High-thermal-conductivity flexible graphene patch

Abstract

The utility model provides a high-thermal-conductivity flexible graphene patch, which comprises a patch body, a positioning groove arranged on the surface of the patch body, a magnetic sheet embedded in the positioning groove, a magnetic film arranged below the patch body, back glue arranged on the back surface of the magnetic film and adhered to a target object from the back surface of the magnetic film, and the patch body and the target object are connected by the magnetic sheet under the action of magnetic attraction. The patch body is sequentially provided with a protective layer, an anti-oxidation layer, a second adhesive layer, a heat conduction layer, a first adhesive layer, a base layer and an insulating layer from top to bottom. The anti-oxidation layer is arranged on the outer side of the heat conduction layer, so that the heat conduction layer is prevented from being oxidized by air after long-term use to affect the heat conduction and heat dissipation effect, and the use effect can be improved; and mounting and dismounting are easy, secondary utilization and recycling can be achieved, damage to a target object is avoided during dismounting, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heat dissipation patch technical field especially relates to a high thermal conductivity flexible graphene patch. BACKGROUND

[0002] The market generally selects graphene sheet as the heat dissipation material, and utilizes the heat conduction and the light and thin advantageous characteristics of the graphene sheet.

[0003] Patent document CN219068813U a kind of composite heat dissipation patch with high conductivity, composite heat dissipation patch body further include buffer layer, heat dissipation layer and conductive foil layer, buffer layer, heat dissipation layer and conductive foil layer are all sheet structure, buffer layer, heat dissipation layer and conductive foil layer between all are equipped with composite adhesive layer, the top end face and bottom end face of composite adhesive layer all have adhesion, buffer layer, heat dissipation layer and conductive foil layer from top to bottom successively through composite adhesive layer and are bonded and fixed, by conductive foil layer as the core function layer of electricity, simultaneously composite integration of conductive foil layer and the heat dissipation layer consisting of graphite sheet, with good heat conduction and electricity function, simultaneously avoid the unstable resistivity of conductive graphite sheet under different temperatures, guarantee the conductivity stability of composite heat dissipation patch.

[0004] In the above scheme, the heat dissipation patch adheres each layer through the composite adhesive layer, and is adhered to the bottom of the conductive foil layer through the release film layer. However, the adhesive connection mode is too small in adhesion and is easily detached, is greatly affected by the external environment, and is too large in adhesion and cannot be torn off for secondary use or recycling. In addition, the heat dissipation patch and most graphene heat dissipation patches on the market do not consider the oxidation of graphene under long-term use conditions. Therefore, it is necessary to provide a high-thermal-conductivity flexible graphene patch to solve the deficiencies of the prior art. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art and provides a high-thermal-conductivity flexible graphene patch.

[0006] The utility model employs the following technical scheme to solve the technical problem:

[0007] A high-thermal-conductivity flexible graphene patch includes a patch body, the patch body surface is provided with a positioning groove, a magnetic sheet is embedded in the positioning groove, a magnetic film is arranged below the patch body, the back surface of the magnetic film is provided with a back adhesive, the target object is adhered to the back surface of the magnetic film, and the patch body is connected to the target object through magnetic attraction.

[0008] The patch body comprises a base layer, a heat conduction layer arranged above the base layer, a first adhesive layer arranged between the base layer and the heat conduction layer, a top surface of the first adhesive layer connected to a bottom surface of the heat conduction layer, a bottom surface of the first adhesive layer connected to a top surface of the base layer, an oxidation-resistant layer arranged above the heat conduction layer, a second adhesive layer arranged between the heat conduction layer and the oxidation-resistant layer, a top surface of the second adhesive layer connected to a bottom surface of the oxidation-resistant layer, a bottom surface of the second adhesive layer connected to a top surface of the heat conduction layer, a protective layer arranged above the oxidation-resistant layer, a top surface of the oxidation-resistant layer connected to a bottom surface of the protective layer, an insulating layer arranged below the base layer, and a bottom surface of the base layer connected to a top surface of the insulating layer.

[0009] The magnetic film adhering position is correspondingly arranged with the positioning groove, so that the magnet and the magnetic film are prevented from being small in magnetism and causing the patch body to fall off.

[0010] The magnetic film adhering position is correspondingly arranged with the positioning groove, so that the magnet and the magnetic film are prevented from being small in magnetism and causing the patch body to fall off.

[0011] The base layer is made of a polymer material, and the base layer provides the patch body with a basic shape and support.

[0012] The heat conduction layer is made of a graphene layer, and the heat conduction layer is responsible for heat transfer.

[0013] The oxidation-resistant layer is made of an aluminum oxide layer, and the oxidation-resistant layer can prevent the heat conduction layer from being oxidized and thus affecting the heat conduction performance.

[0014] The insulating layer and the protective layer respectively correspond to the base layer and the oxidation-resistant layer to protect the base layer and the oxidation-resistant layer from being contaminated by dust and thus affecting the use effect.

[0015] The first adhesive layer and the second adhesive layer are both heat-conducting adhesive, and the heat-conducting adhesive can simultaneously have the functions of adhesion and heat conduction.

[0016] In summary, the patch body has the following beneficial effects:

[0017] 1. The patch body is simple to install and dismount, can be reused and recycled, does not cause damage to the target object during dismounting, and is highly practical.

[0018] 2. The patch body is provided with the oxidation-resistant layer outside the heat conduction layer, so that the heat conduction layer is prevented from being oxidized by air during long-term use and thus affecting the heat conduction and heat dissipation effect, and the use effect is improved.

[0019] 3. The patch body is flexible, can be used on not only conventional target objects but also special-shaped target objects, and can be cut according to the shape of the target object, and thus has a wide range of applications. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is an exploded view of the patch body.

[0021] Figure 2 is a plan view of the present application.

[0022] Figure 3 is a sectional view of the present application Figure 2 along A-A.

[0023] Figure 4 is another sectional view of the present application Figure 2 along A-A.

[0024] Figure 5 is another plan view of the present application.

[0025] In the figure, 1. patch body, 11. base layer, 12. heat conduction layer, 13. glue layer one, 14. antioxidant layer, 15. glue layer two, 16. protective layer, 17. insulating layer, 18. glue layer three, 2. positioning groove, 3. magnetic sheet, 4. magnetic film, 5. target object, 6. positioning hole. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0027] Embodiment 1:

[0028] In the present embodiment, as shown in Figures 1-3 the present application proposes a high-thermal-conductivity flexible graphene patch, which comprises a patch body 1, the surface of the patch body is provided with positioning grooves 2, the number of the positioning grooves is determined according to the size of a target object, a magnetic sheet 3 is embedded in the positioning grooves, a magnetic film 4 is arranged below the patch body, the back surface of the magnetic film is provided with back glue, the target object 5 is adhered to the back surface of the magnetic film, and the patch body is connected with the target object through magnetic attraction of the magnetic sheet.

[0029] The patch body comprises a base layer 11, a heat-conducting layer 12 arranged above the base layer, a first adhesive layer 13 arranged between the base layer and the heat-conducting layer, a bottom surface of the first adhesive layer connected to a top surface of the base layer, a top surface of the first adhesive layer connected to a bottom surface of the heat-conducting layer, an oxidation-resistant layer 14 arranged above the heat-conducting layer, a second adhesive layer 15 arranged between the heat-conducting layer and the oxidation-resistant layer, a bottom surface of the second adhesive layer connected to a top surface of the heat-conducting layer, a top surface of the second adhesive layer connected to a bottom surface of the oxidation-resistant layer, a protective layer 16 arranged above the oxidation-resistant layer, a top surface of the oxidation-resistant layer connected to a bottom surface of the protective layer, an insulating layer 17 arranged below the base layer, and a bottom surface of the base layer connected to a top surface of the insulating layer.

[0030] In the embodiment, the magnetic film adhering position corresponds to the positioning groove, so that the magnet and the magnetic film have a small magnetic force, and the patch body is prevented from falling off.

[0031] In the embodiment, the size of the magnetic film is 1.5-2 times the size of the positioning groove, so that the positioning accuracy is not too high due to a small size, and the heat dissipation effect of the patch body is not affected due to a large size.

[0032] In the embodiment, the size of the magnetic film is the same as the size of the positioning groove.

[0033] In the embodiment, the depth of the magnetic film is the same as the depth of the positioning groove, and the outer surface of the magnetic film is flush with the outer surface of the oxidation-resistant layer, so that the magnetic film does not protrude and affect external installation.

[0034] In the embodiment, the base layer is made of a polymer material, such as polyimide and polyethylene terephthalate, which has excellent flexibility and certain high-temperature resistance. The base layer is designed as a thin sheet, and the thickness can be adjusted according to application requirements, generally between several dozen microns and several hundred microns. The base layer provides the patch body with a basic shape and support.

[0035] In the embodiment, the heat-conducting layer is a graphene layer, which can be a multi-layer graphene or a composite material formed by graphene and a polymer, metal nanoparticles, etc. The heat-conducting layer is responsible for heat transfer, uses the high thermal conductivity of graphene to achieve rapid heat conduction, and maintains good flexibility at the same time.

[0036] In the embodiment, the oxidation-resistant layer is an aluminum oxide layer, or an organic antioxidant coating. The oxidation-resistant layer can prevent the heat-conducting layer from being oxidized in the air, thereby affecting the heat-conducting performance.

[0037] In the embodiment, the insulating layer and the protective layer respectively protect the base layer and the oxidation-resistant layer. The insulating layer and the protective layer can be electrostatic adsorption type protective films or low-adhesion silicone protective films, which can avoid dust contamination and affect the use effect. When the patch body is used, the insulating layer and the protective layer on the front and back surfaces of the patch body are respectively removed.

[0038] Further in the embodiment, the first adhesive layer and the second adhesive layer are both thermal conductive adhesive, and the thermal conductive adhesive is thermal conductive double-sided adhesive or epoxy resin thermal conductive adhesive, and the thermal conductive adhesive can simultaneously have the functions of adhesion and thermal conduction.

[0039] The use process of the high-thermal-conductivity flexible graphene patch is as follows: cleaning the surface of the target object, marking the target object according to the position of the patch body positioning groove, tearing off the back adhesive of the back of the magnetic film, attaching the back of the magnetic film to the target object according to the marked position, tearing off the protective film on the surface of the magnetic film, tearing off the insulating film on the back of the patch body, covering the patch body on the target object, tearing off the protective film on the front of the patch body, and completing positioning by installing the magnetic sheet in the positioning groove.

[0040] In the example, the patch body is connected with the target object by magnetic attraction installation connection in the embodiment 1, the patch body is simple to disassemble and convenient for secondary use, and the target object is not damaged when disassembling.

[0041] Embodiment 2:

[0042] In the embodiment, on the basis of the embodiment 1, if the magnetic sheet does not need to be installed with a component, the positioning groove is not needed to be arranged, and the magnetic sheet only needs to be arranged at the corresponding position of the target object to which the magnetic film is attached. When the target object has magnetism or a magnetic component, the magnetic film does not need to be attached, and the patch body can be directly connected with the target object by the magnetic sheet.

[0043] Embodiment 3:

[0044] In the embodiment, as shown in the figure, Figure 4 The utility model discloses a high-thermal-conductivity flexible graphene patch, which comprises a patch body 1, the patch body 1 comprises a base layer 11, a thermal conductive layer 12 is arranged above the base layer 11, the base layer and the thermal conductive layer are adhered through a first adhesive layer 13, the bottom surface of the first adhesive layer is connected with the top surface of the base layer, the top surface of the first adhesive layer is connected with the bottom surface of the thermal conductive layer, an oxidation-resistant layer 14 is arranged above the thermal conductive layer, the thermal conductive layer and the oxidation-resistant layer are adhered through a second adhesive layer 15, the bottom surface of the second adhesive layer is connected with the top surface of the thermal conductive layer, the top surface of the second adhesive layer is connected with the bottom surface of the oxidation-resistant layer, a protective layer 16 is arranged above the oxidation-resistant layer, the top surface of the oxidation-resistant layer is connected with the bottom surface of the protective layer, an insulating layer 17 is arranged below the base layer, the top surface of a third adhesive layer 18 is connected with the bottom surface of the base layer, and the bottom surface of the third adhesive layer is connected with the top surface of the insulating layer.

[0045] Further in the embodiment, the first adhesive layer, the second adhesive layer and the third adhesive layer are all thermal conductive adhesive, and the thermal conductive adhesive is thermal conductive double-sided adhesive or epoxy resin thermal conductive adhesive, and the thermal conductive adhesive can simultaneously have the functions of adhesion and thermal conduction.

[0046] The insulating layer and the protective layer correspond to the adhesive layer three and the oxidation-resistant layer respectively for protection, the protective layer can be an electrostatic adsorption type protective film or a low-adhesion silica gel protective film, dust is avoided from being attached to affect the use effect.

[0047] In the present example, the patch body is used for heat dissipation of the target object by using the traditional adhesive installation connection in example 3, without considering secondary use and recycling.

[0048] Example 4:

[0049] In the present example, as shown in Figure 5 The utility model discloses a high-thermal-conductivity flexible graphene patch, including patch body 1, the surface of patch body is equipped with positioning hole 6, the surface of target object is equipped with mounting hole, and the bolt passes through positioning hole and mounting hole in proper order and installs patch body on the surface of target object.

[0050] The patch body includes a base layer 11, a thermal conductive layer 12 arranged above the base layer, the base layer and the thermal conductive layer are adhered by an adhesive layer one 13, the bottom surface of the adhesive layer one is connected with the top surface of the base layer, the top surface of the adhesive layer one is connected with the bottom surface of the thermal conductive layer, an oxidation-resistant layer 14 is arranged above the thermal conductive layer, the thermal conductive layer and the oxidation-resistant layer are adhered by an adhesive layer two 15, the bottom surface of the adhesive layer two is connected with the top surface of the thermal conductive layer, the top surface of the adhesive layer two is connected with the bottom surface of the oxidation-resistant layer, a protective layer 16 is arranged above the oxidation-resistant layer, the top surface of the oxidation-resistant layer is connected with the bottom surface of the protective layer, an insulating layer 17 is arranged below the base layer, and the bottom surface of the base layer is connected with the top surface of the insulating layer.

[0051] The insulating layer and the protective layer correspond to the base layer and the oxidation-resistant layer respectively for protection, the protective layer can be an electrostatic adsorption type protective film or a low-adhesion silica gel protective film, dust is avoided from being attached to affect the use effect.

[0052] In the description of the utility model, it is necessary to explain that when the terms of indicating the orientation or position relationship such as "upper", "lower", "inner", "outer", "left", "right" and the like appear, it should be understood as the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship of the utility model product when it is usually placed, or the orientation or position relationship commonly understood by the person skilled in the art, and it is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, when the terms such as "first", "second" and the like appear, they are only used for distinguishing the description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, it is also necessary to explain that unless otherwise explicitly specified and limited, the terms such as "mounting", "setting", "connecting" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A high thermal conductive flexible graphene patch comprising a patch body, characterized in that, The surface of the patch body is provided with a positioning groove, the magnetic sheet is embedded in the positioning groove, the lower part of the patch body is provided with a magnetic film, the back surface of the magnetic film is provided with a back adhesive, the target object is adhered to the back surface of the magnetic film, and the patch body is connected with the target object through magnetic attraction; The patch body comprises a base layer, the upper part of the base layer is provided with a heat-conducting layer, the base layer and the heat-conducting layer are connected through a first adhesive layer, the bottom surface of the first adhesive layer is connected with the top surface of the base layer, the top surface of the first adhesive layer is connected with the bottom surface of the heat-conducting layer, the upper part of the heat-conducting layer is provided with an oxidation-resistant layer, the heat-conducting layer and the oxidation-resistant layer are connected through a second adhesive layer, the bottom surface of the second adhesive layer is connected with the top surface of the heat-conducting layer, the top surface of the second adhesive layer is connected with the bottom surface of the oxidation-resistant layer, the upper part of the oxidation-resistant layer is provided with a protective layer, the top surface of the oxidation-resistant layer is connected with the bottom surface of the protective layer, the lower part of the base layer is provided with an insulating layer, and the bottom surface of the base layer is connected with the top surface of the insulating layer.

2. The high thermal conductive flexible graphene patch of claim 1, wherein, The adhesive position of the magnetic film corresponds to the positioning groove, so that the magnetism between the magnet and the magnetic film is avoided to be small, and the patch body is prevented from falling off.

3. The high thermal conductive flexible graphene patch of claim 1, wherein, The size of the magnetic sheet is consistent with the size of the positioning groove.

4. The high thermal conductive flexible graphene patch of claim 1, wherein, The base layer is made of a polymer material, and the base layer provides a basic shape and support for the patch body.

5. The high thermal conductive flexible graphene patch of claim 1, wherein, The heat-conducting layer is a graphene layer, and the heat-conducting layer is responsible for heat transfer.

6. The high thermal conductive flexible graphene patch of claim 1, wherein, The oxidation-resistant layer is an aluminum oxide layer, and the oxidation-resistant layer can avoid the oxidation of the heat-conducting layer, so as to affect the heat-conducting performance.

7. The high-thermal-conductivity flexible graphene patch of claim 1, wherein, The insulating layer and the protective layer respectively protect the base layer and the oxidation-resistant layer, so as to avoid dust from affecting the use effect.

8. The high thermal conductive flexible graphene patch of claim 1, wherein, The first adhesive layer and the second adhesive layer are both heat-conducting adhesives, and the heat-conducting adhesives can simultaneously have the functions of adhesion and heat conduction.

Images