JPH0436786Y2 - - Google Patents
Info
- Publication number
- JPH0436786Y2 JPH0436786Y2 JP1986064611U JP6461186U JPH0436786Y2 JP H0436786 Y2 JPH0436786 Y2 JP H0436786Y2 JP 1986064611 U JP1986064611 U JP 1986064611U JP 6461186 U JP6461186 U JP 6461186U JP H0436786 Y2 JPH0436786 Y2 JP H0436786Y2
- Authority
- JP
- Japan
- Prior art keywords
- secondary battery
- voltage
- switch
- flashlight
- control device
- 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
- 239000003990 capacitor Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、一般家庭において使用される懐中電
燈の機能を有する充電式掃除機の制御装置に関す
るものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a control device for a rechargeable vacuum cleaner having the function of a flashlight used in general households.
従来の技術
従来から使用されている懐中電燈付充電式掃除
機を第３図に示す。第３図において、１は掃除機
本体、２はダストボツクス、３は吸込用パイプの
差込み口である。また、掃除機前面には、懐中電
燈をもたせるため小型電球４と反射板５が具備さ
れている。さらに本体１上部には本体スイツチ６
を有し、これにて直流送風機のON−OFFを行な
え、切換スイツチ７では懐中電燈のON−OFFを
行なう構成となつている。８は充電アダプターの
差込み端子である。BACKGROUND ART FIG. 3 shows a conventionally used rechargeable vacuum cleaner with a flashlight. In FIG. 3, 1 is the vacuum cleaner body, 2 is a dust box, and 3 is an insertion port for a suction pipe. Further, the front of the vacuum cleaner is provided with a small light bulb 4 and a reflector plate 5 for holding a flashlight. Furthermore, on the top of the main body 1 there is a main body switch 6.
With this, the DC blower can be turned on and off, and the changeover switch 7 can be used to turn on and off the flashlight. 8 is a plug-in terminal for the charging adapter.
第４図は従来の充電式掃除機の概略電気配線図
を示す。第４図において、交流電源９には充電ア
ダプター１０の電源端子が接続され、出力端子間
には、掃除機本体１内に具備されている充電制御
装置１１が接続され、二次電池１２には上記充電
制御装置１１を介して充電電流が供給されるよう
構成されている。また、二次電池１２の負荷側に
は、本体スイツチ６を介して直流送風機１３が接
続され、切換スイツチ７には、直列に懐中電燈の
電球１４が接続されている。このように上記構成
によれば、掃除機の運転の有無に関係なく電球１
４の「入」「切」が行なわれる。 FIG. 4 shows a schematic electrical wiring diagram of a conventional rechargeable vacuum cleaner. In FIG. 4, a power terminal of a charging adapter 10 is connected to an AC power source 9, a charging control device 11 provided in the vacuum cleaner main body 1 is connected between the output terminals, and a secondary battery 12 is connected to the power terminal of a charging adapter 10. The charging current is supplied via the charging control device 11 described above. Further, a DC blower 13 is connected to the load side of the secondary battery 12 via a main switch 6, and a light bulb 14 of a flashlight is connected in series to the changeover switch 7. In this way, according to the above configuration, the light bulb 1
4 "on" and "off" are performed.
考案が解決しようとする問題点
しかしながら上記構成によると、使用者が掃除
機の運転中や懐中電燈をつけた状態などのスイツ
チを切り忘れた場合に二次電池１２の放電が進
み、第５図に示すごとく、電池の端子間電圧Ｖは
終止電圧V1になるある時間T1以後急激に低下す
る。またこの状態が持続されると電池１２が過放
電状態となり、電池１２の充放電のサイクル寿命
を著しく劣化させたり、電池１２の故障につなが
るといつた多くの問題点を有するものであつた。
特に懐中電燈として使用する場合にあつては、切
換スイツチ７を切り忘れた場合、騒音を発しない
ので使用者にとつては感知できず、そのためスイ
ツチ７の切り忘れが多発する恐れがあり、商品と
して不備な面が多いものであつた。Problems to be Solved by the Invention However, according to the above configuration, if the user forgets to turn off the switch while operating a vacuum cleaner or turning on a flashlight, the discharge of the secondary battery 12 progresses, and as shown in FIG. As shown, the voltage V between the terminals of the battery rapidly decreases after a certain time T 1 when it reaches the final voltage V 1 . Further, if this state continues, the battery 12 becomes over-discharged, which causes many problems, such as significantly deteriorating the charging/discharging cycle life of the battery 12 and leading to failure of the battery 12.
Especially when used as a flashlight, if you forget to turn off the switch 7, the user will not be able to detect it because it will not make any noise, so there is a risk that you will forget to turn off the switch 7 frequently, making it a defective product. It had many aspects.
本考案はこのような問題点を解決するもので、
特に懐中電燈による二次電池の過放電を防止でき
る懐中電燈付充電式掃除機の制御装置を提供する
ことを目的とするものである。 This invention solves these problems,
In particular, it is an object of the present invention to provide a control device for a rechargeable vacuum cleaner equipped with a flashlight that can prevent over-discharge of a secondary battery caused by a flashlight.
問題点を解決するための手段
この問題点を解決するために本考案は、充電制
御装置、直流送風機および二次電池を有する懐中
電燈付充電式掃除機の制御装置であつて、前記二
次電池に前記直流送風機と懐中電燈用電球の２組
の負荷をスイツチで切換自在に接続するととも
に、前記二次電池の電球負荷に対する負荷回路中
に電源ラインの開閉手段と前記二次電池の端子間
電圧を検出する電圧検出部と基準電圧発生部と前
記端子間電圧と基準電圧の電位差を比較する電圧
比較部と前記電圧比較部の出力に応じて前記開閉
手段を開閉制御する制御回路を設け、前記制御回
路は、二次電池の電源ラインと前記制御回路間に
接続されたコンデンサにより電源投入時のみ開閉
手段を閉成させ、その後は制御回路で自己保持さ
せるように構成したものである。Means for Solving the Problems In order to solve this problem, the present invention provides a control device for a rechargeable vacuum cleaner with a flashlight, which includes a charging control device, a DC blower, and a secondary battery, the control device including a charging control device, a DC blower, and a secondary battery. Two sets of loads, the DC blower and a flashlight bulb, are connected to the unit so as to be switchable with a switch, and a power supply line opening/closing means and a voltage between the terminals of the secondary battery are connected to the load circuit for the bulb load of the secondary battery. A voltage detection section for detecting the voltage, a reference voltage generation section, a voltage comparison section for comparing the potential difference between the voltage between the terminals and the reference voltage, and a control circuit for controlling opening and closing of the switching means according to the output of the voltage comparison section, The control circuit is configured such that the opening/closing means is closed only when the power is turned on by a capacitor connected between the power supply line of the secondary battery and the control circuit, and is self-maintained by the control circuit thereafter.
作 用
上記構成により、懐中電燈のスイツチの切り忘
れ状態で、二次電池の端子間電圧が設定値以下に
低下すると、負荷電流が遮断されて電池の放電電
流がカツトされるため、二次電池の過放電を防止
でき、電池の寿命低下を防止できる。Effect With the above configuration, if you forget to turn off the flashlight switch and the voltage between the terminals of the secondary battery drops below the set value, the load current is cut off and the battery discharge current is cut off, so the secondary battery's discharge current is cut off. Over-discharge can be prevented, and battery life can be prevented from decreasing.
実施例
以下本考案の一実施例を図面にもとづいて説明
する。第１図は本考案の一実施例を示す電気回路
図である。第１図において、１５は二次電池で、
切換スイツチ１６、開閉器１７の接点１８および
懐中電燈用電球１９が直列に電池１５の端子間に
接続されて電池１５の電球１９負荷に対する回路
を構成している。また、分割抵抗２０，２１が電
池１５の両端に接続されて電池１５の端子間電圧
を検出する電圧検出部を構成しており、この分割
抵抗２０，２１の分割点ａはトランジスタ２２の
ベースに接続されている。さらにツエナーダイオ
ード２３と抵抗２４が電源ライン間に直列に接続
され、その中点ｂは、前記トランジスタ２２のエ
ミツタ端子に接続されている。また、トランジス
タ２２のコレクターGND間にはコレクタ抵抗２
５が接続され、該抵抗２５とトランジスタ２２の
コレクタとの接続点Ｃは、トランジスタ２６のベ
ースに接続されている。そして前記ツエナーダイ
オード２３で基準電圧発生部を構成するとともに
これと前記電圧検出部の電位差を比較する電圧比
較部を前記トランジスタ２２で構成している。一
方開閉器１７の励磁コイル２７はトランジスタ２
８でトライブできるように該トランジスタ２８の
コレクタ端子に接続されており、トランジスタ２
８のベースはベース抵抗２９を介してバイアス抵
抗３０，３１に接続されている。３２はコンデン
サで、一端がスイツチ１６と開閉器１７との接続
点ｄに接続され、他端が前記トランジスタ２８の
ベースに抵抗２９を介して接続されて電源投入時
のみ前記トランジスタ２８に電流を供給する。３
３はスイツチ１６がOFF時のコンデンサ３２の
放電抵抗である。Embodiment An embodiment of the present invention will be described below based on the drawings. FIG. 1 is an electrical circuit diagram showing an embodiment of the present invention. In Figure 1, 15 is a secondary battery,
The changeover switch 16, the contact 18 of the switch 17, and the flashlight bulb 19 are connected in series between the terminals of the battery 15 to form a circuit for the bulb 19 load of the battery 15. Further, dividing resistors 20 and 21 are connected to both ends of the battery 15 to constitute a voltage detection section that detects the voltage between the terminals of the battery 15, and a dividing point a of the dividing resistors 20 and 21 is connected to the base of the transistor 22. It is connected. Further, a Zener diode 23 and a resistor 24 are connected in series between the power supply lines, and the midpoint b thereof is connected to the emitter terminal of the transistor 22. In addition, a collector resistor 2 is connected between the collector and GND of the transistor 22.
A connection point C between the resistor 25 and the collector of the transistor 22 is connected to the base of the transistor 26. The Zener diode 23 constitutes a reference voltage generation section, and the transistor 22 constitutes a voltage comparison section for comparing the potential difference between this and the voltage detection section. On the other hand, the excitation coil 27 of the switch 17 is connected to the transistor 2
It is connected to the collector terminal of the transistor 28 so that it can be driven by the transistor 28.
The base of 8 is connected to bias resistors 30 and 31 via a base resistor 29. A capacitor 32 has one end connected to the connection point d between the switch 16 and the switch 17, and the other end connected to the base of the transistor 28 via a resistor 29, and supplies current to the transistor 28 only when the power is turned on. do. 3
3 is the discharge resistance of the capacitor 32 when the switch 16 is OFF.
上記構成において、トランジスタ２２は比較器
として動作する。まず、電池１５の電圧が低下し
ていない場合を考えると、分割抵抗２０，２１の
分割点ａの電圧がVB、ツエナーダイオード２３
で設定されたトランジスタ２２のエミツタ電位を
VEとすると、VB＞VE＋VBE（VBE：ベース−エミ
ツタ間電圧）を満足するように分割抵抗２０，２
１の分割費を選べば、トランジスタ２２はOFF
状態となり、トランジスタ２６はOFF状態のま
まである。この条件下では、スイツチ１６が投入
された直後は、コンデンサ３２を介してトランジ
スタ２８はONとなり、一度ONすると開閉器１
７の接点１８が閉じ、抵抗３０，２９を介してベ
ース電流が流れ続けて開閉器１７は閉路のまま保
持されることになる。すなわち、電球１９は通電
状態を維持できることになる。 In the above configuration, transistor 22 operates as a comparator. First, considering the case where the voltage of the battery 15 has not decreased, the voltage at the dividing point a of the dividing resistors 20 and 21 is V B , and the Zener diode 23
The emitter potential of transistor 22 set by
Assuming V E , divide resistors 20 and 2 are set to satisfy V B > V E + V BE (V BE : base-emitter voltage).
If you choose split cost 1, transistor 22 will be OFF.
state, and the transistor 26 remains in the OFF state. Under this condition, immediately after the switch 16 is turned on, the transistor 28 is turned on via the capacitor 32, and once turned on, the switch 1
7 is closed, the base current continues to flow through the resistors 30 and 29, and the switch 17 is kept closed. In other words, the light bulb 19 can remain energized.
次に電池１５の電圧が低下してくると、ツエナ
ーダイオード２３で設定された基準電位VEとVB
の関係がVB＜VE＋VBEの条件下となり、これによ
りトランジスタ２２はON状態となり、トランジ
スタ２６もONする。すなわち、トランジスタ２
８のベース電流が遮断され、該トランジスタ２８
はON状態からOFF状態に変化して開閉器１７を
開路するため、電球１９への電流は完全に遮断さ
れる。また、コンデンサ３２の電荷は、スイツチ
１６が切れるまで放電されないため、開閉器１７
は開路状態を保持されることになる。 Next, when the voltage of the battery 15 decreases, the reference potentials V E and V B set by the Zener diode 23
The relationship is V B <V E +V BE , and as a result, the transistor 22 is turned on, and the transistor 26 is also turned on. That is, transistor 2
The base current of transistor 28 is cut off, and the base current of transistor 28 is cut off.
changes from the ON state to the OFF state and opens the switch 17, so the current to the light bulb 19 is completely cut off. In addition, since the charge in the capacitor 32 is not discharged until the switch 16 is turned off, the switch 17
will be held open.
上記構成の制御装置を使用した場合の二次電池
の放電特性を第２図に示す。第２図において、Ｉ
は電池の放電を停止する設定電位V2を示すもの
である。この図から明らかなように、二次電池の
端子間電圧は設定電位V2以下になると直ちに低
下して放電電流が完全に遮断されることがわか
る。このようにして二次電池の過放電を防止でき
るものである。 FIG. 2 shows the discharge characteristics of the secondary battery when the control device with the above configuration is used. In Figure 2, I
indicates the set potential V 2 at which battery discharging is stopped. As is clear from this figure, when the voltage between the terminals of the secondary battery becomes lower than the set potential V2 , it immediately decreases and the discharge current is completely cut off. In this way, overdischarge of the secondary battery can be prevented.
なお本実施例では、開閉手段に開閉器を用いた
がスイツチング素子を用いても同様の効果を奏
す。 In this embodiment, a switch is used as the opening/closing means, but the same effect can be achieved even if a switching element is used.
考案の効果
以上のように本考案によれば、二次電池の端子
間電圧がある設定値以下になると、自動的に放電
電流を遮断するため、二次電流が過放電状態にあ
ることはなく、二次電池の寿命低下が完全に防止
でき、放電が遮断された後は、制御回路へのドラ
イブ電流も遮断され、スイツチの切り忘れの状態
で長時間放置されたとしても、電池に支障を与え
ることはない。また、放電が遮断された後、使用
者がスイツチの「入」「切」を行なつても、コン
デンサと抵抗を大きな値に選んでコンデンサの放
電時定数を長くすれば、スイツチを不動作にでき
ることも可能で、使用者に充電の予告もでき、そ
の実用価値はきわめて大なるものがある。Effects of the invention As described above, according to the invention, when the voltage between the terminals of the secondary battery falls below a certain set value, the discharge current is automatically cut off, so the secondary current will not be in an over-discharge state. , completely prevents the lifespan of the secondary battery from decreasing, and after the discharge is cut off, the drive current to the control circuit is also cut off, so even if you forget to turn off the switch and leave it for a long time, the battery will not be damaged. Never. In addition, even if the user turns the switch on and off after the discharge is cut off, if the capacitor and resistor are chosen to have large values and the capacitor's discharge time constant is made long, the switch will become inoperable. It is possible to do this, and the user can be given advance notice of charging, and its practical value is extremely great.
第１図は本考案の一実施例を示す電気回路図、
第２図はその二次電池の放電特性図、第３図は充
電式掃除機の斜視図、第４図は従来の内部配線
図、第５図は従来例の放電特性図である。
１１……充電制御装置、１３……直流送風機、
１５……二次電池、１６……スイツチ、１７……
開閉器、１９……電球、２０，２１……分割抵
抗、２２……トランジスタ、２３……ツエナーダ
イオード、２８……トランジスタ、３２……コン
デンサ、３３……放電抵抗。
FIG. 1 is an electrical circuit diagram showing an embodiment of the present invention;
FIG. 2 is a discharge characteristic diagram of the secondary battery, FIG. 3 is a perspective view of a rechargeable vacuum cleaner, FIG. 4 is a conventional internal wiring diagram, and FIG. 5 is a discharge characteristic diagram of a conventional example. 11... Charging control device, 13... DC blower,
15... Secondary battery, 16... Switch, 17...
Switch, 19... Light bulb, 20, 21... Dividing resistor, 22... Transistor, 23... Zener diode, 28... Transistor, 32... Capacitor, 33... Discharging resistor.
Claims (1)
する懐中電燈付充電式掃除機の制御装置であつ
て、前記二次電池に前記直流送風機と懐中電燈用
電球の２組の負荷をスイツチで切換自在に接続す
るとともに、前記二次電池の電球負荷に対する負
荷回路中に電源ラインの開閉手段と前記二次電池
の端子間電圧を検出する電圧検出部と基準電圧発
生部と前記端子間電圧と基準電圧の電位差を比較
する電圧比較部と前記電圧比較部の出力に応じて
前記開閉手段を開閉制御する制御回路を設け、前
記制御回路は、二次電池の電源ラインと前記制御
回路間に接続されたコンデンサにより電源投入時
のみ開閉手段を閉成させ、その後は制御回路で自
己保持させるように構成したことを特徴とする懐
中電燈付充電式掃除機の制御装置。 A control device for a rechargeable vacuum cleaner with a flashlight, which includes a charging control device, a DC blower, and a secondary battery, wherein two sets of loads, the DC blower and a flashlight bulb, can be switched on the secondary battery with a switch. A power line opening/closing means, a voltage detection section for detecting the voltage between the terminals of the secondary battery, a reference voltage generation section, and a reference voltage generating section for detecting the voltage between the terminals and the reference voltage are connected to the load circuit for the light bulb load of the secondary battery. A voltage comparison section for comparing potential differences and a control circuit for controlling opening and closing of the opening/closing means according to the output of the voltage comparison section are provided, and the control circuit includes a capacitor connected between the power supply line of the secondary battery and the control circuit. A control device for a rechargeable vacuum cleaner with a flashlight, characterized in that the opening/closing means is closed only when the power is turned on, and is self-maintained by a control circuit thereafter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986064611U JPH0436786Y2 (en) | 1986-04-28 | 1986-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986064611U JPH0436786Y2 (en) | 1986-04-28 | 1986-04-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62177477U JPS62177477U (en) | 1987-11-11 |
| JPH0436786Y2 true JPH0436786Y2 (en) | 1992-08-31 |
Family
ID=30900921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986064611U Expired JPH0436786Y2 (en) | 1986-04-28 | 1986-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0436786Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10492257B2 (en) * | 2016-05-20 | 2019-11-26 | Panasonic Intellectual Property Management Co., Ltd. | Lighting device and lighting fixture |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4976356A (en) * | 1972-11-27 | 1974-07-23 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58190959U (en) * | 1982-06-10 | 1983-12-19 | 日本電気ホームエレクトロニクス株式会社 | Lighted car cleaner |
-
1986
- 1986-04-28 JP JP1986064611U patent/JPH0436786Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4976356A (en) * | 1972-11-27 | 1974-07-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62177477U (en) | 1987-11-11 |
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