CN106438404A - Vehicle-mounted blast blower with EMC function - Google Patents
Vehicle-mounted blast blower with EMC function Download PDFInfo
- Publication number
- CN106438404A CN106438404A CN201610814052.1A CN201610814052A CN106438404A CN 106438404 A CN106438404 A CN 106438404A CN 201610814052 A CN201610814052 A CN 201610814052A CN 106438404 A CN106438404 A CN 106438404A
- Authority
- CN
- China
- Prior art keywords
- motor
- vehicle
- electric capacity
- emc
- electromotor
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0693—Details or arrangements of the wiring
-
- 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
Abstract
The invention discloses a vehicle-mounted blast blower with an EMC function, comprising an electromotor; an inductor is connected between the positive and negative electrodes of the electromotor and an electric brush part of the electromotor; each of the positive and negative electrodes of the electromotor is connected with a capacitor; and the other end of the capacitor connected to the positive and/or negative electrode of the electromotor is grounded. According to the vehicle-mounted blast blower, electromagnetic interference caused during operation of the electromotor is taken away in the way that the capacitors connected in series to two electrodes of the electromotor are grounded, so that the EMC performance of the electromotor of the blast blower is improved while the capacitors are prevented from being affected by PWM.
Description
Technical field
The present invention relates to vehicle-mounted blower technology field, more particularly to a kind of vehicle-mounted aerator with EMC function.
Background technology
With a large amount of popularizations of vehicle electronic device, requirement of the vehicle to EMC is also increasingly improved therewith.Existing vehicle-mounted sky
Adjust using aerator scheme of the motor all using electric capacity coilloading improving EMC performance.
Two inductance are typically connected on aforesaid EMC scheme the both positive and negative polarity of blower power supply input line respectively, then
It is connected in parallel with a capacitor between power input line both positive and negative polarity, while power line minus earth, absorbs electricity by electric capacity and inductance
The electromagnetic interference for discharging during motivation operating, to reach the purpose for improving EMC.
But, as the speed regulating control of motor is changed to diversified Electronic Control mould by the rheostatic speed regulation of single formula originally
After block (PWM) speed governing, traditional this EMC scheme has not increasingly been suitable for new electronic control unit.
Main reason is that：The high-speed pulse that electronic control unit is discharged can form strong influence to electric capacity, force
Electric capacity sinks into a kind of frequently charge and discharge process, so as to cause electric capacity to occur damage at short notice, and then makes this traditional
Motor EMC failure mechanisms, serious may result in motor damage.
At present, in order to coordinate electronic control module (PWM), the motor of aerator be all generally using double-inductance structure
EMC scheme, eliminates electric capacity and power line minus earth, to avoid impact of the PWM to electric capacity.
But, the adverse consequencess that thus brings are：Cause EMC penalty, conducted emission (EC) portion especially to EMC
Point performance impact and its serious, the limit value of part high band can exceed and require to reach more than 20dB (A).
Content of the invention
In view of the drawbacks described above of prior art, the present invention provides a kind of vehicle-mounted aerator with EMC function, realization
One of purpose is attachment structure of the nationality by the motor for adjusting electric capacity, electric capacity and aerator, is avoiding PWM to the same of capacitive effect
The EMC performance of the motor of Shi Tigao aerator.
For achieving the above object, the invention provides a kind of vehicle-mounted aerator with EMC function, including motor, institute
It is connected inductance, the positive pole of the motor and negative pole between positive pole, negative pole and the brush part of the motor of stating motor
Connect an electric capacity respectively, be connected to the other end ground connection of the positive pole of the motor and/or the electric capacity of negative pole.
Said structure is exactly employed, and motor is transported by nationality by the mode of the capacity earth by motor the two poles of the earth are serially connected in
The electromagnetic interference carrying-off for being sent when turning, improves the EMC of the motor of aerator while avoiding PWM to capacitive effect
Energy.
Preferably, the other end and the motor of the positive pole of the motor and/or the electric capacity of negative pole are connected to
Casing connect to form ground connection.
Nationality forms ground connection by electric capacity to be connected with the casing of the motor, effectively utilizes the casing of ground connection, simplifies knot
Structure, improves range of application.
Preferably, the other end of the electric capacity is connected with the casing of motor by way of welding or clamping.
Preferably, the two ends of the inductance by welding or wire harness clip clamping by way of respectively with the motor and institute
State the connection of brush part.
Preferably, the positive pole of one end of the electric capacity and the motor and/or negative pole are by welding or wire harness clip card
The mode for connecing connects.
Beneficial effects of the present invention：
Nationality of the present invention is avoiding PWM to capacitive effect by the attachment structure of the motor for adjusting electric capacity, inductance and aerator
While improve aerator motor EMC performance.
Below with reference to accompanying drawing, the technique effect of the design, concrete structure and generation of the present invention is described further, with
It is fully understood from the purpose of the present invention, feature and effect.
Description of the drawings
Fig. 1 is illustrated that motor negative pole single capacitor of the present invention is grounded the structural representation of embodiment.
Fig. 2 is illustrated that the structural representation of two capacity earth embodiments of motor positive and negative electrode of the present invention.
Specific embodiment
Embodiment 1
As shown in figure 1, a kind of vehicle-mounted aerator with EMC function, including motor 1；Wherein, the positive pole of motor 1,
It is connected inductance between negative pole and the brush part of motor 1.
The negative pole of motor 1 connects an electric capacity 3, is connected to the other end ground connection of the electric capacity of the negative pole of motor.
The mode that nationality is grounded by electric capacity 3 eliminates the electromagnetic interference for sending during motor operation, while turn avoid the arteries and veins of PWM
Impact of the punching output to electric capacity.
