JP3029205U - Additional control device for electric tools - Google Patents
Additional control device for electric toolsInfo
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- JP3029205U JP3029205U JP1995014582U JP1458295U JP3029205U JP 3029205 U JP3029205 U JP 3029205U JP 1995014582 U JP1995014582 U JP 1995014582U JP 1458295 U JP1458295 U JP 1458295U JP 3029205 U JP3029205 U JP 3029205U
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- control device
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Abstract
(57)【要約】 （修正有）
【課題】 付加制御装置の操作上の欠点を取り除き、不
特定的な電動工具の制御を行う手段の提供。
【解決手段】 付加制御装置内サイリスタ１１にバイパ
ス信号回路と、電動機電流検出器を設け、どちらかの信
号電流で電子制御回路の駆動電源を開閉制御する。
(57) [Abstract] (Correction) [PROBLEMS] To provide a means for controlling an unspecified electric power tool by eliminating an operational defect of an additional control device. A bypass signal circuit and a motor current detector are provided in a thyristor 11 in an additional control device, and a drive power supply of an electronic control circuit is controlled to be opened and closed by either signal current.
Description
【０００１】[0001]
本考案は、交流電源を駆動源とし整流子電動機を動力発生源とする、一般には 手で作業操作を行う電動工具において、電源接続コードに付加的に用いる電動工 具の付加制御装置に関するものである。 The present invention relates to an additional control device for an electric power tool additionally used for a power supply connection cord in an electric power tool which uses an AC power source as a drive source and a commutator motor as a power source, and which is generally operated by hand. is there.
【０００２】[0002]
従来この種電動工具にあっては使用上の様々な必要性から、ソフトスタート機 能、回転速度可変機能、定速回転機能、過負荷保護機能、等々を備えた運転を求 められる用途があり、それらの必要性を満たす為、通常電子制御回路を工具に内 蔵した製品、制御部を工具とは分離した付加装置とし両者間の接続を専用特別配 線で接続した製品、或は付加制御装置に専用電源スイッチを設けた製品等が実用 されている。 Conventionally, this kind of electric power tool has applications that require operation such as soft start function, rotation speed variable function, constant speed rotation function, overload protection function, etc. due to various usage needs. In order to meet those needs, a product usually has an electronic control circuit built in the tool, a control unit is an additional device separate from the tool, and the connection between them is a special special wiring, or additional control Products that have a dedicated power switch on the device are in practical use.
【０００３】[0003]
上述したような制御部を備えていない非制御形の在来電動工具は、制御形電動 工具の登場以前から、価格面の有利さも手伝い普及度が高く、これらの工具に付 加的に電子制御機能を追加使用できれば、電子制御形の電動工具としての利用分 野は飛躍的に拡大出来ることは明らかである。然るに、かかる利用法があまり普 及していない理由の一つとして、手で作業操作をする電動工具の場合、作業上の 便利さから、工具発停スイッチが工具保持箇所の至近位置に取り付けられており 、工具の電動機をソフトスタートさせようとする場合、工具起動タイミングとソ フトスタート起動タイミングを一致させる必要性から、上記工具発停スイッチの 投入操作でソフトスタート回路の発停操作を兼務させているのが一般的である。 このため電源と負荷電動機の間に取り付けることとなる付加制御装置内制御回路 の電源開閉は、工具発停スイッチの動作と同時に行えるよう、工具発停スイッチ で付加制御回路部の電源開閉を行う追加配線を両者間に設けた専用工具とするか 、付加制御装置側に別途スイッチを設ける必要があり、何れの場合も電動工具と しての使いやすさと制御装置の適用範囲を著しく損なう因子となっていることが あげられる。 Non-control type conventional electric tools that do not have a control unit as described above have been widely used due to their price advantage, even before the advent of controlled type electric tools, and they are electronically controlled additionally. It is clear that if additional functions can be used, the field of use as an electronically controlled power tool can be dramatically expanded. However, one of the reasons why such usage is not so widespread is that in the case of a power tool that is manually operated, a tool start / stop switch is installed near the tool holding point because of the convenience of work. Therefore, when trying to soft-start the electric motor of the tool, it is necessary to match the tool start timing with the soft start start timing. Is common. Therefore, in order to open / close the power supply of the control circuit in the additional control device to be installed between the power supply and the load motor at the same time as the operation of the tool start / stop switch, the tool start / stop switch opens / closes the power supply of the additional control circuit section. It is necessary to use a dedicated tool with wiring between them, or to install a separate switch on the side of the additional control device.In either case, it is a factor that significantly impairs the ease of use as an electric tool and the application range of the control device. Can be given.
【０００４】 本考案は、上述した付加制御装置の操作上の欠点を取り除き、不特定的な電動 工具の制御を行う手段を提供しようとするもので、制御部内蔵の電動工具との比 較では、内蔵形工具が特定用途に対するより決めの細かい制御性の実現が計れる 一面を有しているのに対し、付加制御装置形は非制御形電動工具への適用、複数 種の電動工具への適用等が可能で、在来工具の有効活用、利用の融通性、運用面 での経済性等の面で優れた効果を期待できるものである。The present invention aims to eliminate the above-mentioned operational drawbacks of the additional control device and to provide a means for controlling an unspecified electric power tool. While the built-in type tool has the aspect that more precise controllability can be achieved for specific applications, the additional control device type is applied to non-controlled power tools and to multiple types of power tools. It is possible to expect excellent effects in terms of effective use of conventional tools, flexibility of use, and economic efficiency in operation.
【０００５】[0005]
電動工具に求められるソフトスタート機能、回転速度可変機能、定速運転機能 、過負荷保護機能等は、通常工具電動機に供給される電圧をサイリスタ等を用い 位相制御することで可変する方法で行っており、所定制御機能を盛りこんだ集積 回路が実用されている。（例：ドイツ テレフンケン社Ｕ２１０Ｂ、Ｕ２０１０ Ｂ英国プレッシー社ＴＤＡ１０８５、米国モトローラ社ＴＤＡ１２８５等々）。 これらの回路は何れも前述した工具発停スイッチの操作で動作を開始するよう構 成されている為、付加制御装置に用いた場合、発停時にかかわる欠点をまぬがれ 得ないものである。従って本考案では、付加制御装置の出力側に接続される電動 工具の発停スイッチの開閉操作で、付加制御装置内部の制御回路の電源開閉が行 えるよう、制御用のサイリスタに並列にバイパス信号回路を設ける。更に制御用 のサイリスタには被制御電動機を電源プラグ等の手段で挿入直列接続し、電動機 の発停制御は電動工具に具備されたスイッチで一義的に行うものとする。更に付 加制御装置内部には、サイリスタにより制御されて流れる電動機電流を検出する 為の電流検出器を設ける。更に付加制御装置内部には、内蔵制御回路部の駆動用 直流電源を開閉する為のスイッチ回路を設け、該スイッチ回路の開閉動作は上述 バイパス信号回路の信号電流又は電流検出器の検出信号で行うよう構成する。 The soft start function, rotation speed variable function, constant speed operation function, overload protection function, etc. required for electric tools are performed by a method in which the voltage supplied to the tool motor is usually controlled by phase control using a thyristor. Therefore, an integrated circuit incorporating a predetermined control function is in practical use. (Example: U210B, U2010B, TDA 1085, British Pressy, TDA 1285, Motorola, USA, etc., Telefunken, Germany). Since all of these circuits are configured to start operation by operating the tool start / stop switch described above, when used in an additional control device, the drawbacks associated with start / stop cannot be avoided. Therefore, in the present invention, a bypass signal is connected in parallel to the control thyristor so that the power supply of the control circuit inside the additional control device can be opened / closed by opening / closing the start / stop switch of the electric tool connected to the output side of the additional control device. Provide a circuit. Further, a controlled motor is inserted into the control thyristor by means of a power plug or the like and connected in series, and the start / stop control of the motor is uniquely controlled by a switch provided in the electric tool. Further, a current detector for detecting the electric motor current flowing under the control of the thyristor is provided inside the additional control device. Further, inside the additional control device, a switch circuit for opening and closing the driving DC power supply of the built-in control circuit part is provided, and the opening / closing operation of the switch circuit is performed by the signal current of the bypass signal circuit or the detection signal of the current detector. Configure as follows.
【０００６】 制御回路駆動直流電源開閉用のスイッチ回路は、直流リレーを用いることも出 来るが、この直流電源は交流を整流して得られる直流を用いる為、整流器として の作動も兼ねホトＳＣＲカプラーを用いるのが好都合である。A switch circuit for opening and closing the control circuit driving DC power source may use a DC relay. However, since this DC power source uses the DC obtained by rectifying the AC, the photo SCR coupler also functions as a rectifier. It is convenient to use.
【０００７】 電動機の電流検出をする電流検出器は、変流器を用いる事も出来るが、微小抵 抗器を用いれば、小型、軽量、廉価に構成できる。検出された電流信号はコンパ レータを用い、電流値が所定レベル以上に達した際、制御回路駆動用直流電源を 開閉するスイッチ回路に閉路信号を出力する。The current detector for detecting the current of the electric motor may be a current transformer, but if a minute resistor is used, it can be made compact, lightweight and inexpensive. A comparator is used for the detected current signal, and when the current value exceeds a predetermined level, a closing signal is output to the switch circuit that opens and closes the DC power supply for driving the control circuit.
【０００８】 上記電流検出信号は、適切な信号処理を行って定速運転用帰還信号、過負荷検 出用としても利用できる。The current detection signal can also be used as a feedback signal for constant speed operation and for overload detection by performing appropriate signal processing.
【０００９】[0009]
本考案実施例を図面を参照して説明する。 図１は、本実施例における電動工具の付加制御装置に内蔵される制御部電子回 路のブロック図である。以下同図をもとに順次説明を行う。 電源プラグ４は電動工具を駆動する交流電源に接続し、電動工具駆動電力の供給 と、電子制御回路駆動用直流電源を交流を半波整流する方法で得る。 Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a control unit electronic circuit incorporated in an additional control device for an electric tool according to this embodiment. The following is a sequential description based on FIG. The power plug 4 is connected to an AC power source for driving an electric power tool, and electric power for driving the electric power tool and a DC power source for driving the electronic control circuit are obtained by a method of half-wave rectifying AC.
【００１０】 電源プラグ４の両電極間には、スイッチ回路７、限流抵抗８及びツェナーダイ オード９と平滑コンデンサー８の並列接続回路を直列に接続した回路を接続する 。スイッチ回路７にはホトＳＣＲカプラーを使用し、このＳＣＲ部を上記直列回 路のスイッチ回路要素として接続し、通電の向はツェナーダイオード９のカソー ド側からアノードへ、限流抵抗８、スイッチ回路７内ＳＣＲのアノード、同カソ ードの順に流れる向とする。スイッチ回路７のＬＥＤに電流が流れ、ホトＳＣＲ がトリガーされると、該ＳＣＲはダイオードとしての動作をする結果、上記直列 回路は交流電源の半波整流回路を構成する為、ツェナーダイオード９のアノード とカソード間からツエナー電圧の直流出力を得る事ができる。この直流出力はス イッチ回路７内ＬＥＤの電流で開閉制御される。A switch circuit 7, a current limiting resistor 8, a Zener diode 9 and a parallel connection circuit of a smoothing capacitor 8 are connected in series between both electrodes of the power plug 4. A photo SCR coupler is used for the switch circuit 7, and this SCR portion is connected as a switch circuit element of the series circuit. The direction of energization is from the cathode side of the Zener diode 9 to the anode, the current limiting resistor 8 and the switch circuit. The SCR anode in 7 and the cathode should flow in this order. When a current flows through the LED of the switch circuit 7 and the photo SCR is triggered, the SCR operates as a diode. As a result, the series circuit constitutes a half-wave rectification circuit of an AC power source, and thus the anode of the Zener diode 9 is formed. A DC output of Zener voltage can be obtained between the cathode and the cathode. This DC output is controlled to open / close by the current of the LED in the switch circuit 7.
