Liquid cooling plate and liquid cooling system
By setting up inlet and outlet chambers in the liquid cooling plate and using a sandwich flow channel plate to separate the coolant flow channels, the problem of uneven heat dissipation caused by temperature difference in the liquid cooling plate is solved, and a more uniform heat dissipation effect is achieved.
Patent Information
- Application Number
- CN202422839349.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-11-20
AI Technical Summary
Existing liquid cooling plates suffer from temperature differences, resulting in uneven heat dissipation, especially in the downstream areas where heat-generating devices such as chips cannot be effectively cooled.
A liquid cooling plate structure is designed, including a first plate, a second plate, and a sandwich flow channel plate. By setting an inlet chamber and an outlet chamber in the liquid cooling chamber and separating them with the sandwich flow channel plate, the coolant enters the inlet chamber from the inlet and then flows to both sides before entering the outlet chamber to be discharged, thereby reducing the temperature gradient.
It effectively reduces the temperature gradient of the liquid cooling plate and improves the heat dissipation effect on heat-generating devices, especially the temperature uniformity of the core area and surface of the chip.
Smart Images
Figure CN223584552U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to liquid cooling equipment technical field, especially liquid cooling plate and liquid cooling system. BACKGROUND
[0002] Liquid cooling plate is a kind of cooling device using cooling liquid to flow through its inner cavity to take away the heat of heating electronic device, for example, can be applied to the cooling of server.
[0003] The water inlet and water outlet of the existing liquid cooling plate are located at two ends respectively, that is, the cooling liquid flows from one end to the other end inside the liquid cooling plate, and the area flowed through by the cooling liquid after is a little higher in temperature due to the warming of the front area, so that there is a temperature difference between the front and back of the liquid cooling plate, and the overall temperature is uneven. For example, when cooling the chip, the temperature of the whole surface of the chip is not consistent due to the different DIE distribution of different chips, and if the liquid cooling plate with the above structure is used, the chip position in the area flowed through by the cooling liquid after cannot be effectively cooled.
[0004] Therefore, how to reduce the temperature difference of the liquid cooling plate to improve the cooling effect of the liquid cooling plate is a technical problem to be solved by the person skilled in the art at present. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a kind of liquid cooling plate and liquid cooling system, which can effectively improve its cooling effect.
[0006] To achieve the above object, the utility model provides the following technical scheme:
[0007] A kind of liquid cooling plate, comprising:
[0008] First plate piece;
[0009] Second plate piece, the second plate piece cover is arranged on the first plate piece to form liquid cooling chamber, and the middle part of the second plate piece is provided with liquid inlet and liquid outlet;
[0010] Interlayer flow channel plate, the interlayer flow channel plate is arranged in the liquid cooling chamber to separate the liquid cooling chamber into liquid inlet chamber and liquid outlet chamber, the liquid outlet chamber is located above the liquid inlet chamber and is communicated with each other, the liquid inlet is communicated with the liquid inlet chamber, and the liquid outlet is communicated with the liquid outlet chamber, cooling liquid that the liquid inlet flows into enters the liquid inlet chamber, is first divided into two sides of the liquid inlet chamber and then enters the liquid outlet chamber, and is discharged through the liquid outlet.
[0011] In some embodiments, the bottom of the sandwich flow channel plate is provided with first and second spaced apart ribs, both ends of the first and second ribs are provided with a preset gap with the inner side wall of the liquid inlet chamber, the lower surface of the first and second ribs is in contact with the upper surface of the first plate to divide the liquid inlet chamber into a middle cavity and first and second side cavities on both sides of the middle cavity, the liquid inlet is in communication with the middle cavity, the middle cavity is in communication with the first and second side cavities through the preset gaps on both sides, and the first and second side cavities are in communication with the liquid outlet chamber.
[0012] In some embodiments, one side of the upper part of the sandwich flow channel plate is provided with a rib, the upper surface of the rib is connected to the lower surface of the second plate, the liquid inlet and the liquid outlet are respectively located on both sides of the rib, the bottom of the second plate is provided with a flow guide part, the flow guide part is provided with first and second spaced apart protrusions on the side of the sandwich flow channel plate, the ends of the first and second protrusions are sealingly connected to the rib to form a liquid inlet passage on the side of the flow guide part, the liquid inlet passage is in communication with the liquid inlet and the middle cavity; a first liquid outlet passage is formed on the side of the flow guide part, the first liquid outlet passage is in communication with the first side cavity and the liquid outlet chamber; a second liquid outlet passage is formed on the side of the flow guide part, the second liquid outlet passage is in communication with the second side cavity and the liquid outlet chamber.
[0013] In some embodiments, the upper part of the sandwich flow channel plate is provided with a U-shaped strip, the upper surface of the U-shaped strip is connected to the lower surface of the second plate, the U-shaped strip and the rib form the liquid outlet chamber, a first gap is formed between the first end of the rib and one side of the U-shaped strip, a second gap is formed between the second end of the rib and the other side of the U-shaped strip, the first liquid outlet passage is in communication with the liquid outlet chamber through the first gap, and the second liquid outlet passage is in communication with the liquid outlet chamber through the second gap.
[0014] In some embodiments, the flow guide part is a flow guide block integrally formed on one side of the lower surface of the second plate member, the bottom of the flow guide block is provided with first baffles and second baffles distributed at intervals, the first baffles are the same as the extension direction of the first rib plates, one end of the first baffles is in contact with one end of the first rib plates, and the other end of the first baffles is provided with a preset gap with the inner side wall of the liquid inlet chamber; the second baffles are the same as the extension direction of the second rib plates, one end of the second baffles is in contact with one end of the second rib plates, and the other end of the second baffles is provided with a preset gap with the inner side wall of the liquid inlet chamber.
[0015] In some embodiments, the first protrusions are the same as the extension direction of the first baffles and are integrally formed on the flow guide block, and the second protrusions are the same as the extension direction of the second baffles and are integrally formed on the flow guide block.
[0016] In some embodiments, the upper surface of the first plate member is provided with grooves distributed in the circumferential direction, and the bottom of the second plate member is sealingly connected in the grooves.
[0017] In some embodiments, the upper surface of the first plate member is provided with a plurality of heat dissipation fins distributed at intervals, the heat dissipation fins are located in the liquid cooling chamber, and adjacent heat dissipation fins form a channel for the flow of cooling liquid.
[0018] In some embodiments, the heat dissipation fins are spading teeth integrally formed on the upper surface of the first plate member.
[0019] The utility model also provides a liquid cooling system, including any one of above-mentioned liquid cooling plate.
[0020] Compared with the prior art, the above technical scheme has at least the following advantages:
[0021] The utility model provides a liquid cooling plate and liquid cooling system, include: first plate member, second plate member and interlayer flow channel board, wherein second plate member is connected on first plate member, be equipped with liquid cooling chamber between first plate member and second plate member, second plate member is equipped with liquid inlet and liquid outlet, interlayer flow channel board is located in liquid cooling chamber, to divide liquid cooling chamber into liquid inlet chamber and liquid outlet chamber, liquid outlet chamber is located in the upper of liquid inlet chamber, and the side of liquid inlet chamber is equipped with liquid outlet flow channel, and liquid outlet flow channel is interconnected with liquid outlet chamber, and liquid inlet is communicated with liquid inlet chamber, and liquid outlet is communicated with liquid outlet chamber. In the process of using, cooling liquid flows into liquid inlet chamber from liquid inlet, then first to the liquid inlet chamber both sides flow, then enters liquid outlet chamber, and then is discharged through liquid outlet. Relative to the prior art that cooling liquid enters from one end of liquid cooling plate and flows out from the other end of liquid cooling plate, can effectively reduce temperature gradient, and then improve the heat dissipation effect of liquid cooling plate to heat generating device. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.
[0023] Figure 1 An exploded view of a liquid cooling plate provided by a specific embodiment of the present application;
[0024] Figure 2 A schematic view of a horizontal cross-section and top view structure of a second plate member and a sandwich flow channel plate of a liquid cooling plate provided by a specific embodiment of the present application;
[0025] Figure 3 A schematic view of a horizontal cross-section and top view structure of a second plate member of a liquid cooling plate provided by a specific embodiment of the present application;
[0026] Figure 4 A schematic view of an exploded structure of a vertical cross-section and side view of a liquid cooling plate provided by a specific embodiment of the present application;
[0027] Figure 5 A schematic view of an assembled structure of a vertical cross-section and side view of a liquid cooling plate provided by a specific embodiment of the present application;
[0028] Figure 6 A schematic view of a vertical cross-section and front view structure of a liquid cooling plate provided by a specific embodiment of the present application;
[0029] Figure 7 A schematic view of a structure of a second plate member of a liquid cooling plate provided by a specific embodiment of the present application.
[0030] The reference signs are as follows:
[0031] 10-first plate member, 11-chip tooth, 12-groove;
[0032] 20-second plate member, 21-liquid inlet, 22-liquid outlet, 23-liquid inlet chamber, 231-middle cavity, 232-first edge cavity, 233-second edge cavity, 234-liquid outlet flow channel, 24-liquid outlet chamber, 241-first liquid outlet passage, 242-second liquid outlet passage, 25-flow guide part, 251-first protrusion, 252-second protrusion, 253-first baffle, 254-second baffle;
[0033] 30-sandwich flow channel plate, 31-first rib plate, 32-second rib plate, 33-rib, 34-U-shaped strip;
[0034] 40 - liquid inlet interface;
[0035] 50 - liquid outlet interface. DETAILED DESCRIPTION
[0036] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without any creative work fall within the scope of protection of the present application.
[0037] Please refer to Figures 1-7 The liquid cooling plate provided in the embodiments of the present application comprises a first plate 10, a second plate 20 and a sandwich flow channel plate 30. The second plate 20 is connected to the first plate 10. A liquid cooling chamber is arranged between the first plate 10 and the second plate 20. For example, a bottom-opened cavity can be arranged in the second plate 20. The second plate 20 is arranged on the first plate 10, and then a sealed liquid cooling chamber is formed by welding. The second plate 20 is provided with a liquid inlet 21 and a liquid outlet 22. The liquid inlet interface 40 can be sealingly connected to the liquid inlet 21 in a threaded and sealing ring manner. The liquid outlet interface 50 can also be sealingly connected to the liquid outlet 22 in a threaded and sealing ring manner. The sandwich flow channel plate 30 is arranged in the liquid cooling chamber to divide the liquid cooling chamber into a liquid inlet chamber 23 and a liquid outlet chamber 24. The liquid outlet chamber 24 is located above the liquid inlet chamber 23. The side of the liquid inlet chamber 23 is provided with a liquid outlet flow channel 234. The liquid outlet flow channel 234 is in communication with the liquid outlet chamber 24. The liquid inlet 21 is in communication with the middle part of the liquid inlet chamber 23. The middle part of the liquid inlet chamber 23 can be the middle part of its geometric center or the nearby area close to the center. The liquid outlet 22 is in communication with the liquid outlet chamber 24. The liquid cooling plate can be applied to a heat source module, such as a chip, in a server. During use, the cooling liquid flows into the liquid inlet chamber 23 from the liquid inlet 21, and then is first divided into two sides of the liquid inlet chamber 23, and then enters the liquid outlet chamber 24 through the liquid outlet flow channel 234, and then is discharged through the liquid outlet 22. Compared with the prior art scheme in which the cooling liquid enters one end of the liquid cooling plate and flows out from the other end of the liquid cooling plate, the temperature gradient can be effectively reduced, and the heat dissipation effect of the liquid cooling plate on the heat generating device is improved. The cooling liquid can be water. Since the cooling liquid enters the middle part of the liquid inlet chamber 23, the temperature at the core position in the middle part of the heat source module can be preferentially reduced, and the surface temperature difference of the heat source module can be reduced, so that the cooling effect of the heat source module is improved.
[0038] In some embodiments, as Figure 1 , Figure 3 and Figure 6As shown, the bottom of the sandwich flow channel plate 30 is provided with first and second rib plates 31 and 32 which can be integrally formed on the sandwich flow channel plate 30, the two ends of the first and second rib plates 31 and 32 are provided with a predetermined gap with the inner side wall of the liquid inlet chamber 23, the lower surface of the first and second rib plates 31 and 32 is in contact with the upper surface of the first plate 10, so as to separate the liquid inlet chamber 23 into a middle cavity 231 and first and second side cavities 232 and 233 located on both sides of the middle cavity 231, the liquid inlet 21 is communicated with the middle cavity 231, the middle cavity 231 is communicated with the first and second side cavities 232 and 233 through the predetermined gap on both sides, and the first and second side cavities 232 and 233 are communicated with the liquid outlet chamber 24. When the cooling liquid enters the middle cavity 231, the cooling liquid is divided into two parts, and then enters the first and second side cavities 232 and 233 through the gap on both sides, and then flows back to the liquid outlet chamber 24, and finally is discharged through the liquid outlet 22. The two paths of the cooling liquid after entering the liquid cooling chamber are in parallel relationship, and the flow resistance is lower than that of the existing cooling liquid series connection mode.
[0039] In some embodiments, as shown in Figure 1 and Figure 2 As shown, one side of the upper part of the sandwich flow channel plate 30 is provided with a rib 33 which can be integrally formed on the upper part of the sandwich flow channel plate 30, the upper surface of the rib 33 is connected to the lower surface of the second plate 20, for example, the rib 33 can be fixed to the lower surface of the second plate 20 by welding, wherein the liquid inlet 21 and the liquid outlet 22 are located on both sides of the rib 33, that is, the rib 33 plays a role in separating the liquid inlet 21 and the liquid outlet 22, and the bottom of the second plate 20 is provided with a flow guide part 25 which is provided with first and second protrusions 251 and 252 which are spaced apart on one side of the sandwich flow channel plate 30, as shown in Figure 2 The ends of the first and second protrusions 251 and 252 are sealingly connected to the rib 33, so that the side of the flow guide part 25 facing the rib 33 is surrounded by the first and second protrusions 251 and 252 and the rib 33 to form a liquid inlet passage, and the liquid inlet passage is communicated with the liquid inlet 21 and the middle cavity 231 respectively; the side of the flow guide part 25 facing the sandwich flow channel plate 30 is surrounded by the first protrusion 251, the inner side surface of the second plate 20 and the side of the sandwich flow channel plate 30 facing the flow guide part 25 to form a first liquid outlet passage 241, and the first liquid outlet passage 241 is communicated with the first side cavity 232 and the liquid outlet chamber 24; the side of the flow guide part 25 facing the sandwich flow channel plate 30 is surrounded by the second protrusion 252, the inner side surface of the second plate 20 and the side of the sandwich flow channel plate 30 facing the flow guide part 25 to form a second liquid outlet passage 242, and the second liquid outlet passage 242 is communicated with the second side cavity 233 and the liquid outlet chamber 24. As shown in Figure 4 and Figure 6As shown, the solid arrow is the direction of the cooling liquid inflow, and the dashed arrow is the direction of the cooling liquid outflow. The cooling liquid enters the middle cavity 231 through the inlet port 21 after entering the inlet channel, and then the cooling liquid is divided into two paths in the middle cavity 231. One path flows from one side of the middle cavity 231 to the first edge cavity 232 and the second edge cavity 233, respectively, and then enters the outlet chamber 24 through the first outlet channel 241. The other path flows from the other side of the middle cavity 231 to the first edge cavity 232 and the second edge cavity 233, respectively, and then enters the outlet chamber 24 through the second outlet channel 242.
[0040] In some embodiments, as shown in Figure 1 and Figure 2 The upper part of the interlayer flow channel plate 30 is provided with a U-shaped strip 34, which can be integrally formed on the upper surface of the interlayer flow channel plate 30. The upper surface of the U-shaped strip 34 is connected to the lower surface of the second plate member 20. For example, the U-shaped strip 34 can be fixed to the lower surface of the second plate member 20 by welding. The U-shaped strip 34 and the rib strip 33 form the outlet chamber 24. The U-shaped strip 34 and the rib strip 33 mainly guide the cooling liquid. The first end of the rib strip 33 and one side of the U-shaped strip 34 are provided with a first gap. The second end of the rib strip 33 and the other side of the U-shaped strip 34 are provided with a second gap. The first outlet channel 241 communicates with the outlet chamber 24 through the first gap. The second outlet channel 242 communicates with the outlet chamber 24 through the second gap. That is, the cooling liquid enters the outlet chamber 24 from both ends of the side of the interlayer flow channel plate 30 facing the flow guide part 25, as shown in Figure 2 The cross-sectional line between the U-shaped strip 34 and the rib strip 33 shown in the figure is the schematic structure of the cooling liquid outflow channel. The cross-sectional line between the rib strip 33, the first protrusion 251, the second protrusion 252, and the end surface of the flow guide part 25 is the schematic structure of the cooling liquid inflow channel.
[0041] In some embodiments, the flow guide part 25 is a flow guide block integrally formed on one side of the lower surface of the second plate member 20, as shown in Figure 6As shown, the bottom of the flow guide block is provided with first baffles 253 and second baffles 254 distributed at intervals, the first baffles 253 are the same as the extension direction of the first rib plates 31, and one end of the first baffles 253 is in contact with one end of the first rib plates 31, and the other end of the first baffles 253 leaves a preset gap with the inner side wall of the liquid inlet chamber 23, wherein the first baffles 253 and the first rib plates 31 form the first partition; the second baffles 254 are the same as the extension direction of the second rib plates 32, and one end of the second baffles 254 is in contact with one end of the second rib plates 32, and the other end of the second baffles 254 leaves a preset gap with the inner side wall of the liquid inlet chamber 23, wherein the second baffles 254 and the second rib plates 32 form the second partition, and the first partition and the second partition can separate the liquid inlet chamber 23 into a middle cavity 231, a first side cavity 232 and a second side cavity 233. Wherein the first protrusions 251 are the same as the extension direction of the first baffles 253 and are integrally formed on the flow guide block, and the second protrusions 252 are the same as the extension direction of the second baffles 254 and are integrally formed on the flow guide block, that is, the first protrusions 251, the first baffles 253 and the first rib plates 31 are in the same vertical plane, and the second protrusions 252, the second baffles 254 and the second rib plates 32 are in the same vertical plane. After the cooling liquid enters from the liquid inlet 21, under the restriction of the ribs 33, the first protrusions 251 and the second protrusions 252, the cooling liquid only enters the middle cavity 231, and then under the restriction of the first partition and the second partition, the cooling liquid is divided into two sides in the middle cavity 231, and then enters the first side cavity 232 and the second side cavity 233 respectively, and then the cooling liquid flows upward from the first liquid outlet channel 241 and the second liquid outlet channel 242 to the liquid outlet chamber 24, and then after converging in the liquid outlet chamber 24, finally flows out of the liquid cooling plate through the liquid outlet 22.
[0042] In some embodiments, in order to facilitate the connection of the second plate member 20 and the first plate member 10, as shown in Figure 1 and Figure 4 As shown, the upper surface of the first plate member 10 is provided with a groove 12 distributed in the circumferential direction, and the bottom of the second plate member 20 is sealingly connected in the groove 12. For example, when the cross section of the bottom of the second plate member 20 is a rectangular frame structure, a rectangular groove 12 is arranged on the upper surface of the first plate member 10. When connecting, the bottom of the second plate member 20 is buckled on the first plate member 10, and finally fixed by welding. The groove 12 can limit the second plate member 20.
[0043] In some embodiments, as shown in Figure 1As shown, the upper surface of the first plate 10 is provided with a plurality of spaced apart heat dissipation fins, the heat dissipation fins are located in the liquid cooling chamber, that is, the middle cavity 231, the first edge cavity 232 and the second edge cavity 233 are respectively provided with heat dissipation fins, and adjacent heat dissipation fins constitute a channel for the flow of cooling liquid. Among them, the heat dissipation fin is a spade tooth 11 integrally formed on the upper surface of the first plate 10, the shape of the spade tooth 11 can be selected as a wave line or a radial line according to actual needs, under the premise of ensuring the smooth flow of the cooling liquid, the smaller the tooth thickness and the spacing of the spade tooth 11, the better the heat dissipation effect, wherein before processing, the depth of the flow channel in different regions can be adjusted according to the chip DIE distribution position to control the amount and flow rate of the cooling liquid in different regions, and the spacing and thickness of the spade tooth 11 can also be adjusted for control to flexibly cope with the inconsistent power consumption of different regions, thereby achieving better heat dissipation effect. In addition, in addition to controlling the cooling liquid flow through the spade tooth 11, the depth of the flow channel at the bottom of the second plate 20 can also be adjusted, for example, the depth of the gap between the flow guide plate and the inner side wall of the cooling chamber. In addition, the spacing between the interlayer flow channel plate 30 and the flow guide part 25, the spacing of the first protrusion 251 and the second protrusion 252, and the hole diameter of the liquid inlet 21 and the liquid outlet 22 can be adjusted according to the requirements of the heat source module in advance.
[0044] The utility model embodiment further provides a liquid cooling system, including any one embodiment provided by the liquid cooling plate, still include with liquid cooling pipeline that liquid cooling board is connected, wherein the beneficial effect about liquid cooling system, reference liquid cooling board in above -mentioned embodiment can, this place will not repeat here.
[0045] It should be noted that in the present specification, relational terms such as first and second are used only to distinguish one entity from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities.
[0046] The embodiments in the present specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be referred to each other.
[0047] The liquid cooling plate and liquid cooling system provided by the utility model are described in detail above. The principles and implementation modes of the utility model are described by applying specific examples in this paper. The above embodiment is only used to help understand the core idea of the utility model. It should be pointed out that for ordinary skilled persons in the technical field, without departing from the principles of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the utility model.
Claims
1. A liquid-cooled plate, characterized in that, include: First plate (10); The second plate (20) is connected to the first plate (10). A liquid cooling chamber is provided between the first plate (10) and the second plate (20). The second plate (20) is provided with a liquid inlet (21) and a liquid outlet (22). A sandwich flow channel plate (30) is provided in the liquid cooling chamber to divide the liquid cooling chamber into an inlet chamber (23) and an outlet chamber (24). The outlet chamber (24) is located above the inlet chamber (23). An outlet flow channel (234) is provided on the side of the inlet chamber (23). The outlet flow channel (234) is connected to the outlet chamber (24). The inlet port (21) is connected to the middle of the inlet chamber (23). The outlet port (22) is connected to the outlet chamber (24).
2. The liquid cooling plate according to claim 1, characterized in that, The bottom of the interlayer flow channel plate (30) is provided with a first rib (31) and a second rib (32) spaced apart. Both ends of the first rib (31) and the second rib (32) are left with a preset gap with the inner wall of the liquid inlet chamber (23). The lower surface of the first rib (31) and the second rib (32) is in contact with the upper surface of the first plate (10) to divide the liquid inlet chamber (23) into a central cavity (231) and a first side cavity (232) and a second side cavity (233) located on both sides of the central cavity (231). The liquid inlet (21) is connected to the central cavity (231). The central cavity (231) is connected to the first side cavity (232) and the second side cavity (233) through the preset gaps on both sides. The first side cavity (232) and the second side cavity (233) are connected to the liquid outlet chamber (24).
3. The liquid cooling plate according to claim 2, characterized in that, The upper side of the sandwich flow channel plate (30) is provided with a rib (33). The upper surface of the rib (33) is connected to the lower surface of the second plate (20). The liquid inlet (21) and the liquid outlet (22) are located on both sides of the rib (33). The bottom of the second plate (20) is provided with a flow guide (25). The flow guide (25) facing the sandwich flow channel plate (30) is provided with a first protrusion (251) and a second protrusion (252) spaced apart. The ends of the first protrusion (251) and the second protrusion (252) are sealed to the rib (33) so that the side of the flow guide (25) facing the rib (33), together with the first protrusion (251), the second protrusion (252) and the rib (33), form a liquid inlet channel. The liquid inlet channel is connected to the liquid inlet (21) and the liquid outlet (22) respectively. 21) and the middle cavity (231) are connected; the flow guide (25) is arranged to form a first liquid outlet channel (241) with the side facing the interlayer flow channel plate (30), the inner side of the first protrusion (251) and the second plate (20) and the side of the interlayer flow channel plate (30) facing the flow guide (25), and the first liquid outlet channel (241) is connected to the first side cavity (232) and the liquid outlet chamber (24); the flow guide (25) is arranged to form a second liquid outlet channel (242) with the side facing the interlayer flow channel plate (30), the inner side of the second protrusion (252) and the second plate (20) and the side of the interlayer flow channel plate (30) facing the flow guide (25), and the second liquid outlet channel (242) is connected to the second side cavity (233) and the liquid outlet chamber (24).
4. The liquid cooling plate according to claim 3, characterized in that, The upper part of the sandwich flow channel plate (30) is provided with a U-shaped strip (34). The upper surface of the U-shaped strip (34) is connected to the lower surface of the second plate (20). The U-shaped strip (34) and the rib (33) form the liquid outlet chamber (24). A first gap is provided between the first end of the rib (33) and one side of the U-shaped strip (34). A second gap is provided between the second end of the rib (33) and the other side of the U-shaped strip (34). The first liquid outlet channel (241) communicates with the liquid outlet chamber (24) through the first gap. The second liquid outlet channel (242) communicates with the liquid outlet chamber (24) through the second gap.
5. The liquid cooling plate according to claim 4, characterized in that, The flow guide (25) is a flow guide block integrally formed on one side of the lower surface of the second plate (20). The bottom of the flow guide block is provided with a first baffle (253) and a second baffle (254) spaced apart. The first baffle (253) extends in the same direction as the first rib (31), and one end of the first baffle (253) contacts one end of the first rib (31). The other end of the first baffle (253) leaves a preset gap with the inner wall of the liquid inlet chamber (23). The second baffle (254) extends in the same direction as the second rib (32), and one end of the second baffle (254) contacts one end of the second rib (32). The other end of the second baffle (254) leaves a preset gap with the inner wall of the liquid inlet chamber (23).
6. The liquid cooling plate according to claim 5, characterized in that, The first protrusion (251) extends in the same direction as the first baffle (253) and is integrally formed on the guide block. The second protrusion (252) extends in the same direction as the second baffle (254) and is integrally formed on the guide block.
7. The liquid cooling plate according to claim 1, characterized in that, The upper surface of the first plate (10) is provided with grooves (12) distributed along the circumference, and the bottom of the second plate (20) is sealed and connected to the grooves (12).
8. The liquid-cooled plate according to any one of claims 1 to 7, characterized in that, The upper surface of the first plate (10) is provided with multiple spaced heat dissipation fins, which are located in the liquid cooling chamber, and adjacent heat dissipation fins form a channel for the flow of coolant.
9. The liquid cooling plate according to claim 8, characterized in that, The heat dissipation fins are shovel teeth (11) integrally formed on the upper surface of the first plate (10).
10. A liquid cooling system, characterized in that, Includes the liquid cooling plate as described in any one of claims 1 to 9.
Citation Information
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