CN202821197U - Axial flow guide impeller of vacuum cleaner - Google Patents
Axial flow guide impeller of vacuum cleaner Download PDFInfo
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- CN202821197U CN202821197U CN 201220323655 CN201220323655U CN202821197U CN 202821197 U CN202821197 U CN 202821197U CN 201220323655 CN201220323655 CN 201220323655 CN 201220323655 U CN201220323655 U CN 201220323655U CN 202821197 U CN202821197 U CN 202821197U
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- centrifugal wheel
- impeller
- outer cover
- air intake
- centrifugal
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Abstract
The utility model relates to an axial flow guide impeller of a vacuum cleaner. The impeller comprises an air inlet outer shell, a centrifugal wheel, a fixed impeller, and a motor rotating shaft. The air inlet outer shell, the centrifugal wheel and the fixed impeller are arranged concentric with the motor rotating shaft, the air inlet outer shell is matched with the fixed impeller to form a containing cavity, the centrifugal wheel is located in the containing cavity, and the motor rotating shaft is fixedly connected with the centrifugal wheel. The centrifugal wheel comprises a centrifugal vane, a centrifugal wheel cover and a centrifugal wheel base, wherein the edge of the centrifugal wheel cover is bent to form a flow guide wing. The guide flow wing is arranged on the centrifugal wheel cover, so the axial flow guide impeller enables high pressure air flow to be changed from original radial discharge to axial discharge along the flow guide wing, a whole air flow channel is clear, eddies are minimum and efficiency is maximum. Meanwhile, as the high pressure air flow does not impact on the air inlet outer shell, vibration and noise are reduced to the largest extent.
Description
Technical field
The utility model relates to a kind of building block of dust catcher, is specifically related to a kind of dust catcher axial diversion impeller, belongs to the household appliances technical field.
Background technology
Structure of dust collector requires the motor of dust collector assembly to suck air from a side of deciding impeller, discharges from the opposite side of deciding impeller, thereby produces the pressure minus tolerance in the suction side, reaches the purpose of dust suction; Because need the certain suction of maintenance, noise is greatly the maximum persistent ailment in the dust catcher industry, all thinking that various ways reduce the noise of dust catchers in the industry, wherein, the noise that improves motor sub-assembly is particularly crucial.
See also shown in the Figure of description 1, the exocentric structure of the dust catcher motor of prior art usually by air intake outer cover 1A, centrifugal wheel 2A, decide the assembling of several parts such as impeller 3A and machine shaft 4A and form.Described centrifugal wheel 2A is comprised of centrifuge blade 21A and centrifugal wheel seat 22A, and blade 21A carries out supercharging and constantly forces air-flow footpath outwards move air when High Rotation Speed, therefore forms high pressure draught and throws away in centrifugal wheel 2A outer radius; Owing to have end play between air intake outer cover 1A and the centrifugal wheel 2A, high pressure draught constantly overflows from the end play of air intake outer cover 1A and centrifugal wheel 2A, the air-flow that overflows forms eddy current and friction between air intake outer cover 1A and centrifugal wheel 2A, air intake outer cover 1A is produced to impact and form vibrate and noise; And the end play of air intake outer cover 1A and centrifugal wheel 2A is larger, and the air-flow that overflows is just more, and fewer at the gases at high pressure at centrifugal wheel 2A cylindrical place, pressure is also little, and just few from the air-flow of deciding the discharge of impeller exhaust outlet, suction also reduces thereupon, and pick-up performance is just poor.
In order to promote suction, Cost reduction, usually one of method of using is to promote motor rotary speed, the common cost of this method increases few, suction can be guaranteed, but the dust catcher motor noise is further risen, can produce larger noise pollution to the user, the product of therefore producing in this way only is suitable for the less demanding occasion of noise.
In order to promote suction, reach better pick-up performance, a kind of way in addition is the end play that as far as possible reduces between air intake outer cover 1A and the centrifugal wheel 2A, thereby reduces overflowing and leakage of high pressure draught; This way requires to improve dimensional accuracy and the assembly precision of part, particularly require to improve the perpendicularity of dust catcher impeller 2A, and dust catcher impeller 2A belongs to the very large circular piece of blade diameter length ratio, its assembling perpendicularity is very difficult to guarantee, therefore whole assembly cost and cost of parts all can significantly promote, make production efficiency in this way low, the product fraction defective is high, and cost obviously increases.
As a kind of improvement, the exocentric structure of the dust catcher shown in Figure of description 2 has appearred on the market, its still by air intake outer cover 1B, centrifugal wheel 2B, decide the assembling of several parts such as impeller 3B and machine shaft 4B and form.Its difference is: be comprised of centrifuge blade 21B, centrifugal wheel seat 22B and centrifugal wheel cap 23B in described centrifugal wheel 2B.Be provided with an opening in the middle of the described centrifugal wheel cap 23B, supercharging in centrifugal wheel 2B after air enters by this opening, whole pressurization and air intake outer cover 1B are irrelevant, therefore whole increase process does not have the leakage of overflowing of high pressure draught, reducing high pressure draught impacts the friction of air intake outer cover 1B, reduce noise, promoted efficient; Yet, because the high pressure draught that the gap between air intake outer cover 1B and the centrifugal wheel cap 23B and centrifugal wheel 2B throw away joins, therefore, between air intake outer cover 1B and centrifugal wheel 2B, still can produce certain backflow, and the end play of air intake outer cover 1B and centrifugal wheel 2B is larger, it is more to reflux, the just relatively minimizing of air-flow of discharging from deciding the impeller exhaust outlet, and suction will descend; Simultaneously, the high pressure draught from centrifugal wheel 2B throws away directly impacts on air intake outer cover 1B, still can produce larger vibration and noise.
Therefore, be further to reduce noise, control refluxes, and keeps suction, necessaryly provides a kind of structure improved dust catcher axial diversion impeller that has, to overcome described defective of the prior art.
The utility model content
For addressing the above problem, the purpose of this utility model is to provide a kind of dust catcher axial diversion impeller, thereby air-flow is less to the impact of motor sub-assembly in the course of the work to make dust catcher, reflux and be not subjected to the impact of air intake outer cover and impeller end play, air-flow more smoothly, eddy current is still less, and is more stable to reach suction, high efficiency more, and effectively reduce noise.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of dust catcher axial diversion impeller, and it comprises air intake outer cover, centrifugal wheel, decides impeller and motor shaft; Wherein, described air intake outer cover, centrifugal wheel, decide impeller and all arrange with motor shaft is concentric; Described air intake outer cover and decide impeller and match and form a host cavity, described centrifugal wheel is positioned at this host cavity; Described motor shaft and centrifugal wheel phase fixing; Described centrifugal wheel comprises centrifuge blade, centrifugal wheel cap and centrifugal wheel seat; Have a centrifugal wheel cap air inlet in the middle of the described centrifugal wheel cap, the edge of described centrifugal wheel cap is bent to form one and is used for high pressure draught by radially discharging the flap that becomes axial discharge.
Dust catcher axial diversion impeller of the present utility model further is set to: decide impeller and be provided with some exhaust outlets in described; Central authorities in described air intake outer cover are provided with an air intake outer cover air inlet.
Dust catcher axial diversion impeller of the present utility model further is set to: the diameter of described centrifugal wheel cap makes between flap and the centrifugal wheel seat to have the space greater than the diameter of centrifugal wheel seat, and this space and exhaust outlet are oppositely arranged.
Dust catcher axial diversion impeller of the present utility model further is set to: described centrifuge blade is contained fully by centrifugal wheel seat and centrifugal wheel cap, the air-flow supercharging is finished in centrifugal wheel, and air-flow changes axial discharge into from radially discharging behind the flap water conservancy diversion in centrifugal wheel.
