CN107370256A - Motor stator, three-phase motor with permanent magnets and compressor - Google Patents
Motor stator, three-phase motor with permanent magnets and compressor Download PDFInfo
- Publication number
- CN107370256A CN107370256A CN201710777799.9A CN201710777799A CN107370256A CN 107370256 A CN107370256 A CN 107370256A CN 201710777799 A CN201710777799 A CN 201710777799A CN 107370256 A CN107370256 A CN 107370256A
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- Prior art keywords
- stator
- motor
- phase
- mrow
- mtd
- Prior art date
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- 238000004804 winding Methods 0.000 claims abstract description 70
- 230000004323 axial length Effects 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- 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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Windings For Motors And Generators (AREA)
Abstract
The invention discloses a kind of motor stator, three-phase motor with permanent magnets and compressor.The parallel branch number n of stator winding determines according to parameter Ψ described in every phase in the present invention, wherein, set Ψ=Bt × Wt × Z × L × N × k.When Ψ is larger, can be by setting n value, phase magnetic linkage is reduced, make the phase magnetic linkage within the specific limits, so as to which the back emf coefficient also be controlled within the specific limits, and then make magneto that there is high back-emf at the low rotational speed, at high speed with low back-emf, ensure that the motor is respectively provided with excellent performance under the slow-speed of revolution and high rotating speed.
Description
Technical field
The present invention relates to Compressor Technology field, more particularly to a kind of motor stator, three-phase motor with permanent magnets and compressor.
Background technology
Compressor is controlled with magneto using transducer drive.The back emf coefficient of magneto is higher, then is entering
Before weak magnetic control, running current is lower, advantageously reduces frequency converter loss；And the busbar voltage of frequency converter output has limit
Value, when the back emf coefficient of magneto is higher, weak magnetic region, running current increase are easily accessible, loss increases, or even can not
Reliability service at high speed.
Therefore, the magneto with low back-emf with high back emf coefficient and during high speed during low speed, is always industry
The emphasis of interior research.
The above is only used for auxiliary and understands technical scheme, does not represent and recognizes that the above is existing skill
Art.
The content of the invention
It is a primary object of the present invention to provide a kind of motor stator, three-phase motor with permanent magnets and compressor, it is intended to solve such as
The technical problem what is controlled to back emf coefficient.
To achieve the above object, the present invention provides a kind of motor stator, and the motor stator includes：
Stator core, the stator core have it is multiple along its circumferentially spaced stator tooth, it is two neighboring described fixed
Sub- tooth limits stator slot；
Stator winding, the stator winding are set around on the stator tooth and including multiple coil groups, each coils
Group has at least two joints, and at least one at least two joints of each coil group is lead-in line joint, and another is
Outlet joint；
More motor down-leads, for connecting external circuit and the stator winding, the more motor down-leads are divided into two groups,
First group of motor down-lead connects the lead-in line joint, and second group of motor down-lead connects the outlet joint；
The parallel branch number n of stator winding determines according to parameter Ψ described in per phase, wherein, set Ψ=Bt × Wt × Z × L
× N × k, Bt are that the unloaded maximum magnetic flux of the stator tooth is close, and Wt is the width of the stator tooth, and Z is the quantity of the stator slot,
L is the axial length of the stator core, and N is the number of turn of coil, and k is the number of coils of stator winding described in per phase.
Preferably, the parallel branch number n of stator winding is determined according to parameter Ψ by following formula described in every phase：
Wherein, n and s is positive integer.
Preferably, the stator winding is centralized winding.
Preferably, the number of coils k of the stator winding and quantity Z of the stator slot described in every phase meets k=Z/3.
Preferably, the stator winding is distributed winding.
Preferably, the number of coils k of the stator winding and quantity Z of the stator slot described in every phase meets k=Z/6.
Preferably, the conductor line footpath of the stator winding is less than or equal to 1.2mm.
The present invention also proposes a kind of three-phase motor with permanent magnets, and the three-phase motor with permanent magnets includes：Rotor and as described above
Motor stator.
Preferably, the number of pole-pairs P of the rotor is more than or equal to 2.
The present invention also proposes a kind of compressor, and the compressor includes three-phase motor with permanent magnets as described above.
The parallel branch number n of stator winding determines according to parameter Ψ described in every phase in the present invention, when Ψ is larger, can pass through
N value is set, phase magnetic linkage is reduced, makes the phase magnetic linkage within the specific limits, so as to which the back emf coefficient also be controlled
In certain limit, and then make magneto that there is high back-emf at the low rotational speed, at high speed with low back-emf, ensure institute
State motor and be respectively provided with excellent performance under the slow-speed of revolution and high rotating speed.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Structure according to these accompanying drawings obtains other accompanying drawings.
Fig. 1 is structural representation of the three-phase motor with permanent magnets on axle vertical plane in the embodiment of the present invention；
Fig. 2 is the sectional view of three-phase motor with permanent magnets vertically in Fig. 1；
Fig. 3 is the structure chart of a phase stator winding of three-phase motor with permanent magnets in an embodiment of the present invention；
Fig. 4 is the structure chart of a phase stator winding of three-phase motor with permanent magnets in another embodiment of the present invention；
Fig. 5 is the structure chart of a phase stator winding of three-phase motor with permanent magnets in another embodiment of the invention；
Fig. 6 is the structural representation of the embodiment of compressor one of the present invention.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 10 | Motor stator | 101 | Stator core |
| 20 | Rotor | 101a | Stator slot |
| 30 | Shell | 101b | Stator tooth |
| 31 | Accommodating chamber | 102 | Coil group |
| 40 | Bent axle | 103 | Motor down-lead |
| 50 | Cylinder | 103a | First group of motor down-lead |
| 51 | Compression chamber | 103b | Second group of motor down-lead |
| 60 | Piston | ||
| 70 | Base bearing | ||
| 80 | Supplementary bearing |
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not paid it is all its
His embodiment, belongs to the scope of protection of the invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining the relative position relation under a certain particular pose (as shown in drawings) between each part, motion conditions etc., if should
When particular pose changes, then directionality instruction also correspondingly changes therewith.
In addition, the description for being related to " first ", " second " etc. in the present invention is only used for describing purpose, and it is not intended that referring to
Show or imply its relative importance or imply the quantity of the technical characteristic indicated by indicating.Thus, " first ", " are defined
At least one this feature can be expressed or be implicitly included to two " feature.In addition, the technical scheme between each embodiment can
To be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical scheme occurs
It is conflicting or will be understood that the combination of this technical scheme is not present when can not realize, also not in the protection model of application claims
Within enclosing.
The present invention proposes a kind of motor stator, the three-phase motor with permanent magnets with the motor stator and with the three-phase permanent
The compressor of motor.
Below using the quantity of stator slot as 9, the magnetic pole of rotor illustrates exemplified by being 6, but the not protection to the present invention
Scope is limited.Reference picture 1~2, the three-phase motor with permanent magnets include motor stator 10 and rotor 20, wherein, motor is fixed
Son 10 includes stator core 101 and stator winding, stator core 101 with 9 along its circumferentially spaced stator tooth 101b,
Two neighboring stator tooth 101b limits stator slot 101a；Stator winding is set around on stator tooth 101b, and stator winding includes
Multiple coil groups 102, each coil group 102 have at least two joints.
Wherein, rotor 20 has rotor core 201 and 6 permanent magnets 202 being arranged on rotor core 201, can
Understand, the half of the quantity of the permanent magnet is number of pole-pairs P, i.e. P=3 in the present embodiment, in the specific implementation, can incite somebody to action
The number of pole-pairs P is arranged to 2≤P≤5, and within the range, magneto performance is high and beneficial to control.
It is understood that because each coil group 102 has multiple coils, one or more in each coil group 102
Individual coil can be serially connected, and when multiple coils in a coil group 102 are all connected in series, then the coil group 102 has
There are two joints；When multiple coils in a coil group 102 are not connected in series all, then piece-ups of the coil group 102
Amount can be more than two.
With continued reference to Fig. 1~2, the motor stator 10 also includes more motor down-leads 103, and more motor down-leads 103 are used for
Connection external circuit (not shown) and stator winding, every motor down-lead 103 are connected with a joint of a coil group 102,
Alternatively, stator winding described in three-phase can be divided into two groups, every group of each joint with A phase, B phase, C phase winding, with two groups
The motor down-lead 103 of joint connection is also classified into two groups and (103a is identified as corresponding to first group, is identified as corresponding to second group
103b), every group of motor down-lead 103 connects one of which winding joint.
It is understood that because every motor down-lead 103 is connected with a joint of a coil group 102, therefore, often
Each joint of individual coil group 102 is connected with external circuit, so that external circuit can be according to the working condition pair of motor
The mode of connection of multiple coil groups 102 switches in motor.Such as：External circuit is according to the different operating frequency of motor, control
Stator winding processed switches between star-connection mode and delta connection mode, when motor is in the slow-speed of revolution, can make
The stator winding operates in series connection, i.e. stator winding uses star-connection mode, when motor is in high rotating speed, can make
The stator winding operates in parallel state, i.e. stator winding uses star-connection mode.
Correspondingly, the parallel branch number n of stator winding determines according to parameter Ψ described in every phase, wherein, setting Ψ=Bt ×
Wt × Z × L × N × k, Bt are that the unloaded maximum magnetic flux of the stator tooth is close, and Wt is the width of the stator tooth, and Z is the stator
The quantity of groove, L are the axial length of the stator core, and N is the number of turn of coil, and k is the coil number of stator winding described in per phase
Amount.
Because temperature can have an impact to the Bt of stator tooth, for ease of calculating, in the present embodiment, a default temperature can be selected
Degree, such as：25 DEG C, certainly, other temperature are may also be configured to, the present embodiment is not any limitation as to this.
It will be appreciated that above-mentioned parameter Ψ and the proportional example of phase magnetic linkage, and phase magnetic linkage can directly affect the anti-electricity of motor
Gesture coefficient, to ensure that the back emf coefficient is in certain limit, in the present embodiment, the branch in parallel of stator winding described in per phase
Way n determines according to Ψ, when parameter Ψ is larger, can reduce phase magnetic linkage by setting n value, make the phase magnetic linkage one
Determine in scope, so as to which the back emf coefficient also be controlled within the specific limits, and then magneto is had at the low rotational speed
High back-emf, at high speed with low back-emf, ensure that the motor is respectively provided with excellent property under the slow-speed of revolution and high rotating speed
Energy.
In the specific implementation, according to many experiments, in order to be further ensured that the motor under the slow-speed of revolution and high rotating speed,
With excellent performance.In the present embodiment, the parallel branch number n of stator winding can be true by following formula according to parameter Ψ described in per phase
It is fixed：
Wherein, n and s is positive integer.
In the specific implementation, the parallel branch number n of stator winding described in each phase may be configured as identical value, may be alternatively provided as
Different value, but the problems such as in view of motor working efficiency when realizing, in the present embodiment, by stator winding described in each phase and
Connection circuitry number n is arranged to identical value.
It should be noted that the unit of the parameter Ψ is Wb, correspondingly, 1 and 1.75 unit in above-mentioned formula are same
Sample is Wb, be will not be repeated here.
It will be appreciated that when 1<Ψ<When 1.75, n=k/s, because n and s is positive integer, so, it may be determined that n value
Scope, it is assumed that k=3, now, s value can be 1,3, and correspondingly, n value has 1,3 both possibility, it is assumed that k=6, this
When, s value can be 1,2,3,6, and correspondingly, n value has 1,2,3,6 these four possibility.
In the specific implementation, the stator winding can use centralized winding (i.e. Double Layer Winding), correspondingly, described in per phase
The number of coils k of stator winding and the quantity Z of the stator slot meet k=Z/3, above-mentioned Fig. 1~2 with using the centralization around
Exemplified by group.
Certainly, the stator winding can also use distributed winding (i.e. Single-layer Windings), correspondingly, per stator described in phase around
The number of coils k of group meets k=Z/6 with the quantity Z of the stator slot.
It should be noted that conductor line footpath≤1.2mm of the stator winding.Thereby it is ensured that the system that stator winding is good
The property made.
It should be understood that above-mentioned three-phase motor with permanent magnets can be also used for other fields, with specific reference to the model and chi of motor
Depending on very little.
Reference picture 3, it is assumed that per the coil number k=3 of phase stator winding, when the Ψ for calculating acquisition meets Ψ≤1 or 1<Ψ<
When 1.75, the parallel branch number n=1 per phase stator winding can be set, i.e., connected per between 3 coils of phase stator winding.No
With between phase stator winding, below certain critical speed, threephase stator winding uses star-connection mode；More than certain critical speed
Afterwards, threephase stator winding uses star-connection mode.
Magneto has high back-emf at the low rotational speed, at high speed with low back-emf, so as to, in the slow-speed of revolution and
Under high rotating speed, excellent performance is respectively provided with.
Reference picture 4, it is also assumed that the coil number k=3 per phase stator winding, when calculate the Ψ that obtains meet Ψ >=1.75 or
1<Ψ<When 1.75, the parallel branch number n=3 per phase stator winding can be set, i.e., often between 3 coils of phase stator winding simultaneously
Connection, so as to realize that motor under the slow-speed of revolution and high rotating speed, is respectively provided with excellent performance.
Reference picture 5, it is assumed that per the coil number k=4 (such as the pole permanent magnet motor of 24 groove 4) of phase stator winding, obtained when calculating
Ψ meet 1<Ψ<When 1.75, the parallel branch number n=2 per phase stator winding can be set, i.e., often 4 coils of phase winding it
Between, it is connected in parallel again after connecting two-by-two, so as to realize that motor under the slow-speed of revolution and high rotating speed, is respectively provided with excellent performance.
As shown in fig. 6, compressor can include shell 30, bent axle 40, cylinder 50, piston 60, base bearing 70, supplementary bearing 80
And three-phase motor with permanent magnets as described above.
Wherein, shell 30 is cylindrical in shape setting, and it has along its axially extending accommodating chamber 31, bent axle 40 and is located at accommodating chamber
In 31 and along the axial arranged of shell 30, the lower end of bent axle 40 passes through cylinder 50, also, bent axle 40 stretches into the part shape of cylinder 50
Piston 60 is set with into eccentric part and thereon, base bearing 70 and supplementary bearing 80 are set in song from the top and bottom of bent axle 40 respectively
On axle 40, and it is fixedly connected with the upper and lower ends of cylinder 50 and is sealed with the compression chamber 51 to cylinder 50.Motor is arranged on outer
In the accommodating chamber 31 of shell 30, also, the rotor core 201 of motor is connected with the upper end of bent axle 40.
In the present embodiment, the external circuit that motor is arranged on the inwall of the accommodating chamber 31 of compressor can be connected
Binding post, binding post grafting corresponding with the plug connector of motor, so as to which motor down-lead 103 be electrically connected with external circuit.
It is understood that because compressor proposed by the present invention and three-phase motor with permanent magnets include above-mentioned motor stator 10
All schemes of all embodiments, therefore, at least have with the identical technique effect of motor stator 10, do not explain one by one herein
State.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every at this
Under the inventive concept of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in the scope of patent protection of the present invention.
Claims (10)
1. a kind of motor stator, it is characterised in that the motor stator includes：
Stator core, the stator core have multiple along its circumferentially spaced stator tooth, the two neighboring stator tooth
Limit stator slot；
Stator winding, the stator winding are set around on the stator tooth and including multiple coil groups, each coil group tools
There are at least two joints, at least one at least two joints of each coil group is lead-in line joint, and another is outlet
Joint；
More motor down-leads, for connecting external circuit and the stator winding, the more motor down-leads are divided into two groups, and first
Group motor down-lead connects the lead-in line joint, and second group of motor down-lead connects the outlet joint；
The parallel branch number n of stator winding determines according to Ψ described in per phase, wherein, Ψ=Bt × Wt × Z × L × N × k is set,
Bt is that the unloaded maximum magnetic flux of the stator tooth is close, and Wt is the width of the stator tooth, and Z is the quantity of the stator slot, and L is described
The axial length of stator core, N are the number of turn of coil, and k is the number of coils of stator winding described in per phase.
2. motor stator as claimed in claim 1, it is characterised in that parallel branch number n per stator winding described in phase according to
Parameter Ψ is determined by following formula：
<mrow>
<mi>n</mi>
<mo>=</mo>
<mfenced open = "{" close = "">
<mtable>
<mtr>
<mtd>
<mrow>
<mn>1</mn>
<mo>,</mo>
</mrow>
</mtd>
<mtd>
<mrow>
<mi>&Psi;</mi>
<mo>&le;</mo>
<mn>1</mn>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<mi>k</mi>
<mo>/</mo>
<mi>s</mi>
<mo>,</mo>
</mrow>
</mtd>
<mtd>
<mrow>
<mn>1</mn>
<mo><</mo>
<mi>&Psi;</mi>
<mo><</mo>
<mn>1.75</mn>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<mi>k</mi>
<mo>,</mo>
</mrow>
</mtd>
<mtd>
<mrow>
<mi>&Psi;</mi>
<mo>&GreaterEqual;</mo>
<mn>1.75</mn>
</mrow>
</mtd>
</mtr>
</mtable>
</mfenced>
</mrow>
Wherein, n and s is positive integer.
3. motor stator as claimed in claim 1, it is characterised in that the stator winding is centralized winding.
4. motor stator according to claim 3, it is characterised in that the number of coils k of stator winding and institute described in per phase
The quantity Z for stating stator slot meets k=Z/3.
5. motor stator according to claim 1, it is characterised in that：The stator winding is distributed winding.
6. motor stator according to claim 5, it is characterised in that the number of coils k of stator winding and institute described in per phase
The quantity Z for stating stator slot meets k=Z/6.
7. according to motor stator according to any one of claims 1 to 6, it is characterised in that the conductor lines of the stator winding
Footpath is less than or equal to 1.2mm.
8. a kind of three-phase motor with permanent magnets, it is characterised in that the three-phase motor with permanent magnets includes：Rotor and claim 1~
Motor stator any one of 7.
9. three-phase motor with permanent magnets according to claim 8, it is characterised in that the number of pole-pairs P of the rotor be more than etc.
In 2.
10. a kind of compressor, it is characterised in that the compressor includes the three-phase permanent any one of claim 8~9
Motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710777799.9A CN107370256B (en) | 2017-08-31 | 2017-08-31 | Motor stator, three-phase permanent magnet motor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710777799.9A CN107370256B (en) | 2017-08-31 | 2017-08-31 | Motor stator, three-phase permanent magnet motor and compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107370256A true CN107370256A (en) | 2017-11-21 |
| CN107370256B CN107370256B (en) | 2023-03-31 |
Family
ID=60311921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710777799.9A Active CN107370256B (en) | 2017-08-31 | 2017-08-31 | Motor stator, three-phase permanent magnet motor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107370256B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108512334A (en) * | 2018-04-24 | 2018-09-07 | 北京金风科创风电设备有限公司 | Modularized stator and wind generating set |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2733824A1 (en) * | 2012-11-16 | 2014-05-21 | Siemens Aktiengesellschaft | Stator for an electrical machine |
| CN104393699A (en) * | 2014-12-16 | 2015-03-04 | 东南大学 | Winding unitized parallel winding structure of alternating current motor stator winding |
| CN105071573A (en) * | 2015-07-16 | 2015-11-18 | 擎声自动化科技（上海）有限公司 | Stator structure with printed circuit board winding |
| CN106787290A (en) * | 2017-01-21 | 2017-05-31 | 浙江方正电机股份有限公司 | A kind of stator structure of three-phase motor and motor |
-
2017
- 2017-08-31 CN CN201710777799.9A patent/CN107370256B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2733824A1 (en) * | 2012-11-16 | 2014-05-21 | Siemens Aktiengesellschaft | Stator for an electrical machine |
| CN104393699A (en) * | 2014-12-16 | 2015-03-04 | 东南大学 | Winding unitized parallel winding structure of alternating current motor stator winding |
| CN105071573A (en) * | 2015-07-16 | 2015-11-18 | 擎声自动化科技（上海）有限公司 | Stator structure with printed circuit board winding |
| CN106787290A (en) * | 2017-01-21 | 2017-05-31 | 浙江方正电机股份有限公司 | A kind of stator structure of three-phase motor and motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108512334A (en) * | 2018-04-24 | 2018-09-07 | 北京金风科创风电设备有限公司 | Modularized stator and wind generating set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107370256B (en) | 2023-03-31 |
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