JP2712848B2 - Charging device - Google Patents
Charging deviceInfo
- Publication number
- JP2712848B2 JP2712848B2 JP3020410A JP2041091A JP2712848B2 JP 2712848 B2 JP2712848 B2 JP 2712848B2 JP 3020410 A JP3020410 A JP 3020410A JP 2041091 A JP2041091 A JP 2041091A JP 2712848 B2 JP2712848 B2 JP 2712848B2
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- charging
- storage battery
- quick
- constant current
- 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.)
- Expired - Lifetime
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、蓄電池を充電する充電
装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging device for charging a storage battery.
【０００２】[0002]
【従来の技術】従来より、充電装置として、充電される
べき蓄電池が接続される蓄電池端子と、トリクル充電回
路によりトリクル充電電圧が印加されるトリクル充電端
子と、前記蓄電池端子に接続されると共に急速充電回路
により急速充電電圧が印加される急速充電端子と、前記
トリクル充電端子と前記蓄電池端子との間に接続され前
記トリクル充電端子から前記蓄電池端子へ定電流を流す
定電流回路とを有するものが知られている。この充電装
置は、外部充電ユニットにより急速充電のための急速電
圧が印加される。この外部充電ユニットは、急速充電回
路およびこれによる急速充電の完了を検出する急速充電
完了検出手段を具備している。この急速充電完了検出手
段は、前記蓄電池の端子電圧の変化を検出して、この変
化が所定の基準のレベルより大きい時に充電完了信号を
出力するものである。前記外部充電ユニットにおいて
は、急速充電完了検出手段から充電完了信号が出力され
た時に急速充電回路は急速充電を停止する。2. Description of the Related Art Conventionally, as a charging device, a storage battery terminal to which a storage battery to be charged is connected, a trickle charging terminal to which a trickle charging voltage is applied by a trickle charging circuit, One having a rapid charging terminal to which a rapid charging voltage is applied by a charging circuit, and a constant current circuit connected between the trickle charging terminal and the storage battery terminal and flowing a constant current from the trickle charging terminal to the storage battery terminal. Are known. In this charging device, a rapid voltage for rapid charging is applied by an external charging unit. This external charging unit includes a rapid charging circuit and a rapid charging completion detecting means for detecting completion of rapid charging by the circuit. The quick charge completion detecting means detects a change in the terminal voltage of the storage battery, and outputs a charge completion signal when the change is larger than a predetermined reference level. In the external charging unit, the quick charging circuit stops the quick charging when the charging completion signal is output from the quick charging completion detecting means.
【０００３】[0003]
【発明が解決しようとする課題】従来の充電装置におい
ては、急速充電をする時に急速充電電圧とトリクル充電
電圧の両方が蓄電池に印加されるから、蓄電池の端子電
圧の変化の速度がおそくなるので、急速充電完了検出手
段が誤動作し、かつ、このため蓄電池に充電し過ぎて蓄
電池の寿命が短くなるという問題がある。本発明の課題
は、蓄電池の寿命を長くすることができる充電装置を提
供することにある。In the conventional charging device, since both the quick charging voltage and the trickle charging voltage are applied to the storage battery during quick charging, the terminal voltage of the storage battery changes at a slower rate. However, there is a problem that the quick charging completion detecting means malfunctions and the storage battery is charged too much, thereby shortening the life of the storage battery. An object of the present invention is to provide a charging device capable of extending the life of a storage battery.
【０００４】[0004]
【課題を解決するための手段】本発明によれば、充電さ
れるべき蓄電池が接続される蓄電池端子と、トリクル充
電電圧が印加されるトリクル充電端子と、前記蓄電池端
子に接続されると共に急速充電電圧が印加される急速充
電端子と、前記トリクル充電端子と前記蓄電池端子との
間に接続され前記トリクル充電端子から前記蓄電池端子
へ定電流を流す定電流回路と、前記急速充電端子に印加
される急速充電電圧を検出して急速充電信号を出力する
急速充電検出手段と、この急速充電検出手段からの急速
充電信号を受けた時に前記定電流回路の定電流を阻止す
る電流素子手段とを具備することを特徴とする充電装置
が得られる。また、本発明によれば、前記充電装置にお
いて、前記定電流回路は、エミッタが前記蓄電池端子に
抵抗を介して接続され、コレクタが前記トリクル充電端
子に接続され、かつ、ベースが他の抵抗を介して前記ト
リクル充電端子に接続されたトランジスタで構成され、
かつ、前記電流阻止手段は、前記急速充電検出手段と前
記トランジスタのベースとを接続する導線で構成される
ことを特徴とする充電装置が得られる。According to the present invention, a storage battery terminal to which a storage battery to be charged is connected, a trickle charging terminal to which a trickle charging voltage is applied, and a quick charging connected to the storage battery terminal. A rapid charging terminal to which a voltage is applied; a constant current circuit connected between the trickle charging terminal and the storage battery terminal for flowing a constant current from the trickle charging terminal to the storage battery terminal; and a constant current circuit applied to the quick charging terminal. It comprises a quick charge detecting means for detecting a quick charge voltage and outputting a quick charge signal, and a current element means for preventing a constant current of the constant current circuit when receiving the quick charge signal from the quick charge detecting means. A charging device characterized by the above is obtained. According to the present invention, in the charging device, in the constant current circuit, the emitter is connected to the storage battery terminal via a resistor, the collector is connected to the trickle charging terminal, and the base has another resistance. A transistor connected to the trickle charging terminal via
In addition, a charging device is obtained in which the current blocking means is constituted by a conducting wire connecting the quick charging detection means and the base of the transistor.
【０００５】[0005]
【実施例】次に、本発明の１実施例を図面に基いて詳細
に説明する。図１において符号１０は充電装置を示して
いる。この充電装置１０は、充電されるべき蓄電池１２
が接続される蓄電池端子１１と、トリクル充電電圧が印
加されるトリクル充電端子１３と、前記蓄電池端子１１
にダイオ−ド１５を介して接続されていると共に急速充
電電圧が印加される急速充電端子１４と、前記トリクル
充電端子１４と前記蓄電池端子１２との間に接続され前
記トリクル充電端子１４から前記蓄電池端子１１へ定電
流を流す定電流回路１６と、前記蓄電池端子１１に接続
されている充電検出端子１７とを有する。Next, an embodiment of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 10 indicates a charging device. The charging device 10 includes a storage battery 12 to be charged.
, A trickle charging terminal 13 to which a trickle charging voltage is applied, and a storage battery terminal 11.
A quick charging terminal 14 which is connected via a diode 15 to which a quick charging voltage is applied, and which is connected between the trickle charging terminal 14 and the storage battery terminal 12 from the trickle charging terminal 14 to the storage battery. It has a constant current circuit 16 for supplying a constant current to the terminal 11 and a charge detection terminal 17 connected to the storage battery terminal 11.
【０００６】前記急速充電端子１４には急速充電検出器
１８が接続されている。この急速充電検出器１８は、急
速充電端子１４に印加される急速充電電圧を検出して急
速充電信号を出力する。この急速充電検出器１８と前記
定電流回路１６とには電流阻止回路１９が接続されてい
る。この電流阻止回路１９は、急速充電検出器１８から
の急速充電信号を受けた時に前記定電流回路１６の定電
流を阻止する。前記トリクル充電端子１３には、電源２
０が接続されている。前記トリクル充電端子１３には、
電源２０の電圧がトリクル充電電圧として印加される。
前記急速充電端子１４および充電検出端子１７には、外
部充電ユニット３０の急速充電出力端子３１および充電
検出端子３２がそれぞれ接続されている。前記外部充電
ユニット３０は、急速充電入力端子３３を介して電源２
０に接続されている。なお、前記電源２０は、乗物用バ
ッテリ−を含んでいる。[0006] A quick charge detector 18 is connected to the quick charge terminal 14. The quick charge detector 18 detects a quick charge voltage applied to the quick charge terminal 14 and outputs a quick charge signal. A current blocking circuit 19 is connected to the quick charge detector 18 and the constant current circuit 16. The current blocking circuit 19 blocks the constant current of the constant current circuit 16 when receiving the quick charge signal from the quick charge detector 18. The trickle charging terminal 13 has a power source 2
0 is connected. The trickle charging terminal 13 includes:
The voltage of the power supply 20 is applied as a trickle charging voltage.
The quick charge terminal 14 and the charge detection terminal 17 of the external charging unit 30 are connected to the quick charge terminal 14 and the charge detection terminal 17, respectively. The external charging unit 30 is connected to a power source 2 via a quick charging input terminal 33.
Connected to 0. The power supply 20 includes a vehicle battery.
【０００７】前記外部充電ユニット３０は、前記急速充
電入力端子３３に接続された急速充電回路３４と、この
急速充電回路３４と前記急速充電出力端子３１との間に
接続されたスイッチング回路３５と、このスイッチング
回路３５に接続されスタ−ト信号を発生する操作ユニッ
ト３６と、前記スイッチング回路３５と充電検出端子３
２との間に接続された充電完了検出器３７と、この充電
完了検出器３７に接続された充電完了表示器３８とで構
成されている。前記急速充電回路３４は、電源２０の電
圧を受けて、蓄電池１２の端子電圧のレベルより高いレ
ベルの急速充電電圧を発生する。前記スイッチング回路
３５は、前記操作ユニット３６からスタ−ト信号を受け
た時にＯＮとなり、かつ、前記充電完了検出器３７から
充電完了信号を受けた時にＯＦＦとなる。前記スイッチ
ング回路３５がＯＮである間に、前記急速充電端子１４
には急速充電回路３４からの急速充電電圧がスイッチン
グ回路３５と急速充電出力端子３１を介して印加され
る。The external charging unit 30 includes a rapid charging circuit 34 connected to the rapid charging input terminal 33, a switching circuit 35 connected between the rapid charging circuit 34 and the rapid charging output terminal 31, An operation unit 36 connected to the switching circuit 35 for generating a start signal; the switching circuit 35 and the charge detection terminal 3;
2 and a charging completion indicator 38 connected to the charging completion detector 37. The quick charging circuit 34 receives the voltage of the power supply 20 and generates a quick charging voltage higher than the terminal voltage of the storage battery 12. The switching circuit 35 is turned on when receiving a start signal from the operation unit 36, and is turned off when receiving a charging completion signal from the charging completion detector 37. While the switching circuit 35 is ON, the quick charging terminal 14
, A quick charge voltage from a quick charge circuit 34 is applied via a switching circuit 35 and a quick charge output terminal 31.
【０００８】前記充電完了検出器３７には、蓄電池１２
の端子電圧が蓄電池端子１１と充電検出端子１７と充電
検出電圧入力端子３２を介して印加される。前記充電完
了検出器３７は、蓄電池１２の端子電圧の変化を検出し
て、この変化が所定の基準のレベルより大きい時に充電
の完了を示す充電完了信号を発生する。前記充電完了表
示器３８は、充電完了検出器３７から充電完了信号を受
けた時に、蓄電池１２の充電の完了を表示する。The charge completion detector 37 includes a storage battery 12
Is applied via the storage battery terminal 11, the charge detection terminal 17, and the charge detection voltage input terminal 32. The charge completion detector 37 detects a change in the terminal voltage of the storage battery 12 and generates a charge completion signal indicating the completion of charging when the change is greater than a predetermined reference level. The charging completion indicator 38 displays the completion of charging of the storage battery 12 when receiving the charging completion signal from the charging completion detector 37.
【０００９】次に、図２に基いて前記充電装置１０を詳
細に説明する。前記定電流回路１０は、トリクル充電端
子１３にコレクタが接続された第１のトランジスタ１６
１と、ベ−スが第１のトランジスタ１６１のエミッタと
接続されると共にエミッタが蓄電池端子１１に接続さ
れ、かつ、コレクタが第１のトランジスタ１６１のベ−
スと接続された第２のトランジスタ１６２と、トリクル
充電端子１３と第１のトランジスタ１６１のベ−スの間
に接続された第１の抵抗１６５と、第２のトランジスタ
１６２のべ−スと蓄電池端子１１との間に接続された第
２の抵抗１６６とからなる。Next, the charging device 10 will be described in detail with reference to FIG. The constant current circuit 10 includes a first transistor 16 having a collector connected to the trickle charging terminal 13.
1, the base is connected to the emitter of the first transistor 161, the emitter is connected to the storage battery terminal 11, and the collector is the base of the first transistor 161.
A first transistor 165 connected between the trickle charging terminal 13 and the base of the first transistor 161; a base of the second transistor 162; and a storage battery. And a second resistor 166 connected between the terminal 11.
【００１０】この定電流回路１０においては、蓄電池１
２の内部抵抗が小さくなると第２の抵抗１６６の電流が
大きくなるから、この第２の抵抗１６６の両端子間の電
圧は高くなるので第２のトランジスタ１６２の内部抵抗
が小さくなる。その結果、第１のトランジスタ１６１の
ベ−スの電圧が低くなるから第１のトランジスタ１６１
の内部抵抗が大きくなる。したがって、定電流回路１０
には定電流が流れる。一方、定電流回路１０において
は、蓄電池１２の内部抵抗が大きくなると第２の抵抗１
６６の電流が小さくなるから、この第２の抵抗１６６の
両端子間の電圧は低くなるので第２のトランジスタ１６
２の内部抵抗が大きくなる。その結果、第１のトランジ
スタ１６１のベ−スの電圧が高くなるから第１のトラン
ジスタ１６１の内部抵抗が小さくなる。したがって、定
電流回路１０には定電流が流れる。前記定電流回路１０
は、電源２０からの電圧をトリクル充電電圧としてトリ
クル充電端子１３を介して受けて、蓄電池１２に定電流
を供給する。In this constant current circuit 10, the storage battery 1
When the internal resistance of the second resistor 166 decreases, the current of the second resistor 166 increases. Therefore, the voltage between both terminals of the second resistor 166 increases. As a result, the base voltage of the first transistor 161 becomes lower, so that the first transistor 161
Internal resistance increases. Therefore, the constant current circuit 10
, A constant current flows. On the other hand, in the constant current circuit 10, when the internal resistance of the storage battery 12 increases, the second resistance 1
66, the voltage between the two terminals of the second resistor 166 becomes low, so that the second transistor 16
2 has an increased internal resistance. As a result, the base voltage of the first transistor 161 increases, so that the internal resistance of the first transistor 161 decreases. Therefore, a constant current flows through the constant current circuit 10. The constant current circuit 10
Receives a voltage from the power supply 20 as a trickle charge voltage via the trickle charge terminal 13 and supplies a constant current to the storage battery 12.
【００１１】前記急速充電回路１８は、エミッタが接地
されると共にベ−スが急速充電端子１４に抵抗１８２を
介して接続された第３のトランジスタ１８１で構成され
ている。前記電流阻止回路１９は、第３のトランジスタ
１８１のコレクタと第１のトランジスタ１６１のベ−ス
と第２のトランジスタ１６２のコレクタとに接続された
導線１９１で構成されている。The quick charging circuit 18 comprises a third transistor 181 whose emitter is grounded and whose base is connected to the quick charging terminal 14 via a resistor 182. The current blocking circuit 19 comprises a conductor 191 connected to the collector of the third transistor 181, the base of the first transistor 161 and the collector of the second transistor 162.
【００１２】前記急速充電端子１４に急速充電電圧が印
加された時には、第３のトランジスタ１８１がＯＮにな
るから、第１のトランジスタ１６１のベ−スが導線１９
１および第３のトランジスタ１８１を介して接地される
ので、第１のトランジスタ１６１がＯＦＦとなる。この
第１のトランジスタ１６１がＯＦＦとなると、定電流回
路１０の定電流が阻止される。前記急速充電端子１４に
急速充電電圧が印加された時には、蓄電池１２には急速
充電電圧のみが印加される、すなわち、トリクル充電電
圧は印加されない。When a quick charge voltage is applied to the quick charge terminal 14, the third transistor 181 is turned on, so that the base of the first transistor 161 is connected to the conductor 19.
The first transistor 161 is turned off because it is grounded via the first and third transistors 181. When the first transistor 161 is turned off, the constant current of the constant current circuit 10 is blocked. When the quick charge voltage is applied to the quick charge terminal 14, only the quick charge voltage is applied to the storage battery 12, that is, the trickle charge voltage is not applied.
【００１３】[0013]
【発明の効果】本発明は、急速充電完了検出手段の誤動
作を防止して蓄電池への過充電を防止することができる
ので蓄電池の寿命を長くすることができる。According to the present invention, the malfunction of the quick charge completion detecting means can be prevented to prevent overcharging of the storage battery, so that the life of the storage battery can be extended.
【図１】第１図は本発明の１実施例を示すブロック図で
ある。FIG. 1 is a block diagram showing one embodiment of the present invention.
【図２】第２図は本発明の１実施例を示す回路図であ
る。FIG. 2 is a circuit diagram showing one embodiment of the present invention.
１０ 充電装置 １１ 蓄電池端子 １２ 蓄電池 １３ トリクル充電端子 １４ 急速充電端子 １６ 定電流回路 １８ 急速充電器 １９ 電流阻止回路 DESCRIPTION OF SYMBOLS 10 Charging device 11 Storage battery terminal 12 Storage battery 13 Trickle charging terminal 14 Quick charging terminal 16 Constant current circuit 18 Quick charger 19 Current blocking circuit
Claims (2)
池端子と、トリクル充電電圧が印加されるトリクル充電
端子と、前記蓄電池端子に接続されると共に急速充電電
圧が印加される急速充電端子と、前記トリクル充電端子
と前記蓄電池端子との間に接続され前記トリクル充電端
子から前記蓄電池端子へ定電流を流す定電流回路と、前
記急速充電端子に印加される急速充電電圧を検出して急
速充電信号を出力する急速充電検出手段と、この急速充
電検出手段からの急速充電信号を受けた時に前記定電流
回路の定電流を阻止する電流素子手段とを具備すること
を特徴とする充電装置。1. A storage battery terminal to which a storage battery to be charged is connected, a trickle charging terminal to which a trickle charging voltage is applied, a quick charging terminal to be connected to the storage battery terminal and to which a quick charging voltage is applied, A constant current circuit connected between the trickle charge terminal and the storage battery terminal for flowing a constant current from the trickle charge terminal to the storage battery terminal; and a quick charge signal detecting a quick charge voltage applied to the quick charge terminal. And a current element means for preventing a constant current of the constant current circuit when receiving a quick charge signal from the quick charge detection means.
記定電流回路は、エミッタが前記蓄電池端子に抵抗を介
して接続され、コレクタが前記トリクル充電端子に接続
され、かつ、ベースが他の抵抗を介して前記トリクル充
電端子に接続されたトランジスタで構成され、かつ、前
記電流阻止手段は、前記急速充電検出手段と前記トラン
ジスタのベースとを接続する導線で構成されることを特
徴とする充電装置。2. The charging device according to claim 1, wherein the constant current circuit has an emitter connected to the storage battery terminal via a resistor, a collector connected to the trickle charging terminal, and a base connected to the trickle charging terminal. Charging characterized by comprising a transistor connected to the trickle charging terminal via a resistor, and wherein the current blocking means comprises a conducting wire connecting the quick charge detecting means and a base of the transistor. apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3020410A JP2712848B2 (en) | 1990-01-23 | 1991-01-22 | Charging device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1284590 | 1990-01-23 | ||
| JP2-12845 | 1990-01-23 | ||
| JP3020410A JP2712848B2 (en) | 1990-01-23 | 1991-01-22 | Charging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04217825A JPH04217825A (en) | 1992-08-07 |
| JP2712848B2 true JP2712848B2 (en) | 1998-02-16 |
Family
ID=26348526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3020410A Expired - Lifetime JP2712848B2 (en) | 1990-01-23 | 1991-01-22 | Charging device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2712848B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016167012A1 (en) * | 2015-04-15 | 2016-10-20 | 株式会社豊田自動織機 | Power supply device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6219055U (en) * | 1985-07-18 | 1987-02-04 |
-
1991
- 1991-01-22 JP JP3020410A patent/JP2712848B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04217825A (en) | 1992-08-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19970930 |