CN211550025U - Low-noise centrifugal fan - Google Patents
Low-noise centrifugal fan Download PDFInfo
- Publication number
- CN211550025U CN211550025U CN201820580837.1U CN201820580837U CN211550025U CN 211550025 U CN211550025 U CN 211550025U CN 201820580837 U CN201820580837 U CN 201820580837U CN 211550025 U CN211550025 U CN 211550025U
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- CN
- China
- Prior art keywords
- centrifugal fan
- impeller
- fan body
- air intake
- support frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a low noise centrifugal fan, including impeller and centrifugal fan body, one side welding of centrifugal fan body has the support frame, the top of support frame is provided with the motor, the motor rotates with the impeller through the pivot to be connected, one side welding of centrifugal fan body has the centrifugal fan shell, the air intake has been seted up to one side of centrifugal fan body, the impeller is located the inside of air intake, one side of centrifugal fan shell is located the inside of air intake and waits the angle to rotate through the pivot and connect a plurality of purification layers, the interior table wall of air intake bonds and has rough layer. The utility model discloses in, the angle such as all around of impeller is rotated through the pivot and is connected with the purification layer, after the impeller produced wind, under the effect of wind force, drives and purifies the layer and rotate to realize purifying the purification of 360 degrees full angles in layer, strengthened its purifying effect.
Description
Technical Field
The utility model relates to the technical field of machinery, especially, relate to a low noise centrifugal fan.
Background
The centrifugal fan is a driven fluid machine which is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and draught of boilers and industrial kilns, cooling and ventilation of air conditioning equipment and household electrical equipment, drying and sorting of grains, air supply of wind tunnels and inflation and propulsion of air cushion boats and the like.
However, the existing centrifugal fan still has certain disadvantages in use, and when the centrifugal fan is used, the air purification effect of the centrifugal fan is poor, and the caliber of the air outlet pipe cannot be changed, so that the air outlet rate of the air outlet pipe cannot be changed at will, and the application range is small.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a low-noise centrifugal fan.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a low-noise centrifugal fan comprises an impeller and a centrifugal fan body, wherein a support frame is welded on one side of the centrifugal fan body, the top of the supporting frame is provided with a motor which is rotationally connected with the impeller through a rotating shaft, one side of the centrifugal fan body is welded with a centrifugal fan shell, one side of the centrifugal fan body is provided with an air inlet, the impeller is positioned inside the air inlet, one side of the centrifugal fan shell is positioned in the air inlet and is connected with a plurality of purification layers in an equal-angle way through a rotating shaft, the inner surface wall of the air inlet is bonded with a rough layer, one end of the top of the centrifugal fan body is communicated with an air outlet pipe, the two sides of the inside of the air outlet pipe are rotatably connected with inclined plates through hinges, the inside of the air outlet pipe is symmetrically and spirally connected with bolts, one end of the bolt extends to the outside of the air outlet pipe, and the other end of the bolt is welded on one side of the inclined plate.
As a further description of the above technical solution:
the air outlet pipe is of a hollow cuboid structure.
As a further description of the above technical solution:
and the top of the support frame is provided with a cooling fin at the position below the motor.
As a further description of the above technical solution:
the bottom tangent line of the support frame and the bottom tangent line of the centrifugal fan body are positioned on the same straight line.
As a further description of the above technical solution:
the bottom of the purification layer is in contact with one side of the centrifugal fan shell.
The utility model discloses in, at first, the angle such as all around of impeller is rotated through the pivot and is connected with the purification layer, after the impeller produces wind, under the effect of wind power, it rotates to drive the purification layer, thereby realize purifying the purification of 360 degrees full angles in layer, the purifying effect thereof is strengthened, secondly, the inside symmetry that goes out the tuber pipe rotates and is connected with the swash plate, and one side welding of swash plate has the bolt of swivelling joint on the tuber pipe, the rotation bolt, can change the distance between two swash plates, thereby change the bore size of tuber pipe, realize the function of adjusting the tuber pipe wind speed wantonly, centrifugal fan's application scope has been enlarged, finally, the interior table wall bonding of air intake has the coarse layer, can play the effect of making an uproar of falling, realize centrifugal fan's low noise.
Drawings
Fig. 1 is a schematic view of an internal structure of a low-noise centrifugal fan according to the present invention;
fig. 2 is a schematic structural view of a low-noise centrifugal fan provided by the present invention;
fig. 3 is the schematic view of the internal structure of the air outlet pipe of the present invention.
Illustration of the drawings:
1-air outlet pipe, 2-air inlet, 3-impeller, 4-centrifugal fan shell, 5-centrifugal fan body, 6-purification layer, 7-rotating shaft, 8-motor, 9-radiating fin, 10-support frame, 11-rough layer, 12-bolt and 13-inclined plate.
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.
Referring to fig. 1-3, a low-noise centrifugal fan comprises an impeller 3 and a centrifugal fan body 5, wherein a support frame 10 is welded on one side of the centrifugal fan body 5, a motor 8 is arranged on the top of the support frame 10, the motor 8 is rotatably connected with the impeller 3 through a rotating shaft, a centrifugal fan shell 4 is welded on one side of the centrifugal fan body 5, an air inlet 2 is formed in one side of the centrifugal fan body 5, the impeller 3 is positioned inside the air inlet 2, one side of the centrifugal fan shell 4 is positioned inside the air inlet 2 and is connected with a plurality of purification layers 6 through a rotating shaft 7 in an equal angle manner, a rough layer 11 is bonded on the inner surface wall of the air inlet 2, one end of the top of the centrifugal fan body 5 is communicated with an air outlet pipe 1, inclined plates 13 are rotatably connected on two sides inside the air outlet pipe 1 through hinges, bolts 12 are symmetrically and rotatably connected inside the, the other end of the bolt 12 is welded to one side of the swash plate 13.
The air outlet pipe 1 is of a hollow cuboid structure, the top of the support frame 10 is located below the motor 8 and provided with cooling fins 9, the bottom tangent of the support frame 10 and the bottom tangent of the centrifugal fan body 5 are located on the same straight line, and the bottom of the purification layer 6 is in contact with one side of the centrifugal fan shell 4.
The bottom of centrifugal fan body 5 bonds and has the slipmat that is used for increasing frictional force, can increase the frictional force between centrifugal fan body 5 and the ground to the stability that centrifugal fan body 5 placed is strengthened.
The working principle is as follows: during the use, starter motor 8, drive impeller 3 and rotate, at the in-process that impeller 3 rotated and produced wind, wind exerted force to purifying layer 6, rotate under the effect of pivot 7, thereby carry out 360 degrees full angle's air purification, wind can reduce the noise to a certain extent through coarse layer 11, last wind blows off through going out tuber pipe 1, adjusting bolt 12, drive swash plate 13 and rotate, thereby can change the bore size of going out tuber pipe 1, thereby can adjust the speed that wind blew off wantonly, centrifugal fan's application scope has been enlarged.
The above, only be the concrete implementation of the preferred embodiment 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, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a low noise centrifugal fan, includes impeller (3) and centrifugal fan body (5), its characterized in that, one side welding of centrifugal fan body (5) has support frame (10), the top of support frame (10) is provided with motor (8), motor (8) rotate with impeller (3) through the pivot and are connected, one side welding of centrifugal fan body (5) has centrifugal fan shell (4), air intake (2) have been seted up to one side of centrifugal fan body (5), impeller (3) are located the inside of air intake (2), one side of centrifugal fan shell (4) is located the inside of air intake (2) and waits the angle and rotates through pivot (7) and connect a plurality of purification layers (6), the interior surface wall bonding of air intake (2) has coarse layer (11), the top one end intercommunication of centrifugal fan body (5) has air-out pipe (1), the inside both sides of going out tuber pipe (1) are rotated through the hinge and are connected with swash plate (13), the inside symmetry of going out tuber pipe (1) has connect bolt (12) soon, the one end of bolt (12) extends to the outside of going out tuber pipe (1), and the other end of bolt (12) welds in one side of swash plate (13).
2. A low noise centrifugal fan according to claim 1, wherein said air outlet pipe (1) is a hollow rectangular parallelepiped structure.
3. A low noise centrifugal fan according to claim 1, wherein the top of the support frame (10) is provided with cooling fins (9) at a position below the motor (8).
4. A centrifugal fan with low noise according to claim 1, wherein the bottom tangent of the support frame (10) is aligned with the bottom tangent of the centrifugal fan body (5).
5. A low noise centrifugal fan according to claim 1, wherein the bottom of the cleaning layer (6) is in contact with one side of the centrifugal fan housing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820580837.1U CN211550025U (en) | 2018-04-23 | 2018-04-23 | Low-noise centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820580837.1U CN211550025U (en) | 2018-04-23 | 2018-04-23 | Low-noise centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211550025U true CN211550025U (en) | 2020-09-22 |
Family
ID=72487240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820580837.1U Expired - Fee Related CN211550025U (en) | 2018-04-23 | 2018-04-23 | Low-noise centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211550025U (en) |
-
2018
- 2018-04-23 CN CN201820580837.1U patent/CN211550025U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20200922 Termination date: 20210423 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |