CN110545644B - Full cladding formula graphite alkene radiator - Google Patents
Full cladding formula graphite alkene radiator Download PDFInfo
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- CN110545644B CN110545644B CN201910672257.4A CN201910672257A CN110545644B CN 110545644 B CN110545644 B CN 110545644B CN 201910672257 A CN201910672257 A CN 201910672257A CN 110545644 B CN110545644 B CN 110545644B
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- heat dissipation
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- 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
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- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
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Abstract
The invention discloses a fully-coated graphene radiator, which comprises a body; this body formula structure as an organic whole, it is including the heat dissipation base, and the bottom surface of this heat dissipation base is upwards sunken to be equipped with an holding chamber and a plurality of fixed orifices, and the integrative top surface that has extended of this heat dissipation base has a plurality of heat dissipation posts, and the top surface of each heat dissipation post is recessed to be formed with the horn mouth, and this horn mouth is through the bottom surface in a passageway intercommunication holding chamber, and each horn mouth and passageway are all filled with modified graphene filler, and this modified graphene filler covers the bottom surface to the holding chamber completely. Through the body that adopts the integral type structure for this product simple structure, the production preparation is easy, and, through set up horn mouth and passageway on each heat dissipation post, and the cooperation sets up modified graphite alkene stopping, and the design of horn mouth has utilized thermal radiation diffusion principle, makes the heat can the rapid transfer diffusion, has effectively improved the radiating efficiency, the more ideal of radiating effect.
Description
Technical Field
The invention relates to the technical field of radiators, in particular to a fully-coated graphene radiator.
Background
The power converter module is mainly used for realizing conversion between AC and DC, and generates more heat in the working process, so that a radiator is required to be adopted for heat dissipation to ensure normal operation of the power converter module.
At present, the radiator applied to the power converter module is mainly a fin type radiator, the structure is complex, the production and the assembly are difficult, and the radiating efficiency is low. Therefore, there is a need for an improved heat sink structure.
Disclosure of Invention
In view of the above, the present invention is directed to the defects in the prior art, and a main object of the present invention is to provide a fully-encapsulated graphene heat sink, which can effectively solve the problems of complex structure, difficult production and assembly, and low heat dissipation efficiency of the conventional heat sink.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fully-coated graphene radiator comprises a body; this body formula structure as an organic whole, it is including the heat dissipation base, the bottom surface of this heat dissipation base is upwards sunken to be equipped with a holding chamber and a plurality of fixed orifices, these a plurality of fixed orifices are located the periphery in holding chamber, the integrative top surface that extends of this heat dissipation base has a plurality of heat dissipation posts, these a plurality of heat dissipation post intervals are arranged, the top surface of each heat dissipation post is recessed to be formed with the horn mouth, this horn mouth is through the bottom surface in a passageway intercommunication holding chamber, it has modified graphene packing all to fill in each horn mouth and the passageway, this modified graphene packing covers the bottom surface to the holding chamber completely.
As a preferable scheme, the modified graphene filler is composed of the following raw materials in parts by weight: 45-55 parts of graphene nanosheets, 25-30 parts of nano titanium dioxide, 25-30 parts of nano silver powder, 15-18 parts of nano aluminum magnesium alloy powder, 3-5 parts of sodium chloride, 8-10 parts of acrylic resin, 70-80 parts of polypropylene, 15-18 parts of organic solvent and 15-20 parts of modified diatomite.
As a preferable scheme, the preparation method of the modified graphene filler comprises the following steps: firstly, sequentially adding graphene nanosheets, nano titanium dioxide, nano silver powder and nano aluminum magnesium alloy powder into a container for ultrasonic dispersion; then, putting the uniformly dispersed materials into a heating device, sequentially adding sodium chloride, acrylic resin, polypropylene, an organic solvent and modified diatomite, and heating while uniformly stirring to form a molten liquid; when the modified graphene filling material is used, a layer of bonding agent is sprayed on the outer surface of the body, then the molten liquid is sprayed on the body, and then the modified graphene filling material can be formed after drying treatment.
As a preferred scheme, the heat dissipation base is square, and all side surfaces of the heat dissipation base are concavely provided with positioning grooves.
Preferably, the plurality of heat dissipation columns are arranged in a plurality of rows, and each row of heat dissipation columns is staggered with each other.
Preferably, the heat dissipation column is cylindrical.
Preferably, the depth of the bell mouth is larger than half of the length of the heat dissipation column, and the channel is a cylindrical channel.
As a preferable scheme, the inner peripheral side wall of the accommodating cavity is completely covered with a heat-conducting adhesive layer containing nano silver powder.
Compared with the prior art, the invention has obvious advantages and beneficial effects, and specifically, the technical scheme includes that:
through the body that adopts the integral type structure for this product simple structure, the production preparation is easy, and, through set up horn mouth and passageway on each heat dissipation post, and the cooperation sets up modified graphite alkene stopping, and the design of horn mouth has utilized thermal radiation diffusion principle, makes the heat can the rapid transfer diffusion, has effectively improved the radiating efficiency, the more ideal of radiating effect.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a perspective view of a preferred embodiment of the present invention;
FIG. 2 is a perspective view of another angle of the preferred embodiment of the present invention;
FIG. 3 is a cross-sectional view of a preferred embodiment of the present invention.
The attached drawings indicate the following:
10. body 11 and heat dissipation base
12. Heat dissipation column 101 and accommodating cavity
102. Fixing hole 103, positioning groove
104. Flare 105, channel
20. Modified graphene filler 30 and a heat-conducting adhesive layer.
Detailed Description
Referring to fig. 1 to 3, a specific structure of a preferred embodiment of the present invention is shown, which includes a body 10.
The body 10 is an integrated structure, is made of aluminum alloy, and comprises a heat dissipation base 11, wherein the bottom surface of the heat dissipation base 11 is upwards concavely provided with an accommodating cavity 101 and a plurality of fixing holes 102, and the plurality of fixing holes 102 are positioned at the periphery of the accommodating cavity 101; in this embodiment, the accommodating cavity 101 is adapted to the shape of the heating element, the heat dissipation base 11 is square, each side surface of the heat dissipation base is recessed with a positioning slot 103, four fixing holes 102 are distributed at each corner of the heat dissipation base 11, and each fixing hole 102 is a screw hole.
A plurality of heat dissipation columns 12 extend out of the top surface of the heat dissipation base 11, the heat dissipation columns 12 are arranged at intervals, a bell mouth 104 is formed on the top surface of each heat dissipation column 12, the bell mouth 104 is communicated with the bottom surface of the accommodating cavity 101 through a channel 105, modified graphene filler 20 is filled in each bell mouth 104 and the channel 105, and the modified graphene filler 20 completely covers the bottom surface of the accommodating cavity 101. In this embodiment, the heat-dissipating studs 12 are arranged in multiple rows, each row of heat-dissipating studs 12 is staggered with respect to each other, the heat-dissipating studs 12 are cylindrical, the depth of the bell-mouth 104 is greater than half of the length of the heat-dissipating studs 12, and the channel 105 is a cylindrical channel; the modified graphene filler 20 is prepared from the following raw materials in parts by weight: 45-55 parts of graphene nanosheets, 25-30 parts of nano titanium dioxide, 25-30 parts of nano silver powder, 15-18 parts of nano aluminum magnesium alloy powder, 3-5 parts of sodium chloride, 8-10 parts of acrylic resin, 70-80 parts of polypropylene, 15-18 parts of organic solvent and 15-20 parts of modified diatomite.
The preparation method of the modified graphene filler 20 comprises the following steps: firstly, sequentially adding graphene nanosheets, nano titanium dioxide, nano silver powder and nano aluminum magnesium alloy powder into a container for ultrasonic dispersion; then, putting the uniformly dispersed materials into a heating device, sequentially adding sodium chloride, acrylic resin, polypropylene, an organic solvent and modified diatomite, and heating while uniformly stirring to form a molten liquid; when the modified graphene filling material 20 is used, a layer of bonding agent is sprayed on the outer surface of the body, then the molten liquid is sprayed on the body, and then the modified graphene filling material 20 can be formed after drying treatment.
Two identical bodies are taken, a common heat dissipation coating and the modified graphene filler 20 prepared by the formula and the method are respectively sprayed on the two bodies to form two products to be tested, the two products with the tests are tested for heat dissipation efficiency and coating adhesive force, the test method is the prior art, and the test result shows that the modified graphene coating layer 20 prepared by the formula and the method can effectively improve the heat dissipation efficiency by more than 50%, the adhesive force with the body 10 can be increased by more than two times, and the modified graphene coating layer 20 is not easy to fall off.
And the inner peripheral side wall of the accommodating cavity 101 is completely covered with the heat-conducting adhesive layer 30 containing the nano silver powder, so that the heat-conducting efficiency is improved.
Detailed description the method of use of this example is as follows:
during the use, heating element fixes in the front of circuit board, then, covers heating element with this product dustcoat for heating element imbeds in the holding chamber 101, heating element's top surface and the laminating contact of modified graphite alkene stopping 20, heating element's week side and the laminating contact of heat-conducting glue layer 30, then, adopt the bolt to pass from the back of circuit board and fixed orifices 102 fixed connection, make this product fix on the circuit board. When the heating element generates heat during operation, the heat is rapidly conducted to the body 10 through the modified graphene filler 20 and the heat conducting adhesive layer 30, and then is dissipated outwards from the body 10, and meanwhile, most of the heat on the modified graphene filler 20 is directly dissipated outwards, so that efficient heat dissipation is realized.
The design of the invention is characterized in that: through the body that adopts the integral type structure for this product simple structure, the production preparation is easy, and, through set up horn mouth and passageway on each heat dissipation post, and the cooperation sets up modified graphite alkene stopping, and the design of horn mouth has utilized thermal radiation diffusion principle, makes the heat can the rapid transfer diffusion, has effectively improved the radiating efficiency, the more ideal of radiating effect.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (8)
1. The utility model provides a full cladding formula graphite alkene radiator which characterized in that: comprises a body; this body formula structure as an organic whole, it is including the heat dissipation base, the bottom surface of this heat dissipation base is upwards sunken to be equipped with a holding chamber and a plurality of fixed orifices, these a plurality of fixed orifices are located the periphery in holding chamber, the integrative top surface that extends of this heat dissipation base has a plurality of heat dissipation posts, these a plurality of heat dissipation post intervals are arranged, the top surface of each heat dissipation post is recessed to be formed with the horn mouth, this horn mouth is through the bottom surface in a passageway intercommunication holding chamber, it has modified graphene packing all to fill in each horn mouth and the passageway, this modified graphene packing covers the bottom surface to the holding chamber completely.
2. The fully encapsulated graphene heat spreader of claim 1, wherein: the modified graphene filler is prepared from the following raw materials in parts by weight: 45-55 parts of graphene nanosheets, 25-30 parts of nano titanium dioxide, 25-30 parts of nano silver powder, 15-18 parts of nano aluminum magnesium alloy powder, 3-5 parts of sodium chloride, 8-10 parts of acrylic resin, 70-80 parts of polypropylene, 15-18 parts of organic solvent and 15-20 parts of modified diatomite.
3. The fully encapsulated graphene heat spreader of claim 2, wherein: the preparation method of the modified graphene filler comprises the following steps: firstly, sequentially adding graphene nanosheets, nano titanium dioxide, nano silver powder and nano aluminum magnesium alloy powder into a container for ultrasonic dispersion; then, putting the uniformly dispersed materials into a heating device, sequentially adding sodium chloride, acrylic resin, polypropylene, an organic solvent and modified diatomite, and heating while uniformly stirring to form a molten liquid; when the modified graphene filling material is used, a layer of bonding agent is sprayed on the outer surface of the body, then the molten liquid is sprayed on the body, and then the modified graphene filling material can be formed after drying treatment.
4. The fully encapsulated graphene heat spreader of claim 1, wherein: the heat dissipation base is square, and all sides of the heat dissipation base are concavely provided with positioning grooves.
5. The fully encapsulated graphene heat spreader of claim 1, wherein: the plurality of radiating columns are arranged in a plurality of rows, and each row of radiating columns are arranged in a staggered mode.
6. The fully encapsulated graphene heat spreader of claim 1, wherein: the heat dissipation column is cylindrical.
7. The fully encapsulated graphene heat spreader of claim 1, wherein: the depth of the bell mouth is larger than half of the length of the heat dissipation column, and the channel is a cylindrical channel.
8. The fully encapsulated graphene heat spreader of claim 1, wherein: the inner peripheral side wall of the containing cavity is completely covered with a heat-conducting adhesive layer containing nano silver powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910672257.4A CN110545644B (en) | 2019-07-24 | 2019-07-24 | Full cladding formula graphite alkene radiator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910672257.4A CN110545644B (en) | 2019-07-24 | 2019-07-24 | Full cladding formula graphite alkene radiator |
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| Publication Number | Publication Date |
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| CN110545644A CN110545644A (en) | 2019-12-06 |
| CN110545644B true CN110545644B (en) | 2020-10-16 |
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| CN201910672257.4A Active CN110545644B (en) | 2019-07-24 | 2019-07-24 | Full cladding formula graphite alkene radiator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150040046A (en) * | 2013-10-04 | 2015-04-14 | 엘지이노텍 주식회사 | Lighting device |
| CN106449565B (en) * | 2016-10-31 | 2019-05-17 | 常州瑞丰特科技有限公司 | Manufacturing method based on graphene bigger serface flexible heat sink device |
| CN207424799U (en) * | 2017-11-16 | 2018-05-29 | 成都睿达星辰科技有限公司 | A kind of large server heat radiating device special |
| CN208353785U (en) * | 2018-02-28 | 2019-01-08 | 广东德瑞源新材料科技有限公司 | The high-efficiency radiator of integrated strip graphite ene coatings |
| CN208860191U (en) * | 2018-07-23 | 2019-05-14 | 广东德瑞源新材料科技有限公司 | The graphene radiator of automobile |
| CN208657243U (en) * | 2018-07-23 | 2019-03-26 | 广东德瑞源新材料科技有限公司 | Heavy duty detergent radiator for security device |
| CN208490104U (en) * | 2018-08-03 | 2019-02-12 | 北京美景华夏环保科技有限公司 | The radiator of mobile communication base station |
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