Battery module and battery pack

Abstract

This utility model provides a battery module and battery pack, relating to the field of battery technology, to improve the technical problem of increased welding and production efficiency caused by the integration of pressure sampling modules onto protection boards in existing technologies, which increases the number of busbars and pressure sampling components. The battery module includes a cell assembly, a support assembly, a busbar, a protection board, and pressure sampling components. The support assembly includes a first support and a second support connected to each other, with multiple positioning protrusions on the first support. The busbar is fixed to the positioning protrusions. The protection board has multiple notches and a pressure sampling module is provided. The pressure sampling component is fixed within the notches, with one end connected to the busbar and the other end electrically connected to the pressure sampling module. This utility model reduces the use of wires, simplifies assembly, and reduces space occupation. Furthermore, it provides welding space for laser spot welding equipment, reducing operational limitations such as avoiding obstructions, thereby improving welding efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and more specifically, to a battery module and battery pack. Background Technology

[0002] A battery module is a standardized energy unit with specific voltage and capacity, formed by combining multiple battery cells in series and parallel connections, integrating components such as structural fixation, electrical connections, thermal management, and protection. To ensure the safety performance of the battery module, the protection board in the battery module must monitor the voltage of individual battery cells in real time to avoid problems caused by cell failure.

[0003] In existing technologies, voltage acquisition is usually carried out by wire sampling or by integrating the sampling module into the protection board. The advantage of integrating the sampling module into the protection board is that it reduces the arrangement of wire harnesses, which facilitates the layout design of battery modules. However, the increased number of busbars and sampling components leads to higher requirements for welding space and operational limitations such as obstructions, which in turn affects welding and production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a battery module and battery pack to improve the technical problem of welding and production efficiency caused by the increased number of busbars and pressure sampling components in the existing method of integrating the pressure sampling module on the protection board.

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

[0006] In a first aspect, this utility model provides a battery module, comprising:

[0007] Battery cell assembly, the battery cell assembly comprising a plurality of battery cells;

[0008] A bracket assembly includes a first bracket and a second bracket connected to each other, wherein the first bracket is provided with a plurality of positioning protrusions; the bracket assembly is used to fix the battery cell assembly.

[0009] A busbar, which is configured to be fixed on the positioning protrusion and used to connect multiple of the battery cells in series or in parallel;

[0010] A protection plate, wherein a pressure sampling module is provided on the protection plate, and multiple notches are provided on the protection plate;

[0011] A pressure-collecting component is configured to be fixed within the notch, with one end of the pressure-collecting component connected to the manifold and the other end electrically connected to the pressure-collecting module.

[0012] In an optional embodiment, the busbar includes a first busbar, a second busbar, and a third busbar;

[0013] The first and second busbars are connected to at least a portion of the battery cells and are used to output the positive and negative currents of the battery cell assembly, respectively; the third busbar is configured to connect the remaining battery cells in series or in parallel.

[0014] In an optional embodiment, the third busbar includes a concave portion and a first connecting portion and a second connecting portion respectively connected to both ends of the concave portion;

[0015] The concave portion is connected to the positioning protrusion; the first connecting portion and the second connecting portion are respectively used to connect the electrode tabs of different battery cells.

[0016] In an optional embodiment, the notch is correspondingly formed above the concave portion, so that the pressing member is connected to the concave portion through the notch.

[0017] In an optional embodiment, the pressure-collecting component has a Z-shaped structure, including a connecting section and a first folded portion and a second folded portion respectively connected to both ends of the connecting section;

[0018] The first folded portion is connected to the concave portion, and the second folded portion is connected to the pressure sampling module.

[0019] In an optional embodiment, the first bracket has a plurality of first fixing holes arrayed on it, and the second bracket has a plurality of second fixing holes arrayed on it, with both ends of the battery cell respectively fixed in the first fixing holes and the second fixing holes;

[0020] The positioning protrusion is provided between adjacent first fixing holes.

[0021] In an optional embodiment, the positioning protrusion includes a top plane for fixing the manifold and a protruding sidewall flush with the inner surface of the first fixing hole.

[0022] In an optional implementation, the battery cell is a battery cell with the same positive and negative polarities.

[0023] In an optional embodiment, the first bracket is provided with a plurality of first support sleeves, and the second bracket is provided with a plurality of second support sleeves accordingly.

[0024] Multiple first support sleeves are connected to multiple second support sleeves to support the first bracket and the second bracket.

[0025] Secondly, the present invention provides a battery pack, including a housing and a battery module as described in any of the foregoing embodiments, wherein the battery module is disposed within the housing.

[0026] The beneficial effects of the battery module and battery pack provided in this embodiment of the present invention include:

[0027] This utility model provides a battery module and a battery pack having the battery module. The battery module includes a cell assembly, a bracket assembly for fixing the cell assembly, a protective plate disposed on the bracket assembly, a busbar for connecting multiple cells, and a voltage acquisition component for voltage acquisition. On one hand, the busbar can be laser-spot welded to the first bracket through a positioning protrusion on the first bracket. On the other hand, after one end of the voltage acquisition component is connected to the voltage acquisition module through a notch on the protective plate, the other end can be laser-spot welded to the busbar using a laser spot welding device. The positioning protrusion and the notch provide welding space for the laser spot welding device, reducing operational restrictions such as avoiding obstructions, thereby improving welding efficiency. 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 This is a schematic diagram of the overall structure of the battery module provided in this embodiment;

[0030] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0031] Figure 3 This is an exploded view of the battery module provided in this embodiment;

[0032] Figure 4 This is a schematic diagram of the structure of the first bracket in the battery module provided in this embodiment;

[0033] Figure 5 for Figure 4 Enlarged view of part B in the middle;

[0034] Figure 6 This is a schematic diagram showing the connection relationship between the protection board, busbar, and pressure sampling component in the battery module provided in this embodiment;

[0035] Figure 7 This is a schematic diagram of the protection board in the battery module provided in this embodiment;

[0036] Figure 8 This is a schematic diagram of the structure of the third busbar in the battery module provided in this embodiment;

[0037] Figure 9 This is a schematic diagram of the pressure-collecting component in the battery module provided in this embodiment.

[0038] Icons: 100 - Battery cell assembly; 110 - Battery cell;

[0039] 200 - Bracket assembly; 210 - First bracket; 211 - First fixing hole; 212 - First support sleeve; 220 - Second bracket; 221 - Second fixing hole; 222 - Second support sleeve; 230 - Positioning protrusion; 231 - Top plane; 232 - Protrusion sidewall;

[0040] 300 - Busbar component; 310 - First busbar segment; 320 - Second busbar segment; 330 - Third busbar segment; 331 - Concave portion; 332 - First connecting portion; 333 - Second connecting portion;

[0041] 400 - Protective plate; 410 - Notch; 420 - Fastener;

[0042] 500 - Pressure component; 510 - Connecting section; 520 - First folding part; 530 - Second folding part. Detailed Implementation

[0043] 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.

[0044] 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.

[0045] 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.

[0046] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during 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, and therefore should not be construed as a limitation of this utility model.

[0047] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0048] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0049] The battery module mentioned in the embodiments of this utility model refers to a single physical module including one or more battery cells 110 to provide higher voltage and capacity. In the embodiments of this utility model, the battery cell 110 may be cylindrical, flat, cuboid, or other shapes, etc., and the embodiments of this application are not limited in this respect.

[0050] The battery module and battery pack mentioned in this utility model can be applied to various electrical devices, such as mobile phones, portable devices, laptops, electric toys, and power tools. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric boat toys, and electric airplane toys; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers. The embodiments of this utility model do not impose special limitations on the aforementioned electrical devices.

[0051] This utility model provides a battery module and a battery pack configured with the battery module, which can be applied to the above-mentioned electrical equipment.

[0052] The present invention provides a battery module comprising a battery cell assembly 100 composed of multiple battery cells 110, a bracket assembly 200 for fixing the battery cell assembly 100, a busbar 300 for electrically connecting the multiple battery cells 110, and a protection board 400 and a voltage acquisition component 500 for acquiring voltage from each battery cell 110.

[0053] The aforementioned support assembly 200 includes a first support 210 and a second support 220 connected to each other, with a receiving space formed between the first support 210 and the second support 220 for accommodating and fixing the battery cell 110.

[0054] Specifically, both the first support 210 and the second support 220 are L-shaped structures. The first support 210 is provided with a plurality of first support sleeves 212, and the second support 220 is provided with a plurality of second support sleeves 222. The plurality of first support sleeves 212 and the plurality of second support sleeves 222 are connected to each other so that the first support 210 and the second support 220 are connected and supported, ultimately forming a U-shaped support structure.

[0055] It should be noted that the first support sleeve 212 and the second support sleeve 222 can be connected by plugging, snapping, bolt / screw, etc., and no limitation is made here.

[0056] Furthermore, the first bracket 210 has a plurality of first fixing holes 211 arrayed on it, and the second bracket 220 has a plurality of second fixing holes 221 arrayed on it. The two ends of the battery cell 110 are respectively fixed in the first fixing holes 211 and the second fixing holes 221.

[0057] It should be noted that the shape of the battery cell 110 can be cylindrical, flat, cuboid, or other shapes. Accordingly, in order to fix the battery cell 110, the shapes of the first fixing hole 211 and the second fixing hole 221 should match the shapes of the two ends of the battery cell 110 to fix the battery cell 110. The battery cells 110 can be arranged in a rectangular array to form a rectangular battery cell assembly 100. Accordingly, in order to fix the battery cell 110, the positions of the first fixing hole 211 and the second fixing hole 221 on the first bracket 210 and the second bracket 220 should correspond to the arrangement position of the battery cells 110 to fix the battery cells 110.

[0058] In the battery cell assembly 100 provided by this utility model, all battery cells 110 are positive and negative polarity cells in the same direction, and the electrode tabs of all battery cells 110 are arranged facing the first bracket 210.

[0059] It should be noted that the electrode tabs of the battery cell 110 can also be set towards the second bracket 220. Correspondingly, the busbar 300, the protection plate 400, and the pressure sampling component 500 are set on the side close to the electrode tabs of the battery cell 110.

[0060] Furthermore, the first bracket 210 is provided with a plurality of positioning protrusions 230, and the busbar 300 is configured to be fixed on the plurality of positioning protrusions 230 and used to connect a plurality of the battery cells 110 in series or in parallel.

[0061] Specifically, there are multiple busbars 300, and the specific number varies depending on the number of battery cells 110 and the electrical connection method. It is understood that the number of positioning protrusions 230 corresponds to the number of busbars 300, in order to fix the busbars 300.

[0062] In the battery module provided by this utility model, the protection board 400 is a BMS protection board integrating a voltage sampling module. It should be noted that the BMS protection board also includes other functional modules such as overcharge protection, over-discharge protection, overcurrent protection, and over-temperature protection.

[0063] Furthermore, the protective plate 400 has multiple notches 410 for setting up the pressure-collecting component 500. The notches 410 provide installation space for the pressure-collecting component 500. On the other hand, the laser spot welding equipment can also use the notches 410 to achieve laser spot welding connection between the pressure-collecting component 500 and the busbar 300, which also provides welding space for the laser spot welding equipment and improves welding efficiency.

[0064] Specifically, the pressure sampling component 500 is configured to be fixed within the notch 410, and one end of the pressure sampling component 500 is connected to the busbar 300, while the other end of the pressure sampling component 500 is electrically connected to the pressure sampling module on the protection plate 400.

[0065] In particular, the pressure sampling component 500 and the manifold component 300 have a one-to-one correspondence. Therefore, the notch 410 can be opened above the manifold component 300 to facilitate the connection between the pressure sampling component 500 and the manifold component 300.

[0066] Furthermore, the protective plate 400 is detachably connected to the bracket assembly 200; specifically, the protective plate 400 is connected to the first bracket 210 via a plurality of fasteners 420.

[0067] The battery module provided by this utility model, after the battery cell 110 and the bracket assembly 200 are assembled, fixes the busbar 300 through the positioning protrusion 230 and connects the busbar 300 to the corresponding battery cell 110's tab. Then, the busbar 300 and the positioning protrusion 230, and the busbar 300 and the battery cell 110 are connected by laser spot welding. Then, the protection plate 400 with the pressure sensor 500 is connected to the first bracket 210 through the fastener 420. At this time, the corresponding pressure sensor 500 and the busbar 300 are connected by laser spot welding to complete the assembly of the battery module.

[0068] This utility model also provides a battery pack, similar to the prior art, which includes a housing, in which the battery module provided by this utility model is disposed and positioned, forming a complete battery pack for use in electrical equipment.

