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东风牌EQ140型载货汽车组合仪表翘板式开关损坏的原因该组合仪表翘板开关极易产生按动时不能正常翘动的故障。笔者认为,产生故障的原因是翘板开关起翘动作用的零件选用了热变形较大的塑料件。热塑料件在弹力的作用下便会自然缩短,使翘板开关失去了中心支点,而不能...
Dongfeng brand EQ140 truck combination instrument rocker switch damage caused by the combination of rocker switch can easily produce a malfunction can not be normal when pressed. The author believes that the reason for the failure is the rocker switch from the role of the selected parts of the larger thermal deformation of plastic parts. The thermo-plastic parts will naturally shorten due to the elastic force, so that the rocker switch loses the center fulcrum, but can not ...