Waterproof switch

Abstract

The utility model relates to the technical field of switches, and discloses a waterproof switch, which comprises an encapsulation shell, an electronic switch and a wire harness. One end of the potting shell is open, the other end of the potting shell is provided with a wire harness hole for the wire harness to penetrate out, the electronic switch is potting in the potting shell through a potting adhesive, the wire harness is electrically connected with the electronic switch, and the potting adhesive seals the opening of the potting shell after being cured. The waterproof switch can prevent the switch from being exposed in water vapor or salt mist for a long time and being corroded to fail, and is suitable for electronic circuits in devices working on the sea or near the sea. The cured pouring sealant can form a protective layer of the electronic switch, so that the reliability of the electronic switch is improved, the implementation is easy, and the implementation cost is lower.

Description

Technical Field

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

[0002] Switches are indispensable components in the control of various equipment and devices. In ships, switches are exposed to the external environment for a long time and are easily corroded by water vapor and salt spray, causing failure, which affects the normal operation of the connected electronic circuits. In order to solve the above problems, it is usually necessary to design a reliable sealing structure for the switch housing, but this will also greatly increase the design cost and implementation cost of the switch. Therefore, it is necessary to design a waterproof switch that is low in cost and easy to implement. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a waterproof switch which is easy to implement, low in cost, and has high reliability.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is as follows: a waterproof switch, including a potting shell, an electronic switch and a wiring harness, one end of the potting shell is open, and the other end is provided with a wiring harness hole for the wiring harness to pass through, the electronic switch is potted in the potting shell by potting glue, the wiring harness is electrically connected to the electronic switch, and the potting glue seals the opening of the potting shell after curing.

[0005] Compared with the prior art, the utility model has the beneficial effect that the electronic switch can be potted to protect the switch body from the influence of water vapor, salt spray, etc. in the external environment. It is easy to assemble and has low implementation cost. The potting glue after curing will become a protective layer of the electronic switch, improving the poor reliability of the electronic switch.

[0006] In the above-mentioned waterproof switch, the electronic switch is a magnetic switch.

[0007] In the waterproof switch, a wire protection sleeve is provided at the wire harness hole, and the wire harness passes through the wire protection sleeve and passes out from the wire harness hole.

[0008] In the waterproof switch, the wiring harness is a two-core wiring harness, and the two wires in the two-core wiring harness are electrically connected to the two pins of the electronic switch respectively.

[0009] In the above-mentioned waterproof switch, the potting glue is a two-component silicone potting glue.

[0010] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the internal structure of a waterproof switch according to an embodiment of the utility model;

[0012] Figure 2 It is a cross-sectional view of a waterproof switch according to an embodiment of the utility model.

[0013] Description of Figure Numbers:

[0014] 100 potting shell, 200 wiring harness, 210 wires, 300 electronic switch, 400 wire sheath, 500 potting glue. DETAILED DESCRIPTION

[0015] The embodiments of the present invention are described in detail below. Figure 1 and Figure 2 The embodiment of the utility model provides a waterproof switch, including a potting shell 100, an electronic switch 300 and a wiring harness 200, wherein one end of the potting shell 100 is open so as to place the electronic switch 300 and fill the potting glue 500, and the other end of the potting shell 100 is provided with a wiring harness hole for passing the wiring harness 200. The electronic switch 300 is potted in the potting shell 100 by the potting glue 500, and after the potting glue 500 is cured, the cured potting glue 500 seals the opening of the potting shell 100 to form the bottom surface of the potting shell 100, and the wiring harness 200 is electrically connected to the electronic switch 300, and the electronic switch 300 can be connected to the control circuit of the device through the wiring harness 200. The above-mentioned waterproof switch, by using the electronic switch 300 as the control device, has no moving parts, and the potting glue 500 will not penetrate into the gap between the moving parts and the fixed parts to affect the movement of the moving parts. The potting method can be directly used to isolate the water vapor and salt spray in the environment, so as to prevent the switch from being corroded and failing due to long-term exposure to water vapor or salt spray. At the same time, the cured potting glue 500 can form a protective layer for the electronic switch 300, improve the reliability of the electronic switch 300, and increase the service life of the switch. It is understandable that the potting glue 500 should be a type of potting glue that does not absorb water or has a very low water absorption rate.

[0016] Reference Figure 1 and Figure 2In order to further improve the waterproof and moisture-proof performance of the waterproof switch, the wire harness 200 is preferably a rubber-coated wire harness, and a wire sheath 400 is preferably set at the wire harness hole. The wire harness 200 passes through the wire harness hole through the wire sheath 400, and the gap between the wire harness hole and the rubber of the wire harness 200 is filled with the wire sheath 400, while protecting the wire harness 200 from being cut by the edge of the wire harness hole. During installation, the wire sheath 400 is first put on the wire harness hole, and then one end of the wire harness 200 is inserted from the outside through the wire sheath 400 into the potting shell 100, and welded with the pin of the electronic switch 300. Then the electronic switch 300 is sent into the potting shell 100, and the potting glue 500 is filled from the opening of the potting shell 100, and the potting shell 100 is filled, and the potting glue 500 is waited for solidification. After the potting glue 500 is filled or the potting glue 500 is cured, the potting glue 500 at the opening can be smoothed by a scraper so that the cured potting glue 500 can form a flat bottom surface of the potting shell 100 .

[0017] Reference Figure 1 and Figure 2 In this embodiment, the potting shell 100 is cylindrical, and the opening size is the same as the inner diameter of the potting shell 100, so that the potting glue 500 can be fully filled into every corner of the potting shell 100. It can be understood that the electronic switch 300 is preferably an electronic switch 300 that is easy to trigger through the potting glue 500, such as a magnetic switch or a triode. In this embodiment, the electronic switch 300 is a magnetic switch, which can be triggered to turn on or off by an external magnet. Accordingly, the wiring harness 200 uses a two-core wiring harness, and the two wires 210 in the two-core wiring harness are electrically connected to the two pins of the magnetic switch respectively. The potting shell 100 and the potting glue 500 should be made of materials with strong magnetic permeability, such as aluminum alloy and epoxy resin. If the electronic switch 300 uses a triode, the wiring harness 200 should use a three-core wiring harness. In this embodiment, the potting glue 500 uses a two-component silicone potting glue. After mixing components A and B, it can be cured at room temperature. After potting, it can be left to stand and release bubbles by itself, which is easy to implement and maintain.

[0018] It should be noted that in the description of the present invention, if there are any orientation descriptions, such as up, down, front, back, left, right, etc., the orientations or positional relationships indicated are all based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and cannot be understood as a limitation on the present invention.

[0019] In the description of the present utility model, "several" means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0020] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0021] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A waterproof switch, characterized in that: The invention comprises a potting shell (100), an electronic switch (300) and a wiring harness (200); one end of the potting shell (100) is open, and the other end is provided with a wiring harness hole for the wiring harness (200) to pass through; the electronic switch (300) is potted in the potting shell (100) by potting glue (500); the wiring harness (200) is electrically connected to the electronic switch (300); and the potting glue (500) seals the opening of the potting shell (100) after curing.

2. The waterproof switch according to claim 1, characterized in that: The electronic switch (300) is a magnetic switch.

3. The waterproof switch according to claim 1, characterized in that: A wire protection sleeve (400) is provided at the wire harness hole, and the wire harness (200) passes through the wire protection sleeve (400) and passes out of the wire harness hole.

4. The waterproof switch according to claim 2, characterized in that: The wiring harness (200) is a two-core wiring harness, and two electric wires (210) in the two-core wiring harness are electrically connected to two pins of the electronic switch (300) respectively.

5. The waterproof switch according to claim 1, characterized in that: The potting glue (500) is a two-component organic silicon potting glue.

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