Compared with prior art, the utlity model has following beneficial effect: dust catcher impeller inducer of the present utility model arranges flap by covering at centrifugal wheel, thereby make high pressure draught behind water conservancy diversion, become axial discharge by radially discharging, high pressure draught can not produce radial impact to the air intake outer cover, whole gas channel is smooth, eddy current is minimum, and noise is minimum, and is most effective; Simultaneously, by this centrifugal wheel cap is set, radial clearance between air intake outer cover and the centrifugal wheel is controlled in the rational scope, can strictly control the backflow of generation, after improving like this, the end play size of air intake outer cover and centrifugal wheel can not affect backflow, thereby requires no longer harsh to element precision and the assembly precision of product; After this design, but improving production efficiency reduces product cost, and improving product efficient guarantees product suction, reduces the product noise.
Description of drawings
Fig. 1 is the structural representation of the dust catcher exocentric structure of prior art.
Fig. 2 is the structural representation of the dust catcher exocentric structure of another prior art.
Fig. 3 is the structural representation of dust catcher axial diversion impeller of the present utility model.
The specific embodiment
See also shown in the Figure of description 3, the utility model is a kind of dust catcher axial diversion impeller, its by air intake outer cover 1, centrifugal wheel 2, decide the assembling of several parts such as impeller 3 and motor shaft 4 and form; Described air intake outer cover 1, centrifugal wheel 2, decide impeller 3 all with motor shaft 4 concentric settings.
Wherein, described air intake outer cover 1 and decide impeller 3 and match and form a host cavity 5, described centrifugal wheel 2 is positioned at this host cavity 5.Central authorities in described air intake outer cover 1 are provided with an air intake outer cover air inlet 11.Decide impeller 3 and be provided with some exhaust outlets 31 in described.
Described motor shaft 4 and centrifugal wheel 2 phase fixings transmit motor power by this motor shaft 4 and make centrifugal wheel 2 high speed rotating.
Described centrifugal wheel 2 comprises centrifuge blade 21, centrifugal wheel cap 22 and centrifugal wheel seat 23.Have a centrifugal wheel cap air inlet (not label) in the middle of the described centrifugal wheel cap 22, its edge is bent to form a flap 24, the high pressure draught that this flap 24 will radially produce makes high pressure draught become axial discharge by radially discharging along the smooth-going derivation of flap 24 madial walls from face.The diameter of described centrifugal wheel cap 22 is greater than the diameter of centrifugal wheel seat 23, make between flap 24 and the centrifugal wheel seat 23 and have space 25, this space 25 and exhaust outlet 31 are oppositely arranged, thereby make the high pressure draught of axial discharge just corresponding with the exhaust outlet 31 of deciding impeller 3, make whole air-flow more smooth and easy, reduce impact and eddy current, reduced noise, promoted usefulness.
The design principle of dust catcher axial diversion impeller of the present utility model is as follows: when motor shaft 4 drives centrifugal wheel 2 high speed rotating, air enters centrifugal wheel 2 and form high pressure draught after the centrifugal supercharging in centrifugal wheel 2 places by air intake outer cover air inlet 11, centrifugal wheel cap air inlet successively, makes air inlet 11 generation negative pressure and has pick-up performance.High pressure draught is radially thrown away by centrifuge blade 21, and because the guiding of flap 24 is converted to the axial-rotation air-flow with the radial air flow pressure, thereby high pressure draught is not produced air intake outer cover 1 to be impacted, thus reduced noise.Simultaneously, high pressure draught is directly discharged by space 25 and exhaust outlet 31, and backflow reduces, thereby has promoted the usefulness of dust suction.
Dust catcher impeller inducer of the present utility model is by arranging flap 24 at centrifugal wheel cap 22, thereby make high pressure draught behind water conservancy diversion, become axial discharge by radially discharging, high pressure draught can not produce radial impact to air intake outer cover 1, whole gas channel is smooth, eddy current is minimum, noise is minimum, and is most effective; Simultaneously, by this centrifugal wheel cap 22 is set, radial clearance between air intake outer cover 1 and the centrifugal wheel 2 is controlled in the rational scope, can strictly control the backflow of generation, after improving like this, the end play size of air intake outer cover 1 and centrifugal wheel 2 can not affect backflow, thereby requires no longer harsh to element precision and the assembly precision of product; After this design, but improving production efficiency reduces product cost, and improving product efficient guarantees product suction, reduces the product noise.
The above specific embodiment only is the preferred embodiment of this creation, not in order to limiting this creation, all in this creation spirit and principle within make any modification, be equal to replacement, improvement etc., all should be included within the protection domain of this creation.
Claims (4)
1. a dust catcher axial diversion impeller is characterized in that: comprise air intake outer cover, centrifugal wheel, decide impeller and motor shaft; Wherein, described air intake outer cover, centrifugal wheel, decide impeller and all arrange with motor shaft is concentric; Described air intake outer cover and decide impeller and match and form a host cavity, described centrifugal wheel is positioned at this host cavity; Described motor shaft and centrifugal wheel phase fixing; Described centrifugal wheel comprises centrifuge blade, centrifugal wheel cap and centrifugal wheel seat; Have a centrifugal wheel cap air inlet in the middle of the described centrifugal wheel cap, the edge of described centrifugal wheel cap is bent to form one and is used for high pressure draught by radially discharging the flap that becomes axial discharge.
2. dust catcher axial diversion impeller as claimed in claim 1 is characterized in that: decide impeller and be provided with some exhaust outlets in described; Central authorities in described air intake outer cover are provided with an air intake outer cover air inlet.
3. dust catcher axial diversion impeller as claimed in claim 2, it is characterized in that: the diameter of described centrifugal wheel cap makes between flap and the centrifugal wheel seat to have the space greater than the diameter of centrifugal wheel seat, and this space and exhaust outlet are oppositely arranged.
4. dust catcher axial diversion impeller as claimed in claim 3, it is characterized in that: described centrifuge blade is contained fully by centrifugal wheel seat and centrifugal wheel cap, the air-flow supercharging is finished in centrifugal wheel, and air-flow changes axial discharge into from radially discharging behind the flap water conservancy diversion in centrifugal wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220323655 CN202821197U (en) | 2012-07-06 | 2012-07-06 | Axial flow guide impeller of vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220323655 CN202821197U (en) | 2012-07-06 | 2012-07-06 | Axial flow guide impeller of vacuum cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202821197U true CN202821197U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220323655 Expired - Fee Related CN202821197U (en) | 2012-07-06 | 2012-07-06 | Axial flow guide impeller of vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202821197U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105919494A (en) * | 2016-06-29 | 2016-09-07 | 广东美的环境电器制造有限公司 | Hand drying machine |
| CN109763997A (en) * | 2018-12-30 | 2019-05-17 | 上海朴渡信息科技有限公司 | A kind of wheelboss part of blower of cleaner |
| CN113074127A (en) * | 2020-01-06 | 2021-07-06 | 广东威灵电机制造有限公司 | Air supply device and dust collector |
-
2012
- 2012-07-06 CN CN 201220323655 patent/CN202821197U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105919494A (en) * | 2016-06-29 | 2016-09-07 | 广东美的环境电器制造有限公司 | Hand drying machine |
| CN109763997A (en) * | 2018-12-30 | 2019-05-17 | 上海朴渡信息科技有限公司 | A kind of wheelboss part of blower of cleaner |
| CN113074127A (en) * | 2020-01-06 | 2021-07-06 | 广东威灵电机制造有限公司 | Air supply device and dust collector |
| CN113074127B (en) * | 2020-01-06 | 2023-02-03 | 广东威灵电机制造有限公司 | Air supply device and dust collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20150706 |
|
| EXPY | Termination of patent right or utility model |