A liquid cooling system

Abstract

Embodiments of the present application provide a liquid cooling system, which comprises a cold plate and a bellows. The cold plate has a mounting hole, and an inner wall of the mounting hole has a connecting groove. An outer wall of the bellows has a connecting section. The connecting groove is helical, the connecting section is helical, and the connecting section is screwed with the connecting groove and fixed to the inner wall of the connecting groove. In this scheme, the cold plate and the bellows are screwed, and accurate positioning of the cold plate and the bellows during installation is achieved. After the connecting section of the bellows is screwed into the connecting groove of the cold plate by a certain length, the cold plate and the bellows can be fixedly connected through welding or other methods, improving the connection reliability between the cold plate and the bellows. The liquid cooling system provided by the present application can improve the aging of the sealing ring and other problems that are prone to occur in the traditional connection method, improve the connection reliability between the cold plate and the bellows, and reduce the risk of cooling liquid leakage.

Description

Technical Field

[0001] This utility model relates to the field of liquid cooling technology, and in particular to a liquid cooling system. Background Technology

[0002] Liquid cooling systems typically consist of a liquid cooling plate and a bellows connected to the plate. Currently, the traditional connection method for the cold plate and bellows mostly involves welding the bellows to a metal connector, which is then mechanically connected to the cold plate and sealed with a sealing ring. However, this traditional connection method is prone to problems such as sealing ring aging, increasing the unreliability of the connection between the cold plate and the bellows and leading to coolant leakage. Utility Model Content

[0003] This application provides a liquid cooling system that can improve the problems such as aging of the sealing ring that are prone to occur in traditional connection methods, improve the connection reliability between the cold plate and the bellows, and reduce the risk of coolant leakage.

[0004] This application provides a liquid cooling system, which includes a cold plate and a bellows.

[0005] The cold plate has mounting holes, and the inner wall of the mounting holes has connecting grooves. The outer wall of the corrugated pipe has connecting sections.

[0006] The connecting groove is helical, the connecting segment is helical, the connecting segment can be screwed into the connecting groove, and the connecting segment can be fixedly connected to the inner wall of the connecting groove.

[0007] Optionally, the connecting segment screwed into the connecting groove can be welded or bonded to the inner wall of the connecting groove.

[0008] Optionally, the connecting segment has a first protrusion and a first recess, the first protrusion and the first recess being arranged in a spiral shape, and the connecting groove has a second protrusion and a second recess, the second protrusion and the second recess being arranged in a spiral shape, the first protrusion being embedded in the second recess, and the second protrusion being embedded in the first recess.

[0009] The first recess and the second protrusion are in an interference fit.

[0010] Optionally, a gap is provided between the top of the first protrusion and the bottom wall of the second recess, the gap being used to accommodate solder or colloid.

[0011] Optionally, the melting point of the solder is lower than that of the cold plate and the bellows.

[0012] Optionally, the first protrusion and the first recess are arranged in a group, the connecting segment has multiple groups of the first protrusion and the first recess, the second protrusion and the second recess are arranged in a group, and the inner wall of the connecting groove has multiple groups of the second protrusion and the second recess;

[0013] When the connecting segment is screwed into the connecting groove, at least three sets of the first protrusions and the first recesses respectively engage with at least three sets of the second recesses and the second protrusions.

[0014] Optionally, the inner diameter of the mounting hole is greater than or equal to the outer diameter of the bellows.

[0015] Optionally, the liquid cooling system includes at least two bellows, and the cold plate includes at least two connecting grooves.

[0016] Optionally, the cold plate includes a body and an adapter, the adapter being welded to the body, and the connecting groove being disposed on the adapter.

[0017] Optionally, the adapter has an inclined first guide surface at the end facing the body, and the body has an inclined second guide surface facing the mounting hole, wherein the first guide surface abuts against and is welded to the second guide surface.

[0018] In this design, the cold-rolled plate and the corrugated pipe are connected by threads, enabling precise positioning of the two during installation. Once the connecting section of the corrugated pipe is screwed into the connecting groove of the cold-rolled plate to a certain length, the cold-rolled plate and the corrugated pipe can be fixedly connected, improving the reliability of the connection between them.

[0019] In this embodiment, the connection method between the cold plate and the bellows allows for sealing without the need for a sealing ring, thereby avoiding a decrease in the reliability of the connection between the cold plate and the bellows due to the aging of the sealing ring, and thus reducing the risk of coolant leakage in the liquid cooling system.

[0020] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the liquid cooling system structure in an embodiment of this application;

[0022] Figure 2 This is a schematic diagram illustrating the fit between the connecting groove and the connecting segment in an embodiment of this application;

[0023] Figure 3 This is a schematic diagram of the structure of another embodiment 1;

[0024] Figure 4 This is a schematic diagram of the structure of another embodiment 2;

[0025] Figure 5 This is a schematic diagram of the cooperation between the first guide surface and the second guide surface in another embodiment 2.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1-Cold plate;

[0028] 10 - Mounting holes;

[0029] 101-Connecting slot;

[0030] 101a - Second protrusion;

[0031] 101b - Second depression;

[0032] 1011-Liquid Inlet Connection Tank;

[0033] 1012 - Liquid outlet connection tank;

[0034] 11-Ontology;

[0035] 111 - Second guide surface;

[0036] 12-Adapter;

[0037] 121 - First guide surface;

[0038] 13-Internal flow channel;

[0039] 2-Corrugated pipe;

[0040] 21-Connecting segment;

[0041] 211 - First protrusion;

[0042] 212 - First depression;

[0043] 22-Inlet bellows;

[0044] 23-Discharge bellows.

[0045] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0046] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0047] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0048] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0049] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0050] Currently, the commonly used coolant piping on the market is made of rubber and plastic tubing, which has a large bending radius and thick walls, requiring a large space for piping installation. However, rubber and plastic tubing is no longer sufficient for the application requirements of highly sealed equipment. Therefore, a metal corrugated pipe for transporting coolant is proposed. The metal corrugated pipe can achieve a smaller bending radius through plastic deformation, and its thinner wall allows for greater space savings. However, the reliability of the connection between the metal corrugated pipe and the cold plate is challenged, requiring a better connection solution to reduce the risk of leakage.

[0051] like Figure 1 and Figure 2 As shown in the figure, this application provides a liquid cooling system, which includes a cold plate 1 and a bellows 2. Coolant flows through the bellows 2 into the internal flow channels 13 of the cold plate 1 to carry away heat, achieving efficient heat dissipation. This application uses a metal bellows 2 and solves the problem of unstable pipe connections in current liquid cooling systems by using an innovative connection method between the bellows 2 and the cold plate 1, thus improving the connection reliability of the liquid cooling system.

[0052] Among them, the metal corrugated pipe 2 has the advantage of a smaller wall thickness compared to the commonly used plastic and rubber corrugated pipe 2 on the market. The metal corrugated pipe 2 can achieve a smaller bending radius through plastic deformation during the installation of the liquid cooling system, thereby achieving greater space saving.

[0053] For details, please refer to Figure 2 As shown, the cold plate 1 has mounting holes, and the inner wall of the mounting holes has a connecting groove 101. The outer wall of the bellows 2 has a connecting section 21. The connecting groove 101 is spiral-shaped, the connecting section 21 is spiral-shaped, and the connecting section 21 is screwed to the connecting groove 101 and fixed to the inner wall of the connecting groove 101.

[0054] In this embodiment, the cold plate 1 and the bellows 2 are threaded together, achieving precise positioning of the cold plate 1 and the bellows 2 during installation. After the connecting section 21 of the bellows 2 is screwed into the connecting groove 101 of the cold plate 1 to a certain length, the cold plate 1 and the bellows 2 can be fixedly connected by welding or other methods, improving the connection reliability between the cold plate 1 and the bellows 2. The connection method of the cold plate 1 and the bellows 2 in this embodiment allows for sealing between the cold plate 1 and the bellows 2 without the need for a sealing ring, thereby avoiding a decrease in the connection reliability of the cold plate 1 and the bellows 2 due to the aging of the sealing ring, and thus reducing the risk of coolant leakage in the liquid cooling system.

[0055] In addition, the liquid cooling system in this embodiment may also include a water distributor. When the coolant needs to be diverted by the water distributor before flowing into the cold plate 1, this solution is also applicable to the connection between the bellows 2 and the water distributor, that is, the water distributor is provided with a connection groove 101 that is compatible with the bellows 2.

[0056] In some embodiments, the connecting segment 21 screwed into the connecting groove 101 can be welded or bonded to the inner wall of the connecting groove 101.

[0057] Specifically, the corrugated pipe 2 and the cold plate 1 are connected by welding or bonding. The welding connection can be achieved through brazing, rotary friction welding, laser welding, argon arc welding, ultrasonic welding, etc. This application does not limit the specific connection method between the corrugated pipe 2 and the cold plate 1.

[0058] In this embodiment, the bellows 2 and the cold plate 1 are connected by welding or bonding, which improves the reliability of the connection between the bellows 2 and the cold plate 1. Compared with the connection method of using a sealing ring between the bellows 2 and the cold plate 1, the connection method of this application has higher reliability and reduces the risk of coolant leakage in the connection between the bellows 2 and the cold plate 1. After the connection, there is no need to set a sealing ring between the bellows 2 and the cold plate 1 for sealing.

[0059] In some embodiments, such as Figure 2 As shown, the connecting segment 21 has a first protrusion 211 and a first recess 212, which are spirally distributed. The connecting groove 101 has a second protrusion 101a and a second recess 101b, which are also spirally distributed. The first protrusion 211 is embedded in the second recess 101b, and the second protrusion 101a is embedded in the first recess 212, thus achieving a threaded fit between the connecting segment 21 and the connecting groove 101. That is, the pitch of the thread in the connecting segment 21 and the connecting groove 101 is the same as the thread direction.

[0060] The first recess 212 and the second protrusion 101a are in an interference fit.

[0061] In this embodiment, the connecting section 21 of the bellows 2 and the connecting groove 101 of the cold plate 1 are threaded. Threaded connections have high connection strength and reliability, good adaptability to dynamic environments, and can prevent shock and loosening, thereby improving connection stability. The threaded connection also distributes stress evenly, reducing stress concentration and extending the service life of the liquid cooling system. The interference fit between the first recess 212 and the second protrusion 101a, through a preset interference amount, ensures a tight fit between the internal and external threads, effectively improving the connection strength between the bellows 2 and the cold plate 1, and further reducing the risk of coolant leakage between the bellows 2 and the cold plate 1.

[0062] In some embodiments, such as Figure 2 As shown, there is a gap between the top of the first protrusion 211 and the bottom wall of the second recess 101b, the gap being used to accommodate solder or colloid.

[0063] Specifically, there is a gap between the top of each first protrusion 211 and the bottom wall of the corresponding second recess 101b, and the gap can accommodate sufficient solder or adhesive. Generally, solder or adhesive fills each gap. Since the connecting segment 21 has multiple first protrusions 211 and the inner wall of the connecting groove 101 has multiple second recesses 101b, there are multiple welding or bonding positions between the connecting segment 21 and the connecting groove 101 when they are connected.

[0064] In this embodiment, the gap between the top of the first protrusion 211 and the bottom wall of the second recess 101b provides ample space for solder or adhesive. When the connecting section 21 is welded or bonded to the inner wall of the connecting groove 101, the solder or adhesive can fill the gap, thereby enhancing the connection strength at the gap while realizing the connection between the bellows 2 and the cold plate 1, and improving the reliability of the connection between the bellows 2 and the cold plate 1.

[0065] In some embodiments, the melting point of the solder is lower than that of the cold plate 1 and the bellows 2.

[0066] The bellows 2 and the cold plate 1 can be connected by brazing, that is, the connection is achieved only through the melting of the brazing filler metal and capillary action, and the bellows 2 and the cold plate 1 do not melt during the connection process. This improves the strength of the bellows 2 and the cold plate 1, and also achieves an effective connection between the bellows 2 and the cold plate 1.

[0067] In this embodiment, the cold plate 1 and the bellows 2 can be made of the same type of metal or different types of metal. When the cold plate 1 and the bellows 2 are made of the same type of metal, their melting points are close and both are higher than the melting point of the solder; when the cold plate 1 and the bellows 2 are made of different types of metal, their melting points are both higher than the melting point of the solder. Preferably, the cold plate 1 and the bellows 2 can be made of metals with relatively close melting points.

[0068] In some embodiments, such as Figure 2 As shown, the first protrusion 211 and the first recess 212 are arranged in groups, the connecting section 21 has multiple groups of first protrusions 211 and first recesses 212, the second protrusions 101a and the second recesses 101b are arranged in groups, and the inner wall of the connecting groove 101 has multiple groups of second protrusions 101a and second recesses 101b.

[0069] When the connecting segment 21 is screwed into the connecting groove 101, at least three sets of first protrusions 211 and first recesses 212 respectively engage with at least three sets of second recesses 101b and second protrusions 101a.

[0070] In this embodiment, at least three sets of the first protrusions 211 and the first recesses 212 in the connecting segment 21 are screwed into the connecting groove 101 and cooperate with the second recesses 101b and the second protrusions 101a, which ensures the connection strength between the connecting segment 21 and the connecting groove 101 and improves the connection reliability between the connecting segment 21 and the connecting groove 101.

[0071] In the above embodiments, such as Figure 1 and Figure 2 As shown, the inner diameter of the mounting hole is greater than or equal to the outer diameter of the bellows 2.

[0072] In this embodiment, the inner diameter of the mounting hole is greater than or equal to the outer diameter of the bellows 2, providing sufficient installation space for the connecting section 21 to be smoothly screwed into the connecting groove 101.

[0073] In the above embodiments, such as Figure 1 As shown, the liquid cooling system includes an inlet bellows 22 and an outlet bellows 23. The cold plate 1 has an inlet and an outlet, which are the mounting holes 10 shown above.

[0074] Specifically, the inlet and outlet are connected to the connecting groove 101. Coolant flows in through the inlet, passes through the internal flow channel 13 in the cold plate 1, and then flows out through the outlet. The liquid cooling system includes an inlet bellows 22 and an outlet bellows 23. The inlet bellows 22 is used to input coolant into the inlet, allowing the coolant to enter the internal flow channel 13 of the cold plate 1. The outlet bellows 23 is used to discharge coolant from the outlet, allowing the coolant to exit from the internal flow channel 13 of the cold plate 1. In this embodiment, the specific number of bellows 2 can be two. In other embodiments, the number of bellows 2 can also be four, six, etc. This application does not limit the specific number of bellows 2.

[0075] The liquid cooling system also includes at least two connection slots 101, namely, the liquid cooling system includes at least one inlet connection slot 1011 for inputting coolant into the internal flow channel 13 of the cold plate 1, and at least one outlet connection slot 1012 for discharging coolant from the internal flow channel 13 of the cold plate 1. The inlet connection slot 1011 is connected to the inlet bellows 22, and the outlet connection slot 1012 is connected to the outlet bellows.

[0076] In this embodiment, the specific number of connecting slots 101 can be two. In other embodiments, the number of connecting slots 101 can also be four, six, etc., and this application does not limit the specific number of connecting slots 101.

[0077] In this embodiment, at least two bellows 2 and at least two connecting grooves 101 are provided so that the coolant in the liquid cooling system has a complete flow path, thereby improving the heat dissipation efficiency of the liquid cooling system in this application.

[0078] In some other embodiments, such as Figures 3 to 5 As shown, when the bellows 2 and the cold plate 1 are made of different metals, resulting in a large difference in their melting points, an adapter 12 can be added between the bellows 2 and the cold plate 1. The added adapter 12 has a melting point similar to that of the bellows 2, which enables the connection between the adapter 12 and the bellows 2 to meet the applicable conditions for brazing, bonding, and other methods.

[0079] in, Figure 3 and Figure 4 These are other embodiments one and other embodiments two, respectively.

[0080] Specifically, such as Figure 3 and Figure 4 As shown, the cold plate 1 includes a body 11 and an adapter 12. The adapter 12 is welded to the body 11, and the connecting groove 101 is provided in the adapter 12.

[0081] The adapter 12 enables the connection between the bellows 2 and the cold plate 1 to be unrestricted by the melting point of the material. The connecting groove 101 is provided in the adapter 12. After the connector is threaded to the bellows 2, it is welded or bonded. Subsequently, the connector and the body 11 can be connected by means of rotational friction welding or other methods. This application does not limit the specific connection method between the connector and the body 11.

[0082] In other embodiments of the second type, such as Figure 5 As shown, the end of the adapter 12 facing the body 11 has an inclined first guide surface 121, and the body 11 has an inclined second guide surface 111 facing the mounting hole. The first guide surface 121 and the second guide surface 111 abut and are welded together.

[0083] In another embodiment, the first guide surface 121 and the second guide surface 111 are connected to enable precise positioning when the connector is connected to the body 11, thereby improving the connection stability between the connector and the body 11.

[0084] The above descriptions are merely specific implementations of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the embodiments of this application should be covered within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.

Claims

1. A liquid cooling system, characterized in that, The liquid cooling system includes: Cold plate (1), the cold plate (1) has mounting holes (10), the inner wall of the mounting holes (10) has a connecting groove (101); A bellows (2), the outer wall of which has a connecting section (21); The connecting groove (101) is spiral-shaped, the connecting segment (21) is spiral-shaped, and the connecting segment (21) is screwed to the connecting groove (101) and fixed to the inner wall of the connecting groove (101).

2. The liquid cooling system according to claim 1, characterized in that, The connecting segment (21) screwed into the connecting groove (101) can be welded or bonded to the inner wall of the connecting groove (101).

3. The liquid cooling system according to claim 1, characterized in that, The connecting segment (21) has a first protrusion (211) and a first recess (212), the first protrusion (211) and the first recess (212) having a spiral distribution structure. The connecting groove (101) has a second protrusion (101a) and a second recess (101b), the second protrusion (101a) and the second recess (101b) having a spiral distribution structure. The first protrusion (211) is embedded in the second recess (101b), and the second protrusion (101a) is embedded in the first recess (212). The first recess (212) and the second protrusion (101a) are in an interference fit.

4. The liquid cooling system according to claim 3, characterized in that, There is a gap between the top of the first protrusion (211) and the bottom wall of the second recess (101b), the gap being used to accommodate solder or colloid.

5. The liquid cooling system according to claim 4, characterized in that, The melting point of the solder is lower than that of the cold plate (1) and the corrugated pipe (2).

6. The liquid cooling system according to claim 3, characterized in that, The first protrusion (211) and the first recess (212) are arranged in a group, the connecting segment (21) has multiple groups of the first protrusion (211) and the first recess (212), the second protrusion (101a) and the second recess (101b) are arranged in a group, and the inner wall of the connecting groove (101) has multiple groups of the second protrusion (101a) and the second recess (101b); When the connecting segment (21) is screwed into the connecting groove (101), at least three sets of the first protrusions (211) and the first recesses (212) respectively engage with at least three sets of the second recesses (101b) and the second protrusions (101a).

7. The liquid cooling system according to any one of claims 1-6, characterized in that, The inner diameter of the mounting hole (10) is greater than or equal to the outer diameter of the bellows (2).

8. The liquid cooling system according to any one of claims 1-6, characterized in that, The liquid cooling system includes an inlet bellows (22) and an outlet bellows (23). The cold plate (1) has an inlet and an outlet, which are the mounting holes (10).

9. The liquid cooling system according to any one of claims 1-6, characterized in that, The cold plate (1) includes a body (11) and an adapter (12), the adapter (12) is welded to the body (11), and the connecting groove (101) is disposed on the adapter (12).

10. The liquid cooling system according to claim 9, characterized in that, The adapter (12) has an inclined first guide surface (121) at the end facing the body (11), and the body (11) has an inclined second guide surface (111) facing the mounting hole (10). The first guide surface (121) and the second guide surface (111) abut and are welded together.

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