Comprising Significant Fuse Link Or Element Structure Or Arrangement Patents (Class 337/159)
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Patent number: 8587401Abstract: A fuse includes an upper shell, a lower shell and a cavity formed by the upper shell and the lower shell; first and second conductors which are respectively disposed between the upper shell and the lower shell. The first ends of each conductors are disposed in the cavity and form a clearance. The second ends of the conductors extend out from the cavity. A conductive bar is welded to the first and second conductors to form a first weld line and a second weld line.Type: GrantFiled: April 28, 2011Date of Patent: November 19, 2013Assignee: BYD Company LimitedInventors: Zhiwei Tong, Qing Lai, Jianhua Zhu
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Patent number: 8471670Abstract: A fusible link unit includes a fuse busbar and a housing. The fuse busbar includes a first busbar having a first input connecting portion; a second busbar having a second input connecting portion; and a fusible element provided between the first busbar and the second busbar. The housing is provided with the fuse busbar. The fusible element is configured to melt down when a current of a predetermined value is conducted therethrough. The first input connecting portion and the second input connecting portion are formed into the same shape. The first and second input connecting portions are passed through inserting holes, which are provided on both end portions of the housing, and are projected outwards. The housing is formed symmetrical transversely.Type: GrantFiled: May 25, 2010Date of Patent: June 25, 2013Assignee: Yazaki CorporationInventor: Yusuke Matsumoto
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Patent number: 8339235Abstract: An electric component includes: an insulating housing; a conductive member inserted into the housing until hitting a stop provided by the housing, the conductive member configured to mate with a conductive portion of a device that mates with the electrical component, the mating device thereby applying a force to the conductive portion, the conductive member including a wall, the wall defining a projection that is at least substantially coplanar with the wall; and wherein the housing includes a catch that flexes when the conductive member is inserted into the housing to allow the projection to move past the catch so that the conductive member can hit the stop, at which point the catch unflexes into locking engagement with the projection.Type: GrantFiled: August 6, 2008Date of Patent: December 25, 2012Inventors: James J. Beckert, Stephen R. Shierry
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Patent number: 8289123Abstract: A fused conductor includes a first conductor portion, a second conductor portion, and a fuse element in electrical communication with the first and second conductor portions via at least one dual metal wire, the fuse element protected by a glass body bonded chemically to the dual metal wire.Type: GrantFiled: July 24, 2006Date of Patent: October 16, 2012Assignee: Littelfuse, Inc.Inventors: Stephen J. Whitney, Gordon Todd Dietsch, Christian Garcia, Daniel Onken, Janus Pagharion, Phil Shaw, Robert G. Swensen
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Patent number: 8258913Abstract: A fuse element includes a first conductive part and a second conductive part, and a fusible body which electrically connect the first conductive part and the second conductive part, and fuses when an overcurrent flows itself. The fusible body is formed in a plate shape. The fusible body has a first connection portion, a second connection portion and a fusing member, both ends of the fusing member being connected to the first connection portion and the second connection portion respectively. The fusing member is displaced from the first connection portion and the second connection portion in a first direction being intersect with a second direction in which the first and second connection portions are arranged.Type: GrantFiled: August 28, 2007Date of Patent: September 4, 2012Assignee: Yazaki CorporationInventor: Norio Matsumura
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Patent number: 8179224Abstract: The overcurrent protection structure according to the present invention mainly comprises a fusible fuse structure unit disposed in a coating, and the both ends of the fusible fuse structure unit extend outwardly beyond the coating and form a first electrode and a second electrode. In the manufacturing process, the gas-assisted injection molding process enables at least one space for accommodating gas disposed between the fusible fuse structure unit and the coating such that the heat generated by the electrically energized the fusible fuse structure unit will not dissipate through the heat conduction of the coating in order to ensure that it will blow at high temperature when reaching a specific current or a specific temperature and the circuit protection effect.Type: GrantFiled: April 17, 2008Date of Patent: May 15, 2012Inventor: Chun-Chang Yen
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Patent number: 8080861Abstract: A semiconductor device includes an electric fuse and first and second large area wirings for applying a voltage to the electric fuse. The electric fuse includes a fuse unit which includes an upper-layer fuse wiring, a lower-layer fuse wiring, and a via connecting the upper-layer fuse wiring and the lower-layer fuse wiring, an upper-layer lead-out wiring which connects the upper-layer fuse wiring and the first large area wiring and has a bent pattern, and a lower-layer lead-out wiring which connects the lower-layer fuse wiring and the second large area wiring and has a bent pattern.Type: GrantFiled: October 7, 2009Date of Patent: December 20, 2011Assignee: Renesas Electronics CorporationInventors: Hiroshi Tsuda, Yoshitaka Kubota, Hiromichi Takaoka
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Patent number: 8076760Abstract: The invention includes semiconductor fuse arrangements containing an electrically conductive plate over and in electrical contact with a plurality of electrically conductive links. Each of the links contacts the electrically conductive plate as a separate region relative to the other links, and the region where a link makes contact to the electrically conductive plate is a fuse. The invention also includes methods of forming semiconductor fuse arrangements.Type: GrantFiled: July 8, 2010Date of Patent: December 13, 2011Assignee: Micron Technology, Inc.Inventor: H. Montgomery Manning
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Patent number: 7994892Abstract: Embodiments of the invention are related to oxidative opening switches and related methods, amongst other things. In an embodiment, the invention includes a switch assembly including a first terminal, a second terminal, and an oxidative switch element in electrical communication with the first terminal and the second terminal, the switch element comprising a conductive material and an oxidizer, the switch element configured to interrupt electrical communication between the first terminal and the second terminal as a result of an oxidation reaction between the conductive material and the oxidizer. In an embodiment, the invention includes a fast opening switch for pulse power applications. Other aspects and embodiments are provided herein.Type: GrantFiled: June 20, 2008Date of Patent: August 9, 2011Inventors: Richard F. Johnson, Randy Berg, Stanley E. Wood
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Patent number: 7986212Abstract: A fuse includes: a first connecting terminal to be connected to a power source; a second connecting terminal to be connected to a load; a third connecting terminal to be connected to a relay control circuit; a fuse element having one end to be connected to the first connecting terminal; and a semiconductor relay directly mounted on the second connecting terminal. The semiconductor relay is a relay circuit switching between conducting and non-conducting states of a connection between its own drain and source electrodes, according to control signals inputted to the own gate electrode. The drain, source and gate electrodes are electrically connected to the other end of the fuse element, the second connecting terminal and the third connecting terminal, respectively. The first to third connecting terminals, the fuse element and the semiconductor relay are formed in an integral structure with a mold resin sealing portion.Type: GrantFiled: April 11, 2008Date of Patent: July 26, 2011Assignee: Yazaki CorporationInventors: Masahiro Ueno, Katsuyuki Iwasaki, Teppei Doi, Hiromichi Hanaoka
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Patent number: 7969275Abstract: A fuse assembly includes a main component partially encased in a protective sheath. The main component includes a pair of connectors formed of an electrically conductive material to allow the fuse assembly to be electrically connected into an electric vehicle drive system. A fusible link is electrically connected between the connectors and is preferably encased in the protective sheath. The fusible link reacts to current flowing through the fuse assembly in excess of a predetermined current for a predetermined time, as is well known to those skilled in the art.Type: GrantFiled: November 14, 2008Date of Patent: June 28, 2011Assignee: EnerDel, Inc.Inventor: Chad Hartzog
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Patent number: 7965168Abstract: A fuse is provided that includes a housing and a first lead and a second lead. The fuse further includes a fuse element having a current capacity. The fuse element forms a part of an electrical pathway between the first lead and the second lead. The fuse also includes a switch unit in communication with the housing and in series with the fuse element. The switch unit has an open state and a closed state. When the switch unit is in the closed state, the electrical pathway is connected to form a closed pathway between the first lead and the second lead, and when the switch unit is in the open state, the electrical pathway is disconnected to provide an open circuit between the first lead and the second lead.Type: GrantFiled: October 13, 2009Date of Patent: June 21, 2011Assignees: Sony Corporation, Sony Electronics Inc.Inventor: Leonard D. Nicoletti, III
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Patent number: 7924137Abstract: A fuse includes a fusible element and a body member encased within a heat-resistant housing. The fusible element is configured to open an electrical circuit coupled to a storage battery in response to an over-current in the electrical circuit. The housing is configured to contain an arc generated by the fusible element in response to the over-current and to shield the arc and the fusible element from ambient particles. Thus, the fuse is ignition protected. The body member includes an insulating material configured to interrupt the arc. The housing includes an opening configured to receive a terminal of the storage battery or a terminal of a mounting plate. An insulating material disposed about a first end of the mounting plate terminal is configured to electrically isolate the fuse and a power supply cable in the electrical circuit from the mounting plate terminal.Type: GrantFiled: September 10, 2007Date of Patent: April 12, 2011Assignee: Cooper Technologies CompanyInventors: Naeem Rahman, Anthony Czyz, Cuong Ha
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Publication number: 20110074538Abstract: An electrical fuse structure is disclosed. The electrical fuse structure includes: a fuse element disposed on surface of a semiconductor substrate; an anode electrically connected to one end of the fuse element; and a cathode electrically connected to another end of the fuse element, wherein no silicide is formed on at least part of the cathode of the electrical fuse structure.Type: ApplicationFiled: September 25, 2009Publication date: March 31, 2011Inventors: Kuei-Sheng Wu, Chang-Chien Wong, Tzu-Chuan Huang
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Patent number: 7864023Abstract: A fuse incorporates a fusible element assembly and an auxiliary fusible element assembly in a solid arc extinguishing material configuration. The fusible element assembly has a first operating characteristic and the auxiliary fusible element has a second operating characteristic different than the first operating characteristic.Type: GrantFiled: July 4, 2010Date of Patent: January 4, 2011Assignee: S&C Electric CompanyInventors: Glenn R. Borchardt, Michael G. Ennis, Jorge R. Montante, Martin A. Warszawa
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Patent number: 7837745Abstract: A means and method for rendering high energy density cells safe in compliance with transportation requirements, with the incorporation of a cell fusible terminal which is added on or incorporated within the cell terminals to prevent over current and hazards from developing due to external short circuits. As a result, cells made in accordance with the method of the present invention can be shipped by common carriers even though they are classified as hazardous materials and can be readily used and normally discharged with such fusible link element thereon. The fusible terminal comprises a non conductive base element upon which is mounted a fusible link element and wherein the non-conductive or insulative base element comprises means for connection to a terminal of the cell or battery and to an external component.Type: GrantFiled: April 24, 2007Date of Patent: November 23, 2010Assignee: International Battery, Inc.Inventors: Joseph Barella, Wayne Andruk
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Publication number: 20100245022Abstract: A reflowable thermal fuse includes a conduction element with first and second ends, disposed within a housing. The reflowable thermal fuse also includes an elastic element disposed within the housing and adapted to apply force on the conduction element in an activated state of the reflowable thermal fuse. A restraining element is utilized to secure the elastic element and prevent the elastic element from applying force on the conduction element in an installation state of the reflowable thermal fuse. Application of an activating current through the restraining element causes the restraining element to break and thereby release the elastic element and place the reflowable thermal fuse in the activated state.Type: ApplicationFiled: March 24, 2009Publication date: September 30, 2010Applicant: Tyco Electronics CorporationInventors: Matthew P. Galla, Jianhua Chen, Martyn A. Matthiesen
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Publication number: 20100207716Abstract: The overcurrent protection structure according to the present invention mainly comprises a fusible fuse structure unit disposed in a coating, and the both ends of the fusible fuse structure unit extend outwardly beyond the coating and form a first electrode and a second electrode. In the manufacturing process, the gas-assisted injection molding process enables at least one space for accommodating gas disposed between the fusible fuse structure unit and the coating such that the heat generated by the electrically energized the fusible fuse structure unit will not dissipate through the heat conduction of the coating in order to ensure that it will blow at high temperature when reaching a specific current or a specific temperature and the circuit protection effect.Type: ApplicationFiled: April 17, 2008Publication date: August 19, 2010Inventor: Chun-Chang Yen
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Patent number: 7773368Abstract: A fuse incorporates a fusible element assembly and an auxiliary fusible element assembly in a solid arc extinguishing material configuration. The fusible element assembly has a first operating characteristic and the auxiliary fusible element has a second operating characteristic different than the first operating characteristic. An installation adapter may be used to adapt a fuse to a non-standard mounting for the fuse. The installation adapter may include first and second adapter members that secure to the fuse to provide contacts having an appropriate spatial relationship to engage the non-standard mounting. A fuse and an installation adapter may be packaged as a kit.Type: GrantFiled: April 9, 2007Date of Patent: August 10, 2010Assignee: S&C Electric CompanyInventors: Glenn R. Borchardt, Michael G. Ennis, Jorge R. Montante, Martin A. Warszawa
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Patent number: 7772680Abstract: The invention includes semiconductor fuse arrangements containing an electrically conductive plate over and in electrical contact with a plurality of electrically conductive links. Each of the links contacts the electrically conductive plate as a separate region relative to the other links, and the region where a link makes contact to the electrically conductive plate is a fuse. The invention also includes methods of forming semiconductor fuse arrangements.Type: GrantFiled: August 18, 2005Date of Patent: August 10, 2010Assignee: Micron Technology, Inc.Inventor: H. Montgomery Manning
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Publication number: 20100164677Abstract: A fuse has a base and multiple wires. The base is an insulator and has a top surface and multiple contact plates. The contact plates are mounted separately on the top surface of the base. The wires are high density conductive alloy including Al 60˜90 wt %, Mg 22˜30 wt %, Si 1˜3 wt % and Cu 1˜3 wt % and connect the contact plates in series. Since the wires are directly heated, response time, sensitivity, power waste and heating resistor damage problems are solved and because the wires are high density conductive alloy that is nearly independent of environmental temperature, the temperature dependency, installation position limitation and leakage current problems are also solved.Type: ApplicationFiled: December 29, 2008Publication date: July 1, 2010Inventor: Chin-Chi Yang
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Patent number: 7696854Abstract: A heavy current coupling that includes an electrically conductive elastic fastening and fuse element supported by the housing. The fastening and fuse element is configured to electrically connect first and second contacts, with the first and second contacts being spaced from one another. Wherein the fastening and fuse element burns through when a predetermined maximum current is exceeded, thereby interrupting the electrical connection between the first and second contacts.Type: GrantFiled: October 12, 2006Date of Patent: April 13, 2010Assignee: Amphenol Tuchel Electronics GmbHInventors: Henning Rittstieg, Wolfgang Langhoff
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Patent number: 7659804Abstract: A fuse for a high voltage/high current application, such as a hydro-electric vehicle (“HEV”) application is provided. The fuse employs a variety of arc quenching features to handle a large amount of arcing energy that is generated when such fuse is opened due to a fuse opening event. In one embodiment, an insulative substrate, such as a melamine substrate, is metallized with a fuse element. The fuse element extends to multiple surfaces of the substrate. A fuse opening portion of the element is located so that the arcing energy is forced to travel along multiple insulative planes, increasing an impedance across the opening of the element and decreasing the likelihood of a sustained arc. Also, the substrate and element are disposed in a sealed housing, which is packed in one embodiment with an arc quenching material, such as sand.Type: GrantFiled: September 15, 2005Date of Patent: February 9, 2010Assignee: Littelfuse, Inc.Inventors: Edwin J. Harris, Jeffrey J. Ribordy, William P. Brown, John Adamczyk, Douglas Fischer, Gregory Stumpo
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Patent number: 7637781Abstract: A hinge section including bending sections at both side edges of a band plate section is provided in center of a busbar. On both sides of the hinge section, two fuse circuit constituting plate sections are integrally formed to be linked thereto. Two resin housings are assembled by insert molding to the respective fuse circuit constituting plate sections, thus forming two bodies. The two bodies are pivoted in the same direction at the bending sections, and engagement units are locked, thus constituting a fusible link unit having a U-shaped plan view. The two bodies are engaged with each other in vicinity areas of the hinge section in the opposed surfaces of the opposed resin housing when the two bodies are pivoted. The fusible link unit also includes recessed and projected guides guiding the two resin housings to proper positions.Type: GrantFiled: October 29, 2008Date of Patent: December 29, 2009Assignee: Yazaki CorporationInventors: Yusuke Matsumoto, Norihiro Ohashi
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Patent number: 7639112Abstract: A fuse is provided that includes a housing and a first lead and a second lead. The fuse further includes a fuse element having a current capacity. The fuse element forms a part of an electrical pathway between the first lead and the second lead. The fuse also includes a switch unit in communication with the housing and in series with the fuse element. The switch unit has an open state and a closed state. When the switch unit is in the closed state, the electrical pathway is connected to form a closed pathway between the first lead and the second lead, and when the switch unit is in the open state, the electrical pathway is disconnected to provide an open circuit between the first lead and the second lead.Type: GrantFiled: April 25, 2007Date of Patent: December 29, 2009Assignees: Sony Corporation, Sony Electronics Inc.Inventor: Leonard Nicoletti, III
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Patent number: 7626483Abstract: A self-recovering current limiting fuse protecting a secondary battery having a high rated voltage thanks to its improved breakdown voltage, expanding the application range, shortening the charging time, and realizing maintenance-free. The self-recovering current limiting fuse is made by fluid-dispersing solid conductive particles into a liquid matrix between electrodes. A current limiting operation through evaporation/spreading of the solid conductive particles and a conducting state brought about through collection of the solid conductive particles between the electrodes by dielectrophoretic force of the solid conductive particles are realized repeatedly, and a current limiting operation through evaporation/spreading of the solid conductive particles by overcurrent is realized.Type: GrantFiled: August 10, 2005Date of Patent: December 1, 2009Assignee: Kyushu Institute of TechnologyInventors: Shinya Ohtsuka, Masayuki Hikita
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Patent number: 7612647Abstract: A plurality of fuse circuits are layered with a space therebetween in a housing. A fusible portion of one of the layered fuse circuits is offset from a fusible portion of an adjacent one of the layered fuse circuits perpendicularly to a direction in which the fuse circuits are layered. A connection plate of one of the layered fuse circuits is offset from a connection plate of an adjacent one of the layered fuse circuits perpendicularly to a direction in which the fuse circuits are layered. The connection plate has a U-shaped extended portion.Type: GrantFiled: September 15, 2006Date of Patent: November 3, 2009Assignee: Yazaki CorporationInventors: Shinya Onoda, Toshiharu Kudo, Yoshihiko Nakahama, Takanori Kawai
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Patent number: 7592892Abstract: A fusible link unit includes a bus bar adapted to be connected to a battery without interposing a fuse between the bus bar and the battery, and a heat resistant insulating sheet which covers at least an upper edge portion of the bus bar. The fusible link unit is adapted to be accommodated inside an in-vehicle electrical connection box.Type: GrantFiled: March 30, 2007Date of Patent: September 22, 2009Assignees: Sumitomo Wiring Systems, Ltd., Pacific Engineering Corp.Inventors: Katsuya Ito, Akira Hirata, Manabu Ohta
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Patent number: 7554432Abstract: A fuse is provided in a circuit, such that the fuse and an electric device in the circuit are thermally coupled to one another. The generation of the amount of heat by the electric device causes a fusible material in the fuse to melt. In this manner, the current terminal path of the electric device is interrupted.Type: GrantFiled: May 25, 2006Date of Patent: June 30, 2009Assignee: Infineon Technologies AGInventors: Alfons Graf, Martin Maerz, Martin Saliternig
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Patent number: 7545253Abstract: An electronic fuse for an integrated circuit and a method of fabrication thereof are presented. The electronic fuse has a first terminal portion and a second terminal portion interconnected by a fuse element. The fuse element has a convex upper surface and a lower surface with a radius of curvature at a smallest surface area of curvature less than or equal to 100 nanometers. Fabricating the electronic fuse includes forming an at least partially freestanding dielectric spacer above a supporting structure, and then conformably forming the fuse element of the fuse over at least a portion of the freestanding dielectric spacer, with the fuse element characterized as noted above. The dielectric spacer may remain in place as a thermally insulating layer underneath the fuse element, or may be removed to form a void underneath the fuse element.Type: GrantFiled: May 28, 2008Date of Patent: June 9, 2009Assignee: International Business Machines CorporationInventors: Louis Lu-Chen Hsu, Jack A. Mandelman, William R. Tonti, Chih-Chao Yang
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Patent number: 7535332Abstract: A protective element has a heat-generating member and a low-melting metal member on a substrate, in which the low-melting metal member is blown out by the heat generated by the heat-generating member, wherein at least two strips of low-melting metal member are provided as the low-melting metal member, for example, between the pair of electrodes that pass current to the low-melting metal member, so that the lateral cross section of at least part of the low-melting metal member is substantially divided into at least two independent cross sections. This protective element has a shorter and more consistent operating time. It is preferable here to provide at least two strips of low-melting metal member between the pair of electrodes that pass current to the low-melting metal member. It is also preferable to provide one strip of low-melting metal member having a slit in its center, between the pair of electrodes that pass current to the low-melting metal member.Type: GrantFiled: December 5, 2003Date of Patent: May 19, 2009Assignee: Sony Chemicals CorporationInventors: Yuji Furuuchi, Hisaya Tamura, Masahiro Matsuyoshi, Kazutaka Furuta, Masami Kawazu
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Patent number: 7515030Abstract: The invention relates to a fusible element provided with a flat insulating body and a pair of contacts which are projected therefrom and whose sections receivable in the reception areas of the insulating body are connected to each other by a fusing conductor wherein at least one reception area and the contact section associated thereto comprise form-fitting connectors corresponding to each other. The inventive fusible element makes it possible to simplify assembling of the individual elements forming it without affecting the quality and without additional costs.Type: GrantFiled: December 13, 2004Date of Patent: April 7, 2009Assignee: Littelfuse Automotive GmbHInventors: Henning Schulte, Jürgen Scheele
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Patent number: 7508295Abstract: An electric device generates a predetermined amount of heat in the event of a malfunction. The electric device is protected from overheating in that it is arranged, with a fuse in a circuit, such that the fuse and the electric device are thermally coupled to one another, so that the generation of the amount of heat by the electric device causes a material in the fuse to melt. In this manner, the current terminal path of the electric device is interrupted.Type: GrantFiled: May 25, 2006Date of Patent: March 24, 2009Assignee: Infineon Technologies AGInventors: Alfons Graf, Martin Maerz, Martin Saliternig
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Patent number: 7504925Abstract: An electric device generates a predetermined amount of heat in the event of a malfunction. The electric device is protected from overheating in that it is arranged, with a fuse in a circuit, such that the fuse and the electric device are thermally coupled to one another, so that the generation of the amount of heat by the electric device causes a fusible material in the fuse to melt. In this manner, the current terminal path of the electric device is interrupted.Type: GrantFiled: May 25, 2006Date of Patent: March 17, 2009Assignee: Infineon Technologies AGInventors: Alfons Graf, Martin Maerz, Martin Saliternig
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Patent number: 7460003Abstract: An electronic fuse for an integrated circuit and a method of fabrication thereof are presented. The electronic fuse has a first terminal portion and a second terminal portion interconnected by a fuse element. The fuse element has a convex upper surface and a lower surface with a radius of curvature at a smallest surface area of curvature less than or equal to 100 nanometers. Fabricating the electronic fuse includes forming an at least partially freestanding dielectric spacer above a supporting structure, and then conformably forming the fuse element of the fuse over at least a portion of the freestanding dielectric spacer, with the fuse element characterized as noted above. The dielectric spacer may remain in place as a thermally insulating layer underneath the fuse element, or may be removed to form a void underneath the fuse element.Type: GrantFiled: March 9, 2006Date of Patent: December 2, 2008Assignee: International Business Machines CorporationInventors: Louis Lu-Chen Hsu, Jack A. Mandelman, William R. Tonti, Chih-Chao Yang
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Patent number: 7439844Abstract: A cord type thermal fuse, comprising a fuse core produced by winding a conductor meltable at a predetermined temperature on an insulating core member continuous in the length direction, and an insulating cover covering the outer periphery of the fuse core, wherein the conductor can be cut by expanding the insulating core member at a predetermined temperature and/or by contracting the insulating cover at the predetermined temperature.Type: GrantFiled: June 13, 2003Date of Patent: October 21, 2008Assignee: Kurabe Industrial Co., Ltd.Inventors: Yasuhiro Hase, Hiroshi Nozue
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Patent number: 7429780Abstract: A semiconductor device includes a fuse circuit, which includes a first conductive region and a second conductive region. The first conductive region has a multi-layered structure, and the second conductive region has a less layered structure than the first conductive region.Type: GrantFiled: September 30, 2003Date of Patent: September 30, 2008Assignee: Oki Electric Industry Co., Ltd.Inventor: Katsuhiro Hisaka
