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公开(公告)号：US10483071B2
公开(公告)日：2019-11-19
申请号：US15862796
申请日：2018-01-05
申请人： Littelfuse, Inc.
发明人： Derek Lasini
IPC分类号： H01H85/22 , H01H85/143 , H01H85/38 , H01H85/60 , H01H85/042 , H01H85/157
摘要： Provided herein are protection devices, such as fuses. In some embodiments, a fuse may include a hollow body having first and second ends, each of the first and second ends having an end surface and a side surface extending from the end surface. The fuse may further include a fusible element disposed within a central cavity of the hollow body, the fusible element extending between the first and second ends. The fuse may further include an inner cap formed over at least one of the first and second ends. The inner cap may include a center portion in contact with the fusible element, and a plurality of spring legs extending from the center portion, wherein the plurality of spring legs is in contact with the side surface of the first and/or second ends. The fuse may further include endcaps surrounding the first and second ends.
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公开(公告)号：US10483069B2
公开(公告)日：2019-11-19
申请号：US16246515
申请日：2019-01-13
申请人： LITTELFUSE, INC.
发明人： Michael Schlaak , Gregory Stumpo , Ken Venhaus , Derek Lasini
IPC分类号： H01H69/02 , H01H85/042 , H01H85/175 , H01H85/38 , H01H85/18 , H01H85/147 , H01H85/17 , H01H85/08 , H01H85/10
摘要： A fuse including a fuse body defining an inner cavity and having at least one fuse body aperture formed therethrough, a fuse element including a first terminal and a second terminal, a first endbell and a second endbell coupled to the fuse element, the first endbell having at least two grooves formed in a surface thereof and having a first O-ring seal disposed in at least one of the grooves, the second endbell having at least two grooves formed in a surface thereof and having a second O-ring seal disposed in at least one of the grooves, an adhesive securing the first and second endbells to the fuse body, an arc quenching material disposed within the inner cavity and contacting at least a portion of the fuse element, and end caps coupled to the fuse body, the end caps sealing a portion of the fuse element within the fuse body.
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公开(公告)号：US10262828B2
公开(公告)日：2019-04-16
申请号：US15606081
申请日：2017-05-26
申请人： Littelfuse, Inc.
发明人： Michael Schlaak , Gregory Stumpo , Ken Venhaus , Derek Lasini
IPC分类号： H01H69/02 , H01H85/042 , H01H85/175 , H01H85/38 , H01H85/18 , H01H85/08 , H01H85/10
摘要： A fuse includes a fuse element and a fuse body. A portion of the fuse element is housed in a fuse body. The fuse element includes a first terminal and a second terminal disposed outside of the fuse body. The first terminal and the second terminal electrically connects the fuse element to a circuit to be protected and a power source. A first endbell and a second endbell is coupled to the fuse element. A predetermined amount of arc quenching material is disposed within the fuse body. The arc quenching material contacts at least a portion of the fuse element. The predetermined amount of the arc quenching material is less than a total volume size of the fuse tube. The arc quenching material is compacted. A remaining air gap in the fuse tube is filled with a liquid adhesive and cured to a solid state.
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4.发明授权公开(公告)号：US11651923B2
公开(公告)日：2023-05-16
申请号：US17530038
申请日：2021-11-18
申请人： Littelfuse, Inc.
IPC分类号： H01H85/165 , H01H85/143
CPC分类号： H01H85/143 , H01H85/165
摘要： A novel fuse assembly design utilizes a fuse body, a single-piece terminal assembly and a two-piece endbell. The terminal assembly is disposed within the fuse body and includes first and second opposing surfaces with a fuse element extending between a first terminal and a second terminal. The endbell, to be connected to the fuse body, includes first and second endbell portions. Formed within the first endbell portion is a first receptacle and extending from the first endbell portion is a first protrusion. Formed within the second endbell portion is a second receptacle and extending from the second endbell portion is a second protrusion. When the two endbell portions are fastened to one another with the terminal assembly sandwiched between them, the first protrusion engages the second receptacle and the second protrusion engages the first receptacle.
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5.发明授权公开(公告)号：US11289297B1
公开(公告)日：2022-03-29
申请号：US17314277
申请日：2021-05-07
申请人： Littelfuse, Inc.
IPC分类号： H01H85/143 , H01H85/165
摘要： A novel fuse assembly design utilizes single-piece terminal assemblies and two-piece endbells. The two-piece endbells and terminal assembly feature mating elements that enable fastening of the endbell portions to the terminal assembly without use of adhesives. The mating elements also provide positioning guidance for ease of assembly. Slots in the endbells for receipt of insertion pins enable the endbells to be pre-cast/pre-molded without costly rework of molding tools.
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公开(公告)号：US20210183607A1
公开(公告)日：2021-06-17
申请号：US17021774
申请日：2020-09-15
申请人： Littelfuse, Inc.
