CN204082665U - Fan blade - Google Patents
Fan blade Download PDFInfo
- Publication number
- CN204082665U CN204082665U CN201420568257.2U CN201420568257U CN204082665U CN 204082665 U CN204082665 U CN 204082665U CN 201420568257 U CN201420568257 U CN 201420568257U CN 204082665 U CN204082665 U CN 204082665U
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- CN
- China
- Prior art keywords
- blade
- vertical wing
- fan blade
- wing
- 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 kind of fan blade, comprise blade (2) and the fan blade fastener rings (1) for installing blade (2), described each blade (2) is provided with multiple vertical wing (3), the described vertical wing (3) is a fanning strip, the thickness of the described vertical wing (3) is increased to two right angle side (4) point of intersection gradually by arc-shaped edges (5), the described vertical wing (3) circumferentially turns clockwise centered by the axle center of fan blade fastener rings (1), the right angle side (4) that the described vertical wing (3) rotates is affixed with blade (2), the arc-shaped edges (5) of the described vertical wing (3) is to the curving near fan blade fastener rings (1) axle center.The utility model fan blade makes that on-bladed district in the middle of fan produces air-flow, wind-force is comparatively assembled, and forms multiple air channel and be applicable to multiple wind-force and assemble direction.
Description
Technical field
The utility model relates to a kind of fan blade.
Background technique
Fan blade is the critical piece of fan, existing fan blade generally comprises blade and the fan blade fastener rings for installing blade, when the fan blade of this structure is used for fan, in the fan blade fastener rings intermediate portion of fan owing to there is no blade, can not produce air-flow, the air-flow of fan entirety comparatively disperses, the DeGrain that wind-force is gathered, and fix due to wind direction, can not change according to actual conditions the position that wind-force needs to concentrate.Existing a kind of ring-type fan, peripheral annular circle is generally used for stator blade, makes blade not yielding, the width of peripheral annular circle is general less, do not rise and gather effect, the air-flow that fan produces still to surrounding diffusion, can not make wind-force be gathered in fan intermediate portion than being easier to.
Model utility content
Technical problem to be solved in the utility model is: the defect overcoming above prior art, and on-bladed district in the middle of fan produces air-flow, wind-force is comparatively assembled to provide one to make, and forms the fan blade that multiple air channel is applicable to multiple wind-force gathering direction.
Technical solution adopted in the utility model is: provide a kind of fan blade, comprise blade and the fan blade fastener rings for installing blade, described each blade is provided with multiple vertical wing, the described vertical wing is a fanning strip, the thickness of the described vertical wing is increased to two right angle side point of intersection gradually by arc-shaped edges, the described vertical wing circumferentially turns clockwise centered by the axle center of fan blade fastener rings, right angle side and the blade surface of described vertical wing rotation are affixed, and the arc-shaped edges of the described vertical wing is to the curving near fan blade fastener rings axle center.
After adopting above structure, the utility model fan blade compared with prior art has the following advantages: on blade, arrange the vertical wing, the centrifugal wind-force utilizing the vertical wing to be produced by blade rotary is gathered, wind-force is made to be gathered in the middle of fan blade, the vertical wing is fan-shaped, lower one end is intake grill, and higher one end is exhaust outlet; The position that the vertical wing contacts with blade is thicker, increases the intensity of the vertical wing; The vertical wing and blade contact, centered by the center of fan blade fastener rings, circumferentially arrange, the wind-force that blade rotary produces is along the inner side surface of the vertical wing, better congregational rate can be produced, form an air channel between every two vertical wings, make centrifugal flow in each air channel, form the accumulation regions of each different wind direction; The arc-shaped edges of the vertical wing and upper end are to the curving near fan blade fastener rings axle center, and the air-flow that blade is produced is enclosed in the groove that the vertical wing is bent to form, and is not easy, from blade edge leakage, to make the collection efficiency of wind-force higher.
As improvement, the two ends of the described vertical wing and the affixed right angle side of blade lay respectively on the edge of blade both sides, make the air-flow that blade rotation produces, enter from the edge of blade within the scope of the vertical wing, and the vertical wing extends to another edge of blade, guarantees that air-flow is limited in inside the vertical wing to greatest extent, the final gathering wind-force produced is maximum, the quantity of the vertical wing is more, gathers effect more obvious.
As improvement, described vertical wing bottom and blade contact position arc transition, because the vertical wing has larger resistance to the air-flow of gathering that blade produces, vertical wing bottom and blade arc transition, effectively can increase the installation strength of the vertical wing.
