CN112145454A - Centrifugal fan - Google Patents
Centrifugal fan Download PDFInfo
- Publication number
- CN112145454A CN112145454A CN202011037159.2A CN202011037159A CN112145454A CN 112145454 A CN112145454 A CN 112145454A CN 202011037159 A CN202011037159 A CN 202011037159A CN 112145454 A CN112145454 A CN 112145454A
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- China
- Prior art keywords
- air
- volute
- collecting cavity
- centrifugal fan
- flow guide
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/424—Double entry casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/4246—Fan casings comprising more than one outlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The application provides a centrifugal fan relates to ventilation blower technical field. Wherein, centrifugal fan includes: the air guide volute is internally provided with an air collecting cavity and a plurality of air guide channels spirally arranged around the air collecting cavity, the air guide volute is provided with a plurality of air outlets communicated with the air collecting cavity and an air inlet, and the air outlets are communicated with the air collecting cavity through the air guide channels; and the flow guide device is arranged in the air collecting cavity and is used for sucking outside air into the air collecting cavity from the air inlet and discharging the air from the air outlet along the flow guide channel. This application technical scheme can make a fan provide stranded wind simultaneously and flow.
Description
Technical Field
The application relates to the technical field of ventilators, in particular to a centrifugal fan.
Background
The existing centrifugal fan needs to use a volute, the air outlet direction of the fan limited by the volute is that one air inlet corresponds to one air outlet of the existing fan, namely, one fan only has one air inlet and one air outlet, wherein the centrifugal fan can be used for radiating heat for equipment, and under the condition that more than one heat radiating equipment is to be arranged, a plurality of fans are needed to be provided for radiating the heat radiating equipment, so that the cost is increased. Therefore, how to enable one fan to provide multiple wind flows simultaneously is a technical problem that needs to be solved urgently by those skilled in the art.
Disclosure of Invention
In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:
this application first aspect provides a centrifugal fan, and this centrifugal fan includes: the air guide volute is internally provided with an air collecting cavity and a plurality of air guide channels spirally arranged around the air collecting cavity, the air guide volute is provided with a plurality of air outlets communicated with the air collecting cavity and an air inlet, and the air outlets are communicated with the air collecting cavity through the air guide channels;
and the flow guide device is arranged in the air collecting cavity and is used for sucking the outside air into the air collecting cavity from the air inlet and discharging the air from the air outlet along the flow guide channel.
In some modified embodiments of the first aspect of the present application, the first scroll casing and the at least one second scroll casing are provided in a stacked manner;
a first air inlet is formed on one side, facing the second volute, of the first volute, a first air outlet is formed on the first volute, a first air collecting cavity and a first flow guide channel spirally arranged around the first air collecting cavity are formed in the first volute, and the first air outlet is communicated with the first air collecting cavity through the first flow guide channel;
A second air inlet is formed on one side, away from the first volute, of the second volute, a second air outlet is formed on the second volute, a second air collecting cavity and a second flow guide channel spirally arranged around the second air collecting cavity are formed in the second volute, the second air outlet is communicated with the second air collecting cavity through the second flow guide channel, and a communication port is formed on one side, facing the first volute, of the second volute;
the first air collecting cavity and the second air collecting cavity are the air collecting cavities, the first air inlet and the second air inlet are the air inlets, the first air outlet and the second air outlet are the air outlets, and the first flow guide channel and the second flow guide channel are the flow guide channels.
Specifically, the first volute profile is at least partially non-coincident with the second volute profile.
Specifically, the first volute profile coincides with the second volute profile.
Specifically, the number of the second volutes is one.
Specifically, the spiral directions of the plurality of flow guide channels are the same.
Specifically, the flow guide device includes: first driving piece and preceding multi-wing centrifugal impeller, wherein, preceding multi-wing centrifugal impeller set up in the collection wind intracavity, first driving piece set up in the water conservancy diversion spiral case deviates from one side of air intake.
Specifically, the flow guide device includes: second driving piece and backward centrifugal impeller, wherein, backward centrifugal impeller set up in the collection wind cavity, the second driving piece set up in the water conservancy diversion spiral case deviates from one side of air intake.
Specifically, the wind-guiding device further comprises a guide ring arranged at the air inlet, wherein the diameter of the guide ring is gradually increased along a first direction, and the first direction is directed to the air inlet by the wind collecting cavity.
Compare in prior art, the centrifugal fan that this application first aspect provided can be so that centrifugal fan can provide stranded air current simultaneously through setting up a plurality of air outlets on the water conservancy diversion spiral case.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:
fig. 1 schematically illustrates a structural schematic diagram of a centrifugal fan provided in an embodiment of the present application;
FIG. 2 schematically illustrates an exploded view of a centrifugal fan according to an embodiment of the present disclosure;
FIG. 3 schematically illustrates a top view of a centrifugal fan provided by an embodiment of the present application;
FIG. 4 schematically illustrates a bottom view of a centrifugal fan provided by an embodiment of the present application;
fig. 5 schematically illustrates a structural diagram of a first volute of a centrifugal fan provided in an embodiment of the present application;
fig. 6 schematically illustrates a structural diagram of a second volute of the centrifugal fan provided by the embodiment of the present application;
the reference numbers illustrate:
the centrifugal fan comprises a first volute 1, a first air inlet 11, a first air outlet 12, a first air collecting cavity 13, a first volute plate 14, a first enclosing plate 15, a second volute 2, a second air inlet 21, second air outlet 22, a second air collecting cavity 23, a second diversion channel 24, a second volute plate 25, a second enclosing plate 26, a communication port 27, a forward multi-wing centrifugal impeller 3 and a diversion ring 4.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
The present application provides, in a first aspect, a centrifugal fan, as shown in fig. 1 to 6, including: the air guide volute is internally provided with an air collecting cavity and a plurality of air guide channels spirally arranged around the air collecting cavity, the air guide volute is provided with a plurality of air outlets communicated with the air collecting cavity and an air inlet, and the air outlets are communicated with the air collecting cavity through the air guide channels; and the flow guide device is arranged in the air collecting cavity and is used for sucking outside air into the air collecting cavity from the air inlet and discharging the air from the air outlet along the flow guide channel.
Wherein, in the centrifugal fan that this embodiment provided, can set up guiding device in album wind intracavity, guiding device can be with external air intake collection wind intracavity to make the air flow to the air outlet along water conservancy diversion passageway and discharge. Air intake on the water conservancy diversion spiral case communicates in collection wind chamber, and external air enters into collection wind intracavity by the air intake, and then the inside air in collection wind chamber is discharged by a plurality of air outlets, and consequently, the centrifugal fan that this embodiment provided can provide the stranded distinguished and admirable. Specifically, at present, a condenser is arranged in an air conditioner external hanging machine, a fan is required to cool the condenser, two or more condensers are arranged in part of the air conditioner external hanging machine, and in the prior art, if the two condensers need to be cooled, one fan is required to be respectively provided for the two condensers to cool the condensers, so that the structure in the air conditioner external hanging machine is complex. The centrifugal fan provided by the embodiment can enable the number of the air outlets on the flow guide volute to be two, and the two air outlets face to the two condensers respectively, so that heat dissipation can be performed on the two condensers to the plurality of condensers through the centrifugal fan in the embodiment. Of course, the centrifugal fan provided in this embodiment may not only be applicable to an air conditioner external hanging machine, but also be applicable to other devices requiring heat dissipation, and is not listed here. The air inlet can be circular, and the air collecting cavity is arranged corresponding to the air inlet, namely the air collecting cavity is a circular cavity corresponding to the air inlet. In addition, the centrifugal fan that this embodiment provided can be used for the air current pressurization, then blows out through the air outlet, and then makes the mouth of blowing blow out high-pressure wind.
In some modified embodiments of the first aspect of the present application, as shown in fig. 1 to 4, the centrifugal fan includes a first volute 1 and at least one second volute 2, and the second volute 2 is stacked on the first volute 1; as shown in fig. 5, a first air inlet 11 is formed at a side of the first scroll casing 1 facing the second scroll casing 2, a first air outlet 12 is formed at the first scroll casing 1, a first air collecting chamber 13 and a first flow guiding channel spirally arranged around the first air collecting chamber 13 are formed in the first scroll casing 1, and the first air outlet 12 is communicated with the first air collecting chamber 13 through the first flow guiding channel; as shown in fig. 6, a second air inlet 21 is formed at a side of the second scroll casing 2 away from the first scroll casing 1, a second air outlet 22 is formed on the second scroll casing 2, a second air collecting chamber 23 and a second guide channel 24 spirally arranged around the second air collecting chamber 23 are formed in the second scroll casing 2, the second air outlet 22 is communicated with the second air collecting chamber 23 through the second guide channel 24, and a communication port 27 is formed at a side of the second scroll casing 2 facing the first scroll casing 1; the first air collecting cavity 13 and the second air collecting cavity 23 are the air collecting cavities, the first air inlet 11 and the second air inlet are the air inlets, the first air outlet 12 and the second air outlet 22 are the air outlets, and the first flow guide channel and the second flow guide channel 24 are the flow guide channels.
The number of the second scroll casing 2 may be one or more, when the number of the second scroll casing 2 is one, the second scroll casing 2 is stacked on the first scroll casing 1, the first scroll casing 1 includes two first scroll plates 14 which are oppositely disposed, one of the two first scroll plates 14 facing the second scroll casing 2 is provided with a first air inlet 11, as shown in fig. 5, a first air inlet 11 is provided on a first scroll plate 14a, the first scroll casing 1 further includes a first enclosing plate 15, the first enclosing plate 15 is disposed along outer edges of the two first scroll plates 14, the first enclosing plate 15 and the two first scroll plates 14 enclose a first scroll cavity, taking the first scroll plate 14a as an example, an edge on the first scroll plate 14a for forming the first air inlet 11 is an inner edge, and an outer edge of the first scroll plate 14a surrounds a periphery of the inner edge. Wherein, the outer edges of the two first worm plates 14 are in the same shape, that is, the orthographic projection of the first worm plate 14a on the first worm plate 14b is completely coincident with the outer edge of the first worm plate 14 b. Specifically, the first worm 14b includes a channel region and a cavity region, a region covered by an orthographic projection of the first worm 14a on the first worm 14b is the channel region, the first shroud 15 and the first worm 14 together form a first diversion channel, and a region corresponding to the cavity region in the first worm cavity is the first wind collecting cavity 13. In addition, as shown in fig. 5, the first worm 14 includes a first portion 141 and a second portion 142, an outer edge of the first portion 141 is disposed along a spiral line, a distance between an edge of the first portion 141 and an inner edge is gradually increased, one end of the second portion 142 is connected to a start end of the first portion with the smallest outer diameter and a terminal end of the first portion with the largest outer diameter, and an end of the second portion 142 facing away from the first portion 141 and the first enclosing plate 15 enclose the first air outlet 12. The first air collecting cavity 13 in the first volute 1 is communicated with the second air collecting cavity 23 through the first air inlet 11.
As shown in fig. 3 and 6, a second air inlet 21 is formed at a side of the second scroll casing 2 facing away from the first scroll casing 1, external air can enter the second air collecting chamber 23 through the first air inlet 11, the second scroll casing 2 includes two second scroll plates 25 and a second shroud plate 26 connecting outer edges of the two second scroll plates 25, one of the second scroll plates 25b is disposed on the first scroll plate 14a formed with the first air inlet 11, and a communication port 27 is formed on the second scroll plate 25b, generally, the second scroll plate 25b facing the first scroll casing 1 and the first scroll plate 14a facing the second scroll casing 2 can be disposed on the same partition plate, and two areas on the partition plate correspond to the first scroll plate 14a and the second scroll plate 25b, respectively, where it is to be noted that the first scroll plate 14a and the second scroll plate 25b at least partially overlap. Wherein, in the second volute 2, the second volute plate 25b faces the first volute 1, and the second volute plate 25a faces away from the first volute 1. The communication port 27 of the second scroll plate 25b coincides with the first air inlet 11 of the first scroll plate 14 a. The first and second spiral plates 14a and 25b may have the same structure, and at this time, the first and second spiral plates 14a and 25b may be regarded as completely overlapping, and the flow directions of the wind blown out from the first and second outlets are the same. Wherein the second scroll 25 also includes a first portion and a second portion. When the number of the second volutes 2 is multiple, the multiple second volutes 2 are sequentially stacked on the first volute plate 14a of the first volute 1, and the second air inlet 21 formed on the second volute plate 25a of the second volute 2 farthest from the first volute 1 is used as the air inlet of the centrifugal fan. Wherein, when the number of the second volutes 2 is multiple, the second volute 2 at the upper layer of two adjacent second volutes 2 is arranged on the second volute plate 25a of the second volute 2 at the lower layer, therefore, the second air inlet 21 in the second volute 2 can be coincided with the orthographic projection of the communication port 27 on the first volute plate 14, and at this time, the second scroll plate 25b of the second scroll casing 2 positioned at the upper stage shares a partition plate with the second scroll plate 25a of the second scroll casing 2 positioned at the lower stage, and two areas on the partition plate correspond to the second scroll plate 25b of the second scroll casing 2 positioned at the upper stage and the second scroll plate 25a of the second scroll casing 2 positioned at the lower stage, wherein, the second volute 2 at the upper layer is one far from the first volute 1 in the two adjacent second volutes 2, and the second volute 2 at the lower layer is one close to the first volute 1 in the two adjacent second volutes 2. The wind pressures blown out from the first outlet 12 and the second outlet 22 can be considered to be the same. The flow field between the first scroll casing 1 and the second scroll casing 2 is independent, and the flow field between the adjacent two second scroll casings 2 is independent.
Specifically, at least part of the first volute 1 molded line and the second volute 2 molded line are not overlapped.
The misalignment of the first volute molded line and the second volute molded line indicates that the air flow directions blown out by the first air outlet and the second air blowing port are different, when the number of the second volutes 2 is one, the first volute 1 molded line and the second volute 2 molded line are misaligned, the first volute 1 molded line and the second volute 2 molded line can rotate at a preset included angle, and then the air blowing port of the centrifugal fan can blow out two air flows at the preset included angle. The preset included angle may be any angle, specifically, when the molded line of the first scroll casing 1 and the molded line of the second scroll casing 2 rotate by 180 degrees, the first air outlet 12 is opposite to the second air outlet 22, that is, the air flow directions blown out from the first air outlet 12 and the second air outlet 22 are completely opposite. When the molded line of the first volute 1 and the molded line of the second volute 2 rotate 90 degrees, the direction of the air flow blown out by the first air outlet 12 and the second air outlet 22 is perpendicular. When the number of the second volutes 2 is multiple, the multiple second volute profiles may coincide, but the second volute profiles do not coincide with the second volute profiles, or the first volute profile only coincides with a part of the second volute profiles, or the first volute profile does not coincide with the multiple second volute profiles, wherein the first volute profile and the second volute profile may be collectively referred to as the volute profiles, any two of the multiple volute profiles rotate at a preset included angle, and the preset included angle may be any angle.
Specifically, the profile of the first volute 1 coincides with the profile of the second volute 2. In this embodiment, the centrifugal fan can blow out a plurality of wind flows in the same direction.
Specifically, the number of the second volutes 2 is one.
The two air blowing ports coexist in the diversion volute, the size of a centrifugal impeller in the diversion device is closely related to the size of an air collecting cavity, the axial size of the centrifugal impeller is determined under the condition that the diameter of the centrifugal impeller is fixed, and at the moment, only two air blowing ports are arranged to ensure that the air pressure of the first air outlet 12 and the second air outlet 22 cannot be too small, so that the air outlet pressure and the air outlet quantity of the air outlets are ensured. If the number of the air outlets is too large, the air output of each air outlet is too small, the air outlet pressure is too small, and the air outlet requirement of the centrifugal fan cannot be met.
Specifically, the spiral directions of the plurality of flow guide channels are the same.
Wherein, the water conservancy diversion passageway can be levogyration also can be the dextrorotation, and the spiral direction of a plurality of water conservancy diversion passageways is the same, consequently, can make the flow direction of the air current in first collection wind chamber 13 and the second collection wind chamber 23 the same, and at this moment, can set up a guiding device in the collection wind chamber, provide power for the flow of air through a guiding device promptly.
Specifically, as shown in fig. 1 and 2, the flow guide device includes: first driving piece and preceding multi-wing centrifugal impeller 3, wherein, preceding multi-wing centrifugal impeller 3 set up in the collection wind intracavity, first driving piece set up in the water conservancy diversion spiral case deviates from one side of air intake.
Wherein, first driving piece can be the motor, and the pivot of motor is connected in preceding multi-wing centrifugal impeller 3, and the motor drive is preceding to multi-wing centrifugal impeller 3 rotate. The first worm plate 14b may be provided with a mounting hole, the rotation of the motor passes through the mounting hole to be connected with the forward multi-wing centrifugal impeller 3, and one forward multi-wing centrifugal impeller penetrates through the first wind collecting cavity and the second wind collecting cavity. The centrifugal fan that this embodiment provided is to multi-wing centrifugal fan, and to multi-wing centrifugal fan have characteristics small, that static pressure is high, and the deformity is not repeated here.
Specifically, the flow guide device includes: second driving piece and backward centrifugal impeller, wherein, backward centrifugal impeller set up in the collection wind cavity, the second driving piece set up in the water conservancy diversion spiral case deviates from one side of air intake.
Wherein, the mounting means of the first driving piece of mounting means of second driving piece is the same, and the second driving piece can be the motor, and the pivot of motor is connected in back centrifugal impeller, and second driving piece drive centrifugal impeller rotates, and a back centrifugal impeller runs through first wind collection chamber and second wind collection chamber. The centrifugal fan that this embodiment provided can be for the centrifugal fan that faces backward.
Specifically, as shown in fig. 1 and fig. 2, the centrifugal fan further includes a flow guide ring 4 disposed at the air inlet, and the diameter of the flow guide ring 4 gradually increases along a first direction, wherein the first direction is directed to the air inlet by the air collecting cavity.
Wherein, can set up water conservancy diversion circle 4 in second air intake 21, water conservancy diversion circle 4 can be loudspeaker form, can increase air inlet efficiency.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. A centrifugal fan, comprising:
the air guide volute is internally provided with an air collecting cavity and a plurality of air guide channels spirally arranged around the air collecting cavity, the air guide volute is provided with a plurality of air outlets communicated with the air collecting cavity and an air inlet, and the air outlets are communicated with the air collecting cavity through the air guide channels;
and the flow guide device is arranged in the air collecting cavity and is used for sucking the outside air into the air collecting cavity from the air inlet and discharging the air from the air outlet along the flow guide channel.
