TW202331184A - Heat sink assembly with heat pipe - Google Patents

Abstract

A heat sink assembly with heat pipe includes at least one aluminum fin assembly and at least one copper heat pipe, which are made of dissimilar metal materials. The aluminum fin assembly includes at least one area to be connected to other members of the heat sink assembly, such as a groove. A copper embedding layer is provided on a groove inner surface of the groove for connecting the aluminum fin assembly to the copper heat pipe. By providing the copper embedding layer, the connection between the aluminum fin assembly and the copper heat pipe made of dissimilar metal materials is improved, and the problems of eutectic grains formed on the surface of the aluminum fin assembly and environmental pollution caused by electroless nickel plating are eliminated.

Description

Radiator assembly with heat pipe

The present invention relates to radiators, in particular to a radiator assembly with heat pipes, which is provided with a copper insert layer at the joint part of the aluminum radiator to be combined with copper heat pipes.

Press, radiators or cooling fins are usually used to dissipate the heat generated in heating elements or systems in the external air by heat exchange; and in the case of low thermal resistance, it shows that the cooling fins have higher heat dissipation efficiency. Generally speaking, the thermal resistance is composed of the diffusion thermal resistance inside the heat sink and the convective thermal resistance between the surface of the heat sink and the atmosphere. At present, a more efficient heat dissipation mechanism is to use a combination of heat pipes with high thermal conductivity and fins of the radiator to effectively solve the heat dissipation problem. Generally, a heat dissipation module with a heat pipe includes at least one heat pipe and a plurality of fin groups arranged at intervals, and a flow channel is often provided between adjacent fins. Each fin is provided with a through hole aligned with each other, an upper folded edge and a lower folded edge. The upper flange and the lower flange are respectively provided with at least one fastening portion, and each fin is fastened to the fastening portion of an adjacent fin through the fastening portion to form a finned radiator or heat dissipation fin The fins are grouped together, so that the upper folded edges of the fins jointly form a top side of the heat sink, and the lower folded edges jointly form a bottom side of the heat sink. Furthermore, the periphery of the through hole of the fin protrudes from one side to the other to form a through hole flange. When the through hole is penetrated by one end of the heat pipe, the through hole flange surrounds the outer surface of one end of the heat pipe. ; The other end of the heat pipe extends to the bottom side of the heat sink or heat dissipation fin group or cooperates with a base. Generally speaking, the connection between the through holes of the fins and one end of the heat pipe is commonly used in two ways: a tight fit or a loose fit. The outer diameter at one end causes an interference bond between the two. In addition, heat the fins by means of thermal expansion and contraction to make the inner diameter of the through-hole flange slightly larger than the outer diameter of one end of the heat pipe, and then after the heat pipe is inserted into the through-hole, cool the fin to make the through-hole flange The inner diameter shrinks back to its original size and fits closely with the heat pipe. In addition, in the conventional loose-fitting method, for example, the inner diameter of the through-hole flange is slightly larger than the outer diameter of one end of the heat pipe, and a medium (such as thermal conductive glue or solder paste or tin strips to fill the gap) is provided between the through-hole of the fin and the heat pipe. . One of the ways to set the medium is to set the medium on the inner edge of the through hole and the outer surface of one end of the heat pipe; the other way is to open a filling hole on the edge of the through hole, and set the medium on the filler inside the hole. During processing, the medium is heated to melt and evenly cover the gap between the outer surface of the heat pipe and the inner edge of the through hole. Moreover, the tight fit method also utilizes a beam opening device to apply pressure on the through-hole flange to form a corrugated structure, and the corrugated structure has a plurality of continuous concave parts and convex parts arranged alternately around the radial direction of the through-hole flange, and The convex portion and the concave portion are tightly bound on the outer surface of one end of the heat pipe, and radially pressed toward the heat pipe to deform the outer surface of the heat pipe, and then interfere with the outer surface of the heat pipe, so that the through-hole flange and the heat pipe The heat pipes are tightly packed together. In addition, the industry further considers the overall weight and cost of the overall radiator. In order to meet the requirements of lighter weight and low cost, usually the fins, radiator or base are made of aluminum materials with light weight and low cost, and the heat pipes are made of aluminum. Made of metals with high thermal conductivity (such as brass or aluminum, nickel, stainless steel, etc.). Although choosing aluminum instead of copper can improve the problems of heavy weight of copper and high cost of materials, other problems arise, such as the surface of aluminum is easily oxidized, and oxides with high melting points are formed during the welding process, making the weld metal difficult to weld. Complete fusion brings difficulties to welding. If copper and aluminum are directly welded, the part where the two materials are directly connected is prone to cracks due to high brittleness after welding, and when copper and aluminum are welded, close to the copper material It is easy to form eutectics such as CuAl2 in the weld on this side, and the eutectic structure such as CuAl2 is only distributed near the grain boundaries of the material, which is prone to fatigue or cracks between grain boundaries, and due to the melting point temperature of copper and aluminum And the eutectic temperature is very different. In the fusion welding operation, when the aluminum melts, the copper remains in a solid state. When the copper melts, the aluminum has melted a lot and cannot coexist in a eutectic or eutectic state, which increases the difficulty of welding. In addition, due to the good thermal conductivity of copper and aluminum, the metal in the molten pool crystallizes quickly during welding, and the metallurgical reaction gas at high temperature has no time to escape, and the weld is prone to produce pores. Therefore, direct welding between copper and aluminum cannot be performed. The surface of the aluminum material must be modified for subsequent welding with copper or other materials. In particular, in order to improve the lack of direct welding with copper or other dissimilar materials by using aluminum instead of copper, some advancers have used electroless nickel plating (ie, electroless nickel plating) as a technical method for surface modification. Generally speaking, there are three types of electroless nickel plating (that is, electroless nickel plating): low phosphorus, medium phosphorus, and high phosphorus. Metal ions are reduced, and the surface of the test piece must be catalyzed before electroless nickel plating. The electroless nickel plating solution can be divided into the following three types: (1) Activation sensitization + acidic plating bath with a pH value between 4 and 6 is an acidic plating solution, which is characterized by less loss of components due to evaporation, although the operating The temperature is higher, but the plating solution is safer and easier to control, with high phosphorus content and high plating rate, and is often used in the industry. (2) Activation and sensitization + alkaline bath The pH value of the alkaline plating bath is between 8 and 10. Because the ammonia water for adjusting the pH value is easy to volatilize, it is necessary to replenish ammonia water in time to maintain the stability of the pH value during operation. The amount is less, the bath is more unstable, and the operating temperature is lower. (3) HPM + Alkaline plating bath HPM is to immerse the silicon wafer in the mixture of DI-water : H2O2(aq): HCl(aq) = 4:1:1 and use the oxide layer formed on the surface of the silicon crystal to replace the sensitive activation to form an autocatalytic surface on the surface. However, a large amount of chemical reaction liquid is used in the electroless nickel plating (ie, electroless nickel plating) process, and a large amount of industrial waste liquid containing heavy metals or chemical substances will be produced after the electroless nickel plating process, and industrial waste liquid will produce A large amount of waste water containing toxic substances such as yellow phosphorus cannot be recycled. Moreover, the yellow phosphorus contained in yellow phosphorus sewage with a concentration of 50 to 390 mg/L is a highly toxic substance, and if it enters the human body, it will cause great harm to the liver and other organs. Long-term drinking of phosphorus-containing water can lead to osteoporosis and osteonecrosis of the jaw. Therefore, the current countries have begun to ban this process and promote non-toxic processes to protect the environment. Therefore, how to provide a method that can reduce the overall weight of the combined structure of the heat dissipation module, and replace electroless nickel plating as a surface modification method to improve the aluminum material that cannot be welded with other dissimilar materials, and at the same time, it is beneficial to the welding operation and does not generate additional environmental pollutants. , which is the most important goal at this stage. Therefore, how to solve the above-mentioned problems and deficiencies is the direction that the author of this case and related manufacturers engaged in this industry want to study and improve.

In order to improve the above-mentioned problems, an object of the present invention is to provide a copper-aluminum dissimilar material composition between different components, by setting a copper insertion layer on at least one of the aluminum fin group to be combined. Contact with the copper heat pipe, so that different components composed of different materials of copper and aluminum can be directly welded. The aluminum fin group can be welded and combined with the copper heat pipe without the need for electroless nickel plating, so that no toxic substances are produced. The effect of environmental protection, and improve the known problem of eutectic formation. One object of the present invention is to provide a copper inserting layer formed at the joint site where the aluminum fin group is used to be combined with either or both of the copper heat pipe or the base, so that the aluminum fin group does not The heat sink assembly with heat pipes can be welded and combined with copper heat pipes or copper bases without electroless nickel plating process, thereby reducing the overall weight of the structure, reducing the thermal resistance of the joints and improving the heat transfer efficiency. To achieve the above purpose, the present invention provides a heat sink assembly with heat pipes, comprising: at least one aluminum fin group, which is composed of a plurality of aluminum fins fastened together and has a bottom surface and a top surface, and There is a channel between two adjacent aluminum fins, the bottom surface is provided with at least one channel, the channel has a channel opening and an inner surface of the channel, and each aluminum fin is provided with at least one penetrating A through hole, the through hole has a through hole flange protruding from one side of the aluminum fin, and the inner surface of the groove is used as a part to be combined with the aluminum fin group and the heat pipe. A copper insertion layer of a contact surface, and the deep surface of the insertion layer is combined with the inner surface of the channel and goes deep under the inner surface of the channel; at least one copper heat pipe has a first end and a first end The two ends respectively pass through the through hole and the channel of the aluminum fin group, and the first end is closely fitted with the flanges of the through holes, and the second end is connected with the copper insert layer on the inner surface of the channel. The contact surfaces are combined. The second end of the at least one copper heat pipe has an exposed surface of the heat pipe exposed from the opening of the channel, and a contact surface of the heat pipe is in contact with the contact surface of the copper insertion layer inside the channel and is bonded by soldering . The aforementioned through-hole flange ring is provided with a corrugated or spine-like structure tightly bound on the outer surface of the first end. The bottom surface of the aforementioned fin group is provided with the copper insertion layer as another part of the fin group to be combined. The present invention further provides a heat sink assembly with heat pipes, which includes: at least one aluminum fin group with a bottom surface and a top surface, a flow channel is provided between two adjacent aluminum fins, and the bottom surface is provided with At least one channel, the channel has a channel opening and an inner surface of the channel, and each fin is provided with at least one through hole passing through the aluminum fin, the through hole has a through hole flange formed by the aluminum fin One side of the sheet protrudes and defines a flange inner surface, the inner surface of the groove and the inner surface of the flange are respectively provided with a copper insertion layer as a part to be combined with the aluminum fin group, the copper The insertion layer has a deep surface and a contact surface, and the deep surface is respectively combined with the inner surface of the channel and the inner surface of the flange and penetrates into the inner surface of the channel and the inner surface of the flange; at least one copper The heat pipe has a first end and a second end respectively passing through the through-hole and the channel of the aluminum fin group, the first end is loosely fitted with the through-hole flange and connected with the copper on the inner surface of the flange. The second end is in contact with the contact surface of the copper insertion layer on the inner side of the channel and is connected by welding. The second end of the at least one heat pipe has a heat pipe exposed surface exposed from the channel opening, and a heat pipe contact surface is combined with the contact surface of the copper insertion layer on the inner surface of the channel. The bottom surface of the aforementioned fin group is provided with the copper insertion layer as another part of the fin group to be combined.

