Door lock device and cooking electric appliance

Abstract

The invention discloses a door lock device and a cooking electric appliance. The door lock device is used for locking a door body and a shell of the cooking electric appliance, the door lock device comprises a clamping piece and a locking assembly, the clamping piece is used for being installed on the door body, and the clamping piece comprises a first clamping part. The locking assembly comprises a support, a first locking mechanism, a driven piece and a first microswitch, the support is used for being installed on the shell, the driven piece and the first locking mechanism are both movably connected with the support, the first microswitch is arranged on the support, the first locking mechanism is provided with a first clamping groove, and the support is provided with a clamping end; the first clamping part has a first locking state that the first clamping part enters the first clamping groove from the clamping-in end to be connected with the first clamping groove in a clamped mode. When the first clamping part and the first clamping groove are abnormally clamped and do not enter the first clamping groove, the first clamping part and the first abutting part are in the separated state, so that the probability that the driven part is driven by the first clamping part to trigger the first microswitch is reduced, and the probability that the first microswitch is mistakenly triggered is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of household appliances, in particular to a door lock device and a cooking appliance. BACKGROUND

[0002] In the related art, a cooking appliance has a shell and a door body, the shell is provided with a door opening, and the door body is rotatably installed on the shell to cover the door opening. The door body and the shell are locked by a door lock device, and a micro switch is triggered to generate a door closing signal after locking to determine that the door body is locked for subsequent cooking operation. Currently, when the door body is not locked due to locking abnormality, the micro switch is also triggered to generate a door closing signal, which affects the safe use of the cooking appliance. SUMMARY

[0003] In view of the above problems, the present application provides a door lock device and a cooking appliance, which can reduce the probability of the micro switch being triggered by mistake.

[0004] In a first aspect, the present application provides a door lock device for locking a door body and a shell of a cooking appliance, the door lock device comprising:

[0005] A clamping piece for being installed on the door body, the clamping piece comprising a first clamping portion;

[0006] A locking assembly comprising a bracket, a first locking mechanism, a driven piece and a first micro switch, the bracket being installed on the shell, the driven piece and the first locking mechanism being movably connected with the bracket, the first micro switch being arranged on the bracket, the first locking mechanism having a first clamping groove, the bracket being provided with a clamping end, the first clamping portion having a first locking state of entering the first clamping groove from the clamping end and a first unlocking state of exiting the first clamping groove from the clamping end, the driven piece comprising a first abutting portion, at least part of the first abutting portion being located in the first clamping groove, the first locking mechanism being arranged to be driven by the first clamping portion during the switching of the first clamping portion from the first unlocking state to the first locking state, so as to make the first abutting portion move in the first clamping groove, and the first abutting portion being arranged to abut against the first clamping portion when the first clamping portion moves into the first clamping groove, so as to drive the driven piece to move relative to the bracket and trigger the first micro switch.

[0007] During the closing of the door, the first clamping portion abuts against the first abutting portion after moving into the first clamping groove, and with the movement of the first clamping portion in the clamping direction, the driven piece is driven to move relative to the bracket to trigger the first micro switch to generate a door closing signal. When the first clamping portion and the first clamping groove are abnormally clamped and do not enter the first clamping groove, the first clamping portion and the first abutting portion are in a separated state, which reduces the probability of the driven piece being driven by the first clamping portion to trigger the first micro switch, i.e. reduces the probability of the first micro switch being triggered by mistake due to the door body and the shell not being locked.

[0008] In some embodiments of the present application, the first card slot comprises a first portion and a second portion, the first portion and the second portion being in communication, the first card holder has a first locking state of entering the first portion from the card-in end and a first unlocking state of exiting the first portion from the card-in end, when the first card holder moves to the limit position and is located outside the first card slot along the card-in direction of the first card holder, at least part of the first abutting portion is located in the first portion, and when the first card holder is in the first locking state, the first abutting portion is located in the second portion.

[0009] In some embodiments of the present application, the driven member is rotationally connected with the support, an axis of rotation of the driven member relative to the support is a first axis, and the first abutting portion is arranged to rotate in the first card slot about the first axis.

[0010] In some embodiments of the present application, the support has a first limiting portion and a second limiting portion, the driven member comprises a swing arm, the swing arm is connected with the first abutting portion, one side of the swing arm is provided with the first limiting portion along the arrangement direction of the first locking mechanism and the card-in end, the other side of the swing arm is provided with the second limiting portion, the swing arm is arranged to rotate relative to the support about the first axis between the first limiting portion and the second limiting portion, when the first card holder is in the first locking state, the swing arm triggers the first micro switch, and when the first card holder is in the first unlocking state, the swing arm is separated from the first micro switch to release the triggering state of the first micro switch.

[0011] In some embodiments of the present application, the first locking mechanism comprises:

[0012] a first movable member rotationally connected with the support, an axis of rotation of the first movable member relative to the support coincides with the first axis, the first movable member is capable of rotating relative to the driven member, the first movable member has the first card slot, and in the process of switching the first card holder from the first unlocking state to the first locking state, the first movable member is arranged to be driven by the first card holder to rotate relative to the support so as to make the first abutting portion move in the first card slot about the first axis;

[0013] a first elastic member, a first end of the first elastic member is rotationally connected with the support, a second end of the first elastic member is rotationally connected with the first movable member, when the first card holder is in the first unlocking state, the elastic force of the first elastic member has a tendency to slow down the first card holder from entering the first card slot, and when the first card holder is in the first locking state, the elastic force of the first elastic member has a tendency to block the first card holder from separating from the first card slot.

[0014] In some embodiments of this application, the first movable member has a stop limiting portion, and the driven member has a first stop position and a second stop position. Along the rotation direction of the driven member relative to the bracket, the first stop position and the second stop position are spaced apart. The stop limiting portion is located between the first stop position and the second stop position and can move around the first axis between the first stop position and the second stop position to limit the position of rotation of the driven member relative to the first movable member.

[0015] In some embodiments of this application, a first rotation center is provided between the first end and the bracket, a second rotation center is provided between the second end and the first movable member, and a third rotation center is provided between the first movable member and the bracket. On the first cross-section of the first movable member, a straight line passing through the third rotation center and the second rotation center is a first straight line. During the process of the first holding part switching from the first unlocked state to the first locked state, the trajectory curve of the second rotation center intersects with the first straight line, and the axis of rotation of the first movable member relative to the bracket is perpendicular to the first cross-section.

[0016] In some embodiments of this application, the holding part further includes a second holding part, which is spaced apart from the first holding part along a first direction. The second holding part is connected to the mounting part. The locking component further includes a second locking mechanism, which is spaced apart from the first locking mechanism along a first direction. The second locking mechanism includes a second movable member, which is rotatably connected to the bracket. The second movable member has a second slot. The second holding part has a second locked state where it engages with the second slot from the insertion end, and a second unlocked state where it is separated from the second slot. The first direction is perpendicular to the insertion direction of the holding member, and the rotation axis of the second movable member relative to the bracket is perpendicular to the first direction.

[0017] In some embodiments of this application, the second locking mechanism includes:

[0018] The second movable component is rotatably connected to the bracket, and the second movable component has a second slot.

[0019] The second elastic member has a first end connected to the bracket and a second end connected to the second movable member. When the second holding part is in the second unlocked state, the second elastic member has the tendency to slow down the second holding part from entering the second slot. When the second holding part is in the second locked state, the second elastic member has the tendency to slow down the separation of the second holding part from the second slot.

[0020] In some embodiments of this application, a first rotation center is provided between the first connecting end and the bracket, a second rotation center is provided between the second connecting end and the second movable member, and a third rotation center is provided between the second movable member and the bracket. On the second cross-section of the second movable member, a straight line passing through the third rotation center and the first rotation center is a second straight line. During the process of the second holding part switching from the second unlocked state to the second locked state, the trajectory curve of the second rotation center intersects with the second straight line, and the axis of rotation of the second movable member relative to the bracket is perpendicular to the second cross-section.

[0021] In some embodiments of this application, the door lock device further includes a second micro switch, which is disposed on the bracket. When the second latching part is in the locked state, the second movable member triggers the second micro switch.

[0022] In some embodiments of this application, the second locking mechanism further includes a third elastic member disposed on the bracket. When the second holding part is in the second unlocked state, the third elastic member abuts against the second movable member, and the third elastic member is in a compressed state.

[0023] In some embodiments of this application, the first holding part is a hook structure, which includes a hook head and a hook handle. The hook head and the hook handle are connected, and the hook head and the hook handle together define an avoidance groove. When the first holding part is in a first locked state, part of the hook head is located in the first locking groove, and part of the first movable part is located in the avoidance groove.

[0024] In some embodiments of this application, the locking assembly further includes a damping component disposed on the bracket. The damping component is used to provide a damping force to the second movable member to slow down the speed at which the second holding part engages with the second slot.

[0025] In some embodiments of this application, the second movable member has a partially convex arc surface. The axis of rotation of the second movable member relative to the bracket coincides with the axis of the arc surface. The arc surface is provided with a plurality of meshing teeth continuously arranged circumferentially along the arc surface. The damping component includes a damper and a rack. The rack is slidably connected to the bracket along a first direction. The rack meshes with the meshing teeth. Along the length direction of the rack, the rack is configured to be driven and move linearly relative to the bracket. The movable end of the damper abuts against one end of the rack in the length direction.

[0026] In some embodiments of this application, the second movable member includes a rotating hook arm, and the locking assembly further includes a blocking and limiting member. The blocking and limiting member is located on the side of the second movable member having a second slot. The blocking and limiting member is movably mounted on the bracket. The blocking and limiting member has a limiting slot. When the second holding part moves out from the locking end, the limiting slot engages with the rotating hook arm to limit the rotation of the second movable member relative to the bracket. The blocking and limiting member is configured to be driven by the second holding part to separate the limiting slot from the rotating hook arm.

[0027] In some embodiments of this application, the blocking limit member is rotatably connected to the bracket, and the locking assembly further includes a fourth elastic member. The fourth elastic member is located on the side of the blocking limit member away from the second movable member. The fourth elastic member abuts against the bracket and the blocking limit member respectively. When the rotating hook arm is in the latching state, the elastic force of the fourth elastic member can cause the limiting slot to remain in the latching state with the rotating hook arm.

[0028] Secondly, this application provides a cooking appliance, comprising:

[0029] The shell has an interior cavity, and the front end of the shell has a doorway that communicates with the cavity.

[0030] The door body is configured to fit with the doorway cover, with one end of the door body pivotally connected to the housing.

[0031] In the first aspect of the door lock device, the latching member is installed on the door body, and the first latching part extends from the side of the door body toward the doorway. The locking component is installed inside the housing. When the door body is closed with the doorway, the first latching part is in a locked state, and when the door body is in an open state, the first latching part is in an unlocked state.

[0032] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0033] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0034] Figure 1 This is an isometric view of a door lock device in a locked state according to an embodiment of this application;

[0035] Figure 2 This is an exploded view of a door lock device according to an embodiment of this application;

[0036] Figure 3A This is a partial side view of a door lock device according to an embodiment of the present application, showing the first holding portion in a first unlocked state;

[0037] Figure 3B This is a partial side view of a door lock device according to an embodiment of this application, during the engagement process between the first holding part and the first slot;

[0038] Figure 3CThis is a partial side view of a door lock device according to an embodiment of the present application, showing the first holding part in a first locked state;

[0039] Figure 4A This is an axonometric view of the connection between a first movable member and a driven member in a door lock device according to an embodiment of this application;

[0040] Figure 4B This is an axonometric view of the connection between a first movable member and a driven member in a door lock device according to an embodiment of this application;

[0041] Figure 5 This is an isometric view of the first movable member in a door lock device according to an embodiment of this application;

[0042] Figure 6 This is an isometric view of a driven member in a door lock device according to an embodiment of this application;

[0043] Figure 7A This is a side view of a door lock device according to an embodiment of this application, in which the holding member and the locking component are in a separated state;

[0044] Figure 7B This is a side view of a door lock device according to an embodiment of the present application, showing the locking process between the holding member and the locking component;

[0045] Figure 7C This is a side view of a door lock device according to an embodiment of this application after the holding member and the locking component are locked.

[0046] Figure 7D This is a side view of a door lock device according to another embodiment of this application, in which the holding member and the locking component are in a separated state;

[0047] Figure 8A This is an axonometric view from a first perspective of a cooking appliance according to an embodiment of this application.

[0048] Figure 8B This is a partial axonometric view from a second perspective of a cooking appliance according to an embodiment of this application.

[0049] The reference numerals in the detailed embodiments are as follows:

[0050] 1000. Cooking appliances;

[0051] 100. Door locking device;

[0052] 200. Shell;

[0053] 300. Door body;

[0054] 10. Holding component; 11. First holding part; 111. Hook head; 112. Hook handle; 113. Clearance groove; 12. Second holding part; 121. Hook head; 122. Hook rod; 13. Mounting part;

[0055] 20. Locking assembly; 21. Bracket; 211. Snap-in end; 212. First limiting part; 213. Second limiting part; 214. Third limiting part; 22. First locking mechanism; 221. First movable member; 2211. First slot; 22111. First part; 22112. Second part; 2212. Stop limiting part; 222. First elastic member; 2221. First end; 2222. Second end; 23. Second locking mechanism; 231. Second movable member; 2311. Second slot; 23111. Clearance part; 2311 2. First guide surface; 2312. Engaging tooth; 2313. Rotating hook arm; 232. Second elastic element; 2321. First connecting end; 2322. Second connecting end; 233. Third elastic element; 24. Blocking and limiting element; 241. Limiting slot; 242. Second guide surface; 25. Fourth elastic element; 26. Cover plate; 27. First micro switch; 28. Second micro switch; 29. ​​Follower; 291. First abutment part; 292. Swing arm; 2921. First stop position; 2922. Second stop position; 293. Rotating mounting part;

