Anti-corrosion bearing structure of plastic-encapsulated motor

Abstract

The present invention is applicable to the field of motors, and provides a bearing electric corrosion prevention structure for plastic-encapsulated motors, which includes a first bearing bracket, a second bearing bracket arranged on the other side of the stator assembly, and a bearing bracket packaged between the stator assembly and the first bearing bracket. The outer plastic casing and the metal conductive member electrically connected between the first bearing bracket and the second bearing bracket. The first electrical conductor, the second electrical conductor arranged outside the plastic-encapsulated shell and electrically connected to the second bearing bracket, and the second electrical conductor electrically connected between the first electrical conductor and the second electrical conductor and can be bent to adjust the first electrical conductor and the second electrical conductor Bendable conductors with angles between second conductors. It electrically connects the first bearing bracket and the second bearing bracket through a metal conductive member, which has high conductivity reliability, is easy to install, and will not appear aging failure and falling off, which ensures the long-term performance of plastic-sealed motors against electric corrosion of bearings reliability.

Description

technical field [0001] The invention belongs to the field of motors, in particular to a bearing electric corrosion prevention structure of a plastic-sealed motor. Background technique [0002] Conventional plastic-encapsulated brushless DC motors generally have the problem of electric corrosion of bearings. In order to solve this technical problem, the prior art proposes a technical proposal of installing conductive tape between the bearing brackets on both sides. Specifically, the two ends of the conductive tape are respectively bonded to the bearing brackets on both sides, so that the electrical connection of the bearing brackets on both sides can be realized through the conductive tape, which can relieve the electric corrosion of the bearings to a certain extent. However, this scheme In the specific application, there are still the following deficiencies: 1) relying solely on the bonding of the conductive tape and the bearing bracket to realize the installation and fixati...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a bearing electric corrosion prevention structure for plastic-sealed motors, which solves the technical problems of the existing plastic-sealed motors in which the bearing electric corrosion prevention structure is installed stably and reliably, the installation process is complicated, and the long-term reliability of bearing electric corrosion resistance is low.

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