阅读说明：本技术 适用于压敏电阻的可外部控制的热脱扣装置、方法及应用 (Externally controllable thermal trip device and method suitable for piezoresistor and application ) 是由 潘挺 于 2018-01-22 设计创作，主要内容包括：一种适用于压敏电阻的可外部控制的热脱扣装置,包括压敏电阻芯片(1)和热脱离器(2),还包括可控发热元件(3)；热脱离器(2)的脱扣电极(21)与压敏电阻芯片(1)的电极(11)通过可熔的焊接材料(4)连接；可控发热元件(3)由外部控制终端控制进行发热,并将发热的热量传递至焊接材料(4)的焊接处,以熔化焊接材料(4),使热脱离器(2)的脱扣电极(21)与压敏电阻芯片(1)断开电连接。通过在外部控制可控发热元件(3)发热,以实现热脱离器(2)与压敏电阻芯片(1)的主动脱离,如,当发现压敏电阻芯片(1)劣化或其他元器件老化时,在外部控制终端的控制下,可控发热元件(3)可自主发热,使得焊接材料(4)熔化,热脱离器(2)与压敏电阻芯片(1)主动脱离,提高应用该压敏电阻的设备的安全可靠性。(An externally controllable thermal trip device suitable for a piezoresistor comprises a piezoresistor chip (1), a thermal trip (2) and a controllable heating element (3); a tripping electrode (21) of the thermal disconnector (2) is connected with an electrode (11) of the piezoresistor chip (1) through a meltable welding material (4); the controllable heating element (3) is controlled by an external control terminal to generate heat, and the generated heat is transferred to the welding position of the welding material (4) to melt the welding material (4), so that the tripping electrode (21) of the heat detacher (2) is electrically disconnected with the piezoresistor chip (1). The controllable heating element (3) is controlled to generate heat externally to realize active separation of the thermal release device (2) and the piezoresistor chip (1), for example, when the piezoresistor chip (1) is degraded or other components are aged, the controllable heating element (3) can generate heat automatically under the control of an external control terminal, so that the welding material (4) is melted, the thermal release device (2) and the piezoresistor chip (1) are separated actively, and the safety and reliability of equipment applying the piezoresistor are improved.)