Battery cell module and battery pack

Abstract

The utility model discloses a battery cell module and a battery pack. The battery cell module comprises two brackets, a first connecting piece and a battery cell group, the battery cell group is arranged between the two brackets, the two brackets are connected with each other, the first connecting piece is arranged on one side, deviating from the battery cell group, of the brackets, and the first connecting piece is electrically connected with the battery cell group; the support is provided with a mistake-proof structure, a matching hole is formed in the first connecting piece, and the matching hole is connected with the mistake-proof structure in a clamped mode so as to limit the installation position of the first connecting piece on the support. Therefore, the first connecting piece can be installed on the mistake-proofing structure through the matching hole, so that the two ends of the first connecting piece are installed at the preset positions, the situation that the two ends of the first connecting piece are installed reversely is avoided, the assembling efficiency and the assembling accuracy are improved, and the yield is improved.

Description

Technical Field

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

[0002] The global automotive industry is currently facing enormous challenges related to energy and the environment; pure electric vehicles, with their high energy efficiency and zero pollution, are increasingly becoming the future direction of the automotive industry. As a core component of pure electric vehicles, the performance of the power battery directly affects the overall performance of the vehicle. To meet the driving range requirements and achieve predetermined voltage and capacity for electric vehicles, multiple lithium-ion batteries need to be connected in series or parallel to form a power battery module.

[0003] In related technologies, after the battery cell module is fixed, connecting tabs are typically used to connect the battery cells in the module in series or parallel. Because the two ends of the connecting tabs have different structures, incorrect installation requires rework or scrapping, affecting the yield rate. Utility Model Content

[0004] The present invention aims to provide a cell module and battery pack that can solve the problem of incorrect installation of connecting pieces in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model is implemented as follows:

[0006] In a first aspect, this utility model provides a battery cell module, comprising: two brackets, a first connector, and a battery cell assembly; the battery cell assembly is disposed between the two brackets, the two brackets are interconnected, the first connector is disposed on the side of the bracket away from the battery cell assembly, and the first connector is electrically connected to the battery cell assembly; the bracket is provided with an anti-misalignment structure, and the first connector is provided with a mating hole, the mating hole engaging with the anti-misalignment structure to restrict the installation position of the first connector on the bracket.

[0007] Optionally, the cell assembly includes multiple cell arrays arranged along a first direction, which is perpendicular to the connection direction of the two supports; the support is provided with multiple first connectors on the side away from the cell assembly, and the multiple first connectors are arranged along the first direction; each first connector is electrically connected to two adjacent cell arrays; the error prevention structure is an error prevention protrusion provided on the support, the error prevention protrusion is strip-shaped, and the angle between the extension direction of the error prevention protrusion and the first direction is greater than 0° and less than 90°.

[0008] Optionally, the battery cell array includes multiple battery cells arranged along a third direction. The bracket has a mounting groove at a position corresponding to each battery cell. The battery cell is at least partially installed in the mounting groove. The mounting groove has a bottom and an electrical connection hole. The first connector extends at least partially into the electrical connection hole and is electrically connected to the battery cell. The third direction is perpendicular to the first direction and the connection direction of the two brackets, respectively.

[0009] Optionally, it further includes two second connectors; the two outermost cell rows along the first direction among the plurality of cell rows are end cell rows, the second connectors are disposed on the side of the bracket away from the cell group, the second connectors are electrically connected to the end cell rows, the first connectors are electrically connected to the cell rows other than the end cell rows among the plurality of cell rows, and the first connectors and the second connectors are spaced apart.

[0010] Optionally, one end of the battery cell is provided with a positive electrode and the other end is provided with a negative electrode, and the positive electrode ends of multiple cells in each battery cell row face the same direction; the positive electrode ends of cells in two adjacent battery cell rows face opposite directions.

[0011] Optionally, the bracket is provided with a first limiting groove at a position corresponding to the first connector, and the first connector is disposed in the first limiting groove;

[0012] Optionally, the bracket is provided with a second limiting groove at a position corresponding to the second connector, and the second connector is disposed in the second limiting groove.

[0013] Optionally, the bracket is provided with a first latching part and a second latching part; the two brackets include a first bracket and a second bracket; the first latching part of the first bracket is latched with the second latching part of the second bracket.

[0014] Optionally, the second locking portion of the first bracket engages with the first locking portion of the second bracket.

[0015] Optionally, it also includes fasteners; the connection direction of the two brackets is a second direction, and the brackets have oppositely arranged sides along the second direction; the brackets are provided with a plurality of mounting holes on both sides of the second direction, and the fasteners pass through the mounting holes of one of the two brackets and connect to the mounting holes of the other bracket.

[0016] Optionally, it further includes a data acquisition component; the data acquisition component is disposed on one side of the bracket along the third direction; the first connector has a first connecting portion on the side facing the data acquisition component, the first connecting portion being electrically connected to the data acquisition component; and / or, the second connector has a second connecting portion on the side facing the data acquisition component, the second connecting portion being electrically connected to the data acquisition component.

[0017] Optionally, the two supports have the same structure.

[0018] Secondly, this utility model provides a battery pack comprising the cell module described in any of the above embodiments.

[0019] Optionally, multiple battery cell modules are provided, the connection direction of two brackets is a second direction, and the multiple battery cell modules are stacked along the second direction; adjacent battery cell modules are detachably connected.

[0020] In this embodiment of the invention, the battery cell assembly is positioned between two interconnected supports. A first connector is located on the side of the support opposite to the battery cell assembly and is electrically connected to the battery cell assembly. The supports are equipped with an error-prevention structure, and the first connector has a mating hole that engages with the error-prevention structure to restrict the installation position of the first connector on the supports. Thus, the first connector can be installed on the error-prevention structure through the mating hole, ensuring that both ends of the first connector are installed in preset positions. This prevents the ends of the first connector from being installed incorrectly, improving assembly efficiency and accuracy, and consequently increasing the yield rate.

[0021] 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

[0022] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of a battery cell module according to an embodiment of the present utility model;

[0024] Figure 2 This is an exploded view of the battery cell module according to an embodiment of the present utility model;

[0025] Figure 3 This is a side view of the bracket along the second direction according to an embodiment of the present utility model;

[0026] Figure 4 This is another side view of the bracket along the second direction according to an embodiment of the present utility model;

[0027] Figure 5 This is a side view of the bracket along a first direction according to an embodiment of the present utility model;

[0028] Figure 6 This is another side view of the bracket along the first direction according to an embodiment of the present utility model;

[0029] Figure 7 This is a side view of the bracket along a third direction according to an embodiment of the present utility model.

[0030] Figure label:

[0031] 100-cell module;

[0032] 1-Cell assembly; 11-End cell array; 12-Cell; 2-First connector; 21-First body; 22-First connecting part; 3-Bracket; 30-Mounting hole; 31-First bracket; 32-Second bracket; 33-First snap-fit ​​part; 34-Second snap-fit ​​part; 35-Anti-misalignment boss; 36-Mounting groove; 37-First limiting groove; 38-Second limiting groove; 39-Connecting hole; 40-Electrical connection hole; 4-Mating hole; 5-Second connector; 51-Second body; 52-Second connecting part; 6-Fastener; 7-Collection piece; X-First direction; Y-Second direction; Z-Third direction. Detailed Implementation

[0033] The embodiments of this utility model will now be described in detail. Examples of these 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. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0034] The terms "first" and "second" in the specification and claims of this utility model may explicitly or implicitly include one or more of the features. In the description of this utility model, unless otherwise stated, "multiple" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0035] 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.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] The battery cell module and battery pack provided by the present invention will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0038] like Figure 1 and Figure 2 As shown, according to some embodiments of the present invention, a battery cell module 100 includes: two brackets 3, a first connector 2, and a battery cell assembly 1; the battery cell assembly 1 is disposed between the two brackets 3, the two brackets 3 are connected to each other, the first connector 2 is disposed on the side of the bracket 3 away from the battery cell assembly 1, and the first connector 2 is electrically connected to the battery cell assembly 1; the bracket 3 is provided with an anti-misalignment structure, and the first connector 2 is provided with a mating hole 4, which engages with the anti-misalignment structure to limit the installation position of the first connector 2 on the bracket 3.

[0039] In this embodiment of the invention, the battery cell assembly 1 is positioned between two supports 3, which are interconnected. A first connector 2 is located on the side of the support 3 facing away from the battery cell assembly 1 and is electrically connected to the battery cell assembly 1. The support 3 has an anti-misalignment structure, and the first connector 2 has a mating hole 4 that engages with the anti-misalignment structure to restrict the installation position of the first connector 2 on the support 3. Thus, the first connector 2 can be installed on the anti-misalignment structure through the mating hole 4, ensuring that both ends of the first connector 2 are installed in a preset position, preventing the ends from being installed incorrectly, improving assembly efficiency and accuracy, and consequently increasing the yield rate.

[0040] Optionally, the battery cell assembly 1 includes multiple battery cell arrays arranged along a first direction X, which is perpendicular to the connection direction of the two supports 3; the support 3 is provided with multiple first connectors 2 on the side away from the battery cell assembly 1, and the multiple first connectors 2 are arranged along the first direction X; each first connector 2 is electrically connected to two adjacent battery cell arrays; the error prevention structure is an error prevention protrusion 35 provided on the support 3, the error prevention protrusion 35 is strip-shaped, and the angle between the extension direction of the error prevention protrusion 35 and the first direction X is greater than 0° and less than 90°.

[0041] In this embodiment of the invention, a plurality of first connectors 2 are provided on the side of the bracket 3 away from the cell assembly 1, and the plurality of first connectors 2 are arranged along the first direction X. Each first connector 2 is electrically connected to two adjacent cell arrays. The error-proof structure is an error-proof protrusion 35 provided on the bracket 3. The error-proof protrusion 35 is strip-shaped, and the angle between the extension direction of the error-proof protrusion 35 and the first direction X is greater than 0° and less than 90°. In this way, the mating hole 4 in the first connector 2 can engage with the error-proof protrusion 35 along the extension direction of the error-proof protrusion 35, thereby enhancing the connection strength between the first connector 2 and the bracket 3. In addition, the first connector 2 is electrically connected to two adjacent cell arrays, so that the first connector 2 can connect the two adjacent cell arrays in series, thereby increasing the voltage of the cell module 100.

[0042] It should be noted that, as Figure 3 As shown, the strip-shaped anti-misalignment protrusion 35 is thick in the middle and thin at both ends, and has an overall elongated structure; for example, the anti-misalignment protrusion 35 can be configured as a spindle-shaped or shuttle-shaped structure.

[0043] For example, the angle between the extension direction of the anti-misalignment protrusion 35 and the first direction X can be set to any value or a range between any two values, such as 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°.

[0044] It should be noted that, as Figure 1 As shown, the first direction X is the direction in which the battery cell array is set, the connection direction of the two brackets 3 is the second direction Y, and the third direction Z is perpendicular to the first direction X and the second direction Y respectively.

[0045] Optionally, such as Figures 2 to 4 As shown, the battery cell array includes multiple battery cells 12, which are arranged along the third direction Z. The bracket 3 has a mounting groove 36 at a position corresponding to each battery cell 12. The battery cell 12 is at least partially installed in the mounting groove 36. The mounting groove 36 has a bottom and an electrical connection hole 40. The first connector 2 extends at least partially into the electrical connection hole 40 and is electrically connected to the battery cell 12. The third direction Z is perpendicular to the first direction X and the connection direction of the two brackets 3, respectively.

[0046] In this embodiment of the invention, multiple battery cells 12 are arranged along a third direction Z. A bracket 3 has a mounting groove 36 corresponding to each battery cell 12. At least a portion of the battery cell 12 is installed within the mounting groove 36. The mounting groove 36 has a bottom with an electrical connection hole 40. A first connector 2 extends at least partially into the electrical connection hole 40 and is electrically connected to the battery cell 12. This ensures that each battery cell 12 is fixed within the mounting groove 36, improving the connection strength between the battery cell 12 and the bracket 3. Furthermore, the electrical connection hole 40 at the bottom of the mounting groove 36 allows the first connector 2 to be electrically connected to the battery cell 12 through the electrical connection hole 40.

[0047] Optionally, such as Figure 2 As shown, it also includes two second connectors 5; the two outermost cell rows along the first direction X among the multiple cell rows are end cell rows 11, the second connectors 5 are located on the side of the bracket 3 away from the cell group 1, the second connectors 5 are electrically connected to the end cell rows 11, the first connectors 2 are electrically connected to the cell rows other than the end cell rows 11 among the multiple cell rows, and the first connectors 2 and the second connectors 5 are spaced apart.

[0048] In this embodiment of the invention, the second connector 5 is disposed on the side of the bracket 3 facing away from the cell assembly 1. The second connector 5 is electrically connected to the end cell array 11, and the first connector 2 is electrically connected to the cell arrays other than the end cell array 11. The first connector 2 and the second connector 5 are spaced apart. This allows the second connector 5 to form the total positive and total negative terminals of the battery module, thereby supplying power to external electrical equipment.

[0049] In some embodiments, such as Figure 2 As shown, a second connector 5 is provided at the bottom of the first bracket 31. The second connector 5 at the bottom is electrically connected to the negative electrode of the corresponding end cell array 11, thereby forming the total negative electrode of the battery module. A second connector 5 is provided at the top of the second bracket 32. The second connector 5 at the top is electrically connected to the positive electrode of the corresponding end cell array 11, thereby forming the total positive electrode of the battery module.

[0050] Optionally, one end of the cell 12 is provided with a positive electrode and the other end is provided with a negative electrode. The positive electrode ends of multiple cells 12 in each cell row are oriented in the same direction. The positive electrode ends of cells 12 in two adjacent cell rows are oriented in opposite directions.

[0051] In this embodiment of the invention, the positive electrodes of multiple cells 12 in each cell array are arranged with one end facing the same direction, while the positive electrodes of cells 12 in adjacent cell arrays are arranged with one end facing opposite directions. This allows the first connector 2 and the second connector 5 to connect the multiple cell arrays in series to form a complete circuit.

[0052] In some embodiments, such as Figure 2 As shown, the end cell array 11 includes a first end cell array and a second end cell array. The first end cell array is located at the bottom of the first support 31, and the second end cell array is located at the top of the second support 32. Along the positive direction of the first direction X, the cell array adjacent to the first end cell array is the first cell array, the cell array adjacent to the first cell array is the second cell array, and so on, finally forming a first end cell array - first cell array - second cell array - nth cell array - second end cell array.

[0053] Furthermore, the second connector 5 at the bottom is connected in parallel with the negative terminals of the multiple cells 12 of the first end cell array. The positive terminals of the multiple cells 12 of the first end cell array are electrically connected to the negative terminals of the multiple cells 12 of the first cell array through the first connector 2. The positive terminals of the multiple cells 12 of the first cell array are electrically connected to the negative terminals of the multiple cells 12 of the second cell array through the first connector 2, and so on, thereby connecting each cell array in series to form a complete circuit.

[0054] Optionally, such as Figure 2 As shown, the bracket 3 is provided with a first limiting groove 37 at the corresponding position of the first connecting member 2, and the first connecting member 2 is disposed in the first limiting groove 37.

[0055] In this embodiment of the invention, a first limiting groove 37 is provided on the bracket 3, and the first connector 2 is disposed in the first limiting groove 37. This allows the first connector 2 to be limited by the first limiting groove 37, preventing displacement of the first connector 2 and thus avoiding connection failure between the first connector 2 and the battery cell 12.

[0056] In some embodiments, the outer contour of the first limiting groove 37 is the same as the outer contour of the first connector 2. This allows the first connector 2 to engage with the first limiting groove 37.

[0057] Optionally, such as Figure 2 As shown, the bracket 3 is provided with a second limiting groove 38 at the corresponding position of the second connecting member 5, and the second connecting member 5 is provided in the second limiting groove 38.

[0058] In this embodiment of the invention, a second limiting groove 38 is provided on the bracket 3, and the second connecting member 5 is disposed in the second limiting groove 38. This allows the second connecting member 5 to be limited by the second limiting groove 38, preventing displacement of the second connecting member 5 and thus avoiding connection failure between the second connecting member 5 and the battery cell 12.

[0059] In some embodiments, the outer contour of the second limiting groove 38 is the same as the outer contour of the second connector 5. This allows the second connector 5 to engage with the second limiting groove 38.

[0060] It should be noted that the outer contour of the second connector 5 and the outer contour of the first connector 2 may be different or the same.

[0061] Optionally, such as Figure 2 , Figures 5 to 7 As shown, the bracket 3 is provided with a first snap-fit ​​part 33 and a second snap-fit ​​part 34; the two brackets 3 include a first bracket 31 and a second bracket 32; the first snap-fit ​​part 33 of the first bracket 31 is snapped into the second snap-fit ​​part 34 of the second bracket 32.

[0062] In this embodiment of the invention, by providing a first latching portion 33 and a second latching portion 34 on the bracket 3, the first latching portion 33 of the first bracket 31 is latched with the second latching portion 34 of the second bracket 32. This facilitates the connection between the first bracket 31 and the second bracket 32.

[0063] In some embodiments, such as Figure 2 As shown, the second support 32 is formed by first flipping the first support 31 left and right, and then rotating it 180°. That is, the left and right sides of the first support 31 are axially symmetrical with the left and right sides of the second support 32, and the top and bottom sides of the first support 31 are centrally symmetrical with the top and bottom sides of the second support 32.

[0064] In some other embodiments, the first latching portion 33 is disposed on the upper side of the bracket 3, and the second latching portion 34 is disposed on the lower side of the bracket 3; or, the first latching portion 33 is disposed on the lower side of the bracket 3, and the second latching portion 34 is disposed on the upper side of the bracket 3.

[0065] Optionally, such as Figure 2 , Figures 5 to 7 As shown, the second snap-fit ​​portion 34 of the first bracket 31 snaps into the first snap-fit ​​portion 33 of the second bracket 32.

[0066] In this embodiment of the invention, the second snap-fit ​​portion 34 of the first bracket 31 is snapped into the first snap-fit ​​portion 33 of the second bracket 32. This allows the first bracket 31 and the second bracket 32 ​​to be connected through different snap-fit ​​portions, thereby increasing the connection strength between the two brackets 3.

[0067] In some embodiments, the first latching part 33 can be configured as a latch, and the second latching part 34 can be configured as a hook. The bracket 3 has a first side and a second side disposed opposite to each other along the first direction X. The first side is provided with a hook, and the second side is provided with a latch; or, the first side is provided with a latch, and the second side is provided with a hook, and the latch and the hook are engaged.

[0068] Optionally, such as Figures 2 to 4As shown, it also includes a fastener 6; the connection direction of the two brackets 3 is the second direction Y, and the brackets 3 have opposite sides along the second direction Y; the brackets 3 are provided with a plurality of mounting holes 30 on both sides of the second direction Y, and the fastener 6 passes through the mounting hole 30 of one of the two brackets 3 and connects to the mounting hole 30 of the other bracket 3.

[0069] In this embodiment of the invention, by providing a plurality of mounting holes 30 on both sides of the bracket 3 in the second direction Y, the fastener 6 passes through the mounting hole 30 of one of the two brackets 3 and connects to the mounting hole 30 of the other bracket 3. In this way, the connection strength between the two mounting holes 30 can be further increased, thereby improving the structural strength of the battery cell module 100.

[0070] In some embodiments, two mounting holes 30 are provided on the left and right sides of the first bracket 31 and the second bracket 32, and each mounting hole 30 is provided with a threaded hole, and the fastener 6 is threadedly connected to the threaded hole.

[0071] Optionally, such as Figure 2 As shown, it also includes a data acquisition component 7; the data acquisition component 7 is located on one side of the bracket 3 along the third direction Z; the first connecting component 2 is provided with a first connecting part 22 on the side facing the data acquisition component 7, and the first connecting part 22 is electrically connected to the data acquisition component 7;

[0072] In this embodiment of the invention, the data acquisition unit 7 is disposed on the Z-direction side of the bracket 3; the first connecting member 2 is provided with a first connecting part 22 on the side facing the data acquisition unit 7, and the first connecting part 22 is electrically connected to the data acquisition unit 7. In this way, the data acquisition unit 7 can sample the voltage between all cell rows except the end cell row 11, thereby identifying abnormal states between cell rows and improving the safety of the cell 12.

[0073] In some embodiments, such as Figure 2 As shown, the first connector 2 includes a first body 21 and a first connecting part 22 that are connected to each other. The first body 21 is electrically connected to the other battery cells except for the end battery cell array 11, and the first connecting part 22 is electrically connected to the acquisition unit 7.

[0074] Optionally, such as Figure 2 As shown, the second connector 5 has a second connecting part 52 on the side facing the acquisition component 7, and the second connecting part 52 is electrically connected to the acquisition component 7.

[0075] In this embodiment of the invention, the data acquisition element 7 is disposed on the Z-direction side of the bracket 3; the second connecting element 5 is provided with a second connecting portion 52 on the side facing the data acquisition element 7, and the second connecting portion 52 is electrically connected to the data acquisition element 7. In this way, the data acquisition element 7 can sample the voltage between all cell rows except the end cell row 11 and the end cell row 11, thereby identifying abnormal states between cell rows and improving the safety of the cell 12.

[0076] In some embodiments, such as Figure 2 As shown, the second connector 5 includes a second body 51 and a second connector 52 that are connected to each other. The second body 51 is electrically connected to the end cell array 11, and the second connector 52 is electrically connected to the acquisition unit 7.

[0077] Optionally, such as Figure 2 As shown, the two supports 3 have the same structure.

[0078] In this embodiment of the invention, the two supports 3 are designed with identical structures. This reduces the need for a single support 3 module during production, thus saving costs.

[0079] Specifically, the fact that the two supports 3 have the same structure means that the two supports 3 have the same shape.

[0080] Secondly, this utility model embodiment proposes a battery pack, including the cell module 100 of any of the above embodiments.

[0081] In this embodiment of the invention, the battery cell assembly 1 is positioned between two supports 3, which are interconnected. A first connector 2 is located on the side of the support 3 facing away from the battery cell assembly 1 and is electrically connected to the battery cell assembly 1. The support 3 has an anti-misalignment structure, and the first connector 2 has a mating hole 4 that engages with the anti-misalignment structure to restrict the installation position of the first connector 2 on the support 3. Thus, the first connector 2 can be installed on the anti-misalignment structure through the mating hole 4, ensuring that both ends of the first connector 2 are installed in a preset position, preventing the ends from being installed incorrectly, improving assembly efficiency and accuracy, and consequently increasing the yield rate.

[0082] Optionally, multiple battery cell modules 100 are provided, the connection direction of the two brackets 3 is the second direction Y, and the multiple battery cell modules 100 are stacked along the second direction Y; adjacent battery cell modules 100 can be detachably connected.

[0083] In this embodiment of the invention, multiple battery cell modules 100 are stacked along the second direction Y; adjacent battery cell modules 100 are detachably connected. This facilitates the assembly and expansion of multiple battery cell modules 100, thereby adapting to electrical equipment requiring different voltages.

[0084] In some embodiments, such as Figure 3 and Figure 4 As shown, several connection holes 39 are provided on the left and right sides of the bracket 3. The battery pack also includes screws and nuts. A countersunk platform is provided in the connection hole 39, and the nut is located in the countersunk platform. The screw passes through the connection hole 39 and connects with the nut. In this way, multiple cell modules 100 can be connected into a battery pack to adapt to different usage scenarios.

[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "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.

[0086] 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 cell module (100), characterized in that, include: Two brackets (3), a first connector (2), and a battery cell assembly (1); The battery cell assembly (1) is located between two brackets (3), which are connected to each other. The first connector (2) is located on the side of the bracket (3) away from the battery cell assembly (1) and is electrically connected to the battery cell assembly (1). The bracket (3) is provided with an anti-error structure, and the first connector (2) is provided with a mating hole (4). The mating hole (4) is engaged with the anti-error structure to limit the installation position of the first connector (2) on the bracket (3).

2. The battery cell module (100) according to claim 1, characterized in that, The battery cell assembly (1) includes multiple battery cell arrays arranged along a first direction (X), which is perpendicular to the connection direction of the two supports (3); the support (3) has multiple first connectors (2) on the side away from the battery cell assembly (1), and the multiple first connectors (2) are arranged along the first direction (X); each first connector (2) is electrically connected to two adjacent battery cell arrays; The error prevention structure is an error prevention boss (35) provided on the bracket (3). The error prevention boss (35) is strip-shaped, and the angle between the extension direction of the error prevention boss (35) and the first direction (X) is greater than 0° and less than 90°.

3. The battery cell module (100) according to claim 2, characterized in that, The battery cell array includes multiple battery cells (12), which are arranged along a third direction (Z). The bracket (3) has a mounting groove (36) at a position corresponding to each battery cell (12). The battery cell (12) is at least partially installed in the mounting groove (36). The mounting groove (36) has a bottom and an electrical connection hole (40) is provided at the bottom. The first connector (2) extends at least partially into the electrical connection hole (40) and is electrically connected to the battery cell (12). The third direction (Z) is perpendicular to the first direction (X) and the connection direction of the two brackets (3).

4. The battery cell module (100) according to claim 3, characterized in that, It also includes two second connectors (5); the two outermost cell rows along the first direction (X) of the plurality of cell rows are end cell rows (11), the second connectors (5) are disposed on the side of the bracket (3) away from the cell group (1), the second connectors (5) are electrically connected to the end cell rows (11), the first connectors (2) are electrically connected to the cell rows other than the end cell rows (11) of the plurality of cell rows, and the first connectors (2) and the second connectors (5) are spaced apart.

5. The battery cell module (100) according to claim 3, characterized in that, One end of the cell (12) is provided with a positive electrode and the other end is provided with a negative electrode. The positive electrode ends of the multiple cells (12) in each cell row are oriented in the same direction. The positive electrode ends of the cells (12) in two adjacent cell rows are oriented in opposite directions.

6. The battery cell module (100) according to claim 4, characterized in that, The bracket (3) has a first limiting groove (37) at a position corresponding to the first connector (2), and the first connector (2) is disposed in the first limiting groove (37); And / or; the bracket (3) is provided with a second limiting groove (38) at a position corresponding to the second connector (5), and the second connector (5) is provided in the second limiting groove (38).

7. The battery cell module (100) according to claim 4, characterized in that, The bracket (3) is provided with a first snap-fit ​​part (33) and a second snap-fit ​​part (34); the two brackets (3) include a first bracket (31) and a second bracket (32); the first snap-fit ​​part (33) of the first bracket (31) snaps with the second snap-fit ​​part (34) of the second bracket (32), and / or, the second snap-fit ​​part (34) of the first bracket (31) snaps with the first snap-fit ​​part (33) of the second bracket (32).

8. The battery cell module (100) according to claim 7, characterized in that, It also includes fasteners (6); The connection direction of the two brackets (3) is the second direction (Y), and the brackets (3) have opposite sides along the second direction (Y); the brackets (3) are provided with a plurality of mounting holes (30) on both sides of the second direction (Y), and the fastener (6) passes through the mounting hole (30) of one of the two brackets (3) and connects to the mounting hole (30) of the other bracket (3).

9. The battery cell module (100) according to claim 8, characterized in that, It also includes the collection component (7); The acquisition element (7) is located on one side of the bracket (3) along the third direction (Z); the first connector (2) is provided with a first connecting part (22) on the side facing the acquisition element (7), and the first connecting part (22) is electrically connected to the acquisition element (7); and / or, the second connector (5) is provided with a second connecting part (52) on the side facing the acquisition element (7), and the second connecting part (52) is electrically connected to the acquisition element (7).

10. The cell module (100) according to any one of claims 1-9, characterized in that, The two supports (3) have the same structure.

11. A battery pack, characterized in that, Includes the cell module (100) as described in any one of claims 1-10.

12. The battery pack according to claim 11, characterized in that, The battery cell module (100) is configured as multiple, and the connection direction of the two brackets (3) is the second direction (Y). The multiple battery cell modules (100) are stacked along the second direction (Y). The two adjacent battery cell modules (100) are detachably connected.

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