Centralized winding motor end part patch board

Abstract

The invention discloses a centralized winding motor end part patch board. The patch board comprises a 1-1V phase connection copper bar, a 1-2W phase connection copper bar, a 1-3U phase connection copper bar, a 1-4 center line and 1-6U, V and W three-phase binding posts. 1-5 phase-to-phase insulation paper is arranged among the 1-1V phase connection copper bar, the 1-2W phase connection copper bar,the 1-3U phase connection copper bar and the 1-4 center line, and pins welded with a motor winding are arranged on the 1-6U, V and W three-phase binding posts and the 1-4 center line. The number of pins on the U, V and W three-phase connection copper bars and the center line connection copper bar is determined according to the number of stator slots and the number of parallel connection paths ofthe motor, the current-carrying area of the connection copper bars is determined according to the motor power and the current magnitude, punch forming and insulating encapsulation are performed to form the integrated patch board, and the processing and manufacturing process is simple.

Description

technical field [0001] The invention relates to the technical field of electric motors, in particular to a junction plate at the end of a centralized winding electric motor. Background technique [0002] With the development of new energy vehicle motors in the direction of lightweight, small size and high power density. Shorten the space at the end of the motor, reduce the loss of the motor, improve the efficiency of the motor, reduce the volume of the motor, and increase the power density of the motor. Fractional slot concentrated winding can realize single-tooth winding of the motor stator, shorten the end of the motor winding, realize automatic winding, and improve the production efficiency of the motor. In the past, the connection of the lead wires at the end of the winding is directly connected by the winding enameled wire, followed by welding, and connected by a connecting terminal ring made of a printed circuit board. [0003] Due to the many lead wires of the multi...

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Problems solved by technology

[0003] Due to the many lead wires of the multi-slot stator core winding, when direct connection is used, the welding of the end coils is more complicated, and it is easy to cause problems such as wiring errors and weak welding, which will affect the performance of the motor. Wire perforation. In the case of a large number of motor slots and a large number of lead wires, each lead wire passes through the circuit board hole of the wiring board at the same time. The process is very complicated and the work efficiency is very low. At the same time, it cannot meet the quality of high-current welding.

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