JPH04133628A - Rechargeable electrical equipment - Google Patents

PURPOSE:To lengthen the lifetime of a battery for a charger, and to operate an electrical equipment immediately after an electrical equipment body is installed to the charger even when the capacity of the battery is empty by using an output from the charger as an operating power supply when the electrical equipment is operated under the state in which the electrical equipment body is mounted to the charger. CONSTITUTION:When an electrical equipment body 1 is set up to a charger 3, a point A5 is changed into 'H' from 'L', a transistor Q1 is turned ON, and the port A1 of a control circuit 16 is brought to 'L'. When an operating switch not shown is turned ON and the state of operation is brought, the control circuit 16 turns a transistor Q2 ON and a transistor Q3 OFF in a power supply changeover circuit 17. Consequently, voltage V1 obtained by dividing the voltage of a dry cell 11 by resistors R5, R6 is applied to power terminals A5, A6 through a voltage-dividing terminal 10 and the transistor Q2, and a low-frequency output circuit 15 is operated while using the dry cell 11 as a power supply. Power consumed by a battery Bt is charged by a charging circuit 19.

【発明の詳細な説明】[Detailed description of the invention] 【産業上の利用分野】[Industrial application field]

本発明は充電式低周波治療器のような充電式電気機器に
間するものである。The present invention is applicable to rechargeable electrical equipment such as a rechargeable low frequency therapy device.

【従来の技術】[Conventional technology]

従来、乾電池を電源とする充電器に電気機器本体を装着
して電気機器本体内の蓄電池を充電させる低周波治療器
のような電気機器は、充電器に電気機器本体を装着した
状態で、機器動作をオンすると、蓄電池を電源として動
作し、動作終了時から充電器の出力で蓄電池を充電して
いた。Conventionally, electric devices such as low-frequency therapy devices that charge the storage battery inside the electric device by attaching the electric device to a charger that uses dry batteries as a power source, When the operation is turned on, it operates using the storage battery as a power source, and from the time the operation ends, the storage battery is charged with the output of the charger.

【発明が解決しようとする課題】[Problem to be solved by the invention]

上記従来例では蓄電池を動作電源としている期間の蓄電
池の消耗分を充電する場合には充電時の損失（約２０％
）があるため、その骨充電器の乾電池の容量がロスして
いた。 また蓄電池の容量が空の場合、充電器に電気機器本体を
装着しても直ぐに電気機器を動作させることができない
という問題があった。 本発明は上述の問題点に鑑みて為されたもので１、その
目的とするところは充電器の乾電池の寿命を延ばし、し
かも蓄電池の容量が空でも充電器に電気機器本体を装着
すれば直ちに動作させることができる充電式電気機器を
提供することを目的とする６In the above conventional example, when charging the amount of consumption of the storage battery during the period when the storage battery is used as the operating power source, there is a loss during charging (approximately 20%).
), the battery capacity of the bone charger was being lost. Furthermore, when the capacity of the storage battery is empty, there is a problem in that even if the electric device is attached to the charger, the electric device cannot be operated immediately. The present invention has been made in view of the above-mentioned problems.1.The purpose of the present invention is to extend the life of the dry battery of the charger, and even if the capacity of the storage battery is empty, when the electric device is attached to the charger, The purpose is to provide rechargeable electrical equipment that can be operated.6

【課題を解決するための手段】[Means to solve the problem]

本発明は、上述の目的を達成するために、蓄電池と動作
電源とする充電式電気機器において、乾電池を電源とす
る充電器に着脱自在に装着される電気機器本体と、該電
気機器本体が充電器本体に装着されると充電器本体から
の出力が接続されて蓄電池を充電する充電端子と、電気
機器本体が充電器に装着された状態で機器動作をオンす
ると充電端子に接続された充電器本体の出力を動作電源
として使用するように切り替える回路とを備えたもので
ある。 （作用］ 而して本発明によれば、充電器に電気機器本体を装着し
た状態で電気機器を動作させる場合には、動作電源とし
て充電器の出力が使用されるように切り替えられるため
、従来のように蓄電池を使用して動作させ、その動作終
了後充電を行う堝きに比べて乾電池の容量のロスが少な
く、その結果乾電池の寿命を延ばすことができる。 しかも蓄電池の容量が空でも上記の充電器に装着すれば
直ちに充電器の乾電池を電源として動作させることがで
きる。In order to achieve the above-mentioned object, the present invention provides a rechargeable electric device that uses a storage battery as an operating power source, an electric device main body that is detachably attached to a charger that uses a dry battery as a power source, and a rechargeable electric device that uses a dry battery as a power source. A charging terminal that connects the output from the charger to charge the storage battery when attached to the charger, and a charger that connects to the charging terminal when the device is turned on with the electrical device attached to the charger. It is equipped with a circuit that switches the output of the main body to be used as an operating power source. (Function) According to the present invention, when operating an electrical device with the main body of the electrical device attached to the charger, the output of the charger is switched to be used as the operating power source. There is less loss of dry cell capacity than in the case where a storage battery is used for operation and then charged after the operation is completed, and as a result, the life of the dry cell battery can be extended.Furthermore, even if the storage battery is empty, the above-mentioned If you attach it to a charger, you can immediately use the charger's dry batteries as a power source.

