阅读说明：本技术 用于it和数据中心液体冷却的高可靠性冷却模块设计 (The high reliability refrigerating module design cooling for IT and data center liquid ) 是由 高天翼 于 2019-01-09 设计创作，主要内容包括：冷却模块包括模块板,该模块板包括具有顶表面和底表面的底板以及联接到底板的整个周边的一组侧壁。底板具有开口以接收液体冷却元件。液体冷却元件插入开口中；每个均具有入口和出口,并且定位成在液体冷却元件的边缘与开口的边缘之间存在有间隙。入口和出口定位在底板的顶表面上方的、液体冷却元件的一侧上。柔性偏差缓冲器定位在每个间隙中,并且联接到液体冷却元件以及开口。偏差缓冲器在密封间隙以防止液体流过的同时允许液体冷却元件相对于底板的运动。冷却模块可通过快速泄漏识别、泄漏影响最小化以及液体与电子器件的隔离来改善液体冷却可靠性。(Refrigerating module includes module board, which includes one group of side wall on the entire periphery for having the bottom plate of top surface and bottom surface and being connected to bottom plate.Bottom plate has opening to receive liquid cooling element.In liquid cooling element insertion opening；Entrance and exit each is all had, and is positioned between the edge of liquid cooling element and the edge of opening that there are gaps.Entrance and exit is located on above the top surface of bottom plate, liquid cooling element side.Flexible deviation buffer positioning in each gap, and is connected to liquid cooling element and opening.Deviation buffer allows liquid cooling element relative to the movement of bottom plate while seal clearance is to prevent liquid flow from crossing.Refrigerating module can be identified by fast leak, leakage contribution minimizes and liquid and electronic device are isolated to improve the cooling reliability of liquid.)

1. refrigerating module, comprising:

Module board, the module board include bottom plate, and the bottom plate has top surface, bottom surface and one group of side wall, one group of side Wall is connected to the entire periphery of the bottom plate, have in the bottom plate from the top surface extend to one of the bottom surface or Multiple openings；

One or more liquid cooling elements, each of one or more of liquid cooling elements have entrance and exit, And each of one or more of liquid cooling elements are located in one or more of openings in the bottom plate A corresponding opening in, so as between the edge of the liquid cooling element and the edge of the opening there are gap, Wherein, the entrance of each liquid cooling element and the outlet are located in above the top surface of the bottom plate, institute It states on cooling element side；And

Flexible deviation buffer, the flexibility deviation buffer position in each gap and are connected to the cooling member of the liquid Part and the opening, wherein the flexibility deviation buffer is sealing the gap to prevent the excessively described gap of liquid flow Allow movement of the liquid cooling element relative to the bottom plate simultaneously.

2. liquid refrigerating module as described in claim 1, wherein the deviation buffer is O-ring.

3. liquid refrigerating module as described in claim 1, wherein the deviation buffer is H-shaped sealing element.

4. liquid refrigerating module as described in claim 1, further includes:

Leak detection line, around at least part on the periphery that the leak detection line is located in the module board.

5. liquid refrigerating module as claimed in claim 4, further includes:

Recess, the recess are formed in around at least part on the periphery of the module board, wherein the leak detection line is fixed Position is in the recess.

6. liquid refrigerating module as described in claim 1, further includes:

Top plate, the periphery of the top plate are connected to the multiple side wall.

7. liquid refrigerating module as described in claim 1, further includes:

Inlet manifold, the inlet manifold are located on the top surface；And

Outlet manifold, the outlet manifold are located on the top surface,

Wherein, the inlet manifold couples with the entrance fluid of each liquid cooling element, and the outlet manifold with The outlet fluid of each liquid cooling element couples.

8. liquid refrigerating module as described in claim 1, wherein one or more of liquid cooling elements are coldplate.

9. liquid-cooling type server, comprising:

Server, the server include the one or more computing elements of installation on substrate；

Refrigerating module, the refrigerating module are connected to the server, and the refrigerating module includes:

Module board, the module board include bottom plate, and the bottom plate has top surface, bottom surface and one group of side wall, one group of side Wall is connected to the entire periphery of the bottom plate, have in the bottom plate from the top surface extend to one of the bottom surface or Multiple openings；

One or more liquid cooling elements, each of one or more of liquid cooling elements have entrance and exit, And each of one or more of liquid cooling elements are located in one or more of openings in the bottom plate A corresponding opening in, so as between the edge of the liquid cooling element and the edge of the opening there are gap, Wherein, the entrance of each liquid cooling element and the outlet are located on the top surface of the bottom plate, described On the side of liquid cooling element；And

Flexible deviation buffer, the flexibility deviation buffer position in each gap and are connected to the cooling member of the liquid Part and the opening, wherein the flexibility deviation buffer is sealing the gap to prevent the excessively described gap of liquid flow Allow movement of the liquid cooling element relative to the bottom plate simultaneously；And

One group of spring, one group of spring are connected to the substrate and the refrigerating module, wherein one group of spring will be every A liquid cooling element is pulled into be thermally contacted with corresponding computing element.

10. server as claimed in claim 9, wherein the deviation buffer is O-ring.

11. server as claimed in claim 9, wherein the deviation buffer is H-shaped sealing element.

12. server as claimed in claim 9, further includes:

Leak detection line, around at least part on the periphery that the leak detection line is located in the module board.

13. server as claimed in claim 12, further includes:

Recess, the recess are formed in around at least part on the periphery of the module board, wherein the leak detection line is fixed Position is in the recess.

14. server as claimed in claim 9, the refrigerating module further include:

Inlet manifold, the inlet manifold are located on the top surface；And

Outlet manifold, the outlet manifold are located on the top surface,

Wherein, the inlet manifold couples with the entrance fluid of each liquid cooling element, and the outlet manifold with The outlet fluid of each liquid cooling element couples.

15. server as claimed in claim 9, wherein at least one spring in one group of spring is in the cooling mould Apply the power different from the power that other springs in one group of spring are applied on block, so that the bottom plate is relative to described The plane of substrate tilts.

16. data center, comprising:

Facility；

Multiple server racks, the multiple server rack are located in the facility, and each server rack includes:

Rack, accommodates one or more servers in the rack, each server include installation on substrate one or Multiple computing elements；

Refrigerating module, the refrigerating module are connected to each server, and the refrigerating module includes:

Module board, the module board include bottom plate, and the bottom plate has top surface, bottom surface and one group of side wall, one group of side Wall is connected to the entire periphery of the bottom plate, have in the bottom plate from the top surface extend to one of the bottom surface or Multiple openings；

One or more liquid cooling elements, each of one or more of liquid cooling elements have entrance and exit, And each of one or more of liquid cooling elements are located in one or more of openings in the bottom plate A corresponding opening in, so as between the edge of the liquid cooling element and the edge of the opening there is gap, Wherein, the entrance of each liquid cooling element and the outlet are located on the top surface of the bottom plate, described On liquid cooling element side；And

Flexible deviation buffer, the flexibility deviation buffer position in each gap and are connected to the cooling member of the liquid Part and the opening, wherein the flexibility deviation buffer is sealing the gap to prevent the excessively described gap of liquid flow Allow movement of the liquid cooling element relative to the bottom plate simultaneously；

One group of spring, one group of spring are connected to the substrate and the refrigerating module, wherein one group of spring will be every A liquid cooling element is pulled into be thermally contacted with corresponding computing element；

Facility supply line, the facility supply line are connected to each entrance of liquid cooling element；

The facility line of return, the facility line of return are connected to each outlet of liquid cooling element；

Heat exchanger, the heat exchanger are located in the facility exterior and are connected to the facility supply line and the facility The line of return；And

Facility pump, the facility pump are connected in the facility supply line.

17. data center as claimed in claim 16, further includes:

Leak detection line, around at least part on the periphery that the leak detection line is located in the module board.

18. data center as claimed in claim 17, further includes:

Recess, the recess are formed in around at least part on the periphery of the module board, wherein the leak detection line is fixed Position is in the recess.

19. data center as claimed in claim 16, each refrigerating module further include:

Inlet manifold, the inlet manifold are located on the top surface；And

Outlet manifold, the outlet manifold are located on the top surface,

Wherein, the inlet manifold couples with the entrance fluid of the facility supply line and each liquid cooling element, And

Wherein, the outlet manifold couples with the outlet fluid of the facility line of return and each liquid cooling element.

20. data center as claimed in claim 17, wherein at least one spring in one group of spring is in the cooling Apply the power different from the power that other springs in one group of spring are applied in module, so that the bottom plate is relative to institute State the plane inclination of substrate.

Technical field

Disclosed embodiment relates generally to cooling system, specifically but not exclusively to for server sum number According to the liquid refrigerating module at center.

Background technique

It is applied in some practical calculate of such as high density server/rack and high-performance calculation (HPC) server/rack In, liquid cooling may be the heat management solution of economical and efficient, the sometimes solution of unique feasible.For example, HPC makes With the high-performance processor that can generate big calorimetric during operation, such as CPU and GPU processor.Therefore, close for these high powers The heat management for spending processor and server becomes a challenge.

It there's almost no the trial to this heat management challenge is solved.For using the cooling solution party of liquid of coldplate Case, most of existing solutions are the single coldplates with the supply hose and return hose that fit together.It will be single It is easy that a cooling element, which is assembled on processor, but multiple cooling elements are once assembled in cooling circuit, is being located It is extremely difficult and dangerous for managing installation cooling circuit on device.If cooling circuit has multiple cooling elements, may need A possibility that multiple operators are worked together to complete to assemble, and which increase cost and mistakes.

For solving the problems, such as this, there is no mature or effective solution schemes.In terms of preventing leakage, existing solution party Case concentrates on non-conductive working fluid, negative pressure system and leak detection.But all these scheme inefficiency.

Summary of the invention

The one aspect of the application provides refrigerating module, comprising:

Module board, the module board include bottom plate, the bottom plate have top surface, bottom surface and one group of side wall, described one Group side wall is connected to the entire periphery of the bottom plate, has in the bottom plate from the top surface and extends to the one of the bottom surface A or multiple openings；

One or more liquid cooling elements, each of one or more of liquid cooling elements have entrance and go out Mouthful, and each of one or more of liquid cooling elements are located in one or more of openings in the bottom plate In it is corresponding one opening in, so as between the edge of the liquid cooling element and the edge of the opening there are Gap, wherein the entrance of each liquid cooling element and it is described outlet be located in it is above the top surface of the bottom plate, On the cooling element side；And

Flexible deviation buffer, the flexibility deviation buffer positioning is in each gap and to be connected to the liquid cold But element and the opening, wherein the flexibility deviation buffer is between sealing the gap to prevent liquid flow excessively described Allow movement of the liquid cooling element relative to the bottom plate while gap.

The another aspect of the application provides liquid-cooling type server, comprising:

Server, the server include the one or more computing elements of installation on substrate；

Refrigerating module, the refrigerating module are connected to the server, and the refrigerating module includes:

Module board, the module board include bottom plate, the bottom plate have top surface, bottom surface and one group of side wall, described one Group side wall is connected to the entire periphery of the bottom plate, has in the bottom plate from the top surface and extends to the one of the bottom surface A or multiple openings；

One or more liquid cooling elements, each of one or more of liquid cooling elements have entrance and go out Mouthful, and each of one or more of liquid cooling elements are located in one or more of openings in the bottom plate In it is corresponding one opening in, so as between the edge of the liquid cooling element and the edge of the opening there are Gap, wherein the entrance of each liquid cooling element and the outlet are located on the top surface of the bottom plate, institute On the side for stating liquid cooling element；And

Flexible deviation buffer, the flexibility deviation buffer positioning is in each gap and to be connected to the liquid cold But element and the opening, wherein the flexibility deviation buffer is between sealing the gap to prevent liquid flow excessively described Allow movement of the liquid cooling element relative to the bottom plate while gap；And

One group of spring, one group of spring are connected to the substrate and the refrigerating module, wherein one group of spring Each liquid cooling element is pulled into and is thermally contacted with corresponding computing element.

The another aspect of the application provides data center, comprising:

Facility；

Multiple server racks, the multiple server rack are located in the facility, and each server rack includes:

Rack, one or more servers are accommodated in the rack, and each server includes one of installation on substrate A or multiple computing elements；

Refrigerating module, the refrigerating module are connected to each server, and the refrigerating module includes:

Module board, the module board include bottom plate, the bottom plate have top surface, bottom surface and one group of side wall, described one Group side wall is connected to the entire periphery of the bottom plate, has in the bottom plate from the top surface and extends to the one of the bottom surface A or multiple openings；

One or more liquid cooling elements, each of one or more of liquid cooling elements have entrance and go out Mouthful, and each of one or more of liquid cooling elements are located in one or more of openings in the bottom plate In it is corresponding one opening in, so as between the edge of the liquid cooling element and the edge of the opening there is Gap, wherein the entrance of each liquid cooling element and the outlet are located on the top surface of the bottom plate, institute It states on liquid cooling element side；And

Flexible deviation buffer, the flexibility deviation buffer positioning is in each gap and to be connected to the liquid cold But element and the opening, wherein the flexibility deviation buffer is between sealing the gap to prevent liquid flow excessively described Allow movement of the liquid cooling element relative to the bottom plate while gap；

One group of spring, one group of spring are connected to the substrate and the refrigerating module, wherein one group of spring Each liquid cooling element is pulled into and is thermally contacted with corresponding computing element；

Facility supply line, the facility supply line are connected to each entrance of liquid cooling element；

The facility line of return, the facility line of return are connected to each outlet of liquid cooling element；

Heat exchanger, the heat exchanger are located in the facility exterior and are connected to the facility supply line and described The facility line of return；And

Facility pump, the facility pump are connected in the facility supply line.