摘要： An active/passive fuse module including a base, a busbar disposed on a top surface of the base and including a fuse element and first and second terminal portions extending from opposite ends of the fuse element, the fuse element extending over a cavity in the top surface of the base, a pyrotechnic interrupter (PI) disposed atop the base, the PI including a piston disposed within a shaft above the fuse element, a first pyrotechnic ignitor coupled to a controller, the first pyrotechnic ignitor configured to detonate and force the piston through the fuse element upon receiving an initiation signal from the controller, and a second pyrotechnic ignitor coupled to the busbar by a pair of leads, the second pyrotechnic ignitor configured to detonate and force the piston through the fuse element upon an increase in voltage across the leads.
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公开(公告)号：US20190148098A1
公开(公告)日：2019-05-16
申请号：US16246515
申请日：2019-01-13
申请人： LITTELFUSE, INC.
发明人： Michael Schlaak , Gregory Stumpo , Ken Venhaus , Derek Lasini
IPC分类号： H01H85/042 , H01H85/18 , H01H85/17 , H01H85/175 , H01H85/38 , H01H69/02 , H01H85/147
摘要： A fuse including a fuse body defining an inner cavity and having at least one fuse body aperture formed therethrough, a fuse element including a first terminal and a second terminal, a first endbell and a second endbell coupled to the fuse element, the first endbell having at least two grooves formed in a surface thereof and having a first O-ring seal disposed in at least one of the grooves, the second endbell having at least two grooves formed in a surface thereof and having a second O-ring seal disposed in at least one of the grooves, an adhesive securing the first and second endbells to the fuse body, an arc quenching material disposed within the inner cavity and contacting at least a portion of the fuse element, and end caps coupled to the fuse body, the end caps sealing a portion of the fuse element within the fuse body.
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公开(公告)号：US11387068B2
公开(公告)日：2022-07-12
申请号：US17021774
申请日：2020-09-15
申请人： Littelfuse, Inc.
摘要： An active/passive fuse module including a base, a busbar disposed on a top surface of the base and including a fuse element and first and second terminal portions extending from opposite ends of the fuse element, the fuse element extending over a cavity in the top surface of the base, a pyrotechnic interrupter (PI) disposed atop the base, the PI including a piston disposed within a shaft above the fuse element, a first pyrotechnic ignitor coupled to a controller, the first pyrotechnic ignitor configured to detonate and force the piston through the fuse element upon receiving an initiation signal from the controller, and a second pyrotechnic ignitor coupled to the busbar by a pair of leads, the second pyrotechnic ignitor configured to detonate and force the piston through the fuse element upon an increase in voltage across the leads.
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公开(公告)号：US10325745B2
公开(公告)日：2019-06-18
申请号：US15713892
申请日：2017-09-25
申请人： Littelfuse, Inc.
摘要： Approaches herein provide a multiple element fuse including a first fuse element having a first pair of terminals joined by a first fusible link, and a second fuse element including a second pair of terminals joined by a second fusible link. The first pair of terminals may be directly physically coupled with the second pair of terminals. In some embodiments, the first pair of terminals and the second pair of terminals are stacked relative to one another and joined by one or more linking elements, thus causing the first fusible link and the second fusible link to extend parallel to one another. In some embodiments, a first plurality of terminal pairs are integrally linked adjacent one another along a same plane, and then subsequently coupled to a second plurality of terminal pairs.
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公开(公告)号：US20160141138A1
公开(公告)日：2016-05-19
申请号：US14699407
申请日：2015-04-29
申请人： LITTELFUSE, INC.
发明人： Michael Schlaak , Gregory Stumpo , Ken Venhaus , Derek Lasini
IPC分类号： H01H85/042 , H01H85/18 , H01H69/02 , H01H85/175
CPC分类号： H01H85/042 , H01H69/02 , H01H85/08 , H01H85/10 , H01H85/175 , H01H85/18 , H01H85/185 , H01H85/38 , Y10T29/49107
摘要： A fuse includes a fuse element and a fuse body. A portion of the fuse element is housed in a fuse body. The fuse element includes a first terminal and a second terminal disposed outside of the fuse body. The first terminal and the second terminal electrically connects the fuse element to a circuit to be protected and a power source. A first endbell and a second endbell is coupled to the fuse element. A predetermined amount of arc quenching material is disposed within the fuse body. The arc quenching material contacts at least a portion of the fuse element. The predetermined amount of the arc quenching material is less than a total volume size of the fuse tube. The arc quenching material is compacted. A remaining air gap in the fuse tube is filled with a liquid adhesive and cured to a solid state.
摘要翻译： 保险丝包括保险丝元件和保险丝本体。 保险丝元件的一部分容纳在保险丝体中。 保险丝元件包括设置在保险丝体外部的第一端子和第二端子。 第一端子和第二端子将熔丝元件电连接到要保护的电路和电源。 第一端耳和第二端耳耦合到熔丝元件。 预定量的灭弧材料设置在保险丝体内。 电弧淬火材料与保险丝元件的至少一部分接触。 预定量的灭弧材料小于保险管的总体积尺寸。 电弧淬火材料被压实。 保险丝管中的剩余气隙用液体粘合剂填充并固化成固态。
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