WO2013015123A1 - Dispositif doté d'un accumulateur intégré - Google Patents

Dispositif doté d'un accumulateur intégré Download PDF

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Publication number
WO2013015123A1
WO2013015123A1 PCT/JP2012/067769 JP2012067769W WO2013015123A1 WO 2013015123 A1 WO2013015123 A1 WO 2013015123A1 JP 2012067769 W JP2012067769 W JP 2012067769W WO 2013015123 A1 WO2013015123 A1 WO 2013015123A1
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WO
WIPO (PCT)
Prior art keywords
battery
built
power
power transmission
charging
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/JP2012/067769
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English (en)
Japanese (ja)
Inventor
洋由 山本
真一 板垣
玉井　幹隆
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Publication of WO2013015123A1 publication Critical patent/WO2013015123A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H01M10/46—Accumulators structurally combined with charging apparatus
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/40—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data
    • H02J7/42—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data with electronic devices having internal batteries, e.g. mobile phones
    • 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 a battery built-in device such as a battery pack or a mobile phone provided with a rechargeable built-in battery, and more particularly to a battery built-in device including a built-in battery that is charged by carrying power by electromagnetic induction from a charging stand.
  • a battery built-in device has been developed in which power is transferred from a power transmission coil to a power reception coil by the action of electromagnetic induction, and the built-in battery is charged with power transferred from a charging stand. (See Patent Document 1)
  • Patent Document 1 describes a structure in which a power transmission coil that is excited by an AC power supply is built in a charging stand, and a battery that is electromagnetically coupled to the power transmission coil is built in a battery pack that is a battery built-in device. Further, the battery pack includes a circuit that rectifies the alternating current induced in the power receiving coil and supplies the battery to the battery for charging. According to this structure, the battery pack can be charged in a non-contact state by placing the battery pack on the charging stand.
  • the charging method in which the power transmission coil and the power receiving coil are electromagnetically coupled and the charging power of the battery is transmitted from the charging stand to the battery built-in device is, whether the battery built-in device such as a battery pack is powered from the charging stand. It is necessary to determine whether the charging stand is in a power transmission state or a non-power transmission state. This is to prevent wasteful power consumption of the internal battery in the non-power transmission state. For example, when the battery built-in device is removed from the charging stand and enters a non-power transmission state, the control circuit that controls charging of the built-in battery can be switched to the sleep state to eliminate wasteful power consumption. In addition, a battery built-in device including a pilot lamp that displays a charge state of the built-in battery needs to turn off the pilot lamp in a non-power transmission state.
  • the battery built-in device that determines a power transmission state in which power is transmitted from the charging stand and a non-power transmission state in which power is not transmitted detects an AC signal induced in the power receiving coil. This is because an AC signal is induced in the power receiving coil in the power transmission state and is not induced in the non-power transmission state.
  • the AC signal of the power receiving coil can be realized by an analog circuit that detects a peak voltage.
  • this circuit configuration requires a dedicated analog circuit in order to detect the peak voltage, so that there is a drawback that the circuit configuration is complicated and the component cost is increased.
  • This problem can be eliminated as a circuit that converts an AC signal induced in the power receiving coil into a digital signal by an A / D conversion circuit and makes a determination based on the output value of the digital signal.
  • a battery built-in device that incorporates an A / D conversion circuit and a microprocessor to control charging of the built-in battery must use the A / D conversion circuit and the microprocessor together to distinguish between a power transmission state and a non-power transmission state. Thus, it is possible to distinguish between the power transmission state and the non-power transmission state without providing any dedicated circuit.
  • the battery built-in device converts an AC signal induced in the power receiving coil into a digital signal by an A / D conversion circuit, detects an output of the A / D conversion circuit by a microprocessor, and transmits a power transmission state and a non-power transmission state. Can be determined.
  • the A / D conversion circuit converts an AC signal induced in the power receiving coil into a digital signal at a predetermined sampling period, and outputs the digital signal to the microprocessor.
  • a state in which any one of the digital signals successively input from the A / D conversion circuit is higher than a set value is a power transmission state, and a state where all the digital signals are lower than a set value is a non-power transmission state. judge.
  • FIG. 1 shows an AC signal induced in the power receiving coil in a state where the power transmitting coil carries power, that is, in a power transmitting state.
  • the A / D conversion circuit converts an alternating current signal into a digital signal at a constant cycle indicated by A, B, C, D..., That is, at a constant sampling cycle, and outputs it to the microprocessor.
  • the digital signal output from the A / D conversion circuit to the microprocessor fluctuates or does not become zero level. For this reason, the microprocessor compares the input digital signal with the set value, and determines that any digital signal is higher than the set value as the power transmission state.
  • the microprocessor determines that the state in which all signal levels input from the A / D conversion circuit are smaller than the set value is the non-power transmission state.
  • the sampling period of the A / D conversion circuit is synchronized with the frequency of the power transmission coil, and further, 0 of the AC signal induced in the power transmission coil.
  • the A / D conversion circuit converts to a digital signal in synchronization with the level, the digital signal output from the A / D conversion circuit is always 0 level. For this reason, the microprocessor cannot detect the AC signal induced in the power receiving coil, and there is a problem that the microprocessor erroneously determines that it is in the non-power transmission state despite the power transmission state.
  • the above disadvantages are eliminated. it can.
  • devices that carry power from a charging stand to a battery built-in device by magnetic induction do not specify a combination of the battery built-in device and the charging stand, and various battery built-in devices are charged by various charging stands.
  • the sampling cycle of the A / D conversion circuit of the built-in device and the AC frequency output from the charging stand cannot be set so as not to always synchronize. For this reason, in a specific combination, there is an adverse effect that the battery built-in device side erroneously determines that it is in the non-power transmission state even though the charging stand is in the power transmission state.
  • This adverse effect can be reduced by using an A / D conversion circuit that samples the A / D conversion circuit extremely short, that is, at a high speed.
  • the A / D conversion circuit with a short sampling period has high component costs, and even if it is set to a high speed, the frequency of the alternating current output from the power transmission coil of the charging stand is not specified. The probability of synchronizing with the sampling period cannot be completely eliminated. For this reason, the battery built-in device that determines the power transmission state and the non-power transmission state by converting the AC signal induced in the power receiving coil into a digital signal by the A / D conversion circuit has a drawback that it cannot be accurately determined by a specific combination. is there.
  • An important object of the present invention is to provide a battery built-in device that has a very simple circuit configuration and can accurately determine the power transmission state and the non-power transmission state of a charging stand without using a high-speed A / D conversion circuit. There is.
  • the battery built-in device of the present invention is a battery built-in device including a power receiving coil 11 that is electromagnetically coupled to the power transmission coil 41 of the charging base 4 to be set and supplies charging power to the built-in battery 12 for charging.
  • the AC detection circuit 17 detects an AC signal output from the AC signal 41.
  • the AC detection circuit 17 detects an AC signal induced in the power receiving coil 11 or a pulsating flow after rectification in which the AC is rectified.
  • the AC detection circuit 17 converts an analog signal induced in the power receiving coil 11 or a rectified analog signal into a digital signal, and transmits power from the charging stand 4 from the output of the A / D conversion circuit 18.
  • the A / D conversion circuit 18 converts the signal induced in the power receiving coil 11 or the rectified signal into a digital signal at random timing and outputs the digital signal to the microprocessor 19.
  • the signal input from the D conversion circuit 18 determines the power transmission state and the non-power transmission state.
  • the above-mentioned battery built-in devices use an inexpensive A / D conversion circuit without using a high-speed and expensive A / D conversion circuit, and further simplify the circuit configuration while maintaining a power transmission state and a non-power transmission state.
  • An A / D conversion circuit that converts an analog signal into a digital signal at random timing does not convert an AC signal or a rectified pulsating current induced in the power receiving coil at a constant sampling period into a digital signal.
  • the alternating current signal induced in the power receiving coil or the rectified pulsating flow changes at a constant frequency, that is, at a constant period.
  • the A / D conversion circuit converts an AC signal induced in the power receiving coil or a rectified pulsating flow into a digital signal at a timing that varies randomly rather than at a constant period. Therefore, the timing at which the A / D conversion circuit converts the AC signal induced in the power receiving coil or the pulsating flow after rectification into a digital signal does not always synchronize with the 0 level of the AC signal, and the AC signal is supplied to the power receiving coil.
  • a signal of a predetermined output level is output from the A / D conversion circuit to the microprocessor at any timing. Therefore, in a state where an AC signal is induced in the power receiving coil, that is, in a power transmission state of the charging stand, a predetermined level signal is input to the microprocessor at any timing, and the microprocessor accurately determines the power transmission state. .
  • the above battery built-in device does not need to determine the power transmission state and the non-power transmission state by shortening the sampling period of the A / D conversion circuit. For this reason, it is not necessary to use an A / D conversion circuit having a short sampling period, that is, high speed and high component cost, and the power transmission state can be accurately detected using an inexpensive A / D conversion circuit.
  • the A / D conversion circuit converts the period of conversion into a digital signal at random, the AC signal induced in the power receiving coil or the rectified pulsating flow is converted into a digital signal. It is possible to accurately determine the power transmission state and the non-power transmission state with a very simple circuit configuration in which the period of conversion into a signal is changed.
  • the battery built-in device of the present invention includes a charging load 20 that operates by supplying operating power from the built-in battery 12, and supplies the operating power to the charging load 20 in a state in which the microprocessor 19 determines that the power transmission state.
  • the supply of operating power from the built-in battery 12 to the charging load 20 can be cut off in a state in which it is determined as a non-power transmission state.
  • the above-described battery built-in device can reliably determine the non-power transmission state and can perform this state, and since it does not supply operating power from the built-in battery to the load during charging, it has a feature that can prevent wasteful power consumption of the built-in battery.
  • the battery built-in device of the present invention supplies operating power from the built-in battery 12 to the load 20 during charging, and also supplies DC power rectified from the alternating current induced in the power receiving coil 11, and the microprocessor 19 determines that it is in a non-power transmission state. In this state, the operating power supplied from the built-in battery 12 to the charging load 20 can be cut off.
  • the above-mentioned battery built-in devices can operate stably with both the built-in battery and the power induced in the power receiving coil in the state of supplying power to the load during charging. In addition, it is possible to eliminate wasteful power consumption of the built-in battery in a non-power transmission state.
  • the charging load 20 can include a control circuit 15 that controls the charge state of the built-in battery 12.
  • the above-mentioned battery built-in devices can charge the built-in battery in a favorable state by controlling the charge state of the built-in battery with the control circuit, and in the non-power transmission state where the built-in battery is not charged, the built-in battery by the control circuit There is a feature that can reduce wasteful power consumption.
  • the load 20 at the time of charging can be used as the indicator 30 that indicates the charged state of the built-in battery 12.
  • the above battery-equipped devices accurately display the charge status of the built-in battery to the user with the display in the power transmission state, and stop displaying on the display device in the non-power transmission state to reduce unnecessary power consumption.
  • the user can accurately display that the built-in battery is not charged.
  • FIG. 3 shows a block diagram of the charging stand 4 and the battery built-in device 1.
  • the battery built-in device 1 includes a built-in battery 12 that is set on the charging stand 4 and is charged with electric power transmitted from the charging stand 4.
  • the battery built-in device 1 includes a power receiving coil 11 that is electromagnetically coupled to a power transmission coil 41 of a charging base 4 to be set and supplies charging power to the built-in battery 12 for charging. Further, the battery built-in device 1 includes an AC detection circuit 13 that detects an AC signal output from the power transmission coil 41.
  • the charging stand 4 includes a power transmission coil 41 and an AC power source 42 connected to the power transmission coil 41. Furthermore, although not shown, the charging stand 4 is provided with a horizontal placing base on which the battery built-in device 1 is placed on the upper surface, and the power transmission coil 41 is disposed on the lower surface of the placing base.
  • the power transmission coil 41 is electromagnetically coupled to the power reception coil 11 of the battery built-in device 1 set on the platform, and transmits power to the power reception coil 11 by magnetic induction.
  • the AC power supply 42 detects that the battery-equipped device 1 is set on the platform and supplies AC power to the power transmission coil 41. This AC power supply 42 can detect that the battery built-in device 1 has been set on the platform by detecting a change in impedance of the power transmission coil 41.
  • the AC power supply 41 can also detect that the battery built-in device is set by a limit switch or the like that is turned on and off by the battery built-in device set on the platform.
  • the AC power supply 42 supplies AC power to the power transmission coil 41 in a state where the battery built-in device 1 is set on the platform.
  • the battery built-in device 1 set on the charging stand 4 is connected between a power receiving coil 11, a rectifier circuit 13 that rectifies AC power induced in the power receiving coil 11, and a rectifier circuit 13 and a built-in battery 12.
  • a switching element 14 that controls charging of the internal battery 12 and a control circuit 15 that switches the switching element 14 on and off are provided.
  • the power receiving coil 11 is disposed at a position where the battery built-in device 1 is close to the power transmitting coil 41 and efficiently electromagnetically coupled in a state where the battery built-in device 1 is set on the charging stand 4.
  • the battery built-in device 1 of FIG. 3 inputs the output of the power receiving coil 11 to the rectifier circuit 13 via the capacitor 16.
  • the rectifier circuit 13 rectifies the alternating current supplied from the power receiving coil 11 and converts it into direct current to charge the built-in battery 12, and supplies operating power to the control circuit 15.
  • FIG. 3 shows the rectifier circuit 13 as a single diode, but the rectifier circuit 13 rectifies the alternating current by switching the FET connected to the bridge on and off in synchronization with the alternating current induced in the power receiving coil 11.
  • a synchronous rectifier circuit that converts to direct current is suitable. This is because the voltage drop of the FET is small, and the current can be rectified efficiently and with little heat generation.
  • any circuit that can convert alternating current induced in the receiving coil 11 into direct current such as a diode bridge, can be used for the rectifier circuit.
  • the switching element 14 is controlled on and off by the control circuit 15.
  • the switching element 14 in the on state supplies the direct current output from the rectifier circuit 13 to the internal battery 12 to charge it.
  • the switching element 14 is switched off when the built-in battery 12 is fully charged or is in an abnormal state and stops charging.
  • the control circuit 15 detects the full charge of the built-in battery 12 and controls the switching element 14 from on to off, and detects the temperature of the built-in battery 12 to control the switching element 14.
  • the control circuit 15 turns on the switching element 14 until the built-in battery 12 is fully charged, and charges the built-in battery 12 with the direct current output from the rectifier circuit 13.
  • the control circuit 15 detects this, switches the switching element 14 from on to off, and terminates the charging of the internal battery 12.
  • the control circuit 15 detects a state in which the temperature of the internal battery 12 is higher than the set temperature
  • the control circuit 15 switches the switching element 14 to OFF and stops charging.
  • the control circuit 15 can adjust the current and voltage for charging the built-in battery 12 to optimum values by controlling the duty for switching the switching element 14 on and off.
  • the battery built-in device 1 includes an AC detection circuit 17 that detects a power transmission state and a non-power transmission state.
  • the AC detection circuit 17 detects an AC signal induced in the power receiving coil 11 and determines the power transmission state of the charging stand 4.
  • the AC detection circuit 17 in FIG. 3 includes an A / D conversion circuit 18 that converts an analog signal induced in the power receiving coil 11 into a digital signal, and the power transmission state of the charging stand 4 from the output of the A / D conversion circuit 18.
  • the A / D conversion circuit 18 does not convert the AC signal induced in the power receiving coil 11 at a constant sampling cycle into a digital signal.
  • the A / D conversion circuit 18 converts a signal induced in the power receiving coil 11 at a random timing into a digital signal and outputs the digital signal to the microprocessor 19.
  • FIG. 4 shows the timing at which the A / D conversion circuit 18 converts the AC signal induced in the power receiving coil 11 into a digital signal by A, B, C, D. As shown in this figure, the A / D conversion circuit 18 randomly changes the time interval of the timing for conversion to a digital signal without converting it to a digital signal at a constant period.
  • the A / D conversion circuit 18 includes an A / D converter (not shown) that converts an AC signal of the power receiving coil 11 into a digital signal, and a trigger circuit (not shown) that inputs a trigger signal to the A / D converter. It has.
  • the trigger circuit specifies the timing at which the analog signal input to the A / D converter is converted into a digital signal.
  • the trigger circuit inputs a trigger signal that randomly changes the time interval to the A / D converter.
  • the A / D converter converts the analog signal input from the power receiving coil 11 into a digital signal at the timing when the trigger signal is input from the trigger circuit, and outputs the digital signal to the microprocessor 19.
  • the microprocessor 19 compares the digital signal input from the A / D conversion circuit 18 with the set value, and determines the power transmission state and the non-power transmission state.
  • the microprocessor 19 receives a signal converted into a digital signal every time the A / D converter converts the AC signal of the power receiving coil 11 into a digital signal.
  • an AC signal is induced from the power transmitting coil 41 to the power receiving coil 11 by magnetic induction.
  • the A / D converter converts an AC signal induced in the power receiving coil 11 into a digital signal at a timing shown in FIG.
  • the digital signal input from the A / D converter to the microprocessor 19 is not limited to the level of the signal input at any timing as long as the AC signal is induced in the power receiving coil 11. At any timing, it becomes larger than the 0 level. Therefore, the microprocessor 19 can determine that any of the input digital signals is larger than the set value and determine the power transmission state.
  • the digital signal output from the A / D converter to the microprocessor 19 is always 0 level. Therefore, the microprocessor 19 determines that the input digital signal is lower than the set value and the non-power transmission state.
  • the above AC detection circuit 17 connects the input line 21 of the A / D conversion circuit 18 to the output side of the power receiving coil 11, and converts the AC signal induced in the power receiving coil 11 into A / D. It is detected by the conversion circuit 18.
  • the AC detection circuit is a voltage after rectification, and the pulsating current of half-wave rectification or full-wave rectification is detected by the A / D conversion circuit to determine the power transmission state and the non-power transmission state of the charging stand. it can.
  • the AC detection circuit detects a rectified pulsating flow obtained by rectifying the AC induced in the power receiving coil by an A / D conversion circuit, and determines a power transmission state of the charging stand. As shown by a chain line in FIG.
  • this AC detection circuit detects the pulsating flow after rectification by connecting the input line 22 of the A / D conversion circuit 18 to the output side of the rectification circuit 13.
  • the A / D conversion circuit 18 also converts the AC signal, which is a pulsating flow after rectification, into a digital signal at random timing without converting it into a digital signal at a constant period, and outputs it to the microprocessor 19. Therefore, in this specification, AC is used in a broad sense including not only AC of sine waves but also pulsating current that is output from the rectifier circuit and changes with time.
  • the battery built-in device 1 includes a charging load 20 to which operating power is supplied from the built-in battery 12 in a state in which the microprocessor 19 determines that the power is being transmitted.
  • the charging load 20 includes a control circuit 15 that controls the charging state of the built-in battery 12, and a display 30 that indicates the charging state of the built-in battery 12.
  • the battery built-in device 1 supplies operating power from the built-in battery 12 to the charging load 20 in a state where the microprocessor 19 determines that it is in a power transmission state. The supply of operating power to 20 is cut off. Therefore, useless power consumption of the internal battery 12 in the non-power transmission state can be prevented.
  • the battery built-in device 1 supplies operating power from the built-in battery 12 to the load 20 during charging in a state in which the microprocessor 19 determines that the power is being transmitted, and also includes DC power obtained by rectifying alternating current induced in the power receiving coil 11. In the state where the microprocessor 19 can determine that it is in the non-power transmission state, the operating power supplied from the built-in battery 12 to the charging load 20 can be cut off.
  • the control circuit 15 When the AC detection circuit 17 determines that the above-described battery built-in device 1 is in the power transmission state, the control circuit 15 is turned on, the switching element 14 is turned on, and the built-in battery 12 is charged with the power induced in the power receiving coil 11. Further, the display 30 displays to the user that the internal battery 12 is in a charged state.
  • the indicator 30 shown in the figure is a pilot lamp 31 composed of LEDs. The pilot lamp 31 is turned on to indicate that the built-in battery 12 is in a charged state.
  • the display can be a liquid crystal display or the like.
  • the switching element 14 is turned off by the microprocessor 19 or the transmission power is not supplied to the microprocessor 19, so that the shutdown state is established. There is no output from the control circuit 15 and the switching element 14 is turned off. Then, the battery built-in device 1 switches the control circuit 15 to the sleep mode and turns off the pilot lamp 31 that is the display device 30 to eliminate useless power consumption of the built-in battery 12.
  • the battery built-in device 1 in FIG. 3 is a mobile phone, and is composed of a battery pack 2 and a main device 3.
  • the battery built-in device 1 determines the power transmission state and the non-power transmission state with the battery pack 2 and transmits the information to the main device 3.
  • the main device 3 turns on the pilot lamp 31 in the power transmission state and turns off the pilot lamp 31 in the non-power transmission state.
  • an FET switch 32 is connected in series with the LED that is the pilot lamp 31, and the FET switch 32 is controlled to be turned on and off by the AC detection circuit 17.
  • the battery built-in device 1 in this figure lights the pilot lamp 31 in the power transmission state and turns off the pilot lamp 31 in the non-power transmission state, but the battery built-in device 1 composed of the battery pack 2 and the main body device 3 A signal indicating the power transmission state and the non-power transmission state is transmitted to the device 3 and various controls are performed on the main device 3 side, for example, power is supplied from the outside in the power transmission state. It is also possible to control such that the display is brightened or continuously displayed without turning off the liquid crystal display.
  • the battery built-in device 1 in FIG. 3 is composed of the battery pack 2 and the main body device 3, but the battery built-in device 1 of the present invention is not necessarily composed of the pack battery 2 and the main body device 3.
  • the battery 2 can be used alone.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Manufacturing & Machinery (AREA)
  • 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)
  • Secondary Cells (AREA)

Abstract

L'objectif est de déterminer précisément l'état de fourniture d'électricité et l'état de non-fourniture d'électricité d'une station de chargement, à l'aide d'une configuration de circuits extrêmement simple. L'invention concerne un dispositif avec un accumulateur intégré, comprenant : une bobine de réception électrique qui est couplée électromagnétiquement avec une bobine de fourniture électrique dans une station de chargement et qui charge un accumulateur intégré ; et un circuit de détection de courant alternatif qui détecte un signal alternatif envoyé à la bobine de réception électrique ou un courant de pulsation qui est obtenu après redressement à partir d'un courant alternatif, et qui détermine l'état de fourniture d'électricité de la station de chargement. Le circuit de détection de courant alternatif comprend un circuit de conversion A/N qui convertit en un signal numérique un signal analogique induit dans la bobine de réception électrique ou un signal analogique redressé ; et un microprocesseur qui détermine l'état de fourniture d'électricité de la station de chargement à partir de la sortie du circuit de conversion A/N. Le circuit de conversion A/N, à un instant aléatoire, convertit le signal induit dans la bobine de réception électrique ou le signal redressé pour donner un signal numérique et fournit celui-ci au microprocesseur, après quoi le microprocesseur détermine les états de fourniture d'électricité et les états de non-fourniture d'électricité, à partir des signaux injectés par le circuit de conversion A/N.
PCT/JP2012/067769 2011-07-22 2012-07-12 Dispositif doté d'un accumulateur intégré Ceased WO2013015123A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011161151A JP2014187725A (ja) 2011-07-22 2011-07-22 電池内蔵機器
JP2011-161151 2011-07-22

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WO2013015123A1 true WO2013015123A1 (fr) 2013-01-31

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WO2015182688A1 (fr) * 2014-05-28 2015-12-03 京セラ株式会社 Appareil électronique et procédé de notification de charge dans l'appareil électronique
JP2019022450A (ja) * 2013-03-08 2019-02-07 サムスン エレクトロニクス カンパニー リミテッド 無線電力送信器及びその制御方法

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