Condenser fin structure for a separate heat pipe cooling device

Abstract

The utility model discloses a condensing end fin structure of separation type heat pipe cooling device, including condensing end body and the fin group of setting at the outside of condensing end body, the fin group is by a plurality of main fin and the alternate arrangement of auxiliary fin and is composed, the height of main fin is greater than the height of auxiliary fin, and is provided with a plurality of through ventilation hole on main fin, the side wall of auxiliary fin is provided with the arc flow guide groove to main fin, and the edge of auxiliary fin is provided with the flanging that is up and is warped.

Description

Technical Field

[0001] This utility model relates to the field of heat pipe cooling technology, specifically to a finned structure at the condenser end of a split heat pipe cooling device. Background Technology

[0002] Split-type heat pipe cooling systems are widely used in electronic equipment cooling and industrial waste heat recovery due to their high heat transfer efficiency and flexible layout. The condenser end, as a crucial component of the split-type heat pipe cooling system, directly affects the overall cooling effect of the device. Finned structures, commonly used to enhance heat dissipation at the condenser end, increase the heat dissipation area to improve efficiency.

[0003] However, most of the fin structures at the condenser end of existing split heat pipe cooling devices adopt a single-height straight fin design. This design has the following shortcomings: First, the airflow path between the fins is relatively simple, which can easily form airflow dead zones, resulting in uneven heat dissipation and affecting heat dissipation efficiency. In addition, the thermal conductivity and structural stability of existing fins need to be further improved, making it difficult to meet the heat dissipation requirements of high-power equipment.

[0004] Therefore, there is an urgent need for a finned structure at the condenser end of a split heat pipe cooling device that can optimize airflow, reduce contact thermal resistance, improve thermal conductivity and structural stability. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a finned structure at the condenser end of a split heat pipe cooling device, which can optimize the airflow path, extend the contact time between the airflow and the fins, and improve the uniformity and efficiency of heat dissipation.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a condenser end fin structure of a split heat pipe cooling device, including a condenser end body and a fin group disposed on the outside of the condenser end body. The fin group is composed of multiple main fins and auxiliary fins arranged alternately. The height of the main fins is greater than the height of the auxiliary fins, and the main fins are provided with several through ventilation holes. The auxiliary fins are provided with arc-shaped guide grooves on the sidewalls facing the main fins, and the edges of the auxiliary fins are provided with upward-curved folded edges.

[0007] Furthermore, the ventilation holes on the main fin are distributed in a matrix, with a spacing of 5-8 mm between two adjacent ventilation holes and a diameter of 3-5 mm for each ventilation hole.

[0008] Furthermore, the inner wall of the ventilation hole is provided with a spiral guide protrusion, the height of which is 0.5-1mm and the lead is 2-3mm.

[0009] Furthermore, the guide groove on the auxiliary fin is arranged longitudinally with its opening facing the main fin. The cross-section of the guide groove is an arc-shaped structure with a depth of 1-2 mm and a width of 2-3 mm. The upturn angle of the folded edge is 30°-45° and the height is 1-1.5 mm.

[0010] Furthermore, the thickness of both the main fin and the auxiliary fin is 0.3-0.6 mm, and the surface of both the main fin and the auxiliary fin is provided with an anodized layer with a thickness of 5-10 μm.

[0011] Furthermore, several positioning grooves are provided on the outer side wall of the condenser end body, and positioning protrusions that match the positioning grooves are provided on the inner side of the main fins and auxiliary fins. The positioning protrusions are embedded in the positioning grooves to achieve the initial positioning of the fin assembly and the condenser end body.

[0012] Furthermore, the cross-section of the positioning groove is trapezoidal, the cross-section of the positioning protrusion matches the cross-section of the positioning groove, and the depth of the positioning groove is 0.5-1mm and the width is 1-1.5mm.

[0013] Furthermore, a thermally conductive adhesive layer is provided between the condenser end body and the fin assembly.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention designs the fin assembly as consisting of alternating main fins and auxiliary fins, with the main fins being taller than the auxiliary fins. Combined with the ventilation holes and spiral guide protrusions on the main fins, and the guide grooves and folded edges on the auxiliary fins, it can optimize the airflow path, avoid the generation of dead airflow angles, prolong the contact time between the airflow and the fins, and improve the uniformity and efficiency of heat dissipation.

[0016] The thermally conductive adhesive layer containing graphene thermally conductive particles, placed between the condenser body and the fin assembly, can significantly reduce contact thermal resistance and improve the efficiency of heat transfer from the condenser body to the fin assembly.

[0017] The main and auxiliary fins are made of aluminum alloy and have an anodized layer, which not only ensures good thermal conductivity but also enhances corrosion resistance and extends service life.

[0018] The positioning groove on the condenser end body cooperates with the positioning protrusion on the fins to achieve the initial positioning of the fin assembly, improving the ease of installation and structural stability. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the main fin structure.

[0022] Figure 3 This is a schematic diagram of the auxiliary fin structure.

[0023] Figure 4 This is a cross-sectional view of the ventilation holes in the main fins.

[0024] Figure 5 A schematic diagram showing the connection between the main fins and the condenser body. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below through specific embodiments.

[0026] refer to Figures 1-4 The condenser end fin structure of the split heat pipe cooling device includes a condenser end body 1 and a fin group arranged on the outside of the condenser end body. The fin group is composed of multiple main fins 2 and auxiliary fins 3 arranged alternately. The height of the main fins 2 is greater than the height of the auxiliary fins 3, and the main fins 2 are provided with several through ventilation holes 4. The auxiliary fins 3 are provided with arc-shaped guide grooves 5 on the side wall facing the main fins 2, and the edges of the auxiliary fins 3 are provided with upward-curved folded edges 6.

[0027] In this embodiment, the ventilation holes 4 on the main fin 2 are arranged in a matrix, with a spacing of 5-8 mm between two adjacent ventilation holes and a diameter of 3-5 mm for each ventilation hole 4. In this embodiment, the inner wall of the ventilation holes is provided with spiral-shaped guide protrusions 7, the height of which is 0.5-1 mm.

[0028] In this embodiment, the guide groove on the auxiliary fin is arranged longitudinally with the opening facing the main fin. The cross-section of the guide groove is an arc-shaped structure with a depth of 1-2 mm and a width of 2-3 mm. The upturn angle of the folded edge is 30°-45° and the height is 1-1.5 mm.

[0029] In this embodiment, the thickness of both the main fin and the auxiliary fin is 0.3-0.6 mm, and the surface of both the main fin and the auxiliary fin is provided with an anodized layer with a thickness of 5-10 μm.

[0030] In this embodiment, the fin assembly is welded to the condenser section body.

[0031] Example 2

[0032] like Figure 5 As shown, in this embodiment, a plurality of positioning grooves 8 are provided on the outer side wall of the condenser end body, and positioning protrusions 9 adapted to the positioning grooves are provided on the inner side of both the main fins and the auxiliary fins. The positioning protrusions are embedded in the positioning grooves to achieve the initial positioning of the fin assembly and the condenser end body. The initial positioning is achieved by welding connection.

[0033] In this embodiment, the cross-section of the positioning groove is trapezoidal, and the cross-section of the positioning protrusion matches the cross-section of the positioning groove. The depth of the positioning groove is 0.5-1mm, and the width is 1-1.5mm.

[0034] The trapezoidal positioning grooves and protrusions make the connection between the fin assembly and the condenser body more stable and reliable, preventing the fins from shifting or falling off during use, and also facilitating the installation and positioning of the fins.

[0035] Example 3

[0036] In this embodiment, the condenser end body and the fin assembly are connected and fixed by a thermally conductive adhesive layer. The thickness of the thermally conductive adhesive layer is 0.2-0.5mm, and graphene thermally conductive particles are disposed within the thermally conductive adhesive layer. The particle size of the graphene thermally conductive particles is 50-100nm, and the mass percentage of the graphene thermally conductive particles in the thermally conductive adhesive layer is 5%-10%.

[0037] In this embodiment, the thermally conductive adhesive layer can further enhance the connection strength between the fin assembly 2 and the condenser body 1. On the other hand, the graphene thermally conductive particles have excellent thermal conductivity, which can effectively reduce the contact thermal resistance between the condenser body 1 and the fin assembly 2, improve the efficiency of heat transfer from the condenser body 1 to the fin assembly 2, and thus further improve the heat dissipation performance of the entire cooling device.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and protection scope, and such modifications or equivalent substitutions should also be considered to fall within the protection scope of the present utility model's technical solution.

Claims

1. A finned structure for the condenser end of a split heat pipe cooling device, comprising a condenser end body and a fin assembly disposed on the outer side of the condenser end body, characterized in that: The fin assembly consists of multiple main fins and auxiliary fins arranged alternately. The height of the main fins is greater than that of the auxiliary fins, and the main fins have several through ventilation holes. The auxiliary fins have arc-shaped guide grooves on their sidewalls facing the main fins, and the edges of the auxiliary fins have upward-curving folds.

2. The condenser end fin structure of the split heat pipe cooling device according to claim 1, characterized in that: The ventilation holes on the main fin are arranged in a matrix, with a spacing of 5-8 mm between two adjacent ventilation holes and a diameter of 3-5 mm.

3. The condenser end fin structure of the split heat pipe cooling device according to claim 1, characterized in that: The inner wall of the ventilation hole is provided with a spiral guide protrusion, the height of which is 0.5-1mm.

4. The condenser end fin structure of the split heat pipe cooling device according to claim 1, characterized in that: The guide grooves on the auxiliary fins are arranged longitudinally with their openings facing the main fins. The cross-section of the guide grooves is an arc-shaped structure with a depth of 1-2 mm and a width of 2-3 mm. The upturn angle of the folded edge is 30°-45° and the height is 1-1.5 mm.

5. The condenser end fin structure of the split heat pipe cooling device according to claim 1, characterized in that: The thickness of both the main fin and the auxiliary fin is 0.3-0.6 mm, and the surface of both the main fin and the auxiliary fin is provided with an anodized layer with a thickness of 5-10 μm.

6. The condenser end fin structure of the split heat pipe cooling device according to claim 1, characterized in that: Several positioning grooves are provided on the outer side wall of the condenser end body. The inner side of the main fin and the auxiliary fin are provided with positioning protrusions that are adapted to the positioning grooves. The positioning protrusions are embedded in the positioning grooves to achieve the initial positioning of the fin assembly and the condenser end body.

7. The condenser end fin structure of the split heat pipe cooling device according to claim 6, characterized in that: The positioning groove has a trapezoidal cross-section, and the cross-section of the positioning protrusion matches the cross-section of the positioning groove. The depth of the positioning groove is 0.5-1mm, and the width is 1-1.5mm.

8. The condenser end fin structure of the split heat pipe cooling device according to claim 1, characterized in that: A thermally conductive adhesive layer is provided between the condenser end body and the fin assembly.

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