Battery module, battery pack and new energy automobile

Abstract

The embodiment of the utility model provides a battery module, a battery pack and a new energy automobile, and relates to the technical field of power batteries. The battery module comprises a liquid cooling assembly and a module unit, the liquid cooling assembly comprises a first liquid cooling pipe, a second liquid cooling pipe and a liquid cooling plate, the first liquid cooling pipe and the second liquid cooling pipe are arranged at an interval, and the two ends of the liquid cooling plate are connected with the first liquid cooling pipe and the second liquid cooling pipe respectively; a module assembly space is formed among the first liquid cooling pipe, the second liquid cooling pipe and the liquid cooling plate; at least part of the module unit is arranged in the module assembly space and attached to the liquid cooling plate, one end of the module unit is connected with the joint of the first liquid cooling pipe and the liquid cooling plate, and the other end of the module unit is connected with the joint of the second liquid cooling pipe and the liquid cooling plate. According to the battery module, the use of structural members and fasteners can be reduced, the assembly efficiency is improved, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to power battery technical field, specifically, relate to a battery module, battery pack and new energy vehicle. BACKGROUND

[0002] With the rapid development of new energy vehicles, power battery industry also develops rapidly, and battery module as the power source of new energy vehicles is also paid more and more attention. For the existing battery module, currently usually adopts the different structural members and fasteners such as clamping plate, end plate, long screw rod, is assembled into structural frame through welding etc., then is assembled with the electric core etc.

[0003] However, the battery module adopts this assembly setting, and the structural member and fastener are more, leading to low assembly efficiency, cost increase. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a battery module, battery pack and new energy vehicle, which can reduce the use of structural member and fastener, improve assembly efficiency and reduce cost.

[0005] The embodiment of the utility model is realized as follows:

[0006] Firstly, the utility model provides a battery module, which comprises:

[0007] Liquid cooling assembly, the liquid cooling assembly comprises first liquid cooling pipe, second liquid cooling pipe and liquid cooling plate, the first liquid cooling pipe is spaced apart with the second liquid cooling pipe, and both ends of the liquid cooling plate are connected with the first liquid cooling pipe and the second liquid cooling pipe, and module assembly space is formed between the first liquid cooling pipe, the second liquid cooling pipe and the liquid cooling plate;And

[0008] Module unit, at least part of the module unit is arranged in the module assembly space, and is attached to the liquid cooling plate, one end of the module unit is connected with the connection of the first liquid cooling pipe and the liquid cooling plate, and the other end of the module unit is connected with the connection of the second liquid cooling pipe and the liquid cooling plate.

[0009] In an optional embodiment, the first liquid cooling pipe comprises first liquid cooling main pipe and first liquid cooling branch pipe connected, the second liquid cooling pipe comprises second liquid cooling main pipe and second liquid cooling branch pipe connected;The first liquid cooling main pipe and the second liquid cooling main pipe are spaced apart along the first direction, and the first liquid cooling main pipe is extended along the second direction, and the second liquid cooling main pipe is spaced apart along the second direction;

[0010] The liquid cooling plate is spaced apart from the first liquid cooling main pipe and the second liquid cooling main pipe along a third direction, the first liquid cooling branch pipe is located on a side of the first liquid cooling main pipe close to the liquid cooling plate, the second liquid cooling branch pipe is located on a side of the second liquid cooling main pipe close to the liquid cooling plate, and two ends of the liquid cooling plate are connected with the first liquid cooling branch pipe and the second liquid cooling branch pipe respectively;

[0011] One end of the module unit is connected with the connection of the first liquid cooling branch pipe and the liquid cooling plate, and the other end of the module unit is connected with the connection of the second liquid cooling branch pipe and the liquid cooling plate; the first direction, the second direction and the third direction are perpendicular to each other.

[0012] In an optional embodiment, the number of the first liquid cooling branch pipe, the second liquid cooling branch pipe, the liquid cooling plate and the module unit is multiple, multiple first liquid cooling branch pipes are spaced apart along the second direction, multiple second liquid cooling branch pipes are spaced apart along the second direction, and correspond to multiple first liquid cooling branch pipes one by one;

[0013] Multiple liquid cooling plates correspond to multiple first liquid cooling branch pipes or multiple second liquid cooling branch pipes one by one, and multiple module units correspond to multiple liquid cooling plates one by one.

[0014] In an optional embodiment, the first liquid cooling pipe and the second liquid cooling pipe are spaced apart along a first direction, the module unit includes a first clamping plate, a second clamping plate, a first battery pack and a second battery pack, the first clamping plate and the second clamping plate are spaced apart along a second direction, the first battery pack and the second battery pack are spaced apart along a third direction and are located between the first clamping plate and the second clamping plate, and the first clamping plate and the second clamping plate are respectively used for fixing two ends of the first battery pack and respectively used for fixing two ends of the second battery pack;

[0015] The liquid cooling plate is located between the first battery pack and the second battery pack, and two sides of the liquid cooling plate are respectively attached to the first battery pack and the second battery pack, and the first battery pack is located in the module assembly space; one end of the first clamping plate and one end of the second clamping plate are connected with the connection of the first liquid cooling pipe and the liquid cooling plate, and the other end of the first clamping plate and the other end of the second clamping plate are connected with the connection of the second liquid cooling pipe and the liquid cooling plate; the first direction, the second direction and the third direction are perpendicular to each other.

[0016] In an optional embodiment, the first battery pack comprises a plurality of first battery cells arranged in sequence along the first direction, the first clamping plate is provided with a plurality of first mounting slots, the second clamping plate is provided with a plurality of second mounting slots, the plurality of first mounting slots correspond to the plurality of second mounting slots one by one, the plurality of first battery cells correspond to the plurality of first mounting slots or the plurality of second mounting slots one by one, and two ends of the first battery cell are arranged in the first mounting slot and the second mounting slot respectively.

[0017] The second battery pack comprises a plurality of second battery cells arranged in sequence along the first direction, the first clamping plate is further provided with a plurality of third mounting slots, the second clamping plate is further provided with a plurality of fourth mounting slots, the plurality of third mounting slots correspond to the plurality of fourth mounting slots one by one, the plurality of second battery cells correspond to the plurality of third mounting slots or the plurality of fourth mounting slots one by one, and two ends of the second battery cell are arranged in the third mounting slot and the fourth mounting slot respectively.

[0018] In an optional embodiment, the module unit further comprises a first bus bar and a second bus bar, the first bus bar is arranged on a side of the first clamping plate away from the second clamping plate, and the second bus bar is arranged on a side of the second clamping plate away from the first clamping plate.

[0019] The first bus bar is used in cooperation with the second bus bar to connect the plurality of first battery cells and the plurality of second battery cells in series or in parallel.

[0020] In an optional embodiment, the first clamping plate is provided with a first clamping slot, the second clamping plate is provided with a second clamping slot, and two ends of the liquid cooling plate are arranged in the first clamping slot and the second clamping slot respectively.

[0021] In an optional embodiment, the liquid cooling assembly further comprises an inlet pipe and an outlet pipe, the inlet pipe is connected with the first liquid cooling pipe, and the outlet pipe is connected with the second liquid cooling pipe.

[0022] In a second aspect, the utility model provides a battery pack, comprising the battery module of any one of preceding embodiments.

[0023] In a third aspect, the utility model provides a new energy automobile, comprising the battery pack of preceding embodiments.

[0024] The beneficial effects of the embodiments of the utility model include:

[0025] The battery module comprises a liquid cooling assembly and a module unit, the liquid cooling assembly comprises a first liquid cooling pipe, a second liquid cooling pipe and a liquid cooling plate, the first liquid cooling pipe and the second liquid cooling pipe are arranged at intervals, and the two ends of the liquid cooling plate are connected with the first liquid cooling pipe and the second liquid cooling pipe respectively, and a module assembly space is formed between the first liquid cooling pipe, the second liquid cooling pipe and the liquid cooling plate; at least part of the module unit is arranged in the module assembly space and is attached to the liquid cooling plate, one end of the module unit is connected with the connection part of the first liquid cooling pipe and the liquid cooling plate, and the other end of the module unit is connected with the connection part of the second liquid cooling pipe and the liquid cooling plate.

[0026] That is, by arranging the module assembly space in the liquid cooling assembly, the module unit can be conveniently installed; one end of the module unit can be connected and fixed with the connection part of the first liquid cooling pipe and the liquid cooling plate, and the other end of the module unit can be connected and fixed with the connection part of the second liquid cooling pipe and the liquid cooling plate, and it is easy to understand that the liquid cooling assembly can provide the module unit with the function of liquid cooling and heat dissipation, and also can act as a structural part or a fastener to be connected and fixed with the module unit, thereby reducing the use of structural parts and fasteners, improving the assembly efficiency and reducing the cost.

[0027] The battery pack comprises the battery module, which has all the beneficial effects of the battery module.

[0028] The new energy vehicle comprises the battery pack, which has all the beneficial effects of the battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0030] Figure 1 The structure of the new energy vehicle provided by the embodiments of the present application is shown in the structure diagram of the new energy vehicle provided by the embodiments of the present application.

[0031] Figure 2 The structure of the battery module provided by the embodiments of the present application is shown in the structure diagram of the battery module provided by the embodiments of the present application.

[0032] Figure 3 The explosion diagram of the battery module provided by the embodiments of the present application is shown in the explosion diagram of the battery module provided by the embodiments of the present application.

[0033] Figure 4 The structure of the liquid cooling assembly provided by the embodiments of the present application is shown in the structure diagram of the liquid cooling assembly provided by the embodiments of the present application.

[0034] Figure 5 The explosion diagram of the module unit provided by the embodiments of the present application is shown in the explosion diagram of the module unit provided by the embodiments of the present application.

[0035] Icon: 1000 - new energy vehicle; 1100 - battery pack; 100 - battery module; 10 - liquid cooling assembly; 11 - first liquid cooling pipe; 111 - first liquid cooling main pipe; 112 - first liquid cooling branch pipe; 12 - second liquid cooling pipe; 121 - second liquid cooling main pipe; 122 - second liquid cooling branch pipe; 13 - liquid cooling plate; 14 - liquid inlet pipe; 15 - liquid outlet pipe; 20 - module assembly space; 30 - module unit; 31 - first clamping plate; 311 - first mounting groove; 312 - third mounting groove; 313 - first clamping groove; 32 - second clamping plate; 321 - second mounting groove; 322 - fourth mounting groove; 323 - second clamping groove; 33 - first battery pack; 331 - first battery cell; 34 - second battery pack; 341 - second battery cell; 35 - first busbar; 351 - first busbar sheet; 36 - second busbar; 361 - second busbar sheet; 1200 - vehicle body. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0038] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0039] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0040] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] As described in the background section, current battery modules typically employ various structural components and fasteners, such as clamps, end plates, and long screws, which are welded together to form a structural frame before being assembled with battery cells and other components. However, this assembly method results in a large number of structural components and fasteners, leading to low assembly efficiency and increased costs.

[0043] Based on this, please refer to Figures 1-5 The present invention provides a battery module 100, a battery pack 1100, and a new energy vehicle 1000, which can effectively improve the aforementioned technical problems. That is, it can reduce the use of structural parts and fasteners, improve assembly efficiency, and reduce costs.

[0044] It should be noted that the first direction mentioned below refers to... Figures 2-5 The X direction is shown in the figure, and the second direction is... Figures 2-5 The Y direction shown in the figure, the third direction is Figures 2-5 The Z direction is shown in the diagram. The following will provide a detailed description of the battery module 100, battery pack 1100, and new energy vehicle 1000.

[0045] Please refer to Figure 1 , Figure 1 This is a structural schematic diagram of the new energy vehicle 1000 provided in this embodiment, combined with... Figure 1 The new energy vehicle 1000 includes a battery pack 1100 and a vehicle body 1200. The battery pack 1100 is installed on the vehicle body 1200 to provide electrical energy to the vehicle body 1200 so as to realize the various functions of the vehicle body 1200.

[0046] Further, the battery pack 1100 comprises the battery module 100 and a battery shell (not shown in the figure), and the battery module 100 is arranged in the battery shell. For those skilled in the art, the battery pack 1100 can also comprise a battery management system, an electrical system, a wire harness, a sensor and the like, which will not be described herein.

[0047] Please refer to Figure 2 and Figure 3 , Figure 2 The structural schematic diagram of the battery module 100 provided in the embodiment is shown in Figure 3 The exploded view of the battery module 100 provided in the embodiment is shown in Figure 2 and Figure 3 The battery module 100 comprises the liquid cooling assembly 10 and the module unit 30. The liquid cooling assembly 10 comprises the first liquid cooling pipe 11, the second liquid cooling pipe 12 and the liquid cooling plate 13. The first liquid cooling pipe 11 and the second liquid cooling pipe 12 are arranged at intervals, and the two ends of the liquid cooling plate 13 are connected with the first liquid cooling pipe 11 and the second liquid cooling pipe 12 respectively. The module assembly space 20 is formed between the first liquid cooling pipe 11, the second liquid cooling pipe 12 and the liquid cooling plate 13. At least part of the module unit 30 is arranged in the module assembly space 20 and adheres to the liquid cooling plate 13. One end of the module unit 30 is connected with the connection between the first liquid cooling pipe 11 and the liquid cooling plate 13, and the other end of the module unit 30 is connected with the connection between the second liquid cooling pipe 12 and the liquid cooling plate 13.

[0048] That is, by arranging the module assembly space 20 in the liquid cooling assembly 10, the module unit 30 can be conveniently installed. One end of the module unit 30 can be connected and fixed with the connection between the first liquid cooling pipe 11 and the liquid cooling plate 13, and the other end of the module unit 30 can be connected and fixed with the connection between the second liquid cooling pipe 12 and the liquid cooling plate 13. It is easy to understand that the liquid cooling assembly 10 can provide the liquid cooling and heat dissipation function for the module unit 30, and also can act as a structural member or a fastener to be connected and fixed with the module unit 30, thereby reducing the use of structural members and fasteners, improving the assembly efficiency and reducing the cost.

[0049] It should be noted that the first liquid cooling pipe 11, the second liquid cooling pipe 12 and the liquid cooling plate 13 are all provided with flow channels or chambers for the cooling liquid to flow through, and the flow channels or chambers in the first liquid cooling pipe 11, the second liquid cooling pipe 12 and the liquid cooling plate 13 are communicated when they are connected with each other.

[0050] Specifically, please refer to Figure 4 , Figure 4 The structural schematic diagram of the liquid cooling assembly 10 provided in the embodiment is shown in Figures 2-4The first liquid cooling pipe 11 comprises a first liquid cooling main pipe 111 and a first liquid cooling branch pipe 112 connected with each other, and the second liquid cooling pipe 12 comprises a second liquid cooling main pipe 121 and a second liquid cooling branch pipe 122 connected with each other; the first liquid cooling main pipe 111 and the second liquid cooling main pipe 121 are arranged in a first direction and are spaced apart from each other, and the first liquid cooling main pipe 111 is arranged in a second direction and is spaced apart from the second liquid cooling main pipe 121; the liquid cooling plate 13 is arranged in a third direction and is spaced apart from the first liquid cooling main pipe 111 and the second liquid cooling main pipe 121; the first liquid cooling branch pipe 112 is arranged on a side of the first liquid cooling main pipe 111 close to the liquid cooling plate 13, the second liquid cooling branch pipe 122 is arranged on a side of the second liquid cooling main pipe 121 close to the liquid cooling plate 13, and the liquid cooling plate 13 is connected with the first liquid cooling branch pipe 112 and the second liquid cooling branch pipe 122 at two ends thereof.

[0051] The one end of the module unit 30 is connected with the connection position of the first liquid cooling branch pipe 112 and the liquid cooling plate 13, and the other end of the module unit 30 is connected with the connection position of the second liquid cooling branch pipe 122 and the liquid cooling plate 13; the first direction, the second direction and the third direction are perpendicular to each other. By arranging the first liquid cooling branch pipe 112 and the second liquid cooling branch pipe 122, the module unit 30 can be conveniently connected with the liquid cooling plate 13, and the module assembly space 20 formed is larger.

[0052] In the embodiment, the two ends of the liquid cooling plate 13 are arranged in a direction of the first liquid cooling main pipe 111 and the second liquid cooling main pipe 121, so that the liquid cooling plate 13 can be better connected with the first liquid cooling branch pipe 112 and the second liquid cooling branch pipe 122, thereby improving the assembly efficiency.

[0053] Further, in order to install more module units 30 and improve the energy density of the battery module 100, the number of the first liquid cooling branch pipe 112, the second liquid cooling branch pipe 122, the liquid cooling plate 13 and the module unit 30 can be set to be multiple; the multiple first liquid cooling branch pipes 112 are arranged in the second direction and are spaced apart from each other, and the multiple second liquid cooling branch pipes 122 are arranged in the second direction and are spaced apart from each other and correspond to the multiple first liquid cooling branch pipes 112 one by one; the multiple liquid cooling plates 13 correspond to the multiple first liquid cooling branch pipes 112 or the multiple second liquid cooling branch pipes 122 one by one, and the multiple module units 30 correspond to the multiple liquid cooling plates 13 one by one.

[0054] It should be noted that, in the embodiment, the number of the first liquid cooling branch pipe 112, the second liquid cooling branch pipe 122, the liquid cooling plate 13 and the module unit 30 is three, and of course, in other embodiments, the number can be two, four or five, etc.

[0055] Please continue to combine Figure 3 and Figure 4The liquid cooling assembly 10 further comprises an inlet pipe 14 and an outlet pipe 15, the inlet pipe 14 is connected with the first liquid cooling pipe 11, and the outlet pipe 15 is connected with the second liquid cooling pipe 12. It can be easily understood that the inlet pipe 14 and the outlet pipe 15 are connected with a cooling liquid conveying device, so as to provide circulating cooling liquid for the liquid cooling assembly 10, so as to realize the temperature regulation of the module unit 30 as a whole.

[0056] It should be noted that in the embodiment, the inlet pipe 14 and the outlet pipe 15 are located on the same side of the module unit 30, of course, in other embodiments, the inlet pipe 14 and the outlet pipe 15 can be located on opposite or adjacent sides.

[0057] Please refer to Figure 5 , Figure 5 The exploded view of the module unit 30 provided in the embodiment, combined with Figure 2 、 Figure 3 and Figure 5 , the first liquid cooling pipe 11 and the second liquid cooling pipe 12 are arranged along the first direction, the module unit 30 comprises a first clamping plate 31, a second clamping plate 32, a first battery pack 33 and a second battery pack 34, the first clamping plate 31 and the second clamping plate 32 are arranged along the second direction, the first battery pack 33 and the second battery pack 34 are arranged along the third direction, and are located between the first clamping plate 31 and the second clamping plate 32, the first clamping plate 31 and the second clamping plate 32 are respectively used for fixing two ends of the first battery pack 33 and respectively used for fixing two ends of the second battery pack 34.

[0058] Among them, the liquid cooling plate 13 is located between the first battery pack 33 and the second battery pack 34, and the two sides of the liquid cooling plate 13 are respectively attached to the first battery pack 33 and the second battery pack 34, and the first battery pack 33 is located in the module assembly space 20; one end of the first clamping plate 31 and one end of the second clamping plate 32 are connected with the connection part of the first liquid cooling pipe 11 and the liquid cooling plate 13, and the other end of the first clamping plate 31 and the other end of the second clamping plate 32 are connected with the connection part of the second liquid cooling pipe 12 and the liquid cooling plate 13.

[0059] It can be understood that the first clamping plate 31 and the second clamping plate 32 can play the role of installing and fixing the first battery pack 33 and the second battery pack 34, after the battery pack is assembled and fixed, the first clamping plate 31 and the second clamping plate 32 are connected and fixed with the corresponding position of the liquid cooling assembly 10, so as to realize the stable connection of the whole battery pack and the clamping plate.

[0060] Further, the first battery group 33 comprises a plurality of first battery cells 331 arranged in sequence along the first direction. In order to better install the first battery cells 331 and improve the installation stability, the first clamping plate 31 is provided with a plurality of first installation grooves 311, and the second clamping plate 32 is provided with a plurality of second installation grooves 321. The plurality of first installation grooves 311 correspond to the plurality of second installation grooves 321 one by one. The plurality of first battery cells 331 correspond to the plurality of first installation grooves 311 or the plurality of second installation grooves 321 one by one. The two ends of the first battery cell 331 are arranged in the first installation groove 311 and the second installation groove 321, respectively.

[0061] Similarly, the second battery group 34 comprises a plurality of second battery cells 341 arranged in sequence along the first direction. In order to better install the second battery cells 341 and improve the installation stability, the first clamping plate 31 is further provided with a plurality of third installation grooves 312, and the second clamping plate 32 is further provided with a plurality of fourth installation grooves 322. The plurality of third installation grooves 312 correspond to the plurality of fourth installation grooves 322 one by one. The plurality of second battery cells 341 correspond to the plurality of third installation grooves 312 or the plurality of fourth installation grooves 322 one by one. The two ends of the second battery cell 341 are arranged in the third installation groove 312 and the fourth installation groove 322, respectively.

[0062] In order to realize the series connection or parallel connection between the first battery cell 331 and the second battery cell 341, in the embodiment, the module unit 30 further comprises a first bus bar 35 and a second bus bar 36. The first bus bar 35 is arranged on the side of the first clamping plate 31 away from the second clamping plate 32, and the second bus bar 36 is arranged on the side of the second clamping plate 32 away from the first clamping plate 31. The first bus bar 35 is used in cooperation with the second bus bar 36 to realize the series connection or parallel connection of the plurality of first battery cells 331 and the plurality of second battery cells 341.

[0063] It should be noted that the first installation groove 311, the second installation groove 321, the third installation groove 312, and the fourth installation groove 322 are all through grooves, that is, they penetrate through both sides of the first clamping plate 31 or the second clamping plate 32, thereby facilitating the connection of the first bus bar 35 with the first battery cell 331 and the second battery cell 341, and also facilitating the connection of the second bus bar 36 with the first battery cell 331 and the second battery cell 341.

[0064] Specifically, the first bus bar 35 comprises a plurality of first bus pieces 351, and the second bus bar 36 comprises a plurality of second bus pieces 361. It can be easily understood that the series connection or parallel connection can be realized by connecting the bus pieces with the positive pole or the negative pole of the battery cell.

[0065] It should be noted that in the present embodiment, the plurality of first bus bars 351 and the plurality of second bus bars 361 are both provided in a split manner, that is, the plurality of first bus bars 351 are arranged in a first direction, and the plurality of second bus bars 361 are arranged in the first direction; of course, in other embodiments, the plurality of first bus bars 351 and the plurality of second bus bars 361 can also be provided in a CCS (Cells Contact System, integrated busbar) bus structure.

[0066] Please continue to combine Figure 2 , Figure 3 and Figure 5 , the first clamping plate 31 is also provided with a first clamping groove 313, and the second clamping plate 32 is also provided with a second clamping groove 323, and the two ends of the liquid cooling plate 13 are arranged in the first clamping groove 313 and the second clamping groove 323 respectively. It is easy to understand that by arranging the clamping groove on the clamping plate, the clamping and fixing of the liquid cooling plate 13 can be facilitated, thereby improving the installation stability of the liquid cooling plate 13, and further improving the overall structural stability of the battery module 100.

[0067] It should be noted that in order to better clamp in the first clamping groove 313 and the second clamping groove 323, in the present embodiment, the liquid cooling plate 13 is provided with a first extension clamping portion and a second extension clamping portion (not shown in the figure) on the opposite sides, the first extension clamping portion and the second extension clamping portion are arranged in a second direction, and the first extension clamping portion is clamped in the first clamping groove 313, and the second extension clamping portion is clamped in the second clamping groove 323.

[0068] In addition, the first clamping groove 313 and the second clamping groove 323 can be provided as through grooves, that is, they respectively penetrate the two sides of the first clamping plate 31 and the two sides of the second clamping plate 32, in this way, the signal acquisition wire harness inside the module can be conveniently passed through.

[0069] In summary, the embodiment of the utility model provides a kind of battery module 100, battery pack 1100 and new energy vehicle 1000, battery module 100 includes liquid cooling component 10 and module unit 30, liquid cooling component 10 includes first liquid cooling pipe 11, second liquid cooling pipe 12 and liquid cooling plate 13, first liquid cooling pipe 11 is arranged with second liquid cooling pipe 12, and both ends of liquid cooling plate 13 are connected with first liquid cooling pipe 11 and second liquid cooling pipe 12, and module assembly space 20 is formed between first liquid cooling pipe 11, second liquid cooling pipe 12 and liquid cooling plate 13;At least part of module unit 30 is arranged in module assembly space 20, and is attached with liquid cooling plate 13, one end of module unit 30 is connected with the connecting place of first liquid cooling pipe 11 and liquid cooling plate 13, and the other end of module unit 30 is connected with the connecting place of second liquid cooling pipe 12 and liquid cooling plate 13.By being arranged in liquid cooling component 10, module assembly space 20 can be installed conveniently;And one end of module unit 30 can be connected and fixed with the connecting place of first liquid cooling pipe 11 and liquid cooling plate 13, and the other end of module unit 30 can be connected and fixed with the connecting place of second liquid cooling pipe 12 and liquid cooling plate 13, which is easy to understand, the liquid cooling component 10 can provide the function of liquid cooling heat dissipation for module unit 30, and also can act as structural member or fastener, and is connected and fixed with module unit 30, so as to reduce the use of structural member and fastener, improve assembly efficiency, and reduce cost.

[0070] Battery pack 1100 includes battery module 100, which has all the functions and benefits of the battery module 100.

[0071] New energy vehicle 1000 includes battery pack 1100, which has all the functions and benefits of the battery pack 1100.

[0072] The above is only a specific embodiment of the utility model, and is not used to limit the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A battery module, characterized by, The liquid cooling assembly (10) comprises a first liquid cooling pipe (11), a second liquid cooling pipe (12) and a liquid cooling plate (13), the first liquid cooling pipe (11) and the second liquid cooling pipe (12) are spaced apart, and the two ends of the liquid cooling plate (13) are connected with the first liquid cooling pipe (11) and the second liquid cooling pipe (12) respectively, and a module assembly space (20) is formed between the first liquid cooling pipe (11), the second liquid cooling pipe (12) and the liquid cooling plate (13). The module unit (30) is at least partially arranged in the module assembly space (20) and is attached to the liquid cooling plate (13), one end of the module unit (30) is connected with the connection between the first liquid cooling pipe (11) and the liquid cooling plate (13), and the other end of the module unit (30) is connected with the connection between the second liquid cooling pipe (12) and the liquid cooling plate (13). The first liquid cooling pipe (11) comprises a first liquid cooling main pipe (111) and a first liquid cooling branch pipe (112), the second liquid cooling pipe (12) comprises a second liquid cooling main pipe (121) and a second liquid cooling branch pipe (122), the first liquid cooling main pipe (111) and the second liquid cooling main pipe (121) are spaced apart along a first direction, and the first liquid cooling main pipe (111) is arranged along a second direction, and the second liquid cooling main pipe (121) is spaced apart along the second direction. The liquid cooling plate (13) is spaced apart from the first liquid cooling main pipe (111) and the second liquid cooling main pipe (121) along a third direction, the first liquid cooling branch pipe (112) is located on the side of the first liquid cooling main pipe (111) close to the liquid cooling plate (13), the second liquid cooling branch pipe (122) is located on the side of the second liquid cooling main pipe (121) close to the liquid cooling plate (13), and the two ends of the liquid cooling plate (13) are connected with the first liquid cooling branch pipe (112) and the second liquid cooling branch pipe (122) respectively.

2. The battery module of claim 1, wherein, One end of the module unit (30) is connected with the connection between the first liquid cooling branch pipe (112) and the liquid cooling plate (13), and the other end of the module unit (30) is connected with the connection between the second liquid cooling branch pipe (122) and the liquid cooling plate (13), and the first direction, the second direction and the third direction are perpendicular to each other. The number of the first liquid cooling branch pipe (112), the second liquid cooling branch pipe (122), the liquid cooling plate (13) and the module unit (30) is multiple, multiple first liquid cooling branch pipes (112) are spaced apart along the second direction, multiple second liquid cooling branch pipes (122) are spaced apart along the second direction and correspond to multiple first liquid cooling branch pipes (112) one by one. Multiple liquid cooling plates (13) correspond to multiple first liquid cooling branch pipes (112) or multiple second liquid cooling branch pipes (122) one by one, and multiple module units (30) correspond to multiple liquid cooling plates (13) one by one.

3. The battery module of claim 2, wherein, ​ ​ 4. The battery module of claim 1, wherein, The first liquid cooling pipe (11) and the second liquid cooling pipe (12) are spaced apart along a first direction, the module unit (30) comprises a first clamping plate (31), a second clamping plate (32), a first battery pack (33) and a second battery pack (34), the first clamping plate (31) and the second clamping plate (32) are spaced apart along a second direction, the first battery pack (33) and the second battery pack (34) are spaced apart along a third direction and are located between the first clamping plate (31) and the second clamping plate (32), and the first clamping plate (31) and the second clamping plate (32) are respectively used for fixing two ends of the first battery pack (33) and two ends of the second battery pack (34); The liquid cooling plate (13) is located between the first battery pack (33) and the second battery pack (34), and the two sides of the liquid cooling plate (13) are respectively attached to the first battery pack (33) and the second battery pack (34), and the first battery pack (33) is located in the module assembly space (20); one end of the first clamping plate (31) and one end of the second clamping plate (32) are connected with the connection of the first liquid cooling pipe (11) and the liquid cooling plate (13), and the other end of the first clamping plate (31) and the other end of the second clamping plate (32) are connected with the connection of the second liquid cooling pipe (12) and the liquid cooling plate (13); the first direction, the second direction and the third direction are perpendicular to each other.

5. The battery module of claim 4, wherein, The first battery pack (33) comprises a plurality of first battery cells (331) arranged in sequence along the first direction, the first clamping plate (31) is provided with a plurality of first installation grooves (311), the second clamping plate (32) is provided with a plurality of second installation grooves (321), the plurality of first installation grooves (311) correspond to the plurality of second installation grooves (321) one by one, the plurality of first battery cells (331) correspond to the plurality of first installation grooves (311) or the plurality of second installation grooves (321) one by one, and two ends of the first battery cell (331) are arranged in the first installation groove (311) and the second installation groove (321) respectively; The second battery pack (34) comprises a plurality of second battery cells (341) arranged in sequence along the first direction, the first clamping plate (31) is further provided with a plurality of third installation grooves (312), the second clamping plate (32) is further provided with a plurality of fourth installation grooves (322), the plurality of third installation grooves (312) correspond to the plurality of fourth installation grooves (322) one by one, the plurality of second battery cells (341) correspond to the plurality of third installation grooves (312) or the plurality of fourth installation grooves (322) one by one, and two ends of the second battery cell (341) are arranged in the third installation groove (312) and the fourth installation groove (322) respectively.

6. The battery module of claim 5, wherein, The module unit (30) further comprises a first busbar (35) and a second busbar (36), the first busbar (35) is arranged on the side of the first clamping plate (31) away from the second clamping plate (32), and the second busbar (36) is arranged on the side of the second clamping plate (32) away from the first clamping plate (31); The first busbar (35) is used in cooperation with the second busbar (36) to connect the plurality of first battery cells (331) and the plurality of second battery cells (341) in series or in parallel.

7. The battery module of claim 4, wherein, The first clamping plate (31) is provided with a first clamping groove (313), and the second clamping plate (32) is provided with a second clamping groove (323), and the two ends of the liquid cooling plate (13) are arranged in the first clamping groove (313) and the second clamping groove (323) respectively.

8. The battery module of claim 1, wherein, The liquid cooling assembly (10) further comprises a liquid inlet pipe (14) and a liquid outlet pipe (15), the liquid inlet pipe (14) is connected with the first liquid cooling pipe (11), and the liquid outlet pipe (15) is connected with the second liquid cooling pipe (12).

9. A battery pack, characterized by, The battery module (100) of any one of claims 1-8.

10. A new energy vehicle, characterized in that, The battery pack (1100) of claim 9.

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