Key structure of air purifier

Abstract

The utility model discloses a button structure of an air purifier, which comprises a PCB (printed circuit board) fixed in an air purifier body and a button assembly opposite to one end face of the PCB, the button assembly comprises a plurality of independent buttons, the top of each button is exposed outside the air purifier body, and the button assembly is fixed on the PCB. An elastic piece is arranged between the keys and the PCB and comprises a plurality of reset columns corresponding to the keys one to one, the back face of each key abuts against the top face of the corresponding reset column, and the back face of each reset column abuts against the PCB. The back faces of the adjacent reset columns are connected through a connecting piece to form an integrated structure. According to the utility model, the integrated elastic piece is arranged between the PCB and the key assembly, so that a plurality of keys are consistent in a limited space of the air purifier, do not deviate after being mounted, do not shake when being pressed, and are good in hand feeling.

Description

Technical Field

[0001] This utility model belongs to the field of air purifier button technology, specifically relating to a button structure for an air purifier. Background Technology

[0002] Currently, air purifiers typically use a single, integrated button design when internal space is ample. This design ensures consistency and a good tactile feel across all buttons. However, as air purifiers become increasingly smaller and more compact, internal space is becoming increasingly limited, making the traditional integrated button design difficult to implement. In space-constrained situations, multiple buttons often need to be installed independently, leading to issues such as button misalignment and wobbling, severely impacting the user experience. There is an urgent need in the market for a solution that can achieve stable button installation while maintaining a good tactile feel within limited space. Utility Model Content

[0003] This utility model provides a button structure for an air purifier to solve the problem in the existing technology of how to ensure that multiple buttons are not misaligned, do not wobble, and have a good feel after installation within the limited space of the air purifier body.

[0004] This utility model provides a button structure for an air purifier, including a PCB board fixed inside the air purifier body and a button assembly opposite one end face of the PCB board. The button assembly includes several independent buttons, the top of each button being exposed outside the air purifier body. An elastic element is provided between the button and the PCB board. The elastic element includes several reset posts corresponding to each button. The back of each button abuts against the top surface of the corresponding reset post, and the back of each reset post abuts against the PCB board. The backs of adjacent reset posts are connected by a connecting piece to form an integral structure.

[0005] Preferably, the reset post is a hollow cylinder, and the connection between the top surface and the peripheral surface of the reset post is rounded.

[0006] Preferably, the reset post is formed by stacking two or more hollow cylinders coaxially along the pressing direction of the button, and the inner diameter of the cylinder near the top surface of the elastic element is smaller than the inner diameter of the cylinder near the back surface of the elastic element, and the connecting surface between two adjacent cylinders is rounded.

[0007] Preferably, the wall thickness of the reset post is 2mm-3mm.

[0008] Preferably, the reset post further includes a base, which abuts against the PCB board, and the thickness of the base is not less than 2mm.

[0009] Preferably, the back of the button has a rib extending along the pressing direction of the button, and the end of the rib is provided with a buckle. The air purifier body is provided with a limiting plate that matches the buckle.

[0010] Preferably, a limiting rib is provided at the top of the bone position.

[0011] Preferably, the elastic element is made of silicone.

[0012] This utility model has the following beneficial effects:

[0013] The button structure of the air purifier provided by this utility model has multiple buttons that are consistent within the limited space of the air purifier. The buttons are not misaligned after installation, do not wobble when pressed, and have a good feel. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort. In addition, in the drawings, the same parts use the same reference numerals, and the drawings are not drawn to scale.

[0015] Figure 1 This is an overall structural diagram of the button structure in a specific embodiment of this utility model;

[0016] Figure 2 This is a structural diagram of the button in a specific embodiment of the present invention;

[0017] Figure 3 This is a structural diagram of the elastic element in a specific embodiment of the present utility model;

[0018] Figure 4 This is a diagram showing the button structure and the assembly structure of the air purifier body in a specific embodiment of this utility model.

[0019] Explanation of icon numbers

[0020] 10-Air purifier body; 11-Limit plate;

[0021] 20-PCB board;

[0022] 30 - Button; 31 - Bone position; 32 - Buckle position; 33 - Limiting rib;

[0023] 40 - Elastic element; 41 - Reset post; 42 - Connecting piece; 411 - Rounded corner; 412 - Base. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments disclosed in this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments disclosed. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Specific Implementation

[0027] When there is sufficient internal space, current air purifiers typically use a design where multiple buttons are integrated into one unit. This design ensures consistency and a good tactile feel for each button. However, when space is limited, multiple buttons often need to be set independently, which can lead to issues such as button misalignment and wobbling, severely impacting the user experience.

[0028] This embodiment provides a button structure for an air purifier, which ensures that multiple buttons are consistent within the limited space of the air purifier, that the buttons are not misaligned after installation, and that they do not wobble when pressed and have a good feel.

[0029] Specifically, such as Figures 1-3 As shown, a button structure for an air purifier includes a PCB board 20 fixed inside the air purifier body 10 and a button assembly 30 opposite to one end face of the PCB board 20. The button assembly 30 includes several independent buttons 30, the top of each button 30 being exposed outside the air purifier body 10. An elastic element 40 is provided between the button 30 and the PCB board 20. The elastic element 40 includes several reset posts 41 corresponding to each button 30. The back of each button 30 abuts against the top surface of the corresponding reset post 41, and the back of each reset post 41 abuts against the PCB board 20. The backs of adjacent reset posts 41 are connected by connecting pieces 42 to form an integrated structure.

[0030] In this embodiment, by providing an integrated elastic element 40 between the PCB board 20 and the button assembly 30, when the user presses the button 30, the button 30 squeezes the elastic element 40, causing the elastic element 40 to deform. When the user releases the button 30, the elastic element 40 causes the button 30 to reset under the action of the rebound force. The integrated elastic element 40 makes it difficult for each independent button 30 to deviate when pressed or reset, and has consistency.