【００１１】 更に電源プラグ４の両電極間には、出力コンセント２、サイリスタ１１、電流 検出器１２を直列接続した回路を接続する。本実施例ではサイリスタ１１にトラ イアックを用い、電流検出器１２には微小抵抗器を用いた回路を示した。サイリ スタ１１のＴ２端子側に出力コンセント２を、Ｔ１端子側に電流検出器１２を接 続し、電流検出器１２の抵抗器他端はツェナーダイオード９のカソード側電極に 接続する。出力コンセント２には電動工具の電源プラグ１３を挿入使用する。こ れにより電動工具の電動機１４、工具発停スイッチ１５、サイリスタ１１、電流 検出器１２の直列回路が交流電源に接続された電動機制御回路が構成される。Further, a circuit in which an output outlet 2, a thyristor 11 and a current detector 12 are connected in series is connected between both electrodes of the power plug 4. In this embodiment, the thyristor 11 is a triac and the current detector 12 is a micro resistor. The output outlet 2 is connected to the T2 terminal side of the thyristor 11 and the current detector 12 is connected to the T1 terminal side, and the other end of the resistor of the current detector 12 is connected to the cathode side electrode of the Zener diode 9. A power plug 13 of an electric tool is inserted and used in the output outlet 2. This constitutes a motor control circuit in which the series circuit of the motor 14 of the electric tool, the tool start / stop switch 15, the thyristor 11, and the current detector 12 is connected to the AC power supply.
【００１２】 電動機１４に流れる電流は、電流検出器１２として用いられている抵抗器に、 該電流に比例した電圧降下を発生せしめ、この電圧を整流器１６により整流、該 電流に比例した直流信号電圧を得る。The current flowing through the electric motor 14 causes a resistor used as the current detector 12 to generate a voltage drop proportional to the current, and this voltage is rectified by a rectifier 16 to generate a DC signal voltage proportional to the current. To get
【００１３】 ここで得られる直流信号電圧は、コンパレータ１７の負相入力に供給し、分圧 抵抗１８、１９により決まるスレッシュホールド電位をコンパレータ１７の正相 入力に与えることにより、この電位を境として、直流信号電圧の高低に応じコン パレータ１７の出力を低又は高レベルに変化せしめる。The DC signal voltage obtained here is supplied to the negative phase input of the comparator 17, and the threshold potential determined by the voltage dividing resistors 18 and 19 is applied to the positive phase input of the comparator 17, so that this potential is used as a boundary. The output of the comparator 17 is changed to low or high level according to the level of the DC signal voltage.
【００１４】 電動機１４の電流に比例した直流信号電圧は、更に位相制御回路２０の入力信 号の一つとして用いる事が出来、位相制御回路２０の基本動作は、ポテンシオメ ータ２１により与えられる直流信号電圧に応じた位相角の通電パルカを出力する 作動を行うもので、同パルスは限流抵抗２２を介しサイリスタ１１のゲートに供 給される。コンパレータ１７、位相制御回路２０等の電子制御回路駆動用直流電 源はツェナーダイオード９のアノードとカソード間で得られる直流を用いる為、 スイッチ回路７のＬＥＤ部に流れる電流に応じ開閉制御される。The DC signal voltage proportional to the current of the electric motor 14 can be further used as one of the input signals of the phase control circuit 20, and the basic operation of the phase control circuit 20 is a DC voltage given by the potentiometer 21. The pulse is supplied to the gate of the thyristor 11 via the current limiting resistor 22 in order to output an energization pulser having a phase angle corresponding to the signal voltage. Since the DC power source for driving the electronic control circuit such as the comparator 17 and the phase control circuit 20 uses the DC voltage obtained between the anode and the cathode of the Zener diode 9, the switching control is performed according to the current flowing through the LED portion of the switch circuit 7.
【００１５】 サイリスタ１１のＴ２端子と出力コンセント２の電極との接続点から限流抵抗 ２３、ダイオード２４、スイッチ回路７のＬＥＤ部の直列接続回路をツェナーダ イオード９のカソード側電極に接続する事により、トライアック１１のバイパス 信号回路を形成し、各回路素子の通電の向は、ツェナーダイオード９のカソード 側からサイリスタ１１のＴ２端子に向かって流れる向とする。By connecting a series connection circuit of the current limiting resistance 23, the diode 24, and the LED portion of the switch circuit 7 to the cathode side electrode of the Zener diode 9 from the connection point between the T2 terminal of the thyristor 11 and the electrode of the output outlet 2. The bypass signal circuit of the triac 11 is formed, and the direction of energization of each circuit element is set to flow from the cathode side of the Zener diode 9 toward the T2 terminal of the thyristor 11.
【００１６】 コンパレータ１７の出力は、限流抵抗２６、ダイオード２５、スイッチ回路７ のＬＥＤ部等を経てツェナーダイオード９のカソード側電極に接続、各素子の通 電の向はコンパレータ１７の出力に流れこむ向とする。The output of the comparator 17 is connected to the cathode side electrode of the Zener diode 9 via the current limiting resistance 26, the diode 25, the LED section of the switch circuit 7, etc., and the direction of the current flow of each element flows to the output of the comparator 17. Let's go down.
【００１７】 上記構成において、電動工具の電源プラグ１３を出力コンセント２に挿入し、 工具発停スイッチ１５が開の時は電動機電流が流れない為、電流検出器出力信号 は零でコンパレータ１７の出力は高レベル、バイパス信号回路電流共に零で、ス イッチ回路７のＬＥＤに通電はなく、スイッチ回路７は開となる為、電子制御回 路部への電源供給が遮断され、回路動作は停止する。In the above configuration, when the power plug 13 of the electric tool is inserted into the output outlet 2 and the electric motor current does not flow when the tool start / stop switch 15 is open, the current detector output signal is zero and the output of the comparator 17 is output. Is high level and the bypass signal circuit current is zero, the LED of the switch circuit 7 is not energized and the switch circuit 7 is opened, so the power supply to the electronic control circuit is cut off and the circuit operation is stopped. .
【００１８】 工具発停スイッチ１５を閉とすると、当初サイリスタ１１が非トリガー状態に ある為、交流電源の電圧でサイリスタ１１のバイパス回路によりスイッチ回路７ のＬＥＤ部に整流電流が流れスイッチ回路７を閉とする。その結果位相制御回路 、コンパレータ１７等の電子制御回路が作動状態となり、所定のソフトスタート 、位相制御特性に応じ電動機１４が回転始動し、サイリスタ１１の通電角増加に 応じ電動機電流も増加する。サイリスタ１１の通電角の増加によりバイパス回路 電流は減少するが、コンパレータ１７のスレッシュホールド電位を適切に決める 事により、以後のスイッチ回路７の閉路保持はコンパレータ１７の出力で行なわ れる結果、連続運転動作が保証される。次に電動工具の発停スイッチ１５を開と すると、電動機１４の電流は零となり、上述バイパス回路信号電流、コンパレー タ１７の出力電流も零となり、電子制御回路への直流駆動電源が遮断、制御装置 は完全停止される。When the tool start / stop switch 15 is closed, since the thyristor 11 is initially in the non-trigger state, the bypass circuit of the thyristor 11 causes a rectified current to flow in the LED portion of the switch circuit 7 by the voltage of the AC power supply, and the switch circuit 7 is turned on. Close it. As a result, the electronic control circuits such as the phase control circuit and the comparator 17 are activated, the electric motor 14 starts to rotate according to the predetermined soft start and the phase control characteristic, and the electric motor current also increases according to the increase in the conduction angle of the thyristor 11. Although the bypass circuit current decreases due to the increase in the conduction angle of the thyristor 11, by appropriately determining the threshold potential of the comparator 17, the subsequent closing of the switch circuit 7 is performed by the output of the comparator 17, resulting in continuous operation. Is guaranteed. Next, when the start / stop switch 15 of the electric tool is opened, the electric current of the electric motor 14 becomes zero, the bypass circuit signal current and the output current of the comparator 17 also become zero, and the DC drive power to the electronic control circuit is cut off and controlled. The device is completely shut down.
【００１９】 図２は本考案実施例の電動工具の付加制御装置外観図である。 ケース１は内部に電子制御回路部を収納する容器で、側面に被制御用電動工具の 電源プラグ１３を挿入する為の出力コンセント２を有する。更にケース１には付 加制御装置を交流電源に接続する電源コード３と電源プラグ４を装着する。ケー ス１底面にはサイリスタ１１の放熱を計る為のヒートシンク５、及び電動工具の 回転速度設定ダイヤル６を、制御回路部ポテンシオメータ２１の軸にリンクして 取り付けた構造を成している。 以上により、本考案実施例によれば、非制御形の在来電動工具に対し付加的に 用いる方法で、電動工具本来の使い勝手を全く損なう事なく、電子制御形の諸機 能を付与した用法が出来るものである。FIG. 2 is an external view of an additional control device for an electric power tool according to an embodiment of the present invention. The case 1 is a container for accommodating an electronic control circuit unit inside, and has an output outlet 2 for inserting a power plug 13 of a controlled power tool on a side surface. Further, the case 1 is equipped with a power cord 3 and a power plug 4 for connecting the additional control device to an AC power source. On the bottom surface of the case 1, a heat sink 5 for measuring the heat radiation of the thyristor 11 and a rotation speed setting dial 6 of the electric tool are attached to the shaft of the control circuit potentiometer 21 in a linked manner. As described above, according to the embodiment of the present invention, a method of additionally using an uncontrolled conventional electric power tool, and using various electronically controlled functions without impairing the original usability of the electric power tool. Can be done.
【００２０】[0020]
本考案は上述の通り構成されるので、次に記載する効果を奏する。 Since the present invention is configured as described above, it has the following effects.
【００２１】 図１に示すごとく、在来電動工具の電源配線経路の一部に挿入接続し、工具発 停スイッチ１５の操作が付加制御装置なしの場合と全く同様に行える為、電動工 具本来の使い勝手、使いやすさを損なう事なく所望の制御機能を追加する事が出 来る。As shown in FIG. 1, since it is inserted and connected to a part of the power supply wiring path of a conventional electric power tool, and the operation of the tool start / stop switch 15 can be performed in the same manner as in the case without an additional control device, the electric power tool is originally used. It will be possible to add the desired control functions without compromising the usability and usability of the.
【００２２】 電動工具の各種制御機能が必要とされる用途において、在来工具に付加的に使 用する方法で目的達成が行える為、新たに所要機能を具備した工具購入の必要性 が省け、工具ユーザーにとって経済的メリットをもたらすことが可能である。In applications where various control functions of electric tools are required, the purpose can be achieved by a method additionally used for conventional tools, thus eliminating the need to purchase tools newly equipped with the required functions. It can bring economic benefits to tool users.
【００２３】 付加的用法の為、適用工具の種類が特定用途工具に限定されず、複数種の工具 に適用出来る点、制御機能適用上の融通性が増す用法とできる。Since it is an additional usage, the type of applied tool is not limited to a tool for a specific purpose, and it can be applied to a plurality of kinds of tools, and the usage in which the flexibility in applying a control function is increased.
【００２４】 制御回路の主要部が電子回路で構成出来る為、小型、軽量化ができ、使用上障 害となる要素を排除した構造とできる。Since the main part of the control circuit can be composed of an electronic circuit, the size and weight of the control circuit can be reduced, and a structure that eliminates the elements that hinder the use can be obtained.
２ 出力コンセント ４、１３ 電源プラグ ７ スイッチ回路 １１ サイリスタ １２ 電流検出器 １７ コンパレータ ２０ 位相制御回路 ２４、２５ ダイオード 2 Output outlets 4, 13 Power plug 7 Switch circuit 11 Thyristor 12 Current detector 17 Comparator 20 Phase control circuit 24, 25 Diode
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【手続補正書】[Procedure amendment]
【提出日】平成８年４月１８日[Submission date] April 18, 1996
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図面の簡単な説明[Name of item to be corrected] Brief description of the drawing
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図面の簡単な説明】[Brief description of drawings]
【図１】電動工具の付加制御装置に内蔵される制御部電
子回路のブロック図FIG. 1 is a block diagram of a control unit electronic circuit incorporated in an additional control device for an electric tool.
【図２】電動工具の付加制御装置外観図[Fig. 2] External view of an additional control device for an electric tool
【符号の説明】 ２ 出力コンセント ４、１３
電源プラグ ７ スイッチ回路 １１
サーイリスタ １２ 電流検出器 １７
コンパレータ ２０ 位相制御回路 ２４、２５
ダイオード[Explanation of symbols] 2 output outlets 4, 13
Power plug 7 Switch circuit 11
Thyristor 12 Current detector 17
Comparator 20 Phase control circuit 24, 25
diode
Claims (1)
イッチ回路７、限流抵抗８及びツェナーダイオード９と
平滑コンデンサー１０の並列接続部で構成される直流電
源部を直列接続した回路を接続し、該直流電源部から位
相制御回路２０、コンパレータ１７等の電子制御回路部
への駆動電源の供給を行う回路とし、更に出力コンセン
ト２、サイリスタ１１、電流検出器１３の直列接続回路
を該交流電源両電極に接続し、出力コンセント２に電動
工具の電源プラグ１３を挿入接続する構成において、限
流抵抗２３、ダイオード２４、スイッチ回路７のＬＥＤ
部等の直列回路から成るサイリスタ１１のバイパス信号
回路の信号電流、及び限流抵抗２６とダイオード２５を
介したコンパレータ７の出力信号でスイッチ回路７を開
閉制御することにより成る電動工具の付加制御装置。1. A circuit in which a direct current power source unit composed of a switch circuit 7, a current limiting resistor 8, a Zener diode 9 and a smoothing capacitor 10 connected in parallel is connected in series to an alternating current power source through a power outlet 4. A circuit for supplying drive power from the DC power supply unit to the electronic control circuit unit such as the phase control circuit 20 and the comparator 17, and further, a series connection circuit of the output outlet 2, the thyristor 11 and the current detector 13 is connected to the AC power supply unit. In the configuration in which the power plug 13 of the electric tool is inserted and connected to the output socket 2 and the output outlet 2, the current limiting resistance 23, the diode 24, and the LED of the switch circuit 7
Additional control device for an electric power tool, which is configured to control the opening and closing of the switch circuit 7 by the signal current of the bypass signal circuit of the thyristor 11 including a series circuit of the parts and the output signal of the comparator 7 via the current limiting resistor 26 and the diode 25. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1995014582U JP3029205U (en) | 1995-12-18 | 1995-12-18 | Additional control device for electric tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1995014582U JP3029205U (en) | 1995-12-18 | 1995-12-18 | Additional control device for electric tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3029205U true JP3029205U (en) | 1996-09-27 |
Family
ID=43164249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1995014582U Expired - Lifetime JP3029205U (en) | 1995-12-18 | 1995-12-18 | Additional control device for electric tools |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3029205U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009303322A (en) * | 2008-06-11 | 2009-12-24 | Ebara Shinwa Ltd | Three-phase motor with built-in controller |
-
1995
- 1995-12-18 JP JP1995014582U patent/JP3029205U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009303322A (en) * | 2008-06-11 | 2009-12-24 | Ebara Shinwa Ltd | Three-phase motor with built-in controller |
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