Battery connection module

Abstract

To provide a battery connection module with which a single connection busbar can connect a greater number of battery cells, and can connect a plurality of battery cells that are irregularly arranged.SOLUTION: The battery connection module comprises a plurality of connection busbars that are assembled on a tray, each connection busbar including a plurality of constituent elements, some of the plurality of constituent elements respectively including a main body part, a positive electrode connection part that extends from a first end of the main body part, and a negative electrode connection part that extends from a second end of the main body part. The main body parts of the plurality of constituent elements of each connection busbar are respectively integrally connected by the connection parts. In each connection busbar, some of the plurality of constituent elements respectively connect the positive and negative electrodes of two battery cells in every other row, some of the plurality of constituent elements respectively connect the positive and negative electrodes of two battery cells in the same row, and some of the plurality of constituent elements respectively connect only the positive electrode or only the negative electrode of one battery cell.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] Cross - reference to Related Applications This application claims priority to Chinese Patent Application No. 202210176845.0, filed on February 25, 2025, with the title "battery connection module", the entire content of which is incorporated herein by reference.

[0002] Field of the Invention The present disclosure relates to the field of battery technology, and more particularly, to battery connection modules.

Background Art

[0003] Taiwan Patent No. 308406(B) (corresponding US Patent No. 7,811,701(B2)) discloses a battery pack. The conductive pieces of the battery pack are each constructed such that each of a plurality of pairs of tab connection points is symmetric and extends from the left and right sides of a body. Each conductive piece is used to connect adjacent two rows of batteries, and the tab connection points of the conductive pieces are constructed to be symmetrically and regularly arranged, and the batteries are also symmetrically and regularly arranged.

[0004] However, when it is necessary to use one conductive piece to connect a number of batteries more than the number of the adjacent two rows of batteries disclosed above, the structure of the conductive piece disclosed in the above patent document cannot meet this requirement. For example, if one row has three batteries and two rows have six batteries, based on the structure of the conductive piece disclosed in the above patent document, the tab connection points of the conductive piece are constructed to be symmetrically and regularly arranged, and one conductive piece can only connect six batteries in two adjacent rows. Under the same battery arrangement as above, when it is necessary to use one conductive piece to connect, for example, ten batteries simultaneously, the ten batteries to be connected at this time are not positioned at regular and symmetric positions, and the structure disclosed in the above patent document cannot meet this requirement.

Summary of the Invention

[0005] One of the main objectives of the present disclosure is to provide a battery connection module in which a single connection bus bar can connect a larger number of battery cells and can connect a plurality of irregularly arranged battery cells, in order to overcome at least one drawback of the above prior art.

[0006] To achieve the above objective, the present disclosure uses the following technical solutions. According to one aspect of the present disclosure, there is provided a battery connection module, which is used to connect a battery cell array. The battery cell array includes a plurality of columns, each column includes battery cells and has the same number of battery cells. The corresponding battery cell of one of the adjacent columns is positioned between two corresponding battery cells of the other of the adjacent columns. The plurality of columns repeat the arrangement of the adjacent columns in the row direction to form a plurality of rows of battery cells. The corresponding battery cell of one of the adjacent rows is positioned between two corresponding battery cells of the other of the adjacent rows. Each battery cell has a positive electrode and a negative electrode positioned on the same end face. The battery connection module includes a tray and a plurality of connection bus bars. The plurality of connection bus bars are assembled on the tray. Each connection bus bar has a plurality of components. Each of a part of the plurality of components has a main body part, a positive electrode connection part extending from the first end of the main body part, and a negative electrode connection part extending from the second end of the main body part. Each of a part of the plurality of components has a main body part and only has a positive electrode connection part extending from the first end of the main body part. Each of a part of the plurality of components has a main body part and only has a negative electrode connection part extending from the second end of the main body part. The main body parts of the plurality of components of each connection bus bar are integrally connected by connection parts respectively. In each connection bus bar, each of a part of the plurality of components connects the positive electrodes and negative electrodes of two battery cells every other column. Each of a part of the plurality of components connects the positive electrodes and negative electrodes of two battery cells in the same row. Each of a part of the plurality of components connects only the positive electrode of one battery cell. Each of a part of the plurality of components connects only the negative electrode of one battery cell.

[0007] According to one of the embodiments of the present disclosure, the main body portion has a planar structure, extends linearly, the thickness of the positive electrode connection portion is less than the thickness of the main body portion, and the lower surface of the positive electrode connection portion is on the same plane as the lower surface of the main body portion.

[0008] According to one of the embodiments of the present disclosure, the negative electrode connection portion of each component of the connection bus bar has two branched leg portions.

[0009] According to one of the embodiments of the present disclosure, a fusible portion that acts as overcurrent protection is provided in the main body portion of each component of the connection bus bar, and the cross-sectional area of the fusible portion in the thickness direction is the smallest with respect to the cross-sectional area of the other portions of the main body portion.

[0010] According to one of the embodiments of the present disclosure, a material removal portion is provided in the main body portion, and the fusible portion is constructed by the material removal portion.

[0011] According to one of the embodiments of the present disclosure, the fusible portion is provided in the main body portion close to the negative electrode connection portion.

[0012] According to one of the embodiments of the present disclosure, the material removal portion is an opening constructed on the main body portion, and two edge strips on both sides of the opening together constitute the fusible portion, and the two edge strips are constructed in a V shape protruding toward each other and toward the inside of the opening.

[0013] According to one of the embodiments of the present disclosure, an assembly post is integrally provided on the tray, and an assembly hole corresponding to the assembly post is provided on the connection bus bar.

[0014] According to one of the embodiments of the present disclosure, each column of the battery cell array has Y battery cells, which are the same in the number of battery cells, and each connection bus bar includes X positive electrode connection portions and X negative electrode connection portions, and X is greater than Y.

[0015] According to one of the embodiments of the present disclosure, the plurality of connection buses are divided into a plurality of groups that repeatedly arrange one of the plurality of groups, each group includes at least two connection buses, and the connection buses in the same group are not completely the same in structural features.

[0016] According to one of the embodiments of the present disclosure, each column of the battery cell array includes three battery cells, so that six rows of battery cells are configured within the battery cell array, and each connection bus has six components, five positive electrode connection portions, and five negative electrode connection portions.

[0017] According to one of the embodiments of the present disclosure, the plurality of connection buses are arranged in a manner that repeats groups in which six connection buses having different structural features are continuously arranged so that a plurality of groups are formed to connect the battery cells.

[0018] According to one of the embodiments of the present disclosure, each connection bus straddles four columns of battery cells.

[0019] According to one of the embodiments of the present disclosure, the fusible portion is provided between the main body portion and the positive electrode connection portion.

[0020] According to one of the embodiments of the present disclosure, at least one connection strip exists between the main body portion and the positive electrode connection portion. The connection strip constitutes the fusible portion, and the connection strip is constructed as a protruding arch.

[0021] According to one of the embodiments of the present disclosure, two adjacent trays are connected by a connection structure, and the connection structure includes a latching piece provided on one of the two adjacent trays and a latching block provided on the other of the two adjacent trays.

[0022] According to one of the embodiments of the present disclosure, the latching piece is constructed as a pair of latching legs, and the tips of the two latching legs have latching hooks facing each other, and the latching block is configured as a T-shaped protruding block.

[0023] According to one of the embodiments of the present disclosure, each component having a negative electrode connection portion among the plurality of components of the connection bus bar produces a negative electrode connection portion 64 configured as an arc-shaped sheet body that spreads toward two side surfaces.

[0024] According to one of the embodiments of the present disclosure, there is a stepped portion that is located between the main body portion and the negative electrode connection portion and bends downward.

[0025] As can be seen from the above technical solutions, the advantages and beneficial effects of the battery connection module proposed by the present disclosure are that the battery connection module proposed by the present disclosure can be adapted to a battery cell arrangement in which the battery cells are irregularly arranged, and each battery cell in the battery cell arrangement has a positive electrode and a negative electrode on the same end face, and the battery cells in every two adjacent rows are arranged alternately in the corresponding rows, so that the battery cells form a regular symmetric arrangement. In such a type of battery cell arrangement, the battery connection module promoted by the present disclosure can use one connection bus bar to realize connection with more battery cells, can connect battery cells that are not positioned at regular symmetric positions, and at the same time, can connect battery cells by using a plurality of connection bus bars each having a different irregular symmetric configuration.

Brief Description of the Drawings

[0026] Various objects, features, and advantages of the present disclosure will become apparent from considering the detailed description of the preferred embodiments of the present disclosure in combination with the drawings. The drawings are only illustrative illustrations of the present disclosure and are not necessarily drawn to scale. In the drawings, the same reference numerals always indicate the same or similar elements.

[0027]

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Mode for Carrying Out the Invention

[0028] Typical embodiments embodying the features and advantages of the present disclosure are described in detail in the following description. It should be understood that the present disclosure can have various modifications within different embodiments without departing from the scope of the present disclosure, and that the description and drawings are for illustrative purposes essentially and are not intended to limit the present disclosure.

[0029] In the following description of different exemplary embodiments of the present disclosure, reference is made to the accompanying drawings which show, by way of example, different exemplary structures, systems, and processes of aspects that form part of the present disclosure and by which the present disclosure can be implemented. It should be understood that other specific solutions of components, structures, exemplary devices, systems, and processes can be used and structural and functional modifications can be made without departing from the scope of the present disclosure. Further, terms such as "above", "between", "within", etc. may be used herein to describe different exemplary features and elements of the present disclosure, but these terms are used herein for convenience only, for example, in accordance with the directions of the examples illustrated in the accompanying drawings. Nothing in this specification should be understood as requiring that structures within the scope of the present disclosure need to be positioned in a particular three-dimensional direction.

[0030] Referring to FIG. 1, FIG. 1 typically illustrates an exploded schematic view of a battery pack, the battery pack including four battery sets, each battery set including a battery connection module 20 and a battery cell array (AR1 - AR4) proposed by the present disclosure. Those skilled in the art can make various modifications, additions, substitutions, deletions, or other variations to the following specific embodiments for applying the related designs of the present disclosure to other types of energy storage devices, but it is readily understood that these modifications, additions, substitutions, deletions, or other variations are still within the scope of the principles of the battery connection module 20 proposed by the present disclosure.

[0031] As shown in FIGS. 2 to 4, in one embodiment of the present disclosure, two ends of each battery connection module 20 respectively have a first end partial busbar 80 and a second end partial busbar 82. Each component of the first end partial busbar 80 is respectively connected to the negative electrode of the battery cell 24 at one end of the two ends of the corresponding battery cell array of the battery connection module 20, and each component of the second end partial busbar 82 is respectively connected to the positive electrode of the battery cell 24 at the other end of the two ends of the battery cell array. Based on this, the four battery connection modules 20 can be alternately arranged and can be inverted with respect to each other. Specifically, FIG. 2 illustrates a partial structure at the right end of FIG. 1. In the order from the lower left to the upper right of FIG. 2, the first end partial busbar 80 of the first battery connection module 20 is connected to the negative electrode of the battery cell 24 at the right end of the battery cell array AR1. The second battery connection module 20 is inverted left and right with respect to the first battery connection module 20. That is, the second end partial busbar 82 of the second battery connection module 20 is connected to the positive electrode of the battery cell 24 at the right end of the battery cell array AR2. The third battery connection module 20 is inverted with respect to the second battery connection module 20 in the same manner as above, and the fourth battery connection module 20 is inverted with respect to the third battery connection module 20 in the same manner as above. Correspondingly, FIG. 3 illustrates a partial structure at the left end of FIG. 1. In the order from the lower right to the upper left of FIG. 3, the second end partial busbar 82 of the first battery connection module 20 is connected to the positive electrode of the battery cell 24 at the left end of the battery cell array AR1. The first end partial busbar 80 of the second battery connection module 20 is connected to the negative electrode of the battery cell 24 at the left end of the battery cell array AR2. The second end partial busbar 82 of the third battery connection module 20 is connected to the positive electrode of the battery cell 24 at the left end of the battery cell array AR3. The first end partial busbar 80 of the fourth battery connection module 20 is connected to the negative electrode of the battery cell 24 at the left end of the battery cell array AR4.

[0032] As shown in FIGS. 2 and 3, in one embodiment of the present disclosure, the battery pack further includes an input bus 78, an output bus 114, a first bridge bus 44, a second bridge bus 48, and a third bridge bus 52. Specifically, the input bus 78 is connected to the first end portion bus 80 of the battery connection module 20 corresponding to the battery cell array AR1. The first power connector 26 (i.e., the negative electrode end) is provided on the input bus 78. The output bus 114 is connected to the second end portion bus 82 of the battery connection module 20 corresponding to the battery cell array AR4. The second power connector 28 (i.e., the positive electrode end) is provided on the output bus 114. The first bridge bus 44 is connected to the second end portion bus 82 of the battery connection module 20 corresponding to the battery cell array AR2 and the first end portion bus 80 of the battery connection module 20 corresponding to the battery cell array AR3. The second bridge bus 48 is connected to the second end portion bus 82 of the battery connection module 20 corresponding to the battery cell array AR1 and the first end portion bus 80 of the battery connection module 20 corresponding to the battery cell array AR2. The third bridge bus 52 is connected to the second end portion bus 82 of the battery connection module 20 corresponding to the battery cell array AR3 and the first end portion bus 80 of the battery connection module 20 corresponding to the battery cell array AR4. As shown in FIGS. 6 to 8, in this embodiment, the battery connection module 20 proposed by the present disclosure is used to connect battery cell arrays. The battery cells 24 are arranged side by side in columns (CL1 to CLX) and rows (R1 to RX). The battery cells 24 for every two adjacent columns are offset from each other and arranged alternately. The battery cells 24 for every two adjacent rows are offset from each other and arranged alternately. In other words, the corresponding battery cell 24 of one of two adjacent columns is positioned between the corresponding two battery cells 24 of the other of the two adjacent columns. The corresponding battery cell 24 of one of two adjacent rows is positioned between the two battery cells 24 of the other of the two adjacent rows.Each battery cell 24 has a positive electrode and a negative electrode on the same end face, for example, a positive electrode terminal 30 and a negative electrode terminal 32 as shown in FIG. 6. The battery connection module 20 includes a tray 22 and a plurality of connection buses A.

[0033] Hereinafter, by combining these figures, each main component of the battery connection module 20 proposed by the present disclosure will be described in detail in terms of structure, connection mode, and functional relationship.

[0034] As shown in FIGS. 5 to 7, in one embodiment of the present disclosure, a plurality of connection buses A are assembled on the tray 22. Each connection bus A has a plurality of components (A1 to A6). Each of some of the plurality of components (A2, A4 to A6) has a main body portion 60, a positive electrode connection portion 62 extending from the first end of the main body portion 60, and a negative electrode connection portion 64 extending from the second end of the main body portion 60. The positive electrode connection portion 62 is connected to the positive electrode of one corresponding battery cell 24, and the negative electrode connection portion 64 is connected to the negative electrode of one corresponding battery cell 24. Each of some of the plurality of components (A3) has a main body portion 60 and only has a positive electrode connection portion 62 extending from the first end of the main body portion 60. Each of some of the plurality of components (A1) has a main body portion 60 and only has a negative electrode connection portion 64 extending from the second end of the main body portion 60. The main body portions 60 of the plurality of components (A1 to A6) of the connection bus A are correspondingly connected to each other through their respective connection portions 58. Based on this, in each connection bus A, at least one component connects the positive and negative electrodes of two battery cells 24 with one cell interval, at least one component connects the positive and negative electrodes of two battery cells 24 in the same row, at least one component connects only the positive electrode of one battery cell 24, and at least one component connects only the negative electrode of one battery cell 24.

