Cold plate assembly

Abstract

The invention provides a cold plate assembly which comprises a bottom plate and a cover plate which are stacked, a middle cooling groove and at least two first cooling areas and second cooling areas surrounding the middle cooling groove in the circumferential direction are formed in the bottom plate, all the first cooling areas communicate with the middle cooling groove, and all the second cooling areas do not communicate with the middle cooling groove; cooling liquid entering from an inlet of the cover plate is divided into the middle cooling groove and the second cooling areas, and the cooling liquid entering the middle cooling groove is divided into the first cooling areas and then flows out from an outlet of the cover plate together with the cooling liquid entering the second cooling areas. According to the invention, because each second cooling area is closer to the edge of the bottom plate, the stroke of the cooling liquid entering the second cooling area to the edge of the bottom plate is shorter, and the shorter stroke can effectively reduce the flow resistance and reduce the cooling temperature of the cooling liquid reaching the edge, so that the heat exchange capability of the edge area can be improved; and the heat exchange uniformity of the whole bottom plate is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of liquid cooling, and in particular relates to a cold plate assembly. Background Art

[0002] Cold plates are highly efficient heat dissipation devices widely used in electronic devices such as servers and high-performance computing systems. They absorb and transfer heat through flowing coolant, thereby achieving cooling. A major issue with traditional cold plate designs is the uneven heat exchange efficiency at the edges of the cold plate (particularly the corners). Specifically, since the edges are farther from the inlet, the coolant heats up after a long heat exchange process, resulting in lower heat exchange efficiency in these areas. Summary of the Invention

[0003] Therefore, the present invention provides a cold plate assembly that can solve the technical problem that the edge areas of the cold plate are farther away from the inlet, and the coolant temperature rises after long-distance heat exchange and reaches here, resulting in low heat exchange efficiency in these areas.

[0004] In order to solve the above problems, the present invention provides a cold plate assembly, including a stacked base plate and a cover plate, wherein a central cooling groove, at least two first cooling areas and at least two second cooling areas are formed on the base plate, each of the first cooling areas and each of the second cooling areas surrounds the periphery of the central cooling groove, each of the first cooling areas is connected to the central cooling groove, and each of the second cooling areas is not connected to the central cooling groove; an inlet and an outlet are formed on the cover plate, and the coolant entering from the inlet can be diverted into the central cooling groove and each of the second cooling areas, the coolant entering the central cooling groove is diverted into each of the first cooling areas and then flows out from the outlet, and the coolant entering each of the second cooling areas also flows out from the outlet.

[0005] In some embodiments, a diverter plate is further assembled between the base plate and the cover plate, and the diverter plate is constructed with a central flow hole and at least two guide grooves, the central flow hole passes through the diverter plate, and the inlet is connected to the central cooling groove through the central flow hole, and each of the guide grooves is distributed at circumferential intervals along the central flow hole, and one end of each of the guide grooves is respectively connected to the central flow hole, and the other end of each of the guide grooves passes through the diverter plate and is respectively connected to each of the second cooling areas.

[0006] In some embodiments, at least two collecting channels are formed on the base plate, each of the collecting channels is close to the edge of the base plate, and along the circumference of the central cooling groove, the adjacent first cooling areas and the second cooling areas form a combined area, the number of the outlets is at least two, and each of the combined areas is connected to each of the outlets through each of the collecting channels.

[0007] In some embodiments, at least two flow channels are constructed on the diverter plate, each of the flow channels passes through the diverter plate, and each of the flow channels is close to the edge of the diverter plate, and each of the collecting channels is connected to each of the outlets through each of the flow channels.

[0008] In some embodiments, the inlet is located at the center of the cover plate, the outlets are spaced apart along the circumference of the cover plate, and each outlet is close to an edge of the cover plate.

[0009] In some embodiments, the first cooling regions and the second cooling regions are alternately distributed along the circumference of the central cooling groove.

[0010] In some embodiments, a plurality of first separators are formed in the first cooling region and are spaced apart from each other. Each of the first separators extends from the central cooling groove to the periphery of the bottom plate, and a first cooling channel is formed between two adjacent first separators.

[0011] In some embodiments, a plurality of fluid turbulent bodies are disposed in the first cooling channel, and the fluid turbulent bodies are sequentially spaced apart along an extension direction of the first cooling channel.

[0012] In some embodiments, the height of each of the flow-disturbing bodies gradually decreases in a direction from the middle cooling groove to the periphery of the bottom plate.

