公开(公告)号：US5604474A

公开(公告)日：1997-02-18

申请号：US402001

申请日：1995-03-10

申请人： John G. Leach ,  Ronald E. Bennett

发明人： John G. Leach ,  Ronald E. Bennett

IPC分类号： H01H85/042 ,  H01H85/055 ,  H01H85/38 ,  H01H85/04

CPC分类号： H01H85/042 ,  H01H85/055 ,  H01H85/38

摘要： An improved high voltage, full range, current limiting fuse with enhanced ability to dear high and low fault currents, even after the fuse has been subjected to a potentially damaging current surge, includes a sand-filled tubular housing with conductive terminals at either end and a dielectric support member supported therein about which a fusible structure is spirally wound. The fusible structure is electrically connected to the terminals and includes one or more high fault current interrupting elements for clearing high fault currents to which is mounted a low fault current interrupting assembly. The low fault current interrupting assembly includes a plurality of conductive components one of which is a damage sensor portion having a melting time-current characteristic which results in the damage sensor portion melting before the one or more high fault current interrupting elements. This enables the fuse to interrupt a low current which might exist after an element-damaging surge has occurred. A thermal shield mounted to the housing adjacent the low fault current interrupting assembly prevents damage to the housing caused by arcing in the low fault current interrupting assembly.

摘要翻译： 即使在保险丝经受了潜在的有害电流浪涌之后，即使在保险丝经受了潜在的有害电流浪涌之后，改进的高电压，全范围限流保险丝具有增强的高，低故障电流的能力，包括一个充满砂的管状外壳，其两端都有导电端子， 支撑在其中的电介质支撑构件，可熔结构螺旋缠绕在该电介质支撑构件上。 可熔结构电连接到端子并且包括用于清除高故障电流的一个或多个高故障电流中断元件，安装有低故障电流中断组件。 低故障电流中断组件包括多个导电部件，其中之一是具有熔化时间 - 电流特性的损伤传感器部分，其导致损坏传感器部分在一个或多个高故障电流中断元件之前熔化。 这使熔断器能够中断在发生元件损坏浪涌之后可能存在的低电流。 安装在与低故障电流中断组件相邻的壳体上的热屏蔽防止由低故障电流中断组件中的电弧引起的对壳体的损坏。

公开(公告)号：US4486734A

公开(公告)日：1984-12-04

申请号：US483391

申请日：1983-04-08

申请人： John G. Leach

发明人： John G. Leach

IPC分类号： H01H85/165 ,  H01H37/76 ,  H01H85/02 ,  H01H85/042 ,  H01H85/06 ,  H01H85/11 ,  H01H85/12 ,  H01H85/38 ,  H01H85/04

CPC分类号： H01H85/042 ,  H01H85/38

摘要： This high voltage fuse comprises a pair of spaced terminals and a fusible conductive element connected between the terminals. At spaced locations along the length of the fusible element, there are bodies of a material that exothermically reacts when heated to a predetermined temperature. Connected between the terminals independently of the fusible element is a triggering circuit. The bodies of exothermic material are connected in good heat-transfer relationship with the triggering circuit and the fusible element so that the heating effect of current through the triggering circuit upon disruption of the fusible element causes the material of said bodies to exothermically react and thus cause further disruption of the fusible element at additional locations respectively located adjacent said bodies.

摘要翻译： 该高压熔断器包括一对间隔开的端子和连接在端子之间的可熔导电元件。 在沿着可熔元件的长度的间隔位置处，存在当被加热到预定温度时放热反应的材料的主体。 连接在独立于可熔元件的端子之间是触发电路。 放热材料的主体与触发电路和可熔元件具有良好的热传递关系，使得在熔断元件断开时通过触发电路的电流的加热效应导致所述主体的材料放热反应，从而导致 在分别位于所述主体附近的附加位置处进一步破坏可熔元件。

公开(公告)号：US4357588A

公开(公告)日：1982-11-02

申请号：US270032

申请日：1981-06-03

申请人： John G. Leach ,  James J. Carroll

发明人： John G. Leach ,  James J. Carroll

IPC分类号： H01H85/08 ,  H01H37/76 ,  H01H85/042 ,  H01H85/0445 ,  H01H85/055 ,  H01H85/10 ,  H01H85/11 ,  H01H85/12 ,  H01H85/18 ,  H01H85/04

CPC分类号： H01H85/055

摘要： A high voltage fuse for interrupting a wide range of currents and especially suited for low current interruption is disclosed. The fuse is comprised of a fuse element having a first and a second plurality of portions of reduced cross-sections. The second plurality of portions further comprise two or more parallel conducting paths some of which carry a portion of material which has a lower melting temperature than the melting temperature of the material of the fuse element. The parameters of the first and second plurality of reduced cross-section portions, the lower melting point material, and the fuse element itself are selected to adapt the fuse to provide proper protection for the various current conditions to which a high voltage transformer is subjected. The fuse element provides fast rupturing under short-circuit current conditions while also providing the characteristic of withstanding relatively high inrush current conditions. The fuse element further provides improved low current clearing ability for the fuse, and a fuse which responds quickly to through fault (secondary fault) conditions in a transformer.

摘要翻译： 公开了用于中断大范围电流并且特别适用于低电流中断的高压熔断器。 保险丝由具有减小的横截面的第一和第二多个部分的熔丝元件组成。 第二多个部分还包括两个或更多个平行的导电路径，其中一些导电路径具有比熔丝元件的材料的熔化温度低的熔化温度的一部分材料。 选择第一和第二多个减小横截面部分，下熔点材料和熔丝元件本身的参数以使熔丝适应于高压变压器经受的各种电流条件的适当保护。 保险丝元件在短路电流条件下提供快速断开，同时提供耐冲击电流条件相对较高的特性。 保险丝元件进一步提供了对熔断器的改善的低电流清除能力，以及通过变压器中的故障（次级故障）条件快速响应的保险丝。

公开(公告)号：US4638283A

公开(公告)日：1987-01-20

申请号：US799711

申请日：1985-11-19

申请人： Gerhard Frind ,  James J. Carroll ,  John H. Van Noy ,  John G. Leach ,  Radha K. Ranjan

发明人： Gerhard Frind ,  James J. Carroll ,  John H. Van Noy ,  John G. Leach ,  Radha K. Ranjan

IPC分类号： H01H85/042 ,  H01H85/38 ,  H01H85/04

CPC分类号： H01H85/38 ,  H01H85/042

摘要： An exothermically assisted electric fuse, having at least one exothermic body disposed in heat transfer relationship with at least a portion of each fusible element of the fuse, a triggering circuit for initiating an exothermic reaction in response to an overcurrent through the fuse, and a containment body partially enclosing the exothermic body for directing the heat energy released by the exothermic reaction. The containment body is disposed so as to confine and direct the heat energy in a direction which is substantially perpendicular to a plane containing the portion of the fusible element which is in heat transfer relationship with the exothermic body. In a preferred embodiment of such a fuse, the fusible element is wound around a support so that the fuse windings form the general shape of a cylinder, and the containment body is disposed so that the heat energy is directed in a radial direction with respect to the cylinder formed by the fuse windings. The exothermic body preferably comprises a two-part structure in which a mixture of boron and potassium perchlorate acts as a primer for a larger body of exothermic material formed from a mixture of aluminum and potassium perchlorate.

摘要翻译： 一种放热辅助电熔丝，其具有至少一个与保险丝的每个可熔元件的至少一部分热传递关系的放热体，用于响应于通过保险丝的过电流引发放热反应的触发电路， 身体部分地封闭放热体，用于引导放热反应释放的热能。 容纳体被设置成将热能限制在大致垂直于包含与放热体传热关系的可熔元件的部分的平面的方向上。 在这种保险丝的优选实施例中，可熔元件缠绕在支撑件上，使得保险丝绕组形成圆柱体的大致形状，并且容纳体被设置成使热能相对于 保险丝圈由圆筒形成。 放热体优选包括两部分结构，其中硼和高氯酸钾的混合物用作由高氯酸铝和高氯酸钾的混合物形成的更大体积的放热材料的底漆。

公开(公告)号：US4419651A

公开(公告)日：1983-12-06

申请号：US391772

申请日：1982-06-24

申请人： John G. Leach

发明人： John G. Leach

IPC分类号： H01H85/00 ,  H01H85/047 ,  H01H85/04

CPC分类号： H01H85/047 ,  H01H85/003

摘要： A high voltage fuse with an element operating at relatively high temperatures and having such element comprised of a metallic material which is highly susceptible to oxidation at such temperatures is disclosed. The fuse element has predetermined dimensions so as to have a predetermined time-current characteristic. The high voltage fuse has a sealed environment for housing the fuse element. The fuse element has a thickness dimension sufficiently great so that any oxide layer that may accumulate on the fuse element over a service period of 15 years does not significantly affect the predetermined time-current characteristic of the fuse element during the period.

摘要翻译： 公开了一种具有在较高温度下操作的元件的高电压保险丝，并且具有由在这样的温度下高度易于氧化的金属材料构成的元件。 保险丝元件具有预定的尺寸以具有预定的时间 - 电流特性。 高压保险丝具有用于容纳保险丝元件的密封环境。 熔丝元件的厚度尺寸足够大，使得在15年的使用期内可能积聚在熔丝元件上的任何氧化物层在该时间段内不会明显影响熔丝元件的预定时间电流特性。

公开(公告)号：US5406438A

公开(公告)日：1995-04-11

申请号：US248470

申请日：1994-05-24

申请人： Radhakrishnan Ranjan ,  William E. Lazenby ,  Robert E. Koch ,  Gerald J. Carlson ,  John G. Leach ,  Ronald E. Bennet

发明人： Radhakrishnan Ranjan ,  William E. Lazenby ,  Robert E. Koch ,  Gerald J. Carlson ,  John G. Leach ,  Ronald E. Bennet

IPC分类号： H01H9/00 ,  H01H39/00 ,  H01H85/042 ,  H01H85/46 ,  H02H3/02 ,  H01H37/76

CPC分类号： H02H3/021 ,  H01H85/042 ,  H01H85/46 ,  H01H2085/466 ,  H01H39/00 ,  H01H9/0072

摘要： An apparatus for triggering chemical augmented electrical fuses includes a light source which emits a light signal in the form of visible or infrared light energy upon receiving a signal from a control system, trigger signal source or other fuses. The light signal is coupled to a light detector by an optical coupling device such as a fiber optic cable. Upon receipt of the light signal, the light detector generates a signal which causes the application of electrical energy to exothermic material in a fuse, thereby detonating the material and causing interruption of current through the triggered fuse.

摘要翻译： 用于触发化学增强电熔丝的装置包括在从控制系统，触发信号源或其它保险丝接收信号时发出可见光或红外光能形式的光信号的光源。 光信号通过诸如光纤电缆的光耦合装置耦合到光检测器。 在光信号接收时，光检测器产生一个信号，该信号导致将电能施加到熔断器中的放热材料，从而引爆材料并导致通过触发熔丝的电流中断。

公开(公告)号：US4339742A

公开(公告)日：1982-07-13

申请号：US270561

申请日：1981-06-04

申请人： John G. Leach ,  Robert E. Koch

发明人： John G. Leach ,  Robert E. Koch

IPC分类号： H01H85/18 ,  H01H85/42

CPC分类号： H01H85/42 ,  H01H85/185

摘要： A high voltage fuse having mounted gas evolving members and method of forming such a fuse are disclosed. The high voltage fuse comprises, in part, a plurality of block shaped gas evolving members attached to a plurality of fuse elements, which, in turn, are wound about a supporting core. The high voltage fuse also has an electrically insulating casing in which is mounted the core having the wound fuse elements and the attached blocks of gas evolving members. The fuse casing is filled with a pulverulent arc quenching filler material. The block shaped gas evolving members have a narrow slit which allows the gas evolving members to be easily slipped over the fuse element so as to cover part or all of a transverse portion of the fuse. The gas evolving members are positioned over the fuse element at locations along the core so that the block type gas evolving members are arranged between adjacent portions of the ribs of the core. The block type gas evolving members are further positioned in desired locations by disposing the gas evolving members between the adjacent turns of the fusible elements. Positioning the gas evolving material blocks at their desired locations provides stationary boundaries and limits the movement of the gas evolving material during the filling of the fuse casing by the pulverulent arc quenching filler material.

摘要翻译： 公开了一种具有安装气体放出构件的高压熔断器和形成这种保险丝的方法。 高压熔断器部分地包括连接到多个熔丝元件的多个块状气体放出部件，这些熔丝元件又绕着支撑芯部缠绕。 高电压保险丝还具有电绝缘壳体，其中安装有具有缠绕的熔丝元件的核心和附着的气体放出构件块。 保险丝外壳上装有粉状电弧淬火填充材料。 块状气体放出构件具有狭窄的狭缝，其允许气体放出构件容易地滑过保险丝元件，以便覆盖保险丝的横向部分的一部分或全部。 气体放出构件位于沿着芯的位置处的熔丝元件上方，使得块状气体放出构件布置在芯的肋的相邻部分之间。 块状气体放出构件通过将气体放出构件设置在可熔元件的相邻匝之间而进一步定位在期望的位置。 将气体放出材料块定位在其所需位置处提供了固定的边界，并且通过粉末状电弧淬火填充材料限制了在熔断器壳体填充期间气体放出材料的移动。

公开(公告)号：US4319212A

公开(公告)日：1982-03-09

申请号：US251641

申请日：1981-04-06

申请人： John G. Leach

发明人： John G. Leach

IPC分类号： H01H85/18 ,  H01H85/42 ,  H01H85/04

CPC分类号： H01H85/185 ,  H01H85/42

摘要： A high voltage fuse comprised of a fuse element wrapped about a core, enclosed in a housing member, and surrounded by a granular quartz material is disclosed. The core has a plurality of cutouts along its outer surfaces having preselected dimensions relative to the width of a fuse element of such values as to assure that at least one cutout is interposed between adjacent turns of the fuse element. The interposed cutouts increase the creepage between the adjacent turns of the fuse element. The preselected dimensions of the cutouts relative to fuse-element width provide a single core that is capable of accommodating numerous types and different numbers of fuse elements. The core is also provided with a gas evolving material attached to the cutouts and separated from the fuse element by a predetermined amount to provide controlled release of arc-quenching gas, when arcing inside the fuse occurs.

