The air path
assembly and the wearable
electronic sphygmomanometer comprise an air box, an
air pump, an air
pressure sensor and an air valve, the air box comprises an air path channel, an air inlet is formed in the air box, and the air inlet is communicated with the air path channel; the
air pump is arranged on the inner side of the air box and is communicated with the air inlet; the air
pressure sensor is mounted on the air box and communicated with the
air channel, and the air
pressure sensor is arranged on the side, away from the air inlet, of the
air pump; the air valve is installed on the air box and communicated with the
air channel, and the air valve is arranged on the side, away from the air inlet, of the air pump. On one hand, the structure of the gas circuit
assembly can be simplified, the overall size of the gas circuit
assembly is reduced, the yield is improved, and carrying and using are convenient; and on the other hand, the sealing structure design of the gas circuit assembly is optimized, the possibility of leakage is reduced, and the gas is buffered, so that the pressure fluctuation
noise caused in the gas charging or discharging process of the gas circuit assembly can be reduced, and the accuracy of
pressure detection when the pressure sensor works is improved.