CN216337406U - Conductive heat dissipation graphite flake - Google Patents
Conductive heat dissipation graphite flake Download PDFInfo
- Publication number
- CN216337406U CN216337406U CN202123072530.1U CN202123072530U CN216337406U CN 216337406 U CN216337406 U CN 216337406U CN 202123072530 U CN202123072530 U CN 202123072530U CN 216337406 U CN216337406 U CN 216337406U
- Authority
- CN
- China
- Prior art keywords
- film layer
- graphene film
- graphite
- heat dissipation
- layer
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Secondary Cells (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The application relates to the technical field of graphite flakes, in particular to a conductive heat dissipation graphite flake. The graphite flake comprises a protection film layer and a cooling fin, wherein the cooling fin sequentially comprises the protection film layer, a nano carbon copper layer, a first graphene film layer, an aluminum film layer and a second graphene film layer from the upper surface to the lower surface, the second graphene film layer is adhered to an external battery, the cooling fin further comprises a third graphene film layer installed at intervals, and the third graphene film layer vertically penetrates through the nano carbon copper layer, the first graphene film layer, the aluminum film layer and the second graphene film layer. According to the graphite sheet heat dissipation device, the nano carbon copper layer, the first graphene film layer, the aluminum film layer and the second graphene film layer are vertically penetrated through the plurality of layers of intervals, so that the heat dissipation can be transversely dissipated and longitudinally dissipated in the heat dissipation process of the graphite sheet, the heat dissipation efficiency of the graphite sheet is improved, the service life of the battery is further prolonged, and the heat dissipation performance of the graphite sheet is better.
Description
Technical Field
The application relates to the technical field of graphite flakes, in particular to a conductive heat dissipation graphite flake.
Background
At present, electronic products are more and more diverse, and when electronic products are selected, the functions of the electronic products can be compared, and the appearance of the electronic products can be considered, so that the electronic products with the light and thin appearance are more popular with people and are the development trend of the electronic products. The light and thin appearance means that the space inside an electronic product is narrower and narrower, the size of a battery of an energy storage device in the electronic product is smaller and smaller, the smaller the size is, the lower the heat dissipation efficiency is, the heat dissipation capacity of the electronic product is limited, and therefore the use of the electronic product is influenced, and therefore the heat dissipation problem of the battery is always solved in the field of the existing batteries.
Graphene sheets are generally selected as heat dissipation materials in the market, and the favorable characteristics of graphene sheets, such as heat conduction, lightness and thinness, are utilized. Attaching the graphite alkene piece in the market to the battery, the heat that makes the battery produce can evenly disperse, reach radiating effect, can effectual protection electronic product's life from this, but because graphite alkene piece is monoblock, when leading to heat transfer to reach certain equilibrium, heat transfer speed just is unchangeable, be unfavorable for quick heat dissipation, graphite alkene piece folding endurance is poor simultaneously, break easily in the use, thereby shorten the live time of battery, in addition, battery surface is provided with the winding displacement hole that is used for being connected with external equipment power source hole and is used for with external wire connection in the electronic product, can not influence its use in the radiating, but a monoblock graphite alkene piece can influence its use, so the inventor thinks needs the improvement.
SUMMERY OF THE UTILITY MODEL
In order to improve the technical problem, the present application provides a conductive heat dissipation graphite sheet.
The application provides a conductive heat dissipation graphite flake adopts following technical scheme:
the utility model provides a conductive heat dissipation graphite flake, includes protection rete and fin, the fin includes protection rete, nanometer charcoal copper layer, first graphite alkene rete, aluminium rete and second graphite alkene rete and dustproof rete by upper surface to lower surface in proper order, second graphite alkene rete bonds with outside battery, the fin still includes the third graphite alkene rete of interval installation, third graphite alkene rete run through perpendicularly in nanometer charcoal copper layer first graphite alkene rete the aluminium rete with second graphite alkene rete.
By adopting the technical scheme, the nano carbon copper layer, the first graphene film layer, the aluminum film layer and the second graphene film layer enable heat generated by the battery to be transmitted transversely and rapidly, the third graphene film layer vertically penetrates through the nano carbon copper layer, the first graphene film layer, the aluminum film layer and the second graphene film layer, the longitudinal heat dissipation rate of the graphite sheet is improved, the heat dissipation efficiency of the graphite sheet is improved, the graphite sheet can perform transverse heat dissipation and longitudinal heat dissipation in the heat dissipation process, the heat dissipation efficiency of the graphite sheet is improved, the high-temperature effect of the battery can be effectively reduced, the service life of the battery is further prolonged, and the heat dissipation performance of the graphite sheet is better. At the same time
The first graphene film layer and the second graphene film layer are matched with the nano carbon copper layer, the aluminum film layer and the protective layer for use, so that the first graphene film layer and the second graphene film layer are not easy to break, the service lives of the first graphene film layer and the second graphene film layer can be prolonged, and the service life of an electronic product is further prolonged.
Optionally, the thickness of the graphite sheet is 3-6 mm.
By adopting the technical scheme, the graphite flake has good heat dissipation performance and excellent folding strength, if the thickness of the graphite flake is less than 3mm, the strength of the graphite flake is insufficient, the heat dissipation efficiency is low, and the graphite flake is not easy to use for a long time; if the thickness of the graphite flake is larger than 6mm, the manufacturing cost of the graphite flake is increased, which is not beneficial to the production and manufacturing of enterprises.
Optionally, the thicknesses of the first graphene film layer and the second graphene film layer are both 0.5-1 mm.
By adopting the technical scheme, the graphite sheet has better heat dissipation performance when being used together with the nano carbon copper and aluminum film layers, is economical and practical, and has reduced heat dissipation effect if the thicknesses of the first graphene layer and the second graphene layer are less than 0.5 mm; the price ratio of graphite alkene is more expensive, if the thickness of first graphite alkene layer and second graphite alkene layer is greater than 1mm, then the cost is expensive, increases the cost in business, is difficult to apply to in the actual production.
Optionally, the thickness ratio of the protective film layer, the nano-copper layer, the first graphene film layer, the aluminum film layer and the second graphene film layer is (1-2): 1.5-2): 1-2): 2-3): 1-2.
By adopting the technical scheme, the graphite sheet has better mechanics and heat dissipation performance.
Optionally, a single-side adhesive layer is arranged on one side, far away from the aluminum film layer, of the second graphene film layer, and the thickness of the single-side adhesive layer is 0.1-0.3 mm.
By adopting the technical scheme, the graphite flake is convenient to be connected with the battery, the graphite flake can be stably bonded with the battery by the thickness of the single-sided adhesive layer being 0.1-0.3 mm, and the heat conduction rate of the graphite flake is not influenced, if the thickness of the single-sided adhesive layer is less than 0.1mm, the bonding degree of the graphite flake and the battery is small, and the graphite flake is easy to fall off; if the thickness of the single-side glue layer is larger than 0.3mm, the battery is influenced to rapidly transfer heat to the graphite flake, so that the battery can not transfer heat in time, and the use of the battery is influenced.
Optionally, the graphite sheet includes a first region and a second region connected to the first region, a first yielding port for yielding a line arranging hole of the battery cover, a first notch for air circulation, and a first positioning hole for positioning the graphite sheet are disposed at an interval on one side of the first region away from the second region, and the first yielding port, the first notch, and the first positioning hole all penetrate through the graphite sheet.
Through adopting above-mentioned technical scheme, the air flow is to first breach, form air cycle, can take away the heat of graphite flake fast, improve the radiating efficiency of graphite flake, simultaneously because the graphite flake is not a monoblock regular shape, can make the graphite flake peripheral production difference in temperature, make the heat at middle part to edge diffusion, accelerate thermal transmission, the battery is provided with the winding displacement hole that is used for with external connection, first the mouth of stepping down is used for dodging the winding displacement hole, be convenient for the battery is connected with external equipment, first locating hole is used for the graphite flake location.
Optionally, one side of the second area, which is far away from the first area, is provided with a second notch and a third notch at intervals, the second notch is used for avoiding a power supply hole, the second notch is used for air circulation, and the second notch, the second notch and the third notch are arranged at intervals and penetrate through the graphite sheet.
Through adopting above-mentioned technical scheme, air flow to second breach and third hole of stepping down, increase the area that the air flows, be favorable to forming air cycle, cooperate first breach to use simultaneously, can take away the heat of graphite flake fast, improve the radiating efficiency of graphite flake, simultaneously because the graphite flake is not a monoblock regular shape, the heat radiating area increases, make the heat at middle part to marginal diffusion, accelerate thermal transmission, the battery is provided with the power hole, the second hole of stepping down is used for dodging the power hole, be convenient for be connected of power hole and outside electric wire.
Optionally, one side of the single-sided adhesive layer, which is far away from the second graphene film layer, is connected with a dustproof film layer.
By adopting the technical scheme, the single-side adhesive layer is isolated from pollutants such as air, dust, water and the like, the single-side adhesive layer keeps good viscosity, the dustproof film has good waterproofness, and the contact of the single-side adhesive layer with air and water can be effectively reduced.
In summary, the present application at least includes the following beneficial technical effects:
1. this application is through setting gradually the protection rete, the nanometer charcoal copper layer, first graphite alkene rete, aluminium rete and second graphite alkene rete, and run through nanometer charcoal copper layer, first graphite alkene rete, aluminium rete and second graphite alkene rete perpendicularly with a plurality of layers of intervals, make can transversely dispel the heat and vertically dispel the heat in the graphite flake radiating process, be favorable to improving the radiating efficiency of graphite flake, the high temperature effect that can effectual reduction battery, can prolong the life of graphite flake, further prolong the life of battery, make the heat dispersion of graphite flake better.
2. This application is through the first breach that sets up in the first region and second breach and the third breach that sets up in the second region, increases the heat radiating area of graphite flake, also increases the flow space of air simultaneously, further accelerates the radiating rate of graphite flake to improve the radiating efficiency of graphite flake.
Drawings
Fig. 1 is a schematic view of a layered structure of a conductive heat dissipation graphite sheet according to the present embodiment.
Fig. 2 is a schematic surface view of a conductive heat dissipating graphite sheet according to the present embodiment.
Description of reference numerals: 1. a protective film layer; 2. a nano carbon copper layer; 3. a first graphene film layer; 4. an aluminum film layer; 5. a second graphene film layer; 6. a third graphene film layer; 7. a first region; 71. a first escape port; 72. a first notch; 73. a first positioning hole; 8. a second region; 81. a second escape port; 82. a second notch; 83. a third notch; 84. a first air vent; a second air hole; 9. a single-side adhesive layer; 10. and (5) a dustproof film.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
In fig. 2 of the present application, a first area and a second area are divided by a dotted line.
The embodiment of the application discloses electrically conductive heat dissipation graphite piece. Referring to fig. 1, the graphite sheet is sequentially connected with a protective film layer 1, a nano-copper layer 2, a first graphene film layer 3, an aluminum film layer 4, a second graphene film layer 5 and a dustproof film 10 from the outer surface to the inner surface, the graphite sheet further comprises a plurality of third graphene film layers 6 installed at intervals, the third graphene film layers 6 are perpendicular to the protective film layer 1, the nano-copper layer 2, the first graphene film layer 3, the aluminum film layer 4 and the second graphene film layer 5 and penetrate through the nano-copper layer 2, the first graphene film layer 3, the aluminum film layer 4 and the second graphene film layer 5, so that the transverse heat dissipation efficiency and the longitudinal heat dissipation efficiency of the graphite sheet can be improved, preferably, the thickness of the graphite sheet is 3mm, 4mm, 5mm or 6mm, the total thickness of the graphite sheet is 5mm in the embodiment, the protective film layer 1, the nano-copper layer 2, the first graphene film layer 3, the aluminum film layer 4, the second graphene film layer 5 and the second protective film layer 1 are integrally formed by rolling process, the thickness of the first graphene film layer 3 is 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1mm, the thickness of the second graphene film layer 5 is consistent with that of the first graphene film layer 3, in the embodiment, the thicknesses of the first graphene film layer 3 and the second graphene film layer 5 are both 0.5mm, the thickness of the third graphene film layer 6 is 1mm, the thickness of the protective film layer 1 is 0.5mm, the thickness of the nano carbon copper layer is 2.5mm, the thickness of the aluminum film layer 4 is 1mm, the thickness ratio of the nano carbon copper layer 2, the first graphene film layer 3, the aluminum film layer 4 and the second graphene film layer 5 is 1:1:2:1, so that the heat dissipation effect of the graphite flake is better, the side of the second graphene film layer 5, which is far away from the aluminum film layer 4, is bonded with the single-sided adhesive layer 9, the side of the single-sided adhesive layer 9, which is far away from the second graphene film layer 5, is bonded with the dustproof film 10, and the preferable thickness of the single-sided adhesive layer 9 is 0.1mm, 0.2mm or 1.3 mm, the thickness of the single-sided adhesive layer 9 in this embodiment is 0.2 mm.
Referring to fig. 2, the graphite sheet includes a first area 7 and a second area 8, a first relief opening 71, a first notch 72 and a first positioning hole 73 are sequentially spaced apart from a side portion of the first area 7 away from the second area 8, the first relief opening 71 is matched with an edge of a cable hole of a battery to avoid the cable hole of the battery, so that the graphite sheet is smoothly attached to a surface of the battery cover, a cross section of the first notch 72 may be in an inverted arch shape, a rectangle, a semicircle, or other shapes within a protection range of the present application, and preferably adopts an arch shape, which can further increase a space for air circulation, thereby improving an air circulation effect, in other embodiments, the first area 7 may be provided with a plurality of first notches 72 at intervals, the first positioning hole 73 is used for positioning the graphite sheet, and a second relief hole 81, a second relief hole, a third relief hole, a fourth hole, The second notch 82 and the third notch 83, the second abdicating hole 81 is matched with the power supply hole of the battery, the cross sections of the second notch 82 and the third notch 83 can be arch-shaped, and other shapes such as rectangle and semicircle are within the protection range of the present application, and the preferred arch-shaped shape is adopted, so that the air circulation space can be further increased, the air circulation effect is improved, in other embodiments, the second area 8 can be provided with a plurality of second notches 82 and third notches 83 at intervals, the second area 8 is provided with the first air hole 84 and the second air hole 85, the air can enter the first air hole 84 and the second air hole 85, the contact area between the air and the graphite sheet is increased, and the heat dissipation efficiency is accelerated.
The implementation principle of the conductive heat dissipation graphite sheet in the embodiment of the application is as follows: firstly, arranging and placing a nano carbon copper layer 2, a first graphene film layer 3, an aluminum film layer 4 and a second graphene film layer 5 in sequence, pressing the nano carbon copper layer 2, the first graphene film layer 3, the aluminum film layer 4 and the second graphene film layer 5 by using a rolling process to form a whole, vertically cutting the nano carbon copper layer 2, the first graphene film layer 3, the aluminum film layer 4 and the second graphene film layer 5 to obtain a plurality of cuts, inserting a third graphene film layer 6 into the cuts, sequentially pressing the cuts to stably connect the third graphene film layer 6 with the nano carbon copper layer 2, the first graphene film layer 3, the aluminum film layer 4 and the second graphene film layer 5, adhering a single-sided adhesive layer 9 to one side of the second graphene film layer 5 far away from the aluminum film layer 4, adhering a dustproof film 10 with the single-sided adhesive layer 9, cutting the first relief hole 71, the first notch 72, the first positioning hole 73, the second relief hole 81, the second notch 82, the third notch 83, the first vent hole 84 and the second vent hole 85, and simultaneously, cutting the protective film, cutting a first abdicating hole 71, a first notch 72, a first positioning hole 73, a second abdicating hole 81, a second notch 82, a third notch 83, a first air hole 84 and a second air hole 85, and correspondingly adhering the protective film layer 1 to the surface of the nano-carbon copper layer 2.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a conductive heat dissipation graphite flake, includes protection rete (1) and fin, its characterized in that: the radiating fin comprises a protective film layer (1), a nano carbon copper layer (2), a first graphene film layer (3), an aluminum film layer (4) and a second graphene film layer (5) from the upper surface to the lower surface in sequence, the second graphene film layer (5) is adhered to an external battery, the radiating fin further comprises a third graphene film layer (6) installed at intervals, and the third graphene film layer (6) vertically penetrates through the nano carbon copper layer (2), the first graphene film layer (3), the aluminum film layer (4) and the second graphene film layer (5).
2. A graphite sheet for electrical conduction and heat dissipation according to claim 1, wherein: the thickness of the graphite sheet is 3-6 mm.
3. A graphite sheet for electrical conduction and heat dissipation according to claim 1, wherein: the thickness of the first graphene film layer (3) and the thickness of the second graphene film layer (5) are both 0.5-1 mm.
4. A graphite sheet for electrical conduction and heat dissipation according to claim 3, wherein: the thickness ratio of the protective film layer (1), the nano copper layer (2), the first graphene film layer (3), the aluminum film layer (4) and the second graphene film layer (5) is (1-2): 1.5-2): 1-2): 2-3: (1-2).
5. An electrically conductive graphite heat sink sheet according to claim 4, wherein: one side, far away from the aluminum film layer (4), of the second graphene film layer (5) is provided with a single-side adhesive layer (9), and the thickness of the single-side adhesive layer (9) is 0.1-0.3 mm.
6. An electrically conductive graphite heat sink sheet according to claim 5, wherein: the graphite sheet comprises a first area (7) and a second area (8) connected with the first area (7), wherein a first yielding port (71) used for avoiding a line arranging hole of a battery cover, a first notch (72) used for air circulation and a first positioning hole (73) used for positioning are arranged on one side, far away from the second area (8), of the first area (7) at intervals, and the first yielding port (71), the first notch (72) and the first positioning hole (73) penetrate through the graphite sheet.
7. An electrically conductive graphite heat sink sheet according to claim 6, wherein: keep away from in second region (8) one side interval of first region (7) is provided with and is used for dodging the power supply hole second and lets a mouthful, be used for air current's second breach (82) and be used for the third breach (83) of winding displacement, the second lets a mouthful second breach (82) with the second hole of stepping down all runs through the graphite flake.
8. An electrically conductive graphite heat sink sheet according to claim 5, wherein: and one surface of the single-sided adhesive layer (9) far away from the second graphene film layer (5) is connected with a dustproof film (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123072530.1U CN216337406U (en) | 2021-12-07 | 2021-12-07 | Conductive heat dissipation graphite flake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123072530.1U CN216337406U (en) | 2021-12-07 | 2021-12-07 | Conductive heat dissipation graphite flake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216337406U true CN216337406U (en) | 2022-04-19 |
Family
ID=81162800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123072530.1U Active CN216337406U (en) | 2021-12-07 | 2021-12-07 | Conductive heat dissipation graphite flake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216337406U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115441098A (en) * | 2022-10-10 | 2022-12-06 | 东莞市鸿亿导热材料有限公司 | Graphite heat conduction assembly and preparation method thereof |
-
2021
- 2021-12-07 CN CN202123072530.1U patent/CN216337406U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115441098A (en) * | 2022-10-10 | 2022-12-06 | 东莞市鸿亿导热材料有限公司 | Graphite heat conduction assembly and preparation method thereof |
| CN115441098B (en) * | 2022-10-10 | 2023-10-20 | 东莞市鸿亿导热材料有限公司 | Graphite heat conduction assembly and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216337406U (en) | Conductive heat dissipation graphite flake | |
| CN207038665U (en) | Battery bag cooling system | |
| CN212851202U (en) | Novel LED drive circuit board | |
| CN201487854U (en) | High thermal conductivity LED lamp | |
| CN217589100U (en) | Battery module | |
| CN216015496U (en) | Direct-cooling heat dissipation lithium battery module structure | |
| CN210576020U (en) | Green's thermoelectric separation base plate | |
| CN212907763U (en) | Heat radiation structure of PERC battery light attenuation resistance equipment | |
| CN202165937U (en) | Radiation-improving LED (light-emitting diode) advertising lamp | |
| CN202165935U (en) | Improved radiating LED (light-emitting diode) advertising lamp | |
| CN201875490U (en) | Large-power LED (light-emitting diode) lamp with excellent radiating effect | |
| CN215266557U (en) | Portable small-size lithium cell | |
| CN212005245U (en) | Thermoelectric isolation type LED module | |
| CN220068069U (en) | Energy-saving LED display unit board | |
| CN216113495U (en) | High-brightness LED lamp aluminum substrate | |
| CN218448105U (en) | Power lithium battery with strong heat dissipation performance | |
| CN217522138U (en) | Lithium battery for 5G mobile ward round vehicle | |
| CN202633382U (en) | Light-emitting diode (LED) lamp assembly and silicon substrate LED lamp thereof | |
| CN213977526U (en) | Heat conducting pad for new energy battery pack | |
| CN216529052U (en) | Battery cover heat dissipation film | |
| CN215578610U (en) | High-temperature-resistant planar light-emitting tube | |
| CN218005198U (en) | Optimized integrated type tab structure | |
| CN215799284U (en) | Graphite copper foil composite radiating fin | |
| CN218033813U (en) | Semiconductor refrigerating device and portable refrigerating equipment | |
| CN210419832U (en) | Graphene heat conduction and dissipation film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |