| 摘要 |
PROBLEM TO BE SOLVED: To attain reduction of the number of components and working process of assembly.SOLUTION: A cover 5 is formed in a long box shape having a bottom wall 50 and side walls 51 surrounding the bottom wall 50 by a synthetic resin material with insulation property such as polybutylene terephthalate (PBT) resin. A window hole 500 of rectangular and long shape is open on the bottom wall 50 of the cover 5. Then, a plurality of louvers 53 are formed integrally with the cover 5. Thereby, as the cover 5 is installed on a heat radiation member 2, installation of the louvers 53 is simultaneously completed. As a result, compared with a conventional case as written in a patent document 1, reduction of the number of components and working process of assembly can be attained. |