[0056] 30. Damping components; 31. Rack; 32. Damper;

[0057] X, insertion direction; Y, first direction; Z, first straight line; P, second straight line. Detailed Implementation

[0058] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0060] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0061] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0062] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0063] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0064] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0065] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0066] According to the embodiments of this application, please refer to 1- Figure 8BAs shown, a door lock device 100 is proposed for locking the door 300 and housing 200 of a cooking appliance. The door lock device 100 includes a retaining member 10 and a locking assembly 20. The retaining member 10 is used to install on the door 300 and includes a first retaining portion 11. The locking assembly 20 includes a bracket 21, a first locking mechanism 22, a follower 29, and a first micro switch 27. The bracket 21 is used to install on the housing 200. The follower 29 and the first locking mechanism 22 are both movably connected to the bracket 21. The first micro switch 27 is disposed on the bracket 21. The first locking mechanism 22 has a first slot 2211. The bracket 21 has a snap-in end 211. The first retaining portion 11 has a first locked state where it enters from the snap-in end 211 and engages with the first slot 2211, and a locking state where it separates from the first slot 2211 and exits from the snap-in end 211. In the first unlocked state, the driven member 29 includes a first abutment portion 291, at least a portion of which is located within the first slot 2211. The first holding portion 11 switches from the first unlocked state to the first locked state. The first locking mechanism 22 is configured to be driven by the first holding portion 11 to move the first abutment portion 291 within the first slot 2211. The first abutment portion 291 is configured to abut against the first holding portion 11 when it moves into the first slot 2211, thereby driving the driven member 29 to move relative to the bracket 21 and triggering the first micro switch 27.

[0067] The bracket 21 and the housing 200 can be connected by a detachable method such as snap-fit ​​or screws for easy assembly. Alternatively, the bracket 21 can be fixed to the housing 200 by adhesive, welding, or riveting if assembly is not required.

[0068] The retaining element 10 can be installed on the door body 300 by welding, riveting or screw connection.

[0069] The door body 300 and the housing 200 can be engaged via a door lock device 100. Specifically, one end of the door body 300 is rotatably connected to the housing 200, and the other end of the door body 300 is openably and closeably connected to the housing 200 via the door lock device 100. Multiple door lock devices 100 can also be provided, and the door body 300 can be detachably engaged with the housing 200 via the door lock device 100.

[0070] The first holding part 11 can be a hook-shaped structure, or it can be an L-shaped rod or a T-shaped rod.

[0071] As an example, the retaining member 10 includes a mounting portion 13, and a first retaining portion 11 is connected to the mounting portion 13. The connection between the first retaining portion 11 and the mounting portion 13 includes, but is not limited to, screw connection, riveting, welding, or integral molding. The first retaining portion 11 can be a metal part or a plastic part.

[0072] The driven member 29 can be slidably connected to the bracket 21 along the snap-in direction, or it can be rotatably connected to the bracket 21. The first abutting part 291 is restricted to move within the first snap-in slot 2211. That is, during the snap-in process, the first holding part 11 can drive the driven member 29 to translate or rotate relative to the bracket 21, triggering the first micro switch 27. Depending on the structure of the driven member 29 and its position movably connected to the bracket 21, the first micro switch 27 can be set at different positions on the bracket 21. Taking Figure 3A as an example, Figure 3A Using the vertical direction as a reference, the first micro switch 27 can be positioned below the driven member 29, or it can be positioned at... Figure 3A The first locking mechanism 22 is located on the side opposite to the first card holding part 11.

[0073] As an example, with Figure 1 As shown in the reference direction, the first micro switch 27 is located below the first movable member 221.

[0074] The first micro switch 27 can be connected to the bracket 21 by screws, or it can be fixed to the bracket 21 by snap-fit ​​or adhesive.

[0075] Taking a cooking appliance 1000 as an example, such as a common microwave oven, during microwave oven use, when the door is closed, the first latch reaches a locked state. At this time, the first latch precisely triggers the first microswitch 27, thereby generating a door-closing signal. For example, when a user prepares to heat food and closes the microwave oven door, if the first latch is not in the correct locked state, the first microswitch 27 will not be triggered, and the microwave oven will not start. Only when the first latch successfully locks and triggers the first microswitch 27, generating a door-closing signal, will the microwave oven's heating function be activated. This effectively prevents the microwave oven from being started when the door is not properly closed, avoiding potential harm to the human body caused by microwave leakage.

[0076] When the first holding part 11 is located outside the locking component 20, the opening of the first slot 2211 is set towards the first holding part 11. During the locking process, the first holding part 11 can first enter the first slot 2211, and then move further to change the position of the first locking mechanism 22 relative to the bracket 21, so as to change the orientation of the slot and realize the restriction of the first slot 2211 on the first holding part 11 along the locking direction X.

[0077] During the closing process, the first holding part 11 abuts against the first abutting part 291 in the first card slot 2211. As the first holding part 11 moves, it drives the driven member 29 to move, thereby triggering the first micro switch 27 to generate a closing signal. When the first holding part 11 and the first card slot 2211 malfunction and do not enter the first card slot 2211, for example, when a foreign object enters the first card slot 2211 or the first card slot 2211 is not in the predetermined position, a jamming abnormality will occur. Since the first holding part 11 does not contact the first abutting part 291, this will reduce the probability that the driven member 29 will be driven by the first holding part 11 to trigger the first micro switch 27, that is, reduce the probability that the first micro switch 27 will be accidentally triggered because the door body 300 and the housing 200 are not locked.

[0078] In some embodiments of this application, the first card slot 2211 includes a first part 22111 and a second part 22112, which are connected. The first card holding part 11 has a first locked state that enters from the card insertion end 211 and engages with the first part 22111, and a first unlocked state that separates from the first part 22111 and exits from the card insertion end 211. When the first card holding part 11 moves to its limit position and is located outside the first card slot 2211 along the card insertion direction X of the first card holding part 11, at least a portion of the first abutment part 291 is located inside the first part 22111. When the first card holding part 11 is in the first locked state, the first abutment part 291 is located inside the second part 22112.

[0079] When a jamming abnormality occurs, the first holding part 11 is always located outside the first slot 2211. At this time, the range of motion of the first abutting part 291 within the first slot 2211 increases, which can reduce the probability that the first slot 2211 drives the first abutting part 291 to move and cause the follower 29 to move relative to the bracket 21, thereby reducing the probability that the first micro switch 27 is accidentally triggered, so as to improve the reliability of the door lock device 100.

[0080] In some embodiments of this application, please refer to Figures 3A-3C The follower 29 is rotatably connected to the bracket 21. The axis of rotation of the follower 29 relative to the bracket 21 is the first axis. The first abutment part 291 is configured to rotate around the first axis in the first slot 2211.

[0081] By rotatably connecting the follower 29 to the bracket 21 and allowing the first abutment 291 to move around the first axis within the first slot 2211, the smoothness of the entire system's movement is greatly enhanced. This design allows the follower 29 to be driven more precisely, reducing jamming and friction, and improving transmission efficiency.

[0082] In some embodiments of this application, please refer to Figures 3A-3CThe bracket 21 has a first limiting part 212 and a second limiting part 213. The follower 29 includes a swing arm 292, which is connected to the first abutting part 291. Along the arrangement direction of the locking end 211 and the first locking mechanism 22, the swing arm 292 has a first limiting part 212 on one side and a second limiting part 213 on the other side. The swing arm 292 is configured to rotate relative to the bracket 21 around a first axis between the first limiting part 212 and the second limiting part 213. When the first holding part 11 is in the first locked state, the swing arm 292 triggers the first micro switch 27. When the first holding part 11 is in the first unlocked state, the swing arm 292 separates from the first micro switch 27 to release the triggering state of the first micro switch 27.

[0083] As an example, the follower 29 also includes a rotating mounting portion 293, which is rotatably connected to the bracket 21 and has a first axis. The first abutment portion 291 is connected to the swing arm 292 through the rotating mounting portion 293, and can be formed into an integral structure by welding, bonding or injection molding. The rotating mounting portion 293 is generally cylindrical, and the first abutment portion 291 and the swing arm 292 are spaced apart along the circumferential direction of the rotating mounting portion 293.

[0084] The first limiting part 212 and the second limiting part 213 can limit the movement space of the swing arm 292, thereby reducing the probability that the first micro switch 27 will be deactivated due to the excessive angle of the swing arm 292 after the engagement (the swing arm 292 passes over the first micro switch 27, and the first micro switch 27 is deactivated after being triggered).

[0085] In some embodiments of this application, please refer to Figures 3A-3C and Figure 7D The first locking mechanism 22 includes a first movable member 221 and a first elastic member 222. The first movable member 221 is rotatably connected to the bracket 21. The axis of rotation of the first movable member 221 relative to the bracket 21 coincides with the first axis. The first movable member 221 can rotate relative to the driven member 29. The first movable member 221 has a first slot 2211. The first holding part 11 switches from a first unlocked state to a first locked state. The first movable member 221 is configured to be driven by the first holding part 11 to rotate relative to the bracket 21, so that the first abutting part 291 moves around the first axis within the first slot 2211. The first end 2221 of the first elastic member 222 is rotatably connected to the bracket 21, and the second end 2222 of the first elastic member 222 is rotatably connected to the first movable member 221. When the first holding part 11 is in the first unlocked state, the elastic force of the first elastic member 222 tends to slow down the first holding part 11 from entering the first slot 2211. When the first holding part 11 is in the first locked state, the elastic force of the first elastic member 222 tends to prevent the first holding part 11 from separating from the first slot 2211.

[0086] The first elastic element 222 includes, but is not limited to, any one of a torsion spring or an elastic telescopic rod.

[0087] As an example, please refer to Figure 7D The elastic telescopic rod can be an air spring; the elastic telescopic rod can also include a first rod, a second rod and a first compression spring. The first rod is a hollow rod, a part of the second rod is located in the cavity of the first rod and extends out from one end of the first rod, the other end of the first rod is blocked, and a first compression spring is provided between the other end of the first rod and the second rod.

[0088] As an example, the bracket 21 also has a third limiting part 214, which abuts against the first moving member 221 when the first holding part 11 is outside the locking assembly 20.

[0089] As an example, please refer to Figures 3A-3C An exemplary embodiment is shown, which can be a first torsion spring structure, to... Figure 3A With the indicated direction as a reference, the first torsion spring is located above the first movable member 221. The bracket 21 is provided with a first connecting hole, and the first movable member 221 is provided with a second connecting hole. One end of the first torsion spring is rotatably connected to the first connecting hole, and the other end of the first torsion spring is rotatably connected to the second connecting hole. The rotatable connection position with the second connecting hole is offset from the rotation center of the first movable member 221.

[0090] As an example, the first elastic element 222 can be a first tension spring. One end of the first tension spring is connected to the bracket 21, and the other end is connected to the first movable element 221. The position where the first tension spring is connected to the bracket 21 is above the first movable element 221 and located behind the first axis along the insertion direction X. The position where the first tension spring is connected to the first movable element 221 is below the first axis. When the first holding part 11 exits from the insertion end 2111, the position where the first tension spring is connected to the first movable element 221 is located behind the first axis along the insertion direction X. When the first holding part 11 is engaged, the position where the first tension spring is connected to the first movable element 221 is located in front of and below the first axis along the insertion direction X. During the engagement process, the first tension spring crosses the first axis so that the torque direction of the first tension spring acting on the first movable element 221 is opposite to that before the first holding part 11 is engaged, so that the engagement of the first holding part 11 can be slowed down during engagement and the engagement state can be maintained after engagement.

[0091] The first elastic element 222 can be, but is not limited to, any one of a torsion spring or an elastic telescopic rod, and the structure of the elastic telescopic rod can be, but is not limited to, the structures listed above.

[0092] The first elastic element 222 slows down the engagement speed of the first latching part 11. On the one hand, it buffers the noise from the impact between the door 300 and the housing 200 when the door is closed, and on the other hand, it reduces the engagement noise of the first latching part 11. At the same time, it allows the first latching part 11 to switch between the first unlocked state and the first locked state by overcoming the elastic force of the first elastic element 222 through external force, which facilitates the opening and closing operations.

[0093] In some embodiments of this application, please refer to Figures 4A-6 The first movable member 221 has a stop limiting part 2212, and the driven member 29 is provided with a first stop position 2921 and a second stop position 2922. Along the rotation direction of the driven member 29 relative to the bracket 21, the first stop position 2921 and the second stop position 2922 are spaced apart. The stop limiting part 2212 is located between the first stop position 2921 and the second stop position 2922, and can move around the first axis between the first stop position 2921 and the second stop position 2922 to limit the position of rotation of the driven member 29 relative to the first movable member 221.

[0094] As an example, the swing arm 292 of the follower 29 has a groove on one side extending along the first axis, and a stop limiting part is located in the groove. In the direction of rotation of the follower 29 relative to the bracket 21, one of the two spaced groove walls serves as the first stop position 2921, and the other serves as the second stop position 2922. The stop limiting part 2212 can be a protruding structure extending along the first axis.

[0095] The setting of the first stop position 2921 and the second stop position 2922 can limit the rotation range of the driven member 29, thereby reducing the probability that the driven member 29 will fail to trigger the first micro switch 27 due to excessive rotation angle, as well as the abnormal jamming, and improving the reliability of the door lock device 100. In other embodiments, the first elastic member 222 may be omitted, and the first movable member 221 may be driven by a motor. The motor is controlled by a controller to achieve forward and reverse rotation. A position sensor is provided on the bracket 21. When the first holding part 11 is not engaged, the opening of the first slot 2211 is obliquely upward facing the side of the first holding part 11. The position sensor is positioned opposite to the first slot 2211. During the engagement process, after the position sensor detects the signal that the first holding part 11 has entered the first slot 2211, it sends a command to the controller to drive the first movable member 221 to rotate, thereby achieving engagement of the first holding part 11. At the same time, during the rotation of the first movable member 221, the first holding part 11 abuts against the first abutting part 291 and drives the driven member 29 to rotate, thereby causing the driven member 29 to trigger the first micro switch 27.

[0096] In some embodiments of this application, please refer to Figures 3A-3C and Figure 7DThe first end 2221 has a first rotation center between itself and the bracket 21, the second end 2222 has a second rotation center between itself and the first movable member 221, and the first movable member 221 has a third rotation center between itself and the bracket 21. On the first cross-section of the first movable member 221, the straight line passing through the third rotation center and the second rotation center is the first straight line Z. During the process of the first holding part 11 switching from the first unlocked state to the first locked state, the trajectory curve of the second rotation center intersects with the first straight line Z. The axis of rotation of the first movable member 221 relative to the bracket 21 is perpendicular to the first cross-section.

[0097] As an example, please refer to Figure 7D The first elastic element 222 can be a first elastic telescopic rod, one end of which is hinged to the bracket 21, and the other end of which is hinged to the first movable element 221. On the same plane perpendicular to the hinge axis between the first elastic element 222 and the bracket 21, the center of the hinge axis between the first elastic telescopic rod and the bracket 21 is the first rotation center. The center of the hinge axis between the first elastic telescopic rod and the first movable element 221 is the second rotation center. During the engagement process, the first movable element 221 rotates, while the first elastic telescopic rod swings relative to the bracket 21.

[0098] The first elastic element 222 can reduce the snapping speed of the first snapping part 11. On the one hand, it can buffer the noise of the door 300 hitting the housing 200 when closing, and on the other hand, it can reduce the snapping noise.

[0099] In some embodiments of this application, please refer to Figure 3A The first holding part 11 can be a hook structure, which includes a hook head 111 and a hook handle 112. The hook head 111 is connected to the hook handle 112, and the hook head 111 and the hook handle 112 together define an avoidance groove 113. When the first holding part 11 is in the first locked state, part of the hook head 111 is located in the first slot 2211, and part of the first moving part 221 is located in the avoidance groove 113.

[0100] The clearance groove 113 can increase the engagement volume of the first holding part 11, thereby improving the reliability of the first holding part 11.

[0101] Thus, the first latching part 11 can be latched and unlocked, thereby enabling the door lock device 100 to be opened and locked when the door is closed.

[0102] In some embodiments of this application, please refer to Figure 1 , Figure 2 , Figures 7A-7DThe holding part also includes a second holding part 12, which is spaced apart from the first holding part 11 along the first direction Y. The second holding part 12 is connected to the mounting part 13. The locking assembly 20 also includes a second locking mechanism 23, which is spaced apart from the first locking mechanism 22 along the first direction Y. The second locking mechanism 23 includes a second movable member 231, which is rotatably connected to the bracket 21. The second movable member 231 has a second slot 2311. The second holding part 12 has a second locking state where it enters from the insertion end 211 and engages with the second slot 2311, and a second unlocking state where it separates from the second slot 2311 and exits from the insertion end 211. The first direction Y is perpendicular to the insertion direction X of the holding member 10. The axis of rotation of the second movable member 231 relative to the bracket 21 is perpendicular to the first direction Y.

[0103] The second holding part 12 is connected to the mounting part 13, specifically by means of integral molding, riveting, welding or screw connection.

[0104] The second movable member 231 can be rotated with the bracket 21 by a motor drive to change the position of the second slot 2311, thereby enabling the active engagement and separation of the second slot 2311 and the second holding part 12. Alternatively, the second movable member 231 can be elastically connected to the bracket 21 by the second elastic member 232, and driven by the second holding part 12 to achieve passive engagement and separation of the second slot 2311 and the second holding part 12.

[0105] Taking the microwave oven as an example of the cooking appliance 1000, the setting of the second latching part 12 can increase the number of latching positions between the door 300 and the housing 200, thereby improving the reliability and stability of the door 300 when closing, thus reducing the probability of microwave leakage of the microwave oven when closing the door; at the same time, it reduces the deformation of the door 300 when closing the door, thereby reducing the impact sound of the door 300 against the housing 200 caused by deformation, and improving the user experience.

[0106] In some embodiments of this application, please refer to Figures 7A-7D The second locking mechanism 23 also includes a second elastic member 232. The first connecting end 2321 of the second elastic member 232 is rotatably connected to the bracket 21, and the second connecting end 2322 of the second elastic member 232 is rotatably connected to the first movable member 221. When the second holding part 12 is in the second unlocked state, the elastic force of the second elastic member 232 tends to slow down the second holding part 12 from entering the second slot 2311. When the second holding part 12 is in the locked state, the elastic force of the second elastic member 232 tends to prevent the second holding part 12 from separating from the second slot 2311.

[0107] The second elastic element 232 can be any one of, but is not limited to, a tension spring, a torsion spring, or an elastic telescopic rod.

[0108] As an example, the second elastic element 232 can be a second tension spring. One end of the second tension spring is connected to the bracket 21, and the other end is connected to the second movable element 231. The position where the second tension spring is connected to the bracket 21 is above the first movable element 231 and located in front of the second axis along the snap-in direction X. The position where the second tension spring is connected to the second movable element 231 is below the second axis. When the second holding part 12 exits from the snap-in end 2111, the position where the second tension spring is connected to the second movable element 231 is in front of the second axis along the snap-in direction X. When the second holding part 21 is engaged, the position where the second tension spring is connected to the second movable element 231 is located behind and below the second axis along the snap-in direction X. During the engagement process, the second tension spring crosses the second axis so that the torque direction of the second tension spring acting on the second movable element 231 is opposite to that before the second holding part 21 is engaged, so that the engagement of the first holding part 12 can be slowed down during engagement and the engagement state can be maintained after engagement.

[0109] The second elastic element 232 can be, but is not limited to, any one of a torsion spring or an elastic telescopic rod, and the structure of the elastic telescopic rod can be, but is not limited to, the structures listed above.

[0110] In some embodiments of this application, please refer to Figures 7A-7D The first connecting end 2321 has a first rotation center between itself and the bracket 21, the second connecting end 2322 has a second rotation center between itself and the second movable part 231, and the second movable part 231 has a third rotation center between itself and the bracket 21. On the second cross section of the second movable part 231, the straight line passing through the third rotation center and the first rotation center is the second straight line P. During the process of the second holding part 12 switching from the second unlocked state to the second locked state, the trajectory curve of the second rotation center intersects with the second straight line P. The axis of rotation of the second movable part 231 relative to the bracket 21 is perpendicular to the second cross section.

[0111] As an example, please refer to Figure 7DThe second elastic element 232 can be a second elastic telescopic rod, one end of which is hinged to the bracket 21, and the other end of which is hinged to the second movable element 231. In the second cross-section, the center of the hinge axis between the second elastic telescopic rod and the bracket 21 is the first rotation center. The hinge center between the second elastic telescopic rod and the second movable element 231 is the second rotation center. During the engagement of the second locking part 12, the second movable element 231 rotates, and simultaneously the second elastic telescopic rod rotates relative to the bracket 21. When the second locking part 12 is not engaged, the second movable element 231 remains in an unlocked state under the elastic force of the second elastic telescopic rod. During the engagement process of the second holding part 12, the second holding part 12 overcomes the elastic force of the second elastic telescopic rod and causes the second movable member 231 to rotate. When the second rotation center moves to the second straight line P, the torque of the elastic force of the second elastic telescopic rod on the second movable member 231 is zero. As the second holding part 12 further causes the second movable member 231 to rotate, the direction of the torque of the second elastic telescopic rod on the second movable member 231 is opposite to that before engagement.

[0112] Figures 7A-7C An exemplary structural diagram is shown, in which the second elastic element 232 is a torsion spring and is connected to the bracket 21 and the second movable element 231 respectively.

[0113] Therefore, during the engagement or unlocking process of the second latching part 12, the second elastic member 232 can provide elastic force in different directions to the second movable member 231 to generate torque in different directions, thereby slowing down the engagement speed during the engagement of the second latching part 12 and maintaining the locked state after the second latching part 12 is locked.

[0114] In some embodiments of this application, please refer to Figure 1 and Figure 7A The door lock device 100 also includes a second micro switch 28, which is disposed on the bracket 21. When the second holding part 12 is in the second locked state, the second moving part 231 triggers the second micro switch 28.

[0115] The connection between the second micro switch 28 and the bracket 21 includes, but is not limited to, snap-fit, screw connection, or adhesive connection.

[0116] The second microswitch 28 provides a door-closing signal to the second latching part 12 upon successful engagement, ensuring that the cooking appliance 1000 performs cooking operations after the door is closed. Taking a microwave oven as an example, this design prevents the microwave oven from being started if the door is not properly closed, avoiding potential harm to the human body from microwave leakage.

[0117] In some embodiments of this application, please refer to Figures 7A-7CThe locking component 20 also includes a third elastic member 233, which is disposed on the bracket 21. When the second holding part 12 is in the unlocked state, the third elastic member 233 abuts against the second moving part 231, and the third elastic member 233 is in the compressed state.

[0118] The third elastic element 233 includes, but is not limited to, one of a compression spring, an elastic rubber element, an elastic telescopic rod, or an elastic polyurethane element. The elastic telescopic rod can be, but is not limited to, the examples mentioned above.

[0119] As an example, during the engagement process of the second holding part 12, the second movable member 231 can separate from the third elastic member 233 when it rotates at a certain angle, or it can remain in contact with the third elastic member 233.

[0120] In the second unlocked state, the second movable member 231 remains balanced under the force of the third elastic member 233 and the second elastic member 232. On the one hand, when the second holding part 12 is unlocked, the third elastic member 233 can have a buffering effect, which can reduce the impact of the second movable member 231 on the bracket 21, thereby reducing damage to the bracket 21 and extending the service life of the bracket 21. On the other hand, during the locking process of the second holding part 12, the elastic force of the third elastic member 233 can offset part of the elastic force of the second elastic member 232, thereby reducing the thrust acting on the holding member 10 and making locking easier.

[0121] In some embodiments of this application, please refer to Figure 2 The locking assembly 20 also includes a damping component 30, which is disposed on the bracket 21. The damping component 30 is used to provide damping force to the second movable member 231 to slow down the speed at which the second holding part 12 engages with the second slot 2311.

[0122] The damping component 30 includes either an elastic telescopic rod or a damper 32.

[0123] The damping component 30 can further slow down the engagement speed of the second latching part 12, so as to reduce the impact sound between the door 300 and the housing 200 when the door 300 of the cooking appliance 1000 is closed, and at the same time reduce the engagement sound of the second latching part 12.

[0124] In some embodiments of this application, please refer to Figure 2The second movable member 231 has a partially convex arc surface. The axis of rotation of the second movable member 231 relative to the bracket 21 coincides with the axis of the partially outer cylindrical surface. The arc surface is provided with a plurality of meshing teeth 2312 continuously arranged along the circumference of the arc surface. The damping component 30 includes a damper 32 and a rack 31. The rack 31 is slidably connected to the bracket 21 along the first direction Y. The rack 31 meshes with the meshing teeth 2312. Along the straight direction of the rack 31, the rack 31 is configured to be driven to make linear motion relative to the bracket 21. The movable end of the damper 32 is connected to the rack 31.

[0125] As an example, the bracket 21 is provided with a cover plate 26, which is detachably connected to the bracket 21. Specifically, it can be one or both of snap-fit ​​or screw connection, and together with the bracket 21, it defines a guide groove. The length direction of the guide groove can be the same as the first direction Y. The rack 31 and the damper 32 are both disposed in the guide groove.

[0126] The damper 32 can be a unidirectional damper. In other examples, the damping component 30 can be a flexible telescopic rod, which can be one of the structures listed above.

[0127] As an example, the second slot 2311 can generally be a U-shaped slot.

[0128] During the engagement of the second latching part 12, the second latching part 12 drives the second movable member 231 to rotate relative to the bracket 21. The rotation of the second movable member 231 drives the rack 31 to move along its own linear direction, thereby compressing the damper 32. The damper 32 provides a reverse damping force to slow down the speed at which the second latching part 12 enters the second latching slot 2311, thereby reducing the noise generated by the collision between the door 300 and the housing 200 when the door is closed, and also reducing the noise of the latching member 10 engaging with the locking assembly 20. In other examples, the rack 31 structure can be omitted, one end of the damper 32 abuts against the second movable member 231, and the other end of the damper 32 is hinged to the bracket 21.

[0129] In some embodiments of this application, please refer to Figure 2 , Figures 7A-7C The second movable member 231 includes a rotating hook arm 2313, and the locking assembly 20 also includes a blocking limit member 24. The blocking limit member 24 is located on the side of the second movable member 231 with the second slot 2311. The blocking limit member 24 is movably mounted on the bracket 21. The blocking limit member 24 has a limiting slot 241. When the second holding part 12 moves out from the locking end 211, the limiting slot 241 engages with the rotating hook arm 2313 to limit the rotation of the second movable member 231 relative to the bracket 21.

[0130] As an example, the second movable member 231 is also provided with a first guide surface 23112, which is connected to the groove wall of the second slot 2311. During the process of the second holding part 12 being inserted into the second slot 2311, the second holding part 12 first abuts against the first guide surface 23112. The second holding part 12 is driven by an external force to make the second movable member 231 rotate. At this time, the position of the second slot 2311 relative to the second holding part 12 changes, and slides into the second slot 2311 under the guidance of the first guide surface 23112, and finally moves into the second slot 2311. At the same time, it maintains the locked state under the force of the second elastic member 232.

[0131] As an example, the second slot 2311 has a clearance portion 23111. During the engagement of the second holding portion 12, as the second movable member 231 rotates, the orientation of the opening of the second slot 2311 changes, and the clearance portion 23111 can avoid the second slot 2311, thereby reducing the probability of interference during engagement. A portion of the clearance portion 23111 can connect with the aforementioned first guide surface 23112. In other examples, the width of the second slot 2311 is slightly larger than the width (dimension along the engagement direction X) of the second holding portion 12, to further reduce the probability of jamming due to interference during engagement.

[0132] As an example, the second holding part 12 has a hook-shaped structure, including a hook rod 122 and a hook head 121. The hook head 121 is connected to the hook rod 122, which can be welded or integrally formed. A clearance groove 113 is formed between the hook head 121 and the hook rod 122 to accommodate at least a partial rotation of the hook arm 2313 during the locking process. Along the direction from the hook head 121 to the hook rod 122, the cross-sectional area of ​​the hook rod 122 increases progressively, which can improve the strength of the hook rod 122 and reduce stress concentration of the hook rod 122 during the locking process.

[0133] The limiting slot 241 can be, but is not limited to, a U-shaped slot, a trapezoidal slot, or a rectangular slot, etc., and can be designed according to actual needs.

[0134] The blocking and limiting member 24 can be slidably connected to the bracket 21, and the blocking and limiting member 24 can also be rotatably connected to the bracket 21.

[0135] As an example, the blocking and limiting member 24 is slidably connected to the bracket 21 along the first direction Y. Specifically, the bracket 21 is provided with a guide groove extending along the first direction Y, the blocking and limiting member 24 is disposed in the guide groove, and is capable of moving along the first direction Y. A spring or elastic telescopic rod is provided between the guide groove and the blocking and limiting member 24.

[0136] As an example, the end of the bracket 21 that receives the holding member 10 is the insertion end 211. The blocking and limiting member 24 is provided with a second guide surface 242 on the side facing the insertion end 211. Along the first direction Y, the minimum dimension from any position on the second guide surface 242 to the insertion end 211 increases. During the engagement of the second holding part 12, the second guide surface 242 is squeezed by the second holding part 12, so that the limiting groove 241 moves away from the rotating hook arm 2313, thereby releasing the restriction of the blocking and limiting member 24 on the rotation of the second movable member 231, and finally realizing the engagement of the second holding part 12.

[0137] As an example, the blocking and limiting member 24 is provided with a first magnet and a second magnet on the side opposite to the second movable member 231. The first magnet is connected to the blocking and limiting member 24 and can also be part of the blocking and limiting member 24. The second magnet is fixed to the bracket 21 and can also be part of the bracket 21. The first magnet and the second magnet are arranged opposite each other and their magnetic poles face each other. The repulsive force of the first magnet and the second magnet can keep the rotating hook arm 2313 in a locked state with the limiting slot 241.

[0138] By rotating the hook arm 2313 and setting the limiting slot 241, the probability of the second moving part 231 being abnormally triggered can be reduced, thereby improving the reliability of the second holding part 12 engaging with the second slot 2311.

[0139] In some embodiments of this application, please refer to Figures 7A-7C The blocking and limiting member 24 is rotatably connected to the bracket 21. The locking assembly 20 also includes a fourth elastic member 25. The fourth elastic member 25 is located on the side of the blocking and limiting member 24 away from the second movable member 231. The fourth elastic member 25 abuts against the bracket 21 and the blocking and limiting member 24 respectively. When the rotating hook arm 2313 is in the latching state, the elastic force of the fourth elastic member 25 can cause the limiting slot 241 to remain in the latching state with the rotating hook arm 2313.

[0140] The fourth elastic element 25 includes a compression spring, an elastic telescopic rod, or a torsion spring.

[0141] As an example, the fourth elastic element 25 can be a first compression spring. The first compression spring is located on the side of the blocking limit member 24 away from the second movable member 231 and is offset from the rotation center of the blocking limit member 24. One end of the fourth elastic element 25 abuts against the bracket 21, and the other end abuts against the blocking limit member 24. Under the elastic force of the fourth elastic element 25, the blocking limit member 24 tends to rotate toward the second movable member 231 so as to maintain the locking state of the rotating hook arm 2313.

[0142] The fourth elastic element 25 enables the rotating hook arm 2313 to remain in a locked state, thereby reducing the probability of the second movable element 231 being abnormally triggered and further improving the reliability of the locking of the second locking part 12. Furthermore, by overcoming the elastic force of the fourth elastic element 25, the rotating hook arm 2313 can be released from the locked state, facilitating the locking operation of the second locking part 12. At the same time, during the locking process, it can also provide damping force to the second locking part 12 to slow down the speed of entering the second slot 2311.

[0143] According to the embodiments of this application, please refer to Figures 1-8B A cooking appliance 1000 is proposed, including a housing 200, a door 300, and a door lock device 100 as described in the above embodiment. The housing 200 has an interior cavity, and a doorway communicating with the cavity is provided at the front end of the housing 200. The door 300 is configured to close to the doorway, and one end of the door 300 is pivotally connected to the housing 200. A retaining member 10 is installed on the door 300, and a first retaining portion 11 extends from the side of the door 300 facing the doorway. A locking assembly 20 is installed inside the housing 200. When the door 300 is closed to the doorway, the first retaining portion 11 is in a first locked state; when the door 300 is open, the first retaining portion 11 is in a first unlocked state.

[0144] Cooking appliances 1000 can include, but are not limited to, microwave ovens or electric ovens.

[0145] A cavity is a space used for cooking food.

[0146] The retaining element 10 can be installed on the door body 300 by means of screws, welding or riveting.

[0147] Taking a microwave oven as an example of a cooking appliance 1000, the first latching part 11 and the second latching part 12 are spaced vertically. During the closing process of the microwave oven, the first latching part 11 and the second latching part 12 are engaged with the locking component 20, which can improve the reliability of closing the door.

[0148] Since the cooking appliance 1000 includes all the technical features of the door lock device 100 described above, and has the same effect as described above, it will not be repeated here.

[0149] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A door lock device for locking a door body and a case of a cooking appliance, characterized in that, The application relates to a door lock, comprising: a clamping piece for being mounted on the door body, the clamping piece comprising a first clamping part; a locking assembly comprising a bracket, a first locking mechanism, a driven piece and a first micro switch, the bracket being used for being mounted on the shell, the driven piece and the first locking mechanism being movably connected with the bracket, the first micro switch being arranged on the bracket, the first locking mechanism having a first clamping groove, the bracket being provided with a clamping end, the first clamping part having a first locking state of entering the first clamping groove from the clamping end and a first unlocking state of separating from the first clamping groove and exiting from the clamping end, the driven piece comprising a first abutting part, at least part of the first abutting part being located in the first clamping groove, the first locking mechanism being arranged to be driven by the first clamping part in the process of switching from the first unlocking state to the first locking state, so that the first abutting part is moved in the first clamping groove, the first abutting part being arranged to abut against the first clamping part when the first clamping part moves into the first clamping groove, so as to drive the driven piece to move relative to the bracket and trigger the first micro switch.

