CN107968503A - Low magnetism leakage rotor core - Google Patents
Low magnetism leakage rotor core Download PDFInfo
- Publication number
- CN107968503A CN107968503A CN201711428555.6A CN201711428555A CN107968503A CN 107968503 A CN107968503 A CN 107968503A CN 201711428555 A CN201711428555 A CN 201711428555A CN 107968503 A CN107968503 A CN 107968503A
- Authority
- CN
- China
- Prior art keywords
- magnet steel
- positioning protrusion
- rotor
- rotor punching
- rotor core
- 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
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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- 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)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The object of the present invention is to provide a kind of low magnetism leakage, the more preferable low magnetism leakage rotor core of magnet steel fixed effect.To achieve the above object, the present invention adopts the following technical scheme that：A kind of low magnetism leakage rotor core, including some rotor punchings being stacked, formed with some positioning protrusion in the rotor punching outer rim, uniform intervals are arranged on rotor punching some positioning protrusion in a ring, fluting on the positioning protrusion formed with opening towards rotor punching outer circumferential, the fluting axially penetrates through the positioning protrusion along rotor punching, and magnet steel is arranged between two adjacent positioning protrusion.
Description
Technical field
The present invention relates to a kind of low magnetism leakage rotor core.
Background technology
The rotor core peripheral side of brushless electric machine is fixed with some magnet steel, and magnet steel is mostly that direct glue is fixed on rotor core
On, when rotor core high-speed rotation, is easily got rid of magnet steel.
The content of the invention
The object of the present invention is to provide a kind of magnet steel fixed effect is more preferable, low magnetism leakage rotor core of low magnetism leakage.
To achieve the above object, the present invention adopts the following technical scheme that：A kind of low magnetism leakage rotor core, including some stackings
The rotor punching of setting, formed with some positioning protrusion in the rotor punching outer rim, some positioning protrusion in a ring uniformly between
Every being arranged on rotor punching, the fluting on the positioning protrusion formed with opening towards rotor punching outer circumferential is described to open
Groove axially penetrates through the positioning protrusion along rotor punching, and magnet steel is arranged between two adjacent positioning protrusion.
Magnet steel is arranged between two positioning protrusion, and a positioning protrusion is set between adjacent magnet steel so that magnet steel is with turning
The contact area bigger of sub- iron core, so that the fixed effect of magnet steel is more preferable, avoids throwing away for magnet steel；Pass through the shape on positioning protrusion
Into fluting, walked to avoid the magnetic line of force from positioning protrusion, to avoid, formed with circuit, leakage field is relatively low on positioning protrusion, so that
Motor can provide output so that the motor performance with rotor core of the present invention is more preferable.
Preferably, the positioning protrusion is in the structure of interior narrow outer width, the magnet steel is tiles magnet steel, and the magnet steel is inner
The arc length numerical value in face is more than the arc length numerical value of magnet steel outer end face, and magnet steel is fixed between two neighboring positioning protrusion, so that magnet steel
Side is in contact with positioning protrusion along the side of rotor rotation direction.Above-mentioned setting is to avoid magnet steel to outer circumferential movement with de-
From rotor core.
Preferably, the rotor punching outer rim is raised formed with some appearance glue extended to outer circumferential, magnet steel coordinates
Between two neighboring positioning protrusion, so that a part of inner face of magnet steel is contacted with holding glue protrusion outer rim, so that another portion of magnet steel
Divide intermarginal formed with gap outside inner face and rotor punching.Above-mentioned setting is so that the fixation of magnet steel is more stable.
Preferably, the magnet steel coordinates between two neighboring positioning protrusion, so that magnet steel outer end face is located at convex
Outside is played, so that the slot bottom of fluting is located relatively between magnet steel inner face and magnet steel outer end face.Above-mentioned setting is sharp to improve magnet steel
With rate, to reduce air gap, reduce leakage field；As much as possible do fluting deeper, to ensure the intensity of whole rotor punching, keep away
Exempt from the case that positioning protrusion fractures, maximumlly to reduce leakage field, and improve the rotor punching mould service life.
Preferably, the fluting is U-lag.Above-mentioned setting is so that fluting is easier to process.
The present invention is more preferable with magnet steel fixed effect, and the advantages of low magnetism leakage.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of rotor punching of the present invention；
Fig. 2 is another structure diagram of rotor punching of the present invention；
Fig. 3 is a kind of structure diagram that rotor punching of the present invention coordinates with magnet steel.
Embodiment
Below according to the drawings and specific embodiments, the invention will be further described.
As shown in Fig. 1 to Fig. 3, a kind of low magnetism leakage rotor core of the invention, including some rotor punchings being stacked
1, formed with some positioning protrusion 2 in 1 outer rim of rotor punching, uniform intervals are arranged at rotor punching to some positioning protrusion 2 in a ring
On piece 1, the fluting 3 on positioning protrusion 2 formed with opening towards rotor punching outer circumferential, fluting 3 is axially passed through along rotor punching
Positioning protrusion 2 is worn, magnet steel 4 is arranged between two adjacent positioning protrusion 2.Wherein, fluting 3 is U-lag.
