A miniature pressure sensor

Abstract

The utility model relates to a kind of micro pressure sensor, including shell, mounting connector, mounting structure, circuit board and pressure sensing element, mounting connector has the first end riveted with hydraulic control valve body, and still have the second end connectable with pressure sensing element, shell is connected with mounting connector, pressure sensing element is electrically connected with circuit board, and all be located in shell, mounting structure is sleeved on pressure sensing element, and circuit board is installed on mounting connector by mounting structure, the first end of mounting connector is provided with the liquid inlet communicated with hydraulic control valve body, the second end is provided with the drainage hole communicated with liquid inlet, pressure sensing element is blocked drainage hole setting, the circumference of second end is provided with the first annular groove around drainage hole, the outer diameter of mounting connector corresponding at first annular groove is less than the aperture of liquid inlet.The micro pressure sensor provided by the utility model solves the problems of complex structure, high packaging difficulty and excessive installation stress on pressure sensing element during riveting of existing pressure sensor.

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