Filling assembly and battery pack with same

Abstract

The utility model discloses a filling assembly and a battery pack with the same, the filling assembly is used for the battery pack, the battery pack comprises a shell and a battery module, the shell is provided with an edge beam, the battery module is arranged in the shell, the battery module and the edge beam are arranged at an interval, and the filling assembly is arranged between the edge beam and the battery module and comprises an elastic supporting layer and an elastic supporting layer, the plastic sheet and the elastic supporting layer are stacked in the direction from the battery module to the edge beam; and the plastic package bag wraps the elastic supporting layer and the plastic sheet. According to the filling assembly disclosed by the utility model, the thickness of the filling assembly can be reduced, the overall rigidity of the filling assembly can be improved and the assembling difficulty of the filling assembly can be reduced before the filling assembly is arranged between the battery module and the edge beam, and the elastic supporting layer can naturally expand after the filling assembly is arranged between the battery module and the edge beam; and the battery module is supported, so that the battery cell is stressed, the requirements of BOL and EOL expansion force of the battery cell are met, and the service life of the battery pack is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a filling component and a battery pack having the same. Background Art

[0002] As the current social energy crisis becomes increasingly serious, the new energy industry has received widespread attention and developed rapidly, especially new energy vehicles have received more and more attention from the society. In the related technology, foam is usually provided between the side beam and the battery module. The foam plays a vital role in the life and low temperature performance of the battery pack, but it is often difficult to insert the foam between the side beam and the battery module. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a filling component, which can improve the overall rigidity of the filling component, reduce the difficulty of assembling the filling component, and facilitate the assembly of the filling component into the gap between the battery module and the side beam.

[0004] The utility model also provides a battery pack, which includes the above-mentioned filling assembly.

[0005] According to an embodiment of the utility model, a filling component is used for a battery pack, which includes a shell and a battery module, wherein the shell has a side beam, the battery module is arranged in the shell and spaced apart from the side beam, and the filling component is arranged between the side beam and the battery module and includes: an elastic supporting layer; a plastic sheet, wherein the plastic sheet and the elastic supporting layer are stacked in a direction from the battery module to the side beam; and a plastic packaging bag, wherein the plastic packaging bag covers the elastic supporting layer and the plastic sheet.

[0006] According to the filling assembly of the embodiment of the utility model, by providing a filling assembly between the side beam and the battery module, the filling assembly includes an elastic support layer, a plastic sheet and a plastic packaging bag, the plastic sheet and the elastic support layer are stacked, and the plastic packaging bag covers the elastic support layer and the plastic sheet, before the filling assembly is installed between the battery module and the side beam, the thickness of the filling assembly can be reduced, the overall rigidity of the filling assembly can be improved, the assembly difficulty of the filling assembly can be reduced, and the filling assembly can be easily assembled into the gap between the battery module and the side beam. After the filling assembly is installed between the battery module and the side beam, the elastic support layer can be naturally expanded to support the battery module, so that the battery cell is stressed, the battery cell BOL and EOL expansion force requirements are met, the service life of the battery pack is extended, and the battery pack can play a buffering role when the battery pack is bumped or hit, protecting the battery module. In addition, compared with the prior art that only a foam layer is used to fill the gap between the battery module and the side beam, the use of an elastic support layer and a plastic sheet at the same time can relatively reduce the use of the elastic support layer, save the production cost of the filling assembly, and reduce the production cost of the battery pack.

[0007] In addition, the filling assembly according to the utility model may also have the following additional technical features:

[0008] In some embodiments, the elastic supporting layer is a foam layer.

[0009] In some embodiments, the elastic support layer is disposed on the side of the plastic sheet facing the battery module or the side beam; or, the elastic support layer includes a first elastic support layer and a second elastic support layer, and the first elastic support layer and the second elastic support layer are respectively located on two opposite sides of the plastic sheet in the thickness direction.

[0010] In some embodiments, the elastic supporting layer and the plastic sheet have the same shape and size and their outer edges are flush.

[0011] In some embodiments, the plastic sheet is a PC sheet.

[0012] In some embodiments, the plastic sealing bag includes: a first plastic sealing sheet and a second plastic sealing sheet, the first plastic sealing sheet and the second plastic sealing sheet each include a plastic sealing main part and a plastic sealing connecting part arranged on the outer periphery of the plastic sealing main part, the plastic sealing connecting part extends along the circumferential direction of the plastic sealing main part, the first plastic sealing sheet and the second plastic sealing sheet are stacked and the plastic sealing connecting parts of the first plastic sealing sheet and the second plastic sealing sheet are connected, and the elastic supporting layer and the plastic sheet are located between the two plastic sealing main parts.

