CN212003645U - Streamline fan frame fan capable of reducing wind resistance - Google Patents
Streamline fan frame fan capable of reducing wind resistance Download PDFInfo
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- CN212003645U CN212003645U CN202020069974.6U CN202020069974U CN212003645U CN 212003645 U CN212003645 U CN 212003645U CN 202020069974 U CN202020069974 U CN 202020069974U CN 212003645 U CN212003645 U CN 212003645U
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Abstract
A streamline fan frame fan capable of reducing wind resistance relates to the technical field of fan frames. It contains the front air outlet net, back air inlet net, seven leaf flabellums contain brushless motor magnetic ring external rotor, silica gel ear fixed position, preceding shell and back shell, the central point puts and is provided with seven leaf flabellums and contains brushless motor magnetic ring external rotor in the front air outlet net, the central point puts and is provided with the brushless motor internal stator in the front air outlet net, the lower extreme of preceding air outlet net lower extreme is provided with the function button, silica gel ear fixed position sets up on the outward flange of preceding air outlet net, preceding air outlet net lower end is provided with preceding shell, preceding shell relative position back is provided with the back shell, the relative position back of preceding air outlet net 3 is provided with back air inlet net. With this utility model a reduce streamlined fan frame fan of windage, simple structure has reduced manufacturing cost, great increase the amount of wind and improved the efficiency that human heat dissipation was bloied.
Description
Technical Field
The utility model relates to a fan frame technical field, concretely relates to reduce streamlined fan frame fan of windage.
Background
Recently, as the living standard of people is increased, the demand for personal portable handheld fans with higher wind speed is also increased. In order to improve the air outlet speed of the current 2-inch fan, the air outlet speed of the common 2-inch fan is 5.5m/s, and the air outlet speed of the fan is improved and the air quantity is increased only by reducing the resistance of an air outlet net of an inlet net without adding rotating speed.
The section design of the fan frame of a common manufacturer is basically rectangular or trapezoidal, the windward side is almost a plane, the utility model discloses a fan frame structure is that the windward side is streamlined, the side leaving the wind is not the plane but is streamlined, all reduced the air resistance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide a reduce streamlined fan frame fan of windage, this kind of fan is favorable to minimizing air resistance, and the air-out is smooth and easy, and wind speed loss is minimum, thereby it makes the human body obtain bigger blowing area to add the design of loosing wind, and the body is felt more comfortablely.
In order to achieve the above purpose, the utility model adopts the following technical scheme: it contains preceding air outlet net 3, back air inlet net 5, seven leaf flabellums contain brushless motor magnetic ring external rotor 8, silica gel ear fixed position 9, preceding shell 1 and back shell 2, the inside central point of preceding air outlet net 3 puts and is provided with seven leaf flabellums and contains brushless motor magnetic ring external rotor 8, the inside central point of preceding air outlet net 3 puts and is provided with the brushless motor internal stator, the lower extreme of preceding air outlet net 3 lower extreme is provided with function button 16, silica gel ear fixed position 9 sets up on the outward flange of preceding air outlet net 3, preceding air outlet net 3 lower extreme is provided with preceding shell 1, the relative position back of preceding shell 1 is provided with back shell 2, the relative position back of preceding air outlet net 3 is provided with back air inlet net 5.
Further, the front air outlet net 3 is provided with twenty single air outlet guide protection strips 4, the rear air outlet net 5 is provided with twenty four rear single air inlet guide protection strips 6, and the cross section of the front air outlet net 3 is in a front windward shape, so that the air flow is facilitated by a sharp bullet head shape or a blade shape, and the air resistance is facilitated to be minimized. The section of the rear single air inlet guide protection strip 6 of the rear air inlet net 5 is not a disconnected plane commonly used by other manufacturers at present, but is in a spindle-shaped streamline shape conforming to hydromechanics, so that air can smoothly enter the rear single air inlet guide protection strip. The fan cavity consisting of the rear air inlet net 5 and the front air outlet net 3 does not generate tail vortex turbulent flow. The width of the front single air outlet guide protection strip 4 of the front air outlet net 3 is 1mm, which is the minimum width through practical verification, so that the structural strength of the front fan frame and the front shell is ensured, the height of the front single air outlet guide protection strip 4 is 3.2 mm, and the length-to-width ratio of the front shell 1 to the front air outlet net 3 is 3.2:1, so that the structural strength of the front air outlet net 3 and the front single air outlet guide protection strip 4 can be ensured, the wind resistance can be reduced, the air outlet is smooth, and the wind speed loss is minimum. The front single air outlet guide protection strip 4 of the front air outlet net 3 is combined with the inner air outlet side to form a spindle streamline, the single width of the rear single air inlet guide protection strip 6 of the rear air inlet net 5 is 1.2mm, the height of the rear single air inlet guide protection strip 6 is 2mm, the length-width ratio of the rear shell 2 to the rear air inlet net 5 is 2:1.2, and the air inlet resistance is favorably reduced on the premise of ensuring the structural strength of an air inlet.
Furthermore, the diameter of the seven-blade fan blade with the brushless motor magnetic ring outer rotor 8 is 67mm, the size is that the seven-blade fan blade with the brushless motor magnetic ring outer rotor 8 is the size which can obtain the best blowing effect by using a fan taking a two-inch brushless motor as power, and the tip is large in round angle to prevent sharp cutting.
Further, preceding list air-out direction protection strip 4 of preceding air outlet net 3 disperse the array distribution for clockwise circumference, wide angle air-out, this clockwise circumference is dispersed the array distribution and is contained brushless motor magnetic ring external rotor 8 with seven flabellums and design with the direction of rotation wind-guiding, be favorable to making the fan air-out smooth and easy, the resistance reduces, preceding air outlet net 3 and seven flabellums contain that brushless motor magnetic ring external rotor 8 carries out the cooperation of aerohydrodynamics together, clockwise circumference is dispersed every fan frame that the array distributes and is made the air current of process change the direction a little, it is dispersed a little along the direction of preceding list air-out direction protection strip 4, this fan obtains bigger fan frame air-out angle, make the human body obtain bigger blowing area, it is more comfortable to feel.
Furthermore, the distance between each front single air outlet guide protection strip 4 of the front air outlet net 3 can meet protection requirements, and the wind resistance of the air outlet net can be reduced, so that higher air outlet efficiency is obtained, and the optimal design of taking protection and reducing the wind resistance to improve air outlet effect is achieved.
Furthermore, the front shell 1 and the front air outlet net 3 are integrated, the rear shell 2 and the rear air outlet net 5 are also integrated, the lower end of the rear shell 2 is provided with a folding support 17, the folding support 17 is connected with the rear shell 2 through a folding hinge 18, the fan can stand laterally at any time and any place after the folding support 17 is opened, the fan stands laterally at a desktop at one side and is blown out at an angle of fifteen degrees at the front side of the air, and the fan is placed on the desktop and directly aims at the face of a person to blow air without being held by hands.
Further, the side connecting position of the front shell 1 and the rear shell 2 is provided with a silica gel arm fixing position 10 and a silica gel leg fixing position 11, and the silica gel arm fixing position 10 is arranged at the upper end of the silica gel leg fixing position 11.
Furthermore, the upper end of the function key 16 is sequentially provided with a charging indicator lamp 12, a low-gear indicator lamp hole 13, a middle-gear indicator lamp hole 14 and a high-gear indicator lamp hole 15 in an arc arrangement, and the required wind speed is controlled by pressing the function key 16 according to the actual use requirement.
The utility model discloses a theory of operation: a streamline fan frame fan capable of reducing wind resistance reduces resistance of air inlet and air outlet through a unique front single air outlet guide protection strip and a back single air inlet guide protection strip, and obtains larger air outlet wind speed. The rotation direction cooperation of every preceding air-out direction protection strip and flabellum makes this fan obtain bigger air outlet air-out angle, makes the human body obtain bigger blowing area, and the body is felt more comfortablely.
After the technical scheme is adopted, the utility model discloses beneficial effect does: with this utility model a reduce streamlined fan frame fan of windage, preceding list air-out direction protecting strip is streamlined structure, and back list air inlet direction protecting strip is also streamlined, accords with hydrodynamics to the partial design of reduction air resistance that has the air current. The fan has simple structure, reduces the production cost, greatly increases the air quantity and improves the heat dissipation and blowing efficiency of the human body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic front view of the present invention;
fig. 2 is a schematic view of the back structure of the present invention;
fig. 3 is a schematic side view of the present invention;
FIG. 4 is a sectional view of the wind chamber structure of the present invention;
fig. 5 is a schematic view of the air-dispersing structure of the present invention.
Description of reference numerals: the wind power generation device comprises a front shell 1, a rear shell 2, a front air outlet net 3, a front single air outlet guide protection strip 4, a rear air inlet net 5, a rear single air inlet guide protection strip 6, a seven-blade fan blade outer rotor 8 with a brushless motor magnetic ring, a silica gel ear fixing position 9, a silica gel arm fixing position 10, a silica gel leg fixing position 11, a charging indicator lamp 12, a low-gear indicator lamp hole 13, a middle-gear indicator lamp hole 14, a high-gear indicator lamp hole 15, a function key 16, a folding support 17 and a folding hinge 18.
Detailed Description
Referring to fig. 1 to 5, the technical solution adopted by the present embodiment is: it contains preceding air outlet net 3, back air inlet net 5, seven leaf flabellums contain brushless motor magnetic ring external rotor 8, silica gel ear fixed position 9, preceding shell 1 and back shell 2, the inside central point of preceding air outlet net 3 puts and is provided with seven leaf flabellums and contains brushless motor magnetic ring external rotor 8, the inside central point of preceding air outlet net 3 puts and is provided with the brushless motor internal stator, the lower extreme of preceding air outlet net 3 lower extreme is provided with function button 16, silica gel ear fixed position 9 sets up on the outward flange of preceding air outlet net 3, preceding air outlet net 3 lower extreme is provided with preceding shell 1, the relative position back of preceding shell 1 is provided with back shell 2, the relative position back of preceding air outlet net 3 is provided with back air inlet net 5.
Further, the front air outlet net 3 is provided with twenty single air outlet guide protection strips 4, the rear air outlet net 5 is provided with twenty four rear single air inlet guide protection strips 6, and the cross section of the front air outlet net 3 is in a front windward shape, so that the air flow is facilitated by a sharp bullet head shape or a blade shape, and the air resistance is facilitated to be minimized. The section of the rear single air inlet guide protection strip 6 of the rear air inlet net 5 is not a disconnected plane commonly used by other manufacturers at present, but is in a spindle-shaped streamline shape conforming to hydromechanics, so that air can smoothly enter the rear single air inlet guide protection strip. The fan cavity consisting of the rear air inlet net 5 and the front air outlet net 3 does not generate tail vortex turbulent flow. The width of the front single air outlet guide protection strip 4 of the front air outlet net 3 is 1mm, which is the minimum width through practical verification, so that the structural strength of the front fan frame and the front shell is ensured, the height of the front single air outlet guide protection strip 4 is 3.2 mm, and the length-to-width ratio of the front shell 1 to the front air outlet net 3 is 3.2:1, so that the structural strength of the front air outlet net 3 and the front single air outlet guide protection strip 4 can be ensured, the wind resistance can be reduced, the air outlet is smooth, and the wind speed loss is minimum. The front single air outlet guide protection strip 4 of the front air outlet net 3 is combined with the inner air outlet side to form a spindle streamline, the single width of the rear single air inlet guide protection strip 6 of the rear air inlet net 5 is 1.2mm, the height of the rear single air inlet guide protection strip 6 is 2mm, the length-width ratio of the rear shell 2 to the rear air inlet net 5 is 2:1.2, and the air inlet resistance is favorably reduced on the premise of ensuring the structural strength of an air inlet.
The diameter of the seven-blade fan blade with the brushless motor magnetic ring outer rotor 8 is 67mm, the size is that the seven-blade fan blade with the brushless motor magnetic ring outer rotor 8 is the size which can obtain the best blowing effect by using a fan taking a two-inch brushless motor as power, and the tip is large in round angle to prevent sharp cutting.
Preceding list air-out direction protecting strip 4 of preceding air outlet net 3 disperse the array distribution for clockwise circumference, wide angle air-out, this clockwise circumference is dispersed the array distribution and is contained brushless motor magnetic ring external rotor 8 with the rotation direction wind-guiding design with seven flabellums, be favorable to making the fan air-out smooth and easy, the resistance reduces, preceding air outlet net 3 and seven flabellums contain brushless motor magnetic ring external rotor 8 and carry out the cooperation of aerohydrodynamics together, clockwise circumference is dispersed every fan frame that the array distributes and is made the air current of process change the direction a little, the direction of following preceding list air-out direction protecting strip 4 is dispersed a little, this fan obtains bigger fan frame air-out angle, make the human body obtain bigger blowing area, it is more comfortable to feel.
The distance between each front single air outlet guide protection strip 4 of the front air outlet net 3 can meet protection requirements, and the wind resistance of the air outlet net can be reduced, so that higher air outlet efficiency is obtained, and the optimal design of taking into account protection and reducing the wind resistance to improve air outlet effect is achieved.
The front shell 1 and the front air outlet net 3 are integrated, the rear shell 2 and the rear air outlet net 5 are also integrated, the lower end of the rear shell 2 is provided with a folding support 17, the folding support 17 is connected with the rear shell 2 through a folding hinge 18, the folding support 17 can enable the fan to stand laterally at any time and any place after being opened, the fan is enabled to stand on the desktop in a side mode and raises the air outlet front angle by fifteen degrees, the fan is placed on the desktop and directly aims at the face of a person to blow air, and the fan does not need to be held by hands for use.
Preceding shell 1 and 2 side hookups location in back shell be provided with the fixed position 10 of silica gel arm and the fixed position 11 of silica gel leg, the fixed position 10 setting of silica gel arm is in the upper end of the fixed position 11 of silica gel leg.
The upper end of the function key 16 is sequentially provided with a charging indicator lamp 12, a low-gear indicator lamp hole 13, a middle-gear indicator lamp hole 14 and a high-gear indicator lamp hole 15 in an arc arrangement, and the required wind speed is controlled by pressing the function key 16 according to the actual use requirement.
The utility model discloses a theory of operation: a streamline fan frame fan capable of reducing wind resistance reduces resistance of air inlet and air outlet through a unique front single air outlet guide protection strip and a back single air inlet guide protection strip, and obtains larger air outlet wind speed. The rotation direction cooperation of every preceding air-out direction protection strip and flabellum makes this fan obtain bigger air outlet air-out angle, makes the human body obtain bigger blowing area, and the body is felt more comfortablely.
After the technical scheme is adopted, the utility model discloses beneficial effect does: with this utility model a reduce streamlined fan frame fan of windage, preceding list air-out direction protecting strip is streamlined structure, and back list air inlet direction protecting strip is also streamlined, accords with hydrodynamics to the partial design of reduction air resistance that has the air current. The fan has simple structure, reduces the production cost, greatly increases the air quantity and improves the heat dissipation and blowing efficiency of the human body.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. The utility model provides a reduce streamlined fan frame fan of windage which characterized in that: the novel air outlet net comprises a front air outlet net (3), a rear air outlet net (5), seven blades containing brushless motor magnetic ring outer rotors (8), silica gel ear fixing positions (9), a front shell (1) and a rear shell (2), the inner center position of the front air outlet net (3) is provided with the seven blades containing the brushless motor magnetic ring outer rotors (8), the inner center position of the front air outlet net (3) is provided with a brushless motor inner stator, the lower end of the front air outlet net (3) is provided with a function button (16), the silica gel ear fixing positions (9) are arranged on the outer edge of the front air outlet net (3), the lower end of the front air outlet net (3) is provided with the front shell (1), the back of the relative position of the front shell (1) is provided with the rear shell (2), and the back of the relative position of the front air outlet.
2. A streamlined fan-frame fan for reducing wind resistance according to claim 1, wherein: the front air outlet net (3) is provided with twenty front single air outlet guide protection strips (4), the rear air outlet net (5) is provided with twenty four rear single air inlet guide protection strips (6), the single width of the front single air outlet guide protection strip (4) of the front air outlet net (3) is 1mm, the single height of the front single air outlet guide protection strip (4) is 3.2 mm, the length-to-width ratio of the front shell (1) to the front air outlet net (3) is 3.2:1, the single width of the rear single air inlet guide protection strip (6) of the rear air outlet net (5) is 1.2mm, the height of the rear single air inlet guide protection strip (6) is 2mm, and the single width-to-width ratio of the rear shell (2) to the rear air outlet net (5) is 2: 1.2.
3. A streamlined fan-frame fan for reducing wind resistance according to claim 1, wherein: the diameter of the fan blade containing the brushless motor magnetic ring outer rotor (8) is 67mm, and the fan blade containing the brushless motor magnetic ring outer rotor (8) takes a two-inch brushless motor as power.
4. A streamlined fan-frame fan for reducing wind resistance according to claim 1, wherein: the front single air outlet guide protection strip (4) of the front air outlet net (3) is clockwise circumferentially distributed in an array mode, wide-angle air outlet is achieved, and the clockwise circumferentially distributed array mode and the seven-blade fan blade outer rotor (8) containing the brushless motor magnetic ring wind guide design in the same rotating direction.
5. A streamlined fan-frame fan for reducing wind resistance according to claim 1, wherein: the front shell (1) and the front air outlet net (3) are integrated, the rear shell (2) and the rear air outlet net (5) are also integrated, a folding support (17) is arranged at the lower end of the rear shell (2), and a folding hinge (18) is arranged at one end of the folding support (17) and connected with the rear shell (2).
6. A streamlined fan-frame fan for reducing wind resistance according to claim 1, wherein: preceding shell (1) and back shell (2) side hookup location be provided with silica gel arm fixed position (10) and silica gel leg fixed position (11), silica gel arm fixed position (10) set up the upper end at silica gel leg fixed position (11).
7. A streamlined fan-frame fan for reducing wind resistance according to claim 1, wherein: the upper end of the function key (16) is sequentially provided with a charging indicator lamp (12), a low-gear indicator lamp hole (13), a middle-gear indicator lamp hole (14) and a high-gear indicator lamp hole (15) in an arc arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020069974.6U CN212003645U (en) | 2020-01-14 | 2020-01-14 | Streamline fan frame fan capable of reducing wind resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020069974.6U CN212003645U (en) | 2020-01-14 | 2020-01-14 | Streamline fan frame fan capable of reducing wind resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212003645U true CN212003645U (en) | 2020-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020069974.6U Active CN212003645U (en) | 2020-01-14 | 2020-01-14 | Streamline fan frame fan capable of reducing wind resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212003645U (en) |
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2020
- 2020-01-14 CN CN202020069974.6U patent/CN212003645U/en active Active
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