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Cooling structure of electric device

A technology for electrical devices and cooling structures, which is applied in the direction of electrical components, electrical solid devices, electrical equipment structural parts, etc., can solve the problems of increasing the size of cooling structures, achieve the effects of reducing size, promoting turbulent flow, and improving cooling efficiency

Inactive Publication Date: 2008-10-29
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this difference can be suppressed by increasing the width of the cooling medium channel away from the inlet, the size of the cooling structure will thus be increased

Method used

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  • Cooling structure of electric device
  • Cooling structure of electric device
  • Cooling structure of electric device

Examples

Experimental program
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Effect test

Embodiment Construction

[0024] Embodiments of the cooling structure for electric devices according to the present invention will be described below. The same or corresponding elements have the same reference numerals, and description thereof will not be repeated.

[0025] FIG. 1 schematically shows an example of the configuration of a drive unit including a cooling structure for an electric device according to an embodiment of the present invention. In the embodiment shown in FIG. 1 , drive unit 1 is included in a hybrid vehicle. The motor generator 100, the housing 200, the reduction gear mechanism 300, the differential mechanism 400, the drive shaft support 500, and the terminal base 600 constitute a drive unit.

[0026] Motor generator 100 is a rotating electric machine functioning as a motor or a generator, and includes a rotating shaft 110 rotatably connected to housing 200 via a bearing 120 , a rotor 130 connected to rotating shaft 110 , and a stator 140 .

[0027] The rotor 130 includes a ro...

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PUM

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Abstract

A cooling structure of an electric device is provided with an inverter; a plurality of cooling medium paths (724) wherein a cooling medium for the inverter flows; and an inlet section (722) into which the cooling medium to be supplied to the cooling medium paths (724) flows. The cooling medium paths (724) extend in a direction which orthogonally intersects with a direction wherein the inlet section (722) and the cooling medium paths (724) are arranged. The cooling structure of the electric device is further provided with a cooling medium dispersing mechanism for promoting dispersion of the cooling medium into each of the cooling medium paths (724) by suppressing flow of the cooling medium. The cooling medium dispersing mechanism is provided with a flow volume suppressing function for suppressing the flow volume of the cooling medium flowing in at least one of the cooling medium paths (724). The flow volume suppressing function is realized by means of walls (726A, 726B, 726C) arranged on the cooling medium paths (724).

Description

technical field [0001] The present invention relates to a cooling structure for an electrical device, in particular, to a cooling structure for an electrical device having a plurality of cooling medium passages. Background technique [0002] A conventionally known cooling structure for an electric device has a cooling medium passage (drain passage) extending in a direction crossing the direction of flow of the cooling medium from the inlet to the cooling medium passage. [0003] For example, US Patent No. 5,504,378 discloses a direct cooling structure for a switch module with drainage channels. [0004] Furthermore, Japanese Patent Laid-Open No. 2004-28403 discloses a cooler for a heating element, which is provided with an inlet and an outlet of a coolant on one side. [0005] Furthermore, Japanese Patent Laid-Open No. 2005-64382 discloses a cooler for cooling a plurality of electronic components from both sides, which is provided with an outlet and an inlet of a coolant on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L23/473H02M7/48H05K7/20
CPCH01L23/473H01L2924/0002H02M7/003H05K7/20927H01L25/072H01L2924/00
Inventor 朝仓健
Owner TOYOTA JIDOSHA KK