Small-size waterproof automobile trunk switch

Abstract

The utility model discloses a small-size waterproof automobile trunk switch, which solves the problem that the traditional automobile trunk switch is difficult to consider both small size and good waterproof effect. The switch comprises a shell assembly, the shell assembly is formed through rubber coating injection molding, and the shell assembly comprises a shell (12); the button (10) comprises a pressing part and an extending part, and the button is installed from the top of the shell (12); the circuit board is provided with a micro switch; the sliding block is installed from the bottom of the shell, the circuit board is fixed to the bottom of the sliding block, the microswitch is located in the sliding block, and the extending part is inserted from the top of the sliding block and is close to the microswitch on the circuit board. And when the button is pressed, the shell assembly deforms, so that the extension part can trigger the microswitch.

Description

Technical Field

[0001] The utility model relates to a small-volume waterproof automobile trunk switch. Background Art

[0002] Traditional car trunk switches often have difficulty in achieving both small size and good waterproof effect, so it is very important to develop a car trunk opening switch with a small volume and waterproof structure. Utility Model Content

[0003] The utility model provides a small-volume waterproof automobile trunk switch which has a simple and compact structure and is convenient and quick to assemble.

[0004] According to one aspect of the embodiment, a car trunk switch is provided, comprising: a shell assembly, the shell assembly is formed by overmolding, the shell assembly comprising: a shell; a button, the button comprising a pressing portion and an extending portion, the button is installed from the top of the shell; a circuit board, the circuit board having a micro switch; and a slider, the slider is installed from the bottom of the shell, the circuit board is fixed to the bottom of the slider, the micro switch is located in the slider, the extending portion is inserted from the top of the slider and close to the micro switch on the circuit board, and when the button is pressed, the shell assembly will be deformed so that the extending portion can trigger the micro switch.

[0005] In some examples, the button is hard plastic encapsulated in soft plastic.

[0006] In some examples, the shell assembly also includes an inner shell nested in the outer shell, the inner shell having a circle of protruding limiting portions on the side surface, and the outer shell having a circle of bosses near the top position, the portion of the inner shell below the limiting portion is placed in the outer shell, and the portion above the limiting portion is exposed to the outside, the limiting portion is located on the boss, and there is no gap between the two, the button is installed from the top of the inner shell, so that the extension portion is inserted into the slider, and the lower surface of the pressing portion is seamlessly engaged with the top of the inner shell.

[0007] In some examples, the distance between the inner boss of the housing and the top is consistent with the thickness of the limiting portion.

[0008] In some examples, after the slider is installed in the housing, it forms a cavity for accommodating the circuit board with the bottom of the housing.

[0009] In some examples, the bottom of the slider has a flange, and the circuit board is fixed on the flange.

[0010] In some examples, after the circuit board is fixed on the slider, glue is injected into the cavity for sealing.

[0011] In some examples, the flange has a slot and a screw hole for fixing the circuit board, and the inner wall of the shell has a protrusion matching the slot. During assembly, the button is pressed by fingers to align the slot of the slider with the protrusion on the shell and press it in until it can no longer be pressed.

[0012] In some examples, the slider has a guide rib in it, and the extension portion of the button has a guide surface matching the rib, and when the slider is pressed in, the rib is aligned with the guide surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is provided in an embodiment of the small volume waterproof automobile trunk switch exploded diagram.

[0014] Figure 2 This is an assembly diagram of a housing component provided in one embodiment of the utility model.

[0015] Figure 3 This is an exploded view of a housing assembly provided in one embodiment of the utility model.

[0016] Figure 4 It is a schematic diagram of a slider provided in one embodiment of the utility model. DETAILED DESCRIPTION

[0017] Figure 1 This is an exploded view of a small waterproof car trunk switch. Figure 1 As shown, the switch includes a housing assembly 1 , a slider 2 , a circuit board 3 and a wiring harness 4 .

[0018] like Figure 2 , Figure 3 As shown, the housing assembly 1 includes a button 10, an inner housing 11 and an outer housing 12. The button 10 includes a pressing portion 100 and an extending portion 101 extending into the inner housing 11. The pressing portion 100 is an arc-shaped surface. The arc-shaped surface structure helps to enhance the aesthetics of the button 10, and it is also comfortable for fingers to press on it. The extending portion 101 is placed in the inner housing 11. The lower surface of the pressing portion 100 is joined to the top 113 of the inner housing 11 without leaving a gap to prevent water from entering. The pressing portion 100 and the top 113 of the inner housing 11 are consistent in size, so that the transition between the two is natural, and there is no protruding structure that affects the appearance.

[0019] The inner shell 11 and the outer shell 12 are hollow structures with openings at both ends. The inner shell 11 has a circle of protruding limit parts 110 on the side. The outer shell 12 has a circle of bosses 120 near the top 121. The portion 111 below the limit part 110 of the inner shell 11 is placed in the outer shell 12, and the portion 112 above the limit part 110 is exposed to the outside, and the limit part 110 is located on the boss 120 (they are tightly joined without leaving a gap to prevent water from entering). The distance between the boss 120 and the top 121 is consistent with the thickness of the limit part 110, so that after the inner shell 11 and the outer shell 12 are assembled, the surface 114 of the limit part 110 of the inner shell 11 is flush with the top 121 of the outer shell 12, making the entire structure more compact and beautiful.

[0020] like Figure 4 As shown, the slider 2 is also a hollow structure with two ends open. The bottom of the slider 2 has a flange 20 for mounting the circuit board 3. The flange 20 has a plurality of screw holes 21 and a slot 22. The slider 2 is installed from the bottom 122 of the housing 12. The inner wall of the housing 12 has a protrusion matching the slot 22 (not shown in the figure). The extension 101 of the button 10 is to extend into the slider 2 and approach the micro switch 31 on the slider 2. The slider 2 has a guide rib 23, and the extension 101 of the button 10 has a guide surface 102 matching the rib 23. During assembly, press the button 10 lightly with your fingers, align the slot 22 of the slider 2 with the protrusion on the housing 12 and press it in until it can't be pressed. After the slider 2 is installed from the bottom 122 of the housing 12, the extension 101 of the button 10 extends into the slider 2, and the rib 23 engages with the guide surface 102.

[0021] After the slider 2 is installed in the housing 12, it has a height with the bottom 122 of the housing 12, forming a cavity for accommodating the circuit board 3. The circuit board 3 is connected to the flange 20 of the slider 2 by screws 30. After the circuit board 3 is fixed, glue (epoxy resin AB glue) is injected into the cavity for sealing to achieve waterproof effect. The glue should completely cover the back of the circuit board (the micro switch side is the front). It is forbidden to overflow the glue and the glue is forbidden to exceed the housing 12.

[0022] The switch of the utility model is installed on the panel of the car trunk, and the specific installation method is a conventional technology for those skilled in the art. For example, the outer shell 12 is embedded in the panel, and the button 10 and the part above the limit portion 110 of the inner shell 11 are exposed. On the surface of the outer shell 12, there are buckles 123 for fixing the outer shell 12 to the panel and ribs 124 for guiding and positioning when fixing the outer shell 12. The car panel has female buckles and slots (not shown in the figure) that match the buckles 123 and ribs 124 respectively.

[0023] Pressing the button 10 will cause the button 10 to deform, and the extension portion 101 will stretch toward the circuit board, thereby touching the micro switch. The wiring harness 4 connects the circuit board 3 to the car computer. The computer detects that the micro switch is pressed and sends an unlocking command to the electronic lock of the trunk to open the trunk.

[0024] The button 10, the inner shell 11, and the outer shell 12 are molded by overmolding, and the overmolding is soft rubber, which not only creates a soft surface for the button 10, but also ensures that when the button is pressed, its deformation can meet the travel requirement of touching the micro switch 31. The button 10 is hard plastic (overmolded in soft rubber), and can be processed by spray painting and engraving.

[0025] Overall, the switch of the utility model has a simple structure, is easy and quick to assemble, and has both small size and waterproofness.

Claims

1. A car trunk switch, characterized in that: include: A housing component, the housing component is formed by overmolding, and the housing component comprises: a housing; a button, the button comprises a pressing portion and an extending portion, and the button is installed from the top of the housing; A circuit board having a micro switch thereon; and The slider is installed from the bottom of the shell, the circuit board is fixed at the bottom of the slider, the micro switch is located in the slider, the extension is inserted from the top of the slider and close to the micro switch on the circuit board, and when the button is pressed, the shell component will be deformed so that the extension can trigger the micro switch.

2. The automobile trunk switch according to claim 1, characterized in that: The button is made of hard plastic and is encapsulated in soft plastic.

3. The automobile trunk switch according to claim 1, characterized in that: The shell assembly also includes an inner shell nested in the outer shell, the inner shell has a circle of protruding limiting parts on the side surface, the outer shell has a circle of bosses near the top, the part of the inner shell below the limiting part is placed in the outer shell, and the part above the limiting part is exposed to the outside, the limiting part is located on the boss, and there is no gap between the two, the button is installed from the top of the inner shell, so that the extension part is inserted into the slider, and the lower surface of the pressing part is seamlessly engaged with the top of the inner shell.

4. The automobile trunk switch according to claim 3, characterized in that: The distance between the inner boss of the shell and the top is consistent with the thickness of the limiting portion.

5. The automobile trunk switch according to claim 1, characterized in that: After the sliding block is installed in the shell, it forms a cavity for accommodating the circuit board with the bottom of the shell.

6. The automobile trunk switch according to claim 5, characterized in that: The bottom of the slider is provided with a flange, and the circuit board is fixed on the flange.

7. The automobile trunk switch according to claim 5, characterized in that: After the circuit board is fixed on the slider, glue is injected into the cavity for sealing.

8. The automobile trunk switch according to claim 6, characterized in that: The flange is provided with a card slot and a screw hole for fixing the circuit board, and the inner wall of the shell is provided with a protrusion matching the card slot. During assembly, the button is pressed by fingers to align the card slot of the slider with the protrusion on the shell and press it in until it cannot be pressed any further.

9. The automobile trunk switch according to claim 8, characterized in that: The slider is provided with a guide rib, and the extension portion of the button is provided with a guide surface matching the rib. When the slider is pressed in, the rib is aligned with the guide surface.

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