JP3372094B2 - Control circuit of single-phase series-wound commutator motor - Google Patents
Control circuit of single-phase series-wound commutator motorInfo
- Publication number
- JP3372094B2 JP3372094B2 JP33708793A JP33708793A JP3372094B2 JP 3372094 B2 JP3372094 B2 JP 3372094B2 JP 33708793 A JP33708793 A JP 33708793A JP 33708793 A JP33708793 A JP 33708793A JP 3372094 B2 JP3372094 B2 JP 3372094B2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- brake
- control circuit
- phase series
- commutator motor
- 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 - Fee Related
Links
Landscapes
- Control Of Ac Motors In General (AREA)
- Stopping Of Electric Motors (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電動工具等に用いられ
る単相直巻整流子電動機の制御回路に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control circuit for a single-phase series-wound commutator motor used in electric tools and the like.
【０００２】[0002]
【従来の技術】従来、丸ノコ、あるいはル−タなどの電
動工具に用いられる単相直巻整流子電動機を制御する制
御回路として図３に示すようなものがある。図３に示す
ようにこの制御回路は、主巻線ＭＷとブレ−キ巻線ＢＷ
の片方の線端が接続されていて、２極双投スイッチＤＳ
Ｗの操作で商用電源Ｐから電力の供給を受け、電動機Ｍ
を回転させたり、ダイナミックブレ−キをかけたりする
ように構成されている。図３の回路では２極双投スイッ
チＤＳＷの可動接点を実線のように倒せば電動機Ｍが回
転される一方、同接点を２点鎖線のように倒せばダイナ
ミックブレ−キがかかる。この回路においては主巻線Ｍ
Ｗをブレ−キ回路に使用することができるため、ブレ−
キ巻線ＢＷの巻き数が少なくてもブレ−キ性能を十分確
保することができるという利点がある反面、２極双投ス
イッチＤＳＷのコストが高いという欠点がある。2. Description of the Related Art Conventionally, there is a control circuit shown in FIG. 3 as a control circuit for controlling a single-phase series-wound commutator motor used for an electric tool such as a circular saw or a router. As shown in FIG. 3, this control circuit includes a main winding MW and a brake winding BW.
One line end of is connected, and double pole double throw switch DS
The electric power is supplied from the commercial power source P by the operation of W, and the electric motor M
It is configured to rotate and to apply a dynamic brake. In the circuit of FIG. 3, when the movable contact of the double-pole double-throw switch DSW is tilted as shown by the solid line, the electric motor M is rotated, while when the contact is tilted as shown by the chain double-dashed line, a dynamic brake is applied. In this circuit, the main winding M
Since W can be used in the break circuit,
Although the brake performance can be sufficiently ensured even if the number of turns of the winding BW is small, there is a drawback that the cost of the double pole double throw switch DSW is high.
【０００３】 そのため、コストの高い２極双投スイッ
チＤＳＷに代えて、安価な単極双投スイッチＳＳＷを用
いた図４に示すような制御回路がある。この制御回路に
おいて、単極双投スイッチＳＳＷの可動接点を実線のよ
うに倒せば商用電源Ｐから電力の供給を受け、電動機Ｍ
が回転される一方、同接点を２点鎖線のように倒せばダ
イナミックブレーキがかかる。しかし、この制御回路で
は主巻線ＭＷをブレーキ回路に使用することができない
ため、ブレーキ性能を確保するためにはブレーキ巻線Ｂ
Ｗの巻き数を多くする必要がある。尚、図示はしていな
いが、サイリスタを用いて位相制御し、電動機Ｍを駆動
制御することもできる。Therefore, there is a control circuit as shown in FIG. 4 which uses an inexpensive single-pole double-throw switch SSW instead of the high-cost double-pole double-throw switch DSW . In this control circuit, if the movable contact of the single-pole double-throw switch SSW is turned over as shown by the solid line, electric power is supplied from the commercial power source P and the electric motor M
While is rotated, the dynamic brake is applied if the contact is tilted as shown by the chain double-dashed line. However, in this control circuit, since the main winding MW cannot be used for the brake circuit, the brake winding B is required to ensure the braking performance.
It is necessary to increase the number of W turns. Although not shown, the thyristor may be used for phase control to drive and control the electric motor M.
【０００４】[0004]
【発明が解決しようとする課題】上記の図４に示すよう
な単相直巻整流子電動機の従来の制御回路では、安価な
単極双投スイッチＳＳＷを用いる一方、ブレ−キ性能を
確保するためにブレ−キ巻線ＢＷの巻き数を多くする必
要がある。しかしながら、電動機Ｍの整流に伴う電圧変
動、または図示していないがサイリスタを用いて電動機
Ｍを駆動する場合のサイリスタのタ−ンオン時の急峻な
電圧変動により高周波の電圧が発生し、主巻線ＭＷとブ
レ−キ巻線ＢＷの巻線比に応じて、主巻線ＭＷとブレ−
キ巻線ＢＷの間に高電圧が発生するため、主巻線ＭＷと
ブレ−キ巻線ＢＷが短絡しない程度の発生電圧に抑制す
る必要がある。そのため、ブレ−キ巻線ＢＷの巻き数が
少なくても良好なブレ−キ性能が得られるように単相直
巻整流子電動機の巻線仕様を選定しなければならないた
め、ブラシ寿命の低下や単相直巻整流子電動機の回転数
の低下によるパワ−ダウンといった問題がある。In the conventional control circuit of the single-phase series-wound commutator motor as shown in FIG. 4, the inexpensive single-pole double-throw switch SSW is used while ensuring the brake performance. Therefore, it is necessary to increase the number of turns of the break winding BW. However, a high-frequency voltage is generated due to a voltage change due to rectification of the electric motor M, or a steep voltage change at the time of turning on the thyristor (not shown) when the electric motor M is driven by using a thyristor, and a high frequency voltage is generated. Depending on the winding ratio of MW and brake winding BW, the main winding MW and brake
Since a high voltage is generated between the winding winding BW, it is necessary to suppress the generated voltage to such an extent that the main winding MW and the brake winding BW are not short-circuited. For this reason, the winding specifications of the single-phase series-wound commutator motor must be selected so that good braking performance can be obtained even if the number of turns of the brake winding BW is small. There is a problem of power down due to the reduction of the rotation speed of the single-phase series-wound commutator motor.
【０００５】そこで本発明では、単極双投スイッチＳＳ
Ｗを用いた制御回路において、主巻線ＭＷとブレ−キ巻
線ＢＷ間の発生電圧を抑制し、主巻線ＭＷとブレ−キ巻
線ＢＷ間の短絡を防止することにより、単相直巻整流子
電動機の巻線仕様とは関係なくブレ−キ性能を十分確保
することが可能な巻き数の多いブレ−キ巻線ＢＷを用い
ることができるようにすることを解決すべき技術的課題
とするものである。Therefore, in the present invention, the single-pole double-throw switch SS
In the control circuit using W, the voltage generated between the main winding MW and the brake winding BW is suppressed and the short circuit between the main winding MW and the brake winding BW is prevented, so that the single phase direct A technical problem to be solved to be able to use a brake winding BW having a large number of turns capable of sufficiently ensuring the brake performance regardless of the winding specifications of the wound commutator motor. It is what
【０００６】[0006]
【課題を解決するための手段】上記課題解決のための第
１の技術的手段は、ステ−タの同一スロットに主巻線と
ブレ−キ巻線とが配設され、前記主巻線とブレ−キ巻線
の片方の線端が接続されていて単極双投スイッチでブレ
−キを動作させる単相直巻整流子電動機の制御回路にお
いて、前記主巻線とブレ−キ巻線間にバリスタを接続す
ることである。The first technical means for solving the above-mentioned problems is to dispose the main winding and the brake winding in the same slot of the stator, In a control circuit of a single-phase series-winding commutator motor, in which one end of the brake winding is connected to operate the brake with a single-pole double-throw switch, between the main winding and the brake winding. Is to connect a varistor.
【０００７】また、第２の技術的手段は、ステ−タの同
一スロットに主巻線とブレ−キ巻線とが配設され、前記
主巻線とブレ−キ巻線の片方の線端が接続されていて単
極双投スイッチでブレ−キを動作させる単相直巻整流子
電動機の制御回路において、前記主巻線とブレ−キ巻線
間にコンデンサを接続することである。The second technical means is that the main winding and the brake winding are arranged in the same slot of the stator, and one end of the main winding and the brake winding is connected. In the control circuit of the single-phase series-winding commutator motor, in which the brake is operated by the single-pole double-throw switch, a capacitor is connected between the main winding and the brake winding.
【０００８】更に、第３の技術的手段は、ステ−タの同
一スロットに主巻線とブレ−キ巻線とが配設され、前記
主巻線とブレ−キ巻線の片方の線端が接続されていて単
極双投スイッチでブレ−キを動作させる単相直巻整流子
電動機の制御回路において、前記ブレ−キ巻線の両端に
バリスタを接続することである。Further, in a third technical means, a main winding and a brake winding are arranged in the same slot of the stator, and one wire end of the main winding and the brake winding is disposed. In the control circuit of the single-phase series-wound commutator motor in which the brake is operated by the single-pole double-throw switch, varistor is connected to both ends of the brake winding.
【０００９】また、第４の技術的手段は、ステ−タの同
一スロットに主巻線とブレ−キ巻線とが配設され、前記
主巻線とブレ−キ巻線の片方の線端が接続されていて単
極双投スイッチでブレ−キを動作させる単相直巻整流子
電動機の制御回路において、前記ブレ−キ巻線の両端に
コンデンサを接続することである。A fourth technical means is that the main winding and the brake winding are arranged in the same slot of the stator, and one end of the main winding and the brake winding is connected. In the control circuit of the single-phase series-winding commutator motor, in which a brake is operated by a single-pole double-throw switch, capacitors are connected to both ends of the brake winding.
【００１０】[0010]
【作用】上記第１の技術的手段によれば、主巻線とブレ
−キ巻線間に接続されたバリスタが、主巻線とブレ−キ
巻線間に発生した高電圧を吸収し、低下させる。According to the first technical means, the varistor connected between the main winding and the brake winding absorbs the high voltage generated between the main winding and the brake winding, Lower.
【００１１】上記第２の技術的手段によれば、主巻線と
ブレ−キ巻線間に接続されたコンデンサが、主巻線とブ
レ−キ巻線間に発生した高電圧を充電し、低下させる。According to the second technical means, the capacitor connected between the main winding and the brake winding charges the high voltage generated between the main winding and the brake winding, Lower.
【００１２】上記第３の技術的手段によれば、ブレ−キ
巻線の両端に接続されたバリスタがブレ−キ巻線に発生
した高電圧を吸収し、低下させる。According to the third technical means, the varistor connected to both ends of the break winding absorbs and reduces the high voltage generated in the break winding.
【００１３】上記第４の技術的手段によれば、ブレ−キ
巻線の両端に接続されたコンデンサがブレ−キ巻線のに
発生した高電圧を充電し、低下させる。According to the fourth technical means, the capacitors connected to both ends of the break winding charge the high voltage generated in the break winding and reduce it.
【００１４】[0014]
【実施例】次に、本発明の実施例を図面を参照しながら
説明する。尚、前記従来の技術の欄で説明した電動機
Ｍ、ステ−タの同一スロットに配設された主巻線ＭＷ、
ブレ−キ巻線ＢＷ、及び単極双投スイッチＳＳＷは、本
実施例でも共通したものであるため、同じ符号を用いて
説明する。Embodiments of the present invention will now be described with reference to the drawings. Incidentally, the electric motor M described in the section of the prior art, the main winding MW arranged in the same slot of the stator,
Since the break winding BW and the single-pole double-throw switch SSW are common to this embodiment, they will be described using the same reference numerals.
【００１５】図１は、電動工具等に用いられる単相直巻
整流子電動機の制御回路であって、商用電源Ｐからの入
力電圧は、単極双投スイッチＳＳＷの一方の接点ＣＴ１
と、主巻線ＭＷの一方の端末に印加される。尚、図示は
していないが、商用電源Ｐと主巻線ＭＷの間にサイリス
タ及びその点弧回路を設けてサイリスタを位相制御し、
電動機Ｍを駆動制御する場合もある。FIG. 1 shows a control circuit of a single-phase series-wound commutator motor used for an electric power tool or the like. The input voltage from a commercial power source P is one contact CT1 of a single-pole double-throw switch SSW.
And is applied to one end of the main winding MW. Although not shown, a thyristor and its ignition circuit are provided between the commercial power source P and the main winding MW to control the phase of the thyristor.
The electric motor M may be drive-controlled.
【００１６】単極双投スイッチＳＳＷの共通接点ＣＴ
は、電動機Ｍの整流子と接触するブラシｂ１と接続さ
れ、他方のブラシｂ２は主巻線ＭＷの端末に接続されて
いる。一方、主巻線ＭＷの端末とブレ−キ巻線ＢＷの端
末が接続され、ブレ−キ巻線ＢＷの他方の端末は単極双
投スイッチＳＳＷの接点ＣＴ２と接続されている。Common contact CT of single-pole double-throw switch SSW
Is connected to the brush b1 that contacts the commutator of the electric motor M, and the other brush b2 is connected to the end of the main winding MW. On the other hand, the end of the main winding MW and the end of the break winding BW are connected, and the other end of the break winding BW is connected to the contact CT2 of the single-pole double-throw switch SSW.
【００１７】そして、主巻線ＭＷの端末とブレ−キ巻線
ＢＷの端末間にはバリスタＢ、あるいはコンデンサＣが
接続されている。このバリスタＢ、あるいはコンデンサ
Ｃは主巻線ＭＷとブレ−キ巻線ＢＷ間に発生する高電圧
を低下させ、主巻線ＭＷとブレ−キ巻線ＢＷ間の短絡を
防止するために接続されたものである。A varistor B or a capacitor C is connected between the end of the main winding MW and the end of the break winding BW. The varistor B or the capacitor C is connected to reduce the high voltage generated between the main winding MW and the brake winding BW and prevent a short circuit between the main winding MW and the brake winding BW. It is a thing.
【００１８】図２は、上記バリスタＢ、あるいはコンデ
ンサＣをブレ−キ巻線ＢＷの両端に接続した単相直巻整
流子電動機の制御回路である。この制御回路は、ブレ−
キ巻線ＢＷに発生する高電圧をバリスタＢ、あるいはコ
ンデンサＣが吸収し、低下させるように構成されてお
り、その他の構成は図１と同様である。FIG. 2 shows a control circuit of a single-phase series-wound commutator motor in which the varistor B or the capacitor C is connected to both ends of the brake winding BW. This control circuit is
The high voltage generated in the winding BW is configured to be absorbed and reduced by the varistor B or the capacitor C, and other configurations are the same as those in FIG.
【００１９】次に、図１、及び図２に示した単相直巻整
流子電動機の制御回路の作用を説明する。図１、図２の
制御回路において、単極双投スイッチＳＳＷが実線のよ
うに、即ち共通接点ＣＴと接点ＣＴ１とが導通するよう
に操作されると、電動機Ｍが回転され、電動工具が駆動
される。次に、単極双投スイッチＳＳＷが２点鎖線のよ
うに、即ち共通接点ＣＴと接点ＣＴ２とが導通するよう
に操作されると、電動機Ｍに対する電源の供給が遮断さ
れるとともに、ブレ−キ巻線ＢＷ、ブラシｂ１，ｂ２、
整流子、及びア−マチュアで閉回路が構成され、ブレ−
キ電流が流れてダイナミックブレ−キがかかる。Next, the operation of the control circuit of the single-phase series-wound commutator motor shown in FIGS. 1 and 2 will be described. In the control circuits of FIGS. 1 and 2, when the single-pole double-throw switch SSW is operated as shown by a solid line, that is, the common contact CT and the contact CT1 are electrically connected, the electric motor M is rotated and the electric tool is driven. To be done. Next, when the single-pole double-throw switch SSW is operated as shown by the chain double-dashed line, that is, the common contact CT and the contact CT2 are electrically connected, the supply of power to the electric motor M is cut off and the brake is applied. Winding BW, brushes b1, b2,
The commutator and armature form a closed circuit,
A current flows and a dynamic brake is applied.
【００２０】図１の制御回路では、主巻線ＭＷの端末と
ブレ−キ巻線ＢＷの端末間にバリスタＢ、あるいはコン
デンサＣが接続されているため、電動機Ｍの整流に伴う
電圧変動、またはサイリスタのタ−ンオン時の急峻な電
圧変動に起因する主巻線ＭＷとブレ−キ巻線ＢＷの間の
高電圧が吸収され、その電圧が低下する。In the control circuit of FIG. 1, since the varistor B or the capacitor C is connected between the end of the main winding MW and the end of the brake winding BW, the voltage fluctuation due to the rectification of the electric motor M, or A high voltage between the main winding MW and the brake winding BW, which is caused by a steep voltage fluctuation when the thyristor is turned on, is absorbed and the voltage is lowered.
【００２１】また、図２の制御回路では、ブレ−キ巻線
ＢＷの両端にバリスタＢ、あるいはコンデンサＣが接続
されているため、電動機Ｍの整流に伴う電圧変動、また
はサイリスタのタ−ンオン時の急峻な電圧変動に起因す
るブレ−キ巻線ＢＷの高電圧が吸収され、その電圧が低
下する。Further, in the control circuit of FIG. 2, since the varistor B or the capacitor C is connected to both ends of the break winding BW, the voltage fluctuation due to the rectification of the electric motor M or the turn-on of the thyristor is turned on. The high voltage of the brake winding BW due to the sharp voltage fluctuation of the voltage is absorbed, and the voltage is lowered.
【００２２】従って、図１、図２の制御回路では、高電
圧の発生に起因する主巻線ＭＷとブレ−キ巻線ＢＷの短
絡が防止される。尚、上記バリスタＢ、あるいはコンデ
ンサＣの電気的な保護のために、同バリスタＢ、あるい
はコンデンサＣに直列に抵抗を接続しても良い。Therefore, in the control circuits of FIGS. 1 and 2, short circuit between the main winding MW and the break winding BW due to the generation of high voltage is prevented. For electrical protection of the varistor B or the capacitor C, a resistor may be connected in series with the varistor B or the capacitor C.
【００２３】図５から図８は、上記バリスタＢ、あるい
はコンデンサＣの接続によるピ−ク電圧低下効果を示す
ための、主巻線ＭＷとブレ−キ巻線ＢＷ間、即ち、図２
に示したＶ１電圧の波形図である。これらの各波形図に
おいて、縦軸の電圧は一目盛り０．５Ｋｖ、横軸の時間
は一目盛り５ｍｓである。5 to 8 show between the main winding MW and the brake winding BW, that is, FIG. 2 for showing the peak voltage lowering effect by the connection of the varistor B or the capacitor C.
5 is a waveform diagram of the V1 voltage shown in FIG. In each of these waveform diagrams, the voltage on the vertical axis is 0.5 Kv per scale, and the time on the horizontal axis is 5 ms per scale.
【００２４】図５は、サイリスタを使用しない制御回路
において、上記バリスタＢ、あるいはコンデンサＣをブ
レ−キ巻線ＢＷの両端に接続しない状態での電圧波形図
である。この図に示すように、上記バリスタＢ、あるい
はコンデンサＣをブレ−キ巻線ＢＷに接続しない場合、
上記Ｖ１はピ−ク電圧で約１．０Ｋｖを示している。FIG. 5 is a voltage waveform diagram in a state where the varistor B or the capacitor C is not connected to both ends of the break winding BW in the control circuit which does not use the thyristor. As shown in this figure, when the varistor B or the capacitor C is not connected to the brake winding BW,
The V1 indicates a peak voltage of about 1.0 Kv.
【００２５】図６は、サイリスタを使用しない制御回路
において、ブレ−キ巻線ＢＷの両端に０．１μＦのコン
デンサＣを接続した場合の電圧波形図である。この図に
示すように、上記Ｖ１はピ−ク電圧で約０．５Ｋｖまで
低下している。FIG. 6 is a voltage waveform diagram when a capacitor C of 0.1 μF is connected to both ends of the break winding BW in a control circuit which does not use a thyristor. As shown in this figure, the peak voltage V1 is lowered to about 0.5 Kv.
【００２６】図７は、サイリスタを使用した制御回路に
おいて、バリスタＢ、あるいはコンデンサＣをブレ−キ
巻線ＢＷの両端に接続しない状態での電圧波形図であ
る。この図に示すように、上記バリスタＢ、あるいはコ
ンデンサＣをブレ−キ巻線ＢＷ等に接続しない場合、上
記Ｖ１はピ−ク電圧で約１．２Ｋｖを示している。FIG. 7 is a voltage waveform diagram in a state where the varistor B or the capacitor C is not connected to both ends of the brake winding BW in the control circuit using the thyristor. As shown in this figure, when the varistor B or the capacitor C is not connected to the break winding BW or the like, the V1 indicates a peak voltage of about 1.2 Kv.
【００２７】図８は、サイリスタを使用した制御回路に
おいて、ブレ−キ巻線ＢＷの両端にバリスタＢを接続し
た場合の電圧波形図である。この図に示すように、上記
Ｖ１はピ−ク電圧で約０．８Ｋｖまで低下している。FIG. 8 is a voltage waveform diagram when the varistor B is connected to both ends of the break winding BW in the control circuit using the thyristor. As shown in this figure, the peak voltage V1 is lowered to about 0.8 Kv.
【００２８】[0028]
【発明の効果】以上のように本発明によれば、ステ−タ
の同一スロットに主巻線とブレ−キ巻線とが配設され、
前記主巻線とブレ−キ巻線の片方の線端が接続されてい
て、単極双投スイッチでブレ−キを動作させる単相直巻
整流子電動機の制御回路において、前記主巻線とブレ−
キ巻線間、またはブレ−キ巻線の両端にバリスタ、また
はコンデンサを接続したため、主巻線とブレ−キ巻線間
の発生電圧を抑制し、主巻線とブレ−キ巻線間の短絡が
防止されることから、ブレ−キ巻線の巻数を多くするこ
とができるため、単相直巻整流子電動機のブラシ寿命や
パワ−を低下させることなくブレ−キ性能を十分確保す
ることができるという効果がある。As described above, according to the present invention, the main winding and the brake winding are disposed in the same slot of the stator,
In a control circuit of a single-phase series-wound commutator motor, in which one end of the main winding is connected to one of the ends of the brake winding and the brake is operated by a single-pole double-throw switch, Blur
Since a varistor or a capacitor is connected between the main winding and the brake winding, the generated voltage between the main winding and the brake winding is suppressed and the main winding and the brake winding are connected. Since the short circuit is prevented and the number of turns of the brake winding can be increased, sufficient brake performance can be ensured without reducing the brush life and power of the single-phase series-wound commutator motor. There is an effect that can be.
【図１】本発明になる一実施例の単相直巻整流子電動機
の制御回路図である。FIG. 1 is a control circuit diagram of a single-phase series-wound commutator motor according to an embodiment of the present invention.
【図２】他の実施例の単相直巻整流子電動機の制御回路
図である。FIG. 2 is a control circuit diagram of a single-phase series-wound commutator motor according to another embodiment.
【図３】従来の単相直巻整流子電動機の制御回路図であ
る。FIG. 3 is a control circuit diagram of a conventional single-phase series-wound commutator motor.
【図４】従来の単相直巻整流子電動機の制御回路図であ
る。FIG. 4 is a control circuit diagram of a conventional single-phase series-wound commutator motor.
【図５】従来の単相直巻整流子電動機の主巻線とブレ−
キ巻線間の電圧波形図である。FIG. 5: Main winding and braces of a conventional single-phase series-wound commutator motor
FIG. 4 is a voltage waveform diagram between windings.
【図６】本発明になる制御回路を用いた単相直巻整流子
電動機の主巻線とブレ−キ巻線間の電圧波形図である。FIG. 6 is a voltage waveform diagram between a main winding and a brake winding of a single-phase series-wound commutator motor using the control circuit according to the present invention.
【図７】サイリスタ制御式の従来の単相直巻整流子電動
機の主巻線とブレ−キ巻線間の電圧波形図である。FIG. 7 is a voltage waveform diagram between a main winding and a brake winding of a conventional thyristor-controlled type single-phase series-wound commutator motor.
【図８】サイリスタ制御式の本発明になる制御回路を用
いた単相直巻整流子電動機の主巻線とブレ−キ巻線間の
電圧波形図である。FIG. 8 is a voltage waveform diagram between a main winding and a brake winding of a single-phase series-wound commutator motor using a thyristor control type control circuit according to the present invention.
Ｍ 電動機 ＭＷ 主巻線 ＢＷ ブレ−キ巻線 ＳＳＷ 単極双投スイッチ Ｂ バリスタ Ｃ コンデンサ Ｐ 商用電源 M electric motor MW main winding BW brake winding SSW Single pole double throw switch B Barista C capacitor P Commercial power supply
フロントページの続き (72)発明者 加納 貴紀 愛知県安城市住吉町３丁目11番８号 株 式会社マキタ内 (56)参考文献 実開 昭60−108198（ＪＰ，Ｕ) 実開 昭52−96221（ＪＰ，Ｕ) 実開 昭59−28297（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H02P 5/28 - 5/44 H02P 7/36 - 7/66 H02P 3/18 Front Page Continuation (72) Inventor Takanori Kano 3-11-8 Sumiyoshi-cho, Anjo City, Aichi, Ltd. Makita Co., Ltd. (56) References: 60-108198 (JP, U) 52-96221 (JP, U) Actual development Sho 59-28297 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) H02P 5/28-5/44 H02P 7/36-7/66 H02P 3 / 18
Claims (4)
ーキ巻線とが配設され、前記主巻線とブレーキ巻線の片
方の線端が接続されていて、単極双投スイッチでブレー
キを動作させる単相直巻整流子電動機の制御回路におい
て、前記主巻線とブレーキ巻線間に、前記主巻線とブレ
ーキ巻線間に発生する高電圧を低下させるバリスタを接
続したことを特徴とする単相直巻整流子電動機の制御回
路。1. A main winding and a brake winding are arranged in the same slot of a stator, and one wire end of the main winding and the brake winding are connected to each other, and a brake is applied by a single-pole double-throw switch. in the control circuit of the single-phase series-wound commutator motor to be operated, between the main winding and a brake winding, the main winding and shake
A control circuit for a single-phase series-wound commutator motor, characterized in that a varistor for reducing the high voltage generated between the windings is connected.
ーキ巻線とが配設され、前記主巻線とブレーキ巻線の片
方の線端が接続されていて、単極双投スイッチでブレー
キを動作させる単相直巻整流子電動機の制御回路におい
て、前記主巻線とブレーキ巻線間に、前記主巻線とブレ
ーキ巻線間に発生する高電圧を低下させるコンデンサを
接続したことを特徴とする単相直巻整流子電動機の制御
回路。2. A main winding and a brake winding are disposed in the same slot of the stator, and one wire end of the main winding and the brake winding are connected to each other, and a brake is applied by a single-pole double-throw switch. in the control circuit of the single-phase series-wound commutator motor to be operated, between the main winding and a brake winding, the main winding and shake
A control circuit for a single-phase series-wound commutator motor, characterized in that a capacitor that reduces the high voltage generated between the windings is connected.
ーキ巻線とが配設され、前記主巻線とブレーキ巻線の片
方の線端が接続されていて、単極双投スイッチでブレー
キを動作させる単相直巻整流子電動機の制御回路におい
て、前記ブレーキ巻線の両端に、ブレーキ巻線に発生す
る高電圧を低下させるバリスタを接続したことを特徴と
する単相直巻整流子電動機の制御回路。3. A main winding and a brake winding are arranged in the same slot of the stator, and one wire end of the main winding and the brake winding are connected to each other, and a brake is applied by a single-pole double-throw switch. In the control circuit of the single-phase series-wound commutator motor to be operated , the brake winding is generated at both ends of the brake winding.
A control circuit for a single-phase series-wound commutator motor, which is connected to a varistor that lowers the high voltage .
ーキ巻線とが配設され、前記主巻線とブレーキ巻線の片
方の線端が接続されていて、単極双投スイッチでブレー
キを動作させる単相直巻整流子電動機の制御回路におい
て、前記ブレーキ巻線の両端に、ブレーキ巻線に発生す
る高電圧を低下させるコンデンサを接続したことを特徴
とする単相直巻整流子電動機の制御回路。4. A main winding and a brake winding are disposed in the same slot of the stator, and one wire end of the main winding and the brake winding are connected to each other, and a brake is applied by a single-pole double-throw switch. In the control circuit of the single-phase series-wound commutator motor to be operated , the brake winding is generated at both ends of the brake winding.
A control circuit for a single-phase series-wound commutator motor, which is characterized by connecting a capacitor that lowers the high voltage .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33708793A JP3372094B2 (en) | 1993-12-28 | 1993-12-28 | Control circuit of single-phase series-wound commutator motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33708793A JP3372094B2 (en) | 1993-12-28 | 1993-12-28 | Control circuit of single-phase series-wound commutator motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07194185A JPH07194185A (en) | 1995-07-28 |
| JP3372094B2 true JP3372094B2 (en) | 2003-01-27 |
Family
ID=18305316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33708793A Expired - Fee Related JP3372094B2 (en) | 1993-12-28 | 1993-12-28 | Control circuit of single-phase series-wound commutator motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3372094B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3263284B2 (en) * | 1995-09-04 | 2002-03-04 | 株式会社マキタ | Electric chainsaw |
-
1993
- 1993-12-28 JP JP33708793A patent/JP3372094B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07194185A (en) | 1995-07-28 |
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