Aluminum thermal circuit board with three-dimensional structure
By designing aluminum thermal circuit boards with three-dimensional structures, using the superposition and brazing connection of bent channel boards, composite boards and aluminum boards to form a self-organized heat dissipation system, which solves the problem that the existing temperature uniform plate cannot transfer heat on the Z axis. The problem is that efficient heat conduction and heat dissipation are achieved.
Patent Information
- Application Number
- CN202420723214.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-04-10
AI Technical Summary
Existing temperature uniform plates cannot transfer heat to higher places on the Z axis during heat transfer, and increasing thermal conductivity materials will increase thermal resistance and welding difficulty.
A three-dimensional aluminum thermal circuit board is designed to form a self-organized heat dissipation system (SOTS) through the superposition and brazing connection of the bent channel plate, composite plate and aluminum plate to improve the heat conduction and heat dissipation efficiency.
It realizes efficient heat conduction in the Z-axis direction, reduces thermal resistance, improves heat transfer efficiency and thermal conductivity limit, and reduces the difficulty of welding and assembly.
Smart Images
Figure CN222509604U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an aluminum thermal path plate with a three-dimensional structure, which is manufactured in a 3D manner by using a self-organizing heat dissipation system (SOTS) in the form of an aluminum thermal path plate. The aluminum thermal path plate can reduce thermal resistance and bring the effect of heat conduction into play more highly; and belongs to the field of thermal management technology. Background Art
[0002] The common VC (Vapor Chamber) temperature plate is made by welding two copper plates together, leaving a cavity in the middle. After vacuuming by injecting water, a gas-liquid two-phase conversion is formed to achieve heat transfer. This heat transfer method can only achieve heat transfer and heat dissipation in the XY axis direction, and cannot transfer heat to a higher point on the Z axis. Other heat transfer materials such as heat pipes need to be added to transfer the heat to the entire radiator to dissipate the heat.
[0003] The disadvantage of the existing method of superimposing other thermal conductive materials on the temperature averaging plate is that more thermal resistance will be generated between the temperature averaging plate and other thermal conductive materials, reducing the heat transfer efficiency, and more materials will be generated, making it more difficult to weld.
[0004] Therefore, an aluminum heat dissipation plate with a three-dimensional structure is provided, and these materials are made into one body, so as to reduce the intermediate thermal resistance, improve the heat transfer efficiency, and increase the upper limit of the heat dissipation of the heat dissipation plate, while also reducing the difficulty of the final welding assembly. Utility Model Content
[0005] In view of this, the purpose of the utility model is to provide an aluminum heat dissipation plate with a three-dimensional structure, which can reduce the thermal resistance between materials during assembly, more efficiently extract and even out the heat, reduce the number of assembled materials, and reduce the difficulty of welding assembly.
[0006] The above-mentioned purpose of the utility model is achieved by the following technical means:
[0007] An aluminum heat dissipation plate with a three-dimensional structure is characterized in that it includes a bending channel plate, a first composite plate, a middle channel plate, a second composite plate, a bottom channel plate, a third composite plate and an aluminum plate from top to bottom, and is connected together by brazing.
[0008] An aluminum heat dissipation plate with a three-dimensional structure is characterized in that it includes a bottom, a neck and a bending portion, the bottom is connected to the bending portion through the neck; the bending portion is composed of an upper bending channel plate and a lower first composite plate; the neck includes, from top to bottom, a bending channel plate, a first composite plate, an intermediate channel plate, a second composite plate, a bottom channel plate, a third composite plate and an aluminum plate; the bottom is composed of an intermediate channel plate, a second composite plate, a bottom channel plate, a third composite plate and an aluminum plate.
[0009] Preferably, the materials of the first composite plate, the second composite plate and the third composite plate are divided into three layers: the upper layer is the solder AL4104 for vacuum brazing, the middle layer is the aluminum plate AL3003, and the lower layer is the solder AL4104 for vacuum brazing.
[0010] Preferably, the first composite plate, the second composite plate and the third composite plate are formed by stacking three materials, namely, AL4014, AL3003 and AL4014, in a cold pressing manner.
[0011] Preferably, the bottom channel plate is made of AL3003.
[0012] Preferably, the bottom channel plate is distributed with a self-organized heat dissipation system (SOTS).
[0013] Preferably, the first composite plate, the middle channel plate and the second composite plate are provided with holes at the middle positions, which correspond to each other from top to bottom to form interconnected integral holes.
