CN106385138A - Electromagnetic interference suppression structure of DC motor commutator - Google Patents
Electromagnetic interference suppression structure of DC motor commutator Download PDFInfo
- Publication number
- CN106385138A CN106385138A CN201610992739.4A CN201610992739A CN106385138A CN 106385138 A CN106385138 A CN 106385138A CN 201610992739 A CN201610992739 A CN 201610992739A CN 106385138 A CN106385138 A CN 106385138A
- Authority
- CN
- China
- Prior art keywords
- commutator
- electromagnetic interference
- motor
- interference suppression
- suppression structure
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
- H02K11/026—Suppressors associated with brushes, brush holders or their supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/66—Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Motor Or Generator Current Collectors (AREA)
- Dc Machiner (AREA)
Abstract
The invention provides an electromagnetic interference suppression structure of a DC motor commutator. An existing DC motor has a problem of large amount of electromagnetic interference by sparks which are generated between an electric brush and commutator segments every inductor disconnection of the motor commutator in operation, and direct influence of the electromagnetic interference to normal operation of nearby electronic equipment. A method according to the electromagnetic interference suppression structure is characterized in that a capacitor is added between two commutator segments for absorbing the electromagnetic interference generated by the commutator. The electromagnetic interference suppression structure is characterized in that the two commutator segments are connected with the multilayer ceramic capacitor which is added at a rotor coil; n multilayer ceramic capacitors are respectively placed and welded in correspondence with a portion between every two commutator segments; and a rotor coil winding is connected with a corresponding position in an end-to-end manner. The electromagnetic interference suppression structure has advantages of reasonable structure and high convenience in use.
Description
Technical field
The present invention relates to DC motor commutator system, particularly DC motor commutator electromagnetic interference suppression structure.
Background technology
The group such as the main commutator segment of existing DC motor commutator, plastic casing, metal substrate, mica sheet, brush at present
Become, existing problems are that during operating, engine commutator often commutates the moment that inductance disconnects, and produce between brush and commutator segment
Spark externally produces substantial amounts of electromagnetic interference, directly affects the normal work of electronic equipment nearby, and such as vapour vehicle windshield wiper is straight
Stream engine commutator can affect the cisco unity malfunctions such as computer board and frequency modulation broadcasting, makes commutator product not reach national standard
EMI electromagnetism Interference and the index of radiation interference.
Content of the invention
The purpose of the present invention is for drawbacks described above, provides a kind of DC motor commutator electromagnetic interference suppression structure, its
Structure is to install capacitor between two commutator segments additional to absorb electromagnetic interference produced by commutator, reaches GB EM1 rule with this
Fixed Conducted Electromagnetic Interference and Radiative EMI index.
The technical scheme is that DC motor commutator electromagnetic interference suppression structure it is characterised in that direct current generator changes
It is to install capacitor between two commutator segments additional to absorb electromagnetic interference produced by commutator to device electromagnetic interference suppression structure, change
It is made up of to the commutator segment of device 3 or n piece, the capacitors count installing additional between two commutator segments is identical with the quantity of commutator segment,
The capacitor installing additional on commutator is also formed by 3 or n.
Described DC motor commutator electromagnetic interference suppression structure is it is characterised in that DC motor commutator electromagnetic interference presses down
Structure processed is that the commutator segment of commutator 3 is formed by 12, the patch capacitor that two commutator segments install additional between connecting 2 at rotor coil
Device 1, quantity is identical with the quantity of commutator segment 3, and the chip capacitor 1 that commutator installs additional is also formed by 12, and concrete structure is
At commutator 3 one end commutator segment connection rotor coil, 12 chip capacitors 1 are corresponded to welding between each two commutator segment 3 by 2.
Instant invention overcomes conventional when operating engine commutator often commutate moment, brush and the commutator segment that inductance disconnects
Between the spark that produces externally produce substantial amounts of electromagnetic interference, absorb electromagnetic interference produced by commutator, GB reached with this
Conducted Electromagnetic Interference and Radiative EMI index that EM1 specifies.Have simply easily dress, rationally distributed, be fixed conveniently, performance can
Lean on, the advantage of low cost, be especially reduction of cost, improve practicality and reliability, direct current generator can be widely used in
Field.
Brief description
Fig. 1 DC motor commutator electromagnetic interference suppresses structural representation.
Fig. 2 DC motor commutator electromagnetic interference suppression structure material object schematic diagram.
In figure 1 chip capacitor, 2 commutator segments connect at rotor coil, 3 commutator segments.
Specific embodiment
Fig. 1 is DC motor commutator electromagnetic interference suppression structural representation., operation principle is between two commutator segments
Install capacitor additional, when motor rotates, rotor coil inductance electromotive force produces electromagnetism Interference and radiation interference in commutation, makes
GB EMI electromagnetic interference index does not reach requirement, the present invention be install chip capacitor 1 additional between two commutator segments after, absorb
Electromagnetic interference produced by commutator.Embodiment is that the commutator segment of commutator 3 is formed by 12, and two commutator segments connections turn
Chip capacitor 1 quantity installing additional between 2 at subcoil is identical with the quantity of commutator segment 3, the patch capacitor that commutator installs additional
Device 1 is also formed by 12, and specifically at commutator 3 one end commutator segment connection rotor coil, 2 is corresponding by 12 chip capacitors 1
Weld between each two commutator segment 3.
Claims (2)
1. DC motor commutator electromagnetic interference suppression structure is it is characterised in that DC motor commutator electromagnetic interference suppresses structure
It is to install capacitor between two commutator segments additional to absorb electromagnetic interference produced by commutator, the commutator segment of commutator is by 3 or n
Piece forms, and the capacitors count installing additional between two commutator segments is identical with the quantity of commutator segment, the capacitor that commutator installs additional
Also formed by 3 or n.
2. DC motor commutator electromagnetic interference suppresses structure it is characterised in that direct current generator commutates according to claim 1
Device electromagnetic interference suppresses the commutator segment that structure is commutator 3 to be formed by 12, and two commutator segments add between connecting 2 at rotor coil
The chip capacitor 1 of dress, quantity is identical with the quantity of commutator segment 3, and the chip capacitor 1 that commutator installs additional is also by 12 groups
Become, concrete structure is to connect at rotor coil 2 in commutator 3 one end commutator segment to change corresponding for 12 chip capacitors 1 each two
Weld between piece 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610992739.4A CN106385138A (en) | 2016-11-01 | 2016-11-01 | Electromagnetic interference suppression structure of DC motor commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610992739.4A CN106385138A (en) | 2016-11-01 | 2016-11-01 | Electromagnetic interference suppression structure of DC motor commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106385138A true CN106385138A (en) | 2017-02-08 |
Family
ID=57957387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610992739.4A Pending CN106385138A (en) | 2016-11-01 | 2016-11-01 | Electromagnetic interference suppression structure of DC motor commutator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106385138A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063781A (en) * | 1991-01-18 | 1992-08-19 | 马渊马达株式会社 | The armature of miniature motor reaches the method for coiling thereon |
| EP0714159A2 (en) * | 1994-11-24 | 1996-05-29 | Johnson Electric S.A. | A rotor for an electric motor |
| CN102857058A (en) * | 2011-06-30 | 2013-01-02 | 阿斯莫有限公司 | Motor |
| DE102011106686A1 (en) * | 2011-07-06 | 2013-01-10 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Commutator for e.g. direct current motor, in automobile region, has expanding body compressed in axial portion regarding rotational axis, clamped between connection pads and pressing condensers with connection contacts against pads |
-
2016
- 2016-11-01 CN CN201610992739.4A patent/CN106385138A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063781A (en) * | 1991-01-18 | 1992-08-19 | 马渊马达株式会社 | The armature of miniature motor reaches the method for coiling thereon |
| EP0714159A2 (en) * | 1994-11-24 | 1996-05-29 | Johnson Electric S.A. | A rotor for an electric motor |
| CN102857058A (en) * | 2011-06-30 | 2013-01-02 | 阿斯莫有限公司 | Motor |
| DE102011106686A1 (en) * | 2011-07-06 | 2013-01-10 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Commutator for e.g. direct current motor, in automobile region, has expanding body compressed in axial portion regarding rotational axis, clamped between connection pads and pressing condensers with connection contacts against pads |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8917042B2 (en) | Methods and systems for reducing conducted electromagnetic interference | |
| CN203444985U (en) | Direct-current filtering thin-film capacitor used in high-frequency dedusting power supply | |
| CN106385138A (en) | Electromagnetic interference suppression structure of DC motor commutator | |
| CN206775329U (en) | DC motor commutator electromagnetic interference suppresses structure | |
| CN206775330U (en) | DC motor commutator suppression electromagnetic interference structure | |
| EP3855611A1 (en) | System for inhibiting electromagnetic interference of refrigerant radiator and household appliance | |
| CN103545963A (en) | Stator end electric shielding structure of synchronous generator | |
| CN103259399A (en) | Method for achieving power adapter electromagnetic compatibility | |
| CN206517240U (en) | DC motor commutator electromagnetic interference suppresses structure | |
| CN206962648U (en) | DC motor commutator electromagnetic interference suppresses structure | |
| CN106329838A (en) | Electromagnetic interference suppression method and structure of direct-current motor commutator | |
| CN202488327U (en) | Brushless motor with built-in controller | |
| US20130009581A1 (en) | Motor Converter Circuit for an Electric Drive Motor and Electric Drive Device Having Such a Motor Converter Circuit | |
| CN106357055A (en) | Electromagnetic interference inhibiting component structure of direct-current motor commutator | |
| CN103490563B (en) | PCB filter circuit for micro machine multipoint earthing wideband EMC | |
| CN204794584U (en) | EMC device of motor | |
| CN204216810U (en) | Based on the separate type intermediate frequency transformer inversion brushless excitation system of IGBT technology | |
| CN206775280U (en) | Brush carrier fixed plate and there is its motor | |
| CN104283376B (en) | For the structural detail of electricity electrically to be touched logical clamping Chu Tong mechanisms | |
| CN202153700U (en) | Brushless magnet DC blower fan used for automobile | |
| CN106655637A (en) | DC motor commutator electromagnetic interference suppression method | |
| CN201238242Y (en) | EMC improving device of electric motor | |
| CN103856031A (en) | Power circuit for electronic machine | |
| CN206271933U (en) | A kind of novel electric power plug | |
| CN101546975A (en) | No-spark electronic fuel pump for resisting electromagnetic interference and adopted circuit thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170208 |