Copper-aluminum composite heat pipe radiator

Abstract

The utility model belongs to the technical field of heat pipe radiators, and particularly relates to a copper-aluminum composite heat pipe radiator which comprises a substrate, a plurality of heat pipes and radiating fins, one side of the substrate is fixedly connected with the heat pipes, the other side of the substrate is connected with a heating element, and the heat pipes are all connected with the radiating fins in a penetrating mode. The substrate comprises an aluminum substrate and a copper substrate, and the aluminum substrate is fixedly connected with the copper substrate; the aluminum substrate is provided with a groove, and the copper substrate is arranged in the groove. The heating element has the advantages that the split substrate structure is adopted, the position of the copper substrate can be designed according to the position of the heating element with large heat flux density, and the heat dissipation efficiency of the heating element is improved through the high heat conductivity of the copper substrate.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat pipe radiators, and in particular relates to a copper-aluminum composite heat pipe radiator. Background Technology

[0002] In recent years, due to the booming development of the rail locomotive industry, there has been a continuous pursuit of lightweight, miniaturization, and high performance in automotive radiators. Existing profile radiators can no longer meet the performance requirements of automotive radiators.

[0003] Against this backdrop, heat pipe radiators have seen rapid development. To further enhance the heat dissipation effect of radiators, some manufacturers have begun to focus on aspects such as the number and shape of fins to improve the overall heat dissipation performance of the radiator.

[0004] For example, in the prior art, patent application number 201620554443.X describes a heat pipe radiator for high-power flat-plate thyristor devices; patent application number 202021336255.2 describes an aluminum-based explosion-proof heat pipe radiator. The heat dissipation structure of this type of heat pipe radiator consists of an aluminum substrate (for mounting the heating element), heat pipes, and aluminum fins, typically connected by welding. This structure can meet the heat dissipation requirements of most rail vehicle heating elements, but the following problems still arise:

[0005] 1. Aluminum sheets are relatively soft, have poor strength, and are easily deformed;

[0006] 2. Aluminum has limited thermal conductivity, which cannot fully meet the heat dissipation requirements of heating elements in rail vehicles;

[0007] 3. Some heat-generating components have a high heat flux density, and the aluminum substrate alone cannot meet the heat dissipation requirements. Summary of the Invention

[0008] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a copper-aluminum composite heat pipe radiator to improve the heat dissipation effect of heating elements with high heat flux density and improve heat dissipation efficiency.

[0009] To achieve the above objectives, this utility model employs the following technical solution:

[0010] A copper-aluminum composite heat pipe radiator includes a substrate, heat pipes, and heat sinks. One side of the substrate is fixedly connected to several heat pipes, and the other side is connected to a heat-generating element. All heat pipes are connected through the heat sinks. The substrate includes an aluminum substrate and a copper substrate, and the aluminum substrate and the copper substrate are fixedly connected. The aluminum substrate has a groove, and the copper substrate is disposed in the groove.

[0011] The aluminum substrate and the copper substrate are welded and fixed together.

[0012] The aluminum substrate and the copper substrate are fixedly connected by screws.

[0013] The copper substrate is provided with screw holes, which are blind holes.

[0014] The aluminum substrate and the copper substrate each have several mounting slots on one side, and the other side of the aluminum substrate and the other side of the copper substrate are both planar structures and are on the same plane.

[0015] The aluminum substrate, copper substrate, and heat pipe are welded and fixed together.

[0016] The substrate is provided with several mounting holes.

[0017] The heat sinks are arranged in parallel to each other.

[0018] The aluminum substrate is made of aluminum plate, and the copper substrate is made of copper plate.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model adopts a split substrate structure, and the position of the copper substrate can be designed according to the position of the heating element with a large heat flux density, thereby improving the heat dissipation efficiency of the heating element by utilizing the high thermal conductivity of the copper substrate.

[0021] 2. The substrate of this utility model is made of aluminum and copper. A groove is cut on the aluminum substrate directly below the high heat flux density element, and a copper substrate of the same size as the groove is embedded in it and fixed with screws. The two are then welded together to achieve accurate fixation of the copper substrate and enhance the heat dissipation effect of the heat-generating element.

[0022] 3. The substrate is partially made of copper, which is harder than aluminum. The screw holes on it can withstand greater torque, are less prone to damage, and ensure connection strength.

[0023] 4. This utility model is applicable to confined spaces such as cabinets with limited heat dissipation space, enhancing the local heat dissipation capacity of the radiator, and its heat dissipation performance is superior to that of aluminum radiators. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the aluminum substrate structure. Figure 1 .

[0026] Figure 3 This is a schematic diagram of the aluminum substrate structure. Figure 2 .

[0027] Figure 4 This is a schematic diagram of the copper substrate structure.

[0028] Figure 5 This is the front view of the copper substrate.

[0029] Figure 6 This is a rear view of the copper substrate.

[0030] In the diagram: 1-Aluminum substrate; 2-Copper substrate; 3-Heat pipe; 4-Heat sink; 5-Groove; 6-Screw hole; 7-Mounting hole; 8-Counterhole; 9-Mounting slot. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings. However, it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0032] See Figures 1-6 A copper-aluminum composite heat pipe radiator includes a substrate, heat pipes 3, and heat sinks 4. One side of the substrate is fixedly connected to several heat pipes 3, and the other side is connected to a heating element. All heat pipes 3 are connected through the heat sinks 4. The substrate includes an aluminum substrate 1 and a copper substrate 2, and the aluminum substrate 1 and the copper substrate 2 are fixedly connected. The aluminum substrate 1 is provided with a groove 5, and the copper substrate 2 is disposed in the groove 5.

[0033] Furthermore, the aluminum substrate 1 is welded and fixed to the copper substrate 2.

[0034] Furthermore, the aluminum substrate 1 and the copper substrate 2 are fixedly connected by screws.

[0035] Furthermore, the copper substrate 2 is provided with screw holes 6, which are blind holes.

[0036] Furthermore, several mounting grooves 9 are formed on one side of the aluminum substrate 1 and one side of the copper substrate 2. The other side of the aluminum substrate 1 and the other side of the copper substrate 2 are both planar structures and are on the same plane.

[0037] Furthermore, the aluminum substrate 1, copper substrate 2, and heat pipe 3 are welded and fixed together.

[0038] Furthermore, the substrate is provided with several mounting holes 7.

[0039] Furthermore, the heat sinks 4 are arranged in parallel to each other.

[0040] Furthermore, the aluminum substrate 1 is made of aluminum plate, and the copper substrate 2 is made of copper plate.

[0041] Example 1

[0042] See Figures 1-6A copper-aluminum composite heat pipe radiator includes a substrate, heat pipes 3, and heat sinks 4. The substrate has several mounting holes 7 for mounting heating elements. One side of the substrate is fixedly connected to several heat pipes 3, and the other side is connected to the heating elements. All heat pipes 3 are connected through the heat sinks 4. The substrate includes an aluminum substrate 1 and a copper substrate 2, which are fixedly connected. The aluminum substrate 1 has a groove 5, the position of which is the same as the mounting position of the heating element with a high heat flux density. The copper substrate 2 is disposed within the groove 5. The aluminum substrate 1 is made of aluminum plate, and the copper substrate 2 is made of copper plate.

[0043] The aluminum substrate 1 and the copper substrate 2 are fixedly connected by screws to ensure precise positioning. The copper substrate 2 has screw holes 6, which are blind holes; the aluminum substrate 1 has countersunk holes 8 corresponding to the screw holes 6 for connecting the screws, ensuring the top surface of the screw head is aligned with the surface of the aluminum substrate 1. The aluminum substrate 1 and the copper substrate 2 are then welded together to improve heat dissipation efficiency.

[0044] The aluminum substrate 1, copper substrate 2, and heat pipe 3 are welded and fixed together. Several mounting grooves 9 are formed on one side of the aluminum substrate 1 and one side of the copper substrate 2 for welding the heat pipe 3. The other side of both the aluminum substrate 1 and the copper substrate 2 are planar structures on the same plane, with mounting holes 7 for mounting heating elements. Furthermore, the grooves 5 on the aluminum substrate 1 can be stepped, with the area of ​​the planar structure side larger than the area of ​​the side with the mounting grooves 9, facilitating the positioning of the copper substrate 2 during installation.

[0045] Example 2

[0046] Based on Example 1, see Figure 1 The heat sink fins 4 of the copper-aluminum composite heat pipe radiator are arranged parallel to each other. The heat sink fins 4 are welded to the heat pipe 3 or interference-fitted. The heat pipe 3 can be L-shaped, with the evaporation section welded to the substrate and the condensation section connected to the heat sink fins 4.

[0047] When assembling the copper-aluminum composite heat pipe radiator, first place the copper substrate 2 into the groove 5 of the aluminum substrate 1, with a clearance fit. Connect the two substrates using screws that pass through the countersunk hole 8 of the aluminum substrate 1 and the screw hole 6 of the copper substrate 2. After the copper substrate 2 and aluminum substrate 1 are fixedly connected, align their mounting grooves 9. Weld the heat pipes 3 onto the mounting grooves 9, and then install the heat sinks 4 one by one onto the heat pipes 3. During use, install the heating elements onto the substrate through the mounting holes 7. Heating elements with higher heat flux density are installed on the copper substrate 2.

[0048] The advantages of this utility model are:

[0049] 1. The separate substrate structure allows for the design of the copper substrate 2 position based on the location of the heating element with higher heat flux density, thereby improving the heat dissipation efficiency of the heating element by utilizing the high thermal conductivity of the copper substrate 2.

[0050] 2. The substrate is made of both aluminum and copper. A groove is cut into the aluminum substrate 1 directly below the high heat flux density element, and a copper substrate 2 of the same size as the groove is embedded in it. The copper substrate 2 is positioned by screws and then fixed to the aluminum substrate 1 by welding, so as to achieve accurate fixation of the copper substrate. At the same time, the close fit between the two ensures the enhanced heat dissipation effect of the heat-generating element.

[0051] 3. The substrate is partially made of copper, which is harder than aluminum. The screw holes 6 on it can withstand greater torque, are less prone to damage, and ensure connection strength.

[0052] 4. This utility model is applicable to confined spaces such as cabinets with limited heat dissipation space, enhancing the local heat dissipation capacity of the radiator, and its heat dissipation performance is superior to that of aluminum radiators.

[0053] Through the above specific embodiments, those skilled in the art can easily implement this utility model. However, it should be understood that this utility model is not limited to the specific embodiments described above. Based on the disclosed embodiments, those skilled in the art can arbitrarily combine different technical features to achieve different technical solutions. Due to space limitations and for the sake of brevity, not all of these combined solutions have been described. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A copper-aluminum composite heat pipe radiator, comprising a substrate, heat pipes, and heat sink fins, wherein a plurality of heat pipes are fixedly connected to one side of the substrate, and a heating element is connected to the other side of the substrate, and all heat pipes are connected through the heat sink fins; characterized in that, The substrate includes an aluminum substrate and a copper substrate, which are fixedly connected; the aluminum substrate has a groove, and the copper substrate is disposed in the groove.

2. The copper-aluminum composite heat pipe radiator according to claim 1, characterized in that, The aluminum substrate and the copper substrate are connected by screws.

3. The copper-aluminum composite heat pipe radiator according to claim 1, characterized in that, The aluminum substrate and the copper substrate are welded and fixed together.

4. A copper-aluminum composite heat pipe radiator according to claim 1, characterized in that, The copper substrate is provided with screw holes, which are blind holes.

5. A copper-aluminum composite heat pipe radiator according to claim 1, characterized in that, The aluminum substrate and the copper substrate each have several mounting slots on one side, and the other side of the aluminum substrate and the other side of the copper substrate are both planar structures and are on the same plane.

6. A copper-aluminum composite heat pipe radiator according to claim 5, characterized in that, The aluminum substrate, copper substrate, and heat pipe are welded and fixed together.

7. A copper-aluminum composite heat pipe radiator according to claim 1, characterized in that, The substrate is provided with several mounting holes.

8. A copper-aluminum composite heat pipe radiator according to claim 1, characterized in that, The heat sinks are arranged in parallel to each other.

9. A copper-aluminum composite heat pipe radiator according to claim 1, characterized in that, The aluminum substrate is made of aluminum plate, and the copper substrate is made of copper plate.

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