Dustproof and waterproof switch structure
By integrating the sealing layer with the waterproof sleeve into a single design, the waterproof and dustproof problem of motorcycle handlebar switches is solved, simplifying the structure, improving protective performance and stability, and reducing production costs.
Patent Information
- Application Number
- CN202520122905.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing motorcycle handlebar switches have weaknesses in terms of waterproofing and dustproofing, especially in harsh environments where water or dust can easily get in, affecting normal operation and potentially causing safety issues. In addition, their complex structure and numerous parts increase production costs.
The design incorporates an integrated sealing layer and waterproof sleeve, covering the front and back of the circuit board and securing it with fasteners. The buttons and sleeve are integrally molded with soft rubber, simplifying the structure and reducing the number of parts.
It achieves excellent dust and water resistance, simplifies the structure, reduces production costs, and improves the pressing feel and stability.
Smart Images
Figure CN223797293U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of switch technology, specifically relating to a dustproof and waterproof switch structure. Background Technology
[0002] Motorcycle handlebar switches are an indispensable component of the motorcycle control system. Their main function is to allow riders to conveniently control various devices and functions during riding, such as lights, horns, and turn signals. These switches are generally installed on the handlebars to ensure that riders can operate them quickly while riding, thereby enhancing riding safety and comfort. Most existing handlebar switch structures use a simple method of placing a waterproof pad on the circuit board for protection. However, this design has shortcomings in practical applications, especially in terms of waterproof and dustproof performance. In some harsh environmental conditions, such as rainy days, dusty roads, or muddy off-road terrain, the waterproof pad often fails to effectively prevent the intrusion of water and dust. This can easily lead to water or dust accumulation inside the switch, seriously affecting its normal operation and even potentially causing safety problems such as short circuits. Furthermore, the buttons controlling the microswitches in existing handlebar switches are usually made of plastic, and the large number of components not only increases production and assembly costs but also affects the overall structural stability. Utility Model Content
[0003] Therefore, the purpose of this utility model is to provide a switch structure with excellent dustproof and waterproof performance.
[0004] To achieve the above objectives, the present invention provides the following technical solution:
[0005] This utility model provides a dustproof and waterproof switch structure, including a housing with a mounting cavity and a circuit board fixed in the mounting cavity; a micro switch is mounted on the front of the circuit board; a waterproof sleeve is also provided in the mounting cavity, the mounting cavity has a limiting plane opposite to the front of the circuit board, the waterproof sleeve covers the front of the circuit board and has a sleeve portion to accommodate the micro switch, an operating hole is provided through the limiting plane at a position corresponding to the sleeve portion, a button is provided on the sleeve portion to protrude into the operating hole, the circuit board is fixed in the mounting cavity by a fastener, the limiting plane cooperates with the front of the circuit board to press the waterproof sleeve tightly; a sealing layer is covered on the back of the circuit board inside the mounting cavity; the waterproof sleeve, sleeve portion and button are integrally molded from soft rubber.
[0006] Preferably, the waterproof sleeve has a rim that surrounds and wraps around the outer periphery of the circuit board.
[0007] Preferably, the fixing component includes a fixing screw, the limiting plane is provided with a fixing post protruding towards the circuit board, the waterproof sleeve is provided with a ring sleeve portion for the fixing post to pass through and to form a sleeve with the fixing post, the circuit board is provided with a through hole for the fixing post and the ring sleeve portion to pass through, and the fixing screw is screwed into the fixing post and pressed against the back of the circuit board.
[0008] Preferably, the waterproof sleeve is made of rubber or silicone.
[0009] Preferably, the button is a solid cylindrical structure, and the shape of the outer peripheral surface of the button matches the shape of the inner peripheral surface of the operating hole.
[0010] Preferably, the mounting cavity has an opening that is opposite to the limiting plane.
[0011] Preferably, the edge of the housing has an outwardly protruding convex plate near the operating hole, and the surface of the convex plate has a switch mark.
[0012] The positive effects of this utility model are as follows: By optimizing the switch structure, the front and back of the circuit board are effectively wrapped by the combination of the sealing layer and the waterproof sleeve, thereby ensuring good dustproof and waterproof performance; in addition, the button, the sleeve and the waterproof sleeve are made of soft rubber in one piece, so there is no need to configure a separate button, which can reduce the number of parts, simplify the structure, facilitate assembly, and provide a good pressing feel. Attached Figure Description
[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art are briefly introduced below. Similar elements or parts in the drawings are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.
[0014] Figure 1 This is a three-dimensional schematic diagram of the switch structure in this utility model;
[0015] Figure 2 This is a top view of the switch structure in this utility model;
[0016] Figure 3 For along Figure 2 A sectional view cut along line AA.
[0017] Figure 4 For along Figure 2 A sectional view cut along the middle BB line;
[0018] Figure 5 This is an exploded view of the switch structure in this utility model;
[0019] Figure 6 This is a schematic diagram of the shell structure in this utility model.
[0020] The reference numerals in the figure are as follows: 1. Housing; 10. Mounting cavity; 11. Limiting plane; 12. Operating hole; 13. Fixing post; 14. Opening; 15. Protruding plate; 16. Switch mark; 2. Circuit board; 21. Through hole; 3. Micro switch; 4. Waterproof sleeve; 40. Edge band; 41. Sheath; 42. Button; 43. Ring sleeve; 5. Fixing screw. Detailed Implementation
[0021] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.
[0022] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.
[0023] like Figures 1 to 6 As shown, the dustproof and waterproof switch structure of this utility model embodiment includes a housing 1 with a mounting cavity 10 and a circuit board 2 fixed in the mounting cavity 10; a micro switch 3 is mounted on the front of the circuit board 2; a waterproof sleeve 4 is also provided in the mounting cavity 10, the mounting cavity 10 has a limiting plane 11 opposite to the front of the circuit board 2, the waterproof sleeve 4 covers the front of the circuit board 2 and has a sleeve portion 41, the sleeve portion 41 is used to accommodate the micro switch 3; an operating hole 12 is provided through the limiting plane 11 at a position corresponding to the sleeve portion 41, and a button 42 protruding into the operating hole 12 is provided on the sleeve portion 41, and the micro switch 3 is activated by pressing the button 42 during use. When switch 3 is triggered, the circuit board 2 is fixed in the mounting cavity 10 by a fastener. The limiting plane 11 mates with the front of the circuit board 2 to press the waterproof sleeve 4 tightly. The mounting cavity 10 contains a sealing layer covering the back of the circuit board 2, which is formed by the injection and curing of sealant. In this embodiment, the sealing layer and the waterproof sleeve 4 effectively wrap the front and back of the circuit board 2, ensuring good dustproof and waterproof performance. Furthermore, the button 42, the sleeve 41, and the waterproof sleeve 4 are integrally molded from soft rubber, eliminating the need for a separate button, reducing the number of parts, simplifying the structure, and facilitating assembly. The soft rubber button 42 also provides a good tactile feel. Preferably, the soft rubber material is made of rubber or silicone with good elasticity.
[0024] Combination Figure 3 and Figure 4As shown, in order to enhance the wrapping effect of the waterproof sleeve 4 on the circuit board 2 and improve the protective performance, the waterproof sleeve 4 is provided to surround and wrap around the outer periphery of the circuit board 2. During the assembly process, the waterproof sleeve 4 can be first installed on the circuit board 2 to form an assembly, and then the assembly can be installed into the housing 1.
[0025] like Figure 4 As shown, in order to facilitate reliable fixation of the circuit board 2, the fixing component in this embodiment includes a fixing screw 5, a fixing post 13 protruding towards the circuit board 2 on the limiting plane 11, a ring sleeve 43 for the fixing post 13 to pass through and to form a sleeve with the fixing post 13 on the waterproof sleeve 4, a through hole 21 for the fixing post 13 and the ring sleeve 43 to pass through on the circuit board 2, the fixing screw 5 is screwed to the fixing post 13 and pressed against the back of the circuit board 2; and the ring sleeve 43 forms a seal between the through hole 21 and the fixing post 13 to prevent water from entering through the gap between the ring sleeve 43 and the through hole 21.
[0026] like Figure 3 As shown, in order to enable the button 42 to effectively press the micro switch 3 when pressed, the button 42 is preferably designed as a solid column structure. The solid column design can provide better stability and strength, ensuring that it is not easily deformed when pressed, thereby reliably transmitting pressure to the micro switch 3.
[0027] Combination Figure 3 and Figure 4 The mounting cavity 10 has an opening 14, which is opposite to the limiting plane 11. The opening 14 facilitates the insertion of the circuit board 2 into the mounting cavity 10. Moreover, when applying glue into the mounting cavity 10, the opening 14 provides a spacious working space, allowing the operator to more easily control the flow and filling of the glue, ensuring that the glue is evenly covered on the back of the circuit board 2, thereby ensuring the sealing and protection effect of the circuit board 2.
[0028] Combination Figures 1 to 6 As shown, the edge of the housing 1 has an outwardly protruding convex plate 15 near the operation hole 12. The surface of the convex plate 15 is provided with a switch mark 16. The presence of the convex plate 15 can expand the size of the corresponding part of the housing 1, thereby facilitating the setting of the switch mark 16. The switch mark 16 makes it easy for the driver to identify the function of the corresponding micro switch 3.
[0029] For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, these obvious variations or modifications derived from the essential spirit of this invention still fall within the protection scope of this utility model.
Claims
1. A dustproof and waterproof switch structure comprising a housing (1) having a mounting cavity (10) and a circuit board (2) fixed in the mounting cavity (10); the circuit board (2) is provided with a micro switch (3) on the front surface; characterized in that: The waterproof rubber sleeve (4) is arranged in the mounting cavity (10), the mounting cavity (10) has a limiting plane (11) opposite to the front surface of the circuit board (2), the waterproof rubber sleeve (4) wraps the front surface of the circuit board (2) and has a sleeve part (41) for accommodating the micro switch (3), the limiting plane (11) is provided with an operation hole (12) at a position corresponding to the sleeve part (41), the sleeve part (41) is provided with a button (42) protruding into the operation hole (12), the circuit board (2) is fixed in the mounting cavity (10) by a fixing member, and the limiting plane (11) cooperates with the front surface of the circuit board (2) to press the waterproof rubber sleeve (4); the circuit board (2) is covered with a sealing glue layer on the back surface in the mounting cavity (10); the waterproof rubber sleeve (4), the sleeve part (41) and the button (42) are integrally formed by soft glue.
2. The dustproof and waterproof switch structure according to claim 1, characterized by: The waterproof rubber sleeve (4) has a wrapping part (40) around the outer periphery of the circuit board (2).
3. The dustproof and waterproof switch structure according to claim 1, characterized in that: The fixing member comprises a fixing screw (5), the limiting plane (11) is provided with a fixing column (13) protruding towards the circuit board (2), the waterproof rubber sleeve (4) is provided with a ring sleeve part (43) for sleeving the fixing column (13), the circuit board (2) is provided with a through hole (21) for the fixing column (13) and the ring sleeve part (43) to pass through, and the fixing screw (5) is screwed with the fixing column (13) and is pressed against the back surface of the circuit board (2).
4. The dust-proof and water-proof switch structure according to claim 1, characterized in that: The waterproof rubber sleeve (4) is made of rubber or silicone.
5. The dust and water resistant switch structure according to claim 1, characterized by: The button (42) is a solid column structure.
6. The dust and water resistant switch structure according to claim 1, characterized by: The mounting cavity (10) has an opening (14) opposite to the limiting plane (11).
7. The dust and water resistant switch structure according to claim 1, characterized by: The edge of the shell (1) is provided with a protruding plate part (15) near the operation hole (12), and the surface of the protruding plate part (15) is provided with a switch mark (16).