A cold plate assembly and cooling system

Abstract

This application provides a cold plate assembly and a cooling system for cooling a first battery module and a second battery module arranged vertically from top to bottom. The cold plate assembly includes a first cold plate, a second cold plate, a third cold plate, and a multi-port connector. The first cold plate is located on the side of the first battery module opposite to the second battery module, the second cold plate is located between the first and second battery modules, and the third cold plate is located on the side of the second battery module opposite to the first battery module. The multi-port connector includes a liquid guiding end and multiple connecting ends, each communicating with the liquid guiding end. The multiple connecting ends are connected to the first, second, and third cold plates respectively through multiple connecting pipes. In the vertical direction, the multi-port connector is located between the first and second cold plates. This ensures that coolant can flow smoothly into the first cold plate to dissipate heat from the first battery module, improving the heat dissipation effect of the first cold plate on the first battery module.

Description

Technical Field

[0001] This application relates to the field of heat exchange technology, specifically to a cold plate assembly and cooling system. Background Technology

[0002] With the rapid development of my country's new energy sector, new challenges have been posed to the heat dissipation of battery modules. Typically, battery modules use cold plates for heat dissipation, with coolant introduced into the cold plates through multi-port connectors and connecting pipes. Usually, the coolant is distributed to different cold plates through multi-port connectors and connecting pipes. However, when supplying coolant to multiple cold plates arranged vertically, the multi-port connectors are usually located in the middle of the height direction of the multiple cold plates. This leads to increased resistance for the coolant flowing from the multi-port connectors into the upper cold plates, and may even prevent the coolant from flowing into the upper cold plates, resulting in poor heat dissipation of the battery module. Summary of the Invention

[0003] In view of this, this application provides a cold plate assembly that solves the problem of high resistance to coolant flowing into the upper cold plate through the multi-port connector, resulting in poor heat dissipation for the battery module. This application also provides a cooling system including the above-mentioned cold plate assembly.

[0004] To achieve the above objectives, this application provides the following technical solution: A cold plate assembly for cooling a first battery module and a second battery module arranged vertically from top to bottom, the cold plate assembly comprising: A first cold plate, a second cold plate, and a third cold plate are arranged vertically. The first cold plate is disposed on the side of the first battery module away from the second battery module. The second cold plate is disposed between the first battery module and the second battery module. The third cold plate is disposed on the side of the second battery module away from the first battery module. A multi-port connector includes a liquid guiding end and multiple connecting ends that are all connected to the liquid guiding end. The multiple connecting ends are connected to the first cold plate, the second cold plate and the third cold plate respectively through multiple connecting pipes. In the vertical direction, the multi-port connector is located between the first cold plate and the second cold plate.

[0005] Optionally, the plurality of connection ends are arranged in a horizontal direction, and the plurality of connection ends are all located on the same side of the multi-port connector.

[0006] Optionally, the multi-port connector includes at least two connectors, which are a main inlet connector and a main outlet connector, respectively.

[0007] Optionally, The main inlet connector includes: Total imports; The first outlet is connected to the inlet of the first cold plate via the first liquid outlet pipe; The second outlet is connected to the inlet of the first tee connector via the first connecting pipe. The third outlet of the first tee connector is connected to the inlet of the second cold plate via the second liquid outlet pipe. The fourth outlet of the first tee connector is connected to the inlet of the third cold plate via the third liquid outlet pipe. The main liquid outlet connector includes: Total exports; The first inlet is connected to the outlet of the first cold plate through the first liquid inlet pipe; The second inlet is connected to the outlet of the second tee connector via the second connecting pipe. The third inlet of the second tee connector is connected to the outlet of the second cold plate via the second liquid inlet pipe. The fourth inlet of the second tee connector is connected to the outlet of the third cold plate via the third liquid inlet pipe.

[0008] Optionally, the main liquid inlet connector, the main liquid outlet connector, the first tee connector, and the second tee connector are all integrally molded parts.

[0009] Optionally, the multi-port connector includes a through cavity that is connected to both the liquid guide end and the connection end, and the multi-port connector has a through hole that is connected to the through cavity, and the plug is fastened and sealed to the through hole.

[0010] Optionally, the multi-port connector includes: The first support and the second support are arranged vertically and are both located on the circumferential outer side of the conductive cavity. A first reinforcing rib is disposed between the first support portion and the second support portion; In the vertical direction, the liquid guiding end is located on one side of the first support and the second support, and the plurality of connecting ends are located on the other side of the first support and the second support.

