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Motor stator, manufacturing method of motor stator and hairpin motor

A technology of motor stator and manufacturing method, which is applied in the direction of manufacturing motor generators, prefabricated windings embedded in motors, electrical components, etc., can solve problems such as not being able to satisfy torque and power at the same time, reduce motor torque and power, and reduce excitation current, etc., to achieve The effect of balancing power and torque, reducing cable outlet height, and increasing adjustability

Pending Publication Date: 2021-11-09
上海伊控动力系统有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the invention is to provide a motor stator, a manufacturing method of the motor stator, and a card-generating motor. The number of conductors in each slot is set to an odd number of layers, which can effectively solve the problem that the current number of winding layers is an even number, and the increase in the number of winding conductors will increase. The inductance of the motor leads to a decrease in the excitation current, reducing the torque and power of the motor, which may lead to technical problems that cannot meet the torque and power at the same time when designing the motor

Method used

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  • Motor stator, manufacturing method of motor stator and hairpin motor
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Embodiment Construction

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the a...

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Abstract

The invention discloses a motor stator, a manufacturing method of the motor stator and a hairpin motor. Independent loops forming the first-phase winding, the second-phase winding and the third-phase winding in the motor stator are respectively and sequentially arranged in three adjacent continuous winding grooves in a staggered manner, each independent loop is formed by alternately connecting winding coils with the span of (1+3m) winding grooves, and m is a positive integer; a repeated winding unit is contained in three adjacent winding grooves forming an independent loop and having the span of (1+3m) winding grooves, and the repeated winding unit is formed in the three adjacent winding grooves through two-time lap winding, one-time wave winding and two-time lap winding. The number of conductors in each winding groove is set to be odd number layers, the winding mode is simple, the adjustability of the number of turns of the winding is improved, the power and torque during motor design are balanced, the collector ring is simplified, and the wire outlet height is reduced.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of motors, and in particular to a motor stator, a manufacturing method of the motor stator, and a clip-generating motor. Background technique [0002] The stator winding includes a plurality of hairpin coils, and the multiple hairpin coils are inserted into the slots of the stator core according to a certain arrangement to form the required windings of single-phase motors or multi-phase motors. [0003] At present, in the design of the existing car generator motors, the number of conductors per slot of the motor stator is basically designed with an even number of layers. With the higher and higher requirements for power density, the input current of the controller is continuously increased. In order to solve the problems of winding skin effect, copper loss and heat generation, the number of winding layers is gradually increased. Since the windings of the card-generating motors are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/16H02K3/12H02K3/28H02K15/06
CPCH02K1/16H02K3/12H02K3/28H02K15/064H02K2213/03
Inventor 杨博淼朱雷杨守银吴四军王爱平
Owner 上海伊控动力系统有限公司
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