[0069] The following describes in detail the overall structure, working principle, and technical effects of the battery module and battery pack provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0070] Example:

[0071] Please see Figure 1 This embodiment provides a battery module, including a cell assembly 100, a bracket assembly 200, a busbar 300, a protection board 400, and a pressure sampling component 500 disposed on the protection board 400.

[0072] In this embodiment, the battery cell 110 is a positive and negative polarity same-direction battery cell and is a cylindrical battery cell; multiple battery cells 110 are arranged in a rectangular array to form a rectangular battery cell assembly 100.

[0073] Among them, the positive and negative polarity same-direction battery cell refers to the design structure in which the positive and negative electrode tabs of the battery cell 110 are led out from the same end of the battery cell 110; in this embodiment, the positive and negative electrode tabs of the battery cell 110 are both led out from the side close to the first support 210.

[0074] Please see Figure 3 and Figure 4 In this embodiment, the support assembly 200 includes a first support 210 and a second support 220 connected to each other, and both the first support 210 and the second support 220 are L-shaped structures. The first support 210 is provided with a plurality of first support sleeves 212, and the second support 220 is provided with a plurality of second support sleeves 222. The plurality of first support sleeves 212 and the plurality of second support sleeves 222 are connected to each other so that the first support 210 and the second support 220 are connected and the first support 210 and the second support 220 are supported, ultimately forming a U-shaped support structure. The U-shaped support structure has a receiving space in the middle for accommodating the battery cell assembly 100.

[0075] For example, the first support sleeve 212 and the second support sleeve 222 are connected by screws.

[0076] In this embodiment, the first bracket 210 has a plurality of circular first fixing holes 211 arrayed on it, and the second bracket 220 has a plurality of circular second fixing holes 221 arrayed on it. The two circular ends of the battery cell 110 are respectively fixed in the first fixing holes 211 and the second fixing holes 221.

[0077] In this embodiment, the electrode tabs of the battery cell 110 are all arranged facing the first support 210; correspondingly, the busbar 300, the protection plate 400 and the pressure sampling member 500 are arranged on the side close to the electrode tabs of the battery cell 110, that is, on the surface of the first support 210.

[0078] In several other embodiments, the electrode tabs of the battery cell 110 may also be positioned toward the second support 220; correspondingly, the busbar 300, the protection plate 400, and the pressure sampling member 500 are positioned on the side close to the electrode tabs of the battery cell 110, that is, on the surface of the second support 220.

[0079] Please see Figure 2, Figure 4 and Figure 5 In order to fix the busbar 300, in this embodiment, the first bracket 210 is provided with a plurality of positioning protrusions 230, and the plurality of busbars 300 correspond one-to-one with the plurality of positioning protrusions 230 and are connected to the plurality of positioning protrusions 230 by laser spot welding.

[0080] Please see Figure 5 In this embodiment, the positioning protrusion 230 can be disposed between adjacent first fixing holes 211, and includes a top plane 231 for fixing the busbar 300 and a protruding sidewall 232 flush with the inner surface of the first fixing hole 211.

[0081] In particular, in order to make the overall design compact and save space, in this embodiment, the protruding sidewall 232 is set in an arc shape, and the side of it near the first fixing hole 211 is an arc surface, so as to avoid the cylindrical battery cell 110 fixed in the first fixing hole 211.

[0082] It should be noted that the shape of the protruding sidewall 232 can be adapted to the shape of the first fixing hole 211 and the battery cell 110; for example, when the battery cell 110 is a cuboid, the first fixing hole 211 is rectangular and the protruding sidewall 232 is planar.

[0083] In this embodiment, multiple battery cells 110 are connected in series via a busbar 300.

[0084] Please see Figure 6 and Figure 8 In this embodiment, the busbar 300 includes a first busbar 310, a second busbar 320, and a third busbar 330; wherein the first busbar 310 and the second busbar 320 are connected to at least a portion of the battery cells 110 and are used to output the positive current and negative current of the battery cell assembly 100, respectively, and exist as a total positive busbar 300 and a total negative busbar 300; the third busbar 330 is configured to connect the remaining battery cells 110 in series.

[0085] As is understood, in this embodiment, the series connection of multiple battery cells 110 is such that the positive and negative terminals of multiple battery cells 110 are connected through the third busbar 330, the first busbar 310 is finally connected to the positive terminal and outputs positive current, and the second busbar 320 is finally connected to the negative terminal and outputs negative current.

[0086] In this embodiment, the positioning protrusion 230 is mainly used to support and fix the aforementioned third busbar 330; please refer to Figure 8 The third busbar 330 includes a concave portion 331 and a first connecting portion 332 and a second connecting portion 333 respectively connected to both ends of the concave portion 331.

[0087] As can be understood, in this embodiment, the third busbar 330 is used to connect two adjacent battery cells 110 in series, and the first connecting part 332 and the second connecting part 333 are used to connect the positive and negative terminals of the battery cells 110, respectively. In the specific connection process, the lengths of the first connecting part 332 and the second connecting part 333 can be set according to actual needs, or the directions of the first connecting part 332 and the second connecting part 333 can be interchanged.

[0088] Please see Figure 2 and Figure 5 The concave portion 331 is connected to the positioning protrusion 230; specifically, the bottom surface of the concave portion 331 is fitted and connected to the top plane 231, and finally fixed by laser spot welding.

[0089] Please see Figure 7 In this embodiment, the protection plate 400 is detachably connected to the first bracket 210 by multiple fasteners 420. The protection plate 400 integrates a pressure sampling module. By integrating the pressure sampling module onto the protection plate 400 and connecting the pressure sampling module and the busbar 300 through the pressure sampling component 500, the arrangement of wires and wiring space is reduced, thereby making the battery module more concise and efficient as a whole. For the battery pack containing the battery module, the volume of the battery pack can also be better controlled.

[0090] Furthermore, the protection plate 400 has a plurality of notches 410 for setting the pressure sampling component 500. The pressure sampling component 500 is configured to be fixed in the notches 410, and one end of the pressure sampling component 500 is connected to the busbar 300, and the other end of the pressure sampling component 500 is electrically connected to the pressure sampling module on the protection plate 400.

[0091] Since the pressure sampling component 500 and the manifold 300 have a one-to-one correspondence, in this embodiment, the notch 410 is opened above the manifold 300, thereby facilitating the connection between the pressure sampling component 500 and the manifold 300.

[0092] Please see Figure 9 In this embodiment, the pressure sampling component 500 is a foldable Z-shaped pressure sampling nickel sheet. The pressure sampling component 500 includes a connecting section 510 and a first folding part 520 and a second folding part 530 respectively connected to both ends of the connecting section 510; wherein the first folding part 520 is connected to the concave part 331, and the second folding part 530 is connected to the pressure sampling module.

[0093] In this embodiment, the connection between the busbar 300 and the battery cell 110, and between the pressure sampling component 500 and the busbar 300, can be made by laser spot welding.

[0094] It is understandable that in the pressure-collecting component 500, the length of the connecting section 510 is limited by the first folding part 520 and the second folding part 530. In combination with the foldable characteristic of the pressure-collecting nickel sheet, the folding length (or the folding crease position) of the first folding part 520 and the second folding part 530 can be selected by the operator according to the actual work needs, so that the length of the connecting section 510 can be adjusted to match the work needs.

[0095] In this embodiment, the length of the connecting segment 510 is slightly greater than the thickness of the protective plate 400.

[0096] The battery module provided in this embodiment is assembled as follows:

[0097] The battery cell assembly 100 is assembled by placing a rectangular array of battery cells 110 between the first support 210 and the second support 220 to form a rectangular battery cell assembly 100.

[0098] The first support 210 and the second support 220 are connected by the first support sleeve 212 and the second support sleeve 222, and the first support 210 and the second support 220 are fixed.

[0099] The third busbar 330 is placed on the positioning protrusion 230, and multiple battery cells 110 are connected in series through multiple third busbars 330; after the series connection is completed, the first busbar 310 and the second busbar 320 are connected, so that the first busbar 310 serves as the total positive busbar of the battery cell assembly 100 and outputs positive current; and the second busbar 320 serves as the total negative busbar of the battery cell assembly 100 and outputs negative current.

[0100] The third busbar 330 is connected to the battery cell 110, the first busbar 310 is connected to the battery cell 110, the second busbar 320 is connected to the battery cell 110, and the third busbar 330 is connected to the positioning protrusion 230 by laser spot welding.

[0101] The protective plate 400 with the pressure sampling component 500 attached is connected to the first bracket 210 by multiple fasteners 420, and the notch 410 and the pressure sampling component 500 are aligned with the corresponding manifold 300.

[0102] The pressure unit 500 and the busbar 300 are connected by laser spot welding to complete the assembly of the battery module.

[0103] In this embodiment, the battery module can be connected by laser spot welding between the busbar 300 and the cell 110, between the pressure sampling component 500 and the busbar 300, and between the pressure sampling component 500 and the protection board 400. The welding process is fast and accurate, which improves production efficiency and reduces the wiring harness layout of the battery module and battery pack, saving volume space. Specifically, the busbar 300 can be laser spot welded to the first bracket 210 through the positioning protrusion 230 provided on the first bracket 210. After one end of the pressure sampling component 500 is connected to the pressure sampling module through the notch 410 provided on the protection board 400, the other end can be laser spot welded to the busbar 300 through the laser spot welding equipment. The positioning protrusion 230 and the notch 410 provide welding space for the laser spot welding equipment, reducing operational restrictions such as avoiding obstructions, thereby improving welding efficiency.

[0104] The battery pack provided in this embodiment is assembled in a manner similar to that of the prior art, that is, one or more battery modules are integrated into the battery pack housing and electrical connections and mechanical fixation are completed.

[0105] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A battery module, characterized in that, include: A battery cell assembly (100) comprising a plurality of battery cells (110); A bracket assembly (200) includes a first bracket (210) and a second bracket (220) connected to each other. The first bracket (210) is provided with a plurality of positioning protrusions (230). The bracket assembly (200) is used to fix the cell assembly (100). A busbar (300) is configured to be fixed on the positioning protrusion (230) and used to connect multiple of the battery cells (110) in series or in parallel. A protection plate (400) is provided with a pressure sampling module, and the protection plate (400) has multiple notches (410). Pressure sampling component (500) is configured to be fixed within the notch (410), with one end of the pressure sampling component (500) connected to the manifold (300) and the other end electrically connected to the pressure sampling module.

2. The battery module according to claim 1, characterized in that, The busbar (300) includes a first busbar (310), a second busbar (320), and a third busbar (330); The first busbar (310) and the second busbar (320) are connected to at least a portion of the battery cells (110) and are used to output the positive current and negative current of the battery cell assembly (100), respectively; the third busbar (330) is configured to connect the remaining battery cells (110) in series or in parallel.

3. The battery module according to claim 2, characterized in that, The third busbar (330) includes a concave portion (331) and a first connecting portion (332) and a second connecting portion (333) respectively connected to both ends of the concave portion (331); The concave portion (331) is connected to the positioning protrusion (230); the first connecting portion (332) and the second connecting portion (333) are respectively used to connect the electrode tabs of different cells (110).

4. The battery module according to claim 3, characterized in that, The notch (410) is correspondingly opened above the concave portion (331) so that the pressing member (500) is connected to the concave portion (331) through the notch (410).

5. The battery module according to claim 3, characterized in that, The pressure-collecting component (500) has a Z-shaped structure, including a connecting section (510) and a first folded part (520) and a second folded part (530) respectively connected to both ends of the connecting section (510). The first folded portion (520) is connected to the concave portion (331), and the second folded portion (530) is connected to the pressure sampling module.

6. The battery module according to claim 1, characterized in that, The first bracket (210) has a plurality of first fixing holes (211) arranged in an array, and the second bracket (220) has a plurality of second fixing holes (221) arranged in an array. The two ends of the battery cell (110) are respectively fixed in the first fixing holes (211) and the second fixing holes (221); The positioning protrusion (230) is provided between adjacent first fixing holes (211).

7. The battery module according to claim 6, characterized in that, The positioning protrusion (230) includes a top plane (231) for fixing the manifold (300) and a protruding sidewall (232) flush with the inner surface of the first fixing hole (211).

8. The battery module according to claim 1, characterized in that, The battery cell (110) is a battery cell with the same positive and negative polarities.

9. The battery module according to claim 1, characterized in that, The first bracket (210) is provided with a plurality of first support sleeves (212), and the second bracket (220) is provided with a plurality of second support sleeves (222). Multiple first support sleeves (212) are connected to multiple second support sleeves (222) to support the first bracket (210) and the second bracket (220).

10. A battery pack, characterized in that, It includes a housing and a battery module as described in any one of claims 1-9, wherein the battery module is disposed within the housing.

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