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倒车信号装置

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Post time 2016-3-25 08:59:51 | Show the author posts only Reply Awards |Descending |Read mode
倒车信号装置组成
倒车信号装置由倒车信号灯、倒车信号灯开关以及倒车报警器等组成。

  倒车信号灯和倒车报警器由倒车灯开关控制。倒车信号灯点亮的同时,倒车报警器的电喇叭也发出断续的声响或语言报警,以警告后车的驾驶员和行人。
倒车灯开关安装在变速器盖上,变速器处于空档或前进档时,钢球被倒档拨叉轴的圆柱面顶起,固定在推杆上的金属盘上移,与固定触点分开,倒车信号灯和倒车报警器的电路均被切断。倒车时变速杆拨到倒档位置,倒档拨叉轴上的凹槽对准钢球,两个并联弹簧将推杆连同钢球向下推至极限位置,使触点闭合(如图中所示位置),于是倒车信号灯点亮,倒车报警器也发出声响。
倒车报警器有蜂鸣器式报警器、语音式报警器等多种形式

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