Exhaust temperature sensor and manufacturing method thereof

Abstract

The invention provides an exhaust temperature sensor and a manufacturing method of the exhaust temperature sensor, and belongs to the technical field of automobile vibration reduction equipment. The exhaust temperature sensor comprises a bushing, a temperature measurement assembly and a vibration reduction assembly, wherein the bushing includes a shell and a core wire, the shell is provided with a first end and a second end in the length direction, one end of the core wire is located in the shell, the other end of the core wire penetrates through the second end and is located outside the shell, the temperature measurement assembly is used for measuring the exhaust temperature, and is arranged at the first end and electrically connected with the core wire, the vibration reduction assembly comprises a resonance suppression pipe and an adapter nut, the resonance suppression pipe comprises a first pipe section, a second pipe section and a third pipe section which are sequentially connected, a buffering cavity is formed between the second pipe section and the shell, the first pipe section is connected to the shell in a sleeving mode, the third pipe section is connected to the second end in a sleeving mode and fixedly connected with the shell, and the adapter nut is fixedly connected to the outer wall of the second pipe section in a sleeving mode. The exhaust temperature sensor can improve the vibration resistance and prolong the service life.

Description

technical field [0001] The invention relates to the technical field of automobile vibration damping equipment, in particular to an exhaust temperature sensor and a manufacturing method of the exhaust temperature sensor. Background technique [0002] The automobile exhaust temperature sensor is a monitoring and data acquisition device installed in the automobile exhaust emission system. Cars are prone to produce nitrogen oxides when they are running at high speed and high temperature, making car emissions not environmentally friendly. The exhaust temperature sensor can detect the exhaust temperature of the automobile exhaust emission system when the automobile engine is running at high speed and high temperature, and transmit the temperature of the exhaust gas to the automobile microcontroller, and then judge the various working conditions of the engine, and Adjust accordingly to reduce harmful gas emissions. [0003] In the related art, the exhaust gas temperature sensor o...

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Problems solved by technology

[0004] The exhaust gas temperature sensor in the related art is usually installed in front of the particulate trap of the gasoline engine. When the exhaust gas temperature sensor detects, due to the high-frequency vibration near the position of the gasoline engine corresponding to the turbine, the exhaust gas temperature sensor also fails during the detection process. There will be a certain resonance. After a long time of use, the casing used to wrap and protect the conductive wire and the core wire is prone to breakage and damage due to vibration, resulting in a low service life of the exhaust gas temperature sensor.

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