[0011] Optionally, the first tee connector and the second tee connector have the same structure, wherein, The first tee connector includes a first main channel arranged in a vertical direction, the third outlet and the fourth outlet are connected to the two ends of the first main channel in the axial direction, the inlet of the first tee connector is connected to the side of the first main channel, and a first reinforcing rib is provided on the outer circumferential side of the first main channel. The second tee connector includes a second main channel arranged in a vertical direction, the third inlet and the fourth inlet are connected to the two ends of the second main channel in the axial direction, the outlet of the second tee connector is connected to the side of the second main channel, and a second reinforcing rib is provided on the outer circumferential side of the second main channel.

[0012] Optionally, mounting plates are provided on the outer circumferential surfaces of the first and second main channels, and weight-reduction holes are provided on the mounting plates.

[0013] A cooling system comprising the cold plate assembly described in any of the preceding claims.

[0014] The cold plate assembly provided in this application includes a first cold plate, a second cold plate, a third cold plate, and a multi-port connector. The first, second, and third cold plates are arranged vertically in sequence. The first cold plate is located on the side of the first battery module away from the second battery module, the second cold plate is located between the first and second battery modules, and the third cold plate is located on the side of the second battery module away from the first battery module. The multi-port connector includes a liquid guiding end and multiple connecting ends, each communicating with the liquid guiding end. The multiple connecting ends are connected to the first, second, and third cold plates respectively through multiple connecting pipes. Vertically, the multi-port connector is located between the first and second cold plates. Specifically, the first, second, and third cold plates are used to cool the first and second battery modules to ensure that the first and second battery modules operate within a target temperature range. Furthermore, the multi-port connector is located between the first and second cold plates, meaning it is situated on the side of the second cold plate closer to the first cold plate. This way, when coolant is introduced into the first, second, and third cold plates through the connector's connection end and connecting pipe, the vertical distance between the multi-port connector and the first cold plate is reduced due to its location between the two plates. This reduces the resistance to coolant flowing into the first cold plate, ensuring that the coolant can flow smoothly into the first cold plate to dissipate heat from the first battery module and improving the cooling effect of the first cold plate on the first battery module. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 This is a structural schematic diagram of the cold plate assembly provided in this embodiment.

[0017] Figure 2 This is a schematic diagram of a multi-port connector.

[0018] Figure 3 This is a schematic diagram of the main inlet connector.

[0019] Figure 4 This is a schematic diagram of the main liquid outlet connector.

[0020] Figure 5 This is a schematic diagram of the first tee connector.

[0021] Figure 6 This is a schematic diagram of the second tee connector.

[0022] exist Figures 1 to 6 middle: 1-Multi-port connector, 2-Main liquid inlet connector, 3-Main liquid outlet connector, 4-First tee connector, 5-Second tee connector, 6-First cold plate, 7-Second cold plate, 8-Third cold plate, 9-First liquid outlet pipe, 10-First connecting pipe, 11-Second liquid outlet pipe, 12-Third liquid outlet pipe, 13-First liquid inlet pipe, 14-Second connecting pipe, 15-Second liquid inlet pipe, 16-Third liquid inlet pipe, 17-Mounting plate, 18-Weight reduction hole; 101-Liquid guiding end, 102-Connecting end, 103-Conducting cavity, 104-Through hole, 105-Plug, 106-First support part, 107-Second support part, 108-First reinforcing rib, 201-Main inlet, 202-First outlet, 203-Second outlet, 301-Main outlet, 302-First inlet, 303-Second inlet, 401-Third outlet, 402-Fourth outlet, 403-First main channel, 404-First reinforcing rib, 501-Third inlet, 502-Fourth inlet, 503-Second main channel, 504-Second reinforcing rib. Detailed Implementation

[0023] This application provides a cold plate assembly that solves the problem of uneven heat dissipation from the battery module caused by high resistance to coolant flowing into the upper cold plate through the multi-port connector. This application also provides a cooling system including the aforementioned cold plate assembly.

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] like Figures 1 to 6As shown in the figure, this application embodiment provides a cold plate assembly for cooling a first battery module and a second battery module arranged vertically from top to bottom (the first battery module and the second battery module are not shown in the figure; the first battery module is disposed between the first cold plate 6 and the second cold plate 7, and the second battery module is disposed between the second cold plate 7 and the third cold plate 8). The cold plate assembly includes a first cold plate 6, a second cold plate 7, a third cold plate 8, and a multi-port connector 1. The first cold plate 6, the second cold plate 7, and the third cold plate 8 are arranged vertically. The first cold plate 6 is located on the side of the first battery module away from the second battery module. The second cold plate 7 is located between the first and second battery modules. The third cold plate 8 is located on the side of the second battery module away from the first battery module. In other words, the first cold plate 6 and the second cold plate 7 jointly cool the first battery module, and the second cold plate 7 and the third cold plate 8 jointly cool the second battery module. Since the first and second battery modules are arranged sequentially from top to bottom, the first cold plate 6, the second cold plate 7, and the third cold plate 8 are also arranged sequentially from top to bottom, thus ensuring efficient cooling of the first and second battery modules by the first cold plate 6, the second cold plate 7, and the third cold plate 8. Please refer to [link / reference]. Figure 2 The multi-port connector 1 includes a liquid guiding end 101 and multiple connecting ends 102, all of which are conductive to the liquid guiding end 101. Coolant flows into the multi-port connector 1 through the liquid guiding end 101 and then flows out from the multiple connecting ends 102, or coolant flows into the multi-port connector 1 through the multiple connecting ends 102 and then flows out from the liquid guiding end 101. That is to say, the multi-port connector 1 can be either a main liquid inlet connector 2 or a main liquid outlet connector 3. Furthermore, the number of connectors in the multi-port connector 1 is not limited here.

[0026] Specifically, multiple connection terminals 102 are connected to the first cold plate 6, the second cold plate 7, and the third cold plate 8 respectively through multiple connecting pipes, so that coolant flows into the first cold plate 6, the second cold plate 7, and the third cold plate 8 respectively through the multi-port connector 1, or the coolant flowing out of the first cold plate 6, the second cold plate 7, and the third cold plate 8 is collected at the multi-port connector 1. In the vertical direction, the multi-port connector 1 is located between the first cold plate 6 and the second cold plate 7, that is, in the vertical direction, the multi-port connector 1 is located on the side of the second cold plate 7 closer to the first cold plate 6. Since the first cold plate 6 is located on the side of the first battery module away from the second battery module, in the vertical direction, the first cold plate 6 is located at the uppermost position among the first cold plate 6, the second cold plate 7, and the third cold plate 8. In this way, the flow resistance of the coolant into the first cold plate 6 is reduced during the process of the coolant flowing into the first cold plate 6 through the multi-port connector 1, so that the coolant flows smoothly from the multi-port connector 1 into the first cold plate 6, thereby improving the heat dissipation efficiency of the first cold plate 6 for the first battery module.

[0027] For example, the multi-port connector 1 can be a tee connector, in which case one connecting end 102 of the multi-port connector 1 is connected to one of the first cold plate 6, the second cold plate 7, and the third cold plate 8 through a connecting pipe, and the other connecting end 102 of the multi-port connector 1 is connected to the other two of the first cold plate 6, the second cold plate 7, and the third cold plate 8 through a connecting pipe and another tee connector; the multi-port connector 1 can also be a four-port connector, in which case the three connecting ends 102 of the multi-port connector 1 are connected to the first cold plate 6, the second cold plate 7, and the third cold plate 8 respectively.

[0028] It should be noted that the vertical direction is Figure 1 The direction indicated by the double-headed arrow Z.

[0029] The cold plate assembly with the above structure, by placing the multi-port connector 1 between the first cold plate 6 and the second cold plate 7, that is, the multi-port connector 1 is located on the side of the second cold plate 7 closer to the first cold plate 6, when the coolant is introduced into the first cold plate 6, the second cold plate 7 and the third cold plate 8 through the connecting end 102 and the connecting pipe of the multi-port connector 1, the vertical distance between the multi-port connector 1 and the first cold plate 6 is reduced due to the multi-port connector 1 being located between the first cold plate 6 and the second cold plate 7, thereby reducing the resistance of the coolant flowing into the first cold plate 6 through the multi-port connector 1, ensuring that the coolant can flow smoothly into the first cold plate 6 to dissipate heat from the first battery module, and improving the heat dissipation effect of the first cold plate 6 on the first battery module.

[0030] Generally, when the first cold plate 6, the second cold plate 7, and the third cold plate 8 are arranged sequentially from top to bottom, in order to improve the flow efficiency of the coolant, the connecting end 102 of the multi-port connector 1 is usually oriented towards the corresponding cold plate. For example, the connecting end 102 of the multi-port connector 1 connected to the first cold plate 6 is oriented upwards, and the connecting ends 102 of the multi-port connector 1 connected to the second cold plate 7 and the third cold plate 8 are oriented downwards. This increases the resistance when the coolant flows into the first cold plate 6 along the upward-oriented connecting end 102, and there is also the problem that the coolant cannot flow into the first cold plate 6. Therefore, in some embodiments, please refer to... Figure 2 Multiple connection ends 102 are arranged horizontally. Compared to a top-outlet / bottom-outlet configuration, this reduces the flow resistance from the multi-port connector 1 into the first cold plate 6, preventing liquid from failing to flow into the first cold plate 6 and ensuring the heat dissipation efficiency of the first cold plate 6 for the first battery module. Furthermore, all connection ends 102 are located on the same side of the multi-port connector 1, reducing the space occupied by connecting pipes connected to the multi-port connector 1 and reserving installation space for other components below the multi-port connector 1, thus simplifying the liquid cooling piping arrangement in the cold plate assembly.

[0031] It should be noted that the horizontal direction is Figure 1 and Figure 2 The direction indicated by the double-headed arrow X.

[0032] In some embodiments, please refer to Figure 3 and Figure 4 The multi-port connector 1 includes at least two connectors, namely a main liquid inlet connector 2 and a main liquid outlet connector 3. That is to say, the main liquid inlet connector 2 and the main liquid outlet connector 3 have the same structure, so the same mold can be used to process the main liquid inlet connector 2 and the main liquid outlet connector 3, which improves the versatility of the multi-port connector 1 in the cold plate assembly and can greatly reduce the cost of the entire integrated piping system.

[0033] In some embodiments, please refer to Figure 1 and Figure 3 The main liquid inlet connector 2 is a three-way connector. The main liquid inlet interface includes a main inlet 201, a first outlet 202 and a second outlet 203. The first outlet 202 is connected to the inlet of the first cold plate 6 through the first liquid outlet pipe 9. The second outlet 203 is connected to the inlet of the first three-way connector 4 through the first connecting pipe 10. The third outlet 401 of the first three-way connector 4 is connected to the inlet of the second cold plate 7 through the second liquid outlet pipe 11. The fourth outlet 402 of the first three-way connector 4 is connected to the inlet of the third cold plate 8 through the third liquid outlet pipe 12. In this way, when coolant flows into the main inlet 201 of the main inlet connector 2, part of the coolant flows into the first cold plate 6 from the first outlet 202 and the first outlet pipe 9 of the main inlet connector 2; the remaining part of the coolant flows into the first tee connector 4 from the second outlet 203 and the first connecting pipe 10 of the main inlet connector 2. Then, this part of the coolant is diverted and flows to the third outlet 401 and the fourth outlet 402 of the first tee connector 4. The coolant flowing out of the third outlet 401 flows into the second cold plate 7 through the second outlet pipe 11, and the coolant flowing out of the fourth outlet 402 flows into the third cold plate 8 through the third outlet pipe 12. This arrangement allows coolant to flow into the first cold plate 6, the second cold plate 7, and the third cold plate 8 conveniently and efficiently, so that the first cold plate 6, the second cold plate 7, and the third cold plate 8 can continuously cool the first battery module and the second battery module.

[0034] In some embodiments, please refer to Figure 1 and Figure 4The main liquid outlet connector 3 is a three-way connector. The main liquid outlet connector 3 includes a main outlet 301, a first inlet 302 and a second inlet 303. The first inlet 302 is connected to the outlet of the first cold plate 6 through the first liquid inlet pipe 13. The second inlet 303 is connected to the outlet of the second three-way connector 5 through the second connecting pipe 14. The third inlet 501 of the second three-way connector 5 is connected to the outlet of the second cold plate 7 through the second liquid inlet pipe 15. The fourth inlet 502 of the second three-way connector 5 is connected to the outlet of the third cold plate 8 through the third liquid inlet pipe 16. Thus, after the coolant flows through the first cold plate 6, the second cold plate 7, and the third cold plate 8 and cools the first and second battery modules respectively, the coolant in the first cold plate 6 flows into the main outlet connector 3 through the first inlet pipe 13 and the first inlet 302; the coolant in the second cold plate 7 flows into the second three-way connector 5 through the second inlet pipe 15 and the third inlet 501, and the coolant in the third cold plate 8 flows into the second three-way connector 5 through the third inlet pipe 16 and the fourth inlet 502. The coolant flowing into the second three-way connector 5 through the third inlet 501 and the fourth inlet 502 flows into the main outlet connector 3 through the outlet of the second three-way connector 5, the second connecting pipe 14, and the second inlet 303; the coolant flowing into the main outlet connector 3 through the first inlet 302 and the second inlet 303 is discharged through the main outlet 301 of the main outlet connector 3. This configuration allows the coolant after heat exchange in the first cold plate 6, second cold plate 7, and third cold plate 8 to be quickly discharged through the main outlet connector 3 in conjunction with the second tee connector 5 and connecting pipes. This ensures that the coolant can continuously circulate in the first cold plate 6, second cold plate 7, and third cold plate 8, so that the first cold plate 6, second cold plate 7, and third cold plate 8 can continuously cool the first battery module and the second battery module.

[0035] In some embodiments, please refer to Figures 3 to 6 The main inlet connector 2, main outlet connector 3, first tee connector 4, and second tee connector 5 are all integrally molded parts. For example, the main inlet connector 2, main outlet connector 3, first tee connector 4, and second tee connector 5 are all integrally molded from raw materials in a mold. Compared to the above-mentioned connectors being formed by welding separate structures, this arrangement improves the sealing performance of the above structure, thus reducing the probability of leakage when coolant flows through the connectors. Furthermore, this arrangement improves the molding efficiency of the main inlet connector 2, main outlet connector 3, first tee connector 4, and second tee connector 5.

[0036] Further details based on the above embodiments can be found in the following examples. Figure 2The multi-port connector 1 includes a through cavity 103 that communicates with both the liquid guiding end 101 and the connecting end 102, and a through hole 104 that communicates with the through cavity 103. Specifically, since the multi-port connector 1 is a one-piece molded part, and has openings such as the liquid guiding end 101 and the connecting end 102, the multi-port connector 1 inevitably forms a through hole 104 that communicates with both the liquid guiding end 101 and the connecting end 102. Here, by using a plug 105 to fasten and seal the through hole 104, coolant can also be allowed to flow between the liquid guiding end 101 and the connecting end 102 without flowing out from the through hole 104. With this configuration, compared to a split structure, the multi-port connector 1 can also ensure the airtightness of the multi-port structure, ensuring that coolant flows within the multi-port connector 1 without leakage.

[0037] In some embodiments, please refer to Figure 2 The multi-port connector 1 includes a first support portion 106, a second support portion 107, and a first reinforcing rib 108. The first support portion 106 and the second support portion 107 are arranged vertically and are both located on the circumferential outer side of the guiding cavity 103. By providing two support structures, the first support portion 106 and the second support portion 107, the support strength for the liquid guiding end 101 can be improved, thus enhancing the overall structural strength of the multi-port structure. Furthermore, the first reinforcing rib 108 is located between the first support portion 106 and the second support portion 107, further enhancing the structural strength of the first support portion 106 and the second support portion 107. Typically, bolts are used to fix the multi-port connector 1 by acting on the first support portion 106 and the second support portion 107, thereby preventing the bolts from crushing the mounting surface when installing the multi-port connector 1 with bolts, and ensuring that the airtightness of the multi-port connector 1 is not affected. In the vertical direction, the liquid guiding end 101 is located on one side of the first support part 106 and the second support part 107, and multiple connecting ends 102 are located on the other side of the first support part 106 and the second support part 107. Thus, when the liquid guiding end 101 is connected to the main inlet pipe or the main outlet pipe, and when the connecting end 102 is connected to the connecting pipe, the first support part 106 and the second support part 107 can provide support, thereby concentrating the force on the multi-port connector 1 at the structurally stronger positions of the first support part 106 and the second support part 107, further improving the overall structural stability of the multi-port connector 1.

[0038] In some embodiments, please refer to Figure 5 and Figure 6The first tee connector 4 and the second tee connector 5 have the same structure, so they can be manufactured using the same mold, improving the versatility of the tee connectors in the cold plate assembly and greatly reducing the cost of the entire integrated piping system. Specifically, the first tee connector 4 includes a first main channel 403 arranged vertically, a third outlet 401 and a fourth outlet 402 connected to the axial ends of the first main channel 403, and an inlet (…). Figure 5 The area shown in section a) is connected to the side of the first main channel 403. Thus, the coolant flowing from the second outlet 203 of the main inlet connector 2 flows into the first main channel 403 through the inlet of the second outlet pipe 11 and the second tee connector 5. The coolant flowing into the first main channel 403 is then diverted to the third outlet 401 and the fourth outlet 402, and flows into the second cold plate 7 and the third cold plate 8 respectively, thus quickly achieving coolant diversion. Furthermore, in the vertical direction, the inlet of the first tee connector 4 is located at the midpoint of the first main channel 403, near the third outlet 401. That is, the inlet of the first tee connector 4 is positioned close to the third outlet 401. Since the third outlet 401 is located above the fourth outlet 402, this arrangement reduces the flow resistance of the coolant flowing into the second cold plate 7 through the third outlet 401 and the second outlet pipe 11, allowing the coolant to flow smoothly into the second cold plate 7, thereby ensuring the cooling efficiency of the second cold plate 7 for the first and second battery modules. Furthermore, a first reinforcing rib 404 is provided on the outer circumferential side of the first main channel 403. This ensures the coaxiality of the first main channel 403 and prevents the first main channel 403 from becoming skewed, which would result in thin walls on one side. This arrangement also improves the structural strength of the first tee connector 4.

[0039] And, please see Figure 6 The second tee connector 5 includes a second main channel 503 arranged vertically, a third inlet 501 and a fourth inlet 502 connected to the axial ends of the second main channel 503, and an outlet of the second tee connector 5 connected to the side of the second main channel 503. Thus, coolant flowing from the second cold plate 7 flows into the second main channel 503 through the second inlet pipe 15 and the third inlet 501, and coolant flowing from the third cold plate 8 also flows into the second main channel 503 through the third inlet pipe 16 and the fourth inlet 502. The two streams of coolant converge in the second main channel 503 and then flow out through the outlet of the second tee connector 5. Figure 5The coolant flows from area a) to the main outlet connector 3. Furthermore, in the vertical direction, the outlet of the second tee connector 5 is located at the midpoint of the second main channel 503, near the third inlet 501. That is, the outlet of the second tee connector 5 is positioned close to the third inlet 501, thus matching the outlet position of the second tee connector 5 with the inlet position of the first tee connector, thereby balancing the inlet and outlet pressures of the cold plate and balancing the flow rate of the coolant within the cold plate. This also allows the first tee connector 4 and the second tee connector 5 to have identical structures, improving their applicability. Furthermore, a second reinforcing rib 504 is provided on the circumferential outer side of the second main channel 503. This ensures the coaxiality of the second main channel 503, preventing skewing and thinning of one side wall, and also improves the structural strength of the second tee connector 5.

[0040] In some embodiments, please refer to Figure 5 and Figure 6 Mounting plates 17 are provided on the outer circumferential sides of the first main channel 403 and the second main channel 503. Mounting plates 17 facilitate the installation of the first tee connector 4 and the second tee connector 5 to their target positions. Weight-reduction holes 18 are provided on the mounting plates 17. By providing weight-reduction holes 18, the weight of the mounting plates 17 can be reduced without affecting their structural strength, thus achieving overall lightweighting of the battery module and cold plate assembly. Furthermore, the weight-reduction holes 18 reduce the use of raw materials, thereby saving costs.

[0041] This application also provides a cooling system including the above-mentioned cold plate assembly. Since the cooling system includes the above-mentioned cold plate assembly, the beneficial effects of the cooling system brought by the cold plate assembly are as described above and will not be repeated here.

[0042] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0043] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0044] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0045] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0046] It should be understood that the qualifiers “first,” “second,” “third,” “fourth,” “fifth,” and “sixth” used in the description of the embodiments of this application are only used to more clearly illustrate the technical solutions and are not intended to limit the scope of protection of this application.

