JPS63157624A - Secondary battery charger - Google Patents
Secondary battery chargerInfo
- Publication number
- JPS63157624A JPS63157624A JP61304542A JP30454286A JPS63157624A JP S63157624 A JPS63157624 A JP S63157624A JP 61304542 A JP61304542 A JP 61304542A JP 30454286 A JP30454286 A JP 30454286A JP S63157624 A JPS63157624 A JP S63157624A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- charging
- temperature
- current
- secondary battery
- 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.)
- Granted
Links
- 230000005679 Peltier effect Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔概要〕
二次電池の充電装置で、電池の温度を検出する温度セン
サと、該温度センサの温度検出信号により印加電流の大
きさと方向を制御して冷却／加熱するペルチェ−効果素
子とを設け、充電する電池の温度を充電効率が最良とな
る温度に制御し該温度で最適の充電電流になるように制
御した装置。[Detailed Description of the Invention] [Summary] A secondary battery charging device includes a temperature sensor that detects the temperature of the battery, and controls the magnitude and direction of applied current based on the temperature detection signal of the temperature sensor to cool/heat the battery. A device that is equipped with a Peltier effect element, controls the temperature of a battery to be charged to a temperature that maximizes charging efficiency, and controls the charging current to be optimal at that temperature.
（産業上の利用分野）
本発明は二次電池の充電装置に関し、特に電池の周囲温
度をコントロールする機能を設けた充電装置に関する。(Industrial Application Field) The present invention relates to a charging device for a secondary battery, and particularly to a charging device provided with a function of controlling the ambient temperature of the battery.
温度コントロール機能をもつ二次電池充電装置としては
、電池の周囲温度が充電時に電池の充電効率が最良とな
る温度にコントロールされることが望まれる。For a secondary battery charging device having a temperature control function, it is desirable that the ambient temperature of the battery be controlled to a temperature that maximizes the charging efficiency of the battery during charging.
従来の二次電池の充電装置は、第４図に示す如く、電池
ｌの充電完了を検出するの満充電検出機能４や、過充電
防止のための充電電流制御機能１゜や、環境温度が低く
なって電池陰極でのガス吸収反応が遅くなり電池内のガ
ス圧上昇による漏液等を防止するための低温における充
電停止あるいは充電電流低減機能を具えている。As shown in Fig. 4, the conventional secondary battery charging device has a full charge detection function 4 to detect the completion of charging of the battery l, a charging current control function 1 to prevent overcharging, and a function to detect the environmental temperature. It is equipped with a function to stop charging or reduce the charging current at low temperatures in order to prevent liquid leakage due to an increase in gas pressure inside the battery due to slow gas absorption reaction at the battery cathode.
然しなから、二次電池は環境温度が１０′−２０’Ｃの
範囲をずれると、放電効率および充電効率が劣化する。However, when the environmental temperature of a secondary battery deviates from the range of 10' to 20'C, the discharging efficiency and charging efficiency of the secondary battery deteriorate.
放電効率を高（保つために環境温度をコントロールする
ことは、容量の定まった電池自体がコントロール機器の
駆動電源となる為に不適当である。Controlling the environmental temperature in order to maintain high discharge efficiency is inappropriate because the battery itself, which has a fixed capacity, serves as the driving power source for the control equipment.
充電時の充電効率を向上するための電池の温度コントロ
ールは、その駆動電源として一般に１かに大きい容量の
ものが容易に得られ、環境温度を理想的な状態に制御し
最も効率の良い充電電流で充電を行うことが出来るにも
拘わらず従来は行われていなかった。In order to control battery temperature to improve charging efficiency during charging, it is generally easy to obtain a battery with a larger capacity as a driving power source, and to control the environmental temperature to an ideal state to obtain the most efficient charging current. Although it is possible to charge the battery with a battery, this has not been done in the past.
本発明は、電池の充電電流および周囲温度と、電池の放
電容量（電池が実際にエネルギーを蓄えた電気量）との
関係が、電池によりその値は異なるが、第２図に示すよ
うな傾向をもつ、即ち０．ＩＣの充電では１３″−１５
°Ｃ１０，０３３Ｃの充電では約１１９０の温度に周囲
温度をコントロールすることが最も望ましいことに注目
し、第１図の原理構成図に示す如く、電池１の充電状態
を検出する電圧検出器４と、該電圧検出器４の検出出力
により前記電池１の充電電流の大きさを制御する充電制
御手段１００をそなえた二次電池充電装置において、前
記電池１の温度を検出する温度センサ２と、印加電流の
方向により冷却／加熱を切り換えて行うペルチェ効果素
子３を設け、且つ前記温度センサ２の温度検出信号によ
りペルチェ効果素子３の印加電流の大きさと方向を制御
する温度制御手段２００を設け、充電する電池１の温度
を所定の温度に制御し該温度で最適の充電電流になるよ
う構成する。In the present invention, the relationship between the charging current and ambient temperature of the battery and the battery's discharge capacity (the amount of electricity that the battery actually stores) has a tendency as shown in Figure 2, although the value varies depending on the battery. , i.e. 0. 13″-15 for IC charging
Noting that it is most desirable to control the ambient temperature to approximately 1190°C for charging at 10,033°C, as shown in the principle block diagram of FIG. , a secondary battery charging device comprising a charging control means 100 that controls the magnitude of the charging current of the battery 1 based on the detection output of the voltage detector 4, a temperature sensor 2 that detects the temperature of the battery 1; A Peltier effect element 3 that performs cooling/heating by switching between cooling and heating depending on the direction of the current is provided, and a temperature control means 200 that controls the magnitude and direction of the current applied to the Peltier effect element 3 based on the temperature detection signal of the temperature sensor 2 is provided. The temperature of the battery 1 is controlled to a predetermined temperature, and the charging current is optimized at that temperature.
充電すべき電池１に設けられる温度センサ２は、電池の
周囲温度を検出し、温度センサ２の検出信号によりペル
チェ効果素子３の印加電流の大きさと方向を温度制御手
段２００において制御する。A temperature sensor 2 provided on a battery 1 to be charged detects the ambient temperature of the battery, and a temperature control means 200 controls the magnitude and direction of the current applied to the Peltier effect element 3 based on a detection signal from the temperature sensor 2.
電池１の充電電流を制御する充電制御手段１００は、電
池１の充電状態を検出する電圧検出回路４の検出信号Δ
Ｖによって制御されるばかりでなく、前記温度センサ２
の出力ｔによりペルチェ効果素子３の印加電流を制御す
る温度制御手段２００によっても制御されるので、充電
する電池１は電池温度が充電に最適の所定の温度に制御
され、充電電流がその温度で最適の充電電流に制御され
て充電される。The charging control means 100 that controls the charging current of the battery 1 uses the detection signal Δ of the voltage detection circuit 4 that detects the charging state of the battery 1.
Not only is the temperature sensor 2 controlled by
It is also controlled by the temperature control means 200 which controls the current applied to the Peltier effect element 3 based on the output t of Charging is controlled to the optimum charging current.
第３図は本発明の実施例の二次電池充電装置の構成を示
す回路図である。FIG. 3 is a circuit diagram showing the configuration of a secondary battery charging device according to an embodiment of the present invention.
電池１は充電すべき二次電池であり、温度センサ２は電
池温度を検出するサーミスタであって電池１の電池壁面
などに張り付けられる。The battery 1 is a secondary battery to be charged, and the temperature sensor 2 is a thermistor that detects battery temperature and is attached to the battery wall of the battery 1.
ペルチェ効果を利用した素子３は、その印加電流の方向
により冷却と加熱が可能である。The element 3 utilizing the Peltier effect can be cooled or heated depending on the direction of the applied current.
電圧検出器４は、ダイオード４１、コンデンサ４２、オ
ペアンプ４３から成り、電池１の充電電圧が充電完了の
満充電によりダイオード４１に電圧降下が生じると、オ
ペアンプ４３の２つの入力電圧に差が生じその出力に検
出信号ΔＶを発生して充電制御手段１００のスイッチ５
ｌｌｉ１を駆動する。The voltage detector 4 consists of a diode 41, a capacitor 42, and an operational amplifier 43. When the charging voltage of the battery 1 is fully charged and a voltage drop occurs across the diode 41, a difference occurs between the two input voltages of the operational amplifier 43. The switch 5 of the charging control means 100 generates a detection signal ΔV at the output.
Drive lli1.
充電制御手段１００のスイッチ針１は、充電電流の大き
い急速充電回路１２と充電電流が急速充電の数１０分の
１のトリクル充電回路１１を切換え電池１の充電状態に
適した充電を行う。The switch needle 1 of the charging control means 100 switches between a quick charging circuit 12 with a large charging current and a trickle charging circuit 11 with a charging current of 1/10 of the quick charging to perform charging suitable for the charging state of the battery 1.
充電制御手段１００のスイッチＳＷＩは、また、温度セ
ンサ２の温度情報によっても駆動される。The switch SWI of the charging control means 100 is also driven by temperature information from the temperature sensor 2.
温度センサ２のサーミスタの温度情ｆｌａ ｔは、信可
変換器を介して信号ｔ１〜ｔ４に変換され、信号ｔ１は
前述の充電制御手段１００のスイッチＳＷＩを駆動し、
信号ｔ２は充電電流を加減する可変抵抗ＲＶＩを制御し
、信号ｔ３．信号ｔ４は温度制御手段２００の冷却／加
熱切換のスイッチＳ−３、可変抵抗ＲＶ３を駆動する。Temperature information flat of the thermistor of the temperature sensor 2 is converted into signals t1 to t4 via a digital converter, and the signal t1 drives the switch SWI of the charging control means 100,
The signal t2 controls a variable resistor RVI that adjusts the charging current, and the signal t3. The signal t4 drives the cooling/heating switch S-3 and the variable resistor RV3 of the temperature control means 200.
スイッチＳＷ３および可変抵抗ＲＶ３はペルチェ効果を
利用したペルチェ効果素子３に印加する電流の方向を変
えて冷却と加熱を切換え、且つ冷却または加熱の電流値
を制御する。The switch SW3 and the variable resistor RV3 change the direction of the current applied to the Peltier effect element 3 using the Peltier effect to switch between cooling and heating, and control the current value for cooling or heating.
更に詳しく説明すると、スイッチＳＷ３は、トランジス
タＴｒ３１〜Ｔｒ３４のベース電圧をＴｒ３２． Ｔｒ
３３のベースからＴｒ３１． Ｔｒ３４のベースへ切換
えペルチェ効果素子３の電流方向を逆転する。More specifically, the switch SW3 changes the base voltages of the transistors Tr31 to Tr34 to Tr32. Tr
From the base of Tr31. The current direction of the Peltier effect element 3 is reversed by switching to the base of the Tr 34.
また、可変抵抗ＲＶ３はトランジスタＴｒのベースバイ
アス電圧を変えることによって冷却または加熱電流の大
きさをコントロールする。Further, the variable resistor RV3 controls the magnitude of the cooling or heating current by changing the base bias voltage of the transistor Tr.
以上の説明から明らかなように、充電制御手段１００の
スイッチＳＷＩおよび可変抵抗ＲＶＩにより電池１の充
電電流の大きさが最適に制御され、また、温度制御手段
２００のスイッチ錦３および可変抵抗ＲＶ３を含むトラ
ンジスタＴｒ３１”Ｔｒ３４の回路により電池１の周囲
温度が最適値に制御されて電池ｌが常にその能力を最大
限に蓄えるように充電される。As is clear from the above explanation, the magnitude of the charging current of the battery 1 is optimally controlled by the switch SWI and the variable resistor RVI of the charging control means 100, and the magnitude of the charging current of the battery 1 is optimally controlled by the switch SWI and the variable resistor RVI of the charging control means 200. The circuit including the transistors Tr31''Tr34 controls the ambient temperature of the battery 1 to an optimum value, and charges the battery 1 so that it always stores its maximum capacity.
以上説明した如く、本発明によれば、電池が最適の環境
温度で最適の充電電流値で充電される二次電池充電装置
が実現できる効果が得られる。As described above, according to the present invention, it is possible to realize a secondary battery charging device in which a battery is charged with an optimal charging current value at an optimal environmental temperature.
第１図は本発明の二次電池充電装置の構成を示す原理構
成図、
第２図は本発明の二次電池充電装置の動作を説明するた
めの特性図、
第３図は本発明の実施例の二次電池充電装置の構成を示
す回路図、
第４図は従来例の二次電池充電装置の構成を示すブロッ
ク図である。
第１図、第３図において、
１は電池、
２は温度センサのサーミスタ、
３はペルチェ効果素子
４は電圧検出器、
ｉｏｏは充電制御手段、
２００は温度制御手段データある。
兜」１田繁の財団〕益ｊｘ（’ｃ＞
λ逅木イダ′１ｆ）＝次電；乞瞭り４肩広）示１フ゛■
ツ７目亭４町Fig. 1 is a principle block diagram showing the configuration of the secondary battery charging device of the present invention, Fig. 2 is a characteristic diagram for explaining the operation of the secondary battery charging device of the present invention, and Fig. 3 is an implementation of the present invention. A circuit diagram showing the configuration of an example secondary battery charging device. FIG. 4 is a block diagram showing the configuration of a conventional secondary battery charging device. 1 and 3, 1 is a battery, 2 is a thermistor of a temperature sensor, 3 is a Peltier effect element 4 is a voltage detector, ioo is charging control means, and 200 is temperature control means data. Kabuto'1 Shigeru Tada's Foundation] profit j x ('c>λ々木ida'1f) = next electric;
Tsu 7motei 4machi
Claims (1)
該電圧検出器（４）の検出出力により前記電池（１）の
充電電流の大きさを制御する充電制御手段（１００）を
そなえた二次電池充電装置において、 前記電池（１）の周囲温度を検出する温度センサ（２）
と、 印加電流の方向により前記電池（１）の周囲温度を冷却
または加熱するペルチェ効果素子（３）と、 前記温度センサ（２）の温度検出信号により前記ペルチ
ェ効果素子（３）の印加電流の大きさと方向を制御する
温度制御手段（２００）を設け、前記電池（１）の周囲
温度を所定の温度に制御し該温度で最適の充電電流にな
るよう制御することを特徴とする二次電池充電装置。[Claims] A voltage detector (4) that detects the state of charge of the battery (1);
A secondary battery charging device comprising a charging control means (100) that controls the magnitude of the charging current of the battery (1) based on the detection output of the voltage detector (4), wherein the ambient temperature of the battery (1) is controlled. Temperature sensor to detect (2)
a Peltier effect element (3) that cools or heats the ambient temperature of the battery (1) depending on the direction of the applied current; and a Peltier effect element (3) that cools or heats the ambient temperature of the battery (1) depending on the direction of the applied current; A secondary battery characterized by being provided with a temperature control means (200) for controlling the size and direction, and controlling the ambient temperature of the battery (1) to a predetermined temperature so that the charging current is optimal at that temperature. Charging device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61304542A JPH0787673B2 (en) | 1986-12-19 | 1986-12-19 | Secondary battery charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61304542A JPH0787673B2 (en) | 1986-12-19 | 1986-12-19 | Secondary battery charger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63157624A true JPS63157624A (en) | 1988-06-30 |
| JPH0787673B2 JPH0787673B2 (en) | 1995-09-20 |
Family
ID=17934255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61304542A Expired - Fee Related JPH0787673B2 (en) | 1986-12-19 | 1986-12-19 | Secondary battery charger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0787673B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009254097A (en) * | 2008-04-04 | 2009-10-29 | Toyota Motor Corp | Charging system and charging control method |
| JP2010282878A (en) * | 2009-06-05 | 2010-12-16 | Nec Corp | Secondary battery system and method of controlling temperature |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5272430A (en) * | 1975-12-15 | 1977-06-16 | Matsushita Electric Works Ltd | Charging system of charger for emergency lamp |
| JPS58175935A (en) * | 1982-04-07 | 1983-10-15 | 株式会社東芝 | Device for charging solar battery |
-
1986
- 1986-12-19 JP JP61304542A patent/JPH0787673B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5272430A (en) * | 1975-12-15 | 1977-06-16 | Matsushita Electric Works Ltd | Charging system of charger for emergency lamp |
| JPS58175935A (en) * | 1982-04-07 | 1983-10-15 | 株式会社東芝 | Device for charging solar battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009254097A (en) * | 2008-04-04 | 2009-10-29 | Toyota Motor Corp | Charging system and charging control method |
| JP2010282878A (en) * | 2009-06-05 | 2010-12-16 | Nec Corp | Secondary battery system and method of controlling temperature |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0787673B2 (en) | 1995-09-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |