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Patent

A device and motor for reducing harmful bearing voltage in motor

TLDR
In this article, a reduce device and the motor of the harmful bearing voltage in the motor (M) is discussed, which can effectively restrain the bearing voltage of non-expectation and the bearingcurrent who produces therefrom.
Abstract
The utility model relates to a reduce device (1) and the motor of the harmful bearing voltage in the motor (M), the motor has rotor (2) and stator (3), wherein is in rotor (2) with be equipped with rotor side bearing inner race (4r) and stator side bearing inner race (4s) and each bearing inner race (4i) between stator (3), the device is including being used for the connection the electron jointing equipment of motor (M) wherein is equipped with compensation configuration (20), so that will bearing inner race (4r, 4s) and corresponding separately current potential (the ULA of the bearing voltage on the bearing inner race (4i) the stator), adjusts to same value. The utility model discloses can effectively reduce or thoroughly restrain the bearing voltage of non - expectation and the bearingcurrent who produces therefrom.

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Motor and electrical equipment having same

TL;DR: In this article, a conventional integrated bearing bracket is divided into a stator bracket part and a bearing support part, and a bracket insulating layer (43) is provided there between, equivalent to adding an insulating layers capacitance between the bracket and the bearing support parts.