Cold plate structure and vehicle

Abstract

The utility model belongs to the technical field of automobiles, and discloses a cold plate structure and a vehicle, the cold plate structure comprises a bottom plate, a cover plate arranged on the bottom plate and a heating piece arranged on the cover plate, a direct cooling channel and a liquid channel are formed between the bottom plate and the cover plate, and the heating piece and the direct cooling channel are oppositely arranged. When the battery module is cooled, the heating piece and / or the liquid flowing through the liquid channel heats the battery module, and when the battery module is cooled, the refrigerant flowing through the direct cooling channel and / or the liquid flowing through the liquid channel cools the battery module, so that the heat of the liquid and the heat generated by the heating piece are used for heating the battery module; therefore, the heating efficiency of the battery module is guaranteed, meanwhile, the area of the heating piece can be set to be small, the pasting area of the cold plate structure and the battery module is guaranteed, and then the pasting stability of the cold plate structure and the battery module is improved on the premise that the heating efficiency of the battery module is guaranteed.

Description

Technical Field

[0001] This application belongs to the technical field of automobiles, specifically relating to a cold plate structure and a vehicle. Background Technology

[0002] As a core component of new energy vehicles, the battery pack's operating temperature directly affects its performance and lifespan. Therefore, new energy vehicles are generally equipped with a thermal management system to cool the battery pack when its operating temperature is higher than the set temperature and to heat it when its operating temperature is lower than the set temperature, thereby keeping the battery pack operating within an optimal temperature range to ensure its performance and extend its lifespan.

[0003] Currently, a cold plate structure is commonly used for thermal management of battery modules. This structure has an internal direct cooling channel connected to the vehicle's air conditioning system. Cooling is achieved by the refrigerant absorbing heat and undergoing a phase change within this channel. A heating film is installed on the outside of the cold plate structure, positioned between the battery module and the cold plate structure. This heating film generates heat to warm the battery module. However, since the cold plate structure is glued to the battery module, the area of ​​the heating film affects the bonding area between the cold plate structure and the battery module. Therefore, increasing the bonding stability between the cold plate structure and the battery module while ensuring efficient heating of the battery module has become a pressing technical challenge. Utility Model Content

[0004] This application provides a cold plate structure to increase the bonding stability between the cold plate structure and the battery module while ensuring the heating efficiency of the battery module.

[0005] The technical solution adopted in this application is as follows:

[0006] A cold plate structure includes a base plate, a cover plate disposed on the base plate, and a heating element disposed on the cover plate. An independent direct cooling channel and a liquid channel are formed between the base plate and the cover plate. The heating element is disposed opposite to the direct cooling channel. When heating a battery module, the heating element and / or the liquid flowing through the liquid channel heat the battery module. When cooling the battery module, the refrigerant flowing through the direct cooling channel and / or the liquid flowing through the liquid channel cools the battery module.

[0007] By adopting the above technical solution, when the cold plate structure of this application is installed on the battery module, the cover plate is pasted onto the battery module so that the heating element is located between the battery module and the cover plate. Then, the pipeline of the new energy vehicle air conditioning system is connected to the direct cooling channel so that the refrigerant in the air conditioning system can enter the direct cooling channel and cool the battery module. The pipeline of the new energy vehicle cooling system is connected to the liquid channel so that the low-temperature liquid in the cooling system can enter the liquid channel to cool the battery module, or the liquid in the cooling system can directly enter the liquid channel after cooling the engine or motor so that the waste heat of the engine or motor can be used to heat the battery module. When the battery module temperature is low and the need for heating is urgent, the heating element can work together with the high-temperature liquid flowing through the liquid channel to heat the battery module, thereby improving the heating efficiency of the battery module.

[0008] The cold plate structure in this application can cool the battery module by utilizing the refrigerant flowing through the direct cooling channel and the low-temperature liquid flowing through the liquid channel, thereby ensuring uniform heating of the battery module and improving the cooling effect. When heating the battery module, the high-temperature liquid flowing through the liquid channel and the heat generated by the heating element can be used to heat the battery module. Since the heating element and the cooling channel are arranged opposite each other, the battery module can be heated evenly, thereby improving the heating effect. Furthermore, since the high-temperature liquid flowing through the liquid channel and the heat generated by the heating element can be used to heat the battery module, the area of ​​the heating element can be miniaturized to increase the bonding area between the cold plate structure and the battery module, thereby increasing the bonding stability between the cold plate structure and the battery module.

[0009] Optionally, the direct cooling channel includes a direct cooling inlet section, a direct cooling diversion section connected to the direct cooling inlet section, and a direct cooling outlet section connected to the direct cooling diversion section. Multiple direct cooling diversion sections are provided at intervals. The liquid channel includes a liquid inlet section, a liquid diversion section connected to the liquid inlet section, and a liquid outlet section connected to the liquid diversion section. Multiple liquid diversion sections are provided, and at least a portion of each liquid diversion section is located between two adjacent direct cooling diversion sections.

[0010] By adopting the above technical solution, since each liquid distribution section is located between two adjacent direct cooling distribution sections, the liquid channels and direct cooling channels are distributed throughout the entire cold plate structure, so that the battery module can be heated evenly when heated or cooled using a single method, thereby improving the heating or cooling effect of the battery module.

[0011] Optionally, the cover plate has a direct cooling zone disposed opposite to the direct cooling diversion section, and the heating element is disposed in the direct cooling zone and occupies 0.45-0.55 times the area of ​​the direct cooling zone.

[0012] By adopting the above technical solution, since the heating element is located in the direct cooling zone, which is opposite to the direct cooling distribution section, and multiple direct cooling distribution sections are spaced apart, the multiple heating elements are spaced apart. This increases the bonding points between the cold plate structure and the battery module, avoiding the phenomenon that the bonding stability between the cold plate structure and the battery module is affected by the heating elements being concentrated in a certain position on the cover plate. This increases the bonding stability between the cold plate structure and the battery module. At the same time, it can improve the heating uniformity of the battery module when the heating film is used to heat the battery module alone, thereby improving the heating effect of the battery module. Furthermore, since the heating element occupies 0.45-0.55 times the area of ​​the direct cooling zone, it can further increase the bonding area between the cold plate structure and the battery module, thereby further increasing the bonding stability between the cold plate structure and the battery module.

[0013] Optionally, the liquid inlet section includes a first liquid inlet section and a second liquid inlet section disposed opposite to each other, and the liquid diversion section includes a first liquid diversion section communicating with the first liquid inlet section and a second liquid diversion section communicating with the second liquid inlet section.

[0014] By adopting the above technical solution, since the liquid inlet section includes a first liquid inlet section and a second liquid inlet section arranged opposite to each other, and the liquid diversion section includes a first liquid diversion section connected to the first liquid inlet section and a second liquid diversion section connected to the second liquid inlet section, the liquid enters the liquid channel through the first liquid inlet section and the second liquid inlet section, and then enters the liquid outlet section through the first liquid diversion section and the second liquid diversion section to be discharged from the liquid channel. This shortens the flow path of the liquid in the liquid channel, thereby reducing the flow time of the liquid in the liquid channel, thus ensuring the heating or cooling effect of the liquid on the battery module. In addition, it also allows the liquid to flow to various parts of the cold plate structure in a shorter time, thereby improving the heating or cooling efficiency of the battery module.

[0015] Optionally, the base plate or the cover plate is provided with a first connecting hole corresponding to the first liquid inlet section and the second liquid inlet section, the base plate or the cover plate is provided with a first protruding cover, the first protruding cover and the base plate or the cover plate form a first connecting channel communicating with the first connecting hole, and the base plate or the cover plate is provided with a liquid inlet communicating with the first liquid inlet section or the second liquid inlet section.

[0016] By adopting the above technical solution, when cooling or heating the battery module, liquid enters the first liquid inlet section or the second liquid inlet section through a liquid inlet. Then, the liquid flows along the first liquid inlet section or the second liquid inlet section and enters the first connecting channel through a first connecting hole. The liquid entering the first connecting channel flows along the first connecting channel and enters the second liquid inlet section or the second liquid inlet section through another first connecting hole. This achieves the goal of liquid entering the first liquid inlet section and the second liquid inlet section through a single liquid inlet, thereby reducing the number of liquid inlets required and the number of pipelines required for new energy vehicles. On the one hand, this reduces the production cost of new energy vehicles and simplifies the connection difficulty of the cold plate structure. On the other hand, by having the liquid enter the first liquid inlet section and the second liquid inlet section through a single liquid inlet, the flow speed of the liquid in the liquid channel can be reduced, thereby increasing the flow time of the liquid in the liquid channel. This allows for full utilization of the heat of the liquid to cool or heat the battery module, thereby improving the cooling or heating effect of the battery module.

[0017] Optionally, the first liquid diversion section and / or the second liquid diversion section includes a first liquid re-diversion section and a second liquid re-diversion section located inside the first liquid re-diversion section. The second liquid re-diversion section is connected to the liquid outlet section, and the first liquid re-diversion section is connected to the liquid outlet section through a connecting structure. The bottom plate or the cover plate is provided with a liquid outlet connected to the liquid outlet section.

[0018] By adopting the above technical solution, when cooling or heating the battery module, the liquid flowing along the first liquid inlet section and the second liquid inlet section enters the first liquid subdivision section and the second liquid subdivision section, and then the liquid flows along the first liquid subdivision section and the second liquid subdivision section. The liquid flowing along the first liquid subdivision section enters the liquid outlet section through the connecting structure, while the liquid flowing along the second liquid subdivision section directly enters the liquid outlet section, so that the liquid entering the liquid outlet section flows along the liquid outlet section and flows out through the liquid outlet, thereby completing the cooling or heating of the battery module.

[0019] This application increases the flow area of ​​the first and / or second liquid diversion sections by designing them as including both a first and a second liquid re-diversion section. This reduces the flow velocity of the liquid after it enters the first liquid diversion section via the first liquid inlet section, and similarly reduces the flow velocity after it enters the second liquid diversion section via the second liquid inlet section. This increases the flow time of the liquid in the liquid channel, thereby improving the heat utilization efficiency of the liquid and thus improving the heating efficiency of the battery module. Furthermore, the first liquid re-diversion section is connected to the liquid outlet section via a connecting structure, allowing it to avoid contact with the second liquid re-diversion section and the direct cooling diversion section. This simplifies the channel design, reduces the manufacturing difficulty of the cold plate structure, and improves its production efficiency.

[0020] Optionally, the base plate or the cover plate is provided with a second connecting hole corresponding to the first liquid re-segmentation and the liquid outlet segment. The connecting structure includes a second protruding cover provided on the base plate or the cover plate, and a second connecting channel communicating with the second connecting hole is formed between the second protruding cover and the base plate or the cover plate.

[0021] By adopting the above technical solution, the liquid flowing to the end of the first liquid re-segment enters the second connecting channel through the second connecting hole corresponding to the first liquid re-segment, and then the liquid continues to flow along the second connecting channel, so that the liquid enters the liquid outlet segment through the second connecting hole corresponding to the liquid outlet segment, thereby allowing the liquid to be collected in the liquid outlet segment and discharged through the liquid outlet, so as to realize the connection between the first liquid re-segment and the liquid outlet segment, thereby reducing the number of liquid outlets that need to be set, and thus reducing the number of pipelines required for new energy vehicles. On the one hand, it reduces the difficulty of connecting new energy vehicles to the liquid channel, and on the other hand, it reduces the production cost of new energy vehicles equipped with the cold plate structure of this application.

[0022] By setting the connecting structure as a second convex cover, the design of the connecting structure is simplified, thereby reducing the production cost of the cold plate structure.

[0023] Optionally, the first liquid inlet section and / or the second liquid inlet section includes a transverse extension section extending along the width direction of the base plate and a longitudinal extension section extending along the length direction of the base plate, wherein the longitudinal extension section is arranged parallel to the first liquid diversion section.

[0024] By adopting the above technical solution, since the lateral extension section extends along the width direction of the base plate and the longitudinal extension section extends along the length direction of the base plate, the flow time of the coolant in the liquid channel can be extended to improve the cooling or heating effect on the battery module. At the same time, the longitudinal extension section is located on the side of the direct cooling diversion section so that the liquid channel is more evenly distributed on the base plate, thereby improving the uniformity of heat distribution of the battery module.

[0025] Optionally, the direct cooling inlet section includes a first direct cooling inlet section and a second direct cooling inlet section arranged opposite to each other, and the direct cooling diversion section includes a plurality of first direct cooling diversion sections and a plurality of second direct cooling diversion sections connected end to end. The first end of the outer first direct cooling diversion section is connected to the end of the first direct cooling inlet section, the tail end of the inner first direct cooling diversion section is connected to the first end of the direct cooling outlet section, the first end of the outer second direct cooling diversion section is connected to the end of the second direct cooling inlet section, and the tail end of the inner second direct cooling diversion section is connected to the first end of the direct cooling outlet section.

[0026] By adopting the above technical solution, when cooling the battery module, the refrigerant enters the first and second direct cooling inlet sections through the direct cooling inlet. The refrigerant entering the first direct cooling inlet section flows along the first direct cooling inlet section and enters the first direct cooling diversion section located on the outside. The refrigerant entering the first direct cooling diversion section flows along the first direct cooling diversion section and passes through multiple first direct cooling diversion sections in sequence before entering the direct cooling outlet section. The refrigerant entering the second direct cooling inlet section flows along the second direct cooling inlet section and enters the second direct cooling diversion section located on the outside. The refrigerant entering the second direct cooling diversion section flows along the second direct cooling diversion section and passes through multiple second direct cooling diversion sections in sequence before entering the direct cooling outlet section. The refrigerant entering the direct cooling outlet section flows along the direct cooling outlet section and is finally discharged through the direct cooling outlet.

[0027] Furthermore, by setting the direct cooling inlet section to include a first direct cooling inlet section and a second direct cooling inlet section, and setting the direct cooling diversion section to include a first direct cooling diversion section and a second direct cooling diversion section, this application can shorten the flow path of the refrigerant in the direct cooling channel, thereby reducing the flow time of the refrigerant in the direct cooling channel and ensuring the cooling effect on the battery module. On the other hand, it can enable the refrigerant to flow to various parts of the cold plate structure in a shorter time, thereby improving the cooling effect on the battery module.

[0028] Optionally, two adjacent first direct cooling diversion sections and / or second direct cooling diversion sections are connected by a connecting section, and the first direct cooling diversion section and / or second direct cooling diversion section includes a first direct cooling re-diversion section and a second direct cooling re-diversion section.

[0029] By adopting the above technical solution, since the first direct cooling diversion section and / or the second direct cooling diversion section include a first direct cooling re-diversion section and a second direct cooling re-diversion section, the refrigerant in the first direct cooling inlet section and / or the second direct cooling inlet section enters the first direct cooling re-diversion section and the second direct cooling re-diversion section for further diversion, thereby reducing the flow velocity of the refrigerant in the first direct cooling diversion section and / or the second direct cooling diversion section, thereby increasing the flow time of the refrigerant in the direct cooling channel, increasing the time for the refrigerant to absorb heat from the battery module, and thus improving the cooling effect of the refrigerant on the battery module.

[0030] Optionally, the channel area of ​​the liquid channel is smaller than the channel area of ​​the direct cooling channel.

[0031] By adopting the above technical solution, as the driving range of new energy vehicles continues to increase, the temperature of the battery module will gradually increase, which will make the cooling demand of the battery module greater than the heating demand of the battery module. Therefore, the channel area of ​​the liquid channel is set to be smaller than the channel area of ​​the direct cooling channel. On the one hand, the heating effect of the battery module can be guaranteed, and on the other hand, the cooling effect of the battery module can be guaranteed.

[0032] This application also provides a vehicle that, while ensuring the heating efficiency of the battery module, increases the bonding stability between the cold plate structure and the battery module.

[0033] A vehicle comprising the cold plate structure as described above.

[0034] By adopting the above technical solution, since the vehicle in this application uses the above-mentioned cold plate structure, the bonding area between the cold plate structure and the battery module is increased while ensuring the heating efficiency of the battery module, thereby improving the connection stability between the cold plate structure and the battery module.

[0035] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0036] 1. The cold plate structure in this application includes a base plate, a cover plate disposed on the base plate, and a heating element disposed on the cover plate. An independent direct cooling channel and a liquid channel are formed between the base plate and the cover plate. The heating element is disposed opposite to the direct cooling channel. When the battery module is heated, the heating element and / or the liquid flowing through the liquid channel heats the battery module. When the battery module is cooled, the refrigerant flowing through the direct cooling channel and / or the liquid flowing through the liquid channel cools the battery module. In other words, the high-temperature liquid flowing through the liquid channel and the heat generated by the heating element can be used to heat the battery module. This allows for a miniaturized design of the heating element to increase the bonding area between the cold plate structure and the battery module, thereby increasing the bonding stability between the cold plate structure and the battery module.

[0037] 2. The direct cooling channel in this application includes a direct cooling inlet section, a direct cooling diversion section connected to the direct cooling inlet section, and a direct cooling outlet section connected to the direct cooling diversion section. Multiple direct cooling diversion sections are provided at intervals. The liquid channel includes a liquid inlet section, a liquid diversion section connected to the liquid inlet section, and a liquid outlet section connected to the liquid diversion section. Multiple liquid diversion sections are provided, and each liquid diversion section is located between two adjacent direct cooling diversion sections. This allows the liquid channel and the direct cooling channel to be distributed throughout the entire cold plate structure, so that the battery module can be heated evenly when heated or cooled using a single method, thereby improving the heating or cooling effect of the battery module.

[0038] 3. The cover plate in this application has a direct cooling zone opposite to the direct cooling distribution section. The heating element is located in the direct cooling zone and occupies 0.45-0.55 times the area of ​​the direct cooling zone. This allows multiple heating elements to be spaced apart, thereby increasing the bonding points between the cold plate structure and the battery module. This avoids the phenomenon that the bonding stability between the cold plate structure and the battery module is affected by the concentration of heating elements in a certain position on the cover plate, thus increasing the bonding stability between the cold plate structure and the battery module. At the same time, it can improve the heating uniformity of the battery module when the heating film is used to heat the battery module alone, thereby improving the heating effect of the battery module. Furthermore, the fact that the heating element occupies 0.45-0.55 times the area of ​​the direct cooling zone can further increase the bonding area between the cold plate structure and the battery module, thereby further increasing the bonding stability between the cold plate structure and the battery module. Attached Figure Description

[0039] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0040] Figure 1 This is a schematic diagram of the cold plate structure described in one embodiment of this application;

[0041] Figure 2 This is a schematic diagram of the cold plate structure described in one embodiment of this application from another perspective, where the dashed lines represent the cooling zone;

[0042] Figure 3 This is a schematic diagram of the structure of the base plate described in one embodiment of this application, where the dashed arrows indicate the flow path of the liquid;

[0043] Figure 4 This is a cross-sectional view of the structure at the second connecting hole of the cold plate structure described in one embodiment of this application;

[0044] Figure 5 This is a cross-sectional view of the first connecting hole of the cold plate structure described in one embodiment of this application.

[0045] Figure label:

[0046] 1. Base plate; 11. Fixing hole; 12. Reinforcing rib; 2. Cover plate; 21. First connecting hole; 22. First protruding cap; 23. Second protruding cap; 24. Second connecting hole; 3. Liquid channel; 31. First liquid inlet section; 311. Lateral extension section; 312. Longitudinal extension section; 313. Liquid inlet; 314. Pipe joint; 32. Second liquid inlet section; 33. First liquid diversion section; 331. First liquid re-diversion section; 332. Second liquid re-diversion section Sections; 34. Second liquid diversion section; 35. Liquid outlet section; 351. Liquid outlet; 4. Direct cooling channel; 41. First direct cooling inlet section; 411. Direct cooling inlet; 42. Second direct cooling inlet section; 43. First direct cooling diversion section; 431. First direct cooling re-diversion section; 432. Second direct cooling re-diversion section; 433. Connecting section; 434. Clearance structure; 44. Second direct cooling diversion section; 45. Direct cooling outlet section; 451. Direct cooling outlet; 5. Heating element. Detailed Implementation

[0047] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0048] 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.

[0049] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0051] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "a particular embodiment," "example," or "specific example," etc., indicate that the 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 can be combined in any suitable manner in one or more embodiments or examples.

[0052] Reference Figures 1 to 5 A cold plate structure is disclosed, which includes a base plate 1, a cover plate 2 disposed on the base plate 1, and a heating element 5 disposed on the cover plate 2. An independent direct cooling channel 4 and a liquid channel 3 are formed between the base plate 1 and the cover plate 2. The heating element 5 is disposed opposite to the direct cooling channel 4. When heating the battery module, the heating element 5 and / or the liquid flowing through the liquid channel 3 heat the battery module. When cooling the battery module, the refrigerant flowing through the direct cooling channel 4 and / or the liquid flowing through the liquid channel 3 cools the battery module.

[0053] The aforementioned “the heating element 5 and the direct cooling channel 4 are arranged opposite each other” means that the projection of the heating element 5 toward the base plate 1 is at least partially overlapped with the direct cooling channel 4.

[0054] Understandably, when the cooling requirement of the battery module is low, it can be cooled solely by the refrigerant flowing through the direct cooling channel 4 or solely by the low-temperature liquid flowing through the liquid channel 3. Conversely, when the cooling requirement is high, both the refrigerant flowing through the direct cooling channel 4 and the low-temperature liquid flowing through the liquid channel 3 can be used together to cool the battery module. Similarly, when the heating requirement of the battery module is low, it can be heated solely by the high-temperature liquid flowing through the liquid channel 3 or solely by the heat generated by the heating element 5. Conversely, when the heating requirement is high, both the high-temperature liquid flowing through the liquid channel 3 and the heat generated by the heating element 5 can be used together to heat the battery module.

[0055] When the cold plate structure of this application is installed on the battery module, the cover plate 2 is pasted onto the battery module so that the heating element 5 is located between the battery module and the cover plate 2. Then, the pipeline of the new energy vehicle air conditioning system is connected to the direct cooling channel 4 so that the refrigerant in the air conditioning system can enter the direct cooling channel 4 and cool the battery module. The pipeline of the new energy vehicle cooling system is connected to the liquid channel 3 so that the low-temperature liquid in the cooling system can enter the liquid channel 3 to cool the battery module, or the liquid in the cooling system can directly enter the liquid channel 3 after cooling the engine or motor so that the waste heat of the engine or motor can be used to heat the battery module. When the battery module temperature is low and the need for heating is urgent, the heating element 5 can work together with the high-temperature liquid flowing through the liquid channel 3 to heat the battery module to improve the heating efficiency of the battery module.

[0056] It should be noted that, for hybrid vehicles, the aforementioned cooling system can be a cooling system for cooling the engine, a cooling system for cooling the motor, or a cooling system for cooling both the engine and the motor; for pure electric vehicles, the aforementioned cooling system is a cooling system for cooling the motor. Of course, in addition to using the cooling system inherent in the new energy vehicle itself to provide low-temperature or high-temperature liquid to the liquid channel 3, a separate liquid thermal management system can also be configured for the new energy vehicle. That is, the new energy vehicle is equipped with a liquid thermal management system connected to the liquid channel 3. The thermal management system includes a storage tank for storing liquid, a water pump connected to the storage tank for pumping liquid into the liquid channel 3, a heating mechanism located in the storage tank for heating the liquid, and a cooling mechanism located in the storage tank for cooling the liquid.

[0057] In this application, the cold plate structure can cool the battery module using the refrigerant flowing through the direct cooling channel 4 and the low-temperature liquid flowing through the liquid channel 3, ensuring uniform heating and improving the cooling effect. When heating the battery module, the high-temperature liquid flowing through the liquid channel 3 and the heat generated by the heating element 5 can be used. Because the heating element 5 is positioned opposite the cooling channel, the battery module can be heated evenly, further improving the heating effect. Furthermore, since the high-temperature liquid flowing through the liquid channel 3 and the heat generated by the heating element 5 can be used to heat the battery module, the area of ​​the heating element 5 can be miniaturized, reducing the area occupied by the heating element 5 on the cover plate 2. This increases the bonding area between the cold plate structure and the battery module, thereby increasing the bonding stability between the cold plate structure and the battery module while maintaining heating efficiency.

[0058] This application does not specifically limit the formation method of the direct cooling channel 4 and the liquid channel 3. Preferably, the base plate 1 is stamped to form a direct cooling groove and a liquid groove in the direction away from the cover plate 2. After the cover plate 2 is sealed and connected to the base plate 1, the direct cooling groove and the liquid groove together form the direct cooling channel 4 and the liquid channel 3 under the sealing effect of the cover plate 2. In other embodiments, the base plate 1 is stamped to form a recessed cavity in the direction away from the cover plate 2. The recessed cavity is provided with a flow-around rib that is sealed and connected to the base plate 1 and the cover plate 2. The flow-around rib makes the recessed cavity form an independent liquid channel 3 and a direct cooling channel 4. Of course, the direct cooling channel 4 and the liquid channel 3 can also be formed by the structure stamped and formed on the cover plate 2 together with the base plate 1.

[0059] This application does not specifically limit the structure of the heating element 5. Preferably, the heating element 5 is a heating film disposed on the cover plate 2, so as to use the heat generated by the heating film when it is working to heat the battery module, thereby improving the heating efficiency of the battery module, extending the service life of the cold plate structure and reducing the failure rate of the cold plate structure, thus improving the user experience. In other embodiments, the heating element 5 may also be a heating wire disposed on the cover plate 2, so as to use the heat generated by the heating wire when it is working to heat the battery module; of course, the heating element 5 may also be other structures capable of generating heat.

[0060] This application does not specifically limit the structure of the direct cooling channel 4 and the liquid channel 3. Preferably, refer to... Figure 3 The direct cooling channel 4 includes a direct cooling inlet section, a direct cooling branch section connected to the direct cooling inlet section, and a direct cooling outlet section 45 connected to the direct cooling branch section. Multiple direct cooling branch sections are provided at intervals. The liquid channel 3 includes a liquid inlet section, a liquid branch section connected to the liquid inlet section, and a liquid outlet section 35 connected to the liquid branch section. Multiple liquid branch sections are provided, and at least a portion of each liquid branch section is located in two adjacent direct cooling branch sections.

[0061] When the refrigerant is used to cool the battery module, the refrigerant enters the direct cooling inlet section and then enters multiple direct cooling branch sections along the direct cooling inlet section. Subsequently, the refrigerant enters the direct cooling outlet section 45 along the multiple direct cooling branch sections, so that the refrigerant finally returns to the air conditioning system through the direct cooling outlet section 45. When the refrigerant flows in the direct cooling channel 4, it can absorb the heat of the battery module to achieve cooling of the battery module.

[0062] When using liquid to cool or heat the battery module, the liquid enters the liquid inlet section and flows along the liquid inlet section into multiple liquid distribution sections, and then flows along the multiple liquid distribution sections into the liquid outlet section 35, so that the liquid finally returns to the cooling system or a separate liquid thermal management system through the liquid outlet section 35. When the liquid flows in the liquid channel 3, it can exchange heat with the battery module to achieve cooling or heating of the battery module.

[0063] Since each liquid distribution section is located between two adjacent direct cooling distribution sections, the liquid channel 3 and the direct cooling channel 4 are distributed throughout the entire cold plate structure, so that the battery module can be heated evenly when heated or cooled using a single method, thereby improving the heating or cooling effect of the battery module.

[0064] It should be noted that the phrase "at least part of each liquid distribution section is located between two adjacent direct cooling distribution sections" can mean that the liquid distribution sections and the direct cooling distribution sections are arranged alternately, or that multiple liquid distribution sections are located between two adjacent direct cooling distribution sections.

[0065] Furthermore, refer to Figure 2 The cover plate 2 has a direct cooling zone that is opposite to the direct cooling diversion section, and the heating element 5 is located in the direct cooling zone and occupies 0.45-0.55 times the area of ​​the direct cooling zone.

[0066] It is understandable that each direct cooling zone corresponds to multiple direct cooling branch sections, and the two ends of the longest direct cooling branch section in each direct cooling zone constitute the two ends in the length direction of the direct cooling zone, while the outer and inner sides of the multiple direct cooling branch sections in each direct cooling zone constitute the two sides in the width direction of the direct cooling zone.

[0067] Because there are multiple direct cooling shunt sections spaced apart, there are multiple direct cooling zones, and each direct cooling zone is equipped with a heating element 5. This arrangement of multiple heating elements 5 at intervals increases the bonding points between the cold plate structure and the battery module, preventing the heating elements 5 from being concentrated in a certain position on the cover plate 2, which could affect the bonding stability between the cold plate structure and the battery module. This increases the bonding stability between the cold plate structure and the battery module. At the same time, it improves the heating uniformity of the battery module when the heating film is used to heat the battery module alone, thereby improving the heating effect of the battery module.

[0068] Furthermore, the heating element 5 occupies 0.45-0.55 times the area of ​​the direct cooling zone, thereby further reducing the area occupied by the heating element 5 in the direct cooling zone, which can further increase the bonding area between the cold plate structure and the battery module, and thus further increase the bonding stability between the cold plate structure and the battery module.

[0069] In a preferred embodiment, refer to Figure 3The liquid inlet section includes a first liquid inlet section 31 and a second liquid inlet section 32 arranged opposite to each other. The liquid diversion section includes a first liquid diversion section 33 connected to the first liquid inlet section 31 and a second liquid diversion section 34 connected to the second liquid inlet section 32. The liquid enters the liquid channel 3 through the first liquid inlet section 31 and the second liquid inlet section 32, and then enters the liquid outlet section 35 through the first liquid diversion section 33 and the second liquid diversion section 34 to be discharged from the liquid channel 3. This shortens the flow path of the liquid in the liquid channel 3, reduces the flow time of the liquid in the liquid channel 3, and ensures the heating or cooling effect of the liquid on the battery module. In addition, it can also make the liquid flow to various parts of the cold plate structure in a shorter time, thereby improving the heating or cooling efficiency of the battery module.

[0070] It is understandable that both the first liquid diversion section 33 and the second liquid diversion section 34 are connected to the liquid outlet section 35.

[0071] The better one is to refer to Figure 3 The liquid outlet section 35 is located at the middle position in the width direction of the bottom plate 1. The first liquid inlet section 31 and the second liquid inlet section 32 are located on both sides of the liquid outlet section 35, and the first liquid diversion section 33 and the first liquid inlet section 31 are located on the same side of the liquid outlet section 35. The second liquid diversion section 34 and the second liquid inlet section 32 are located on the same side of the liquid outlet section 35, so that the liquid entering the liquid channel 3 first flows to both sides of the cold plate structure, and then exits the liquid channel 3 at the middle position in the width direction of the cold plate structure.

[0072] This application does not specifically limit the manner in which liquid enters the first liquid inlet section 31 and the second liquid inlet section 32. Preferably, the bottom plate 1 or the cover plate 2 is provided with a first connecting hole 21 corresponding to the first liquid inlet section 31 and the second liquid inlet section 32, and the bottom plate 1 or the cover plate 2 is provided with a first protruding cover 22. The first protruding cover 22 and the bottom plate 1 or the cover plate 2 form a first connecting channel communicating with the first connecting hole 21, and the bottom plate 1 or the cover plate 2 is provided with a liquid inlet 313 communicating with the first liquid inlet section 31 or the second liquid inlet section 32.

[0073] When cooling or heating the battery module, liquid enters the first liquid inlet section 31 or the second liquid inlet section 32 through liquid inlet 313. Then, the liquid flows along the first liquid inlet section 31 or the second liquid inlet section 32 and enters the first connecting channel through the first connecting hole 21. The liquid entering the first connecting channel flows along the first connecting channel and enters the second liquid inlet section 32 through another first connecting hole 21. This allows the liquid to enter the first liquid inlet section 31 and the second liquid inlet section 32 through one liquid inlet 313, thereby reducing the number of liquid inlets 313 required and reducing the number of pipelines required for new energy vehicles. On the one hand, this reduces the production cost of new energy vehicles and reduces the difficulty of connecting the cold plate structure. On the other hand, the liquid entering the first liquid inlet section 31 and the second liquid inlet section 32 through one liquid inlet 313 can reduce the flow speed of the liquid in the liquid channel 3, thereby increasing the flow time of the liquid in the liquid channel 3. This allows the heat of the liquid to be fully utilized to cool or heat the battery module, thereby improving the cooling or heating effect of the battery module.

[0074] The better one is to refer to Figure 5 The first connecting hole 21 is provided on the cover plate 2, and the first convex cover 22 is fixedly connected to the cover plate 2 and sealed to the cover plate 2, so that the first convex cover 22 and the cover plate 2 together form the first connecting channel. The liquid inlet 313 is provided on the cover plate 2 and is provided corresponding to the first liquid inlet section 31, so that the liquid inlet 313 is connected to the first liquid inlet section 31.

[0075] It is understandable that the liquid first enters the first liquid inlet section 31 through the liquid inlet 313, and then enters the second liquid inlet section 32 through the first connecting hole 21 and the first connecting channel. That is, the liquid enters the first liquid inlet section 31 and the second liquid inlet section 32 through a liquid inlet 313.

[0076] In other embodiments, two liquid inlets 313 may be provided on the cover plate 2. The two liquid inlets 313 are respectively provided for the first liquid inlet section 31 and the second liquid inlet section 32. That is, the liquid enters the first liquid inlet section 31 and the second liquid inlet section 32 through the two liquid inlets 313 respectively.

[0077] Furthermore, refer to Figure 3 The first liquid diversion section 33 and / or the second liquid diversion section 34 include a first liquid re-diversion section 331 and a second liquid re-diversion section 332 located inside the first liquid re-diversion section 331. The second liquid re-diversion section 332 is connected to the liquid outlet section 35. The first liquid re-diversion section 331 is connected to the liquid outlet section 35 through a connecting structure. The bottom plate 1 or the cover plate 2 is provided with a liquid outlet 351 that is connected to the liquid outlet section 35.

[0078] It should be noted that the "second liquid re-segment 332 located inside the first liquid re-segment 331" mentioned above refers to the second liquid re-segment 332 being located on the side of the first liquid re-segment 331 near the liquid outlet segment 35.

[0079] When cooling or heating the battery module, the liquid flowing along the first liquid inlet section 31 and the second liquid inlet section 32 enters the first liquid re-segment 331 and the second liquid re-segment 332, and then the liquid flows along the first liquid re-segment 331 and the second liquid re-segment 332. The liquid flowing along the first liquid re-segment 331 enters the liquid outlet section 35 through the connecting structure, while the liquid flowing along the second liquid re-segment 332 directly enters the liquid outlet section 35, so that the liquid entering the liquid outlet section 35 flows along the liquid outlet section 35 and flows out through the liquid outlet 351, thereby completing the cooling or heating of the battery module.

[0080] This application increases the flow area of ​​the first liquid diversion section 33 and / or the second liquid diversion section 34 by including a first liquid re-diversion section 331 and a second liquid re-diversion section 332. This reduces the flow velocity of the liquid after it enters the first liquid diversion section 33 via the first liquid inlet section 31, and similarly reduces the flow velocity of the liquid after it enters the second liquid diversion section 34 via the second liquid inlet section 32. This increases the flow time of the liquid in the liquid channel 3, thereby improving the heat utilization efficiency of the liquid and thus improving the heating efficiency of the battery module. In addition, the first liquid re-diversion section 331 is connected to the liquid outlet section 35 through a connecting structure, allowing the first liquid re-diversion section 331 to avoid the second liquid re-diversion section 332 and the direct cooling diversion section. This simplifies the channel design, reduces the production difficulty of the cold plate structure, and improves the production efficiency of the cold plate structure.

[0081] Preferably, both the first liquid diversion section 33 and the second liquid diversion section 34 include a first liquid re-diversion section 331 and a second liquid re-diversion section 332 located inside the first liquid re-diversion section 331. That is, both first liquid re-diversion sections 331 are connected to the liquid outlet section 35 through a connecting structure.

[0082] This application does not impose specific limitations on the connected structure; preferred options are described below. Figure 4 The bottom plate 1 or the cover plate 2 is provided with a second connecting hole 24 corresponding to the first liquid re-segment 331 and the liquid outlet segment 35. The connecting structure includes a second convex cover 23 provided on the bottom plate 1 or the cover plate 2. A second connecting channel is formed between the second convex cover 23 and the bottom plate 1 or the cover plate 2, which is connected to the second connecting hole 24.

[0083] Liquid flowing to the end of the first liquid re-segment 331 enters the second connecting channel through the second connecting hole 24 corresponding to the first liquid re-segment 331. The liquid then continues to flow along the second connecting channel, so that the liquid enters the liquid outlet segment 35 through the second connecting hole 24 corresponding to the liquid outlet segment 35. The liquid is then collected in the liquid outlet segment 35 and discharged through the liquid outlet 351, thereby achieving the connection between the first liquid re-segment 331 and the liquid outlet segment 35. This reduces the number of liquid outlets 351 that need to be set, thereby reducing the number of pipelines required for new energy vehicles. On the one hand, it reduces the difficulty of connecting new energy vehicles to the liquid channel 3, and on the other hand, it reduces the production cost of new energy vehicles equipped with the cold plate structure of this application.

[0084] By setting the connecting structure as the second convex cover 23, the design of the connecting structure is simplified, thereby reducing the production cost of the cold plate structure.

[0085] Preferably, the cover plate 2 is provided with a second connecting hole 24 corresponding to the first liquid re-segmentation 331 and the liquid outlet segment 35, and the second convex cover 23 is fixedly connected to the cover plate 2 and sealed to the cover plate 2, so that a second connecting channel is formed between the second convex cover 23 and the cover plate 2.

[0086] In other implementation examples, the connection structure can also be a three-way pipe, in which two pipes are respectively connected to two first liquid sub-segments 331, and the remaining pipe is connected to the liquid outlet segment 35.

[0087] Furthermore, refer to Figure 3 The first liquid inlet section 31 and / or the second liquid inlet section 32 include a transverse extension section 311 extending along the width direction of the base plate 1 and a longitudinal extension section 312 extending along the length direction of the base plate 1. The longitudinal extension section 312 is arranged parallel to the first liquid diversion section 33.

[0088] Since the lateral extension section 311 extends along the width direction of the base plate 1 and the longitudinal extension section 312 extends along the length direction of the base plate 1, the flow time of the coolant in the liquid channel 3 can be extended to improve the cooling or heating effect on the battery module. At the same time, the longitudinal extension section 312 is located on the side of the direct cooling diversion section so that the liquid channel 3 is more evenly distributed on the base plate 1, thereby improving the uniformity of heat distribution of the battery module.

[0089] In a preferred embodiment, refer to Figure 3The direct cooling inlet section includes a first direct cooling inlet section 41 and a second direct cooling inlet section 42 arranged opposite to each other. The direct cooling diversion section includes a plurality of first direct cooling diversion sections 43 connected end to end and a plurality of second direct cooling diversion sections 44 connected end to end. The first end of the outer first direct cooling diversion section 43 is connected to the end of the first direct cooling inlet section 41. The tail end of the inner first direct cooling diversion section 43 is connected to the first end of the direct cooling outlet section 45. The first end of the outer second direct cooling diversion section 44 is connected to the end of the second direct cooling inlet section 42. The tail end of the inner second direct cooling diversion section 44 is connected to the first end of the direct cooling outlet section 45.

[0090] It should be noted that multiple first direct cooling branch sections 43 connected end to end refer to the connection between the end of the outer first direct cooling branch section 43 and the beginning of the inner first direct cooling branch section 43 among two adjacent first direct cooling branch sections 43; multiple second direct cooling branch sections 44 connected end to end refer to the connection between the end of the outer second direct cooling branch section 44 and the beginning of the inner second direct cooling branch section 44 among two adjacent second direct cooling branch sections 44.

[0091] Specifically, when cooling the battery module, the refrigerant enters the first direct cooling inlet section 41 and the second direct cooling inlet section 42 through the direct cooling inlet 411. The refrigerant entering the first direct cooling inlet section 41 flows along the first direct cooling inlet section 41 and enters the first direct cooling diversion section 43 located on the outside. The refrigerant entering the first direct cooling diversion section 43 flows along the first direct cooling diversion section 43 and passes through multiple first direct cooling diversion sections 43 in sequence before entering the direct cooling outlet section 45. The refrigerant entering the second direct cooling inlet section 42 flows along the second direct cooling inlet section 42 and enters the second direct cooling diversion section 44 located on the outside. The refrigerant entering the second direct cooling diversion section 44 flows along the second direct cooling diversion section 44 and passes through multiple second direct cooling diversion sections 44 in sequence before entering the direct cooling outlet section 45. The refrigerant entering the direct cooling outlet section 45 flows along the direct cooling outlet section 45 and is finally discharged through the direct cooling outlet 451.

[0092] Furthermore, by setting the direct cooling inlet section to include a first direct cooling inlet section 41 and a second direct cooling inlet section 42, and setting the direct cooling diversion section to include a first direct cooling diversion section 43 and a second direct cooling diversion section 44, this application can shorten the flow path of the refrigerant in the direct cooling channel 4, thereby reducing the flow time of the refrigerant in the direct cooling channel 4 and ensuring the cooling effect on the battery module. On the other hand, it can enable the refrigerant to flow to various parts of the cold plate structure in a shorter time, thereby improving the cooling effect on the battery module.

[0093] The better one is to refer to Figure 3The direct cooling outlet section 45 is located in the middle of the width direction of the bottom plate 1. The first direct cooling inlet section 41 and the first direct cooling diversion section 43 are both located on one side of the direct cooling outlet section 45, and the second direct cooling inlet section 42 and the second direct cooling diversion section 44 are both located on the other side of the direct cooling outlet section 45, so that after the refrigerant enters the direct cooling channel 4, it first flows to both sides of the cold plate structure and then flows out of the direct cooling channel 4 at the middle position of the cold plate structure and returns to the air conditioning system.

[0094] Preferably, the cover plate 2 is provided with a direct cooling inlet 411 corresponding to the first direct cooling inlet section 41 and the second direct cooling inlet section 42, and the cover plate 2 is provided with a direct cooling outlet 451 corresponding to the direct cooling outlet section 45, so as to ensure that the refrigerant can enter the direct cooling channel 4.

[0095] Furthermore, refer to Figure 3 The two adjacent first direct cooling diversion sections 43 and / or second direct cooling diversion sections 44 are connected by a connecting section 433, and the first direct cooling diversion section 43 and / or second direct cooling diversion section 44 include a first direct cooling re-segment 431 and a second direct cooling re-segment 432.

[0096] Since the first direct cooling diversion section 43 and / or the second direct cooling diversion section 44 include the first direct cooling re-diversion section 431 and the second direct cooling re-diversion section 432, the refrigerant in the first direct cooling inlet section 41 and / or the second direct cooling inlet section 42 is diverted again into the first direct cooling re-diversion section 431 and the second direct cooling re-diversion section 432 to reduce the flow velocity of the refrigerant in the first direct cooling diversion section 43 and / or the second direct cooling diversion section 44, thereby increasing the flow time of the refrigerant in the direct cooling channel 4, increasing the time for the refrigerant to absorb heat from the battery module, and thus improving the cooling effect of the refrigerant on the battery module.

[0097] Preferably, two adjacent first direct cooling diversion sections 43 and second direct cooling diversion sections 44 are connected by a connecting section 433, and both the first direct cooling diversion section 43 and the second direct cooling diversion section 44 include a first direct cooling re-division section 431 and a second direct cooling re-division section 432.

[0098] It is understandable that one end of the connecting segment 433 corresponding to the first direct cooling diversion section 43 is connected to the tail end of the outermost first direct cooling diversion section 43 among the two adjacent first direct cooling diversion sections 43, and the other end of the connecting segment 433 is connected to the head end of the innermost first direct cooling diversion section 43 among the two adjacent first direct cooling diversion sections 43; one end of the connecting segment 433 corresponding to the second direct cooling diversion section 44 is connected to the tail end of the outermost second direct cooling diversion section 44 among the two adjacent second direct cooling diversion sections 44, and the other end of the connecting segment 433 is connected to the head end of the innermost second direct cooling diversion section 44 among the two adjacent second direct cooling diversion sections 44.

[0099] Furthermore, refer to Figure 3 The base plate 1 and the cover plate 2 are respectively provided with fixing holes 11. The first direct cooling diversion section 43 and the second direct cooling diversion section 44 are provided with a clearance structure 434 corresponding to the fixing holes 11, so that the first direct cooling diversion section 43 and the second direct cooling diversion section 44 are clearance from the fixing holes 11, so as to facilitate the fixing of the cold plate structure and avoid the phenomenon of refrigerant leakage caused by the fixing holes 11 connecting the first direct cooling diversion section 43 and the second direct cooling diversion section 44, so as to ensure the sealing of the direct cooling channel 4.

[0100] Specifically, multiple fixing holes 11 are arranged sequentially along the width direction of the cold plate structure, and all the fixing holes 11 are located at the middle position along the length direction of the cold plate structure.

[0101] This application does not specifically limit the avoidance structure 434. Preferably, the avoidance structure 434 is a converging segment connecting the first direct cooling re-segment 431 and the second direct cooling re-segment 432 located on both sides of the fixing hole 11. That is, the first direct cooling re-segment 431 and the second direct cooling re-segment 432 converge at the fixing hole 11 through the converging segment, and then separate after passing the fixing hole 11, so as to achieve avoidance between the first direct cooling re-segment 431 and the second direct cooling re-segment 432 and the fixing hole 11. In other embodiments, the avoidance structure 434 can also be a structure formed by bending the first direct cooling re-segment 431 and the second direct cooling re-segment 432 in a direction away from the fixing hole 11.

[0102] In other embodiments, both the direct cooling channel 4 and the liquid channel 3 are loop-shaped structures that extend circumferentially along the base plate 1 and then fold back to continue extending.

[0103] In a preferred embodiment, refer to Figure 3 The width of the liquid channel 3 is greater than the width of the direct cooling channel 4, and the width D1 of the liquid channel 3 satisfies: 15mm≤D1≤22mm. This ensures the pressure of the coolant in the liquid channel 3, thus ensuring the flow speed of the coolant in the liquid channel 3 and thereby ensuring the heating effect on the battery module. It also ensures the smooth flow of the coolant in the liquid channel 3.

[0104] In a preferred embodiment, the width of the liquid channel 3 is greater than the width of the direct cooling channel 4, and the width D2 of the direct cooling channel 4 satisfies: 5mm≤D2≤10mm. This ensures, on the one hand, the pressure of the refrigerant in the direct cooling channel 4, thereby ensuring the flow rate of the refrigerant in the direct cooling channel 4 and thus ensuring the cooling effect on the battery module. On the other hand, it ensures the smooth flow of the refrigerant in the direct cooling channel 4.

[0105] In a preferred embodiment, the channel area of ​​the liquid channel 3 is smaller than the channel area of ​​the direct cooling channel 4, and the sum of the channel area A1 of the liquid channel 3 and the channel area A2 of the direct cooling channel 4 is A, wherein A and A1 satisfy: 0.3≤A1 / A≤0.4, that is, A and A2 satisfy: 0.6≤A2 / A≤0.7.

[0106] It should be noted that the channel area of ​​liquid channel 3 refers to the projected area of ​​liquid channel 3 toward base plate 1, and the channel area of ​​direct cooling channel 4 refers to the projected area of ​​direct cooling channel 4 toward base plate 1.

[0107] As the driving range of new energy vehicles continues to increase, the temperature of the battery module will gradually increase, resulting in a greater cooling demand than heating demand. Therefore, setting the channel area of ​​liquid channel 3 to be smaller than that of direct cooling channel 4 can ensure both heating and cooling of the battery module. Setting A1 / A to greater than or equal to 0.3 and less than or equal to 0.4 can improve the cooling effect of the battery module while ensuring heating.

[0108] In a preferred embodiment, refer to Figure 3 The base plate 1 has a first end and a second end opposite to the first end in its own length direction. The direct cooling inlet 411, the direct cooling outlet 451 and the liquid inlet 313 are all located at the first end, and the liquid outlet 351 is located at the second end. The base plate 1 and / or the cover plate 2 are provided with reinforcing ribs 12 located at the second end. The reinforcing ribs 12 are located on both sides opposite to the liquid outlet section 35.

[0109] When installing the battery module, it will be made to avoid the cold plate structure along its length. This will result in gaps at the ends of the cold plate structure for the direct cooling channel 4 and the liquid channel 3. By setting a reinforcing rib 12 at the second end, the structural strength of the cold plate structure at the second end can be increased to avoid deformation at the second end of the cold plate structure and extend its service life.

[0110] This application does not specifically limit the formation method of the reinforcing rib 12. Preferably, the reinforcing rib 12 is formed by stamping the bottom plate 1 in a direction away from the cover plate 2, so as to reduce the production cost of the cold plate structure. In other embodiments, the reinforcing rib 12 may also be formed by stamping the cover plate 2 in a direction away from the bottom plate 1, or the reinforcing rib 12 may be a rib structure separately provided on the cover plate 2 or the bottom plate 1.

[0111] In a preferred embodiment, refer to Figure 1 , Figure 4 and Figure 5The direct cooling inlet 411, direct cooling outlet 451, liquid inlet 313 and liquid outlet 351 are all equipped with pipe joints 314 to facilitate the connection of the direct cooling channel 4 and liquid channel 3 with the corresponding pipelines of the new energy vehicle, thereby reducing the assembly difficulty of the cold plate structure.

[0112] This application does not specify the material for the cold plate structure. Preferably, the cold plate structure is made of aluminum alloy to reduce the production cost of the cold plate structure while ensuring the heating and cooling efficiency of the battery module, thereby reducing the production cost of new energy vehicles equipped with the cold plate structure of this application. In other embodiments, the cold plate structure may also be made of other composite materials with good thermal conductivity.

[0113] This application also discloses a vehicle that includes the cold plate structure as described above.

[0114] Because the vehicle in this application adopts the aforementioned cold plate structure, the bonding area between the cold plate structure and the battery module is increased while ensuring the heating efficiency of the battery module, thereby improving the connection stability between the cold plate structure and the battery module.

[0115] This application does not specify the installation location of the cold plate structure; it can be installed at the bottom of the battery module, or it can be located on the side or top of the battery module.

[0116] This application does not specify the type of vehicle; it can be a pure electric vehicle or a hybrid vehicle. For any aspects not mentioned in this application, existing technologies may be used or referenced.

[0117] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0118] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A cold plate structure, characterized by, The device includes a base plate (1), a cover plate (2) disposed on the base plate (1), and a heating element (5) disposed on the cover plate (2). An independent direct cooling channel (4) and a liquid channel (3) are formed between the base plate (1) and the cover plate (2). The heating element (5) is disposed opposite to the direct cooling channel (4). When the battery module is heated, the heating element (5) and / or the liquid flowing through the liquid channel (3) heat the battery module. When the battery module is cooled, the refrigerant flowing through the direct cooling channel (4) and / or the liquid flowing through the liquid channel (3) cools the battery module.

2. The cold plate structure of claim 1, wherein, The direct cooling channel (4) includes a direct cooling inlet section, a direct cooling branch section connected to the direct cooling inlet section, and a direct cooling outlet section (45) connected to the direct cooling branch section. Multiple direct cooling branch sections are provided at intervals. The liquid channel (3) includes a liquid inlet section, a liquid branch section connected to the liquid inlet section, and a liquid outlet section (35) connected to the liquid branch section. Multiple liquid branch sections are provided, and at least a portion of each liquid branch section is located between two adjacent direct cooling branch sections.

3. The cold plate structure of claim 2, wherein, The cover plate (2) has a direct cooling zone that is disposed opposite to the direct cooling diversion section, and the heating element (5) is disposed in the direct cooling zone and occupies 0.45-0.55 times the area of ​​the direct cooling zone.

4. The cold plate structure of claim 2, wherein, The liquid inlet section includes a first liquid inlet section (31) and a second liquid inlet section (32) disposed opposite to each other, and the liquid diversion section includes a first liquid diversion section (33) connected to the first liquid inlet section (31) and a second liquid diversion section (34) connected to the second liquid inlet section (32).

5. The cold plate structure of claim 4, wherein, The base plate (1) or the cover plate (2) is provided with a first connecting hole (21) corresponding to the first liquid inlet section (31) and the second liquid inlet section (32). The base plate (1) or the cover plate (2) is provided with a first protruding cover (22). The first protruding cover (22) and the base plate (1) or the cover plate (2) form a first connecting channel communicating with the first connecting hole (21). The base plate (1) or the cover plate (2) is provided with a liquid inlet (313) communicating with the first liquid inlet section (31) or the second liquid inlet section (32).

6. The cold plate structure of claim 4, wherein, The first liquid diversion section (33) and / or the second liquid diversion section (34) include a first liquid re-diversion section (331) and a second liquid re-diversion section (332) located inside the first liquid re-diversion section (331). The second liquid re-diversion section (332) is connected to the liquid outlet section (35). The first liquid re-diversion section (331) is connected to the liquid outlet section (35) through a connecting structure. The bottom plate (1) or the cover plate (2) is provided with a liquid outlet (351) connected to the liquid outlet section (35).

7. The cold plate structure of claim 6, wherein, The base plate (1) or the cover plate (2) is provided with a second connecting hole (24) corresponding to the first liquid re-segmentation (331) and the liquid outlet segment (35). The connecting structure includes a second convex cover (23) provided on the base plate (1) or the cover plate (2). The second convex cover (23) and the base plate (1) or the cover plate (2) form a second connecting channel communicating with the second connecting hole (24).

8. The cold plate structure of claim 4, wherein, The first liquid inlet section (31) and / or the second liquid inlet section (32) include a transverse extension section (311) extending along the width direction of the base plate (1) and a longitudinal extension section (312) extending along the length direction of the base plate (1), the longitudinal extension section (312) being arranged parallel to the first liquid diversion section (33).

9. The cold plate structure of claim 2, wherein, The direct cooling inlet section includes a first direct cooling inlet section (41) and a second direct cooling inlet section (42) arranged opposite to each other. The direct cooling diversion section includes a plurality of first direct cooling diversion sections (43) connected end to end and a plurality of second direct cooling diversion sections (44) connected end to end. The first end of the first direct cooling diversion section (43) located on the outer side is connected to the end of the first direct cooling inlet section (41). The tail end of the first direct cooling diversion section (43) located on the inner side is connected to the head of the direct cooling outlet section (45). The head of the second direct cooling diversion section (44) located on the outer side is connected to the end of the second direct cooling inlet section (42). The tail end of the second direct cooling diversion section (44) located on the inner side is connected to the head of the direct cooling outlet section (45).

10. The cold plate structure of claim 9, wherein, The two adjacent first direct cooling diversion sections (43) and / or second direct cooling diversion sections (44) are connected by a connecting section (433), and the first direct cooling diversion section (43) and / or second direct cooling diversion section (44) include a first direct cooling re-diversion section (431) and a second direct cooling re-diversion section (432).

11. A cold plate structure according to any one of claims 1-10, characterized in that The channel area of ​​the liquid channel (3) is smaller than that of the direct cooling channel (4).

12. A vehicle characterized by comprising: Includes the cold plate structure as described in any one of claims 1-11 above.

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