CN211975473U - Ducted circulating fan and floor fan - Google Patents
Ducted circulating fan and floor fan Download PDFInfo
- Publication number
- CN211975473U CN211975473U CN201922445620.7U CN201922445620U CN211975473U CN 211975473 U CN211975473 U CN 211975473U CN 201922445620 U CN201922445620 U CN 201922445620U CN 211975473 U CN211975473 U CN 211975473U
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- fan
- ducted
- air inlet
- air
- turbine assembly
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- 241000886569 Cyprogenia stegaria Species 0.000 claims abstract description 18
- 238000005452 bending Methods 0.000 claims abstract description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241000561734 Celosia cristata Species 0.000 description 1
- 241000883990 Flabellum Species 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The utility model discloses a ducted circulation fan, which comprises a fan shell, an air inlet cover, an air outlet cover, a fixed guide vane and a turbine assembly; the fan shell is of a cylindrical structure; the air inlet cover and the air outlet cover are respectively arranged at two ends of the fan shell, the air inlet guide vanes with a plurality of bending directions and opposite rotation directions of the turbine assembly are uniformly arranged on the air inlet cover, the air outlet guide vanes with a plurality of bending directions and the same rotation directions of the turbine assembly are uniformly arranged on the air outlet cover, each fixed guide vane is arranged in the fan shell and is positioned between the turbine assembly and the air outlet cover, and each fixed guide vane is straight and is arranged along the radial direction of the fan shell. Through the gradual change of three-layer stator angle, make the air current can progressively convert more into the air-out pressure with speed in fan case inside to improve the air supply distance, make this duct circulation fan have the advantage of high wind pressure, big amount of wind, be applicable to indoor and outdoor. The utility model discloses still disclose a fan that falls to ground with duct circulation fan.
Description
Technical Field
The utility model relates to a fan technical field especially relates to a long duct circulation fan of air supply distance and have fan that falls to ground of this duct circulation fan.
Background
The circulating fan is used for stirring air to enable the air to form convection circulation, the working principle of the circulating fan is that the air at the rear is sucked into the circulating fan, and the air flow is blown out through the high-speed operation of the fan, so that the air convection movement is realized.
The existing circulating fan is limited by the structure, so that the air supply distance is not long enough, and the use requirement of the outdoor environment cannot be met, therefore, most circulating fans are only suitable for indoor use, and moreover, the floor type fan formed by the circulating fan is relatively large in size, so that the circulating fan is inconvenient to carry and cannot conveniently meet the outdoor use requirement.
Therefore, it is necessary to provide a ducted circulating fan and a floor fan with a long air supply distance, a small volume and a convenient carrying capability, so as to solve the problem of single application scenario of the circulating fan in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a duct circulation fan that air supply distance is big, the noise is little.
Another object of the present invention is to provide a floor fan with a large air supply distance, a small noise, a small volume and a convenient carrying.
In order to achieve the above purpose, the technical scheme of the utility model is that: the ducted circulating fan comprises a fan shell, an air inlet cover, an air outlet cover, a fixed guide vane and a turbine assembly; wherein the fan shell is of a cylindrical structure; a turbine assembly is mounted within the fan housing; the air inlet cover is arranged at one end of the fan shell, a plurality of bent air inlet guide vanes are uniformly arranged on the air inlet cover, and the bending direction of each air inlet guide vane is opposite to the rotating direction of the turbine assembly; the air outlet cover is arranged at the other end of the fan shell, a plurality of bent air outlet guide vanes are uniformly arranged on the air outlet cover, and the bending direction of each air outlet guide vane is the same as the rotation direction of the turbine assembly; each stationary vane install in the fan housing and be located turbine subassembly with go out between the fan housing, and each stationary vane all is the straight board form, each stationary vane all follows fan housing's radial setting.
Preferably, a mounting seat for mounting the turbine assembly is arranged in the fan housing, and two ends of each fixed guide vane are respectively connected to the mounting seat and the inner wall of the fan housing.
Preferably, a support column is further arranged in the fan shell, two ends of the support column are respectively connected to the mounting seat and the inner wall of the fan shell, a conical air inlet angle is formed on the side face, facing the air inlet cover, of the support column, and the conical air inlet angle is used for reducing noise and reducing air resistance.
Preferably, the inner wall of the fan shell is provided with an installation part for installing an operation key, the side surface of the installation part, which is opposite to the air inlet cover, forms a gentle slope windward surface, and the gentle slope windward surface is favorable for reducing wind resistance and noise.
Preferably, the ratio of the length of the ducted circulation fan to the diameter of the fan casing is 1: 0.618.
Preferably, one side of the mounting seat, which is far away from the turbine assembly, is further provided with a cylindrical connecting shaft, the air outlet cover is sleeved on the connecting shaft, and the cylindrical connecting shaft can effectively break up vortex of the air outlet, so that air outlet is smoother.
Preferably, the air outlet cover comprises an inner ring and an outer ring which are concentrically arranged, two ends of each air outlet guide vane are respectively connected to the inner ring and the outer ring, the inner ring is sleeved on the connecting shaft, and the outer ring is detachably connected with the fan shell.
Preferably, the turbine assembly includes a motor installed in the installation portion, an impeller connected to the motor, and a blade disposed on the impeller, and a blade tail of the blade is zigzag or wavy.
Preferably, the fan blades are even-numbered pieces.
Correspondingly, the utility model also provides a floor fan, which comprises a base, a column, an oscillating motor and the duct circulating fan; wherein, a lithium battery is arranged in the base; the upright post is arranged on the base and is of a telescopic structure; the ducted circulation fan is arranged at the top end of the upright post and is electrically connected with the lithium battery; the oscillating motor is connected with a fan shell of the ducted circulating fan and used for driving the ducted circulating fan to oscillate.
Compared with the prior art, because the utility model discloses a duct circulation fan is equipped with the air inlet cover, go out the fan housing and a plurality of stationary vane, and, the air inlet covers the air inlet stator that is equipped with the rotation opposite direction of a plurality of crooked directions and the impeller of turbine subassembly, go out the air-out and cover the air-out stator that is equipped with the rotation same direction of a plurality of crooked directions and the impeller of turbine subassembly, and stationary vane is straight platelike and locates between turbine subassembly and the play fan housing, consequently, through the gradual change of air inlet stator, stationary vane, air-out stator three-layer stator angle, make the air current can progressively convert more speed into air-out pressure inside the fan housing, thereby improve this duct circulation fan's air supply distance greatly, make this duct circulation fan have the advantage of high wind pressure, big amount of wind, not only be applicable to indoorly, can realize the free air supply of outdoor environment more, and the windage resistance of duct circulation fan is, The noise is low. Correspondingly, have the utility model discloses the fan that falls to the ground of duct circulation fan also has the same effect, and should fall to the ground the structure of fan succinct, small, the transport of being convenient for, makes things convenient for outdoor environment to use.
Drawings
Fig. 1 is a schematic structural view of the ducted circulation fan of the present invention.
Fig. 2 is a schematic view of the structure of fig. 1 from another angle.
Fig. 3 is a rear view of fig. 1.
Fig. 4 is a front view of fig. 1.
Fig. 5 is an exploded view of fig. 1.
Fig. 6 is a schematic view of the structure of fig. 5 from another angle.
Fig. 7 is a schematic view of another angle of the fan housing of fig. 5.
Fig. 8 is a cross-sectional view of fig. 1.
Fig. 9 is a schematic structural view of a floor fan according to the present invention.
Detailed Description
Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements throughout.
Referring to fig. 1 to 6, a ducted circulation fan 100 according to the present invention includes a fan housing 110, an air inlet cover 120, an air outlet cover 130, a stationary vane 140, and a turbine assembly 150. The fan housing 110 is of a cylindrical structure, the turbine assembly 150 is installed in the fan housing 110, the turbine assembly 150 includes a motor 151, an impeller 152 connected to the motor 151, and a fan blade 153 disposed on the impeller 152, and the motor 151 drives the impeller 152 and the fan blade 153 on the impeller 152 to rotate, thereby forming an air flow. The air inlet cover 120 is installed at one end of the fan casing 110 close to the fan blades 153, and a plurality of curved air inlet guide vanes 121 are uniformly arranged on the air inlet cover 120, and the curved direction of each air inlet guide vane 121 is opposite to the rotation direction of the impeller 152. The air outlet cover 130 is installed at the other end of the fan housing 110, and a plurality of curved air outlet guide vanes 131 are uniformly arranged on the air outlet cover 130, and the curved direction of each air outlet guide vane 131 is the same as the rotation direction of the impeller 152. Each stationary guide vane 140 is installed in the fan casing 110 at intervals and located between the turbine assembly 150 and the air outlet cover 130, and each stationary guide vane 140 is in a straight plate shape, and each stationary guide vane 140 is arranged along the radial direction of the fan casing 110. Therefore, the air inlet guide vane 121, the fan blade 153, the fixed guide vane 140 and the air outlet guide vane 131 are sequentially arranged in the direction of the air flow formed by the ducted circulating fan 100, and the angles of the three layers of guide vanes are gradually changed, so that the air flow can gradually convert more speed into air outlet pressure inside the fan casing 110, thereby increasing the air supply distance of the ducted circulating fan 100.
Referring to fig. 5-6, in the present invention, the impeller 152 is provided with an even number of fan blades 153, so that the ratio of the height to the diameter of the fan blades 153 is larger than that of the conventional fan blades, thereby greatly increasing the wind pressure. In a specific embodiment, four fan blades 153 are arranged on the impeller 152, and compared with the structure of three or five fan blades in the prior art, the noise of the four fan blades 153 is smaller than that of the five fan blades, and the wind pressure and the wind volume are larger than those of the three fan blades, thereby increasing the wind blowing distance of the ducted circulation fan 100.
Further, the leaf tail 1531 of every flabellum 153 all is cockscomb structure or wavy to improve air-out velocity distribution, even air-out, miniaturized wake vortex, thereby reduce the local noise that the trailing edge secondary current arouses, make the utility model discloses a duct circulation fan 100's noise is less.
Referring to fig. 2-3 and 5-6, in the present invention, the air inlet cover 120 further includes an annular outer edge 122 and a fixing portion 123 disposed at the middle portion of the annular outer edge 122, the diameter of the annular outer edge 122 corresponds to the diameter of the fan casing 110, and the air inlet cover 120 is detachably connected to the fan casing 110 through the annular outer edge 122; in addition, the fixing portion 123 is circular and is disposed concentrically with the annular outer edge 122, and both ends of the inlet guide vane 121 are connected to the fixing portion 123 and the annular outer edge 122, respectively. After the air inlet cover 120 is installed on the fan housing 110, the center of the fixing portion 123 coincides with the center of the rotation shaft of the impeller 152, the straight line where the radius of the fixing portion 123 and the annular outer edge 122 is M, if the rotation direction of the impeller 152 is W (see fig. 3), the end of each air inlet guide vane 121 connected to the fixing portion 123 is tangent to the straight line M, and the bending direction of the other end of the air inlet guide vane 121 is opposite to the direction W.
Referring to fig. 1 and fig. 4-6, the air-out housing 130 further includes an inner ring 133 and an outer ring 132 concentrically arranged, the outer ring 132 protrudes backward for a certain length to be detachably connected to the fan housing 110, and two ends of each air-out guide vane 131 are respectively connected to the inner ring 133 and the outer ring 132; when the air outlet cover 130 is installed on the fan housing 110, the inner ring 133 and the outer ring 132 are both overlapped with the center of the rotation shaft of the impeller 152, if the radius of the inner ring 133 and the radius of the outer ring 132 are M, and the rotation direction of the impeller 152 is W (see fig. 4), the end of each air outlet guide vane 131 connected with the inner ring 133 is tangent to the line M, and the bending direction of the other end of the air outlet guide vane 131 is the same as the W direction.
Referring to fig. 5-8, a mounting seat 111 and two support pillars 112 are disposed in the fan housing 110, the mounting seat 111 and the fan housing 110 are concentrically disposed, the mounting seat 111 is used for mounting a motor 151, and the two support pillars 112 are respectively connected between the mounting seat 111 and an inner wall of the fan housing 110 to fix the mounting seat 111. In the present invention, two supporting pillars 112 are disposed along a diameter direction of the fan casing 110, and the supporting pillars 112 not only support the mounting seat 111, but also are disposed with mounting grooves 1121 (see fig. 8) in the two supporting pillars 112, the mounting grooves 1121 communicate with the inside of the mounting seat 111, the mounting grooves 1121 are used for arranging electric wires, etc., so that the internal structure of the fan casing 110 is simple; in addition, the side of the support column 112 facing the air inlet cover 120 forms a conical air inlet angle 1122 (see fig. 5 and 7), and the design of the conical air inlet angle 1122 is beneficial to reducing noise and reducing wind resistance.
Additionally, the utility model discloses in be equipped with four stator 140, every stator 140's both ends are connected respectively in the inner wall of mount pad 111 and fan casing 110, and four stator 140 are the symmetry setting along two support column 112 place diameters.
As shown in fig. 1-2 and 5-9, the inner wall of the fan casing 110 is further provided with a mounting portion 113, the mounting portion 113 is formed by the outer wall of the fan casing 110 being recessed toward the inside thereof, the mounting portion 113 is used for accommodating an operation panel and a control circuit board thereof, the operation panel is provided with an operation key 160, and the operation key 160 is exposed out of the outer wall of the fan casing 110 (see fig. 1-2) for a user to operate; in addition, the side of the mounting portion 113 facing the air inlet cover 120 forms a gentle slope-shaped windward surface 1131 (see fig. 7-8), and the gentle slope-shaped windward surface 1131 is beneficial to reducing wind resistance and noise.
With continued reference to fig. 7-8, in the present invention, the mounting portion 113 is disposed on the diameter of the two supporting pillars 112, that is, one end of one of the supporting pillars 112 is connected to the bottom of the mounting portion 113, and the mounting groove 1121 inside the supporting pillar 112 is connected to the mounting portion 113 for facilitating the circuit connection.
As shown in fig. 6-7, the mounting base 111 is further connected with a cylindrical connecting shaft 114, the connecting shaft 114 protrudes from a side away from the motor 151, and a diameter of the connecting shaft 114 matches a diameter of the inner ring 133 of the air-out cover 130, after the air-out cover 130 is mounted on the fan housing 110, the inner ring 133 is sleeved on the connecting shaft 114, and the cylindrical connecting shaft 114 can effectively break up vortex of the air outlet, so that air outlet is smoother, and air outlet distance is increased.
Referring again to fig. 8, in the present invention, the ratio of the total length of the ducted circulation fan 100 to the diameter of the fan housing 110 is preferably 1:0.618, so that the efficiency of the motor 151 is matched to the overall airflow to achieve the best efficiency.
Referring to fig. 9, the present invention further provides a floor fan 1, which includes a ducted circulation fan 100, an oscillating motor 200, a column 300, and a base 400, wherein the structure of the ducted circulation fan 100 is as described above, and thus, the description thereof will not be repeated.
The utility model discloses an in the fan 1 that falls to the ground, be equipped with the lithium cell in the base 400, stand 300 installs in base 400 and is extending structure, duct circulation fan 100 is installed on the top of stand 300, this duct circulation fan 100 is connected with the lithium cell electricity in the base 400, and duct circulation fan 100's fan housing 110 still links to each other with the motor 200 of shaking the head, consequently, drive duct circulation fan 100 swing through the motor 200 of shaking the head, the flexible height of fan 100 that circulates to the duct through stand 300 is adjusted, it is more convenient to make this fan 1 that falls to the ground's use. In addition, the power can be supplied to the ducted circulation fan 100 through the lithium battery, and the ducted circulation fan 100 has a long air outlet distance and low noise, so that the floor fan 1 can be conveniently used outdoors.
In summary, since the ducted circulating fan 100 of the present invention is provided with the air inlet cover 120, the air outlet cover 130 and the plurality of stationary vanes 140, and the air inlet cover 120 is provided with the plurality of air inlet vanes 121 having a bending direction opposite to the rotation direction of the impeller 152 of the turbine assembly 150, the air outlet cover 130 is provided with the plurality of air outlet vanes 131 having a bending direction identical to the rotation direction of the impeller 152 of the turbine assembly 150, and the stationary vanes 140 are straight and disposed between the turbine assembly 150 and the air outlet cover 130, the air flow can gradually convert more speed into air outlet pressure inside the fan housing 110 by the gradual change of the three-layer vane angles of the air inlet vanes 121, the stationary vanes 140, and the air outlet vanes 131, so as to greatly increase the air supply distance of the ducted circulating fan 100, and thus the ducted circulating fan 100 has the advantages of high air pressure and high air volume, and is not only suitable for indoor use, but also can realize free air supply in outdoor environment, and the ducted circulation fan 100 has a small wind resistance and low noise. Correspondingly, have the utility model discloses duct circulation fan 100's fan 1 that falls to the ground also has the same effect, and this fan 1 that falls to the ground's structure is succinct, small, the transport of being convenient for, makes things convenient for outdoor environment to use.
The structure of the rest of the floor fan 1 according to the present invention is conventional and well known to those skilled in the art, and will not be described in detail herein.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.
Claims (10)
1. A ducted circulation fan, comprising:
the fan shell is of a cylindrical structure;
a turbine assembly mounted within the fan housing;
the air inlet cover is arranged at one end of the fan shell, a plurality of bent air inlet guide vanes are uniformly arranged on the air inlet cover, and the bending direction of each air inlet guide vane is opposite to the rotating direction of the turbine assembly;
the air outlet cover is arranged at the other end of the fan shell, a plurality of bent air outlet guide vanes are uniformly arranged on the air outlet cover, and the bending direction of each air outlet guide vane is the same as the rotating direction of the turbine assembly;
a plurality of stationary vane, each stationary vane install in the fan housing and be located turbine subassembly with go out between the fan housing, and each stationary vane all is the straight board form, each stationary vane all follows fan housing's radial setting.
2. The ducted cycle fan in accordance with claim 1, wherein a mounting seat for mounting said turbine assembly is provided in said fan housing, and both ends of each of said stay vanes are connected to said mounting seat and an inner wall of said fan housing, respectively.
3. The ducted circulation fan according to claim 2, wherein a support column is further provided in the fan housing, both ends of the support column are connected to the mounting seat and the inner wall of the fan housing, respectively, and a side of the support column facing the air inlet cover forms a tapered air inlet angle.
4. The ducted circulation fan as claimed in claim 1, wherein the inner wall of the fan housing is provided with a mounting portion for mounting an operation button, and a side of the mounting portion facing the air inlet cover forms a gentle slope windward side.
5. The ducted circulating fan of claim 1 wherein the ratio of the length of the ducted circulating fan to the diameter of the fan casing is 1: 0.618.
6. The ducted circulation fan according to claim 2, wherein a cylindrical connection shaft is further provided at a side of the mounting seat away from the turbine assembly, and the wind outlet cover is fitted over the connection shaft.
7. The ducted circulation fan according to claim 6, wherein the outlet housing includes an inner ring and an outer ring concentrically arranged, both ends of each outlet guide vane are respectively connected to the inner ring and the outer ring, the inner ring is fitted over the connection shaft, and the outer ring is detachably connected to the fan casing.
8. The ducted circulation fan according to claim 4, wherein the turbine assembly includes a motor installed at the installation part, an impeller connected to the motor, and a blade provided at the impeller, and a blade tail of the blade is formed in a zigzag or wavy shape.
9. The ducted circulation fan of claim 8 wherein the fan blades are an even number of blades.
10. A floor fan, comprising:
the base is internally provided with a lithium battery;
the upright post is arranged on the base and is of a telescopic structure;
the ducted circulation fan according to any one of claims 1 to 9, which is installed at the top end of the column and electrically connected to the lithium battery;
and the oscillating motor is connected to the fan shell of the ducted circulating fan and used for driving the ducted circulating fan to oscillate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922445620.7U CN211975473U (en) | 2019-12-30 | 2019-12-30 | Ducted circulating fan and floor fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922445620.7U CN211975473U (en) | 2019-12-30 | 2019-12-30 | Ducted circulating fan and floor fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211975473U true CN211975473U (en) | 2020-11-20 |
Family
ID=73369129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922445620.7U Expired - Fee Related CN211975473U (en) | 2019-12-30 | 2019-12-30 | Ducted circulating fan and floor fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211975473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022193869A1 (en) * | 2021-03-15 | 2022-09-22 | 追觅科技(上海)有限公司 | Rotor, fan, and stand fan |
-
2019
- 2019-12-30 CN CN201922445620.7U patent/CN211975473U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022193869A1 (en) * | 2021-03-15 | 2022-09-22 | 追觅科技(上海)有限公司 | Rotor, fan, and stand fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201120 |