Waterproof switch

Abstract

The utility model belongs to the technical field of switches, and particularly relates to a waterproof switch, which comprises a base, a circuit board and a protective cover, the circuit board and the protective cover are arranged in the base, the protective cover is in threaded connection with the base, keys are arranged on the base, and a clamping cover is fixed on the base. A circuit board is arranged on the base, a protective cover is arranged on the circuit board, a wiring harness body is arranged at one end, far away from the base, of the protective cover, the wiring harness body penetrates through the protective cover and is connected to the circuit board, a wiring harness boss is arranged on the wiring harness body, a limiting ring groove is axially formed in the wiring harness boss, the protective cover is embedded in the limiting ring groove, and the wiring harness boss is in interference connection with the protective cover. The waterproof switch has the effect that the sealing performance between the wire harness and the switch is improved, so that the waterproof performance of the switch is improved.

Description

Technical Field

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

[0002] As the name implies, waterproof switches are switches that can be operated with wet hands. This brings great safety to many home users who can use electricity safely in relatively humid places such as outdoors.

[0003] In the prior art, there is a waterproof switch with publication number CN203218120U, which includes a waterproof switch housing, in which a moving reed, a normally open static contact, a normally closed static contact and a connecting piece are arranged, a control block penetrating the waterproof switch housing is linked to the moving reed, the normally open static contact, the normally closed static contact and the connecting piece extend from the waterproof switch housing as a normally open terminal, a normally closed terminal and a connecting terminal respectively, the normally open terminal, the normally closed terminal and the connecting terminal extend from the same side of the waterproof switch housing, and a terminal waterproof cavity is arranged on the side of the waterproof switch housing from which the normally open terminal, the normally closed terminal and the connecting terminal extend.

[0004] Although it can achieve the effect of waterproofing from the outside, the waterproofing effect of the wiring harness body end is poor, and the external humid airflow can enter the inside of the switch from the gap between the wiring harness body end and the switch, causing internal damage. Utility Model Content

[0005] The purpose of the utility model is to provide a waterproof switch to solve the technical problem that external humid airflow can enter the inside of the switch from the gap between the wiring harness body end and the switch, causing internal damage, so as to improve the sealing between the wiring harness body end and the switch, thereby improving the waterproof performance of the switch.

[0006] In order to solve the above technical problems, the utility model provides a waterproof switch, comprising:

[0007] A base, a circuit board and a protective cover arranged in the base, wherein the protective cover and the base are threadedly connected, a button is arranged on the base, and the card cover is fixed to the base;

[0008] A wiring harness body is arranged at one end of the protective cover away from the base, the wiring harness body passes through the protective cover and is connected to the circuit board, a wiring harness boss is arranged on the wiring harness body, a limiting ring groove is axially opened on the wiring harness boss, the limiting ring groove is for the protective cover to be embedded, and the wiring harness boss and the protective cover are interference connected.

[0009] Furthermore, the harness boss ring is provided with an outer boss, and the outer boss abuts against the outer side of the hole of the protective cover.

[0010] Furthermore, the harness boss ring is provided with an inner-hole boss, and the inner-hole boss abuts against the inner side of the hole of the protective cover.

[0011] Furthermore, the harness boss is protruded with an alignment protrusion, the protective cover is recessed with an alignment groove at the hole, and the alignment protrusion is embedded in the alignment groove.

[0012] Furthermore, the limiting ring groove is provided with a sealing ring, and the sealing ring is interference-fitted with the hole on the protective cover, thereby isolating the internal environment of the protective cover from the external environment at the wiring harness.

[0013] Furthermore, a rubber sleeve is arranged in the base, and the rubber sleeve is sleeved on the circuit board.

[0014] Furthermore, a mounting hole is provided on the rubber sleeve so as to be fixed between the base and the protective cover through the mounting hole.

[0015] The beneficial effects of the utility model are:

[0016] 1. The gap between the protective cover and the harness boss is reduced through interference connection, thereby improving the waterproof performance of the switch. The protective cover is embedded in the limit ring groove, and the sealing ring in the limit ring groove is interference fit with the hole of the protective cover. The waterproof performance is further improved through the interlocking structure and the interference fit of the sealing ring.

[0017] 2. The outer boss and the inner boss are used to press against both sides of the hole of the protective cover, thereby improving the sealing performance of the protective cover at the hole and improving the waterproof performance of the switch.

[0018] 3. By placing a rubber sleeve inside the base, the waterproofness of the switch can be improved.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the waterproof switch of the utility model;

[0022] Figure 2 This is a front exploded view of the waterproof switch of the utility model;

[0023] Figure 3 It is a rear exploded view of the utility model.

[0024] In the figure:

[0025] 1. Base; 11. Circuit board; 12. Protective cover; 13. Button; 14. Card cover;

[0026] 2. wiring harness body; 21. wiring harness boss; 22. limiting ring groove; 23. sealing ring;

[0027] 3. Boss outside the hole;

[0028] 4. Boss in hole;

[0029] 5. Align the bumps; 51. Align the grooves;

[0030] 6. Rubber sleeve; 61. Mounting hole. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Example:

[0033] like Figures 1 to 3 As shown, a waterproof switch includes: a base 1, a circuit board 11 and a protective cover 12 arranged in the base 1, the protective cover 12 and the base 1 are threadedly connected, a button 13 is arranged on the base 1, a card cover 14 is fixed to the base 1, and the button 13 is card-connected to the base 1.

[0034] A wiring harness body 2 is disposed at one end of the protective cover 12 away from the base 1 . The wiring harness body 2 passes through the protective cover 12 and is connected to the circuit board 11 . A cable is disposed inside the wiring harness body 2 for externally supplying power to the circuit board 11 .

[0035] Among them, a wiring harness boss 21 is provided on the wiring harness body 2, and a limiting ring groove 22 is axially opened on the wiring harness boss 21, and the limiting ring groove 22 is for the protective cover 12 to be embedded. The wiring harness boss 21 and the protective cover 12 are interference connected, so that the wiring harness boss 21 and the protective cover 12 are tightly connected, and the gap between the wiring harness boss 21 and the protective cover 12 is reduced, thereby improving the waterproofness of the switch.

[0036] In this embodiment, the harness boss 21 is provided with an outer hole boss 3, and the outer hole boss 3 abuts against the outer side of the hole of the protective cover 12. The harness boss 21 is provided with an inner hole boss 4, and the inner hole boss 4 abuts against the inner side of the hole of the protective cover 12. The outer hole boss 3 and the inner hole boss 4 abut against both sides of the hole of the protective cover 12, thereby improving the sealing performance of the protective cover 12 at the hole and improving the waterproof performance of the switch.

[0037] like Figure 3 As shown, the wiring harness boss 21 is protruding with an alignment protrusion 5, and the protective cover 12 is recessed with an alignment groove 51 at the hole, and the alignment protrusion 5 is embedded in the alignment groove 51, thereby reducing the situation where the wiring harness body 2 rotates and falls in the protective cover 12, and improving the connection stability between the wiring harness body 2 and the protective cover 12.

[0038] like Figure 2 As shown, a sealing ring 23 is provided on the limiting ring groove 22, and the sealing ring 23 and the hole on the protective cover 12 are interference-fitted, thereby isolating the inner environment of the protective cover from the outer environment at the connection between the wiring harness 2 and the protective cover 12. The outer side of the sealing ring 23 is gathered in the outward direction to form a sloped ring body, and the cross section of the sealing ring 23 is an isosceles trapezoid, so as to better clamp on the protective cover 12.

[0039] In this embodiment, a rubber sleeve 6 is disposed in the base 1, and the rubber sleeve 6 is sleeved on the circuit board 11. The rubber sleeve 6 is provided with a mounting hole 61, and is fixed between the base 1 and the protective cover 12 through the mounting hole 61. Thus, the waterproof performance of the circuit board 11 is improved.

[0040] In summary: the gap between the protective cover 12 and the harness boss 21 is reduced through interference connection, thereby improving the waterproof performance of the switch. The protective cover 12 is embedded in the limiting ring groove 22, and the sealing ring 23 in the limiting ring groove 22 is interference fit with the protective cover 12. The waterproof performance is further improved through the interlocking structure and the interference fit of the sealing ring 23. The two sides of the hole of the protective cover 12 are pressed against by the boss 3 outside the hole and the boss 4 inside the hole, thereby improving the sealing of the protective cover 12 at the hole and improving the waterproof performance of the switch. The waterproof performance inside the switch can be improved by placing a rubber sleeve 6 inside the base 1.

[0041] The various devices selected in this application are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0042] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. With the above-mentioned ideal embodiment of the present utility model as inspiration, through the above-mentioned description content, the relevant staff can make various changes and modifications without departing from the scope of the technical idea of ​​the present utility model. The technical scope of the present utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A waterproof switch, characterized in that: include: A base (1), a circuit board (11) disposed in the base (1), and a protective cover (12), wherein the protective cover (12) and the base (1) are threadedly connected, a button (13) is disposed on the base (1), and a card cover (14) is fixed to the base (1); A wiring harness body (2) is arranged at one end of the protective cover (12) away from the base (1); the wiring harness body (2) passes through the protective cover (12) and is connected to the circuit board (11); a wiring harness boss (21) is arranged on the wiring harness body (2); a limiting ring groove (22) is axially provided on the wiring harness boss (21); the limiting ring groove (22) is for the protective cover (12) to be embedded; the wiring harness boss (21) and the protective cover (12) are interference-connected.

2. A waterproof switch according to claim 1, characterized in that: The harness boss (21) is provided with an outer hole boss (3) around it, and the outer hole boss (3) abuts against the outer side of the hole of the protective cover (12).

3. A waterproof switch as claimed in claim 2, characterized in that: The harness boss (21) is provided with an inner hole boss (4) around it, and the inner hole boss (4) abuts against the inner side of the hole of the protective cover (12).

4. A waterproof switch as claimed in claim 3, characterized in that: The harness boss (21) is protruded with an alignment protrusion (5), the protective cover (12) is recessed with an alignment groove (51) at the hole, and the alignment protrusion (5) is embedded in the alignment groove (51).

5. A waterproof switch as claimed in claim 4, characterized in that: A sealing ring (23) is provided on the limiting ring groove (22), and the sealing ring (23) and the protective cover (12) are interference fit.

6. A waterproof switch as claimed in claim 5, characterized in that: A rubber sleeve (6) is arranged inside the base (1), and the rubber sleeve (6) is sleeved on the circuit board (11).

7. A waterproof switch according to claim 6, characterized in that: The rubber sleeve (6) is provided with a mounting hole (61), and the rubber sleeve (6) is fixed between the base (1) and the protective cover (12) through the mounting hole (61).

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