A side beam, a battery shell, a battery pack and a new energy vehicle

Abstract

The embodiment of the utility model provides a kind of side beam, battery shell, battery pack and new energy vehicle, it is related to power battery technical field.Side beam has liquid collection chamber, and the side of side beam is equipped with multiple first clamping slots, multiple first clamping slots are arranged at intervals, and all are communicated with liquid collection chamber;Among them, the first clamping slot is used to install the liquid cooling pipe of liquid cooling component, so that the liquid cooling pipe is communicated with liquid collection chamber.Through being provided with liquid collection chamber and clamping slot on side beam, the installation of liquid cooling pipe and the flow of coolant can be facilitated, the use quantity of functional parts and structural parts and other components is reduced, the assembly process is simplified, so as to improve assembly efficiency, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of power battery technology, specifically to a side beam, battery casing, battery pack, and new energy vehicle. Background Technology

[0002] In the field of power batteries, the battery pack casing of new energy vehicles is usually composed of core components such as a base plate, a top cover, liquid cooling components and cell modules, and requires a large number of functional and structural components for system assembly.

[0003] However, this traditional assembly method has significant technical limitations: firstly, the large number of parts complicates the assembly process; secondly, this complexity directly leads to increased production costs and reduced assembly efficiency. Especially in the application scenario of hybrid electric vehicles (HEVs), due to their smaller overall battery capacity and compact size, continuing to use conventional assembly designs would further exacerbate the complexity of the assembly process and significantly increase production costs. Utility Model Content

[0004] The purpose of this utility model is to provide a side beam, battery housing, battery pack and new energy vehicle, which can reduce the number of parts used, simplify the assembly process, thereby improving assembly efficiency and reducing production costs.

[0005] The embodiments of this utility model are implemented as follows:

[0006] In a first aspect, the present invention provides a side beam having a liquid collection chamber, and a plurality of first slots are provided on one side of the side beam, the plurality of first slots being spaced apart and all communicating with the liquid collection chamber;

[0007] The first slot is used to install the liquid cooling pipe of the liquid cooling assembly so that the liquid cooling pipe is connected to the liquid collection chamber.

[0008] In an optional embodiment, the side beam includes a side beam body and a hoisting part, the side beam body is connected to the hoisting part, the side beam body has the liquid collection chamber, and the side beam body is provided with the plurality of first slots on the side away from the hoisting part.

[0009] The hoisting section has at least one hoisting hole.

[0010] In an optional embodiment, the side beam further includes a reinforcing plate, which is disposed on the side of the side beam body away from the hoisting part, and the reinforcing plate has a plurality of second slots, which correspond one-to-one with and are connected to the plurality of first slots.

[0011] In an optional embodiment, the side beam body is further provided with a first pipe interface on the side away from the hoisting part, and the first pipe interface is connected to the liquid collection chamber; the reinforcing plate is further provided with a second pipe interface, and the second pipe interface is connected to the first pipe interface.

[0012] Both the first pipe interface and the second pipe interface are used to install the liquid inlet pipe or the liquid outlet pipe of the liquid cooling component.

[0013] In an optional embodiment, the side beam further includes a lifting point steel sleeve disposed in the lifting hole.

[0014] In an optional embodiment, the side beam is provided with a through channel, and a first sealing port and a second sealing port are also provided on one side of the side beam. The first sealing port and the second sealing port are spaced apart and are both connected to the through channel.

[0015] The first sealing port and the second sealing port are respectively provided with a first sealing element and a second sealing element. The first sealing element and the second sealing element are used to seal the through channel and together with the sealing part of the through channel, they form the liquid collection chamber.

[0016] Secondly, the present invention provides a battery housing, including a liquid cooling assembly and a side beam as described in any of the foregoing embodiments. The liquid cooling assembly includes a plurality of liquid cooling pipes, which are spaced apart, and one end of each of the plurality of liquid cooling pipes is respectively snapped into the plurality of first slots and communicates with the liquid collection chamber.

[0017] A battery cell installation space is formed between two adjacent liquid cooling pipes.

[0018] In an optional embodiment, there are two side beams, which are arranged opposite to each other; the battery housing also includes a first fixed side beam and a second fixed side beam, which are arranged sequentially and at intervals, along with the first fixed side beam, the plurality of liquid cooling pipes and the second fixed side beam.

[0019] The first fixed side beam, one of the side beams, the second fixed side beam, and the other side beam are connected end to end in sequence, and the two ends of the plurality of liquid cooling pipes are respectively snapped into the two side beams.

[0020] Thirdly, this utility model provides a battery pack, including the battery casing described in the foregoing embodiments.

[0021] Fourthly, this utility model provides a new energy vehicle, including the battery pack described in the foregoing embodiments.

[0022] The beneficial effects of this utility model embodiment include:

[0023] The side beam has a liquid collection chamber, and a plurality of first slots are provided on one side of the side beam. The plurality of first slots are spaced apart and are all connected to the liquid collection chamber. The first slots are used to install the liquid cooling pipes of the liquid cooling components so that the liquid cooling pipes are connected to the liquid collection chamber.

[0024] By providing a first slot on the side beam, the installation and fixing of the liquid cooling pipes can be facilitated, allowing the side beam to function as a structural component. Furthermore, by providing a liquid collection chamber on the side beam, the flow of coolant in the liquid cooling pipes can be facilitated, enabling the collection and circulation of coolant from multiple liquid cooling pipes, thus allowing the side beam to also function as a functional component. It is easy to understand that the side beam integrates multiple structures and functions. During assembly, it can reduce the number of functional and structural components, simplifying the assembly process, thereby improving assembly efficiency and reducing production costs.

[0025] The battery casing includes a side beam, which has all the beneficial effects of the side beam.

[0026] The battery pack includes a battery housing, which has all the beneficial effects of the battery housing.

[0027] New energy vehicles include battery packs, which have all the beneficial effects of those battery packs. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A schematic diagram of the structure of a new energy vehicle provided in an embodiment of this utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the battery casing provided in an embodiment of the present utility model;

[0031] Figure 3 A structural schematic diagram of the side beam from a first-view perspective provided for an embodiment of this utility model;

[0032] Figure 4 A sectional view of the side beam provided in an embodiment of this utility model;

[0033] Figure 5 An exploded view of the side beam provided in an embodiment of this utility model;

[0034] Figure 6An exploded view of the battery casing provided in an embodiment of this utility model;

[0035] Figure 7 A structural schematic diagram of the side beam from a second perspective, provided for an embodiment of this utility model.

[0036] Icons: 1000 - New Energy Vehicle; 1100 - Battery Pack; 110 - Battery Housing; 100 - Side Beam; 10 - Side Beam Body; 11 - First Slot; 12 - Liquid Collection Chamber; 13 - First Pipe Interface; 14 - Through Passage; 15 - First Sealing Port; 16 - Second Sealing Port; 20 - Lifting Part; 21 - Lifting Hole; 30 - Reinforcing Plate; 31 - Second Slot; 32 - Second Pipe Interface; 40 - Lifting Point Steel Sleeve; 51 - First Sealing Component; 52 - Second Sealing Component; 200 - Liquid Cooling Component; 201 - Liquid Cooling Pipe; 202 - Liquid Inlet Pipe; 203 - Liquid Outlet Pipe; 204 - Cell Installation Space; 300 - First Fixed Side Beam; 400 - Second Fixed Side Beam; 500 - Base Plate; 601 - First Electrical Mounting Plate; 602 - Second Electrical Mounting Plate; 1200 - Vehicle Body. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] 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.

[0042] 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.

[0043] As described in the background section, the traditional assembly method for battery pack casings has significant technical limitations: First, the large number of components complicates the assembly process; second, this complexity directly leads to increased production costs and reduced assembly efficiency. Especially in hybrid electric vehicle applications, where the overall battery capacity is small and the size is compact, continuing to use conventional assembly designs would further exacerbate the complexity of the assembly process and significantly increase production costs.

[0044] Based on this, please refer to Figures 1-7 The present invention provides a side beam 100, a battery housing 110, a battery pack 1100, and a new energy vehicle 1000, which can effectively improve the aforementioned technical problems. Specifically, it can reduce the number of parts used, simplify assembly processes, improve assembly efficiency, and reduce production costs. The side beam 100, battery housing 110, battery pack 1100, and new energy vehicle 1000 will be described in detail below.

[0045] Please refer to Figure 1 , Figure 1This 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] The battery pack 1100 includes a battery housing 110 and a battery module. The battery module is located in the battery housing 110. As can be easily understood, the battery module acts as an energy source to provide electrical energy to the vehicle body 1200.

[0047] Please refer to Figure 2 , Figure 2 This is a schematic diagram of the structure of the battery casing 110 provided in this embodiment, combined with... Figure 2 The battery housing 110 includes a side beam 100 and a liquid cooling assembly 200. The liquid cooling assembly 200 is connected and fixed to the side beam 100. The side beam 100 can serve as both a structural and functional component, thereby reducing the number of parts used and simplifying the assembly process.

