CN109462967A - A kind of radiator - Google Patents
A kind of radiator Download PDFInfo
- Publication number
- CN109462967A CN109462967A CN201811591875.8A CN201811591875A CN109462967A CN 109462967 A CN109462967 A CN 109462967A CN 201811591875 A CN201811591875 A CN 201811591875A CN 109462967 A CN109462967 A CN 109462967A
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- CN
- China
- Prior art keywords
- fin
- thermally conductive
- heat
- radiator
- conductive core
- 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.)
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Links
- 230000005855 radiation Effects 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 239000012528 membrane Substances 0.000 abstract description 5
- 238000004377 microelectronic Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 2
- 230000017525 heat dissipation Effects 0.000 description 13
- 229910002804 graphite Inorganic materials 0.000 description 9
- 239000010439 graphite Substances 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 239000002184 metal Substances 0.000 description 6
- 230000021615 conjugation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- 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
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
-
- 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
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20409—Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing
-
- 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
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20409—Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing
- H05K7/20427—Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing having radiation enhancing surface treatment, e.g. black coating
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
A kind of radiator, it is related to the field of radiating that conducts heat, by thermally conductive core, fin, fixing piece composition, thermally conductive core is a solid or hollow heat carrier or heat pipe or complex, fin is along plane X, the thermal coefficient of Y both direction is 1.2 times of thermal coefficient of its section Z-direction or more of flexible membrane or rigid thermally conductive sheet, around thermally conductive core interval, the distance that is staggered is not stacked in thermally conductive core appearance to the inside sidewall portion of each thermally conductive fin, the outside portion of each fin is arranged within the scope of 10 ° to 360 ° along thermally conductive core outer surface tangential direction to external radiation or vortex, the fixing piece is fixed on fins group on thermally conductive cylinder, the radiator can utilize heat loss through radiation mechanism, realize big thermal capacity, high cooling efficiency, manufacturing process is simple, the low effect of production cost, it is widely used in heat power, power electronics, microelectronics , photoelectronic cooling system.
Description
Technical field
The invention belongs to the heat transfer of calorifics scope, especially heat source, heat dissipation technology and devices.
Background technique
The systems such as heat sink applications are converted in various heat powers, electro-optic conversion, electric heating are converted, it is reliable to system operation
Property plays a very important role.Especially in circuit system, temperature is very sensitive, and heat dissipation problem has become the bottle of electronic device
One of neck.
Radiator used by current power electronics, microelectronics, electro-optical system mainly include metal fin and coating type,
Heat pipe-type, microchannel formula, graphite fins formula, graphite film chip etc..Metal fin and coating type are for more demanding heating conduction
Place its opposite thermal capacitance is small, thermal coefficient is lower, weight is higher, volume is larger.Heat-pipe type radiator only has one-dimensional heat conduction
Ability.Microchannel radiator needs mating circulator, causes volume big, and reliability reduces.Common graphite gilled radiator, though
It is so light-weight, but thermal coefficient is still lower.Graphite film chip has the characteristics that the two-dimentional capacity of heat transmission, light-weight, but is primarily present
Occupancy plane space is big, and thermal capacitance is small, diaphragm cross-wise direction thermal coefficient is very low, when with plane contact heat source, heat-conducting effect
The problems such as substantially reducing.
To solve the above-mentioned problems, Chinese patent CN200510054362.X discloses a kind of " dissipating using graphite as substrate
The manufacturing method of hot seat and its graphite ", using graphite as the radiating seat of substrate, another side is equipped with metal covering, and metal surface is connected with
Fins group can absorb rapidly the heat source that electronic component is issued, and the stability and extension that electronic component entirety can be improved make
With the service life, but and the small problem of unresolved fin material thermal capacitance, radiating efficiency be not also optimal.Although by broken
Broken, dipping and graphitizing method, which keep radiating seat thermally conductive, becomes three-dimensional from two dimension, but inevitably in-plane thermal conductivity
Decline, manufacturing cost greatly increase.
Chinese patent CN201010160082.8 discloses a kind of " heat radiator with composite structure and preparation method thereof ", by
Multi-disc is handed in clamping device with multi-disc using the short fin of flexible graphite material using the long fin of exfoliated-graphite composite
One end alignment of mistake arrangement, long fin and short fin, the end face of alignment are equipped with heat-conducting layer.The radiator of this structure has weight
Amount is light, thermal resistance is small, the features such as contacting, is with short production cycle.But when using relatively thin flexible membrane, not only pacify in use process
It is limited to fill direction, and often will appear flexible membrane bending, accumulation, reduces effective heat dissipation area, it is high-power to be not suitable with manufacture
The problems such as radiator, seriously affects result of ventilating heat dissipation；And when using thicker strong fin, and greatly reduce effective heat dissipation
Area.
In addition to the above-mentioned problems, the above-mentioned prior art, due to being mostly the placement that is parallel to each other between its each fin, so that heat dissipation
What mechanism mainly utilized is the convective heat transfer characteristic between the heat transfer of fin and fin, can not utilize heat loss through radiation machine substantially
Reason, needing to install convection fan could effectively use.This is greatly lowered the operational reliability of system.
Summary of the invention
The technical problem to be solved by the present invention is both having made full use of thermally conductive diaphragm along the height of X, Y both direction of plane
Thermal coefficient characteristic, and it is able to achieve the heat loss through radiation characteristic using fin；Both biggish heat dissipation area, biggish heat can guarantee
Capacity, biggish air flow spaces, and can guarantee the structural stability using radiator when flexible heat sink diaphragm.It realizes simultaneously
High heat transfer radiating efficiency, manufacturing process is simple, and production cost is low, is suitable for the purpose of high-power heat-dissipation.
In order to solve the above technical problems, technical solution proposed by the present invention is:
A kind of radiator is made of thermally conductive core, fin, fixing piece, which is characterized in that the thermally conductive core is one solid thermally conductive
Cylinder or hollow heat carrier or heat pipe or composite heat-conducting body, the fin are to be along the thermal coefficient of plane X, Y both direction
1.2 times of thermal coefficient or more of flexible membrane of its section Z-direction or rigid thermally conductive sheet, in the same inner side edge of every fin
It is provided with fixed notch on part, the distance that is staggered is not stacked in and leads the inside sidewall portion of each thermally conductive fin around thermally conductive core interval
The outside portion of hot core appearance, each fin is arranged in 10 ° extremely to external radiation or vortex along thermally conductive core outer surface tangential direction
Within the scope of 360 °, the fixing piece is that fins group is fixed on by the notch of fin and leads by fixed ring or binding lines, fixing piece
On plume body.Radiator by the same end face of thermally conductive core and fin for that can polish, polish when being mounted on flat heat source body
The heat-conducting glue or place mat elasticity high thermal conductivity gasket of high thermal conductivity are smeared between end face and heat source.Radiator is used for tubular heat source body
When, thermally conductive core uses hollow shape, and tubular heat source body passes through thermally conductive core, between tubular heat source body surface face and hollow thermally conductive core
It is coated with heat-conducting glue.The radiator of this kind of structure can form heat loss through radiation space, the heat wave phase between each fin between each fin
Mutually reflection, final heat wave is from radiator outer rim outlet radiant into environment.When environment space is by metal cabinet or other to lead
Hot material constitute cabinet when, interior can coating black heat absorbing coating or correspond to radiator Net long wave radiation radiate
Range is provided with transparent plate body；It is also possible to first pass through radiating core and heat is directed to outside shell, then from radiator to outer space
Between heat loss through radiation.Even if not installing electric fan, which can also generate good heat dissipation effect using radiation mechanism.
A kind of above-mentioned radiator, selectable technical solution are that the thermally conductive core is a solid thermally conductive cylinder or sky
Heart heat carrier or heat pipe, the outer surface of thermally conductive core are cylindrical surface or multi-panel or composite surface.When using polyhedron, it is more convenient
The bonding of diaphragm and thermally conductive core, polyhedral quantity are equal with radiating fin quantity.
A kind of above-mentioned radiator, selectable technical solution are that the fin is along heat sink diameter direction difference ruler
Fins set made of the size fin separation of degree is staggeredly stacked.Small scale fin in the fin of the different scale is also possible to
Heat-conducting pad.It installs the fin of small scale additional on the inside of radiator, can not only realize biggish thermal capacity, but also can be in the outside of radiator
Biggish radiation space and reflection angle are formed between fin, are conducive to improve heat dissipation effect.
A kind of above-mentioned radiator, selectable technical solution be, the flat shape of the fin expansion be it is T-shaped or
Rectangular or special-shaped, the every fin is provided with fixed notch on inboard portion, refers to that its notch is provided with fin and heat conduction core
The both ends of body contact or middle part.
A kind of above-mentioned radiator, selectable technical solution are, adjacent between fin and thermally conductive stem contact surface
Between the fin of touching, it is coated with heat-conducting glue between thermally conductive core and thermally conductive fin and heat source surface, what is contacted with thermally conductive stem
Fin outer short transverse is equipped with compression bar, and the notch that fixed ring or binding lines pass through on fin is fixed on the tight appearance of press strip
Face.
A kind of above-mentioned radiator, selectable technical solution are, described respectively to external radiation or the fin for the arrangement that is vortexed
Between be provided with positioning isolated gate.Isolated gate is fixed between thermally conductive fin, and isolated gate can be with wavy silk screen, can also
To be wave " comb " shape with conjugation.The effect of positioning isolated gate is that, when fin uses flexible membrane, can have each fin
Effect is kept apart, and diaphragm flexes, accumulation are prevented.Isolated gate, which can be, to be fixed on bracket, is also possible to be fixed on diaphragm.
A kind of above-mentioned radiator, selectable technical solution are, are answering for a variety of Heat Conduction Material compositions in the fin
It closes fin or outer surface is covered with or is coated with or impregnate the film or coating of high thermal conductivity, high radiant rate, highly reflective material.It is covered
The roughness of film or coating is corresponding with the heat wave wave-length coverage radiated.
A kind of above-mentioned radiator, selectable technical solution are, described between each fin of radiator outer edge
Spacing distance is greater than 4 millimeters.
A kind of above-mentioned radiator, selectable technical solution are to be equipped with fixed frame in the one end of radiator, are dissipated
The end of hot device is also equipped with electric fan.Equipped with electric fan, better heat-radiation effect.Fixed bracket can be installation radiator to circuit
Bracket on plate is also possible to install electric fan simultaneously and positions the compound rest of isolated gate.
The utility model has the advantages that a kind of radiator of the invention also can get preferable in no electric fan forced convertion heat dissipation
System reliability of operation can be improved in heat dissipation effect, and light-weight, manufacturing process is simple, and production cost is low.
Detailed description of the invention:
Fig. 1 is a kind of radiator cross-sectional structure schematic diagram of the invention.
Fig. 2 is a kind of side view of radiator of Fig. 1.
Fig. 3 is a kind of plane outspread drawing of the thermally conductive diaphragm of radiator of Fig. 1.
Fig. 4 is a kind of isolated gate diaphragm plane expanded view of radiator of Fig. 1.
Fig. 5 is by Fig. 4 pressing diaphragm isolated gate sectional view after molding.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and detailed description.
A kind of radiator shown in attached drawing 1,2,3,4,5, by thermally conductive core 1, fin 2, fixing piece 3, isolated gate 5, thermally conductive
Gasket 6, press strip 9 form, and thermally conductive core 1 is a heat pipe, and it is its section that fin 2, which is along the thermal coefficient of plane X, Y both direction,
5 times of thermal coefficient or more of graphite film semi-flexible of face Z-direction is provided with solid on the same inside sidewall portion of every fin 2
Surely notch 4(Fig. 3 is used).Isolated gate 5 is that the elastomer (Fig. 4) with conjugation portion 7 and rack gear 8 (only draws part isolation in Fig. 1
Grid), heat-conducting pad 6 is that a shape is similar to fin 2, but length and width direction size is both less than the small fin or one of fin 2
The thermally conductive diaphragm of rectangle.Press strip 9 is a heat-conducting metal lamellar.Each heat-conducting pad 6, press strip 9 be arranged in each 2 inside portion of fin with every
From between conjugation portion on the inside of grid 5.The inside edge and 5 inner side edge conjugate moiety of isolated gate of each thermally conductive fin 2 be not around thermally conductive core 1
It is spaced the distance that is staggered to be stacked within the scope of 360 ° of 1 appearance of thermally conductive core, the inside of heat-conducting pad 6, press strip 9 and thermally conductive fin 2
Edge and isolated gate are coated with heat-conducting glue between 5 inner side edge conjugation portion.Fixing piece 3 is binding item, and fixing piece 3 passes through the notch of fin
4 are fixed on the end of each fin 2, isolated gate 5, heat-conducting pad 6, press strip 9 protruded up and down on thermally conductive cylinder 1.Radiator peace
In planar chip 10, thermally conductive core 1 and the same end face of fin are polished, smear height between end face and heat source 10 polishing
The heat-conducting glue or place mat elasticity high thermal conductivity gasket of thermal conductivity.The radiator of this kind of structure can form radiation between each fin and dissipate
Heat space, the heat wave between each fin are mutually reflected, and final heat wave is from radiator outer rim outlet radiant into environment.Even if no
Electric fan is installed, which can also generate good heat dissipation effect using radiation mechanism.
Although having been combined preferred embodiment describes the device of the invention, the present invention is not limited to as described herein
Concrete form, on the contrary, its object is to cover naturally fall into the scope of the invention that described claims limit
Various alternatives, remodeling, various characteristic elements recombinant and derivative Combination nova and equivalents.
Claims (9)
1. a kind of radiator is made of thermally conductive core, fin, fixing piece, which is characterized in that the thermally conductive core be one it is solid or
Hollow heat carrier or heat pipe or composite heat-conducting body, the fin be its section Z along the thermal coefficient of plane X, Y both direction
1.2 times of thermal coefficient or more of the thermally conductive diaphragm in direction is provided with fixed with scarce on the same inside sidewall portion of every fin
Mouthful, around thermally conductive core interval, the distance that is staggered is not stacked in thermally conductive core appearance, each fin to the inside sidewall portion of each thermally conductive fin
Outside portion along thermally conductive core outer surface tangential direction to external radiation or be vortexed be arranged within the scope of 10 ° to 360 °, the fixation
Part is that fins group is fixed in thermally conductive core by fixed ring or binding lines, fixing piece by the notch of fin.
2. a kind of radiator according to claim 1, which is characterized in that the thermally conductive core be a solid thermally conductive cylinder or
Hollow heat carrier or heat pipe or composite heat-conducting body, thermally conductive core outer surface are cylindrical surface or multi-panel or composite surface.
3. a kind of radiator according to claim 1, which is characterized in that the fin is along heat sink diameter direction difference
Fins set made of the big or small slice interleaved of scale is stacked.
4. a kind of radiator according to claim 1, which is characterized in that the flat shape of the fin expansion is T-shaped
Shape is rectangular or special-shaped, and the every fin is provided with fixed notch on inboard portion, refers to that its notch is provided with fin and leads
The both ends of hot core contact or middle part.
5. a kind of according to claim 1, radiator described in 2,3,4, which is characterized in that fin and thermally conductive stem contact surface it
Between, between the fin of adjacent contact, be coated with heat-conducting glue between thermally conductive core and thermally conductive fin and heat source surface, with heat conduction core
The fin outer short transverse of column contact is equipped with press strip, and the notch that fixed ring or binding lines pass through on fin is fixed on press strip
Outside.
6. a kind of radiator according to claim 5, which is characterized in that described respectively to external radiation or the fin for the arrangement that is vortexed
Positioning isolated gate is provided between piece.
7. a kind of radiator according to claim 6, which is characterized in that the fin is answering for a variety of Heat Conduction Material compositions
It closes fin or outer surface is covered with or is coated with or impregnate the film or coating of high thermal conductivity, high radiant rate, highly reflective material, covered
The roughness of film or coating is corresponding with the heat wave wave-length coverage radiated.
8. a kind of radiator according to claim 5, which is characterized in that described between each fin of radiator outer edge
Spacing distance be greater than 4 millimeters.
9. a kind of radiator according to claim 5, which is characterized in that fixed frame is installed in the one end of radiator,
The end of radiator is also equipped with electric fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591875.8A CN109462967A (en) | 2018-12-25 | 2018-12-25 | A kind of radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591875.8A CN109462967A (en) | 2018-12-25 | 2018-12-25 | A kind of radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109462967A true CN109462967A (en) | 2019-03-12 |
Family
ID=65614641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811591875.8A Withdrawn CN109462967A (en) | 2018-12-25 | 2018-12-25 | A kind of radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109462967A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595848A (en) * | 2011-01-10 | 2012-07-18 | 哥德科技有限公司 | Radiating device and combination device with radiating device |
| CN108531144A (en) * | 2018-06-15 | 2018-09-14 | 宁波杉越新材料有限公司 | A kind of nested multilayer laminar pleated structure heat-conducting article and preparation method thereof |
| CN108766948A (en) * | 2018-08-17 | 2018-11-06 | 威海云山科技有限公司 | A kind of flexible membrane radiator |
| CN209402951U (en) * | 2018-12-25 | 2019-09-17 | 威海云山科技有限公司 | A kind of radiator |
-
2018
- 2018-12-25 CN CN201811591875.8A patent/CN109462967A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595848A (en) * | 2011-01-10 | 2012-07-18 | 哥德科技有限公司 | Radiating device and combination device with radiating device |
| CN108531144A (en) * | 2018-06-15 | 2018-09-14 | 宁波杉越新材料有限公司 | A kind of nested multilayer laminar pleated structure heat-conducting article and preparation method thereof |
| CN108766948A (en) * | 2018-08-17 | 2018-11-06 | 威海云山科技有限公司 | A kind of flexible membrane radiator |
| CN209402951U (en) * | 2018-12-25 | 2019-09-17 | 威海云山科技有限公司 | A kind of radiator |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190312 |