JP2014150591A - Battery pack for no-contact charging - Google Patents
Battery pack for no-contact charging Download PDFInfo
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- JP2014150591A JP2014150591A JP2011116556A JP2011116556A JP2014150591A JP 2014150591 A JP2014150591 A JP 2014150591A JP 2011116556 A JP2011116556 A JP 2011116556A JP 2011116556 A JP2011116556 A JP 2011116556A JP 2014150591 A JP2014150591 A JP 2014150591A
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- 238000007600 charging Methods 0.000 title claims abstract description 108
- 230000005611 electricity Effects 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000010280 constant potential charging Methods 0.000 description 38
- 230000001360 synchronised effect Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- 238000010277 constant-current charging Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 210000004899 c-terminal region Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
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- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
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- 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
- 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
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- 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
Abstract
Description
本発明は、電池パックの無接点充電時における充電状態の表示に関する技術であって、無接点充電時に、既存の端子を使用して、電子機器本体の充電量表示の誤差表示を改善するものである。 The present invention relates to a display of the state of charge during contactless charging of a battery pack, and improves the error display of the charge amount display of the electronic device body using the existing terminals during contactless charging. is there.
図１は、従来の全体構成図である。充電回路１０１は、外部給電による電源により電池パックを充電する回路である。ＣＰＵ１０２及びＲ（検出抵抗）１０４、ＦＧＩＣ（フェールゲージＩＣ）１０５と連動し、充電状態を監視している。
無接点充電時による電池パックの充電方法は、本体に内蔵された２次側コイル（本体内蔵）１０３及び同期整流回路を経由して、外部給電時と同様にＣＰＵ１０２及びＲ（検出抵抗）１０４、ＦＧＩＣ１０５と連動し、充電状態を監視しており、本体で直接制御している。
FIG. 1 is a diagram showing the entire configuration of the prior art. The charging circuit 101 is a circuit that charges the battery pack with a power source by external power feeding. The state of charge is monitored in conjunction with the CPU 102, R (detection resistor) 104, and FGIC (fail gauge IC) 105.
The battery pack is charged by non-contact charging through a secondary coil (built-in main body) 103 and a synchronous rectifier circuit built in the main body, and the CPU 102 and R (detection resistor) 104, In conjunction with the FGIC 105, the state of charge is monitored and directly controlled by the main body.
従って特許文献１にも記載されているように、本体に内蔵されているフェールゲージ（残量表示）回路を経由して計測された電気量が電池パックに充電される為、電池残量表示に誤差等は発生せず問題は無い。 Therefore, as described in Patent Document 1, since the amount of electricity measured via a fail gauge (remaining amount display) circuit built in the main body is charged to the battery pack, the remaining battery amount is displayed. There is no problem because no error occurs.
２次側コイル２０３及び同期整流ＩＣ２０６を電池パックに内蔵した場合、１次側無接点充電装置から２次側コイル２０３及び同期整流ＩＣ２０６を通じた充電容量情報を、本体のフェールゲージ（残量表示）回路に伝えるためには、電池パックに充電用のプラス端子１０６、マイナス端子１０８、サーミスタ端子１０７以外に、電池パックの充電情報を電子機器本体に通知するフェールゲージ端子を別途設けなければならず、端子数が増加してしまう。 When the secondary side coil 203 and the synchronous rectification IC 206 are built in the battery pack, the charge capacity information from the primary side non-contact charging device through the secondary side coil 203 and the synchronous rectification IC 206 is obtained from the fail gauge (remaining amount display) of the main body. In order to communicate to the circuit, in addition to the positive terminal 106 for charging, the negative terminal 108, and the thermistor terminal 107, the battery pack must be provided with a fail gauge terminal for notifying the charging information of the battery pack to the electronic device body, The number of terminals will increase.
端子数が増加した場合、電子機器本体も、端子数に応じて制御しなければならず、電子機器本体側の制御が複雑になり、これにより、電子機器本体側の消費電力が増加してしまうという課題があった。 When the number of terminals increases, the electronic device main body must also be controlled according to the number of terminals, and the control on the electronic device main body side becomes complicated, thereby increasing the power consumption on the electronic device main body side. There was a problem.
２次側コイル２０３及び同期整流回路２０６を電池パックに内蔵した場合、無接点充電装置からの充電容量情報が、携帯機本体のフェールゲージ（残量表示）回路に伝わらないので充電しているにも拘わらずフェールゲージ機能がその情報を認識しない。
その為、電子機器側の電池残量表示が、無接点充電時に電池パック内の２次側コイル２０３及び同期整流回路２０６を通した充電量を認識しないため増加せず、電子機器側は、電池残量が実際は増えているにも拘わらず差が生じ、誤表示をしてしまう。
When the secondary coil 203 and the synchronous rectifier circuit 206 are built in the battery pack, charging capacity information from the non-contact charging device is not transmitted to the fail gauge (remaining amount display) circuit of the portable device body, so that charging is performed. Nevertheless, the fail gauge function does not recognize the information.
Therefore, the battery remaining amount display on the electronic device side does not increase because it does not recognize the amount of charge that has passed through the secondary coil 203 and the synchronous rectifier circuit 206 in the battery pack at the time of contactless charging, and the electronic device side Even though the remaining amount is actually increasing, a difference occurs and the display error occurs.
本発明の無接点充電用電池パックは、電池パック内のＣＰＵに無線点充電で充電された充電電気量のカウント機能を設け、充電中断時又は、充電終了時にカウントに応じた信号を既存端子から機器本体に送ることにより、電池パック端子数を増やすことなく非接触充電の充電量を機器本体に伝えることができ、フェールゲージ（残量表示）機能の誤表示を回避することができるという効果を有する。 The battery pack for contactless charging of the present invention is provided with a function for counting the amount of charge charged by wireless point charging in the CPU in the battery pack, and a signal corresponding to the count at the time of interruption of charging or at the end of charging from an existing terminal. By sending it to the device body, the amount of non-contact charge can be transmitted to the device body without increasing the number of battery pack terminals, and erroneous display of the fail gauge (remaining amount display) function can be avoided. Have.
本発明の無接点充電用電池パックは、充電中断時又は、充電終了時にカウントに応じた信号を、既存端子であるコントロール端子から機器本体に送ることにより、本体と電池パック間を接続しているフェールゲージ端子を削減しても、非接触充電の充電量を機器本体に伝えることができるという効果を有する。 The battery pack for contactless charging according to the present invention connects the main body and the battery pack by sending a signal corresponding to the count at the time of charging interruption or at the end of charging from the control terminal which is an existing terminal to the device main body. Even if the number of fail gauge terminals is reduced, it is possible to transmit the charge amount of non-contact charge to the device body.
本発明の無接点充電用電池パックは、充電中断時又は、充電終了時にカウントに応じた信号を、既存端子であるサーミスタ端子から重畳して機器本体に送ることにより、本体と電池パック間を接続しているコントロール端子およびフェールゲージ端子を削減して電池パックの端子数を減らしても、非接触充電の充電量を機器本体に伝えることができるという効果を有する。 The battery pack for non-contact charging according to the present invention connects between the main body and the battery pack by superimposing a signal corresponding to the count at the time of charging interruption or at the end of charging from the thermistor terminal which is an existing terminal to the device main body. Even if the number of control terminals and fail gauge terminals being used is reduced to reduce the number of terminals of the battery pack, the amount of charge of non-contact charging can be transmitted to the device body.
本発明によれば、２次側コイル及び同期整流回路を通した無接点充電での充電容量を電池パック内部で多段階にカウントし、充電終了時もしくは中断時に本体に伝えるという構成にしたことにより、２次側コイル２０３及び同期整流回路２０６を通じた電池充電量情報を常時送る必要が無く、充電終了時もしくは、充電中断時に電子機器本体に、コントロール端子２０４より電池充電情報を送信する事ですむので、本体フェールゲージ回路及びＣＰＵの負荷を軽減でき消費電力の減少をという効果が得られる。
同時に、２次側コイル及び同期整流回路を電池パックに内蔵時に増加される電池パック本体間の端子数を１端子もしくは０に減らすことができ、同時に本体内部の周辺回路を削減でき、実装面積の削減による機器の小型化が実現できるという効果が得られる。
According to the present invention, the charging capacity in contactless charging through the secondary coil and the synchronous rectification circuit is counted in multiple stages inside the battery pack, and is transmitted to the main body when charging is completed or interrupted. There is no need to constantly send battery charge information through the secondary coil 203 and the synchronous rectifier circuit 206, and it is only necessary to send battery charge information from the control terminal 204 to the electronic device main body when charging is completed or when charging is interrupted. Therefore, it is possible to reduce the load on the main body fail gauge circuit and the CPU and to reduce the power consumption.
At the same time, the number of terminals between the battery pack bodies, which is increased when the secondary coil and the synchronous rectifier circuit are built in the battery pack, can be reduced to 1 terminal or 0, and peripheral circuits inside the body can be reduced at the same time. The effect that the miniaturization of the apparatus by reduction is realizable is acquired.
以下に、本発明の実施の形態について、図面を参照しながら説明する。図２は、本発明の実施の形態１における全体構成図である。 Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is an overall configuration diagram according to Embodiment 1 of the present invention.
充電回路１０１、２次側コイル１０３、検出抵抗１０４、フェールゲージＩＣ１０５は、背景技術で説明したものと同じであるので説明は、省略する。ＣＰＵ２０１は、電池パック内に内蔵された２次側コイル２０３及び同期整流ＩＣ２０６をコントロールしている。さらに検出抵抗２０２を監視することにより充電機能も有している。コントロール端子２０４は、ＣＰＵ２０１の状態を本体に通知する為のものである。フェールゲージ端子２０５は、無接点充電時に２次側コイル２０３より受電された電流を本体にあるフェールゲージＩＣ１０５に送る為のものである。 Since the charging circuit 101, the secondary coil 103, the detection resistor 104, and the fail gauge IC 105 are the same as those described in the background art, description thereof is omitted. The CPU 201 controls the secondary coil 203 and the synchronous rectification IC 206 built in the battery pack. Furthermore, it has a charging function by monitoring the detection resistor 202. The control terminal 204 is for notifying the main body of the state of the CPU 201. The fail gauge terminal 205 is for sending the current received from the secondary coil 203 to the fail gauge IC 105 in the main body during non-contact charging.
無接点充電時に、２次側コイル２０３より受電された電力は、同期整流回路を経由して電池パックに充電される。この際、電池パックに内蔵されたＣＰＵ２０１により充電制御を行い検出抵抗２０２の両端電位差より充電電流を監視しているが、本体のフェールゲージＩＣ１０５の検出抵抗１０４を経由することにより本体内部でも充電電気量の監視を行っている。 During contactless charging, the power received from the secondary coil 203 is charged into the battery pack via the synchronous rectification circuit. At this time, the charging control is performed by the CPU 201 built in the battery pack and the charging current is monitored from the potential difference between both ends of the detection resistor 202. However, the charging electric current is also detected inside the main body via the detection resistor 104 of the fail gauge IC 105 of the main body. The amount is monitored.
また同時に、無接点充電時の充電状態を電池パックにあるＣＰＵ２０１によりコントロール端子２０４を経由して送っている。 At the same time, the state of charge during contactless charging is sent via the control terminal 204 by the CPU 201 in the battery pack.
図３は、本発明の実施の形態１における構成図である。図３において、図２と同じ構成については、説明を省略する。 FIG. 3 is a configuration diagram according to the first embodiment of the present invention. In FIG. 3, the description of the same configuration as in FIG. 2 is omitted.
電池パックに充電する充電パッドには、１次側コイル３０１と伝送回路３０２を有する。 The charging pad for charging the battery pack includes a primary coil 301 and a transmission circuit 302.
本実施の形態では、電池パックに内蔵された２次側コイル２０３より受電された場合においてＣＰＵ２０１で充電電気量をカウント処理し、その情報を、コントロール端子を経由して送ることにより、本体と電池パック間を接続しているフェールゲージ端子２０５を削減することができる。 In the present embodiment, when the power is received from the secondary coil 203 built in the battery pack, the CPU 201 counts the amount of charged electricity, and sends the information via the control terminal, whereby the main body and the battery The fail gauge terminals 205 connecting the packs can be reduced.
図４は、本発明の実施の形態２における構成図である。図４において、図２と同じ構成については、説明を省略する。 FIG. 4 is a configuration diagram according to the second embodiment of the present invention. 4, the description of the same configuration as that in FIG. 2 is omitted.
本実施の形態では、電池パックに内蔵された２次側コイル２０３より受電された場合においてＣＰＵ２０１で充電電気量をカウント処理し、その情報をサーミスタ端子１０７に重畳して送ることにより、本体と電池パック間を接続しているコントロール端子２０４及びフェールゲージ端子２０５を削減することができる。 In the present embodiment, when the power is received from the secondary coil 203 incorporated in the battery pack, the CPU 201 counts the amount of charge and sends the information superimposed on the thermistor terminal 107 to thereby send the main body and the battery. The control terminals 204 and the fail gauge terminals 205 connecting the packs can be reduced.
図５は、本発明の実施の形態１における充電電気量のカウント処理フローチャートである。図５を用いて、実施の形態１の動作について説明する。 FIG. 5 is a flowchart of the process for counting the amount of charge in the first embodiment of the present invention. The operation of the first embodiment will be described with reference to FIG.
定電流充電（ＣＣ）とは、一定電流を電池に印加する充電方法である。定電圧充電（ＣＶ）とは、一定電圧を電池に印加する充電方法であり、充電終期に電流が減衰する。リチウム系二次電池では、この定電流・定電圧充電技術が採用される。 Constant current charging (CC) is a charging method in which a constant current is applied to a battery. Constant voltage charging (CV) is a charging method in which a constant voltage is applied to the battery, and the current decays at the end of charging. This constant current / constant voltage charging technology is employed in lithium secondary batteries.
図５において非接触充電装置で充電スタートされた際に、電池パック内部のＣＰＵ２０１は、電池の残容量によってＣＣ（定電流充電）もしくは、ＣＶ（定電圧充電）を判断し実行する（ステップ１）。 In FIG. 5, when charging is started by the non-contact charging device, the CPU 201 inside the battery pack determines CC (constant current charging) or CV (constant voltage charging) based on the remaining capacity of the battery and executes it (step 1). .
図３において、２次側コイル２０３、同期整流ＩＣ２０６を経由して充電電流は、検出抵抗２０２の両端電圧をＣＰＵ２０１が監視している。 In FIG. 3, the CPU 201 monitors the voltage across the detection resistor 202 as the charging current via the secondary coil 203 and the synchronous rectification IC 206.
その際ＣＰＵ２０１は、充電電流と充電電圧を計算し、定電流充電（ＣＣ）か定電圧充電（ＣＶ）なのかを判断する（ステップ１）。定電流充電（ＣＣ）と判断された場合は、定電流充電（ＣＣ）を開始する（ステップ２）。同時にＣＰＵ２０１は、定電圧充電（ＣＣ）時間をカウントする（ステップ３）。ＣＰＵ２０１が、定電流充電（ＣＣ）を終了し定電圧充電（ＣＶ）に移行するかの判断をする（ステップ４）。 At that time, the CPU 201 calculates the charging current and the charging voltage, and determines whether the charging is constant current charging (CC) or constant voltage charging (CV) (step 1). If it is determined that constant current charging (CC), constant current charging (CC) is started (step 2). At the same time, the CPU 201 counts constant voltage charging (CC) time (step 3). The CPU 201 determines whether to end the constant current charging (CC) and shift to the constant voltage charging (CV) (step 4).
ステップ４でＣＣ（定電流充電）が中断した場合は、ＣＰＵ２０１は、算出した充電量情報をコントロール端子２０４より本体に送出する（ステップ５）。ステップ５で送出された情報に基づき本体の電池バーを処理する（ステップ１１）。 When CC (constant current charging) is interrupted in step 4, the CPU 201 sends the calculated charge amount information to the main body from the control terminal 204 (step 5). The battery bar of the main body is processed based on the information sent in step 5 (step 11).
ステップ４でＣＰＵ２０１が、定電圧充電（ＣＣ）完了と判断すると、ＣＰＵ２０１は、定電流充電（ＣＣ）での充電量情報を算出する（ステップ６）。その後、同期整流ＩＣ２０６は、定電圧充電（ＣＶ）での充電を開始する（ステップ７）。同時にＣＰＵ２０１は、定電圧充電（ＣＶ）充電量情報の計算を開始する（ステップ８）。
ＣＰＵ２０１は、途中に定電圧充電（ＣＶ）が中断されるか、もしくは、定電圧充電（ＣＶ）が完了したかの判断をする（ステップ９）。
When the CPU 201 determines in step 4 that the constant voltage charging (CC) is completed, the CPU 201 calculates charge amount information in the constant current charging (CC) (step 6). Thereafter, the synchronous rectification IC 206 starts charging by constant voltage charging (CV) (step 7). At the same time, the CPU 201 starts calculating constant voltage charge (CV) charge amount information (step 8).
The CPU 201 determines whether the constant voltage charging (CV) is interrupted in the middle or whether the constant voltage charging (CV) is completed (step 9).
ステップ９でＣＰＵ２０１が、定電圧充電（ＣＶ）が中断された場合は、ＣＰＵ２０１は、算出した充電量情報をコントロール端子２０４より本体に送出する（ステップ１０）。
ステップ１０で送出された情報に基づき本体の電池バーを処理する（ステップ１２）。ステップ９でＣＰＵ２０１が、充電完了したと判断した場合は、算出した充電量情報をコントロール端子２０４より本体に送出する。
When the constant voltage charging (CV) is interrupted in step 9, the CPU 201 sends the calculated charge amount information to the main body from the control terminal 204 (step 10).
The battery bar of the main body is processed based on the information sent out in step 10 (step 12). If the CPU 201 determines in step 9 that charging has been completed, the calculated charge amount information is sent from the control terminal 204 to the main body.
ステップ９で送出された充電完了の情報に基づき、充電量情報の処理をする（ステップ１３）。 Based on the information on the completion of charging sent in step 9, the charge amount information is processed (step 13).
図６〜図１１は、実際に電池パックが無接点充電回路を経由して充電された場合の充電量情報をまとめた物である。 6 to 11 are summaries of charge amount information when the battery pack is actually charged via the contactless charging circuit.
定電流充電（ＣＣ）と定電圧充電（ＣＶ）の説明をするにあたり、図６〜図１１のグラフは、横軸にカウント時間（t）,縦軸に充電電流（I）としている。定電流充電（ＣＣ）領域を３分割、定電圧充電（ＣＶ）領域を２分割としている。 In describing the constant current charging (CC) and the constant voltage charging (CV), in the graphs of FIGS. 6 to 11, the horizontal axis represents count time (t) and the vertical axis represents charging current (I). The constant current charge (CC) region is divided into three, and the constant voltage charge (CV) region is divided into two.
図６は、充電バー０（完全放電電池）を無接点充電装置により充電した場合に、
パターン1はＣＣ:第１の領域より時間カウントが開始されそのＣＣ：第１領域で充電が中断された場合とする。パターン２は、同様にＣＣ：第２領域で充電が中断された場合とする。パターン３は、ＣＣ：第３領域で充電が中断された場合とする。
FIG. 6 shows that when charging bar 0 (fully discharged battery) is charged by a non-contact charging device,
Pattern 1 is a case where time counting is started from CC: the first area and charging is interrupted in the CC: first area. Similarly, pattern 2 is a case where charging is interrupted in the CC: second region. Pattern 3 is a case where charging is interrupted in the CC: third region.
また、充電が中断されず、ＣＶ充電に移行した場合にパターン４として、ＣＶ：第１の領域で中断された場合とする。同様にパターン５は、ＣＶ：第２の領域で中断された場合とする。充電が中断されずに完了した場合は、パターン６とする。 In addition, when charging is not interrupted and the process shifts to CV charging, pattern 4 is assumed to be interrupted in CV: first region. Similarly, pattern 5 is assumed to be interrupted in the CV: second area. If the charging is completed without interruption, pattern 6 is used.
図７は、充電バー１の状態の電池を無接点充電装置により充電した場合に、パターン1はＣＣ:第１の領域より時間カウントが開始されそのＣＣ：第１領域で充電が中断された場合とする。パターン２は、同様にＣＣ：第２領域で充電が中断された場合とする。
パターン３は、ＣＣ：第３領域で充電が中断された場合とする。
FIG. 7 shows a case where the battery in the state of the charging bar 1 is charged by the non-contact charging device, and pattern 1 starts counting time from CC: the first area and charging is interrupted in the CC: first area. And Similarly, pattern 2 is a case where charging is interrupted in the CC: second region.
Pattern 3 is a case where charging is interrupted in the CC: third region.
また、充電が中断されず、ＣＶ充電に移行した場合にパターン４として、ＣＶ：第１の領域で中断された場合とする。同様にパターン５は、ＣＶ：第２の領域で中断された場合とする。充電が中断されずに完了した場合は、パターン６とする。 In addition, when charging is not interrupted and the process shifts to CV charging, pattern 4 is assumed to be interrupted in CV: first region. Similarly, pattern 5 is assumed to be interrupted in the CV: second area. If the charging is completed without interruption, pattern 6 is used.
図８は、充電バー２の状態の電池を無接点充電装置により充電した場合に、パターン1はＣＣ:第２の領域より時間カウントが開始されそのＣＣ：第２領域で充電が中断された場合とする。パターン２は、ＣＣ：第３領域で充電が中断された場合とする。 FIG. 8 shows a case where the battery in the state of the charging bar 2 is charged by a non-contact charging device, and pattern 1 starts counting time from CC: the second area, and charging is interrupted in the CC: second area. And Pattern 2 is a case where charging is interrupted in the CC: third region.
また、充電が中断されず、ＣＶ充電に移行した場合にパターン３として、ＣＶ：第１の領域で中断された場合とする。同様にパターン４は、ＣＶ：第２の領域で中断された場合とする。充電が中断されずに完了した場合は、パターン５とする。 In addition, when charging is not interrupted and the process shifts to CV charging, pattern 3 is assumed to be interrupted in CV: first region. Similarly, the pattern 4 is assumed to be interrupted in the CV: second area. If the charging is completed without interruption, pattern 5 is used.
図９は、充電バー３の状態の電池を無接点充電装置により充電した場合に、パターン1はＣＣ:第３の領域より時間カウントが開始されそのＣＣ：第３領域で充電が中断された場合とする。パターン２は、充電が中断されず、ＣＶ充電に移行しＣＶ：第１の領域で中断された場合とする。パターン３は、ＣＶ：第２の領域で中断された場合とする。充電が中断されずに完了した場合は、パターン４とする。 FIG. 9 shows that when the battery in the state of the charging bar 3 is charged by the non-contact charging device, pattern 1 starts counting time from CC: the third area and charging is interrupted in the CC: third area And Pattern 2 is a case where the charging is not interrupted, the process shifts to CV charging and is interrupted in the CV: first region. Pattern 3 is assumed to be interrupted in the CV: second area. If the charging is completed without interruption, pattern 4 is assumed.
図１０は、充電バー４の状態の電池を無接点充電装置により充電した場合に、パターン1はＣＶ：第１の領域で中断された場合とする。パターン２は、ＣＶ：第２の領域で中断された場合とする。充電が中断されずに完了した場合は、パターン３とする。 FIG. 10 shows a case where the battery in the state of the charging bar 4 is charged by the contactless charging device and the pattern 1 is interrupted in the CV: first region. Pattern 2 is assumed to be interrupted in the CV: second area. If charging is completed without interruption, pattern 3 is assumed.
図１１は、充電バー５の状態の電池を無接点充電装置により充電した場合に、パターン1は、ＣＶ：第２の領域で中断された場合とする。充電が中断されずに完了した場合は、パターン２とする。 In FIG. 11, when the battery in the state of the charging bar 5 is charged by the contactless charging device, the pattern 1 is assumed to be interrupted in the CV: second region. If charging is completed without interruption, pattern 2 is assumed.
図１２については、充電中断時、完了時にＣＰＵ２０１より充電量情報を一覧表にまとめた物である。この情報に基づき、本体側で充電バーの補正を行う。 FIG. 12 shows a list of charge amount information from the CPU 201 when charging is interrupted or completed. Based on this information, the charging bar is corrected on the main body side.
以上のように構成された電池パックにおいて電池パック内のＣＰＵ内部で充電電気量をカウント処理し、その情報をT端子に重畳することにより、本体と電池パック間の充電電気量経由回路及びC端子を削減でき、本体機器の省電力化及び電池パックの小型化が実現できる。 In the battery pack configured as described above, the charge electricity amount is counted inside the CPU in the battery pack, and the information is superimposed on the T terminal, so that the circuit via the charge electricity amount between the main body and the battery pack and the C terminal The power consumption of the main device and the downsizing of the battery pack can be realized.
本発明にかかる２次側コイル及び同期整流回路を内蔵した電池パックにおいて、カウント情報を電池パック内に保持し充電中断時もしくは、充電終了時にその情報を本体に送ることにより、端子数を増やさなくても非接触充電からの充電量が本体に伝わりフェールゲージ（残量表示）機能の誤表示を回避することが出来る、本体ＣＰＵの負荷軽減、実装スペースの軽減等の電池パック及び本体の簡素化、小型化等に有用である。 In the battery pack incorporating the secondary coil and the synchronous rectifier circuit according to the present invention, the count information is held in the battery pack and the information is sent to the main body when the charging is interrupted or terminated, without increasing the number of terminals. However, the amount of charge from non-contact charging is transmitted to the main unit, and erroneous display of the fail gauge (remaining amount display) function can be avoided, simplifying the battery pack and main unit, such as reducing the load on the main unit CPU and reducing the mounting space It is useful for downsizing.
１０１ 充電回路
１０２、２０１ ＣＰＵ
１０３、２０３ ２次側コイル
１０４、２０２ 検出抵抗
１０５ フェールゲージＩＣ
１０６ プラス端子
１０７ サーミスタ端子
１０８ マイナス端子
２０４ コントロール端子
２０５ フェールゲージ端子
２０６ 同期整流回路
３０１ １次側コイル
３０２ 伝送回路
101 Charging circuit 102, 201 CPU
103, 203 Secondary coil 104, 202 Detection resistance 105 Fail gauge IC
106 Plus terminal 107 Thermistor terminal 108 Negative terminal 204 Control terminal 205 Fail gauge terminal 206 Synchronous rectifier circuit 301 Primary coil 302 Transmission circuit
Claims (3)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| JP2011116556A JP2014150591A (en) | 2011-05-25 | 2011-05-25 | Battery pack for no-contact charging |
| PCT/JP2012/003250 WO2012160791A1 (en) | 2011-05-25 | 2012-05-17 | Battery pack for contactless charging |
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| JP2011116556A JP2014150591A (en) | 2011-05-25 | 2011-05-25 | Battery pack for no-contact charging |
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| WO (1) | WO2012160791A1 (en) |
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| US20220352755A1 (en) * | 2021-04-30 | 2022-11-03 | Nucurrent, Inc. | Wirelessly Powered Battery Pack For Retrofit In Battery Powered Devices |
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| JP5781392B2 (en) * | 2011-07-28 | 2015-09-24 | 三洋電機株式会社 | Battery pack, battery driving device, and contactless charging method of battery pack |
| WO2014192834A1 (en) * | 2013-05-28 | 2014-12-04 | 京セラ株式会社 | Battery pack and portable electronic apparatus |
| JP7434757B2 (en) * | 2019-08-29 | 2024-02-21 | 富士電機株式会社 | Charging control method, charging control device, charging device, and charging system |
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| JP4095878B2 (en) * | 2002-10-28 | 2008-06-04 | 松下電器産業株式会社 | Battery management system, battery pack, and charge state measuring method thereof |
| JP4456042B2 (en) * | 2005-07-15 | 2010-04-28 | パナソニック株式会社 | Protection circuit |
| JP2009219219A (en) * | 2008-03-10 | 2009-09-24 | Panasonic Corp | Battery charger |
| JP2010207074A (en) * | 2009-02-09 | 2010-09-16 | Nec Corp | System, device and method for control of non-contact charge |
| JP2010252505A (en) * | 2009-04-15 | 2010-11-04 | Panasonic Corp | Charger |
| CN102472797A (en) * | 2009-07-10 | 2012-05-23 | 松下电器产业株式会社 | Circuit for counting number of cycles, battery pack, and battery system |
| JP2011096527A (en) * | 2009-10-30 | 2011-05-12 | Panasonic Corp | Battery pack and charging device |
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| US20220352755A1 (en) * | 2021-04-30 | 2022-11-03 | Nucurrent, Inc. | Wirelessly Powered Battery Pack For Retrofit In Battery Powered Devices |
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