CN2421207Y - 汽车气压制动灯开关 - Google Patents

汽车气压制动灯开关 Download PDF

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Publication number
CN2421207Y
CN2421207Y CN 00229839 CN00229839U CN2421207Y CN 2421207 Y CN2421207 Y CN 2421207Y CN 00229839 CN00229839 CN 00229839 CN 00229839 U CN00229839 U CN 00229839U CN 2421207 Y CN2421207 Y CN 2421207Y
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contact
lamp switch
air pressure
utility
model
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CN 00229839
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娄培春
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ZHONGSHENG VEHICLE ELECTRIC APPLIANCES CO WUHAN
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ZHONGSHENG VEHICLE ELECTRIC APPLIANCES CO WUHAN
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Abstract

一种汽车气压制动灯开关,主要包括:外壳、胶木座、静触点、接触片、顶块。本实用新型在现有的汽车气压制动灯开关的接触片上进行改进,使其用于大功率(尤其是在24V的柴油车)的情况下,其寿命提高3倍以上,满足汽车安全性要求。

Description

汽车气压制动灯开关
汽车气压制动灯开关
本实用新型涉及一种汽车气压制动灯开关。
现有的汽车气压制动灯开关是汽车上的保安件,其工作原理是:当司机踏下刹车板后,同时有一股气流接通到开关。在气压的作用下,开关的接触片就向静触点闭合,从而接通电路,使制动灯通电。现有的开关接触片为圆形,经整体镀银后直接于静触点接触。由于镀银层较薄,仅十多微米,使得在大功率(尤其是在24V的柴油车)的情况下,薄薄的镀银层很快就被电弧烧蚀,暴露出接触片的铜基体,其结果不是铜基体表面生成氧化膜形成电路开路;就是铜基体被电蚀成通孔后也形成电路开路,结果都影响到开关的使用寿命,也影响汽车的安全性。
本实用新型的目的在于提供一种汽车气压制动灯开关,它能够克服在大功率的情况下,接触片容易烧蚀的缺点,从而提高开关的使用寿命。
实现本实用新型目的的技术方案是在现有的气压制动灯开关的接触片上,且与静触点对接处,铆接银触点。
而且,为保证触点在闭合过程中始终对正,则在接触片上开有凹槽,并将凹槽卡在顶块的凸台上。同时,顶块上的凸台又伸入胶木座的孔中,并能在孔中运动。由于胶木座上的孔起到了导向作用,因此保证了触点在闭合中的对正。
而且,为保证触点在闭合过程中始终对正,还可以将接触片直接压出弯脚,以替代顶块上的凸台,能在胶木座上的孔中运动,同样也能保证触点的对正。
从上述技术方案可知,由于用触点替代接触片上的镀银层,使得接触片的寿命提高了3倍以上,且将开关在大功率下的使用寿命从原来的8万次提高到45万次以上。
下面结合附图对本实用新型作进一步详述:
图1、现有开关结构剖视图;
图2、本实用新型结构剖视图;
图3、触点对正结构剖视图。
附图所示的结构是本实用新型的实施例。本实用新型实施与现有技术基本相同,不同之处即在接触片上增加了触点,以及增加了触点对正机构。图中:1为静触点;2为增加的触点;3为接触片;4为顶块;5为凸台;6为胶木座;7为胶木座孔;8为弯脚。

Claims (3)

1.一种汽车气压制动灯开关,主要包括外壳、胶木座、静触点、接触片、顶块,其特征是:在接触片上,且与静触点对接处,设置有触点;
2.根据权利要求1所述汽车气压制动灯开关,其特征是:接触片开有凹槽,凹槽卡在顶块的凸台上,且凸台又伸入胶木座的孔中滑动;
3.根据权利要求1所述的汽车气压制动灯开关,其特征在于:接触片上有弯脚,弯脚可伸入胶木座的孔中滑动。
CN 00229839 2000-04-30 2000-04-30 汽车气压制动灯开关 Expired - Fee Related CN2421207Y (zh)

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Application Number Priority Date Filing Date Title
CN 00229839 CN2421207Y (zh) 2000-04-30 2000-04-30 汽车气压制动灯开关

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Application Number Priority Date Filing Date Title
CN 00229839 CN2421207Y (zh) 2000-04-30 2000-04-30 汽车气压制动灯开关

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CN2421207Y true CN2421207Y (zh) 2001-02-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103223987A (zh) * 2013-05-02 2013-07-31 周敏 液压制动灯开关

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103223987A (zh) * 2013-05-02 2013-07-31 周敏 液压制动灯开关
CN103223987B (zh) * 2013-05-02 2016-03-30 重庆电子工程职业学院 液压制动灯开关

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