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Motor stator, manufacturing method thereof and motor

A technology for motor stators and manufacturing methods, applied in the field of motor stators and their manufacturing, can solve problems such as high manufacturing costs, achieve the effects of reducing material costs and alleviating local overheating problems

Pending Publication Date: 2020-10-30
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such manufacturing materials will result in high manufacturing costs

Method used

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  • Motor stator, manufacturing method thereof and motor
  • Motor stator, manufacturing method thereof and motor
  • Motor stator, manufacturing method thereof and motor

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Embodiment Construction

[0013] Please refer to Figure 1 to Figure 4 As shown, it provides an embodiment of a motor stator. in, Figure 1 to Figure 2 It is used to schematically illustrate the general structure of such a stator winding formed from bar windings 121 . and Figure 3 to Figure 4 This is then used to schematically show how the cross-sectional area of ​​such shaped conductors changes along the temperature distribution in the electric machine.

[0014] Specifically, the motor stator 100 includes a stator core 110 and a stator winding 120 . Wherein, the stator core 110 is provided with a plurality of grooves 111 on the axial surface, and the plurality of grooves 111 are evenly distributed along the circumferential direction of the stator core 110 .

[0015] On the other hand, regarding the stator winding 120 , it can be formed by first inserting a plurality of shaped conductors 121 into each slot 111 of the stator core 110 , and then welding adjacent ends of each shaped conductor. For e...

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PUM

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Abstract

The invention provides a motor stator, a manufacturing method thereof and a motor. The motor stator comprises a stator core body and a stator winding, wherein the stator core body is provided with a plurality of groove bodies distributed in the circumferential direction in the axial direction; the stator winding comprises a plurality of formed conductors, each formed conductor is inserted into each groove body of the stator core body, and the formed conductors are mutually welded to form a passage; the sectional area of the stator winding is associated with the temperature distribution state of the motor stator in an application scene, so that the sectional area of the stator winding of the motor stator at a lower operating temperature is enabled to be smaller than the sectional area of the stator winding of the motor stator at a higher operating temperature. According to the technical scheme, on the one hand, the problem of local overheating of the motor stator and the motor in an application scene is effectively relieved, and on the other hand, the material cost of the motor stator of the kind is effectively reduced.

Description

technical field [0001] The present application relates to the field of motors, in particular to a motor stator and a manufacturing method thereof. Background technique [0002] A motor is a widely used power source component in the prior art, and it usually includes a rotor and a stator that cooperate with each other to generate a magnetic field. In practical application scenarios, the motor usually faces uneven heat dissipation effect during operation, which will bring about uneven temperature distribution, which is very likely to cause local overheating of the motor stator and motor rotor. Therefore, for the motor stator, this will require its winding to be made of highly insulating material, otherwise the current in it will be limited due to localized overheating. Such manufacturing materials will result in high manufacturing costs. Contents of the invention [0003] In view of this, the present invention provides a motor stator, a manufacturing method of a motor stat...

Claims

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Application Information

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IPC IPC(8): H02K1/16H02K3/12H02K15/02H02K15/06
CPCH02K1/16H02K3/12H02K15/024H02K15/064
Inventor 孙阿芳重松隆史安贤嵘
Owner ROBERT BOSCH GMBH