JPH0343819Y2 - - Google Patents

Info

Publication number
JPH0343819Y2
JPH0343819Y2 JP1982190271U JP19027182U JPH0343819Y2 JP H0343819 Y2 JPH0343819 Y2 JP H0343819Y2 JP 1982190271 U JP1982190271 U JP 1982190271U JP 19027182 U JP19027182 U JP 19027182U JP H0343819 Y2 JPH0343819 Y2 JP H0343819Y2
Authority
JP
Japan
Prior art keywords
storage battery
sub
rectifier
charging
main storage
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
Application number
JP1982190271U
Other languages
Japanese (ja)
Other versions
JPS5992546U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1982190271U priority Critical patent/JPS5992546U/en
Publication of JPS5992546U publication Critical patent/JPS5992546U/en
Application granted granted Critical
Publication of JPH0343819Y2 publication Critical patent/JPH0343819Y2/ja
Granted legal-status Critical Current

Links

Description

【考案の詳細な説明】 〔考案の概要〕 本願考案は小型電気機器用蓄電池の充電装置に
係り、交流電源に接続されたレギユレーシヨン特
性の悪い降圧トランスの二次側に、主蓄電池と副
蓄電池をそれぞれ整流器を介して正、負各半波に
対応するよう逆向きに並列接続し、かつ副蓄電池
に接続される整流器を、副蓄電池の充電電流で発
光する発光素子で兼用することにより、主副蓄電
池をほぼ同時に満充電するとともに、充電表示を
行うようにしたものである。
[Detailed Description of the Invention] [Summary of the Invention] The present invention relates to a charging device for storage batteries for small electrical equipment, in which a main storage battery and an auxiliary storage battery are connected to the secondary side of a step-down transformer with poor regulation characteristics that is connected to an AC power source. By connecting the positive and negative half-waves in parallel in opposite directions through rectifiers, and by using the rectifier connected to the sub-storage battery as a light emitting element that emits light using the charging current of the sub-storage battery, the main and sub-storage batteries can be connected in parallel. The storage batteries are fully charged almost simultaneously and a charging display is displayed.

〔従来の技術〕[Conventional technology]

電気かみそり等の各種小型電気機器用蓄電池と
しては、ニツケルカドニウム電池等が多用される
が、この種蓄電池は一般に放電特性が良好で放電
完了直前まで出力電圧は低下せず、放電完了直前
になつて急激に出力電圧が低下する性質をもつて
いる。このため機器の運転中に放電完了に近づく
と、機器は運転を急停止し、以後機器は使用不能
となる弱点があり、例えば電気かみそりの場合に
はひげそり途中でひげそりを断念せねばならなか
つた。
Nickel-cadmium batteries are often used as storage batteries for various small electric appliances such as electric shavers, but these types of storage batteries generally have good discharge characteristics, and the output voltage does not drop until just before the completion of discharge. It has the property of causing the output voltage to drop rapidly. For this reason, when the device approaches the end of discharging while it is in operation, the device suddenly stops operating and becomes unusable.For example, in the case of an electric razor, the shaver has to be abandoned mid-shave. .

〔考案が解決しようとする問題点〕[Problem that the invention attempts to solve]

このため主蓄電池と副蓄電池を設け、主蓄電池
の放電が終了したときはスイツチを切り換えて副
蓄電池を使用するようにしたものがあるが、かか
る副蓄電池の容量はその性格上主蓄電池の容量よ
りもかなり小さいものであり、このように容量に
大差のある主蓄電池と副蓄電池を同時に充電する
と、容量の小さい副蓄電池は容量の大きい主蓄電
池よりも早く充電が終了し、副蓄電池が満充電さ
れた後も主蓄電池の充電は続行されるため、副蓄
電池は過充電されることになる。殊に、この種蓄
電池は一般に充電末期に電圧が急上昇する特性が
あるため、主蓄電池のかかる特性によつて充電が
終了している副蓄電池に過大な電圧がかかり、副
蓄電池は劣化をきたすことになる。
For this reason, some devices are equipped with a main storage battery and an auxiliary storage battery, and when the main storage battery has finished discharging, the switch is turned over to use the auxiliary storage battery, but due to its nature, the capacity of the auxiliary storage battery is higher than that of the main storage battery. is also quite small, so if you charge the main storage battery and the sub-storage battery at the same time, which have a large capacity difference, the sub-storage battery with the smaller capacity will finish charging earlier than the main storage battery with the larger capacity, and the sub-storage battery will not be fully charged. Since the main storage battery continues to be charged even after the main storage battery is charged, the auxiliary storage battery will be overcharged. In particular, this type of storage battery generally has the characteristic that the voltage increases rapidly at the end of charging, so due to this characteristic of the main storage battery, an excessive voltage is applied to the secondary storage battery that has finished charging, causing deterioration of the secondary storage battery. become.

〔問題点を解決するための手段〕[Means for solving problems]

そこで本考案はかかる点を勘案してなされたも
のであつて、交流電源に接続されたレギユレーシ
ヨン特性の悪い降圧トランスの二次側に、主蓄電
池と副蓄電池をそれぞれ整流器を介して正、負各
半波に対応するよう逆向きに並列接続し、かつ副
蓄電池に接続される整流器を、副蓄電池の充電電
流で発光する発光素子で兼用するようにしたもの
であり、かくすることにより主蓄電池と副蓄電池
に両蓄電池の容量比に応じた充電電流を交互に流
して両蓄電池をほぼ同時に満充電するとともに、
充電電流の小さい副蓄電池充電時の、降圧トラン
スの高い出力電圧を利用して充電しつつ発光素子
により充電表示を行い、しかも発光素子と副蓄電
池用整流器とを兼用して構成を簡素化するように
したものである。
Therefore, the present invention has been developed with these points in mind.The main storage battery and the auxiliary storage battery are connected to the secondary side of a step-down transformer with poor regulation characteristics, connected to an AC power source, through a rectifier, respectively. They are connected in parallel in opposite directions to correspond to half waves, and the rectifier connected to the sub-storage battery is also used as a light-emitting element that emits light using the charging current of the sub-storage battery. A charging current corresponding to the capacity ratio of both batteries is alternately applied to the sub-storage battery to fully charge both batteries almost simultaneously, and
When charging an auxiliary storage battery with a small charging current, the high output voltage of the step-down transformer is used to charge the battery and a light emitting element is used to display the charge, and the light emitting element and the rectifier for the auxiliary storage battery are also used to simplify the configuration. This is what I did.

〔実施例〕〔Example〕

以下、図面に沿つて本考案の実施例の説明を行
う。
Embodiments of the present invention will be described below with reference to the drawings.

第1図は充電装置の電気回路を示すものであつ
て、1は交流電源であり、降圧トランス2の一次
側が接続されている。降圧トランス2として、レ
ギユレーシヨン特性の悪いものを選定し、この二
次側には、大容量(500mAH)の主蓄電池B1
よび小容量(50mAH)の副蓄電池B2が正、負各
半波に対応して逆向きでかつ並列に接続されてい
る。主蓄電池B1には主蓄電池B1の放電防止を兼
ねた整流用ダイオードD1が、また副蓄電池B2
は整流器を兼ねた充電表示用の発光素子としての
発光ダイオードD2と抵抗Rがそれぞれ接続され
ており、主蓄電池B1は降圧トランス2の出力の
正半波時の電流I1により、また副蓄電池B2は負半
波時の電流I2によりそれぞれ交互に充電されるよ
うになつている。
FIG. 1 shows an electric circuit of a charging device, in which reference numeral 1 denotes an AC power source, to which the primary side of a step-down transformer 2 is connected. A step-down transformer 2 with poor regulation characteristics is selected, and a large capacity (500 mAH) main storage battery B 1 and a small capacity (50 mAH) auxiliary storage battery B 2 are connected to each positive and negative half wave on the secondary side. Correspondingly, they are connected in opposite directions and in parallel. The main storage battery B 1 includes a rectifier diode D 1 that also serves to prevent the main storage battery B 1 from discharging, and the auxiliary storage battery B 2 includes a light emitting diode D 2 that also serves as a rectifier and serves as a light emitting element for charging indication, and a resistor R. They are connected so that the main storage battery B 1 is alternately charged by the current I 1 during the positive half wave of the output of the step-down transformer 2, and the sub storage battery B 2 is charged by the current I 2 during the negative half wave. It's summery.

3はスライド式のスイツチボタンであつて、機
器駆動用のモータMに接続されており、各蓄電池
B1,B2のそれぞれの接点41,42および42,43
に選択的に接続するようになつている。すなわち
通常時においてはスイツチボタンは接点41,42
に接続し、主蓄電池B1によりモータMを駆動す
るが、主蓄電池B1がほぼ放電を完了してモータ
Mが駆動不能となつたときは、スイツチボタン3
をスライドさせて接点42,43に接続し、副蓄電
池B2によりモータMを駆動するようになつてい
る。ここで主蓄電池B1と副蓄電池B2の端子電圧
はともに1.3V、ダイオードD1および発光ダイオ
ードD2のアノードカソード間電圧はそれぞれ
0.4Vおよび1.4Vであり、従つて正半波時におけ
る二次側の負荷電圧は1.7V、負半波時における
二次側のそれは2.7Vである。
3 is a sliding switch button, which is connected to the motor M for driving the equipment, and is connected to the motor M for driving the equipment.
Contacts 4 1 , 4 2 and 4 2 , 4 3 of B 1 and B 2 , respectively
It is now possible to selectively connect to In other words, under normal conditions, the switch button has contacts 4 1 , 4 2
, and the motor M is driven by the main storage battery B 1. However, when the main storage battery B 1 has almost completely discharged and the motor M cannot be driven, the switch button 3
is connected to the contacts 4 2 and 4 3 by sliding it, and the motor M is driven by the sub-storage battery B 2 . Here, the terminal voltages of main storage battery B 1 and sub storage battery B 2 are both 1.3V, and the anode-cathode voltages of diode D 1 and light emitting diode D 2 are respectively
0.4V and 1.4V, therefore, the load voltage on the secondary side during positive half wave is 1.7V, and that on the secondary side during negative half wave is 2.7V.

第2図は降圧トランス2のレギユレーシヨン特
性を示すものであつて、正半波時において上述の
ように負荷電圧が1.7VのときはI1=90mAの充電
電流が流れて主蓄電池B1を充電し、また負半波
時においては、副蓄電池B2の充電電流は少なく
しなければならず、このことは上述のように降圧
トランス2のレギユレーシヨン特性が悪いため、
二次側電圧が上昇することになり負荷電圧が
2.7VのときはI1=10mAの充電電流が流れて副蓄
電池B2を充電し、その際上昇分の出力電圧は発
光ダイオードD2の駆動電圧として利用され、発
光ダイオードは点灯して充電中であることを報知
する。したがつて負半波時の余剰電力は発熱ロス
として無駄にすることなく表示用として活用され
る。このように本装置は副蓄電池B2に発光ダイ
オードD2から成る負荷を接続しているので、副
蓄電池B2の充電電流I2は主蓄電池B1の充電電流I1
よりも小さくなり、従つて容量の異る両蓄電池
B1,B2に容量比に応じた充電電流I1,I2を流して
両蓄電池B1,B2をほぼ同時に満充電することが
でき、かつ整流器を兼ねた発光ダイオードD2
より充電表示を行うことができこの表示のための
構成を簡素化できる。
Figure 2 shows the regulation characteristics of the step-down transformer 2. In the positive half wave mode, when the load voltage is 1.7V as mentioned above, a charging current of I 1 = 90mA flows to charge the main storage battery B 1. However, during the negative half wave, the charging current of the sub-storage battery B2 must be reduced, which is due to the poor regulation characteristics of the step-down transformer 2 as described above.
The secondary voltage increases and the load voltage decreases.
When the voltage is 2.7V, a charging current of I 1 = 10mA flows to charge the sub-storage battery B 2 , and at this time, the increased output voltage is used as the driving voltage for the light-emitting diode D 2 , and the light-emitting diode lights up while charging. Notify that this is the case. Therefore, the surplus power during the negative half wave is utilized for display purposes without being wasted as heat loss. In this way, since this device connects the load consisting of the light emitting diode D 2 to the sub-storage battery B 2 , the charging current I 2 of the sub-storage battery B 2 is equal to the charging current I 1 of the main storage battery B 1 .
Both storage batteries are smaller than , and therefore have different capacities.
Both storage batteries B 1 and B 2 can be fully charged almost simultaneously by flowing charging currents I 1 and I 2 according to the capacity ratio to B 1 and B 2 , and charging can be indicated by the light emitting diode D 2 which also serves as a rectifier. The configuration for this display can be simplified.

〔効果〕〔effect〕

以上説明したように本考案に係る小型電気器用
蓄電池B1,B2の充電装置は、交流電源1に接続
されたレギユレーシヨン特性の悪い降圧トランス
2の二次側に、大容量の主蓄電池B1と小容量の
副蓄電池B2をそれぞれ整流器D1,D2を介して正、
負各半波に対応するように逆向きに並列接続し、
かつ該副蓄電池B2の上記整流器D2を副蓄電池B2
の充電電流で発光する発光素子で兼用するように
しているので、容量の異る主蓄電池B1と副蓄電
池B2にその容量比に応じた充電電流I1,I2を流し
て蓄電池B1,B2をほぼ同時に満充電することが
でき、したがつて過充電によつて副蓄電池B2
痛めることがなく、かつ充電表示も簡単な構成で
併せて行うことができる。
As explained above, the charging device for small electric appliance storage batteries B 1 and B 2 according to the present invention has a large-capacity main storage battery B 1 connected to the AC power source 1 on the secondary side of the step-down transformer 2 with poor regulation characteristics. and small-capacity auxiliary storage battery B 2 are connected to the positive through rectifiers D 1 and D 2 ,
Connect in parallel in opposite directions to correspond to each negative half wave,
And the rectifier D 2 of the sub-storage battery B 2 is connected to the sub-storage battery B 2
Since the light - emitting element that emits light with a charging current of , B2 can be fully charged almost at the same time, therefore, the sub-storage battery B2 will not be damaged due to overcharging, and the charge display can also be performed with a simple configuration.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本考案の実施例を示すものであつて、第1
図は充電装置の電気回路図、第2図はレギユレー
シヨン特性図である。 1……交流電源、2……降圧トランス、B1
…主蓄電池、B2……副蓄電池、D1,D2……整流
用ダイオード、D2……発光ダイオード。
The figure shows an embodiment of the present invention.
The figure is an electric circuit diagram of the charging device, and FIG. 2 is a regulation characteristic diagram. 1... AC power supply, 2... Step-down transformer, B 1 ...
...Main storage battery, B 2 ... Sub-storage battery, D 1 , D 2 ... Rectifier diode, D 2 ... Light emitting diode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 交流電源1に接続されたレギユレーシヨン特性
の悪い降圧トランス2の二次側に、大容量の主蓄
電池B1と小容量の副蓄電池B2をそれぞれ整流器
D1,D2を介して正、負各半波に対応するよう逆
向きに並列接続し、かつ該副蓄電池B2の上記整
流器D2を、副蓄電池B2の充電電流で発光する発
光素子で兼用するようにした小型電気機器要蓄電
池の充電装置。
A large-capacity main storage battery B 1 and a small-capacity auxiliary storage battery B 2 are each connected to a rectifier on the secondary side of a step-down transformer 2 with poor regulation characteristics connected to an AC power supply 1.
A light emitting element that is connected in parallel in opposite directions via D 1 and D 2 so as to correspond to each positive and negative half wave, and that the rectifier D 2 of the sub storage battery B 2 emits light using the charging current of the sub storage battery B 2. A charging device for small electric equipment storage batteries that can be used for both purposes.
JP1982190271U 1982-12-14 1982-12-14 Charging device for storage batteries for small electrical equipment Granted JPS5992546U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1982190271U JPS5992546U (en) 1982-12-14 1982-12-14 Charging device for storage batteries for small electrical equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1982190271U JPS5992546U (en) 1982-12-14 1982-12-14 Charging device for storage batteries for small electrical equipment

Publications (2)

Publication Number Publication Date
JPS5992546U JPS5992546U (en) 1984-06-23
JPH0343819Y2 true JPH0343819Y2 (en) 1991-09-13

Family

ID=30410010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1982190271U Granted JPS5992546U (en) 1982-12-14 1982-12-14 Charging device for storage batteries for small electrical equipment

Country Status (1)

Country Link
JP (1) JPS5992546U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5260945A (en) * 1975-11-15 1977-05-19 Matsushita Electric Works Ltd Charging circuit
JPS5635640A (en) * 1979-07-25 1981-04-08 Gen Electric Battery charger

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5260945A (en) * 1975-11-15 1977-05-19 Matsushita Electric Works Ltd Charging circuit
JPS5635640A (en) * 1979-07-25 1981-04-08 Gen Electric Battery charger

Also Published As

Publication number Publication date
JPS5992546U (en) 1984-06-23

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