Connecting structure of heat pipe and upper cover plate of radiator

Abstract

The utility model discloses a connecting structure for a heat pipe and an upper cover plate of a radiator, which enables the connection of the heat pipe and the upper cover plate to be stable and reliable and ensures the long-term stable work of the radiator. The device comprises a uniform temperature plate mechanism which comprises a bottom plate, an upper cover plate and an internal cavity mechanism; each heat pipe comprises a positioning stop bulge, a lower convex positioning end and an upper convex exposed pipe part; the upper cover plate is provided with a plurality of heat pipe positioning holes, the downward-protruding positioning end of each heat pipe is inserted into the corresponding heat pipe positioning hole, the bottom ring face of the positioning stop protrusion is supported on the upper surface of the upper cover plate, and the upward-protruding exposed pipe portion and the positioning stop protrusion are both arranged in an upward-protruding mode.

Description

Technical Field

[0001] This utility model relates to the technical field of radiator structure, specifically to a connection structure between the heat pipe and the top cover plate of a radiator. Background Technology

[0002] With the rapid development of AI technology and the leapfrog progress in chip technology, AI technology is gradually becoming more mainstream, and AI devices are becoming increasingly common. AI electronic devices generate heat during operation, which directly affects their performance and reliability.

[0003] Currently, heat dissipation technologies for AI electronic devices mainly fall into two categories: air cooling and liquid cooling. Air cooling technology includes natural convection air cooling and forced convection air cooling. Natural convection air cooling is primarily used for electronic devices with relatively low heat generation per unit volume, while forced convection air cooling is generally used in conjunction with heat pipes and vapor chambers. However, with the development of AI technology, chip power is increasing and computing speed is accelerating. The existing vapor chamber structure and heat pipe connection methods of three-dimensional heat sinks are not strong enough. Heat pipes are directly inserted and welded into the mounting holes of the top cover. In actual use, the insertion depth of the heat pipes and the top cover at the height cannot be reliably ensured, which easily leads to uneven tops of the heat pipes. Furthermore, during actual heat exchange, the tops of the heat pipes are susceptible to external forces, causing weld seam breakage at the connection and resulting in media leakage. Therefore, there is an urgent need to develop a connection structure that ensures a stable and reliable connection between the heat pipes and the top cover. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides a connection structure between the heat pipe and the top cover plate of a radiator, which ensures a stable and reliable connection between the heat pipe and the top cover plate, thereby guaranteeing the long-term stable operation of the radiator.

[0005] A connection structure between a heat pipe and a top cover plate of a radiator, characterized in that it comprises:

[0006] The temperature distribution plate mechanism includes a base plate, an upper cover plate, and an internal cavity mechanism;

[0007] And several protruding heat pipes, each of which includes a positioning stop protrusion, a lower protruding positioning end, and an upper protruding exposed pipe portion;

[0008] The upper cover plate is provided with several heat pipe positioning holes. The lower convex positioning end of each heat pipe is inserted into the heat pipe positioning hole. The bottom ring surface of the positioning stop protrusion is supported on the upper surface of the upper cover plate. The upper convex exposed pipe part and the positioning stop protrusion are both arranged to convex upwards.

[0009] Its further features are:

[0010] The positioning stop protrusion includes a bottom annular surface and a guide cone surface that tapers from bottom to top. The upper part of the lower protruding positioning end is connected to the inner circumference of the bottom annular surface, the bottom circumference of the guide cone surface is connected to the outer circumference of the bottom annular surface, and the top circumference of the guide cone surface is connected to the bottom of the upper protruding exposed tube portion.

[0011] The guide cone surface and the bottom annular surface are joined together to form a guide cavity. The guide cavity is a concave oral body from bottom to top, and its height is relatively small, so as not to reduce the rising speed of the working gas.

[0012] The height of the lower convex positioning end is not greater than the thickness of the upper cover plate, ensuring that the working gas will not be blocked from entering the inner cavity of the heat pipe.

[0013] The positioning stop protrusion is formed by heat pipe cold heading or hot forging process;

[0014] The exposed upper part of the heat pipe is bent and shaped according to actual needs. Since the bottom of the heat pipe is equipped with a convex positioning end and a positioning stop protrusion, the exposed upper part of the heat pipe is reliably connected to the entire upper cover plate and the heat pipe under reasonable weight.

[0015] By adopting the technology of this utility model, the heat pipe is provided with a positioning stop protrusion, so that the bottom ring surface of the positioning stop protrusion is supported on the upper surface of the upper cover plate. The heat pipe is positioned and inserted into the heat pipe positioning hole of the upper cover plate, which makes the placement of the heat pipe and the upper cover plate more stable, and at the same time provides a supporting force for the heat pipe. Then the heat pipe and the upper cover plate are sintered as a whole, which makes the connection between the heat pipe and the upper cover plate stable and reliable, ensuring the long-term stable operation of the heat sink. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the main view of this utility model;

[0018] Figure 3 This is an exploded view of the structure of this utility model;

[0019] Figure 4 This is a cross-sectional view of the heat pipe of this utility model;

[0020] Figure 5 for Figure 4 A magnified view of part A;

[0021] The names corresponding to the serial numbers in the diagram are as follows:

[0022] Temperature distribution plate mechanism 10, base plate 11, top cover plate 12, heat pipe positioning hole 121, internal cavity mechanism 13, sealing end 14, heat pipe 20, positioning stop protrusion 21, bottom annular surface 211, guide cone surface 212, guide inner cavity 213, lower convex positioning end 22, upper convex exposed pipe part 23. Detailed Implementation

[0023] A connection structure between the heat pipes and the top cover of a radiator, see Figures 1-5 It includes a heat spreader mechanism 10 and several protruding heat pipes 20;

[0024] The temperature distribution plate mechanism 10 includes a base plate 11, an upper cover plate 12, an internal cavity mechanism 13, and a sealing end 14;

[0025] Each heat pipe 20 includes a positioning stop protrusion 21, a lower protruding positioning end 22, and an upper protruding exposed pipe portion 23;

[0026] The upper cover plate 12 is provided with a number of heat pipe positioning holes 121. The lower convex positioning end 22 of each heat pipe 20 is inserted into the heat pipe positioning hole 121. The bottom ring surface 211 of the positioning stop protrusion 21 is supported on the upper surface of the upper cover plate 12. The upper convex exposed pipe part 23 and the positioning stop protrusion 21 are both arranged to convex upwards.

[0027] In specific implementation, the upper surface of the upper cover plate 12 has six heat pipe positioning holes 121 arranged in a 2*3 pattern. The lower convex positioning ends 22 of the six heat pipes are respectively inserted into the heat pipe positioning holes 121, and the upper convex exposed pipe part 23 of each heat pipe is a straight pipe structure.

[0028] In specific implementation: the positioning stop protrusion 21 includes a bottom annular surface 211 and a guide cone surface 212 that tapers from bottom to top. The upper part of the lower protruding positioning end 22 is connected to the inner circumference of the bottom annular surface 211, the bottom circumference of the guide cone surface 212 is connected to the outer circumference of the bottom annular surface 211, and the top circumference of the guide cone surface 212 is connected to the bottom of the upper protruding exposed tube part 23.

[0029] The guide cone surface 212 and the bottom annular surface 212 are joined together to form a guide cavity 213. The guide cavity 213 is a concave oral body from bottom to top, and its height is relatively small, so it will not reduce the rising speed of the working gas.

[0030] In practice, the height of the lower convex positioning end 22 is equal to the thickness of the upper cover plate 12 to ensure that the working gas will not be blocked from entering the inner cavity of the heat pipe 20.

[0031] In practice, the positioning stop protrusion 21 is obtained through heat pipe cold heading process or machining.

[0032] The exposed upper part 23 of the heat pipe 20 is bent and shaped according to actual needs. Since the bottom of the heat pipe 20 is provided with a lower convex positioning end 22 and a positioning stop protrusion 21, it ensures that the exposed upper part of the heat pipe 20 is reliably connected to the entire upper cover plate 12 and the heat pipe 20 under reasonable weight.

[0033] In practice, heat pipe 20 can be an aluminum heat pipe or a copper heat pipe.

[0034] Its working principle is as follows: The heat pipe is equipped with a positioning stop protrusion, so that the bottom ring surface of the positioning stop protrusion is supported on the upper surface of the upper cover plate. The heat pipe is positioned and inserted into the heat pipe positioning hole of the upper cover plate, which makes the placement of the heat pipe and the upper cover plate more stable and provides a supporting force for the heat pipe. Then the heat pipe and the upper cover plate are sintered as a whole, so that the connection between the heat pipe and the upper cover plate is stable and reliable.

[0035] Its beneficial effects are as follows: By deforming the heat pipe, the heat pipe is placed more stably on the top cover plate, and the connection strength is increased during sintering through this structure; the bottom ring surface of the positioning stop protrusion formed by cold forging or hot forging of the heat pipe allows the heat pipe to have a flat surface that fits against the contact surface of the top cover plate, which improves the connection strength between the heat sink and the heat pipe. In terms of design, the area size and thickness of the planar structure can be adjusted to strengthen the connection strength between the heat pipe and the top cover plate, allowing more heat pipes to be added to the top cover plate, and the heat pipes can be made into larger bends and more shapes, increasing the heat dissipation performance.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A connection structure between a heat pipe and a top cover plate of a radiator, characterized in that, It includes: The temperature distribution plate mechanism includes a base plate, an upper cover plate, and an internal cavity mechanism; And several protruding heat pipes, each of which includes a positioning stop protrusion, a lower protruding positioning end, and an upper protruding exposed pipe portion; The upper cover plate is provided with several heat pipe positioning holes. The lower convex positioning end of each heat pipe is inserted into the heat pipe positioning hole. The bottom ring surface of the positioning stop protrusion is supported on the upper surface of the upper cover plate. The upper convex exposed pipe part and the positioning stop protrusion are both arranged to convex upwards.

2. The connection structure between the heat pipe and the upper cover plate of a radiator according to claim 1, characterized in that: The positioning stop protrusion includes a bottom annular surface and a guide cone surface that tapers from bottom to top. The upper part of the lower convex positioning end is connected to the inner circumference of the bottom annular surface, the bottom circumference of the guide cone surface is connected to the outer circumference of the bottom annular surface, and the top circumference of the guide cone surface is connected to the bottom of the upper convex exposed tube portion.

3. The connection structure between the heat pipe and the upper cover plate of a radiator according to claim 2, characterized in that: The guide cone surface and the bottom annular surface are joined together to form a guide cavity, which is a concave oral cavity that narrows from bottom to top.

4. The connection structure between the heat pipe and the upper cover plate of a radiator according to claim 1, characterized in that: The height of the lower convex positioning end is not greater than the thickness of the upper cover plate.

5. The connection structure between the heat pipe and the upper cover plate of a radiator according to any one of claims 1-3, characterized in that: The positioning stop protrusion is formed by heat pipe cold heading or hot forging process.

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