Bearing device, motor and compressor

Abstract

This application provides a bearing device, and a motor and a compressor including the bearing device. The bearing device includes a rotating shaft, a first bearing and a second bearing disposed around the rotating shaft and parallel to each other, a thrust disc sleeved on and fixed to the rotating shaft, and a sensor disc disposed around the rotating shaft and parallel to the thrust disc. A first displacement sensor including a first sensor probe and a second displacement sensor including a second sensor probe are symmetrically disposed on the sensor disc. By connecting the first displacement sensor, the second displacement sensor, and an excitation source module in parallel or in series, detection results of the first sensor probe and the second sensor probe are combined to obtain a degree of deviation of the rotating shaft.

Dependencies are inferred from the claim text.