摘要翻译： 公开了一种高压保险丝，包括围绕芯部缠绕的保险丝元件，封闭在外壳构件中并被颗粒状石英材料包围。 芯沿其外表面具有多个切口，其具有相对于熔丝元件的宽度的预定尺寸，以确保在保险丝元件的相邻匝之间插入至少一个切口。 插入的切口增加了保险丝元件的相邻匝之间的爬电距离。 切口相对于熔丝元件宽度的预选尺寸提供了能够容纳多种类型和不同数量的熔丝元件的单个芯。 芯还设置有气体放出材料，其连接到切口并且与保险丝元件分离预定量，以在熔断器内部产生电弧时提供灭弧气体的受控释放。

公开(公告)号：US07724122B2

公开(公告)日：2010-05-25

申请号：US11712177

申请日：2007-02-28

申请人： John G. Leach

发明人： John G. Leach

IPC分类号： H01H85/04 ,  H01H71/18 ,  H01H37/74 ,  H01H85/30 ,  H01H37/76

CPC分类号： H01H85/303 ,  H01H85/36

摘要： A fuse including a fuse housing having first and second electrical terminals, a movable partition made from an electrically conductive material movably disposed within the fuse housing, a fusible structure connected between the first electrical terminal and the movable partition, a conductor connected between the movable partition and the second electrical terminal, a biasing element acting on the movable partition to maintain the fusible structure in tension and for moving the movable partition upon melting of the fusible structure and an indicator connected between the movable partition and the second electrical terminal. The conductor, the movable partition and the fusible structure define an electrical path between the first and second electrical terminals and the indicator protrudes out of the second electrical terminal of the fuse housing upon melting of the fusible structure for providing visual indication of an interrupted condition of the fuse when subjected to a threshold current flowing therethrough.

摘要翻译： 一种保险丝，包括具有第一和第二电端子的保险丝壳体，由可移动地设置在保险丝壳体内的导电材料制成的可动隔板，连接在第一电端子和可动隔板之间的可熔结构，连接在可动隔板 和第二电端子，作用在可移动隔板上的偏置元件，以保持可熔结构处于张力状态，并且在可熔结构熔化时移动可移动隔板，以及连接在可移动隔板和第二电端子之间的指示器。 导体，可移动隔板和可熔结构在第一和第二电端子之间限定电路径，并且当熔丝熔化可熔结构时，指示器从保险丝外壳的第二电端子突出出来，以提供视觉指示中断状态 当熔断器经受流过其中的阈值电流时。

公开(公告)号：US20080117015A1

公开(公告)日：2008-05-22

申请号：US11712177

申请日：2007-02-28

申请人： John G. Leach

发明人： John G. Leach

IPC分类号： H01H85/36

CPC分类号： H01H85/303 ,  H01H85/36

摘要： A fuse including a fuse housing having first and second electrical terminals, a movable partition made from an electrically conductive material movably disposed within the fuse housing, a fusible structure connected between the first electrical terminal and the movable partition, a conductor connected between the movable partition and the second electrical terminal, a biasing element acting on the movable partition to maintain the fusible structure in tension and for moving the movable partition upon melting of the fusible structure and an indicator connected between the movable partition and the second electrical terminal. The conductor, the movable partition and the fusible structure define an electrical path between the first and second electrical terminals and the indicator protrudes out of the second electrical terminal of the fuse housing upon melting of the fusible structure for providing visual indication of an interrupted condition of the fuse when subjected to a threshold current flowing therethrough.

摘要翻译： 一种保险丝，包括具有第一和第二电端子的保险丝壳体，由可移动地设置在保险丝壳体内的导电材料制成的可动隔板，连接在第一电端子和可动隔板之间的可熔结构，连接在可动隔板 和第二电端子，作用在可移动隔板上的偏置元件，以保持可熔结构处于张力状态，并且在可熔结构熔化时移动可移动隔板，以及连接在可移动隔板和第二电端子之间的指示器。 导体，可移动隔板和可熔结构在第一和第二电端子之间限定电路径，并且当熔丝熔化可熔结构时，指示器从保险丝外壳的第二电端子突出出来，以提供视觉指示中断状态 当熔断器经受流过其中的阈值电流时。