CN104124847A - Momentum wheel based on moving coil motor - Google Patents
Momentum wheel based on moving coil motor Download PDFInfo
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- CN104124847A CN104124847A CN201410356329.1A CN201410356329A CN104124847A CN 104124847 A CN104124847 A CN 104124847A CN 201410356329 A CN201410356329 A CN 201410356329A CN 104124847 A CN104124847 A CN 104124847A
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- outer casing
- coil
- momenttum wheel
- coil motor
- wheel based
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Disclosed is a momentum wheel based on a moving coil motor. The momentum wheel based on the moving coil motor is characterized in that a cavity is formed between an upper cover of a housing and a center support pillar of a housing bottom seat, an inner ring of a rotation shaft is fixed on the periphery of the center support pillar of the housing bottom seat, located in the cavity, a rotor iron core with a coil wound around is fixed on an outer ring of the rotation shaft in the cavity, the rotor iron core and the coil form a rotor portion of the momentum wheel, stator portions of the motor, which are permanent magnets, are respectively fixed on the upper portions and the lower portions of the rotor iron core and the coil, the upper cover of the housing and the inner wall of the housing bottom seat, the magnetizing direction of each permanent magnet is along the vertical direction, and a slide ring is placed in the cavity between the rotor iron core and the housing bottom seat. During the running process of the momentum wheel based on the moving coil motor, single phase direct voltage is input into the momentum wheel, and therefore electric current running fluctuation in the coil is small; relative positions of rotors and stators can not influence a magnetic circuit, and therefore external circuits which monitor positions of the rotors in real time are not needed, and circuit complexity is reduced; whole permanent magnets are used as the stators, and therefore magnetic field intensity in a space where the coil is located is high, and large torque can still be provided under the circumstance that electric currents are small.
Description
Technical field
The present invention relates to momenttum wheel technical field, be specifically related to a kind of momenttum wheel based on moving-coil motor.
Background technology
Existing momenttum wheel mainly adopts brshless DC motor as power source, these direct current machine operation principles are: stator is coil winding iron core, and coil is three-phase canoe, passes into three-phase dc electricity, direct current waveform is square wave, and between three-phase, phase place respectively differs 120 degree.When work, pass into electric current, between the air gap of coil and rotor permanent magnet, produce the magnetic field of rotation, drive permanent magnet rotating.It is as the shortcoming of momenttum wheel: need in the time of operation, measure the position of rotor, thereby adjust input current waveform and the phase place of motor, therefore need complicated driver circuit; Due to electric current commutation, operation fluctuation is larger, and especially under low cruise, performance is bad; Torque when actual motion is also little, can not be applied to the situation higher to torque request.
And for the momenttum wheel of another kind of structure based on disc type electric machine: the operation principle of disc type electric machine is identical with the operation principle of brshless DC motor, stator coil and mover magnet are all made as to plate-like, the magnetic circuit of motor is axially, therefore also referred to as brushless direct current motor with axial magnetic circuit.This motor is also three-phase square wave electric current due to what adopt, therefore also need in the time that motor moves, measure the position of rotor, increases the complexity of circuit for controlling motor; Also there is the problem of operation fluctuation simultaneously.
Summary of the invention
The problem existing in order to solve above-mentioned prior art, the object of the present invention is to provide a kind of momenttum wheel based on moving-coil motor; Momenttum wheel, in running, is input as single-phase DC voltage, and in coil, electric current is comparatively stable, and operation fluctuation is very little; Because the relative position of momenttum wheel rotor and stator does not affect magnetic circuit, therefore do not need to measure in real time the additional circuit of rotor-position, reduce the complexity of circuit; Because momenttum wheel stator adopts monoblock Nd-Fe-B permanent magnet, therefore the magnetic field intensity in space, coil place is higher, and larger torque still can be provided in the situation that electric current is less.
