Cooking apparatus

Abstract

A cooking apparatus of the present invention comprises: a main body having a cooking chamber provided therein; a door which is provided on the main body and opens or closes the cooking chamber; a first rail portion provided in the main body; a second rail portion which is provided on the door and is slidably coupled to a guide slot of the first rail portion; a driving assembly which applies moving force to the second rail portion; and a controller which controls the driving assembly in response to the opening and closing of the door. The second rail portion of the cooking apparatus according to an aspect comprises a saw tooth member which comprises a plurality of first saw teeth provided in a first direction, and a plurality of second saw teeth provided in a second direction perpendicular to the first direction. The driving assembly of the cooking apparatus according to an aspect comprises at least one gear which applies the moving force to the saw tooth member so as to allow the second rail portion to move in the first direction and the second direction, and a driving motor which applies rotational force to the at least one gear.

Description

Cooking appliances

[0001] The disclosed invention relates to a cooking appliance for automatically opening and closing a door.

[0002] Cooking appliances are devices that heat food for cooking, and they are broadly classified into methods that generate heat using electricity and methods that generate heat by burning gas. For example, cooking appliances can be categorized into gas ranges, ovens, induction heaters, halogen heaters, and microwave ovens.

[0003] Recently, microwave ovens are installed on the upper part of a room wall, while other cooking appliances (e.g., gas ranges, ovens, induction heaters, halogen heaters, etc.) are installed below the microwave oven on the room floor. In this case, a hood may be provided below the microwave oven to vent air containing smoke or odors to the outside. A microwave oven equipped with such a hood is called an Over The Range (OTR).

[0004] Conventional microwave ovens with built-in hoods had a problem in that users could not easily open and close the door because they were installed at the top of the wall.

[0005] One aspect of the disclosed invention provides a cooking appliance in which a door is automatically slid by means of a rail assembly and a driving assembly.

[0006] Another aspect of the disclosed invention provides a cooking appliance that allows a door to be manually opened or closed by a limiter based on the magnitude of the force applied to the door being greater than or equal to a reference size.

[0007] Another aspect of the disclosed invention provides a cooking device that recognizes a failure of a sensor or drive motor based on the open / closed state of the door and the position information of the door, and provides guidance on the recognized failure information.

[0008] A cooking device according to one aspect comprises: a main body having a cooking chamber; a door provided on the main body for opening or closing the cooking chamber; a first rail portion provided on the main body; a second rail portion provided on the door and slidably connected to a guide hole of the first rail portion; a driving assembly for applying a moving force to the second rail portion; and a control unit for controlling the driving assembly in response to the opening and closing of the door. The second rail portion of the cooking device according to one aspect comprises a gear member comprising a plurality of first teeth provided in a first direction and a plurality of second teeth provided in a second direction perpendicular to the first direction. The driving assembly of the cooking device according to one aspect comprises at least one gear that applies a moving force to the gear member so that the second rail portion moves in a first direction and a second direction, and a driving motor that applies a rotational force to the at least one gear.

[0009] A control unit of a cooking appliance according to one aspect controls the drive motor to rotate by a reference angle in a first rotational direction in response to the opening of the door, and controls the drive motor to rotate by a reference angle in a second rotational direction in response to the closing of the door.

[0010] According to one aspect, the first tooth among a plurality of second teeth of a plurality of first teeth of a tooth member of a cooking device may be connected to the last tooth among a plurality of first teeth of a tooth member. A second rail part of a cooking device according to one aspect moves in a first direction by a moving force applied to a plurality of first teeth in response to the opening of a door, and then moves in a second direction by a moving force applied to a plurality of second teeth. A second rail part of a cooking device according to one aspect moves in a second direction by a moving force applied to a plurality of second teeth in response to the closing of a door, and then moves in a first direction by a moving force applied to a plurality of first teeth.

[0011] According to one aspect, the first direction of the cooking device is a direction corresponding to the front and rear of the main body, and the second direction is a direction corresponding to the upper and lower sides of the main body.

[0012] A first rail portion of a cooking device according to one aspect includes a first body, a first guide hole provided in the first body, and a first guide pin provided in the first body. A second rail portion of a cooking device according to one aspect includes a second body, a second guide hole provided in the second body and sliding along a first guide pin of the first rail portion, and a second guide pin provided in the second body and sliding along a first guide hole of the first rail portion.

[0013] A first guide hole in a first rail portion of a cooking appliance according to one aspect includes a first bending hole provided in a first direction and a first straight hole provided in a second direction connected to the first bending hole. A second guide hole in a second rail portion of a cooking appliance according to one aspect includes a second bending hole provided in a first direction and a second straight hole provided in a second direction connected to the second bending hole.

[0014] A plurality of first teeth of a cooking device according to one aspect may be provided at a position corresponding to a second bending hole. A plurality of second teeth of a cooking device according to one aspect may be provided at a position corresponding to a second straight hole.

[0015] A driving assembly of a cooking device according to one aspect further includes a rail gear connected to a toothed member of a second rail portion, a driving gear connected to the rail gear, and a gearbox that transmits the rotational force of a driving motor to the driving gear.

[0016] A cooking appliance according to one aspect further includes a limiter that disconnects the connection between the driving motor and the second rail section based on the application of a force greater than a reference size to the door, and connects the driving motor and the second rail section based on the removal of the applied force greater than the reference size.

[0017] A cooking device according to one aspect further comprises an interlock assembly including a door pin provided in a door and withdrawn from a main body in response to the opening of the door and inserted into a main body in response to the closing of the door, a cam that rotates by the insertion or withdrawal of the door pin, a first sensor provided in a main body that detects the open state of the door based on the rotation of the cam, and a second sensor provided in a main body that detects the closed state of the door based on the rotation of the cam.

[0018] The second rail portion of the cooking device according to one side moves by a first reference distance corresponding to the length of the door pin when moving in the first direction.

[0019] A cooking device according to one aspect includes a magnetron that generates microwaves.

[0020] A cooking device according to one aspect further includes an input unit. A control unit of a cooking device according to one aspect controls a magnetron to stop based on receiving a door opening signal from a first sensor or receiving a door opening command through the input unit.

[0021] A cooking appliance according to one aspect further includes an input unit and a display unit. A control unit of a cooking appliance according to one aspect controls the rotation of a driving motor to stop the rotation of the driving motor and outputs guidance information regarding the overload condition based on the fact that the load condition of the driving motor is recognized as an overload condition while controlling the rotation of the driving motor for opening or closing a door.

[0022] A control unit of a cooking appliance according to one aspect controls the rotation of a drive motor based on the fact that the stop time of the drive motor reaches a reference time.

[0023] A control unit of a cooking appliance according to one aspect recognizes the door as being in an open state or a door as being in a closed state based on the rotation angle of the drive motor reaching a reference rotation angle.

[0024] A control unit of a cooking appliance according to one aspect recognizes whether a closing signal is received from a second sensor based on the completion of closing the door, and recognizes the second sensor as normal based on the reception of the closing signal from the second sensor.

[0025] A control unit of a cooking appliance according to one aspect controls a display unit to output guidance information requesting input regarding the door state based on the fact that a closing signal is not received from a second sensor, recognizes a failure of the second sensor based on the fact that the door closing state is received through an input unit, recognizes a failure of the drive motor based on the fact that the door opening state is received through an input unit, and controls the display unit to output guidance information regarding the failure of the second sensor or the drive motor.

[0026] A control unit of a cooking appliance according to one aspect recognizes whether an opening signal is received from a first sensor based on the completion of the door opening, and recognizes the first sensor as faulty based on the fact that an opening signal is not received from the first sensor, and controls a display unit to output guidance information regarding the fault of the first sensor.

[0027] A control unit of a cooking appliance according to one aspect controls a display unit to output guidance information requesting input regarding the door state based on receiving an opening signal from a first sensor, recognizes the first sensor as normal based on receiving the door opening completion state through an input unit, recognizes the drive motor as faulty based on receiving the door partially open state through an input unit, and controls the display unit to output guidance information regarding the drive motor failure.

[0028] According to the disclosed invention, the door of a cooking appliance can be easily opened and closed by using a rail assembly and a drive assembly of the cooking appliance to automatically open and close the door of the cooking appliance, thereby improving user convenience.

[0029] The disclosed invention can minimize the size of the area where a cooking appliance is installed and used by sliding the door of the cooking appliance up and down to open or close the door. In addition, the disclosed invention can prevent collision accidents between the door and the user because it minimizes the travel distance of the cooking appliance door toward the direction where the user is located (i.e., the front of the cooking appliance).

[0030] The disclosed invention can prevent failure of the drive assembly of a cooking appliance by using a limiter to separate the drive assembly and the rail assembly when human power by a user acts on the door of the cooking appliance, and can allow the user to manually open or close the door of the cooking appliance, thereby improving user satisfaction.

[0031] The disclosed invention can improve safety regarding the movement of the door and maintain a sense of balance regarding the movement of the door by applying a moving force to the door from both sides using a rail assembly, thereby preventing the door from failing.

[0032] The disclosed invention can easily recognize the cause of a failure by recognizing a failure of a sensor or a failure of a drive motor based on an overload applied to a drive motor and the open / closed state of a door, and by outputting guidance information regarding the failure. It can also easily repair a failure of a cooking appliance.

[0033] The disclosed invention can improve the marketability of a cooking appliance equipped with an exhaust device and further secure the competitiveness of the cooking appliance equipped with an exhaust device.

[0034] FIG. 1 is a configuration diagram of a cooking system including a cooking appliance according to an embodiment of the present disclosure.

[0035] FIG. 2 is a perspective view of a cooking appliance according to an embodiment of the present disclosure.

[0036] FIG. 3 is an example diagram of the opening of a door of a cooking appliance according to an embodiment of the present disclosure.

[0037] FIG. 4 is an exemplary diagram of a first rail portion provided in the main body of a cooking appliance according to an embodiment of the present disclosure.

[0038] FIG. 5 is an exemplary diagram of a second rail portion provided on the door of a cooking appliance according to an embodiment of the present disclosure.

[0039] FIG. 6 is an example diagram of the combination of the first and second rail sections of a cooking appliance according to an embodiment of the present disclosure.

[0040] FIG. 7 is an example diagram of the movement of the first and second rail sections of a cooking appliance according to an embodiment of the present disclosure.

[0041] FIG. 8 is an exemplary diagram of a driving assembly of a cooking appliance according to an embodiment of the present disclosure.

[0042] FIGS. 9a, FIGS. 9b, FIGS. 9c and FIGS. 9d are exemplary diagrams of the operation of a rail assembly and a driving assembly of a cooking appliance according to an embodiment of the present disclosure.

[0043] FIGS. 10a and FIGS. 10b are configuration diagrams of an interlock assembly of a cooking appliance according to an embodiment of the present disclosure.

[0044] FIGS. 11a, FIGS. 11b, and FIGS. 11c are exemplary diagrams of the operation of an interlock assembly of a cooking appliance according to an embodiment of the present disclosure.

[0045] FIG. 12 is a modified example of a driving assembly of a cooking appliance according to an embodiment of the present disclosure.

[0046] FIG. 13 is a control configuration diagram of a cooking appliance according to an embodiment of the present disclosure.

[0047] FIG. 14 is a flowchart of the door opening control sequence of a cooking appliance according to an embodiment of the present disclosure.

[0048] FIG. 15 is a flowchart of the door closing control flowchart of a cooking appliance according to an embodiment of the present disclosure.

[0049] The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said embodiments.

[0050] In relation to the description of the drawings, similar reference numerals may be used for similar or related components.

[0051] The singular form of the noun corresponding to an item may include one or plural items, unless the relevant context clearly indicates otherwise.

[0052] In this document, each of the phrases such as "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "at least one of A, B, or C" may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof.

[0053] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish a component from another component and do not limit the components in other aspects (e.g., importance or order).

[0054] Where any (e.g., 1st) component is referred to as "coupled" or "connected" to another (e.g., 2nd) component, with or without the terms "functionally" or "communicationly," it means that the component may be connected to the other component directly (e.g., via a wire), wirelessly, or through a third component.

[0055] Terms such as “include” or “have” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in this document, and do not preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0056] When it is said that a component is "connected," "combined," "supported," or "in contact" with another component, this includes not only cases where the components are directly connected, combined, supported, or in contact, but also cases where they are indirectly connected, combined, supported, or in contact through a third component.

[0057] When it is said that a component is located "on" another component, this includes not only cases where one component is in contact with the other, but also cases where another component exists between the two components.

[0058] The term “and / or” includes a combination of multiple related described components or any of the multiple related described components.

[0059] The operating principle and embodiments of the present invention will be described below with reference to the attached drawings.

[0060] FIG. 1 is a configuration diagram of a cooking system including a cooking appliance according to an embodiment of the present disclosure. The cooking appliance of the present embodiment may be a first cooking appliance.

[0061] The cooking system may include an exhaust device (1), a first cooking device (2), and a second cooking device (3).

[0062] An exhaust device (1) may be provided in the cooking area of ​​the room. The exhaust device (1) may be provided adjacent to the wall of the cooking area of ​​the room but separated from the floor surface of the room. The exhaust device (1) may be provided in the middle area of ​​the wall provided in the cooking area of ​​the room.

[0063] An exhaust device (1) may be provided in the first cooking device (2). An exhaust device (1) may be provided at the bottom of the first cooking device (2). An exhaust device (1) may be fixedly provided in the first cooking device (2).

[0064] The exhaust device (1) inhales smoke and odors generated during the cooking of food through the second cooking device (3) and discharges the inhaled smoke and odors to the outside. Hereinafter, smoke and odors will be referred to as 'contaminated air'.

[0065] The exhaust device (1) may be provided on the upper part of the second cooking device (3). The exhaust device (1) may be positioned at a certain distance from the second cooking device (3).

[0066] The exhaust device (1) can inhale contaminated air located at the bottom of the exhaust device (1). The contaminated air located at the bottom of the exhaust device (1) may be air located between the exhaust device (1) and the second cooking appliance (3). The contaminated air located at the bottom of the exhaust device (1) may be air generated during the operation of the second cooking appliance (3).

[0067] The exhaust device (1) is a device that sucks in contaminated air present in at least one space and discharges the sucked-in air to the outside, and may be the same device as an intake device or a ventilation device. In this embodiment, it will be described as an exhaust device.

[0068] The first cooking appliance (2) is a cooking appliance of the present disclosure and may be provided in the cooking area of ​​a room. The first cooking appliance (2) may be provided adjacent to the wall of the cooking area of ​​the room, but separated from the floor surface of the room. The first cooking appliance (2) may be provided in the middle area of ​​the wall provided in the cooking area of ​​the room.

[0069] The first cooking device (2) may include an exhaust device (1). The exhaust device (1) may be fixedly installed at the bottom of the first cooking device (2).

[0070] The first cooking device (2) may include a magnetron that generates microwaves. In this case, the first cooking device (2) can cook food by utilizing frictional heat resulting from the translational motion of water molecules contained in the food by irradiating the food with microwaves generated from the magnetron.

[0071] The first cooking appliance (2) may be a microwave oven.

[0072] The first cooking device (2) may include a high voltage transformer (HVT), a high voltage diode, and a high voltage capacitor to provide high voltage to the magnetron.

[0073] A high-voltage transformer receives AC power from an external source and transforms it into high voltage. It includes a primary coil that receives AC power and a secondary coil that transforms it into high voltage, and may further include a filament coil that transforms the input AC power into low voltage.

[0074] The first cooking device (2) may include one or more heaters, and may further include a steam generating unit that generates steam.

[0075] The second cooking device (3) may be provided in the cooking area of ​​the room. The second cooking device (3) may be provided adjacent to the wall of the cooking area of ​​the room, but fixed to the floor surface of the room. The second cooking device (3) may be provided in the lower area of ​​the wall provided in the cooking area of ​​the room.

[0076] The second cooking device (3) can be provided at a certain distance from the exhaust device (1).

[0077] The second cooking device (3) can be provided spaced apart from the first cooking device (2).

[0078] The second cooking device (3) can be provided at the bottom of the exhaust device (1).

[0079] The second cooking device (3) may include at least one of a cooking device that generates heat for heating food using electricity and a cooking device that generates heat for heating food by burning gas.

[0080] For example, the second cooking appliance (3) may include a gas range, an induction heater, or a radiant heater.

[0081] The second cooking device (3) cooks food while exposed to the cooking area. As a result, odors, smoke, and harmful gases may be generated while cooking food using the second cooking device (3), and the air present in the cooking area may be contaminated by the odors, smoke, and harmful gases. In other words, the second cooking device (3) may generate contaminated air during operation.

[0082] The second cooking device (3) can communicate with the exhaust device (1) and can also communicate with the first cooking device (2).

[0083] The cooking system may also further include a third cooking device (4) provided below the second cooking device (3). In this case, the third cooking device (4) may be provided on the floor surface of the cooking area of ​​the room.

[0084] The third cooking device (4) may be provided integrally with the second cooking device (3), or it may be provided so as to be separable from the second cooking device (3).

[0085] The third cooking device (4) may include an oven.

[0086] FIG. 2 is a perspective view of a cooking appliance according to an embodiment of the present disclosure.

[0087] In an embodiment of the present disclosure, the cooking appliance (2) may be integrated with an exhaust device. Components of the exhaust device (1) may be provided in the cooking appliance (2). That is, the cooking appliance (2) may be an over-the-range (OTR) equipped with an exhaust device (1).

[0088] The cooking device (2) may include a main body (200) that forms the exterior.

[0089] The main body (200) may be in the shape of a cuboid. The main body (200) may be in the shape of a cuboid with an opening formed on one side.

[0090] The main body (200) may include a first panel (201) forming the lower surface of the first cooking device (2), a second panel (202) forming the upper surface of the first cooking device (2), a third panel (203) provided between the first panel (201) and the second panel (202) and connecting the first side of the first panel (201) and the first side of the second panel (202), a fourth panel (204) provided between the first panel (201) and the second panel (202) and connecting the second side of the first panel (201) and the second side of the second panel (202), and a fifth panel (205) provided between the first panel (201) and the second panel (202) and connecting the third side of the first panel (201) and the third side of the second panel (202).

[0091] The first panel (201) may include a plurality of intake holes for sucking in contaminated air from the lower part of the cooking appliance (2). The first panel (201) may also be provided with a lamp (not shown) that indicates the exhaust on / off.

[0092] The second panel (202) may include an exhaust port (202a) to which an external exhaust pipe is connected. The exhaust port (202a) provided in the second panel (202) may be a hole that guides the inhaled contaminated air to the exhaust pipe to discharge it to the outside.

[0093] The first, second, third, fourth, and fifth panels (201, 202, 203, 204, 205) may be provided as a single unit or may be provided separately.

[0094] The first, second, third, fourth, and fifth panels (201, 202, 203, 204, 205) connected to each other can form an empty space.

[0095] The cooking device (2) may include a cooking chamber (210) provided inside the main body (200), a door (220) for opening or closing the cooking chamber (210), and a control panel (230) for receiving user input and displaying operation information of the cooking device.

[0096] The cooking chamber (210) can be formed in the shape of a cuboid with an opening formed on one side.

[0097] The cooking chamber (210) may include a cooking chamber panel (211) forming the cooking chamber. The cooking chamber panel (211) may be formed in the shape of a cuboid with an opening formed on one side.

[0098] The cooking room (210) may include a tray (not shown) on which food is placed.

[0099] The tray is provided on the lower surface of the surfaces of the cooking panel, but may be provided in the central area of ​​the lower surface of the cooking panel (211). The tray may be provided rotatable and may be provided detachably from the cooking panel (211). The tray may include a rotatable turntable.

[0100] The opening of the main body (200) and the opening of the cooking chamber (210) may be a place where food is stored or dispensed. The opening of the main body and the opening of the cooking chamber may be the front of the cooking chamber (210).

[0101] A door (220) may be provided on the front of the main body (200). The door (220) may be provided to be slidable in the up and down direction of the main body with the two sides of the main body (200) as axes. Here, the two sides of the main body (200) may include the left side and the right side of the main body (200).

[0102] The door (220) may also be provided to be slidable in the left and right directions of the main body with the two sides of the main body (200) as axes. Here, the two sides of the main body (200) may include the upper side and the lower side of the main body (200).

[0103] The door (220) may include a handle that is grasped by a user. The handle may be in the shape of a rod. The handle may be positioned vertically on the door (220) and may be positioned horizontally on the door (220).

[0104] The door (220) may include a viewing window (222, see FIG. 5). Through the viewing window of the door (220), the user can visually check the interior from the outside of the kitchen (210) while the kitchen (210) is closed.

[0105] A control panel (230) may be provided on one side of the front of the main body (200).

[0106] The control panel (230) may be provided on one side of the door (220) and may be provided adjacent to the door (220). The control panel (230) may also be provided on the left or right side of the door (220).

[0107] The control panel (230) may provide a user interface for the user and the cooking appliance (2) to interact. The user interface may include at least one input section and at least one output section.

[0108] At least one input unit can convert sensory information received from a user into an electrical signal.

[0109] At least one input unit may include a power button, an operation button, a course selection dial (or course selection button), a pause button, and an end button.

[0110] At least one input unit may further include an opening / closing button for opening or closing the door.

[0111] At least one input unit may include, for example, a keyboard, a mouse, a tact switch, a push switch, a slide switch, a toggle switch, a micro switch, a touch switch, a touchpad, a touchscreen, a jog dial, and / or a microphone.

[0112] At least one output unit can visually or audibly convey information related to the operation of the cooking device (2) to the user.

[0113] For example, at least one output unit can convey information to the user regarding the cooking course and the operating time of the cooking device (2). Information regarding the operation of the cooking device can be output via a screen, an indicator, voice, etc.

[0114] For example, at least one output unit can output output information corresponding to the closing operation of the door, and can output output information corresponding to the closing operation of the door.

[0115] At least one output unit may include, for example, a display unit and a speaker.

[0116] The display unit may be provided with a Cathode Ray Tube (CRT), Digital Light Processing (DLP) panel, Plasma Display Panel, Liquid Crystal Display (LCD) panel, Electro Luminescence (EL) panel, Electrophoretic Display (EPD) panel, Electrochromic Display (ECD) panel, Light Emitting Diode (LED) panel, or Organic Light Emitting Diode (OLED) panel, but is not limited thereto.

[0117] The cooking device (2) may include an internal space (240) provided between the main body (200) and the cooking chamber panel (211).

[0118] The internal space (240) may include an exhaust room (241) in which at least one fan (245) is provided, and a machine room (242) in which a magnetron (250) for generating microwaves for heating food is provided.

[0119] The exhaust chamber (241) may be a space for inhaling contaminated air and discharging the inhaled contaminated air.

[0120] In the machine room (242), a high voltage transformer (HVT), a high voltage diode, and a high voltage capacitor may be further provided to provide high voltage to the magnetron.

[0121] At least one fan (245) may include one or two blades and a fan motor that transmits rotational force to one or two blades.

[0122] If two blades are provided in at least one pan (245), the two blades may be provided in the lower space of the cooking chamber or the upper space of the cooking chamber.

[0123] If at least one fan (245) is provided with two blades, a fan motor may be provided between the two blades. The shafts of the two blades may be connected to the fan motor. The two blades may rotate in conjunction with the rotation of the fan motor.

[0124] A fan motor can have two axes extending in different directions. Each axis of the fan motor can be connected to the respective axes of the two blades.

[0125] The fan motor sucks in contaminated air located at the bottom or front of the cooking appliance (2) and causes the sucked-in contaminated air to pass through the upper space of the cooking appliance (2) and be discharged to the outside through the exhaust port (20a) of the second panel (202).

[0126] At least one fan (245) may be a centrifugal fan, an axial fan, or a turbo fan, and the type of at least one fan is not limited thereto.

[0127] At least one fan (245) may be a fan of any one of the following types: backward type, airfoil limit type, radial plate type, and sirocco type, but the type of at least one fan is not limited thereto.

[0128] The cooking device (2) may also include one or more heaters (not shown) that are provided in the cooking chamber (210) and apply heat to food.

[0129] The door (220) of the cooking device of the present embodiment can automatically move in a sliding manner to open or close the cooking chamber inside the main body (200). This will be explained with reference to FIGS. 3 to 10, FIGS. 11a, FIGS. 11b, and FIGS. 11c.

[0130] As illustrated in FIG. 3, the cooking appliance (2) includes a rail assembly (260, 270) and a driving assembly (280) for sliding the door (220), and may include an interlock assembly (290) for recognizing the opening and closing of the door.

[0131] The door (220) can be moved in the first horizontal direction (h1) relative to the first panel (201) of the main body and then moved in the first vertical direction (v2) so that the cooking chamber (210) of the main body can be opened.

[0132] The first horizontal direction (h1) is a direction horizontal to the arrangement direction of the first panel (201), and the first vertical direction (v1) may be a direction perpendicular to the arrangement direction of the first panel (201).

[0133] The door (220) can be moved in the second vertical direction (v2) relative to the first panel (201) of the main body and then moved in the second horizontal direction (h2) so that the cooking chamber (210) of the main body is closed.

[0134] The second vertical direction (v2) is a direction perpendicular to the arrangement direction of the first panel (201) and may be opposite to the first vertical direction (v1). For example, if the first vertical direction (v1) is a direction facing the upper side of the main body, the second vertical direction (v2) may be a direction facing the lower side of the main body (220).

[0135] The second horizontal direction (h2) is a direction horizontal to the arrangement direction of the first panel (201) and may be opposite to the first horizontal direction (h1).

[0136] The first horizontal direction (h1) may be the direction in which to move to separate from the opening (212) of the cooking chamber (210), and the second horizontal direction (h2) may be the direction in which to move to contact the opening (212) of the cooking chamber (210).

[0137] If the first horizontal direction (h1) is a direction facing the front of the main body (200), the second horizontal direction (h2) may be a direction facing the rear of the main body (200).

[0138] The position of the door (220) when the door (220) slides is described based on the lower surface (221) of the door (220).

[0139] The door (220) can move between the lower surface and the upper surface of the main body (200). Here, the lower surface of the main body (200) may include the first panel (201) of the main body. The upper surface of the main body (200) may include the second panel (202) of the main body.

[0140] The movement of the door (220) may include the movement of the door (220) from the first panel (201) of the main body (200) to the second panel (202) of the main body (200), and the movement of the door (220) from the second panel (202) of the main body (200) to the first panel (201) of the main body (200).

[0141] Moving the door (220) from the first panel (201) of the main body (200) to the second panel (202) of the main body (200) may include moving the door (220) in the first vertical direction (v1).

[0142] The door (220) can move in a first horizontal direction (h1) before moving from the first panel (201) of the main body (200) to the second panel (202) of the main body (200).

[0143] Moving the door (220) from the second panel (202) of the main body (200) to the first panel (201) of the main body (200) may include moving the door (220) in the second vertical direction (v2).

[0144] After moving from the second panel (202) of the main body (200) to the first panel (201) of the main body (200), the door (220) can move in the second horizontal direction (h2).

[0145] That is, the door (220) of the cooking appliance can move a first reference distance (d1) in the first horizontal direction (h1) based on the opening of the cooking chamber (210), and then move a second reference distance (d2) in the first vertical direction (v1).

[0146] Based on the closure of the cooking chamber (210), the door (220) of the cooking appliance can move a second reference distance (d2) in the second vertical direction (v2) and then move a first reference distance (d1) in the second horizontal direction (h2).

[0147] The second reference distance (d2) may be a distance corresponding to the vertical length of the cooking chamber or a length longer than the vertical length of the cooking chamber.

[0148] As illustrated in FIG. 4, the rail assembly may include a first rail portion (260) provided on the main body (200) of the cooking appliance.

[0149] The first rail section (260) can be provided inside the main body (200) and outside the cooking room (210).

[0150] The first rail section (260) may include one or more main body rails. The present embodiment describes a first rail section (260) including a first main body rail (260a) and a second main body rail (260b).

[0151] The first main body rail (260a) can be provided adjacent to the third panel (203) of the main body.

[0152] The first main body rail (260a) can be fixed to the third panel (203) of the main body.

[0153] The first main body rail (260a) can be provided between the third panel (203) of the main body and the cooking room panel (211).

[0154] The first main body rail (260a) can be provided in an upright shape between the first panel (201) and the second panel (202).

[0155] The first main body rail (260a) may include a first body (261), a first guide hole (262), and a first guide pin (263).

[0156] The first body (261) may be provided in the shape of a plate with both ends bent.

[0157] The first body (261) may include a first straight area, a first bending area bent from the first side of the first straight area, and a second bending area bent from the second side of the first straight area.

[0158] The second side of the first straight area of ​​the first body (261) may be in the opposite direction to the first side of the first straight area with respect to the first straight area. For example, the first bending area may be an area adjacent to the first panel (201). The second bending area may be an area adjacent to the second panel (202).

[0159] The first bending area can be bent approximately 90 degrees in the first bending direction from the first straight area.

[0160] The second bending area can be bent approximately 90 degrees in the second bending direction from the first straight area.

[0161] The first bending direction and the second bending direction may be opposite to each other. For example, the first bending direction may be the direction toward the fifth panel (205). The second bending area may be the direction toward the door (220).

[0162] That is, the first bending area can be bent approximately 90 degrees toward the fifth panel (205). The second bending area can be bent approximately 90 degrees toward the door (220). A portion of the second bending area can be inserted into the interior of the door (220).

[0163] The first guide hole (262) can be provided inside the first body (261).

[0164] The first guide hole (262) may be provided extending from the first straight area of ​​the first body (261) to the first bending area. The first guide hole (262) is not provided in the second bending area.

[0165] The first guide hole (262) may include a first straight hole provided in a first straight area of ​​the first body (261) and a first bending hole provided in a first bending area. That is, the first straight hole and the first bending hole may be connected to each other.

[0166] The first bending hole can be bent approximately 90 degrees from the first straight hole in the first bending direction. The first bending hole can be bent approximately 90 degrees from the first straight hole in the direction toward the fifth panel (205).

[0167] The first guide pin (263) can be provided in the second bending area of ​​the first body (261).

[0168] The first guide pin (263) can be provided adjacent to the first straight hole of the first guide hole (262).

[0169] The first guide pin (263) may be provided protruding from the second bending area of ​​the first body (261).

[0170] The first guide pin (263) can be connected to the second rail section (270) provided in the door (220).

[0171] The first guide pin (263) can be slidably connected to the second rail portion (270) provided in the door (220).

[0172] The first guide pin (263) may include a first protruding member protruding from the outer surface of the first guide pin (263). The first guide pin (263) may be slidably coupled to a second rail portion (270) provided in the door (220) by the first protruding member.

[0173] The first guide pin (263) is slidably connected to the second guide hole of the first door rail and can move along the first guide hole.

[0174] The second main body rail (260b) can be provided adjacent to the fourth panel (204) of the main body.

[0175] The second main body rail (260b) can be fixed to the fourth panel (204) of the main body.

[0176] The second main body rail (260b) can be provided between the fourth panel (204) of the main body and the cooking room panel (211).

[0177] The second main body rail (260b) may also be provided between the machine room (242) and the cooking room panel (211) of the main body.

[0178] The second main body rail (260b) can be provided in an upright shape between the machine room (242) and the cooking room panel (211) of the main body.

[0179] The second main body rail (260b) can be provided in a shape corresponding to the first main body rail (260a) and the cooking chamber (210) between them.

[0180] The second main body rail (260b) may include a first body (264), a first guide hole (265), and a first guide pin (266).

[0181] The shape and structure of the first body (264), first guide hole (265), and first guide pin (266) of the second main body rail (260b) may be identical to the shape and structure of the first body (261), first guide hole (262), and first guide pin (263) of the first main body rail (260a). Accordingly, a detailed description of the shape and structure of the second main body rail (260b) is omitted.

[0182] As illustrated in FIG. 5, the rail assembly may include a second rail section (270) provided on the door (220) of the cooking appliance.

[0183] The second rail section (270) can be provided inside the door (220).

[0184] The second rail section (270) is provided in the interior space of the door (220), and can be provided between the surface forming the edge of the door (220) and the viewing window (222) of the door.

[0185] The second rail section (270) may include one or more door rails. This embodiment describes a second rail section (270) including a first door rail (270a) and a second door rail (270b).

[0186] The first door rail (270a) can be provided adjacent to the third panel (203) of the main body.

[0187] The first door rail (270a) can be provided on the left panel (223) of the door (220).

[0188] The first door rail (270a) can be fixed to the left panel (223) of the door (220).

[0189] The left panel (223) of the door (220) may be a panel provided on the left side of the viewing window (222) of the door.

[0190] The first door rail (270a) can be provided between the left panel (223) and the viewing window (222) of the door (220).

[0191] The first door rail (270a) can be provided in an upright shape between the left panel (223) and the viewing window (222) of the door (220).

[0192] The first door rail (270a) can be slidably coupled to the first main body rail (260a).

[0193] The first door rail (270a) may include a second body (271), a second guide hole (272), a second guide pin (264), and a toothed member (274).

[0194] The second body (271) may be provided in the shape of a plate with both ends bent.

[0195] The second body (271) may include a second straight area, a third bending area bent from the first side of the second straight area, and a fourth bending area bent from the second side of the second straight area.

[0196] The second side of the second straight area of ​​the second body (271) may be in the opposite direction to the second side of the second straight area relative to the second straight area. For example, the third bending area may be an area adjacent to the first panel (201) of the main body. The third bending area may be an area adjacent to the cooking chamber (210) of the main body. The fourth bending area may be an area adjacent to the front panel (224) of the door.

[0197] The third bending area can be bent approximately 90 degrees in the first bending direction from the second straight area.

[0198] The fourth bending area can be bent approximately 90 degrees in the second bending direction from the second straight area.

[0199] The first bending direction and the second bending direction may be opposite to each other. For example, the first bending direction may be a direction toward the fifth panel (205), the first panel (201), or the cooking chamber (210). The second bending area may be a direction toward the front panel (224) of the door (220).

[0200] That is, the third bending area can be bent approximately 90 degrees toward the first panel (201), the fifth panel (205), or the cooking chamber (210). A portion of the third bending area can be inserted into the interior of the main body (200). The fourth bending area can be bent approximately 90 degrees toward the front panel (224) of the door (220).

[0201] The second guide hole (272) can be provided inside the second body (271).

[0202] The second guide hole (272) may be provided extending from the second straight area of ​​the second body (272) to the fourth bending area. The second guide hole (272) is not provided in the third bending area.

[0203] The second guide hole (272) may include a second straight hole provided in the second straight area of ​​the second body (271) and a second bending hole provided in the fourth bending area. That is, the second straight hole and the second bending hole may be connected to each other.

[0204] The second bending hole can be bent approximately 90 degrees from the second straight hole in the direction of the fourth bending. The second bending hole can be bent approximately 90 degrees from the second straight hole in the direction toward the front panel (224) of the door.

[0205] The second guide pin (273) can be provided in the third bending area of ​​the second body (271).

[0206] The second guide pin (273) can be provided adjacent to the second straight hole of the second guide hole.

[0207] The second guide pin (273) may be provided protruding from the third bending area of ​​the second body (271).

[0208] The second guide pin (273) can be connected to the first rail portion (260) provided in the main body (200).

[0209] The second guide pin (273) can be slidably connected to the first rail portion (260) provided in the main body (200).

[0210] The second guide pin (273) may include a second protruding member. The second guide pin (273) may be slidably coupled to a first rail portion (260) provided in the main body (200) by means of the second protruding member.

[0211] The second guide pin (273) is slidably connected to the first guide hole of the first main body rail and can move along the first guide hole.

[0212] The toothed member (274) may be provided on the side of the second straight area and the side of the fourth bending area of ​​the first door rail (270a). The toothed member (274) may also be provided integrally on the side of the second straight area and the side of the fourth bending area of ​​the first door rail (270a).

[0213] The gear member (274) can be provided at a position corresponding to the second straight hole and the fourth bending hole of the first door rail (270a).

[0214] It is also possible for the tooth member (274) to be physically connected to the side of the second straight area and the side of the fourth bending area of ​​the second body (271) while being provided separately from the second body.

[0215] The side of the second straight area of ​​the second body (271) may be the side facing the kitchen (210) among the sides of the second body (271).

[0216] The side of the fourth bending area of ​​the second body (271) may be the side facing the upper side of the door (220) among the sides of the second body (271).

[0217] The gear member (274) may include a rack gear that converts rotational motion into translational motion.

[0218] The tooth member (274) may include a plurality of teeth.

[0219] The tooth member (274) may include a plurality of first teeth arranged in a first direction and a plurality of second teeth arranged in a second direction perpendicular to the first direction.

[0220] The first tooth among the multiple second teeth may be connected to the last tooth among the multiple first teeth. That is, the multiple teeth of the tooth member may be connected to each other.

[0221] A plurality of teeth provided in the tooth member (274) may be provided at positions corresponding to the positions of the second straight hole and the second bending hole of the second body (271).

[0222] The teeth provided at a position corresponding to the position of the second bending hole may include a plurality of first teeth provided in a first direction.

[0223] The teeth provided at a position corresponding to the second straight hole of the second body (271) may include a plurality of second teeth provided in the second direction.

[0224] The tooth member (274) may include horizontal teeth provided on the horizontal side among the sides of the second body (271) and vertical teeth provided on the vertical side among the sides of the second body (271).

[0225] The horizontal teeth may be teeth provided on the side of the fourth bending area of ​​the first door rail (270a). The horizontal teeth may be first teeth.

[0226] The vertical teeth may be teeth provided on the side of the second straight area of ​​the first door rail (270a). The vertical teeth may be second teeth.

[0227] A plurality of teeth provided in the tooth member (274) can be coupled to the drive assembly (280).

[0228] The first door rail (270a) can slide up and down by the force transmitted to a plurality of teeth provided in the tooth member (274).

[0229] The second door rail (270b) can be provided adjacent to the fourth panel (204) of the main body.

[0230] The second door rail (270b) may be provided on the right panel (225) of the door. The second door rail (270b) may be fixed to the right panel (225) of the door.

[0231] The right panel (225) of the door (220) may be a panel provided to the right of the viewing window (222) of the door.

[0232] The second door rail (270b) can be provided between the right panel (225) of the door and the viewing window (222).

[0233] The second door rail (270b) can be provided in an upright shape between the right panel (225) of the door and the viewing window (222).

[0234] The second door rail (270b) can be slidably coupled to the second main body rail (260b).

[0235] The second door rail (270b) can be provided with a shape corresponding to the first door rail (270a) between the viewing window (222).

[0236] The second door rail (270b) may include a second body (275), a second guide hole (276), a second guide pin (277), and a toothed member (278).

[0237] The shape and structure of the second body (275), second guide hole (276), second guide pin (277), and tooth member (278) of the second door rail (270b) may be identical to the shape and structure of the second body (271), second guide hole (272), second guide pin (264), and tooth member (274) of the first door rail (270a). Accordingly, a detailed description of the shape and structure of the second door rail (270b) is omitted.

[0238] As shown in FIG. 7, a second guide pin (273) of a first door rail (270a) can be slidably coupled to a first guide hole (262) of a first main body rail (260a).

[0239] A second guide pin (277) of a second door rail (270b) can be slidably coupled to the first guide hole (265) of the second main body rail (260b).

[0240] The first guide pin (263) of the first main body rail (260a) can be slidably coupled to the second guide hole (272) of the first door rail (270a).

[0241] The first guide pin (266) of the second main body rail (260b) can be slidably coupled to the second guide hole (276) of the second door rail (270b).

[0242] That is, in response to the movement of the first door rail (270a), the second guide pin (273) of the first door rail (270a) can move along the first guide hole (262) of the first main body rail (260a).

[0243] In response to the movement of the second door rail (270b), the second guide pin (277) of the second door rail (270b) can move along the first guide hole (265) of the second main body rail (260b).

[0244] In this case, the first guide pin (263) of the first main body rail (260a) is connected to the second guide hole (273) of the first door rail (270a) to support the first door rail (270a) so that the first door rail (270a) slides safely while preventing the first door rail (270a) from coming off.

[0245] The first guide pin (266) of the second main body rail (260b) is connected to the second guide hole (277) of the second door rail (270b) to support the second door rail (270b) so that the second door rail (270b) slides safely while preventing the second door rail (270b) from coming off.

[0246] That is, the first guide pin (263) of the first main body rail (260a) and the first guide pin (266) of the second main body rail (260b) support the first door rail (270a) and the second door rail (270b), thereby allowing the first door rail (270a) and the second door rail (270b) to slide safely while maintaining balance.

[0247] As shown in FIG. 6, the drive assembly (280) may be provided inside the main body (200). The drive assembly (280) may be provided on the upper side of the cooking chamber inside the main body (200).

[0248] The drive assembly (280) is connected to the second rail section (270) of the rail assembly and applies a moving force to the second rail section (270).

[0249] As illustrated in FIGS. 6 and 8, the drive assembly (280) may include a gear shaft (281) provided between a first door rail (270a) and a second door rail (270b), a first rail gear (282) provided at a first end of the gear shaft (281), a second rail gear (283) provided at a second end of the gear shaft (281), a drive gear (284) provided in a portion of the gear shaft (281), a gear box (285) connected to the drive gear (284), and a drive motor (286) that transmits rotational force to the gear box (285).

[0250] The gear shaft (281) may be provided in the shape of a rod having a length corresponding to the distance between the first door rail (270a) and the second door rail (270b).

[0251] The gear shaft (281) can connect the first door rail (270a) and the second door rail (270b). The gear shaft (281) can transmit the rotational force of the drive motor (286) to the first door rail (270a) and the second door rail (270b).

[0252] The first rail gear (282) may be provided at the first end of the gear shaft (281). The first rail gear (282) may be fixedly provided at the first end of the gear shaft (281).

[0253] The first rail gear (282) can receive rotational force through the gear shaft (281).

[0254] The first rail gear (282) can be connected to the tooth member (274) of the first door rail (270a).

[0255] The first rail gear (282) may have a round shape and may include a plurality of teeth. The first rail gear (282) may be a spur gear, and the type of the first rail gear is not limited thereto.

[0256] A plurality of teeth of the first rail gear (282) can mesh with a plurality of teeth provided in the tooth member (274) of the first door rail (270a).

[0257] When the first rail gear (282) rotates, the first door rail (270a) can receive power from the first rail gear (282). That is, the tooth member (274) of the first door rail (270a) receives power from the first rail gear (282) while engaged with a plurality of teeth of the first rail gear (282) and can move using the received power.

[0258] More specifically, the first rail gear (282) can cause the first door rail (270a) to move horizontally or vertically by engaging with the horizontal teeth and vertical teeth of the tooth member (274) of the first door rail (270a) among the plurality of teeth of the tooth member (274) of the first door rail (270a). At this time, the first door rail (270a) can move horizontally or vertically by the rotational force of the first rail gear (282).

[0259] The second rail gear (283) may be provided at the second end of the gear shaft (281). The second rail gear (283) may be fixedly provided at the second end of the gear shaft (281).

[0260] The second rail gear (283) can receive rotational force through the gear shaft (281).

[0261] The second rail gear (283) can be connected to the tooth member (278) of the second door rail (270b).

[0262] The second rail gear (283) may have a round shape and may include a plurality of teeth. The second rail gear (283) may be a spur gear, and the type of the second rail gear is not limited thereto.

[0263] The shape and structure of the second rail gear (283) may be the same as that of the first rail gear (282). That is, the number, size, and spacing of the multiple teeth of the second rail gear (283) may be the same as the number, size, and spacing of the multiple teeth of the first rail gear (282).

[0264] Multiple teeth of the second rail gear (283) can be engaged with multiple teeth provided on the tooth member (278) of the second door rail (270b).

[0265] When the second rail gear (283) rotates, the second door rail (270b) can receive power from the second rail gear (283). That is, the tooth member (278) of the second door rail (270b) receives power from the second rail gear (283) while engaged with a plurality of teeth of the second rail gear (283) and can move using the received power.

[0266] More specifically, the second rail gear (283) can cause the second door rail (270b) to move horizontally or vertically by engaging with the horizontal teeth and vertical teeth of the tooth member (278) of the second door rail (270b) among the plurality of teeth of the tooth member (278) of the second door rail (270b). At this time, the second door rail (270b) can move horizontally or vertically by the rotational force of the second rail gear (283).

[0267] The drive gear (284) can be fixed to a portion of the gear shaft (281).

[0268] The drive gear (284) can be provided between the first rail gear (282) and the second rail gear (283).

[0269] The drive gear (284) can transmit the rotational force of the drive motor (286) to the gear shaft (281). At this time, the force transmitted to the gear shaft (281) can be transmitted to the first rail gear (282) and the second rail gear (283).

[0270] That is, the drive gear (284) can transmit the rotational force of the drive motor (286) to the first rail gear (282) and the second rail gear (283).

[0271] The drive gear (284) may have a round shape and may include a plurality of teeth.

[0272] The drive gear (284) may be a spur gear, and the type of drive gear (284) is not limited to this.

[0273] The drive gear (284) can be connected to the gearbox (285) and can receive rotational force from the drive motor (286) through the gearbox (285).

[0274] The gearbox (285) can be connected to the drive motor (286) and to the drive gear (284).

[0275] The gearbox (285) can transmit rotational force received from the drive motor (286) to the drive gear (284).

[0276] The gearbox (285) can adjust the rotational force received from the drive motor (286) to the magnitude of the force for moving the first and second door rails (270a, 270b).

[0277] The magnitude of the force for moving the first and second door rails (270a, 270b) may be a reference size, such that the magnitude of the force for sliding the door (220) is a reference size.

[0278] The gearbox (285) may include one or more gears capable of converting the rotational force of the drive motor (286) into a force of a reference size.

[0279] This embodiment describes a gearbox (285) including first, second, and third gears.

[0280] The first gear (285a) can be connected to the drive gear (284) and can transmit rotational force to the drive gear (284). The first gear (285a) can rotate the drive gear (284).

[0281] The first gear (285a) may include a first double gear. The first double gear may include two spur gears. The first double gear may include a first spur gear and a second spur gear.

[0282] The first spur gear and the second spur gear of the first gear (285a) may differ in the radius of the gear body, the number of teeth, and the spacing between adjacent teeth. For example, the radius of the gear body of the first spur gear may be smaller than the radius of the gear body of the second spur gear.

[0283] The first spur gear of the first gear (285a) can be connected to the drive motor (284). Multiple teeth of the first spur gear of the first gear (285a) can be engaged with multiple teeth of the drive gear (284).

[0284] The second slant gear of the first gear (285a) can be connected to the second gear (285b). Multiple teeth provided on the second slant gear of the first gear (285a) can mesh with the teeth of the second gear (285b). The second slant gear of the first gear (285a) can receive rotational force from the second gear (285b).

[0285] The first spur gear of the first gear (285a) can rotate in conjunction with the second spur gear of the first gear (285a), and thereby receive rotational force from the second gear (285b).

[0286] The first gear (285a) can adjust the magnitude of the force transmitted from the second gear (285b) to the driving gear (284) by the gear ratio of the first spur gear and the second spur gear.

[0287] The second gear (285b) can be connected to the third gear (285c). The second gear (285b) can receive rotational force from the drive motor (286) through the third gear (285c).

[0288] The second gear (285b) can be connected to the first gear (285a) and can transmit rotational force received from the third gear (285c) to the first gear (285a). The second gear (285b) can rotate the first gear (285a).

[0289] The second gear (285b) may include a second double gear. The second double gear may include a spur gear and a helical gear.

[0290] The spur gear of the second gear (285b) is connected to the first gear (285a), and can be connected to the second spur gear of the first gear (285a).

[0291] A plurality of teeth provided on the spur gear of the second gear (285b) can mesh with a plurality of teeth on the second spur gear of the first gear (285a).

[0292] The helical gear of the second gear (285b) can be connected to the third gear (285c).

[0293] Multiple teeth provided on the helical gear of the second gear (285b) can mesh with multiple teeth of the third gear (285c).

[0294] The helical gear of the second gear (285b) can receive rotational force from the third gear (285c).

[0295] The spur gear of the second gear (285b) can rotate in conjunction with the helical gear of the second gear (285b), and thereby receive rotational force from the third gear (285c).

[0296] The magnitude of the force transmitted from the third gear (285c) to the second gear (285b) can be adjusted by the gear ratio of the helical gear of the second gear (285b) and the spur gear of the second gear (285b).

[0297] The third gear (285c) can be connected to the shaft of the drive motor (286). The third gear (285c) can receive rotational force from the drive motor (286). The third gear (285c) can transmit the rotational force received from the drive motor (286) to the second gear (285b).

[0298] The third gear (285c) may include a helical gear.

[0299] The third gear (285c) may include a plurality of teeth. The plurality of teeth of the third gear (285c) may mesh with the plurality of teeth provided on the helical gears of the second gear (285b).

[0300] The first gear (285a), second gear (285b), and third gear (285c) provided in the gearbox can transmit the rotational force of the drive motor (286) to the first and second rail gears (282, 283) via the drive gear (284). In this case, the magnitude of the force transmitted from the drive motor (286) to the first and second rail gears (282, 283) can be adjusted in correspondence with the gear ratios of the first gear (285a), second gear (285b), and third gear (285c).

[0301] The first gear (285a), the second gear (285b), and the third gear (285c) are merely examples of the gearbox (285), and the configuration of the gearbox is not limited thereto.

[0302] The drive motor (286) can generate rotational force by driving. The drive motor (286) can be connected to the gearbox (285) and can transmit rotational force to the gearbox (285).

[0303] The drive motor (286) may rotate in a first rotation direction or in a second rotation direction. The first rotation direction may be opposite to the second rotation direction. For example, if the first rotation direction is clockwise, the second rotation direction may be counterclockwise. For another example, if the first rotation direction is counterclockwise, the second rotation direction may be clockwise.

[0304] The first rotation direction may be a rotation direction for opening the door. The second rotation direction may be a rotation direction for closing the door.

[0305] The drive motor (286) can transmit rotational force in the first rotational direction to the gearbox (285) and rotational force in the second rotational direction to the gearbox (285).

[0306] The rotational force of the drive motor (286) can be transmitted to the first and second rail gears (282, 283) via the gearbox (285), drive gear (284), and gear shaft (281).

[0307] The rotational force of the drive motor (286) can be converted into a translational force as it is transmitted from the first and second rail gears (282, 283) to the toothed members (274, 278) of the first and second door rails (270a, 270b).

[0308] By means of the translational motion force applied to the toothed members (274, 278) of the first and second door rails (270a, 270b), the door (220) can perform a sliding movement. That is, the door (220) can perform a sliding movement by means of the rail assembly (260, 270) and the drive assembly (280). The door (200) can open or close the kitchen chamber (210) by sliding movement. This is explained with reference to FIGS. 9a, 9b, 9c, and 9d.

[0309] FIG. 9a is a drawing showing the state of the first and second door rails (270a, 270b) corresponding to the closed state of the door (220).

[0310] The second guide pin (273) of the first door rail (270a) may be positioned in the first bending hole among the first guide holes (262) of the first main body rail (260a) in correspondence with the closed state of the door. The second guide pin (273) of the first door rail (270a) may be positioned in the end region of the first bending hole of the first main body rail (260a). Here, the end region of the first bending hole of the first main body rail (260a) may include the end region of the first guide hole (262) of the first main body rail (260a).

[0311] A first guide pin (263) of the first main body rail (260a) may be positioned in the second bending hole of the second guide hole (272) of the first door rail (270a). A first guide pin (263) of the first main body rail (260a) may be positioned in the end region of the second bending hole of the second guide hole (272) of the first door rail (270a). Here, the end region of the second bending hole of the second guide hole (272) of the first door rail (270a) may include the end region of the second guide hole (272) of the first door rail (270a).

[0312] The first rail gear (282) of the drive assembly can be engaged with the horizontal teeth of the tooth member (274) of the first door rail (270a). More specifically, the first rail gear (282) of the drive assembly is engaged with the initial position of the horizontal teeth of the tooth member (274) of the first door rail (270a). Here, the initial position of the horizontal teeth of the tooth member (274) of the first door rail (270a) may include the initial position of the tooth member (274) of the first door rail (270a).

[0313] The second guide pin (277) of the second door rail (270b) may be located in the first bending hole among the first guide holes (265) of the second main body rail (260b). That is, the second guide pin (277) of the second door rail (270b) may be located in the end area of ​​the first bending hole of the second main body rail (260b). Here, the end area of ​​the first bending hole of the second main body rail (260b) may include the end area of ​​the second guide hole (265) of the second main body rail (260b).

[0314] The first guide pin (266) of the second main body rail (260b) can be positioned in the second bending hole of the second guide hole (276) of the second door rail (270b).

[0315] A first guide pin (266) of the second main body rail (260b) may be positioned in the end region of the second bending hole of the second guide hole (276) of the second door rail (270b). Here, the end region of the second bending hole of the second guide hole (276) of the second door rail (270b) may include the end region of the second guide hole (272) of the second door rail (270b).

[0316] The second rail gear (283) of the drive assembly may be engaged with the horizontal teeth of the tooth member (278) of the second door rail (270b). More specifically, the second rail gear (283) of the drive assembly is engaged with the initial position of the horizontal teeth of the tooth member (278) of the second door rail (270b). Here, the initial position of the horizontal teeth of the tooth member (278) of the second door rail (270b) may include the initial position of the tooth member (274) of the second door rail (270b).

[0317] FIG. 9b is a drawing showing the horizontal movement state of the first and second door rails (270a, 270b) corresponding to the open state of the door (220).

[0318] The first rail gear (282) and the second rail gear (283) can be rotated by the rotation of the drive motor (286) in the first rotational direction. Additionally, the tooth member (274) of the first door rail (270a) can move straight in the horizontal direction by the rotational force acting on the first rail gear (282). The tooth member (278) of the second door rail (270b) can move straight in the horizontal direction by the rotational force acting on the second rail gear (283) through the gear shaft (281). This will be explained in more detail.

[0319] The first door rail (270a) can move straight in a horizontal direction until the first rail gear (282) reaches a switching position from the initial position of the tooth member (274) of the first door rail (270a).

[0320] The switching position of the tooth member (274) of the first door rail (270a) may be a position where the horizontal tooth and the vertical tooth of the tooth member (274) of the first door rail (270a) meet, and the forming direction of the tooth provided in the tooth member (274) of the first door rail (270a) may be switched.

[0321] The first door rail (270a) can move horizontally by a first reference distance (d1) corresponding to the length of the horizontal teeth of the tooth member (274) of the first door rail (270a).

[0322] The second guide pin (273) of the first door rail (270a) can move from the end area of ​​the first bending hole of the first guide hole (262) of the first main body rail (260a) to the start area of ​​the first straight hole of the first guide hole (262) of the first main body rail (260a).

[0323] The starting area of ​​the first straight hole of the first guide hole (262) of the first main body rail (260a) may be an area where the first straight hole and the first bending hole of the first guide hole (262) of the first main body rail (260a) meet, and may be an area where the formation direction of the first guide hole (262) of the first main body rail (260a) changes.

[0324] The second guide hole (272) of the first door rail (270a) can move horizontally along the first guide pin (263) of the first main body rail (260a).

[0325] Based on the completion of the horizontal movement of the first door rail (270a), the first guide pin (263) of the first main body rail (260a) may be positioned in the starting area of ​​the second straight hole of the second guide hole (272) of the first door rail (270a).

[0326] The starting area of ​​the second straight hole of the second guide hole (272) of the first door rail (270a) may be an area where the second bending hole and the second straight hole of the second guide hole (272) of the first door rail (270a) meet, and may be an area where the formation direction of the second guide hole (272) of the first door rail (270a) changes.

[0327] The second door rail (270b) can move straight in a horizontal direction until the second rail gear (283) reaches a switching position from the initial position of the tooth member (278) of the second door rail (270b).

[0328] The switching position of the tooth member (278) of the second door rail (270b) may be a position where the horizontal tooth and the vertical tooth of the tooth member (278) of the second door rail (270b) meet, and the forming direction of the tooth provided in the tooth member (278) of the second door rail (270b) may be switched.

[0329] The second door rail (270b) can move horizontally by a first reference distance (d1) corresponding to the length of the horizontal teeth of the tooth member (278) of the second door rail (270b).

[0330] The second guide pin (277) of the second door rail (270b) can move from the end area of ​​the first bending hole of the first guide hole (265) of the second main body rail (260b) to the start area of ​​the first straight hole of the first guide hole (265) of the second main body rail (260b).

[0331] The starting area of ​​the first straight hole of the first guide hole (265) of the second main body rail (260b) may be an area where the first straight hole and the first bending hole of the first guide hole (265) of the second main body rail (260b) meet, and may be an area where the formation direction of the first guide hole (265) of the second main body rail (260b) changes.

[0332] The second guide hole (276) of the second door rail (270b) can move horizontally along the first guide pin (266) of the second main body rail (260b).

[0333] Based on the completion of the horizontal movement of the second door rail (270b), the first guide pin (266) of the second main body rail (260b) may be positioned in the starting area of ​​the second straight hole of the second guide hole (276) of the second door rail (270b).

[0334] The starting area of ​​the second straight hole of the second guide hole (276) of the second door rail (270b) may be an area where the second bending hole and the second straight hole of the second guide hole (276) of the second door rail (270b) meet, and may be an area where the formation direction of the second guide hole (275) of the second door rail (270b) changes.

[0335] In this way, when the toothed member (274) of the first door rail (270a) moves straight in the horizontal direction and the toothed member (278) of the second door rail (270b) moves straight in the horizontal direction, the door (220) can be separated from the main body (200) and moved forward by a first reference distance (d1) of the main body (220).

[0336] FIGS. 9C and 9D are drawings showing the vertical movement state of the first and second door rails (270a, 270b) corresponding to the open state of the door (220).

[0337] In a state where the first rail gear (282) is present at the switching position of the tooth member (274) of the first door rail (270a) and the second rail gear (283) is present at the switching position of the tooth member (278) of the second door rail (270b), the first rail gear (282) and the second rail gear (283) can be rotated by the driving motor (286) rotating in the first rotational direction. At this time, the tooth member (274) of the first door rail (270a) can move straight in the vertical direction by the rotational force acting on the first rail gear (282), and the tooth member (278) of the second door rail (270b) can move straight in the vertical direction by the rotational force acting on the second rail gear (283).

[0338] The switching position of the tooth member (274) of the first door rail (270a) may be a position where the horizontal tooth and the vertical tooth of the tooth member (274) of the first door rail (270a) meet, and may be a position where the formation direction of the tooth provided in the tooth member (274) of the first door rail (270a) is switched.

[0339] The switching position of the tooth member (278) of the second door rail (270b) may be a position where the horizontal tooth and the vertical tooth of the tooth member (278) of the second door rail (270b) meet, and may be a position where the formation direction of the tooth provided in the tooth member (278) of the second door rail (270b) is switched.

[0340] The first door rail (270a) can move straight in a vertical direction until the first rail gear (282) reaches the end position of the tooth member (274) of the first door rail (270a) from the transition position of the tooth member (274) of the first door rail (270a).

[0341] The end position of the tooth member (274) of the first door rail (270a) may include the end position of the vertical tooth of the tooth member (274) of the first door rail (270a).

[0342] The end position of the toothed member (274) of the first door rail (270a) may include the position where the second straight area and the third bending area of ​​the second body of the first door rail (270a) meet.

[0343] The end position of the tooth member (274) of the first door rail (270a) may include the end position of the second guide hole of the first door rail (270a).

[0344] The first door rail (270a) can move vertically by a second reference distance (d2) corresponding to the length of the vertical teeth of the tooth member (274) of the first door rail (270a).

[0345] The second guide pin (273) of the first door rail (270a) can move from the starting area of ​​the first straight hole of the first guide hole (262) of the first main body rail (260a) to the end area of ​​the first straight hole of the first guide hole (262).

[0346] The end region of the first straight hole of the first guide hole (262) of the first main body rail (260a) may include the end region of the first guide hole (262) of the first main body rail (260a).

[0347] The end region of the first straight hole of the first guide hole (262) of the first main body rail (260a) may include the area where the first straight region of the first body of the first main body rail (260a) meets the second bending region.

[0348] The second guide hole (272) of the first door rail (270a) can move vertically along the first guide pin (263) of the first main body rail (260a).

[0349] At the time when the vertical movement of the first door rail (270a) is completed, the first guide pin (263) of the first main body rail (260a) may be positioned in the end area of ​​the second straight hole of the second guide hole (272) of the first door rail (270a).

[0350] The end area of ​​the second straight hole of the second guide hole (272) of the first door rail (270a) may include the end area of ​​the second guide hole (272) of the first door rail (270a).

[0351] The end area of ​​the second straight hole of the second guide hole (272) of the first door rail (270a) may include the area where the second straight area of ​​the second body of the first door rail (270a) meets the third bending area.

[0352] The second door rail (270b) can move straight in a vertical direction until the second rail gear (283) reaches the end position of the tooth member (278) of the second door rail (270b) from the transition position of the tooth member (278) of the second door rail (270b).

[0353] The end position of the tooth member (278) of the second door rail (270b) may include the end position of the vertical tooth of the tooth member (278) of the second door rail (270b).

[0354] The end position of the toothed member (278) of the second door rail (270b) may include the position where the second straight area and the third bending area of ​​the second body of the second door rail (270b) meet.

[0355] The end position of the tooth member (278) of the second door rail (270b) may include the end position of the second guide hole of the second door rail (270b).

[0356] The second door rail (270b) can move vertically by a second reference distance (d2) corresponding to the length of the vertical teeth of the tooth member (278) of the second door rail (270b).

[0357] The second guide pin (277) of the second door rail (270b) can move from the starting area of ​​the first straight hole of the first guide hole (265) of the second main body rail (260b) to the end area of ​​the first straight hole of the first guide hole (265).

[0358] The end area of ​​the first straight hole of the first guide hole (265) of the second main body rail (260b) may include the end area of ​​the first guide hole (265) of the second main body rail (260b).

[0359] The end region of the first straight hole of the first guide hole (265) of the second main body rail (260b) may include the area where the first straight region of the first body of the second main body rail (260b) and the second bending region meet.

[0360] The second guide hole (276) of the second door rail (270b) can move vertically along the first guide pin (266) of the second main body rail (260b).

[0361] At the time when the vertical movement of the second door rail (270b) is completed, the first guide pin (266) of the second main body rail (260b) may be positioned in the end area of ​​the second straight hole of the second guide hole (276) of the second door rail (270b).

[0362] The end area of ​​the second straight hole of the second guide hole (276) of the second door rail (270b) may include the end area of ​​the second guide hole (276) of the second door rail (270b).

[0363] The end area of ​​the second straight hole of the second guide hole (276) of the second door rail (270b) may include the area where the second straight area of ​​the second body of the second door rail (270b) meets the third bending area.

[0364] The completion of the vertical movement of the first door rail (270a) and the completion of the vertical movement of the second door rail (270b) signifies the completion of the opening of the door (220).

[0365] In this way, when the toothed member (274) of the first door rail (270a) moves straight in the vertical direction by a second reference distance and the toothed member (278) of the second door rail (270b) moves straight in the vertical direction by a second reference distance, the door (220) can slide upward and open the kitchen.

[0366] The drive assembly (280) can make the door close by rotating the drive motor (286) in the second rotation direction.

[0367] The drive assembly (280) can close the kitchen by operating in the opposite order to the opening and moving motion of the door.

[0368] The cooking appliance may further include an interlock assembly (290) for recognizing the opening and closing of the door (220). This is explained with reference to FIGS. 6, 10a, and 10b.

[0369] As shown in FIG. 6, the interlock assembly (290) can be provided in the main body (200).

[0370] The interlock assembly (290) may be provided adjacent to the rail assembly (260, 270).

[0371] The interlock assembly (290) may be one or more. The present embodiment describes an interlock assembly including a first interlock part (290a) and a second interlock part (290b).

[0372] The first interlock section (290a) may be provided adjacent to the first main body rail (260a). The second interlock section (290b) may be provided adjacent to the second main body rail (260b).

[0373] The structure of the second interlock section (290b) may be the same as the first interlock section (290a). Therefore, only the structure of the first interlock section (290a) will be described.

[0374] As illustrated in FIGS. 10a and 10b, the first interlock unit (290a) includes a cam (291) that rotates in response to the open and closed states of the door (220), a first sensor (292) that generates an on / off signal based on the rotation of the cam (291), and a second sensor (293) that generates an on / off signal based on the rotation of the cam (291), and may include a door pin (294) provided on the door (220) and rotating the cam (291) in response to the open and closed states of the door (220).

[0375] The cam (291) can be powered by the door pin (294) when the door (220) is in a closed state.

[0376] The cam (291) can remove the force applied by the door pin (294) when the door (220) is in an open state.

[0377] The cam (291) can rotate in a first direction or a second direction by a force applied or removed by the door pin (294).

[0378] The first sensor (292) detects the rotation of the cam (291) and can generate an ON signal or an OFF signal in response to the detected rotation of the cam (291). The ON signal and the OFF signal may be signals corresponding to the opening or closing of the door.

[0379] That is, the first sensor (292) can generate a signal corresponding to the opening and closing of the door. For example, the first sensor (292) can generate an ON signal corresponding to the opening of the door or an OFF signal corresponding to the closing of the door.

[0380] The first sensor (292) may be a Hall sensor, an optical sensor, a capacitive sensor, or an ultrasonic sensor, and the type of sensor is not limited thereto.

[0381] The first sensor (292) may include an electronic switch. The electronic switch may be a micro switch or a limit switch.

[0382] The second sensor (293) detects the rotation of the cam (291) and can generate an ON signal or an OFF signal in response to the detected rotation of the cam (291). The ON signal and the OFF signal may be signals corresponding to the opening or closing of the door.

[0383] That is, the second sensor (293) can generate a signal corresponding to the opening and closing of the door. For example, the second sensor (293) can generate an ON signal corresponding to the opening of the door or an OFF signal corresponding to the closing of the door.

[0384] The second sensor (293) may be a Hall sensor, an optical sensor, a capacitive sensor, or an ultrasonic sensor, and the type of sensor is not limited thereto.

[0385] The second sensor (293) may include an electronic switch. The electronic switch may be a micro switch or a limit switch.

[0386] For example, if the first sensor (292) is a sensor that detects the opening of the door, the second sensor (293) may be a sensor that detects the closing of the door. For another example, if the first sensor (292) is a sensor that detects the closing of the door, the second sensor (293) may be a sensor that detects the opening of the door. In the present embodiment, the first sensor may be a sensor that detects the opening of the door, and the second sensor may be a sensor that detects the closing of the door.

[0387] If the first sensor (292) is a sensor that detects the opening of the door, the first sensor (292) can generate an ON signal in response to the opening of the door and can generate an OFF signal in response to the closing of the door. The first sensor (292) can generate an ON signal as an opening signal.

[0388] If the second sensor (293) is a sensor that detects the closing of the door, the second sensor (293) can generate an ON signal in response to the closing of the door and can generate an OFF signal in response to the opening of the door. The second sensor (293) can generate an ON signal as a closing signal.

[0389] The sensor that detects the opening and closing of the door can also be provided as a single sensor.

[0390] The door pin (294) can move together with the door (220) in response to the movement of the door (220). The door pin (294) can have a length corresponding to the movement distance of the door (220).

[0391] The door pin (294) can be inserted into the first interlock part (290a) in response to the closed state of the door (220). The door pin (294) can be separated from the first interlock part (290a) in response to the open state of the door (220).

[0392] The door pin (294) can apply force to the cam (291) by being inserted into the first interlock part (290a), and can remove the force applied to the cam (291) by being separated from the first interlock part (290a).

[0393] Separation from the first interlock unit (290a) in response to the open state of the door (220) may include withdrawal from the first interlock unit (290a) in response to the open state of the door (220).

[0394] The door pin (294) can cause the cam (291) to rotate in a first direction or a second direction by applying force to the cam (291) or removing force from the cam.

[0395] The cooking device can prevent electromagnetic wave exposure caused by the operation of the magnetron by using an interlock assembly (290) to stop the operation of the magnetron when the door (220) is opened.

[0396] As shown in FIG. 11a, it can be seen that the door pin (294) is inserted into the first interlock part (290a) in the main body based on the door being in a closed state and is in a state of applying force to the cam (291).

[0397] As shown in FIG. 11b, it can be seen that the door pin (294) is in a state of being detached from the first interlock part (290a) in the main body (200) based on the door being in a closed state, and the force applied to the cam (291) is removed.

[0398] As shown in FIG. 11c, it can be seen that the door pin (294) is separated from the main body (200) by moving the door (220) forward by a first reference distance (d1). The door (220) can move straight upward based on the completion of the separation of the door pin (294) from the main body (200).

[0399] In this way, the cooking device can prevent the sliding movement of the door (220) by moving the door (220) forward by a first reference distance (d1) when the door (220) is opened, thereby preventing the door pin (294) provided on the door (220) from getting caught on the main body (200).

[0400] And when the door (220) is closed, the cooking device moves the door (220) to the rear of the main body by a first reference distance (d1). This allows the opening and closing of the door (220) to be easily recognized while preventing failure of the interlock assembly (290).

[0401] FIG. 12 is a modified example of a driving assembly of a cooking appliance according to an embodiment of the present disclosure.

[0402] As illustrated in FIG. 13, the cooking device may further include a first limiter (287) provided adjacent to the first rail gear (282) and a second limiter (288) provided adjacent to the second rail gear (283). More specifically, the first limiter (287) may be provided on the gear shaft (281) and may be provided between the first rail gear (282) and the drive gear (284). The second limiter (288) may be provided on the gear shaft (281) and may be provided between the second rail gear (283) and the drive gear (284).

[0403] The first and second limiters (287, 288) can separate the gear shaft (281) and the first rail gear (282) and separate the gear shaft (281) and the second rail gear (283) based on the application of a force greater than the reference size to the first and second rail gears (282, 283) through the door (220).

[0404] By separating the gear shaft (281) and the first rail gear (282) and separating the gear shaft (281) and the second rail gear (283) by means of the first and second limiters (287, 288), it is possible to prevent a force greater than the standard size applied to the door (220) from being applied to the gearbox (285) and the drive motor (286). This prevents failure of the gearbox (285) and the drive motor (286) due to external force.

[0405] In addition, the present embodiment may allow the door (220) to be opened or closed using the user's force by providing first and second limiters (287, 288) in the drive assembly (280). That is, the present embodiment may open or close the door manually.

[0406] The first and second limiters (287, 288) can connect the gear shaft (281) and the first rail gear (282) and connect the gear shaft (281) and the second rail gear (283) based on removing a force greater than a reference size from the first and second rail gears (282, 283) through the door (220). This allows the door (220) to slide automatically.

[0407] The first and second limiters (287, 288) may be devices that transmit rotational force using frictional force when the torque is below the set torque, transmit rotational force when the torque is above the set torque due to slip, and restore the original state by changing from the torque above the set torque to the torque below the set torque.

[0408] The cooking device may also include a limiter (not shown) connected between a drive motor (286) and a gearbox (285) instead of first and second limiters (287, 288) connected to first and second rail gears (282, 283).

[0409] A limiter connected between the drive motor (286) and the gearbox (285) can prevent force by the user from being applied to the drive motor (286) by causing the shaft of the drive motor (286) and the gearbox (285) to be separated based on the application of a force greater than a reference size through the door (220) and the gearbox (285).

[0410] The limiter position described above is merely an example, and the limiter position is not limited to a position adjacent to the first and second rail gears or a position adjacent to the drive motor.

[0411] That is, the limiter position can be any one of the positions between the drive motor and the second rail section.

[0412] The cooking appliance of the present embodiment is a cooking appliance equipped with an exhaust device, but it can also be implemented using a cooking appliance without an exhaust device.

[0413] FIG. 13 is a control configuration diagram of a cooking appliance according to an embodiment of the present disclosure.

[0414] The cooking device (2) may include a control panel (230), a fan (245), a magnetron (250), a drive motor (286), a first sensor (292), a second sensor (293), a third sensor (289), a communication unit (310), and a control unit (320).

[0415] The control panel (230) may provide a user interface for the user and the cooking appliance (2) to interact. The control panel (230) may include an input section (231), a display section (232), and a speaker (233).

[0416] The input unit (231) can transmit input information corresponding to user input to the control unit (320).

[0417] User input may include door opening commands and door closing commands.

[0418] The input unit (231) may include an open button that receives a door opening command and a close button that receives a door closing command.

[0419] The input unit (231) may also include a door control button that receives door opening commands and door closing commands.

[0420] User input may include information about the status of the door. The status of the door may include the door's fully open state, the door's partially open state, and the door's fully closed state.

[0421] User input may further include a command to transmit fault information service application information.

[0422] User input may include a cooking start command, a cooking end command, and a pause command.

[0423] User input may include information related to food preparation. For example, user input may include cooking mode information, target cooking temperature information, and cooking time information.

[0424] The display unit (232) can visually output operation information of the cooking device corresponding to the control command of the control unit (320) so that the user can recognize it.

[0425] The operation information of the cooking appliance may include information regarding the cooking state, cooking pause state, cooking end state, cooking mode, target cooking temperature, total cooking time, and remaining cooking time, and may include information regarding the door opening state and door closing state.

[0426] The display unit (232) can display overload information of the door (220).

[0427] The display unit (232) can display fault information of the first and second sensors and fault information of the drive motor, and it is also possible to display guidance information regarding the fault.

[0428] Information regarding malfunctions may include malfunction response information, malfunction warning information and malfunction resolution information, and information on receiving malfunction service requests via telephone or the internet.

[0429] The display unit (232) may display request information requesting input regarding the state of the door, such as opening and closing the door, and may also display user attention information in response to the opening and closing of the door.

[0430] The speaker (233) can audibly output operation information of the cooking device corresponding to the control command of the control unit (320) so that the user can perceive it.

[0431] The speaker (233) can output overload information of the door (220) as sound. The overload information of the door may include overload information of the drive motor.

[0432] The speaker (233) can output sound information regarding the failure of the first and second sensors and the failure of the drive motor, and it is also possible to output voice information regarding the failure.

[0433] The speaker (233) can output request information requesting input regarding the open and closed states of the door as voice, and can also output user attention information as voice in response to the opening and closing of the door.

[0434] The fan (245) can suck in surrounding contaminated air and expel it to the outside.

[0435] The contaminated air may be odors, gases, and steam generated when cooking food using other cooking appliances, or odors, gases, and steam generated during cooking food through the cooking appliance (2).

[0436] The fan (245) can be rotated or stopped based on a control command from the control unit (320). The fan (245) can be rotated at a rotational speed corresponding to the control command from the control unit (320).

[0437] The magnetron (250) can be operated or stopped based on a control command from the control unit (320).

[0438] The magnetron (250) can receive high voltage from a high-voltage transformer and use the received high voltage to generate microwaves.

[0439] The drive motor (286) can be rotated or stopped based on a control command from the control unit (320).

[0440] The drive motor (286) can rotate in a rotational direction corresponding to a control command of the control unit (320). Here, the rotational direction may include a first rotational direction and a second rotational direction opposite to the first rotational direction. The sliding direction of the door (220) can be determined based on the rotational direction of the drive motor (286).

[0441] The drive motor (286) can apply rotational force to the gearbox (285) of the drive assembly (150) when rotating.

[0442] The drive motor (286) can rotate at a rotation angle corresponding to the control command of the control unit (320).

[0443] The second rail section (270) can move a distance corresponding to the rotation angle of the drive motor (286). The rotation angle of the drive motor (286) may be the number of rotations of the drive motor (286).

[0444] The second rail section (270) can move from the lower surface of the main body (200) to the upper surface of the main body (200) or from the upper surface of the main body (200) to the lower surface of the main body (200) based on the rotational direction of the drive motor (286).

[0445] When the second rail section (270) moves from the lower surface of the main body (200) to the upper surface of the main body (200), the door (220) can open the cooking chamber (210). When the second rail section (270) moves from the upper surface of the main body (200) to the lower surface of the main body (200), the door (220) can close the cooking chamber (210).

[0446] The first sensor (292) can detect the opening of the door (220) and transmit an opening signal corresponding to the opening of the door (220) to the control unit (320).

[0447] The second sensor (293) can detect the closure of the door (220) and transmit a closing signal corresponding to the closure of the door (220) to the control unit (320).

[0448] The present embodiment includes both a sensor for detecting the opening of the door and a sensor for detecting the closing of the door, but it is also possible to detect the opening and closing of the door using a single sensor.

[0449] The third sensor (289) can detect the current flowing through the drive motor (286) and transmit current information regarding the detected current to the control unit (320). The current information regarding the detected current may include a current value.

[0450] The third sensor (289) may include a torque sensor that detects the torque of the drive motor (286), and may also include a voltage sensor that detects the voltage of the drive motor (286).

[0451] The cooking appliance is installed in the cooking chamber and may further include a lamp that emits light to control the brightness of the cooking chamber.

[0452] The cooking device may also include one or more heaters (not shown) that apply heat to the cooking chamber (210).

[0453] The cooking appliance may also include a fourth sensor that detects the force applied to the door.

[0454] The fourth sensor may include at least one of a force sensor, an inductive force sensor, a magnetic inductive sensor, a capacitive force sensor, a capacitive sensor, a piezoelectric force sensor, a piezoresistive force sensor, an optical force sensor, a load cell, an accelerometer, a gyroscope, a strain sensor, and a displacement gauge sensor, but the type of the fourth sensor is not limited thereto.

[0455] The communication unit (310) may include various communication circuits for performing wired communication and / or wireless communication with an external device (e.g., server, other cooking appliance).

[0456] The communication unit (310) may include at least one of a short-range communication circuit and a long-range communication circuit.

[0457] The communication unit (310) can transmit data to an external device or receive data from an external device. For example, the communication unit (310) may support cellular communication, wireless local area network, home radio frequency, infrared communication, ultra-wide band communication, Wi-Fi, Wi-Fi Direct, Bluetooth, AD-HOC, and / or Zigbee. The communication technologies supported by the communication unit (310) are not limited to those exemplified.

[0458] The communication unit (310) may also communicate with an external device through an access point (AP).

[0459] The communication unit (310) can transmit fault information of the cooking device in response to a control command from the control unit (320), and can also receive fault repair information or fault response information from the server.

[0460] The control unit (320) can be electrically connected to various components of the cooking appliance equipped with an exhaust device and can control various components. That is, the control unit (320) can control the overall operation of the cooking appliance (2) equipped with an exhaust device.

[0461] The control unit (320) can control the operation of the cooking device (2) based on user input received by the input unit (231).

[0462] The control unit (320) can control the operation of the magnetron (250) based on a cooking start command received through the input unit (231).

[0463] The control unit (320) can control a high-voltage transformer that applies a high voltage to the magnetron (250) when controlling the magnetron (250).

[0464] The control unit (320) can control the output of the magnetron (250) based on the target cooking temperature received through the input unit (231), and can determine the operating time of the magnetron based on the cooking time received through the input unit (231).

[0465] The control unit (320) can stop the operation of the magnetron (250) based on a cooking pause command or cooking end command received through the input unit (231).

[0466] If a door opening button and a door closing button are provided in the input unit (231), the control unit (320) can control the rotation of the drive motor (286) based on the door opening command or door closing command received through the input unit (231).

[0467] When a door control button is provided in the input unit (231), the control unit (320) can recognize the reception of an open / close command when an input signal from the door control button is received while the door is open, and recognize the reception of an open / open command when an input signal from the door control button is received while the door is closed.

[0468] The control unit (320) can control the drive motor (286) so that the rotation angle of the drive motor (286) reaches a reference rotation angle based on the reception of a door opening command, and can control the drive motor (286) so that the rotation angle of the drive motor (286) reaches a reference rotation angle based on the reception of a door closing command.

[0469] The distance traveled by the second rail section (270) by the first and second rail gears (282, 283) when the door (220) is opened may be the same as the distance traveled by the second rail section (270) by the first and second rail gears (282, 283) when the door is closed. That is, the rotation angle of the drive motor (286) corresponding to the distance traveled by the second rail section (270) when the door (220) is opened and closed may be the same.

[0470] The control unit (320) can control the drive motor (286) to rotate in a first rotational direction based on the reception of a door opening command, and control the drive motor (286) to rotate in a second rotational direction based on the reception of a door closing command.

[0471] The control unit (320) can recognize the rotation angle of the drive motor (286) based on position information received from a position sensor (not shown). As an example, the position sensor may include a Hall sensor.

[0472] The control unit (320) may also control the rotation of the drive motor (286) based on a reference rotation speed and a reference rotation time when the door is opened or closed.

[0473] The control unit (320) recognizes whether the magnetron (250) is operating based on the reception of a door opening command and can stop the magnetron (250) based on the fact that the magnetron (250) is operating.

[0474] The control unit (320) may also stop the operation of the magnetron based on receiving an open signal from the first sensor (292).

[0475] The control unit (320) may also control the magnetron to a standby state where operation is possible based on receiving a closing signal from the second sensor (293).

[0476] The control unit (320) can control at least one of the display unit (232) and the speaker (233) to output status information of the door corresponding to the opening and closing of the door.

[0477] The control unit (320) can control at least one of the display unit (232) and the speaker (233) to output warning information that the user should pay attention to when the door is opened and the door is closed.

[0478] If one or more heaters are provided in the cooking device (2), the control unit (320) may also control one or more heaters based on cooking mode information and cooking start command received through the input unit (231).

[0479] The control unit (320) can control the output unit (232) so that output information related to the operation of the cooking device (2) is output.

[0480] The control unit (320) can control the output unit (232) to output information about the cooking mode, target cooking temperature, and cooking time.

[0481] The control unit (320) can recognize the load state of the drive motor (286) when the door is opened or closed, and can stop the rotation of the drive motor based on whether the load state of the drive motor is an overload state.

[0482] The control unit (320) can stop the rotation of the drive motor (286) and store the rotation direction and rotation angle of the drive motor (286) when the load condition of the drive motor (286) is recognized as an overload condition while controlling the rotation of the drive motor (286) for opening or closing the door.

[0483] The control unit (320) can control at least one of the display unit (232) and the speaker (233) to output guidance information corresponding to the overload condition of the drive motor. For example, the control unit (320) can control the display unit (232) to display guidance information requesting confirmation of foreign matter being caught between the door and the main body.

[0484] The control unit (320) may also control the rotation of the drive motor (286) based on receiving foreign matter removal information from the input unit (231).

[0485] The control unit (320) can count the stop time of the drive motor (286) based on the fact that the load state of the drive motor (286) is an overload state, and control the rotation of the drive motor (286) based on the fact that the counted stop time of the drive motor (286) reaches a reference time.

[0486] The control unit (320) can control the rotation of the drive motor (286) based on the stored rotation direction and rotation angle.

[0487] The overload recognition configuration of the drive motor is explained in more detail.

[0488] When at least one limiter is provided in the driving assembly (280) of the cooking device, the control unit (320) recognizes whether the load state of the driving motor (286) is an overload state or a normal load state based on current information received from the third sensor (289).

[0489] The control unit (320) recognizes whether the current value of the drive motor falls within a reference current range based on current information received from the third sensor (289), and if the current value of the drive motor (286) is recognized as falling within the reference current range, the load state of the drive motor (286) can be recognized as a normal load state. The reference current range may include current values ​​between a minimum reference current value and a maximum reference current value.

[0490] The control unit (320) can recognize the load state of the drive motor (286) as an overload state based on the fact that the current value of the drive motor (286) exceeds the maximum reference current value.

[0491] If a limiter is not provided in the driving assembly (280) of the cooking appliance, the control unit (320) can recognize whether the cause of the overload of the driving motor (286) is due to the force of the user, a malfunction of the cooking appliance, or the jamming of foreign matter in the door when the load state of the driving motor (286) is recognized as an overload state.

[0492] More specifically, when the load state of the drive motor (286) is recognized as an overload state, the control unit (320) recognizes whether the force applied to the door (220) is greater than or equal to a reference size based on the force magnitude information received from the fourth sensor (not shown), and recognizes the overload state of the drive motor (286) as an overload state caused by the user's force based on the recognition that the force applied to the door (220) is greater than or equal to the reference size, and recognizes the cause of the overload state of the drive motor (286) as a malfunction of the cooking device or jamming of foreign matter based on the recognition that the force applied to the door (220) is less than the reference size.

[0493] The control unit (320) can control at least one of the display unit (232) and the speaker (233) to output request information requesting input regarding the state of the door to recognize the cause of the overload state of the drive motor (286) when the cause of the overload state of the drive motor is recognized as being due to a malfunction of the cooking appliance or the jamming of foreign matter. Here, the state of the door may include a state corresponding to whether or not foreign matter is jammed.

[0494] The control unit (320) can control at least one of the display unit (232) and the speaker (233) to recognize the load state of the drive motor (286) and output guidance information regarding the overload state of the drive motor (286) again based on the fact that the load state of the drive motor (286) is an overload state when stopping the drive motor (286) and then controlling the drive motor (286) to rotate again.

[0495] The control unit (320) can stop the drive motor (286) based on the fact that the load state of the drive motor (286) is an overload state, and then control the drive motor (286) to rotate again, recognize the load state of the drive motor (286), and complete the opening or closing of the door (220) based on the fact that the load state of the drive motor (286) is recognized as a normal state.

[0496] The control unit (320) can recognize that the door is fully opened based on the rotation angle of the drive motor rotating in the first rotation direction reaching the reference rotation angle when controlling the opening of the door, and can recognize that the door is fully closed based on the rotation angle of the drive motor rotating in the second rotation direction reaching the reference rotation angle when controlling the closing of the door.

[0497] The cooking appliance may further include a fifth sensor (not shown) for detecting the completion of opening the door. In this case, the control unit (320) may recognize the completion of opening the door based on the opening completion signal received from the fifth sensor.

[0498] The control unit (320) can recognize whether the closing signal of the second sensor (293) is received based on the recognition that the closing of the door is complete.

[0499] When the control unit (320) recognizes that the door (220) has been closed, and receives a closing signal from the second sensor (293), it can recognize the second sensor (293) and the drive motor (286) as being in a normal state.

[0500] The control unit (320) can control at least one of the display unit (232) and the speaker (233) to output request information requesting input regarding the state of the door when a closing signal is not received from the second sensor (293) based on the recognition that the closing of the door (220) is complete.

[0501] Inputs regarding the state of the door may include the door's closed state, the door's open state, and the door's partially open state.

[0502] The control unit (320) can recognize a failure of the second sensor (293) based on the fact that a closing signal is not received from the second sensor (293) and information regarding the door's closing status is received through the input unit (231).

[0503] The control unit (320) can recognize a failure of the drive motor (286) based on the fact that a closing signal is not received from the second sensor (293) and information regarding the door's open state or the door's partially open state is received through the input unit (231).

[0504] The control unit (320) can recognize whether the opening signal of the first sensor (292) is received based on the recognition that the door is completed opening.

[0505] The control unit (320) can recognize that the first sensor (292) is faulty if it does not receive an opening signal from the first sensor (292) based on the recognition that the door (220) is fully opened.

[0506] When the control unit (320) recognizes that the door (220) has been opened, if an opening signal is received from the first sensor (292), the control unit (320) can recognize the first sensor (292) as being in a normal state.

[0507] When the control unit (320) recognizes that the door (220) has been opened, it can recognize the first sensor (292) as being in a normal state when an opening signal is received from the first sensor (292) and information regarding the door's opening state is received through the input unit.

[0508] While the first sensor (292) is controlling the opening of the door in a normal state, the control unit (320) can continuously receive an opening signal.

[0509] When an opening signal is received from the first sensor (292) at the time of recognition that the opening of the door (220) is complete, there may be a possibility of failure of the faulty motor (286). Here, the failure of the faulty motor (286) may include a failure of the drive assembly (280).

[0510] To explain this with an example, the control unit (320) recognizes the state of the door as the completed opening state of the door (220) based on the rotation angle of the drive motor (286), but there may actually be a state where the door (220) is stopped in the middle area of ​​the main body (220). At this time, the control unit (320) may receive an opening signal from the first sensor (292).

[0511] Accordingly, when the state of the door is recognized as the door (220) being in the open state, the control unit (320) can control at least one of the display unit (232) and the speaker (233) to output request information requesting an input to check whether the drive motor (286) is faulty when an open signal is received from the first sensor (292).

[0512] The control unit (320) can recognize a failure of the drive motor (286) based on receiving an opening signal from the first sensor (292) and receiving information about the partially open state of the door through the input unit (231).

[0513] When the control unit (320) determines that the cooking appliance is malfunctioning, it can control at least one of the display unit (232) and the speaker (233) to output malfunction information, and can control at least one of the display unit (232) and the speaker (233) to output guidance information about the malfunction.

[0514] Information regarding malfunctions may include malfunction response information, malfunction warning information and malfunction resolution information, and information on receiving malfunction service requests via telephone or the internet.

[0515] When the control unit (320) receives a transmission command for fault service application information through the input unit (231), it can control the communication unit (230) to transmit fault service application information, user identification information, cooking device identification information, and cooking device fault information to the server.

[0516] The control unit (320) can control at least one of the display unit (232) and the speaker (233) to display fault response information or fault service reception information received from the server.

[0517] The control unit (320) may include at least one processor (320) for controlling the operation of the cooking device (2) and at least one memory (322) for storing a program and data for controlling the operation of the cooking device (2).

[0518] At least one processor (321) may include an algorithm for controlling the operation of internal components of the first cooking device (2), at least one memory for storing data in the form of a program, and one or more processor chips that perform the aforementioned operation using the data stored in at least one memory, or one or more processing cores.

[0519] At least one processor (321) can process various data and various signals using instructions, data, programs and / or software stored in memory (322).

[0520] At least one processor (321) may include one or more of a CPU (Central Processing Unit), GPU (Graphics Processing Unit), APU (Accelerated Processing Unit), MIC (Many Integrated Core), DSP (Digital Signal Processor), NPU (Neural Processing Unit), hardware accelerator, or machine learning accelerator.

[0521] The memory (322) can store information about a reference current range, a minimum reference current value, and a maximum reference current value for recognizing the overload condition of the drive motor.

[0522] The memory (322) can store information about the rotation direction of the drive motor (286) corresponding to the opening and closing of the door.

[0523] The memory (322) can store information about the reference rotation angle of the drive motor (286) for opening and closing the door.

[0524] The memory (322) can store identification information of the first sensor and identification information of the second sensor.

[0525] The memory (322) can store user identification information and cooking device identification information.

[0526] The memory (322) can store information about the failure.

[0527] The memory (322) can store data required for various embodiments.

[0528] The memory (322) may be implemented in the form of a memory embedded in the cooking device (2) or in the form of a memory that can be attached to and detached from the cooking device (2), depending on the purpose of data storage. For example, data for operating the cooking device (2) may be stored in a memory embedded in the cooking device (2), and data for the expansion function of the cooking device (2) may be stored in a memory that can be attached to and detached from the cooking device (2).

[0529] Meanwhile, the memory embedded in the cooking device (2) can be implemented as at least one of volatile memory (e.g., DRAM (dynamic RAM), SRAM (static RAM), or SDRAM (synchronous dynamic RAM), non-volatile memory (e.g., OTPROM (one time programmable ROM), PROM (programmable ROM), EPROM (erasable and programmable ROM), EEPROM (electrically erasable and programmable ROM), mask ROM, flash ROM, flash memory (e.g., NAND flash or NOR flash), hard drive, or solid state drive (SSD).

[0530] In addition, the memory that can be attached to and detached from the cooking device (2) may be implemented in the form of a memory card (e.g., CF (compact flash), SD (secure digital), Micro-SD (micro secure digital), Mini-SD (mini secure digital), xD (extreme digital), MMC (multi-media card), etc.) or an external memory that can be connected to a USB port (e.g., USB memory), but is not limited thereto.

[0531] The memory (322) may include one or more memory chips or one or more memory blocks.

[0532] At least one component may be added or removed in response to the performance of the components of the cooking device (2) illustrated in FIG. 13. Additionally, it will be readily understood by those skilled in the art that the relative positions of the components may be changed in response to the performance or structure of the cooking device (2).

[0533] Each component illustrated in Fig. 13 refers to a software and / or hardware component such as a Field Programmable Gate Array (FPGA) and an Application Specific Integrated Circuit (ASIC).

[0534] FIG. 14 is a flowchart of the door opening control sequence of a cooking appliance according to an embodiment of the present disclosure.

[0535] The cooking device recognizes whether a door opening command is received through the input unit (231) (341).

[0536] The cooking device recognizes whether the magnetron is in an operating state based on receiving a door opening command through the input unit (231) (342).

[0537] The cooking device can stop the operation of the magnetron based on whether the magnetron is in an operating state (343). Here, stopping the operation of the magnetron can cut off the power applied to the magnetron.

[0538] The cooking device controls the rotation of the drive motor (286) in the first rotational direction based on the fact that the magnetron is in a stationary state (344).

[0539] Rotating the drive motor (286) in the first rotational direction may include controlling the drive motor (286) in the first rotational direction by a reference rotational angle.

[0540] The reference rotation angle of the drive motor (286) is a rotation angle that allows the first and second rail gears (282, 283) to move from the initial position to the end position of the tooth member of the first and second door rails (270a, 270b).

[0541] During door opening control, the cooking appliance can output guidance information guiding the opening of the door through at least one of a display unit (232) and a speaker (233).

[0542] For example, the cooking appliance may output guidance information through at least one of the display unit (232) and speaker (233) to wait without applying manpower to the door while controlling the opening of the door.

[0543] The cooking appliance recognizes the load status of the drive motor (286) while controlling the opening of the door (345).

[0544] The cooking device recognizes whether the current value of the drive motor falls within a reference current range based on current information received from the third sensor (289), and if the current value of the drive motor (286) is recognized as falling within the reference current range, the load state of the drive motor (286) can be recognized as a normal load state. The reference current range may include current values ​​between a minimum reference current value and a maximum reference current value.

[0545] The cooking device can recognize the load state of the drive motor (286) as an overload state based on the current value of the drive motor (286) exceeding the maximum reference current value.

[0546] The cooking appliance recognizes whether the load state of the drive motor (286) is excessive (346) while controlling the opening of the door.

[0547] When the load condition of the drive motor (286) is recognized as an overload condition, the cooking device can stop the rotation of the drive motor (286) (347) and store the rotation direction and rotation angle of the drive motor (286).

[0548] Based on the fact that the load state of the drive motor is recognized as an overload state, the cooking device can output guidance information about the overload state through at least one of the display unit (232) and the speaker (233) (348).

[0549] The cooking device can count the stop time of the drive motor (286) based on the load state of the drive motor (286) being an overload state, and control the rotation of the drive motor (286) based on the counted stop time of the drive motor (286) reaching a reference time (349) (350).

[0550] The cooking device can control the rotation of the drive motor (286) based on the rotation direction and rotation angle stored when the drive motor stops.

[0551] More specifically, the cooking device can control the rotation of the drive motor (286) by the remaining rotation angle based on the rotation angle and reference rotation angle just before the drive motor (286) stops.

[0552] The cooking appliance can recognize that the door is fully opened based on the rotation angle of the drive motor rotating in the first rotation direction reaching the reference rotation angle (351).

[0553] The cooking device can recognize whether it has received an opening signal from the first sensor (292) based on the recognition that the door has been opened (352).

[0554] If the cooking device does not receive an open signal from the first sensor (292), it can recognize that the first sensor (292) is faulty (353).

[0555] When the cooking device receives an opening signal from the first sensor (292), it can control at least one of the display unit (232) and the speaker (233) to output request information for the door status input to check whether the drive motor (286) is faulty (354).

[0556] The cooking device can recognize the first sensor (292) as normal based on receiving an opening signal from the first sensor (292) of the door (220) and receiving information about the door's opening completion state through the input unit (231) (355) (356).

[0557] Receiving information about the completed opening state of the door through the input unit (231) may include receiving information about the partially opened state of the door through the input unit (231).

[0558] The cooking device can recognize a failure of the drive motor (286) based on the fact that an opening signal is received from the first sensor (292) and information regarding the door's opening completion status is not received through the input unit (231) (357).

[0559] When a cooking appliance is determined to be in a state of failure, at least one of the display unit (232) and the speaker (233) can be controlled to output failure information, and at least one of the display unit (232) and the speaker (233) can be controlled to output guidance information about the failure (358).

[0560] Information regarding malfunctions may include malfunction response information, malfunction warning information and malfunction resolution information, and information on receiving malfunction service requests via telephone or the internet.

[0561] When a transmission command for fault service application information is received through the input unit (231), the cooking device can control the communication unit (230) to transmit the fault service application information, user identification information, cooking device identification information, and cooking device fault information to the server.

[0562] The cooking device can control at least one of the display unit (232) and the speaker (233) to display fault response information or fault service reception information received from the server.

[0563] FIG. 15 is a flowchart of the door closing control flowchart of a cooking appliance according to an embodiment of the present disclosure.

[0564] The cooking device recognizes whether a door closing command is received through the input unit (231) (361).

[0565] The cooking device controls the rotation of the drive motor (286) in the second rotation direction based on the reception of a door closing command (362).

[0566] Rotating the drive motor (286) in the second rotation direction may include controlling the drive motor (286) in the second rotation direction by a reference rotation angle.

[0567] The reference rotation angle of the drive motor (286) is a rotation angle that allows the first and second rail gears (282, 283) to move from the end position of the tooth member of the first and second door rails (270a, 270b) to the initial position.

[0568] During the door closing control, the cooking appliance can output guidance information guiding the closing of the door through at least one of the display unit (232) and the speaker (233).

[0569] For example, the cooking appliance may output guidance information through at least one of the display unit (232) and speaker (233) to wait without applying personnel to the door while controlling the door closure.

[0570] The cooking appliance recognizes the load status of the drive motor (286) during the door closing control (363).

[0571] The cooking device can recognize whether the load state of the drive motor is normal or overloaded based on current information received from the third sensor (289).

[0572] The cooking appliance recognizes whether the load state of the drive motor (286) is excessive (364) while controlling the opening of the door.

[0573] When the load condition of the drive motor (286) is recognized as an overload condition, the cooking device can stop the rotation of the drive motor (286) (365) and store the rotation direction and rotation angle of the drive motor (286).

[0574] Based on the fact that the load state of the drive motor is recognized as an overload state, the cooking device can output guidance information about the overload state through at least one of the display unit (232) and the speaker (233) (366).

[0575] The cooking device can count the stop time of the drive motor (286) based on the load state of the drive motor (286) being an overload state, and control the rotation of the drive motor (286) based on the counted stop time of the drive motor (286) reaching a reference time (367) (368).

[0576] The cooking device can control the rotation of the drive motor (286) based on the rotation direction and rotation angle stored when the drive motor stops.

[0577] More specifically, the cooking device can control the rotation of the drive motor (286) by the remaining rotation angle based on the rotation angle and reference rotation angle just before the drive motor (286) stops.

[0578] The cooking appliance can recognize that the door is closed when the rotation angle of the drive motor rotating in the second rotation direction reaches the reference rotation angle (369).

[0579] The cooking device can recognize whether it has received a closing signal from the second sensor (293) based on the recognition that the door is closed (370).

[0580] When the cooking device recognizes that the door (220) is closed, and receives a closing signal from the second sensor (293), the second sensor (293) and the drive motor (286) can be recognized as normal (371).

[0581] When a closing signal is not received from the second sensor (293), the cooking device can control at least one of the display unit (232) and the speaker (233) to output request information requesting input regarding the state of the door (372).

[0582] Inputs regarding the state of the door may include the door's closed state, the door's open state, and the door's partially open state.

[0583] The cooking device can recognize a failure of the second sensor (293) based on the fact that a closing signal is not received from the second sensor (293) and information about the door's closing status is received through the input unit (231) (373) (374).

[0584] The cooking device can recognize a failure of the drive motor (286) based on the fact that a closing signal is not received from the second sensor (293) and information about the door's open state or the door's partially open state is received through the input unit (231) (375).

[0585] Receiving information about the door's open state or partial open state may include not receiving information about the door's closed state.

[0586] When a cooking appliance is determined to be in failure, at least one of the display unit (232) and the speaker (233) can be controlled to output failure information, and at least one of the display unit (232) and the speaker (233) can be controlled to output guidance information about the failure (376).

[0587] When a transmission command for fault service application information is received through the input unit (231), the cooking device can control the communication unit (230) to transmit the fault service application information, user identification information, cooking device identification information, and cooking device fault information to the server.

[0588] The cooking device can control at least one of the display unit (232) and the speaker (233) to display fault response information or fault service reception information received from the server.

[0589] Meanwhile, the disclosed embodiments may be implemented in the form of a recording medium that stores instructions executable by a computer. The instructions may be stored in the form of program code and, when executed by a processor, may generate a program module to perform the operation of the disclosed embodiments. The recording medium may be implemented as a computer-readable recording medium.

[0590] Computer-readable recording media include all types of recording media that store instructions that can be decoded by a computer. Examples include ROM (Read Only Memory), RAM (Random Access Memory), magnetic tape, magnetic disk, flash memory, optical data storage devices, etc.

[0591] As described above, the disclosed embodiments have been explained with reference to the attached drawings. Those skilled in the art will understand that the present invention may be practiced in forms different from the disclosed embodiments without changing the technical spirit or essential features of the invention. The disclosed embodiments are illustrative and should not be interpreted restrictively.

Claims

1. Main body equipped with a cooking chamber; A door provided in the main body and opening or closing the cooking chamber; A first rail portion provided on the main body above; A second rail portion provided in the door and slidably connected to the guide hole of the first rail portion; A driving assembly that applies moving force to the second rail portion; and It includes a control unit that controls the drive assembly in response to the opening and closing of the door, The second rail portion comprises a tooth member including a plurality of first teeth arranged in a first direction and a plurality of second teeth arranged in a second direction perpendicular to the first direction. The above-described driving assembly comprises at least one gear that applies a moving force to the gear member so that the second rail portion moves in the first direction and the second direction, and a driving motor that applies a rotational force to the at least one gear.

2. In paragraph 1, the control unit is, In response to the opening of the above door, the drive motor is controlled to rotate by a reference rotation angle in the first rotation direction, and A cooking appliance that controls the drive motor to rotate by a reference rotation angle in a second rotation direction in response to the closing of the above door.

3. In Paragraph 2, The first tooth among the plurality of second teeth of the plurality of first teeth of the above tooth member is connected to the last tooth among the plurality of first teeth of the above tooth member, and The second rail portion moves in the first direction by the moving force applied to the plurality of first teeth in response to the opening of the door, and then moves in the second direction by the moving force applied to the plurality of second teeth. A cooking device in which the second rail portion moves in the second direction by a moving force applied to the plurality of second teeth in response to the closing of the door, and then moves in the first direction by a moving force applied to the plurality of first teeth.

4. In Paragraph 1, The above first direction is a direction corresponding to the front and rear of the main body, and The above second direction is a cooking device that corresponds to the upper and lower sides of the main body.

5. In Paragraph 1, The first rail portion comprises a first body, a first guide hole provided in the first body, and a first guide pin provided in the first body. A cooking device comprising a second rail portion, a second body, a second guide hole provided in the second body and sliding along a first guide pin of the first rail portion, and a second guide pin provided in the second body and sliding along a first guide hole of the first rail portion.

6. In Paragraph 5, The first guide hole of the first rail portion comprises a first bending hole provided in the first direction and a first straight hole connected to the first bending hole and provided in the second direction. The second guide hole of the second rail portion comprises a second bending hole provided in the first direction and a second straight hole connected to the second bending hole and provided in the second direction. The plurality of first teeth are provided at positions corresponding to the second bending hole, and The above plurality of second teeth are cooking devices provided at positions corresponding to the above second straight holes.

7. In Paragraph 6, It further includes a limiter that disconnects the connection between the drive motor and the second rail part based on the application of a force exceeding a reference size to the door, and connects the drive motor and the second rail part based on the removal of the applied force exceeding the reference size. The above-described drive assembly further comprises a rail gear connected to a toothed member of the second rail portion, a drive gear connected to the rail gear, and a gearbox that transmits the rotational force of the drive motor to the drive gear.

8. In Paragraph 1, A door pin provided in the door, withdrawn from the main body in response to the opening of the door, and inserted into the main body in response to the closing of the door, and A cam that rotates by the insertion or withdrawal of the above door pin, and A first sensor provided in the main body and detecting the open state of the door based on the rotation of the cam, and The interlock assembly further includes a second sensor provided in the main body and detecting the closed state of the door based on the rotation of the cam, and The above second rail portion is a cooking device that moves by a first reference distance corresponding to the length of the door pin when moving in the above first direction.

9. In Paragraph 1, It further includes an input section and a display section, A cooking appliance in which the control unit controls the display unit to stop the rotation of the drive motor and output guidance information regarding the overload state based on the fact that the load state of the drive motor is recognized as an overload state while controlling the rotation of the drive motor for opening or closing the door.

10. In paragraph 9, the control unit is, A cooking appliance that controls the rotation of the drive motor based on the stopping time of the drive motor reaching a reference time.

11. In paragraph 9, the control unit is, A cooking appliance that recognizes the open state or the closed state of the door based on the rotation angle of the drive motor reaching a reference rotation angle.

12. In Clause 11, the control unit is, A cooking device that recognizes whether a closing signal is received from the second sensor based on the completion of closing the door, and recognizes the second sensor as normal based on the reception of a closing signal from the second sensor.

13. In Clause 11, the control unit is, A cooking appliance that controls the display unit to output guidance information requesting input regarding the door status based on the fact that a closing signal is not received from the second sensor, recognizes a failure of the second sensor based on the fact that the door closing state is received through the input unit, recognizes a failure of the drive motor based on the fact that the door opening state is received through the input unit, and controls the display unit to output guidance information regarding the failure of the second sensor or the drive motor.

14. In Clause 11, the control unit is, A cooking device that controls a display unit to recognize whether an opening signal is received from the first sensor based on the completion of opening the door, recognizes the first sensor as faulty based on the non-reception of an opening signal from the first sensor, and outputs guidance information regarding the fault of the first sensor.

15. In Clause 11, the control unit is, A cooking appliance that controls the display unit to output guidance information requesting input regarding the door state based on receiving an opening signal from the first sensor, recognizes the first sensor as normal based on receiving the door opening completion state through the input unit, recognizes the drive motor as faulty based on receiving the door partially open state through the input unit, and controls the display unit to output guidance information regarding the drive motor failure.

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