CN109548364A - A kind of radiator and its application - Google Patents
A kind of radiator and its application Download PDFInfo
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- CN109548364A CN109548364A CN201811280723.6A CN201811280723A CN109548364A CN 109548364 A CN109548364 A CN 109548364A CN 201811280723 A CN201811280723 A CN 201811280723A CN 109548364 A CN109548364 A CN 109548364A
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- working medium
- fin
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- angle
- radiator
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a kind of radiator and its applications, belong to small space heat elimination technical field.Described device includes cover board, bottom plate and the jet stream orifice plate between the cover board and bottom plate, the first cavity is formed between the cover board and the jet stream orifice plate, the second cavity is formed between the bottom plate and the jet stream orifice plate, the cover board is equipped with working medium entrances, sender property outlet is equipped at position on the bottom plate far from the working medium entrances, the jet stream orifice plate is equipped with jet stream hole array, the bottom plate is equipped with fin array, there is not the angle for being 90 ° between perpendicular where the fin and the working medium entrances and sender property outlet line, and the angle for being located at each fin of same column is acute angle or is obtuse angle, it is acute angle that the angle one positioned at the fin of adjacent two column, which is one, obtuse angle,.Present invention enhances the disturbances between working medium, improve heat exchange efficiency.
Description
Technical field
The present invention relates to a kind of radiator and its applications, belong to small space heat elimination technical field.
Background technique
With the rapid development of electronic technology, the raising of power and the reduction of volume, so that calorific value is anxious on unit area
Increase severely and adds, and can the reliability of electronic equipment will decline with the raising of temperature, effectively become limitation electronics skill by heat rejection and removal
One ring of key of art development.In addition in microwave and laser field, due to operating power requirements continuous improvement and microwave, laser
The low reason of system own efficiency, has a large amount of waste heat to need dissipation, and otherwise the accumulation of heat will lead to equipment damage.Exist simultaneously
Since integrated level is higher in electronic equipment and microwave, laser system, for the narrow space of heat dissipation, radiator is proposed non-
Often high requirement.In order to ensure that above equipment is safely and steadily run, radiator is needed to radiate for it, and be applied to above-mentioned set
Standby radiator must have the features such as compact-sized, small in size, heat exchange efficiency is high, thermal resistance is small and flow resistance is small.
Currently, the radiator for being usually used in above equipment has microchannel heat sink, jet stream cooling device etc..Due to microchannel
Along Working fluid flow direction thermal boundary layer progressive additive in radiator, Temperature of Working is gradually increasing, and be will lead to sender property outlet and is nearby changed
Thermal effect deteriorates；And what the heat transfer effect of jet stream cooling device there are flow resistances big, jet stream stationary point external position deteriorated rapidly
Disadvantage.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of radiator and its application, the radiators
The disturbance between working medium is strengthened, heat exchange efficiency is improved.
For achieving the above object, the invention provides the following technical scheme:
A kind of radiator, including cover board, bottom plate and the jet stream orifice plate between the cover board and bottom plate, the cover board
The first cavity is formed between the jet stream orifice plate, and the second cavity, the lid are formed between the bottom plate and the jet stream orifice plate
Plate is equipped with working medium entrances, is equipped with sender property outlet, the jet stream orifice plate at the position far from the working medium entrances on the bottom plate
It is equipped with jet stream hole array, the bottom plate is equipped with fin array, the fin and the working medium entrances and sender property outlet line
There is not the angle for being 90 °, and the angle for being located at each fin of same column is acute angle between the perpendicular at place
Or be obtuse angle, it is acute angle that the angle one positioned at the fin of adjacent two column, which is one, obtuse angle,.
In an alternative embodiment, in the fin array, each column are perpendicular to the working medium entrances and sender property outlet line
The perpendicular at place, each row are parallel to the perpendicular.
In an alternative embodiment, in the jet stream hole array, each column connect perpendicular to the working medium entrances and sender property outlet
Perpendicular where line, each row are parallel to the perpendicular.
In an alternative embodiment, fin described in every row is located between jet hole described in two adjacent rows, rib described in each column
Piece is located between the two adjacent column jet holes.
In an alternative embodiment, the jet hole aperture at the working medium entrances position is greater than to be gone out close to the working medium
The aperture of jet hole at mouth position.
In an alternative embodiment, the decreasing pore size of jet hole described in every row.
In an alternative embodiment, perpendicular where the fin and the working medium entrances and sender property outlet line it
Between angle be 30-60 ° or 120-150 °.
In an alternative embodiment, the line of the working medium entrances and sender property outlet is located on the middle section of described device.
In an alternative embodiment, the aperture of jet hole described in each column is identical.
In an alternative embodiment, there is gap between the fin of adjacent two column.
Application of the above-mentioned radiator in electronic equipment, microwave system and laser system.
Compared with prior art, the present invention has the following advantages:
Radiator provided in an embodiment of the present invention has the fin array at inclination angle by being arranged, and makes adjacent two column rib
The inclination direction of piece is different, when heat radiation working medium flows into the second cavity after jet hole accelerates, by the alternating resistance of adjacent two column fin
Keep off flow forward, inclination fin expand heat exchange area, the fin being staggered increase flowing of the working medium in radiator away from
From and heat-exchange time, destroy the development of working medium streamwise thermal boundary layer, especially when working medium flows through the both ends of fin,
Whirlpool will be formed, the disturbance between working medium is strengthened, improves heat exchange efficiency；Meanwhile jet stream and the radiated rib being staggered
Synergistic effect makes still have the lower working medium of temperature to enter at sender property outlet position, improves the heat exchange near sender property outlet
Effect improves the temperature uniformity of radiator.
Detailed description of the invention
Fig. 1 is radiator schematic illustration provided in an embodiment of the present invention；
Fig. 2 is jet stream AND DEWATERING FOR ORIFICE STRUCTURE schematic diagram provided in an embodiment of the present invention；
Fig. 3 is structural diagram of base plate provided in an embodiment of the present invention；
Fig. 4 is jet stream hole array provided in an embodiment of the present invention and fin array combination schematic diagram.
Specific embodiment
A specific embodiment of the invention is described in further details below with reference to the drawings and specific embodiments.
Referring to Fig. 1, the embodiment of the invention provides a kind of radiator, including cover board 2, bottom plate 4 and it is located at the cover board 2
Jet stream orifice plate 3 between bottom plate 4 forms the first cavity 5,4 He of bottom plate between the cover board 2 and the jet stream orifice plate 3
The second cavity 6 is formed between the jet stream orifice plate 3, the cover board 2 is equipped with working medium entrances 1, the separate work on the bottom plate 4
Sender property outlet 7 is equipped at the position of matter entrance 1, referring to fig. 2, the jet stream orifice plate 3 is equipped with jet stream hole array, referring to Fig. 3, institute
Bottom plate 4 is stated equipped with fin array, the fin 9 and the perpendicular where 7 line of the working medium entrances 1 and sender property outlet it
Between to have be not 90 ° of angle, and the angle for being located at each fin 9 of same column is acute angle or is obtuse angle, position
It is one, obtuse angle in the angle one of the fin 9 of adjacent two column is acute angle.
Radiator provided in an embodiment of the present invention, when in use, heat radiation working medium enter the first cavity 5 from working medium entrances 1,
The second cavity 6 is flowed by each jet hole 8 on jet stream orifice plate 3, in the second cavity 6, is hindered by the alternating of adjacent two column fin 9
Gear flows to 7 direction of sender property outlet, takes away heat.
Specifically, working medium entrances 1 and sender property outlet 7 can be set and can also set on side frame in the embodiment of the present invention
It sets in mainboard at the position of side frame, working medium entrances 1 and sender property outlet 7 can be located on diagonal line, can also be located at
On middle section, the present invention is not construed as limiting.The working medium entrances 1 and 7 line of sender property outlet are the line of centres of the two.
Radiator provided in an embodiment of the present invention has the fin array at inclination angle by being arranged, and makes adjacent two column rib
The inclination direction of piece is different, when heat radiation working medium flows into the second cavity after jet hole accelerates, by the alternating resistance of adjacent two column fin
Keep off flow forward, inclination fin expand heat exchange area, the fin being staggered increase flowing of the working medium in radiator away from
From and heat-exchange time, destroy the development of working medium streamwise thermal boundary layer, especially when working medium flows through the both ends of fin,
Whirlpool will be formed, the disturbance between working medium is strengthened, improves heat exchange efficiency；Meanwhile jet stream and the radiated rib being staggered
Synergistic effect makes still have the lower working medium of temperature to enter at sender property outlet position, improves the heat exchange near sender property outlet
Effect improves the temperature uniformity of radiator.
Referring to Fig. 1,3 and 4, in an alternative embodiment, in the fin array, each column are perpendicular to the working medium entrances 1
With the perpendicular where 7 line of sender property outlet, each row is parallel to the perpendicular.
Radiator provided in an embodiment of the present invention makes the second sky by the way that fin array to be carried out to above-mentioned Orthogonally arrangement
Working medium is stopped flow forward, and the main flow direction of working medium and working medium entrances and sender property outlet by the alternating of adjacent two column fin in chamber
Perpendicular where line is parallel, reduces the flow resistance of working medium.
Referring to Fig. 1,2 and 4, in an alternative embodiment, in the jet stream hole array, each column are perpendicular to the working medium entrances
1 and 7 line of sender property outlet where perpendicular, each row is parallel to the perpendicular.
Radiator provided in an embodiment of the present invention makes jet hole battle array by the way that jet hole to be carried out to above-mentioned Orthogonally arrangement
It arranges symmetrical relative to the perpendicular where working medium entrances and sender property outlet line；Under identical jet stream aperture, working medium exists
Assignment of traffic in jet hole equally also will be symmetrical.
Referring to fig. 4, in an alternative embodiment, fin 9 described in every row is located between jet hole 8 described in two adjacent rows,
Fin 9 described in each column is located between the two adjacent column jet holes 8.
Radiator provided in an embodiment of the present invention, by making radiated rib array and jet stream hole array interlaced arrangement
The cooling heat dissipation of jet stream is organically combined with fin enhanced heat exchange, and the position for the weakening that exchanges heat except jet stream stationary point is radiated by arrangement
Fin increases heat exchange area and carrys out enhanced heat exchange, improves the radiating efficiency and heat exchange uniformity of radiator.
As shown in Fig. 2, in an alternative embodiment, 8 aperture of jet hole at 1 position of working medium entrances is greater than
The aperture of jet hole 8 at 7 position of sender property outlet.
Radiator provided in an embodiment of the present invention is greater than by being arranged close to the jet hole aperture at working medium entrances position
The aperture of jet hole at the sender property outlet position enables the working medium in the first cavity more from close to working medium
Jet hole at entry position enters in the second cavity, and enters in the second cavity from the jet hole from sender property outlet position
Working medium it is less, to increase flow distance of the unit mass working medium in the second cavity and exchange heat with radiated rib
Time improves the heat exchange efficiency of radiator.
As shown in Fig. 2, in an alternative embodiment, the decreasing pore size of jet hole 8 described in every row.
Radiator provided in an embodiment of the present invention makes every row by the arrangement of the decreasing pore size of every row jet hole
Refrigerant flow rate in middle jet hole is continuously improved, and improves the jet impingement heat transfer effect at sender property outlet position, improves
It sender property outlet position nearby radiates deterioration problem since Temperature of Working increases bring.
It is vertical flat where the fin 9 and 7 line of the working medium entrances 1 and sender property outlet in an alternative embodiment
Angle between face is 30-60 ° or 120-150 °.
Radiator provided in an embodiment of the present invention, is found by numerical analysis, when the tilt angle of radiated rib is in 30-
Within the scope of 60 ° or 120-150 °, flow distance and heat-exchange time of the working medium in radiator can not only be increased, destroy working medium
The development of streamwise thermal boundary layer and the disturbance for enhancing working medium, moreover it is possible to control the increase of radiator flow resistance, reduce
The formation of flow dead zone.
In an alternative embodiment, the line of the working medium entrances 1 and sender property outlet 7 is located at the middle section of described device
On.
Radiator provided in an embodiment of the present invention, by the way that working medium entrances and sender property outlet are arranged in radiator
Section reduces jet hole with working medium entrances at a distance from plane locating for sender property outlet, reduces working medium in radiator
Flow resistance.
In an alternative embodiment, the aperture of jet hole 8 described in each column is identical.
The aperture of radiator provided in an embodiment of the present invention, jet hole described in each column is identical, and the first cavity be located at it is same
Power pressure at one column position is close, the working medium effluxvelocity in same row jet hole will be kept also similar, is conducive to same row
The uniformity of position heat exchange.
In an alternative embodiment, there is gap between the fin 9 of adjacent two column.
Radiator provided in an embodiment of the present invention makes two adjacent fins by discontinuously being designed fin column
Between have gap, will make working medium fin both ends formed whirlpool, reinforce working medium disturbance, enhance heat transfer effect；Fin simultaneously
Discontinuously also destroy working medium along the development of fin surface thermal boundary layer, be also beneficial to improve heat exchange efficiency.
Application of the above-mentioned radiator in electronic equipment, microwave system and laser system.The following are of the invention one
Specific embodiment:
Present embodiments provide a kind of radiator of red copper material, including cover board 2, bottom plate 4 and be located at the cover board and
Jet stream orifice plate 3 between bottom plate, the cover board 2 include the rectangular cover board mainboard and be arranged in cover board mainboard surrounding that side length is 40mm
Frame, the bottom plate 4 includes square floor mainboard and the frame of bottom plate mainboard surrounding is arranged in, and the cover board 2 is penetrated with described
The first cavity 5 is formed between discharge orifice plate 3, and the second cavity 6, the cover board master are formed between the bottom plate 4 and the jet stream orifice plate 3
Position is equipped with working medium entrances 1 among the left side of plate, and the Right Border of the bottom plate 4 is equipped with sender property outlet 7, the jet stream orifice plate
3 are equipped with the jet stream hole arrays of evenly arranged 8 row 8 column, and the bottom plate 4 is equipped with 7 row, 7 column fin array, the fin 9 with
There is angle between perpendicular where 7 line of the working medium entrances 1 and sender property outlet, and be located at each fin of same column
9 angle is 45 ° or is 135 °, and angle one of the fin 9 arranged positioned at adjacent two is 135 ° for 45 ° one.
Fin 9 described in every row is located between jet hole 8 described in two adjacent rows, and fin 9 described in each column, which is located at described in two adjacent column, to be penetrated
Between discharge orifice 8.The decreasing pore size of jet hole 8 described in every row, maximum diameter of hole 1mm, minimum-value aperture 0.5mm are penetrated described in each column
The aperture of discharge orifice 8 is identical.
Use water as heat radiation working medium, in the case where the volume flow of water is 7L/min, the heat exchange system of the radiator
Number can reach 37000W/ (m2·K)。
The above, a specific embodiment only of the invention, but scope of protection of the present invention is not limited thereto, appoints
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, all by what those familiar with the art
It is covered by the protection scope of the present invention.
Unspecified part of the present invention belongs to common sense well known to those skilled in the art.
Claims (11)
1. a kind of radiator, which is characterized in that including cover board, bottom plate and the jet hole between the cover board and bottom plate
Plate forms the first cavity, forms second between the bottom plate and the jet stream orifice plate between the cover board and the jet stream orifice plate
Cavity, the cover board are equipped with working medium entrances, are equipped with sender property outlet, institute at the position far from the working medium entrances on the bottom plate
Jet stream orifice plate is stated equipped with jet stream hole array, the bottom plate is equipped with fin array, the fin and the working medium entrances and work
There is the not angle for 90 ° between perpendicular where matter outlet line, and be located at the folder of each fin of same column
Angle is acute angle or is obtuse angle, and it is acute angle that the angle one positioned at the fin of adjacent two column, which is one, obtuse angle,.
2. radiator according to claim 1, which is characterized in that in the fin array, each column are perpendicular to the work
Perpendicular where matter entrance and sender property outlet line, each row are parallel to the perpendicular.
3. radiator according to claim 1 or 2, which is characterized in that in the jet stream hole array, each column are perpendicular to institute
The perpendicular where working medium entrances and sender property outlet line is stated, each row is parallel to the perpendicular.
4. radiator according to claim 3, which is characterized in that fin described in every row, which is located at described in two adjacent rows, to be penetrated
Between discharge orifice, fin described in each column is located between the two adjacent column jet holes.
5. radiator according to claim 1 or 4, which is characterized in that the jet stream at the working medium entrances position
Hole aperture is greater than the aperture of the jet hole at the sender property outlet position.
6. radiator according to claim 5, which is characterized in that the decreasing pore size of jet hole described in every row.
7. radiator according to claim 1, which is characterized in that the fin and the working medium entrances and sender property outlet
The angle between perpendicular where line is 30-60 ° or 120-150 °.
8. according to claim 1, radiator described in 2,4,6 or 7, which is characterized in that the working medium entrances and sender property outlet
Line be located on the middle section of described device.
9. radiator according to claim 8, which is characterized in that the aperture of jet hole described in each column is identical.
10. according to claim 1, radiator described in 2,4,6,7 or 9, which is characterized in that positioned at the rib of adjacent two column
There is gap between piece.
11. the described in any item radiators of claim 1-10 are applied in electronic equipment, microwave system and laser system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280723.6A CN109548364B (en) | 2018-10-30 | 2018-10-30 | Heat dissipation device and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280723.6A CN109548364B (en) | 2018-10-30 | 2018-10-30 | Heat dissipation device and application thereof |
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| Publication Number | Publication Date |
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| CN109548364A true CN109548364A (en) | 2019-03-29 |
| CN109548364B CN109548364B (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811280723.6A Active CN109548364B (en) | 2018-10-30 | 2018-10-30 | Heat dissipation device and application thereof |
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Cited By (1)
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| CN110112112A (en) * | 2019-04-12 | 2019-08-09 | 中国电子科技集团公司第三十八研究所 | Misting cooling formula cold plate |
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