[0048] Specifically, please refer to Figures 3-5 , Figure 3 This is a first-view structural schematic diagram of the side beam 100 provided in this embodiment. Figure 4 This is a sectional view of the side beam 100 provided in this embodiment. Figure 5 This is an exploded view of the side beam 100 provided in this embodiment. (Combined with...) Figures 3-5 The side beam 100 has a liquid collection chamber 12, and a plurality of first slots 11 are provided on one side of the side beam 100. The plurality of first slots 11 are spaced apart and are all connected to the liquid collection chamber 12. The first slots 11 are used to install the liquid cooling pipe 201 of the liquid cooling assembly 200 so that the liquid cooling pipe 201 is connected to the liquid collection chamber 12.

[0049] By providing a first slot 11 on the side beam 100, the installation and fixing of the liquid cooling pipe 201 can be facilitated, allowing the side beam 100 to function as a structural component. Furthermore, by providing a liquid collection chamber 12 on the side beam 100, the flow of coolant in the liquid cooling pipe 201 can be facilitated, enabling the collection and circulation of coolant from multiple liquid cooling pipes 201, thus allowing the side beam 100 to also function as a functional component. It is easy to understand that the side beam 100 integrates multiple structures and functions, reducing the number of functional and structural components used during assembly, simplifying the assembly process, thereby improving assembly efficiency and reducing production costs.

[0050] Combination Figures 2-5In this embodiment, the liquid cooling assembly 200 includes a plurality of liquid cooling pipes 201, which are spaced apart, and one end of each liquid cooling pipe 201 is respectively snapped into a plurality of first slots 11 and communicates with the liquid collection chamber 12; wherein, a cell installation space 204 is formed between two adjacent liquid cooling pipes 201.

[0051] In other words, when installing the battery module, the battery cell can be directly mounted between two adjacent liquid cooling pipes 201 for bonding. The liquid cooling pipes 201 can be used to position and fix the battery cell, improving installation efficiency and also providing liquid cooling for the battery cell. Furthermore, it should be noted that the distance between the multiple liquid cooling pipes 201 and the distance between the multiple first slots 11 can be adjusted according to the size of the battery cell, improving versatility and compatibility.

[0052] Further, please refer to Figure 6 , Figure 6 This is an exploded view of the battery casing 110 provided in this embodiment, combined with... Figures 2-6 In this embodiment, there are two side beams 100, which are arranged opposite to each other. The battery casing 110 also includes a first fixed side beam 300 and a second fixed side beam 400, which are arranged sequentially at intervals, along with a plurality of liquid cooling pipes 201. The first fixed side beam 300, one of the side beams 100, the second fixed side beam 400, and the other side beam 100 are connected end to end in sequence, and the two ends of the plurality of liquid cooling pipes 201 are respectively snapped into the two side beams 100.

[0053] Understandably, during assembly, one end of the liquid cooling pipe 201 engages with the first slot 11 of one of the side beams 100, and the other end engages with the first slot 11 of the other side beam 100. By setting up the engagement between the two side beams 100 and the liquid cooling pipe 201, the overall installation stability of the liquid cooling pipe 201 can be further improved, thereby ensuring the stable installation of the battery cell and battery module.

[0054] Optionally, the battery housing 110 also includes a base plate 500, which is connected to the first fixed beam, the two side beams 100 and the second fixed beam, thereby improving the overall structural strength of the battery housing 110.

[0055] As will be readily apparent to those skilled in the art, the battery pack 1100 also includes electrical components. To facilitate the installation and proper arrangement of these components, in this embodiment, the battery casing 110 further includes a first electrical mounting plate 601 and a second electrical mounting plate 602. Both the first electrical mounting plate 601 and the second electrical mounting plate 602 are mounted on the base plate 500. The first electrical mounting plate 601 is located between the first fixed side beam 300 and the plurality of liquid cooling pipes 201, and the second electrical mounting plate 602 is located between the second fixed side beam 400 and the plurality of liquid cooling pipes 201. It is easily understood that some electrical components can be mounted on the first electrical mounting plate 601, and other electrical components can be mounted on the second electrical mounting plate 602.

[0056] To facilitate the circulation of coolant, the liquid cooling assembly 200 also includes an inlet pipe 202 and an outlet pipe 203. The inlet pipe 202 is connected to the liquid collection chamber 12 of one of the side beams 100, and the outlet pipe 203 is connected to the liquid collection chamber 12 of the other side beam 100.

[0057] Please continue to combine Figures 3-5 Specifically, the side beam 100 includes a side beam body 10 and a hoisting part 20. The side beam body 10 is connected to the hoisting part 20. The side beam body 10 has a liquid collection chamber 12, and a plurality of first slots 11 are provided on the side of the side beam body 10 away from the hoisting part 20. The hoisting part 20 has at least one hoisting hole 21.

[0058] By opening a lifting hole 21 on the lifting part 20, the overall lifting of the battery casing 110 can be facilitated, thereby further increasing the functionality of the side beam 100, further reducing the number of parts used, improving assembly efficiency, and reducing production costs.

[0059] It should be noted that in this embodiment, there are two lifting holes 21; of course, in other embodiments, the number of lifting holes 21 can be one, three, or four, etc.

[0060] In order to improve stability during the hoisting process and protect the hoisting part 20 and the hook and other structures of the hoisting equipment, in this embodiment, the side beam 100 also includes a hoisting point steel sleeve 40, which is disposed in the hoisting hole 21.

[0061] Furthermore, in order to improve the connection strength between the liquid cooling pipe 201 and the side beam 100, in this embodiment, the side beam 100 also includes a reinforcing plate 30. The reinforcing plate 30 is disposed on the side of the side beam body 10 away from the hoisting part 20, and the reinforcing plate 30 has a plurality of second slots 31, which correspond one-to-one with and are connected to a plurality of first slots 11.

[0062] To facilitate the installation of the inlet pipe 202 or outlet pipe 203 with the side beam 100 and to achieve communication with the liquid collection chamber 12, in this embodiment, a first pipe interface 13 is provided on the side of the side beam body 10 away from the hoisting part 20, and the first pipe interface 13 is connected to the liquid collection chamber 12; the reinforcing plate 30 is also provided with a second pipe interface 32, and the second pipe interface 32 is connected to the first pipe interface 13. Both the first pipe interface 13 and the second pipe interface 32 are used to install the inlet pipe 202 or outlet pipe 203 of the liquid cooling assembly 200.

[0063] It should be noted that the side beam 100 provided in this embodiment is specifically an extruded profile, which is manufactured by an extrusion molding process, so that the side beam 100 has a through channel 14. There are multiple through channels 14, all of which are provided through the opposite two end faces of the side beam 100.

[0064] Based on the above explanation, please refer to... Figure 7 , Figure 7 This is a structural schematic diagram of the side beam 100 provided in this embodiment from a second perspective, combined with... Figure 3 , Figure 4 and Figure 7 A first sealing port 15 and a second sealing port 16 are provided on one side of the side beam 100. The first sealing port 15 and the second sealing port 16 are spaced apart and are both connected to the through channel 14. A first sealing element 51 and a second sealing element 52 are respectively provided in the first sealing port 15 and the second sealing port 16. The first sealing element 51 and the second sealing element 52 are used to seal the through channel 14 and together with the sealed part of the through channel 14, they form the liquid collection chamber 12.

[0065] In other words, when the side beam 100 is provided with the through channel 14, the through channel 14 can be partially blocked by the first sealing member 51 and the second sealing member 52, forming a liquid collection chamber 12 together with the outer shell of the side beam 100. The first sealing port 15 and the second sealing port 16 facilitate the sealing operation of the through channel 14 by the first sealing member 51 and the second sealing member 52 during processing and manufacturing.

[0066] It should be noted that in this embodiment, there are two of each of the first sealing port 15, the second sealing port 16, the first sealing element 51, and the second sealing element 52, arranged vertically. The two through channels 14 respectively cooperate with the corresponding sealing ports and sealing elements to form two liquid collection chambers 12. It is easy to understand that both liquid collection chambers 12 are connected to multiple liquid cooling pipes 201. Furthermore, the first pipe interface 13 is simultaneously connected to both liquid collection chambers 12, meaning that the first pipe interface 13 is located in the middle of the two liquid collection chambers 12, thereby enabling the circulation of coolant between the inlet pipe 202, the outlet pipe 203, and the multiple liquid cooling pipes 201.

[0067] In summary, the embodiments of this utility model provide a side beam 100, a battery housing 110, a battery pack 1100, and a new energy vehicle 1000. The side beam 100 has a liquid collection chamber 12, and a plurality of first slots 11 are provided on one side of the side beam 100. The plurality of first slots 11 are spaced apart and all communicate with the liquid collection chamber 12. The first slots 11 are used to install the liquid cooling pipes 201 of the liquid cooling assembly 200, so that the liquid cooling pipes 201 communicate with the liquid collection chamber 12. By providing the first slots 11 on the side beam 100, the installation and fixing of the liquid cooling pipes 201 can be facilitated, so that the side beam 100 can serve as a structural component. Furthermore, by providing the liquid collection chamber 12 on the side beam 100, the flow of coolant in the liquid cooling pipes 201 can be facilitated, realizing the functions of collecting and circulating coolant in multiple liquid cooling pipes 201, so that the side beam 100 can also serve as a functional component. As is easily understood, the side beam 100 integrates multiple structures and functions. During assembly, it can reduce the number of functional and structural components, simplify the assembly process, thereby improving assembly efficiency and reducing production costs.

[0068] The battery housing 110 includes a side beam 100, which has all the functions and benefits of the side beam 100.

[0069] The battery pack 1100 includes a battery housing 110, which has all the functions and benefits of the battery housing 110.

[0070] The new energy vehicle 1000 includes a battery pack 1100, which has all the functions and benefits of the battery pack 1100.

[0071] The above description is merely a specific embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A side beam, characterized in that, The side beam (100) has a liquid collection chamber (12), and a plurality of first slots (11) are provided on one side of the side beam (100). The plurality of first slots (11) are spaced apart and are all connected to the liquid collection chamber (12). The first slot (11) is used to install the liquid cooling pipe (201) of the liquid cooling assembly (200) so that the liquid cooling pipe (201) is connected to the liquid collection chamber (12).

2. The side beam according to claim 1, characterized in that, The side beam (100) includes a side beam body (10) and a hoisting part (20). The side beam body (10) is connected to the hoisting part (20). The side beam body (10) has the liquid collection chamber (12) inside, and the side beam body (10) away from the hoisting part (20) has the plurality of first slots (11). The hoisting part (20) has at least one hoisting hole (21).

3. The side beam according to claim 2, characterized in that, The side beam (100) also includes a reinforcing plate (30), which is disposed on the side of the side beam body (10) away from the hoisting part (20), and the reinforcing plate (30) has a plurality of second slots (31), which correspond one-to-one with and are connected to the plurality of first slots (11).

4. The side beam according to claim 3, characterized in that, The side beam body (10) is provided with a first pipe interface (13) on the side away from the hoisting part (20), and the first pipe interface (13) is connected to the liquid collection chamber (12); the reinforcing plate (30) is also provided with a second pipe interface (32), and the second pipe interface (32) is connected to the first pipe interface (13); The first pipe interface (13) and the second pipe interface (32) are both used to install the liquid inlet pipe (202) or the liquid outlet pipe (203) of the liquid cooling assembly (200).

5. The side beam according to claim 2, characterized in that, The side beam (100) also includes a lifting point steel sleeve (40), which is disposed in the lifting hole (21).

6. The side beam according to claim 1, characterized in that, The side beam (100) is provided with a through channel (14), and a first sealing port (15) and a second sealing port (16) are also provided on one side of the side beam (100). The first sealing port (15) and the second sealing port (16) are spaced apart and are both connected to the through channel (14). The first sealing port (15) and the second sealing port (16) are respectively provided with a first sealing member (51) and a second sealing member (52). The first sealing member (51) and the second sealing member (52) are used to block the through channel (14) and together with the blocked part of the through channel (14) form the liquid collection chamber (12).

7. A battery casing, characterized in that, The liquid cooling assembly (200) includes a liquid cooling component (200) and a side beam (100) as described in any one of claims 1-6. The liquid cooling component (200) includes a plurality of liquid cooling pipes (201), which are spaced apart. One end of each of the plurality of liquid cooling pipes (201) is respectively snapped into the plurality of first slots (11) and communicates with the liquid collection chamber (12). A cell mounting space (204) is formed between two adjacent liquid cooling pipes (201).

8. The battery casing according to claim 7, characterized in that, The number of side beams (100) is two, and the two side beams (100) are arranged opposite to each other; the battery housing (110) also includes a first fixed side beam (300) and a second fixed side beam (400), and the first fixed side beam (300), the plurality of liquid cooling pipes (201) and the second fixed side beam (400) are arranged in sequence at intervals; The first fixed side beam (300), one of the side beams (100), the second fixed side beam (400), and the other side beam (100) are connected end to end in sequence, and the two ends of the plurality of liquid cooling pipes (201) are respectively snapped into the two side beams (100).

9. A battery pack, characterized in that, Includes the battery casing (110) as described in claim 7 or 8.

10. A new energy vehicle, characterized in that, Includes the battery pack (1100) as described in claim 9.

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