CN113015413B - Heat-conducting silica gel sheet for solar inverter and preparation method thereof - Google Patents
Heat-conducting silica gel sheet for solar inverter and preparation method thereof Download PDFInfo
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- CN113015413B CN113015413B CN202110229824.6A CN202110229824A CN113015413B CN 113015413 B CN113015413 B CN 113015413B CN 202110229824 A CN202110229824 A CN 202110229824A CN 113015413 B CN113015413 B CN 113015413B
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 239000000741 silica gel Substances 0.000 title claims abstract description 91
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 91
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 51
- 238000003756 stirring Methods 0.000 claims description 43
- 230000017525 heat dissipation Effects 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 19
- 239000003054 catalyst Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 14
- 229920002545 silicone oil Polymers 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- 229910052710 silicon Inorganic materials 0.000 claims description 13
- 239000010703 silicon Substances 0.000 claims description 13
- 229920001296 polysiloxane Polymers 0.000 claims description 8
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 239000007822 coupling agent Substances 0.000 claims description 7
- 239000003431 cross linking reagent Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 7
- 239000003063 flame retardant Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 7
- 229910052697 platinum Inorganic materials 0.000 claims description 7
- 239000012744 reinforcing agent Substances 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000003607 modifier Substances 0.000 claims 1
- 230000004580 weight loss Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 8
- 229940124024 weight reducing agent Drugs 0.000 description 6
- 239000013585 weight reducing agent Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction 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
- H05K7/20509—Multiple-component heat spreaders; Multi-component heat-conducting support plates; Multi-component non-closed heat-conducting structures
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The invention relates to the technical field of silica gel, in particular to a heat-conducting silica gel sheet for a solar inverter, which comprises a heat-conducting silica gel substrate, wherein the outer side of the heat-conducting silica gel substrate is connected with a fixing frame, one side of the heat-conducting silica gel substrate is connected with a plurality of bulges, each bulge is connected with a plurality of heat-conducting columns, one side of each heat-conducting column far away from the bulge is connected with a heat-radiating plate, both sides of the heat-radiating plate are provided with mounting holes, and one side of the heat-radiating plate far away from the heat-conducting columns is connected with a dispersing film. The invention also provides a preparation method of the heat-conducting silica gel sheet for the solar inverter. According to the invention, the heat on the inverter is guided by the heat-conducting silica gel substrate, the heat on the heat-conducting silica gel substrate is guided into the heat-radiating plate from the heat-conducting columns, and after being dispersed by the dispersing film, the heat on the heat-radiating plate is absorbed by the radiator arranged on the heat-radiating plate, so that the heat on the inverter can be rapidly and effectively guided out, the inverter is prevented from being damaged due to high temperature, and the heat-conducting speed of the heat-conducting silica gel sheet is high.
Description
Technical Field
The invention relates to the technical field of silica gel, in particular to a heat-conducting silica gel sheet for a solar inverter and a preparation method thereof.
Background
The inverter is mainly responsible for controlling the conversion of direct current electric energy output by the solar cell module into stable voltage and frequency alternating current electric energy to be fed into a power grid, and if the direct current voltage is lower, the direct current electric energy is boosted through the alternating current transformer, so that standard alternating current voltage and frequency are obtained. The heat dissipation problem of a MOSFET with a high heat flux density directly affects the life of the MOSFET and the thermoelectric conversion efficiency. In order to ensure normal operation of the inverter, a heat-conducting silica gel sheet is usually arranged on the inverter, heat on the inverter is led out, damage to the inverter due to high temperature is avoided, the heat conduction speed of the existing heat-conducting silica gel sheet is low, and the heat on the inverter cannot be led out rapidly, so that the inverter is damaged.
Disclosure of Invention
The invention aims to solve the defects that the heat on an inverter cannot be rapidly led out due to low heat conduction speed of a heat conduction silica gel sheet in the prior art, so that the inverter is damaged, and provides a heat conduction silica gel sheet for a solar inverter and a preparation method thereof.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a heat conduction silica gel piece for solar inverter, includes the heat conduction silica gel base plate, the outside of heat conduction silica gel base plate is connected with the mount, one side of heat conduction silica gel base plate is connected with a plurality of arch, every all be connected with a plurality of heat conduction post on the arch, every the heat conduction post is kept away from bellied one side all is connected with the heating panel, the mounting hole has all been seted up to the both sides of heating panel, the heating panel is kept away from one side of heat conduction post is connected with the dispersion medium.
Preferably, the fixing frame comprises a fixing frame, the fixing frame is connected with the heat-conducting silica gel substrate, and a groove is formed in one side, away from the heat-conducting silica gel substrate, of the fixing frame.
Preferably, an anti-slip layer is connected to one side of the heat-conducting silica gel substrate away from the protrusions.
Preferably, the heat-conducting silica gel substrate is provided with connecting frames between the protrusions, each connecting frame is provided with a plurality of spheres, and one side of each sphere is connected with the heat dissipation plate.
Preferably, the dispersion film is a release film.
The invention also provides a preparation method of the heat-conducting silica gel sheet for the solar inverter, which comprises the following steps:
s1: introducing the silica gel raw material into a stirrer for stirring at 900-1500r/min for 30-40min at 70-90deg.C, adding regulator for stirring at 35-40deg.C for 30-60min;
s2: placing the stirred solution into a cleaned mold for sealing, controlling the temperature to be 25-30 ℃, and cooling to obtain a heat-conducting silica gel substrate containing a solvent;
s3: drying the heat-conducting silica gel substrate containing the solvent to obtain a heat-conducting silica gel substrate;
s4: mounting the heat conduction column and the heat dissipation plate on the protrusion on the heat conduction silicon substrate;
s5: and bonding a release film on the heat dissipation plate to obtain the heat conduction silica gel sheet.
Preferably, the silica gel raw material is a mixture of silicone oil, a coupling agent and a platinum catalyst.
Preferably, the regulator is a mixture of a cross-linking agent, a flame retardant, a weight reducing agent and a reinforcing agent.
Preferably, the preparation steps of the release film include:
(1) Adding silicone oil into a container, stirring uniformly, adding resin, vinyl triethoxysilane and a catalyst, heating to 40-60 ℃, and stirring for 30-35min to obtain a release liquid;
(2) And coating release liquid on the surface of the substrate, and baking and curing to obtain the release film for the heat-conducting silica gel sheet.
The heat-conducting silica gel sheet for the solar inverter and the preparation method thereof have the beneficial effects that:
the heat on the inverter is guided by the heat-conducting silica gel substrate, the heat on the heat-conducting silica gel substrate is guided into the heat-radiating plate from the heat-conducting column, the heat on the heat-radiating plate is absorbed by the radiator arranged on the heat-radiating plate after being dispersed by the dispersing film, the heat on the inverter can be effectively guided out, the inverter is prevented from being damaged due to high temperature, and the heat-conducting speed of the heat-conducting silica gel sheet is high.
Drawings
Fig. 1 is a schematic structural diagram of a thermally conductive silicon sheet for a solar inverter and a method for manufacturing the same according to the present invention;
fig. 2 is a schematic front view of a heat-conducting silicon sheet for a solar inverter and a method for manufacturing the same according to the present invention;
fig. 3 is a schematic side view of a thermally conductive silicon sheet for a solar inverter and a method for manufacturing the same according to the present invention;
fig. 4 is a schematic diagram of a connection structure between a heat-conducting silica gel substrate and a bump in a heat-conducting silica gel sheet for a solar inverter and a preparation method thereof according to the present invention;
fig. 5 is a schematic diagram of a connection structure between a heat conducting post and a heat dissipating plate in a heat conducting silicon sheet for a solar inverter and a method for manufacturing the same according to the present invention.
In the figure: the heat conduction silica gel base plate 1, fixed frame 2, recess 3, skid resistant course 4, protruding 5, heat conduction post 6, heating panel 7, dispersion membrane 8, mounting hole 9, link 10, spheroid 11.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
Referring to fig. 1-5, a heat conduction silica gel piece for solar inverter, including heat conduction silica gel base plate 1, the outside of heat conduction silica gel base plate 1 is connected with the mount, the mount includes fixed frame 2, fixed frame 2 connects heat conduction silica gel base plate 1, recess 3 has been seted up to one side that heat conduction silica gel base plate 1 was kept away from to fixed frame 2, one side that heat conduction silica gel base plate 1 kept away from protruding 5 is connected with skid resistant course 4, all be connected with a plurality of heat conduction post 6 on every arch 5, one side that protruding 5 was kept away from to every heat conduction post 6 all is connected with heating panel 7, mounting hole 9 has all been seted up to the both sides of heating panel 7, one side that heat panel 7 kept away from heat conduction post 6 is connected with dispersion membrane 8, dispersion membrane 8 is from the type membrane, all be connected with link 10 between protruding 5 on the heat conduction silica gel base plate 1, all be connected with a plurality of spheroids 11 on every link 10, one side of each spheroid 11 all is connected with heating panel 7, the heat on the inverter is guided by silica gel base plate 1, heat on the heat conduction silica gel base plate 1 leads in from post 6 heating panel, all be connected with the heating panel after the heat dissipation membrane 8 is connected with the heat dissipation plate 11 on the heat conduction silica gel base plate 1, heat dissipation plate is fast heat dissipation plate is broken, heat dissipation membrane is connected with the heat dissipation plate is high-efficient heat dissipation silicon, the heat dissipation plate is broken simultaneously on the heat dissipation silicon is avoided on the heat conduction inverter, and the heat dissipation plate is connected.
The invention also provides a preparation method of the heat-conducting silica gel sheet for the solar inverter, which comprises the following steps:
s1: introducing the mixture of the silicone oil, the coupling agent and the platinum catalyst into a stirrer for stirring at the stirring speed of 900r/min for 30min at the stirring temperature of 70 ℃, and then adding the mixture of the cross-linking agent, the flame retardant, the weight reducing agent and the reinforcing agent for stirring at the stirring temperature of 35 ℃ for 30min;
s2: placing the stirred solution into a cleaned mold for sealing, controlling the temperature to be 25 ℃, and cooling to obtain a heat-conducting silica gel substrate containing a solvent;
s3: drying the heat-conducting silica gel substrate containing the solvent to obtain a heat-conducting silica gel substrate;
s4: mounting the heat conduction column and the heat dissipation plate on the protrusion on the heat conduction silicon substrate;
s5: and bonding a release film on the heat dissipation plate to obtain the heat conduction silica gel sheet.
The preparation method of the release film comprises the following steps:
(1) Adding silicone oil into a container, uniformly stirring, adding resin, vinyl triethoxysilane and a catalyst, heating to 40 ℃, and stirring for 30min to obtain a release liquid;
(2) And coating release liquid on the surface of the substrate, and baking and curing to obtain the release film for the heat-conducting silica gel sheet.
Example 2
Referring to fig. 1 to 5, as another preferred embodiment of the present invention, the present invention is different from embodiment 1 in that the present invention also provides a method for preparing a thermally conductive silicone sheet for a solar inverter, comprising the steps of:
s1: introducing the mixture of the silicone oil, the coupling agent and the platinum catalyst into a stirrer for stirring at the stirring speed of 1000r/min for 33min and the stirring temperature of 75 ℃, and then adding the mixture of the cross-linking agent, the flame retardant, the weight reducing agent and the reinforcing agent for stirring at the stirring temperature of 36 ℃ for 38min;
s2: placing the stirred solution into a cleaned mold for sealing, controlling the temperature to be 26 ℃, and cooling to obtain a heat-conducting silica gel substrate containing a solvent;
s3: drying the heat-conducting silica gel substrate containing the solvent to obtain a heat-conducting silica gel substrate;
s4: mounting the heat conduction column and the heat dissipation plate on the protrusion on the heat conduction silicon substrate;
s5: and bonding a release film on the heat dissipation plate to obtain the heat conduction silica gel sheet.
The preparation method of the release film comprises the following steps:
(1) Adding silicone oil into a container, uniformly stirring, adding resin, vinyl triethoxysilane and a catalyst, heating to 45 ℃, and stirring for 31min to obtain a release liquid;
(2) And coating release liquid on the surface of the substrate, and baking and curing to obtain the release film for the heat-conducting silica gel sheet.
Example 3
Referring to fig. 1 to 5, as another preferred embodiment of the present invention, the present invention is different from embodiment 1 in that the present invention also provides a method for preparing a thermally conductive silicone sheet for a solar inverter, comprising the steps of:
s1: introducing the mixture of the silicone oil, the coupling agent and the platinum catalyst into a stirrer for stirring at the stirring speed of 1200r/min for 36min and the stirring temperature of 80 ℃, and then adding the mixture of the cross-linking agent, the flame retardant, the weight reducing agent and the reinforcing agent for stirring at the stirring temperature of 37 ℃ for 45min;
s2: placing the stirred solution into a cleaned mold for sealing, controlling the temperature to be 27 ℃, and cooling to obtain a heat-conducting silica gel substrate containing a solvent;
s3: drying the heat-conducting silica gel substrate containing the solvent to obtain a heat-conducting silica gel substrate;
s4: mounting the heat conduction column and the heat dissipation plate on the protrusion on the heat conduction silicon substrate;
s5: and bonding a release film on the heat dissipation plate to obtain the heat conduction silica gel sheet.
The preparation method of the release film comprises the following steps:
(1) Adding silicone oil into a container, uniformly stirring, adding resin, vinyl triethoxysilane and a catalyst, heating to 50 ℃, and stirring for 32min to obtain a release liquid;
(2) And coating release liquid on the surface of the substrate, and baking and curing to obtain the release film for the heat-conducting silica gel sheet.
Example 4
Referring to fig. 1 to 5, as another preferred embodiment of the present invention, the present invention is different from embodiment 1 in that the present invention also provides a method for preparing a thermally conductive silicone sheet for a solar inverter, comprising the steps of:
s1: introducing the mixture of the silicone oil, the coupling agent and the platinum catalyst into a stirrer for stirring at the stirring speed of 1300r/min for 38min at the stirring temperature of 85 ℃, and then adding the mixture of the cross-linking agent, the flame retardant, the weight reducing agent and the reinforcing agent for stirring at the stirring temperature of 38 ℃ for 48min;
s2: placing the stirred solution into a cleaned mold for sealing, controlling the temperature to be 28 ℃, and cooling to obtain a heat-conducting silica gel substrate containing a solvent;
s3: drying the heat-conducting silica gel substrate containing the solvent to obtain a heat-conducting silica gel substrate;
s4: mounting the heat conduction column and the heat dissipation plate on the protrusion on the heat conduction silicon substrate;
s5: and bonding a release film on the heat dissipation plate to obtain the heat conduction silica gel sheet.
The preparation method of the release film comprises the following steps:
(1) Adding silicone oil into a container, uniformly stirring, adding resin, vinyl triethoxysilane and a catalyst, heating to 55 ℃, and stirring for 34min to obtain a release liquid;
(2) And coating release liquid on the surface of the substrate, and baking and curing to obtain the release film for the heat-conducting silica gel sheet.
Example 5
Referring to fig. 1 to 5, as another preferred embodiment of the present invention, the present invention is different from embodiment 1 in that the present invention also provides a method for preparing a thermally conductive silicone sheet for a solar inverter, comprising the steps of:
s1: introducing the mixture of the silicone oil, the coupling agent and the platinum catalyst into a stirrer for stirring at a stirring speed of 1500r/min for 40min and at a stirring temperature of 90 ℃, and then adding the mixture of the cross-linking agent, the flame retardant, the weight reducing agent and the reinforcing agent for stirring at a stirring temperature of 40 ℃ for 60min;
s2: placing the stirred solution into a cleaned mold for sealing, controlling the temperature to be 30 ℃, and cooling to obtain a heat-conducting silica gel substrate containing a solvent;
s3: drying the heat-conducting silica gel substrate containing the solvent to obtain a heat-conducting silica gel substrate;
s4: mounting the heat conduction column and the heat dissipation plate on the protrusion on the heat conduction silicon substrate;
s5: and bonding a release film on the heat dissipation plate to obtain the heat conduction silica gel sheet.
The preparation method of the release film comprises the following steps:
(1) Adding silicone oil into a container, uniformly stirring, adding resin, vinyl triethoxysilane and a catalyst, heating to 60 ℃, and stirring for 35min to obtain a release liquid;
(2) And coating release liquid on the surface of the substrate, and baking and curing to obtain the release film for the heat-conducting silica gel sheet.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. The utility model provides a heat conduction silica gel piece for solar inverter, includes heat conduction silica gel base plate (1), its characterized in that, the outside of heat conduction silica gel base plate (1) is connected with the mount, one side of heat conduction silica gel base plate (1) is connected with a plurality of arch (5), every all be connected with a plurality of heat conduction post (6) on protruding (5), every heat conduction post (6) keep away from one side of protruding (5) all is connected with heating panel (7), mounting hole (9) have all been seted up to the both sides of heating panel (7), one side that heating panel (7) kept away from heat conduction post (6) is connected with dispersion membrane (8);
the fixing frame comprises a fixing frame (2), the fixing frame (2) is connected with the heat-conducting silica gel substrate (1), and a groove (3) is formed in one side, far away from the heat-conducting silica gel substrate (1), of the fixing frame (2);
one side of the heat conduction silica gel substrate (1) far away from the protrusion (5) is connected with an anti-slip layer (4);
connecting frames (10) are connected between the bulges (5) on the heat-conducting silica gel substrate (1), a plurality of spheres (11) are connected to each connecting frame (10), and one side of each sphere (11) is connected with the heat dissipation plate (7);
the preparation of the heat-conducting silica gel sheet comprises the following steps:
s1: introducing the silica gel raw material into a stirrer for stirring at 900-1500r/min for 30-40min at 70-90deg.C, adding regulator for stirring at 35-40deg.C for 30-60min;
s2: placing the stirred solution into a cleaned mold for sealing, controlling the temperature to be 25-30 ℃, and cooling to obtain a heat-conducting silica gel substrate containing a solvent;
s3: drying the heat-conducting silica gel substrate containing the solvent to obtain a heat-conducting silica gel substrate;
s4: mounting the heat conduction column and the heat dissipation plate on the protrusion on the heat conduction silicon substrate;
s5: bonding a release film on the heat dissipation plate to obtain a heat conduction silica gel sheet;
the preparation method of the release film comprises the following steps:
(1) Adding silicone oil into a container, stirring uniformly, adding resin, vinyl triethoxysilane and a catalyst, heating to 40-60 ℃, and stirring for 30-35min to obtain a release liquid;
(2) And coating release liquid on the surface of the substrate, and baking and curing to obtain the release film for the heat-conducting silica gel sheet.
2. A thermally conductive silicone sheet for a solar inverter according to claim 1, characterized in that the dispersion film (8) is a release film.
3. The thermally conductive silicone sheet for a solar inverter of claim 1, wherein the silicone raw material is a mixture of silicone oil, a coupling agent, and a platinum catalyst.
4. The thermally conductive silicone sheet for a solar inverter of claim 1, wherein the modifier is a mixture of a cross-linking agent, a flame retardant, a weight loss agent, and a reinforcing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110229824.6A CN113015413B (en) | 2021-03-02 | 2021-03-02 | Heat-conducting silica gel sheet for solar inverter and preparation method thereof |
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| CN202110229824.6A CN113015413B (en) | 2021-03-02 | 2021-03-02 | Heat-conducting silica gel sheet for solar inverter and preparation method thereof |
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| CN113015413B true CN113015413B (en) | 2023-12-15 |
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2021
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| CN211546404U (en) * | 2019-12-20 | 2020-09-22 | 深圳市昌元兴科技有限公司 | Heat conduction silica gel sheet |
| CN111218115A (en) * | 2020-02-28 | 2020-06-02 | 中国电子科技集团公司第五十八研究所 | Preparation method of high-thermal-conductivity silicone sheet and high-thermal-conductivity silicone sheet |
| CN112280304A (en) * | 2020-10-20 | 2021-01-29 | 深圳市诺丰电子科技有限公司 | Efficient heat-conducting silica gel sheet and processing technology |
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Effective date of registration: 20240122 Address after: 230000, Second Floor, Unit 7-02, Shushan International Enterprise Port, Liandong U Valley, southeast corner of the intersection of Bailianyan Road and Zhenxing Road, Shushan District, Hefei City, Anhui Province, China Patentee after: Anhui Zhongji Investment New Energy Co.,Ltd. Country or region after: China Address before: 230031 building 7-02, Shushan international enterprise port, Liandong u Valley, southeast corner of intersection of bailianyan road and Zhenxing Road, Shushan District, Hefei City, Anhui Province Patentee before: Hefei Bunuo Solar Energy Technology Co.,Ltd. Country or region before: China |