CN202798174U - Novel permanent magnet motor of discrete electromagnet stator structure - Google Patents
Novel permanent magnet motor of discrete electromagnet stator structure Download PDFInfo
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- CN202798174U CN202798174U CN 201220170807 CN201220170807U CN202798174U CN 202798174 U CN202798174 U CN 202798174U CN 201220170807 CN201220170807 CN 201220170807 CN 201220170807 U CN201220170807 U CN 201220170807U CN 202798174 U CN202798174 U CN 202798174U
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Abstract
A permanent magnet motor using a discrete electromagnet stator structure is disclosed. A stator coil of the motor is formed by a plurality of independent electromagnet coils. The independent electromagnets are installed on a corresponding holder. After power is on, the motor stator generates a magnetic force to a permanent magnet on a rotor. One component force direction of the magnetic force is along an axial direction of the motor so that an axial magnetic field motor is generated. Two end surfaces of an electromagnet core simultaneously generate a magnetic force effect on a permanent magnet installed on the rotor so that a function is equivalent to the function that two axial magnetic field motors are connected in parallel. The motor has the following advantages that efficiency is high; a starting torque is large and so on.
Description
Technical field
Development along with the permanent magnet technology, magneto is with respect to traditional AC induction motor, because electric energy conversioning mechanical energy conversion efficiency is high, the technical advantages such as lower starting current and large starting torque, magneto all is widely used at all sectors of society, especially at electric automobile, be used widely in the fields such as battery vehicle and elevator.
Background technology
Magneto comprise DC brushless motor, ac synchronous motor, stepping motor, servomotor ... Deng, magneto on market is to improve as DC brushless motor or ac synchronous motor develop on the architecture basics of traditional asynchronous machine, these magnetoes can be divided into two large classifications according to the direction of the magnetic line of force of permanent magnet on rotor, that is: with the traditional structure pattern motor of radial magnetic force line mode and the dish formula structural electromotor of axial magnetic field direction.The stator core of the magneto of traditional structure utilizes the certain thickness cylindric core construction of assembling after the silicon steel sheet punching press of definite shape, there is equal-sized winding wiring groove the outside or inboard at silicon steel plate core, place the insulated copper wire of certain number of turn in wiring groove, form the stator winding of motor.
Traditional magneto, be comprised of rotor and stator, comprises outer-rotor type and inner-rotor type:
For inner rotor motor, rotor generally includes bearing, rotating shaft, permanent magnet and yoke etc.; Stator pack vinculum circle winding, stator core, motor enclosing cover and end cap etc.;
For external rotor electric machine: rotor generally includes bearing, permanent magnet and yoke etc.; Stator pack vinculum circle winding, stator core, rotating shaft, motor enclosing cover and end cap etc.
The punching presses such as stator core soft magnetic material employing silicon steel sheet are made, according to design of electrical motor, the difference of the demand that use occasion and motor harmonic wave suppress, the winding arrangement that passes three-way motor has single layer winding, two layer winding and fractional slot winding etc., connected mode between winding comprises chain type, staggered form and concentric type etc., and stator is fixed in casing usually, technical data is as " the theoretical and design of magneto ", and technical data such as " brshless DC motor principle and application " etc. have detailed description and guidance to traditional Design of PM Motor and application.
As shown in Figure 1, in figure: 101 is silicon steel sheet to the sectional view of the stator silicon steel sheet of conventional motors, and 102 is the stator coil holddown groove, the inner insulated copper wire of placing certain number of turn, the stator that forms the internal rotor permanent-magnetic motor, 103 is stator core inner headed face, i.e. magnet air gap acting surface.If coil holddown groove 102, in the outside of cylindric iron core, just forms the stator of outer-rotor permanent magnet motor.Winding on motor stator is by after electric current, and the electric current in wire produces electromagnetic force perpendicular to the magnetic flux density direction in the magnet air gap scope, and the direction of effect can be gone judgement by left hand rule.Because the stator of motor maintains static, so the active force that the electrical current wire produces in magnetic field can act on by the mode of reaction force and be arranged on epitrochanterian permanent magnet, moment-torque rotates in electromagnetism reaction correspondence on permanent magnet and the distance range of center of rotation, drive rotor, make the motor output mechanical energy, complete the conversion of electric energy and mechanical energy.
Summary of the invention
The discrete electromagnet structure mode that motor stator of the present invention adopts, electromagnet is to consist of the solenoid coil of certain number of turn, coil support and inner performance core of safety valve in gas-fired instrument.The number of the discrete electric magnet that motor stator is required need to decide according to the magnetic pole logarithm of motor, and the number of discrete electromagnet adopts 6n(n=1,2,3 ...) mode, i.e. 6 natural number (do not comprise zero) multiple relation and determining, discrete electromagnet is fixed on the retainer of particular design, installs fixingly, then other enclosure group of mixing motor are dressed up stator mechanism.
The structural model of discrete electric magnet is as shown in Figure of description 2 and Fig. 3, in Fig. 2 and Fig. 3:
1 and 51 is the solenoid coil winding, the number of turn of winding and the length of winding, and according to the diameter of design of electrical motor, the power of motor, the rated voltage of motor, the rated current of motor etc. are comprehensively determined;
2 is the back-up ring device on performance core of safety valve in gas-fired instrument, in order to spacing and fixed electromagnet, prevents that performance core of safety valve in gas-fired instrument breaks away from holder 3 under the permanent magnet active force from solenoid coil;
3 and the 201 coil holders that are solenoid coil, adopt resistant to elevated temperatures insulating material to be made, inner through performance core of safety valve in gas-fired instrument;
4 and 202 end faces that are electromagnet core air gap place, during electromagnet coil power, electric energy is converted to magnetic energy, the magnet strength maximum at end face of iron core place, thus the permanent magnet at magnetic air gap place is produced to magnetic force;
5 and 50 is performance core of safety valve in gas-fired instrument, the end surface shape of magnet magnetic gap is trapezoidal shape when chamfering state (not) or covering of the fan shape, performance core of safety valve in gas-fired instrument is linear pattern shape or ' C ' shape structural design, the processing of performance core of safety valve in gas-fired instrument adopts lamination structure to laminate making, prevent performance core of safety valve in gas-fired instrument under the magnetic fields of frequent variations, producing strong eddy current and generate heat, affecting motor performance.
In the electromagnet of Fig. 1 and Fig. 2, the iron core of electromagnet adopts the high soft magnetic material of magnetic permeability to be made, due to the good magnetic property of having of soft magnetic material and diamagnetic saturated performance, during electromagnet coil power, electric energy is converted to magnetic energy, performance core of safety valve in gas-fired instrument effectively is delivered to endface position by the magnetic field of coil inside, and the magnet strength maximum of end, produce effective magnetic force to the permanent magnet in correspondence position zone on rotor.Minute force direction of the active force that permanent magnet produces is identical with the axial direction of stator, so become again the axial magnetic motor, but what cause electric machine rotation is the force action of the tangential component of magnetic force, electromagnet coil to the tangential forces of the magnetic force of permanent magnet to make a concerted effort be the useful effect power that drive rotor rotates.
On rotor, the selection principle of permanent magnet number is according to the shape of the stator electromagnet iron core of motor and the number of discrete electric magnet, and the connected mode of discrete electric magnet coil etc. are determined.According to electric machine theory, coil of stator of motor is through an all after date of energising, and the angle of the magnetic field rotating of stator equals the angle of a pair of magnetic pole on rotor.Therefore the number of magnetic poles of rotor is 2n(n=1,2,3 ...) mode, i.e. 2 natural number (do not comprise zero) multiple relation and determining.Adjacent magnets polarity staggered mode in circumference range is arranged, be N-S-N-S-N ... S-or S-N-S-N-S ... N-, for stepping motor, the number of discrete electric magnet can be identical with the number of permanent magnet, for DC brushless motor or three-phase AC permanent magnet synchronous motor, the number of discrete electric magnet is greater than the number of permanent magnet on rotor, (can determine according to 5/6 or 2/6 relation the number of permanent magnet, but the sectorial area that uses the permanent magnet of 2/6 definite number is about 3 times of the performance core of safety valve in gas-fired instrument face area), permanent magnet adopts bonding or adopts the mode of the press strip of weak magnetic material making to be fixed on rotor, the material of rotor makes cylinder iron or aluminum alloy materials usually.
Electromagnet coil is by after direct current or alternating current, and electromagnet converts electrical energy into magnetic energy, and the magnetic flux density maximum at end face of iron core place, and the induction level of end and direction are followed the electrical current size and Orientation and changed.The magnetic field that electromagnet produces not only produces magneticaction to epitrochanterian soft magnetic bodies, also may be magnetized and produce magnetic attraction the ferromagnetic type material between two permanent magnets on rotor, and the existence of this attraction can affect the behavior in service of motor.In order to prevent or weaken this magnetic attraction effect, need to adopt non-(weak) magnetic material (comprising paramagnetic substance or diamagnetic substance) between permanent magnet, as the materials such as air, aluminium or copper are isolated or fill, or directly the bonding agent of other curing properties is filled.
The permanent magnet motor stator formed by a plurality of discrete electric magnet, the mode of connection between discrete electric magnet can go carry out and complete with reference to ripe DC brushless motor winding wiring rule and AC permanent magnet synchronous motor winding wiring rule, stator winding connects electric machine controller by the terminal box on motor or driver is carried direct current or the three-phase alternating-current supply that meets designing requirement, the magnetic field that can produce rotation and change on the stator performance core of safety valve in gas-fired instrument end face of motor like this, produce magnetic force to epitrochanterian permanent magnet.Be to allow rotate around the stator axle center useful effect power of moment of rotor making a concerted effort on the tangential direction of permanent magnet magnetic active force, rotor is synchronously followed magnetic field and is rotated under the effect of magnetic force torque, thereby allows motor complete the conversion output of electric energy to mechanical energy.
Two end faces of electromagnet core produce the effect of magnetic force simultaneously to permanent magnet fixing on rotor, be equivalent to the parallel connection of two motor in axial magnetic field (parameter of motor identical situation under), and the advantage on detent torque is arranged.Owing to adopting discrete electromagnet structure mode, with respect to present general magneto, the end wiring that can save stator coil, have certain cost advantage simultaneously.The rotating speed of the magneto of discrete electric magnet stator structure calculates and the rotating magnetic field mechanism of production simultaneously, and the mode of direction of rotation adjustment is equal to existing AC permanent magnet synchronous motor magneto or DC brushless motor etc.
The accompanying drawing explanation
Figure of description is described as follows:
Fig. 1: the sectional view of the stator silicon steel sheet of conventional motors;
Fig. 2: the structural representation of linear pattern discrete electric magnet unshakable in one's determination;
Fig. 3: the structural representation of ' C ' shape discrete electric magnet unshakable in one's determination;
Fig. 4: discrete electric magnet outer-rotor permanent magnet motor schematic diagram;
Fig. 5: discrete electric magnet outer-rotor permanent magnet motor cutaway view;
Fig. 6: motor stator for outer rotator retainer schematic diagram;
Fig. 7: external rotor electric machine discrete electric magnet stator schematic diagram;
Fig. 8: the rotor visual angle figure (visual angle 1) of discrete electric magnet stator structure external rotor electric machine;
Fig. 9: the rotor visual angle figure (visual angle 2) of discrete electric magnet stator structure external rotor electric machine;
Figure 10: the internal rotor permanent-magnetic motor schematic diagram of discrete electric magnet stator structure;
Figure 11: discrete electric magnet stator internal rotor permanent-magnetic motor cutaway view;
Figure 12: discrete electric magnet stator internal rotor permanent-magnetic motor stator structure schematic diagram;
Figure 13: discrete electric magnet stator internal rotor permanent-magnetic motor stator structure cutaway view;
Figure 14: the rotor schematic diagram of discrete electric magnet stator structure internal rotor permanent-magnetic motor.
Embodiment
Discrete electric magnet stator structure magneto, structure and shape according to the performance core of safety valve in gas-fired instrument shown in Fig. 2 and Fig. 3, form the electric machine structure of two class complementary types, the magneto of the outer-rotor structure that adopts the electromagnet of Fig. 1 type to form: stator is installed in the inside of rotor, and rotor is in the outside of stator.As shown in Figure 4, as shown in Figure 5, in Fig. 5, stator is 30 to the motor cutaway view to discrete electric magnet outer-rotor permanent magnet motor, and rotor is 31, and wherein, stator 30 design principles are as follows:
For the discrete electric magnet stator structure that adopts Fig. 2, discrete electric magnet need to be installed and be fixed on the stator retainer, being shaped as shown in Fig. 6 of the stator retainer of motor, the stator after assembling as shown in Figure 7, in the drawings:
13 is two-piece type stator retainer, above equidistant discrete electric magnet location and the fixing mounting groove 12 of having, the discrete electric magnet coil number of the number of mounting groove and design of electrical motor equates, two stator retainers are connected by the screw rod through screwed hole 9, it is fair or slightly high that discrete electric magnet is installed the outside end face 14 of rear electromagnet end face 4 and stator retainer, after discrete electric magnet is installed location, discrete electric magnet press strip 11 is bolted in hole 10, prevents that discrete electric magnet breaks away from retainer.On the stator retainer, have flat key groove 6 by flat key as the keyway 7 on stator axis is meshed, prevent that stator axis and stator retainer from relatively moving.One end of stator axis 8 needs drill centers 15(or grooving), the other end adopts the mode of solid design to design, that end that centre bore is arranged in stator axis bores through wires hole 17 simultaneously, for the power line after allowing the coiling of discrete electric magnetic coil connect, control signal wire on motor stator, signal monitoring cables etc. are drawn through via hole 17 by retainer crossed beam trunking 16 from axis hole 15, are connected in the terminal box of outside motor.
Rotor 31 design principles of discrete electric magnet stator structure outer-rotor permanent magnet motor are as follows:
According to the mode of connection of coil on discrete electric magnet stator, the shape of end face of iron core, the rotor of discrete electric magnet stator structure external rotor electric machine forms as shown in Figure 8 and Figure 9, the view shape of the different visual angles that Fig. 8 and Fig. 9 are rotor.The composition of figure rotor comprises rotor driving wheel 24 and rotor driving wheel 25, on driving wheel, be staggered installation of or adhesive permanent magnetism body 21 and 22, the permanent magnet end surface shape is identical with the electromagnet core end surface shape and similar, it is the different adjacent principles of polarity that permanent magnet is arranged principle, during with respect to the same direction of rotation of starting point, magnet is according to N-S-N-S-N ... .S-(S-N-S-N-S ... N-) principle, the progression correspondence of the number of permanent magnetism and stator coil.Magnet on rotor driving wheel 24 and 25 is the mirror image symmetry, and the permanent magnet polarity of mirror image symmetric position is contrary, could become corresponding relation with the magnetic of electromagnet coil end face of iron core like this, permanent magnet is made a concerted effort minimum to the magnetic force of the axial direction of the electromagnet core on stator structure or is zero.Rotor mechanism also comprises runner 20, and runner 20 is according to the application scenario difference, and the shape design can be designed to without grooving or grooving 23, and runner is connected by connecting hole 19 use screw rods with the rotor driving wheel.Due to the difference of the two ends diameter of stator axis, the bearing 18 of the installation on driving wheel has different external diameters and internal diameter 27.
The rotor of the stator of Fig. 7 and Fig. 8 (or Fig. 9) completes assembling, forms the electric machine structure of Fig. 4.
The external rotor electric machine of Fig. 4 structure, owing under the factor actings in conjunction such as the insulated copper wire coiling number of plies on the length of electromagnet coil, the external diameter of motor, residing circle diameter unshakable in one's determination, electromagnet coil, design of electrical motor can being become to slender structure or flat structure, so practical application, according to mobile type, does not need the field (electric automobiles) of motor housing to have broad application prospects at some.
The external rotor electric machine of Fig. 4 structure, simple in structure, but need to guarantee during practical application:
The permanent magnet of driving wheel is the axial runout scope of end face when the driving wheel rotary state fixedly, guarantee permanent magnet on permanent magnet and the rational magnet air gap distance of electromagnet and operation process rotor not with stator on the electromagnet core end face friction or collision occur, cause permanent magnet damage and scrap;
Also need to guarantee colleague's degree and the circular runout of two driving wheels simultaneously, guarantee that smooth running and the circular runout scope of the middle rotor wheel connected of two driving wheels is little;
Rational design size and precision, advanced assembly technology is to guarantee the two permanent magnetic drive wheel similar bases of air gap distance with assemble flow, only have the magnet air gap of permanent magnet and stator core end face to equate, just can guarantee permanent magnet to the radially magnetic force component minimum of electromagnet core on stator or equal zero.
Discrete electric magnet stator structure magneto, also comprise the another kind of inner rotor core magneto that adopts the electromagnet composition of Fig. 3: the rotor driving wheel is installed in the inside of stator, and stator is connected with machine casing.As shown in figure 10, as shown in figure 11, in Figure 11, the stator of motor is 40 to the motor cutaway view to the internal rotor permanent-magnetic motor of discrete electric magnet stator structure, and rotor is 41, and host housing is 42.
The design principle of the stator 40 of discrete electric magnet stator structure inner rotor motor is as follows:
For the discrete electric magnet stator structure that adopts Fig. 3, the stator structure of motor as shown in figure 12, cutaway view as shown in figure 13, in figure, discrete electric magnet is used and is fixed on 52 stator retainer, and the stator retainer is connected the shell 53 of stator retainer and stator machine by bolt hole 57, the stator retainer is semi-circular design, is the installation needs for the rotor driving wheel.In Figure 12 and Figure 13, the 55 magnet breaths that are electromagnet core, after coil electricity, the magnetic field of solenoid inside is delivered to gap position 55 unshakable in one's determination by magnetized iron core, permanent magnet to the rotor driving wheel produces magneticaction, 56 is bearing mounting hole, in order to the fixed rotor bearing, 54 is stator cover plate connecting hole, be bolted stator cover plate 58, control signal wire on the additional motor stator of power line after allowing the coiling of discrete electric magnetic coil connect, signal monitoring cable, be connected in the terminal box on shell by the cable-through hole on stator casing 53.
According to electromagnet core place end surface shape on discrete electric magnet stator, the mode of connection of electromagnet coil, the rotor of discrete electric magnet stator motor forms as shown in figure 14.In figure: the composition of rotor comprises rotor driving wheel 59, with driving wheel device for positioning and securing 64, on the drive wheel circumferences face, be staggered installation of or adhesive permanent magnetism body 62 and 63, in order to install and locate permanent magnet, the permanent magnet location notch need to be driven in the place of drive wheel circumferences face permanent magnet fixed position, the degree of depth of location notch is slightly larger than the thickness of permanent magnet, is convenient to the bonding or fixing of permanent magnet, makes the magnetic pole end face of fixing rear permanent magnet equal with the periphery of driving wheel.The permanent magnet end surface shape is identical with the electromagnet core end surface shape and similar, it is the different adjacent principles of polarity that the permanent magnet of driving wheel is arranged principle, during with respect to the same direction of rotation of starting point, magnet is according to N-S-N-S-N ... .S-(S-N-S-N-S ... N-) principle, the progression correspondence of the number of permanent magnetism and stator coil, end face of iron core in the certain magnet air gap effect apart from interior generation electromagnetic force of the permanent magnet on assurance rotor driving wheel to electromagnet.The circumference tangential component of magnetic force produces torque, by flat key, the flat key groove 66 on rotor driving wheel fixture 64 and main shaft 60 is fixed as one, while preventing that rotor from rotating and main shaft produce slide displacement.Main shaft 60 can be exported the mechanical energy of motor by 65 the mode that connects traction sheave.
The inner rotor motor of Figure 10 structure, owing on the external diameter of the length of electromagnet coil, motor, the residing circle diameter in end face of iron core lower end, electromagnet coil, under the factor acting in conjunction such as insulated copper wire coiling number of plies, design of electrical motor can being become to flat structure, the effect that the two-sided magnetic field of permanent magnet produces electromagnetic force, the cost of permanent magnet.
The stator of Figure 12 and the rotor of Figure 14 have assembled the inner rotor motor of rear formation Figure 10, the design processing aspect of structure relative complex, particularly electromagnet core, so in assembling process or the design in should be noted that following aspect:
The axial runout scope of guaranteeing two end faces under rotor driving wheel rotary state is less than the magnet air gap of permanent magnet to the performance core of safety valve in gas-fired instrument end face magnetic force of electromagnet, and prevent that the running of rotor driving wheel from being and the electromagnet core end-face friction, causes permanent magnet damage and scrap;
Guarantee to assemble the flatness of rear stator core end face, and for the rotor driving wheel is installed, the stator coil support adopts two semicircles designs, wait machine casing and rotor Relatively orientation to complete after in the insertion machine casing, and with bolt fixed stator retainer;
Rational design size and precision, advanced assembly technology is to guarantee the two permanent magnetic drive wheel similar bases of air gap distance with assemble flow, only have the magnet air gap of permanent magnet and stator core end face to equate, just can guarantee permanent magnet to the radially magnetic force component minimum of electromagnet core on stator or equal zero.
On electric machine structure by Fig. 4 and Figure 10, see, two end faces of electromagnet core produce the effect of magnetic force simultaneously to permanent magnet fixing on rotor, be equivalent to the parallel connection of two motor in axial magnetic field on function, while is due to the convenience of electromagnet coil coiling, can save performance core of safety valve in gas-fired instrument and copper cash, therefore the magneto be comprised of discrete electric magnet stator is that a kind of principle is simple, novel structure, the motor of a kind of progress with low cost.
Claims (5)
1. the Novel permanent-magnet motor of a discrete electric magnet stator structure is characterized in that:
The stator of Novel permanent-magnet motor is used single discrete electric magnet, use the single solenoid coil of certain number of turn that coiling is good, the inner magnetic conductive iron through the soft magnetic material processing and fabricating, be assembled into single discrete electric magnet, the discrete electric magnet of a plurality of same model is first-class to distributing and being fixed on distinctive retainer at the space circumference, be assembled into the stator of novel inner and outer Rotator magneto;
Two end faces of the stator electromagnet of the Novel permanent-magnet motor of discrete electric magnet stator structure gap position unshakable in one's determination produce the effect of magnetic force simultaneously to permanent magnet fixing on rotor, be equivalent to the parallel connection of two motor in axial magnetic field on function.
2. Novel permanent-magnet motor according to claim 1, is characterized in that also comprising stator, discrete electric magnet soft magnet core on stator:
The soft magnet core of discrete electric magnet is the linear pattern shape and structure, the end surface shape at magnet air gap place is trapezoidal shape or covering of the fan shape, a plurality of identical discrete electric magnet is first-class to distributing and being fixed on retainer at the space circumference, be assembled into the stator of outer-rotor permanent magnet motor;
The number of the discrete electric magnet that the Novel external rotor permanent magnet motor stator is required is determined according to magnetic pole logarithm and the winding connection mode of design motor, and the number of discrete electric magnet adopts 6n, n=1,2,3 ..., 6 positive integer principle is doubly determined.
3. Novel permanent-magnet motor according to claim 1 and 2 is characterized in that also comprising rotor:
Rotor is the dual drive wheel rotor structure, on two driving wheels, all be staggered installation of or permanent magnet that bonding plane polarity is different, permanent magnet end surface shape and electromagnet core end surface shape are same or similar, the permanent magnet number determines by the number of poles of stator, and the permanent magnet polarity on two rotor driving wheel mirror image symmetric positions is different.
4. Novel permanent-magnet motor according to claim 1, is characterized in that also comprising stator, discrete electric magnet soft magnet core on stator:
The soft magnet core of discrete electric magnet, end surface shape at the magnet magnetic gap is trapezoidal shape or covering of the fan shape, the shape that soft magnet core is is designed to " C " shape structure, a plurality of identical single electromagnet space circumference are first-class to distributing and being fixed on retainer afterwards and motor housing is fixed, be assembled into the stator of internal rotor permanent-magnetic motor
.
The number of the discrete electric magnet that the Novel external rotor permanent magnet motor stator is required is determined according to magnetic pole logarithm and the winding connection mode of design motor, and the number of discrete electric magnet adopts 6n, n=1,2,3 ..., 6 positive integer principle is doubly determined.
5. according to the described Novel permanent-magnet motor of claim 1 or 4, it is characterized in that also comprising rotor:
The structure of rotor comprises rotor driving wheel and driving wheel fixture, the permanent magnet that the rotor driving wheel is staggered installation of or bonding plane polarity is different, permanent magnet end surface shape and electromagnet core end surface shape are same or similar, the permanent magnet number is determined by the number of poles of stator, rotor driving wheel fixture location and fixed rotor driving wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220170807 CN202798174U (en) | 2012-04-22 | 2012-04-22 | Novel permanent magnet motor of discrete electromagnet stator structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220170807 CN202798174U (en) | 2012-04-22 | 2012-04-22 | Novel permanent magnet motor of discrete electromagnet stator structure |
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| CN202798174U true CN202798174U (en) | 2013-03-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9752558B2 (en) * | 2015-07-06 | 2017-09-05 | Nurielecom Co., Ltd. | Apparatus having a flywheel |
| CN110838764A (en) * | 2018-08-16 | 2020-02-25 | 奥的斯电梯公司 | Motor stator assembly, synchronous motor and passenger transportation device |
-
2012
- 2012-04-22 CN CN 201220170807 patent/CN202798174U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9752558B2 (en) * | 2015-07-06 | 2017-09-05 | Nurielecom Co., Ltd. | Apparatus having a flywheel |
| CN110838764A (en) * | 2018-08-16 | 2020-02-25 | 奥的斯电梯公司 | Motor stator assembly, synchronous motor and passenger transportation device |
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Granted publication date: 20130313 Termination date: 20140422 |