CN109347235B - Insulating framework and stator - Google Patents
Insulating framework and stator Download PDFInfo
- Publication number
- CN109347235B CN109347235B CN201811321545.7A CN201811321545A CN109347235B CN 109347235 B CN109347235 B CN 109347235B CN 201811321545 A CN201811321545 A CN 201811321545A CN 109347235 B CN109347235 B CN 109347235B
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- China
- Prior art keywords
- framework
- iron core
- insulating
- tooth
- slot
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 abstract description 23
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003014 reinforcing effect 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
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides an insulating framework, and relates to the technical field of motors. The insulation framework is arranged at the end part of the iron core, and the iron core comprises an iron core yoke part and a plurality of iron core tooth parts; the insulation framework comprises framework yoke parts and a plurality of framework tooth parts, wherein the number of the framework tooth parts is the same as that of the iron core tooth parts, and the insulation framework is characterized in that the width of the framework tooth parts is larger than that of the iron core tooth parts. After the insulating framework is assembled on the iron core, the insulating framework can fix the insulating paper when the winding is wound, and the winding wire is not easy to contact with the insulating paper because the tooth part of the framework protrudes out, so that the situation that the insulating paper at the joint part of the framework and the insulating paper is wound into the stator iron core during winding of the winding is greatly reduced.
Description
Technical Field
The invention relates to the field of motors, in particular to an insulating framework and a stator.
Background
The stator of the motor is an important component of the motor. The motor stator generally comprises a stator core, an insulating framework, insulating paper and windings, wherein the insulating framework is arranged on two end parts of the stator core, the insulating paper is positioned in empty slots among teeth of the core, and the insulating framework is matched with the insulating paper to electrically isolate the stator core and the windings. The width of the framework tooth parts of the existing insulating framework is smaller than or equal to that of the iron core tooth parts. Thus, the insulating paper can only be attached along the edge of the framework tooth part.
In the winding process, the connection part of the skeleton tooth part and the skeleton yoke part needs to bear larger winding tension, and the larger the wire diameter is, the larger the winding tension value is, and because the width of the skeleton tooth part of the existing insulating skeleton is smaller than or equal to the width of the iron core tooth part, the winding wire is easy to contact with the insulating paper, so that the insulating paper at the joint part of the skeleton and the insulating paper is often wound into the stator core in the winding process of the winding, and the motor is scrapped.
Disclosure of Invention
The invention provides an insulating framework and a stator, and aims to solve the problem that an insulating paper at the joint part of the framework and insulating paper is rolled into a stator iron core when the existing stator is used for winding.
The invention is realized in the following way:
an insulating framework is arranged at the end part of an iron core, and the iron core comprises an iron core yoke part and a plurality of iron core tooth parts; the insulation framework comprises framework yoke parts and a plurality of framework tooth parts, the number of the framework tooth parts is the same as that of the iron core tooth parts, and the width of the framework tooth parts is larger than that of the iron core tooth parts.
Further, in a preferred embodiment of the present invention, first slots are symmetrically disposed on two sides of one face of each of the skeleton tooth portions facing the iron core, and a distance between two first slots on the same skeleton tooth portion is greater than or equal to a width of the iron core tooth portion.
Further, in a preferred embodiment of the present invention, the width of the backbone yoke is greater than the width of the core yoke.
Further, in a preferred embodiment of the present invention, a second slot is provided on the skeleton yoke portion between two adjacent skeleton tooth portions, and two ends of the second slot are respectively communicated with the first slots on two sides of the second slot.
Further, in a preferred embodiment of the present invention, the thickness of the skeleton tooth portion is H1, the depth of the first slot is H1, and the depth of the second slot is H2, where H1/3 is equal to or less than h1=h2 is equal to or less than h1×2/3.
Further, in the preferred embodiment of the present invention, h1=h2=h1/2.
The stator comprises an iron core and two insulating frameworks, wherein the two insulating frameworks are respectively arranged at two ends of the iron core, and the two insulating frameworks are any one of the insulating frameworks.
The beneficial effects of the invention are as follows: according to the insulating framework obtained through the design, the width of the framework tooth part is larger than that of the iron core tooth part, so that when the insulating framework is assembled on the iron core, the framework tooth part can completely cover the iron core tooth part, and a part of the edge part protrudes. When the insulating paper is mounted, the insulating paper is basically attached to the side wall of the iron core tooth, so that the end of the insulating paper can be covered together by the framework tooth compared with a part of the protrusion of the iron core tooth. Meanwhile, as the two ends of the iron core are provided with the insulating frameworks, the two insulating frameworks can also play a certain role in clamping and fixing the insulating paper. Therefore, when the winding is wound, the insulating framework can fix the insulating paper, and as the tooth part of the framework protrudes out of a part of the insulating paper, the winding wire is not easy to contact with the insulating paper, so that the situation that the insulating paper at the joint part of the framework and the insulating paper is wound into the stator core is greatly reduced when the winding is wound.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an insulating framework according to an embodiment of the present invention;
fig. 2 is a schematic view of a partial structure of an insulating framework according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of an insulating paper;
fig. 4 is a schematic structural view of an insulating framework assembled with insulating paper.
Icon: a backbone yoke 1; a skeleton tooth 2; a first slot 3; a second slot 4; and an insulating paper 5.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
An embodiment 1, please refer to fig. 1-4, provides an insulation framework, which is disposed at an end of an iron core, wherein the iron core includes an iron core yoke portion and a plurality of iron core teeth portions; the insulating skeleton includes skeleton yoke portion 1 and a plurality of skeleton tooth portion 2, and the quantity of skeleton tooth portion 2 is the same with the quantity of iron core tooth portion, and the width of skeleton tooth portion 2 is greater than the width of iron core tooth portion.
The width of skeleton tooth portion 2 is greater than the width of iron core tooth portion, when making insulating skeleton assembly on the iron core, skeleton tooth portion 2 can cover iron core tooth portion completely, and edge can the protrusion partly. When the insulating paper 5 is attached, the insulating paper 5 is substantially attached to the side wall of the core tooth, and therefore, the end of the insulating paper 5 can be covered with the frame tooth 2 as compared with a part of the core tooth protruding. Meanwhile, as the two ends of the iron core are provided with the insulating frameworks, the two insulating frameworks can also play a certain role in clamping and fixing the insulating paper 5. Therefore, when the winding is wound, the insulating framework can fix the insulating paper 5, and as the framework tooth part 2 protrudes out of a part, the winding wire is not easy to contact with the insulating paper 5, so that the situation that the insulating paper 5 at the joint part of the framework and the insulating paper 5 is wound into the stator core is greatly reduced when the winding is wound.
Further, referring to fig. 1 and 2, in the present embodiment, first slots 3 are symmetrically disposed on two sides of a face of each frame tooth 2 facing the iron core, and a distance between two first slots 3 on the same frame tooth 2 is greater than or equal to a width of the iron core tooth. The specific embodiment is that after the skeleton tooth 2 covers the iron core tooth, two first slots 3 are positioned at two sides of the iron core tooth, and the width of the first slots 3 is matched with the thickness of the insulating paper 5, so that the end part of the insulating paper 5 can be inserted into the first slots 3. Thus, when the stator is assembled, the two ends of the insulating paper 5 can be inserted into the first slot 3 on the framework tooth part 2, so that the insulating paper 5 can be clamped by the two insulating frameworks, the insulating paper 5 is not easy to move, and the winding wires are not easy to contact. Further reduces the occurrence of the situation that the insulating paper 5 at the joint part of the framework and the insulating paper 5 is wound into the stator core when the winding is wound.
Further, referring to fig. 1 and 2, in the present embodiment, the width of the backbone yoke 1 is larger than the width of the core yoke. Specifically, the inner diameter of the inner edge of the bobbin yoke 1 is smaller than the inner diameter of the inner edge of the core yoke. Since a part of the insulating paper 5 is attached to the core yoke during assembly, in this embodiment, the inner edge of the frame yoke 1 protrudes more than the inner edge of the core yoke, so that the insulating paper 5 is clamped and fixed.
Further, referring to fig. 1 and 2, in the present embodiment, a second slot 4 is disposed on the skeleton yoke 1 between two adjacent skeleton teeth 2, and two ends of the second slot 4 are respectively connected to the first slots 3 on two sides thereof. The two first slots 3 and the second slot 4 together form a completed slot, and the end of the insulating paper 5 can be completely inserted into the slot. Further reinforcing the fixing effect on the insulating paper 5. The insulating paper 5 can be more stably fixed between the two insulating frameworks, and the running is not easy to occur.
Further, in order to make the insulation paper 5 not easy to fall out after being inserted into the first slot 3 and the second slot 4, in this embodiment, the thickness of the skeleton tooth portion 2 is H1, the depth of the first slot 3 is H1, the depth of the second slot 4 is H2, and H1/3 is less than or equal to h1=h2 is less than or equal to h1×2/3. Preferably, h1=h2=h1/2.
Meanwhile, in the stator formed by the insulating framework, the iron core and other components, as the framework tooth part 2 protrudes out of a part, a certain gap exists between the winding and the iron core, and the gap can effectively isolate the electrified enameled wire conductor (winding wire) from the iron core, so that the leakage current value of the motor is obviously reduced. The stator assembled using the insulating frame provided in this example was measured to have a leakage current maximum of 0.352mA in the test. And the maximum value of leakage current of the stator assembled by using the existing insulating framework is 0.485mA. Therefore, the insulating framework provided by the embodiment can effectively reduce current leakage when the stator operates.
Referring to fig. 4, the embodiment further provides a stator, which includes an iron core and two insulating frameworks, wherein the two insulating frameworks are respectively disposed at two ends of the iron core, and the two insulating frameworks are all any one of the insulating frameworks.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. An insulating framework is arranged at the end part of an iron core, and the iron core comprises an iron core yoke part and a plurality of iron core tooth parts; the insulation framework comprises framework yoke parts and a plurality of framework tooth parts, the number of the framework tooth parts is the same as that of the iron core tooth parts, and the insulation framework is characterized in that the width of the framework tooth parts is larger than that of the iron core tooth parts;
first slots are symmetrically arranged on two sides of one face, facing the iron core, of each framework tooth part, and the distance between the two first slots on the same framework tooth part is larger than or equal to the width of the iron core tooth part;
a second slot is arranged on the skeleton yoke part between two adjacent skeleton tooth parts, and two ends of the second slot are communicated with the first slots on two sides of the second slot;
the thickness of the skeleton tooth part is H1, the depth of the first slot is H1, the depth of the second slot is H2, H1/3 is less than or equal to h1=h2 is less than or equal to H1 x 2/3;
the two first slots and the second slot form a slot together, and the end part of the insulating paper is inserted into the slot.
2. The insulating bobbin of claim 1, wherein the bobbin yoke has a width greater than a width of the core yoke.
3. The insulating skeleton according to claim 1, wherein h1=h2=h1/2.
4. A stator, characterized by comprising an iron core and two insulating frameworks, wherein the two insulating frameworks are respectively arranged at two ends of the iron core, and the two insulating frameworks are all the insulating frameworks according to any one of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811321545.7A CN109347235B (en) | 2018-11-07 | 2018-11-07 | Insulating framework and stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811321545.7A CN109347235B (en) | 2018-11-07 | 2018-11-07 | Insulating framework and stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109347235A CN109347235A (en) | 2019-02-15 |
| CN109347235B true CN109347235B (en) | 2023-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811321545.7A Active CN109347235B (en) | 2018-11-07 | 2018-11-07 | Insulating framework and stator |
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| Country | Link |
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| CN (1) | CN109347235B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311482A (en) * | 2019-07-02 | 2019-10-08 | 格力电器（合肥）有限公司 | Stator structure, direct current motor comprising same and electric appliance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205960828U (en) * | 2016-08-08 | 2017-02-15 | 中国科学院深圳先进技术研究院 | Stator bobbin and have motor of this bobbin |
| CN106787342A (en) * | 2016-11-18 | 2017-05-31 | 珠海凌达压缩机有限公司 | A kind of insulation framework structure and motor |
| CN107615627A (en) * | 2015-12-31 | 2018-01-19 | 深圳配天智能技术研究院有限公司 | The assembled fixture of motor |
| JP2018074672A (en) * | 2016-10-26 | 2018-05-10 | デュポン帝人アドバンスドペーパー株式会社 | Slot liner and method for manufacturing the same |
| CN209030008U (en) * | 2018-11-07 | 2019-06-25 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of insulation framework and stator |
-
2018
- 2018-11-07 CN CN201811321545.7A patent/CN109347235B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107615627A (en) * | 2015-12-31 | 2018-01-19 | 深圳配天智能技术研究院有限公司 | The assembled fixture of motor |
| CN205960828U (en) * | 2016-08-08 | 2017-02-15 | 中国科学院深圳先进技术研究院 | Stator bobbin and have motor of this bobbin |
| JP2018074672A (en) * | 2016-10-26 | 2018-05-10 | デュポン帝人アドバンスドペーパー株式会社 | Slot liner and method for manufacturing the same |
| CN106787342A (en) * | 2016-11-18 | 2017-05-31 | 珠海凌达压缩机有限公司 | A kind of insulation framework structure and motor |
| CN209030008U (en) * | 2018-11-07 | 2019-06-25 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of insulation framework and stator |
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| Publication number | Publication date |
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| CN109347235A (en) | 2019-02-15 |
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