CN114337000A - A novel stator structure for improving motor efficiency - Google Patents
A novel stator structure for improving motor efficiency Download PDFInfo
- Publication number
- CN114337000A CN114337000A CN202111292483.3A CN202111292483A CN114337000A CN 114337000 A CN114337000 A CN 114337000A CN 202111292483 A CN202111292483 A CN 202111292483A CN 114337000 A CN114337000 A CN 114337000A
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- China
- Prior art keywords
- iron core
- core column
- column
- stator
- motor
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims abstract description 8
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 239000000956 alloy Substances 0.000 abstract description 5
- 230000004907 flux Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention discloses a novel stator structure for improving the efficiency of a motor, which comprises a hollow stator core formed by winding an amorphous alloy strip, a first iron core column and a second iron core column, wherein the first iron core column and the second iron core column are respectively inserted from the upper part and the lower part of the stator core, and the lower end of the first iron core column is bonded with the upper end of the second iron core column; the first iron core column and the second iron core column are both columns made of soft magnetic composite materials. Aiming at the condition that the existing motor stator made of the wound amorphous alloy material cannot avoid a hollow structure, the invention inserts the core limb made of soft magnetic composite material on the original stator tooth structure, and the core limb is formed by bonding and splicing an upper part and a lower part.
Description
Technical Field
The invention relates to a motor stator, in particular to a novel stator structure for improving the efficiency of a motor.
Background
Compared with soft magnetic composite materials and silicon steel sheets, the amorphous alloy material used as the stator teeth of the YASA motor has the advantages of low iron loss and low density, and the processing technology is simple and is the advantage of a winding type stator tooth, but because the amorphous alloy material has the physical characteristics of hardness, brittleness and thinness, the wound stator tooth can not avoid forming a hollow structure, the magnetic flux of an iron core is reduced, the volume of the motor needs to be increased, and therefore reasonable magnetic load is achieved.
The novel stator structure aims at simplifying the YASA motor stator process, reducing stator iron loss and permanent magnet eddy current loss and providing the novel stator structure.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a novel stator structure for improving the efficiency of a motor.
In order to achieve the purpose, the invention provides the following technical scheme:
a novel stator structure for improving the efficiency of a motor comprises a hollow stator core formed by winding an amorphous alloy strip, a first iron core column and a second iron core column, wherein the first iron core column and the second iron core column are respectively inserted from the upper part and the lower part of the stator core, and the lower end of the first iron core column is bonded with the upper end of the second iron core column; the first iron core column and the second iron core column are both columns made of soft magnetic composite materials.
As a preferable configuration of the present invention, a clamping column is disposed at a lower end of the first core limb, a clamping groove corresponding to the clamping column is disposed at an upper end of the second core limb, and the clamping column is inserted into the clamping groove.
As a preferable configuration of the present invention, the stator core is formed by winding an amorphous alloy strip, a linear insertion channel having a triangular cross section is formed in a hollow portion of the stator core, and cross sections of the first core leg and the second core leg are fitted to the linear insertion channel.
The invention also provides a motor which is provided with the novel stator structure for improving the efficiency of the motor.
The invention has the following beneficial effects:
aiming at the condition that the existing motor stator made of wound amorphous alloy materials cannot avoid a hollow structure, the novel stator structure is characterized in that an iron core column made of soft magnetic composite materials is inserted into the original stator tooth structure, the iron core column is formed by bonding and splicing an upper part and a lower part, the structure can improve the magnetic flux of an iron core, improve the efficiency and the power density of the motor, and reduce the volume of the motor under the same power level.
Drawings
Fig. 1 is a structural diagram of a novel stator for improving the efficiency of a motor according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1, a novel stator structure for improving motor efficiency includes a hollow stator core 1 formed by winding an amorphous alloy strip, and a first core limb 2 and a second core limb 3 inserted from the upper portion and the lower portion of the stator core 1, respectively, and the lower end of the first core limb 2 is bonded to the upper end of the second core limb 3; the first iron core column 2 and the second iron core column 3 are both cylinders made of soft magnetic composite materials.
As a preferable configuration of the embodiment of the present invention, further, a clamping column 4 is disposed at a lower end of the first core limb 2, a clamping slot 5 corresponding to the clamping column 4 is disposed at an upper end of the second core limb 3, and the clamping column 4 is inserted into the clamping slot 5.
As a preferable configuration of the embodiment of the present invention, the stator core 1 is formed by winding an amorphous alloy strip, a hollow portion of the stator core forms a linear insertion channel 6 having a triangular cross section, and cross sections of the first core leg 2 and the second core leg 3 are matched with the linear insertion channel 6.
By adopting the technical scheme, the core column made of the soft magnetic composite material is inserted into the original stator tooth structure, the core column is formed by bonding and splicing an upper part and a lower part, the structure can improve the magnetic flux of the core, improve the efficiency and the power density of the motor, and reduce the volume of the motor under the same power level.
Meanwhile, the upper end of the first iron core column 2 and the lower end of the second iron core column 3 are respectively provided with a bottom plate made of soft magnetic composite materials, so that the soft magnetic composite materials are designed into a half-opening structure at the top of the stator teeth, and the eddy current loss of the permanent magnet caused by air gap reluctance change is reduced.
Example 2
The present invention also provides a motor having the novel stator structure for improving the efficiency of the motor provided in embodiment 1.
Aiming at the condition that the existing motor stator made of wound amorphous alloy materials cannot avoid a hollow structure, the novel stator structure is characterized in that an iron core column made of soft magnetic composite materials is inserted into the original stator tooth structure, the iron core column is formed by bonding and splicing an upper part and a lower part, the structure can improve the magnetic flux of an iron core, improve the efficiency and the power density of the motor, and reduce the volume of the motor under the same power level.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Claims (4)
1. A novel stator structure for improving the efficiency of a motor is characterized by comprising a hollow stator core formed by winding an amorphous alloy strip, a first iron core column and a second iron core column, wherein the first iron core column and the second iron core column are respectively inserted from the upper part and the lower part of the stator core, and the lower end of the first iron core column is bonded with the upper end of the second iron core column; the first iron core column and the second iron core column are both columns made of soft magnetic composite materials.
2. The novel stator structure for improving the efficiency of a motor according to claim 1, wherein a clamping column is arranged at the lower end of the first core limb, a clamping groove corresponding to the clamping column is arranged at the upper end of the second core limb, and the clamping column is inserted into the clamping groove.
3. The novel stator structure for improving motor efficiency as claimed in claim 1, wherein the stator core is formed by winding an amorphous alloy strip, and the hollow portion thereof forms a linear insertion channel having a triangular cross section, and the cross sections of the first and second legs are matched with the linear insertion channel.
4. An electric machine having a novel stator structure for improving efficiency of the electric machine according to claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292483.3A CN114337000A (en) | 2021-11-03 | 2021-11-03 | A novel stator structure for improving motor efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292483.3A CN114337000A (en) | 2021-11-03 | 2021-11-03 | A novel stator structure for improving motor efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114337000A true CN114337000A (en) | 2022-04-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111292483.3A Pending CN114337000A (en) | 2021-11-03 | 2021-11-03 | A novel stator structure for improving motor efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114337000A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011109809A (en) * | 2009-11-17 | 2011-06-02 | Hitachi Metals Ltd | Core, axial gap motor, and method of manufacturing same core |
| CN102545415A (en) * | 2012-02-15 | 2012-07-04 | 中国科学院电工研究所 | Radial magnetic field motor with amorphous alloy |
| CN202957727U (en) * | 2012-10-17 | 2013-05-29 | 株式会社日立产机系统 | Axial type permanent magnet synchronous motor |
| CN106385121A (en) * | 2016-10-21 | 2017-02-08 | 沈阳工业大学 | Low loss combined radial flux amorphous alloy motor |
| CN207968096U (en) * | 2018-04-12 | 2018-10-12 | 核心驱动科技（金华）有限公司 | Stator and motor |
| CN109904948A (en) * | 2018-07-17 | 2019-06-18 | 苏州保邦电气有限公司 | Winding water cooling microlight-type axial-flux electric machine |
| CN112152340A (en) * | 2020-08-19 | 2020-12-29 | 沈阳工业大学 | High-heat-dissipation permanent magnet motor stator with axial-flux axial fixation of yoke-free segmented armature |
| CN112152409A (en) * | 2020-08-19 | 2020-12-29 | 沈阳工业大学 | Yoke-free stator/rotor core axial flux permanent magnet motor |
| CN213185663U (en) * | 2020-06-24 | 2021-05-11 | 河北工业大学 | Axial synchronous reluctance motor |
-
2021
- 2021-11-03 CN CN202111292483.3A patent/CN114337000A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011109809A (en) * | 2009-11-17 | 2011-06-02 | Hitachi Metals Ltd | Core, axial gap motor, and method of manufacturing same core |
| CN102545415A (en) * | 2012-02-15 | 2012-07-04 | 中国科学院电工研究所 | Radial magnetic field motor with amorphous alloy |
| CN202957727U (en) * | 2012-10-17 | 2013-05-29 | 株式会社日立产机系统 | Axial type permanent magnet synchronous motor |
| CN106385121A (en) * | 2016-10-21 | 2017-02-08 | 沈阳工业大学 | Low loss combined radial flux amorphous alloy motor |
| CN207968096U (en) * | 2018-04-12 | 2018-10-12 | 核心驱动科技（金华）有限公司 | Stator and motor |
| CN109904948A (en) * | 2018-07-17 | 2019-06-18 | 苏州保邦电气有限公司 | Winding water cooling microlight-type axial-flux electric machine |
| CN213185663U (en) * | 2020-06-24 | 2021-05-11 | 河北工业大学 | Axial synchronous reluctance motor |
| CN112152340A (en) * | 2020-08-19 | 2020-12-29 | 沈阳工业大学 | High-heat-dissipation permanent magnet motor stator with axial-flux axial fixation of yoke-free segmented armature |
| CN112152409A (en) * | 2020-08-19 | 2020-12-29 | 沈阳工业大学 | Yoke-free stator/rotor core axial flux permanent magnet motor |
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Application publication date: 20220412 |