CN203645515U - External rotor permanent magnet synchronous motor of industrial big fan - Google Patents
External rotor permanent magnet synchronous motor of industrial big fan Download PDFInfo
- Publication number
- CN203645515U CN203645515U CN201320844295.1U CN201320844295U CN203645515U CN 203645515 U CN203645515 U CN 203645515U CN 201320844295 U CN201320844295 U CN 201320844295U CN 203645515 U CN203645515 U CN 203645515U
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- Prior art keywords
- fixed
- big fan
- industrial big
- rotating shaft
- motor
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- Expired - Lifetime
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
An external rotor permanent magnet synchronous motor of an industrial big fan comprises a stator iron core and magnetic steel. A rotating shaft is fixedly provided with a shaft sleeve. A wheel hub support is fixed to the shaft sleeve. The stator iron core sleeves the wheel hub support in an interference fit manner. The magnetic steel is fixedly adhered to the inner wall of a motor housing. A rotating disk housing cover is fixed to an outer ring of a front bearing. An inner ring of the front bearing is fixed to the rotating shaft. A rear end cover is fixed to an outer ring of a rear bearing. An inner ring of the rear bearing is fixed to the rotating shaft. Blades of the industrial big fan are fixed to blade connecting boards through bolts. The blade connecting boards are fixed to the rotating disk housing cover through screws. The motor housing is cylindrical. The upper end of the motor housing is fixed to the rotating disk housing cover through screws. The lower end of the motor housing is fixed to the rear end cover through screws. By adopting the external rotor permanent magnet synchronous motor of the industrial big fan, the size of the motor part of the industrial big fan is substantially reduced, the electromagnetic noise is low, the power density is high, the force energy index is good, the motor efficiency is high, the rotational inertia is high, and a speed reducer is not needed.
Description
Technical field:
The utility model relates to technical field of motors, more specifically to a kind of external rotor synchronous machine that is exclusively used in industrial big fan.
Background technology:
As shown in Figure 1, the motor of current industrial big fan on the market all adopts AC induction motor, and it is upper that its motor A2 is fixed on motor hanger A1, and motor A2 rotates by decelerator impeller A3, is fixed with big fan blade A4 in impeller A 3.Its weak point is: 1, motor volume is large, and energy index is low, and power factor is low, and speed adjusting performance is poor, has adopted decelerator simultaneously.2, it need to be design of electrical motor hanger specially, and motor weight is large simultaneously, makes industrial big fan piece volumes large, and transportation and installation are all very inconvenient.
Utility model content:
The purpose of this utility model is exactly the deficiency for prior art, and provide a kind of industrial big fan external rotor permanent magnet synchronous machine, it has dwindled the volume of industrial big fan motor part greatly, dexterously motor and runner are combined, make industrial big fan motor volume little, install and brought facility for transportation.
Technology solution of the present utility model is as follows:
A kind of industrial big fan external rotor permanent magnet synchronous machine, comprises stator core and magnet steel, is fixed with axle sleeve in rotating shaft, and wheel hub holder is fixed on axle sleeve, and stator core interference fit sleeve is on wheel hub holder, and bonding magnetic steel is fixed on the inwall of motor housing;
Rotating disk cap is fixed on the outer ring of fore bearing, the inner ring of fore bearing is fixed in rotating shaft, rear end cap is fixed on the outer ring of rear bearing, the inner ring of rear bearing is fixed in rotating shaft, industrial big fan blade is bolted on blade connecting plate, and blade connecting plate is fixed by screws on rotating disk cap;
Motor housing is cylinder-shaped, and the upper end of motor housing is fixed together by screw and rotating disk cap, and the lower end of motor housing is fixed together by screw and rear end cap.
The groove number of described stator core is 36 grooves, and magnet steel quantity is 16 pairs.
Gap between described stator core and magnet steel is 1mm.
Described rotating shaft is hollow pipe, and the lower end of rotating shaft is fixed with lampshade, and electricity-saving lamp is arranged on lampshade, and the power line of electricity-saving lamp is placed in the hollow of rotating shaft.
The beneficial effects of the utility model are:
1, it has dwindled the volume of industrial big fan motor part greatly, dexterously motor and runner is combined, and makes industrial big fan motor volume little, installs and has brought facility for transportation.
2, its electromagnetic noise is low, and power density is high, and energy index is good, and electric efficiency is high, and moment of inertia is large, without decelerator is installed.
Accompanying drawing explanation:
Fig. 1 is the structural representation of prior art;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is that the utility model is installed the structural representation after industrial big fan blade;
Fig. 4 is the structural representation after the utility model installing energy saving lamp.
In figure: 1, rotating shaft; 2, axle sleeve; 3, wheel hub holder; 4, stator core; 5, magnet steel; 6, rotating disk cap; 7, fore bearing; 8, rear bearing; 9, rear end cap; 10, motor housing; 11, industrial big fan blade; 12, blade connecting plate; 13, lampshade; 14, electricity-saving lamp.
Embodiment:
Embodiment: see shown in Fig. 2 to 4, a kind of industrial big fan external rotor permanent magnet synchronous machine, comprise stator core 4 and magnet steel 5, in rotating shaft 1, be fixed with axle sleeve 2, wheel hub holder 3 is fixed on axle sleeve 2, stator core 4 interference fit sleeves are on wheel hub holder 3, and magnet steel 5 is adhesively fixed on the inwall of motor housing 10;
The groove number of described stator core 4 is 36 grooves, and magnet steel 5 quantity are 16 pairs.
Gap between described stator core 4 and magnet steel 5 is 1mm.
Described rotating shaft 1 is hollow pipe, and the lower end of rotating shaft 1 is fixed with lampshade 13, and electricity-saving lamp 14 is arranged on lampshade 13, and the power line of electricity-saving lamp 14 is placed in the hollow of rotating shaft 1.
Operation principle: general external rotor electric machine adopts asynchronous machine mode more, rotor winding needs exciting current to start, so both increased motor volume, increase again the loss of electric machine, cause electric efficiency low, and the speed adjusting performance of asynchronous machine is poor, need to be equipped with deceleration device and could meets general operational requirement.The utility model adopts magnet steel to replace rotor winding, without exciting current, has reduced the loss of electric machine, electric efficiency is improved greatly, and have wider speed adjustable range, can save deceleration device, has reduced electrical machine element, has saved motor manufacturing cost.
When installation, rotating shaft 1 is fixed together with hanger bar, and rotating disk cap 6 rotates, thereby drives the industrial big fan blade 11 being fixed on rotating disk cap 6 to rotate.
Claims (4)
1. an industrial big fan external rotor permanent magnet synchronous machine, comprise stator core (4) and magnet steel (5), it is characterized in that: in rotating shaft (1), be fixed with axle sleeve (2), wheel hub holder (3) is fixed on axle sleeve (2), stator core (4) interference fit sleeve is upper at wheel hub holder (3), and magnet steel (5) is adhesively fixed on the inwall of motor housing (10);
Rotating disk cap (6) is fixed on the outer ring of fore bearing (7), the inner ring of fore bearing (7) is fixed in rotating shaft (1), rear end cap (9) is fixed on the outer ring of rear bearing (8), the inner ring of rear bearing (8) is fixed in rotating shaft (1), it is upper that industrial big fan blade (11) is bolted on blade connecting plate (12), and blade connecting plate (12) is fixed by screws on rotating disk cap (6);
Motor housing (10) is cylinder-shaped, and the upper end of motor housing (10) is fixed together by screw and rotating disk cap (6), and the lower end of motor housing (10) is fixed together by screw and rear end cap (9).
2. the industrial big fan external rotor permanent magnet synchronous machine of one according to claim 1, is characterized in that: the groove number of stator core (4) is 36 grooves, magnet steel (5) quantity is 16 pairs.
3. the industrial big fan external rotor permanent magnet synchronous machine of one according to claim 1, is characterized in that: the gap between stator core (4) and magnet steel (5) is 1mm.
4. the industrial big fan external rotor permanent magnet synchronous machine of one according to claim 1, it is characterized in that: rotating shaft (1) is hollow pipe, the lower end of rotating shaft (1) is fixed with lampshade (13), it is upper that electricity-saving lamp (14) is arranged on lampshade (13), and the power line of electricity-saving lamp (14) is placed in the hollow of rotating shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320844295.1U CN203645515U (en) | 2013-12-19 | 2013-12-19 | External rotor permanent magnet synchronous motor of industrial big fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320844295.1U CN203645515U (en) | 2013-12-19 | 2013-12-19 | External rotor permanent magnet synchronous motor of industrial big fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203645515U true CN203645515U (en) | 2014-06-11 |
Family
ID=50876734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320844295.1U Expired - Lifetime CN203645515U (en) | 2013-12-19 | 2013-12-19 | External rotor permanent magnet synchronous motor of industrial big fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203645515U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979951A (en) * | 2015-04-23 | 2015-10-14 | 李德生 | Energy-saving hollow ring axle type suction and exhaust motor |
| WO2015180494A1 (en) * | 2014-05-27 | 2015-12-03 | 新昌县三新空调风机有限公司 | Novel industrial fan |
| CN109818448A (en) * | 2019-03-22 | 2019-05-28 | 苏州行远精密控制系统有限公司 | A kind of anti-high impact rudder wing one is straight to drive electric motor system |
-
2013
- 2013-12-19 CN CN201320844295.1U patent/CN203645515U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015180494A1 (en) * | 2014-05-27 | 2015-12-03 | 新昌县三新空调风机有限公司 | Novel industrial fan |
| CN104979951A (en) * | 2015-04-23 | 2015-10-14 | 李德生 | Energy-saving hollow ring axle type suction and exhaust motor |
| CN109818448A (en) * | 2019-03-22 | 2019-05-28 | 苏州行远精密控制系统有限公司 | A kind of anti-high impact rudder wing one is straight to drive electric motor system |
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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: 20140611 |
|
| CX01 | Expiry of patent term |