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Title:
MOVABLE PANEL ASSEMBLY FOR SIDE SUCTION HOOD AND SIDE SUCTION HOOD
Document Type and Number:
WIPO Patent Application WO/2023/202916
Kind Code:
A1
Abstract:
A movable panel assembly for a side suction hood is provided, including a movable panel and an oil collecting groove mounted to a back side of the movable panel. The back side of the movable panel faces a smoke collecting area of the side suction hood, and the oil collecting groove has an open groove body to allow a fluid on the back side of the movable panel to flow into the oil collecting groove. At least one oil drain port is arranged on a bottom of the groove body. The oil drain port has an opening facing the inside of the groove body. A height of the opening in an open state of the movable panel assembly is greater than that in a closed state of the movable panel assembly, to allow the oil collecting groove to collect the fluid in the open state of the movable panel assembly.

Inventors:
ZHU WEIHONG (CN)
ZHU TINGTING (CN)
JIN CHAO (CN)
Application Number:
PCT/EP2023/059467
Publication Date:
October 26, 2023
Filing Date:
April 11, 2023
Export Citation:
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Assignee:
BSH HAUSGERAETE GMBH (DE)
International Classes:
F24C15/20; F24C15/14
Foreign References:
CN111947197A2020-11-17
CN213480317U2021-06-18
CN108240645A2018-07-03
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Claims:
CLAIMS

What is claimed is:

1. A movable panel assembly for a side suction hood, characterized by comprising a movable panel (1) configured to guide smoke and an oil collecting groove (2) mounted to a back side of the movable panel (1), wherein the back side of the movable panel (1) faces a smoke collecting area of the side suction hood; the oil collecting groove (2) has an open groove body (3) to allow a fluid on the back side of the movable panel (1) to flow into the oil collecting groove (2) due to gravity, at least one oil drain port (4) is arranged on a bottom (5) of the groove body (3), and the oil drain port (4) has an opening facing the inside of the groove body (3); and a height of the opening in an open state of the movable panel assembly is greater than a height of the opening in a closed state of the movable panel assembly, to allow the oil collecting groove (2) to collect the fluid in the open state of the movable panel assembly.

2. The movable panel assembly according to claim 1, characterized in that the movable panel (1) is inclined relative to a horizontal plane in the open state.

3. The movable panel assembly according to claim 2, characterized in that the movable panel (1) is perpendicular to the horizontal plane in the closed state or inclined relative to the horizontal plane on a side opposite to a side in the open state with respect to a vertical plane.

4. The movable panel assembly according to any of claims 1 to 3, characterized in that the groove body (3) has a longitudinal body and a bottom (5), the bottom (5) is constructed to be flat or have a comer, the oil collecting groove (2) is mounted to the back side of the movable panel (1) with a longitudinal side wall of the groove body (3), and the at least one oil drain port (4) is directly constructed at the same longitudinal side of the bottom (5) or at the comer of the bottom (5), wherein in the closed state of the movable panel assembly, the fluid in the oil collecting groove (2) is discharged from the oil collecting groove (2) through the oil drain port (4) due to gravity.

5. The movable panel assembly according to claim 4, characterized in that the at least one oil drain port (4) is a punched hole directly constructed at the same longitudinal side of the bottom (5) or at the corner of the bottom (5).

6. The movable panel assembly according to claim 4, characterized in that in the closed state of the movable panel assembly, the opening of the oil drain port (4) facing the inside of the groove body (3) is located at a lowest point inside the groove body (3), and in the open state of the movable panel assembly, an other longitudinal side of the bottom (5) away from the movable panel (1) is located at the lowest point in the groove body (3).

7. The movable panel assembly according to any of claims 1 to 3, characterized in that the oil collecting groove (2) is mounted to a lower side of the back side of the movable panel (1) by bonding.

8. The movable panel assembly according to claim 7, characterized in that the longitudinal side wall connected to the movable panel (1) is connected to the back side of the movable panel (1) in a longitudinal direction at the opening of the oil collecting groove (2), and the longitudinal side wall connected to the movable panel (1) and the movable panel (1) define a non-zero angle; or the longitudinal side wall connected to the movable panel (1) is completely attached to the back side of the movable panel (1).

9. The movable panel assembly according to any of claims 1 to 3, characterized in that the oil collecting groove (2) is further provided with a flow guide plate (6), so that the fluid on the back side of the movable panel (1) is guided into the oil collecting groove (2) by the flow guide plate (6) due to gravity.

10. The movable panel assembly according to claim 9, characterized in that the flow guide plate (6) is constructed to be longitudinal and arranged on a longitudinal side wall at the opening of the groove body (3) in the longitudinal direction, wherein the flow guide plate (6) obliquely points to the bottom (5) of the groove body (3) and defines a non-zero angle with the longitudinal side wall.

11. The movable panel assembly according to claim 10, characterized in that the oil collecting groove (2) is mounted to a lower side of the back side of the movable panel (1) with a longitudinal side wall of the groove body (3), and the longitudinal side wall connected to the movable panel (1) is one of two longitudinal side walls of the groove body (3) with the flow guide plate (6).

12. The movable panel assembly according to claim 10, characterized in that the oil drain port (4) is arranged on one side of the flat bottom (5) of the groove body (3) close to the longitudinal side wall where the flow guide plate (6) is arranged, and the flow guide plate (6) points to an other side of the bottom (5).

13. The movable panel assembly according to any of claims 10 to 12, characterized in that the flow guide plate (6) points to an area in the bottom (5) of the groove body (3) without the oil drain port (4), wherein in the open state of the movable panel assembly, the flow guide plate (6) guides the fluid on the back side of the movable panel (1) to an area in the bottom (5) other than the oil drain port (4), and in the closed state of the movable panel assembly, the flow guide plate (6) guides the fluid on the back side of the movable panel (1) to the area of the groove body (3) without the oil drain port (4) or directly to the oil drain port (4).

14. The movable panel assembly according to any of claims 1 to 3, characterized in that the oil collecting groove (2) is integrally formed by metal plates.

15. The movable panel assembly according to claim 9, characterized in that the oil collecting groove (2) and the flow guide plate (6) are integrally formed by metal plates.

16. Aside suction hood, characterized by comprising a smoke inlet and the movable panel assembly according to any of claims 1 to 15, wherein the movable panel assembly is rotatably mounted at the smoke inlet.

17. The side suction hood according to claim 16, characterized in that the movable panel assembly is inclined relative to a horizontal plane in an open state.

18. The side suction hood according to claim 17, characterized in that the movable panel assembly is perpendicular to the horizontal plane in a closed state or inclined relative to the horizontal plane on a side opposite to a side in the open state with respect to a vertical plane.

Description:
MOVABLE PANEL ASSEMBLY FOR SIDE SUCTION HOOD AND SIDE

SUCTION HOOD

TECHNICAL FIELD

This application relates to the field of side suction hoods, and in particular, to a movable panel assembly for a side suction hood and a side suction hood having the movable panel assembly.

BACKGROUND

At present, there are a variety of side suction hoods on the market, which are also referred to as inclined cooker hoods. The side suction hood is generally provided with a movable panel. The movable panel is opened in the working state of the side suction hood, and forms a smoke collecting area facing the lampblack with the body of the side suction hood to achieve the effect of gathering smoke. On the contrary, in the non-working state of the side suction hood, the movable panel is closed. The movable panel usually forms a part of the surface of the side suction hood in the closed state.

In a case that the movable panel is opened for gathering smoke, because the back side of the movable panel (that is, the side facing the smoke) contacts a large amount of lampblack, droplets are easily formed on the inner surface, especially oil droplets, or water vapor in cooking forms droplets on the back side of the movable panel. These droplets are easy to drip into the pot or the hearth during cooking, and pollute food or contaminate the hearth.

SUMMARY

This application provides a movable panel assembly for a side suction hood and a side suction hood having the movable panel assembly. Through the technical solution provided in this application, the liquid droplets condensed on the back side of the movable panel in the cooking process can be prevented from polluting food or contaminating the hearth in a simple and cost-effective way.

According to a first aspect of this application, a movable panel assembly for a side suction hood is provided. The movable panel assembly includes a movable panel configured to guide smoke and an oil collecting groove mounted to a back side of the movable panel. The back side of the movable panel faces a smoke collecting area of the side suction hood. In the movable panel assembly according to this application, the oil collecting groove has an open groove body to allow a fluid on the back side of the movable panel to flow into the oil collecting groove due to gravity. At least one oil drain port is arranged on a bottom of the groove body. The oil drain port has an opening facing the inside of the groove body. In an open state of the movable panel assembly, a height of the opening of the oil drain port facing the inside of the groove body is greater than a height of the opening in a closed state of the movable panel assembly, so that the oil collecting groove can collect the fluid in the open state of the movable panel assembly.

Herein, "the oil collecting groove can collect the fluid" especially means that in the open state of the movable panel assembly, the fluid flowing into the oil collecting groove from the back side of the movable panel due to gravity cannot flow out of the oil collecting groove through the at least one oil drain port, so that in the open state of the movable panel assembly, the fluid on the back side of the movable panel will not pollute the food in cooking or contaminate the hearth.

In addition, according to the movable panel assembly of this application, the groove body of the oil collecting groove especially has a sufficient depth, so that the fluid collected from the oil collecting groove in the open state of the movable panel assembly, for example, will not exceed the opening of the oil drain port toward the inside of the groove body and overflow through the oil drain port. Herein, reference should be made to an amount of fluid that can condense on the back side of the movable panel under the normal cooking conditions, especially the power of the side suction hood, the size of the movable panel, and the like.

According to the preferred implementation of the movable panel assembly of this application, the movable panel in the movable panel assembly is inclined relative to a horizontal plane in the open state. "Being inclined relative to the horizontal plane in the open state" especially means that a connecting line of a fixed end of the movable panel connected to the side suction hood toward a free end is inclined downward to the ground, and the connecting line and the horizontal plane define an acute angle. In this way, the movable panel and the body of the side suction hood form a smoke collecting area facing the lampblack to achieve the effect of gathering smoke.

According to the preferred implementation of the movable panel assembly of this application, the movable panel in the movable panel assembly is perpendicular to a horizontal plane in the closed state. In other words, the movable panel forms a vertical wall in the closed state of the movable panel assembly, and the vertical wall especially forms a part of an outer surface of the side suction hood.

According to the preferred implementation of the movable panel assembly of this application, the movable panel in the movable panel assembly can also be inclined relative to the horizontal plane in the closed state. Herein, "being inclined relative to the horizontal plane in the closed state" especially means that the movable panel is opposite to a vertical plane as compared with "being inclined relative to the horizontal plane in the open state", that is, the movable panel in the open state and the movable panel in the closed state are located on two sides of the vertical plane.

According to the preferred implementation of the movable panel assembly of this application, the groove body of the oil collecting groove has a longitudinal body and a bottom, where the bottom is constructed to be flat or have a comer. The flat bottom especially means that the bottom is a longitudinal rectangular plane, and the bottom having the comer especially means that the bottom has two longitudinal rectangular planes with the same length. Corresponding long sides of the two rectangular planes are engaged with each other to define an angle especially greater than 90°.

The oil collecting groove is mounted to the back side of the movable panel by a longitudinal side wall of the groove body. The length of the groove body of the oil collecting groove is preferably slightly less than the length of the movable panel. For example, the length of the groove body is 1 cm less than the length of the movable panel, so that the oil collecting groove can basically collect the fluid on the back side of the whole movable panel. In addition, especially, the oil drain ports are directly constructed on the same longitudinal side of the bottom, for example, the oil drain ports are arranged along the same long side of the longitudinal rectangular plane of the flat bottom, or the oil drain port is constructed at the comer of the bottom, for example. In the closed state of the movable panel assembly, the fluid in the oil collecting groove is discharged from the oil collecting groove through the oil drain port due to gravity. Herein, the fluid in the oil collecting groove is discharged from the oil drain port, especially because the opening of the oil drain port toward the inside of the groove body is located at the lower position of the bottom in the closed state of the movable panel assembly. After the fluid is discharged from the oil drain port, the fluid can, for example, drip into an oil cup at a lower side of the side suction hood.

According to the preferred implementation of the movable panel assembly of this application, the at least one oil drain port can be a punched hole directly constructed at the same longitudinal side of the bottom. That is to say, the oil drain port can be cost-effectively and directly arranged on the bottom of the groove body by punching.

According to the preferred implementation of the movable panel assembly of this application, in the closed state of the movable panel assembly, the opening of the oil drain port towards the inside of the groove body is located at the lowest point inside the groove body. For example, the oil drain ports are arranged close to the same long side of the longitudinal rectangular plane of the flat bottom, or the oil drain ports are arranged in a transition portion between the bottom and the side wall of the groove body, that is, across the bottom and the side wall of the groove body. In addition, preferably, the oil drain ports can further be arranged at the corner of the bottom with the corner, that is, across two longitudinal rectangular planes of the bottom with the comer. Furthermore, preferably, in the open state of the movable panel assembly, an other longitudinal side of the bottom away from the movable panel assembly is located at the lowest point inside the groove body, thereby advantageously realizing that the height of the opening of the oil drain port toward the inside of the groove body is greater than the other longitudinal side, so that the oil collecting groove can accumulate fluid in the open state of the movable panel assembly.

It can be seen that during the movement of the movable panel assembly from the open state to the closed state, the lowest point inside the groove body is transferred from the other longitudinal side (that is, the longitudinal side without the oil drain port) to the area with the oil drain port at the bottom of the oil collecting groove, thereby causing the fluid accumulated in the oil collecting groove during the operation of the side suction hood to be discharged through the oil drain port. During the transfer of the lowest point, since the fluid accumulated in the oil collecting groove is usually oil droplets with a slow flow speed and high viscosity, the fluid is generally not discharged from the oil drain port in a case that the movable panel assembly is not completely closed.

According to the preferred implementation of the movable panel assembly of this application, the oil collecting groove is mounted to a lower side of the back side of the movable panel by bonding. The adhesive used for bonding can be an adhesive known to those skilled in the art for bonding household appliances, thereby advantageously reducing the cost.

According to the preferred implementation of the movable panel assembly of this application, the longitudinal side wall of the groove body connected to the movable panel is connected to the movable panel in a longitudinal direction at the opening of the oil collecting groove, and the longitudinal side wall and the movable panel define a non-zero angle. It can be advantageously realized in this way that, for example, in the movable panel perpendicular to the horizontal plane in the closed state of the movable panel assembly, the bottom of the groove body is not parallel to the horizontal plane, so that the opening of the oil drain port towards the inside of the groove body is located at the lowest point inside the groove body.

According to the preferred implementation of the movable panel assembly of this application, the longitudinal side wall connected to the movable panel completely abuts against the back side of the movable panel, which is especially advantageous when the bottom of the oil collecting groove has a comer. In this way, the connection strength between the oil collecting groove and the movable panel can be ensured in a simple way, and in the open state of the movable panel assembly, the height of the opening of the oil drain port facing the inside of the groove body can be greater than the height of the opening in the closed state of the movable panel assembly.

According to the preferred implementation of the movable panel assembly of this application, the oil collecting groove is further provided with a flow guide plate, so that the fluid inside the movable panel is guided into the oil collecting groove by the flow guide plate due to gravity.

According to the preferred implementation of the movable panel assembly of this application, the flow guide plate is constructed to be longitudinal and arranged on the longitudinal side wall on a side of the opening of the groove body in the longitudinal direction, where the flow guide plate obliquely points to the bottom of the groove body and defines a non-zero angle with the longitudinal side wall. For example, the flow guide plate is a longitudinal rectangular plate, and the long side of the rectangular plate has the same length as the groove body of the oil collecting groove. A long side of the rectangular plate is connected to a side wall of the oil collecting groove in the longitudinal direction, and the rectangular plate defines an acute angle with the side wall, for example, an acute angle in a range of 10° to 70°.

According to the preferred implementation of the movable panel assembly of this application, the oil collecting groove is mounted to the lower side of the back side of the movable panel with a longitudinal side wall of the groove body, and the longitudinal side wall connected to the movable panel is one of two longitudinal side walls of the groove body with the flow guide plate. That is to say, in the open state of the movable panel assembly, the fluid on the back side of the movable panel flows downward due to gravity, and first flows to the flow guide plate without contacting the side wall of the groove body of the oil collecting groove, and the fluid drips to the bottom of the oil collecting groove under the guidance of the flow guide plate.

According to the preferred implementation of the movable panel assembly of this application, the oil drain port is arranged on one side of the flat bottom of the groove body close to the longitudinal side wall where the flow guide plate is arranged, and the flow guide plate points to an other side of the bottom. Therefore, it can be realized in a simple way that in the open state of the movable panel assembly, the fluid guided by the flow guide plate leaves the flow guide plate and drips to the other side of the bottom.

According to the preferred implementation of the movable panel assembly of this application, the flow guide plate points to an area in the bottom of the groove body without the oil drain port. In this case, in the open state of the movable panel assembly, the flow guide plate guides the fluid on the back side of the movable panel to an area in the bottom other than the oil drain port. In the closed state of the movable panel assembly, the flow guide plate guides the fluid on the back side of the movable panel to the area of the groove body without the oil drain port or directly to the oil drain port. That is to say, in the open state of the movable panel assembly, it is important that the fluid guided by the flow guide plate does not drip to the oil drain port, but to the area at the bottom of the groove body without the oil drain port. In the closed state of the movable panel assembly, the fluid guided by the flow guide plate can flow to the oil drain port at the bottom of the groove body or to other areas of the groove body, for example, flow to the side wall of the groove body or the area without the oil drain port in the bottom.

According to the preferred implementation of the movable panel assembly of this application, the oil collecting groove is integrally formed by metal plates.

According to the preferred implementation of the movable panel assembly of this application, the oil collecting groove and the flow guide plate are integrally formed by metal plates.

By using the integrated oil collecting groove design scheme of using the metal plate, especially metal plate forming, the oil collecting groove meeting the requirements of this application can be manufactured in a cost-effective manner.

According to a second aspect of this application, a side suction hood is provided. The side suction hood according to this application includes a smoke inlet and the movable panel assembly. The movable panel assembly is rotatably mounted at the smoke inlet. The movable panel assembly is particularly a movable panel assembly having one or a combination of a plurality of features according to the features provided in the above description.

According to the side suction hood of this application, the movable panel assembly is preferably inclined relative to the horizontal plane in the open state after being mounted to the side suction hood.

According to the side suction hood of this application, preferably, the movable panel assembly is perpendicular to the horizontal plane in the closed state or inclined relative to the horizontal plane on a side opposite to a side in the open state with respect to a vertical plane. BRIEF DESCRIPTION OF THE DRAWINGS

The principles, features, and advantages of this application can be better understood by describing this application in more detail below with reference to the accompanying drawings. The accompanying drawings include:

FIG. la to FIG. 1c schematically show a first embodiment of a movable panel assembly according to this application.

FIG. 2a to FIG. 2c schematically show a second embodiment of a movable panel assembly according to this application.

DETAILED DESCRIPTION

In order to make the technical problems, technical solutions, and beneficial technical effects to be solved in this application clearer, this application is to be further described in detail below with reference to the accompanying drawings and a plurality of exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain this application, but not to limit the protection scope of this application.

It should be first noted that the directional terms used herein refer to the conventional use state of the side suction hood, for the convenience of description, but cannot be understood as the absolute limitation on the corresponding features.

FIG. la to FIG. 1c show side views of a movable panel assembly according to a first embodiment of this application. The movable panel assembly has a movable panel 1 configured to guide smoke and an oil collecting groove 2 mounted to the back side of the movable panel 1. The oil collecting groove 2 has an open groove body 3. At least one oil drain port 4 is arranged on a bottom 5 of the groove body 3. The oil drain port 4 has an opening facing the inside of the groove body 3. The oil drain port 4 can be cost-effectively and directly arranged on the bottom 5 of the groove body 3 by punching. The length of the groove body 3 of the oil collecting groove is slightly less than the length of the movable panel 1 (not shown in FIG. la to FIG. 1c), so that the oil collecting groove can basically collect the fluid on the back side of the whole movable panel.

