Cold plate and electronic device

Abstract

Embodiments of the present application provide a cold plate and electronic equipment, and relate to heat exchange technical field. The cold plate comprises: a plate body, the plate body is used for being connected with a heat generating component; a liquid inlet joint, the liquid inlet joint is connected with the plate body; a liquid outlet joint, the liquid outlet joint is connected with the plate body; a partition plate, the partition plate is arranged in the plate body, the partition plate is used for separating the space in the plate body into a liquid inlet space and a cooling space, the liquid inlet joint is communicated with the liquid inlet space, the liquid outlet joint is communicated with the cooling space, and the cooling space is used for being opposite to the heat generating component; a plurality of jet holes are arranged on the partition plate, the jet hole is communicated with the liquid inlet space and the liquid outlet space, each jet hole has a liquid outlet part, the liquid outlet part faces the cooling space, and the liquid outlet direction of the liquid outlet part is arranged in a direction away from the liquid outlet joint. The cold plate and the electronic equipment can prolong the heat exchange time of the cooling liquid and the heat generating component, thereby improving the cooling efficiency of the cold plate on the heat generating component.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchange, in particular to a cold plate and electronic equipment. BACKGROUND

[0002] The cold plate is a device for heat dissipation by circulating cooling liquid, which is usually made of high thermal conductivity materials such as aluminum alloy. The cold plate is connected with the heat generating component, and the cooling liquid flowing in the cold plate can absorb the heat generated by the heat generating component, and then take away the heat through external circulation, so as to control the temperature of the heat generating component.

[0003] In the related art, the cold plate includes a plate body and a partition plate. The cold plate is used to be connected with the heat generating component. The partition plate is arranged in the plate body and is used to divide the space in the plate body into a liquid inlet space and a cooling space. The cooling space is opposite to the heat generating component. The plate body is provided with a liquid inlet connector and a liquid outlet connector. The liquid inlet connector is in communication with the liquid inlet space, and the liquid outlet connector is in communication with the cooling space. The partition plate is provided with a plurality of jet holes. The cooling liquid flows into the liquid inlet space through the liquid inlet connector, and is sprayed into the cooling space through the jet holes. After heat exchange with the heat generating component, the cooling liquid is discharged along the liquid outlet connector, so as to realize the cooling of the heat generating component.

[0004] However, the jet holes are arranged perpendicular to the plane of the partition plate. The cooling liquid flows into the cooling space through the jet holes, that is, flows towards the position where the liquid outlet connector is located. The residence time of the cooling liquid in the cooling space is short. Part of the cooling liquid has not fully exchanged heat with the heat generating component, and flows out along the liquid outlet connector, thereby reducing the cooling efficiency of the cold plate on the heat generating component. SUMMARY

[0005] Embodiments of the present application provide a cold plate and electronic equipment to solve the technical problem that in the related art, the jet holes are arranged perpendicular to the plane of the partition plate. The cooling liquid flows into the cooling space through the jet holes, that is, flows towards the position where the liquid outlet connector is located. The residence time of the cooling liquid in the cooling space is short. Part of the cooling liquid has not fully exchanged heat with the heat generating component, and flows out along the liquid outlet connector, thereby reducing the cooling efficiency of the cold plate on the heat generating component.

[0006] In a first aspect, embodiments of the present application provide a cold plate, comprising:

[0007] a plate body, the plate body being used to be connected with a heat generating component;

[0008] a liquid inlet connector, the liquid inlet connector being connected with the plate body;

[0009] a liquid outlet connector, the liquid outlet connector being connected with the plate body;

[0010] a partition plate, the partition plate being arranged in the plate body, the partition plate being used to divide the space in the plate body into a liquid inlet space and a cooling space, the liquid inlet connector being in communication with the liquid inlet space, the liquid outlet connector being in communication with the cooling space, the cooling space being used to be opposite to the heat generating component;

[0011] The partition plate is provided with a plurality of jet holes, the jet holes communicate the liquid inlet space and the liquid outlet space, each of the jet holes has a liquid outlet part, the liquid outlet part faces the cooling space, and the liquid outlet direction of the liquid outlet part is arranged to face away from the liquid outlet connector.

[0012] In some embodiments, each of the jet holes has a liquid inlet part, the liquid inlet part faces the liquid inlet space;

[0013] In the direction parallel to the plate body, the liquid inlet part is arranged between the liquid outlet part and the liquid outlet connector.

[0014] In some embodiments, a plurality of the jet holes are arranged obliquely on the partition plate.

[0015] In some embodiments, an acute angle formed between the axis of the jet hole and the perpendicular line of the partition plate is θ, 20°≥θ≥10°.

[0016] In some embodiments, a plurality of rib plates are arranged on the partition plate, the plurality of rib plates are arranged at intervals in the liquid inlet space, and the adjacent rib plates form a flow channel groove, each of the flow channel grooves communicates with the liquid inlet space, and each of the flow channel grooves has a plurality of the jet holes.

[0017] In some embodiments, one end of the plurality of rib plates and the inner wall of the plate body form a communication space, the communication space communicates with the liquid inlet space, one end of the flow channel groove communicates with the communication space, and the other end of the flow channel groove is closed.

[0018] In some embodiments, a plurality of the flow channel grooves form a first flow channel group and at least two second flow channel groups, the first flow channel group and the second flow channel group each have at least two flow channel grooves, the first flow channel group is arranged in the middle of the liquid inlet space, the second flow channel group is arranged on both sides of the first flow channel group, and the width of the flow channel groove of the first flow channel group is less than or equal to the width of the flow channel groove of the second flow channel group.

[0019] In some embodiments, the liquid inlet connector and the liquid outlet connector are arranged on opposite sides of the plate body, respectively.

[0020] The liquid inlet connector and the liquid outlet connector are arranged oppositely, or the liquid inlet connector and the liquid outlet connector are completely staggered.

[0021] In some embodiments, a plurality of spades are arranged on the inner wall of the plate body away from the partition plate, and the plurality of spades are arranged at intervals in the cooling space.

[0022] Secondly, embodiments of this application provide an electronic device, including a device body and the aforementioned cold plate connected to the device body.

[0023] This application provides a cold plate and an electronic device. The cold plate provided in this application sets the liquid outlet direction of the jet hole to be away from the liquid outlet connector. When coolant is sprayed from the inlet space into the cooling space through the jet hole, the coolant can be sprayed along the liquid outlet in the direction away from the liquid outlet connector. After flowing a certain distance away from the liquid outlet connector, the coolant will flow towards the location of the liquid outlet connector and finally be discharged along the liquid outlet connector. This prolongs the flow path of the coolant in the cooling space and indirectly prolongs the residence time of the coolant in the cooling space. The longer residence time means that the coolant and the heat-generating components can achieve more sufficient heat exchange, so that the coolant can absorb more heat, thereby indirectly improving the cooling efficiency of the cold plate for the heat-generating components. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0025] Figure 1 A schematic diagram of the structure of the cold plate provided in this application;

[0026] Figure 2 Schematic cross-sectional structure of the cold plate provided in this application Figure 1 ;

[0027] Figure 3 Schematic cross-sectional structure of the cold plate provided in this application Figure 2 ;

[0028] Figure 4 A partial structural schematic diagram of the partition of the cold plate provided in this application;

[0029] Figure 5 Schematic cross-sectional structure of the cold plate provided in this application Figure 3 ;

[0030] Figure 6 for Figure 5 Partial structural diagram;

[0031] Figure 7 Schematic cross-sectional structure of the cold plate provided in this application Figure 4 ;

[0032] Figure 8 for Figure 7 A partial structural diagram.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100, plate body; 110, liquid inlet space; 120, cooling space;

[0035] 200, liquid inlet joint;

[0036] 300, liquid outlet joint;

[0037] 400, partition plate; 410, jet hole; 411, liquid outlet part; 412, liquid inlet part;

[0038] 500, rib plate; 510, flow channel groove; 520, communication space; 530, first flow channel group; 540, second flow channel group;

[0039] 600, closing plate;

[0040] 700, chisel tooth;

[0041] 800, heat generating component.

[0042] The specific embodiments of the present application have been shown and described in the above-described drawings, and will be described in more detail hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0043] The exemplary embodiments will be described in detail herein with reference to the accompanying drawings. In the following description, the same numbers refer to the same elements throughout the drawings, unless otherwise represented. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0044] In the related art, the cold plate includes a plate body connected with a heat generating component and a partition plate arranged in the plate body, the partition plate divides the space in the plate body into a liquid inlet space and a cooling space independent of each other, the cooling space is opposite to the heat generating component, the plate body is provided with a liquid inlet joint and a liquid outlet joint, the liquid inlet joint is communicated with the liquid inlet space, and the liquid outlet joint is directly communicated with the cooling space, the partition plate is processed with a plurality of jet holes, the cooling liquid injected into the liquid inlet space from the liquid inlet joint forms liquid flow through the jet holes under the action of pressure, sprays into the cooling space, and completes heat exchange with the heat generating component, and finally the cooling liquid absorbing heat is discharged from the circulation system through the liquid outlet joint, so that continuous heat dissipation is realized.

[0045] However, since the current jet flow holes are all opened in the direction perpendicular to the partition plate plane, the jet flow direction is directly opposite to the bottom of the plate body, which causes the cooling liquid jet flow into the cooling space to flow directly towards the liquid outlet joint after colliding with the bottom of the plate body, forming an obvious short-circuit flow path. This flow path shortens the residence time of the cooling liquid, and part of the cooling liquid is discharged without sufficient heat exchange with the heat generating components, a large amount of heat energy is not taken away, which limits the actual heat exchange efficiency of the cold plate and reduces the cooling performance of the cold plate on the heat generating components.

[0046] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes can not be described again in some examples. The embodiments of the present application will be described below with reference to the accompanying drawings.

[0047] In combination with Figure 1 , Figure 2 , Figure 3 and Figure 4 , the embodiments of the present application provide a cold plate, comprising:

[0048] a plate body 100, the plate body 100 is used to be connected with a heat generating component 800;

[0049] a liquid inlet joint 200, the liquid inlet joint 200 is connected with the plate body 100;

[0050] a liquid outlet joint 300, the liquid outlet joint 300 is connected with the plate body 100;

[0051] a partition plate 400, the partition plate 400 is arranged in the plate body 100, the partition plate 400 is used to divide the space in the plate body 100 into a liquid inlet space 110 and a cooling space 120, the liquid inlet joint 200 is communicated with the liquid inlet space 110, the liquid outlet joint 300 is communicated with the cooling space 120, and the cooling space 120 is used to be opposite to the heat generating component 800;

[0052] a plurality of jet flow holes 410 are arranged on the partition plate 400, the jet flow holes 410 are communicated between the liquid inlet space 110 and the cooling space 120, each jet flow hole 410 has a liquid outlet part 411, the liquid outlet part 411 faces the cooling space 120, and the liquid outlet direction of the liquid outlet part 411 is arranged in a direction away from the liquid outlet joint 300.

[0053] In the present application, by setting the liquid outlet direction of the liquid outlet part 411 of the jet hole 410 to be away from the liquid outlet joint 300, when the cooling liquid is sprayed into the cooling space 120 by the jet hole 410 from the liquid inlet space 110, the cooling liquid can be sprayed along the liquid outlet part 411 away from the liquid outlet joint 300, and after flowing away from the liquid outlet joint 300 for a distance, the cooling liquid flows towards the position where the liquid outlet joint 300 is located, and finally flows out along the liquid outlet joint 300, thereby prolonging the flow path of the cooling liquid in the cooling space 120, indirectly prolonging the residence time of the cooling liquid in the cooling space 120, and a longer residence time means that the cooling liquid can achieve more sufficient heat exchange with the heat generating component 800, thereby enabling the cooling liquid to absorb more heat, thereby indirectly improving the cooling efficiency of the cooling plate on the heat generating component 800.

[0054] At the same time, the cooling liquid is sprayed along the liquid outlet part 411 away from the liquid outlet joint 300, which can promote the lateral mixing and longitudinal penetration of the cooling liquid in the cooling space 120, and at the same time improve the turbulence intensity of the cooling liquid, the lateral mixing makes the cooling liquid uniformly distributed in the width direction of the plate body 100, preventing the situation that the local area cooling liquid temperature is too high or too low, thereby improving the cooling uniformity of the entire cooling plate, the longitudinal penetration makes the cooling liquid flow more deeply towards the liquid outlet joint 300, so that the cooling liquid can contact each part of the cooling plate, further improving the cooling efficiency, and the increase of turbulence intensity makes the flow of cooling liquid more complex and irregular, which helps to break the boundary layer between the cooling liquid and the wall of the plate body 100, and increase the contact area and heat exchange efficiency of the cooling liquid and the heat generating component 800.

[0055] In the present embodiment, the plate body 100 includes a base plate and a cover plate, and the partition plate 400 is arranged between the base plate and the cover plate, and the base plate, the partition plate 400 and the cover plate can be fixed by welding, bolt connection or clamping.

[0056] In the present embodiment, the plate body 100 and the partition plate 400 are made of high thermal conductivity materials such as aluminum, copper or aluminum-copper alloy, the density of aluminum is low, making the plate body 100 and the partition plate 400 light and easy to process and install, and at the same time, aluminum has good thermal conductivity, which can quickly conduct heat from the heat generating component 800 to the cooling liquid; copper has excellent thermal conductivity, which is one of the highest among all metals, and can effectively reduce the temperature of the heat generating component 800; aluminum-copper alloy combines the advantages of aluminum and copper, it not only has higher strength and hardness than pure aluminum, but also retains good thermal conductivity, and at the same time, by adjusting the alloy composition, a balance between weight and thermal conductivity can be achieved to meet the needs of different application scenarios.

[0057] In the embodiment, the cross section of the jet hole 410 is circular; in other embodiments, the cross section shape of the jet hole 410 can be adjusted as needed, for example, the cross section of the jet hole 410 is set to be rectangular or polygonal, etc.

[0058] In combination Figure 1 , Figure 2 , Figure 3 and Figure 4 , each jet hole 410 has a liquid inlet portion 412, which is directed to the liquid inlet space 110;

[0059] Along the direction parallel to the plate body 100, the liquid inlet portion 412 is arranged between the liquid outlet portion 411 and the liquid outlet connector 300.

[0060] In the embodiment, the liquid inlet connector 200 and the liquid outlet connector 300 are arranged on opposite sides of the plate body 100, and along the direction parallel to the plate body 100, the liquid outlet portion 411 is arranged between the liquid inlet portion 412 and the liquid inlet connector 200, and the liquid inlet portion 412 is arranged between the liquid outlet portion 411 and the liquid outlet connector 300.

[0061] In other embodiments, when the liquid inlet connector 200 and the liquid outlet connector 300 are arranged on the same side of the plate body 100, and the liquid inlet connector 200 and the liquid outlet connector 300 are arranged on the upper and lower parts of the plate body 100 respectively, at this time, along the direction parallel to the plate body 100, the liquid inlet portion 412 is arranged between the liquid outlet portion 411 and the liquid outlet connector 300.

[0062] In the present application, by arranging the liquid outlet portion 411 between the liquid inlet portion 412 and the liquid inlet connector 200, and arranging the liquid inlet portion 412 between the liquid outlet portion 411 and the liquid outlet connector 300, when the cooling liquid flows in the liquid inlet space 110 towards the liquid inlet portion 412, the cooling liquid needs to flow through the position on the partition plate 400 relative to the position of the liquid outlet portion 411 to enter the liquid inlet portion 412, indirectly extending the flow path of the cooling liquid in the liquid inlet space 110, thereby indirectly extending the residence time of the cooling liquid in the liquid inlet space 110, when the cooling liquid is sprayed out through the liquid outlet portion 411 and flows in the cooling space 120, the cooling liquid needs to flow through the position on the partition plate 400 relative to the position of the liquid inlet portion 412 to enter the liquid outlet connector 300, indirectly extending the flow path of the cooling liquid in the liquid inlet space 110, thereby indirectly extending the residence time of the cooling liquid in the liquid inlet space 110, so that the cooling liquid and the heat generating component 800 can achieve more sufficient heat exchange, thereby enabling the cooling liquid to absorb more heat, thereby indirectly improving the cooling efficiency of the cold plate on the heat generating component 800.

[0063] In combination Figure 1 , Figure 2 , Figure 3 and Figure 4The plurality of jet holes 410 are all arranged obliquely on the partition plate 400.

[0064] In the present application, by arranging the jet holes 410 obliquely on the partition plate 400, the jet holes 410 located on a straight line are facilitated to be manufactured, and when the cooling liquid flows in the oblique jet holes 410, the smoothness of the cooling liquid flowing in the oblique jet holes 410 is improved, the influence of the jet force of the cooling liquid caused by the change of the flow direction is prevented, and the cooling efficiency of the cooling liquid on the heat generating component 800 is further improved.

[0065] In other embodiments, the upper half of the jet hole 410 can be arranged vertically to the partition plate 400, and the lower half of the jet hole 410 can be arranged obliquely, and the water outlet direction of the water outlet end can also be changed.

[0066] In combination with Figure 1 , Figure 2 , Figure 3 and Figure 4 , the acute angle formed between the axis of the jet hole 410 and the perpendicular of the partition plate 400 is θ, and 20°≥θ≥10°.

[0067] In the present embodiment, θ is 15°.

[0068] In the present application, the acute angle θ formed between the axis of the jet hole 410 and the perpendicular of the partition plate 400 is greater than or equal to 10° and less than or equal to 20°, which can increase the residence time of the cooling liquid in the cooling space 120, so that the cooling liquid has more time to exchange heat with the heat generating component 800, thereby improving the cooling efficiency, and at the same time, the direct impact force of the cooling liquid on the bottom wall of the plate body 100 can be reduced, and the deformation of the bottom wall of the plate body 100 caused by the large jet force of the jet hole 410 can be prevented.

[0069] The cold plate further comprises a plurality of rib plates 500, the plurality of rib plates 500 are arranged at intervals on the partition plate 400, and the plurality of rib plates 500 are located in the liquid inlet space 110, flow channel grooves 510 are formed between adjacent rib plates 500, each flow channel groove 510 is in communication with the liquid inlet space 110, and each flow channel groove 510 has a plurality of jet holes 410.

[0070] In the present embodiment, the plurality of rib plates 500 are arranged in parallel and at intervals, the rib plate 500 is arranged along the width direction of the plate body 100, the top wall of the rib plate 500 is connected with the top wall of the plate body 100, and the bottom wall of the rib plate 500 is connected with the partition plate 400, so that the rib plate 500 can completely separate the adjacent flow channel grooves 510.

[0071] In the present application, by adopting the arrangement of the rib plate 500, when the cooling liquid flows into the plurality of flow channel grooves 510, it can flow into the plurality of jet holes 410 along the plurality of flow channel grooves 510, so that the plurality of flow channel grooves 510 can guide the cooling liquid, prevent the phenomenon that some jet holes 410 have no cooling liquid sprayed, indirectly increase the coverage area of the cooling liquid in the cooling space 120, and indirectly improve the cooling efficiency; the arrangement of the rib plate 500 can enhance the structural strength of the plate body 100, ensure the stability of the plate body 100 when bearing the pressure of the cooling liquid, and prolong the service life of the cold plate; the formation of the flow channel groove 510 makes the flow of the cooling liquid in the liquid inlet space 110 more orderly, prevents the cooling liquid from being mixed in disorder, and improves the utilization rate of the cooling liquid; the plurality of jet holes 410 are uniformly distributed in the flow channel groove 510, which can make the cooling liquid be sprayed to the cooling space 120 with more uniform flow and pressure, further improve the heat exchange efficiency of the cooling liquid and the heat generating component 800, and ensure the consistency and uniformity of the cooling effect.

[0072] In the present embodiment, the cross section of the rib plate 500 is arranged in a rectangular shape, and the rectangular rib plate 500 can provide good structural support and improve the stability of the cold plate when bearing the pressure of the cooling liquid; in other embodiments, the rib plate 500 can also be arranged in a wave shape or a "Y" shape, etc. The wave-shaped rib plate 500 can increase the flow path length of the cooling liquid and promote the turbulent flow of the cooling liquid, thereby improving the heat exchange efficiency. The "Y" shaped rib plate 500 can more uniformly distribute the cooling liquid, reduce local pressure concentration, and at the same time increase the contact area of the cooling liquid and the rib plate 500, thereby further improving the cooling effect.

[0073] In the present embodiment, the rib plate 500 is integrally formed with the plate body 100 by a CNC machining process, a 3D printing process or a micro-stamping process. The CNC machining process is to accurately remove materials according to a preset program by a computer numerical control machine tool to manufacture a required part, which has the advantages of high precision and repeatability. The 3D printing process is to build a required part by layering materials, which has the advantages of being able to quickly manufacture complex structures without molds and being suitable for small batch production. Micro-stamping is a kind of precision stamping technology, which stamps metal plates into shape under pressure by a mold, and has the advantages of high production efficiency and low cost, and is suitable for mass production. These three processing methods can realize the integral forming of the rib plate 500 and the plate body 100, reduce the assembly process, reduce the production cost, and at the same time improve the reliability and overall performance of the whole cold plate.

[0074] In combination with Figure 5 , Figure 6 , Figure 7 and Figure 8One end of the plurality of rib plates 500 and the inner wall of the plate body 100 form a communication space 520, the communication space 520 communicates with the liquid inlet space 110, one end of the flow channel groove 510 communicates with the communication space 520, and the other end of the flow channel groove 510 is closed.

[0075] In the present embodiment, the cold plate further comprises a closing plate 600, the closing plate 600 is arranged in the liquid inlet space 110, the closing plate 600 is arranged in a “U” shape, the notch of the “U” shaped closing plate 600 faces the liquid inlet joint 200, and the notch of the “U” shaped closing plate 600 communicates with the communication space 520, the plurality of rib plates 500 are arranged in the notch of the “U” shaped closing plate 600 in a spaced manner, one end of the rib plate 500 away from the liquid inlet joint 200 is connected with the bottom wall of the notch of the “U” shaped closing plate 600, so that the closing plate 600 closes the other end of the flow channel groove 510, and one end of the rib plate 500 close to the liquid inlet joint 200 is flush with the notch of the “U” shaped closing plate 600.

[0076] In the present application, by adopting the arrangement of the communication space 520, when the cooling liquid enters along the liquid inlet joint 200, the cooling liquid can flow into the communication space 520, thereby simultaneously entering the plurality of flow channel grooves 510 through the communication space 520, so that the cooling liquid in the plurality of flow channel grooves 510 is sprayed to the cooling space 120 with more uniform flow and pressure, further improving the heat exchange efficiency of the cooling liquid and the heat generating component 800, and ensuring the consistency and uniformity of the cooling effect.

[0077] In combination with Figure 5 , Figure 6 , Figure 7 and Figure 8 , in some embodiments, the liquid inlet joint 200 and the liquid outlet joint 300 are arranged on opposite sides of the plate body 100, the liquid inlet joint 200 and the liquid outlet joint 300 are arranged opposite to each other, the plurality of flow channel grooves 510 form a first flow channel group 530 and at least two second flow channel groups 540, the first flow channel group 530 and the second flow channel group 540 each have at least two flow channel grooves 510, the first flow channel group 530 is arranged in the middle of the liquid inlet space 110, the second flow channel group 540 is arranged on both sides of the first flow channel group 530, and the width of the flow channel groove 510 of the first flow channel group 530 is smaller than the width of the flow channel groove 510 of the second flow channel group 540.

[0078] In the embodiment, the first flow channel group 530 is provided with one group, the second flow channel group 540 is provided with two groups, and the two groups of the second flow channel group 540 are respectively arranged on the two sides of the first flow channel group 530. The liquid inlet connector 200 and the liquid outlet connector 300 are respectively arranged in the middle of the opposite sides of the plate body 100, and the liquid inlet connector 200 and the liquid outlet connector 300 are arranged oppositely. When the first flow channel group 530 has five flow channel grooves 510 and the second flow channel group 540 has two flow channel grooves 510, the width of the five flow channel grooves 510 of the first flow channel group 530 is smaller than the width of the two flow channel grooves 510 of the second flow channel group 540. The number of the flow channel grooves 510 of the first flow channel group 530 and the second flow channel group 540 needs to be adjusted adaptively according to the diameter of the liquid inlet connector 200. When the diameter of the liquid inlet connector 200 is larger, the number of the flow channel grooves 510 of the first flow channel group 530 is more. When the diameter of the liquid inlet connector 200 is smaller, the number of the flow channel grooves 510 of the first flow channel group 530 is less.

[0079] In the application, by arranging the width of the flow channel groove 510 of the first flow channel group 530 to be smaller than the width of the flow channel groove 510 of the second flow channel group 540, the liquid inlet connector 200 is opposite to the plurality of flow channel grooves 510 in the middle of the liquid inlet space 110, so that the liquid inlet connector 200 is close to the plurality of flow channel grooves 510 in the middle of the liquid inlet space 110, and the liquid inlet connector 200 is far away from the plurality of flow channel grooves 510 on the opposite sides of the liquid inlet space 110. After the cooling liquid enters from the liquid inlet connector 200, the plurality of flow channel grooves 510 in the middle can be quickly filled. Since the distance is close and the width of the flow channel groove 510 is narrow, the flow rate of the cooling liquid in the plurality of flow channel grooves 510 in the middle increases due to the small cross-sectional area, so that more intense turbulent flow is generated in the middle region of the cooling space 120, the heat exchange efficiency between the cooling liquid and the heat generating component 800 is enhanced. Since the liquid inlet connector 200 is far away from the flow channel grooves 510 on the two sides, the wider flow channel grooves 510 on the two sides can accommodate more cooling liquid, reduce the flow rate, reduce the pressure loss, and ensure that the cooling liquid flows more smoothly in the entire cold plate, so that better cooling effect is achieved.

[0080] In combination with Figure 5 , Figure 6 , Figure 7 and Figure 8 , in some embodiments, the liquid inlet connector 200 and the liquid outlet connector 300 are respectively arranged on the opposite sides of the plate body 100, the liquid inlet connector 200 and the liquid outlet connector 300 are completely staggered, the width of the flow channel groove 510 of the first flow channel group 530 is equal to the width of the flow channel groove 510 of the second flow channel group 540.

[0081] In the embodiment, the liquid inlet connector 200 is arranged at one end of the edge of one side of the plate body 100, and the liquid outlet connector 300 is arranged at the other end of the edge of the other side of the plate body 100.

[0082] In the present application, after the cooling liquid enters along the liquid inlet joint 200, the cooling liquid can enter the communication space 520 and simultaneously enter multiple flow channel grooves 510 through the communication space 520, at this time, the flow rate and pressure of the cooling liquid in the multiple flow channel grooves 510 are the same, when the cooling liquid is sprayed into the cooling space 120 along the multiple jet holes 410, it can be more stable in the cooling space 120, improve the cooling efficiency and uniformity of the entire cold plate, make the flow rate and pressure distribution of the cooling liquid more uniform, so as to achieve better cooling effect.

[0083] In combination Figure 2 And Figure 3 The cold plate further comprises multiple spades 700, the multiple spades 700 are located in the cooling space 120, and the multiple spades 700 are arranged on the surface of the plate body 100 away from the partition plate 400.

[0084] In the present embodiment, the multiple spades 700 correspond to the multiple rib plates 500 one by one, so that the multiple jet holes 410 in the flow channel groove 510 can be opposite to the position between the adjacent spades 700, preventing the spades 700 from hindering the flow of the cooling liquid; in other embodiments, the spades 700 can also be circular protrusions arranged in the plate body 100.

[0085] In the present embodiment, a spacing is formed between the multiple spades 700 and the partition plate 400, so that the cooling liquid can be better mixed in the cooling space 120 to achieve sufficient heat exchange with the heat generating component 800.

[0086] In other embodiments, the side of the spade 700 close to the partition plate 400 can be connected with the partition plate 400.

[0087] In the present application, by adopting the arrangement of the multiple spades 700, the contact area of the cooling liquid with the plate body 100 is increased, thereby improving the heat exchange efficiency between the cooling liquid and the heat generating component 800, by arranging the multiple spades 700 at intervals, the multiple spades 700 can guide the flow of the cooling liquid, ensure that the cooling liquid is uniformly distributed in the cooling space 120, and further improve the cooling effect; and can also disperse heat, prevent local overheating, and improve the stability and reliability of the entire cold plate.

[0088] The present application further provides an electronic device comprising a device body and the cold plate of any one of the above embodiments connected with the device body.

[0089] The specific structure of the cold plate has been described in detail in the above embodiments, which will not be repeated here.

[0090] In the embodiment, the electronic device can be a computer, and the heat generating component 800 is a chip of the computer; in other embodiments, the electronic device can also be a server or a communication device, and the heat generating component 800 can also be a memory module of the server or a power amplifier of the communication device.

[0091] The electronic device provided in the application, by setting the cold plate, the cooling liquid is input through the liquid inlet joint 200, the cooling liquid can flow into the communication space 520, and flow into the plurality of flow channel grooves 510 along the communication space 520, the cooling liquid is sprayed into the cooling space 120 through the jet hole 410 in the flow channel groove 510, and then is discharged along the liquid outlet joint 300 after heat exchange with the heat generating component 800 through the spade tooth 700 and the plate body 100, so as to realize the cooling of the heat generating component 800, when the cooling liquid is sprayed into the cooling space 120 through the jet hole 410 from the liquid inlet space 110, the cooling liquid can be sprayed along the liquid outlet part 411 in a direction away from the liquid outlet joint 300, the cooling liquid flows in the direction away from the liquid outlet joint 300 for a distance, and then flows towards the position where the liquid outlet joint 300 is located, and finally is discharged along the liquid outlet joint 300, thereby prolonging the flow path of the cooling liquid in the cooling space 120, indirectly prolonging the residence time of the cooling liquid in the cooling space 120, and the longer residence time means that the cooling liquid and the heat generating component 800 can realize more sufficient heat exchange, so that the cooling liquid can absorb more heat, thereby indirectly improving the cooling efficiency of the cold plate on the heat generating component 800.

[0092] Finally, it should be noted that: other embodiments of the application will be readily apparent to those skilled in the art with the consideration of the specification and practice of the application disclosed herein. The application is intended to cover any variations, uses or adaptive changes of the application following the general principles of the application and including known or customary technical means in the art which are not disclosed in the application, and is not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the application is only limited by the appended claims.

Claims

1. A cold-rolled steel plate, characterized in that, include: A plate (100) is used to connect to a heating element (800); Liquid inlet connector (200), the liquid inlet connector (200) is connected to the plate body (100); A liquid outlet connector (300) is connected to the plate body (100); A partition (400) is disposed within the plate body (100). The partition (400) is used to divide the space within the plate body (100) into a liquid inlet space (110) and a cooling space (120). The liquid inlet connector (200) is connected to the liquid inlet space (110), and the liquid outlet connector (300) is connected to the cooling space (120). The cooling space (120) is used to be opposite to the heating element (800). The partition (400) is provided with a plurality of jet holes (410), the jet holes (410) are connected to the liquid inlet space (110) and the cooling space (120), each jet hole (410) has a liquid outlet (411), the liquid outlet (411) faces the cooling space (120), and the liquid outlet direction of the liquid outlet (411) is arranged in a direction away from the liquid outlet connector (300); Each of the jet holes (410) has a liquid inlet (412) facing the liquid inlet space (110); Along a direction parallel to the plate (100), the liquid inlet (412) is disposed between the liquid outlet (411) and the liquid outlet connector (300); The plurality of jet holes (410) are inclinedly arranged on the partition plate (400).

2. The cold-rolled plate according to claim 1, characterized in that, The acute angle formed between the axis of the jet hole (410) and the perpendicular line of the partition plate (400) is θ, where 20°≥θ≥10°.

3. The cold-rolled plate according to claim 1 or 2, characterized in that, It also includes a plurality of ribs (500), which are spaced apart on the partition (400) and located in the liquid inlet space (110). A flow channel groove (510) is formed between adjacent ribs (500), and each flow channel groove (510) is connected to the liquid inlet space (110). Each flow channel groove (510) has a plurality of jet holes (410).

4. The cold-rolled plate according to claim 3, characterized in that, A communicating space (520) is formed between one end of the plurality of ribs (500) and the inner wall of the plate body (100), the communicating space (520) is connected to the liquid inlet space (110), one end of the flow channel (510) is connected to the communicating space (520), and the other end of the flow channel (510) is closed.

5. The cold-rolled plate according to claim 3, characterized in that, Multiple flow channel grooves (510) form a first flow channel group (530) and at least two second flow channel groups (540). The first flow channel group (530) and the second flow channel group (540) each have at least two flow channel grooves (510). The first flow channel group (530) is located in the middle of the liquid inlet space (110). The second flow channel groups (540) are located on both sides of the first flow channel group (530). The width of the flow channel grooves (510) of the first flow channel group (530) is less than or equal to the width of the flow channel grooves (510) of the second flow channel group (540).

6. The cold-rolled plate according to claim 1 or 2, characterized in that, The inlet connector (200) and the outlet connector (300) are respectively disposed on opposite sides of the plate (100); The inlet connector (200) and the outlet connector (300) are arranged opposite to each other, or the inlet connector (200) and the outlet connector (300) are completely offset.

7. The cold-rolled plate according to claim 1 or 2, characterized in that, It also includes a plurality of shovel teeth (700), which are located within the cooling space (120) and are spaced apart on the inner wall of the plate (100) away from the partition (400).

8. An electronic device, characterized in that, Includes the device body and the cold plate as described in any one of claims 1-7 connected to the device body.

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