Microswitch

Abstract

The application provides a micro switch, which comprises a switch box, a first conductive sheet, a second conductive sheet, a switch spring and a button. The first conductive sheet and the second conductive sheet are installed in the switch box. The switch spring is fixedly installed on the first conductive sheet and has a connecting part, one end of the connecting part extending above the second conductive sheet. The button is rotatably installed on the switch box and located above the switch spring, and the button is fixedly connected with the switch spring. When the button is pressed, the one end of the connecting part above the second conductive sheet can be in contact with the second conductive sheet, so that the first conductive sheet and the second conductive sheet are conductive. The application can reduce the sound when the micro switch is pressed and improve the use quality of the sun visor.

Description

[Technical Field]

[0001] This application relates to the field of automotive interior technology, and more particularly to a micro switch for use in automotive sun visors. [Background Technology]

[0002] As an indispensable part of car interiors, the demand for car sun visors is increasing with the growing number of cars sold. Sun visors with vanity mirrors are becoming increasingly common as an added-function interior accessory. However, in current sun visor switch designs, pressing the micro-motion mechanism when opening the sun visor mirror cover produces a noise, affecting the quality of the sun visor's use. [Utility Model Content]

[0003] This application provides a micro switch that can reduce the noise when the micro switch is pressed, thereby improving the quality of sun visor use.

[0004] This application provides a micro switch, including a switch box, a first conductive sheet, a second conductive sheet, a switch spring, and a button;

[0005] The first conductive sheet and the second conductive sheet are installed inside the switch box;

[0006] The switch spring is fixedly mounted on the first conductive sheet, and the switch spring has a connecting portion, one end of which extends to the top of the second conductive sheet;

[0007] The button is rotatably mounted on the switch box and located above the switch spring; the button is fixedly connected to the switch spring.

[0008] When the button is pressed, the end of the connecting part located above the second conductive sheet can contact the second conductive sheet, so that the first conductive sheet and the second conductive sheet are connected.

[0009] Optionally, the switch spring also has a pressing plate and an elastic part; the pressing plate is fixedly connected to the first conductive sheet through the elastic part; the button is fixedly connected to the pressing plate; and the connecting part is fixedly connected to the pressing plate.

[0010] Optionally, a limiting piece is provided on the side of the pressing plate away from the button.

[0011] Optionally, the elastic part includes a first spring sheet, a second spring sheet, a third spring sheet, and a fourth spring sheet; the first spring sheet, the second spring sheet, the third spring sheet, and the fourth spring sheet are connected in sequence to form a bending structure; the end of the first spring sheet away from the second spring sheet is fixedly connected to the pressing plate, and the fourth spring sheet is fixedly connected to the first conductive sheet.

[0012] Optionally, the limiting piece is located directly above the second spring piece.

[0013] Optionally, the button includes a pressing protrusion and a connector, the pressing protrusion is fixedly disposed at one end of the connector, and the other end of the connector is rotatably connected to the switch box; the connector is engaged with the pressing plate.

[0014] Optionally, the pressing plate is provided with two first claws, which are located at opposite edges of the pressing plate; the connector is provided with second claws that are adapted to the first claws, and the second claws correspond one-to-one with the first claws.

[0015] Optionally, the end of the connector away from the pressing protrusion is fixedly connected to a rotating shaft, and the rotating shaft is rotatably connected to the switch box.

[0016] Optionally, the switch box is provided with a cover, and the cover has an opening for clearance. The pressing protrusion passes through the opening and is located outside the switch box.

[0017] Optionally, the connector is a plate-like structure.

[0018] This application utilizes a button that is rotated and mounted on a switch box. The switch spring is located below the button, and the button and the switch spring are fixedly connected. When the switch spring is pressed, there is no collision between the button and the switch spring, thus avoiding noise. In addition, the switch spring has a connecting part that extends to the top of the second conductive sheet. When the switch spring is pressed, the end of the connecting part located on the top of the second conductive sheet contacts the second conductive sheet, making the second conductive sheet conductive with the first conductive sheet and thus enabling power supply. The method of using the connecting part to contact the second conductive sheet for conduction can also reduce the collision noise when using the switch and improve the quality of use. [Attached Image Description]

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the mounting structure of a micro switch and a circuit board provided in an embodiment of this application;

[0021] Figure 2 A schematic diagram of the mounting structure of a micro switch and a circuit board provided in an embodiment of this application from another perspective;

[0022] Figure 3This is a schematic diagram of the installation structure of the switch box, the first conductive sheet, and the button.

[0023] Figure 4 This is a schematic diagram of the installation structure of the switch box, the first conductive sheet, the switch spring, and the second conductive sheet.

[0024] Figure 5 This is a schematic diagram of the installation structure of the switch spring and the button;

[0025] Figure 6 This is a schematic diagram of the installation structure of the switch spring, the first conductive piece, and the second conductive piece;

[0026] Figure 7 yes Figure 6 A diagram from another perspective.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Switch box, 2-First conductive sheet, 3-Second conductive sheet, 4-Switch spring, 5-Button, 6-First claw, 7-Second claw, 8-Shaft, 9-Cover, 10-Allowing opening, 11-Circuit board, 12-First wire harness, 13-Second wire harness, 41-Connecting part, 42-Pressing plate, 43-Elastic part, 44-Limiting piece, 51-Pressing protrusion, 52-Connecting piece, 431-First spring, 432-Second spring, 433-Third spring, 434-Fourth spring.

Detailed Implementation Methods

[0029] To better understand the technical solutions in this specification, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0030] It should be understood that the described embodiments are merely some, not all, of the embodiments in this specification. All other embodiments obtained by those skilled in the art based on the embodiments in this specification without inventive effort are within the scope of protection of this specification.

[0031] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this specification. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0032] The technical solutions protected by the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0033] Please see Figures 1-7This application provides a micro switch comprising a switch housing 1, a first conductive sheet 2, a second conductive sheet 3, a switch spring 4, and a button 5. The first conductive sheet 2 and the second conductive sheet 3 are installed inside the switch housing 1; specifically, the first conductive sheet 2 and the second conductive sheet 3 can be installed at the bottom of the switch housing 1. The switch spring 4 is fixedly installed on the first conductive sheet 2 and has a connecting portion 41, one end of which extends above the second conductive sheet 3 without contacting it. Specifically, the connecting portion 41 can be a copper sheet, and when the connecting portion 41 contacts the second conductive sheet 3, it is in surface contact. When the button 5 is not pressed, the distance between the lower surface of the end of the connecting portion 41 on the second conductive sheet 3 and the upper surface of the second conductive sheet 3 is 1-3 mm. The button 5 is rotatably installed on the switch housing 1 and located above the switch spring 4, and the button 5 is fixedly connected to the switch spring 4. This arrangement prevents collision between the button 5 and the switch spring 4 when the button 5 is pressed, thus avoiding the generation of sound.

[0034] When button 5 is pressed, the end of connecting part 41 located above the second conductive sheet 3 can contact the second conductive sheet 3, so that the first conductive sheet 2 and the second conductive sheet 3 are connected to achieve the function of power supply.

[0035] The switch spring 4 is made of copper sheet and manufactured by cold rolling / cold drawing process to ensure that the switch spring 4 has good conductivity and will not undergo plastic deformation during use. When the button 5 is pressed, the switch spring 4 undergoes elastic deformation. When the button 5 is released, the switch spring 4 returns to its original shape.

[0036] The switch box 1 is also equipped with a cover 9, which has a clearance opening 10. The button 5 is made of insulating material and includes a pressing protrusion 51 and a connector 52. One end of the connector 52 is fixedly mounted on the pressing protrusion 51, specifically on the side of the connector 52 near the cover 9. The other end of the connector 52 is rotatably connected to the switch box 1. Specifically, the end of the connector 52 away from the pressing protrusion 51 is fixedly connected to a rotating shaft 8, which is rotatably connected to the switch box 1. For easy installation, the connector 52 and the switch spring 4 can be designed to snap together. The pressing protrusion 51 passes through the clearance opening 10 and is located outside the switch box 1, which facilitates pressing during use. As one embodiment, the pressing protrusion 51 can be designed such that when the pressing protrusion 51 is pressed until its upper surface (i.e., the side away from the cover 9) is on the same plane as the cover 9, the connecting part 41 contacts the second conductive sheet 3. For ease of installation, the cover 9 and the switch box 1 can be designed to snap together, such as by setting a square snap hole on the cover 9 and setting a matching snap foot on the switch box 1.

[0037] This application utilizes a button 5 that is rotatably mounted on a switch box 1. A switch spring 4 is positioned below the button 5, and the button 5 is fixedly connected to the switch spring 4. When the switch spring 4 is pressed, there is no collision between the button 5 and the switch spring 4, thus avoiding noise. In addition, a connecting part 41 is provided on the switch spring 4, extending to the top of the second conductive sheet 3. When the switch spring 4 is pressed, the end of the connecting part 41 located at the top of the second conductive sheet 3 contacts the second conductive sheet 3, making the second conductive sheet 3 and the first conductive sheet 2 conduct electricity. The method of using the connecting part 41 to contact the second conductive sheet also reduces the collision noise when using the switch. Furthermore, after the external force is removed, the button 5 resets under the elastic force of the switch spring 4. Since the button 5 is fixedly connected to the switch spring 4, it can prevent the button 5 from bouncing and colliding with the box cover 9 to generate noise, thereby improving the quality of use.

[0038] In one embodiment, the switch spring 4 also has a pressing plate 42 and an elastic part 43; the pressing plate 42 is fixedly connected to the first conductive sheet 2 through the elastic part 43; the connector 52 of the button 5 is snapped into the pressing plate 42; and the connecting part 41 is fixedly connected to the pressing plate 42. A limiting piece 44 is provided on the side of the pressing plate 42 away from the button 5. The limiting piece 44 can limit the maximum distance of the button 5 being pressed down, thus preventing damage to the switch spring 4.

[0039] Furthermore, the elastic part 43 includes a first spring piece 431, a second spring piece 432, a third spring piece 433, and a fourth spring piece 434; the first spring piece 431, the second spring piece 432, the third spring piece 433, and the fourth spring piece 434 are connected in sequence to form a bending structure, the end of the first spring piece 431 away from the second spring piece 432 is fixedly connected to the pressing plate 42, and the fourth spring piece 434 is fixedly connected to the first conductive sheet 2. In a preferred embodiment, the second spring 432 is arranged parallel to the pressing plate 42, the fourth spring 434, and the first conductive sheet 2. The second spring 432 is located below the pressing plate 42. The second spring 432 is fixedly connected to the pressing plate 42 via the first spring 431 and to the fourth spring 434 via the third spring 433. The limiting piece 44 is located at the end of the pressing plate 42 away from the first spring 431 and directly above the second spring 432. Pressing the button 5 causes the limiting piece 44 to move downwards via the pressing plate 42 until it abuts against the second spring 432. The connection between the pressing plate 42, the first spring 431, the second spring 432, the third spring 433, and the fourth spring 434 can be achieved by welding or by integral molding from a bent copper sheet. Of course, in specific implementations, the elastic part 43 can also be other shapes, such as Z-shaped or serpentine.

[0040] The pressing plate 42 is provided with two first claws 6, which are located at opposite edges of the pressing plate 42. The connecting member 52 is provided with second claws 7 that are adapted to the first claws 6, and the second claws 7 correspond one-to-one with the first claws 6. The pressing plate 42 and the connecting member 52 can be quickly fixed by the engagement of the second claws 7 and the first claws 6. The connecting member 52 has a plate-like structure.

