CN200961592Y - Hollow fan vane - Google Patents
Hollow fan vane Download PDFInfo
- Publication number
- CN200961592Y CN200961592Y CN 200620123702 CN200620123702U CN200961592Y CN 200961592 Y CN200961592 Y CN 200961592Y CN 200620123702 CN200620123702 CN 200620123702 CN 200620123702 U CN200620123702 U CN 200620123702U CN 200961592 Y CN200961592 Y CN 200961592Y
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- CN
- China
- Prior art keywords
- hollow
- arc
- fan blade
- vane
- fan
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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 discloses a hollow fan vane, which is a bar structure, wherein the end-face of the fan vane is formed by the connection of an upper and a lower two arc plates, the middle of the arc plates is formed a hollow space, the radian of the lower arc plate thereof is smaller than that of the upper arc plate, the front side of the connection part of the two arc plates is an arc connection section and transited smoothly, and the back side is the structure of the directly connection of the arc plates. The inner side of the upper arc plate of the hollow fan vane is provided with a plurality of reinforced ribs along the longitude direction, in order to further enhance the mechanical strength of the vane. The thickness of the hollow fan vane can reach to 40mm, the width can reach to 190mm, the wall thickness is 2mm, the middle part is hollow, and the diameter of the fan can most reach to 6m. Using the thinner-width plate material, the structure of the utility model also can produce the large fan vane, and at the same time guarantee the mechanical strength of the vane, make the weight of the whole fan vane not to increase a lot, and satisfy the requirement of the large fan.
Description
Technical field
The utility model relates to a kind of fan blade, particularly a kind of hollow large scale fan blade.
Background technique
Existing suspended ceiling blower fan diameter does not break through all the time that 1.4 meters bottleneck, especially blower fan distance overhead is high more, and air quantity is more little, and when highly reaching 5 meters, ground is flowing of imperceptible air almost.Need to strengthen the power of blower fan, improve rotating speed and just can make moderate progress, but, improve rotating speed, not only consumed energy, produced huge noise pollution simultaneously when the power that strengthens blower fan.But the long strip structure that existing this fan blade all is a solid material to be made, thickness has only several millimeters, when size increases, is not that the intensity of blade just can not guarantee and decrease, and is exactly that the quality of blade increases and the efficient that influences blower fan greatly.Therefore the restriction that this solid fan blade structure is serious the width and the length of fan blade, can not obtain large-sized fan blade.
The model utility content
The purpose of this utility model is to provide a kind of hollow fan blade, adopts hollow blade structure, and then can increase the size of fan blade.
Hollow fan blade of the present utility model, be the long strip structure, the end face of described fan blade is formed by connecting by two arc plates up and down, form hollow space in the middle of the arc plate, the radian of arc lower plate wherein is less than the radian of last arc plate, the front side of two arc plate joints is the arc linkage section and seamlessly transits that rear side is the direct-connected structure of arc plate.
The last arc plate inboard of above-mentioned described hollow fan blade is provided with several stiffening ribs that are provided with along its length.Mechanical strength with further increase blade.
The thickness of above-mentioned described hollow fan blade can reach 40 millimeters, and width reaches 190 millimeters, 2 millimeters of wall thickness, and intermediate hollow, the diameter maximum of blower fan reaches 6 meters.
Because above-mentioned structure of the present utility model is a hollow-core construction, use can be produced large-sized fan blade equally than the sheet material of minimal thickness, guarantee the mechanical strength of blade simultaneously, the quality of whole fan blade is increased not quite, can satisfy the requirement of large scale blower fan.
Description of drawings
Fig. 1 is the structural representation of fan blade of the present utility model;
Fig. 2 is the utilization structure schematic representation of fan blade of the present utility model.
Embodiment
As shown in Figure 1, hollow fan blade of the present utility model is the long strip structure.The end face of described fan blade is formed by connecting by last arc plate 3 and arc lower plate 4, form hollow space in the middle of the arc plate 3,4, the radian of arc lower plate 4 wherein is less than the radian of last arc plate 3, the front side of two arc plate joints is an arc linkage section 1, and seamlessly transit herein, rear side then is two arc plates, 3,4 direct-connected structures 7.
The inboard of the last arc plate 3 of described hollow fan blade is provided with three stiffening ribs 2,5,6 that are provided with along its length.Mechanical strength with further increase blade.Stiffening rib 5 in the middle of wherein being positioned at is the semi-ring shape, to increase effect.
The thickness of above-mentioned described hollow fan blade can reach 40 millimeters, and width reaches 190 millimeters, 2 millimeters of wall thickness, and intermediate hollow, the diameter maximum of blower fan reaches 6 meters.
Structure of the present utility model is, according to the flight characteristics of birds and with reference to the profile of properller, intermediate hollow, the stiffening rib muscle has guaranteed the intensity of blade, makes the diameter maximum of blower fan reach 6 meters, maximum air output reach 30 ten thousand steres/hour.Setting height(from bottom) promotes greatly, even blower fan apart from 10 meters on ground, also can be delivered to ground with huge wind post, improves indoor air circulation.
As shown in Figure 2, hollow fan blade of the present utility model can be fixed on the axial fan hub with screw in use and just can.
Claims (3)
1. hollow fan blade, be the long strip structure, it is characterized in that: the end face of described fan blade is formed by connecting by two arc plates up and down, form hollow space in the middle of the arc plate, the radian of arc lower plate wherein is less than the radian of last arc plate, the front side of two arc plate joints is the arc linkage section and seamlessly transits that rear side is the direct-connected structure of arc plate.
2. hollow fan blade according to claim 1 is characterized in that: the last arc plate inboard of described hollow fan blade is provided with several stiffening ribs that are provided with along its length.
3. hollow fan blade according to claim 1 is characterized in that: the thickness of described hollow fan blade reaches 40 millimeters, and width reaches 190 millimeters, 2 millimeters of wall thickness, and intermediate hollow, the diameter maximum of blower fan reaches 6 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620123702 CN200961592Y (en) | 2006-07-07 | 2006-07-07 | Hollow fan vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620123702 CN200961592Y (en) | 2006-07-07 | 2006-07-07 | Hollow fan vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200961592Y true CN200961592Y (en) | 2007-10-17 |
Family
ID=38798107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620123702 Expired - Fee Related CN200961592Y (en) | 2006-07-07 | 2006-07-07 | Hollow fan vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200961592Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102138005A (en) * | 2008-08-29 | 2011-07-27 | 杜尔牙科股份有限公司 | Rotor for a radial machine |
| CN102155433A (en) * | 2010-09-16 | 2011-08-17 | 苏州顶裕节能设备有限公司 | Enhancement fan impellor |
| CN104454636A (en) * | 2013-09-12 | 2015-03-25 | 三菱电机株式会社 | Centrifugal fan and air-conditioning apparatus |
| CN104763659A (en) * | 2015-04-07 | 2015-07-08 | 马卓娅 | Axial flow fan |
-
2006
- 2006-07-07 CN CN 200620123702 patent/CN200961592Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102138005A (en) * | 2008-08-29 | 2011-07-27 | 杜尔牙科股份有限公司 | Rotor for a radial machine |
| CN102155433A (en) * | 2010-09-16 | 2011-08-17 | 苏州顶裕节能设备有限公司 | Enhancement fan impellor |
| CN104454636A (en) * | 2013-09-12 | 2015-03-25 | 三菱电机株式会社 | Centrifugal fan and air-conditioning apparatus |
| CN104763659A (en) * | 2015-04-07 | 2015-07-08 | 马卓娅 | Axial flow fan |
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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 |