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Patent number: 7425885Abstract: Electrical fuse devices are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a base resin host. The percentage by weight of the conductive powder(s), conductive fiber(s), or a combination thereof is between about 20% and 50% of the weight of the conductive loaded resin-based material. The micron conductive powders are formed from non-metals, such as carbon, graphite, that may also be metallic plated, or the like, or from metals such as stainless steel, nickel, copper, silver, that may also be metallic plated, or the like, or from a combination of non-metal, plated, or in combination with, metal powders. The micron conductor fibers preferably are of nickel plated carbon fiber, stainless steel fiber, copper fiber, silver fiber, aluminum fiber, or the like.Type: GrantFiled: May 4, 2005Date of Patent: September 16, 2008Assignee: Integral Technologies, Inc.Inventor: Thomas Aisenbrey
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Patent number: 7420453Abstract: A fusible link unit is provided with a first alternator terminal including a screw hole configured to be connected with an opposite terminal with a screw, a second alternator terminal including a connector configured to be connected with an opposite connector, a battery terminal one or more load terminals respectively including one or more fuse links, wherein the first alternator terminal, the second alternator terminal, the battery terminal, the load terminals and the fuse links are mutually connected and unitized in a fuse unit.Type: GrantFiled: December 22, 2004Date of Patent: September 2, 2008Assignee: Yazaki CorporationInventors: Norio Matsumura, Shinya Onoda
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Publication number: 20080150671Abstract: A programmable fuse and fuse panel are described. Unlike conventional fuses and fuse panels, the trip values of the fuses of the panel —i.e., the current values at which the fuse trips—are field programmable. One of many advantages includes the ability to adaptively set the trip value of a fuse—depending on the operating needs of a load device—without having to physically exchange the fuse. In an embodiment, electronic fuses are used.Type: ApplicationFiled: December 5, 2007Publication date: June 26, 2008Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Dan Anders Lindqvist, Per Holmstrom, Anders N. Svensson
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Publication number: 20080030294Abstract: A fuse system has both a non-serviceable fuse and a fuse terminal system for selectively installing a serviceable fuse. When installed, the serviceable fuse provides a current flow path parallel to the non-serviceable fuse.Type: ApplicationFiled: July 10, 2007Publication date: February 7, 2008Inventor: Andrew J. Jozwiak
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Patent number: 7323965Abstract: In the present invention, a physical and chemical property of thermosensitive material is noted in selecting and using thermosensitive material to provide a noble and improved thermal fuse using thermosensitive material. To achieve this object, the present thermal fuse includes: a thermosensitive material formed of thermoplastic resin fusing at a prescribed temperature; a cylindrical enclosure accommodating the thermosensitive material; a first lead member attached at one opening of the enclosure, forming a first electrode; a second lead member attached at the other opening of the enclosure, forming a second electrode; a movable conductive member accommodated in the enclosure and engaged with the thermosensitive material; and a spring member accommodated in the enclosure, and pressed against and thus acting on the movable conductive member. When the thermosensitive material fuses at an operating temperature an electrical circuit between the first and second electrodes is switched.Type: GrantFiled: April 22, 2003Date of Patent: January 29, 2008Assignee: NEC SCHOTT Components CorporationInventor: Tokihiro Yoshikawa
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Patent number: 7320171Abstract: A fuse component (1) includes a hollow body (2) which is formed from a tubular wall that encloses an inner area (5) and which has two open faces that are situated opposite one another. The fuse component also includes a fuse-element (4) which extends inside the inner area (5) between both faces of the hollow body (2) and two contact caps (3) each provided with a bottom (7) and lateral walls (8) connected thereto. Two end section (10) of a conductor of the fuse-element (4) are led out of the inner area (5) through the faces and around the wall of the hollow body (2). The end sections (10) of the conductor of the fuse element (4) are fastened by an adhesive bond (11) so that the surfaces abutting the inner area (5) are essentially free from organic materials. The end sections (10) of the conductor are preferably fastened to a conductive plastic that, in turn, fastens the contact caps (3) to the outer wall (9) of the hollow body (2).Type: GrantFiled: March 4, 2002Date of Patent: January 22, 2008Assignee: Wickmann-Werke GmbHInventors: André Jöllenbeck, Frank Althoff, Karin Koch, Ute Lehnhardt
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Patent number: 7312688Abstract: A fuse element strip with a central metallic section having a part with a high melting point and a part with a low melting point embedded in the high melting point part, and two lateral metallic sections with a high melting point. Each lateral section is joined to the high melting point part of the central section by a weld of fused material, and the joined sections have the same thickness so that the strip has three coplanar sections. The high melting point and low melting point parts of the central metallic section alloy at the low melting point causing the strip to melt at the melting temperature of the alloy.Type: GrantFiled: September 20, 2002Date of Patent: December 25, 2007Assignee: Metalor Technologies International S.A.Inventors: Brian Ely, Gaël Arnaud
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Patent number: 7292130Abstract: A fusible link adapted to be connected to a battery terminal and a compact and thin battery fuse unit that contains the fusible link and battery terminal. The link, formed by punching out an electrically conductive metallic plate, includes an input side connecting-section, an output side connecting-section, a fusible section having a narrow width and provided between the input and output side connecting-sections, and a resin section enclosing the fusible section. Coupling portions between the fusible section and the input and output side connecting-sections are molded in the resin section. The input and output side connecting-sections are arranged on the angled positions with respect to the fusible section. The fusible link and a battery terminal connected to the input side connecting-section of the fusible link are contained in a casing so that arc portions of the battery terminal are exposed from the casing. The arc portions engage a battery post.Type: GrantFiled: October 27, 2004Date of Patent: November 6, 2007Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Shunji Taga, Masayoshi Nakamura
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Patent number: 7286037Abstract: A protective element with improved spherical segmentation performance during the melting of a low-melting metal member, has a heat-generating member and a low-melting metal member on a substrate, in which the low-melting metal member is heated and blown out by the heat generated by the heat-generating member. There is a region in which the low-melting metal member is suspended over the underlying base (such as an insulating layer), and when S (?m2) is the surface area of a lateral cross section of the low-melting metal member 4 between a pair of low-melting metal member electrodes 3a and 3b or 3b and 3c sandwiching the region, and H (?m) is the height at which the suspended region is suspended, then the relationship H/S?5×10?5 is satisfied. It is preferable here that the upper surfaces of both of the pair of low-melting metal member electrodes protrude beyond the upper surface of the underlying insulating layer.Type: GrantFiled: December 5, 2003Date of Patent: October 23, 2007Assignees: Sony Corporation, Sony Chemical and Information Device CorporationInventor: Yuji Furuuchi
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Patent number: 7209027Abstract: A fuse structure is described. The fuse structure includes a first region adapted to be coupled to a voltage source, a second region adapted to be coupled to a ground, and a current flow region disposed between the first and second regions. The current flow region has a configuration that causes a void to be opened at a point of localized heating due to current crowding within the current flow region and that causes the void to propagate across the current flow region.Type: GrantFiled: August 31, 2005Date of Patent: April 24, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Stan E. Leigh, Tom P. Abadilla, Donald W. Schulte, Terry McMahon
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Patent number: 7199697Abstract: An alloy type thermal fuse is provided in which a ternary Sn—In—Bi alloy is used, excellent overload characteristic and dielectric breakdown characteristic are attained, the insulation stability after an operation can be sufficiently assured, and a fuse element can be easily thinned. A fuse element having an alloy composition in which Sn is larger than 25% and 60% or smaller, Bi is larger than 12% and 33% or smaller, and In is 20% or larger and smaller than 50% is used.Type: GrantFiled: September 4, 2003Date of Patent: April 3, 2007Assignee: Uchihashi Estec Co., Ltd.Inventor: Yoshiaki Tanaka
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Patent number: 7173510Abstract: A thermal fuse includes a fusible alloy including tin, a couple of lead conductors connected to both ends of the fusible alloy, respectively, and a surface layer on the lead conductors, respectively. The surface layer is made of tin or alloy including tin as main substance, and has a thickness not greater than 14 ?m. The thermal fuse has a stable fusing temperature.Type: GrantFiled: July 28, 2003Date of Patent: February 6, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Atsushi Kono, Kenji Senda, Tatsuya Wada
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Patent number: 7170387Abstract: A fuse structure is described. The fuse structure includes a first region adapted to be coupled to a voltage source, a second region adapted to be coupled to a ground, and a current flow region disposed between the first and second regions. The current flow region has a configuration that causes a void to be opened at a point of localized heating due to current crowding within the current flow region and that causes the void to propagate across the current flow region.Type: GrantFiled: August 31, 2005Date of Patent: January 30, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Stan E. Leigh, Tom P. Abadilla, Donald W. Schulte, Terry McMahon