WO2014090751A1 - Circuit électrique comprenant un composant d'interruption pour bloquer l'alimentation électrique depuis une batterie lorsque la tension de la batterie est inférieure à un seuil, et dispositif comprenant un tel circuit électrique - Google Patents

Circuit électrique comprenant un composant d'interruption pour bloquer l'alimentation électrique depuis une batterie lorsque la tension de la batterie est inférieure à un seuil, et dispositif comprenant un tel circuit électrique Download PDF

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Publication number
WO2014090751A1
WO2014090751A1 PCT/EP2013/075964 EP2013075964W WO2014090751A1 WO 2014090751 A1 WO2014090751 A1 WO 2014090751A1 EP 2013075964 W EP2013075964 W EP 2013075964W WO 2014090751 A1 WO2014090751 A1 WO 2014090751A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical circuit
electric cell
circuit
cell
terminal
Prior art date
Application number
PCT/EP2013/075964
Other languages
English (en)
Inventor
Nicolas Duru
Original Assignee
L'oreal
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 L'oreal filed Critical L'oreal
Publication of WO2014090751A1 publication Critical patent/WO2014090751A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/24—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage
    • H02H3/243—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage for DC systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • 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
    • H02H11/006—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of too high or too low voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/01—Constructive details
    • A61H2201/0173—Means for preventing injuries
    • A61H2201/0176—By stopping operation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H23/00—Percussion or vibration massage, e.g. using supersonic vibration; Suction-vibration massage; Massage with moving diaphragms
    • A61H23/02—Percussion or vibration massage, e.g. using supersonic vibration; Suction-vibration massage; Massage with moving diaphragms with electric or magnetic drive
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to an electrical circuit comprising a load supplied by an electric cell.
  • the invention relates more particularly to an electrical circuit comprising a load supplied by an electric cell and a means avoiding too considerable a discharging of the electric cell.
  • the invention also relates to a device for cosmetic treatment, in particular for massage or for applying a cosmetic product, said device comprising such an electrical circuit.
  • cosmetic product is understood to mean any product as defined in Regulation (EC) No 1223/2009 of the European Parliament and Council of 30 November 2009 relating to cosmetic products.
  • This phenomenon can cause impairment of the cell, its chemical components then being able to spill out of their confinement enclosure. Another risk caused by this phenomenon is the exploding of the cell. Certain electric cells are more sensitive to this phenomenon than others, such being the case in particular for alkaline cells for example of the LR44 type whose voltage can fall from about 1 .5Volts to less than 0.6Volts between the start and the end of life of the cell, and wherein risks related to deep discharge can appear below a cell voltage of about OJVolts.
  • electrical devices comprise electronic components which cease to operate as soon as the supply voltage of the cell becomes low. Thereafter, the current demanded is very low and there is little chance of the deep discharge phenomenon occurring.
  • the current demanded is always considerable even if the voltage of the cell falls below a threshold onward of which the load ceases to operate.
  • the cell may then suffer deep discharge and risk leaking or exploding.
  • a circuit comprising a load linked to a power supply battery is known from document WO2007/079868 A1 .
  • electronic components control the power supply of a luminous telltale to inform the user that he must recharge the battery.
  • the electronic components do not make it possible to interrupt the circuit so as to prevent the current from flowing in the load.
  • the object of the present invention is therefore to provide an improved electrical circuit so as to alleviate the aforementioned drawbacks.
  • the invention proposes an electrical circuit comprising an electric cell, a load supplied by the electric cell, and an interruption component for the circuit exhibiting a threshold voltage value above which it is passing and below which it is blocking.
  • the interruption component is arranged in the electrical circuit in such a way that it is passing when the voltage of the electric cell is above said threshold voltage value and in such a way that it is blocking when the voltage of the electric cell is below said threshold voltage value.
  • the interruption component can be a transistor.
  • the transistor can be a field-effect transistor, comprising a Gate terminal, a Source terminal and a Drain terminal.
  • the transistor can be an N-channel MOFSET transistor, whose Gate terminal is linked directly to a first terminal of the electric cell, whose Source terminal is linked directly to the second terminal of the electric cell, and whose Drain terminal is linked downstream of the load, the load being linked upstream to the first terminal of the electric cell.
  • the threshold voltage value of the interruption component can lie between 0.45Volts and 1Volt, or indeed between OJVolts and 1Volt.
  • the electric cell can be an alkaline cell.
  • the electric cell can exhibit a nominal voltage of less than or equal to 3Volts, or indeed of less than or equal to 1 .5Volts.
  • the load can be at least one of the following elements: a motor, a heating element, and/or a luminous element.
  • the electrical circuit can also comprise a switch allowing a user to turn the electrical circuit on or off manually.
  • the electrical circuit can consist solely of an electric cell, of a load supplied by the electric cell, of an interruption component for the circuit exhibiting a threshold voltage value above which it is passing and below which it is blocking, and of a switch, these elements being linked together by electrical conductors.
  • the circuit is particularly simple and can accommodate to a large number of devices at reduced cost.
  • the invention also relates to a device for massage and/or application of cosmetic product comprising such an electrical circuit.
  • FIG. 1 represents a diagram of an exemplary electrical circuit according to the invention
  • FIG. 2 is a partial cutaway view of a first exemplary device comprising the electrical circuit of the invention
  • FIG. 3 is a partial cutaway view of a second exemplary device comprising the electrical circuit of the invention.
  • an electrical circuit 1 comprises an electric cell 2 linked to a load 3.
  • circuits are conventionally linked together by electrical conductors which can be electrical wires or tracks of a printed circuit.
  • upstream and downstream used in the subsequent description are defined by the conventional sense of the electric current, that is to say by considering that the current flows from upstream to downstream, exiting the electric cell via the positive terminal and passing through the electrical circuit heading for the negative terminal of the electric cell.
  • the electric cell 2 can be composed of a single electric cell as in the circuit represented, or by several electric cells for example mounted in series one after another.
  • the electric cell is preferably an alkaline cell, however as a variant the electric cell can be a lithium cell, or a zinc/silver cell.
  • the electric cell exhibits a nominal voltage of less than or equal to 3Volts, or indeed of less than or equal to 1 .5Volts.
  • the cell may be an electric cell of "stick cell” type or of "button cell” type.
  • the electric cell can be chosen from among the following formats defined by the International Electrotechnical Commission (IEC): LR03, LR06, LR41 , LR42, LR43, LR44, LR54, LR55, LR57, LR58, LR59, LR60, LR63, LR66, LR68, LR69.
  • the electric cell of the circuit of Figure 1 is an LR44 cell.
  • the electric cell is not rechargeable.
  • the cell can be a rechargeable accumulator for example of the nickel-cadmium (NiCd) type or nickel-metal hydride (NiMH) type.
  • the load 3 is for example a motor that can bring about a rotation motion.
  • the load can in particular be a motor of the "coin motor” type whose very high rotation speed associated with a flyweight makes it possible to generate vibrations.
  • the load can be a heating element such as a resistive wire, or a luminous element such as a light-emitting diode (LED) or a liquid- crystal display screen.
  • a heating element such as a resistive wire
  • a luminous element such as a light-emitting diode (LED) or a liquid- crystal display screen.
  • the load can be composed of a single load as in the circuit represented, or by several loads for example mounted in series one after another, or in parallel.
  • An upstream terminal of the load is linked to a first terminal of the cell in particular by an electrical conductor.
  • the first terminal of the cell is the positive terminal.
  • the upstream terminal of the load 3 is linked directly to the first terminal of the cell 2, that is to say no component giving rise to a potential difference between the positive terminal of the cell 2 and the upstream terminal of the load 3 is inserted between these two points.
  • a switch 4 allowing the user to open or close the electrical circuit can be positioned in series between the load and the cell .
  • the switch 4 can be positioned upstream or downstream of the cell. Indeed a switch is not considered to be a component giving rise to a potential difference since it acts as a simple electrical conductor consuming no energy in the closed position.
  • the electrical circuit 1 comprises an interruption component 5 for the circuit exhibiting a value of threshold voltage (Vth) measured between two terminals of said interruption component 5 and above which it is passing and below which it is blocking.
  • This threshold voltage value (Vth) is an intrinsic characteristic of said interruption component 5.
  • This interruption component 5 is mounted in series between the load 3 and the electric cell 2. In the example represented in Figure 1 , the interruption component 5 is mounted downstream of the load 3.
  • this interruption component 5 is arranged in the circuit in such a way that it is passing when the voltage of the electric cell 2 is above said threshold voltage value (Vth) and in such a way that it is blocking when the voltage of the electric cell is below said threshold voltage value (V t h).
  • the threshold voltage value (V t h) lies between 0.45Volts and 1 Volt, or indeed between OJVolts and 1 Volt, for example substantially equal to OJVolts.
  • the interruption component 5 of the example is a field-effect transistor of N-channel MOFSET type.
  • other types of interruption components can be used and, in particular, other types of transistors.
  • the interruption component 5 is a PMR280-UN- 1 15 transistor from the company NXP whose threshold voltage value (V t h) is substantially equal to OJVolts.
  • This transistor is advantageously chosen since its threshold voltage value corresponds to the value below which the deep discharge phenomenon occurs for an LR44 cell.
  • the transistor forming the interruption component 5 comprises a Gate terminal (G), a Source terminal (S) and a Drain terminal (D).
  • the Gate terminal (G) is linked directly to the first terminal of the electric cell 2, that is to say the positive terminal.
  • the Source terminal (S) is linked directly to the second terminal of the electric cell 2, that is to say the negative terminal.
  • V gs the voltage measured between the Gate terminal (G) and the Source terminal (S) is equal to the voltage across the terminals of the electric cell 2.
  • Drain terminal (D) is linked to the downstream terminal of the load 3.
  • the circuit 1 When the switch 4 is in the closed position, the circuit 1 operates as follows.
  • the transistor 5 As long as the voltage of the electric cell 2, that is to say V gs , is above the threshold voltage value (V t h), the transistor 5 is closed and the current can flow freely between the Drain terminal (D) and the Source terminal (S), the load 3 can therefore be supplied by the electric cell 2. Having regard to the low resistance in the closed state of the transistor 5, the loss caused by this additional component is negligible. On the other hand if the voltage of the electric cell 2, that is to say Vg S , falls below the threshold voltage value (V t h), the transistor 5 is opened and the current can no longer flow between the Drain terminal (D) and the Source terminal (S), the load 3 therefore cannot be supplied by the electric cell 2. The electric cell 2 hardly discharges any longer and its voltage is kept at a value substantially equal to the value of the threshold voltage (V t h), the deep discharge phenomenon is thus avoided.
  • the transistor is controlled directly by the voltage across the terminals of the electric cell 2, instead of being controlled by a setpoint originating from electronic components, for example of comparator type.
  • a device 1 10 onboard which is embedded an electrical circuit described hereinabove is described with reference to Figure 2.
  • This device 1 10 is a cosmetic product application apparatus such as a mascara applicator. It comprises a gripping cap 1 1 1 also serving as closure element for a recipient 1 12 containing the cosmetic product.
  • the cap 1 1 1 is prolonged by a rod 1 13 which dips into the recipient 1 12 when the cap 1 1 1 is positioned on the recipient 1 12.
  • the rod 1 13 comprises at its free end a product application member 1 14, for example a brush for applying mascara.
  • the cap 1 1 1 also contains a part of the electrical circuit which is not visible in the figure.
  • the cap 1 1 1 contains for example the cell, the interruption element and a switch 104 such as a push-button.
  • the load 103 is a resistive wire wound around the application member 1 14 so as to heat the product during application.
  • the cap 1 1 1 can furthermore comprise a vibrating motor, or a rotary motor driving the rod in rotation about its elongation axis.
  • the cap 1 1 1 can also comprise a luminous telltale.
  • FIG. 3 Another exemplary device 210 onboard which is embedded an electrical circuit described hereinabove is described with reference to Figure 3.
  • the electrical circuit is mounted on a printed circuit comprising a cell 202, a transistor 205 and a load 203.
  • This device 210 is a massage apparatus in particular for a cosmetic treatment.
  • the device comprises a gripping portion 21 1 and an application surface 212.
  • the application surface 212 is for example made of metal to afford a cold effect when it is placed in contact with the user's skin.
  • the load 203 of the circuit is a vibrating motor for producing a massage effect when the application surface 212 is placed in contact with the user's skin.
  • a cosmetic product can be applied independently before, during or after massage with the device.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un circuit électrique comprenant une cellule électrique, une charge alimentée par la cellule électrique et un composant d'interruption pour le circuit qui présente une valeur de tension de seuil au-dessus de laquelle il est passant et au-dessous de laquelle il est bloquant. Selon l'invention, le circuit électrique est caractérisé en ce que le composant d'interruption est disposé dans le circuit de telle sorte qu'il est passant lorsque la tension de la cellule électrique est supérieure à ladite valeur de tension de seuil et de telle sorte qu'il est bloquant lorsque la tension de la cellule électrique est inférieure à ladite valeur de tension de seuil. L'invention concerne également un dispositif de massage et/ou d'application d'un produit cosmétique comprenant un tel circuit électrique.
PCT/EP2013/075964 2012-12-12 2013-12-09 Circuit électrique comprenant un composant d'interruption pour bloquer l'alimentation électrique depuis une batterie lorsque la tension de la batterie est inférieure à un seuil, et dispositif comprenant un tel circuit électrique WO2014090751A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR1261951A FR2999354A1 (fr) 2012-12-12 2012-12-12 Circuit electrique comportant un composant du coupure dudit circuit, et dispositif comportant un tel circuit electrique
FR1261951 2012-12-12
US201361756070P 2013-01-24 2013-01-24
US61/756,070 2013-01-24

Publications (1)

Publication Number Publication Date
WO2014090751A1 true WO2014090751A1 (fr) 2014-06-19

Family

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Family Applications (1)

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PCT/EP2013/075964 WO2014090751A1 (fr) 2012-12-12 2013-12-09 Circuit électrique comprenant un composant d'interruption pour bloquer l'alimentation électrique depuis une batterie lorsque la tension de la batterie est inférieure à un seuil, et dispositif comprenant un tel circuit électrique

Country Status (2)

Country Link
FR (1) FR2999354A1 (fr)
WO (1) WO2014090751A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4086525A (en) 1976-12-28 1978-04-25 General Electric Company Circuit for preventing overdischarge of a battery
EP0512340A1 (fr) 1991-04-26 1992-11-11 Sony Corporation Dispositif protecteur contre charger en excès et dispositif protecteur contre décharge profonde pour la batterie d'accumulateurs secondaire
US5179337A (en) * 1991-11-13 1993-01-12 International Business Machines Corporation Over-discharge protection for rechargeable batteries
EP0525744A1 (fr) 1991-07-31 1993-02-03 Sony Corporation Circuit pour la protection contre les charges et les décharges excessives des batteries seondaires
EP0588615A2 (fr) 1992-09-17 1994-03-23 Sony Corporation Circuits de protection de batterie
DE19603117A1 (de) * 1995-02-17 1996-08-29 Int Rectifier Corp Verpolungs-Schutzschaltung
WO2000016429A1 (fr) * 1998-09-16 2000-03-23 Tyco Electronics Uk Limited Protection de piles contre des decharges excessives
US6410997B1 (en) * 1998-04-17 2002-06-25 Sarnoff Corporation Power source for a hearing aid
WO2007079868A1 (fr) 2005-12-29 2007-07-19 Braun Gmbh Visualisation d’un état de décharge
US20070195564A1 (en) * 2006-02-22 2007-08-23 Arbesman Aaron W Battery low-voltage cutoff circuit
WO2011148302A1 (fr) * 2010-05-27 2011-12-01 L'oreal Dispositif de traitement cosmétique comprenant un moteur électrique

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4086525A (en) 1976-12-28 1978-04-25 General Electric Company Circuit for preventing overdischarge of a battery
EP0512340A1 (fr) 1991-04-26 1992-11-11 Sony Corporation Dispositif protecteur contre charger en excès et dispositif protecteur contre décharge profonde pour la batterie d'accumulateurs secondaire
EP0525744A1 (fr) 1991-07-31 1993-02-03 Sony Corporation Circuit pour la protection contre les charges et les décharges excessives des batteries seondaires
US5179337A (en) * 1991-11-13 1993-01-12 International Business Machines Corporation Over-discharge protection for rechargeable batteries
EP0588615A2 (fr) 1992-09-17 1994-03-23 Sony Corporation Circuits de protection de batterie
DE19603117A1 (de) * 1995-02-17 1996-08-29 Int Rectifier Corp Verpolungs-Schutzschaltung
US6410997B1 (en) * 1998-04-17 2002-06-25 Sarnoff Corporation Power source for a hearing aid
WO2000016429A1 (fr) * 1998-09-16 2000-03-23 Tyco Electronics Uk Limited Protection de piles contre des decharges excessives
WO2007079868A1 (fr) 2005-12-29 2007-07-19 Braun Gmbh Visualisation d’un état de décharge
US20070195564A1 (en) * 2006-02-22 2007-08-23 Arbesman Aaron W Battery low-voltage cutoff circuit
WO2011148302A1 (fr) * 2010-05-27 2011-12-01 L'oreal Dispositif de traitement cosmétique comprenant un moteur électrique

Also Published As

Publication number Publication date
FR2999354A1 (fr) 2014-06-13

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