SU826505A1 - Device for suppressing radiointerference voltages of commutator electric machine - Google Patents
Device for suppressing radiointerference voltages of commutator electric machine Download PDFInfo
- Publication number
- SU826505A1 SU826505A1 SU792749184A SU2749184A SU826505A1 SU 826505 A1 SU826505 A1 SU 826505A1 SU 792749184 A SU792749184 A SU 792749184A SU 2749184 A SU2749184 A SU 2749184A SU 826505 A1 SU826505 A1 SU 826505A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- suppressing
- electric machine
- voltages
- radiointerference
- commutator electric
- Prior art date
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- Dc Machiner (AREA)
Description
Изобретение относитс к эпектротеё нике и может быть использовано дпй подавлени напр жений радиопомех, возникающих при работе однофазЕ1ых коллекторных электрических машин. Известны устройства подавлени напр жений радиопомех от коллекторных электриаеских машин путем включени в цепи питани реактивных фильтров, которые замыкают или увеличивают сопротивление пути распространени помех . Известные устройства эффективны при исзпользовании в заземленшлх электрнчео кйх машинах. При отсутствии заземлени затухание, вносимое фильтрами, уменьшат етс . А так как уровень напр жений радиопомех , создаваемых электрической машиной, осталс неизменным, то уровень напр жений радиопомех в цеп х питани электрической машины возрастает . Уменьшение, затухани , вносимого фильтрами, объ сн етс ухудшением добротности эпектрорадиоэлементов и увел чением сопротивлени несимметричного пути распространени помех. Наиболее близким по технической сущности и достигаемому эффекту вл етс устройство подавпенин радиопомех, содержащее Г-образный индуктивно-емкост ной фильтр, соединенный с обмотками статора, расположенными симметрично по обе стороны коллектора TsJ. Недостатком этого устройства вл етс высокий уровень радиопомех. Цель изобретени - снижение уровн помех. Поставленна цель достигаетс тем, что индуктивно св занные катушки филь-рра включены встречно ме лу каждой об foткoй статора и щеткой, а конденс&тор включен между обмотками статора. Такое включение реактивного фильтра позвол ет уменьшить индуктивность цепей , участвующих в пробое промежутка щетка-коллектор, и уменьшить скорость изменени тока вобмотках статора, что ведет к уменьшению уровн напр женийThe invention relates to a device and can be used for suppressing the voltages of radio interference arising from the operation of single-phase collector electric machines. A device for suppressing the voltage of radio interference from collector electric machines is known by including reactive filters in the power supply circuit, which closes or increases the resistance of the propagation path. Known devices are effective when used in grounded electronic machines. In the absence of grounding, the attenuation introduced by the filters is reduced. And since the voltage level of the radio interference generated by the electric machine remained unchanged, the voltage level of the radio interference in the power supply circuit of the electric machine increases. The decrease in attenuation introduced by the filters is explained by the deterioration of the quality of the electro-radio elements and an increase in the resistance of the asymmetrical path of the propagation of interference. The closest in technical essence and the achieved effect is a device for suppressing radio interference, which contains an L-shaped inductive-capacitive filter connected to stator windings located symmetrically on both sides of the collector TsJ. A disadvantage of this device is a high level of radio interference. The purpose of the invention is to reduce the level of interference. The goal is achieved by the fact that the inductively coupled filter-coil coils are connected to each of the two stator sizes and the brush, and the condenser & torus is connected between the stator windings. Such inclusion of a reactive filter reduces the inductance of the circuits involved in the gap breakdown of the collector brush and reduces the rate of current variation in the stator windings, which leads to a decrease in the voltage level
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792749184A SU826505A1 (en) | 1979-03-28 | 1979-03-28 | Device for suppressing radiointerference voltages of commutator electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792749184A SU826505A1 (en) | 1979-03-28 | 1979-03-28 | Device for suppressing radiointerference voltages of commutator electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU826505A1 true SU826505A1 (en) | 1981-04-30 |
Family
ID=20820579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792749184A SU826505A1 (en) | 1979-03-28 | 1979-03-28 | Device for suppressing radiointerference voltages of commutator electric machine |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU826505A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4673837A (en) * | 1984-05-11 | 1987-06-16 | Amp Incorporated | Motor brush assembly |
| US4783906A (en) * | 1985-11-12 | 1988-11-15 | Amp Incorporated | Method of making a customizable electrical article |
| US4895536A (en) * | 1984-05-11 | 1990-01-23 | Amp Incorporated | Lead frame assembly having severable electrical circuit sections |
-
1979
- 1979-03-28 SU SU792749184A patent/SU826505A1/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4673837A (en) * | 1984-05-11 | 1987-06-16 | Amp Incorporated | Motor brush assembly |
| US4895536A (en) * | 1984-05-11 | 1990-01-23 | Amp Incorporated | Lead frame assembly having severable electrical circuit sections |
| US4783906A (en) * | 1985-11-12 | 1988-11-15 | Amp Incorporated | Method of making a customizable electrical article |
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