CN213839011U - Novel energy-saving efficiency-improving cross-flow fan blade tail wing - Google Patents
Novel energy-saving efficiency-improving cross-flow fan blade tail wing Download PDFInfo
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- CN213839011U CN213839011U CN202022119576.3U CN202022119576U CN213839011U CN 213839011 U CN213839011 U CN 213839011U CN 202022119576 U CN202022119576 U CN 202022119576U CN 213839011 U CN213839011 U CN 213839011U
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- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 20
- 241001481833 Coryphaena hippurus Species 0.000 abstract description 4
- 210000000006 pectoral fin Anatomy 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a novel energy-saving efficiency-improving cross-flow fan blade empennage, which comprises a fan blade and an empennage body; a plurality of grooves are arranged in the inner cavity of the fan blade, and screw holes are formed in the surfaces of the fan blade at positions corresponding to the grooves; one end of the empennage body is provided with a plurality of convex blocks matched with the grooves of the inner cavity of the fan blade, the convex blocks are provided with screw holes, and the convex blocks are clamped into the grooves and are fixed with the fan blade through screws or rivets; the other end of the empennage body is a streamline curved surface, and the tail end of the empennage body inclines towards a lower streamline. The tail end of the tail wing body of the utility model is designed into a pectoral fin similar to a dolphin, and is inclined towards the lower streamline. The small-area flow guide surface is different from the small-area flow guide surface of the decorative tail wing, the flow guide surface is large enough, air can be effectively guided to the oblique lower side, and air flow is prevented from flowing away from the radial direction of the fan blade. Different from the upwarping mode of the diffusible empennage, the empennage guides the flow downwards, the airflow is prevented from diffusing in the direction far away from the ground, the flow guiding effect is enhanced, and the sensed wind effect is better.
Description
Technical Field
The utility model belongs to the technical field of the ceiling fan blade, especially, relate to a novel energy-conservation carry and imitate through-flow fan blade fin.
Background
The blade and tail wing of the ceiling fan on the market at present mainly has two aspects: 1. decorating; 2. the airflow is diffused. The decorative tail wing has no obvious effect on the overall wind effect of the fan and is only used for appearance decoration for blocking gaps at the tail of the fan blades. And because the guide surface of the empennage is generally small and the shape design is not beneficial to air flow guide, the guide function is very limited. The tail wing shape of the diffusion tail wing design is mostly an upturned shape and aims to incite air to the periphery of the fan and increase the coverage area. However, the angle of the tail wing is increased, so that the distance from the wind to the ground is increased, the wind power is greatly weakened when the wind reaches the ground, and the actual effect is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough of current fan blade fin structure existence, provide a neotype energy-conservation and carry effect through-flow fan blade fin, let the air current circulate smoothly, reduce the air resistance, increase the operating efficiency of fan, reinforcing water conservancy diversion effect lets the wind effect that the human body on ground experienced better.
In order to achieve the above purpose, the utility model provides a technical scheme as follows:
a novel energy-saving efficiency-improving cross-flow fan blade tail wing comprises fan blades and a tail wing body;
the fan blade comprises a bottom surface part in a plane structure, a top surface part in an outwardly-protruded arc surface structure and side surface parts, wherein the bottom surface part is connected with the top surface part through the side surface parts at two sides, a plurality of grooves are formed in an inner cavity of the formed fan blade, and screw holes are formed in the surfaces of the fan blade at positions corresponding to the grooves;
one end of the empennage body is provided with a plurality of convex blocks matched with the grooves of the inner cavities of the fan blades, the convex blocks are provided with screw holes, the convex blocks are clamped in the grooves, and screws or rivets are arranged in the screw holes; the other end of the empennage body is a streamline curved surface, and the tail end of the empennage body inclines towards a lower streamline.
The utility model relates to a novel energy-conserving effect through-flow fan blade fin of carrying out streamlined ending design, the end of fin body. Because the linear speed of the tail end is the fastest when the fan blade rotates, a part of the position with the fastest linear speed of the tail end is removed according to a streamline shape, so that the resistance of the fan blade during rotation is greatly reduced, the influence on wind efficiency is very small, the running efficiency of the fan is greatly increased, and the energy efficiency ratio of the fan is improved. The tail end of the empennage body is designed into a pectoral fin similar to a dolphin and inclines towards a lower streamline. The small-area flow guide surface is different from the small-area flow guide surface of the decorative tail wing, the flow guide surface is large enough, air can be effectively guided to the oblique lower side, and air flow is prevented from flowing away from the radial direction of the fan blade. Different from the upwarping mode of the diffusible empennage, the empennage guides the flow downwards, the airflow is prevented from diffusing in the direction far away from the ground, the guiding effect is enhanced, and the wind effect felt by a human body on the ground is better. An embedded mounting structure is adopted between the empennage body and the fan blades, and when the assembly is carried out, the convex blocks of the empennage body are inserted into the grooves of the inner cavity of the fan blades and then are fixed with the fan blades in the modes of self-tapping screws or rivets and the like. The utility model discloses a structural design lets the curved surface rounding off that links up between fan blade and the fin body, does not produce obtrusively, lets the air current circulate smoothly, reduces the air current resistance, increases the running efficiency of fan.
Specifically, the joint of the empennage body and the fan blade is not provided with bulges or depressions, and the curved surface of the joint is in smooth transition. The smooth transition of the curved surface between the fan blade and the tail wing does not generate a sharp shape, thus leading the air flow to be smooth and reducing the air flow resistance.
Preferably, the inner wall of the top surface part of the fan blade is provided with at least one top surface reinforcing rib, and the inner wall of the bottom surface part of the fan blade is provided with at least one bottom surface reinforcing rib. The strengthening rib setting strengthens the intensity of fan blade, increases life.
Specifically, one end of the empennage body is provided with two convex blocks matched with the grooves, one is a flat rectangular convex block, and the other is a flat strip-shaped convex block.
Preferably, the angle between the connecting line of the bottom of the empennage body connected with the fan blades and the lowest point of the empennage body and the horizontal line is 20-35 degrees. The included angle can show the degree of the tail end of the empennage inclining towards the lower streamline, the included angle is set to be 20-35 degrees, the diversion effect can be enhanced, and meanwhile the rotating resistance of the fan blade is reduced.
Specifically, the projection is provided with a screw hole in the middle.
Specifically, the depth of the lug clamped into the groove is one third to one half of the length of the tail wing body. The clamping depth is large, and the stability of connection with the fan blade is higher.
Specifically, the end that the fin body is connected with the fan blade is the link, the width and the thickness of link are the biggest, and the distance between the link and other parts of fin body is bigger, and then width and thickness are littleer. The width of the lug is one half to two thirds of the width of the connecting end. The arrangement of the shape of the empennage body can enhance the flow guiding effect and reduce the resistance of the rotation of the fan blades.
Specifically, 2 grooves are formed in the inner cavity of the formed fan blade, and the depth of the 2 grooves is the same.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model relates to a novel energy-conserving effect through-flow fan blade fin of carrying out streamlined ending design, the end of fin body. Because the linear speed of the tail end is the fastest when the fan blade rotates, a part of the position with the fastest linear speed of the tail end is removed according to a streamline shape, so that the resistance of the fan blade during rotation is greatly reduced, the influence on wind efficiency is very small, the running efficiency of the fan is greatly increased, and the energy efficiency ratio of the fan is improved.
2. The tail end of the empennage body is designed into a pectoral fin similar to a dolphin and inclines towards a lower streamline. The small-area flow guide surface is different from the small-area flow guide surface of the decorative tail wing, the flow guide surface is large enough, air can be effectively guided to the oblique lower side, and air flow is prevented from flowing away from the radial direction of the fan blade. Different from the upwarping mode of the diffusible empennage, the empennage guides the flow downwards, the airflow is prevented from diffusing in the direction far away from the ground, the guiding effect is enhanced, and the wind effect felt by a human body on the ground is better.
3. An embedded mounting structure is adopted between the empennage body and the fan blades, and when the assembly is carried out, the convex blocks of the empennage body are inserted into the grooves of the inner cavity of the fan blades and then are fixed with the fan blades in the modes of self-tapping screws or rivets and the like. The utility model discloses a structural design lets the curved surface rounding off that links up between fan blade and the fin body, does not produce obtrusively, lets the air current circulate smoothly, reduces the air current resistance, increases the running efficiency of fan.
