CN2399879Y - External rotor electromachine - Google Patents
External rotor electromachine Download PDFInfo
- Publication number
- CN2399879Y CN2399879Y CN 99240288 CN99240288U CN2399879Y CN 2399879 Y CN2399879 Y CN 2399879Y CN 99240288 CN99240288 CN 99240288 CN 99240288 U CN99240288 U CN 99240288U CN 2399879 Y CN2399879 Y CN 2399879Y
- Authority
- CN
- China
- Prior art keywords
- external rotor
- electric machine
- end cap
- motor shaft
- bearing
- 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
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to an external rotor electric machine which mainly solves the problem of big outer diameter of the electric machine. The utility model comprises an end cover, an external rotor, a shaft of the electric machine, a bearing and a stator which is fixed on the shaft of the electric machine; one end of the end face of the end cover is connected with the shaft of the electric machine through the bearing. The utility model is characterized in that the other end of the end cover is fixed with the external rotor.
Description
The utility model relates to a kind of external rotor electric machine.
In prior art, the external rotor electric machine that uses in the centrifugal blower is built in the impeller, because the restriction of blower fan profile, want the noise of complete machine is reduced relatively difficulty of 0.5-1dB (A) again, and traditional external rotor electric machine all is the external rotor electric machine of band shell, its motor external diameter is bigger, make fan inlet area smaller, air velocity is bigger, the fan noise height, and the corner angle of electric motor end cap are many in addition, after making inlet air flow bump against end cap, change original flow direction, air-flow produces turbulent flow, causes complete blower noise height, efficient to reduce.
The purpose of this utility model provides the smaller external rotor electric machine of a kind of external diameter.
The utility model is made up of end cap, external rotor, motor shaft, bearing and stator, and stator is fixed on the motor shaft, and an end of end cap end face links to each other with motor shaft by bearing, it is characterized in that: the other end and the external rotor of end cap fix.
Because the utility model is made up of end cap, external rotor, motor shaft, bearing and stator, stator is fixed on the motor shaft, one end of end cap end face links to each other with motor shaft by bearing, the other end and the external rotor of end cap fix, so the utility model has been cancelled the shell of traditional external rotor electric machine, thereby make the external diameter of external rotor electric machine compare less with the conventional motors of same specification.
Below in conjunction with accompanying drawing the utility model is elaborated,
Accompanying drawing is a structural representation of the present utility model,
1 expression stator among the figure, stator is fixed on the motor shaft 2, one end of end cap 6 end faces links to each other with motor shaft by bearing 3, the other end of end cap fixes by concealed type screw and external rotor 4, external rotor is made by silicon steel sheet, and in order to reduce the corner angle of electric motor end cap, the conical surface of end cap becomes circular-arc with the connection place on the face of cylinder of the end face of end cap and end cap, in order to fix, be fixed with flange 5 at the outer surface of external rotor with the product that is driven.
Claims (4)
1, a kind of external rotor electric machine comprises end cap, external rotor, motor shaft, bearing and stator, and stator is fixed on the motor shaft, and end face one end of end cap links to each other with motor shaft by bearing, it is characterized in that: the other end and the external rotor of end cap fix.
2, a kind of external rotor electric machine according to claim 1, it is characterized in that: the outer surface at external rotor is fixed with flange.
3, a kind of external rotor electric machine according to claim 1, it is characterized in that: external rotor is made by silicon steel sheet.
4, according to claim 1,2 or 3 described a kind of external rotor electric machines, it is characterized in that: the end face of end cap becomes circular-arc with the connection place of the conical surface of end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99240288 CN2399879Y (en) | 1999-11-11 | 1999-11-11 | External rotor electromachine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99240288 CN2399879Y (en) | 1999-11-11 | 1999-11-11 | External rotor electromachine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2399879Y true CN2399879Y (en) | 2000-10-04 |
Family
ID=34027358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99240288 Expired - Fee Related CN2399879Y (en) | 1999-11-11 | 1999-11-11 | External rotor electromachine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2399879Y (en) |
-
1999
- 1999-11-11 CN CN 99240288 patent/CN2399879Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2773358Y (en) | High-speed magnetic-suspension centrifugal blower | |
| IT9020323A1 (en) | STATOR ASSEMBLY OF FAN FOR HEAT EXCHANGER | |
| CN100386529C (en) | Blower vane wheel for air conditioner | |
| CN2399879Y (en) | External rotor electromachine | |
| CN202811428U (en) | Multi-blade centrifugal fan | |
| CN207848024U (en) | Seperated molding mixed flow turbine | |
| CN205714835U (en) | High-speed blower | |
| CN2359508Y (en) | Centrifugal fan casing | |
| CN1789728A (en) | Rotating rear guide vane of axial flow fan | |
| CN2453174Y (en) | Combination type centrifugal fan | |
| CN2217117Y (en) | Double suction type centrifugal wind motor | |
| CN206770249U (en) | A kind of centrifugal fan for reducing motor noise | |
| CN2408278Y (en) | Centrifugal fan | |
| CN220151568U (en) | Small-sized double-blade isolation type centrifugal fan | |
| CN2262128Y (en) | Front bended sweepforward assembled axial-flow blower | |
| CN2506799Y (en) | Centrifugal blowing fan | |
| CN219953733U (en) | Integrated wind wheel | |
| CN2346975Y (en) | Energy saving, low noise fan | |
| CN216872987U (en) | Air duct boundary layer supercharging structure in motor and high-speed motor | |
| CN2317434Y (en) | Booster, ventilating and air exhausting special-purpose fan | |
| CN201461498U (en) | Motor type roller blower | |
| CN2397293Y (en) | Rope type flexible shaft centrifugal fan | |
| CN2224304Y (en) | Drum-type blast | |
| CN2252258Y (en) | Diagonal flow fan | |
| CN2209232Y (en) | Rotary fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |