CN104175904B - There is the motor speed-limiting device for electric motor car of amplifying circuit - Google Patents
There is the motor speed-limiting device for electric motor car of amplifying circuit Download PDFInfo
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- CN104175904B CN104175904B CN201410422374.2A CN201410422374A CN104175904B CN 104175904 B CN104175904 B CN 104175904B CN 201410422374 A CN201410422374 A CN 201410422374A CN 104175904 B CN104175904 B CN 104175904B
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- switch element
- motor
- amplifying circuit
- resistance
- controller
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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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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of motor speed-limiting device for electric motor car with amplifying 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 amplifying circuit, comprises triode T1 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 amplifying 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 amplifying 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 amplifying 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 amplifying circuit, comprises threeUtmost point pipe T1 and transport and placing device A1, series capacitance C1 in the base stage of described triode T1, described triodeParallel resistance R4 and capacitor C 4 between the in-phase input end of the emitter stage of T1 and transport and placing device A1, described inSeries capacitance C2 between the inverting input of the colelctor electrode of triode T1 and transport and placing device A1, described amplifierParallel resistance R5 and capacitor C 3 between the output of the inverting input of device A1 and transport and placing device A1.
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 amplifying 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 amplifying 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, amplifying circuit as shown in Figure 3, comprise triode T1 andTransport and placing device A1, series capacitance C1 in the base stage of triode T1, the emitter stage of triode T1 and amplifierParallel resistance R4 and capacitor C 4 between the in-phase input end of device A1, the colelctor electrode of triode T1 withSeries capacitance C2 between the inverting input of transport and placing device A1, the inverting input of transport and placing device A1 and amplifierParallel resistance R5 and capacitor C 3 between the output of 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 amplifying 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 amplifying circuit, comprise triode T1 and transport and placing device A1, series capacitance C1 in the base stage of described triode T1, parallel resistance R4 and capacitor C 4 between the in-phase input end of the emitter stage of described triode T1 and transport and placing device A1, series capacitance C2 between the inverting input of the colelctor electrode of described triode T1 and transport and placing device A1, parallel resistance R5 and capacitor C 3 between the output of the inverting input of described transport and placing device A1 and transport and placing device A1.
2. the motor speed-limiting device for electric motor car with amplifying 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 amplifying 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 |
|---|---|---|---|
| CN201410422374.2A CN104175904B (en) | 2014-08-26 | 2014-08-26 | There is the motor speed-limiting device for electric motor car of amplifying circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410422374.2A CN104175904B (en) | 2014-08-26 | 2014-08-26 | There is the motor speed-limiting device for electric motor car of amplifying circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104175904A CN104175904A (en) | 2014-12-03 |
| CN104175904B true CN104175904B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410422374.2A Active CN104175904B (en) | 2014-08-26 | 2014-08-26 | There is the motor speed-limiting device for electric motor car of amplifying circuit |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1046666B (en) * | 1954-06-10 | 1958-12-18 | Bbc Brown Boveri & Cie | Starting and braking circuit for electric traction vehicles in individual and group travel |
| 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 CN201410422374.2A patent/CN104175904B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1046666B (en) * | 1954-06-10 | 1958-12-18 | Bbc Brown Boveri & Cie | Starting and braking circuit for electric traction vehicles in individual and group travel |
| 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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| Publication number | Publication date |
|---|---|
| CN104175904A (en) | 2014-12-03 |
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Effective date of registration: 20200922 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. |
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