Drawings
Fig. 1 is the overall structure schematic diagram of the energy-saving efficiency-improving cross-flow fan blade empennage of the utility model.
Fig. 2 is a top view of the energy-saving efficiency-improving cross-flow fan blade empennage of the utility model.
Fig. 3 is a schematic structural diagram of the fan blade of the present invention.
Fig. 4 is a schematic front structural view of the tail body of the present invention.
Fig. 5 is a schematic side view of the empennage body of the present invention.
Fig. 6 is a diagram of air conductance when the present invention is in use.
FIG. 7 is a comparison of the airflow patterns of the present invention when applied to a ceiling fan, with a conventional ceiling fan; wherein A is the decorative empennage ceiling fan air flow chart, B is the diffusibility empennage ceiling fan air flow chart, and C is the utility model discloses empennage ceiling fan air flow chart.
The figure includes:
1-Fan blade
11-first screw hole
2-empennage body
21-bump
22-second screw hole
And 3, a groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments and accompanying drawings, but the scope of the present invention is not limited to the embodiments.
Example 1:
as shown in the figures 1-4 of the drawings,
a novel energy-saving efficiency-improving cross-flow fan blade empennage comprises a fan blade 1 and an empennage body 2;
the fan blade 1 comprises a bottom surface part in a plane structure, a top surface part in an outwardly convex arc surface structure and a side surface part, one side of the bottom surface part is connected with one side corresponding to the top surface part through the side surface part, the other side of the bottom surface part is connected with the other side corresponding to the top surface part through the side surface part, two grooves 3 are formed in an inner cavity of the formed fan blade, the depths of the two grooves 3 are the same, and first screw holes 11 are formed in the positions, corresponding to the grooves 3, of the surface of the fan blade 1;
one end of the empennage body 2 is provided with two convex blocks 21 matched with the grooves of the inner cavities of the fan blades, one is a flat rectangular convex block, and the other is a flat strip-shaped convex block. The middle position of the lug 21 is provided with a second screw hole 22, and the lug 21 is clamped into the groove 3 and is fixed with the fan blade 1 through a screw or a rivet; the joint of the empennage body 2 and the fan blade 1 is not provided with bulges or depressions, and the curved surface of the joint is in smooth transition.
The other end of the empennage body 2 is a streamline curved surface, and the tail end of the empennage body inclines towards a lower streamline. As shown in fig. 5, the angle between the line connecting the bottom of the empennage body connected with the fan blades and the lowest point of the empennage body and the horizontal line is alpha, and alpha can be 20-35 degrees. The included angle can show the degree of the tail end of the empennage inclining towards the lower streamline, the included angle is set to be 20-35 degrees, the diversion effect can be enhanced, and meanwhile the rotating resistance of the fan blade is reduced.
In this embodiment, the inner wall of the top portion of the fan blade is provided with at least one top surface reinforcing rib, and the inner wall of the bottom portion of the fan blade is provided with at least one bottom surface reinforcing rib. The strengthening rib setting strengthens the intensity of fan blade, increases life. The depth of the lug clamped into the groove is one half of the length of the empennage body. The clamping depth is large, and the stability of connection with the fan blade is higher. The end part of the empennage body connected with the fan blades is a connecting end, the width and the thickness of the connecting end are the largest, and the larger the distance between the other parts of the empennage body and the connecting end is, the smaller the width and the thickness are. The width of the lug is two thirds of the width of the connecting end. The arrangement of the shape of the empennage body can enhance the flow guiding effect and reduce the resistance of the rotation of the fan blades.
