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Patent Searching and Data


Title:
COOLING DEVICE
Document Type and Number:
Japanese Patent JP2012189097
Kind Code:
A
Abstract:

To provide a cooling device which is provided in a housing accommodating at least one of a motor serving as a heating element and a power transmitting member so as to improve cooling efficiency of the heating element.

A space in the housing 10 is divided by a first bulkhead 11 into a first reservoir chamber 12 and a second reservoir chamber 13. The motor M is accommodated in the first reservoir chamber 12, and a second decelerating gear G3 is accommodated in the second reservoir chamber 13. Oil O is reserved in the respective reservoir chambers 12 and 13, and lower parts of the motor M and second decelerating gear G3 are soaked in the oil O. A reservoir region of the first reservoir chamber 12 is divided by a second bulkhead 16 into a first region 14 and a second region 15. In addition, a communication path 17 is formed between a downward tip 16a of the second bulkhead 16 and a bottom 12a of the first reservoir chamber 12. As for the oil O reserved in the first reservoir chamber 12, the oil O at a higher temperature remains closer to a liquid level L1 and the oil O at a lower temperature remains closer to the bottom 12a. Therefore, the oil O which moves through the communication path 17 to the second region 15 and overflows to the second reservoir chamber 13 is the oil O at the lower temperature.


Inventors:
NISHIMURA HIROSHI
MINOSHIMA NORIMOTO
TOYODA MASAYA
Application Number:
JP2011051428A
Publication Date:
October 04, 2012
Filing Date:
March 09, 2011
Export Citation:
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Assignee:
TOYOTA IND CORP
ASANO GEAR CO LTD
International Classes:
F16H57/04
Attorney, Agent or Firm:
恩田 博宣
恩田 誠