CN217719395U - Key structure and household appliance - Google Patents

Abstract

The utility model provides a button structure, including the support, the computer board is installed to one side of support, and the opposite side of support is provided with the key cap that is used for triggering the key switch on the computer board, and the support includes the first support and the second support of mutual lock, presss from both sides between first support and the second support and is equipped with the water proof membrane. The utility model discloses a set up the support and include first support and second support two parts to set up the water proof membrane clamp and establish between first support and second support, can improve the steadiness of water proof membrane installation, prevent that the keying structure from in the use, because of the water proof membrane dislocation, remove and cause the unable normal use's of keying structure condition to take place. The utility model also provides an install domestic appliance of this button structure.

Description

Key structure and household appliance

Technical Field

The utility model belongs to the technical field of electrical apparatus, concretely relates to button structure still relates to a install domestic appliance of this button structure.

Background

With the increasing popularity and universality of household appliances and the increasing frequency of safety accidents of household appliances in recent years, consumers have raised requirements on the safety of the use of the household appliances, and the requirements of relevant standards of the industry of the household appliances are also improved and improved in response to the call of the consumers.

For example, in the case of a washing machine, especially a drum washing machine, the requirement for waterproof performance is that, although the computer board is changed from a strong and weak current integrated type to a strong and weak current separated type, the computer board is only weak current, but the potential safety hazard cannot be completely avoided.

At present, a common solution to this situation is to add a waterproof component on a suitable part between the mechanical key and the computer board or at a suitable position, to ensure the waterproof effect and the hand feeling of the key, the waterproof component is set as a waterproof membrane, and a support is arranged on the key to support the waterproof membrane. However, the influence of waterproof membrane material, the fixed effect of waterproof membrane is poor, and the button causes the waterproof membrane dislocation easily in use and transportation, and the dismouting needs again to the button after the waterproof membrane dislocation, seriously influences user's use and experiences.

In view of this, the present invention is provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in overcoming prior art's is not enough, provides a button structure, includes first support and second support two parts through setting up the support to set up the water proof membrane clamp and establish between first support and second support, can improve the steadiness of water proof membrane installation, overcome among the prior art because of the water proof membrane dislocation, not hard up the unable normal use's of messenger button structure problem.

In order to solve the technical problem, the utility model adopts the following basic concept:

the utility model provides a button structure, includes the support, and the computer board is installed to one side of support, and the opposite side of support is provided with the button cap that is used for triggering the key switch on the computer board, and the support includes first support and the second support of mutual lock, presss from both sides between first support and the second support and is equipped with the water proof membrane.

Furthermore, a limiting groove matched with the waterproof film in shape is formed in the end face of one side, opposite to the second support, of the first support, and the waterproof film is arranged in the limiting groove;

the groove depth of the limiting groove is smaller than or equal to the thickness of the waterproof film.

Furthermore, at least two first positioning columns and at least two second positioning columns are respectively arranged on the contact surfaces of the first support and the waterproof membrane with the second support;

the second support is provided with a first positioning groove and a second positioning groove which are respectively matched with the first positioning column and the second positioning column in a one-to-one correspondence manner.

Further, a hollow hole is formed in the middle of the first support, and a key body is arranged in the hollow hole; at least part of the key cap is embedded in the hollow hole and is abutted against the key body;

the button body passes through the elastic cantilever to be connected on the inner wall in fretwork hole.

Furthermore, a drainage groove communicated with the inner side and the outer side of the hollow hole is formed in the bottom of the first support;

the drainage grooves are correspondingly arranged on the two opposite side walls of the hollow hole.

Furthermore, an installation plate perpendicular to the second support is arranged on the end face, away from the first support, of the second support, a buckle is arranged on the installation plate, and the computer board is clamped between the buckle and the second support;

the mounting plate comprises at least two oppositely arranged plates.

Furthermore, a coaming which extends vertically away from the first support along the outer edge of the second support is arranged on the second support;

the two oppositely arranged mounting plates and the enclosing plate surround to form a mounting groove for accommodating the computer board.

Furthermore, the connection of the groove bottom of the mounting groove and the groove wall is provided with buffer pads which are uniformly arranged along the circumferential direction of the computer board.

A household appliance comprises a machine body and a door body, wherein the key structure is arranged on the machine body and/or a table top of the door body.

Further, the table top is provided with an installation opening, and the key cap is embedded in the installation opening from the inner side of the table top;

the second support is connected with the inner wall of the table board through a connecting piece, and the first support and the waterproof membrane are clamped between the second support of the table board.

After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has:

1. the utility model discloses a set up the support and include first support and second support two parts to set up the water proof membrane clamp and establish between first support and second support, can improve the steadiness of water proof membrane installation, prevent that the keying structure from causing the unable normal use condition of keying structure to take place because of the water proof membrane dislocation, removal in the use, improve user's use and experience.

2. The utility model discloses a set up first reference column and the first constant head tank of mutually supporting between first support and second support, set up the second reference column and the second constant head tank of mutually supporting between water proof membrane and second support, can improve the installation effectiveness and the installation accuracy of support and water proof membrane, simultaneously, can improve the location effect of water proof membrane, further prevent that the water proof membrane from taking place the dislocation.

3. The utility model discloses a set up the drainage recess on first support, make the button structure in the use, if on the water droplet falls on the water proof membrane, the water droplet can flow the button structure through the drainage recess, avoids piling up on the surface of water proof membrane.

4. The utility model discloses a set up the computer board in the second support one side of keeping away from first support to set up the bounding wall in week side of second support, can prevent effectively that the water that flows down from the water proof membrane from reaching the computer board on, increase the life of security and button structure.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a diagram of an assembly structure of a key structure and a table top in an embodiment of the present invention;

FIG. 2 is an exploded view of the embodiment of the present invention shown in FIG. 1;

fig. 3 is an enlarged schematic structural view of a point a in fig. 2 according to an embodiment of the present invention;

fig. 4 is a schematic view of the overall structure of the key structure in the embodiment of the present invention;

fig. 5 is a schematic bottom structure diagram of the first bracket according to the embodiment of the present invention;

fig. 6 is a schematic bottom structure view of a waterproof membrane according to an embodiment of the present invention;

fig. 7 is a schematic structural view of the top of a second bracket according to an embodiment of the present invention;

FIG. 8 is a schematic view of an assembly structure of the computer board and the second bracket according to an embodiment of the present invention;

fig. 9 is a schematic bottom structure view of a second bracket according to an embodiment of the present invention;

fig. 10 is a schematic structural view of the embodiment of the present invention in which the key structure is disposed on the door body;

fig. 11 is a schematic structural view of the embodiment of the present invention in which the key structure is disposed on the body.

Description of the main elements in the figures:

100. a key structure; 101. a first bracket; 1011. a key body; 1012. a flexible cantilever; 1013. a fourth positioning column; 1014. a drainage groove; 1015. a limiting column; 1016. a first positioning post; 1017. a limiting groove; 1018. hollowing out holes; 102. a second bracket; 1021. a first positioning groove; 1022. a second positioning groove; 1023. an outlet hole; 1024. mounting a column; 1025. mounting a plate; 1026. buckling; 1027. a cushion pad; 103. a water-resistant film; 1031. a boss portion; 1032. a second positioning column; 1033. a recessed portion; 1034. a waterproof membrane body; 104. a key cap; 105. a computer board; 1051. a key switch; 200. a table top; 201. an installation port; 300. a body; 400. a door body.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solution in the embodiments, and the following embodiments are used to illustrate the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1 to 9, in the embodiment of the present invention, a key structure 100 is described, which includes a support and a waterproof film 103 mounted on the support. In this embodiment, the bracket is a split structure, and includes a first bracket 101 and a second bracket 102 that are fastened to each other, and the waterproof film 103 is sandwiched between the first bracket 101 and the second bracket 102. The waterproof membrane 103 is made of flexible materials, and through the arrangement, on one hand, the installation stability of the waterproof membrane 103 can be improved, the situation that the key structure 100 cannot be used normally due to dislocation and movement of the waterproof membrane 103 in the use process of the key structure 100 is prevented, and the use experience of a user is improved; on the other hand, the waterproof film 103 also functions as a buffer, and can improve the mounting tightness of the first bracket 101 and the second bracket 102.

In this embodiment, the end face of the opposite side of the first support 101 and the second support 102 is provided with a limiting groove 1017 matched with the shape of the waterproof film 103, the waterproof film 103 is embedded in the limiting groove 1017, and the depth of the limiting groove 1017 is smaller than or equal to the thickness of the waterproof film 103. Preferably, the depth of the limiting groove 1017 is smaller than the thickness of the waterproof film 103, so that the waterproof film 103 is tightly clamped between the first bracket 101 and the second bracket 102 after the key structure 100 is assembled.

In this embodiment, the limiting groove 1017 is disposed in the middle of the bottom surface of the first support 101, and penetrates through the bottom surface of the first support 101 along the front-back direction, and the first support 101 abuts against the end surface of the second support 102 through the portions of the left side and the right side of the limiting groove 1017. Waterproof membrane 103 sets up in spacing recess 1017, its shape and spacing recess 1017 looks adaptation, is compressed tightly on the terminal surface of second support 102 by the tank bottom of spacing recess 1017.

Preferably, the contact surfaces of the first bracket 101 and the second bracket 102 are respectively provided with a first positioning column 1016 and a first positioning groove 1021 which are matched with each other, the number of the first positioning columns 1016 is at least two, and the first positioning grooves 1021 and the first positioning columns 1016 are arranged in a one-to-one correspondence manner. When the positioning device is installed, the first positioning column 1016 is correspondingly installed in the first positioning groove 1021, so that the relative positions of the first bracket 101 and the second bracket 102 are limited, and meanwhile, the positioning effect can be improved, so that the installation efficiency between the first bracket 101 and the second bracket 102 is improved. In this embodiment, at least a part of the first positioning columns 1016 are disposed on the end surface of the first bracket 101, and preferably, all of the first positioning columns 1016 are disposed on the end surface of the first bracket 101, and are disposed in four rows symmetrically arranged in the left-right direction.

Preferably, the contact surfaces of the waterproof membrane 103 and the second bracket 102 are respectively provided with a second positioning column 1032 and a second positioning groove 1022 which are matched with each other. The number of the second positioning columns 1032 is at least two, and the second positioning grooves 1022 and the second positioning columns 1032 are arranged in a one-to-one correspondence manner. When installed, the second positioning posts 1032 are correspondingly installed in the second positioning grooves 1022 to define the relative position between the waterproofing membrane 103 and the second support 102. In this embodiment, at least a part of the second positioning columns 1032 are disposed on the waterproof film 103, and preferably, all of the second positioning columns 1032 are disposed on the waterproof film 103, specifically, on the end surface of the waterproof film 103 corresponding to the second support 102 and near the edge.

Preferably, in this embodiment, a third positioning column and a third positioning groove which are matched with each other are further disposed on an end surface of a mutual contact portion between the waterproof film 103 and the first support 101, specifically, the plurality of third positioning grooves are disposed on an end surface of the waterproof film 103 close to one side of the first support 101, and the third positioning columns are disposed on the end surface of the first support 101 in a one-to-one correspondence manner. During installation, the waterproof membrane 103 is installed on the second support 102, the second positioning column 1032 on the waterproof membrane 103 is installed in the second positioning groove 1022 on the second support 102, then the first support 101 is installed, the first positioning column 1016 and the third positioning column on the first support 101 are correspondingly installed in the first positioning groove 1021 on the second support 102 and the third positioning groove on the waterproof membrane 103 respectively, and the positioning effect of the support on the waterproof membrane 103 is enhanced.

As shown in fig. 5, in the embodiment, a hollow-out hole 1018 corresponding to the waterproof film 103 is formed in the middle of the first support 101, and a key body 1011 is disposed in the hollow-out hole 1018. Preferably, the key body 1011 is connected to the inner wall of the hollow aperture 1018 by the elastic cantilever 1012.

In this embodiment, the key body 1011 is configured as a strip, the elastic cantilever 1012 is configured as a U shape, one end of the elastic cantilever is connected to the sidewall of the key structure 100, and the other end of the elastic cantilever is connected to the inner wall of the hollow 1018. Specifically, the strip-shaped key body 1011 is transversely disposed in the hollow hole 1018, the U-shaped elastic cantilever 1012 is disposed between the key body 1011 and the inner wall of the hollow hole 1018 parallel to the key body 1011, one end of the elastic cantilever 1012 is connected to the side wall of the key body 1011, and the other end of the elastic cantilever 1012 extends along the length direction of the key body 1011 and is connected to the inner wall of the hollow hole 1018 corresponding to the end of the key body 1011. Preferably, in this embodiment, four elastic cantilevers 1012 are provided, and are symmetrically disposed at four corners of the hollow 1018, respectively. When the key body 1011 is pressed, the elastic cantilever 1012 elastically deforms, the key body 1011 moves downwards under the action of external pressure, and when the external pressure disappears, the key body 1011 rebounds under the action of the elastic cantilever 1012.

In this embodiment, the bottom of the first bracket 101 is provided with a drainage groove 1014 communicating the inner side and the outer side of the hollow-out hole 1018. In the use process of the key structure 100, if water drops fall on the waterproof film 103, the water drops can flow out of the key structure 100 through the drainage grooves 1014 and avoid accumulating on the surface of the waterproof film 103. The drainage grooves 1014 are correspondingly disposed on two opposite sidewalls of the hollow 1018.

Preferably, in this embodiment, the key body 1011 is disposed obliquely or horizontally, the drainage grooves 1014 are formed on the upper and lower sidewalls of the hollow 1018, the water droplets in the hollow 1018 are discharged from the drainage grooves 1014 on the lower side, and the drainage grooves 1014 on the upper side can balance the air pressure in the hollow 1018, so that the water droplets can be smoothly discharged.

As shown in fig. 3, in this embodiment, the key structure 100 further includes a computer board 105, the computer board 105 is mounted on a side of the second frame 102 away from the first frame 101, and the computer board 105 is mounted on the second frame 102 through a mounting plate 1025.

Specifically, the mounting plate 1025 is arranged on the end face of the second support 102 far away from the first support 101, the mounting plate 1025 is perpendicular to the end face of the second support 102, a notch is formed in the middle of the mounting plate 1025, and a buckle 1026 is arranged in the notch. One end of the buckle 1026 is connected to the inner wall of the side, away from the second support 102, of the notch, the other end of the buckle extends towards the side, close to the second support 102, of the buckle 1026, a clamping protrusion protruding towards the side, close to the second support 102, of the buckle 1026 is arranged, and the edge of the computer board 105 is clamped between the clamping protrusion and the second support 102, so that installation is completed.

In this embodiment, the mounting plate 1025 comprises at least two mounting plates.

Preferably, in this embodiment, a surrounding plate extending vertically from the outer edge of the second bracket 102 to the position away from the first bracket 101 is disposed on the second bracket 102, and the computer board 105 is installed in a space surrounded by the surrounding plate. Through setting up the bounding wall, can prevent effectively that water from flowing down from waterproof membrane 103 from reaching computer board 105 on, increase the security and the life of button structure 100.

In this embodiment, two mounting plates 1025 are oppositely disposed on the second bracket 102, the root of the mounting plate 1025 and two sidewalls of the enclosure plate are configured to jointly enclose a mounting groove adapted to the shape of the computer board 105, and the computer board 105 is mounted in the mounting groove. The clips 1026 on the mounting plate 1025 are disposed opposite to each other and respectively clip to the edges of the opposite sides of the computer board 105.

Preferably, the side wall of the side of the clamping protrusion on the clamping buckle 1026, which is far away from the second bracket 102, is provided with an inclined plane which inclines from the root of the clamping protrusion to the second bracket 102, so as to guide the computer board 105 and facilitate the installation of the computer board 105. Specifically, in the process of loading the computer board 105, the edge of the computer board 105 abuts against the inclined surface, so that the buckle 1026 generates elastic deformation towards the outer side of the mounting groove, and after the computer board 105 is loaded, the buckle 1026 rebounds to connect the computer board 105 between the convex block and the second support 102.

Preferably, in this embodiment, a buffer 1027 arranged along the circumferential direction of the computer board 105 is arranged at a connection portion between the groove bottom and the groove wall of the mounting groove, and the computer board 105 abuts against the mounting groove through the buffer 1027. Specifically, the cushions 1027 are arranged at the root parts of the enclosing plate and the mounting plate 1025, the cushions 1027 are uniformly distributed along the circumference of the computer board 105, at least part of the cushions 1027 are arranged between the groove bottom of the mounting groove and the computer board 105, and at least part of the cushions 1027 are arranged between the groove wall of the mounting groove and the computer board 105. The buffer 1027 is made of a flexible material, and may be specifically configured as a rubber material. By providing the buffer 1027, the computer board 105 can be prevented from being damaged during installation, and the stability of the computer board 105 can be improved to prevent the computer board 105 from loosening.

In this embodiment, the computer board 105 is provided with a key switch 1051 corresponding to the key body 1011, as shown in fig. 7, the second bracket 102 is provided with a protruding hole 1023 matching with the key switch 1051, and the key switch 1051 penetrates through the protruding hole 1023 and at least partially extends to the opposite side of the second bracket 102.

As shown in fig. 6, the waterproof film 103 includes a waterproof film body 1034, and a protrusion 1031 provided in the middle of the waterproof film body 1034, the protrusion 1031 protrudes toward the first support 101 side and corresponds to the key switch 1051, the protrusion 1031 covers the key switch 1051, and a side of the protrusion 1031 away from the key switch 1051 contacts the key body 1011. When a user presses the key body 1011, the key body is made to move downwards and push the protruding part 1031 to move downwards together, the elastic cantilever 1012 and the protruding part 1031 are elastically deformed, and the protruding part 1031 presses and touches the key switch 1051; then, the user releases his hand, the key body 1011 is driven by the elastic cantilever 1012 to move away from one side of the computer board 105, and the protrusion 1031 automatically resets.

Preferably, a concave portion 1033 recessed toward a side away from the first bracket 101 is provided along a circumferential direction of the convex portion 1031 at a connection portion of the convex portion 1031 and the waterproofing membrane body 1034, the convex portion 1031 is connected to the waterproofing membrane body 1034 through the concave portion 1033, and the shape of the protruding hole 1023 is matched with the concave portion 1033. By providing the recessed portion 1033, the waterproof membrane main body 1034 can be prevented from being pulled in the process of pressing the protruding portion 1031, and the firmness of the waterproof membrane 103 after being fixed is increased; meanwhile, the elasticity of the key structure 100 can be increased, the hand feeling is increased, and the satisfaction of customers can be improved.

In this embodiment, the waterproof membrane 103 is an integral injection molded part made of a flexible material, preferably a silicone material.

Preferably, in this embodiment, a key cap 104 is further installed on a side of the key body 1011 away from the key switch 1051, and the key cap 104 is at least partially embedded in the hollow hole 1018 and abuts against the key body 1011. The key body 1011 is provided with a limiting column 1015, the key cap 104 is provided with a limiting groove, and after the key cap 104 is installed, the limiting groove is sleeved on the limiting column 1015. Preferably, the restraining posts 1015 are provided in two.

Example two

As shown in fig. 1 to 11, in the present embodiment, a household appliance installed with the key structure 100 in the first embodiment is disclosed, the household appliance includes a machine body 300, and a door 400 is disposed on one side of the machine body 300, and in the present embodiment, the door 400 is installed at the front end of the machine body 300 through a hinge.

In this embodiment, the body 300 and/or the door 400 includes a table 200, and the key structure 100 is mounted on the table 200.

In this embodiment, the key structure 100 is disposed inside the table top 200, the key cap 104, the first support 101, the waterproof film 103, the second support 102, and the computer board 105 of the key structure 100 are sequentially disposed from outside to inside, a connecting member is disposed between the second support 102 and the inner wall of the table top 200, and the key structure 100 is mounted on the table top 200 through the connecting member between the second support 102 and the table top 200.

In this embodiment, the length of second support 102 is greater than the length of first support 101, first support 101 sets up in the middle part of second support 102, the left and right sides that second support 102 is close to the terminal surface of first support 101 is provided with the erection column 1024 that extends to mesa 200 inner wall, the coaxial mounting hole that is provided with on the erection column 1024, the connecting piece is kept away from one side of mesa 200 inner wall from erection column 1024 and is passed the mounting hole and link to each other with mesa 200 inner wall, the one end butt that second support 102 was kept away from to erection column 1024 is on mesa 200 inner wall. Preferably, the connecting member may be a bolt and/or a screw, if the connecting member is a bolt, a through hole corresponding to the mounting hole is provided on the side wall of the table top 200, and the bolt sequentially passes through the mounting hole and the through hole to mount the key structure 100 on the side wall of the table top 200; if the connecting piece is a screw, a threaded hole corresponding to the mounting hole is arranged on the side wall of the table board 200, and the end part of the screw is mounted in the threaded hole.

Preferably, in this embodiment, a groove corresponding to an end of the mounting post 1024 is further disposed on an inner wall of the table 200, and an end of the mounting post 1024, which is far away from the second bracket 102, at least partially extends into the groove, so as to improve the positioning effect and the mounting strength.

Preferably, in this embodiment, one side of the first support 101, which is away from the second support 102, abuts against an inner wall of the table top 200, the fourth positioning posts 1013 are disposed at left and right sides of an end surface of the first support 101, the inner wall of the table top 200 is provided with fourth positioning grooves corresponding to the fourth positioning posts 1013 one to one, and when the key structure 100 is installed, the fourth positioning posts 1013 are inserted into the fourth positioning grooves.

As shown in fig. 1 to fig. 3, in the present embodiment, a mounting opening 201 corresponding to the key body 1011 is formed on the side wall of the table top 200, the shape of the mounting opening 201 is matched with the shape of the key cap 104, and the key cap 104 is embedded in the mounting opening 201 from the inner side of the side wall of the table top 200. The key cap 104 is provided with a limiting part which is abutted against the inner wall of the table board 200 to prevent the key cap 104 from falling off the mounting opening 201. After the key cap 104 is installed, the outer side wall of the key cap 104 and the outer side wall of the table top 200 are in the same plane.

In this embodiment, no fixing structure is required to be arranged between the table top 200 and the first support 101, between the waterproof film 103 and the first support 101 and the second support 102, and between the first support 101 and the second support 102, only positioning columns and positioning grooves which are matched with each other need to be arranged, and the key structure 100 is finally assembled by the connecting piece between the mounting column 1024 and the side wall of the table top 200 and between the key structure 100 and the table top 200, so that the structure of the key structure 100 is simplified.

Preferably, in this embodiment, the household appliance may be a washing machine, the key structure 100 is configured as a power key of the washing machine, and the computer board 105 of the key structure 100 is electrically connected to a control unit of the washing machine, and is used for starting and/or shutting down the washing machine.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make modifications or changes to equivalent embodiments using the above-mentioned teachings without departing from the scope of the present invention, and the embodiments in the above embodiments can be further combined or replaced, but any simple modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are also within the scope of the present invention.

Claims (10)

1. The key structure comprises a support, wherein a computer board (105) is installed on one side of the support, and a key cap (104) used for triggering a key switch (1051) on the computer board (105) is arranged on the other side of the support, and is characterized in that the support comprises a first support (101) and a second support (102) which are buckled with each other, and a waterproof membrane (103) is clamped between the first support (101) and the second support (102).

2. The key structure according to claim 1, wherein a limiting groove (1017) matched with the waterproof film (103) in shape is arranged on the end surface of the first support (101) opposite to the second support (102), and the waterproof film (103) is arranged in the limiting groove (1017);

the depth of the limiting groove (1017) is less than or equal to the thickness of the waterproof film (103).

3. The key structure according to claim 2, characterized in that the contact surfaces of the first support (101) and the waterproof membrane (103) and the second support (102) are respectively provided with at least two first positioning columns (1016) and at least two second positioning columns (1032);

the second bracket (102) is provided with a first positioning groove (1021) and a second positioning groove (1022) which are respectively matched with the first positioning column (1016) and the second positioning column (1032) in a one-to-one correspondence manner.

4. The key structure according to any one of claims 1 to 3, wherein a hollow hole (1018) is formed in the middle of the first support (101), and a key body (1011) is arranged in the hollow hole (1018); the key cap (104) is at least partially embedded in the hollow hole (1018) and is abutted against the key body (1011);

the key body (1011) is connected to the inner wall of the hollow hole (1018) through an elastic cantilever (1012).

5. The key structure according to claim 4, characterized in that the bottom of the first support (101) is provided with a drainage groove (1014) communicating the inner side and the outer side of the hollowed-out hole (1018);

the drainage grooves (1014) are correspondingly arranged on two opposite side walls of the hollow hole (1018).

6. The key structure according to any one of claims 1 to 3, characterized in that an end surface of the second bracket (102) away from the first bracket (101) is provided with a mounting plate (1025) perpendicular to the second bracket (102), the mounting plate (1025) is provided with a buckle (1026), and the computer board (105) is clamped between the buckle (1026) and the second bracket (102);

the mounting plate (1025) includes at least two oppositely disposed plates.

7. A key structure according to claim 6, characterised in that the second support (102) is provided with a skirt extending perpendicularly away from the first support (101) along its outer edge;

two oppositely disposed mounting plates (1025) and the shroud surround a mounting slot for receiving a computer board (105).

8. The key structure of claim 7, wherein the connection between the bottom of the mounting groove and the wall of the mounting groove is provided with buffering pads (1027) uniformly arranged along the circumference of the computer board (105).

9. A household appliance comprising a body (300) and a door (400), characterized in that the body (300) and/or the top (200) of the door (400) are provided with a key structure according to any one of claims 1 to 8.

10. The household appliance according to claim 9, wherein the table top (200) is provided with a mounting opening (201), and the key cap (104) is embedded in the mounting opening (201) from the inner side of the table top (200);

the second support (102) is connected with the inner wall of the table top (200) through a connecting piece, and the first support (101) and the waterproof membrane (103) are clamped between the table top (200) and the second support (102).

Images