JPS6227003Y2 - - Google Patents
Info
- Publication number
- JPS6227003Y2 JPS6227003Y2 JP1980140121U JP14012180U JPS6227003Y2 JP S6227003 Y2 JPS6227003 Y2 JP S6227003Y2 JP 1980140121 U JP1980140121 U JP 1980140121U JP 14012180 U JP14012180 U JP 14012180U JP S6227003 Y2 JPS6227003 Y2 JP S6227003Y2
- Authority
- JP
- Japan
- Prior art keywords
- storage battery
- voltage
- charging
- battery
- resistor
- 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
Links
- 238000000034 method Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
Description
【考案の詳細な説明】
本考案は電子機器や家庭電器に使用される例え
ばニツケルカドミウム蓄電池のような蓄電池の充
電器に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a charger for storage batteries, such as nickel-cadmium storage batteries, used in electronic devices and home appliances.
従来、この種充電器には、蓄電池の充電完了を
検出する方式として、蓄電池電圧の上昇を検出す
る方式、蓄電池体の発熱による温度上昇を検出す
る方式、蓄電池内圧力の上昇を検出する方式、ク
ーロメータによる充電量の積算方式等が採用され
ている。 Conventionally, this type of charger has a method for detecting the completion of charging of a storage battery: a method for detecting a rise in the voltage of the storage battery, a method for detecting a temperature rise due to heat generation in the storage battery, a method for detecting an increase in the internal pressure of the storage battery, A method such as integrating the amount of charge using a coulometer is adopted.
蓄電池電圧の上昇を検出する方式は、周囲温度
が高い場合、蓄電池が充放電を繰り返して来た
り、また充電々流が小さい場合には検出しようと
する電圧に達しない惧れがあるほか厳密には温度
補償を必要とする等の欠点があり、蓄電池体の温
度上昇を検出する方式は、蓄電池体の温度の低下
により再び充電を繰り返すことがあり、また蓄電
池内圧力の上昇を検出する方式は、通常ストレン
ゲージによる歪の検出とその検出回路が複雑高価
であり一般的でなく、クーロメータによる充電量
積算方式は、充電効率が考慮されないので実際の
充電状態とは必ずしも一致するものではないとい
う欠点を有していた。 The method for detecting a rise in battery voltage is not strictly accurate, as there is a risk that the voltage to be detected will not reach the desired voltage if the ambient temperature is high, the battery repeatedly charges and discharges, or if the charging current is small. has drawbacks such as requiring temperature compensation; methods that detect temperature rises in the storage battery may require repeated charging due to a drop in the temperature of the storage battery, and methods that detect increases in internal pressure of the storage battery do not. , Strain detection using a strain gauge and its detection circuit are usually complicated and expensive, and are not common, and the charging amount integration method using a coulometer does not take charging efficiency into account, so it does not necessarily match the actual state of charging. It had
本考案は上記の欠点を改善するもので、一実施
例を説明すると、蓄電池１がほぼ満充電状態にな
り蓄電池１の温度上昇が設定温度に達したときを
検出して充電回路に抵抗２を挿入するように切り
換わるサーマルリレー３と、寒冷時の充電でほぼ
満充電状態に上昇し得る蓄電池電圧に達したこと
を検出して充電回路を遮断する電圧検出器４とを
備えている。 The present invention is intended to improve the above-mentioned drawbacks, and to explain one embodiment, it detects when the storage battery 1 is almost fully charged and the temperature rise of the storage battery 1 reaches the set temperature, and a resistor 2 is added to the charging circuit. It is equipped with a thermal relay 3 that switches to insert the battery, and a voltage detector 4 that cuts off the charging circuit when it detects that the storage battery voltage has reached a level that can rise to a nearly fully charged state when charging in cold weather.
即ち、サーマルリレー３の接点３′と抵抗２が
並列に接続されたものが蓄電池１に直列に接続さ
れているので、充電開始時は接点３′は閉じてい
て蓄電池１の充電を進行させるが、蓄電池１がほ
ぼ満充電状態になり、ガス吸収による温度上昇を
起して設定温度に達したときに、接点３′が開い
て抵抗２を通して充電されるようになる。該抵抗
２は接点３′が開いた時、異常電圧が生じないよ
う蓄電池１保護のために挿入されているが、この
とき、抵抗２と蓄電池１を接続した両端間の電圧
は、寒冷時の充電でほぼ満充電状態に上昇し得る
蓄電池電圧を越えることとなるので電圧検出器４
が作動して充電回路を遮断する。また、寒冷時の
充電で蓄電池１の温度上昇が顕著でないときは、
サーマルリレー３の作動より前に電圧検出器４が
作動して充電回路を遮断することとなる。尚、５
は変圧器、６は整流体である。 That is, since the contact 3' of the thermal relay 3 and the resistor 2 are connected in parallel and connected in series to the storage battery 1, the contact 3' is closed at the start of charging and charging of the storage battery 1 progresses. When the storage battery 1 is almost fully charged and the temperature rises due to gas absorption and reaches the set temperature, the contact 3' opens and the battery 1 is charged through the resistor 2. The resistor 2 is inserted to protect the storage battery 1 to prevent abnormal voltage from occurring when the contact 3' opens, but at this time, the voltage across the connection between the resistor 2 and the storage battery 1 is the same as in cold weather. The voltage detector 4 exceeds the voltage of the storage battery, which can rise to an almost fully charged state during charging.
operates and cuts off the charging circuit. Also, if the temperature of storage battery 1 does not rise significantly during charging in cold weather,
Before the thermal relay 3 is activated, the voltage detector 4 is activated to cut off the charging circuit. In addition, 5
is a transformer, and 6 is a fluid regulator.
上述したように、本考案によれば、充電時にお
ける蓄電池の温度上昇又は蓄電池の電圧上昇のい
ずれかにより必ず蓄電池の満充電状態を検出して
充電完了とすることができるので、蓄電池の過充
電を防止することができる。 As described above, according to the present invention, the fully charged state of the storage battery can always be detected and charging is completed due to either the temperature rise of the storage battery or the voltage rise of the storage battery during charging, so overcharging of the storage battery can be avoided. can be prevented.
図面は本考案の一実施例を示す電気回路図であ
る。
１は蓄電池、２は抵抗、３はサーマルリレー、
３′はサーマルリレーの接点、４は電圧検出器、
５は変圧器、６は整流体。
The drawing is an electrical circuit diagram showing an embodiment of the present invention. 1 is a storage battery, 2 is a resistor, 3 is a thermal relay,
3' is the thermal relay contact, 4 is the voltage detector,
5 is a transformer, 6 is a fluid regulator.
Claims (1)
マルリレーの接点と抵抗が並列に接続されたもの
が蓄電池に直列に接続され、且つ該充電回路に、
前記蓄電池と抵抗を接続した両端電圧が設定電圧
に達したときに開く電圧検出器の接点が挿入され
た蓄電池用充電器。 A thermal relay contact that opens when the battery temperature reaches a set temperature and a resistor are connected in parallel to the thermal relay contact, which is connected in series to the battery. The charging circuit is
a storage battery charger having inserted therein a voltage detector contact that opens when the voltage across both ends of the storage battery and resistor connected thereto reaches a set voltage;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980140121U JPS6227003Y2 (en) | 1980-09-30 | 1980-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980140121U JPS6227003Y2 (en) | 1980-09-30 | 1980-09-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5763445U JPS5763445U (en) | 1982-04-15 |
| JPS6227003Y2 true JPS6227003Y2 (en) | 1987-07-10 |
Family
ID=29500040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980140121U Expired JPS6227003Y2 (en) | 1980-09-30 | 1980-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6227003Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0789720B2 (en) * | 1986-04-23 | 1995-09-27 | 松下電器産業株式会社 | Battery overheat protection switch |
-
1980
- 1980-09-30 JP JP1980140121U patent/JPS6227003Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5763445U (en) | 1982-04-15 |
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