CN1050240C - Efficient multiple-state electric motor - Google Patents
Efficient multiple-state electric motor Download PDFInfo
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- CN1050240C CN1050240C CN97111948A CN97111948A CN1050240C CN 1050240 C CN1050240 C CN 1050240C CN 97111948 A CN97111948 A CN 97111948A CN 97111948 A CN97111948 A CN 97111948A CN 1050240 C CN1050240 C CN 1050240C
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Abstract
The present invention relates to a high-efficiency multi-state electric motor which comprises a shaft, a casing, a stator core, a rotor core, a stator yoke, a radial excition winding, an end cover, a cage-shaped winding, etc. The present invention can be in an outer rotor structure and can also be an inner rotor structure. The electric motor of the present invention respectively works in the states of a hybrid stepping electric motor or an axial excitation type low-speed synchronous electric motor and an asynchronous electric motor through the reasonable conversion of the phase number of the electric motor, the frequency of a driving power supply and the size and the direction of the current of a wave-shaped excitation coil and an axial excitation coil when working in low speed and high speed, and the present invention has the advantages of high comprehensive performance of high speed and low speed, wide range of running speed, vibration inhibition and large torque and volume ratio.
Description
The present invention relates to a kind of motor, especially a kind of efficient multiple-state electric motor that synchronous motor and Induction Motor Structure is combined, has the advantage of two kinds of motor.
It is very big to export torque when traditional hybrid type stepping motor or axial excitation-type low-speed synchronous motor are operated in low speed, and owing to the very fast decline of torque load capacity is descended rapidly when high speed; Efficient was very high when traditional asynchronous motor was operated in high speed, the increase decrease in efficiency of when low speed, decreasing owing to steel, that is to say that hybrid type stepping motor or axial excitation-type low-speed synchronous motor have low-speed characteristic preferably, and asynchronous motor there is high speed characteristics preferably.If the structure of two kinds of motor organically can be combined, utilize their advantages separately, then will obtain all good motor of a kind of high low-speed performance.
The object of the present invention is to provide a kind of with hybrid type stepping motor or axially the structure of excitation-type low-speed synchronous motor and asynchronous motor organically combine, all good motor of high low-speed performance.
Motor of the present invention comprises axle, casing, stator core, rotor core, stator yoke, radially excitation winding, axial parts such as magnet exciting coil, end cap and cage modle winding.Motor both can be outer-rotor structure, also can be inner rotor core.
When motor is outer-rotor structure, two stator yoke are contained on the axle, place axial magnet exciting coil between two stator yoke, two sections stator cores are contained in respectively on two stator yoke, two stator core outer surfaces have the big utmost point or teeth groove, in the window of big interpolar or place radially excitation winding in the groove, the two-stage rotor iron core is housed in the casing, the two-stage rotor iron core is relative with two sections stator cores respectively, fixed, very little air gap is arranged between rotor core, the rotor core surface also has teeth groove, dispose the cage modle winding in the rotor core, the cage type winding comprises sliver and end ring etc., two-stage rotor iron core 1/2nd rotor slot-pitches that along the circumferential direction stagger mutually, be that the two-stage rotor core tooth is to groove, be placed with sliver in some grooves on two-stage rotor surface unshakable in one's determination, place a shared short-circuited conducting sleeve between the two-stage rotor iron core, an end ring is respectively placed with each sliver short circuit in two ends, an end cap is respectively adorned at the motor two ends, between end cap and casing screw is arranged, securing members such as bolt connect, and place bearing between end cap and the axle, radially the lead-out wire of excitation winding and axial magnet exciting coil is by drawing in the middle of axle surface or the axle.
When motor is inner rotor core, two stator yoke are housed in the casing, place axial magnet exciting coil between two stator yoke, two sections stator cores are contained in respectively on two stator yoke, two stator core inner surfaces have the big utmost point or teeth groove, in the window of big interpolar or place radially excitation winding in the groove, on the axle two-stage rotor iron core is housed, the two-stage rotor iron core is relative with two sections stator cores respectively, fixed, very little air gap is arranged between rotor core, the rotor core surface also has teeth groove, disposes the cage modle winding in the rotor core, and cage type winding part is identical during with outer-rotor structure, an end cap is respectively adorned at the motor two ends, between end cap and casing screw is arranged, securing members such as bolt connect, and place bearing between end cap and the axle, and radially the lead-out wire of excitation winding and axial magnet exciting coil is drawn by the hole between end cap end face or end cap disc or end cap and casing.
Cage type winding part in the motor of the present invention also can connect one to one the sliver in the two-stage rotor core slots or directly run through in the groove of two-stage rotor iron core with whole sliver, two ends each with an end ring with each sliver short circuit, also can be at the two ends of every section rotor core respectively with an end ring with the sliver short circuit in this section core slots.
Stator core and rotor core are built up by silicon steel sheet or are made by the monoblock soft magnetic material, and stator yoke is made with permeability magnetic material, and axle, casing and end cap can be magnetic conduction or non-magnet_conductible material.No matter motor is outer-rotor structure or inner rotor core, all can place the permanent magnet of axial charging between two sections stator cores or two-stage rotor iron core.For changeing outward in structure, when permanent magnet was placed between two sections stator cores, axle was a non-magnet_conductible material; When permanent magnet was placed between the two-stage rotor iron core, casing was a non-magnet_conductible material.For inner rotor core, when permanent magnet was placed between two sections stator cores, casing was a non-magnet_conductible material; When permanent magnet was placed between the two-stage rotor iron core, axle was a non-magnet_conductible material.
When not placing the permanent magnet of axial charging in the motor, motor is work like this: during low speed, axially magnet exciting coil passes to direct current, give radially excitation winding by hybrid type stepping motor or axially excitation-type low-speed synchronous motor mode power, then motor is as hybrid type stepping motor or axially excitation-type low-speed synchronous motor operation.At this moment regulating shaft is to magnet exciting coil or the size of electric current in the excitation winding radially, then can change the output torque of motor, change sense of current in the axial magnet exciting coil, motor turns to constant: during high speed, axial magnet exciting coil no power, power for radially excitation winding by the asynchronous motor mode, then motor moves as asynchronous motor.
When placing the permanent magnet of axial charging in the motor, motor is work like this: during low speed, axial magnet exciting coil no power or logical direct current, the air-gap flux direction that it is produced is consistent with the air-gap flux direction that permanent magnet produces, promptly be in and increase magnetic state, give radially excitation winding by hybrid type stepping motor or axially excitation-type low-speed synchronous motor mode power, then motor is as hybrid type stepping motor or axially excitation-type low-speed synchronous motor operation.At this moment regulating shaft is to magnet exciting coil or the size of electric current in the excitation winding radially, then can change the output torque of motor, when increase within the specific limits the two one of in electric current or when increasing electric current in the two simultaneously, the output torque of motor increases, and then the torque variation is not obvious to surpass certain limit; During high speed, give axial magnet exciting coil logical direct current, the air-gap flux direction that it is produced is opposite with the air-gap flux direction that permanent magnet produces, promptly be in demagnetizing state, the electric current of regulating shaft in magnet exciting coil, and use the sensor measurement air-gap flux, when air-gap flux smaller, promptly approach zero but greater than zero the time, power for radially excitation winding by the asynchronous motor mode, then motor moves as asynchronous motor.
The size of current and the direction of the number of phases by reasonable converting motor, frequency, waveform and the axial magnet exciting coil of driving power, motor of the present invention works in hybrid type stepping motor or axial excitation-type low-speed synchronous motor and asynchronous motor state respectively when low speed and high speed, have higher high low speed combination property, and have the operational speed range of broad.The present invention compares with traditional hybrid type stepping motor or axial excitation-type low-speed synchronous motor, and vibration reduces, and therefore can obtain bigger torque volume ratio, can be used for the equipment of electric motor car and other Fraquent start and acceleration and deceleration control.
The present invention is described in more detail below in conjunction with drawings and Examples.
Fig. 1～Fig. 8 is respectively the vertical section schematic diagram of eight embodiment of efficient multiple-state electric motor of the present invention;
Fig. 9 is the configuration schematic diagram of cage modle winding part in the efficient multiple-state electric motor of the present invention.
First embodiment of the present invention as shown in Figure 1 is an outer-rotor structure, the stator yoke 5 of two magnetic conductions is contained on the axle 1, the magnetic core 9 of axial magnet exciting coil 7 and magnetic conduction is housed between two stator yoke 5, axially magnet exciting coil 7 is enclosed within the outside of magnetic core 9, the shape of magnetic core 9 can be the annular that inner surface or outer surface have ladder or gradient, two sections stator cores 3 are contained in respectively on two stator yoke 5, two stator cores, 3 outer surfaces have the big utmost point, big extremely surface has little teeth groove, in the window of big interpolar, place radially excitation winding 6, place magnetism-isolating loop 13 between two sections stator cores 3, in the casing 2 of magnetic conduction two-stage rotor iron core 4 is housed, two-stage rotor iron core 4 is relative with two sections stator cores 3 respectively, and is fixed, very little air gap is arranged, rotor core between rotor core; The surface also has teeth groove, its shape can be circular arc, triangle, anti-triangle, rectangle or pyriform etc., dispose the cage type winding in the rotor core 4, shown in Fig. 9 (a), the cage type winding comprises sliver 19 and end ring 18 etc., two-stage rotor iron core 4 1/2nd rotor slot-pitches that along the circumferential direction stagger mutually, be 20 pairs of grooves of two-stage rotor core tooth, be placed with sliver 19 in some grooves on two-stage rotor 4 surfaces unshakable in one's determination, the degree of depth of these grooves can be identical, also can be different, place a shared short-circuited conducting sleeve 17 between the two-stage rotor iron core 4, an end ring 18 is respectively placed with each sliver 19 short circuit in two ends, and 2 of shared short-circuited conducting sleeve 17 and casings can be placed magnetic guiding loop 10.An end cap 8 respectively is equipped with at the motor two ends, is connected with screw 11 between end cap 8 and the casing 2, places bearing 12 between end cap 8 and the axle 1, radially draws in excitation winding 6 and the groove that axially lead-out wire of magnet exciting coil 7 is opened by axle 1 surface.
The motor of present embodiment is work like this: during low speed, pass to direct current for axial magnet exciting coil 7, axially the magnetic flux path of magnet exciting coil 7 generations as shown in phantom in Figure 1, give radially excitation winding 6 by hybrid type stepping motor or axially excitation-type low-speed synchronous motor mode power, then motor is as hybrid type stepping motor or axially excitation-type low-speed synchronous motor operation, and axially magnet exciting coil 7 is switched on forward or backwards to the not influence of runnability of motor.At this moment, increase the electric current in the axial magnet exciting coil 7 within the specific limits or increase the electric current in the excitation winding 6 radially or increase electric current in the two simultaneously, the output torque of motor is increased.When as hybrid type stepping motor or when axially the output torque of the motor of excitation-type low-speed synchronous motor operation drops to a certain degree, stop to axial magnet exciting coil 7 power supplies, holding mode by asynchronous electric for simultaneously radially excitation winding 6 powers, at this moment radially the magnetic field of excitation winding 6 generations and cage modle winding interact, motor is moved as asynchronous motor, can control by the control method of traditional squirrel-cage asynchronous motor.
During low cruise, switching motor is the number of phases of excitation winding 6 radially, can change the speed of service of motor.In the present embodiment, adopt conversion by 15 phases → 5 phases → 3 phases, when switch to 3 mutually after, the frequency that can change driving power is adjusted electromotor velocity, the waveform that changes the driving power output signal can change the performance of motor; During high speed, by changing radially excitation winding 6 and the axially input signal of magnet exciting coil 7, motor moves as three phase squirrel cage induction motor.
Second embodiment of the present invention as shown in Figure 2 also is outer-rotor structure, it and first embodiment are basic identical, its difference is: be not to place magnetism-isolating loop 13 between two stator cores 3, but the permanent magnet 14 of placement axial charging, axle 1 is a non-magnet_conductible material, must place magnetic core 9 between axle 1 and the axial magnet exciting coil 7.
The motor of present embodiment is work like this: during low speed, axial magnet exciting coil 7 no powers or logical direct current, the air-gap flux direction that it is produced is consistent with the air-gap flux direction that permanent magnet 14 produces, promptly be in and increase magnetic state, the magnetic flux path that permanent magnet 14 produces and axially the magnetic flux path that produces of magnet exciting coil 7 be the magnetic flux path of permanent magnet 14 generations wherein as shown in phantom in Figure 2 with arrow.Give radially excitation winding 6 by hybrid type stepping motor or axially excitation-type low-speed synchronous motor mode power, then motor is as hybrid type stepping motor or axially excitation-type low-speed synchronous motor operation.Axially magnet exciting coil 7 energisings are compared with no power, and the output torque of motor increases during energising.Increase the electric current in the axial magnet exciting coil 7 within the specific limits or increase the electric current in the excitation winding 6 radially or increase electric current in the two simultaneously, the output torque of motor is increased, surpass this scope then torque change not obvious.When as hybrid type stepping motor or when axially the output torque of the motor of excitation-type low-speed synchronous motor operation drops to a certain degree, pass to direct current for axial magnet exciting coil 7, the air-gap flux direction that it is produced is opposite with the air-gap flux direction that permanent magnet 14 produces, promptly be in demagnetizing state, the electric current of regulating shaft in magnet exciting coil 7, and use the sensor measurement air-gap flux, when air-gap flux smaller, be that air-gap flux that axial magnet exciting coil 7 produces is when being slightly less than the air-gap flux that permanent magnet 14 produces, power for radially excitation winding 6 by the asynchronous motor mode, at this moment radially the magnetic field of excitation winding 6 generations and cage modle winding interact, motor is moved as asynchronous motor, can control by the control method of traditional squirrel-cage asynchronous motor.
The method of adjustment of the motor of present embodiment is identical with first embodiment.
The 3rd embodiment of the present invention as shown in Figure 3 also is outer-rotor structure, and it and first embodiment are basic identical, and its difference is: be not to place magnetic guiding loop 10 between two rotor cores 4, but place the permanent magnet 14 of axial charging, casing 2 is a non-magnet_conductible material.
The operation principle of the motor of present embodiment is identical with second embodiment with method of adjustment.
The 4th embodiment of the present invention as shown in Figure 4 still is outer-rotor structure, it and second embodiment are basic identical, its difference is: be not to place magnetic core 9 between magnet exciting coil 7 and the axle 1 axially, but the slide block 15 of placement magnetic conduction, couple together with placing 16, two stator yoke of spring, 5 usefulness screws 11 in stator yoke 5 sides and slide block 15 sides.
The motor of present embodiment is work like this: during low speed, axial magnet exciting coil 7 no powers or logical direct current, the air-gap flux direction that it is produced is consistent with the air-gap flux direction that permanent magnet 14 produces, promptly be in and increase magnetic state, the magnetic flux path that permanent magnet 14 produces and axially the magnetic flux path that produces of magnet exciting coil 7 as shown in phantom in Figure 4, wherein with the magnetic flux path for the permanent magnet generation of arrow.The magnetic flux path that permanent magnet 14 produces has two: a process air gap, a process slide block 15 during magnetic Circuit Design, makes the air-gap magnetic circuit magnetic conductance much larger than slide block magnetic circuit magnetic conductance.If axial magnet exciting coil 7 no powers, then since slide block magnetic circuit magnetic conductance much smaller than the air-gap magnetic circuit magnetic conductance, very little by the permanent magnet magnetic flux of slide block 15, the magnetic attraction that slide block 15 and stator yoke are 5 is less than the elastic force of spring 16, slide block 15 and stator yoke 5 are in the state of flicking.If pass to direct current for axial magnet exciting coil 7, when electric current still is in the state of flicking than hour slide block 15 and stator yoke 5; When electric current increased to a certain degree, the magnetic attraction that the magnetic flux by slide block 15 produces was greater than the elastic force of spring 16, and then slide block 15 is in attracting state with stator yoke 5.Like this, axially during magnet exciting coil 7 no powers, slide block magnetic circuit magnetic resistance is bigger, and the magnetic flux that pass through slide block 15 that permanent magnet 14 produces is less, and it is very big to pass through the magnetic flux of air gap, thereby has improved the utilance of permanent magnet 14.When axially magnet exciting coil 7 energisings and electric current were big, slide block magnetic circuit magnetic resistance was less, and the air-gap flux that axial magnet exciting coil 7 produces is bigger, thereby had improved the action effect of axial magnet exciting coil 7.Give radially excitation winding 6 by hybrid type stepping motor or axially excitation-type low-speed synchronous motor mode power, then motor is as hybrid type stepping motor or axially excitation-type low-speed synchronous motor operation.Axially magnet exciting coil 7 energisings are compared with no power, the output torque of motor increases during energising, increase the electric current in the axial magnet exciting coil 7 within the specific limits or increase the electric current in the excitation winding 6 radially or increase electric current in the two simultaneously, the output torque of motor is increased.When as hybrid type stepping motor or when axially the output torque of the motor of excitation-type low-speed synchronous motor operation drops to a certain degree, pass to direct current for axial magnet exciting coil 7, the air-gap flux direction that it is produced is opposite with the air-gap flux direction that permanent magnet 14 produces.Promptly be in demagnetizing state, the electric current of regulating shaft in magnet exciting coil 7, and use the sensor measurement air-gap flux, when air-gap flux smaller, be air-gap flux that axial magnet exciting coil 7 produces when being slightly less than the air-gap flux that permanent magnet 14 produces, power for radially excitation winding 6 by the asynchronous motor mode, at this moment the magnetic field and the interaction of cage modle winding that produce of excitation winding 6 radially, motor is moved as asynchronous motor, can control by the control method of traditional squirrel-cage asynchronous motor.
The method of adjustment of the motor of present embodiment is identical with second embodiment.
The 5th embodiment of the present invention as shown in Figure 5 is inner rotor core, the stator yoke 5 of two magnetic conductions is contained in the casing 2, between two stator yoke 5, the magnetic core 9 of axial magnet exciting coil 7 and magnetic conduction is housed, magnetic core 9 is enclosed within the outside of axial magnet exciting coil 7, magnetic core 9 can be the annular that inner surface or outer surface have ladder or gradient, two sections stator cores 3 are contained in respectively on two stator yoke 5, two stator cores, 3 inner surfaces have the big utmost point, big extremely surface has little teeth groove, in the window of big interpolar, place radially excitation winding 6, place magnetism-isolating loop 13 between two sections stator cores 3, on the axle 1 two-stage rotor iron core 4 is housed, two-stage rotor iron core 4 is relative with two sections stator cores 3 respectively, fixed, very little air gap is arranged between rotor core, rotor core 4 surfaces also have teeth groove, two-stage rotor iron core 4 1/2nd rotor slot-pitches that along the circumferential direction stagger mutually, be that the two-stage rotor core tooth is to groove, be placed with sliver in some grooves on two-stage rotor 4 surfaces unshakable in one's determination, place a shared short-circuited conducting sleeve 17 between the two-stage rotor iron core 4, an end ring 18 is respectively placed with each sliver 19 short circuit in two ends, and shared short-circuited conducting sleeve 17 and 1 on axle can be placed magnetic guiding loop 10.An end cap 8 respectively is equipped with at the motor two ends, is connected with screw 11 between end cap 8 and the casing 2, place between end cap 8 and the axle 1 bearing 12, radially excitation winding 6 and axially the lead-out wire of magnet exciting coil 7 draw by the hole of end cap 8 sides.
The operation principle of the motor of present embodiment is identical with first embodiment with method of adjustment.
The 6th embodiment of the present invention as shown in Figure 6 also is inner rotor core, it and the 5th embodiment are basic identical, its difference is: be not to place magnetism-isolating loop 13 between two stator cores 3, but the permanent magnet 14 of placement axial charging, casing 2 is a non-magnet_conductible material, must place magnetic core 9 between casing 2 and the axial magnet exciting coil 7.
The operation principle of the motor of present embodiment is identical with second embodiment with method of adjustment.
The 7th embodiment of the present invention as shown in Figure 7 also is inner rotor core, and it and the 5th embodiment are basic identical, and its difference is: be not to place magnetic guiding loop 10 between two rotor cores 4, but place the permanent magnet 14 of axial charging, axle 1 is a non-magnet_conductible material.
The operation principle of the motor of present embodiment is identical with the 3rd embodiment with method of adjustment.
The 8th embodiment of the present invention as shown in Figure 8 still is inner rotor core, it and the 6th embodiment are basic identical, its difference is: axially be not to place magnetic core 9 between magnet exciting coil 7 and the casing 2, but the slide block 15 of placement magnetic conduction, placing 16, two stator yoke of spring, 5 usefulness screws 11 between stator yoke 5 sides and slide block 15 sides couples together.
The operation principle of the motor of present embodiment is identical with the 4th embodiment with method of adjustment.
The cage modle winding part of efficient multiple-state electric motor of the present invention shown in Fig. 9 (a) and (b), comprise sliver 19 and end ring 18 etc., in the middle of two-stage rotor unshakable in one's determination 4, place shared short-circuited conducting sleeve 17 with 19 short circuits of the sliver in the two-stage rotor core slots, at two-stage rotor 4 non-conterminous two ends unshakable in one's determination each with an end ring 18 with each sliver 19 short circuit; Also can be shown in Fig. 9 (c), sliver in the two-stage rotor core slots 19 is connected one to one, two ends each with an end ring 18 with each sliver 19 short circuit, or shown in Fig. 9 (d), at the two ends of every section rotor core 4 respectively with an end ring 18 with 19 short circuits of the sliver in this section core slots.
Claims (10)
1. efficient multiple-state electric motor, comprise axle (1), casing (2), stator core (3), rotor core (4), stator yoke (5), excitation winding (6) radially, axial magnet exciting coil (7), parts such as end cap (8) and cage modle winding, it is characterized in that: when motor is outer-rotor structure, two stator yoke (5) are contained on the axle (1), place axial magnet exciting coil (7) between two stator yoke (5), two sections stator cores (3) are contained in respectively on two stator yoke (5), two stator cores (3) outer surface has the big utmost point or teeth groove, in the window of big interpolar or place radially excitation winding (6) in the groove, two-stage rotor iron core (4) is housed in the casing (2), two-stage rotor iron core (4) is relative with two sections stator cores (3) respectively, between stator core (3) and rotor core (4) very little air gap is arranged, rotor core (4) surface also has teeth groove, rotor core is disposed the cage modle winding on (4), the cage type winding comprises sliver (19) and end ring (18) etc., two-stage rotor iron core (4) 1/2nd rotor slot-pitches that along the circumferential direction stagger mutually, be that two-stage rotor iron core (4) tooth is to groove, be placed with sliver (19) in some grooves on two-stage rotor iron core (4) surface, place a shared short-circuited conducting sleeve (17) between the two-stage rotor iron core (4), an end ring (18) is placed fully with each sliver (19) short circuit in two ends, an end cap (8) is respectively adorned at the motor two ends, between end cap (8) and casing (2) screw (11) is arranged, securing members such as bolt connect, place bearing (12) between end cap (8) and the axle (1), radially the lead-out wire of excitation winding (6) and axial magnet exciting coil (7) is by drawing in the middle of axle (1) surface or the axle (1).
2. efficient multiple-state electric motor, comprise axle (1), casing (2), stator core (3), rotor core (4), stator yoke (5), excitation winding (6) radially, axial magnet exciting coil (7), parts such as end cap (8) and cage modle winding, it is characterized in that: when motor is inner rotor core, two stator yoke (5) are housed in the casing (2), place axial magnet exciting coil (7) between two stator yoke (5), two sections stator cores (3) are contained in respectively on two stator yoke (5), two stator cores (3) inner surface has the big utmost point or teeth groove, in the window of big interpolar or place radially excitation winding (6) in the groove, on the axle (1) two-stage rotor iron core (4) is housed, two-stage rotor iron core (4) is relative with two sections stator cores (3) respectively, between stator core (3) and rotor core (4) very little air gap is arranged, rotor core (4) surface also has teeth groove, rotor core is disposed the cage modle winding on (4), the cage type winding comprises sliver (19) and end ring (18) etc., two-stage rotor iron core (4) 1/2nd rotor slot-pitches that along the circumferential direction stagger mutually, be that two-stage rotor iron core (4) tooth is to groove, be placed with sliver (19) in some grooves on two-stage rotor iron core (4) surface, place a shared short-circuited conducting sleeve (17) between the two-stage rotor iron core (4), an end ring (18) is respectively placed with each sliver (19) short circuit in two ends, an end cap (8) is respectively adorned at the motor two ends, between end cap (8) and casing (2) screw (11) is arranged, securing members such as bolt connect, place bearing (12) between end cap (8) and the axle (1), radially the lead-out wire of excitation winding (6) and axial magnet exciting coil (7) is drawn by the hole between end cap (8) end face or end cap (8) disc or end cap (8) and casing (2).
3. motor according to claim 1, it is characterized in that: the permanent magnet (14) of placing axial charging between two stator cores (3), between axle (1) and the axial magnet exciting coil (7) magnetic core (9) is housed, magnetic core (9) be shaped as the annular that inner surface or outer surface have ladder or gradient, axle (1) is a non-magnet_conductible material.
4. motor according to claim 1 is characterized in that: place the permanent magnet (14) of axial charging between two rotor cores (4), casing (2) is a non-magnet_conductible material.
5. motor according to claim 2, it is characterized in that: the permanent magnet (14) of placing axial charging between two stator cores (3), between casing (2) and the axial magnet exciting coil (7) magnetic core (9) is housed, magnetic core (9) be shaped as the annular that inner surface or outer surface have ladder or gradient, casing (2) is a non-magnet_conductible material.
6. motor according to claim 2 is characterized in that: place the permanent magnet (14) of axial charging between two rotor cores (4), axle (1) is a non-magnet_conductible material.
7. motor according to claim 1 and 2, it is characterized in that: place magnetism-isolating loop (13) between two stator cores (3), place magnetic guiding loop (10) between two rotor cores (4), stator core (3) and rotor core (4) are built up by silicon steel sheet or are made by the monoblock soft magnetic material, and stator yoke (5) is made with permeability magnetic material.
8. motor according to claim 1 and 2, it is characterized in that: the slide block (15) of placing magnetic conduction between two stator yoke (5), slide block (15) be shaped as the annular that inner surface or outer surface have ladder or gradient, place spring (16) between stator yoke (a 5) side and slide block (15) side, two stator yoke (5) connect with screw (11).
9. according to each described motor in the claim 1～6, it is characterized in that: in the cage type winding of motor part, the sliver (19) two-stage rotor iron core (4) groove in is connected one to one or directly runs through in the groove of two-stage rotor iron core (4) with whole sliver (19), two ends respectively with an end ring (18) with each sliver (19) short circuit.
10. according to each described motor in the claim 1～6, it is characterized in that: in the cage type winding of motor part at the two ends of every section rotor core (4) each with an end ring (18) with the sliver in this section core slots (19) short circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97111948A CN1050240C (en) | 1997-07-07 | 1997-07-07 | Efficient multiple-state electric motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97111948A CN1050240C (en) | 1997-07-07 | 1997-07-07 | Efficient multiple-state electric motor |
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| CN1182302A CN1182302A (en) | 1998-05-20 |
| CN1050240C true CN1050240C (en) | 2000-03-08 |
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| CN97111948A Expired - Fee Related CN1050240C (en) | 1997-07-07 | 1997-07-07 | Efficient multiple-state electric motor |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2444296B (en) * | 2006-11-27 | 2011-09-28 | Anthony Edwin Botsman | Radial/axial dynamo electric machine (dem) |
| JP2013031342A (en) * | 2011-07-29 | 2013-02-07 | Shinano Kenshi Co Ltd | Hybrid stepping motor |
| CN103132987B (en) * | 2013-02-25 | 2015-09-09 | 中国石油天然气集团公司 | A kind of three-component inductive coil series probe string-passing structure |
| CN108649765A (en) * | 2018-06-30 | 2018-10-12 | 淮阴工学院 | A kind of outer rotor five degrees of freedom without bearing switched reluctance machines |
| CN109217602B (en) * | 2018-11-05 | 2020-04-10 | 山东大学 | Multiphase permanent magnet synchronous driving motor, application and method thereof |
| CN109842257B (en) * | 2019-03-04 | 2021-06-15 | 哈尔滨工业大学 | Inverse salient pole type axial parallel multiphase permanent magnet fault-tolerant motor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5057726A (en) * | 1990-10-10 | 1991-10-15 | Westinghouse Electric Corp. | Structureborne vibration-compensated motor arrangement having back-to-back twin AC motors |
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1997
- 1997-07-07 CN CN97111948A patent/CN1050240C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5057726A (en) * | 1990-10-10 | 1991-10-15 | Westinghouse Electric Corp. | Structureborne vibration-compensated motor arrangement having back-to-back twin AC motors |
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| CN1182302A (en) | 1998-05-20 |
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