CN212672121U - Bladeless fan - Google Patents
Bladeless fan Download PDFInfo
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- CN212672121U CN212672121U CN202020519577.4U CN202020519577U CN212672121U CN 212672121 U CN212672121 U CN 212672121U CN 202020519577 U CN202020519577 U CN 202020519577U CN 212672121 U CN212672121 U CN 212672121U
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- air duct
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- bladeless fan
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Abstract
The utility model provides a bladeless fan. The bladeless fan comprises a shell, a rear cover and a fan, wherein the shell comprises a main body part and a peripheral part which is connected with and annularly arranged outside the main body part, the main body part and the peripheral part form an accommodating cavity for accommodating the fan and an air duct air inlet communicated with the accommodating cavity, the rear cover is arranged on one side of the fan far away from the main body part and is connected with the peripheral part, the peripheral part is provided with an air duct communicated with the air inlet of the air duct and an air outlet communicated with the air duct, the air outlet is positioned at one side of the peripheral part far away from the rear cover, the air duct and the air outlet are both annular and are arranged on the periphery of the fan in a surrounding way, the rear cover is also provided with an air inlet hole communicated with the containing cavity, the fan is used for guiding the air of the air inlet hole of the rear cover to be blown out from the air outlet through the accommodating cavity, the air inlet of the air duct and the air duct.
Description
Technical Field
The utility model relates to a fan technical field especially relates to a bladeless fan.
Background
The traditional fan has the advantages that the motor drives the blades to rotate, so that airflow is generated, and the effects of cooling, relieving summer heat and circulating air are achieved. Thus, bladeless fans have emerged as market demands.
The existing bladeless fan adopts a high-speed motor to drive the blades to rotate in the product, high-speed airflow is generated at the air outlet, and meanwhile, air multiplication flow is formed at the air outlet by utilizing the coanda effect.
Therefore, there is a need to provide a bladeless fan to solve the above-mentioned technical problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, an embodiment of the present invention provides a bladeless fan, which includes: the shell, the rear cover and the fan;
the shell comprises a main body part and a peripheral part connected with and annularly arranged outside the main body part, the main body part and the peripheral part form an accommodating cavity for accommodating the fan and an air duct air inlet communicated with the accommodating cavity,
the rear cover is arranged on one side of the fan far away from the main body part and is connected with the peripheral part,
the peripheral part is provided with an air duct communicated with the air inlet of the air duct and an air outlet communicated with the air duct, the air outlet is positioned at one side of the peripheral part far away from the rear cover, the air duct and the air outlet are both annular and annularly arranged at the periphery of the fan, the rear cover is also provided with an air inlet communicated with the containing cavity,
the fan is used for guiding the air of the air inlet hole of the rear cover to be blown out from the air outlet through the accommodating cavity, the air inlet of the air duct and the air duct.
According to the utility model discloses an embodiment, the quantity of fan is two, two fans all are located same accept in the chamber.
According to the utility model discloses an embodiment, two fans are centrifugal fan.
According to the utility model discloses an embodiment, the quantity of wind channel air inlet is two, just two wind channel air inlets are located respectively the relative both sides in annular duct, two fans correspond respectively two wind channel air inlets set up in order to incite somebody to action the gas guide of the fresh air inlet of back lid extremely the wind channel.
According to the utility model discloses an embodiment, the cross-sectional width in wind channel is along keeping away from the direction of air outlet reduces gradually and increases gradually again, just the cross-sectional width of air outlet is less than or equal to the cross-sectional width in wind channel.
According to the utility model discloses an embodiment, control element set up in the fan is kept away from back lid one side, and is located the central point of annular duct puts.
According to an embodiment of the utility model, the back lid has a plurality of fresh air inlets of honeycomb arrangement.
According to an embodiment of the present invention, the rear cover and the peripheral portion are further provided with a damping noise reduction element therebetween.
According to an embodiment of the present invention, the bladeless fan further comprises a bracket, the bracket is connected to the peripheral portion, and the bracket and the housing are integrally formed into a structure.
According to the utility model discloses an embodiment, the support include the supporting part, connect in the first connecting portion of supporting part one end and connect in the second connecting portion of the supporting part other end, the other end of first connecting portion is connected peripheral portion, the other end of second connecting portion is connected peripheral portion, peripheral portion with the support encloses into the opening.
Compared with the prior art, the utility model discloses a bladeless fan passes through the shell the main part with peripheral portion encloses into acceping the fan accept the chamber and with accept the wind channel air inlet of chamber intercommunication, the fan be used for the guide will the air inlet of back lid's air inlet via accept the chamber the wind channel air inlet the wind channel is followed the air outlet blows off, the fan with the close setting in wind channel has reduced the loss of air current in transmission process, has promoted fan efficiency.
Furthermore, an air duct communicated with the air inlet of the air duct and an air outlet communicated with the air duct are formed in the peripheral portion, and the air duct and the shell are of an integrated structure, so that the stability of the bladeless fan is enhanced, and the vibration loss is reduced.
Further, the number of the fans is two, and the two fans are located in the same accommodating cavity, so that the air quantity of the bladeless fan is increased.
Furthermore, the control element is positioned at the center of the annular air duct, so that the bladeless fan is more compact in structure and reduced in size while the convenience of use of the bladeless fan is improved.
Further, the rear cover has a plurality of air inlet holes arranged in a honeycomb shape to reduce noise generated from the fan.
Furthermore, a damping noise reduction element is arranged between the rear cover and the peripheral part to convert vibration energy into heat energy, reduce vibration and reduce noise.
Further, the bracket and the shell are of an integrally formed structure, and the opening formed by the surrounding part and the bracket is used for increasing the stability of the bladeless fan and further reducing the volume of the fan.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic perspective view of a bladeless fan according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of the bladeless fan shown in fig. 1 at another angle.
Fig. 3 is a schematic cross-sectional view taken along line a-a of fig. 1.
Fig. 4 is a schematic cross-sectional view taken along line B-B of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The terms "first," "second," and "third," etc. in the description and claims of the present invention and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "comprises" and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, fig. 1 is a schematic perspective view of a bladeless fan 100 according to an embodiment of the present invention; FIG. 2 is a schematic perspective view of the bladeless fan 100 shown in FIG. 1 at another angle; FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1; fig. 4 is a schematic cross-sectional view taken along line B-B of fig. 1. The bladeless fan 100 includes a housing 10, a rear cover 20, and a blower 30.
The housing 10 includes a main body portion 11 and a peripheral portion 12 connected to and surrounding the main body portion 11, the main body portion 11 and the peripheral portion 12 enclose a containing cavity for containing the fan 30 and an air duct inlet 13 communicated with the containing cavity, the rear cover 20 is covered on one side of the fan 30 away from the main body portion 11 and connected with the peripheral portion 12, the rear cover 20 is further provided with an air inlet 21 communicated with the containing cavity, the peripheral portion 12 is formed with an air duct 14 communicated with the air duct inlet 13 and an air outlet 15 communicated with the air duct 14, the air outlet 15 is located on one side of the peripheral portion 12 away from the rear cover 20, the air duct 14 and the air outlet 15 are both annular and surrounding the periphery of the fan 30, and the fan 30 is used for guiding air in the air inlet 21 of the rear cover 20 to be blown out from the air outlet 15 through the containing cavity, the air duct inlet 13.
In one embodiment, the number of the fans 30 is two, and the two fans 30 are located in the same accommodating cavity. The number of the air duct inlets 13 is two, the two air duct inlets 13 are respectively located on two opposite sides of the annular air duct 14, and the two fans 30 are respectively arranged corresponding to the two air duct inlets 13 to guide the air in the air inlet holes 21 of the rear cover 20 to the air duct 14. In this embodiment, the cross-sectional width of the air duct 14 gradually decreases and then gradually increases along a direction away from the air outlet 15, and the cross-sectional width of the air outlet 15 is less than or equal to the cross-sectional width of the air duct 14.
According to an embodiment of the present invention, the two fans 30 are centrifugal fans. It can be understood that the two fans 30 can drive the impellers in the fans 30 by the motor, so that the air in the blade channels of the fans 30 moves outwards towards the fans 30 under the action of centrifugal force, thereby generating vacuum degree in the centers of the impellers and sucking air axially from the air inlet holes 21 of the back cover 20, the air flow is sucked from the air inlet holes 21 of the back cover 20 into the accommodating cavity, kinetic energy and pressure energy are obtained under the action of the blades so that the air flow enters the air channel 14 through the two air channel air inlets 13, a laminar flow is formed in the air channel 14 according to the structure that the cross-sectional width of the air channel 14 gradually decreases and then gradually increases along the direction away from the air outlet 15 and the air flow speed, thereby reducing the influence of turbulent flow generated when the two air flows sent by the centrifugal fans meet in the air channel 14, the air pressure formed by the high-speed air flow ejects the air flow from the air outlet 15, so as to drive the air around the air outlet 15 to form a stable air flow laminar flow. Under the structure of the multi-fan 30, the wind pressure is improved, the wind volume is multiplied but the noise is not multiplied, the rotating speed of the fan 30 is controlled within the range of 4000rpm-5000rpm, the layout of the fan 30 and the air duct 14 is combined, the stroke of airflow in the air duct 14 is shortened, the air around the air outlet 15 can be driven to form 15 times of air multiplication, and the high-frequency noise is effectively reduced while the wind volume is ensured.
In order to further reduce the noise generated by the fan 30, on the basis of the above embodiment, the rear cover 20 may further have a plurality of air inlet holes 21 arranged in a honeycomb shape, and based on the principle of reducing noise in the small holes, the air flow vibrates in the small holes to generate heat, thereby reducing the noise vibration energy, and thus reducing the noise generated by the fan 30, in another embodiment, a damping noise reduction element 50 is further disposed between the rear cover 20 and the peripheral portion 12, and a layer of damping material is closely combined between the rear cover 20 and the peripheral portion 12, and the damping material can convert the vibration energy into heat energy by intermolecular extrusion friction in the process of forced deformation and extrusion, thereby reducing the noise.
In order to enhance the stability of the bladeless fan 100, on the basis of the above embodiment, the bladeless fan 100 further includes a bracket 60, the bracket 60 is connected to the outer peripheral portion 12, and the bracket 60 and the housing 10 are integrally formed, wherein the bracket 60 includes a supporting portion 61, a first connecting portion 62 connected to one end of the supporting portion 61, and a second connecting portion 63 connected to the other end of the supporting portion 61, the other end of the first connecting portion 62 is connected to the outer peripheral portion 12, and the other end of the second connecting portion 63 is connected to the outer peripheral portion 12, so that the outer peripheral portion 12 and the bracket 60 form an opening. The shell 10 and the bracket 60 are integrated, so that the stability of the bladeless fan 100 in the operation process is enhanced, the vibration of the bladeless fan 100 is reduced, the size of the bladeless fan 100 is reduced, the bladeless fan 100 can be placed on furniture such as a table top and a tea table, and the use by a user is facilitated.
In another embodiment, the bladeless fan 100 further includes a control element 40, and the control element 40 is disposed on a side of the fan 30 away from the rear cover 20 and is located at a center position of the annular air duct 14. The control element 40 enables a user to select functions of the bladeless fan 100 according to requirements, the control element 40 is located at the center of the annular air duct 14, operation is convenient, installation space does not need to be separately arranged, and the structure of the bladeless fan 100 is compact.
Compared with the prior art, the utility model discloses a bladeless fan passes through the shell the main part with peripheral portion encloses into acceping the fan accept the chamber and with accept the wind channel air inlet of chamber intercommunication, the fan be used for the guide will the air inlet of back lid's air inlet via accept the chamber the wind channel air inlet the wind channel is followed the air outlet blows off, the fan with the close setting in wind channel has reduced the loss of air current in transmission process, has promoted fan efficiency.
Furthermore, an air duct communicated with the air inlet of the air duct and an air outlet communicated with the air duct are formed in the peripheral portion, and the air duct and the shell are of an integrated structure, so that the stability of the bladeless fan is enhanced, and the vibration loss is reduced.
Further, the number of the fans is two, and the two fans are located in the same accommodating cavity, so that the air quantity of the bladeless fan is increased.
Furthermore, the control element is positioned at the center of the annular air duct, so that the bladeless fan is more compact in structure and reduced in size while the convenience of use of the bladeless fan is improved.
Further, the rear cover has a plurality of air inlet holes arranged in a honeycomb shape to reduce noise generated from the fan.
Furthermore, a damping noise reduction element is arranged between the rear cover and the peripheral part to convert vibration energy into heat energy, reduce vibration and reduce noise.
Further, the bracket and the shell are of an integrally formed structure, and the opening formed by the surrounding part and the bracket is used for increasing the stability of the bladeless fan and further reducing the volume of the fan.
The above disclosure is only one embodiment of the present invention, and certainly should not be limited thereto, and the scope of the invention is accordingly intended to be encompassed by the present invention, even if equivalents thereof are made.
Claims (10)
1. A bladeless fan is characterized by comprising a shell, a rear cover and a fan,
the shell comprises a main body part and a peripheral part connected with and annularly arranged outside the main body part, the main body part and the peripheral part form an accommodating cavity for accommodating the fan and an air duct air inlet communicated with the accommodating cavity,
the rear cover is arranged on one side of the fan far away from the main body part and is connected with the peripheral part,
the peripheral part is provided with an air duct communicated with the air inlet of the air duct and an air outlet communicated with the air duct, the air outlet is positioned at one side of the peripheral part far away from the rear cover, the air duct and the air outlet are both annular and annularly arranged at the periphery of the fan, the rear cover is also provided with an air inlet communicated with the containing cavity,
the fan is used for guiding the air of the air inlet hole of the rear cover to be blown out from the air outlet through the accommodating cavity, the air inlet of the air duct and the air duct.
2. The bladeless fan of claim 1, wherein: the quantity of fan is two, two fans all are located same accept the chamber.
3. The bladeless fan of claim 2, wherein: the two fans are both centrifugal fans.
4. The bladeless fan of claim 2, wherein: the number of the air duct air inlets is two, the two air duct air inlets are respectively located on two opposite sides of the air duct, and the two fans respectively correspond to the two air duct air inlets so as to guide air in the air inlet hole of the rear cover to the air duct.
5. The bladeless fan of claim 1, wherein: the air duct is characterized in that the width of the cross section of the air duct is gradually reduced and then gradually increased along the direction far away from the air outlet, and the width of the cross section of the air outlet is smaller than or equal to the width of the cross section of the air duct.
6. The bladeless fan of claim 1, wherein: the bladeless fan further comprises a control element, wherein the control element is arranged on one side, away from the rear cover, of the fan and is located in the center of the air channel.
7. The bladeless fan of claim 1, wherein: the rear cover is provided with a plurality of air inlet holes arranged in a honeycomb shape.
8. The bladeless fan of claim 1, wherein: and a damping noise reduction element is also arranged between the rear cover and the peripheral part.
9. The bladeless fan of claim 1, wherein: the bladeless fan further comprises a support, the support is connected with the periphery, and the support and the shell are of an integrally formed structure.
10. The bladeless fan of claim 9, wherein: the support comprises a supporting portion, a first connecting portion and a second connecting portion, the first connecting portion is connected to one end of the supporting portion, the second connecting portion is connected to the other end of the supporting portion, the other end of the first connecting portion is connected with the peripheral portion, the other end of the second connecting portion is connected with the peripheral portion, and the peripheral portion and the support are surrounded to form a through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020519577.4U CN212672121U (en) | 2020-04-10 | 2020-04-10 | Bladeless fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020519577.4U CN212672121U (en) | 2020-04-10 | 2020-04-10 | Bladeless fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212672121U true CN212672121U (en) | 2021-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020519577.4U Active CN212672121U (en) | 2020-04-10 | 2020-04-10 | Bladeless fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212672121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090564A (en) * | 2021-04-27 | 2021-07-09 | 深圳市几素科技有限公司 | Fan with cooling device |
-
2020
- 2020-04-10 CN CN202020519577.4U patent/CN212672121U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090564A (en) * | 2021-04-27 | 2021-07-09 | 深圳市几素科技有限公司 | Fan with cooling device |
| CN113090564B (en) * | 2021-04-27 | 2023-11-10 | 深圳市几素科技有限公司 | Fan with fan body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220527 Address after: 518000 floor 1, building C, Chuangzhi Park, No. 18, Shangnan Shangliao Industrial Road, Shangliao community, Xinqiao street, Bao'an District, Shenzhen, Guangdong Province Patentee after: Guoao display and semiconductor technology (Shenzhen) Co.,Ltd. Address before: 808, national technology building, 109 Baoshen Road, songpingshan community, Xili street, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: GOAL TECHNOLOGY (SHENZHEN) Co.,Ltd. |
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| TR01 | Transfer of patent right |