CN207588582U - Low magnetism leakage rotor core - Google Patents
Low magnetism leakage rotor core Download PDFInfo
- Publication number
- CN207588582U CN207588582U CN201721842278.9U CN201721842278U CN207588582U CN 207588582 U CN207588582 U CN 207588582U CN 201721842278 U CN201721842278 U CN 201721842278U CN 207588582 U CN207588582 U CN 207588582U
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- 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.)
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Abstract
The purpose of this utility model is to provide the better low magnetism leakage rotor core of a kind of low magnetism leakage, magnet steel fixed effect.To achieve the above object, the utility model adopts the following technical solution：A kind of low magnetism leakage rotor core, including several rotor punchings being stacked, several positioning protrusion are formed in the rotor punching outer rim, uniform intervals are set on rotor punching several positioning protrusion in a ring, fluting of the opening towards rotor punching outer circumferential is formed on the positioning protrusion, the fluting axially penetrates through the positioning protrusion along rotor punching, and magnet steel is set between two adjacent positioning protrusion.
Description
Technical field
The utility model is related to a kind of low magnetism leakage rotor cores.
Background technology
The rotor core peripheral side of brushless motor is fixed with several 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.
Invention content
The purpose of this utility model is to provide that 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 utility model adopts the following technical solution：A kind of low magnetism leakage rotor core, including several
The rotor punching being stacked is formed with several positioning protrusion in the rotor punching outer rim, and several positioning protrusion are equal in a ring
It is even to be arranged at intervals on rotor punching, fluting of the opening towards rotor punching outer circumferential, institute are formed on the positioning protrusion
It states fluting and axially penetrates through the positioning protrusion along rotor punching, magnet steel is set 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 from positioning protrusion to avoid the magnetic line of force, to avoid circuit is formed on positioning protrusion, leakage field is relatively low, so that
Motor can provide output so that the motor performance with the utility model rotor core is more preferable.
Preferably, the positioning protrusion be in interior narrow outer width structure, the magnet steel be tiles magnet steel, the magnet steel inner end
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 formed with several appearance glue protrusions extended to outer circumferential, magnet steel cooperation
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
Inner face is divided to be formed with gap with intermarginal outside 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 entire 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 utility model is more preferable with magnet steel fixed effect, and the advantages of low magnetism leakage.
Description of the drawings
Fig. 1 is a kind of structure diagram of the utility model rotor punching；
Fig. 2 is another structure diagram of the utility model rotor punching；
Fig. 3 is the utility model rotor punching and a kind of structure diagram of magnet steel cooperation.
Specific embodiment
The utility model is further described below according to the drawings and specific embodiments.
As shown in Fig. 1 to Fig. 3, a kind of low magnetism leakage rotor core of the utility model, including several rotors being stacked
Punching 1, is formed with several positioning protrusion 2 in 1 outer rim of rotor punching, and uniform intervals are set to and turn several positioning protrusion 2 in a ring
In sub- punching 1, fluting 3 of the opening towards rotor punching outer circumferential is formed on positioning protrusion 2, fluting 3 is along rotor punching axis
To through positioning protrusion 2, magnet steel 4 is set 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 are formed with several appearance glue protrusions 5 extended to outer circumferential,
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 side
To side be 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 end of magnet steel
Face is formed with gap 6 with intermarginal outside rotor punching, so that 4 outer end face of magnet steel is located at 2 outside of positioning protrusion, so that the slot of fluting 3
Bottom is located relatively 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
It walks, to avoid circuit is formed on positioning protrusion, leakage field is relatively low, so that motor can provide output so that there is this practicality newly
The motor performance of type rotor core is more preferable.
Claims (5)
1. a kind of low magnetism leakage rotor core, it is characterised in that including several rotor punchings being stacked, outside the rotor punching
Several positioning protrusion are formed on edge, uniform intervals are set on rotor punching several positioning protrusion in a ring, the convex
Fluting of the opening towards rotor punching outer circumferential is formed on rising, the fluting axially penetrates through the convex along rotor punching
It rises, magnet steel is set 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 several
The appearance glue protrusion extended to outer circumferential, magnet steel coordinates between two neighboring positioning protrusion, so that a part of inner face of magnet steel
It is contacted with holding glue protrusion outer rim, so that magnet steel another part inner face is formed with gap with intermarginal outside rotor punching.
4. low magnetism leakage rotor core according to claim 1, it is characterised in that the magnet steel cooperation is 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 |
|---|---|---|---|
| CN201721842278.9U CN207588582U (en) | 2017-12-26 | 2017-12-26 | Low magnetism leakage rotor core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721842278.9U CN207588582U (en) | 2017-12-26 | 2017-12-26 | Low magnetism leakage rotor core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207588582U true CN207588582U (en) | 2018-07-06 |
Family
ID=62739873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721842278.9U Active CN207588582U (en) | 2017-12-26 | 2017-12-26 | Low magnetism leakage rotor core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207588582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968503A (en) * | 2017-12-26 | 2018-04-27 | 横店集团英洛华电气有限公司 | Low magnetism leakage rotor core |
-
2017
- 2017-12-26 CN CN201721842278.9U patent/CN207588582U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968503A (en) * | 2017-12-26 | 2018-04-27 | 横店集团英洛华电气有限公司 | Low magnetism leakage rotor core |
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