Title:
HEAT SINK
Document Type and Number:
WIPO Patent Application WO/2018/138936
Kind Code:
A1
Abstract:
Provided is a heat sink, wherein: a first radiating fin (12) having a low fluid resistance and formed in a pin shape is disposed in a region requiring high cooling performance; and a second radiating fin (13) having a high fluid resistance and having a shape in which a plurality of rows of zigzag meandering grooves are arranged at a narrow pitch is disposed in a region not requiring high cooling performance. Furthermore, the first radiating fin (12) and the second radiating fin (13) are arranged in parallel to the direction of flow of a coolant.
Inventors:
ARATA KAZUKI (JP)
TAMURA MASAYOSHI (JP)
TAMURA MASAYOSHI (JP)
Application Number:
PCT/JP2017/010978
Publication Date:
August 02, 2018
Filing Date:
March 17, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H05K7/20; H01L23/473; F28D15/02
Domestic Patent References:
| WO2012114475A1 | 2012-08-30 | |||
| WO2017005462A1 | 2017-01-12 |
Foreign References:
| JP2012044140A | 2012-03-01 | |||
| JP2005020881A | 2005-01-20 | |||
| JP2012199421A | 2012-10-18 | |||
| JP2008171840A | 2008-07-24 | |||
| JP2010203694A | 2010-09-16 | |||
| JPS565438B2 | 1981-02-04 |
Other References:
See also references of EP 3576509A4
Attorney, Agent or Firm:
OIWA Masuo et al. (JP)
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