CN2795511Y - Centrifugal mini noise variable frequency ventilator - Google Patents
Centrifugal mini noise variable frequency ventilator Download PDFInfo
- Publication number
- CN2795511Y CN2795511Y CN 200520008856 CN200520008856U CN2795511Y CN 2795511 Y CN2795511 Y CN 2795511Y CN 200520008856 CN200520008856 CN 200520008856 CN 200520008856 U CN200520008856 U CN 200520008856U CN 2795511 Y CN2795511 Y CN 2795511Y
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- China
- Prior art keywords
- noise
- motor
- noise elimination
- muffling
- pressure box
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Abstract
The utility model relates to a centrifugal mini noise variable frequency ventilator which is composed of a vibration damping support frame 1, a wind inlet muffling still pressure box 2, an impeller 3, an electric machine muffler 4, a motor 5, a muffling machine shell 6 and a frequency converter, wherein the wind inlet muffling still pressure box is arranged at the lower part of the centrifugal mini noise variable frequency ventilator. The upper part of the wind inlet muffling still pressure box 2 is provided with the muffling machine shell 6, and the motor 5 is arranged at the upper part of the muffling machine shell 6. The impeller 3 which is fixedly connected with a motor shaft is positioned in the muffling machine shell 6, and the outer side of the motor 5 is provided with a motor muffler 4 and a motor cover plate 16 and is fixed on the muffling machine shell 6. The vibration damping support frame 1 is composed of a steel structure frame and a vibration damper, and the wind inlet muffling still pressure box 2 and the muffling machine shell 6 are composed of an iron plate and a sound absorbing material 15. The utility model has the advantages of small energy consumption, little noise, small vibration, convenient installation and maintenance and stepless speed regulation and is suitable for the ventilation of a common building, and wind quantity and noise can be regulated and controlled.
Description
Technical field
The utility model relates to blower fan, particularly a kind of centrifugal noise variable-frequency ventilation machine that declines that ventilation is used as buildings in general.
Background technique
At present, the blower fan noise reduction is taked passive improvement method mostly, promptly takes the noise control measure in the noise transmission approach.There are problems such as energy consumption is big, floor space big, noise reduction difference in traditional blower fan noise reduction measure.
Summary of the invention
The purpose of this utility model is to overcome present blower fan noise reduction and takes passive improvement method mostly, exist that energy consumption is big, floor space is big, the problem of noise reduction difference, provide that a kind of energy consumption is low, noise is little, vibration is little, floor space is little, no Transmitted chains, can be stepless regulated the centrifugal noise variable-frequency ventilation machine that declines.
The centrifugal noise variable-frequency ventilation machine that declines described in the utility model is made of shock absorber bracket, air intake noise elimination static pressure box, impeller, motor silencing apparatus, motor, noise elimination casing, frequency variator.Air intake noise elimination static pressure box is loaded on the bottom of the centrifugal noise variable-frequency ventilation machine that declines.The noise elimination casing is equipped with on the top of air intake noise elimination static pressure box.Motor is contained in the top of noise elimination casing, and the impeller that is connected with motor reel is positioned at the noise elimination casing.The outside of motor and top are equipped with motor silencing apparatus and motor cover plate respectively, and are fixed on the noise elimination casing.
Described shock absorber bracket is made of steel frame and vibration damper.
Air intake noise elimination static pressure box is made of intake grill, exhaust outlet and noise elimination housing.
The noise elimination casing is made of intake grill, exhaust outlet and noise elimination housing.The noise elimination housing is snail type structure.
Described air intake noise elimination static pressure box and noise elimination casing are made of iron plate and sound-absorbing material.
Described impeller and motor be for directly cooperating transmission, and the impeller installation that is the level of state.
Gap between the collection air port of impeller and little noise variable-frequency ventilation machine is an axial clearance.
The centrifugal noise variable-frequency ventilation facility that decline described in the utility model have energy consumption low, and noise is little, vibrate little, characteristics such as be easy for installation and maintenance, but stepless speed regulation simultaneously, air quantity, noise are all adjustable, can be used for the ventilation of buildings in general.
Description of drawings
Fig. 1 is the tectonic maps of the centrifugal noise variable-frequency ventilation machine that declines of the utility model.
Fig. 2 is the tectonic maps of air intake noise elimination static pressure box.
Fig. 3 is the tectonic maps of noise elimination casing.
Fig. 4 is the tectonic maps of motor silencing apparatus and motor cover plate.
Fig. 5 is impeller shaft and shaft strength schematic representation.
Fig. 6 is the radial clearance schematic representation for the gap between tradition ventilation machine impeller and the wind collecting unit.
Fig. 7 is the axial clearance schematic representation for the centrifugal gap that declines between noise variable-frequency ventilation machine impeller and the wind collecting unit of the utility model.
Embodiment
As shown in Figure 1, the centrifugal noise variable-frequency ventilation machine that declines of the utility model is made of shock absorber bracket 1, air intake noise elimination static pressure box 2, impeller 3, motor silencing apparatus 4, motor 5, noise elimination casing 6 and frequency variator.Air intake noise elimination static pressure box 2 is loaded on the bottom of the centrifugal noise variable-frequency ventilation machine that declines.Noise elimination casing 6 is equipped with on the top of air intake noise elimination static pressure box 2.Motor 5 is contained in the top of noise elimination casing 6, and the impeller 3 that is connected with motor reel is positioned at noise elimination casing 6.Motor silencing apparatus 4 and motor cover plate 16 are equipped with in the outside of motor 5, and are fixed on the noise elimination casing 6.
Described shock absorber bracket 1 is made of steel frame and vibration damper.
As shown in Figure 2, air intake noise elimination static pressure box is made of intake grill 8, exhaust outlet 10 and noise elimination housing 11.
As Fig. 1, shown in Figure 3, noise elimination casing 6 is made of intake grill 12, exhaust outlet 9 and noise elimination housing 13.Noise elimination housing 13 is snail type structure.
Described air intake noise elimination static pressure box 2 and noise elimination casing 6 are made of iron plate 14 and sound-absorbing material 15.
As shown in Figure 1, described impeller 3 and motor 5 be for directly cooperating transmission, and the impeller installation that is the level of state.
As shown in Figure 7, the gap between the collection air port 18 of impeller 3 and little noise variable-frequency ventilation machine is an axial clearance 17.
In the utility model, change the radial clearance of impeller 3 and wind collecting unit into axial clearance 17, thereby guaranteed impeller 3 and the quality of fit that collects between the air port, the efficient of blower fan is increased.
As shown in Figure 2, configuration has the noise elimination static pressure box 2 of base and cradling function, and noise and vibration can not outwards be propagated by pipeline and building.
As shown in Figure 3, noise elimination casing 6 adopts the volute structure, and wherein internal surface adds sound-absorbing material 15, can reduce the radiated noise of air-flow like this.
As shown in Figure 4, motor cover plate 16 and motor silencing apparatus 4 are installed at from sound source the most nearby, like this can be in the root position control noise transmission that noise produces.
As shown in Figure 5, change the drive manner of impeller 3, make it by original vertical guide running becoming horizontal plane running, so just fundamentally changed the force way of axle and bearing, make axle no longer be subjected to the gravity of impeller itself and the effect of moment, bearing by a stressed maximum, another stressed minimum become stressed evenly, then to be subjected to alternate load to become all balls stressed simultaneously and load is constant by single for ball.In addition, impeller 3 drive manners change, need not Transmitted chains, make the also corresponding minimizing of blower fan floor space.
In a word, the centrifugal noise variable-frequency ventilation machine that declines of the utility model has high efficiency, little noise, vibration is little, energy consumption is low, floor space is a little advantage.
Claims (6)
1. the centrifugal noise variable-frequency ventilation machine that declines is characterized in that: be made of shock absorber bracket, air intake noise elimination static pressure box, impeller, motor silencing apparatus, motor, noise elimination casing, frequency variator; Air intake noise elimination static pressure box is loaded on the bottom of the centrifugal noise variable-frequency ventilation machine that declines, and the noise elimination casing is equipped with on the top of air intake noise elimination static pressure box, and motor is contained in the top of noise elimination casing, and the impeller that is connected with motor reel is positioned at the noise elimination casing; The outside of motor and top are equipped with motor silencing apparatus and motor cover plate respectively, and are fixed on the noise elimination casing.
2. by the described centrifugal noise variable-frequency ventilation machine that declines of claim 1, it is characterized in that: air intake noise elimination static pressure box is made of intake grill, exhaust outlet and noise elimination housing.
3. by the described centrifugal noise variable-frequency ventilation machine that declines of claim 1, it is characterized in that: the noise elimination casing is made of intake grill, exhaust outlet and noise elimination housing, and the noise elimination housing is snail type structure.
4. by the described centrifugal noise variable-frequency ventilation machine that declines of claim 1, it is characterized in that: described air intake noise elimination static pressure box and noise elimination casing are made of iron plate and sound-absorbing material.
5. by the described centrifugal noise variable-frequency ventilation machine that declines of claim 1, it is characterized in that: the gap between the collection air port of described impeller and little noise variable-frequency ventilation machine is an axial clearance.
6. by the described centrifugal noise variable-frequency ventilation machine that declines of claim 1, it is characterized in that: impeller is directly to cooperate transmission with motor, and impeller is the level installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520008856 CN2795511Y (en) | 2005-03-22 | 2005-03-22 | Centrifugal mini noise variable frequency ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520008856 CN2795511Y (en) | 2005-03-22 | 2005-03-22 | Centrifugal mini noise variable frequency ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2795511Y true CN2795511Y (en) | 2006-07-12 |
Family
ID=36813266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520008856 Expired - Fee Related CN2795511Y (en) | 2005-03-22 | 2005-03-22 | Centrifugal mini noise variable frequency ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2795511Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008148249A1 (en) * | 2007-06-08 | 2008-12-11 | Zhiqiang Hong | Air-condition mat |
| CN101240923B (en) * | 2008-03-18 | 2010-12-08 | 李晨 | Ultra- mute purifiers unit |
| CN102900656A (en) * | 2010-12-17 | 2013-01-30 | 任文华 | Bladeless fan device |
| CN108826648A (en) * | 2018-08-01 | 2018-11-16 | 深圳市风轻云科技有限公司 | A kind of noise reduction air duct |
-
2005
- 2005-03-22 CN CN 200520008856 patent/CN2795511Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008148249A1 (en) * | 2007-06-08 | 2008-12-11 | Zhiqiang Hong | Air-condition mat |
| CN101240923B (en) * | 2008-03-18 | 2010-12-08 | 李晨 | Ultra- mute purifiers unit |
| CN102900656A (en) * | 2010-12-17 | 2013-01-30 | 任文华 | Bladeless fan device |
| CN108826648A (en) * | 2018-08-01 | 2018-11-16 | 深圳市风轻云科技有限公司 | A kind of noise reduction air duct |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |