CN202789713U - Impeller and fan with same - Google Patents
Impeller and fan with same Download PDFInfo
- Publication number
- CN202789713U CN202789713U CN 201220469438 CN201220469438U CN202789713U CN 202789713 U CN202789713 U CN 202789713U CN 201220469438 CN201220469438 CN 201220469438 CN 201220469438 U CN201220469438 U CN 201220469438U CN 202789713 U CN202789713 U CN 202789713U
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- CN
- China
- Prior art keywords
- impeller
- housing
- internal cavities
- fan
- hole
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an impeller. The impeller comprises an impeller main body and a protecting hood, wherein the impeller main body comprises an approximately-conical hub and a plurality of blades connected onto the hub, and the protecting hood is connected with outer side edges of the blades; and the protecting hood comprises a shell body, a silencing member and at least one through hole, wherein the shell body is provided with an internal cavity, the silencing member is located in the internal cavity, and the at least one through hole is formed in the shell body. The utility model further provides a fan with the impeller. The impeller or fan is lower in noise.
Description
Technical field
The fan that the utility model relates to a kind of impeller and has this kind impeller.
Background technique
Traditional domestic fan generally includes the impeller that rotates around central rotating shaft and the motor of drives impeller rotary work.Impeller is usually located in the cage, and this cage allows air stream to pass housing, yet but stops the user to touch the impeller of rotation when using fan.
Just commercial the use with the impeller of cage without blade fan launched air stream from fan in recent years.Generally include pedestal and the nozzle that is arranged on the pedestal without blade fan, in pedestal, be provided with the impeller that is driven by motor, this kind impeller comprises the wheel hub and a plurality of blades that are connected on the described wheel hub of the general conical with central shaft hole, this kind impeller needs High Rotation Speed work usually, and its maximum (top) speed is up to 8000 rev/mins.
This kind impeller have be shaped easily, the manufacturing efficiency high, but the noise that produces during rotary work is larger.
Summary of the invention
First aspect of the present utility model is will provide-kind of impeller, this kind impeller, it is characterized in that, described impeller comprises impeller bodies and guard shield, described impeller bodies comprises the wheel hub and a plurality of blades that are connected on the described wheel hub of the general conical with central shaft hole, described guard shield is connected to the outer ledge of described blade so that around described wheel hub and described blade, and described guard shield comprises that the housing with internal cavities, the noise reduction member that is arranged in described internal cavities and at least one are arranged on the described housing and the through hole that is communicated with described internal cavities.
Because the guard shield of this kind impeller has the noise reduction member, the noise that produces when being conducive to decay vane rotary work, the noise that impeller is produced obviously reduces.
Preferably, described housing comprises the first housing and the second housing that limits described internal cavities, and wherein, the first housing is surrounded by the second housing substantially.
In a preferred embodiment, described housing comprises the first housing and the second housing that limits described internal cavities, and wherein, the first housing is surrounded by the second housing substantially, and described the first housing is fixed by binding agent and the second housing.
In another preferred embodiment, described housing comprises the first housing and the second housing that limits described internal cavities, and wherein, the first housing is surrounded by the second housing substantially, and described through hole is positioned on described the first housing.
Preferably, described internal cavities has a plurality of.
Preferably, described internal cavities is substantially annular.
Described through hole can be various shape, can be circular, can be round rectangle, can also be other shape; The aperture of described through hole is usually between 0.5mm to 8mm, preferably between 0.5mm to 5mm.
The blade quantity of described impeller is usually 3 to 23 scope, preferably 3 to 11 scope.
Described noise reduction member comprises acoustic foam, and acoustic foam comprises sponge and glass wool; Described noise reduction member can be various shape, and the shape of described noise reduction member comprises annular and part annular.
Described noise reduction member comprises the noise reduction layer, and wherein, the thickness of noise reduction layer is between 1mm to 20mm.
Second aspect of the present utility model is will provide-kind of fan, this kind fan, it is characterized in that, described impeller comprises impeller bodies and guard shield, described impeller bodies comprises the wheel hub and a plurality of blades that are connected on the described wheel hub of the general conical with central shaft hole, described guard shield is connected to the outer ledge of described blade so that around described wheel hub and described blade, and described guard shield comprises that the housing with internal cavities, the noise reduction member that is arranged in described internal cavities and at least one are arranged on the described housing and the through hole that is communicated with described internal cavities.
Preferably, described housing comprises the first housing and the second housing that limits described internal cavities, and wherein, the first housing is surrounded by the second housing substantially.
Preferably, described internal cavities has a plurality of; Described internal cavities is substantially annular.
Above-mentioned feature about first aspect of the present utility model also is applied to second aspect of the present utility model equally.
In a preferred embodiment, described fan comprises nozzle, impeller chimney, be positioned at the impeller of impeller chimney and the motor of drives impeller rotary work, described impeller comprises impeller bodies and guard shield, described impeller bodies comprises the wheel hub and a plurality of blades that are connected on the described wheel hub of the general conical with central shaft hole, described guard shield is connected to the outer ledge of described blade so that around described wheel hub and described blade, described guard shield comprises the housing with internal cavities, the noise reduction member that is arranged in described internal cavities is arranged on the described housing and the through hole that is communicated with described internal cavities with at least one.
Description of drawings
Figure l is the front schematic view of fan of the present utility model.
Fig. 2 is the side view of fan shown in Figure 1.
Fig. 3 is the sectional view that A-the A line intercepts along fan shown in Figure 1.
Fig. 4 is the view after the amplification of the impeller among Fig. 3.
Fig. 5 is the decomposition view of the impeller among Fig. 4.
Fig. 6 has showed the another kind of replacing structure of impeller.
Embodiment
Figure l is that Fig. 2 is the side view of fan shown in Figure 1 from the schematic representation of the fan of the present utility model of device forward observation, and Fig. 3 has shown the internal structure of fan shown in Figure 1.Can find out that from Fig. 1 to Fig. 3 this kind fan comprises pedestal 1 and the nozzle 2 that is arranged on the pedestal 1; Pedestal 1 comprises Base body 4 and is positioned at base portion 3 below the Base body 4, and Base body 4 has sidewall, and sidewall comprises air inlet 5, and air inlet 5 is the form of grid hole; Base body 4 comprises impeller chimney 10, is positioned at the impeller 11 of impeller chimney and the motor 12 of drives impeller rotary work, and impeller chimney 10 has air intlet 13 and air outlet slit 14; Nozzle 2 comprises receiving from the air outlet slit 14 of impeller chimney inner passage 7 and the relief opening 8 of air-flows, and nozzle 2 defines an opening 6, and this opening is to have an opening that circle lacks, and has axis X at the central part of this opening.
Fig. 4 is the view after the amplification of the impeller among Fig. 3, and Fig. 5 is the decomposition view of the impeller among Fig. 4.Can find out that from Fig. 4 and Fig. 5 impeller 11 comprises impeller bodies 15 and guard shield 22; Impeller bodies 15 comprises the wheel hub 16 and a plurality of blades 17 that are connected on the wheel hub of the general conical with central shaft hole 9; Guard shield 22 is connected to the outer ledge of blade, and guard shield 22 comprises the housing 18 with internal cavities 19, the noise reduction member 20 that is arranged in internal cavities 19 and a plurality of through hole 21; Housing 18 comprises the first housing 23 and the second housing 24, and wherein, the first housing 23 is surrounded by the second housing 24 substantially, and a plurality of through holes 21 are positioned on the first housing 23.
In the present embodiment, the shape of internal cavities 19 is substantially annular, and the shape of noise reduction member 20 also is substantially annular, and the noise reduction member that noise reduction member 20 consists of for the glass wool material, through hole 21 are about the manhole of 1mm for diameter.
During this kind fan work, be positioned at motor 12 drives impeller 11 rotary works of pedestal 1, air can be drawn into from the air inlet 5 that is positioned on the Base body 4, the air that enters in the Base body 4 is admitted to after boosting in the inner passage 7 of nozzle 2, and be deflated mouthfuls 8 ejections, being deflated mouthful 8 air-flows that spray from the air of fan outside by opening 6 entrainments, the air-flow that is ejected and the air-flow that is entrainmented consist of the total air flow that penetrates forward from nozzle 2, because the guard shield of this kind impeller has the noise reduction member, the noise that its impeller produces obviously reduces.
Fig. 6 has showed the another kind of replacing structure of impeller, and as can be seen from Figure 6, the impeller of present embodiment is similar to impeller shown in Figure 4, and just the quantity of internal cavities 19 and noise reduction member 20 is different.In the present embodiment, the quantity of internal cavities 19 and noise reduction member 20 all is 3.
The detailed description that the utility model is not limited to provide above.Those skilled in the art should be understood that deformation program of the present utility model.For example, internal cavities and noise reduction member can have any suitable structure, and the density of noise reduction member and mass distribution can change.
Claims (10)
1. impeller, it is characterized in that, described impeller comprises impeller bodies (15) and guard shield (22), described impeller bodies comprise have central shaft hole (9) general conical wheel hub (16) and be connected to a plurality of blades (17) on the described wheel hub, described guard shield is connected to the outer ledge of described blade so that around described wheel hub and described blade, and described guard shield comprises the have internal cavities housing (18) of (19), be arranged in the noise reduction member (20) of described internal cavities and the through hole (21) that at least one is arranged on the described housing and is communicated with described internal cavities.
2. such as the described impeller of claim l, it is characterized in that described housing comprises the first housing (23) and the second housing (24) that limits described internal cavities, wherein, the first housing is surrounded by the second housing substantially.
3. such as the described impeller of claim l, it is characterized in that described internal cavities has a plurality of.
4. such as the described impeller of one of claim l to 3, it is characterized in that described internal cavities is substantially annular.
5. such as the described impeller of one of claim l to 3, it is characterized in that the aperture of described through hole is between 0.5mm to 5mm.
6. such as the described impeller of one of claim l to 3, it is characterized in that described noise reduction member comprises acoustic foam.
7. such as the described impeller of one of claim l to 3, it is characterized in that the quantity of described blade is 3 to 19 scope.
8. impeller as claimed in claim 2 is characterized in that, described the first housing is fixed by binding agent and the second housing.
9. impeller as claimed in claim 2 is characterized in that, described through hole is positioned on described the first housing.
10. a fan is characterized in that, described fan comprises such as the described impeller of one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220469438 CN202789713U (en) | 2012-09-16 | 2012-09-16 | Impeller and fan with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220469438 CN202789713U (en) | 2012-09-16 | 2012-09-16 | Impeller and fan with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789713U true CN202789713U (en) | 2013-03-13 |
Family
ID=47816981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220469438 Expired - Fee Related CN202789713U (en) | 2012-09-16 | 2012-09-16 | Impeller and fan with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671245A (en) * | 2012-09-16 | 2014-03-26 | 陈大林 | Impeller and fan with impeller |
-
2012
- 2012-09-16 CN CN 201220469438 patent/CN202789713U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671245A (en) * | 2012-09-16 | 2014-03-26 | 陈大林 | Impeller and fan with impeller |
| CN103671245B (en) * | 2012-09-16 | 2016-12-21 | 陈大林 | Impeller and the fan with this kind of impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130916 |