For reaching above object, the present invention adopts following technical scheme:
A kind of momenttum wheel based on moving-coil motor, comprise outer casing base 4, be fixed on the outer casing upper cover 1 on outer casing base 4, described outer casing upper cover 1 forms cavity with the center support intercolumniation of outer casing base 4, the inner ring of rotating shaft 7 is fixed on the outer border of cavity inside and outside shell base 4 central support posts, in cavity, on the outer ring of rotating shaft 7, be fixed with rotor core 5, coiling 2 on rotor core 5, rotor core 5 and the common rotor portion that forms momenttum wheel of coil 2, in top and the bottom of described rotor core 5 and coil 2, on the inwall of outer casing upper cover 1 and outer casing base 4, the stationary part of fixed electrical machinery is permanent magnet 3 respectively, its magnetizing direction is above-below direction, and it is that permanent magnet above 3 is downwards the N utmost point or the S utmost point that the magnetizing direction of two permanent magnets closes, permanent magnet 3 is upwards the N utmost point S utmost point, in cavity between rotor core 5 and outer casing base 4, place slip ring 6.
Described rotor core 5 adopts silicon steel sheet to be pressed into, and it is shaped as double-deck annular, the upper coiling 2 of outer shroud 5-1, and interior ring 5-2 and rotating shaft 7 are connected, and between interior ring 5-2 and outer shroud 5-1, are connected by the muscle 5-3 of company of four position symmetries.
The bearing of described rotating shaft 7 adopts angle bearing, is hollow ring, is fixed on the step of central support posts of outer casing base 4.
The material of described outer casing upper cover 1 and outer casing base 4 is No. 45 steel.
The material of described permanent magnet 3 is neodymium iron boron.
Described permanent magnet 3 adopts epoxy material to stick on respectively on the inwall of outer casing upper cover 1 and outer casing base 4.
Compared to the prior art, advantage of the present invention is as follows:
1, due to the structural design of momenttum wheel, rotor be coil winding on annulated column shape iron core, and stator permanent magnet lays respectively at the upper and lower of rotor, therefore the magnetic circuit of momenttum wheel is simple.Magnetic circuit, from the N utmost point of permanent magnet, by the coil of rotor one side, enter iron core, then by rotating shaft, outer casing base and upper cover is got back to the S utmost point of permanent magnet.
2, because the stator of momenttum wheel is a pair of complete permanent magnet, therefore the magnetic field of rotor coil part is comparatively even, and the electric current passing through in the Ampere force of generation and coil is linear, and therefore the controllability of momenttum wheel is stronger.And motor stator is monoblock permanent magnet, rotor is symmetrical iron-core coil, and therefore the situation of momenttum wheel operation is not subject to the position influence of rotor, does not need the control circuit of complicated real-time measurement rotor-position.
3, due to momenttum wheel be input as single-phase DC voltage, the electric current in coil is compared with more stable in three-phase situation, momenttum wheel operation fluctuation is little, in low speed situation, operation is also stable.
4, because momenttum wheel stator adopts overall permanent magnet, larger in the electromagnetic field intensity at rotor coil place, easily produce larger Ampere force, therefore higher torque can still can be provided under lower input voltage.
5,, because momenttum wheel rotor is coiling on iron core, therefore can increase according to actual needs or reduce easily coil turn, thereby change the performance of momenttum wheel.
Brief description of the drawings
Fig. 1 is the momenttum wheel generalized section that the present invention is based on moving-coil motor.
Fig. 2 is the structural representation of rotor core of the present invention.
Embodiment
Below in conjunction with Fig. 1, Fig. 2 and specific embodiment, the present invention is described in further detail.
As shown in Figure 1, a kind of momenttum wheel based on moving-coil motor of the present invention, comprise outer casing base 4, be fixed on the outer casing upper cover 1 on outer casing base 4, described outer casing upper cover 1 forms cavity with the center support intercolumniation of outer casing base 4, the inner ring of rotating shaft 7 is fixed on the outer border of cavity inside and outside shell base 4 central support posts, in cavity, on the outer ring of rotating shaft 7, be fixed with rotor core 5, coiling 2 on rotor core 5, rotor core 5 and the common rotor portion that forms momenttum wheel of coil 2, in top and the bottom of described rotor core 5 and coil 2, on the inwall of outer casing upper cover 1 and outer casing base 4, the stationary part of fixed electrical machinery is permanent magnet 3 respectively, its magnetizing direction is above-below direction, and it is that permanent magnet above 3 is downwards the N utmost point or the S utmost point that the magnetizing direction of two permanent magnets closes, permanent magnet 3 is upwards the N utmost point S utmost point.Because the rotor of momenttum wheel is coil, need slip ring to provide electric power for coil, in the cavity between rotor core 5 and outer casing base 4, place slip ring 6.
As the preferred embodiment of the present invention, described rotor core 5 adopts silicon steel sheet to be pressed into, and it is shaped as double-deck annular, the upper coiling 2 of outer shroud 5-1, interior ring 5-2 and rotating shaft 7 are connected, and between interior ring 5-2 and outer shroud 5-1, are connected by the muscle 5-3 of company of four position symmetries.
As the preferred embodiment of the present invention, the bearing of described rotating shaft 7 adopts angle bearing, is hollow ring, is fixed on the step of central support posts of outer casing base 4.
As the preferred embodiment of the present invention, the material of described outer casing upper cover 1 and outer casing base 4 is No. 45 steel.
As the preferred embodiment of the present invention, the material of described permanent magnet 3 is neodymium iron boron.
As the preferred embodiment of the present invention, described permanent magnet 3 adopts epoxy material to stick on respectively on the inwall of outer casing upper cover 1 and outer casing base 4.
Operation principle of the present invention is:
Because momenttum wheel adopts up-down structure, upper and lower two-layer stator is Nd-Fe-B permanent magnet, middle one deck is the rotor that enamelled wire coiling iron core forms, and permanent magnet is annulated column shape, magnetic field at rotor coil place is even, therefore for momenttum wheel, the size of current of passing through in the torque of its operation and coil is linear, and therefore the operation control of momenttum wheel is comparatively simple.
When momenttum wheel starts, load a starting resistor by slip ring 6 to coil 2 two ends, now in coil 2, pass through an electric current, and coil 2 is in the middle of the magnetic field that stator permanent magnet 3 produces, therefore produce Ampere force, the direction of power is tangential direction, because coil 2 is wound on rotor core 5, therefore drive whole rotor to rotate, momenttum wheel brings into operation.
After momenttum wheel brings into operation, can be according to the performance requirement of torque, rotating speed etc. for momenttum wheel, change the input voltage in input slip ring by additional control circuit, thereby the size of current in regulating rotary subcoil, the running status that changes momenttum wheel with this, meets our requirement to momenttum wheel.
Claims (6)
1. the momenttum wheel based on moving-coil motor, it is characterized in that: comprise outer casing base (4), be fixed on the outer casing upper cover (1) on outer casing base (4), described outer casing upper cover (1) forms cavity with the center support intercolumniation of outer casing base (4), the inner ring of rotating shaft (7) is fixed on the outer border of cavity inside and outside shell base (4) central support posts, on the outer ring of rotating shaft in cavity (7), be fixed with rotor core (5), the upper coiling (2) of rotor core (5), rotor core (5) and coil (2) form the rotor portion of momenttum wheel jointly, in top and the bottom of described rotor core (5) and coil (2), on the inwall of outer casing upper cover (1) and outer casing base (4), the stationary part of fixed electrical machinery is permanent magnet (3) respectively, its magnetizing direction is above-below direction, and it is that permanent magnet (3) is above downwards the N utmost point or the S utmost point that the magnetizing direction of two permanent magnets closes, permanent magnet (3) is upwards the N utmost point S utmost point, in cavity between rotor core (5) and outer casing base (4), place slip ring (6).
2. a kind of momenttum wheel based on moving-coil motor according to claim 1, it is characterized in that: described rotor core (5) adopts silicon steel sheet to be pressed into, it is shaped as double-deck annular, the upper coiling (2) of outer shroud (5-1), interior ring (5-2) is connected with rotating shaft (7), between interior ring (5-2) and outer shroud (5-1), is connected by company's muscle (5-3) of four position symmetries.
3. a kind of momenttum wheel based on moving-coil motor according to claim 1, is characterized in that: the bearing of described rotating shaft (7) adopts angle bearing, is hollow ring, is fixed on the step of central support posts of outer casing base (4).
4. a kind of momenttum wheel based on moving-coil motor according to claim 1, is characterized in that: the material of described outer casing upper cover (1) and outer casing base (4) is No. 45 steel.
5. a kind of momenttum wheel based on moving-coil motor according to claim 1, is characterized in that: the material of described permanent magnet (3) is neodymium iron boron.
6. a kind of momenttum wheel based on moving-coil motor according to claim 1, is characterized in that: described permanent magnet (3) adopts epoxy material to stick on respectively on the inwall of outer casing upper cover (1) and outer casing base (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356329.1A CN104124847B (en) | 2014-07-24 | 2014-07-24 | A kind of momenttum wheel based on moving-coil motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356329.1A CN104124847B (en) | 2014-07-24 | 2014-07-24 | A kind of momenttum wheel based on moving-coil motor |
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| Publication Number | Publication Date |
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| CN104124847A true CN104124847A (en) | 2014-10-29 |
| CN104124847B CN104124847B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410356329.1A Active CN104124847B (en) | 2014-07-24 | 2014-07-24 | A kind of momenttum wheel based on moving-coil motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842221A (en) * | 2017-03-16 | 2017-06-13 | 西安交通大学 | A kind of multi-thread 360 ° of scanning type laser radars and its implementation |
| CN106872991A (en) * | 2017-01-17 | 2017-06-20 | 西安交通大学 | Scanning laser active probe device and implementation method based on annular external rotor electric machine |
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| US4593798A (en) * | 1983-05-02 | 1986-06-10 | Canadian Fram Limited | Idle restart clutching system |
| CN1035398A (en) * | 1987-09-15 | 1989-09-06 | 克拉克汽车发展有限公司 | Motor or alternating current generator |
| CN2239676Y (en) * | 1995-11-03 | 1996-11-06 | 常州经济技术开发区金达利服装公司 | High effective disk-like permanent-magnet d.c motor |
| CN101295906A (en) * | 2008-04-28 | 2008-10-29 | 刘盛荣 | Side sensing type permanent magnetic DC motor |
| CN103580323A (en) * | 2012-07-31 | 2014-02-12 | 成都联腾动力控制技术有限公司 | Rotor improvement structure of wide-range-timing permanent magnet synchronous motor |
| CN103944292A (en) * | 2013-01-17 | 2014-07-23 | 株式会社电装 | Axial clearance type rotating electric machine, stator thereof, manufacturing method of the stator, and wheel |
-
2014
- 2014-07-24 CN CN201410356329.1A patent/CN104124847B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4593798A (en) * | 1983-05-02 | 1986-06-10 | Canadian Fram Limited | Idle restart clutching system |
| CN1035398A (en) * | 1987-09-15 | 1989-09-06 | 克拉克汽车发展有限公司 | Motor or alternating current generator |
| CN2239676Y (en) * | 1995-11-03 | 1996-11-06 | 常州经济技术开发区金达利服装公司 | High effective disk-like permanent-magnet d.c motor |
| CN101295906A (en) * | 2008-04-28 | 2008-10-29 | 刘盛荣 | Side sensing type permanent magnetic DC motor |
| CN103580323A (en) * | 2012-07-31 | 2014-02-12 | 成都联腾动力控制技术有限公司 | Rotor improvement structure of wide-range-timing permanent magnet synchronous motor |
| CN103944292A (en) * | 2013-01-17 | 2014-07-23 | 株式会社电装 | Axial clearance type rotating electric machine, stator thereof, manufacturing method of the stator, and wheel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872991A (en) * | 2017-01-17 | 2017-06-20 | 西安交通大学 | Scanning laser active probe device and implementation method based on annular external rotor electric machine |
| CN106842221A (en) * | 2017-03-16 | 2017-06-13 | 西安交通大学 | A kind of multi-thread 360 ° of scanning type laser radars and its implementation |
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| Publication number | Publication date |
|---|---|
| CN104124847B (en) | 2016-05-04 |
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