CCS framework and battery pack

Abstract

The utility model discloses a CCS framework and a battery pack, the CCS framework comprises a front module, a rear module and a conduction assembly used for connecting battery cells in series, the conduction assembly comprises a cross-module conduction piece and adjacent conduction pieces, and the battery cells in the front module are sequentially connected in series through the adjacent conduction pieces; the last string of battery cells of the front module and the adjacent battery cells of the rear module are connected in series through the cross-module conduction pieces, and the adjacent battery cells of the same battery cell group in the rear module are connected in series through the adjacent conduction pieces; and the adjacent battery cells of the adjacent battery cell groups in the rear module are connected in series through a cross-module conducting piece. The battery pack is formed by connecting a plurality of battery cell groups in series by adopting the CCS framework. According to the utility model, the series connection of the battery cells is not carried out by taking the battery cell module as a unit, but the series connection of the adjacent battery cells is carried out by taking the battery cells as a unit based on the arrangement sequence of the battery cells, the distance between the two adjacent battery cells is small, and the use amount of copper bars is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to battery technical field, concretely relates to a CCS framework and battery package. BACKGROUND

[0002] CCS: power battery integrated busbar, it is the key assembly in battery module, it is integrated as a whole through laser welding technology, FPC (flexible circuit), plastic structural member, copper bar, aluminum bar and other materials, realize efficient connection and management of battery module.

[0003] At present, the connection mode of the battery cell is sequentially arranged according to the logic of collection and distribution and the position of the battery cell of PACK, for example, the last string of battery cells of the previous module is connected to the first string of battery cells of the next module after the arrangement of a module.

[0004] But the last string of battery cells of the previous module and the first string of battery cells of the next module are often close, and such arrangement mode can make the series connection distance between one module and another module span multiple battery cells, and the span between two points is large, so it is necessary to set the copper bar to make the two series connection points conductive connection, and the two strings of battery cells on both sides of the copper bar need to be compensated by software, and if the copper bar is too long, it can even affect the compensation of BMS. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a CCS framework and battery package, which does not connect the battery cells in units of battery cell modules, but connects the adjacent battery cells in units of battery cells based on the arrangement order of the battery cells, the spacing between the adjacent two battery cells is small, and the use amount of the copper bar is reduced.

[0006] The utility model solves the technical problems by adopting the technical scheme that a CCS framework and battery package are provided, which comprises a front module, a rear module and a conductive assembly for connecting battery cells, the conductive assembly comprises a cross-module conductive piece and an adjacent conductive piece, the battery cells in the front module are connected in series through the adjacent conductive piece, the last string of battery cells of the front module and the adjacent battery cells of the rear module are connected in series through the cross-module conductive piece, the adjacent battery cells of the same battery cell group in the rear module are connected in series through the adjacent conductive piece, and the adjacent battery cells of the adjacent battery cell groups in the rear module are connected in series through the cross-module conductive piece.

[0007] Further, the cross-module conductive piece comprises a structural conductive piece, and the last string of battery cells of the front module and the adjacent battery cells of the rear module are connected in series through the structural conductive piece.

[0008] Further, the structure conducting piece includes a square piece and an insertion piece, the square piece is connected in conduction with the last string of the battery cells of the front module, the insertion piece is inserted into one battery cell group in the rear module adjacent to the front module, and is connected in conduction with one battery cell closest to the last string of battery cells in the battery cell group, so that the front module and the rear module are connected in series.

[0009] Further, the rear module includes a plurality of battery cell groups, the plurality of battery cell groups are arranged in parallel, and the cross-module conducting piece includes a plate-type conducting piece, and adjacent battery cells of adjacent battery cell groups in the rear module are connected in series through the plate-type conducting piece.

[0010] Further, the plate-type conducting piece includes a first welding piece, an extension piece and a second welding piece, the first welding piece and the second welding piece are arranged on two sides of the extension piece, the interval between the left mirror image group and the right mirror image group matches the length of the second piece, and the first welding piece and the second welding piece are connected in conduction with adjacent battery cells on two sides respectively, so that adjacent battery cells in adjacent battery cell groups are connected in series.

[0011] Further, the plurality of battery cell groups in the rear module are mirror-symmetric, and the plurality of battery cell groups are divided into a left mirror image group and a right mirror image group, and the cross-module conducting piece further includes a cross-mirror conducting piece, and adjacent battery cells of the left mirror image group and the right mirror image group are connected in series through the cross-mirror conducting piece.

[0012] Further, the cross-mirror conducting piece includes a first piece, a second piece and a third piece, the first piece and the third piece are arranged on two sides of the second piece, the length of the second piece matches the interval of the mirror symmetry, and the first piece and the third piece are connected in conduction with adjacent battery cells on two sides respectively, so that the left mirror image group and the right mirror image group are connected in series.

[0013] Further, the flexible circuit is further provided with a plurality of first collecting pieces and a plurality of second collecting pieces, a thermistor is arranged on the second collecting piece, and the flexible circuit is connected in conduction with the battery cell through the first collecting piece and the second collecting piece.

[0014] The first collecting piece and the second collecting piece can be directly connected in conduction with the battery cell, or the first collecting piece and the second collecting piece can be connected in conduction with the battery cell through a conducting assembly, and each collecting piece is connected in conduction with the battery cell through a conducting assembly welded on the battery cell.

[0015] Further, the front module includes a negative electrode group and a positive electrode group, and the negative electrode group and the positive electrode group are connected in series with the rear module through the structure conducting piece.

[0016] The utility model further provides a battery pack, the battery pack adopts a CCS framework to connect a plurality of battery cell groups in series.

[0017] The utility model discloses the beneficial effect is:

[0018] The utility model discloses a kind of CCS framework and battery pack, no longer with the uniting of battery cell module to carry out the series connection of battery cell, but with the uniting of battery cell to carry out the series connection of adjacent battery cell, the conduction of adjacent battery cell is carried out through conduction assembly, realize the framework layout of CCS, the spacing between series connection battery cell is shorter, copper bar can not be provided in rear module, only copper bar is provided at the module of positive pole / negative pole.

[0019] The application conduction assembly includes cross-module conduction piece, adjacent conduction piece, cross-mirror conduction piece, wherein, cross-module conduction piece is divided into structural conduction piece across front module and rear module, and plate-type conduction piece across rear module.

[0020] Based on the CCS framework of the application, the battery cells are connected in series in a relatively shorter manner, and from the perspective of the module unit, the series connection of the battery cells is out of order, but the connection distance between the battery cells is shorter, and copper bars do not need to be provided.

[0021] Based on the battery cell series connection manner of the application, the CCS can allow differential design, and does not require a strictly mirror-symmetrical layout to prevent on-site misloading and miswelding.

[0022] Based on the CCS framework of the application, the battery cells are packaged to form a battery pack, the correction of copper bar connection is saved, the production efficiency is improved, and the cost is saved; the overall weight of the battery pack is reduced, the space inside the pack is saved, and wiring is facilitated; at the same time, the demand for voltage compensation is low, and even no voltage compensation is needed, which does not affect the compensation of the BMS. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments of the present utility model and, together with the description, serve to explain the principles of the present utility model. In these drawings, similar reference numerals are used to designate similar elements. The drawings in the following description are some embodiments of the present utility model, not all embodiments. For ordinary skilled persons in the art, other drawings can be obtained from these drawings without creative labor.

[0024] Figure 1 It is a schematic diagram of a CCS framework of the utility model embodiment;

[0025] Figure 2 It is a structural diagram of cross-module structural conduction piece;

[0026] Figure 3 It is adjacent conduction piece in module;

[0027] Figure 4 It is plate-type conduction piece across module;

[0028] Figure 5 for cross image conducting piece;

[0029] Figure 6 for the first collection piece;

[0030] Figure 7 for the second collection piece;

[0031] Figure 8 for Figure 1 structure enlarged view at A in the middle;

[0032] Figure 9 for the layout of the battery cell group when matching the CCS architecture;

[0033] Figure 10 for the distribution of the collection area of the AFE chip based on the series division of the battery cell.

[0034] In the figure: 1, front module; 2, rear module; 3, structural conducting piece; 4, adjacent conducting piece; 5, plate conducting piece; 6, cross image conducting piece; 7, first collection piece; 8, second collection piece; 9, thermistor; 10, flexible circuit; 11, negative group; 12, positive group; 21, first battery cell group; 22, second battery cell group; 23, third battery cell group; 24, fourth battery cell group; 25, fifth battery cell group; 26, sixth battery cell group; 31, square piece; 32, inserted piece; 51, first soldering piece; 52, extension piece; 53, second soldering piece; 61, first piece; 62, second piece; 63, third piece. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application and the prior art, specific implementation manners of the present application will be described below with reference to the drawings. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without paying any creative labor, and other embodiments can also be obtained. In addition, the design direction is only to represent the relative position relationship between the components, not the absolute position relationship.

[0036] The present application provides a CCS architecture, please refer to Figures 1-8, mainly including a front module 1, a rear module 2 and a conduction assembly for series connection of the battery cells, the conduction assembly includes a cross-module conduction piece, adjacent conduction pieces 4, the battery cells in the front module 1 are connected in series through the adjacent conduction pieces 4 in turn; the last series of battery cells in the front module 1 and the adjacent battery cells in the rear module 2 are connected in series through the cross-module conduction piece, the adjacent battery cells in the same battery cell group in the rear module 2 are connected in series through the adjacent conduction pieces 4, and the adjacent battery cells in the adjacent battery cell groups in the rear module 2 are connected in series through the cross-module conduction piece.

[0037] In the present application, the battery cells are connected in series according to the principle of adjacent and nearest, and the battery cells in the same battery cell group and different battery cell groups are connected in series through the conduction assembly.

[0038] The conduction assembly can be divided into the cross-module conduction piece and the adjacent conduction piece 4, according to the actual situation, the cross distance between the front module and the rear module is different from the conventional cross distance between the different battery cell groups in the rear module, thus, the cross-module conduction piece can be divided into the structural conduction piece 3 specially used for the conduction connection between the front module and the rear module and the plate-type conduction piece 5 specially used for the conduction connection between the battery cell groups in the rear module; the adjacent conduction piece 4 is used for the conduction connection between the adjacent battery cells in the same battery cell group, which is the same as the existing conduction form.

[0039] Meanwhile, due to the mirror image layout existing in the existing layout, there is a mirror image interval in the rear module, the mirror image cross distance is also different from the above two cross distances, thus, a cross-mirror conduction piece 6 specially used for crossing the mirror image interval can be additionally provided, compared with the above two cross conduction pieces, the number of the cross-mirror conduction piece 6 is smaller, generally only one is needed in one rear module.

[0040] In the embodiment of the present application, the last series of battery cells in the front module 1 and the adjacent battery cells in the rear module 2 are connected in series through the structural conduction piece 3, so that the last series of battery cells in the front module 1 and the closest battery cells in the rear module 2 are connected in series.

[0041] Specifically, the front module 1 includes a negative electrode group 11 and a positive electrode group 12, the negative electrode group 11 and the positive electrode group 12 are connected in series through the structural conduction piece 3 with the rear module 2 respectively; the battery cells in the negative electrode group 11 can be connected in series through the adjacent conduction piece 4 in turn, and the battery cells in the positive electrode group 12 can be connected in series through the adjacent conduction piece 4 in turn.

[0042] The adjacent conduction piece 4 can be a two-piece structure, as shown in Figure 4 , one piece is connected in conduction with the left battery cell, and the other piece is connected in conduction with the right battery cell, and the conduction connection mode can be welding, screwing, etc.

[0043] In one specific embodiment, the structural conductive component 3 includes a square piece 31 and a insert 32. The square piece 31 is conductively connected to the last string of cells in the front module 1. The insert 32 is inserted into a cell group located adjacent to the front module 1 in the rear module 2, and is conductively connected to the cell closest to the last string of cells in that cell group, thus connecting the front module 1 and the rear module 2 in series. The conductive connection can be achieved by welding, screwing, etc. The square piece 31 and the insert 32 may not be on the same plane and may have a height difference to adapt to different installation environments or possible height differences between the front module 1 and the rear module 2. An aluminum structure, copper structure, etc., can be used to adaptively adjust the height difference between the square piece 31 and the insert 32. The square piece 31 may be a single-sided structure of an adjacent conductive component 4, while the insert 32 is relatively thin for easy insertion and conductive connection.

