The utility model relates to an improvement of a brake lamp switch for a motor vehicle, which is characterized in that the switch can be opened or closed as a dry reed pipe, and the moving part driven by the brake is provided with a permanent magnet which can induce a reed pipe to be activated. The switch fundamentally solves the problems existing in the existing mechanical pressing switch. For example, due to contact vacuum packaged in glass tube, not contact oxidation, switch contact resistance less than 100 ohm minimum, will not cause sparking contact contact resistance increases lead to phenomenon, its working life is far higher than the mechanical switch; and reed high reliability, excellent performance, is to increase the reliability of the switch. Can be fully lit after the taillights, can effectively avoid the occurrence of traffic accidents. In particular, the contact resistance is small, more suitable for LED brake taillight.
【技术实现步骤摘要】
技术是对机动车用刹车灯开关的改进,尤其涉及一种使用寿命长,动作灵敏可靠的机动车用刹车灯开关,特别适用于LED刹车尾灯。
技术介绍
刹车灯开关是机动车在减速、刹车时提示后面车辆,避免发生交通追 尾的安全器件。现有的机动车用刹车灯开关,例如中国专利CN2802691公 开的刹车灯开关,都是机械式开关,其结构包括中空壳体、位于壳体内的 触点,和接通或断开触点的触桥,推动触桥接通的推杆或杠杆和复位弹簧。 当踩下刹车踏板时,推杆或杠杆移动,触桥克服弹簧的弹力导通触点,刹 车灯亮;当松开刹车踏板时,触桥在弹簧弹力作用下复位断开,刹车灯息 灭。l然而机动车特别是汽车在行驶中刹车十分频繁,因此刹车灯开关呈一 种频繁运动,并机械压迫式接通,长时间易造成疲劳而导致接触导通性能 下1#,影响正常刹车点亮,造成安全隐患;其次机械压迫式接触开关,触点瞎露在空气中,容易受到环境等因素影响,造成触点氧化腐蚀,引起触 点接触不良,或者是接触瞬间会产生触点电弧,时间长了会造成触点被烧 蚀,也会影响触头闭合灵敏性和可靠性,这些均会造成难以点亮刹车灯或点亮不够,影响交通安全;再就是,这种机械压迫式 ...
【技术保护点】
机动车用刹车灯开关,包括中空开关壳体,内置可断开/闭合开关,由刹车动作控制开关断开/闭合的运动部件和复位弹簧和/或永磁体,其特征在于可断开/闭合开关为干簧管,运动部件上有可感应干簧管的永磁体。
【技术特征摘要】
【专利技术属性】
技术研发人员:谈岳明,董健成,
申请(专利权)人:宜兴市四通家电配件有限公司,
类型:实用新型
国别省市:32[中国|江苏]
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