CN107575407B - Bladeless fan and handpiece for a bladeless fan - Google Patents
Bladeless fan and handpiece for a bladeless fan Download PDFInfo
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- CN107575407B CN107575407B CN201710945182.3A CN201710945182A CN107575407B CN 107575407 B CN107575407 B CN 107575407B CN 201710945182 A CN201710945182 A CN 201710945182A CN 107575407 B CN107575407 B CN 107575407B
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- housing
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- bladeless fan
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- 238000009413 insulation Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000003466 welding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention discloses a bladeless fan and a machine head for the bladeless fan, the machine head comprises: an inner case including a first inner case and a second inner case horizontally spaced apart and extending upward, respectively; the middle shell is arranged on the outer side of the inner shell and comprises a first middle shell and a second middle shell, the first middle shell is matched with the first inner shell to define a first channel, the second middle shell is matched with the second inner shell to define a second channel, a first air inlet is formed in the lower portion of the first channel, and a second air inlet is formed in the lower portion of the second channel; the shell comprises a first shell body and a second shell body which are connected with each other, wherein the first shell body is covered on the outer side of the first middle shell body, and the second shell body is covered on the outer side of the second middle shell body. The machine head of the bladeless fan provided by the embodiment of the invention has the advantages of higher strength, higher stability, lower working noise and better air outlet performance.
Description
Technical Field
The invention relates to the technical field of fans, in particular to a machine head for a bladeless fan and the bladeless fan with the machine head.
Background
In the related art, the bladeless fan has low strength, is easy to damage, and is easy to generate turbulence in the interior, unstable in air outlet and high in noise.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the machine head for the bladeless fan, which is higher in strength, higher in stability and higher in air outlet performance.
A handpiece for a bladeless fan according to an embodiment of the present invention includes: an inner housing including first and second inner housings horizontally spaced apart and extending upwardly, respectively; the middle shell is arranged on the outer side of the inner shell and comprises a first middle shell and a second middle shell, the first middle shell is matched with the first inner shell to define a first channel, the second middle shell is matched with the second inner shell to define a second channel, the lower part of the first channel is provided with a first air inlet, and the lower part of the second channel is provided with a second air inlet; and a housing including a first housing body and a second housing body connected to each other, the first housing body being provided outside the first middle housing body, and the second housing body being provided outside the second middle housing body.
The machine head of the bladeless fan provided by the embodiment of the invention has the advantages of higher strength, higher stability, lower working noise and better air outlet performance.
In addition, the handpiece for a bladeless fan according to the above embodiment of the present invention may have the following additional technical features:
according to some embodiments of the invention, the upper end of the first outer housing is connected to the upper end of the second outer housing.
Optionally, the inner shell further includes an upper inner shell, the middle shell further includes an upper middle shell, the upper inner shell and the upper middle shell cooperate to define a third channel, and the third channel is isolated from at least one of the first channel and the second channel.
Further, the third channel extends into an arc shape with an upward protruding middle part, and the first channel and the second channel extend along the vertical direction respectively.
Still further, the first inner housing, the second inner housing, and the upper inner housing are integrally formed, and the first middle housing, the second middle housing, and the upper middle housing are integrally formed.
According to some embodiments of the invention, the width of the cross section of the first channel and the width of the cross section of the second channel decrease from the middle to the two ends, respectively.
Optionally, a sound insulation cavity is formed between the outer shell and the middle shell, and the sound insulation cavity is hollow or filled with a sound insulation piece; or the outer shell is attached to the outer side of the middle shell.
Optionally, the inner shell is welded, bonded or integrally formed with the middle shell, and the outer shell is welded, bonded or integrally formed with the middle shell.
In some embodiments of the present invention, the first air outlet of the first channel and the second air outlet of the second channel are both disposed at a side where the middle shell and the inner shell are connected.
Further, the outer shell is welded with the middle shell, and the welding part is positioned at the outer side of the first air outlet or the second air outlet.
According to some embodiments of the invention, the inner side surface of the outer shell is provided with a groove, and the outer surface of the middle shell is provided with a lug matched with the groove.
Further, two ribs are arranged on the inner side surface of the shell at intervals along the width direction of the shell, the groove is formed between the two ribs, and the ribs extend along the length direction of the shell.
According to an embodiment of the invention, a bladeless fan includes: a base; according to the machine head provided by the embodiment of the invention, the machine head is arranged on the base, and the air cavity communicated with the first air inlet and the second air inlet is formed in the base.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural view of a handpiece in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of the assembly of the inner and outer shells of a handpiece in accordance with an embodiment of the present invention;
FIG. 3 is a schematic structural view of the housing of the handpiece in accordance with an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a handpiece in accordance with an embodiment of the present invention;
FIG. 5 is a schematic view of the internal structure of a handpiece in accordance with an embodiment of the present invention;
fig. 6 is a schematic structural view of a bladeless fan according to an embodiment of the present invention.
Reference numerals:
handpiece 100; a base 200; bladeless fan 300;
an inner case 10; a first inner housing 11; a second inner housing 12; an upper inner housing 13;
a middle shell 20; a first middle case 21; a second middle case 22; an upper and middle case 23; a bump 201;
a housing 30; a first outer case 31; a second outer housing 32; a groove 301; a rib 302;
a first channel 110; a first air inlet 111; a first air outlet 112;
a second channel 120; a second air inlet 121; a second air outlet 122;
a third channel 130; sound-proof chamber 140.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are exemplary for the purpose of illustrating the present invention and are not to be construed as limiting the present invention, and various changes, modifications, substitutions and alterations may be made therein by one of ordinary skill in the art without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly.
In the following, a handpiece 100 according to an embodiment of the present invention is described in detail with reference to the accompanying drawings, and the handpiece 100 can be used for the bladeless fan 300 shown in fig. 6, and can also be used for other configurations of bladeless fans.
Referring to fig. 1 to 5, a handpiece 100 according to an embodiment of the present invention includes: an inner shell 10, a middle shell 20 and an outer shell 30.
Specifically, the inner case 10 includes a first inner case 11 and a second inner case 12, and the first inner case 11 and the second inner case 12 are horizontally spaced apart, for example, as shown in fig. 4, the first inner case 11 and the second inner case 12 may be disposed spaced apart in the left-right direction. The first and second inner housings 11 and 12 extend upward, respectively. Here, the upward extension may be upward extension in the vertical direction, may extend upward obliquely to the vertical direction, may extend in an arc shape, may extend in a straight line shape, or may be a combination of a straight line shape and an arc shape.
The middle casing 20 may be disposed at an outer side of the inner casing 10, and herein, the outer side of the inner casing 10 may be understood as a side of the first inner casing 11 and the second inner casing 12 away from or facing away from each other, i.e., the outer side of the inner casing 10 includes a side of the first inner casing 11 facing away from the second inner casing 12 and a side of the second inner casing 12 facing away from the first inner casing 11. For example, as shown in fig. 4 and 5, the first inner housing 11 and the second inner housing 12 are disposed left and right, and both the left side of the first inner housing 11 and the right side of the second inner housing 12 are outside of the inner housing 10.
Further, the middle case 20 may include a first middle case 21 and a second middle case 22, and the first middle case 21 and the second middle case 22 may be respectively in one-to-one correspondence with the first inner case 11 and the second inner case 12, and the first middle case 21 may be disposed at an outer side of the first inner case 11 and the second middle case 22 may be disposed at an outer side of the second inner case 12. The first middle housing 21 and the first inner housing 11 may cooperate to define a first channel 110, the second middle housing 22 and the second inner housing 12 may cooperate to define a second channel 120, a lower portion of the first channel 110 has a first air inlet 111, and a lower portion of the second channel 120 has a second air inlet 121.
It will be appreciated that, as shown in fig. 2, the first channel 110 further has a first air outlet 112, and the second channel 120 further has a second air outlet 122, so as to realize air outlet. Alternatively, the first air outlet 112 and the second air outlet 122 may be respectively formed into a long strip shape, so that the air outlet effect is better. The arrangement positions of the first air outlet 112 and the second air outlet 122 are not particularly limited, and may be disposed at the upper portion and/or the middle portion of the first duct 110.
As shown in fig. 6, when the handpiece 100 is disposed on the base 200 of the bladeless fan 300, wind in the base 200 may enter the first passage 110 from the first air inlet 111 and blow out from the air outlet of the first passage 110, and at the same time, wind may also enter the second passage 120 from the second air inlet 121 and blow out from the second air outlet 122 of the second passage 120.
Wherein, in the embodiment of the present invention, since the first and second inner housings 11 and 12 are horizontally spaced apart such that the formed first and second passages 110 and 120 may be disposed at a spaced apart, the upper portions of the first and second passages 110 and 120 are not directly communicated, and do not form a ring shape or an inverted U shape, as shown in fig. 5. Therefore, when wind flows upwards from the first channel 110 and the second channel 120 at the same time, the wind in the two channels cannot be hedging, the wind in the two channels has better fluidity, turbulence is not easy to occur, the wind outlet is more stable, and the wind outlet noise is smaller.
As shown in fig. 3, the housing 30 includes a first housing body 31 and a second housing body 32, the first housing body 31 being provided outside the first middle housing body 21, and the second housing body 32 being provided outside the second middle housing body 22. With reference to the foregoing understanding of the outer side, the outer side of the first middle casing 21 may be understood herein as the side of the first middle casing 21 facing away from the first inner casing 11, and the outer side of the second middle casing 22 may be understood as the side of the second middle casing 22 facing away from the second inner casing 12. For example, as shown in fig. 4 and 5, the first outer case 31 is provided on the left side of the first middle case 21, and the second outer case 32 is provided on the right side of the second middle case 22.
The first outer housing 31 and the second outer housing 32 are coupled to each other such that two spaced apart portions of the inner housing 10 and the middle housing 20 can be coupled by the outer housing 30, and the handpiece 100 can be formed as a single body coupled together with improved strength and improved stability. Meanwhile, the outer shell 30 can also play a role in protecting the inner shell 10 and the middle shell 20, so that deformation of the inner shell 10 and the middle shell 20 caused by external force is avoided, fluid flow in an air duct is influenced, turbulence and noise are generated, sound insulation and noise reduction can be achieved from the outer side, and the performance of the machine head 100 is further improved.
According to the handpiece 100 of the bladeless fan 300 of the embodiment of the invention, by arranging the first inner casing 11 and the second inner casing 12 which are spaced, and arranging the middle casing 20 and the outer casing 30 in sequence on the outer side, not only can the strength and the stability of the handpiece 100 be improved, but also the working noise can be reduced, and meanwhile, the flowing effect of wind and the air outlet performance can be improved.
Referring to fig. 1 to 5, the upper end of the first casing body 31 is connected to the upper end of the second casing body 32. Thus, not only the influence of the housing 30 on the air outlet of the handpiece 100 can be avoided, but also the appearance of the handpiece 100 is more attractive. Alternatively, the first casing body 31 and the second casing body 32 may be smoothly connected, for example, the casing 30 may be formed in a U-shape with a downward opening. Thereby, the outer shape of the handpiece 100 can be made more beautiful.
Alternatively, in some embodiments according to the present invention, the inner case 10 further includes an upper inner case 13, and the middle case 20 further includes an upper middle case 23, and as shown with reference to fig. 1 to 5, the upper inner case 13 and the upper middle case 23 may cooperate to define a third passage 130. As shown in fig. 5, the third channel 130 is blocked from both the first channel 110 and the second channel 120. Therefore, the conduction between the second channel 120 and the first channel 110 can be avoided, and the third channel 130 can be used as a mounting space for some parts such as a loudspeaker, so that the appearance of the handpiece 100 is more attractive and tidy, and the performance is further improved. As shown in fig. 1 to 5, the outer case 30 may cover the upper and middle cases 23 from the outside, providing protection for the upper and middle cases 23.
