CN112555784B - Heat transfer working medium for enhancing efficiency of high-power LED lamp radiator - Google Patents
Heat transfer working medium for enhancing efficiency of high-power LED lamp radiator Download PDFInfo
- Publication number
- CN112555784B CN112555784B CN202011163132.8A CN202011163132A CN112555784B CN 112555784 B CN112555784 B CN 112555784B CN 202011163132 A CN202011163132 A CN 202011163132A CN 112555784 B CN112555784 B CN 112555784B
- Authority
- CN
- China
- Prior art keywords
- heat transfer
- led lamp
- working medium
- transfer working
- temperature
- 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.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/51—Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The invention discloses a heat transfer working medium for enhancing the efficiency of a high-power LED lamp radiator, which comprises the following components in percentage by mass: 29-31% of chlorotetrafluoroethane, 68.9-70.8% of acetone and 0.01-1% of three-dimensional graphene. The heat transfer working medium can control the temperature of the light-emitting panel of the LED lamp body of more than 100W to be below 60 ℃, the temperature of the panel is more uniform, the temperature difference does not exceed 1 ℃, the temperature of the lamp body can be reduced by 2-7 ℃, the influence of the installation angle of the LED lamp body on the temperature of the lamp body can be reduced, and the projection range of the LED lamp is expanded; furthermore, the heat transfer working medium has low boiling point, stable state, simple and convenient preparation method and high heat transfer efficiency, can solve the heat transfer problem of the high-power LED lamp, and can prolong the service life of the high-power LED lamp by more than 2.5 times.
Description
Technical Field
The invention relates to the technical field of phase change heat transfer, in particular to a heat transfer working medium for enhancing the efficiency of a high-power LED lamp radiator.
Background
At present, the photoelectric conversion efficiency of the LED still needs to be improved, and more than 65% of electric energy is converted into heat energy to be released. The LED lamp body temperature is too high, the light attenuation of the lamp beads can be accelerated, the service life of an LED lamp is directly influenced, the normal work of a high-power LED lamp bead product (the power exceeds 100W and is a high-power LED lamp) is ensured, the heat dissipation work is needed, and how to timely and effectively convey the heat generated by the high-power LED lamp away becomes a restriction factor of LED development.
The existing high-power LED radiator mainly adopts a heat pipe and vapor chamber phase change technology, the process of manufacturing a high-power heat conductor by the heat pipe technology is complex, the cost is high, the temperature uniformity is poor when the high-power heat conductor is spliced, the heat conduction dead angle cannot be overcome, the instant temperature uniformity effect cannot be realized, the problem of directional heat conduction cannot be solved, and the formed radiator cannot be used in any direction and has a small application range. The published invention application 201921249253.7 designs a novel heat pipe heat dissipation structure for an LED down lamp, wherein a heat pipe is arranged in a radiator base body, the design can enhance the heat dissipation capacity of a lamp body, but the novel heat pipe heat dissipation structure has the characteristics of complex installation structure, uneven temperature of a heat dissipation layout of the lamp body and the like.
The soaking plate phase-change radiator has high response speed, uniform temperature of the heating panel and little influence of the irradiation angle of the lamp body, thereby being widely used for radiating high-power LEDs. The heat dissipation efficiency of the vapor chamber radiator is influenced by the phase change working medium, so that the development of an efficient and feasible heat transfer working medium is very necessary for a high-power LED lamp. The existing phase change working medium has the defects of high phase change temperature, low latent heat of vaporization, low phase change heat transfer coefficient and the like. The disclosed technology of invention application No. 201410172539.5 designs an LED flat plate radiator for high-power LED heat dissipation, the technology injects phase-change working medium into a flat plate cavity body, the phase-change heat-transfer medium in the cavity is heated and boiled, and steam is rapidly filled into each part of the cavity, so that the temperature of each point of a bottom plate tends to be consistent, and the heat dissipation uniformity is improved. At present, phase-change working media used in the market comprise acetone, ethanol, R22 and the like, and compared with a pure heat transfer working medium, the mixed nanofluid has higher heat conductivity coefficient, so that the heat transfer working medium can take away more heat from a heat source surface in unit time, and the temperature of the heat source is rapidly reduced; meanwhile, in the phase change heat transfer process, the nano particles have high specific surface area and are in heat transfer with the liquid working mediumMore energy exchange is realized, so that the energy efficiency of the heat source absorbing surface is improved; in the boiling process, the nano particles can reduce the length of a three-phase contact line of a contact surface of the vapor bubble and a heat source and reduce the surface tension of the contact surface, so that the generation of boiling vapor bubbles is promoted, the vapor bubble separation frequency is increased, the separation diameter is reduced, and the effect of enhancing boiling heat transfer is achieved. For the selection of nanoparticles, Fe is currently generally used 2 O 3 、Al 2 O 3 、SiO 2 Nano-particle materials such as CuO and the like and phase-change working media such as acetone, ethanol, R22 and the like are prepared into nano-fluid for strengthening the heat dissipation of the LED lamp body radiator, and the published invention application numbers 201410521191.6, 201410526065, X, 201410522681.8 and 201410522702.6 respectively use Fe 2 O 3 、Al 2 O 3 、SiO 2 The invention can effectively improve the heat transfer performance of the heat exchanger, but has the problems of limited heat transfer efficiency, unstable nanofluid and the like due to the fact that particles block foam metal liquid absorption cores to activate vapor bubbles, and the like, so that the heat transfer performance of the LED lamp body radiator is very necessary to be further improved. Solving these problems can be started by improving the heat transfer coefficient of the nano-particle material and improving the stability of the nano-fluid. The heat transfer coefficient of the graphene material is Fe 2 O 3 、Al 2 O 3 、SiO 2 The heat transfer coefficient of nano materials such as CuO and the like is more than 10 times, so that the graphene material is widely used in the field of heat transfer enhancement, and for preparing nano fluid enhanced LED heat dissipation by using the graphene nano material and a heat transfer working medium, although related researches relate to the use of graphene nano fluid for enhancing boiling heat transfer, the finding that the enhanced boiling heat transfer performance of the graphene nano fluid is mainly related to the structural characteristics, particle size and mass concentration of graphene, the disclosed technical invention does not relate to the related technical invention that graphene is used for enhancing the heat dissipation of an LED lamp body at present, and is mainly and intensively used at the joint of the lamp body and the lamp body of the lamp body for enhancing the heat conduction of the heat dissipation of the panel and the lamp body, such as the authorized invention No. 211289725; the published patent application No. 201921485616.7, graphene heat sink was designed directly for enhanced LED heat dissipation. From earlier stageThe three-dimensional structure graphene which is mainly researched and developed is applied to prepare patent application No. 201810410572.5, compared with other graphene structure forms, the surface of the three-dimensional structure graphene is porous, the specific surface area is large, the three-dimensional structure graphene and a heat transfer working medium generate more heat exchange in the boiling process of the heat transfer working medium, more heat in liquid can be taken away under the same condition, and other types of graphene of the three-dimensional structure do not exist, so that the three-dimensional structure graphene nanofluid has a better enhanced boiling heat transfer effect compared with other types of graphene nanofluid. In order to further improve the heat transfer performance of the high-power LED lamp radiator, porous three-dimensional structure graphene with large specific surface area is added into a heat transfer working medium, and a novel mixed enhanced phase change heat transfer working medium is developed, so that the heat transfer medium has important significance for enhancing the heat dissipation of the high-power LED lamp and prolonging the service life of the LED lamp.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention provides a heat transfer working medium for strengthening a high-power LED lamp soaking plate radiator, aiming at the technical problems of single phase change working medium and general heat dissipation effect in the prior art, and aiming at obtaining the heat transfer working medium with low boiling point, stable state and high heat transfer efficiency.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a heat transfer working medium for enhancing the efficiency of a high-power LED lamp radiator comprises the following components in percentage by mass: 29-31% of chlorotetrafluoroethane, 68.9-70.8% of acetone and 0.01-1% of three-dimensional graphene.
The heat transfer working medium for enhancing the efficiency of the high-power LED lamp radiator comprises the following components in percentage by mass: 30% of chlorotetrafluoroethane, 69-69.99% of acetone and 0.01% -1% of three-dimensional graphene.
Preferably, the three-dimensional structure graphene is a powder material which is composed of two-dimensional graphene sheets and has a honeycomb-like structure, has an ultrahigh surface area of more than 1000 square meters per gram, contains a large number of microporous structures, and has structural basic characteristics meeting the requirements of technical standards DB 45/T1421-2016 and DB 45/T1425-2016.
When the heat transfer working medium for enhancing the efficiency of the high-power LED lamp radiator is used, the following components are weighed according to mass percentage: 29-31% of chlorotetrafluoroethane, 68.9-70.8% of acetone and 0.01-1% of three-dimensional graphene, then uniformly mixing the components by mechanical vibration to obtain a mixture, vacuumizing a soaking plate of the LED lamp body by heat transfer, and injecting the mixture into an LED cavity to obtain the LED lamp.
Compared with the prior art, the invention has the following beneficial effects:
the heat transfer working medium can control the temperature of the light-emitting panel of the LED lamp body of more than 100W to be below 60 ℃, the temperature of the panel is more uniform, the temperature difference does not exceed 1 ℃, the temperature of the lamp body can be reduced by 2-7 ℃, the influence of the installation angle of the LED lamp body on the temperature of the lamp body can be reduced, and the projection range of the LED lamp is expanded; furthermore, the heat transfer working medium has low boiling point, stable state, simple and convenient preparation method and high heat transfer efficiency, can solve the heat transfer problem of the high-power LED lamp, and can prolong the service life of the high-power LED lamp by more than 2.5 times.
Drawings
FIG. 1 is a graph showing the temperature of a heat transfer working medium obtained in example 1 of the present invention as compared with the temperature of a heat transfer working medium panel obtained in comparative example 1.
FIG. 2 is a graph showing a comparison of temperature distributions at different temperature measuring points of the heat transfer medium panel obtained in example 1 of the present invention and the heat transfer medium panel obtained in comparative example 1.
FIG. 3 is a comparison of the temperatures of different temperature measuring points of the heat transfer medium panel obtained in example 2 of the present invention and the heat transfer medium panel obtained in comparative example 2.
FIG. 4 is a graph comparing the temperature distribution at different temperature measuring points of the heat transfer medium panel obtained in example 2 of the present invention and the heat transfer medium panel obtained in comparative example 2.
FIG. 5 is a comparison of the effect of the installation angle of the heat transfer working medium obtained in example 1 of the present invention and the heat transfer working medium obtained in comparative example 1 on the angle temperature of the luminescent panel.
Detailed Description
The following detailed description is to be read in connection with the accompanying drawings, but it is to be understood that the scope of the invention is not limited to the specific embodiments. The raw materials and reagents used in the examples were all commercially available unless otherwise specified. The three-dimensional graphene adopted in the embodiment is prepared according to the patent application with the application number of 201810410572.5, the powder material which is composed of two-dimensional graphene sheets and has a honeycomb-like structure has an ultrahigh surface area of more than 1000 square meters per gram, and contains a large number of microporous structures, and the structural basic characteristics of the powder material meet the requirements of technical standards of DB 45/T1421-2016 and DB 45/T1425-2016.
Example 1
A heat transfer working medium for enhancing the efficiency of a high-power LED lamp radiator is prepared by weighing the following components: 30g of chlorotetrafluoroethane, 69.9g of acetone and 0.01g of three-dimensional graphene, then mixing the chlorotetrafluoroethane, the acetone and the three-dimensional graphene, and mechanically vibrating for 3 hours after mixing to obtain the heat transfer working medium for enhancing the efficiency of the high-power LED lamp radiator. The boiling points of the heat transfer working media at different pressure conditions were measured as shown in table 1.
TABLE 1 State parameters of Heat transfer media
| Absolute pressure/kPa | 140 | 120 | 100 | 80 | 60 | 40 |
| Phase transition temperature/. degree.C | 51.0 | 46.2 | 40.7 | 34.4 | 26.5 | 16.2 |
Example 2
A heat transfer working medium for enhancing the efficiency of a high-power LED lamp radiator is prepared by weighing the following components: 30g of chlorotetrafluoroethane, 69g of acetone and 1g of three-dimensional graphene, then mixing the chlorotetrafluoroethane, the acetone and the three-dimensional graphene, and mechanically vibrating for 3 hours after mixing to obtain the heat transfer working medium for enhancing the efficiency of the high-power LED lamp radiator.
Example 3
A heat transfer working medium for enhancing the efficiency of a high-power LED lamp radiator is prepared by weighing the following components: 29g of chlorotetrafluoroethane, 70.8g of acetone and 0.2g of three-dimensional graphene, then mixing the chlorotetrafluoroethane, the acetone and the three-dimensional graphene, and mechanically vibrating for 3 hours after mixing to obtain the heat transfer working medium for enhancing the efficiency of the high-power LED lamp radiator.
Example 4
A heat transfer working medium for enhancing the efficiency of a high-power LED lamp radiator is prepared by weighing the following components: 31g of chlorotetrafluoroethane, 68.9g of acetone and 0.1g of three-dimensional graphene, then mixing the chlorotetrafluoroethane, the acetone and the three-dimensional graphene, and mechanically vibrating for 3 hours after mixing to obtain the heat transfer working medium for enhancing the efficiency of the high-power LED lamp radiator.
Comparative example 1
A heat transfer working medium for the efficiency of a radiator of an LED lamp is prepared by weighing the following components: 30g of chlorotetrafluoroethane and 69.9g of acetone, then mixing the chlorotetrafluoroethane and the acetone, and mechanically vibrating for 3 hours after mixing to obtain the heat transfer working medium for the efficiency of the LED lamp radiator.
Comparative example 2
A heat transfer working medium for the efficiency of a radiator of an LED lamp is prepared by weighing the following components: 30g of chlorotetrafluoroethane and 69g of acetone, then mixing the chlorotetrafluoroethane and the acetone, and mechanically vibrating for 3 hours after mixing to obtain the heat transfer working medium for the efficiency of the LED lamp radiator.
Applications of
Application example 1:
the heat transfer working mediums prepared in example 1 and comparative example 1 were respectively injected into the soaking plate radiator of the 200W high-power LED lamp body shown in the invention application with the application number of 201410172539.5 (the soaking plate radiator was vacuumized first), and after the lamp body illumination was normally stable, the light-emitting panel temperature of the lamp body was stabilized at 78 ℃. Comparing them, the heat transfer working medium of example 1 can make the light emitting panel lamp body temperature 5-7 deg.c lower than that of comparative example 1 (as shown in fig. 1), and the panel temperature more uniform, the temperature difference not exceeding 1 deg.c (as shown in fig. 2).
Application example 2:
the heat transfer working mediums prepared in example 2 and comparative example 1 were respectively injected into a soaking plate radiator of a 200W high-power LED lamp body shown in the invention application with the application number of 201410172539.5 (the soaking plate radiator is vacuumized first), and after the lamp body is normally and stably illuminated, the light emitting panel temperature of the lamp body is stabilized at 60 ℃. Comparing the two, the heat transfer working medium of example 2 can make the luminescent panel lamp body temperature 25 ℃ (as shown in fig. 3) lower than that of comparative example 1, the panel temperature is more uniform, the temperature difference is not more than 0.9 ℃ (as shown in fig. 4), and the service life of the lamp bead is improved by more than 2.5 times.
Application example 3:
the 200W high-power LED lamp body disclosed in the invention application with the application number of 201410172539.5 is respectively installed according to the angles of 0 degrees, 15 degrees, 30 degrees, 45 degrees, 60 degrees, 75 degrees and 90 degrees, and then the heat transfer working media of the preparation of the embodiment 1 and the comparative embodiment 1 are respectively injected. The maximum temperature difference of the light emitting panel temperatures of the LED lamps with different installation angles under the action of the heat transfer working medium is found to be 1.9 ℃, and the maximum temperature difference of the light emitting panel temperatures of the LED lamps with different installation angles in comparative example 1 is 6.5 ℃ (shown in figure 5), which shows that the heat transfer working medium can reduce the installation angles and can reduce the influence of the installation angles of the LED lamp bodies on the lamp body temperatures, so that the projection range of the LED lamps can be expanded.
The three-dimensional structure graphene in the heat transfer working medium is prepared according to the patent application with the application number of 201810410572.5, the three-dimensional structure graphene, chlorotetrafluoroethane and acetone are prepared into a mixed working medium according to a certain proportion, a vapor chamber of an LED lamp body is subjected to heat transfer and vacuumization, the heat transfer phase change working medium is injected into an LED cavity, the working medium is rapidly vaporized when meeting a heat source under the vacuum state, the medium is uniformly filled in the whole sealed space and rapidly diffused, the heat is transferred to the whole sealed cavity while the heat energy is consumed by molecular motion, and the heat in the cavity can be transferred to the air due to the existence of a radiating fin which conducts heat with air in a convection mode above the vapor chamber, so that the pressure in the cavity is stabilized in a certain range, and the bottom temperature phase change temperature of the mixed phase change working medium is kept. Meanwhile, the phase change working medium in the soaking plate is in a microgravity state, the temperature of the lamp bodies at different installation angles is relatively uniform, and the prepared soaking plate heat transmitter can be used in any direction, so the microgravity molecular heat transmission medium has the advantages of low boiling point, stable state, simple and convenient process and strong phase change heat transmission coefficient, and can solve the problem of high-power heat transmission.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (3)
1. A heat transfer working medium for enhancing the efficiency of a high-power LED lamp radiator is characterized by comprising the following components in percentage by mass: 29-31% of chlorotetrafluoroethane, 68.9-70.8% of acetone and 0.01-1% of three-dimensional graphene;
the three-dimensional structure graphene is a powder material which is composed of two-dimensional graphene sheets and has a honeycomb-like structure, has an ultrahigh surface area of more than 1000 square meters per gram, contains a large number of microporous structures, and has the structural basic characteristics meeting the requirements of technical standards DB 45/T1421-2016 and DB 45/T1425-2016.
2. The heat transfer working medium according to claim 1, comprising the following components in percentage by mass: 30% of chlorotetrafluoroethane, 69-69.99% of acetone and 0.01% -1% of three-dimensional graphene.
3. A method for using a heat transfer working medium according to any one of claims 1-2, characterized in that the following components are weighed according to mass percent: 29-31% of chlorotetrafluoroethane, 68.9-70.8% of acetone and 0.01-1% of three-dimensional graphene, then uniformly mixing the components by mechanical vibration to obtain a mixture, vacuumizing a soaking plate of the LED lamp body by heat transfer, and injecting the mixture into an LED cavity to obtain the LED lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011163132.8A CN112555784B (en) | 2020-10-27 | 2020-10-27 | Heat transfer working medium for enhancing efficiency of high-power LED lamp radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011163132.8A CN112555784B (en) | 2020-10-27 | 2020-10-27 | Heat transfer working medium for enhancing efficiency of high-power LED lamp radiator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112555784A CN112555784A (en) | 2021-03-26 |
| CN112555784B true CN112555784B (en) | 2022-09-13 |
Family
ID=75041367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011163132.8A Active CN112555784B (en) | 2020-10-27 | 2020-10-27 | Heat transfer working medium for enhancing efficiency of high-power LED lamp radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112555784B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1976916A1 (en) * | 2006-01-10 | 2008-10-08 | Dow Global Technologies Inc. | Improved foams for vehicular energy absorbance |
| TW201331352A (en) * | 2011-12-16 | 2013-08-01 | Biofilm Ip Llc | Cryogenic injection compositions, systems and methods for cryogenically modulating flow in a conduit |
| WO2016115225A1 (en) * | 2015-01-14 | 2016-07-21 | Immunolight, Llc. | Non-invasive systems and methods for treatment of a host carrying a virus with photoactivatable drugs |
| CN107556450A (en) * | 2016-06-30 | 2018-01-09 | 翁秋梅 | A kind of dynamic aggregation thing and application with hybrid cross-linked network |
| WO2018028365A1 (en) * | 2016-08-09 | 2018-02-15 | 翁秋梅 | Dynamic polymer with hybrid cross-linked network and application thereof |
| CN107978384A (en) * | 2017-11-27 | 2018-05-01 | 西安工程大学 | A kind of electrocondution slurry aerosol and preparation method thereof |
| CN109486342A (en) * | 2018-09-05 | 2019-03-19 | 广西大学 | A kind of anticorrosive paint of D structure graphene reinforced epoxy |
| CN111446220A (en) * | 2020-03-31 | 2020-07-24 | 广西大学 | Radiator for short-time junction temperature protection of thyristor and protection time obtaining method thereof |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA923389A (en) * | 1968-05-20 | 1973-03-27 | Union Carbide Corporation | Heat transfer process |
| US20070213418A1 (en) * | 2004-05-18 | 2007-09-13 | Vermilion Donn R | Asphalt-filled polymers |
| TWI537509B (en) * | 2010-06-15 | 2016-06-11 | 拜歐菲樂Ｉｐ有限責任公司 | Methods, devices and systems for extraction of thermal energy from a heat conducting metal conduit |
| US9605193B2 (en) * | 2012-10-19 | 2017-03-28 | The Hong Kong University Of Science And Technology | Three dimensional interconnected porous graphene-based thermal interface materials |
| US9856272B2 (en) * | 2015-11-06 | 2018-01-02 | The Board Of Regents Of The University Of Texas System | [1-3]-thiazine-fulleropyrrolo derivatives of C60 and C70 as HIV-inhibitor agents |
| CN106986960A (en) * | 2016-11-09 | 2017-07-28 | 广西大学 | It is a kind of to prepare graphene three-dimensional construction method of the powder body material containing carbon polymer |
| CN108690454B (en) * | 2017-03-17 | 2020-12-25 | 山东圣泉新材料股份有限公司 | Graphene heat dissipation coating and preparation method and application thereof |
| EP3602641A4 (en) * | 2017-03-20 | 2021-01-13 | Charles J. Cauchy | Heating and cooling technologies including temperature regulating pad wrap and technologies with liquid system |
| CN107246579A (en) * | 2017-07-27 | 2017-10-13 | 湖州明朔光电科技有限公司 | Graphene intelligence joins LED headlights |
| CN110873363A (en) * | 2018-09-01 | 2020-03-10 | 广西大学 | Air conditioner with graphene added into refrigerant and graphene coated on heat exchange component |
-
2020
- 2020-10-27 CN CN202011163132.8A patent/CN112555784B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1976916A1 (en) * | 2006-01-10 | 2008-10-08 | Dow Global Technologies Inc. | Improved foams for vehicular energy absorbance |
| TW201331352A (en) * | 2011-12-16 | 2013-08-01 | Biofilm Ip Llc | Cryogenic injection compositions, systems and methods for cryogenically modulating flow in a conduit |
| WO2016115225A1 (en) * | 2015-01-14 | 2016-07-21 | Immunolight, Llc. | Non-invasive systems and methods for treatment of a host carrying a virus with photoactivatable drugs |
| CN107556450A (en) * | 2016-06-30 | 2018-01-09 | 翁秋梅 | A kind of dynamic aggregation thing and application with hybrid cross-linked network |
| WO2018028365A1 (en) * | 2016-08-09 | 2018-02-15 | 翁秋梅 | Dynamic polymer with hybrid cross-linked network and application thereof |
| CN107978384A (en) * | 2017-11-27 | 2018-05-01 | 西安工程大学 | A kind of electrocondution slurry aerosol and preparation method thereof |
| CN109486342A (en) * | 2018-09-05 | 2019-03-19 | 广西大学 | A kind of anticorrosive paint of D structure graphene reinforced epoxy |
| CN111446220A (en) * | 2020-03-31 | 2020-07-24 | 广西大学 | Radiator for short-time junction temperature protection of thyristor and protection time obtaining method thereof |
Non-Patent Citations (3)
| Title |
|---|
| Enhanced Oxygen Reduction Reaction by In Situ Anchoring Fe2N Nanoparticles on Nitrogen-Doped Pomelo Peel-Derived Carbon;Yiqing Wang等;《Nanomaterials》;20171122;第17卷(第11期);全文 * |
| Three-dimensional graphene networks: synthesis, properties and applications;Yanfeng Ma等;《National Science Review》;20141217;全文 * |
| 石墨烯在散热及热管理中的应用;张勇等;《电子元件与材料》;20170930;第36卷(第9期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112555784A (en) | 2021-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020253094A1 (en) | Boron nitride nanotube aerogel/phase change heat conductive composite material and preparation method therefor | |
| CN102942906B (en) | High thermal conductivity and low viscosity water base composite heat conductivity filler nanofluid and preparation method thereof | |
| CN103423648B (en) | A kind of magnetic fluid heat pipe high-powered LED lamp | |
| CN103528035B (en) | Great power LED integrated thermal heat dissipating method and device | |
| CN108997977A (en) | A kind of enhanced thermal conduction organic phase change energy storage material and preparation method thereof | |
| CN112226211A (en) | Preparation method of high-thermal-conductivity composite shape-stabilized phase change material | |
| CN109612314A (en) | Phase-change heat radiating device | |
| CN104676545A (en) | Heat absorbing device, heat radiating device and LED (light-emitting diode) mining lamp radiating system | |
| CN111072318B (en) | Graphene aerogel phase-change composite material with oriented heat conduction characteristic and preparation method thereof | |
| CN201854544U (en) | Condensing radiation heat dissipation plate | |
| CN108997975A (en) | A kind of enhanced thermal conduction MOFs phase-changing energy storage material and preparation method thereof | |
| CN112555784B (en) | Heat transfer working medium for enhancing efficiency of high-power LED lamp radiator | |
| CN108050497A (en) | For the side-emitting LED lamp radiator under superelevation heat flow density | |
| CN110041895B (en) | Heat storage and transfer material and preparation method thereof | |
| CN2720631Y (en) | Fin heat-tube radiator | |
| CN110707250A (en) | Fin type phase change heat dissipation device | |
| CN204513305U (en) | Heat sink, heat abstractor and LED bay light cooling system | |
| CN101659857A (en) | Formulation and manufacturing method of efficient heat-transfer heat-pipe working medium | |
| CN201344753Y (en) | Combined flat-plate heat tube radiator with complex cavity | |
| CN108264771A (en) | A kind of preparation method and applications of graphene heat-conducting silicone grease | |
| CN1869574A (en) | Radiation core and radiator | |
| CN204534200U (en) | A kind of LED bay light | |
| CN203131759U (en) | Nanofluid superconducting radiator | |
| CN105091645A (en) | Microgravity molecule heat-transferring heat conductor and application | |
| CN101509654A (en) | Nano-radiator carbon nano-material heat radiator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |