CN104228608B - There is the motor speed-limiting device for electric motor car of sample circuit - Google Patents
There is the motor speed-limiting device for electric motor car of sample circuit Download PDFInfo
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- CN104228608B CN104228608B CN201410422295.1A CN201410422295A CN104228608B CN 104228608 B CN104228608 B CN 104228608B CN 201410422295 A CN201410422295 A CN 201410422295A CN 104228608 B CN104228608 B CN 104228608B
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- switch element
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- electrical box
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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
- Y02T10/72—Electric energy management in electromobility
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- Control Of Electric Motors In General (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a kind of motor speed-limiting device for electric motor car with sample circuit, comprise motor casing and be arranged on the electrical box of motor casing inwall, in described electrical box, cover plate is set, the radius of the radian of this cover plate is identical with the radius of the radian of motor casing, in described electrical box, control circuit is set, and described control circuit is installed to after electrical box, cover plate and motor casing are welded together, and described control circuit comprises Hall current sensor, controller, the first switch element, second switch element and resistance. Between Hall current sensor and controller, connect successively sample circuit, filter circuit and amplifying circuit, described sample circuit, comprise transport and placing device A1, the in-phase input end of described transport and placing device A1 is connected with one end of resistance R 1, the other end ground connection of this resistance R 1, series capacitance C2 between the output of the in-phase input end of described transport and placing device A1 and transport and placing device A1. Reach the object of avoiding artificially changing electric motor car speed-limiting device.
Description
Technical field
The present invention relates to a kind of motor speed-limiting device for electric motor car with sample circuit.
Background technology
At present, along with the attention of people's environmental pollution, electric motor car becomes many people's walking-replacing tool,But do not have unification in China, electric motor car is divided into motor vehicle, therefore the maximum speed of electric motor car is hadClear and definite restriction, but in use have the problem that speed-limiting device is changed, and generally deposit, the attraction that even becomes electric motor car having, but bring very large safety hidden to the change of speed-limiting deviceSuffer from, along with increasing of electric motor car, electric motor car is also increasing because of the traffic accident that excessive velocities causes.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose a kind of have sample circuit for electricityThe motor speed-limiting device of motor-car, to realize the advantage of avoiding artificially changing electric motor car speed-limiting device.
For achieving the above object, the technical solution used in the present invention is:
A motor speed-limiting device for electric motor car with sample circuit, comprises motor casing and establishesPut the electrical box at motor casing inwall, in described electrical box, cover plate be set, the radius of the radian of this cover plate withThe radius of the radian of motor casing is identical, in described electrical box, control circuit is set, and described control circuit peaceInstall to after electrical box, cover plate and motor casing are welded together, described control circuit comprises Hall currentSensor, controller, the first switch element, second switch element and resistance, described Hall current passesSensor is arranged on the wire of connecting motor coil and power supply, and between motor coil and power supply, arrangesOne switch element, the current information of collection is transferred to controller by described Hall current sensor, described inThe series connection of second switch element and resistance, and the series circuit that is composed in series of second switch element and resistance withThe first switch element parallel connection, in the time that the current information of Hall current sensor collection equals setting signal,Controller control the first switch element cut-off, and this controller control second switch element conductive, therebyBy resistance, the electric current between power supply and motor coil is shunted; Described Hall current sensor and controlBetween device processed, connect successively sample circuit, filter circuit and amplifying circuit, described sample circuit, comprises fortunePut device A1, the in-phase input end of described transport and placing device A1 is connected with one end of resistance R 1, this resistance R 1Other end ground connection, between the output of the in-phase input end of described transport and placing device A1 and transport and placing device A1, go here and thereConnection capacitor C 2.
Preferably, described controller adopts dsp chip.
Preferably, described the first switch element, second switch element all adopt FET.
Technical scheme of the present invention has following beneficial effect:
Technical scheme of the present invention, is connected motor coil by a wire with power supply, and logicalCross the electric current on the wire of connecting motor coil and power supply is gathered, thereby the rotating speed of motor is enteredRow limits, and control circuit is arranged in electrical box, and by the mode welded cover plate of welding, as rightControl circuit is changed, and will destroy motor, thereby motor is caused to damage, thereby restriction is to controlThe change of circuit processed, reaches the object of avoiding artificially changing electric motor car speed-limiting device. Below by accompanying drawingAnd embodiment, technical scheme of the present invention is described in further detail.
Brief 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 sample circuit described in the embodiment of the present invention.
By reference to the accompanying drawings, in the embodiment of the present invention, Reference numeral is as follows:
1-motor casing; 2-cover plate; 3-wire; 4-electrical box.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that this place retouchesThe preferred embodiment of stating only, for description and interpretation the present invention, is not intended to limit the present invention.
As depicted in figs. 1 and 2, a kind of motor speed-limiting device for electric motor car with sample circuit,Comprise motor casing and be arranged on the electrical box of motor casing inwall, cover plate is set in electrical box, this cover plateRadius of the radian identical with the radius of the radian of motor casing, control circuit is set in electrical box, and control electricityRoad is installed to after electrical box, and cover plate and motor casing are welded together, and control circuit comprises Hall currentSensor, controller, the first switch element, second switch element and resistance, Hall current sensorBe arranged on the wire of connecting motor coil and power supply, and between motor coil and power supply, arrange first and openClose element, the current information of collection is transferred to controller by Hall current sensor, second switch elementWith resistance series connection, and second switch element and the resistance series circuit and the first switch element that are composed in seriesParallel connection, in the time that the current information of Hall current sensor collection equals setting signal, controller controlOne switch element cut-off, and this controller control second switch element conductive, thus by resistance by electricityElectric current between source and motor coil is shunted; Between Hall current sensor and controller, series connection is adopted successivelySample circuit, filter circuit and amplifying circuit, sample circuit as shown in Figure 3, comprises transport and placing device A1,The in-phase input end of described transport and placing device A1 is connected with one end of resistance R 1, the other end of this resistance R 1Ground connection, series capacitance C2 between the output of the in-phase input end of transport and placing device A1 and transport and placing device A1.
Preferably, controller adopts dsp chip.
Preferably, the first switch element, second switch element all adopt FET.
In electrical box, infrared sensor is set, in the time having people to remove cover plate, infrared sensor detects simultaneouslyTo signal, thereby detection signal is transferred to dsp chip, dsp chip will carry out the number of times of removingLimit, and by the positioning chip that is connected with dsp chip by the locating information of dismounting and the number of times of dismountingRemain in the memory being connected with dsp chip, for later stage inquiry.
And shunt resistance in control circuit adopts swept resistance, the slip wiring point of this swept resistance is logicalCross controller and stepper motor is controlled, the resistance of swept resistance is carried out really according to the operating current of motorFixed, in the time that foreign current increases, swept resistance resistance increases, thereby the Current Limits of motor is fixed on and establishedIn fixed scope, limit the rotating speed of motor.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, and be not used inRestriction the present invention, although have been described in detail the present invention with reference to previous embodiment, for abilityThe technical staff in territory, its technical scheme that still can record aforementioned each embodiment is repaiiedChange, or part technical characterictic is wherein equal to replacement. All the spirit and principles in the present invention itIn, any amendment of doing, be equal to replacement, improvement etc., all should be included in protection scope of the present inventionWithin.
Claims (3)
1. one kind has the motor speed-limiting device for electric motor car of sample circuit, comprise motor casing and be arranged on the electrical box of motor casing inwall, it is characterized in that, in described electrical box, cover plate is set, the radius of the radian of this cover plate is identical with the radius of the radian of motor casing, in described electrical box, control circuit is set, and described control circuit is installed to after electrical box, cover plate and motor casing are welded together, described control circuit comprises Hall current sensor, controller, the first switch element, second switch element and resistance, described Hall current sensor is arranged on the wire of connecting motor coil and power supply, and the first switch element is set between motor coil and power supply, the current information of collection is transferred to controller by described Hall current sensor, described second switch element and resistance series connection, and the series circuit that second switch element and resistance are composed in series is in parallel with the first switch element, in the time that the current information of Hall current sensor collection equals setting signal, controller control the first switch element cut-off, and this controller control second switch element conductive, thereby by resistance, the electric current between power supply and motor coil is shunted, between described Hall current sensor and controller, connect successively sample circuit, filter circuit and amplifying circuit, described sample circuit, comprise transport and placing device A1, the in-phase input end of described transport and placing device A1 is connected with one end of resistance R 1, the other end ground connection of this resistance R 1, series capacitance C2 between the output of the in-phase input end of described transport and placing device A1 and transport and placing device A1.
2. the motor speed-limiting device for electric motor car with sample circuit according to claim 1, is characterized in that, described controller adopts dsp chip.
3. the motor speed-limiting device for electric motor car with sample circuit according to claim 1 and 2, is characterized in that, described the first switch element, second switch element all adopt FET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410422295.1A CN104228608B (en) | 2014-08-26 | 2014-08-26 | There is the motor speed-limiting device for electric motor car of sample circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410422295.1A CN104228608B (en) | 2014-08-26 | 2014-08-26 | There is the motor speed-limiting device for electric motor car of sample circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104228608A CN104228608A (en) | 2014-12-24 |
| CN104228608B true CN104228608B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410422295.1A Active CN104228608B (en) | 2014-08-26 | 2014-08-26 | There is the motor speed-limiting device for electric motor car of sample circuit |
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| Country | Link |
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| CN (1) | CN104228608B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547577B (en) * | 2016-02-03 | 2018-12-07 | 河南柴油机重工有限责任公司 | A kind of signal sampling guard method and protection circuit for pressure transmitter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0600465A1 (en) * | 1989-02-28 | 1994-06-08 | Suzuki Motor Corporation | Apparatus for controlling an electric motor car |
| GB2357163A (en) * | 1999-09-21 | 2001-06-13 | Sturdy Francis Nagle & Co Ltd | Electric motor power control device |
| CN2456958Y (en) * | 2000-12-10 | 2001-10-31 | 陈福春 | Speed regulator of battery truck |
| CN200974476Y (en) * | 2006-11-23 | 2007-11-14 | 东风电动车辆股份有限公司 | DC brush motor controller |
| CN102689592A (en) * | 2012-06-19 | 2012-09-26 | 沛县伟达电动车制造厂 | Speed-limiting system for circuits of electric power automobile |
| CN202573852U (en) * | 2012-03-22 | 2012-12-05 | 山东山推机械有限公司 | Electric tractor forward and backward inching control device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005323434A (en) * | 2004-05-07 | 2005-11-17 | Moric Co Ltd | Electric vehicle |
| US7454127B2 (en) * | 2004-10-19 | 2008-11-18 | Continental Automotive Systems Us, Inc. | Multi-speed motor system combining at least a one speed electric motor, series resistor and power switches |
-
2014
- 2014-08-26 CN CN201410422295.1A patent/CN104228608B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0600465A1 (en) * | 1989-02-28 | 1994-06-08 | Suzuki Motor Corporation | Apparatus for controlling an electric motor car |
| GB2357163A (en) * | 1999-09-21 | 2001-06-13 | Sturdy Francis Nagle & Co Ltd | Electric motor power control device |
| CN2456958Y (en) * | 2000-12-10 | 2001-10-31 | 陈福春 | Speed regulator of battery truck |
| CN200974476Y (en) * | 2006-11-23 | 2007-11-14 | 东风电动车辆股份有限公司 | DC brush motor controller |
| CN202573852U (en) * | 2012-03-22 | 2012-12-05 | 山东山推机械有限公司 | Electric tractor forward and backward inching control device |
| CN102689592A (en) * | 2012-06-19 | 2012-09-26 | 沛县伟达电动车制造厂 | Speed-limiting system for circuits of electric power automobile |
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| CN104228608A (en) | 2014-12-24 |
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Effective date of registration: 20200923 Address after: 244000 Room 501, building C2, Beidou Star City, Tongling City, Anhui Province Patentee after: Tongling xinxinxiang e-commerce 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. |