CN202840893U - High-speed permanent magnet brushless direct current motor - Google Patents
High-speed permanent magnet brushless direct current motor Download PDFInfo
- Publication number
- CN202840893U CN202840893U CN 201220528944 CN201220528944U CN202840893U CN 202840893 U CN202840893 U CN 202840893U CN 201220528944 CN201220528944 CN 201220528944 CN 201220528944 U CN201220528944 U CN 201220528944U CN 202840893 U CN202840893 U CN 202840893U
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- CN
- China
- Prior art keywords
- rotor
- permanent magnet
- magnet brushless
- direct current
- speed permanent
- 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.)
- Expired - Fee Related
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- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a high-speed permanent magnet brushless direct current motor. The high-speed permanent magnet brushless direct current motor comprises a machine shell, a stator core, an annular three-phase strand wire winding and a rotor, wherein the annular three-phase strand wire winding is twined on the stator core. The rotor is a hollow rotating shaft and a permanent magnet is arranged inside a cavity of the rotor. On one hand, the weight of the rotor and the energy consumption are reduced; on the other hand, the permanent magnet is embedded into the rotor, and therefore the magnetic force of the rotor and the energy conversion rate are improved.
Description
Technical field
The utility model relates to a kind of motor, relates in particular to a kind of high-speed permanent-magnet brushless DC motor.
Background technology
At present, the application of motor is ubiquitous, and so-called motor namely is that electric power is converted into power, and most critical is that conversion efficiency is wanted height.General motor is by to the winding coil electricity, generates an electromagnetic field behind the coil electricity, and the magnetic field interaction with rotor self is rotated rotor, thereby produces machine power.But the transfer ratio of motor in the market is not high, although there is the high cost of some conversion efficiencies high yet.
Summary of the invention
It is a kind of simple in structure, with low cost that the utility model provides, the high-speed permanent-magnet brushless DC motor that energy transformation ratio is high.
A kind of high-speed permanent-magnet brushless DC motor mainly comprises casing, stator core, is wound in the annular three-phase twisted wire winding in the stator core, and rotor, described rotor are the rotating shaft of hollow, and the cavity of rotating shaft is embedded with permanent magnet.The rotating shaft design of hollow, reduce raw material on the one hand, alleviate on the other hand the weight of rotating shaft, can reduce the energy loss of rotating shaft itself, cavity is embedded with the magnetic field force that permanent magnet can strengthen rotor itself, can improve the conversion ratio of electric power under the electric power of equal-wattage.
Described permanent magnet shape size is consistent with the cavity of rotating shaft.This structure can make permanent magnet tightly cooperate with the rotating shaft of hollow, can not rock in High Rotation Speed, increases the stability of motor.
Description of drawings
Fig. 1 is the schematic cross-section of the utility model high-speed permanent-magnet brushless DC motor;
Embodiment
As shown in Figure 1, the utility model high-speed permanent-magnet brushless DC motor mainly comprises casing 1, stator core 2, is wound in annular three-phase twisted wire winding 4 and rotor in the stator core 2, stator core 2 is fixed in the casing 1, annular three-phase twisted wire winding 4 is wrapped in the stator core 2, wherein said rotor is the rotating shaft 3 of hollow, is embedded with permanent magnet 5 at the cavity of rotating shaft 3.Permanent magnet 5 shape sizes are consistent with the cavity of hollow axle 3.
Claims (2)
1. high-speed permanent-magnet brushless DC motor, mainly comprise casing (1), stator core (2), be wound in the annular three-phase twisted wire winding (4) in the stator core (2), rotor, it is characterized in that described rotor is the rotating shaft (3) of hollow, the cavity of rotating shaft (3) is embedded with permanent magnet (5).
2. a kind of high-speed permanent-magnet brushless DC motor as claimed in claim 1, it is characterized in that: described permanent magnet (5) shape size is consistent with the cavity of hollow axle (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220528944 CN202840893U (en) | 2012-09-30 | 2012-09-30 | High-speed permanent magnet brushless direct current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220528944 CN202840893U (en) | 2012-09-30 | 2012-09-30 | High-speed permanent magnet brushless direct current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202840893U true CN202840893U (en) | 2013-03-27 |
Family
ID=47952494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220528944 Expired - Fee Related CN202840893U (en) | 2012-09-30 | 2012-09-30 | High-speed permanent magnet brushless direct current motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202840893U (en) |
-
2012
- 2012-09-30 CN CN 201220528944 patent/CN202840893U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160914 Address after: 311800, Zhejiang City, Shaoxing province Zhuji City Street Town Industrial Zone Patentee after: Zhejiang Zhongsen electromechanical Co. Ltd. Address before: 311800, Zhejiang Province, Zhuji City, north second docking Town, Hangzhou North Road (founded electrical appliance company) Patentee before: Zhejiang Jianda Electrical Appliance Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20150930 |
|
| EXPY | Termination of patent right or utility model |