Liquid cooling structure

Abstract

The present invention provides a liquid cooling heat dissipation structure, which includes at least one liquid cooling heat dissipation module, wherein the liquid cooling heat dissipation module includes a plurality of liquid cooling heat dissipation elements and at least one conduit unit for contacting and conducting heat with an optical module, each of which is provided with an interface; the conduit unit includes a conduit and a pair of sealing members, each of which is provided with a connecting portion at both ends of the conduit, and each of which is provided on the connecting portion, and the conduit unit uses the connecting portion and the sealing member of the conduit to connect each of the interface portions to connect each of the liquid cooling heat dissipation elements in series. Thus, the liquid cooling heat dissipation module can provide liquid cooling heat dissipation for the optical module.

Description

Technical Field

[0001] The invention relates to a heat dissipation structure, in particular to a liquid-cooled heat dissipation structure. Background Art

[0002] In response to the big data cloud data center transmission solution, the optical module was born to meet the market trend of high-speed transmission pluggable solutions. OSFP and QSFP are the mainstream packaging specifications for high-speed transmission. Their transmission rates can provide bandwidths of up to 400Gb / s or more. Although they maximize data capacity, the heat dissipation of OSFP and QSFP poses a huge challenge to the user's operating environment temperature conditions and transmission performance. The heat dissipation of general optical modules can no longer be solved simply by air cooling; therefore, how to solve the heat energy generated by the optical module and achieve heat dissipation in an existing small or limited space environment (such as a data center cabinet) is indeed the direction that the inventor of this case and related industry players are eager to study and improve. Summary of the invention

[0003] Therefore, in order to effectively solve the above-mentioned problems, an object of the present invention is to provide a liquid cooling heat dissipation structure that can be used in a limited space and is easy to assemble.

[0004] To achieve the above-mentioned purpose, the present invention provides a liquid-cooled heat dissipation structure, which includes at least one liquid-cooled heat dissipation module, the liquid-cooled heat dissipation module includes a plurality of liquid-cooled heat dissipation elements provided with an interface portion, and a conduit unit for connecting the liquid-cooled heat dissipation elements in series, wherein the conduit unit includes a conduit and a pair of sealing members, each of the two ends of the conduit is provided with a connecting portion, and the pair of sealing members are respectively arranged on the connecting portion, and the conduit unit uses the connecting portion of the conduit and the sealing member to connect the plurality of liquid-cooled heat dissipation elements in series.

[0005] Among them, the interface portion on one of the liquid-cooled heat dissipation elements and the interface portion on another of the liquid-cooled heat dissipation elements are arranged laterally opposite to each other and spaced apart, and the conduit includes a transverse tube body and the connecting portions arranged at both ends of the transverse tube body, and the two ends of the transverse tube body are inserted into the interface portion through the connecting portion and the sealing member to laterally position the transverse tube body between the two liquid-cooled heat dissipation elements.

[0006] The sealing member is coated on the connecting portion, and the interface portion has a connecting port, the diameter of which is greater than or equal to the diameter of the connecting portion and smaller than the outer diameter of the sealing member.

[0007] Wherein, the connecting portion is a convex ring, and the sealing member comprises an annular groove, and the annular groove covers the convex ring so as to fix the sealing member on the convex ring.

[0008] The seal comprises an outer ring portion, an inner ring portion and a supporting ring portion connecting the outer ring portion and the inner ring portion, the annular groove is formed by the supporting ring portion, the outer ring portion and the inner ring portion, and the outer ring portion covers the outer side of the convex ring, the inner ring portion covers the inner side of the convex ring, and the supporting ring portion covers the top side of the convex ring.

[0009] Among them, 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 connects the outer opening and the inner opening, the connecting portion of the catheter has an opening, the outer opening is larger than the opening, and the inner opening is larger than the outer opening.

[0010] The interface portion includes a stop wall, a recessed wall, a limiting wall, and an accommodating space surrounded by the stop 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] Wherein, the thickness of the sealing element is smaller than the axial length of the accommodating space.

[0012] The outer ring portion has an assembly chamfer, the inner ring portion has a disengagement chamfer, and the abutting ring portion has an abutting plane, which abuts against the concave wall.

[0013] Each of the liquid-cooled heat dissipation elements includes a base and an upper cover arranged on the base, at least one flow channel is arranged in the base, and the flow channel is connected to the conduit through the interface portion, and each of the liquid-cooled heat dissipation elements is provided with a heat exchange area, which is located at the base or the upper cover, and the heat exchange area is provided for an electronic component.

[0014] Thus, a liquid-cooled heat dissipation structure of the present invention is connected to the liquid-cooled heat dissipation module through the conduit unit, so that the working liquid flows in from a liquid-cooled heat dissipation element and flows through the conduit unit to another liquid-cooled heat dissipation module. The working liquid flows in the liquid-cooled heat dissipation element, and the heat energy of the optical module is taken away by the working liquid to achieve the purpose of heat dissipation. Therefore, the present case can provide liquid cooling for the optical module of the switch in a small or limited space such as a cabinet (for example, a data center) by means of the liquid-cooled heat dissipation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional exploded schematic diagram of the liquid-cooled heat dissipation structure of the present invention;

[0016] Figure 2 It is a three-dimensional exploded schematic diagram of the liquid-cooled heat dissipation structure of the present invention from another angle;

[0017] Figure 3 It is a schematic diagram of the three-dimensional combined appearance of the liquid-cooled heat dissipation structure of the present invention;

[0018] Figure 4 is a cross-sectional schematic diagram of a conduit unit in a liquid-cooled heat dissipation structure of the present invention;

[0019] Figure 5 It is a partial cross-sectional schematic diagram of the liquid-cooled heat dissipation structure of the present invention;

[0020] Figure 6 It is a schematic diagram of the appearance of another embodiment of the liquid cooling heat dissipation structure of the present invention;

[0021] Figure 7 It is a cross-sectional schematic diagram of another embodiment of the liquid-cooled heat dissipation structure of the present invention.

[0022] Explanation of the reference numerals in the accompanying drawings; liquid-cooled heat dissipation module 1; liquid-cooled heat dissipation element 11; interface portion 110; connection port 1100; stop wall 1101; recessed wall 1102; limiting wall 1103; accommodating space 1104; base 111; upper cover 112; flow channel 113; heat exchange area 114; catheter unit 2; catheter 21; connection portion 210; opening 2100; transverse tube body 211; sealing member 22; annular groove 220; outer ring portion 221; outer opening 2210; assembly chamfer 2211; abutting ring portion 222; abutting plane 2221; inner ring portion 223; inner opening 2230; disengagement chamfer 2231; heat generating component 3; liquid-cooled joint 4; liquid-cooled heat dissipation structure 90; axial length L. DETAILED DESCRIPTION

[0023] The above-mentioned objects and the structural and functional characteristics of the present invention will be described based on the preferred embodiments shown in the accompanying drawings.

[0024] like Figures 1 to 5 As shown, the present invention provides a liquid-cooled heat dissipation structure 90, which includes: at least one liquid-cooled heat dissipation module 1, the liquid-cooled heat dissipation module 1 includes a plurality of liquid-cooled heat dissipation elements 11 and at least one conduit unit 2, wherein the liquid-cooled heat dissipation element 11 is provided with an interface portion 110 and a flow channel is provided inside to connect the liquid-cooled heat dissipation module 1, wherein the conduit unit 2 includes a conduit 21 and a pair of sealing members 22, each of the two ends of the conduit 21 is provided with a connecting portion 210, and the pair of sealing members 22 are respectively arranged on the connecting portion 210, and the conduit unit 2 utilizes the connecting portion 210 of the conduit 21 and the sealing member 22 to connect the interface portion 110, so as to connect two of the liquid-cooled heat dissipation elements 11 in series.

[0025] In this embodiment, the interface portion 110 on one liquid-cooling heat dissipation element 11 and the interface portion 110 on another liquid-cooling heat dissipation element 11 in the liquid-cooling heat dissipation module 1 are arranged in a horizontally opposite and spaced relationship from each other. The conduit 21 includes a horizontal tube body 211 and the connecting portions 210 provided at both ends of the horizontal tube body 211. The two ends of the horizontal tube body 211 are inserted into the interface portion 110 through the connecting portion 210 and the sealing member 22, so as to position the horizontal tube body 211 horizontally between the two liquid-cooling heat dissipation elements 11. However, it is not limited thereto, and more than two interface portions 110 may be provided on one liquid-cooling heat dissipation element 11, so that multiple liquid-cooling heat dissipation elements 11 can be connected and conducted through multiple interface portions 110 and multiple conduits 21. In this embodiment, two interface portions 110 are provided on each liquid-cooling heat dissipation element 11, so that the liquid-cooling heat dissipation element 11 can be connected and conducted with the liquid-cooling heat dissipation element 11 located in front or behind through the conduit 21 through the two interface portions 110.

[0026] It can be understood that, in this embodiment, the sealing member 22 is coated 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 smaller than the outer diameter of the sealing member 22, so that the connecting portion 210 can smoothly pass through the connecting port of the interface portion 110 and be inserted into the interface portion 110. Since the sealing member 22 has an elastic structure, although the outer diameter of the sealing member 22 is greater than the diameter of the connecting port of the interface portion 110, the sealing member 22 can be elastically deformed by applying pressure, and the sealing member 22 can also be smoothly inserted into the interface portion 110.

[0027] In the present embodiment, the connection portion 210 is a convex ring extending radially along the transverse tube body 211, and the sealing member 22 is an annular sealing ring, which includes an annular groove 220, and the annular groove 220 can cover the convex ring to fix the annular sealing ring on the convex ring and be arranged around the outer edge of the convex ring. In the present embodiment, the cross section of the convex ring is semicircular, and the cross section of the annular groove 220 is semicircular, but it is not limited to this. The cross section of the convex ring can be an ellipse or other arc, and the cross section of the annular groove 220 is an ellipse or other arc corresponding to the convex ring. It can be understood that the convex ring with a semicircular cross section is provided with semicircular surfaces on both the outer and inner sides, so it is convenient to insert the connection portion 210 into the interface portion 110.

[0028] In addition, in the present embodiment, the sealing member 22 includes an outer ring portion 221, an inner ring portion 223 and a supporting ring portion 222 connecting the outer ring portion 221 and the inner ring portion 223, and the annular groove 220 is surrounded by the supporting 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 supporting 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 connected to 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 sleeved on the connecting portion 210 of the catheter 21, the connecting portion 210 can be inserted into the annular groove 220 of the abutting ring portion 222 through the larger inner opening 2230 through the inner ring portion 223, and blocked by the outer ring portion 221 having a relatively smaller outer opening 2210.

[0029] It is worth mentioning that in this embodiment, the outer opening 2210 of the outer ring portion 221 of the seal 22 wrapped on the connection portion 210 is larger than the opening 2100 of the connection portion 210, so that the working fluid will not be blocked by the outer ring portion 221 when flowing through the opening 2100 of the connection portion 210, and the area of ​​the outer ring portion 221 in contact with the working fluid can be reduced, so as to reduce the degradation of the outer ring portion 221 due to the influence of the working fluid. In addition, there is an assembly chamfer 2211 on the outer ring portion 221, and a disengagement chamfer 2231 on the inner ring portion 223. Through the design of the assembly chamfer 2211 or the disengagement chamfer 2231, the seal 22 can be smoothly assembled and inserted into the interface portion 110 or disengaged from the interface portion 110.

[0030] In this embodiment, the interface portion 110 includes a stop wall 1101, a recessed wall 1102, a limiting wall 1103, and the stop wall 1101, the recessed wall 1102 and the limiting wall 1103 together form an accommodating space 1104, and the inner diameter of the recessed wall 1102 is less than or equal to the outer diameter of the sealing member 22, or the inner diameter of the recessed wall 1102 is less than or equal to the outer diameter of the abutting ring portion 222. As mentioned above, when the seal 22 is to be inserted into the interface portion 110, it will first pass through the connection port 1100 of the interface portion 110 surrounded by the stop wall 1101. The diameter of the connection port 1100 is smaller than the inner diameter of the recessed wall 1102, so the seal 22 with a larger outer diameter is compressed and deformed to pass through the connection port 1100 of the interface portion 110, and then enter the accommodating space 1104 to allow the seal 22 to expand and return to the larger outer diameter. At the same time, the stop wall 1101 can successfully block the seal 22 and prevent it from being easily disengaged. It can be understood that since the working fluid will flow in the interface portion 110 and the conduit 21, in order to allow the seal 22 to achieve a good effect of preventing fluid leakage, the inner diameter of the recessed wall 1102 is designed to be smaller than or equal to the outer diameter of the seal 22, or the inner diameter of the recessed wall 1102 is smaller than or equal to the outer diameter of the abutment ring portion 222, so that the seal 22 or the abutment plane 2221 on the abutment ring portion 222 can radially abut against the recessed wall 1102 without causing fluid leakage.

[0031] It is worth mentioning that in the present embodiment, the thickness of the seal 22 is less than the axial length L of the accommodating space 1104, so that the seal 22 can slide horizontally axially in the accommodating space 1104. Therefore, when two adjacent liquid-cooled heat dissipating elements 11 float up and down, the seal 22 slides horizontally axially in the accommodating space 1104, and the seal 22 itself has compressible and deformable characteristics, thereby offsetting the displacement generated by the up and down floating of the two liquid-cooled heat dissipating elements 11. In the present embodiment, the seal 22 is made of elastic material, and its material can be O-ring. The conduit 21 is a circular tubular body made of metal material, and the material is iron, stainless steel, copper, aluminum, titanium, alloy or any combination of the aforementioned metal materials.

[0032] It is understandable that the outer ring portion 221 and the inner ring portion 223 of the above-mentioned seal 22 can be semicircular in design, so that when the liquid-cooled heat dissipation element 11 is displaced, there will be an angle deformation to prevent leakage. In addition, the semicircular waterproof rubber ring of the seal 22 is the most basic configuration in this design. Because the seal 22 is a waterproof rubber ring, it has compressible properties. Therefore, in other embodiments, the waterproof rubber ring configuration is a plane, an ellipse, etc., which can be applied to the present invention and can also meet the requirements of the specifications. In addition, since the conduit 21 has sufficient strength, it is sufficient to support the seal 22, so that it has good mechanical strength, and at the same time supports the sealing properties of the seal 22.

[0033] In addition, in the present embodiment, the liquid cooling heat dissipation element 11 may be a water-cooled 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 disposed in the base 112, and the flow channel 113 is connected to the conduit 21 through the interface portion 110. Furthermore, each of the liquid cooling heat dissipation elements 11 is provided with a heat exchange area 114, and the heat exchange area 114 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 component, and the electronic component is, for example, a heat generating component 3, and the heat generating component 3 may specifically be an optical module.

[0034] See also Figure 6 to Figure 7 As shown, in another embodiment of the present invention, there is a liquid cooling joint 4 arranged to be connected to the interface portion 110 of a liquid cooling heat dissipation element 11. The liquid cooling joint (cold water inlet) 4 provides working liquid to be injected into the liquid cooling heat dissipation element 11 from the interface portion 110. The working liquid will flow downward into the flow channel 113 of the base 111, so the working liquid will flow in the flow channel 113 in the liquid cooling heat dissipation element 11, and then flow out from the interface portion 110 on the other side to the next docking liquid cooling heat dissipation element 11. Therefore, through such a configuration, 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 can exchange heat with the heat exchange area 114 of the liquid cooling heat dissipation element 11, thereby taking away the heat absorbed by the heat exchange area 114 of the heat-generating components 3, and making the heat exchange area 114 achieve the heat dissipation effect.

[0035] Afterwards, the working liquid flows through the conduit unit 2 again, and enters another liquid-cooled heat dissipation element 11 through the interface portion 110. Since a flow channel 113 is also provided in the liquid-cooled heat dissipation element 11, the working liquid will flow into the flow channel 113 in the liquid-cooled heat dissipation element 11, and then flow out through the interface portion 110 on the other side. After the working liquid enters the liquid-cooled heat dissipation element 11, the working liquid flows into the flow channels 41 of the liquid-cooled heat dissipation element 11, so that the working liquid and the heat exchange area 114 of the liquid-cooled heat dissipation element 11 can quickly exchange heat and dissipate heat, thereby taking away the heat absorbed by the heat exchange area 114 from the heating components 3, and cooling the heat exchange area 114, and then flowing out through the interface portion 110 on the other side. Therefore, through such a continuous connection setting, one liquid-cooled heat dissipation element 11 can be connected to the next liquid-cooled heat dissipation element 11, so that the liquid-cooled heat dissipation structure can be continuously expanded, such as Figure 6 shown.

[0036] In summary, the present invention uses a liquid-cooled heat dissipation structure to connect the liquid-cooled heat dissipation module through the conduit unit, so that the working liquid flows from a liquid-cooled heat dissipation element and flows through the conduit unit to another liquid-cooled heat dissipation module. The working liquid flows in the liquid-cooled heat dissipation element, and the heat energy of the optical module is taken away by the working liquid to achieve the purpose of heat dissipation. Therefore, the present case can provide liquid cooling for the optical module of the switch in a small or limited space such as a cabinet (for example, a data center) by using the liquid-cooled heat dissipation structure.

[0037] The above is a detailed description of the present invention, and the above is only a preferred embodiment of the present invention, which should not limit the scope of the present invention. That is, all equivalent changes and modifications made according to the present invention should still fall within the scope of the patent of the present invention.

Claims

1. A liquid cooling heat dissipation structure, characterized in that: Include: A liquid cooling heat dissipation module, wherein the liquid cooling heat dissipation module comprises a plurality of liquid cooling heat dissipation elements, and each of the liquid cooling heat dissipation elements is provided with at least one interface portion; and A conduit unit is connected to the liquid cooling heat dissipation module, wherein the conduit unit includes a conduit and a pair of seals, each end of the conduit is provided with a connecting portion, and the pair of seals are respectively arranged on the connecting portion. The conduit unit utilizes the connecting portion of the conduit and the seal to connect the interface portion to connect and conduct the two liquid cooling heat dissipation elements.

2. The liquid cooling heat dissipation structure according to claim 1, characterized in that: The interface portion on one of the liquid-cooled heat dissipation elements and the interface portion on the other liquid-cooled heat dissipation element are arranged laterally opposite to each other and spaced apart. The conduit includes a transverse tube body and the connecting portions arranged at both ends of the transverse tube body. The two ends of the transverse tube body are inserted into the interface portion through the connecting portions and the sealing member to laterally position the transverse tube body between the two liquid-cooled heat dissipation elements.

3. The liquid cooling heat dissipation structure according to claim 1, characterized in that: The sealing component is coated on the connecting portion. The interface portion has a connecting port. The diameter of the connecting port is greater than or equal to the diameter of the connecting portion and smaller than the outer diameter of the sealing component.

4. The liquid cooling heat dissipation structure according to claim 1, characterized in that: The connecting portion is a convex ring, and the sealing component comprises an annular groove, and the annular groove covers the convex ring so as to fix the sealing component on the convex ring.

5. The liquid cooling heat dissipation structure according to claim 4, characterized in that: The seal includes an outer ring portion, an inner ring portion and a supporting ring portion connecting the outer ring portion and the inner ring portion. The annular groove is surrounded by the supporting ring portion, the outer ring portion and the inner ring portion, and the outer ring portion covers the outer side of the convex ring, the inner ring portion covers the inner side of the convex ring, and the supporting ring portion covers the top side of the convex ring.

6. The liquid cooling heat dissipation structure according to claim 5, characterized in that: 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 connects the outer opening and the inner opening, the connecting portion of the conduit has an opening, the outer opening is larger than the opening, and the inner opening is larger than the outer opening.

7. The liquid cooling heat dissipation structure according to claim 5, characterized in that: The interface portion includes a stop wall, a recessed wall, a limiting wall, and an accommodating space surrounded by the stop wall, the recessed wall and the limiting wall. The inner diameter of the recessed wall is smaller than or equal to the outer diameter of the abutting ring portion.

8. The liquid cooling heat dissipation structure according to claim 7, characterized in that: The thickness of the sealing element is smaller than the axial length of the accommodating space.

9. The liquid cooling heat dissipation structure according to claim 7, characterized in that: The outer ring portion has an assembly chamfer, the inner ring portion has a disengagement chamfer, and the abutting ring portion has an abutting plane, which abuts against the concave wall.

10. The liquid cooling heat dissipation structure according to claim 1, characterized in that: Each of the liquid-cooled heat dissipation elements includes a base and an upper cover arranged on the base, at least one flow channel is arranged in the base, and the flow channel is connected to the conduit through the interface portion, and each of the liquid-cooled heat dissipation elements is provided with a heat exchange area, which is located at the base or the upper cover, and the heat exchange area can be used to set an electronic component.

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