CN203562861U - External rotor motor - Google Patents
External rotor motor Download PDFInfo
- Publication number
- CN203562861U CN203562861U CN201320756594.XU CN201320756594U CN203562861U CN 203562861 U CN203562861 U CN 203562861U CN 201320756594 U CN201320756594 U CN 201320756594U CN 203562861 U CN203562861 U CN 203562861U
- Authority
- CN
- China
- Prior art keywords
- rotor
- stator
- rotating shaft
- motor
- external
- 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
Links
Images
Landscapes
- Motor Or Generator Cooling System (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses an external rotor motor. The external rotor motor comprises a rotor, a stator and a rotating shaft, the rotating shaft is installed in the center of the rotor and cooperated with the stator through bearings installed at two ends of a stator center hole, the rotating shaft and the rotor are integrated by casting, and an outer end surface and an outer circumference of the rotor are both provided with radiating grooves. The rotating shaft and the rotor are integrated by casting, structure is compact, and operation balance and stability of the motor are improved; and the rotor is provided with the radiating grooves, by utilization of rotation of the rotor, airflow flows in the radiating grooves to take heat away, and efficiency of the motor is improved.
Description
Technical field
The utility model relates to a kind of motor, especially a kind of external rotor electric machine.
Background technology
Existing motor product, by the arrangement of stator and rotor, can be divided into inner rotor type motor and external-rotor motor.Inner rotor type motor rotor is rotatably installed in stator interior, and external-rotor motor rotor is rotatably installed in stator outside.In a lot of application scenarios, external rotor electric machine, because its cooling performance is undesirable, causes motor performance to be affected, and efficiency can not maximize.
Utility model content
The utility model technical issues that need to address are to provide a kind of good cooling results, the external rotor electric machine that electric efficiency is high.
For addressing the above problem, technical solution adopted in the utility model is: a kind of external rotor electric machine, comprise rotor, stator and rotating shaft, its shaft is arranged on rotor center, and coordinate with stator by the bearing that is arranged on two ends, stator center hole, described rotating shaft and rotor are integrated casting, on the outer face of rotor He on excircle, are equipped with radiating groove.
Radiating groove on this novel outer face that is arranged on rotor is parabola shaped or circular arc.
Radiating groove on this novel excircle that is further arranged on rotor is spirality.
The beneficial effect that adopts technique scheme to produce is: the utility model rotating shaft and rotor are integrated casting, compact conformation, balance and the stability of motor rotation have been strengthened, radiating groove is set on rotor, utilize the rotation of rotor, air-flow is flowed in radiating groove, take away heat, improve the efficiency of motor.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model rotor end-face top view structural representation;
Wherein: 1, stator, 2, rotor, 3, radiating groove, 4, rotating shaft.
Embodiment
Below in conjunction with accompanying drawing, utility model is described in further detail: as depicted in figs. 1 and 2, this Novel external rotor motor comprises rotor 2, stator 1 and rotating shaft 4, its shaft 4 is arranged on rotor center, and be cast into one with rotor, it coordinates with stator by the bearing that is arranged on two ends, stator center hole, make its concentricity better, stability after having assembled is better, balance and the stability of motor rotation have been strengthened, in order to improve the performance of motor, increase work efficiency, on the outer face of rotor He on excircle, be equipped with radiating groove, increase cooling effect, to increase work efficiency.
Through test of many times, inventor determines that when the radiating groove on this novel outer face that is arranged on rotor is parabola shaped or circular arc, radiating effect is better.When the radiating groove on this novel excircle that is arranged on rotor is spirality simultaneously, radiating effect is better.
Claims (3)
1. an external rotor electric machine, comprise rotor (2), stator (1) and rotating shaft (4), its shaft is arranged on rotor center, and coordinate with stator by the bearing that is arranged on two ends, stator center hole, it is characterized in that: described rotating shaft and rotor are integrated casting, on the outer face of rotor He on excircle, be equipped with radiating groove (3).
2. external rotor electric machine according to claim 1, the radiating groove (3) that it is characterized in that being arranged on the outer face of rotor is parabola shaped or circular arc.
3. external rotor electric machine according to claim 1, the radiating groove (3) that it is characterized in that being arranged on the excircle of rotor is spirality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320756594.XU CN203562861U (en) | 2013-11-26 | 2013-11-26 | External rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320756594.XU CN203562861U (en) | 2013-11-26 | 2013-11-26 | External rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203562861U true CN203562861U (en) | 2014-04-23 |
Family
ID=50512559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320756594.XU Expired - Fee Related CN203562861U (en) | 2013-11-26 | 2013-11-26 | External rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203562861U (en) |
-
2013
- 2013-11-26 CN CN201320756594.XU patent/CN203562861U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203788057U (en) | Explosive-proof energy saving motor | |
| CN202798336U (en) | Three-phase asynchronous motor heat dissipation fan blade | |
| CN208955767U (en) | A kind of outer rotor brushless motor | |
| CN204928437U (en) | Novel wind path cooling structure | |
| CN203562861U (en) | External rotor motor | |
| CN204267368U (en) | A kind of Wind Volume axial fan | |
| CN203589902U (en) | External rotor motor | |
| CN202940663U (en) | Winding end part fixing structure with wind shielding function | |
| CN203589868U (en) | External rotor motor | |
| CN203722444U (en) | Stator of synchronous motor | |
| CN203219090U (en) | Novel low-noise and low-vibration electromotor | |
| CN203368206U (en) | Heat radiation motor end cap | |
| CN204267367U (en) | A kind of efficient axis flow fan | |
| CN105222298A (en) | Fan coil units drags multiple-motor mechanism with one | |
| CN204721181U (en) | A kind of novel mechanical motor | |
| CN204299893U (en) | A kind of low power consumption axial fan | |
| CN203871953U (en) | Plastic package motor | |
| CN202918156U (en) | Squirrel-cage motor | |
| CN204267331U (en) | A kind of large power shaft flow fan | |
| CN202673716U (en) | Internally arranged motor pipeline exhaust fan | |
| CN203289292U (en) | Ultra-high efficiency three-phase asynchronous motor | |
| CN203086251U (en) | Low-voltage large-power variable frequency motor | |
| CN203850989U (en) | High speed motor | |
| CN202183647U (en) | Air channel structure of motor | |
| CN206060390U (en) | High speed rotor of motor centrifugal radiation structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20151126 |