Embodiment 2
As shown in Fig. 2 a kind of vehicle-mounted aerator with EMC function, including motor 1；Wherein, the positive pole of motor 1,
It is connected inductance between negative pole and the brush part of motor 1.
The positive pole of motor 1 and negative pole connect an electric capacity 3 respectively, are connected to the positive pole of motor and two electricity of negative pole
The other end of appearance is all grounded.
The mode that nationality is grounded by electric capacity 3 eliminates the electromagnetic interference for sending during motor operation, while turn avoid the arteries and veins of PWM
Impact of the punching output to electric capacity.
In some preferred embodiments, the positive pole of motor 1 or the other end of negative pole electric capacity 3 and motor is connected to
Casing 2 connection formed ground connection.
Nationality forms ground connection by electric capacity 3 to be connected with the casing 2 of motor, effectively utilizes the casing 2 of ground connection, simplifies knot
Structure, improves range of application.
In some preferred embodiments, the machine of the other end of electric capacity 3 by way of welding or clamping with motor
Shell 2 connects.
In some preferred embodiments, the two ends of inductance by way of welding or wire harness clip clamping respectively with electronic
Machine 1 and the connection of brush part.
In some preferred embodiments, the positive pole of one end of electric capacity 3 and motor 1 and/or negative pole by welding or
The mode of wire harness clip clamping connects.
Gone out as Table 1 and Table 2 below is to employ said structure, the experimental data of the motor after improvement.
The preferred embodiment of the present invention described in detail above.It should be appreciated that one of ordinary skill in the art is no
Need creative work just can make many modifications and variations according to the design of the present invention.Therefore, all technology in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (5)
1. a kind of vehicle-mounted aerator with EMC function, including motor；Characterized in that, the positive pole of the motor, negative pole
It is connected inductance and the brush part of the motor between, the positive pole of the motor and negative pole connect an electric capacity respectively, even
It is connected on the other end ground connection of the positive pole of the motor and/or the electric capacity of negative pole.
2. the vehicle-mounted aerator with EMC function according to claim 1, it is characterised in that be connected to the motor
Positive pole and/or the other end of the electric capacity of negative pole be connected to form ground connection with the casing of the motor.
3. the vehicle-mounted aerator with EMC function according to claim 2, it is characterised in that the other end of the electric capacity
It is connected with the casing of motor by way of welding or clamping.
4. the vehicle-mounted aerator with EMC function according to claim 1 and 2, it is characterised in that the two ends of the inductance
It is connected with the motor and the brush part by way of welding or wire harness clip clamping respectively.
5. the vehicle-mounted aerator with EMC function according to claim 1 and 2, it is characterised in that one end of the electric capacity
It is connected by way of welding or wire harness clip clamping with the positive pole of the motor and/or negative pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610814052.1A CN106438404A (en) | 2016-09-09 | 2016-09-09 | Vehicle-mounted blast blower with EMC function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610814052.1A CN106438404A (en) | 2016-09-09 | 2016-09-09 | Vehicle-mounted blast blower with EMC function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106438404A true CN106438404A (en) | 2017-02-22 |
Family
ID=58168336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610814052.1A Pending CN106438404A (en) | 2016-09-09 | 2016-09-09 | Vehicle-mounted blast blower with EMC function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438404A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057487A (en) * | 2012-12-14 | 2013-04-24 | 芜湖博耐尔汽车电气系统有限公司 | Circuit for improving electromagnetic compatibility of automotive air conditioning fan |
| CN203485707U (en) * | 2013-08-26 | 2014-03-19 | 博耐尔汽车电气系统有限公司 | Circuit structure of automobile air-conditioner blower |
| CN203589934U (en) * | 2013-10-11 | 2014-05-07 | 广州市科奥机电有限公司 | Anti-interference circuit device for automobile air conditioner motor |
| DE102013224458A1 (en) * | 2013-11-28 | 2015-05-28 | Robert Bosch Gmbh | Noise filter for a DC motor and DC motor |
| CN105207416A (en) * | 2014-06-23 | 2015-12-30 | 德昌电机(深圳)有限公司 | Motor grounding connection device |
-
2016
- 2016-09-09 CN CN201610814052.1A patent/CN106438404A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057487A (en) * | 2012-12-14 | 2013-04-24 | 芜湖博耐尔汽车电气系统有限公司 | Circuit for improving electromagnetic compatibility of automotive air conditioning fan |
| CN203485707U (en) * | 2013-08-26 | 2014-03-19 | 博耐尔汽车电气系统有限公司 | Circuit structure of automobile air-conditioner blower |
| CN203589934U (en) * | 2013-10-11 | 2014-05-07 | 广州市科奥机电有限公司 | Anti-interference circuit device for automobile air conditioner motor |
| DE102013224458A1 (en) * | 2013-11-28 | 2015-05-28 | Robert Bosch Gmbh | Noise filter for a DC motor and DC motor |
| CN105207416A (en) * | 2014-06-23 | 2015-12-30 | 德昌电机(深圳)有限公司 | Motor grounding connection device |
Non-Patent Citations (1)
| Title |
|---|
| 贾继伟等: "《通信电源的科学管理与集中监控》", 2004083, 人民邮电出版社 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 201206 Shanghai City, Pudong New Area Chinese Longqiao Road (Shanghai) Free Trade Zone No. 355 Applicant after: Shanghai Thermal System Co., Ltd. Address before: 201206 Shanghai city Pudong New Area Longqiao Road No. 355 Applicant before: Shanghai Behr Thermal Systems Co., Ltd. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |