CN109818439A - The rotor of rotating electric machine - Google Patents
The rotor of rotating electric machine Download PDFInfo
- Publication number
- CN109818439A CN109818439A CN201711172706.6A CN201711172706A CN109818439A CN 109818439 A CN109818439 A CN 109818439A CN 201711172706 A CN201711172706 A CN 201711172706A CN 109818439 A CN109818439 A CN 109818439A
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- rotor
- plural
- magnetic
- angle
- width
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Abstract
The present invention discloses a kind of rotor of rotating electric machine, includes ring body, plural magnetic pole, plural magnetic slot and plural magnet.It is set in the ring body to plural magnetic pole radial, wherein each magnetic pole includes two magnetic portion, and each magnetic portion has angle C, and angle C is between 20 °~90 °.Between plural magnetic pole, plural magnet is respectively contained in plural magnetic slot plural magnetic slot.Rotor field is concentrated to reduce leakage field by the angle structure design of special angle range, and reduces cogging torque, to promote the performance of motor entirety.
Description
Technical field
The present invention is related with rotating electric machine, especially with regard to a kind of rotor of rotating electric machine.
Background technique
In recent years, rotation motor gradually adopts the built-in technology of magnet, is located in the silicon steel sheet of rotor because of magnet, can prevent
Magnet flies off and reduces the risk of magnet degaussing, but the missing due to there is leakage field, in the built-in rotor skill of magnet
In art field, there's no one who doesn't or isn't join hands in the technical research for reducing leakage field.
Specifically in the known technology to reduce leakage field, then just like disclosed in European patent EP 2201663B1 patent
Rotor technology, in the symmetrical irregular pentagon groove of the paraxial end side setting of the magnet of the built-in rotor of radial pattern, or just like day
Rotor technology disclosed in this patent JP3425176B2, it is symmetrical in the paraxial end side setting of the magnet of the built-in rotor of radial pattern
Triangular groove, and be then in the magnet distal shaft end side of the built-in rotor of radial pattern in the Japan Patent of JP5954279B2
It is provided with the flat part of flat surface, reduces the generation of magnetic leakage phenomenon accordingly.
But though above-mentioned known technology can reduce magnetic leakage, its effect still belongs to limited, still needs to be improved.
Summary of the invention
Therefore, the main object of the present invention i.e. be to provide a kind of rotor of rotating electric machine, can concentrate rotor field with
Leakage field is reduced, and reduces cogging torque, to promote the performance of motor entirety.
To reach above-mentioned purpose, the invention adopts the following technical scheme:
A kind of rotor of rotating electric machine, making each magnetic pole includes two symmetrical magnetic portion, wherein the side in each magnetic portion
Side and bevel edge define angle, and make angle C between 20 °~90 °.
The rotor of rotating electric machine includes ring body, plural magnetic pole, plural magnetic slot and plural magnet.Plural magnetic pole radial
In the ring body, wherein each magnetic pole includes two magnetic portion, and each magnetic portion has an angle C, and angle C is between 20 °~90 °
Between.Between plural magnetic pole, plural magnet is respectively contained in plural magnetic slot plural magnetic slot.
In one embodiment of this invention, which includes the protruding portion that plural number radially configures.
In one embodiment of this invention, magnetic pole includes two balanced configurations in outside and towards each magnetic slot stop section outstanding.
In one embodiment of this invention, each magnet has the first width W1, and the interconnecting piece of each magnetic pole is wide with second
Spend W2, the relationship of the first width W1 and the second width W2 are as follows:
In one embodiment of this invention, each magnet has the first width W1, and each magnetic pole has third width W3, third
Width W3 is greater than the first width W1.
In one embodiment of this invention, each magnet has the first length L1, and the interconnecting piece of each magnetic pole has the second length
Spend L2, the relationship of the first length L1, the second length L2 and angle C are as follows:
0.5L1×cos(C)≤L2
In other embodiments of the invention, angle C is 25 °, 50 ° or 80 °.
The invention has the advantages that
The rotor of rotating electric machine provided by the invention is reached by designing structure of the angle C between 20 °~90 °
It concentrates rotor field and reduces the purpose of leakage field.In addition, passing through the first width W1 of control magnet and the second width of interconnecting piece
The condition of W2 achievees the purpose that reduce torque.And pass through the second length L2's of the first length L1 and interconnecting piece that limit magnet
Relationship improves air gap magnetic interlinkage, reaches the effect of promoting motor overall performance.
Detailed description of the invention
Fig. 1 is the perspective view of first embodiment of the invention.
Fig. 2 is the exploded view of first embodiment of the invention.
Fig. 3 is the cross-sectional view of first embodiment of the invention 3-3 face line along Fig. 1.
Fig. 4 is the partial plan layout of first embodiment of the invention.
Fig. 5 is the partial plan layout of second embodiment of the invention.
Fig. 6 is the partial plan layout of third embodiment of the invention.
Fig. 7 is the relational graph of angle and torque in the present invention.
Fig. 8 is the relational graph of the second width and torque in the present invention.
Specific embodiment
The first embodiment of its rotor for being painted rotating electric machine of the invention referring to FIG. 1 to FIG. 4,.Rotating electric machine turns
Attached bag is containing fixing seat 50, a pressure ring 60 and plural number in a ring body 10, plural magnetic pole 20, plural magnetic slot 30, plural magnet 40, one
Connector 70.
Plural magnetic pole 20 radially is projected toward the outside in ring body 10, and plural magnetic slot is formed between adjacent magnetic pole 20
30.Ring body 10 includes that plural number radially is projected toward the outside in the protruding portion 11 in ring body 10, and protruding portion 11 is between adjacent
Between magnetic pole 20 and correspond to magnetic slot 30.In addition, each magnetic pole 20 include two balanced configurations in outside and towards magnetic slot 30 it is outstanding
Stop section 21, there are two corresponding stop sections 21 in groups in outside in this each magnetic slot 30.Plural magnet 40 is respectively contained in
In plural magnetic slot 30, and by the protruding portion 11 in ring body 10 and magnetic slot 30 is fixed on towards the stop section 21 outstanding of magnetic slot 30
It is interior.
Interior fixing seat 50 is set to one end of rotor, and part is set in rotor, and pressure ring 60 is set to the other end of rotor.
In addition, the first combined hole 51 and second that interior fixing seat 50 and pressure ring 60 are respectively provided with perforation 12 in corresponding ring body 10 combines
Hole 61, and the first combined hole 51, perforation 12 and the second combined hole 61 are arranged in assemble interior fixing seat 50, pressure by connector 70
Rotor is fixed between interior fixing seat 50 and pressure ring 60 by ring 60 and rotor with this.In the present embodiment, connector 70 is
Rivet, however in other embodiments, connector 70 can be changed to screw in response to the design of product, and the first combined hole 51, perforation
12 and second combined hole 61 be then accordingly designed as screw hole, to provide preferable design flexibility.
It further illustrates, each magnetic pole 20 includes two magnetic portion 22, is configured at each magnetic pole 20 adjacent to the side of ring body 10.
Each magnetic portion 22 includes a side 23 and a bevel edge 24, and an angle C is wherein defined between side 23 and bevel edge 24.At this
In embodiment, angle C is 25 °.By the angle C design of magnetic portion 22 on rotor, reaches and concentrate rotor field and raising air gap
Magnetic interlinkage, with improving performance and reduces rotor iron loss.
In addition, each magnet 40 has one first width W1, wherein the first width W1 is by corresponding between adjacent pole 20
Distance between side 23 is defined.Each magnetic pole 20 includes an interconnecting piece 25 to connect ring body 10, wherein each interconnecting piece
25 include two corresponding long sides 26, and the distance between two long sides 26 is one second width W2.First width W1 and the second width W2
Relationship are as follows:
There is magnetic pole 20 third a width W3, third width W3 to be defined by the distance between the two sides 23 of each magnetic pole 20,
Wherein the third width W3 of each magnetic pole 20 is greater than the first width W1 of each magnet 40.
Each magnet 40 has one first length L1, and the interconnecting piece 25 of each magnetic pole 20 has one second length L2,
In the first length L1, the second length L2 and angle C relationship are as follows:
0.5L1×cos(C)≤L2
It is worth noting that angle C in the present embodiment is 25 °, however in other embodiments, angle C can between
Angle between 20 °~90 °, as shown in figure 5, angle C is shown in 50 ° and Fig. 6, angle C is 80 °.
Fig. 7 is please referred to, is the angle C of magnetic portion 22 and the relational graph of torque, wherein horizontal axis show the angle of angle C
Degree, the longitudinal axis show the numerical value of torque.In the relationship of torque and angle C, torque is presented decline and becomes with the increase of angle C
Gesture.
Fig. 8 is please referred to, is the relational graph of the second width W2 and torque of interconnecting piece 25, wherein it is wide to show second for horizontal axis
The distance of W2 is spent, the longitudinal axis show the numerical value of torque.In the relationship of torque and the second width W2, torque is with the second width W2
Increase and downward trend is presented.
In conclusion the rotor of rotating electric machine provided by the present invention, each magnetic pole 20 includes two magnetic portion 22, wherein often
Side 23 and bevel edge 24 define angle C in one magnetic portion 22, by setting structure of the angle C between 20 °~90 °
Meter achievees the purpose that concentrate rotor field and reduces leakage field.In addition, each magnetic pole 20 includes interconnecting piece 25, and interconnecting piece 25 has
There is the second width W2, by controlling the condition of the first width W1 of magnet 40 and the second width W2 of interconnecting piece 25, reaches reduction
The purpose of torque.Finally, the relationship of the second length L2 by the first length L1 and interconnecting piece 25 that limit magnet 40, to improve
Air gap magnetic interlinkage, reaches the effect of promoting motor overall performance.
The above is presently preferred embodiments of the present invention and its technical principle used, for those skilled in the art
For, without departing from the spirit and scope of the present invention, any equivalent change based on the basis of technical solution of the present invention
Change, simple replacement etc. is obvious changes, all fall within the protection scope of the present invention.
Claims (9)
1. the rotor of rotating electric machine, characterized by comprising:
One ring body；
Plural magnetic pole is radially set in the ring body, wherein each magnetic pole includes two magnetic portion, and each magnetic portion has an angle C,
Angle C is between 20 °~90 °；
Plural magnetic slot, between plural magnetic pole；And
Plural magnet is respectively contained in plural magnetic slot.
2. the rotor of rotating electric machine as described in claim 1, which is characterized in that the ring body includes what plural number radially configured
Protruding portion.
3. the rotor of rotating electric machine as described in claim 1, which is characterized in that each magnetic pole include two balanced configurations in outside and
Towards each magnetic slot stop section outstanding.
4. the rotor of rotating electric machine as described in claim 1, which is characterized in that each magnet has one first width W1, each magnetic
Pole includes an interconnecting piece with one second width W2, the relationship of the first width W1 and the second width W2 are as follows:
5. the rotor of rotating electric machine as described in claim 1, which is characterized in that each magnet has one first width W1, each magnetic
It is great to there is a third width W3, the third width W3 to be greater than the first width W1.
6. the rotor of rotating electric machine as described in claim 1, which is characterized in that each magnet has one first length L1, each magnetic
Pole includes an interconnecting piece with one second length L2, the relationship of first length L1, the second length L2 and the angle C are as follows:
0.5L1×cos(C)≤L2。
7. the rotor of rotating electric machine as described in claim 1, which is characterized in that the angle C is 25 °.
8. the rotor of rotating electric machine as described in claim 1, which is characterized in that the angle C is 50 °.
9. the rotor of rotating electric machine as described in claim 1, which is characterized in that the angle C is 80 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711172706.6A CN109818439A (en) | 2017-11-22 | 2017-11-22 | The rotor of rotating electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711172706.6A CN109818439A (en) | 2017-11-22 | 2017-11-22 | The rotor of rotating electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109818439A true CN109818439A (en) | 2019-05-28 |
Family
ID=66601094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711172706.6A Withdrawn CN109818439A (en) | 2017-11-22 | 2017-11-22 | The rotor of rotating electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109818439A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203206019U (en) * | 2013-04-26 | 2013-09-18 | 重庆东桐科技有限公司 | Rotor structure of embedded tangential magnetic field brushless direct current motor |
| CN105391203A (en) * | 2014-09-03 | 2016-03-09 | 新安乃达驱动技术(上海)有限公司 | Brushless motor rotor structure employing built-in magnetic steel tangential magnetization |
| CN105978192A (en) * | 2016-05-05 | 2016-09-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor punching plate, rotor and motor |
| CN106230152A (en) * | 2016-09-26 | 2016-12-14 | 威灵（芜湖）电机制造有限公司 | Rotor core assembly, rotor and self-starting permanent magnet synchronous motor |
-
2017
- 2017-11-22 CN CN201711172706.6A patent/CN109818439A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203206019U (en) * | 2013-04-26 | 2013-09-18 | 重庆东桐科技有限公司 | Rotor structure of embedded tangential magnetic field brushless direct current motor |
| CN105391203A (en) * | 2014-09-03 | 2016-03-09 | 新安乃达驱动技术(上海)有限公司 | Brushless motor rotor structure employing built-in magnetic steel tangential magnetization |
| CN105978192A (en) * | 2016-05-05 | 2016-09-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor punching plate, rotor and motor |
| CN106230152A (en) * | 2016-09-26 | 2016-12-14 | 威灵（芜湖）电机制造有限公司 | Rotor core assembly, rotor and self-starting permanent magnet synchronous motor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20190528 |