CN109302026A - A kind of bicyclic set magnet permanent motor of diametrical magnetization - Google Patents
A kind of bicyclic set magnet permanent motor of diametrical magnetization Download PDFInfo
- Publication number
- CN109302026A CN109302026A CN201811276980.2A CN201811276980A CN109302026A CN 109302026 A CN109302026 A CN 109302026A CN 201811276980 A CN201811276980 A CN 201811276980A CN 109302026 A CN109302026 A CN 109302026A
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- China
- Prior art keywords
- ring
- rotor
- steel ring
- magnet steel
- axis
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/04—Machines with one rotor and two stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2793—Rotors axially facing stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/26—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of printed conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The present invention relates to a kind of bicyclic set magnet permanent motors of diametrical magnetization, including rotor, stator, thrust plate, nut and axis, rotor is by rotor ring, outer steel ring, interior magnet steel ring and bearer ring composition, the inner surface of outer steel ring is working face, the outer surface of interior magnet steel ring is working face, outer steel ring and interior magnet steel ring are mounted on rotor ring, the rotor ring, which is mounted in the outer circle of bearer ring, forms rotor, axis is mounted in the bearing hole of armature spindle carrier ring, two thrust plates are installed on the left and right sides of armature spindle carrier ring, two stators are separately mounted to two ends of rotor, and it is secured with nuts on axis, and two stators are connected according to series system.This intellectual achievement realizes radial double magnet steel ring structures in the application of through-hole type hydrodynamic gas-lubricated bearing three-phase motor with permanent magnets, improve the efficiency of motor, reduce heating in winding, reduce gyroscope temperature gradient, mass center drift, improve accuracy of instrument, it is technologically advanced, filled up China in the blank of technique.
Description
Technical field
The present invention relates to magneto technical field, especially a kind of bicyclic set magnet permanent motor of diametrical magnetization.
Background technique
Under normal circumstances, magneto mostly uses diametrical magnetization monocycle magnet steel to establish permanent magnetic field, to reduce motor function
Rate loss, is often designed to darsonval type structure, cancels stator core construction, to eliminate stator core loss, but this structure
So that motor working gas gap is very big, it is necessary to using high performance magnet steel or increase magnet steel size, can establish needed for motor operating
Air-gap field.Therefore big to the magnetic property requirements height of magnet steel, demand, product qualification rate is low, manufacturing cost is high, while motor
Operating current is big, and heating in winding is high, low efficiency.In addition above structure is larger in axial leakage field.
Summary of the invention
In place of making up the deficiencies in the prior art, a kind of bicyclic set magnet permanent electricity of diametrical magnetization is provided
Machine.
The purpose of the present invention is what is realized by following technological means:
A kind of bicyclic set magnet permanent motor of diametrical magnetization, it is characterised in that: stop including a rotor, two stators, two
Push plate, two nuts and an axis, rotor is by a rotor ring, two outer steel rings, two interior magnet steel rings and a bearer ring
Composition, the inner surface of outer steel ring are working face, and the outer surface of interior magnet steel ring is working face, outer steel ring and the installation of interior magnet steel ring
On rotor ring, which, which is mounted in the outer circle of bearer ring, forms rotor；Axis is mounted in the bearing hole of armature spindle carrier ring,
The two forms the bearing of journals；Two thrust plates are installed on the left and right sides of armature spindle carrier ring, and bearer ring or so end face is stopped with two
Push plate forms thrust bearing pair；Two stators are separately mounted to two ends of rotor, and are secured with nuts on axis, and two stators are pressed
It is connected according to series system.
Moreover, two outer steel rings and two interior magnet steel rings can be carried out pairing according to magnetism, rotor side it is outer
Magnet steel ring, interior magnet steel ring answer relationship pair according to pole pair.
Moreover, the outer steel ring, interior magnet steel ring are all made of the identical permanent magnetic multi-pole integral loop magnet steel of number of poles.
Moreover, the rotor ring material selection coefficient of expansion and the close material of permanent-magnet magnetic steel loop, take appropriate interference
Add adhesive technology that outer steel ring, interior magnet steel ring and rotor ring is made to constitute a rigid body.
Moreover, being provided with gas flow guiding slot on the axle journal of the axis.
Moreover, having diversion trench by motor rotation direction on two thrust plates.
Moreover, the stator is iron-core-free, bone-free frame support structure, stator winding is using three-phase star winding.
The advantages and positive effects of the present invention are:
The present invention is established high-magnetodensity permanent magnetic field, is reduced axial leakage field using the bicyclic magnetic steel structure design of diametrical magnetization；It adopts
With exoskeletal stator structure design, reduce working gas gap length, reduce operating current, improves electric efficiency；Using axially symmetric
The design of bi-motor structure, realizes the globality of bearing, improves rotor rigidity, reduces mass center drift.
This intellectual achievement realizes radial double magnet steel ring structure answering in through-hole type hydrodynamic gas-lubricated bearing three-phase motor with permanent magnets
With, improve the efficiency of motor, reduce heating in winding, be expected to be applied to inertial navigation system gyroscope instrument field, reduce gyro
Instrument temperature gradient, mass center drift, improve accuracy of instrument, technologically advanced, filled up China in the blank of technique.
Detailed description of the invention
Fig. 1 is the structure chart of motor；
Fig. 2 is the structure chart of rotor；
Fig. 3 is that schematic diagram is connected in series in two stator winding of motor；
Fig. 4 is that two stator winding of motor are connected in parallel schematic diagram.
Specific embodiment
With reference to the accompanying drawing in detail narration the embodiment of the present invention, it should be noted that the present embodiment be it is narrative, no
It is restrictive, this does not limit the scope of protection of the present invention.
A kind of bicyclic set magnet permanent motor of diametrical magnetization, using inside and outside two magnet steel rings, symmetrical double-stator structure, bearing is
Through-hole hydrodynamic gas-lubricated bearing, stator use chassis less construction.The motor includes a thrust plate of stator 2, two of rotor 1, two
3, two nuts 4 and an axis 5.
The moment of momentum needed for gyroscope is provided by rotor, and rotor (as shown in Figure 2) is by 6, two outer steels of a rotor ring
7, two, ring interior magnet steel rings 8 and a bearer ring 9 form.The inner surface of outer steel ring is working face, the outer surface of interior magnet steel ring
For working face, two outer steel rings and two interior magnet steel rings can be carried out pairing, outer steel ring, the interior magnetic of rotor side according to magnetism
Steel loop answers relationship pair according to pole pair.Outer steel ring and interior magnet steel ring are mounted on rotor ring, which is mounted on bearing
Rotor is formed in the outer circle of ring.Outer steel ring, interior magnet steel ring are all made of the identical permanent magnetic multi-pole integral loop magnetic of number of poles in the design
Steel, globality, symmetry are good, eliminate the unstable defect of the multi-pole ring mass center of muti-piece magnet steel composition, it is integrally rigid to improve rotor
Degree.Rotor ring material selects the coefficient of expansion and the close material of permanent-magnet magnetic steel loop, takes appropriate interference that adhesive technology is added to make outer magnetic
Steel loop, interior magnet steel ring and rotor ring constitute a rigid body, guarantee the stability of rotor centroid.
Axis is mounted in the bearing hole of armature spindle carrier ring, and the two forms the bearing of journals, is provided with gas flow guiding on the axle journal of axis
Slot improves motor run stability and realizes the radial carrying of hydrodynamic gas-lubricated bearing.Two thrust plates are installed on armature spindle carrier ring
The left and right sides, bearer ring or so end face forms thrust bearings pair with two thrust plates, presses motor operating side on two thrust plates
The axial carrying of hydrodynamic gas-lubricated bearing is realized to diversion trench is had when motor operates.Two stators are separately mounted to rotor
Both ends adjust the corresponding position of two stators, keep two stator phases consistent, are secured with nuts on axis, and by two stators
It is connected according to series system.
Hydrodynamic gas-lubricated bearing is through-hole type hydrodynamic gas-lubricated bearing, can use H-type or dome-type, and this patent uses through-hole H
Type structure, bearing ring inner hole and axis constitute transverse bearing, and bearing holder (housing, cover) both ends of the surface and thrust plate constitute thrust bearing, bearer ring, axis,
Thrust plate is same material.Bearer ring, outer steel ring, interior magnet steel ring, rotor ring mounting means be all made of radial interference and match
Conjunction mode improves the consistency of axis of angular momentum and motor drive shaft so that rotor structure rigidity is big, stability is good；Bearing machining size
Consistent good, after rotating, bearing deformation is small, and under static and dynamic, bearing clearance can guarantee constant, therefore the axis of bearing
It is easy to get guarantee to rigidity, the small unequal rigidity for reducing gyroscope of Flexibility Difference can be effectively reduced gyroscope and accelerate
Square related coefficient of deviation is spent, to effectively improve gyro antivibration kinetic force.
Driving moment needed for motor operating establishes permanent magnetism by interior magnet steel ring, the outer steel ring of stator armature magnetic field and rotor
Magnetic field interaction forms air-gap field and provides.
Stator is iron-core-free, bone-free frame support structure.Stator winding coil is fixed on mold, after integer, using injection molding
The modes such as molding seal winding.The processing method can obtain smooth surface, be readily cleaned, and reduce to hydrodynamic gas-lubricated bearing
Pollution.
Stator winding uses three-phase star winding.It, be in left and right in view of the symmetry of electric machine structure both axially and radially
A set of independent three-phase star winding is loaded on two stators respectively, using dedicated control module, conduction mode is conducted for two
Six states.Independent three-phase star winding abides by the rule of three-phase motor winding on two stators.It is independent on two stators
Three-phase star winding between use series connection mode, constitute new three-phase star-like connection (as shown in Figure 3), can effectively keep away
Exempt to be connected in parallel backflow phenomenon present in (as shown in Figure 4).
The structure of stator iron-core-free eliminates iron loss, and the motor feels hot for reduction, improves electric efficiency.
The bone-free frame support structure of stator, reduces working gas gap length, improves air gap flux density, reduces stator winding circle
Number, increases winding wire diameter, effectively reduces resistance value, reduces copper loss, and the motor feels hot for reduction, improves electric efficiency.
In addition, printing winding configuration can be used in stator winding, arrangement specification reduces end size, improves electric efficiency.
Motor use back EMF control technology, using motor itself back-emf signal zero crossing as rotor position
Information, control circuit are according to the conducting and shutdown for controlling the power tube being connected with armature winding, to control electricity with this signal
The power supply order of pivot winding makes stator winding generate rotating excitation field, dragging rotor rotation.
Claims (7)
1. a kind of bicyclic set magnet permanent motor of diametrical magnetization, it is characterised in that: including a rotor, two stators, two thrusts
Plate, two nuts and an axis, rotor is by a rotor ring, two outer steel rings, two interior magnet steel rings and a bearer ring group
At the inner surface of outer steel ring is working face, and the outer surface of interior magnet steel ring is working face, and outer steel ring and interior magnet steel ring are mounted on
On rotor ring, which, which is mounted in the outer circle of bearer ring, forms rotor；Axis is mounted in the bearing hole of armature spindle carrier ring, and two
Person forms the bearing of journals；Two thrust plates are installed on the left and right sides of armature spindle carrier ring, bearer ring or so end face and two thrusts
Board group is at thrust bearing pair；Two stators are separately mounted to two ends of rotor, and are secured with nuts on axis, and two stators according to
Series system connects.
2. the bicyclic set magnet permanent motor of a kind of diametrical magnetization according to claim 1, it is characterised in that: described two are outer
Magnet steel ring and two interior magnet steel rings can be carried out pairing according to magnetism, and the outer steel ring of rotor side, interior magnet steel ring are according to pole pair
Answer relationship pair.
3. the bicyclic set magnet permanent motor of a kind of diametrical magnetization according to claim 1 or 2, it is characterised in that: described is outer
Magnet steel ring, interior magnet steel ring are all made of the identical permanent magnetic multi-pole integral loop magnet steel of number of poles.
4. the bicyclic set magnet permanent motor of a kind of diametrical magnetization according to claim 1, it is characterised in that: the rotor ring
Material selects the coefficient of expansion and the close material of permanent-magnet magnetic steel loop, takes appropriate interference that adhesive technology is added to make outer steel ring, interior magnetic
Steel loop and rotor ring constitute a rigid body.
5. the bicyclic set magnet permanent motor of a kind of diametrical magnetization according to claim 1, it is characterised in that: the axis of the axis
Gas flow guiding slot is provided on neck.
6. the bicyclic set magnet permanent motor of a kind of diametrical magnetization according to claim 1, it is characterised in that: described two are only
Diversion trench is had by motor rotation direction in push plate.
7. the bicyclic set magnet permanent motor of a kind of diametrical magnetization according to claim 1, it is characterised in that: the stator is
Iron-core-free, bone-free frame support structure, stator winding use three-phase star winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811276980.2A CN109302026A (en) | 2018-10-30 | 2018-10-30 | A kind of bicyclic set magnet permanent motor of diametrical magnetization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811276980.2A CN109302026A (en) | 2018-10-30 | 2018-10-30 | A kind of bicyclic set magnet permanent motor of diametrical magnetization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109302026A true CN109302026A (en) | 2019-02-01 |
Family
ID=65145481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811276980.2A Pending CN109302026A (en) | 2018-10-30 | 2018-10-30 | A kind of bicyclic set magnet permanent motor of diametrical magnetization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109302026A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492638A (en) * | 2019-08-28 | 2019-11-22 | 河北科技大学 | Multiple degrees of freedom motor |
| CN112366844A (en) * | 2020-11-06 | 2021-02-12 | 中国船舶重工集团公司第七0七研究所 | Gyro motor capable of increasing starting torque through new nut positioning structure |
| CN112366891A (en) * | 2020-11-06 | 2021-02-12 | 中国船舶重工集团公司第七0七研究所 | Motor structure for liquid floated gyroscope |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1730957A (en) * | 2004-08-05 | 2006-02-08 | 松下电器产业株式会社 | Hydrodynamic fluid bearing device |
| WO2015185005A1 (en) * | 2014-06-06 | 2015-12-10 | 舍弗勒技术股份两合公司 | Motor, electromagnetic design structure thereof and magnetic steel machining method therefor |
| CN105207431A (en) * | 2014-06-26 | 2015-12-30 | 上海新跃仪表厂 | Double-magnet double-rotor permanent magnet motor for flywheel |
| CN102938599B (en) * | 2012-11-21 | 2016-04-27 | 中国船舶重工集团公司第七0七研究所 | A kind of bimorph transducer through hole bearing permanent magnet gyro motor |
-
2018
- 2018-10-30 CN CN201811276980.2A patent/CN109302026A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1730957A (en) * | 2004-08-05 | 2006-02-08 | 松下电器产业株式会社 | Hydrodynamic fluid bearing device |
| CN102938599B (en) * | 2012-11-21 | 2016-04-27 | 中国船舶重工集团公司第七0七研究所 | A kind of bimorph transducer through hole bearing permanent magnet gyro motor |
| WO2015185005A1 (en) * | 2014-06-06 | 2015-12-10 | 舍弗勒技术股份两合公司 | Motor, electromagnetic design structure thereof and magnetic steel machining method therefor |
| CN105207431A (en) * | 2014-06-26 | 2015-12-30 | 上海新跃仪表厂 | Double-magnet double-rotor permanent magnet motor for flywheel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492638A (en) * | 2019-08-28 | 2019-11-22 | 河北科技大学 | Multiple degrees of freedom motor |
| CN112366844A (en) * | 2020-11-06 | 2021-02-12 | 中国船舶重工集团公司第七0七研究所 | Gyro motor capable of increasing starting torque through new nut positioning structure |
| CN112366891A (en) * | 2020-11-06 | 2021-02-12 | 中国船舶重工集团公司第七0七研究所 | Motor structure for liquid floated gyroscope |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190201 |
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| RJ01 | Rejection of invention patent application after publication |