CN206850641U - A kind of cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor - Google Patents
A kind of cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor Download PDFInfo
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- CN206850641U CN206850641U CN201720475824.3U CN201720475824U CN206850641U CN 206850641 U CN206850641 U CN 206850641U CN 201720475824 U CN201720475824 U CN 201720475824U CN 206850641 U CN206850641 U CN 206850641U
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- permanent magnet
- cage
- stator core
- motor
- magnetic flux
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Abstract
The utility model discloses a kind of cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor, including the motor stator that the rotor that collectively forms of field spider of motor housing, co-axially fixed two outer rotors and the centre collectively formed by rotating shaft, bearing, end cap, gland and casing, circumferentially distributed multiple modularization T-shaped stator core, winding and aluminium rings are formed.Two outer rotors are formed by outer rotor yoke portion, permanent magnet, cage grooves and mouse cage ring, permanent magnet arrangement uses the oblique pole structure of combined bidirectional, stator core and aluminium ring with field spider concentric, and are arranged successively according to rotating shaft, field spider, stator core, aluminium ring, the order of casing from rotating shaft to casing.Cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor in the utility model, it is possible to increase copper factor, improve winding overhang utilization rate, improve torque quality, raising torque and power density, improve motor low speed and high-speed operation performance and improve motor overall operation efficiency.
Description
Technical field
The utility model belongs to technical field of motors, more more particularly, to a kind of cage-type rotor axial and radial mixing behavior magnetic flux
Disc-type permanent magnet motor.
Background technology
Currently used magneto is generally divided into radial flux and the class of axial flux permanent magnet motor two, but its end is sharp
All relatively low with rate, motor integral space utilization ratio is not high, and low speed can not be taken into account with high-speed operation performance, motor torque density and work(
Rate density still has room for promotion.
In traditional design of electrical motor, motor is carried out dimensionally-optimised such as big using draw ratio in radial permanent magnet motor
Structure, axial type magneto is using the small structure of draw ratio；Torque density is improved using technologies such as fraction concentratred windings,
But its effect is limited, and electric motor winding end is all difficult to be utilized, so people seek overall compact electric machine structure.
Utility model patent 201520407320.9 proposes a kind of axial and radial mixing behavior magnetic flow permanent magnet motor, and its feature is
Motor is outer-rotor structure, and permanent magnet, motor magnetic circuit are all placed with the axial both sides of stator core and the casing of radial outside
Closed by casing and stator core and form axial and radial mixing behavior magnetic circuit, two axial directions and one are both provided with each stator core
Individual radial direction winding.But its winding connection is complicated with control system, and motor can not take into account low speed and high-speed operation performance, complete to motor
Office's efficiency has certain influence.
Utility model content
The defects of for prior art, the purpose of this utility model are to provide a kind of cage-type rotor axial and radial mixing behavior magnetic flux
Multi-disc type permanent magnet motor, it is intended to solve that existing axial and radial mixing behavior magnetic flow permanent magnet electric motor starting torque is low, and start-up course is unstable, nothing
Method takes into account the technical problem of low speed and high-speed operation performance.
The utility model provides a kind of cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor, including outside motor
Shell, stator and rotor, motor housing include：Rotating shaft, bearing, end cap, gland and casing；Casing is cylindrical shape, and casing both ends are each
There is an end cap to be screwed on casing, the outside of two end caps respectively has a gland to be screwed in end cap
On, the circle centre position of end cap and gland is provided with circular port, and circular port is used to place bearing at end cap, and rotating shaft is horizontal by circular port
Wear gland, end cap and bearing；Stator includes：Multiple modularization T-shaped stator core, winding and aluminium rings, T-shaped stator core is circumferentially
Around field spider periphery is arranged in, aluminium ring is in T-shaped stator core periphery and is fixed on casing, through T-shaped stator core
Inside is equipped with two the first heat emission holes, is provided with the first positioning hole and the second positioning corresponding to each T-shaped stator core at aluminium ring
Hole, aluminium ring are bolted together on casing by the first positioning hole, and T-shaped stator core is bolted together to by the second positioning hole
In aluminium ring；Rotor includes：Co-axially fixed two outer rotors turn outside with middle field spider, field spider and two are arranged on
Son is fixed in rotating shaft；Two outer rotors include：Outer rotor yoke, permanent magnet, cage grooves and the mouse cage ring；Outer rotor yoke
Inner circumferential side is equipped with second heat emission hole, and being circumferentially evenly spaced apart arrangement on outer rotor inner side end is provided with multiple fans
Permanent magnet described in shape, the mouse cage ring are embedded in the cage grooves.
Further, field spider and two outer rotors are fixed in the rotating shaft by the way of key connection.
Further, the permanent magnet on same outer rotor is arranged tilts to same direction, permanent magnet on two outer rotors
Incline direction on the contrary, form bidirectional oblique level structure.
Further, between outer rotor yoke and permanent magnet, between permanent magnet and cage grooves, cage grooves and the mouse cage ring
Between using be glued by the way of fix.
Further, on the T-shaped stator core winding using can pole-changing torsion circle formula simplex winding, stator winding is set
For pole pole-changing again, type of drive is cascaded using both-end, one of which number of pole-pairs is p1, another number of pole-pairs is p2, p2=2p1.Throw
Enter p1During variable-frequency power sources, rotor cage winding failure, stator winding operates in p1Pattern, have self-start permanent-magnet synchronous operation high
Fast characteristic；Put into p2During variable-frequency power sources, stator winding operates in p2Pattern, magnetic flux do not pass through permanent magnet, and cage modle sense is presented in motor
Answer motor characteristic.
Further, the winding method of winding is to surround the both sides tooth and center tooth of T-shaped stator core, coiling successively
Direction need to meet that principle is：When being passed through electric current, electric current is to determine from T-shaped according to magnetic line of force direction caused by Ampere's law in winding
The both sides tooth of sub- iron core flows into, and center tooth outflow, when passing to reverse current, the magnetic line of force is in opposite direction.
Further, the quantity of the T-shaped stator core and the quantity of the permanent magnet, the mouse cage ring number of poles and
The number of poles of the field spider coordinates all in accordance with the pole groove of specific motor to be determined, the pole groove of motor coordinates by its rotating speed and power supply
Frequency determines.
Further, the T-shaped stator core is process using method of the soft-magnetic composite material through powder metallurgy, outside
Rotor yoke is made with cage grooves of Steel material.
In general, by the contemplated above technical scheme of the utility model compared with prior art, can obtain with
Lower beneficial effect：
(1) field spider provides vortex synchronous reluctance, improves electric motor starting performance, low speed asynchronous operation, inductive loop, folds
Add induction torque；High-speed synchronous is run, and is superimposed reluctance torque.
(2) cage modle p-m rotor coordinate can pole-changing torsion circle formula simplex winding, more numbers of pole-pairs during motor low speed, induction machine is presented
Characteristic, export big torque；Few number of pole-pairs, is presented self-start permanent magnet synchronous characteristic, widens speed adjustable range, take into account low during high speed
Speed and high-speed operation performance.
(3) T-shaped stator core is used, the full utilization of Axial and radial magnetic field, electric machine structure is compact, and power obtains with torque density
Greatly promote.
(4) modularization T-shaped stator core is used, improves production efficiency, is easy to processing and later stage operating maintenance.
Brief description of the drawings
Fig. 1 is the utility model cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet electric machine structure schematic diagram；
Fig. 2 is the T-shaped stator core construction of the utility model cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor
Schematic diagram；
Fig. 3 a are that the torsion circle winding construction of the utility model cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor shows
It is intended to.
Fig. 3 b are the torsion circle winding technique side of the utility model cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor
Formula explanation figure；
Fig. 4 is the aluminium ring structural representation of the utility model cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor；
Fig. 5 is the outer rotor assembling signal of the utility model cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor
Figure；
Fig. 6 is that the outer-rotor structure of the utility model cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor is illustrated
Figure；
Fig. 7 is the field spider structural representation of the utility model cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor
Figure；
Fig. 8 is the pivot structure schematic diagram of the utility model cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor.
In all of the figs, identical reference is used for representing identical element or structure, wherein：1 is casing, and 2 are
Aluminium ring, 3 be field spider, and 4 be rotating shaft, and 5 be outer rotor, and 6 be outer rotor yoke, and 7 be permanent magnet, and 8 be cage grooves, and 9 be mouse cage ring,
10 be the first positioning hole, and 11 be the second positioning hole, and 12 be end cap, and 13 be gland, and 14 be bearing, and 15 be stator core, and 16 be
One heat emission hole, 17 be the second heat emission hole, and 18 be winding, and 19 be keyway.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
The utility model provides one kind both can enough improve torque quality, torque with lifting motor space availability ratio, and can
Density and system effectiveness, while the magneto of low speed and high-speed operation performance can be taken into account, the motor can be used for high-end numerical control
The occasions such as electrical spindle for machine tool, joint of robot, electric automobile hub driving.
As shown in figure 1, the utility model provides a kind of cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor, bag
Stator, rotor, and the motor housing being made up of rotating shaft, bearing, end cap, gland and casing are included, wherein, stator is by multiple modules
Change T-shaped stator core, winding and aluminium ring composition, T-shaped stator core, which circumferentially surrounds, is arranged in field spider periphery, and aluminium ring is in
T-shaped stator core periphery is simultaneously fixed on casing, and two heat emission holes, each T-shaped stator iron are equipped with inside T-shaped stator core
Three positioning holes are equipped with corresponding to core at aluminium ring, aluminium ring is bolted together on casing by positioning hole, and T-shaped stator core passes through
Positioning hole is bolted together in aluminium ring；Rotor is collectively constituted by co-axially fixed two outer rotors and middle field spider,
Wherein, two outer rotors are formed by outer rotor yoke portion, permanent magnet, cage grooves and mouse cage ring.Outer rotor yoke portion is equipped with radiating
Hole, multiple fan-shaped permanent magnets of arranging circumferentially are evenly spaced apart on outer rotor inner side end, and on same outer rotor forever
Magnet is arranged to be tilted to same direction, and the incline direction of permanent magnet is on the contrary, composition bidirectional oblique level structure, mouse cage on two outer rotors
In ring insertion cage grooves, using splicing between outer rotor yoke portion and permanent magnet, permanent magnet and cage grooves, cage grooves and mouse cage ring
Mode fix.Field spider and two outer rotors are fixed in rotating shaft by the way of key connection.
The course of work of motor is：Unloaded magnetic flux permanent magnet N poles from the rotor disk of both sides, enter by axial air-gap
In the axial stator tooth of T-shaped stator core, then from T-shaped stator core radial stator tooth by radial air gap enter field spider,
Circumferentially enter the field spider tooth closed in field spider, enter T-shaped stator core by radial air gap, along reverse road
Footpath returns to permanent magnet S pole on rotor disk, and initial permanent magnet is returned to by rotor yoke.When armature winding is passed through electric current, produce
The interaction of armature field and permanent magnetic field produce output torque.In start-up course, rotor speed is not up to synchronous rotational speed,
Inductive loop in salient pole, induction torque is produced, improve startability；When high-speed synchronous is run, rotor speed is same with rotating excitation field
Step, salient pole vortex disappear, and according to synchronous reluctance action principle, can produce reluctance torque, be superimposed electromagnetic torque, increase torque density.
In the utility model embodiment, on T-shaped stator core winding using can pole-changing torsion circle formula simplex winding, winding around
Mode processed is to surround the both sides tooth and center tooth of T-shaped stator core successively, and coiling direction need to be to reach following effect as principle：
When being passed through electric current, electric current is from the both sides tooth stream of T-shaped stator core according to magnetic line of force direction caused by Ampere's law in winding
Enter, center tooth outflow, when passing to reverse current, the magnetic line of force is in opposite direction.
In the utility model embodiment, the number of poles of the quantity of T-shaped stator core and permanent magnet, mouse cage ring and field spider
All depending on the cooperation of specific motor pole groove, and the pole groove cooperation of motor is determined by its rotating speed with supply frequency, the salient pole
The axial cross section of rotor is the gear-like of parallel teeth, above adaptability perforate improve motor radiating and servo performance.
In the utility model embodiment, the structural complexity of T-shaped stator core determines soft-magnetic composite material need to be used to pass through
The method of powder metallurgy is process, meanwhile, the material possesses very high resistivity, can effectively weaken the vortex damage of stator core
Consumption, rotor yoke are made with cage grooves of Steel material.
The cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type provided for further description the utility model embodiment
Magneto, in conjunction with accompanying drawing and instantiation, details are as follows：
As shown in Fig. 1~Fig. 8, cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor is included by rotating shaft 4, bearing
14th, the salient pole of end cap 12, gland 13 and casing 1 collectively form motor housing, co-axially fixed two outer rotors 5 and centre turns
The electricity that rotor, circumferentially distributed multiple modularization T-shaped stator cores 15, winding 18 and the aluminium ring 2 that son 3 collectively forms are formed
Machine stator, T-shaped stator core are bolted together in aluminium ring 2 by positioning hole 11, and aluminium ring 2 is fixed by positioning hole 10 with bolt
On casing 1, rotating shaft 4 is provided with three keyways 19 (as shown in Figure 8), two outer rotors 5 and field spider 3 using key connection
Mode is fixed in rotating shaft 4, is fixed between outer rotor yoke, permanent magnet, cage grooves, mouse cage ring by the way of being glued.
Cage modle p-m rotor coordinate can pole-changing torsion circle formula simplex winding, more numbers of pole-pairs during motor low speed, it is special that induction machine is presented
Property, export big torque；Few number of pole-pairs, is presented self-start permanent magnet synchronous characteristic, widens speed adjustable range, take into account low speed during high speed
With high-speed operation performance.
As shown in Fig. 2 T-shaped stator core 15 is radially inside equipped with two the first heat emission holes 16, to improve stator
Radiating efficiency, so as to improve power of motor density, axially there is stator tooth both sides and radial direction side to coiling torsion circle formula
Simplex winding 18.Using modular T-shaped stator core, the full utilization of Axial and radial magnetic field, electric machine structure is compact, and power is close with torque
Degree is greatly improved, and improves production efficiency, is easy to processing and later stage operating maintenance.
As shown in Fig. 3 a, 3b, torsion circle formula simplex winding 18 is wound on T-shaped stator core 15 by the way of Fig. 3 b, can be with
Ensure that magnetic flux flows into from two stator tooths of axial direction, flowed out from the stator tooth of radial direction, when winding 18 passes to negative-phase sequence curent, magnetic flux
Flow direction is opposite.
As shown in figure 4, being equipped with positioning hole 10,11 in aluminium ring 2, the inner side of aluminium ring 2 is regular polygon shape, per one side all by fixed
A T-shaped stator core 15 is fixed in position hole 11 with bolt, the outside of aluminium ring 2 is circle, is fixed by positioning hole 10 with bolt
On casing 1.
As shown in Figure 5, Figure 6, outer rotor 5 is made up of outer rotor yoke 6, permanent magnet 7, cage grooves 8 and mouse cage ring 9, and its is mutual
Between fixed in a manner of splicing, wherein fan-shaped permanent magnet arrangement tilt in the same direction, fan-shaped permanent magnet on two outer rotors 5
7 incline directions are equipped with the second heat emission hole 17 on rotor yoke on the contrary, form bidirectional oblique level structure vertically.
As shown in fig. 7, the axial cross section of field spider is the gear-like of parallel teeth, above adaptability perforate improve electricity
Machine radiates and servo performance, there is provided vortex synchronous reluctance, improves electric motor starting performance, low speed asynchronous operation, inductive loop, superposition
Induction torque；High-speed synchronous is run, and is superimposed reluctance torque.
As it will be easily appreciated by one skilled in the art that preferred embodiment of the present utility model is the foregoing is only, not
To limit the utility model, any modification of all made within spirit of the present utility model and principle, equivalent substitution and change
Enter, should be included within the scope of protection of the utility model.
Claims (8)
1. a kind of cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor, including motor housing, stator and rotor, its feature
It is, the motor housing includes：Rotating shaft (4), bearing (14), end cap (12), gland (13) and casing (1)；Casing (1) is circle
Tubular, casing both ends respectively have an end cap (12) to be screwed on casing, and respectively there is a gland in the outside of two end caps
(13) it is screwed on end cap, the circle centre position of end cap (12) and gland (13) is provided with circular port, end cap (12) place
Circular port is used to place bearing (14), and rotating shaft (4) crosses gland (13), end cap (12) and bearing (14) by circular port；
The stator includes：Multiple modularization T-shaped stator cores (15), winding (18) and aluminium ring (2), T-shaped stator core (15)
Circumferentially surround and be arranged in field spider (3) periphery, aluminium ring (2) is in T-shaped stator core (15) periphery and is fixed on casing (1)
On, it is equipped with two the first heat emission holes (16), aluminium corresponding to each T-shaped stator core (15) inside T-shaped stator core (15)
Ring (2) place is provided with the first positioning hole (10) and the second positioning hole (11), and aluminium ring (2) is consolidated by the first positioning hole (10) with bolt
It is scheduled on casing (1), T-shaped stator core (15) is bolted together in aluminium ring (2) by the second positioning hole (11)；
The rotor includes：Co-axially fixed two outer rotors (5) and the field spider (3) for being arranged on centre, the salient pole turn
Sub (3) are fixed in the rotating shaft (4) with two outer rotors (5)；Two outer rotors (5) include：The outer rotor yoke (6),
The permanent magnet (7), the cage grooves (8) and the mouse cage ring (9)；The inner circumferential side of the outer rotor yoke (6) is equipped with described
Second heat emission hole (17), arrangement is circumferentially evenly spaced apart on outer rotor (5) inner side end and is provided with multiple fan-shaped institutes
Permanent magnet (7) is stated, the embedded cage grooves (8) of the mouse cage ring (9) are interior.
2. cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor as claimed in claim 1, it is characterised in that described convex
Pole rotor (3) is fixed in the rotating shaft (4) with two outer rotors (5) by the way of key connection.
3. cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor as claimed in claim 1 or 2, it is characterised in that same
Permanent magnet (7) on one outer rotor (5) is arranged to be tilted to same direction, the inclination side of permanent magnet (7) on two outer rotor yokes (6)
To on the contrary, forming bidirectional oblique level structure.
4. such as claim 3 cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor, it is characterised in that the outer rotor yoke
(6) between the permanent magnet (7), between the permanent magnet (7) and the cage grooves (8), the cage grooves (8) and the mouse
Fixed between cage ring (9) by the way of being glued.
5. cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor as claimed in claim 1, it is characterised in that the T
Winding (18) use can pole-changing torsion circle formula simplex winding on shape stator core (15).
6. cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor as claimed in claim 5, it is characterised in that winding
Winding method is the both sides tooth and center tooth for surrounding T-shaped stator core successively, and coiling direction need to meet that principle is：When being passed through electricity
During stream, electric current is to be flowed into from the both sides tooth of T-shaped stator core according to magnetic line of force direction caused by Ampere's law in winding, center tooth
Outflow, when passing to reverse current, the magnetic line of force is in opposite direction.
7. cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor as claimed in claim 1, it is characterised in that the T
The quantity of shape stator core (15) and the quantity of the permanent magnet (7), the number of poles of the mouse cage ring (9) and the field spider
(3) number of poles coordinates all in accordance with the pole groove of specific motor to be determined, the pole groove of motor coordinates to be determined by its rotating speed and supply frequency.
8. cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor as claimed in claim 1, it is characterised in that the T
Shape stator core (15) is process using method of the soft-magnetic composite material through powder metallurgy, the outer rotor yoke (6) with it is described
Cage grooves (8) are made of Steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720475824.3U CN206850641U (en) | 2017-05-02 | 2017-05-02 | A kind of cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720475824.3U CN206850641U (en) | 2017-05-02 | 2017-05-02 | A kind of cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206850641U true CN206850641U (en) | 2018-01-05 |
Family
ID=60794628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720475824.3U Expired - Fee Related CN206850641U (en) | 2017-05-02 | 2017-05-02 | A kind of cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206850641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107026547A (en) * | 2017-05-02 | 2017-08-08 | 华中科技大学 | A kind of cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor |
-
2017
- 2017-05-02 CN CN201720475824.3U patent/CN206850641U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107026547A (en) * | 2017-05-02 | 2017-08-08 | 华中科技大学 | A kind of cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor |
| CN107026547B (en) * | 2017-05-02 | 2023-04-28 | 华中科技大学 | Cage rotor shaft radial mixed magnetic flux multi-disc permanent magnet motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 |