JPH0745307A - Refreshing method of secondary battery, and charging device with refreshing function - Google Patents
Refreshing method of secondary battery, and charging device with refreshing functionInfo
- Publication number
- JPH0745307A JPH0745307A JP5185823A JP18582393A JPH0745307A JP H0745307 A JPH0745307 A JP H0745307A JP 5185823 A JP5185823 A JP 5185823A JP 18582393 A JP18582393 A JP 18582393A JP H0745307 A JPH0745307 A JP H0745307A
- Authority
- JP
- Japan
- Prior art keywords
- unit
- battery
- voltage
- secondary battery
- discharge
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ニッケルカドミウム電
池やニッケル水素電池などの二次電池で生じる、メモリ
−効果を解除するための二次電池のリフレッシュ方法お
よびリフレッシュ機能付き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 secondary battery refreshing method and a charging device with a refreshing function for canceling the memory effect that occurs in secondary batteries such as nickel-cadmium batteries and nickel-hydrogen batteries. .
【０００２】[0002]
【従来の技術】最近、携帯用電話機が普及されつつある
が、このような携帯用電話機には、電源としてニッケル
カドミウム電池やニッケル水素電池などが用いられてい
る。ところでニッケルカドミウム電池やニッケル水素電
池では、放電終止電圧が比較的高い状態で充放電を繰り
返すと、数サイクル後の放電において、見かけ上電池容
量が減少することが知られている。これをメモリ−効果
と称している。メモリ−効果は、一度深い放電をするこ
とで解除できるものであり、これを一般にリフレッシュ
と称している。2. Description of the Related Art Recently, portable telephones have become widespread, and nickel-cadmium batteries, nickel-hydrogen batteries, etc. are used as power sources in such portable telephones. By the way, it is known that in a nickel-cadmium battery or a nickel-hydrogen battery, when charging and discharging are repeated in a state where the discharge end voltage is relatively high, the battery capacity apparently decreases after discharging after several cycles. This is called a memory effect. The memory effect can be canceled by performing deep discharge once, and this is generally called refresh.
【０００３】[0003]
【発明が解決しようとする課題】ところが、これらニッ
ケルカドミウム電池やニッケル水素電池を電源として使
用している携帯用電話機では、常に待ち受け状態か通話
状態にあり、動作を停止させないために、リフレッシュ
をいつ行うかということで問題がでてくる。つまり、こ
のようなリフレッシュでは、深い放電を行わなければな
らにために、この放電により電池電圧が低下した時に、
電話機が正常に動作しなくなるという問題が生じてく
る。However, in the portable telephones using the nickel-cadmium battery or the nickel-hydrogen battery as a power source, the mobile phone is always in a standby state or in a call state, and is not refreshed in order not to stop the operation. There is a problem as to whether or not to do it. In other words, in such a refresh, since deep discharge must be performed, when the battery voltage drops due to this discharge,
The problem arises that the phone does not work properly.
【０００４】そこで従来ではこれを防止するために、予
備電池を用意し、電池のリフレッシュを行う際には、電
話機内の電池を取り外して予備の電池を使用することに
より、電話機が正常に動作しなくなるのを防止する対策
をとっていた。しかし、このように電池のリフレッシュ
を予定して予め予備電池を用意しておくのでは、経済的
に不利であるとともに、リフレッシュの際の電池の出し
入れも面倒であり、実用的でなくなるという問題点があ
った。Therefore, in order to prevent this, conventionally, a spare battery is prepared, and when the battery is refreshed, the battery inside the telephone is removed and the spare battery is used, so that the telephone operates normally. I was taking measures to prevent it from disappearing. However, it is economically disadvantageous to prepare a spare battery in advance for refreshing the battery in this way, and it is also troublesome to insert and remove the battery at the time of refreshing, which is not practical. was there.
【０００５】本発明は上記事情に鑑みてなされたもの
で、電池を製品本体に装着したままでリフレッシュを行
うことができる二次電池のリフレッシュ方法およびリフ
レッシュ機能付き充電装置を提供することを目的とす
る。The present invention has been made in view of the above circumstances, and an object thereof is to provide a refreshing method for a secondary battery and a charging device with a refreshing function, which can be refreshed while the battery is still attached to the product body. To do.
【０００６】[0006]
【課題を解決するための手段】本発明は、複数の単位電
池からなる二次電池の端子電圧が所定電圧以下に低下し
ない範囲で、前記各単位電池ごとにリフレッシュ放電を
行うようにしている。本発明は、複数の単位電池からな
る二次電池と、この二次電池の各単位電池に選択的に接
続された、該単位電池のリフレッシュ放電を行う放電手
段と、この放電手段によりリフレッシュ放電される前記
単位電池の端子電圧を検出する電圧検出手段と、前記二
次電池の端子電圧が所定電圧以下に低下しない範囲で前
記電圧検出手段により検出される前記単位電池の端子電
圧に従って前記放電手段による前記単位電池のリフレッ
シュ放電を制御するとともに前記二次電池の各単位電池
に対する前記放電手段の接続を切り換え制御する制御手
段により構成されている。According to the present invention, refresh discharge is performed for each unit battery within a range in which the terminal voltage of a secondary battery composed of a plurality of unit batteries does not drop below a predetermined voltage. The present invention relates to a secondary battery composed of a plurality of unit batteries, a discharge unit selectively connected to each unit battery of the secondary battery, for performing a refresh discharge of the unit battery, and a refresh discharge by the discharge unit. Voltage detecting means for detecting the terminal voltage of the unit battery, and the discharging means according to the terminal voltage of the unit battery detected by the voltage detecting means within a range in which the terminal voltage of the secondary battery does not drop below a predetermined voltage. The control means controls the refresh discharge of the unit battery and controls the connection of the discharge means to each unit battery of the secondary battery.
【０００７】[0007]
【作用】この結果、本発明によれば、複数の単位電池か
らなる二次電池のリフレッシュを単位電池ごとに行うこ
とにより、各単位電池のリフレッシュ放電時にも、二次
電池としての全電圧値を製品の動作下限電圧以上に常に
保つことができ、製品の動作状態を維持することができ
る。As a result, according to the present invention, by refreshing the secondary battery composed of a plurality of unit batteries for each unit battery, the total voltage value of the secondary battery can be maintained even during the refresh discharge of each unit battery. The operating voltage of the product can always be kept above the operating lower limit voltage, and the operating state of the product can be maintained.
【０００８】[0008]
【実施例】以下、本発明の一実施例を図面に従い説明す
る。図１は、同実施例を電話機に充電装置を一体に組み
込んだビルトイン型のものに適用した例を示している。
図において、１はニッケルカドミウム電池やニッケル水
素電池等の複数の二次電池の組からなり、この電池１は
複数（図示例では３個）の単位電池１ａ、１ｂ、１ｃに
より構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an example in which the same embodiment is applied to a built-in type in which a charging device is integrally incorporated in a telephone.
In the figure, reference numeral 1 denotes a set of a plurality of secondary batteries such as a nickel-cadmium battery and a nickel-hydrogen battery, and the battery 1 is composed of a plurality (three in the illustrated example) of unit batteries 1a, 1b, 1c.
【０００９】この場合、かかる二次電池１は、図２に示
すように３個の単位電池１ａ、１ｂ、１ｃのうちの単位
電池１ａの正極端子と単位電池１ｂの負極端子を共通接
続して出力端子ａに接続し、単位電池１ｃの正極端子を
出力端子ｂに接続し、単位電池１ｂの正極端子と単位電
池１ｃの負極端子を共通接続して出力端子ｃに接続し、
単位電池１ａの負極端子を出力端子ｄに接続し、出力端
子ａ，ｄ間に単位電池１ａの端子電圧（ここでは定格電
圧１．２Ｖ）を出力し、出力端子ｃ、ｄ間に単位電池１
ａと１ｂを直列接続した端子電圧（１．２Ｖ×２＝２．
４Ｖ）を出力し、出力端子ｂ、ｄ間に単位電池１ａ、１
ｂ、１ｃを直列接続した端子電圧（１．２Ｖ×３＝３．
６Ｖ）を出力するようにしている。In this case, the secondary battery 1 has the positive terminal of the unit battery 1a and the negative terminal of the unit battery 1b of the three unit batteries 1a, 1b, 1c connected in common as shown in FIG. Connect to the output terminal a, connect the positive terminal of the unit battery 1c to the output terminal b, connect the positive terminal of the unit battery 1b and the negative terminal of the unit battery 1c in common, and connect to the output terminal c,
The negative terminal of the unit battery 1a is connected to the output terminal d, the terminal voltage of the unit battery 1a (here, rated voltage 1.2V) is output between the output terminals a and d, and the unit battery 1 is connected between the output terminals c and d.
a and 1b connected in series (1.2V × 2 = 2.
