CN107143526A - Centrifugal blower - Google Patents
Centrifugal blower Download PDFInfo
- Publication number
- CN107143526A CN107143526A CN201710331225.9A CN201710331225A CN107143526A CN 107143526 A CN107143526 A CN 107143526A CN 201710331225 A CN201710331225 A CN 201710331225A CN 107143526 A CN107143526 A CN 107143526A
- Authority
- CN
- China
- Prior art keywords
- arc plate
- centrifugal blower
- casing
- impeller
- connection sheet
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003584 silencer Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
Abstract
This application discloses a kind of centrifugal blower, including casing, it is provided with the casing on motor, the casing and air intake oralia is installed, one end that the air intake oralia is not connected with the casing is provided with denoising device；The denoising device includes the first arc plate and second yuan of arc plate, first arc plate be arranged in parallel with second arc plate, first arc plate is connected by the first connection sheet and the second connection sheet respectively with the second arc plate two ends, and described second is arc structure in flakes.The technical scheme provided according to the embodiment of the present application, by installing denoising device in air inlet position, and denoising device is made up of two arc plates and connection sheet, simple in construction and can effectively reduce fan noise.
Description
Technical field
The disclosure relates generally to blower fan field, more particularly to centrifugal blower.
Background technology
Centrifugal blower is the pressure energy and kinetic energy that the mechanical energy rotated using draught fan impeller is converted to gas, and gas is defeated
See off, gas produces air energy along the streamlined air inlet air inlet through hollow shaft of blower fan through impeller rotation, along screw type housing by gas
Body is radially exported, then is sent out from shell air outlet.
Influence of the noise that centrifugal blower is produced to surrounding environment it is obvious that be related to normal life and the health of people,
People are to its criteria of noise control more and more higher.Especially to some air blowers, as shown in figure 1, fan outlet connecting pipe, blower fan
Import is directly communicated to air, so fan inlet influence of noise is larger.
The content of the invention
In view of drawbacks described above of the prior art or deficiency, expect to provide a kind of centrifugal blower.
On the one hand there is provided a kind of centrifugal blower, including casing, it is provided with motor, the casing and installs on the casing
There is air intake oralia, one end that the air intake oralia is not connected with the casing is provided with denoising device；
The denoising device includes the first arc plate and the second arc plate, first arc plate and second arc plate
It is arranged in parallel, first arc plate is connected by the first connection sheet and the second connection sheet respectively with the second arc plate two ends
Connect, uniformly through hole is provided with first arc plate.
The technical scheme provided according to the embodiment of the present application, by installing denoising device, and noise reduction in air inlet position
Device is made up of two arc plates and connection sheet, simple in construction and can effectively reduce fan noise.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is centrifugal fan structure schematic diagram in the prior art；
Fig. 2 is centrifugal fan structure schematic diagram in the present invention；
Fig. 3 is the partial enlarged drawing in Fig. 2.
Embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that, in order to
It is easy to illustrate only the part related to invention in description, accompanying drawing.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 2 is refer to, the present invention provides and is provided with motor 2, institute on a kind of centrifugal blower, including casing 1, the casing 1
State and air intake oralia 3 is installed on casing 1, one end that the air intake oralia 3 is not connected with the casing 1 is provided with denoising device；
The denoising device includes the first arc plate 4 and the second arc plate 5, first arc plate 4 and the described second circle
Arc plate 5 is be arranged in parallel, and first arc plate is connected by the first connection sheet and second respectively with the second arc plate two ends
Piece 6 is connected, and uniformly through hole is provided with first arc plate 4.
By installing denoising device in air inlet position in the present embodiment, and denoising device passes through two arc plates and connection
Piece is constituted, simple in construction and can effectively reduce fan noise.
Further, impeller 8 is installed on the output shaft of motor 2, stayed between the impeller and second connection sheet 6
There is space.The flowing of air when space is left between the impeller and the second connection sheet in the present invention for blower fan work, and second
Connection sheet is arc surface structure.
Further, the uniform through-hole aperture being provided with through hole, first arc plate is little on first arc plate
In 1mm.
The through hole that aperture is less than or equal to 1mm is opened up on the first arc plate, the first arc plate is micro through hole plate, forms simple
Air inlet silencer, effectively reduce fan noise.
Further, the first circular arc plate thickness is 1mm.It is strong that first circular arc plate thickness sets moderate guarantee blower fan to use
Material is saved while spending.
Further, the impeller includes front shroud and back shroud, is provided between the front shroud and the back shroud
Blade, space is left between the front shroud and second connection sheet.
As shown in figure 3, the space enlarged drawing between impeller and the second connection sheet, the specific cover plate and second before the impeller in space
Between connection sheet.
Further, deflection cone 7 is also associated with the back shroud of impeller, the deflection cone central shaft and the motor are defeated
Go out overlapping of axles.
Deflection cone is additionally provided with cover plate after the impeller, deflection cone central shaft is overlapped with motor output shaft, and deflection cone is set
It is set to streamlined, fan inlet vortex can be reduced by the deflection cone, impeller internal flow behavior is improved, effectively improve blower fan
Efficiency.
Further, uniformly being provided with through-hole aperture on through hole, the deflection cone is not more than 1mm on the deflection cone.
Multiple through holes are set on deflection cone, and aperture, again smaller than or equal to 1mm, deflection cone is also micro-via structures, together
When can reduce the noise during blower fan use, improve the effect of noise reduction.
Further, the deflection cone is welded on the back shroud of impeller.
Further, the air intake oralia is bolted to connection on the housing.
Centrifugal blower in the present invention passes through the microperforated panel being welded on air inlet and the micropunch being welded on impeller
The deflection cone of form, constitutes an easy import silencer, effectively reduces fan noise, fairshaped import deflection cone can subtract
Few fan inlet vortex, improves impeller internal flow behavior, improves fan efficiency.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology of the particular combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, is carried out by above-mentioned technical characteristic or its equivalent feature
Other technical schemes formed by any combination.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical characteristic of energy carries out technical scheme formed by replacement mutually.
Claims (9)
1. motor is installed on a kind of centrifugal blower, including casing, the casing, it is characterised in that be provided with the casing
Air intake oralia, one end that the air intake oralia is not connected with the casing is provided with denoising device；
The denoising device includes the first arc plate and the second arc plate, and first arc plate is parallel with second arc plate
Set, first arc plate is connected by the first connection sheet and the second connection sheet respectively with the second arc plate two ends,
Uniformly through hole is provided with first arc plate.
2. centrifugal blower according to claim 1, it is characterised in that impeller is provided with the motor output shaft, described
Space is left between impeller and second connection sheet.
3. centrifugal blower according to claim 1 or 2, it is characterised in that the through-hole aperture on first arc plate is not
More than 1mm.
4. centrifugal blower according to claim 3, it is characterised in that the first circular arc plate thickness is 1mm.
5. centrifugal blower according to claim 2, it is characterised in that the impeller includes front shroud and back shroud, described
Blade is installed between front shroud and the back shroud, space is left between the front shroud and second connection sheet.
6. centrifugal blower according to claim 1 or 2, it is characterised in that be also associated with water conservancy diversion on the back shroud of impeller
Cone, the deflection cone central shaft is overlapped with the motor output shaft.
7. centrifugal blower according to claim 6, it is characterised in that be uniformly provided with through hole on the deflection cone, described to lead
Through-hole aperture is not more than 1mm on flow cone.
8. centrifugal blower according to claim 6, it is characterised in that the deflection cone is welded on the back shroud of impeller
On.
9. centrifugal blower according to claim 1 or 2, it is characterised in that the air intake oralia is bolted to connection
On the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710331225.9A CN107143526B (en) | 2017-05-11 | 2017-05-11 | Centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710331225.9A CN107143526B (en) | 2017-05-11 | 2017-05-11 | Centrifugal fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107143526A true CN107143526A (en) | 2017-09-08 |
| CN107143526B CN107143526B (en) | 2023-12-26 |
Family
ID=59778346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710331225.9A Active CN107143526B (en) | 2017-05-11 | 2017-05-11 | Centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107143526B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488083A (en) * | 2018-04-26 | 2018-09-04 | 英飞凌（深圳）智慧科技有限公司 | A kind of wind turbine and air purifier |
| CN109779970A (en) * | 2019-01-26 | 2019-05-21 | 宁波纽新克电机股份有限公司 | The bionical noise-lowering centrifugal blower of fin shape |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2285383Y (en) * | 1996-04-22 | 1998-07-01 | 蚌埠市风机厂 | High-pressure centrifugal blower fan with air-resistant ring |
| CN201858192U (en) * | 2010-11-10 | 2011-06-08 | 天津市鼓风机总厂 | Fan main body of centrifugal fan for producing blue carbon |
| CN202579241U (en) * | 2012-05-11 | 2012-12-05 | 上虞广通风机有限公司 | High-efficiency energy-saving mixed-flow type ventilator |
| CN205401255U (en) * | 2016-02-29 | 2016-07-27 | 宁波方太厨具有限公司 | A collector of making an uproar falls for centrifugal fan among range hood |
| CN106382239A (en) * | 2016-10-14 | 2017-02-08 | 重庆通用工业(集团)有限责任公司 | Anti-adhesion centrifugal ventilation machine |
| CN206801953U (en) * | 2017-05-11 | 2017-12-26 | 南通升科节能技术有限公司 | Centrifugal blower |
-
2017
- 2017-05-11 CN CN201710331225.9A patent/CN107143526B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2285383Y (en) * | 1996-04-22 | 1998-07-01 | 蚌埠市风机厂 | High-pressure centrifugal blower fan with air-resistant ring |
| CN201858192U (en) * | 2010-11-10 | 2011-06-08 | 天津市鼓风机总厂 | Fan main body of centrifugal fan for producing blue carbon |
| CN202579241U (en) * | 2012-05-11 | 2012-12-05 | 上虞广通风机有限公司 | High-efficiency energy-saving mixed-flow type ventilator |
| CN205401255U (en) * | 2016-02-29 | 2016-07-27 | 宁波方太厨具有限公司 | A collector of making an uproar falls for centrifugal fan among range hood |
| CN106382239A (en) * | 2016-10-14 | 2017-02-08 | 重庆通用工业(集团)有限责任公司 | Anti-adhesion centrifugal ventilation machine |
| CN206801953U (en) * | 2017-05-11 | 2017-12-26 | 南通升科节能技术有限公司 | Centrifugal blower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488083A (en) * | 2018-04-26 | 2018-09-04 | 英飞凌（深圳）智慧科技有限公司 | A kind of wind turbine and air purifier |
| CN109779970A (en) * | 2019-01-26 | 2019-05-21 | 宁波纽新克电机股份有限公司 | The bionical noise-lowering centrifugal blower of fin shape |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107143526B (en) | 2023-12-26 |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Room 1606, Building 43, Zhongnan Century City, Chongchuan District, Nantong City, Jiangsu Province, 226000 Applicant after: Jiangsu Shengke Energy Saving Technology Co.,Ltd. Address before: Room 706 and 707, Building 3, Nantong Science and Technology Park, No. 58 Chongchuan Road, Chongchuan District, Nantong City, Jiangsu Province, 226000 Applicant before: NANTONG SHENGKE ENERGY SAVING TECHNOLOGY CO.,LTD. |
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| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |