CN104214118A - Round pipeline fan - Google Patents
Round pipeline fan Download PDFInfo
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- CN104214118A CN104214118A CN201410458842.1A CN201410458842A CN104214118A CN 104214118 A CN104214118 A CN 104214118A CN 201410458842 A CN201410458842 A CN 201410458842A CN 104214118 A CN104214118 A CN 104214118A
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- external rotor
- impeller
- air intake
- pipeline fan
- electric machine
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Abstract
The invention discloses a round pipeline fan with low noise, which comprises a left shell, a right shell, an air outlet end formed at one side of the left shell and an air inlet end formed at one side of the right shell. the air outlet end and the air inlet end are respectively connected with an exhaust pipeline; the left shell is connected with the right shell by a flange plate; cross fixed frames are respectively arranged in the air outlet end and the air inlet end; fixed rings are welded at the staggered positions of the cross fixed frames; an impeller and a double shaft extension outer rotor motor are arranged in the left shell and the right shell; an outer rotor enclosure of the double shaft extension outer rotor motor and the impeller are of an integrated structure; both ends of a motor shaft of the double shaft extension outer rotor motor are respectively embedded in the fixed rings.
Description
Technical field
The present invention relates to a kind of blower fan, particularly relate to a kind of circular pipeline fan.
Background technique
Circular pipeline fan is the Novel direct ventilator that a kind of advanced stretch forming technology is combined with aerodynamics, can directly be connected with round screw thread airduct or pvc pipe, can greatly save Pipe installing expense.Therefore its application in the mechanical ventilation system of the occasions such as hotel, supermarket, school, hospital is also more and more extensive.In use can there is larger noise in existing circular pipeline fan, originally circular pipeline fan is all adopt single shaft to stretch external rotor electric machine, and single shaft is stretched external rotor electric machine and only had one end to be fixed on housing, there will be vibration and produce noise during operation; Air intake and the outlet air end of circular pipeline fan are all directly be connected with exhaust duct, do not have buffer function, easily produce noise; In addition, between impeller and motor, usually adopt Flange joint, easily loosen in the process of Long-Time Service, connect unstable, also can produce vibration and noise.Simultaneously in the process of circular pipeline fan work, exhaust duct easily sucks foreign material, damages impeller and motor, extremely bothers.
Summary of the invention
Technical problem to be solved by this invention is: provide the circular pipeline fan that a kind of noise is little.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: circular pipeline fan, comprise: left shell and right shell body, be arranged on the outlet air end of left shell side, be arranged on the air intake of right shell body side, described outlet air end is connected with exhaust duct respectively with air intake, be connected by flange plate between described left shell and right shell body, crisscross fixer is respectively arranged with in described outlet air end and air intake, the position that described crisscross fixer is staggered is welded with retaining ring, impeller and Double shaft-extension external rotor electric machine is provided with in described left shell and right shell body, external rotor casing and the impeller of described twin shaft external rotor electric machine are structure as a whole, the motor shaft two ends of described twin shaft external rotor electric machine are embedded in retaining ring respectively.
In order to solve the problems of the technologies described above better, the further technological scheme that the present invention adopts is: adopt casting integrated structure or welded structure between the external rotor casing of described twin shaft external rotor electric machine and impeller.
In order to solve the problems of the technologies described above better, the further technological scheme that the present invention adopts is: the one end be connected with air intake with described exhaust duct on one end that described exhaust duct is connected with outlet air end is respectively arranged with annular fold.
In order to solve the problems of the technologies described above better, the further technological scheme that the present invention adopts is: in described air intake, be provided with filter screen.
Advantage of the present invention is: above-mentioned circular pipeline fan, by Double shaft-extension external rotor electric machine, the two ends of motor are fixed on housing simultaneously, structure is more firm, noise is little, one end that exhaust duct is connected with outlet air end on the one end be connected with air intake with exhaust duct be respectively arranged with annular fold, effectively can cushion the vibration & noise between blower fan and exhaust duct, in addition, one is adopted to weld or integrally casting between impeller with motor, ensure can not produce resonance between impeller and motor, noise reduction to minimizing, in air intake, be provided with filter screen simultaneously, place the impurity sucked in exhaust duct and damage impeller and motor, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of circular pipeline fan of the present invention.
Fig. 2 is the right TV structure schematic diagram of circular pipeline fan in Fig. 1.
In figure: 1, left shell, 2, right shell body, 3, outlet air end, 4, air intake, 5, exhaust duct, 6, flange plate, 7, crisscross fixer, 8, retaining ring, 9, impeller, 10, Double shaft-extension external rotor electric machine, 11, external rotor casing, 12, motor shaft, 13, annular fold, 14, filter screen.
Embodiment
Particular content of the present invention is described in detail below in conjunction with the drawings and specific embodiments.
As Fig. 1, shown in Fig. 2, circular pipeline fan, comprise: left shell 1 and right shell body 2, be arranged on the outlet air end 3 of left shell 1 side, be arranged on the air intake 4 of right shell body 2 side, described outlet air end 3 is connected with exhaust duct 5 respectively with air intake 4, be connected by flange plate 6 between described left shell 1 and right shell body 2, crisscross fixer 7 is respectively arranged with in described outlet air end 3 and air intake 4, the position that described crisscross fixer 7 is staggered is welded with retaining ring 8, impeller 9 and Double shaft-extension external rotor electric machine 10 is provided with in described left shell 1 and right shell body 2, external rotor casing 11 and the impeller 9 of described twin shaft external rotor electric machine 10 are structure as a whole, motor shaft 11 two ends of described twin shaft external rotor electric machine 10 are embedded in retaining ring 8 respectively.
As shown in Figure 1 and Figure 2, in this example, in order to prevent ensureing impeller stationarity in the course of the work, casting integrated structure or welded structure between the external rotor casing 1 of described twin shaft external rotor electric machine 10 and impeller 9, is adopted.
As shown in Figure 1 and Figure 2, in this example, in order to get rid of the vibration of blower fan on pipeline better, one end that one end that described exhaust duct 5 is connected with outlet air end 3 is connected with air intake 4 with described exhaust duct 5 is respectively arranged with annular fold 13.
As shown in Figure 1 and Figure 2, in this example, damage impeller 9 and Double shaft-extension external rotor electric machine 10 in order to foreign material can be sucked in exhaust duct 5 when preventing air intake, in described air intake 4, be provided with filter screen 14.
When above-mentioned circular pipeline fan uses, start Double shaft-extension external rotor electric machine 10, external rotor casing 11 impeller 9 of Double shaft-extension external rotor electric machine 10 rotates, indoor air is entered in housing from air intake 4 by exhaust duct 5, then to enter exhaust duct 5 discharge chamber by outlet air end 3 be outward indoor air-changing.
Above-mentioned circular pipeline fan, by Double shaft-extension external rotor electric machine, the two ends of motor are fixed on housing simultaneously, structure is more firm, noise is little, one end that exhaust duct is connected with outlet air end on the one end be connected with air intake with exhaust duct be respectively arranged with annular fold, effectively can cushion the vibration & noise between blower fan and exhaust duct, in addition, one is adopted to weld or integrally casting between impeller with motor, ensure can not produce resonance between impeller and motor, noise reduction to minimizing, in air intake, be provided with filter screen simultaneously, place the impurity sucked in exhaust duct and damage impeller and motor, safe and reliable.
Claims (4)
1. circular pipeline fan, it is characterized in that: comprising: left shell (1) and right shell body (2), be arranged on the outlet air end (3) of left shell (1) side, be arranged on the air intake (4) of right shell body (2) side, described outlet air end (3) is connected with exhaust duct (5) respectively with air intake (4), be connected by flange plate (6) between described left shell (1) and right shell body (2), crisscross fixer (7) is respectively arranged with in described outlet air end (3) and air intake (4), the position that described crisscross fixer (7) is staggered is welded with retaining ring (8), impeller (9) and Double shaft-extension external rotor electric machine (10) is provided with in described left shell (1) and right shell body (2), external rotor casing (11) and the impeller (9) of described twin shaft external rotor electric machine (10) are structure as a whole, motor shaft (12) two ends of described twin shaft external rotor electric machine (10) are embedded in retaining ring (8) respectively.
2. according to circular pipeline fan according to claim 1, it is characterized in that: between the external rotor casing (11) of described twin shaft external rotor electric machine (10) and impeller (9), adopt casting integrated structure or welded structure.
3. according to the circular pipeline fan described in claim 1 or 2, it is characterized in that: the one end be connected with air intake (4) with described exhaust duct (5) on one end that described exhaust duct (5) is connected with outlet air end (3) is respectively arranged with annular fold (13).
4., according to the circular pipeline fan described in claim 1 or 2 or 3, it is characterized in that: in described air intake (4), be provided with filter screen (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410458842.1A CN104214118A (en) | 2014-09-10 | 2014-09-10 | Round pipeline fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410458842.1A CN104214118A (en) | 2014-09-10 | 2014-09-10 | Round pipeline fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104214118A true CN104214118A (en) | 2014-12-17 |
Family
ID=52095931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410458842.1A Pending CN104214118A (en) | 2014-09-10 | 2014-09-10 | Round pipeline fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104214118A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939704A (en) * | 2017-11-08 | 2018-04-20 | 朱东 | A kind of piping shaft portable ventilation equipment wind turbine |
-
2014
- 2014-09-10 CN CN201410458842.1A patent/CN104214118A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939704A (en) * | 2017-11-08 | 2018-04-20 | 朱东 | A kind of piping shaft portable ventilation equipment wind turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141217 |