CN115434575B

CN115434575B - Household appliance

Info

Publication number: CN115434575B
Application number: CN202110612423.9A
Authority: CN
Inventors: 张永忠; 李国保; 李小兵; 林奇
Original assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2024-04-16
Anticipated expiration: 2041-06-02
Also published as: CN115434575A

Abstract

The application discloses a household appliance. The household appliance comprises a door body and a switch assembly. The door body is provided with a handle, and the switch assembly comprises a driving mechanism and a cover plate. The driving mechanism is connected with the cover plate and is used for driving the cover plate to move to a first preset position or a second preset position, the cover plate shields the handle under the condition that the cover plate is at the first preset position, and the cover plate exposes the handle under the condition that the cover plate is at the second preset position. According to the household appliance, the hidden handle is arranged through the switch assembly, and the cover plate can shield the handle under the condition that the household appliance is not electrified, so that the appearance of the whole household appliance is smooth and attractive; under the condition that the household electrical appliance works, the cover plate can shield the handle, the door body cannot be directly opened, the protection effect is achieved, and the use safety of the household electrical appliance is improved.

Description

Household appliance

Technical Field

The application relates to the field of household appliances, in particular to a household appliance.

Background

In the related art, the household appliance can open the door through the handle arranged on the door, so that children can easily operate the door by mistake to open the door accidentally, and if the door is opened in the working process of the household appliance, hot air or steam in the cavity of the household appliance can be sprayed out by opening the door, thereby causing personal injury accidents.

Disclosure of Invention

The application provides a household appliance.

The household appliance of the embodiment of the application comprises a door body and a switch assembly, wherein the door body is provided with a handle, and the switch assembly comprises a driving mechanism and a cover plate. The driving mechanism is connected with the cover plate and is used for driving the cover plate to move to a first preset position or a second preset position, the cover plate shields the handle when the cover plate is located at the first preset position, and the cover plate exposes the handle when the cover plate is located at the second preset position.

In the household appliance, the switch assembly is provided with the hidden handle, and the cover plate can shield the handle under the condition that the household appliance is not electrified, so that the appearance of the whole household appliance is smooth and attractive; under the condition that the household electrical appliance works, the cover plate can shield the handle, the door body cannot be directly opened, the protection effect is achieved, and the use safety of the household electrical appliance is improved.

In some embodiments, the switch assembly further comprises a transmission mechanism, the transmission mechanism is connected with the driving mechanism and the cover plate, and the driving mechanism is used for driving the cover plate to move to the first preset position or the second preset position through the transmission mechanism.

In some embodiments, the door body is provided with a trigger switch, the trigger switch is connected with the driving mechanism, and the trigger switch is used for controlling the driving mechanism to drive the cover plate to move to the first preset position under the condition that the door body is closed in place.

In some embodiments, the household appliance is provided with a switch key, the switch key is connected with the driving mechanism, and the switch key is used for controlling the driving mechanism to drive the cover plate to move to the second preset position or to move to the first preset position under the condition of being operated.

In some embodiments, the switch assembly further comprises a position sensor, and the driving mechanism stops operating when the position sensor is triggered during movement of the cover plate from the first preset position to the second preset position or from the second preset position to the first preset position.

In some embodiments, the transmission mechanism includes a screw, a nut, a sliding component and a tow bar component, the nut is disposed on the screw, the screw is connected with the driving mechanism, the sliding component is connected with the tow bar component, the tow bar component is connected with the cover plate, the driving mechanism is used for driving the screw to rotate, and the nut can move on the screw along the length direction of the screw under the condition that the screw rotates so as to drive the sliding component to slide, and then drive the tow bar component and the cover plate to move.

In some embodiments, the sliding assembly includes a connection assembly, a securing assembly, and a mounting plate, the connection assembly being coupled to the nut, the securing assembly being disposed on the mounting plate to support the connection assembly.

In some embodiments, the connecting assembly includes a first connecting member connected to the nut, a second connecting member slidably connected to the first connecting member, and an elastic member penetrating the second connecting member and abutting between the fixing assembly and the first connecting member, the second connecting member being mounted on the fixing assembly.

In some embodiments, the driving mechanism comprises a motor and a gear assembly connected with the motor, wherein the gear assembly is connected with the screw, and the motor is used for driving the screw to rotate by driving the gear assembly to rotate.

In some embodiments, the switch assembly includes a guide assembly including a rail and a slider that is slidable on the rail, one of the slider and the rail connecting the cover plate.

In certain embodiments, the household appliance comprises a cavity, and the cover plate is flush with the cavity surface or the door surface.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural view of a home appliance according to an embodiment of the present application;

fig. 2 is another structural schematic view of the home appliance according to the embodiment of the present application;

fig. 3 is a further structural schematic diagram of the household appliance according to the embodiment of the present application;

FIG. 4 is an exploded schematic view of a switch assembly of an embodiment of the present application;

FIG. 5 is an enlarged schematic view at V in FIG. 4;

fig. 6 is a schematic diagram of a switch assembly of an embodiment of the present application.

The main feature reference numerals:

the household appliance 100, the door body 10 handle 11, the switch assembly 20, the driving mechanism 21, the motor 211, the connection motor 211, the gear assembly 212, the transmission mechanism 22, the screw 221, the nut 222, the sliding assembly 223, the connection assembly 2231, the first connection member 2231a, the second connection member 2231b, the elastic member 2231c, the fixing assembly 2232, the mounting plate 2233, the tow bar assembly 224, the cover plate 23, the position sensor 24, the guide assembly 25, the guide rail 251, the slide bar 252, the fixing plate 26, the cavity 30, and the switch key 40.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the embodiments of the present application and are not to be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description. Features defining "first", "second" may include one or more of the stated features, either explicitly or implicitly. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may be either fixedly connected, detachably connected, or integrally connected; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements or interaction relationship between the two elements. The specific meaning of the above terms in the embodiments of the present application is understood according to the specific circumstances.

In embodiments of the present application, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of embodiments of the application. In order to simplify the disclosure of embodiments of the present application, components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Embodiments of the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and do not in itself indicate a relationship between the various embodiments and/or arrangements discussed. Embodiments of the present application provide examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1, 2 and 3 together, a household appliance 100 according to an embodiment of the present application includes a door 10 and a switch assembly 20. The door body 10 is provided with a handle 11, the switch assembly 20 comprises a driving mechanism 21 and a cover plate 23, the driving mechanism 21 is connected with the cover plate 23, the driving mechanism 21 is used for driving the cover plate 23 to move to a first preset position L1 or a second preset position L2, the cover plate 23 shields the handle 11 under the condition that the cover plate 23 is positioned at the first preset position L1, and the cover plate 23 exposes the handle 11 under the condition that the cover plate 23 is positioned at the second preset position L2.

In the household appliance 100 of the embodiment of the application, the switch assembly 20 is provided with the hidden handle 11, and the cover plate 23 can shield the handle 11 when the household appliance 100 is not electrified, so that the whole household appliance 100 has a flat and attractive appearance; under the condition that the household appliance 100 works, the cover plate 23 can shield the handle 11 and can not directly open the door body 10, so that the household appliance 100 has a protection function and the use safety of the household appliance 100 is improved.

The home appliance 100 may include, but is not limited to, a microwave oven, a steam box, a dish washer, a micro-steaming and baking all-in-one machine, a microwave cooker, and the like.

The home appliance 100 according to the embodiment of the present application is illustrated by taking a steam box as an example, and the home appliance 100 is illustrated by taking a steam box as an example for convenience of description of implementation of the present application, and should not be construed as limiting the protection scope of the present application.

Specifically, in some embodiments, the steaming box includes a door 10, a switch assembly 20, and a cavity 30, the switch assembly 20 may be disposed on the door 10, and the switch assembly 20 may also be disposed on the cavity 30, which is not limited herein.

The door 10 is connected with the cavity 30. The cavity 30 has a cooking cavity therein, and a front side of the cooking cavity has an opening. In some embodiments, the door 10 is rotatably coupled to the front of the cavity 30, and the door 10 is coupled to the cavity 30 to open and close the opening. That is, the cavity 30 has an opening with an opened front side, and the door 10 is used to open and close a cooking cavity for placing food to be cooked. The door body 10 can be provided with the handle 11, so that the handle 11 can be conveniently operated, and the door body 10 can be conveniently opened and closed.

In some embodiments, the switch assembly 20 further includes a transmission mechanism 22, where the transmission mechanism 22 is connected to the driving mechanism 21 and the cover plate 23, and the driving mechanism 21 is used to drive the cover plate 23 to move to the first preset position L1 or the second preset position L2 through the transmission mechanism 22.

Referring to fig. 4, the driving mechanism 21 can drive the transmission mechanism 22 to move to drive the cover plate 23, and the cover plate 23 shields the handle 11 when the cover plate 23 is at the first preset position L1, so that a user cannot directly open the door 10 through the handle 11, which has a protection function and improves the use safety of the household appliance 100. When the cover 23 is at the second preset position L2, the cover 23 exposes the handle 11, so that the user can conveniently open and close the door 10.

It should be noted that the handle 11 may be a recessed handle (as shown in fig. 3), and the recessed handle may be embedded in the top of the door body 10, and the recessed handle may be integrally formed with the door body 10, so that the process procedure can be reduced, and the cost can be saved. Meanwhile, the groove type handle is flat and attractive in appearance and high in practicability.

Referring to fig. 1 and 2 again, in some embodiments, the household appliance 100 is provided with a switch key 40, the switch key 40 is connected to the driving mechanism 21, and the switch key 40 is used to control the driving mechanism 21 to drive the cover plate 23 to move to the second preset position L2 or to move to the first preset position L1 when operated.

In one embodiment, the switch key 40 may be a virtual key or a physical key. The switch 40 has a child lock function, the switch 40 may be disposed on the door body 10, and the switch 40 may also be disposed on the cavity 30, which is not limited herein.

In one embodiment, if the switch key 40 is a virtual key, the switch key 40 is connected to the driving mechanism 21, and the user may touch the switch key 40 to move the cover 23 from the first preset position L1 to the second preset position L2, or may move the cover 23 from the second preset position L2 to the first preset position L1.

In another embodiment, if the switch key 40 is a physical key, the switch key 40 is connected to the driving mechanism 21, and the user may press the switch key 40 to move the cover 23 from the first preset position L1 to the second preset position L2, or may move the cover 23 from the second preset position L2 to the first preset position L1. That is, the user can change the position of the cover plate 23 using the switch key 40 such that the cover plate 23 shields the handle 11 or exposes the handle 11.

The door body 10 can be pulled open by the handle after the cover plate 23 is exposed to the handle 11 by using the switch key 40. After the door body 10 is closed, the cover plate 23 shields the handle 11 by using the switch key 40, so that the appearance is smooth and attractive.

In some embodiments, the door body 10 is provided with a trigger switch, the trigger switch is connected to the driving mechanism 21, and the trigger switch is used for controlling the driving mechanism 21 to drive the transmission mechanism 22 to drive the cover plate 23 to move to the first preset position L1 when the door body 10 is closed in place.

Specifically, the trigger switch may be disposed on the door body 10, and the trigger switch may be a mechanical structure or a sensor. The trigger switch may determine whether the door 10 is closed in place by mechanical compression, sensor sensing, or the like. When the door body 10 is closed in place, the driving mechanism 21 can be controlled to drive the transmission mechanism 22 to drive the cover plate 23 to move to the first preset position L1, that is, the cover plate 23 can be made to move and the handle 11 can be shielded. In this way, when the door 10 is closed in place, the handle 11 can be automatically shielded, and the user does not need to press a button to close. The trigger switch is convenient and quick, and can provide better use feeling for users.

Referring to fig. 4, 5 and 6, in some embodiments, the switch assembly 20 further includes a position sensor 24, and the driving mechanism 21 stops operating when the position sensor 24 is triggered during the movement of the cover 23 from the first preset position L1 to the second preset position L2 or from the second preset position L2 to the first preset position L1.

In one embodiment, the position sensor 24 may be a micro switch, the transmission mechanism 22 is driven by the driving mechanism 21 to drive the cover plate 23 to move, and the transmission mechanism 22 is driven by the driving mechanism 21 to move, so that the cover plate can be moved to the first preset position L1 or the second preset position L2.

The transmission mechanism 22 can be in contact with the micro switch, and the driving mechanism 21 is controlled to stop running when the transmission mechanism 22 is in contact with the micro switch. In this way, the movement of the transmission 22 can be stopped and the cover 23 can rest in the preset position, i.e. the first preset position L1 or the second preset position L2.

The position sensor 24 may be a distance sensor, and may control the driving mechanism 21 to stop operating when the distance between a certain structure of the transmission mechanism 22 and the distance sensor is within a threshold value.

In one example, the transmission 22 includes a positioning bracket that follows the movement of the transmission 22 when the drive 21 is in operation.

Specifically, during the movement of the cover plate 23 from the first preset position L1 to the second preset position L2, the positioning bracket also moves, and in the case that the distance between the positioning bracket and the distance sensor is within the threshold value, it can be considered that the cover plate 23 has reached the second preset position L2 or is about to reach the second preset position L2, at which time the driving mechanism 21 stops operating.

It should be noted that the position sensor 24 may be triggered by the transmission mechanism 22, by a component connected to the cover plate 23, or by the cover plate 23 itself, which is not limited herein. The present application illustrates the triggering of the position sensor 24 by the transmission mechanism 22, and the triggering of the position sensor 24 by the transmission mechanism 22 is for convenience of description of the implementation of the present application, and should not be construed as limiting the scope of protection of the present application.

Referring again to fig. 4 and 5, in some embodiments, the driving mechanism 21 includes a motor 211, a gear assembly 212 connected to the motor 211, the gear assembly 212 is connected to a screw 221, and the motor 211 is configured to rotate by driving the gear assembly 212 to rotate the screw 221.

Specifically, the motor 211 includes a driving motor that can convert electric energy into mechanical energy, and the driving motor is a power source of the switch assembly 20. The driving motor is connected with the gear assembly 212, the gear assembly 212 can comprise a plurality of gears, the plurality of gears comprise a driving gear and a driven gear, the driving gear is meshed with the driven gear, the motor 211 can drive the driving gear to rotate, and the driving gear drives the driven gear, so that the screw 221 is driven to rotate through the driven gear. It will be appreciated that in other embodiments, the gear assembly 212 may employ more gear sets rather than being limited to 2 gears. Of course, in some embodiments, the gear assembly 212 may drive the screw 221 using other transmission methods, such as a worm-and-gear transmission, and is not limited in this regard.

In some embodiments, the motor 211 may include a motor bracket for mounting and supporting the motor so that the motor can be stably supported.

Referring to fig. 5 again, in some embodiments, the transmission mechanism 22 includes a screw 221, a nut 222, a sliding component 223 and a towing bar component 224, the nut 222 is disposed on the screw 221, the screw 221 is connected to the driving mechanism 21, the sliding component 223 is connected to the towing bar component 224, the towing bar component 224 is connected to the cover plate 23, the driving mechanism 21 is used for driving the screw 221 to rotate, and the nut 222 can move on the screw 221 along the length direction of the screw 221 under the condition that the screw 221 rotates to drive the sliding component 223 to slide, so as to drive the towing bar component 224 and the cover plate 23 to move.

Specifically, the transmission mechanism 22 may be made of a metal material, where the screw 221 is connected to the gear assembly 212, the gear assembly 212 drives the screw 221 to rotate, the screw 221 is threaded, the nut 222 is disposed on the screw 221, and the nut 222 is also threaded and mates with the thread on the screw 221. The nut 222 can be moved along the length direction of the screw 221 by a screw thread, and the screw 221 is connected with the sliding component 223 by welding, bonding, clamping and other connection modes. Thus, in the case where the nut 222 moves along the length direction of the screw 221, the slide member 223 also moves along the length direction of the screw 221. In one embodiment, the sliding component 223 is provided with a buckle, and the mop rod component 224 can be clamped on the sliding component 223 through the buckle, so that the mop rod component 224 can also move along the length direction of the screw 221 under the driving of the sliding component 223. The cover plate 23 can be screwed with the tow bar assembly 224, and the tow bar assembly 224 can drive the cover plate 23 to move to the first preset position L1 or the second preset position L2.

It should be noted that the towing bar assembly 224 includes a towing bar, and the towing bar may be engaged on the sliding assembly 223.

Referring again to fig. 5, in some embodiments, the sliding assembly 223 includes a connection assembly 2231, a securing assembly 2232, and a mounting plate 2233, the connection assembly 2231 coupled to the nut 222, the securing assembly 2232 disposed on the mounting plate 2233 supporting the connection assembly 2231.

Specifically, the sliding assembly 223 may include a plurality of securing assemblies 2232, and in one embodiment, the sliding assembly 223 includes four securing assemblies 2232, the four securing assemblies 2232 securing the connection assemblies 2231, respectively, to secure the connection assemblies 2231 to the mounting plate 2233. The connection component 2231 can be fixed on the fixed component 2232 in a clamping manner, and the connection component 2231 and the fixed component 2232 can be in an i-shaped arrangement, so that the sliding component 223 can be ensured to move more stably.

The securing assembly 2232 may be provided on the mounting plate 2233 by means of adhesive, welding, etc., without limitation.

The fixing member 2232 may be equivalent to a buckle with a groove, so that the connecting component 2231 may be clamped in the fixing member 2232, and the connecting component 2231 and the fixing component 2232 connected by the clamping manner are convenient to be disassembled and replaced.

In some embodiments, the connection assembly 2231 includes a first connection member 2231a, a second connection member 2231b, and an elastic member 2231c, the first connection member 2231a being coupled to the nut 222, the second connection member 2231b being slidably coupled to the first connection member 2231a, the elastic member 2231c being disposed through the second connection member 2231b and abutting between the fixing assembly 2232 and the first connection member 2231a, the second connection member 2231b being mounted on the fixing assembly 2232.

Specifically, the first connecting piece 2231a may be fixedly connected with the nut 222 by welding, bonding, or the like, the first connecting piece 2231a is provided with a hole structure, and the second connecting piece 2231b may be inserted into the first connecting piece 2231a through the hole structure. In one embodiment, the connection assembly 2231 includes two first connection members 2231a and two second connection members 2231b, wherein one first connection member 2231a and one second connection member 2231b are used as one group, and the other first connection member 2231a and the other second connection member 2231b are used as the other group, and the two connection members are respectively arranged at two ends of the nut 222, so that the structure of the connection assembly 2231 can be more stable. The connecting assembly 2231 further includes two elastic assemblies 2231c, the two elastic assemblies 2231c are respectively disposed on the two second connecting members 2231b in a penetrating manner, and two ends of the two second connecting members 2231b are respectively provided with a supporting structure, so that the supporting structure can prevent the elastic structures 2231c from being ejected under a compressed state. In one embodiment, the connection assembly 2231 may include four elastic structures 2231c, and two elastic structures 2231c are formed as a group and respectively pass through the second connection member 2231b and are located at two ends of the first connection member 2231 a. The elastic member 2231c can avoid the rigid connection of the connection assembly 2231, so that the sliding assembly 223 has a buffering function during the movement, and the moving speed of the cover plate 23 is gradually reduced during the moving state to the static state of the cover plate 23, thereby avoiding the collision between the cover plate 23 and the cavity 30.

Referring to fig. 4 and 6 together, in some embodiments, the switch assembly 20 includes a guide assembly 25, the guide assembly 25 includes a guide rail 251 and a slide bar 252, and the slide bar 252 is capable of sliding on the guide rail 251, the slide bar 252 and one of the cover plates 23 of the guide rail 251.

Specifically, the cover plate 23 may be connected to one of the slide 252 and the guide rail 251 through the transmission mechanism 22.

In some embodiments, the home appliance 100 includes a fixing plate 26, and the switch assembly 20 may be mounted on the fixing plate 26, wherein the driving mechanism 21 and the position sensor 24 may be fixedly mounted on the fixing plate 26 by screws and nuts, and the guide rail 251 may be fixedly mounted on the fixing plate 26 by screws and nuts. The sliding strip 252 is matched with the guide rail 251, the sliding strip 252 can move on the guide rail 251 at a certain distance, the sliding strip 252 is connected with the towing bar assembly 224 through the connecting structure, and therefore the towing bar assembly 224 can drive the sliding strip 252 to slide on the guide rail 251, that is, the sliding strip 252 is connected with the transmission mechanism 22. In another embodiment, the slide 252 is disposed on the fixed plate 26, and the guide rail 251 is connected to the towing bar assembly 224 through a connection structure, so that the towing bar assembly 224 can drive the guide rail 251 to slide on the slide 252, that is, the guide rail 251 is connected to the transmission mechanism 22.

In some embodiments, the household appliance 100 includes a cavity 30, and the cover plate 23 is flush with the surface of the cavity 30 or the surface of the door 10.

In some embodiments, the fixing plate 26 may be disposed on the cavity 30, or may be disposed in the cavity 30, which is not limited herein. It should be noted that the cover plate 23 is flush with the surface of the cavity 30, so that the appearance of the household appliance is smooth and attractive.

In one embodiment, the cover plate 23 may be disposed on the top surface of the cavity 30, and the cover plate 23 is flush with the top surface of the cavity 30.

