Die-cast parts with added heat pipe cooling structure

Abstract

This utility model discloses a heat pipe heat dissipation structure for a die-cast part, including a die-cast part and a heat pipe fixed to one side of the die-cast part. The die-cast part has an integrally formed boss in its middle. A groove for placing the heat pipe is formed on the upper surface of the boss. The heat pipe is glued into the groove. The upper surface of the boss is divided into heat-absorbing areas for contact with external electronic modules. The groove is located below the heat-absorbing areas. The heat pipe has a bend that runs parallel to the heat-absorbing areas, and its upper surface is flush with the upper surface of the boss. Several heat pipes are provided. In this utility model, the heat pipes are positioned and glued in the groove, ensuring a stable and tight fit, reducing thermal resistance. The bend that runs parallel to the heat-absorbing areas allows for matching multiple heat-absorbing areas, increasing the heat contact area and transfer efficiency. The flush surface of the heat pipe with the boss does not affect the installation and fit of external electronic modules, ensuring structural compatibility.

Description

Technical Field

[0001] This utility model relates to the field of die casting production technology, specifically to adding a heat pipe heat dissipation structure to die castings. Background Technology

[0002] Die casting is a metal part made through a die casting process. The die casting process involves rapidly pressing molten metal into a mold cavity under high pressure, and after cooling and solidification, producing parts with precise dimensions and complex shapes. These parts are widely used in various equipment or devices requiring heat dissipation.

[0003] To achieve heat dissipation, heat dissipation fins are usually set on the surface of die-cast parts. The fins increase the contact area with the air and dissipate heat through natural convection or forced air cooling.

[0004] However, as related equipment develops towards higher power and miniaturization, the heat generated by its internal modules, such as power modules and electronic modules, increases dramatically during operation. The heat dissipation fins of the die-cast parts alone are insufficient for heat dissipation. In particular, heat accumulates in the heat-absorbing areas of the modules; if it cannot be dissipated effectively and promptly, the module temperature will become too high, affecting the operational stability and lifespan of the equipment. Therefore, a more efficient heat dissipation solution is urgently needed to improve the heat dissipation effect of the die-cast parts. Utility Model Content

[0005] The purpose of this invention is to provide a heat pipe heat dissipation structure for die-cast parts. By setting heat pipes in the heat absorption area of ​​the die-cast parts and optimizing the heat pipe layout, the heat transfer efficiency is enhanced, the overall heat dissipation performance is improved, and the stability and service life of the equipment are ensured.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a heat pipe heat dissipation structure is added to the die casting, including the die casting and a heat pipe fixed on one side of the die casting. An integrally formed boss is provided in the middle of the die casting, and a groove for placing the heat pipe is opened on the upper surface of the boss. The heat pipe is glued in the groove.

[0007] Preferably, the upper surface of the boss is divided into a heat-absorbing area for contact with external electronic modules, and the groove is formed below the heat-absorbing area.

[0008] Preferably, the heat pipe has a bend that runs in the same direction as the heat absorption zone, and the upper surface of the heat pipe is flush with the upper surface of the boss. Several heat pipes are provided.

[0009] Preferably, the other side of the die-cast part is provided with several sets of integrally formed heat dissipation fins, and the edge of the die-cast part is provided with mounting holes for fixing the die-cast part to external equipment.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The heat pipe of this utility model is directly set below the heat absorption area of ​​the die-cast part, which can quickly absorb the heat accumulated in the heat absorption area and conduct the heat to the heat dissipation fins through the heat transfer characteristics of the heat pipe. This solves the problem that the heat dissipation effect of relying solely on fins is not good enough, reduces the temperature of the heat absorption area, and improves the operational stability of the equipment.

[0012] 2. The heat pipe of this utility model is positioned by groove and fixed by adhesive bonding, which makes the installation stable and tight, reducing thermal resistance. The heat pipe is set with a bend that is consistent with the direction of the heat absorption area, which can match multiple heat absorption areas, improve the heat contact area and transfer efficiency. The upper surface of the heat pipe is flush with the surface of the boss, which does not affect the installation and fit of the external electronic module and ensures structural compatibility. Attached Figure Description

[0013] Figure 1 This is an isometric drawing of this utility model;

[0014] Figure 2 This is a schematic diagram of the groove structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure on the back of the die-cast part of this utility model.

[0016] In the diagram: 1. Die casting; 2. Heat pipe; 3. Boss; 4. Groove; 5. Heat absorption zone; 201. Bending section; 7. Heat dissipation fins; 8. Mounting hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 This utility model provides a technical solution: a heat dissipation structure with a heat pipe 2 added to a die-cast part 1, including a die-cast part 1 and a heat pipe 2 fixed on one side of the die-cast part 1. An integrally formed boss 3 is provided in the middle of the die-cast part 1. The integrally formed boss 3 directly contacts the external electronic module, avoiding additional assembly structure, reducing thermal resistance and enhancing structural stability. A groove 4 for placing the heat pipe 2 is opened on the upper surface of the boss 3. The heat pipe 2 is glued in the groove 4. The groove 4 is used to fix the position of the heat pipe 2 and prevent the heat pipe 2 from shifting.

[0019] The heat pipe 2 is fixed in the groove 4 using a pressing and filling process. The heat pipe 2 is mainly made of copper, which has a high thermal conductivity of about 401 W / (m・K), can efficiently transfer heat, and has good processing performance. It can be adapted to different shapes of heat absorption areas 5 through bending, flattening and other processes.

[0020] When filling the heat pipe with adhesive, clean the surface of heat pipe 2 to remove oil and oxide layer, and perform micro-roughening treatment if necessary. Inject thermally conductive adhesive along the gap between heat pipe 2 and groove 4. The amount of adhesive injected should be enough to fill the gap without overflowing. Use a jig to apply uniform pressure to heat pipe 2. After curing, remove the excess adhesive layer.

[0021] By applying pressure, the adhesive layer fully fills the gaps, reducing thermal resistance caused by residual air and ensuring efficient heat transfer between heat pipe 2 and die-cast part 1. After the adhesive layer cures, it forms a stable connection that can withstand vibrations and thermal expansion and contraction stresses during equipment operation, preventing heat pipe 2 from falling off or making poor contact.

[0022] The thermally conductive adhesive is made of thermally conductive silicone, which has good thermal conductivity and sealing properties. It can fill the tiny gap between the heat pipe 2 and the groove 4, reduce contact thermal resistance, and has a certain degree of elasticity, which can buffer the stress caused by vibration or thermal expansion and contraction. When the die-cast part 1 is suitable for a stable structure and no severe deformation, thermally conductive epoxy resin can also be used, which has high strength and good high temperature resistance after curing.

[0023] The upper surface of the boss 3 is divided into a heat-absorbing area 5 for contact with external electronic modules, and the groove 4 is formed below the heat-absorbing area 5. The heat generated when the external electronic modules are working is directly transferred to the heat-absorbing area 5 of the boss 3. The heat pipe 2 below the heat-absorbing area 5 can quickly absorb the heat and conduct it out, shortening the heat transfer path.

[0024] The heat pipe 2 is provided with a bend 201 that runs in the same direction as the heat absorption zone 5, and the upper surface of the heat pipe 2 is flush with the upper surface of the boss 3. Several heat pipes 2 are provided. The bend 201 causes the heat pipe 2 to contact multiple points of the heat absorption zone 5, increasing the contact area with the heat absorption zone 5. Multiple heat pipes 2 can divert heat and improve the overall heat dissipation capacity.

[0025] On the other side of the die-cast part 1, there are several sets of integrally formed heat dissipation fins 7. The heat absorbed by the heat pipe 2 is transferred to the die-cast part 1, and then heat is exchanged with the air through the heat dissipation fins 7 on the other side to dissipate the heat into the environment. The edge of the die-cast part 1 is provided with mounting holes 8 for fixing the die-cast part 1 to external equipment.

[0026] When in use, the external electronic module generates heat during operation, and the heat is transferred to the boss 3 through close contact with the heat absorption area 5 of the boss 3 of the die-cast part 1.

[0027] The heat pipe 2 in the groove 4 below the heat absorption zone 5 directly absorbs the heat accumulated in the heat absorption zone 5, achieving efficient and rapid heat conduction;

[0028] The heat pipe 2 adapts to the direction of the heat absorption zone 5 through the bend 201, increasing the heat absorption area. At the same time, it transfers the absorbed heat along the pipe body to the non-heat absorption zone 5 of the die-cast part 1. The heat transferred to the die-cast part 1 is finally conducted to the heat dissipation fins 7 on the other side. Through the large-area contact between the fins and the air, the heat is dissipated into the environment through natural convection or forced air cooling. Throughout the process, the glued and fixed heat pipe 2 ensures continuous and close contact with the die-cast part 1.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A die casting heat pipe radiating structure characterized by: It includes a die casting (1) and a heat pipe (2) fixed on one side of the die casting (1). The die casting (1) has an integrally formed boss (3) in the middle. The upper surface of the boss (3) has a groove (4) for placing the heat pipe (2). The heat pipe (2) is glued in the groove (4).

2. The die casting heat pipe radiating structure according to claim 1, wherein: The upper surface of the boss (3) is divided into a heat-absorbing area (5) for contact with external electronic modules, and the groove (4) is formed below the heat-absorbing area (5).

3. The heat pipe cooling structure for die-cast parts according to claim 2, characterized in that: The heat pipe (2) is provided with a bend (201) that runs in the same direction as the heat absorption zone (5), and the upper surface of the heat pipe (2) is flush with the upper surface of the boss (3). There are several heat pipes (2).

4. The die casting heat pipe cooling structure according to claim 1, wherein: The other side of the die-cast part (1) is provided with several sets of integrally formed heat dissipation fins (7), and the edge of the die-cast part (1) is provided with mounting holes (8) for fixing the die-cast part (1) to external equipment.

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