Plastic radiator based on polymer graphene
By using plastic radiators made of polymer graphene materials, the problems of easy oxidation and small wind-receiving area of traditional radiators are solved, higher heat dissipation efficiency and service life are achieved, and radio frequency interference is reduced.
Patent Information
- Application Number
- CN202311323919.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-13
- Publication Date
- 2025-04-15
AI Technical Summary
The existing heat sinks are easily oxidized due to the material, which reduces the heat dissipation efficiency and service life. At the same time, they are relatively large in weight, which easily squeezes electronic components. The traditional heat sinks have a small wind-receiving area, making it impossible to achieve efficient heat dissipation.
The plastic radiator made of polymer graphene material improves heat dissipation efficiency through the thermal conductivity and electrical conductivity of graphene, and increases the wind receiving area and heat exchange efficiency through the air guide plate structure.
It improves the service life and heat dissipation efficiency of the radiator, reduces radio frequency interference, and achieves efficient heat dissipation treatment by increasing the wind-receiving area and heat exchange efficiency.
Smart Images
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Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of plastic radiators, in particular to a plastic radiator based on polymer graphene. Background Art
[0002] With the vigorous development of high technology, electronic products are becoming more and more intelligent and complex, the size of electronic components is becoming smaller and smaller, and the density per unit area is getting higher and higher. The direct impact of this situation is that the heat generated by electronic products during operation is getting bigger and bigger, and then they are mostly treated with heat sinks. Heat sinks are a device for dissipating heat from heat-prone electronic components in electrical appliances. They are mostly made of aluminum alloy, brass or bronze in the shape of plates, sheets, multiple sheets, etc. Generally, a layer of thermal conductive silicone grease should be applied on the contact surface between the electronic components and the heat sink during use, so that the heat generated by the components can be more effectively transferred to the heat sink, and then dissipated to the surrounding air through the heat sink.
[0003] However, the existing heat sinks are mostly made of alloy materials, which are prone to oxidation during use, thereby seriously reducing their heat dissipation effect and service life. At the same time, the alloy is of high quality, and thus its overall weight is also high, which can easily cause squeezing of electrical components, making it impossible for some electronic components with low bearing capacity to withstand the heavy alloy heat sink. In addition, the wind-receiving area of the traditional heat sink is consistent with the size of the sheet, and the wind volume is small, and efficient heat dissipation of the heat sink cannot be achieved. Therefore, it is urgent to design a plastic heat sink based on polymer graphene to solve the above problems. Summary of the invention
[0004] The object of the present invention is to provide a plastic heat sink based on polymer graphene to solve the problems of poor heat dissipation efficiency and high usage restrictions of traditional heat sinks mentioned in the above background technology.
[0005] To achieve the above object, the present invention provides the following technical solution: a plastic radiator based on polymer graphene, comprising:
[0006] A base plate, wherein the upper surface of the base plate is fixedly connected with heat dissipation fins, a first air guide plate is engaged with the lower part of the base plate, a second air guide plate is placed on the upper surface of the heat dissipation fins, a protective column passes through the first air guide plate and the second air guide plate, a mounting hole is opened on the base plate, and a needle column passes through the inside of the mounting hole, a spring is sleeved on the outside of the needle column, and a convex plate is fixedly connected to the side of the base plate away from the heat dissipation fins.
[0007] Preferably, the substrate, heat dissipation fins and convex plate are an integrally formed structure, and the substrate, heat dissipation fins and convex plate include the following components in parts by mass: graphene, 20-80 parts; filler, 10-40 parts; adhesive, 5-10 parts; surface treatment agent, 0.5-2 parts; dispersant, 1-3 parts.
[0008] Preferably, the graphene is first crushed, and its powder is modified with a surface treatment agent and then dried to form stably dispersed modified graphene powder; the modified graphene powder is then mechanically sheared and blended with a filler, an adhesive and a dispersant to obtain a uniformly mixed composite material, and finally plasticized and granulated by an extruder hot pelletizing method to obtain the raw materials for the substrate, the heat dissipation fins and the convex plate.
[0009] Preferably, the graphene is 40 parts; the filler is 20 parts; the adhesive is 8 parts; the surface treatment agent is 1 part; and the dispersant is 2 parts.
[0010] Preferably, the filler is at least one of array-type carbon nanotubes, entangled carbon nanotubes, micro-powder graphite, expanded graphite, flake graphite, high-purity graphite and carbon black; the adhesive is at least one of epoxy acrylic resin, polyurethane acrylic resin, polyvinylidene fluoride, ethylene-vinyl acetate copolymer, thermoplastic elastomer, polyolefin elastomer, styrene thermoplastic elastomer, styrene-butadiene rubber, polyacrylonitrile and polyurethane; the surfactant is at least one of sodium polyacrylate, silane coupling agent, organic metal ester coupling agent, octadecylamine, isocyanate, sodium dodecylbenzene sulfonate, sodium alginate, sodium carboxymethyl cellulose, sodium stearate and sodium hexadecyl sulfonate; the dispersant is at least one of polyvinyl chloride, polyethylene wax, calcium stearate, EVA wax, vinyl bisstearamide, ethylene-methyl acrylate copolymer, polyethylene oxide, polyethylene glycol and polyethylene wax.
[0011] Preferably, the edge of the first air guide plate is inclined, the edge of the second air guide plate is also inclined, the inner wall size of the first air guide plate is smaller than the outer size of the base plate, the inner wall of the first air guide plate is an L-shaped structure that is snapped onto the bottom outer wall of the base plate, positioning holes are evenly opened at the corresponding horizontal ends of the first air guide plate and the second air guide plate, and protective columns penetrate the interior of the positioning holes, and both ends of the protective columns are extruded into a step-like structure.
[0012] Preferably, the spacing between adjacent protective columns is between 5mm and 10mm, the needle column is step-shaped, and one end of the spring is on the outer wall of the substrate, and the other end abuts against the stepped outer wall of the needle column, and four needle columns and four springs are provided. The heat dissipating fins are evenly distributed on the upper surface of the substrate, and the front-to-back spacing of the heat dissipating fins is 3.35mm, and the left-to-right spacing of the heat dissipating fins is 3.2mm.
[0013] Preferably, the sum of the thicknesses of the substrate and the heat dissipation fins is 9 mm, the thickness of the convex plate is 0.5 mm, the maximum length of the substrate is 96 mm, the maximum width of the substrate is 72 mm, the second step width of the substrate is 58 mm, the minimum width of the substrate is 49 mm, and the length tolerance range of the substrate is: 0<L≤4 tolerance plus or minus 0.1 mm, 4<L≤16 tolerance plus or minus 0.2 mm, 16<L≤60 tolerance plus or minus 0.3 mm, 60<L tolerance plus or minus 0.5 mm.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. The main body of the plastic radiator of the polymer graphene is made of graphene material. Graphene is anti-corrosive, making it stronger and more corrosion-resistant, thereby increasing its service life and avoiding corrosion and deformation in the later stage of use; graphene has good thermal and electrical conductivity. Graphene has very good thermal conductivity. The thermal conductivity of pure and defect-free single-layer graphene is as high as 5300 watts per meter, which is the carbon material with the highest thermal conductivity so far. Graphene can help greatly improve the heat dissipation performance, thereby providing higher heat dissipation efficiency for electrical components and ensuring its high efficiency of heat dissipation. Graphene is one of the materials with the highest known strength. It also has good toughness and can be bent. The reduced graphene modified by hydrogen plasma also has very good strength, which improves its own use strength.
[0016] 2. The polymer graphene plastic heat sink uses graphene material cooling fins to dissipate heat from electrical components, effectively increasing the heat dissipation area, with good thermal conductivity, completing the heat exchange between the heat source and the environment; at the same time, through the lower interference effect of graphite, it can effectively reduce radio frequency interference, which plays a great role in the completion of radio frequency debugging.
[0017] 3. The high molecular graphene plastic radiator can greatly increase the wind receiving area of the radiator by setting two sets of wind guide plates, thereby guiding the wind direction, improving the wind contact with the cooling fins, improving its heat exchange efficiency, and further improving the heat dissipation effect of the radiator, achieving its efficient heat dissipation treatment. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle;
[0019] Figure 2 It is a schematic diagram of the overall structure of the second viewing angle of the present invention;
[0020] Figure 3 It is a schematic diagram of the heat dissipation fin distribution structure of the present invention;
[0021] Figure 4It is a schematic diagram of the substrate structure of the present invention;
[0022] Figure 5 This is a schematic diagram of the distribution structure of the first air guide plate of the present invention;
[0023] Figure 6 It is a partial cross-sectional structural schematic diagram of the present invention;
[0024] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of A.
[0025] In the figure: 1. base plate; 2. first air guide plate; 3. second air guide plate; 4. protective column; 5. heat dissipation fin; 6. needle column; 7. spring; 8. mounting hole; 9. convex plate. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0027] See also Figure 1-7 , an embodiment provided by the present invention:
[0028] A plastic radiator based on polymer graphene, comprising: The materials of the various components used in this application are products that can be directly purchased on the market, and their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be repeated here.
[0029] A base plate 1, the upper surface of the base plate 1 is fixedly connected with heat dissipation fins 5, the lower part of the base plate 1 is clamped with a first air guide plate 2, the upper surface of the heat dissipation fins 5 is placed with a second air guide plate 3, a protective column 4 is passed through the first air guide plate 2 and the second air guide plate 3, a mounting hole 8 is opened on the base plate 1, and a needle column 6 is passed through the inside of the mounting hole 8, and a spring 7 is sleeved on the outside of the needle column 6, and a convex plate 9 is fixedly connected to the side of the base plate 1 away from the heat dissipation fins 5. Through the setting of this structure, efficient heat dissipation can be achieved. Through the setting of the guide structure of the first air guide plate 2 and the second air guide plate 3, the contact area between the first air guide plate 2 and the second air guide plate 3 is increased. At the same time, through its inclined distribution, the wind is guided to the heat dissipation fins 5, and the wind blowing and cooling of the heat dissipation fins 5 are achieved, thereby greatly improving the contact effect between the heat dissipation fins 5 and the wind, and increasing the heat dissipation efficiency.
[0030] Furthermore, the substrate 1, the heat dissipation fins 5 and the convex plate 9 are an integrally formed structure, and the substrate 1, the heat dissipation fins 5 and the convex plate 9 include the following components in parts by mass: graphene, 20-80 parts; filler, 10-40 parts; adhesive, 5-10 parts; surface treatment agent, 0.5-2 parts; dispersant, 1-3 parts.
[0031] Further, firstly, the graphene is crushed, and the powder is modified by a surface treatment agent, and then dried to form a stably dispersed modified graphene powder; then the modified graphene powder is mechanically sheared and blended with fillers, adhesives and dispersants to obtain a uniformly mixed composite material, and finally plasticized and granulated by an extruder hot granulation method to obtain the raw materials of the substrate 1, the heat dissipation fins 5 and the convex plate 9. The mechanical blend is a blend obtained by mixing the melts of different polymers by rollers, extruders or strong mixers; the blending temperature is higher than the viscosity flow temperature of the amorphous polymer component contained in the mixture, and higher than the melting point of the crystalline polymer component contained. The high shear stress during mechanical blending can cause polymer degradation, and the large free radicals generated may react with another polymer or large free radical with a different structure to cause grafting, block or cross-linking reaction. The generated graft or block copolymer has a compatibilizing effect on the corresponding homopolymer. The physical and mechanical properties and processing properties of polymer materials can be improved by blending, and the cost can be reduced and the scope of use can be expanded. Therefore, it is one of the important ways to achieve polymer modification and produce multi-performance new materials.
[0032] The invention discloses a graphene material comprising 40 parts of graphene, 20 parts of fillers, 8 parts of adhesives, 1 part of surface treatment agents and 2 parts of dispersants. The fillers are at least one of array carbon nanotubes, entangled carbon nanotubes, micro-powder graphite, expanded graphite, flake graphite, high-purity graphite and carbon black. The adhesive is at least one of epoxy acrylic resin, polyurethane acrylic resin, polyvinylidene fluoride, ethylene-vinyl acetate copolymer, thermoplastic elastomer, polyolefin elastomer, styrene thermoplastic elastomer, styrene-butadiene rubber, polyacrylonitrile and polyurethane. The surfactant is at least one of sodium polyacrylate, silane coupling agent, organic metal ester coupling agent, octadecylamine, isocyanate, sodium dodecylbenzene sulfonate, sodium alginate, sodium carboxymethyl cellulose, sodium stearate and sodium hexadecyl sulfonate. The dispersant is at least one of polyvinyl chloride, polyethylene wax, calcium stearate, EVA wax, vinyl bisstearamide, ethylene-methyl acrylate copolymer, polyethylene oxide, polyethylene glycol and polyethylene wax.
[0033] Furthermore, the edge of the first air guide plate 2 is inclined, and the edge of the second air guide plate 3 is also inclined. The inclined distribution allows more air to enter between the first air guide plate 2 and the second air guide plate 3 during air flow, thereby increasing the contact between the heat dissipation fins 5 and the air, improving the heat exchange efficiency, thereby increasing the overall heat dissipation area, and increasing the overall heat dissipation effect. The inner wall size of the first air guide plate 2 is smaller than the outer size of the base plate 1. The inner wall of the first air guide plate 2 is an L-shaped structure that is snapped onto the bottom outer wall of the base plate 1. The snap-fitting method is used to complete the snap-fitting positioning of the first air guide plate 2, thereby facilitating the first air guide plate 2 and the second air guide plate The installation and positioning of the wind plate 3, the horizontal ends corresponding to each other of the first wind guide plate 2 and the second wind guide plate 3 are evenly opened with positioning holes, and the interior of the positioning holes is penetrated by a protective column 4, and both ends of the protective column 4 are extruded into a step-like structure. After the first wind guide plate 2 and the second wind guide plate 3 are placed, the protective column 4 is penetrated through the interior of the positioning holes, and the two ends of the protective column 4 are extruded and deformed, so that the protective column 4 is positioned between the first wind guide plate 2 and the second wind guide plate 3, so that the uniform insertion and positioning of the protective column 4 further improves its safety in use, reduces the entry and accumulation of external debris, and further ensures its high heat dissipation and stability during use.
[0034] Furthermore, the interval range of adjacent protective columns 4 is between 5mm and 10mm, the needle column 6 is step-shaped, and one end of the spring 7 is on the outer wall of the substrate 1, and the other end abuts against the stepped outer wall of the needle column 6, four needle columns 6 and springs 7 are provided, the heat dissipating fins 5 are evenly distributed on the upper surface of the substrate 1, and the front and rear intervals of the heat dissipating fins 5 are 3.35mm, the left and right intervals of the heat dissipating fins 5 are 3.2mm, the sum of the thicknesses of the substrate 1 and the heat dissipating fins 5 is 9mm, the thickness of the convex plate 9 is 0.5mm, the maximum length of the substrate 1 is 96mm, the maximum width of the substrate 1 is 72mm, the second step width of the substrate 1 is 58mm, the minimum width of the substrate 1 is 49mm, and the length tolerance range of the substrate 1 is: 0<L≤4 tolerance plus or minus 0.1mm, 4<L≤16 tolerance plus or minus 0.2mm, 16<L≤60 tolerance plus or minus 0.3mm, 60<L tolerance plus or minus 0.5mm.
[0035] Working principle: When the present invention is in use, the radiator is first installed and matched with the equipped electrical components, so that the substrate 1 and the electrical components are in contact with each other, thereby realizing the heat dissipation treatment of the electrical components. In addition, during the use of the radiator, due to the distribution of the inclined structure of the first air guide plate 2 and the second air guide plate 3, the contact effect with the wind force can be improved, thereby increasing the ventilation volume entering between the first air guide plate 2 and the second air guide plate 3, and further improving the heat exchange treatment of the outer wall of the heat dissipation fin 5 through the increase in the ventilation volume, thereby greatly improving the heat dissipation effect of the substrate 1. At the same time, through the protective column 4 evenly penetrating between the first air guide plate 2 and the second air guide plate 3, external impurities are blocked, and larger impurities are prevented from covering and adhering to the substrate 1 or the heat dissipation fin 5, thereby further ensuring the stability and efficiency of the use of the radiator.
[0036] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
Claims
1. A plastic radiator based on polymer graphene, characterized in that: include: A base plate (1), the upper surface of the base plate (1) is fixedly connected with a heat dissipation fin (5), the lower part of the base plate (1) is engaged with a first air guide plate (2), the upper surface of the heat dissipation fin (5) is placed with a second air guide plate (3), a protective column (4) passes through the first air guide plate (2) and the second air guide plate (3), a mounting hole (8) is opened on the base plate (1), and a needle column (6) passes through the inside of the mounting hole (8), a spring (7) is sleeved on the outside of the needle column (6), and a convex plate (9) is fixedly connected to the side of the base plate (1) away from the heat dissipation fin (5).
2. The polymer graphene-based plastic heat sink according to claim 2, characterized in that: The substrate (1), the heat dissipation fins (5) and the convex plate (9) are an integrally formed structure, and the substrate (1), the heat dissipation fins (5) and the convex plate (9) comprise the following components in parts by mass: graphene, 20-80 parts; filler, 10-40 parts; adhesive, 5-10 parts; surface treatment agent, 0.5-2 parts; and dispersant, 1-3 parts.
3. The polymer graphene-based plastic heat sink according to claim 1, characterized in that: First, graphene is crushed, and its powder is modified with a surface treatment agent and dried to form stably dispersed modified graphene powder; the modified graphene powder is then mechanically sheared and blended with a filler, an adhesive and a dispersant to obtain a uniformly mixed composite material; finally, plasticization and granulation are performed using an extruder hot pelletizing method to obtain raw materials for a substrate (1), a heat dissipating fin (5) and a convex plate (9).
4. The polymer graphene-based plastic heat sink according to claim 1, characterized in that: The graphene is 40 parts; the filler is 20 parts; the adhesive is 8 parts; the surface treatment agent is 1 part; and the dispersant is 2 parts.
5. The polymer graphene-based plastic heat sink according to claim 1, characterized in that: The filler is at least one of array carbon nanotubes, entangled carbon nanotubes, micro-powder graphite, expanded graphite, flake graphite, high-purity graphite and carbon black; the adhesive is at least one of epoxy acrylic resin, polyurethane acrylic resin, polyvinylidene fluoride, ethylene-vinyl acetate copolymer, thermoplastic elastomer, polyolefin elastomer, styrene thermoplastic elastomer, styrene-butadiene rubber, polyacrylonitrile and polyurethane; the surfactant is at least one of sodium polyacrylate, silane coupling agent, organic metal ester coupling agent, octadecylamine, isocyanate, sodium dodecylbenzene sulfonate, sodium alginate, sodium carboxymethyl cellulose, sodium stearate and sodium hexadecyl sulfonate; the dispersant is at least one of polyvinyl chloride, polyethylene wax, calcium stearate, EVA wax, vinyl bisstearamide, ethylene-methyl acrylate copolymer, polyethylene oxide, polyethylene glycol and polyethylene wax.
6. The polymer graphene-based plastic heat sink according to claim 3, characterized in that: The edge of the first air guide plate (2) is inclined, and the edge of the second air guide plate (3) is also inclined. The inner wall size of the first air guide plate (2) is smaller than the outer size of the base plate (1). The inner wall of the first air guide plate (2) is in an L-shaped structure and is engaged with the bottom outer wall of the base plate (1). Positioning holes are evenly opened at the corresponding horizontal ends of the first air guide plate (2) and the second air guide plate (3), and the interior of the positioning hole is penetrated by a protective column (4), and both ends of the protective column (4) are squeezed into a step-shaped structure.
7. The polymer graphene-based plastic heat sink according to claim 3, characterized in that: The spacing between adjacent protective columns (4) is between 5 mm and 10 mm. The needle column (6) is in a step-like shape, and one end of the spring (7) is located on the outer wall of the substrate (1), and the other end abuts against the stepped outer wall of the needle column (6). Four needle columns (6) and four springs (7) are provided. The heat dissipation fins (5) are evenly distributed on the upper surface of the substrate (1), and the front-to-back spacing of the heat dissipation fins (5) is 3.35 mm, and the left-to-right spacing of the heat dissipation fins (5) is 3.2 mm.
8. The polymer graphene-based plastic heat sink according to claim 3, characterized in that: The sum of the thicknesses of the substrate (1) and the heat dissipation fins (5) is 9 mm, the thickness of the convex plate (9) is 0.5 mm, the maximum length of the substrate (1) is 96 mm, the maximum width of the substrate (1) is 72 mm, the second step width of the substrate (1) is 58 mm, the minimum width of the substrate (1) is 49 mm, and the length tolerance range of the substrate (1) is: 0<L≤4 tolerance plus or minus 0.1 mm, 4<L≤16 tolerance plus or minus 0.2 mm, 16<L≤60 tolerance plus or minus 0.3 mm, 60<L tolerance plus or minus 0.5 mm.