CN220134269U - Centrifugal impeller wind-guiding structure - Google Patents
Centrifugal impeller wind-guiding structure Download PDFInfo
- Publication number
- CN220134269U CN220134269U CN202320822976.1U CN202320822976U CN220134269U CN 220134269 U CN220134269 U CN 220134269U CN 202320822976 U CN202320822976 U CN 202320822976U CN 220134269 U CN220134269 U CN 220134269U
- Authority
- CN
- China
- Prior art keywords
- centrifugal impeller
- air
- mounting seat
- guiding structure
- guide plate
- 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.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a centrifugal impeller's wind-guiding structure, includes centrifugal impeller, its characterized in that: the centrifugal impeller is arranged in the fan bracket and is in transmission connection with the motor, and guide plates capable of changing the radial air flow direction of the centrifugal impeller into downward movement are formed on the inner wall of the fan bracket at intervals in the circumferential direction. The arc-shaped guide plate is formed on the inner wall of the fan bracket, so that the operation direction of the sucked air can be changed when the sucked air is thrown out by centrifugal force and then is thrown away from the periphery, the sucked air is changed into downward movement and moves towards the air outlet, and the guide plate also plays a role in collecting wind, so that the air loss is reduced. The utility model has reasonable structural design, can reduce air loss, effectively increase the working efficiency of the centrifugal impeller, and has convenient assembly and lower cost.
Description
Technical Field
The utility model belongs to the technical field of centrifugal fans, and relates to a centrifugal impeller, in particular to an air guide structure of the centrifugal impeller.
Background
Centrifugal fans are machines that rely on input mechanical energy to raise the pressure of the gas and discharge the gas, and are driven fluid machines that convert an axially incoming gas stream into a circumferential gas stream. The centrifugal fan impeller is an important part of the centrifugal fan, and is a wind wheel for axially air inlet and radially air outlet, and utilizes centrifugal force (depending on rotating speed and outer diameter) to apply work so as to improve the pressure of air. The design of the centrifugal impeller has a great influence on the performance of the whole centrifugal fan, and the design is focused on obtaining higher working efficiency at present.
The Chinese patent of CN201420638600.6, a backward centrifugal impeller and a centrifugal fan, the backward centrifugal impeller comprises: a chassis; the plurality of air guide blades are arranged along the circumferential direction of the chassis, each air guide blade extends from the center of the chassis to the outer edge of the chassis, and a diversion channel is formed between two adjacent air guide blades; and the splitter blades are arranged in the diversion channel so as to reduce the speed change of the gas in the diversion channel. The backward centrifugal impeller and the centrifugal fan can ensure that the change of the gas flow velocity in the flow guide channel is small, the gas flow velocity in the flow guide channel is uniform, and the turbulence appearance is not easy to occur, so that the generation of turbulent noise can be avoided, and the performance of the backward centrifugal impeller is improved. The centrifugal impeller is additionally provided with the split impeller, so that the airflow speed in the flow channel is reduced, the airflow speed is uniform, the noise can be reduced, and the working efficiency of the impeller cannot be effectively improved.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an air guide structure of a centrifugal impeller with reasonable structural design, less air loss and high efficiency aiming at the current state of the art.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a centrifugal impeller's wind-guiding structure, includes centrifugal impeller, its characterized in that: the centrifugal impeller is arranged in the fan bracket and is in transmission connection with the motor, and guide plates capable of changing the radial air flow direction of the centrifugal impeller into downward movement are formed on the inner wall of the fan bracket at intervals in the circumferential direction.
As an improvement, the fan support comprises a cylindrical shell, a mounting seat is formed in the shell, a centrifugal impeller is arranged above the mounting seat, a motor is arranged below the mounting seat, a rotating shaft of the motor penetrates through a central hole of the mounting seat to be connected with the centrifugal impeller, a guide plate is an arc plate inclined downwards, the position of the guide plate is consistent with the position of a wind outlet of the centrifugal impeller, one end of the guide plate is connected with the inner wall of the shell, the lower part of the other end of the guide plate is connected with the outer peripheral surface of the mounting seat, and an air outlet is formed between the outer periphery of the mounting seat and the inner wall of the shell and between the guide plate and the guide plate.
Further, centrifugal impeller includes wheel cap, rim plate and evenly sets up a plurality of blades between wheel cap and rim plate, and wherein the rim plate is the annular plane, and the wheel cap is outside downward sloping annular conical surface, and the guide plate is even interval setting, and the up end of guide plate flushes with the outer end of wheel cap, and the inboard of guide plate is close to centrifugal impeller.
Further, the upper end of the fan support is oppositely provided with an air duct cover plate, the air duct cover plate is of a disc-shaped structure matched with the inner diameter of the upper opening of the fan support, an air inlet is formed in the middle of the air duct cover plate, and the air duct cover plate is arranged at the position of the upper opening of the fan support, and the lower end of the air duct cover plate abuts against the upper end of the air deflector.
Still further, protruding a reference column that is equipped with in lower extreme one side of wind channel apron is equipped with corresponding location fixed orifices on the shell inner wall of fan support.
Finally, the shell, the air deflector and the mounting seat of the fan bracket are integrated.
Compared with the prior art, the utility model has the advantages that: the arc-shaped guide plate is formed on the inner wall of the fan bracket, so that the operation direction of the sucked air can be changed when the sucked air is thrown out by centrifugal force and then is thrown away from the periphery, the sucked air is changed into downward movement and moves towards the air outlet, and the guide plate also plays a role in collecting wind, so that the air loss is reduced. The utility model has reasonable structural design, can reduce air loss, effectively increase the working efficiency of the centrifugal impeller, and has convenient assembly and lower cost.
Drawings
FIG. 1 is an exploded view of an embodiment of the present utility model;
FIG. 2 is a top view of an embodiment of the present utility model with the duct cover removed;
FIG. 3 is a longitudinal cross-sectional view of FIG. 2;
fig. 4 is another longitudinal cross-sectional view of fig. 2.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 4, an air guiding structure of a centrifugal impeller comprises a centrifugal impeller 1 and a fan bracket 2, wherein the centrifugal impeller 1 is arranged in the fan bracket 2 and is in transmission connection with a motor 3, and guide plates 23 which can change the radial air flow direction of the centrifugal impeller 1 into downward movement are formed on the inner wall of the fan bracket 2 at intervals in the circumferential direction.
The concrete structure is as follows: the fan bracket 2 comprises a cylindrical shell 21, a mounting seat 22 is formed in the shell 21, the centrifugal impeller 1 is arranged above the mounting seat 22, the motor 3 is arranged below the mounting seat 22, a rotating shaft of the motor 3 penetrates through a central hole of the mounting seat 22 to be connected with the centrifugal impeller 1, the guide plate 23 is an arc plate inclined downwards, the position of the guide plate 23 is consistent with the position of an air outlet of the centrifugal impeller 1, one end of the guide plate 23 is connected with the inner wall of the shell 21, the lower part of the other end of the guide plate is connected with the peripheral surface of the mounting seat 22, and an air outlet 10 is formed between the periphery of the mounting seat 22 and the inner wall of the shell 21 and between the guide plate 23. The centrifugal impeller 1 comprises a wheel cover 11, a wheel disc 12 and a plurality of blades 13 uniformly arranged between the wheel cover 11 and the wheel disc 12, wherein the wheel disc 12 is in a circular plane, the wheel cover 11 is in an outward and downward inclined annular conical surface, the guide plates 23 are uniformly arranged at intervals, the upper end surfaces of the guide plates 23 are flush with the outer end of the wheel cover 11, the inner sides of the guide plates 23 are close to the centrifugal impeller 1, namely, the inner sides of the guide plates 23 are adhered to the centrifugal impeller 1, but a movable gap exists, and friction is not generated. The upper end of the fan bracket 2 is oppositely provided with an air duct cover plate 4, the air duct cover plate 4 is of a disc-shaped structure matched with the inner diameter of the upper opening of the fan bracket 2, the middle part of the air duct cover plate 4 is provided with an air inlet 42, and the air duct cover plate 4 is arranged at the upper opening position of the fan bracket 2 and the lower end of the air duct cover plate is propped against the upper end of the air deflector 23. A positioning column 41 is convexly arranged on one side of the lower end of the air duct cover plate 4, and a corresponding positioning fixing hole 24 is arranged on the inner wall of the shell of the fan bracket 2.
The housing 21, the air deflector 23 and the mounting seat 22 of the fan bracket 2 are integrated.
The working principle is as follows: when the motor 3 is started, the centrifugal impeller 1 is driven by the motor 3 to rotate, air located between the blades 13 does work, the air between the blades 13 is thrown to the periphery along the blades 13 under the action of centrifugal force, as shown in fig. 2, the air thrown to the periphery is influenced by the guide plates 23 to change the movement direction, and the air thrown to the periphery is changed into downward movement from the periphery to move to the air outlet 10, as shown in fig. 3. The centrifugal impeller 1 is driven to rotate by the motor 3, so that the air in the center is forced to be thrown away at a high speed, low pressure is formed in the center of the centrifugal impeller 1, and the air is continuously sucked into the air inlet.
The sucked air is thrown out by centrifugal force and guided by the guide plate 23, the arc guide plate 23 can also play a role in gathering wind, the loss of the air can be reduced, and the energy is used more efficiently.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (6)
1. The utility model provides a centrifugal impeller wind-guiding structure, includes centrifugal impeller, its characterized in that: the centrifugal impeller is arranged in the fan bracket and is in transmission connection with the motor, and guide plates capable of changing the radial air flow direction of the centrifugal impeller into downward movement are formed on the inner wall of the fan bracket at intervals in the circumferential direction.
2. The air guiding structure of claim 1, wherein: the fan support comprises a cylindrical shell, a mounting seat is formed in the shell, a centrifugal impeller is arranged above the mounting seat, a motor is arranged below the mounting seat, a rotating shaft of the motor penetrates through a central hole of the mounting seat to be connected with the centrifugal impeller, a guide plate is an arc plate inclined downwards, the position of the guide plate is consistent with the position of a wind outlet of the centrifugal impeller, one end of the guide plate is connected with the inner wall of the shell, the lower portion of the other end of the guide plate is connected with the outer peripheral surface of the mounting seat, and an air outlet is formed between the periphery of the mounting seat and the inner wall of the shell and between the periphery of the mounting seat and the guide plate.
3. The air guiding structure of claim 2, wherein: the centrifugal impeller comprises a wheel cover, a wheel disc and a plurality of blades uniformly arranged between the wheel cover and the wheel disc, wherein the wheel disc is in a circular plane, the wheel cover is an outward and downward inclined annular conical surface, the guide plates are uniformly arranged at intervals, the upper end surfaces of the guide plates are flush with the outer end of the wheel cover, and the inner sides of the guide plates are close to the centrifugal impeller.
4. A wind-guiding structure according to claim 3, wherein: the upper end of the fan support is oppositely provided with an air duct cover plate, the air duct cover plate is of a disc-shaped structure matched with the inner diameter of the upper opening of the fan support, the middle part of the air duct cover plate is provided with an air inlet, and the air duct cover plate is arranged at the upper opening position of the fan support and the lower end of the air duct cover plate is propped against the upper end of the air deflector.
5. The air guiding structure of claim 4, wherein: a positioning column is convexly arranged on one side of the lower end of the air duct cover plate, and a corresponding positioning fixing hole is formed in the inner wall of the shell of the fan bracket.
6. The air guiding structure according to any one of claims 2 to 5, wherein: the shell, the air deflector and the mounting seat of the fan bracket are integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320822976.1U CN220134269U (en) | 2023-04-10 | 2023-04-10 | Centrifugal impeller wind-guiding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320822976.1U CN220134269U (en) | 2023-04-10 | 2023-04-10 | Centrifugal impeller wind-guiding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220134269U true CN220134269U (en) | 2023-12-05 |
Family
ID=88958225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320822976.1U Active CN220134269U (en) | 2023-04-10 | 2023-04-10 | Centrifugal impeller wind-guiding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220134269U (en) |
-
2023
- 2023-04-10 CN CN202320822976.1U patent/CN220134269U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109441876B (en) | No spiral case backward centrifugal fan | |
| US11116367B2 (en) | Electric fan and vacuum cleaner having same | |
| US20220060087A1 (en) | Fan and electric appliance | |
| US5191247A (en) | Substantially noiseless fan for internally cooling electric motors | |
| CN220134269U (en) | Centrifugal impeller wind-guiding structure | |
| CN107339241B (en) | Multi-wing centrifugal fan | |
| US20210025606A1 (en) | Air cleaner | |
| CN113883099B (en) | High-efficient wind-guiding structure and fan | |
| WO2019011315A1 (en) | Centrifugal vane wheel and centrifugal fan comprising same and dust collector | |
| MX2007006299A (en) | Multi-stage taper fan-motor assembly. | |
| CN209908803U (en) | Backward centrifugal fan with flow guide device | |
| CN209494742U (en) | Blower and dust catcher with it | |
| CN208417047U (en) | A kind of pairing face movable vane wheel | |
| US20080159883A1 (en) | Fan-motor assembly | |
| CN220276585U (en) | Power mechanism for fog gun machine and fog gun machine | |
| CN218479972U (en) | Binary channels dust absorption motor top cap with water conservancy diversion function | |
| CN113074127B (en) | Air supply device and dust collector | |
| CN220869711U (en) | Forward centrifugal wind wheel and centrifugal fan using same | |
| CN217761388U (en) | Impeller structure and centrifugal fan comprising same | |
| CN220286035U (en) | Improved semi-open centrifugal impeller and automobile air conditioner fan using same | |
| CN217129909U (en) | Axial flow fan with centrifugal impeller | |
| CN212508921U (en) | High-efficiency fan | |
| CN219622908U (en) | Multi-wing centrifugal wind wheel and centrifugal fan | |
| CN218780529U (en) | High-efficient silence impeller | |
| CN208534807U (en) | Backward tilt centrifugal blower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |