EP0954894A1 - Dispositif protecteur contre des erreurs de polarisation dans le reseau electrique de bord d'un vehicule - Google Patents

Dispositif protecteur contre des erreurs de polarisation dans le reseau electrique de bord d'un vehicule

Info

Publication number
EP0954894A1
EP0954894A1 EP98906883A EP98906883A EP0954894A1 EP 0954894 A1 EP0954894 A1 EP 0954894A1 EP 98906883 A EP98906883 A EP 98906883A EP 98906883 A EP98906883 A EP 98906883A EP 0954894 A1 EP0954894 A1 EP 0954894A1
Authority
EP
European Patent Office
Prior art keywords
circuit
battery
yoke
vehicle
isolating
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Withdrawn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
EP98906883A
Other languages
German (de)
English (en)
Inventor
Jürgen BREITLOW-HERTZFELDT
Thomas Haehnel
Wolfgang Reimann
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.)
TE Connectivity Solutions GmbH
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0954894A1 publication Critical patent/EP0954894A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
    • H02H11/002—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/08—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by reversal of dc
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/10—Parallel operation of dc sources
    • H02J1/122—Provisions for temporary connection of DC sources of essentially the same voltage, e.g. jumpstart cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/16—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for conjoint, e.g. additive, operation of the relay
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings

Definitions

  • the invention relates to a protective device against incorrect polarity in the electrical system of a vehicle with a battery, the two output poles of which act on two power lines with different potentials.
  • a device for securing a main current path in a motor vehicle is known from DE 41 10 240 Cl.
  • a short-circuit situation is the sensor and comparison means determined and evaluated to separate the circuit.
  • An explosive device or an electromagnetic actuator are mentioned as shutdown means, for example, without going into detail about the construction and function of such an actuator.
  • switch disconnectors in the form of overcurrent releases with an electromagnetic system are known, for example from EP 0 322 987 B1.
  • the aim of the present invention is to provide a protective device with which the vehicle electrical system of a vehicle can be effectively and easily protected against incorrect polarity at the battery connection.
  • this object is achieved in that an isolating contact of an electromagnetic isolating switch is inserted into the current line carrying a first potential, which isolating contact forms a ferromagnetic circuit with a core and / or a yoke and an armature actuating the isolating contact, that of the Side of the isolating contact facing away from the battery, a low-resistance shunt branch is led via a reverse-connected diode to the power line carrying the second potential, and that the shunt branch crosses the -ferromagnetic circuit of the disconnector.
  • the protective device thus uses an electromagnetic isolating switch, which interrupts this circuit when activated via a contact arranged in the circuit.
  • This magnetic switch is triggered by a simple circuit-technical measure, namely by means of a shunt branch applied via the diode only in the case of incorrect polarity, the high short-circuit current with a corresponding spatial arrangement, ie a coupling, generating a sufficiently high excitation in the magnetic circuit to the An - ker and open the contact.
  • the shunt branch forms only a single turn or only half a turn, in that it is guided between the yoke and coil or only outside the yoke approximately perpendicular to its longitudinal direction. This triggering of the magnet system with the incorrectly polarized short-circuit current takes place without the involvement of the coil winding, so that in principle a magnet system without winding could also be used for this purpose.
  • an electromagnetic system that also triggers a coil winding in normal operation, for example for battery disconnection in the event of malfunctions, such as a (correctly polarized) short-circuit current or in the event of an accident with an impact acceleration sensor.
  • the protective device according to the invention is connected to a battery disconnect switch, which is arranged spatially in the region of the battery and has an electromagnet system with a coil and a yoke.
  • the shunt branch can be passed between the winding and the yoke in the form of a sheet metal strip made of highly conductive metal.
  • the drawing shows an on-board battery 1, the positive pole of which is connected to a load current line 2 and the negative pole of which is generally connected to a ground line 3.
  • these two power lines lead through a schematically illustrated disconnector unit, at whose output the on-board electrical system terminals 5 and 6 are arranged.
  • electronic systems are also switched on, which in any case must be protected against incorrect polarity of the on-board electrical system.
  • There is a risk of incorrect polarity in particular if either the on-board battery 1 is incorrectly connected during installation or if an additional third-party battery 7 is connected via jump starter cable 8 with incorrect polarity to support a weak on-board battery.
  • a schematically illustrated electromagnet system 9 is arranged, which has a coil 10, a U-shaped yoke 11 and a lifting armature 12.
  • the armature 12 actuates a normally closed contact 13, which is therefore opened when the armature 12 is tightened and thus interrupts the power line 2.
  • the mechanical coupling between the armature 12 and the isolating contact 13 is only indicated schematically. In fact, this coupling is designed so that the contact opens and remains open after tripping, even when the armature returns to its rest position.
  • the coil 10 is supplied with an excitation signal via the coil connections 15, which comes from a control device 16.
  • This control device 16 can evaluate any signals, for example the signal of a current sensor 17 or an impact acceleration sensor 18.
  • the special structure and the special control of the magnet system 9 are not important for the present invention. The only thing that is important is the presence of a magnet system with an iron circle, which is formed here, for example, by the yoke 11 and the armature 12.
  • a shunt line 20 is now led to the ground conductor 3, that is to say, for example, the connection point 21, between the load current conductor 2, specifically from a tap 19 on the side of the contact 13 facing away from the battery.
  • This shunt line 20 is, for example, in the form of a highly conductive sheet metal strip 22 through or close to the ferromagnetic circuit 11, 12, so that it crosses the ferromagnetic circuit approximately perpendicular.
  • a diode 23 is arranged in the shunt circuit 20 and is switched in the reverse direction with respect to the normally installed on-board battery 1.
  • the shunt circuit receives a high short-circuit current through the diode 23 only in the case of incorrect polarity of the external battery 7, which induces a magnetic flux via the conductor 20 in the ferromagnetic circuit of the yoke 11 and the armature 12, which causes the magnet system 9 to respond.
  • the armature 12 is thus attracted and opens the contact 13.
  • the voltage in the vehicle electrical system only corresponds to the voltage drop across the diode in the event of incorrect polarity and is therefore approximately -1 volt. This voltage is also only present for a very short time, since, as described, the short-circuit current flowing through the diode triggers the magnet system and opens the contact 13 within a few milliseconds.
  • the protective device has the advantage that, in comparison to the previous protective circuits with series diodes, it is no longer necessary to protect every individual electronic system against reverse polarity. In addition, the power conversion associated with each series diode is also eliminated. Due to the direct use of the short-circuit current in the magnet system, the system is independent of additional electronics, and it does not require any energy storage devices to be triggered. Furthermore, the system requires only a single diode and, if an electromagnet system is present as a disconnect switch anyway is just the shunt conductor. It is also very inexpensive and economical in terms of circuitry complexity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)
  • Secondary Cells (AREA)
  • Breakers (AREA)

Abstract

Ce dispositif protecteur comprend un interrupteur (13) connecté à la ligne de courant sous charge (2) et actionné par un système électromagnétique (9). Un circuit en dérivation mène du côté de l'interrupteur (13) opposé à la batterie jusqu'à une ligne de mise à la masse (3) via une diode polarisée dans le sens de blocage. La ligne de mise à la masse (3) croise ou traverse le circuit ferromagnétique du système électromagnétique (9). Lorsque les bornes de la batterie ne sont pas raccordées aux bons pôles, un fort courant de court-circuit passe à travers la diode (23) et induit une excitation dans le circuit ferromagnétique (11, 12) du système magnétique (9) qui soulève l'induit et ouvre l'interrupteur (13).
EP98906883A 1997-01-22 1998-01-22 Dispositif protecteur contre des erreurs de polarisation dans le reseau electrique de bord d'un vehicule Withdrawn EP0954894A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19702116A DE19702116C2 (de) 1997-01-22 1997-01-22 Schutzvorrichtung gegen Falschpolung im elektrischen Bordnetz eines Fahrzeuges
DE19702116 1997-01-22
PCT/EP1998/000337 WO1998033255A1 (fr) 1997-01-22 1998-01-22 Dispositif protecteur contre des erreurs de polarisation dans le reseau electrique de bord d'un vehicule

Publications (1)

Publication Number Publication Date
EP0954894A1 true EP0954894A1 (fr) 1999-11-10

Family

ID=7818013

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98906883A Withdrawn EP0954894A1 (fr) 1997-01-22 1998-01-22 Dispositif protecteur contre des erreurs de polarisation dans le reseau electrique de bord d'un vehicule

Country Status (6)

Country Link
EP (1) EP0954894A1 (fr)
JP (1) JP2001508639A (fr)
KR (1) KR20000070383A (fr)
BR (1) BR9807500A (fr)
DE (1) DE19702116C2 (fr)
WO (1) WO1998033255A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108183187A (zh) * 2018-03-05 2018-06-19 福州艾弗斯智能科技有限公司 一种电动力汽车电池防护装置

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19833984A1 (de) * 1998-07-10 2000-01-13 Ellenberger & Poensgen Schutzschalteinrichtung
DE19847669A1 (de) * 1998-10-15 2000-04-20 Delphi Automotive Systems Gmbh Fremdstartschaltung für eine Fahrzeugbatterie
DE19946733A1 (de) * 1999-09-29 2001-05-17 Tyco Electronics Logistics Ag Verfahren zur sicheren Ankopplung eines Fremdspannungsnetzes an ein Betriebsspannungsnetz und Schaltungsanordnung zur Durchführung des Verfahrens
DE19946744A1 (de) * 1999-09-29 2001-05-10 Tyco Electronics Logistics Ag Verfahren zur sicheren Ankopplung eines Fremdspannungsnetzes an ein Betriebsspannungsnetz und Schaltungsanordnung zur Durchführung des Verfahrens
DE19951095C2 (de) * 1999-10-23 2003-09-04 Daimler Chrysler Ag Vorrichtung zur Sicherung eines elektrischen Netzes
JP2001268784A (ja) * 2000-03-17 2001-09-28 Alps Electric Co Ltd 電源の逆接続防止回路
US6657839B2 (en) * 2000-08-25 2003-12-02 Tyco Electronics Corporation Protective relay
DE10047792A1 (de) * 2000-09-18 2002-03-28 Volkswagen Ag Verpolschutz für eine Batterie
US6486571B1 (en) * 2002-03-01 2002-11-26 Ford Global Technologies, Inc. Power delivery and connection circuit for an automotive vehicle
DE10237443A1 (de) * 2002-08-16 2004-02-26 Adam Opel Ag Vorrichtung zur Vermeidung einer Beschädigung elektrischer Komponenten eines Bordnetzes eines Kraftfahrzeuges

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2332951A (en) * 1942-01-28 1943-10-26 Gen Electric Battery charging control device
GB927650A (en) * 1959-02-25 1963-05-29 Ass Elect Ind Improvements in and relating to high speed electromagnetic trip mechanisms
DE1538584A1 (de) * 1966-01-17 1969-04-10 Inst F Energetik Primaerrelais zum Schutz elektrischer Anlageteile
US3659182A (en) * 1970-09-03 1972-04-25 Vln Corp Battery charging system with reverse battery protection
NL8703170A (nl) * 1987-12-31 1989-07-17 Holec Syst & Componenten Elektromagnetische schakelaar.
DE4110240C1 (en) * 1991-03-28 1992-10-08 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Vehicle current path protection device - separates battery from load upon occurrence of electrical fault

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9833255A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108183187A (zh) * 2018-03-05 2018-06-19 福州艾弗斯智能科技有限公司 一种电动力汽车电池防护装置
CN108183187B (zh) * 2018-03-05 2024-02-09 东莞市恒浩新能源科技有限公司 一种电动力汽车电池防护装置

Also Published As

Publication number Publication date
JP2001508639A (ja) 2001-06-26
BR9807500A (pt) 2000-03-21
DE19702116C2 (de) 1999-02-18
KR20000070383A (ko) 2000-11-25
DE19702116A1 (de) 1998-07-23
WO1998033255A1 (fr) 1998-07-30

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