An integrated thermal management module and a battery system

Abstract

The present invention provides an integrated thermal management module and a battery system, relating to the technical field of batteries. The integrated thermal management module includes: a plurality of first components, which are made of conductive metal materials and are configured as hollow pipe types, having a first fluid channel, two ports, and connection holes, and the connection holes are connected to the battery cells; and at least one second component, which is made of insulating materials and is configured as a hollow pipe type, having a second fluid channel and two ports, the two ports of the second component communicate with the first components, the second component is arranged between the first components and is alternately connected to the first components, the second fluid channel and the first fluid channel form a communicating flow channel, and the ports of the first components not connected to the ports of the second component form the ports of the communicating flow channel. The present invention reduces the number of components, can reduce costs and improve assembly efficiency, has more reliable electrical conductivity, simplifies the structure, and improves the thermal management efficiency by directly exchanging heat with the battery cell tabs.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to an integrated thermal management module and a battery system. Background Art

[0002] Energy storage devices of electric vehicles include, but are not limited to, battery devices or systems, and effective temperature control is required to avoid abnormal operating conditions caused by abnormal temperatures, so as to ensure that the vehicle system always maintains reliable operating performance, avoid damage to vehicle equipment, and fully guarantee safety.

[0003] In addition, if the temperature change trend of the system cannot be responded to in a timely manner, it may also cause related alarms, etc., and affect the user experience.

[0004] Therefore, temperature control technology needs to be adopted to avoid the adverse effects of abnormal temperature states on energy storage devices, and to ensure reliable performance and safety in a long-term and stable manner. The power batteries of electric vehicles need temperature control. A known existing battery cooling solution is to set the busbar and the cooling plate as separate components respectively, resulting in low thermal management efficiency. Summary of the Invention

[0005] The present invention provides an integrated thermal management module and a battery system, which integrate the busbar and the cooling device, reduce the number of components, can reduce costs and improve assembly efficiency, and make the electrical conductivity more reliable, simplify the structure, achieve compactness, save space, and improve thermal management efficiency by directly exchanging heat with the electrode tabs of the battery cells.

[0006] According to one aspect of the present invention, there is provided an integrated thermal management module, comprising:

[0007] a plurality of first members, which are made of conductive metal materials and are configured as hollow pipe types, having a first fluid channel, two ports, and connection holes, and the connection holes are connected to the battery cells; and

[0008] at least one second member, which is made of insulating materials and is configured as a hollow pipe type, having a second fluid channel and two ports, and the two ports of the second member communicate with the first members,

[0009] the second member is disposed between the first members and is alternately connected to the first members, the second fluid channel and the first fluid channel form a communicating flow channel, and the ports of the first members that are not connected to the ports of the second member form the ports of the communicating flow channel.

[0010] Based on one aspect of the present invention, since the first member and the second member are hollow pipe-type, a connected heat medium fluid channel is formed, and the conductive first member is connected to the battery cell. That is to say, the first member has both the functions of conducting electricity and the circulation of the heat medium fluid. Therefore, the number of components is reduced, the cost can be lowered and the assembly efficiency can be improved, and the electrical conductivity is made more reliable, the structure is simplified, compactification is achieved, space is saved, and the heat management efficiency is improved by directly exchanging heat with the battery cell tab.

[0011] According to one aspect of the present invention, there is provided an integrated heat management module.

[0012] The first member is a heat-conducting pipe-type bus bar, and a graphene composite film is coated inside the first fluid channel.

[0013] The second member is an insulating heat-conducting pipe.

[0014] Based on one aspect of the present invention, materials such as graphene composite film are coated inside the first fluid channel. Compared with the metal material of the first member, the graphene composite film and other materials have higher heat conduction efficiency. By utilizing their excellent heat conduction performance, the heat exchange efficiency is further improved, and thus the heat management efficiency can be improved. Moreover, the first member is a heat-conducting pipe-type bus bar. In addition to realizing the electrical connection function, it also uses the heat medium fluid flowing therein to directly exchange heat with the battery cell tab, thereby improving the heat management efficiency.

[0015] According to one aspect of the present invention, there is provided an integrated heat management module.

[0016] The first member has two connection holes.

[0017] Based on one aspect of the present invention, through the electrical connection between the connection holes of the first member and the battery cell tab, the electrical connection of the battery system is realized, the number of components is reduced, the cost can be lowered and the assembly efficiency can be improved, and the electrical conductivity is made more reliable. At the same time, the structure is simplified, compactification is achieved, and space is saved. That is to say, by using the connection holes of the first member, not only the electrical connection is realized, but also the heat conduction connection with the heat exchange object is realized, and the heat management efficiency is improved by directly exchanging heat with the battery cell tab.

[0018] According to one aspect of the present invention, there is provided an integrated heat management module.

[0019] At least one port of the first member is located on the end side surface of the first member.

[0020] Based on one aspect of the present invention, by realizing the compact arrangement of the connected flow channels, the overall compactification of the system is promoted, and the number of components is reduced, the cost can be lowered and the assembly efficiency can be improved.

[0021] According to one aspect of the present invention, an integrated thermal management module is provided.

[0022] The two ports of the second component are located at the ends of the second component.

[0023] Based on one aspect of the present invention, since the second component is configured as a simple structure of a straight tube with both ends open, the component structure is further simplified, which is easy to manufacture and reduces costs, and the number of components is reduced, enabling the system cost to be reduced.

[0024] According to one aspect of the present invention, an integrated thermal management module is provided.

[0025] The fluid in the integrated thermal management module is a coolant.

[0026] Based on one aspect of the present invention, since the heat medium fluid is a coolant, it is easily available and inexpensive, which can reduce costs.

[0027] According to one aspect of the present invention, an integrated thermal management module is provided.

[0028] The connection hole is electrically connected to the cell tab through laser welding;

[0029] The two ports of the second component communicate with the first component through ultrasonic or laser welding.

[0030] Based on one aspect of the present invention, reliable connection and fixation through ultrasonic or laser welding and other methods can reduce costs.

[0031] According to one aspect of the present invention, an integrated thermal management module is provided.

[0032] The cell tab and the heat-conducting tube busbar are configured as an integrated structure.

[0033] Based on one aspect of the present invention, since the cell tab and the heat-conducting tube busbar are configured as an integrated structure, the number of components is reduced, which can reduce costs and improve assembly efficiency, and make the electrical conductivity more reliable, simplify the structure, achieve compactness, save space, and promote direct heat exchange with the cell tab, improving the thermal management efficiency.

[0034] According to one aspect of the present invention, a battery system is provided, including:

[0035] At least one integrated thermal management module of the above aspects of the present invention;

[0036] A fluid inlet and a fluid outlet, respectively connected to the ports of the communication flow channel of the integrated thermal management module;

[0037] A first terminal and a second terminal, which are electrically connected to corresponding first components in the integrated thermal management module respectively; and

[0038] A temperature controller, which receives the temperature detection signal of the battery system and controls the flow of the fluid flowing through the communication channel through a valve or a pump system, etc., according to the temperature detection signal.

[0039] Based on one aspect of the present invention, through the integrated thermal management module of the present invention, the electrical connection method and heat exchange method in the battery system are realized, while simplifying the device structure, improving the functional reliability, realizing compactness, saving space, and improving the thermal management efficiency through direct heat exchange. That is to say, the introduction and export of the heat medium fluid are realized with a simple structure, the flow of the heat medium fluid is controlled by the temperature controller, and then the dynamic control of the heat exchange is realized, so as to realize efficient system temperature control and effectively reduce the cost.

[0040] According to one aspect of the present invention, a battery system is provided.

[0041] Comprising a plurality of integrated thermal management modules, and the plurality of integrated thermal management modules are connected in series or in parallel.

[0042] Based on one aspect of the present invention, through the combined connection of a plurality of integrated thermal management modules in series or in parallel, the performance and application of the battery system are further expanded, while realizing efficient system temperature control and effectively reducing the cost. Description of the Drawings

[0043] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0044] Figure 1 It is a schematic perspective view showing the integrated thermal management module of the present invention and also a schematic perspective view showing the battery system of the present invention.

[0045] Figure 2 It is one of the schematic perspective views showing the first component.

[0046] Figure 3 It is another schematic perspective view showing the first component.

[0047] Figure 4 It is a schematic perspective view showing the second component.

[0048] Figure 5One of the schematic perspective views showing the battery system of the present invention.

