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WO1995000993A1 - Circuit de coupure pour un chargeur de batterie - Google Patents

Circuit de coupure pour un chargeur de batterie Download PDF

Info

Publication number
WO1995000993A1
WO1995000993A1 PCT/US1994/006838 US9406838W WO9500993A1 WO 1995000993 A1 WO1995000993 A1 WO 1995000993A1 US 9406838 W US9406838 W US 9406838W WO 9500993 A1 WO9500993 A1 WO 9500993A1
Authority
WO
WIPO (PCT)
Prior art keywords
switch
current
battery
recharger
circuit
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.)
Ceased
Application number
PCT/US1994/006838
Other languages
English (en)
Inventor
Joseph A. Keating
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.)
Bolder Battery Inc
Original Assignee
Bolder Battery Inc
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 Bolder Battery Inc filed Critical Bolder Battery Inc
Priority to AU72086/94A priority Critical patent/AU7208694A/en
Publication of WO1995000993A1 publication Critical patent/WO1995000993A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature

Definitions

  • a resistor is in another circuit to the battery, so that opening the switch in the switch circuit diverts the current flow through the resistor circuit, thereby reducing the current from full current to trickle-charge current.
  • the circuit may also include a resistor between the zener diode and the battery to guard against surges in the constant current recharger to which the circuit is connected.
  • the device includes the safety aspect of a heat sensitive switch, which prevents a disastrous melting or explosion of the battery even if the device or the battery or recharger were to malfunction.
  • the battery is a 12 volt lead-acid cell of the Juergens thin-plate design mentioned above, although other battery packs and other voltages could be accommodated as well.
  • the zener diode 27 is 15V x 2W
  • resistor 28 is 8 ohm
  • resistor 34 is 8K ohm
  • the bimetallic switch 24 opens at 45°C.
  • the component values are illustrative only, and other values could be used instead.
  • the elements within the dotted line 40, namely the zener diode 27, resistor 28, bimetallic switch 24 and resistor 34, are thermocoupled.
  • resistor 32 When the bimetallic switch 24 opens, the current is diverted through resistor 32. Diverting the current from the bimetallic switch which has virtually no resistance to this high ohm resistor, causes the current through the main circuit 18 to drop from full charge to trickle charge. Because resistor 34 is part of the thermocouple to the bimetallic switch 24, the heat in the resistor 34 produced by the current flowing through it will act to keep the bimetallic switch 24 open. It can be appreciated that the resistor 32 may be replaced with some other circuit, such as a timing circuit, an indicator light or some other desired function. It can also be appreciated that other circuit configurations are possible and that the zener diode described above could be replaced with some other component or set of components, so long as there is a system for heating the bimetallic switch when the battery voltage increases.
  • the circuit may be physically separate from the battery.
  • the circuit may be built into a constant current recharger of the type used with nickel-cadmium batteries to allow that type of recharger to be used for lead-acid cells, or it may be a stand-alone adaptor which is connected and disconnected to such a recharger depending on whether the recharger is to be used with lead-acid batteries or nickel-cadmium batteries.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un procédé et un appareil pour recharger une batterie utilisant une source de courant constant. Un élément produisant de la chaleur tel qu'une diode Zener (27) est disposé en parallèle avec la batterie (20) à charger et il est couplé thermiquement à un commutateur sensible à la chaleur tel qu'un commutateur bimétallique (24) disposé en série avec la batterie. Une tension aux bornes de la diode Zener dépassant un niveau prédéterminé rend la diode Zener électroconductrice, ce qui provoque son échauffement, l'ouverture du commutateur et la coupure du courant.
PCT/US1994/006838 1993-06-17 1994-06-16 Circuit de coupure pour un chargeur de batterie Ceased WO1995000993A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU72086/94A AU7208694A (en) 1993-06-17 1994-06-16 Cutoff circuit for battery recharger

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7905693A 1993-06-17 1993-06-17
US08/079,056 1993-06-17

Publications (1)

Publication Number Publication Date
WO1995000993A1 true WO1995000993A1 (fr) 1995-01-05

Family

ID=22148138

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/006838 Ceased WO1995000993A1 (fr) 1993-06-17 1994-06-16 Circuit de coupure pour un chargeur de batterie

Country Status (2)

Country Link
AU (1) AU7208694A (fr)
WO (1) WO1995000993A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996021954A1 (fr) * 1995-01-09 1996-07-18 Motorola Inc. Dispositif simulant une temperature de batterie elevee utilise pour recharger les piles ioniques au lithium
DE19645305A1 (de) * 1996-11-04 1998-05-20 Braun Ag Antriebssystem für eine elektrisch angetriebene Küchenmaschine
WO1999010940A1 (fr) * 1997-08-22 1999-03-04 Duracell Inc. Rupteur de courant destine a des piles electrochimiques
GB2349284A (en) * 1999-04-22 2000-10-25 Aea Technology Plc Preventing overcharge of lithium cells

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3564383A (en) * 1968-01-31 1971-02-16 J D Electronics Ltd Battery charger utilizing bimetallic switch for automatic selection of 6- or 12-volt charging
US4031450A (en) * 1971-03-26 1977-06-21 The Gates Rubber Company Two step solid state battery charger
US4303877A (en) * 1978-05-05 1981-12-01 Brown, Boveri & Cie Aktiengesellschaft Circuit for protecting storage cells
US4513238A (en) * 1983-05-13 1985-04-23 Vivitar Corporation Automatic battery charger with thermal control
US4544876A (en) * 1983-12-16 1985-10-01 Solavolt International Voltage regulator
US4560915A (en) * 1984-08-23 1985-12-24 Wen Products, Inc. Electronic charging circuit for battery operated appliances
JPH0287935A (ja) * 1988-09-22 1990-03-28 Asahi Chem Ind Co Ltd 過充電防止回路
JPH02237437A (ja) * 1989-03-07 1990-09-20 Asahi Chem Ind Co Ltd 過充電防止装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3564383A (en) * 1968-01-31 1971-02-16 J D Electronics Ltd Battery charger utilizing bimetallic switch for automatic selection of 6- or 12-volt charging
US4031450A (en) * 1971-03-26 1977-06-21 The Gates Rubber Company Two step solid state battery charger
US4303877A (en) * 1978-05-05 1981-12-01 Brown, Boveri & Cie Aktiengesellschaft Circuit for protecting storage cells
US4513238A (en) * 1983-05-13 1985-04-23 Vivitar Corporation Automatic battery charger with thermal control
US4544876A (en) * 1983-12-16 1985-10-01 Solavolt International Voltage regulator
US4560915A (en) * 1984-08-23 1985-12-24 Wen Products, Inc. Electronic charging circuit for battery operated appliances
JPH0287935A (ja) * 1988-09-22 1990-03-28 Asahi Chem Ind Co Ltd 過充電防止回路
JPH02237437A (ja) * 1989-03-07 1990-09-20 Asahi Chem Ind Co Ltd 過充電防止装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996021954A1 (fr) * 1995-01-09 1996-07-18 Motorola Inc. Dispositif simulant une temperature de batterie elevee utilise pour recharger les piles ioniques au lithium
DE19645305A1 (de) * 1996-11-04 1998-05-20 Braun Ag Antriebssystem für eine elektrisch angetriebene Küchenmaschine
WO1999010940A1 (fr) * 1997-08-22 1999-03-04 Duracell Inc. Rupteur de courant destine a des piles electrochimiques
GB2349284A (en) * 1999-04-22 2000-10-25 Aea Technology Plc Preventing overcharge of lithium cells

Also Published As

Publication number Publication date
AU7208694A (en) 1995-01-17

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