CN106122118A - Net cover and fan - Google Patents
Net cover and fan Download PDFInfo
- Publication number
- CN106122118A CN106122118A CN201610748442.3A CN201610748442A CN106122118A CN 106122118 A CN106122118 A CN 106122118A CN 201610748442 A CN201610748442 A CN 201610748442A CN 106122118 A CN106122118 A CN 106122118A
- Authority
- CN
- China
- Prior art keywords
- air
- cross
- fan
- guard
- sectional area
- 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
- 230000000694 effects Effects 0.000 abstract description 20
- 238000009423 ventilation Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 206010019345 Heat stroke Diseases 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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 relates to a mesh enclosure and a fan, wherein the mesh enclosure comprises a plurality of ventilation holes (1), the ventilation holes (1) are provided with air inlet ends (2) and air outlet ends (3), and the cross section area of the air inlet ends (2) is larger than that of the air outlet ends (3). According to the invention, the plurality of vent holes are arranged on the mesh enclosure, and the cross section area of the air inlet end of each vent hole is larger than that of the air outlet end, so that the vent holes form a necking structure, according to the principle that necking can reduce temperature, the temperature of air flow is reduced after passing through the vent holes, the heat exchange effect between the air outlet and a cooled object is enhanced, and the mesh enclosure is arranged on the fan, thereby being beneficial to improving the heat exchange effect of the fan.
Description
Technical field
The present invention relates to technical field of electric appliances, particularly relate to a kind of guard and fan.
Background technology
Electric fan is called for short electric fan, also referred to as fan, ventilating fan, is that one utilizes motor-driven flabellum to rotate, reaches
Make air accelerate the household electrical appliance of circulation, be mainly used in cooling and heatstroke-eliminating and ventilating air, be widely applied to the daily work of people
In living.
Electric fan is mainly made up of the parts such as fan head, fan blade, guard and control device, and its middle fan head includes motor, front and back
End cap and wind pushing mechanism etc. of shaking the head.Its operation principle is: the hot-wire coil in motor in magnetic field stress and rotate, by electric energy
It is converted into mechanical energy, thus is rotated by fan blade and strengthen cross-ventilation, take away the heat on body surface.But, with object table
It is room temperature all the time that face carries out the air of heat exchange, and heat exchange effect is limited.
Summary of the invention
The purpose of the present invention is to propose to a kind of guard and fan, to promote the heat exchange effect of prior art wind fan.
For achieving the above object, the invention provides a kind of guard, including multiple air vents, described air vent is provided with air intake
End and outlet air end, the cross-sectional area of described air intake is more than the cross-sectional area of described outlet air end.
Further, the internal face of described air vent smoothly transits to described outlet air end from described air intake.
Further, the cross-sectional area of described air vent is tapered from described air intake to described outlet air end.
Further, the cross-sectional area of described air vent linearly changes from described air intake to described outlet air end.
Further, the cross-sectional area of described air vent is tapered from described air intake to described outlet air end, and
The internal face of described air vent smoothly transits to described outlet air end from described air intake.
Further, the cross-sectional area of described air intake is 3:1 with the ratio of the cross-sectional area of described outlet air end.
Further, the cross section of described air intake and/or the circular in cross-section of described outlet air end.
For achieving the above object, present invention also offers a kind of fan, including above-mentioned guard.
Further, described guard is arranged on the air inlet of described fan.
Further, described guard is arranged at the air outlet of described fan.
Based on technique scheme, the present invention is by arranging multiple air vent on guard, and makes entering of air vent
The cross-sectional area of wind end is more than the cross-sectional area of outlet air end, and such air vent just defines throat structure, according to reducing energy
The principle of enough throttling coolings, air-flow reduces in temperature after air vent, enhances the heat exchange between air-out and object to be cooled
Effect, is contained on fan the heat exchange effect being conducive to promoting fan by guard.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of one embodiment of guard of the present invention.
Fig. 2 is the sectional view of Section A-A in Fig. 1 embodiment.
Fig. 3 is the enlarged drawing of part shown in label P in Fig. 2.
Fig. 4 is the sectional view of air vent in one embodiment of guard of the present invention.
Fig. 5 is the sectional view of air vent in another embodiment of guard of the present invention.
Fig. 6 is the sectional view of air vent in another embodiment of guard of the present invention.
In figure: 1-air vent, 2-air intake, 3-outlet air end.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in embodiment is clearly and completely retouched
State.Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on this
Bright embodiment, the every other enforcement that those of ordinary skill in the art are obtained under not making creative work premise
Example, broadly falls into the scope of protection of the invention.
In describing the invention, it is to be understood that term " " center ", " laterally ", " longitudinally ", "front", "rear",
"left", "right", " on ", D score, " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description rather than instruction or dark
The device or the element that show indication must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
The restriction of scope.
As it is shown in figure 1, the present invention proposes a kind of guard, this guard is provided with multiple air vent 1, and described air vent 1 is provided with
Air intake 2 and outlet air end 3, the cross-sectional area of described air intake 2 is more than the cross-sectional area of described outlet air end 3.Wherein, transversal
Face is meant that along the cross section with the direction cutting of the central axis of air vent 1.
By arranging multiple air vent 1 on guard, and the cross-sectional area of the air intake 2 of air vent 1 is more than
The cross-sectional area of outlet air end 3, such air vent just defines throat structure, the principle of the cooling that can throttle according to reducing, gas
Stream reduces in temperature after air vent, enhances the heat transfer effect between air-out and object to be cooled, guard is contained in fan
The upper heat exchange effect being conducive to promoting fan.
Reducing can throttle the principle lowered the temperature particularly as follows: as it is shown on figure 3, air-flow A enters air vent 1 from air intake 2, pass through
Stream B, the air-flow B flow velocity relative to air-flow A that puffs away after throat structure increases, and pressure reduces, and after pressure reduction, in air-flow B, water steams
The evaporating temperature of vapour reduces, and the heat absorbed during steam gasification in such air-flow B will compare many, so that air-flow B
Temperature also more relatively low than air-flow A, therefore increase heat transfer temperature difference, it is possible to bring more preferable heat transfer effect.
Can be seen that from Fig. 1 and Fig. 2, this guard is actually a cover body structure the thinnest, is adapted for mount on any air-out
Mouth or air inlet, to lower the temperature air-out or air intake, reach more preferable heat exchange effect.
The global shape of guard is preferably but not limited to rounded, and the versatility of circular guard is preferable and round-shaped
Advantageously ensure that the stability of air-flow.In other embodiments, the global shape of guard can also square, rectangle, ellipse
Circular etc..
In a preferred embodiment of guard of the present invention, the internal face of described air vent 1 from described air intake 2 to described
Outlet air end 3 smoothly transits.Internal face smoothly transits and airflow can be made more steady, reduces and draws owing to wall is the most smooth
The flow perturbation risen, reduces wind loss, reduces the noise that flow perturbation is caused.
In the above-described embodiments, smoothly transit when only defining the internal face of air vent 1, not the horizontal stroke to air vent 1
Area of section is defined to the variation tendency of described outlet air end 3 from described air intake 2, and its variation tendency may be such as Fig. 3 or Fig. 5
Shown in be gradual change；It is likely to as shown in Figure 4, first gradual change, keep constant the most again；It is also possible that first keep constant, more gradually
Become；Or as shown in Figure 6, first gradual change, then keep constant, then gradual change etc..
In another preferred embodiment of guard of the present invention, the cross-sectional area of described air vent 1 is from described air intake 2
It is tapered to described outlet air end 3.Tapered version can make the air-flow cooling-down effect through this air vent 1 brighter
Aobvious, heat transfer effect is more preferably.
In this embodiment, only define the cross-sectional area of air vent 1 from described air intake 2 to described outlet air end 3
Variation tendency, and whether do not limit air vent 1 internal face for smoothly transitting.Wherein, tapered concrete form also has multiple, than
As, as it is shown on figure 3, the cross-sectional area of described air vent 1 linearly changes to described outlet air end 3 from described air intake 2；Such as figure
Shown in 5, the cross-sectional area of described air vent 1 is tapered to the segmentation of described outlet air end 3 from described air intake 2, every section of speed reduced
Rate is different.
In another preferred embodiment of guard of the present invention, the cross-sectional area of described air vent 1 is from described air intake 2
It is tapered to described outlet air end 3, and the internal face of described air vent 1 slips over to described outlet air end 3 light from described air intake 2
Cross.This embodiment combines the advantage of above-mentioned two embodiment, can either reach preferable heat transfer effect, can reduce again air-flow
Disturbance, reduces noise and windage loss.
Preferably, the cross-sectional area of described air intake 2 is 3:1 with the ratio of the cross-sectional area of described outlet air end 3.Air intake
The ratio of the cross-sectional area of end 2 and outlet air end 3 is too big, may affect air output, or cause the pressure of air intake 2 side relatively
Greatly；The ratio of the cross-sectional area of air intake 2 and outlet air end 3 is the least, then may be unable to reach preferable cooling-down effect, therefore this ratio
Example, for being preferably provided with, can either reach preferable cooling-down effect, will not impact air-out again.
It addition, the cross section of the cross section of described air intake 2 and/or described outlet air end 3 is preferably but not limited to rounded,
Air-out so can be made more smooth and easy, the beneficially stability of air-flow.
Specifically, the cross sectional dimensions of air intake 2 and the cross sectional dimensions of outlet air end 3 can be according to the diameter of guard and thickness
Degree is adjusted, to reach preferable cooling-down effect.Such as, the cross-sectional diameter of described air intake 2 can be 100mm, and/or
The cross-sectional diameter of described outlet air end 3 can be 30mm.This setting can either reach preferable cooling-down effect, is not just interfering with again
Often air-out, and it is applicable to the size of most air inlet or air outlet, versatility is higher.
Guard in each embodiment above-mentioned can apply to all kinds of electric equipment, industrial equipment etc. and utilizes air the most right
In the device of stream or other gas flow pattern, to promote the effect of heat exchange.
Especially, above-mentioned guard may be mounted on fan, and to reduce the leaving air temp of fan, people are using fan
Time, the gas flow temperature experienced is no longer identical with ambient temperature, but lower than ambient temperature, improves the body of fan
Test effect.
Wherein, above-mentioned guard can be arranged on the air inlet of described fan, so that air-flow is promoting it through passing through fan
Before reduced temperature；Can also be arranged at the air outlet of fan, so that the air-flow through passing through fan promotion realizes in outlet
Temperature reduces.
Explanation by the multiple embodiments to guard of the present invention and fan, it can be seen that guard of the present invention and fan are implemented
Example is designed by reducing, and the air flowed through carries out throttling cooling, makes electric fan leaving air temp be less than inlet temperature, thus strengthens
Heat transfer temperature difference between air and object to be cooled, to promote heat transfer effect.
Finally should be noted that: above example is only in order to illustrate that technical scheme is not intended to limit；To the greatest extent
The present invention has been described in detail by pipe with reference to preferred embodiment, and those of ordinary skill in the field are it is understood that still
The detailed description of the invention of the present invention can be modified or portion of techniques feature is carried out equivalent；Without deviating from this
The spirit of bright technical scheme, it all should be contained in the middle of the technical scheme scope that the present invention is claimed.
Claims (10)
1. a guard, it is characterised in that include that multiple air vent (1), described air vent (1) are provided with air intake (2) and air-out
End (3), the cross-sectional area of described air intake (2) is more than the cross-sectional area of described outlet air end (3).
Guard the most according to claim 1, it is characterised in that the internal face of described air vent (1) is from described air intake (2)
Smoothly transit to described outlet air end (3).
Guard the most according to claim 1, it is characterised in that the cross-sectional area of described air vent (1) is from described air intake
End (2) to described outlet air end (3) is tapered.
Guard the most according to claim 3, it is characterised in that the cross-sectional area of described air vent (1) is from described air intake
End (2) to described outlet air end (3) linearly changes.
Guard the most according to claim 1, it is characterised in that the cross-sectional area of described air vent (1) is from described air intake
End (2) to described outlet air end (3) be tapered, and the internal face of described air vent (1) from described air intake (2) to described go out
Wind end (3) smoothly transits.
Guard the most according to claim 1, it is characterised in that the cross-sectional area of described air intake (2) and described air-out
The ratio of the cross-sectional area of end (3) is 3:1.
Guard the most according to claim 1, it is characterised in that the cross section of described air intake (2) and/or described outlet air end
(3) circular in cross-section.
8. a fan, it is characterised in that include the guard as described in any one of claim 1～7.
Fan the most according to claim 8, it is characterised in that described guard is arranged on the air inlet of described fan.
Fan the most according to claim 8, it is characterised in that described guard is arranged at the air outlet of described fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748442.3A CN106122118A (en) | 2016-08-29 | 2016-08-29 | Net cover and fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748442.3A CN106122118A (en) | 2016-08-29 | 2016-08-29 | Net cover and fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106122118A true CN106122118A (en) | 2016-11-16 |
Family
ID=57272669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610748442.3A Pending CN106122118A (en) | 2016-08-29 | 2016-08-29 | Net cover and fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106122118A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368968A (en) * | 2016-11-23 | 2017-02-01 | 西南科技大学 | Self-cooling fan |
| CN106679258A (en) * | 2016-11-18 | 2017-05-17 | 广西大学 | Cold air cooling device |
| CN107894084A (en) * | 2017-12-20 | 2018-04-10 | 珠海格力电器股份有限公司 | Air conditioner air outlet component and air conditioner |
| CN108612673A (en) * | 2016-12-13 | 2018-10-02 | 宁波创润新材料有限公司 | Heat sink |
| CN108895003A (en) * | 2018-05-14 | 2018-11-27 | 云南林业职业技术学院 | Cooling fan and its industrial setting method |
| CN109664896A (en) * | 2018-12-28 | 2019-04-23 | 北京起重运输机械设计研究院有限公司 | A kind of suspended carriage and cableway system |
| CN110894930A (en) * | 2019-12-03 | 2020-03-20 | 西安电子科技大学芜湖研究院 | Antifog car lamps and lanterns of high-efficient heat dissipation |
| CN112032078A (en) * | 2020-07-29 | 2020-12-04 | 武汉大学 | Active high-efficient accuse temperature's efflux spray tube cooling system |
| CN112692244A (en) * | 2020-11-27 | 2021-04-23 | 河北永洋特钢集团有限公司 | Steel ladle surface layer slag weight detection device |
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|---|---|---|---|---|
| CN2648135Y (en) * | 2003-08-21 | 2004-10-13 | 英业达股份有限公司 | Radiating mechanism |
| GB2468498A (en) * | 2009-03-11 | 2010-09-15 | Duncan Charles Thomson | Floor mounted mobile air circulator |
| CN102434952A (en) * | 2011-09-15 | 2012-05-02 | 广州约顿电子科技有限公司 | Method for solving problem of air supply uniformity in large-area large-space high-precision environment |
| CN203453134U (en) * | 2013-06-20 | 2014-02-26 | 广东美的环境电器制造有限公司 | Fan hood assembly and fan employing same |
| US8992293B1 (en) * | 2006-07-07 | 2015-03-31 | Kason Industries, Inc. | Ventilator |
| CN104976712A (en) * | 2014-04-14 | 2015-10-14 | 欣兴电子股份有限公司 | Air conditioner device |
| CN205908534U (en) * | 2016-08-17 | 2017-01-25 | 王达 | Front cover of fan |
| CN205956078U (en) * | 2016-08-29 | 2017-02-15 | 珠海格力电器股份有限公司 | Net cover and fan |
-
2016
- 2016-08-29 CN CN201610748442.3A patent/CN106122118A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2648135Y (en) * | 2003-08-21 | 2004-10-13 | 英业达股份有限公司 | Radiating mechanism |
| US8992293B1 (en) * | 2006-07-07 | 2015-03-31 | Kason Industries, Inc. | Ventilator |
| GB2468498A (en) * | 2009-03-11 | 2010-09-15 | Duncan Charles Thomson | Floor mounted mobile air circulator |
| CN102434952A (en) * | 2011-09-15 | 2012-05-02 | 广州约顿电子科技有限公司 | Method for solving problem of air supply uniformity in large-area large-space high-precision environment |
| CN203453134U (en) * | 2013-06-20 | 2014-02-26 | 广东美的环境电器制造有限公司 | Fan hood assembly and fan employing same |
| CN104976712A (en) * | 2014-04-14 | 2015-10-14 | 欣兴电子股份有限公司 | Air conditioner device |
| CN205908534U (en) * | 2016-08-17 | 2017-01-25 | 王达 | Front cover of fan |
| CN205956078U (en) * | 2016-08-29 | 2017-02-15 | 珠海格力电器股份有限公司 | Net cover and fan |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679258A (en) * | 2016-11-18 | 2017-05-17 | 广西大学 | Cold air cooling device |
| CN106368968A (en) * | 2016-11-23 | 2017-02-01 | 西南科技大学 | Self-cooling fan |
| CN108612673A (en) * | 2016-12-13 | 2018-10-02 | 宁波创润新材料有限公司 | Heat sink |
| CN107894084A (en) * | 2017-12-20 | 2018-04-10 | 珠海格力电器股份有限公司 | Air conditioner air outlet component and air conditioner |
| CN107894084B (en) * | 2017-12-20 | 2023-12-01 | 珠海格力电器股份有限公司 | Air conditioner air outlet component and air conditioner |
| CN108895003A (en) * | 2018-05-14 | 2018-11-27 | 云南林业职业技术学院 | Cooling fan and its industrial setting method |
| CN109664896A (en) * | 2018-12-28 | 2019-04-23 | 北京起重运输机械设计研究院有限公司 | A kind of suspended carriage and cableway system |
| CN110894930A (en) * | 2019-12-03 | 2020-03-20 | 西安电子科技大学芜湖研究院 | Antifog car lamps and lanterns of high-efficient heat dissipation |
| CN112032078A (en) * | 2020-07-29 | 2020-12-04 | 武汉大学 | Active high-efficient accuse temperature's efflux spray tube cooling system |
| CN112032078B (en) * | 2020-07-29 | 2021-09-03 | 武汉大学 | Active high-efficient accuse temperature's efflux spray tube cooling system |
| CN112692244A (en) * | 2020-11-27 | 2021-04-23 | 河北永洋特钢集团有限公司 | Steel ladle surface layer slag weight detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |
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| RJ01 | Rejection of invention patent application after publication |