【実施例】【Example】

以下本発明を実施例により説明する。 第１図は本発明実施例の斜視図を示しており、電気機器
たる低周波治療器１はカード状の薄型電気機器本体２に
第２図に示す回路と動作電源とする蓄電池３を内蔵して
おり、充電器３の装着用凹千面４−トに着脱自在に装着
できるようになっている。電気機器本体２は表面に低周
波出力の強弱を選択するスイッチＳ、、、Ｓ、ｂと、出
力速度の速遅を設定するスイッチＳ、、Ｓ２ｂと、たた
きや、もみなどの感触モードを選択するモード選択スイ
・ソチＳｉの操作釦を露出させ、また一端面には機器の
動作をオン、オフするための動作スイッチＳ４と、低周
波導子５のジャック６を着脱自在に接続するプラグ（図
示せず）とを設け、また他端面には充電器３に装着した
ときに充電器３に設けである充電出力端子７ａ、７ｂに
接続される充電端子８ａ、８ｂと、充電器３に設けであ
る分圧出力端子９に接続される分圧端子１０とを設けて
いる。 充電器３は第２図に示すように乾電池１１と、この乾電
池１１の両端間に接続された抵抗Ｒ２Ｒ６の直列回路か
らなる分圧器１２とを内蔵し。 乾電池１１の両端を充電出力端子７ａ、７ｂに接続し、
抵抗Ｒ９，Ｒ，の接続点を分圧出力端子９に接続してい
る。 電気機器本体２内の回路は低周波出力回路１３と、スイ
ッチｓ、、、ｓ、、、ｓ、、、ｓ２ｂ、ｓ、及びＳ４か
らなる操作部１４の操作信号に基づいて低周波出力回路
１５の動作を制御するとともに、充電器３に対する装着
の監視と、後述の電源切り替え回路１７の制御とを行う
マイクロコンピュータからなる制御回路１６と、充電器
３に対する装着を検知して制御回路１６に装着監視のた
めの信号を与える充電器検知回路１８と、上記電源切り
替え回路１７と、充電器３からの充電出力で動作して蓄
電池Ｂｔを充電する充電回路１９とを備えている。 次に本実施例の動作を第３図のタイムチャートで説明す
る。 電気機器本体２が充電器３に装着されていないときは充
電端子８ａ、８ｂ間には充電器３からの充電出力たる乾
電池１１の電圧が印加されていないなめ、充！端子８ａ
、８ｂ間に接続されている充電器検知回路１８の抵抗Ｒ
１、Ｒ４の直列回路の分圧点Ａ、の電圧は第３図（ａ＞
に示すようにＬ”で、抵抗Ｒ２を通じてベース電流が流
れずトランジスタＱ、はオフ状態にある６ 一方制譚回路１６は蓄電池Ｂｔが電源端子Ａ。 に接続されて動作状態にあり、そのボートＡ２、Ａ、を
第３図（ｃ）、（ｄ）に示すように夫々゛′ト（”、“
Ｉ、”としている、そのため電源切り替え回路１７のト
ランジスタＱ２がオフ、Ｑ、がオンし、トランジスタＱ
、を通じて蓄電池Ｂｔ電圧Ｖ２が低周波出力回路１５の
電源端子Ａ４に、また充電器検知回路１８の電源端子Ａ
６に夫々接続される。 このときの電源端子Ａ４の印加電圧は第３図（ｅ）に示
すようになる。 ここで充電器検知回路１８ではトランジスタＱがオフし
ているため、抵抗Ｒ１を通じて制御回路１６のボートＡ
１が第３図（ｂ）に示すように蓄電池Ｂｔの電圧により
“■４”となる。 この状態で動作スイッチＳ、がオンされると、制御回路
１６の制御の下で、蓄電池Ｂｔを電源として低周波出力
回路１５が動作を開始するのである。 次に電気機器本体１が充電器３に装着されて、第２図に
示す回路が形成されると、充電器検知回路１８の抵抗Ｒ
３、Ｒ１の両端には乾電池１１の電圧が印加され、Ａ６
点が第３図（ａ）に示すように“Ｌ”から“Ｈ”になり
、そのためトランジスタＱ１がオンし、制御回路１６の
ボートＡＩを第３図（ｂ）に示すように“Ｌ”とする。 制御回路１６はこのボートＡＩが′Ｌ”に反転したこと
で充電器３への装着されたことを検知する。このとき動
作スイッチＳ、がオフであれば、ボートＡ２．　Ａ、の
出力は上述のままで、低周波出力回路１５の電源端子Ａ
、は蓄電池Ｂ　ｔ、の電圧Ｖ２がトランジスタＱ３を通
じて印加された状態となっている。 方充電回路１９は充電器３からの出力で蓄電池Ｂｔを充
電する。 そして動作スイッチＳ４がオンされて動作状態となると
、制御回路１６はボートＡ２．ボートＡ。 の状態を第３図（ｃ）、（ｄ）に示すように反転し、電
源切り替え回路１７のトランジスタＱ２をオン、トラン
ジスタＱ、をオフする。従って乾電池１１の電圧を抵抗
Ｒ，，Ｒ，で分圧した電圧■が分圧端子１０とトランジ
スタＱ２を通じて電源端子Ａ７．Ａ、に印加され、低周
波出力回路１５は乾電池１１を電源として動作すること
になる。また蓄電池Ｂｔで消費される電力は充電回路１
９により充電される。 このように充電器３に電気機器本体１を装着した状態で
動作スイッチＳ４をオンした場合には充電器３の乾電池
１１を動作電源として使用するのである。 ところで上記実施例では動作電源を乾電池１１の電圧を
充電器３内の分圧器１２で分圧して得ていたが、第５図
に示すように電気機器本体１内に分圧器１２を設けて、
電気機器本体１内で分圧するようにしても良い、この場
合第４図に示すように充電器３側の分圧出力端子つと、
電気機器本体】側の分圧端子１０が不要となる。 また分圧器１２の代わりに、第６図に示すように定電圧
回路２０を用いることにより乾電池１１の電圧を定電圧
化して電圧Ｖ１を得るようにしても良い。この定電圧回
路２０は抵抗Ｒ７とツェナーダイオードＺＤによって乾
電池１１の電圧を定電圧化し、この電圧■、をトランジ
スタＱ４のベース電圧とすることで、定電圧■１を得る
ようなっている。 更に上記各実施例では乾電池１１の電圧を分圧若しくは
定電圧化して電圧Ｖ１を得、この電圧Ｖを動作オン時の
動作電源電圧とするようにしているが、第７図に示すよ
うに乾電池１１の電圧をそのまま動作オン時の動作電源
電圧としても良い。The present invention will be explained below with reference to Examples. FIG. 1 shows a perspective view of an embodiment of the present invention, and a low-frequency treatment device 1, which is an electric device, has a card-shaped thin electric device main body 2 that has a built-in circuit shown in FIG. 2 and a storage battery 3 serving as an operating power source. It can be detachably attached to the concave 4-tooth for attaching the charger 3. The electrical device main body 2 has switches S, S, b for selecting the strength of low frequency output, switches S, S2b for setting the output speed, and selects a tactile mode such as tapping or kneading on the surface. The operation button of the Sochi Si mode selection switch is exposed, and on one end there is an operation switch S4 for turning on and off the operation of the device, and a plug for removably connecting the jack 6 of the low frequency conductor 5. (not shown), and the other end face has charging terminals 8a and 8b connected to the charging output terminals 7a and 7b provided on the charger 3 when the charger 3 is attached, and charging terminals 8a and 8b provided on the charger 3. A voltage dividing terminal 10 connected to a voltage dividing output terminal 9 is provided. As shown in FIG. 2, the charger 3 includes a dry battery 11 and a voltage divider 12 consisting of a series circuit of resistors R2R6 connected across the dry battery 11. Connect both ends of the dry battery 11 to charging output terminals 7a and 7b,
The connection point between the resistors R9 and R is connected to the divided voltage output terminal 9. The circuit in the electrical equipment main body 2 includes a low frequency output circuit 13 and a low frequency output circuit 15 based on operation signals from an operation unit 14 consisting of switches s, , s, , s, , s2b, s, and S4. a control circuit 16 consisting of a microcomputer that controls the operation of the charger, monitors the attachment to the charger 3, and controls the power supply switching circuit 17 described later; It includes a charger detection circuit 18 that provides a signal for monitoring, the power supply switching circuit 17, and a charging circuit 19 that operates with the charging output from the charger 3 and charges the storage battery Bt. Next, the operation of this embodiment will be explained with reference to the time chart of FIG. When the electrical device main body 2 is not attached to the charger 3, the voltage of the dry battery 11, which is the charging output from the charger 3, is not applied between the charging terminals 8a and 8b, and the charging is completed! terminal 8a
, 8b of the charger detection circuit 18 connected between
1. The voltage at the voltage dividing point A of the series circuit of R4 is shown in Figure 3 (a>
As shown in , the transistor Q is in the OFF state because the base current does not flow through the resistor R2.6 On the other hand, the control circuit 16 is in an operating state with the storage battery Bt connected to the power supply terminal A. , A, respectively as shown in Fig. 3(c) and (d).
Therefore, transistor Q2 of the power supply switching circuit 17 is turned off, Q is turned on, and transistor Q
, the storage battery Bt voltage V2 is applied to the power supply terminal A4 of the low frequency output circuit 15, and also to the power supply terminal A of the charger detection circuit 18.
6, respectively. The voltage applied to the power supply terminal A4 at this time is as shown in FIG. 3(e). Here, in the charger detection circuit 18, since the transistor Q is off, the port A of the control circuit 16 is connected through the resistor R1.
1 becomes "■4" depending on the voltage of the storage battery Bt, as shown in FIG. 3(b). When the operation switch S is turned on in this state, the low frequency output circuit 15 starts operating under the control of the control circuit 16 using the storage battery Bt as a power source. Next, when the electrical device main body 1 is attached to the charger 3 and the circuit shown in FIG. 2 is formed, the resistance R of the charger detection circuit 18 is
3. The voltage of the dry battery 11 is applied to both ends of R1, and A6
The point changes from "L" to "H" as shown in FIG. 3(a), so the transistor Q1 turns on, causing the port AI of the control circuit 16 to go "L" as shown in FIG. 3(b). do. The control circuit 16 detects that the boat AI is attached to the charger 3 by inverting it to 'L'.At this time, if the operation switch S is off, the output of the boat A2.A is as described above. Leave it as it is, and connect the power supply terminal A of the low frequency output circuit 15.
, is in a state where the voltage V2 of the storage battery Bt is applied through the transistor Q3. The charging circuit 19 charges the storage battery Bt with the output from the charger 3. Then, when the operation switch S4 is turned on and becomes operational, the control circuit 16 controls the boat A2. Boat A. The state of is reversed as shown in FIGS. 3(c) and 3(d), and the transistor Q2 of the power switching circuit 17 is turned on and the transistor Q is turned off. Therefore, the voltage (2) obtained by dividing the voltage of the dry battery 11 by the resistors R, , R, passes through the voltage dividing terminal 10 and the transistor Q2 to the power supply terminal A7. A, and the low frequency output circuit 15 operates using the dry battery 11 as a power source. In addition, the power consumed by the storage battery Bt is the charging circuit 1
It is charged by 9. In this way, when the operation switch S4 is turned on with the electric device main body 1 attached to the charger 3, the dry battery 11 of the charger 3 is used as an operation power source. Incidentally, in the above embodiment, the operating power source was obtained by dividing the voltage of the dry battery 11 with the voltage divider 12 in the charger 3, but as shown in FIG.
The voltage may be divided within the electrical equipment main body 1. In this case, as shown in FIG.
The voltage dividing terminal 10 on the electrical equipment main body] side becomes unnecessary. Further, instead of the voltage divider 12, a constant voltage circuit 20 may be used as shown in FIG. 6 to constantize the voltage of the dry battery 11 to obtain the voltage V1. This constant voltage circuit 20 constantizes the voltage of the dry battery 11 using a resistor R7 and a Zener diode ZD, and obtains a constant voltage (1) by using this voltage (2) as the base voltage of the transistor Q4. Further, in each of the above embodiments, the voltage of the dry battery 11 is divided or made into a constant voltage to obtain the voltage V1, and this voltage V is used as the operating power supply voltage when the operation is turned on. The voltage No. 11 may be used as it is as the operating power supply voltage when the operation is turned on.

【発明の効果】【Effect of the invention】

本発明は蓄電池を動作電源とする充電式電気機器におい
て、乾電池を電源とする充電器に着脱自在に装着される
電気機器本体と、該電気機器本体が充電器本体に装着さ
れると充電器本体からの出力が接続されて蓄電池を充電
する充電端子と、電気機器本体が充電器に装着された状
態で機器動作をオンすると充電端子に接続された充電器
本体の出力を動作電源として使用するように切り替える
回路とを備えたものであるから、充電器に電気機器本体
を装着した状態で電気機器を動作させる場合には、動作
電源として充電器の出力を使用することができ、そのた
め従来のように蓄電池を使用して動作させてその動作終
了後充電を行う場合に比べて乾電池の容量のロスが少な
く、結果乾電池の寿命を延ばすことができ、しかも蓄電
池の容量が空でも上記充電器への装着と同時に乾電池を
電源として動作させることができるという効果がある。The present invention relates to a rechargeable electrical device that uses a storage battery as an operating power source, and includes an electrical device main body that is detachably attached to a charger that uses a dry battery as a power source, and a charger main body that is attached to a charger main body. The output from the charger is connected to the charging terminal to charge the storage battery, and when the device is connected to the charger and the device is turned on, the output from the charger connected to the charging terminal is used as the operating power source. Therefore, when operating an electrical device with the main body of the electrical device attached to the charger, the output of the charger can be used as the operating power source. Compared to the case where a storage battery is used for operation and then charged after the operation is completed, there is less loss of capacity of the dry cell battery, and as a result, the life of the dry cell battery can be extended.Moreover, even when the storage battery is empty, it is possible to It has the effect of being able to operate using dry batteries as a power source at the same time as being installed.

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

第１図は本発明の一実施例の斜視図、第２図は同上の回
路構成図、第３図は同上の動作説明用タイムチャート、
第４図は本発明の別の実施例の斜視図、第５図は同上の
回路構成図、第６図は本発明の他の実施例の回路構成図
、第７図は本発明のその他の実施例の回路構成図である
。 １は低周波治療器、２は電気機器本体、３は充電器、８
ａ、８ｂは充電端子、１１は乾電池、１６は制御回路、
１７は電源切り替え回路、１８は充電器検知回路、１９
は充電回路、Ｂｔは蓄電池である。 代理人　弁理士　石　１）長　七 第３図 Ｕ臼（〕：〕乙−＋−更カイ乍オン 手続補正書く自発） 平成３年２月１日FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a circuit configuration diagram of the same as the above, and FIG. 3 is a time chart for explaining the operation of the same as the above.
FIG. 4 is a perspective view of another embodiment of the present invention, FIG. 5 is a circuit diagram of the same as above, FIG. 6 is a circuit diagram of another embodiment of the present invention, and FIG. 7 is a diagram of another embodiment of the present invention. FIG. 3 is a circuit configuration diagram of an example. 1 is a low frequency treatment device, 2 is the electrical equipment itself, 3 is a charger, 8
a, 8b are charging terminals, 11 is a dry battery, 16 is a control circuit,
17 is a power supply switching circuit, 18 is a charger detection circuit, 19
is a charging circuit, and Bt is a storage battery. Agent: Patent Attorney Ishi 1) Chief, Figure 7, Figure 3, U ():] Voluntary writing of amendments to the proceedings on February 1, 1991