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Hairpin winding forming device for driving motor of electric vehicle

A technology for driving motors and electric vehicles. It is applied in the direction of electric vehicles, manufacturing motor generators, and electromechanical devices. It can solve the problems of complex winding processing technology, difficulty in ensuring winding consistency, and increased manufacturing costs.

Active Publication Date: 2021-07-06
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the winding processing technology of this type of motor is complicated, and generally requires a large-scale automated production line, but this technology is almost monopolized by foreign countries
In addition, winding forming can also be realized by mold pressing, but in the stage of prototype design and processing, if large-scale development of molds will greatly increase the manufacturing cost, and it is difficult to ensure the consistency of windings by manual forming

Method used

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  • Hairpin winding forming device for driving motor of electric vehicle
  • Hairpin winding forming device for driving motor of electric vehicle
  • Hairpin winding forming device for driving motor of electric vehicle

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0032] see Figure 1-15 Description of this embodiment, a hairpin winding forming device for electric vehicle drive motors, which includes a base 1, a wire mold 2, a cover mold 3 and a pad mold 4, and the wire mold 2 includes a boss 2-1 and a bottom plate 2- 2. The boss 2-1 is arranged on the bottom plate 2-2, the boss 2-1 and the bottom plate 2-2 are an integrated structure, and the cover mold 3 includes a groove 3-1 and a body 3-2 , the groove 3-1 is arranged on the lower end surface of the body 3-2, the groove 3-1 and the body 3-2 are an integrated structure, and the boss 2-1 has the same shape as the groove 3-1 , the pad mold 4 includes an upper end pad 4-1, a lower end pad 4-3 and a plurality of intermediate pads 4-2, the plurality of intermediate pads 4-2 are stacked on e...

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Abstract

The invention provides a Hairpin winding forming device for an electric vehicle driving motor, and belongs to the field of electric vehicle driving motors. The problems that an existing Hairpin winding is high in manufacturing cost and poor in forming effect are solved. The device comprises a base, a wire die, a cover die and a cushion die, the wire die comprises a boss and a bottom plate, the boss is arranged on the bottom plate, the boss and the bottom plate are of an integrated structure, the cover die comprises a groove and a body, the groove is formed in the lower end face of the body, the groove and the body are of an integrated structure, the boss and the groove are the same in shape, the cushion die comprises an upper end cushion, a lower end cushion and a plurality of middle cushions, the middle cushions are mutually stacked in the radial direction, the upper end cushion and the lower end cushion are arranged at the upper end and the lower end of the stacked middle cushions, the base comprises a plurality of installation faces, and the installation faces are connected in a butt joint mode. The device is mainly used for forming the Hairpin winding.

Description

technical field [0001] The invention belongs to the field of electric vehicle drive motors, in particular to a Hairpin winding forming device for electric vehicle drive motors. Background technique [0002] In the electric vehicle drive system, in order to increase the power density of the motor, the hairpin winding structure motor has become a development trend, because the Hairpin winding is a square conductor structure, which has the advantages of high slot fill rate and high thermal conductivity. However, the winding processing technology of this type of motor is complicated, and generally requires a large-scale automated production line, but this technology is almost monopolized by foreign countries. In addition, winding forming can also be realized by mold pressing, but in the stage of prototype design and processing, if large-scale development of molds will greatly increase the manufacturing cost, and it is difficult to ensure the consistency of windings by manual mol...

Claims

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Application Information

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IPC IPC(8): H02K15/04H02K3/04
CPCH02K15/0435H02K3/04Y02T10/64
Inventor 程远鞠孝伟崔淑梅丁岭杨明亮
Owner HARBIN INST OF TECH
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