Liquid cooling assembly and liquid cooling tank

Abstract

This utility model provides a liquid cooling assembly and a liquid cooling box, relating to the field of liquid cooling heat dissipation technology. It includes: a liquid cooling plate with a water inlet at its bottom; an outer frame, with at least a portion of the liquid cooling plate disposed on the inner side of the outer frame, and a mounting groove extending from the upper surface to the bottom of the outer frame; an adapter disposed on the mounting groove, with at least a portion of the adapter disposed on the outer side of the outer frame, the adapter also including a water inlet and an outlet communicating with each other, the outlet communicating with the inlet, and the inlet being located on the upper surface of the portion of the adapter located on the outer side of the outer frame; and a water inlet connector connected to the water inlet of the adapter. The liquid cooling assembly provided by this utility model, by adding an adapter, eliminates the need for the water inlet connector to pass through the narrow sidewall of the frame, completely overcoming the limitation of the frame height on the radial dimension of the water inlet connector, thus allowing the use of larger water inlet connectors and significantly improving the coolant flow rate.

Description

Technical Field

[0001] This utility model relates to the field of liquid cooling technology, and more specifically, to a liquid cooling component and a liquid cooling box. Background Technology

[0002] The structure of a liquid cooling assembly mainly includes a liquid cooling plate and a frame located on the outside of the liquid cooling plate to support it. In related technologies, conventional bottom-inlet liquid cooling assemblies typically require the inlet and outlet water connectors to pass through the side wall of the frame and extend outside the frame to connect to an external water source. The drawback of this approach is that, due to the limited height of the frame side wall and the need for the inlet and outlet water connectors to pass through the frame, the radial dimension of the inlet water connector is severely limited, resulting in restricted coolant flow and an inability to achieve a high-flow-rate cooling effect. Utility Model Content

[0003] The present invention aims to at least solve the problem in the related technology that "the frame structure restricts the size of the water inlet connector, resulting in low coolant flow".

[0004] To this end, the first aspect of this utility model provides a liquid cooling assembly, comprising: a liquid cooling plate, the bottom of which is provided with a water inlet; an outer frame, at least a portion of which is disposed on the inner side of the outer frame, and the outer frame is provided with a mounting groove extending from the upper surface of the outer frame to the bottom of the outer frame; an adapter, disposed on the mounting groove, and at least a portion of which is disposed on the outer side of the outer frame, the adapter further comprising a water inlet and a water outlet communicating with each other, the water outlet communicating with the water inlet, and the water inlet being opened on the upper surface of the portion of the adapter located on the outer side of the outer frame; and a water inlet connector connected to the water inlet of the adapter.

[0005] The liquid cooling assembly provided by this utility model, by setting a mounting groove on the outer frame and installing an adapter, leads the water inlet at the bottom of the liquid cooling plate to the external space of the outer frame through the adapter. By adding the adapter, the water inlet connector no longer needs to pass through the narrow side wall of the frame, completely overcoming the limitation of the frame height on the radial dimension of the water inlet connector. This allows for the use of larger-sized water inlet connectors, significantly increasing the coolant flow rate. Furthermore, by opening the water inlet on the upper surface of the extended portion of the adapter, compared to placing it on the side, the upper surface provides a larger installation area and space, allowing the water inlet connector connected thereto to have a larger diameter, further enhancing the cooling potential and upper limit of the flow rate.

[0006] In the above technical solution, the adapter includes a first section located below the liquid cooling plate and a second section located above the mounting groove, as well as a transition section connecting the first section and the second section. The water outlet is located in the first section, and at least a portion of the second section is located on the outside of the outer frame.

[0007] In this technical solution, the adapter, through clearly segmented first section, transition section and second section, achieves a smooth transition and reliable guidance of the fluid channel from the bottom of the liquid cooling plate to the upper outer side of the outer frame. The structure is reasonably designed and easy to manufacture and install.

[0008] In the above technical solution, the upper surface of the second segment of the adapter and the upper surface of the outer frame are on the same plane.

[0009] In this technical solution, the upper surface of the second section and the upper surface of the outer frame are on the same plane, which enables the adapter and the outer frame to be integrated smoothly, resulting in a simple appearance, avoiding abrupt protrusions, saving space, and ensuring that the plane where the water inlet is located has optimal operational accessibility.

[0010] In the above technical solution, the first section, the transition section, and the second section together form a Z-shaped adapter.

[0011] In this technical solution, the Z-shaped flow channel design can efficiently change the flow direction of the coolant within a limited space, achieving a cross-flow from bottom to top. The structure is compact and the fluid resistance is relatively small.

[0012] In the above technical solution, the liquid cooling plate includes: an upper plate; and a flow channel plate connected to the upper plate, wherein the upper plate and the flow channel plate form a liquid flow channel, and the liquid flow channel is connected to the water inlet.

[0013] In this technical solution, the liquid cooling plate adopts the form of a combination of an upper plate and a flow channel plate to form a complex internal flow channel, which has good structural strength, strong sealing performance, and is conducive to large-scale production.

[0014] In the above technical solution, the upper plate includes an upper substrate, a first sidewall extending upward along the circumference of the upper substrate, and a first flange extending outward from the top of the first sidewall. The flow channel plate is connected to the upper substrate, and the first flange abuts against the outer frame.

[0015] In this technical solution, the upper plate adopts a basin-shaped structure with a flange, which not only forms a sealed cavity with the flow channel plate, but also provides a stable and reliable installation and support interface for the liquid cooling plate and the outer frame, thereby enhancing the overall structural rigidity.

[0016] In another technical solution, the flow channel plate includes a flow channel substrate, a second sidewall extending upward along the circumference of the flow channel substrate, and a second flange extending outward from the top of the second sidewall. The upper plate is a flat plate connected to the flow channel substrate, and the second flange abuts against the outer frame.

[0017] In this technical solution, the flow channel plate adopts a basin-shaped structure with flanges, while the upper plate is simplified to a flat plate. This design concentrates the main molding structure in the flow channel plate, which facilitates the precision machining of the flow channel, and at the same time, the flanges of the flow channel plate provide support and connection with the outer frame.

[0018] In the above technical solution, the upper plate, flow channel plate, adapter and water inlet connector are welded together.

[0019] In this technical solution, the components are integrated by welding, which ensures the sealing reliability of the fluid channel, while making the overall structure more stable and the thermal conductivity better.

[0020] In the above technical solution, the liquid flow channel includes two liquid inlet branch flow channels and a cooling flow channel. A first convex bulge is provided on the upper plate. The cavity formed by the first convex bulge and the flow channel plate is connected to the two liquid inlet branch flow channels. The cavity is also connected to the water inlet.

[0021] In this technical solution, by setting up a cavity structure, the coolant can be fed into a single point and automatically distributed to two branch channels, which simplifies the inlet structure, ensures the uniformity of the distribution, and improves the uniformity of the cooling effect.

[0022] In the above technical solution, the outer frame includes a front frame, a rear frame, and two side frames connecting the two, with the mounting slot located on the front frame.

[0023] In this technical solution, the mounting slot and adapter are placed on the front frame, which facilitates the connection and maintenance of pipelines from the front of the equipment, making operation more convenient and the layout more ergonomic.

[0024] In the above embodiments, the liquid cooling assembly further includes a reinforcing beam connected between the two side frames and located below the flow channel plate, for supporting the flow channel plate.

[0025] In this embodiment, the reinforcing beam provides effective auxiliary support for the central area of ​​the flow channel plate, preventing it from deforming excessively due to pressure or vibration, thus ensuring the structural integrity and long-term reliability of the liquid cooling plate.

[0026] In the above embodiments, the liquid cooling assembly further includes a first module fixing beam, which is located above the upper plate and close to the front frame, and the extension direction of the first module fixing beam is the same as the extension direction of the front frame.

[0027] In this embodiment, the first module fixing beam provides a reliable fixing boundary for the battery module or other cooled components installed at the front, facilitating the positioning and installation of the module.

[0028] In the above embodiments, the liquid cooling assembly further includes a second module fixing beam, which is located above the upper plate and close to the rear frame, and the extension direction of the second module fixing beam is the same as the extension direction of the rear frame.

[0029] In this embodiment, the second module fixing beam and the first module fixing beam complement each other, together forming a complete module installation frame, ensuring the stability of module installation.

[0030] In the above embodiments, the liquid cooling assembly further includes multiple limiting strips, which are arranged at intervals along the extension direction of the front frame, and the extension direction of each limiting strip is the same as the extension direction of the side frame.

[0031] In this embodiment, the limiting strip is used to precisely define the installation position of the cooled components such as battery modules on the liquid cooling plate to prevent them from shifting. The thickness of the thermally conductive structural adhesive between the bottom of the component and the liquid cooling plate can be controlled by selecting limiting strips of different thicknesses, thereby optimizing the heat conduction effect.

[0032] The second aspect of this utility model provides a liquid cooling box, including: a box body; and a liquid cooling assembly as described in any of the first aspects of this utility model, wherein the box body is covered on the outer frame and forms a receiving space with the liquid cooling plate.

[0033] In this embodiment, the enclosure, outer frame, and liquid cooling plate together form a sealed housing space, which can be used to install equipment requiring heat dissipation, such as battery modules. Because it employs any of the liquid cooling components described in the first aspect, the liquid-cooled box inherits all of its beneficial effects.

[0034] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0036] Figure 1 One of the structural schematic diagrams of a liquid cooling assembly according to an embodiment of this application is shown;

[0037] Figure 2 A second schematic diagram of the structure of a liquid cooling assembly according to an embodiment of this application is shown;

[0038] Figure 3 The third schematic diagram shows the structure of a liquid cooling assembly according to an embodiment of this application;

[0039] Figure 4 It shows Figure 3 Enlarged view of the structure at point A in the middle;

[0040] Figure 5 It shows Figure 3 Enlarged view of the structure at point B in the middle;

[0041] Figure 6 The fourth schematic diagram shows the structure of a liquid cooling assembly according to one embodiment of this application;

[0042] Figure 7It shows Figure 6 Enlarged view of the structure at point C;

[0043] Figure 8 The fifth schematic diagram shows the structure of a liquid cooling assembly according to an embodiment of this application;

[0044] Figure 9 It shows Figure 8 Enlarged view of the structure at point D;

[0045] Figure 10 A schematic diagram of the structure of a liquid cooling box according to an embodiment of this application is shown;

[0046] Figure 11 The sixth schematic diagram shows the structure of a liquid cooling assembly according to an embodiment of this application.

[0047] in, Figures 1 to 11 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0048] 1. Liquid cooling plate, 12. Upper plate, 122. First convex bulge, 124. Upper base plate, 126. First side wall, 128. First flange, 14. Flow channel plate, 16. Liquid flow channel, 162. Liquid inlet branch flow channel, 164. Cooling flow channel, 166. Liquid return branch flow channel, 182. Water inlet, 184. Water return outlet, 2. Outer frame, 22. Front frame, 222. Mounting groove, 24. Rear frame, 26. Side frame, 28. Step structure, 282. Hollow area, 3. Connector, 41. First locking piece, 42. Second locking piece, 52. Reinforcing beam, 54. Supporting beam, 542. Protruding structure, 6. Adapter, 62. Water inlet, 64. Water outlet, 65. First section, 66. Second section, 67. Transition section, 72. Water inlet connector, 74. Water outlet connector, 82. First module fixing beam, 84. Second module fixing beam, 86. Limiting strip, 9. Housing. Detailed Implementation

[0049] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0050] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0051] like Figure 1 , Figure 3 , Figure 5 and Figure 9As shown, this utility model provides a liquid cooling assembly, including: a liquid cooling plate 1, with a water inlet 182 at the bottom of the liquid cooling plate 1; an outer frame 2, with at least a portion of the liquid cooling plate 1 disposed on the inner side of the outer frame 2, and a mounting groove 222 provided on the outer frame 2, the mounting groove 222 extending from the upper surface of the outer frame 2 to the bottom of the outer frame 2; an adapter 6, disposed on the mounting groove 222, with at least a portion of the adapter 6 disposed on the outer side of the outer frame 2, the adapter 6 also including a water inlet 62 and a water outlet 64 communicating with each other, the water outlet 64 communicating with the water inlet 182, the water inlet 62 being opened on the upper surface of the portion of the adapter 6 located on the outer side of the outer frame 2; and a water inlet connector 72, connected to the water inlet 62 of the adapter 6.

[0052] The liquid cooling assembly provided by this utility model, by setting an mounting groove 222 on the outer frame 2 and installing an adapter 6, leads the water inlet 182 at the bottom of the liquid cooling plate 1 to the external space of the outer frame 2 through the adapter 6. The liquid cooling assembly provided by this utility model, by adding the adapter 6, eliminates the need for the water inlet connector 72 to pass through the narrow side wall of the frame, completely overcoming the limitation of the frame height on the radial dimension of the water inlet connector 72. This allows for the use of a larger water inlet connector 72, significantly improving the coolant flow rate. Furthermore, by opening the water inlet 62 on the upper surface of the extended portion of the adapter 6, compared to setting it on the side, the upper surface provides a larger installation area and space, allowing the water inlet connector 72 connected thereto to have a larger diameter, further enhancing the cooling potential and flow rate limit.

[0053] In the above technical solution, the adapter 6 includes a first section 65 located below the liquid cooling plate 1 and a second section 66 located above the mounting groove 222, as well as a transition section 67 connecting the first section 65 and the second section 66. The water outlet 64 is located on the first section 65, and at least a portion of the second section 66 is located on the outside of the outer frame 2.

[0054] In this technical solution, the adapter 6, through the clearly segmented first segment 65, transition segment 67 and second segment 66, achieves a smooth transition and reliable guidance of the fluid channel from the bottom of the liquid cooling plate 1 to the upper outer side of the outer frame 2. The structure is reasonably designed and easy to manufacture and install.

[0055] In the above technical solution, the upper surface of the second segment 66 of the adapter 6 and the upper surface of the outer frame 2 are on the same plane.

[0056] In this technical solution, the upper surface of the second segment 66 of the adapter 6 and the upper surface of the outer frame 2 are on the same plane, which makes the adapter 6 and the outer frame 2 flat and integrated, with a simple appearance, avoiding abrupt protrusions, saving space, and ensuring that the plane where the water inlet 62 is located has the best operational accessibility.

[0057] In the above technical solution, the first segment 65, the transition segment 67, and the second segment 66 together form a Z-shaped adapter 6.

[0058] In this technical solution, the Z-shaped flow channel design can efficiently change the flow direction of the coolant within a limited space, achieving a cross-flow from bottom to top. The structure is compact and the fluid resistance is relatively small.

[0059] In the above technical solutions, such as Figure 1 , Figure 7 and Figure 8 As shown, the liquid cooling plate 1 includes an upper plate 12 and a flow channel plate 14. The flow channel plate 14 is connected to the upper plate 12 and has a recessed portion. After the upper plate 12 is connected to the flow channel plate 14, the upper plate 12 and the recessed portion of the flow channel plate 14 can form a liquid flow channel 16, which is connected to the water inlet 182.

[0060] In this technical solution, the liquid cooling plate 1 adopts the form of a combination of the upper plate 12 and the flow channel plate 14 to form a complex internal flow channel, which has good structural strength, strong sealing performance, and is conducive to large-scale production.

[0061] In the above technical solutions, such as Figure 1 , Figure 3 and Figure 4 As shown, the upper plate 12 is connected to the upper surface of the outer frame 2. The inner sidewall of the outer frame 2 is provided with a stepped structure 28, and a hollow area 282 is opened on the stepped structure 28. The connector 3 is fixed on the stepped structure 28 and is provided corresponding to the hollow area 282. The first locking member 41 can pass through the connector 3, the flow channel plate 14 and the upper plate 12 in sequence from the bottom of the connector 3, and then fasten the liquid cooling plate 1 to the outer frame 2 from the other side by a nut.

[0062] The liquid cooling assembly provided by this utility model constructs a stable stress point by setting a stepped structure 28 with a hollow area 282 on the inner side of the outer frame 2 and fixing an independent connecting piece 3. After the first locking piece 41 passes through from the bottom upwards, it can form an effective fastening with the connecting piece 3, thereby firmly locking the liquid cooling plate 1 to the outer frame 2. The liquid cooling assembly provided by this utility model effectively solves the technical problem that it is difficult to reliably fix the liquid cooling plate 1 in a hollow frame, while avoiding the inconvenience caused by welding methods, and significantly improving the convenience of disassembly, assembly and maintenance of the liquid cooling plate 1.

[0063] In the above embodiment, the connector 3 has a U-shaped structure.

[0064] In this embodiment, the zigzag structure provides ample space for installation and operation, facilitating the insertion and fastening of the first locking member 41 from the bottom.

[0065] In the above embodiment, the lowest point of the first locking member 41 is higher than the lowest point of the outer frame 2.

[0066] In this embodiment, the lowest point of the first locking member 41 is higher than the lowest point of the outer frame 2, ensuring that the first locking member 41 will not interfere with the external mounting surface or other structures during the installation or transportation of the liquid cooling assembly, thereby improving the safety and convenience of use.

[0067] In the above embodiment, the connector 3 is welded to the stepped structure 28.

[0068] In this embodiment, the welding connection method achieves a firm connection between the connector 3 and the stepped structure 28, ensuring the strength and stability of the load-bearing foundation and making the connection more reliable.

[0069] In the above technical solutions, such as Figure 11 As shown, the upper plate 12 includes an upper substrate 124, a first sidewall 126 extending upward along the circumference of the upper substrate 124, and a first flange 128 extending outward from the top of the first sidewall 126. The flow channel plate 14 is connected to the upper substrate 124, and the first flange 128 abuts against the outer frame 2.

[0070] In this technical solution, the upper plate 12 adopts a basin-shaped structure with a flange, which not only forms a sealed cavity with the flow channel plate 14, but also provides a stable and reliable installation and support interface for the liquid cooling plate 1 and the outer frame 2, thereby enhancing the overall structural rigidity.

[0071] In another technical solution, the flow channel plate 14 includes a flow channel substrate, a second sidewall extending upward along the circumference of the flow channel substrate, and a second flange extending outward from the top of the second sidewall. The upper plate 12 is a flat plate connected to the flow channel substrate, and the second flange abuts against the outer frame 2.

[0072] In this technical solution, the flow channel plate 14 adopts a basin-shaped structure with a flange, while the upper plate 12 is simplified to a flat plate. This design concentrates the main molding structure in the flow channel plate 14, which facilitates the precision machining of the flow channel, and at the same time, the flange of the flow channel plate 14 provides support and connection with the outer frame 2.

[0073] In the above technical solution, the upper plate 12, the flow channel plate 14, the adapter 6 and the water inlet connector 72 are welded together.

[0074] In this technical solution, the components are integrated by welding, which ensures the sealing reliability of the fluid channel, while making the overall structure more stable and the thermal conductivity better.

[0075] In the above technical solutions, such as Figure 1 , Figure 2 , Figure 8 and Figure 9As shown, the liquid flow channel 16 includes two liquid inlet branch channels 162 and a cooling flow channel 164. A first protrusion 122 is provided on the upper plate 12. The cavity formed by the first protrusion 122 and the flow channel plate 14 is connected to the two liquid inlet branch channels 162. The cavity is also connected to the water inlet 182.

[0076] In this technical solution, by setting up a cavity structure, the coolant can be fed into a single point and automatically distributed to two branch channels, which simplifies the inlet structure, ensures the uniformity of the distribution, and improves the uniformity of the cooling effect.

[0077] like Figure 1 , Figure 8 and Figure 9 As shown, the liquid flow channel 16 also includes a return branch flow channel 166, through which the cooling flow channel 164 collects the cooled liquid; the bottom of the flow channel plate 14 is also provided with a return water port 184, which is connected to the return branch flow channel 166; the liquid cooling assembly also includes a water outlet connector 74, which is connected to the water outlet 184 for discharging the cooled liquid.

[0078] Combination Figure 2 and Figure 9 There are two first protrusions 122, one located above the two inlet branch channels 162 and the other above the two return branch channels 166. One first protrusion 122 can form an inlet chamber with the flow channel plate 14, so that the coolant entering from the inlet 182 can enter the inlet chamber and then flow into the cooling flow channel 164 through the two inlet branch channels 162. The other first protrusion 122 can form an outlet chamber with the flow channel plate 14, so that the liquid flowing out of the cooling flow channel 164 can enter the outlet chamber through the two return branch channels 166 and then flow out from the return port 184.

[0079] In the above technical solutions, such as Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the liquid cooling assembly also includes: a support beam 54, which is connected between the two side frames 26 and is located near the front frame 22. The support beam 54 has a protruding structure 542, and the lower surface of the flow channel plate 14 abuts against the upper surface of the protruding structure 542; and a second locking member 42, which passes through the protruding structure 542, the flow channel plate 14 and the upper plate 12 from below the support beam 54, and securely connects the liquid cooling plate 1 to the support beam 54.

[0080] In this embodiment, by setting a support beam 54 with a protruding structure 542 below the front part of the liquid cooling plate 1 and fastening it with the second locking member 42, and cooperating with the structure of the connecting member 3 at the rear, the liquid cooling plate 1 is balanced and firmly fixed at both ends, which further improves the overall connection rigidity and stability.

[0081] In the above technical solution, the outer frame 2 includes a front frame 22, a rear frame 24 and two side frames 26 connected between the two, and the mounting groove 222 is provided on the front frame 22.

[0082] In this technical solution, the mounting slot 222 and the adapter 6 are set on the front frame 22, which facilitates the connection and maintenance of pipelines from the front of the equipment, making the operation more convenient and the layout more ergonomic.

[0083] In the above technical solution, the stepped structure 28 and the connector 3 are set on the rear frame 24, which provides a clear and stable rear-end positioning and fastening for the liquid cooling plate 1, and optimizes the stress distribution of the overall structure.

[0084] In the above embodiment, the liquid cooling assembly further includes a reinforcing beam 52, which is connected between the two side frames 26 and located below the flow channel plate 14, for supporting the flow channel plate 14.

[0085] In this embodiment, the reinforcing beam 52 provides effective auxiliary support for the central area of ​​the flow channel plate 14, preventing it from deforming excessively due to pressure or vibration, and ensuring the structural integrity and long-term reliability of the liquid cooling plate 1.

[0086] In the above embodiment, the liquid cooling assembly also includes a first module fixing beam 82, which is located above the upper plate 12 and close to the front frame 22, and the extension direction of the first module fixing beam 82 is the same as the extension direction of the front frame 22.

[0087] In this embodiment, the first module fixing beam 82 provides a reliable fixing boundary for the battery module or other cooled components installed at the front, facilitating the positioning and installation of the module.

[0088] In the above embodiment, the liquid cooling assembly also includes a second module fixing beam 84, which is disposed above the upper plate 12 and close to the rear frame 24, and the extension direction of the second module fixing beam 84 is the same as the extension direction of the rear frame 24.

[0089] In this embodiment, the second module fixing beam 84 and the first module fixing beam 82 complement each other to form a complete module installation frame, ensuring the stability of module installation.

[0090] In the above embodiment, the liquid cooling assembly also includes a plurality of limiting strips 86 disposed above the upper plate 12. The plurality of limiting strips 86 are arranged at intervals along the extension direction of the front frame 22, and the extension direction of each limiting strip 86 is the same as the extension direction of the side frame 26.

[0091] In this embodiment, the limiting strip 86 is used to precisely define the installation position of the cooled components such as battery modules on the liquid cooling plate 1 to prevent them from moving around. The thickness of the thermally conductive structural adhesive between the bottom of the component and the liquid cooling plate 1 can be controlled by selecting limiting strips 86 of different thicknesses to optimize the heat conduction effect.

[0092] like Figure 1 and Figure 10 As shown, the second aspect of this utility model provides a liquid cooling box, including: a box body 9; as in any of the liquid cooling components of the first aspect of this utility model, the box body 9 is covered on the outer frame 2 to form a receiving space with the liquid cooling plate 1.

[0093] In this embodiment, the housing 9, the outer frame 2, and the liquid cooling plate 1 together form a sealed enclosure, which can be used to install equipment requiring heat dissipation, such as battery modules. Because it employs any of the liquid cooling components described in the first aspect, the liquid cooling box inherits all of its beneficial effects.

[0094] Another embodiment of this utility model provides a liquid cooling box.

[0095] It's important to understand that with the rapid development of energy storage technology, high-energy-density, large-capacity, large-size, and long-life battery packs have become an industry trend, placing higher demands on the strength of the battery pack enclosure. However, traditional battery packs have the following problems:

[0096] 1. Traditional battery pack enclosures lack rigidity and are prone to deformation during hoisting or due to their own weight, which may pose significant risks during transportation and use.

[0097] 2. The inlet and outlet of the liquid cooling plate of the traditional battery pack extend beyond the edge of the PACK (Power Battery Pack). During the processing of the cold plate, the excess plate material needs to be removed, resulting in low material utilization, high cost, and limited capacity. An additional protective plate is required.

[0098] 3. Traditional battery pack cold plate brackets do not support the bottom crossbeam, resulting in high stress at the connection between the bottom crossbeam and the longitudinal beam. Under conditions such as transportation vibration, cracking, fatigue deformation and other failures are likely to occur.

[0099] 4. Traditional battery pack cold plate brackets require a dedicated bottom crossbeam to connect with the module fixing beam, which increases mold costs and weight, resulting in higher costs.

[0100] 5. For traditional battery pack liquid-cooled housings, when using structural adhesive to connect the liquid cooling plate to the bracket, it is necessary to develop a special pressure bonding tool to ensure the flatness of the housing after adhesive application.

[0101] 6. Traditional cold plate flow channels do not employ a flow diversion design at the inlet and outlet. When a larger flow rate is required, the flow resistance increases, the system efficiency is greatly reduced, and it may even fail to meet the heat dissipation requirements.

[0102] This utility model aims to solve the problems of high cost, insufficient strength, poor reliability, and difficulty in ensuring temperature uniformity of liquid-cooled plate housings for high-energy-density, large-capacity, large-size, and heavy battery packs.

[0103] The main technical points are as follows:

[0104] 1. The cross-sectional structure of the side frame 26, the front frame 22 and the rear frame 24 is stepped, forming three steps, which are used to fix the liquid cooling plate 1, the reinforcing beam 52 and support the reinforcing beam 52 respectively.

[0105] 2. A recessed liquid flow channel 16 is provided on the flow channel plate 14. Two inlet branch flow channels 162 and two return branch flow channels 166 are respectively provided at the inlet and outlet of the liquid flow channel 16. The upper plate 12 is basin-shaped and has two oblong first protrusions 122 at the inlet and outlet. A fluid channel is provided inside the adapter 6. The upper plate 12, flow channel plate 14, adapter 6, water inlet connector 72 and water outlet connector 74 are brazed to form a fluid channel. The fluid is divided into two branches after passing through the inlet and outlet.

[0106] 3. Remove the bottom rear crossbeam, set a notch in the rear frame 24 and weld the connector 3, and connect it directly to the second module fixing beam 84 with bolts.

[0107] 4. The supporting beam 54 is provided with multiple protruding structures 542, which are connected to the supporting liquid cooling plate 1 and the front frame 22 by structural adhesive to avoid stress concentration.

[0108] 5. A convex structure is provided on the flow channel plate 14, which can be used to rivet and fix the reinforcing beam 52 to the liquid cooling plate 1.

[0109] 6. The reinforcing beam 52 has an internal cavity with a filling block inside. When the reinforcing beam 52 is connected and fixed, it is riveted from the outside to the filling block.

[0110] Specifically, the integrated liquid-cooled box includes: an upper plate 12, a flow channel plate 14, an adapter 6, a water inlet connector 72, a side frame 26, a front frame 22, a rear frame 24, a reinforcing beam 52, a supporting beam 54, a fixing corner piece, a connector 3, a first module fixing beam 82, a second module fixing beam 84, and a limiting strip 86.

[0111] The integrated liquid-cooled box is formed by integrating cold plate components, steel brackets, and modular fixing beams into one unit.

[0112] The cold plate assembly is brazed from an upper plate 12, a flow channel plate 14, a connector 6, an inlet connector 72, and an outlet connector 74. The flow channel plate 14 is provided with a recessed liquid flow channel 16. The inlet and outlet of the liquid flow channel 16 are respectively provided with two branch flow channels. The upper plate 12 is basin-shaped and is provided with two oblong first protrusions 122. The connector 6 is provided with a fluid channel. After being brazed with the upper plate 12, the flow channel plate 14, the inlet connector 72, and the outlet connector 74, the fluid is divided into two branches after passing through the inlet and outlet, which can realize the diversion of large flow rates.

[0113] The steel bracket consists of a side frame 26, a front frame 22, a rear frame 24, a reinforcing beam 52, a supporting beam 54, fixing corner pieces, and connecting pieces 3. The side frame 26, the front frame 22, and the rear frame 24 are each provided with three steps to increase their body strength, and can also be used to fix the cold plate assembly, the reinforcing beam 52, and support the reinforcing beam 52, respectively.

[0114] The fixing corner pieces are used to connect the side frame 26 and the front frame 22, and also to connect the side frame 26 and the rear frame 24. The cold plate assembly is connected to the outer frame 2 by rivet nuts.

[0115] The first module fixing beam 82 and the second module fixing beam 84 can be made of steel roll forming or aluminum extrusion, and are connected to the outer frame 2 and the liquid cooling plate 1 by bolts.

[0116] The flow channel plate 14 is connected to the reinforcing crossbeam 52 and the supporting crossbeam 54 by structural adhesive.

[0117] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one embodiment or example.

[0118] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A liquid cooling assembly, characterized in that, include: A liquid cooling plate, wherein a water inlet is provided at the bottom of the liquid cooling plate; The outer frame has at least a portion of the liquid cooling plate disposed on the inner side of the outer frame, and the outer frame has a mounting groove that extends from the upper surface of the outer frame to the bottom of the outer frame. An adapter is provided on the mounting groove, and at least a portion of the adapter is located on the outer side of the outer frame. The adapter also includes an inlet and an outlet that are interconnected. The outlet is connected to the inlet, and the inlet is located on the upper surface of the portion of the adapter located on the outer side of the outer frame. The water inlet connector is connected to the water inlet of the adapter.

2. The liquid cooling assembly according to claim 1, characterized in that, The adapter includes a first section located below the liquid cooling plate and a second section located above the mounting groove, as well as a transition section connecting the first section and the second section. The water outlet is located in the first section, and at least a portion of the second section is located on the outside of the outer frame.

3. The liquid cooling assembly according to claim 2, characterized in that, The upper surface of the second segment of the adapter is on the same plane as the upper surface of the outer frame; and / or The first segment, the transition segment, and the second segment together form a Z-shaped adapter.

4. The liquid cooling assembly according to claim 1, characterized in that, The liquid cooling plate includes: upper plate; A flow channel plate is connected to the upper plate, and the upper plate and the flow channel plate form a liquid flow channel, which is connected to the water inlet.

5. The liquid cooling assembly according to claim 4, characterized in that, The upper plate includes an upper substrate, a first sidewall extending upward along the circumference of the upper substrate, and a first flange extending outward from the top of the first sidewall. The flow channel plate is connected to the upper substrate, and the first flange abuts against the outer frame. or The flow channel plate includes a flow channel substrate, a second sidewall extending upward in the circumferential direction along the flow channel substrate, and a second flange extending outward from the top of the second sidewall. The upper plate is a flat plate, which is connected to the flow channel substrate, and the second flange abuts against the outer frame.

6. The liquid cooling assembly according to claim 4, characterized in that, The upper plate, the flow channel plate, the adapter and the water inlet connector are welded together.

7. The liquid cooling assembly according to claim 4, characterized in that, The liquid flow channel includes two liquid inlet branch channels and a cooling flow channel. The upper plate is provided with a first protrusion. The cavity formed by the first protrusion and the flow channel plate is connected to the two liquid inlet branch channels. The cavity is also connected to the water inlet.

8. The liquid cooling assembly according to claim 4, characterized in that, The outer frame includes a front frame, a rear frame, and two side frames connecting the two, and the mounting slot is provided on the front frame.

9. The liquid cooling assembly according to claim 8, characterized in that, The liquid cooling assembly also includes: A reinforcing beam, connected between the two side frames and located below the flow channel plate, is used to support the flow channel plate; and / or A first module fixing beam is disposed above the upper plate and close to the front frame, and the extending direction of the first module fixing beam is the same as the extending direction of the front frame; and / or The second module fixing beam is located above the upper plate and close to the rear frame, and the extending direction of the second module fixing beam is the same as the extending direction of the rear frame; and / or Multiple limiting strips are arranged at intervals along the extension direction of the front frame, and the extension direction of each limiting strip is the same as the extension direction of the side frame.

10. A liquid-cooled box, characterized in that, include: Box; The liquid cooling assembly as described in any one of claims 1 to 9, wherein the housing is mounted on the outer frame to form a receiving space with the liquid cooling plate.

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