4V) and outputs the unit batteries 1a, 1 between the output terminals b, d.
b, 1c connected in series (1.2V × 3 = 3.
6V) is output.
【００１０】そして、このような二次電池１に対して出
力端子ａ、ｂ、ｃと出力端子ｄの間に、放電部２、充電
部３および電圧検出部４を接続している。この場合、放
電部２は、各単位電池１ａ、１ｂ、１ｃに選択的に接続
され、それぞれ単位電池１ａ、１ｂ、１ｃのリフレッシ
ュ放電を行うようにしている。また、充電部３も各単位
電池１ａ、１ｂ、１ｃに選択的に接続され、それぞれ単
位電池１ａ、１ｂ、１ｃに対するリフレッシュ放電後の
充電を行うようにしている。ここで充電部３には、電源
部８が接続され、各単位電池１ａ、１ｂ、１ｃの充電の
際の電源を供給するようにしている。電圧検出部４は、
放電部２、充電部３により充放電される各単位電池１
ａ、１ｂ、１ｃの端子電圧を検出するようにしている。The discharging unit 2, the charging unit 3 and the voltage detecting unit 4 are connected between the output terminals a, b and c and the output terminal d of the secondary battery 1. In this case, the discharge unit 2 is selectively connected to each of the unit batteries 1a, 1b, 1c to perform refresh discharge of each of the unit batteries 1a, 1b, 1c. The charging unit 3 is also selectively connected to each of the unit batteries 1a, 1b, 1c so that the unit batteries 1a, 1b, 1c can be charged after refresh discharge. Here, the power source unit 8 is connected to the charging unit 3 to supply power for charging the unit batteries 1a, 1b, 1c. The voltage detector 4 has
Each unit battery 1 charged and discharged by the discharging unit 2 and the charging unit 3.
The terminal voltages of a, 1b, and 1c are detected.
【００１１】また、二次電池１の出力端子ｂとｄの間に
制御部５および表示部６および通話部９が接続され、そ
れぞれに二次電池１から端子電圧が供給されている。こ
の場合、制御部５は、スイッチ部７からのリフレッシュ
スタ−ト信号により、二次電池１の端子電圧が所定電圧
以下に低下しない範囲で、電圧検出部４により検出され
る各単位電池１ａ，１ｂ，１ｃの端子電圧に従って放電
部２によるリフレッシュ放電を制御するとともに、リフ
レッシュ放電後の充電部３による充電を制御し、また各
単位電池１ａ、１ｂ、１ｃに対する放電部２および充電
部３の接続を切り換え制御するようにしている。なお、
９は電話機の通話部で、常時二次電池１の端子電圧が供
給されるとともに、制御部５の指示により通話状態を制
御されるようになっている。A control unit 5, a display unit 6 and a communication unit 9 are connected between the output terminals b and d of the secondary battery 1, and a terminal voltage is supplied from the secondary battery 1 to each of them. In this case, the control unit 5 receives the refresh start signal from the switch unit 7 within a range in which the terminal voltage of the secondary battery 1 does not drop below a predetermined voltage. Controlling the refresh discharge by the discharge unit 2 according to the terminal voltage of 1b, 1c, controlling the charge by the charging unit 3 after the refresh discharge, and connecting the discharge unit 2 and the charging unit 3 to each unit battery 1a, 1b, 1c. Is controlled by switching. In addition,
Reference numeral 9 is a telephone call section of the telephone, which is constantly supplied with the terminal voltage of the secondary battery 1 and whose call state is controlled by an instruction from the control section 5.
【００１２】次に、以上のように構成した実施例の動作
を説明する。いま、電話機の通話部９は、二次電池１の
端子電圧が供給され、正常に動作しているものとする。
この状態から二次電池１のリフレッシュを必要とする場
合には、スイッチ部７からリフレッシュスタ−ト信号が
出力され、制御部５に与えられると、制御部５により図
３に示す動作が実行される。Next, the operation of the embodiment configured as described above will be described. Now, it is assumed that the call unit 9 of the telephone is supplied with the terminal voltage of the secondary battery 1 and is operating normally.
When the secondary battery 1 needs to be refreshed from this state, when the refresh start signal is output from the switch unit 7 and given to the control unit 5, the control unit 5 executes the operation shown in FIG. It
【００１３】まず、１番目の単位電池１ａ（端子ａ、
ｄ）を選択する（ステップ３０１）。次いで、放電部２
に放電開始の指示を与え、放電を開始する（ステップ３
０２）。放電が開始されると、電圧検出部４において単
位電池１ａの端子電圧を検知し（ステップ３０３）、こ
の端子電圧が単位電池１ａのリフレッシュに必要な所定
電圧まで低下したか、判断する（ステップ３０４）。こ
こで端子電圧がリフレッシュに必要な所定電圧になって
いなければ、ステップ３０３、３０４を繰り返してリフ
レッシュ放電を続ける。その後、単位電池１ａの端子電
圧が所定電圧になってステップ３０４でＹＥＳと判断す
ると、次に充電部３に充電開始の指示を与え、充電を開
始する（ステップ３０５）。充電が開始されると、電圧
検出部４において単位電池１ａの端子電圧を検知し（ス
テップ３０６）、この端子電圧が単位電池１ａの定格電
圧まで上昇したか判断する（ステップ３０７）。ここで
端子電圧が定格電圧になっていなければ、ステップ３０
６、３０７を繰り返して充電を続ける。その後、単位電
池１ａの端子電圧が定格電圧になってステップ３０７で
ＹＥＳと判断すると、ステップ３０８に進み、すべての
単位電圧のリフレッシュが終了したか否かを判断する。
ここでは終了していないため、２番目の単位電池１ｂ
（端子ａ、ｃ）を選択する（ステップ３０９）。First, the first unit battery 1a (terminal a,
d) is selected (step 301). Then, the discharge unit 2
To the discharge start instruction to start discharge (step 3
02). When the discharge is started, the voltage detection unit 4 detects the terminal voltage of the unit battery 1a (step 303) and determines whether this terminal voltage has dropped to a predetermined voltage necessary for refreshing the unit battery 1a (step 304). ). If the terminal voltage is not the predetermined voltage required for refreshing, steps 303 and 304 are repeated to continue refresh discharge. After that, when the terminal voltage of the unit battery 1a becomes a predetermined voltage and YES is determined in step 304, the charging unit 3 is instructed to start charging and charging is started (step 305). When charging is started, the voltage detection unit 4 detects the terminal voltage of the unit battery 1a (step 306) and determines whether this terminal voltage has risen to the rated voltage of the unit battery 1a (step 307). If the terminal voltage is not the rated voltage here, step 30
Repeat steps 6 and 307 to continue charging. After that, when the terminal voltage of the unit battery 1a becomes the rated voltage and it is determined to be YES in step 307, the process proceeds to step 308, and it is determined whether or not the refresh of all the unit voltages is completed.
Since it is not finished here, the second unit battery 1b
(Terminals a and c) are selected (step 309).
【００１４】そしてステップ３０２に戻って、ステップ
３０２からステップ３０８までの一連の動作を、２番目
の単位電池１ｂについて行い、さらに同様の動作を３番
目の単位電池１ｃ（端子ｂ、ｃ）についても行う。そし
てステップ３０８でＹＥＳと判断すると、すべての単位
電池１ａ〜１ｃのリフレッシュを終了する。Then, returning to step 302, the series of operations from step 302 to step 308 is performed for the second unit battery 1b, and the same operation is performed for the third unit battery 1c (terminals b, c). To do. If YES is determined in step 308, refreshing of all the unit batteries 1a to 1c is completed.
【００１５】図４は、このようになされる二次電池１の
リフレッシュ状態を説明するものである。この場合、図
示するように、電話機（制御部５、表示部６及び通話部
９）の動作下限電圧を３．３Ｖとする。また、二次電池
１は、各単位電池１ａ、１ｂ、１ｃの定格電圧を１．２
Ｖとし、合計１．２×３＝３．６Ｖを製品に供給してい
るものとする。FIG. 4 illustrates the refreshed state of the secondary battery 1 thus configured. In this case, as shown in the figure, the operation lower limit voltage of the telephone (control unit 5, display unit 6, and communication unit 9) is set to 3.3V. The secondary battery 1 has a rated voltage of 1.2 for each unit battery 1a, 1b, 1c.
It is assumed that a total of 1.2 × 3 = 3.6V is supplied to the product.
【００１６】この状態で、二次電池１の各単位電池１
ａ、１ｂ、１ｃは、リフレッシュするために各単位電池
を１．０Ｖまで放電する必要があるものとする。しかし
て、いま仮に、単位電池１ａ、１ｂ、１ｃを同時にリフ
レッシュしたとすると、図中（ａ）に示すように二次電
池１の端子電圧（端子ｂ、ｄ間）が３．０Ｖになって、
電話機の動作下限電圧３．３Ｖより低くなってしまい、
電話機の動作が保証できなくなってしまう。In this state, each unit battery 1 of the secondary battery 1
For a, 1b, and 1c, each unit battery needs to be discharged to 1.0 V in order to be refreshed. If the unit batteries 1a, 1b, 1c are refreshed at the same time, the terminal voltage (between terminals b and d) of the secondary battery 1 becomes 3.0V as shown in (a) of the figure. ,
The lower limit of the operating voltage of the phone is lower than 3.3V,
The operation of the phone cannot be guaranteed.
【００１７】これに対して本発明では、各単位電池１
ａ、１ｂ、１ｃのリフレッシュ放電を１個ずつ行うの
で、図中（ｂ）に示すように二次電池１の端子電圧（端
子ｂ、ｄ間）は、それぞれ単位電池１ａ（端子ａ、ｄ間
のみリフレッシュ）については１．０＋１．２＋１．２
＝３．４［Ｖ］，単位電圧１ｂ（端子ａ、ｃ間のみリフ
レッシュ）については１．２＋１．０＋１．２＝３．４
［Ｖ］、単位電圧１ｃ（端子ｂ、ｃ間のみリフレッシ
ュ）については１．２＋１．２＋１．０＝３．４［Ｖ］
となる。よって各単位電池１ａ〜１ｃがリフレッシュを
行っている時でも、電圧値合計（端子ｂ、ｄ間）が３．
３Ｖ以下になることはなく、電話機は正常な動作を続け
ることができる。On the other hand, in the present invention, each unit battery 1
Since the refresh discharges a, 1b, and 1c are performed one by one, the terminal voltage (between terminals b and d) of the secondary battery 1 is the unit battery 1a (between terminals a and d) as shown in FIG. (Only refresh) 1.0 + 1.2 + 1.2
= 3.4 [V], and unit voltage 1b (refreshing only between terminals a and c) is 1.2 + 1.0 + 1.2 = 3.4.
[V], unit voltage 1c (refreshing only between terminals b and c) is 1.2 + 1.2 + 1.0 = 3.4 [V]
Becomes Therefore, even when the unit batteries 1a to 1c are refreshing, the total voltage value (between the terminals b and d) is 3.
It does not go below 3V and the phone can continue to operate normally.
【００１８】従って、このような実施例によれば、二次
電池１の各単位電池１ａ〜１ｃに順番に放電部２を接続
し、二次電池１の端子電圧が所定電圧以下に低下しない
範囲で、それぞれの単位電池１ａ〜１ｃのリフレッシュ
放電を行うようにしたので、それぞれの単位電池１ａ〜
１ｃのリフレッシュ時にも二次電池１の電圧が、電話機
の動作下限電圧より低下することがなくなり、電話機の
正常な動作状態を常に保つことができる。Therefore, according to such an embodiment, the discharge unit 2 is sequentially connected to each of the unit batteries 1a to 1c of the secondary battery 1 so that the terminal voltage of the secondary battery 1 does not drop below a predetermined voltage. Since the refresh discharge of each unit battery 1a-1c is performed, each unit battery 1a-1c
Even when 1c is refreshed, the voltage of the secondary battery 1 does not drop below the lower limit operation voltage of the telephone, and the normal operating state of the telephone can always be maintained.
【００１９】次に、図５は、本発明の他の実施例を示す
もので、この他の実施例では、電話機と別体に充電装置
を設けるセパレ−ト型のものに適用した例を示してい
る。図において１０は電話機で、この電話機１０には、
電話部１１とこの電話部１１に電源を供給する単位電池
１２ａ〜１２ｃからなる二次電池１２を接続している。Next, FIG. 5 shows another embodiment of the present invention. In this other embodiment, an example applied to a separate type in which a charging device is provided separately from a telephone is shown. ing. In the figure, 10 is a telephone,
The telephone unit 11 and the secondary battery 12 including the unit batteries 12a to 12c for supplying power to the telephone unit 11 are connected.
【００２０】そして、この電話機１０の二次電池１２の
各出力端子ａ〜ｄに充電装置１３を接続している。この
充電装置１３は、上述した図１と同様の構成をなすもの
であり、同一部分には同符号を符して、それらの説明を
省略する。A charging device 13 is connected to the output terminals a to d of the secondary battery 12 of the telephone 10. This charging device 13 has the same configuration as that of FIG. 1 described above, and the same portions are denoted by the same reference numerals and the description thereof will be omitted.
【００２１】このように構成しても上述したと同様にし
て、二次電池１２の各単位電池１２ａ〜１２ｃに順番に
放電部２が接続され、二次電池１２の端子電圧が電話部
１１の動作下限電圧より低下しない範囲で、それぞれの
単位電池１２ａ〜１２ｃのリフレッシュ放電が行われる
ようになり、二次電池１２のリフレッシュ時にも電話機
１０の正常な動作を常に保つことができる。Even with this structure, the discharging unit 2 is connected to each of the unit batteries 12a to 12c of the secondary battery 12 in order and the terminal voltage of the secondary battery 12 is equal to that of the telephone unit 11 in the same manner as described above. The unit batteries 12a to 12c are refresh-discharged within a range not lower than the operation lower limit voltage, and the normal operation of the telephone 10 can always be maintained even when the secondary battery 12 is refreshed.
【００２２】なお、本発明は上記実施例にのみ限定され
ず、要旨を変更しない範囲で適宜変形して実施できる。
例えば、上述した実施例では、二次電池１として３個の
単位電池１ａ、１ｂ、１ｃからなるものについて述べた
が、２個または３個を越える単位電池からなる二次電池
にも適用することができる。また上述では、二次電池１
としてニッケルカドミウム電池やニッケル水素電池など
の二次電池について述べたが、メモリ効果を有するもの
ならば、他の二次電池に適用することもできる。The present invention is not limited to the above-mentioned embodiments, but can be modified and implemented as appropriate without departing from the scope of the invention.
For example, in the above-described embodiment, the secondary battery 1 is composed of three unit batteries 1a, 1b, 1c, but it is also applicable to a secondary battery composed of two or more unit batteries. You can Further, in the above, the secondary battery 1
Although the secondary battery such as the nickel-cadmium battery or the nickel-hydrogen battery is described as above, the secondary battery can be applied to other secondary batteries as long as it has a memory effect.
【００２３】[0023]
【発明の効果】本発明では、二次電池の端子電圧が所定
電圧以下に低下しない範囲で、二次電池のリフレッシュ
を単電池ごとに順番に行うため、それぞれの単位電池の
リフレッシュ時にも、製品の正常な動作状態を常に保つ
ことができる。よって電話機などのような、常に動作状
態を維持しなければならない製品に使用する場合にも、
電話機を正常の動作に維持したまま使用できることにな
る。またリフレッシュのために、予備の二次電池をもう
１セット用意する必要もなくなり、経済的に有利にでき
るとともに、リフレッシュのたびの面倒な電池の出し入
れもなくすことができる。According to the present invention, since the secondary batteries are sequentially refreshed for each unit cell within a range in which the terminal voltage of the secondary batteries does not drop below a predetermined voltage, the product can be refreshed even when refreshing each unit battery. The normal operating condition of can be always maintained. Therefore, even when it is used for products such as telephones that need to be maintained at all times,
You will be able to use the phone while maintaining normal operation. In addition, it is not necessary to prepare another set of spare secondary batteries for refreshing, which is economically advantageous, and it is possible to avoid the troublesome loading and unloading of batteries for each refreshing.
【図１】本発明の一実施例の概略構成を示す図。FIG. 1 is a diagram showing a schematic configuration of an embodiment of the present invention.
【図２】一実施例の二次電池の構成図。FIG. 2 is a configuration diagram of a secondary battery according to an embodiment.
【図３】一実施例を説明するためのフロ−チャ−ト。FIG. 3 is a flowchart for explaining one embodiment.
【図４】一実施例のリフレッシュ時における放電、充電
による電池電圧の変化を表した図。FIG. 4 is a diagram showing changes in battery voltage due to discharge and charge during refreshing in one embodiment.
【図５】本発明の他実施例の概略構成を示す図。FIG. 5 is a diagram showing a schematic configuration of another embodiment of the present invention.
１…二次電池、２…放電部、３…充電部、４…電圧検出
部、５…制御部、６…表示部、７…スイッチ部、８…電
源部、９…通話部、１０…電話機、１１…電話部、１２
…二次電池、１３…充電装置。DESCRIPTION OF SYMBOLS 1 ... Secondary battery, 2 ... Discharge part, 3 ... Charging part, 4 ... Voltage detection part, 5 ... Control part, 6 ... Display part, 7 ... Switch part, 8 ... Power supply part, 9 ... Call part, 10 ... Telephone , 11 ... Telephone department, 12
... secondary battery, 13 ... charging device.
Claims (2)
電圧が所定電圧以下に低下しない範囲で、前記各単位電
池ごとにリフレッシュ放電を行うことを特徴とする二次
電池のリフレッシュ方法。1. A method of refreshing a secondary battery, wherein refresh discharge is performed for each unit battery within a range in which a terminal voltage of the secondary battery including a plurality of unit batteries does not drop below a predetermined voltage.
位電池のリフレッシュ放電を行う放電手段と、 この放電手段によりリフレッシュ放電される前記単位電
池の端子電圧を検出する電圧検出手段と、 前記組電池の端子電圧が所定電圧以下に低下しない範囲
で前記電圧検出手段により検出される前記単位電池の端
子電圧に従って前記放電手段による前記単位電池のリフ
レッシュ放電を制御するとともに前記二次電池の各単位
電池に対する前記放電手段の接続を切り換え制御する制
御手段とを具備したことを特徴とするリフレッシュ機能
付き充電装置。2. A secondary battery composed of a plurality of unit batteries, a discharging unit selectively connected to each unit battery of the secondary battery to perform a refresh discharge of the unit battery, and a refresh discharge by the discharging unit. Voltage detecting means for detecting the terminal voltage of the unit battery, and the discharging means according to the terminal voltage of the unit battery detected by the voltage detecting means within a range in which the terminal voltage of the assembled battery does not drop below a predetermined voltage. A charging device with a refresh function, comprising: a control unit that controls refresh discharge of the unit battery and that controls switching of connection of the discharge unit to each unit battery of the secondary battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5185823A JPH0745307A (en) | 1993-07-28 | 1993-07-28 | Refreshing method of secondary battery, and charging device with refreshing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5185823A JPH0745307A (en) | 1993-07-28 | 1993-07-28 | Refreshing method of secondary battery, and charging device with refreshing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0745307A true JPH0745307A (en) | 1995-02-14 |
Family
ID=16177507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5185823A Pending JPH0745307A (en) | 1993-07-28 | 1993-07-28 | Refreshing method of secondary battery, and charging device with refreshing function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0745307A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010239711A (en) * | 2009-03-30 | 2010-10-21 | Japan Research Institute Ltd | Battery control device, vehicle, and method of controlling the battery |
| WO2019203080A1 (en) | 2018-04-19 | 2019-10-24 | Fdk株式会社 | Charger having failure detection function and failure detection method |
-
1993
- 1993-07-28 JP JP5185823A patent/JPH0745307A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010239711A (en) * | 2009-03-30 | 2010-10-21 | Japan Research Institute Ltd | Battery control device, vehicle, and method of controlling the battery |
| WO2019203080A1 (en) | 2018-04-19 | 2019-10-24 | Fdk株式会社 | Charger having failure detection function and failure detection method |
| US11228186B2 (en) | 2018-04-19 | 2022-01-18 | Fdk Corporation | Charger having failure detection function and failure detection method |
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