[0014] Preferably, the bent channel plate is distributed with a self-organized heat dissipation system (SOTS).
[0015] Preferably, the intermediate channel plate is distributed with a self-organized heat dissipation system (SOTS).
[0016] Preferably, all the channels inside the bending channel plate, the middle channel plate and the bottom channel plate are connected, and the middle channel plate connects the channels of the bending channel plate and the channels of the bottom channel plate together to form an integral channel connecting all the channels.
[0017] Beneficial effects of the utility model:
[0018] The utility model has a three-dimensional structure of the aluminum heat sink, which is made of a self-organized heat dissipation system (SOTS) to reduce thermal resistance, increase the heat conduction area, maximize the heat transfer effect of the heat sink, improve the upper limit of the heat conduction of the heat sink and concentrate various materials into a whole.
[0019] The present invention is further described below through the accompanying drawings and specific embodiments, but it does not mean to limit the protection scope of the present invention. Unless otherwise specified, the implementation conditions and devices in the embodiments are conventional implementation conditions in the art and conventional devices available on the market. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the layered structure of the aluminum heat dissipation plate with a three-dimensional structure according to Example 1 of the utility model.
[0021] Figure 2This is a schematic structural diagram of the aluminum heat dissipation plate with a three-dimensional structure after brazing according to Example 1 of the utility model.
[0022] Figure 3 This is a schematic diagram of the structure of the aluminum thermal plate with a three-dimensional structure after machining and wire cutting according to Example 1 of the utility model.
[0023] Figure 4 This is a schematic structural diagram of the final product of the aluminum thermal plate with a three-dimensional structure according to Example 1 of the utility model.
[0024] Figure 5 This is a schematic diagram of the layered structure of the aluminum thermal circuit board with a three-dimensional structure according to Example 2 of the utility model.
[0025] Figure 6 This is a schematic diagram of the structure of the aluminum thermistor circuit board with a three-dimensional structure after brazing and machining in Example 2 of the utility model.
[0026] Figure 7 This is a schematic diagram of the structure of the aluminum thermal plate with a three-dimensional structure after machining and wire cutting according to Example 2 of the utility model.
[0027] Figure 8 This is a schematic structural diagram of the final product of the aluminum thermal circuit board with a three-dimensional structure according to Example 2 of the utility model.
[0028] Fig. 9 This is a schematic diagram of the layered structure of the aluminum heat dissipation plate with a three-dimensional structure according to Example 3 of the utility model.
[0029] Fig.10 This is a schematic diagram of the structure of the aluminum thermistor circuit board with a three-dimensional structure after brazing and machining in Example 3 of the utility model.
[0030] Fig.11 This is a schematic structural diagram of an aluminum thermal plate with a three-dimensional structure after machining and wire cutting according to Example 3 of the utility model.
[0031] Fig.12 This is a schematic structural diagram of the final product of the aluminum thermal circuit board with a three-dimensional structure according to Example 3 of the utility model.
[0032] Main parts name:
[0033] 10 first bending channel plate 20 first composite plate
[0034] 30 middle channel plate 40 second composite plate
[0035] 50 bottom channel plate 60 third composite plate
[0036] 70 aluminum plate 80 second bending channel plate
[0037] 90 third bending channel plate 100 fourth composite plate
[0038] 110 second intermediate channel plate 120 fifth composite plate DETAILED DESCRIPTION
[0039] Unless otherwise specified, the components mentioned in the present invention are all conventional components available in the market in this field; the connections between the components are conventional connections; and the control devices used are all conventional control devices in this field.
[0040] Example 1
[0041] A preparation method of an aluminum thermal plate having a three-dimensional structure comprises the following steps:
[0042] (1) Stack the plates
[0043] like Figure 1 The figure is a schematic diagram of the layered structure of the aluminum heat dissipation plate with a three-dimensional structure according to Example 1 of the utility model; wherein 10 is a first bending channel plate, made of AL3003, with a size of 325*205*2.5mm, 20 is a first composite plate, the material of which is divided into three layers: the upper layer is a vacuum brazing solder AL4104, the middle layer is an aluminum plate AL3003, the lower layer is a vacuum brazing solder AL4104, with a size of 325*205*0.5mm, 30 is an intermediate channel plate, made of AL3003, size is 325*205*3.9mm, 40 is the second composite plate, the material is divided into three layers: the upper layer is the vacuum brazing solder AL4104, the middle layer is the aluminum plate AL3003, the lower layer is the vacuum brazing solder AL4104, the size is 325*205*0.5mm, 50 is the bottom channel plate, the material is AL3003, the size is 325*205*1.5mm, 60 is the third composite plate, the material is divided into three layers: the upper layer is the vacuum brazing solder A L4104, the middle layer is aluminum plate AL3003, the lower layer is vacuum brazing solder AL4104, the size is 325*205*0.5mm, 70 is aluminum plate, the material is AL3003, the size is 325*205*1.5mm; the aluminum heat dissipation plate with a three-dimensional structure of embodiment 1 of the utility model includes: from top to bottom, the first bending channel plate 10, the first composite plate 20, the middle channel plate 30, the second composite plate 40, the bottom channel plate 50, the third composite plate 60 and and aluminum plate 70; the function of the first bending channel plate 10 is to conduct heat to the Z axis through the channel and to even out the temperature; the first composite plate 20 is respectively connected to the first bending channel plate 10 and the middle channel plate 30; the function of the first composite plate 20 is to fuse the first bending channel plate 10, the first composite plate 20 and the middle channel plate 30 into one during the vacuum brazing process; the function of the middle channel plate 30 is to transition between the first bending channel plate 10 and the bottom channel plate 50, so as to leave space for subsequent processing wire cutting, such as Figure 3 As shown, gaps are left on both sides of the neck between the uppermost portion that needs to be bent and the lowermost bottom plate for bending purposes, the second composite plate 40 is connected to the middle channel plate 30 and the bottom channel plate 50 respectively, the function of the second composite plate 40 is to fuse the middle channel plate 30, the second composite plate 40 and the bottom channel plate 50 into one during vacuum brazing, the bottom channel plate 50 is the channel plate of the bottom portion that does not need to be bent, the function of the bottom channel plate 50 is to evenly distribute heat to the XY axis through the channel, the third composite plate 60 is connected to the bottom channel plate 50 and the aluminum plate 70 respectively, the function of the third composite plate 60 is to fuse the bottom channel plate 50, the third composite plate 60 and the aluminum plate 70 into one during vacuum brazing, the function of the aluminum plate 70 is to strengthen the strength of the heat circuit plate and make the structure required by the product;
[0044] The first bent channel plate 10, the first composite plate 20, the middle channel plate 30, the second composite plate 40, the bottom channel plate 50, the third composite plate 60 and the aluminum plate 70 are arranged according to the attached Figure 1 way, superimposed together;
[0045] (2) Brazing
[0046] The stacked products of step (1) are placed in a vacuum brazing furnace. The high temperature in the furnace melts the AL4104 solder on the composite board and fuses it with the seven layers of board to form a semi-finished product. Figure 2 As shown, it is a schematic diagram of the structure of the aluminum thermistor plate with a three-dimensional structure after brazing according to Example 1 of the utility model, and the size is 325*205*10.9mm;
[0047] (3) Machining and wire cutting
[0048] Will be like Figure 2 The semi-finished product after vacuum brazing is placed on the processing machine for machining and wire cutting to form the following Figure 3 The form shown, such as Figure 3As shown, it is a schematic diagram of the structure of the aluminum heat dissipation plate with a three-dimensional structure after bending according to Example 1 of the utility model. The size of the upper half portion to be bent is 283*165*3mm, the size of the middle neck is 25*165*10.36mm, and the size of the bottom plate is 101.8*165*4mm; the excess aluminum material is removed, and the I-shaped portion with a groove is retained. The upper half portion to be bent includes a first bending groove plate 10 and a first composite plate 20, and the middle neck includes the first bending groove plate 10, the first composite plate 20, the middle groove plate 30, and the second composite plate 31. The bottom plate 40, the bottom channel plate 50, the third composite plate 60 and the aluminum plate 70, the bottom plate portion includes the middle channel plate 30, the second composite plate 40, the bottom channel plate 50, the third composite plate 60 and the aluminum plate 70, the bottom plate portion is used to conduct the bottom heat and evenly distribute the temperature, the upper half of the long part that needs to be bent is the bending area, and its function is to conduct the heat to the Z axis, the position of the middle neck is to connect the upper half of the long part that needs to be bent and the bottom plate portion, and its function is to connect the upper half of the long part that needs to be bent and the channel of the bottom plate portion, so as to realize the heat transfer between the upper half and the lower half;
[0049] (4) Bending
[0050] The semi-finished product after machining and wire cutting in step (3) is placed on the bending machine and bent by downward pressure. The shape after bending is as follows Figure 4 As shown, it is a schematic structural diagram of the final product of the aluminum heat dissipation plate with a three-dimensional structure of Example 1 of the utility model. The size of the upper half portion that needs to be bent is 55.3*165*123.5mm, the size of the neck in the middle is 25*165*10.36mm, and the size of the bottom plate portion is 101.8*165*4mm; it is the final form of the product of the present invention. The bottom plate is used to lock and fix the heat source and equalize the heat. By bending, Figure 3 The long transverse part of the upper part shown is bent using a bending machine. Figure 3 The long horizontal part of the upper part shown is bent, and the horizontal aluminum plate with grooves is bent into a vertical direction by a bending machine, so as to realize heat transfer in the Z-axis direction, and use air cooling to take away the heat to achieve heat dissipation.
[0051] The heat equalization method and process of Example 1 of the utility model are as follows: heat is conducted to the bottom channel plate 50 through the third composite plate 60 and the aluminum plate 70. The heat conducted by the third composite plate 60 and the aluminum plate 70 is evenly distributed on the bottom channel plate 50 through the self-organized heat dissipation system (SOTS). The first composite plate 20, the middle channel plate 30, and the second composite plate 40 are provided with holes in the middle position, which correspond to each other from top to bottom, thereby forming an interconnected integral hole. The function of the first composite plate 20 and the second composite plate 40 is to weld the first bent channel plate 10, the middle channel plate 30, and the bottom channel plate 50 into a whole during vacuum brazing. The heat on the bottom channel plate 50 is evenly distributed on the bottom channel plate 50 through the self-organized heat dissipation system (SOTS); A self-organized heat dissipation system (SOTS) is evenly distributed on the first bending channel plate 10; a self-organized heat dissipation system (SOTS) is evenly distributed on the middle channel plate 30; after the first bending channel plate 10, the first composite plate 20, the middle channel plate 30, the second composite plate 40, the bottom channel plate 50, the third composite plate 60 and the aluminum plate 70 are welded together by vacuum brazing, all the channels inside the first bending channel plate 10, the middle channel plate 30 and the bottom channel plate 50 are interconnected, and the middle channel plate 30 connects the channels of the first bending channel plate 10 with the channels of the bottom channel plate 50 to form an integral channel that connects all the channels; the heat forms a self-organized heat dissipation system (SOTS) through these micro-channels, and the heat is conducted to various parts of the final product.
[0052] Example 2
[0053] The difference between this embodiment and the first embodiment is that the height of the area to be bent in the Z-axis direction after being bent is different so as to adapt to heat sinks of different specifications.
[0054] A preparation method of an aluminum thermal plate having a three-dimensional structure comprises the following steps:
[0055] (1) Stack the plates
[0056] like Figure 5As shown, it is a schematic diagram of the layered structure of the aluminum heat dissipation plate with a three-dimensional structure according to Example 2 of the utility model; wherein 80 is the second bending channel plate, made of AL3003, with a size of 325*205*2.5mm, 20 is the first composite plate, the material is divided into three layers: the upper layer is the solder AL4104 for vacuum brazing, the middle layer is the aluminum plate AL3003, the lower layer is the solder AL4104 for vacuum brazing, with a size of 325*205*0.5mm, 30 is the middle channel plate, made of AL3003, size is 325*205*3.9mm, 40 is the second composite plate, the material is divided into three layers: the upper layer is the vacuum brazing solder AL4104, the middle layer is the aluminum plate AL3003, the lower layer is the vacuum brazing solder AL4104, the size is 325*205*0.5mm, 50 is the bottom channel plate, the material is AL3003, the size is 325*205*1.5mm, 60 is the third composite plate, the material is divided into three layers: the upper layer is the vacuum brazing solder A L4104, the middle layer is aluminum plate AL3003, the lower layer is vacuum brazing solder AL4104, the size is 325*205*0.5mm, 70 is aluminum plate, the material is AL3003, the size is 325*205*1.5mm; the aluminum heat dissipation plate with a three-dimensional structure of embodiment 2 of the utility model includes: from top to bottom, the second bending channel plate 80, the first composite plate 20, the middle channel plate 30, the second composite plate 40, the bottom channel plate 50, the third composite plate 60 and and aluminum plate 70; the function of the second bending channel plate 80 is to conduct heat to the Z axis through the channel and to even out the temperature; the first composite plate 20 is connected to the second bending channel plate 80 and the middle channel plate 30 respectively; the function of the first composite plate 20 is to fuse the second bending channel plate 80, the first composite plate 20 and the middle channel plate 30 into one during the vacuum brazing process; the function of the middle channel plate 30 is to transition between the second bending channel plate 80 and the bottom channel plate 50, so as to leave space for subsequent processing wire cutting, such as Figure 7 As shown, gaps are left on both sides of the neck between the uppermost portion to be bent and the lowermost bottom plate for bending purposes, the second composite plate 40 is connected to the middle channel plate 30 and the bottom channel plate 50 respectively, the function of the second composite plate 40 is to fuse the middle channel plate 30, the second composite plate 40 and the bottom channel plate 50 into one during vacuum brazing, the bottom channel plate 50 is the channel plate of the bottom portion that does not need to be bent, the function of the bottom channel plate 50 is to evenly distribute heat to the XY axis through the channel, the third composite plate 60 is connected to the bottom channel plate 50 and the aluminum plate 70 respectively, the function of the third composite plate 60 is to fuse the bottom channel plate 50, the third composite plate 60 and the aluminum plate 70 into one during vacuum brazing, the function of the aluminum plate 70 is to strengthen the strength of the heat circuit plate and make the structure required by the product;
[0057] The second bent channel plate 80, the first composite plate 20, the middle channel plate 30, the second composite plate 40, the bottom channel plate 50, the third composite plate 60 and the aluminum plate 70 are arranged according to the attached Figure 5 way, superimposed together;
[0058] (2) Vacuum brazing
[0059] The stacked products of step (1) are placed in a vacuum brazing furnace. The high temperature in the furnace melts the AL4104 solder on the composite board and fuses it with the seven layers of board to form a semi-finished product. Figure 6 As shown, it is a schematic diagram of the structure of the aluminum thermistor plate with a three-dimensional structure after brazing according to Example 2 of the utility model, and the size is 325*205*10.9mm;
[0060] (3) Machining and wire cutting
[0061] Will be like Figure 6 The semi-finished product after vacuum brazing is placed on the processing machine for machining and wire cutting to form the following Figure 7 The form shown, such as Figure 7 As shown, it is a schematic diagram of the structure of the aluminum heat dissipation plate with a three-dimensional structure after bending according to Example 2 of the utility model. The size of the upper half portion to be bent is 142*165*3mm, the size of the middle neck is 25*165*10.36mm, and the size of the bottom plate is 101.8*165*4mm; the excess aluminum material is removed, and the I-shaped portion with a groove is retained. The upper half portion to be bent includes a second bending groove plate 80 and a first composite plate 20, and the middle neck includes a second bending groove plate 80, a first composite plate 20, an intermediate groove plate 30, and a second composite plate 40, a bottom channel plate 50, a third composite plate 60 and an aluminum plate 70, the bottom plate portion includes an intermediate channel plate 30, a second composite plate 40, a bottom channel plate 50, a third composite plate 60 and an aluminum plate 70, the bottom plate portion is used to conduct the bottom heat upward and evenly distribute the temperature, the upper half portion that needs to be bent is a bending area, and its function is to conduct the heat to the Z axis, the position of the middle neck is to connect the upper half portion that needs to be bent and the bottom plate portion, and its function is to connect the upper half portion that needs to be bent and the channel of the bottom plate portion, so as to realize the heat transfer between the upper half and the lower half;
[0062] (4) Bending
[0063] The semi-finished product after machining and wire cutting in step (3) is placed on the bending machine and bent by downward pressure. The shape after bending is as follows Figure 8As shown, it is a schematic diagram of the final finished product structure of the aluminum heat plate with a three-dimensional structure of Example 2 of the utility model. The size of the upper half that needs to be bent is 55.3*165*48mm, the size of the neck in the middle is 25*165*10.36mm, and the size of the bottom plate is 101.8*165*4mm; it is the final form of the product of the present invention. The bottom plate is used to lock and fix the heat source and equalize the heat. Figure 7 The long horizontal part of the upper part shown in the figure is used in a bending machine. Figure 7 The long horizontal part of the upper part shown is bent, and the horizontal aluminum plate with grooves is bent into a vertical direction by a bending machine, so as to realize heat transfer in the Z-axis direction, and use air cooling to take away the heat to achieve heat dissipation.
