CN104184252B - The motor speed limit device for electric motor car with filter circuit - Google Patents
The motor speed limit device for electric motor car with filter circuit Download PDFInfo
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- CN104184252B CN104184252B CN201410422343.7A CN201410422343A CN104184252B CN 104184252 B CN104184252 B CN 104184252B CN 201410422343 A CN201410422343 A CN 201410422343A CN 104184252 B CN104184252 B CN 104184252B
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- 230000005611 electricity Effects 0.000 claims description 4
- 230000005669 field effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Control Of Electric Motors In General (AREA)
Abstract
The invention discloses a kind of motor speed limit device for electric motor car with filter circuit, including motor casing and it is arranged on the electrical box of motor casing inwall, in the electrical box, cover plate is set, the radius of the radian of the cover plate is identical with the radius of the radian of motor casing, control circuit is set in the electrical box, and after the control circuit is installed to electrical box, cover plate and motor casing are welded together, the control circuit includes Hall current sensor, controller, first switch element, second switch element and resistance.Sample circuit, filter circuit and amplifying circuit, the filter circuit, including transport and placing device A1, electric capacity C1, electric capacity C2 and electric capacity C3 are sequentially connected in series between Hall current sensor and controller.Reach the purpose for avoiding artificially changing electric motor car speed-limiting device.
Description
Technical field
The present invention relates to a kind of motor speed limit device for electric motor car with filter circuit.
Background technology
At present, with the attention of people's environmental pollution, electric motor car becomes the walking-replacing tool of many people, but in China not
Have it is unified electric motor car is divided into into motor vehicles, therefore have clearly restriction to the maximum speed of electric motor car, but in use
There is a problem of being modified speed-limiting device, and generally existing, attraction having or even becoming electric motor car, but to speed-limiting device
Change bring very big potential safety hazard, with increasing for electric motor car, electric motor car is also increasing because of the traffic accident that excessive velocities are caused.
The content of the invention
It is an object of the present invention to be directed to the problems referred to above, a kind of motor for electric motor car with filter circuit is proposed
Speed-limiting device, to realize avoiding artificially changing the advantage of electric motor car speed-limiting device.
For achieving the above object, the technical solution used in the present invention is：
A kind of motor speed limit device for electric motor car with filter circuit, including motor casing and it is arranged on motor casing
The electrical box of inwall, arranges cover plate in the electrical box, and the radius of the radian of the cover plate is identical with the radius of the radian of motor casing, described
Control circuit is set in electrical box, and after the control circuit is installed to electrical box, cover plate and motor casing is welded together, institute
Stating control circuit includes Hall current sensor, controller, first switch element, second switch element and resistance, the Hall
Current sensor is arranged on the wire of connecting motor coil and power supply, and first switch unit is arranged between motor coil and power supply
The current information of collection is transferred to controller, the second switch element and resistant series by part, the Hall current sensor,
And the series circuit and first switch element in parallel of second switch element and resistant series composition, when Hall current sensor is gathered
Current information when being equal to setting signal, controller control first switch element cut-off, and controller control second switch unit
Part is turned on, and shunts the electric current between power supply and motor coil so as to pass through resistance；The Hall current sensor and control
Sample circuit, filter circuit and amplifying circuit, the filter circuit, including transport and placing device A1, electric capacity C1, electric capacity are sequentially connected in series between device
The in-phase input end of C2 and electric capacity C3, the transport and placing device A1 is sequentially connected in series resistance R1 and resistance R2, the electric capacity C1 and electric capacity C2
Series connection, is series resistance between the in-phase input end of b nodes, the b nodes and transport and placing device A1 between the electric capacity C1 and electric capacity C2
R5, one end of the electric capacity C1 are connected with b nodes, other end series resistance R4 of the electric capacity C1, one end of the electric capacity C2
It is connected with b nodes, other end series resistance R3 of the electric capacity C2, and the resistance R4 and resistance R3 series connection, resistance R4 and electricity
It is series capacitance C3 between the in-phase input end of c nodes, the c nodes and transport and placing device A1 between resistance R3.
Preferably, the controller adopts dsp chip.
Preferably, the first switch element, second switch element adopt field effect transistor.
Technical scheme has the advantages that：
Motor coil and power supply are attached by technical scheme by a wire, and by connection electricity
Electric current on the wire of machine coil and power supply is acquired, and so as to be defined to the rotating speed of motor, and control circuit is arranged on
In electrical box, and the welded cover plate by way of welding, such as control circuit is modified it is necessary to destroy motor, so as to electricity
Machine causes to damage, and so as to limit the change to control circuit, reaches the purpose for avoiding artificially changing electric motor car speed-limiting device.Below
By drawings and Examples, technical scheme is described in further detail.
Description of the drawings
Fig. 1 is the motor housing structural representation for electric motor car described in the embodiment of the present invention；
Fig. 2 is the theory diagram of the control circuit described in the embodiment of the present invention；
Fig. 3 is the electrical circuit diagram of the filter circuit described in the embodiment of the present invention.
With reference to accompanying drawing, in the embodiment of the present invention, reference is as follows：
1- motor casings；2- cover plates；3- wires；4- electrical box.
Specific embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein
Apply example and be merely to illustrate and explain the present invention, be not intended to limit the present invention.
As depicted in figs. 1 and 2, a kind of motor speed limit device for electric motor car with filter circuit, including motor casing
And the electrical box of motor casing inwall is arranged on, cover plate, the radius of the radian of the cover plate and the radian of motor casing are set in electrical box
Radius is identical, arranges control circuit, and after control circuit is installed to electrical box, cover plate and motor casing are welded on one in electrical box
Rise, control circuit includes Hall current sensor, controller, first switch element, second switch element and resistance, Hall current
Sensor is arranged on the wire of connecting motor coil and power supply, and first switch element is arranged between motor coil and power supply,
The current information of collection is transferred to controller, second switch element and resistant series, and second switch by Hall current sensor
The series circuit and first switch element in parallel of element and resistant series composition, when the current information of Hall current sensor collection
During equal to setting signal, controller control first switch element cut-off, and the controller controls second switch element conductive, so as to
The electric current between power supply and motor coil is shunted by resistance；Sampling is sequentially connected in series between Hall current sensor and controller
Circuit, filter circuit and amplifying circuit, filter circuit as shown in figure 3, including transport and placing device A1, electric capacity C1, electric capacity C2 and electric capacity C3,
The in-phase input end of transport and placing device A1 is sequentially connected in series resistance R1 and resistance R2, electric capacity C1 and electric capacity C2 series connection, electric capacity C1 and electric capacity C2
Between for b nodes, b nodes and transport and placing device A1 in-phase input end between series resistance R5, one end of electric capacity C1 is connected with b nodes,
Other end series resistance R4 of electric capacity C1, one end of electric capacity C2 are connected with b nodes, other end series resistance R3 of electric capacity C2, and
Resistance R4 and resistance R3 series connection, between the in-phase input end of c nodes, the c nodes and transport and placing device A1 between resistance R4 and resistance R3
Series capacitance C3.
Preferably, controller adopts dsp chip.
Preferably, first switch element, second switch element adopt field effect transistor.
Infrared sensor is set in electrical box simultaneously, when someone removes cover plate, infrared sensor detects signal, so as to
Detection signal is transferred to into dsp chip, dsp chip will be defined to the number of times removed, and by determining for being connected with dsp chip
Position chip remains to the location information of dismounting and the number of times removed in the memorizer being connected with dsp chip, inquires about for the later stage.
And the shunt resistance in control circuit adopts swept resistance, the slip wiring point of the swept resistance by controller and
Controlling, the resistance of swept resistance is determined motor according to the operating current of motor, when foreign current increases, slides
Resistance increases, so as to the electric current of motor to be limited to the rotating speed that motor is limited in the range of setting.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to,
Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, which still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic.
All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in the present invention's
Within protection domain.
Claims (3)
1. a kind of motor speed limit device for electric motor car with filter circuit, including motor casing and it is arranged in motor casing
The electrical box of wall, it is characterised in that cover plate is set in the electrical box, the radius of the radian of the cover plate and the radius of the radian of motor casing
It is identical, control circuit is set in the electrical box, and after the control circuit is installed to electrical box, cover plate and motor casing is welded
Together, the control circuit includes Hall current sensor, controller, first switch element, second switch element and resistance,
The Hall current sensor is arranged on the wire of connecting motor coil and power supply, and the is arranged between motor coil and power supply
The current information of collection is transferred to controller by one switch element, the Hall current sensor, the second switch element and
Resistant series, and the series circuit and first switch element in parallel of second switch element and resistant series composition, work as Hall current
When the current information of sensor acquisition is equal to setting signal, controller control first switch element cut-off, and controller control
Electric current between power supply and motor coil is shunted by second switch element conductive so as to pass through resistance；The Hall current is passed
It is sequentially connected in series sample circuit, filter circuit and amplifying circuit between sensor and controller, the filter circuit, including transport and placing device A1,
Electric capacity C1, electric capacity C2 and electric capacity C3, the in-phase input end of the transport and placing device A1 are sequentially connected in series resistance R1 and resistance R2, the electric capacity
C1 and electric capacity C2 series connection, is the in-phase input end of b nodes, the b nodes and transport and placing device A1 between the electric capacity C1 and electric capacity C2
Between series resistance R5, one end of the electric capacity C1 is connected with b nodes, other end series resistance R4 of the electric capacity C1, the electricity
The one end for holding C2 is connected with b nodes, other end series resistance R3 of the electric capacity C2, and the resistance R4 and resistance R3 series connection,
It is series capacitance C3 between the in-phase input end of c nodes, the c nodes and transport and placing device A1 between resistance R4 and resistance R3.
2. the motor speed limit device for electric motor car with filter circuit according to claim 1, it is characterised in that institute
State controller and adopt dsp chip.
3. the motor speed limit device for electric motor car with filter circuit according to claim 1 and 2, its feature exist
In the first switch element, second switch element adopt field effect transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410422343.7A CN104184252B (en) | 2014-08-26 | 2014-08-26 | The motor speed limit device for electric motor car with filter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410422343.7A CN104184252B (en) | 2014-08-26 | 2014-08-26 | The motor speed limit device for electric motor car with filter circuit |
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| Publication Number | Publication Date |
|---|---|
| CN104184252A CN104184252A (en) | 2014-12-03 |
| CN104184252B true CN104184252B (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410422343.7A Active CN104184252B (en) | 2014-08-26 | 2014-08-26 | The motor speed limit device for electric motor car with filter circuit |
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| CN (1) | CN104184252B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0444672A1 (en) * | 1990-02-28 | 1991-09-04 | Suzuki Motor Corporation | Speed controller of electric-motor vehicle |
| CN101783548A (en) * | 2010-03-05 | 2010-07-21 | 大连天元电机股份有限公司 | Manufacturing process of generator stator and rotor junction box |
| CN202778703U (en) * | 2012-08-30 | 2013-03-13 | 沈阳隆基电磁科技股份有限公司 | Oil cooling type electromagnetic iron remover connecting box |
| CN203787024U (en) * | 2014-03-13 | 2014-08-20 | 深圳市瑞亚欧智能技术有限公司 | Instrument seal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0270205A (en) * | 1988-08-31 | 1990-03-09 | Shin Kobe Electric Mach Co Ltd | Speed controller for electric car |
| JP2005323434A (en) * | 2004-05-07 | 2005-11-17 | Moric Co Ltd | Electric vehicle |
-
2014
- 2014-08-26 CN CN201410422343.7A patent/CN104184252B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0444672A1 (en) * | 1990-02-28 | 1991-09-04 | Suzuki Motor Corporation | Speed controller of electric-motor vehicle |
| CN101783548A (en) * | 2010-03-05 | 2010-07-21 | 大连天元电机股份有限公司 | Manufacturing process of generator stator and rotor junction box |
| CN202778703U (en) * | 2012-08-30 | 2013-03-13 | 沈阳隆基电磁科技股份有限公司 | Oil cooling type electromagnetic iron remover connecting box |
| CN203787024U (en) * | 2014-03-13 | 2014-08-20 | 深圳市瑞亚欧智能技术有限公司 | Instrument seal |
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| Publication number | Publication date |
|---|---|
| CN104184252A (en) | 2014-12-03 |
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Effective date of registration: 20200918 Address after: No.1, 4th floor, building a, No.88, Beijing East Road, Taicang Development Zone, Suzhou City, Jiangsu Province Patentee after: SUZHOU MULTITECH AUTOMATION EQUIPMENT Co.,Ltd. Address before: 214000 Jiangsu Province, Wuxi city Xishan District Yangjian Town Industrial Park B District Patentee before: WUXI XINSHILI MOTOR TECHNOLOGY Co.,Ltd. |
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