[0044] Specifically, with Figure 1 For example, based on the principle of proximity in series connection, the last string of cells in the negative electrode group 11 should be connected in series with the cell closest to it in the first cell group (first cell group 21) on the left side of the rear module 2, so that the negative electrode group 11 is connected in series with the rear module 2; similarly, the last string of cells in the positive electrode group 12 should be connected in series with the cell closest to it in the first cell group (sixth cell group 26) on the right side of the rear module 2, so that the positive electrode group 12 is connected in series with the rear module 2.

[0045] It is understandable that corresponding insertion positions, screw holes, welding points, etc. can be reserved on the CCS structure plate so that the structural conductive part 3 can connect the front module 1 and the rear module 2 in series.

[0046] In the embodiments of this application, the rear module 2 includes multiple battery cell groups, which are arranged in parallel, such as... Figure 9 As shown, the cross-module conductive component includes a plate-type conductive component 5, and adjacent cells of adjacent cell groups in the rear module 2 are connected in series through the plate-type conductive component 5.

[0047] In one specific embodiment, the plate-type conductive component 5 includes a first solder piece 51, an extension piece 52, and a second solder piece 53. The first solder piece 51 and the second solder piece 53 are respectively disposed on both sides of the extension piece 52. The length of the extension piece matches the spacing between adjacent cell groups. The first solder piece 51 and the second solder piece 53 are respectively connected to the adjacent cells on both sides, so that the adjacent cells in the adjacent cell groups are connected in series, rather than connecting two adjacent cell groups in series.

[0048] The preferred application environment for the plate-type conductive component 5 is between adjacent cells of two adjacent cell groups that are flush. At least two cells have their conduction points aligned and flush, rather than misaligned. When adjacent cells that are aligned and flush are connected in series, the spacing is smaller. For cases where cells are not flush but aligned, the structure of the extension piece 52 of the plate-type conductive component 5 can be adjusted so that the two ends have different heights, so that it can be used normally.

[0049] Based on the mirror image layout of the battery module in the actual situation, the plurality of battery cell groups in the rear module 2 are mirror symmetrical, and the plurality of battery cell groups are divided into a left mirror image group and a right mirror image group; the cross-module conduction piece further includes a cross-mirror conduction piece 6, and the adjacent battery cells of the left mirror image group and the right mirror image group are connected in series through the cross-mirror conduction piece 6.

[0050] In one specific embodiment, the cross-mirror conduction piece 6 includes a first sheet 61, a second sheet 62, and a third sheet 63, the first sheet 61 and the third sheet 63 are respectively arranged on both sides of the second sheet 62, and the length of the second sheet matches the interval of the mirror symmetry, that is, the interval between the left mirror image group and the right mirror image group matches the length of the second sheet, and the first sheet 61 and the third sheet 63 are respectively connected in conduction with the adjacent battery cells on both sides, so that the left mirror image group and the right mirror image group are connected in series.

[0051] At the same time, the cross-mirror conduction piece 6 also connects part of the battery cells in the two adjacent battery cell groups in series (that is, part of the battery cells in the third battery cell group 23 and the fourth battery cell group 24 are connected in series).

[0052] Please refer to Figure 9 , Figure 9 When the CCS architecture based on the present application is equipped with battery cell groups, the arrangement of the battery cell groups is shown in the figure, at this time, the series connection mode of each battery cell in the battery cell group is not the same, and can be connected in series with the adjacent battery cells in the adjacent battery cell group. Among them, the battery cell group corresponding to the rear module 2 includes: the first

[0053] The CCS architecture of the present application has diversification in the series connection mode, but when the number of AFE chips is allocated, it can still be allocated based on the series connection order, as Figure 10 shown.

[0054] In one specific embodiment, Figure 9 The CCS architecture shown in includes 120 battery cells, eight battery cell groups, two nine-cell battery cell groups corresponding to the front module 1, that is, the negative electrode group 11 and the positive electrode group 12; six seventeen-cell battery cell groups corresponding to the rear module 2, that is, the first battery cell group 21, the second battery cell group 22, the third battery cell group 23, the fourth battery cell group 24, the fifth battery cell group 25, and the sixth battery cell group 26; and the series connection is performed by the conduction assembly carried in the front module 1 and the conduction assembly carried in the rear module 2.

[0055] For example, nine AFE chips can be provided for data acquisition of the battery cells, and the acquisition objects include voltage and temperature, wherein the voltage can be acquired by the first acquisition sheet 7 and the second acquisition sheet 8, and the temperature can be acquired by the thermistor 9 carried on the second acquisition sheet 8. The detection data is transmitted to the AFE chip, the BMS system, etc. through the flexible circuit 10.

