Interlocking mechanisms and electrical components

Abstract

This application provides an interlocking mechanism and electrical appliance. The interlocking mechanism includes a bracket, a switch assembly and a push rod assembly mounted on the bracket. The switch assembly includes a first micro switch, a second micro switch, and a third micro switch. The push rod assembly includes a first sub-push rod assembly, which is movably mounted on the bracket via a first reset structure. The first sub-push rod assembly triggers the first and second micro switches. The first micro switch is located on one side of the first sub-push rod assembly, and the second micro switch is located on the other side. Both the first and second micro switches are located within the length range of the first sub-push rod assembly in the direction of movement of the first sub-push rod assembly. This solution reduces the overall size of the interlocking mechanism and improves its applicability by movably mounting the first sub-push rod assembly on the bracket and by making the switch assembly and push rod assembly compact.

Description

Technical Field

[0001] This application relates to the field of electrical technology, and in particular to an interlocking mechanism and electrical appliance. Background Technology

[0002] Microwave ovens, ovens, and other similar appliances typically incorporate interlocking mechanisms. These mechanisms control the power supply to or off of the appliance based on the opening and closing of the door, thus achieving safety protection. Interlocking mechanisms generally consist of an interlocking bracket, an interlocking lever, a microswitch, and a spring. Currently, the interlocking lever in these mechanisms is usually rotary, resulting in a large space requirement for the interlocking mechanism and limiting the layout of other components within the appliance. Summary of the Invention

[0003] This application provides an interlocking mechanism and an electrical appliance to solve the technical problem that the interlocking mechanism occupies a large space in the prior art, which restricts the layout of other components in the electrical appliance.

[0004] To address the above problems, this application provides an interlocking mechanism, which includes:

[0005] support;

[0006] A switch assembly is fixedly mounted on the bracket, and the switch assembly includes a first micro switch, a second micro switch, and a third micro switch;

[0007] The push rod assembly includes:

[0008] The first sub-push rod assembly is movably disposed on the bracket via a first reset structure. The first sub-push rod assembly is used to trigger the first micro switch and the second micro switch. The first micro switch is disposed on one side of the first sub-push rod assembly, and the second micro switch is disposed on the other side of the first sub-push rod assembly. The first micro switch and the second micro switch are both located within the length range of the first sub-push rod assembly in the moving direction of the first sub-push rod assembly.

[0009] The bracket is provided with a first mounting base, and the first mounting base is provided with a first mounting hole;

[0010] The first sub-push rod assembly includes a first mounting part and a push plate part that are connected to each other. A first limiting protrusion is provided at the connection between the first mounting part and the push plate part. One end of the first mounting part away from the push plate part is engaged with the first mounting hole. The first reset structure is sleeved on the first mounting part and located between the first limiting protrusion and the first mounting seat.

[0011] The push plate has a first trigger protrusion on one side and a second trigger protrusion on the other side. The first trigger protrusion is used to trigger the first micro switch, and the second trigger protrusion is used to trigger the second micro switch.

[0012] The push plate portion has a sliding portion on the end face near the bracket.

[0013] The bracket is provided with a first limiting plate and a second limiting plate, and the push plate is disposed between the first limiting plate and the second limiting plate.

[0014] The bracket is provided with a guide groove, and the first sub-push rod assembly is provided with a guide protrusion that cooperates with the guide groove. The guide groove is used to limit the movement direction of the first sub-push rod assembly.

[0015] The push rod assembly further includes:

[0016] The second sub-push rod assembly is movably disposed on the bracket via the second reset structure. The second sub-push rod assembly is used to trigger the third micro switch, which is located within the length range of the first sub-push rod assembly in the direction of movement of the first sub-push rod assembly.

[0017] The bracket is provided with a second mounting base, and the second mounting base is provided with a second mounting hole;

[0018] The second sub-push rod assembly includes a second mounting part, which is provided with a second limiting protrusion. The second mounting part is fitted into the second mounting hole, and the second reset structure is sleeved on the second mounting part and located between the second limiting protrusion and the second mounting base.

[0019] The third micro switch is located on the side of the second mounting base opposite to the second reset structure.

[0020] The bracket is provided with a positioning post, which is used to locate the installation position of the switch assembly.

[0021] This application also provides an electrical appliance, the electrical appliance comprising:

[0022] The main body is equipped with the interlocking mechanism described above;

[0023] A door body is disposed on the main body, and the door body is provided with a drive assembly, which is used to drive the push rod assembly in the interlocking mechanism to move when the door is opened.

[0024] The beneficial effects of the embodiments of this application are as follows: This application provides an interlocking mechanism, which includes a bracket, a switch assembly, and a push rod assembly. The switch assembly is fixedly mounted on the bracket and includes a first micro switch, a second micro switch, and a third micro switch. The push rod assembly includes a first sub-push rod assembly, which is movably mounted on the bracket via a first reset structure. The first sub-push rod assembly is used to trigger the first and second micro switches. The first micro switch is located on one side of the first sub-push rod assembly, and the second micro switch is located on the other side. Both the first and second micro switches are located within the length range of the first sub-push rod assembly in the direction of movement of the first sub-push rod assembly. The interlocking mechanism provided by this application, by moving the first sub-push rod assembly on the bracket, can reduce the space occupied by the first sub-push rod assembly when it is in motion, thereby reducing the overall size of the interlocking mechanism. Furthermore, by making the first and second micro switches both located within the length range of the first sub-push rod assembly in the direction of movement of the first sub-push rod assembly, the switch assembly can be compactly arranged, further reducing the space occupied by the interlocking mechanism. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0026] Figure 1 This is a three-dimensional structural diagram of the interlocking mechanism provided in this application;

[0027] Figure 2 This is a front view of the interlocking mechanism provided in this application;

[0028] Figure 3 This is an exploded view of the interlocking mechanism provided in this application;

[0029] Figure 4 This is a schematic diagram of the structure of the interlocking mechanism provided in this application, which includes a first trigger cam and a second trigger cam.

[0030] Figure 5 This is a schematic diagram of the structure of the first sub-push rod assembly in the interlocking mechanism provided in this application;

[0031] Figure 6 This is a structural schematic diagram of the appliance provided in this application with its door open.

[0032] Figure 7 yes Figure 6 Enlarged view of point A in the middle. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0034] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] 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.

[0038] Please see Figure 1-3 , Figure 1 This is a three-dimensional structural diagram of the interlocking mechanism provided in this application. Figure 2 This is a front view of the interlocking mechanism provided in this application. Figure 3 This is an exploded view of the interlocking mechanism provided in this application. This application provides an interlocking mechanism including a bracket 10, a switch assembly, and a push rod assembly. The switch assembly is fixedly mounted on the bracket 10. The switch assembly includes a first micro switch 21, a second micro switch 22, and a third micro switch 23. The push rod assembly includes a first sub-push rod assembly 31. The first sub-push rod assembly 31 is movably mounted on the bracket 10 via a first reset structure 33. The first sub-push rod assembly 31 is used to trigger the first micro switch 21 and the second micro switch 22. The first micro switch 21 is located on one side of the first sub-push rod assembly 31, and the second micro switch 22 is located on the other side of the first sub-push rod assembly 31. The first micro switch 21 and the second micro switch 22 are both located within the length range of the first sub-push rod assembly 31 in the direction of movement of the first sub-push rod assembly 31.

