CN205956078U - Screen panel and fan - Google Patents

Screen panel and fan Download PDF

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Publication number
CN205956078U
CN205956078U CN201620976567.7U CN201620976567U CN205956078U CN 205956078 U CN205956078 U CN 205956078U CN 201620976567 U CN201620976567 U CN 201620976567U CN 205956078 U CN205956078 U CN 205956078U
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China
Prior art keywords
air
fan
guard
area
outlet
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CN201620976567.7U
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Chinese (zh)
Inventor
李彬
王�琦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201620976567.7U priority Critical patent/CN205956078U/en
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Abstract

The utility model relates to a screen panel and fan, wherein the screen panel includes a plurality of ventilation hole (1), ventilation hole (1) is equipped with air inlet end (2) and air -out end (3), the cross sectional area of air inlet end (2) is greater than the cross sectional area of air -out end (3). The utility model discloses a set up a plurality of ventilation holes on the screen panel to make the cross sectional area of the air inlet end in ventilation hole be greater than the cross sectional area of air -out end, the hole that ventilates has so just formed structure of necking, and according to can the reduce expenditure principle of cooling of throat, the air current reduces in temperature behind the ventilation hole, has strengthened air -out and heat transfer effect by between the cooling object, adorns the screen panel heat exchange effect who is favorable to promoting the fan on the fan.

Description

Guard and fan
Technical field
The utility model is related to technical field of electric appliances, more particularly, to a kind of guard and fan.
Background technology
Electric fan abbreviation electric fan, also referred to as fan, ventilating fan, are that one kind is rotated using motor-driven flabellum, to reach 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 fan head, fan blade, the part such as guard and control device, and its middle fan head includes motor, in front and back End cap and wind pushing mechanism etc. of shaking the head.Its operation principle is:Hot-wire coil in motor in magnetic field stress and rotate, by electric energy Being converted into mechanical energy, thus rotate by fan blade strengthening cross-ventilation, taking away the heat on body surface.But, with object table The air that face carries out heat exchange is normal temperature all the time, and heat exchange effect is limited.
Utility model content
The purpose of this utility model is to propose a kind of guard and fan, to lift the heat exchange effect of prior art wind fan Really.
For achieving the above object, the utility model provides a kind of guard, and including multiple air vents, described air vent is provided with Air intake 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 and the ratio of the cross-sectional area of described outlet air end are 3:1.
Further, the circular in cross-section of the cross section of described air intake and/or described outlet air end.
For achieving the above object, the utility model additionally provides 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 on the air outlet of described fan.
Based on technique scheme, the utility model passes through to arrange multiple air vents on guard, and makes air vent Air intake cross-sectional area be more than outlet air end cross-sectional area, such air vent just defines throat structure, according to contracting Mouth can throttle the principle of cooling, and air-flow reduces in temperature after air vent, enhances between air-out and object to be cooled Heat transfer effect, guard is contained in the heat exchange effect being conducive to lifting fan on fan.
Brief description
Accompanying drawing described herein is used for providing further understanding to of the present utility model, constitutes the part of the application, Schematic description and description of the present utility model is used for explaining the utility model, does not constitute to of the present utility model improper Limit.In the accompanying drawings:
Fig. 1 is the structural representation of one embodiment of the utility model guard.
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 the utility model guard.
Fig. 5 is the sectional view of air vent in another embodiment of the utility model guard.
Fig. 6 is the sectional view of air vent in another embodiment of the utility model guard.
In figure:1- air vent, 2- air intake, 3- outlet air end.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in embodiment is carried out clear, complete Ground description.Obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments. Based on embodiment of the present utility model, the institute that those of ordinary skill in the art are obtained under the premise of not making creative work There is other embodiment, broadly fall into the scope of the utility model protection.
In description of the present utility model it is to be understood that term " " center ", " horizontal ", " longitudinal ", "front", "rear", "left", "right", " on ", D score, " vertical ", " level ", " top ", " bottom ", " interior ", the orientation of 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 description the utility model and simplifies description, rather than instruction Or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, be not therefore understood that It is the restriction to the utility model protection domain.
As shown in figure 1, the utility model proposes a kind of guard, this guard is provided with multiple air vents 1, described air vent 1 It 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, Cross section is meant that along the section with the direction cutting of the central axis of air vent 1.
By multiple air vents 1 are arranged 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 be throttled according to necking, 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 On be conducive to lifted fan heat exchange effect.
Can the throttle principle of cooling of necking is specially:As shown in figure 3, air-flow A enters air vent 1 from air intake 2, pass through Puff away after throat structure stream B, and the flow velocity with respect to air-flow A for the air-flow B increases, and pressure reduces, water in air-flow B after pressure reduction The evaporating temperature of steam reduces, and the heat being absorbed during steam gasification in such air-flow B will compare many, so that bringing about the desired sensation The temperature of stream B is also relatively lower than air-flow A, therefore increases heat transfer temperature difference, can bring more preferable heat transfer effect.
Can be seen that from Fig. 1 and Fig. 2, this guard is actually a very thin cover body structure, is adapted for mount on any air-out Mouth or air inlet, to lower the temperature to 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 preferably, and round-shaped Advantageously ensure that the stability of air-flow.In other embodiments, the global shape of guard can also square, rectangle, ellipse Circle etc..
In a preferred embodiment of the utility model guard, 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 can make airflow more steady, and minimizing is not smooth due to wall And the flow perturbation causing, reduce wind loss, reduce the noise caused by flow perturbation.
In the above-described embodiments, smoothly transit during the internal face only defining air vent 1, not the horizontal stroke to air vent 1 Area of section is defined from described air intake 2 to the variation tendency of described outlet air end 3, and its variation tendency may be as Fig. 3 or Fig. 5 Shown is gradual change;It is likely to, as shown in figure 4, first gradual change, then keep constant again;It is also possible that first keep constant, more gradually Become;Or as shown in fig. 6, first gradual change, then keep constant, then gradual change etc..
In another preferred embodiment of the utility model guard, the cross-sectional area of described air vent 1 from described enter Wind end 2 is tapered to described outlet air end 3.Tapered version can make through this air vent 1 air-flow cooling-down effect more Plus substantially, heat transfer effect is more preferably.
In this embodiment, the cross-sectional area only defining air vent 1 is from described air intake 2 to described outlet air end 3 Variation tendency, and do not limit whether air vent 1 internal face is to smoothly transit.Wherein, tapered concrete form also have multiple, than As shown in figure 3, the cross-sectional area of described air vent 1 linearly changes from described air intake 2 to described outlet air end 3;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 the utility model guard, the cross-sectional area of described air vent 1 from described enter Wind end 2 is tapered to described outlet air end 3, and the internal face of described air vent 1 from described air intake 2 to described outlet air end 3 Smoothly transit.This embodiment combines the advantage of above-mentioned two embodiment, can either reach preferable heat transfer effect, can subtract again Few flow perturbation, reduces noise and windage loss.
Preferably, the cross-sectional area of described air intake 2 and the ratio of the cross-sectional area of described outlet air end 3 are 3:1.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 causes 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 too little, 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, air-out will not be impacted again.
In addition, the cross section of the cross section of described air intake 2 and/or described outlet air end 3 be preferably but not limited to rounded, Air-out so can be made more smooth, be conducive to the stability of air-flow.
Specifically, the cross sectional dimensions of the cross sectional dimensions of air intake 2 and 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, just do not interfere with again Often air-out, and it is applied 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 equipments, industrial equipment etc. and utilizes air naturally right In the device of stream or other gas flow pattern, to lift 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 When, the gas flow temperature experienced is no longer identical with environment temperature, but lower than environment 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 Front reduce temperature;The air outlet of fan can also be arranged on, so that realizing in outlet through the air-flow that passing through fan promotes Temperature reduces.
By the explanation of the multiple embodiments to the utility model guard and fan it can be seen that the utility model guard and Fan embodiment is designed by necking, and the air flowing through is carried out with throttling cooling, makes electric fan leaving air temp be less than EAT, Thus the heat transfer temperature difference between increase air and object to be cooled, to lift heat transfer effect.
Finally it should be noted that:Above example is only in order to illustrate the technical solution of the utility model rather than it is limited System;Although being described in detail to the utility model with reference to preferred embodiment, those of ordinary skill in the art should Understand:Still specific embodiment of the present utility model can be modified or some technical characteristics are carried out with equivalent replacing Change;Without deviating from the spirit of technical solutions of the utility model, it all should cover the technical scheme being claimed in the utility model In the middle of scope.

Claims (10)

1. it is characterised in that including multiple air vents (1), described air vent (1) is provided with air intake (2) and air-out to a kind of guard End (3), the cross-sectional area of described air intake (2) is more than the cross-sectional area of described outlet air end (3).
2. guard according to claim 1 is 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).
3. guard according to claim 1 is 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.
4. guard according to claim 3 is it is characterised in that the cross-sectional area of described air vent (1) is from described air intake End (2) changes to described outlet air end (3) is linear.
5. guard according to claim 1 is 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.
6. guard according to claim 1 is 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 at end (3) is 3:1.
7. guard according to claim 1 is 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 kind of fan is it is characterised in that include the guard as described in any one of claim 1~7.
9. fan according to claim 8 is it is characterised in that described guard is arranged on the air inlet of described fan.
10. fan according to claim 8 is it is characterised in that described guard is arranged on the air outlet of described fan.
CN201620976567.7U 2016-08-29 2016-08-29 Screen panel and fan Active CN205956078U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620976567.7U CN205956078U (en) 2016-08-29 2016-08-29 Screen panel and fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620976567.7U CN205956078U (en) 2016-08-29 2016-08-29 Screen panel and fan

Publications (1)

Publication Number Publication Date
CN205956078U true CN205956078U (en) 2017-02-15

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CN201620976567.7U Active CN205956078U (en) 2016-08-29 2016-08-29 Screen panel and fan

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106122118A (en) * 2016-08-29 2016-11-16 珠海格力电器股份有限公司 Guard and fan
CN106440923A (en) * 2016-10-19 2017-02-22 珠海格力电器股份有限公司 Device for improving heat exchange efficiency of condenser and heat exchange equipment and air conditioner
WO2018205310A1 (en) * 2017-05-11 2018-11-15 孙文郁 Multi-hole fan rear cover and front cover, fan cover consisting of same and fan consisting of same
CN108917034A (en) * 2018-07-11 2018-11-30 怀宁县鑫盛制冷设备有限公司 A kind of novel air-conditioning outdoor unit radiator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106122118A (en) * 2016-08-29 2016-11-16 珠海格力电器股份有限公司 Guard and fan
CN106440923A (en) * 2016-10-19 2017-02-22 珠海格力电器股份有限公司 Device for improving heat exchange efficiency of condenser and heat exchange equipment and air conditioner
WO2018205310A1 (en) * 2017-05-11 2018-11-15 孙文郁 Multi-hole fan rear cover and front cover, fan cover consisting of same and fan consisting of same
CN108917034A (en) * 2018-07-11 2018-11-30 怀宁县鑫盛制冷设备有限公司 A kind of novel air-conditioning outdoor unit radiator

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