| 摘要 |
PROBLEM TO BE SOLVED: To provide a waterproof structure between a pin hole and a terminal pin that can obtain sufficient waterproof performance only by pres-fitting of a terminal pin without using a separate member.SOLUTION: The terminal pin 4 is press-fitted and fixed to the pin hole 3 of a resin housing 2. A peripheral press-fitted portion by a press-fitting large diameter peripheral surface 41a on the side of the pin press-fitted and fixed to a large-diameter inner peripheral surface 32a of the pin hole 3, and a peripheral press-fitted portion by a press-fitting small diameter peripheral surface 42a on the side of the pin press-fitted and fixed to a small-diameter inner peripheral surface 34a of the pin hole 3 are formed at positions apart from each other in the press-fitting direction A. A plane press-fitted portion in a state in which a pin side press-fitting protrusion 43 is bit into a level difference surface 33 of the pin hole in the press-fitted direction is formed between these portions. Waterproof performance between the pin hole 3 and the terminal pin 4 is secured by these press-fitted portions. |