[0039] Please refer to the following: Figure 6 , Figure 6This is a structural diagram of the appliance provided in this application with its door open. The interlocking mechanism 100 can be applied to the appliance 1000, such as a microwave oven, oven, or microwave-grill combination appliance. To ensure user safety, the appliance 1000 needs to be powered off when the door 300 is open and can only operate when the door 300 is closed. The switch assembly in the interlocking mechanism 100 is connected to the relevant wiring harness in the appliance 1000, so that the appliance 1000 can be powered off when the first microswitch 21, the second microswitch 22, and the third microswitch 23 are triggered. The third microswitch 23 can be triggered by the first sub-push rod assembly 31. For example, the first sub-push rod assembly 31 is provided with an extension, so that when the first sub-push rod assembly 31 moves, it drives the extension to move, thereby triggering the third microswitch 23. In some embodiments, the push rod assembly may also include a second sub-push rod assembly 32. The second sub-push rod assembly 32 is movably disposed on the bracket 10 via the second reset structure 34. The third microswitch 23 can also be triggered by the second sub-push rod assembly 32. The third micro switch 23 is located within the length range of the first sub-push rod assembly 31 in the direction of movement of the first sub-push rod assembly 31. When the door 300 of the appliance 1000 is opened, the door 300 pushes the first sub-push rod assembly 31 and the second sub-push rod assembly 32 to move. The first sub-push rod assembly 31 triggers the first micro switch 21 and the second micro switch 22, and the second sub-push rod assembly 32 triggers the third micro switch 23, thereby de-energizing the appliance 1000. When the door 300 of the appliance 1000 is closed, the first sub-push rod assembly 31 returns to its initial position under the action of the first reset structure 33, thereby releasing the triggering of the first micro switch 21 and the second micro switch 22. The second sub-push rod assembly 32 returns to its initial position under the action of the second reset structure 34, thereby releasing the triggering of the third micro switch 23, and the appliance 1000 returns to the energized state.

[0040] The bracket 10 is used to mount the switch assembly and push rod assembly constituting the interlocking mechanism 100. This embodiment does not limit the specific shape and structure of the bracket 10; for example, the bracket 10 can be a rectangular plate structure with a folded edge 16. The switch assembly and push rod assembly are disposed on one side surface of the rectangular plate structure. The folded edge 16 is folded towards the side of the bracket 10 where the switch assembly and push rod assembly are disposed. The bracket 10 may be provided with snap-fit ​​components 15, so that the first microswitch 21, the second microswitch 22, and the third microswitch 23 are all fixedly disposed on the bracket 10 by snap-fit ​​engagement. Each microswitch corresponds to a set of snap-fit ​​components 15, and each set of snap-fit ​​components 15 is distributed on the bracket 10 according to the position of the corresponding microswitch on the bracket 10. In some embodiments, the bracket 10 may also be provided with positioning posts 14, which are used to position the installation position of each microswitch in the switch assembly on the bracket 10. For example, a corresponding positioning hole can be set on the micro switch, and during assembly, the positioning hole on the micro switch can be made to cooperate with the corresponding positioning post 14, so as to ensure that the corresponding micro switch can be triggered when the push rod moves.

[0041] A microswitch is a contact mechanism with tiny contact intervals and a quick-acting mechanism, which performs switching actions with a specified stroke and a specified force. A microswitch has a housing body, a wiring metal piece, and a drive rod, also called a contact. The drive rod actuates the microswitch's contact, thereby triggering the microswitch's action. It should be noted that in this application, the first microswitch 21, the second microswitch 22, and the third microswitch 23 are all located within the length of the first sub-push rod assembly 31 in the moving direction. This is a limitation on the position of the first microswitch 21, the second microswitch 22, and the third microswitch 23 along the moving direction of the first sub-push rod assembly 31. It should be understood that the housing body of each microswitch is located within the length of the first sub-push rod assembly 31 in the moving direction, or that the housing body of each microswitch and the wiring metal piece on the housing body are simultaneously located within the length of the first sub-push rod assembly 31.

[0042] This embodiment does not limit the specific structure of the first micro switch 21, the second micro switch 22, and the third micro switch 23. For example, the first micro switch 21, the second micro switch 22, and the third micro switch 23 can be products with the same structure. The first micro switch 21 is provided with a first contact 211. The side of the first micro switch 21 with the first contact 211 faces the first sub-push rod assembly 31. The second micro switch 22 is provided with a second contact 221. The side of the second micro switch 22 with the second contact 221 faces the first sub-push rod assembly 31. The third micro switch 23 is provided with a third contact 231, and the side of the third micro switch 23 with the third contact 231 faces one end of the second sub-push rod assembly 32. When the second sub-push rod assembly 32 moves, it can directly drive the third contact 231 to actuate through the end near the third micro switch 23, thereby triggering the third micro switch 23 to actuate. When the first sub-push rod assembly 31 moves, it drives the first contact 211 to actuate, triggering the first micro switch 21 to actuate, and at the same time drives the second contact 221 to actuate, triggering the second micro switch 22 to actuate.

[0043] Please refer to the following: Figure 4 , Figure 4 This is a schematic diagram of the interlocking mechanism provided in this application, which includes a first trigger cam and a second trigger cam. This embodiment does not limit the specific method by which the first sub-push rod assembly 31 triggers the first contact 211 and the second contact 221. For example, in some embodiments, the first sub-push rod assembly 31 has a first trigger protrusion 314 on the side facing the first micro switch 21 and a second trigger protrusion 315 on the side facing the second micro switch 22. The first trigger protrusion 314 has an inclined first driving surface, and the second trigger protrusion 315 has an inclined second driving surface. When the first sub-push rod assembly 31 moves the first trigger protrusion 314 and the second trigger protrusion 315, the first driving surface pushes the first trigger protrusion 314 away from the first sub-push rod assembly 31 to trigger the first micro switch 21, and the second driving surface pushes the second trigger protrusion 315 away from the first sub-push rod assembly 31 to trigger the second micro switch 22. For example, in some embodiments, a first trigger cam 35 may be provided on one side of the first sub-push rod assembly 31, and a second trigger cam may be provided on the other side. Both the first trigger cam 35 and the second trigger cam 36 are provided with first transmission teeth, and the first sub-push rod assembly 31 is provided with second transmission teeth. When the first sub-push rod assembly 31 moves, the first trigger cam 35 and the second trigger cam 36 are rotated through the cooperation of the second transmission teeth and the first transmission teeth. This causes the first trigger cam 35 to push the first trigger protrusion 314 to move to trigger the first micro switch 21, and the second trigger cam 36 to push the second trigger protrusion 315 to move to trigger the second micro switch 22.

[0044] Both the first sub-push rod assembly 31 and the second sub-push rod assembly 32 are movably mounted on the bracket 10. The first sub-push rod assembly 31 and the second sub-push rod assembly 32 move in the same direction. This embodiment does not limit the specific arrangement of the first sub-push rod assembly 31 and the second sub-push rod assembly 32 on the bracket 10. For example, in some embodiments, the bracket 10 is provided with a first mounting base 11. The first mounting base 11 is provided with a first mounting hole 111. The first sub-push rod assembly 31 includes a first mounting portion 311 and a push plate portion 313 connected to each other. A first limiting protrusion 312 is provided at the connection between the first mounting portion 311 and the push plate portion 313. The end of the first mounting portion 311 facing away from the push plate portion 313 engages with the first mounting hole 111. The first mounting portion 311 and the first mounting hole 111 can be configured such that the first mounting portion 311 passes through the first mounting hole 111, or the first mounting portion 311 is fixedly disposed within the first mounting hole 111. When the first mounting portion 311 is fixedly disposed within the first mounting hole 111, the first sub-push rod assembly 31 can be a telescopic rod. The first reset structure 33 is sleeved on the first mounting portion 311 and located between the first limiting protrusion 312 and the first mounting base 11. When the door 300 of the electrical appliance 1000 is opened, the door 300 pushes the first sub-push rod assembly 31 to move, and the first sub-push rod assembly 31 drives the first limiting protrusion 312 to press the first reset structure 33 towards the first mounting base 11. When the door 300 of the electrical appliance 1000 is closed, the first reset structure 33 pushes the first limiting protrusion 312 away from the first mounting base 11 when it returns to its original state, thereby pushing the first sub-push rod assembly 31 back to its initial state. In some embodiments, the first reset structure 33 can be a spring. The first mounting portion 311 is a cylindrical section. The first limiting protrusion 312 is a raised edge around the circumference of the first mounting portion 311. When the first reset structure 33 is fitted onto the first mounting portion 311, one end of the first reset structure 33 abuts against one side surface of the first limiting protrusion 312. When the end of the first mounting portion 311 opposite to the first limiting protrusion 312 passes through the first mounting hole 111, the other end of the first reset structure 33 abuts against one side surface of the first mounting base 11. A first through hole 161 can be provided on the folded edge 16 of the bracket 10. The end of the first sub-push rod assembly 31 opposite to the first mounting base 11 can pass through the first through hole 161, so that the first sub-push rod assembly 31 can be pushed when the door 300 is opened. Or, as Figure 7 As shown, when the door 300 is opened, the drive assembly 310 on the door 300 can extend into the first through hole 161 to drive the first sub-push rod assembly 31 to approach one end of the folded edge 16.

[0045] The bracket 10 is also provided with a second mounting seat 12. The second mounting seat 12 is provided with a second mounting hole 121. The second sub-push rod assembly 32 is provided with a second mounting part 321. The second mounting part 321 is provided with a second limiting protrusion 322. The second mounting part 321 is fitted into the second mounting hole 121. The fitting method between the second mounting part 321 and the second mounting hole 121 can be that the second mounting part 321 passes through the second mounting hole 121, or the second mounting part 321 is fixedly installed in the second mounting hole 121. When the second mounting part 321 is fixedly installed in the second mounting hole 121, the second sub-push rod assembly 32 can be a telescopic rod. The second reset structure 34 is sleeved on the second mounting part 321 and is located between the second limiting protrusion 322 and the second mounting seat 12. When the door 300 of the appliance 1000 is opened, it simultaneously pushes the second sub-push rod assembly 32 to move. The second sub-push rod assembly 32 causes the second limiting protrusion 322 to press the second reset structure 34 towards the second mounting base 12. When the door 300 of the appliance 1000 is closed, the second reset structure 34 returns to its original position, pushing the second limiting protrusion 322 away from the second mounting base 12, thereby pushing the second sub-push rod assembly 32 back to its initial state. In some embodiments, the second reset structure 34 can also be a spring. The second sub-push rod assembly 32 can be cylindrical, with a raised edge machined on the cylinder as the second limiting protrusion 322. The second reset structure 34 is fitted onto one end of the second sub-push rod assembly 32. When the end of the second sub-push rod assembly 32 fitted with the second reset structure 34 passes through the second mounting hole 121, one end of the second reset structure 34 abuts against one side surface of the second limiting protrusion 322, and the other end abuts against one side surface of the second mounting base 12. The third micro switch 23 can be located on the side of the second mounting base 12 opposite to the second reset structure 34, so that the third contact 231 can be directly actuated by the end face of the second sub-push rod assembly 32 passing through one end of the second mounting hole 121. A second through hole 162 can also be provided on the folded edge 16 of the bracket 10. The end of the second sub-push rod assembly 32 opposite to the second mounting base 12 can pass through the second through hole 162, so that the second sub-push rod assembly 32 can be pushed when the door 300 is opened. Alternatively, when the door 300 is opened, the drive assembly 310 on the door 300 can pass through the second through hole 162 to drive the second sub-push rod assembly 32 closer to one end of the folded edge 16.

[0046] The interlocking mechanism 100 provided in this embodiment of the application moves and is mounted on the bracket 10 by first sub-push rod assembly 31 and second sub-push rod assembly 32. The movement of the first sub-push rod assembly 31 and second sub-push rod assembly 32 triggers the first micro switch 21, second micro switch 22, and third micro switch 23. Compared to rotating the first sub-push rod assembly 31 and second sub-push rod assembly 32, this effectively reduces the operating space of the first sub-push rod assembly 31 and second sub-push rod assembly 32, thereby reducing the overall space occupied by the interlocking mechanism 100. Furthermore, the first micro switch 21, second micro switch 22, and third micro switch 23 are all located within the length range of the first sub-push rod assembly 31 in the direction of movement of the first sub-push rod assembly 31, allowing for a compact layout of the switch assemblies in that direction, further reducing the size of the interlocking mechanism 100 in that direction. Moreover, the interlocking mechanism 100 has a neat layout and regular shape, further improving its applicability in electrical appliances 1000.

