CN201725788U - Novel radiator - Google Patents
Novel radiator Download PDFInfo
- Publication number
- CN201725788U CN201725788U CN2010201669617U CN201020166961U CN201725788U CN 201725788 U CN201725788 U CN 201725788U CN 2010201669617 U CN2010201669617 U CN 2010201669617U CN 201020166961 U CN201020166961 U CN 201020166961U CN 201725788 U CN201725788 U CN 201725788U
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- Prior art keywords
- coating
- diamond
- metal base
- heat
- heat conducting
- 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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- 238000000576 coating method Methods 0.000 claims abstract description 74
- 239000011248 coating agent Substances 0.000 claims abstract description 73
- 229910052751 metal Inorganic materials 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 25
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000010884 ion-beam technique Methods 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 238000001755 magnetron sputter deposition Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 13
- 229910003460 diamond Inorganic materials 0.000 description 11
- 239000010432 diamond Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 238000005240 physical vapour deposition Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000000992 sputter etching Methods 0.000 description 1
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Abstract
The utility model provides a multi-layer DLC (diamond-like carbon) coating which contains chrome metal and is deposited on a metal base material through the technologies of magnetron sputtering and ion beam, so as to realize highly thermal-conductive performance, and particularly relates to a novel radiator prepared by utilizing the highly thermal-conductive DLC coating. The novel radiator comprises a heat conducting piece and radiating fins, wherein the heat conducting piece is propped against a heat source; the radiating fins are fixedly connected with the heat conducting piece; and the heat conducting piece comprises the metal base material and a highly thermal-conductive coating deposited on the metal base material. The utility model has the benefits that the DLC coating is highly thermal-conductive; the heat conducting performance and the heat radiating performance of the novel radiator prepared by the diamond-like carbon coating are high; the heat conducting direction of the novel radiator is not limited; and the market popularization value is high.
Description
Technical field
The utility model relates to a kind of radiating element with high-termal conductivity coating.
Background technology
Be widely used in local LED street lamp such as street, bridge, square now, its inner luminescence chip temperature is very high when luminous, when this luminescence chip when using below 55 ℃, the life-span can reach 20～300,000 hours; And when using more than 95 ℃, because the temperature of cold light source can't reach on the radiator, the too high meeting of the temperature of luminescence chip causes the street lamp life-span sharply depleted.The present hot pipe technique of using, owing to there is the heat conduction directivity, heat can only conduct from bottom to top, so do not possess the function of multidirectional heat conduction.
The at present general employed fin base material of heat sink material (as civilian high-end electronic device, LED with chip material, commercial plant with heat exchanger etc.) nearly all is an aluminium alloy, but aluminium is not the highest metal of conductive coefficient.The heat conductivility of gold and silver is relatively good, but that shortcoming is exactly a price is too high.The fine copper radiating effect takes second place, but copper sheet is except the cost height, weight greatly, not corrosion-resistant etc., when in a single day oxidation takes place copper, its heat conduction and heat dispersion will descend greatly, cause temperature too high, increase the possibility that LED lost efficacy, caused the aggravation of LED light decay, the lost of life.
The utility model content
The purpose of this utility model is to solve above-mentioned technical problem, a kind of heat conduction, good heat dissipation effect is provided and does not possess the new radiator that the heat conduction direction limits shortcoming.
The purpose of this utility model is achieved through the following technical solutions:
A kind of novel heat sink, comprise: with the heat-conducting piece of thermal source butt and with the affixed radiating fin of described heat-conducting piece (7), described heat-conducting piece is made up of metal base and the high-termal conductivity coating that is deposited on the described metal base, described high-termal conductivity coating comprises two-layer diamond like carbon (DLC) coating, be provided with first chrome coating of solid attached effect between described ground floor diamond-like coating and the metal base, described ground floor diamond-like coating and composition be 20%～60% graphite mutually and be provided with between the second layer diamond-like coating of 80%～40% diamond phase and be used for heat conducting second chrome coating.
Further, the described first chrome coating thickness is 20～40 nanometers.Described ground floor diamond-like coating thickness is 1.2～1.4 microns.The described second chrome coating thickness is 10～20 nanometers.Described second layer diamond-like coating thickness is 1.0～1.2 microns.
Again further, described metal base is red copper or aluminium alloy or stainless steel.
The beneficial effects of the utility model are mainly reflected in: the utility model diamond like carbon (DLC) coating has high-termal conductivity, and is good and do not have heat conduction direction restriction with new radiator heat conduction, the heat dispersion of its preparation, has good market popularization value.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1: the structural representation of the utility model novel heat sink.
Fig. 2: the structural representation of the heat-conducting piece of the utility model novel heat sink.
Embodiment
About addressing other technology contents, characteristics and effect before the utility model, in the following detailed description that cooperates with reference to one of graphic preferred embodiment, can clearly present.
Consult Fig. 1, the novel heat sink of the utility model preferred embodiment comprises: with the heat-conducting piece 7 of thermal source 6 butts and the radiating fin 8 affixed with described heat-conducting piece 7, radiating fin 8 can be replaced by other common radiator spare, for example thermal paste, radiating tube and so on.
Described heat-conducting piece 7 is made up of metal base 1 and the high-termal conductivity coating that is deposited on the described metal base, and described metal base is red copper or aluminium alloy or stainless steel.
Consult Fig. 2, described high-termal conductivity coating comprises two-layer diamond-like coating, be provided with first chrome coating 2 of solid attached effect between described ground floor diamond-like coating 3 and the metal base 1, made between ground floor diamond-like coating 3 and the metal base 1 to have good bonding force;
Be provided with between the described two-layer diamond-like coating 3,5 and be used for heat conducting second chrome coating 4, the internal stress that is used to realize diamond-like coating discharge and each layer between heat conduction.
The described first chrome coating thickness is 20～40 nanometers.Described ground floor diamond-like coating thickness is 1.2～1.4 microns.The described second chrome coating thickness is 10～20 nanometers.Described second layer diamond-like coating thickness is 1.0～1.2 microns.
Further, the composition of the described outermost second layer diamond-like coating of this preferred embodiment is 20%～60% graphite phase, and 80%～40% diamond phase.The concrete reason of selecting hereinafter describes in detail.
The utility model has also disclosed the manufacture method of above-mentioned novel heat sink, comprises the steps:
The first, metal base is removed oxide layer and ultrasonic waves for cleaning, guarantee the cleaning of material surface;
The second, metal base is placed among the PVD coating apparatus, bleed and be evacuated to 1*10
-5The base vacuum of Pa;
The 3rd, heating of metal base material to 150 ℃, and in whole coating procedure, keep this temperature;
The 4th, in the vacuum chamber of PVD coating apparatus, feed argon gas, keeping the plated film vacuum indoor pressure is the pressure of 1.5～2.0Pa, applies on metal base-the 100V bias voltage, finishes first chrome coating with magnetron sputtering technique;
The 5th, in the vacuum chamber of PVD coating apparatus, feed C
2H
2Gas, keeping the plated film vacuum indoor pressure is 1.2*10
-1～3.0
-1The pressure of Pa applies on metal base-the 200V bias voltage, finishes the ground floor diamond-like coating with ion beam technology, and when depositing this layer diamond-like coating, the voltage that is applied on the ion beam is 1200V, and electric current is 100～120mA;
The 6th, in the vacuum chamber of PVD coating apparatus, feed argon gas, keeping the plated film vacuum indoor pressure is the pressure of 1.5～2.0Pa, applies on metal base-the 70V bias voltage, finishes the 2nd Cr coating with magnetron sputtering technique;
The 7th, in the vacuum chamber of PVD coating apparatus, feed C
2H
2Gas, keeping the plated film vacuum indoor pressure is 1.2*10
-1～3.0
-1The pressure of Pa applies on metal base-the 500V bias voltage, finishes second layer diamond-like coating with ion beam technology, and when depositing this layer diamond-like coating, the voltage that is applied on the ion beam is 2200V, and electric current is 200～220mA.
Can obtain the diamond phase (sp of outermost diamond-like coating by above-mentioned process
3) coating that significantly increases of content, so this coating has high-termal conductivity.
PVD coating technique commonly used at present mainly is divided three classes, vacuum vapor plating, vacuum sputtering plating and vacuum ionic bundle plated film.PVD coating apparatus, magnetron sputtering technique, ion beam technology all use prior art in this method.Simply introduce the operation principle of ion beam technology at this.
