CN206957991U - A kind of noise abatement air blower - Google Patents
A kind of noise abatement air blower Download PDFInfo
- Publication number
- CN206957991U CN206957991U CN201720894987.5U CN201720894987U CN206957991U CN 206957991 U CN206957991 U CN 206957991U CN 201720894987 U CN201720894987 U CN 201720894987U CN 206957991 U CN206957991 U CN 206957991U
- Authority
- CN
- China
- Prior art keywords
- air channel
- raised line
- air
- impeller
- noise abatement
- 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
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of noise abatement air blower, including shell (1) and the impeller (2) being located in the shell (1), the shell (1) has the air channel (11) for leading to outside, a tangential direction of the air channel (11) parallel to the impeller (2), the raised line (3) parallel to the impeller (2) central shaft is provided with the air channel (11), when the impeller (2) rotates, point to the upper inside walls of the air channel (11) in the direction of air flow, the raised line (3) is the 1/5~1/6 of the air channel (11) height apart from the distance of the air channel (11) upper inside walls.The utility model is simple in construction, and cost is low, the design of raised line it was proved that, effectively reduce the noise of air outlet, air blast noise of the year-on-year same structure without raised line reduces about 5dB.
Description
Technical field
Blower fan technical field is the utility model is related to, is specifically related to a kind of noise abatement air blower.
Background technology
Air blower common in the art is straight without progress noise abatement processing, the high velocity air of impeller blowout on air outlet
Take in the side wall of air outlet, impeller is apart from air outlet is too remote, wind knockout press is not excessive buffered, therefore it is larger to hit sound.
Utility model content
The utility model devises a kind of noise abatement air blower in view of the shortcomings of the prior art.
The utility model is realizes object above, using following scheme：A kind of noise abatement air blower, including shell and be located at
Impeller in the shell, the shell have the air channel for leading to outside, a tangent line side of the air channel parallel to the impeller
To provided with the raised line parallel to the impeller middle spindle in the air channel, when the impeller rotates, the direction of air flow refers to
To the upper inside walls in the air channel, the raised line apart from the air channel upper inside walls distance for the air channel height 1/5~
1/6。
Further, the raised line is the 1/6 of the air channel height apart from the distance of the air channel upper inside walls.
Further, the raised line is provided with some through holes, is additionally provided with cavity inside it, sponge is filled with the cavity
Layer, through hole lead to internal cavities, and internal spongy layer absorbs a part of wind-force, play a part of buffering and absorbing noise, improve
The service life of raised line, long-term stress is avoided to be broken.
Further, the cross section of the raised line is rectangle.
Further, the cross section of the raised line is circle.
Compared to the prior art the utility model, has the following advantages that and beneficial effect：Simple in construction, cost is low, raised line
Design it was proved that, effectively reduce the noise of air outlet, air blast noise drop of the year-on-year same structure without raised line
Low about 5dB.
Brief description of the drawings
Fig. 1 is the utility model section view；
Fig. 2 is Fig. 1 left view；
Fig. 3 is cord tissue schematic diagram.
Embodiment
With reference to Fig. 1 to Fig. 3, a kind of noise abatement air blower, including shell 1 and the impeller 2 that is located in the shell 1, it is described
Shell 1 has an air channel 11 for leading to outside, the air channel 11 parallel to the impeller 2 a tangential direction, in the air channel 11
Provided with the raised line 3 parallel to the central shaft of impeller 2, when the impeller 2 rotates, the air channel is pointed in the direction of air flow
11 upper inside walls, the raised line 3 are the 1/5~1/6 of the height of air channel 11 apart from the distance of the upper inside walls of air channel 11,
As one preferably, as shown in Fig. 2 when raised line 3 is apart from the upper inside walls of air channel 11 1/6 for the height of air channel 11, obtain preferable
Effect.
Cavity is additionally provided with as shown in figure 3, the raised line 3 is provided with some through holes 31, inside it, is filled with the cavity
Spongy layer 32, through hole lead to internal cavities, and internal spongy layer absorbs a part of wind-force, play buffering and absorb the work of noise
With improving the service life of raised line, avoid long-term stress from being broken.
The cross section of the raised line 3 can be rectangle or circle, and raised line 3 can be made of rigid plastics, further save
Cost.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and modification can also be made, these change
Enter and also should be regarded as the scope of protection of the utility model with modification.
Claims (5)
1. a kind of noise abatement air blower, including shell (1) and the impeller (2) that is located in the shell (1), shell (1) tool
There are the air channel (11) for leading to outside, a tangential direction of the air channel (11) parallel to the impeller (2), it is characterised in that：Institute
State the raised line (3) being provided with air channel (11) parallel to the impeller (2) central shaft, when the impeller (2) rotates, air flow
Direction point to the upper inside walls of the air channel (11), the raised line (3) is apart from the distance of the air channel (11) upper inside walls
The 1/5~1/6 of air channel (11) height.
A kind of 2. noise abatement air blower as claimed in claim 1, it is characterised in that：The raised line (3) is apart from the air channel (11)
The distance of upper inside walls is the 1/6 of the air channel (11) height.
A kind of 3. noise abatement air blower as claimed in claim 1 or 2, it is characterised in that：The raised line (3) is provided with some through holes
(31) cavity, is additionally provided with inside it, spongy layer (32) is filled with the cavity.
A kind of 4. noise abatement air blower as claimed in claim 3, it is characterised in that：The cross section of the raised line (3) is rectangle.
A kind of 5. noise abatement air blower as claimed in claim 3, it is characterised in that：The cross section of the raised line (3) is circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720894987.5U CN206957991U (en) | 2017-07-21 | 2017-07-21 | A kind of noise abatement air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720894987.5U CN206957991U (en) | 2017-07-21 | 2017-07-21 | A kind of noise abatement air blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206957991U true CN206957991U (en) | 2018-02-02 |
Family
ID=61382258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720894987.5U Active CN206957991U (en) | 2017-07-21 | 2017-07-21 | A kind of noise abatement air blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206957991U (en) |
-
2017
- 2017-07-21 CN CN201720894987.5U patent/CN206957991U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206073182U (en) | The water conservancy diversion sound-absorbing solid noise reduction system of lampblack absorber | |
| CN104132003A (en) | Silencer of positive pressure ventilation equipment | |
| CN206389992U (en) | A kind of blow-drying machine for pets | |
| CN207487035U (en) | A kind of mute type tower fan | |
| CN206957991U (en) | A kind of noise abatement air blower | |
| CN207797326U (en) | A kind of basement is for building energy-efficient to change wind ventilation device | |
| CN204003615U (en) | A kind of spiral case of centrifugal blower | |
| CN206803261U (en) | A kind of low noise lampblack absorber | |
| CN201934380U (en) | Fan blade of ventilation fan | |
| CN205401059U (en) | Foldable bladeless fan of humidification | |
| CN203847447U (en) | Low-noise draught fan | |
| CN207145285U (en) | USB Bluetooth audio device bladeless fans | |
| CN202707633U (en) | Sound attenuation fan machine | |
| CN206592305U (en) | A kind of centrifugal blower | |
| CN206469421U (en) | A kind of self-priming outdoor exhaust outlet | |
| CN207075159U (en) | A kind of active power amplifier structure | |
| CN208191103U (en) | A kind of ventilation air duct structure of equipment safe cabinet | |
| CN206257078U (en) | A kind of cooling fan | |
| CN205654614U (en) | Small -size fan and air intake falls makes an uproar device and adopts breathing machine of this fan thereof | |
| CN205876758U (en) | Airfoil fan multiple wing formula centrifugal fan | |
| CN105736325A (en) | Inward air inlet type air tunnel air supply device | |
| CN208900401U (en) | A kind of noiseless ventilation fan | |
| CN203463361U (en) | Meridian fan | |
| CN206708107U (en) | A kind of fixed structure on blower of cleaner head | |
| CN203404130U (en) | Cooling fan for transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |