| 摘要 |
<p>An electromagnetic switching device according to the present invention comprises: a shaft combined with a point of contact and vertically reciprocating; and an elastic member combined to the lower part of the shaft. The elastic member is characterized by vertically expanding the volume thereof in response to temperature rise. More specifically, the present invention relates to an electromagnetic switching device in which the elastic member has asymmetry lower surface and is made by rubber.</p> |
