CN103671240A - Impeller and fan with impeller - Google Patents
Impeller and fan with impeller Download PDFInfo
- Publication number
- CN103671240A CN103671240A CN201210318261.9A CN201210318261A CN103671240A CN 103671240 A CN103671240 A CN 103671240A CN 201210318261 A CN201210318261 A CN 201210318261A CN 103671240 A CN103671240 A CN 103671240A
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- Prior art keywords
- impeller
- guard shield
- minute
- fan
- rotating shaft
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Abstract
The invention relates to an impeller used for a fan. The impeller is characterized in that the impeller comprises an impeller body (12) and a shield (18), the impeller body comprises a roughly conical hub (16) with a center shaft hole, and a plurality of vanes (17) connected to the hub, the shield is connected to the outer side edges of the vanes to enclose the hub and the vanes, and the rotational inertia of the shield relative to a rotary shaft penetrating through the center shaft hole is larger than the rotational inertia of the impeller body relative to the rotary shaft. The invention further provides the fan with the impeller. The impeller or the fan has low vibration or noise.
Description
Technical field
The fan that the present invention relates to a kind of impeller for fan and there is this kind of 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 cage, and this cage allows air stream through housing, yet but stops user when using fan, to touch the impeller of rotation.
Just commercially in recent years without blade fan, do not use with the impeller of cage and launch air stream from fan.Without blade fan, generally include pedestal and be arranged on the nozzle on pedestal, the plastic impeller that the employing plastic materials that setting is driven by motor in pedestal is made, this kind of 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 conventionally less than impeller bodies with respect to 1/3rd of the rotary inertia of described central rotating shaft, and this kind of plastic impeller needs High Rotation Speed work conventionally, its maximum (top) speed is up to 8000 revs/min.
This kind of plastic impeller has be shaped easy, manufacturing efficiency high, but because rotary inertia is little, its transient equiliblium ability during High Rotation Speed, easily produces larger vibration or noise.
Summary of the invention
A first aspect of the present invention is will provide-kind of the impeller for fan, this kind is 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 of the general conical with central shaft hole and is connected to a plurality of blades on 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 is greater than described impeller bodies with respect to the rotary inertia of described rotating shaft with respect to the rotary inertia of the rotating shaft by described central shaft hole.
Advantageously, this kind owing to having adopted the guard shield having compared with large rotating inertia, obviously increases the rotary inertia of whole impeller for the impeller of fan, and rotatablely moving of impeller tended to be steady, the vibration or the noise that while significantly having reduced vane rotary work, have produced; This kind has the effect not only compared with the guard shield of large rotating inertia with protection blade, but also has the effect of steady whole wheel rotation.
The shape of described guard shield is generally frustoconical substantially; Described impeller bodies is manufactured by plastic materials conventionally, and described guard shield is manufactured by metallic material conventionally; Described plastics comprise engineering plastics, and described metallic material comprises Steel material.
Described guard shield is 1.5 times to 20 times with respect to the rotary inertia of described rotating shaft with respect to the normally described impeller bodies of 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, within described second minute, guard shield was around described first minute guard shield, within described second minute, guard shield is manufactured by metallic material, and within described first minute, guard shield is manufactured by plastic materials.
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 conventionally the scope of 3 to 19, preferably the scope of 3 to 11.
A second aspect of the present invention is will provide-kind of fan, this kind of 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 of the general conical with central shaft hole and is connected to a plurality of blades on 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 is greater than described impeller bodies with respect to the rotary inertia of described rotating shaft with respect to the rotary inertia of the rotating shaft by described central shaft hole.
Described guard shield is 1.5 times to 20 times with respect to the rotary inertia of described rotating shaft with respect to the normally described impeller bodies of 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.
The above-mentioned feature about a first aspect of the present invention is also applied to a second aspect of the present invention 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 of the general conical with central shaft hole and is connected to a plurality of blades on 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 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, described nozzle comprises for receiving the inner passage of air-flow and for launching the relief opening of air-flow.
Described nozzle can limit an opening, and the air-flow penetrating from relief opening passes through described opening by the air intake in fan outside.Described nozzle can limit a plurality of openings, and its opening can be various shape, can be circular, oval, round rectangle, can be also part annular, can also be other shape.
Described motor can be DC Brushless Motor, can be also alternating current motor; Preferably, in impeller chimney, there is diffuser with 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.
Accompanying drawing explanation
Figure l is the front schematic view of fan of the present invention.
Fig. 2 is the side view of fan shown in Fig. 1.
Fig. 3 is the sectional view that the A-A line along the fan shown in Fig. 1 intercepts.
Fig. 4 is the zoomed-in view of the impeller in Fig. 3.
Fig. 5 is the three-dimensional view of the impeller bodies in Fig. 4.
Fig. 6 has shown the another kind of replacing structure of impeller.
Embodiment
Figure l is that Fig. 2 is the side view of fan shown in Fig. 1 from the schematic diagram of the fan of the present invention of device forward observation, and Fig. 3 has shown the internal structure of fan shown in Fig. 1.From Fig. 1 to Fig. 3, can find out, this kind of fan comprises pedestal 1 and is arranged on the nozzle 2 on pedestal 1; Pedestal 1 comprises Base body 4 and is positioned at Base body 4 base portion 3 below, and Base body 4 has sidewall, and sidewall comprises air inlet 5, the form that air inlet 5 is 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 inner passage 7 and the relief opening 8 that receives air-flows for the air outlet slit 14 from impeller chimney, and nozzle 2 defines an opening 6, and this opening is to have the scarce opening of circle, at the central part of this opening, has axis X.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 in Fig. 3, and Fig. 5 is the three-dimensional view of the impeller bodies in 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 of the general conical with central shaft hole 9 and is connected to a plurality of blades 17 on wheel hub, 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 plastic materials manufactures, and guard shield 18 adopts Steel material manufactures, 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 of 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 being positioned at Base body 4, the air entering in Base body 4 is admitted in the inner passage 7 of nozzle 2 after boosting, and be deflated mouthfuls 8 ejections, from the air of fan outside, by opening 6, be deflated mouthful 8 air-flows that spray and entrainment, the total air flow that the air-flow being ejected and the air-flow formation of being entrainmented penetrate forward from nozzle 2.
Fig. 6 has shown the another kind of replacing structure of impeller.As can be seen from Figure 6, this impeller is similar to the impeller shown in Fig. 4, just the guard shield of the impeller of the present embodiment is different, the guard shield of the 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 within second minute, guard shield 18b is manufactured by metallic material, and within first minute, guard shield 18a is manufactured by plastic materials.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 present invention is not limited to provide above.Those skilled in the art should be understood that deformation program of the present invention.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. the impeller for fan, it is characterized in that, described impeller comprises impeller bodies (12) and guard shield (18), described impeller bodies comprise there is central shaft hole (9) general conical wheel hub (16) and be connected to a plurality of blades (17) on 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 is greater than described impeller bodies with respect to the rotary inertia of described rotating shaft with respect to the rotary inertia of the rotating shaft by described central shaft hole.
2. the impeller as described in claim l, 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. the impeller as described in 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, within described second minute, guard shield was around described first minute guard shield, within described second minute, guard shield is manufactured by metallic material, and within described first minute, guard shield is manufactured by plastic materials.
4. the impeller as described in one of claim l to 3, is characterized in that, described impeller bodies is manufactured by plastic materials.
5. the impeller as described in one of claim l to 3, 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. the impeller as described in one of claim l to 3, is characterized in that, blade quantity is the scope of 3 to 19.
7. the impeller as described in one of claim l to 3, is characterized in that, described guard shield be shaped as substantially frustoconical.
8. the impeller as described in one of claim 2 to 3, is characterized in that, within described first minute, guard shield is fixed by binding agent and described second minute guard shield.
9. a fan, is characterized in that, described fan comprises the impeller as described in one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210318261.9A CN103671240A (en) | 2012-09-01 | 2012-09-01 | Impeller and fan with impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210318261.9A CN103671240A (en) | 2012-09-01 | 2012-09-01 | Impeller and fan with impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103671240A true CN103671240A (en) | 2014-03-26 |
Family
ID=50309773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210318261.9A Pending CN103671240A (en) | 2012-09-01 | 2012-09-01 | Impeller and fan with impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103671240A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593917A (en) * | 2017-01-16 | 2017-04-26 | 许彐琼 | Impeller and fan with same |
| CN107747562A (en) * | 2017-10-27 | 2018-03-02 | 珠海格力电器股份有限公司 | Blade assembly, mixed flow wind wheel and the device with mixed flow wind wheel of mixed flow wind wheel |
| CN108825550A (en) * | 2018-08-30 | 2018-11-16 | 湖南机油泵股份有限公司 | A kind of impeller and water pump of the fast quick-detach of energy |
-
2012
- 2012-09-01 CN CN201210318261.9A patent/CN103671240A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593917A (en) * | 2017-01-16 | 2017-04-26 | 许彐琼 | Impeller and fan with same |
| CN107747562A (en) * | 2017-10-27 | 2018-03-02 | 珠海格力电器股份有限公司 | Blade assembly, mixed flow wind wheel and the device with mixed flow wind wheel of mixed flow wind wheel |
| CN108825550A (en) * | 2018-08-30 | 2018-11-16 | 湖南机油泵股份有限公司 | A kind of impeller and water pump of the fast quick-detach of energy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |