Connecting structure of heat pipe and upper cover plate of radiator

Abstract

The invention discloses a connecting structure for a heat pipe and an upper cover plate of a radiator, which enables the connection between 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] The invention relates to the technical field of radiator structures, in particular to a connection structure between a heat pipe and an upper cover plate of a radiator. Background Art

[0002] With the rapid development of AI technology, chip technology has advanced rapidly, AI technology has gradually become popular, and AI devices have gradually become popular. AI electronic equipment products will generate heat during operation, which will directly affect the performance and reliability of electronic products.

[0003] The heat dissipation technology of AI electronic equipment products currently mainly includes two categories: air cooling technology and liquid cooling technology. Air cooling technology includes natural convection air cooling technology and forced convection air cooling technology. Natural convection air cooling technology is mainly used for electronic devices with low heat generation per unit volume. Forced convection air cooling technology is generally used in combination with heat pipe and temperature spreader technology. However, with the development of AI technology, chip power is getting higher and higher, and computing speed is getting faster and faster. The existing three-dimensional heat sink temperature spreader structure and the connection method of the heat pipe are not strong. The heat pipe is directly inserted and welded to the mounting hole of the upper cover. In actual use, the insertion depth of the heat pipe and the upper cover at the height position cannot be reliably ensured, which can easily lead to uneven tops of the heat pipes. In actual heat exchange, the top of the heat pipe is susceptible to external forces, which has caused weld fractures at the joints, resulting in medium leakage. For this reason, it is urgent to develop a connection structure that ensures stable and reliable connection between the heat pipe and the upper cover. Summary of the invention

[0004] In view of the above problems, the present invention provides a connection structure between a heat pipe and an upper cover plate of a radiator, which makes the connection between the heat pipe and the upper cover plate stable and reliable, thereby ensuring long-term stable operation of the radiator.

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

[0006] A temperature-averaging plate mechanism, comprising a bottom plate, an upper cover plate, and an internal cavity mechanism;

[0007] and a plurality of outwardly protruding heat pipes, each of the heat pipes comprising a positioning stop protrusion, a lower protruding positioning end, and an upper protruding exposed pipe portion;

[0008] The upper cover plate is provided with a plurality of heat pipe positioning holes, the lower convex positioning end of each heat pipe is inserted into the heat pipe positioning hole, the bottom annular surface of the positioning stop protrusion is supported on the upper surface of the upper cover plate, and the upper convex exposed pipe portion and the positioning stop protrusion are both arranged in an upward convex manner.

[0009] It is further characterized by:

[0010] The positioning stop protrusion includes a bottom annular surface and a guide conical surface that closes 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 conical surface is connected to the outer circumference of the bottom annular surface, and the top circumference of the guide conical surface is connected to the bottom of the upper convex exposed tube part;

[0011] The guide conical surface and the bottom annular surface are combined to form a guide inner cavity, and the guide inner cavity is a cavity body that closes from bottom to top, and its height is relatively small, which will not 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 fluid gas will not be blocked from entering the inner cavity of the heat pipe;

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

[0014] The upper convex exposed pipe portion of the heat pipe is bent and shaped accordingly according to actual needs. Since a lower convex positioning end and a positioning stop protrusion are provided at the bottom of the heat pipe, the upper convex exposed pipe of the heat pipe is ensured to be reliably connected to the entire upper cover plate and the heat pipe under a reasonable weight.

[0015] After adopting the technology of the present invention, the heat pipe is provided with a positioning stop protrusion, so that the bottom annular surface of the positioning stop protrusion is supported on the upper surface of the upper cover plate, and the heat pipe is positioned and inserted into the heat pipe positioning hole of the upper cover plate, which can make the placement of the heat pipe and the upper cover plate more stable, and at the same time give the heat pipe a supporting force. After that, 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 and stable operation of the radiator. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the front view of the present invention;

[0018] Figure 3 It is a schematic diagram of the exploded view structure of the present invention;

[0019] Figure 4 is a schematic cross-sectional view of a heat pipe of the present invention;

[0020] Figure 5 for Figure 4 A local enlarged schematic diagram of point A;

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

[0022] The temperature equalizing plate mechanism 10, the bottom plate 11, the upper cover plate 12, the heat pipe positioning hole 121, the internal cavity mechanism 13, the sealing end 14, the heat pipe 20, the positioning stop protrusion 21, the bottom annular surface 211, the guide conical surface 212, the guide inner cavity 213, the lower convex positioning end 22, and the upper convex exposed pipe portion 23. DETAILED DESCRIPTION

[0023] A connection structure between a heat pipe and an upper cover plate of a radiator, see Figure 1-Figure 5 , which includes a temperature equalizing plate mechanism 10 and a plurality of protruding heat pipes 20;

[0024] The temperature-averaging plate mechanism 10 includes a bottom 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] A plurality of heat pipe positioning holes 121 are provided on the upper cover plate 12. The lower convex positioning end 22 of each heat pipe 20 is inserted into the heat pipe positioning hole 121. The bottom annular 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 portion 23 and the positioning stop protrusion 21 are both arranged in an upward convex manner.

[0027] In specific implementation, the upper surface of the upper cover plate 12 has six heat pipe positioning holes 121 in an array of 2*3, and 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 portion 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 conical surface 212 that closes from bottom to top. The upper part of the lower convex positioning end 22 is connected to the inner circumference of the bottom annular surface 211, the bottom circumference of the guide conical surface 212 is connected to the outer circumference of the bottom annular surface 211, and the top circumference of the guide conical surface 212 is connected to the bottom of the upper convex exposed tube portion 23.

[0029] The guide conical surface 212 and the bottom annular surface 212 are assembled to form a guide inner cavity 213. The guide inner cavity 213 is a cavity body that closes from bottom to top, and its height is relatively small, which will not reduce the rising speed of the working gas.

[0030] In a specific implementation, the height of the lower convex positioning end 22 is equal to the thickness of the upper cover plate 12 , ensuring that the working fluid gas is not blocked from entering the inner cavity of the heat pipe 20 .

[0031] In specific implementation, the positioning stop protrusion 21 is obtained by a hot pipe cold heading process or machining;

[0032] The upper convex exposed pipe portion 23 of the heat pipe 20 is bent and shaped accordingly according to actual needs. Since a lower convex positioning end 22 and a positioning stop protrusion 21 are provided at the bottom of the heat pipe 20, the upper convex exposed pipe of the heat pipe 20 is ensured to be reliably connected to the entire upper cover plate 12 and the heat pipe 20 under a reasonable weight.

[0033] In a specific implementation, the heat pipe 20 is an aluminum heat pipe or a copper heat pipe.

[0034] Its working principle is as follows: a positioning stop protrusion is provided on the heat pipe so that the bottom annular surface of the positioning stop protrusion is supported on the upper surface of the upper cover plate, and the heat pipe is positioned and inserted into the heat pipe positioning hole of the upper cover plate, which can make the placement of the heat pipe and the upper cover plate more stable and provide a supporting force for the heat pipe. After that, 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] The beneficial effects are as follows: by deforming the heat pipe, the heat pipe can be placed on the upper cover more stably, and at the same time, this structure can also increase the connection strength during sintering; the bottom annular surface of the positioning stop protrusion formed by cold heading or hot forging of the heat pipe can make the heat pipe have a plane fit on the contact surface with the upper cover, which improves the connection strength between the radiator and the heat pipe. In terms of design, the surface size and thickness of the plane structure can be adjusted to strengthen the connection strength between the heat pipe and the upper cover, so that more heat pipes can be added to the upper shell of the upper cover, and the heat pipe can make larger bends and more shapes, thereby increasing the heat dissipation performance.

[0036] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A connection structure between a heat pipe and an upper cover plate of a radiator, characterized in that: It includes: A temperature-averaging plate mechanism, comprising a bottom plate, an upper cover plate, and an internal cavity mechanism; and a plurality of outwardly protruding heat pipes, each of the heat pipes comprising a positioning stop protrusion, a lower protruding positioning end, and an upper protruding exposed pipe portion; The upper cover plate is provided with a plurality of heat pipe positioning holes, the lower convex positioning end of each heat pipe is inserted into the heat pipe positioning hole, the bottom annular surface of the positioning stop protrusion is supported on the upper surface of the upper cover plate, and the upper convex exposed pipe portion and the positioning stop protrusion are both arranged in an upward convex manner.

2. The connection structure of the heat pipe and the upper cover of the radiator according to claim 1, characterized in that: The positioning stop protrusion includes a bottom annular surface and a guiding conical surface that closes 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 guiding conical surface is connected to the outer circumference of the bottom annular surface, and the top circumference of the guiding conical surface is connected to the bottom of the upper protruding exposed tube portion.

3. The connection structure of the heat pipe and the upper cover of the radiator according to claim 2, characterized in that: The guide conical surface and the bottom annular surface are assembled to form a guide inner cavity, and the guide inner cavity is a cavity that closes from bottom to top.

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

6. The connection structure of the heat pipe and the upper cover of the radiator according to claim 1, characterized in that: The upwardly convex exposed tube portion of the heat pipe is bent and shaped accordingly according to actual needs.

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