A single-phase liquid cooling cold plate

Abstract

The utility model belongs to liquid cooling technical field discloses a single -phase liquid cooling cold plate, including apron, shunt, flow distribution board, spoiler and heat conduction base plate, apron is seted up with first water inlet and first water outlet on, shunt is seted up with second water inlet in the position of first water inlet, shunt is seted up with second water outlet in the position of first water outlet, shunt is seted up with collecting cavity on, and collecting cavity is linked together with second water outlet, flow distribution board is seted up with a plurality of water inlet channel and a plurality of water outlet channel, and water inlet channel is linked together with second water inlet, and water outlet channel is linked together with collecting cavity, and water inlet channel and water outlet channel are isolated setting, spoiler is provided with flow channel, and flow channel is linked together with water inlet channel, water outlet channel all, heat conduction base plate sets up in the one side of spoiler away from flow distribution board. A plurality of water inlet channel and a plurality of water outlet channel make cooling liquid even flow in single -phase liquid cooling cold plate, reduce the cooling liquid temperature difference at first water inlet and first water outlet, improve heat exchange capacity.

Description

Technical Field

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

[0002] Liquid cooling is a technology that uses liquid as a heat dissipation medium, directly or indirectly contacting the heat source, and carrying away the heat through the flow of the liquid, and then dissipating the heat to the external environment through devices such as radiators and heat sinks.

[0003] In related technologies, single-phase liquid-cooled cold plates include flow channels and thermally conductive substrates. Coolant flows within the flow channels, and the thermally conductive substrates come into contact with a heat source to transfer heat from the heat source to the coolant. Single-phase liquid-cooled cold plates typically employ a one-in-one-out or one-in-two-out design. Due to the long coolant flow path, poor flow uniformity, and the presence of a boundary layer effect within the flow channels, the inlet and outlet temperature difference of single-phase liquid-cooled cold plates is large, resulting in poor heat exchange capacity and high pump power loss. Utility Model Content

[0004] The purpose of this invention is to provide a single-phase liquid-cooled plate to solve the problems of large inlet and outlet temperature difference, poor heat exchange capacity, and high pump power loss in single-phase liquid-cooled plates.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A single-phase liquid-cooled plate includes: a cover plate having a first water inlet and a first water outlet; a flow divider having a second water inlet corresponding to the first water inlet and a second water outlet corresponding to the first water outlet, the flow divider having a collecting cavity communicating with the second water outlet; a flow distribution plate having multiple water inlet channels and multiple water outlet channels, the water inlet channels communicating with the second water inlet and the water outlet channels communicating with the collecting cavity, the water inlet channels and the water outlet channels being isolated from each other; a flow deflector having flow channels communicating with both the water inlet channels and the water outlet channels; and a thermally conductive substrate disposed on the side of the flow deflector away from the flow distribution plate.

[0007] Preferably, there is one first inlet and two first outlets, with the first inlet located between the two first outlets, and two corresponding collection cavities.

[0008] Preferably, the cross-sectional shape of the collecting cavity is triangular, and the second outlet is located at the corner of the collecting cavity.

[0009] Preferably, a flow collector is provided on the side of the flow divider facing the cover plate. The flow collector is disposed in the flow collection cavity and is used to guide the coolant to flow to the second outlet.

[0010] Preferably, the diverter plate is provided with a support column on the side facing the cover plate, and the support column is disposed in the collecting cavity and located on one side of the collecting block.

[0011] Preferably, there are three water inlet channels and four water outlet channels, which are arranged alternately.

[0012] Preferably, the flow distribution plate has a diversion groove, the water inlet channels are all disposed in the diversion groove, and the water outlet channel is disposed on the surface of the flow distribution plate facing the diversion plate, so that the water inlet channel and the water outlet channel are isolated.

[0013] Preferably, the extension direction of the water inlet channel is parallel to the extension direction of the water outlet channel.

[0014] Preferably, the spoiler is provided with multiple fins, which are connected by diffusion welding, and the fins are connected to a spoiler section.

[0015] Preferably, multiple flow-dispersing portions are provided, and the multiple flow-dispersing portions are spaced apart along the extension direction of the fins.

[0016] The beneficial effects of this utility model are:

[0017] A single-phase liquid-cooled plate includes a cover plate, a flow divider plate, a flow distribution plate, a baffle plate, and a heat-conducting substrate. The cover plate has a first water inlet and a first water outlet. The flow divider plate has a second water inlet corresponding to the first water inlet and a second water outlet corresponding to the first water outlet. The flow divider plate has a collecting cavity that communicates with the second water outlet. The flow distribution plate has multiple water inlet channels and multiple water outlet channels. The water inlet channels communicate with the second water inlet, and the water outlet channels communicate with the collecting cavity. The water inlet channels and water outlet channels are isolated from each other. The baffle plate has flow channels that communicate with both the water inlet channels and the water outlet channels. The heat-conducting substrate is located on the side of the baffle plate away from the flow distribution plate.

[0018] In this way, multiple inlet and outlet channels can avoid a single or excessively long flow path for the coolant, reduce the temperature difference between the first inlet and the first outlet, and allow the coolant in each channel to absorb heat evenly. After being collected in the collection chamber, the coolant flows out through the first outlet, improving the uniformity of flow distribution and heat exchange capacity, and reducing pump power loss. The baffle can turbulent the coolant flow, further breaking the boundary layer effect, reducing the temperature difference of the coolant inside the channel, and making the heat exchange more uniform. Attached Figure Description

[0019] Figure 1 This is an exploded view of a single-phase liquid-cooled plate in one embodiment of this utility model;

[0020] Figure 2 This is a side sectional view of a single-phase liquid-cooled cold plate in one embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the diverter plate in one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the flow distribution plate in one embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the spoiler structure in one embodiment of the present invention;

[0024] Figure 6 This is a side view of the spoiler in one embodiment of the present invention;

[0025] Figure 7 This is a velocity particle streamline diagram of a single-phase liquid-cooled plate in one embodiment of this utility model;

[0026] Figure 8 This is a velocity cloud diagram of the flow channel section of a single-phase liquid-cooled plate in one embodiment of this utility model;

[0027] Figure 9 It is an exploded view of a liquid cooling plate with a one-inlet-one-outlet design in related technologies;

[0028] Figure 10 This is a simulation comparison curve of thermal resistance and flow resistance between a single-phase liquid-cooled plate and a conventional fin in one embodiment of this utility model.

[0029] In the picture:

[0030] 1. Cover plate; 11. First inlet; 12. First outlet; 2. Diverter plate; 21. Second inlet; 22. Second outlet; 23. Collector cavity; 24. Collector block; 25. Support column; 26. Connecting channel; 3. Flow distribution plate; 31. Inlet channel; 32. Outlet channel; 33. Diverter trough; 4. Baffle plate; 41. Flow channel; 42. Fin; 421. Baffle part. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] See Figure 1 This utility model provides a single-phase liquid-cooled plate, including a cover plate 1, a flow divider plate 2, a flow distribution plate 3, a baffle plate 4, and a heat-conducting substrate (not shown in the figure). The cover plate 1 has a first water inlet 11 and a first water outlet 12. The flow divider plate 2 has a second water inlet 21 at the position corresponding to the first water inlet 11 and a second water outlet 22 at the position corresponding to the first water outlet 12. The flow divider plate 2 has a collection cavity 23, which is connected to the second water outlet 22. The flow distribution plate 3 has multiple water inlet channels 31 and multiple water outlet channels 32. The water inlet channels 31 are connected to the second water inlet 21, and the water outlet channels 32 are connected to the collection cavity 23. The water inlet channels 31 and the water outlet channels 32 are isolated from each other. The baffle plate 4 has a flow channel 41, which is connected to both the water inlet channels 31 and the water outlet channels 32. The heat-conducting substrate is disposed on the side of the baffle plate 4 away from the flow distribution plate 3.

[0036] In this embodiment, the cover plate 1, the diverter plate 2, the flow distribution plate 3, the baffle plate 4, and the heat-conducting substrate have the same cross-sectional area and are arranged in sequence along the vertical direction. The first inlet 11 is connected to an inlet manifold (not shown in the figure), and the first outlet 12 is connected to an outlet manifold (not shown in the figure) so that the coolant flows into and out of the single-phase liquid cooling plate. The coolant passes through the first inlet 11, the second inlet 21, the inlet channel 31 and enters the flow channel 41 in sequence. The coolant carrying heat flows through the flow channel 41 through the outlet channel 32, the collection chamber 23, the second outlet 22 and the first outlet 12 to the outside, realizing the flow of coolant in the single-phase liquid cooling plate.

[0037] Thus, by setting multiple inlet channels 31 and multiple outlet channels 32 connected to the flow channel 41, the coolant flow path can be avoided to be too long and the path is too simple, the temperature difference of the coolant at the first inlet 11 and the first outlet 12 can be reduced, so that the coolant in each flow channel 41 can absorb heat evenly, and after being collected by the collection chamber 23, it flows out through the first outlet 12, thereby improving the heat exchange capacity and reducing pump power loss; the baffle 4 can turbulent the coolant, break the boundary layer effect, and make the heat exchange more uniform.

[0038] See Figure 1 In some embodiments, there is one first inlet 11 and two first outlets 12. The first inlet 11 is located between the two first outlets 12, and there are two corresponding collection cavities 23.

[0039] In this embodiment, the first inlet 11 and the first outlet 12 are spaced apart along the length of the cover plate 1, and the two first outlets 12 are equidistant from the first inlet 11. Two sets of water outlet channels 32 are provided, and the two sets of water outlet channels 32 are respectively connected to the two collection cavities 23.

[0040] Thus, by setting two symmetrical first outlets 12, it is easy to divide the coolant, control the flow rate in the flow channel 41, and allow the coolant flowing out of the flow channel 41 to enter the two collection chambers 23 respectively, so as to achieve uniform heat exchange, avoid heat accumulation due to excessively long coolant flow path, reduce the temperature difference between the first inlet 11 and the first outlet 12, effectively utilize the space in the thickness direction of the flow divider plate 2 and the flow distribution plate 3, so that the coolant can flow stably in a specific direction and reduce pump power loss.

[0041] It is understandable that the number and location of the first inlet 11 and the first outlet 12 can be adjusted according to actual needs, as long as the coolant can flow stably in the collection chamber 23, the inlet channel 31, and the outlet channel 32. Further details are not provided here.

[0042] See Figure 2In some embodiments, the cross-sectional shape of the collecting cavity 23 is triangular, and the second outlet 22 is located at the corner of the collecting cavity 23.

[0043] In this embodiment, the two collecting cavities 23 are symmetrically arranged along the axis of symmetry in the width direction of the diverter plate 2, and the straight edges of the two collecting cavities 23 are arranged close to each other. The two second outlets 22 are respectively arranged at the corners of the two collecting cavities 23 that are far apart from each other.

[0044] Thus, the coolant flowing out from the two sets of water outlet channels 32 enters the inside of the collection chamber 23. Since the collection chamber 23 is triangular, it can guide the coolant to flow towards the second water outlet 22 located at the corner of the collection chamber 23, and deliver it to the outside through the first water outlet 12. This improves the uniformity of coolant distribution, reduces eddies and stagnation during the collection process, reduces flow resistance, and makes the flow of coolant in the single-phase liquid cooling plate more uniform and smooth. This reduces the temperature difference of coolant at the first water inlet 11 and the first water outlet 12, improves heat exchange capacity, and reduces pump power loss.

[0045] It is understandable that the cross-sectional shape of the manifold 23 can also be conical, trapezoidal, or other structures. The cross-sectional shape of the manifold 23 can be adjusted according to actual needs, as long as it can guide the flow direction of the coolant. No further examples will be listed here.

[0046] See Figure 1 and Figure 2 In some embodiments, a flow collector 24 is provided on the side of the flow divider 2 facing the cover plate 1. The flow collector 24 is disposed in the flow collecting cavity 23 and is used to guide the coolant to flow to the second outlet 22.

[0047] In this embodiment, a flow collecting block 24 is provided in a flow collecting cavity 23. The flow collecting block 24 is composed of two symmetrical triangular structures, and the flow collecting cavity 23 is formed between the two symmetrical triangles, so that the flow direction of the coolant can be guided by the flow collecting block 24 after it flows out through the water outlet channel 32.

[0048] Thus, by setting the collector block 24, the flow direction of the coolant in the distributor plate 2 can be controlled, so that the coolant flowing out of the outlet channel 32 flows in the collector cavity 23 and is collected by the collector block 24, thereby allowing the coolant in the two collector cavities 23 to be discharged to the second outlet 22 and flow to the outside through the first outlet 12, improving the uniformity of the distribution, reducing the flow resistance of the coolant in the collector cavity 23, and improving the heat exchange capacity.

[0049] It is understandable that multiple flow collectors 24 can be set in a flow collector cavity 23, as long as they can guide the flow direction of the coolant. The number, shape and setting position of the flow collectors 24 can be adjusted according to actual needs, and will not be listed in detail here.

[0050] See Figure 1 and Figure 2 In some embodiments, a support column 25 is provided on the side of the diverter plate 2 facing the cover plate 1. The support column 25 is disposed in the collection cavity 23 and located on one side of the collection block 24.

[0051] In this embodiment, a plurality of support columns 25 are provided in a flow collecting cavity 23, and the plurality of support columns 25 are spaced apart. The support columns 25 are located on the side of the second water outlet 22 away from the flow collecting block 24.

[0052] In this way, the support block can not only enhance the structural strength of the flow distribution plate 2 at the opening of the flow collection cavity 23 and reduce the risk of deformation of the flow distribution plate 2 under the flow pressure of the coolant, but also guide the coolant to improve the uniformity of the flow distribution, so that the coolant can enter the second outlet 22 more evenly, improve the heat exchange capacity, and reduce the temperature difference between the first inlet 11 and the first outlet 12.

[0053] Understandably, the number and location of the support columns 25 can be adjusted according to actual needs, and will not be listed in detail here.

[0054] See Figure 3 In some embodiments, there are three water inlet channels 31 and four water outlet channels 32, with the water inlet channels 31 and the water outlet channels 32 arranged alternately.

[0055] In this embodiment, a connecting channel 26 is provided on the diversion plate 2 at the position corresponding to the water outlet channel 32. The connecting channel 26 is connected to the collection cavity 23. The diversion plate 2 is welded to the flow distribution plate 3 so that the three water inlet channels 31 are connected to the second water inlet 21. There are two water outlet channels 32 in each group. Correspondingly, there are two connecting channels 26 in each collection cavity 23 so that the water outlet channel 32 is connected to the collection cavity 23.

[0056] Thus, the flow channel 41 is connected to three inlet channels 31 and four outlet channels 32 respectively, which can increase the number of flow paths of the coolant and the uniformity of coolant distribution. This allows the coolant to be distributed by the flow distribution plate 3 and to fully contact the baffle plate 4, thereby reducing the interfacial thermal resistance at the connection between the heat-conducting substrate and the heat source, improving heat exchange capacity, and reducing pump power loss. The staggered arrangement of the inlet channels 31 and outlet channels 32 can effectively utilize the space of the flow distribution plate 3, making the flow path of the coolant more reasonable. This facilitates the delivery of coolant through the second inlet 21 and the three inlet channels 31 to the flow channel 41 in the baffle plate 4, and the stable delivery of coolant in the baffle plate 4 to the collection chamber 23 through the four outlet channels 32. The coolant is then centrally discharged through the collection chamber 23 to the second outlet 22 and the first outlet 12, avoiding heat accumulation caused by uneven coolant flow.

[0057] It is understandable that the number and location of the water inlet channel 31 and the water outlet channel 32 can be adjusted according to actual needs, and will not be listed in detail here.

[0058] See Figure 2 and Figure 3 In some embodiments, the flow distribution plate 3 has a diversion groove 33, the water inlet channel 31 is disposed in the diversion groove 33, and the water outlet channel 32 is disposed on the surface of the flow distribution plate 3 facing the diversion plate 2, so that the water inlet channel 31 and the water outlet channel 32 are isolated.

[0059] In this embodiment, the diversion channel 33 has a H-shaped structure. Three water inlet channels 31 are respectively arranged on the three sides of the diversion channel 33 extending along the width direction of the flow distribution plate 3. Two water outlet channels 32 that are close to each other are respectively arranged between the three water inlet channels 31. Two water outlet channels 32 that are far apart from each other are respectively arranged outside the diversion channel 33. The top surfaces of the four water outlet channels 32 are flush with and protrude from the top surfaces of the water inlet channels 31, so that the four water outlet channels 32 are respectively connected to the four connecting channels 26 on the diversion plate 2. The coolant delivered through the second water inlet 21 can flow into the diversion channel 33 and enter the baffle plate 4 after being diverted by the three water inlet channels 31. The coolant output from the baffle plate 4 can be output through the four water outlet channels 32, so that the water inlet channels 31 and the water outlet channels 32 do not interfere with each other, thus improving the stability of the coolant flow.

[0060] Thus, by setting up the diversion channel 33 and placing the inlet channel 31 inside the diversion channel 33, an independent flow space can be provided for the coolant, and the coolant entering the baffle 4 can be diverted to avoid concentrated impact and uneven distribution of the coolant on the baffle 4. The outlet channel 32 and the inlet channel 31 are set apart to avoid interference caused by overlapping channels or being too close, thereby improving heat exchange capacity, reducing the temperature difference of the coolant at the first inlet 11 and the first outlet 12, and reducing pump power loss.

[0061] It is understandable that the two water outlet channels 32 in the same group can also be set outside the diversion channel 33. In this embodiment, some water outlet channels 32 are set inside the diversion channel 33 and spaced apart from the water inlet channel 31. This is to make the arrangement of the water inlet channel 31 and the water outlet channel 32 more compact, effectively utilize the space of the flow distribution plate 3, and increase the number of water inlet channels 31 and water outlet channels 32. The relative positions of the water inlet channel 31 and the water outlet channel 32 can be adjusted according to actual needs, which will not be elaborated here.

[0062] See Figure 3 In some embodiments, the extension direction of the water inlet channel 31 is parallel to the extension direction of the water outlet channel 32.

[0063] In this embodiment, the extension direction of the water inlet channel 31 and the extension direction of the water outlet channel 32 are both parallel to the width direction of the flow distribution plate 3.

[0064] This reduces coolant directional changes, avoids additional resistance and coolant stagnation in localized areas, improves flow uniformity and heat exchange capacity, makes the coolant flow direction within the single-phase liquid cooling plate more uniform, reduces energy loss and uneven heat distribution caused by different directions, reduces the coolant temperature difference between the first inlet 11 and the first outlet 12, and reduces pump power loss.

[0065] It is understandable that the extension direction of the water inlet channel 31 and the extension direction of the water outlet channel 32 can also be parallel to the length direction of the flow distribution plate 3. The extension direction of the water inlet channel 31 and the extension direction of the water outlet channel 32 can be adjusted according to actual needs, and will not be listed in detail here.

[0066] See Figure 4 and Figure 5 In some embodiments, the spoiler 4 is provided with a plurality of fins 42, which are connected by diffusion welding, and the fins 42 are connected to a spoiler portion 421. Further, in some embodiments, a plurality of spoiler portions 421 are provided, which are spaced apart along the extending direction of the fins 42.

[0067] In this embodiment, multiple sets of fins 42 are provided, and the multiple sets of fins 42 are arranged at intervals along the length direction of the baffle 4. Multiple fins 42 in each set of fins 42 are arranged at intervals along the width direction of the baffle 4. The baffle portion 421 is integrally formed with the fin 42. Specifically, the baffle portion 421 is processed on the fin 42 by continuous etching. Multiple baffle portions 421 on each fin 42 are equally spaced. Multiple baffle portions 421 are staggered vertically along the length direction of the baffle 4. The space between the baffle portion 421 and the fin 42 and between multiple fins 42 forms a flow channel 41. That is, baffle portions 421 are provided at the top, bottom and middle of the flow channel 41.

[0068] Thus, when the coolant flows in the flow channel 41, it is disturbed by the turbulence part 421, which can break the boundary layer effect and form a scouring turbulence, so that the heat exchange between the coolant and the wall of the flow channel 41 is more sufficient, reducing the thermal resistance between the heat-conducting substrate and the heat source, reducing the temperature difference of the coolant at the first inlet 11 and the first outlet 12, and enhancing the heat exchange effect.

[0069] It is understandable that the fins 42 can also be fixedly connected to the baffle 4 by bonding. The connection method between the fins 42 and the baffle 4 can be adjusted according to actual needs, so that the fins 42 can remain fixed when the coolant flows between the fins 42. The arrangement and number of the baffles 421 can be flexibly adjusted, and will not be listed in detail here.

[0070] Figure 6 The velocity-particle streamline diagram of a single-phase liquid-cooled plate is shown below. Figure 6 As can be seen, the coolant entering the inlet channel 31 can be evenly distributed and enter the flow channel 41. After exchanging heat, it enters the collection chamber 23 through the outlet channel 32 and is discharged to the second outlet 22, thus improving the uniformity of the distribution.

[0071] Figure 7 This is a velocity contour plot of the flow channel section 41 of a single-phase liquid-cooled plate. Figure 7 As can be seen, the coolant flows at a uniform velocity after entering flow channel 41, breaking the boundary layer effect and improving the heat exchange capacity.

[0072] Figure 8 The liquid cooling plate, designed for one inlet and one outlet in related technologies, has fins 42 that are rectangular plates with uniform length and width, and each has one inlet and one outlet.

[0073] Figure 9 For single-phase liquid cooling plate and Figure 8 The simulation comparison curves of thermal resistance and flow resistance of the liquid-cooled cold plate in the one-inlet-one-outlet design are shown. The horizontal axis represents flow rate in LPM, and the vertical axis represents pressure difference in KPa. Figure 9 As can be seen, single-phase liquid-cooled cold plates have lower thermal resistance and flow resistance, thereby improving heat exchange capacity and reducing pump power loss.

[0074] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A single-phase liquid-cooled cold plate, characterized in that, include: Cover plate (1), on which a first inlet (11) and a first outlet (12) are provided; A diversion plate (2) is provided with a second inlet (21) at the position corresponding to the first inlet (11), and a second outlet (22) is provided at the position corresponding to the first outlet (12). A collection cavity (23) is provided on the diversion plate (2) and the collection cavity (23) is connected to the second outlet (22). The flow distribution plate (3) has multiple inlet channels (31) and multiple outlet channels (32). The inlet channels (31) are connected to the second inlet (21), and the outlet channels (32) are connected to the collection chamber (23). The inlet channels (31) and the outlet channels (32) are isolated from each other. A baffle plate (4) is provided with a flow channel (41), which is connected to the water inlet channel (31) and the water outlet channel (32); A thermally conductive substrate is disposed on the side of the baffle plate (4) away from the flow distribution plate (3).

2. The single-phase liquid-cooled plate according to claim 1, characterized in that, There is one first inlet (11) and two first outlets (12). The first inlet (11) is located between the two first outlets (12), and there are two corresponding collection cavities (23).

3. The single-phase liquid-cooled plate according to claim 1, characterized in that, The cross-sectional shape of the collecting cavity (23) is triangular, and the second outlet (22) is located at the corner of the collecting cavity (23).

4. The single-phase liquid-cooled plate according to claim 1, characterized in that, The flow divider (2) has a flow collector (24) on the side facing the cover plate (1). The flow collector (24) is located in the flow collection cavity (23) and is used to guide the coolant to flow to the second outlet (22).

5. The single-phase liquid-cooled plate according to claim 4, characterized in that, The diverter plate (2) is provided with a support column (25) on the side facing the cover plate (1). The support column (25) is located in the collection cavity (23) and on the side of the collection block (24).

6. The single-phase liquid-cooled cold plate according to any one of claims 1-5, characterized in that, There are three water inlet channels (31) and four water outlet channels (32), which are arranged alternately.

7. The single-phase liquid-cooled cold plate according to any one of claims 1-5, characterized in that, The flow distribution plate (3) has a diversion groove (33), the water inlet channel (31) is located in the diversion groove (33), and the water outlet channel (32) is located on the surface of the flow distribution plate (3) facing the diversion plate (2), so that the water inlet channel (31) and the water outlet channel (32) are isolated.

8. The single-phase liquid-cooled plate according to claim 7, characterized in that, The extension direction of the water inlet channel (31) is parallel to the extension direction of the water outlet channel (32).

9. The single-phase liquid-cooled cold plate according to any one of claims 1-5, characterized in that, The spoiler (4) is provided with a plurality of fins (42), which are connected by diffusion welding, and the fins (42) are connected to a spoiler part (421).

10. The single-phase liquid-cooled plate according to claim 9, characterized in that, Multiple flow-dispersing parts (421) are provided, and the multiple flow-dispersing parts (421) are spaced apart along the extension direction of the fin (42).

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