Method and device for three-phase lead-out wires of traction motor

A technology for traction motors and lead wires, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of reducing the reliability of traction motor operation, the difficulty of pulling out three-phase lead wires, and the reduction of the mechanical strength of the pressure ring. Simple and convenient, improved reliability, and long-term stable operation

Active Publication Date: 2019-10-29
CSR ZHUZHOU ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is: for narrow-gauge traction motors, the size of the pressure ring of the motor is narrow and the gauge of the three-phase lead-out wires is relatively large. Holes are easy to reduce the mechanical strength of the pressure ring, which reduces the prominent problem of the operation reliability of the traction motor. A method and device for the three-phase lead-out wires of the traction motor with high current and small axial size are provided. The method and the device can effectively solve the technical problems that the traction three-phase lead-out line with high current and small axial dimension is difficult to get out and easy to run unreliably.

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] It can be seen from the accompanying drawings that the present invention relates to a method for the three-phase lead wires of a traction motor. The lead ends of the stator coils are connected in series / parallel on the stator, and then connected with the three-phase lead wires, and the three-phase lead wires cross the stator upwards. The pressure ring enters the junction box through the end cover, the motor junction box matches the end cover, and then fixes the three-phase lead wires in the junction box to seal the outlet holes of the three-phase lead wires. The shape of the three-phase lead wires and the terminal The shape of the cover is related, and the three-phase outgoing wires are fixed through the junction box.

[0024] Further, in order to ensure the reliable operation of the three-phase lead-out wires, the outlet holes of the three-phase...

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PUM

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Abstract

A traction motor three-phase lead connection method and device. Stator coil lead heads (2) are connected in series or in parallel on a stator (1), and then are connected to a three-phase lead (3); the three-phase lead goes upward across a stator clamping ring (6), and enters a junction box (5) through an end cover (4), and is fixed in the junction box; the junction box of the motor cooperates with the end cover, and the shape of the three-phase lead fits the shape of the end cover. In order to ensure reliable operation of the three-phase lead, the outlet hole (7) for the three-phase lead is closed, such that the three-phase lead and the stator end cover are in a closed state; the outlet hole for the three-phase lead is filled with insulating material, and the insulating material and the stator are dipped in paint together to ensure an insulation distance between the three-phase lead and the outlet hole.

Description

technical field [0001] The present invention relates to a manufacturing method and device of a locomotive traction motor component, especially a method and device for three-phase lead-out wires of a traction motor with a relatively large motor current and a small motor axial dimension, so that the pressure ring is narrow. Manufacture of traction motors. Background technique [0002] Traction motors are motors used for traction on railway main line electric locomotives, industrial and mining electric locomotives, diesel locomotives and various electric vehicles (such as battery cars, urban trams, underground railway electric vehicles). Traction motors include traction motors, traction generators, auxiliary motors, etc.; in the design of traction motors, the general situation of the three-phase lead wires is: after the lead wires of the stator coil are connected in series / parallel, they are connected to the lead wires. The phase lead-out wires go out of the motor frame throug...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K3/50
CPCH02K3/505H02K5/225
Inventor 王冬梅杨振中丁禄振何云风程利唐子谋
Owner CSR ZHUZHOU ELECTRIC CO LTD
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