CN109004806A - 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
- Publication number
- CN109004806A CN109004806A CN201810831596.8A CN201810831596A CN109004806A CN 109004806 A CN109004806 A CN 109004806A CN 201810831596 A CN201810831596 A CN 201810831596A CN 109004806 A CN109004806 A CN 109004806A
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- Prior art keywords
- permanent magnet
- iron core
- core
- external stator
- magnetism
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- 230000001360 synchronised Effects 0.000 title claims abstract description 18
- 230000000930 thermomechanical Effects 0.000 title claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 59
- 230000005415 magnetization Effects 0.000 claims abstract description 25
- 238000004804 winding Methods 0.000 claims abstract description 14
- 239000011162 core material Substances 0.000 claims 11
- 230000004907 flux Effects 0.000 description 17
- 230000000875 corresponding Effects 0.000 description 10
- 230000005389 magnetism Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005301 magnetic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
-
- 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
- H02K1/2786—Outer rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
-
- 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
Abstract
The present invention 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 present invention 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 present invention relates to magneto technical fields, more particularly to a kind of mechanical magnetism-regulating type permanent magnet synchronous electric thermomechanical components.
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.
Summary of the invention
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 present invention provides a kind of mechanical magnetism-regulating type permanent magnet synchronous electric thermomechanical components.Electric machine assembly of the present invention is due to using bimorph transducer
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 occasions.It is related to
There is the direction of magnetization for radial permanent magnet, rotor core, shaft is possessing bimorph transducer at shaft, and inner stator can revolve
Turn, external stator is fixed, and three-phase windings are wound on external stator.The rotation that the present invention passes through control inner stator under base speed and in base speed
Gyration to realize the size of permanent magnet flux path magnetic resistance, and then has indirectly controlled the useful flux of motor gas-gap, so that electric
Machine has very big adjustable magnetic ability, realizes the purpose of mechanical adjustable magnetic, wants so as to meet operation of the motor under big revolving speed
It asks, avoids traditional magneto and need that very big d-axis demagnetizing current is added when carrying out weak-magnetic speed-regulating, thus make motor
Loss greatly reduce, power factor is improved.
The technical solution that the present invention solves the technical problem is to design a kind of mechanical magnetism-regulating type permanent magnet synchronous electric unit
Part, which is characterized in that including ring-shaped rotor iron core, outer air gap, the direction of magnetization permanent magnet radially, the direction of magnetization along diameter
To inside permanent magnet, external stator core, centralized armature winding, interior air gap and inner-stator iron core；The direction of magnetization is along diameter
It is alternateed to the permanent magnet of outside permanent magnet and the direction of magnetization radially inward and be set in ring-shaped rotor iron core with being not connected to
On 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；It is described
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 beneficial effects of the invention are that: the present invention passes through the control to inner-stator iron core rotation angle degree
System to realize the control to permanent magnet flux path magnetic resistance size, and then indirectly controls the useful flux of motor gas-gap.?
When low speed, the salient pole of inner-stator iron core and the salient pole of external stator are corresponded, and then play the permanent magnet flux of permanent magnet all
Effect, needs the requirement of big torque in slowspeed machine to reach；In high speed, by rotating inner-stator iron core, so that it
Salient pole it is no longer corresponding with the salient pole of external stator core, so that the magnetic resistance of interior air gap be made to increase, and then reduce air-gap flux,
Be achieved that the adjusting of permanent magnet flux so that motor is provided with larger weak magnetic ability so that motor be provided with it is preferable weak
Magnetism speed expansion ability improves the efficiency of motor.
The present invention 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；Double-stator structure is taken full advantage of, by the rotation of inner-stator iron core, controls permanent magnet magnetic path
Magnetic resistance so that motor has very big weak-magnetic speed-regulating ability, while avoiding tradition so as to adjust magneto air-gap flux
Magneto reaches the range of required weak magnetism speed expansion with biggish d-axis demagnetizing current is passed through, so that the loss of magneto subtracts
Small, power factor is improved.Adjustable magnetic system of the invention is inner-stator iron core structure, and adjustable magnetic system structure is simple, robustness
It is good, it can be widely applied in adjustable magnetic system.
Detailed description of the invention
Fig. 1 show the salient pole of both external stator core of the invention, inner-stator iron core to structural schematic diagram when corresponding to；
Fig. 2 show the salient pole of both external stator core of the invention, inner-stator iron core not to structural schematic diagram when corresponding to；
Fig. 3 show external stator core structural schematic diagram of the invention；
Fig. 4 show inner-stator iron core structural schematic diagram of the invention；
Fig. 5 show the salient pole of both external stator core of the invention, inner-stator iron core to figure when corresponding to；
When Fig. 6 show the salient pole of both external stator core of the invention, inner-stator iron core not to corresponding to
Figure；
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 embodiments of the present invention are given below.Specific embodiment is only used for that present invention be described in more detail, unlimited
The protection scope of the claim of this application processed.
The present invention provides a kind of mechanical magnetism-regulating type permanent magnet synchronous electric thermomechanical components in fact, including ring-shaped rotor iron core 1, outer air gap 2,
Permanent magnet 3, permanent magnet 4, external stator core 5, the centralization electricity of the direction of magnetization radially inward of the direction of magnetization radially
Pivot winding 6, interior air gap 7 and inner-stator iron core 8；Direction of magnetization permanent magnet 3 radially and the direction of magnetization are radially
Inside 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 annular
The inside of rotor core 1, inner-stator iron core 8 are located at the inside of external stator core 5；The inner-stator iron core 8 can turn along axial
It is dynamic.
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.
Machinery magnetism-regulating type permanent magnet synchronous electric thermomechanical components of the invention cooperate the conventional fitments such as electric motor end cap, armature spindle i.e. composable
At mechanical magnetism-regulating type permanent magnet synchronous motor.The motor uses outer-rotor structure, i.e. the rotor outside that is located at external stator core,
The structure makes the torque under identical active force larger；The motor uses double-stator structure simultaneously, winds on external stator core
Armature winding, fixed, inner-stator iron core is for adjusting air-gap field, when not needing weak magnetic, interior external stator core salient pole
Corresponding, 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, so that magnetic
The magnetic resistance of logical passage path increases, so that air-gap flux reduces, to achieve the purpose that weak magnetic.
Core innovative point of the present invention is rotor core and the stator core construction part of motor, and rotor core first is located at
It is outer-rotor structure, so that the motor torque arm is longer, torque is higher outside interior external stator core；Secondly the motor uses
Bimorph transducer core structure, inner-stator iron core is for adjusting air-gap field, the air gap with very little between interior external stator core, this
Kind bimorph transducer core structure makes air-gap field easy to adjust, can reach good adjustable magnetic effect, and adjustable magnetic system is default
Sub- iron core, so that its structure is simple, robustness is good.
Fig. 5 and Fig. 6 is to the method for the present invention by finite element analysis software MAXWELL in the low of magneto idle running
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 of the invention and workflow 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 present invention 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 |
|---|---|---|---|
| CN201810831596.8A CN109004806A (en) | 2018-07-26 | 2018-07-26 | A kind of machinery magnetism-regulating type permanent magnet synchronous electric thermomechanical components |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810831596.8A CN109004806A (en) | 2018-07-26 | 2018-07-26 | A kind of machinery magnetism-regulating type permanent magnet synchronous electric thermomechanical components |
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| Publication Number | Publication Date |
|---|---|
| CN109004806A true CN109004806A (en) | 2018-12-14 |
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ID=64597995
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|---|---|---|---|
| CN201810831596.8A Pending CN109004806A (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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072809A (en) * | 2020-08-24 | 2020-12-11 | 清华大学 | Permanent magnet rotating armature motor capable of adjusting magnetic field in mechanical mode |
| EP3754823A1 (en) * | 2019-06-19 | 2020-12-23 | BioCoRe S. Coop. | High-efficiency compact electric generator for wind turbine farms |
| CN112366851A (en) * | 2020-11-05 | 2021-02-12 | 嵊州市双港电器有限公司 | Motor for range hood |
| CN113922615A (en) * | 2021-09-26 | 2022-01-11 | 深圳大学 | Drive-control integrated cooperative robot motor with double stator magnetic regulation |
-
2018
- 2018-07-26 CN CN201810831596.8A patent/CN109004806A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3754823A1 (en) * | 2019-06-19 | 2020-12-23 | BioCoRe S. Coop. | High-efficiency compact electric generator for wind turbine farms |
| CN112072809A (en) * | 2020-08-24 | 2020-12-11 | 清华大学 | Permanent magnet rotating armature motor capable of adjusting magnetic field in mechanical mode |
| CN112366851A (en) * | 2020-11-05 | 2021-02-12 | 嵊州市双港电器有限公司 | Motor for range hood |
| CN113922615A (en) * | 2021-09-26 | 2022-01-11 | 深圳大学 | Drive-control integrated cooperative robot motor with double stator magnetic regulation |
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