Motor position sensor

Abstract

The invention relates to a motor position sensor, which includes a resolver and a plurality of trigger coils; wherein, the reslover includes a body and the body includes a body rotator and a body stator; the body stator is wound and arranged on the trigger coil to sense a position angle and judge a start angle and conduce suitable current; besides, the body rotator does not needed to be wound so as to further reduce weight load of a motor axes and facilitate the reliability as well.

Description

technical field [0001] The invention relates to a motor position sensor, in particular to a motor position sensor which changes the winding structure. Background technique [0002] According to the current motor A (such as figure 1 The resolver (RESOLVER) P10 set on the shown) includes a transformer P20 and a body P30; the transformer P20 is composed of a transformer rotor P21 and a transformer stator P22; the transformer rotor P21 is annular, and the transformer rotor P21 wears Placed on the axis A1 of the motor A, a number of coils P211 are placed around the transformer rotor P21; the transformer stator P22 is ring-shaped, and the transformer stator P22 is fixed on the inner wall of the motor A; A number of coils P221 are placed around the coil, corresponding to the coil 211 of the transformer rotor P21; the main body P30 is composed of a main body rotor P31 and a main body stator P32; the main body rotor P31 is annular, and the main body rotor P31 is placed on the A shaf...

AI Technical Summary

Problems solved by technology

[0004] First, when the main body rotor P31 of the main body P30 of the resolver P10 and the transformer rotor P21 of the transformer P20 rotate coaxially, the two are electrically connected for trigger signal transmission, as the main body rotor P31 of the main body P30 and the transformer rotor When the P21 rotates, it is easy to break the line and cause the signal to disappear, so it cannot work normally

[0005] Second, the weight of the transformer P20 of the resolver P10 and the main body P30 on the axis A1 of the motor A will also cause a burden on the operation of the axis A1 of the motor A. Long-term operation will increase the vibration coefficient of the motor A and damage the axis. The core A1 structure makes the motor A internally damaged and needs to be repaired and costly

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