CN207159595U - Button and washing machine - Google Patents

Abstract

The utility model relates to a button, which comprises a main control board, a working key and a PCB board from top to bottom, the main control board is provided with a first through hole, and the pressing part of the working key protrudes from the first A through hole, the side wall of the main control board facing the guide part of the working key is provided with a guide post, the guide part is provided with a first guide hole, and the guide post extends into the first guide hole. The button provided by the utility model, because the control plate corresponding to the work key provided on it is provided with a guide post, the work key is provided with a first guide hole that can allow the guide post to pass through, so that the guide post can be matched with the guide hole After the working key is pressed, the working key moves downward under the action of the guide column, thereby triggering the PCB button on the PCB board. It can effectively prevent the problem of virtual pressing or empty pressing when the key is used.

Description

Button and washing machine

technical field

The utility model relates to the technical field of mechanical keys, in particular to a key and a washing machine including the key.

Background technique

Although the currently known mechanical keys have advantages such as simple structure compared to electronic keys, they all have some disadvantages. For example, the resistance of the key board is different when the key is pressed or the wrong key is pressed, and the problem of virtual or empty pressing will occur , resulting in the button not being pressed down. It directly leads to poor user experience for users.

Therefore, how to propose a button that can solve the problem of virtual pressing or empty pressing of the button in the prior art is a technical problem to be solved by those skilled in the art.

Utility model content

The purpose of the utility model is to provide a button, which can solve the problem of false pressing or empty pressing of the button in the prior art.

The purpose of this utility model is also to propose a washing machine, which can solve the problem of virtual pressing or empty pressing of the buttons on the washing machine in the prior art.

For this purpose, the utility model adopts the following technical solutions:

A button is provided, which includes a main control board, a working key and a PCB board from top to bottom, the main control board is provided with a first through hole, and the pressing part of the working key extends out of the first through hole, A guide post is provided on the side wall of the main control board facing the guide part of the working key, the guide part is provided with a first guide hole, and the guide post extends into the first guide hole.

Preferably, the guide post is located on both sides of the working key.

Arranging the guide pillars on both sides of the working key can effectively prevent the problem of empty or virtual pressing on the side where the guide pillars are not provided when both sides of the working key are pressed.

Preferably, the number of the guide posts is 2n, and n guide posts are arranged on both sides of the working key along its length direction, wherein n is a positive integer.

The number of guide pillars is set to be an integer multiple of two, so that the guide pillars can be located on both sides of the working key, especially when the number of guide pillars is four or six, the guide pillars can be located around the working key, Furthermore, it is possible to realize the operation of the working key when the side of the working key in any direction is pressed.

Preferably, the working key includes the pressing part, the guiding part and the contact part from top to bottom, and the contact part is used to trigger the PCB button arranged on the PCB board, and the cross-sectional length of the pressing part is less than the The cross-sectional length of the guide part, the cross-sectional length of the contact part is smaller than the cross-sectional length of the guide part.

Setting the cross-sectional length of the guide part to be greater than the cross-sectional length of the pressing part can make the guide post and the guide hole fit well, and at the same time prevent the working key from extending out of the first through hole as a whole. This structure can effectively ensure that the working key is built in in the cavity formed by the main control board.

Preferably, the main control board is also provided with an elastic pressing plate, one end of the elastic pressing plate is arranged on the side of the main control board close to the PCB board, and the elastic pressing plate and the guide post are located on the main control board. same side of the control panel.

An elastic pressing plate is arranged on the main control board, which can push the working key to the opposite direction of the pressed direction due to the elastic effect after the elastic pressing plate is pressed, so that the working key can return to its original position without a spring.

Preferably, the elastic pressing plate includes a connecting part connected with the main control board and a follower part that moves downward with the working key, both ends of the connecting part are connected with the main control board, and the elastic pressing plate The cross-sectional shape is "L" shape, and the follower part is arranged directly under the contact part.

The other end of the follower part is not connected to other parts, so that it is suspended in the air, so that after the follower part is pressed, because one end is suspended in the air, the restoring force increases, and the working key is further guaranteed to return to the initial position.

Preferably, the elastic pressing plate is integrated with the main control board.

The elastic pressing plate and the main control board are arranged as an integrated structure, so that when the elastic pressing part is pressed for a long time, the connection between the elastic pressing part and the main control board will not be separated, further ensuring the service life of the button.

Preferably, the elastic pressing plate is made of elastic material.

Preferably, the part of the connecting part located directly below the contact part is provided with a groove, the follow-up part is arranged in the groove, the follow-up part includes two contact arms and a working part, and the working part The two sides of the part are connected with the side walls of the groove through the contact arms.

The follower part includes two contact arms and a working part connected to the side wall of the groove through the contact arms. Since the working part is connected through the two contact arms, the working part can be restored to its original state through the contact arms after being pressed down. At the same time, due to the existence of the contact arms, Only then can it be ensured that when the top of the working part is under pressure, the working part sinks and triggers the PCB button.

The utility model also provides a washing machine, which is characterized in that it includes the above-mentioned button.

The button provided by the utility model is provided with a guide post on the main control board corresponding to the work key provided on it, and the work key is provided with a first guide hole that allows the guide post to pass through, so that the guide post can be connected with the guide hole After the working key is pressed, the working key moves downward under the action of the guide post, thereby triggering the PCB key on the PCB board. It can effectively prevent the problem of virtual pressing or empty pressing when the key is used.

The washing machine provided by the utility model is provided with a guide post on the control panel corresponding to the work key provided on it, and the work key is provided with a first guide hole that allows the guide post to pass through, so that the guide post can be matched with the guide hole After the working key is pressed, the working key moves downward under the action of the guide column, thereby triggering the PCB button on the PCB board.

Description of drawings

Fig. 1 is the structural representation of the button that the utility model provides;

Fig. 2 is a bottom view for setting PCB keys in Fig. 1;

FIG. 3 is a cross-sectional view of the key provided in FIG. 1 .

In the picture:

1. Main control board; 11. First side wall; 12. Vertical side wall; 2. Guide post; 3. Working key; 31. Guide part; 32. Press part; 33. Contact part; 4. PCB button; 5. Elastic pressing plate; 51. Connecting part; 511. Groove; 52. Follower part; 521. Contact arm; 522. Working part.

Detailed ways

In order to make those skilled in the art better understand the technical solution of the utility model, the technical solution of the utility model will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

As shown in FIG. 1 , a key is provided in this embodiment, which can effectively prevent the problem of empty pressing or virtual pressing after the user presses it. The button includes a main control board 1, a working key 3 and a PCB board from top to bottom, wherein the main control board 1 is provided with a first through hole, and the pressing part 32 of the working key 3 protrudes from the first through hole. A through hole, the first side wall 11 of the main control board 1 is provided with a guide post 2 on the side facing the guide part 31, the guide part 31 of the working key 3 is provided with a first guide hole, the guide post 2 into the first guide hole. Because guide post 2 is arranged on the control panel corresponding to the work key provided on it, work key 3 is provided with the first guide hole that can allow this guide post 2 to pass through, and guide post 2 can be made to cooperate with the first guide hole. After the working key 3 is pressed, the working key 3 moves downward under the action of the guide column 2, thereby triggering the PCB button 4 on the PCB board. It can effectively prevent the problem of virtual pressing or empty pressing when the key is used.

In this embodiment, the guide post 2 is located on both sides of the working key 3 . Wherein, the number of guide pillars 2 is 2n, and the working key 3 is provided with n guide pillars on both sides along its length direction, wherein n is a positive integer. Preferably, the number of guide pillars 2 in this embodiment is four. Setting the number of guide pillars 2 to four can effectively make either side of the working key move with the downward pressure when pressed, preventing virtual pressing or empty pressing.

The above-mentioned working key 3 includes the pressing part 32, the guiding part 31 and the contact part 33 from top to bottom, and the contact part 33 is used to trigger the PCB button 4 arranged on the PCB board. The cross section of the pressing part 32 is The length is less than the cross-sectional length of the guide portion 31 , and the cross-sectional length of the contact portion 33 is less than the cross-sectional length of the guide portion 31 . As shown in Figure 3, the cross-sectional length of the pressing part 32 is smaller than the cross-sectional length of the guide part 31, and the cross-sectional length of the contact part 33 is smaller than the cross-sectional length of the guide part 31, so that the working key can move back and forth along the guide post 2 without hindrance .

In order to enable the working key 3 to return to the initial position after being pressed down, an elastic pressing plate 5 is also provided on the main control board 1 in this embodiment, and one end of the elastic pressing plate 5 is arranged on the main control board 1 close to the PCB board. On one side, the elastic pressing plate 5 and the guide post 2 are located on the same side of the main control board 1 . Specifically, the elastic pressing plate 5 includes a connection portion 51 connected to the main control board 1 and a follower portion 52 that moves downward with the working key 3, both ends of the connection portion 51 are connected to the main control board 1 One end of the connecting part 51 is connected to the first side wall 11 of the main control board 1 at the same time as the guide post 2, and the other end is connected to the vertical side wall 12 extending along the axial direction of the guide post on one side of the main control board 1 , that is, in this embodiment, one side of the main control board 1 is provided with a vertical side wall 1, the vertical side wall 1 is arranged along the axial direction of the guide post 2, and the cross-sectional shape of the elastic pressing plate 5 is "L ” shape, the follower portion 52 is disposed directly below the contact portion 33 . The elastic pressing plate 5 is integrated with the main control board 1 , and the elastic pressing plate 5 is made of elastic material.

The elastic pressing plate 5 and the main control board 1 are arranged in an integrated structure, which can ensure that the connection between the elastic pressing part 5 and the main control board 1 will not be detached even when the elastic pressing part 5 is pressed for a long time, further ensuring the safety of the button. service life. At the same time, the elastic pressing plate 5 is made of elastic material, which can effectively ensure the elasticity of the elastic pressing portion 5 .

As shown in Figures 1 and 2, a groove 511 is provided at the part of the connection part directly below the contact part 33, and the follower part 52 is arranged in the groove 511. The follower part 52 includes two contact arms 521 and a working part 522. Both sides of the portion 522 are connected to the sidewalls of the groove 511 through contact arms. The contact arm 521 is an arc structure, and the contact arm 521 is a strip structure, which can ensure that the contact arm bends under pressure, and then can drive the working part 522 to move downward to trigger the PCB button 4 .

This embodiment also provides a washing machine, including the button provided in this embodiment. The washing machine provided by the utility model is provided with a guide post on the control panel corresponding to the work key provided on it, and the work key is provided with a first guide hole that allows the guide post to pass through, so that the guide post can be matched with the guide hole After the working key is pressed, the working key moves downward under the action of the guide column, thereby triggering the PCB button on the PCB board. Effectively prevent the buttons on the washing machine from being pressed falsely or empty.

Note that the basic principles and main features of the present invention and the advantages of the present invention are shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model, and the claimed scope of the utility model is defined by the appended claims and their equivalents.

Claims (10)

1. a kind of button, it is characterised in that include master control borad (1), job key (3) and pcb board, the master successively from top to bottom First through hole is provided with control plate (1), the first through hole, the master control borad are stretched out in the press section (32) of the job key (3) (1) towards guide pillar (2) is provided with the side wall of the job key (3) guide part (31), the guide part (31) is provided with first Guide hole, the guide pillar (2) are stretched into first guide hole.

2. button according to claim 1, it is characterised in that the guide pillar (2) is located at the both sides of the job key (3).

3. button according to claim 2, it is characterised in that guide pillar (2) quantity is 2n roots, the job key (3) Both sides are each provided with n root guide pillars along its length, and wherein n is positive integer.

4. button according to claim 3, it is characterised in that the job key (3) includes described press successively from top to bottom Splenium (32), the guide part (31) and contact site (33), the contact site (33) are arranged on PCB on pcb board to trigger Button (4), press section (32) cross-section lengths are less than the cross-section lengths of the guide part (31), the contact site (33) Cross-section lengths are less than the cross-section lengths of the guide part (31).

5. button according to claim 4, it is characterised in that be additionally provided with elastic pressing plate on the master control borad (1) (5), described elastic pressing plate (5) one end is arranged on the master control borad (1) close to the side of pcb board, the elastic pressing plate (5) It is located at the same side of the master control borad (1) with the guide pillar (2).

6. button according to claim 5, it is characterised in that the elastic pressing plate (5) includes being connected with master control borad (1) Connecting portion (51) and the servo-actuated portion (52) that is moved down with job key (3).

7. button according to claim 6, it is characterised in that the elastic pressing plate (5) is one with the master control borad (1) Body formula structure.

8. button according to claim 7, it is characterised in that the elastic pressing plate (5) is made up of elastomeric material.

9. button according to claim 8, it is characterised in that the connecting portion is immediately below the contact site (33) Part is opened up fluted (511), and the servo-actuated portion (52) is arranged in the groove (511), and the servo-actuated portion (52) includes two Contact arm (521) and work department (522), the side wall that work department (522) both sides pass through the contact arm and groove (511) Connection.

10. a kind of washing machine, it is characterised in that including the button as described in claim any one of 1-9.