Battery module and battery pack having the same

Abstract

This utility model discloses a battery module and a battery pack having the same. The battery module includes: a chassis; an insulating component disposed within the chassis, the insulating component having multiple placement cavities, each containing a battery cell; and a receiving cavity defined between the outer peripheral wall of the insulating component and the inner peripheral wall of the chassis; and a stop block filled within the receiving cavity. According to this utility model, by directly placing the battery cells within the placement cavities, the battery cells can be arranged more compactly, achieving an integrated and modular design, simplifying the structural design of the battery module, improving the space utilization and energy density of the battery module, enabling rapid adaptation to customized customer needs, and improving the production efficiency of the battery module. By defining a receiving cavity between the outer peripheral wall of the insulating component and the inner peripheral wall of the chassis, and filling the receiving cavity with the stop block, the probability of the insulating component shaking within the chassis can be reduced, thereby limiting and fixing the battery cells, improving the reliability and safety of the battery module.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery module and a battery pack having the same. Background Technology

[0002] Currently, most mainstream residential energy storage battery packs on the market adopt a small modular design, which means that multiple small battery modules are combined into a complete battery system through series and parallel connections. Although this design has a certain degree of flexibility in early technology iterations, as the market's requirements for product performance, cost, and user experience increase, its shortcomings such as low production efficiency and low space utilization have become increasingly prominent. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a battery module that eliminates the traditional module steps, thereby improving the space utilization and production efficiency of the battery module, enabling the limiting and fixing of battery cells, and improving the reliability and safety of the battery module.

[0004] This utility model also proposes a battery pack, which includes the battery module described above.

[0005] The battery module according to an embodiment of the present utility model includes: a chassis; an insulating member disposed within the chassis, the insulating member having a plurality of placement cavities, each placement cavity containing a battery cell, and a receiving cavity defined between the outer peripheral wall of the insulating member and the inner peripheral wall of the chassis; and a stop block filling the receiving cavity.

[0006] According to the battery module of this utility model embodiment, by directly placing the battery cells in the placement cavity, the traditional module process is eliminated, allowing for a more compact arrangement of the cells. This enables integrated and modular design, simplifies the structural design of the battery module, improves space utilization and energy density, and allows for rapid adaptation to customized customer needs, thereby increasing the production efficiency of the battery module. By defining a receiving cavity between the outer peripheral wall of the insulating component and the inner peripheral wall of the chassis, and filling the receiving cavity with a stop block, the probability of the insulating component shaking within the chassis can be reduced, thus limiting and fixing the battery cells, improving the reliability and safety of the battery module.

[0007] In addition, the battery module according to this utility model may also have the following additional technical features: In some embodiments, the stop block has a hollow structure.

[0008] In some embodiments, the block is provided with a positive mounting post and a negative mounting post, and the battery module further includes a positive connection bar and a negative connection bar connected to the battery cell. One end of the positive connection bar is fixed to the positive mounting post, and one end of the negative connection bar is fixed to the negative mounting post.

[0009] In some embodiments, the stop block is connected to the chassis by fasteners; and / or, the outer surface of the stop block is coated with an insulating coating.

[0010] In some embodiments, the receiving cavity is located on one side of the battery module along a first direction, and the receiving cavity is located on one side or in the middle region of the battery module along a second direction, wherein the first direction and the second direction are perpendicular to each other.

[0011] In some embodiments, one or more of the battery cells are disposed within the same placement cavity.

[0012] In some embodiments, the insulating element includes: an insulating body disposed within the chassis, the insulating body having a plurality of placement slots, the side of the placement slots facing away from the chassis being open; and an insulating top cover covering the open side of the plurality of placement slots to define a plurality of placement cavities together with the insulating body.

[0013] In some embodiments, the battery module further includes an upper insulating sheet that covers the side surface of the insulating top cover facing away from the chassis and is connected to the insulating top cover via a connector.

[0014] In some embodiments, the plurality of battery cells are divided into multiple groups of battery cells arranged along a first direction, and the plurality of battery cells in each group of battery cells are arranged along a second direction. The battery module further includes a pressure strip, which extends along the second direction and is fixed at both ends to the chassis and / or the stop block. The pressure strip is provided on the side of at least one group of battery cells away from the chassis. The pressure strip is used to restrict the battery cells from coming out in the direction away from the chassis. The first direction and the second direction are perpendicular to each other.

[0015] This utility model also provides a battery pack having the above-described embodiments.

[0016] According to the battery pack of this utility model embodiment, by incorporating the aforementioned battery module, the battery cells are directly placed within the placement cavity, eliminating the traditional module step. This allows for a more compact arrangement of the battery cells, enabling integrated and modular design. It simplifies the structural design of the battery module, improves space utilization and energy density, and allows for rapid adaptation to customized customer needs. This also increases the production efficiency of the battery module and facilitates the production and processing of the battery pack. By defining a receiving cavity between the outer peripheral wall of the insulating component and the inner peripheral wall of the chassis, and filling the receiving cavity with a stop block, the probability of the insulating component shaking within the chassis is reduced. This limits and fixes the battery cells, improving the reliability and safety of the battery module and ensuring the safety performance of the battery pack.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a perspective view of the battery module according to the first embodiment of the present invention; Figure 2 This is an exploded view of the battery module according to the first embodiment of the present invention; Figure 3 This is an exploded view of the battery module according to the second embodiment of the present invention; Figure 4 This is an exploded view of a battery module according to the third embodiment of the present invention; Figure 5 This is a perspective view of a battery module according to the first embodiment of the present invention, wherein the chassis is not shown.

[0019] Figure label: 100. Battery module; 101. Battery cell; 102. Terminal post; 103. Explosion-proof valve; 1. Chassis; 11. Receiving cavity; 2. Insulating component; 20. Placement cavity; 21. Insulating body; 211. Frame; 212. Partition; 213. Placement slot; 22. Insulating top cover; 3. Stop block; 31. Main positive mounting post; 32. Main negative mounting post; 33. Cavity; 4. Main positive connection row; 5. Total negative connection row; 6. Apply insulating sheet; 7. Pressure strip; 71. Crimping part; 711. Explosion-proof valve clearance hole; 72. Connecting part; 8. Hanging rings; 9. Electrical connector. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The battery module 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0025] like Figure 1 and Figure 2 As shown, the battery module 100 according to an embodiment of the present invention includes a chassis 1, an insulating component 2, and a stop block 3.

[0026] Specifically, see the attached document. Figure 1and attached Figure 2 As shown, the chassis 1 serves as a support structure for the battery module 100, providing an installation base for the other components of the battery module 100. The insulating component 2 is located inside the chassis 1 and has multiple placement cavities 20. Each placement cavity 20 contains a battery cell 101. The multiple placement cavities 20 can physically isolate the battery cells 101 in different placement cavities 20, reducing local overheating caused by heat conduction between battery cells 101, preventing the spread of thermal runaway of battery cells 101, and improving the safety of the battery module 100. Furthermore, the insulating component 2 can play a buffering and supporting role to a certain extent, protecting the battery cells 101 from mechanical damage.

[0027] Further, see attached document. Figure 1 and attached Figure 2 As shown, a receiving cavity 11 is defined between the outer peripheral wall of the insulating component 2 and the inner peripheral wall of the chassis 1. The stop block 3 is filled in the receiving cavity 11. The stop block 3 can be used to fill the empty space between the outer peripheral wall of the insulating component 2 and the inner peripheral wall of the chassis 1, reducing the probability of the insulating component 2 shaking in the chassis 1, thereby limiting and fixing the battery cell 101, and improving the reliability and safety of the battery module 100.

[0028] It should be noted that the reference appendix Figure 2 As shown, the battery cell 101 is responsible for storing and releasing electrical energy. By placing multiple battery cells 101 directly in the placement cavity 20, the traditional module process is eliminated, which allows the battery cells 101 to be arranged more closely. This enables integrated and modular design, simplifies the structural design of the battery module 100, improves the space utilization and energy density of the battery module 100, and can quickly adapt to customers' customized needs, thereby improving the production efficiency of the battery module 100.

[0029] It should be noted that in the direction perpendicular to the height of the battery module (refer to the attached diagram), Figure 2 On the plane (shown in the third direction), the block 3 fills the empty space between the outer peripheral wall of the insulating component 2 and the inner peripheral wall of the chassis 1. However, the height of the block 3 in the height direction of the battery module 100 is not specifically limited. In the height direction of the battery module 100, the side surface of the block 3 away from the inner bottom wall of the chassis 1 is the first surface, and the side surface of the chassis 1 furthest from the inner bottom wall of the chassis 1 is the second surface. The first surface can be located on the side of the second surface closer to the inner bottom wall of the chassis 1, or the first surface can be flush with the second surface.

[0030] Optionally, the multiple battery cells 101 of this utility model can be connected in series or in parallel, without further limitation here.

[0031] According to the battery module 100 of this utility model embodiment, by directly placing the battery cell 101 in the placement cavity 20, the traditional module step is eliminated, allowing the battery cell 101 to be arranged more closely. This enables integrated and modular design, simplifies the structural design of the battery module 100, improves the space utilization and energy density of the battery module 100, and allows for rapid adaptation to customized customer needs, thereby improving the production efficiency of the battery module 100. By defining a receiving cavity 11 between the outer peripheral wall of the insulating member 2 and the inner peripheral wall of the chassis 1, and filling the receiving cavity 11 with the stop block 3, the probability of the insulating member 2 shaking within the chassis 1 can be reduced, thereby limiting and fixing the battery cell 101, improving the reliability and safety of the battery module 100.

[0032] In some embodiments of this utility model, reference is made to the appendix. Figure 5 As shown, the block 3 has a hollow structure. On the one hand, it can reduce the weight of the block 3 itself as much as possible while ensuring the positioning effect of the block 3 on the insulating part 2, which is conducive to the lightweight design of the battery module 100. On the other hand, the hollow design can relatively reduce the wall thickness of the block 3 itself, which makes it easier to connect and fix the block 3 with other parts of the battery module 100, thereby reducing the assembly difficulty of the block 3.

[0033] In a specific example, see Appendix Figure 1 and attached Figure 2 As shown, the chassis 1 is generally rectangular, and the stop block 3 is also rectangular, which fits the shape of the chassis 1 well to fill the gap between the outer peripheral wall of the insulating component 2 and the inner peripheral wall of the chassis 1. Figure 5 As shown, the stop block 3 has a cavity 33 inside, and the lower side of the cavity 33 is open. It can achieve the positioning effect of the insulating component 2 through a simple structure, and can reduce the weight of the stop block 3 as much as possible, which is beneficial to the lightweight design of the battery module 100.

[0034] In some embodiments of this utility model, reference is made to the appendix. Figure 1 and attached Figure 2 As shown, the block 3 is provided with a positive mounting post 31 and a negative mounting post 32. The battery module 100 also includes a positive connection bar 4 and a negative connection bar 5 connected to the battery cell 101. One end of the positive connection bar 4 is fixed to the positive mounting post 31, and one end of the negative connection bar 5 is fixed to the negative mounting post 32. By providing a positive mounting post 31 and a negative mounting post 32 on the block 3, the positive mounting post 31 serves as the fixed point for the positive connection, and the negative mounting post 32 serves as the fixed point for the negative connection. This can systematically solve the problems of low connection reliability, large space occupation, and complex maintenance of traditional pillarless designs.

[0035] Furthermore, since the side surface of the stop block 3 facing away from the inner bottom wall of the chassis 1 is the first surface in the height direction of the battery module 100, and the side surface of the cell 101 facing away from the inner bottom wall of the chassis 1 is the third surface, and the first surface is located on the side of the third surface close to the inner bottom wall of the chassis 1, setting the main positive mounting post 31 and the main negative mounting post 32 on the stop block 3 can also increase the height of the main positive mounting post 31 and the main negative mounting post 32, which facilitates the connection of the main positive mounting post 31 to the main positive connection row 4 and the connection of the main negative mounting post 32 to the main negative connection row 5, thereby facilitating the electrical connection of the main positive connection row 4 to components such as switches and fuses.

[0036] In some embodiments of this utility model, reference is made to the appendix. Figure 1 and attached Figure 2 As shown, the stop block 3 is connected to the chassis 1 by fasteners. The fastener connection method has the advantages of simple structure, convenient installation and low cost. It can ensure the reliability and stability of the connection between the stop block 3 and the chassis 1, improve the safety of the battery module 100, extend the service life of the battery module 100, and facilitate the assembly and removal of the stop block 3 from the chassis 1, thereby reducing the assembly and maintenance difficulty of the battery module 100 and improving the assembly and maintenance efficiency of the battery module 100.

[0037] In some embodiments of this utility model, the outer surface of the block 3 is coated with an insulating coating, which can form a high resistance barrier to further prevent short circuits caused by potential difference between the battery cell 101 and the block 3. Furthermore, when the battery module 100 is under maintenance, the presence of the insulating coating can prevent maintenance personnel from being electrocuted by contacting electrical components, thereby improving safety.

[0038] In some embodiments of this utility model, reference is made to the appendix. Figure 2 Appendix Figure 3 and attached Figure 4 As shown, the receiving cavity 11 is located in the battery module 100 along the first direction (e.g., Figure 2 (as shown) on one side, and the receiving cavity 11 is located on the battery module 100 along the second direction (as shown). Figure 2 As shown, the first direction and the second direction are perpendicular to each other. Due to different customer needs, the placement of components such as switches and fuses, as well as the arrangement and connection between cells 101, may be different. By adjusting the position of the receiving cavity 11, the position of the block 3 can be flexibly adjusted to meet the arrangement and connection between cells 101 in different situations. This facilitates the electrical connection of the main positive connection row 4 connected to the block 3 with components such as switches and fuses, thereby simplifying the process, optimizing the design cost of the battery module 100, greatly shortening the design cycle of the battery module 100, solving the problem of many types of energy storage battery modules in the existing technology, and achieving the goal of reliably and stably responding to the differentiated needs of customers.

[0039] The first direction is the length direction of the battery module 100, the second direction is the width direction of the battery module 100, and both the first and second directions are perpendicular to the height direction of the battery module 100.

[0040] Of course, this utility model is not limited to this. After the battery module 100 is assembled, if the user has a need to modify the layout or the battery module 100 needs to be reused, the components inside the battery module 100 can be disassembled and reassembled to adjust the internal layout of the battery module 100.

[0041] In some embodiments of this utility model, one or more battery cells 101 are provided in the same placement cavity 20. It is understood that when only one battery cell 101 is provided in the same placement cavity 20, such as... Figure 2 As shown, the number of placement cavities 20 corresponds one-to-one with the number of battery cells 101, enabling physical isolation between any two adjacent battery cells 101. This minimizes localized overheating caused by heat conduction between battery cells 101, prevents the spread of thermal runaway from battery cells 101, and improves the electrical safety performance of the battery module 100. When multiple battery cells 101 are located in the same placement cavity 20, they share the space within the cavity 20, which can relatively reduce structural redundancy and improve the space utilization of the battery module 100. For example, the number of battery cells 101 located in the same placement cavity 20 can be one, two, three, or four.

[0042] It should be noted that when multiple battery cells 101 are provided in the same placement cavity 20, two adjacent battery cells 101 in the same placement cavity 20 can be directly attached to each other, or they can be separated by other insulating spacers. No further restrictions are imposed here.

[0043] In some embodiments of this utility model, reference is made to the appendix. Figure 2 As shown, the insulating component 2 includes an insulating body 21 and an insulating top cover 22. The insulating body 21 is disposed inside the chassis 1 and has multiple placement slots 213. The side of the placement slots 213 facing away from the chassis 1 is open. The insulating top cover 22 covers the open side of the multiple placement slots 213 to define multiple placement cavities 20 together with the insulating body 21. During the assembly process of the battery module 100, the insulating body 21 and multiple battery cells 101 can be placed first, and then the placement slots 213 can be blocked by the insulating top cover 22 to achieve the positioning of multiple battery cells 101. By making the insulating body 21 and the insulating top cover 22 a separate design, the insulating top cover 22 can be connected to the insulating body after the battery cells 101 are assembled, thereby ensuring the normal assembly of the battery cells 101 and preventing multiple battery cells 101 from coming off towards the side facing away from the chassis 1.

[0044] In a specific example, see Appendix Figure 2 As shown, the insulating body 21 includes a frame 211 and a partition 212. The frame 211 extends along the circumferential direction of the chassis 1. The outer peripheral wall of the frame 211 and the inner peripheral wall of the chassis 1 define a receiving cavity 11. Three sets of battery cell groups are arranged in the frame 211 along the first direction. Multiple battery cells 101 in each set of battery cells are arranged along the second direction. A partition 212 is provided between any two adjacent battery cells 101, thereby maximizing the positioning effect of the insulating component 2 on a single battery cell 101 and further improving electrical safety performance.

[0045] In a further embodiment of this utility model, reference is made to the appendix. Figure 2 As shown, in conjunction with the reference appendix Figure 1 The battery module 100 also includes an upper insulating sheet 6, which covers the side of the insulating top cover 22 facing away from the chassis 1 and is connected to the insulating top cover 22 via a connector. It can be understood that the battery module 100 also includes multiple electrical connecting pieces 9, which are disposed on the upper side of the insulating top cover 22. The insulating top cover 22 is provided with multiple terminal clearance holes, which are respectively opposite to the positive and negative terminals 102 of multiple battery cells 101. The multiple electrical connecting pieces 9 electrically connect adjacent battery cells 101 from the terminal clearance holes. Therefore, by covering the upper side of the insulating top cover 22 with the upper insulating sheet 6, the electrical connecting pieces 9 can be insulated from the upper cover or other components through the upper insulating sheet 6, thereby improving the safety performance of the battery module 100 and extending the service life of the battery module 100.

[0046] In a specific example, the connector is a cable tie. The upper insulating sheet 6 is fixed by connecting the cable ties, which can realize the quick positioning and fastening of the upper insulating sheet 6, ensure the stability and reliability of the upper insulating sheet 6, reduce the assembly difficulty of the upper insulating sheet 6, improve the cycle time of the battery module 100 production line, and relatively reduce the production and assembly cost of the upper insulating sheet 6, thereby reducing the overall cost of the battery module 100.

[0047] In some embodiments of this utility model, the insulating component 2 is bonded and fixed inside the chassis 1. On the one hand, this can enhance the connection reliability between the insulating component 2 and the chassis 1, avoid local stress concentration, improve the reliability of fixing the insulating component 2, and enhance the impact resistance of the battery module 100. On the other hand, the bonding process does not require heavy mechanical connectors, which can relatively reduce the overall weight of the battery module 100, which is beneficial to the lightweight design of the battery module 100.

[0048] In some embodiments of this utility model, reference is made to the appendix. Figure 2As shown, multiple battery cells 101 are divided into multiple groups of battery cells arranged along a first direction. Multiple battery cells 101 in each group of battery cells are arranged along a second direction. The battery module 100 also includes a pressure strip 7. The pressure strip 7 extends along the second direction and is fixed at both ends to the chassis 1 and / or the stop block 3. At least one group of battery cells has a pressure strip 7 on the side away from the chassis 1, and the pressure strip 7 is pressed against the side of the battery cell group away from the chassis 1. The pressure strip 7 is used to restrict the battery cell group from coming out in the direction away from the chassis 1, so as to avoid short circuit or internal damage to the battery cells 101 caused by collision or vibration, and can improve the reliability of the battery module 100. The first direction and the second direction are perpendicular to each other.

[0049] The first direction is the length direction of the battery module 100, the second direction is the width direction of the battery module 100, and both the first and second directions are perpendicular to the height direction of the battery module 100.

[0050] In a specific example, see Appendix Figure 2 As shown, the battery module 100 contains sixteen battery cells 101. These sixteen battery cells 101 are divided into three groups arranged along the first direction. The three groups are the first group, the second group, and the third group, arranged sequentially along the first direction. The first and second groups each contain six battery cells 101, and the third group contains four battery cells 101. The four battery cells 101 in the third group are located on one side of the stop block 3 along the second direction. The multiple battery cells 101 in each group are arranged along the second direction. Each group has a pressure strip 7 above it. The two ends of the pressure strip 7 above the first and second groups are connected to the chassis 1 by fasteners, while one end of the pressure strip 7 above the third group is fixed to the stop block 3, and the other end is fixed to the chassis 1.

[0051] Further, see attached document. Figure 2 Appendix Figure 3 and attached Figure 4 As shown, the pressure strip 7 includes a crimping portion 71 and a connecting portion 72. The crimping portion 71 is crimped onto the upper side of the insulating member 2 and extends along the second direction. The connecting portion 72 is connected to the crimping portion 71 along its length (see attached diagram). Figure 2 The two ends of the second direction shown are used to connect with the chassis 1 and / or the stop block 3. Foam is provided between the crimping part 71 and the insulating part 2. The foam has excellent elasticity and energy absorption capacity, which can effectively attenuate vibration and impact energy and protect the battery cell 101 from mechanical stress damage.

[0052] Furthermore, see the attached document. Figure 2As shown, each battery cell 101 is equipped with an explosion-proof valve 103. When the temperature rises and the pressure increases suddenly due to a short circuit, overcharging or external impact inside the battery cell 101, the explosion-proof valve 103 can release high-temperature gas and electrolyte in a directional manner by bursting or melting to prevent the battery cell 101 from exploding. The crimping part 71 has a plurality of explosion-proof valve clearance holes 711 arranged at intervals. In the vertical direction, the explosion-proof valve clearance holes 711 are arranged opposite to the explosion-proof valve 103 of the battery cell 101, which can provide an unobstructed exhaust channel for the explosion-proof valve 103, ensuring that the high-temperature gas is discharged smoothly, and reducing the impact of the impact force generated when the explosion-proof valve 103 is activated on the pressure bar 7.

[0053] It should be noted that by making the multiple electrical connecting pieces 9 and the insulating top cover 22 separate components, the insulating top cover 22 can be adjusted according to different arrangement and connection schemes, improving the assembly flexibility of the battery module 100 to adapt to various arrangements of the battery module 100. Preferably, the insulating top cover 22 may include multiple sub-insulating pieces, the number of which corresponds one-to-one with the number of battery cells, so that the shape of the sub-insulating pieces matches the shape of the battery cells, saving materials and reducing manufacturing costs.

[0054] In some embodiments of this utility model, reference is made to the appendix. Figure 1 and attached Figure 2 As shown, the battery module 100 also includes a plurality of lifting rings 8, which are detachably mounted on the chassis 1 and spaced apart along the circumferential direction of the chassis 1. When the battery module 100 is assembled onto the battery pack or removed from the battery pack, the lifting rings 8 are assembled onto the chassis 1. The lifting rings 8 can provide a safe and convenient lifting point, while taking into account flexibility and functionality. After the battery module 100 is placed in the designated position, the lifting rings 8 can be quickly removed to avoid occupying space or interfering with other components.

[0055] This utility model also proposes a battery pack having the battery module 100 described in the above embodiments.

[0056] The battery pack is installed on the electrical device, for example, the electrical device can be a vehicle, and the battery pack can be installed at the bottom of the vehicle body.

[0057] According to the battery pack of this utility model embodiment, by providing the aforementioned battery module 100, the battery cells 101 are directly placed in the placement cavity 20, eliminating the traditional module step. This allows for a more compact arrangement of the battery cells 101, enabling integrated and modular design, simplifying the structural design of the battery module 100, improving the space utilization and energy density of the battery module 100, quickly adapting to customized customer needs, improving the production efficiency of the battery module 100, and facilitating the production and processing of the battery pack. By defining a receiving cavity 11 between the outer peripheral wall of the insulating member 2 and the inner peripheral wall of the chassis 1, and filling the receiving cavity 11 with the stop block 3, the probability of the insulating member 2 shaking within the chassis 1 can be reduced, thereby limiting and fixing the battery cells 101, improving the reliability and safety of the battery module 100, and ensuring the safety performance of the battery pack.

[0058] Other components and operations of the battery module 100 and battery pack according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery module, characterized in that, include: Chassis (1); An insulating component (2) is disposed in the chassis (1). The insulating component (2) has a plurality of placement cavities (20). A battery cell (101) is disposed in the placement cavity (20). A receiving cavity (11) is defined between the outer peripheral wall of the insulating component (2) and the inner peripheral wall of the chassis (1). A stop block (3) is filled in the receiving cavity (11).

2. The battery module according to claim 1, characterized in that, The stop block (3) has a hollow structure.

3. The battery module according to claim 1, characterized in that, The stop block (3) is provided with a positive mounting post (31) and a negative mounting post (32). The battery module (100) also includes a positive connection bar (4) and a negative connection bar (5) connected to the battery cell (101). One end of the positive connection bar (4) is fixed to the positive mounting post (31), and one end of the negative connection bar (5) is fixed to the negative mounting post (32).

4. The battery module according to claim 1, characterized in that, The stop block (3) is connected to the chassis (1) by fasteners; And / or, the outer surface of the stop (3) is coated with an insulating coating.

5. The battery module according to any one of claims 1-4, characterized in that, The receiving cavity (11) is located on one side of the battery module (100) along a first direction, and the receiving cavity (11) is located on one side or in the middle region of the battery module (100) along a second direction, wherein the first direction and the second direction are perpendicular to each other.

6. The battery module according to any one of claims 1-4, characterized in that, One or more of the battery cells (101) are disposed within the same placement cavity (20).

7. The battery module according to any one of claims 1-4, characterized in that, The insulating element (2) includes: An insulating body (21) is disposed in the chassis (1). The insulating body (21) has a plurality of placement slots (213), and the side of the placement slots (213) facing away from the chassis (1) is open. An insulating top cover (22) covers the open side of the plurality of placement slots (213) to define the plurality of placement cavities (20) together with the insulating body (21).

8. The battery module according to claim 7, characterized in that, The battery module (100) also includes: Upper insulating sheet (6) covers the side surface of the insulating top cover (22) opposite to the chassis (1) and is connected to the insulating top cover (22) by a connector.

9. The battery module according to any one of claims 1-4, characterized in that, The multiple battery cells (101) are divided into multiple groups of battery cells arranged along a first direction, and the multiple battery cells (101) in each group of battery cells are arranged along a second direction. The battery module (100) further includes: Pressure bar (7) extends along the second direction and is fixed at both ends to the chassis (1) and / or the stop block (3). The pressure bar (7) is provided on the side of at least one battery cell assembly away from the chassis (1). The pressure bar (7) is used to restrict the battery cell assembly from coming out in the direction away from the chassis (1). The first direction is perpendicular to the second direction.

10. A battery pack, characterized in that, Includes the battery module (100) according to any one of claims 1-9.

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