CN215681954U - Rotor lamination structure - Google Patents
Rotor lamination structure Download PDFInfo
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- CN215681954U CN215681954U CN202121396005.2U CN202121396005U CN215681954U CN 215681954 U CN215681954 U CN 215681954U CN 202121396005 U CN202121396005 U CN 202121396005U CN 215681954 U CN215681954 U CN 215681954U
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- magnet steel
- magnetic steel
- lamination
- steel fixing
- rotor lamination
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a rotor lamination structure, which belongs to the technical field of automobile parts, wherein a lamination is circular, a circular hole is formed in the center of the lamination, a plurality of fixing units which are uniformly arranged are arranged on the circumference of the lamination, each fixing unit consists of two first magnetic steel fixing holes, one second magnetic steel fixing hole and two holes, the first magnetic steel fixing holes and the second magnetic steel fixing holes are integrally rectangular and used for placing magnetic steels, the two first magnetic steel fixing holes are arranged at a certain angle, the second magnetic steel fixing holes are positioned in the middle positions above the two first magnetic steel fixing holes, and the holes are respectively positioned on one side of the first magnetic steel fixing holes. The utility model provides a rotor lamination structure, which enables a motor rotor lamination to meet the requirements of light weight and electromagnetic performance and the strength performance at high rotating speed through structural shape design.
Description
Technical Field
The utility model belongs to the technical field of automobile parts, and particularly relates to a rotor lamination with a magnetic steel fixing and stress reducing functional structure.
Background
The end face of the rotor lamination is formed by uniformly distributing a plurality of hole grooves in the circumferential direction, and magnetic isolation bridges are distributed on the edges of the hole grooves, wherein the narrower the magnetic isolation bridge is, the better the electromagnetic performance is, and the wider the magnetic isolation bridge is, the better the strength performance is.
The prior art discloses an electrical machine including a rotor lamination assembly having a lamination member formed of a material having a first yield strength. The lamination member includes a first bridge portion having a first width, and a first bridge region having a first thickness. The rotor lamination assembly also includes at least one lamination section having a second bridge region having a second thickness. The second thickness is greater than the first thickness. The rotor lamination assembly also includes at least one lamination element formed from a second material having a second yield strength that is higher than the first yield strength, and at least one lamination component. The at least one lamination component includes a second bridge portion having a second width. The second width is greater than the first width.
The prior art also discloses a rotor lamination of the present invention having a reduced stress magnet stop, the rotor rotatable about an axis comprising a plurality of magnets and a plurality of laminations stacked along the axis. The laminations have an outer surface remote from the axis and an inner surface adjacent the axis. A plurality of magnet slots are defined between the outer surface and the inner surface and are angled between an outer barrier proximate the outer surface and an inner barrier proximate the inner surface. The magnet is disposed within the magnet slot between the outer barrier and the inner barrier such that a first end of the magnet is adjacent the outer barrier and a second end of the magnet is adjacent the inner barrier. An inner retention stop extends into the magnet slot at the inner barrier and is formed within the inner barrier closer to the outer surface.
The prior art also discloses a rotor lamination and a motor having the same, the motor including: the body, the center of body is equipped with the shaft hole that link up along its thickness direction, the position of neighbouring its outer profile on the body is equipped with along its circumference spaced apart a plurality of magnet grooves of arranging, the position of neighbouring on the body the shaft hole is equipped with along its circumference spaced apart a plurality of through-flow holes of arranging, and arbitrary two are adjacent be formed with a rib between the through-flow hole, the quantity of rib with the quantity inequality of magnet groove. The rotor lamination of the embodiment of the utility model has good damping effect, and can effectively prevent the vibration of the rotor core from being transmitted to the crankshaft and further transmitted to the driven part, thereby effectively reducing the vibration and noise of the whole equipment; the rotor lamination is simple in structure, convenient to manufacture and high in practicability.
In the prior art, the requirements of the built-in permanent magnet synchronous motor rotor on light weight, electromagnetic performance and strength performance at high rotating speed are difficult to meet at the same time, the rotor structure is provided with more weight removing holes and narrower magnetic isolation bridges according to the requirements on light weight and electromagnetic performance, but the weight removing holes and the magnetic isolation bridge structure usually show very high stress level under the design requirement of high rotating speed, and the strength performance requirements cannot be met.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defect that the requirements of the built-in permanent magnet synchronous motor rotor on light weight, electromagnetic performance and strength performance at high rotating speed are difficult to meet simultaneously in the prior art, the utility model provides a rotor lamination structure, and the motor rotor lamination can meet the requirements of light weight, electromagnetic performance and strength performance at high rotating speed through structural shape design.
The utility model is realized by the following technical scheme:
the utility model provides a rotor lamination structure, the lamination is circular, and the center is provided with the circular port, is provided with a plurality of fixed units of evenly arranging on the circumference of lamination, fixed unit comprises two first magnet steel fixed orificess 22, a second magnet steel fixed orifices 23 and two holes 21, first magnet steel fixed orifices 22 and second magnet steel fixed orifices 23 are whole all to be rectangular form for place the magnet steel, two first magnet steel fixed orifices 22 are certain angle and arrange, and second magnet steel fixed orifices 23 are located the top intermediate position of two first magnet steel fixed orifices 22, hole 21 is located one side of first magnet steel fixed orifices 22 respectively.
Preferably, the certain angle is in the range of 90-180 degrees.
Preferably, four corners of the first magnetic steel fixing hole 22 and the second magnetic steel fixing hole 23 are all rounded structures.
Preferably, the thickness of the laminate is 0.25mm to 0.35 mm.
Preferably, the distance between the two first magnetic steel fixing holes 22 is 2mm-4 mm.
Preferably, the distance between the first magnetic steel fixing hole 22 and the hole 21 ranges from 0.8mm to 1.5 mm.
Preferably, one end of the first magnetic steel fixing hole 22 is provided with an inner recess for unloading, so as to reduce stress concentration.
Compared with the prior art, the utility model has the following advantages:
the shape of the lamination magnetic isolation bridge can realize excellent electromagnetic performance and ensure the strength performance of the lamination under the working condition of the limit rotating speed.
Drawings
In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic view of an interior permanent magnet synchronous motor rotor;
FIG. 2 is a view of the end of the lamination;
in the figure: lamination 12, axis 13, hole 21, first magnetic steel fixing hole 22, second magnetic steel fixing hole 23,
Detailed Description
The following embodiments are only used for illustrating the technical solutions of the present invention more clearly, and therefore, the following embodiments are only used as examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the utility model pertains.
Example 1
As shown in fig. 1 and 2, a rotor lamination of the present invention is a rotor that is rotatable about an axis 13 and that can be used in an electric machine. The rotor includes a plurality of magnetic steels and a plurality of laminations stacked along an axis. The laminations are preferably made of non-oriented silicon steel material and the rotor is laminated from a plurality of laminations that are secured to each other as a core by welding, riveting, fasteners, or the like. The lamination is circular, and the center is provided with the circular port, is provided with a plurality of fixed units of evenly arranging on the circumference of lamination, fixed unit comprises two first magnet steel fixed orificess 22, a second magnet steel fixed orifices 23 and two holes 21, first magnet steel fixed orifices 22 and second magnet steel fixed orifices 23 are whole all to be rectangular form for place the magnet steel, two first magnet steel fixed orifices 22 are certain angle and arrange, and second magnet steel fixed orifices 23 are located the top intermediate position of two first magnet steel fixed orificess 22, hole 21 is located one side of first magnet steel fixed orifices 22 respectively.
The certain angle is in the range of 90-180 degrees.
Four corners of the first magnetic steel fixing hole 22 and the second magnetic steel fixing hole 23 are all of a round angle structure.
The thickness of the lamination is 0.25-0.35 mm.
The distance between the two first magnetic steel fixing holes 22 is 2mm-4 mm.
The distance between the first magnetic steel fixing hole 22 and the first magnetic steel fixing hole 21 ranges from 0.8mm to 1.5 mm.
One end of the first magnetic steel fixing hole 22 is provided with an inner groove for unloading, so that stress concentration is reduced.
For clearly and completely describing the technical scheme and the specific working process thereof, the specific implementation mode of the utility model is as follows by combining the attached drawings of the specification:
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; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 utility model. 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 and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the utility model is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (7)
1. The utility model provides a rotor lamination, a serial communication port, the lamination is circular, and the center is provided with the circular port, is provided with a plurality of fixed units of evenly arranging on the circumference of lamination, fixed unit comprises two first magnet steel fixed orificess (22), a second magnet steel fixed orifices (23) and two holes (21), first magnet steel fixed orifices (22) and second magnet steel fixed orifices (23) are whole all to be rectangular form for place the magnet steel, two first magnet steel fixed orifices (22) are certain angle and arrange, and second magnet steel fixed orifices (23) are located the top intermediate position of two first magnet steel fixed orifices (22), hole (21) are located one side of first magnet steel fixed orifices (22) respectively.
2. A rotor lamination according to claim 1, wherein the certain angle is in the range of 90-180 degrees.
3. A rotor lamination stack according to claim 1, wherein four corners of the first magnetic steel fixing hole (22) and the second magnetic steel fixing hole (23) are rounded structures.
4. A rotor lamination according to claim 1, wherein the laminations have a thickness of 0.25mm to 0.35 mm.
5. A rotor lamination according to claim 1, wherein the distance between the two first magnetic steel fixing holes (22) is 2mm to 4 mm.
6. A rotor lamination according to claim 1, wherein the distance between the first magnet steel fixing hole (22) and the hole (21) is in the range of 0.8mm to 1.5 mm.
7. A rotor lamination stack according to claim 1, wherein one end of the first magnet steel fixing hole (22) is provided with an inner relief groove for reducing stress concentration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121396005.2U CN215681954U (en) | 2021-06-23 | 2021-06-23 | Rotor lamination structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121396005.2U CN215681954U (en) | 2021-06-23 | 2021-06-23 | Rotor lamination structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215681954U true CN215681954U (en) | 2022-01-28 |
Family
ID=79976516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121396005.2U Active CN215681954U (en) | 2021-06-23 | 2021-06-23 | Rotor lamination structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215681954U (en) |
-
2021
- 2021-06-23 CN CN202121396005.2U patent/CN215681954U/en active Active
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