As improvement, the side that described vertical wing arc-shaped edges is higher is positioned at the higher side of blade, and the side that vertical wing arc-shaped edges is lower is positioned at the lower side of blade, and the side that blade is lower is wind inlet, higher side is exhaust outlet, and the vertical wing arranged so more meets the hydromechanics principle of gas.
As improvement, / 3rd of a described fan blade fastener rings radius is greater than near the height of the vertical direction right angle side of the vertical wing in axle center in the described multiple vertical wing, the height of the vertical wing of hithermost fan blade fastener rings reaches more than 1/3rd of fan blade fastener rings radius, air-flow just can be made to be gathered in on-bladed district, not exist without wind-force district.
As improvement, the vertical direction right angle side height of described (n+1)th vertical wing is less than the height of the vertical direction right angle side of the n-th vertical wing, the centrifugal force that air-flow produces in the position more away from axle center is larger, if the excessive height of the vertical wing, the effect due to centrifugal force is easy to the fracture causing the vertical wing.
As improvement, the bend angle of described (n+1)th vertical wing is less than the bend angle of the n-th vertical wing, because the airflow centrifugal power the closer to fan edge is larger, if the vertical wing bend angle in outside is comparatively large, the impact force that also can be subject to due to the vertical wing is too large and the vertical wing is ruptured.
As improvement, the bottom of the described vertical wing and blade connection part can offset to away from axle center or near axle center in one end of the intake grill of blade, can according to the vertical angle of wing skew of actual user demand design and the quantity of the vertical wing, wind-force is gathered in be needed in the air channel of concentrating.
As improvement, described blade bi-side are equipped with the vertical wing, when this fan blade is used for wind-power electricity generation, have better wind gathering effect.
As improvement, the described vertical wing and blade can be one-body molded or shaping separately, described independent shaping time found the wing and be connected turnably with blade surface, refer to when the vertical wing is connected turnably with blade surface, the vertical wing can carry out the rotation of different azimuth with the contact position of blade according to design requirement, if found the wing and blade, to be that plastic material can adopt one-body molded, if other metal materials, formed by integrally casting can be adopted shaping, or independent shaping rear employing is riveted or is welded and fixed.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing opening fan.
Fig. 2 is the structural representation of existing ring-type fan.
Fig. 3 is the sectional view of the utility model fan blade.
Fig. 4 is the plan view of the utility model fan blade.
Fig. 5 is the enlarged diagram at A place in Fig. 4.
Fig. 6 be in Fig. 5 B to schematic diagram.
Fig. 7 is the structural representation of the neutral wing of the utility model
In figure, 1 ', fan blade fastener rings, 2 ', blade, 3 ', peripheral annular circle;
1, fan blade fastener rings, 2, blade, 3, the vertical wing, 4, right angle side, 5, arc-shaped edges, 6, away from axle center, 7, near axle center.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in the figure, the utility model provides a kind of fan blade, comprise blade 2 and the fan blade fastener rings 1 for installing blade 2, it is characterized in that: described each blade 2 is provided with multiple vertical wing 3, the described vertical wing 3 is a fanning strip, the thickness of the described vertical wing 3 is increased to two right angle side 4 point of intersection gradually by arc-shaped edges 5, the described vertical wing 3 circumferentially turns clockwise centered by the axle center of fan blade fastener rings 1, the right angle side 4 that the described vertical wing 3 rotates is affixed with blade 2, and the arc-shaped edges 5 of the described vertical wing 3 is to the curving near fan blade fastener rings 1 axle center.The two ends of the right angle side 4 that the described vertical wing 3 is affixed with blade 2 lay respectively on the edge of blade 2 both sides.The described vertical wing 3 bottom and blade 2 contact position arc transition.The side that the described vertical wing 3 arc-shaped edges 5 is higher is positioned at the higher side of blade 2, and the side that the vertical wing 3 arc-shaped edges 5 is lower is positioned at the lower side of blade 2./ 3rd of described fan blade fastener rings 1 radius is greater than near the height of the vertical direction right angle side 4 of the vertical wing 3 in axle center in the described multiple vertical wing 3.The vertical direction right angle side 4 of described (n+1)th vertical wing 3 is highly less than the height of the vertical direction right angle side 4 of the n-th vertical wing 3.The bend angle of described (n+1)th vertical wing 3 is less than the bend angle of the n-th vertical wing 3.The bottom of the described vertical wing 3 and blade 2 connection part can offset to away from axle center 6 or near axle center 7 in one end of the intake grill of blade.Described blade 2 bi-side are provided with the vertical wing 3.The described vertical wing 3 can be one-body molded or shaping separately with blade 2.
In manufacturing process, select to arrange the vertical wing 3 at the outlet air surface of fan blade 2, the vertical wing 3 is one-body molded with blade 2, blade 2 reverses when being arranged on fan blade fastener rings 1, the side of close observer is the side that blade 2 is higher, and the side away from observer is the side that blade 2 is lower, and the both sides on the vertical wing 3 base flush with blade 2 both sides, top and arc-shaped edges 5 thickness size of the vertical wing 3 are arranged to R1, can effectively reduce noise.
In use, Environmental Conditions according to fan can arrange the vertical wing 3 in different positions: if this fan blade is used for concentrated wind-force air-out or air draft, then only need install the vertical wing 3 at the outlet air surface of fan, and the quantity of the vertical wing 3 can be lacked relatively, the interval between the vertical wing 3 can be relatively large; If this fan blade to be used for wind-force cooling, to need wind-force is assembled in fan center, then at the outlet air surface of fan, the more vertical wing 3 need be installed, and the interval between the vertical wing 3 also to reduce relatively.
Use novel preferred embodiment to be described with regard to this above, but can not be interpreted as it is limitations on claims.The utility model is not only confined to above embodiment, and its concrete structure allows to change, and all various changes done in the protection domain that this uses novel independent claims are all in protection domain of the present utility model.
Claims (10)
1. a fan blade, comprise blade (2) and the fan blade fastener rings (1) for installing blade (2), it is characterized in that: described each blade (2) is provided with multiple vertical wing (3), the described vertical wing (3) is a fanning strip, the thickness of the described vertical wing (3) is increased to two right angle side (4) point of intersection gradually by arc-shaped edges (5), the described vertical wing (3) circumferentially turns clockwise centered by the axle center of fan blade fastener rings (1), the right angle side (4) that the described vertical wing (3) rotates is affixed with blade (2), the arc-shaped edges (5) of the described vertical wing (3) is to the curving near fan blade fastener rings (1) axle center.
2. fan blade according to claim 1, is characterized in that: the two ends of the right angle side (4) that the described vertical wing (3) is affixed with blade (2) lay respectively on the edge of blade (2) both sides.
3. fan blade according to claim 1, is characterized in that: the described vertical wing (3) bottom and blade (2) contact position arc transition.
4. fan blade according to claim 1, it is characterized in that: the higher side of the described vertical wing (3) arc-shaped edges (5) is positioned at the higher side of blade (2), the side that the vertical wing (3) arc-shaped edges (5) is lower is positioned at the lower side of blade (2).
5. fan blade according to claim 1, is characterized in that: be greater than 1/3rd of described fan blade fastener rings (1) radius near the height of the vertical direction right angle side (4) of the vertical wing (3) in axle center in the described multiple vertical wing (3).
6. fan blade according to claim 1, is characterized in that: the vertical direction right angle side (4) of described (n+1)th vertical wing (3) is highly less than the height of the vertical direction right angle side (4) of the n-th vertical wing (3).
7. fan blade according to claim 6, is characterized in that: the bend angle of described (n+1)th vertical wing (3) is less than the bend angle of the n-th vertical wing (3).
8. fan blade according to claim 7, is characterized in that: the bottom of the described vertical wing (3) and blade (2) connection part can offset to away from axle center (6) or near axle center (7) in one end of the intake grill of blade (2).
9. fan blade according to claim 1, is characterized in that: described blade (2) bi-side are equipped with the vertical wing (3).
10. according to the fan blade in claim 1-9 described in any one, it is characterized in that: the described vertical wing (3) and blade (2) can be one-body molded or shaping separately, described independent shaping time found the wing (3) and be connected turnably with blade (2) surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568257.2U CN204082665U (en) | 2014-09-29 | 2014-09-29 | Fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568257.2U CN204082665U (en) | 2014-09-29 | 2014-09-29 | Fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082665U true CN204082665U (en) | 2015-01-07 |
Family
ID=52175388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420568257.2U Expired - Fee Related CN204082665U (en) | 2014-09-29 | 2014-09-29 | Fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082665U (en) |
-
2014
- 2014-09-29 CN CN201420568257.2U patent/CN204082665U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20160929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |