CN114374288B - Stator and winding assembly thereof - Google Patents
Stator and winding assembly thereof Download PDFInfo
- Publication number
- CN114374288B CN114374288B CN202110540314.0A CN202110540314A CN114374288B CN 114374288 B CN114374288 B CN 114374288B CN 202110540314 A CN202110540314 A CN 202110540314A CN 114374288 B CN114374288 B CN 114374288B
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- 238000004804 winding Methods 0.000 title claims abstract description 316
- 239000010410 layer Substances 0.000 description 62
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Classifications
-
- 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
- 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
Abstract
The present disclosure relates to a stator and a winding assembly thereof. The stator comprises a stator core and a winding assembly. The stator core includes a tube wall and a hollow portion. The winding assembly is arranged in the hollow part and comprises a first winding group and a second winding group. The first winding group comprises a plurality of winding units. The plurality of winding units are mutually arranged side by side and are arranged on the inner side of the pipe wall in a surrounding mode, and an outer layer is defined jointly. The second winding group comprises a plurality of winding units. The plurality of winding units are mutually arranged side by side and are arranged on the inner side of the outer layer in a surrounding mode, and the inner layer is defined jointly. Wherein the projection of any winding unit of the inner layer on the pipe wall is partially overlapped with each projection of two adjacent winding units of the outer layer on the pipe wall. The number of turns of the coil unit of the first winding group is larger than the number of turns of the coil unit of the second winding group.
Description
Technical Field
The present disclosure relates to a stator and a winding assembly thereof, and more particularly, to a stator of a slotless rotary electric machine and a winding assembly thereof.
Background
Currently, rotating electrical machines have been widely used in various fields and applications, such as electric motors. In general, a rotating electrical machine includes a stator and a rotor. By the stator forming a magnetic flux and acting it on the rotor, the rotor can be rotated by the electromagnetic force generated. In the past, rotating electrical machines have been constructed based on slotted designs. Wherein the windings are wound between the tooth slot structures in the stator. With the development of the technology, since the slotless design does not have a tooth slot structure, the problem of tooth slot effect can be eliminated compared with the slotted design, and the device has the advantage of stable operation in a wide speed range. Accordingly, the slotless rotary electric machine gradually replaces the previous slotted rotary electric machine.
In the prior art, a winding assembly of a stator in a slotless rotary electric machine has a single-layer, double-layer or multi-layer structure. As shown in fig. 1A and 1B, the stator 1 includes a stator core 11 and a winding assembly 12. The winding assembly 12 includes a plurality of winding units 13 having the same structure. The plurality of winding units 13 are arranged and wound in a tubular shape and are disposed on the inner side surface of the stator core 11. Each winding unit 13 includes a first side section 13a and a second side section 13b that are symmetrical to each other, and the first side section 13a of each winding unit 13 is located at an opposite inner side of the second side section 13b of the other winding unit 13 to form a double-layer tubular structure, i.e. the first side section 13a is located at an inner layer, and the second side section 13b is located at an outer layer. In the inner space of the stator core 11, the closer to the inner side surface of the stator core 11, the larger space is provided for the winding. Under this structural design, since each winding unit 13 is disposed on both the inner layer and the outer layer, the winding slot ratio of the outer layer is generally lower than that of the inner layer, so that the space of the outer layer of the winding assembly is not fully utilized. In addition, the arrangement mode of the winding unit is easy to generate gaps and deviations, so that the precision of the winding assembly is difficult to improve.
Therefore, there is a need to develop a stator and a winding assembly thereof that can solve the above problems to solve the problems of the prior art.
Disclosure of Invention
It is a primary object of the present disclosure to provide a stator and a winding assembly thereof, which solve and improve the aforementioned problems and disadvantages of the related art.
Another object of the present disclosure is to provide a stator and a winding assembly thereof. The winding units of the winding assembly are stacked in two layers in the radial direction of the stator core, and the number of coil turns of the winding unit located at the outer layer is larger than the number of coil turns of the winding unit located at the inner layer. Therefore, the winding slot occupying rate of the outer layer of the winding assembly can be approximately equal to that of the inner layer, so that the technical effects of effectively utilizing the inner space of the stator core, improving the torque characteristic of the rotating motor and simplifying the manufacturing procedure of the winding assembly are achieved.
