CN2634159Y - Novel transformer cooling fan - Google Patents
Novel transformer cooling fan Download PDFInfo
- Publication number
- CN2634159Y CN2634159Y CN 03261116 CN03261116U CN2634159Y CN 2634159 Y CN2634159 Y CN 2634159Y CN 03261116 CN03261116 CN 03261116 CN 03261116 U CN03261116 U CN 03261116U CN 2634159 Y CN2634159 Y CN 2634159Y
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- CN
- China
- Prior art keywords
- blade
- utility
- transformer cooling
- model
- motor
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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 novel transformer cooling fan which is particularly suitable for large and medium scale and oversize transformer cooling systems and propeller fans for general service. The utility model mainly comprises an air duct, a motor and a blade wheel, wherein the motor is fixed in the air duct, the blade wheel comprises a hub, a blade shank and a blade, and the motor shaft is connected with the hub on the blade wheel. The utility model is characterized in that: the blade is a hollow streamline structure, a blade top and a blade root share the same cross section area, reinforced ribs and filling material are arranged inside the blade, and the blade is connected fixedly with the blade shank through a rivet. As the utility model adopts the hollow streamline blade, the utility model meets requirements of transformer cooling fans with different blade diameter, rotating speed, frequency, number of blades, air volume and pressure, thereby having the advantages of high efficiency, energy saving effect, little noise, and good versatility.
Description
Technical field
The utility model relates to a kind of transformer cooling fan, is specially adapted to big-and-middle-sized and the oversize transformer cooling system, and general purpose propeller fan.
Background technique
Existing transformer cooling fan comprises air duct, motor and impeller, and its blade mostly is the uniform thickness template, the streamline design of adopting wing blade is also arranged, but be solid construction in it.Because blade is solid, so its Heavy Weight, consumptive material is big, and particularly vane tip weight can subtract, rotator inertia is big during work, and the starting time is long, and starting current is big, particularly during the transformer on-line operation, several or tens cooling fans start simultaneously, and are very big to the power surges of power supply.
Summary of the invention
The purpose of this utility model is to provide a kind of efficient, energy-conservation, low noise, novel transformer cooling fan safe and reliable to operation for transformer industry.
The utility model mainly comprises air duct, motor and impeller, motor is fixed in the air duct, impeller comprises wheel hub, petiole and blade, motor shaft links to each other with wheel hub on the impeller, it is characterized in that this blade is the hollow shape streamline structure, the leaf top is identical with the transverse section of blade root, and stiffening rib and stuffing are arranged in the blade, and blade and petiole are connected and fixed with rivet.
The utility model is owing to adopt hollow shape streamline blade, the requirement of the transformer cooling fan of can satisfy that impeller diameter varies in size, rotating speed difference, frequency difference, number of blade difference, air quantity are different with blast has advantages such as efficient, energy-conservation, low noise, highly versatile.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the vane section bar schematic cross-sectional view;
Fig. 3 is the petiole structural representation;
Fig. 4 is blade and petiole connection diagram.
Embodiment
As shown in Figure 1, the utility model comprises air duct 1, motor 2 and impeller 3, motor 2 is fixed in the air duct 1, impeller 3 comprises wheel hub, petiole 6 and blade 4, and motor shaft links to each other with wheel hub on the impeller 3, it is characterized in that this blade 4 is the imitative wing blade structure (as shown in Figure 2) of hollow shape streamline, since blade with aluminum alloy through extrusion moulding, the leaf top is identical with the transverse section of blade root, can make the blade of different sizes according to the section bar of different blade diameter intercepting different lengths.Stiffening rib 5 and stuffing are arranged in the blade, utilize hollow in the blade, can install the mass of smoothing weighing apparatus additional, the two ends of this section bar seal with aluminium sheet then; As shown in Figure 3, Figure 4, petiole 6 is threaded integral type Cast Steels, and fixed hole 7 is arranged on it, and it is fixedly connected with it that petiole 6 inserts blade 4 usefulness rivets 8.Hollow parts in the blade generally fills up with polyurethane foam glue, can alleviate the weight (on average descending 50%) of blade, the noise in the time of reducing the fan operation again, comparable like product decreased average noise 1.17dB (A)-6dB (A).
Claims (2)
1, a kind of novel transformer cooling fan, mainly comprise air duct (1), motor (2) and impeller (3), motor (2) is fixed in the air duct (1), impeller comprises wheel hub, petiole (6) and blade (4), motor shaft links to each other with wheel hub on the impeller (3), it is characterized in that this blade (4) is the hollow shape streamline structure, and the leaf top is identical with the transverse section of blade root, stiffening rib (5) and stuffing are arranged in the blade (4), and blade (4) is fixedlyed connected with rivet (8) with petiole (6).
2, transformer cooling fan as claimed in claim 1 is characterized in that this stuffing is a polyurethane foam glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03261116 CN2634159Y (en) | 2003-08-12 | 2003-08-12 | Novel transformer cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03261116 CN2634159Y (en) | 2003-08-12 | 2003-08-12 | Novel transformer cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2634159Y true CN2634159Y (en) | 2004-08-18 |
Family
ID=34296632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03261116 Expired - Fee Related CN2634159Y (en) | 2003-08-12 | 2003-08-12 | Novel transformer cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2634159Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102085429A (en) * | 2010-12-22 | 2011-06-08 | 深圳市中邦(集团)建设总承包有限公司 | Blade and pressure gradient sand settling machine employing same |
| CN102439320A (en) * | 2009-05-20 | 2012-05-02 | W&S管理公司 | Fan blade |
| CN103174680A (en) * | 2011-12-23 | 2013-06-26 | 西安西诺科技工业公司 | Transformer fan typhon air cylinder system |
| CN105298913A (en) * | 2015-11-27 | 2016-02-03 | 卧龙电气南阳防爆集团股份有限公司 | Blade of axial flow fan and manufacturing method of blade |
| CN106168228A (en) * | 2016-08-17 | 2016-11-30 | 江苏兆胜空调有限公司 | A kind of high-efficient low-noise axial wheel |
| CN106168227A (en) * | 2016-08-17 | 2016-11-30 | 江苏兆胜空调有限公司 | A kind of extruded hollow aluminium section bar airfoil vanes impeller |
| WO2017054387A1 (en) * | 2015-09-28 | 2017-04-06 | 北京图正实验室科技有限公司 | Bird's wing type high-pressure axial flow fan blade and counter-rotating axial flow fan thereof |
-
2003
- 2003-08-12 CN CN 03261116 patent/CN2634159Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102439320A (en) * | 2009-05-20 | 2012-05-02 | W&S管理公司 | Fan blade |
| CN102085429A (en) * | 2010-12-22 | 2011-06-08 | 深圳市中邦(集团)建设总承包有限公司 | Blade and pressure gradient sand settling machine employing same |
| CN102085429B (en) * | 2010-12-22 | 2012-05-23 | 深圳市中邦(集团)建设总承包有限公司 | Blade and pressure gradient sand settling machine employing same |
| CN103174680A (en) * | 2011-12-23 | 2013-06-26 | 西安西诺科技工业公司 | Transformer fan typhon air cylinder system |
| WO2017054387A1 (en) * | 2015-09-28 | 2017-04-06 | 北京图正实验室科技有限公司 | Bird's wing type high-pressure axial flow fan blade and counter-rotating axial flow fan thereof |
| CN105298913A (en) * | 2015-11-27 | 2016-02-03 | 卧龙电气南阳防爆集团股份有限公司 | Blade of axial flow fan and manufacturing method of blade |
| CN106168228A (en) * | 2016-08-17 | 2016-11-30 | 江苏兆胜空调有限公司 | A kind of high-efficient low-noise axial wheel |
| CN106168227A (en) * | 2016-08-17 | 2016-11-30 | 江苏兆胜空调有限公司 | A kind of extruded hollow aluminium section bar airfoil vanes impeller |
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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: 20040818 Termination date: 20110812 |