TECHNICAL FIELD

The invention relates to an oven comprising an electronic apparatus that provides lighting control, which allows the illumination element located in the cooking chamber to be turned on and off according to the position of the cover.

PRIOR ART

In the literature, an oven is defined as a device that uses energy sources to cook, melt, reheat, or dry a substance within a closed area. There are many types of ovens, ranging from those used for cooking food to those used in the industry. There are various types of ovens, such as sterilization ovens, domestic ovens, ceramic ovens, coal production ovens, blast furnaces, industrial kitchen ovens, bread ovens, etc. In the literature, it is stated that for ovens used in homes, there is a need for lighting during cooking to enable the interior of the oven to be seen. Halogen or LED lamps are commonly used for lighting. Halogen lamps are mostly driven with the help of a relay in many applications. When operations such as dimming or delayed opening are desired in addition to the on-off function, there is a need for analog components and manual control.

EP1299678 relates to an oven comprising illumination for a cooking compartment. Said illumination is continuously reduced by a dimmer device of a control unit, not in an immediate manner, but over a period of time in which the user optically perceives the weakening illumination. In a preferred embodiment, the light intensity is also continuously increased upon switching on the cooking compartment illumination.

BRIEF DESCRIPTION OF THE INVENTION

The object of the invention is to develop an oven in which the illumination element located in the cooking chamber gradually transitions to the on mode by increasing the light intensity, or to the off mode by gradually decreasing the light intensity, through the activation of a predetermined algorithm via an electronic apparatus that receives feedback from the cover when it is opened or closed. In order to achieve the aforementioned objective, the invention comprises an oven comprising a housing; a cooking chamber located within a cavity of the housing; an illumination element located on a free wall of the cooking chamber and providing an on mode or off mode of the illumination; a cover mounted on the housing to open and close access to the cooking chamber; an electronic apparatus that provided such that drive the illumination element to transition from the off mode to the on mode when the cover is opened by activating the algorithm providing lighting control and the illumination element to transition from the on mode to the off mode when the cover is closed by activating the algorithm providing lighting control. The oven further comprises a sensing unit that receives feedback from the cover in a first state when a power input provided to the electronic apparatus; a controller that provides sensing state transmission when the sensing unit receives feedback from the cover; and a driver configured such that based on the door position, activates an algorithm to reduce the light intensity of the lighting element in predetermined periods when transitioning from open mode to closed mode or increase the light intensity in predetermined periods when transitioning from closed mode to open mode, and in a second condition, without the controller involved, the driver unit provides the open and closed modes of the lighting element by increasing and decreasing its light intensity in predetermined periods based on the door position. As a result, the lighting element transitions to the open mode by gradually increasing its light intensity or transitions to the closed mode by gradually decreasing its light intensity, both for the active working condition of the controller through the electronic apparatus and for the condition where the controller is not in operation.

In a preferred embodiment of the invention, the power input is electrically connected to the electronic apparatus and adjusted to provide phase transmission. In this way, the electronic apparatus maintains its working condition.

In a preferred embodiment of the invention, the illumination element is a light-emitting diode providing illumination. As a result, the lighting element becomes a low-energy consuming, long-lasting, robust, and compact circuit component, enabling the rapid opening and closing of the lighting element. Furthermore, the periods in which the light intensity of the lighting element is decreased or increased can be in milliseconds.

A preferred embodiment of the invention the driver unit comprises a controlled semiconductor switching element that is electrically connected and provides suppression of the power input and increase of the attenuated power input. As a result, the suppression of the phase coming from the power input and the increase of the suppressed power can be achieved with the help of a switching element. In this case, the switching element is a thyristor. A preferred embodiment of the invention the sensing unit is a sensor that operates to detect the cover position when the power input is received and is connected to the electronic apparatus. As a result, the detection of the door position with the arrival of the phase can be accomplished through the sensor.

A preferred embodiment of the invention is the controller is a microprocessor connected to the electronic apparatus and operates in the first state to activate the predetermined algorithm. As a result, the algorithm can be loaded onto the microprocessor, allowing for the possibility of changing the algorithm architecture when desired and ensuring that the controller can operate in a desired first state.

A preferred embodiment of the invention the electronic apparatus is configured to be connected to a neutral line that creates a potential difference with the phase from the power input and allows current to pass through the circuit. This allows for the flow of current to be provided on the electronic device and ensures that the circuit is in operational state.

BRIEF DESCRIPTION OF THE FIGURES

Figure 1 is a schematic illustration of an oven.

Figure 2 is a schematic representation of a cooking chamber.

Figure 3 is a schematic illustration of an electronic apparatus circuit.

Figure 4 is a schematic illustration of an electronic apparatus circuit connection.

Figure 5 is a flowchart illustration of an operating state of the electronic apparatus for an oven of the invention.

Figure 6 is a graphical representation of an operating state of the electronic apparatus for an oven of the invention.

DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, the subject matter of the invention is explained without any limitation and only with references to examples for better understanding. Figure 1 schematically shows an oven. Figure 2 schematically shows a cooking chamber. Figure 3 schematically shows an electronic apparatus circuit. Figure 4 schematically shows an electronic apparatus circuit connection. Figure 5 shows a flowchart of a working state of the electronic apparatus related to the subject matter of the invention. A housing (11) surrounds an oven (10). There is a cooking chamber (12) within a cavity of the housing (11 ). On a free wall of the cooking chamber (12), for example, on an upper wall of the cooking chamber (12), there is an illumination element (20). The illumination element (20) provides an open mode or closed mode of illumination (22) (26). On a front face of the oven housing (11 ), there is a hinged cover (14). The cover (14) provides an opening state and a closing state (16)(18) for opening and closing the access opening of the cooking chamber (12). In the opening state (16) or closing state (18) of the cover (14), illumination control (44) is provided through an electronic apparatus (30). The algorithm is activated (52) to provide illumination control (44). With the activation of the algorithm (52), the transition of the illumination element (20) from closed mode to open mode (28) is provided. In addition, in the closing state (18) of the cover (14), the illumination element (20) transitions from open mode to closed mode (24) by activating the predetermined algorithm (52) through the electronic apparatus (30). The electronic apparatus (30) receives feedback (32) from the cover (14) in the opening state (16). With the receipt of feedback (32), the light intensity of the illumination element (20) is gradually increased at predetermined intervals (46), and the transition of the illumination element (20) from closed mode to open mode (28) is made (28). In the opposite case, that is, in the closing state (18) of the electronic apparatus (30), by receiving feedback (32) from the cover (14), the light intensity of the illumination element (20) is gradually reduced (48) and the transition of the illumination element (20) from open mode to closed mode (24) is provided. To provide illumination control (44), the electronic apparatus (30) includes a power input (56) that provides phase transmission and is electrically connected, a neutral line (37) to prevent short circuit, a gate detection unit (38) that receives feedback (32) from the cover when power input is received (56) and detects the opening or closing state of the cover (14) (58) (60), a controller (40) that activates the algorithm (52) only in a first state (68) for providing illumination control (44) and to which the cover state detection is transmitted (62), and a driver unit (42) that suppresses and attenuates the power input (34) in the first state (68) and the second state (70) (64) or increases the suppressed power input (66). The sensing unit (38) is a sensing sensor, the controller (40) is a microprocessor, and the driver unit (42) is a driver circuit. In the subject matter of the invention, the working mode of the electronic apparatus (30) in a first state (68) when the oven cover is closed (18) is as follows;

The power input is received when the cover is in the closing state (18) (56), • Detection of the closing status of the cover in the sensing unit (38) and transmitting it to the controller (62),

• The controller (40) activates the algorithm (52) to enable the lighting element (20) to switch from the on mode to the off mode (24),

• By suppressing the power input (34) of the driver unit (42) at predetermined periods (64), the lighting element (20) is damped (48) by reducing the light intensity, thus providing the lighting control (44).

In the invention subject oven, the operation of the electronic device (30) in the second state (70) when the oven door is closed (18) is as follows:

• When the door is closed (18), the power input comes in (56),

• The door's closed state is detected in the sensing unit (38) and transmitted to the driver unit (42),

• The driver unit (42) suppresses the power input (34) in predetermined periods, reducing the light intensity of the lighting element (20) and dimming it (48), thus providing lighting control (44).

In the invention subject oven, the operation of the electronic device (30) in the first state (68) when the oven door is opened (18) is as follows:

• When the door is opened (16), the power input comes in (46),

• The sensing unit (38) detects the open state of the door (14) and transmits the door state detection to the controller (40),

• The controller (40) activates the algorithm (52) to switch the lighting element (20) from the closed mode to the open mode (28),

• The driver unit (42) increases the dimmed power input (34) in predetermined periods and transmits it to the lighting element (20), thus providing lighting control (44).

In the invention subject oven, the operation of the electronic device (30) in the second state (70) when the oven door is opened (18) is as follows:

• When the door is opened (16), the power input comes in (46),

• The sensing unit (38) detects (58) the open state of the door (14) and transmits the door state detection (62) to the driver unit (42),

• The driver unit (42) increases the dimmed power input (34) in predetermined periods and transmits it to the lighting element (20), thus providing lighting control (44). In the electronic device (30), the controlled semiconductor switching element (54) electrically connected to the driver unit (42) helps suppress the power input (34) and increase the dimmed power input (64) (66).

Figure 6 graphically shows the operating state of the electronic device related to the invention subject oven. Here, the power input suppression (pulse) or the increase of the suppressed power input (64) (66) in certain periods is indicated. Additionally, the n-number of pulses (64) changes the dimming speed of the lamp. The calculation equation for the given n number and related explanations are as follows:

D — TyotalDimmingTime / Toimming

• T _T otaiDimmingTim _e : Total dimming time

• Toimming: Cycle time

As an example of the operation mode of the electronic device (30) providing lighting control in the invention subject oven:

After closing the oven door (14) (18), the lamp (20) inside the oven (10) dims slowly over a period of 4.5 seconds,

The Toimming period is given as 300ms,

Assuming the grid frequency is 50Hz,

Approximately, there are 15 sine waves in 300ms when driving the lamp (20) (44),

If we eliminate one sine wave in each 300ms period, the light will be completely off after 4.5 seconds when the oven door (14) is closed (50).

REFERENCE NUMBERS

10 Oven 40 Controller

11 Housing 42 Driver unit

12 Cooking chamber 44 Lighting control

14 Door 46 Increasing light intensity

16 Door opening state 48 Reducing light intensity

18 Door closing state 50 Light intensity damping

20 Lighting element 52 Activation of the algorithm

22 Open mode 54 Switching element

24 Transition open mode to closed mode 56 Power input arrival

26 Closed mode 58 Detection of opening state Transition closed mode to open mode 60 Detection of closing state Electronic device 62 Transmission of detection state Feedback reception 64 Suppressing power input Power input 66 Increasing suppressed power input Phase transmission 68 First condition Neutral line 70 Second consdition Sensing unit