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A hairpin winding forming device for electric vehicle drive motor

A technology for driving motors and electric vehicles, applied in electric vehicles, manufacturing motor generators, electric components, etc., can solve problems such as difficulty in ensuring winding consistency, complex winding processing technology, and increased manufacturing costs, achieving good practicability and Operability, reduction of molding cost, effect of simple structure

Active Publication Date: 2022-03-29
HARBIN INST OF TECH
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  • 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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  • A hairpin winding forming device for electric vehicle drive motor
  • A hairpin winding forming device for electric vehicle drive motor
  • A hairpin winding forming device for electric vehicle drive motor

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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 drive motor, which belongs to the field of electric vehicle drive motors. The problem of high manufacturing cost and poor forming effect of the existing Hairpin winding is solved. It includes a base, a wire mold, a cover mold and a cushion mold. The wire mold includes a boss and a bottom plate. The boss is arranged on the bottom plate. The boss and the bottom plate are an integrated structure. Groove and body, the groove is arranged on the lower end surface of the body, the groove and the body are an integrated structure, the shape of the boss and the groove is the same, the cushion mold includes an upper end pad, a lower end pad and multiple a plurality of intermediate pads, the plurality of intermediate pads are stacked on each other in the radial direction, the upper end pad and the lower end pad are arranged at the upper and lower ends of the stacked intermediate pad, the base includes a plurality of mounting surfaces, the The above-mentioned multiple installation surfaces are butt-connected. It is mainly used in the forming of Hairpin windings.

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 for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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