CN211778198U - Cooling fan and fan blade assembly - Google Patents
Cooling fan and fan blade assembly Download PDFInfo
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- CN211778198U CN211778198U CN201922455669.0U CN201922455669U CN211778198U CN 211778198 U CN211778198 U CN 211778198U CN 201922455669 U CN201922455669 U CN 201922455669U CN 211778198 U CN211778198 U CN 211778198U
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Abstract
The utility model discloses a fan blade assembly, include the hub that changes and protect the wind ring, it puts to change the hub to be located central point, protect the wind ring with it links together through the blade that sets up between the two to change the hub, the blade with the windward side hookup location who protects the wind ring is provided with the arc. The utility model discloses a flabellum subassembly increases the arc through the windward side hookup location at blade and wind-protection ring, and the terminal air current of arc disturbance blade has changed the flow state of air, makes the difficult resonance that produces of air current to the noise of fan has been reduced. Simultaneously, increase the arc, also increased the intensity of fan, reduced the probability that the fan takes place the shake, promoted the rotational stability of fan, reduced the vibration and the noise of fan. The utility model also discloses a cooling fan.
Description
Technical Field
The utility model relates to a heat exchanger technical field, in particular to cooling fan and flabellum subassembly.
Background
The automobile cooling system adopts fan ventilation to cool the high-temperature cooling liquid in the radiator. At present, an electronic fan is mostly adopted for cooling the electric automobile, namely, a motor is used as a power source to drive a fan blade assembly to rotate.
The cooling fan is driven by the motor to rotate the fan blade assembly, stepless speed regulation can be realized, and the existing electric automobile is also provided with an electronic fan. Because the whole noise of the electric automobile is low, if the noise of the fan is too high, the noise of the whole automobile is more abrupt, and the use comfort is influenced.
SUMMERY OF THE UTILITY MODEL
One of the objects of the present invention is to provide a fan blade assembly, which can reduce the working noise of an electronic fan, thereby improving the comfort of use.
Another object of the present invention is to provide a cooling fan.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a fan blade assembly, includes the hub that changes and protects the wind ring, the hub that changes is located central point and puts, protect the wind ring with the hub links together through the blade that sets up between the two, the blade with the windward side hookup location who protects the wind ring is provided with the arc.
Optionally, the radian radius of the arc-shaped plate is 0.3 to 0.5 times of the length of the blade, the length of the arc-shaped plate connected with the blade is 0.2 to 0.3 times of the length of the blade, the length of the arc-shaped plate connected with the wind protection ring is 0.4 to 0.6 times of the width of the tail end of the blade, and the uplift angle α of the arc-shaped plate is 5 to 8 °.
Optionally, the end surface of the rotating hub is provided with a plurality of first heat dissipation holes and a plurality of second heat dissipation holes.
Optionally, the first heat dissipation hole is a strip-shaped hole, a square hole or a circular hole.
Optionally, the first heat dissipation holes are radially arranged along a rotation shaft connection hole on the rotation hub, and the rotation shaft connection hole is used for connecting a fan rotation shaft.
Optionally, a plurality of the second heat dissipation holes are uniformly distributed at the periphery of the first heat dissipation hole.
Optionally, the second heat dissipation holes are trapezoidal holes, narrow sides of the trapezoidal holes are arranged in the rotating advancing direction of the rotating hub, wide sides of the trapezoidal holes are arranged at the rear portions of the rotating hub, and the second heat dissipation holes are evenly distributed along the circumference of the axis of the rotating shaft of the fan.
Optionally, the wide side of the trapezoidal hole is provided with a diversion inclined plane.
Optionally, the angle of inclination of the diversion inclined plane is 45-60 °.
The utility model also provides a cooling fan, including motor supporting seat, motor and fan blade assembly, fan blade assembly is foretell fan blade assembly.
According to the above technical scheme, the utility model provides a flabellum subassembly increases the arc through the windward side hookup location at blade and protection wind ring, and the flow state of air has been changed to the terminal air current of arc disturbance blade to make the air current be difficult for producing resonance, thereby reduced the noise of fan. Simultaneously, increase the arc, also increased the intensity of fan, reduced the probability that the fan takes place the shake, promoted the rotational stability of fan, reduced the vibration and the noise of fan.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 creative efforts.
Fig. 1 is a schematic front view of a fan blade assembly according to an embodiment of the present invention;
fig. 2 is a schematic view of an axial structure of an angle of a fan blade assembly according to an embodiment of the present invention;
fig. 3 is a schematic view of an axial structure of another angle of the fan blade assembly according to the embodiment of the present invention;
FIG. 4 is a schematic view of a connection structure of a single blade and a rotating hub according to an embodiment of the present invention;
fig. 5 is a schematic view of a uplift angle of an arc plate provided by the embodiment of the present invention.
Detailed Description
One of the objects of the present invention is to provide a fan blade assembly, which can reduce the working noise of an electronic fan, thereby improving the comfort of use.
Another object of the present invention is to provide a cooling fan.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a fan blade assembly, including a rotating hub 3 and a wind protection ring 2, the rotating hub 3 is located at a central position, the wind protection ring 2 is connected with the rotating hub 3 through a blade 1 arranged between the two, and the blade 1 is provided with an arc plate 4 at the windward side connecting position of the wind protection ring 2.
Wherein, the blade 1 is provided with a plurality of, and the one end equipartition of a plurality of blade 1 is on the outer periphery of rotary hub 3, and the other end is connected on the medial surface of protecting wind ring 2. The wind protection ring 2 is a closed ring plate. The blades 1, the wind-protecting ring 2 and the rotating hub 3 are integrally formed or fixedly connected together after being formed in a split mode. The edge of the arc-shaped plate 4 which is not connected with the wind protection ring 2 and the blade 1 is an arc-shaped edge, and the radian radius of the arc-shaped edge is R, as shown in figure 1.
The utility model discloses a flabellum subassembly increases arc 4 through the windward side hookup location at blade 1 with protect wind ring 2, and the flow state of air has been changed to the terminal air current of arc 4 disturbance blades 1, makes the difficult production resonance of air current to the noise of fan has been reduced. Meanwhile, the arc-shaped plate 4 is added, so that the strength of the fan is increased, the probability of shaking of the fan is reduced, the rotation stability of the fan is improved, and the vibration and noise of the fan are reduced.
Specifically, the radian radius R of the arc edge of the arc plate 4 is 0.3-0.5 times of the length of the blade 1, the length of the arc plate 4 connected with the blade 1 is 0.2-0.3 times of the length of the blade 1, and the length of the arc plate 4 connected with the wind protection ring 2 is 0.4-0.6 times of the width of the tail end of the blade 1. As shown in fig. 5, the rising angle α of the arc plate 4 is 5 ° to 8 °. Through increasing 4 structures of arc, the fan amount of wind does not have the amount of wind of this structure and does not reduce, and the size of this amount of wind has been verified through experimental data: the average value of the air intake of the fan without the arc-shaped plate 4 structure is as follows: 3753.9m3The average value of the air intake of the fan with the same size and structure after the structure of the arc-shaped plate 4 is as follows: 3765.1m3The flow rate is almost constant, and the noise is reduced. The uplifting angle refers to an included angle between the arc-shaped plate 4 and a plane perpendicular to the rotating shaft of the fan.
In order to improve the heat dissipation performance of the fan, the end face of the rotating hub 3 is provided with a plurality of first heat dissipation holes 6 and a plurality of second heat dissipation holes 5, and the first heat dissipation holes 6 and the second heat dissipation holes 5 dissipate heat of a motor in the fan.
Specifically, first louvre 6 is rectangular shape hole, and a plurality of first louvre 6 is along the radial setting of pivot connecting hole 7 on the commentaries on classics hub 3, and pivot connecting hole 7 is used for connecting the fan pivot (not shown in the figure). It is understood that in other embodiments, the first heat dissipation hole 6 may be a circular hole or a square hole or a hole with other common shapes.
In one embodiment, the plurality of second heat dissipation holes 5 are uniformly distributed on the periphery of the first heat dissipation hole 6. Specifically, the second heat dissipation holes 5 are trapezoidal holes, and the arrangement of the trapezoidal holes is as follows: the narrow side of the trapezoidal hole is arranged along the rotation advancing direction of the hub 3, and the rear part is the wide side of the trapezoidal hole, as shown in fig. 4, and the arrow direction in fig. 4 is the rotation direction of the hub 3. The second heat dissipation holes 5 are uniformly distributed along the circumference of the axis of the fan rotating shaft. Through setting up second louvre 5, make the fan in the course of the work, along with the rotation of changeing hub 3, the air current can get into the motor of fan through second louvre 5, forms the air convection at the motor periphery of fan, and then cools off the motor in the fan. It is understood that the second heat dissipation hole 5 may be a hole with other shapes commonly used by those skilled in the art, and is not limited herein.
Further, the wide side of the trapezoidal hole is provided with a diversion inclined plane 51, that is, the diversion inclined plane 51 is arranged on the windward side of the trapezoidal hole. The inclination angle of the diversion inclined plane 51 is 45-60 degrees. When the rotary hub 3 rotates, the airflow entering the trapezoidal hole is guided by the diversion inclined plane 51 to flow into the inner cavity of the rotary hub 3, so that stronger airflow is formed, and the cooling efficiency is improved.
The utility model also provides a cooling fan, including motor supporting seat, motor and flabellum subassembly, the motor supporting seat is used for supporting the motor, the pivot of motor drives the fan pivot and rotates to the drive is connected the fan is changeed epaxial the flabellum subassembly rotates, the flabellum subassembly is the flabellum subassembly in above-mentioned each embodiment. Since the cooling fan has the fan blade assemblies in the above embodiments, the cooling fan also has the advantages described above, and thus, the description thereof is omitted.
In the description of the present solution, it is to be understood that the terms "upper", "lower", "vertical", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present solution.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a fan blade assembly, includes hub (3) and protects wind ring (2), hub (3) are located central point and put, protect wind ring (2) with hub (3) link together through setting up blade (1) between the two, its characterized in that, blade (1) with the windward side hookup location of protecting wind ring (2) is provided with arc (4).
2. The fan blade assembly according to claim 1, wherein the arc radius of the arc-shaped plate (4) is 0.3-0.5 times the length of the blade (1), the length of the arc-shaped plate (4) connected with the blade (1) is 0.2-0.3 times the length of the blade (1), the length of the arc-shaped plate (4) connected with the wind protection ring (2) is 0.4-0.6 times the width of the tail end of the blade (1), and the rising angle α of the arc-shaped plate (4) is 5-8 °.
3. The fan blade assembly according to claim 1, wherein the end surface of the hub (3) is provided with a plurality of first heat dissipating holes (6) and a plurality of second heat dissipating holes (5).
4. The fan blade assembly of claim 3, wherein the first heat dissipation hole (6) is a rectangular hole, a square hole or a circular hole.
5. The fan blade assembly of claim 4, wherein a plurality of the first heat dissipation holes (6) are radially arranged along a rotation shaft connection hole (7) on the rotation hub (3), and the rotation shaft connection hole (7) is used for connecting a fan rotation shaft.
6. The fan blade assembly of claim 3, wherein a plurality of the second heat dissipation holes (5) are uniformly distributed on the periphery of the first heat dissipation hole (6).
7. The fan blade assembly of claim 6, wherein the second heat dissipation holes (5) are trapezoidal holes, the narrow sides of the trapezoidal holes are arranged in the forward direction of rotation of the rotating hub (3), the wide sides of the trapezoidal holes are arranged in the rear part of the rotating hub, and the second heat dissipation holes (5) are uniformly distributed along the circumference of the axis of the rotating shaft of the fan.
8. The fan blade assembly of claim 7, wherein the wide side of the trapezoidal aperture is provided with a flow guiding bevel (51).
9. Fan blade assembly according to claim 8, wherein the angle of inclination of the flow-guiding ramp (51) is 45 ° -60 °.
10. A cooling fan comprising a motor support base, a motor and a fan blade assembly, wherein the fan blade assembly is as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922455669.0U CN211778198U (en) | 2019-12-30 | 2019-12-30 | Cooling fan and fan blade assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922455669.0U CN211778198U (en) | 2019-12-30 | 2019-12-30 | Cooling fan and fan blade assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211778198U true CN211778198U (en) | 2020-10-27 |
Family
ID=72977814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922455669.0U Active CN211778198U (en) | 2019-12-30 | 2019-12-30 | Cooling fan and fan blade assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211778198U (en) |
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2019
- 2019-12-30 CN CN201922455669.0U patent/CN211778198U/en active Active
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