CN202840844U - EMC protection device of motor - Google Patents
EMC protection device of motor Download PDFInfo
- Publication number
- CN202840844U CN202840844U CN2012204245019U CN201220424501U CN202840844U CN 202840844 U CN202840844 U CN 202840844U CN 2012204245019 U CN2012204245019 U CN 2012204245019U CN 201220424501 U CN201220424501 U CN 201220424501U CN 202840844 U CN202840844 U CN 202840844U
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- motor
- filter
- housing
- emc
- filter capacitor
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Abstract
The utility model discloses an EMC protection device of a motor comprising a plurality of pairs of filter inductors and filter capacitors. A filter circuit can be formed by connecting the filter capacitors with the corresponding filter inductors and the motor. The utility model is characterized in that the filter inductors are disposed in a housing of the motor, and the filter capacitors are disposed on a circuit board, and disposed on outer sides of the filter inductors. By using the circuit board, the filter capacitors can be disposed on the circuit board, therefore the integral structure has a good stability, all components are not easy to damage, and the protection performance of the electromagnetic compatibility can be improved by disposing the capacitors on the outer sides of the inductors. The EMC protection device has advantages of reasonable layout, beautiful appearance, good stability, convenient assembly, and small space occupation.
Description
Technical field
The utility model relates to motor EMC technical field, specifically a kind of EMC protector of motor.
Background technology
Electro Magnetic Compatibility EMC(Electro Magnetic Compatibility), refer to that the operation that meets the requirements of equipment or system does not produce the ability of intolerable electromagnetic interference to any equipment in its environment in its electromagnetic environment.Therefore, EMC comprises the requirement of two aspects: the equipment that refers on the one hand can not surpass certain limit value to the electromagnetic interference that the place environment produces in normal course of operation; Refer to that on the other hand utensil has to a certain degree immunity to interference, i.e. electromagnetic susceptibility to the electromagnetic interference that exists in the environment of place.Social automobile has become the requisite the same vehicles of people now, energy-saving and emission-reduction also become a theme of society, therefore each parts producer all constantly reduces small product size and weight, and now a large amount of uses of each electronic product etc., all kinds of electromagnetism also constantly increase motor and the motor electromagnetic interference to each electronic product, the size of electromagnetism antijamming capability has become judges the good important references project of motor performance, therefore need to be at the device of motor configuration anti-electromagnetic wave interference, i.e. EMC device.
Disturb in order to make the EMC device have good anti-electromagnetic wave, the filter inductance of a pair of mutual series connection in parallel at least and electric capacity in the EMC loop, along with shaking the future development of window motor towards the small and exquisite grade of volume, therefore very limited of inner space, make electric capacity and motor short circuit, must allow electric capacity between motor and inductance, line map as shown in Figure 3, but this connected mode meeting is so that electromagnetic compatible protective is not good enough, and each parts stationarity is not good, easily loosening distortion, and each parts hook flexibility causes the impact effects such as its fracture more easily, assembly technology is difficult when therefore motor being carried out the EMC protection, and protection effect is general, requires further improvement.
Summary of the invention
Technical problem to be solved in the utility model is the EMC protector that a kind of rationally distributed practicality, motor that whole steadiness is good are provided for the above-mentioned state of the art, so that the electromagnetic compatible protective of motor obtains good improvement, and volume is small and exquisite, easy to assembly.
The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of EMC protector of motor, comprise some to filter inductance and filter capacitor, described filter capacitor and the corresponding filter inductance formation filter circuit that is connected with motor, it is characterized in that: described filter inductance is arranged in the housing of motor, described filter capacitor carrying places the outside of filter inductance in the circuit board.
As improvement, described filter inductance is two, described filter capacitor is corresponding two, the up and down both sides of the end face of described housing offer respectively can be for the storage tank of filter inductance embedding, described filter inductance places respectively storage tank fixing, one end is connected with the both positive and negative polarity of motor respectively, and the other end is connected with separately power source connecting, filter capacitor respectively, and the other end of described filter capacitor is connected with the motor earth terminal.
At last, the middle part of described wiring board offers the centre bore that runs through, the left and right sides of described wiring board offers some connecting holes, the end face of described housing is provided with some joint pins corresponding with connecting hole, described wiring board by centre bore pass motor central shaft, place on the end face of housing, be connected and fixed by Plastic Welding with housing.
Compared with prior art, the utility model has the advantage of: adopt the mode of wiring board with the filter capacitor carrying in the circuit board, so that the overall structure steadiness is good, and each parts is not easy again to be damaged, and can place electric capacity the outside of inductance to strengthen the protective of electromagnetic compatibility again.The rationally distributed steadiness attractive in appearance, whole of the utility model is good, and easy to assembly, space hold is little.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that Fig. 1 is along the structure cutaway view of A-A line;
Fig. 3 is the line map of traditional motor EMC;
Fig. 4 is the line map of EMC of the present utility model.
Embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
Such as Fig. 1, shown in 2, a kind of EMC protector of motor, comprise two pairs of filter inductances 1 and filter capacitor 2, two pairs of filter inductances 1 link to each other with the incoming end of motor respectively with filter capacitor 2 and form two filter circuits, wherein filter capacitor 2 is carried on the wiring board 3, place the outside of filter inductance 1, the up and down both sides of housing 4 end faces of motor offer respectively can be for the storage tank 41 of filter inductance 1 embedding, filter inductance 1 places respectively storage tank 41 fixing, the one end is connected with the both positive and negative polarity of motor respectively, the other end respectively with power source connecting 5 separately, corresponding filter capacitor 2 is connected, the other end of filter capacitor 2 is connected with the motor earth terminal, like this, form two filter circuits; The middle part of wiring board 3 offers the centre bore that runs through, the left and right sides of wiring board 3 offers some connecting holes, the end face of housing 4 is provided with some joint pins corresponding with connecting hole, wiring board by centre bore pass motor central shaft, place on the end face of housing 4, be welded to connect fixing with housing by plastic column 6.
Because filter capacitor 2 is carried on the wiring board 3, so that integrally-built stablizing firmly, each parts stationarity is good, be difficult for loosening distortion or damage, and the space that takies is little, meets volume requirement small and exquisite, easy to assembly like this.Its EMC line map is that with the difference of traditional line map (Fig. 3) filter capacitor 2 is the outsides that place filter inductance 1, has strengthened the protective of electromagnetic compatibility greatly as shown in Figure 4.
The concrete connection of this circuit is as follows:
The two ends that can see upside inductance 1 by Fig. 1 respectively with power source connecting 5 and housing in the brush holder welding form solder joint 1. with solder joint 6.; the two ends of downside inductance 1 respectively with power source connecting 5 and housing in protector stitch welding form solder joint 4. with solder joint 5.; last power source connecting 5 and welding circuit board form solder joint 2. with solder joint 3., the whole circuit that forms as shown in Figure 4.
Claims (3)
1. the EMC protector of a motor, comprise some to filter inductance and filter capacitor, described filter capacitor and the corresponding filter inductance formation filter circuit that is connected with motor, it is characterized in that: described filter inductance is arranged in the housing of motor, described filter capacitor carrying places the outside of filter inductance in the circuit board.
2. EMC protector according to claim 1, it is characterized in that described filter inductance is two, described filter capacitor is corresponding two, the up and down both sides of the end face of described housing offer respectively can be for the storage tank of filter inductance embedding, described filter inductance places respectively storage tank fixing, one end is connected with the both positive and negative polarity of motor respectively, and the other end is connected with separately power source connecting, filter capacitor respectively, and the other end of described filter capacitor is connected with the earth terminal of motor.
3. EMC protector according to claim 2, the middle part that it is characterized in that described wiring board offers the centre bore that runs through, the left and right sides of described wiring board offers some connecting holes, the end face of described housing is provided with some joint pins corresponding with connecting hole, described wiring board by centre bore pass motor central shaft, place on the end face of housing, be welded and fixed by plastic column with housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204245019U CN202840844U (en) | 2012-08-24 | 2012-08-24 | EMC protection device of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204245019U CN202840844U (en) | 2012-08-24 | 2012-08-24 | EMC protection device of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202840844U true CN202840844U (en) | 2013-03-27 |
Family
ID=47952446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204245019U Expired - Lifetime CN202840844U (en) | 2012-08-24 | 2012-08-24 | EMC protection device of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202840844U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210444A (en) * | 2014-09-28 | 2014-12-17 | 博耐尔汽车电气系统有限公司 | EMC (Electro Magnetic Compatibility) improving circuit for vehicle air conditioning blower |
| 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 |
| WO2020151437A1 (en) * | 2019-01-25 | 2020-07-30 | 广东美的白色家电技术创新中心有限公司 | Electronic control assembly and electric appliance |
| CZ309732B6 (en) * | 2018-05-07 | 2023-08-30 | Brano A.S | A DC commutator electric motor |
-
2012
- 2012-08-24 CN CN2012204245019U patent/CN202840844U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210444A (en) * | 2014-09-28 | 2014-12-17 | 博耐尔汽车电气系统有限公司 | EMC (Electro Magnetic Compatibility) improving circuit for vehicle air conditioning blower |
| CZ309732B6 (en) * | 2018-05-07 | 2023-08-30 | Brano A.S | A DC commutator 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 |
| WO2020151437A1 (en) * | 2019-01-25 | 2020-07-30 | 广东美的白色家电技术创新中心有限公司 | Electronic control assembly and electric appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 315177 No.19, Wangxing Road, fengshuigang Industrial Zone, Gulin Town, Haishu District, Ningbo City, Zhejiang Province Patentee after: NINGBO HENGTE AUTOMOBILE PARTS Co.,Ltd. Address before: Yinzhou District ancient town Ningbo city Zhejiang province 315177 Zhenxin Road No. 29 Patentee before: NINGBO HENGTE AUTOMOBILE PARTS Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |