Fusible Link Or Element Structure Or Material Patents (Class 337/290)
  • Patent number: 11270861
    Abstract: Disclosed are various protection devices and associated methods. In some embodiments, a protection device may include a fuse assembly having a fusible link extending between a first lead end and a second lead end, and a first lead extending from the first lead end and a second lead extending from the second lead end. The protection device may further include a body including a first section coupleable with a second section, wherein the first and second sections define a central cavity housing the fusible link. The first section may include an interior face operable to engage an opposite interior face of the second section, an engagement member extending away from the interior face towards the second section, and an engagement channel adjacent the engagement member, the engagement channel operable to receive a corresponding engagement member of the second section.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: March 8, 2022
    Assignee: Littelfuse, Inc.
    Inventors: Werner Johler, Arnel Ramos, Conrado Sagun De Leon, Joshua Miles Felicilda
  • Patent number: 11251009
    Abstract: A fuse housing for safe outgassing of a fuse is disclosed. The fuse housing features labyrinth walls disposed at opposing sides of the fuse housing. The labyrinth walls feature serpentine paths for the flow of outgassing material. At an end of the serpentine paths which is farthest away from a fuse element are vent channels. The vent channels are narrower in depth than that of the serpentine paths of the labyrinth walls, facilitating a suctioning effect during outgassing. Conductive material deposits along the serpentine paths so that the fuse maintains a high OSR rating. By directing and controlling the outflow of gases, the fuse housing is able to reduce the temperature of the gases produced. The fuse housing is also able to reduce the physical and observable effects of outgassing.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: February 15, 2022
    Assignee: Littelfuse, Inc.
    Inventors: Engelbert Hetzmannseder, Robert Gawrylo
  • Patent number: 10978267
    Abstract: A power fuse includes a housing, first and second conductive terminals extending from the housing, and at least one fatigue resistant fuse element assembly connected between the first and second terminals. The fuse element assembly includes at least a first conductive plate and a second conductive plate respectively connecting the first and second conductive terminals, and a plurality of separately provided wire bonded weak spots interconnecting the first conductive plate and the second conductive plate.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: April 13, 2021
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Robert Stephen Douglass, Ramdev Kanapady
  • Patent number: 10903032
    Abstract: A fuse includes an outer cartridge body, an inner cartridge body provided inside the outer cartridge body, a fuse core provided inside the inner cartridge body, two inner copper bushes provided at and covering two open ends of the outer cartridge body, and two outer copper bushes provided at and covering the two inner copper bushes and two open ends of the outer cartridge body. One end of one inner copper bush is a first open end, and the other end is a first closed end. An end face of the first closed end has a first opening. The first open end of the inner copper bush and the outer cartridge body form an interference fit. An end of the fuse core extends and passes through the first opening, and is fixed to the end face of the first closed end.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: January 26, 2021
    Assignee: GROUP TALENTS LIMITED
    Inventor: Koon Yui Leung
  • Patent number: 10593495
    Abstract: A fuse element comprises a low melting point metal layer, a first high melting point metal layer having a higher melting point than a melting point of the low melting point metal layer, and a restricting portion including a high melting point material having a higher melting point than a melting point of the low melting point metal layer and configured to restrict flow of the low melting point metal or deformation of a layered body constituted by the first high melting point metal layer and the low melting point metal layer.
    Type: Grant
    Filed: June 4, 2016
    Date of Patent: March 17, 2020
    Assignee: DEXERIALS CORPORATION
    Inventors: Yoshihiro Yoneda, Yuji Furuuchi, Kazuyuki Sakakibara
  • Patent number: 10536022
    Abstract: An electrical combination. The electrical combination comprises a battery pack configured to be interfaced with a hand held power tool, a control component, and a semiconducting switch. The transfer of power from the battery pack to the hand held power tool is controlled by the control component and the switch based on one of a battery pack state of charge and a respective state of charge of one of a plurality of battery cells. A discharge current of the battery pack is regulated based on the switch being controlled into one of a first state and a second state by the control component to selectively enable the transfer power from the plurality of battery cells to the hand held power tool.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: January 14, 2020
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: Todd W. Johnson, Dennis J. Grzybowski, Mark A. Kubale, Jay J. Rosenbecker, Karl F. Scheucher, Gary D. Meyer, Jeffrey M. Zeiler, Kevin L. Glasgow
  • Patent number: 10393378
    Abstract: A glow plug is described, having a body, a glow pin which protrudes from a first end of the body, and an inner pole which protrudes from a second end of the body and is electrically connected to the glow pin. A section of the inner pole that protrudes out of the body has an embossed structure for improving the mechanical and electrical connection to a plug connector. A method for producing a glow plug is also disclosed.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: August 27, 2019
    Assignee: BorgWarner Ludwigsburg GmbH
    Inventors: Damir Volarevic, Tomislav Soldo, Volker Dezius
  • Patent number: 9007164
    Abstract: The present invention provides a complex type fusible link which includes an insulative block base including a plurality of cavities; a conductive connecting plate which is integrally embedded in the insulative block base, a part of the conductive connecting plate being exposed to at least one of the cavities; a plurality of fusible elements each of which is accommodated in corresponding one of the cavities and includes a first end which is connected to the part of the conductive connecting plate and a second end; and a plurality of terminals each of which is integrally embedded in the insulative block base and includes a first end which is connected to the second end of corresponding one of the fusible elements and a second end which is exposed from the insulative block base.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: April 14, 2015
    Assignee: Yazaki Corporation
    Inventors: Masashi Iwata, Norio Matsumura, Tatsuya Aoki, Kenya Takii
  • Patent number: 8994489
    Abstract: Some embodiments include a fuse having a tungsten-containing structure directly contacting an electrically conductive structure. The electrically conductive structure may be a titanium-containing structure. An interface between the tungsten-containing structure and the electrically conductive structure is configured to rupture when current through the interface exceeds a predetermined level. Some embodiments include a method of forming and using a fuse. The fuse is formed to have a tungsten-containing structure directly contacting an electrically conductive structure. An interface between the tungsten-containing structure and the electrically conductive structure is configured to rupture when current through the interface exceeds a predetermined level. Current exceeding the predetermined level is passed through the interface to rupture the interface.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: March 31, 2015
    Assignee: Micron Technology, Inc.
    Inventors: Andrea Redaelli, Giorgio Servalli
  • Publication number: 20150022310
    Abstract: A fuse arrangement, including: at least a first terminal, a second terminal, and a fuse, wherein the first terminal and the second terminal may be electrically connected via the fuse, and wherein the fuse may be configured to be under fuse internal mechanical stress to deform the fuse along its width direction in case it is broken.
    Type: Application
    Filed: July 19, 2013
    Publication date: January 22, 2015
    Inventor: Achim Gratz
  • Patent number: 8937524
    Abstract: A surface mount fuse in one embodiment includes an insulative body, first and second conductive and caps attached to the insulative body, each end cap defining an aperture, and a fuse element extending (i) through the insulative body and the apertures and (ii) along outside surfaces of the first and second conductive end caps in such a way that solder used to attach the first and second conductive end caps to an external medium also fastens the fuse element to the first and second end caps.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: January 20, 2015
    Assignee: Littelfuse, Inc.
    Inventors: Conrado de Leon, Gordon T. Dietsch, Edgardo Olan, John Emannuel Semana, John Song, Stephen J. Whitney
  • Publication number: 20150009007
    Abstract: A compact, high breaking capacity fuse that includes a top insulative layer, at least one intermediate insulative layer, and a bottom insulative layer arranged in a vertically stacked configuration. The at least one intermediate layer may have a hole formed therethrough that defines a chamber having arc suppression material disposed therein. A first conductive terminal may be formed on a first end of the fuse and a second conductive terminal may be formed on a second end of the fuse. At least one fusible element may connect the first terminal to the second terminal, thus providing an electrically conductive pathway therebetween. A portion of the at least one fusible element may pass through the air gap defined by the hole in the at least one intermediate insulative layer.
    Type: Application
    Filed: September 23, 2014
    Publication date: January 8, 2015
    Applicant: LITTELFUSE, INC.
    Inventors: ALBERT ENRIQUEZ, DEMETRIO CRISTE, CONRADO DE LEON, CRISPIN ZULUETA, ROEL RETARDO, JOHN SEMANA, Gordon Todd Dietsch
  • Publication number: 20140340046
    Abstract: A protective element including a substrate having a first insulating member and a concave portion formed thereon, a heating body layered on the concave portion of the substrate, a second insulating member layered on the substrate so as to cover at least covering the heating body, first and second electrodes layered on a surface of the substrate on which the second insulating member is layered, a heating body electrode layered on the second insulating member so as to be superimposed with the heating body, and electrically connected to a current path between the first and the second electrodes as well as onto and the heating body, and a low-melting point metal layered from the heating body electrode toward the first and the second electrodes configured to cause a blowout of the current path between the first and the second electrodes by heating.
    Type: Application
    Filed: December 17, 2012
    Publication date: November 20, 2014
    Applicant: Dexerials Corporation
    Inventors: Chisato Komori, Yuji Furuuchi, Yoshihiro Yoneda, Koichi Mukai, Koji Ejima, Takashi Fujihata, Kazutaka Furuta, Toshiaki Araki
  • Publication number: 20140167906
    Abstract: A fuse formed as part of an integrated circuit has cavities disposed to the sides of the fuse to provide more reliable operation with less chance of re-connection. A method of providing the fuse is also described.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 19, 2014
    Inventor: Yigong Wang
  • Patent number: 8741453
    Abstract: Disclosed are a current interrupting device and a secondary battery including the same. According to an embodiment, a current interrupting device comprises a first terminal; a second terminal; a fuse coupled to the first and second terminals; and a fuse body surrounding an exterior of the fuse to seal the fuse, wherein the first and second terminals include thin portions connected to the fuse, and the thin portions have a thickness less than a thickness of other portions of the first and second terminals.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: June 3, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kyounghan Kim, Moonhong Han, Junsun Yong, Seongdae Ji, Cheolwoo Shim, Kwangchun Kim, Jeongman Park
  • Patent number: 8686536
    Abstract: An embodiment is a fuse structure. In accordance with an embodiment, a fuse structure comprises an anode, a cathode, a fuse link interposed between the anode and the cathode, and cathode connectors coupled to the cathode. The cathode connectors are each equivalent to or larger than about two times a minimum feature size of a contact that couples to an active device.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: April 1, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shien-Yang Wu, Wei-Chan Kung
  • Patent number: 8659384
    Abstract: A chip fuse includes a plurality of parallel fusible link layers disposed between a corresponding plurality of insulating glass layers deposited on a substrate and laminated together. The fusible link layers are interconnected between the glass layers without the need for vias. A first of the plurality of fusible link layers extends beyond a cover disposed over the chip fuse and one of the glass layers to form a first electrical terminal connection. Another of the plurality of the fusible link layers also extends beyond the cover and another of the glass layers to form a second electrical terminal connection.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: February 25, 2014
    Assignee: Littelfuse, Inc.
    Inventors: G. Todd Dietsch, Olga Spaldon-Stewart
  • Patent number: 8633795
    Abstract: The invention relates to a thermal fuse in a circuit structure, particularly a punched grid, having a plurality of circuit areas, having the circuit structure with connections sites (9) and having a fusible element (3), which is electrically and mechanically connected to the connection sites (9) of the circuit structure, a material of the fusible element (3) having a melting point, in order to melt at an ambient temperature greater than the melting point, such that material of the fusible element (3) collects at the connection sites (9) and the electrical connection formed by the fusible element (3) breaks.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: January 21, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Norbert Knab, Georg Schulze-Icking-Konert, Thomas Mohr, Stefan Kotthaus, Nikolas Haberl, Stefan Stampfer, Michael Mueller
  • Patent number: 8573750
    Abstract: Systems and apparatus for ejecting fluid. A fluid injection apparatus includes a fluid ejector unit for ejecting a droplet of fluid, an integrated circuit, and a conductive trace electrically coupling the fluid ejector unit and the integrated circuit. A portion of the conductive trace includes a fuse.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: November 5, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Paul A. Hoisington, Andreas Bibl, Mats G. Ottosson, Deane A. Gardner
  • Patent number: 8531263
    Abstract: A circuit protection device includes a conductive layer which is connected to first and second terminals. A spring is electrically connected to the first and second terminals. When an over-voltage or over-temperature condition occurs within a charging circuit, one or more heat generating resistive elements melts material associated with one or more of the ends of the spring thereby releasing the spring to create an open circuit.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: September 10, 2013
    Assignee: Littelfuse, Inc.
    Inventors: G. Todd Dietsch, Olga Spaldon-Stewart, Stephen Whitney
  • Patent number: 8525633
    Abstract: A fuse element includes a substrate disposed between first and second terminals. The substrate includes an electrically insulative material. A conductive film is disposed on a first surface of the substrate and in electrical contact with the first terminal and second terminals.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: September 3, 2013
    Assignee: Littelfuse, Inc.
    Inventors: Stephen J. Whitney, William Travis, Jeffrey P. Youngblood, Sarah M. Book, Edward D. Barriball, Milea J. Kittle
  • Publication number: 20130214894
    Abstract: Structure providing more reliable fuse blow location, and method of making the same. A vertical metal fuse blow structure has, prior to fuse blow, an intentionally damaged portion of the fuse conductor. The damaged portion helps the fuse blow in a known location, thereby decreasing the resistance variability in post-blow circuits. At the same time, prior to fuse blow, the fuse structure is able to operate normally. The damaged portion of the fuse conductor is made by forming an opening in a cap layer above a portion of the fuse conductor, and etching the fuse conductor. Preferably, the opening is aligned such that the damaged portion is on the top corner of the fuse conductor. A cavity can be formed in the insulator adjacent to the damaged fuse conductor. The damaged fuse structure having a cavity can be easily incorporated in a process of making integrated circuits having air gaps.
    Type: Application
    Filed: February 17, 2012
    Publication date: August 22, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Griselda Bonilla, Kaushik Chanda, Samuel S. Choi, Ronald G. Filippi, Stephan Grunow, Naftali E. Lustig, Andrew H. Simon
  • Publication number: 20130207769
    Abstract: A fuse arrangement includes a first safety fuse and a second safety fuse connected electrically in parallel with each other. The fuse arrangement also includes an end plate mechanically coupled to the first and second safety fuses to form a structural unit. The creation of a structural unit may actively prevent a disassembly and thus replacement of only one of the two safety fuses. Furthermore, the electrical parallel connection of the two safety fuses may double the maximum current strength of the fuse arrangement and/or significantly reduce the required installation space of the fuse arrangement, with a continuous maximum current strength.
    Type: Application
    Filed: February 11, 2013
    Publication date: August 15, 2013
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Siemens Aktiengesellschaft
  • Patent number: 8493170
    Abstract: The invention relates to an overvoltage protection device having one or more parallel-connected voltage-limiting elements which are located in one physical unit, such as varistors, diodes or means of this type configured in the form of a disc, comprising a shell apparatus in order to electrically disconnect the overvoltage-limiting elements when they are thermally overloaded, and means for indication and/or signalling of the fault state which then occurs, wherein the switching apparatus is connected via a means which can be released thermally, such as adhesive or a solder, to a connecting contact of the at least one overvoltage-limiting element, and/or to an external terminal contact or plug contact. According to the invention, the switching apparatus is in the form of a solid U-shaped switching fork, the fork tines of which run essentially parallel to the side surfaces of the overvoltage-limiting element, holding the latter in the space between the tines.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: July 23, 2013
    Assignee: DEHN + SÖHNE GmbH + Co. KG
    Inventors: Edmund Zäuner, Richard Daum, Helmut Hirschmann
  • Publication number: 20130099888
    Abstract: Some embodiments include a fuse having a tungsten-containing structure directly contacting an electrically conductive structure. The electrically conductive structure may be a titanium-containing structure. An interface between the tungsten-containing structure and the electrically conductive structure is configured to rupture when current through the interface exceeds a predetermined level. Some embodiments include a method of forming and using a fuse. The fuse is formed to have a tungsten-containing structure directly contacting an electrically conductive structure. An interface between the tungsten-containing structure and the electrically conductive structure is configured to rupture when current through the interface exceeds a predetermined level. Current exceeding the predetermined level is passed through the interface to rupture the interface.
    Type: Application
    Filed: October 19, 2011
    Publication date: April 25, 2013
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Andrea Redaelli, Giorgio Servalli
  • Patent number: 8405483
    Abstract: A fuse used in a semiconductor memory device. The fuse is formed with a “X” shape where one circuit may be connected simultaneously to a plurality of other circuits. As a result, a fuse region is reduced, and the cutting number is also decreased, thereby lowering the possibility of defects resulting from cutting errors.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: March 26, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jeong Soo Kim, Byung Wook Bae
  • Patent number: 8368502
    Abstract: A surface mount current fuse of the present invention includes a first base which has a recess and is smaller in width at the other end than at one end in the longitudinal direction, and a second base which has the same shape as the first base. The first base and the second base are combined to form a box-shaped body by joining the lower surface of the second base to the upper surface of the upper surface of the first base in such a manner that one end of the first base and the other end of the second base are in contact with each other. The recess of the first base and the recess of the second base form a space portion in which to dispose an element portion. The borderline between the first base and the second base passes through the center point on a side surface of the body. As a result, the surface mount current fuse has high production efficiency.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: February 5, 2013
    Assignee: Panasonic Corporation
    Inventors: Tomoyuki Washizaki, Toshiyuki Iwao, Kenji Senda, Takashi Watanabe, Kazutoshi Matsumura, Seiji Tsuda
  • Patent number: 8258913
    Abstract: 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: Grant
    Filed: August 28, 2007
    Date of Patent: September 4, 2012
    Assignee: Yazaki Corporation
    Inventor: Norio Matsumura
  • Publication number: 20120154102
    Abstract: An electrical fuse structure includes a first metal strip having a first width W1 and a first length L1; a second metal strip having a second width W2 and a second length L2; and at least one via element having a via width W0, the via element being electrically connecting one end of the first metal strip to one end of the second metal strip, wherein W1<5W0.
    Type: Application
    Filed: December 16, 2010
    Publication date: June 21, 2012
    Inventor: Shi-Bai Chen
  • Patent number: 8154377
    Abstract: The invention relates to a circuit breaker for electrical supply lines, particularly power supply lines or battery cables, for motor vehicles, which circuit breaker is comprised of a first connecting element (1), a second connecting element (3) connectable to said first connecting element (1), and a current path whereby in the conducting state of the circuit breaker a current passes between the first connecting element (1) and the second connecting element (3). The technical problem of providing a circuit breaker for electrical supply lines which can be manufactured and advantageously ensures an error-free operation is solved in that a pyrotechnic separating unit (5) is thermally actuatable by Joule heat emitted by at least one of said connecting elements (1, 3) and in that, the connection between the connecting elements (1, 3) can be released by means of the actuated pyrotechnic separating unit (5).
