CN211501015U - Airflow generation structure and bladeless fan - Google Patents
Airflow generation structure and bladeless fan Download PDFInfo
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- CN211501015U CN211501015U CN201921921656.1U CN201921921656U CN211501015U CN 211501015 U CN211501015 U CN 211501015U CN 201921921656 U CN201921921656 U CN 201921921656U CN 211501015 U CN211501015 U CN 211501015U
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Abstract
The utility model discloses an airflow generation structure and bladeless fan, include: the filtering component is hollow inside and forms an accommodating space; and an airflow generating device erected within the accommodating space of the filter member; the filter member completely wraps the airflow generating device, the air inlet area is increased, and sealing is not needed to be arranged between the airflow generating structure and the filter member, so that the bladeless fan cannot be failed due to neglected installation or failure of the sealing device.
Description
Technical Field
The utility model relates to an air current takes place the structure field, in particular to air current takes place structure and bladeless fan
Background
At present, the existing bladeless fan has the air flow generation structure arranged in the filtering structure, the air flow generation structure and the inner wall of the filtering structure are sealed, and the air flow is prevented from flowing out from the gap between the air flow generation structure and the filtering structure after the air inlet of the base enters air.
Accordingly, there is a need for an airflow generating structure and a bladeless fan to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects existing in the prior art, the utility model aims to provide an airflow generating structure and a bladeless fan, wherein an airflow generating device is erected in an accommodating space formed by the hollow interior of a filtering component; the filter component completely wraps the airflow generating device, the air inlet area is increased, and a seal is not required to be arranged between the airflow generating structure and the filter component, so that the bladeless fan cannot be failed due to neglected installation or failure of the seal device.
In order to realize the basis the utility model discloses an above-mentioned purpose and other advantages provide a circumferentially arranged formula multilane trades power station, include:
the filtering component is hollow inside and forms an accommodating space; and
the airflow generating device is erected in the accommodating space of the filter member;
wherein the filter member completely encases the airflow generating device.
Preferably, the curved side of the filter member is integrally provided with an array of grids or meshes.
Preferably, the airflow generation device includes:
the drainage tube is hollow inside and the upper end and the lower end of the drainage tube are both opened so as to form an upper opening and a lower opening respectively;
and the power chamber is arranged in the drainage tube at intervals and coaxially to form an annular drainage cavity between the drainage tube and the power chamber.
Preferably, a rotating impeller coaxially arranged with the drainage tube is arranged in the annular drainage cavity, an impeller driver is arranged in the power chamber, and a power output end of the impeller driver is in transmission connection with the rotating impeller.
Preferably, the rotating impeller is located downstream of the gas flow in the draft tube.
Preferably, a fixing component for fixedly mounting the power chamber is fixedly connected between the power chamber and the drainage tube, and the fixing component is arranged at the upstream of the airflow in the drainage tube.
Preferably, the fixing component is at least two guide vanes fixedly connected between the power chamber and the drainage tube.
Preferably, the guide vane is capable of correcting the flow direction of the air flow deflected by the rotation of the impeller, so that the corrected flow direction of the air flow is consistent with the axial direction of the draft tube.
Preferably, the guide vane includes an introduction section and a discharge section which are sequentially arranged along a flow direction of the air flow, and a radius of curvature of the introduction section is set such that the flow direction of the air flow before rectification coincides with a tangential direction at an inlet of the introduction section.
Preferably, the radius of curvature of the lead-in section is smaller than the radius of curvature of the lead-out section.
Preferably, the lower opening of the draft tube is formed with, in order in the direction opposite to the flow direction of the air stream:
a tapered section having a cross-sectional diameter that is tapered in a direction opposite to the flow direction of the air flow; and
the diameter of the cross section of the gradually widening section is gradually enlarged in the direction opposite to the flowing direction of the air flow.
Furthermore, the present disclosure also discloses a bladeless fan, which includes any one of the airflow generation structures.
Compared with the prior art, the utility model, its beneficial effect is: by erecting the air flow generating device in the accommodating space formed by the hollow inside of the filtering component; the filter component completely wraps the airflow generating device, the air inlet area is increased, and a seal is not required to be arranged between the airflow generating structure and the filter component, so that the bladeless fan cannot be failed due to neglected installation or failure of the seal device.
Drawings
Fig. 1 is a cross-sectional view of a bladeless fan according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of an air flow generator according to an embodiment of the present invention;
fig. 3 is a partial sectional view of a guide vane according to an embodiment of the present invention.
Detailed Description
The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a more detailed description of the present invention, which will enable those skilled in the art to make and use the present invention.
In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.
In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc., are defined with respect to the configurations shown in the respective drawings, and in particular, "height" corresponds to a dimension from top to bottom, "width" corresponds to a dimension from left to right, "depth" corresponds to a dimension from front to rear, which are relative concepts, and thus may be varied accordingly depending on the position in which it is used, and thus these or other orientations should not be construed as limiting terms.
Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.
According to an embodiment of the present invention, with reference to the illustrations of fig. 1 and 2, it can be seen that the airflow generation structure includes:
a filter member 10 having a hollow interior to form an accommodating space; and
an air flow generating device 20 mounted in the accommodating space of the filter member;
wherein the filter member 10 completely encloses the airflow generating device 20.
The curved side of the filter member 10 is integrally provided with an array of grids or meshes.
The airflow generation device 20 includes:
a draft tube 210 which is hollow inside and has both open upper and lower ends to form an upper opening and a lower opening, respectively;
a power chamber 220 spaced and coaxially disposed within the draft tube 210 to form an annular draft tube 230 between the draft tube 210 and the power chamber 220.
The annular drainage cavity 230 is provided with a rotary impeller 240 coaxially arranged with the drainage tube 210, the power chamber 220 is provided with an impeller driver 250, and a power output end of the impeller driver 250 is in transmission connection with the rotary impeller 240, so that the rotary impeller 240 performs rotary motion around the axis of the drainage tube 210 under the driving of the impeller driver 250.
The rotating impeller 240 is disposed downstream of the gas flow within the draft tube 210.
A fixing component for fixedly mounting the power chamber 220 is fixedly connected between the power chamber 220 and the drainage tube 210, and the fixing component is arranged at the upstream of the air flow in the drainage tube 210.
The fixing component is at least two guide vanes 260 fixedly connected between the power chamber 220 and the draft tube 210, in a specific embodiment, the rotary impeller 240 is located at a lower opening of the draft tube 210, and the guide vanes 260 are located at an upper opening of the draft tube 210.
The guide vane 260 can correct the flowing direction of the air flow which is driven by the rotating impeller 240 to deflect, the deflecting direction of the rotating impeller 240 enables the air flow to flow upwards in a vortex shape clockwise or anticlockwise, the deflecting direction of the guide vane 260 is opposite to the deflecting direction of the rotating impeller 240, and the air flow rotating clockwise or anticlockwise is guided by the guide vane 260 in the opposite deflecting direction, so that the flowing direction of the corrected air flow is consistent with the axial direction of the draft tube 210, the smoothness of the air flow circulation is improved, and the noise is reduced.
Referring now to fig. 3, it can be seen that the guide vane 260 includes an inlet section 261 and an outlet section 262 sequentially arranged along the flow direction of the air flow, the radius of curvature of the inlet section 261 is set such that the flow direction of the air flow before rectification coincides with the tangential direction at the inlet of the inlet section 261, the radius of curvature of the inlet section 261 is smaller than that of the outlet section 262, and the inlet section 261 and the outlet section 262 are in smooth transition, thereby further solving the problem of noise generated by the air flow due to the unsmooth flow.
The lower opening of the draft tube 210 is sequentially formed with: a tapered section 211 having a cross-sectional diameter that gradually decreases in a direction opposite to the flow direction of the air flow; and a gradually widening section 212 having a cross-sectional diameter gradually increasing in a direction opposite to the flow direction of the air flow. The whole cross-sectional area of the draft tube 210 is gradually reduced and then gradually enlarged along the airflow flowing direction, the gradually widening section 212 has the advantage of enlarging the air intake, a large amount of airflow is gathered at the gradually widening section 212, and the intersection of the gradually narrowing section 211 and the gradually widening section 212 is the minimum interface caliber. Before entering the gradually widening section 212 or when entering the gradually widening section 212, the airflow movement follows the principle that the flow velocity is high at the small part of the cross section and low at the large part of the cross section when the fluid moves in the pipe, so that the airflow is accelerated continuously. When the narrow throat is reached, the flow velocity has exceeded the speed of sound. The transonic fluid does not follow the principle of "small cross section flow velocity is large and large cross section flow velocity is small" any more during the movement, but the opposite is true, the larger the cross section is, the faster the flow velocity is, so that the flow velocity of the air flow entering the splitter 30 is enhanced, and the user experience is improved.
In a specific embodiment, the airflow generating device 20 is completely placed in the accommodating space, and the curved side of the filter member 10 is provided with grids or meshes arranged in an array manner, so that the air inlet area of the airflow is increased, and the air purifying area is increased; there is no need to add a sealing device between the airflow generating device 20 and the filter member 10, so that the bladeless fan cannot be failed due to the neglected installation or failure of the sealing device.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application suitable for this invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (12)
1. An airflow generating structure, comprising:
a filter member (10) which is hollow inside to form a receiving space; and
an air flow generating device (20) mounted in the receiving space of the filter member (10);
wherein the filter member (10) completely encloses the airflow generating device (20).
2. The structure according to claim 1, characterized in that said filter element (10) is provided with a grid or mesh arranged in an array on the curved side.
3. The structure according to claim 1, characterized in that said airflow generating means (20) comprise:
a drainage tube (210) which is hollow inside and has both open upper and lower ends to form an upper opening and a lower opening, respectively;
a power chamber (220) spaced and coaxially disposed within the draft tube (210) to form an annular draft tube lumen (230) between the draft tube (210) and the power chamber (220).
4. The structure of claim 3, wherein the annular drainage cavity (230) is provided with a rotary impeller (240) coaxially arranged with the drainage tube (210), the power chamber (220) is provided with an impeller driver (250), and the power output end of the impeller driver (250) is in transmission connection with the rotary impeller (240).
5. The structure of claim 4, wherein the rotating impeller (240) is disposed downstream of the flow of gas in the draft tube (210).
6. The structure of claim 5, wherein a fixing component for fixedly mounting the power chamber (220) is fixedly connected between the power chamber (220) and the drainage tube (210), and the fixing component is arranged at the upstream of the air flow in the drainage tube (210).
7. The structure of claim 6, wherein the fixing means is at least two guide vanes (260) fixed between the power chamber (220) and the draft tube (210).
8. The structure of claim 7, wherein the guide vane (260) corrects the direction of the flow of the air deflected by the rotation of the impeller (240) so that the corrected direction of the flow of the air coincides with the axial direction of the draft tube (210).
9. The structure according to claim 7, wherein the guide vane (260) comprises an introduction section (261) and a discharge section (262) which are arranged in sequence along the flow direction of the air flow, and the radius of curvature of the introduction section (261) is set so that the flow direction of the air flow before rectification coincides with the tangential direction at the inlet of the introduction section (261).
10. The airflow generating structure according to claim 9, wherein a radius of curvature of said introduction section (261) is smaller than a radius of curvature of said discharge section (262).
11. The structure of generating air current according to claim 5, characterized in that the lower opening of said draft tube (210) is formed with, in sequence, in the direction opposite to the direction of flow of the air current:
a tapered section (211) having a cross-sectional diameter that gradually decreases in a direction opposite to the flow direction of the air flow; and
the diameter of the cross section of the gradually expanding section (212) is gradually expanded in the direction opposite to the flow direction of the air flow.
12. A bladeless fan comprising the airflow generating structure according to any one of claims 1 to 11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921921656.1U CN211501015U (en) | 2019-11-08 | 2019-11-08 | Airflow generation structure and bladeless fan |
| PCT/CN2020/124421 WO2021088697A1 (en) | 2019-11-08 | 2020-10-28 | Bladeless fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921921656.1U CN211501015U (en) | 2019-11-08 | 2019-11-08 | Airflow generation structure and bladeless fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211501015U true CN211501015U (en) | 2020-09-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921921656.1U Active CN211501015U (en) | 2019-11-08 | 2019-11-08 | Airflow generation structure and bladeless fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211501015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021088697A1 (en) * | 2019-11-08 | 2021-05-14 | 追觅科技(上海)有限公司 | Bladeless fan |
-
2019
- 2019-11-08 CN CN201921921656.1U patent/CN211501015U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021088697A1 (en) * | 2019-11-08 | 2021-05-14 | 追觅科技(上海)有限公司 | Bladeless fan |
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