Liquid-cooled heat dissipation structure

Abstract

The utility model provides a liquid-cooled heat dissipation structure, which comprises at least one liquid-cooled heat dissipation module, the liquid-cooled heat dissipation module comprises a plurality of liquid-cooled heat dissipation elements and at least one conduit unit, the liquid-cooled heat dissipation elements are used for being in contact with an optical module for heat conduction, and each liquid-cooled heat dissipation element is provided with an interface part; and the guide pipe unit comprises a guide pipe and a pair of sealing pieces, two ends of the guide pipe are respectively provided with a connecting part, the pair of sealing pieces are respectively arranged on the connecting parts, and the guide pipe unit is connected with the interface parts through the connecting parts and the sealing pieces of the guide pipe, so that the liquid cooling heat dissipation elements are connected in series. Therefore, liquid cooling heat dissipation can be provided for the optical module through the liquid cooling heat dissipation module.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heat dissipation structure, especially to a liquid cooling heat dissipation structure. BACKGROUND

[0002] In response to the big data cloud data center transmission solution, the optical module is born to meet the market demand for high-speed transmission pluggable solution, OSFP, QSFP is the mainstream packaging specification of high-speed transmission at present, and the transmission rate can provide a bandwidth of up to 400Gb / s or more, although the data capacity is maximized, but OSFP, QSFP heat dissipation aspect to the user operating environment temperature condition restriction and transmission performance has brought great challenge. Generally, the heat dissipation of optical module cannot be simply solved by air cooling; therefore, how to solve the heat generated by the optical module, and must be in the existing small or limited space environment (such as data center cabinet), the technical problem of reaching the heat dissipation, is the direction of the present invention and the related industry of the present invention. SUMMARY

[0003] Therefore, in order to effectively solve the above problems, the purpose of the utility model is to provide a liquid cooling heat dissipation structure used in limited space and conducive to assembly.

[0004] In order to achieve the above purpose, the utility model provides a liquid cooling heat dissipation structure, which comprises at least one liquid cooling heat dissipation module, the liquid cooling heat dissipation module comprises a plurality of liquid cooling heat dissipation elements provided with an interface part, and a pipe unit for connecting each liquid cooling heat dissipation element, wherein the pipe unit comprises a pipe and a pair of sealing elements, the pipe is provided with a connecting part at both ends, and the sealing elements are arranged on the connecting part, and the pipe unit connects a plurality of liquid cooling heat dissipation elements together by the connecting part and the sealing elements of the pipe.

[0005] Among them, the interface part on one of the liquid cooling heat dissipation elements and the interface part on the other liquid cooling heat dissipation element are transversely spaced apart from each other, the pipe comprises a transverse pipe body and the connecting part provided at both ends of the transverse pipe body, and the both ends of the transverse pipe body are inserted into the interface part through the connecting part and the sealing element, so as to transversely position the transverse pipe body between the two liquid cooling heat dissipation elements.

[0006] Among them, the sealing element is covered on the connecting part, the interface part has a connecting port, the diameter of the connecting port is greater than or equal to the diameter of the connecting part and less than the outer diameter of the sealing element.

[0007] Among them, the connecting part is a convex ring, and the sealing element comprises an annular groove, the annular groove covers the convex ring, so as to fix the sealing element on the convex ring.

[0008] The sealing member includes an outer ring portion, an inner ring portion, and an abutting ring portion connecting the outer ring portion and the inner ring portion. The annular groove is surrounded by the abutting ring portion, the outer ring portion, and the inner ring portion. The outer ring portion covers the outside of the convex ring. The inner ring portion covers the inside of the convex ring. The abutting ring portion covers the top side of the convex ring.

[0009] The outer ring portion has an outer opening. The inner ring portion has an inner opening. The abutting ring portion has the annular groove. The annular groove communicates the outer opening and the inner opening. The connecting portion of the conduit has an opening. The outer opening is larger than the opening. The inner opening is larger than the outer opening.

[0010] The interface portion includes a retreat-preventing wall, a recessed wall, a limiting wall, and a receiving space surrounded by the retreat-preventing wall, the recessed wall, and the limiting wall. The inner diameter of the recessed wall is less than or equal to the outer diameter of the abutting ring portion.

[0011] The thickness of the sealing member is less than the axial length of the receiving space.

[0012] The outer ring portion has an assembly chamfer. The inner ring portion has a disengagement chamfer. The abutting ring portion has an abutting flat surface. The abutting flat surface abuts against the recessed wall.

[0013] Each liquid cooling heat dissipation element includes a base and an upper cover arranged on the base. At least one flow channel is arranged in the base. The flow channel is communicated with the conduit through the interface portion. Each liquid cooling heat dissipation element is provided with a heat exchange area. The heat exchange area is arranged on the base or the upper cover. The heat exchange area is provided for an electronic element.

[0014] Therefore, the liquid cooling heat dissipation structure can provide liquid cooling heat dissipation for the optical module of the exchanger in a small or limited space such as a cabinet (for example, a data center). BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a perspective exploded view of a liquid cooling heat dissipation structure according to the present application.

[0016] Figure 2 FIG. 2 is another perspective exploded view of the liquid cooling heat dissipation structure according to the present application.

[0017] Figure 3 FIG. 3 is a perspective assembled view of the liquid cooling heat dissipation structure according to the present application.

[0018] Figure 4 It is the cross section schematic view of the pipe unit in the liquid cooling heat dissipation structure of the utility model;

[0019] Figure 5 It is the cross section schematic view of the pipe unit in the liquid cooling heat dissipation structure of the utility model;

[0020] Figure 6 It is the cross section schematic view of the pipe unit in the liquid cooling heat dissipation structure of the utility model;

[0021] Figure 7 It is the cross section schematic view of the pipe unit in the liquid cooling heat dissipation structure of the utility model.

[0022] Explanation of reference signs; Liquid cooling heat dissipation module 1; Liquid cooling heat dissipation element 11; Interface part 110; Connection port 1100; Retraction stop wall 1101; Concave interface wall 1102; Limiting wall 1103; Containing space 1104; Base 111; Upper cover 112; Flow channel 113; Heat exchange area 114; Pipe unit 2; Pipe 21; Connection part 210; Opening 2100; Transverse pipe body 211; Sealing member 22; Annular groove 220; Outer side ring part 221; Outer side opening 2210; Assembly chamfer 2211; Abutting ring part 222; Abutting plane 2221; Inner side ring part 223; Inner side opening 2230; Separation chamfer 2231; Heat generating member 3; Liquid cooling connector 4; Liquid cooling heat dissipation structure 90; Axial length L. DETAILED DESCRIPTION

[0023] The above-mentioned purposes of the utility model and the characteristics of its structure and function will be described according to the preferred embodiments of the accompanying drawings.

[0024] As Figures 1 to 5 Indicated, the utility model provides a liquid cooling heat dissipation structure 90, it includes: at least one liquid cooling heat dissipation module 1, the liquid cooling heat dissipation module 1 includes multiple liquid cooling heat dissipation elements 11 and at least one pipe unit 2, wherein the liquid cooling heat dissipation element 11 is equipped with an interface part 110 and is internally provided with flow channel, connects the liquid cooling heat dissipation module 1, wherein the pipe unit 2 includes a pipe 21 and a pair of sealing members 22, the pipe 21 both ends are equipped with a connection part 210, the pair of sealing members 22 are arranged on the connection part 210, the pipe unit 2 is connected the interface part 110 using the connection part 210 and the sealing member 22 of the pipe 21, to connect two liquid cooling heat dissipation elements 11 in series.

[0025] In the present embodiment, the interface portion 110 on one liquid cooling heat dissipation element 11 in the liquid cooling heat dissipation module 1 is laterally opposite to the interface portion 110 on another liquid cooling heat dissipation element 11. The conduit 21 includes a lateral pipe body 211 and the connecting portion 210 arranged at both ends of the lateral pipe body 211. Both ends of the lateral pipe body 211 are inserted into the interface portion 110 through the connecting portion 210 and the sealing member 22, so as to laterally position the lateral pipe body 211 between the two liquid cooling heat dissipation elements 11. However, the present embodiment is not limited thereto. Two or more interface portions 110 can be arranged on one liquid cooling heat dissipation element 11, so that multiple liquid cooling heat dissipation elements 11 can be connected through multiple interface portions 110 and multiple conduits 21. In the present embodiment, two interface portions 110 are arranged on each liquid cooling heat dissipation element 11, so that the liquid cooling heat dissipation element 11 can be connected to the liquid cooling heat dissipation element 11 in front or behind through the two interface portions 110 and the conduit 21.

[0026] It can be understood that, in the present embodiment, the sealing member 22 is wrapped on the connecting portion 210. The interface portion 110 has a connecting port 1100, and the diameter of the connecting port 1100 is greater than or equal to the diameter of the connecting portion 210 and less than the outer diameter of the sealing member 22. Therefore, the connecting portion 210 can be smoothly inserted into the interface portion 110 through the connecting port of the interface portion 110. Since the sealing member 22 has a resilient structure, the sealing member 22 can be smoothly inserted into the interface portion 110 even though the outer diameter of the sealing member 22 is greater than the diameter of the connecting port of the interface portion 110, by applying pressure to make the sealing member 22 elastically deform.

[0027] In the present embodiment, the connecting portion 210 is a convex ring extending radially along the lateral pipe body 211, and the sealing member 22 is a ring-shaped sealing ring including a ring-shaped groove 220. The ring-shaped groove 220 can wrap the convex ring to fix the ring-shaped sealing ring on the convex ring and wrap the outer edge of the convex ring. In the present embodiment, the cross section of the convex ring is a semicircle, and the cross section of the ring-shaped groove 220 is a semicircle. However, the present embodiment is not limited thereto. The cross section of the convex ring can be an ellipse or other circular arc, and the cross section of the ring-shaped groove 220 corresponds to the ellipse or other circular arc of the convex ring. It can be understood that the convex ring with a semicircular cross section has a semicircular surface on the inner and outer sides, which is beneficial for inserting the connecting portion 210 into the interface portion 110.

[0028] In addition, in the present embodiment, the seal 22 comprises an outer ring portion 221, an inner ring portion 223, and an abutting ring portion 222 connecting the outer ring portion 221 and the inner ring portion 223, and the annular groove 220 is surrounded by the abutting ring portion 222, the outer ring portion 221, and the inner ring portion 223, and the outer ring portion 221 covers the outer side of the convex ring, the inner ring portion 223 covers the inner side of the convex ring, and the abutting ring portion 222 covers the top side of the convex ring. Furthermore, the outer ring portion 221 has an outer opening 2210, the inner ring portion 223 has an inner opening 2230, the abutting ring portion 222 has the annular groove 220, and the annular groove 220 is in communication with the outer opening 2210 and the inner opening 2230. It can be understood that, since the inner opening 2230 is larger than the outer opening 2210, when the seal 22 is to be fitted on the connecting portion 210 of the conduit 21, the connecting portion 210 can be inserted through the inner ring portion 223 into the annular groove 220 of the abutting ring portion 222 through the larger inner opening 2230, and is blocked by the outer ring portion 221 having the relatively smaller outer opening 2210.

[0029] It is worth mentioning that, in the present embodiment, the outer opening 2210 of the outer ring portion 221 of the seal 22 covering the connecting portion 210 is larger than the opening 2100 of the connecting portion 210, so that the working fluid flowing through the opening 2100 of the connecting portion 210 is not hindered by the part of the outer ring portion 221, and the area of the outer ring portion 221 contacting the working fluid can be reduced to reduce the deterioration of the outer ring portion 221 due to the influence of the working fluid. In addition, the outer ring portion 221 has an assembly chamfer 2211, and the inner ring portion 223 has a disassembly chamfer 2231, and through the design of the assembly chamfer 2211 or the disassembly chamfer 2231, the seal 22 can be smoothly assembled into the interface portion 110 or disassembled from the interface portion 110.

[0030] In the present embodiment, the interface portion 110 comprises a stop wall 1101, a recess wall 1102, a limiting wall 1103, and a receiving space 1104 formed by the stop wall 1101, the recess wall 1102, and the limiting wall 1103. The inner diameter of the recess wall 1102 is less than or equal to the outer diameter of the sealing member 22, or the inner diameter of the recess wall 1102 is less than or equal to the outer diameter of the abutting ring portion 222. As previously described, when the sealing member 22 is inserted into the interface portion 110, it will first pass through the connecting port 1100 of the interface portion 110 surrounded by the stop wall 1101. The diameter of the connecting port 1100 is less than the inner diameter of the recess wall 1102, so the sealing member 22 with a larger outer diameter is compressed and deformed to pass through the connecting port 1100 of the interface portion 110, and then enters the receiving space 1104 so that the sealing member 22 can expand to recover to a larger outer diameter, and the stop wall 1101 can smoothly block the sealing member 22 to prevent it from being easily removed. It can be understood that, since the working fluid flows in the interface portion 110 and the conduit 21, in order to achieve good fluid leakage prevention effect of the sealing member 22, the inner diameter of the recess wall 1102 is designed to be less than or equal to the outer diameter of the sealing member 22, or the inner diameter of the recess wall 1102 is less than or equal to the outer diameter of the abutting ring portion 222, so that the sealing member 22 or the abutting flat surface 2221 on the abutting ring portion 222 can be radially abutted to the recess wall 1102 without fluid leakage.

[0031] It is worth mentioning that, in the present embodiment, the thickness of the sealing member 22 is less than the axial length L of the receiving space 1104, so that the sealing member 22 can slide horizontally and axially in the receiving space 1104. Therefore, when the two liquid cooling heat dissipation elements 11 arranged adjacent to each other float up and down, the sealing member 22 slides horizontally and axially in the receiving space 1104, and the sealing member 22 itself has compressible and deformable properties, thereby offsetting the displacement amount caused by the up and down floating of the two liquid cooling heat dissipation elements 11. In the present embodiment, the sealing member 22 is made of an elastic material, which can be an O-ring. The conduit 21 is a circular tubular body made of a metal material, which can be iron, stainless steel, copper, aluminum, titanium, alloy, or a combination of any of the foregoing metal materials.

[0032] It can be understood that the outer ring part 221 and the inner ring part 223 of the sealing member 22 described above can be a semicircular design, which only deforms when the liquid cooling heat dissipation element 11 is misaligned, so as not to leak liquid. In addition, the semicircular waterproof rubber ring of the sealing member 22 is the most basic configuration in this design. Because the sealing member 22 is a waterproof rubber ring, it has compressible properties, so in other embodiments, the waterproof rubber ring configuration can be a flat, oval, or other shape, which can be applied to the utility model, and it can also meet the specifications required. In addition, since the conduit 21 has sufficient strength, it is sufficient to support the sealing member 22, so that it has good mechanical strength, and at the same time supports the sealing properties of the sealing member 22.

[0033] In addition, in the present embodiment, the liquid cooling heat dissipation element 11 can be a water cooling plate, and each liquid cooling heat dissipation element 11 includes a base 111 and an upper cover 112 disposed on the base 111, and at least one flow channel 113 is provided in the base 112, and the flow channel 113 is communicated with the conduit 21 through the interface part 110. Furthermore, each of the liquid cooling heat dissipation elements 11 is provided with a heat exchange area 114, which is located on at least one of the base 111 or the upper cover 112, and the heat exchange area 114 is provided for an electronic element, such as a heat generating member 3, which can be a light module.

[0034] Please refer to Figures 6 to 7 As shown in the utility model, in another embodiment of the utility model, a liquid cooling connector 4 is provided to be connected to the interface part 110 of a liquid cooling heat dissipation element 11, and the liquid cooling connector (cold water inlet) 4 provides working liquid to be injected into the liquid cooling heat dissipation element 11 through the interface part 110, and the working liquid flows downward into the flow channel 113 of the base 111, so that the working liquid flows in the flow channel 113 of the liquid cooling heat dissipation element 11, and then flows out from the interface part 110 on the other side to the next liquid cooling heat dissipation element 11. Therefore, by such arrangement, after the working liquid enters the liquid cooling heat dissipation element 11, the working liquid flows into the flow channel 113 of the liquid cooling heat dissipation element 11, so that the working liquid exchanges heat with the heat exchange area 114 of the liquid cooling heat dissipation element 11, thereby taking away the heat absorbed by the heat generating member 3 in the heat exchange area 114, and making the heat exchange area 114 achieve the heat dissipation effect.

[0035] Afterwards, the working liquid flows through the conduit unit 2 again, enters another liquid cooling heat dissipation element 11 through the interface part 110, and flows to the flow channel 113 in the liquid cooling heat dissipation element 11 due to the flow channel 113 arranged in the liquid cooling heat dissipation element 11, and then flows out through the other side interface part 110. After the working liquid enters the liquid cooling heat dissipation element 11, the working liquid flows to the flow channels 41 in the liquid cooling heat dissipation element 11, so that the working liquid and the heat exchange area 114 of the liquid cooling heat dissipation element 11 can quickly exchange heat and dissipate heat, thereby taking away the heat absorbed by the heat exchange area 114 and the heat generating components 3, and cooling the heat exchange area 114, and then flowing out through the other side interface part 110. Therefore, through the continuous connection, one liquid cooling heat dissipation element 11 can be connected to the next liquid cooling heat dissipation element 11, so that the liquid cooling heat dissipation structure can be continuously expanded, as shown in Figure 6

[0036] In summary, the liquid cooling heat dissipation structure is used to connect the liquid cooling heat dissipation module through the conduit unit, so that the working liquid flows from one liquid cooling heat dissipation element to another liquid cooling heat dissipation module through the conduit unit. The working liquid flows in the liquid cooling heat dissipation element, takes away the heat energy of the optical module, and achieves the purpose of heat dissipation. Therefore, the liquid cooling heat dissipation structure can provide liquid cooling heat dissipation for the optical module of the exchanger in a small or limited space such as a cabinet (for example, a data center).

[0037] The above has described the utility model in detail, and the above is only a preferred embodiment of the utility model, and should not limit the scope of the utility model. That is, any equivalent changes and modifications made according to the utility model should still belong to the patent coverage of the utility model.​

Claims

1. A liquid cooling structure, characterized by comprising: The application relates to a liquid cooling module and a pipe unit. The liquid cooling module comprises a plurality of liquid cooling elements, and each of the liquid cooling elements is provided with at least one interface part. The pipe unit is connected to the liquid cooling module, and comprises a pipe and a pair of sealing members.

2. The liquid cooling structure according to claim 1, wherein: The pipe unit is connected to the interface parts by the pipe and the sealing members.

3. The liquid cooling structure according to claim 1, wherein: The interface part on one of the liquid cooling elements is horizontally spaced apart from the interface part on another of the liquid cooling elements.

4. The liquid cooling structure according to claim 1, wherein: The pipe comprises a horizontal pipe body and the connecting parts arranged at the two ends of the horizontal pipe body.

5. The liquid cooling structure according to claim 4, wherein: The sealing member is arranged on the connecting part.

6. The liquid cooling structure according to claim 5, wherein: The interface part is provided with a connecting hole, and the diameter of the connecting hole is greater than or equal to the diameter of the connecting part and smaller than the outer diameter of the sealing member.

7. The liquid cooling structure according to claim 5, wherein: The connecting part is a convex ring, and the sealing member comprises an annular groove.

8. The liquid cooling structure according to claim 7, wherein: The annular groove is arranged on the convex ring to fix the sealing member on the convex ring.

9. The liquid cooling structure according to claim 7, wherein: The sealing member comprises an outer ring part, an inner ring part and an abutting ring part connecting the outer ring part and the inner ring part.

10. The liquid cooling structure according to claim 1, wherein: The annular groove is formed by the abutting ring part, the outer ring part and the inner ring part. The outer ring part is arranged outside the convex ring, the inner ring part is arranged inside the convex ring, and the abutting ring part is arranged on the top side of the convex ring. The outer ring part is provided with an outer opening, the inner ring part is provided with an inner opening, and the abutting ring part is provided with the annular groove. The outer opening is greater than the opening, and the inner opening is greater than the outer opening. The interface part comprises a stop wall, a concave wall, a limiting wall and a containing space formed by the stop wall, the concave wall and the limiting wall. The inner diameter of the concave wall is smaller than or equal to the outer diameter of the abutting ring part. The thickness of the sealing member is smaller than the axial length of the containing space. The outer ring part is provided with an assembly chamfer, the inner ring part is provided with a separation chamfer, and the abutting ring part is provided with an abutting plane. Each of the liquid cooling elements comprises a base and an upper cover arranged on the base. The base is provided with at least one flow channel, and the flow channel is connected to the pipe through the interface part. Each of the liquid cooling elements is provided with a heat exchange area. The heat exchange area is arranged on the base or the upper cover, and an electronic element is arranged on the heat exchange area.

Images