Liquid cooling plate with uniform temperature control

Abstract

The invention provides a liquid cooling plate with uniform temperature control, which comprises a bottom plate, a first groove and a second groove are formed in the upper surface of the bottom plate, the first groove is formed in the middle of the bottom plate in the width direction and extends along the length direction of the bottom plate, a liquid inlet hole is formed in the first groove, and a liquid outlet hole is formed in the second groove; the second groove is at least arranged along the edges of two opposite sides in the length direction of the bottom plate, and a liquid outlet hole is formed in the second groove; the lower surface of the first partition plate is attached to the upper surface of the bottom plate, and a plurality of first strip-shaped holes which are formed in parallel at intervals are formed in the middle of the first partition plate; the lower surface of the second partition plate is attached to the upper surface of the first partition plate, and a plurality of second strip-shaped holes which are formed in parallel at intervals are formed in the middle of the second partition plate; the lower surface of the top plate is attached to the upper surface of the second partition plate, and a mounting area is formed on the upper surface of the top plate. According to the liquid cooling plate capable of uniformly controlling the temperature, the temperature of the object to be cooled is uniform, and the heat dissipation efficiency is high.

Description

Technical Field

[0001] The invention relates to the field of radiators, and in particular to a liquid cooling plate with uniform temperature control. Background Art

[0002] Existing objects to be cooled (chips, power devices / modules, etc.) generate heat during operation, and the temperature in the middle of the object to be cooled is high while the temperature around it is low.

[0003] When an existing uniformly temperature-controlled liquid cooling plate cools an object to be cooled, the uniformly temperature-controlled liquid cooling plate usually dissipates heat indiscriminately to various areas of the object to be cooled through the coolant, resulting in a high center temperature of the object to be cooled and a low surrounding temperature. In order to lower the temperature of the center area of ​​the object to be cooled to a predetermined temperature, the flow rate of the coolant is increased and the temperature of the coolant is lowered, resulting in uneven temperature of the object to be cooled, low heat dissipation efficiency, and high energy consumption. Summary of the invention

[0004] In view of the above problems in the prior art, an object of the present invention is to provide a liquid cooling plate with uniform temperature control, which can make the temperature of the object to be cooled uniform and have high heat dissipation efficiency.

[0005] In order to solve the above problems, the present invention provides a uniformly temperature-controlled liquid cooling plate, the uniformly temperature-controlled liquid cooling plate comprising:

[0006] A bottom plate, wherein a first groove and a second groove are formed on the upper surface of the bottom plate, the first groove is arranged in the middle of the bottom plate in the width direction and extends along the length direction of the bottom plate, a liquid inlet hole is formed in the first groove, the second groove is arranged at least along the edges of two opposite sides in the length direction of the bottom plate, a liquid outlet hole is formed in the second groove, the upper surface of the bottom plate is formed into a plane, and the first groove and the second groove can accommodate cooling liquid;

[0007] A first partition, wherein the lower surface of the first partition is attached to the upper surface of the bottom plate, a plurality of first strip-shaped holes are formed in the middle of the first partition, which are spaced apart and parallel to each other, the first strip-shaped holes intersect the first groove and the second groove, the upper surface and the lower surface of the first partition are both formed into planes, and the bottom plate covers all the first strip-shaped holes;

[0008] A second separator, wherein the lower surface of the second separator is attached to the upper surface of the first separator, a plurality of second strip-shaped holes which are spaced apart and parallel to each other are formed in the middle of the second separator, the first strip-shaped holes and the second strip-shaped holes intersect, and the upper surface and the lower surface of the second separator are both formed into planes;

[0009] A top plate, the lower surface of which is attached to the upper surface of the second partition plate and covers all of the second strip-shaped holes, and the upper surface of the top plate is formed with a mounting area for arranging objects to be cooled.

[0010] Furthermore, the base plate further comprises:

[0011] A plurality of branch holes, the plurality of branch holes are arranged on both sides of the first groove in the width direction and penetrate the bottom plate in the thickness direction of the bottom plate, and are arranged at intervals along the length direction of the first groove, the branch holes are in the shape of strips and extend from the first groove to the second groove, and the branch holes are connected to the first groove;

[0012] A plurality of blocks, each of the blocks corresponds to the plurality of branch holes one by one, the blocks are inserted into the branch holes from the lower surface of the bottom plate to close the bottom of the branch holes, the top of the blocks is higher than the bottom of the first groove, and the height of the blocks in the middle area corresponding to the mounting area of ​​the top plate is lower than the height of the blocks in the edge area corresponding to the mounting area of ​​the top plate.

[0013] Furthermore, the installation areas include multiple installation areas, and the multiple installation areas are spaced apart along the length direction of the top plate. The first strip holes and the second strip holes each include multiple groups, and the multiple groups of the first strip holes and the multiple groups of the second strip holes each correspond one-to-one to the multiple installation areas.

[0014] Furthermore, the block comprises a plurality of groups, the plurality of groups of block correspond one-to-one to the plurality of installation areas, and the height of the plurality of block in the group corresponding to the installation area located upstream is higher than the height of the plurality of block in the group corresponding to the installation area located downstream.

[0015] Furthermore, the heights of the plurality of stoppers are set according to a difference between an actual flow resistance of the coolant and a predetermined flow resistance.

[0016] Furthermore, the second groove is also arranged along the edge of the first side in the width direction of the bottom plate to form a "U" shape.

[0017] Further, the liquid inlet hole is arranged adjacent to a second side edge, the second side edge is arranged opposite to the first side edge, and the liquid outlet hole is arranged adjacent to the first side edge.

[0018] Furthermore, a first angle formed by the first strip-shaped hole and the first direction of the length direction of the first partition is 30 to 60 degrees, a second angle formed by the second strip-shaped hole and the first direction of the length direction of the second partition is 150 to 120 degrees, and the first angle and the second angle are complementary to each other.

[0019] Further, the first separator includes a plurality of first sheet plates, and the plurality of first sheet plates are stacked to form the first separator, and the second separator includes a plurality of second sheet plates, and the plurality of second sheet plates are stacked to form the second separator.

[0020] Furthermore, the uniformly temperature-controlled liquid cooling plate further comprises:

[0021] A liquid inlet connector, the liquid inlet connector being connected to the liquid inlet hole;

[0022] A liquid outlet joint, wherein the liquid outlet joint is connected to the liquid outlet hole.

[0023] Due to the above technical solution, the present invention has the following beneficial effects:

[0024] The uniform temperature controlled liquid cooling plate according to the present invention comprises a bottom plate, a first partition plate, a second partition plate and a top plate. The first groove is arranged in the middle of the bottom plate in the width direction, and the second groove is arranged at the edge of the bottom plate in the length direction. The cooling liquid first flows into the first groove from the outside, and then flows out from the second groove to the outside. The initial temperature of the cooling liquid is relatively low, and the middle part of the uniform temperature controlled liquid cooling plate is firstly dissipated (the middle part of the uniform temperature controlled liquid cooling plate corresponds to the middle part of the object to be cooled), that is, the middle area with relatively high temperature in the object to be cooled is firstly dissipated, and the cooling liquid flows from the middle part of the liquid cooling plate to the edge, that is, the edge area with relatively low temperature in the object to be cooled is dissipated later. Therefore, the path through which the cooling liquid flows can be adjusted in a targeted manner according to the temperature distribution of the object to be cooled, so that the temperature of each area of ​​the object to be cooled can be uniform, and the conventional uniform temperature controlled liquid cooling plate is avoided. In order to ensure the heat dissipation of the high temperature area in the middle of the object to be cooled, the edge of the object to be cooled is over-dissipated, which can improve the heat dissipation efficiency, save energy, and make the temperature of each area of ​​the object to be cooled uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments or prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 is a structural diagram of a liquid cooling plate with uniform temperature control according to the present invention;

[0027] Figure 2 yes Figure 1 An exploded view of a liquid cooling plate with uniform temperature control according to an embodiment;

[0028] Figure 3 is a structural diagram of a base plate according to a first embodiment of the present invention;

[0029] Figure 4 is a structural diagram of a base plate according to a second embodiment of the present invention;

[0030] Figure 5 yes Figure 4 A structural diagram of the bottom plate of the embodiment with the block removed;

[0031] Figure 6 is a structural diagram of a first baffle according to an embodiment of the present invention;

[0032] Figure 7 is a structural diagram of a second baffle according to an embodiment of the present invention;

[0033] Figure 8 yes Figure 6 The first separator of the embodiment and Figure 7 A stacking diagram of the second separator of the embodiment.

[0034] Reference numerals:

[0035] 100, top plate; 201, second sheet plate; 210, second partition plate; 211, second strip-shaped hole; 202, first sheet plate; 220, first partition plate; 221, first strip-shaped hole; 300, bottom plate; 310, first groove; 320, liquid inlet hole; 330, second groove; 340, liquid outlet hole; 350, branch hole; 360, stopper. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0038] Next, a liquid cooling plate with uniform temperature control according to an embodiment of the present invention will be described.

[0039] like Figures 1 to 8As shown, the uniform temperature-controlled liquid cooling plate according to the embodiment of the present invention includes: a bottom plate 300 , a first partition plate 220 , a second partition plate 210 and a top plate 100 .

[0040] First, the bottom plate 300 is described. The upper surface of the bottom plate 300 is formed with a first groove 310 and a second groove 330 which are independent of each other. The first groove 310 is arranged in the middle of the width direction of the bottom plate 300 and extends along the length direction of the bottom plate 300. A liquid inlet 320 is formed in the first groove 310. The second groove 330 is arranged along the edges of two opposite sides in the length direction of the bottom plate 300. A liquid outlet 340 is formed in the second groove 330. The upper surface of the bottom plate 300 is formed as a plane. The first groove 310 and the second groove 330 can accommodate cooling liquid.

[0041] like Figures 2 to 5 As shown, the coolant enters the first groove 310 from the liquid inlet hole 320. The first groove 310 is provided in the middle of the width direction of the bottom plate 300 and extends along the length direction. The middle of the width direction of the bottom plate 300 corresponds to the middle of the object to be cooled, so that the coolant first dissipates heat from the middle of the object to be cooled.

[0042] The cooling liquid enters the liquid outlet 340 from the second groove 330. The second groove 330 is arranged at least along two opposite sides of the length direction of the bottom plate 300, and the liquid outlet 340 is arranged in the second groove 330. That is, the second groove 330 can be arranged in two grooves along two opposite sides of the length direction of the bottom plate 300, and a liquid outlet 340 is arranged in each groove. The second groove 330 can also form a "U"-shaped groove, and a liquid outlet 340 is arranged in this "U"-shaped groove. The two opposite sides in the length direction of the bottom plate 300 correspond to the edges in the length direction of the object to be cooled, so that the cooling liquid can dissipate heat from the edges of the object to be cooled.

[0043] Therefore, the temperature of the middle part of the object to be cooled is high, the temperature of the edge is low, and the initial temperature of the coolant is low. The coolant first dissipates heat in the middle part of the object to be cooled, and the cooling effect is relatively strong. When the temperature rises, the coolant dissipates heat at the edge of the object to be cooled, and the cooling effect is relatively weak, but the temperature of the edge of the object to be cooled is low. Therefore, the flow sequence of the coolant can be adjusted according to the temperature distribution of the object to be cooled to improve the heat dissipation efficiency.

[0044] Next, the first partition plate 220 and the second partition plate 210 are described. The lower surface of the first partition plate 220 is attached to the upper surface of the bottom plate 300, and a plurality of first strip-shaped holes 221 are formed in the middle of the first partition plate 220, which are arranged at intervals and parallel to each other. The first strip-shaped holes 221 intersect with the first groove 310 and the second groove 330. The upper and lower surfaces of the first partition plate 220 are both formed into planes, and the bottom plate 300 covers all the first strip-shaped holes 221. The lower surface of the second partition plate 210 is attached to the upper surface of the first partition plate 220, and a plurality of second strip-shaped holes 211 are formed in the middle of the second partition plate 210, which are arranged at intervals and parallel to each other. The first strip-shaped holes 221 and the second strip-shaped holes 211 intersect with each other, and the upper and lower surfaces of the second partition plate 210 are both formed into planes.

[0045] like Figure 2 , Figures 6 to 8 As shown, the coolant in the first groove 310 flows upward, passes through the first strip hole 221 of the first partition 220, and flows from the middle of the first strip hole 221 to the end of the first strip hole 221, so that the coolant flows from the middle of the liquid cold plate to the edge. The coolant also flows from the first strip hole 221 to the second strip hole 211 through the intersection of the first strip hole 221 of the first partition 220 and the second strip hole 211 of the second partition 210, and the coolant flows from the middle of the second strip hole 211 to the end of the second strip hole 211, so that the coolant flows in layers, and the flow directions of the upper and lower layers of coolant intersect, so that the distribution of the coolant is more uniform, and the uniformity of heat dissipation is improved. The first partition 220 and the second partition 210 can increase the contact area of ​​the coolant and improve the heat dissipation efficiency.

[0046] Next, the top plate 100 is described. The bottom surface of the top plate 100 is attached to the top surface of the second partition plate 210 and covers all the second strip holes 211. The top surface of the top plate 100 forms a mounting area for placing objects to be cooled.

[0047] An object to be cooled is disposed in the mounting area of ​​the upper surface of the top plate 100 , so that heat can be dissipated from the object to be cooled.

[0048] The upper surface of the bottom plate 300, the upper surface and lower surface of the first partition plate 220, the upper surface and lower surface of the second partition plate 210, and the lower surface of the top plate 100 are all planes, which can reduce the difficulty of processing and facilitate the attachment and connection of the bottom plate 300, the first partition plate 220, the second partition plate 210 and the top plate 100. The top plate 100 covers the second strip holes 211 and the bottom plate 300 covers the first strip holes 221 to prevent leakage of the coolant.

[0049] The above uniform temperature controlled liquid cooling plate comprises a bottom plate 300, a first partition plate 220, a second partition plate 210 and a top plate 100. The first groove 310 is arranged in the middle of the bottom plate 300 in the width direction, and the second groove 330 is arranged at the edge of the bottom plate 300 in the length direction. The cooling liquid first flows into the first groove 310 from the outside, and then flows out to the outside from the second groove 330. The initial temperature of the cooling liquid is relatively low, and the middle part of the uniform temperature controlled liquid cooling plate is firstly radiated (the middle part of the uniform temperature controlled liquid cooling plate corresponds to the middle part of the object to be cooled), that is, the middle area with a relatively high temperature in the object to be cooled is firstly radiated, and the cooling liquid flows from the middle part of the liquid cooling plate to the edge, that is, the edge area with a relatively low temperature in the object to be cooled is then radiated. Therefore, the path of the coolant flow can be adjusted in a targeted manner according to the temperature distribution of the object to be cooled, so that the temperature of each area of ​​the object to be cooled can be uniform, and the situation in which the conventional liquid cooling plate with uniform temperature control excessively cools the edge of the object to be cooled in order to ensure heat dissipation of the high temperature area in the middle of the object to be cooled can be avoided. This can improve the heat dissipation efficiency, save energy, and make the temperature of the object to be cooled uniform.

[0050] In some embodiments of the present invention, the bottom plate 300 further includes a plurality of supporting holes 350 and a plurality of stoppers 360. The plurality of supporting holes 350 are arranged on both sides of the first groove 310 in the width direction and penetrate the bottom plate 300 in the thickness direction of the bottom plate 300, and are arranged at intervals along the length direction of the first groove 310. The supporting holes 350 are in the shape of strips and extend from the first groove 310 to the second groove 330, and the supporting holes 350 are connected to the first groove 310. The plurality of stoppers 360 correspond to the plurality of supporting holes 350 one by one, and the stoppers 360 are inserted into the supporting holes 350 from the lower surface of the bottom plate 300 to close the bottom of the supporting holes 350. The top of the stoppers 360 is higher than the bottom of the first groove 310, and the height of the stoppers 360 corresponding to the middle area of ​​the installation area of ​​the top plate 100 is lower than the height of the stoppers 360 corresponding to the edge area of ​​the installation area of ​​the top plate 100.

[0051] like Figure 4 and Figure 5As shown, by cooperating with the strip-shaped branch hole 350 and the block 360, a branch groove (the bottom of the branch groove is the top of the block 360) for accommodating the coolant can be formed, so that the distribution of the coolant can be adjusted. That is, if the height of the block 360 is high, the depth of the branch groove is shallow, the amount of coolant accommodated is less, and there is less heat exchange area, and the heat dissipation effect is relatively poor. If the height of the block 360 is low, the depth of the branch groove is deep, the amount of coolant accommodated is more, and there is more heat exchange area, and the heat dissipation effect is relatively good. The distribution of the coolant can be adjusted by inserting blocks 360 of different heights into the branch hole 350. The height of the block 360 in the middle area corresponding to the installation area of ​​the top plate 100 is lower than the height of the block 360 in the edge area corresponding to the installation area of ​​the top plate 100, so that the middle area corresponding to the length direction of the object to be cooled has more cooling liquid and more heat dissipation, and the edge area corresponding to the length direction of the object to be cooled has less cooling liquid and relatively less heat dissipation, thereby achieving more heat dissipation in the middle area of ​​the length direction of the object to be cooled and less heat dissipation at the edge of the length direction of the object to be cooled, thereby improving the heat dissipation efficiency.

[0052] Furthermore, the design of the support hole 350 and the stopper 360 can increase the heat exchange area and improve the heat dissipation efficiency.

[0053] Furthermore, the installation area includes multiple installation areas, and the multiple installation areas are spaced apart along the length direction of the top plate 100. The first strip holes 221 and the second strip holes 211 each include multiple groups, and the multiple groups of first strip holes 221 and the multiple groups of second strip holes 211 each correspond one-to-one to the multiple installation areas.

[0054] like Figure 2 As shown, there are three installation areas, so that the heat dissipation object to be cooled can be dissipated, and the utilization rate of the liquid cooling plate with uniform temperature control can be improved. It should be noted that the above is only an optional example, and the number of installation areas is not limited here.

[0055] The coolant can pass through the three groups of first strip holes 221 of the first partition plate 220 and the second strip holes 211 of the second partition plate 210 and contact the top plate 100 , thereby evenly dissipating the heat of the three objects to be cooled.

[0056] Furthermore, the block 360 includes multiple groups, and the multiple groups of block 360 correspond one-to-one to the multiple installation areas. The height of the multiple block 360 in the group corresponding to the upstream installation area is higher than the height of the multiple block 360 in the group corresponding to the downstream installation area.

[0057] The upstream and downstream are relative to the flow direction of the coolant. Figure 4 As shown, the area close to the liquid inlet hole 320 is the upstream of the first groove 310 , and the area away from the liquid inlet hole 320 is the downstream of the first groove 310 .

[0058] like Figure 4 As shown, the block 360 includes three groups. The group of blocks 360 closest to the liquid inlet 320 has the highest height and contains the least coolant, the middle group of blocks 360 has a medium height, and the group of blocks 360 farthest from the liquid inlet 320 has the lowest height and contains the most coolant, so that the upstream coolant is relatively less distributed, and the downstream coolant is relatively more distributed. After the coolant passes through different objects to be cooled, the temperature gradually rises and the cooling effect decreases. By adjusting the distribution of the coolant through the branch holes 350 and the blocks 360, the coolant can cool each object to be cooled relatively evenly. This avoids the situation in which the cooling effect on the downstream objects to be cooled gradually decreases due to the gradual increase in the temperature of the coolant in conventional liquid cooling plates.

[0059] Through the design of the support hole 350 and the stopper 360, it is convenient to accurately adjust the temperature of each object to be cooled. By inserting the stopper 360 at different heights, the temperature of the object to be cooled is measured, so that the temperature of each object to be cooled is more uniform.

[0060] Furthermore, the heights of the plurality of stoppers 360 are set according to the difference between the actual flow resistance of the coolant and the predetermined flow resistance.

[0061] like Figure 4 As shown, the flow resistance can be changed by adjusting the overall height of the stopper 360. In order to achieve the predetermined flow resistance required by the customer, the stopper 360 of different heights is inserted into the branch hole 350 through testing to achieve precise adjustment of the flow resistance.

[0062] In some embodiments of the present invention, the second groove 330 is further disposed along an edge of the first side in the width direction of the bottom plate 300 to form a “U” shape.

[0063] like Figure 3 As shown, the second groove 330 forms a "U" shape with its opening facing the width direction. The "U"-shaped second groove 330 can reduce the number of liquid outlet holes 340, and one liquid outlet hole 340 can meet the demand.

[0064] Further, the liquid inlet hole 320 is disposed adjacent to the second side edge, the second side edge is disposed opposite to the first side edge, and the liquid outlet hole 340 is disposed adjacent to the first side edge.

[0065] like Figure 3 As shown, the liquid inlet hole 320 and the liquid outlet hole 340 are respectively arranged at the two ends of the length direction of the base plate 300, and the distance between them is relatively far, which can increase the length of the coolant flow path, avoid the coolant flowing out directly without fully dissipating the heat of the object to be cooled, and improve the cooling efficiency of the liquid cooling plate.

[0066] In some embodiments of the present invention, the first angle formed by the first strip hole 221 and the first direction of the length direction of the first partition 220 is 30 to 60 degrees, and the second angle formed by the second strip hole 211 and the first direction of the length direction of the second partition 210 is 150 to 120 degrees, and the first angle and the second angle are complementary to each other.

[0067] like Figures 6 to 8 As shown, the first strip-shaped holes 221 are oblique to the length direction of the first partition 220, and the second strip-shaped holes are oblique to the length direction of the second partition 210, both of which can enable part of the first strip-shaped holes 221 and the second strip-shaped holes 211 to directly connect to the first groove 310 and the second groove 330, so that part of the coolant flows directly between the first groove 310 and the second groove 330 through part of the first strip-shaped holes 221 and the second strip-shaped holes 211, thereby improving the cooling efficiency.

[0068] The first strip-shaped holes 221 and the second strip-shaped holes 211 at this angle can make the distribution of the cooling liquid more uniform.

[0069] In some embodiments of the present invention, the first separator 220 includes a plurality of first sheet plates 202 stacked to form the first separator 220 , and the second separator 210 includes a plurality of second sheet plates 201 stacked to form the second separator 210 .

[0070] like Figure 2 As shown, the first partition 220 is formed by stacking three first sheet plates 202, and the second partition 210 is formed by stacking three second sheet plates 201. The thickness of the first partition 220 and the second partition 210 can be easily adjusted by the first sheet plates 202 and the second sheet plates 201, and the thinner first sheet plates 202 and the second sheet plates 201 can be formed by stamping, which is relatively simple to manufacture.

[0071] In some embodiments of the present invention, the uniform temperature controlled liquid cooling plate further comprises a liquid inlet joint and a liquid outlet joint. The liquid inlet joint is connected to the liquid inlet hole 320. The liquid outlet joint is connected to the liquid outlet hole 340.

[0072] like Figure 1 and Figure 2 As shown, the liquid inlet joint is connected to the liquid inlet hole 320, and the liquid outlet joint is connected to the liquid outlet hole 340. Thus, the liquid inlet hole 320 can be conveniently connected to the liquid inlet pipe through the liquid inlet joint, and the liquid outlet hole 340 can be conveniently connected to the liquid outlet pipe through the liquid outlet joint.

[0073] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A liquid cooling plate with uniform temperature control, characterized in that: The uniformly temperature-controlled liquid cooling plate comprises: A bottom plate, wherein a first groove and a second groove are formed on the upper surface of the bottom plate, the first groove is arranged in the middle of the bottom plate in the width direction and extends along the length direction of the bottom plate, a liquid inlet hole is formed in the first groove, the second groove is arranged at least along the edges of two opposite sides in the length direction of the bottom plate, a liquid outlet hole is formed in the second groove, the upper surface of the bottom plate is formed into a plane, and the first groove and the second groove can accommodate cooling liquid; A first partition, wherein the lower surface of the first partition is attached to the upper surface of the bottom plate, a plurality of first strip-shaped holes are formed in the middle of the first partition, which are spaced apart and parallel to each other, the first strip-shaped holes intersect the first groove and the second groove, the upper surface and the lower surface of the first partition are both formed into planes, and the bottom plate covers all the first strip-shaped holes; A second separator, wherein the lower surface of the second separator is attached to the upper surface of the first separator, a plurality of second strip-shaped holes which are spaced apart and parallel to each other are formed in the middle of the second separator, the first strip-shaped holes and the second strip-shaped holes intersect, and the upper surface and the lower surface of the second separator are both formed into planes; A top plate, the lower surface of which is attached to the upper surface of the second partition plate and covers all of the second strip-shaped holes, and the upper surface of the top plate is formed with a mounting area for arranging objects to be cooled.

2. The uniformly temperature-controlled liquid cooling plate according to claim 1, characterized in that: The base plate also includes: A plurality of branch holes, the plurality of branch holes are arranged on both sides of the first groove in the width direction and penetrate the bottom plate in the thickness direction of the bottom plate, and are arranged at intervals along the length direction of the first groove, the branch holes are in the shape of strips and extend from the first groove to the second groove, and the branch holes are connected to the first groove; A plurality of blocks, each of the blocks corresponds to the plurality of branch holes one by one, the blocks are inserted into the branch holes from the lower surface of the bottom plate to close the bottom of the branch holes, the top of the blocks is higher than the bottom of the first groove, and the height of the blocks in the middle area corresponding to the mounting area of ​​the top plate is lower than the height of the blocks in the edge area corresponding to the mounting area of ​​the top plate.

3. The uniformly temperature-controlled liquid cooling plate according to claim 2, characterized in that: The installation areas include multiple installation areas, which are spaced apart along the length direction of the top plate. The first strip holes and the second strip holes each include multiple groups, and the multiple groups of the first strip holes and the multiple groups of the second strip holes each correspond one-to-one to the multiple installation areas.

4. The uniformly temperature-controlled liquid cooling plate according to claim 2, characterized in that: The blocks include multiple groups, and the blocks correspond one-to-one to the installation areas. The height of the blocks in the group corresponding to the installation area located upstream is higher than the height of the blocks in the group corresponding to the installation area located downstream.

5. The uniformly temperature-controlled liquid cooling plate according to claim 4, characterized in that: The heights of the plurality of stoppers are set according to a difference between an actual flow resistance of the coolant and a predetermined flow resistance.

6. The uniformly temperature controlled liquid cooling plate according to claim 1, characterized in that: The second groove is also arranged along the edge of the first side in the width direction of the bottom plate to form a "U" shape.

7. The uniformly temperature-controlled liquid cooling plate according to claim 6, characterized in that: The liquid inlet hole is disposed adjacent to the second side edge, the second side edge is disposed opposite to the first side edge, and the liquid outlet hole is disposed adjacent to the first side edge.

8. The uniformly temperature controlled liquid cooling plate according to claim 1, characterized in that: The first angle formed by the first strip hole and the first direction of the length direction of the first partition is 30 to 60 degrees, the second angle formed by the second strip hole and the first direction of the length direction of the second partition is 150 to 120 degrees, and the first angle and the second angle are complementary angles.

9. The uniformly temperature-controlled liquid cooling plate according to claim 1, characterized in that: The first separator includes a plurality of first sheet-like plates, which are stacked to form the first separator, and the second separator includes a plurality of second sheet-like plates, which are stacked to form the second separator.

10. The uniformly temperature controlled liquid cooling plate according to claim 1, characterized in that: The uniformly temperature-controlled liquid cooling plate further comprises: A liquid inlet connector, the liquid inlet connector being connected to the liquid inlet hole; A liquid outlet joint, wherein the liquid outlet joint is connected to the liquid outlet hole.

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