[0013] In some embodiments, the plastic sealing connection portion has a notch.

[0014] In some embodiments, the notches are multiple and spaced apart along the circumferential direction of the plastic sealing connection portion.

[0015] According to an embodiment of the utility model, the battery pack includes: a shell having the side beam; a battery module, the battery module is arranged in the shell and spaced apart from the side beam; and the above-mentioned filling assembly, the filling assembly is arranged between the side beam and the battery module.

[0016] According to the battery pack of the embodiment of the utility model, by providing the above-mentioned filling component, by providing the filling component between the side beam and the battery module, the filling component includes an elastic support layer, a plastic sheet and a plastic packaging bag, the plastic sheet and the elastic support layer are stacked, and the plastic packaging bag covers the elastic support layer and the plastic sheet, before the filling component is installed between the battery module and the side beam, the thickness of the filling component can be reduced, the overall rigidity of the filling component can be improved, the assembly difficulty of the filling component can be reduced, and the filling component can be easily assembled into the gap between the battery module and the side beam. After the filling component is installed between the battery module and the side beam, the elastic support layer can be naturally expanded to support the battery module, so that the battery cell is stressed, the battery cell BOL and EOL expansion force requirements are met, and the service life of the battery pack is extended. It can also play a buffering role when the battery pack is bumped or hit, protecting the battery module. In addition, compared with the prior art that only a foam layer is used to fill the gap between the battery module and the side beam, the use of the elastic support layer and the plastic sheet at the same time can relatively reduce the use of the elastic support layer, save the production cost of the filling component, and reduce the production cost of the battery pack.

[0017] In addition, the battery pack according to the utility model may also have the following additional technical features:

[0018] In some embodiments, the battery module includes a plurality of battery cells arranged along a first direction, and the filling components are disposed at both ends of the battery module along the first direction.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a three-dimensional diagram of a filling assembly according to an embodiment of the utility model;

[0022] Figure 2 It is an exploded view of a filling assembly according to an embodiment of the utility model.

[0023] Reference numerals:

[0024] 100. Filling components;

[0025] 1. Elastic support layer;

[0026] 2. Plastic sheet;

[0027] 3. Plastic sealing bag; 31. First plastic sealing sheet; 32. Second plastic sealing sheet; 33. Plastic sealing body; 34. Plastic sealing connecting part; 341. Notch. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The filling assembly 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0033] The filling assembly 100 according to the embodiment of the utility model is used for a battery pack, which includes a shell and a battery module. The shell can protect the internal structure of the battery pack to prevent the internal structure of the battery pack from being exposed and damaged, which is beneficial to extending the service life of the battery pack. Furthermore, the shell has a side beam, the battery module is arranged in the shell and is spaced from the side beam, and the filling assembly 100 is arranged between the side beam and the battery module, which can provide support for the battery module, so that the battery cell is stressed, meeting the stress requirements of the battery cell BOL (early life test of electric vehicle battery pack) and EOL (end of life test of electric vehicle battery pack), extending the service life of the battery pack, and can separate the battery module from the side beam, play a buffering role when the battery pack is bumped or hit, protect the battery module, and ensure the low temperature characteristics of the battery pack.

[0034] Specifically, refer to the attached Figure 2 As shown, the filling assembly 100 includes an elastic support layer 1, a plastic sheet 2 and a plastic bag 3. The elastic support layer 1 is elastic, and the plastic sheet 2 and the elastic support layer 1 are in the direction from the battery module to the side beam (see the attached Figure 2 In the prior art, the finished foam layer is relatively soft. During the assembly of the battery pack, it is easy for the foam layer to fail to be inserted between the side beam and the battery module. The combination of the plastic sheet 2 and the elastic support layer 1 can improve the overall rigidity of the filling component 100, making it easier to insert the filling component 100 into the gap between the side beam and the battery module, thereby reducing the difficulty of assembling the battery pack.

[0035] It can be understood that compared with the prior art that only uses a foam layer to fill the gap between the battery module and the side beam, the filling component 100 of the utility model uses an elastic support layer 1 and a plastic sheet 2 at the same time. When the gap between the battery module and the side beam is the same, the use of the elastic support layer 1 can be relatively reduced, thereby saving the production cost of the filling component 100 and reducing the production cost of the battery pack.

[0036] Further, see Attachment Figure 2 As shown in the attached reference Figure 1The plastic bag 3 covers the elastic support layer 1 and the plastic sheet 2. The plastic bag 3 can seal the filling component 100. The elastic support layer 1 and the plastic sheet 2 can be vacuumed and compressed in the plastic bag 3, thereby reducing the thickness of the filling component 100 and further improving the overall rigidity of the filling component 100, thereby further reducing the difficulty of assembling the filling component 100, and facilitating the assembly of the filling component 100 into the gap between the battery module and the side beam. It is understandable that after the filling component 100 is installed between the battery module and the side beam, the plastic bag 3 can be broken to allow the elastic support layer 1 to expand naturally, so that the battery cell is stressed, meeting the battery cell BOL and EOL expansion force requirements, and extending the service life of the battery pack.

[0037] It should be noted that, according to different design requirements, a combination of plastic sheets 2 of different thicknesses and elastic support layers 1 of different thicknesses may be selected for vacuuming to adapt to different gap widths between battery modules and side beams.

[0038] For example, when the spacing between the battery module and the side beam is 4mm-6mm, according to the expansion force requirements of the battery cell, it is necessary to use a foam layer with a raw material thickness of 10mm in the prior art, and the thickness of the 10mm foam layer after vacuuming is about 3.7mm; while using the filling component 100 of the utility model, a plastic sheet 2 with a thickness of 2mm and an elastic support layer 1 with a raw material thickness of 4mm can be selected. The thickness of the 4mm elastic support layer 1 after vacuuming is about 1.6mm, which relatively reduces the usage of the elastic support layer 1. On the basis of ensuring the supporting performance of the filling component 100, the production cost of the filling component 100 is relatively reduced.

[0039] According to the filling component 100 of the embodiment of the utility model, by providing the filling component 100 between the side beam and the battery module, the filling component 100 includes an elastic supporting layer 1, a plastic sheet 2 and a plastic packaging bag 3, the plastic sheet 2 and the elastic supporting layer 1 are stacked, and the plastic packaging bag 3 covers the elastic supporting layer 1 and the plastic sheet 2, so that before the filling component 100 is installed between the battery module and the side beam, the thickness of the filling component 100 can be reduced, the overall stiffness of the filling component 100 can be improved, and the difficulty of assembling the filling component 100 can be reduced, so that the filling component 100 can be easily assembled into the gap between the battery module and the side beam, and after the filling component 100 is installed between the battery module and the side beam, the elastic supporting layer 1 can expand naturally to support the battery module, so that the battery cell is stressed, and the BOL and EOL expansion force requirements of the battery cell are met, thereby extending the service life of the battery pack, and the filling component 100 can play a buffering role when the battery pack is bumped or hit to protect the battery module. Moreover, compared with the prior art of using only a foam layer to fill the gap between the battery module and the side beam, using both the elastic support layer 1 and the plastic sheet 2 can relatively reduce the amount of the elastic support layer 1, save the production cost of the filling component 100, and reduce the production cost of the battery pack.

[0040] In some embodiments of the utility model, the elastic support layer 1 is a foam layer, which is low-cost, light-weight and elastic, and can relatively reduce the production cost of the filling component 100, ensure the supporting effect of the filling component 100, make the battery cell bear force, meet the battery cell BOL and EOL expansion force requirements, and extend the service life of the battery pack.

[0041] In some embodiments of the present invention, refer to the attached Figure 2 As shown, the elastic support layer 1 is arranged on the side of the plastic sheet 2 facing the battery module or the side beam, which can provide support force for the battery module, so that the battery cell is stressed, meet the BOL and EOL expansion force requirements of the battery cell, and extend the service life of the battery pack.

[0042] Furthermore, the elastic support layer 1 includes a first elastic support layer and a second elastic support layer, and the first elastic support layer and the second elastic support layer are respectively located on two opposite sides of the plastic sheet 2 in the thickness direction, so that the side of the filling component 100 opposite to the battery module and the side of the filling component 100 opposite to the side beam are both elastic support layers 1, which can provide support force for the battery module, make the battery cell bear force, meet the BOL and EOL expansion force requirements of the battery cell, and extend the service life of the battery pack.

[0043] It should be noted that when the spacing between the battery module and the side beam is the same, no matter the elastic support layer 1 is only arranged on the side of the plastic sheet 2 facing the battery module or the side beam, or the elastic support layer 1 includes the first elastic support layer and the second elastic support layer, and the first elastic support layer and the second elastic support layer are respectively arranged on the two opposite sides of the thickness direction of the plastic sheet 2, the elastic support layer 1 has the same expansion force and the same supporting effect on the battery module, which can ensure that the battery cell is subjected to force, meet the BOL and EOL expansion force requirements of the battery cell, and extend the service life of the battery pack.

[0044] In some embodiments of the present invention, refer to the attached Figure 2 As shown, the elastic support layer 1 and the plastic sheet 2 have the same shape and size and their outer edges are flush, which can facilitate the plastic bag 3 to cover the elastic support layer 1 and the plastic sheet 2, facilitate the assembly of the filling component 100, and avoid uneven force on the filling component 100, thereby ensuring the supporting effect of the filling component 100 on the battery module, making the battery cell stressed and meeting the BOL and EOL expansion force requirements of the battery cell, thereby ensuring the service life of the battery pack.

[0045] In some embodiments of the present invention, the plastic sheet 2 is a PC (polycarbonate) sheet, which has low cost, high structural strength, and excellent insulation performance, and can ensure the overall rigidity and safety of the filling component 100.

[0046] In some embodiments of the present invention, refer to the attached Figure 2As shown, the plastic sealing bag 3 includes a first plastic sealing sheet 31 and a second plastic sealing sheet 32, and the first plastic sealing sheet 31 and the second plastic sealing sheet 32 ​​both include a plastic sealing body 33 and a plastic sealing connecting portion 34 arranged on the outer periphery of the plastic sealing body 33, and the plastic sealing connecting portion 34 extends along the circumferential direction of the plastic sealing body 33. The first plastic sealing sheet 31 and the second plastic sealing sheet 32 ​​are stacked and arranged, and the plastic sealing connecting portions 34 of the first plastic sealing sheet 31 and the second plastic sealing sheet 32 ​​are connected. The elastic supporting layer 1 and the plastic sheet 2 are located between the two plastic sealing bodies 33. The plastic sealing bodies 33 of the first plastic sealing sheet 31 and the second plastic sealing sheet 32 ​​can be in the thickness direction of the filling component 100 (refer to the attached Figure 2 The first plastic sealing sheet 31 and the second plastic sealing sheet 32 ​​can fix the elastic supporting layer 1 and the plastic sheet 2 in the first direction (as shown in the figure), and the plastic sealing connecting part 34 of the first plastic sealing sheet 31 and the second plastic sealing sheet 32 ​​can limit the elastic supporting layer 1 and the plastic sheet 2 in the circumferential direction of the filling component 100, ensuring that the elastic supporting layer 1 and the plastic sheet 2 are respectively arranged relative to the battery module and the side beam, thereby ensuring the supporting effectiveness of the filling component 100.

[0047] In a further embodiment of the present invention, refer to the attached Figure 1 and attached Figure 2 As shown, the plastic sealing connection part 34 has a notch 341. The notch 341 is set to facilitate tearing open the plastic sealing connection part 34 after the filling component 100 is installed between the battery module and the side beam, so that air enters the plastic sealing part 33, so that the elastic supporting layer 1 expands naturally, and the battery cell is stressed, thereby meeting the battery cell BOL and EOL expansion force requirements and extending the service life of the battery pack.

[0048] In a further embodiment of the present invention, refer to the attached Figure 1 and attached Figure 2 As shown, there are multiple notches 341 spaced apart along the circumferential direction of the plastic sealing connection part 34 , so that the user can freely select notches 341 at different positions to tear open the plastic sealing connection part 34 according to the arrangement of different battery packs, further facilitating the breaking of the plastic sealing bag 3 .

[0049] In some embodiments of the present invention, the elastic support layer 1 and the plastic sheet 2 are made in one piece, which can reduce the production cost of the filling component 100, facilitate the production and processing of the filling component 100, and reduce the assembly difficulty and production cost of the battery pack.

[0050] The present invention also provides a battery pack having the filling assembly 100 of the above embodiment.

[0051] The battery pack according to the embodiment of the present invention includes a housing, a battery module and the aforementioned filling assembly 100 .

[0052] Specifically, the shell can protect the internal structure of the battery pack, prevent the internal structure of the battery pack from being exposed and damaged, and help extend the service life of the battery pack. Furthermore, the shell has a side beam, the battery module is arranged in the shell and is spaced from the side beam, and the filling component 100 is arranged between the side beam and the battery module, which can provide support for the battery module, so that the battery cell is stressed, meet the battery cell BOL (electric vehicle battery pack initial life test) and EOL (electric vehicle battery pack end of life test) stress requirements, extend the service life of the battery pack, and can separate the battery module from the side beam, play a buffering role when the battery pack is bumped or hit, protect the battery module, and ensure the low temperature characteristics of the battery pack.

[0053] According to the battery pack of the embodiment of the utility model, the above-mentioned filling component 100 is provided, and the filling component 100 is provided between the side beam and the battery module. The filling component 100 includes an elastic supporting layer 1, a plastic sheet 2 and a plastic packaging bag 3. The plastic sheet 2 and the elastic supporting layer 1 are stacked, and the plastic packaging bag 3 covers the elastic supporting layer 1 and the plastic sheet 2. Before the filling component 100 is installed between the battery module and the side beam, the thickness of the filling component 100 can be reduced, the overall stiffness of the filling component 100 can be improved, and the assembly difficulty of the filling component 100 can be reduced, so that the filling component 100 can be easily assembled into the gap between the battery module and the side beam. After the filling component 100 is installed between the battery module and the side beam, the elastic supporting layer 1 can expand naturally to support the battery module, so that the battery cell is stressed, and the BOL and EOL expansion force requirements of the battery cell are met, thereby extending the service life of the battery pack. It can also play a buffering role when the battery pack is bumped or hit to protect the battery module. Moreover, compared with the prior art of using only a foam layer to fill the gap between the battery module and the side beam, using both the elastic support layer 1 and the plastic sheet 2 can relatively reduce the amount of the elastic support layer 1, save the production cost of the filling component 100, and reduce the production cost of the battery pack.

[0054] In some embodiments of the present invention, the battery module includes a first direction (such as Figure 2 A plurality of battery cells are arranged in a vertical direction (as shown in the figure), and filling components 100 are provided at both ends of the battery module along the first direction, so that the battery module can be supported from both ends of the battery module along the first direction, thereby extending the service life of the battery pack.

[0055] In a specific example, four battery modules are provided in the battery pack, each battery module includes a plurality of battery cells arranged along a first direction, and each battery module is provided with a filling assembly 100 at both ends along the first direction. There are a total of eight filling assemblies 100 in the battery pack, and each filling assembly 100 can save production costs, thereby reducing the production cost of the battery pack.

[0056] The filling assembly 100 and other structures and operations of the battery pack according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0058] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A filling component, characterized in that: For a battery pack, the battery pack comprises a shell and a battery module, the shell has a side beam, the battery module is arranged in the shell and is spaced from the side beam, the filling component is arranged between the side beam and the battery module and comprises: elastic support layer; A plastic sheet, wherein the plastic sheet and the elastic support layer are stacked in a direction from the battery module to the side beam; A plastic sealing bag covers the elastic supporting layer and the plastic sheet.

2. The filling assembly according to claim 1, characterized in that The elastic supporting layer is a foam layer.

3. The filling assembly according to claim 1, characterized in that The elastic support layer is arranged on a side of the plastic sheet facing the battery module or the side beam; Alternatively, the elastic supporting layer comprises a first elastic supporting layer and a second elastic supporting layer, and the first elastic supporting layer and the second elastic supporting layer are respectively located on two opposite sides of the plastic sheet in a thickness direction.

4. The filling assembly according to claim 1, characterized in that The elastic supporting layer and the plastic sheet have the same shape and size and their outer edges are flush.

5. The filling assembly according to claim 1, characterized in that The plastic sheet is a PC sheet.

6. The filling assembly according to claim 1, characterized in that The plastic bag comprises: A first plastic sealing sheet and a second plastic sealing sheet, each of the first plastic sealing sheet and the second plastic sealing sheet comprises a plastic sealing main part and a plastic sealing connecting part arranged on the outer periphery of the plastic sealing main part, the plastic sealing connecting part extends along the circumferential direction of the plastic sealing main part, the first plastic sealing sheet and the second plastic sealing sheet are stacked and the plastic sealing connecting parts of the first plastic sealing sheet and the second plastic sealing sheet are connected, and the elastic supporting layer and the plastic sheet are located between the two plastic sealing main parts.

7. The filling assembly according to claim 6, characterized in that The plastic sealing connection portion is provided with a notch.

8. The filling assembly according to claim 7, characterized in that The notches are multiple and spaced apart along the circumferential direction of the plastic sealing connection portion.

9. A battery pack, characterized in that: include: A shell having the side beam; A battery module, wherein the battery module is disposed in the housing and spaced apart from the side beam; According to any one of claims 1-8, the filling assembly is arranged between the side beam and the battery module.

10. The battery pack according to claim 9, characterized in that: The battery module includes a plurality of battery cells arranged along a first direction, and the filling components are disposed at both ends of the battery module along the first direction.

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