Large current pin structure of coil wound rotor motor

Abstract

A large current pin structure of a coil wound rotor motor comprises a plurality of layers of red copper sheets which are in a flexible state, a imine film, a silicon rubber self-adhesive tape and a fiber glass tape, half block of crossed flexible red copper sheets wrap the imine film and the silicon rubber self-adhesive tape, and the fiber glass tape is wrapped in an upper block of the flexible red copper sheets, and a layer of epoxy self- dried lacquer is coated on the fiber glass tape. The large current pin structure of the coil wound rotor motor replaces utilization of the prior copper core rubber insulating leading and connecting wires in a parallel connection mode, and the problems that the current-carrying is big, and insulating rubber of the wire is prone to aging and short in insulating service life are effectively solved. The large current pin structure of the coil wound rotor motor has the advantages of being low in cost, high in reliability, convenient to operate and the like.

Description

technical field [0001] The invention relates to the field of motors, in particular to a large current lead wire structure of a wound rotor motor. Background technique [0002] The winding rotor of the motor has a large current when it is started, fully loaded and overloaded, especially the design power and torque of the wound rotor motor are large, which requires that the conductor connected to the slip ring of the motor rotor can carry large currents. Most of them use copper core rubber insulated lead wires, whose effective cross-section is affected by the outer diameter and uses multiple parallel connections, and is limited by the through-hole cross-section of the lead shaft diameter. Contents of the invention [0003] The purpose of the present invention is to provide a large current carrying structure, small cross-sectional area, high insulation withstand voltage, and good heat dissipation effect of a wound rotor motor with a large current lead wire structure, so that ...

AI Technical Summary

Problems solved by technology

[0002] The winding rotor of the motor has a large current when it is started, fully loaded and overloaded, especially the design power and torque of the wound rotor motor are large, which requires that the conductor connected to the slip ring of the motor rotor can carry large currents. Most of them use copper core rubber insulated lead wires, whose effective cross-section is affected by the outer diameter and uses multiple parallel connections, and is limited by the through-hole cross-section of the shaft diameter of the lead wire.

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