CN206452285U - Suppress the brush motor of electromagnetic radiation - Google Patents
Suppress the brush motor of electromagnetic radiation Download PDFInfo
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- CN206452285U CN206452285U CN201621483273.7U CN201621483273U CN206452285U CN 206452285 U CN206452285 U CN 206452285U CN 201621483273 U CN201621483273 U CN 201621483273U CN 206452285 U CN206452285 U CN 206452285U
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- mode capacitor
- electromagnetic radiation
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Abstract
The utility model is related to brush motor technical field, disclose a kind of brush motor for suppressing electromagnetic radiation, including motor body, electrode input end and negative input, the electrode input end and the negative input are in series with two brushes in an at least inductance to the motor body respectively, and differential mode capacitor device and common mode capacitor are parallel with respectively between the input of the electrode input end and the corresponding inductance of the negative input；The differential mode capacitor device and the common mode capacitor all include an at least electric capacity.Whereby, the utility model can improve the electromagnetic compatibility characteristic of motor.
Description
Technical field
The utility model is related to brush motor technical field, more particularly to a kind of brush motor for suppressing electromagnetic radiation.
Background technology
Popular conventional DC brush motor does not add any effective measures electromagnetic compatibility measure currently on the market, high
The life and material of surrounding can be have impact on to around producing electromagnetic interference between commutator and brush during speed operating, produced
Harmful infringement, due to being unsatisfactory for the radiation interference index of concerned countries standard requirement, thus is unsatisfactory for many application scenarios, must
Electromagnetic compatibility characteristic must be improved, place and the environment of electromagnetic compatibility index request could be met.
In summary, prior art there will naturally be inconvenience and defect in actual use, and it is therefore necessary to improved.
Utility model content
For above-mentioned defect, the purpose of this utility model is to provide a kind of brush motor for suppressing electromagnetic radiation, changes
The electromagnetic compatibility characteristic of kind motor.
To achieve these goals, the utility model provides a kind of brush motor for suppressing electromagnetic radiation, including motor sheet
Body, electrode input end and negative input, the electrode input end and the negative input are in series with least one electricity respectively
Sense on two brushes in the motor body, the electrode input end and the corresponding inductance of the negative input
Differential mode capacitor device and common mode capacitor are parallel between input respectively；The differential mode capacitor device and the common mode capacitor are all wrapped
An at least electric capacity is included.
According to the brush motor of described suppression electromagnetic radiation, electrode input end one first inductance of series connection to the electricity
On intrinsic first brush of machine, the second brush in negative input series connection one second inductance to the motor body
On.
According to the brush motor of described suppression electromagnetic radiation, the differential mode capacitor device for be connected in parallel on first inductance and
First electric capacity of the input of second inductance.
According to the brush motor of described suppression electromagnetic radiation, the common mode capacitor for be connected in parallel on first inductance and
The second electric capacity and the 3rd electric capacity of the input of second inductance, second electric capacity are connected and described with the 3rd electric capacity
The common end grounding of second electric capacity and the 3rd electric capacity.
According to the brush motor of described suppression electromagnetic radiation, the inductance, the differential mode capacitor device and the common mode
Capacitor is all located at the inside of the motor body.
According to the brush motor of described suppression electromagnetic radiation, the motor body is high current high power direct current generator.
The brush motor described in the utility model for suppressing electromagnetic radiation, including motor body, electrode input end and negative
Pole input, the electrode input end and the negative input are in series with an at least inductance to the motor body respectively
On two brushes, it is parallel with respectively between the input of the electrode input end and the corresponding inductance of the negative input
Differential mode capacitor device and common mode capacitor；The differential mode capacitor device and the common mode capacitor all include an at least electric capacity.Whereby,
The utility model can improve the electromagnetic compatibility characteristic of motor.
Brief description of the drawings
Fig. 1 is the schematic diagram of the brush motor of the suppression electromagnetic radiation described in the utility model preferred embodiment.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
Fig. 1 shows the brush motor of the suppression electromagnetic radiation of the utility model preferred embodiment, including motor body
100th, electrode input end 21 and negative input 22, the electrode input end 21 and negative input 22 are in series with least respectively
On two brushes in one inductance to motor body 100, the corresponding electricity of the electrode input end 21 and negative input 22
Differential mode capacitor device and common mode capacitor are parallel between the input of sense respectively；The differential mode capacitor device and common mode capacitor are all wrapped
An at least electric capacity is included.When differential mode capacitor device and common mode capacitor rotate at a high speed with inductance interaction to suppress motor respectively
The DM EMI and common mode disturbances of generation, prevent the outside radiation effect surrounding devices of interference signal from using the peace of even life entity
Entirely.
As schemed, the present embodiment is preferably, and the in series connection one first inductance 11 to the motor body 100 of electrode input end 21
On one brush 101, on the second brush 102 in the series connection of negative input 22 one second inductance 12 to the motor body 100.Its
In, the differential mode capacitor device is the first electric capacity 31 of the input for being connected in parallel on the first inductance 11 and the second inductance 12；The common mode
Capacitor is the second electric capacity 32 and the 3rd electric capacity 33 for the input for being connected in parallel on the first inductance 11 and the second inductance 12, described second
Electric capacity 32 connected with the 3rd electric capacity 33 and the second electric capacity 32 and the 3rd electric capacity 33 common end grounding, i.e., described second electric capacity 32 with
One end ground connection that 3rd electric capacity 33 is connected.So as to form poor between the first electric capacity 31, the first inductance 11 and the second inductance 12
Mould filter circuit with suppress motor at a high speed rotation when the DM EMI that produces；Second electric capacity 32, the 3rd the 33, first electricity of electric capacity
Form common mode filtering loop to suppress the common mode disturbances produced when motor rotates at a high speed between the inductance 12 of sense 11 and second.With this
As the interference signal sent when suppressing motor commutator brush due to high speed rotation, motor rotation at a high speed can be efficiently reduced
When the electromagnetic radiation that produces, reach that husband's chromogenic indicator is qualified.
In the present embodiment, all electric elements are all located at the inside of motor 100, including the first inductance 11, the second inductance 12,
First electric capacity 31, the second electric capacity 32 and the 3rd electric capacity 33 are all located at the inside of motor 100, in order to applied to various places and
Environment, can be applicable to various industry, family, medical application fields etc..
The motor 100 of the present embodiment is preferably high current high power direct current generator.
The utility model is intended to change the electromagnetic compatibility characteristic of above-mentioned motor, is tested after improvement, electromagnetic compatibility characteristic
Significantly improve, meet the requirement of International Country standard index, fully meet the requirement of various places and environment.
In summary, the brush motor described in the utility model for suppressing electromagnetic radiation, including the input of motor body, positive pole
End and negative input, the electrode input end and the negative input are in series with an at least inductance to the motor respectively
On intrinsic two brushes, divide between the input of the electrode input end and the corresponding inductance of the negative input
Differential mode capacitor device and common mode capacitor are not parallel with；The differential mode capacitor device and the common mode capacitor all include at least one electricity
Hold.Whereby, the utility model can improve the electromagnetic compatibility characteristic of motor.
Certainly, the utility model can also have other various embodiments, spiritual and its essence without departing substantially from the utility model
In the case of, those skilled in the art work as can make various corresponding changes and deformation, but these according to the utility model
Corresponding change and deformation should all belong to the scope of the claims appended by the utility model.
Claims (6)
1. a kind of brush motor for suppressing electromagnetic radiation, it is characterised in that defeated including motor body, electrode input end and negative pole
Enter end, the electrode input end and the negative input are in series with two in an at least inductance to the motor body respectively
On brush, differential mode is parallel with respectively between the input of the electrode input end and the corresponding inductance of the negative input
Capacitor and common mode capacitor；The differential mode capacitor device and the common mode capacitor all include an at least electric capacity.
2. the brush motor according to claim 1 for suppressing electromagnetic radiation, it is characterised in that the electrode input end series connection
On the first brush in one first inductance to the motor body, negative input one second inductance of series connection to the motor
On intrinsic second brush.
3. the brush motor according to claim 2 for suppressing electromagnetic radiation, it is characterised in that the differential mode capacitor device is simultaneously
It is associated in the first electric capacity of the input of first inductance and second inductance.
4. the brush motor according to claim 2 for suppressing electromagnetic radiation, it is characterised in that the common mode capacitor is simultaneously
Be associated in the second electric capacity and the 3rd electric capacity of the input of first inductance and second inductance, second electric capacity with it is described
The series connection of 3rd electric capacity and the common end grounding of second electric capacity and the 3rd electric capacity.
5. the brush motor according to claim 1 for suppressing electromagnetic radiation, it is characterised in that the inductance, the differential mode
Capacitor and the common mode capacitor are all located at the inside of the motor body.
6. the brush motor of the suppression electromagnetic radiation according to any one of Claims 1 to 5, it is characterised in that the motor
Body is high current high power direct current generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621483273.7U CN206452285U (en) | 2016-12-30 | 2016-12-30 | Suppress the brush motor of electromagnetic radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621483273.7U CN206452285U (en) | 2016-12-30 | 2016-12-30 | Suppress the brush motor of electromagnetic radiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206452285U true CN206452285U (en) | 2017-08-29 |
Family
ID=59673737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621483273.7U Active CN206452285U (en) | 2016-12-30 | 2016-12-30 | Suppress the brush motor of electromagnetic radiation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206452285U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110071603A (en) * | 2019-04-17 | 2019-07-30 | 东风商用车有限公司 | A kind of rain shaving electrical machine EMC circuit |
| CN114115007A (en) * | 2021-11-17 | 2022-03-01 | 深圳市联创三金电器有限公司 | Gear control method and circuit of electric appliance |
-
2016
- 2016-12-30 CN CN201621483273.7U patent/CN206452285U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110071603A (en) * | 2019-04-17 | 2019-07-30 | 东风商用车有限公司 | A kind of rain shaving electrical machine EMC circuit |
| CN110071603B (en) * | 2019-04-17 | 2020-05-08 | 东风商用车有限公司 | Windscreen wiper motor EMC circuit |
| CN114115007A (en) * | 2021-11-17 | 2022-03-01 | 深圳市联创三金电器有限公司 | Gear control method and circuit of electric appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 Area B, 3rd Floor, 13 Building, Software Town, Shenzhen Dayun, 8288 Longgang Avenue, Yuanshan Street, Longgang District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN MAIKANGYI MEDICAL ROBOT CO.,LTD. Address before: 518000 Area B, 3rd Floor, 13 Building, Software Town, Shenzhen Dayun, 8288 Longgang Avenue, Henggang Street, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN MAIKANGYI TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181120 Address after: 518000 3/F, 13 Building, Shenzhen Dayun Software Town, 8288 Longgang Avenue, Longgang District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN MAIKANGXIN MEDICAL ROBOT Co.,Ltd. Address before: 518000 Area B, 3rd Floor, 13 Building, Software Town, Shenzhen Dayun, 8288 Longgang Avenue, Yuanshan Street, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN MAIKANGYI MEDICAL ROBOT CO.,LTD. |