A waterproof switch

Abstract

The utility model provides a waterproof switch, including an outer shell, a bracket, a circuit board, a switch unit, and a sealing gasket. The outer shell is hollow inside, and the upper end surface is arranged at a first through hole connected to the inside; the bracket is arranged inside the outer shell, and a second through hole is arranged corresponding to the first through hole; the circuit board is arranged inside the outer shell and located below the bracket; the switch unit is arranged on the circuit board and electrically connected to the circuit board, and the switch unit is arranged corresponding to the first through hole and the second through hole; the sealing gasket is pressed with the outer shell through the bracket, and covers the switch unit. The waterproof switch of the utility model completely covers the switch unit by setting a sealing gasket, and is pressed with the outer shell through the bracket. After pressing, the inside and outside of the outer shell are isolated and sealed under the action of the sealing gasket. The overall structure is simple, the assembly process requirements are low, and it is suitable for mass production.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof switches, in particular to a waterproof switch. Background Art

[0002] There are two common waterproof switches on the market:

[0003] One is that the product shell is sealed with the shell, and the switch uses a waterproof integrated switch element. This type of waterproof switch has a high cost of waterproof integrated switch elements, thus raising the manufacturing cost of the whole machine;

[0004] Another method is to use liquid glue to bond the shell and the switch to achieve waterproof function. This method is extremely difficult to manufacture, has high requirements on the production process, and is not conducive to mass production.

[0005] In view of this, the inventor specially designed a waterproof switch, and this case was thus generated. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose a waterproof switch, which completely covers the switch unit by setting a sealing gasket, and is pressed with the outer shell through a bracket. After the pressing, the inside and the outside of the outer shell are isolated and sealed under the action of the sealing gasket. The overall structure is simple, the assembly process requirements are low, and it is suitable for mass production, which overcomes the shortcomings of the current common waterproof switches.

[0007] A waterproof switch provided by the utility model includes:

[0008] An outer shell, wherein the interior of the outer shell is hollow, and the upper end surface is arranged at a first through hole communicating with the interior;

[0009] A bracket, wherein the bracket is disposed inside the outer shell and a second through hole is disposed corresponding to the first through hole;

[0010] A circuit board, the circuit board is arranged inside the outer shell and below the bracket;

[0011] A switch unit, the switch unit is disposed on the circuit board and electrically connected to the circuit board, and the switch unit is disposed corresponding to the first through hole and the second through hole;

[0012] A sealing gasket is pressed together with the outer shell through the bracket and covers the switch unit.

[0013] The waterproof switch of the utility model completely covers the switch unit by arranging a sealing gasket, and is pressed together with the outer shell through a bracket. After the pressing, the inside and the outside of the outer shell are isolated and sealed under the action of the sealing gasket. The overall structure is simple, the assembly process requirements are low, and it is suitable for mass production.

[0014] In some embodiments of the present invention, the waterproof switch further includes a switch key for controlling the switch unit to be turned on and off.

[0015] In some embodiments of the utility model, the switch unit adopts a toggle switch, and the upper end of the toggle switch has a toggle arm for realizing the opening and closing of the switch unit. The switch key is arranged corresponding to the toggle arm and is slidably connected to the outer shell.

[0016] In some embodiments of the utility model, a toggle groove for embedding the toggle arm is provided at the bottom of the switch key, and buckles are provided on both sides below, and the buckles pass through the first through hole and hook the inner side of the outer shell.

[0017] In some embodiments of the present invention, the outer shell includes a lower shell and an upper shell that cooperate with each other, and the first through hole is arranged on the upper shell.

[0018] In some embodiments of the utility model, the buckle of the switch key hooks the inner side of the upper shell, and the upper end surface of the upper shell is also provided with a slide groove for sliding the switch key; the buckle is L-shaped as a whole, and two are symmetrically arranged, and the hooking part of the buckle is arranged outward to facilitate hooking the upper shell.

[0019] In some embodiments of the present invention, the waterproof switch further includes a decorative cover disposed on the upper surface of the housing.

[0020] In some embodiments of the present invention, a third through hole is provided above the decorative cover to prevent the switch from sliding.

[0021] In some embodiments of the utility model, the sealing gasket includes an annular sealing portion arranged on the outside and located between the bracket and the outer shell, and a movable portion located on the inside of the annular sealing portion and can be opened and closed with the switch unit, and an annular connecting portion is arranged between the movable portion and the annular sealing portion to enable the movable portion to move inside the annular sealing portion.

[0022] In some embodiments of the present invention, the sealing gasket is a rubber piece; the annular sealing portion, the annular connecting portion and the movable portion are an integrated structure and are integrally formed by a rubber mold.

[0023] In some embodiments of the utility model, the upper end surface of the bracket is provided with a positioning groove for embedding the annular sealing portion, the lower end surface of the annular sealing portion is provided with an annular groove, and the upper end surface is provided with an annular step.

[0024] In some embodiments of the present invention, a limiting step for preventing the annular sealing portion from moving is provided on the annular sealing portion, and a limiting groove for embedding the limiting step is provided on the bracket.

[0025] In some embodiments of the present invention, the movable portion includes a covering portion for covering the main body portion below the toggle switch and a driven portion provided on a toggle arm of the covering portion.

[0026] In some embodiments of the present invention, the annular connecting portion includes an annular horizontal portion and an annular elastic portion which is arranged inside the annular horizontal portion and is U-shaped. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0028] in:

[0029] Figure 1 It is a structural schematic diagram of the utility model waterproof switch;

[0030] Figure 2 It is an exploded view of the waterproof switch of the utility model;

[0031] Figure 3 It is a partial exploded view of the waterproof switch of the utility model;

[0032] Figure 4 It is a partial cross-sectional view of the waterproof switch of the utility model;

[0033] Figure 5 It is a structural schematic diagram of the switch key of the utility model;

[0034] Figure 6 This is a schematic diagram of the structure of the sealing gasket of the utility model. Figure 1 ;

[0035] Figure 7 This is a schematic diagram of the structure of the sealing gasket of the utility model. Figure 2 ;

[0036] Figure 8 It is a cross-sectional view of the sealing gasket of the utility model.

[0037] Description of labels:

[0038] 10. Outer shell; 11. Lower shell; 12. Upper shell; 121. First through hole, 122. Slide groove; 20. Bracket; 21. Second through hole; 22. Positioning groove; 23. Limiting groove; 30. Circuit board; 40. Switch unit; 41. Toggle arm; 50. Sealing gasket; 51. Annular sealing part; 511. Annular groove; 512. Annular step; 52. Movable part; 521. Covering part; 522. Driven part; 53. Annular connecting part; 531. Annular horizontal part; 532. Annular elastic part; 54. Limiting step; 60. Switch; 61. Toggle groove; 62. Buckle; 70. Decorative cover; 71. Third through hole. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] See also Figures 1 to 8 , is a waterproof switch as the best embodiment of the utility model, including an outer shell 10, a bracket 20, a circuit board 30, a switch unit 40, and a sealing gasket 50. The outer shell 10 is hollow inside, and the upper end surface is arranged at a first through hole 121 connected to the inside; the bracket 20 is arranged inside the outer shell 10, and a second through hole 21 is arranged corresponding to the first through hole 121; the circuit board 30 is arranged inside the outer shell 10 and is located below the bracket 20; the switch unit 40 is arranged on the circuit board 30 and is electrically connected to the circuit board 30, and the switch unit 40 is arranged corresponding to the first through hole 121 and the second through hole 21; the sealing gasket 50 is pressed with the outer shell 10 through the bracket 20 and covers the switch unit 40. The waterproof switch of the utility model completely covers the switch unit 40 by setting a sealing gasket 50, and is pressed together with the outer shell 10 through the bracket 20. After the pressing, the inside and the outside of the outer shell 10 are isolated and sealed under the action of the sealing gasket 50. The overall structure is simple, the assembly process requirements are low, and it is suitable for mass production. The waterproof switch of the utility model can be pulled back and forth within a set stroke, and the parts used are low in cost, simple to manufacture, and have low assembly process requirements, which is suitable for mass production.

[0041] The waterproof switch also includes a switch key 60 for controlling the opening and closing of the switch unit 40; the switch unit 40 in this embodiment only needs to adopt an ordinary pull switch element that does not have a waterproof function, with low production cost and short production cycle. Specifically, the switch unit 40 adopts a toggle switch, and the upper end of the toggle switch has a toggle arm 41 for realizing the opening and closing of the switch unit 40. The switch key 60 is arranged corresponding to the toggle arm 41 and is slidably connected to the outer shell 10.

[0042] A toggle groove 61 for embedding the toggle arm 41 is provided at the bottom of the switch key 60, and buckles 62 are provided on both sides below. The buckles 62 pass through the first through hole 121 and hook the inner side of the outer shell 10. The buckles 62 are used to limit the switch key 60 and prevent it from falling out of the outer shell 10. At the same time, the switch key 60 can be ensured to move stably on the outer shell 10.

[0043] Please refer to Figure 4 The outer shell 10 includes a lower shell 11 and an upper shell 12 that cooperate with each other, and a first through hole 121 is provided on the upper shell 12. The upper shell 12 and the lower shell 11 form a cavity, and the cavity encloses the switch key 60, the bracket 20, the circuit board 30, etc. The buckle 62 of the switch key 60 hooks the inner side of the upper shell 12, and the upper end surface of the upper shell 12 is also provided with a slide groove 122 for the switch key 60 to slide; the buckle 62 is L-shaped as a whole, and two are symmetrically provided, and the hooking part of the buckle 62 is provided outwardly to facilitate hooking the upper shell 12. The bracket 20 and the circuit board 30 are both fixedly provided on the lower shell 11, and a plurality of first support columns for supporting the bracket 20 are provided at the bottom of the lower shell 11, and a plurality of second support columns for supporting the circuit board 30 are provided, and the first bolt passes through the bracket 20 and is screwed to the first support column, and the second bolt passes through the circuit board 30 and is screwed to the second support column.

[0044] Please refer to Figure 2 The waterproof switch also includes a decorative cover 70 disposed on the upper surface of the housing, which mainly serves as a decorative surface; a third through hole 71 is disposed above the decorative cover 70 for avoiding the sliding of the switch key 60. The decorative cover 70 and the waterproof functional part do not overlap in function, effectively preventing poor waterproofing caused by other irrelevant reasons.

[0045] Please refer to Figures 6 to 8The sealing gasket 50 includes an annular sealing portion 51 disposed on the outside and located between the bracket 20 and the outer shell 10, a movable portion 52 located inside the annular sealing portion 51 and can be opened and closed with the switch unit 40, and an annular connecting portion 53 is disposed between the movable portion 52 and the annular sealing portion 51 so that the movable portion 52 can move inside the annular sealing portion 51. The sealing gasket 50 is made of a soft elastic material, such as rubber; the annular sealing portion 51, the annular connecting portion 53 and the movable portion 52 are an integrated structure and are integrally formed by a rubber mold. After the annular sealing portion 51 is assembled between the bracket 20 and the upper shell 12, it will collapse and generate a continuous pressing force, which plays a role in space isolation, and the isolation point plays a waterproof role. The sealing gasket 50 of the utility model will cover the switch unit 40 and move with the switch unit 40 through the movable part 52, and at the same time, the annular sealing part 51 is used to achieve a sealing effect. Therefore, the movable part 52 is used in conjunction with the annular sealing part 51 to achieve a sealing gasket 50 with high reliability, high sealing performance, and high waterproof level. Furthermore, the sealing gasket 50 of the utility model is low in cost and easy to manufacture.

[0046] The annular sealing portion 51 is provided with a limiting step 54 for preventing the annular sealing portion 51 from moving, and the bracket 20 is provided with a limiting groove 23 for the limiting step 54 to be embedded in. The limiting step 54 is provided as required, for example, it can be provided on the outer side wall of the annular sealing portion 51, and the annular sealing portion 51, the annular connecting portion 53, the movable portion 52 and the limiting step 54 are an integrated structure.

[0047] The movable part 52 moves in the horizontal direction as the switch unit 40 is opened and closed. The driven part 522 of the movable part 52 fits in the toggle groove 61 and completely covers the switch unit 40 during the movement. At the same time, during the movement, under the action of the limiting step 54, the annular sealing part 51 does not produce a large deformation and movement, so as to ensure the waterproof effect of the sealing gasket 50.

[0048] Please refer to Figures 6 to 8 The upper end surface of the bracket 20 is provided with a positioning groove 22 for the annular sealing part 51 to be embedded, the lower end surface of the annular sealing part 51 is provided with an annular groove 511, and the upper end surface is provided with an annular step 512. By providing the annular groove 511, the annular sealing part 51 can have a certain amount of compression when being squeezed, increasing the fitting area at the bottom of the annular sealing part 51, and achieving a good sealing and waterproofing effect. At the same time, the upper end surface of the annular sealing part 51 is provided with an annular step 512. When squeezed, the annular step 512 cooperates with the annular groove 511, so that the sealing effect of the upper and lower end surfaces of the annular sealing part 51 is better.

[0049] Please refer to Figures 6 to 8The movable part 52 includes a covering part 521 for covering the main body part below the toggle switch (excluding the toggle arm 41) and a driven part 522 arranged on the covering part 521 and the toggle arm 41; the driven part 522 covers the toggle arm 41 of the toggle switch and the inner wall of the driven part 522 is as close to the outer wall of the toggle arm 41 as possible, so that the key can better drive the toggle arm 41.

[0050] Please refer to Figures 6 to 8 The annular connecting portion 53 includes an annular horizontal portion 531 and an annular elastic portion 532 which is arranged on the inner side of the annular horizontal portion 531 and is in a U-shape. Specifically, the outer wall of the annular horizontal portion 531 is located on the inner wall of the annular sealing portion 51. One side of the annular elastic portion 532 is connected to the annular horizontal portion 531, and the other side is connected to the movable portion 52. The annular horizontal portion 531 is matched with the annular elastic portion 532 to provide the required moving stroke of the movable portion 52. In particular, when the sealing gasket 50 is matched with a toggle switch, a limiting step 54 is required to be provided to prevent the displacement of the annular sealing portion 51 and reduce the waterproof effect.

[0051] To sum up, the waterproof switch of the utility model completely covers the switch unit by setting a sealing gasket, and is pressed together with the outer shell through a bracket. After pressing, the inside and outside of the outer shell are isolated and sealed under the action of the sealing gasket. The overall structure is simple, the assembly process requirements are low, and it is suitable for mass production; and the waterproof switch of the utility model can be pulled back and forth within the set stroke, and the parts used are low in cost, simple to manufacture, and have low assembly process requirements, which is suitable for mass production.

[0052] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A waterproof switch, characterized in that: include: An outer shell, wherein the interior of the outer shell is hollow, and the upper end surface is arranged at a first through hole communicating with the interior; A bracket, wherein the bracket is disposed inside the outer shell and a second through hole is disposed corresponding to the first through hole; A circuit board, the circuit board is arranged inside the outer shell and below the bracket; A switch unit, the switch unit is disposed on the circuit board and electrically connected to the circuit board, and the switch unit is disposed corresponding to the first through hole and the second through hole; A sealing gasket is pressed together with the outer shell through the bracket and covers the switch unit.

2. A waterproof switch according to claim 1, characterized in that: The waterproof switch also includes a switch key for controlling the switch unit to be turned on and off.

3. A waterproof switch according to claim 2, characterized in that: The switch unit adopts a toggle switch, and the upper end of the toggle switch has a toggle arm for realizing the opening and closing of the switch unit. The switch key is arranged corresponding to the toggle arm and is slidably connected with the outer shell.

4. A waterproof switch according to claim 3, characterized in that: The bottom of the switch key is provided with a toggle groove for the toggle arm to be embedded, and buckles are provided on both sides below, and the buckles pass through the first through hole and hook the inner side of the outer shell.

5. A waterproof switch according to claim 4, characterized in that: The outer shell includes a lower shell and an upper shell that match each other, and the first through hole is arranged on the upper shell.

6. A waterproof switch according to claim 1, characterized in that: The waterproof switch also includes a decorative cover arranged on the upper surface of the shell.

7. A waterproof switch according to claim 1, characterized in that: The sealing gasket includes an annular sealing portion arranged on the outside and located between the bracket and the outer shell, and a movable portion located on the inside of the annular sealing portion and can be opened and closed with the switch unit, and an annular connecting portion is arranged between the movable portion and the annular sealing portion to enable the movable portion to move inside the annular sealing portion.

8. A waterproof switch according to claim 7, characterized in that: The upper end surface of the bracket is provided with a positioning groove for embedding the annular sealing part, the lower end surface of the annular sealing part is provided with an annular groove, and the upper end surface is provided with an annular step.

9. A waterproof switch according to claim 7, characterized in that: The movable part includes a covering part for covering the main body part below the toggle switch and a driven part arranged on the toggle arm of the covering part.

10. A waterproof switch according to claim 7, characterized in that: The annular connecting portion includes an annular horizontal portion and an annular elastic portion which is arranged inside the annular horizontal portion and is in a U-shape.

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