[0035] With the above design, the battery connection module 20 proposed by the present disclosure can be adapted to a battery cell array in which the battery cells 24 are irregularly arranged, each battery cell 24 in the battery cell array has a positive electrode and a negative electrode on the same end face, and the battery cells 24 in every two adjacent columns are arranged alternately in corresponding rows so as to form a regular symmetric arrangement. In such a type of battery cell array, the battery connection module 20 promoted by the present disclosure can use one connection bus bar A to realize connection with more battery cells 24, can connect the battery cells 24 not positioned at regular symmetric positions, and at the same time, can connect the battery cells 24 by using a plurality of connection bus bars A each having a different irregular symmetric configuration.

[0036] As shown in FIG. 7, in one embodiment of the present disclosure, the main body portion 60 has a planar structure and extends linearly. Based on this, the thickness of the positive electrode connection portion 62 is less than the thickness of the main body portion 60, and the lower surface of the positive electrode connection portion 62 is on the same plane as the lower surface of the main body portion 60.

[0037] As shown in FIG. 7, in one embodiment of the present disclosure, a slit is provided in the middle of each negative electrode connection portion 64 of some (A1 to A2, A4 to A6) of the plurality of components of the connection bus bar to form two branch leg portions 65, and the two branch leg portions 65 can also have an expanded structure, or the negative electrode connection portion 64 can also form three or more branch leg portions 65.

[0038] As shown in FIG. 7, in one embodiment of the present disclosure, the negative electrode connection portion 64 has a first portion 66, a second portion 68, and a third portion 70. Specifically, the first portion 66 extends from the main body portion 60 and is on the same plane as the main body portion 60. The second portion 68 extends downward and obliquely from the first portion 66 at an angle. The third portion 70 extends from the second portion 68 at an angle and is parallel to the first portion 66. The third portion 70 is used to connect the negative electrode of the corresponding battery cell 24.

[0039] As shown in FIG. 7, in one embodiment of the present disclosure, a fusible portion 63 that acts as overcurrent protection is provided in the main body portion 60 of each component (A1 to A6) of the connection bus bar A. The cross-sectional area of the fusible portion 63 in the thickness direction is the smallest with respect to the cross-sectional area of other portions of the main body portion 60. Therefore, the fusible portion 63 has a high resistance, can generate a large amount of heat, and can melt and be cut off under overcurrent.

[0040] As shown in FIG. 7, based on the design in which the fusible portion 63 is provided in the main body portion 60, in one embodiment of the present disclosure, a material removal portion 61 close to the positive electrode connection portion 62 is provided in the main body portion 60, and the fusible portion 63 is constructed by the material removal portion 61. In some embodiments, the material removal portion 61 can be a groove, a through hole, etc. In addition, at least two different types of thinning structures can also be provided in the material removal portion 61 to construct the fusible portion 63 on the main body portion 60. For example, through holes and grooves, etc., can be provided simultaneously. In this embodiment, the fusible portion 63 provided at the position of the main body portion 60 close to the negative electrode connection portion 64 is taken as an example for explanation. However, in some embodiments, the fusible portion 63 can also be provided at the position of the main body portion 60 close to the positive electrode connection portion 62, or can be provided at other positions of the main body portion 60. The present disclosure is not limited thereto.

[0041] As shown in FIG. 7, based on the design in which the fusible portion 63 is constructed by the material removal portion 61 of the main body portion 60, in one embodiment of the present disclosure, the material removal portion 61 can be an opening constructed on the main body portion 60. Two edge strips on both sides of the opening together constitute the fusible portion 63, and the two edge strips are constructed in a V shape protruding toward each other and toward the inside of the opening.

[0042] As shown in FIG. 6, in one embodiment of the present disclosure, an assembly post 23 is integrally provided on the tray 22, and an assembly hole 76 corresponding to the assembly post 23 is provided on the connection bus bar A. Based on this, the connection bus bar A and the tray 22 are assembled by the cooperating assembly post 23 and assembly hole 76.

[0043] Based on the design in which the assembly post 23 is integrally provided on the tray 22, in some embodiments, a part of the end of the assembly post 23 passing through the assembly hole 76 is connected to the connection bus bar A by heat melting or riveting.

[0044] In the row direction of one battery cell array, the length of one battery cell array can be longer, so a plurality of trays 22 can be provided, that is, the tray 22 can be one or more. It should be noted that when a plurality of trays 22 are provided, adjacent trays 22 can be connected together (for example, but not limited to, using an integral structure).

[0045] As shown in FIGS. 5 to 7, in one embodiment of the present disclosure, each column of the battery cell array has Y battery cells 24, and the number of battery cells is the same. Each connection bus bar A includes X positive electrode connection portions 62 and X negative electrode connection portions 64, and X is greater than Y. In this embodiment, Y = 3 and X = 5. That is, each column of the battery cell array of this embodiment includes three battery cells. Therefore, six rows (R1 to R6) of battery cells are configured in the battery cell array, and a plurality of connection bus bars are arranged in a repeating manner such that a group of six connection bus bars (A to F) having different structural characteristics are continuously arranged. Therefore, a plurality of groups are formed to connect the battery cells. Each connection bus bar has six components, five positive electrode connection portions, and five negative electrode connection portions. Each connection bus bar straddles four columns of battery cells and connects ten battery cells 24 among the battery cells (the five positive electrode connection portions respectively connect the positive electrodes of five battery cells, and the five negative electrode connection portions respectively connect the negative electrodes of an additional five battery cells).

[0046] As shown in FIGS. 5 to 7, in one embodiment of the present disclosure, the plurality of connection buses A are divided into a plurality of groups that repeatedly arrange one of the plurality of groups, and each group includes at least two connection buses A. The connection buses A in the same group are not completely the same in structural features. Here, the above structural features include at least one of the main body portion 60, the positive electrode connection portion 62, the negative electrode connection portion 64, and the position, extending length, width, and relative angle of the connection portion 58 of any component (A1 to A6) of the connection bus A.

[0047] Referring to FIGS. 10 to 15, FIG. 10 typically illustrates a perspective view of a partial structure of a battery connection module in another exemplary embodiment according to the principles of the present disclosure, in a state where the tray 22 of the battery connection module and the partial structure of the connection bus A are shown. FIG. 11 typically illustrates an exploded schematic view of FIG. 10. FIG. 12 illustrates a partial enlarged schematic view of FIG. 11 indicated by the dotted line frame P. FIG. 13 illustrates a partial enlarged schematic view of FIG. 11 indicated by the dotted line frame Q. FIG. 14 typically illustrates a plan schematic view of the connection bus A of the battery connection module of FIGS. 10 and 11. FIG. 15 typically illustrates a perspective view of one of the connection buses A of the battery connection module of FIGS. 10 and 11.

[0048] As shown in FIGS. 14 and 15, in one embodiment of the present disclosure, the fusible portion 63 is provided between the main body portion 60 and the positive electrode connection portion 62.

[0049] In one embodiment of the present disclosure, there is at least one connection strip between the main body portion 60 and the positive electrode connection portion 62. The connection strip constitutes a fusible portion 63, and the connection strip is constructed as a protruding arch. For example, as shown in FIGS. 14 and 15, there is an opening 69 between the main body portion 60 and the positive electrode connection portion 62, and two connection strips positioned on both sides of the opening 69 respectively constitute the fusible portion 63. Each connection strip constitutes an arch protruding upward with respect to the main body portion 60 and the positive electrode connection portion 62. With the above design, the arch shape of the fusible portion 63 may enable the position of the positive electrode connection portion 62 to have movable elasticity, so that the position of the positive electrode connection portion 62 may have a relatively large movement so as to be connected to the positive electrode of the corresponding battery cell (for example, assembly position tolerance), and the fusible portion 63 can withstand the relative movement (for example, relative movement caused by vibration) between the positive electrode connection portion 62 and the main body portion 60.

[0050] As shown in FIGS. 10 to 13, in one embodiment of the present disclosure, two adjacent trays 22 are connected by a connection structure. The connection structure includes a latching piece provided on one of the two adjacent trays 22 and a latching block provided on the other of the two adjacent trays 22.

[0051] As shown in FIGS. 10 to 13, in one embodiment of the present disclosure, the latching piece 221 is constructed as a pair of latching legs, and the tips of the two latching legs have latching hooks 222 facing each other. The latching block is configured as a T-shaped protruding block 223. With the above design, when the pair of latching legs pass through the T-shaped protruding block 223, the pair of latching legs elastically expand, and after the latching hooks 222 of the pair of latching legs pass through the T-shaped protruding block 223, they elastically recover and latch with the T-shaped protruding block 223.

[0052] As shown in FIGS. 14 and 15, in one embodiment of the present disclosure, each component having a negative electrode connection portion 64 among the plurality of components of the connection bus bar A produces a negative electrode connection portion 64 configured as an arc-shaped sheet body that spreads toward two side surfaces.

[0053] As shown in FIGS. 14 and 15, in one embodiment of the present disclosure, there is a stepped portion 67 that is located between the main body portion 60 and the negative electrode connection portion 64 and bends downward.

[0054] It should be noted here that the battery connection module illustrated in the drawings and described in this specification is only an example of some of many types of battery connection modules that can employ the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are not limited to any details or any component of the battery connection module shown in the drawings or described in this specification.

[0055] In conclusion, with the above design, the battery connection module proposed by the present disclosure can be adapted to a battery cell array in which the battery cells are irregularly arranged, each battery cell in the battery cell array has a positive electrode and a negative electrode on the same end face, and the battery cells are arranged alternately in corresponding rows for every two adjacent columns so as to form a regular symmetric arrangement. In such a type of battery cell array, the battery connection module promoted by the present disclosure can realize connections with more battery cells using one connection busbar, can connect battery cells that are not positioned at regular symmetric positions, and at the same time, can connect battery cells using a plurality of connection busbars each having a different irregular symmetric configuration.

[0056] Exemplary embodiments of the battery connection module proposed by the present disclosure are described and / or illustrated in detail above. However, embodiments of the present disclosure are not limited to the specific embodiments described herein. On the contrary, the components and / or steps of each embodiment can be used separately and independently from the other components and / or steps described herein. Each component and / or step of one embodiment can also be used in combination with other components and / or steps of other embodiments. When introducing elements / components / etc. described and / or illustrated herein, the terms "one", "a / an", and "the above" are used to indicate the presence of one or more elements / components / etc. The terms "include / includes / including", "comprise / comprises / comprising", and "has / have / having" are used to mean open inclusion, meaning that there may be other elements / components / etc. in addition to the listed elements / components / etc. In addition, the terms "first" and "second" in the claims and the specification are used only as marks and not as numerical limitations on their objects.

[0057] Although the battery connection module proposed by the present disclosure has been described according to different specific embodiments, those skilled in the art will recognize that the implementation forms of the present disclosure can be modified within the spirit and scope of the claims.

Claims

1. A battery connection module used for connecting a battery cell array, wherein the battery cell array includes a plurality of columns, each column includes battery cells, and the number of battery cells is the same, the corresponding battery cell of one of the adjacent columns is positioned between two corresponding battery cells of the other of the adjacent columns, the plurality of columns repeat the arrangement of the adjacent columns in the row direction to form a plurality of rows of battery cells, and the corresponding battery cell of one of the adjacent rows is positioned between two corresponding battery cells of the other of the adjacent rows. Each battery cell has a positive electrode and a negative electrode positioned on the same end face, and the battery connection module a tray, and a plurality of connection busbars assembled on the tray. Each connection busbar has a plurality of components, and each of some of the plurality of components has a main body portion, a positive electrode connection portion extending from a first end of the main body portion, and a negative electrode connection portion extending from a second end of the main body portion. Each of some of the plurality of components has a main body portion and only has a positive electrode connection portion extending from a first end of the main body portion. Each of some of the plurality of components has a main body portion and only has a negative electrode connection portion extending from a second end of the main body portion. The positive electrode connection portion is connected to the positive electrode of one corresponding battery cell, the negative electrode connection portion is connected to the negative electrode of one corresponding battery cell, a material removal portion is provided on the main body portion, a fusible portion is constructed by the material removal portion, the fusible portion is provided on the main body portion close to the negative electrode connection portion, the main body portions of the plurality of components are arranged parallel to each other, and the adjacent main body portions are integrally connected by their respective connection portions. In each connection busbar, each of some of the plurality of components connects the positive and negative electrodes of two battery cells every other column, each of some of the plurality of components connects the positive and negative electrodes of two battery cells in the same row, each of some of the plurality of components connects only the positive electrode of one battery cell, and each of some of the plurality of components connects only the negative electrode of one battery cell. A battery connection module.

2. The main body portion has a planar structure and extends linearly. The battery connection module according to claim 1, wherein the thickness of the positive electrode connection portion is less than the thickness of the main body portion, and the lower surface of the positive electrode connection portion is on the same plane as the lower surface of the main body portion.

3. The battery connection module according to claim 1, wherein the negative electrode connection portion of each component of the connection bus bar has two branched leg portions.

4. A fusible portion is provided in the main body portion of each component of the connection bus bar, and the cross-sectional area of the fusible portion in the thickness direction is the smallest with respect to the cross-sectional area of other portions of the main body portion. The battery connection module according to claim 1.

5. The material removal portion is an opening constructed on the main body portion, and two edge strips on both sides of the opening together constitute the fusible portion, and the two edge strips are constructed in a V shape protruding toward each other and toward the inside of the opening. The battery connection module according to claim 1.

6. The battery connection module according to claim 1, wherein an assembly post is integrally provided on the tray, and an assembly hole corresponding to the assembly post is provided on the connection bus bar.

7. Each column of the battery cell array has Y battery cells and is the same in terms of the number of battery cells. Each connection bus bar includes X positive electrode connection portions and X negative electrode connection portions, and X is greater than Y. The battery connection module according to claim 1.

8. The plurality of connection bus bars are divided into a plurality of groups, and one of the plurality of groups is repeatedly arranged. The battery connection module according to claim 7, wherein each group includes at least two connection bus bars, and the connection bus bars in the same group are not completely the same in terms of structural features.

9. Each column of the battery cell array includes three battery cells, whereby six rows of battery cells are configured within the battery cell array. Each connection bus bar has six components, five positive electrode connection portions, and five negative electrode connection portions. The battery connection module according to claim 8.

10. The battery connection module according to claim 9, wherein the plurality of connection bus bars having different structural features are arranged repeatedly such that a plurality of groups are formed to connect the battery cells.

11. The battery connection module according to claim 10, wherein each connection bus extends across four rows of battery cells.

12. The battery connection module according to claim 1, wherein two adjacent trays are connected by a connection structure, the connection structure including a latching piece provided on one of the two adjacent trays and a latching block provided on the other of the two adjacent trays.

13. The battery connection module according to claim 12, wherein the latching piece is constructed as a pair of latching legs, the tip portions of the two latching legs having latching hooks facing each other, and the latching block is configured as a T-shaped protruding block.

14. The battery connection module according to claim 1, wherein each component having a negative electrode connection portion among a plurality of components of the connection bus forms the negative electrode connection portion as an arcuate sheet body extending toward two side surfaces.

15. The battery connection module according to claim 14, wherein there is a stepped portion that bends downward between the main body portion and the negative electrode connection portion.

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