In another embodiment, the cavity 30 includes side surfaces, the cover plate 23 may be disposed on any one of the side surfaces, and the cover plate 23 is flush with the side surface of the cavity 30.

In yet another embodiment, the door 10 may be a push-pull door, and the cover plate 23 may be disposed on the surface of the door 10 and flush with the surface of the door.

In some embodiments, the home appliance 100 further includes a controller and a receiving member, and a user may use the electronic device to communicate with the home appliance 100, and the user may use the electronic device to control the switching member 40. The home appliance 100 may receive the operation parameter information using at least one of: bluetooth module, WIFI subassembly, mobile communication module, USB interface, TYPE-C interface. Electronic devices include, but are not limited to, smart phones, tablet computers, personal computers, wearable smart devices, etc. with communication capabilities. The user can arbitrarily select the electronic device to be communicatively connected with the home appliance 100. The electronic device may be communicatively connected to the home appliance 100 by bluetooth, wireless lan, etc. In this way, the user's use feeling can be improved, and the household appliance 100 can be used more conveniently and rapidly.

The controller may receive the wireless signal and control the switch key 40 according to a user's instruction on the electronic device, so that the electronic device may be used to control the cover 23. It should be noted that the controller may be a single chip microcomputer chip, and a processor, a memory, a communication module, etc. are integrated. The controller may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose controllers, digital signal processors (Digital Signal Processor, DSPs), application specific integrated circuits (Application Specific Integrated Circuit, ASICs), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the embodiments described above by those of ordinary skill in the art within the scope of the application.

Claims

1. A household appliance, comprising:

the door body is provided with a handle;

the switch assembly comprises a driving mechanism and a cover plate, wherein the driving mechanism is connected with the cover plate, the driving mechanism is used for driving the cover plate to move to a first preset position or a second preset position, the cover plate shields the handle when the cover plate is positioned at the first preset position, and the cover plate exposes the handle when the cover plate is positioned at the second preset position;

the household appliance is provided with a switch key, the switch key is connected with the driving mechanism, the switch key is used for controlling the driving mechanism to drive the cover plate to move to the second preset position or to the first preset position under the condition of being operated, and the switch key has a child lock effect;

the switch assembly further comprises a transmission mechanism, the transmission mechanism is connected with the driving mechanism and the cover plate, and the driving mechanism is used for driving the cover plate to move to the first preset position or the second preset position through the transmission mechanism;

the driving mechanism comprises a screw, a nut, a sliding component and a pulling rod component, wherein the nut is arranged on the screw, the screw is connected with the driving mechanism, the sliding component is connected with the pulling rod component, the pulling rod component is connected with the cover plate, the driving mechanism is used for driving the screw to rotate, and the nut can move on the screw along the length direction of the screw under the condition that the screw rotates so as to drive the sliding component to slide, and then drive the pulling rod component and the cover plate to move;

the sliding assembly comprises a connecting assembly, a fixing assembly and a mounting plate, wherein the connecting assembly is connected with the nut, and the fixing assembly is arranged on the mounting plate and used for supporting the connecting assembly;

the connecting assembly comprises a first connecting piece, a second connecting piece and an elastic piece, wherein the first connecting piece is connected with the nut, the second connecting piece is connected with the first connecting piece in a sliding mode, the elastic piece is arranged on the second connecting piece in a penetrating mode and abuts against the fixing assembly and the first connecting piece, and the second connecting piece is arranged on the fixing assembly.

2. The household appliance according to claim 1, wherein the door body is provided with a trigger switch, the trigger switch is connected with the driving mechanism, and the trigger switch is used for controlling the driving mechanism to drive the cover plate to move to the first preset position under the condition that the door body is closed in place.

3. The household appliance according to claim 1, wherein the switch assembly further comprises a position sensor, wherein the driving mechanism stops operating when the position sensor is triggered during movement of the cover plate from the first preset position to the second preset position or from the second preset position to the first preset position.

4. The household appliance according to claim 1, wherein the driving mechanism comprises a motor and a gear assembly connected with the motor, the gear assembly is connected with the screw, and the motor is used for driving the gear assembly to rotate so as to drive the screw to rotate.

5. The household appliance according to claim 1, wherein the switch assembly comprises a guide assembly comprising a rail and a slider, the slider being slidable on the rail, one of the slider and the rail connecting the cover plate.

6. The household appliance of claim 1, wherein the household appliance comprises a cavity, and the cover plate is flush with the cavity surface or the door surface.