The above-mentioned purpose of the present invention and its structural and functional characteristics will be described based on the preferred embodiments of the accompanying drawings. Please refer to Figure 1A, which is a three-dimensional exploded schematic diagram of the present invention; Figure 1B, which is a schematic diagram of a three-dimensional combination of the present invention; Figure 1C, which is a schematic diagram of another perspective of a three-dimensional combination of the present invention; Figure 1D, which is the outermost design of the aluminum fin group of the present invention There is a schematic diagram of a fastened outer fin; Fig. 2A is a schematic cross-sectional view of the aluminum fin group of the present invention; Fig. 2B is a schematic cross-sectional view of the combination of the aluminum fin group and the copper heat pipe of the present invention. As shown in the figure, a radiator structure 10 includes an aluminum fin set 11 and at least one copper heat pipe 121, the aluminum fin set 11 has a bottom surface 113 and a top surface 116, and the bottom surface 113 is provided with at least one groove The channel 115 represents two channels 115 in this embodiment, and the channel 115 has a channel opening 1151 cut into the bottom surface 113, and a channel inner surface 1152 is concavely set in the direction opposite to the bottom surface 113, and the bottom surface 113 and the inner surface 1152 of the groove are respectively used as a joint to be combined with the fin group 11 and other copper parts (details are described later). Specifically, the aluminum fin set 11 is composed of a plurality of aluminum or aluminum alloy fins 111 that are fastened horizontally or vertically, and has a flow channel 117 between two adjacent aluminum fins 111 . In this figure, each aluminum fin 111 has an upper folded edge 1111 and a lower folded edge 1112 protruding and aligned with the upper folded edge 1111 and the lower folded edge 1112 of the adjacent aluminum fin 111, and the upper folded edge 1111 and the lower folded edge 1112 are aligned. The folded edge 1111 and the lower folded edge 1112 are respectively provided with at least one fastening part 11111, 11121. Although the fastening part 11111, 11121 shows a concave-convex structure in the figure, it is not limited to this, and also includes currently known technical means . Each aluminum fin 111 is horizontally fastened to the fastening portions 11111 , 11121 of adjacent aluminum fins 111 through the fastening portions 11111 , 11121 to form a fastening fin radiator structure. In such a configuration, the upper folded edges 1111 jointly form the top surface 116 of the aluminum fin set 11 , and the lower folded edges 1112 jointly form the bottom surface 113 of the aluminum fin sets 11 . Furthermore, the lower edge 1112 of each aluminum fin 111 is provided with at least one groove, and after the aluminum fins 111 are snapped together, the grooves are aligned with each other to form the channel on the bottom surface 113 115. Each aluminum fin 111 is provided with at least one through hole 114 penetrating through, and these through holes 114 are aligned with each other. One side of the aluminum fin 111 protrudes (a front side of the fin 111 is shown in the figure) and defines a flange inner side 1143 . In addition, without being limited thereto, the aluminum fin set 11 may also be vertically fastened. Furthermore, an inverted aluminum fin 111 is provided on an outermost side of the aluminum fin set 11 to prevent the upper folded edge 1111 and the lower folded edge 1112 from scratching other parts (as shown in FIG. 1D ). The copper heat pipe 121 (two heat pipes 121 are shown in this figure) is, for example, a U-shaped heat pipe, wherein the copper includes copper and copper alloy. Specifically, the copper heat pipe 121 (such as a round, D-shaped, or flat heat pipe) has a first end 1211 and a second end 1212, and the first end 1211 passes through the through hole 114 and the through hole 114. The hole flange 114 is tightly fitted (for example, the inner diameter of the flange inner surface 1143 of the through-hole flange 1141 is slightly smaller than the outer diameter of the first end 1211 of the copper heat pipe 121, so that the two interfere with each other, or use thermal expansion and contraction to The aluminum fin 111 is heated to expand the inner diameter of the through-hole flange 1141, and then the copper heat pipe 121 is inserted into the through-hole 114, and the aluminum fin 111 is cooled to shrink the inner diameter of the through-hole flange 1141. Back to the original size and tightly fit with the copper heat pipe 121 ), the second end 1212 extends to the bottom surface 113 of the fin set 11 and runs through the channel 115 . The second end 1212 has a heat pipe exposed surface 12121 corresponding to the channel opening 1151 , and a heat pipe contact surface 12122 facing the channel inner surface 1152 . In the present invention, a U-shaped portion 1213 is optionally provided between the first end 1211 and the second end 1212 , and the U-shaped portion 1213 extends from the first section 1211 to the second end 1212 . The first end 1211 of the copper heat pipe 121 is used as the condensation end, and the second end 1212 is used as the evaporation end, and the copper heat pipe 121 is provided with at least one capillary structure and a working liquid. The at least one capillary structure is, for example, The capillary structure extends from the first end 1211 to the second end 1212 of any one or a combination of grooves, powder sintered body, mesh body, fiber body, and corrugated board. Furthermore, although the cross section of the first end 1211 of the copper heat pipe 121 shown in the figure is circular, the cross section of the second end 1212 is D-shaped or flat, that is, the exposed side 12121 of the second end 1212 It is a plane (the plane is realized by mechanical processing methods such as flattening with a jig or milling with a milling cutter), and is aligned with the bottom surface 113 of the aluminum fin assembly 11 . But not limited thereto, in other alternative implementations, the cross-sections of the first end 1211 and the second end 1212 are both circular or flat. As shown in FIG. 3, in another alternative implementation, the through-hole flange 1141 of each aluminum fin 111 is provided with a corrugated (or spine-like) structure 1142 tightly bound to the first end 1211 of the copper heat pipe 121. The outer surface of the copper heat pipe 121 is inserted into the through-hole 114 after the first end 1211 of the copper heat pipe 121 is inserted into the through-hole 114, and the corrugated (or spine-like) structure 1142 is formed on the through-hole flange 1141 by using a beam opening device. , the corrugated (or spine-like) structure 1142 has a plurality of continuous concave parts and convex parts arranged staggered around the radial direction of the through-hole flange 1141, and radially pressed toward the copper heat pipe 121 to make the copper heat pipe 121 The outer surface of the copper heat pipe 121 is deformed, and then interferes with the outer surface of the copper heat pipe 121, so that the aluminum fins 111 are fixed on the first end 1211 of the copper heat pipe 121, preventing the copper heat pipe 121 from being pulled out of the transparent Hole 114. Please continue to refer to FIG. 4A and FIG. 4B , which are schematic diagrams of the fin assembly of the present invention before and after the copper insertion layer is provided. As shown in the figure, as shown in Figures 1A-1B and 2A-2B, the inner surface 1152 and the bottom surface 113 of the aforementioned aluminum fin group 11 are respectively provided with a copper insertion layer as a part to be bonded. (copper embedding layer) 14, the copper embedding layer 14 has a deepening surface (deepening surface) 141 and a contacting surface (connecting surface) 142 respectively located on the opposite sides of the copper embedding layer 14, the deepening surface 141 is bonding (such as occlusion or embedding or embedding or depositing) the inner surface 1152 of the channel and the bottom surface 113 , and the contact surface 142 is used as the exposed surface of the copper insertion layer 14 to contact and bond with other components. In some feasible implementations, the copper insertion layer 14 is made of copper sheet or copper foil or copper powder or liquid copper through mechanical processing (such as pneumatic, hydraulic, stamping or hydraulic extrusion or hammering) or surface treatment process (spraying, electroplating or printing) or chemical processing (such as electroplating, anodic treatment) are combined on the inner surface 1152 of the channel and the bottom surface 113, and part of the copper insertion layer 14 is directly occluded or embedded in the process of bonding Or embedded or deposited on the channel inner surface 1152 and the bottom surface 113 to deepen and form the deepening surface 141 (to deepen and form the deepening surface 141 ). In this way, the copper insertion layer 14 is not only combined with the inner surface 1152 of the channel and the bottom surface 113, but also the deep surface 141 goes deep into the inner surface 1152 of the channel and the inner surface 1152 of the channel by means of occlusion or embedding or embedding or deposition. The bottom surface 113 is used as the foundation of the copper insertion layer 14 to enhance the bonding force (strength) between the copper insertion layer 14 and the inner surface 1152 of the channel and the bottom surface 113, and to prevent the copper insertion layer from 14 peels off from the inner surface 1152 and the bottom surface 113 of the channel. With the above arrangement, the channel 15 of the aluminum fin group 11 passes through the contact surface 142 of the copper insertion layer 14 on the inner surface 1152 of the channel and the heat pipe contact surface of the second end 1212 of the copper heat pipe 121 12122 contact joints (for example, solder is provided between the contact surface 142 of the copper insert layer 14 and the heat pipe contact surface 12122 of the copper heat pipe 121 and then welded together, or ultrasonic welding or laser welding), whereby The aluminum fin assembly 11 can be welded and combined with the copper heat pipe 121 of different material without going through the electroless nickel plating process. Please continue to refer to FIG. 5, which is a three-dimensional schematic diagram of the connection between the bottom surface of the present invention and a bottom plate. As shown in the figure, the bottom surface 113 of the aluminum fin group 11 of the present invention is combined with a copper heat conduction base 15 (such as a solid bottom plate or a chamber with a working liquid in the hollow), wherein the copper includes copper or copper alloys. In this way, the bottom surface 113 is combined with the copper heat conduction base 15 through the contact surface 142 of the copper insertion layer 14 (for example, welded together), and the heat pipe exposed surface 12121 of the second end 1212 of the copper heat pipe 121 is also connected with the copper heat conduction base 15 The copper heat conduction base 15 is combined (for example, welded), so that the aluminum fin assembly 11 of different materials can be welded and combined with the copper heat conduction base 15 without going through the electroless nickel plating process. Furthermore, the heat sink structure 10 does not produce toxic substances in the manufacturing process to achieve environmental protection, and solves the conventional problem of eutectic formation. Please continue to refer to FIG. 6, which is a schematic diagram of another alternative implementation of the present invention. Although the copper inserting layer 14 is combined with the inner surface 1152 and the bottom surface 113 of the channel in the previous example, it is not limited to this, and a single channel 115a is opened in the approximate center of the bottom surface 113 of the aluminum fin group 11 in other implementations. There is a channel inner surface 1152a which is straight, and the copper insertion layer 14 is bonded to the channel inner surface 1152a. The second ends 1212a of the plurality of copper heat pipes 121 (three in this embodiment) pass through the channel 115a and are arranged side by side. Furthermore, the cross-section of the second end 1212a is rectangular so that the heat pipe contact surface 12122a of the second end 1212a of the copper heat pipes 121 forms a coplanar fit with the inner surface 1152a of the channel and with the copper insert layer. The contact surface 142 of 14 is contact bonded (eg, welded, or ultrasonically or laser welded). Furthermore, the heat pipe exposed surface 12121a of the second end 1212a of the copper heat pipes 121 forms a coplanar contact with the upper surface of a heating element 16 (such as a central processing unit or a microprocessor, etc.) (as shown in FIG. 6A ). Please continue to refer to Figures 7A to 7C, which are schematic diagrams of the loose-fit combination of the through holes of the aluminum fin set and the copper heat pipe of the present invention. Although it has been shown that the first end 1211 of the copper heat pipe 121 is tightly coupled with the through-hole flange 1141 , it is not limited thereto. In another alternative implementation, the first end 121 of the copper heat pipe 121 passes through the through hole 114 and loosely fits with the through hole flange 1141 (that is, the inner diameter of the flange inner surface 1143 of the through hole flange 1141 is slightly larger than that of the copper heat pipe 1141). The outer diameter of the first end 1211 of the heat pipe 121), and the inner surface 1143 of the flange is another part to be combined with the fin set 11, and the copper embedding layer 14 is not only arranged in the slot The inner surface 1152 of the channel and the bottom surface 113 are also arranged on the inner surface 1143 of the flange, and the deepening surface 141 is further bonded to the inner surface 1143 of the flange by means of occlusion or embedding or embedding or depositing as the copper surface 1143. The foundation of the copper embedding layer 14 is deeply integrated into the inner surface 1143 of the flange through the deep surface 141 to strengthen the bonding force between the copper embedding layer 14 and the inner surface 1143 of the flange. Prevent the copper inserting layer 14 from peeling off from the inner surface 1143 of the flange. In this way, the through hole 114 of the aluminum fin set 11 is in contact with the first end 1211 of the copper heat pipe 121 through the contact surface 142 of the inner surface 1143 of the flange 1143 with the first end 1211 of the copper heat pipe 121 (for example, welded). Please continue to refer to FIG. 8, which is a schematic diagram of another alternative implementation of the heat pipe of the present invention. Although the front shows that two copper heat pipes 121 pass through from a single side of the aluminum fin group 11. But not limited thereto, in other alternative implementations, the heat sink structure 10 includes a plurality of copper heat pipes 121 (four are shown in the figure), and the aluminum fin group 11 has through holes 114 equal to the number of the copper heat pipes 121 and the grooves 115, and the copper heat pipes 121 are respectively staggered or non-staggered from the opposite sides of the aluminum fin set 11 and combined with the aluminum fin set 11, thus improving the heat sink structure 10 cooling efficiency. The present invention has been described in detail, but what is described above is only a preferred embodiment of the present invention, and should not limit the scope of the present invention. That is, all equivalent changes and modifications made according to the application scope of the present invention shall still fall within the scope of the patent of the present invention.

10: radiator structure 11: Aluminum fin group 111: Aluminum fins 1111: upper hem 1112: Bottom hem 11111, 11121: fastening part 113: bottom surface 114: through hole 1141: Hole flange 1142: corrugated structure 1143: Inner side of the flange 115, 115a: channel 1151: channel opening 1152, 1152a: the inner surface of the channel 116: top surface 117: Runner 121: copper heat pipe 1211: first end 1212, 1212a: second end 12121, 12121a: exposed surface of heat pipe 12122, 12122a: heat pipe contact surface 1213: U-shaped part 14: Copper insertion layer 141: deep face 142: contact surface 15: Copper heat conduction base 16: heating element

Figures 1A and 1B are three-dimensional decomposition and assembly diagrams of the present invention; Figure 1C is a schematic diagram of another perspective of the stereo combination of the present invention; Figure 1D is a schematic diagram of an inverted fin on the outermost side of the aluminum fin group of the present invention; Figure 2A is a schematic cross-sectional view of the aluminum fin group of the present invention; Figure 2B is a schematic cross-sectional view of the combination of aluminum fins and copper heat pipes of the present invention; Figure 3 is a schematic diagram of the implementation of the tight fit between aluminum fins and copper heat pipes of the present invention; Figures 4A and 4B are schematic diagrams before and after the aluminum fin assembly of the present invention is provided with a copper insertion layer; Fig. 5 is a schematic diagram of the joint of the bottom surface of the present invention with a heat conduction element; Fig. 6 is a schematic diagram of another alternative implementation of the present invention; Figures 7A to 7C are schematic diagrams of the combination of the through-holes of the aluminum fin group and the copper heat pipe of the present invention; Fig. 8 is a schematic diagram of another alternative implementation of the copper heat pipe of the present invention.

