CN103855886A - Electromagnetic speed regulator - Google Patents
Electromagnetic speed regulator Download PDFInfo
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- CN103855886A CN103855886A CN201210524206.5A CN201210524206A CN103855886A CN 103855886 A CN103855886 A CN 103855886A CN 201210524206 A CN201210524206 A CN 201210524206A CN 103855886 A CN103855886 A CN 103855886A
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Abstract
An electromagnetic speed regulator comprises an electromagnetic speed regulator body and a direct current excitation circuit. The electromagnetic speed regulator body is composed of an inner rotor, an outer rotor, an inner rotor shaft, an outer rotor shaft, a bearing, a combined bearing, conductive sliding rings, electric brushes, a conductive wire, a rotating speed sensor, a machine shell and a machine base; the direct current excitation circuit is composed of a controllable rectification circuit, a current sensor, an electric reactor, a control circuit and a connection conductive wire. A fixed air gap is formed between the inner rotor and an iron core magnetic pole of the outer rotor. The two conductive sliding rings are arranged on an outer rotor supporting plate, and the two electric brushes make sliding contact with the surfaces of the two conductive sliding rings; the conductive sliding rings are connected with a concentrated winding of the outer rotor, and the positive output end and the negative output end of the direct excitation circuit are connected with the two electric brushes. The inner rotor shaft and the outer rotor shaft are connected through the combined bearing. The electromagnetic speed regulator has the advantages of replacing a frequency converter, and providing a motor speed regulation method achieving high efficiency, energy conservation, firmness, reliability, low cost, no-load starting and no electromagnetic interference.
Description
Technical field
The present invention relates to a kind of electromagnetic speed-adjusting driving system of electromechanical integration, relate in particular to a kind of electromagnetic adjustable speed motor, can be widely used in the various fields that need speed governing to drive.
Background technology
According to statistics, China's per unit area yield energy consumption is 5 times of developed country, and high for a long time, and the serious waste of electric energy is its one of the main reasons.Take large fan, water pump as example, its drive motor voltage is the high voltage that exchanges 3～10kV, more than power reaches 3000kW, past is due to the long-term constant-speed drive that adopts, wasted a large amount of electric energy, people extensively adopt variable-frequency power power supply in recent years, make motor low cruise in the time of blower fan, the output of water pump low discharge, make power supply realize low-power output, thereby saved electric energy.But adopt variable-frequency power to be subject to many limitations: the one, all electric energy that pass to load from motor all will carry out power conversion through variable frequency power supply, and the core component that carries out power conversion is high performance electronic power switch device, all dependence on import of these high performance electronic power switch devices, so its price is high for a long time; The 2nd, these electronic power switch devices can produce larger electric energy loss, and are subject to the impact of temperature, voltage, electric current, are easy to damage, and cause the failure rate of variable frequency power supply higher; The 3rd, the technical requirement of variable frequency power supply is high, and complex structure, so cost is very high; The 4th, because power electronic device is operated on off state, produce a large amount of harmonic pollutions and electromagnetic interference, have a strong impact on the power supply quality of electrical network, and along with the increase of variable frequency power supply power, the harmful effect causing is more serious; The 5th, along with capacity and the voltage of variable frequency power supply improve constantly, the withstand voltage and capacity of power electronic device can not meet the demands.
Occur that in recent years a kind of permanent magnetic speed-adjusting driver can partly overcome these technological deficiencies.This class permanent magnetic speed-adjusting driver adopts permanent magnet to produce magnetic field, and magnetic field is coupled master and slave moving axis through air gap, thereby by regulating air gap to regulate the size of coupled magnetic field to realize speed governing.Its major defect has: the one, and permanent magnet small volume, the torque of generation is less, and speed adjustable range is limited; The 2nd, permanent magnet is heated and long-time running meeting produces the even magnet loss phenomenon that demagnetizes; The 3rd, the mechanical device structure complexity of adjusting air gap.
Summary of the invention
The object of the invention is to overcome prior art deficiency, provide a kind of cost low, simple in structure, durable in use, implement convenient, energy-efficient, speed-regulating range width, be not subject to that voltage and power grade limit, all parts are all domestic electromagnetic adjustable speed motors.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of electromagnetic adjustable speed motor, by electromagnetic adjustable speed motor body and DC excitation the electric circuit constitute.Described electromagnetic adjustable speed motor body is made up of internal rotor, external rotor, inner rotor shaft, outer rotor shaft, bearing, combination bearing, conducting slip ring, brush, wire, speed probe, casing and support; Described DC excitation circuit is made up of controlled rectification circuit, current sensor, reactor, control circuit and connection wire.
Described internal rotor comprises mouse cage winding and iron core, identical with the rotor of traditional squirrel-cage induction motor; Described internal rotor is enclosed within on inner rotor shaft; Described inner rotor shaft is arranged on casing and end cap for outer rotor by two bearings; Described casing is fixed on support.
Described external rotor comprises concentrated winding, core magnetic pole, iron core yoke, external rotor shell, external rotor supporting bracket and end cap for outer rotor.Described concentrated winding adopts copper or aluminum conductor coiling, and described core magnetic pole and iron core yoke adopt silicon steel sheet; Described concentrated winding, on described core magnetic pole, concentrates winding quantity to equate with core magnetic pole quantity, is all even number, by connecting the positive and negative output terminals of described concentrated winding and DC excitation circuit, makes the polarity of described two adjacent core magnetic poles contrary.Described external rotor is fixed on external rotor shell, and described external rotor shell is fixed on outer rotor shaft by external rotor supporting bracket, and described outer rotor shaft passes through a bearing holder (housing, cover) on casing; Described external rotor shell is enclosed within on inner rotor shaft by end cap for outer rotor and outer rotor bearing.Between described internal rotor and the core magnetic pole of external rotor, form fixing air gap.
Two conducting slip rings are installed in described external rotor supporting bracket, two brushes are installed on described casing, the surface of described two brushes and two conducting slip rings keeps sliding contact; In the external rotor supporting bracket contacting with described conducting slip ring, open two and support plate hole, the concentrated winding of described conducting slip ring and external rotor is linked together by wire; On described casing, open a chassis hole, make described two brushes connect the positive and negative output terminals of described DC excitation circuit by wire.A speed probe is installed on described outer rotor shaft, and speed probe links together by the signal input part of wire and described control circuit.On described external rotor supporting bracket and end cap for outer rotor, open ventilation hole, guarantee heat radiation, ventilation hole shape can be circle, ellipse, triangle, rectangle, arc, trapezoidal.
Described inner rotor shaft and outer rotor shaft link together by a combination bearing, described combination bearing is made up of two steel pipes of rolling bearing overcoat arranged side by side, described inner rotor shaft and outer rotor shaft are enclosed within respectively in described two rolling bearings arranged side by side, guarantee freely to relatively rotate between described inner rotor shaft and outer rotor shaft, and guarantee the mechanical stability of described inner rotor shaft and outer rotor shaft.
Described controlled rectification circuit is identical with traditional controlled rectification circuit, can be single-phase or three-phase; Described controlled rectification circuit is powered by single-phase or three-phase alternating-current supply; Described controlled rectification circuit is connected on described brush by described reactor, for described electromagnetic adjustable speed motor body provides size controlled DC excitation electric current I f; The control end of described controlled rectification circuit is connected with the signal output part of control circuit, and the signal input part of described control circuit is connected with the signal output part of described current sensor and speed probe respectively.
In use, described inner rotor shaft is connected on the axle of drive motor described electromagnetic adjustable speed motor, and described outer rotor shaft is connected on the axle that drives load.
The invention has the beneficial effects as follows:
1. the present invention can be widely used in the various rotating machinery loads that need speed governing driving, as blower fan, water pump, oil transfer pump, elevator, belt conveyer, drag conveyor, electric automobile and track traffic even load, have that cost is low, simple in structure, durable in use, to implement convenient, energy-efficient, speed-regulating range width, the restriction that is not subject to voltage and power grade, all parts be all the advantage such as domestic.In the situation that motor speed is constant, carry out regulating load rotating speed by the size that regulates exciting current If, can replace the widely used frequency-changing speed regulation driver of current people.
2. be zero by regulating exciting current, allow motor no-load start, when electrical motors is after rated speed, progressively increase exciting current, load is stablized and accelerate to required rotating speed.Can significantly reduce rush of current, motor winding heating and mechanical shock in motor starting procedure.
3. by the detection to exciting current and rotating speed, realize the accurate control of exciting current and rotating speed, be applicable to need the mechanical load of accurate speed governing.
4. to pass to the energy of load be all to transmit by the magnetic field between firm inner and outer Rotator to all motor, rather than carry out transmitting torque by traditional mechanical connection, not only the vibration of equipment and noise reduce greatly, and overcome the problem that in RHVC, all energy all will transmit by fragile electronic power switch, thereby greatly improve the reliability of equipment.And only have very little excitation field energy demand to transmit by simple field circuit, field circuit by with the most generally, the most reliably, the most cheap, be that the single-phase or three-phase controlled rectifier circuit that domestic thyristor forms is realized completely.
5. harmonic pollution and electromagnetic interference problem that RHVC causes have been overcome.
6. manufacture electromagnetic adjustable speed motor of the present invention also very convenient, its manufacturing process can adopt the technical standard of existing manufacture cage AC asynchronous electric motor completely, and its cage rotor, casing and pedestal can adopt cage rotor, casing and the pedestal of existing cage AC asynchronous electric motor completely.Its technique of manufacturing slip ring and brush is simpler than the manufacturing process of existing direct current machine, because do not need commutation, thereby can not produce spark.Its total manufacturing cost, operating cost and maintenance cost are well below the widely used RHVC of current people.
7. the torque that overcome existing permanent magnetic speed-adjusting driver is little, speed adjustable range is narrow, permanent magnet is heated and long-time running meeting produces the loss of excitation even of demagnetizing, regulate the defect such as mechanical device structure complexity of air gap.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention structural representations;
Fig. 2 be in Fig. 1 electromagnetic adjustable speed motor body A-A ' cutaway view;
Fig. 3 be Fig. 1 this by the B-B ' cutaway view of this governor body;
Fig. 4 is the structural representation of the combination bearing in Fig. 1;
Fig. 5 is the C-C ' cutaway view in Fig. 4;
Fig. 6 is the A-A ' cutaway view of the electromagnetic adjustable speed motor body of four magnetic poles (two pairs of magnetic poles) in Fig. 2;
Fig. 7 is the electromagnetic adjustable speed motor body construction schematic diagram that removes end cap for outer rotor and bearing in Fig. 1;
Fig. 8 is the structural representation of the electromagnetic adjustable speed motor body of inner and outer Rotator location swap in Fig. 1;
Fig. 9 is the A-A ' cutaway view in Fig. 8;
Figure 10 is the A-A ' cutaway view of the electromagnetic adjustable speed motor body of four magnetic poles (two pairs of magnetic poles) in Fig. 9.
In figure, 1-electromagnetic adjustable speed motor body; 2-DC excitation circuit; 2-1-current sensor; 3-internal rotor; 3-1-internal rotor mouse cage winding; 3-2-internal rotor iron core; 4-external rotor; 4-1-external rotor is concentrated winding; 4-2-outer rotor iron core magnetic pole; 4-3-outer rotor iron core yoke; 4-4-outer rotor case; 4-5-external rotor supporting bracket; 4-6-end cap for outer rotor; 4-7-supports plate hole; 5-air gap; 6-inner rotor shaft; 7-outer rotor shaft; 8-casing; 8-1-chassis hole; 9-support; 10-bearing; 11-outer rotor bearing; 12-combination bearing; 13-conducting slip ring; 14-brush; 15-wire; 16-speed probe.
Embodiment
Embodiment mono-:
With reference to accompanying drawing 1,2, a kind of electromagnetic adjustable speed motor, is made up of electromagnetic adjustable speed motor body 1 and DC excitation circuit 2.Electromagnetic adjustable speed motor body 1 is made up of internal rotor 3, external rotor 4, inner rotor shaft 6, outer rotor shaft 7, casing 8, support 9, bearing 10, outer rotor bearing 11, combination bearing 12, conducting slip ring 13, brush 14, wire 15, speed probe 16; DC excitation circuit 2 is made up of controlled rectification circuit, current sensor 2-1, reactor, control circuit and connection wire.
Described internal rotor 3 comprises mouse cage winding 3-1 and iron core 3-2, identical with the rotor of traditional squirrel-cage induction motor; Described internal rotor 3 is enclosed within on inner rotor shaft 6; Described inner rotor shaft 6 is arranged on casing 8 and end cap for outer rotor 4-6 by two bearings 10,11; Described casing 8 is fixed on support 9.
Described external rotor 4 comprises concentrates winding 4-1, core magnetic pole 4-2, iron core yoke 4-3, external rotor shell 4-4, external rotor supporting bracket 4-5 and end cap for outer rotor 4-6.Described concentrated winding 4-1 adopts copper or aluminum conductor coiling, and described core magnetic pole 4-2 and iron core yoke 4-3 adopt silicon steel sheet; Described concentrated winding 4-1 is on described core magnetic pole 4-2, concentrate winding quantity to equate with core magnetic pole quantity, be all even number, by connecting the positive and negative output terminals of described concentrated winding 4-1 and DC excitation circuit 2, make the polarity of described two adjacent core magnetic pole 4-2 contrary.It is upper that described external rotor 4 is fixed on external rotor shell 4-4, and described external rotor shell 4-4 is fixed on outer rotor shaft 7 by external rotor supporting bracket 4-5, and described outer rotor shaft 7 is enclosed within on casing 8 by a bearing 10; Described external rotor shell 4-4 is enclosed within on inner rotor shaft 6 by end cap for outer rotor 4-6 and outer rotor bearing 11.Between described internal rotor 3 and the core magnetic pole 4-2 of external rotor 4, form fixing air gap 5.
With reference to accompanying drawing 3, on described external rotor supporting bracket 4-5, two conducting slip rings 13 are installed, two brushes 14 are installed on described casing 8, the surface of described two brushes 14 and two conducting slip rings 13 keeps sliding contact; On the external rotor supporting bracket 4-5 contacting with described conducting slip ring 13, open two and support plate hole 4-7, described conducting slip ring 13 and the concentrated winding 4-1 of external rotor are linked together by wire 15; On described casing 8, open a chassis hole 8-1, make described two brushes 14 connect the positive and negative output terminals of described DC excitation circuit 2 by wire.On described outer rotor shaft 7, speed probe 16 is installed, the signal output part of revolution speed sensing 16 links together by the signal input part of wire and described control circuit.On described external rotor supporting bracket 4-5 and end cap for outer rotor 4-6, open some ventilation holes, guarantee heat radiation, ventilation hole shape can be circle, ellipse, triangle, rectangle, arc, trapezoidal.
With reference to accompanying drawing 1,4,5, described inner rotor shaft 6 and outer rotor shaft 7 link together by a combination bearing 12, described combination bearing is made up of two steel pipes of rolling bearing overcoat arranged side by side, described inner rotor shaft 6 and outer rotor shaft 7 are enclosed within respectively in described two rolling bearings arranged side by side, guarantee freely to relatively rotate between described inner rotor shaft 6 and outer rotor shaft 7, and guarantee the mechanical stability of described inner rotor shaft 6 and outer rotor shaft 7.
The controlled rectification circuit of described DC excitation circuit 2 is identical with traditional controlled rectification circuit, can be single-phase or three-phase, is powered by single-phase or three-phase alternating-current supply; Described controlled rectification circuit is connected on described brush 14 by described reactor, for electromagnetic adjustable speed motor body 1 provides size controlled DC excitation electric current I f; The control end of controlled rectification circuit is connected with the signal output part of control circuit, and the signal input part of described control circuit is connected with the signal output part of described current sensor 2-1 and speed probe respectively.
Embodiment bis-:
With reference to accompanying drawing 6, a kind of another kind of embodiment of electromagnetic adjustable speed motor.Two core magnetic pole 4-2 of external rotor 4 in embodiment mono-are increased to four, by the concentrated winding 4-1 on connection core magnetic pole and the positive and negative output terminals of DC excitation circuit 2, make the polarity of adjacent two core magnetic pole 4-2 contrary.The rest may be inferred, core magnetic pole quantity can be increased to six, eight, ten, 12, etc.
Embodiment tri-:
With reference to accompanying drawing 7, a kind of another kind of embodiment of electromagnetic adjustable speed motor.End cap for outer rotor 4-6 in embodiment mono-is removed be connected bearing 10, make external rotor 4 become cup-shaped structure.
Embodiment tetra-:
With reference to accompanying drawing 8,9, a kind of another kind of embodiment of electromagnetic adjustable speed motor.By inner and outer Rotator location swap in embodiment mono-, external rotor 4 adopts mouse cage winding construction, and internal rotor 3 adopts concentrates winding construction.Conducting slip ring 13, brush 14, wire 15 and speed probe 16 are placed on inner rotor shaft 6.
Embodiment five:
With reference to accompanying drawing 10, a kind of another kind of embodiment of electromagnetic adjustable speed motor.Two core magnetic pole 3-2 of internal rotor 3 in embodiment tetra-are increased to four, by connecting the positive and negative output terminals of described concentrated winding 3-1 and DC excitation circuit 2, make the polarity of adjacent two core magnetic pole 3-2 contrary.The rest may be inferred, the quantity of core magnetic pole 3-2 can be increased to six, eight, ten, 12, etc.
Claims (5)
1. an electromagnetic adjustable speed motor, by electromagnetic adjustable speed motor body and DC excitation the electric circuit constitute.It is characterized in that, described electromagnetic adjustable speed motor body is made up of internal rotor, external rotor, inner rotor shaft, outer rotor shaft, bearing, combination bearing, conducting slip ring, brush, wire, speed probe, casing and support; Described DC excitation circuit is made up of controlled rectification circuit, current sensor, reactor, control circuit and connection wire.Described internal rotor comprises mouse cage winding and iron core, identical with the rotor of traditional squirrel-cage induction motor; Described internal rotor is enclosed within on inner rotor shaft; Described inner rotor shaft is arranged on casing and end cap for outer rotor by two bearings; Described casing is fixed on support.Described external rotor comprises concentrated winding, core magnetic pole, iron core yoke, external rotor shell, external rotor supporting bracket and end cap for outer rotor.Described concentrated winding adopts copper or aluminum conductor coiling, and described core magnetic pole and iron core yoke adopt silicon steel sheet; Described concentrated winding, on described core magnetic pole, concentrates winding quantity to equate with core magnetic pole quantity, is all even number, by connecting the positive and negative output terminals of described concentrated winding and DC excitation circuit, makes the polarity of described two adjacent core magnetic poles contrary.Described external rotor is fixed on external rotor shell, and described external rotor shell is fixed on outer rotor shaft by external rotor supporting bracket, and described outer rotor shaft passes through a bearing holder (housing, cover) on casing; Described external rotor shell is enclosed within on inner rotor shaft by end cap for outer rotor and outer rotor bearing.Between described internal rotor and the core magnetic pole of external rotor, form fixing air gap.Two conducting slip rings are installed in described external rotor supporting bracket, two brushes are installed on described casing, between described two brushes and two conducting slip ring surfaces, keep sliding contact; In the external rotor supporting bracket contacting with described conducting slip ring, open two and support plate hole, the concentrated winding of described conducting slip ring and external rotor is linked together by wire; On described casing, open a chassis hole, make described two brushes connect the positive and negative output terminals of described DC excitation circuit by wire.A speed probe is installed on described outer rotor shaft, and the signal output part of speed probe links together by the signal input part of wire and described control circuit.On described external rotor supporting bracket and end cap for outer rotor, open some ventilation holes, guarantee heat radiation, ventilation hole shape can be circle, ellipse, triangle, rectangle, arc, trapezoidal.Described inner rotor shaft and outer rotor shaft link together by a combination bearing, described combination bearing is made up of two steel pipes of rolling bearing overcoat arranged side by side, described inner rotor shaft and outer rotor shaft are enclosed within respectively in described two rolling bearings arranged side by side, guarantee freely to relatively rotate between described inner rotor shaft and outer rotor shaft, and guarantee the mechanical stability of described inner rotor shaft and outer rotor shaft.Described controlled rectification circuit is identical with traditional controlled rectification circuit, can be single-phase or three-phase, is powered by single-phase or three-phase alternating-current supply; Described controlled rectification circuit is connected on described brush by described reactor, for described electromagnetic adjustable speed motor body provides size controlled DC excitation electric current I
f; The control end of described controlled rectification circuit is connected with the signal output part of control circuit, and the signal input part of control circuit is connected with speed probe with current sensor respectively.In use, described inner rotor shaft is connected on the axle of drive motor described electromagnetic adjustable speed motor, and described outer rotor shaft is connected on the axle that drives load.
2. a kind of electromagnetic adjustable speed motor according to claim 1, it is characterized in that two core magnetic poles of external rotor to increase to four, by connecting concentrated winding and the DC excitation circuit positive and negative output terminals on core magnetic pole, make the polarity of adjacent two core magnetic poles contrary.The rest may be inferred, the quantity of core magnetic pole can be increased to six, eight, ten, 12, etc.
3. a kind of electromagnetic adjustable speed motor according to claim 1, is characterized in that end cap for outer rotor to remove be connected bearing, makes external rotor become cup-shaped structure.
4. a kind of electromagnetic adjustable speed motor according to claim 1, is characterized in that inner and outer Rotator location swap, and external rotor adopts mouse cage winding construction, and internal rotor adopts concentrates winding construction.Conducting slip ring, brush, wire and speed probe are placed on inner rotor shaft.
5. according to a kind of electromagnetic adjustable speed motor described in claim 1 and 4, it is characterized in that two core magnetic poles of internal rotor to increase to four.The rest may be inferred, the quantity of core magnetic pole can be increased to six, eight, ten, 12, etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210524206.5A CN103855886B (en) | 2012-11-28 | 2012-11-28 | A kind of electromagnetic adjustable speed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210524206.5A CN103855886B (en) | 2012-11-28 | 2012-11-28 | A kind of electromagnetic adjustable speed motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103855886A true CN103855886A (en) | 2014-06-11 |
| CN103855886B CN103855886B (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210524206.5A Expired - Fee Related CN103855886B (en) | 2012-11-28 | 2012-11-28 | A kind of electromagnetic adjustable speed motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN103855886B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525864A (en) * | 2019-07-09 | 2020-08-11 | 河海大学 | Operation control method of four-quadrant operation electromagnetic clutch |
| CN113002893A (en) * | 2021-03-26 | 2021-06-22 | 广西壮族自治区烟草公司贵港市公司 | Different unification letter sorting line of strip cigarette mark |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2392299Y (en) * | 1999-09-28 | 2000-08-16 | 连云港电机厂 | Electromagnetic speed adjustable electric motor |
| EP1133045A1 (en) * | 1998-11-20 | 2001-09-12 | Hitachi, Ltd. | Wound-rotor induction motor and energy conversion facility for variable speed electric machine |
| CN101262169A (en) * | 2008-04-28 | 2008-09-10 | 哈尔滨工业大学 | Axial magnetic pass electromagnetic deceleration high-temperature superconductive electromotor |
| CN101834487A (en) * | 2009-03-12 | 2010-09-15 | 赵强 | Hybrid electric motor |
| CN203166715U (en) * | 2012-11-28 | 2013-08-28 | 杨玉岗 | Electromagnetic speed regulating machine |
-
2012
- 2012-11-28 CN CN201210524206.5A patent/CN103855886B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1133045A1 (en) * | 1998-11-20 | 2001-09-12 | Hitachi, Ltd. | Wound-rotor induction motor and energy conversion facility for variable speed electric machine |
| CN2392299Y (en) * | 1999-09-28 | 2000-08-16 | 连云港电机厂 | Electromagnetic speed adjustable electric motor |
| CN101262169A (en) * | 2008-04-28 | 2008-09-10 | 哈尔滨工业大学 | Axial magnetic pass electromagnetic deceleration high-temperature superconductive electromotor |
| CN101834487A (en) * | 2009-03-12 | 2010-09-15 | 赵强 | Hybrid electric motor |
| CN203166715U (en) * | 2012-11-28 | 2013-08-28 | 杨玉岗 | Electromagnetic speed regulating machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525864A (en) * | 2019-07-09 | 2020-08-11 | 河海大学 | Operation control method of four-quadrant operation electromagnetic clutch |
| CN111525864B (en) * | 2019-07-09 | 2021-11-09 | 河海大学 | Operation control method of four-quadrant operation electromagnetic clutch |
| CN113002893A (en) * | 2021-03-26 | 2021-06-22 | 广西壮族自治区烟草公司贵港市公司 | Different unification letter sorting line of strip cigarette mark |
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| CN103855886B (en) | 2016-08-31 |
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