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Motor stator and motor

A motor stator and stator slot technology, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of reducing motor efficiency, wasting copper space, and low iron utilization rate, so as to improve power density and motor efficiency and reduce power consumption. Iron content and the effect of improving iron utilization

Pending Publication Date: 2018-06-22
BORGWARNER POWERDRIVE SYST (TIANJIN) CO CHINA
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The motor with this structure leads to low iron utilization rate of the stator 200 and high cost; at the same time, it also wastes the space that copper can occupy, reducing the efficiency of the motor

Method used

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Embodiment Construction

[0033] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention. It should be noted that the "width of the rectangular slot", "the width of the stator slot" and "the cross-sectional width of the copper wire" involved in the present invention all refer to the dimensions of the corresponding parts along the circumferential direction of the stator core. The "height of the rectangular slot", "the height of the stator slot...

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Abstract

The invention relates to the technical field of motors and discloses a motor stator and a motor. The motor stator includes a stator iron core. The stator iron core is therein provided with a pluralityof stator teeth. Stator grooves are formed between the adjacent stator teeth. Each stator groove is provided with a plurality of cooper wires having rectangular sections. The stator grooves are stepgrooves composed of rectangular grooves of different widths. The widths of the rectangular grooves increase gradually successively from inside out along the radial direction of the stator iron core. The heights of the rectangular grooves decrease successively from inside out along the radial direction of the stator iron core. The section widths of the copper wires in the stator grooves are identical to the widths of the corresponding rectangular grooves. According to the invention, copper loss of the motor is reduced and efficiency of the motor is improved. At the same time, the sizes of rootparts of the stator grooves are increased, so that iron consumption of the motor is reduced, iron utilization rate of the stator is improved, copper content in the stator grooves is increased and power density of the motor and motor efficiency are improved.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a motor stator and a motor. Background technique [0002] With the global oil resource crisis and environmental pollution problems becoming more and more prominent, new energy vehicles are gradually being widely used because of their energy utilization efficiency is much higher than that of ordinary gasoline vehicles. The motor is the key to the drive system of new energy vehicles. The performance of the motor is directly related to the performance of the whole vehicle of new energy vehicles, so the optimization of components such as drive motors and generators is particularly important. [0003] Such as figure 1 with figure 2 As shown, the current hairpin motors are all wound with flat copper wires 240 of the same specification, which results in the shape of each stator slot 230 in the motor stator 200 being rectangular, that is to say, the shape of each stator too...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/16
CPCH02K1/165
Inventor 苏娅楠
Owner BORGWARNER POWERDRIVE SYST (TIANJIN) CO CHINA
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