Button assembly and device of electronic instrument

Abstract

The utility model provides a button assembly of an electronic instrument. The button assembly comprises a housing, a button body, a silica gel button and a circuit board. The button body is assembled in the shell, and the silica gel button is assembled between the shell and the circuit board; the lower part of the silica gel button is provided with a circle of elastic wall, and the bottom is provided with a conductive particle layer. When the button body is pressed, the elastic wall deforms downwards, so that the conductive particle layer is in contact with the circuit board, and the circuit is conducted at the moment; when the button body is loosened, the elastic wall rebounds upwards to support the button body, so that the conductive particle layer is separated from the circuit board, and the circuit is disconnected at the moment. The button assembly does not fall off after being matched with the shell through the elastic stop block of the button body, the function of connection and disconnection with the circuit board is achieved through the elastic wall and the conductive particles of the silica gel button, additional welding devices are not needed, the assembly efficiency is high, and the machining cost is low.

Description

Technical Field

[0001] This utility model relates to the field of electricity meters, and in particular to a button assembly and device for an electronic instrument. Background Technology

[0002] During the operation of electronic instrument reading, buttons are typically used to achieve functions such as wake-up, scrolling, and programming. However, most existing buttons use springs and sealing rings as components, combined with mechanical push-button switches to achieve circuit switching functions, which has the following drawbacks:

[0003] 1. In some countries and regions, the environment is humid, the temperature difference between day and night is large, and the salt spray content in the air is high. The metal components in mechanical buttons will age faster, thus affecting their service life.

[0004] 2. Springs and sealing rings, as components, have high material and assembly costs, and low assembly efficiency. Mechanical push-button switches need to be soldered to the circuit board before use, increasing material and processing costs. Summary of the Invention

[0005] The purpose of this invention is to address the problems of low assembly efficiency, high cost, and numerous quality risks associated with existing button assemblies, and to propose a button assembly and device for electronic instruments that is simple to assemble, low in cost, and reliable in quality.

[0006] The technical solution of this utility model is:

[0007] This utility model provides a button assembly for an electronic instrument, including a housing, a button body, a silicone button, and a circuit board; the button body is assembled in the housing, and the silicone button is assembled between the housing and the circuit board;

[0008] The silicone button has a ring of spring wall at the bottom and a conductive particle layer at the bottom.

[0009] When the button body is pressed, the spring wall deforms downward, causing the conductive particle layer to contact the circuit board, at which point the circuit is turned on.

[0010] When the button body is released, the spring wall rebounds upward to support the button body, causing the conductive particle layer to detach from the circuit board, at which point the circuit is broken.

[0011] Furthermore, a retaining ring is provided in the middle of the inner wall of the outer casing;

[0012] The button body is provided with two symmetrical elastic blocks. The distance between the two elastic blocks after compression is less than the diameter of the retaining ring, and the distance after rebound is greater than the diameter of the retaining ring, so that the button body can be assembled from the front of the shell without falling off.

[0013] Furthermore, the button body is circular, square, or oval.

[0014] Furthermore, the housing is provided with a baffle rib, and the baffle rib is located above the retaining ring, forming the travel channel of the button body.

[0015] Furthermore, the housing is provided with a pressure rib, and the pressure rib is located below the retaining ring. The silicone button is assembled on the pressure rib and pressed between the housing and the circuit board.

[0016] Furthermore, the reinforcing rib is circular.

[0017] Furthermore, the circuit board is a carbon film circuit board.

[0018] Furthermore, the button body can be a PC button, a PC+10%GF button, a PC+20%GF button, or a POM button.

[0019] A button device for an electronic instrument, the button device comprising at least two of the aforementioned button components.

[0020] Furthermore, the housings of adjacent button components are interconnected to form a single unit.

[0021] The beneficial effects of this utility model are:

[0022] The button assembly of this utility model relies on the elastic stop of the button body itself to ensure that it does not fall off after being engaged with the shell, and relies on the elastic wall and conductive particles of the silicone button to achieve the switching function with the circuit board. Moreover, no additional soldering components are required, resulting in high assembly efficiency and low processing cost.

[0023] The button assembly of this utility model uses a plastic button body and a silicone button for elastic fit, which has good sealing performance, good resistance to high and low temperatures and salt spray, long service life and low quality risks.

[0024] The button device of this invention is used in electronic instruments, which simplifies the product processing and manufacturing process, improves the product quality and performance, and reduces the overall cost of the instrument.

[0025] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0026] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0027] Figure 1 The diagram shows the assembly outline of the button assembly of this utility model.

[0028] Figure 2 A cross-sectional view of the button device of this utility model is shown.

[0029] Figure 3 A cross-sectional view of the button assembly of this utility model in the on state is shown.

[0030] The components include: 1. Outer shell; 2. Button body; 3. Retaining rib; 4. Retaining ring; 5. Elastic stop block; 6. Pressure rib; 7. Silicone button; 8. Spring wall; 9. Conductive particle layer; 10. Circuit board. Detailed Implementation

[0031] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein.

[0032] Example 1

[0033] Figure 1 The diagram shows the assembly outline of the button assembly of this utility model.

[0034] like Figure 1 As shown, this utility model provides a button assembly for an electronic instrument, including a housing 1, a button body 2, a silicone button 7, and a circuit board 10; the button body 2 is assembled in the housing 1, and the silicone button 7 is assembled between the housing 1 and the circuit board 10;

[0035] The silicone button 7 has a ring of spring wall 8 at the bottom and a conductive particle layer 9 at the bottom.

[0036] When the button body 2 is pressed, the spring wall 8 deforms downward, causing the conductive particle layer 9 to contact the circuit board 10, at which point the circuit is connected; Figure 3 A cross-sectional view of the button assembly of this utility model in the on state is shown;

[0037] When the button body 2 is released, the spring wall 8 rebounds upward to support the button body 2, causing the conductive particle layer 9 to detach from the circuit board 10, at which point the circuit is disconnected.

[0038] In one example, the outer casing 1 is provided with baffle 3, baffle ring 4 and pressure rib 6 from top to bottom;

[0039] The button body 2 is provided with two symmetrical elastic blocks 5. The distance between the two elastic blocks 5 after compression is less than the diameter of the retaining ring 4, and the distance after rebound is greater than the diameter of the retaining ring 4, so that the button body 2 can be assembled from the front of the outer shell 1 without falling off.

[0040] The baffle 3 serves both to prevent dust and water damage and to control the travel of the button body 2, preventing the circuit board 10 from deforming due to excessive stress.

[0041] The pressure rib 6 is circular, and the silicone button 7 is assembled on the circular pressure rib 6, pressing between the outer shell 1 and the circuit board 10, which can enhance the sealing of the circuit board 10.

[0042] In one example, the button body 2 is made of tough materials such as PC, PC+10%GF, PC+20%GF, and POM, and its shape can be round, square, oval, etc.; the circuit board needs to be a carbon film circuit board; the plastic button body and silicone button are elastically matched, which has good sealing performance, good resistance to high and low temperatures and salt spray, long service life and low quality risks.

[0043] Example 2

[0044] Figure 2 A cross-sectional view of the button device of this utility model is shown.

[0045] This utility model provides a button device for an electronic instrument, including at least two button assemblies; the housings 1 of adjacent button assemblies are connected to each other to form a whole.

[0046] The button device of this invention is used in electronic instruments, which simplifies the product processing and manufacturing process, improves the product quality and performance, and reduces the overall cost of the instrument.

[0047] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A button assembly for an electronic instrument, characterized in that: It includes a housing (1), a button body (2), a silicone button (7), and a circuit board (10); the button body (2) is assembled in the housing (1), and the silicone button (7) is assembled between the housing (1) and the circuit board (10); The silicone button (7) has a ring of spring wall (8) at the bottom and a conductive particle layer (9) at the bottom. When the button body (2) is pressed, the spring wall (8) deforms downward, so that the conductive particle layer (9) contacts the circuit board (10), and the circuit is turned on. When the button body (2) is released, the spring wall (8) rebounds upward to support the button body (2), causing the conductive particle layer (9) to detach from the circuit board (10), at which point the circuit is disconnected.

2. The button assembly of the electronic instrument according to claim 1, characterized in that: A retaining ring (4) is provided in the middle of the inner wall of the outer shell (1). The button body (2) is provided with two symmetrical elastic blocks (5). The distance between the two elastic blocks (5) after compression is less than the diameter of the retaining ring (4), and the distance after rebound is greater than the diameter of the retaining ring (4), so that the button body (2) can be assembled from the front of the outer shell (1) without falling off.

3. The button assembly of the electronic instrument according to claim 1, characterized in that: The button body (2) is circular, square or elliptical.

4. The button assembly of the electronic instrument according to claim 2, characterized in that: The outer casing (1) is provided with a baffle (3), and the baffle (3) is located above the retaining ring (4), forming the travel channel of the button body (2).

5. The button assembly of the electronic instrument according to claim 2, characterized in that: The housing (1) is provided with a pressure rib (6), and the pressure rib (6) is located below the retaining ring (4). The silicone button (7) is assembled on the pressure rib (6) and pressed between the housing (1) and the circuit board (10).

6. The button assembly of the electronic instrument according to claim 5, characterized in that: The reinforcing rib (6) is circular.

7. The button assembly of the electronic instrument according to claim 1, characterized in that: The circuit board (10) is a carbon film circuit board.

8. The button assembly of the electronic instrument according to claim 1, characterized in that: The button body (2) adopts a PC button, a PC+10%GF button, a PC+20%GF button or a POM button.

9. A push-button device for an electronic instrument, characterized in that: The button device includes at least two button components as described in any one of claims 1-8.

10. The button device of the electronic instrument according to claim 9, characterized in that: The housings (1) of adjacent button components are connected to each other to form a whole.

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