In FIG. la to FIG. 1c, the groove body 3 has a flat bottom 5. The bottom 5 is an elongated rectangular plane. Only a cross section of the bottom 5 is shown in FIG. la to FIG. 1c. The oil drain port 4 in the bottom 5 is arranged in a transition portion between the bottom 5 and the side wall of the groove body 3 close to the movable panel 1, that is, across the bottom of the groove body and the side wall close to the movable panel 1. In the first embodiment shown in FIG. la to FIG. 1c, the groove body 3 is integrally constructed with the flow guide plate 6, and a connecting portion between the groove body 3 and the flow guide plate 6 is also a connecting portion between the oil collecting groove 2 and the movable panel la. The flow guide plate 6 is connected to a longitudinal side wall of the groove body 3 at the opening of the groove body 3, and the longitudinal side wall defines a non-zero angle with the movable panel 1, especially an acute angle in FIG. la to FIG. 1c. It is realized in this way that in the closed state of the movable panel assembly, the bottom 5 of the groove body 3 is not parallel to the horizontal plane, so that the opening of the oil drain port 4 towards the inside of the groove body 3 is located at the lowest point of the oil collecting groove 2.

In the first embodiment shown in FIG. la to FIG. 1c, the oil collecting groove 2 is arranged on the back side of the movable panel 1 by bonding, for example. The flow guide plate 6 obliquely points downward to the bottom 5 of the groove body 3 and defines a non-zero angle with the longitudinal side wall contacting the movable panel 1, for example, an acute angle of 10° to 70°, and the flow guide plate 6 points to the area in the bottom 5 without the oil drain port 4. The flow guide plate 6 is a longitudinal rectangular plate, and the long side of the rectangular plate has the same length as the groove body 3 of the oil collecting groove 2. In the open state of the movable panel assembly, the fluid on the back side of the movable panel 1 flows downward due to gravity, and first flows to the flow guide plate 6 without contacting the side wall of the groove body 3 of the oil collecting groove 2, and the fluid drips to the bottom 5 of the oil collecting groove under the guidance of the flow guide plate 6.

FIG. 1c shows the open state of the movable panel assembly. In the open state of the movable panel shown in FIG. 1c, the height of the opening of the oil drain port 4 toward the inside of the groove body is greater than the height of the opening in the closed state of the movable panel assembly, or the opening is higher than the side of the bottom 5 of the groove body 3 away from the movable panel 1 in the open state of the movable panel assembly. It can be seen from FIG. 1c that the fluid condensed on the back side of the movable panel 1, especially oil and water, can flow into the groove body 3 along the flow guide plate 6 due to gravity, and accumulate at the corner formed by the bottom 5 and the side wall away from the movable panel 1 in the groove body 3. Since the oil drain port 4 is located at a higher position towards the opening inside the groove body, the fluid flowing into the oil collecting groove 2 from the back side of the movable panel 1 due to gravity cannot flow out of the oil collecting groove 2 through the oil drain port 4, so that in the open state of the movable panel assembly, the fluid on the back side of the movable panel 1 will not pollute the food in cooking or contaminate the hearth.

FIG. la and FIG. lb respectively show two closed states of the movable panel assembly. The movable panel 1 is perpendicular to the horizontal plane in the closed state of the movable panel assembly shown in FIG. la. In other words, the movable panel 1 forms a vertical wall in the closed state. The vertical wall is flush with and engaged with the body 7 of the side suction hood, forming a part of the outer surface of the side suction hood. In addition, in the closed state of the movable panel assembly shown in FIG. lb, the movable panel 1 is inclined relative to a horizontal plane. The inclined state is opposite to a vertical plane compared with the movable panel 1 in the open state in FIG. 1c, that is, the movable panel 1 in FIG. 1c and the movable panel 1 in FIG. lb are located on two sides of the vertical plane. The movable panel 1 of the movable panel assembly shown in FIG. lb is flush with and engaged with the body 7 of the side suction hood, forming a part of the outer surface of the side suction hood.

It can be seen from FIG. la and FIG. lb that in the closed state of the movable panel assembly, the opening of the oil drain port 4 toward the inside of the groove body 3 is located at the lowest point inside the groove body 3, so that the fluid in the oil collecting groove 2 is discharged from the oil collecting groove 2 through the oil drain port 4 due to gravity. It can be seen from FIG. la and FIG. lb that the fluid is discharged from the oil drain port 4 and can be guided into an oil cup (not shown) at the lower side of the side suction hood via the back side of the body 7.

FIG. 2a to FIG. 2c schematically show side views of a second embodiment of a movable panel assembly according to this application. The movable panel assembly in FIG. 2a to FIG. 2c basically corresponds to the movable panel assembly in FIG. la to FIG. 1c. Therefore, the same elements or elements with the same function are given the same reference numerals.

In FIG. 2a to FIG. 2c, FIG. 2a and FIG. 2b respectively show two closed states of the movable panel assembly. The two closed states respectively correspond to FIG. la and FIG. lb. In the closed state of the movable panel assembly shown in FIG. 2a, the movable panel 1 is perpendicular to the horizontal plane. The movable panel 1 forms a vertical wall in the closed state, and the vertical wall is flush with and engaged with the body 7 of the side suction hood to form a part of the outer surface of the side suction hood. In addition, in the closed state of the movable panel assembly shown in FIG. 2b, the movable panel 1 is inclined relative to a horizontal plane. The inclined state is opposite to a vertical plane compared with the movable panel 1 in the open state in FIG. 2c, that is, the movable panel 1 in FIG. 2c and the movable panel 1 in FIG. 2b are located on two sides of the vertical plane. The movable panel 1 of the movable panel assembly shown in FIG. 2b is flush with and engaged with the body 7 of the side suction hood, forming a part of the outer surface of the side suction hood.

FIG. 2c shows the open state of the movable panel assembly. In the open state of the movable panel shown in FIG. 2c, the height of the opening of the oil drain port 4 toward the inside of the groove body is greater than the height of the opening in the closed state of the movable panel assembly, or the opening is higher than the side of the bottom 5 of the groove body 3 away from the movable panel 1 in the open state of the movable panel assembly. It can be seen from FIG. 2c that the fluid condensed on the back side of the movable panel 1, especially oil and water, can flow into the groove body 3 along the flow guide plate 6 due to gravity, and accumulate at the comer formed by the bottom 5 and the side wall away from the movable panel 1 in the groove body 3. This is because the other longitudinal side of the bottom 5 away from the movable panel 1 is located at the lowest point inside the groove body 3. Since the oil drain port 4 is located at a higher position towards the opening inside the groove body, the fluid flowing into the oil collecting groove 2 from the back side of the movable panel 1 due to gravity cannot flow out of the oil collecting groove 2 through the oil drain port 4, so that in the open state of the movable panel assembly, the fluid on the back side of the movable panel 1 will not pollute the food in cooking or contaminate the hearth.

Compared with FIG. la to FIG. 1c, the movable panel assembly in FIG. 2a to FIG. 2c is different in that the bottom 5 is constructed to have a comer. The bottom 5 having the corner has two rectangular planes with the same length. It can be seen from FIG. 2a to FIG. 2c, corresponding long sides of the two rectangular planes are engaged with each other to define an angle especially greater than 90°. The oil drain port 4 is constructed at the corner of the bottom 5, that is, arranged across two longitudinal rectangular planes of the bottom 5 with the corner.

Due to the configuration of the bottom 5 and the oil drain port 4 in FIG. 2a to FIG. 2c, the longitudinal side wall of the groove body 3 connected to the movable panel 1 completely abuts against the back side of the movable panel 1. In this way, the connection strength between the oil collecting groove 2 and the movable panel 1 can be ensured in a simple way, and in the open state of the movable panel assembly (FIG. 2c), the height opening of the oil drain port 4 facing the inside of the groove body 3 can be greater than the height of the opening in the closed state of the movable panel assembly, or the opening is higher than the side of the bottom 5 of the groove body 3 away from the movable panel 1 in the open state of the movable panel assembly.

Although specific implementations have been described above, these implementations are not intended to limit the scope disclosed in this application, even if only a single implementation is described with respect to specific features. The feature examples provided in this application are intended to be illustrative rather than restrictive, unless otherwise stated. During specific implementation, a number of features can be combined with each other according to the actual needs when technically feasible. Without departing from the spirit and scope of this application, various alternatives, changes, and modifications can also be conceived.