[0031] In a preferred embodiment, the reset post 41 is entirely hollow cylindrical, with a rounded corner 411 at the connection between its top surface and peripheral side surface. Specifically, the hollow cylindrical structure of the reset post 41 provides better compressibility compared to a solid structure, making it easier for the user to operate; simultaneously, the hollow reset post 41 offers better rebound performance, allowing the button 30 to reset quickly and providing a better tactile feel. The rounded corner 411 design at the connection between the top surface and peripheral side surface of the reset post 41 also enhances its compressibility and rebound performance, allowing the reset post 41 to smoothly indent downwards when pressed and smoothly reset upon rebound, resulting in a smoother pressing feel.

[0032] In a preferred embodiment, the reset post 41 is formed by stacking two or more hollow cylinders coaxially along the pressing direction of the button 30, and the inner diameter of the cylinder near the top surface of the elastic member 40 is smaller than the inner diameter of the cylinder near the back surface of the elastic member 40, and the connecting surface between two adjacent cylinders is rounded at corner 411. Specifically, under the same compression distance, the reset post 41 adopts a structure of stacking two or more reset posts 41, which has better compression performance and rebound performance than a single reset post 41 structure; the use of a smaller reset post 41 near the top surface of the elastic member 40 and a larger reset post 41 near the back surface of the elastic member 40 is to increase the overall stability of the reset post 41 and avoid the reset post 41 shaking when the button 30 is pressed.

[0033] In a preferred embodiment, the wall thickness of the reset post 41 is 2mm-3mm. It is easily understood that if the wall thickness of the reset post 41 is too thick, its compression and rebound performance will be reduced; if the wall thickness of the reset post 41 is too thin, its overall stability will be reduced. Therefore, this embodiment uses a reset post 41 with a wall thickness of 2mm-3mm, which has better performance in practical applications.

[0034] In a preferred embodiment, the reset post 41 further includes a base 412, which abuts against the PCB board 20, and the thickness of the base 412 is not less than 2mm. Specifically, during the reset process, the impact force of the button 30's rebound generates noise. This embodiment uses a base 412 with a certain thickness, so that the contact surface between the reset post 41 and the PCB board 20 is a buffer surface with a certain thickness. On the one hand, this can increase the overall stability of the reset post 41, and on the other hand, it can buffer the impact noise when the button 30 rebounds.

[0035] Combination Figure 4In a preferred embodiment, a rib 31 extends along the moving direction of the button 30 on the back side of the button 30, and a latch 32 is provided at the end of the rib 31. The air purifier body 10 is provided with a limiting plate 11 that matches the latch 32. Specifically, when the user presses the button 30, the button 30 moves along the extending direction of the rib 31, and the rib 31 can guide the button 30; when the user releases the button 30, the button 30 returns to the latch 32 and abuts against the limiting plate 11 under the rebound force of the reset post 41, preventing the button 30 from becoming loose. Furthermore, ribs 31 are symmetrically arranged on both sides of each independent button 30, which can also prevent the button 30 from shaking along a direction perpendicular to its pressing and moving direction.

[0036] In a preferred embodiment, a limiting rib 33 is provided at the top of the rib 31. Specifically, the air purifier body 10 is provided with several windows arranged side by side, and the top of each button 30 is exposed outside the air purifier body 10 along the window. The limiting rib 33 is located inside the window and extends along the moving direction of the button 30, so that the user can avoid shaking when pressing the button 30.

[0037] In a preferred embodiment, the elastic element 40 is made of silicone.

[0038] The above are merely specific embodiments of the present invention, enabling those skilled in the art to understand or implement this disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A button structure for an air purifier, comprising a PCB board (20) fixed inside an air purifier body (10), and a button assembly opposite one end face of the PCB board (20), the button assembly comprising a plurality of independent buttons (30), the top of each button (30) being exposed outside the air purifier body (10), characterized in that, An elastic element (40) is provided between the button (30) and the PCB board (20). The elastic element (40) includes a plurality of reset posts (41) corresponding one-to-one with the button (30). The back of each button (30) abuts against the top surface of the corresponding reset post (41), and the back of each reset post (41) abuts against the PCB board (20). The backs of adjacent reset posts (41) are connected by connecting pieces (42) to form an integral structure.

2. The button structure according to claim 1, characterized in that, The reset post (41) is a hollow cylinder, and the connection between the top surface and the peripheral surface of the reset post (41) is rounded (411).

3. The button structure according to claim 2, characterized in that, The reset post (41) is formed by two or more hollow cylinders stacked coaxially along the pressing direction of the button (30), and the inner diameter of the cylinder near the top surface of the elastic element (40) is smaller than the inner diameter of the cylinder near the back surface of the elastic element (40), and the connecting surface between two adjacent cylinders is rounded (411).

4. The button structure according to claim 2 or 3, characterized in that, The wall thickness of the reset post (41) is 2mm-3mm.

5. The button structure according to claim 2 or 3, characterized in that, The reset post (41) also includes a base (412), which abuts against the PCB board (20), and the thickness of the base (412) is not less than 2mm.

6. The button structure according to claim 1, characterized in that, The back of the button (30) has a rib (31) extending along the pressing direction of the button (30), and a buckle (32) is provided at the end of the rib (31). The air purifier body (10) is provided with a limiting plate (11) that matches the buckle (32).

7. The button structure according to claim 6, characterized in that, A limiting rib (33) is provided at the top of the bone position (31).

8. The button structure according to claim 1, characterized in that, The elastic element (40) is made of silicone.

Images