CN101425722A - Interference eliminating circuit for motor with brush - Google Patents
Interference eliminating circuit for motor with brush Download PDFInfo
- Publication number
- CN101425722A CN101425722A CNA2007101135966A CN200710113596A CN101425722A CN 101425722 A CN101425722 A CN 101425722A CN A2007101135966 A CNA2007101135966 A CN A2007101135966A CN 200710113596 A CN200710113596 A CN 200710113596A CN 101425722 A CN101425722 A CN 101425722A
- Authority
- CN
- China
- Prior art keywords
- capacitor
- motor
- twisted together
- circuit
- connects
- 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.)
- Pending
Links
Images
Landscapes
- Dc Machiner (AREA)
Abstract
The invention relates to an anti-interference circuit for a brushed motor, which comprises two insulated wires (3) evenly twisted together; capacitors are connected at arbitrary end or both ends of the insulated wires (3) evenly twisted together. The capacitors are connected with two electrode lead wires of the motor, or connected with a lead wire for power feeding, or the first capacitor is connected with the two electrode lead wires of the motor, and the second capacitor is connected with the lead wire for power feeding. By designing the new pulse circuit for eliminating the interference, the valve of the pulse circuit to go through the external load is minimum, therefore, the interference to the external circuit is effectively avoided.
Description
Technical field the present invention relates to a kind of disturbing pulse circuit that is used to eliminate, particularly a kind of interference eliminating circuit of brush motor.
The background technology motor-spin-coil respectively with commutator on the sheet metal that respectively commutates join, and commutator segment is insulated from each other and adjacent sheet has a very narrow clearance for insulation.When rotor rotated, brush when brush is connected across when leaving again between two commutator segments, can cause the instantaneous short circuit of a certain coil of rotor in rotor feed process, disconnect then.Coil is an inductive element, will inevitably produce a very big back-emf.Very little because of the gap between commutator segment, this back-emf is a very narrow very high pulse voltage of amplitude.Commutator has a plurality of commutator segments, when motor rotates a week, can produce a plurality of pulse voltages.This pulse train enters power supply by the power line of feed, enters other circuit by the internal resistance of source and various coupling path, and to other circuit, especially digital circuit causes serious interference.
At present, the way that addresses this problem normally adds filter circuit at power feed circuit or circuit and power feeder interface, and circuit has diversified form, and effect is not quite similar.Because this pulse amplitude is very high and the edge of a pulse is very empty, harmonic wave is abundant, and said method can weaken the amplitude of disturbing pulse, but can not thoroughly eliminate this interference, and to other circuit, especially impulse circuit still can cause interference.The actual also proof of using, regular meeting causes single chip microcomputer halt.
Summary of the invention technical problem to be solved by this invention is, overcome the defective of above-mentioned existing procucts and method, a kind of brush motor interference eliminating circuit is provided, by designing new elimination disturbing pulse circuit, make the disturbing pulse electric current minimum, to avoid that external circuit is caused interference through the value of outer load.
The present invention has adopted following technical scheme.
A kind of brush motor interference eliminating circuit comprises two contact conductors of motor and the lead-in wire of power feed, it is characterized in that: also comprise two even insulated conductors twisted together; The arbitrary end or the two ends of described two even insulated conductors twisted together are connected with capacitor.
A wherein end of described two even insulated conductors twisted together connects capacitor, and this capacitor connects two contact conductors of motor, perhaps connects the lead-in wire of power feed.
The best techniques scheme is, the two ends of described two even insulated conductors twisted together all are connected with capacitor, i.e. first capacitor and second capacitor; Wherein, first capacitor connects two contact conductors of motor, and second capacitor connects the lead-in wire of power feed.
Good effect of the present invention is: the size of current equidirectional by two rope-lay conductors is opposite, cancel out each other in two electric current formed magnetic fields, two uniform lines of twisting reduce the value of distributed constant and the coupling effect that distributed constant causes greatly, make the filter effect of capacitor more obvious.Consequently the disturbing pulse electric current is minimum through the value of outer load, can not cause interference to external circuit.
Description of drawings Fig. 1 is the schematic diagram of first embodiment of structure of the present invention.
Fig. 2 is the schematic diagram of second embodiment of structure of the present invention.
Fig. 3 is the schematic diagram of the 3rd embodiment of structure of the present invention.
Embodiment further specifies the present invention below in conjunction with the drawings and specific embodiments.
Embodiment one
As shown in Figure 1, present embodiment comprises two contact conductors 1 of motor and the lead-in wire 5 of power feed, also comprises two even insulated conductors twisted together 3.Described two even insulated conductors twisted together 3 couple together first capacitor 2 and second capacitor 4, and wherein, first capacitor 2 connects the lead-in wire 5 of two contact conductors, 1, the second capacitor, the 4 connection power feeds of motor.
