CN1290987A - Electromagnetic compatible anti-interference device of permanent magnetic DC motor - Google Patents
Electromagnetic compatible anti-interference device of permanent magnetic DC motor Download PDFInfo
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- CN1290987A CN1290987A CN00127422A CN00127422A CN1290987A CN 1290987 A CN1290987 A CN 1290987A CN 00127422 A CN00127422 A CN 00127422A CN 00127422 A CN00127422 A CN 00127422A CN 1290987 A CN1290987 A CN 1290987A
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- motor
- permanent magnetic
- connects
- interference device
- interference
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Abstract
The anti-interference device includes a filter circuit comprising parallelly connected capacitors C1, C2 and C3 and annular magnetic core inductor L and a harmonic circuit comprising serially connected capacitors C4 and C5 as well as input conducting pins to outer power source and output conducting pins to motor. It is connected in the input circuit of permanent magnetic motor to resist electronic interference, to reduce noise interference and ensure the normal operation of electronic and electric equipment in vehicle.
Description
The present invention relates to permanent magnet DC motor electromagnetism means for anti-jamming, especially be installed in the means for anti-jamming on the electric motor of automobile air regulator washing pump.
Along with developing rapidly of science and technology, the electronics of automobile industry are also more and more advanced, it is various to become increasingly complex, because the signal energy that motor produces at work can directly have influence on the result of use of the sophisticated electronics in the automobile, common electric machine washing pump as original use, owing to be subjected to electromagnetic interference and noise jamming, will bring harmful effect to the result of use of electronic apparatus equipment advanced on the automobile.
The object of the present invention is to provide a kind of electromagnetic compatible anti-interference device of permanent magnetic DC motor of eliminating electromagnetic interference, noise jamming to the permanent magnet DC motor influence.
Purpose of the present invention realizes by following technical proposal.This means for anti-jamming comprises wiring board, be connected with enter conductive film that connects the external power both positive and negative polarity and the output conducting strip that connects the motor both positive and negative polarity on the wiring board, it is characterized in that described enter conductive film connects filter circuit, the output of filter circuit connects the harmonic wave short circuit current, and the harmonic wave short circuit current connects motor through the output conducting strip.
The parallel circuits that described filter circuit is made up of the capacitor C 1, C2 and the inductance L that are in series and capacitor C 3.
Described inductance L is the toroidal core inductance that is wrapped on the toroidal core.
Described harmonic wave short circuit current is made up of capacitor C 4, the C5 of mutual series connection.
The present invention has adopted the electronic circuit of special core inductance to realize anti-electromagnetic interference and has reduced effect such as noise jamming, this means for anti-jamming is installed in the input circuit of permanent magnet DC motor reaches anti-interference purpose, as be installed on the electric motor of automobile washing pump, can alleviate the interference effect of electronics on the automobile, appliance equipment, guarantee the result of use of advanced electronic and electrical equipment on the automobile.
Description of drawings.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is circuit theory diagrams.
Below in conjunction with above-mentioned accompanying drawing the embodiment of the invention is described in detail again.
As Figure 1-3, electromagnetic compatible anti-interference device of permanent magnetic DC motor includes a wiring board (3), be connected with enter conductive film (1) that connects the external power both positive and negative polarity and the output conducting strip (4) that connects the motor both positive and negative polarity on the wiring board, enter conductive film connects filter circuit, filter circuit output connects the harmonic wave short circuit current, and the harmonic wave short circuit current connects motor through the output conducting strip.3 uniform breach (5) are as the telltale mark that joins with motor on the wiring board.
Filter circuit is formed two towering double-smoothing circuit in parallel by the capacitor C 1 that is in series, C2 and annular inductance L and capacitor C 3.Inductance L is that enameled wire loop is wrapped in the toroidal core inductance on the toroidal core (2).
The harmonic wave short circuit current is connected motor side through the output conducting strip, is made up of capacitor C 4, the C5 of mutual series connection, has the harmonic wave effect, prevents the loop interference.Capacitor C 1, C2, C3, C4, C5 are in the circuit board soldered.Reasonable configuration has been carried out in the power supply input and output, reduced mutual inductive interference.
