CN113270958B - Linear motor stator module, linear motor stator and linear motor - Google Patents
Linear motor stator module, linear motor stator and linear motor Download PDFInfo
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- CN113270958B CN113270958B CN202110646889.0A CN202110646889A CN113270958B CN 113270958 B CN113270958 B CN 113270958B CN 202110646889 A CN202110646889 A CN 202110646889A CN 113270958 B CN113270958 B CN 113270958B
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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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- 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
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Linear Motors (AREA)
Abstract
The invention relates to a linear motor stator module, a linear motor stator and a linear motor, wherein the linear motor stator module comprises a fixed support (1) and a three-phase coreless winding unit arranged on the fixed support (1), the three-phase coreless winding unit comprises an A-phase coil (2), a B-phase coil (3) and a C-phase coil (4), the three coils are partially overlapped and laid and installed along the length direction of the fixed support (1), the electric angle between two effective edges of any one coil is 180 degrees, the end part of each coil is pre-bent for a certain angle in the thickness direction of the fixed support (1), and the pre-bent angle of the end part of each coil is unequal so that the three coils do not interfere with each other in space. Compared with the prior art, the invention improves the thrust of the linear motor, optimizes the arrangement mode of the coils and avoids the mutual interference among the coils.
Description
Technical Field
The invention relates to the technical field of linear motors, in particular to a linear motor stator module, a linear motor stator and a linear motor.
Background
The linear drive can realize zero transmission, so that the application of the linear drive in the fields of magnetic suspension traffic, wheel-rail traffic, logistics transmission, precision machine tools and the like is more and more emphasized. The coreless permanent magnet linear motor has no cogging effect, small thrust fluctuation and high positioning precision, and is applied to fields with higher requirements. The winding of the coreless permanent magnet linear motor can adopt a distributed winding and a centralized winding. When concentrated windings are employed, single or double layer arrangements are typically employed. The double-layer arrangement increases the arrangement space of the coil, and simultaneously, the lower-layer coil is far away from the magnet, so that the magnetic field on the surface of the lower-layer coil is weakened. In some application environments, the concentrated winding coil is required to be arranged in a single layer. If the concentrated winding is arranged in a single layer, in order to avoid mutual interference between the phase and the coil end between phases, the 3-phase coil is often arranged in sequence (A +, A-, B +, B-, C +, C-). By adopting the arrangement mode, two sides of one coil are different in phase by 120 electrical angles and cannot be different in phase by 180 electrical angles, so that the thrust loss of the motor is caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a linear motor stator module, a linear motor stator and a linear motor.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a linear electric motor stator module, includes fixing support and installs the three-phase no iron core winding unit on fixing support, the three-phase no iron core winding unit include A looks coil, B looks coil and C looks coil, the installation is laid along fixing support length direction part overlap to three coil, the electrical angle between two effective limits in arbitrary one coil is 180, certain angle of every coil tip preflex on fixing support's thickness direction, and the angle that every coil tip preflex varies and makes three coil mutually noninterfere in space.
Preferably, the effective sides of the three coils in the three-phase coreless winding unit are arranged in sequence according to an a-phase positive pole, a C-phase negative pole, a B-phase positive pole, an a-phase negative pole, a C-phase positive pole and a B-phase negative pole.
Preferably, the bending angle of the coil end is-90 degrees.
Preferably, the phase A coil, the phase B coil and the phase C coil are all single-layer coils.
Preferably, the three-phase coreless winding units are arranged singly or in plurality, and when a plurality of three-phase coreless winding units are arranged, the three-phase coreless winding units are arranged in sequence along the length direction of the fixed support.
Preferably, the phase A coil, the phase B coil and the phase C coil are respectively formed by connecting one or more turns of coil monomers in series, and the coil monomers comprise square or round metal bodies.
Preferably, the fixed support is a non-metal support, and a slot for installing the coil is arranged on the fixed support.
A linear motor stator comprises one or more linear motor stator modules.
A linear motor comprises a linear electronic rotor and a linear motor stator.
Preferably, the magnet arrangement of the linear electronic rotor adopts a Halbach array arrangement or an N, S pole alternating arrangement.
Compared with the prior art, the invention has the following advantages:
(1) the two effective edges of the coils of the three-phase coreless winding in the stator module of the linear motor have an electrical angle difference of 180 degrees, compared with a mode of sequentially arranging single-layer concentrated windings, the thrust of the linear motor is improved, meanwhile, the bending angle of the end part of each coil is reasonably adjusted, the mutual interference among the coils is avoided, and the arrangement mode of the coils is optimized.
(2) The linear motor stator module is easy to implement in process in a mode of bending the end part of the stator coil by a certain angle, and the distance between different coil end parts can be adjusted according to different distance requirements.
(3) The linear motor stator adopts a modular design, the stator of one linear motor can be composed of one or more linear motor stator modules, the assembly is convenient, and the length of the linear motor stator can be flexibly adjusted.
Drawings
Fig. 1 is a schematic structural diagram of a stator module of a linear motor according to the present invention;
FIG. 2 is a schematic diagram of the distribution of the effective coil sides in a three-phase coreless winding unit according to the present invention;
FIG. 3 is a schematic view of the end of the coil of the present invention being bent;
FIG. 4 is a schematic structural diagram of a linear motor according to the present invention;
fig. 5 is a schematic view of an arrangement of magnets of the linear electronic mover of the present invention.
In the figure, 1 is a fixed support, 2 is an a-phase coil, 3 is a B-phase coil, 4 is a C-phase coil, and 5 is a linear electronic mover.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. Note that the following description of the embodiments is merely a substantial example, and the present invention is not intended to be limited to the application or the use thereof, and is not limited to the following embodiments.
Example 1
As shown in fig. 1, the present embodiment provides a linear motor stator module, including fixing support 1 and the three-phase coreless winding unit installed on fixing support 1, the three-phase coreless winding unit includes a phase coil 2, a phase coil 3 and a phase coil 4, the three coils are laid and installed along the partial overlapping of fixing support 1 length direction, the electrical angle between two effective edges in any one coil is 180 °, each coil end is pre-bent by a certain angle in the thickness direction of fixing support 1, and the pre-bent angle of each coil end is unequal so that the three coils do not interfere with each other in space. Fixing support 1 is nonmetal support, sets up the groove that is used for installing the coil on fixing support 1. The two effective edges of the coils of the three-phase coreless winding in the stator module of the linear motor have an electrical angle difference of 180 degrees, compared with a mode of sequentially arranging single-layer concentrated windings, the thrust of the linear motor is improved, meanwhile, the bending angle of the end part of each coil is reasonably adjusted, the mutual interference among the coils is avoided, and the arrangement mode of the coils is optimized.
The three-phase coreless winding units are arranged singly or in plurality, and when the three-phase coreless winding units are arranged in plurality, the three-phase coreless winding units are sequentially arranged along the length direction of the fixed support 1. As shown in fig. 1, the stator module of the linear motor in the present embodiment is provided with 3 three-phase coreless winding units.
As shown in fig. 2, the effective sides of the three coils in the three-phase coreless winding unit are arranged in order of an a-phase positive electrode, a C-phase negative electrode, a B-phase positive electrode, an a-phase negative electrode, a C-phase positive electrode, and a B-phase negative electrode. In FIG. 2, the A-phase positive electrode, C-phase negative electrode, B-phase positive electrode, A-phase negative electrode, C-phase positive electrode, and B-phase negative electrode are represented by A +, C-, B +, A-, C +, and B-respectively.
The bending angle of the coil end is-90 degrees (the included angle between the coil end and the horizontal axis), and the body bending angle can be determined according to the actual size and space requirement of the coil and the requirement of the insulation distance between coils of each phase. Each coil is led out of a current input end and a current output end and is connected with the adjacent coils with the same phase through metal wires. As shown in fig. 3 (a), which is a schematic bending diagram of-90 ° to 0 °, in the diagram, the bending angles of the 3 coil ends are all in the range of-90 ° to 0 °; as shown in fig. 3 (b), which is a schematic bending diagram of-90 ° to 90 °, in the diagram, the bending angles of the 3 coil ends are all in the range of-90 ° to 90 °; fig. 3 (c) shows a schematic bending diagram of 0 ° to 90 °, in which the bending angles of the 3 coil ends are all in the range of 0 ° to 90 °. Through the reasonable bending angle of each coil end, the mutual interference among the coils is avoided, and the arrangement mode of the coils is optimized. Meanwhile, the mode that the coil end is bent by a certain angle is easy to implement in process, and the distance between different coil ends can be adjusted according to different distance requirements.
The A-phase coil 2, the B-phase coil 3 and the C-phase coil 4 adopt concentrated winding coils and are single-layer coils. The phase A coil 2, the phase B coil 3 and the phase C coil 4 are respectively formed by connecting one or more turns of coil monomers in series, and the coil monomers comprise square or round metal bodies.
Example 2
The embodiment provides a linear motor stator, and linear motor stator includes one or more linear motor stator module, and when constituteing by a plurality of linear motor stator modules, the three-phase coil between two linear motor stator modules is connected through 3 metallic conductor respectively. The specific structure of the stator module of the linear motor is the same as that of embodiment 1, and the description of this embodiment is omitted.
Example 3
As shown in fig. 4, the present embodiment provides a linear motor, which includes a linear electronic mover 5, and further includes a linear motor stator, where the linear motor stator in embodiment 2 is adopted as the linear motor stator. The linear motor mover employs a permanent magnet (or other alternative magnet, such as a superconducting magnet). The linear electronic rotor 5 adopts a Halbach array arrangement mode or an N, S pole alternating arrangement mode. Fig. 5 shows (a) and (b) are schematic diagrams of arrangement of linear motor rotor magnets in a Halbach array arrangement mode, and (c) is a schematic diagram of arrangement of linear motor rotor magnets in an N, S-pole alternating arrangement mode.
The above embodiments are merely examples and do not limit the scope of the present invention. These embodiments may be implemented in other various manners, and various omissions, substitutions, and changes may be made without departing from the scope of the technical idea of the present invention.
Claims (8)
1. The linear motor stator module is characterized by comprising a fixed support (1) and a three-phase coreless winding unit arranged on the fixed support (1), wherein the three-phase coreless winding unit comprises an A-phase coil (2), a B-phase coil (3) and a C-phase coil (4), the three coils are partially overlapped, laid and installed along the length direction of the fixed support (1), the electrical angle between two effective edges of any one coil is 180 degrees, the end part of each coil is pre-bent by a certain angle in the thickness direction of the fixed support (1), and the pre-bent angles of the end parts of each coil are different, so that the three coils are not interfered with each other in space;
the effective edges of three coils in the three-phase coreless winding unit are sequentially arranged according to an A-phase positive electrode, a C-phase negative electrode, a B-phase positive electrode, an A-phase negative electrode, a C-phase positive electrode and a B-phase negative electrode;
the A-phase coil (2), the B-phase coil (3) and the C-phase coil (4) are all single-layer coils.
2. The stator module of a linear motor according to claim 1, wherein the bending angle of the coil end is-90 ° to 90 °.
3. A stator module of a linear motor according to claim 1, wherein the three-phase coreless winding unit is provided singly or in plurality, and when a plurality of the three-phase coreless winding units are provided, the plurality of three-phase coreless winding units are arranged in sequence along the length direction of the fixing support (1).
4. The linear motor stator module according to claim 1, wherein the phase A coil (2), the phase B coil (3) and the phase C coil (4) are respectively formed by connecting one or more turns of coil monomers in series, and the coil monomers comprise square or round metal bodies.
5. A stator module of a linear motor according to claim 1, characterized in that the fixing support (1) is a non-metal support, and the fixing support (1) is provided with slots for mounting coils.
6. A linear motor stator, characterized in that the linear motor stator comprises one or more linear motor stator modules according to any one of claims 1 to 5.
7. A linear motor comprising a linear electronic mover (5), characterized by further comprising a linear motor stator as claimed in claim 6.
8. A linear motor according to claim 7, characterized in that the magnet arrangement of the linear electron mover (5) is a Halbach array arrangement or an N, S pole alternating arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110646889.0A CN113270958B (en) | 2021-06-10 | 2021-06-10 | Linear motor stator module, linear motor stator and linear motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110646889.0A CN113270958B (en) | 2021-06-10 | 2021-06-10 | Linear motor stator module, linear motor stator and linear motor |
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| Publication Number | Publication Date |
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| CN113270958A CN113270958A (en) | 2021-08-17 |
| CN113270958B true CN113270958B (en) | 2022-09-20 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7359597B2 (en) * | 2019-08-29 | 2023-10-11 | 株式会社小松製作所 | Coils, stators, and motors |
| CN114228751A (en) * | 2021-12-23 | 2022-03-25 | 山西金山磁材有限公司 | Logistics transmission system driven by linear motor |
| CN114256995B (en) * | 2021-12-27 | 2023-07-28 | 同济大学 | Linear motor stator module of long stator magnetic levitation system |
| CN114844317B (en) * | 2022-07-05 | 2022-09-09 | 佛山德玛特智能装备科技有限公司 | Coil assembly, I-shaped rotor seat and linear motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100432244B1 (en) * | 2001-06-25 | 2004-05-22 | 삼익Lms주식회사 | Iron core type linear motor for high thrust force |
| US8115348B2 (en) * | 2009-05-22 | 2012-02-14 | Chieftek Precision Co., Ltd. | Unit coil, coil assembly and coreless type linear motor |
| CN105610261B (en) * | 2016-01-21 | 2018-09-04 | 中国科学院电工研究所 | A kind of modularization matrix form line inductance electromotor |
| CN106411013A (en) * | 2016-04-25 | 2017-02-15 | 深圳安格锐电气有限公司 | Coreless linear motor of embedded I-shaped coil |
| CN108616207A (en) * | 2018-05-09 | 2018-10-02 | 同济大学 | A kind of long-stator linear motor winding for rail traffic |
| CN111313576B (en) * | 2020-04-02 | 2021-07-06 | 南京航空航天大学 | Modularized permanent magnet motor |
| CN111769713A (en) * | 2020-07-21 | 2020-10-13 | 西安工业大学 | Coreless cylindrical permanent magnet synchronous linear motor |
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