Motor

A technology of base and cooling cover, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problem of asymmetric temperature distribution on both sides of the motor, improve the uniformity of temperature distribution, reduce the axial temperature difference, and achieve reasonable air volume effect of assignment

Active Publication Date: 2020-12-11
CSR ZHUZHOU ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the first object of the present invention is to provide a motor to reduce the temperature difference between the end winding and the straight section, and at the same time solve the problem of asymmetric temperature distribution on both sides of the motor

Method used

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Embodiment Construction

[0027] The embodiment of the invention discloses a motor to reduce the temperature difference between the end winding and the straight section, and at the same time solve the problem of asymmetric temperature distribution on both sides of the motor.

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] see Figure 1-Figure 2 , figure 1 Schematic diagram of the structure of the motor provided by the embodiment of the present invention; figure 2 A schematic diagram of the axial ventilation hole of the s...

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Abstract

The invention discloses a motor. A sealing part is arranged on a cooling bottom plate at the cooling medium inlet end of an outer air path, so that airflow driven by an inner fan enters through an airinlet duct and can only enter a cooling cover through a rotor and a stator to force a cooling medium to enter the stator to cool the stator, the air volume of a straight-section winding is increased,the temperature difference between the cooling straight section winding and the cooling end winding is reduced, the axial temperature difference of the stator is reduced, the temperature distributionuniformity is improved, the hot spot temperature difference of the windings is reduced, and the motor operation reliability is improved; the air volume is reasonably distributed, the temperature difference between the temperature entering a motor body through the shaft extension side of a cooling assembly and the non-shaft side is reduced, the temperature uniformity of the two sides of the motoris improved, and meanwhile the cooling effect of a stator is improved.

Description

technical field [0001] The present invention relates to the technical field of motors, and more specifically, to a motor. Background technique [0002] With the promotion of high-efficiency and energy-saving motors, the design of motors is gradually developing in the direction of high efficiency, miniaturization, light weight, and low cost. The temperature rise of the motor has become a key factor restricting the development of the motor. The common cooling method of high-voltage motors is the air-to-air cooling structure. The cooling feature is that the primary cooling medium circulates in a closed circuit, and the heat is transferred to the surrounding environment through the external cooler directly installed on the motor. The key technical problems that need to be solved by using this cooling method include: on the one hand, ensure that the temperature rise of the stator winding cannot exceed the allowable temperature rise limit; on the other hand, reduce the unevenness...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/06H02K9/14H02K5/20H02K1/20H02K1/32
CPCH02K9/06H02K9/14H02K5/20H02K1/20H02K1/32Y02T10/64
Inventor 郑国丽黄鹏程丰帆王虎杨琰河
Owner CSR ZHUZHOU ELECTRIC CO LTD
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