CN220452286U - Fan blade and fan - Google Patents
Fan blade and fan Download PDFInfo
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- CN220452286U CN220452286U CN202321975661.7U CN202321975661U CN220452286U CN 220452286 U CN220452286 U CN 220452286U CN 202321975661 U CN202321975661 U CN 202321975661U CN 220452286 U CN220452286 U CN 220452286U
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- 230000000694 effects Effects 0.000 abstract description 16
- 238000007664 blowing Methods 0.000 abstract description 5
- 241000883990 Flabellum Species 0.000 description 6
- 230000006872 improvement Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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 belongs to the technical field of fans, and discloses a fan blade and a fan, wherein the fan blade comprises: a hub and a plurality of blades uniformly distributed along a circumference of the hub; the blade comprises a blade root and a blade tail, wherein the blade tail is twisted compared with the blade root, and the blade roots of a plurality of blades are connected with the hub. According to the fan blade disclosed by the utility model, the tail part of the fan blade is twisted compared with the root part of the fan blade, the twisted part has a converging effect on the entering air flow, so that the air flow blown out by the fan blade is more concentrated, the blowing effect is improved, the air flow is formed, the axial pressure of the twisted part is increased, the air flow flowing into the blades can flow out at a higher speed, the air supply speed of the fan blade is further increased, the air efficiency is improved, and the user experience is improved.
Description
Technical Field
The utility model belongs to the technical field of fans, and particularly relates to a fan blade and a fan.
Background
In recent years, people increasingly pursue more convenient life, in order to meet the demands of practical fans for outdoor activities or other life scenes, various fans are appeared on the market, wherein the fans generally comprise fan blades, however, the fan blades of the fans incline at an angle of 10 degrees with the horizontal plane, when in use, the fan blades drive air to flow through the inclined fan blades when rotating, so that wind is realized, but the wind outlet effect is limited, so that the blowing effect of the fans can be influenced to a certain extent, and the practicability is limited.
Disclosure of Invention
Accordingly, the present utility model is directed to a fan blade and a fan for improving the blowing effect of the fan.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
a fan blade, comprising:
a hub and a plurality of blades uniformly distributed along a circumference of the hub; the blade comprises a blade root and a blade tail, wherein the blade tail is twisted compared with the blade root, and the blade roots of a plurality of blades are connected with the hub.
As a further improvement of the utility model, the blade further comprises a first side and a second side, the thickness of the first side of the blade being greater than the thickness of the second side of the blade; the distance from the first side of the blade root to the second side of the blade root is a first width in the range of greater than or equal to 16.0mm and less than or equal to 16.5mm; the distance from the first side of the blade tail to the second side of the blade tail is a second width in the range of greater than or equal to 15.0mm and less than or equal to 15.5mm.
As a further improvement of the utility model, the included angle between the connecting line of the first side of the blade root and the second side of the blade root and the radial plane direction of the hub is a first included angle, and the range of the first included angle is more than or equal to 25 degrees and less than or equal to 75 degrees; the included angle between the connecting line of the first side of the blade tail and the second side of the blade tail and the connecting line of the first side of the blade root and the second side of the blade root is a second included angle, and the range of the second included angle is more than or equal to 5 degrees and less than or equal to 10 degrees.
As a further development of the utility model, the number of blades is 9 to 15.
As a further improvement of the utility model, the hub comprises an annular main body and a wind guide cone connected with the annular main body, and the annular main body and the wind guide cone are connected to form a cavity.
As a further improvement of the utility model, the center of the air guide cone is provided with a circular concave table, the concave table comprises a bottom plate and an inner cone wall connected with the bottom plate, and the inner cone wall is connected with the annular main body through an outer cone wall.
As a further development of the utility model, the side of the base plate facing the cavity is provided with an annular bulge, the diameter of which is smaller than the diameter of the base plate.
As a further development of the utility model, the inner conical wall is provided with a plurality of webs on the side facing the cavity, which webs are connected to the outer conical wall.
As a further improvement of the utility model, the joint of the outer cone wall and the inner cone wall and the joint of the inner cone wall and the bottom plate are arc-shaped chamfer angles;
the width of the joint of the connecting plate and the inner cone wall and the width of the joint of the connecting plate and the outer cone wall are both larger than the central width of the connecting plate, and the joint of the connecting plate and the inner cone wall and the joint of the connecting plate and the outer cone wall are arc-shaped chamfer angles.
The utility model also provides a fan, which comprises any one of the fan blades.
Compared with the prior art, the fan blade provided by the utility model has the advantages that the tail part of the fan blade is twisted compared with the root part, the twisted part has a converging effect on the entering air flow, so that the air flow blown out by the fan blade is more concentrated, the blowing effect is improved, the air flow is formed at the twisted part, the air flow flowing efficiency of the fan blade is improved, the wind efficiency is improved, and the user experience is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, but not all embodiments, and other drawings obtained according to these drawings without inventive effort to those skilled in the art are all within the scope of the protection of the present application.
FIG. 1 is a perspective view of a fan blade according to an embodiment of the present utility model;
FIG. 2 is another perspective view of a fan blade according to an embodiment of the present utility model;
FIG. 3 is an exploded perspective view of a fan according to an embodiment of the present utility model;
fig. 4 is a perspective view of a fan according to an embodiment of the present utility model.
The wind-guiding device comprises a hub 1, an annular main body 11, a wind-guiding cone 12, a connecting plate 121, an outer cone wall 122, an inner cone wall 123, a bottom plate 123, an annular bulge 124, a blade 2, a blade root 21, a blade tail 22, a first side 23, a second side 24, a fan 3, a front cover 31, a rear cover 32, a switch button 33, an air outlet 34, an air inlet 35, a charging port 36, a power supply 37 and a driving motor 38.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In order that the present disclosure may be more fully described and fully understood, the following description is provided by way of illustration of embodiments and specific examples of the present utility model; this is not the only form of practicing or implementing the utility model as embodied. The description covers the features of the embodiments and the method steps and sequences for constructing and operating the embodiments. However, other embodiments may be utilized to achieve the same or equivalent functions and sequences of steps. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It should be understood that the terms first, second, and the like in the description and the claims of the present utility model and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.
In the description of the present utility model, the terms "front," "rear," "top," "inner," "outer," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements in question must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.
Referring to fig. 1-4, the present utility model provides a fan blade and a fan, which are used for solving the problem of how to improve the efficiency of airflow flowing by the fan blade, improve the wind efficiency, and improve the practicability of the fan.
Example 1
A fan blade comprising a hub 1 and a plurality of blades 2 evenly distributed along the circumference of the hub 1; as shown in fig. 1 and 2, the blade 2 includes a blade root 21 and a blade tail 22, the blade tail 22 being twisted with respect to the blade root 21, and a plurality of blade roots 21 of the blade are connected to the hub 1. When the fan blade is used, the tail 22 of the fan blade is twisted compared with the root 21 of the fan blade, the twisted part plays a role in converging the entering air flow, so that the air flow blown out by the fan blade is more concentrated, the blowing effect is improved, the use experience of a user is increased, the twisted part plays a role in converging the entering air flow, the air flow blown out by the fan blade is more concentrated, the axial pressure is increased, the air flow is formed, the air flow flowing efficiency of the fan blade is improved, and the air efficiency is improved. The blade root 21 of the blade is connected with the hub 1, so that the stability of the blade 2 during rotation of the fan is enhanced, and the stability of the fan blade is improved.
Further, the blade 2 further comprises a first side 23 and a second side 24, the thickness of the first side 23 of the blade 2 being greater than the thickness of the second side 24 of the blade 2; the distance from the first side 23 of the blade root 21 to the second side 24 of the blade root 21 is a first width in the range of greater than or equal to 16.0mm and less than or equal to 16.5mm; the distance from the first side 23 of the blade tail 22 to the second side 24 of the blade tail 22 is a second width in the range of greater than or equal to 15.0mm and less than or equal to 15.5mm. Preferably, the first width is 16mm and the second width is 15.2mm. When the air guide device is used, the first side 23 faces the air inlet side, the second side 24 faces the air outlet side, the thickness of the first side 23 of the blade 2 is larger than that of the second side 24 of the blade 2, the flowing speed of air flow from the first side 23 to the second side 24 after entering the blade 2 is accelerated, the air guide effect is improved, and the air exhaust effect is improved. The distance from the first side 23 of the blade root 21 to the second side 24 of the blade root 21 is greater than the distance from the first side 23 of the blade tail 22 to the second side 24 of the blade tail 22, so that the blade tail 22 has smaller volume and lighter weight than the blade root 21, the resistance of the blade 2 in the rotation process of the blade is reduced, the energy consumption is reduced, the rotation rate of the blade is improved, and the air supply rate is further improved.
The included angle between the connecting line of the first side 23 of the blade root 21 and the second side 24 of the blade root 21 and the radial plane direction of the hub 1 is a first included angle, and the range of the first included angle is greater than or equal to 25 degrees and less than or equal to 75 degrees; the angle between the line of the first side 23 of the blade tail 22 and the second side 24 of the blade tail 22 and the line of the first side 23 of the blade root 21 and the second side 24 of the blade root 21 is a second angle, and the second angle is in the range of greater than or equal to 5 degrees and less than or equal to 10 degrees. Preferably, the first contained angle is 75 degrees, and during the use, the second contained angle is towards user torsion angle, first contained angle is blade 2 is in installation angle on the wheel hub 1, through setting up the installation inclination towards the user, has increased the area size of blade 2 under the unanimous condition of wheel hub 2 size, and then has improved the air inlet volume, the second contained angle is blade afterbody 22 is compared the torsion angle of blade root 21, twists through setting up towards the user, increases axial pressure at torsion part for the air current that flows into between blade 2 can flow out with bigger speed, and then increases the air supply rate of flabellum, improves the wind efficiency, promotes user experience.
Specifically, the number of the blades is 9 to 15, and preferably, the number of the blades in this embodiment is 12, and the specific number can be adjusted by those skilled in the art according to the actual working environment.
Further, the hub 1 comprises an annular main body 11 and a wind guiding cone 12 connected with the annular main body 11, and the annular main body 11 and the wind guiding cone 12 are connected to form a cavity. Can make it with blade 2 is more firm through setting up annular main part 11, through setting up and connect annular main part 11's wind cone 12 has reduced the air current receives resistance when the flabellum is the air inlet in the use, wind cone 12 has played the wind-guiding effect, and then promotes the air supply effect, promotes user experience. The cavity formed by connecting the annular main body 11 and the wind guide cone 12 can be used for accommodating and installing components such as a motor when the fan blade is installed.
Specifically, the center of the air guiding cone 12 is provided with a circular concave table 13, the concave table 13 comprises a bottom plate 123 and an inner cone wall 122 connected with the bottom plate 123, and the inner cone wall 122 and the annular main body 11 are connected through an outer cone wall 121. By arranging the outer conical wall 121 connected with the annular main body 11, a conical air guiding surface is provided for the air inlet side, so that the entering air flow can enter between the blades 2 along the outer conical wall 121, and the wind efficiency is improved.
Further, an annular protrusion 124 is disposed on a side of the bottom plate 123 facing the cavity, and a diameter of the annular protrusion 124 is smaller than a diameter of the bottom plate 123. Through setting up annular bulge 124 can provide axial positioning for the flabellum rotates, can the annular bulge 124 endotheca is established the rotation axis, has improved flabellum axial pivoted stability, simultaneously, annular bulge 124 with the bottom plate 123 junction is smooth curved surface, consequently, annular bulge 124 can weaken the bottom plate 123 receives the influence of air inlet side air current to overall stability, makes the flabellum whole more firm.
Specifically, the inner cone wall 122 is provided with a plurality of connection plates 14 towards the cavity, and the connection plates 14 are connected with the outer cone wall 121. By arranging the connecting plate 14 to connect the inner cone wall 122 and the outer cone wall 121, the connection stability between the outer cone wall 121 and the inner cone wall 122 is enhanced, and the overall stability of the fan blade is improved.
The connection between the outer cone wall 121 and the inner cone wall 122 and the connection between the inner cone wall 122 and the bottom plate 123 are arc-shaped chamfer angles, and by arranging the connection between the outer cone wall 121 and the inner cone wall 122 and the connection between the inner cone wall 122 and the bottom plate 123 are arc-shaped chamfer angles, the fan blade can be more easily demoulded during production and manufacture, and is not easy to scratch and scratch relative to right-angle edges during later installation and use, and resistance to air flow in the process of air inlet can be reduced, so that the air efficiency is improved; the width of the joint between the connecting plate 14 and the outer cone wall 121 and the width of the joint between the connecting plate 14 and the inner cone wall 122 are both larger than the width of the center of the connecting plate 14, and the joint between the connecting plate 14 and the inner cone wall 122 and the joint between the connecting plate 14 and the outer cone wall 121 are arc-shaped chamfer angles. Through setting up connecting plate 14 with outer cone wall 121 junction width with connecting plate 14 with the junction width of interior cone wall 122 is all greater than connecting plate 14 center department width for connecting plate 14's junction has bigger external force bearing's ability, connecting plate 14 with outer cone wall 121 reaches the convex chamfer of outer cone wall junction, both can realize the production and make the easy drawing of patterns more, also can disperse the wind-force that interior cone wall 122 receives with outer cone wall 121, has strengthened the connection the reliability of interior cone wall 122 with outer cone wall 121 simultaneously, improves the steadiness of flabellum.
In some embodiments, the fan blade further comprises a blade tail 22 connected with the blade 2, and a fixing ring arranged on the outer side of the blade 2 in a surrounding manner, and the fixing ring is arranged, so that on one hand, when the fan blade rotates at a high speed, the blade tail 22 of the plurality of blades 2 cannot collide to cause potential safety hazards, the stability of the blade 2 is enhanced, on the other hand, the outflow of the airflow in the circumferential direction during the rotation of the fan blade is avoided, the wind gathering effect is achieved, and the user experience is improved.
Example 2
In this embodiment, a fan comprising the fan blade of embodiment 1 is disclosed. As shown in figures 3 and 4 of the drawings,
the fan further comprises a shell 3 connected with the hub 1, the shell 3 comprises a front cover 31 and a rear cover 32, a switch key 33 is arranged on the front cover 31, a charging port 36 is arranged on the rear cover 32, a power supply 37 is arranged in one side, far away from the hub 1, of the shell 3, an air outlet 34 and an air inlet 35 are arranged on the shell, the air guide cone 12 faces the air inlet 35, a driving motor 38 is arranged between the air outlet 34 and the hub 1, the switch key 33, the charging port 36 and the driving motor 38 are respectively electrically connected with the power supply 37, the charging port 36 is used for charging the power supply 37, and the switch key 33 is used for controlling the driving motor 38 to be electrically connected with the power supply 37; when the wind turbine is used, the switch key 33 is pressed to enable the driving motor 38 to be electrically connected with the power supply 37, the blades 2 rotate along with the hub 1 under the driving of the driving motor 38, and then air flow is driven to flow from the air inlet 35 to the air outlet 34, so that the wind effect is achieved, and the use experience of a user is improved. Preferably, the switch button 33 is disposed on a side of the fan housing 3 facing the user, so as to be convenient for the user to operate; the charging port 36 is provided on a side of the fan housing 3 facing away from the user. In some embodiments, a dust cap may be further disposed on the charging port 36 to prevent dust, water, etc. from entering the charging port.
According to the fan blade and the fan provided by the utility model, compared with the blade root 21, the resistance of air flowing through the fan blade is reduced by twisting the blade tail 22 of the fan blade, and air flow is formed at the twisted part, so that the air flow efficiency of the blade 2 is improved, the wind efficiency is improved, and the user experience is improved; the thickness of the first side 23 of the blade 2 is larger than that of the second side 24 of the blade, so that the resistance of air entering the blade is further reduced, the axial pressure of the torsion part is increased, the air flow flowing into the blades 2 can flow out at a higher speed, and the air supply speed of the fan blades is increased; the distance from the first side 23 of the blade root 21 to the second side 24 of the blade root 21 is greater than the distance from the first side 23 of the blade tail 22 to the second side 24 of the blade tail 22, so that the width of the blade tail 22 is smaller than the width of the blade root 21, the whole weight of the fan is reduced, and the energy consumption for rotating the fan is reduced; by arranging the wind guide cone 12 on the hub 1, the wind outlet effect is improved; through setting up convex chamfer with outer cone wall 121 and interior cone wall 122 junction and interior cone wall 122 and bottom plate 123 junction, both convenient drawing of patterns when processing has also reduced the resistance to wind, promotes user experience.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. The fan blade is characterized by comprising a hub and a plurality of blades uniformly distributed along the circumferential direction of the hub; the blade comprises a blade root and a blade tail, wherein the blade tail is twisted compared with the blade root, and the blade roots of a plurality of blades are connected with the hub.
2. The fan blade of claim 1, wherein:
the blade further includes a first side and a second side, the thickness of the first side of the blade being greater than the thickness of the second side of the blade; the distance from the first side of the blade root to the second side of the blade root is a first width in the range of greater than or equal to 16.0mm and less than or equal to 16.5mm; the distance from the first side of the blade tail to the second side of the blade tail is a second width in the range of greater than or equal to 15.0mm and less than or equal to 15.5mm.
3. The fan blade of claim 2, wherein:
the included angle between the connecting line of the first side of the blade root and the second side of the blade root and the radial plane direction of the hub is a first included angle, and the range of the first included angle is more than or equal to 25 degrees and less than or equal to 75 degrees; the included angle between the connecting line of the first side of the blade tail and the second side of the blade tail and the connecting line of the first side of the blade root and the second side of the blade root is a second included angle, and the range of the second included angle is more than or equal to 5 degrees and less than or equal to 10 degrees.
4. The fan blade of claim 1, wherein the number of said blades is 9 to 15.
5. The fan blade of claim 1, wherein the hub comprises an annular body and a wind cone coupled to the annular body, the annular body and the wind cone being coupled to form a cavity.
6. The fan blade of claim 5, wherein the center of the wind cone is provided with a circular concave platform, the concave platform comprises a bottom plate and an inner cone wall connected with the bottom plate, and the inner cone wall is connected with the annular main body through an outer cone wall.
7. The fan blade of claim 6, wherein the side of the bottom plate facing the cavity is provided with an annular protrusion, and the diameter of the annular protrusion is smaller than the diameter of the bottom plate.
8. The fan blade of claim 7, wherein a plurality of connection plates are arranged on the side of the inner cone wall facing the cavity, and the connection plates are connected with the outer cone wall.
9. The fan blade of claim 8, wherein the connection of the outer cone wall and the inner cone wall and the connection of the inner cone wall and the bottom plate are arc-shaped chamfers;
the width of the joint of the connecting plate and the outer cone wall and the width of the joint of the connecting plate and the outer cone wall are both larger than the central width of the connecting plate, and the joint of the connecting plate and the outer cone wall and the joint of the connecting plate and the inner cone wall are arc-shaped chamfer angles.
10. A fan, characterized in that: the fan comprising a blade according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321975661.7U CN220452286U (en) | 2023-07-25 | 2023-07-25 | Fan blade and fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321975661.7U CN220452286U (en) | 2023-07-25 | 2023-07-25 | Fan blade and fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220452286U true CN220452286U (en) | 2024-02-06 |
Family
ID=89737455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321975661.7U Active CN220452286U (en) | 2023-07-25 | 2023-07-25 | Fan blade and fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220452286U (en) |
-
2023
- 2023-07-25 CN CN202321975661.7U patent/CN220452286U/en active Active
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