CN209233590U - A kind of high speed permanent magnet motor rotor structure - Google Patents
A kind of high speed permanent magnet motor rotor structure Download PDFInfo
- Publication number
- CN209233590U CN209233590U CN201920108880.2U CN201920108880U CN209233590U CN 209233590 U CN209233590 U CN 209233590U CN 201920108880 U CN201920108880 U CN 201920108880U CN 209233590 U CN209233590 U CN 209233590U
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- Prior art keywords
- rotor
- high speed
- permanent magnet
- rotor core
- protection set
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Abstract
The utility model discloses a kind of high speed permanent magnet motor rotor structures; including rotor core and rotor protection set; multiple be spaced apart and axially extending magnetic slot is offered in the circumferential end surfaces of the rotor core; magnet steel is fixed in the magnetic slot, the rotor protection set is closely set on the outer circumference surface of the rotor core；The advantages of magnet steel of the utility model is embedded, then installs rotor protection set additional outside rotor core, that is, remains the high inductance of embedded design, high weak magnetic property, in turn ensures the rotor mechanical strength under high speed.
Description
Technical field
The utility model relates to technical field of motors, and in particular to a kind of high speed permanent magnet motor rotor structure.
Background technique
High-speed permanent magnet motor generallys use two kinds of rotor structure forms at present: a kind of to add turning for protective case for surface-mount type magnet steel
Minor structure.Second is the design of embedded magnetic steel rotor.Certain limitation: 1. surface-mounted rotors is individually present in both designs
For structure since inductance is smaller, motor high speed weak magnetic ability is poor.2. embedded rotor structure inductance is larger, high speed weak magnetic property
It is good, but since the ratio that rotor magnetic bridge (in order to every magnetic) is usually done is relatively thin, the rotor under the influence of high speed centrifugation power, vibration at high speed
Mechanical strength is inadequate.In order to obtain high mechanical strength, magnetic bridge must be just thickeied, but blocked up magnetic bridge will lead to permanent magnet again
Leakage field is excessive, limits the freedom degree of design of electrical motor, while influencing electric efficiency.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of high-speed permanent magnetic in view of the above shortcomings of the prior art
Motor rotor construction, this high speed permanent magnet motor rotor structure magnet steel be it is embedded, then install rotor additional outside rotor core
The advantages of protective case, that is, remain the high inductance of embedded design, high weak magnetic property in turn ensures that the lower rotor of high speed is mechanical by force
Degree.
To realize the above-mentioned technical purpose, the technical solution that the utility model is taken are as follows:
A kind of high speed permanent magnet motor rotor structure, including rotor core and rotor protection set, the circumference of the rotor core
Offered on end face it is multiple be spaced apart and axially extending magnetic slot, magnet steel is fixed in the magnetic slot, the rotor is protected
Sheath is closely set on the outer circumference surface of the rotor core.
As the further improved technical solution of the utility model, the magnet steel is fixedly connected by glue with magnetic slot.
As the further improved technical solution of the utility model, the outer circumference surface of the rotor protection set and rotor core
Interference fit.
As the further improved technical solution of the utility model, the rotor protection set uses carbon fiber casing.
The utility model has the following beneficial effects: the magnet steel of the utility model is embedded, then installed additional outside rotor core
Rotor protection set (such as carbon fiber casing).It remains the high inductance of embedded design, the advantages of high weak magnetic property, in turn ensures
Rotor mechanical strength under high speed.
Detailed description of the invention
Fig. 1 is the sectional view of the utility model.
Specific embodiment
Specific embodiment of the present utility model is further illustrated below according to Fig. 1:
Referring to Fig. 1, a kind of high speed permanent magnet motor rotor structure, including rotor core 1 and rotor protection set 2, the rotor
Multiple be spaced apart and axially extending magnetic slot 3, magnet steel 4 are embedded in magnetic slot 3 simultaneously is offered in the circumferential end surfaces of iron core 1
It is fixedly connected with magnetic slot 3, the rotor protection set 2 is closely set on the outer circumference surface of the rotor core 1.
In the present embodiment, the magnet steel 4 is fixedly connected by glue with magnetic slot 3.
In the present embodiment, the outer circumference surface of the rotor protection set 2 and rotor core 1 is interference fitted.
In the present embodiment, the rotor protection set 2 uses carbon fiber casing.
In high-speed permanent magnet motor design, biggish inductance is needed to improve weak magnetic property, while needing to guarantee rotor again
Intensity.The present embodiment is on the basis of traditional embedded design, then installs rotor protection additional and cover 2(such as carbon fiber casing etc.).In this way,
It remains the high inductance of embedded design, the advantages of high weak magnetic property, in turn ensures the rotor mechanical strength under high speed.
The protection scope of the utility model includes but is not limited to embodiment of above, and the protection scope of the utility model is to weigh
Subject to sharp claim, replacement, deformation, the improvement that those skilled in the art that any pair of this technology is made is readily apparent that are each fallen within
The protection scope of the utility model.
Claims (4)
1. a kind of high speed permanent magnet motor rotor structure, which is characterized in that described including rotor core (1) and rotor protection set (2)
Offered in the circumferential end surfaces of rotor core (1) it is multiple be spaced apart and axially extending magnetic slot (3), the magnetic slot (3)
It is inside fixed with magnet steel (4), the rotor protection set (2) is closely set on the outer circumference surface of the rotor core (1).
2. high speed permanent magnet motor rotor structure according to claim 1, which is characterized in that the magnet steel (4) passes through glue
It is fixedly connected with magnetic slot (3).
3. high speed permanent magnet motor rotor structure according to claim 1, which is characterized in that the rotor protection set (2) with
The outer circumference surface of rotor core (1) is interference fitted.
4. high speed permanent magnet motor rotor structure according to claim 3, which is characterized in that the rotor protection set (2) is adopted
With carbon fiber casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920108880.2U CN209233590U (en) | 2019-01-23 | 2019-01-23 | A kind of high speed permanent magnet motor rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920108880.2U CN209233590U (en) | 2019-01-23 | 2019-01-23 | A kind of high speed permanent magnet motor rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209233590U true CN209233590U (en) | 2019-08-09 |
Family
ID=67510701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920108880.2U Active CN209233590U (en) | 2019-01-23 | 2019-01-23 | A kind of high speed permanent magnet motor rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209233590U (en) |
-
2019
- 2019-01-23 CN CN201920108880.2U patent/CN209233590U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 315000 No. 308, Xiaogang Anju Road, Beilun District, Ningbo City, Zhejiang Province Patentee after: Ningbo Feishi Technology Co., Ltd Address before: 315803 308 Anju Road, Xiaogang, Beilun District, Ningbo, Zhejiang Patentee before: PHASE MOTION CONTROL NINGBO Ltd. |
|
| CP03 | Change of name, title or address |