公开(公告)号：US3903493A

公开(公告)日：1975-09-02

申请号：US47174074

申请日：1974-05-20

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： RICHARDS EDWARD L ,  SCHWEINSBERG PAUL R ,  UNTERBERGER FRANK D

IPC: H01H71/74 ,  H01H7/16

CPC classification number: H01H71/7427

Abstract: An overload relay with a thermal tripping mechanism for releasing the separable contacts of an associated circuit interrupter in response to overload currents. The tripping mechanism comprising a latch plate and a latch lever for moving the latch plate to the unlatched position. The latch lever being biased to the latched position and being movable by one or more bimetals in the relay to the unlatched position upon the occurrence of an overload current. The latch lever being pivotally mounted on one end of an adjustment rod, the other end of which is provided with adjusting means for longitudinally moving the rod to effect a change in the spacing between the pivot point and the latch plate on one end as well as the pivot point and the point of contact of the latch lever with the bimetal.

Abstract translation: 具有热跳闸机构的过载继电器，用于响应于过载电流释放相关联的电路断续器的可分离触点。 该跳闸机构包括一个闩锁板和用于将闩锁板移动到解锁位置的闩锁杆。 闩锁杆被偏置到锁定位置，并且在发生过载电流时可以通过继电器中的一个或多个双金属件移动到解锁位置。 闩锁杆枢转地安装在调节杆的一端上，其另一端设置有用于纵向移动杆的调节装置，以在一端上实现枢转点和闩锁板之间的间隔的改变，以及 枢轴点和闩锁杆与双金属接触点。