转向灯开左边的亮,开右边的不亮,双闪也是左边亮右边不亮,原因是什么
推荐回答(5个)
应该是由以下原因引起的:
1、右边的线路故障;
2、灯泡故障;
3、双闪的继电器故障。
一、汽车转向灯的工作原理
1、灯管采用氙气灯管,单片机控制电路,左右轮换频闪不间断工作。
2、采用闪光器:按其结构不同,可分为阻丝式、电容式和电子式三种。
其中阻丝式又可分为热丝式(电热式)和翼片式(弹跳式),而电子式又可分混合式(带触点式的继电器与电子元件)和全电子式(无继电器)。比如弹跳式闪光器,利用电流热效应原理,以热胀冷缩为动力,使弹簧片产生突变动作,来接通和断开触点,实现灯光闪烁。
二、闪光器的工作原理
常见闪光器有电容式、翼片式、晶体管式三类(图6-22)。翼片式和带继电器的晶体管式闪光器结构简单体积小、闪光频率稳定、监控作用明显、工作时伴有响声,故被广泛使用。
1、电容式闪光器
它由一只大容量电解电容器和双线圈继电器组成。
工作原理:接通转向灯开关(左或右)后,串联线圈经触点、转向信号灯构成回路,且电流较大。产生较强磁场,吸动衔铁,使触点张开。此过程中,串联线圈通电时间极短,转向信号灯不亮。触点张开后电容器经串联线圈、并联线圈、转向灯开关、转向灯及转向指示灯构成充电回路.由于充电电流很小,此时转向灯与转向指示灯不亮。触点在串并联线圈的合成磁场(方向相同)作用下,仍保持张开状态。电容器充足电后,并联线圈电流消失,铁心吸力减小,触点在复位弹簧作用下闭合,转向灯与转向指示灯亮;同时,电容器经并联线圈及触点放电,由于串联线圈与并联线圈磁场方向相反,铁心吸力极小,触点保持闭合状态。当电容器放电结束后,并联线圈电流消失,在串联线圈磁场作用下,触点再次张开,转向灯与转向指示灯变暗,电容器再次充电。如此周而复始,转向灯与转向指示灯不停地以此频率闪烁。
电容式闪光器具有监控功能,当一侧转向灯有一只或一只以上转向灯泡烧断或接触不良时,闪光器就使该侧转向灯接通时只亮不闪,以示该侧转向灯电路异常。
2、翼片式闪光器
翼片式闪光器分为直热翼片式和旁热翼片式两种。
(1)直热翼片式闪光器
主要由翼片、热胀条、触点等组成。工作时,弹性翼片在热胀条(热膨胀系数较大的金属板条)的拉力下呈弓形,触点处于闭合状态。接通转向何开关(左或右)后,转向灯与转向指示灯电路接通,灯亮。电路如下:蓄电池正极——翼片——热胀条——触点——转向灯开关——转向灯及转向指示灯——搭铁——蓄电池负极。由于电流流经热胀条,热胀条伸长。翼片在自身弹力作用下伸直,活动触点随热胀条向上移动与固定触点分离。电路被切断,转向何与转向指示灯熄灭。热胀条中电流消失后,冷却收缩,牵动翼片再次呈弓形,活动触点下移与固定触点再次闭合,电路接通,转向灯与转向指示灯又亮。如此反复变化,产生了闪烁的转向信号,同时发出“啪嗒”“啪嗒”响声。
(2)旁热翼片式闪光器
旁热翼片式闪光器与直热翼片式闪光器主要不同点在于热胀条上绕有电热丝。电热丝下端与热胀条相接,上端与静触点相连,匝间与热胀条绝缘。工作时,翼片受热胀条拉力作用呈弓形,触点张开。转向灯开关闭合后,电热丝通电加热热胀条,使其膨胀伸长,冀片在自身弹力作用了伸直,使触点闭合。触点闭合后,转向灯与转向指示灯亮。电热丝被触点短路,热胀条冷却收缩,翼片被拉呈弓形.触点再次张开,转向何与转向指示灯变暗。电热丝再次通电。如此周期性动作,转向何产生闪烁灯光信号。当电阻丝通电时.电流虽经转向信号灯构成回路,因为电流很小,转向灯不会亮。
3、晶体管式闪光器
有带继电器晶体管式闪光器(有触点)、无触点闪光器、集成电路闪光器等。
应该是转向开关坏了,右侧线路不会都断【汽车有问题,问汽车大师。4S店专业技师,10分钟解决。】
这样的情况,只有两种原因,要么是右边灯泡烧掉、要么就是右边的保险丝烧掉!【汽车有问题,问汽车大师。4S店专业技师,10分钟解决。】
双闪灯继电器坏了【汽车有问题,问汽车大师。4S店专业技师,10分钟解决。】
请检查保险丝。。。。【汽车有问题,问汽车大师。4S店专业技师,10分钟解决。】
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