CN110594176A - Intelligent wind tunnel fan - Google Patents
Intelligent wind tunnel fan Download PDFInfo
- Publication number
- CN110594176A CN110594176A CN201911028229.5A CN201911028229A CN110594176A CN 110594176 A CN110594176 A CN 110594176A CN 201911028229 A CN201911028229 A CN 201911028229A CN 110594176 A CN110594176 A CN 110594176A
- Authority
- CN
- China
- Prior art keywords
- fan
- wind tunnel
- intelligent
- air
- air outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920000742 Cotton Polymers 0.000 claims abstract description 8
- 238000007664 blowing Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 238000004378 air conditioning Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an intelligent wind tunnel fan, and belongs to the technical field of fans. The intelligent wind tunnel fan comprises an intelligent display screen, a fan air inlet device, a motor blade device, a wind tunnel air outlet device and a fan base; the intelligent display screen is placed right in front of the intelligent wind tunnel fan, intelligent operation can be performed in a touch mode, a remote control mode or a voice control mode, and the intelligent display screen is convenient for a consumer to control and use; the filter cotton is designed in the fan air inlet device to filter air entering the fan, so that the fan is clean and sanitary; the motor fan blade device uses the motor to assemble the centrifugal fan blades and is placed in the shell to operate, the noise is low, the efficiency is high, the fan blades cannot be contacted from the outside, and the operation process has extremely high safety for adults and children; the wind tunnel air outlet device is arranged around the centrifugal fan blade and directly blows out high-pressure airflow generated by the centrifugal fan blade from an air outlet of the wind tunnel; the fan base is used for supporting the fan to run.
Description
Technical Field
The invention relates to the technical field of fans, in particular to an intelligent wind tunnel fan.
Background
The traditional fan drives the fan blades to rotate through the motor, air is blown to a user at high speed by utilizing high-speed rotation of the fan blades, the ventilation and cooling effects are achieved, and most of fans are surrounded by the mesh enclosure to reduce dangers. With the development of science and technology, the requirements of consumers on fans are higher and higher, the traditional fan is low in intelligent degree and efficiency, and the fan blades in the use process run at high speed, so that fingers of children cannot be prevented from extending into the mesh enclosure and being cut by the fan blades; secondly, after the fan is used for a long time, dust is accumulated on the fan blades and the net cover, and the fan is difficult to scrub.
In view of the above, a new technical solution is urgently needed to solve the above technical problems.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an intelligent wind tunnel fan which is higher in intelligence and safety and cleaner.
In order to achieve the purpose, the invention adopts the following technical scheme:
an intelligent wind tunnel fan comprises a shell, an intelligent display screen, a fan air inlet device, a motor fan blade device, a wind tunnel air outlet device and a fan base.
The intelligent display screen is arranged right in front of the wind tunnel fan and can be operated in a touch, remote control or voice control mode;
the fan air inlet device comprises an air inlet, filter cotton is arranged in the air inlet, and the filter cotton is used for filtering air entering the fan;
the motor fan blade device comprises a motor and a centrifugal fan blade, the motor and the centrifugal fan blade are both arranged in the shell, and the motor is used for driving the centrifugal fan blade to rotate;
the wind tunnel air outlet device comprises a plurality of wind tunnels, each wind tunnel is provided with an air outlet, and the plurality of wind tunnels are distributed around the centrifugal fan blades and used for blowing out airflow generated by the centrifugal fan blades from the air outlets;
the fan base is used for supporting the wind tunnel fan.
As a further improvement, the intelligent display screen is placed right in front of the wind tunnel fan.
As a further improvement, the air inlet is arranged at the rear end or the front end of the wind tunnel fan.
As a further improvement, the air outlet is arranged on the inner wall or at the front end of the wind tunnel.
As a further improvement, the air outlet is provided with a flow guide strip for guiding flow and jetting high-speed airflow to drive air to circularly flow.
As a further improvement, the fan base comprises a fan bracket and a base, and the fan bracket is in a semicircular ring shape, a circular ring shape or other shapes;
the fan support is matched with the base to form a floor fan, a table fan, a wall fan, a ceiling fan or other types of fans.
Compared with the prior art, the invention has the following beneficial effects:
the intelligent wind tunnel fan is provided with an intelligent display screen, intelligent operation can be performed through modes such as touch, remote control or voice control, the intelligent degree is high, the designed centrifugal fan blades can generate high-pressure airflow and blow out from a plurality of wind tunnels to drive a large amount of air to circulate; the centrifugal fan blades are arranged in the shell and are not exposed, the centrifugal fan blades have excellent safety to adults and children in the operation process, and have the characteristics of high efficiency, small noise, large air volume and the like; the air inlet device of the fan is provided with the air filter cotton, so that the fan is clean and sanitary.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of the general construction of a wind tunnel fan according to the present invention;
FIGS. 2 and 3 are schematic structural views of a fan intake device of a wind tunnel fan according to the present invention;
FIG. 4 is a schematic structural view of a centrifugal fan blade of the wind tunnel fan of the present invention;
fig. 5 to 7 are schematic diagrams of an intelligent display screen, a base and an air outlet device of a wind tunnel fan according to the present invention;
fig. 8 to 11 are schematic views of an air outlet of the air outlet device of the wind tunnel fan according to the present invention.
Description of the main element symbols:
1-an intelligent display screen; 2-a fan air intake device; 3-motor fan blade device; 4-a fan air outlet device; 5-a fan base; 21-filter cotton; 31-a motor; 32-centrifugal fan blades; 321-fan blades; 322-upper cover; 323-lower cover; 33-a housing; 41-a wind tunnel; 42-air outlet; 43-flow guide strips; 51-a fan bracket; 52-base.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The core concept of the invention is to provide an intelligent wind tunnel fan, which has the main principle that centrifugal fan blades rotate at a high speed to drive airflow to do centrifugal motion in a shell, so that high-pressure airflow is formed and then is blown out from an air outlet, and the intelligent wind tunnel fan is a brand-new novel intelligent wind tunnel air outlet fan. The air outlet of the intelligent wind tunnel fan is arranged into a wind tunnel structure and is uniformly distributed on the air outlet surface of the intelligent wind tunnel fan, and the intelligent wind tunnel fan has the advantage of large air outlet quantity.
Examples
Referring to fig. 1, which is a schematic overall structure diagram of a preferred embodiment of the present invention, the wind tunnel fan of the present invention includes an intelligent display screen 1, a fan air intake device 2, a motor blade device 3, a fan air outlet device 4, and a fan base 5, and the wind tunnel fan has a housing 33.
Please refer to fig. 2 and fig. 3, which are two preferred embodiments of the wind tunnel fan of the present invention, and show structural schematic diagrams of two fan air intake devices 2. The filter cotton 21 is installed in a fan air inlet device 2 of the wind tunnel fan, and the fan air inlet device 2 can be placed at the rear end of the wind tunnel fan to supply air from the rear end, and also can be placed at the front end of the wind tunnel fan to supply air from the front end; the motor blade device 3 of the wind tunnel fan comprises a motor 31 and a centrifugal blade 32, wherein the motor 31 and the centrifugal blade 32 are installed inside a shell 33, high-pressure airflow generated by the centrifugal blade 32 is blown out through an air outlet 42 of a wind tunnel 41, and the air outlet 42 can be distributed on the inner wall of the wind tunnel 41, also can be distributed at the front end of the wind tunnel 41, or can be distributed on the inner wall and the front end simultaneously; the intelligent display screen 1 can be round, square, annular or other shapes, is arranged right in front of the wind tunnel fan, can be intelligently operated in a touch, remote control or voice control mode and the like, and is convenient for consumers to control and use; the intelligent display screen 1 can display basic functions of switching on and off of an intelligent wind tunnel fan, gear adjustment, timed shaking and the like; the intelligent display screen 1 can also display temperature, humidity, air quality and the like; the intelligent display screen 1 can also be an artificial intelligent screen or a visual intelligent sound box and the like, and can be connected with the Internet for relevant operation.
Please refer to fig. 4, which is a schematic structural diagram of a centrifugal fan blade 32 of the wind tunnel fan according to a preferred embodiment of the present invention. The motor fan blade device 3 of the wind tunnel fan comprises a centrifugal fan blade 32, wherein the centrifugal fan blade 32 is composed of a plurality of fan blades 321, an upper cover 322 and a lower cover 323, the blade profile of the fan blades 321, the upper cover 322 and the lower cover 323 form a closed channel through optimized design, high-pressure airflow is generated, flow loss is less, and efficiency is high.
Fig. 5 to 7 are schematic diagrams of an intelligent display screen 1, a fan base 5 and a fan air-out device 4 of a wind tunnel fan according to two preferred embodiments of the present invention. The intelligent display screen 1 of the wind tunnel fan is placed in front of the wind tunnel fan, the intelligent display screen 1 can be in a circular shape, a square shape, an annular shape or other shapes, and the intelligent display screen is suitable for the position and the shape in front of the wind tunnel fan. The intelligent display screen 1 can be operated by touch, remote control or voice control; the intelligent display screen 1 can display basic functions of a wind tunnel fan such as switching, gear adjustment, timing head shaking and the like, further can display temperature and humidity, air quality and the like, and further can be an artificial intelligent screen sound box; the fan base 5 structurally comprises a fan support 51 and a base 52, wherein the fan support 51 can be in a circular shape, a semicircular shape or other shapes, the fan is matched with the base 52 according to the fan support 51, and the fan can be combined into a standard fan, a table fan, a wall fan, a ceiling fan or other fans; the fan air outlet device 4 is composed of three or more wind tunnels 41, and is distributed around the centrifugal fan blade 32, and the wind tunnels 41 are provided with slit air outlets 42 and flow guide strips 43.
Fig. 8 to fig. 11 are schematic views of three outlets 42 of the fan outlet device 4 of the wind tunnel fan according to three preferred embodiments of the present invention. The air outlet 42 of the wind tunnel fan may be distributed on the inner wall of the wind tunnel 41 (as shown in fig. 9), or may be distributed at the front end of the wind tunnel 41 (as shown in fig. 10), or may be distributed on both the inner wall and the front end (as shown in fig. 11) to eject high-speed airflow to drive the air to flow circularly.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (6)
1. An intelligence wind-tunnel fan which characterized in that: the intelligent air-conditioning system comprises a shell, an intelligent display screen, a fan air inlet device, a motor fan blade device, a wind tunnel air outlet device and a fan base;
the intelligent display screen is arranged right in front of the wind tunnel fan and can be operated in a touch, remote control or voice control mode;
the fan air inlet device comprises an air inlet, filter cotton is arranged in the air inlet, and the filter cotton is used for filtering air entering the fan;
the motor fan blade device comprises a motor and a centrifugal fan blade, the motor and the centrifugal fan blade are both arranged in the shell, and the motor is used for driving the centrifugal fan blade to rotate;
the wind tunnel air outlet device comprises a plurality of wind tunnels, each wind tunnel is provided with an air outlet, and the plurality of wind tunnels are distributed around the centrifugal fan blades and used for blowing out airflow generated by the centrifugal fan blades from the air outlets;
the fan base is used for supporting the wind tunnel fan.
2. The intelligent wind tunnel fan of claim 1, wherein: the intelligent display screen is placed right in front of the wind tunnel fan.
3. The intelligent wind tunnel fan of claim 1, wherein: the air inlet is arranged at the rear end or the front end of the wind tunnel fan.
4. The intelligent wind tunnel fan of claim 1, wherein: the air outlet is arranged on the inner wall or the front end of the wind tunnel.
5. The intelligent wind tunnel fan of claim 4, wherein: the air outlet is provided with a flow guide strip for guiding flow and jetting high-speed airflow to drive air to circularly flow.
6. The intelligent wind tunnel fan of claim 1, wherein: the fan base comprises a fan bracket and a base, and the fan bracket is in a semicircular ring shape, a circular ring shape or other shapes;
the fan support is matched with the base to form a floor fan, a table fan, a wall fan, a ceiling fan or other types of fans.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911028229.5A CN110594176A (en) | 2019-10-28 | 2019-10-28 | Intelligent wind tunnel fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911028229.5A CN110594176A (en) | 2019-10-28 | 2019-10-28 | Intelligent wind tunnel fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110594176A true CN110594176A (en) | 2019-12-20 |
Family
ID=68850522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911028229.5A Pending CN110594176A (en) | 2019-10-28 | 2019-10-28 | Intelligent wind tunnel fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110594176A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111155916A (en) * | 2020-01-20 | 2020-05-15 | 华侨大学 | Air wall water blocking device |
| CN117937799A (en) * | 2024-01-26 | 2024-04-26 | 瑞安市亿康降温设备有限公司 | Industrial ceiling fan motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201222208Y (en) * | 2008-06-18 | 2009-04-15 | 秦彪 | Portable computer |
| CN101949387A (en) * | 2010-05-05 | 2011-01-19 | 吴新尧 | Wind tunnel-type fan |
| CN204855126U (en) * | 2015-07-29 | 2015-12-09 | 四川科瑞达电子技术有限公司 | Industrial products heat abstractor capability test system |
| CN205315320U (en) * | 2015-12-29 | 2016-06-15 | 广州同励质量技术服务有限公司 | Intelligent fan |
| CN106194834A (en) * | 2015-02-05 | 2016-12-07 | 张伟 | The nested type air exhausting structure of wind-tunnel |
| CN106368966A (en) * | 2016-11-10 | 2017-02-01 | 张伟 | Ceiling fan without blades |
| US20180223864A1 (en) * | 2017-02-07 | 2018-08-09 | Shu-Hsien Chou | Air blower |
| CN210660684U (en) * | 2019-10-28 | 2020-06-02 | 深圳市主丰科技有限公司 | Intelligent wind tunnel fan |
-
2019
- 2019-10-28 CN CN201911028229.5A patent/CN110594176A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201222208Y (en) * | 2008-06-18 | 2009-04-15 | 秦彪 | Portable computer |
| CN101949387A (en) * | 2010-05-05 | 2011-01-19 | 吴新尧 | Wind tunnel-type fan |
| CN106194834A (en) * | 2015-02-05 | 2016-12-07 | 张伟 | The nested type air exhausting structure of wind-tunnel |
| CN204855126U (en) * | 2015-07-29 | 2015-12-09 | 四川科瑞达电子技术有限公司 | Industrial products heat abstractor capability test system |
| CN205315320U (en) * | 2015-12-29 | 2016-06-15 | 广州同励质量技术服务有限公司 | Intelligent fan |
| CN106368966A (en) * | 2016-11-10 | 2017-02-01 | 张伟 | Ceiling fan without blades |
| US20180223864A1 (en) * | 2017-02-07 | 2018-08-09 | Shu-Hsien Chou | Air blower |
| CN210660684U (en) * | 2019-10-28 | 2020-06-02 | 深圳市主丰科技有限公司 | Intelligent wind tunnel fan |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111155916A (en) * | 2020-01-20 | 2020-05-15 | 华侨大学 | Air wall water blocking device |
| CN117937799A (en) * | 2024-01-26 | 2024-04-26 | 瑞安市亿康降温设备有限公司 | Industrial ceiling fan motor |
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