Automobile pressure sensor and manufacturing method thereof

The invention relates to an automobile pressure sensor and a manufacturing method thereof and belongs to the technical field of pressure sensors. According to the automobile pressure sensor and the manufacturing method thereof, a shell body of the automobile pressure sensor is designed into an integrated structure and has the functions of a pressure joint, a sensor pressure sensing chamber, a compensation and conversion circuit chamber, a socket connector encapsulation interface and the like, a package of the sensor is stuck and bonded by a cheap TO-5 tube base and then is encapsulated with the shell in a fused sealing manner, the surface of a pressure sensor chip is protected by elastomer silica gel, and a compensation board, a conversion board and a socket connector are mounted at the rear part of the pressure sensor chip; the number of components of the whole sensor is small, the production procedures are few, and the usual procedures, such as metal diaphragm welding, vacuum oiling and repeated-pressurized stress relieving, of a piezoresistive silicon pressure sensor are avoided, so that the automobile pressure sensor has the characteristics of few production procedures, low cost, small appearance, being suitable for mass production and the like and fully meets the requirements of an automobile in environments, such as air pressure measurement.