JPH0337386B2 - - Google Patents
Info
- Publication number
- JPH0337386B2 JPH0337386B2 JP56169289A JP16928981A JPH0337386B2 JP H0337386 B2 JPH0337386 B2 JP H0337386B2 JP 56169289 A JP56169289 A JP 56169289A JP 16928981 A JP16928981 A JP 16928981A JP H0337386 B2 JPH0337386 B2 JP H0337386B2
- Authority
- JP
- Japan
- Prior art keywords
- output
- charging
- storage battery
- winding
- voltage
- 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
- 238000004804 winding Methods 0.000 claims description 34
- 239000003990 capacitor Substances 0.000 description 8
- 230000010355 oscillation Effects 0.000 description 5
- 230000010354 integration Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電気かみそりや充電式携帯電灯など
の比較的小型の各種電気機器に使用される蓄電池
の充電装置に関し、正確に充電状態を制御し、過
充電による蓄電池の劣化を防止するようにしたも
のである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a charging device for storage batteries used in various relatively small electric appliances such as electric shavers and rechargeable portable lamps, and the present invention relates to a charging device for accurately controlling the charging state of storage batteries used in various relatively small electric appliances such as electric shavers and rechargeable portable lights. This prevents deterioration of the storage battery due to overcharging.
充電池の充電制御方式は種々提案されており、
その１つとして例えば特開昭56−76176号公報に
示されているような充電時間を積算し、所定時間
後蓄電池への電力供給を停止するいわゆるカウン
タ方式がある。
Various charging control methods for rechargeable batteries have been proposed.
One such method is a so-called counter method, which integrates the charging time and stops supplying power to the storage battery after a predetermined period of time, as disclosed in, for example, Japanese Unexamined Patent Publication No. 56-76176.
このようなカウンタ方式による制御部には、通常
のカウンタを用いるため、例えば充電電圧検出方
式（例えば特開昭54−137640号公報参照）に要求
されるような精度を必要とせず構成を簡素化でき
るもので、多用されている。Since a normal counter is used in such a counter-based control unit, the configuration is simplified because it does not require the precision required for, for example, the charging voltage detection method (for example, see Japanese Patent Application Laid-Open No. 137640/1983). It is possible and is widely used.
その反面、制御部のカウンタの積算開始をどの
ように設定するかが大きな問題であつて、上記従
来方式のものは、充電装置に商用電源が接続され
ることにより商用電源の低周波に連動して積算開
始するものであり、インバータ部の一次側つまり
商用電源電圧そのままで駆動するよう構成されて
いる。
On the other hand, the big problem is how to set the start of integration on the counter in the control section.The conventional method described above is linked to the low frequency of the commercial power supply when the charging device is connected to the commercial power supply. The inverter is configured to be driven using the primary side of the inverter, that is, the commercial power supply voltage.
このために、従来の制御部は、インバータ部の
起動不良や異常発振（発振周波数ずれ）により、
二次側出力の有無にかかわらず、積算を開始し、
積算し続けるもので、蓄電池が正常に充電されて
いないにもかかわらず、所定時間積算後充電を停
止させるという誤報知のおそれのあるものであつ
た。 For this reason, conventional control units have been designed to
Starts integration regardless of the presence or absence of secondary output,
Since the charge continues to be accumulated, there is a risk of false alarms in which charging is stopped after a predetermined period of accumulation, even though the storage battery is not being charged normally.
しかも、制御部はインバータの一次側に接続さ
れるため、商用電源電圧に十分耐えうる高耐圧形
のものを使用しなければならず、価格的に高くな
る傾向にあつた。 Moreover, since the control section is connected to the primary side of the inverter, it is necessary to use a high-voltage type that can sufficiently withstand the commercial power supply voltage, which tends to increase the price.
本願発明は、上記諸点に鑑みて成されたもの
で、電源に接続されるインバータ４に、第１の出
力巻線N3，N4と第２出力巻線N5を独立して設
け、第１の出力巻線N3，N4に蓄電池Ｂを接続し
て充電するとともに、第２の出力巻線N5に上記
蓄電池Ｂへの充電状態を制御する制御部６を接続
して制御部６の駆動電源とし、該制御部６は第２
の出力巻線N5の出力が所定電圧に達した時記憶
内容がリセツトされ駆動開始させたものである。
The present invention has been made in view of the above points, and the inverter 4 connected to the power source is provided with the first output windings N 3 and N 4 and the second output winding N 5 independently. The storage battery B is connected to the output windings N 3 and N 4 of the first output winding N 3 and N 4 for charging, and the control unit 6 for controlling the state of charge of the storage battery B is connected to the second output winding N 5 . , and the control section 6 is a second drive power source.
When the output of the output winding N5 reaches a predetermined voltage, the stored contents are reset and driving is started.
以下、図面に沿つて実施例の説明を行う。 Examples will be described below with reference to the drawings.
電源プラグ１には、フエーズ２、保護用コンデ
ンサC1、ブリツジ整流器Refが接続されており、
更にコイルＬ、抵抗R1およびコンデンサC2から
成る雑音除去用のロウパスフイルター３が接続さ
れている。 A phase 2, a protective capacitor C 1 , and a bridge rectifier Ref are connected to the power plug 1.
Further connected is a low-pass filter 3 for removing noise, which is composed of a coil L, a resistor R1 , and a capacitor C2 .
ロウパスフイルター３には、インバータ４が接
続されている。このインバータ４は、バイアス抵
抗R2、調整用トリマーR3、一次巻線N1、帰還巻
線N2、コンデンサC4、保護用コンデンサC3、保
護用サーミスタTH、ダイオードD1から成つてい
る。 An inverter 4 is connected to the low pass filter 3. This inverter 4 consists of a bias resistor R 2 , an adjustment trimmer R 3 , a primary winding N 1 , a feedback winding N 2 , a capacitor C 4 , a protective capacitor C 3 , a protective thermistor TH, and a diode D 1 .
一次巻線N1と同一コアに第１の出力巻線とし
ての２つの二次巻線N3，N4が互いに逆向きに巻
かれており、各々ダイオードD2，D3が直列に接
続されている。そして、各ダイオードD2，D3の
カソード束は蓄電池Ｂの＋極及びモータＭに接続
されている。蓄電池Ｂの−極は二回路一接点スイ
ツチSWの中央接点ａに接続されるとともに、抵
抗R4を介してトランジスタのようなスイツチン
グ素子Tr2に接続されている。また、二回路一接
点スイツチSWの他の接点ｂ、ｃは、モータＭ及
び二次巻線N3，N4にそれぞれ接続している。 Two secondary windings N 3 and N 4 as a first output winding are wound on the same core as the primary winding N 1 in opposite directions, and diodes D 2 and D 3 are connected in series with each other. ing. The cathode bundle of each diode D 2 and D 3 is connected to the + pole of the storage battery B and the motor M. The negative pole of the storage battery B is connected to the center contact a of the two-circuit one-contact switch SW, and is also connected to a switching element Tr2 such as a transistor via a resistor R4 . Further, other contacts b and c of the two-circuit one-contact switch SW are connected to the motor M and the secondary windings N 3 and N 4 , respectively.
スイツチング素子Tr2のベース側バイアス抵抗
R5は、発光ダイオードのような充電表示素子
LED1を介して、蓄電池Ｂの充電状態を制御する
カウンタのような制御部６の出力端子６2に接続
されている。また蓄電池Ｂの＋極には第二の、発
光ダイオードのような充電終了表示素子LED2の
アノード側が接続されており、この充電終了表示
素子LED2のカソード側も後述する制御部６の出
力端子６2に接続されている。 Base side bias resistance of switching element Tr 2
R5 is a charging indicator like a light emitting diode
Via the LED 1 , it is connected to an output terminal 62 of a control unit 6, such as a counter, which controls the state of charge of the storage battery B. Further, the anode side of a second charging end indicating element LED 2 such as a light emitting diode is connected to the + pole of the storage battery B, and the cathode side of this charging end indicating element LED 2 is also connected to the output terminal of the control unit 6, which will be described later. 6 Connected to 2 .
また、一次巻線N1と同一コアに第１の出力巻
線N3，N4と独立して第２の出力巻線N5が巻かれ
ており、ダイオードD4及び抵抗R7、コンデンサ
C5，C6とから成るπ型フイルタとともに電源回
路５を構成し、制御部６の駆動電源として電力を
供給するようになつており、第１の巻線N3，N4
側のアースラインと電源回路５のアースラインと
は接続されている。 In addition, a second output winding N5 is wound around the same core as the primary winding N1, independently of the first output windings N3 and N4 , and includes a diode D4 , a resistor R7 , and a capacitor .
A power supply circuit 5 is configured together with a π-type filter consisting of C 5 and C 6 to supply electric power as a driving power source for the control unit 6, and the first winding N 3 and N 4
The ground line on the side and the ground line of the power supply circuit 5 are connected.
制御部６には、入力端子６1、出力端子６2、
CR発振端子６3、アース端子６4、リセツト端子
６5、ストツプ端子６6、発振電圧供給端子６7が
あり、このうちリセツト端子６5と入力端子６1
は、電源回路５の出力側と接続され、また出力端
子６2はストツプ端子６6大び前記充電表示素子
LED1のアノード側、および充電終了表示素子
LED2のカソード側と接続し、両表示素子LED1、
LED2とは逆向きに接続されている。更に、発振
電圧供給端子６7抵抗R8、コンデンサC7から成る
時定数回路を介してCR発振端子６3へ接続されて
いる。C8は定電圧用コンデンサである。 The control unit 6 includes an input terminal 6 1 , an output terminal 6 2 ,
There is a CR oscillation terminal 63 , a ground terminal 64 , a reset terminal 65 , a stop terminal 66 , and an oscillation voltage supply terminal 67 , among which a reset terminal 65 and an input terminal 61.
is connected to the output side of the power supply circuit 5, and the output terminal 62 is connected to the stop terminal 66 and the charging display element.
Anode side of LED 1 and charging end indicator
Connect to the cathode side of LED 2 , both display elements LED 1 ,
It is connected in the opposite direction to LED 2 . Further, the oscillation voltage supply terminal 6 7 is connected to the CR oscillation terminal 6 3 via a time constant circuit consisting of a resistor R 8 and a capacitor C 7 . C8 is a constant voltage capacitor.
次に動作の説明を行う。 Next, the operation will be explained.
スイツチをSWオンにすると、蓄電池Ｂより電
流が供給されてモータＭは駆動する。 When the switch is turned on, current is supplied from the storage battery B and the motor M is driven.
蓄電池Ｂを充電するには、スイツチSWをオフ
にして電源プラグ１をコンセント（図示せず）に
入れる。するとインバータ４は発振を開始し、第
１の出力巻線N3，N4及び第２の出力巻線N5に出
力電圧が生じ、電源回路５の出力により制御部６
の入力端子６1に電圧が供給されるとともに、該
供給出力が所定電圧例えば制御部６の動作可能電
圧に達するとリセツト端子６5にも入力があつて
制御部６は記憶内容がリセツトされ、且つコンデ
ンサC7及び抵抗R8による発振によりカウントの
駆動開始し充電状態を記憶する。このとき、出力
端子６2はダイオードD2，D3のカソード側よりも
ハイレベルであつて、充電終了表示素子LED2は
点灯せず、スイツチング素子Tr2のベース電流が
流れて充電状態を表示する充電表示素子LED1が
点灯するとともに、スイツチング素子Tr2は導通
し蓄電池Ｂは充電される。 To charge the storage battery B, turn off the switch SW and insert the power plug 1 into an outlet (not shown). Then, the inverter 4 starts oscillating, an output voltage is generated in the first output windings N 3 , N 4 and the second output winding N 5 , and the output of the power supply circuit 5 causes the control unit 6 to generate an output voltage.
A voltage is supplied to the input terminal 61 of the controller 6, and when the supplied output reaches a predetermined voltage, for example, a voltage that allows the control section 6 to operate, an input is also applied to the reset terminal 65 , and the memory contents of the control section 6 are reset. Then, the count starts to be driven by oscillation caused by the capacitor C7 and the resistor R8 , and the state of charge is memorized. At this time, the output terminal 6 2 is at a higher level than the cathode side of the diodes D 2 and D 3 , and the charge completion indicating element LED 2 does not light up, and the base current of the switching element Tr 2 flows to indicate the charging state. The charging display element LED 1 lights up, the switching element Tr 2 becomes conductive, and the storage battery B is charged.
ここで、所定充電時間まで積算するなどして記
憶内容が所定値に達すると出力端子６2はロウレ
ベルとなり、スイツチング素子Tr2のベース電流
は流れず充電表示素子LED1は消灯し、スイツチ
ング素子Tr2はカツトオフとなつて充電は停止さ
れる。これと同時に充電終了表示素子LED2には
出力端子６2へ向う電流が流れて点灯し、充電が
終了したことを報知する。このように、出力側巻
線に現れる出力が所定電圧に達したとき制御部６
は駆動開始し、設定値までカウントして出力端子
６2がロウレベルになつたときに、充電表示素子
LED1を確実に消灯させることができる。 Here, when the stored content reaches a predetermined value by integrating up to a predetermined charging time, the output terminal 62 becomes a low level, the base current of the switching element Tr2 does not flow, the charging display element LED1 turns off, and the switching element Tr2 turns off. 2 is cut off and charging is stopped. At the same time, a current flows through the charging end display element LED 2 toward the output terminal 6 2 and the LED 2 lights up, indicating that charging has ended. In this way, when the output appearing on the output side winding reaches a predetermined voltage, the control unit 6
starts driving, counts up to the set value, and when the output terminal 62 becomes low level, the charging display element
LED 1 can be turned off reliably.
なお、充電表示素子LED1は赤色、充電終了表
示素子LED2は緑色として発光色を異ならしてお
けば判別しやすい。また、充電表示素子LED1，
LED2に換えてブザーなどを用いてもよい。 It should be noted that if the charging indicator LED 1 is red and the charging end indicator LED 2 is green, it will be easier to distinguish them if they are emitted in different colors. In addition, charging display element LED 1 ,
A buzzer or the like may be used instead of LED 2 .
以上のように、本発明によれば、電源に接続さ
れるインバータ４に、第１の出力巻線N3，N4と
第２出力巻線N5を独立して設け、第１の出力巻
線N3，N4に蓄電池Ｂを接続して充電するととも
に、第２の出力巻線N5に上記蓄電池Ｂへの充電
状態を制御する制御部６を接続して制御部６の駆
動電源とし、該制御部６は第２の出力巻線N5の
出力が所定電圧に達した時記憶内容がリセツトさ
れ駆動開始させるようにしたので、制御部６の駆
動開始タイミングは、単にインバータ部を商用電
源に接続しただけでは得られず、インバータ部が
正常に作動して出力巻線側に出力が現れたとき初
めて得られるものとなり、このためインバータ部
が誤動作中は何ら積算されず確実な充電を行うこ
とができる。
As described above, according to the present invention, the first output windings N 3 and N 4 and the second output winding N 5 are independently provided in the inverter 4 connected to the power supply, and the first output winding A storage battery B is connected to the wires N 3 and N 4 for charging, and a control section 6 for controlling the charging state of the storage battery B is connected to the second output winding N 5 to serve as a driving power source for the control section 6. Since the control section 6 resets the memory contents and starts driving when the output of the second output winding N5 reaches a predetermined voltage, the drive start timing of the control section 6 is determined simply by switching the inverter section to commercial power. It cannot be obtained just by connecting to a power source, but only when the inverter section operates normally and output appears on the output winding side. Therefore, if the inverter section is malfunctioning, no integration will occur, ensuring reliable charging. It can be carried out.
また、充電開始時は、蓄電池Ｂの残容量が少な
ければ充電用の第１の出力巻線N3，N4の出力電
圧は低下するが、制御部６の駆動電力は第１の出
力巻線N3，N4から独立した第２の出力巻線N5に
より供給されるために不安定になることなく、制
御部６は正確に駆動開始し、誤充電を行うことと
が防止できる。 Furthermore, at the start of charging, if the remaining capacity of the storage battery B is low, the output voltage of the first output windings N 3 and N 4 for charging decreases, but the driving power of the control unit 6 is Since it is supplied by the second output winding N 5 independent from N 3 and N 4 , the control unit 6 can accurately start driving without becoming unstable, and erroneous charging can be prevented.
また、制御部な蓄電池接続側つまり低電圧側に
接続されているため、商用電源電圧のような高電
圧に耐える高電圧特性のものを使用する必要もな
く、安価で簡単なものを使用し得るものである。 In addition, since it is connected to the storage battery connection side of the control unit, that is, the low voltage side, there is no need to use a product with high voltage characteristics that can withstand high voltages such as commercial power supply voltage, and it is possible to use a cheap and simple product. It is something.
図は、本発明の実施例の電気回路図を示す。
４……インバータ、５……電源回路、６……制
御部、N3，N4……第１の出力巻線、N5……第２
の出力巻線、Ｂ……蓄電池。
The figure shows an electrical circuit diagram of an embodiment of the invention. 4...Inverter, 5...Power supply circuit, 6...Control unit, N3 , N4 ...First output winding, N5 ...Second
output winding, B...storage battery.
Claims (1)
力巻線N3，N4と第２出力巻線N5を独立して設
け、第１の出力巻線N3，N4に蓄電池Ｂを接続し
て充電するとともに、第２の出力巻線N5に上記
蓄電池Ｂへの充電状態を制御する制御部６を接続
して制御部６の駆動電源とし、該制御部６は第２
の出力巻線N5の出力が所定電圧に達した時記憶
内容がリセツトされ駆動開始してなるようにした
蓄電池の充電装置。1 The inverter 4 connected to the power source is provided with first output windings N 3 , N 4 and second output winding N 5 independently, and a storage battery B is connected to the first output windings N 3 , N 4 . At the same time, the second output winding N 5 is connected to a control section 6 for controlling the charging state of the storage battery B to serve as a driving power source for the control section 6.
A charging device for a storage battery that resets the stored contents and starts driving when the output of the output winding N5 reaches a predetermined voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56169289A JPS5869436A (en) | 1981-10-20 | 1981-10-20 | Charger for storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56169289A JPS5869436A (en) | 1981-10-20 | 1981-10-20 | Charger for storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5869436A JPS5869436A (en) | 1983-04-25 |
| JPH0337386B2 true JPH0337386B2 (en) | 1991-06-05 |
Family
ID=15883750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56169289A Granted JPS5869436A (en) | 1981-10-20 | 1981-10-20 | Charger for storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5869436A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60197128A (en) * | 1984-03-19 | 1985-10-05 | 松下電工株式会社 | Automatic voltage switching type charging circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52138646A (en) * | 1976-05-15 | 1977-11-18 | Matsushita Electric Works Ltd | Indicating and confirming device for charging of emergency lamp battery |
| JPS54137640A (en) * | 1978-04-18 | 1979-10-25 | Canon Kk | Secondary cell charging system |
| JPS5671432A (en) * | 1979-11-14 | 1981-06-15 | Sanyo Electric Co | Battery charger |
| JPS5676176A (en) * | 1979-11-22 | 1981-06-23 | Seiko Epson Corp | Charging method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50154430U (en) * | 1974-06-06 | 1975-12-22 |
-
1981
- 1981-10-20 JP JP56169289A patent/JPS5869436A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52138646A (en) * | 1976-05-15 | 1977-11-18 | Matsushita Electric Works Ltd | Indicating and confirming device for charging of emergency lamp battery |
| JPS54137640A (en) * | 1978-04-18 | 1979-10-25 | Canon Kk | Secondary cell charging system |
| JPS5671432A (en) * | 1979-11-14 | 1981-06-15 | Sanyo Electric Co | Battery charger |
| JPS5676176A (en) * | 1979-11-22 | 1981-06-23 | Seiko Epson Corp | Charging method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5869436A (en) | 1983-04-25 |
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