[0064] The heat equalization method and process of Example 2 of the utility model are as follows: heat is conducted to the bottom channel plate 50 through the third composite plate 60 and the aluminum plate 70, and the heat conducted by the third composite plate 60 and the aluminum plate 70 is evenly distributed on the bottom channel plate 50 through the self-organized heat dissipation system (SOTS); the holes of the first composite plate 20, the middle channel plate 30, and the second composite plate 40 are located in the middle of the aluminum plate, and correspond to each other from top to bottom, thereby forming an interconnected integral hole. The function of the first composite plate 20 and the second composite plate 40 is to weld the second bent channel plate 80, the middle channel plate 30, and the bottom channel plate 50 into a whole during vacuum brazing, and connect the second bent channel plate 80. The heat on the bottom channel plate 50 is evenly distributed on the bottom channel plate 50 through the self-organized heat dissipation system (SOTS). The plate 50 is provided with a self-organized heat dissipation system (SOTS) evenly distributed on the second bending channel plate 80; the self-organized heat dissipation system (SOTS) is evenly distributed on the middle channel plate 30; the second bending channel plate 80, the first composite plate 20, the middle channel plate 30, the second composite plate 40, the bottom channel plate 50, the third composite plate 60 and the aluminum plate 70, after these seven plates are welded together by vacuum brazing, all the channels inside the second bending channel plate 80, the middle channel plate 30 and the bottom channel plate 50 are interconnected, and the middle channel plate 30 connects the channels of the second bending channel plate 80 with the channels of the bottom channel plate 50 to form an integral channel that connects all the channels; the heat forms a self-organized heat dissipation system (SOTS) through these micro channels, and the heat is conducted to various parts of the final product.
[0065] Example 3
[0066] A preparation method of an aluminum thermal plate having a three-dimensional structure comprises the following steps:
[0067] (1) Stack the plates
[0068] like Fig. 9 The figure is a schematic diagram of the layered structure of the aluminum heat dissipation plate with a three-dimensional structure according to Example 3 of the utility model; wherein 90 is the third bending channel plate, made of AL3003, with a size of 325*205*2.5mm, 100 is the fourth composite plate, the material of which is divided into three layers: the upper layer is the solder AL4104 for vacuum brazing, the middle layer is the aluminum plate AL3003, the lower layer is the solder AL4104 for vacuum brazing, with a size of 325*205*0.5mm, 110 is the second middle channel plate, made of A L3003, size is 325*205*3.9mm, 120 is the fifth composite plate, the material is divided into three layers: the upper layer is the vacuum brazing solder AL4104, the middle layer is the aluminum plate AL3003, the lower layer is the vacuum brazing solder AL4104, the size is 325*205*0.5mm, 50 is the bottom channel plate, the material is AL3003, the size is 325*205*1.5mm, 60 is the third composite plate, the material is divided into three layers: the upper layer is the vacuum brazing solder AL410 4, the middle layer is aluminum plate AL3003, the lower layer is vacuum brazing solder AL4104, the size is 325*205*0.5mm, 70 is aluminum plate, the material is AL3003, the size is 325*205*1.5mm; the aluminum heat dissipation plate with a three-dimensional structure of embodiment 3 of the utility model includes: from top to bottom, the third bending channel plate 90, the fourth composite plate 100, the second middle channel plate 110, the fifth composite plate 120, the bottom channel plate 50, the third composite plate 60 and the aluminum plate 7 0; The function of the third bending channel plate 90 is to conduct heat to the Z axis through the channel and to even out the temperature. The fourth composite plate 100 is connected to the third bending channel plate 90 and the second intermediate channel plate 110 respectively. The function of the fourth composite plate 100 is to fuse the third bending channel plate 90, the fourth composite plate 100 and the second intermediate channel plate 110 into one during the vacuum brazing process. The function of the intermediate channel plate 30 is to transition between the third bending channel plate 90 and the bottom channel plate 50, so as to leave space for subsequent processing line cutting, such as Fig.11 As shown, gaps are left on both sides of the neck between the uppermost portion that needs to be bent and the lowermost bottom plate for bending purposes, the second composite plate 40 is connected to the middle channel plate 30 and the bottom channel plate 50 respectively, the function of the second composite plate 40 is to fuse the middle channel plate 30, the second composite plate 40 and the bottom channel plate 50 into one during vacuum brazing, the bottom channel plate 50 is the channel plate of the bottom portion that does not need to be bent, the function of the bottom channel plate 50 is to evenly distribute heat to the XY axis through the channel, the third composite plate 60 is connected to the bottom channel plate 50 and the aluminum plate 70 respectively, the function of the third composite plate 60 is to fuse the bottom channel plate 50, the third composite plate 60 and the aluminum plate 70 into one during vacuum brazing, the function of the aluminum plate 70 is to strengthen the strength of the heat circuit plate and make the structure required by the product;
[0069] The third bent channel plate 90, the fourth composite plate 100, the second middle channel plate 110, the fifth composite plate 120, the bottom channel plate 50, the third composite plate 60 and the aluminum plate 70 are arranged according to the attached Fig. 9 way, superimposed together;
[0070] (2) Brazing
[0071] The stacked products of step (1) are placed in a vacuum brazing furnace. The high temperature in the furnace melts the AL4104 solder on the composite board and fuses it with the seven layers of board to form a semi-finished product. Fig.10 As shown, it is a schematic diagram of the structure of the aluminum thermistor plate with a three-dimensional structure after brazing in Example 3 of the utility model, and the size is 325*205*10.9mm;
[0072] (3) Machining and wire cutting
[0073] Will be like Fig.10 The semi-finished product after vacuum brazing is placed on the processing machine for machining and wire cutting to form the following Fig.11 The form shown, such as Fig.11 As shown, it is a schematic diagram of the structure of the aluminum heat dissipation plate with a three-dimensional structure after bending according to Example 3 of the utility model. The size of the upper half portion to be bent is 101*165*3mm, the size of the middle neck is 14*165*10.36mm, and the size of the bottom plate is 101.8*165*4mm; the excess aluminum material is removed, and the I-shaped portion with a groove is retained. The upper half portion to be bent includes a third bending groove plate 90 and a fourth composite plate 100, and the middle neck includes a third bending groove plate 90, a fourth composite plate 100, a second middle groove plate 110, and a fifth composite plate 111. The bottom plate 120, the bottom channel plate 50, the third composite plate 60 and the aluminum plate 70, the bottom plate portion includes the second middle channel plate 110, the fifth composite plate 120, the bottom channel plate 50, the third composite plate 60 and the aluminum plate 70, the bottom plate portion is used to conduct the bottom heat and evenly distribute the temperature, the upper half portion that needs to be bent is the bending area, and its function is to conduct the heat to the Z axis, the middle neck portion is connected to the upper half portion that needs to be bent and the bottom plate portion, and its function is to connect the upper half portion that needs to be bent and the channel of the bottom plate portion, so as to realize the heat transfer between the upper half and the lower half;
[0074] (4) Bending
[0075] The semi-finished product after machining and wire cutting in step (3) is placed on the bending machine and bent by downward pressure. The shape after bending is as follows Fig.12As shown, it is a schematic structural diagram of the final product of the aluminum heat dissipation plate with a three-dimensional structure of Example 3 of the utility model. The size of the upper half portion that needs to be bent is 27*165*70mm, the size of the neck in the middle is 14*165*10.36mm, and the size of the bottom plate portion is 101.8*165*4mm; it is the final form of the product of the present invention. The bottom plate is used to lock and fix the heat source and equalize the heat. By bending, Fig.12 The long transverse part of the upper part shown is bent using a bending machine. Fig.11 The long horizontal part of the upper part shown is bent, and the horizontal aluminum plate with grooves is bent into a vertical direction by a bending machine, so as to realize heat transfer in the Z-axis direction, and use air cooling to take away the heat to achieve heat dissipation.
[0076] The heat equalization method and process of Example 3 of the utility model are as follows: heat is conducted to the bottom channel plate 50 through the third composite plate 60 and the aluminum plate 70. The heat conducted by the third composite plate 60 and the aluminum plate 70 is evenly distributed on the bottom channel plate 50 through the self-organized heat dissipation system (SOTS). The fourth composite plate 100, the second intermediate channel plate 110, and the fifth composite plate 120 are provided with holes in the middle position, which correspond to each other from top to bottom, thereby forming an interconnected integral hole. The fourth composite plate 100 and the fifth composite plate 120 are used to weld the third bent channel plate 90, the second intermediate channel plate 110, and the bottom channel plate 50 into a whole during vacuum brazing. The heat on the bottom channel plate 50 is evenly distributed on the bottom channel plate 50 through the self-organized heat dissipation system (SOTS); the third The self-organized heat dissipation system (SOTS) is evenly distributed on the bending channel plate 90; the self-organized heat dissipation system (SOTS) is evenly distributed on the second intermediate channel plate 110; after the third bending channel plate 90, the fourth composite plate 100, the second intermediate channel plate 110, the fifth composite plate 120, the bottom channel plate 50, the third composite plate 60 and the aluminum plate 70 are welded together by vacuum brazing, all the channels inside the third bending channel plate 90, the second intermediate channel plate 110 and the bottom channel plate 50 are interconnected, and the second intermediate channel plate 110 connects the channels of the third bending channel plate 90 with the channels of the bottom channel plate 50 to form an integral channel that connects all the channels; the heat forms a self-organized heat dissipation system (SOTS) through these micro-channels, and the heat is conducted to various parts of the final form of the product.
[0077] The utility model has a three-dimensional structure of the aluminum heat plate heat balancing principle:
[0078] The heat equalization method of the aluminum heat plate of this three-dimensional structure is to conduct the heat from the bottom to the XY axis of the bottom channel plate 50, and then conduct the heat to the first bending channel plate 10 (Example 1) or the second bending channel plate 80 (Example 2) or the third bending channel plate 90 (Example 3) through the holes on the first composite plate 20, the middle channel plate 30, and the second composite plate 40. The heat is further evenly distributed; while the heat is continuously transferred to the bottom channel plate 50, the heat of the bottom channel plate 50 is also continuously transferred to the first bending channel plate 10 (Example 1) or the second bending channel plate 80 (Example 2) or the third bending channel plate 90 (Example 3), thereby achieving even temperature distribution of the heat over a larger area, and then dissipating the heat through air cooling or water cooling; all the channels of this product are interconnected, and this micro-channel utilizes a self-organized heat dissipation system (SOTS) to evenly transfer heat to all parts of the product.
[0079] Based on the above principles, the aluminum thermistor plate has a stronger ability to carry heat, a larger surface area after temperature equalization, and is more conducive to heat transfer.
[0080] The above description is only a preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed in the present utility model, according to the technical scheme and utility model concept or equivalent substitution or change, should be covered within the protection scope of the present utility model.
Claims
1. An aluminum heat dissipation plate with a three-dimensional structure, characterized in that: From top to bottom, it includes a bent channel plate, a first composite plate, a middle channel plate, a second composite plate, a bottom channel plate, a third composite plate and an aluminum plate, which are connected together by brazing.
2. An aluminum heat dissipation plate with a three-dimensional structure, characterized in that: It includes a bottom, a neck and a bending part, and the bottom is connected to the bending part through the neck; the bending part is composed of an upper bending channel plate and a lower first composite plate; the neck includes a bending channel plate, a first composite plate, an intermediate channel plate, a second composite plate, a bottom channel plate, a third composite plate and an aluminum plate from top to bottom; the bottom is composed of an intermediate channel plate, a second composite plate, a bottom channel plate, a third composite plate and an aluminum plate.
3. The aluminum heat dissipation plate with a three-dimensional structure according to claim 2, characterized in that: The materials of the first composite plate, the second composite plate and the third composite plate are divided into three layers: the upper layer is the solder AL4104 for vacuum brazing, the middle layer is the aluminum plate AL3003, and the lower layer is the solder AL4104 for vacuum brazing.
4. The aluminum heat dissipation plate with a three-dimensional structure according to claim 3, characterized in that: The first composite plate, the second composite plate and the third composite plate are formed by stacking three materials, AL4014, AL3003 and AL4014, in a cold pressing manner.
5. The aluminum heat dissipation plate with a three-dimensional structure according to claim 4, characterized in that: The material of the bottom channel plate is AL3003.
6. The aluminum heat dissipation plate with a three-dimensional structure according to claim 5, characterized in that: The bottom channel plate is distributed with a self-organized heat dissipation system to form channels.
7. The aluminum heat dissipation plate with a three-dimensional structure according to claim 6, characterized in that: The bent channel plate is distributed with a self-organized heat dissipation system to form channels.
8. The aluminum heat dissipation plate with a three-dimensional structure according to claim 7, characterized in that: The middle channel plate is distributed with a self-organized heat dissipation system to form channels.
9. The aluminum heat dissipation plate with a three-dimensional structure according to claim 8, characterized in that: The first composite plate, the middle channel plate and the second composite plate are provided with holes at the middle positions, which correspond to each other from top to bottom to form interconnected integral holes.
10. The aluminum heat dissipation plate with a three-dimensional structure according to claim 9, characterized in that: All the channels inside the bending channel plate, the middle channel plate and the bottom channel plate are connected, and the middle channel plate connects the channels of the bending channel plate and the channels of the bottom channel plate together to form an integral channel that connects all the channels.