Structure for reducing ice breaking force after water on switch button is frozen

Abstract

The utility model discloses a structure for reducing ice breaking force after water on a switch button is frozen. Comprising a shell body, a PCB installed in the shell body, a microswitch electrically connected to the PCB, a soft rubber sealing piece arranged at the upper end of the shell body and used for being in sealing fit with an installation plate, a button arranged on the soft rubber sealing piece and an ejector rod which is in linkage with the button and used for triggering the microswitch. And an elastic piece is annularly arranged on the peripheral surface of the button. The elastic piece is arranged on the periphery of the button and used for being matched with the mounting plate, after water is accumulated in the gap between the button and the mounting plate and is frozen, the elastic piece can absorb expansion force generated after the water is frozen, and therefore ice breaking force generated after the button is frozen is reduced, and convenience is improved for users.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, in particular to a structure for reducing the ice-breaking force after water freezes on a switch button. Background Art

[0002] An external vehicle switch, as the name implies, is a switch arranged outside the vehicle and is directly exposed to the air outside the vehicle. Although there are waterproof requirements between the button and the mounting plate, the gap between the button and the mounting plate is prone to water accumulation. In cold seasons, the water accumulated between the button and the mounting plate is likely to freeze. After freezing, the button cannot be pressed, and the opening operation cannot be carried out smoothly. It is necessary to break the ice with a force greater than 100N before the button can be operated, which brings great inconvenience to users. Content of the Utility Model

[0003] The purpose of the utility model is to provide a structure for reducing the ice-breaking force after water freezes on a switch button. The utility model is provided with an elastic member on the outer periphery of the button for cooperating with the mounting plate. After the water accumulated in the gap between the button and the mounting plate freezes, the elastic member will absorb the expansion force after the water freezes, thereby reducing the ice-breaking force after the button freezes and improving the convenience for users.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A structure for reducing the ice-breaking force after water freezes on a switch button, including a housing body, a PCB board installed in the housing body, a micro switch electrically connected to the PCB board, a soft rubber seal arranged at the upper end of the housing body for forming a sealed fit with a mounting plate, a button arranged on the soft rubber seal, and a push rod that is linked with the button for triggering the micro switch; an elastic member is annularly arranged on the outer peripheral surface of the button.

[0005] By adopting the above technical solution, for the appearance clearance fit surface between the switch button and the mounting plate, by changing the design scheme and the material, an elastic member is arranged on the outer periphery of the button for cooperating with the mounting plate, that is, the gap between plastic parts is changed to the gap between the elastic member and the plastic part. After the water accumulated in the gap between the button and the mounting plate freezes, the elastic member will absorb the expansion force after the water freezes, thereby reducing the ice-breaking force after the button freezes and improving the convenience for users.

[0006] The utility model is further arranged such that the elastic member and the soft rubber seal are of an integral structure.

[0007] By adopting the above technical solution, it is convenient for processing, has high structural strength, and is conducive to assembly.

[0008] The utility model is further arranged such that at the outer edge of the elastic member corresponding to the soft rubber seal, a first sealing flange and a second sealing flange for abutting against the bottom surface of the mounting plate are further provided, and a closed-loop water retaining groove is formed between the first sealing flange and the second sealing flange.

[0009] By adopting the above technical solution, setting the water retaining groove can significantly improve the sealing effect between the switch button and the mounting plate, and prevent external water from entering the switch to cause a short circuit.

[0010] The present utility model is further configured such that a sealing rib for sealing cooperation with the bottom surface of the mounting plate is further provided at the upper end of the second sealing flange.

[0011] By adopting the above technical solution, the sealing effect between the switch button and the mounting plate can be further improved, and the waterproof performance is better.

[0012] The present utility model is further configured such that a mounting groove is provided at the outer edge of the upper end of the housing body, and the soft rubber sealing member is sleeved on the mounting groove.

[0013] By adopting the above technical solution, the installation structure is simple and reliable, and the disassembly and assembly are very convenient.

[0014] The present utility model is further configured such that a plurality of clamping holes are provided at a position corresponding to the mounting groove inside the side portion of the housing body, and a plurality of clamping protrusions adapted to the clamping holes are provided on the soft rubber sealing member.

[0015] By adopting the above technical solution, when the clamping protrusions on the soft rubber sealing member are inserted and matched with the clamping holes on the housing body, it can play a role in fixing and preventing the soft rubber sealing member from falling off, and ensure the firmness of the installation of the soft rubber sealing member.

[0016] The present utility model is further configured such that positioning grooves are provided at positions corresponding to the clamping holes on the end surface of the mounting groove, and a plurality of positioning protrusions adapted to the positioning grooves are provided on the soft rubber sealing member.

[0017] By adopting the above technical solution, it plays a role of pre-positioning during installation, facilitating the alignment of the clamping protrusions on the soft rubber sealing member with the clamping holes on the housing body, and being more conducive to the installation operation of the soft rubber sealing member.

[0018] The present utility model is further configured such that at least two strengthening arms extending vertically are further provided at the side portion of the soft rubber sealing member, and positioning recesses adapted to the strengthening arms are provided at the side portion of the housing body.

[0019] By adopting the above technical solution, the contact area between the soft rubber sealing member and the housing body is increased, thereby further improving the firmness of the installation of the soft rubber sealing member. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural view of the whole of the present utility model;

[0021] Figure 2 is a schematic internal structural view of the present utility model;

[0022] Figure 3 This is a schematic structural view of the first perspective of the soft rubber seal of the present utility model;

[0023] Figure 4 This is a schematic structural view of the second perspective of the soft rubber seal of the present utility model;

[0024] Figure 5 This is a schematic structural view of the housing body of the present utility model.

[0025] In the figure: 1, housing body; 2, PCB board; 3, micro switch; 4, soft rubber seal; 5, button; 6, ejector rod; 7, elastic member; 8, first sealing flange; 9, second sealing flange; 10, water retaining groove; 11, sealing rib; 12, mounting groove; 13, clamping hole; 14, clamping protrusion; 15, positioning groove; 16, positioning protrusion; 17, strengthening arm; 18, positioning recess. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0027] Embodiment: As shown in the attached Figures 1 to 5 A structure for reducing the ice-breaking force after the switch button freezes, including a housing body 1, a PCB board 2 installed in the housing body 1, a micro switch 3 electrically connected to the PCB board 2, a soft rubber seal 4 provided at the upper end of the housing body 1 for sealing cooperation with the mounting plate, a button 5 provided on the soft rubber seal 4, and an ejector rod 6 linked with the button 5 for triggering the micro switch 3; characterized in that: an elastic member 7 is annularly provided on the outer peripheral surface of the button 5. The appearance clearance fit surface between the switch button 5 and the mounting plate, by changing the design scheme and changing the material, by providing an elastic member 7 on the outer periphery of the button 5 for cooperation with the mounting plate, that is, changing from the clearance between plastic parts to the clearance between the elastic member 7 and plastic parts. After the clearance between the button 5 and the mounting plate accumulates water and freezes, the elastic member 7 will absorb the expansion force after the water freezes, thereby reducing the ice-breaking force of the button 5 after freezing and improving the convenience for users.

[0028] In this embodiment, the elastic member 7 and the soft rubber seal 4 are of an integral structure, that is, the elastic member 7 and the soft rubber seal 4 are made of a single soft rubber part. It is convenient to process, has high structural strength, and is conducive to assembly.

[0029] In addition, the elastic member 7 and the soft rubber member can also be designed as a split structure, that is, the elastic member 7 can be arranged between the mounting plate and the button 5.

[0030] As shown Figure 3 in the figure, a first sealing flange 8 and a second sealing flange 9 for abutting against the bottom surface of the mounting plate are further provided at the outer edge of the elastic member 7 corresponding to the soft rubber seal 4, and a closed-loop water retaining groove 10 is formed between the first sealing flange 8 and the second sealing flange 9. The provision of the water retaining groove 10 can significantly improve the sealing effect between the switch button 5 and the mounting plate, and prevent external water from entering the switch and causing a short circuit.

[0031] As shown Figure 3 in the figure, a sealing rib 11 for forming a sealing fit with the bottom surface of the mounting plate is further provided at the upper end of the second sealing flange 9, and the bottom surface of the mounting plate generally has a sealing groove that fits with the sealing rib 11. This design can further improve the sealing effect between the switch button 5 and the mounting plate, and has better waterproof performance.

[0032] As shown Figure 1 and shown Figure 5 in the figure, a mounting groove 12 is provided at the outer edge of the upper end of the housing body 1, and the soft rubber seal 4 is sleeved on the mounting groove 12. Its mounting structure is simple and reliable, and the disassembly and assembly are very convenient.

[0033] As shown Figure 4 and shown Figure 5 in the figure, a plurality of clamping holes 13 are provided at a position corresponding to the mounting groove 12 on the side of the housing body 1, and a plurality of clamping protrusions 14 that fit with the clamping holes 13 are provided on the soft rubber seal 4. The clamping protrusions 14 can be set in a cylindrical shape, and the clamping holes 13 can also be designed as circular holes. When the clamping protrusions 14 on the soft rubber seal 4 are inserted and matched with the clamping holes 13 on the housing body 1, it can play a role in fixing and preventing the soft rubber seal 4 from falling off, and ensure the firmness of the installation of the soft rubber seal 4.

[0034] As shown Figure 4 and shown Figure 5 in the figure, a positioning groove 15 is provided at a position corresponding to the clamping hole 13 on the end surface of the mounting groove 12, and the positioning groove 15 extends along the installation direction of the soft rubber seal 4. A plurality of positioning protrusions 16 that fit with the positioning groove 15 are provided on the soft rubber seal 4. Both the positioning protrusions 16 and the positioning groove 15 are in an inverted conical shape with a larger upper part and a smaller lower part. This design plays a role in pre-positioning during installation, facilitates the alignment of the clamping protrusions 14 on the soft rubber seal 4 with the clamping holes 13 on the housing body 1, and is more conducive to the installation operation of the soft rubber seal 4.

[0035] As shown Figure 4 and shown Figure 5As shown, at least two reinforcing arms 17 extending vertically are further provided on the side of the soft rubber seal 4, and a positioning recess 18 matching the reinforcing arm 17 is provided on the side of the outer shell body 1. This structure can increase the contact area between the soft rubber seal 4 and the outer shell body 1, thereby further improving the firmness of the installation of the soft rubber seal 4.

Claims

1. A structure for reducing the ice-breaking force of a switch button after water freezes, comprising a housing body (1), a PCB board (2) installed in the housing body (1), a micro switch (3) electrically connected to the PCB board (2), a soft rubber seal (4) arranged at the upper end of the housing body (1) for forming a sealing match with the mounting board, a button (5) arranged on the soft rubber seal (4), and a push rod (6) linked with the button (5) for triggering the micro switch (3); characterized in that: An elastic member (7) is provided in a ring shape on the outer peripheral surface of the button (5).

2. The ice-breaking force reducing structure of a switch button after water freezing according to claim 1, characterized in that: The elastic member (7) and the soft rubber seal (4) are of an integral structure.

3. The ice-breaking force reducing structure of a switch button after water freezing according to claim 2, wherein: At the outer edge of the elastic member (7) corresponding to the soft rubber seal (4), a first sealing flange (8) and a second sealing flange (9) for abutting against the bottom surface of the mounting plate are further provided. A closed-loop water retaining groove (10) is formed between the first sealing flange (8) and the second sealing flange (9).

4. The ice-breaking force reducing structure of a switch button after water freezing according to claim 3, characterized in that: At the upper end of the second sealing flange (9), a sealing rib (11) for forming a sealing fit with the bottom surface of the mounting plate is further provided.

5. The ice-breaking force reducing structure of a switch button after water freezing according to claim 2, characterized in that: At the outer edge of the upper end of the housing body (1), a mounting groove (12) is provided, and the soft rubber seal (4) is sleeved on the mounting groove (12).

6. The ice-breaking force reduction structure of a switch button after water freezes according to claim 5, characterized in that: At a position corresponding to the mounting groove (12) on the side of the housing body (1), a plurality of clamping holes (13) are provided, and a plurality of clamping protrusions (14) that fit with the clamping holes (13) are provided on the soft rubber seal (4).

7. The ice-breaking force reduction structure of a switch button after water freezes according to claim 6, wherein: At a position corresponding to the clamping holes (13) on the end surface of the mounting groove (12), a positioning groove (15) is provided, and a plurality of positioning protrusions (16) that fit with the positioning groove (15) are provided on the soft rubber seal (4).

8. The ice-breaking force reduction structure of a switch button after water freezes according to claim 6, characterized in that: At least two strengthening arms (17) extending vertically are further provided on the side of the soft rubber seal (4), and a positioning recess (18) that fits with the strengthening arms (17) is provided on the side of the housing body (1).

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