公开(公告)号：US5945903A

公开(公告)日：1999-08-31

申请号：US919243

申请日：1997-08-30

申请人： Nagi Reddi Kanamatha Reddy ,  Robert Swensen ,  Thomas F. Draho ,  Michael Styrna

发明人： Nagi Reddi Kanamatha Reddy ,  Robert Swensen ,  Thomas F. Draho ,  Michael Styrna

IPC分类号： H01C1/14 ,  H01H85/041 ,  H01H85/20 ,  H01H85/02 ,  H01C7/10 ,  H01C7/18

CPC分类号： H01H85/0417 ,  H01C1/1406 ,  H01H85/201 ,  H01H2071/088 ,  H01H2085/0483

摘要： A circuit protection device including a pair of terminals to be electrically connected into an electrical circuit, a pair of spaced current-carrying extensions of the terminals, and an initially low resistance current limiting device extending between the current-carrying extensions. The invention includes the feature that the current-limiting element including flexible conductive current-feeding arms having inner and outer end portions, the inner end portions thereof being electrically connected to the current-carrying extensions of the terminals. The outer end portions of the current-feeding arms are cantilevered and flexible relative to the inner end portions. The device further preferably includes a PTC current-limiting element sandwiched between the flexible outer end portions of the current-feeding arms. The PTC element includes a layer of a PTC material having conductive opposite faces sandwiched between the flexible outer end portions of the arms so that the PTC material carries current between the outer end portions of the current-carrying arms. The layer of PTC material reaches a given trip level at an elevated current, expanding suddenly and substantially to flex the outer end portions of the current-carrying arm.

摘要翻译： 一种电路保护装置，其包括一对电连接到电路中的端子，一对间隔开的端子的载流延伸部分以及在电流承载延伸部之间延伸的初始低电阻电流限制装置。 本发明的特征在于，限流元件包括具有内端部和外端部的柔性导电电流馈送臂，其内端部电连接到端子的通电延伸部。 电流馈送臂的外端部相对于内端部是悬臂的和柔性的。 该装置还优选地包括夹在电流馈送臂的柔性外端部之间的PTC限流元件。 PTC元件包括PTC材料层，其具有夹在臂的柔性外端部之间的导电相对面，使得PTC材料在载流臂的外端部之间承载电流。 PTC材料层在升高的电流下达到给定的跳闸水平，突然且基本上膨胀以使载流臂的外端部弯曲。

公开(公告)号：US5663861A

公开(公告)日：1997-09-02

申请号：US480124

申请日：1995-06-07

申请人： Nagi Reddi Kanamatha Reddy ,  Robert Swensen ,  Thomas F. Draho

发明人： Nagi Reddi Kanamatha Reddy ,  Robert Swensen ,  Thomas F. Draho

IPC分类号： H01C1/14 ,  H01H85/041 ,  H02H5/04

CPC分类号： H01C1/1406 ,  H01H85/0417 ,  H01H2071/088 ,  H01H2085/0483

摘要： A circuit protection device including a pair of terminals to be electrically connected into an electrical circuit, a pair of spaced current-carrying extensions of the terminals, and an initially low resistance current limiting element extending between the current-carrying extensions. The current-limiting element includes flexible conductive current-feeding arms having inner and outer end portions, the inner end portions thereof being electrically connected to the current-carrying extensions of the terminals. The outer end portions of the current-feeding arms are cantilevered and flexible relative to the inner end portions. The device further preferably includes a PTC current-limiting element sandwiched between the flexible outer end portions of the current-feeding arms. The PTC element includes a layer of a PTC material having conductive opposite faces sandwiched between the flexible outer end portions of the arms so that the PTC material carries current between the outer end portions of the current-carrying arms. The layer of PTC material reaches a given trip level at an elevated current, expanding suddenly and substantially to flex the outer end portions of the current-carrying arm.

摘要翻译： 一种电路保护装置，包括一对电连接到电路中的端子，一对间隔开的端子的通电延伸部分以及在电流承载延伸部之间延伸的初始低电阻电流限制元件。 限流元件包括具有内端部分和外端部分的柔性导电电流馈送臂，其内端部电连接到端子的载流延伸部分。 电流馈送臂的外端部相对于内端部是悬臂的和柔性的。 该装置还优选地包括夹在电流馈送臂的柔性外端部之间的PTC限流元件。 PTC元件包括PTC材料层，其具有夹在臂的柔性外端部之间的导电相对面，使得PTC材料在载流臂的外端部之间承载电流。 PTC材料层在升高的电流下达到给定的跳闸水平，突然且基本上膨胀以使载流臂的外端部弯曲。