Detailed description of the invention

Hereinafter non-limiting and exhaustive embodiment is described with reference to the following drawings, wherein unless another It is described, otherwise identical appended drawing reference indicates same parts in each view.

Figure 1A to Figure 1B is the view of the embodiment of server refrigerating module.Figure 1A is plan view, and Figure 1B is substantially The cross-sectional view of taken along section lines B-B in Figure 1A.

Fig. 2A to Fig. 2 B is the view of another embodiment of server refrigerating module.Fig. 2A is plan view, and Fig. 2 B is base The cross-sectional view of taken along section lines B-B in sheet in Fig. 2A.

Fig. 3 A to Fig. 3 B is the cross-sectional view of the embodiment of flexible deviation buffer.

Fig. 4 A to Fig. 4 C be include a server refrigerating module (server refrigerating module as shown in Figure 1A to Figure 1B ) server embodiment cross-sectional view.Fig. 4 A is exploded view, and Fig. 4 B to Fig. 4 C is assembling figure.

Fig. 5 be include server rack data center cooling system embodiment schematic diagram, wherein server machine Frame has as server refrigerating module (the server refrigerating module as shown in Figure 1A to Figure 1B and Fig. 2A to Fig. 2 B) cooling Server.

Specific embodiment

Describe the embodiment of device and system cooling for liquid in the data center.Describe detail with Understanding to embodiment is provided, but those skilled in the relevant art it will be recognized that the present invention can none or it is more Implement in the case where a details or with other methods, component, material etc..In some cases, well-known Structure, material or operation are not specifically shown or described in detail, but still within the scope of the present invention.

Described feature, knot are meaned to " embodiment " or the reference of " embodiment " throughout the specification Structure or characteristic may include in the embodiment described at least one, so that " in one embodiment " or " in embodiment party In formula " appearance be not necessarily all referring to the same embodiment.In addition, in one or more embodiments, special characteristic, knot Structure or feature can combine in any suitable manner.

What disclosed embodiment was focused on cooling down using the direct liquid of the liquid cooling element of such as coldplate asks Topic, wherein cooling element is attached to electronic component and heat is passed to the working fluid recycled by these devices, without Use air.This is different from other types of liquid cooling solution, for example, electronic device is immersed in the intracorporal immersion of stream It is cooling；For many service conditions, such direct liquid cooling is more feasible solution.

In order to design the liquid cooling solution for capableing of large scale deployment, need more for being packaged in server/IT The hardware design of the case where a cooling element.When only one cooling element, assembling is easy.But many nearest In, multiple processors are packaged into close to each other in a server, it means that multiple cooling elements are assembled into Individual server refrigerating module in a server to use.Additional component (such as fluid is needed for cooling element Allocation unit, hose/fluid pipeline, leak detection etc.), it means that it needs for encapsulating these cooling elements and its additional portion The solution of part.In addition, reliability is the cooling significant challenge of liquid.Improve reliability one of most effectual way be every Chaotropic body and electronic device；Disclosed embodiment provides the design done so.

Figure 1A to Figure 1B shows the embodiment of server refrigerating module 100；Figure 1A is plan view, and Figure 1B is along Figure 1A In hatching B-B cross-sectional view.Refrigerating module 100 includes module board 102, have in module board 102 one or more holes or Opening, each opening are sized to accommodate corresponding liquid cooling element 108.Shown in embodiment include eight cooling members Part 108a to 108h, but the quantity of cooling element 108 can be different in other embodiments；In general, cooling element 108 Quantity by and refrigerating module 100 quantity of computing element to be cooled on the server of attachment matched.Flexible deviation is slow Rush the gap that device 110 is located between the edge of each liquid cooling element 108 and the edge of the corresponding opening in module board 102 In: therefore, liquid cooling element 108a has corresponding flexible deviation buffer 110a, and liquid cooling element 108b, which has, to be corresponded to Flexible deviation buffer 110b etc..Leak detection line 120 is located in around the periphery of module board 102.Inlet manifold 112 and go out Mouth manifold 114 is located on module board 102.Handle 122 is attached to bottom plate 104 to allow easily to handle refrigerating module 100.

In the embodiment shown, the entrance of liquid cooling element 108e to 108h is fluidly coupled to inlet manifold 112, And their outlet is connected to the entrance of liquid cooling element 108a to 108d.The outlet of liquid cooling element 108a to 108d Then it is fluidly coupled to outlet manifold 114.As used herein, " fluid connection " means to join in such a way that fluid can exchange It connects；Therefore, if two elements be in fluid connection, fluid can one or two side between them flow up. Inlet manifold 112 is fluidly coupled to master environment supply line 116, and cooling work fluid is supplied to cooling by master environment supply line 116 Module 100, and outlet manifold 114 is fluidly coupled to the master environment line of return 118, the master environment line of return 118 is by the work of heat or temperature Heat exchanger of the fluid back to other places in facility (see, for example, Fig. 5).However, in other embodiments, service Between fluidic component in device refrigerating module 100 and among fluidly connect-include cooling element, hose, connector, manifold, Leakage detection cable and device, pump etc.-can be different from shown in.For example, other embodiment can omit 112 He of inlet manifold Outlet manifold 114, to be conducive to being directly connected to for liquid cooling element 108a to 108h and supply line 116 or the line of return 118.Separately Some embodiments can add additional component, such as pump.

Module board 102 includes the flat bottom plate 104 with top surface 103 and bottom surface 105.In the context of the application In, " top " or " bottom " refers to the specific orientation of refrigerating module 100 shown in figure, and is not intended to and specific take is strictly required To or limitation refrigerating module 100 orientation when in use.One group of side wall 106 is along its entire peripheral attachment to bottom plate 104.Shown Embodiment in, side wall 106 is projected upwards from top surface 103 and basically perpendicular to top surface 103 (that is, relative to top table The angle in 90 ° of face 103) so that bottom plate 104, side wall 106, cooling element 108 and flexible deviation buffer 110 form figure In with the volume 122 shown in cross-hauling.In other embodiments, for example, by placing them in except bottom plate 104 At position other than periphery or them is made not to be 90 ° of angle tilt relative to bottom plate 104, side wall 106 may be disposed to Shown in difference.

Bottom plate 104 includes opening or hole, and the whole thickness of opening or hole from top surface 103 across bottom plate 104 extends to bottom Surface 105, to receive cooling element 108.Opening in bottom plate 104 be sized and shaped to edge in opening with it is corresponding Corresponding cooling element 108 is received between the edge of cooling element while leaving gap.Then, each gap will accommodate and correspond to Flexible deviation buffer 110.Shown in embodiment there are eight cooling element 108a being located in bottom plate 104 extremely 108h, each cooling element has corresponding flexibility deviation buffer 110a to 110h, but other embodiment can have not With the cooling element of quantity.In addition, in the embodiment shown, cooling element 108 is located in bottom plate 104 with regular grid In, but such case is needed not be in other embodiments；In general, the position of cooling element 108 will substantially with will be hot Connection has the location matches on the server of the computing element of cooling element (see, for example, Fig. 4 A to 4C).In an embodiment In, module board 102 can be formed by stamped sheet metal, but in other embodiments, it can be formed from different materials or make It is form differently with different technologies (such as formable plastics).

Liquid cooling element 108 is designed to extract from the server computing element that will be thermally coupled liquid cooling element 108 Heat (see, for example, Fig. 4 A to Fig. 4 C).In one embodiment, cooling element 108 can be coldplate, but in other implementations In mode, they can be another type of liquid cooling element.In addition, in other embodiments, not each cooling member Part 108 requires to be same type: in some embodiments, all cooling element 108a to 108h can be same type , but in other embodiments, cooling element 108a to 108h can be two or more different types.Cooling element 108 are sized and positioned in module board 102 so that they substantially with the bottom meter that will thermally contact cooling element 108 The size and position for calculating element match.Each cooling element 108 includes liquid inlet and liquid outlet, and refrigerating module The entrance and exit of each cooling element 108 in 100 is located in above top surface 103 in volume 122.Refrigerating module isolation Electronic component and cooling element: all cooling elements assemble on the top, and electronic component is located at below refrigerating module.It is this Be isolated in keep entire refrigerating module prevented while being thermally coupled with the electronic component such as processor liquid in a leakage situation with Electronic device contact.Under some cases using thermal interfacial material, cooling element/refrigerating module heat transfer mat substrate will have Have and is contacted with the direct of processor.

Each flexibility deviation buffer 110 fill and its corresponding cooling element 108 of opening in seal base 104 it Between gap；Substantially, each flexible deviation buffer 110 provides the connection between cooling element and module board.Along its correspondence The flexible deviation buffer 110: liquid cooling element 108a of each of the periphery positioning of cooling element 108 have flexible deviation slow Device 110a is rushed, liquid cooling element 108b has flexible deviation buffer 110b etc..In the embodiment shown, institute is flexible Deviation buffer 110a to 110h is identical, but in other embodiments, not each liquid cooling element 108 needs To use the flexible deviation buffer 110 of same type.Because they are flexible, deviation buffer 110 allows them Movement of the corresponding liquid cooling element 108 relative to bottom plate 104.In other words, the flexible buffer 110 that deviates allows cooling element 108 translate in the x, y and z directions relative to bottom plate 104, and allow cooling element 108 relative to bottom plate 104 around all three Axis rotation.Flexible deviation buffer 110 is also waterproof, so that each opening in their seal bases 104 is corresponding Liquid cooling element 108 edge between gap.Pass through the edge of the corresponding opening of sealing liquid cooling element 108 Between gap, flexible deviation buffer 110 prevents the liquid of leakage from flowing through server and its electronic component, but trapping volume Leakage liquid in 122.In various embodiments, flexible deviation buffer 110 can be by different materials (such as rubber or silicon) It is made, and various forms can be taken (see, for example, Fig. 3 A to Fig. 3 B).

Each flexibility deviation buffer 110 has multiple functions.Firstly, each cooling element 108 will need to be attached to list Only computing element, but the relative position of cooling element may not exclusively match with the relative position of processor, therefore, partially Poor buffer provides bigger position of related features.Secondly, each flexibility deviation buffer uses waterproof material compared with being directly connected to Material preferably prevents fluid from leaking to provide.Third, flexible deviation buffer allow individual cooling element 108 to hold in the module It is easily removed and/or replaces.4th, flexible deviation buffer provides vertical position tolerance and installation pressure for cooling element.Most Afterwards, buffer makes refrigerating module plate be designed to inclination to guide leak fluid.

Leak detection line 120 is located in around the periphery of module board 102, so that it is able to detect that because of the cooling member of liquid Fluid leakage in any of the fluidly connecting of part 108, their own entrance or outlet and liquid cooling element and lead Any fluid accumulation cause, in volume 122.

In this design, once leaking, then fluid will only flow in refrigerating module.Refrigerating module is by completely close Envelope, and will not be in contact between liquid and electronic device.In addition, refrigerating module is used as liquid tank, to occur in leakage After accommodate a certain amount of fluid.In addition, leak detection module/cable/function can be added to as mentioned in previous section Refrigerating module, so that leakage can stop before volume 122 is completely filled.In addition, refrigerating module is designed as server Liquid is cooling to provide hardware solution, especially the case where the multiple processors cooled down by liquid encapsulate in the server Under.Different server arrangements may need to design slight changes to refrigerating module, and such as: different servers or GPU box can The layout of processor on processor or mainboard with different number can be different；Due to different chassis formal causes Element, the Machine Design of refrigerating module can be different；Different server liquid distribution manifolds can be applicable on plate or liquid Pipeline, inlet/outlet connector may need the different designs of refrigerating module；Different cooling elements or cooling unit design It may need to cooling surface plate slight changes；Different designs can be used for install refrigerating module or being locked on chassis；With And server entrance and exit quickly disconnects part and can be assembled in module, this may need some Machine Designs.

Fig. 2A to Fig. 2 B shows another embodiment of liquid refrigerating module 200.Liquid refrigerating module 200 is most of Aspect and liquid refrigerating module 100 are similar: it includes bottom plate 104, side wall 106, cooling element 108, flexible deviation buffer 110, manifold 112 and 114, leak detection line 120 etc..The main distinction between liquid refrigerating module 200 and 100 is that liquid is cold But module 200 includes the recess 204 being formed in around the periphery of bottom plate 104.Then, leak detection line 120 is located in recess 204 In.Recess 204 provides low spot in module board 102, so that any liquid accumulated in volume 122 by leakage can be in weight Recess 204 is rapidly introduced under the influence of power, this can more easily be detected by leak detection line 120.Present embodiment permits Perhaps quickly identification leakage, and the length of leakage detection cable and quantity can allow for substantially reduce.

Fig. 3 A to Fig. 3 B shows the corresponding liquid cooling element of each opening that can be used in seal base 104 The embodiment of the flexible deviation buffer in the gap between 108.The flexible deviation buffer 300 that Fig. 3 A shows as O-ring. In the embodiment shown, O-ring 300 has oval cross section, but in other embodiments, ring 300 can have Other cross sections, such as round or polygonal crosssection.In addition, the shape of O-ring 300 during installation can from be different when not installing : for example, if the O-ring with circular cross section is between the edge and corresponding liquid cooling element 108 of insertion opening Gap in when compressed, then its variable cross-section ovalisation.In one embodiment, O-ring 300 is cold around liquid But the single-piece O-ring that the periphery of element 108 is wound always, but in other embodiments, it can be multi-piece type O-ring.

Fig. 3 B shows another embodiment of flexible deviation buffer 350.Flexible deviation buffer 350 includes central part 352.Two extensions 354 spaced apart extend in one direction from the side of central part 352, and two extensions spaced apart Portion 356 extends in the opposite direction from the opposite side of central part 352.When the direction shown in is rotated by 90 °, flexible deviation is slow It rushes device 350 and looks like alphabetical H, and this depends on the relative thickness of bottom plate 104 and cooling element 108.The embodiment party shown in In formula, cooling element 108 is substantially thicker than bottom plate 104, so that flexible deviation buffer 350 looks like such H, the H Side it is wider than the other side.However, in other embodiments, cooling element 108 can have the thickness closer to bottom plate 104 Thickness so that buffer 350 looks like the H of regular ratios.

Fig. 4 A to Fig. 4 C shows the embodiment of the component 400 including server 401 and liquid refrigerating module.It is shown Embodiment the use of refrigerating module 100 is embodiment, but in other embodiments, liquid refrigerating module 200 can be used To replace refrigerating module 100.Fig. 4 A to Fig. 4 B shows point for the component 400 that refrigerating module 100 is installed on server 401 Diagrammatic view and assembled view.In component 400, server 401 includes substrate 402, and multiple Computing Metas are equipped on substrate 402 Part 404；Shown in embodiment tool there are four computing element 404a to 404d, but other embodiment may include than it is shown more More or less computing element.Computing element 404 may include microprocessor, graphics processor, memory and other this components. Quantity of the quantity of liquid cooling element 108 in refrigerating module 100 substantially with computing element 404 matches.In order to start Assembling, liquid refrigerating module 100 drops on server so that each of liquid cooling element 108a to 108h with it is corresponding Computing element 404 thermally contact: cooling element 108a is thermally contacted with computing element 404a, cooling element 108b and computing element 404b thermo-contact etc..The substrate of cooling element 108 should be completely attached to computing element 404, so that cooling element can be normally It works；In the case where no suitably contact, cooling element may fail or possibly can not work by design.In order to Thermally contacting between enhancing computing element 404 and liquid cooling element 108 can be inserted into or be assigned thermal interfacial material between them (TIM) (not shown).

Fig. 4 B shows the component 400 after refrigerating module 100 is in place.When refrigerating module 100 has been positioned so that institute When having liquid cooling element 108 to be thermally coupled to their corresponding computing elements 404, one group of spring 406 could attach to 402 He of substrate Refrigerating module 100, is remained to the appropriate location on server by module board 102.In the embodiment shown, this group of spring Including two spring 406a to 406b, but other embodiment may include the spring with shown different number.Spring 406a is extremely 406b helps refrigerating module to the initial assembling of server by providing compliant physical bearing；Make when in single refrigerating module When with multiple cooling units, it is difficult to which all refrigerating modules are accurately assembled on corresponding processor.

Fig. 4 C shows the embodiment party that spring 406a and 406b applies different power in the different piece of refrigerating module 100 Formula.As applying uneven power to refrigerating module 100 as a result, refrigerating module 100 finally is positioned to be not parallel to bottom plate 104 Substrate 402, but it is angled relative to substrate 402.This can by using different types of spring 406a and 406b or spring with different spring constant k are realized.It is angled by positioning bottom plate 104 relative to substrate 402, Gravity quickly and automatically by the fluid of any leakage from cooling element 108 from their own entrance or outlet, from it Between fluidly connect, from inlet manifold and outlet manifold (see, for example, Figure 1A to Figure 1B and Fig. 2A to Fig. 2 B) or from Some other sources are directed to the downside that the refrigerating module 100 of leak detection line 120 is located.As a result it is by leak detection line The detection that 120 pairs of fluids carry out is faster than other situations.As discussed hereinabove, flexible deviation buffer 110 allows cooling member Linear and rotary motion of the part 108 relative to bottom plate 104.Although the result of this flexibility is bottom plate 104 relative to substrate 102 is angled, but the corresponding computing element 404 of each cooling element 108 keeps complete and firm heat to connect Touching.

Fig. 5 shows the embodiment of data center cooling system 500.In cooling system 500, multiple server racks 501 are located in inside facility 502.Facility 502 can be the subset of complete building, building (for example, the room in building Or compartment) or some other types of shells.Heat exchanger 504 is located in outside facility 502.In the embodiment shown, Heat exchanger 504 is liquid to air heat exchanger, by the heat from the working fluid recycled by server rack 501 It is transmitted in atmosphere.But in other embodiments, heat exchanger 504 can be different types of heat exchanger, for example, liquid To liquid heat exchanger.Heat exchanger 504 be embodiment of the liquid to liquid heat exchanger in, such as seawater or lake water Natural water resources can be used by heat exchanger.It is in embodiment of the liquid to air heat exchanger in heat exchanger 504, heat is handed over Parallel operation 504 can be dry cooler, cooling tower or devaporizer.

The entrance of facility pump 506 is connected to the liquid outlet of heat exchanger 504, and its outlet is connected to facility supply line 508.Then, the main supply line 509 for each server rack 501 is connected to facility supply line 508.The facility line of return 510 It is connected to the main line of return 511 of each server rack 501, and is also connected to the liquid inlet of heat exchanger 504.Different Data center's infrastructure may need to be modified slightly facility fluid pipeline, nevertheless, cooling system 500 is single loop Cooling system.

In various embodiments, facility pump 506 can be encapsulated in heat exchanger 504 or be designed as external component.At this It is shown in dotted line to indicate that they show the position that can be placed facility and pump for the facility pump 503,505 and 507 of selectivity in figure It sets, instead of pump 506 or other than pump 506.For example, in some embodiments, facility pump 505 can be positioned on facility supply In line 508 and/or facility pump 507 can be positioned in the facility line of return 510.In other embodiments, facility pump 503 can position In heat exchanger 504.Other embodiments can have multiple facilities to pump, for redundancy or high flow rate or high pressure requirement.Volume Outer transfer pump 512 and return pump 514 can be positioned in each rack 501.Substantially, facility pump is the stream flowed in systems Body provides main drive, and rack gear pump can be provided additional driving force based on rack gear heat load and control flow rate amount.Energy Enough develop the different control strategies for facility pump and manifold pump.

In operation, cooling work fluid is pumped into facility supply line 508 by facility pump 506 from heat exchanger 504, so Cooling work fluid is supplied to the main supply line 509 of each server rack 501 by facility supply line 508 afterwards.If there is Words, cooling work fluid is pumped into sub-loop supply line by rack transfer pump 512, and then sub-loop supply line is by cooling work For fluid conveying to refrigerating module 516, refrigerating module 516 can be refrigerating module 100 or 200 in various embodiments.With Working fluid is recycled by refrigerating module 516, is absorbed heat and is become hotter, so that hot working fluid is returned by son The road line of return is gone forward side by side in inlet/outlet manifold.If it exists, rack, which returns to pump 514, is sent to facility return for hot working fluid pump In line 510, hot working fluid is returned to heat exchanger 504 by the facility line of return 510.It is handed over as thermal technology makees fluid circulation by heat Parallel operation 504 is recycled, such as the cold air from atmosphere recycle by heat exchanger 504 and be gone from hot working fluid Except heat, so that it can be recycled by facility pump 506 by server rack 501 again.

Disclosed embodiment provides the high reliability liquid refrigerating module for IT and data center.In the present invention The concept of introducing provides the hardware solution and device cooling for liquid, is especially set in multiple processors or component In the case where being calculated as liquid cooling.In addition, electronic device and liquid has been isolated in disclosed embodiment.This is significantly reduced The influence of liquid leakage and the reliability for improving whole system.Some advantages of disclosed embodiment are:

High reliability:

The design of ο refrigerating module provides being isolated for liquid and electronic device, also provides refrigerating module and electronic device Isolation, to only provide necessary heat transfer contact therebetween.

ο refrigerating module provides the device for accommodating and guiding leakage liquid, to prevent liquid from anywhere flowing It is dynamic.

The ο design enables to leak detection to be effectively embedded in module.

Modularized design:

This conception of species of ο uses modularized design, makes it easier to assemble.

ο is easy to maintain.

ο is quickly assembled；Eliminate the difficulty for assembling multiple cooling elements and cooling circuit in the server.

ο rapid deployment.

ο failure rate of machinery is low.

ο is directed to the flexible solution of different types of IT layout.

It is multi-functional:

ο manifold can be mounted in module.

ο leak detection can be mounted in module.

ο it is contemplated that module fluid guide design (that is, fluidly connecting), without changing any server requirement.

ο additional pump can be mounted in module.