CN107404173B - Interlayer insulating paper and multi-layer winding type motor with same - Google Patents
Interlayer insulating paper and multi-layer winding type motor with same Download PDFInfo
- Publication number
- CN107404173B CN107404173B CN201710798263.5A CN201710798263A CN107404173B CN 107404173 B CN107404173 B CN 107404173B CN 201710798263 A CN201710798263 A CN 201710798263A CN 107404173 B CN107404173 B CN 107404173B
- Authority
- CN
- China
- Prior art keywords
- insulating paper
- coil
- interlayer insulating
- layer
- book ear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000010410 layer Substances 0.000 title claims abstract description 42
- 238000004804 winding Methods 0.000 title claims abstract description 34
- 239000011229 interlayer Substances 0.000 title claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 11
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
-
- 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
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- 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)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention discloses an interlayer insulating paper, which comprises: bottom, book ear, bottom and book ear are integrated into one piece structure, are provided with the broken line between bottom and the book ear, book ear symmetry sets up in the bottom both sides, the one end of bottom is provided with the closed angle, and the other end of bottom sets up to straight line or convex, the length L1 of book ear outside limit and the proportion scope of the length L2 of broken line are L1: the invention also discloses a motor with a plurality of layers of windings of the interlayer insulating paper, which mainly comprises: the stator iron core, the rotor and the coil, wherein the number of layers of the coil is set to be a plurality of layers (the number of layers is more than or equal to 2), and insulating paper is arranged between the layers and the coils. By the mode, the motor winding device can solve the problems of poor coil insulation and motor burning loss when a plurality of layers of winding motors perform winding operation.
Description
Technical Field
The invention relates to the field of multi-layer winding motors, in particular to interlayer insulating paper and a multi-layer winding motor with the same.
Background
At present, when a concentrated winding mode is adopted in the development of a multi-layer winding motor, a thicker copper wire is needed to improve the performance of the motor, but when the thicker copper wire is used, the thicker copper wire is not good in winding, the operation performance is poor, and a certain width is needed for a notch. If the notch opening is large, the shape and the magnetic number distribution density of the tooth part and the notch are affected, so that the winding efficiency is low and the noise is increased. In addition, the current product is formed, the rough copper wire is changed or the width of the notch is changed, the notch is required to be redesigned, the die is opened again, the implementation cost is increased, and the implementation is difficult.
Therefore, in order to ensure the performance of the motor and facilitate winding, a mode of winding a plurality of layers of fine copper wires (namely, a multi-layer copper wire coil) is adopted to replace the traditional thick copper wire-winding mode, and design and development are carried out. By adopting a multi-layer winding mode, potential difference exists between layers and layer coils, after the power is on, under the influence of electromagnetic difference, the electromagnetic vibration between the layers generates micro displacement, friction occurs, the insulating layers of the coils are damaged, even the condition that a motor burns occurs, and the burning part is frequently found at the contact part of the upper layer coil and the lower layer coil.
Disclosure of Invention
The invention mainly solves the technical problems of poor coil insulation and motor burning when a thin copper wire is used for replacing a thick copper wire for winding of a multi-layer winding motor.
In order to solve the technical problems, the invention adopts a technical scheme that: provided is an interlayer insulating paper comprising: bottom, book ear, bottom and book ear are integrated into one piece structure, are provided with the broken line between bottom and the book ear, book ear symmetry sets up in the bottom both sides, the one end of bottom is provided with the closed angle, and the other end of bottom sets up to straight line or convex, the length L1 of book ear outside limit and the proportion scope of the length L2 of broken line are L1: and L2 = 1:3-2:3, wherein the two ends of the folding lug part are respectively provided with a chamfer, and the included angle alpha between the chamfer and the folding line is 30-60 degrees.
Preferably, the chamfer angles at the two ends of the lug part are set to be straight chamfer angles.
Preferably, the ratio of the length L1 of the outer side edge of the folding ear to the length L2 of the folding line is L1: l2=1:3.
Preferably, the included angle alpha between the chamfer and the fold line is 30 degrees.
Preferably, the tip of the sharp corner at one end of the bottom is arranged to be a right angle or a circular arc.
Preferably, the thickness of the insulating paper ranges from 0.125mm to 0.35mm.
In order to solve the technical problems, the invention adopts another technical scheme that: provided is a multi-layer winding motor having the interlayer insulating paper, mainly comprising: stator core, rotor, coil, the rotor sets up inside stator core, a plurality of iron core grooves have evenly been seted up along circumferencial direction to stator core, the notch has been seted up to the inboard in iron core groove, around being equipped with the coil between the iron core groove, the number of piles N of coil sets up to N and is greater than or equal to 2, is provided with insulating paper between layer and layer coil.
Preferably, the bottom of the insulating paper is set to be planar or arc-shaped, and the shape of the bottom of the insulating paper is matched with the shape of the iron core groove.
Preferably, the coil is wound between two adjacent core slots.
Preferably, the sharp corner end of the insulating paper leaks out of the coil.
The beneficial effects of the invention are as follows: 1. the concentrated winding motor with the plurality of layers of windings is successfully developed, so that the concentrated winding motor with the plurality of layers of windings is impossible to realize (the concentrated winding motor cannot be concentrated due to thick wires, and the concentrated winding can be successfully realized by using thin wires at present; 2, the insulating reliability and the safety of products are improved through the multi-winding of thin copper wires and the interlayer insulating paper technology; 3, the operation performance is improved through the structural design of the interlayer insulating paper, so that the mass production is possible.
Drawings
FIG. 1 is a schematic diagram of an interlayer insulating paper and a multi-layer winding motor with the same according to a preferred embodiment of the present invention;
fig. 2 is an expanded schematic view of the interlayer insulating paper shown;
FIG. 3 is a schematic illustration of the fold of FIG. 2 shown;
the components in the drawings are marked as follows: 1. stator core, 2, insulating paper, 3, outer coil, 4, inner coil, 5, core slot, 51, notch, 21, bottom, 22, folding ear, 23, closed angle, 24, straight chamfer, 25, fold line.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Referring to fig. 2 and 3, an embodiment of the present invention includes:
an interlayer insulating paper comprising: bottom 21, book ear portion 22, bottom 21 and book ear portion 22 are integrated into one piece structure, are provided with broken line 25 between bottom 21 and the book ear portion 22, book ear portion 22 symmetry sets up in bottom 21 both sides, the one end of bottom 21 is provided with closed angle 23, and the closed angle 23 that shows sets up to the right angle, and the other end of bottom 21 sets up to the straight line, the length L1 of book ear portion 22 outside limit and the length L2's of broken line 25 proportion be L1: l2=1:3, the both ends of book ear portion 22 are provided with straight chamfer 24 respectively, the contained angle α between straight chamfer 24 and the broken line 25 is 30, the thickness of insulating paper 2 is 0.3mm.
In the invention, the two ends of the lug part 22 are respectively provided with the straight chamfer 24, so that the coil is convenient to wind, is not easy to shift, and prevents the coil from loosening, thereby avoiding abrasion caused by slight vibration of the motor in the running process due to the loosening of the coil. And the width d of the lug part 22 exceeds 2mm of the copper wire coil, namely after the winding of the outer layer coil is finished, the lug part 22 is exposed outside by 2mm, so that coil deflection is avoided, and the insulation effect of the insulation paper is prevented from being influenced by slight vibration when the motor works. The winding operation performance is improved.
In the invention, one end of the bottom of the insulating paper 2 is provided with the sharp corner 23, and after the winding of the coil is completed, the sharp corner 23 can be exposed, so that the purpose of preventing the insulating paper from being leaked between the inner coil and the outer coil is to play a role in leakage prevention.
In the embodiment of the present invention, the ratio of the length L1 of the outer side edge of the tab portion 22 to the length L2 of the fold line 25 is L1: l2=1:3, straight chamfer 24 is provided at both outer ends of the lug 22, and the middle of the outer side is straight line type parallel to the fold line. Because the middle part of the coil is easy to loose, the two ends of the outer side of the lug part 22 are provided with straight chamfer angles 24, so that the coil is convenient to wind, and the middle part of the coil can be ensured to be tight and not easy to wear.
As shown in fig. 1, the embodiment of the invention also discloses a multi-layer winding motor with the interlayer insulating paper, which mainly comprises: stator core 1, rotor (not shown in the figure), coil, the rotor sets up inside stator core 1, stator core 1 evenly has seted up a plurality of iron core grooves 5 along the circumferencial direction, notch 51 has been seted up to the inboard in iron core groove 5, around being equipped with the coil between the iron core groove 5, the number of piles of coil sets up to two-layer, is provided with insulating paper 2 between layer and layer coil, and the shape and the iron core groove 5 shape phase-match of insulating paper 2 bottom can increase the coiling number of turns of iron core inslot coil, has improved motor performance as far as possible.
The winding process of the invention is that firstly, the inner layer coil 4 is wound between the adjacent iron core grooves 5, after the inner layer coil 4 is wound, the insulating paper 2 is placed on the outer side of the inner layer coil 4, and then the outer layer coil 3 is wound outside the insulating paper folding lug part 22. And make the closed angle 23 of insulating paper 2 bottom one end spill outside the insulating paper, be convenient for inspect insulating paper 2 whether leak put, improved the wholeness ability of motor.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (10)
1. An interlayer insulating paper, characterized by comprising: bottom, book ear, bottom and book ear are integrated into one piece structure, are provided with the broken line between bottom and the book ear, book ear symmetry sets up in the bottom both sides, the one end of bottom is provided with the closed angle, and the other end of bottom sets up to straight line or convex, the length L1 of book ear outside limit and the proportion scope of the length L2 of broken line are L1: and L2 = 1:3-2:3, wherein the two ends of the folding lug part are respectively provided with a chamfer, and the included angle alpha between the chamfer and the folding line is 30-60 degrees.
2. An interlayer insulating paper according to claim 1, wherein the chamfers at both ends of the folded-over portion are provided as straight chamfers.
3. The interlayer insulating paper according to claim 1, wherein the ratio of the length L1 of the outer side edge of the folded ear portion to the length L2 of the folded line is L1: l2=1:3.
4. An interlayer insulating paper according to claim 1, wherein the angle α between said chamfer and the fold line is 30 °.
5. An interlayer insulating paper according to claim 1, wherein the tip of the sharp corner at one end of the bottom is provided in a right angle or a circular arc shape.
6. An interlayer insulating paper according to claim 1, wherein the thickness of said insulating paper is in the range of 0.125mm to 0.35mm.
7. A plural-layer winding motor having the interlayer insulating paper as claimed in any one of claims 1 to 6, characterized by comprising mainly: stator core, rotor, coil, the rotor sets up inside stator core, a plurality of iron core grooves have evenly been seted up along circumferencial direction to stator core, the notch has been seted up to the inboard in iron core groove, around being equipped with the coil between the iron core groove, the number of piles N of coil sets up to N and is greater than or equal to 2, is provided with insulating paper between layer and layer coil.
8. The multi-layer winding motor of claim 7, wherein the bottom of the insulating paper is formed in a plane shape or an arc shape, and the shape of the bottom of the insulating paper is matched with the shape of the core slot.
9. The multi-layer wound motor of claim 7, wherein the coil is wound between two adjacent core slots.
10. A multi-layer wound motor as claimed in claim 7, wherein the pointed ends of the insulating paper leak out of the coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710798263.5A CN107404173B (en) | 2017-09-07 | 2017-09-07 | Interlayer insulating paper and multi-layer winding type motor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710798263.5A CN107404173B (en) | 2017-09-07 | 2017-09-07 | Interlayer insulating paper and multi-layer winding type motor with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107404173A CN107404173A (en) | 2017-11-28 |
| CN107404173B true CN107404173B (en) | 2023-11-17 |
Family
ID=60398031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710798263.5A Active CN107404173B (en) | 2017-09-07 | 2017-09-07 | Interlayer insulating paper and multi-layer winding type motor with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107404173B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112165192B (en) * | 2020-09-30 | 2021-07-30 | 安徽美芝精密制造有限公司 | Motor structure and compressor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101394114A (en) * | 2007-09-18 | 2009-03-25 | 乐金电子(天津)电器有限公司 | Insulation fin construction of brushless DC motor stator winding |
| CN202495821U (en) * | 2012-01-13 | 2012-10-17 | 松下·万宝(广州)压缩机有限公司 | Motor insulation paper and motor |
| CN207251340U (en) * | 2017-09-07 | 2018-04-17 | 苏州爱知科技有限公司 | A kind of layer insulation paper and there is its plural layer winding type motor |
-
2017
- 2017-09-07 CN CN201710798263.5A patent/CN107404173B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101394114A (en) * | 2007-09-18 | 2009-03-25 | 乐金电子(天津)电器有限公司 | Insulation fin construction of brushless DC motor stator winding |
| CN202495821U (en) * | 2012-01-13 | 2012-10-17 | 松下·万宝(广州)压缩机有限公司 | Motor insulation paper and motor |
| CN207251340U (en) * | 2017-09-07 | 2018-04-17 | 苏州爱知科技有限公司 | A kind of layer insulation paper and there is its plural layer winding type motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107404173A (en) | 2017-11-28 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240423 Address after: No. 1228, Cheng'ao Avenue East Road, Conghua District, Guangzhou City, Guangdong Province, 510000 Patentee after: Guangzhou Aizhi Motor Co.,Ltd. Country or region after: China Address before: No. 112 Tongsheng Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province, 215126 Patentee before: SUZHOU AICHI TECHNOLOGY Co.,Ltd. Country or region before: China |