[0041] In one implementation, the switch box 1 can be fixedly mounted on a circuit board 11. The area of ​​the circuit board 11 surrounded by the switch box 1 serves as the bottom of the switch box 1. The first conductive sheet 2 and the second conductive sheet 3 are fixedly mounted on the bottom of the box, but are not connected to each other. In specific installation, the first conductive sheet 2 and the second conductive sheet 3 can be fixed to the circuit board 11 by soldering. The first conductive sheet 2 is electrically connected to the first wiring harness 12, and the second conductive sheet 3 is electrically connected to the second wiring harness 13. When the pressing protrusion 51 of the button 5 is pressed, the pressing plate 42 moves downward through the connecting member 52, the elastic part 43 deforms, and the connecting part 41 moves downward to contact the second conductive sheet 3, making the second conductive sheet 3 conductive with the first conductive sheet 2, thus realizing the electrical connection between the first wiring harness 12 and the second wiring harness 13.

[0042] The above description is merely a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification should be included within the scope of protection of this specification.

Claims

1. A micro switch, characterized in that, It includes a switch box (1), a first conductive sheet (2), a second conductive sheet (3), a switch spring (4), and a button (5); The first conductive sheet (2) and the second conductive sheet (3) are installed inside the switch box (1); The switch spring (4) is fixedly mounted on the first conductive sheet (2). The switch spring (4) has a connecting part (41), one end of which extends above the second conductive sheet (3). The button (5) is rotatably mounted on the switch box (1) and located above the switch spring (4). The button (5) is fixedly connected to the switch spring (4). When the button (5) is pressed, the end of the connecting part (41) located above the second conductive sheet (3) can contact the second conductive sheet (3), so that the first conductive sheet (2) and the second conductive sheet (3) are connected.

2. The micro switch according to claim 1, characterized in that, The switch spring (4) also has a pressing plate (42) and an elastic part (43); the pressing plate (42) is fixedly connected to the first conductive sheet (2) through the elastic part (43); the button (5) is fixedly connected to the pressing plate (42); the connecting part (41) is fixedly connected to the pressing plate (42).

3. The micro switch according to claim 2, characterized in that, The pressing plate (42) has a limiting piece (44) on the side away from the button (5).

4. The micro switch according to claim 3, characterized in that, The elastic part (43) includes a first spring sheet (431), a second spring sheet (432), a third spring sheet (433), and a fourth spring sheet (434); the first spring sheet (431), the second spring sheet (432), the third spring sheet (433), and the fourth spring sheet (434) are connected in sequence to form a bending structure; the end of the first spring sheet (431) away from the second spring sheet (432) is fixedly connected to the pressing plate (42), and the fourth spring sheet (434) is fixedly connected to the first conductive sheet (2).

5. The micro switch according to claim 4, characterized in that, The limiting piece (44) is located directly above the second spring piece (432).

6. The micro switch according to claim 2, characterized in that, The button (5) includes a pressing protrusion (51) and a connector (52). The pressing protrusion (51) is fixedly disposed at one end of the connector (52), and the other end of the connector (52) is rotatably connected to the switch box (1). The connector (52) is engaged with the pressing plate (42).

7. The micro switch according to claim 6, characterized in that, The pressing plate (42) is provided with two first claws (6), and the two first claws (6) are respectively located at opposite edges of the pressing plate (42); the connector (52) is provided with second claws (7) that are adapted to the first claws (6), and the second claws (7) correspond one-to-one with the first claws (6).

8. The micro switch according to claim 6, characterized in that, The end of the connector (52) away from the pressing protrusion (51) is fixedly connected to a rotating shaft (8), and the rotating shaft (8) is rotatably connected to the switch box (1).

9. The micro switch according to claim 6, characterized in that, The switch box (1) is provided with a cover (9), and the cover (9) is provided with a clearance opening (10). The pressing protrusion (51) passes through the clearance opening (10) and is located outside the switch box (1).

10. The micro switch according to claim 6, characterized in that, The connector (52) is a plate-shaped structure.

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