CN201185382Y - Permanent magnet DC brushless motor for changing rail of electrified railroad - Google Patents
Permanent magnet DC brushless motor for changing rail of electrified railroad Download PDFInfo
- Publication number
- CN201185382Y CN201185382Y CNU2008201110850U CN200820111085U CN201185382Y CN 201185382 Y CN201185382 Y CN 201185382Y CN U2008201110850 U CNU2008201110850 U CN U2008201110850U CN 200820111085 U CN200820111085 U CN 200820111085U CN 201185382 Y CN201185382 Y CN 201185382Y
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- China
- Prior art keywords
- permanent magnet
- brushless motor
- electric railway
- control chip
- motor
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Abstract
The utility model discloses a permanent magnet brushless DC motor used for rail replacement of an electrified railway, which consists of a rotating shaft, a rotor core and a multi-polar magnetic ring arranged at the rear end of the rotating shaft. A Hall sensor is arranged on the surface of the magnetic ring and is controlled by a controller. The adoption of the Hall sensor and the multi-polar magnetic ring dispenses with mechanical switch, causes no sparks, does not interfere with surrounding electronic equipment, produces low noise, avoids the abrasion between the carbon brush and the commutator and requires no maintenance, and the reliability is high.
Description
Technical field
The utility model relates to the electric railway power set that switch tracks, and more precisely is that electric railway switches tracks and uses permanent magnet DC brushless motor.
Background technology
Along with the progress and the expanding economy of society, the anxiety of the energy, the demand of environmental protection, the green traffic instrument grows up gradually.The hub-type drive motors of present electric vehicles, by storage battery power supply, the general employing has brush DC motor, brushless DC motor or AC asynchronous motor, and powered vehicle is used as power.
Prior art is:
A. adopt the wheel hub motor that has the brush DC motor to make electric vehicles, its structure is made up of strutting pieces such as stator, rotor and front and rear covers, dress work winding in the stator core slot, iron core endoporus dress commutator and carbon brush component; Paste the permanent magnet magnetic shoe in the rotor yoke, become rotor yoke outer surface and aluminium wheel hub to match.Adopt DC power supply (storage battery) directly to drive.
B. adopt brushless DC motor to make the wheel hub motor of electric vehicles, its structure is made up of strutting pieces such as stator, rotor and front and rear covers, dress work winding in the stator core slot; The end of winding is installed hall sensor and is used for the detection rotor magnetic field position, and output pulse signal is as the commutation signal of winding; The rotor yoke inner surface is pasted the permanent magnet magnetic shoe, and rotor yoke outer surface and aluminium wheel hub match.Adopt DC power supply (storage battery) power supply, drive by electronic commutation.
C. adopt AC asynchronous motor to make the wheel hub motor of electric vehicles, its structure is made up of strutting pieces such as stator, rotor and front and rear covers, dress work winding in the stator core slot; Adopt the die casting mode to be cast with mouse cage aluminium winding in the rotor core groove, rotor yoke outer surface and aluminium wheel hub match.Adopt DC power supply (storage battery) power supply, by DC-DC inverter controlling and driving.
The shortcoming of prior art:
A. adopt brush DC motor scheme is arranged.During motor work, on the one hand, carbon brush and commutator carry out Mechanical Contact, and noise is big, produces electric spark, electromagnetic interference, and efficient is low, and the carbon brush wearing and tearing need to safeguard and change that the wearing and tearing of commutator face degenerate the motor runnability that make that the life-span short, reliability is low.On the other hand, permanent magnet magnetic shoe (rare earth material) costs an arm and a leg, current market price sound of laughing 320～350 yuan/kilogram, product cost height, and magnetic shoe bonding difficulty, manufacturability is poor, quality is difficult for guaranteeing.Stator winding rule difficulty, manual operation, labour intensity is big.
B. adopt the brushless DC motor scheme.Owing to also be to use permanent magnet magnetic shoe (rare earth material) to make magnetic source, there is the product cost height equally, and magnetic shoe bonding difficulty, manufacturability is poor, and quality is difficult for guaranteeing the defective that reliability is low.Stator winding rule difficulty, manual operation, labour intensity is big.
C. adopt the AC asynchronous motor scheme.Owing to make hub-type, the space is restricted, electric motor rotor aluminium casting die casting difficulty, and quality is difficult for assurance, and power is done not quite, and rotor resistance is big, and rotor loss and iron loss are big, and product efficiency is low.Product operation control difficulty, the cost height.Stator winding rule difficulty, manual operation, labour intensity is big.
The utility model content
Technical problem to be solved in the utility model provides a kind of carbon brush and commutator wear of not existing, and is non-maintaining, the reliability height, and no-spark, the electric railway of low noise switches tracks and uses permanent magnet DC brushless motor.
In order to address the above problem, the utility model is taked following technical scheme:
A kind of electric railway switches tracks and uses permanent magnet DC brushless motor, comprises that rotating shaft, rotor core, described rotating shaft tail end settle multi-pole magnet-ring, in the mounted on surface of described magnet ring hall sensor is arranged, and described hall sensor is controlled by controller.
Described hall sensor has three, distributes by 120 degree electric angles.
On described rotor core, be covered with rare earth permanent-magnetic material.
Described controller includes a frequency signal that described hall sensor biography is come and converts the conversion chip that voltage signal is transferred to control chip to, the bridge power converter drive circuit control armature winding of described control chip by being made up of six field effect transistor.
Be connected with the potentiometer of an adjustable voltage between described control chip and the described conversion chip.
Described control chip connects described bridge power converter drive circuit by a current sampling resistor.
The rotating control pin of described control chip connects the switch that a control motor is realized rotating.
Described control chip connects a switch of motor being braked protection.
The beneficial effects of the utility model are: adopt the design of hall sensor and multi-pole magnet-ring, cancelled mechanical commutation, no-spark is not disturbed peripheral electronic equipment, low noise; There are not the wearing and tearing of carbon brush and commutator, non-maintaining, the reliability height.
Description of drawings
Fig. 1 is the structural representation of embodiment;
Fig. 2 is the circuit diagram of controller.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
With reference to Fig. 1, a kind of electric railway switches tracks and uses permanent magnet DC brushless motor, comprises stator 4, bearing 2, front end housing 3, rotor 1, rear end cap 6, back cover 7, rotating shaft 12 and rotor core 11.Described rotating shaft 8 tail ends are mounted with multi-pole magnet-ring 9, in the mounted on surface of described magnet ring 9 three hall sensors 8 are arranged, and described hall sensor 8 distributes by 120 degree electric angles.On described rotor core 11, be covered with rare earth permanent-magnetic material 5, the magnetic energy product of rare earth magnetic steel (BH) max height, its value reaches 31～35MGOe, and power of motor density is big, and volume is little; Electric efficiency is high by 10～15%, energy savings.
Described hall sensor 8 is by 10 controls of the controller among Fig. 1.
With reference to Fig. 2, described controller 10 includes one with three hall sensors, the H among Fig. 2
U, H
V, H
WThe frequency signal that biography is come converts the conversion chip IC1 that voltage signal is transferred to control chip IC2 to, described control chip IC2 passes through by six field effect transistor, be respectively the bridge power converter drive circuit control armature winding that field effect transistor D1, D2, D3, D4, D5 and D6 form, U among the figure, V, W three phase windings, wherein control chip IC2 connects the D1 grid by resistance R 4, connect the D2 grid by resistance R 5, connect the D3 grid, connect the D4 grid, connect the D5 grid by resistance R 3, connect the D6 grid by resistance R 7 by resistance R 2 by resistance R 6.The H that described conversion chip IC1 connects in the hall sensor by resistance R 1
WChange chip IC 1 and pass through resistance R
11Connect R
12, C
2, K
2Parallel circuits, the two ends of described parallel circuits connect two terminals of control chip IC2 respectively.
Be connected with a potentiometer W1 between described control chip IC2 and the described conversion chip IC1, can carry out the PWM pulse width modulation mode and adjust circuit output voltage, thereby regulate the running speed of motor.
Described control chip IC2 passes through by C3, R9 and current sampling resistor R
SParallel circuits connect described bridge power converter drive circuit, R9 and R
SBetween connect resistance R 9, when the motor overload overcurrent, can block the control signal of chip IC 2 outputs voluntarily, the switch-off power field effect transistor is protected.
The rotating control pin of described control chip IC2 connects the K switch 1 that a control motor is realized rotating, and the K1 motor that closes a switch just changes, motor counter-rotating during its ground connection.
Described control chip IC2 connects one motor is braked the K switch 3 of protection, and motor outage when closing a switch K3 realizes the braking protection.
The main magnet ring of the multi-pole magnet-ring of present embodiment and motor is a coaxial rotation, hall sensor is lived the motion of magnet ring by the motion detection that detects multi-pole magnet-ring, hall sensor converts the frequency signal commentaries on classics that detects to voltage signal by conversion chip IC1, the voltage signal of control chip IC2 and the rotating speed of rotating shaft are directly proportional, conversion chip IC1, control chip IC2 and hall sensor form velocity feedback loop, control the disconnection and the conducting of field effect transistor then by control chip IC2, thereby the energising and the disconnection of control armature winding, thereby control rotating shaft is rotated.
The utility model is realized Electromechanical Design, and is simple to operate, and speed governing is convenient; Cancelled mechanical commutation, adopted the contactless commutation of electronics, no-spark is not disturbed peripheral electronic equipment, low noise; There are not the wearing and tearing of carbon brush and commutator, non-maintaining, the reliability height.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (8)
1, a kind of electric railway switches tracks and uses permanent magnet DC brushless motor, comprise rotating shaft, rotor core, it is characterized in that, described rotating shaft tail end is settled multi-pole magnet-ring, in the mounted on surface of described magnet ring hall sensor is arranged, and described hall sensor is controlled by controller.
2, electric railway according to claim 1 switches tracks and uses permanent magnet DC brushless motor, it is characterized in that, described hall sensor has three, distributes by 120 degree electric angles.
3, electric railway according to claim 1 switches tracks and uses permanent magnet DC brushless motor, it is characterized in that, is covered with rare earth permanent-magnetic material on described rotor core.
4, switch tracks according to each described electric railway among the claim 1-3 and use permanent magnet DC brushless motor, it is characterized in that, described controller includes a frequency signal that described hall sensor biography is come and converts the conversion chip that voltage signal is transferred to control chip to, the bridge power converter drive circuit control armature winding of described control chip by being made up of six field effect transistor.
5, electric railway according to claim 4 switches tracks and uses permanent magnet DC brushless motor, it is characterized in that, is connected with the potentiometer of an adjustable voltage between described control chip and the described conversion chip.
6, electric railway according to claim 4 switches tracks and uses permanent magnet DC brushless motor, it is characterized in that, described control chip connects described bridge power converter drive circuit by a current sampling resistor.
7, electric railway according to claim 4 switches tracks and uses permanent magnet DC brushless motor, it is characterized in that, the rotating control pin of described control chip connects the switch that a control motor is realized rotating.
8, electric railway according to claim 4 switches tracks and uses permanent magnet DC brushless motor, it is characterized in that, described control chip connects a switch of motor being braked protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201110850U CN201185382Y (en) | 2008-04-25 | 2008-04-25 | Permanent magnet DC brushless motor for changing rail of electrified railroad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201110850U CN201185382Y (en) | 2008-04-25 | 2008-04-25 | Permanent magnet DC brushless motor for changing rail of electrified railroad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201185382Y true CN201185382Y (en) | 2009-01-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201110850U Expired - Fee Related CN201185382Y (en) | 2008-04-25 | 2008-04-25 | Permanent magnet DC brushless motor for changing rail of electrified railroad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201185382Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075036A (en) * | 2011-01-26 | 2011-05-25 | 胡磊 | Speed measurement control device for motor |
| CN102480203A (en) * | 2010-11-25 | 2012-05-30 | 沈阳工业大学 | Detection and commutation integrated brushless direct current motor |
| CN102498367A (en) * | 2009-07-31 | 2012-06-13 | 罗伯特·博世有限公司 | Commutated electric drive and method for controlling a commutated electric motor |
| CN103036385A (en) * | 2012-12-05 | 2013-04-10 | 河北首力防爆电机有限公司 | Brushless direct-current (DC) motor |
| CN103840724A (en) * | 2012-11-26 | 2014-06-04 | 沈阳工业大学 | Brushless direct current motor and commutation method thereof |
| WO2015127741A1 (en) * | 2014-02-28 | 2015-09-03 | 深圳市大疆创新科技有限公司 | Motor, cradle head using motor, and photographing apparatus using cradle head |
| CN106849390A (en) * | 2017-04-13 | 2017-06-13 | 浙江贝德泵业有限公司 | A kind of air conditioning pump with permagnetic synchronous motor |
| CN108370208A (en) * | 2015-12-18 | 2018-08-03 | 罗伯特·博世有限公司 | The driving unit of electricity with shell |
| CN109936269A (en) * | 2019-04-04 | 2019-06-25 | 沈阳理工大学 | A kind of non-contact commutation power supply motor of three-phase alternating current wound rotor |
| CN110195548A (en) * | 2019-04-24 | 2019-09-03 | 上海福丝机电设备有限公司 | A kind of screw rod type electric window opener having speed regulation, synchronization and communication function |
| CN111404327A (en) * | 2016-01-07 | 2020-07-10 | Lg伊诺特有限公司 | Electric motor |
| US10848042B2 (en) | 2017-02-13 | 2020-11-24 | Milwaukee Electric Tool Corporation | Brushless direct current motor for power tools |
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2008
- 2008-04-25 CN CNU2008201110850U patent/CN201185382Y/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102498367A (en) * | 2009-07-31 | 2012-06-13 | 罗伯特·博世有限公司 | Commutated electric drive and method for controlling a commutated electric motor |
| CN102498367B (en) * | 2009-07-31 | 2015-08-05 | 罗伯特·博世有限公司 | Commutation type electric driver and the method for controlling commutated electric motor |
| CN102480203A (en) * | 2010-11-25 | 2012-05-30 | 沈阳工业大学 | Detection and commutation integrated brushless direct current motor |
| CN102480203B (en) * | 2010-11-25 | 2013-11-06 | 沈阳工业大学 | Detection and commutation integrated brushless direct current motor |
| CN102075036B (en) * | 2011-01-26 | 2012-12-26 | 胡磊 | Speed measurement control device for motor |
| CN102075036A (en) * | 2011-01-26 | 2011-05-25 | 胡磊 | Speed measurement control device for motor |
| CN103840724A (en) * | 2012-11-26 | 2014-06-04 | 沈阳工业大学 | Brushless direct current motor and commutation method thereof |
| CN103036385A (en) * | 2012-12-05 | 2013-04-10 | 河北首力防爆电机有限公司 | Brushless direct-current (DC) motor |
| US10488739B2 (en) | 2014-02-28 | 2019-11-26 | Sz Dji Osom Technology Co., Ltd. | Motor, gimbal having the motor, and image capturing device having the gimbal |
| WO2015127741A1 (en) * | 2014-02-28 | 2015-09-03 | 深圳市大疆创新科技有限公司 | Motor, cradle head using motor, and photographing apparatus using cradle head |
| US11106118B2 (en) | 2014-02-28 | 2021-08-31 | Sz Dji Osmo Technology Co., Ltd. | Motor, gimbal having the motor, and image capturing device having the gimbal |
| CN108370208A (en) * | 2015-12-18 | 2018-08-03 | 罗伯特·博世有限公司 | The driving unit of electricity with shell |
| CN111404327A (en) * | 2016-01-07 | 2020-07-10 | Lg伊诺特有限公司 | Electric motor |
| CN112165221A (en) * | 2016-01-07 | 2021-01-01 | Lg伊诺特有限公司 | Electric motor |
| US10848042B2 (en) | 2017-02-13 | 2020-11-24 | Milwaukee Electric Tool Corporation | Brushless direct current motor for power tools |
| US11114927B2 (en) | 2017-02-13 | 2021-09-07 | Milwaukee Electric Tool Corporation | Brushless direct current motor for power tools |
| US11881750B2 (en) | 2017-02-13 | 2024-01-23 | Milwaukee Electric Tool Corporation | Brushless direct current motor for power tools |
| CN106849390A (en) * | 2017-04-13 | 2017-06-13 | 浙江贝德泵业有限公司 | A kind of air conditioning pump with permagnetic synchronous motor |
| CN109936269A (en) * | 2019-04-04 | 2019-06-25 | 沈阳理工大学 | A kind of non-contact commutation power supply motor of three-phase alternating current wound rotor |
| CN110195548A (en) * | 2019-04-24 | 2019-09-03 | 上海福丝机电设备有限公司 | A kind of screw rod type electric window opener having speed regulation, synchronization and communication function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090121 Termination date: 20120425 |