CN101795547A - Flow control principle based reinforcement method and device capable of regulating natural convection - Google Patents

Flow control principle based reinforcement method and device capable of regulating natural convection Download PDF

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CN101795547A
CN101795547A CN200910312350A CN200910312350A CN101795547A CN 101795547 A CN101795547 A CN 101795547A CN 200910312350 A CN200910312350 A CN 200910312350A CN 200910312350 A CN200910312350 A CN 200910312350A CN 101795547 A CN101795547 A CN 101795547A
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air inlet
plate
rainproof
lower roof
cabinet
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CN101795547B (en
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王小华
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Abstract

The invention relates to a method and a device for solving the heat dissipation and the rain proofing of independently encapsulated electronic devices and automatic control devices and discloses flow control principle based reinforcement method and device capable of regulating natural convection. The method comprises the following steps of: A, flow organization in a case; B, the rainproof treatment of a heat dissipating channel; C, the rainproof treatment of an air inlet; D, the flow organization of the air inlet; and E, the meeting of the universal requirements of heating modules at different positions on accelerated heat dissipation. A top plate of the device comprises an upper top plate and a lower top plate; the part in which the upper top plate and the lower top plate are staggered up and down is provided with the heat dissipating channel and at least one air inlet; a gas-water separation device is arranged at the air inlet; a gas-water separation channel is formed; and a detachable sealing strip is mounted on the gas-water separation channel. In the invention, the requirements for reinforcing the heat dissipation and proofing water in the case can be met simultaneously, extra energy consumption is unnecessarily to increase, the flow of the heat fluid and the cold air in the case is organized, and the case can be universally used for encapsulating the heating modules of all layouts.

Description

Scalable free convection intensifying method and device based on flow control principle
Technical field
The present invention relates to solve electronic installation and the heat radiation of self-con-tained unit and the rainproof method and apparatus of individual packages, relate in particular to scalable free convection intensifying method and device based on flow control principle.
Utilize the free convection principle to solve the electronic installation of reinforcement individual packages and the heat radiation and the rainproof problem of self-con-tained unit, can directly apply to numerous areas such as electronics, building and machinery, device materials is not limit, available plastics or alloy etc.
Background technology
Modern electronics and automatic control equipment chip integration increase fast, and along with the variation of user's request, these have integrated chip or a plurality of functional module (control and actuator) power also has ever-increasing trend simultaneously.Under the condition that apparatus moduleization, function refinement and power increase, chip and even device are more and more higher to the requirement of heat radiation, and how under the condition of the little energy consumption of trying one's best (even zero energy consumption), high efficiency and heat radiation is a major issue of needing solution badly.
The method that tradition solves heat dissipation problem mainly is divided into three kinds: the 1) change of chip and device materials mainly is the application of heat proof material, strengthens the heat resistance of chip and device itself; 2) install cooling mechanism additional, as radiator etc., also more to heat eliminating medium simultaneously to the research of radiating efficiency influence; 3) set up fan.Under the condition of space permission, setting up fan is a kind of common enhance heat mode.In the reality, under the condition that fund allows, often adopt above-mentioned two or three method combined.
Install cooling mechanism additional and set up fan, require surrounding space to have suitable opening.If but device must open-air place, and chip or precision apparatus have a higher requirement to rainproof, and the cabinet that bears chip or device in other words requires higher sealing.Obviously, these two kinds of requirements are conflicting.Install cooling mechanism additional and set up fan, also need to consume suitable external energy (electric energy).In addition,, install cooling mechanism additional and the volume and weight of individual packages module will be increased, thereby cause installation difficulty and dual increase initial and that operation is invested, also be unfavorable for saving energy and reduce the cost with the mode of setting up fan along with the increase of chip or rating of set.Low energy consumption so, brand-new enhance heat and to have the mode of rainproof function independent or as householder method have suitable importance and higher use value for addressing this problem.
Summary of the invention
The present invention is directed to exist in the prior art can't satisfy cabinet enhance heat and rainproof requirement simultaneously, need the extra energy consumption that increases, the mobile of hot fluid in the casing and cold air do not organized, cabinet can not be common to the deficiency of the heating module of the various layouts of encapsulation, provide a kind of and can satisfy cabinet enhance heat and rainproof requirement simultaneously, need not additionally to increase energy consumption, the mobile of hot fluid in the casing and cold air organized, and cabinet can be common to the scalable free convection intensifying method and the device based on flow control principle of the heating module of the various layouts of encapsulation.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
Scalable free convection intensifying method based on flow control principle may further comprise the steps:
A. the flow organization in the cabinet:
Near the heating module in cabinet air inlet is set, at the cabinet top heat dissipation channel is set, the hot fluid that heating module produces flows from trend heat dissipation channel direction, cold air constantly is inhaled into from air inlet, the cold air flow that is inhaled into makes its direct cooling through heating module, and flowing naturally of quickening that hot fluid makes progress;
B. the rainproof treatment of heat dissipation channel:
Towards the cabinet rear, the upper plate on heat dissipation channel top and the lower roof plate of bottom all are inclined upwardly with heat dissipation channel outlet, the low oblique top in high both sides in the middle of forming, rainwater along the inclined-plane spontaneous current to front panel and rear board;
C. the rainproof treatment of air inlet:
The gas-water separation passage of bending is set at the air inlet place, and cold air flow is through gas-water separation channel change flow direction, and the tiny raindrop in the cold air are by inertial separation;
D. the flow organization of air inlet:
The gas-water separation passage of air inlet inboard is set to adjustable-angle, and adjusting angle makes the flow direction of cold air quicken heat radiation over against heating module;
E. satisfy the general requirment that the diverse location heating module quickens heat radiation:
In cabinet bottom and sidepiece air inlet is set all, and loads onto dismountable sealing strip, make cabinet can be common to the heating module that the encapsulation diverse location is arranged at the air inlet place.
At enhance heat and the rainproof contradiction requirement that cabinet is proposed, and be prerequisite with the low energy consumption, be final purpose of the present invention the useful life that further prolongs package module.The starting point of the present invention research is to utilize heating module such as chip can form the feature of natural convection air, around heating modules such as chip, form the flow field that continues convection current, the constantly spontaneous cold air of from surrounding environment, introducing, and in time take the heat that distributes out of chassis space, thereby provide good working environment for package module.Simultaneously, make full use of the minimum drag principle that fluid flows, finish the rainproof function of cabinet.
The actuating force of free convection is because temperature gradient exists, and causes the density variation of fluid media (medium), flows thereby produce, and there is the trend that upwards flows automatically in hot fluid.One of starting point of the present invention is exactly to make full use of this heat to drive, and according to the basic orientation of appointment, cabinet is discharged in the outlet of hot fluid slave upper box part in cabinet, and cold air is introduced from the bottom (or both sides) of cabinet.The particular location of heating module in practice in the different package modules, may need to adjust according to the condition of installing, concrete installation site is set at the scene, so the air flow inlet of outer cabinet bottom or both sides is set at adjustable form, position with thermal source is reference, selects corresponding aperture position for use.Burn package modules such as chip simultaneously in order to prevent raindrop from being induced the inflow cabinet to cause short stream, suitable gas and water separator is set, water droplet is separated at the air flow inlet place that sets by air-flow.For preventing that rainwater from flowing into cabinet from upper opening, at cabinet upper board face design grade and sluicing groove, prevents cabinet upper board area water.The upper board face of having set gradient simultaneously can play guide functions, further helps effluxing of hot fluid, thereby will dispel the heat and rainproof function fully combines.
Scalable free convection intensifying device based on flow control principle comprises cabinet, and cabinet comprises front panel, rear board, left plate, right plate, base plate and top board,
The front panel upper end is higher than the rear board upper end;
Top board comprises upper plate and lower roof plate, and the upper plate front end links to each other with front panel, and the upper plate rear end is higher than the upper plate front end, and the upper plate rear end is connected with rainproof baffle plate, and rainproof baffle plate is downward-sloping to form angle with upper plate; The lower roof plate rear end links to each other with rear board, the lower roof plate front end is higher than the lower roof plate rear end, the lower roof plate front end upwards bends up, the outer surface that bends up portion and lower roof plate forms water-blocking groove, the portion that bends up is connected with the inner surface circular arc of lower roof plate, the lower roof plate front end extends to the upper plate below, and the staggered up and down part of lower roof plate and upper plate forms heat dissipation channel;
Base plate or left plate or right plate are provided with at least one air inlet, perhaps be equipped with air inlet on base plate, left plate and the right plate, the air inlet place is provided with gas and water separator, gas and water separator comprises baffler and rainproof air inlet guide plate, baffler is connected in the air inlet inboard, rainproof air inlet guide plate is connected in the air inlet outside, rainproof air inlet guide plate tilts to the left or to the right and baffler forms angle, two bafflers and two rainproof air inlet guide plates form the gas-water separation passage, and dismountable sealing strip is housed on the gas-water separation passage.
The gradient design for tilting of upper plate and lower roof plate can suitably be regulated the angle of inclination according to the feature of each department rainfall, and the effect of gradient design is mainly reflected in two aspects, one, and gas can be derived cabinet with thermal current fast by reducing; Its two, rainwater can be drained along the slope.Wherein upper plate is to design under the good prerequisite of function panel self seal at the hypothesis front panel, and the front panel of existing design should have good rainproof function.
Whole cabinet can be made whole or respectively, if but make respectively then the water-resistant performance of seam crossing should be good.
The Front-end Design of lower roof plate has the portion that bends up upwards, and this function that bends up portion also is divided into two parts: at first, its inner arc transition can play the effect of local rectifying, reduces local resistance; Secondly, its design form of raising can prevent that rainwater from pouring into cabinet.
Dismountable sealing strip is optionally opened, and purpose is to guarantee cold air entry site and the abundant heat-shift of thermal source, does not all open, and guarantees certain aperture area, so that keep higher air velocity under limited actuating force condition.The form of sealing strip and material can be made suitable adjustment as required, and effect is by its opening and closing of fault, reach cold air and directly impact heating module, improve the efficient of heat radiation.
The design starting point of rainproof air inlet guide plate is because the suction sphere of action of air inlet is limited, increases rainproof air inlet guide plate ambient cold air is carried out induction, improves the suction efficiency of cold air.Simultaneously, because the change of airflow direction can be carried out inertial separation with the tiny raindrop of following air-flow, prevent the importing of rainwater with air-flow.
As preferably, baffler is articulated in the air inlet inboard.
The gas-water separation passage of air inlet inboard is set to adjustable-angle, and adjusting angle makes the flow direction of cold air quicken heat radiation over against heating module, and cold air can directly impact heating module, improves the efficient of heat radiation.
As preferably, rainproof air inlet guide plate is articulated in the air inlet outside.
The gas-water separation passage in the air inlet outside is set to adjustable-angle, according to the angle of how much regulating the gas-water separation passage of the moisture in the cold air, makes the gas-water separation effect that reaches best.
As preferably, the height of rear board is 1/2 to 4/5 of a front panel height.
This difference in height is easy to upper plate and lower roof plate forms the slope, thereby makes thermal current will derive cabinet fast by reducing, and rainwater is drained along the slope fast.
As preferably, the angle of upper plate and front panel is the 100-150 degree, and the angle of lower roof plate and rear board is the 100-150 degree.
This gradient can make thermal current will derive cabinet fast by reducing, and rainwater is drained along the slope fast.
As preferably, the distance that the lower roof plate front end stretches into upper plate is the 1/5-1/2 of upper plate length.
This width of heat dissipation channel can make thermal current will derive cabinet fast by reducing.
As preferably, air inlet is uniformly distributed in base plate or left plate or right plate or base plate, left plate and right plate.
Air inlet evenly distributes, and has improved the versatility of cabinet greatly, can satisfy the general requirment that the diverse location heating module quickens heat radiation.
As preferably, the angle of rainproof air inlet guide plate and baffler is the 100-170 degree.
This angle makes the gas-water separation passage of formation be easier to gas-water separation, and the change of airflow direction can be carried out inertial separation with the tiny raindrop of following air-flow, prevents the importing of rainwater with air-flow.
As preferably, two bafflers are parallel to each other, and two rainproof air inlet guide plates are parallel to each other, and the sealing strip cross section is " T " font.
Parallel setting makes fluid velocity more stable.Sealing strip simple in structure is easy to dismounting.Sealing strip adopts elastomeric material, can adjust according to the environment of reality in the practical application, and purpose is the double shield of cocurrent flow position and area.
Design concept of the present invention can be used for all needs overall package external, the heat sinking function module, can under the not high situation of power, independently use, also can be used as the schedule of reinforcement of blower fan and fin, be used for engineering fields such as information and automation, also can directly extend to relevant engineering field, form serves as that transform according to the design's principle on the basis with the existing shell in individual field.
According to technical scheme of the present invention, can satisfy cabinet enhance heat and rainproof requirement simultaneously, need not additionally to increase energy consumption, the mobile of hot fluid in the casing and cold air to be organized, cabinet can be common to the heating module of the various layouts of encapsulation.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the I portion enlarged diagram of Fig. 2.
Fig. 4 is the structural representation of the embodiment of the invention 2.
Fig. 5 is the II portion enlarged diagram of Fig. 4.
Fig. 6 is the structural representation of sealing strip.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
Embodiment 1
Scalable free convection intensifying method based on flow control principle may further comprise the steps:
A. the flow organization in the cabinet:
Near the heating module 16 in cabinet air inlet 11 is set, at the cabinet top heat dissipation channel 10 is set, the hot fluid that heating module 16 produces flows from trend heat dissipation channel 10 directions, cold air constantly is inhaled into from air inlet 11, the cold air flow that is inhaled into makes its direct cooling through heating module 16, and flowing naturally of quickening that hot fluid makes progress;
B. the rainproof treatment of heat dissipation channel 10:
Towards the cabinet rear, the upper plate 6 on heat dissipation channel 10 tops and the lower roof plate 7 of bottom all are inclined upwardly with heat dissipation channel 10 outlet, the low oblique top in high both sides in the middle of forming, rainwater along the inclined-plane spontaneous current to front panel 1 and rear board 2;
C. the rainproof treatment of air inlet 11:
The gas-water separation passage 15 of bending is set at air inlet 11 places, and cold air flow changes flow direction through gas-water separation passage 15, and the tiny raindrop in the cold air are by inertial separation;
D. the flow organization of air inlet 11:
The gas-water separation passage 15 of air inlet 11 inboards is set to adjustable-angle, and adjusting angle makes the flow direction of cold air quicken heat radiation over against heating module 16;
E. satisfy the general requirment that diverse location heating module 16 quickens heat radiation:
In cabinet bottom and sidepiece air inlet 11 is set all, and loads onto dismountable sealing strip 14, make cabinet can be common to the heating module 16 that the encapsulation diverse location is arranged at air inlet 11 places.
Scalable free convection intensifying device based on flow control principle comprises cabinet, and cabinet comprises front panel 1, rear board 2, left plate 3, right plate 4, base plate 5 and top board,
Front panel 1 upper end is higher than rear board 2 upper ends;
Top board comprises upper plate 6 and lower roof plate 7, and upper plate 6 front ends link to each other with front panel 1, and upper plate 6 rear ends are higher than upper plate 6 front ends, and upper plate 6 rear ends are connected with rainproof baffle plate 8, rainproof baffle plate 8 downward-sloping and upper plate 6 formation angles; Lower roof plate 7 rear ends link to each other with rear board 2, lower roof plate 7 front ends are higher than lower roof plate 7 rear ends, lower roof plate 7 front ends upwards bend up, the outer surface 71 that bends up portion 9 and lower roof plate 7 forms water-blocking grooves 91, bending up portion 9 is connected with inner surface 72 circular arcs of lower roof plate 7, lower roof plate 7 front ends extend to upper plate 6 belows, lower roof plate 7 and the staggered up and down part formation heat dissipation channel 10 of upper plate 6;
Be equipped with air inlet 11 on base plate 5, left plate 3 and the right plate 4, air inlet 11 places are provided with gas and water separator, gas and water separator comprises baffler 12 and rainproof air inlet guide plate 13, baffler 12 is connected in air inlet 11 inboards, rainproof air inlet guide plate 13 is connected in air inlet 11 outsides, rainproof air inlet guide plate 13 tilts to the left or to the right and baffler 12 forms angle, two bafflers 12 and two rainproof air inlet guide plates 13 form gas-water separation passage 15, and dismountable sealing strip 14 is housed on the gas-water separation passage 15.
