TWM629047U - Radiator assembly with heat pipe - Google Patents

Abstract

A radiator assembly with heat pipes, comprising: at least one aluminum fin group and at least one copper heat pipe of different materials, the aluminum fin group includes at least one part to be combined (such as through holes and/or grooves) Road) is provided with a copper intercalation layer for contact and bonding with the copper heat pipe, thereby promoting the combination of aluminum fin sets of different materials and the copper heat pipe and improving the surface eutectic grain of the aluminum fin set problems and environmental pollution problems caused by electroless nickel plating.

Description

Radiator assembly with heat pipe

The present invention relates to a radiator, especially a radiator assembly with a heat pipe which is provided with a copper embedded layer on the part to be combined of the aluminum radiator for combining with the copper heat pipe.

Press, heat sinks or fins are usually used to dissipate the heat generated in the heating element or system to the outside air by heat exchange; and in the case of low thermal resistance, it shows that the heat sink has higher heat dissipation efficiency. Generally speaking, the thermal resistance is composed of the diffusion thermal resistance inside the heat sink and the convection thermal resistance between the surface of the heat sink and the atmospheric environment. At present, a more efficient heat dissipation mechanism uses a combination of heat pipes with high thermal conductivity and fins of the heat sink to effectively solve the heat dissipation problem.

Generally, a heat dissipation module with heat pipes 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, an upper folded edge and a lower folded edge which are aligned with each other. The upper folded edge and the lower folded edge are respectively provided with at least one buckling portion, and each fin is fastened to the buckling portion of the adjacent fin by the buckling portion to form a finned heat sink or heat dissipation fin The upper folded edges of the fins together form a top side of the radiator, and the lower folded edges together form a bottom side of the radiator.

Furthermore, the peripheral edge of the fin through-hole protrudes from one side to the other side 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 is extended to the bottom side of the radiator or the heat dissipation fin group or matched with a base.

Generally speaking, the combination of the through holes of the fins and one end of the heat pipe is usually a tight fit or a loose fit. The outer diameter of one end causes an interference bond between the two. In addition, the fins are heated by means of thermal expansion and cold contraction so that the inner diameter of the through-hole flange is 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, the fin is cooled to make the through-hole flange's inner diameter slightly larger. The inner diameter is retracted to its original size to fit tightly into the heat pipe.

In addition, the conventional loose-fit bonding 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 of setting 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 packing hole at the edge of the through hole, and set the medium on the packing inside the hole. During processing, heating makes the medium melt and spread evenly between the outer surface of the heat-conducting pipe and the inner edge of the through hole to fill the gap.

In addition, the tight-fitting combination method also uses a bunching device to press 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 protruding portion and the concave portion are tightly bound to the outer surface of one end of the heat pipe, and are radially squeezed toward the heat pipe to deform the outer surface of the heat pipe, thereby interfering with the outer surface of the heat pipe, so that the through-hole flange and the The heat pipes are tightly bound 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 lower cost, usually the fins, radiators or bases are made of light-weight and low-cost aluminum materials, and the heat pipes use Made of high thermal conductivity metals (such as brass or aluminum, nickel, stainless steel, etc.).

Although the use of aluminum material instead of copper material can improve the weight of copper and the high cost of materials, other problems arise, such as the aluminum surface is easily oxidized, and high melting point oxides are formed during the welding process, making it difficult for the weld metal. Complete fusion brings difficulties to welding. If copper and aluminum are directly welded, the parts where the two materials are directly butted are prone to cracks after welding due to their large brittleness, and when copper and aluminum are welded, close to the copper material. Eutectic such as CuAl2 is easy to form in the weld on this side, while CuAl2 etc. The eutectic structure is only distributed near the grain boundaries of the material, which is prone to fatigue or cracks between the grain boundaries, and because the melting point temperature and eutectic temperature of copper and aluminum are quite different, in the fusion welding operation, when the aluminum melts, Copper remains solid, and when copper melts, aluminum has melted so much that it cannot coexist in a eutectic or eutectic state, making welding more difficult. In addition, due to the good thermal conductivity of copper and aluminum, the molten pool metal crystallizes quickly during welding, and the metallurgical reaction gas at high temperature does not have time to escape, and the welding seam is prone to pores, so copper and aluminum cannot be directly welded. The surface of the aluminum material must be surface-modified for subsequent welding with copper or other materials.

In particular, in order to improve the above-mentioned conventional problem that aluminum material is used instead of copper material and cannot be directly welded with copper or other dissimilar materials, electroless nickel plating (ie electroless nickel plating) is used as a technical method for surface modification. Generally speaking, there are three types of electroless nickel plating (ie, electroless nickel plating): low phosphorus, medium phosphorus, and high phosphorus. The biggest difference from electroplating is that the working environment is under the condition of no current, and the reducing agent in the solution is used. Metal ions are reduced, and the surface of the test piece must be catalyzed before electroless nickel plating. Electroless nickel plating solution can be divided into the following three types: (1) Activation sensitization + acid plating bath pH value between 4 and 6 belongs to acid plating solution, which is characterized by less loss of components caused by evaporation, although the operation The temperature is high, but the plating solution is safe and easy to control, with high phosphorus content and high plating rate, and is often used in the industry. (2) Activation sensitization + alkaline plating solution The pH value of the alkaline plating bath is between 8 and 10. Because the ammonia water that adjusts the pH value is easy to volatilize, it is necessary to supplement the ammonia water in time to maintain the stability of the pH value during operation. The amount is less, the plating solution is less stable, and the operating temperature is lower. (3) HPM+Alkaline plating bath HPM is to immerse the silicon wafer in a mixture of DI-water:H2O2(aq):HCl(aq)=4:1:1 and use the oxide layer formed on the surface of the silicon wafer to replace the sensitization activated, forming an autocatalytic surface on the surface.

However, a large amount of chemical reaction liquid needs to be used in the process of electroless nickel plating (ie, electroless nickel plating), and a large amount of industrial waste liquid containing heavy metals or chemical substances will be generated after the electroless nickel plating process, and the industrial waste liquid There will be a lot of waste water containing yellow phosphorus and other toxic substances that cannot be recycled. Moreover, yellow phosphorus containing 50~390mg/L concentration of yellow phosphorus in sewage is a highly toxic substance, which is extremely harmful to the liver and other organs when it enters the human body. Long-term drinking of phosphorus-containing water can cause osteoporosis and other diseases such as mandibular necrosis. Therefore, 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 that improves the inability of aluminum materials to be welded with other dissimilar materials, and is beneficial to welding operations and does not generate additional environmental pollutants. , is the first priority at this stage.

Therefore, how to solve the above-mentioned problems and deficiencies is the direction that the creator of this case and the relevant manufacturers engaged in this industry are eager to research and improve.

In order to improve the above-mentioned problems, an object of the present invention is to provide a method for disposing a copper intercalation layer on at least one part of the aluminum fin group to be combined between components composed of different materials of copper and aluminum. Contact with the copper heat pipe, so that different components composed of different materials of copper and aluminum can be directly welded. Environmentally friendly effect, and improve the conventional problem of forming eutectic.

One of the objectives of the present invention is to provide a method to form a copper intercalation layer on the part to be combined of the aluminum fin set with either or both of the copper heat pipe or the base, so that the aluminum fin set is not The heat sink assembly with heat pipe can be combined with copper heat pipe or copper base by electroless nickel plating process, thereby reducing the overall weight of the structure, reducing the thermal resistance of the joint and improving the heat conduction efficiency.

In order to achieve the above-mentioned purpose, the present invention provides a radiator assembly with a heat pipe, which includes: at least one aluminum fin group, which is composed of a plurality of aluminum fins in a buckled combination and has a bottom surface and a top surface, and There is a flow channel between two adjacent aluminum fins, the bottom surface is provided with at least one channel, and the channel has a channel The opening and the inner side of a channel, and each aluminum fin is provided with at least one through hole, the through hole has a through-hole flange protruding from one side of the aluminum fin, and the inner side of the channel serves as a through hole. A copper intercalation layer with a deep surface and a contact surface is formed at a part to be combined of the aluminum fin set and the heat pipe, and the deep surface of the interposed layer is combined with the inner side of the channel and penetrated into the Below the inner side surface 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 and the through hole flange The second end is in contact and combined with the contact surface of the copper embedded layer on the inner side of the channel.

The second end of the at least one copper heat pipe has a heat pipe exposed surface exposed from the opening of the channel, and a heat pipe contact surface is in contact with the contact surface of the copper embedded layer inside the channel and is bonded by welding .

The aforementioned through-hole flange ring is provided with a corrugated or spine-like structure tightly bound to the outer surface of the first end.

The bottom surface of the aforementioned fin set is provided with the copper intercalation layer as another part to be combined of the fin set.

The present invention further provides a radiator assembly with a heat pipe, which includes: at least one aluminum fin group with a bottom surface and a top surface, a flow channel 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 side 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 from the aluminum fin One side of the sheet protrudes and defines an inner side of a flange. The inner side of the channel and the inner side of the flange are respectively used as a part of the aluminum fin group to be combined with a copper embedded layer. The copper The embedded layer has a deep surface and a contact surface, and the deep surface is respectively combined with the inner side of the channel and the inner side of the flange and penetrates into the inner side of the channel and the inner side of the flange; at least one copper The heat pipe has a first end and a second end respectively passing through the aluminum fin set The through-hole and the channel, the first end is loosely combined with the through-hole flange and is in contact with the contact surface of the copper embedded layer on the inner side of the flange for welding, the second end is connected with the The contact surface of the copper intercalation layer on the inner side of the channel also joins the two by soldering.

The second end of the at least one 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 embedded layer on the inner side of the channel.

The bottom surface of the aforementioned fin set is provided with the copper intercalation layer as another part to be combined of the fin set.

10: Radiator structure

11: Aluminum fin set

111: Aluminum fins

1111: top fold

1112: Bottom fold

11111, 11121: Buckle part

113: Underside

114: Through hole

1141: Through-hole flange

1142: Corrugated Structure

1143: Flange inner side

115, 115a: channel

1151: Channel opening

1152, 1152a: inner side 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: In-depth face

142: Contact surface

15: Copper heat conduction base

16: Heating element

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

The above-mentioned purpose of the present invention and its structural and functional characteristics will be described with reference to the preferred embodiments of the accompanying drawings.

Please refer to Figure 1A for an exploded perspective view of the creation; Figure 1B for the three-dimensional composition of the creation; Figure 1C for another perspective view of the three-dimensional composition for the creation; Figure 1D for the outermost setting of the aluminum fin set A schematic diagram of an outer fin with a snap connection; Figure 2A is a schematic cross-sectional view of the aluminum fin set; Figure 2B is a cross-sectional schematic diagram of the combination of the aluminum fin set and the copper heat pipe. As shown in the figure, a heat sink 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 defines at least one groove The channel 115, in this embodiment, represents two channels 115, the channel 115 has a channel opening 1151 cut in the bottom surface 113, and a channel inner side surface 1152 is concave in the direction opposite to the bottom surface 113, and the bottom surface 113 and the inner side surface 1152 of the channel are respectively used as a part to be combined with the fin set 11 and other copper parts (details will be described later).

In detail, the aluminum fin set 11 is composed of a plurality of aluminum or aluminum alloy fins 111 which are fastened horizontally or vertically, and there is 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 to align with the upper folded edge 1111 and the lower folded edge 1112 of another adjacent aluminum fin 111 , and the upper folded edge 1111 and the lower folded edge 1112 The folded edge 1111 and the lower folded edge 1112 are respectively provided with at least one buckling portion 11111, 11121. Although the buckling portion 11111, 11121 shows a concave-convex matching 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 parts 11111 and 11121 of the adjacent aluminum fins 111 by the fastening parts 11111 and 11121 to form a heat sink structure of a fastened fin.

In this way, the upper folded edges 1111 together constitute the top surface 116 of the aluminum fin set 11 , and the lower folded edges 1112 together constitute the bottom surface 113 of the fin set 11 . Furthermore, the lower edge 1112 of each aluminum fin 111 is provided with at least one groove. After the aluminum fins 111 are fastened, the grooves are aligned with each other to form the channel on the bottom surface 113 . 115. Each of the aforementioned aluminum fins 111 is provided with a penetrating At least one through-hole 114, the through-holes 114 are aligned with each other, the through-hole 114 has a through-hole flange 1141 surrounding an edge of the through-hole 114 and protruding from one side of the aluminum fin 111 (in the figure , represents a front side of the fin 111 ) and defines a flange inner side 1143 . In addition, it is not limited to this, and the aluminum fin group 11 can also be arranged in a vertical snap connection. Furthermore, an inverted aluminum fin 111 is disposed on the outermost side of the aluminum fin group 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 material includes copper and copper alloys. In detail, the copper heat pipe 121 (for example, a circular, D-shaped, or flat heat pipe) has a first end 1211 and a second end 1212, and the first end 1211 penetrates through the through hole 114 and the through hole 1212. The hole flange 1141 is tightly fitted (for example, the inner diameter of the inner surface 1143 of the flange 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, resulting in an interference combination between the two, or the use of thermal expansion and cold contraction means. 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 The second end 1212 extends to the bottom surface 113 of the fin set 11 and penetrates through the channel 115 . The second end 1212 has a heat pipe exposed surface 12121 corresponding to the opening 1151 of the channel, and a heat pipe contact surface 12122 facing the inner side surface 1152 of the channel.

In the present invention, a U-shaped portion 1213 is provided between the first end 1211 and the second end 1212 , and the U-shaped portion 1213 extends from the first end 1211 to the second end 1212 . The first end 1211 of the copper heat pipe 121 is used as the condensation end, 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, and the at least one capillary structure is, for example, The capillary structure extends from the first end 1211 to the second end 1212 by any one or a combination of grooves, powder sintered bodies, mesh bodies, fiber bodies, and corrugated plates.

Furthermore, although the figure shows that the cross section of the first end 1211 of the copper heat pipe 121 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 (for example, the plane is realized by machining means such as jig flattening or milling with a milling cutter), and is aligned with the bottom surface 113 of the aluminum fin group 11 . But not limited to this, 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 annularly 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 forms an interference bond. Specifically, after the first end 1211 of the copper heat pipe 121 is inserted into the through hole 114, a bunching device is used to press the through hole flange 1141 to form the corrugated (or spine-like) structure 1142. , through the corrugated (or spine) structure 1142 having a plurality of continuous concave parts and convex parts staggered around the radial direction of the through-hole flange 1141 , and extruding radially 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 to prevent the copper heat pipe 121 from pulling away from the transparent hole 114.

Please continue to refer to Figures 4A and 4B for the schematic diagrams before and after the creation of the fin set with the copper intercalation layer. As shown in the figures, referring back to Figures 1A-1B and 2A-2B, the inner side surface 1152 of the channel and the bottom surface 113 of the aluminum fin group 11 are respectively used as a part to be combined with a copper embedded layer. (copper embedding layer) 14, the copper embedding layer 14 has a deepening surface 141 and a connecting surface 142 respectively disposed on opposite sides of the copper embedding layer 14, the deepening surface 141 is bonded (eg, snapped or embedded or embedded or deposited) the inner side surface 1152 of the channel and the bottom surface 113, and the contact surface 142 is used as the exposed surface of the copper intercalation layer 14 to contact and bond with other components. In some possible implementations, the copper intercalation layer 14 is made of copper sheet or copper foil or copper powder or liquid copper after mechanical processing (eg Such as air pressure, hydraulic pressure, stamping or oil pressure extrusion or hammering) or surface treatment process (spraying, electroplating or printing) or chemical processing (such as electroplating, anodizing) combined on the inner side surface 1152 of the channel and the bottom surface 113 , and part of the copper embedded layer 14 is directly engaged or embedded or embedded or deposited on the inner side surface 1152 and the bottom surface 113 of the channel during the bonding process to deepen and form the deepening surface 141 (to deepen and form the deepening surface 141). surface 141).

In this way, the copper intercalation layer 14 is not only bonded to the inner side surface 1152 and the bottom surface 113 of the channel, but also the deep surface 141 penetrates into the inner side surface 1152 of the channel and the inner surface 1152 by engaging or embedding or embedding or depositing. The inside of the bottom surface 113 is used as the foundation of the copper embedded layer 14 to enhance the bonding force (strength) of the copper embedded layer 14 with the inner side surface 1152 of the channel and the bottom surface 113, and can prevent the copper embedded layer. 14 is peeled off from the inner side surface 1152 of the channel and the bottom surface 113 .

With the above arrangement, the channel 115 of the aluminum fin group 11 is in contact with the heat pipe contact surface of the second end 1212 of the copper heat pipe 121 through the contact surface 142 of the copper insertion layer 14 on the inner side surface 1152 of the channel. 12122 contact bonding (for example, solder is provided between the contact surface 142 of the copper intercalation layer 14 and the heat pipe contact surface 12122 of the copper heat pipe 121 and then soldered, or ultrasonic welding or laser welding), thereby The aluminum fin group 11 can be welded and combined with the copper heat pipes 121 of different materials without going through an electroless nickel plating process.

Please continue to refer to Figure 5, which is a three-dimensional schematic diagram of the bottom surface of the creation being joined to 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 vapor 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 via the contact surface 142 of the copper intercalation layer 14 (eg, welded), and the exposed heat pipe 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 bonded (eg, welded), thereby eliminating the need for the aluminum fin sets 11 of different materials After an electroless nickel plating process, it can be welded and combined with the copper heat conduction base 15 . Furthermore, the heat sink structure 10 does not produce toxic substances during the manufacturing process, thus achieving the effect of environmental protection and improving the conventional problem of eutectic formation.

Please continue to refer to FIG. 6 for a schematic diagram of another alternative implementation of the present creation. Although the copper intercalation layer 14 is described above as being combined with the inner side surface 1152 of the channel and the bottom surface 113 , it is not limited to this. A single channel 115 a is provided at the approximate center of the bottom surface 113 of the aluminum fin group 11 in other implementations. The inner side surface 1152a of the channel is arranged to be straight, and the copper insertion layer 14 is bonded to the inner side surface 1152a of the channel. The second ends 1212a of the plurality of copper heat pipes 121 (three are shown 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 surfaces 12122a of the second ends 1212a of the copper heat pipes 121 form a coplanar to match the inner side surface 1152a of the channel, and the copper embedded layer is formed. The contact surface 142 of 14 is contact bonded (eg, welded, or ultrasonic or laser welded). Furthermore, the exposed heat pipe surfaces 12121a of the second ends 1212a of the copper heat pipes 121 form 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 for the schematic diagram of the loose combination of the through hole and the copper heat pipe of the aluminum fin set. Although it is shown above that the first end 1211 of the copper heat pipe 121 is tightly coupled with the through-hole flange 1141 , it is not limited to this. In another alternative implementation, the first end 1211 of the copper heat pipe 121 penetrates through the through hole 114 and is loosely coupled to the through hole flange 1141 (that is, the inner diameter of the inner flange 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 side surface 1143 of the flange is also used as another part to be combined with the fin group 11, and the copper embedding layer 14 is not only disposed in the groove The inner side surface 1152 and the bottom surface 113 are also arranged on the inner side surface 1143 of the flange, and the deepening surface 141 is further bonded to the inner side surface 1143 of the flange by engaging or embedding or burying or depositing as the copper The foundation of the mass-inserted layer 14 is deeply integrated into the flange through the deep surface 141 Inside the side surface 1143 to strengthen the bonding force between the copper embedding layer 14 and the inner side surface 1143 of the flange to prevent the copper embedding layer 14 from peeling off from the inner side 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 copper insert layer 14 on the inner side surface 1143 of the flange (eg, welded).

Please continue to refer to FIG. 8 for a schematic diagram of another alternative implementation of the created heat pipe. Although it is shown above that two copper heat pipes 121 pass through one side of the aluminum fin group 11 . But not limited to this, 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 defines through holes 114 equal to the number of the copper heat pipes 121 . and the channel 115, and the copper heat pipes 121 are respectively staggered or non-staggered through the opposite sides of the aluminum fin group 11 and combined with the aluminum fin group 11, so as to improve the heat sink structure 10 heat dissipation efficiency.

This creation has been described in detail, but the above is only a preferred embodiment of this creation, and should not limit the scope of this creation. That is, all equivalent changes and modifications made in accordance with the scope of the application of this creation shall still fall within the scope of the patent of this creation.

10: Radiator structure

11: Aluminum fin set

111: Aluminum fins

113: Bottom side

114: Through hole

1141: Through-hole flange

1143: Flange inner side

115: Channel

1151: Channel opening

1152: Inner side of channel

121: Copper heat pipe

1211: First End

1212: Second end

12121: Heat pipe exposed surface

12122: Heat pipe contact surface

1213: U-shaped part

14: Copper Insertion Layer

141: In-depth face

142: Contact surface

Claims (7)

A radiator assembly with a heat pipe, comprising: at least one aluminum fin group, which is formed by a plurality of aluminum fins and has a bottom surface and a top surface, and has a bottom surface and a top surface between two adjacent aluminum fins. A flow channel, the bottom surface is provided with at least one channel, the channel has a channel opening and an inner side surface of the channel, and each aluminum fin is provided with at least one through hole passing through the aluminum fin, the through hole There is a through-hole flange protruding from one side of the aluminum fin, the inner side of the channel as a part to be combined with the aluminum fin group is provided with a copper embedded layer, and the copper embedded layer has a deep surface and a contact surface, the deep surface is combined with 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 penetrating the aluminum fin The through-hole and the channel of the sheet set, the first end is tightly fitted with the through-hole flange, and the second end is in contact with the contact surface of the copper embedded layer on the inner side of the channel. The radiator assembly with heat pipes as claimed 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, and the heat pipe The contact surface is in contact with the contact surface of the copper intercalation layer inside the channel. The heat sink assembly with heat pipes of claim 1, wherein the through-hole flange ring has a corrugated structure or a spine-like structure tightly bound to the outer surface of the first end. The radiator assembly with heat pipes as claimed in claim 1, wherein the bottom surface of the aluminum fin group is provided with the copper interlayer as another part to be joined. A radiator assembly with a heat pipe, comprising: At least one aluminum fin group is formed by a plurality of aluminum fins buckled 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 channel, The channel has a channel opening and an inner side 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 a hole of the aluminum fin. The side protrudes and defines an inner side of a flange. The inner side of the channel and the inner side of the flange are respectively used as a part to be combined with the aluminum fin group. A copper embedded layer has a deep surface and a contact surface. , the deep surface is respectively combined with the inner side of the channel and the inner side of the flange and penetrates into the inner side of the channel and the inner side of the flange; at least one copper heat pipe has a first end and a second end respectively penetrate the through hole and the channel of the aluminum fin set, and the first end is loosely combined with the through hole flange and is in contact with the contact surface of the copper embedded layer on the inner side of the flange, The second end is in contact with the contact surface of the copper intercalation layer on the inner side of the channel. The heat sink assembly with heat pipes as claimed in claim 5, wherein the second end of the at least one heat pipe has a heat pipe exposed surface exposed from the opening of the channel, and a heat pipe contact surface with the inner surface of the channel The contact surfaces of the copper intercalation layer are contact-bonded. The radiator assembly with heat pipes as claimed in claim 5, wherein the bottom surface of the fin group is provided with the copper insert layer as another part to be joined.

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