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Electric Motors, Powertrains and Automotive

A technology of spray holes and stator windings, applied in electric vehicles, electric power devices, motors, etc., can solve problems such as uneven cooling, overheating at the end, and poor cooling effect

Active Publication Date: 2022-04-22
HUAWEI ELECTRICAL POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this cooling method makes the temperature of the cooling liquid on the lower side higher than that on the upper side, which easily leads to local overheating of the end, uneven cooling and poor cooling effect

Method used

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  • Electric Motors, Powertrains and Automotive
  • Electric Motors, Powertrains and Automotive
  • Electric Motors, Powertrains and Automotive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] For ease of understanding, an application scenario of the embodiment of the present application is briefly introduced first.

[0032] The motor is an electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction. Its main function is to generate driving torque as a power source for electrical appliances or various machines. It can be applied to electric vehicles, specifically, can be applied to electric vehicles, for example, pure electric vehicles, extended-range electric vehicles, hybrid electric vehicles, fuel cell vehicles, new energy vehicles and the like. It can also be used in battery management, power conversion, motor drive and other equipment. figure 1 It is an example diagram of the basic structure inside a conventional motor. Such as figure 1 As shown, the traditional motor 100 mainly includes: a stator 110 , a rotating shaft 140 , a rotor 150 , a casing 160 , a front end cover 170 ...

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PUM

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Abstract

This application provides a motor, power assembly and vehicle, which can be applied to electric vehicles or electric vehicles.Among them, the motor includes the stator 110, which has a stator winding at the stator 110; the cooling device 120, the cooling device 120 is set on the setting of at least one spray set, each spraying group includes multiple spray holes, the placeThe end of multiple spray holes to the end of the stator winding group 130 spray coolant, which is distributed by the peripheral line of the cross -section of the end of the end of the stator winding.The angle between the axis of the two spray holes is greater than or equal to 45 °.The embodiment of this application can increase the coverage area of the peripheral coolant of the cross -section of the end -end 130 of the stator winding, thereby improving the cooling efficiency of the terminal 130 of the ending of the stator winding.

Description

technical field [0001] The present application relates to the technical field of motors, and more specifically, to a motor, a powertrain and an automobile. Background technique [0002] With the miniaturization of the motor and the increase of the power density of the motor, the motor, especially the end of the stator winding in the motor will generate a lot of heat during operation. If it is not cooled in time, it will have a serious impact on the reliability of the motor and the performance of the vehicle. [0003] In the prior art, sealing rings are used to seal the ends of the stator windings from the coolant, the coolant is pumped to a higher position by a pump, the coolant is injected from the liquid inlet into the cavity where the ends are located, and the The force of gravity flows out of the liquid outlet to achieve cooling of the ends of the stator windings. However, this cooling method makes the temperature of the cooling liquid on the lower side higher than tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K3/24H02K9/19H02K7/00H02K1/32H02K5/20H02K7/10B60K1/00
CPCH02K3/24H02K9/19H02K7/003H02K1/32H02K5/20H02K7/10H02K7/006B60K1/00H02K2213/03B60K2001/006Y02T10/64
Inventor 王健刚汪一波李泉明
Owner HUAWEI ELECTRICAL POWER TECH CO LTD