Lightweight high-thermal-conductivity assembly and stacking die cutting method thereof

Abstract

The invention provides a lightweight high-thermal-conductivity assembly and a stacking and die cutting method thereof. The lightweight high-thermal-conductivity assembly comprises a first coating body, a graphite film stacking body and a second coating body, wherein the first coating body and the second coating body are located on the two sides of the graphite film stacking body respectively; a step is arranged on the periphery of the second wrapping body, and the first wrapping body and the second wrapping body form a cavity for containing the graphite film stacking body. The light high-heat-conduction assembly and the stacking and die cutting method thereof are used for achieving the technical purposes of conducting heat and protecting internal graphite at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of heat-conducting components, and in particular to a lightweight and highly heat-conducting component and a stacking and die-cutting method thereof. Background Art

[0002] At present, with the acceleration of the operating speed of electronic products, the demand for heat dissipation is becoming more and more stringent; thermal conductive graphite film is widely used in electronic products due to its ultra-high thermal conductivity coefficient; due to the limitation of material thickness, a single layer cannot meet the heat dissipation demand. Currently, multi-layer stacking is mostly used to improve its comprehensive thermal conductivity.

[0003] Thermally conductive graphite film is essentially made of graphite, which lacks inherent strength, so it is protected by a rim. Existing rims are all made of colloid, which has a certain impact on thermal conductivity. How to achieve both thermal conductivity and protection is a technical problem that needs to be solved urgently. Summary of the Invention

[0004] One of the purposes of the present invention is to provide a lightweight and highly thermally conductive component and a stacking die-cutting method thereof, so as to solve the technical problem of balancing thermal conductivity and protecting internal graphite.

[0005] A lightweight and highly thermally conductive component provided by an embodiment of the present invention includes: a first encapsulation body, a graphite film stack body, and a second encapsulation body; wherein, the first encapsulation body and the second encapsulation body are respectively located on both sides of the graphite film stack body; a step is provided on the outer periphery of the second encapsulation body, and the first encapsulation body and the second encapsulation body form a cavity for accommodating the graphite film stack body.

[0006] Preferably, the thickness of the first coating is any one between 9 μm and 1 mm; the thickness of the second coating is any one between 9 μm and 1 mm; the material of the first coating includes: any one or a combination of copper, stainless steel and ceramic; the thickness of the graphite film stack is any one between 0.15 mm and 2 mm.

[0007] Preferably, the first encapsulating body and the graphite film stack are bonded to each other, and the second encapsulating body and the graphite film stack are bonded to each other.

[0008] Preferably, a recessed platform is provided in the middle of one side of the second encapsulation away from the graphite stack; the stacking direction of the graphite stack at the position corresponding to the recessed platform is perpendicular to the second encapsulation; the stacking direction of the graphite stack at the outer periphery of the corresponding recessed platform is parallel to the second encapsulation.

[0009] Preferably, a plurality of protrusions are provided on the step, and a depression cooperating with the protrusions is provided at the edge of the first encapsulation body on the side away from the graphite film stack; after the first encapsulation body and the second encapsulation body envelop the graphite film stack, the protrusions are folded over and placed into the depressions and are flush with the surface of the first encapsulation body.

[0010] Preferably, a protrusion is provided on the side of the step away from the graphite film stack.

[0011] Preferably, a plurality of L-shaped protrusions are provided on the side of the second covering body away from the graphite film stack, and a positioning and installation area is formed between the plurality of L-shaped protrusions; a plurality of straight-line protrusions are provided between the L-shaped protrusions and the straight-line protrusions are located at the edge of the positioning and installation area.

[0012] The present invention also provides a stacking die-cutting method for producing any of the above-mentioned lightweight and highly thermally conductive components, comprising:

[0013] Cutting the first raw material by a first die-cutting mechanism to obtain a first coating body;

[0014] Cutting the second raw material by a second die-cutting mechanism to obtain a second coating body;

[0015] Cutting the third raw material by a third die-cutting mechanism to obtain a graphite film stack;

[0016] The first clad body, the second clad body and the graphite stack are transported to a pressing mechanism for pressing.

[0017] Preferably, the first die-cutting mechanism comprises: a first upper template and a first lower template; the first upper template is provided with a cutter for cutting the first raw material, and the first lower template is provided with a hollow groove at a position corresponding to the cutter; the end face shape of the cutter is adapted to the shape of the first cladding body;

[0018] The second die-cutting mechanism includes: a raw material pre-cutting unit, a second upper template and a second lower template; the raw material pre-cutting unit pre-cuts the first raw material into pre-processed parts, and the second upper template and the second lower template are closed to leave a cavity corresponding to the second covering body.

[0019] Preferably, the pressing mechanism includes: a pressing platform, a pressing head and a dispensing robot arm; the pressing platform is provided with a groove adapted to the second cladding body, and the dispensing robot arm is used to perform bonding and dispensing operations between the second cladding body and the graphite stack, and between the graphite stack and the first cladding body.

[0020] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0021] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 is a schematic diagram of a lightweight and highly thermally conductive component according to an embodiment of the present invention;

[0024] Figure 2 Schematic diagram of a stacking die-cutting method according to an embodiment of the present invention;

[0025] Figure 3 A schematic diagram of the bottom of the second enclosure of another lightweight and highly thermally conductive component according to an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of the surface of a first cladding body of another lightweight and highly thermally conductive component according to an embodiment of the present invention;

[0027] Figure 5 A schematic diagram of a side view of a step of another lightweight and highly thermally conductive component according to an embodiment of the present invention;

[0028] Figure 6 Schematic diagram of the bottom of the second enclosure of another lightweight and highly thermally conductive component in an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0030] Example 1

[0031] The embodiment of the present invention provides a lightweight and highly thermally conductive component, such as Figure 1 As shown, it includes: a first encapsulation body 1, a graphite film stack body 2 and a second encapsulation body 3; wherein, the first encapsulation body 1 and the second encapsulation body 3 are respectively located on both sides of the graphite film stack body 2; a step is provided on the outer periphery of the second encapsulation body 3, and the first encapsulation body 1 and the second encapsulation body 3 form a cavity for accommodating the graphite film stack body 2.

[0032] The thickness of the first coating 1 is in the range of 9 μm to 1 mm.

[0033] The thickness of the second coating 3 is anywhere from 9 μm to 1 mm.

[0034] The thickness of the graphite film stack 2 is in the range of 0.15 mm to 2 mm.

[0035] The first cladding body and the graphite film stack are bonded together, and the second cladding body and the graphite film stack are bonded together; double-sided tape can be used for bonding, and the positions of the double-sided tapes for bonding the first cladding body and the graphite, and the second cladding body and the graphite film stack are staggered;

[0036] The material of the first cladding body includes: any one of copper, stainless steel and ceramic or a combination thereof; for example, copper foil, a stainless steel sheet with good rigidity, and a ceramic sheet with low density may be used; the material may be silicon carbide, aluminum nitride, silicon nitride, etc., or a combination of these materials;

[0037] In this embodiment, the whole formed by the first encapsulation body, the graphite film stack body and the second encapsulation body is used as a lightweight and highly thermally conductive component. The first encapsulation body and the second encapsulation body encapsulate the graphite film stack body. Since copper has excellent thermal conductivity and impact resistance, it can take into account the functions of thermal conductivity and protection of the internal graphite.

[0038] Corresponding to the above-mentioned lightweight and highly thermally conductive components, this embodiment further provides a stacking die-cutting method, which is applied to produce any of the above-mentioned lightweight and highly thermally conductive components, including:

[0039] Step 1: cutting the first raw material by a first die-cutting mechanism to obtain a first coating body;

[0040] Step 2: cutting the second raw material by a second die-cutting mechanism to obtain a second coating body;

[0041] Step 3: cutting the third raw material by a third die-cutting mechanism to obtain a graphite film stack;

[0042] Step 4: transport the first cladding body, the second cladding body and the graphite stack to a pressing mechanism for pressing.

[0043] The first die-cutting mechanism includes: a first upper template and a first lower template; a cutter for cutting the first raw material is provided on the first upper template, and a hollow groove is provided on the first lower template at the position corresponding to the cutter; the end face shape of the cutter is adapted to the shape of the first package; the first die-cutting mechanism cuts the coil to obtain the first package; the first upper template moves up and down under the action of the oil pressure mechanism and engages with the first lower template. During engagement, the cutter of the first upper template cooperates with the hollow groove to cut the first package from the coil;

[0044] The second die-cutting mechanism includes: a raw material pre-cutting unit, a second upper die plate, and a second lower die plate. The raw material pre-cutting unit pre-cuts the first raw material into a pre-processed part, and the second upper die plate and the second lower die plate are closed to leave a cavity corresponding to the second enveloping body. The second die-cutting mechanism cuts and punches the coil to form the second enveloping body. The second enveloping body can be produced in at least two steps. The first step is to cut the pre-processed part from the coil, and then to form the second enveloping body by punching the second upper die plate and the second lower die plate of the stamping die.

[0045] The third die-cutting mechanism is similar to the first die-cutting mechanism, and both directly cut objects of a specific size from the material to form a graphite film stack; the third raw material is formed by stacking graphite films layer by layer;

[0046] The lamination mechanism includes a lamination platform, a lamination head, and a dispensing robot arm. The lamination platform is configured with a groove adapted for the second cladding body. The dispensing robot arm is used to perform adhesive dispensing operations between the second cladding body and the graphite stack, and between the graphite stack and the first cladding body. The second cladding body is placed in the groove, and the dispensing robot arm performs an initial dispensing operation. The graphite film stack is then placed in the second cladding body and a second dispensing operation is performed. The first cladding body is then placed on top and lamination is performed. The lamination head and the lamination platform engage to press the objects in the groove and maintain the pressure for a certain period of time (any time between 1 and 10 seconds) to ensure that the components are fully adhered.

[0047] Example 2

[0048] An embodiment of the present invention provides a lightweight and highly thermally conductive component, comprising: a first encapsulation body, a graphite film stack body, and a second encapsulation body; wherein the first encapsulation body and the second encapsulation body are respectively located on both sides of the graphite film stack body; a step is provided on the outer periphery of the second encapsulation body, and the first encapsulation body and the second encapsulation body form a cavity for accommodating the graphite film stack body.

[0049] like Figure 2 As shown, a recessed platform 11 is provided in the middle of one side of the second encapsulation body 3 away from the graphite stacking body 2; the stacking direction of the graphite stacking body 2 at the position corresponding to the recessed platform 11 is perpendicular to the second encapsulation body 3; the stacking direction of the graphite stacking body 2 at the outer periphery of the corresponding recessed platform 11 is parallel to the second encapsulation body 3.

[0050] The lightweight and highly thermally conductive component formed in this embodiment places the component that needs to be thermally treated into the recessed platform. The stacking direction of the graphite stack at the position corresponding to the recessed platform should be perpendicular to the second cladding, that is, it has a better thermal conductivity effect from the contact position of the groove platform; the stacking direction of the graphite stack at the outer periphery of the corresponding recessed platform is parallel to the second cladding, and the side contact portion corresponding to the component that needs to be thermally treated can also dissipate heat in the horizontal direction; and the recessed platform can serve the function of fixing the component to the component that needs to be thermally treated.

[0051] Corresponding to the above-mentioned lightweight and highly thermally conductive components, this embodiment further provides a stacking die-cutting method, which is applied to produce any of the above-mentioned lightweight and highly thermally conductive components, including:

[0052] Step 1: cutting the first raw material by a first die-cutting mechanism to obtain a first coating body;

[0053] Step 2: cutting the second raw material by a second die-cutting mechanism to obtain a second coating body;

[0054] Step 3: cutting the third raw material by a third die-cutting mechanism to obtain a graphite film stack;

[0055] Step 4: transport the first cladding body, the second cladding body and the graphite stack to a pressing mechanism for pressing.

[0056] The first die-cutting mechanism includes: a first upper template and a first lower template; a cutter for cutting the first raw material is provided on the first upper template, and a hollow groove is provided on the first lower template at the position corresponding to the cutter; the end face shape of the cutter is adapted to the shape of the first package; the first die-cutting mechanism cuts the coil to obtain the first package; the first upper template moves up and down under the action of the oil pressure mechanism and engages with the first lower template. During engagement, the cutter of the first upper template cooperates with the hollow groove to cut the first package from the coil;

[0057] The second die-cutting mechanism includes: a raw material pre-cutting unit, a second upper template, and a second lower template. The raw material pre-cutting unit pre-cuts the first raw material into a pre-processed piece, and after the second upper template and the second lower template are closed, a cavity corresponding to the second covering body remains. The second die-cutting mechanism cuts and punches the coil to form the second covering body. The production of the second covering body can be divided into at least two steps. The first step is to cut the pre-processed piece from the coil, and then to form the second covering body by punching the second upper template and the second lower template of the stamping die. During the second stamping step, a recessed platform can be directly punched out in the middle of the second covering body.

[0058] The third die-cutting mechanism is similar to the first die-cutting mechanism in that both directly cut objects of a specific size from the material to form a graphite film stack. The third raw material is formed by stacking graphite films layer by layer. However, in this embodiment, the graphite film stack in the lightweight and highly thermally conductive component is divided into two parts. One part can be directly cut, and the other part is cut into long strips and placed end-to-end on the periphery of the first part.

[0059] The lamination mechanism includes a lamination platform, a lamination head, and a dispensing robot arm. The lamination platform is configured with a groove adapted for the second cladding body. The dispensing robot arm is used to perform adhesive dispensing operations between the second cladding body and the graphite stack, and between the graphite stack and the first cladding body. The second cladding body is placed in the groove, and the dispensing robot arm performs an initial dispensing operation. The graphite film stack is then placed in the second cladding body and a second dispensing operation is performed. The first cladding body is then placed on top and lamination is performed. The lamination head and the lamination platform engage to press the objects in the groove and maintain the pressure for a certain period of time (any time between 1 and 10 seconds) to ensure that the components are fully adhered.

[0060] Example 3

[0061] An embodiment of the present invention provides a lightweight and highly thermally conductive component, comprising: a first encapsulation body, a graphite film stack body, and a second encapsulation body; wherein the first encapsulation body and the second encapsulation body are respectively located on both sides of the graphite film stack body; a step is provided on the outer periphery of the second encapsulation body, and the first encapsulation body and the second encapsulation body form a cavity for accommodating the graphite film stack body.

[0062] A plurality of protrusions are provided on the step, and a recess matched with the protrusions is provided at an edge of the first encapsulating body on a side away from the graphite film stack.

[0063] After the first and second encapsulating bodies encapsulate the graphite film stack, the protrusions are folded over and placed into the recesses to be flush with the surface of the first encapsulating body. Figure 3 The effect diagram after folding, the protrusion 15 can also play a role in fixing the first encapsulating body 1.

[0064] The assembly of this embodiment is integrated due to the coordination of the protrusions and the recesses, making it less likely to fall apart, thereby ensuring the durability of the assembly.

[0065] Corresponding to the above-mentioned lightweight and highly thermally conductive components, this embodiment further provides a stacking die-cutting method, which is applied to produce any of the above-mentioned lightweight and highly thermally conductive components, including:

[0066] Step 1: cutting the first raw material by a first die-cutting mechanism to obtain a first coating body;

[0067] Step 2: cutting the second raw material by a second die-cutting mechanism to obtain a second coating body;

[0068] Step 3: cutting the third raw material by a third die-cutting mechanism to obtain a graphite film stack;

[0069] Step 4: transport the first cladding body, the second cladding body and the graphite stack to a pressing mechanism for pressing.

[0070] The first die-cutting mechanism includes: a first upper template and a first lower template; a cutter for cutting the first raw material is provided on the first upper template, and a hollow groove is provided on the first lower template at the position corresponding to the cutter; the end face shape of the cutter is adapted to the shape of the first package; the first die-cutting mechanism cuts the coil to obtain the first package; the first upper template moves up and down under the action of the oil pressure mechanism and engages with the first lower template. During engagement, the cutter of the first upper template cooperates with the hollow groove to cut the first package from the coil;

[0071] The second die-cutting mechanism includes: a raw material pre-cutting unit, a second upper template, and a second lower template; the raw material pre-cutting unit pre-cuts the first raw material into a pre-processed part, and after the second upper template and the second lower template are closed, a cavity corresponding to the second encapsulation body is left. The second die-cutting mechanism cuts and punches the coil to form the second encapsulation body; the production of the second encapsulation body can be divided into at least two steps, the first step is to cut the pre-processed part from the coil, and then form the second encapsulation body by punching the second upper template and the second lower template of the stamping die; during the first cutting step, an arc-shaped protrusion is reserved on the pre-processed part so that a protrusion can be formed on the step during the second punching step;

[0072] The third die-cutting mechanism is similar to the first die-cutting mechanism, and both directly cut objects of a specific size from the material to form a graphite film stack; the third raw material is formed by stacking graphite films layer by layer;

[0073] Among them, the pressing mechanism includes: a pressing platform and a pressing head; according to the situation of this embodiment, it is configured into two groups to realize two-stage pressing. In the first stage, there is a group of pressing platforms and pressing heads, and there is a flat push slider on the pressing platform; the pressing platform is provided with a groove adapted to the second encapsulation, the second encapsulation is placed in the groove, and then the graphite film stack is placed in the second encapsulation, and the pressing head is joined with the first encapsulation after the first encapsulation is placed. In the first stage, the cross-sectional size of the pressing head is smaller than the surface size of the first encapsulation; this makes it convenient for the flat push slider to push the protrusion flat from the outside to fit the surface of the first encapsulation to achieve folding; then the second stage of pressing is performed, that is, the objects after the first group of pressing are placed in the groove of the pressing platform of the second group, and the second group of pressing heads and the pressing platform are joined to press the objects in the groove and maintain a certain time (any time between 1 and 10 seconds) to make each component fully fit; the cross-sectional size of the second group of pressing heads is greater than or equal to the surface size of the first encapsulation.

[0074] Example 4

[0075] An embodiment of the present invention provides a lightweight and highly thermally conductive component, comprising: a first encapsulation body, a graphite film stack body, and a second encapsulation body; wherein the first encapsulation body and the second encapsulation body are respectively located on both sides of the graphite film stack body; a step is provided on the outer periphery of the second encapsulation body, and the first encapsulation body and the second encapsulation body form a cavity for accommodating the graphite film stack body.

[0076] like Figure 4 As shown, a protrusion 14 is provided on the side of the step 10 away from the graphite film stack 2 .

[0077] This embodiment configures protrusions on the outside of the step, which can, on the one hand, play a positioning role during installation in some special environments, and on the other hand, make it easier for people to grab the edge during installation.

[0078] Corresponding to the above-mentioned lightweight and highly thermally conductive components, this embodiment further provides a stacking die-cutting method, which is applied to produce any of the above-mentioned lightweight and highly thermally conductive components, including:

[0079] Step 1: cutting the first raw material by a first die-cutting mechanism to obtain a first coating body;

[0080] Step 2: cutting the second raw material by a second die-cutting mechanism to obtain a second coating body;

[0081] Step 3: cutting the third raw material by a third die-cutting mechanism to obtain a graphite film stack;

[0082] Step 4: transport the first cladding body, the second cladding body and the graphite stack to a pressing mechanism for pressing.

[0083] The first die-cutting mechanism includes: a first upper template and a first lower template; a cutter for cutting the first raw material is provided on the first upper template, and a hollow groove is provided on the first lower template at the position corresponding to the cutter; the end face shape of the cutter is adapted to the shape of the first package; the first die-cutting mechanism cuts the coil to obtain the first package; the first upper template moves up and down under the action of the oil pressure mechanism and engages with the first lower template. During engagement, the cutter of the first upper template cooperates with the hollow groove to cut the first package from the coil;

[0084] The second die-cutting mechanism includes: a raw material pre-cutting unit, a second upper template, and a second lower template. The raw material pre-cutting unit pre-cuts the first raw material into a pre-processed piece, and after the second upper template and the second lower template are closed, a cavity corresponding to the second encapsulation is left. The second die-cutting mechanism cuts and punches the coil to form the second encapsulation. The production of the second encapsulation can be divided into at least two steps. The first step is to cut the pre-processed piece from the coil, and then to form the second encapsulation by punching the second upper template and the second lower template of the stamping die. During the stamping process, grooves are provided on the side of the second encapsulation of the stamping die at corresponding positions to facilitate the formation of convex points by punching.

[0085] The third die-cutting mechanism is similar to the first die-cutting mechanism, and both directly cut objects of a specific size from the material to form a graphite film stack; the third raw material is formed by stacking graphite films layer by layer;

[0086] The lamination mechanism includes a lamination platform, a lamination head, and a dispensing robot arm. The lamination platform is configured with a groove adapted for the second cladding body. The dispensing robot arm is used to perform adhesive dispensing operations between the second cladding body and the graphite stack, and between the graphite stack and the first cladding body. The second cladding body is placed in the groove, and the dispensing robot arm performs an initial dispensing operation. The graphite film stack is then placed in the second cladding body and a second dispensing operation is performed. The first cladding body is then placed on top and lamination is performed. The lamination head and the lamination platform engage to press the objects in the groove and maintain the pressure for a certain period of time (any time between 1 and 10 seconds) to ensure that the components are fully adhered.

[0087] Example 5

[0088] An embodiment of the present invention provides a lightweight and highly thermally conductive component, comprising: a first encapsulation body, a graphite film stack body, and a second encapsulation body; wherein the first encapsulation body and the second encapsulation body are respectively located on both sides of the graphite film stack body; a step is provided on the outer periphery of the second encapsulation body, and the first encapsulation body and the second encapsulation body form a cavity for accommodating the graphite film stack body.

[0089] like Figure 5 As shown, a plurality of L-shaped protrusions 12 are provided on the side of the second encapsulation 3 away from the graphite film stack 2, forming a positioning and mounting area between the plurality of L-shaped protrusions 12. The positioning and mounting area is in contact with the component to be heat-conducted, and the L-shaped protrusions 12 serve to limit the position of the component.

[0090] When the edge of the component that needs to be heat-conducted is long, a plurality of straight protrusions 13 can be provided between the L-shaped protrusions 12, and the straight protrusions 13 are located at the edge of the positioning and mounting area;

[0091] Corresponding to the above-mentioned lightweight and highly thermally conductive components, this embodiment further provides a stacking die-cutting method, which is applied to produce any of the above-mentioned lightweight and highly thermally conductive components, including:

[0092] Step 1: cutting the first raw material by a first die-cutting mechanism to obtain a first coating body;

[0093] Step 2: cutting the second raw material by a second die-cutting mechanism to obtain a second coating body;

[0094] Step 3: cutting the third raw material by a third die-cutting mechanism to obtain a graphite film stack;

[0095] Step 4: transport the first cladding body, the second cladding body and the graphite stack to a pressing mechanism for pressing.

[0096] The first die-cutting mechanism includes: a first upper template and a first lower template; a cutter for cutting the first raw material is provided on the first upper template, and a hollow groove is provided on the first lower template at the position corresponding to the cutter; the end face shape of the cutter is adapted to the shape of the first package; the first die-cutting mechanism cuts the coil to obtain the first package; the first upper template moves up and down under the action of the oil pressure mechanism and engages with the first lower template. During engagement, the cutter of the first upper template cooperates with the hollow groove to cut the first package from the coil;

[0097] The second die-cutting mechanism includes: a raw material pre-cutting unit, a second upper template, and a second lower template; the raw material pre-cutting unit pre-cuts the first raw material into a pre-processed part, and after the second upper template and the second lower template are closed, a cavity corresponding to the second encapsulation body is left. The second die-cutting mechanism cuts and punches the coil to form the second encapsulation body; the production of the second encapsulation body can be divided into at least two steps, the first step is to cut the pre-processed part from the coil, and then form the second encapsulation body by punching the second upper template and the second lower template of the stamping die; during stamping, an L-shaped groove and / or a straight groove are provided at the corresponding position on the bottom surface of the second encapsulation body of the stamping die, so as to form an L-shaped protrusion or a straight protrusion by punching;

[0098] The third die-cutting mechanism is similar to the first die-cutting mechanism, and both directly cut objects of a specific size from the material to form a graphite film stack; the third raw material is formed by stacking graphite films layer by layer;

[0099] The lamination mechanism includes a lamination platform, a lamination head, and a dispensing robot arm. The lamination platform is configured with a groove adapted for the second cladding body. The dispensing robot arm is used to perform adhesive dispensing operations between the second cladding body and the graphite stack, and between the graphite stack and the first cladding body. The second cladding body is placed in the groove, and the dispensing robot arm performs an initial dispensing operation. The graphite film stack is then placed in the second cladding body and a second dispensing operation is performed. The first cladding body is then placed on top and lamination is performed. The lamination head and the lamination platform engage to press the objects in the groove and maintain the pressure for a certain period of time (any time between 1 and 10 seconds) to ensure that the components are fully adhered.

[0100] During the pressing process, the pressing mechanism dispenses glue between the graphite stack and the first and second cladding bodies respectively, and the two are bonded by the colloid. The colloid has a slight effect on the thermal conductivity of the finished component. In order to reduce the slight effect to a negligible level, it is necessary to control the glue dispensing according to the actual use of the lightweight and high thermal conductivity component. The control of the glue dispensing robot arm is achieved by configuring a controller with the glue dispensing robot arm. The controller performs the following operations: obtaining an image captured by an image acquisition module configured at the end of the glue dispensing robot arm; analyzing the image to determine the unique identification number of the component to be produced; feeding back the unique identification number to the server, receiving the glue dispensing control set analyzed by the server according to the use scenario of the component corresponding to the unique identification number, and controlling the glue dispensing robot arm;

[0101] The specific steps of the dispensing control set analyzed by the server based on the usage scenario of the component corresponding to the unique identification number are as follows:

[0102] Analyze the contact surface between the heat source and the component in the usage scenario, and use the analysis results to determine the dispensing position and amount of glue; then, construct a dispensing control set based on the determined dispensing position and amount of glue;

[0103] The specific analysis steps include: determining the minimum external frame based on the planar area formed inside the component after the minimum dispensing amount of the dispensing robot arm is pressed by the pressing mechanism; determining the number of units required for dispensing based on the parameters (size, thickness, mass, etc.) of the first cladding body, the second cladding body and the graphite stack, the area of the minimum external frame and the preset unit number comparison table; using the size of the minimum external frame as the minimum unit of finite element segmentation, performing finite element segmentation on one side of the corresponding contact surface on the component to form a first finite element unit, and correspondingly segmenting the side of the corresponding contact surface on the heat source to obtain a second finite element unit; using the first finite element unit that does not have a corresponding second finite element unit as the first reference unit;

[0104] When the number of first reference units is greater than or equal to the number of units requiring glue dispensing, the units requiring glue dispensing are determined from the first reference units; when the number of first reference units is less than the number of units requiring glue dispensing, the heating parameters (temperature, temperature change rate, etc.) corresponding to each second finite element unit are obtained, and each second finite element unit is screened based on the heating parameters (the number of screened second finite element units is the difference between the number of units requiring glue dispensing and the number of first finite element units), and the first finite element unit corresponding to the screened second finite element unit is used as the second reference unit; the first reference unit and the second reference unit are used as the units requiring glue dispensing;

[0105] The units that require glue dispensing as analyzed above are mapped to the contact surfaces of all locations in the assembly that require glue dispensing. For this application, there are two surfaces for glue dispensing, which are the two surfaces of the graphite stack. During lamination, the glue dispensing positions on the two surfaces should be staggered as much as possible. This way, from the perspective of heat transfer, only one layer of glue is passed through, which can maximize thermal conductivity and reduce the impact of the glue on thermal conductivity. The glue dispensing position and amount are determined based on the analysis results, specifically:

[0106] When the distribution of units that need to be glued is located in the same closed area, the units that need to be glued are divided into preset equal parts; the divided areas are staggered to correspond to two surfaces of the graphite stack (that is, one divided area is on one surface of the graphite stack, and its adjacent wind-cut area is on the other surface of the graphite stack), and the position of the center of each divided area corresponding to the graphite stack is used as the glue dispensing position, and the glue dispensing amount is determined according to the number of units that need to be glued in the divided area.

[0107] When the distribution of the units that need to be glued is to form multiple closed areas, the closed areas are numbered and grouped to obtain multiple group sets; the optimal group set is obtained based on the difference in the number of units between two groups in the group set and the relative distance; the two groups in the optimal group set correspond to the two surfaces of the graphite stack respectively, and the position of the center of each closed area corresponding to the graphite stack is used as the glue dispensing position, and the glue dispensing amount is determined based on the number of units that need to be glued in the closed area; wherein, the screening is performed based on the evaluation value of the group set, and the group set with the largest evaluation value is used as the optimal group set; wherein, the evaluation steps are as follows: according to The first evaluation value is determined based on the difference in the number of data units and the preset first evaluation value determination table (in the first evaluation value determination table, the smaller the difference, the larger the evaluation value); based on the extraction of each closed area in any one of the two groups, the minimum value of the shortest distance between the extracted closed area and the closed area in the other group is calculated; then the average value and variance of the calculated minimum value are queried according to the average value and variance, and the preset second evaluation value determination table is queried (in the second evaluation value determination standard, the larger the average value, the larger the second evaluation value; the smaller the variance, the larger the second evaluation value) to determine the second evaluation value; the sum of the first evaluation value and the second evaluation value is used as the final evaluation value.

[0108] During the analysis, the heating parameters corresponding to each second finite element unit are obtained. Specifically, a sensor array arranged in accordance with the arrangement of the finite element units can be configured to detect multiple heating sources, and a statistical analysis of the detected data is performed to obtain multiple groups of heating parameters, and a group of heating parameters corresponds to a dispensing control set; after the components are produced according to the dispensing control set, the components are marked to distinguish between components obtained from different dispensing control sets; when the components are installed, the heating elements are detected according to the sensor array, and the corresponding components are selected according to the detection results; the detection is to obtain data between the start of operation of the heating source and a preset time threshold, and then the heating parameters are calculated.

[0109] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A lightweight and highly thermally conductive component, characterized in that: It includes: a first encapsulation body, a graphite film stack body and a second encapsulation body; wherein, the first encapsulation body and the second encapsulation body are respectively located on both sides of the graphite film stack body; a step is provided on the outer periphery of the second encapsulation body, and the first encapsulation body and the second encapsulation body form a cavity for accommodating the graphite film stack body.

2. The lightweight and highly thermally conductive component according to claim 1, wherein: The thickness of the first coating is any one from 9μm to 1mm; the thickness of the second coating is any one from 9μm to 1mm; the material of the first coating includes: any one or a combination of copper, stainless steel and ceramic; the thickness of the graphite film stack is any one from 0.15mm to 2mm.

3. The lightweight and highly thermally conductive component according to claim 1, wherein: The first covering body and the graphite film stack are bonded together, as are the second covering body and the graphite film stack.

4. The lightweight and highly thermally conductive component according to claim 1, wherein: A recessed platform is provided in the middle of one side of the second cladding away from the graphite stacking body; the stacking direction of the graphite stacking body at the position corresponding to the recessed platform is perpendicular to the second cladding body; the stacking direction of the graphite stacking body at the periphery of the corresponding recessed platform is parallel to the second cladding body.

5. The lightweight and highly thermally conductive component according to claim 1, wherein: A plurality of protrusions are provided on the step, and a depression cooperating with the protrusions is provided at the edge of the first encapsulation body on the side away from the graphite film stack; after the first encapsulation body and the second encapsulation body enclose the graphite film stack, the protrusions are folded over and placed into the depressions to be flush with the surface of the first encapsulation body.

6. The lightweight and highly thermally conductive component according to claim 1, wherein: A convex point is provided on a side of the step away from the graphite film stack.

7. The lightweight and highly thermally conductive component according to claim 1, wherein: A plurality of L-shaped protrusions are provided on the side of the second covering body away from the graphite film stack, and a positioning and installation area is formed between the plurality of L-shaped protrusions; a plurality of straight-line protrusions are provided between the L-shaped protrusions and the straight-line protrusions are located at the edge of the positioning and installation area.

8. A stacking die-cutting method for producing a lightweight and highly thermally conductive component according to any one of claims 1 to 7, characterized in that: include: Cutting the first raw material by a first die-cutting mechanism to obtain a first coating body; Cutting the second raw material by a second die-cutting mechanism to obtain a second coating body; Cutting the third raw material by a third die-cutting mechanism to obtain a graphite film stack; The first clad body, the second clad body and the graphite stack are transported to a pressing mechanism for pressing.

9. The stack die-cutting method according to claim 8, wherein: The first die-cutting mechanism includes: a first upper template and a first lower template; the first upper template is provided with a cutter for cutting the first raw material, and the first lower template is provided with a hollow groove at the position corresponding to the cutter; the end face shape of the cutter is adapted to the shape of the first cladding body; The second die-cutting mechanism includes: a raw material pre-cutting unit, a second upper template and a second lower template; the raw material pre-cutting unit pre-cuts the first raw material into pre-processed parts, and the second upper template and the second lower template are closed to leave a cavity corresponding to the second covering body.

10. The stack die-cutting method according to claim 8, wherein: The pressing mechanism includes: a pressing platform, a pressing head and a dispensing robot arm; the pressing platform is equipped with a groove adapted to the second cladding body, and the dispensing robot arm is used to perform bonding and dispensing operations between the second cladding body and the graphite stack, and between the graphite stack and the first cladding body.

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