CN2901675Y - Heat radiation structure with axial flow fan for motor inner rotor - Google Patents
Heat radiation structure with axial flow fan for motor inner rotor Download PDFInfo
- Publication number
- CN2901675Y CN2901675Y CN 200520135835 CN200520135835U CN2901675Y CN 2901675 Y CN2901675 Y CN 2901675Y CN 200520135835 CN200520135835 CN 200520135835 CN 200520135835 U CN200520135835 U CN 200520135835U CN 2901675 Y CN2901675 Y CN 2901675Y
- Authority
- CN
- China
- Prior art keywords
- fan
- motor
- fan blade
- axial flow
- flow fan
- 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 - Lifetime
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Abstract
The utility model relates to a heat emission device with axial fan of motor rotor, which comprises a wheel hub, a pressure face, a pressure back and a fan blade. When the motor is at work, the motor drives the fan blade connected with the motor to rotate at a speed given by the motor, which produces a pressure difference between front and back of the fan blade and drives air around the fan blade to move along the axial direction of the motor. Airflow produced by the fan forms an axial flow fan on the axial direction of the fan rotating center. The airflow blows all parts of the winding overhang, which is good in heat emission effect and decreases temperature. The axial flow fan is made of plastic, which is of lower cost comparing with cast aluminum squirrel cage rotor fan blade.
Description
Technical field: the utility model relates to the radiator structure that a kind of motor internal rotor has aerofoil fan.
Technical background: in the prior motor structure, the fan of rotor is used for internal heat dissipating, reduces electric machine temperature rise.Traditional method is a cast-in aluminum squirrel cage rotor fan blade, for simplified structure and manufacturing process, reduce cost, then the end ring (2-1) of fan blade (2-2) with mouse cage is made of one with sliver, when casting by the one-shot forming of aluminium liquid.The shape of cast-in aluminum squirrel cage rotor fan blade and angle adopt the straight sheet of centrifugal radial, and this is a kind of traditional mature structure, and its advantage is that structure, simple shape, castability are good, and is applicable to reversible rotating motor.But there is shortcoming in traditional structure, because the blast that the straight sheet fan blade of centrifugal radial produces is low, and the air stream outlet of fan blade is in the inwall of stator winding end, and the air-flow action space is little, windage is big, thereby has limited cooling air delivery, and radiating effect is not obvious.
The purpose of this utility model provides the radiator structure that a kind of motor internal rotor has aerofoil fan, for the flow that increases cooling air with further reduction electric machine temperature rise, and the radiator structure of a kind of aerofoil fan that separates with motor cast-in aluminum squirrel cage rotor of design, it is axial that the air-flow that fan produces is formed on the pivot of fan, air-flow acts on each position of winding overhang, the air-flow action space is big, and radiating effect is obvious.
Summary of the invention: the purpose of this utility model is to realize like this, this radiator structure is made up of wheel hub, pressure face, the pressure back side, fan blade, it is characterized in that: fan design is become to have a plurality of fan blade, link to each other by wheel hub with machine shaft, drive fan blade and rotate with rotating shaft.
The utility model is simple in structure, easy to operate, compares with traditional cast-in aluminum squirrel cage rotor fan blade, can effectively reduce electric machine temperature rise, saves cast aluminium simultaneously, reduces cost.
Description of drawings: Fig. 1: axial flow fan structure schematic diagram
Fig. 2: cast-in aluminum squirrel cage rotor blade structure schematic diagram
1-1 wheel hub 1-2 pressure face 1-3 pressure back side 1-4 blade
2-1 end ring 2-2 fan blade
Concrete execution mode: the utility model is further described below in conjunction with accompanying drawing
In the drawings, there is wheel hub 1-1 at a kind of motor internal rotor of the utility model center of having the radiator structure of aerofoil fan.Described wheel hub is the part that is connected with machine shaft, also is the pivot of aerofoil fan.Around the wheel hub outer peripheral face several fan blade 1-4 is arranged.Described fan blade is when the rotation of aerofoil fan, and the guiding air produces air-flow.
Motor-driven is rotated axial-flow leaf, because the pressure face 1-2 of fan blade and pressure back side 1-3 form action of pressure, the fluid of upstream side is to dirty side flow.Promptly owing to the rotation of aerofoil fan, the air of aerofoil fan rear side is side flow forward.
Because the change of airflow direction, make air flow outlet directly blow to each position of winding overhang, increased the flow of air-flow, improve radiation effect of motor, and reduced the temperature rise of motor effectively.
Claims (1)
1, a kind of motor internal rotor has the radiator structure of aerofoil fan, formed by wheel hub (1-1), pressure face (1-2), the pressure back side (1-3), fan blade (1-4), it is characterized in that: fan design is become to have a plurality of fan blade (1-4), link to each other by wheel hub (1-1) with machine shaft, drive fan blade and rotate with rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520135835 CN2901675Y (en) | 2005-11-10 | 2005-11-10 | Heat radiation structure with axial flow fan for motor inner rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520135835 CN2901675Y (en) | 2005-11-10 | 2005-11-10 | Heat radiation structure with axial flow fan for motor inner rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2901675Y true CN2901675Y (en) | 2007-05-16 |
Family
ID=38085839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520135835 Expired - Lifetime CN2901675Y (en) | 2005-11-10 | 2005-11-10 | Heat radiation structure with axial flow fan for motor inner rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2901675Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052220A (en) * | 2014-06-23 | 2014-09-17 | 朱虹斐 | Asynchronous motor high in heat dissipation performance |
-
2005
- 2005-11-10 CN CN 200520135835 patent/CN2901675Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052220A (en) * | 2014-06-23 | 2014-09-17 | 朱虹斐 | Asynchronous motor high in heat dissipation performance |
| CN104052220B (en) * | 2014-06-23 | 2016-05-25 | 国网山东省电力公司阳谷县供电公司 | High heat radiation asynchronous machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070516 |
|
| EXPY | Termination of patent right or utility model |