CN202789702U - Impeller and fan with the impeller - Google Patents
Impeller and fan with the impeller Download PDFInfo
- Publication number
- CN202789702U CN202789702U CN 201220441093 CN201220441093U CN202789702U CN 202789702 U CN202789702 U CN 202789702U CN 201220441093 CN201220441093 CN 201220441093 CN 201220441093 U CN201220441093 U CN 201220441093U CN 202789702 U CN202789702 U CN 202789702U
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- Prior art keywords
- impeller
- guard shield
- minute
- fan
- rotating shaft
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Abstract
The utility model relates to an impeller used for a fan, which is characterized in that the impeller comprises an impeller main body (12) and a shield (18), wherein the impeller main body comprises a roughly tapered hub (16) with a central axle hole, and a plurality of blades (17) connected to the hub; the shield is connected to the outer edge of the blades to surround the hub and the blades; the rotational inertia of the shield relative to the central axle hole is larger than that of the impeller main body relative to a rotating shaft. The utility model further provides the fan with the impeller. The impeller or the fan can generate lower vibration or noise.
Description
Technical field
The fan that the utility model relates to a kind of impeller for fan 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, the plastic impeller of being made by the employing plastic materials of motor driving is set in pedestal, this kind plastic impeller comprises impeller bodies and guard shield, it is lightweight, rotary inertia is little with respect to impeller bodies for described guard shield, its guard shield with respect to the rotary inertia of central rotating shaft usually less than impeller bodies with respect to 1/3rd of the rotary inertia of described central rotating shaft, and this kind plastic impeller needs High Rotation Speed work usually, and its maximum (top) speed is up to 8000 rev/mins.
This kind plastic impeller has be shaped easy, manufacturing efficiency high, but because rotary inertia is little, its transient equiliblium ability during High Rotation Speed produces larger vibration or noise easily.
Summary of the invention
First aspect of the present utility model is will provide-kind of the impeller for fan, this kind is used for the impeller of 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 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 with respect to the rotary inertia of the rotating shaft by described central shaft hole greater than the rotary inertia of described impeller bodies with respect to described rotating shaft.
Advantageously, this kind is used for the impeller of fan owing to adopted the guard shield that has than large rotating inertia, and the rotary inertia of whole impeller is obviously increased, and rotatablely moving of impeller tended to be steady, the vibration or the noise that have produced when significantly having reduced vane rotary work; This kind has the effect that not only has the protection blade than the guard shield of large rotating inertia, but also the effect with steady whole wheel rotation.
The shape of described guard shield is generally substantially frustoconical; Described impeller bodies is usually by the plastic materials manufacturing, and described guard shield is usually by the metallic material manufacturing; Described plastics comprise engineering plastics, and described metallic material comprises Steel material.
Described guard shield is with respect to respect to the rotary inertia of described rotating shaft 1.5 times to 20 times of the normally described impeller bodies of the rotary inertia of described rotating shaft, preferably 2 times to 10 times.
Preferably, described guard shield comprise first minute guard shield and with the fixing second minute guard shield of described first minute guard shield.
Preferably, described guard shield comprise first minute guard shield and with the fixing second minute guard shield of described first minute guard shield, wherein, guard shield was around described first minute guard shield in described second minute, described second minute guard shield is by the metallic material manufacturing, and guard shield was by the plastic materials manufacturing in described first minute.
In a preferred embodiment, described first minute guard shield fixed by binding agent and described second minute guard shield.
The blade quantity of described impeller is usually 3 to 19 scope, preferably 3 to 11 scope.
Second aspect of the present utility model is will provide-kind of fan, this kind fan, it is characterized in that, described fan comprises impeller, 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 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 with respect to the rotary inertia of the rotating shaft by described central shaft hole greater than the rotary inertia of described impeller bodies with respect to described rotating shaft.
Described guard shield is with respect to respect to the rotary inertia of described rotating shaft 1.5 times to 20 times of the normally described impeller bodies of the rotary inertia of described rotating shaft, preferably 2 times to 10 times.
Preferably, described guard shield comprise first minute guard shield and with the fixing second minute guard shield of described first minute guard shield.
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 device and the nozzle that is used to form air-flow, the described device that is used to form air-flow comprises 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 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 is about described impeller bodies with respect to 5 times of the rotary inertia of described rotating shaft with respect to the rotary inertia of the rotating shaft by described central shaft hole, and described nozzle comprises for the inner passage that receives air-flow and is used for the relief opening of emission air-flow.
Described nozzle can limit an opening, and the air-flow that penetrates from relief opening passes through described opening with the air intake outside the fan.Described nozzle can limit a plurality of openings, and its opening can be various shape, can be circular, oval, round rectangle, also can be the part annular, can also be other shape.
Described motor can be DC Brushless Motor, also can be alternating current motor; Preferably, in impeller chimney, there is diffuser with the impeller downstream.
Described fan can be desk fan, can be wall fan, can be ceiling fan, can be flooring fan, can also be the fan of other type.The miscellaneous function of described fan can comprise illumination, adjusting and the swing of fan.
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 zoomed-in view of the impeller among Fig. 3.
Fig. 5 is the three-dimensional view of the impeller bodies 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 15 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.In the present embodiment, Base body 4 relatively base portion 3 swings, and Base body 4 comprises top base main body 4a and bottom base main body 4b, and top base main body 4a can slide into oblique position with respect to bottom base main body 4b.
Fig. 4 is the zoomed-in view of the impeller among Fig. 3, and Fig. 5 is the three-dimensional view of the impeller bodies among Fig. 4.From Fig. 4 and Fig. 5, can find out, impeller 11 comprises impeller bodies 12 and guard shield 18, impeller bodies 12 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, and guard shield 18 is connected to the outer ledge of blade so that around wheel hub and blade.In the present embodiment, impeller bodies 12 adopts the plastic materials manufacturings, and guard shield 18 adopts the Steel material manufacturings, and guard shield 18 is about impeller bodies 12 with respect to 3 times of the rotary inertia of described rotating shaft with respect to the rotary inertia of the rotating shaft by central shaft hole 9.
During this kind fan work, be positioned at motor 15 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, be deflated mouthful 8 air-flows that spray from the air of fan outside by opening 6 and entrainment, the total air flow that the air-flow that is ejected and the air-flow formation of being entrainmented penetrate forward from nozzle 2.
Fig. 6 has showed the another kind of replacing structure of impeller.As can be seen from Figure 6, this impeller is similar to impeller shown in Figure 4, just the guard shield of the impeller of present embodiment is different, the guard shield of present embodiment comprise first minute guard shield 18a and with the fixing second minute guard shield 18b of first minute guard shield, wherein, second minute guard shield 18b was around first minute guard shield 18a, and second minute guard shield 18b is by the metallic material manufacturing, and guard shield 18a was by the plastic materials manufacturing in first minute.In the present embodiment, guard shield 18 is about impeller bodies 12 with respect to 5 times of the rotary inertia of described rotating shaft with respect to the rotary inertia of the rotating shaft by central shaft hole 9.
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, guard shield can have any suitable structure, and guard shield can adopt various ways with being fixedly connected with of impeller bodies, and the density of guard shield and impeller bodies and mass distribution can change.
Claims (9)
1. impeller that is used for fan, it is characterized in that, described impeller comprises impeller bodies (12) and guard shield (18), 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, described guard shield with respect to the rotary inertia of the rotating shaft by described central shaft hole greater than the rotary inertia of described impeller bodies with respect to described rotating shaft.
2. such as the described impeller of claim l, it is characterized in that, described guard shield comprise first minute guard shield (18a) and with the fixing second minute guard shield (18b) of described first minute guard shield.
3. such as the described impeller of claim l, it is characterized in that, described guard shield comprise first minute guard shield and with the fixing second minute guard shield of described first minute guard shield, wherein, guard shield was around described first minute guard shield in described second minute, described second minute guard shield is by the metallic material manufacturing, and guard shield was by the plastic materials manufacturing in described first minute.
4. such as the described impeller of one of claim l to 3, it is characterized in that described impeller bodies is by the plastic materials manufacturing.
5. such as the described impeller of one of claim l to 3, it is characterized in that described guard shield is described impeller bodies with respect to 2 times to 10 times of the rotary inertia of described rotating shaft with respect to the rotary inertia of described rotating shaft.
6. such as the described impeller of one of claim l to 3, it is characterized in that blade quantity is 3 to 19 scope.
7. such as the described impeller of one of claim l to 3, it is characterized in that, described guard shield be shaped as substantially frustoconical.
8. such as the described impeller of one of claim 2 to 3, it is characterized in that guard shield was fixed by binding agent and described second minute guard shield in described first minute.
9. a fan is characterized in that, described fan comprises such as the described impeller of one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220441093 CN202789702U (en) | 2012-09-01 | 2012-09-01 | Impeller and fan with the impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220441093 CN202789702U (en) | 2012-09-01 | 2012-09-01 | Impeller and fan with the impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789702U true CN202789702U (en) | 2013-03-13 |
Family
ID=47816971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220441093 Expired - Fee Related CN202789702U (en) | 2012-09-01 | 2012-09-01 | Impeller and fan with the impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789702U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013163925A1 (en) * | 2012-04-29 | 2013-11-07 | Ren Wenhua | Fan |
-
2012
- 2012-09-01 CN CN 201220441093 patent/CN202789702U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013163925A1 (en) * | 2012-04-29 | 2013-11-07 | Ren Wenhua | Fan |
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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: 20130901 |