The utility model provides a connector for a vehicle air fuel ratio sensor, including plastic parts, terminals and variable thick film resistors. The plastic parts are provided with a mouth and an opening corresponding to the shape of the terminal, and a slot corresponding to the shape of a variable thick film resistor; the same terminal is provided with a clip of a plastic piece. The terminal opening is also provided with a U shaped mouth corresponding to the opening of the plastic part; the terminal is flexed by bending with a variable thick film resistance sheet. The terminal is connected to the plastic part and the other end is connected to the variable thick film resistor, and the terminals are mounted on the outer surface of the plastic parts so that the structure of the whole connector is clear at a glance. It is not only helpful to the production and assembly, but also more convenient for the future maintenance check, and is more convenient when using the laser to adjust the resistance value. It is not easy to cause the surface damage of the plastic parts; the variable thick film resistor is solidified in the slot of the plastic parts through the spot glue, making the fixed mode of the variable thick film resistor more stable and stable.
【技术实现步骤摘要】
一种车用空燃比传感器的连接器
本技术涉及一种空燃比传感器的连接器,尤其涉及一种车用空燃比传感器的连接器。技术背景电喷车为获得高排气净化率,降低排气中(CO)一氧化碳、(HC)碳氢化合物和(NOx)氮氧化合物成分,必须利用三元催化器。在使用三元催化转换器以减少排气污染的发动机上,空燃比传感器是必不可少的元件。由于混合气的空燃比一旦偏离理论空燃比,三元催化剂对CO、HC和NOx的净化能力将急剧下降,故在排气管中安装空燃比传感器,用以检测排气中氧的浓度,并向ECU发出反馈信号,发动机管理系统根据氧传感器反馈的信号,经过计算、分析、判断后发出指令给各执行器完成各种动作,从而将混合气的空燃比控制在理论值附近,最大程度地进行排放污染物的转化和净化。空燃比传感器安装于对应其设置的连接器上。连接器通过连接导线与控制器连接。为了在空燃比传感器系统中实现期望的电信号控制,需要串联电阻元器件,并根据实际情况调整和校准可变电阻元器件中的阻值。现有技术中,连接器外部的连接导线串联有可变电阻元器件,可变电阻元器件与连接导线是通过焊接方式所连接,是不可逆的连接方式。连接完成后,还需要对可变 ...
【技术保护点】
一种车用空燃比传感器的连接器,包括塑胶件(51)、端子(52)和可变厚膜电阻片(53),其特征在于:所述塑胶件(51)上设有与端子(52)形状相对应的卡口(43)和开口(42),塑胶件(51)上还设有与可变厚膜电阻片(53)形状相对应的槽口(41);所述端子(52)经过折弯与可变厚膜电阻片(53)压焊连接,端子(52)一端连接于塑胶件(51),另一端连接于可变厚膜电阻片(53),且端子(52)装设于塑胶件(51)的外表面;所述可变厚膜电阻片(53)通过点胶固化连接于塑胶件(51)的槽口(41)中。
【技术特征摘要】
1.一种车用空燃比传感器的连接器,包括塑胶件(51)、端子(52)和可变厚膜电阻片(53),其特征在于:所述塑胶件(51)上设有与端子(52)形状相对应的卡口(43)和开口(42),塑胶件(51)上还设有与可变厚膜电阻片(53)形状相对应的槽口(41);所述端子(52)经过折弯与可变厚膜电阻片(53)压焊连接,端子(52)一端连接于塑胶件(51),另一端连接于可变厚膜电阻片(53),且端子(52)装设于塑胶件(51)的外表面;所述可变厚膜电阻片(53)通过点胶固化连接于塑胶件(51)的槽口(41)中。2.根据权利要求1所述的车用空燃比传感器的连接器,其特征在于:所述端子(52)上设有与塑胶件(51)的卡口(43)相配合的端子开口(521),端子(52)上还设有与塑胶件(51)的开口(42)相对应的U形口(522)。3.根据权利要求2所述的车用空燃比传感器的连接器,其特征在于:所述端子(52)上设有位于U形口(522)下方的折弯口(523),端子(52)的折弯方向平行于端子的底边,折弯角度为88°~90°。4.根据权利要求1所述的车用空燃比传感器的连接器,其特征在于:所述可变厚膜电阻片(53)为一矩形,其长度小于塑胶件(51)的槽口(41)的长度,其宽度小于塑胶件(...
【专利技术属性】
技术研发人员:吕平平,沈佳佳,倪紫群,冯才安,沈平平,毕培红,陆丽,
申请(专利权)人:浙江湖州新京昌电子有限公司,
类型:新型
国别省市:浙江,33
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