Copper-aluminum composite radiator

Abstract

The utility model discloses a copper-aluminum composite radiator which comprises a substrate made of aluminum, a heat pipe made of copper is arranged on the lower surface of the substrate, and the heat pipe is in contact with a heat source installed on the lower surface of the substrate; and the heat dissipation fins are arranged on the upper surface of the substrate and extend and protrude upwards, and copper heat dissipation areas and aluminum heat dissipation areas are distributed on the heat dissipation fins. The radiator is made of the copper-aluminum composite material, the heat pipe made of the copper material is arranged on the substrate, so that heat of a heat source can be absorbed more quickly, and the copper material heat dissipation area is arranged on the heat dissipation fins, so that heat of the substrate can be absorbed more quickly; the aluminum part on the substrate and the aluminum radiating area on the radiating fins also absorb heat and can be quickly cooled, and the characteristics of copper and aluminum materials, good heat conductivity of the copper material and good radiating performance of aluminum are fully utilized, so that the product can achieve a better radiating effect; after the temperature of the heat source side is equalized in the heat pipe, the heat is quickly transferred to the fin end by using the high thermal conductivity of the copper material, and then the heat is dissipated by using the aluminum material.

Description

Technical Field

[0001] The utility model relates to the technical field of radiators, and more specifically to a copper-aluminum composite radiator. Background Art

[0002] The radiator, especially the heat dissipation shovel teeth, cools down the heat source through heat conduction. The heat of the heat source is absorbed by the heat dissipation shovel teeth. When air flows through the heat dissipation shovel teeth, it takes away the heat on the heat dissipation shovel teeth, thereby achieving the purpose of cooling.

[0003] Traditional heat dissipation shovel teeth are made of aluminum, and the thermal conductivity of aluminum is roughly 170~230w / m*k, which has good thermal conductivity.

[0004] The thermal conductivity of copper is roughly 390w / m*k; the larger the thermal conductivity, the better the thermal conductivity and the better the heat transfer effect, that is, the higher the thermal conductivity of copper, the faster it can absorb the heat from the heat source;

[0005] But the heat capacity of copper is 3.43 J / Gv; the heat capacity of aluminum is 2.42 J / Gv, which means that aluminum is easier to cool down under the same volume;

[0006] In summary, copper conducts heat about twice as fast as aluminum, but aluminum is about 1.5 times more efficient at cooling than copper in the same volume;

[0007] Therefore, in order to enable the heat dissipation shovel teeth to absorb the heat from the heat source more quickly and to cool down quickly, the applicant improved the existing technology and proposed a copper-aluminum composite radiator. Utility Model Content

[0008] In view of this, the utility model provides a copper-aluminum composite radiator.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] Copper-aluminum composite radiator, including:

[0011] A base plate made of aluminum, a copper heat pipe is arranged on the lower surface of the base plate, and the heat pipe is in contact with a heat source installed on the lower surface of the base plate;

[0012] The heat dissipation fins are arranged on the upper surface of the substrate and extend upwardly and protrude. The heat dissipation fins are provided with a copper material heat dissipation area and an aluminum material heat dissipation area.

[0013] As a preferred solution of the utility model, at least one copper material heat dissipation area and one aluminum material heat dissipation area are arranged on the heat dissipation fin.

[0014] As a preferred solution of the utility model, the copper material heat dissipation areas and the aluminum material heat dissipation areas on the heat dissipation fins are alternately distributed.

[0015] As a preferred solution of the present invention, the copper material heat dissipation area extends to the upper surface of the substrate, and the upper surface of the substrate is partially made of copper material.

[0016] As a preferred solution of the utility model, heat dissipation gaps are formed between the heat dissipation fins.

[0017] As a preferred solution of the utility model, a groove is provided on the lower surface of the substrate; the heat pipe is buried in the groove and is made into a flat shape; the heat pipe is flush with the lower surface.

[0018] As a preferred solution of the present utility model, the heat pipe is arranged in multiple sections.

[0019] It can be seen from the above technical scheme that compared with the prior art, the utility model has the following beneficial technical effects: the radiator of the utility model is made of copper-aluminum composite material, and a copper heat pipe is arranged on the substrate, which can absorb the heat of the heat source more quickly, and a copper heat dissipation area is arranged on the heat dissipation fin, which is also to absorb the heat of the substrate more quickly; the aluminum part on the substrate and the aluminum heat dissipation area on the heat dissipation fin also absorb heat and can quickly cool down, making full use of the characteristics of copper and aluminum materials, the good thermal conductivity of copper, and the good heat dissipation of aluminum, so that the heat dissipation of the product can achieve better effect; after the heat source side is evenly heated in the heat pipe, the heat is quickly transferred to the fin end using the high thermal conductivity of copper, and then the aluminum is used to dissipate the heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the utility model from another angle;

[0023] Figure 3 It is an exploded view of the utility model. DETAILED DESCRIPTION

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0025] Copper-aluminum composite radiator, please refer to Figure 1-3 As shown, it includes: a substrate 100 made of aluminum and heat dissipation fins 200 .

[0026] A heat pipe 110 made of copper is disposed on the lower surface 101 of the substrate 100 , and the heat pipe 110 is in contact with a heat source mounted on the lower surface 101 of the substrate 100 ;

[0027] The heat dissipation fins 200 are disposed on the upper surface 102 of the substrate 100 and extend upwardly and protrude. A copper material heat dissipation region 201 and an aluminum material heat dissipation region 202 are distributed on the heat dissipation fins 200 .

[0028] According to the existing technology, the thermal conductivity of aluminum is approximately 170-230w / m*k, and the thermal conductivity of copper is approximately 390w / m*k. The larger the thermal conductivity, the better the thermal conductivity and the better the heat transfer effect. Copper can absorb the heat from the heat source faster.

[0029] The heat capacity of copper is 3.43 J / Gv, and the heat capacity of aluminum is 2.42 J / Gv, which means that aluminum is easier to cool down under the same volume.

[0030] Therefore, the heat sink of the present invention adopts a combination of aluminum and copper. The copper on the substrate 100 and the heat dissipation fins 200 can quickly absorb the heat from the heat source, and use the high thermal conductivity of the copper to quickly transfer the heat to the fin end, and then use the aluminum to dissipate the heat, effectively improving the heat dissipation efficiency of the radiator.

[0031] In one embodiment, at least one copper material heat dissipation area 201 and one aluminum material heat dissipation area 202 are provided on the heat dissipation fin 200; half of the heat dissipation fin 200 can be designed as the copper material heat dissipation area 201, and the other half can be designed as the aluminum material heat dissipation area 202;

[0032] Alternatively, the copper material heat dissipation area 201 and the aluminum material heat dissipation area 202 on the heat dissipation fin 200 are alternately distributed;

[0033] like Figure 1 As shown, three copper material heat dissipation areas 201 are provided on the heat dissipation fin 200. The copper material heat dissipation areas 201 are as shown in FIG. Figure 1 In the middle black shaded part, the aluminum heat dissipation area 202 and the copper heat dissipation area 201 are alternately distributed. The copper heat dissipation area 201 is made of copper material, which has high thermal conductivity and can quickly absorb heat from the heat source on the substrate 100, and then quickly transfer the heat to the aluminum heat dissipation area 202. The aluminum heat dissipation area 202 is made of aluminum material and has a fast cooling speed. Rapid cooling is achieved when the airflow flows through the heat dissipation fins 200.

[0034] Optionally, the number and shape of the copper material heat dissipation areas 201 may be changed.

[0035] Furthermore, the copper material heat dissipation area 201 extends to the upper surface 102 of the substrate 100 , and the upper surface 102 of the substrate 100 is partially made of copper material to better absorb the heat on the substrate 100 .

[0036] A heat dissipation gap is formed between the heat dissipation fins 200 . When air flows through the heat dissipation gap, the contact area between the heat dissipation fins 200 and the air flow is increased, thereby effectively improving the heat dissipation efficiency.

[0037] In one embodiment, the lower surface 101 of the substrate 100 is provided with a groove 1011; the heat pipe 110 is buried in the groove 1011 and is made into a flat shape; the heat pipe 110 is flush with the lower surface 101, and the heat pipe 110 is provided in multiple sections;

[0038] The heat pipe 110 is flush with the lower surface 101 so that the heat source can fully contact the heat pipe 110 when it is mounted on the lower surface 101 of the substrate 100 ;

[0039] The heat pipe 110 is divided into multiple sections and evenly distributed on the lower surface 101 of the substrate 100 . The heat of the heat source is effectively and evenly distributed on the substrate 100 through the heat pipe 110 , and is quickly transferred upward to the heat dissipation fins 200 .

[0040] When manufacturing the copper-aluminum composite heat sink, copper and aluminum materials can be mixed and injection-molded into a rectangular substrate, and heat sink fins are scooped up on the surface of the substrate to form alternating copper heat sink areas 201 and aluminum heat sink areas 202 on each heat sink.

[0041] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Copper-aluminum composite radiator, characterized by: include: A substrate (100) made of aluminum, a lower surface (101) of the substrate (100) being provided with a heat pipe (110) made of copper, the heat pipe (110) being in contact with a heat source mounted on the lower surface (101) of the substrate (100); The heat dissipation fin (200) is arranged on the upper surface (102) of the substrate (100) and extends and protrudes upwards. A copper material heat dissipation area (201) and an aluminum material heat dissipation area (202) are distributed on the heat dissipation fin (200).

2. The copper-aluminum composite radiator according to claim 1 is characterized in that: At least one copper material heat dissipation area (201) and one aluminum material heat dissipation area (202) are arranged on the heat dissipation fin (200).

3. The copper-aluminum composite radiator according to claim 1 is characterized in that: The copper material heat dissipation areas (201) and the aluminum material heat dissipation areas (202) on the heat dissipation fins (200) are distributed alternately.

4. The copper-aluminum composite heat sink according to any one of claims 1 to 3, characterized in that: The copper material heat dissipation area (201) extends to the upper surface (102) of the substrate (100), and the upper surface (102) of the substrate (100) is partially made of copper material.

5. The copper-aluminum composite radiator according to claim 4 is characterized in that: Heat dissipation gaps are formed between the heat dissipation fins (200).

6. The copper-aluminum composite radiator according to claim 4, characterized in that: The lower surface (101) of the substrate (100) is provided with a groove (1011); the heat pipe (110) is buried in the groove (1011) and the heat pipe (110) is made into a flat shape; the heat pipe (110) is flush with the lower surface (101).

7. The copper-aluminum composite radiator according to claim 6, characterized in that: The heat pipe (110) is arranged in sections to have multiple sections.

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