[0049] Figure 6 Another schematic perspective view showing the battery system of the present invention.

[0050] Reference numerals

[0051] 1: First member; 2: Second member; 7: Connection hole; 9: Battery cell; A: First port; C: Second port; D: Third port; 3: Integrated thermal management module; P1: First terminal; P2: Second terminal; C in : Fluid inlet; C out : Fluid outlet. Detailed implementation manners

[0052] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without making creative efforts fall within the scope of protection of the present invention.

[0053] The following describes the implementation manners of the present invention with reference to the accompanying drawings.

[0054] Figure 1 It is a schematic perspective view showing the integrated thermal management module 3 of the present invention and also a schematic perspective view showing the battery system of the present invention. As Figure 1 shown, the integrated thermal management module 3 includes: a first member 1, a second member 2, and a battery cell 9.

[0055] The first member 1 is a heat-conducting tubular busbar made of conductive metal.

[0056] The first member 1 is of a hollow pipe type, having a first fluid passage and two ports, as well as a connection hole 7, and the connection hole 7 is electrically connected to the battery cell.

[0057] In one structure, the two ports of the first member 1 are respectively: a positive first port A and a lateral second port C.

[0058] As Figure 2 shown, the first port A of the first member 1 is located at an end face of one end in the long dimension direction of the generally rectangular first member 1, and the second port C of the first member 1 is located on a side face of the other end in the long dimension direction of the first member 1, and the end face of the other end is closed.

[0059] In another structure, the two ports of the first member 1 are respectively two side-positioned second ports C. These two second ports C are open on the same long side of the generally rectangular first member 1, and the respective adjacent front end faces are closed.

[0060] The second member 2 is an insulating heat-conducting tube made of an insulating material.

[0061] The second member 2 is of a hollow pipe type, having a second fluid passage and two ports. The two ports of the second member communicate with the first member.

[0062] The two ports of the second member 2 are respectively front-positioned ports, namely the third ports D. These two third ports D are respectively located at the end faces at both ends in the long dimension direction of the generally rectangular second member 2. That is to say, these two third ports D are open at both ends of the second fluid passage of the hollow pipe type second member 2.

[0063] As Figure 1 shown, the second member 2 is disposed between the first members 1 and is alternately connected to the first member 1. Through the above-mentioned second ports C and third ports D, the first fluid passages of the respective first members 1 are communicated with the second fluid passages of the respective second members 2, forming a communication flow path of the integrated heat management module 3 for the heat medium fluid to pass through.

[0064] The first port A of the first member 1 is not connected to the third port D of the second member 2. The first port A of the first member 1 forms the port of the above-mentioned communication flow path and is communicated with the fluid inlet C in and the fluid outlet C out of the battery system. And the integrated heat management module 3 is electrically connected to the terminal of the battery system through the connection hole 7 on the side of the first port A of the first member 1.

[0065] Since the first member 1 and the second member 2 are of a hollow pipe type, a connected heat medium fluid passage is formed, and the conductive first member 1 is connected to the battery cell 9. That is to say, the first member 1 simultaneously has the functions of conducting electricity and allowing the heat medium fluid to flow through. Therefore, the number of components is reduced, the cost can be reduced and the assembly efficiency can be improved, and the electrical conductivity performance is more reliable, the structure is simplified, compactification is achieved, space is saved, and the heat management efficiency is improved by directly exchanging heat with the battery cell tab.

[0066] By coating materials such as graphene composite film inside the first fluid passage of the hollow pipe type first member 1, the heat conduction efficiency is further improved. The graphene composite film is, for example, a graphene boron nitride heat dissipation film. And the graphene boron nitride heat dissipation film, as an insulating heat-conducting material, also has an insulating isolation function, can prevent the loss of transmitted electric energy due to the heat medium fluid, and at the same time ensures the safety of electric energy transmission and use.

[0067] Inside the first fluid channel, materials such as graphene composite membranes are coated. Compared with the metal materials of the first component 1, materials such as graphene composite membranes have higher thermal conductivity efficiency. Utilizing their excellent thermal conductivity performance, the heat exchange efficiency is further improved, and thus the thermal management efficiency can be enhanced. Moreover, the first component 1 is a heat-conducting tube busbar. In addition to realizing the electrical connection function, it also uses the heat medium fluid flowing through it to directly conduct heat exchange with the cell tab, thereby enhancing the thermal management efficiency.

[0068] As Figure 1 shown, the first component 1 has two connection holes. That is, the first component 1 has two connection holes 7 for electrical connection. The connection holes 7 are specifically described as follows.

[0069] As described above, in one connection method, the connection hole 7 on the first port A side of the first component 1 is electrically connected to the terminal of the battery system, and the other connection hole 7 is electrically connected to the cell tab.

[0070] In another connection method, the two connection holes 7 of the first component 1 are electrically connected to one tab of each of two different adjacent cells 9 respectively. That is, one first component 1 connects two cells 9.

[0071] Through the electrical connection between the connection hole 7 of the first component 1 and the cell tab, the electrical connection of the battery system is realized, the number of components is reduced, the cost can be lowered and the assembly efficiency can be improved, and the electrical conductivity is made more reliable. At the same time, the structure is simplified to achieve compactness and space is saved. That is to say, by using the connection hole 7 of the first component 1, not only the electrical connection is realized, but also the thermal connection with the heat exchange object is realized, and the thermal management efficiency is enhanced by directly conducting heat exchange with the cell tab.

[0072] As Figure 1 and Figure 2 shown, at least one port of the first component 1 is located on the end side surface of the first component 1. The two ports of the second component 2 are located at the ends of the second component 2.

[0073] Since the second component 2 is constructed into a simple structure of a straight tube with both ends open, the component structure is further simplified, it is easy to manufacture and the cost is reduced, and the number of components is reduced, which can reduce the system cost.

[0074] As described above, one second component 2 is arranged between two first components 1. That is, this one second component 2 connects two first components 1 that are respectively electrically connected to two tabs of the same cell through the connection holes 7. In this way, as described above, the second component 2 and the first component 1 are alternately connected, and through the above-mentioned second port C and third port D, the first fluid channels of each first component 1 are communicated with the second fluid channels of each second component 2 to form a communication flow channel of the integrated thermal management module 3 for the heat medium fluid to pass through.

[0075] By implementing a compact layout of the connected flow channels, the overall compactness of the system is promoted, the number of components is reduced, the cost can be lowered, and the assembly efficiency can be improved.

[0076] The fluid in the above-mentioned integrated thermal management module can be a coolant such as an aqueous ethylene glycol solution.

[0077] Since the heat transfer medium fluid is a coolant, it is easy to obtain and inexpensive, which can reduce the cost.

[0078] The above-mentioned connection hole 7 is electrically connected to the electrode tab of the battery cell by laser welding.

[0079] Two third ports D of a second member 2 communicate with one second port C of each of the two first members 1 through ultrasonic or laser welding, that is, the first fluid channel of each first member 1 is communicated with the second fluid channel of the second member 2.

[0080] Reliable connection and fixation by means such as ultrasonic or laser welding can reduce the cost.

[0081] The electrode tab of the battery cell and the heat-conducting tube busbar are constructed as an integrated structure.

[0082] That is, in the present invention, by constructing the first member 1, i.e., the heat-conducting tube busbar, and the electrode tab of the battery cell as an integrated structure, the number of components is reduced, the cost can be lowered, the assembly efficiency can be improved, the electrical conductivity is made more reliable, the structure is simplified, compactness is achieved, space is saved, and direct heat exchange with the electrode tab of the battery cell is promoted, thereby improving the thermal management efficiency.

[0083] The battery system of the present invention includes at least one integrated thermal management module 3.

[0084] For example, the battery system includes: an integrated thermal management module 3 and a temperature controller (not shown). The structure of the integrated thermal management module 3 is as described above. The integrated thermal management module 3 includes a plurality of battery cells 9, and each battery cell 9 has two electrode tabs. Figure 1 In the example, there are 5 battery cells 9, so there are 6 first members 1, i.e., the heat-conducting tube busbars, connected in series, and at the same time, there are 5 second members 2, i.e., insulating heat-conducting tubes, connected between the above 6 first members 1. That is, the 6 first members 1 and the 5 second members 2 are alternately connected, and through the above-mentioned second port C and third port D, the first fluid channel of each first member 1 is communicated with the second fluid channel of each second member 2, forming a connected flow channel of the integrated thermal management module 3 for the heat transfer medium fluid to pass through.

[0085] As described above, Figure 1FIG. 0 is a schematic perspective view showing the integrated thermal management module 3 of the present invention, and is also a schematic perspective view showing the battery system of the present invention. That is to say, the battery system in this example includes only one integrated thermal management module 3. In addition, the first terminal P1 and the second terminal P2 of the battery system are electrically connected to the connection holes 7 on the A side of the first ports of the two first members 1 of the one integrated thermal management module 3, respectively.

[0086] In addition, the first ports A of the two first members 1 of the one integrated thermal management module 3 are respectively connected to the fluid inlet C of the battery system in and the fluid outlet C out in communication.

[0087] In this example, the battery system further includes a temperature controller (not shown). The temperature controller receives the temperature detection signal of the battery system, and according to the temperature detection signal, controls the flow of the heat medium fluid flowing through the communication flow path through a valve or a pump system, etc., so as to realize the dynamic control of heat exchange, thereby realizing efficient system temperature control and effectively reducing costs.

[0088] Thus, through the integrated thermal management module 3 of the present invention, the electrical connection method and the heat exchange method in the battery system are realized, while simplifying the system structure, improving the system reliability, realizing compactness, saving space, and improving the thermal management efficiency through direct heat exchange. That is to say, the introduction and export of the heat medium fluid are realized with a simple structure, and the flow of the heat medium fluid is controlled by the temperature controller, so as to realize the dynamic control of heat exchange, thereby realizing efficient system temperature control and effectively reducing costs.

[0089] In addition, as Figure 5 shown, in another example, the battery system of the present invention includes two integrated thermal management modules 3 (it should be noted that sometimes the reference numerals of each part are appropriately omitted in each figure). As Figure 5 shown, these two integrated thermal management modules 3 are connected in parallel, and the meaning of this parallel connection can include but is not limited to the parallel connection of both the circuit and the flow path. An example of the parallel connection of both the circuit and the flow path is shown in Figure 5 .

[0090] The parallel connection of the circuit is also realized by the electrical connection of the connection holes 7 on the A side of the corresponding first ports of the two first members 1 in the two integrated thermal management modules 3, that is, the two sets of connection holes 7 that respectively form a parallel relationship are electrically connected to the first terminal P1 and the second terminal P2 of the battery system. In addition, the parallel connection of the flow path is realized by the corresponding first ports A of the corresponding first members 1 in the two integrated thermal management modules 3 being respectively grouped and corresponding to the fluid inlet C of the battery system in and the fluid outlet C outIt is realized by connecting them separately, and the consistent flow direction of the fluid in the parallel flow path can be ensured by a pump system or the like.

[0091] In this example, the battery system also includes a temperature controller (not shown). The temperature controller receives the temperature detection signal of the battery system. According to the temperature detection signal, it controls the flow of the heat medium fluid flowing through the connecting flow channel through a valve or a pump system or the like, and then realizes the dynamic control of heat exchange, thereby realizing efficient system temperature control and effectively reducing costs.

[0092] In the battery system of this example, similarly to the above example, each integrated thermal management module 3 includes a plurality of battery cells 9, and each battery cell 9 has two tab ears respectively. In this example, an integrated thermal management module 3 also includes 5 battery cells 9. Therefore, it corresponds to 6 first components 1, namely the heat-conducting tube-shaped busbars, which are connected in series electrically, and at the same time corresponds to 5 second components 2, namely the insulating heat-conducting tubes, which are connected between the above 6 first components 1. That is, the 6 first components 1 and the 5 second components 2 are alternately connected, and through the above-mentioned second port C and third port D, the first fluid channels of the respective first components 1 are connected to the second fluid channels of the respective second components 2 to form a connecting flow channel of the integrated thermal management module 3 for the heat medium fluid to pass through.

[0093] Thus, through the integrated thermal management module 3 of the present invention, the electrical connection method and heat exchange method in the battery system are realized. At the same time, the system structure is simplified, the system reliability is improved, the system is compacted, space is saved, and through direct heat exchange, the thermal management efficiency is improved. That is to say, the introduction and export of the heat medium fluid are realized with a simple structure, the flow of the heat medium fluid is controlled by the temperature controller, and then the dynamic control of heat exchange is realized, thereby realizing efficient system temperature control and effectively reducing costs.

[0094] As Figure 6 shown, in another example, the battery system of the present invention includes two integrated thermal management modules 3. As Figure 6 shown, these two integrated thermal management modules 3 are connected in series, and the meaning of this series connection can include but is not limited to the series connection of both the circuit and the flow path. An example of the series connection of both the circuit and the flow path is shown in Figure 6 .

[0095] The series connection of the circuits is also achieved through the electrical connection of the connection holes 7 on the A side of the corresponding first components 1 in the two integrated thermal management modules 3, and the two integrated thermal management modules 3 in series connection of the circuits are further electrically connected to the first terminal P1 and the second terminal P2 of the battery system through the connection holes 7 on the A side of the two first components 1 that are not connected to each other. In addition, the series connection of the flow paths is achieved through the communication of the corresponding two first ports A of the two first components 1 in the two integrated thermal management modules 3, and the two integrated thermal management modules 3 with the series-connected flow paths are further connected to the fluid inlet C of the battery system through the first ports A of the first components 1 at both ends of the series-connected flow path. in and the fluid outlet C out respectively. Here, a pump system can also be used to ensure the fluid flow in the longer flow path after series connection. For example, an electric pump can be set at an appropriate position in the flow path, and the illustration is omitted.

[0096] In this example, the battery system also includes a temperature controller (not shown). The temperature controller receives the temperature detection signal of the battery system and controls the flow of the heat medium fluid flowing through the connected flow channel according to the temperature detection signal through a valve or a pump system, etc., so as to realize the dynamic control of heat exchange, thereby realizing efficient system temperature control and effectively reducing costs.

[0097] In the battery system of this example, similar to the above example, each integrated thermal management module 3 includes a plurality of battery cells 9, and each battery cell 9 has two tab ears respectively. In this example, an integrated thermal management module 3 also includes 5 battery cells 9. Therefore, it corresponds to 6 first components 1 connected in series electrically, that is, the heat-conducting tube-shaped busbars, and at the same time corresponds to 5 second components 2 connected between the above 6 first components 1, that is, the insulating heat-conducting tubes. That is, the 6 first components 1 and the 5 second components 2 are alternately connected, and through the above second port C and third port D, the first fluid channels of the respective first components 1 are communicated with the second fluid channels of the respective second components 2 to form a connected flow channel of the integrated thermal management module 3 for the heat medium fluid to pass through.

[0098] Thus, through the integrated thermal management module 3 of the present invention, the electrical connection method and heat exchange method in the battery system are realized, while simplifying the system structure, improving the system reliability, achieving compactness, saving space, and enhancing the thermal management efficiency through direct heat exchange. That is to say, the introduction and export of the heat medium fluid are realized with a simple structure, the flow of the heat medium fluid is controlled by a temperature controller, and then the dynamic control of heat exchange is realized, thereby realizing efficient system temperature control and effectively reducing costs.

[0099] In addition, through a combination of series and parallel connections, the performance and applications of the battery system are further expanded. At the same time, efficient system temperature control is achieved, and costs are effectively reduced.

[0100] In addition, through a combination of series and parallel connections, the flexibility of the arrangement of components in the battery system is also improved, thereby enabling the battery system to better adapt to the installation environment.

[0101] Although in the above embodiments, the implementation modes in which the battery system is composed of one or two integrated thermal management modules 3 have been described, the present invention is not limited thereto. For example, the battery system can also be composed of three or more integrated thermal management modules 3 connected in parallel or in series to further expand performance and applications, and be controlled by a shared single temperature controller to achieve efficient system temperature control. Moreover, through an intensive and efficient control method, the usage cost is effectively reduced. According to specific application requirements, the battery system can of course also be composed of only one integrated thermal management module 3 as described above.

[0102] It should be noted that Figure 5 、 Figure 6 As an example, it does not limit the implementation modes of series or parallel connections. For specific series or parallel connection modes, the arrangement of battery cells in the battery system certainly takes into account factors such as polarity. In addition, the setting modes shown in the figures can of course be appropriately deformed. For example, the connection settings of the fluid inlet C in and the fluid outlet C out can be exchanged, etc.

[0103] The temperature controller can be implemented by hardware, such as using a CPU, various control circuits, etc. In addition, the above-mentioned pump system can include an electric pump, etc. In one embodiment, an electric pump connected to the communication flow channel is provided, and the temperature controller controls the electric pump to control the flow state of the heat transfer medium fluid flowing through the communication flow channel, thereby achieving dynamic control of heat exchange.

[0104] Of course, the temperature controller can also be implemented by software and obtain equally effective control effects. Or, according to specific application requirements, it can also be implemented by a combination of software and hardware.

[0105] In one embodiment, the temperature controller is connected to the temperature sensors in the battery system and directly controls the working state of the electric pump, etc. according to the detected temperature, thereby achieving dynamic control of heat exchange.

[0106] In addition, it should be noted that the heat transfer medium fluid is not limited to the coolant. That is to say, the integrated thermal management module of the present invention is not limited to the cooling application scenario. High temperatures and low temperatures outside the normal operating conditions will pose challenges to the performance of the vehicle system.

[0107] For example, the power battery of an electric vehicle has problems of reduced performance under low-temperature conditions and has a relatively high risk of damage, affecting safety and the long-term life of the system. Therefore, temperature control technology needs to be adopted to avoid the adverse effects of the low-temperature environment on energy storage devices.

[0108] In one embodiment, a heat source such as a heating resistance wire is provided to heat the heat transfer medium fluid, and then through the heat exchange of the heat transfer medium fluid, it cooperates with other battery heating methods to further promote the rapid heating of the battery system.

[0109] It should be noted that since the technical solution of the present invention integrates the busbar and the cooling device, the heat transfer medium fluid can directly exchange heat with the electrode tabs of the battery cells, promoting the efficient thermal management of the battery system. In one embodiment, the power supply for the heating resistance wire and the like can utilize the usual vehicle battery.

[0110] In addition, the coolant, as the heat transfer medium fluid, is not only easily available but also has the advantages of safety and reliability. In the scenario of cooling applications, the used heat transfer medium fluid can be cooled by a conventional air-cooling method and recycled through a pump system.

[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated thermal management module, characterized in that, Comprising: A plurality of first components, which comprise a conductive metal material and are configured as hollow pipe-like structures, having a first fluid channel, two ports, and connection holes. The connection holes are electrically connected to the battery cell tabs by laser welding. The first component is a heat-conducting pipe-shaped busbar, and the heat transfer medium fluid flowing through the heat-conducting pipe-shaped busbar directly exchanges heat with the battery cell tabs; And At least one second component, which comprises an insulating material and is configured as a hollow pipe-like structure, having a second fluid channel and two ports. The two ports of the second component communicate with the first component; The second component is disposed between the first components and is alternately connected to the first components. The second fluid channel and the first fluid channel form a communicating flow channel. The ports of the first component that are not connected to the ports of the second component form the ports of the communicating flow channel. The inside of the first fluid channel is coated with a graphene composite film.

2. The integrated thermal management module according to claim 1, wherein: The second component is an insulating heat-conducting pipe.

3. The integrated thermal management module according to claim 1, wherein: The first component has two of the connection holes.

4. The integrated thermal management module according to claim 1, wherein: At least one port of the first component is located on the end side surface of the first component.

5. The integrated thermal management module according to claim 1, wherein: The two ports of the second component are located at the ends of the second component.

6. The integrated thermal management module according to claim 1, wherein: The fluid in the integrated thermal management module is a coolant.

7. The integrated thermal management module according to claim 2, wherein: The two ports of the second component communicate with the first component by ultrasonic or laser welding.

8. The integrated thermal management module according to claim 7, wherein: The battery cell tab and the heat-conducting pipe-shaped busbar are configured as an integrated structure.

9. A battery system, characterized in that, Comprising: At least one integrated thermal management module according to any one of claims 1 to 8; A fluid inlet and a fluid outlet, respectively connected to the ports of the communicating flow channel of the integrated thermal management module; A first terminal and a second terminal, respectively electrically connected to the corresponding first components in the integrated thermal management module; And A temperature controller, which receives the temperature detection signal of the battery system and controls the flow of the fluid flowing through the communicating flow channel according to the temperature detection signal.

10. The battery system according to claim 9, wherein: It comprises a plurality of the integrated thermal management modules, and the plurality of integrated thermal management modules are connected in series or in parallel.

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