2. The centrifugal fan of claim 1,
the device comprises a first volute and at least one second volute, wherein the second volute is arranged on the first volute in a stacked mode;
a first air inlet is formed on one side, facing the second volute, of the first volute, a first air outlet is formed on the first volute, a first air collecting cavity and a first flow guide channel spirally arranged around the first air collecting cavity are formed in the first volute, and the first air outlet is communicated with the first air collecting cavity through the first flow guide channel;
a second air inlet is formed on one side, away from the first volute, of the second volute, a second air outlet is formed on the second volute, a second air collecting cavity and a second flow guide channel spirally arranged around the second air collecting cavity are formed in the second volute, the second air outlet is communicated with the second air collecting cavity through the second flow guide channel, and a communication port is formed on one side, facing the first volute, of the second volute;
the first air collecting cavity and the second air collecting cavity are the air collecting cavities, the first air inlet and the second air inlet are the air inlets, the first air outlet and the second air outlet are the air outlets, and the first flow guide channel and the second flow guide channel are the flow guide channels.
3. The centrifugal fan of claim 2,
at least a portion of the first volute profile and the second volute profile do not coincide.
4. The centrifugal fan of claim 2,
the first volute profile coincides with the second volute profile.
5. The centrifugal fan of claim 2,
the number of the second volutes is one.
6. The centrifugal fan of claim 1,
the spiral directions of the guide channels are the same.
7. The centrifugal fan of claim 1,
the flow guide device comprises: first driving piece and preceding multi-wing centrifugal impeller, wherein, preceding multi-wing centrifugal impeller set up in the collection wind intracavity, first driving piece set up in the water conservancy diversion spiral case deviates from one side of air intake.
8. The centrifugal fan of claim 1,
the guiding device comprises: second driving piece and backward centrifugal impeller, wherein, backward centrifugal impeller set up in the collection wind cavity, the second driving piece set up in the water conservancy diversion spiral case deviates from one side of air intake.
9. The centrifugal fan of claim 1,
the air inlet is arranged on the air inlet, the diameter of the air guide ring is gradually increased along a first direction, and the first direction is pointed to the air inlet by the air collecting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011037159.2A CN112145454A (en) | 2020-09-27 | 2020-09-27 | Centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011037159.2A CN112145454A (en) | 2020-09-27 | 2020-09-27 | Centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112145454A true CN112145454A (en) | 2020-12-29 |
Family
ID=73894797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011037159.2A Pending CN112145454A (en) | 2020-09-27 | 2020-09-27 | Centrifugal fan |
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| Country | Link |
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| CN (1) | CN112145454A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024047453A1 (en) * | 2022-08-31 | 2024-03-07 | Dyson Technology Limited | A compressor and air purifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813096A (en) * | 2009-02-23 | 2010-08-25 | 乐金电子(天津)电器有限公司 | Double suction sirocco fan with multi-directional wind blowing |
| CN104314880A (en) * | 2014-09-28 | 2015-01-28 | 珠海格力电器股份有限公司 | Centrifugal fan system and air conditioner |
| US20170002829A1 (en) * | 2013-12-16 | 2017-01-05 | Korea Institute Of Industrial Technology | Multi-volute sirocco fan |
| CN109944817A (en) * | 2019-03-29 | 2019-06-28 | 珠海格力电器股份有限公司 | The centrifugal blower group and air conditioner of multidirectional blast can be achieved |
-
2020
- 2020-09-27 CN CN202011037159.2A patent/CN112145454A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813096A (en) * | 2009-02-23 | 2010-08-25 | 乐金电子(天津)电器有限公司 | Double suction sirocco fan with multi-directional wind blowing |
| US20170002829A1 (en) * | 2013-12-16 | 2017-01-05 | Korea Institute Of Industrial Technology | Multi-volute sirocco fan |
| CN104314880A (en) * | 2014-09-28 | 2015-01-28 | 珠海格力电器股份有限公司 | Centrifugal fan system and air conditioner |
| CN109944817A (en) * | 2019-03-29 | 2019-06-28 | 珠海格力电器股份有限公司 | The centrifugal blower group and air conditioner of multidirectional blast can be achieved |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024047453A1 (en) * | 2022-08-31 | 2024-03-07 | Dyson Technology Limited | A compressor and air purifier |
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