CN112615442A - Motor iron core structure - Google Patents
Motor iron core structure Download PDFInfo
- Publication number
- CN112615442A CN112615442A CN202011594785.1A CN202011594785A CN112615442A CN 112615442 A CN112615442 A CN 112615442A CN 202011594785 A CN202011594785 A CN 202011594785A CN 112615442 A CN112615442 A CN 112615442A
- Authority
- CN
- China
- Prior art keywords
- iron core
- pressing
- tooth
- base plate
- core structure
- 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.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000003825 pressing Methods 0.000 claims abstract description 53
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010923 batch production Methods 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 150000003376 silicon Chemical class 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
-
- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides a motor iron core structure which comprises an iron core main body, a tooth pressing plate, a pressing ring and an axial fastener, wherein the iron core main body is made of laminated silicon steel sheets; the tooth pressing plates are respectively arranged at two ends of the iron core main body; the pressing rings are respectively covered on the tooth pressing plates; the axial fasteners are respectively arranged on the surfaces of the pressing rings and extrude and compress the pressing rings towards the direction of the iron core main body. The invention has the advantages of simple processing and manufacturing of the tooth pressing plate, suitability for batch production, good product consistency, high yield, small iron core tooth tension, difficulty in sheet scattering and the like.
Description
Technical Field
The invention relates to the technical field of motor manufacturing, in particular to a motor iron core structure.
Background
The iron core is an important component of the motor and is made of a key material, namely a silicon steel sheet. In order to reduce eddy current loss and heat generation, the motor iron core is formed by laminating thin silicon steel sheets layer by layer, and two ends of the iron core are axially compressed by adopting a tooth pressing plate and a pressing ring. However, in the actual production process, the phenomena of iron core loose pieces and excessive tooth tension (the axial height of the tooth top of the iron core exceeds the axial height of the tooth bottom) often occur. The iron core scattered sheet and the tooth stretch are too big, easily lead to the motor to generate heat too big, also cause motor vibration and noise problem simultaneously, become the technical problem that technical staff in the field need solve urgently.
In order to solve the problems of loose sheets and tooth tension, the teeth of the tooth pressure plate are pre-bent to achieve the purpose of compressing the iron core silicon steel sheets after assembly. This kind of tooth clamp plate is great usually in thickness, and its tooth passes through modes such as laser cutting or machine tool machining shaping, and raw and other materials are extravagant great, and machine-shaping is with high costs, and is efficient, and has the pre-bending control degree of difficulty big, the relatively poor scheduling problem of uniformity.
Therefore, there is a need to provide a new solution.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention discloses a motor iron core structure, which comprises the following specific technical scheme:
the invention provides a motor iron core structure, which comprises an iron core main body, a tooth pressing plate, a pressing ring and an axial fastener,
the iron core main body is a laminated silicon steel sheet;
the tooth pressing plates are respectively arranged at two ends of the iron core main body;
the pressing rings are respectively covered on the tooth pressing plates;
the axial fasteners are respectively arranged on the surfaces of the pressing rings and extrude and compress the pressing rings towards the direction of the iron core main body.
Furthermore, the tooth pressing plate comprises a substrate and a pressing block, wherein the substrate is provided with racks which are uniformly distributed, and the pressing block is fixed in the middle of the racks.
Furthermore, the base plate is a thin plate, and the pressing block is welded to the middle position of the rack in a spot welding mode.
Furthermore, the pressing block is wedge-shaped, the large end of the pressing block is close to the tooth top of the rack, and the small end of the pressing block is close to the tooth root of the rack.
Further, the wedge angle of the pressing block is less than 3 degrees.
Further, the substrate is in the shape of a complete circular structure.
Furthermore, the shape of the substrate is a multi-segment sector structure on the same circumference.
Furthermore, the rack is positioned at the inner side of the substrate, and the tooth top of the rack is close to the center of the substrate.
Furthermore, the rack is located outside the substrate, and the tooth top of the rack is far away from the center of the substrate.
The invention has the following beneficial effects:
1. the motor iron core structure provided by the invention has the advantages that the tooth pressing plate is simple to process and manufacture, and the motor iron core structure is suitable for batch production.
2. The motor iron core structure provided by the invention is low in cost and beneficial to improving the market competitiveness.
3. The motor iron core structure provided by the invention has the advantages of good product consistency and high yield.
4. The motor iron core structure provided by the invention has small tooth size and is not easy to loose pieces.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a core structure of a motor according to an embodiment of the present invention.
Fig. 2 is a schematic view of the structure of the toothed pressure plate of fig. 1 with the rack located substantially outside.
Fig. 3 is a schematic view of the toothed press plate of fig. 1 with the rack substantially inside.
Fig. 4 is a schematic structural view of a cross-sectional view of the tooth pressure plate of fig. 2 and 3.
The iron core comprises an iron core body 1, a tooth pressing plate 2, a pressing ring 3, an axial fastening piece 4, a base plate 21, a pressing block 22 and a rack 23.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention provides a motor iron core structure, which comprises an iron core main body 1, a tooth pressing plate 2, a pressing ring 3 and an axial fastener 4, and is shown in figures 1-4. The iron core main body 1 is a laminated silicon steel sheet. The tooth pressing plates 2 are respectively arranged at two ends of the iron core main body 1. The pressing rings 3 are respectively covered on the tooth pressing plates 2. The axial fasteners 4 are respectively arranged on the surfaces of the pressing rings 3, and the pressing rings 3 are extruded and compressed in the direction of the iron core body 1 by the axial fasteners 4.
The tooth pressing plate 2 comprises a base plate 21 and a pressing block 22, wherein racks 23 which are uniformly distributed are arranged on the base plate 21, and the pressing block 22 is fixed in the middle of the racks 23.
The base plate 21 is a thin plate, and the pressing block 22 is spot-welded to the middle position of the rack 23.
The pressing block 22 is wedge-shaped, the large end of the pressing block 22 is close to the tooth top of the rack 23, and the small end of the pressing block 22 is close to the tooth root of the rack 23.
The wedge angle of the pressure piece 22 is less than 3 deg..
In one embodiment, the substrate 21 is shaped as a complete circular structure.
In one embodiment, the base plate 21 is in the shape of a multi-segment sector structure on the same circumference.
In one embodiment, the rack 23 is located inside the base plate 21, and its tooth top is toward the center of the base plate 21.
In one embodiment, the rack 23 is located outside the base plate 21, and its tooth top is far away from the center of the base plate 21.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.
While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications and variations may be made therein by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. A motor iron core structure is characterized by comprising an iron core main body, a tooth pressing plate, a pressing ring and an axial fastener,
the iron core main body is a laminated silicon steel sheet;
the tooth pressing plates are respectively arranged at two ends of the iron core main body;
the pressing rings are respectively covered on the tooth pressing plates;
the axial fasteners are respectively arranged on the surfaces of the pressing rings and extrude and compress the pressing rings towards the direction of the iron core main body.
2. The motor iron core structure according to claim 1, wherein the tooth pressing plate comprises a base plate and a pressing block, wherein the base plate is provided with uniformly arranged racks, and the pressing block is fixed in the middle of the racks.
3. The motor core structure according to claim 2, wherein the base plate is a thin plate, and the press block is spot-welded to a middle position of the rack.
4. The motor core structure of claim 2, wherein the compacts are wedge-shaped, with a large end of the compacts being located near the top of the rack and a small end of the compacts being located near the bottom of the rack.
5. The electric machine core structure of claim 1, wherein the wedge angle of the compacts is less than 3 °.
6. The electric machine core structure of claim 2, wherein the base plate is shaped as a complete circular structure.
7. The motor core structure of claim 2 wherein the base plate is shaped as a multi-segment sector on the same circumference.
8. The electric machine core structure according to claim 6 or 7, wherein the rack is located inside the base plate, and the tooth top thereof is toward the center of the base plate.
9. The motor core structure according to claim 6 or 7, wherein the rack is located outside the base plate, and a tooth crest thereof is away from a center of the base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011594785.1A CN112615442A (en) | 2020-12-29 | 2020-12-29 | Motor iron core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011594785.1A CN112615442A (en) | 2020-12-29 | 2020-12-29 | Motor iron core structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112615442A true CN112615442A (en) | 2021-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011594785.1A Pending CN112615442A (en) | 2020-12-29 | 2020-12-29 | Motor iron core structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112615442A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201466810U (en) * | 2009-06-30 | 2010-05-12 | 上海电气电站设备有限公司 | Inward inclined tooth support structure for generator |
| CN204068458U (en) * | 2014-05-21 | 2014-12-31 | 无锡华达电机有限公司 | Rotor for electromotor tooth support |
| CN104578478A (en) * | 2013-10-29 | 2015-04-29 | 泰豪沈阳电机有限公司 | Tooth support structure for motor stator |
| CN209299001U (en) * | 2019-06-13 | 2019-08-23 | 哈尔滨理工大学 | A kind of small air-cooled steam turbine generator stator end low-loss compressing structure |
| CN110518721A (en) * | 2019-07-12 | 2019-11-29 | 西安中车永电捷力风能有限公司 | A kind of novel tooth pressboard structure of wind-driven generator |
| CN214900371U (en) * | 2020-12-29 | 2021-11-26 | 江苏中车电机有限公司 | Motor iron core structure |
-
2020
- 2020-12-29 CN CN202011594785.1A patent/CN112615442A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201466810U (en) * | 2009-06-30 | 2010-05-12 | 上海电气电站设备有限公司 | Inward inclined tooth support structure for generator |
| CN104578478A (en) * | 2013-10-29 | 2015-04-29 | 泰豪沈阳电机有限公司 | Tooth support structure for motor stator |
| CN204068458U (en) * | 2014-05-21 | 2014-12-31 | 无锡华达电机有限公司 | Rotor for electromotor tooth support |
| CN209299001U (en) * | 2019-06-13 | 2019-08-23 | 哈尔滨理工大学 | A kind of small air-cooled steam turbine generator stator end low-loss compressing structure |
| CN110518721A (en) * | 2019-07-12 | 2019-11-29 | 西安中车永电捷力风能有限公司 | A kind of novel tooth pressboard structure of wind-driven generator |
| CN214900371U (en) * | 2020-12-29 | 2021-11-26 | 江苏中车电机有限公司 | Motor iron core structure |
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