Positioning protrusion 2 is in the structure of interior narrow outer width, and magnet steel 4 is tiles magnet steel, and the arc length numerical value of 4 inner face of magnet steel is more than magnetic
The arc length numerical value of steel outer end face, 1 outer rim of rotor punching formed with it is some to outer circumferential extend appearance glue protrusions 5,
Magnet steel 4 is fixed between two neighboring positioning protrusion 2, so that 4 steel side of magnetic and positioning protrusion 2 are along rotor rotation direction
Side is in contact so that 4 a part of inner face of magnet steel is contacted with holding raised 5 outer rims of glue so that 4 another part inner face of magnet steel with
It is intermarginal formed with gap 6 outside rotor punching, so that 4 outer end face of magnet steel is located at the outside of positioning protrusion 2, so that the slot bottom phase of fluting 3
It is pointed between magnet steel inner face and magnet steel outer end face.
Magnet steel is arranged between two positioning protrusion, a positioning protrusion is set between adjacent magnet steel, so that magnet steel is consolidated
Determine that effect is more preferable, avoid throwing away for magnet steel；By forming fluting on positioning protrusion, to avoid the magnetic line of force from positioning protrusion
Walk, to avoid, formed with circuit, leakage field is relatively low on positioning protrusion, so that motor can provide output so that there is the present invention to turn
The motor performance of sub- iron core is more preferable.
Claims (5)
1. a kind of low magnetism leakage rotor core, it is characterised in that including some rotor punchings being stacked, outside the rotor punching
Formed with some positioning protrusion on edge, uniform intervals are arranged on rotor punching some positioning protrusion in a ring, the convex
Fluting on rising formed with opening towards rotor punching outer circumferential, the fluting axially penetrate through the convex along rotor punching
Rise, magnet steel is arranged between two adjacent positioning protrusion.
2. low magnetism leakage rotor core according to claim 1, it is characterised in that the positioning protrusion is in the knot of interior narrow outer width
Structure, the magnet steel are tiles magnet steel, and the arc length numerical value of the magnet steel inner face is more than the arc length numerical value of magnet steel outer end face, and magnet steel is solid
Due between two neighboring positioning protrusion, so that magnet steel side is in contact with positioning protrusion along the side of rotor rotation direction.
3. low magnetism leakage rotor core according to claim 1, it is characterised in that the rotor punching outer rim is formed with some
The appearance glue extended to outer circumferential is raised, and magnet steel coordinates between two neighboring positioning protrusion, so that a part of inner face of magnet steel
Contacted with holding glue protrusion outer rim, so that intermarginal formed with gap outside magnet steel another part inner face and rotor punching.
4. low magnetism leakage rotor core according to claim 1, it is characterised in that the magnet steel coordinates in two neighboring positioning
Between protrusion, so that magnet steel outer end face is located on the outside of positioning protrusion, so that the slot bottom of fluting is located relatively at magnet steel inner face and magnetic
Between steel outer end face.
5. low magnetism leakage rotor core according to claim 1, it is characterised in that the fluting is U-lag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711428555.6A CN107968503A (en) | 2017-12-26 | 2017-12-26 | Low magnetism leakage rotor core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711428555.6A CN107968503A (en) | 2017-12-26 | 2017-12-26 | Low magnetism leakage rotor core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107968503A true CN107968503A (en) | 2018-04-27 |
Family
ID=61994823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711428555.6A Pending CN107968503A (en) | 2017-12-26 | 2017-12-26 | Low magnetism leakage rotor core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107968503A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425709A (en) * | 2008-08-11 | 2009-05-06 | 隆鑫工业有限公司 | Permanent magnet generator rotor |
| CN202949341U (en) * | 2012-12-14 | 2013-05-22 | 湖南华一电机制造有限公司 | Permanent magnet brushless DC motor |
| CN204835738U (en) * | 2015-08-13 | 2015-12-02 | 温岭市东菱电机有限公司 | Rotor for motors |
| CN205565943U (en) * | 2016-03-29 | 2016-09-07 | 加西贝拉压缩机有限公司 | Latent utmost point rotor magnet steel location structure |
| CN207588582U (en) * | 2017-12-26 | 2018-07-06 | 横店集团英洛华电气有限公司 | Low magnetism leakage rotor core |
-
2017
- 2017-12-26 CN CN201711428555.6A patent/CN107968503A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425709A (en) * | 2008-08-11 | 2009-05-06 | 隆鑫工业有限公司 | Permanent magnet generator rotor |
| CN202949341U (en) * | 2012-12-14 | 2013-05-22 | 湖南华一电机制造有限公司 | Permanent magnet brushless DC motor |
| CN204835738U (en) * | 2015-08-13 | 2015-12-02 | 温岭市东菱电机有限公司 | Rotor for motors |
| CN205565943U (en) * | 2016-03-29 | 2016-09-07 | 加西贝拉压缩机有限公司 | Latent utmost point rotor magnet steel location structure |
| CN207588582U (en) * | 2017-12-26 | 2018-07-06 | 横店集团英洛华电气有限公司 | Low magnetism leakage rotor core |
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