CN214887970U - Novel centrifugal fan - Google Patents
Novel centrifugal fan Download PDFInfo
- Publication number
- CN214887970U CN214887970U CN202121196708.0U CN202121196708U CN214887970U CN 214887970 U CN214887970 U CN 214887970U CN 202121196708 U CN202121196708 U CN 202121196708U CN 214887970 U CN214887970 U CN 214887970U
- Authority
- CN
- China
- Prior art keywords
- motor
- shell
- lid
- centrifugal fan
- air
- 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
Images
Abstract
The utility model discloses a novel centrifugal fan, include the shell and set up in the inside fan blade body of shell, the wind channel board that lies in fan blade body periphery on the shell and be provided with, be formed with the air current channel between wind channel inboard and the fan blade body outside, be provided with the air outlet more than two at least on the wind channel board, install the lid on the shell, the pivot and the fan blade body fixed connection of motor and motor are installed to the terminal surface of lid, the air intake has been seted up on the lid, it all is provided with the amortization cotton to lie in air outlet department on the lid. Therefore, the air outlet amount can be effectively increased through the air outlets, noise can be eliminated through the porous silencing cotton, noise is greatly reduced, meanwhile, the number of parts is small, production cost is saved, the structure is simple, operation is convenient, and the practicability is high.
Description
Technical Field
The utility model belongs to the technical field of fan and technique and specifically relates to a novel centrifugal fan.
Background
As is well known, a centrifugal fan is a machine that increases the pressure of gas and discharges the gas by means of input mechanical energy, and is a driven fluid machine. Centrifugal fans are widely used in ventilation, dust exhaust, cooling, and the like of household appliances, equipment, factories, mines, tunnels, cooling towers, vehicles, ships, and buildings.
The existing centrifugal fan has the advantages that the rotating speed of the fan blade body of the centrifugal fan is required to be increased due to the fact that the air pressure and the air output of the air outlet are increased, and then eddy currents in the centrifugal fan are more, the fan blade body and air are rubbed violently, the overall noise of the centrifugal fan is too large, hearing and emotion of people can be influenced, noise pollution is caused, and the efficiency of the centrifugal fan is greatly reduced.
Disclosure of Invention
To the not enough of existence among the above-mentioned prior art, the utility model aims to provide a novel centrifugal fan.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a novel centrifugal fan, includes the shell and sets up in the inside flabellum body of shell, the wind channel board that lies in flabellum body periphery on the shell and be provided with, be formed with the air current channel between wind channel inboard and the flabellum body outside, be provided with the air outlet more than two at least on the wind channel board, install the lid on the shell, the pivot and the flabellum body fixed connection of motor and motor are installed to the terminal surface of lid, the air intake has been seted up on the lid, it all is provided with the amortization cotton to lie in air outlet department on the lid.
Preferably, the surface of the sound attenuation cotton is provided with a plurality of bulges.
Preferably, the sound-deadening cotton is a porous sound-deadening material.
Preferably, the cover body is provided with a mounting hole position.
Preferably, the motor is a stepping motor or a servo motor or a brushless motor or an electromagnetic direct current motor.
Since the technical scheme is used, the utility model discloses be provided with the air outlet more than two on the wind channel board of shell to air outlet department all is provided with porous sound insulation material's amortization cotton, so a plurality of air outlets can effectively improve the air output, and porous amortization cotton can the noise abatement, and then reduces the noise greatly, and spare part is less simultaneously, practices thrift manufacturing cost, its simple structure, and convenient operation has very strong practicality.
Drawings
Fig. 1 is an isometric view of an embodiment of the invention.
Fig. 2 is an exploded view of an embodiment of the present invention.
In the figure:
the fan comprises a shell 1, a fan blade body 2, an air duct plate 3, an air flow duct 4, an air outlet 5, a motor 6, an air inlet 7, silencing cotton 8, a bulge 9, a mounting hole position 10 and a cover body 11.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 2, the present embodiment provides a novel centrifugal fan, including housing 1 and the fan blade body 2 arranged inside housing 1, an air duct plate 3 located at the periphery of the fan blade body 2 on housing 1 is provided with, an air flow duct 4 is formed between the inner side of air duct plate 3 and the outer side of fan blade body 2, at least more than two air outlets 4 are provided on air duct plate 3, a cover 11 is installed on housing 1, a motor 6 is installed on the end surface of cover 11, the rotating shaft of motor 6 is fixedly connected with fan blade body 2, an air inlet 7 has been opened on cover 11, and silencing cotton 8 is provided at the position of air outlet 7 on cover 11.
Further, the surface of the sound attenuation cotton 8 of the embodiment is provided with a plurality of protrusions 9. By setting the bulge 9, when sound waves pass through the silencing cotton 8, the sound waves are blocked, and the sound wave energy is weakened.
Further, the noise reducing cotton 8 of the present embodiment is a porous sound insulating material. When sound waves pass through the silencing cotton 8, the sound waves are reflected, overlapped and collided through the numerous small holes, sound wave energy is converted into heat energy, and then the intensity of the sound waves is greatly weakened, so that the silencing effect is achieved.
Further, the cover 11 of the present embodiment is provided with a mounting hole 10. By setting the mounting hole 10, the whole installation can be facilitated.
Further, the motor 6 of the present embodiment is a stepping motor, a servo motor, a brushless motor, an electromagnetic dc motor, or the like. The present embodiment is not particularly limited to the specific type of the motor 6
This embodiment in-service work, be provided with air outlet 5 more than two on the wind channel board 3, and air outlet 5 department all is provided with porous sound insulation material's amortization cotton 8, consequently, a plurality of air outlets 5 can effectively improve the air output, and porous sound insulation material can pass through amortization cotton 8 with the sound wave when, through the reflection of countless aperture, superpose each other, the collision, sound wave energy conversion is heat energy, and then sound wave intensity weakens greatly, thereby reach the effect of amortization, and then the noise reduction greatly, spare part is less simultaneously, and the production cost is saved, the modular design is convenient for assemble and produce.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (5)
1. A novel centrifugal fan is characterized in that: including the shell and set up in the inside flabellum body of shell, the wind channel board that lies in flabellum body periphery on the shell and be provided with, be formed with the air current way between the wind channel inboard and the flabellum body outside, be provided with the air outlet more than two at least on the wind channel board, install the lid on the shell, the pivot and the flabellum body fixed connection of motor and motor are installed to the terminal surface of lid, the air intake has been seted up on the lid, it all is provided with the amortization cotton to lie in air outlet department on the lid.
2. A novel centrifugal fan as claimed in claim 1, wherein: the surface of the silencing cotton is provided with a plurality of bulges.
3. A novel centrifugal fan as claimed in claim 2, wherein: the silencing cotton is made of porous sound insulation material.
4. A novel centrifugal fan as claimed in claim 3, wherein: and the cover body is provided with an installation hole position.
5. A novel centrifugal fan as claimed in claim 4, wherein: the motor adopts a stepping motor or a servo motor or a brushless motor or an electromagnetic direct current motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121196708.0U CN214887970U (en) | 2021-05-31 | 2021-05-31 | Novel centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121196708.0U CN214887970U (en) | 2021-05-31 | 2021-05-31 | Novel centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214887970U true CN214887970U (en) | 2021-11-26 |
Family
ID=78935741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121196708.0U Active CN214887970U (en) | 2021-05-31 | 2021-05-31 | Novel centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214887970U (en) |
-
2021
- 2021-05-31 CN CN202121196708.0U patent/CN214887970U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205160270U (en) | Motor amortization wind channel | |
| CN102221018B (en) | Energy-saving sound-proofing centrifugal fan set | |
| CN103629128A (en) | Silent fan | |
| CN214887970U (en) | Novel centrifugal fan | |
| CN215256988U (en) | Low-noise outlet flow guide and ventilator with same | |
| CN214304433U (en) | A dust exhausting fan structure for exhaust-gas treatment | |
| CN102090863A (en) | De-noising structure of dust collector motor | |
| CN212429253U (en) | Mining energy-saving side air inlet and sheet type low-noise ventilator device | |
| CN213089954U (en) | Intelligent combined air conditioning unit with good heat dissipation effect | |
| CN210799519U (en) | Noise reducer for generator | |
| CN2073503U (en) | Noise-eliminating device for air-blower | |
| CN210565318U (en) | Novel fan blade for centrifugal fan | |
| CN107143526A (en) | Centrifugal blower | |
| CN2535590Y (en) | Low-noise centrifugal fan | |
| CN206801953U (en) | Centrifugal blower | |
| CN216751402U (en) | Dust collector motor capable of reducing noise | |
| CN220646229U (en) | Energy-saving fan structure for waste gas treatment system | |
| CN214063375U (en) | Fan impeller fairing | |
| CN219795629U (en) | Dual-purpose low noise centrifugal fan of fire control ventilation | |
| CN214330951U (en) | Flame-proof type axial flow fan for paint conveying | |
| CN215908130U (en) | Fan with filtering structure | |
| CN211737497U (en) | Explosion-proof low noise axial fan | |
| CN209976838U (en) | Air leakage prevention structure of fan | |
| CN217582535U (en) | Main fan for mining | |
| CN2247732Y (en) | Roof axial flow ventilator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |