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Water cooling device for permanent magnet direct drive system of urban rail vehicle

A technology of permanent magnet direct drive and water-cooling device, which is applied in the direction of power plant, vehicle components, and the arrangement of cooling combination of power plant. problem, to achieve the effect of light weight, light weight and low auxiliary power consumption

Pending Publication Date: 2020-02-28
CRRC DALIAN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing permanent magnet direct drive cooling system is generally equipped with a water cooling device for each bogie, the structure is not compact, the total space occupied by urban rail vehicles is large, the total weight is heavy, and the total auxiliary power consumption is high

Method used

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  • Water cooling device for permanent magnet direct drive system of urban rail vehicle
  • Water cooling device for permanent magnet direct drive system of urban rail vehicle
  • Water cooling device for permanent magnet direct drive system of urban rail vehicle

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Embodiment Construction

[0024] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. It can be understood that the terms "first", "second", etc. used in the present invention can be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distingui...

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Abstract

The embodiment of the invention discloses a water cooling device for a permanent magnet direct drive system of an urban rail vehicle. The water cooling device comprises a box body frame, wherein the box body frame is provided with a first cooling branch and a second cooling branch in a distributed mode; and the first cooling branch and the second cooling branch are arranged in the box body frame in an axial symmetric mode, and the first cooling branch / the second cooling branch can inhale low-temperature air from the two sides of the box body frame correspondingly, so that cooled cooling liquidflows into the interior of a first bogie permanent magnet direct drive system / a second bogie permanent magnet direct drive system to carry out liquid-cooling heat exchange on the first bogie permanent magnet direct drive system / the second bogie permanent magnet direct drive system while the low-temperature air is blew to a rail after completing the convection heat exchange process with high-temperature cooling liquid flowing out of the first bogie permanent magnet direct drive system / the second bogie permanent magnet direct drive system. According to the water cooling device for the permanentmagnet direct drive system of the urban rail vehicle, the purpose of simultaneously cooling the two permanent magnet direct drive systems is achieved, and meanwhile, the water cooling device integrates a control system so that the auxiliary power loss and noise can be effectively reduced while the water cooling device is protected.

Description

Technical field [0001] The invention relates to the technical field of heat exchange, in particular to a water cooling device for a permanent magnet direct drive system of urban rail vehicles. Background technique [0002] Compared with the traditional asynchronous motor traction system, the permanent magnet direct drive system cancels the transmission gear box, reduces the mechanical transmission consumption, and reduces the transmission noise. Therefore, the permanent magnet direct drive traction system has begun to be popularized and applied in the next generation of urban rail transit vehicles. However, due to its high power density and large heat loss per unit volume, liquid cooling is generally used to improve heat dissipation efficiency and ensure the safe and reliable operation of the system. At present, the existing permanent magnet direct drive cooling system is generally equipped with a water cooling device for each bogie, and the structure is not compact, the total vo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61C17/00B60K11/02
CPCB61C17/00B60K11/02
Inventor 贾红洋蔡欢袁磊王硕闫春霆
Owner CRRC DALIAN INST CO LTD
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