[0047] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A cold-plate assembly, characterized in that, The cold plate assembly is used to cool the first and second battery modules arranged vertically from top to bottom. A first cold plate (6), a second cold plate (7), and a third cold plate (8) are arranged vertically. The first cold plate (6) is disposed on the side of the first battery module away from the second battery module, the second cold plate (7) is disposed between the first battery module and the second battery module, and the third cold plate (8) is disposed on the side of the second battery module away from the first battery module. The multi-port connector (1) includes a liquid guiding end (101) and multiple connecting ends (102) that are all connected to the liquid guiding end (101). The multiple connecting ends (102) are connected to the first cold plate (6), the second cold plate (7) and the third cold plate (8) respectively through multiple connecting pipes. In the vertical direction, the multi-port connector (1) is located between the first cold plate (6) and the second cold plate (7).

2. The cold plate assembly according to claim 1, characterized in that, The plurality of connection ends (102) are arranged in a horizontal direction, and the plurality of connection ends (102) are all located on the same side of the multi-port connector (1).

3. The cold plate assembly according to claim 1, characterized in that, The multi-port connector (1) includes at least two connectors, namely a main inlet connector (2) and a main outlet connector (3).

4. The cold plate assembly according to claim 3, characterized in that, The main inlet connector (2) includes: Total imports (201); The first outlet (202) is connected to the inlet of the first cold plate (6) through the first liquid outlet pipe (9); The second outlet (203) is connected to the inlet of the first three-way connector (4) through the first connecting pipe (10), the third outlet (401) of the first three-way connector (4) is connected to the inlet of the second cold plate (7) through the second liquid outlet pipe (11), and the fourth outlet (402) of the first three-way connector (4) is connected to the inlet of the third cold plate (8) through the third liquid outlet pipe (12). The main liquid outlet connector (3) includes: Total exports (301); The first inlet (302) is connected to the outlet of the first cold plate (6) through the first liquid inlet pipe (13); The second inlet (303) is connected to the outlet of the second three-way connector (5) through the second connecting pipe (14). The third inlet (501) of the second three-way connector (5) is connected to the outlet of the second cold plate (7) through the second liquid inlet pipe (15). The fourth inlet (502) of the second three-way connector (5) is connected to the outlet of the third cold plate (8) through the third liquid inlet pipe (16).

5. The cold plate assembly according to claim 4, characterized in that, The main liquid inlet connector (2), the main liquid outlet connector (3), the first tee connector (4), and the second tee connector (5) are all integrally molded parts.

6. The cold plate assembly according to claim 5, characterized in that, The multi-port connector (1) includes a through cavity (103) that is connected to both the liquid guide end (101) and the connection end (102). The multi-port connector (1) has a through hole (104) that is connected to the through cavity (103). The plug (105) is fastened and sealed to the through hole (104).

7. The cold plate assembly according to claim 6, characterized in that, The multi-port connector (1) includes: The first support part (106) and the second support part (107) are arranged in a vertical direction and are both located on the circumferential outer side of the conductive cavity (103); The first reinforcing rib (108) is disposed between the first support portion (106) and the second support portion (107); In the vertical direction, the liquid guiding end (101) is located on one side of the first support part (106) and the second support part (107), and the plurality of connecting ends (102) are located on the other side of the first support part (106) and the second support part (107).

8. The cold plate assembly according to claim 4, characterized in that, The first tee connector (4) and the second tee connector (5) have the same structure, wherein, The first tee connector (4) includes a first main channel (403) arranged in a vertical direction, the third outlet (401) and the fourth outlet (402) are connected to the two ends of the first main channel (403) in the axial direction, the inlet of the first tee connector (4) is connected to the side of the first main channel (403), and a first reinforcing rib (404) is provided on the outer circumferential side of the first main channel (403). The second three-way connector (5) includes a second main channel (503) arranged in a vertical direction, the third inlet (501) and the fourth inlet (502) are connected to the two ends of the second main channel (503) in the axial direction, the outlet of the second three-way connector (5) is connected to the side of the second main channel (503), and a second reinforcing rib (504) is provided on the outer circumferential side of the second main channel (503).

9. The cold plate assembly according to claim 8, characterized in that, Mounting plates (17) are provided on the outer circumferential surfaces of the first main channel (403) and the second main channel (503), and weight reduction holes (18) are provided on the mounting plates (17).

10. A cooling system, characterized in that, Includes the cold plate assembly according to any one of claims 1-9.

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