In addition, in some embodiments of the present invention, the third channel 130 may also be in communication with one of the first channel 110 and the second channel 120 and be isolated therefrom, so that the isolation of the second channel 120 and the second channel 120 may also be achieved, and may also function to extend the length of the first channel 110 or the second channel 120.
Referring to fig. 1 to 5, the third passage 130 may extend in an arc shape with a central portion protruding upward, and the first and second passages 110 and 120 extend in a vertical direction, respectively. Thus, the first channel 110, the second channel 120 and the third channel 130 may be formed in a U shape with a downward opening, the air flow is better, and the shape of the handpiece 100 may be made in a U shape, which is more beautiful.
In some embodiments of the present invention, the first inner housing 11, the second inner housing 12, and the upper inner housing 13 may be integrally formed, and the first middle housing 21, the second middle housing 22, and the upper middle housing 23 may be integrally formed. That is, the inner case 10 may be formed as one piece, and the middle case 20 may be formed as one piece. Therefore, the sealing structure is convenient to manufacture, the joints of the channels are few, the sealing performance is good, and air leakage is not easy to occur.
Referring to fig. 1 to 4, the first air outlet 112 and the second air outlet 122 may be formed at the junctions of the inner case 10 and the middle case 20, respectively. Therefore, the air outlet directivity is good, an opening is not required to be specially arranged, the connecting structure of the inner shell 10 and the middle shell 20 can be more skillfully utilized, and the structural design is more reasonable.
Alternatively, the outer case 30 is welded with the middle case 20, and the welding site may be located outside the first air outlet 112 or the second air outlet 122. Specifically, the first outer case 31 and the first middle case 21 may be welded and the welded portion may be located outside the first air outlet 112, whereby deformation of the first air outlet 112 may be avoided; the second outer case 32 and the second middle case 22 may be welded and the welded portion may be located outside the second air outlet 122, whereby deformation of the second air outlet 122 may be avoided. Referring to fig. 5, a sound insulation chamber 140 may be formed between the outer case 22 and the inner case 21, and noise may be further reduced by providing the sound insulation chamber 140, wherein the sound insulation chamber 140 may be a cavity, and the noise reducing effect may be further improved by a structure (the sound insulation chamber 140, the outer case 30) having different sound insulation effects, since a transmission speed of sound or the like may be reduced when sound passes through the sound insulation chamber having an empty inside.
In addition, a soundproof member (not shown), such as a sponge, may be provided in the soundproof chamber 140, thereby further improving the noise reduction effect. Of course, the outer case 30 may be attached to the outer side surface of the middle case 20, and the noise reduction effect may be achieved as well.
According to some embodiments of the present invention, as shown in fig. 4, the inner side surface of the outer case 30 may be formed with a groove 301, and the outer surface of the middle case 20 may be provided with a protrusion 201 to be engaged with the groove 301. Thus, the matching of the groove 301 and the projection 201 can play a role in positioning the outer shell 30 and the middle shell 20, and the reliability and accuracy of assembly are improved.
Further, as shown in fig. 4, two ribs 302 may be provided on the inner side surface of the housing 30 at intervals in the width direction of the housing 30, and a groove 301 is formed between the two ribs 302, the ribs 302 extending in the length direction of the housing 30. Thus, not only the positioning effect can be enhanced, but also the strength of the housing 30 can be enhanced.
The present invention is not particularly limited to the shape of the cross section of the first and second passages 110 and 120, and alternatively, as shown in fig. 4, the width of the cross section of the first passage 110 may decrease from the middle to the both ends, and the width of the cross section of the second passage 120 may decrease from the middle to the both ends. Therefore, wind can flow more intensively to the middle part, flow more rapidly and smoothly, and the stability of the wind outlet is further improved.
The connection mode of the inner case 10, the middle case 20 and the outer case 30 is not particularly limited, and alternatively, the inner case 10 and the middle case 20 may be welded, bonded or integrally formed, and the outer case 30 and the middle case 20 may be welded, bonded or integrally formed, so that the connection is reliable and the operation is convenient. For example, in some specific examples of the present invention, the inner shell 10 is ultrasonically welded to the middle shell 20, the middle shell 20 is ultrasonically welded to the outer shell 30, the welding effect is good, and the handpiece 100 is attractive in appearance and high in reliability.
As shown in fig. 6, the present invention also proposes a bladeless fan 300, and the bladeless fan 300 may include a base 200 and a handpiece 100 according to an embodiment of the present invention, the handpiece 100 may be mounted on the base 200, an air chamber may be formed in the base 200, and the air chamber may be in communication with the first air inlet 111 and the second air inlet 121, so that air in the base 200 may enter into the first channel 110 and the second channel 120.
Optionally, a tee joint may be disposed in the base 200, the first air inlet 111 and the second air inlet 121 may be respectively in one-to-one correspondence with two ports of the tee joint, and wind in the base 200 may enter from another port thereof, flow to two channels after being split, and the wind mobility is better. Other structures of the base 200 will be understood and readily implemented by those skilled in the art and will not be described in detail herein.
Since the bladeless fan 300 according to the embodiment of the invention has the above beneficial technical effects, the bladeless fan 300 according to the embodiment of the invention has better stability, less noise and good air-out performance.
Other configurations and operations of bladeless fan 300 according to embodiments of the present invention will be apparent to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description herein, reference to the term "embodiment," "example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples without interference or conflict.
Claims (11)
1. A handpiece for a bladeless fan, comprising:
an inner housing including first and second inner housings horizontally spaced apart and extending upwardly, respectively;
the middle shell is arranged on the outer side of the inner shell and comprises a first middle shell and a second middle shell, the first middle shell is matched with the first inner shell to define a first channel, the second middle shell is matched with the second inner shell to define a second channel, the lower part of the first channel is provided with a first air inlet, and the lower part of the second channel is provided with a second air inlet;
a housing including a first housing body and a second housing body connected to each other, the first housing body being covered on an outer side of the first middle housing body, the second housing body being covered on an outer side of the second middle housing body;
the width of the cross section of the first channel and the width of the cross section of the second channel respectively decrease from the middle part to the two ends;
the first air outlet of the first channel and the second air outlet of the second channel are both arranged on one side of the middle shell, which is connected with the inner shell.
2. The handpiece for a bladeless fan of claim 1, wherein the upper end of the first housing body is connected to the upper end of the second housing body.
3. The handpiece for a bladeless fan of claim 1 or 2, wherein the inner housing further comprises an upper inner housing, the middle housing further comprising an upper middle housing, the upper inner housing and the upper middle housing cooperatively defining a third passage, the third passage being blocked from at least one of the first passage and the second passage.
4. A handpiece for a bladeless fan according to claim 3, wherein the third passage extends in a centrally upwardly projecting arc, and the first and second passages each extend in a vertical direction.
5. A handpiece for a bladeless fan according to claim 3, wherein the first inner housing, the second inner housing and the upper inner housing are integrally formed, and the first middle housing, the second middle housing and the upper middle housing are integrally formed.
6. The handpiece for a bladeless fan of claim 1, wherein a sound-dampening cavity is formed between the outer housing and the middle housing, the sound-dampening cavity being empty or filled with a sound-dampening member; or (b)
The outer shell is attached to the outer side of the middle shell.
7. The handpiece for a bladeless fan of claim 1, wherein the inner housing is welded or bonded to the middle housing and the outer housing is welded or bonded to the middle housing.
8. The handpiece for a bladeless fan of claim 7, wherein the outer shell is welded to the middle shell with the weld located outside of the first air outlet or the second air outlet.
9. The handpiece for a bladeless fan of claim 1, wherein the inner side surface of the outer housing is formed with a groove, and the outer surface of the middle housing is provided with a protrusion that mates with the groove.
10. The handpiece for a bladeless fan of claim 9, wherein said housing has two ribs spaced apart along a width of said housing on an inner side thereof, said grooves being formed between said ribs, said ribs extending along a length of said housing.
11. A bladeless fan, comprising:
a base;
the handpiece of any of claims 1-10, mounted on the base, having an air cavity formed therein in communication with both the first air inlet and the second air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710945182.3A CN107575407B (en) | 2017-09-30 | 2017-09-30 | Bladeless fan and handpiece for a bladeless fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710945182.3A CN107575407B (en) | 2017-09-30 | 2017-09-30 | Bladeless fan and handpiece for a bladeless fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107575407A CN107575407A (en) | 2018-01-12 |
| CN107575407B true CN107575407B (en) | 2023-11-03 |
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ID=61036592
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710945182.3A Active CN107575407B (en) | 2017-09-30 | 2017-09-30 | Bladeless fan and handpiece for a bladeless fan |
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| Country | Link |
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| CN (1) | CN107575407B (en) |
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|---|---|---|---|---|
| GB0822612D0 (en) * | 2008-12-11 | 2009-01-21 | Dyson Technology Ltd | A fan |
| GB0903680D0 (en) * | 2009-03-04 | 2009-04-15 | Dyson Technology Ltd | A fan |
| GB0903679D0 (en) * | 2009-03-04 | 2009-04-15 | Dyson Technology Ltd | A fan |
| CN102661294A (en) * | 2012-04-10 | 2012-09-12 | 魏建峰 | Bladeless fan |
| CN103452876A (en) * | 2013-01-07 | 2013-12-18 | 胡晓存 | Bladeless fan |
| CN205654598U (en) * | 2016-04-29 | 2016-10-19 | 广东美的环境电器制造有限公司 | Fan without blade |
| CN106194856A (en) * | 2016-09-30 | 2016-12-07 | 广东美的环境电器制造有限公司 | The head of bladeless fan and the bladeless fan with it |
| CN106246602A (en) * | 2016-09-30 | 2016-12-21 | 广东美的环境电器制造有限公司 | Head and bladeless fan for bladeless fan |
| CN207526711U (en) * | 2017-09-30 | 2018-06-22 | 广东美的环境电器制造有限公司 | Bladeless fan and the head for bladeless fan |
-
2017
- 2017-09-30 CN CN201710945182.3A patent/CN107575407B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0822612D0 (en) * | 2008-12-11 | 2009-01-21 | Dyson Technology Ltd | A fan |
| GB0903680D0 (en) * | 2009-03-04 | 2009-04-15 | Dyson Technology Ltd | A fan |
| GB0903679D0 (en) * | 2009-03-04 | 2009-04-15 | Dyson Technology Ltd | A fan |
| CN102661294A (en) * | 2012-04-10 | 2012-09-12 | 魏建峰 | Bladeless fan |
| CN103452876A (en) * | 2013-01-07 | 2013-12-18 | 胡晓存 | Bladeless fan |
| CN205654598U (en) * | 2016-04-29 | 2016-10-19 | 广东美的环境电器制造有限公司 | Fan without blade |
| CN106194856A (en) * | 2016-09-30 | 2016-12-07 | 广东美的环境电器制造有限公司 | The head of bladeless fan and the bladeless fan with it |
| CN106246602A (en) * | 2016-09-30 | 2016-12-21 | 广东美的环境电器制造有限公司 | Head and bladeless fan for bladeless fan |
| CN207526711U (en) * | 2017-09-30 | 2018-06-22 | 广东美的环境电器制造有限公司 | Bladeless fan and the head for bladeless fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107575407A (en) | 2018-01-12 |
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