JPH08340641A - Battery power circuit - Google Patents
Battery power circuitInfo
- Publication number
- JPH08340641A JPH08340641A JP7169280A JP16928095A JPH08340641A JP H08340641 A JPH08340641 A JP H08340641A JP 7169280 A JP7169280 A JP 7169280A JP 16928095 A JP16928095 A JP 16928095A JP H08340641 A JPH08340641 A JP H08340641A
- Authority
- JP
- Japan
- Prior art keywords
- batteries
- battery
- parallel
- battery power
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電気自動車に最適な電
池電源回路に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery power supply circuit suitable for electric vehicles.
【０００２】[0002]
【従来の技術】従来の電気自動車に用いられている電池
電源回路は、所定の電圧を得るために、複数の電池を直
列に接続している。2. Description of the Related Art A battery power supply circuit used in a conventional electric vehicle has a plurality of batteries connected in series in order to obtain a predetermined voltage.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、複数の
電池が直列に接続されているために、回生電圧を電池電
源に印加して電池を充電しようとしても、電池の端子電
圧よりも起電力が高くなる高速回転時のみ回生電流が電
池に流れ、低速回転時には回生電流が流れないことにな
る。即ち、低速回転時には回生制動も電池の充電も行わ
れない問題があった。However, since a plurality of batteries are connected in series, even if an attempt is made to apply a regenerative voltage to the battery power source to charge the battery, the electromotive force is higher than the terminal voltage of the battery. The regenerative current flows into the battery only at high speed rotation, and the regenerative current does not flow at low speed rotation. That is, there is a problem that neither regenerative braking nor battery charging is performed at low speed rotation.
【０００４】本発明は、上記の問題点に鑑みてなされた
もので、充電電圧が低いときにも電池の充電を可能とす
ること、および低速回転時の回生制動を可能とすること
を目的とする。The present invention has been made in view of the above problems, and an object thereof is to enable charging of a battery even when the charging voltage is low, and to enable regenerative braking at low speed rotation. To do.
【０００５】[0005]
【課題を解決するための手段】この目的を達成するため
に、本発明の電池電源回路は、複数の電池（１１〜１
４）と、手動または自動切換えにより、電池を直列また
は並列に接続する切換回路（１〜６）とを具備し、電池
の放電時には、切換回路により電池を直列に接続し、電
池の充電時には、切換回路により電池を並列に接続する
ように構成されている。In order to achieve this object, the battery power supply circuit of the present invention comprises a plurality of batteries (11 to 1).
4) and a switching circuit (1 to 6) for connecting batteries in series or in parallel by manual or automatic switching. When the battery is discharged, the battery is connected in series by the switching circuit, and when charging the battery, The switching circuit is configured to connect the batteries in parallel.
【０００６】[0006]
【作用】上記構成の電池電源回路においては、電池の充
電時には、切換回路により電池を並列に接続するように
したので、充電電圧が低いときにも電池の充電が可能と
なり、かつ低速回転時の回生制動が可能となる。In the battery power supply circuit having the above structure, the batteries are connected in parallel by the switching circuit when charging the batteries, so that the batteries can be charged even when the charging voltage is low, and the batteries can be operated at low speeds. Regenerative braking becomes possible.
【０００７】[0007]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【０００８】図１および図２は、本発明による電池電源
回路の一実施例を示す配線図である。1 and 2 are wiring diagrams showing an embodiment of a battery power supply circuit according to the present invention.
【０００９】図１および図２において、４個の電池１１
〜１４は充放電が可能な二次電池であり、６個の半導体
スイッチ１〜６により直列または並列に接続される。半
導体スイッチ１〜６は、接点１ａ〜６ａ側に閉じるか、
または接点１ｂ〜６ｂ側に閉じる連動スイッチである。
この半導体スイッチ１〜６は、リレー回路によっても構
成できる。半導体スイッチ１〜６の切り換えは、外部の
制御装置または手動によって行われる。In FIGS. 1 and 2, four batteries 11 are provided.
14 are rechargeable secondary batteries, which are connected in series or in parallel by six semiconductor switches 1-6. The semiconductor switches 1 to 6 are closed on the side of the contacts 1a to 6a, or
Alternatively, it is an interlocking switch that closes to the contacts 1b to 6b.
The semiconductor switches 1 to 6 can also be configured by a relay circuit. Switching of the semiconductor switches 1 to 6 is performed by an external control device or manually.
【００１０】図１は、電池１１〜１４の発生する電圧
を、端子７および８から駆動モーター（図示せず）に出
力して駆動モーターを回転させるモードを示している。
４個の電池１１〜１４は、６個の半導体スイッチ１〜６
により直列に接続されている。FIG. 1 shows a mode in which the voltages generated by the batteries 11 to 14 are output from terminals 7 and 8 to a drive motor (not shown) to rotate the drive motor.
The four batteries 11 to 14 are the six semiconductor switches 1 to 6.
Are connected in series by.
【００１１】即ち、電池１１、接点１ｂ、接点２ｂ、電
池１２、接点３ｂ、接点４ｂ、電池１３、接点５ｂ、接
点６ｂ、電池１４の順に接続されて、４個の電池１１〜
１４は直列に接続されている。端子７および８の間から
は、電池１１〜１４の発生する電圧の和の電圧が、駆動
モーターに出力される。That is, the battery 11, the contact point 1b, the contact point 2b, the battery 12, the contact point 3b, the contact point 4b, the battery 13, the contact point 5b, the contact point 6b, and the battery 14 are connected in this order, and four batteries 11 to 11 are connected.
14 are connected in series. From between the terminals 7 and 8, the sum of the voltages generated by the batteries 11 to 14 is output to the drive motor.
【００１２】図２は、回生制動時に駆動モーター（図示
せず）の発生する電圧を、端子７および８から電池１１
〜１４に印加して、電池１１〜１４を充電するモードを
示している。４個の電池１１〜１４は、６個の半導体ス
イッチ１〜６により並列に接続されている。FIG. 2 shows the voltage generated by a drive motor (not shown) during regenerative braking from the terminals 7 and 8 to the battery 11.
14 to 14 are applied to charge the batteries 11 to 14. The four batteries 11 to 14 are connected in parallel by the six semiconductor switches 1 to 6.
【００１３】即ち、電池１１の正極は端子７に直接接続
される。電池１２の正極は、接点２ａを介して端子７に
接続される。電池１３の正極は、接点３ａを介して端子
７に接続される。電池１４の正極は、接点４ａを介して
端子７に接続される。また、電池１１の負極は接点１ａ
を介して端子８に接続される。電池１２の負極は、接点
３ａを介して端子８に接続される。電池１３の負極は、
接点４ａを介して端子８に接続される。電池１４の負極
は、端子８に直接接続される。端子７および８の間から
は、回生制動時に駆動モーターの発生する電圧が、４個
の並列接続された電池１１〜１４のそれぞれに印加さ
れ、電池１１〜１４の充電が行われる。That is, the positive electrode of the battery 11 is directly connected to the terminal 7. The positive electrode of the battery 12 is connected to the terminal 7 via the contact 2a. The positive electrode of the battery 13 is connected to the terminal 7 via the contact 3a. The positive electrode of the battery 14 is connected to the terminal 7 via the contact 4a. The negative electrode of the battery 11 is the contact 1a.
Is connected to the terminal 8 via. The negative electrode of the battery 12 is connected to the terminal 8 via the contact 3a. The negative electrode of the battery 13 is
It is connected to the terminal 8 via the contact 4a. The negative electrode of the battery 14 is directly connected to the terminal 8. From between the terminals 7 and 8, the voltage generated by the drive motor during regenerative braking is applied to each of the four batteries 11 to 14 connected in parallel, and the batteries 11 to 14 are charged.
【００１４】このように、モーターの駆動時には４個の
電池１１〜１４を直列に接続し、モーターの回生制動時
には４個の電池１１〜１４を並列に接続したので、低速
回転時にモーターが発生する低電圧であっても、並列接
続された電池１１〜１４を充電することができ、また回
生制動も有効に行うことができる。As described above, when the motor is driven, the four batteries 11 to 14 are connected in series, and when the motor is regeneratively braked, the four batteries 11 to 14 are connected in parallel. Therefore, the motor is generated at low speed rotation. Even at a low voltage, the batteries 11 to 14 connected in parallel can be charged, and regenerative braking can be effectively performed.
【００１５】以上、本発明を実施例により説明したが、
本発明の技術的思想によれば、種々の変形が可能であ
る。例えば、上述した実施例においては、４本の電池を
用いた場合について説明したが、更に多くの電池を用い
ることもできる。また、回生制動の場合について説明し
たが、放電時と充電時（例えば太陽電池の微弱電圧によ
る充電）とで、手動により切り換えるようにすることも
できる。The present invention has been described above with reference to the embodiments.
Various modifications are possible according to the technical idea of the present invention. For example, in the above-described embodiment, the case where four batteries are used has been described, but more batteries can be used. Although the case of regenerative braking has been described, it is also possible to manually switch between discharging and charging (for example, charging with a weak voltage of the solar cell).
【００１６】更に、回生制動時のモータが発生する電圧
に応じて半導体スイッチ１〜６の切り換えを行うように
することもできる。即ち、電圧検出回路を設け、回生制
動時のモータが発生する電圧が所定値よりも小さいとき
だけ、電池１１〜１４を並列に接続するようにもでき
る。Further, the semiconductor switches 1 to 6 may be switched according to the voltage generated by the motor during regenerative braking. That is, a voltage detection circuit may be provided so that the batteries 11 to 14 are connected in parallel only when the voltage generated by the motor during regenerative braking is smaller than a predetermined value.
【００１７】また、実施例では負荷がモータであるもの
として説明したが、ソレノイド等の逆起電力を発生する
誘導性負荷であっても良い。即ち、負荷がソレノイドの
ときには、ソレノイドが逆起電力を発生するときに、半
導体スイッチ１〜６により電池１１〜１４を並列に接続
することで、回生制動と電池１１〜１４の充電とを行う
ことができる。In the embodiment, the load is a motor, but it may be an inductive load such as a solenoid that generates a back electromotive force. That is, when the load is a solenoid, regenerative braking and charging of the batteries 11 to 14 are performed by connecting the batteries 11 to 14 in parallel by the semiconductor switches 1 to 6 when the solenoid generates counter electromotive force. You can
【００１８】[0018]
【発明の効果】以上のように、本発明の電池電源回路に
よれば、電池の充電時には、切換回路により電池を並列
に接続するようにしたので、充電電圧が低いときにも電
池の充電が可能となり、かつ低速回転時の回生制動が可
能となる。As described above, according to the battery power supply circuit of the present invention, when the battery is charged, the switching circuit connects the batteries in parallel, so that the battery can be charged even when the charging voltage is low. It becomes possible and regenerative braking at low speed rotation becomes possible.
【図１】本発明による電池電源回路の一実施例を示す配
線図である。FIG. 1 is a wiring diagram showing an embodiment of a battery power supply circuit according to the present invention.
【図２】本発明による電池電源回路の一実施例を示す配
線図である。FIG. 2 is a wiring diagram showing an embodiment of a battery power supply circuit according to the present invention.
１〜６ 半導体スイッチ １ａ〜６ａ 接点 １ｂ〜６ｂ 接点 ７〜８ 端子 １１〜１４ 電池 1 to 6 semiconductor switch 1a to 6a contact 1b to 6b contact 7 to 8 terminal 11 to 14 battery
Claims (3)
列に接続する切換回路とを具備し、 前記電池の放電時には、前記切換回路により前記電池を
直列に接続し、 前記電池の充電時には、前記切換回路により前記電池を
並列に接続することを特徴とする電池電源回路。1. A plurality of batteries, and a switching circuit for connecting the batteries in series or in parallel by manual or automatic switching, when the batteries are discharged, the batteries are connected in series by the switching circuit, A battery power supply circuit, wherein the batteries are connected in parallel by the switching circuit when the batteries are charged.
記切換回路により前記電池を並列に接続することを特徴
とする電池電源回路。2. The battery according to claim 1, wherein the load is an inductive load, and the switching circuit connects the batteries in parallel when the inductive load is in a mode in which a back electromotive force is generated. Battery power circuit.
に具備し、 該電圧検出回路が、前記電池に印加される電圧が所定値
よりも小さいことを検出したときに、前記切換回路によ
り前記電池を並列に接続することを特徴とする電池電源
回路。3. The voltage detection circuit according to claim 1, further comprising a voltage detection circuit for detecting a voltage applied to the battery, the voltage detection circuit detecting that the voltage applied to the battery is smaller than a predetermined value. The battery power supply circuit is characterized in that the batteries are connected in parallel by the switching circuit at the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7169280A JPH08340641A (en) | 1995-06-12 | 1995-06-12 | Battery power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7169280A JPH08340641A (en) | 1995-06-12 | 1995-06-12 | Battery power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08340641A true JPH08340641A (en) | 1996-12-24 |
Family
ID=15883594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7169280A Pending JPH08340641A (en) | 1995-06-12 | 1995-06-12 | Battery power circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08340641A (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2348748A (en) * | 1999-02-12 | 2000-10-11 | Se Kwang Oh | Battery charging/discharging circuit |
| JP2000305145A (en) * | 1999-04-20 | 2000-11-02 | Olympus Optical Co Ltd | Camera |
| JP2001086657A (en) * | 1999-09-10 | 2001-03-30 | Casio Comput Co Ltd | Charger and its charge and discharge method |
| KR100451637B1 (en) * | 2002-06-18 | 2004-10-08 | 오세광 | A Management System for the Rechargeable Battery |
| JP2009129657A (en) * | 2007-11-22 | 2009-06-11 | Nec Tokin Corp | Secondary battery pack |
| CN102157979A (en) * | 2011-02-28 | 2011-08-17 | 华为技术有限公司 | Power-down retaining method and circuit |
| CN102280911A (en) * | 2010-06-14 | 2011-12-14 | 株式会社日立制作所 | Electrical charge and discharge circuit, and an embedded controller |
| CN102324770A (en) * | 2011-09-20 | 2012-01-18 | 重庆地质仪器厂 | Cell box charging system and cell box power system |
| CN102738845A (en) * | 2011-04-01 | 2012-10-17 | 祥业科技股份有限公司 | Improved serial independent detecting battery charger |
| EP2528155A1 (en) * | 2011-05-26 | 2012-11-28 | Samsung SDI Co., Ltd. | Battery pack |
| JP2014176167A (en) * | 2013-03-07 | 2014-09-22 | Honda Motor Co Ltd | Power controller and overvoltage prevention method |
| CN104241714A (en) * | 2014-08-01 | 2014-12-24 | 技嘉科技股份有限公司 | Battery capable of being charged at low voltage rapidly |
| CN104393640A (en) * | 2014-11-07 | 2015-03-04 | 国家电网公司 | Portable passive protection device power source |
| JP2017182947A (en) * | 2016-03-29 | 2017-10-05 | 均 桝谷 | Stacked storage battery and storage battery system including the same |
| WO2019009629A1 (en) * | 2017-07-07 | 2019-01-10 | 주식회사 커널로그 | Energy collecting device capable of reusing residual charges using piezoelectric element |
| JP2019110758A (en) * | 2012-12-28 | 2019-07-04 | 株式会社半導体エネルギー研究所 | Control system for power storage device |
| JP2020074320A (en) * | 2020-01-28 | 2020-05-14 | 均 桝谷 | Stacked storage battery and storage battery system including the same |
| JP2020080308A (en) * | 2014-08-08 | 2020-05-28 | 株式会社半導体エネルギー研究所 | Power storage device |
| CN111391714A (en) * | 2020-03-18 | 2020-07-10 | 华为技术有限公司 | Drive circuit for electric vehicle and charging and discharging method |
| JP2021083145A (en) * | 2019-11-14 | 2021-05-27 | 株式会社堤水素研究所 | DC power supply |
| US11587959B2 (en) | 2012-03-26 | 2023-02-21 | Semiconductor Energy Laboratory Co., Ltd. | Power storage element, manufacturing method thereof, and power storage device |
-
1995
- 1995-06-12 JP JP7169280A patent/JPH08340641A/en active Pending
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2348748B (en) * | 1999-02-12 | 2003-09-24 | Se Kwang Oh | A manage system of rechargeable battery and a method for managing thereof |
| GB2348748A (en) * | 1999-02-12 | 2000-10-11 | Se Kwang Oh | Battery charging/discharging circuit |
| JP2000305145A (en) * | 1999-04-20 | 2000-11-02 | Olympus Optical Co Ltd | Camera |
| JP2001086657A (en) * | 1999-09-10 | 2001-03-30 | Casio Comput Co Ltd | Charger and its charge and discharge method |
| KR100451637B1 (en) * | 2002-06-18 | 2004-10-08 | 오세광 | A Management System for the Rechargeable Battery |
| JP2009129657A (en) * | 2007-11-22 | 2009-06-11 | Nec Tokin Corp | Secondary battery pack |
| CN102280911A (en) * | 2010-06-14 | 2011-12-14 | 株式会社日立制作所 | Electrical charge and discharge circuit, and an embedded controller |
| CN102157979A (en) * | 2011-02-28 | 2011-08-17 | 华为技术有限公司 | Power-down retaining method and circuit |
| CN102738845A (en) * | 2011-04-01 | 2012-10-17 | 祥业科技股份有限公司 | Improved serial independent detecting battery charger |
| EP2528155A1 (en) * | 2011-05-26 | 2012-11-28 | Samsung SDI Co., Ltd. | Battery pack |
| KR101419113B1 (en) * | 2011-05-26 | 2014-07-11 | 삼성에스디아이 주식회사 | Battery pack |
| US9444118B2 (en) | 2011-05-26 | 2016-09-13 | Samsung Sdi Co., Ltd. | Battery pack |
| CN102324770A (en) * | 2011-09-20 | 2012-01-18 | 重庆地质仪器厂 | Cell box charging system and cell box power system |
| US11587959B2 (en) | 2012-03-26 | 2023-02-21 | Semiconductor Energy Laboratory Co., Ltd. | Power storage element, manufacturing method thereof, and power storage device |
| JP2019110758A (en) * | 2012-12-28 | 2019-07-04 | 株式会社半導体エネルギー研究所 | Control system for power storage device |
| US10897152B2 (en) | 2012-12-28 | 2021-01-19 | Semiconductor Energy Laboratory Co., Ltd. | Power storage device control system, power storage system, and electrical appliance |
| JP2014176167A (en) * | 2013-03-07 | 2014-09-22 | Honda Motor Co Ltd | Power controller and overvoltage prevention method |
| CN104241714A (en) * | 2014-08-01 | 2014-12-24 | 技嘉科技股份有限公司 | Battery capable of being charged at low voltage rapidly |
| JP2020080308A (en) * | 2014-08-08 | 2020-05-28 | 株式会社半導体エネルギー研究所 | Power storage device |
| US11217865B2 (en) | 2014-08-08 | 2022-01-04 | Semiconductor Energy Laboratory Co., Ltd. | Electronic device including power storage device |
| CN104393640A (en) * | 2014-11-07 | 2015-03-04 | 国家电网公司 | Portable passive protection device power source |
| JP2017182947A (en) * | 2016-03-29 | 2017-10-05 | 均 桝谷 | Stacked storage battery and storage battery system including the same |
| WO2019009629A1 (en) * | 2017-07-07 | 2019-01-10 | 주식회사 커널로그 | Energy collecting device capable of reusing residual charges using piezoelectric element |
| JP2021083145A (en) * | 2019-11-14 | 2021-05-27 | 株式会社堤水素研究所 | DC power supply |
| JP2020074320A (en) * | 2020-01-28 | 2020-05-14 | 均 桝谷 | Stacked storage battery and storage battery system including the same |
| CN111391714A (en) * | 2020-03-18 | 2020-07-10 | 华为技术有限公司 | Drive circuit for electric vehicle and charging and discharging method |
| CN111391714B (en) * | 2020-03-18 | 2022-01-14 | 华为数字能源技术有限公司 | Drive circuit for electric vehicle and charging and discharging method |
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