TECHNICAL FIELD

Embodiments of the present invention relate to the technical field of refrigeration appliances, and specifically, to the refrigeration appliances.

BACKGROUND

In an existing refrigeration appliance, a control and/or power supply module connected to an external power supply is usually arranged in a compressor room, resulting in a larger volume of the compressor room, thereby affecting a volume of the refrigeration appliance or making the compressor room more crowded.

Some existing technical solutions propose that the control and/or power supply module be arranged on top or back of a box body. However, the existing manner of arranging the control and/or power supply module on the box body poses a safety risk to a connection between a power plug for supplying power to the control and/or power supply module and the control and/or power supply module. Furthermore, the existing arrangement of the control and/or power supply module makes it difficult to burn a computer program to a main control board of the refrigeration appliance in a production line of the refrigeration appliance.

SUMMARY

An objective of the embodiments of the present invention is to provide an improved refrigeration appliance.

Therefore, the embodiments of the present invention provide a refrigeration appliance, including: a box body and a door arranged in front of the box body; an accommodating cavity arranged on top of the box body, the accommodating cavity having a first inlet open upward to allow a control and/or power supply module to enter the accommodating cavity; and a top cap for closing the first inlet. The control and/or power supply module includes a first connector, and the accommodating cavity is arranged to open toward a rear side of the box body to allow a second connector to be engaged with the first connector from the rear side of the box body.

The accommodating cavity arranged on the top of the box body is adapted to accommodate the control and/or power supply module. At the same time, because the accommodating cavity is also open toward the rear side of the box body and is adapted to be connected to the second connector, the second connector can be conveniently connected to the control and/or power supply module at a user's home or on a production line. For example, because the control and/or power supply module is arranged on the top of the box body, a printed circuit board of the control and/or power supply module can be arranged basically parallel to a horizontal plane, and the second connector from the rear side of the box body can be easily connected to the first connector.

According to the embodiments of the present invention, it is also possible to connect second connectors with different functions to the control and/or power supply module in different situations.

For example, the second connector may be a power plug/socket. In this case, even if the control and/or power supply module is arranged on the top of the box body, a power cable does not need to extend in a foamed layer of the box body and to be connected to the box body in a non-detachable manner as in the prior art. Instead, the power cable for supplying power to the refrigeration appliance from an external power supply may be conveniently and safely connected to the control and/or power supply module from the outside of the box body through the second connector.

In another example, the control and/or power supply module arranged on the top of the box body is arranged on the box body as in the embodiments of the present invention, so that the control and/or power supply module can be accessed from the rear side of the box body. In this way, the refrigeration appliance can be easily connected to the control and/or power supply module in a manufacturer's factory through the second connector that is configured to bum a control program to the control and/or power supply module, so as to write the control program into the control and/or power supply module.

Optionally, the first connector includes a power terminal, and the second connector is configured to supply power to the control and/or power supply module. Therefore, it is possible to supply power to the control and/or power supply module without opening the accommodating cavity. It is also possible to omit embedding the power plug in a thermal insulating layer of the box body, and the power plug used for supplying power to the refrigeration appliance and the power cable can be safely and reliably connected to the refrigeration appliance. Furthermore, because the second connector can be connected to the first connector from the rear side of the box body, the second connector may be disconnected from the first connector. Therefore, it is expectable that the second connector is connected to the first connector only at the user's home, thereby helping reduce complexity of packaging of the refrigeration appliance.

Optionally, the second connector is configured to burn the control program to the control and/or power supply module. Burning the control program in the manufacturer's factory of the refrigeration appliance makes it convenient for the manufacturer to change the control program. According to the arrangement of the box body in the embodiments of the present invention, during manufacturing, even if the step of control program burning is arranged after mounting of the top cap, the program burning can be completed without detaching the top cap again, so that production efficiency of the production line can be significantly improved. Moreover, because the control and/or power supply module is arranged on the top of the box body, the printed circuit board of the control and/or power supply module can be arranged basically parallel to the horizontal plane, and the second connector from the rear side of the box body can be easily connected to the first connector.

Optionally, the control and/or power supply module includes the printed circuit board, the first connector includes a connection terminal arranged on the printed circuit board, and the second connector is configured to be connected to the connection terminal to burn the control program to the control and/or power supply module. Therefore, program burning is implemented by engaging the first connector with the second connector. The connection terminal may be arranged, for example, on a surface of the printed circuit board, and the second connector inserted from the rear side of the box body may be inserted into the accommodating cavity in a direction parallel to the printed circuit board, so as to be conveniently connected to the connection terminal (such as a conductive sheet or a conductive foil/coating) arranged on the printed circuit board. Thus, an improvement in production efficiency is expectable without complicating a structure of the control and/or power supply module.

Optionally, the box body includes a concave portion concave forward from a rear surface of the box body, and the second connector is at least partially accommodated in the concave portion. Therefore, the second connector may be arranged at least partially in the concave portion to reduce space occupied by the second connector between the rear surface of the box body and a wall. The manufacturer of the refrigeration appliance can control an extent to which the second connector protrudes from the rear surface of the box body or arrange the second connector in the concave portion entirely as needed. For example, an abrupt protrusion due to the second connector may be avoided on the rear surface of the box body, so that the rear side of the box body is relatively flat, and a gap between the rear surface of the box body and the wall may be controllable or even avoided when the box body is placed.

Optionally, the control and/or power supply module includes the printed circuit board extending in a horizontal direction, and the second connector is adapted to be plugged with the first connector from the rear side of the box body in parallel with the printed circuit board. In this implementation solution, a plugging direction of the second connector is basically parallel to the printed circuit board arranged horizontally, thereby significantly reducing an overall height of the control and/or power supply module after the plugging. More longitudinal space may be reserved for compartments by reducing the height of the control and/or power supply module, which also helps increase a volume of the refrigeration appliance. Moreover, the top of the refrigeration appliance protrudes upward to a small extent so that a top surface of the refrigeration appliance is relatively flat.

Optionally, the box body includes a back plate, an upper plate, and an accommodating housing. The upper plate has a first opening, the accommodating housing is connected to the upper plate through the first opening, and the control and/or power supply module is at least partially accommodated in the accommodating housing. In this way, the accommodating cavity opens upward easily while allowing insertion of the second connector from the rear side of the box body.

Optionally, a rear end of the accommodating housing is at least partially connected to the back plate. Thus, the accommodating housing is assembled with the back plate and the upper plate, which helps improve stability of an assembly structure and ensures that the accommodating housing is reliably mounted on the top of the refrigeration appliance. Furthermore, the connection between the accommodating housing and the back plate helps reduce the structural complexity of the back plate and the upper plate and the complexity of assembling the accommodating housing with the back plate and the upper plate.

Optionally, the accommodating housing forms a part of the rear surface of the box body, and the accommodating housing has a second inlet open toward the rear side of the box body to allow the second connector to be engaged with the first connector. Therefore, the accommodating cavity can open toward the rear side of the box body easily and reliably by the structure of the accommodating housing, and the second connector is engaged with the control and/or power supply module more conveniently.

Optionally, the accommodating housing includes a pair of connecting walls that are opposite to each other and extend from rear to front, and the second inlet is provided between the pair of connecting walls. Thus, the pair of connecting walls can achieve guiding and positioning functions.

Optionally, the second connector is at least partially arranged between the pair of connecting walls. Therefore, the pair of connecting walls jointly enclose at least a part of the concave portion to accommodate the second connector.

Optionally, the back plate includes a second opening, and the accommodating housing includes an extending portion connected to the back plate through the second opening. Therefore, reliable fixing to the back plate is achieved by the extending portion, and the extending portion is connected through the second opening to ensure sealing performance of the connection between the accommodating housing and the back plate.

Optionally, the extending portion at least partially extends downward beyond a lower boundary of the accommodating cavity. Therefore, the whole accommodating cavity is flattened, so that the volume of the refrigeration appliance is increased by reducing the height of the accommodating cavity. Meanwhile, effective contact between the accommodating housing and the back plate is achieved by sufficiently extending the extending portion downward, so as to achieve reliable fixing, and the second connector may be arranged on the box body more easily.

Optionally, the extending portion has a concave portion that is concave forward and configured to accommodate at least a part of the second connector. Thus, the second connector is concealed in the concave portion, and the rear surface of the box body may have no abrupt protrusion, so that the rear side of the box body is relatively flat. It is expectable that there is almost no gap between the rear surface of the box body and the wall when the box body is placed.

Optionally, a bottom wall of the accommodating housing is at a non-zero angle with the extending portion. Thus, space occupied by the accommodating housing in the horizontal plane is minimized, thereby helping implement miniaturization design of the control and/or power supply module. For example, the angle may be 90 °.

Optionally, a cross section of the accommodating housing in a first plane is in an L shape, and the accommodating cavity and the extending portion are arranged in two arms of the L shape respectively, where the first plane is a plane defined by an up-down direction and a frontrear direction of the box body. The L-shaped accommodating housing can desirably fit a relative position relationship between the back plate and the upper plate, thereby ensuring that the accommodating housing, the back plate, and the upper plate are properly mounted.

Optionally, the extending portion includes a positioning hole to position the second connector. Thus, the second connector may be quickly plugged in place under positioning guidance of the positioning hole when inserted from the rear side of the box body. This is even more beneficial for enhancing productivity when the second connector is a plug for program burning.

Optionally, the accommodating housing includes a rear wall arranged above the back plate, and the top cap is connected to the rear wall. Thus, the accommodating housing and the top cap both extend backward to the top of the back plate. In this way, the whole control and/or power supply module is arranged on a rear side of the top of the box body, and external materials may be prevented from entering the accommodating cavity.

Optionally, in the front-rear direction of the box body, the rear wall of the accommodating housing is flush with a rear end of the upper plate. Thus, the rear side of the box body is flat, and the refrigeration appliance fits better with the wall when placed against the wall.

Optionally, in the front-rear direction of the box body, the rear wall of the accommodating housing protrudes backward relative to the rear end of the upper plate. The rear wall of the accommodating housing protrudes backward, and the back plate also bulges backward accordingly, thereby further increasing the volume of the refrigeration appliance by the bulging of the back plate.

Optionally, the control and/or power supply module includes a holder and the printed circuit board carried on the holder, and the holder is connected to the accommodating housing and has a cut corresponding to the first connector. The printed circuit board and the accommodating housing can be positioned accurately, thereby facilitating accurate engagement between the first connector with the second connector. In some embodiments, the holder and the printed circuit board may be pre-assembled into a module and integrally mounted in the accommodating cavity.

Optionally, a second fixing portion is arranged at the cut of the holder, to implement fixing with a shell of the first connector and the accommodating housing. Thus, reliable positioning of the holder, the first connector, and the accommodating housing is realized by the second fixing portion, so as to effectively increase position accuracy of the second connector and the first connector.

Optionally, the top cap forms a part of the rear surface of the box body. Thus, the top cap extends backward to the rear side of the box body, to make the upper plate look more intact and facilitate punching and positioning of the first opening during manufacturing. Furthermore, the top cap can serve as a shield for the second connector engaged from the rear side of the box body and is dustproof and waterproof, which helps prevent external materials from entering the accommodating cavity.

Optionally, a waterproof mechanism is arranged on the accommodating housing and/or the upper plate through the first opening, for blocking the accommodating cavity from the outside jointly with the top cap or independently. Thus, the control and/or power supply module in the accommodating cavity is protected by the waterproof mechanism to prevent liquid from entering the accommodating cavity to cause a short circuit of the printed circuit board, thereby eliminating electrical safety hazards.

Optionally, the top cap includes first buckle portions, the accommodating housing includes first fitting portions, and the first buckle portions are adapted to couple with or decouple from the first fitting portions. The top cap is therefore firmly fixed onto the accommodating housing.

Optionally, the box body includes a water outlet arranged on the rear side, and the water outlet is in fluid communication with the accommodating cavity and the rear side of the box body. Thus, liquid accumulated in the accommodating cavity may be quickly drained through the water outlet, so as to avoid short circuit and burnout of the control and/or power supply module due to contact with the liquid, thereby eliminating the electrical safety hazards. For example, the liquid may include condensed water.

Optionally, the box body includes a water outlet provided on the rear side, and the water outlet is provided at an end of a slot or is in fluid communication with the slot, the slot being provided around the accommodating cavity and arranged outside the accommodating cavity. This helps prevent external liquid from spraying or seeping into the accommodating cavity. Furthermore, the slot can store and guide water. Liquid blocked outside the accommodating cavity by the waterproof mechanism is guided by the slot to the water outlet for draining.

Optionally, the water outlet is adapted to drain liquid accumulated between the upper plate and the accommodating housing. Thus, external liquid is prevented from seeping into the box body through a gap between the upper plate and the accommodating housing, thereby helping improve sealing performance of a shell of the box body.

Optionally, the box body includes a concave portion concave forward from a rear surface of the box body, the second connector is at least partially accommodated in the concave portion, and the water outlet is provided on the concave portion. Therefore, liquid in the accommodating cavity may be drained out of the accommodating cavity through a shortest path.

Optionally, there are a plurality of water outlets distributed on two sides of the second connector. Thus, liquid in any position of the accommodating cavity may reach an appropriate water outlet through a relatively short path.

Optionally, the box body includes a back plate, an upper plate, and an accommodating housing. The control and/or power supply module is at least partially arranged in the accommodating housing, and the water outlets are provided in a rear wall of the accommodating housing. Thus, liquid in the accommodating cavity is drained from the rear side of the box body, and the drained liquid cannot be seen from both sides and a front of the box body, thereby improving user experience.

Optionally, the control and/or power supply module includes a holder and a printed circuit board carried on the holder; the accommodating housing includes a boss protruding upward from a bottom wall of the accommodating housing to support the holder; a plane in which the boss is arranged is at a non-zero angle with the bottom wall, and the water outlet is in fluid communication with space between the bottom wall and the holder. Therefore, the bottom wall or the boss is designed to be an inclined surface to efficiently collect liquid in the accommodating cavity for draining.

Optionally, the plane in which the boss is arranged is parallel to the horizontal plane, the bottom wall is inclined toward the water outlet, and a lowest point of the bottom wall is connected to the water outlet. Thus, through cooperation of the inclined surface and the water outlet, the liquid in the accommodating cavity is quickly guided to the water outlet and is then drained through the water outlet.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a refrigeration appliance according to an embodiment of the present invention.

FIG. 2 is an exploded view of the refrigeration appliance shown in FIG. 1. FIG. 3 is a partial enlarged view of a region in which an accommodating cavity is arranged in FIG. 1.

FIG. 4 is a schematic diagram of a first connector being engaged with a first type of second connector in FIG. 3.

FIG. 5 is a schematic diagram of an accommodating housing in FIG. 2.

FIG. 6 is a sectional view of the accommodating housing along an A-A direction shown in FIG. 5.

FIG. 7 is a sectional view of the accommodating housing along a B-B direction shown in FIG. 5.

FIG. 8 is a partial enlarged view of a region C of a holder in FIG. 2.

FIG. 9 is a schematic diagram of an accommodating housing being connected to an upper plate in FIG. 1.

FIG. 10 is a schematic diagram of a first connector being engaged with a second type of second connector in FIG. 3.

FIG. 11 is a schematic diagram of another refrigeration appliance according to an embodiment of the present invention.

In the accompanying drawings:

1 - refrigeration appliance; 10 - box body; 10a - rear side of box body; 101 - rear surface; 102 - concave portion; 103 - back plate; 104 - upper plate; 104a - rear end of upper plate; 105 - first opening; 106 - second opening; 107, 109 - water outlet; 108 - third fixing portion; 11 - waterproof mechanism; 111 - waterproof wall; 112 - water guiding groove; 113 - slot; 12 - accommodating cavity; 121 - first inlet; 122 - first flange; 123 - second flange; 124 - second buckle portion;

125 - front wall; 126 - side wall; 127 - second fitting portion; 128 - wire inlet; 13 - top cap; 131 - first buckle portion; 132 - first fixing portion; 133 - rear wall of top cap; 14 - accommodating housing; 141 - second inlet; 142 - connecting wall; 143 - extending portion; 144 - bottom wall; 145 - positioning hole; 146 - rear wall of accommodating housing; 147 - first fitting portion; 148 - boss; 149 - bottom surface; 2 - control and/or power supply module; 21 - first connector; 211 - shell; 22 - printed circuit board; 23 - holder; 231 - cut; 232 - second fixing portion; 233 - clamping portion; 234 - hook portion; 235 - stop wall; 3,4 - second connector; 41 - positioning pin; x - width direction of box body; y - depth direction of box body; z - height direction of box body. DETAILED DESCRIPTION

To make the foregoing objectives, features, and advantages of the present invention more obvious and comprehensible, specific embodiments of the present invention are described below in detail with reference to the accompanying drawings.

FIG. l is a schematic diagram of a refrigeration appliance 1 according to an embodiment of the present invention. FIG. 2 is an exploded view of the refrigeration appliance 1 shown in FIG. 1.

For example, the refrigeration appliance 1 may include a refrigerator, a freezer, a refrigeration cabinet, or the like.

For ease of description, a width direction of the refrigeration appliance 1 is referred to as a direction x, a depth direction is referred to as a direction y, and a height direction is referred to as a direction z. In this implementation solution, a front-rear direction is parallel to the direction y.

Specifically, referring to FIG. 1 and FIG. 2, the refrigeration appliance 1 of this implementation solution may include a box body 10 having at least one storage compartment and a door (not shown in the figure) arranged in front of the box body 10. The door is adapted to close the storage compartment c. The box body 10 may include a shell and at least one liner arranged in the shell to define a corresponding compartment (not shown in the figure), the compartment has a front-facing (in an arrow direction in the direction y shown in the figure) opening (not shown in the figure), and the door is adapted to open or close the opening. Space between the shell and the liner may be filled with a thermal insulating material, and this space filled with the thermal insulating material may be referred to as a foamed layer or a thermal insulating layer. The shell may include a back plate 103, a pair of side plates, a bottom plate, and an upper plate 104, where the bottom plate, the side plates, and the liner are not shown in the figure.

More specifically, in the direction z, the refrigeration appliance 1 may include an accommodating cavity 12 arranged on the top of the box body 10. The accommodating cavity 12 may have a first inlet 121 open upward (in an arrow direction in the direction z shown in the figure) to allow a control and/or power supply module 2 to enter the accommodating cavity 12. The control and/or power supply module 2 may include a control module for controlling operating parameters or states of components in the refrigeration appliance 1 and/or responding to a control instruction from a user. The control and/or power supply module 2 may include a power supply module for coupling with an external power supply to supply power to the components in the refrigeration appliance 1.

Furthermore, the refrigeration appliance 1 may include a top cap 13 for closing the first inlet 121. In the direction z, the top cap 13 is arranged on the top of the box body 10 from above to close the first inlet 121.

The top cap 13 may be fixed to the box body 10 by first fixing portions 132 to avoid that the top cap 13 is displaced unexpectedly during use of the refrigeration appliance 1 to expose the accommodating cavity 12. For example, the first fixing portions 132 may include screws. The first fixing portions 132 may be arranged on both sides of the top cap 13 in the direction x. The first fixing portions 132 may be arranged at an end of the top cap 13 close to a rear side 10a of the box body 10 and distributed on two sides of the top cap 13 in the direction x. Furthermore, the first fixing portions 132 may also be arranged at an end of the top cap 13 away from the rear side 10a of the box body 10 and distributed on the two sides of the top cap 13 in the direction x, as shown in FIG. 11.

Furthermore, the control and/or power supply module 2 may include a first connector 21, and the accommodating cavity 12 is arranged to open toward the rear side 10a of the box body 10 to allow a second connector 3 (as shown in FIG. 4 and FIG. 11) or a second connector 4 (as shown in FIG. 10) to be engaged with the first connector 21 from the rear side 10a of the box body 10.

The accommodating cavity 12 arranged on the top of the box body 10 is adapted to accommodate the control and/or power supply module 2. Besides, because the accommodating cavity 12 is also open toward the rear side 10a ofthe box body lO and is adapted to be connected to the second connector 3 (or the second connector 4), the second connector 3 (or the second connector 4) can be conveniently connected to the control and/or power supply module 2 at a user's home or on a production line. For example, because the control and/or power supply module 2 is arranged on the top of the box body 10, a printed circuit board 22 of the control and/or power supply module 2 can be arranged basically parallel to a horizontal plane, and the second connector 3 (or the second connector 4) from the rear side 10a of the box body 10 can be easily connected to the first connector 21.

According to the embodiments of the present invention, it is also possible to connect second connectors with different functions to the control and/or power supply module 2 in different situations. For example, the second connector 3 may be a power plug/socket. In this case, even if the control and/or power supply module 2 is arranged on the top of the box body 10, a power cable does not need to extend in a foamed layer of the box body 10 to be connected to the box body 10 in a non-detachable manner as in the prior art. Instead, the power cable for supplying power to the refrigeration appliance 1 from an external power supply may be conveniently and safely connected to the control and/or power supply module 2 from the outside of the box body 10 through the second connector 3. In another example, the control and/or power supply module 2 arranged on the top of the box body 10 is arranged on the box body 10 as in the embodiments of the present invention, so that the control and/or power supply module 2 can be accessed from the rear side 10a of the box body 10. In this way, the refrigeration appliance 1 can be easily connected to the control and/or power supply module 2 in a manufacturer's factory through the second connector 4 that is configured to bum a control program to the control and/or power supply module 2, so as to write the control program into the control and/or power supply module 2.

In a specific implementation, the first connector 21 may include a power terminal, and the second connector 3 may be used to supply power to the control and/or power supply module 2. For example, the second connector 3 has one end coupled with an external power supply and the other end coupled with the first connector 21 from the rear side 10a of the box body 10. Therefore, it is possible to supply power to the control and/or power supply module 2 without opening the accommodating cavity 12. It is also possible to omit embedding the power plug in a thermal insulating layer of the box body 10, and the power plug used for supplying power to the refrigeration appliance 1 and the power cable can be safely and reliably connected to the refrigeration appliance 1. Furthermore, because the second connector 3 can be connected to the first connector 21 from the rear side 10a of the box body 10, the second connector 3 may be disconnected from the first connector 21. Therefore, it is expectable that the second connector 3 is connected to the first connector 21 only at the user's home, thereby helping reduce complexity of packaging of the refrigeration appliance 1.

In a specific implementation, referring to FIG. 10, the second connector 4 may be configured to bum a control program to the control and/or power supply module 2. The control program may include a program for controlling operation of components in the refrigeration appliance 1. FIG. 10 is a schematic diagram of the first connector 21 being engaged with the second connector 4 in FIG. 3. Specifically, the control and/or power supply module 2 may include a printed circuit board 22, the first connector 21 may include a connection terminal (not shown) arranged on the printed circuit board 22, and the second connector 3 is configured to be connected to the connection terminal to bum the control program to the control and/or power supply module 2. Therefore, program burning is achieved by engaging the first connector 21 with the second connector 3.

Furthermore, the connection terminal may be arranged, for example, on a surface of the printed circuit board 22, and the second connector 4 inserted from the rear side 10a of the box body 10 may be inserted into the accommodating cavity 12 in a direction parallel to the printed circuit board 22, so as to be conveniently connected to the connection terminal (such as a conductive sheet or a conductive foil/coating) arranged on the printed circuit board 22. Thus, an improvement in production efficiency is expectable without complicating a structure of the control and/or power supply module 2.

Furthermore, there may be a plurality of printed circuit boards 22 that are distributed in different positions of the accommodating cavity 12. Different components in the refrigeration appliance 1 may be connected to corresponding printed circuit boards 22 respectively.

Thus, burning the control program in the manufacturer's factory of the refrigeration appliance 1 makes it convenient for the manufacturer to change the control program. According to the arrangement of the box body 10 in the embodiments of the present invention, during manufacturing, even if the step of control program burning is arranged after mounting of the top cap 13, the program burning can be completed without detaching the top cap 13 again, so that production efficiency of the production line can be significantly improved. Moreover, because the control and/or power supply module 2 is arranged on the top of the box body 10, the printed circuit board 22 of the control and/or power supply module 2 can be arranged basically parallel to the horizontal plane, and the second connector 4 from the rear side 10a of the box body 10 can be easily connected to the first connector 21.

In a specific implementation, referring to FIG. 1 to FIG. 4, the box body 10 may include a concave portion 102 concave forward from a rear surface 101 of the box body 10 (that is, in an arrow direction in the direction y shown in the figure), and the second connector 3 is at least partially accommodated in the concave portion 102. FIG. 3 is a partial enlarged view of a region in which the accommodating cavity 12 is arranged in FIG. 1. FIG. 4 is a schematic diagram of the first connector 21 being engaged with the second connector 3 in FIG. 3. Specifically, the concave portion 102 may be arranged close to the top on the rear side 10a of the box body 10, to accommodate at least a plugging part of the second connector 3 with the first connector 21. A remaining part of the second connector 3, such as the power cable, may be exposed outside the box body 10, for example, extending along the rear surface 101 of the box body 10 to be connected to an external power supply arranged in any position.

Furthermore, the accommodating cavity 12 may have a second inlet 141 open toward the rear side 10a of the box body 10, where the second inlet 141 is in communication with or is provided in the concave portion 102 so that the second connector 3 arranged in the concave portion 102 is engaged with the first connector 21 arranged in the accommodating cavity 12.

Therefore, the second connector 3 may be arranged at least partially in the concave portion 102, so as to reduce space occupied by the second connector 3 between the rear surface 101 of the box body 10 and a wall. The manufacturer of the refrigeration appliance 1 can control an extent to which the second connector 3 protrudes from the rear surface 101 of the box body 10 or arrange the second connector 3 in the concave portion 102 entirely as needed. For example, an abrupt protrusion due to the second connector 3 may be avoided on the rear surface 101 of the box body 10, so that the rear side lOa ofthe box body 10 is relatively flat, and a gap between the rear surface 101 of the box body 10 and the wall may be controllable or even avoided when the box body 10 is placed.

In a specific implementation, referring to FIG. 2 to FIG. 6, the box body 10 may include an accommodating housing 14 in which the control and/or power supply module 2 is at least partially arranged. In this way, the accommodating cavity 12 opens upward while allowing insertion of the second connector 3 from the rear side 10a of the box body 10 more easily. FIG. 5 is a schematic diagram of the accommodating housing 14 in FIG. 2. FIG. 6 is a sectional view of the accommodating housing 14 along an A- A direction shown in FIG. 5. In FIG. 6, a holder 23 and a part of the printed circuit board 22 have been fixed in the accommodating housing 14.

Specifically, the printed circuit board 22 may extend in a horizontal direction, where the horizontal direction may be parallel to a plane defined by the direction x and the direction y. For example, the printed circuit board 22 and the holder 23 adapted to carry the printed circuit board 22 may be fixed in the accommodating cavity 12 overall in parallel with the plane defined by the direction x and the direction y.

Furthermore, the second connector 3 is adapted to be plugged with the first connector 21 from the rear side 10a of the box body 10 in parallel with the printed circuit board 22. For example, the second connector 3 enters the concave portion 102 from the rear side 10a of the box body 10 in the direction y shown in the figure and is then plugged with the first connector 21 through the second inlet 141.

In this implementation, a plugging direction of the second connector 3 is basically parallel to the printed circuit board 22 arranged horizontally, thereby significantly reducing an overall height of the control and/or power supply module 2 after the plugging. More longitudinal (that is, in the direction z) space may be reserved for compartments by reducing the height of the control and/or power supply module 2, which also helps increase a volume of the refrigeration appliance 1. Moreover, the top of the refrigeration appliance 1 protrudes upward to a small extent by reducing the height of the control and/or power supply module 2, so that a top surface of the refrigeration appliance 1 is relatively flat.

In a specific implementation, still referring to FIG. 1 to FIG. 6, the box body 10 may include a back plate 103 and an upper plate 104, and the upper plate 104 may have a first opening 105. For example, the first opening 105 may be provided in the middle of the upper plate 104 and extend backward to a rear end 104a of the upper plate 104.

Specifically, the accommodating housing 14 may be connected to the upper plate 104 through the first opening 105. For example, a front end of the accommodating housing 14 in the direction y and two sides of the accommodating housing 14 in the direction x each have a first flange 122 extending in the horizontal direction, and an edge, which forms the first opening 105, of the upper plate 104 is in surface contact with the first flange 122 to ensure a good sealing effect. In the direction z, the first flange 122 and the edge of the first opening 105 on the same side at least partially overlap.

A plurality of third fixing portions 108 may be arranged on the upper plate 104 along the first opening 105, and a plurality of second fitting portions 127 are correspondingly arranged around the first inlet 121 on the accommodating housing 14. The third fixing portions 108 are adapted to be coupled with or decoupled from the corresponding second fitting portions 127, to connect the accommodating housing 14 with the upper plate 104 in a detachable manner.

For example, the third fixing portion 108 may include a hook extending downward from the upper plate 104, and the second fitting portion 127 may include a receiving hole provided on the first flange 122. During assembling, the upper plate 104 is pressed downward from above the accommodating housing 14, and the third fixing portions 108 extend into and are coupled with the corresponding second fitting portions 127, thereby fixing the accommodating housing 14 and the upper plate 104.

Furthermore, screw holes may be provided on the two sides of the accommodating housing 14 in the direction x, and the first fixing portions 132 arranged on the top cap 13 may fix the upper plate 104 and the accommodating housing 14 together sequentially from top to bottom. The edge of the first opening 105 is sandwiched between the first flange 122 and the top cap 13.

Furthermore, a rear end of the accommodating housing 14 may be at least partially connected to the back plate 103. For example, the rear end of the accommodating housing 14 may have a second flange 123 extending in a vertical direction, and the back plate 103 is in surface contact with the second flange 123 to ensure a good sealing effect. In the direction y, the second flange 123 and the back plate 103 at least partially overlap.

Screw holes may be provided in corresponding positions of the second flange 123 and the back plate 103 so that the accommodating housing 14 and the back plate 103 may be fixed together by screws. In the direction y, the back plate 103 is arranged behind the second flange 123.

Thus, the accommodating housing 14 is assembled with the back plate 103 and the upper plate 104, which helps improve stability of an assembly structure and ensures that the accommodating housing 14 is reliably mounted on the top of the refrigeration appliance 1. Furthermore, the connection between the accommodating housing 14 and the back plate 103 helps reduce the structural complexity of the back plate 103 and the upper plate 104 and the complexity of the assembling the accommodating housing 14 with the back plate 103 and the upper plate 104.

In a specific implementation, still referring to FIG. 1 to FIG. 5, the accommodating housing 14 may form a part of the rear surface 101 of the box body 10. Specifically, the rear end of the accommodating housing 14 may include a rear wall 146 adapted to form a boundary of the accommodating cavity 12 and the second flange 123 extending downward from the rear wall 146. Therefore, the accommodating cavity 12 can open toward the rear side 10a of the box body 10 easily and reliably by the structure of the accommodating housing 14, and the second connector 3 is engaged with the control and/or power supply module 2 more conveniently.

After assembling, the back plate 103 covers the second flange 123, and the rear wall 146 of the accommodating housing 14 is arranged above the back plate 103 and is exposed outside the back plate 103. Furthermore, the top cap 13 is connected to the rear wall 146 of the accommodating housing 14. For example, a rear wall 133 of the top cap 13 covers at least a part of the rear wall 146 of the accommodating housing 14, as shown in FIG. 6. Thus, the accommodating housing 14 and the top cap 13 both extend backward to the top of the back plate 103. In this way, the whole control and/or power supply module 2 is arranged on a rear side of the top of the box body 10, and external materials may be prevented from entering the accommodating cavity 12. Furthermore, the top cap 13 can close the second inlet 141 from above, thereby shielding the second connector 3 (or the second connector 4) that is engaged from the rear side 10a of the box body 10, for example, preventing dust, foreign matters, water stains or the like from seeping into a joint between the first connector 21 and the second connector 3 (or the second connector 4) to affect a connection effect.

Furthermore, a part of the rear wall 146 of the accommodating housing 14 that is not covered by the top cap 13 is exposed and forms a part of the rear surface 101 of the box body 10.

Furthermore, the top cap 13 also forms a part of the rear surface 101 of the box body 10. Thus, the top cap 13 extends backward to the rear side 10a of the box body 10, to make the upper plate 104 look more intact and facilitate punching and positioning of the first opening 105 during manufacturing.

Furthermore, the accommodating housing 14 has an opening open upward to expose the accommodating cavity 12 from above, and the opening forms the first inlet 121.

Furthermore, in a front-rear direction of the box body 10 (that is, the direction y shown in the figure), the rear wall 146 of the accommodating housing 14 may be flush with the rear end 104a of the upper plate 104. Thus, the rear side 10a of the box body 10 is flat, and the refrigeration appliance 1 fits better with the wall when placed against the wall.

Furthermore, the accommodating housing 14 further has an opening open backward to be in communication with the accommodating cavity 12 from the rear side, and the opening forms the second inlet 141. The second inlet 141 may be provided on the rear wall 146 of the accommodating housing 14. Therefore, the second inlet 141 is provided on the rear surface 101 of the box body 10 to allow insertion of the second connector 3 (or the second connector 4), so that the second connector 3 (or the second connector 4) may be engaged with the control and/or power supply module 2 more conveniently.

In a specific implementation, the back plate 103, the upper plate 104, and the accommodating housing 14 may define a partial boundary of a thermal insulating space of the box body 10, where the thermal insulating space is filled with the thermal insulating material. An inner side of the accommodating housing 14 (that is, a side away from the accommodating cavity 12) is combined with the thermal insulating material.

In a specific implementation, referring to FIG. 3 to FIG. 5, the accommodating housing 14 may include a pair of connecting walls 142 that are opposite to each other and extend from rear to front, and the second inlet 141 is provided between the pair of connecting walls 142. Thus, the pair of connecting walls 142 can achieve guiding and positioning functions. For example, the connecting walls 142 may be parallel to a plane defined by the direction y and the direction z and connect the first connector 21 to the rear wall 146 of the accommodating housing 14. In this way, the accommodating cavity 12 is closed from the rear, and the second connector 3 (or the second connector 4) can be guided to be quickly plugged with the first connector 21.

Specifically, space between the pair of connecting walls 142 forms the concave portion

102, and accordingly, the second connector 3 (or the second connector 4) is at least partially arranged between the pair of connecting walls 142. Therefore, the pair of connecting walls 142 jointly enclose at least a part of the concave portion 102 to accommodate the second connector 3 (or the second connector 4).

In a specific implementation, referring to FIG. 2 to FIG. 7, the back plate 103 may include a second opening 106, and the accommodating housing 14 may include an extending portion 143 connected to the back plate 103 through the second opening 106. FIG. 7 is a sectional view of the accommodating housing 14 being connected to the upper plate 104 in a B-B direction shown in FIG. 5

Specifically, the second opening 106 may be provided on an upper edge of the back plate

103.

Furthermore, the bottom wall 144 and the extending portion 143 of the accommodating housing 14 may form a non-zero angle. Thus, space occupied by the accommodating housing 14 in the horizontal plane is minimized, thereby facilitating miniaturization design of the control and/or power supply module 2.

For example, the angle may be 90 °. That is, the extending portion 143 may be arranged generally perpendicular to the accommodating cavity 12 and extend downward from the middle of the rear end of the accommodating housing 14, so that an overall cross section of the accommodating housing 14 in the first plane is in an L shape, as shown in FIG. 6, and the accommodating cavity 12 and the extending portion 143 are arranged in two arms of the L shape respectively. The first plane is a plane defined by an up-down direction (that is, the direction z) and a front-rear direction (that is, the direction y) of the box body 10. The L-shaped accommodating housing 14 can well fit a relative position relationship between the back plate 103 and the upper plate 104 that are arranged perpendicular to each other, thereby ensuring that the accommodating housing 14, the back plate 103, and the upper plate 104 are properly mounted.

Furthermore, the second flange 123 may be arranged around the periphery of the extending portion 143, so that an edge, which forms the second opening 106, of the back plate 103 and the second flange 123 surrounding the extending portion 143 are in surface contact and fixed by screws.

Therefore, reliable fixing to the back plate 103 is achieved by the extending portion 143, and the extending portion 143 is connected through the second opening 106 to ensure sealing performance of the connection between the accommodating housing 14 and the back plate 103.

In a specific implementation, referring to FIG. 6, the extending portion 143 at least partially extends downward beyond a lower boundary of the accommodating cavity 12. For example, the lower boundary of the accommodating cavity 12 may be the bottom wall 144 of the accommodating housing 14. Therefore, the whole accommodating cavity 12 is flattened, so that the volume of the refrigeration appliance 1 is increased by reducing a height of the accommodating cavity 12.

Meanwhile, effective contact between the accommodating housing 14 and the back plate 103 is achieved by sufficiently extending the extending portion 143 downward, so as to achieve reliable fixing. Moreover, the second connector 3 (or the second connector 4) may be arranged on the box body 10 more easily.

Furthermore, the extending portion 143 may include a pair of connecting walls 142 arranged opposite to each other in the direction x and a bottom surface 149 arranged between the pair of connecting walls 142, and space defined by the pair of connecting walls 142 and the bottom surface 149 forms the concave portion 102.

The bottom surface 149 extends upward and forward from a lowest point of the extending portion 143 to be connected to the bottom wall 144. For example, the bottom surface 149 may be an arc surface so that the rear surface 101 of the box body 10 makes an arc transition to the first connector 21. Alternatively, an upper part of the bottom surface 149 may be a vertical surface to avoid obstructing forward movement of the second connector 3 (or the second connector 4), and a lower part of the bottom surface 149 may be an arc surface.

Thus, the second connector 3 is concealed in the concave portion 102, and the rear surface 101 of the box body 10 may have no abrupt protrusion, so that the rear side 10a of the box body 10 is relatively flat. It is expectable that there is almost no gap between the rear surface 101 of the box body 10 and the wall when the box body 10 is placed.

In a specific implementation, still referring to FIG. 10, the extending portion 143 may include a positioning hole 145 to position the second connector 4. Thus, the second connector 4 may be quickly inserted in place under positioning guidance of the positioning hole 145 when inserted from the rear side 10a of the box body 10. This is even more beneficial for enhancing productivity when the second connector 4 is a plug for program burning.

For example, an axial direction of the positioning hole 145 may be parallel to the direction y to guide the second connector 3 to move forward in the direction y to be engaged with the first connector 21.

The positioning hole 145 may be provided below the accommodating cavity 12 and a projection of the positioning hole 145 in the direction z may overlap with the bottom wall 144. A positioning pin 41 may be arranged accordingly below the burning plug of the second connector 4, so that the burning plug can also be smoothly plugged into the first connector 21 when the positioning pin 41 is inserted into the positioning hole 145.

In a specific implementation, referring to FIG. 2 to FIG. 8, the control and/or power supply module 2 may include a holder 23 and a printed circuit board 22 carried on the holder 23. FIG. 8 is a partial enlarged view of a region C of the holder 23 in FIG. 2.

It should be noted that there may be a plurality of holders 23 and printed circuit boards 22, and sizes and shapes of different holders 23 may be determined according to sizes of the printed circuit boards 22 to be carried. FIG. 8 only shows an example of the holder 23 for carrying the printed circuit board 22 on which the first connector 21 is arranged. The holder 23 is mounted at the rear of the accommodating cavity 12 so that the first connector 21 is plugged with the second connector 3 (or second connector 4) inserted from the rear side 10a of the box body 10.

Specifically, after being pre-assembled into a module, the printed circuit board 22 and the holder 23 shown in FIG. 8 are mounted together in the accommodating cavity 12 of the accommodating housing 14 shown in FIG. 5, and then the accommodating housing 14, the back plate 103, and the upper plate 104 are assembled together to form an assembly structure shown in FIG. 4. Thus, the holder 23 and the printed circuit board 22 may be pre-assembled into a module and integrally mounted in the accommodating cavity 12.

Furthermore, the holder 23 is connected to the accommodating housing 14. For example, a plurality of second buckle portions 124 may be arranged on the accommodating housing 14 to fix the holder 23 reliably in the accommodating cavity 12. The plurality of second buckle portions 124 may be arranged around the holder 23 at intervals. Based on a fixed position of the holder 23 in the accommodating cavity 12, the second buckle portions 124 may be arranged in positions such as the bottom wall 144 and a side wall of the accommodating housing 14 (such as a front wall 125 opposite to the rear wall 144 of the accommodating housing 14).

Furthermore, the holder 23 may have a cut 231 corresponding to the first connector 21. The cut 231 is in communication with the second inlet 141 after the holder 23 is mounted into the accommodating cavity 12. Therefore, the printed circuit board 22 and the accommodating housing 14 can be positioned accurately, thereby facilitating accurate engagement between the first connector 21 and the second connector 3 (or the second connector 4).

In a specific implementation, a second fixing portion 232 may be arranged at the cut 231 of the holder 23, to implement fixing with a shell 211 of the first connector 21 and the accommodating housing 14.

Specifically, the second fixing portion 232 may include a pair of clamping portions 233 opposite to each other on two sides of the cut 231 in the direction x, and hook portions 234 are arranged in corresponding positions on the rear wall 144 of the accommodating housing 14. When the holder 23 is mounted into the accommodating cavity 12, the clamping portions 233 clamp the corresponding hook portions 234, so that the holder 23 and the accommodating housing 14 are fixed together.

For example, the clamping portion 233 and the hook portion 234 each include a groove open toward each other, and one of walls forming the groove is inserted into the other groove. Thus, the clamping portion 233 and the hook portion 234 lock each other tightly in the direction y, thereby helping limit backward movement of the holder 23 in the accommodating cavity 12.

Furthermore, the second fixing portion 232 may include a stop wall 235 extending towards the center from the left and right sides and/or lower part of the cut 231, and an edge of the shell 211 of the first connector 21 may be folded outward to form a flange.

When the holder 23 is mounted into the accommodating cavity 12, the stop wall 235 is arranged between the flange and the printed circuit board 22 to limit forward movement of the holder 23 in the accommodating cavity 12.

Thus, reliable positioning among the holder 23, the first connector 21, and the accommodating housing 14 is realized by the second fixing portion 232, so as to effectively increase position accuracy of the second connector 3 (or the second connector 4) and the first connector 21.

In a specific implementation, still referring to FIG. 2 to FIG. 8, a waterproof mechanism 11 may be arranged on the accommodating housing 14 and/or the upper plate 104 along the first opening 105, to block the accommodating cavity 12 from the outside jointly with the top cap 13, or independently block the accommodating cavity 12 from the outside.

Specifically, there may be a plurality of waterproof mechanisms 11 that are arranged at intervals around the accommodating cavity 12. For example, the waterproof mechanisms 11 may be arranged continuously around the accommodating cavity 12. In another example, at least some of the waterproof mechanisms 11 may be distributed discontinuously, but the at least some of the waterproofing mechanisms 11 form a closed-loop structure around the accommodating cavity 12 as a whole.

Furthermore, the waterproof mechanism 11 may include a waterproof wall 111 whose end is higher than the upper plate 104 in the direction z. For example, the accommodating housing 14 may include a bottom wall 144, a front wall 125, a rear wall 146, and a pair of side walls 126. The bottom wall 144, the front wall 125, the rear wall 146, and the pair of side walls 126 of the accommodating housing 14 define the accommodating cavity 12. Each end of the front wall 125, the rear wall 146, and the pair of side walls 126 away from the bottom wall 144 of the accommodating housing 14 is higher than the upper plate 104 in the direction z to form the waterproof wall 111.

Furthermore, the top cap 13 is in contact with the waterproof wall 111 when closing the first inlet 121, as shown in FIG. 5, which helps enhance an insulating effect on the accommodating cavity 12.

Furthermore, the waterproof mechanism 11 may include a water guiding groove 112 concave downward. For example, the water guiding groove 112 may be formed on the upper plate 104 by sheet metal along front, left, and right sides of the first opening 105.

Furthermore, compared with the waterproof wall 111, the water guiding groove 112 may be provided outside the accommodating cavity 12 to form waterproof barriers at inner and outer layers.

Thus, the control and/or power supply module 2 in the accommodating cavity 12 is protected by the waterproof mechanisms 11 to prevent liquid from entering the accommodating cavity 12 to cause short circuit of the printed circuit board 22, thereby eliminating electrical safety hazards.

In a specific implementation, referring to FIG. 2 to FIG. 9, the top cap 13 may include first buckle portions 131, the accommodating housing 14 may include first fitting portions 147, and the first buckle portions 131 are adapted to be coupled with or decoupled from the first fitting portions 147. The top cap 13 is therefore firmly secured to the accommodating housing 14. FIG. 9 is a schematic diagram of the accommodating housing 14 being connected to the upper plate 104 in FIG. 1.

Specifically, the first buckle portion 131 may include a hook that extends downward from the top cap 13, and the first fitting portion 147 includes a receiving slot open backward. During assembling, the top cap 13 pushes the hooks forward in parallel until the corresponding receiving slots are hooked to fix the top cap 13 and the accommodating housing 14.

In a specific implementation, still referring to FIG. 3 to FIG. 7, the box body 10 may include a water outlet 107 provided on the rear side 10a, and the water outlet 107 is in fluid communication with the accommodating cavity 12 and the rear side 10a of the box body 10.

Thus, liquid accumulated in the accommodating cavity 12 may be quickly drained through the water outlet 107, so as to avoid short circuit and burnout of the control and/or power supply module 2 due to contact with the liquid, thereby eliminating the electrical safety hazards. For example, the liquid may include condensed water.

Specifically, the water outlet 107 may be provided in the concave portion 102. Therefore, the liquid in the accommodating cavity 12 may be drained out of the accommodating cavity 12 through a shortest path. Furthermore, the liquid drained through the water outlet 107 first flows into the concave portion 102, and may naturally evaporate over time. Therefore, water stains and the like that affect the appearance do not appear on the back plate 103.

Furthermore, there may be a plurality of water outlets 107 distributed on two sides of the second connector 3 in the direction x. For example, there may be two water outlets 107 that are respectively provided on the pair of connecting walls 142 forming the concave portion 102. Thus, liquid in any position of the accommodating cavity 12 may reach an appropriate water outlet 107 through a relatively short path. Furthermore, the water outlets 107 may be provided on the rear wall 146 of the accommodating housing 14. For example, the water outlets 107 may be provided at joints between the rear wall 146 and the connecting walls 142. Thus, liquid in the accommodating cavity 12 is drained from the rear side 10a of the box body 10, and the drained liquid cannot be seen from both sides and a front of the box body 10, thereby improving better user experience.

In a specific implementation, still referring to FIG. 1 to FIG. 5, FIG. 9, and FIG. 10, the box body 10 may include water outlets 109 provided at the rear side 10a. The water outlets 109 are provided at ends of the slot 113 or in fluid communication with the slot 113, the slot 113 being provided around the accommodating cavity 12 and arranged outside the accommodating cavity 12.

Specifically, the slot 113 may be provided outside the waterproof wall 111.

Furthermore, the water outlets 109 are adapted to drain liquid accumulated between the upper plate 104 and the accommodating housing 14.

Thus, external liquid is prevented from seeping into the box body 10 through a gap between the upper plate 104 and the accommodating housing 14, thereby helping improve sealing performance of the shell of the box body 10.

For example, the water outlet 109 may be provided with a fence to prevent external materials from blocking the water outlet 109, as shown in FIG. 1 to FIG. 4. In another example, the water outlet 109 may not be obstructed so as to facilitate rapid drainage of liquid in the slot 113, as shown in FIG. 5.

In this way, external liquid is prevented from spraying or seeping into the accommodating cavity. Furthermore, the slot 113 can store and guide water. Liquid blocked outside the accommodating cavity 12 by the waterproof mechanism 11 is guided by the slot 113 to the water outlet 109 for draining.

In a specific implementation, still referring to FIG. 2, and FIG. 5 to FIG. 7, the accommodating housing 14 may include a boss 148 protruding upward from the bottom wall 144 thereof to support the holder 23. In other words, the holder 23 is not in direct contact with the bottom wall 144, but is mounted on the boss 148, so that there is a gap between the holder 23 and the bottom wall 144. Specifically, there may be a plurality of bosses 148 that are distributed on the bottom wall 144.

Furthermore, a plane in which the boss 148 is arranged may be at a non-zero angle with the bottom wall 144, and correspondingly, a plane in which the holder 23 is arranged is at a certain angle with the bottom wall 144. Furthermore, the water outlet 107 may be in fluid communication with space between the bottom wall 144 and the holder 23. Therefore, the bottom wall 144 or the boss 148 is designed to be an inclined surface to efficiently collect the liquid in the accommodating cavity 12 for draining.

For example, the angle may be greater than 2 degrees.

For example, the plane in which the boss 148 is arranged may be parallel to the horizontal plane, while the bottom wall 144 is inclined toward the water outlet 107 and a lowest point of the bottom wall 144 is connected to the water outlet 107. Thus, through cooperation of the inclined surface and the water outlet 107, liquid in the accommodating cavity 12 is quickly guided to the water outlet 107 and is then drained through the water outlet 107.

For example, the water outlet 107 may be provided in the middle of the rear wall 146 of the accommodating housing 14, and in the direction y, the bottom wall 144 may be inclined backward and downward from the front wall 125 of the accommodating housing 14. Moreover, in the direction x, the bottom wall 144 may be inclined downward to the middle from the pair of sidewalls 126 of the accommodating housing 14. Therefore, a front part and a rear part of the bottom wall 144 of the accommodating housing 14 are inclined, and a left part and a right part are both inclined toward the water outlet 107 in the middle, so that liquid in the accommodating cavity 12 can quickly accumulate to the water outlet 107 at the lowest point.

In a specific implementation, a wire inlet 128 may be provided on the side wall 126 of the accommodating housing 14 to allow wire harnesses to extend into the accommodating cavity 12 to be connected to the printed circuit board 22.

In a specific implementation, a wiring harness fixing portion 129 may be arranged in the accommodating cavity 12 and/or outside the accommodating housing 14 to fix and gather wire harnesses, so as to prevent loose wire harnesses from affecting mounting and proper operation of other components.

FIG. 11 is a schematic diagram of another refrigeration appliance according to an embodiment of the present invention. Only differences between the embodiment in FIG. 11 and the embodiment in FIG. 1 to FIG. 10 are mainly described herein, and descriptions of the same matters as those in the embodiment described in FIG. 1 to FIG. 10 are omitted.

Specifically, referring to FIG. 11, differences of the refrigeration appliance 1 described in this implementation solution from the refrigeration appliance 1 shown in FIG. 1 to FIG. 10 mainly include that the rear wall 146 of the accommodating housing 14 may protrude backward from the rear end 104a of the upper plate 104 in the front-rear direction (that is, the direction y) of the box body 10.

Furthermore, the back plate 103 may also bulge backward accordingly, and the curvature of the bulge matches the curvature of the backward protrusion of the rear wall 146 of the accommodating housing 14.

Thus, the rear wall 146 of the accommodating housing 14 protrudes backward, and the back plate 103 also bulges backward accordingly, thereby further increasing the volume of the refrigeration appliance 1 by the bulge of the back plate 103.

Furthermore, the rear wall 133 of the top cap 13 may protrude backward accordingly to fit a shape of the rear wall 146 of the accommodating housing 14.

The differences of the refrigeration appliance 1 described in this implementation solution from the refrigeration appliance 1 shown in FIG. 1 to FIG. 10 further include that the positioning hole 145 may be provided on a rear end of the top cap 13.

Although specific implementation solutions have been described above, these implementation solutions are not intended to limit the scope of the present disclosure, even if only one implementation solution is described with respect to specific features. The feature example provided in the present disclosure is intended to be illustrative rather than limiting, unless otherwise stated. In specific implementations, the technical features of one or more dependent claims may be combined with the technical features of the independent claims, and the technical features from the corresponding independent claims may be combined in any appropriate manner, rather than only in the specific combinations listed in the claims.

Although the present invention is described above, the present invention is not thus limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and the scope of the present invention, and therefore the protection scope of the present invention should be subject to the scope defined by the claims.