CN208479439U - A kind of machinery magnetism-regulating type permanent magnet synchronous electric thermomechanical components - Google Patents
A kind of machinery magnetism-regulating type permanent magnet synchronous electric thermomechanical components Download PDFInfo
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- CN208479439U CN208479439U CN201821189482.XU CN201821189482U CN208479439U CN 208479439 U CN208479439 U CN 208479439U CN 201821189482 U CN201821189482 U CN 201821189482U CN 208479439 U CN208479439 U CN 208479439U
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- permanent magnet
- iron core
- core
- external stator
- magnetism
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Abstract
The utility model discloses a kind of mechanical magnetism-regulating type permanent magnet synchronous electric thermomechanical components, permanent magnet, permanent magnet, external stator core, centralized armature winding, interior air gap and the inner-stator iron core of the direction of magnetization radially inward including ring-shaped rotor iron core, outer air gap, the direction of magnetization radially；The permanent magnet of permanent magnet and the direction of magnetization radially inward of the direction of magnetization radially is alternateed and is set in being not connected on ring-shaped rotor iron core inner surface；External stator core is located at the inside of ring-shaped rotor iron core, and inner-stator iron core is located at the inside of external stator core；The inner-stator iron core can axially rotate；The centralization armature winding is wrapped circumferentially around on the tooth of external stator core.The utility model uses outer rotor iron core structure, and the arm of force of outer-rotor structure is longer under identical active force, so that the torque of the structure is larger；Adjustable magnetic system is inner-stator iron core structure, and adjustable magnetic system structure is simple, and robustness is good, can be widely applied in adjustable magnetic system.
Description
Technical field
The utility model relates to magneto technical fields, more particularly to a kind of mechanical magnetism-regulating type permanent magnet synchronous electric unit
Part.
Background technique
Magneto eliminates reversing mechanism and brush compared with direct current generator, simplifies structure, and increase operation can
By property.Compared with induction machine, magneto eliminates exciting current, improves efficiency.Compared with switching damping motor, permanent magnetism
Motor reduces mechanical oscillation, reduces noise.Therefore magneto has obtained widely answering in drive system of electric automobile
With.Magneto on new energy power vehicle needs to keep big torque output in low speed, needs invariable power again in high speed
Export and to meet the needs of higher speed, therefore weak magnetism speed expansion seems and is even more important.
It is that biggish d-axis demagnetizing current is added to reduce air-gap field to reach that conventional permanent magnet motor, which carries out weak magnetism speed expansion,
Purpose, but on the one hand this weak magnetic method is not able to satisfy the big revolving speed range of operation of motor, winding copper loss can on the other hand increased
Add, reduces the efficiency of motor.
Document CN104935111A is a kind of mechanical magnetism-regulating type rotating electric machine, which passes through mechanical electric magnet valve magnetic regulating device
The position of removable conductive magnetic yoke is controlled, thus realize the purpose of adjustable magnetic, however since structure is complicated for removable conductive magnetic yoke, so that
The processing difficulties of the motor, higher cost, mechanical electric magnet valve magnetic regulating device are placed in motor, reduce the space utilization of motor
Rate.A kind of magnetic-leakage type machinery of document CN104659996A becomes flux permanent magnet synchronous motor, which passes through generates under different rotating speeds
Different centrifugal force, thus using centrifugal force come compressed spring and then the position of adjusting adjustable magnetic block, to achieve the purpose that weak magnetic, but
It is that the motor is more demanding to spring, in the system often adjusted the speed, spring is easy to aging by repeatedly compression and expansion, into
And precision is reduced.
Utility model content
It is difficult to solve new energy power vehicle weak magnetic in high speed, and turn up is less than required big revolving speed range of operation
The problem of, the utility model provides a kind of mechanical magnetism-regulating type permanent magnet synchronous electric thermomechanical components.The utility model electric machine assembly is due to adopting
With double-stator structure, so that adjustable magnetic system is simple, robustness is good, and adjustable magnetic range is wide, can be widely applied to various adjustable magnetic fields
It closes.It is radial permanent magnet that it, which includes the direction of magnetization, and rotor core, shaft is possessing bimorph transducer at shaft, default
Son can rotate, and external stator is fixed, and three-phase windings are wound on external stator.The utility model under base speed and in base speed by controlling
The rotation angle of inner stator processed to realize the size of permanent magnet flux path magnetic resistance, and then has indirectly controlled having for motor gas-gap
Magnetic flux is imitated, so that motor has very big adjustable magnetic ability, the purpose of mechanical adjustable magnetic is realized, is turning greatly so as to meet motor
Service requirement under speed avoids the d-axis that traditional magneto needs addition very big when carrying out weak-magnetic speed-regulating and removes magnetoelectricity
Stream, thus the loss of motor is greatly reduced, power factor is improved.
The technical solution that the utility model solves the technical problem is to design a kind of mechanical magnetism-regulating type permanent magnet synchronous motor
Component, which is characterized in that including ring-shaped rotor iron core, outer air gap, the direction of magnetization permanent magnet radially, direction of magnetization edge
Radially inward permanent magnet, external stator core, centralized armature winding, interior air gap and inner-stator iron core；The direction of magnetization edge
The permanent magnet of radially outer permanent magnet and the direction of magnetization radially inward alternates and be set in ring-shaped rotor iron with being not connected to
On in-core surface；External stator core is located at the inside of ring-shaped rotor iron core, and inner-stator iron core is located at the inside of external stator core；Institute
Stating inner-stator iron core can axially rotate；
The centralization armature winding is wrapped circumferentially around on the tooth of external stator core；External stator core and the direction of magnetization are along diameter
Outer air gap is constituted to the gap between the permanent magnet of outside permanent magnet, the direction of magnetization radially inward；External stator core it is interior
The gap of the outer end face of surface and inner-stator iron core constitutes interior air gap；
The external stator core be both ends outer end face on be circumferentially provided with the structure of the T-shaped tooth being spaced apart from each other, middle part
For the structure that can wind centralized armature winding.
Compared with prior art, the utility model beneficial effect is: the utility model is by rotating inner-stator iron core
The control of angle to realize the control to permanent magnet flux path magnetic resistance size, and then indirectly controls having for motor gas-gap
Imitate magnetic flux.In low speed, the salient pole of inner-stator iron core and the salient pole of external stator are corresponded, and then make the permanent magnet flux of permanent magnet
It all plays a role, needs the requirement of big torque in slowspeed machine to reach；In high speed, by rotating inner stator iron
Core so that the magnetic resistance of interior air gap be made to increase, and then makes air gap magnetic so that its salient pole is no longer corresponding with the salient pole of external stator core
It is logical to reduce, the adjusting of permanent magnet flux is also achieved that, so that motor is provided with larger weak magnetic ability, so that motor is provided with
Preferable weak magnetism speed expansion ability, improves the efficiency of motor.
The utility model uses outer rotor iron core structure, and the arm of force of outer-rotor structure is longer under identical active force, in turn
So that the torque of the structure is larger；Double-stator structure is taken full advantage of, by the rotation of inner-stator iron core, controls permanent magnet magnetic flux
The magnetic resistance in path avoids so as to adjust magneto air-gap flux so that motor has very big weak-magnetic speed-regulating ability simultaneously
Conventional permanent magnet motor reaches the range of required weak magnetism speed expansion with biggish d-axis demagnetizing current is passed through, so that the damage of magneto
Depletion is small, and power factor is improved.The adjustable magnetic system of the utility model is inner-stator iron core structure, adjustable magnetic system structure letter
Single, robustness is good, can be widely applied in adjustable magnetic system.
Detailed description of the invention
Fig. 1 show the salient pole of both the external stator core of the utility model, inner-stator iron core to structural representation when corresponding to
Figure；
The salient pole that Fig. 2 show both the external stator core of the utility model, inner-stator iron core does not show structure when corresponding to
It is intended to；
Fig. 3 show the external stator core structural schematic diagram of the utility model；
Fig. 4 show the inner-stator iron core structural schematic diagram of the utility model；
Fig. 5 show the salient pole of both the external stator core of the utility model, inner-stator iron core to when corresponding to points
Butut；
When Fig. 6 show the salient pole of both the external stator core of the utility model, inner-stator iron core not to corresponding to
Distribution map；
In figure: 1- rotor core；The outer air gap of 2-；The permanent magnet of the 3- direction of magnetization radially；The 4- direction of magnetization is along diameter
To inside permanent magnet；5- external stator core；6- centralization armature winding；Air gap in 7-；8- inner-stator iron core.
Specific embodiment
Specific embodiment of the utility model is given below.Specific embodiment is only used for being further described originally practical new
Type does not limit the protection scope of the claim of this application.
The utility model provides a kind of mechanical magnetism-regulating type permanent magnet synchronous electric thermomechanical components, including ring-shaped rotor iron core 1, outer gas in fact
Permanent magnet 3, permanent magnet 4, the external stator core 5, concentration of the direction of magnetization radially inward of gap 2, the direction of magnetization radially
Formula armature winding 6, interior air gap 7 and inner-stator iron core 8；Direction of magnetization permanent magnet 3 radially and direction of magnetization edge
Radially inward permanent magnet 4 is alternateed and is set in being not connected on 1 inner surface of ring-shaped rotor iron core.External stator core 5 is located at
The inside of ring-shaped rotor iron core 1, inner-stator iron core 8 are located at the inside of external stator core 5；The inner-stator iron core 8 can be along axis
To rotation.
The centralization armature winding 6 is wrapped circumferentially around on the tooth of external stator core 5；External stator core 5 and the direction of magnetization
Gap between permanent magnet 3 radially, the permanent magnet 4 of the direction of magnetization radially inward constitutes outer air gap 2.External stator iron
The gap of the outer end face of the inner surface and inner-stator iron core 8 of core 5 constitutes interior air gap 7.
The external stator core 5 be both ends outer end face on be circumferentially provided with the structure of the T-shaped tooth being spaced apart from each other, middle part
For the structure that can wind centralized armature winding 6.
It is through-hole that the inner-stator iron core 8, which is inside, and outer end face is circumferentially evenly arranged with the structure of bar shaped tooth.
The inner-stator iron core 8 and 5 material of external stator core are all electrical sheet, trade mark M19_29G.
The inner-stator iron core 8 and external stator core 5 are all salient-pole structure, and inner-stator iron core 8 and external stator core 5
Salient pole number is equal.
Between the inner-stator iron core 8 and external stator core 5 there are interior air gap 7 be 0.1mm.
The utility model machinery magnetism-regulating type permanent magnet synchronous electric thermomechanical components cooperate the conventional fitments such as electric motor end cap, armature spindle
It is assembled into mechanical magnetism-regulating type permanent magnet synchronous motor.The motor uses outer-rotor structure, i.e. rotor is located at external stator core
Outside, the structure make the torque under identical active force larger；The motor uses double-stator structure simultaneously, on external stator core
Armature winding is wound, fixed, inner-stator iron core is for adjusting air-gap field, when not needing weak magnetic, interior external stator core
Salient pole is corresponding, and at this moment air-gap flux reaches maximum, when carrying out weak magnetic, inner-stator iron core is made to rotate by a certain angle, to make
The magnetic resistance for obtaining magnetic flux passage path increases, so that air-gap flux reduces, to achieve the purpose that weak magnetic.
The utility model core innovative point is rotor core and the stator core construction part, first rotor core of motor
It is outer-rotor structure, so that the motor torque arm is longer, torque is higher outside interior external stator core；Secondly the motor
Using bimorph transducer core structure, inner-stator iron core is for adjusting air-gap field, the gas with very little between interior external stator core
Gap, this bimorph transducer core structure make air-gap field easy to adjust, can reach good adjustable magnetic effect, and adjustable magnetic system is
Inner-stator iron core, so that its structure is simple, robustness is good.
Fig. 5 and Fig. 6 is to the utility model method by finite element analysis software MAXWELL in magneto idle running
Low speed and high speed magnetic flux density distribution map.
Fig. 5 shows, the salient pole of external stator core 5 and the salient pole of inner-stator iron core 8 to it is corresponding when magneto zero load magnetic flux it is close
Spend the figure of distribution.Fig. 6 shows, the salient pole of external stator core 5 and the salient pole of inner-stator iron core 8 not to it is corresponding when magneto it is empty
Carry the figure of magnetic flux distribution.As can be seen that the interior air gap zero load magnetic flux distribution of Fig. 5 is obvious from Fig. 5 and Fig. 6 comparison
Interior air gap flux density distribution higher than Fig. 6.
The working principle and workflow of the utility model are:
When motor is when low speed is run, the salient pole of external stator core 5 such as Fig. 1 corresponding with the salient pole of inner-stator iron core 8 works as electricity
For machine in high-speed cruising, the salient pole of external stator core 5 is no longer corresponding such as Fig. 2 with the salient pole of inner-stator iron core 8, so that motor
When high-speed cruising permanent magnet magnetic flux by path magnetic resistance increase, thus achieved the purpose that reduce air-gap field.
The utility model does not address place and is suitable for the prior art.
Claims (6)
1. a kind of machinery magnetism-regulating type permanent magnet synchronous electric thermomechanical components, which is characterized in that including ring-shaped rotor iron core, outer air gap, magnetization
Direction permanent magnet radially, the direction of magnetization permanent magnet radially inward, external stator core, centralized armature winding,
Interior air gap and inner-stator iron core；The permanent magnet of permanent magnet and the direction of magnetization radially inward of the direction of magnetization radially
It alternates and is set in being not connected on ring-shaped rotor iron core inner surface；External stator core is located at the inside of ring-shaped rotor iron core,
Inner-stator iron core is located at the inside of external stator core；The inner-stator iron core can axially rotate；
The centralization armature winding is wrapped circumferentially around on the tooth of external stator core；External stator core and the direction of magnetization radially to
Gap between outer permanent magnet, the permanent magnet of the direction of magnetization radially inward constitutes outer air gap；The inner surface of external stator core
Interior air gap is constituted with the gap of the outer end face of inner-stator iron core；
The external stator core is the structure that the T-shaped tooth being spaced apart from each other circumferentially is provided on the outer end face at both ends, and middle part is can
Wind the structure of centralized armature winding.
2. a kind of mechanical magnetism-regulating type permanent magnet synchronous electric thermomechanical components according to claim 1, which is characterized in that the inner stator
Iron core is that inside is the structure that through-hole, outer end face are circumferentially evenly arranged with bar shaped tooth.
3. a kind of mechanical magnetism-regulating type permanent magnet synchronous electric thermomechanical components according to claim 1, which is characterized in that the inner stator
Iron core and external stator core material are all electrical sheet, trade mark M19_29G.
4. a kind of mechanical magnetism-regulating type permanent magnet synchronous electric thermomechanical components according to claim 1, which is characterized in that the inner stator
Iron core and external stator core are all salient-pole structure, and inner-stator iron core and external stator core salient pole number are equal.
5. a kind of mechanical magnetism-regulating type permanent magnet synchronous electric thermomechanical components according to claim 1, which is characterized in that the inner stator
Between iron core and external stator core there are interior air gap be 0.1mm.
6. a kind of mechanical magnetism-regulating type permanent magnet synchronous electric thermomechanical components according to claim 1, which is characterized in that the machinery
Magnetism-regulating type permanent magnet synchronous electric thermomechanical components cooperate electric motor end cap, armature spindle to constitute a mechanical magnetism-regulating type permanent magnet synchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821189482.XU CN208479439U (en) | 2018-07-26 | 2018-07-26 | A kind of machinery magnetism-regulating type permanent magnet synchronous electric thermomechanical components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821189482.XU CN208479439U (en) | 2018-07-26 | 2018-07-26 | A kind of machinery magnetism-regulating type permanent magnet synchronous electric thermomechanical components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208479439U true CN208479439U (en) | 2019-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821189482.XU Active CN208479439U (en) | 2018-07-26 | 2018-07-26 | A kind of machinery magnetism-regulating type permanent magnet synchronous electric thermomechanical components |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113054764A (en) * | 2021-04-14 | 2021-06-29 | 郑州轻工业大学 | Liquid cooling strikes arch magnetic flow adjusting device |
| CN113315269A (en) * | 2021-05-31 | 2021-08-27 | 河北工业大学 | Stator type permanent magnet synchronous motor with flux weakening function |
-
2018
- 2018-07-26 CN CN201821189482.XU patent/CN208479439U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113054764A (en) * | 2021-04-14 | 2021-06-29 | 郑州轻工业大学 | Liquid cooling strikes arch magnetic flow adjusting device |
| CN113315269A (en) * | 2021-05-31 | 2021-08-27 | 河北工业大学 | Stator type permanent magnet synchronous motor with flux weakening function |
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