The height of rear board 2 is 1/3 of front panel 1 height.
Upper plate 6 is 120 degree with the angle of front panel 1, and lower roof plate 7 is 115 degree with the angle of rear board 2.
The distance that lower roof plate 7 front ends stretch into upper plate 6 is 1/3 of upper plate 6 length.
Air inlet 11 is uniformly distributed in base plate 5, left plate 3 and right plate 4.
Rainproof air inlet guide plate 13 is 145 degree with the angle of baffler 12.
Two bafflers 12 are parallel to each other, and two rainproof air inlet guide plates 13 are parallel to each other, and sealing strip 14 cross sections are " T " font.
Embodiment 2
Scalable free convection intensifying method based on flow control principle may further comprise the steps:
A. the flow organization in the cabinet:
Near the heating module 16 in cabinet air inlet 11 is set, at the cabinet top heat dissipation channel 10 is set, the hot fluid that heating module 16 produces flows from trend heat dissipation channel 10 directions, cold air constantly is inhaled into from air inlet 11, the cold air flow that is inhaled into makes its direct cooling through heating module 16, and flowing naturally of quickening that hot fluid makes progress;
B. the rainproof treatment of heat dissipation channel 10:
Towards the cabinet rear, the upper plate 6 on heat dissipation channel 10 tops and the lower roof plate 7 of bottom all are inclined upwardly with heat dissipation channel 10 outlet, the low oblique top in high both sides in the middle of forming, rainwater along the inclined-plane spontaneous current to front panel 1 and rear board 2;
C. the rainproof treatment of air inlet 11:
The gas-water separation passage 15 of bending is set at air inlet 11 places, and cold air flow changes flow direction through gas-water separation passage 15, and the tiny raindrop in the cold air are by inertial separation;
D. the flow organization of air inlet 11:
The gas-water separation passage 15 of air inlet 11 inboards is set to adjustable-angle, and adjusting angle makes the flow direction of cold air quicken heat radiation over against heating module 16;
E. satisfy the general requirment that diverse location heating module 16 quickens heat radiation:
In cabinet bottom and sidepiece air inlet 11 is set all, and loads onto dismountable sealing strip 14, make cabinet can be common to the heating module 16 that the encapsulation diverse location is arranged at air inlet 11 places.
Scalable free convection intensifying device based on flow control principle comprises cabinet, and cabinet comprises front panel 1, rear board 2, left plate 3, right plate 4, base plate 5 and top board,
Front panel 1 upper end is higher than rear board 2 upper ends;
Top board comprises upper plate 6 and lower roof plate 7, and upper plate 6 front ends link to each other with front panel 1, and upper plate 6 rear ends are higher than upper plate 6 front ends, and upper plate 6 rear ends are connected with rainproof baffle plate 8, rainproof baffle plate 8 downward-sloping and upper plate 6 formation angles; Lower roof plate 7 rear ends link to each other with rear board 2, lower roof plate 7 front ends are higher than lower roof plate 7 rear ends, lower roof plate 7 front ends upwards bend up, the outer surface 71 that bends up portion 9 and lower roof plate 7 forms water-blocking grooves 91, bending up portion 9 is connected with inner surface 72 circular arcs of lower roof plate 7, lower roof plate 7 front ends extend to upper plate 6 belows, lower roof plate 7 and the staggered up and down part formation heat dissipation channel 10 of upper plate 6;
Base plate 5 is provided with at least one air inlet 11, air inlet 11 places are provided with gas and water separator, gas and water separator comprises baffler 12 and rainproof air inlet guide plate 13, baffler 12 is connected in air inlet 11 inboards, rainproof air inlet guide plate 13 is connected in air inlet 11 outsides, rainproof air inlet guide plate 13 tilts to the left or to the right and baffler 12 forms angle, and two bafflers 12 and two rainproof air inlet guide plates 13 form gas-water separation passage 15, and dismountable sealing strip 14 is housed on the gas-water separation passage 15.
Baffler 12 is articulated in air inlet 11 inboards.
Rainproof air inlet guide plate 13 is articulated in air inlet 11 outsides.
The height of rear board 2 is 1/4 of front panel 1 height.
Upper plate 6 is 125 degree with the angle of front panel 1, and lower roof plate 7 is 120 degree with the angle of rear board 2.
The distance that lower roof plate 7 front ends stretch into upper plate 6 is 1/4 of upper plate 6 length.
Air inlet 11 is uniformly distributed in base plate 5.
Rainproof air inlet guide plate 13 is 150 degree with the angle of baffler 12.
Two bafflers 12 are parallel to each other, and two rainproof air inlet guide plates 13 are parallel to each other, and sealing strip 14 cross sections are " T " font.
In a word, the above only is preferred embodiment of the present invention, and all equalizations of being done according to the present patent application claim change and modify, and all should belong to the covering scope of patent of the present invention.

Claims (10)

1. based on the scalable free convection intensifying method of flow control principle, it is characterized in that: may further comprise the steps:
A. the flow organization in the cabinet:
Air inlet (11) is set near the heating module in cabinet (16), heat dissipation channel (10) is set at the cabinet top, the hot fluid that heating module (16) produces flows from trend heat dissipation channel (10) direction, cold air constantly is inhaled into from air inlet (11), the cold air flow that is inhaled into makes its direct cooling through heating module (16), and flowing naturally of quickening that hot fluid makes progress;
B. the rainproof treatment of heat dissipation channel (10):
Towards the cabinet rear, the upper plate (6) on heat dissipation channel (10) top and the lower roof plate (7) of bottom all are inclined upwardly with heat dissipation channel (10) outlet, form the low oblique top in high both sides, centre, rainwater along the inclined-plane spontaneous current to front panel (1) and rear board (2);
C. the rainproof treatment of air inlet (11):
Locate to be provided with the gas-water separation passage (15) of bending at air inlet (11), cold air flow changes flow direction through gas-water separation passage (15), and the tiny raindrop in the cold air are by inertial separation;
D. the flow organization of air inlet (11):
The gas-water separation passage (15) that air inlet (11) is inboard is set to adjustable-angle, and adjusting angle makes the flow direction of cold air quicken heat radiation over against heating module (16);
E. satisfy the general requirment that diverse location heating module (16) quickens heat radiation:
In cabinet bottom and sidepiece air inlet (11) is set all, and locates to load onto dismountable sealing strip (14), make cabinet can be common to the heating module (16) that the encapsulation diverse location is arranged at air inlet (11).
2. based on the scalable free convection intensifying device of flow control principle, comprise cabinet, cabinet comprises front panel (1), rear board (2), left plate (3), right plate (4), base plate (5) and top board, it is characterized in that:
Front panel (1) upper end is higher than rear board (2) upper end;
Top board comprises upper plate (6) and lower roof plate (7), upper plate (6) front end links to each other with front panel (1), upper plate (6) rear end is higher than upper plate (6) front end, and upper plate (6) rear end is connected with rainproof baffle plate (8), and rainproof baffle plate (8) is downward-sloping to form angle with upper plate (6); Lower roof plate (7) rear end links to each other with rear board (2), lower roof plate (7) front end is higher than lower roof plate (7) rear end, lower roof plate (7) front end upwards bends up, the outer surface (71) that bends up portion (9) and lower roof plate (7) forms water-blocking groove (91), bending up portion (9) is connected with inner surface (72) circular arc of lower roof plate (7), lower roof plate (7) front end extends to upper plate (6) below, lower roof plate (7) and the staggered up and down part formation heat dissipation channel (10) of upper plate (6);
Base plate (5) or left plate (3) or right plate (4) are provided with at least one air inlet (11), perhaps base plate (5), be equipped with air inlet (11) on left plate (3) and the right plate (4), air inlet (11) locates to be provided with gas and water separator, gas and water separator comprises baffler (12) and rainproof air inlet guide plate (13), baffler (12) is connected in air inlet (11) inboard, rainproof air inlet guide plate (13) is connected in air inlet (11) outside, rainproof air inlet guide plate (13) tilts to the left or to the right and baffler (12) forms angle, two bafflers (12) form gas-water separation passage (15) with two rainproof air inlet guide plates (13), and dismountable sealing strip (14) is housed on the gas-water separation passage (15).
3. according to the described scalable free convection intensifying device based on flow control principle of claim 2, it is characterized in that: baffler (12) is articulated in air inlet (11) inboard.
4. according to the described scalable free convection intensifying device based on flow control principle of claim 2, it is characterized in that: rainproof air inlet guide plate (13) is articulated in air inlet (11) outside.
5. according to claim 2 or 3 or 4 described scalable free convection intensifying devices based on flow control principle, it is characterized in that: the height of rear board (2) is 1/2 to 4/5 of front panel (a 1) height.
6. according to claim 2 or 3 or 4 described scalable free convection intensifying devices based on flow control principle, it is characterized in that: upper plate (6) is the 100-150 degree with the angle of front panel (1), and lower roof plate (7) is the 100-150 degree with the angle of rear board (2).
7. according to claim 2 or 3 or 4 described scalable free convection intensifying devices based on flow control principle, it is characterized in that: the distance that lower roof plate (7) front end stretches into upper plate (6) is the 1/5-1/2 of upper plate (6) length.
8. according to claim 2 or 3 or 4 described scalable free convection intensifying devices based on flow control principle, it is characterized in that: air inlet (11) is uniformly distributed in base plate (5) or left plate (3) or right plate (4) or base plate (5), left plate (3) and right plate (4).
9. according to claim 2 or 3 or 4 described scalable free convection intensifying devices based on flow control principle, it is characterized in that: rainproof air inlet guide plate (13) is the 100-170 degree with the angle of baffler (12).
10. according to claim 2 or 3 or 4 described scalable free convection intensifying devices based on flow control principle, it is characterized in that: two bafflers (12) are parallel to each other, two rainproof air inlet guide plates (13) are parallel to each other, and sealing strip (14) cross section is " T " font.
CN2009103123500A 2009-12-28 2009-12-28 Flow control principle based reinforcement method and device capable of regulating natural convection Expired - Fee Related CN101795547B (en)

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CN103987221A (en) * 2014-05-22 2014-08-13 苏州天脉导热科技有限公司 Waterproof protection device
CN112055514A (en) * 2020-09-07 2020-12-08 上海电气集团股份有限公司 Uniform heat dissipation system
CN113315006A (en) * 2021-06-17 2021-08-27 邵慧艳 Power distribution cabinet with bottom air supply and heat dissipation method

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Publication number Priority date Publication date Assignee Title
JP4193676B2 (en) * 2003-11-06 2008-12-10 株式会社明電舎 Waterproof ventilation structure for electronic equipment
CN2824516Y (en) * 2005-08-29 2006-10-04 廉纪奎 Self-heat exchange water-proof apparatus cabinet

Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN103987221A (en) * 2014-05-22 2014-08-13 苏州天脉导热科技有限公司 Waterproof protection device
CN112055514A (en) * 2020-09-07 2020-12-08 上海电气集团股份有限公司 Uniform heat dissipation system
CN113315006A (en) * 2021-06-17 2021-08-27 邵慧艳 Power distribution cabinet with bottom air supply and heat dissipation method
CN113315006B (en) * 2021-06-17 2023-11-24 宝鸡市科威尔电器有限公司 Power distribution cabinet with bottom air supply function and heat dissipation method

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