The present invention is bigger according to signal energy difference on each frequency range that motor produced, the intensity of low-frequency range is greater than high band, interference signal is 380mv, in order to reduce and to prevent bigger interference, carry out filtering by two towering double-smoothing circuit with coupling, the filtering amount is about 100mv after tested, has reached the filter effect that solves the maximum interference signal.On appearance structure, adopt small-sized electronic devices and components, can reduce electric motor of automobile washing pump structural volume.
Claims (4)
1. electromagnetic compatible anti-interference device of permanent magnetic DC motor, comprise wiring board (3), be connected with enter conductive film (1) that connects the external power both positive and negative polarity and the output conducting strip (4) that connects the motor both positive and negative polarity on the wiring board, it is characterized in that described enter conductive film connects filter circuit, the output of filter circuit connects the harmonic wave short circuit current, and the harmonic wave short circuit current connects motor through the output conducting strip.
2. electromagnetic compatible anti-interference device of permanent magnetic DC motor as claimed in claim 1 is characterized in that the parallel circuits that described filter circuit is made up of the capacitor C 1, C2 and the inductance L that are in series and capacitor C 3.
3. electromagnetic compatible anti-interference device of permanent magnetic DC motor as claimed in claim 1 or 2 is characterized in that described inductance L is for being wrapped in the toroidal core inductance on the toroidal core (2).
4. electromagnetic compatible anti-interference device of permanent magnetic DC motor as claimed in claim 1 is characterized in that described harmonic wave short circuit current is made up of capacitor C 4, the C5 of mutual series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00127422A CN1290987A (en) | 2000-11-09 | 2000-11-09 | Electromagnetic compatible anti-interference device of permanent magnetic DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00127422A CN1290987A (en) | 2000-11-09 | 2000-11-09 | Electromagnetic compatible anti-interference device of permanent magnetic DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1290987A true CN1290987A (en) | 2001-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00127422A Pending CN1290987A (en) | 2000-11-09 | 2000-11-09 | Electromagnetic compatible anti-interference device of permanent magnetic DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1290987A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2415343A (en) * | 2004-06-07 | 2005-12-21 | Ford Global Tech Llc | An apparatus for reducing radiated emissions from an electronic module |
| CN100435481C (en) * | 2004-01-08 | 2008-11-19 | 深圳市三叶照明科技有限公司 | Electromagnetic compatible filter network and filter network module |
| CN103085735A (en) * | 2012-12-14 | 2013-05-08 | 芜湖博耐尔汽车电气系统有限公司 | Circuit for improving electromagnetic compatibility of air-conditioning blower for vehicle |
| CN108923591A (en) * | 2018-09-28 | 2018-11-30 | 浙江凯威碳材料有限公司 | A kind of micro machine anti-interference protective device of semicircular ring electromagnetic compatibility |
| WO2020035005A1 (en) * | 2018-08-16 | 2020-02-20 | 广东肇庆爱龙威机电有限公司 | Brushed direct-current electric motor |
-
2000
- 2000-11-09 CN CN00127422A patent/CN1290987A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435481C (en) * | 2004-01-08 | 2008-11-19 | 深圳市三叶照明科技有限公司 | Electromagnetic compatible filter network and filter network module |
| GB2415343A (en) * | 2004-06-07 | 2005-12-21 | Ford Global Tech Llc | An apparatus for reducing radiated emissions from an electronic module |
| US7145783B2 (en) | 2004-06-07 | 2006-12-05 | Ford Global Technologies, Llc | Apparatus reducing radiated emission from electronic modules |
| GB2415343B (en) * | 2004-06-07 | 2007-08-22 | Ford Global Tech Llc | An apparatus for reducing radiated emissions from an electronic module |
| CN103085735A (en) * | 2012-12-14 | 2013-05-08 | 芜湖博耐尔汽车电气系统有限公司 | Circuit for improving electromagnetic compatibility of air-conditioning blower for vehicle |
| WO2020035005A1 (en) * | 2018-08-16 | 2020-02-20 | 广东肇庆爱龙威机电有限公司 | Brushed direct-current electric motor |
| CN108923591A (en) * | 2018-09-28 | 2018-11-30 | 浙江凯威碳材料有限公司 | A kind of micro machine anti-interference protective device of semicircular ring electromagnetic compatibility |
| CN108923591B (en) * | 2018-09-28 | 2023-12-01 | 浙江凯威碳材料有限公司 | Semi-circular ring electromagnetic compatibility anti-interference protection device for micro motor |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |