A heat dissipation nano coating structure

Abstract

The present invention discloses a heat dissipation nano coating structure, including a heat dissipation coating, which is evenly laid in an annular shape on the surface of a shell. The present invention conducts the heat on the surface of the base layer to the modified nano heat dissipation filler through a heat dissipation frame, and the modified nano heat dissipation filler has good thermal conductivity and heat dissipation. The heat on the surface of the base layer is transferred to the surface of the nano metal layer by solid-state heat conduction; when the heat transferred to the surface of the heat dissipation frame is conducted to the inside of the modified nano heat dissipation filler, the heat of the heat dissipation frame and the heat of the base layer are also dissipated to the inside of the heat dissipation cavity, and the heat inside the heat dissipation cavity is transferred to the surface of the nano metal layer through a cover sleeve and a leak hole by gaseous heat conduction. The heat on the surface of the shell can be quickly dissipated by two heat conduction methods, further improving the heat dissipation effect of the heat dissipation coating, facilitating the heat inside the speaker to be dissipated through the shell, and reducing the temperature on the shell surface and inside the shell.

Description

Technical Field

[0001] The invention belongs to the technical field of heat dissipation coatings, and in particular relates to a heat dissipation nano coating structure. Background Art

[0002] As electronic devices develop towards high power and miniaturization, heat dissipation has become a bottleneck problem restricting the device structure. If the heat cannot be released quickly, the device will be seriously damaged. Therefore, heat dissipation has become the first issue that must be considered when designing any device.

[0003] When the existing speakers are heat-dissipated, only the heat dissipation holes on the shell surface are used to dissipate the heat of the speakers. The heat on the speaker surface cannot be dissipated quickly, and the heat on the shell surface can easily cause deformation of the speaker surface. Since the heat of the speakers cannot be dissipated quickly, the electronic components inside the speakers can easily be damaged.

[0004] Therefore, it is necessary to invent a heat dissipation nano-coating structure to solve the above problems. Summary of the invention

[0005] In view of the above problems, the present invention provides a heat dissipation nano-coating structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a heat dissipation nano-coating structure, comprising a heat dissipation coating, wherein the heat dissipation coating is evenly laid in an annular shape on the surface of a shell, a bell mouth is arranged at the center of the top surface of the shell, a protective film is laid on the top surface of the bell mouth, and the heat dissipation coating is annularly wrapped around the bell mouth, a nano-metal layer is arranged on the surface of the heat dissipation coating, a gaseous heat dissipation structure and a solid heat dissipation structure are arranged on the inner side of the nano-metal layer, the solid heat dissipation structure is arranged as a modified nano-heat dissipation filler, and the solid heat dissipation structure is annularly wrapped around the surface of the gaseous heat dissipation structure.

[0007] Furthermore, the modified nano heat dissipation filler is composed of the following raw materials in parts by weight: 50-60 parts of nano graphene sheets, 30-35 parts of nano silicon dioxide, 20-25 parts of nano gold powder, 15-20 parts of nano aluminum-magnesium alloy powder, 10-20 parts of diatomaceous earth, 8-10 parts of polyurethane resin, 50-55 parts of polypropylene and 5-10 parts of organic solvent.

[0008] Furthermore, the preparation process of the modified nano heat dissipation filler is as follows:

[0009] S1, adding nano-graphene sheets, nano-silicon dioxide, nano-gold powder and nano-aluminum-magnesium alloy powder into a crucible, sealing the crucible, and vibrating the crucible with a vibrator to obtain a uniform mixture;

[0010] S2, opening the opening of the crucible, heating the crucible, adding the polyurethane resin, polypropylene, organic solvent and diatomaceous earth into the mixture 1 in the crucible in sequence, heating and stirring, to obtain a molten mixture 2;

[0011] S3, pouring the molten mixture onto the surface of the gaseous heat dissipation structure, the molten mixture is annularly wrapped around the surface of the gaseous heat dissipation structure to form a modified nano heat dissipation filler.

[0012] Furthermore, the gaseous heat dissipation structure includes a heat dissipation frame, the modified nano heat dissipation filler is evenly filled on the top surface of the heat dissipation frame, and the top opening of the heat dissipation frame is flush with the top surface of the modified nano heat dissipation filler, a cover sleeve is pasted corresponding to the top opening of the heat dissipation frame, a plurality of leakage holes are evenly arranged on the surface of the cover sleeve, and the nano metal layer is laid on the modified nano heat dissipation filler and the top surface of the cover sleeve, and a heat dissipation cavity is formed on the inner side of the cover sleeve and the heat dissipation frame, and the heat dissipation cavity is connected with the nano metal layer through the leakage holes.

[0013] Furthermore, the heat sink and the cover are both made of any one of carbon nanotubes, graphene, and nano-carbon fibers, or a combination of two or more thereof.

[0014] Furthermore, a base layer is provided at the bottom of the heat dissipation frame, the bottom surface of the heat dissipation frame is fixedly mounted on the surface of the base layer, and the base layer is provided as a graphene layer.

[0015] Furthermore, an elastic layer is arranged at the bottom of the base layer, a plurality of spring sheets are arranged inside the elastic layer, and the bottom of the elastic layer is bonded to the surface of the shell through an adhesive layer.

[0016] Furthermore, the nano-metal layer is any one of copper, nickel, iron, magnesium and aluminum, or an alloy of two or more thereof.

[0017] Technical effects and advantages of the present invention:

[0018] 1. The present invention conducts the heat on the surface of the base layer to the modified nano heat dissipation filler through the heat dissipation frame. The modified nano heat dissipation filler has good thermal conductivity and heat dissipation. The heat on the surface of the base layer is transferred to the surface of the nano metal layer by solid-state heat conduction. When the heat transferred to the surface of the heat dissipation frame is conducted to the inside of the modified nano heat dissipation filler, the heat of the heat dissipation frame and the heat of the base layer are also dissipated to the inside of the heat dissipation cavity. The heat inside the heat dissipation cavity is transferred to the surface of the nano metal layer through the cover and the leakage hole by gaseous heat conduction. The two heat conduction methods can quickly dissipate the heat on the surface of the shell, further improve the heat dissipation effect of the heat dissipation coating, facilitate the heat inside the speaker to be dissipated through the shell, and reduce the temperature of the shell surface and the inside of the shell.

[0019] 2. The present invention uses an elastic layer to adhere to the surface of the shell by using an adhesive layer, and uses multiple springs inside the elastic layer to absorb the vibration of the shell during the process, thereby preventing the vibration of the shell from being directly transmitted to the modified nano heat dissipation filler and the gaseous heat dissipation structure, and avoiding excessive vibration from causing a gap between the modified nano heat dissipation filler and the heat dissipation frame, thereby ensuring that the modified nano heat dissipation filler maintains comprehensive contact with the heat dissipation frame, and facilitating the rapid conduction of heat from the heat dissipation frame to the inside of the modified nano heat dissipation filler.

[0020] Other features and advantages of the present invention will be described in the following description, and partly become obvious from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of a cross-sectional structure of a shell according to an embodiment of the present invention is shown;

[0023] Figure 2 A cross-sectional structure diagram of a heat dissipation coating according to an embodiment of the present invention is shown;

[0024] In the figure: 1. heat dissipation coating; 2. shell; 3. bell mouth; 4. protective film; 5. nano metal layer; 6. modified nano heat dissipation filler; 7. heat dissipation frame; 8. cover; 9. leakage hole; 10. heat dissipation cavity; 11. base layer; 12. elastic layer; 13. spring; 14. adhesive layer. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0026] The present invention provides a heat dissipation nano coating structure, such as Figure 1-2As shown, it includes a heat dissipation coating 1, which is evenly laid in an annular shape on the surface of the shell 2, a bell mouth 3 is arranged at the center of the top surface of the shell 2, a protective film 4 is laid on the top surface of the bell mouth 3, and the heat dissipation coating 1 is annularly wrapped around the bell mouth 3, and a nano metal layer 5 is arranged on the surface of the heat dissipation coating 1, and a gas heat dissipation structure and a solid heat dissipation structure are arranged inside the nano metal layer 5, and the solid heat dissipation structure is arranged as a modified nano heat dissipation filler 6, and the solid heat dissipation structure is annularly wrapped on the surface of the gas heat dissipation structure. The multiple heat dissipation holes on the surface of the shell 2 of the sound can dissipate the heat generated inside the shell 2; and the heat generated by the work inside the shell 2 is transmitted to the surface of the shell 2, at this time, the solid heat dissipation structure and the gas heat dissipation structure can conduct the heat on the surface of the shell 2, and the nano metal layer 5 can exchange the heat conducted by the solid heat dissipation structure and the gas heat dissipation structure with the outside world, further improving the efficient heat dissipation effect of the heat dissipation coating 1.

[0027] Embodiment 1:

[0028] The modified nano heat dissipation filler 6 is composed of the following raw materials in parts by weight: 50 parts of nano graphene sheets, 30 parts of nano silicon dioxide, 20 parts of nano gold powder, 15 parts of nano aluminum magnesium alloy powder, 10 parts of diatomaceous earth, 8 parts of polyurethane resin, 50 parts of polypropylene and 5 parts of organic solvent.

[0029] Embodiment 2:

[0030] The modified nano heat dissipation filler 6 is composed of the following raw materials in parts by weight: 60 parts of nano graphene sheets, 35 parts of nano silicon dioxide, 25 parts of nano gold powder, 20 parts of nano aluminum magnesium alloy powder, 20 parts of diatomaceous earth, 10 parts of polyurethane resin, 55 parts of polypropylene and 10 parts of organic solvent.

[0031] Embodiment 3:

[0032] The modified nano heat dissipation filler 6 is composed of the following raw materials in parts by weight: 55 parts of nano graphene sheets, 33 parts of nano silicon dioxide, 23 parts of nano gold powder, 18 parts of nano aluminum magnesium alloy powder, 15 parts of diatomaceous earth, 9 parts of polyurethane resin, 53 parts of polypropylene and 8 parts of organic solvent.

[0033] The preparation process of the modified nano heat dissipation filler 6 is as follows:

[0034] S1, adding nano-graphene sheets, nano-silicon dioxide, nano-gold powder and nano-aluminum-magnesium alloy powder into a crucible, sealing the crucible, and vibrating the crucible with a vibrator to obtain a uniform mixture;

[0035] S2, opening the opening of the crucible, heating the crucible, adding the polyurethane resin, polypropylene, organic solvent and diatomaceous earth into the mixture 1 in the crucible in sequence, heating and stirring, to obtain a molten mixture 2;

[0036] S3, pouring the molten mixture 2 onto the surface of the gaseous heat dissipation structure, the molten mixture 2 is annularly wrapped around the surface of the gaseous heat dissipation structure to form a modified nano heat dissipation filler 6.

[0037] The preparation process of the modified nano heat dissipation filler 6 was used to prepare Examples 1-3 respectively, to obtain three modified nano heat dissipation fillers 6, and thermal conductivity and heat dissipation experiments were conducted on the three modified nano heat dissipation fillers 6 respectively.

[0038] Test table:

[0039]

[0040] It can be seen from the test table that the modified nano heat dissipation filler 6 obtained in Example 2 is ahead of the modified nano heat dissipation filler 6 obtained in Example 1 and Example 3 in terms of thermal conductivity and heat dissipation. The modified nano heat dissipation filler 6 obtained in Example 2 has thermal conductivity, can absorb heat in the shell 2, and can cooperate with the nano metal layer 5 to quickly dissipate heat for the shell 2.

[0041] exist Figure 2 In the embodiment, the gaseous heat dissipation structure includes a heat dissipation frame 7, the modified nano heat dissipation filler 6 is uniformly filled on the top surface of the heat dissipation frame 7, and the top opening of the heat dissipation frame 7 is flush with the top surface of the modified nano heat dissipation filler 6, a cover sleeve 8 is pasted corresponding to the top opening of the heat dissipation frame 7, and a plurality of leak holes 9 are uniformly arranged on the surface of the cover sleeve 8, and the nano metal layer 5 is laid on the modified nano heat dissipation filler 6 and the top surface of the cover sleeve 8, and the cover sleeve 8 and the inner side of the heat dissipation frame 7 form a heat dissipation cavity 10, and the heat dissipation cavity 10 is correspondingly connected to the nano metal layer 5 through the leak holes 9. When the heat transferred to the surface of the heat dissipation frame 7 is conducted to the inside of the modified nano heat dissipation filler 6, the heat of the heat dissipation frame 7 and the heat of the base layer 11 are also dissipated to the inside of the heat dissipation cavity 10, and the heat inside the heat dissipation cavity 10 is transferred to the surface of the nano metal layer 5 through the cover sleeve 8 and the leak holes 9 by means of gaseous heat conduction. The heat on the surface of the housing 2 can be quickly dissipated by using two heat conduction methods, further improving the heat dissipation effect of the heat dissipation coating 1.

[0042] exist Figure 2 In the embodiment, the nano metal layer 5 is an alloy of any one of copper, nickel, iron, magnesium and aluminum or a combination of two or more thereof. The heat sink 7 and cover 8 are both made of any one of carbon nanotubes, graphene and nano carbon fibers or a combination of two or more thereof. Carbon nanotubes, graphene and nano carbon fibers all have good heat absorption capacity. With the cooperation of the modified nano heat dissipation filler 6 and the gaseous heat dissipation structure, the heat absorbed by the heat sink 7 and cover 8 is conveniently conducted to the surface of the nano metal layer 5, so that the nano metal layer 5 can dissipate the heat.

[0043] exist Figure 2 In the embodiment, a base layer 11 is provided at the bottom of the heat sink 7, and the bottom surface of the heat sink 7 is fixedly mounted on the surface of the base layer 11, and the base layer 11 is provided as a graphene layer. The base layer 11 can generate comprehensive contact with the surface of the housing 2 through the elastic layer 12, so that the base layer 11 can quickly absorb heat from the surface of the housing 2, and the base layer 11 conducts heat to the surface of the nano metal layer 5 through two heat transfer modes: solid and gaseous.

[0044] exist Figure 2 In the embodiment, an elastic layer 12 is provided at the bottom of the base layer 11, a plurality of spring pieces 13 are provided inside the elastic layer 12, and the bottom of the elastic layer 12 is bonded to the surface of the housing 2 via an adhesive layer 14. The elastic layer 12 is bonded to the surface of the housing 2 by the adhesive layer 14, and the plurality of spring pieces 13 inside the elastic layer 12 can absorb the vibration of the housing 2 during the process, so as to avoid the vibration of the housing 2 being directly transmitted to the modified nano heat dissipation filler 6 and the gaseous heat dissipation structure, and to avoid excessive vibration causing a gap between the modified nano heat dissipation filler 6 and the heat dissipation frame 7.

[0045] Working principle of the present invention:

[0046] Refer to the instruction manual Figure 1-2 When the shell 2 needs to be heat-dissipated, the heat inside the shell 2 is dissipated through the heat dissipation holes, and the heat inside the shell 2 is transferred to the surface of the shell 2. At this time, the heat is first conducted to the surface of the base layer 11, and the heat on the surface of the base layer 11 is transmitted to the surface of the nanometal layer 5 through solid and gas transfer methods, thereby accelerating the heat conduction speed.

[0047] The heat on the surface of the base layer 11 is conducted to the modified nano heat dissipation filler 6 through the heat dissipation frame 7. The modified nano heat dissipation filler 6 has good thermal conductivity and heat dissipation. The heat on the surface of the base layer 11 is transferred to the surface of the nano metal layer 5 by solid-state heat conduction. When the heat transferred to the surface of the heat dissipation frame 7 is conducted to the inside of the modified nano heat dissipation filler 6, the heat of the heat dissipation frame 7 and the heat of the base layer 11 are also dissipated to the inside of the heat dissipation cavity 10. The heat inside the heat dissipation cavity 10 is transferred to the surface of the nano metal layer 5 through the cover 8 and the leakage hole 9 by gaseous heat conduction. The heat on the surface of the housing 2 can be quickly dissipated by two heat conduction methods, further improving the heat dissipation effect of the heat dissipation coating 1.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A heat dissipation nano coating structure, characterized in that: The invention comprises a heat dissipation coating (1), wherein the heat dissipation coating (1) is evenly laid in an annular shape on the surface of a shell (2), a bell mouth (3) is arranged at the center of the top surface of the shell (2), a protective film (4) is laid on the top surface of the bell mouth (3), and the heat dissipation coating (1) is annularly wrapped around the bell mouth (3), a nano metal layer (5) is arranged on the surface of the heat dissipation coating (1), a gas heat dissipation structure and a solid heat dissipation structure are arranged inside the nano metal layer (5), the solid heat dissipation structure is arranged as a modified nano heat dissipation filler (6), and the solid heat dissipation structure is annularly wrapped around the surface of the gas heat dissipation structure; The gaseous heat dissipation structure comprises a heat dissipation frame (7), the modified nano heat dissipation filler (6) is evenly filled on the top surface of the heat dissipation frame (7), and the top opening of the heat dissipation frame (7) is flush with the top surface of the modified nano heat dissipation filler (6), a cover sleeve (8) is pasted corresponding to the top opening of the heat dissipation frame (7), a surface of the cover sleeve (8) is evenly provided with a plurality of leakage holes (9), and a nano metal layer (5) is laid on the modified nano heat dissipation filler (6) and the top surface of the cover sleeve (8), and a heat dissipation cavity (10) is formed inside the cover sleeve (8) and the heat dissipation frame (7), and the heat dissipation cavity (10) is connected to the nano metal layer (5) through the leakage holes (9).

2. The heat dissipation nano-coating structure according to claim 1, characterized in that: The modified nano heat dissipation filler (6) is composed of the following raw materials in parts by weight: 50-60 parts of nano graphene sheets, 30-35 parts of nano silicon dioxide, 20-25 parts of nano gold powder, 15-20 parts of nano aluminum magnesium alloy powder, 10-20 parts of diatomaceous earth, 8-10 parts of polyurethane resin, 50-55 parts of polypropylene and 5-10 parts of organic solvent.

3. The heat dissipation nano-coating structure according to claim 2, characterized in that: The preparation process of the modified nano heat dissipation filler (6) is as follows: S1, adding nano-graphene sheets, nano-silicon dioxide, nano-gold powder and nano-aluminum-magnesium alloy powder into a crucible, sealing the crucible, and vibrating the crucible with a vibrator to obtain a uniform mixture; S2, opening the opening of the crucible, heating the crucible, adding the polyurethane resin, polypropylene, organic solvent and diatomaceous earth into the mixture 1 in the crucible in sequence, heating and stirring, to obtain a molten mixture 2; S3, pouring the molten mixture onto the surface of the gaseous heat dissipation structure, the molten mixture is annularly wrapped around the surface of the gaseous heat dissipation structure to form a modified nano heat dissipation filler (6).

4. The heat dissipation nano-coating structure according to claim 1, characterized in that: The heat sink (7) and the cover (8) are both made of any one of carbon nanotubes, graphene, and nano-carbon fibers, or a combination of two or more of them.

5. The heat dissipation nano-coating structure according to claim 1, characterized in that: A base layer (11) is provided at the bottom of the heat dissipation frame (7), the bottom surface of the heat dissipation frame (7) is fixedly mounted on the surface of the base layer (11), and the base layer (11) is provided as a graphene layer.

6. The heat dissipation nano-coating structure according to claim 5, characterized in that: An elastic layer (12) is arranged at the bottom of the base layer (11), a plurality of spring sheets (13) are arranged inside the elastic layer (12), and the bottom of the elastic layer (12) is bonded to the surface of the shell (2) via an adhesive layer (14).

7. The heat dissipation nano-coating structure according to claim 1, characterized in that: The nano metal layer (5) is any one of copper, nickel, iron, magnesium and aluminum, or an alloy of two or more thereof.

Images