CN102251973A - Bladeless fan - Google Patents

Abstract

The invention relates to a bladeless fan comprising an air admission unit and an air exhaust structure connected with the air admission unit. The air exhaust structure comprises an air passage and an annular shell surrounding the air passage. The annular shell is provided with a first end face and a second end face opposite to the first end face. The inner wall of the annular shell is provided with an air outlet and an additive outlet which are communicated with the air passage, and the air outlet is close to the first end face. The bladeless fan disclosed by the invention has the advantage of more additional functions.

Description

The on-bladed fan

Technical field

The present invention relates to a kind of fan, especially relate to a kind of on-bladed fan.

Background technique

Fan usually can be used in daily life as household electric appliance.Traditional fan comprises drive unit and blade, and drive unit has rotatingshaft, and blade then is installed on the rotatingshaft and is driven rotation and made air flows by drive unit.

Yet, in traditional fan, inhomogeneous and be easy to generate noise by the air stream that rotor blade produced.

Occurred a kind of on-bladed fan in the recent period, it can improve the uniformity of air stream and reduce noise.The on-bladed fan generally comprises air inlet unit and air-out structure, is provided with coanda (Coanda) surface in the air-out structure.During use, air inlet unit suction ambient air, discharge from the gas outlet of air-out structure the boosted back of the ambient air that is drawn into.When air is surperficial by coanda,, the amount of moving air is amplified because Coanda effect (Coanda Effect) also can drive the gas outlet ambient air and flow.

Although compared to traditional fan, the on-bladed fan has more advantage, and existing on-bladed fan additional function is less, can not provide more convenience to the user.For example, use the on-bladed fan to make user's dry skin easily for a long time, produce uncomfortable in some arid regions.

Summary of the invention

In view of this, be necessary to provide a kind of on-bladed fan with more additional functions.

A kind of on-bladed fan, it comprises air inlet unit and the air-out structure that links to each other with the air inlet unit.The air-out structure comprises that gas channel reaches the toroidal shell around gas channel.Toroidal shell has first end face and and the first end face second opposed end face.Be formed with the gas outlet and the affix outlet that communicate with gas channel on the inwall of toroidal shell, gas outlet is near first end face.

In the above-mentioned on-bladed fan, owing to be provided with the affix outlet, affix is flowed out from the affix outlet, thereby increase the additional function of use of on-bladed fan, use with the aspect.

Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.

Description of drawings

Fig. 1 is the schematic perspective view of the on-bladed fan of one of embodiment of the invention.

Fig. 2 is the generalized section that on-bladed fan shown in Figure 1 is cut open along II.

Fig. 3 is the schematic perspective view of the on-bladed fan of another embodiment of the present invention.

100,200: on-bladed fan 10: the air inlet unit

20: air-out structure 22: gas channel

24,44: 242: the first end faces of toroidal shell

End face 246 in 244: the second: gas outlet

247: coanda surface 248,448: the affix outlet

50: affix storage tank 52: flow guiding unit

54: heating element 101: air

102: affix

Embodiment

Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of on-bladed fan, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.

See also Fig. 1, the on-bladedfan 100 of one of embodiment of the invention comprisesair inlet unit 10 and air-out structure 20.Air inlet unit 10 links to each other with air-out structure 20.Air-out structure 20 comprisesgas channel 22 and toroidal shell 24.Toroidal shell 24 is around gas channel 22.See also Fig. 2,toroidal shell 24 hasfirst end face 242,second end face 244,gas outlet 246 and affix outlet 248.Wherein,first end face 242 is relative withsecond end face 244, andgas outlet 246 andaffix outlet 248 is formed on the inwall oftoroidal shell 24 and withgas channel 22 and is connected.Gas outlet 246 is nearfirst end face 242.

Hold above-mentionedly,toroidal shell 24 is shaped as ring.Be appreciated that the difference according to design or user demand,toroidal shell 24 also can be designed to other outer shapes of ring.

Gas outlet 246 can be connected withair inlet unit 10, for example is to be communicated inair inlet unit 10 by the inner passage in the air-out structure 20 (figure is mark not).And,, on the sidewall ofgas outlet 246, coanda surface 247 can be set for reaching Coanda effect.Air inlet unit 10 is fromextraneous suction air 101, and Chou Xiair 101 can be discharged from fromgas outlet 246 afterwards.Because the sidewall ofgas outlet 246 is provided with coanda surface 247, therefore theair 101 of discharging fromgas outlet 246 can produce Coanda effect, drive/entrainment near theair 101 thegas outlet 246, make from the amplification ofgas channel 22 blow out air air-flows.Be appreciated that Coanda effect can produce on different surface, maybe can be used in combination the inside oftoroidal shell 24 or exterior design to obtain required air flows and to entrainment effect.

Affix outlet 248 is in order to flow out affix 102.Affix 102 can be materials such as water, essence or insecticide.Specifically in the present embodiment,second end face 244 ofaffix outlet 248 reliable near-ring shape housings 24, and towardssecond end face 244, thereby can make theaffix 102 that flows out be positioned at the periphery of the air stream that on-bladed fan 100 blows out, and then avoid affix directly to blow to the user front.Andaffix outlet 248 also can be connected in the shell wall oftoroidal shell 24 with gas outlet 246.Like this, theair 101 that part is entered byair inlet unit 10 suction can mix withaffix 102 mutually throughaffix outlet 248 when discharging, thereby can increase the mixing uniformity of the edge section ofaffix 102 and air stream.Be appreciated that in other embodiments of theinvention affix outlet 248 also can be arranged on the inwall oftoroidal shell 24 position near gas outlet 246.In addition, be used to carry the affix storage tank ofaffix 102, can be one-body molded or external withtoroidal shell 24.

During use,,affix 102 is flowed out fromaffix outlet 248, thereby increase the additional function of use of on-bladed fan 100 because on-bladed fan 100 is provided with affix outlet 248.Specifically, aqueous vapor is flowed out fromaffix outlet 248, thereby increase airborne humidity, avoid user's dry skin, produce uncomfortable; Perhaps, spices gas is flowed out fromaffix outlet 248, thus make contain in the air stream savory; Again or, the gas that can make pesticide flows out fromaffix outlet 248, thereby eliminates bacterium or other harmful animals in the air stream.In addition,, affix is scattered in the air stream, therefore also can saves other household appliances, for example the use of air humidifier etc. because on-bladedfan 100 is provided withaffix outlet 248.

See also Fig. 3, be depicted as the on-bladed fan 200 of another embodiment of the present invention.On-bladed fan 200 is similar to on-bladed fan 100, and its difference is: on-bladed fan 200 comprisesaffix storage tank 50 and flow guiding unit 52.Affixstorage tank 50 is removably installed in thetoroidal shell 44, andflow guiding unit 52 then is to be communicated betweenaffix storage tank 50 and the affix outlet 448.Wherein,affix storage tank 50 can store affixs such as water, essence or insecticide.Especially, in the present embodiment, be transformed into gas for ease of making affix, on-bladed fan 200 also can comprise heating element 54.Heating element 54 for example is connected with flow guiding unit 52.Be appreciated that in other embodiments of theinvention heating element 54 also can be connected withaffix storage tank 50; Perhapsomit heating element 54, comprise capillary pipe structure in theflow guiding unit 52, spread out again directlyaffix storage tank 50 is imported to affixoutlet 448 and make.

In addition, be appreciated that in other embodiments of the invention that the affix storage tank also can directly be connected with the inner passage of toroidal shell, gas outlet can be combined as a whole with the affix outlet, to save the setting of affix outlet; And other structures of on-bladed fan can be same or similar with corresponding structure in the foregoing description at this moment, repeats no more herein.

In sum, in the on-bladed fan of the embodiment of the invention, owing to be provided with the affix outlet, affix is flowed out from the affix outlet, thereby increase the additional function of use of on-bladed fan, use with the aspect.

The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.

Claims (10)

1. on-bladed fan, it comprises air inlet unit and the air-out structure that links to each other with this air inlet unit, this air-out structure comprises that gas channel reaches the toroidal shell around this gas channel, this toroidal shell has first end face and reaches and this first end face second opposed end face, be formed with the gas outlet that communicates with this gas channel on the inwall of this toroidal shell, this gas outlet is characterized in that near this first end face: also be formed with the affix outlet that communicates with this gas channel on the inwall of this toroidal shell.

2. on-bladed fan according to claim 1 is characterized in that: this affix outlet is near this second end face.

3. on-bladed fan according to claim 1 is characterized in that: this affix outlet is connected in the shell wall of this toroidal shell with this gas outlet.

4. on-bladed fan according to claim 1 is characterized in that: this on-bladed fan also comprises affix storage tank and flow guiding unit, and this flow guiding unit is communicated with this affix storage tank and the outlet of this affix.

5. on-bladed fan according to claim 4 is characterized in that: this on-bladed fan also comprises heating element, and this heating element links to each other with this affix storage tank or links to each other with this flow guiding unit.

6. on-bladed fan according to claim 4 is characterized in that: this flow guiding unit comprises capillary pipe structure.

7. on-bladed fan, it comprises air inlet unit and the air-out structure that links to each other with this air inlet unit, this air-out structure comprises that gas channel reaches the toroidal shell around this gas channel, be formed with the inner passage that communicates with this gas channel on the inwall of this toroidal shell, it is characterized in that: this on-bladed fan also comprises the affix storage tank, and this affix storage tank is connected with this inner passage.

8. on-bladed fan according to claim 7 is characterized in that: this on-bladed fan also comprises flow guiding unit, and this flow guiding unit is connected between this affix storage tank and this inner passage.

9. on-bladed fan according to claim 8 is characterized in that: this on-bladed fan also comprises heating element, and this heating element links to each other with this affix storage tank or links to each other with this flow guiding unit.

10. on-bladed fan according to claim 8 is characterized in that: this flow guiding unit comprises capillary pipe structure.

Images