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公开(公告)号:US20240321541A1
公开(公告)日:2024-09-26
申请号:US18188245
申请日:2023-03-22
发明人: Robert S. Douglass
IPC分类号: H01H85/06 , H01H85/165 , H01H85/18
CPC分类号: H01H85/06 , H01H85/165 , H01H85/185
摘要: Embodiments of the present disclosure provide medium or high voltage fuses that employ spiral wound elements supported by rods, which may replace the usages of a ceramic core. In particular, the use of rods to wind and fix spiral fuse elements provides increased reliability by minimizing the fuse elements from drifting within the fuse assembly.
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公开(公告)号:US11735384B2
公开(公告)日:2023-08-22
申请号:US17368080
申请日:2021-07-06
发明人: You Lu , Xuecheng Zhang , Robert S. Douglass
CPC分类号: H01H21/16 , H01H21/22 , H01H71/527
摘要: A fusible disconnect switch device is provided. The disconnect switch a switch actuator, an actuator bias element, and a slider assembly. The switch actuator is selectively positionable between an opened position and a closed position. The actuator bias element includes a first end acting on the switch actuator and a second end coupled to the switch housing. The slider assembly is linked to the switch actuator. The slider assembly includes a first slider and a second slider each slidably movable with respect to the switch housing along a linear axis. The first slider is independently movable relative to the second slider. The actuator bias element and the slider assembly are responsive to the position of the switch actuator to effect the switch closing operation and a switch opening operation.
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公开(公告)号:US20230187160A1
公开(公告)日:2023-06-15
申请号:US18165806
申请日:2023-02-07
发明人: Robert S. Douglass , John Trublowski , Rajen Modi , Nilay Mehta , Venkat raman Thenkarai Narayanan
IPC分类号: H01H85/046 , H01H85/143 , H01H69/02
CPC分类号: H01H85/046 , H01H85/143 , H01H69/022 , H01H2085/383
摘要: A power fuse for protecting an electrical load subject to transient load current cycling events in a direct current electrical power system is provided. The power fuse includes at least one fuse element assembly that includes one or more substrates, one or more sets of weak spots, and a conductor. The weak spots are formed on the substrates, and the substrates are longitudinally spaced apart from one another along the conductor. The conductor is separately provided from the substrate and the weak spots. The conductor includes one or more strips of metal having no stamped weak spot openings therein and therefore avoiding thermal-mechanical fatigue strain in the conductor when subjected to the transient load current cycling events. The conductor includes connector sections that are attached to respective ones of the sets of weak spots, and extending sections coupling the connector sections.
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4.
公开(公告)号:US20220005655A1
公开(公告)日:2022-01-06
申请号:US17368080
申请日:2021-07-06
发明人: You Lu , Xuecheng Zhang , Robert S. Douglass
摘要: A fusible disconnect switch device is provided. The disconnect switch a switch actuator, a handle bias element, and a slider assembly. The switch actuator is selectively positionable between an opened position and a closed position. The handle bias element includes a first end acting on the switch actuator and a second end coupled to the switch housing. The slider assembly is linked to the switch actuator. The slider assembly includes a first slider and a second slider each slidably movable with respect to the switch housing along a linear axis. The first slider is independently movable relative to the second slider. The handle bias element and the slider assembly are responsive to the position of the switch actuator to effect the switch closing operation and a switch opening operation.
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公开(公告)号:US20210074501A1
公开(公告)日:2021-03-11
申请号:US16590020
申请日:2019-10-01
发明人: Robert S. Douglass , John Trublowski , Rajen Modi , Nilay Mehta
IPC分类号: H01H85/046 , H01H69/02 , H01H85/08 , H01H85/06
摘要: A power fuse for protecting an electrical load subject to transient load current cycling events in a direct current electrical power system is provided. The power fuse includes at least one fuse element assembly that includes an elongated planar substrate, a plurality of fusible weak spots, and a conductor. The weak spots are formed on the substrate and are longitudinally spaced from one another on the substrate. The conductor is separately provided from the substrate and the weak spots. The conductor includes a solid elongated strip of metal having no stamped weak spot openings therein and therefore avoiding thermal-mechanical fatigue strain in the conductor when subjected to the transient load current cycling events. The solid elongated strip of metal includes coplanar connector sections that are mounted to respective ones of the weak spots and obliquely extending sections bent out of plane of the connector sections to extend above the substrate.
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公开(公告)号:US11636993B2
公开(公告)日:2023-04-25
申请号:US17185537
申请日:2021-02-25
发明人: Robert S. Douglass , John Trublowski , Rajen Modi , Nilay Mehta , Venkat raman Thenkarai Narayanan
IPC分类号: H01H69/02 , H01H85/046 , H01H85/143 , H01H85/38 , H01H85/18
摘要: A power fuse for protecting an electrical load subject to transient load current cycling events in a direct current electrical power system is provided. The power fuse includes at least one fuse element assembly that includes an elongated planar substrate, a plurality of fusible weak spots, and a conductor. The weak spots are formed on the substrate and are longitudinally spaced from one another on the substrate. The conductor is separately provided from the substrate and the weak spots. The conductor includes a solid elongated strip of metal having no stamped weak spot openings therein and therefore avoiding thermal-mechanical fatigue strain in the conductor when subjected to the transient load current cycling events. The solid elongated strip of metal includes coplanar connector sections that are mounted to respective ones of the weak spots and obliquely extending sections bent out of plane of the connector sections to extend above the substrate.
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7.
公开(公告)号:US20230343526A1
公开(公告)日:2023-10-26
申请号:US18345841
申请日:2023-06-30
发明人: You Lu , Xuecheng Zhang , Robert S. Douglass
CPC分类号: H01H21/16 , H01H71/527 , H01H21/22
摘要: A fusible disconnect switch device is provided. The disconnect switch a switch actuator, a handle bias element, and a slider assembly. The switch actuator is selectively positioned between an opened position and a closed position. The handle bias element includes a first end acting on the switch actuator and a second end coupled to the switch housing. The slider assembly is linked to the switch actuator. The slider assembly includes a first slider and a second slider each slidably movable with respect to the switch housing along a linear axis. The first slider is independently movable relative to the second slider. The handle bias element and the slider assembly are responsive to the position of the switch actuator to effect the switch closing operation and a switch opening operation.
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公开(公告)号:US11087943B2
公开(公告)日:2021-08-10
申请号:US16590020
申请日:2019-10-01
发明人: Robert S. Douglass , John Trublowski , Rajen Modi , Nilay Mehta
IPC分类号: H01H69/02 , H01H85/046 , H01H85/06 , H01H85/08
摘要: A power fuse for protecting an electrical load subject to transient load current cycling events in a direct current electrical power system is provided. The power fuse includes at least one fuse element assembly that includes an elongated planar substrate, a plurality of fusible weak spots, and a conductor. The weak spots are formed on the substrate and are longitudinally spaced from one another on the substrate. The conductor is separately provided from the substrate and the weak spots. The conductor includes a solid elongated strip of metal having no stamped weak spot openings therein and therefore avoiding thermal-mechanical fatigue strain in the conductor when subjected to the transient load current cycling events. The solid elongated strip of metal includes coplanar connector sections that are mounted to respective ones of the weak spots and obliquely extending sections bent out of plane of the connector sections to extend above the substrate.
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公开(公告)号:US20210183606A1
公开(公告)日:2021-06-17
申请号:US17185537
申请日:2021-02-25
发明人: Robert S. Douglass , John Trublowski , Rajen Modi , Nilay Mehta , Venkat raman Thenkarai Narayanan
IPC分类号: H01H85/046 , H01H85/143 , H01H69/02
摘要: A power fuse for protecting an electrical load subject to transient load current cycling events in a direct current electrical power system is provided. The power fuse includes at least one fuse element assembly that includes an elongated planar substrate, a plurality of fusible weak spots, and a conductor. The weak spots are formed on the substrate and are longitudinally spaced from one another on the substrate. The conductor is separately provided from the substrate and the weak spots. The conductor includes a solid elongated strip of metal having no stamped weak spot openings therein and therefore avoiding thermal-mechanical fatigue strain in the conductor when subjected to the transient load current cycling events. The solid elongated strip of metal includes coplanar connector sections that are mounted to respective ones of the weak spots and obliquely extending sections bent out of plane of the connector sections to extend above the substrate.
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