EP1182679A1 - Leistungsschalter - Google Patents

Leistungsschalter Download PDF

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Publication number
EP1182679A1
EP1182679A1 EP00117371A EP00117371A EP1182679A1 EP 1182679 A1 EP1182679 A1 EP 1182679A1 EP 00117371 A EP00117371 A EP 00117371A EP 00117371 A EP00117371 A EP 00117371A EP 1182679 A1 EP1182679 A1 EP 1182679A1
Authority
EP
European Patent Office
Prior art keywords
shaft
returning
preventing lock
returning motion
preventing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00117371A
Other languages
English (en)
French (fr)
Inventor
Goro Yazaki Parts Co. Ltd. Nakamura
Takahiro Yazaki Parts Co. Ltd. Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yazaki Corp
Original Assignee
Yazaki Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yazaki Corp filed Critical Yazaki Corp
Priority to EP00117371A priority Critical patent/EP1182679A1/de
Publication of EP1182679A1 publication Critical patent/EP1182679A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H2001/5877—Electric connections to or between contacts; Terminals with provisions for direct mounting on a battery pole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H2039/008—Switching devices actuated by an explosion produced within the device and initiated by an electric current using the switch for a battery cutoff

Definitions

  • the present invention relates to a power breaker for interrupting a power circuit utilizing sublimation of a gas starting agent for example, and more particularly, to a resettable power breaker in which after a power circuit is forcibly interrupted when abnormal conditions were encountered or a short circuit, collision of vehicle or the like occurred, it is possible to reliably prevent the power circuit from being energized again by impact, vibration or other external force.
  • Japanese Patent Application Laid-open No. H11-301376 discloses a structure in which in a power breaker in which can forcibly interrupt a power circuit when abnormal conditions were encountered or a short circuit, collision of vehicle or the like occurred.
  • a structure of the above-described conventional power breaker as the following problem. That is, since there is no function for holding the shaft at the interruption position after the shaft was slid to the interruption position to interrupt between the terminals, there is an adverse possibility that the shaft may be returned to the initial position by reaction force, impact, vibration caused by the projecting motion of the shaft or by external force, and the terminals may be electrically connected to each other.
  • Japanese Patent Application Laid-open No. H9-251830 discloses a structure in which in a power breaker having two terminals for making and breaking a power circuit and capable of connecting and separating the two terminals to and from each other by sliding movement of a shaft.
  • a returning motion-preventing lock used in the disclosed technique, there is a problem that although the shaft can be locked at the interruption position, this lock can not be released to return the shaft to the initial position.
  • a power breaker comprising a pair of terminals inserted in a power circuit for connecting a battery of a vehicle and loads provided in various portions of the vehicle, and a shaft capable of connecting and separating the terminals to and from each other by sliding movement of the shaft, in which the shaft is slid from an initial position where the terminals are connected to each other to an interruption position where the terminals are separated from each other, thereby interrupting the power circuit, wherein the shaft is provided at its one end with a returning motion-preventing lock which jumps out from the shaft when the shaft interrupts the power circuit to prevent the shaft from returning to the initial position.
  • the shaft capable of connecting and separating the two terminals with and from each other to energize and interrupt the power circuit is provided at its one end with a returning motion-preventing lock which jumps out from the shaft when the shaft interrupts the power circuit to prevent the shaft from returning to the initial position. Therefore, the shaft can be held at the interruption position by the returning motion-preventing lock, and it is possible to reliably prevent the power circuit from being energized again by impact, vibration or other external force after a power circuit is forcibly interrupted when abnormal conditions were encountered or a short circuit, collision of vehicle or the like occurred.
  • the returning motion-preventing lock is accommodated in a reset knob mounted to one end of the shaft together with a resilient member, and the returning motion-preventing lock jumps out by a force of the resilient member when the shaft interrupts the power circuit.
  • the returning motion-preventing lock since the returning motion-preventing lock can easily be accommodated in the reset knob manually, the reset operation for returning the shaft to the original initial position can be carried out easily.
  • the resilient member is a torsion spring provided in the reset knob and acting around the reset knob fulcrum.
  • the torsion spring exerts a force in an opening direction to the returning motion-preventing lock around the reset knob. Further, since the returning motion-preventing lock can easily be accommodated in the reset knob manually, the reset operation for returning the shaft to the original initial position can be carried out easily.
  • the returning motion-preventing lock is provided with a claw engaged with an apparatus body when the returning motion-preventing lock jumps out from the shaft, thereby preventing the shaft from falling out from the apparatus body.
  • the returning motion-preventing lock is provided with a claw engaged with an apparatus body when the returning motion-preventing lock jumps out from the shaft, thereby preventing the shaft from falling out from the apparatus body. Therefore, the reset operation for returning the shaft to the original initial position is not interrupted.
  • Fig. 1 is a block diagram showing one example of electrical equipment system to which a power breaker of the present invention is applied.
  • a starter 3 an alternator 4, an ignition switch (IGN.SW) 5, and other loads such as a load 6 provided in various portions of a vehicle are connected to a battery 2 of the vehicle through a wire harness 8 having an electric wire 7.
  • a power breaker 9 of the present invention is interposed in the power circuit.
  • a number 10 represents a G-sensor (G-SSR), and a number 11 represents an air bag ECU. They are used for operating the power breaker 9.
  • a number 12 represents a hazard, a number 13 represents a phone (PHONE), and a number 14 represents a door lock (D/L). They are examples of system structural articles which do not interrupt the power circuit by the power breaker 9.
  • this electrical equipment system As shown in an interruption flow of Fig. 2, if the subject vehicle collided against an object such as another vehicle ahead and a collision signal was output from the G-sensor (G-SSR) 10 to the air bag ECU11, (step ST201), a circuit interrupting signal is generated in the air bag ECU11, and this generated circuit interrupting signal is output to the power breaker 9 (step ST202).
  • G-SSR G-sensor
  • the power breaker 9 can interrupt the power circuit to stop the electric supply from the battery 2 to the various loads such as the starter 3, the alternator 4, the ignition switch (IGN.SW) 5 (step ST203) as will be explained below based on Figs. 3 to 6.
  • Figs. 3 and 4 show a structure of one embodiment of the power breaker 9 of the present invention.
  • Fig. 3 is a sectional side view of an essential portion of an embodiment of the gas-type power breaker in its initial state before it is operated
  • Fig. 4 is a sectional side view of an essential portion of the one example of the gas-type power breaker in its interruption state after it was operated.
  • a shaft 16 is inserted in a base body (apparatus body) 15, and the power breaker 9 includes terminals 17a, 17b which are connected to each other for feeding electricity from the battery 2 to each of the loads such as the starter 3 and the alternator 4.
  • the terminals 17a, 17b are electrically connected to each other by the shaft 16. Therefore, a current of the power circuit flows from terminal 17a ⁇ shaft 16 ⁇ terminal 17b. Since the terminals 17a, 17b are in contact with the multi-point connection spring 18 at contacts, a large current can flow through the terminals 17a, 17b.
  • a reset knob 20 is mounted to a tip end of the shaft 16 using a stopper 19, and a torsion spring 21 and a returning motion-preventing lock 22 are bent and accommodated in the reset knob 20.
  • the returning motion-preventing lock 22 can be rotated around a reset-knob fulcrum 20a of the reset knob 20 by a load of the torsion spring 21. Further, as shown in Fig. 5, the returning motion-preventing lock 22 is provided with a claw 22a so that the returning motion-preventing lock 22 will not rotate beyond a predetermined rotational angular position to prevent the shaft 16 from falling out from the base body 15.
  • An ignitor 24 accommodating a gas starting agent 23 therein is mounted to a rear end of the shaft 16.
  • a number 25 represents a starting-agent case
  • a number 26 represents a nozzle
  • a number 27 represents a nozzle-mounting plate
  • a number 28 represents an O-ring
  • a number 29 represents a terminal-mounting plate.
  • the shaft 16 can be held at the interruption position by the returning motion-preventing lock 22, and it is possible to reliably prevent the power circuit from being energized again by impact, vibration or other external force after a power circuit is forcibly interrupted when abnormal conditions were encountered or a short circuit, collision of vehicle or the like occurred.
  • the returning motion-preventing lock 22 jumps out from inside of the reset knob 20 firmly connected together with the shaft 16 by a force of the torsion spring 21 at the time of the interrupting operation of the shaft. Therefore, as shown in Fig. 6, the returning motion-preventing lock 22 can easily be inserted manually into the reset knob 20 in a direction of arrow A while pushing the returning motion-preventing lock 22 in a direction of arrow B (while preventing the returning motion-preventing lock 22 from jumping out).
  • the returning motion-preventing lock 22 can easily be accommodated in the reset knob 20 manually and the shaft 16 can be prevented from falling out from the base body 15 in this manner, the reset operation for returning the shaft 16 to the original initial position can be carried out easily.
  • a compression spring or a rubber may be used instead of the torsion spring. Any member may be used as the resilient member only if it can reliably bias the returning motion-preventing lock outward at the time of the interrupting operation of the shaft.

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  • Mechanisms For Operating Contacts (AREA)
EP00117371A 2000-08-23 2000-08-23 Leistungsschalter Withdrawn EP1182679A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00117371A EP1182679A1 (de) 2000-08-23 2000-08-23 Leistungsschalter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00117371A EP1182679A1 (de) 2000-08-23 2000-08-23 Leistungsschalter

Publications (1)

Publication Number Publication Date
EP1182679A1 true EP1182679A1 (de) 2002-02-27

Family

ID=8169505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00117371A Withdrawn EP1182679A1 (de) 2000-08-23 2000-08-23 Leistungsschalter

Country Status (1)

Country Link
EP (1) EP1182679A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004081960A1 (de) * 2003-03-12 2004-09-23 Delphi Technologies, Inc. Gehäuse und stromleiterschiene für eine batterieabschaltung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204734A (en) * 1987-05-12 1988-11-16 Harry Marsh Thompson A vehicle battery isolating switch
JPH09251830A (ja) 1996-02-21 1997-09-22 Bayerische Motoren Werke Ag 車両用搭載回路網
US5808253A (en) * 1995-04-06 1998-09-15 Fuji Electric Co., Ltd. Circuit-breaking apparatus
JPH11301376A (ja) 1998-04-15 1999-11-02 Yazaki Corp 電源遮断装置
US6078108A (en) * 1996-04-04 2000-06-20 Kabelkonfektion Gebauer & Griller Gmbh Apparatus for interrupting the flow of current in a cable

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204734A (en) * 1987-05-12 1988-11-16 Harry Marsh Thompson A vehicle battery isolating switch
US5808253A (en) * 1995-04-06 1998-09-15 Fuji Electric Co., Ltd. Circuit-breaking apparatus
JPH09251830A (ja) 1996-02-21 1997-09-22 Bayerische Motoren Werke Ag 車両用搭載回路網
US6078108A (en) * 1996-04-04 2000-06-20 Kabelkonfektion Gebauer & Griller Gmbh Apparatus for interrupting the flow of current in a cable
JPH11301376A (ja) 1998-04-15 1999-11-02 Yazaki Corp 電源遮断装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 07 31 March 1999 (1999-03-31) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 02 29 February 2000 (2000-02-29) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004081960A1 (de) * 2003-03-12 2004-09-23 Delphi Technologies, Inc. Gehäuse und stromleiterschiene für eine batterieabschaltung
US7498531B2 (en) 2003-03-12 2009-03-03 Delphi Technologies, Inc. Housing and a conducting rail for disconnecting a battery

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