| 摘要 |
PROBLEM TO BE SOLVED: To secure electric conduction between both a top and a bottom cover and make the grounding of a printed circuit board complete by equipping the bottom cover with elastic contact pieces which project upward from side parts of frame fitting faces and slant inwardly, and equipping the top cover with a contact part which comes into contact with the elastic contact piece. SOLUTION: The bottom cover 20 is equipped with a couple of elastic contact pieces 24 which project upward from side parts of both right and left frame fitting surfaces 22. The contact part 14 of the top cover 10 comes into contact with the tips 26 of the elastic contact pieces 24 of the bottom cover 20, the elastic contact pieces 24 move into a frame 30 so that the tips 26 slide on the contact part 14 of the top cover 10; and the tips 26 enter clearance recessed parts 36 and the covered part 15 of the top cover 10 covers the frame 30 and elastic contact pieces 24. Further, the grounding tab of the top cover 10 comes into contact with the grounding path of the printed circuit board. Therefore, the bottom cover 20 and top cover 10 come into elastic contact by the elastic contact pieces 24 to secure their electric conduction. |