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: April 10, 2012
    Assignee: Auto Kabel Managementgesellschaft mbH
    Inventors: Franz-Josef Lietz, Oliver Kastrop, Tomas Schulz, Reiner Mäckel
  • Patent number: 8130070
    Abstract: A multiple fuse device for a vehicle includes a circuit board with a battery-side bus bar portion and an alternator-side bus bar portion connected together by a temporary joint portion at a position apart from a fusing portion that provides charging current protection. An insulator housing is placed over the circuit board but the temporary joint portion is left uncovered by the insulator housing. A temporary joint portion is then at least partially removed. This partial removal may leave behind two temporary joint portion remnants, one on the battery-side bus bar portion, and one on the alternator-side bus bar portion. The temporary joint portion thus enhances the strength of the circuit board while the fuse device is being manufactured, which prevents the fusing portion from being accidentally deformed or broken during the device's assembly.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: March 6, 2012
    Assignee: Pacific Engineering Corporation
    Inventor: Hideki Shibata
  • Patent number: 8081057
    Abstract: A current protection device comprises a substrate having an upper portion and a lower portion; a fusing layer installed between the upper portion and the lower portion; ends of the fusing layer exposed from the substrate; a cavity formed near surfaces of the fusing layer for providing a space to receive the fusing layer as the fusing layer fuses; and an end electrode having three layers including a silver thin layer, a nickel thin layer and a tin thin layer; the end electrode being formed as a conductive electrode. The method for forming the same is provided.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: December 20, 2011
    Inventor: Hung-Chih Chiu
  • Publication number: 20110279218
    Abstract: An improved fusible element for use within a circuit protection device is provided which includes a double wound fusible element configured to withstand high surge current associated with inductive and capacitive loads. The fusible element includes an insulated core having a longitudinal axis, a first wire wound about the core along the longitudinal axis of the core, and a second wire wound substantially orthogonally about a longitudinal axis of the first wire such that the fusible element is configured to withstand an over-current surge condition.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 17, 2011
    Applicant: LITTELFUSE, INC.
    Inventors: Bienvenido Salonga, Francisco De Guia, Alvin Salvador
  • Publication number: 20110241817
    Abstract: A current fuse includes: a fuse portion that is disposed on a substrate; and a conductive portion that is placed in an overlying layer above the fuse portion or an underlying layer between the substrate and the fuse portion, has the same potential as that of one portion of the fuse portion when a current is passed through the fuse portion, and extends apart from the fuse portion from the one portion side of the fuse portion as far as an overlying layer above or an underlying layer below another portion of the fuse portion whose potential differs from that of the one portion.
    Type: Application
    Filed: March 28, 2011
    Publication date: October 6, 2011
    Applicant: OKI SEMICONDUCTOR CO., LTD.
    Inventor: Yuuki DOI
  • Publication number: 20110234362
    Abstract: A shape memory circuit breaker includes a shape memory substrate having first and second opposed substrate ends. The shape memory substrate is configured to transition from a strained conductive configuration to a fractured non-conductive configuration. An isolation housing is coupled with the shape memory substrate. The isolation housing includes first and second anchors coupled near the first and second substrate ends. A brace extends between the first and second anchors, and the brace statically positions the first and second anchors and the respective first and second substrate ends. The shape memory substrate is configured to transition from the strained conductive configuration to the fractured non-conductive configuration at or above a specified temperature range corresponding to a specified overload current range or voltage range, and the first substrate end fractures from the second substrate end at or above the specified temperature range resulting in an open circuit.
    Type: Application
    Filed: June 8, 2011
    Publication date: September 29, 2011
    Applicant: Raytheon Company
    Inventors: Frederick B. Koehler, Ward D. Lyman, William D. Werries
  • Publication number: 20110181385
    Abstract: The invention relates to a thermal fuse (1) for interrupting a power flow in modules, particularly for use in the automotive field, comprising: - a connecting element having a connecting region, - a fusible element (3) composed of fusible material and attached with one end to the connecting region (2) in order to establish an electrically conductive connection between the fusible element (3) and the connecting element (2), the connecting element (2) comprising an expansion region for accommodating melted fusible material, characterized in that the expansion region has an expansion surface (6) on which part of or all of the melted fusible material spreads as the fusible element melts, the expansion surface (6) having no positive curvature.
    Type: Application
    Filed: June 12, 2009
    Publication date: July 28, 2011
    Applicant: Robert Bosch GmbH
    Inventors: Georg Schulze-Icking-Konert, Daniel Seebacher
  • Patent number: 7986212
    Abstract: 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: Grant
    Filed: April 11, 2008
    Date of Patent: July 26, 2011
    Assignee: Yazaki Corporation
    Inventors: Masahiro Ueno, Katsuyuki Iwasaki, Teppei Doi, Hiromichi Hanaoka
  • Publication number: 20110156856
    Abstract: An electrical fuse device includes a cathode and an anode formed apart from each other and a fuse link connecting the cathode and the anode. The cathode includes a first region and a second region. The second region is arranged between the first region and the fuse link. A width of the second region may be greater than a width of the first region.
    Type: Application
    Filed: February 24, 2011
    Publication date: June 30, 2011
    Inventors: Soojung Hwang, Deokkee Kim, Youngchang Joo
  • Patent number: 7969275
    Abstract: 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: Grant
    Filed: November 14, 2008
    Date of Patent: June 28, 2011
    Assignee: EnerDel, Inc.
    Inventor: Chad Hartzog
  • Publication number: 20110121936
    Abstract: A circuit protection device includes a conductive layer which is connected to first and second terminals. A spring is electrically connected to the first and second terminals. When an over-voltage or over-temperature condition occurs within a charging circuit, one or more heat generating resistive elements melts material associated with one or more of the ends of the spring thereby releasing the spring to create an open circuit.
    Type: Application
    Filed: November 23, 2010
    Publication date: May 26, 2011
    Applicant: LITTELFUSE, INC.
    Inventors: G. Todd Dietsch, Olga Spaldon-Stewart, Stephen Whitney
  • Publication number: 20110081560
    Abstract: Disclosed are a current interrupting device and a secondary battery including the same. According to an embodiment, a current interrupting device comprises a first terminal; a second terminal; a fuse coupled to the first and second terminals; and a fuse body surrounding an exterior of the fuse to seal the fuse, wherein the first and second terminals include thin portions connected to the fuse, and the thin portions have a thickness less than a thickness of other portions of the first and second terminals.
    Type: Application
    Filed: August 11, 2010
    Publication date: April 7, 2011
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Kyounghan Kim, Moonhong Han, Junsun Yong, Seongdae Ji, Cheolwoo Shim, Kwangchun Kim, Jeongman Park
  • Publication number: 20110068889
    Abstract: A thermal fuse includes a first insulating film to which a pair of metal terminals are attached, a fusible alloy located above the first insulating film and connected between the leading end portions of the pair of metal terminals, and a second insulating film located above the fusible alloy and attached to the first insulating film so as to define a space with the first insulating film. The fusible alloy includes an Sn—Bi—In—Zn alloy containing 0.5 to 15 weight % of Bi, 45 to 55 weight % of In and 0.5 to 5 weight % of Zn with the balance being Sn.
    Type: Application
    Filed: November 24, 2010
    Publication date: March 24, 2011
    Inventors: KENJI SENDA, Takahiro Mukai, Masatoshi Izaki
  • Publication number: 20110063070
    Abstract: A chip fuse includes a plurality of parallel fusible link layers disposed between a corresponding plurality of insulating glass layers deposited on a substrate and laminated together. The fusible link layers are interconnected between the glass layers without the need for vias. A first of the plurality of fusible link layers extends beyond a cover disposed over the chip fuse and one of the glass layers to form a first electrical terminal connection. Another of the plurality of the fusible link layers also extends beyond the cover and another of the glass layers to form a second electrical terminal connection.
    Type: Application
    Filed: September 15, 2010
    Publication date: March 17, 2011
    Applicant: LITTELFUSE, INC.
    Inventors: G. Todd Dietsch, Olga Spaldon-Stewart
  • Patent number: 7884698
    Abstract: An electronic component is provided in which: impact-absorbing layers are provided so as to cover at least the corner portions of both end portions of a base which is made of an insulating mixture of ceramic and glass; a conductive film is formed so as to cover the surface of these impact-absorbing layers and the surface of the base; the portions of this conductive film which cover the surfaces of the impact-absorbing layers are formed into electrodes; and a resistance-adjusting groove is provided in an other portion of the conductive film than the portions serving as the electrodes.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: February 8, 2011
    Assignee: Panasonic Corporation
    Inventors: Hideki Tanaka, Tomoyuki Washizaki, Kiyoshi Ikeuchi, Toshiyuki Iwao, Yasuki Nagatomo, Kesato Iiboshi, Jiro Ota, Yasuhiro Izumi
  • Patent number: 7864023
    Abstract: 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: Grant
    Filed: July 4, 2010
    Date of Patent: January 4, 2011
    Assignee: S&C Electric Company
    Inventors: Glenn R. Borchardt, Michael G. Ennis, Jorge R. Montante, Martin A. Warszawa
  • Publication number: 20100245025
    Abstract: A surface mount fuse in one embodiment includes an insulative body, first and second conductive and caps attached to the insulative body, each end cap defining an aperture, and a fuse element extending (i) through the insulative body and the apertures and (ii) along outside surfaces of the first and second conductive end caps in such a way that solder used to attach the first and second conductive end caps to an external medium also fastens the fuse element to the first and second end caps.
    Type: Application
    Filed: March 25, 2009
    Publication date: September 30, 2010
    Applicant: Littelfuse, Inc.
    Inventors: Conrado de Leon, Gordon T. Dietsch, Edgardo Olan, John Emannuel Semana, John Song, Stephen J. Whitney
  • Publication number: 20100176910
    Abstract: The invention relates to a fusible alloy element (1), in particular for producing a thermal fuse, comprising a fusible element (2), which is made of a material that melts at a trigger temperature, and a support layer (4) on a surface in at least one contacting area of the fusible alloy element (1).
    Type: Application
    Filed: February 1, 2008
    Publication date: July 15, 2010
    Inventors: Norbert Knab, Georg Schulze-Icking-Konert, Thomas Mohr, Stefan Kotthaus, Nikolas Haberl, Stefan Stampfer, Michael Mueller
  • Publication number: 20100148915
    Abstract: An electrical fuse structure is disclosed. The electrical fuse structure includes a fuse element disposed on surface of a semiconductor substrate, a cathode electrically connected to one end of the fuse element, and an anode electrically connected to another end of the fuse element. Specifically, a compressive stress layer is disposed on at least a portion of the fuse element.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 17, 2010
    Inventors: Chien-Li Kuo, Yung-Chang Lin, Kuei-Sheng Wu, San-Fu Lin
  • Publication number: 20100141375
    Abstract: A circuit interruption device for printed wiring boards having a positive expulsion device for removing melted fuse material, plasma and debris from the printed wiring board.
    Type: Application
    Filed: December 9, 2008
    Publication date: June 10, 2010
    Inventor: Julius M. Liptak
  • Publication number: 20100141713
    Abstract: Systems and apparatus for ejecting fluid. A fluid injection apparatus includes a fluid ejector unit for ejecting a droplet of fluid, an integrated circuit, and a conductive trace electrically coupling the fluid ejector unit and the integrated circuit. A portion of the conductive trace includes a fuse.
    Type: Application
    Filed: October 28, 2009
    Publication date: June 10, 2010
    Inventors: Paul A. Hoisington, Andreas Bibl, Mats G. Ottosson, Deane A. Gardner