10: radiator structure

11: Aluminum fin group

111: Aluminum fins

113: bottom side

114: through hole

1141: Hole flange

1143: Inner side of the flange

115: channel

1151: channel opening

1152: Inner side of the channel

121: copper heat pipe

1211: first end

1212: second end

12121: Exposed surface of heat pipe

12122: heat pipe contact surface

1213: U-shaped part

14: Copper insertion layer

141: deep face

142: contact surface

Claims (7)

A radiator assembly with a heat pipe, comprising: At least one aluminum fin group, which is composed of a plurality of aluminum fins fastened and has a bottom surface and a top surface, and has a A channel, the bottom surface is provided with at least one channel, the channel has a channel opening and an inner surface of the channel, and each aluminum fin is provided with at least one through hole penetrating the aluminum fin, the through hole There is a through-hole flange protruding from one side of the aluminum fin, and the inner surface of the groove is used as a part to be combined with the aluminum fin group. A copper insert layer is provided, and the copper insert layer has a deep surface and a contact surface, the deep surface engages the inner side of the channel and penetrates into the inner side of the channel; At least one copper heat pipe has a first end and a second end respectively passing through the through hole and the channel of the aluminum fin group, and the first end is tightly fitted with the through hole flange, and the second end Contacting and combining with the contact surface of the copper insertion layer on the inner side of the channel. The radiator assembly with heat pipes as described in claim 1, wherein the second end of the at least one heat pipe has a heat pipe exposed surface and a heat pipe contact surface, the heat pipe exposed surface is exposed from the channel opening, the heat pipe The contact surface contacts and combines with the contact surface of the copper insertion layer inside the channel. The heat sink assembly with heat pipes as claimed in claim 1, wherein the through-hole flange ring is provided with a corrugated structure or a spine-like structure tightly bound on the outer surface of the first end. The heat sink assembly with heat pipes as described in Claim 1, wherein the bottom surface of the aluminum fin group is used as another part to be combined with the copper insertion layer. A radiator assembly with a heat pipe, comprising: At least one aluminum fin group is composed of a plurality of aluminum fins fastened and has a bottom surface and a top surface, and there is a flow channel between two adjacent aluminum fins, and the bottom surface is provided with at least one groove, The channel has a channel opening and an inner surface of the channel, and each aluminum fin is provided with at least one through hole passing through the aluminum fin, and the through hole has a through hole flange formed by one of the aluminum fins. The side protrudes and defines a flange inner surface, the channel inner surface and the flange inner surface are respectively used as a joint part of the aluminum fin group, and a copper inserting layer is provided with a deep surface and a contact surface , the deep surface is respectively combined with the inner surface of the channel and the inner surface of the flange and penetrates into the inner surface of the channel and the inner surface of the flange; At least one copper heat pipe has a first end and a second end respectively passing through the through hole and the channel of the aluminum fin group, and the first end is loosely combined with the through hole flange and is combined with the flange The contact surface of the copper insertion layer on the inner surface is contacted and combined, and the second end is contacted and combined with the contact surface of the copper insertion layer on the inner surface of the channel. The radiator assembly with heat pipes as described in claim 5, wherein the second end of the at least one heat pipe has a heat pipe exposed surface exposed from the slot opening, and a heat pipe contact surface with the inside of the slot The contact surfaces of the copper insert layers are bonded in contact. The heat sink assembly with heat pipes as described in Claim 5, wherein the bottom surface of the fin group is used as another part to be combined with the copper insertion layer.

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