Title:
冷却器
Document Type and Number:
Japanese Patent JP5051322
Kind Code:
B1
Abstract:
In a cooling device (4), a cooling medium (40) flows with respect to pin fins (20) disposed between a top plate (10) and a cooling case (30). In spaces (S1) between the side wall surfaces (32) of the cooling case (30), said side wall surfaces extending in the flow direction in which the cooling medium (40) flows, and edge portion pin fins (20a) among the pin fins (20), said edge portion pin fins being closest to the side wall surfaces (32), flow preventing means for preventing the cooling medium (40) from linearly flowing in the flow direction are provided. The flow preventing means are protrusions (35) that extend in the direction perpendicular to the side wall surfaces (32) of the cooling case (30) from the side wall surfaces (32). With the protrusions (35), a linear flow of the cooling medium (40) is not generated in the spaces (S1), and the flow speed of the cooling medium that exhibits a cooling function by abutting on the pin fins (20) is increased. As a result, a turbulent flow is easily generated, and cooling performance is improved.
Inventors:
Yuya Takano
Application Number:
JP2011536675A
Publication Date:
October 17, 2012
Filing Date:
February 23, 2011
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H05K7/20; H01L23/473
Domestic Patent References:
| JP2003047258A | 2003-02-14 | |||
| JP2008187754A | 2008-08-14 | |||
| JP2009152455A | 2009-07-09 | |||
| JP2009260037A | 2009-11-05 |
Attorney, Agent or Firm:
Patent Business Corporation Cosmos Patent Office