CN104912825A - Centrifugal fan - Google Patents
Centrifugal fan Download PDFInfo
- Publication number
- CN104912825A CN104912825A CN201510219445.3A CN201510219445A CN104912825A CN 104912825 A CN104912825 A CN 104912825A CN 201510219445 A CN201510219445 A CN 201510219445A CN 104912825 A CN104912825 A CN 104912825A
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- Prior art keywords
- impeller
- electric machine
- housing
- external rotor
- rotor electric
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Abstract
The invention discloses a centrifugal fan which comprises a mounting frame, an outer rotor motor, an impeller, a shell body and a pressure taking pipe. The mounting frame is arranged at the two ends of the shell body. The outer rotor motor is arranged on the mounting frame and is arranged in the shell body. A rotor of the outer rotor motor is provided with an impeller. The mounting frame comprises a sleeve body and a connecting body arranged on the outer ring of the sleeve body. The sleeve body is arranged on a main shaft of the outer rotor motor in a sleeving mode and is fixed through a fastening bolt. The pressure taking pipe is arranged on the front wall of an air outlet of the shell body in a penetrating mode. The back end of the pressure taking pipe is turned vertically upwards to form a first turning part. The front end of the pressure taking pipe is vertically turned to form a second turning part which is perpendicular to the top face of the air outlet. A connecting soft pipe is arranged on the air outlet. Compared with the prior art, fixing reliability is high, arranging and detaching are convenient, vibration of a fan is prevented from being transmitted to an air way, during detecting, time and labor can be saved, and safety accidents caused by detecting detaching and assembling can be avoided.
Description
[technical field]
The present invention relates to the technical field of machinery, particularly a kind of technical field of centrifugal blower.
[background technique]
Blower fan is the mechanical energy relying on input, improve gas pressure to supply gas side by side the machinery of body, it is a kind of driven fluid machinery, and gas compression and gas conveying machinery are that the mechanical energy rotated is converted to gas pressure energy and kinetic energy, and the machinery that gas is transferred out.
Existing blower fan comprises housing, motor and rotation fan, motor and housing are arranged on base, and the rotatingshaft of motor is provided with and rotates fan, rotate fan and are located in housing, can find out, blower fan volume is large, takes up room, in order to solve the problem, thus there is the blower fan of built-in motor, although can save space-efficient to take, fixing poor reliability, installing/dismounting is inconvenient.
Because centrifugal blower is in working for a long time, temperature, pressure and air quantity can change to some extent, and impact normally uses, thus needs to transfer the parameter in centrifugal blower action, carries out suitable adjustment to centrifugal blower, ensure normally to use.In prior art, when obtaining the parameter in centrifugal blower action, being first the centrifugal blower assembled is removed, going to detect by main equipment, thus losing time, waste of manpower, and easily cause security incident in the process of dismounting.
Again because the exhaust outlet of blower fan and air channel are Hard link, the vibration passing that blower fan produces at work, on air channel, causes air channel to vibrate, from generation noise.
[summary of the invention]
The object of this reality invention solves the problems of the prior art exactly, proposes a kind of centrifugal blower, and it is high to fix reliability, easy installation and removal, avoids the vibration passing of blower fan on air channel, when detecting, can saving time, save manpower, avoiding the security incident occurred because detecting dismounting.
For achieving the above object, the invention of this reality proposes a kind of centrifugal blower, comprise scaffold, external rotor electric machine, impeller, housing and pressure pipe, the two ends of described housing are equipped with scaffold, described scaffold is provided with external rotor electric machine, described external rotor electric machine is located in housing, the rotor of described external rotor electric machine is provided with impeller, described scaffold is made up of body and the connecting body be located on body outer ring, described connecting body and housing are fixed together by clamping bolt, the main shaft that described body is enclosed within external rotor electric machine is fixed by clamping bolt, the antetheca of the exhaust outlet of described housing is equipped with pressure pipe, the rear end of described pressure pipe upwards vertically turns down formation first folding portion, the front end of described pressure pipe vertically turns down formation second folding portion, described second folding portion is vertical with the end face of exhaust outlet, described exhaust outlet is provided with connecting hose.
As preferably, the distance between described first folding portion and the antetheca of exhaust outlet equals the half of the distance between the antetheca of exhaust outlet and the central axis of exhaust outlet.
As preferably, the outer ring of described body is provided with four connecting bodys, and described four connecting bodys are uniformly distributed.
As preferably, the front-end and back-end of described housing are evenly provided with annular intensive aspect, and described annular intensive aspect and case weld link together, and described connecting body is fixedly connected with annular intensive aspect by clamping bolt.
As preferably, the rotor of described external rotor electric machine is provided with annular shirt rim, and described impeller is fixed together by screw and annular shirt rim.
As preferably, described impeller is made up of the first impeller and the second impeller, together with described first impeller is bolted to connection with the second impeller, the blade on described first impeller and the blade on the second impeller laterally staggered.
As preferably, the outer surface of described external rotor electric machine is coated with anticorrosive coat.
This real beneficial effect of the invention: the invention of this reality is by being equipped with scaffold by the two ends of housing, scaffold is provided with external rotor electric machine, scaffold is made up of body and the connecting body be located on body outer ring, connecting body and housing are fixed together by clamping bolt, the main shaft that body is enclosed within external rotor electric machine is fixed by clamping bolt, reliability can be fixed high, improve stability, easy installation and removal, the antetheca of the exhaust outlet of housing is equipped with pressure pipe, the rear end of pressure pipe upwards vertically turns down formation first folding portion, the front end of pressure pipe vertically turns down formation second folding portion, second folding portion is vertical with the end face of exhaust outlet, only needing to connect a rubber pipe on pressure pipe receives in instrument, the parameter of blower fan in action can be transferred at any time, can save time, save manpower, avoid the security incident occurred because detecting dismounting, the vibration passing that connecting hose can avoid blower fan to produce at work is on air channel, effectively reduce noise.
Feature and the advantage of the invention of this reality will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the structural representation of a kind of centrifugal blower of this reality invention.
In figure: 1-scaffold, 2-external rotor electric machine, 3-impeller, 4-housing, 5-pressure pipe, 6-exhaust outlet, 7-first folding portion, 8-second folding portion, 9-clamping bolt, 10-annular shirt rim, 11-body, 12-connecting body, 13-connecting hose, 14-annular intensive aspect, 31-first impeller, 32-second impeller.
[embodiment]
Consult Fig. 1, a kind of centrifugal blower of this reality invention, comprise scaffold 1, external rotor electric machine 2, impeller 3 housing 4 and pressure pipe 5, the two ends of described housing 4 are equipped with scaffold 1, described scaffold 1 is provided with external rotor electric machine 2, described external rotor electric machine 2 is located in housing 4, the rotor of described external rotor electric machine 2 is provided with impeller 3, described scaffold 1 is made up of body 11 and the connecting body 12 be located on body 11 outer ring, described connecting body 12 is fixed together by clamping bolt 9 with housing 4, the main shaft that described body 11 is enclosed within external rotor electric machine 2 is fixed by clamping bolt 9, the antetheca of the exhaust outlet 6 of described housing 4 is equipped with pressure pipe 5, the rear end of described pressure pipe 5 upwards vertically turns down formation first folding portion 7, the front end of described pressure pipe 5 vertically turns down formation second folding portion 8, described second folding portion 8 is vertical with the end face of exhaust outlet 6, described exhaust outlet 6 is provided with connecting hose 13, distance between described first folding portion 7 and the antetheca of exhaust outlet 6 equals the half of the distance between the antetheca of exhaust outlet 6 and the central axis of exhaust outlet 6, the outer ring of described body 11 is provided with four connecting bodys 12, described four connecting bodys 12 are uniformly distributed, the front-end and back-end of described housing 4 are evenly provided with annular intensive aspect 14, described annular intensive aspect 14 is welded together with housing 4, described connecting body 12 is fixedly connected with annular intensive aspect 14 by clamping bolt 9, the rotor of described external rotor electric machine 2 is provided with annular shirt rim 10, described impeller 3 is fixed together by screw and annular shirt rim 10, described impeller 3 is made up of the first impeller 31 and the second impeller 32, together with described first impeller 31 is bolted to connection with the second impeller 32, blade on described first impeller 31 and the blade on the second impeller 32 laterally staggered, the outer surface of described external rotor electric machine 2 is coated with anticorrosive coat.
This real invention working procedure:
A kind of centrifugal blower of this reality invention in the course of the work, start external rotor electric machine 2, external rotor electric machine 2 impeller 3 is rotated and is produced distinguished and admirable, distinguished and admirablely enter into air channel by connecting hose 13, when blower fan needs detachable maintaining, according to space, erecting bed, dismantle the clamping bolt 9 that the scaffold 1 of housing 4 one end and the main shaft of external rotor electric machine 2 and housing 4 the other end scaffold 1 are fixed, external rotor electric machine 2 and impeller 3 can be taken out, the two ends of housing 4 are equipped with scaffold 1, scaffold 1 is provided with external rotor electric machine 2, scaffold 1 is made up of body 11 and the connecting body 12 be located on body 11 outer ring, connecting body 12 and housing 4 are fixed together by clamping bolt 9, the main shaft that body 11 is enclosed within external rotor electric machine 2 is fixed by clamping bolt 9, reliability can be fixed high, improve stability, easy installation and removal, the antetheca of the exhaust outlet 6 of housing 4 is equipped with pressure pipe 5, the rear end of pressure pipe 5 upwards vertically turns down formation first folding portion 7, the front end of pressure pipe 5 vertically turns down formation second folding portion 8, second folding portion 8 is vertical with the end face of exhaust outlet 6, only needing to connect a rubber pipe on pressure pipe 5 receives in instrument, the parameter of blower fan in action can be transferred at any time, can save time, save manpower, avoid the security incident occurred because detecting dismounting, the vibration passing that connecting hose 13 can avoid blower fan to produce at work is on air channel, effectively reduce noise.
Above-described embodiment is the explanation to the invention of this reality, is not the restriction to the invention of this reality, any protection domain scheme after this real invention simple transformation all being belonged to the invention of this reality.
Claims (7)
1. a centrifugal blower, it is characterized in that: comprise scaffold (1), external rotor electric machine (2), impeller (3), housing (4) and pressure pipe (5), the two ends of described housing (4) are equipped with scaffold (1), described scaffold (1) is provided with external rotor electric machine (2), described external rotor electric machine (2) is located in housing (4), the rotor of described external rotor electric machine (2) is provided with impeller (3), described scaffold (1) is made up of body (11) and the connecting body (12) be located on body (11) outer ring, described connecting body (12) and housing (4) are fixed together by clamping bolt (9), the main shaft that described body (11) is enclosed within external rotor electric machine (2) is fixed by clamping bolt (9), the antetheca of the exhaust outlet (6) of described housing (4) is equipped with pressure pipe (5), the rear end of described pressure pipe (5) upwards vertically turns down formation first folding portion (7), the front end of described pressure pipe (5) vertically turns down formation second folding portion (8), described second folding portion (8) is vertical with the end face of exhaust outlet (6), described exhaust outlet (6) is provided with connecting hose (13).
2. a kind of centrifugal blower as claimed in claim 1, is characterized in that: the distance between described first folding portion (7) and the antetheca of exhaust outlet (6) equals the half of the distance between the antetheca of exhaust outlet (6) and the central axis of exhaust outlet (6).
3. a kind of centrifugal blower as claimed in claim 1, is characterized in that: the outer ring of described body (11) is provided with four connecting bodys (12), and described four connecting bodys (12) are uniformly distributed.
4. a kind of centrifugal blower as claimed in claim 1, it is characterized in that: the front-end and back-end of described housing (4) are evenly provided with annular intensive aspect (14), described annular intensive aspect (14) and housing (4) are welded together, and described connecting body (12) is fixedly connected with annular intensive aspect (14) by clamping bolt (9).
5. a kind of centrifugal blower as claimed in claim 1, it is characterized in that: the rotor of described external rotor electric machine (2) is provided with annular shirt rim (10), described impeller (3) is fixed together by screw and annular shirt rim (10).
6. a kind of centrifugal blower as claimed in claim 1, it is characterized in that: described impeller (3) is made up of the first impeller (31) and the second impeller (32), described first impeller (31) and the second impeller (32) are bolted to connection together, the blade on described first impeller (31) and the blade on the second impeller (32) laterally staggered.
7. a kind of centrifugal blower according to any one of claim 1 to 6, is characterized in that: the outer surface of described external rotor electric machine (2) is coated with anticorrosive coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510219445.3A CN104912825A (en) | 2015-04-30 | 2015-04-30 | Centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510219445.3A CN104912825A (en) | 2015-04-30 | 2015-04-30 | Centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104912825A true CN104912825A (en) | 2015-09-16 |
Family
ID=54082188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510219445.3A Pending CN104912825A (en) | 2015-04-30 | 2015-04-30 | Centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104912825A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076124A (en) * | 2020-08-20 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Centrifugal volute, centrifugal fan and range hood equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3707920A1 (en) * | 1987-03-12 | 1988-09-22 | Fischbach Gmbh & Co Kg | RADIAL BLOWER HOUSING |
| NL1001258C2 (en) * | 1995-09-21 | 1997-03-25 | Ubbink Nederland Bv | Equipment for mechanical ventilation of building |
| CN2484428Y (en) * | 2001-02-28 | 2002-04-03 | 许占奎 | Efficient low-noise straight-tabe fan |
| CN2866915Y (en) * | 2005-07-26 | 2007-02-07 | 刘楚年 | Pump clamping device |
| CN201021674Y (en) * | 2007-01-23 | 2008-02-13 | 黄开刚 | Deodorized air exchange fan for full pipe below air discharge |
| CN202628583U (en) * | 2011-12-31 | 2012-12-26 | 中山大洋电机股份有限公司 | Automatic regulating structure of pressure testing interface of fan |
| CN202971241U (en) * | 2012-11-30 | 2013-06-05 | 中山大洋电机股份有限公司 | Fan system driven by brushless outer rotor motor |
| CN203560117U (en) * | 2013-10-25 | 2014-04-23 | 浙江兴益风机电器有限公司 | External-rotor axial flow fan |
| CN204942013U (en) * | 2015-04-30 | 2016-01-06 | 浙江双双制冷设备有限公司 | A kind of centrifugal blower |
-
2015
- 2015-04-30 CN CN201510219445.3A patent/CN104912825A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3707920A1 (en) * | 1987-03-12 | 1988-09-22 | Fischbach Gmbh & Co Kg | RADIAL BLOWER HOUSING |
| NL1001258C2 (en) * | 1995-09-21 | 1997-03-25 | Ubbink Nederland Bv | Equipment for mechanical ventilation of building |
| CN2484428Y (en) * | 2001-02-28 | 2002-04-03 | 许占奎 | Efficient low-noise straight-tabe fan |
| CN2866915Y (en) * | 2005-07-26 | 2007-02-07 | 刘楚年 | Pump clamping device |
| CN201021674Y (en) * | 2007-01-23 | 2008-02-13 | 黄开刚 | Deodorized air exchange fan for full pipe below air discharge |
| CN202628583U (en) * | 2011-12-31 | 2012-12-26 | 中山大洋电机股份有限公司 | Automatic regulating structure of pressure testing interface of fan |
| CN202971241U (en) * | 2012-11-30 | 2013-06-05 | 中山大洋电机股份有限公司 | Fan system driven by brushless outer rotor motor |
| CN203560117U (en) * | 2013-10-25 | 2014-04-23 | 浙江兴益风机电器有限公司 | External-rotor axial flow fan |
| CN204942013U (en) * | 2015-04-30 | 2016-01-06 | 浙江双双制冷设备有限公司 | A kind of centrifugal blower |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076124A (en) * | 2020-08-20 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Centrifugal volute, centrifugal fan and range hood equipment |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160907 Address after: 311800 Zhejiang city of Shaoxing province Zhuji City Tao Street Millennium Road No. 22 Applicant after: Zhejiang shield rail traffic equipment Co., Ltd. Address before: 311800 Zhejiang city of Shaoxing province Zhuji City Tao Street Millennium Road No. 22 Applicant before: SHUANGSHUANG REFRIGERATING APPARATUS CO., LTD. |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150916 |