公开(公告)号：US06175480B1

公开(公告)日：2001-01-16

申请号：US09341366

申请日：1999-07-09

Applicant: Harry Karmazyn

Inventor： Harry Karmazyn

IPC: H02H504

CPC classification number: H01H37/761 ,  H01C7/10 ,  H01H2037/046 ,  H01H2037/763 ,  H02H9/042 ,  H05K1/0201 ,  H05K1/184 ,  H05K3/3442 ,  H05K2201/10181 ,  H05K2201/10643 ,  H05K2203/159 ,  H05K2203/176

Abstract: A varistor with no connecting legs extending from it, is mounted in a slot formed in a printed circuit board. The printed circuit board carries the normal circuit tracks. The physical and electrical connection between the printed circuit board and the varistor is achieved by the use of solder. When the varistor overheats to a temperature beyond a predetermined temperature, the solder melts and the varistor is separated from the printed circuit board. A leaf spring which is biased when the varistor is inserted into the slot pushes the varistor out of the slot when the solder melts. Alternatively, when the solder melts gravity causes the varistor to fall out of the printed circuit board.

Abstract translation: 没有连接脚从其延伸的变阻器安装在形成在印刷电路板中的槽中。 印刷电路板承载正常电路轨道。 印刷电路板和压敏电阻之间的物理和电气连接通过使用焊料实现。 当压敏电阻过热到超过预定温度的温度时，焊料熔化，并且变阻器与印刷电路板分离。 当压敏电阻插入插槽时被偏置的板簧在焊料熔化时将压敏电阻推出槽。 或者，当焊料熔化重力时，压敏电阻从印刷电路板掉出。