Double-gear implementation structure of automobile push switch

Abstract

The utility model discloses a double-gear implementation structure of an automobile push switch. The double-gear implementation structure comprises a circuit board, a conductive rubber plate arranged on the circuit board, and a pressing rod arranged above the conductive rubber plate, a pressing deformation boss is arranged on the conductive rubber plate, a first conductive rubber column and a second conductive rubber column are arranged in the pressing deformation boss, the height of the first conductive rubber column is larger than that of the second conductive rubber column, and a pressing deformation part is arranged at the end, connected with the pressing deformation boss, of the first conductive rubber column; a pressing block pressed on the pressing deformation boss is arranged below the pressing rod, and the pressing rod is connected to the center position of the pressing block. The push switch has the advantages of being simple in structure, convenient to process, small in occupied space and convenient to arrange, and can be widely applied to the field of automobile push switches.

Description

Technical Field

[0001] The utility model relates to the field of automotive switches, in particular to a dual-gear implementation structure for an automotive push switch. Background Art

[0002] The push switch is a common switch structure in automotive interior switches, usually a single-gear structure. In some scenarios, a dual-gear implementation is required. For example, the automatic and manual functions of windshield wipers can be achieved through two gears of a push switch. However, the existing dual-gear implementation of push switches all uses two independent conductive rubber columns. By designing the size of the bowl-shaped structure of the conductive rubber columns, the dual-gear function is achieved. At the same time, the pressure lever also adopts an eccentric structure, close to one conductive rubber column and far from the other conductive rubber column. When pressed, the conductive rubber column closer to the pressure lever deforms and contacts first to achieve the first-gear function. Continuing to press down, the other conductive rubber column deforms to achieve the second-gear function. For example, Chinese Patent Application No. 201520160441.8 discloses an automotive electric window switch, which is the above structure. Although this structure can achieve the dual-gear function, it occupies a large space and has high precision requirements. Assembly errors may lead to improvements in the eccentric position of the pressure lever, and the situation where the two conductive rubber columns deform and conduct simultaneously may occur. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a dual-gear implementation structure for an automotive push switch to solve the problem of large space occupation of the existing dual-gear implementation structure of push switches.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a dual-gear implementation structure for an automotive push switch, including a circuit board, a conductive rubber plate arranged on the circuit board, and a pressure lever arranged above the conductive rubber plate; a pressing deformation boss is arranged on the conductive rubber plate, a first conductive rubber column and a second conductive rubber column are arranged in the pressing deformation boss, the height of the first conductive rubber column is greater than that of the second conductive rubber column, and a pressing deformation part is arranged at the end of the first conductive rubber column connected to the pressing deformation boss; a pressing block pressing on the pressing deformation boss is arranged below the pressure lever, and the pressure lever is connected to the central position of the pressing block.

[0005] To improve the reliability of pressing contact, two first conductive rubber columns are symmetrically arranged left and right on the pressing deformation boss, and two second conductive rubber columns are symmetrically arranged front and back on the pressing deformation boss.

[0006] Furthermore, conductive particles are arranged on at least one of the first conductive rubber column and the second conductive rubber column.

[0007] Preferably, the pressing deformation boss includes a columnar pressing part above and a conical deformation part below. The top surface of the columnar pressing part is an elliptical plane structure. The first conductive adhesive column is located on the left - right central axis of the elliptical plane structure, and the second conductive adhesive column is located on the front - back central axis of the elliptical plane structure.

[0008] To ensure that the pressing block moves in the vertical direction, a housing is further included. Guide grooves are provided on both sides of the pressing block, and vertical guiding ribs matching the guide grooves are provided on the inner wall of the housing.

[0009] Advantages of the present utility model: In the present utility model, two types of conductive adhesive columns are provided within one pressing deformation boss, one being deformable and the other being non - deformable, thereby realizing two gears of the push - button switch, and having the advantages of simple structure, convenient processing, and small occupied space. At the same time, by symmetrically arranging the two first conductive adhesive columns and the second conductive adhesive columns, the reliability of pressing contact is ensured. The pressing block ensures the uniformity of the force on the pressing deformation boss, avoiding local compression deformation, causing the pressing deformation boss to skew, and affecting the contact conduction sequence and operating feel of the first conductive adhesive column and the second conductive adhesive column. The cooperation of the guide groove and the vertical guiding rib ensures that the pressing block moves in the vertical direction, which also ensures the reliability of the pressing contact and the operating feel of the first conductive adhesive column and the second conductive adhesive column.

[0010] Hereinafter, the present utility model will be described in more detail in conjunction with the drawings and embodiments. Brief Description of the Drawings

[0011] Figure 1 is a cross - sectional view of the present utility model.

[0012] Figure 2 is a three - dimensional structural schematic diagram of the cooperation between the pressing rod and the conductive adhesive plate in the present utility model.

[0013] Figure 3 is a three - dimensional structural schematic diagram of the conductive adhesive plate in the present utility model.

[0014] Figure 4 is a three - dimensional structural schematic diagram of the cooperation between the pressing rod and the housing in the present utility model.

[0015] Figure 5 is a schematic diagram of the cooperation between the conductive adhesive plate and the circuit board when the pressing rod of the present utility model is not pressed down.

[0016] Figure 6 is a schematic diagram of the cooperation between the first conductive adhesive column and the circuit board when the first conductive adhesive column is conducting in the present utility model.

[0017] Figure 7 is a schematic diagram of the cooperation between the second conductive adhesive column and the circuit board when the second conductive adhesive column is conducting in the present utility model. Detailed Embodiment

[0018] Embodiment, such as Figures 1 to 7 As shown, a dual-gear implementation structure of an automotive push switch includes a mutually assembled housing 8 and a base 9, and a button 10 disposed above the housing 8. A circuit board 1 is disposed inside the housing 8, and a conductive rubber sheet 2 is disposed on the circuit board 1. A pressing deformation boss 4 is disposed on the conductive rubber sheet 2. A pressing rod 3 is installed on the button 10, and a pressing block 7 is connected to the bottom of the pressing rod 3. The pressing rod 3 is connected to the central position of the pressing block 7. The pressing block 7 acts on the pressing deformation boss 4. The pressing deformation boss 4 includes a columnar pressing portion 41 above and a conical deformation portion 42 below. The button 10 drives the pressing rod 3 and its pressing block 7 to move, applying pressure to the pressing deformation boss 4 to cause the pressing deformation boss 4 to deform, thereby realizing the gear feel.

[0019] A first conductive rubber column 5 and a second conductive rubber column 6 are disposed inside the pressing deformation boss 4. The height of the first conductive rubber column 5 is greater than that of the second conductive rubber column 6, and a pressing deformation portion 51 is provided at the end of the first conductive rubber column 5 connected to the pressing deformation boss 4. The second conductive rubber column 6 is a solid structure. During pressing, the pressing deformation boss 4 deforms first under the action of the downward pressure, causing the first conductive rubber column 5 to contact and conduct with the circuit board 1 below first. The conical deformation portion 42 of the pressing deformation boss 4 deforms to generate a first-gear feel, as Figure 6 shown. Continuing to press down, the pressing deformation portion 51 on the first conductive rubber column 5 deforms to generate a second-gear feel. At the same time, after deformation, the second conductive rubber column 6 contacts and conducts with the circuit board 1, as Figure 7 shown. This structure can not only realize the two-stage pressing function, but also occupies a small space, and can reduce the layout space of the switch.

[0020] To ensure the gear feel of the switch and the stability of contact conduction, two first conductive rubber columns 5 are symmetrically arranged left and right on the pressing deformation boss 4, and two second conductive rubber columns 6 are symmetrically arranged front and back on the pressing deformation boss 4. The top surface of the columnar pressing portion 41 is an elliptical plane structure. The two first conductive rubber columns 5 are located on the left and right central axes of the elliptical plane structure, and the two second conductive rubber columns 6 are located on the front and back central axes of the elliptical plane structure. Conductive particles are provided on at least one of the first conductive rubber column 5 and the second conductive rubber column 6 to contact and conduct with the circuit board 1. Preferably, conductive particles are provided on both the two first conductive rubber columns 5 and the two second conductive rubber columns 6. At the same time, to ensure that the pressing block 7 moves in the vertical direction at any position of the pressed button 10, guide grooves 71 are provided on both sides of the pressing block 7, and vertical guide ribs 81 matching the guide grooves 71 are provided on the inner wall of the housing 8.

[0021] The above has made an exemplary description of the present utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present utility model; or without improvement, the above concept and technical solution of the present utility model are directly applied to other occasions, all are within the protection scope of the present utility model.

Claims

1. A dual-gear implementation structure of a push switch for an automobile, comprising a circuit board (1), a conductive rubber plate (2) arranged on the circuit board (1), and a pressure rod (3) arranged above the conductive rubber plate (2); characterized in that: The conductive rubber plate (2) is provided with a pressing and deforming boss (4), and a first conductive rubber column (5) and a second conductive rubber column (6) are provided inside the pressing and deforming boss (4), the height of the first conductive rubber column (5) is greater than that of the second conductive rubber column (6), and a pressing and deforming portion (51) is provided at the end of the first conductive rubber column (5) connected to the pressing and deforming boss (4); a pressing block (7) pressed on the pressing and deforming boss (4) is provided below the pressing rod (3), and the pressing rod (3) is connected to the center position of the pressing block (7).

2. The dual-gear implementation structure of the automobile push switch according to claim 1, characterized in that: Two first conductive rubber columns (5) are symmetrically arranged on the pressing and deforming boss (4), and two second conductive rubber columns (6) are symmetrically arranged on the pressing and deforming boss (4).

3. The dual-gear implementation structure of the automobile push switch according to claim 2, characterized in that: Conductive particles are arranged on at least one of the first conductive rubber column (5) and the second conductive rubber column (6).

4. The dual-gear implementation structure of the automobile push switch according to claim 2, characterized in that: The pressing deformation boss (4) comprises an upper columnar pressing portion (41) and a lower conical deformation portion (42); the top surface of the columnar pressing portion (41) is an elliptical plane structure; the first conductive rubber column (5) is located on the left and right central axes of the elliptical plane structure; and the second conductive rubber column (6) is located on the front and rear central axes of the elliptical plane structure.

5. The dual-gear implementation structure of the automobile push switch according to claim 1, characterized in that: It also comprises a shell (8), guide grooves (71) are arranged on both sides of the pressing block (7), and vertical guide ribs (81) cooperating with the guide grooves (71) are arranged on the inner wall of the shell (8).

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