[0013] In some embodiments, each of the flow-disturbing bodies has a tip facing away from the cooling groove.

[0014] In some embodiments, a thickness of a partial section of the first separator corresponding to the body-disturbing member is smaller than a thickness of other partial sections of the first separator.

[0015] In some embodiments, a plurality of second separators distributed at intervals are formed in each of the second cooling regions, and a second cooling channel is formed between two adjacent second separators.

[0016] In some embodiments, a plurality of first spoiler columns located in the central cooling groove are further formed on the bottom plate, and the first spoiler columns are distributed at intervals in the central cooling groove.

[0017] In some embodiments, a plurality of second spoiler columns are formed on the base plate and are located in the central cooling groove, and the second spoiler columns are spaced apart in the central cooling groove, and the second spoiler columns surround the periphery of the first spoiler columns; the cross-sectional area of ​​the second spoiler columns is smaller than the cross-sectional area of ​​the first spoiler columns; and / or the spacing formed between two adjacent second spoiler columns is greater than the spacing formed between two adjacent first spoiler columns.

[0018] The cold plate assembly provided by the present invention has the following beneficial effects:

[0019] The bottom of the baseplate of the present application is in direct contact with the heat source. The coolant entering from the inlet can be diverted into the central cooling groove and each secondary cooling zone. The coolant entering the central cooling groove is diverted into each first cooling zone and flows out from the outlet, thereby removing some of the heat from the heat source. Since the coolant entering the second cooling zone is low-temperature coolant that has not yet undergone heat exchange with the heat source, and the secondary cooling zones surround the periphery of the central cooling groove, each second cooling zone is closer to the edge of the baseplate. Therefore, the low-temperature coolant entering the second cooling zone has a shorter distance to reach the edge of the baseplate. The shorter distance can effectively reduce flow resistance and reduce the temperature drop of the coolant reaching the edge, thereby improving the heat exchange capacity of the edge area and ensuring heat exchange uniformity across the entire baseplate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0021] Figure 1 An exploded schematic diagram of a cold plate assembly according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic structural diagram of a cold plate assembly according to an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of a bottom plate of a cold plate assembly according to an embodiment of the present invention;

[0024] Figure 4 for Figure 3 An enlarged schematic diagram of point A of the bottom plate of the cold plate assembly according to an embodiment of the present invention;

[0025] Figure 5 is a partial schematic diagram of a bottom plate of a cold plate assembly according to an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of a manifold of a cold plate assembly according to an embodiment of the present invention;

[0027] Figure 7 for Figure 6 An enlarged schematic diagram of position B of the manifold of the cold plate assembly according to an embodiment of the present invention;

[0028] Figure 8 A top view of a cold plate assembly according to an embodiment of the present invention;

[0029] Figure 9 for Figure 8 A CC sectional view of a cold plate assembly according to an embodiment of the present invention;

[0030] Figure 10 for Figure 9 An enlarged schematic diagram of point D of the cold plate assembly according to an embodiment of the present invention;

[0031] Figure 11 A comparative schematic diagram of different first separators and different fluid turbulence bodies arranged in the first cooling region of the bottom plate of the cold plate assembly according to an embodiment of the present invention;

[0032] Figure 12 This is a schematic diagram comparing comprehensive evaluation coefficients obtained after different first separators and different fluid disruptors are arranged in the first cooling region of the bottom plate of the cold plate assembly according to an embodiment of the present invention.

[0033] The reference numerals indicate:

[0034] 1. Bottom plate; 2. Cover plate; 3. Central cooling groove; 4. First cooling area; 5. Second cooling area; 6. Inlet; 7. Outlet; 8. Diverter plate; 9. Central flow hole; 10. Guide groove; 11. First separator; 12. Disturbing body; 13. Second separator; 14. Collecting channel; 15. Flow channel; 16. First spoiler column; 17. Second spoiler column. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0037] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0038] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0039] See also Figures 1 to 12 As shown, according to an embodiment of the present invention, a cold plate assembly is provided, comprising a stacked base plate 1 and a cover plate 2, wherein a central cooling groove 3, at least two first cooling areas 4 and at least two second cooling areas 5 are formed on the base plate 1, each first cooling area 4 and each second cooling area 5 surrounds the periphery of the central cooling groove 3, each first cooling area 4 is connected to the central cooling groove 3, and each second cooling area 5 is not connected to the central cooling groove 3; an inlet 6 and an outlet 7 are formed on the cover plate 2, and the coolant entering through the inlet 6 can be diverted into the central cooling groove 3 and each second cooling area 5, the coolant entering the central cooling groove 3 is diverted into each first cooling area 4 and then flows out from the outlet 7, and the coolant entering each second cooling area 5 also flows out from the outlet 7.

[0040] In this technical solution, the bottom of the base plate 1 is in direct contact with the heat source. The coolant entering through the inlet 6 can be diverted into the central cooling groove 3 and each second cooling area 5. The coolant entering the central cooling groove 3 is diverted into each first cooling area 4 and flows out through the outlet 7. This portion of coolant removes some of the heat from the heat source. Since the coolant entering the second cooling area 5 is low-temperature coolant that has not yet exchanged heat with the heat source, and each second cooling area 5 surrounds the periphery of the central cooling groove 3, each second cooling area 5 is closer to the edge of the base plate 1. Therefore, the low-temperature coolant entering the second cooling area 5 has a shorter distance to reach the edge of the base plate 1. The shorter distance can effectively reduce flow resistance and reduce the cooling of the coolant reaching the edge, thereby improving the heat exchange capacity of the edge area and ensuring heat exchange uniformity across the entire base plate 1. Furthermore, the first cooling areas 4 and the second cooling areas 5 are alternately distributed along the circumference of the central cooling groove 3, which is beneficial to heat exchange uniformity across the entire base plate 1.

[0041] See also Figure 1 、 Figure 6 、 Figure 8 and Figure 10 As shown, a diverter plate 8 is also assembled between the base plate 1 and the cover plate 2. The diverter plate 8 is constructed with a central flow hole 9 and at least two guide grooves 10. The central flow hole 9 passes through the diverter plate 8, and the inlet 6 is connected to the central cooling groove 3 through the central flow hole 9. The guide grooves 10 are distributed at intervals along the circumference of the central flow hole 9, and one end of each guide groove 10 is respectively connected to the central flow hole 9, and the other end of each guide groove 10 passes through the diverter plate 8 and is respectively connected to each second cooling area 5.

[0042] In this embodiment, since the inlet 6 is connected to the central cooling groove 3 through the central flow hole 9, one end of each guide groove 10 is connected to the central flow hole 9, and the other end of each guide groove 10 passes through the diverter plate 8 and is connected to each second cooling zone 5, a portion of the coolant entering from the inlet 6 will reach the central cooling groove 3, and another portion will enter the second cooling zone 5 through the guide grooves 10 on the diverter plate 8. In other words, the provision of the diverter plate 8 ensures that a portion of the coolant entering from the inlet 6 is directly diverted to each second cooling zone 5. The base plate 1, cover plate 2, and diverter plate 8 may be square or circular plates.

[0043] See also Figure 3 and Figure 4 As shown, a plurality of first separators 11 are formed in the first cooling area 4 and are distributed at intervals. Each first separator 11 extends from the central cooling groove 3 to the periphery of the base plate 1 , and a first cooling channel is formed between two adjacent first separators 11 .

[0044] In this technical solution, the first cooling area 4 is divided into multiple first cooling channels by utilizing multiple first separators 11, and the coolant entering the first cooling area 4 will flow along each first cooling channel. The coolant flows in more channels, making the first cooling area 4 cool the heat source more evenly.

[0045] See also Figure 3 and Figure 4 As shown, a plurality of fluid turbulent bodies 12 are provided in the first cooling channel, and the fluid turbulent bodies 12 are sequentially spaced apart along the extending direction of the first cooling channel.

[0046] In this embodiment, by sequentially and spaced apart in the extension direction of the entire first cooling channel, the heat exchange area can be increased, the heat exchange efficiency can be improved, and the coolant flowing through the first cooling area 4 can better cool the heat source.

[0047] See also Figure 1 and Figure 5 As shown, the height of each fluid turbulence 12 gradually decreases from the central cooling groove 3 to the periphery of the base plate 1. This is equivalent to the height of each fluid turbulence 12 gradually decreasing in the direction of coolant flow. Gradually decreasing the height of each fluid turbulence 12 can reduce flow resistance but also reduce the heat exchange area. However, through simulation, it was found that gradually decreasing the height of each fluid turbulence 12 can obtain the best comprehensive evaluation coefficient, which can effectively improve the comprehensive heat exchange performance of the cold plate. This shows that the advantage of reducing flow resistance brought about by gradually decreasing the height of each fluid turbulence 12 outweighs the disadvantage of reducing the heat exchange area.

[0048] Specifically, Figure 11 The figure shows a comparison of different first separators 11 and different fluid turbulence bodies 12 provided in the first cooling area 4 of the bottom plate of the cold plate assembly according to an embodiment of the present invention. Case 1 is a case where only a straight first separator 11 is provided in the first cooling area 4; Case 2 is a case where only a straight first separator 11 is provided in the first cooling area 4. Figure 5 The case of the first separator 11 with a varying wall thickness is shown; case 3 is a case in which the first cooling zone 4 is provided with a Figure 5 The case shown is a case where the wall thickness of the first separator 11 changes and the height of the plurality of turbulent bodies 12 are consistent; case 4 is a case where the first cooling area 4 is provided with Figure 5 The case shown is a case where the wall thickness of the first separator 11 changes and the height of the plurality of turbulent bodies 12 gradually increases; case 5 is a case where the first cooling area 4 is provided with Figure 5 The case shown is a case where the first separator 11 with a varying wall thickness and a plurality of fluid turbulence bodies 12 with gradually increasing heights and a height of a middle fluid turbulence body 12 is the same as the height of the highest fluid turbulence body 12; case 6 is a case where the first cooling area 4 is provided with a plurality of fluid turbulence bodies 12 with gradually increasing heights; Figure 5The six cases are shown as follows: the first separator 11 with a varying wall thickness and multiple disruptive bodies 12 with gradually decreasing heights and the height of a middle disruptive body 12 being the same as the height of the highest disruptive body 12. Figure 12 The comparison chart shown is from Figure 12 It can be seen that the comprehensive evaluation coefficient η obtained in case 6 is the highest, η=(j / j n ) / (f / f n ) 1 / 3 , where j is the heat transfer factor and f is the Fanning friction factor. The reason why the height of a certain middle disrupting fluid 12 is consistent with the height of the highest disrupting fluid 12 in case 6 is that it is only because there is a hot spot with a higher temperature corresponding to the heat source. In order to better cool this place, the height of the disrupting fluid 12 is designed to be the same as the height of the highest disrupting fluid 12. However, it does not violate the rule that the optimal comprehensive evaluation coefficient will be obtained when the height of each disrupting fluid 12 gradually decreases in the flow direction of the coolant. Preferably, in the direction from the middle cooling groove 3 to the periphery of the bottom plate 1, the height of the first disrupting fluid 12 is the same as the height of the first separator 11, and the height of the last disrupting fluid 12 is the height of the first disrupting fluid 12 divided by the total number of disrupting fluids 12 in the same first cooling channel. The height reduction of the latter disrupting fluid 12 relative to the previous disrupting fluid 12 in the same first cooling channel is consistent.

[0049] See also Figures 3 to 5 As shown, each of the turbulent bodies 12 has a tip facing away from the central cooling groove 3. The tip of the turbulent body 12 is aligned with the flow direction of the coolant flowing through the first cooling channel. This reduces the generation of Karman vortex streets when the coolant flows through the turbulent bodies 12, thereby reducing the flow resistance of the coolant flowing through the turbulent bodies 12. The turbulent bodies 12 may be fins.

[0050] See also Figures 3 to 5 As shown, the thickness of the partial section of the first separator 11 corresponding to the disrupting body 12 is smaller than the thickness of the other partial sections of the first separator 11 .

[0051] In this technical solution, the portion of the first cooling channel corresponding to the fluid turbulence 12 presents a narrowing effect, which increases flow resistance and affects heat exchange efficiency. By making the thickness of the portion of the first separator 11 corresponding to the fluid turbulence 12 thinner than the thickness of the other portions of the first separator 11, the width of the first cooling channel corresponding to the fluid turbulence 12 is widened, thereby offsetting the flow narrowing caused by the fluid turbulence 12, improving the increased flow resistance, and ensuring heat exchange efficiency.

[0052] See also Figure 3 and Figure 4As shown, a plurality of second separators 13 distributed at intervals are formed in each second cooling region 5 , and a second cooling channel is formed between two adjacent second separators 13 .

[0053] In this embodiment, the second cooling area 5 is divided into multiple second cooling channels by utilizing multiple second separators 13, and the coolant entering the second cooling area 5 will flow along each second cooling channel. The coolant flows in more channels, making the second cooling area 5 cool the heat source more evenly.

[0054] See also Figure 1 and Figure 2 As shown, the inlet 6 is located in the center of the cover plate 2, and there are at least two outlets 7. The outlets 7 are spaced apart along the circumference of the cover plate 2 and are close to the edge of the cover plate 2. This allows the coolant in each first cooling zone 4 and each second cooling zone 5 to be discharged promptly from the nearest outlet 7. It should be noted that when the base plate 1, cover plate 2, and diverter plate 8 are square plates, the outlets 7 are located at the four corners of the cover plate 2; when the base plate 1, cover plate 2, and diverter plate 8 are circular plates, the outlets 7 are evenly distributed along the circumference of the cover plate 2.

[0055] See also Figure 1 and Figure 3 As shown, at least two collecting channels 14 are formed on the base plate 1, and each collecting channel 14 is close to the edge of the base plate 1. Along the circumference of the central cooling groove 3, the adjacent first cooling area 4 and the second cooling area 5 form a combined area, and each combined area is connected to each outlet 7 through each collecting channel 14.

[0056] In this technical solution, by forming a collecting channel 14 on the base plate 1, it is convenient to collect the coolant in the adjacent first cooling area 4 and second cooling area 5 and discharge it through the nearest outlet 7, thereby improving the circulation efficiency of the coolant. When the base plate 1, the cover plate 2 and the diverter plate 8 are square plates, each second cooling area 5 is located at the four corners of the base plate 1, and the collecting channel 14 is a straight channel close to the edge of the base plate 1. Each second cooling channel formed in the second cooling area 5 is perpendicular to the collecting channel 14, thereby ensuring that the coolant in each second cooling channel can be collected in the collecting channel 14. Each first cooling channel formed in the first cooling area 4 is also perpendicular to the collecting channel 14, thereby ensuring that the coolant in each second cooling channel can also be collected in the collecting channel 14.

[0057] See also Figure 1 and Figure 6 As shown, at least two flow channels 15 are constructed on the diverter plate 8, each flow channel 15 passes through the diverter plate 8, and each flow channel 15 is close to the edge of the diverter plate 8, and each collecting channel 14 is connected to each outlet 7 through each flow channel 15.

[0058] In this embodiment, by configuring the flow channel 15 on the manifold plate 8 , the coolant collected in the collecting channel 14 on the bottom plate 1 can be smoothly discharged through the outlet 7 of the cover plate 2 .

[0059] See also Figure 3 and Figure 4 As shown, a plurality of first spoiler columns 16 are formed on the bottom plate and are located in the central cooling groove 3 , and the first spoiler columns 16 are distributed at intervals in the central cooling groove 3 .

[0060] In this technical solution, each first spoiler column 16 can form a turbulent flow for the coolant entering the central cooling groove 3 and increase the heat exchange area, thereby facilitating the heat dissipation of the central hot spot.

[0061] See also Figure 3 and Figure 4 As shown, a plurality of second spoiler columns 17 are further formed on the bottom plate and are located in the central cooling groove 3. The second spoiler columns 17 are spaced apart in the central cooling groove 3, and the second spoiler columns 17 surround the periphery of the first spoiler columns 16; the cross-sectional area of ​​the second spoiler columns 17 is smaller than the cross-sectional area of ​​the first spoiler columns 16; and / or the spacing formed between two adjacent second spoiler columns 17 is greater than the spacing formed between two adjacent first spoiler columns 16.

[0062] In this embodiment, the second spoiler columns 17 are also provided to turbulently affect the coolant entering the central cooling groove 3 and increase the heat exchange area. Furthermore, the smaller cross-sectional area of ​​each second spoiler column 17 and the larger spacing between them can also prevent excessive flow resistance. The second spoiler columns 17 can be cylindrical, block-shaped, or the like.

[0063] It is easy for those skilled in the art to understand that, under the premise of no conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0064] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art may make various improvements and variations without departing from the technical principles of the present invention, and such improvements and variations shall also be considered within the scope of protection of the present invention.

Claims

1. A cold plate assembly, characterized in that: The invention comprises a stacked base plate (1) and a cover plate (2), wherein the base plate (1) is formed with a central cooling groove (3), at least two first cooling areas (4) and at least two second cooling areas (5), each of the first cooling areas (4) and each of the second cooling areas (5) surrounds the periphery of the central cooling groove (3), each of the first cooling areas (4) is connected to the central cooling groove (3), and each of the second cooling areas (5) is not connected to the central cooling groove (3); an inlet (6) and an outlet (7) are formed on the cover plate (2), and the cooling liquid entering through the inlet (6) can be diverted into the central cooling groove (3) and each of the second cooling areas (5), and the cooling liquid entering the central cooling groove (3) is diverted into each of the first cooling areas (4) and then flows out from the outlet (7), and the cooling liquid entering each of the second cooling areas (5) also flows out from the outlet (7).

2. The cold plate assembly according to claim 1, wherein: A diverter plate (8) is also assembled between the base plate (1) and the cover plate (2), and a central flow hole (9) and at least two guide grooves (10) are constructed on the diverter plate (8), the central flow hole (9) passes through the diverter plate (8), and the inlet (6) is connected to the central cooling groove (3) through the central flow hole (9), and each of the guide grooves (10) is distributed at intervals along the circumference of the central flow hole (9), and one end of each of the guide grooves (10) is respectively connected to the central flow hole (9), and the other end of each of the guide grooves (10) passes through the diverter plate (8) and is respectively connected to each of the second cooling areas (5).

3. The cold plate assembly according to claim 2, wherein: At least two collecting channels (14) are formed on the base plate (1), each of the collecting channels (14) is close to the edge of the base plate (1), and along the circumference of the central cooling groove (3), the adjacent first cooling area (4) and second cooling area (5) form a combined area, the number of the outlets (7) is at least two, and each of the combined areas is connected to each of the outlets (7) through each of the collecting channels (14).

4. The cold plate assembly according to claim 3, wherein: At least two flow passages (15) are constructed on the diverter plate (8), each of the flow passages (15) passes through the diverter plate (8), and each of the flow passages (15) is close to the edge of the diverter plate (8), and each of the collecting channels (14) is connected to each of the outlets (7) through each of the flow passages (15).

5. The cold plate assembly according to claim 3, wherein: The inlet (6) is located at the center of the cover plate (2), and the outlets (7) are distributed at intervals along the circumference of the cover plate (2), and each outlet (7) is close to the edge of the cover plate (2).

6. The cold plate assembly according to claim 1, wherein: The first cooling areas (4) and the second cooling areas (5) are alternately distributed along the circumference of the central cooling groove (3).

7. The cold plate assembly according to claim 1, wherein: A plurality of first separators (11) are formed in the first cooling area (4) and are distributed at intervals. Each of the first separators (11) extends from the central cooling groove (3) to the periphery of the bottom plate (1), and a first cooling channel is formed between two adjacent first separators (11).

8. The cold plate assembly according to claim 7, wherein: A plurality of fluid turbulent bodies (12) are arranged in the first cooling channel, and the fluid turbulent bodies (12) are sequentially spaced and distributed along the extension direction of the first cooling channel.

9. The cold plate assembly according to claim 8, wherein: In a direction from the middle cooling groove (3) to the periphery of the bottom plate (1), the height of each of the disrupting bodies (12) gradually decreases.

10. The cold plate assembly according to claim 8, wherein: Each of the disruptive bodies (12) has a tip facing away from the central cooling groove (3).

11. The cold plate assembly according to claim 8, wherein: The thickness of the partial section of the first separator (11) corresponding to the body-disturbing body (12) is smaller than the thickness of the other partial sections of the first separator (11).

12. The cold plate assembly according to claim 1, wherein A plurality of second separators (13) distributed at intervals are formed in each of the second cooling regions (5), and a second cooling channel is formed between two adjacent second separators (13).

13. The cold plate assembly according to any one of claims 1 to 12, characterized in that A plurality of first spoiler columns (16) located in the central cooling groove (3) are also formed on the bottom plate (1), and the first spoiler columns (16) are spaced apart and distributed in the central cooling groove (3).

14. The cold plate assembly according to claim 13, wherein: A plurality of second spoiler columns (17) are also formed on the bottom plate and are located in the middle cooling groove (3). The second spoiler columns (17) are spaced apart in the middle cooling groove (3), and the second spoiler columns (17) surround the periphery of the first spoiler columns (16). The cross-sectional area of ​​the second spoiler column (17) is smaller than the cross-sectional area of ​​the first spoiler column (16); and / or the spacing between two adjacent second spoiler columns (17) is larger than the spacing between two adjacent first spoiler columns (16).

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