CN215860864U - Flow guiding fan - Google Patents
Flow guiding fan Download PDFInfo
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- CN215860864U CN215860864U CN202121517438.9U CN202121517438U CN215860864U CN 215860864 U CN215860864 U CN 215860864U CN 202121517438 U CN202121517438 U CN 202121517438U CN 215860864 U CN215860864 U CN 215860864U
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Abstract
The utility model discloses a flow guide type fan, wherein a circular airflow cavity is arranged inside a shell, an air outlet is formed in the inner wall of the circular airflow cavity, the air outlet penetrates through the shell, a fan used for sending airflow into the circular airflow cavity is connected inside the shell, the fan comprises an impeller, the impeller comprises a plurality of blades, a flow guide plate is connected on the circular airflow cavity, the flow guide plate extends to the air outlet from the inside of the circular airflow cavity, and the air outlet direction of the air outlet is inclined to the axial direction of the impeller. The diversion type fan effectively improves the air outlet smoothness and the air outlet quantity of the fan.
Description
Technical Field
The utility model relates to the technical field of fans, in particular to a flow guide type fan.
Background
The existing fans are mainly classified into axial flow fans and cross flow fans, and when the axial flow fans work, the blades push air to flow in the same direction as the shaft. The existing axial flow fan generally adopts straight-tube type air outlet, but when the impeller of the axial flow fan rotates, besides the main airflow which advances axially, secondary airflow which advances in a centrifugal direction can also be generated, the secondary airflow in the centrifugal direction cannot necessarily flow out of the frame body of the axial flow fan, part of the secondary airflow can directly impact the frame body to generate backflow, so that turbulent flow is formed between an air inlet and an air outlet of the frame body, further the main airflow of the axial flow fan is influenced, the loss of air volume and air pressure is caused, the problems of unsmooth air outlet and small air outlet volume of the axial flow fan are easy to occur, the airflow of the cross flow fan flows in the radial direction and finally flows out in the radial direction, the air inlet direction and the air outlet direction of the cross flow fan are in the same plane, the airflow needs to flow through the impeller twice, eccentric vortex turbulent flow is easy to form, the air outlet smoothness and the air volume are influenced, and the internal structure of the cross flow fan is complex, the flow resistance is larger, and the air output can be reduced.
Therefore, the existing fan has the problems of unsmooth air outlet and small air outlet quantity, and the use requirement cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a flow guide type fan which is beneficial to improving the air outlet smoothness and the air outlet quantity.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows:
the utility model provides a water conservancy diversion formula fan, includes the casing, the inside circular air current chamber that is provided with of casing, be provided with the air outlet on the inner wall in circular air current chamber, the air outlet runs through the casing, casing internal connection has and is used for sending into the air current the fan in circular air current chamber, the fan includes the impeller, the impeller includes a plurality of blades, be connected with the guide plate on the circular air current chamber, the guide plate is certainly the inside extension of circular air current chamber reaches the air outlet, the air-out direction of air outlet with the axial looks slope of impeller.
In one embodiment, the deflector is a flat plate or a curved plate.
In one embodiment, the air outlet direction of the air outlet is tangential to the flow guide plate.
In one embodiment, the axis of the circular airflow chamber coincides with the axis of the impeller, and a sealing cover is connected to one end of the circular airflow chamber.
In one embodiment, the casing is a circular cylinder, the circular cylinder includes a first cylinder, a second cylinder is connected to the first cylinder, the circular airflow cavity is formed inside the second cylinder, the second cylinder is provided with the air outlet, and the impeller is connected inside the first cylinder.
In one embodiment, a rib frame is connected in the first cylinder, and the rib frame comprises a plurality of ribs which are arranged along the radial direction of the first cylinder.
In one embodiment, the second barrel is removably coupled to the first barrel.
In one embodiment, the air outlet is rectangular and extends in the axial direction of the circular airflow chamber.
In one embodiment, the inner wall of the circular airflow chamber is provided with a plurality of air outlets, and at least one air outlet is provided with the deflector.
In one embodiment, the plurality of air outlets are circumferentially and uniformly distributed on the inner wall of the circular airflow cavity.
The utility model has the following beneficial effects: according to the flow guide type fan, the air outlet is matched with the flow guide plate, so that the loss of air volume and air pressure can be effectively reduced, and the air outlet smoothness and the air outlet volume are effectively improved.
Drawings
FIG. 1 is a schematic view of an angular three-dimensional structure of a induced draft fan according to the present invention;
FIG. 2 is a schematic three-dimensional view of another angle of the induced draft fan of FIG. 1;
FIG. 3 is a schematic two-dimensional structure of the induced draft fan of FIG. 1;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a schematic view of another arrangement of baffles;
fig. 6 is an exploded view of the induced draft fan shown in fig. 1;
FIG. 7 is a schematic structural view of the first barrel shown in FIG. 6;
fig. 8 is a schematic structural view illustrating a flow-guiding fan of the present invention having a plurality of outlets;
in the figure: 1. the air flow guide plate comprises an impeller, 11, blades, 2, a shell, 21, an air outlet, 22, a first cylinder, 23, a second cylinder, 24, a circular air flow cavity, 3, a guide plate, 4, a sealing cover, 5, a rib plate frame, 51 and rib plates.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Example one
As shown in fig. 1-3, the present embodiment discloses a flow-guiding fan, including a casing 2, a circular airflow cavity 24 is provided inside the casing 2, an air outlet 21 is provided on an inner wall of the circular airflow cavity 24, the air outlet 21 penetrates through the casing 2, a fan for sending airflow into the circular airflow cavity 24 is connected inside the casing 2, the fan includes an impeller 1, the impeller 1 includes a plurality of blades 11, a flow guide plate 3 is connected on the circular airflow cavity 24, the flow guide plate 3 extends from inside of the circular airflow cavity 24 to the air outlet 21, an air outlet direction of the air outlet 21 is inclined to an axial direction of the impeller 1, that is, an air outlet direction of the air outlet 21 is not parallel to an axial line of the impeller 1, so as to limit a disposition position of the air outlet 21.
The cooperation of guide plate 3 and air outlet 21 in the above-mentioned structure can make the air current that impeller 1 produced flow smoothly from this air outlet 21, especially makes the non-axial air current that impeller 1 produced can flow smoothly from this air outlet 21, avoids forming the vortex and influences amount of wind and wind pressure to the air output has been promoted. In addition, the circular airflow cavity 24 is circular, which can increase the stability of the airflow flowing therein, reduce the flow resistance, and make the airflow flow through the guide plate 3 into the air outlet 21 under the action of smaller flow resistance.
In one embodiment, as shown in fig. 4, the baffle 3 may be a curved plate to increase the smoothness and stability of the flow guiding.
In one embodiment, as shown in fig. 5, the baffle 3 may be a flat plate for easy processing.
In one embodiment, the air outlet direction of the air outlet 21 is tangent to the flow guide plate 3 to limit the setting angle of the outlet. As can be appreciated. If the flow guiding plate 3 can be a curved plate, the air outlet direction of the air outlet 21 is tangential to the connecting end of the curved plate and the circular airflow cavity 24, and if the flow guiding plate 3 can be a flat plate, the air outlet direction of the air outlet 21 is the extending direction of the flat plate. Through this structure, can make the air current in the circular air current chamber 24 finally flow out along its tangential after the guide plate 3 water conservancy diversion, increased the smooth and easy degree of air-out of air current. In one embodiment, the baffle 3 and the housing 2 may be integrally formed to reduce flow resistance to the airflow.
In one embodiment, as shown in fig. 1, the axis of the circular airflow chamber 24 coincides with the axis of the impeller 1, and one end of the circular airflow chamber 24 is closed by the cover 4. The sealing cover 4 is mainly used for reflecting axial airflow or other linear airflow inside the circular airflow cavity 24, changing the flow direction of the airflow, finally guiding the airflow by the guide plate 3 and then flowing out of the air outlet 21, and increasing the air output of the air outlet 21.
In one embodiment, the housing 2 may be a rectangular housing.
In one embodiment, as shown in fig. 6, the casing 2 may also be a circular cylinder, the circular cylinder includes a first cylinder 22, a second cylinder 23 is connected to the first cylinder 22, a circular airflow cavity 24 is formed inside the second cylinder 23, an air outlet 21 is formed on the second cylinder 22, and the impeller 1 is connected inside the first cylinder 22. Through the arrangement of the two cylinders, the installation of the impeller 1 is facilitated.
In one embodiment, as shown in fig. 7, the rib frame 5 is connected to the first cylinder 22, and the rib frame 5 includes a plurality of ribs 51, and the ribs 51 are arranged along a radial direction of the first cylinder 22 to support and reinforce the strength of the first cylinder 22.
In one embodiment, the first cylinder 22 and the second cylinder 23 may be integrally or separately disposed.
Preferably, the second cylinder 23 is detachably coupled to the first cylinder 22.
Further, the following detachable connection modes can be adopted between the second cylinder 23 and the first cylinder 22:
the second cylinder 23 and the first cylinder 22 can be connected through threads;
the second cylinder 23 and the first cylinder 22 may be connected by a snap or a clip.
In one embodiment, the air outlet 21 is rectangular, and the air outlet 21 extends along the axial direction of the circular airflow cavity 24, that is, the length direction of the air outlet 21 is parallel to the axis of the circular airflow cavity 24, so as to better ensure the air outlet effect.
In one embodiment, the blades 11 are helical blades.
When the flow guide fan of the embodiment works, the impeller 1 rotates to generate air flow, the air flow flows in the casing 2, and is finally discharged from the air outlet 21 after being guided by the guide plate 3.
Example two
Referring to fig. 8, the difference between the present embodiment and the first embodiment is: the inner wall of the circular airflow cavity 24 is provided with a plurality of air outlets 21, and at least one air outlet 21 is provided with a guide plate 3, so that the air output is increased better.
In one embodiment, the plurality of air outlets 21 on the inner wall of the circular airflow chamber 24 are circumferentially and uniformly distributed to improve the uniformity of the outlet air.
Above-mentioned water conservancy diversion formula fan of each embodiment, through air outlet 21 and guide plate 3's cooperation, can effectively reduce the loss of amount of wind and wind pressure, effectively promoted air-out smooth and easy degree and air output to the radiating effect has effectively been promoted. Compared with the conventional axial flow fan, the fan structure of the embodiment can enable non-axial airflow to be smoothly discharged from the air outlet 21, so that the overall air outlet smoothness and air outlet volume are improved; compare in cross flow fan, the fan structure of this embodiment is admitted air and is not in the coplanar with the exhaust direction, and the air current only need flow through the impeller once, is difficult for forming eccentric vortex, and in addition, inner structure can simplify, and the handling ease has effectively reduced the flow resistance to whole air-out smooth and easy degree and air output have been synthesized and have been promoted.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the utility model is all within the protection scope of the utility model. The protection scope of the utility model is subject to the claims.
Claims (10)
1. The utility model provides a water conservancy diversion formula fan, its characterized in that, includes the casing, the inside circular air current chamber that is provided with of casing, be provided with the air outlet on the inner wall in circular air current chamber, the air outlet runs through the casing, casing internal connection has and is used for sending into the air current the fan in circular air current chamber, the fan includes the impeller, the impeller includes a plurality of blades, be connected with the guide plate on the circular air current chamber, the guide plate is from the inside extension of circular air current chamber to the air outlet, the air-out direction of air outlet with the axial looks slope of impeller.
2. A fan as recited in claim 1, wherein said baffle is a flat or curved plate.
3. The fan of claim 1, wherein the outlet direction of the outlet is tangential to the baffle.
4. A fan as recited in claim 1, wherein the axis of the circular airflow chamber and the axis of the impeller coincide, and a cover is attached to one end of the circular airflow chamber.
5. The fan of claim 4, wherein the housing is a circular cylinder, the circular cylinder comprises a first cylinder, a second cylinder is connected to the first cylinder, the second cylinder forms the circular airflow chamber therein, the second cylinder is provided with the air outlet, and the impeller is connected to the first cylinder.
6. The fan of claim 5, wherein a rib cage is coupled within the first barrel, the rib cage including a plurality of ribs, the ribs each being arranged radially of the first barrel.
7. A fan as recited in claim 5, wherein the second cylinder is detachably coupled to the first cylinder.
8. A fan as recited in claim 1, wherein the outlet is rectangular and extends axially of the circular airflow chamber.
9. The fan of claim 1, wherein the circular airflow chamber has a plurality of outlets disposed on an inner wall thereof, and at least one of the outlets has the baffle disposed thereon.
10. The fan of claim 9, wherein the plurality of outlets are circumferentially spaced about the inner wall of the circular airflow chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121517438.9U CN215860864U (en) | 2021-07-05 | 2021-07-05 | Flow guiding fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121517438.9U CN215860864U (en) | 2021-07-05 | 2021-07-05 | Flow guiding fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215860864U true CN215860864U (en) | 2022-02-18 |
Family
ID=80332912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121517438.9U Active CN215860864U (en) | 2021-07-05 | 2021-07-05 | Flow guiding fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215860864U (en) |
-
2021
- 2021-07-05 CN CN202121517438.9U patent/CN215860864U/en active Active
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