Cooking appliance

Abstract

This cooking appliance may comprise: a door that is for opening and closing a chamber and includes a locking part; a latch that can move between a first latch position, at which the latch is engaged with the locking part, and a second latch position, at which the latch is disengaged from the locking part; a slider that can move between a first slider position corresponding to the first latch position and a second slider position corresponding to the second latch position; and a pusher that can move to a first pusher position, at which the pusher stops pressing the slider, or a second pusher position, at which the pusher presses the slider. The pusher can move the slider from the first slider position to the second slider position when the pusher moves from the first pusher position to the second pusher position. The slider can move between the first slider position and the second slider position when the pusher is located at the first pusher position.

Description

Cooking appliances

[0001] The present disclosure relates to a cooking appliance.

[0002] A cooking appliance is a device that heats and cooks food or other objects, and can provide various functions related to cooking, such as heating, defrosting, drying, and sterilizing the object. Examples of such cooking appliances include ovens, such as gas ovens or electric ovens, microwave heating devices (hereinafter referred to as microwave ovens), gas ranges, electric ranges, microwave ovens that are combined with hoods (Over The Range, OTR), gas grills, or electric grills.

[0003] An oven is a device that cooks food by directly transferring heat to the food or by heating the interior of the cooking chamber using a heat source such as a heater. A microwave oven cooks food by using high-frequency waves as a heating source, disrupting the molecular arrangement of the food and generating intermolecular frictional heat.

[0004] A cooking appliance includes a cooking chamber for cooking food and a door for opening and closing the cooking chamber. Since the cooking appliance needs to be operated with the cooking chamber closed, it includes a latch device that secures the door in a closed position. The latch of the latch device rotates within the main body and can support or release the door.

[0005] One aspect of the present disclosure provides a cooking appliance having an improved structure that allows the door to open automatically.

[0006] One aspect of the present disclosure provides a cooking appliance having an improved structure that allows a latch to efficiently move its position during the process of opening or closing a door.

[0007] One aspect of the present disclosure provides a cooking appliance having an improved structure that allows the door to be opened manually even when the driving module of the latch device is not operating.

[0008] The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0009] According to one embodiment of the present disclosure, a cooking appliance may include a main body including a cooking chamber, a door for opening and closing the cooking chamber, the door including a door lock, a latch mounted on the main body and movable between a first latch position that engages the door lock and a second latch position that is separated from the door lock when the cooking chamber is closed, a slider connected to the latch and movable between a first slider position corresponding to the first latch position and a second slider position corresponding to the second latch position, and a pusher provided to press the slider, the pusher being movable to a first pusher position that releases pressing of the slider and movable to a second pusher position that presses the slider. The pusher may be configured to move the slider from the first slider position to the second slider position when the pusher moves from the first pusher position to the second pusher position, thereby moving the latch from the first latch position to the second latch position. The slider may be configured to be movable between the first slider position and the second slider position when the pusher is positioned at the first pusher position, thereby correspondingly moving the latch between the first latch position and the second latch position.

[0010] When the slider moves to the first slider position, the slider may be adjacent to the pusher. When the slider moves to the second slider position and the pusher is positioned at the first pusher position, the slider may be spaced from the pusher.

[0011] The pusher may be rotatable from the first pusher position to the second pusher position about the rotational axis of the pusher relative to the main body, and may be rotatable from the second pusher position to the first pusher position.

[0012] The pusher may be configured to rotate in one direction from the first pusher position toward the second pusher position about the rotational axis of the pusher, and to rotate in one direction from the second pusher position toward the first pusher position.

[0013] The pusher may include a plurality of contact portions extending radially from the rotational axis of the pusher and arranged along the rotational direction of the pusher. The plurality of contact portions may be configured such that, as the pusher moves from the first pusher position to the second pusher position, one of the plurality of contact portions contacts the slider and presses the slider from the first slider position toward the second slider position.

[0014] The slider may be configured such that when the slider moves to the first slider position, one end of the slider is adjacent to the pusher and is positioned between a pair of adjacent contact portions among the plurality of contact portions.

[0015] One of the pair of adjacent contact portions may be configured to pressurize the end of the slider as the pusher rotates from the first pusher position to the second pusher position.

[0016] The latch may be configured to move from the second latch position to the first latch position as the pusher moves from the second pusher position to the first pusher position.

[0017] The latch may further include an elastic spring connected to the latch and elastically biased to apply an elastic force to the latch in a direction in which the latch moves from the second latch position to the first latch position.

[0018] The latch may be configured to be rotatable about a rotational axis between the first latch position and the second latch position. As the slider moves from the first slider position to the second slider position, the slider may move toward the rotational axis of the latch. As the slider moves from the second slider position to the first slider position, the slider may move away from the rotational axis of the latch.

[0019] The slider may be linearly movable between the first slider position and the second slider position.

[0020] The cooking appliance may further include a slider guide fixed to the main body and configured to guide the slider so that the slider moves linearly between the first slider position and the second slider position.

[0021] The above cooking appliance may further include a pusher position detection sensor configured to detect a position of the pusher.

[0022] The pusher position detection sensor may include a switch that generates an electrical signal depending on whether the pusher is pressed. When the pusher moves to the first pusher position, the pusher may be spaced from the switch. As the pusher moves from the first pusher position to the second pusher position, the switch may be pressed by the pusher.

[0023] The above cooking appliance may further include a connecting rod connecting the latch and the slider.

[0024] According to one embodiment of the present disclosure, a cooking appliance may include a main body forming a cooking chamber, a door configured to open and close the cooking chamber, a latch disposed on the main body and rotatably provided between a first latch position for supporting the door to prevent opening of the door when the door closes the cooking chamber and a second latch position for releasing the door from being supported so that the door can be opened, a slider disposed on the main body and connected to the latch so as to be movable in conjunction with the position of the latch when the latch rotates between the first latch position and the second latch position, and a pusher disposed on the main body and rotatably provided to a first pusher position for releasing pressure on the slider or a second pusher position for pressing the slider. The slider may be configured to rotate the latch from the first latch position to the second latch position when the pusher moves from the first pusher position to the second pusher position. The slider may be arranged to move away from the pusher as the latch rotates from the first latch position to the second latch position when the pusher is positioned at the first pusher position.

[0025] According to one embodiment of the present disclosure, a cooking appliance may include a main body forming a cooking chamber, a door that is rotatable relative to the main body to open and close the cooking chamber and includes a door lock, a latch that is disposed on the main body and is movable between a first latch position that engages the door lock and a second latch position that is separated from the door lock when the cooking chamber is closed, a driving source that is disposed on the main body and is configured to generate power, and a pusher that is disposed on the main body and is configured to receive power from the driving source and to be movable between a first pusher position and a second pusher position. The pusher may be configured to move the latch from the first latch position to the second latch position when it moves from the first pusher position to the second pusher position. The latch may be configured to be movable between the first latch position and the second latch position when the pusher is positioned at the first pusher position.

[0026] FIG. 1 is a perspective view of a cooking appliance according to one embodiment of the present disclosure.

[0027] FIG. 2 is a front view showing the door of a cooking appliance opened according to one embodiment of the present disclosure.

[0028] FIG. 3 is a drawing illustrating a latch device of a cooking appliance according to one embodiment of the present disclosure.

[0029] FIG. 4 is a drawing illustrating a part of a latch and a door mounted on a main body of a cooking appliance according to one embodiment of the present disclosure.

[0030] FIG. 5 is a drawing showing a part of a main body of a cooking appliance and a latch mounted thereon as viewed from above according to one embodiment of the present disclosure.

[0031] FIG. 6 is a drawing illustrating a driving module and a locking module of a latch device of a cooking appliance according to one embodiment of the present disclosure.

[0032] FIG. 7 is an exploded view of the driving module and locking module of the latch device of the cooking appliance according to one embodiment of the present disclosure.

[0033] FIG. 8 is a drawing showing the configuration of a drive module such as a slider, a connecting rod, and a pusher of a latch device of a cooking appliance according to one embodiment of the present disclosure, as viewed from above.

[0034] FIG. 9 is a drawing showing the appearance of a latch device when the door of a cooking appliance according to one embodiment of the present disclosure is closed.

[0035] FIG. 10 is a drawing illustrating a latch device that operates to open a door of a cooking appliance according to one embodiment of the present disclosure.

[0036] FIG. 11 is a drawing illustrating a latch device that operates to restore a latch of a cooking appliance to its original position after being separated from a door lock according to one embodiment of the present disclosure.

[0037] FIG. 12 is a drawing showing the appearance of a latch device when the door is forcibly opened while the driving module of the cooking appliance according to one embodiment of the present disclosure is not operating.

[0038] FIG. 13 is a drawing illustrating a state in which a latch of a cooking appliance according to one embodiment of the present disclosure is restored to its original position after being separated from a door lock.

[0039] FIG. 14 is a drawing showing the appearance of a latch when the door of a cooking appliance according to one embodiment of the present disclosure is closed.

[0040] FIG. 15 is a drawing showing the appearance of a latch when the door of a cooking appliance according to one embodiment of the present disclosure is closed.

[0041] The embodiments described in this specification and the configurations illustrated in the drawings are merely preferred examples of the disclosed invention, and there may be various modified examples that can replace the embodiments and drawings of this specification at the time of filing of this application.

[0042] Additionally, the same reference numbers or symbols presented in each drawing of this specification represent parts or components that perform substantially the same function.

[0043] In addition, the terminology used in this specification is used to describe embodiments and is not intended to limit and / or restrict the disclosed invention. The singular expression includes plural expression unless the context clearly indicates otherwise. In this specification, the terms "comprise" or "have" and the like are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0044] Additionally, terms including ordinal numbers such as “first,” “second,” etc. used herein may be used to describe various components, but the components are not limited by the terms, and the terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term “and / or” includes any combination of a plurality of related listed items or any item among a plurality of related listed items.

[0045] Additionally, when it is said in this specification that a part is “connected” to another part, this includes not only cases where it is directly connected, but also cases where it is indirectly connected.

[0046] Meanwhile, the terms "upper", "lower", "front", "rear", "left", "right", etc. used in the following description are defined based on the drawings, and the shape and position of each component are not limited by these terms. For example, the terms "upper" and "lower" below may be defined based on the Z direction shown in the drawings, respectively. The terms "front" and "rear" below may be defined based on the X direction shown in the drawings, respectively. The terms "left" and "right" below may be defined based on the Y direction shown in the drawings, respectively.

[0047] Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0048] FIG. 1 is a perspective view of a cooking appliance according to one embodiment of the present disclosure. FIG. 2 is a front view showing the door of a cooking appliance according to one embodiment of the present disclosure open.

[0049] Referring to FIGS. 1 and 2, a cooking appliance (1) according to one embodiment of the present disclosure may include a cooking chamber (20), a main body (10) forming the cooking chamber (20), and a door (30) provided to open and close the cooking chamber (20).

[0050] The main body (10) may include an inner case (12) in which a cooking chamber (20) is formed inside. The inner case (12) may be provided inside an outer case (11) of the main body (10) described later. Specifically, the inner case (12) may be placed inside the outer case (11) and may be coupled to the outer case (11).

[0051] The cooking chamber (20) may be formed to have an open front so that food can be brought in and out. The inner case (12) may include a front opening (12a) formed to be open so that food can be brought in and out of the cooking chamber (20). One side of the main body (10) where the front opening (12a) is formed is defined as the front of the main body (10).

[0052] For example, the inner case (12) can be formed to have a box shape with an open front.

[0053] The inner wall of the inner case (12) may be coated to prevent corrosion of the inner wall of the inner case (12) due to condensation that may occur during the condensation process of water vapor or moisture contained in the food itself. The inner wall of the inner case (12) may be dried by heat generated during the food cooking process.

[0054] Inside the cooking chamber (20), a tray (22) on which food or a container containing food can be placed, and a rack (21) supporting the tray (22) may be provided. For example, the tray (22) may be provided so as to be detachable from the rack (21). For example, the rack (21) may be provided on the left inner wall or the right inner wall of the inner case (12).

[0055] The cooking appliance (1) may include a heater (26) configured to provide heat to the interior of the cooking chamber (20). For example, the heater (26) may include a gas burner configured to generate heat by burning gaseous fuel. However, the type of components included in the cooking appliance (1) to heat food inside the cooking chamber (20) is not limited thereto, and the cooking appliance (1) may include a magnetron (not shown) that emits electromagnetic waves into the interior of the cooking chamber (20) to generate heat by the rotation of water molecules inside the food.

[0056] The cooking appliance (1) may include a convection fan (25) provided to circulate air inside the cooking chamber (20). The convection fan (25) may receive rotational force from a fan motor and rotate to circulate air inside the cooking chamber (20). As the air inside the cooking chamber (20) is circulated by the convection fan (25), heat generated by the heater (26) may be evenly transferred inside the cooking chamber (20). For example, the convection fan (25) may be placed at the rear of the cooking chamber (20), but its location is not limited thereto.

[0057] The cooking appliance (1) may include an outer case (11). Various components of the cooking appliance (1) may be accommodated inside the outer case (11). The outer case (11) may form the exterior of the cooking appliance (1). The outer case (11) may be arranged to surround the upper surface, lower surface, rear surface, left surface, right surface, etc. of the inner case (12) from the outside.

[0058] An insulating material (not shown) may be provided between the inner case (12) and the outer case (11) to prevent heat inside the cooking chamber (20) from being released to the outside of the main body (10). For example, the insulating material may include materials such as glass fiber or asbestos.

[0059] The outer case (11) may include a front frame (11a). The front frame (11a) may be provided at the front portion of the main body (10). The front frame (11a) may form at least a portion of the front of the main body (10). When the door (30) closes the cooking chamber (20), the front frame (11a) may be covered by the door (30).

[0060] The front frame (11a) can be formed in the shape of a frame having an opening. The front frame (11a) can be formed in the shape of a frame surrounding the front opening (12a).

[0061] For example, the inner case (12) can be coupled to the front frame (11a). A portion of the front side of the inner case (12) can be coupled to the front frame (11a).

[0062] In one embodiment, the latch hole (11h) described later may be formed in the front frame (11a).

[0063] The outer case (11) may include a rear panel (11b, see FIG. 3) disposed at the rear of the cooking appliance (1). The rear panel (11b) may form at least a portion of the rear exterior of the cooking appliance (1). Various components, including electrical components such as a gas supply pipe, a printed circuit board for control, a convection fan (25) to be described later, a driving module (200), and a locking module (300), may be mounted on the rear panel (11b).

[0064] The outer case (11) may include a rear cover (11c, see FIG. 3) that covers at least a portion of the rear panel (11b). The rear cover (11c) may cover at least a portion of the rear panel (11b) from the rear. The rear cover (11c) may form at least a portion of the rear exterior of the cooking appliance (1). The rear cover (11c) may be coupled to the rear of the rear panel (11b).

[0065] The rear cover (11c) can protect various components, such as a gas supply pipe, a printed circuit board, a convection fan (25), a driving module (200), and a locking module (300) mounted on the rear panel (11b), from external impact.

[0066] In addition, the outer case (11) may include a left panel forming the left side of the cooking appliance (1), a right panel forming the right side of the cooking appliance (1), a base forming the bottom of the cooking appliance (1), etc.

[0067] The cooking appliance (1) may include an electrical compartment (50, see FIG. 3) provided inside the main body (10) and in which various electrical components are arranged. The electrical compartment (50) may be formed to be separated from the cooking chamber (20). The electrical compartment (50) may be formed on the inside of the outer case (11). The electrical compartment (50) may be formed on the outside of the inner case (12). For example, the electrical compartment (50) may accommodate components such as a printed circuit board on which electronic components for controlling the operation of various components of the cooking appliance (1) are mounted, a cooling fan module, and a lever device to be described later. For example, the electrical compartment (50) may be provided on the upper portion of the main body (10).

[0068] The cooking appliance (1) may include a user interface (60). The user interface (60) may be configured to obtain user input or output information about the cooking appliance (1), such as a cooking mode. For example, the user interface (60) may include an input button (61) provided to obtain user input. For example, the user interface (60) may include a display (62) that displays operation information of the cooking appliance (1). For example, the user interface (60) may include a knob (63).

[0069] For example, the user interface (60) may be mounted on the main body (10). Specifically, the user interface (60) may be mounted on the upper portion of the main body (10). The user interface (60) may be mounted on the front portion of the main body (10). The location of the user interface (60) is not limited thereto, and the user interface (60) may be provided at various locations of the cooking appliance (1), such as the upper portion of the door (30).

[0070] A cooking appliance (1) may include a cooktop (90) on which a cooking vessel containing food may be placed and which is provided to heat the placed cooking vessel. The cooktop (90) may be mounted on a main body (10). Specifically, the cooktop (90) may be mounted on an upper portion of the main body (10). The cooktop (90) may form the upper surface of the cooking appliance (1). For example, as illustrated in FIG. 1, the cooktop (90) may include an induction cooktop having a coil provided therein and configured to heat a cooking vessel with an induced electromagnetic field by flowing a high-frequency current through the coil. Alternatively, for example, the cooktop (90) may include a gas burner cooktop that generates heat by burning gas fuel.

[0071] The door (30) of the cooking appliance (1) may be provided to be rotatable relative to the main body (10) to open and close the cooking chamber (20). For example, the door (30) may be rotatably coupled to the lower portion of the main body (10). The door (30) may be provided to be rotatable around a rotation axis located at the lower portion of the main body (10). As illustrated in FIGS. 1 and 2, the rotation axis of the door (30) may extend in the horizontal direction (Y).

[0072] The door (30) may include a handle (32) that is provided so that a user can grip it to open and close the door (30). In order for the user to easily open and close the door (30), the handle (32) may be positioned adjacent to a part of the door (30) opposite to the rotation axis of the door (30). In FIG. 1, an embodiment in which the handle (32) is provided on the front side of the door (30) is illustrated, but the present invention is not limited thereto, and the handle (32) may be provided at various locations on the door (30). The 'front side of the door (30)' referred to herein means one side of the door (30) in the X direction when the door (30) is closing the cooking compartment (20).

[0073] The door (30) may include a transparent portion (33) that is formed transparently so that a user can see into the inside of the cooking chamber (20) even when the door (30) closes the cooking chamber (20). The transparent portion (33) may include various transparent materials such as glass. For example, the transparent portion (33) may be configured to include a plurality of glass plates that are spaced apart from each other and form an insulating space therebetween so as to prevent heat inside the cooking chamber (20) from being transferred to the outside of the door (30) through the transparent portion (33).

[0074] The cooking appliance (1) may include a hinge (40) connecting the main body (10) and the door (30). The hinge (40) may support the door (30) so as to be rotatable. The hinge (40) may be respectively coupled to the main body (10) and the door (30). The door (30) may be coupled to the main body (10) by the hinge (40).

[0075] For example, the hinge (40) can be mounted on the lower part of the main body (10).

[0076] For example, the hinge (40) may include a pair of hinges (40).

[0077] The cooking appliance (1) described above with reference to FIGS. 1 and 2 is only an example of a cooking appliance according to the concept of the present disclosure, and the concept of the present disclosure is not limited thereto, and the cooking appliance may include various configurations.

[0078] FIG. 3 is a drawing illustrating a latch device of a cooking appliance according to one embodiment of the present disclosure. FIG. 4 is a drawing illustrating a latch and a portion of a door mounted on a main body of a cooking appliance according to one embodiment of the present disclosure.

[0079] Referring to FIGS. 3 and 4, a cooking appliance (1) according to one embodiment of the present disclosure may include a latch device. The latch device may be configured to secure a closed door (30) or automatically open the door (30). The latch device may be configured to support the door (30) in a closed position or to release the door (30) from support and open the door (30).

[0080] In detail, the latch device of the cooking appliance (1) may include a latch (100) and a driving module (200) provided to drive the latch (100).

[0081] The latch (100) may be placed on the main body (10). Specifically, the latch (100) may be placed on the front of the main body (10). The latch (100) may be placed adjacent to the position of the door (30) when the door (30) closes the cooking chamber (20). The latch (100) may be placed on the upper portion of the main body (10).

[0082] A part of the latch (100) may be placed inside the main body (10). Another part of the latch (100) may be placed outside the main body (10). The latch (100) may be installed in the electrical compartment (50), and a part of the latch (100) may protrude outside the electrical compartment (50).

[0083] For example, the latch (100) may penetrate the front part of the main body (10). That is, the latch (100) may penetrate the front frame (11a) and a portion thereof may protrude outside the electrical compartment (50). The front frame (11a) may include a latch hole (11h) formed to be penetrated by the latch (100). The latch hole (11h) may be formed to connect the inside and the outside of the main body (10). The latch hole (11h) may be formed in a shape in which the front frame (11a) is penetrated in the front-back direction (X). When the door (30) closes the cooking compartment (20), the latch hole (11h) may face the door (30). In other words, when the door (30) closes the cooking compartment (20), the latch hole (11h) may be covered by the door (30).

[0084] For example, a latch hole (11h) may be formed on the upper part of the front frame (11a).

[0085] The latch (100) can be mounted on the main body (10). The latch (100) can be supported by the main body (10). The main body (10) can include a latch bracket (13) that supports the latch (100). The latch bracket (13) can be fixed to the main body (10).

[0086] A latch bracket (13) may be provided at the front of the main body (10). The latch bracket (13) may be arranged within the electrical compartment (50). The latch bracket (13) may be arranged adjacent to the front frame (11a). The latch bracket (13) may be arranged adjacent to the latch hole (11h). For example, the latch bracket (13) may be arranged at the rear of the latch hole (11h) and may be arranged at a height approximately corresponding to the latch hole (11h).

[0087] For example, the latch (100) can penetrate the latch bracket (13) and the latch hole (11h), respectively.

[0088] The detailed structure of the latch bracket (13) is described later.

[0089] The latch (100) may be provided to be movable with respect to the main body (10). The latch (100) may be provided to be movable with respect to the latch bracket (13). The latch bracket (13) may support the latch (100) so as to be movable.

[0090] The latch (100) may be configured to support the door (30) or not support the door (30). Specifically, the latch (100) may support the door (30) to prevent the door (30) from being opened when the cooking compartment (20) is closed by the door (30), or may release the door (30) so that the door (30) can be opened. The expression "the latch (100) releases the door (30)" means that the latch (100) is separated from the door (30) and does not support the door (30) that is closing the cooking compartment (20).

[0091] Hereinafter, the position of the latch (100) when the latch (100) supports the door (30) while the cooking chamber (20) is closed is referred to as a first latch position (LP1, see FIGS. 5, 9, etc.). Hereinafter, the position of the latch (100) when the latch (100) releases the door (30) when the cooking chamber (20) is closed is referred to as a second latch position (LP2, see FIGS. 10, 12, etc.). When the door (30) closes the cooking chamber (20), the latch (100) located at the first latch position (LP1) can support the door (30) by being caught by the door (30). When the door (30) closes the cooking chamber (20), the latch (100) moves from the first latch position (LP1) to the second latch position (LP2) and is separated from the door (30), thereby releasing the door (30) from its support, and the door (30) can be opened.

[0092] The latch (100) may be provided to be movable between a first latch position (LP1) and a second latch position (LP2).

[0093] The door (30) may include a door lock (31). When the door (30) closes the cooking compartment (20) and the latch (100) is positioned at the first latch position (LP1), the door lock (31) may be arranged to engage with the latch (100). In other words, the latch (100) may engage with the door lock (31) when it is positioned at the first latch position (LP1) when the cooking compartment (20) is closed. When the latch (100) engages with the door lock (31), the door (30) may be supported by the latch (100) and fixed in a position for closing the cooking compartment (20).

[0094] When the latch (100) moves from the first latch position (LP1) to the second latch position (LP2), the latch (100) can be separated from the door lock (31). When the latch (100) is separated from the door lock (31), the latch (100) can release the door (30) from its support, and the door (30) can be opened.