In order to achieve the foregoing objective, the present disclosure provides a stator, which is suitable for a rotating electrical machine, and includes a stator core and a winding assembly. The stator core includes a tube wall and a hollow portion. The winding assembly is arranged in the hollow part and comprises a first winding group and a second winding group. The first winding group comprises a plurality of winding units. The plurality of winding units are mutually arranged side by side and are arranged on the inner side of the pipe wall in a surrounding mode, and an outer layer is defined jointly. The second winding group comprises a plurality of winding units. The plurality of winding units are mutually arranged side by side and are arranged on the inner side of the outer layer in a surrounding mode, and the inner layer is defined jointly. Wherein the projection of any winding unit of the inner layer on the pipe wall is partially overlapped with each projection of two adjacent winding units of the outer layer on the pipe wall. The number of turns of the coil unit of the first winding group is larger than the number of turns of the coil unit of the second winding group.
In order to achieve the above-mentioned object, the present disclosure further provides a winding assembly for being disposed inside a stator, and the stator includes a tube wall. The winding assembly comprises a first winding group and a second winding group. The first winding group comprises a plurality of winding units. The plurality of winding units are mutually arranged side by side and are arranged on the inner side of the pipe wall in a surrounding mode, and an outer layer is defined jointly. The second winding group comprises a plurality of winding units. The plurality of winding units are mutually arranged side by side and are arranged on the inner side of the outer layer in a surrounding mode, and the inner layer is defined jointly. Wherein the projection of any winding unit of the inner layer on the pipe wall is partially overlapped with each projection of two adjacent winding units of the outer layer on the pipe wall. The number of turns of the coil unit of the first winding group is larger than the number of turns of the coil unit of the second winding group.
Drawings
Fig. 1A is a schematic view showing a part of a winding assembly of a stator of a conventional slotless rotary electric machine.
Fig. 1B is a schematic cross-sectional view illustrating the winding assembly and the stator core shown in fig. 1A.
Fig. 2A is a schematic diagram of a stator and a rotor of a rotating electrical machine according to an embodiment of the present disclosure.
Fig. 2B is a schematic diagram illustrating a winding assembly and a stator core of the stator shown in fig. 2A.
Fig. 3A is a schematic diagram illustrating an arrangement of the winding units of the first winding group shown in fig. 2B.
FIG. 3B is a schematic diagram showing a cross-sectional structure of the stator shown in FIG. 2A on a section A-A'.
Fig. 4 is a schematic view illustrating a partial sectional structure of a winding unit of an outer layer and an inner layer of a winding assembly according to another embodiment of the present disclosure.
Reference numerals illustrate:
100: rotary electric machine
1. 2: stator
11. 21: stator core
210: pipe wall
211: hollow part
12. 22: winding assembly
22a: first winding group
22b: second winding group
221. 221': first winding unit
222: second winding unit
223: third winding unit
224: fourth winding unit
225. 225': fifth winding unit
226. 226': sixth winding unit
13: winding unit
13a, 221a, 222a, 223a, 224a, 225a, 226a: first side section
13b, 221b, 222b, 223b, 224b, 225b, 226b: second side section
221c, 222c, 223c, 224c, 225c, 226c: an opening part
3: rotor
A-A': tangent line
B: an axis line
C: datum line
L: center line
Detailed Description
Some exemplary embodiments embodying features and advantages of the present disclosure will be described in detail in the following description. It will be understood that the present disclosure is capable of various modifications in the various embodiments, all without departing from the scope of the present disclosure, and that the description and drawings are intended to be illustrative in nature and not to be limiting of the present disclosure.
Please refer to fig. 2A, 2B, 3A, 3B. The stator 2 of the present disclosure may be applied to a rotating electrical machine 100, for example, to an electric motor. In the present embodiment, the rotary electric machine 100 is preferably a three-phase motor, and more preferably a slotless rotary electric machine, but not limited thereto. The rotating electrical machine 100 further includes a rotor 3. As shown in fig. 2A, the rotor 3 is provided in the stator 2 and rotatable relative to the stator 2.
In the present embodiment, the stator 2 includes a stator core 21 and a winding assembly 22. The stator core 21 includes a tube wall 210 and a hollow portion 211, and the rotor 3 of the rotary electric machine 100 is provided in the hollow portion 211. The winding assembly 22 is disposed in the hollow portion 211 and located between the tube wall 210 and the rotor 3. The winding assembly 22 includes a first winding group 22a and a second winding group 22b. The first winding group 22a includes a plurality of winding units. The plurality of winding units are disposed side by side and around the inner side of the pipe wall 210, and together define an outer layer. The second winding group 22b includes a plurality of winding units. The plurality of winding units are mutually arranged side by side and are arranged on the inner side of the outer layer in a surrounding mode, and the inner layer is defined jointly. Wherein the projection of any winding unit of the inner layer on the pipe wall 210 is partially overlapped with each projection of two adjacent winding units of the outer layer on the pipe wall 210. The number of turns of the winding units of the first winding group 22a is greater than the number of turns of the winding units of the second winding group 22b.
In the present embodiment, the first winding group 22a includes a first winding unit 221, a second winding unit 222 and a third winding unit 223, and the second winding group 22b includes a fourth winding unit 224, a fifth winding unit 225 and a sixth winding unit 226. The first winding unit 221, the second winding unit 222 and the third winding unit 223 are arranged in parallel and around the inner side of the tube wall 210 of the hollow portion 211 of the stator core 21, and together define an outer layer. The fourth winding unit 224, the fifth winding unit 225 and the sixth winding unit 226 are disposed side by side and around the inner side of the outer layer, and together define an inner layer. Wherein the radius of the circle defined by the outer layer is larger than the radius of the circle defined by the inner layer. That is, the first, second, third, fourth, fifth and sixth winding units 221, 222, 223, 224, 225 and 226 are overlapped and staggered with each other in the radial direction of the stator core 21 to form the winding assembly 22 having a double-layered tubular structure in the hollow portion 211.
In the present embodiment, the first winding unit 221 and the fourth winding unit 224 are disposed opposite to each other on two sides of the hollow portion 211, and together define a first combination. The second winding unit 222 and the fifth winding unit 225 are disposed opposite to each other on two sides of the hollow portion 211, and together define a second combination. The third winding unit 223 and the sixth winding unit 226 are disposed opposite to each other on two sides of the hollow portion 211, and together define a third combination. The first phase power is applied to a first combination defined by the first and fourth winding units 221 and 224, the second phase power is applied to a second combination defined by the second and fifth winding units 222 and 225, and the third phase power is applied to a third combination defined by the third and sixth winding units 223 and 226. In the present embodiment, the phase difference between the first phase power source and the second phase power source is 120 degrees, the phase difference between the second phase power source and the third phase power source is 120 degrees, and the phase difference between the third phase power source and the first phase power source is 120 degrees, so that the rotor 3 disposed in the hollow portion 211 is rotated to realize the control of the three-phase motor.
In the present embodiment, the first winding unit 221 at least partially overlaps the fifth winding unit 225 and the sixth winding unit 226, the second winding unit 222 at least partially overlaps the fourth winding unit 224 and the sixth winding unit 226, and the third winding unit 223 at least partially overlaps the fourth winding unit 224 and the fifth winding unit 225. In other words, the projections of the first winding unit 221 on the pipe wall 210 at least partially overlap with the projections of the fifth winding unit 225 and the sixth winding unit 226 on the pipe wall 210, the projections of the second winding unit 222 on the pipe wall 210 at least partially overlap with the projections of the fourth winding unit 224 and the sixth winding unit 226 on the pipe wall 210, and the projections of the third winding unit 223 on the pipe wall 210 at least partially overlap with the projections of the fourth winding unit 224 and the fifth winding unit 225 on the pipe wall 210. In the present embodiment, each winding unit 221-226 includes a first side section 221 a-226 a, a second side section 221 b-226 b and an opening 221 c-226 c, and the first side section 221 a-226 a and the second side section 221 b-226 b are respectively located at two sides of the opening 221 c-226 c. In the present embodiment, the center line L of the winding unit is parallel to the extending direction of the opening. Wherein the first side section 221a of the first winding unit 221 is completely overlapped with the second side section 225b of the fifth winding unit 225, and the second side section 221b of the first winding unit 221 is completely overlapped with the first side section 226a of the sixth winding unit 226. The first side section 222a of the second winding unit 222 is completely overlapped with the second side section 226b of the sixth winding unit 226, and the second side section 222b of the second winding unit 222 is completely overlapped with the first side section 224a of the fourth winding unit 224. The first side section 223a of the third winding unit 223 is completely overlapped with the second side section 224b of the fourth winding unit 224, and the second side section 223b of the third winding unit 223 is completely overlapped with the first side section 225a of the fifth winding unit 225. Thereby, the winding units 221 to 226 can be closely arranged in the hollow 211.
In the present embodiment, the winding units 221 to 226 may be, for example, but not limited to, spiral coils, and the coils of the winding units 221 to 226 are arranged in a direction parallel to the circumference of the stator core 21, that is, parallel to the outer edge of the rotor 3 of the rotating electrical machine 100. For example, as shown in fig. 3B, the reference line C is a line connecting the center line L of the first winding unit 221 and the center line L of the fourth winding unit 224. In the present embodiment, the coils on the first side section 221a and the second side section 221b may be arranged in a direction approaching the reference line C, or may be arranged in a direction separating from the reference line C.
As shown in fig. 2B, in the present embodiment, the outer layer formed by the first winding group 22a and the inner layer formed by the second winding group 22B are concentric circles and have an axis B together, and the radius of the outer layer is larger than that of the inner layer. The center lines L of the winding units 221 to 226 are parallel to the axis B, but not limited thereto. The winding units 221-226 each have a circular arc-shaped profile and have a curvature on the short side. In the present embodiment, one long side of each of the outer layer winding units 221, 222, 223 is adjacent to the long side of the other winding unit 221, 222, 223, and the radian of each of the winding units 221, 222, 223 is approximately equal toTo collectively form a continuous tubular structure. The long side of each winding unit 224, 225, 226 of the inner layer is adjacent to the long side of the other winding unit 224, 225, 226, and the radian of the winding units 224, 225, 226 is approximately equal to +.>To form a continuous tubular structure, but not limited thereto. In some embodiments, the outer winding units 221, 222, 223 and each of the inner winding units 224, 225, 226 are connected and fixed to each other by connectors, but not limited thereto. Therefore, the winding units 221-226 can be simply and quickly combined into the winding assembly 22, so that the technical effects of simplifying the process of the winding assembly 22 and improving the precision of the winding assembly 22 are achieved.
In this embodiment, the first side section and the second side section of each winding unit are located on the same layer, i.e. both are located on the inner layer or the outer layer. Accordingly, the number of coil turns of the outer-layer-positioned winding units 224, 225, 226 and the number of coil turns of the inner-layer-positioned winding units 221, 222, 223 can be independently designed. In the prior art, each winding unit has the same number of turns, and the first side section of each winding unit and the second side section of the other winding unit overlap each other. In the structure of the double-layer winding assembly, the radius difference is formed between the inner layer and the outer layer, so that the outer layer has a larger space for arranging the coil compared with the inner layer. The structural design of the present disclosure may facilitate increasing the coil slot occupancy of the coil winding assembly 22 as compared to the prior art.
For example, fig. 4 is a schematic diagram illustrating a partial cross-sectional structure of a winding unit of an outer layer and an inner layer of a winding assembly according to another embodiment of the present disclosure. As shown in fig. 4, the first winding unit 221' located at the outer layer may include four coils more than the fifth and sixth winding units 225', 226' located at the inner layer in the same angular range. In the embodiment shown in fig. 3B, since each winding has the same arc, the outer winding unit may also have a larger number of turns. Thus, the outer winding units 221, 222, 223 have 9 turns of coil, respectively, while the inner winding units 224, 225, 226 have 8 turns of coil, respectively. That is, the outer layer of the winding units 221, 222, 223 has at least one turn more coil than the inner layer of the winding units 224, 225, 226. It should be added that the difference between the number of turns of the outer winding unit and the inner winding unit can be adjusted according to the wire diameter of the coil. In embodiments where the coil wire diameter is smaller, the difference in the number of turns of the outer layer winding unit and the inner layer winding unit may be increased accordingly. Therefore, the present disclosure can increase the slot occupancy of the outer winding of the double-layer winding assembly 22, and can effectively utilize the space of the hollow portion 211 of the stator core 21, thereby achieving the technical effect of improving the torque characteristics of the rotating electrical machine 100.
In summary, the present disclosure provides a stator and a winding assembly thereof, wherein the first side section and the second side section of each winding unit are disposed on the same layer, so that the number of turns of the coil of the outer winding unit can be increased, and the number of turns of the coil of the outer winding unit is larger than the number of turns of the coil of the inner winding unit, thereby improving the slot occupation rate of the outer winding of the double-layer winding assembly. In addition, the winding units are closely arranged by the contour design of the winding units, so that the winding assembly process is simplified and the precision of the winding assembly is improved. Therefore, the present disclosure can effectively utilize the inner space of the stator core and achieve the technical effect of improving the torque characteristics of the rotating electrical machine.
The present disclosure is susceptible to various modifications by those skilled in the art without departing from the scope of the appended claims.
Claims (10)
1. A stator adapted for use in a rotating electrical machine, comprising:
a stator core comprising a tube wall and a hollow portion; and
a winding assembly disposed in the hollow portion, and comprising:
the first winding group comprises a plurality of winding units which are mutually arranged side by side and around the inner side of the pipe wall and jointly define an outer layer; and
the second winding group comprises a plurality of winding units, wherein the winding units are arranged side by side and around the inner side of the outer layer, and jointly define an inner layer, the projection of any winding unit of the inner layer on the pipe wall is partially overlapped with the projections of two adjacent winding units of the outer layer on the pipe wall, and the number of turns of the winding units of the first winding group is larger than that of the winding units of the second winding group.
2. The stator of claim 1, wherein the first winding group comprises a first winding unit, a second winding unit and a third winding unit, the second winding group comprises a fourth winding unit, a fifth winding unit and a sixth winding unit, the first winding unit, the second winding unit, the third winding unit, the fourth winding unit, the fifth winding unit and the sixth winding unit each comprise a first side section, a second side section and an opening, the first side section and the second side section are respectively located at two sides of the opening, wherein the first side section of the first winding unit overlaps with the second side section of the fifth winding unit, the second side section of the first winding unit overlaps with the first side section of the sixth winding unit, the second side section of the second winding unit overlaps with the second side section of the sixth winding unit, the second side section of the second winding unit overlaps with the first side section of the fourth winding unit, the first side section of the third winding unit overlaps with the second side section of the third winding unit, and the third side section of the fourth winding unit overlaps with the third side section of the fifth winding unit.
3. The stator of claim 2, wherein the first winding unit and the fourth winding unit are disposed opposite to each other on two sides of the hollow portion and together define a first combination, the second winding unit and the fifth winding unit are disposed opposite to each other on two sides of the hollow portion and together define a second combination, and the third winding unit and the sixth winding unit are disposed opposite to each other on two sides of the hollow portion and together define a third combination, wherein a first phase power is applied to the first combination, a second phase power is applied to the second combination, a third phase power is applied to the third combination, a phase difference between the first phase power and the second phase power is equal to 120 degrees, a phase difference between the second phase power and the third phase power is equal to 120 degrees, and a phase difference between the third phase power and the first phase power is equal to 120 degrees.
4. The stator of claim 1, wherein the plurality of winding units of the first winding group and the plurality of winding units of the second winding group are spiral coils and have a curvature.
5. The stator of claim 4, wherein the first winding group comprises three of the winding units, the second winding group comprises three of the winding units, and the arc is
6. The stator of claim 1, wherein the outer layer and the inner layer are concentric circles, and a radius of the outer layer is greater than a radius of the inner layer.
7. A winding assembly for being disposed inside a stator, the stator comprising a tube wall, the winding assembly comprising:
the first winding group comprises a plurality of winding units which are mutually arranged side by side and around the inner side of the pipe wall and jointly define an outer layer; and
the second winding group comprises a plurality of winding units, wherein the winding units are arranged side by side and around the inner side of the outer layer, and jointly define an inner layer, the projection of any winding unit of the inner layer on the pipe wall is partially overlapped with the projections of two adjacent winding units of the outer layer on the pipe wall, and the number of turns of the winding units of the first winding group is larger than that of the winding units of the second winding group.
8. The winding assembly of claim 7, wherein the first winding group comprises a first winding unit, a second winding unit and a third winding unit, the second winding group comprises a fourth winding unit, a fifth winding unit and a sixth winding unit, the first winding unit, the second winding unit, the third winding unit, the fourth winding unit, the fifth winding unit and the sixth winding unit all comprise a first side section, a second side section and an opening, the first side section and the second side section are respectively located at two sides of the opening, wherein the first side section of the first winding unit overlaps with the second side section of the fifth winding unit, the second side section of the first winding unit overlaps with the first side section of the sixth winding unit, the second side section of the second winding unit overlaps with the second side section of the sixth winding unit, the second side section of the second winding unit overlaps with the first side section of the fourth winding unit, the first side section of the third winding unit overlaps with the second side section of the fourth winding unit, and the third side section of the fourth winding unit overlaps with the third side section of the fourth winding unit.
9. The winding assembly of claim 7, wherein the plurality of winding units of the first winding group and the plurality of winding units of the second winding group are spiral coils and have a curvature.
10. The wire-wound assembly of claim 9, wherein the first wire-wound group comprises three of the wire-wound units, the second wire-wound group comprises three of the wire-wound units, and the arc is
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17/484,761 US11641142B2 (en) | 2020-10-16 | 2021-09-24 | Stator and winding assembly thereof |
| EP21199805.9A EP3985842B1 (en) | 2020-10-16 | 2021-09-29 | Stator and winding assembly thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202063092805P | 2020-10-16 | 2020-10-16 | |
| US63/092,805 | 2020-10-16 |
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| CN114374288A CN114374288A (en) | 2022-04-19 |
| CN114374288B true CN114374288B (en) | 2024-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110540314.0A Active CN114374288B (en) | 2020-10-16 | 2021-05-18 | Stator and winding assembly thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114374288B (en) |
| TW (1) | TWI799862B (en) |
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| US4197475A (en) * | 1977-12-05 | 1980-04-08 | Itsuki Ban | Direct current motor with double layer armature windings |
| JPH0956131A (en) * | 1995-08-11 | 1997-02-25 | Hitachi Koki Co Ltd | Coreless brushless motor |
| EP2466731A1 (en) * | 2010-12-15 | 2012-06-20 | Infranor Holding S.A. | Synchronous motor with permanent magnets |
| JP2013165594A (en) * | 2012-02-10 | 2013-08-22 | Seiko Epson Corp | Slot-less motor, manufacturing method of the same, electronic apparatus and robot |
| CN108880049A (en) * | 2018-08-15 | 2018-11-23 | 湖北西浦电机科技有限责任公司 | A kind of slotless high-speed permanent magnet motor of stator module and multilayer sine windings |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2469690B1 (en) * | 2010-12-23 | 2013-10-16 | Infranor Holding S.A. | Method for manufacturing a cylindrical winding for slotless electrical machine |
| TWI459685B (en) * | 2012-08-14 | 2014-11-01 | Ind Tech Res Inst | Method for winding control of pole changeable stator and electro-mechanical conversion apparatus using the same |
| CN106411012A (en) * | 2015-07-14 | 2017-02-15 | 上海鸣志电器股份有限公司 | Coreless winding of reducing distribution coefficient |
| CN109586456B (en) * | 2017-09-29 | 2021-06-18 | 比亚迪股份有限公司 | Motor, stator assembly and coil winding method thereof |
| CN110784047A (en) * | 2018-07-30 | 2020-02-11 | 福特全球技术公司 | Stator winding method and stator core winding |
| CN210041449U (en) * | 2019-06-05 | 2020-02-07 | 佛山市顺德区携创电机制造有限公司 | Cross-three-slot chain type winding method four-pole motor stator winding structure |
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2021
- 2021-05-18 CN CN202110540314.0A patent/CN114374288B/en active Active
- 2021-05-18 TW TW110117832A patent/TWI799862B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4197475A (en) * | 1977-12-05 | 1980-04-08 | Itsuki Ban | Direct current motor with double layer armature windings |
| JPH0956131A (en) * | 1995-08-11 | 1997-02-25 | Hitachi Koki Co Ltd | Coreless brushless motor |
| EP2466731A1 (en) * | 2010-12-15 | 2012-06-20 | Infranor Holding S.A. | Synchronous motor with permanent magnets |
| JP2013165594A (en) * | 2012-02-10 | 2013-08-22 | Seiko Epson Corp | Slot-less motor, manufacturing method of the same, electronic apparatus and robot |
| CN108880049A (en) * | 2018-08-15 | 2018-11-23 | 湖北西浦电机科技有限责任公司 | A kind of slotless high-speed permanent magnet motor of stator module and multilayer sine windings |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114374288A (en) | 2022-04-19 |
| TWI799862B (en) | 2023-04-21 |
| TW202218285A (en) | 2022-05-01 |
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