Moving Body Cooling Apparatus

Abstract

To obtain a moving body cooling apparatus which can improve cooling performance through efficient use of traveling wind produced as a moving body is running. The direction of grooves 4 f formed by flat-shaped cooling fins 4 c provided integrally with a base portion 4 a to which semiconductor devices to be cooled are affixed is inclined from a moving direction of a car body 1 which is an example of a moving body. As the car body 1 runs, traveling wind passes through the grooves 4 f as shown by an arrow C. As the length of the grooves 4 f becomes shorter, pressure loss due to passage of the wind decreases, flow rate of the wind increases, and the amount of heat to be removed from the flat-shaped cooling fins 4 c on both sides of each groove 4 f decreases. Therefore, temperature increase in the traveling wind is reduced and cooling performance is improved.

1 - 5 . (canceled) 
   
   
       6 . A moving body cooling apparatus to be installed on a moving body, said moving body cooling apparatus comprising:
 a heat-generating element mounting portion on which a heat-generating element to be cooled is mounted; and   a cooling fin block formed integrally with said heat-generating element mounting portion, said cooling fin block having a plurality of cooling fins which form grooves extending in a direction inclined from a moving direction of the moving body;   wherein said cooling fin block has a slot which divides said grooves at least in one of the directions parallel to and perpendicular to the moving direction of the moving body.   
   
   
       7 . The moving body cooling apparatus as recited in  claim 6 , wherein said cooling fin block has the slot running in the direction parallel to the moving direction of the moving body, and said plurality of cooling fins form said grooves in such a manner that said grooves are oppositely inclined with respect to the slot running in the direction parallel to the moving direction of the moving body. 
   
   
       8 . The moving body cooling apparatus as recited in  claim 6 , wherein a wind drawing member projecting from said cooling fins is provided in a direction extended from said grooves. 
   
   
       9 . The moving body cooling apparatus as recited in  claim 6 , wherein the height of said cooling fins from said heat-generating element mounting portion varies along a longitudinal direction of said grooves.