CN202014176U - Brushless direct current motor rotor - Google Patents
Brushless direct current motor rotor Download PDFInfo
- Publication number
- CN202014176U CN202014176U CN2011200713829U CN201120071382U CN202014176U CN 202014176 U CN202014176 U CN 202014176U CN 2011200713829 U CN2011200713829 U CN 2011200713829U CN 201120071382 U CN201120071382 U CN 201120071382U CN 202014176 U CN202014176 U CN 202014176U
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- CN
- China
- Prior art keywords
- rotor
- motor
- motor rotor
- brushless
- direct current
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- 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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Abstract
The utility model relates to a motor rotor, and specifically provides a brushless direct current motor rotor, the structure of which comprises a rotor core, wherein the center of the rotor core is provided with a motor shaft hole, magnetic steel sheets are fixed on the excircle surface of the rotor core via screws, and two side surfaces of the rotor core and vertical to the excircle surface are provided with air vents. Compared with the prior art, the brushless direct current motor rotor has the characteristics of reasonable design, simple structure, convenient manufacturing, and long service lifetime.
Description
Technical field
The utility model relates to a kind of rotor, specifically provides a kind of brushless DC motor rotor.
Background technology
Rotor under the prior art, especially brushless DC motor rotor, it has following weak point: 1, traditional brushless DC motor rotor material adopts 0.1～0.2MM silicon steel sheet to be formed by stacking; Its silicon steel sheet thickness requirement precision is very strict, processing difficulties; And silicon steel sheet stack processing technology complexity; 2, traditional brushless dc inboard rotor all is to adopt straight hole to ventilate, and increases air flows and plays thermolysis, its DeGrain; 3, traditional brushless DC motor rotor changes core because material and processing characteristics are made, and magnet steel can only adopt simple fixing means to install; When its method was heated demagnetization and high speed rotating at motor, dropping situations appearred in magnet steel easily, and making motor damage fault can not use.
Summary of the invention
The utility model is at above problem, a kind of brushless DC motor rotor is provided, it is by changing the rotor profile structure, change the magnet steel installation method, traditional brushless DC motor rotor inner heat is fast, heat radiation is difficult thereby solve, and makes machine operation temperature height, operating efficiency descends, because of motor internal temperature height, make problems such as the aging easily demagnetization of magnet steel easily comes off, and improve motor useful life.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of brushless DC motor rotor, comprise that rotor changes core, described rotor changes the core center and is provided with motor axis hole, is fixed with magnetic links by screw on the periphery of described rotor commentaries on classics core, all is provided with ventilation hole on two sides of the vertical periphery of described rotor commentaries on classics core.
Ventilation hole is that fan is lobate.
A kind of brushless DC motor rotor of the present utility model, its its shape of screw type ventilation hole such as electric wind flabellum; When motor shaft drives the rotation of rotor commentaries on classics core, just, a small-sized fans rotating as being housed in motor, the quickening air enters from the ventilation hole of motor loam cake, swiftly flowing wind is discharged from motor bonnet ventilation hole, reach the effect that reduces the motor internal temperature, its radiating effect is far longer than traditional type straight hole formula; Reduce the motor internal working temperature thereby reach control, improve the motor working efficiency and the purpose in useful life.
The position, hole that screws on the rotor circumference face adopts the mechanical system screw to fix, and coming off also can not appear in the magnet steel demagnetization high speed rotating that is heated, thereby guarantees that motor is not fragile, and reaches the purpose that increases the service life.
In sum, a kind of brushless DC motor rotor of the present utility model, it has characteristics reasonable in design, simple in structure, easy to make, that useful life is of a specified duration.
Description of drawings
Fig. 1 is a kind of structural representation of brushless DC motor rotor;
Fig. 2 is a kind of user mode figure of brushless DC motor rotor.
Embodiment
Below in conjunction with the drawings and specific embodiments a kind of brushless DC motor rotor of the present utility model is further described.
As shown in Figure 1, a kind of brushless DC motor rotor, comprise that rotor changes core 1, described rotor changes core 1 center and is provided with motor axis hole 2, be fixed with magnetic links 4 by screw 3 on the periphery of described rotor commentaries on classics core 1, all be provided with ventilation hole 6 on two sides 5 of the vertical periphery of described rotor commentaries on classics core 1.
In the present embodiment, ventilation hole 6 is that fan is lobate.
As shown in Figure 2, when motor shaft 7 drives 1 rotation of rotor commentaries on classics core, just, a small-sized fans rotating as being housed in motor, the quickening air enters from the ventilation hole 9 of motor loam cake 8, swiftly flowing wind is discharged from the ventilation hole 11 of motor bonnet 10, reaches the effect that reduces the motor internal temperature
Above-described embodiment, the utility model embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection range of the present utility model.
Claims (2)
1. brushless DC motor rotor, comprise that rotor changes core, described rotor changes the core center and is provided with motor axis hole, it is characterized in that, be fixed with magnetic links by screw on the periphery of described rotor commentaries on classics core, all be provided with ventilation hole on two sides of the vertical periphery of described rotor commentaries on classics core.
2. a kind of brushless DC motor rotor according to claim 1 is characterized in that, described ventilation hole is that fan is lobate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200713829U CN202014176U (en) | 2011-03-17 | 2011-03-17 | Brushless direct current motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200713829U CN202014176U (en) | 2011-03-17 | 2011-03-17 | Brushless direct current motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202014176U true CN202014176U (en) | 2011-10-19 |
Family
ID=44784787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200713829U Expired - Fee Related CN202014176U (en) | 2011-03-17 | 2011-03-17 | Brushless direct current motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202014176U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186819A (en) * | 2014-06-17 | 2015-12-23 | 广东美芝制冷设备有限公司 | Rotor end cover of outer-rotor-type motor and outer-rotor-type motor with rotor end cover |
| CN110556948A (en) * | 2018-05-31 | 2019-12-10 | 本田技研工业株式会社 | rotor of rotating electric machine, method for manufacturing same, and rotating electric machine |
-
2011
- 2011-03-17 CN CN2011200713829U patent/CN202014176U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186819A (en) * | 2014-06-17 | 2015-12-23 | 广东美芝制冷设备有限公司 | Rotor end cover of outer-rotor-type motor and outer-rotor-type motor with rotor end cover |
| CN105186819B (en) * | 2014-06-17 | 2018-01-23 | 广东美芝制冷设备有限公司 | The rotor endcap of external rotor electric machine and there is its external rotor electric machine |
| CN110556948A (en) * | 2018-05-31 | 2019-12-10 | 本田技研工业株式会社 | rotor of rotating electric machine, method for manufacturing same, and rotating electric machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111019 Termination date: 20130317 |