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Traction motor junction box suitable for high voltage class and manufacture method of traction motor junction box

A technology for traction motors and junction boxes, which is applied in the manufacture of motor generators, electrical components, electromechanical devices, etc. It can solve the problems of unreliable insulation of motor junction boxes, achieve stable insulation performance, facilitate sealing, and ensure insulation reliability.

Active Publication Date: 2014-06-11
CSR ZHUZHOU ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a traction motor junction box suitable for high voltage levels and its manufacturing method, which can solve the problem of unreliable insulation of the motor junction box when the motor voltage is as high as 4500V and the space size is small

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  • Traction motor junction box suitable for high voltage class and manufacture method of traction motor junction box

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Embodiment Construction

[0026] like figure 1 As shown, the traction motor junction box suitable for high voltage levels includes a box body 1 and a junction box cover plate 3 covered on the box body, three-phase lead wires 2, three-phase cables 5 and potting glue 4, The three-phase lead wires and the three-phase cables all enter the box body from outside the box body and are connected in the box body, and the potting glue is potted inside the box body. The box body is provided with feet at the bottom of the box body, three-phase lead-out wire outlet holes for three-phase lead-out wires to pass through, three-phase cable wire outlet holes for three-phase cable wires to pass through, and three-phase cable outlet holes for tightening three-phase cables. Thread tightening member 6.

[0027] The internal wiring of the motor junction box adopts a welding structure. After the welding is completed, it is insulated, and then the junction box is potted as a whole to solve the problem of reliable sealing and i...

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Abstract

The invention discloses a traction motor junction box suitable for a high voltage class and a manufacture method of the traction motor junction box. The traction motor junction box comprises a box body, a junction box cover plate, a three-phase outgoing line, a three-phase cable wire and pouring sealant, wherein the junction box cover plate covers the box body, both the three-phase outgoing line and the three-phase cable wire enter the box body from the outside and are connected in the box body, and the pouring sealant is poured inside the box body. A three-phase outgoing line outlet through which the three-phase outgoing line passes, a three-phase cable wire outlet through which the three-phase cable wire passes, and a screwing member used for screwing the three-phase cable wire are arranged on the box body. The manufacture method of the junction box comprises the following steps: casting the box body; connecting the three-phase outgoing line with the three-phase cable wire; insulation-wrapping; and pouring and sealing. The junction box disclosed by the invention brings the convenience for sealing and mass production, and is low in cost, reliable in sealing and insulation, and capable of meeting the requirements of high voltage class and small space size during the operation of a traction motor.

Description

technical field [0001] The invention relates to the technical field of motor equipment, in particular to a traction motor junction box suitable for high voltage levels and a manufacturing method thereof. Background technique [0002] In the design of traction motors, due to the requirements of operating conditions, the motors often run at a higher voltage level. At the same time, since the traction motors are generally suspended at the bottom of the vehicle through the bogie, and the space at the bottom of the vehicle is limited, the design dimensions of the traction motors are relatively small. Small, that is, the space size of the traction motor is more restricted, so the traction motor junction box often has space size restrictions. [0003] When the voltage level of the traction motor is high, the creepage distance of the exposed parts where the three-phase lead wires are connected to the three-phase cables is also relatively large. Therefore, it is necessary to reasona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/22H02K15/14
Inventor 王冬梅杨振中丁禄振梁西川何云风唐子谋程利
Owner CSR ZHUZHOU ELECTRIC CO LTD
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