2. The door latch arrangement of claim 1, wherein The first clamping groove comprises a first part and a second part, the first part and the second part being communicated, the first clamping part having the first locking state of entering the first part from the clamping end and the first unlocking state of separating from the first part and exiting from the clamping end, at least part of the first abutting part being located in the first part when the first clamping part moves to an extreme position and is located outside the first clamping groove along the clamping direction of the first clamping part, the first abutting part being located in the second part when the first clamping part is in the first locking state.

3. The door latch arrangement of claim 1, wherein The driven piece is rotationally connected with the bracket, an axis of rotation of the driven piece relative to the bracket being a first axis, the first abutting part being arranged to rotate in the first clamping groove around the first axis.

4. The door latch arrangement of claim 3, wherein The bracket has a first limiting part and a second limiting part, the driven piece comprising a swing arm, the swing arm being connected with the first abutting part, one side of the swing arm being provided with the first limiting part and the other side of the swing arm being provided with the second limiting part along the arrangement direction of the clamping end and the first locking mechanism, the swing arm being arranged to rotate relative to the bracket between the first limiting part and the second limiting part around the first axis, the swing arm triggering the first micro switch when the first clamping part is in the first locking state, the swing arm being separated from the first micro switch to release the triggering state of the first micro switch when the first clamping part is in the first unlocking state.

5. The door latch arrangement of claim 3, wherein The first locking mechanism comprises: The first movable member is rotatably connected with the support, an axis of rotation of the first movable member relative to the support coincides with the first axis, the first movable member is rotatable relative to the driven member, the first movable member has the first clamping groove, and in the process of switching the first clamping portion from the first unlocking state to the first locking state, the first movable member is arranged to be driven to rotate relative to the support by the first clamping portion, so that the first abutting portion moves in the first clamping groove around the first axis; The first elastic member has a first end rotatably connected with the support and a second end rotatably connected with the first movable member, when the first clamping portion is in the first unlocking state, an elastic force of the first elastic member has a tendency to slow down the first clamping portion from entering the first clamping groove, and when the first clamping portion is in the first locking state, the elastic force of the first elastic member has a tendency to block the first clamping portion from separating from the first clamping groove.

6. The door latch arrangement of claim 5, wherein The first movable member has a stop limiting portion, the driven member is provided with a first stop position and a second stop position, the first stop position and the second stop position are arranged at intervals along a rotation direction of the driven member relative to the support, the stop limiting portion is located between the first stop position and the second stop position and is movable around the first axis between the first stop position and the second stop position, so as to limit a position of the driven member relative to the first movable member.

7. The door latch arrangement of claim 5, wherein The first end and the support have a first rotation center, the second end and the first movable member have a second rotation center, and the first movable member and the support have a third rotation center, on a first cross section of the first movable member, a straight line passing through the third rotation center and the second rotation center is a first straight line, in the process of switching the first clamping portion from the first unlocking state to the first locking state, a trajectory curve of the second rotation center intersects the first straight line, and an axis of rotation of the first movable member relative to the support is perpendicular to the first cross section.

8. The door lock device according to any one of claims 1 to 7, characterized by The clamping portion further comprises a second clamping portion, the second clamping portion is arranged at intervals with the first clamping portion along a first direction, the second clamping portion is connected with the mounting portion, the locking assembly further comprises a second locking mechanism, the second locking mechanism is arranged at intervals with the first locking mechanism along the first direction, the second locking mechanism comprises a second movable member, the second movable member is rotatably connected with the support, the second movable member has a second clamping groove, the second clamping portion has a second locking state of entering clamping with the second clamping groove from the clamping end and a second unlocking state of separating from the second clamping groove and exiting from the clamping end, the first direction is perpendicular to a clamping direction of the clamping member, and an axis of rotation of the second movable member relative to the support is perpendicular to the first direction.

9. The door latch arrangement of claim 8, wherein The second locking mechanism further comprises a second elastic member, a first connecting end of the second elastic member is rotationally connected with the support, and a second connecting end of the second elastic member is rotationally connected with the second movable member; when the second clamping portion is in the second unlocking state, the elastic force of the second elastic member has a tendency to slow down the second clamping portion from entering the second clamping groove; and when the second clamping portion is in the locked state, the elastic force of the second elastic member has a tendency to block the second clamping portion from separating from the second clamping groove.

10. The door latch arrangement of claim 9, wherein The first connecting end and the support have a first rotation center, the second connecting end and the second movable member have a second rotation center, and the second movable member and the support have a third rotation center; on a second cross section of the second movable member, a straight line passing through the third rotation center and the first rotation center is a second straight line; during switching of the second clamping portion from the second unlocking state to the second locked state, a locus curve of the second rotation center intersects the second straight line; and an axis of rotation of the second movable member relative to the support is perpendicular to the second cross section. The door lock device further comprises a second micro switch, the second micro switch is arranged on the support, and when the second clamping portion is in the locked state, the second movable member triggers the second micro switch. The locking assembly further comprises a third elastic member, the third elastic member is arranged on the support, and when the second clamping portion is in the second unlocking state, the third elastic member abuts against the second movable member, and the third elastic member is in a compressed state. The first clamping portion is in the form of a hook body structure, the hook body structure comprises a hook head and a hook handle, the hook head is connected with the hook handle, and the hook head and the hook handle jointly define an avoiding groove; when the first clamping portion is in the first locked state, part of the hook head is located in the first clamping groove, and part of the first movable member is located in the avoiding groove.

11. The door latch arrangement of claim 8, wherein The locking assembly further comprises a damping member, the damping member is arranged on the support, and the damping member is used to provide a damping force to the second movable member to slow down the speed of the second clamping portion from being clamped into the second clamping groove.

12. The door latch arrangement of claim 8, wherein The second movable member comprises a rotating hook arm, the locking assembly further comprises a blocking limiting member, the blocking limiting member is located on a side of the second movable member having the second clamping groove, the blocking limiting member is movably mounted on the support, the blocking limiting member has a limiting clamping groove, and when the second clamping portion moves away from the clamping end, the limiting clamping groove is clamped with the rotating hook arm to limit the rotation of the second movable member relative to the support.

13. The door latch arrangement of claim 12, wherein The blocking limiting member is rotationally connected with the support, the locking assembly further comprises a fourth elastic member, the fourth elastic member is located on a side of the blocking limiting member away from the second movable member, the fourth elastic member abuts against the support and the blocking limiting member respectively, and when the rotating hook arm is in the clamped state, the elastic force of the fourth elastic member can tend to keep the limiting clamping groove and the rotating hook arm in the clamped state.

14. A cooking appliance characterized in that, The locking assembly further comprises a damping member, the damping member is arranged on the support, and the damping member is used to provide a damping force to the second movable member to slow down the speed of the second clamping portion from being clamped into the second clamping groove. A shell, an inner portion of the shell is formed with a cavity, a front end of the shell is provided with a door opening in communication with the cavity; A door body, the door body is configured to cover the door opening, one end of the door body is pivotally connected with the shell; The door lock device according to any one of claims 1-13, the other end of the door body is connected with the clamping piece, the locking assembly is installed in the shell, when the door body covers the door opening, the first clamping part is in the first locking state, when the door body is in an open state, the first clamping part is in the first unlocking state.

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