Embodiment two
As shown in Figure 2, present embodiment comprises two contact conductors 1 of motor and the lead-in wire 5 of power feed, also comprises two even insulated conductors twisted together 3.The left end of described two even insulated conductors 3 twisted together connects first capacitor 2, and the right-hand member that this first capacitor 2 connects the even insulated conductor 3 twisted together of 1, two of two contact conductor of motors directly connects the lead-in wire 5 of power feed.
Embodiment three
As shown in Figure 3, present embodiment comprises two contact conductors 1 of motor and the lead-in wire 5 of power feed, also comprises two even insulated conductors twisted together 3.The right-hand member of described two even insulated conductors 3 twisted together connects second capacitor 4, and the left end that this second capacitor 4 connects the even insulated conductor 3 twisted together of 5, two in the lead-in wire of power feeds directly connects two contact conductors 1 of motor.
Claims (4)
1, a kind of brush motor interference eliminating circuit comprises two contact conductors (1) of motor and the lead-in wire (5) of power feed, it is characterized in that: also comprise two even insulated conductors twisted together (3); The arbitrary end or the two ends of described two even insulated conductors (3) twisted together are connected with capacitor.
2, brush motor interference eliminating circuit according to claim 1, it is characterized in that: a wherein end of described two even insulated conductors (3) twisted together connects capacitor, i.e. first capacitor (2), this first capacitor (2) connects two contact conductors (1) of motor.
3, brush motor interference eliminating circuit according to claim 1, it is characterized in that: a wherein end of described two even insulated conductors (3) twisted together connects capacitor, i.e. second capacitor (4), this second capacitor (4) connects the lead-in wire (5) of power feed.
4, brush motor interference eliminating circuit according to claim 1 is characterized in that: the two ends of described two even insulated conductors (3) twisted together all are connected with capacitor, i.e. first capacitor (2) and second capacitor (4); Wherein, first capacitor (2) connects two contact conductors (1) of motor, and second capacitor (4) connects the lead-in wire (5) of power feed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101135966A CN101425722A (en) | 2007-10-31 | 2007-10-31 | Interference eliminating circuit for motor with brush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101135966A CN101425722A (en) | 2007-10-31 | 2007-10-31 | Interference eliminating circuit for motor with brush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101425722A true CN101425722A (en) | 2009-05-06 |
Family
ID=40616114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101135966A Pending CN101425722A (en) | 2007-10-31 | 2007-10-31 | Interference eliminating circuit for motor with brush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101425722A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427296A (en) * | 2012-05-17 | 2013-12-04 | 海门市华联电碳有限公司 | Carbon brush of starting motor of automobile |
| CN105610027A (en) * | 2014-11-18 | 2016-05-25 | 通用电气公司 | Slip ring assembly and method for impedance matching high frequency signals across the slip ring assembly |
-
2007
- 2007-10-31 CN CNA2007101135966A patent/CN101425722A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427296A (en) * | 2012-05-17 | 2013-12-04 | 海门市华联电碳有限公司 | Carbon brush of starting motor of automobile |
| CN105610027A (en) * | 2014-11-18 | 2016-05-25 | 通用电气公司 | Slip ring assembly and method for impedance matching high frequency signals across the slip ring assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2388092C2 (en) | Pulse transformer with foil winding | |
| CN203071690U (en) | A stator winding wiring structure | |
| CN210608719U (en) | Flat wire stator of permanent magnet synchronous motor for vehicle | |
| CN113783337A (en) | Multilayer flat wire winding stator module and motor | |
| CN101425722A (en) | Interference eliminating circuit for motor with brush | |
| CN201623594U (en) | Motor stator and motor comprising same | |
| CN201118373Y (en) | Interference elimination circuit for brush electromotor | |
| CN109036799B (en) | Integrated multi-inductance element | |
| CN206834939U (en) | Motor winding wire deriving structure and motor | |
| WO2016027363A1 (en) | Transmission cable | |
| CN202695100U (en) | Structure of main transformer consisting of multiple transformers in inverse power supply | |
| CN212084830U (en) | Transformer device | |
| CN205104367U (en) | Condenser and permanent magnetism direct current motor | |
| CN2914275Y (en) | Axial parallel composite conductor | |
| CN210245273U (en) | Subminiature integrated patch network transformer | |
| CN209088779U (en) | A kind of electric vehicle and electronic automobile-used brushless single line motor and its winding construction | |
| CN108110932B (en) | Novel direct-winding motor stator in winding mode | |
| US20220108829A1 (en) | Wire for use in transformer winding and transformer | |
| CN208656532U (en) | The flat wire stator winding structure of motor | |
| CN2641768Y (en) | Composite conductive wire | |
| CN217362700U (en) | Stator module of three-phase motor and motor using same | |
| CN218472875U (en) | New forms of energy motor stator | |
| CN110768410A (en) | Flat wire stator of permanent magnet synchronous motor for vehicle | |
| CN215186143U (en) | Non-tooth slot generator winding for motor | |
| JP2007074811A (en) | Surge suppressing unit assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090506 |