(vacuum degree is 1*10 under vacuum environment
-1Pa～5*10
-1Pa), the gas that is introduced under the electromagnetic field acting in conjunction of ion beam by ionization.Be accelerated under the electric field action between ion beam and the substrate by the ion of ionization, and with the bombardment of the form of high energy particle or be deposited on the substrate.The gas that is introduced into may be Ar, N according to the needs of technology
2Or C
2H
2Deng, thereby finish technologies such as ion etching cleaning and ion beam depositing.Voltage is applied on the anode on the ion beam during work, and the form of power of employing is a DC power supply.Operating voltage (discharge voltage) scope is 400～3000V, and operating current is 80mA～600mA.Being applied to on-chip voltage is negative potential, thereby forms an electrical potential difference (electric field) between ion beam and substrate.This electromagnetic field speeding-up ion, making more, polyatom is formed ion flow by ionization.
Thermal source in present heat pipe system and the high heat conduction DLC of the utility model coat system is carried out the heat conductivility test, testing apparatus is by thermal source, radiator is formed with the Heat Conduction Material that is connected 2 devices, and Heat Conduction Material is made up of with the copper plate of high heat conduction DLC coating heat pipe and coating respectively.
Test result is as shown in the table, and the cooling system radiating efficiency of being made up of with the copper plate of high heat conduction DLC coating coating is significantly better than the radiating efficiency of being made up of present heat pipe technology.
| Test mode | The temperature of thermal source in the heat pipe system (℃) | Heat source temperature in the high heat conduction DLC coat system (℃) |
| 1 | 55 | 48 |
| 2 | 95 | 85 |
| 3 | 120 | 105 |
Table 1
Further test result shows, middle diamond phase (sp3) proportion in the DLC coating and thickness not simultaneously, the radiating effect in the cooling system is also different, and is as shown in table 2.
| The examination state | Diamond phase (sp in the DLC coating 3) begin to remain at 40% from bottom, the temperature of thermal source (℃) | Diamond phase (sp in the DLC coating 3) begin to remain at 70% from bottom, the temperature of thermal source (℃) | Diamond phase (sp in the DLC coating 3) begin progressively to be increased to 70% by 40% all the time from bottom, the temperature of thermal source (℃) | Diamond phase (sp in the DLC coating 3) begin progressively to be increased to 80% by 40% all the time from bottom, the temperature of thermal source (℃) |
| 54 | 50 | 48 | 48 | |
| 93 | 90 | 85 | 85 | |
| 117 | 110 | 105 | 105 |
Table 2
Thus, the composition of the outermost second layer diamond-like coating of the utility model is selected to be made as 20%～60% graphite phase, and 80%～40% diamond phase.
Experiment shows that when coating layer thickness was 1 micron, the temperature under the equal conditions on the thermal source can rise 5～7% in addition; When coating layer thickness during greater than 3 microns, the temperature under the equal conditions on the thermal source can be the same with the resulting result of 2 micron coatings.Therefore consider from the angle of saving cost, with the THICKNESS CONTROL of DLC coating in the utility model in 2 microns.
Although be the example purpose, preferred implementation of the present utility model is disclosed, but those of ordinary skill in the art will recognize that under situation about not breaking away from by the disclosed scope and spirit of the present utility model of appending claims, various improvement, increase and replacement are possible.
Claims (6)
1. novel heat sink, comprise: with the heat-conducting piece (7) of thermal source butt and the radiating fin (8) affixed with described heat-conducting piece (7), it is characterized in that: described heat-conducting piece (7) is made up of metal base and the high-termal conductivity coating that is deposited on the described metal base, described high-termal conductivity coating comprises two-layer diamond-like coating, be provided with first chrome coating (2) of solid attached effect between described ground floor diamond-like coating (3) and the metal base (1), be provided with between described ground floor diamond-like coating (3) and the second layer diamond-like coating (5) and be used for heat conducting second chrome coating (4).
2. novel heat sink according to claim 1 is characterized in that: described first chrome coating (2) thickness is 20～40 nanometers.
3. novel heat sink according to claim 1 is characterized in that: described ground floor diamond-like coating (3) thickness is 1.2～1.4 microns.
4. novel heat sink according to claim 1 is characterized in that: described second chrome coating (4) thickness is 10～20 nanometers.
5. novel heat sink according to claim 1 is characterized in that: described second layer diamond-like coating (5) thickness is 1.0～1.2 microns.
6. novel heat sink according to claim 1 is characterized in that: described metal base (1) is red copper or aluminium alloy or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201669617U CN201725788U (en) | 2010-04-14 | 2010-04-14 | Novel radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201669617U CN201725788U (en) | 2010-04-14 | 2010-04-14 | Novel radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201725788U true CN201725788U (en) | 2011-01-26 |
Family
ID=43494137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201669617U Expired - Fee Related CN201725788U (en) | 2010-04-14 | 2010-04-14 | Novel radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201725788U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853822A (en) * | 2010-04-14 | 2010-10-06 | 星弧涂层科技(苏州工业园区)有限公司 | Novel heat sink and production method thereof |
| CN103718290A (en) * | 2011-09-26 | 2014-04-09 | 富士通株式会社 | Heat-Dissipating Material And Method For Producing Same, And Electronic Device And Method For Producing Same |
| CN103794443A (en) * | 2011-12-31 | 2014-05-14 | 四川虹欧显示器件有限公司 | Heat radiation section bar for plasma screen circuit heat radiation and making method for heat radiation section bar |
| CN114262868A (en) * | 2021-12-03 | 2022-04-01 | 中船重工重庆液压机电有限公司 | Surface DLC coating bonding method for copper alloy outer shim |
-
2010
- 2010-04-14 CN CN2010201669617U patent/CN201725788U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853822A (en) * | 2010-04-14 | 2010-10-06 | 星弧涂层科技(苏州工业园区)有限公司 | Novel heat sink and production method thereof |
| CN103718290A (en) * | 2011-09-26 | 2014-04-09 | 富士通株式会社 | Heat-Dissipating Material And Method For Producing Same, And Electronic Device And Method For Producing Same |
| US9635784B2 (en) | 2011-09-26 | 2017-04-25 | Fujitsu Limited | Heat dissipation material and method of manufacturing thereof, and electronic device and method of manufacturing thereof |
| US10396009B2 (en) | 2011-09-26 | 2019-08-27 | Fujitsu Limited | Heat dissipation material and method of manufacturing thereof, and electronic device and method of manufacturing thereof |
| CN103794443A (en) * | 2011-12-31 | 2014-05-14 | 四川虹欧显示器件有限公司 | Heat radiation section bar for plasma screen circuit heat radiation and making method for heat radiation section bar |
| CN114262868A (en) * | 2021-12-03 | 2022-04-01 | 中船重工重庆液压机电有限公司 | Surface DLC coating bonding method for copper alloy outer shim |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Suzhou Reci Optoelectronics Technology Co., Ltd. Assignor: Stararc Coating Technologies (Suzhou) Co., Ltd. Contract record no.: 2012320010059 Denomination of utility model: Novel heat sink and production method thereof Granted publication date: 20110126 License type: Exclusive License Record date: 20120401 |
|
| ASS | Succession or assignment of patent right |
Owner name: SUZHOU RECHI PHOTOELECTRIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: STARARC COATING TECHNOLOGIES (SUZHOU) CO., LTD. Effective date: 20130304 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 215022 SUZHOU, JIANGSU PROVINCE TO: 215000 SUZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130304 Address after: Suzhou City, Jiangsu province 215000 Industrial Park Weiting Kezhi Road No. 1 Patentee after: Suzhou Reci Optoelectronics Technology Co., Ltd. Address before: 215022, 2, Tong Jing Road, Suzhou Industrial Park, Jiangsu, China Patentee before: Stararc Coating Technologies (Suzhou) Co., Ltd. |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Suzhou Reci Optoelectronics Technology Co., Ltd. Assignor: Stararc Coating Technologies (Suzhou) Co., Ltd. Contract record no.: 2012320010059 Date of cancellation: 20130222 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20170414 |
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| CF01 | Termination of patent right due to non-payment of annual fee |