[0047] Please see Figure 3 , 5 , Figure 5 This is a schematic diagram of the structure of the first sub-push rod assembly in the interlocking mechanism provided in this application. In some embodiments, the push plate portion 313 is a plate-shaped structure. The push plate portion 313 and the first mounting portion 311 can be integrally formed. A first trigger protrusion 314 is provided on one side surface of the push plate portion 313, and a second trigger protrusion 315 is provided on the other side surface. By providing a plate-shaped push plate portion 313 on the first sub-push rod assembly 31, compared with a cylindrical shape, the space occupied by the first sub-push rod assembly 31 in the direction perpendicular to the movement of the first sub-push rod assembly 31 can be effectively reduced, thereby making the layout of the first micro switch 21, the second micro switch 22, and the third micro switch 23 in the direction perpendicular to the movement of the first sub-push rod assembly 31 more compact. It should be noted that when the push plate portion 313 is a plate-shaped structure, the push plate portion 313 and the bracket 10 are in surface contact when the push plate portion 313 moves. To reduce friction between the push plate portion 313 and the bracket 10 when the first sub-push rod assembly 31 moves, a sliding portion 316 can be provided on the end face of the push plate portion 313 near the bracket 10. For example, the sliding portion 316 can be a hemispherical protrusion, which converts surface contact into point contact. Alternatively, the end face of the push plate portion 313 near the bracket 10 can be set as an outwardly convex arc surface, and the sliding portion 316 can also be an arc surface, thereby converting surface contact into line contact. Alternatively, a roller can be provided on the end face of the push plate portion 313 near the bracket 10, and the sliding portion 316 can also be a roller, converting sliding friction into rolling friction.

[0048] Please see Figure 3In some embodiments, when the first sub-push rod assembly 31 is provided with a push plate portion 313, the bracket 10 may also be provided with a first limiting plate 131 and a second limiting plate 132. The push plate portion 313 is positioned between the first limiting plate 131 and the second limiting plate 132. This embodiment does not limit the dimensions or the number of the first limiting plate 131 and the second limiting plate 132 along the moving direction of the first sub-push rod assembly 31. For example, when the dimension of the first limiting plate 131 along the moving direction of the first sub-push rod assembly 31 is large, and the range of action of the first limiting plate 131 on the first sub-push rod assembly 31 is also large, only one first limiting plate 131 may be provided. When the dimension of the second limiting plate 132 in the moving direction of the first sub-push rod assembly 31 is small to avoid other components on the bracket 10, two second limiting plates 132 may be provided. For the entire first sub-push rod assembly 31, in the direction perpendicular to the movement of the first sub-push rod assembly 31, in addition to the first mounting base 11 supporting the first mounting part 311 of the first sub-push rod assembly 31, the first limiting plate 131 and the second limiting plate 132 can also support the push plate part 313 of the first sub-push rod assembly 31, ensuring the stability of the first sub-push rod assembly 31 in moving installation on the bracket 10.

[0049] Please see Figure 3 , 5 In some embodiments, the bracket 10 may also be provided with a guide groove 17. The guide groove 17 is used to limit the movement direction of the first sub-push rod assembly 31. The first sub-push rod assembly 31 is provided with a guide protrusion 317 that cooperates with the guide groove 17 on the side near the bracket 10. When the first sub-push rod assembly 31 moves, the guide protrusion 317 on the first sub-push rod assembly 31 moves along the guide groove 17, thereby ensuring the movement stability of the first sub-push rod assembly 31.

[0050] The interlocking mechanism 100 provided in the above embodiments of this application, when the door 300 of the electrical appliance 1000 is opened, simultaneously drives the first sub-push rod assembly 31 and the second sub-push rod assembly 32 to move. When the first sub-push rod assembly 31 moves, the first trigger protrusion 314 on the first sub-push rod assembly 31 triggers the first micro switch 21 to act, and the second trigger protrusion 315 on the first sub-push rod assembly 31 triggers the second micro switch 22 to act. At the same time, the first limiting protrusion 312 on the first sub-push rod assembly 31 presses the first reset structure 33, causing the first reset structure 33 to be compressed. When the second sub-push rod assembly 32 moves, the end of the second sub-push rod assembly 32 that is away from the door 300 triggers the third micro switch 23. At the same time, the second limiting protrusion 322 on the second sub-push rod assembly 32 presses the second reset structure 34, causing the second reset structure 34 to be compressed. When the door 300 of the appliance 1000 is closed, the driving force of the door 300 on the first sub-push rod assembly 31 and the second sub-push rod assembly 32 is released, the first reset structure 33 pushes the first sub-push rod assembly 31 back to its initial state, and the second reset structure 34 pushes the second sub-push rod assembly 32 back to its initial state.

[0051] Please see Figure 6-7 , Figure 6 This is a structural diagram of the appliance provided in this application with its door open. Figure 7 yes Figure 6 Enlarged view of point A. In another embodiment of this application, an electrical appliance 1000 is also provided, comprising a body 200 and a door 300 disposed on the body 200. The body 200 is provided with the interlocking mechanism 100 of the above embodiment. The first micro switch 21, the second micro switch 22, and the third micro switch 23 in the interlocking mechanism 100 are connected to corresponding related circuits, so that when the first micro switch 21, the second micro switch 22, and the third micro switch 23 are all triggered, the electrical appliance 1000 performs power-off protection.

[0052] A drive assembly 310 is provided on the door body 300. The drive assembly 310 is used to drive the first sub-push rod assembly 31 and the second sub-push rod assembly 32 in the interlocking mechanism 100 to move when the door is opened. This embodiment does not limit the specific structure of the drive assembly 310 on the door body 300. For example, the drive assembly 310 may include a first drive member 301 and a second drive member 302, which may be protrusions provided on one side of the door body 300. When the door is opened, the first drive member 301 can extend into the first through hole 161 on the folded edge 16 of the bracket 10 in the interlocking mechanism 100 to push the first sub-push rod assembly 31 in the interlocking mechanism 100 to move, and the second drive member 302 can extend into the second through hole 162 on the folded edge 16 of the bracket 10 in the interlocking mechanism 100 to push the second sub-push rod assembly 32 in the interlocking mechanism 100 to move. It should be noted that when the first sub-push rod assembly 31 passes through the first through hole 161 and the second sub-push rod assembly 32 passes through the second through hole 162, the first drive member 301 and the second drive member 302 may not extend into the first through hole 161 and the second through hole 162 when the door is opened.

[0053] An electrical appliance provided in this application embodiment features an interlocking mechanism 100 (as described in the previous embodiment) on its main body 200 and a drive assembly 310 on its door 300. When the door 300 is opened, the drive assembly 310 drives the push rod assembly in the interlocking mechanism 100 to move, thereby triggering the switch assembly in the interlocking mechanism 100 and achieving power-off protection. After the door is closed, the first sub-push rod assembly 31 in the push rod assembly can return to its initial position under the action of the first reset structure 33, and the second sub-push rod assembly 32 can return to its initial position under the action of the second reset structure 34, thereby achieving circuit connection. The interlocking mechanism 100 effectively ensures the safety of the electrical appliance 1000. Furthermore, by providing the interlocking mechanism 100 in the above embodiment, the interlocking mechanism 100 occupies little space in the main body 200 of the electrical appliance 1000 and has a regular shape, facilitating the layout of other components in the main body 200.

[0054] This application provides an interlocking mechanism and an electrical appliance. The interlocking mechanism 100 includes a bracket 10, a switch assembly and a push rod assembly mounted on the bracket 10. The switch assembly includes a first micro switch 21, a second micro switch 22, and a third micro switch 23. The push rod assembly includes a first sub-push rod assembly 31. The first sub-push rod assembly 31 is movably mounted on the bracket 10 via a first reset structure 33. The first sub-push rod assembly 31 is used to trigger the first micro switch 21 and the second micro switch 22. The first micro switch 21 is located on one side of the first sub-push rod assembly 31. The first micro switch 21, the second micro switch 22, and the third micro switch 23 are all located within the length range of the first sub-push rod assembly 31 in the direction of movement of the first sub-push rod assembly 31. This solution, by movably mounting the first sub-push rod assembly 31 on the bracket 10, reduces the space occupied by the first sub-push rod assembly 31 when it is in motion, compared to a rotating mounting, thereby reducing the overall size of the interlocking mechanism 100. In addition, the switch assembly is compactly arranged in the moving direction of the first sub-push rod assembly 31, which reduces the size of the interlocking mechanism 100 in the moving direction of the first sub-push rod assembly 31, thereby improving the applicability of the interlocking mechanism 100 in the electrical appliance 1000.

[0055] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An interlocking mechanism, characterized in that, The interlocking mechanism includes: support; A switch assembly is fixedly mounted on the bracket, and the switch assembly includes a first micro switch, a second micro switch, and a third micro switch; The push rod assembly includes: The first sub-push rod assembly is movably disposed on the bracket via the first reset structure. The first sub-push rod assembly is used to trigger the first micro switch and the second micro switch. The first micro switch is disposed on one side of the first sub-push rod assembly, and the second micro switch is disposed on the other side of the first sub-push rod assembly. The entire first micro switch and the entire second micro switch are both located within the length range of the first sub-push rod assembly in the moving direction of the first sub-push rod assembly. The first sub-push rod assembly includes a first mounting part and a push plate part that are connected to each other. A sliding part is provided on the end face of the push plate part near the bracket. The sliding part is a hemispherical protrusion, an arc surface or a roller. The push rod assembly further includes a second sub-push rod assembly, which is movably disposed on the bracket via a second reset structure. The second sub-push rod assembly is used to trigger the third micro switch, which is located within the length range of the first sub-push rod assembly in the direction of movement of the first sub-push rod assembly.

2. The interlocking mechanism as described in claim 1, characterized in that, The bracket is provided with a first mounting base, and the first mounting base is provided with a first mounting hole; A first limiting protrusion is provided at the connection between the first mounting part and the push plate part. The end of the first mounting part away from the push plate part is engaged with the first mounting hole. The first reset structure is sleeved on the first mounting part and located between the first limiting protrusion and the first mounting base.

3. The interlocking mechanism as described in claim 2, characterized in that, The push plate has a first trigger protrusion on one side and a second trigger protrusion on the other side. The first trigger protrusion is used to trigger the first micro switch, and the second trigger protrusion is used to trigger the second micro switch.

4. The interlocking mechanism as described in claim 2, characterized in that, The bracket is provided with a first limiting plate and a second limiting plate, and the push plate is disposed between the first limiting plate and the second limiting plate.

5. The interlocking mechanism as described in claim 1, characterized in that, The bracket is provided with a guide groove, and the first sub-push rod assembly is provided with a guide protrusion that cooperates with the guide groove. The guide groove is used to limit the movement direction of the first sub-push rod assembly.

6. The interlocking mechanism as described in claim 1, characterized in that, The bracket is provided with a second mounting base, and the second mounting base is provided with a second mounting hole; The second sub-push rod assembly includes a second mounting part, which is provided with a second limiting protrusion. The second mounting part is fitted into the second mounting hole, and the second reset structure is sleeved on the second mounting part and located between the second limiting protrusion and the second mounting base.

7. The interlocking mechanism as described in claim 6, characterized in that, The third micro switch is located on the side of the second mounting base opposite to the second reset structure.

8. The interlocking mechanism as described in claim 1, characterized in that, The bracket is provided with a positioning post, which is used to position the installation position of the switch assembly.

9. An electrical appliance, characterized in that, The electrical appliance includes: The body is provided with the interlocking mechanism as described in any one of claims 1-8; A door body is disposed on the main body, and the door body is provided with a drive assembly, which is used to drive the push rod assembly in the interlocking mechanism to move when the door is opened.

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