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A waterproof and dustproof automobile steering wheel switch

A waterproof and dustproof, steering wheel technology, applied in electrical switches, electrical components, circuits, etc., can solve problems such as short circuits, affecting reliability, circuit corrosion, etc., to achieve high strength, prevent switch failure, and high temperature and corrosion resistance. Effect

Active Publication Date: 2018-11-27
乐星汽车技术(无锡)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The general steering wheel switch is a closed design, the water accumulated inside the steering wheel switch is not leaked in time, and the water vapor evaporates inside, which is easy to cause circuit corrosion, short circuit and other faults, affecting reliability

Method used

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  • A waterproof and dustproof automobile steering wheel switch
  • A waterproof and dustproof automobile steering wheel switch
  • A waterproof and dustproof automobile steering wheel switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The waterproof and dustproof automobile steering wheel switch of the present embodiment, as figure 1 and 2 As shown, it includes a substrate 4, an insulating film 2 and five buttons 1, a heating sheet 6 is embedded in the substrate 4, a control circuit board 3 is installed on the upper surface of the substrate 4, and five microswitches 9 are connected to the control circuit board 3. The insulating film 2 is covered on the control circuit board 3, and the five buttons 1 are respectively installed on the top of the insulating film 2 and close to the five micro switches 9. Two spacers 7, a compression spring 8 is arranged between the key 1 and the base plate 4, two hooks 1a are symmetrically formed on both sides of the lower end of the key 1, and a limit clamp plate matching the hook 1a is formed on the base plate 4 10. The upper end of the limit card plate 10 is provided with a limit hook; the insulating film 2 is sealed with the control circuit board 3; the edge of the ...

Embodiment 2

[0050] The waterproof and dustproof automobile steering wheel switch of the present embodiment is basically the same as the first embodiment, the difference is that the mass percentages of the components in the button are: ethylene-vinyl acetate copolymer: 0.85%, nano-aluminum powder: 0.42%, nano-zinc powder : 0.31%, nano-silica: 0.64%, fatty alcohol polyoxyethylene ether: 0.32%, acrylic acid: 0.25%, propylene glycol methyl ether acetate: 0.43%, tert-butyl peroxybenzoate: 0.71%, tert-butyl 2-ethylhexyl peroxycarbonate: 0.62%, 3-aminopropyltriethoxysilane: 0.71%, cetyl 3,5-di-tert-butyl-4-hydroxybenzoate: 0.19%, Butyl gum: 0.73%, diatomaceous earth: 0.42%, sorbitan fatty acid ester: 0.52%, acrylate: 0.91%, styrene: 0.56%, butyl peroxyacetate: 0.81%, magnesium stearate : 0.32%, iron fulvic acid: 0.27%, calcium oxide: 0.52%, magnesium oxide: 0.45%, glass fiber: 0.57%, acetylacetone: 0.44%, polyamide resin: 0.62%, epoxy resin: 0.22%, Vinyl trimethoxysilane: 0.37%, hydroxy silicon...

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Abstract

The invention relates to a waterproof dustproof steering wheel switch. The waterproof dustproof steering wheel switch comprises a substrate, an insulating thin film and keys, wherein heating sheets are embedded in the substrate; a control circuit board is mounted on the upper surface of the substrate; the control circuit board is connected with at least a microswitch; the control circuit board is covered with the insulating thin film; the keys are mounted above the insulating thin film close to the microswitches; the lower ends of the keys are close to the upper ends of the microswitches; parting strips are arranged between the keys; a compression spring is arranged between the keys and the substrate; clamping hooks are arranged at the lower ends of the keys; limiting clamping boards matched with the clamping hooks are fabricated on the substrate; and limiting clamping hooks are arranged at the upper ends of the limiting clamping boards. According to the waterproof dustproof steering wheel switch, the control circuit board is covered with the insulating thin film, so that the waterproof performance of the waterproof dustproof steering wheel switch is effectively improved, the switch failure caused by water in the control circuit board can be effectively prevented, and the service life of the steering wheel switch is prolonged.

Description

technical field [0001] The invention relates to a waterproof and dustproof automobile steering wheel switch, which belongs to the technical field of switch devices. Background technique [0002] With the development of science and technology, there are more and more accessories attached to automobiles, which can provide a comfortable driving environment for drivers or passengers in the automobile. These accessories provide convenience to the driver or passengers while driving, but at the same time, the accompanying serious problem is that the driver's driving concentration is reduced, which hinders safe driving. For this reason, various switch devices are intensively mounted on the steering wheel of the automobile. [0003] At present, from high-end cars to ordinary cars, various control switch buttons are installed on the steering wheel. Using the car steering wheel remote control switch assembly allows the driver to conveniently and safely manipulate peripheral equipment ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H13/06H01H13/705H01H11/00C08L69/00C08L23/08C08K13/04C08K7/14C08K3/08C08K3/36C08K3/34B29C45/76B29C45/78B29B9/06
CPCB29B9/06B29C45/76B29C45/78B29C2945/76531B29C2945/76561B29C2945/76732C08K2201/011C08L69/00C08L2205/035C08L2205/16H01H11/00H01H13/06H01H13/705C08L23/0853C08K13/04C08K7/14C08K2003/0812C08K2003/0893C08K3/36
Inventor 田斗星姚冬梅
Owner 乐星汽车技术(无锡)有限公司
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