CN111064300A - Winding structure of 24-slot 10-pole three-phase motor and electric vehicle - Google Patents
Winding structure of 24-slot 10-pole three-phase motor and electric vehicle Download PDFInfo
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- CN111064300A CN111064300A CN201910947995.5A CN201910947995A CN111064300A CN 111064300 A CN111064300 A CN 111064300A CN 201910947995 A CN201910947995 A CN 201910947995A CN 111064300 A CN111064300 A CN 111064300A
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- 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
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- 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
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The invention relates to a 24-slot 10-pole three-phase motor winding structure and an electric vehicle. The 24-slot 10-pole three-phase motor winding structure comprises 24 coils formed by winding A, B, C three-phase lines, wherein A, B, C three phases are respectively composed of 8 coils and 10 pole phases, the 24 coils adopt a centralized winding, four coils in the 8 coils are grouped in pairs to form two groups of consequent pole winding structures, the two coils of the consequent pole winding structures are connected in a head-to-tail mode, the two groups of consequent pole winding structures are symmetrically arranged in the positions in the same phase, and the other four coils are connected in a head-to-head mode or a tail-to-tail mode. The fractional slot and the centralized winding are adopted, the overhang part at the end part is shorter, the copper consumption and the copper wire consumption can be reduced, the utilization rate of copper materials is improved, the volume size of the motor is shortened, the weight of the motor is reduced, and the efficiency of the motor is improved. And the windings have less mutual interference, the fault-tolerant capability of the motor is enhanced, the overall performance of the motor is good, and the service life of the motor can be prolonged.
Description
Technical Field
The invention relates to a 24-slot 10-pole three-phase motor winding structure and an electric vehicle.
Background
At present, the new energy electric automobile effectively reduces the air pollution caused by automobile exhaust, has lower operation cost, is increasingly widely applied to places with higher environmental requirements, such as urban streets, tourist attractions and the like, and has core components of a motor which directly influences the performance of the whole electric automobile.
Chinese patent with publication number CN101944812B and publication date 2012.03.14 discloses a fractional-slot double-winding structure of a servo permanent magnet synchronous motor, the stator slot of the structure is 24 slots, the number of poles is 10, the number of slots of each pole and each phase is fraction 4/5, the fractional-slot winding is composed of two sets of three-phase symmetrical windings, the same windings are connected in series and led out by a star connection method, the first set of windings are double-lap windings with unequal turns, each phase has 8 turns, and the turn ratio is 1: the double-winding structure has 24 turns of 2 and 3 phases, the pitches are 2, the pitches of the second set of windings are 2, the turn ratio of the single-layer windings is 1, two turns of each phase and 6 turns of 3 phases are equal, the full rate of each slot in the stator is equal, the magnetic potential harmonic wave of the stator is reduced by 49.5 percent compared with that of the stator of the traditional winding, the ripple torque of the motor is small, the efficiency is high, the vibration is small, the output rated torque is improved by 5 percent, the temperature rise is reduced by 10 percent, and the output characteristic of speed regulation is greatly improved compared with that of the traditional winding.
However, most of the existing motors adopt integral slots and winding random-insertion wiring, the end part of the random-insertion winding is longer in overhanging part, and the overhanging end part is a non-working part, so that the utilization rate of copper materials is low, the windings are interfered with each other, the fault-tolerant capability of the motor is low, and the service life of the motor is short.
Disclosure of Invention
The invention aims to provide a 24-slot 10-pole three-phase motor winding structure, which solves the problem that the service life of most motors in the prior art is influenced by poor performance of the motors; the invention also aims to provide an electric vehicle.
In order to achieve the technical purpose, the technical scheme adopted by the winding structure of the 24-slot 10-pole three-phase motor is as follows: the 24-slot 10-pole three-phase motor winding structure comprises coil windings formed by winding A, B, C three-phase lines, wherein A, B, C three phases of the coil windings are respectively composed of 8 coils and 10 pole phases, the coil windings adopt centralized windings, four coils in the 8 coils are grouped in pairs to form two groups of consequent pole winding structures, the two coils of the consequent pole winding structures are connected in a head-to-tail mode, the two groups of consequent pole winding structures are symmetrically arranged in the same phase position, and the other four coils are connected in a head-to-head or tail-to-tail mode.
Furthermore, the 24-slot 10-pole three-phase motor winding structure further comprises a stator core, 24 winding slots are uniformly distributed on the stator core, and 2 winding slots are arranged between coils of each group of consequent pole winding structure at intervals.
Further, the sides of the two coils in each winding slot form a double layer winding structure, with 12 coils per layer.
Further, the span of the coil winding is 1-3.
Further, the coil winding is formed by winding flat copper wires.
The 24-slot 10-pole three-phase motor winding structure has the following beneficial effects: the 24-slot 10-pole three-phase motor winding structure is a fractional slot and a centralized winding, the overhang part at the end part is shorter, the copper consumption and the copper wire consumption can be reduced, the utilization rate of copper materials is improved, the volume size of a motor is shortened, the weight of the motor is reduced, and the efficiency of the motor is improved. And the windings have less mutual interference, the fault-tolerant capability of the motor is enhanced, the overall performance of the motor is good, and the service life of the motor can be prolonged.
The technical scheme adopted by the electric vehicle is as follows: the electric automobile comprises a 24-slot 10-pole three-phase motor winding structure, wherein the 24-slot 10-pole three-phase motor winding structure comprises coil windings formed by winding A, B, C three-phase lines, wherein A, B, C three phases of the coil windings respectively comprise 8 coils and 10 pole phases, the coil windings adopt centralized windings, four coils in the 8 coils are pairwise grouped to form two groups of consequent pole winding structures, the wiring modes of the two coils of the consequent pole winding structures are in end-to-end connection, the two groups of consequent pole winding structures are symmetrically arranged in the same phase, and the wiring modes of the other four coils are in end-to-end connection or tail-to-end connection.
Furthermore, the 24-slot 10-pole three-phase motor winding structure further comprises a stator core, 24 winding slots are uniformly distributed on the stator core, and 2 winding slots are arranged between coils of each group of consequent pole winding structure at intervals.
Further, the sides of the two coils in each winding slot form a double layer winding structure, with 12 coils per layer.
Further, the span of the coil winding is 1-3.
Further, the coil winding is formed by winding flat copper wires.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a wiring diagram of example 1 of a 24 slot 10 pole motor winding structure of the present invention;
FIG. 2 is a schematic diagram of the A-phase winding of FIG. 1;
FIG. 3 is a schematic diagram of the structure of the phase B winding of FIG. 1;
FIG. 4 is a schematic diagram of the structure of the C-phase winding of FIG. 1;
fig. 5 is a wiring diagram of example 1 of a 24 slot 10 pole motor winding structure of the present invention.
Detailed Description
The present invention is described in detail below with reference to specific embodiments and drawings, and it should be noted that the features of the embodiments and examples of the present invention may be combined with each other without conflict, and the scope of the present invention is not limited thereto.
In embodiment 1 of the 24-slot 10-pole three-phase motor winding structure of the present invention, as shown in fig. 1 to 5 (A, B, C three phases are distinguished according to different line thicknesses in fig. 1, and X, Y, Z respectively represents A, B, C three-phase lead-out wires), the 24-slot 10-pole three-phase motor winding structure includes a coil winding formed by winding A, B, C three-phase wires, wherein A, B, C three phases of the coil winding are respectively composed of 8 coils and 10 pole phases, the coil winding adopts a centralized winding, four coils of the 8 coils are grouped in pairs to form two sets of consequent pole winding structures, the two coils of the consequent pole winding structures are connected end to end, the two sets of consequent pole winding structures are symmetrically arranged in the same phase, and the other four coils are connected end to end or tail to end.
In this embodiment, the 24-slot 10-pole three-phase motor winding structure further includes a stator core, 24 winding slots are radially and uniformly distributed on the stator core, and two winding slots are spaced between coils of each group of consequent pole winding structure. The 24 coil windings are arranged in the following mode: the wiring modes of the 2 nd coil and the 3 rd coil, the 6 th coil and the 7 th coil of each phase are all head-to-tail connected, two winding grooves are respectively arranged between the 2 nd coil and the 3 rd coil, and between the 6 th coil and the 7 th coil of each phase at intervals, and the wiring modes of the other coils are in head-to-head connection or tail-to-tail connection, the winding mode enables each phase to form 10 pole phases including 8 salient poles and 2 consequent poles, and the consequent poles are generated by changing the polarity induction through changing the wiring mode by adjacent in-phase windings.
In the embodiment, the coil winding is formed by winding flat copper wires, so that integrated processing can be realized, the processing time is saved, and the production cost is reduced; the span of the coil winding is 1-3, a double-layer winding structure is formed by the edges of the two coils in each winding slot, each layer is provided with 12 coils, the double-layer winding structure is adopted, the space of the stator slot is saved, the duty ratio of a copper wire is improved, the size of the motor is reduced to a greater extent, and the effective specific power density of the motor is improved.
In this embodiment, according to the fractional slot design features: q = Z/2mp = N/d = b + c/d (q: number of pole groups; Z: number of stator slots; m: number of phases; P: number of poles; b: integer; N: integer; c/d: irreducible fraction of truth), and in order to effectively suppress the generation of 3, 5, 7 … higher harmonics and to improve the waveform of the back electromotive force and magnetomotive force, the back electromotive force waveform is made closer to a sine wave, so that a y < τ short pitch structure (y: pitch, τ: pole pitch, τ = Z/2P) is selected, τ =24/2x5=2.4, and the pitch y =2.
The 24-slot 10-pole three-phase motor winding structure is a fractional slot and a centralized winding, the overhang part at the end part is shorter, the copper consumption and the copper wire consumption can be reduced, the utilization rate of copper materials is improved, the volume size of the motor is shortened, the weight of the motor is reduced, and the efficiency of the motor is improved. And the windings have less mutual interference, the fault-tolerant capability of the motor is enhanced, the overall performance of the motor is good, and the service life of the motor can be prolonged.
The difference between the embodiment 2 of the winding structure of the 24-slot 10-pole three-phase motor and the embodiment 1 is that the arrangement mode of 24 coil windings is as follows: the wiring mode of the 1 st coil and the 2 nd coil, and the 7 th coil and the 8 th coil of each phase is head-to-tail connection, and two winding slots are respectively arranged between the 1 st coil and the 2 nd coil, and between the 7 th coil and the 8 th coil of each phase.
The difference between the embodiment 3 of the winding structure of the 24-slot 10-pole three-phase motor and the embodiment 1 is that the coil winding can be wound by adopting an enameled wire.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a 24 groove 10 utmost point three-phase motor winding structure, includes the coil winding that A, B, C three-phase line coiling formed, the A, B, C three-phase of coil winding comprises 8 coils and 10 utmost point looks respectively, its characterized in that: the coil winding adopts a centralized winding, four coils in the 8 coils are grouped in pairs to form two groups of consequent pole winding structures, the two coils of the consequent pole winding structures are connected end to end, the two groups of consequent pole winding structures are symmetrically arranged at the positions in the same phase, and the other four coils are connected end to end or tail to end.
2. A 24-slot 10-pole three-phase motor winding structure according to claim 1, wherein: the 24-slot 10-pole three-phase motor winding structure further comprises a stator core, wherein 24 winding slots are uniformly distributed in the stator core, and 2 winding slots are arranged between coils of each group of consequent pole winding structure at intervals.
3. A 24-slot 10-pole three-phase motor winding structure according to claim 2, wherein: the sides of each winding slot around two coils form a double layer winding structure with 12 coils per layer.
4. A 24-slot 10-pole three-phase motor winding structure according to claim 1, 2 or 3, characterized in that: the span of the coil winding is 1-3.
5. A 24-slot 10-pole three-phase motor winding structure according to claim 1, 2 or 3, characterized in that: the coil winding is formed by winding flat copper wires.
6. The utility model provides an electric vehicle, includes 24 grooves 10 utmost point three-phase motor winding structures, 24 grooves 10 utmost point three-phase motor winding structures include the coil winding that A, B, C three-phase line coiling formed, coil winding's A, B, C three-phase comprises 8 coils and 10 utmost point looks respectively, its characterized in that: the coil winding adopts a centralized winding, four coils in the 8 coils are grouped in pairs to form two groups of consequent pole winding structures, the two coils of the consequent pole winding structures are connected end to end, the two groups of consequent pole winding structures are symmetrically arranged at the positions in the same phase, and the other four coils are connected end to end or tail to end.
7. The electric vehicle according to claim 6, characterized in that: the 24-slot 10-pole three-phase motor winding structure further comprises a stator core, wherein 24 winding slots are uniformly distributed in the stator core, and 2 winding slots are arranged between coils of each group of consequent pole winding structure at intervals.
8. The electric vehicle according to claim 7, characterized in that: the sides of each winding slot around two coils form a double layer winding structure with 12 coils per layer.
9. The electric vehicle according to claim 6, 7 or 8, characterized in that: the span of the coil winding is 1-3.
10. The electric vehicle according to claim 6, 7 or 8, characterized in that: the coil winding is formed by winding flat copper wires.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371774 | 2019-05-06 | ||
| CN2019103717748 | 2019-05-06 |
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| Publication Number | Publication Date |
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| CN111064300A true CN111064300A (en) | 2020-04-24 |
| CN111064300B CN111064300B (en) | 2025-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910947995.5A Active CN111064300B (en) | 2019-05-06 | 2019-10-08 | 24-slot 10-pole three-phase motor winding structure and electric vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112865378A (en) * | 2021-01-13 | 2021-05-28 | 珠海格力电器股份有限公司 | Three-phase motor winding structure and motor |
| CN113629967A (en) * | 2021-08-02 | 2021-11-09 | 宁波普尔机电制造有限公司 | Direct-current brushless inner rotor motor with Halbach array |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014020755A1 (en) * | 2012-08-03 | 2014-02-06 | 三菱電機株式会社 | Rotating electrical machine |
| CN103701286A (en) * | 2014-01-10 | 2014-04-02 | 史立伟 | High-reliability four-phase alternating current starting motor |
| CN104393699A (en) * | 2014-12-16 | 2015-03-04 | 东南大学 | Winding unitized parallel winding structure of alternating current motor stator winding |
| CN211579730U (en) * | 2019-05-06 | 2020-09-25 | 三门峡速达交通节能科技股份有限公司 | 24-slot 10-pole three-phase motor winding structure and electric vehicle |
-
2019
- 2019-10-08 CN CN201910947995.5A patent/CN111064300B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014020755A1 (en) * | 2012-08-03 | 2014-02-06 | 三菱電機株式会社 | Rotating electrical machine |
| CN103701286A (en) * | 2014-01-10 | 2014-04-02 | 史立伟 | High-reliability four-phase alternating current starting motor |
| CN104393699A (en) * | 2014-12-16 | 2015-03-04 | 东南大学 | Winding unitized parallel winding structure of alternating current motor stator winding |
| CN211579730U (en) * | 2019-05-06 | 2020-09-25 | 三门峡速达交通节能科技股份有限公司 | 24-slot 10-pole three-phase motor winding structure and electric vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112865378A (en) * | 2021-01-13 | 2021-05-28 | 珠海格力电器股份有限公司 | Three-phase motor winding structure and motor |
| CN113629967A (en) * | 2021-08-02 | 2021-11-09 | 宁波普尔机电制造有限公司 | Direct-current brushless inner rotor motor with Halbach array |
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| Publication number | Publication date |
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| CN111064300B (en) | 2025-06-03 |
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