[0056] The battery cell and the flexible circuit 10 can be connected via the first acquisition chip 7 and the second acquisition chip 8. Temperature acquisition can be selected independently. A thermistor 9 is mounted on the second acquisition chip 8. When the thermistor 9 is not mounted, the second acquisition chip can only acquire voltage.

[0057] The first acquisition piece 7 and the second acquisition piece 8 can be directly connected to the battery cell, or they can be connected to the battery cell through a conductive component. Each acquisition piece is connected to the battery cell through a conductive component welded to the battery cell. For example, the first acquisition piece 7 is connected to the battery cell through an adjacent conductive component 4, the first acquisition piece 7 is connected to the battery cell through a plate-type conductive component 5, the first acquisition piece 7 is connected to the battery cell through a cross-mirror component 6, or the first acquisition piece 7 is connected to the battery cell through a structural conductive component 3. The second acquisition piece 8 is connected in the same way.

[0058] For example, the flexible circuit 10 can be laid inside the two ends of the cell assembly, spanning across the mirror assembly, such as... Figure 1 As shown, the conducting component is located between adjacent cells and across the cell group, while the flexible circuit 10 is located on the inner side of the two poles of the cell group. The two do not overlap and can be directly connected through the acquisition chip.

[0059] Taking adjacent conductive element 4 as an example, when collecting voltage, the flexible circuit 10 and the adjacent conductive element 4 are bridged and connected through the first collecting chip 7; when collecting temperature, the flexible circuit 10 and the adjacent conductive element 4 are bridged and connected through the second collecting chip 8, such as... Figure 8 As shown, the plate-type conductive element 5 and the cross-mirror conductive element 6 can be set in the same way, while the structural conductive element 3 only needs to collect the voltage on the square piece 31 through the first acquisition piece 7.

[0060] Specifically, in terms of the allocation of the number of battery cells, the nine AFE chips are: AFE1, AFE2, AFE3, AFE4, AFE5, AFE6, AFE7, AFE8, and AFE9. Among them, AFE1 has 14 battery cells, AFE2 has 14 battery cells, AFE3 has 11 battery cells, AFE4 has 14 battery cells, AFE5 has 14 battery cells, AFE6 has 14 battery cells, AFE7 has 12 battery cells, AFE8 has 14 battery cells, and AFE9 has 13 battery cells.

[0061] Corresponding to Figure 1 In this context, it can be concluded from the connection method of the conductive components that the series connection method between the cells is that they are connected in series with the nearest other cells. The spacing between two cells connected in series is small, so there is no need to set copper busbars. Especially in the rear module 2, only the electrode copper busbars need to be set in the front module 1. The electrode copper busbars include the positive copper busbar of the positive electrode group 12 and the negative copper busbar of the negative electrode group 11.

[0062] It should be clearly stated that the appendix to this application Figure 1 The layout of the conductive components shown is not unique. When the layout of the cell group is determined, there is no substantial difference between the cells in the same cell group being connected in series with their left or right neighbors, and there is no substantial difference between the cells in different cell groups being connected in series with their upper or lower neighbors. Therefore, multiple series connection methods are possible and can be adjusted according to actual needs.

[0063] When a mirror-symmetric layout exists, the cell group on this side (left mirror group) can be connected in series with the adjacent cells of the adjacent cell group on the mirror side (right mirror group), so that the two sides of the mirror image are connected in series to form a complete rear cell group. Preferably, the two bottommost adjacent cell groups can be connected in series, such as... Figure 1 As shown in the diagram; it is understandable that when a mirror layout exists, generally only one cross-mirror conductor 6 is needed to connect the two sides of the mirror in series.

[0064] As a special case, when the cells under AFE5 are completely included in the cells in the third cell group 23, and the cells under AFE6 are completely included in the cells in the fourth cell group 24, the cross-mirror conductor 6 will connect the two adjacent cell groups.

[0065] This application also proposes a battery pack, which connects multiple cell groups in series to form a single cell pack based on the above-mentioned CCS architecture. The battery pack can be a single cell pack or multiple cell packs packaged together.

[0066] A battery consisting of a single cell pack can be a small power battery, while a battery pack consisting of multiple cell packs can be a large power battery. The configuration can be adjusted according to actual needs. The adjustment can be made in the following ways: the number of cells in each cell pack, the number of cell packs, and the cell layout can also be adjusted to fit the corresponding installation space.

[0067] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0068] The above is further detailed description of the utility model made in combination with specific preferred embodiments, and the specific embodiments of the utility model cannot be determined to be limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all of them should be regarded as belonging to the protection scope of the utility model.

Claims

1. A CCS architecture, characterized by, The application relates to a battery module, which comprises a front module (1), a rear module (2) and a through component for connecting the battery cells in series, wherein the through component comprises a cross-module through component and adjacent through components (4), the battery cells in the front module (1) are connected in series through the adjacent through components (4), the last series of battery cells in the front module (1) and the adjacent battery cells in the rear module (2) are connected in series through the cross-module through component, the adjacent battery cells in the same battery cell group in the rear module (2) are connected in series through the adjacent through components (4), and the adjacent battery cells in the adjacent battery cell groups in the rear module (2) are connected in series through the cross-module through component.

2. The CCS architecture of claim 1, wherein, The cross-module through component comprises a structural through component (3), and the last series of battery cells in the front module (1) and the adjacent battery cells in the rear module (2) are connected in series through the structural through component (3).

3. The CCS architecture of claim 2, wherein, The structural through component (3) comprises a square sheet (31) and an insertion sheet (32), the square sheet (31) is connected in conduction with the last series of battery cells in the front module (1), the insertion sheet (32) is inserted into a battery cell group in the rear module (2) adjacent to the front module (1) and is connected in conduction with the battery cell closest to the last series of battery cells in the battery cell group, so that the front module (1) and the rear module (2) are connected in series.

4. The CCS architecture of claim 1, wherein, The rear module (2) comprises a plurality of battery cell groups, the plurality of battery cell groups are arranged in parallel, the cross-module through component comprises a plate-type through component (5), and the adjacent battery cells in the adjacent battery cell groups in the rear module (2) are connected in series through the plate-type through component (5).

5. The CCS architecture of claim 4, wherein, The plate-type through component (5) comprises a first welding sheet (51), an extension sheet (52) and a second welding sheet (53), the first welding sheet (51) and the second welding sheet (53) are arranged on the two sides of the extension sheet (52), the length of the extension sheet matches the interval between the adjacent battery cell groups, and the first welding sheet (51) and the second welding sheet (53) are connected in conduction with the adjacent battery cells on the two sides respectively, so that the adjacent battery cells in the adjacent battery cell groups are connected in series.

6. The CCS architecture of claim 1, wherein, The plurality of battery cell groups in the rear module (2) are mirror-symmetrical, and the plurality of battery cell groups are divided into a left mirror-symmetrical group and a right mirror-symmetrical group. The cross-module through component further comprises a cross-mirror through component (6), and the adjacent battery cells in the left mirror-symmetrical group and the right mirror-symmetrical group are connected in series through the cross-mirror through component (6).

7. The CCS architecture of claim 6, wherein, The cross-mirror through component (6) comprises a first sheet (61), a second sheet (62) and a third sheet (63), the first sheet (61) and the third sheet (63) are arranged on the two sides of the second sheet (62), the interval between the left mirror-symmetrical group and the right mirror-symmetrical group matches the length of the second sheet (62), and the first sheet (61) and the third sheet (63) are connected in conduction with the adjacent battery cells on the two sides respectively, so that the left mirror-symmetrical group and the right mirror-symmetrical group are connected in series.

8. The CCS architecture of claim 1, wherein, Also include a flexible circuit (10), the flexible circuit (10) is loaded with a plurality of first acquisition piece (7), second acquisition piece (8), the second acquisition piece (8) is loaded with a thermistor (9), the flexible circuit (10) is connected with the first acquisition piece (7), second acquisition piece (8) and the electric core conduction connection.

9. The CCS architecture of claim 2, wherein, The front module (1) includes a negative group (11), a positive group (12), the negative group (11), the positive group (12) is respectively connected in series with the rear module (2) through the structure conduction piece (3).

10. A battery pack, characterized by, The battery pack adopts the CCS architecture of any one of claims 1-9 to connect a plurality of cell groups in series.

Images