WO2020182038A1 - Main control panel assembly and clothes washing machine - Google Patents

Abstract

The present invention belongs to the technical field of household electrical appliance manufacturing, and specifically relates to a main control panel assembly and a clothes washing machine. The present invention aims to solve the problem in the prior art of a push-button easily deviating from its preset position, causing a push operation not to be responsive. In the main control panel assembly and clothes washing machine of the present invention, a support member used for supporting the push-button is arranged between the push-button and a mounting hole in order to prevent the push-button from shifting downward under the influence of gravitational force on it; thus there is always a preset mounting clearance between the lower edge of the support member and the lower hole wall of the mounting hole, ensuring that the push-button can be maintained at its preset mounting position, and thus improve its sensitivity to button push operations.

Description

Main control board assembly and washing machine

This application seeks to enjoy the priority of the invention patent application with the application number 201910181535.6 filed with the China Intellectual Property Office on March 11, 2019.

Technical field

The invention belongs to the technical field of household appliance manufacturing, and specifically relates to a main control board assembly and a washing machine.

Background technique

The washing machine usually includes a housing for accommodating the washing tub, and a control system is usually provided on the upper part of the housing. The control system is used to control the working state of the washing machine, such as opening, closing, and washing time.

The control system includes a main control board. The main control board is usually set on the main control board at the upper end of the front side of the washing machine. The main control board is provided with mounting holes. The mounting holes are equipped with buttons and other buttons for operation, which can be controlled by the user. The working status of the washing machine. Wherein, there is a preset installation gap between the key and the wall of the installation hole to facilitate the pressing operation of the key.

However, in the process of using the washing machine, it is found that the key is easily deviated from its preset position, which causes the pressing operation to be insensitive.

Summary of the invention

In order to solve the above-mentioned problems in the prior art, the present invention provides a main control board assembly and a washing machine.

One aspect of the present invention provides a main control board assembly, including: a main control board, the main control board is provided with a mounting hole facing the front side of the user, and a button that can slide back and forth is provided in the mounting hole; the button setting There is a support member extending toward the wall of the mounting hole, the support member abuts against the wall of the mounting hole; or, the mounting hole is provided with a support member extending toward the button, the support member and The lower edge of the button abuts; so that a preset installation gap is formed between the lower edge of the button and the lower wall of the installation hole.

Another aspect of the present invention provides a washing machine, including a housing, and the front end surface of the housing is provided with the main control board assembly as described in any of the foregoing.

Those skilled in the art can understand that, in the main control board assembly and washing machine of the present invention, a support for supporting the button is arranged between the button and the mounting hole to prevent the button from deviating downward under the action of its own gravity, so that There is always a preset installation gap between the lower edge of the support and the lower hole wall of the installation hole, which ensures that the key can be maintained at its preset installation position, thereby improving the sensitivity to key pressing operations.

Description of the drawings

Hereinafter, preferred embodiments of the washing machine of the present invention will be described with reference to the drawings. The attached picture is:

Figure 1 is a schematic structural diagram of a washing machine provided by an embodiment of the present invention;

2 is a structural schematic diagram 1 of a main control board assembly provided by an embodiment of the present invention;

Fig. 3 is a partial enlarged schematic diagram of part B in Fig. 2;

4 is a second structural diagram of the main control board assembly provided by the embodiment of the present invention;

Figure 5 is a partial enlarged schematic view of part C in Figure 4;

Figure 6 is a schematic cross-sectional view of Figure 5 at D-D;

Fig. 7 is a partial enlarged schematic diagram of part E in Fig. 6.

Reference signs: 1-washing machine; 11-housing; 12-main control board assembly; 121-main control board; 122-mounting hole; 122a-lower hole wall; 122b-side hole wall; 123-button; 123a-lower edge ; 123b-side edge; 124-support; 124a-abutment surface.

detailed description

First of all, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention. Those skilled in the art can adjust it as needed to adapt to specific applications.

Secondly, it should be noted that in the description of the present invention, the terms "inner", "outer" and other terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for ease of description. It does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

In addition, it should be noted that, in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be interpreted broadly, for example, it can be a fixed connection or a detachable connection. , Or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those skilled in the art, the specific meaning of the above-mentioned terms in the present invention can be understood according to specific circumstances.

1 to FIG. 7, this embodiment provides a washing machine 1, including a housing 11, and a main control board assembly 12 is provided on the front end of the housing 11.

The structure of the washing machine 1 provided in this embodiment will be described below with an example. Among them, the direction indicated by arrow A in the figure is upward; the direction indicated by arrow R is right; and the direction indicated by arrow F is forward.

Among them, it can be understood that: for a washing machine, the bottom end (or lower end) refers to the end of the washing machine that is working normally facing the ground, and the end opposite to the bottom end is the top (or upper end) of the washing machine; the front side usually refers to The side of the washing machine facing the user, and the side opposite to the front side is the rear side of the washing machine; one of the remaining two sides is the left side, and the other is the right side.

As shown in Figure 1, the washing machine 1 provided in this embodiment includes a housing 11. The housing 11 includes a front panel, a rear panel, and two side panels on both sides; the front panel can be integrated with the two side panels, and the rear The panel and the two side panels can be detachably connected to facilitate the assembly of the washing machine 1 and subsequent maintenance of the washing machine 1; or, the rear panel and the two side panels are integrated, and the front panel and the two side panels are detachably connected to facilitate the washing machine Assembly of 1 and subsequent maintenance of washing machine 1.

The space enclosed by the front panel, the rear panel and the two side panels is provided with a washing tub and a driving device. The driving device is connected with the washing tub to drive the washing tub to rotate through the driving device. Wherein, the washing tub has an opening for users to take and put clothes, and the opening can be located at the front or top of the washing tub to facilitate users to take and put clothes; the driving device is generally a motor, but this embodiment is not limited to this.

During the working process of the washing machine 1, the motor drives the washing tub to rotate and generates huge centrifugal force, so that the clothes in the washing tub are continuously lifted and dropped under the action of centrifugal force, that is, the clothes in the washing tub are repeated under the action of centrifugal force. Exercise, at the same time, combined with the combined action of water and detergent, the clothes are effectively washed.

The top of the housing 11 is provided with a top plate, which can be covered on the top of the housing 11 to seal the housing 11; in addition, the top plate can also be used as a support table for carrying daily necessities, that is, users can also place daily necessities on the top plate , To save and improve space utilization. In some examples, the top plate is a plate body made of materials such as plastic or metal with a certain load-bearing capacity, and the shape of the plate body can be adapted to the opening at the top of the housing 11. In other examples, the top plate may include a frame made of plastic or metal, and a glass plate made of tempered glass is arranged in the middle of the frame. The glass plate can be sealed and matched with the frame to ensure the sealing effect of the top plate; The glass plate can also have good transparency, so that the user can observe the working condition in the washing tub through the glass plate. The top plate can be detachably connected to the housing 11 through a connection method such as a snap connection or a screw connection, so as to facilitate the assembly of the washing machine 1 and subsequent maintenance of the washing machine 1.

The front panel of the housing 11 forms a front face, and the top of the front face can be provided with a main control board assembly 12, which has operating elements or interactive interfaces for controlling the operation of the washing machine, so that the user can control the operation or working state of the washing machine 1. Exemplarily, the operating elements may include at least one of the following: knobs, buttons, and touch pads; the interactive interface may include a touch screen, which allows the user to control the operation of the washing machine 1 through the touch screen, such as adjusting the working mode and working time And so on, can also show the user the current working mode, remaining time, etc. The main control board assembly 12 is usually detachably connected to the housing 11 through a connection method such as a snap connection, so as to facilitate subsequent maintenance or replacement of the main control board 12. Among them, the main control board assembly 12 is located on the front side of the top board, and can be specifically arranged on the top of the front side of the top board. The upper surface of the main control board assembly 12 is usually flush with the upper surface of the top board to improve the integrity and aesthetics of the washing machine 1. .

The structure of the main control board assembly 12 will be described in detail below.

As shown in FIGS. 2 and 3, the main control board assembly 12 includes a main control board 121, the main control board 121 is provided with a mounting hole 122 facing the front side of the user, and a button 123 that can slide back and forth is provided in the mounting hole 122.

Among them, the button 123 may be rectangular or circular. The button 123 has a front face facing the user, a rear face opposite to the front face, and an edge connected between the front face and the rear face; the edges include: an upper edge on the upper side, a lower edge 123a on the lower side, and a connection On the side edges 123b of the upper and lower edges 123a.

Correspondingly, the shape of the mounting hole 122 can be adapted to the shape of the button 123. The mounting hole 122 has an upper hole wall on the upper side, a lower hole wall 122a on the lower side, and a side hole wall 122b connected between the upper hole wall and the lower hole wall 122a, the upper hole wall, the lower hole wall 122a and the side The hole wall 122b encloses a receiving space capable of receiving the button 123.

The main control board 121 is usually provided with a guide hole for guiding the key 123 to slide back and forth. The guide hole may be provided on the rear side of the mounting hole 122, for example, the guide hole may be provided on the rear wall of the mounting hole 122. Correspondingly, the button 123 is provided with a guide post extending backward, and the guide post can slide in the guide hole along the center line of the guide hole.

As shown in Figures 2 to 7, in this embodiment, one of the wall of the mounting hole 122 and the button 123 is provided with a support 124 extending toward the other, and the support 124 extends to abut the other so that A predetermined mounting gap T is formed between the lower edge 123a of the button 123 and the lower hole wall 122a of the mounting hole 122.

In one of the alternative implementations, the button 123 is provided with a support 124 extending toward the lower hole wall 122a of the mounting hole 122, and the lower end of the support 124 abuts against the lower hole wall 122a of the mounting hole 122, so that the button 123 A predetermined installation gap T is formed between the lower edge 123a and the lower hole wall 122a of the installation hole 122. That is, the button 123 is provided with a support 124 that extends downward and extends to abut against the lower hole wall 122a of the mounting hole 122, so that a predetermined gap is formed between the lower edge 123a of the button 123 and the lower hole wall 122a of the mounting hole 122. Set the installation gap T.

The support 124 can be arranged on the lower edge 123a or the side edge 123b of the button 123, so that a preset installation gap T is formed between the lower edge 123a of the button 123 and the lower hole wall 122a of the mounting hole 122, and the support 124 is also supported It can also be hidden in the installation gap T between the button 123 and the installation hole 122.

Taking the support 124 provided on the lower edge 123a of the button 123 as an example: the support 124 can extend from the lower edge 123a of the button 123 to the lower hole wall 122a of the mounting hole 122, and extend to abut against the hole wall of the mounting hole 122, A preset installation gap T is formed between the lower edge 123a of the button 123 and the lower hole wall 122a of the installation hole 122. That is, the support 124 can extend downward from the lower edge 123a of the button 123, and extend to abut against the hole wall of the mounting hole 122, so that the lower edge 123a of the button 123 and the lower hole wall 122a of the mounting hole 122 are formed between The preset installation clearance T. Wherein, the support 124 may extend downward along a straight line, that is, the support 124 extends in a straight line; or, the support 124 may also extend downward along a curve, that is, the support 124 extends downward in a curved or curved shape. .

Exemplarily, the supporting member 124 may have a connecting portion and an abutting portion; a linear or bent connecting section may be connected between the connecting portion and the abutting portion. The connecting portion of the support 124 can be connected to the button 123 by bonding, screwing, or the like. Alternatively, the connecting portion of the support 124 may be integrally formed on the lower edge 123a of the button 123 to simplify assembly. The abutment portion of the support 124 abuts against the lower hole wall 122a of the mounting hole 122, so that a preset mounting gap T is formed between the lower edge 123a of the button 123 and the lower hole wall 122a of the mounting hole 122; The lower hole wall 122a of the hole 122 may be provided with a positioning groove, and a part of the support 124 is located in the positioning groove, so that a preset installation gap T is formed between the lower edge 123a of the button 123 and the lower hole wall 122a of the installation hole 122, It is also possible to realize the positioning of the button 123 and the mounting hole 122 in the left-right direction; at this time, the groove wall of the positioning groove is a part of the lower hole wall 122a of the mounting hole 122.

Taking the supporting member 124 disposed on the side edge 123b of the button 123 as an example, in some examples, the supporting member 124 can extend from the side edge 123b of the button 123 to the lower hole wall 122a of the mounting hole 122, and extends to the side of the mounting hole 122. The hole walls abut against each other, so that a preset installation gap T is formed between the lower edge 123a of the button 123 and the lower hole wall 122a of the mounting hole 122. That is, the support 124 can extend downward from the side edge 123b of the button 123, and extend to abut against the hole wall of the mounting hole 122, so that the lower edge 123a of the button 123 and the lower hole wall 122a of the mounting hole 122 are formed between The preset installation clearance T. Wherein, the support 124 may extend downward along a straight line, that is, the support 124 extends in a straight line; or, the support 124 may also extend downward along a curve, that is, the support 124 extends downward in a curved or curved shape. . For example, the side edge 123b of the button 123 can be directly extended downward to form the support 124.

In other examples, the support 124 is provided on the side edges 123b on the left and right sides of the button 123; the corresponding position in the mounting hole 122 may be provided with a positioning groove, and a part of the support 124 is located in the positioning groove, so that the button 123 A preset installation gap T is formed between the edge 123a and the lower hole wall 122a of the installation hole 122. At this time, the positioning groove may be connected to the mounting hole 122, and the groove wall of the positioning groove is a part of the side hole wall 122b of the mounting hole 122.

Of course, the position of the support 124 on the button 123 is not limited to this, and this embodiment is just an example here. For example, the support 124 may also be provided on the front or rear surface of the button 123.

In another optional implementation manner, the wall of the mounting hole 122 is provided with a support 124 extending toward the button 123, and the upper end of the support 124 abuts against the lower edge 123a of the button 123, so that the lower edge 123a of the button 123 A preset installation gap T is formed between the lower hole wall 122a and the installation hole 122. That is, the button 123 is provided with a support 124 that extends upward and extends to abut against the lower edge 123a of the button 123, so that a preset installation is formed between the lower edge 123a of the button 123 and the lower hole wall 122a of the mounting hole 122 Gap T.

The support 124 can be arranged on the lower hole wall 122a or the side hole wall 122b of the mounting hole 122, so that a preset mounting gap T is formed between the lower edge 123a of the button 123 and the lower hole wall 122a of the mounting hole 122, and also The support 124 can also be hidden in the installation gap T between the button 123 and the installation hole 122.

Taking the support 124 disposed on the lower hole wall 122a of the mounting hole 122 as an example, the support 124 can extend from the lower hole wall 122a of the mounting hole 122 to the lower edge 123a of the button 123 and extend to abut against the lower edge 123a of the button 123 , So that a preset installation gap T is formed between the lower edge 123a of the button 123 and the lower hole wall 122a of the installation hole 122. That is, the support 124 can extend upward from the lower hole wall 122a of the mounting hole 122 and extend to abut against the lower edge 123a of the button 123, so that the lower edge 123a of the button 123 and the lower hole wall 122a of the mounting hole 122 are between A preset installation gap T is formed. Wherein, the supporting member 124 may extend upward in a straight line, that is, the supporting member 124 may extend in a straight line; or, the supporting member 124 may also extend upward in a curve, that is, the supporting member 124 may extend downward in a bent or curved shape.

Exemplarily, the supporting member 124 may have a connecting portion and an abutting portion; a linear or bent connecting section may be connected between the connecting portion and the abutting portion. The connecting portion of the support 124 can be connected to the wall of the mounting hole 122 by bonding, screwing, or the like. Alternatively, the connecting portion of the support 124 may be integrally formed on the lower hole wall 122a of the mounting hole 122 to simplify assembly. The abutment portion of the support 124 abuts against the lower edge 123a of the button 123, so that a preset installation gap T is formed between the lower edge 123a of the button 123 and the lower hole wall 122a of the mounting hole 122; The lower edge 123a may be provided with a positioning groove, and a part of the support 124 is located in the positioning groove, so that a preset installation gap T is formed between the lower edge 123a of the button 123 and the lower hole wall 122a of the mounting hole 122, which can also realize the button 123 and the mounting hole 122 are positioned along the left and right directions; at this time, the groove wall of the positioning groove is a part of the lower edge 123a of the button 123.

Taking the supporting member 124 disposed on the side hole wall 122b of the mounting hole 122 as an example, in some examples, the supporting member 124 may extend from the side edge 123b of the button 123 to the side hole wall 122b of the mounting hole 122 and extend to the side wall 122b of the mounting hole 122. The lower edge 123a of the button abuts against each other, so that a predetermined installation gap T is formed between the lower edge 123a of the button 123 and the lower hole wall 122a of the mounting hole 122. Wherein, the support 124 may also extend along a curve to the lower edge 123a of the button 123, that is, the support 124 extends toward the lower edge 123a of the button 123 in a bent or curved shape. In other examples, the support 124 is provided on the side hole walls 122b on the left and right sides of the mounting hole 122; the corresponding position of the button 123 may be provided with a positioning groove, and a part of the support 124 may be located in the positioning groove, so that the button 123 A predetermined installation gap T is formed between the lower edge 123a and the lower hole wall 122a of the installation hole 122. At this time, the groove wall of the positioning groove is a part of the side edge 123b of the button 123.

Of course, the position of the support 124 on the button 123 is not limited to this, and this embodiment is just an example here.

In the washing machine 1 provided in this embodiment, a support 124 extending toward the wall of the mounting hole 122 is provided on the button 123, or a support 124 extending toward the button 123 is provided on the wall of the mounting hole 122, so that the support 124 is supported at Between the button 123 and the hole wall of the mounting hole 122, the button 123 is prevented from deviating downward under its own gravity, so that there is always a preset gap between the lower edge 123a of the support 124 and the lower hole wall 122a of the mounting hole 122 The installation gap T enables the button 123 to be maintained at its preset installation position, thereby improving the sensitivity to the pressing operation of the button 123.

Optionally, the abutment surface 124a between the abutment portion of the support 124 and the lower hole wall 122a of the mounting hole 122 or the lower edge 123a of the button 123 is curved, so as to reduce the support 124 and the lower hole wall 122a of the mounting hole 122 Or the contact area with the lower edge 123a of the button 123 improves the convenience of pressing the button 123.

That is, when the abutting portion of the support 124 abuts against the lower hole wall 122a of the mounting hole 122, the portion where the abutting portion contacts the lower hole wall 122a of the mounting hole 122 forms an abutting surface 124a, and the abutting surface 124a may be It is a curved surface, such as a wavy curved surface, to reduce the contact area between the support 124 and the lower hole wall 122a of the mounting hole 122. Optionally, the curved surface is a circular arc surface to further reduce the contact area between the support 124 and the lower hole wall 122 a of the mounting hole 122.

When the abutting portion of the supporting member 124 abuts against the lower edge 123a of the button 123, the portion where the abutting portion contacts the lower edge 123a of the button 123 forms an abutting surface 124a, and the abutting surface 124a may be curved, such as a wave shape Curved surface etc. to reduce the contact area between the support 124 and the lower edge 123a of the button 123. Optionally, the curved surface is an arc surface to further the contact area between the support 124 and the lower edge 123a of the button 123.

Of course, the structure of the abutting portion is not limited to this. For example, the abutting portion and the lower hole wall 122a of the mounting hole 122 or the abutting surface 124a of the lower edge 123a of the button 123 are flat surfaces, and the two opposite sides of the flat surface extend outwardly with curved surfaces.

Optionally, the support 124 includes a columnar part, and the axial direction of the columnar part is parallel to the pressing direction of the button 123. That is, the axial direction of the columnar portion of the support 124 extends in the front-rear direction to reliably support the key 123 and improve the positioning reliability of the key 123, thereby reliably making the lower edge 123a of the support 124 and the bottom of the mounting hole 122 There is always a preset installation gap T between the hole walls 122a. The columnar part may be a semi-cylindrical. In this way, the abutting part of the columnar part has a smooth contact surface, so that the contact area between the columnar part and the wall of the mounting hole 122 or the edge of the button 123 can be reduced.

Among them, the columnar part includes a front end surface facing the user, a rear end surface opposite to the front end surface, and a side surface between the front end surface and the rear end surface. Or the contact area of the edge of the button 123 can also reduce the jam phenomenon during the pressing operation of the button 123.

Of course, the structure of the supporting member 124 is not limited to this, and the present embodiment is only illustrated here. For example, the support 124 may also have a cone shape or a hemispherical shape. Wherein, when the support 124 is tapered, the large end of the tapered support 124 may be the connecting portion, and the small end may be the abutting portion; when the support 124 is hemispherical, the spherical surface of the hemispherical support 124 may be used On the abutting surface 124a that abuts against the lower edge 123a of the mounting hole 122 or the lower edge 123a of the button 123.

Optionally, the mounting hole 122 has a centerline Z, and the support 124 is located below the centerline Z.

In some examples, at least part of the support 124 is disposed close to the center line Z on the orthographic projection Z'of the lower wall 122a of the mounting hole 122, that is, at least part of the support 124 is disposed close to the middle of the lower wall 122a of the mounting hole 122, so that There can be a preset installation gap T between the left and right sides of the button 123 and the lower hole wall 122a of the installation hole 122. Exemplarily, at least part of the support 124 may be disposed in the middle of the lower hole wall 122 a of the mounting hole 122. When there is one supporting member 124, the supporting member 124 can be arranged in the middle of the lower hole wall 122a of the mounting hole 122. When there are multiple supporting members 124, at least one of the supporting members 124 is disposed in the middle of the lower hole wall 122a of the mounting hole 122.

In some examples, there are multiple support members 124, at least two support members 124 are symmetrically arranged on both sides of the center line Z, that is, at least two support members 124 are symmetrically distributed on the center line at the bottom of the mounting hole 122. The two sides of the orthographic projection Z′ of 122a are such that there is a preset installation gap T between the left and right sides of the button 123 and the lower hole wall 122a of the installation hole 122.

Of course, the distribution mode of the support 124 is not limited to this. For example, along the pressing direction of the button 123, that is, the front and rear direction of the washing machine 1, a plurality of support members 124 may also be provided, and the plurality of support members 124 are spaced apart to improve the reliability of supporting the button 123.

Optionally, the mounting hole 122 has a front end facing the user and a rear end opposite to the front end, and the support 124 is disposed close to the rear end of the mounting hole 122 so that the support 124 is always located at the rear side of the front end of the button 123.

Exemplarily, the button 123 has a released first preset position and a pressed second preset position, the second preset position is located behind the first preset position; both the button 123 and the support 124 have a front surface; When the button 123 is located at the second preset position, the front end surface of the support 124 is flush with the front end surface of the button 123, or the front end surface of the support 124 is located behind the front end of the button 123; thus, the main control board assembly is improved 12 visual effects. Wherein, the supporting member 124 can extend backward to connect with the rear wall of the mounting hole 122 to improve its supporting reliability.

Optionally, the main control board 121 is provided with a plurality of mounting holes 122 for mounting the buttons 123, and each mounting hole 122 is provided with a support 124, so that the lower edge 123a of each button 123 and the corresponding mounting hole 122 Corresponding installation gaps T are formed between the lower hole walls 122a, so as to improve the pressing sensitivity of the keys 123.

In addition, the parts that are not described in this embodiment of the washing machine 1 may be conventional settings in the field, and this embodiment will not be repeated here.

This embodiment also provides a main control board assembly 12. The structure, function and implementation process of the main control board assembly 12 may be the same as or similar to the main control board assembly 12 in the foregoing embodiment, and will not be repeated here.

It should be noted that the main control board assembly 12 of this embodiment is not only applicable to the washing machine 1, but also applicable to other terminal devices provided with the main control board assembly 12.

So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, those skilled in the art will readily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (15)

1. A main control board assembly includes: a main control board, the main control board is provided with a mounting hole facing the front side of the user, and a button that can slide back and forth is provided in the mounting hole; and is characterized in that,

   The button is provided with a support member extending toward the wall of the mounting hole, and the support member abuts against the wall of the mounting hole; or, the mounting hole is provided with a support member extending toward the button, so The supporting member abuts against the lower edge of the button;

   A preset installation gap is formed between the lower edge of the button and the lower hole wall of the installation hole.
2. The main control board assembly according to claim 1, wherein the supporting member has a connecting portion and an abutting portion;

   The connecting portion is integrally formed on the lower edge of the button, and the abutting portion abuts against the lower wall of the mounting hole; or,

   The connecting portion is integrally formed on the lower hole wall of the mounting hole, and the abutting portion abuts against the lower edge of the button.
3. The main control board assembly according to claim 2, wherein the abutting surface of the abutting portion and the lower hole wall of the mounting hole or the lower edge of the button is a curved surface.
4. 4. The main control board assembly of claim 3, wherein the curved surface is a circular arc surface.
5. The main control board assembly according to claim 1, wherein the supporting member comprises a columnar part, and the axial direction of the columnar part is parallel to the pressing direction of the button.
6. The main control board assembly according to claim 5, wherein the columnar portion includes a front end surface facing the user, a rear end surface opposite to the front end surface, and a side surface between the front end surface and the rear end surface. The connection with the side surface is smoothly transitioned.
7. The main control board assembly according to claim 1, wherein the support member has a cone shape or a hemispherical shape.
8. The main control board assembly of claim 1, wherein the mounting hole has a centerline, and the support member is located below the centerline.
9. 8. The main control board assembly according to claim 8, wherein at least a part of the support member is arranged close to the orthographic projection of the center line on the wall of the mounting hole.
10. 8. The main control board assembly according to claim 8, wherein there are a plurality of the support members, and at least two of the support members are symmetrically arranged on both sides of the center line.
11. The main control board assembly according to claim 1, wherein the mounting hole has a front end facing the user and a rear end opposite to the front end, and the support member is disposed close to the rear end of the mounting hole.
12. The main control board assembly according to claim 11, wherein the button has a first preset position that is released and a second preset position that is pressed, and the second preset position is located at the first preset position. The rear side of the preset position; both the button and the support have a front end;

    When the button is located at the second preset position, the front end surface of the support member is flush with the front end surface of the button, or the front end surface of the support member is located behind the front end surface of the button.
13. The main control board assembly according to claim 1, wherein the main control board is provided with a plurality of the mounting holes, and each of the mounting holes is provided with the support member.
14. The main control board assembly according to claim 1, wherein the support members are respectively provided on two opposite sides of the button, a positioning groove is provided at a corresponding position of the mounting hole, and a part of the support member is located at the corresponding position of the mounting hole. In the positioning groove; or, the hole walls on opposite sides of the mounting hole are respectively provided with the support member, the corresponding position on the button is provided with a positioning groove, and a part of the support member is located in the positioning groove.
15. A washing machine, characterized by comprising a housing, the front end of the housing is provided with the main control board assembly according to any one of claims 1-14.

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