CN218669866U - Cooling fan - Google Patents
Cooling fan Download PDFInfo
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- CN218669866U CN218669866U CN202222620624.6U CN202222620624U CN218669866U CN 218669866 U CN218669866 U CN 218669866U CN 202222620624 U CN202222620624 U CN 202222620624U CN 218669866 U CN218669866 U CN 218669866U
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- fan
- hub
- flow guide
- tray
- blades
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Abstract
The utility model discloses a cooling fan, it includes: a tray, a hub fixed at an outer periphery of the tray; the fan blades are arranged on the hub at intervals; each fan blade is provided with a suction surface and a pressure surface which are oppositely arranged; the guide ribs are arranged at the root parts of the pressure surfaces of the fan blades in a one-to-one correspondence manner; it still includes: the guide parts are arranged at the roots of the pressure surfaces of the fan blades in a one-to-one correspondence manner; one end of each flow guide component is connected with the end, close to the hub, corresponding to the flow guide rib, and the other end of each flow guide component smoothly transits and extends to the adjacent side face of the fan blade. The fan blade improves the integrity of the fan blades, effectively combs the trend of airflow in the running process of the fan, reduces the collision phenomenon of the airflow between the blades and further improves the cooling capacity of the fan.
Description
Technical Field
The utility model belongs to the automobile cooling system field relates to a cooling fan, concretely relates to cooling fan with high amount of wind root structure.
Background
With the rapid development of industrial technology, fans have been widely applied in various fields such as household appliances, ships, automobiles, aviation and the like, and various fans such as air conditioning fans, range hood fans, automobile cooling fans and the like are in the future.
Currently, the design flow of cooling fans tends to be standardized. However, as the demand for quality of life of human beings is higher and higher, the demand for driving environment is also continuously increased. The requirement of high-level quality of life tends to be at the cost of energy consumption, namely heat is generated, and in order to adapt to an economical and friendly novel life style, the requirement on the cooling capacity of the fan blade is higher and higher.
The traditional cooling fan cannot fully utilize the capability of improving the cooling effect of the flow guide rib because the flow guide rib belongs to the independent design on the blade, so that the cooling efficiency of the open fan is lower, and the cooling requirement of the current vehicle engine is more and more difficult to meet; meanwhile, the strength and the mode of the area are poor due to the large geometric drop between the blade and the root.
Disclosure of Invention
An object of the utility model is to provide a cooling fan to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a cooling fan, comprising:
a tray is arranged on the upper surface of the tray,
a hub fixed at an outer periphery of the tray;
the fan blades are arranged on the hub at intervals; each fan blade is provided with a suction surface and a pressure surface which are oppositely arranged;
the guide ribs are arranged at the root parts of the pressure surfaces of the fan blades in a one-to-one correspondence manner; defining two ends of each flow guiding rib as a hub approaching end and a hub far end respectively, wherein the deflection direction from the hub approaching end to the hub far end is opposite to the rotation direction of the fan;
it still includes:
the guide parts are arranged at the roots of the pressure surfaces of the fan blades in a one-to-one correspondence manner; one end of each flow guide component corresponds to the flow guide rib, the end close to the hub is connected, and the other end of each flow guide component smoothly transits and extends to the adjacent side face of the fan blade.
Optimally, the flow guide ribs are arc-shaped.
Optimally, the fan blade also comprises a flow guide ring, and the flow guide ring is formed at the outer end part of a plurality of fan blades.
Optimally, the tray is a steel sheet, and a plurality of bolt holes are formed in the steel sheet.
Further, the tray has still been seted up and has been dodged the groove, and is a plurality of the bolt hole distributes dodge the groove all around.
Preferably, the flow guide part is integrated with the corresponding flow guide rib.
Compared with the prior art, the beneficial effects of the utility model are that: the cooling fan of the utility model is matched with other structures by adding the flow guide part, thereby improving the integrity of the fan blades, effectively carding the trend of the airflow in the running process of the fan, reducing the collision phenomenon of the airflow between the blades and further improving the cooling capacity of the fan; simultaneously, because the wholeness of flabellum improves for the flabellum obtains better support, effectively improves the intensity and the mode of fan.
Drawings
Fig. 1 is a front view of the cooling fan of the present invention;
fig. 2 is a rear view of the cooling fan of the present invention.
Detailed Description
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.
The cooling fan shown in fig. 1 and 2 mainly includes a tray 1, a hub 2, fan blades 3, a flow guiding rib 4, a flow guiding member 5, and the like.
Wherein, the whole tray 1 is round and can be a steel sheet; the middle of which is open to form a bayonet for snap-fitting with other structures (i.e. the tray 1 has an inner diameter where the bayonet is provided). In this embodiment, the tray 1 is provided with a plurality of bolt holes 11 (specifically four bolt holes), and a plurality of avoidance grooves 12 are formed in the inner diameter of the tray, so that the bolt holes 11 are correspondingly distributed around the avoidance grooves 12, and the avoidance grooves 12 are connected with the bayonet in a smooth transition manner.
The hub 2 is fixed at the periphery of the tray 1 (the fixing mode is conventional, such as welding mode) so that the tray 1 is positioned at the center of the hub 2; when the tray 1 rotates, the hub 2 rotates synchronously.
The fan blades 3 are provided with a plurality of blades which are arranged on the hub 2 at intervals (usually, the blades are arranged on the periphery of the hub 2 at equal intervals, and the arrangement mode can be conventional welding fixation or integral molding), extend outwards along the radial direction of the hub 2 and are symmetrically distributed around the axial lead of the hub 2. Each fan blade 3 has a suction side and a pressure side arranged opposite to each other. In this embodiment, a structure similar to a "web" may be further disposed between two adjacent blades 3 as required.
The number of the flow guide ribs 4 is the same as that of the fan blades 3, and one flow guide rib 4 is arranged on one fan blade 3, so that the flow guide ribs 4 correspond to the fan blades 3 one by one. The flow guiding ribs 4 are correspondingly arranged (generally integrally formed or welded) at the root of the pressure surface of the fan blade 3, and are generally arc-shaped (a specific curvature radius is selected according to actual needs); in the present embodiment, the two ends of each of the flow guiding ribs 4 are defined as a hub end and a hub end, respectively, and the deflection direction from the hub end to the hub end is opposite to the rotation direction of the fan.
The number of the flow guide parts 5 is the same as that of the fan blades 3, and one flow guide part 5 is arranged on one fan blade 3, so that the flow guide parts 5 correspond to the fan blades 3 one by one (also correspond to the flow guide ribs 4 one by one). The flow guide 5 is also correspondingly disposed (typically integrally formed or welded) at the root of the pressure face of the fan blade 3. One end of each flow guiding component 5 is connected with the end, close to the hub, of the corresponding flow guiding rib 4, and the other end of each flow guiding component extends to the side face of the adjacent fan blade 3 (i.e. the fan blade 3 departing from the end far away from the hub) in a smooth transition manner. In the present embodiment, the flow guide member 5 is generally integrated with the corresponding flow guide rib 4.
In this embodiment, the cooling fan further includes a guide ring formed at an outer end portion of the plurality of fan blades 3 such that the outer end portion of the fan blade 3 is fixed to an inner surface of the guide ring.
This application cooling fan, the current fan structure of contrast has obvious advantage:
1. the effective use area of the blades is increased, the smoothness of the fan structure is optimized, unnecessary loss generated in the flowing process of airflow on the surfaces of the blades is reduced, and the performance of the fan is improved by more than 5%;
2. the root of the fan is easy to break in the operation process, and the flow guide part can convert the force originally born by the root into the force born by the root and the flow guide part together. Greatly reduced the fracture risk in the fan operation process.
The cooling fan improves the integrity of the fan blades, effectively combs the trend of airflow in the running process of the fan, reduces the collision phenomenon of the airflow between the blades and further improves the cooling capacity of the fan; simultaneously, because the wholeness of flabellum improves for the flabellum obtains better support, effectively improves the intensity and the mode of fan.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (6)
1. A cooling fan, comprising:
a tray (1) is arranged on the upper surface of the shell,
a hub (2), the hub (2) being fixed at the outer periphery of the tray (1);
the fan blades (3) are arranged on the hub (2) at intervals; each fan blade (3) is provided with a suction surface and a pressure surface which are oppositely arranged;
the guide ribs (4) are arranged at the root of the pressure surface of the fan blade (3) in a one-to-one correspondence manner; defining two ends of each flow guide rib (4) as a hub approaching end and a hub far end respectively, wherein the deflection direction from the hub approaching end to the hub far end is opposite to the rotation direction of the fan;
it is characterized in that it also comprises:
the guide parts (5) are arranged at the root parts of the pressure surfaces of the fan blades (3) in a one-to-one correspondence manner; one end of each flow guide component (5) corresponds to the flow guide rib (4), the end close to the hub is connected, and the other end of the flow guide component smoothly transits and extends to the side face of the adjacent fan blade (3).
2. The cooling fan according to claim 1, wherein: the flow guide ribs (4) are arc-shaped.
3. The cooling fan according to claim 1, wherein: the fan blade assembly further comprises a guide ring, wherein the guide ring is formed at the outer end part of the fan blades (3).
4. The cooling fan according to claim 1, wherein: the tray (1) is a steel sheet, and a plurality of bolt holes (11) are formed in the steel sheet.
5. The cooling fan according to claim 4, wherein: an avoiding groove (12) is further formed in the tray (1), and the bolt holes (11) are distributed around the avoiding groove (12).
6. The cooling fan according to claim 1, wherein: the flow guide part (5) and the corresponding flow guide rib (4) are integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222620624.6U CN218669866U (en) | 2022-09-30 | 2022-09-30 | Cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222620624.6U CN218669866U (en) | 2022-09-30 | 2022-09-30 | Cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218669866U true CN218669866U (en) | 2023-03-21 |
Family
ID=85563294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222620624.6U Active CN218669866U (en) | 2022-09-30 | 2022-09-30 | Cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218669866U (en) |
-
2022
- 2022-09-30 CN CN202222620624.6U patent/CN218669866U/en active Active
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