Radiator and its connecting pipe

Abstract

The utility model relates to a connecting pipe which is arranged on a radiator. The connecting pipe comprises a pipe body and two connectors. The pipe body has a body section and two end sections. The pipe wall of the body section is formed with a plurality of circumferentially extending recesses and a plurality of circumferentially extending protrusions. Each recess is radially inwardly recessed, and each protrusion is radially outwardly protruded. The recesses and the protrusions are alternately arranged to form a corrugated structure. The two end sections are connected to opposite ends of the body section and are flat and cylindrical. The two end sections are in communication with each other through the body section. Each connector has a flat and cylindrical connecting portion. The two end sections are welded to the connecting portions of the two connectors. The utility model is welded by the end sections and the connectors. Since the end sections are flat and cylindrical, the welding surface is an entire circumferential surface during welding, so that the structural strength and reliability can be improved.

Description

Technical Field

[0001] This utility model relates to a heat sink and a connecting pipe for the heat sink, and more particularly to a heat sink and its connecting pipe for use in a computer device. Background Technology

[0002] In recent years, chips used for artificial intelligence (AI) computation have made significant progress and are gradually becoming more widespread. As a result, many manufacturers, organizations, and individuals have adopted AI computing devices to train personalized AI models. AI computation involves a massive amount of data processing, generating a considerable amount of heat. Overheating can lead to decreased computational performance, making heat dissipation a crucial issue that requires careful attention in AI computing devices.

[0003] There is an existing circulating cooling device for computers, which can be used in server devices for artificial intelligence. The server-side portion of this cooling device includes a heat sink for contacting the chip, a manifold for supplying coolant, and connecting pipes that connect the heat sink and the manifold. These connecting pipes are interconnected with both the heat sink and the manifold via connectors. To accommodate the limited space within a server and avoid various devices, the connecting pipes are often corrugated pipes with good flexibility. Connectors are attached to both ends of the corrugated pipes to connect to the heat sink and the manifold.

[0004] Please refer to Figure 6 and Figure 7 In the manufacturing of commonly used connecting pipes 90, the corrugated pipe 91 is inserted directly into the mating groove 921 of the connector 92 without any treatment at both ends. Because the mating groove 921 needs to fit the uneven wall structure of the corrugated pipe 91, its width is relatively large. Therefore, after the corrugated pipe 91 is inserted, it still needs to be reinforced by welding. However, due to its structure, the contact position between the outer surface of the corrugated pipe 91 and the groove wall of the mating groove 921 is only a few circles, resulting in a small total area of ​​the welding surface A2 and insufficient structural strength. When in use, the connector 92 is subjected to thermal expansion and contraction due to temperature changes, as well as the impact or lateral pressure of liquid or liquid-gas mixtures. If the structural strength is insufficient, it is easy to fall off, causing the internal cooling fluid to leak out.

[0005] Therefore, it is clear that the existing connecting pipes used for computer heat dissipation devices do need to be improved. Utility Model Content

[0006] The main objective of this invention is to provide a connecting pipe for a computer heat dissipation device, which has a large welding surface between the connector and the pipe body, thereby improving the structural strength and reliability after welding.

[0007] To achieve the aforementioned objectives, the present invention provides a connecting pipe for use in a heat sink, the connecting pipe comprising:

[0008] A tube body, which has:

[0009] A body segment, the wall of which is formed with a plurality of circumferentially extending recesses and a plurality of circumferentially extending protrusions, each recess being radially inwardly recessed and each protrusion being radially outwardly protruding, the recesses and protrusions being alternately arranged along the length of the body segment to form a corrugated structure; and

[0010] Two end sections, respectively connected to opposite ends of the main body section, and each end section is a flat cylindrical shape, the two end sections being interconnected through the main body section; and

[0011] Two connectors, each connector having an access portion, the access portion being a flat cylindrical shape, and the two end sections being welded to the access portions of the two connectors respectively.

[0012] Furthermore, in order to achieve the aforementioned objectives, this utility model also proposes a radiator, which includes:

[0013] The connecting tube is as described above;

[0014] A heat sink, which is connected to and communicates with one of the connectors of the connecting pipe; and

[0015] A branch pipe that connects to and communicates with another connector of the connecting pipe.

[0016] Therefore, the advantage of this invention lies in the fact that both ends of the pipe have extended end sections, which are flat and cylindrical, unlike the main body, and do not have the corrugated structure composed of concave and convex parts. Therefore, when the end sections and the connector are welded together, the solder distribution is larger, and the welding surface is a complete circumference. Compared with the prior art, the welding surface area of ​​this invention is significantly increased, thus improving structural strength, reliability, impact resistance to liquids or liquid-gas mixtures, and tolerance to lateral pressure, while reducing the risk of the pipe and connector detaching after being subjected to tension and thermal expansion and contraction.

[0017] As described above, the two end sections of the tube body are respectively fitted onto the access portions of the two connectors, and the inner circumferential surface of each end section is connected to the outer circumferential surface of the corresponding access portion by welding.

[0018] As described above, the outer diameter of each end segment is between the minimum outer diameter of each recess and the maximum outer diameter of each protrusion of the body segment.

[0019] As described above, each connector further has a stop portion that protrudes from the outer peripheral surface of the access portion, and the periphery of the opening of the corresponding end segment abuts against the stop portion. Attached Figure Description

[0020] Figure 1 This is a three-dimensional view of the connecting pipe of this utility model.

[0021] Figure 2 This is a three-dimensional exploded view of the connecting pipe of this utility model.

[0022] Figure 3 This is a partially enlarged cross-sectional view of the connecting tube of this utility model.

[0023] Figure 4 This is an enlarged cross-sectional view of another part of the connecting tube of this utility model.

[0024] Figure 5 This is a schematic diagram of the heat sink of this utility model.

[0025] Figure 6 This is a three-dimensional exploded view of the connecting pipe in the prior art.

[0026] Figure 7 This is a partially enlarged cross-sectional view of a connecting pipe in the prior art. Detailed Implementation

[0027] The following, in conjunction with the accompanying drawings and preferred embodiments of the present invention, further illustrates the technical means employed by the present invention to achieve its intended purpose.

[0028] Please refer to the following first. Figure 1 and Figure 5 This invention proposes a connecting pipe 10 for use in a heat sink; more specifically, the connecting pipe 10 is used in the liquid cooling system of an artificial intelligence computer device, particularly in a cooling system to assist in the heat dissipation of a graphics processing unit (GPU) chip, but is not limited thereto. The connecting pipe 10 proposed in this invention includes a pipe body 11 and two connectors 12, wherein the two connectors 12 are respectively fixed to both ends of the pipe body 11 by welding.

[0029] Please refer to Figures 2 to 4 The tube body 11 includes a main body segment 111 and two end segments 112, wherein the two end segments 112 are located at opposite ends of the length direction of the main body segment 111, and in this embodiment, the two end segments 112 and the main body segment 111 are integrally formed.

[0030] The pipe wall of the body segment 111 has multiple circumferentially extending recesses 1111 and multiple circumferentially extending protrusions 1112. Each recess 1111 is radially recessed inward, while each protrusion 1112 is radially protruding outward. The recesses 1111 and protrusions 1112 are arranged alternately along the length of the body segment 111 to form a corrugated structure. Figure 3 and Figure 4 As shown in the cross-sectional view of the body segment 111, the concave portions 1111 and convex portions 1112 of the pipe wall are alternately connected, forming an oscillating corrugated structure with multiple crests and troughs. Furthermore, in this embodiment, the length L1 of each concave portion 1111 in the length direction of the body segment 111 is less than the length L2 of each convex portion 1112 in the length direction of the body segment 111, but this is not a limitation. In addition, in this embodiment, the maximum outer diameter D2 of the body segment 111 at the positions of each convex portion 1112 is the same, and the minimum inner diameter at the positions of each concave portion 1111 is also the same, but again, this is not a limitation. Therefore, the body segment 111 of the pipe body 11 in this embodiment is easy for the user to bend, and after bending, it is easy to fix its shape. Furthermore, it reduces the resistance encountered by the cooling liquid when flowing within the body segment 111, while increasing the heat dissipation area.

[0031] Two end segments 112 are respectively connected to opposite ends of the body segment 111, and the two end segments 112 are interconnected through the body segment 111. Each end segment 112 is a flat cylindrical shape and has an opening. The end segments 112 are used to connect with the connector 12, specifically to provide solder (not shown) for adhesion and connection. In this embodiment, the outer diameter of each end segment 112 is between the minimum outer diameter D1 of each recess 1111 of the body segment 111 and the maximum outer diameter D2 of each protrusion 1112; furthermore, the inner diameter of each end segment 112 can be the same as the minimum inner diameter of each recess 1111, but is not limited thereto. Thus, in this embodiment, the end segments 112 can be sleeved onto the connector 12 in a socket-like manner, reducing the resistance of the cooling fluid flowing from the connector 12 into the pipe body 11 by the recesses 1111, but is not limited thereto. Since the end section 112 of the tube body 11 is a flat cylindrical shape, the solder can cover the wall of the end section 112 and connect with the joint 12 during welding. Compared with the prior art, it has a better connection effect, making the welded structure stable, able to withstand the impact of liquid or liquid-gas mixture, and will not easily fall off after being pulled, reducing the possibility of leakage.

[0032] Please refer to Figures 2 to 4 The two connectors 12 are respectively fixed to the two end sections 112 of the pipe body 11 by welding. Specifically, each connector 12 has an access portion 121, and the access portion 121 is flat and cylindrical. The two end sections 112 of the pipe body 11 are respectively sleeved on the access portions 121 of the two connectors 12, and the inner circumferential surface of each end section 112 is connected to the outer circumferential surface of the corresponding access portion 121 by welding.

[0033] In this embodiment, since both the end section 112 of the pipe body 11 and the access portion 121 of the connector 12 are flat cylindrical, when the connector 12 and the end section 112 are welded, the solder can be distributed between the inner circumferential surface of the end section 112 and the outer circumferential surface of the access portion 121, and its welding surface A1 is relatively... Figure 6 and Figure 7 The welding surface A2 of the prior art shown is significantly increased, thus increasing the structural strength and reliability after welding, and also able to withstand the impact of liquid or liquid-gas mixtures, reducing the risk of loosening due to stretching or thermal expansion and contraction.

[0034] In addition, each connector 12 may further have a stop portion 122. The stop portion 122 protrudes from the outer peripheral surface of the access portion 121, thereby the periphery of the opening of the corresponding end section 112 on the tube body 11 abuts against the stop portion 122, which can assist in positioning during welding.

[0035] Please refer to the following: Figures 3 to 5 The heat sink proposed in this invention includes a connecting pipe 10, a heat sink 20, and a branch pipe 30 as described above, and may further include cooling fluid (not shown in the figure). The heat sink 20 can be used to contact a computing chip, such as... Figure 5 The graphics processor G shown is connected to a heat sink 20 via a connector 12 of the connecting pipe 10. Similarly, a branch pipe 30 is connected to the other connector 12 of the connecting pipe 10. In this embodiment, the connectors 12 at both ends of the connecting pipe 10 may have different forms, thereby corresponding to the heat sink 20 and the branch pipe 30 respectively, or multiple connecting pipes 10 may be connected in series, but this is not a limitation. Cooling fluid flows through the connecting pipe 10, the heat sink 20, and the branch pipe 30. The cooling fluid may be refrigerant or water, but this is not a limitation and can be adjusted according to actual needs.

[0036] The connecting pipe 10 of this invention has a pipe body 11 with end sections 112 at both ends and access portions 121 of the connector 12 welded together. Since both end sections 112 and access portions 121 are flat cylindrical, the area of ​​the solder distribution, i.e., the welding surface A1, is a complete circumference. In other words, the end sections 112 and access portions 121 are joined and fixed face-to-face. Compared to the prior art where the welding surface A2 consists of only a few circles, the area of ​​the welding surface A1 of this invention is significantly increased, thus providing better structural strength and reliability. It also has better resistance to impact or lateral pressure from liquids or liquid-gas mixtures and reduces the risk of detachment due to tension and thermal expansion and contraction. In addition, the size configuration between the inner and outer diameters of the end sections 112 of the pipe body 11 and the concave portions 1111 and convex portions 1112 of the main body section 111 can reduce the flow resistance of the cooling fluid and increase the flow efficiency, thereby further improving the heat dissipation performance.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the present utility model's technical solution shall still fall within the scope of the present utility model's technical solution.

Claims

1. A connecting pipe for use in a radiator, characterized in that, The connecting pipe includes: A tube body, which has: A body segment, the wall of which is formed with a plurality of circumferentially extending recesses and a plurality of circumferentially extending protrusions, each recess being radially inwardly recessed and each protrusion being radially outwardly protruding, the recesses and protrusions being alternately arranged along the length of the body segment to form a corrugated structure; and Two end sections, respectively connected to opposite ends of the main body section, and each end section is a flat cylindrical shape, the two end sections being interconnected through the main body section; and Two connectors, each connector having an access portion, the access portion being a flat cylindrical shape, and the two end sections being welded to the access portions of the two connectors respectively.

2. The connecting pipe according to claim 1, characterized in that: The two end sections of the pipe are respectively fitted onto the access portions of the two connectors, and the inner circumferential surface of each end section is connected to the outer circumferential surface of the corresponding access portion by welding.

3. The connecting pipe according to claim 1 or 2, characterized in that, The outer diameter of each end segment is between the minimum outer diameter of each recess and the maximum outer diameter of each protrusion of the body segment.

4. The connecting pipe according to claim 2, characterized in that, Each of these joints further has: A stop portion protrudes from the outer peripheral surface of the access portion, and the periphery of the opening of the corresponding end segment abuts against the stop portion.

5. A radiator, characterized in that, Include: A connecting pipe as described in any one of claims 1 to 4; A heat sink, which is connected to and communicates with one of the connectors of the connecting pipe; and A branch pipe that connects to and communicates with another connector of the connecting pipe.

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