[0095] The door lock (31) may include, for example, a door hole (31a) formed so that a part of the latch (100) can be inserted, and a lock pin (31b) formed so that the latch (100) can be caught. Specifically, when the door (30) closes the cooking chamber (20), a part of the latch (100) can be inserted into the inner space of the door (30) by penetrating the door hole (31a). A part of the latch (100) inserted into the inner space of the door (30) can be caught by the lock pin (31b) when the latch (100) is positioned at the first latch position (LP1), and can support the lock pin (31b). When the latch (100) moves from the first latch position (LP1) to the second latch position (LP2), the latch (100) can be separated from the lock pin (31b), and when the door (30) rotates in the opening direction, the latch (100) can be detached from the door hole (31a).

[0096] The door hole (31a) may be formed on the inner surface of the door (30), and the lock pin (31b) may be arranged in the inner space of the door (30). The 'inner surface of the door (30)' mentioned here means one surface of the door (30) that faces the main body (10) when the door (30) closes the cooking chamber (20). For example, the door hole (31a) may be provided on the upper portion of the inner surface of the door (30) so as to correspond to the latch hole (11h) provided in the main body (10).

[0097] For example, as shown in FIG. 4, the locking pin (31b) may be formed to have a roughly cylindrical shape, but is not limited thereto, and the locking pin (31b) may have various shapes.

[0098] Unlike the one illustrated in Fig. 4, the door lock (31) may have various structures. For example, the door lock (31) may include a catch structure formed on the edge side of the door hole (31a), and the latch (100) may be provided to catch on the catch structure and support the door (30).

[0099] Alternatively, the above has described an embodiment in which a part of the latch (100) protrudes outside the main body (10) and the door locking portion (31), particularly the locking pin (31b), is provided inside the door (30). However, alternatively, the door locking portion (31) may be formed to protrude from the inner surface of the door (30) toward the main body (10), and in this case, almost the entire latch (100) may be disposed inside the main body (10).

[0100] A detailed description of the structure and operation of the latch (100) will be described later.

[0101] The driving module (200) may be arranged to move the latch (100) relative to the main body (10). Specifically, the driving module (200) may be arranged to move the latch (100) from a first latch position (LP1) to a second latch position (LP2). Alternatively, the driving module (200) may be arranged to move the latch (100) from a second latch position (LP2) to a first latch position (LP1).

[0102] The drive module (200) may be placed in the main body (10). Specifically, the drive module (200) may be placed in the rear portion of the main body (10). For example, the drive module (200) may be mounted on the rear panel (11b) of the main body (10). In this way, when the drive module (200) is placed in the rear portion of the main body (10), a worker who wishes to perform work such as repair, inspection, or parts replacement on the drive module (200) can easily access the drive module (200) by separating the rear cover (11c) from the main body (10), and the convenience of the work may be improved.

[0103] The location of the drive module (200) is not limited thereto, and the drive module (200) may be placed in various locations within the main body (10). For example, the drive module (200) may be placed in the front part of the main body (10).

[0104] The drive module (200) may be placed on the upper part of the main body (10). At least a portion of the drive module (200) may be placed in the electrical compartment (50).

[0105] The drive module (200) can be fixed to the main body (10). For example, the drive module (200) can be fixed to the rear panel (11b) of the main body (10). For example, the drive module (200) can be fastened to the rear panel (11b) by a screw. However, the present invention is not limited thereto, and the drive module (200) can be coupled to various components within the main body (10) and can be fixed to the main body (10) in various ways.

[0106] For example, the drive module (200) may include a drive module bracket (210) that is arranged to be mounted on the main body (10). For example, the drive module bracket (210) may be coupled to the rear panel (11b) and fixed to the main body (10).

[0107] A detailed description of the structure and operation of the drive module (200) will be described later.

[0108] The latch device of the cooking appliance (1) may further include a connecting rod (400). The connecting rod (400) may connect the latch (100) and the driving module (200). Specifically, the connecting rod (400) may connect the latch (100) and a slider (240) of the driving module (200), which will be described later. The slider (240) and the latch (100) are connected by the connecting rod (400), and thus may move in conjunction with each other. The connecting rod (400) may transmit power generated in the driving module (200) to the latch (100).

[0109] For example, the connecting rod (400) may be formed in the shape of a long bar extending in approximately one direction. However, the present invention is not limited thereto, and the connecting rod (400) may have various shapes that connect the latch (100) and the driving module (200) (specifically, the slider (240)).

[0110] For example, the latch (100) and the drive module (200) may be arranged approximately parallel to each other in a horizontal direction. In this case, the connecting rod (400) may extend in a direction approximately parallel to the horizontal direction between the latch (100) and the drive module (200).

[0111] The locking module (300) may be arranged to restrict the latch (100) from moving from a first latch position (LP1) to a second latch position (LP2), or to allow the latch (100) to move from the first latch position (LP1) to the second latch position (LP2). Specifically, the locking module (300) may include a locker (340). The locker (340) may be arranged to restrict the latch (100) from moving from the first latch position (LP1) to the second latch position (LP2), or to allow the latch (100) to move from the first latch position (LP1) to the second latch position (LP2). Depending on the position of the locker (340), the latch (100) may be restricted from moving from the first latch position (LP1) to the second latch position (LP2), or may be allowed to move from the first latch position (LP1) to the second latch position (LP2).

[0112] For example, the locker (340) of the locking module (300) may be arranged to restrict or permit movement of the slider (240) of the drive module (200). The slider (240) may be restricted or permitted to move depending on the position of the locker (340).

[0113] The locking module (300) can be placed on the main body (10). Specifically, the locking module (300) can be placed on the rear portion of the main body (10). For example, the locking module (300) can be mounted on the rear panel (11b) of the main body (10). In this way, when the locking module (300) is placed on the rear portion of the main body (10), a worker who wishes to perform work such as repair, inspection, or parts replacement on the locking module (300) can easily access the locking module (300) by separating the rear cover (11c) from the main body (10), and the convenience of the work can be improved.

[0114] The location of the locking module (300) is not limited thereto, and the locking module (300) may be placed in various locations within the main body (10). For example, the locking module (300) may be placed at the front of the main body (10). However, it is preferable that the locking module (300) be placed adjacent to the driving module (200).

[0115] The locking module (300) may be placed on the upper part of the main body (10). At least a portion of the locking module (300) may be placed in the main body (50).

[0116] The locking module (300) can be fixed to the main body (10). For example, the locking module (300) can be fixed to the rear panel (11b) of the main body (10). For example, the locking module (300) can be fastened to the rear panel (11b) by a screw. However, the present invention is not limited thereto, and the locking module (300) can be coupled to various configurations within the main body (10) and can be fixed to the main body (10) in various ways.

[0117] For example, the locking module (300) may include a locking module bracket (310) that is arranged to be mounted on the main body (10). For example, the locking module bracket (310) may be coupled to the rear panel (11b) and fixed to the main body (10).

[0118] For example, the drive module (200) and the locking module (300) may be arranged approximately perpendicular to each other in the direction (Z). As illustrated in FIG. 3, the locking module (300) may be arranged above the drive module (200). Alternatively, the locking module (300) may be arranged below the drive module (200). Alternatively, the locking module (300) and the drive module (200) may not be arranged perpendicular to each other in the direction (Z) but may be arranged in various ways in the main body (10).

[0119] FIG. 5 is a drawing showing a part of a main body of a cooking appliance and a latch mounted thereon as viewed from above according to one embodiment of the present disclosure.

[0120] Referring to FIG. 5, a latch (100) of a cooking appliance (1) according to one embodiment of the present disclosure may be movably mounted on a main body (10). The latch (100) may be provided to be movable between a first latch position (LP1) and a second latch position (LP2, see FIGS. 10, 12, etc.).

[0121] In detail, the latch (100) may be provided to be rotatable with respect to the main body (10). The latch (100) may be provided to be rotatable between a first latch position (LP1) and a second latch position (LP2) about the rotation axis of the latch (100). Referring to FIG. 5, the latch (100) may rotate counterclockwise from the first latch position (LP1) about the rotation axis of the latch (100) to move to the second latch position (LP2). Conversely, the latch (100) may rotate clockwise from the second latch position (LP2) about the rotation axis of the latch (100) to move to the first latch position (LP1). However, the rotation direction of the latch (100) is merely an example, and the latch (100) may also rotate in a direction opposite to that described above. Hereinafter, the direction in which the latch (100) rotates from the first latch position (LP1) toward the second latch position (LP2) around the rotation axis is referred to as the first rotation direction, and the direction in which the latch (100) rotates from the second latch position (LP2) toward the first latch position (LP1) around the rotation axis is referred to as the second rotation direction. The first rotation direction and the second rotation direction are opposite directions.

[0122] The latch (100) may be arranged to be rotatable between a first latch position (LP1) and a second latch position (LP2) about a latch shaft (101). The rotation axis of the latch (100) may pass through the latch shaft (101).

[0123] For example, the latch shaft (101) can penetrate the latch (100). A hole is formed in the latch (100), and the latch shaft (101) can penetrate the hole formed in the latch (100).

[0124] For example, the latch shaft (101) may have a cylindrical shape having the rotational axis of the latch (100) as its central axis.

[0125] For example, the rotation axis of the latch (100) may be arranged parallel to the vertical direction (Z). The latch shaft (101) may extend in the vertical direction (Z).

[0126] The latch (100) may be provided to be rotatable relative to the latch bracket (13). The latch bracket (13) may rotatably support the latch (100). The latch (100) may be coupled to the latch bracket (13) by a latch shaft (101).

[0127] The latch bracket (13) may include a bracket body (13a) that supports a latch (100). The latch (100) may be mounted on the bracket body (13a). The latch (100) may be rotatably coupled to the bracket body (13a) by a latch shaft (101).

[0128] The bracket body (13a) can be mounted on the outer case (11). The bracket body (13a) can be placed inside the outer case (11). For example, the bracket body (13a) can be placed in the electrical compartment (50). For example, the bracket body (13a) can be coupled to the inner wall of the front frame (11a).

[0129] The latch (100) may include a door support (110) provided to support the door (30). Specifically, when the door (30) closes the cooking chamber (20) and the latch (100) is positioned at the first latch position (LP1), the door support (110) may support the door (30). The door support (110) may support the door (30) by being caught by the door lock (31) of the door (30). The door support (110) may be positioned in front of the lock pin (31b) of the door lock (31) and may support the door (30) by being in contact with the lock pin (31b).

[0130] In contrast, when the door (30) closes the cooking chamber (20), the door support (110) can release the door (30) as the latch (100) rotates from the first latch position (LP1) to the second latch position (LP2). When the latch (100) moves from the first latch position (LP1) to the second latch position (LP2), the door support (110) can release the door (30) by being separated from the door lock (31). The door support (110) can release the door (30) by being separated from the lock pin (31b).

[0131] For example, the door support (110) may be provided at one end of the latch (100). Specifically, the door support (110) may be provided at one end on the front side of the latch (100).

[0132] For example, the door support (110) may have a hook shape formed to be caught on the door lock (31).

[0133] The latch (100) may include an inclined surface (120) that is arranged to contact the door lock (31) when the door (30) is closed. Specifically, the inclined surface (120) may be arranged to be pressed by the lock pin (31b) when the door (30) is closed.

[0134] When the door (30) is closed, the latch (100) can rotate by the inclined surface (120) being pressed by the locking pin (31b). Specifically, when the door (30) is closed, the latch (100) can rotate in the first rotational direction by the inclined surface (120) being pressed by the locking pin (31b), and by the latch (100) rotating in the first rotational direction, the locking pin (31b) can move without being restricted in its path by the latch (100), and the door (30) can be closed smoothly.

[0135] The inclined surface (120) may be provided on one end of the front side of the latch (100). Furthermore, the inclined surface (120) may be positioned forward of the door support (110). The inclined surface (120) may be a part of the latch (100) that first comes into contact with the lock pin (31b) when the door (30) is closed.

[0136] The operation of the latch (100) when the door (30) is closed will be described later with reference to FIGS. 14 and 15.

[0137] The latch device of the cooking appliance (1) may include an elastic spring (102) connected to a latch (100). The elastic spring (102) may be configured to move the latch (100) to a first latch position (LP1). In other words, the elastic spring (102) may be elastically biased to apply an elastic force to the latch (100) in a direction in which the latch (100) moves from the second latch position (LP2) to the first latch position (LP1). For example, when the latch (100) moves from the first latch position (LP1) to the second latch position (LP2), the elastic spring (102) may be deformed and accumulate an elastic force. When the force that positions the latch (100) at the second latch position (LP2) is removed after the latch (100) reaches the second latch position (LP2), the latch (100) can be restored to the first latch position (LP1) by the elastic force accumulated in the elastic spring (102).

[0138] For example, the elastic spring (102) may be a tensile spring. However, the present invention is not limited thereto, and depending on the structure connected to the latch (100), the elastic spring (102) may have various structures such as a compression spring or a torsion spring.

[0139] The elastic spring (102) may have one end connected to the latch (100) and the other end connected to the main body (10). Accordingly, when the latch (100) moves relative to the main body (10), the elastic spring (102) may be deformed. For example, the elastic spring (102) may have one end connected to the latch (100) and the other end connected to the latch bracket (13). The latch bracket (13) may include a spring coupling portion (13d) to which the elastic spring (102) is connected. The elastic spring (102) may be deformed as the distance between the spring coupling portion (13d) and the latch (100) changes.

[0140] For example, the spring coupling portion (13d) can be formed by bending a portion of the bracket body (13a).

[0141] As the latch device includes an elastic spring (102), the latch (100) can move to the second latch position (LP2) and then return to the first latch position (LP1) when the force that positions it at the second latch position (LP2) is removed.

[0142] The main body (10) may include a latch stopper (13b) provided to prevent the latch (100) from further rotating in a second direction from the first latch position (LP1) when the latch (100) reaches the first latch position (LP1). For example, the latch stopper (13b) may be provided on the latch bracket (13). For example, the latch stopper (13b) may be formed by bending a portion of the bracket body (13a).

[0143] The latch stopper (13b) may be arranged to be in contact with the latch (100) located at the first latch position (LP1). The latch stopper (13b) may be located on the side in which the latch (100) rotates in the second rotational direction with respect to the latch (100) located at the first latch position (LP1).

[0144] The latch (100) may include a stopper contact portion (130), and the stopper contact portion (130) may be arranged to contact a latch stopper (13b) when the latch (100) is positioned at the first latch position (LP1). The latch stopper (13b) may be positioned on the second rotational direction side with respect to the stopper contact portion (130) when the latch (100) is positioned at the first latch position (LP1). When the latch (100) rotates from the first latch position (LP1) to the second latch position (LP2), the stopper contact portion (130) can move away from the latch stopper (13b), and when the latch (100) rotates from the second latch position (LP2) to the first latch position (LP1), the stopper contact portion (130) can move closer to the latch stopper (13b).

[0145] In this way, since the latch stopper (13b) is provided in the main body (10), the first latch position (LP1) of the latch (100) can be guided, and when the latch (100) reaches the first latch position (LP1), it can be prevented from further rotating in the second rotational direction. As described above, since the elastic spring (102) can be elastically biased to rotate the latch (100) in the second rotational direction, the combination of the latch stopper (13b) and the elastic spring (102) allows the latch (100) to be stably positioned in the first latch position (LP1) unless a force is applied to position the latch (100) in the second latch position (LP2).

[0146] The latch (100) can be connected to a driving module (200) (more specifically, a slider (240) to be described later) by a connecting rod (400). The latch (100) can be coupled to the connecting rod (400). The latch (100) can be coupled to one end of the connecting rod (400).

[0147] For example, the latch (100) may be rotatably coupled to one end of the connecting rod (400). The latch (100) may be rotatable with respect to one end of the connecting rod (400), thereby preventing the connecting rod (400) from restricting the rotation or resisting the rotation.

[0148] For example, the connecting rod (400) can be coupled to the rear portion of the latch (100).

[0149] For example, the connecting rod (400) may pass through the latch (100) and be hooked to the latch (100). However, this is not limited thereto, and the latch (100) and the connecting rod (400) may be connected by various structures.

[0150] The structure of the latch (100) and the latch bracket (13) supporting the same described above with reference to FIG. 5 is only an example, and the idea of ​​the present disclosure is not limited thereto.

[0151] FIG. 6 is a drawing illustrating a driving module of a latch device of a cooking appliance according to one embodiment of the present disclosure. FIG. 7 is an exploded drawing illustrating a driving module of a latch device of a cooking appliance according to one embodiment of the present disclosure. FIG. 8 is a drawing illustrating components of a driving module, such as a slider, a connecting rod, and a pusher, of a latch device of a cooking appliance according to one embodiment of the present disclosure, as viewed from above.

[0152] Referring to FIGS. 6 to 8, a driving module (200) of a cooking appliance (1) according to one embodiment of the present disclosure may include a pusher (230) configured to move a latch (100) from a first latch position (LP1) to a second latch position (LP2). The driving module (200) may include a slider (240) configured to be movable in conjunction with the latch (100). The pusher (230) may be configured to move the slider (240), and by moving the slider (240), the latch (100) linked to the slider (240) may be moved.

[0153] In detail, the slider (240) may be provided to be movable relative to the main body (10). The slider (240) may be provided to be movable relative to the drive module bracket (210). The slider (240) may be provided to be movable between a first slider position (SP1, see FIG. 8) and a second slider position (SP2, see FIGS. 10 and 12).

[0154] The slider (240) can be connected to the latch (100). The slider (240) is connected to the latch (100) and can be moved between a first slider position (SP1) and a second slider position (SP2) when the latch (100) moves between a first latch position (LP1) and a second latch position (LP2). Here, the first slider position (SP1) is defined as the position of the slider (240) when the latch (100) is positioned at the first latch position (LP1). The second slider position (SP2) is defined as the position of the slider (240) when the latch (100) is positioned at the second latch position (LP2).

[0155] The slider (240) can be connected to the latch (100) via a connecting rod (400). The slider (240) can be coupled to the connecting rod (400). The slider (240) can be coupled to one end of the connecting rod (400).

[0156] For example, the connecting rod (400) can be coupled to the front portion of the slider (240).

[0157] For example, the connecting rod (400) may be hooked to the slider (240) by penetrating the slider (240). Alternatively, for example, the connecting rod (400) may be hooked to the slider (240) by a hook structure (see FIGS. 7 and 8) provided on the slider (240). However, the present invention is not limited thereto, and the slider (240) and the connecting rod (400) may be connected by various structures.

[0158] The slider (240) can be mounted on the drive module bracket (210). The slider (240) can be movably mounted on the drive module bracket (210). The slider (240) can be movably supported by the drive module bracket (210).

[0159] The drive module (200) may include a first slider guide (212) provided to guide the movement of the slider (240). The first slider guide (212) may guide the slider (240) when the slider (240) moves between a first slider position (SP1) and a second slider position (SP2).

[0160] For example, as illustrated in FIGS. 7 and 8, a slider rail (242) may be formed on the slider (240), and a first slider guide (212) may be inserted into the slider rail (242) to guide the movement of the slider (240). For example, the slider rail (242) may be formed in the shape of a slot formed by cutting a portion of the slider (240).

[0161] Alternatively, as an example, a structure may be provided in which the first slider guide (212) has the shape of a rail and a part of the slider (240) is inserted into the first slider guide (212) so that the slider (240) is guided by the first slider guide (212).

[0162] The first slider guide (212) can be fixed to the main body (10). For example, the first slider guide (212) can be provided on the drive module bracket (210).

[0163] The drive module (200) may include a second slider guide (213) provided to guide the movement of the slider (240). The second slider guide (213) may guide the slider (240) when the slider (240) moves between the first slider position (SP1) and the second slider position (SP2).

[0164] The second slider guide (213) can be fixed to the main body (10). For example, the second slider guide (213) can be provided on the drive module bracket (210).

[0165] For example, the second slider guide (213) may have a rib shape that protrudes from one surface of the drive module bracket (210) on which the slider (240) is supported. The second slider guide (213) may contact a side surface of the slider (240) and guide the movement of the slider (240). For example, as illustrated in FIGS. 7 and 8, the second slider guides (213) may be provided as a pair, contacting each of the two sides of the slider (240) and guiding the slider (240).

[0166] The slider (240) may be provided to be linearly movable relative to the main body (10). The slider (240) may be provided to be linearly movable relative to the drive module bracket (210). That is, the slider (240) may be provided to be linearly movable between a first slider position (SP1) and a second slider position (SP2). The first slider guide (212) and the second slider guide (213) may guide the slider (240) so that the slider (240) moves linearly. The slider (240) is guided by the first slider guide (212) and the second slider guide (213) and may move linearly.

[0167] However, the movement path of the slider (240) is not limited thereto, and for example, the slider (240) may be arranged to move along a curved path. In this case, structures such as the second slider guide (213), slider rail (242), etc. may have a curved shape corresponding to the movement path of the slider (240).

[0168] For example, the slider (240) may be coupled to the first slider guide (212) of the drive module bracket (210). Specifically, the slider (240) may be mounted on the drive module bracket (210) by the first slider guide (212) being inserted into the slider rail (242) of the slider (240). At this time, the slider (240) and the first slider guide (212) may be firmly fastened to each other by a fastening member (e.g., a screw, etc.) penetrating the first slider guide (212).

[0169] The pusher (230) may be arranged to pressurize the slider (240). The pusher (230) may be arranged to pressurize the slider (240) to move the slider (240) from the first slider position (SP1) to the second slider position (SP2).

[0170] The pusher (230) may be positioned at a first pusher position (PP1, see FIG. 8). Alternatively, the pusher (230) may be positioned at a second pusher position (PP2, see FIG. 10). The pusher (230) may be configured to be movable to the first pusher position (PP1) or the second pusher position (PP2).

[0171] The pusher (230) may not press the slider (240) when positioned at the first pusher position (PP1). That is, the first pusher position (PP1) is defined as a position where the pusher (230) releases the pressing of the slider (240). In other words, the pusher (230) may release the pressing of the slider (240) to the second slider position (SP2) when positioned at the first pusher position (PP1).

[0172] When the pusher (230) moves from the first pusher position (PP1) to the second pusher position (PP2), the pusher (230) may be arranged to move the slider (240) located at the first slider position (SP1) to the second slider position (SP2). The pusher (230) may move from the first pusher position (PP1) to the second pusher position (PP2) and pressurize one end (241) of the slider (240) adjacent to the pusher (230) to move the slider (240) located at the first slider position (SP1) to the second slider position (SP2). As a result, the latch (100) linked with the slider (240) may move from the first latch position (LP1) to the second latch position (LP2).

[0173] The pusher (230) can release the pressurization of the slider (240) to the second slider position (SP2) when moving from the second pusher position (PP2) to the first pusher position (PP1). As illustrated in FIGS. 7 and 8, the pusher (230) and the slider (240) may be configured separately without being coupled to each other. That is, the slider (240) may be provided to be movable with respect to the pusher (230). Therefore, as described below, even if the pusher (230) is positioned at the first pusher position (PP1) and does not press the slider (240), the slider (240) does not necessarily have to be positioned at the first slider position (SP1), and the slider (240) may be positioned at the second slider position (SP2), and the latch (100) may also be positioned at the second latch position (LP2).

[0174] The first pusher position (PP1) is defined as a position where the pusher (230) does not press the slider (240), and the first pusher position (PP1) of the pusher (230) is not necessarily defined as a single specific position. The second pusher position (PP2) is defined as a position where the pusher (230) presses the slider (240), and the second pusher position (PP2) of the pusher (230) is not necessarily defined as a single specific position. For example, as described below, the pusher (230) may include a plurality of contact portions (231), and the plurality of contact portions (231) may be arranged to press the slider (240) one by one. Accordingly, the position at which any one of the plurality of contact portions (231) presses the slider (240) may be defined as the second pusher position (PP2). Here, the number of second pusher positions (PP2) may correspond to the number of contact portions (231). The first pusher position (PP1) may be defined as a position when none of the plurality of contact portions (231) press the slider (240), and the first pusher position (PP1) may be defined as a position between the second pusher positions (PP2). Here, the number of first pusher positions (PP1) may correspond to the number of areas between the plurality of contact portions (231).

[0175] The pusher (230) may be provided to be rotatable with respect to the main body (10). The pusher (230) may be provided to be rotatable with respect to the driving module bracket (210). The pusher (230) may be provided to be rotatable around a rotational axis (230a) of the pusher (230). For example, the rotational axis (230a) of the pusher (230) may extend parallel to the vertical direction (Z), but the direction in which the rotational axis (230a) of the pusher (230) extends is not limited thereto. The pusher (230) may rotate from a first pusher position (PP1) to a second pusher position (PP2) around the rotational axis (230a). Alternatively, the pusher (230) may rotate from a second pusher position (PP2) to a first pusher position (PP1) around the rotational axis (230a).

[0176] For example, the pusher (230) may be arranged to rotate in one direction around the rotation axis (230a). That is, the direction in which the pusher (230) rotates from the first pusher position (PP1) toward the second pusher position (PP2) and the direction in which the pusher (230) rotates from the second pusher position (PP2) toward the first pusher position (PP1) may be the same. Hereinafter, the direction in which the pusher (230) rotates around the rotation axis (230a) is referred to as the “pusher rotation direction.”

[0177] The pusher (230) may include a contact portion (231) arranged to press the slider (240) when the pusher (230) rotates from a first pusher position (PP1) to a second pusher position (PP2). The contact portion (231) may be arranged to contact the slider (240) when the pusher (230) rotates from the first pusher position (PP1) to the second pusher position (PP2) and press the slider (240) from the first slider position (SP1) to the second slider position (SP2).

[0178] For example, the contact portion (231) may extend in the radial direction of the pusher (230) from the rotation axis (230a) of the pusher (230).

[0179] The pusher (230) may include a plurality of contact portions (231). When the pusher (230) rotates from a first pusher position (PP1) to a second pusher position (PP2), at least some of the plurality of contact portions (231) may come into contact with the slider (240) and press the slider (240) to the second slider position (SP2). For example, when the pusher (230) rotates from the first pusher position (PP1) to the second pusher position (PP2), the plurality of contact portions (231) may press the slider (240) to the second slider position (SP2) one by one. The plurality of contact portions (231) may be arranged along the rotational direction of the pusher (230). As the pusher (230) rotates in the pusher rotational direction, the plurality of contact portions (231) may come into contact with the slider (240) in the arranged order and press the slider (240).

[0180] As illustrated in FIG. 8, when the pusher (230) is positioned at the first pusher position (PP1) and the slider (240) is positioned at the first slider position (SP1), the slider (240) can be positioned between a pair of adjacent contact portions (231) among the plurality of contact portions (231). When the pusher (230) rotates in the pusher rotation direction from the first pusher position (PP1) toward the second pusher position (PP2), one of the plurality of contact portions (231) can press the slider (240) to the second slider position (SP2) (see FIG. 10). When the pusher (230) rotates again in the pusher rotation direction from the second pusher position (PP2) so that the pusher (230) reaches the second pusher position (PP2), and if the slider (240) returns to the first slider position (SP1), the slider (240) can be positioned between a pair of adjacent contact portions (231) among the plurality of contact portions (231) again as shown in FIG. 8.

[0181] For example, as illustrated in FIG. 8, a plurality of contact portions (231) may be arranged at regular intervals from each other. The plurality of contact portions (231) may be arranged such that the directions in which each of the plurality of contact portions (231) extends from the rotational axis (230a) have a regular angle (a). Here, the angle (a) refers to the angle between the directions in which each of a pair of adjacent contact portions (231) among the plurality of contact portions (231) extends from the rotational axis (230a). The direction in which each of the contact portions (231) extends from the rotational axis (230a) may be defined as the direction from the rotational axis (230a) toward the outer end of the contact portion (231). Taking the embodiment illustrated in FIG. 8 as an example, the pusher (230) may include three contact portions (231), and the angle (a) between two adjacent contact portions (231) may be approximately 120 degrees. In this structure, the pusher (230) located at the first pusher position (PP1) can be positioned at the first pusher position (PP1) again when it is rotated by the angle (a) in the pusher rotation direction. In addition, the pusher (230) located at the second pusher position (PP2) can be positioned at the second pusher position (PP2) again when it is rotated by the angle (a) in the pusher rotation direction. That is, the pusher (230) can be repeatedly positioned at the first pusher position (PP1) every time it is rotated by the angle (a), and can be repeatedly positioned at the second pusher position (PP2) every time it is rotated by the angle (a).

[0182] By this structure, the pusher (230) can rotate at a constant speed and move to the first pusher position (PP1) or move to the second pusher position (PP2). That is, the pusher (230) can rotate at a constant speed and pressurize or release the pressurization of the slider (240).

[0183] The number of contact portions (231) included in the pusher (230) may be designed differently depending on the rotational speed (rpm) of the first driving source (220) connected to the pusher (230). Specifically, in order to maintain the operating time of the latch (100) within a predetermined range, it is preferable to design the number of contact portions (231) included in the pusher (230) to be larger as the rotational speed (rpm) of the first driving source (220) decreases, and correspondingly, the angle (a) between a pair of adjacent contact portions (231) among the plurality of contact portions (231) may be smaller.

[0184] For example, a plurality of contact portions (231) may be connected to each other and formed as one piece. Alternatively, a plurality of contact portions (231) may be formed separately from each other.

[0185] By this configuration, the pusher (230) can move the slider (240) from the first slider position (SP1) to the second slider position (SP2).

[0186] Unlike the above description, the pusher (230) may be arranged to rotate in one direction from the first pusher position (PP1) toward the second pusher position (PP2) and in another direction opposite to the one direction from the second pusher position (PP2) toward the first pusher position (PP1).

[0187] In order to provide the pusher (230) with power to move relative to the main body (10), the drive module (200) may include a first drive source (220). The first drive source (220) may be configured to generate power. The first drive source (220) may be configured to provide the generated power to the pusher (230).

[0188] For example, the first driving source (220) may include a motor. The first driving source (220) may include various types of motors known in the art.

[0189] For example, the first driving source (220) can receive driving current from a motor driver through a wire or the like.

[0190] The first driving source (220) can be directly or indirectly connected to the pusher (230) to provide power to the pusher (230). For example, the first driving source (220) can be connected to the pusher (230) via the rotor shaft (221). The first driving source (220) can provide power to the pusher (230) via the rotor shaft (221). The pusher (230) can receive power from the rotor shaft (221) and rotate with respect to the main body (10).

[0191] For example, the first driving source (220) may be mounted on the driving module bracket (210). For example, the first driving source (220) may be fixed to one side of the driving module bracket (210), and the pusher (230) may be arranged on the other side of the driving module bracket (210). The pusher (230) may be connected to the first driving source (220) through a rotor shaft (221) that passes through a rotor shaft penetration portion (211) formed in the driving module bracket (210).

[0192] The drive module (200) may include a pusher position detection sensor (250) configured to detect the position of the pusher (230). The pusher position detection sensor (250) may be configured to output an electrical signal corresponding to the position of the pusher (230).

[0193] For example, as illustrated in FIG. 8, the pusher position detection sensor (250) may include a switch (251) that generates an electrical signal depending on whether it is pressed. In other words, the electrical signal output from the pusher position detection sensor (250) when the switch (251) is pressed and the electrical signal output from the pusher position detection sensor (250) when the switch (251) is not pressed may be different from each other. As an example, the pusher position detection sensor (250) may include a micro switch.

[0194] The pusher (230) may pressurize the switch (251) or may not pressurize the switch (251) depending on its position. The pusher (230) may include a cam surface (232) formed along the outer circumference of the pusher (230). The cam surface (232) may pressurize the switch (251) or may not pressurize the switch (251) as the pusher (230) rotates around the rotation axis (230a). For example, the cam surface (232) may be arranged so that when the pusher (230) is positioned at a first pusher position (PP1), it is spaced apart from the switch (251) and does not pressurize the switch (251), and when the pusher (230) is positioned at a second pusher position (PP2), it pressurizes the switch (251). Conversely, the cam face (232) may be arranged to press the switch (251) when the pusher (230) is positioned at the first pusher position (PP1), and to be spaced apart from the switch (251) so as not to press the switch (251) when the pusher (230) is positioned at the second pusher position (PP2).

[0195] In addition, the pusher position detection sensor (250) may include various types of sensors, such as a magnetic field sensor such as a hall sensor, a reed switch, and an optical sensor.

[0196] With this configuration, the pusher position detection sensor (250) can be arranged to detect whether the pusher (230) is positioned at the first pusher position (PP1) or the second pusher position (PP2). The pusher position detection sensor (250) can output an electrical signal regarding the position of the pusher (230), and the control unit of the cooking appliance (1) can control the first driving source (220) based on the electrical signal received from the pusher position detection sensor (250).

[0197] Details on the feature of detecting the position of the pusher (230) using the pusher position detection sensor (250) will be described later.

[0198] By this configuration, the driving module (200) can move the latch (100) from the first latch position (LP1) to the second latch position (LP2) by using the configuration of the first driving source (220), the pusher (230), the slider (240), etc., and the door (30) can be opened. Meanwhile, as described below, the slider (240) can move together with the latch (100) even when the first driving source (220) does not operate and the pusher (230) does not rotate, so that the door (30) can be opened when the user applies sufficient force to the door (30). However, in various cases for the safety of the user, the door (30) may need to be more firmly fixed in the closed position, and for this purpose, the cooking appliance (1) according to one embodiment may include a locking module (300) that is provided to completely lock the door (30) by restricting the movement of the latch (100) and the slider (240).

[0199] The locking module (300) may include a locker (340) configured to restrict movement of the slider (240) or allow movement of the slider (420). Specifically, the locker (340) may restrict movement of the slider (240) from a first slider position (SP1) to a second slider position (SP2), or allow movement of the slider (240) from the first slider position (SP1) to a second slider position (SP2).

[0200] The locker (340) may be provided to be movable with respect to the main body (10). The locker (340) may restrict or allow the slider (240) to move from the first slider position (SP1) to the second slider position (SP2) depending on its relative position with respect to the main body (10). Hereinafter, for convenience, when the locker (340) restricts the movement of the slider (240) as described above, the position of the locker (340) is referred to as a locking position, and when the locker (340) allows the movement of the slider (240) as described above, the position of the locker (340) is referred to as an unlocking position. That is, the locker (340) may be provided to be movable between the locking position and the unlocking position with respect to the main body (10). The locker (340) may be provided to be movable between a locking position and an unlocking position relative to the locking module bracket (310).

[0201] The locker (340) may be arranged to be engaged with the slider (240) when the slider (240) is positioned at the first slider position (SP1) and the locker (340) is positioned at the locking position. The locker (340) may include a locker body (341) and a hook portion (342) protruding from the locker body (341). The hook portion (342) may be arranged to be engaged with the slider (240) when the slider (240) is positioned at the first slider position (SP1) and the locker (340) is positioned at the locking position.

[0202] In detail, the slider (240) may include a catch (243). When the slider (240) is positioned at the first slider position (SP1) and the locker (340) is positioned at the locking position, the hook (342) and the catch (243) may be formed to be in contact with each other. At this time, the hook (342) may be positioned in a direction in which the slider (240) moves from the first slider position (SP1) to the second slider position (SP2) with respect to the catch (243), and thus, the hook (342) may interfere with the catch (243) to restrain the slider (240) from moving to the second slider position (SP2).

[0203] For example, when the slider (240) is positioned at the first slider position (SP1) and the locker (340) is positioned at the locking position, the hook portion (342) can contact the catch portion (243) in front of the catch portion (243) to restrict the movement of the slider (240).

[0204] The hook portion (342) may protrude from one end of the locker body (341). For example, the locker body (341) may extend in one direction, and the hook portion (342) may protrude from one end of the locker body (341) in a direction different from the one direction above.

[0205] For example, the hook portion (342) may protrude horizontally from the front end of the rocker body (341).

[0206] The locking module (300) may include a second driving source (320) that is provided to generate power for the locker (340) to move relative to the main body (10). For example, the second driving source (320) may include a motor. The second driving source (320) may include various types of motors known in the art. For example, the second driving source (320) may receive driving current from a motor driver via a wire or the like.

[0207] For example, the second driving source (320) can be mounted on the locking module bracket (310).

[0208] The locking module (300) may include a locking cam (330). The locking cam (330) may move the locker (340) between a locking position and an unlocking position using power received from a second driving source (320).

[0209] In detail, the locking cam (330) may be provided to be rotatable with respect to the main body (10). The locking cam (330) may be provided to be rotatable with respect to the locking module bracket (310). The locking cam (330) may be provided to be rotatable around a cam rotation axis (330a). For example, the cam rotation axis (330a) may extend approximately parallel to the vertical direction (Z). However, the present invention is not limited thereto, and the cam rotation axis (330a) may extend in various directions.

[0210] The locking cam (330) can receive power generated from the second driving source (320). The locking cam (330) can be provided to be rotatable by the power generated from the second driving source (320). The locking cam (330) can be connected to the rotor shaft of the second driving source (320) to receive power.

[0211] The rotation axis of the locking cam (330) may be arranged parallel to the rotor shaft of the second driving source (320). Furthermore, the rotation axis of the locking cam (330) may be arranged approximately in a straight line with the rotor shaft of the second driving source (320).

[0212] The locker (340) may be connected to a locking cam (330). Specifically, the locking cam (330) may be connected to a locking body (341). The locking body (341) may include a connecting portion (341a) connected to the locking cam (330). The locking cam (330) may include a locking connecting shaft (331) connected to the connecting portion (341a). When the locking cam (330) rotates, the locker (340) may be moved by receiving power through the locking connecting shaft (331).

[0213] The rocker connecting shaft (331) may be parallel to the cam rotation axis (330a). Additionally, the rocker connecting shaft (331) may be arranged spaced apart from the cam rotation axis (330a).

[0214] The locker (340) may be configured to rotate around a locker connecting shaft (331). Accordingly, the rotational axis of the locker (340) may be positioned apart from the cam rotational axis (330a). As a result, the rotational motion of the locking cam (330) may be converted into an approximately linear motion of the locker (340).

[0215] The locking cam (330) may be arranged to rotate in one direction around the cam rotation axis (330a). In other words, when the locker (340) moves from the unlocking position to the locked position, the direction in which the locking cam (330) rotates around the cam rotation axis (330a) may be the same as the direction in which the locker (340) rotates around the cam rotation axis (330a) when the locker (340) moves from the locked position to the unlocking position. The direction in which the locking cam (330) rotates around the cam rotation axis (330a) is referred to as the “cam rotation direction.” For example, as the locking cam (330) rotates in the cam rotation direction around the cam rotation axis (330a), the locker (340) positioned at the unlocking position can move to the locked position. Additionally, as the lock cam (330) rotates in the cam rotation direction around the cam rotation axis (330a), the locker (340) positioned in the locking position can move to the unlocking position.

[0216] In contrast, for example, when the locker (340) moves from the unlocking position to the locking position, the direction in which the locking cam (330) rotates around the cam rotation axis (330a) and when the locker (340) moves from the locking position to the unlocking position, the direction in which the locking cam (330) rotates around the cam rotation axis (330a) may be opposite to each other.

[0217] The locking module (300) may include a cam position detection sensor (350) configured to detect the position of the locking cam (330). The cam position detection sensor (350) may be configured to output an electrical signal corresponding to the position of the locking cam (330).

[0218] For example, the cam position detection sensor (350) may include a switch that generates an electrical signal depending on whether it is pressed. The locking cam (330) may include a cam surface (332) provided on the outer periphery, and as the locking cam (330) rotates, the cam surface (332) may or may not press the switch of the cam position detection sensor (350). Since the position of the locking cam (330) is linked to the position of the rocker (340), the control unit of the cooking appliance (1) may control the second driving source (320) based on the electrical signal received from the cam position detection sensor (350).

[0219] In the above, the driving module (200) and the locking module (300) included in the latch device of the cooking appliance (1) according to one embodiment of the present disclosure have been described with reference to FIGS. 6 to 8. However, unlike the above description, the cooking appliance (1) may not be provided with a locking module (300) including components such as a locker (340) to restrict movement of the latch (100) or the slider (240), in which case the slider (240) of the driving module (200) may not be restricted from moving from the first slider position (SP1) to the second slider position (SP2), and the latch (100) may not be restricted from moving from the first latch position (LP1) to the second latch position (LP2).

[0220] Hereinafter, when describing the operation of the latch device of the cooking appliance (1) according to one embodiment of the present disclosure with reference to FIGS. 9 to 15, the description will be based on a state in which the locker (340) of the locking module (300) unlocks the movement of the slider (240).

[0221] FIG. 9 is a drawing illustrating a latch device when a door of a cooking appliance according to one embodiment of the present disclosure is closed. FIG. 10 is a drawing illustrating a latch device that operates to open a door of a cooking appliance according to one embodiment of the present disclosure. FIG. 11 is a drawing illustrating a latch device that operates to restore a latch of a cooking appliance according to one embodiment of the present disclosure to its original position after being separated from a door locking portion.

[0222] Referring to FIGS. 9 to 11, a cooking appliance (1) according to one embodiment of the present disclosure can be configured so that a door (30) can be automatically opened by the operation of a driving module (200) and a latch (100).

[0223] Referring to Fig. 9, when the door (30) closes the cooking chamber (20) and the latch (100) is positioned at the first latch position (LP1), the latch (100) can support the door (30) from being opened. At this time, the latch (100) may be engaged with the door lock (31).

[0224] In detail, when the door (30) closes the cooking compartment (20) and the latch (100) is positioned at the first latch position (LP1), the latch (100) can contact the locking pin (31b) of the door lock (31). When the door (30) closes the cooking compartment (20) and the latch (100) is positioned at the first latch position (LP1), the latch (100) can contact the front side of the locking pin (31b).

[0225] For example, the door (30) may have a tendency to rotate in the direction in which it opens due to its own weight. Or, for example, the hinge (40) may include a structure (e.g., including an elastic spring, etc.) that applies a force to the door (30) in the direction in which the door (30) opens so that the door (30) can be easily opened. By such a structure, the door (30) may have a tendency to rotate in the direction in which it opens. Accordingly, when the door (30) closes the cooking compartment (20), if the latch (100) is positioned at the first latch position (LP1), the locking pin (31b) provided on the door (30) can come into contact with the latch (100), and thus the latch (100) can support the door (30).

[0226] As described above, when the latch (100) is positioned at the first latch position (LP1), the slider (240) can be positioned at the first slider position (SP1). In one embodiment, when the slider (240) is positioned at the first slider position (SP1), the pusher (230) and the slider (240) can come into contact with each other even if the pusher (230) is positioned at the first pusher position (PP1) and does not press the slider (240). In one embodiment, when the slider (240) is positioned at the first slider position (SP1), one end (241) of the slider (240) can be positioned between a pair of contact portions (231) among the plurality of contact portions (231). In one embodiment, when the slider (240) is positioned at the first slider position (SP1), one end (241) of the slider (240) can come into contact with at least a portion of the plurality of contact portions (231).

[0227] For example, the shape of the end (241) adjacent to the pusher (230) of the slider (240) may be formed to correspond to the area between a pair of contact portions (231) among the plurality of contact portions (231).

[0228] Alternatively, the slider (240) may be positioned apart from the pusher (230) when positioned at the first slider position (SP1), in which case the distance between the slider (240) and the pusher (230) is sufficient to allow the pusher (230) to press the slider (240) as the pusher (230) moves from the first pusher position (PP1) to the second pusher position (PP2).

[0229] As illustrated in FIG. 10, when the pusher (230) rotates from the first pusher position (PP1) to the second pusher position (PP2), the slider (240) is pressed by the pusher (230) and can move from the first slider position (SP1) to the second slider position (SP2).

[0230] For example, the slider (240) may be arranged to be linearly movable between a first slider position (SP1) and a second slider position (SP2).

[0231] For example, the second slider position (SP2) may be positioned forward relative to the first slider position (SP1), and the slider (240) at the first slider position (SP1) may move forward toward the second slider position (SP2).

[0232] For example, the slider (240) may move in a direction closer to the rotational axis of the latch (100) when moving from the first slider position (SP1) to the second slider position (SP2). Conversely, the slider (240) may move in a direction away from the rotational axis of the latch (100) when moving from the second slider position (SP2) to the first slider position (SP1).

[0233] However, the relative position between the first slider position (SP1) and the second slider position (SP2) may vary depending on the connection structure between the latch (100) and the slider (240). For example, unlike as shown in FIGS. 9 to 11, depending on the connection structure between the latch (100) and the slider (240), the first slider position (SP1) may be positioned in front of the second slider position (SP2), and the first slider position (SP1) and the second slider position (SP2) may be positioned parallel to each other in the left-right direction.

[0234] As the slider (240) moves from the first slider position (SP1) to the second slider position (SP2), the latch (100) can move from the first latch position (LP1) to the second latch position (LP2). The latch (100) can be separated from the door lock (31) as it moves to the second latch position (LP2). In this case, as described above, the door (30) may have a tendency to rotate in the opening direction due to its own weight or the like, and thus can open by itself even without a separate external force being applied. Alternatively, the cooking appliance (1) may have a separate structure that induces the opening of the door (30) when the latch (100) moves to the second latch position (LP2).

[0235] While the pusher (230) is positioned at the second pusher position (PP2), the slider (240) is in contact with the pusher (230) and is thus positioned at the second slider position (SP2), and the latch (100) is positioned at the second latch position (LP2).

[0236] As illustrated in Fig. 11, when the door (30) is opened and the pusher (230) moves from the second pusher position (PP2) to the first pusher position (PP1), the latch (100) can return from the second latch position (LP2) to the first latch position (LP1) by the restoring force of the elastic spring (102). The slider (240) connected to the latch (100) can return from the second slider position (SP2) to the first slider position (SP1).

[0237] As described above, the drive module (200) may be provided with a pusher position detection sensor (250). For example, the pusher position detection sensor (250) may include a switch (251) that generates an electrical signal depending on whether it is pressed. The pusher (230) may or may not press the switch (251) depending on its position. The pusher (230) may or may not press the switch (251) while rotating around the rotation axis (230a). Specifically, the cam surface (232) of the pusher (230) may or may not press the switch (251) while the pusher (230) rotates around the rotation axis (230a).

[0238] For example, the circuit of the pusher position detection sensor (250) may be turned ON when the switch (251) is pressed and turned OFF when the switch (251) is not pressed. Or, for example, the circuit of the pusher position detection sensor (250) may be turned ON when the switch (251) is not pressed and turned OFF when the switch (251) is pressed. This may vary depending on how the circuit of the pusher position detection sensor (250) is configured.

[0239] The cam surface (232) of the pusher (230) may include a first region (232a) and a second region (232b) having a radius from the rotation axis (230a) of the pusher (230) that is greater than the first region (232a). The first region (232a) may have a groove shape that is concavely sunken from the second region (232b) toward the rotation axis (230a). The second region (232b) may protrude toward the outer radius of the pusher (230) more than the first region (232a).

[0240] For example, as illustrated in FIG. 9, the pusher (230) may be spaced apart from the switch (251) when positioned at the first pusher position (PP1). That is, the pusher (230) may not press the switch (251) when positioned at the first pusher position (PP1). Specifically, when the pusher (230) is positioned at the first pusher position (PP1), the first area (232a) of the cam surface (232) may face the switch (251), and the first area (232a) may be formed to be spaced apart from the switch (251) and not press the switch (251). Based on the switch (251) not being pressed, the pusher position detection sensor (250) may detect that the pusher (230) is positioned at the first pusher position (PP1). That is, based on the switch (251) not being pressed, the pusher position detection sensor (250) can output an electrical signal corresponding to the pusher (230) being positioned at the first pusher position (PP1). The control unit of the cooking appliance (1) electrically connected to the pusher position detection sensor (250) can identify the position of the pusher (230) based on the electrical signal output from the pusher position detection sensor (250).

[0241] As illustrated in Fig. 10, the control unit can drive the first driving source (220) based on a condition for opening the door (30) (details will be described later). As the first driving source (220) is driven, the pusher (230) can rotate in the pusher rotation direction from the first pusher position (PP1), and the second area (232b) can face the switch (251) and press the switch (251). Based on the pressurization of the switch (251), the pusher position detection sensor (250) can detect that the pusher (230) is rotating from the first pusher position (PP1). That is, based on the pressurization of the switch (251), the pusher position detection sensor (250) can output an electrical signal corresponding to the pusher (230) rotating from the first pusher position (PP1). The control unit of the cooking appliance (1) electrically connected to the pusher position detection sensor (250) can continuously drive the first driving source (220) based on the electrical signal output from the pusher position detection sensor (250). Through this process, the pusher (230) can reach the second pusher position (PP2), and the door (30) can be opened.

[0242] As illustrated in FIG. 11, the pusher (230) may continue to rotate in the pusher rotation direction after reaching the second pusher position (PP2) to reach the first pusher position (PP1). Taking the embodiments of FIGS. 9 to 11 as an example, the pusher (230) may rotate approximately 120 degrees from the first pusher position (PP1) to reach the first pusher position (PP1) again. When the pusher (230) reaches the first pusher position (PP1), the first region (232a) may face the switch (251), and the first region (232a) may be formed so as to be spaced apart from the switch (251) so as not to press the switch (251). Based on the switch (251) not being pressed, the pusher position detection sensor (250) may detect that the pusher (230) is located at the first pusher position (PP1). That is, based on the switch (251) not being pressed, the pusher position detection sensor (250) can output an electrical signal corresponding to the pusher (230) being positioned at the first pusher position (PP1). The control unit of the cooking appliance (1) electrically connected to the pusher position detection sensor (250) can stop the first driving source (220) based on the electrical signal output from the pusher position detection sensor (250), and the pusher (230) can be stopped at the first pusher position (PP1).

[0243] The operation of automatically opening the door (30) described above (hereinafter referred to as the 'door opening operation') can be performed based on the input of a door opening signal, which is a user input for opening the door (30).

[0244] For example, a door opening signal may be input through a user interface (60). The configuration of the user interface (60) capable of receiving the door opening signal may include, but is not limited to, the input button (61) illustrated in FIGS. 1 and 2. The user interface (60) may transmit the input door opening signal to the control unit of the cooking appliance (1).

[0245] Alternatively, as an example, the cooking appliance (1) may include a microphone module capable of detecting sound, and a door opening signal may be input through the microphone module. The microphone module may detect various types of sounds that a user can make using their body, such as the user's voice. The microphone module may transmit the input door opening signal to the control unit of the cooking appliance (1).

[0246] Alternatively, as an example, the cooking appliance (1) may include a motion detection module that detects the user's motion, and a door opening signal may be input through the motion detection module. The motion detection module may include various types of modules capable of detecting the user's motion, such as an infrared sensor, a light sensor, a camera module, etc. The motion detection module may transmit the input door opening signal to the control unit of the cooking appliance (1).

[0247] Alternatively, as an example, the cooking appliance (1) may include a communication module that performs communication with an external electronic device. The communication module may perform communication with the external electronic device using wired communication or wireless communication. The external electronic device may include a user terminal such as a smartphone. The external electronic device may include a server device. The external electronic device may transmit a door opening signal to the communication module of the cooking appliance (1), and the communication module may process the received door opening signal and transmit it to the control unit.

[0248] For example, the door opening operation may be performed under the condition that the door (30) is closed. Specifically, the cooking appliance (1) may include a door opening detection sensor that detects whether the door (30) is open. The door opening detection sensor may output an electrical signal corresponding to the opening or closing of the door (30) and transmit the signal to the control unit of the cooking appliance (1). The control unit of the cooking appliance (1) may perform the door opening operation based on the input of the door opening signal and the closing of the door (30).

[0249] The control unit that receives and processes the door opening signal in this way may be configured as the same module as the control unit that drives the first driving source (220), or may be configured as a separate module.

[0250] Meanwhile, there may be cases where the door (30) must be opened even if the driving module (200) is not driven, simply by the user's intention or by the user's needs. For example, there may be cases where the driving module (200) does not operate due to damage to the first driving source (220) or components of the cooking appliance (1) required to control the first driving source (220), a power supply to the cooking appliance (1) being cut off, or components receiving the user's door opening signal being damaged. In such cases, the door (30) must be able to be opened even without repairing or replacing components. Therefore, in one embodiment, the slider (240) may be configured to be able to move from the first slider position (SP1) to the second slider position (SP2) even without the pressure of the pusher (230).

[0251] FIG. 12 is a drawing illustrating the appearance of a latch device when the door is forcibly opened while the driving module of a cooking appliance according to one embodiment of the present disclosure is not operating. FIG. 13 is a drawing illustrating the appearance of a latch of a cooking appliance according to one embodiment of the present disclosure being restored to its original position after being separated from the door locking part.

[0252] Referring to FIGS. 12 and 13, in a cooking appliance (1) according to one embodiment of the present disclosure, a slider (240) may be provided to be movable relative to a pusher (230). Specifically, the slider (240) may be provided to be movable between a first slider position (SP1) and a second slider position (SP2) when the pusher (230) is positioned at a first pusher position (PP1). The pusher (230) and the slider (240) may be configured to be separate from each other without being coupled to each other, and thus, even when the pusher (230) is positioned at the first pusher position (PP1) and does not press the slider (240), the slider (240) may be provided to be movable between the first slider position (SP1) and the second slider position (SP2).

[0253] The slider (240) may be provided to be movable between a first slider position (SP1) adjacent to the pusher (230) and a second slider position (SP2) spaced apart from the pusher (230) when the pusher (230) is positioned at the first pusher position (PP1). The slider (240) may be moved away from the pusher (230) as the latch (100) moves from the first latch position (LP1) to the second latch position (LP2) when the pusher (230) is positioned at the first pusher position (PP1).

[0254] For example, when a user grips the handle (32) and applies force to the door (30) in the direction in which the door (30) opens, the locking pin (31b) can press the door support (110) of the latch (100) as illustrated in FIG. 12. When the magnitude of the force applied to the door (30) in the direction in which it opens reaches a certain level or more, the latch (100) positioned at the first latch position (LP1) by the locking pin (31b) can rotate in the first rotational direction. For example, as illustrated in FIG. 12, the locking pin (31b) and the latch shaft (101) can be spaced apart from each other in the left-right direction (Y), and the latch (100) can rotate in the first rotational direction about the latch shaft (101) due to the torque generated when the locking pin (31b) presses the door support (110) forward.

[0255] At this time, the slider (240) connected to the latch (100) can move from the first slider position (SP1) toward the second slider position (SP2) as the latch (100) rotates in the first rotational direction even though the pusher (230) is stopped. Therefore, the rotation of the latch (100) in the first rotational direction is not restricted by the slider (240), and the latch (100) can smoothly rotate to the second latch position (LP2). When the latch (100) reaches the second latch position (LP2), the latch (100) can be separated from the door lock (31), and the door (30) can be opened.

[0256] In the case of Fig. 12, the angle at which the latch (100) rotates in the first rotational direction from the first latch position (LP1) toward the second latch position (LP2) may be the minimum angle sufficient for the latch (100) to be separated from the door lock (31). Therefore, the rotation angle of the latch (100) in the case of Fig. 12 may be less than or equal to the rotation angle of the latch (100) in the case of Fig. 10.

[0257] Similarly, in the case of FIG. 12, the distance by which the slider (240) moves from the first slider position (SP1) to the second slider position (SP2) may be less than or equal to the distance by which the slider (240) moves from the first slider position (SP1) to the second slider position (SP2) in the case of FIG. 10.

[0258] As illustrated in Fig. 13, after the door (30) is opened and the latch (100) is completely separated from the door lock (31), the latch (100) can return from the second latch position (LP2) to the first latch position (LP1) by the restoring force of the elastic spring (102). The slider (240) connected to the latch (100) can return from the second slider position (SP2) to the first slider position (SP1).

[0259] In this way, since the slider (240) is configured separately from the pusher (230), even if the first driving source (220) is damaged or power is cut off, the slider (240) can move relative to the main body (10), and thus, the user can manually open the door (30) by applying a certain amount of force to the door (30).

[0260] In addition, since the slider (240) is configured separately from the pusher (230), the slider (240) can move more smoothly with respect to the main body (10), and the latch (100) can move its position more efficiently during the process of opening or closing the door (30). In particular, since the slider (240) can move to the first slider position (SP1) without being restricted by the pusher (230) if the pusher (230) is at the first pusher position (PP1), the latch (100) can also move more smoothly to the first latch position (LP1).

[0261] FIG. 14 is a drawing illustrating the appearance of a latch when the door of a cooking appliance is closed according to one embodiment of the present disclosure. FIG. 15 is a drawing illustrating the appearance of a latch when the door of a cooking appliance is closed according to one embodiment of the present disclosure.

[0262] Referring to FIGS. 14 and 15, in a cooking appliance (1) according to one embodiment of the present disclosure, a latch (100) can be rotated by a door lock (31) when the door (30) is closed.

[0263] For example, when the door (30) is closed, the latch (100) located at the first latch position (LP1) may be pressed by the locking pin (31b) to rotate in the first rotational direction. Specifically, the latch (100) may include an inclined surface (120) provided at the front end of the latch (100), and the locking pin (31b) may press the inclined surface (120) when the door (30) is closed. The inclined surface (120) may be provided to be inclined with respect to the front-rear direction (X) of the main body (10). As illustrated in FIGS. 14 and 15, when the locking pin (31b) is located to the left with respect to the rotational axis of the latch (100), the inclined surface (120) may extend toward the left side of the main body (10) as it faces rearward. Conversely, when the lock pin (31b) is located to the right with respect to the rotation axis of the latch (100), the inclined surface (120) can extend toward the right side of the main body (10) as it faces rearward.

[0264] By this structure, the latch (100) located at the first latch position (LP1) can efficiently rotate in the first rotation direction by being pressed by the lock pin (31b), and the door (30) can rotate in the closing direction without being restricted by the latch (100).

[0265] When the latch (100) is pressed by the lock pin (31b) and rotates while the door (30) is closing, the slider (240) can move from the first slider position (SP1) toward the second slider position (SP2). Since the slider (240) is configured separately from the pusher (230), even if the pusher (230) does not rotate, the slider (240) can move toward the second slider position (SP2), and the latch (100) can smoothly rotate in the first rotational direction.

[0266] Thereafter, as illustrated in FIG. 15, when the door (30) is closed, the door support (110) of the latch (100) can be inserted into the door lock (31). The latch (100) inserted into the door lock (31) can rotate in the second rotational direction by the restoring force of the elastic spring (102) when it is no longer pressed by the lock pin (31b). The latch (100) can rotate in the second rotational direction to reach the first latch position (LP1), and the door support (110) can support the lock pin (31b) from the front. As a result, the latch (100) can fix the door (30) in the closed position.

[0267] When the latch (100) rotates in the second rotation direction, the slider (240) can move toward the first slider position (SP1). Since the slider (240) is configured separately from the pusher (230), even if the pusher (230) does not rotate, the slider (240) can move toward the first slider position (SP1), and the latch (100) can smoothly rotate in the second rotation direction. That is, the latch (100) can smoothly move to a position supporting the door (30), and the door (30) can efficiently close the cooking chamber (20).

[0268] Unlike what has been described above with reference to FIGS. 1 to 15, in one embodiment, the connecting rod (400) connecting the latch (100) and the slider (240) may not be provided, and the latch (100) and the slider (240) may be directly connected to each other.

[0269] Alternatively, in the embodiments of FIGS. 1 to 15, the slider (240) is configured to transmit power from the pusher (230) to the latch (100), but in another embodiment, in addition to the slider (240), another structure capable of transmitting power from the pusher (230) to the latch (100) may be provided, or the pusher (230) may be configured to directly press the latch (100). That is, the latch (100) may have various structures in which it is moved from the first latch position (LP1) to the second latch position (LP2) when the pusher (230) moves from the first pusher position (PP1) to the second pusher position (PP2), and is provided to be movable between the first latch position (LP1) and the second latch position (LP2) when the pusher (230) is positioned at the first pusher position (PP1).

[0270] In the embodiments of FIGS. 1 to 15, the pusher (230) is configured to rotate around a fixed rotation axis (230a) relative to the main body (10), but is not limited thereto, and the pusher (230) is configured separately from the slider (240) and may have various structures that can move to a position where the slider (240) is pressed or a position where the slider (240) is not pressed.

[0271] While the cooking appliance according to one embodiment of the present disclosure has been described above as being an oven, the concept of the present disclosure is not limited thereto and can be applied to various types of cooking appliances, such as microwave ovens. Furthermore, the concept of the present disclosure can be applied to various types of home appliances and other devices that can employ a latch device configured to support or release a closed door.

[0272] According to one embodiment of the present disclosure, a cooking appliance comprises: a main body (10) forming a cooking chamber (20); a door (30) provided to open and close the cooking chamber (20) and including a door locking part (31); a latch (100) mounted on the main body (10) and provided to be movable between a first latch position (LP1) engaged with the door locking part (31) and a second latch position (LP2) separated from the door locking part (31) when the cooking chamber (20) is closed; a slider (240) connected to the latch (100) and provided to be movable between a first slider position (SP1) when the latch (100) is positioned at the first latch position (LP1) and a second slider position (SP2) when the latch (100) is positioned at the second latch position (LP2); and a pusher (230) provided to press the slider (240), wherein The slider (240) may include a pusher (230) that is provided to be movable to a first pusher position (PP1) that releases the pressure on the slider (240) or a second pusher position (PP2) that presses the slider (240). The pusher (230) may be provided to move the slider (240) from the first slider position (SP1) to the second slider position (SP2) when it moves from the first pusher position (PP1) to the second pusher position (PP2). The slider (240) may be provided to be movable between the first slider position (SP1) and the second slider position (SP2) when the pusher (230) is located at the first pusher position (PP1).

[0273] The above slider (240) may be provided to be movable between the first slider position (SP1) adjacent to the pusher (230) and the second slider position (SP2) spaced apart from the pusher (230) when the pusher (230) is positioned at the first pusher position (PP1).

[0274] The above pusher (230) may be arranged to rotate from the first pusher position (PP1) to the second pusher position (PP2) or to rotate from the second pusher position (PP2) to the first pusher position (PP1) about the rotation axis (230a) with respect to the main body (10).

[0275] The pusher (230) may be arranged to rotate in one direction from the first pusher position (PP1) toward the second pusher position (PP2) about the rotation axis (230a) of the pusher (230), and may be arranged to rotate in one direction from the second pusher position (PP2) toward the first pusher position (PP1) about the rotation axis (230a).

[0276] The pusher (230) may include a plurality of contact portions (231) that extend radially from the rotational axis (203a) of the pusher (230) and are arranged along the rotational direction of the pusher (230). The plurality of contact portions (231) may be arranged so that, when the pusher (230) rotates from the first pusher position (PP1) to the second pusher position (PP2), at least some of the plurality of contact portions (231) come into contact with the slider (240) and press the slider (240) from the first slider position (SP1) to the second slider position (SP2).

[0277] The above slider (240) may be arranged so that, when positioned at the first slider position (SP1), one end (241) adjacent to the pusher (230) is positioned between a pair of adjacent contact portions (231) among the plurality of contact portions (231).

[0278] One of the pair of contact portions (231) may be configured to pressurize the end (241) of the slider (240) when the pusher (230) rotates from the first pusher position (PP1) to the second pusher position (PP2).

[0279] The above latch (100) may be arranged to move from the second latch position (LP2) to the first latch position (LP1) when the pusher (230) moves from the second pusher position (PP2) to the first pusher position (PP1).

[0280] The above cooking appliance may further include an elastic spring (102) connected to the latch (100) and elastically biased to apply an elastic force to the latch (100) in a direction in which the latch (100) moves from the second latch position (LP2) to the first latch position (LP1).

[0281] The latch (100) may be provided to be rotatable between the first latch position (LP1) and the second latch position (LP2) about a rotation axis. The slider (240) may move in a direction closer to the rotation axis of the latch (100) when moving from the first slider position (SP1) to the second slider position (SP2). The slider (240) may move in a direction away from the rotation axis of the latch (100) when moving from the second slider position (SP2) to the first slider position (SP1).

[0282] The above slider (240) can be provided to be linearly movable between the first slider position (SP1) and the second slider position (SP2).

[0283] The above cooking appliance may further include a slider guide (212, 213) that is fixed to the main body (10) and guides the slider (240) so that the slider (240) moves linearly between the first slider position (SP1) and the second slider position (SP2).

[0284] The above cooking appliance may further include a pusher position detection sensor (250) provided to detect the position of the pusher (230).

[0285] The above pusher position detection sensor (250) may include a switch (251) that generates an electrical signal depending on whether or not it is pressed. The pusher (230) may be arranged to be spaced apart from the switch (251) when positioned at the first pusher position (PP1), and to press the switch (251) when moving from the first pusher position (PP1) to the second pusher position (PP2).

[0286] The above cooking appliance may further include a connecting rod (400) connecting the latch (100) and the slider (240).

[0287] According to one embodiment of the present disclosure, a cooking appliance comprises: a main body (10) forming a cooking chamber (20); a door (30) provided to open and close the cooking chamber (20); a latch (100) provided to be rotatable between a first latch position (LP1) for supporting the door (30) to prevent the door (30) from being opened when the door (30) closes the cooking chamber (20) and a second latch position (LP2) for releasing the door (30) so that the door (30) can be opened; a slider (240) provided on the main body (10) and connected to the latch (100) so as to be movable in conjunction with the position of the latch (100) when the latch (100) rotates between the first latch position (LP1) and the second latch position (LP2); and a device (240) provided on the main body (10) for pressing the slider (240). The slider (240) may include a pusher (230) that is arranged to be rotatable to a first pusher position (PP1) that releases the slider or a second pusher position (PP2) that presses the slider (240). The slider (240) may be arranged to rotate the latch (100) from the first latch position (LP1) to the second latch position (LP2) when the pusher (230) moves from the first pusher position (PP1) to the second pusher position (PP2). The slider (240) may be arranged to move away from the pusher (230) as the latch (100) rotates from the first latch position (LP1) to the second latch position (LP2) when the pusher (230) is positioned at the first pusher position (PP1).

[0288] The above slider (240) may be provided to be linearly movable between a position adjacent to the pusher (230) and a position spaced apart from the pusher (230) when the pusher (230) is positioned at the first pusher position (PP1).

[0289] The pusher (230) may include a plurality of contact portions (231) arranged along the rotational direction of the pusher (230) and each extending radially from a rotational axis (230a) of the pusher (230). The plurality of contact portions (231) may be arranged to press the slider (240) when the pusher (230) rotates from the first pusher position (PP1) to the second pusher position (PP2).

[0290] The latch (100) may be arranged to rotate in a first rotational direction from the first latch position (LP1) to move to the second latch position (LP2), and to rotate in a second rotational direction opposite to the first rotational direction from the second latch position (LP2) to move to the first latch position (LP1). The main body (10) may include a latch stopper (13b) arranged to prevent the latch (100) from further rotating in the second rotational direction from the first latch position (LP1).

[0291] A cooking appliance according to one embodiment of the present disclosure may include a main body (10) forming a cooking chamber (20), a door (30) that is rotatable relative to the main body (10) to open and close the cooking chamber (20) and includes a door locking part (31), a latch (100) that is arranged on the main body (10) and is movable between a first latch position (LP1) that engages the door locking part (31) when the cooking chamber (20) is closed and a second latch position (LP2) that is separated from the door locking part (31), a driving source (220) that is arranged on the main body (10) and is provided to generate power, and a pusher (230) that is arranged on the main body (10) and is provided to receive power from the driving source (220) and is movable between a first pusher position (PP1) and a second pusher position (PP2). The pusher (230) may be arranged to move the latch (100) from the first latch position (LP1) to the second latch position (LP2) when moving from the first pusher position (PP1) to the second pusher position (PP2). The latch (100) may be arranged to be movable between the first latch position (LP1) and the second latch position (LP2) when the pusher (230) is positioned at the first pusher position (PP1).

[0292] According to the invention of the present disclosure, a cooking appliance can provide a structure for automatically opening a door, including a slider connected to a latch and a pusher for pressing the slider.

[0293] According to the invention, the cooking appliance is configured such that the slider is separate from the pusher, so that the slider can move more smoothly with respect to the main body, and the latch can efficiently move its position during the process of opening or closing the door.

[0294] According to the idea of ​​the present disclosure, the cooking appliance is configured such that the slider is separate from the pusher, so that even if the drive module does not operate due to reasons such as damage to the drive source or power cut off, the slider can move relative to the main body, and thus the user can manually open the door even if the drive module does not operate.

[0295] The effects according to the idea of ​​the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the description below.

[0296] The above illustrates and describes specific embodiments. However, the invention is not limited to the above-described embodiments, and those skilled in the art will readily appreciate that various modifications and implementations can be made without departing from the spirit and scope of the invention as set forth in the claims below.

Claims

1. Main body including a cooking compartment; A door for opening and closing the above-mentioned cooking room, the door including a door lock; A latch mounted on the main body and movable between a first latch position engaged with the door lock when the cooking compartment is closed and a second latch position disengaged from the door lock; a slider connected to the latch and movable between a first slider position corresponding to the first latch position and a second slider position corresponding to the second latch position; and A pusher provided to pressurize the slider, the pusher being movable to a first pusher position for releasing the pressurization of the slider and movable to a second pusher position for pressing the slider; The pusher is configured to move the slider from the first slider position to the second slider position when the pusher moves from the first pusher position to the second pusher position, thereby moving the latch from the first latch position to the second latch position; A cooking appliance wherein the slider is configured to be moveable between the first slider position and the second slider position when the pusher is positioned at the first pusher position, thereby correspondingly moving the latch between the first latch position and the second latch position.

2. In paragraph 1, A cooking appliance wherein when the slider moves to the first slider position, the slider is adjacent to the pusher, and when the slider moves to the second slider position and the pusher is located at the first pusher position, the slider moves away from the pusher.

3. In paragraph 1, The above pusher, A cooking appliance capable of rotating from the first pusher position to the second pusher position around the rotational axis of the pusher with respect to the main body, and capable of rotating from the second pusher position to the first pusher position.

4. In paragraph 3, The above pusher, A cooking appliance configured to rotate in one direction from the first pusher position toward the second pusher position about the rotational axis of the pusher, and to rotate in one direction from the second pusher position toward the first pusher position.

5. In paragraph 3, The above pusher includes a plurality of contact portions extending radially from the rotational axis of the pusher and arranged along the rotational direction of the pusher, The above multiple contact parts are, A cooking appliance wherein as the pusher moves from the first pusher position to the second pusher position, one of the plurality of contact portions contacts the slider and is configured to urge the slider from the first slider position toward the second slider position.

6. In paragraph 5, A cooking appliance wherein the slider is configured such that when the slider moves to the first slider position, one end of the slider is adjacent to the pusher and is positioned between a pair of adjacent contact portions among the plurality of contact portions.

7. In paragraph 6, One of the above pair of adjacent contact portions is, A cooking appliance configured to pressurize said one end of said slider as said pusher rotates from said first pusher position to said second pusher position.

8. In paragraph 1, The above latch, A cooking appliance configured to move from the second latch position to the first latch position as the pusher moves from the second pusher position to the first pusher position.

9. In paragraph 8, A cooking appliance further comprising an elastic spring connected to said latch and elastically biased to apply an elastic force to said latch in a direction in which said latch moves from said second latch position to said first latch position.

10. In paragraph 1, The above latch is configured to be rotatable between the first latch position and the second latch position about the rotation axis, As the slider moves from the first slider position to the second slider position, the slider moves toward the rotational axis of the latch, A cooking appliance wherein as the slider moves from the second slider position to the first slider position, the slider moves away from the rotational axis of the latch.

11. In paragraph 1, A cooking appliance wherein the slider is configured to be linearly movable between the first slider position and the second slider position.

12. In paragraph 11, A cooking appliance further comprising a slider guide fixed to the main body and configured to guide the slider so that the slider moves linearly between the first slider position and the second slider position.

13. In paragraph 1, A cooking appliance further comprising a pusher position detection sensor configured to detect a position of the pusher.

14. In paragraph 13, The above pusher position detection sensor includes a switch that generates an electrical signal depending on whether it is pressed by the pusher, When the pusher moves to the first pusher position, the pusher is separated from the switch, A cooking appliance wherein the switch is pressurized by the pusher as the pusher moves from the first pusher position to the second pusher position.

15. In paragraph 1, A cooking appliance further comprising a connecting rod connecting the latch and the slider.

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