As shown in fig. 6 and 7, the tail end of the tail body is designed to be similar to a pectoral fin of a dolphin and inclined towards a lower streamline. Different from the small-area flow guide surface of the decorative empennage in fig. 7A, the small-area flow guide surface is large enough to effectively guide air to the oblique lower side and prevent air flow from flowing away from the radial direction of the fan blades. Different from the upwarping mode of the diffusible empennage in fig. 7B, the empennage guides the air downwards, so that the air flow is not diffused to the direction far away from the ground, the guiding effect is enhanced, and the human body on the ground feels better wind effect.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. A novel energy-saving efficiency-improving cross-flow fan blade empennage is characterized in that the fan blade empennage comprises fan blades and an empennage body;
the fan blade comprises a bottom surface part in a plane structure, a top surface part in an outwardly-protruded arc surface structure and side surface parts, wherein the bottom surface part is connected with the top surface part through the side surface parts at two sides, a plurality of grooves are formed in an inner cavity of the formed fan blade, and screw holes are formed in the surfaces of the fan blade at positions corresponding to the grooves;
one end of the empennage body is provided with a plurality of convex blocks matched with the grooves of the inner cavities of the fan blades, the convex blocks are provided with screw holes, the convex blocks are clamped in the grooves, and screws or rivets are arranged in the screw holes; the other end of the empennage body is a streamline curved surface, and the tail end of the empennage body inclines towards a lower streamline.
2. The novel energy-saving efficiency-improving through-flow fan blade empennage according to claim 1, wherein the joint of the empennage body and the fan blade is free of protrusions or depressions, and the curved surface of the joint is in smooth transition.
3. The novel energy-saving efficiency-improving cross-flow fan blade empennage as claimed in claim 1, wherein the inner wall of the top surface part of the fan blade is provided with at least one top surface reinforcing rib, and the inner wall of the bottom surface part of the fan blade is provided with at least one bottom surface reinforcing rib.
4. The novel energy-saving efficiency-improving cross-flow fan blade empennage as claimed in claim 1, wherein one end of the empennage body is provided with two lugs matched with the grooves, one is a flat rectangular lug, and the other is a flat strip-shaped lug.
5. The novel energy-saving efficiency-improving through-flow fan blade tail wing of claim 1, wherein the included angle between the connecting line of the bottom of the tail wing body connected with the fan blades and the lowest point of the tail wing body and the horizontal line is 20-35 degrees.
6. The novel energy-saving efficiency-improving through-flow fan blade empennage according to claim 1, wherein the end part of the empennage body connected with the fan blade is a connecting end, the width and the thickness of the connecting end are the largest, and the larger the distance between the other part of the empennage body and the connecting end is, the smaller the width and the thickness are.
7. The novel energy-saving efficiency-improving cross-flow fan blade empennage as claimed in claim 6, wherein the width of the projection is one half to two thirds of the width of the connecting end.
8. The novel energy-saving efficiency-improving cross-flow fan blade empennage as claimed in claim 1, wherein the projection is provided with a screw hole at the middle position.
9. The novel energy-saving efficiency-improving through-flow fan blade tail wing according to claim 1, wherein the depth of the lug clamped into the groove is one third to one half of the length of the tail wing body.
10. The novel energy-saving efficiency-improving through-flow fan blade empennage according to claim 1, wherein 2 grooves are formed in an inner cavity of a formed fan blade, and the depth of the 2 grooves is the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022119576.3U CN213839011U (en) | 2020-09-24 | 2020-09-24 | Novel energy-saving efficiency-improving cross-flow fan blade tail wing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022119576.3U CN213839011U (en) | 2020-09-24 | 2020-09-24 | Novel energy-saving efficiency-improving cross-flow fan blade tail wing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213839011U true CN213839011U (en) | 2021-07-30 |
Family
ID=77006332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022119576.3U Active CN213839011U (en) | 2020-09-24 | 2020-09-24 | Novel energy-saving efficiency-improving cross-flow fan blade tail wing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213839011U (en) |
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- 2020-09-24 CN CN202022119576.3U patent/CN213839011U/en active Active
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A new type of energy-saving and efficiency enhancing through flow fan blade tail wing Effective date of registration: 20231212 Granted publication date: 20210730 Pledgee: Cuishanhu Technology Branch of Guangdong Kaiping Rural Commercial Bank Co.,Ltd. Pledgor: GUANGDONG YONGFENG CHIWELL ELECTRIC Co.,Ltd. Registration number: Y2023980071069 |