Battery assembly structure and battery module

Abstract

A battery assembly structure and a battery module. A support (100) is provided with a first through hole group (102). An electric connection board (200) is arranged on the support (100); a first board surface is provided with a first connection terminal group (202), and a second board surface is provided with a second connection terminal group (204), the first connection terminal group (202) being connected to the second connection terminal group (204). The second connection terminal group (204) is arranged corresponding to the first through hole group (102). An electrical load or an external power supply can be connected to the second connection terminal group (204) by means of the first through hole group (102).

Description

Battery assembly structure and battery module

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on April 3, 2024, with application number 202420690315.2. The entire contents of the above application are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of battery technology, and in particular to a battery assembly structure and a battery module. Background Art

[0003] Soft-pack batteries consist of a liquid lithium-ion battery coated in a polymer shell. They offer advantages such as excellent safety, light weight, and flexible design. They are widely used as replaceable batteries in portable appliances, power tools, and other applications. To meet device requirements, soft-pack battery assembly designs can be used in devices with either external or internal replaceable batteries. SUMMARY OF THE INVENTION

[0004] In the related art, soft-pack batteries used in external-battery or internal-battery devices cannot meet the needs of high-power devices through series or parallel combination, and the cost is high and the replacement assembly process is complicated.

[0005] In a first aspect, the present application provides a battery assembly structure, the battery assembly structure comprising:

[0006] A bracket, wherein the bracket is provided with a first through hole group;

[0007] An electrical connection plate is provided on the bracket; a first connection terminal group is provided on the first board surface of the electrical connection plate, a second connection terminal group is provided on the second board surface of the electrical connection plate, the first connection terminal group is connected to the second connection terminal group; the second connection terminal group is provided corresponding to the first through hole group; the first connection terminal group is provided to connect the soft-pack battery cell group.

[0008] In a second aspect, the present application provides a battery module, comprising a soft-pack battery cell group and a battery assembly structure as described above; the soft-pack battery cell group is connected to the battery assembly structure. Beneficial effects

[0009] In the battery assembly structure provided in the present application, the battery assembly structure includes a bracket and an electrical connection plate, the bracket is provided with a first through hole group; the electrical connection plate is provided on the bracket; the first board surface of the electrical connection plate is provided with a first connection terminal group, and the second board surface of the electrical connection plate is provided with a second connection terminal group, the first connection terminal group is connected to the second connection terminal group; the second connection terminal group is provided corresponding to the first through hole group; the first connection terminal group is provided to connect the soft-pack battery cell group, and the soft-pack battery cells contained in the soft-pack battery cell group can be connected to the first connection terminal group in series or parallel to realize the assembly and replacement of the soft-pack battery cells.

[0010] The present application fixes and supports the electrical connection plate through a bracket, connects the soft-pack battery group through the first connection terminal group of the electrical connection plate, so that the soft-pack battery cells included in the soft-pack battery group can be connected in series or in parallel to meet the use of high-power equipment. The second connection terminal group of the electrical connection plate corresponds to the first through-hole group of the bracket, and the electrical load or external power supply can be directly connected to the second connection terminal group through the first through-hole group to achieve electrical connection between the electrical load or external power supply and the soft-pack battery group, thereby simplifying the replacement and assembly process of the soft-pack battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG1 is a schematic diagram of the three-dimensional structure of a battery assembly structure according to an embodiment of the present application;

[0012] FIG2 is a schematic diagram of the exploded structure of the battery assembly structure according to an embodiment of the present application from a first perspective;

[0013] FIG3 is a schematic diagram of the exploded structure of the battery assembly structure according to an embodiment of the present application from a second perspective;

[0014] FIG4 is a schematic diagram of a partial cross-sectional structure of a battery assembly structure according to an embodiment of the present application;

[0015] FIG5 is an enlarged structural diagram of point A in FIG4 ;

[0016] FIG6 is a schematic diagram of the three-dimensional structure of a battery module in an embodiment of the present application;

[0017] FIG7 is a schematic diagram of the exploded structure of the battery module from a first perspective in an embodiment of the present application;

[0018] FIG8 is a schematic diagram of the exploded structure of the battery module from a second perspective in an embodiment of the present application.

[0019] Reference numerals:

[0020] 100. Bracket; 102. First through-hole group; 106. First positioning portion; 108. Third positioning portion; 112. First limit group; 114. Guide member; 116. Guide surface; 200. Electrical connection plate; 202. First connection terminal group; 204. Second connection terminal group; 208. Second positioning portion; 212. Fourth positioning portion; 300. Housing; 302. Mounting portion; 400. Soft-pack battery cell group; 402. Soft-pack battery cell; 404. Electrode connecting piece; 406. Extension plate; 500. Spacer. Modes for Carrying Out the Invention

[0021] In the description of this application, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0022] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, with the first feature having a higher horizontal height than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, with the first feature having a lower horizontal height than the second feature.

[0023] In the description of this embodiment, terms such as "upper," "lower," "left," "right," "front," and "rear" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and do not have any special meanings.

[0024] In some embodiments, as shown in Figures 1, 2, 3 and 8, a battery assembly structure is provided, including a bracket 100 and an electrical connection plate 200, the bracket 100 is provided with a first through hole group 102; the electrical connection plate 200 is arranged on the bracket 100; the first board surface of the electrical connection plate 200 is provided with a first connection terminal group 202, and the second board surface of the electrical connection plate 200 is provided with a second connection terminal group 204, the first connection terminal group 202 is connected to the second connection terminal group 204; the second connection terminal group 204 is arranged corresponding to the first through hole group 102; the first connection terminal group 202 is arranged to connect the soft-pack battery cell group 400.

[0025] Among them, the bracket 100 can be used to fix the electrical connection plate 200, and the bracket 100 can be an insulating bracket 100 structure made of metal or non-metallic material. Exemplarily, the outer surface of the bracket 100 can be covered with an insulating layer to prevent the bracket 100 from short-circuiting with the electrical connection part. The bracket 100 is provided with a first through-hole group 102, and the first through-hole group 102 can be composed of a plurality of first through-holes. The number of first through-holes can be determined according to the number of second connection terminals included in the second connection terminal group 204. For example, the second connection terminal group 204 may include 3 second connection terminals, and the first through-hole group 102 may include 3 corresponding first through-holes; for another example, the second connection terminal group 204 may include a total positive connection terminal and a total negative connection terminal, and the first through-hole group 102 may include 2 first through-holes.

[0026] The electrical connection board 200 can be mounted on the bracket 100 by bonding, clamping, or screwing, so that the electrical connection board 200 is fixed to the bracket 100. The electrical connection board 200 can be a circuit board. For example, the electrical connection board 200 can include a substrate having a wiring layer disposed thereon. The wiring layer connects the first connection terminal group 202 and the second connection terminal group 204, respectively, so that an electrical connection is established between the first connection terminal group 202 and the second connection terminal group 204.

[0027] The electrical connection plate 200 may have a rectangular structure, with the first surface of the electrical connection plate 200 facing the second surface. The electrical connection plate 200 is provided with a first connection terminal group 202. The first connection terminal group 202 may be composed of a plurality of first connection terminals, the number of which is determined by the number of soft-pack battery cells 402 included in the soft-pack battery group 400. The first connection terminals may be metal connection plates or copper terminals of a flexible printed circuit (FPC). For example, if the soft-pack battery group 400 includes two soft-pack battery cells 402, the first connection terminal group 202 includes four first connection terminals. In some embodiments, the first connection terminal group 202 includes two sets of first connection terminals, each set including one first positive connection terminal and one first negative connection terminal.

[0028] For example, the soft-pack battery group 400 includes two soft-pack battery cells 402. For the soft-pack battery group 400 that should be set as a series connection combination, the first positive connection terminal of the first group is connected to the first negative connection terminal of the second group, the first positive connection terminal of the second group is connected to the total positive connection terminal of the second connection terminal group 204, and the first negative connection terminal of the first group is connected to the total negative connection terminal of the second connection terminal group 204. By connecting the positive end of the first soft-pack battery cell 402 to the first negative connection terminal of the first group, the negative end of the first soft-pack battery cell 402 is connected to the first negative connection terminal of the first group, and the positive end of the second soft-pack battery cell 402 is connected to the first negative connection terminal of the second group, and the negative end of the second soft-pack battery cell 402 is connected to the first negative connection terminal of the second group, the two soft-pack battery cells 402 are connected and assembled in series.

[0029] In another example, the soft-pack battery group 400 includes two soft-pack battery cells 402. For the soft-pack battery group 400 that should be set as a parallel connection combination, the first positive connection terminal of the first group is connected to the first positive connection terminal of the second group, the first negative connection terminal of the first group is connected to the first negative connection terminal of the second group, the first positive connection terminal of the first group and the first positive connection terminal of the second group are respectively connected to the total positive connection terminal of the second connection terminal group 204, and the first negative connection terminal of the first group and the first negative connection terminal of the second group are respectively connected to the total negative connection terminal of the second connection terminal group 204. By connecting the positive end of the first soft-pack battery cell 402 to the first negative connection terminal of the first group, the negative end of the first soft-pack battery cell 402 to the first negative connection terminal of the first group, and the positive end of the second soft-pack battery cell 402 to the first negative connection terminal of the second group, and the negative end of the second soft-pack battery cell 402 to the first negative connection terminal of the second group, the two soft-pack battery cells 402 are connected and assembled in parallel.

[0030] In the embodiment, a first through hole group 102 is provided through the bracket 100; an electrical connection plate 200 is provided on the bracket 100; a first connection terminal group 202 is provided on the first board surface of the electrical connection plate 200, and a second connection terminal group 204 is provided on the second board surface of the electrical connection plate 200, and the first connection terminal group 202 is connected to the second connection terminal group 204; the second connection terminal group 204 is provided corresponding to the first through hole group 102; the first connection terminal group 202 is configured to connect to the soft-pack battery group 400, and the soft-pack battery cells 402 included in the soft-pack battery group 400 can be connected to the first connection terminal group 202 in series or in parallel, so as to realize the assembly and replacement of the soft-pack battery cells 402. The present application fixes and supports the electrical connection plate 200 through the bracket 100, and connects the soft-pack battery group 400 through the first connection terminal group 202 of the electrical connection plate 200, so that the soft-pack battery cells 402 included in the soft-pack battery group 400 can be connected in series or in parallel to meet the use of high-power equipment. The second connection terminal group 204 of the electrical connection plate 200 is arranged corresponding to the first through-hole group 102 of the bracket 100, and the electrical load or external power supply can be directly connected to the second connection terminal group 204 through the first through-hole group 102, thereby realizing electrical connection between the electrical load or external power supply and the soft-pack battery group 400, thereby simplifying the replacement and assembly process of the soft-pack battery cells 402.

[0031] In some embodiments, the bracket 100 is provided with a first positioning group; the electrical connection board 200 is provided with a second positioning group; and the second positioning group is provided corresponding to the first positioning group.

[0032] The first positioning group and the bracket 100 may be integrally formed, for example, the first positioning group may be composed of a plurality of protrusions. The second positioning group and the electrical connection plate 200 may be integrally formed, for example, the second positioning group may be composed of a plurality of grooves, with the grooves of the electrical connection plate 200 being used to accommodate corresponding protrusions on the bracket 100, thereby positioning the electrical connection plate 200 on the bracket 100.

[0033] By setting a first positioning group on the bracket 100 and a second positioning group on the electrical connection plate 200, when assembling the electrical connection plate 200, the second positioning group on the electrical connection plate 200 can be aligned with the first positioning group on the bracket 100 for assembly, so that the electrical connection plate 200 can be installed on the bracket 100 in a predetermined direction, avoiding incorrect assembly of the electrical connection plate 200 and causing incorrect connection between the soft-pack battery cell group 400 and the electrical connection plate 200.

[0034] Exemplarily, as shown in Figure 2, the first positioning group includes several first positioning portions 106, and the second positioning group includes several second positioning portions 208; each second positioning portion 208 is distributed on the first side of the electrical connection board 200; each second positioning portion 208 is arranged one by one corresponding to each first positioning portion 106.

[0035] The first positioning portion 106 may be a convex structure, and the second positioning portion 208 may be a groove structure. The first positioning portions 106 are distributed on the same side of the bracket 100. The first side of the electrical connection board 200 may be a long side of the electrical connection board 200. For example, the first positioning group includes two first positioning portions 106, and one first positioning portion 106 is arranged adjacent to the first end of the same side of the bracket 100, and the other first positioning portion 106 is arranged adjacent to the second end of the same side of the bracket 100; the second positioning group includes two second positioning portions 208, and one second positioning portion 208 is arranged adjacent to the first end of the first side of the electrical connection board 200, and the other second positioning portion 208 is arranged adjacent to the second end of the first side of the electrical connection board 200. When assembling the electrical connection board 200, the two second positioning portions 208 on the electrical connection board 200 can be assembled one-to-one with the two first positioning portions 106 on the bracket 100, so that the electrical connection board 200 can be positioned and installed on the bracket 100 in a predetermined direction, thereby improving the assembly convenience of the electrical connection board 200 and the bracket 100.

[0036] In one example, as shown in Figures 2 and 3, the first positioning group also includes a plurality of third positioning portions 108, and the second positioning group also includes a plurality of fourth positioning portions 212; each fourth positioning portion 212 is distributed on the second side of the electrical connection board 200; each fourth positioning portion 212 is arranged one by one corresponding to each third positioning portion 108.

[0037] The third positioning portion 108 may be a convex block structure, and the fourth positioning portion 212 may be a groove structure. For example, the size of the third positioning portion 108 is larger or smaller than the size of the first positioning portion 106, and the size of the third positioning portion 108 is larger or smaller than the size of the fourth positioning portion 212, and the fourth positioning portion 212 is configured to cooperate with the corresponding third positioning portion 108.

[0038] The third positioning portions 108 are distributed on the other side of the bracket 100 . The second side of the electrical connection board 200 is opposite to the first side, that is, the second side of the electrical connection board 200 is the other long side of the electrical connection board 200 . For example, the third positioning group includes two third positioning portions 108, and one third positioning portion 108 is arranged adjacent to the first end of the other side of the bracket 100, and the other third positioning portion 108 is arranged adjacent to the second end of the other side of the bracket 100; the fourth positioning group includes two fourth positioning portions 212, and one fourth positioning portion 212 is arranged adjacent to the first end of the second side of the electrical connection board 200, and the other fourth positioning portion 212 is arranged adjacent to the second end of the second side of the electrical connection board 200. When assembling the electrical connection board 200, the two fourth positioning portions 212 on the electrical connection board 200 can be assembled one-to-one with the two third positioning portions 108 on the bracket 100, so that the electrical connection board 200 can be positioned and installed on the bracket 100 in a predetermined direction, further improving the accuracy of the positioning and assembly of the electrical connection board 200 and the bracket 100.

[0039] In some embodiments, as shown in FIG. 2 and FIG. 4 , the bracket 100 is further provided with a first limiting group 112 ; the first limiting group 112 is configured to limit the electrical connection plate 200 .

[0040] The first position-limiting group 112 may include two position-limiting members, which are disposed oppositely on the bracket 100. The position-limiting members and the bracket 100 may be integrally formed. For example, the position-limiting members may be snap-fit ​​structures, with one position-limiting member being used to engage the third side of the electrical connection board 200, and the other position-limiting member being used to engage the fourth side of the electrical connection board 200, thereby securing the electrical connection board 200 to the bracket 100 and achieving a secure assembly of the electrical connection board 200. It should be noted that the third side and the fourth side of the electrical connection board 200 are opposite each other.

[0041] In some embodiments, as shown in Figures 2 and 4, the bracket 100 is further provided with a guide member 114, the soft-pack battery group 400 includes a plurality of soft-pack battery cells 402, and each soft-pack battery cell 402 is respectively connected to the first connection terminal group 202; the guide member 114 is configured to guide the rotation of each soft-pack battery cell 402.

[0042] The guide member 114 and the bracket 100 may be integrally formed. For example, the bracket 100 may be provided with two guide members 114, wherein one guide member 114 is provided adjacent to one stopper, and the other guide member 114 is provided adjacent to the other stopper.

[0043] For example, as shown in Figures 7 and 8, the soft-pack battery cell group 400 includes two soft-pack battery cells 402. The positive and negative terminals of the two soft-pack battery cells 402 are respectively connected to the first connection terminal group 202, for example, by laser welding. In some embodiments, the soft-pack battery cells 402 can be rotated along the guide member 114 by applying an external force to the soft-pack battery cells 402, thereby achieving rotational assembly of the soft-pack battery cells 402.

[0044] In one example, as shown in FIG. 1 and FIG. 2 , the guide member 114 is provided with a guide surface 116 , and the guide surface 116 guides the rotation of each soft-pack battery cell 402 .

[0045] For example, the positive terminal and negative terminal of the soft-pack battery cell 402 are respectively provided with corresponding electrode connecting sheets 404, wherein the positive terminal and negative terminal of the soft-pack battery cell 402 can be elastic metal sheets, such as nickel sheets.

[0046] An extension plate 406 is provided on the first end face of the soft-pack battery cell 402, and the electrode connecting piece 404 corresponding to the positive end and the electrode connecting piece 404 corresponding to the negative end of the soft-pack battery cell 402 are respectively provided on the extension plate 406, and the extension plate 406 is perpendicular to the first end face; the first end face of the soft-pack battery cell 402 is also provided with a guide plate, which is perpendicular to the first end face and guides perpendicular to the extension plate 406. Exemplarily, the guide plate and the extension plate 406 are an integrally formed structure. When the electrode connecting pieces 404 corresponding to the positive and negative ends of the soft-pack battery cell 402 are connected to the first connecting terminal group 202, the guide surface 116 of the guide member 114 is parallel to the guide plate of the soft-pack battery cell 402, and the guide surface 116 of the guide member 114 is adjacent to the guide plate. By applying external force to the soft-pack battery cell 402, the soft-pack battery cell 402 can be rotated along the guide surface 116 of the guide member 114, thereby realizing the rotational assembly of the soft-pack battery cell 402, thereby improving the convenience of assembling multiple soft-pack battery cell groups 400.

[0047] In some embodiments, as shown in Figures 6 and 7, the battery assembly structure further includes a shell 300; the bracket 100 is further provided with a mounting portion 302; the shell 300 is configured to wrap the soft-pack battery cell group 400, and the first end of the shell 300 is provided on the mounting portion 302 of the bracket 100.

[0048] The housing 300 may be, but is not limited to, a plastic exterior, for example, the housing 300 may be a heat shrink tubing. The mounting portion 302 may be an annular rib structure.

[0049] By wrapping the soft-pack battery cell group 400 with the outer shell 300 and inserting the mounting portion 302 of the bracket 100 into the first end of the outer shell 300, the first end of the outer shell can cover the mounting portion 302 of the wrapped bracket 100, thereby realizing the packaging of the soft-pack battery cell group 400, increasing the protection of the soft-pack battery cell group 400, improving the reliability of the soft-pack battery cell group 400, and preventing the soft-pack battery cell 402 from being scratched or punctured by external forces, etc., which may cause safety risks to the soft-pack battery cell 402.

[0050] In some embodiments, as shown in FIG6 and FIG7 , a battery module is further provided, including a soft-pack battery cell group 400 and a battery assembly structure as described above; the soft-pack battery cell group 400 is connected to the battery assembly structure.

[0051] The soft-pack battery cell group 400 may include a plurality of soft-pack battery cells 402. For example, the soft-pack battery cell group 400 may include two soft-pack battery cells 402. The soft-pack battery cells 402 may be soft-pack lithium battery cells.

[0052] For the detailed description of the soft-pack battery cell group 400 and the battery assembly structure, reference may be made to the detailed description of the soft-pack battery cell group 400 and the battery assembly structure in the above embodiment, which will not be repeated here.

[0053] In the above embodiment, a first through hole group 102 is provided through the bracket 100; the electrical connection plate 200 is provided on the bracket 100; the first board surface of the electrical connection plate 200 is provided with a first connection terminal group 202, and the second board surface of the electrical connection plate 200 is provided with a second connection terminal group 204, and the first connection terminal group 202 is connected to the second connection terminal group 204; the second connection terminal group 204 is provided corresponding to the first through hole group 102; the first connection terminal group 202 is configured to connect to the soft-pack battery group 400, and the soft-pack battery cells 402 included in the soft-pack battery group 400 can be connected to the first connection terminal group 202 in series or in parallel to realize the assembly and replacement of the soft-pack battery cells 402. The present application fixes and supports the electrical connection plate 200 through the bracket 100, and connects the soft-pack battery group 400 through the first connection terminal group 202 of the electrical connection plate 200, so that the soft-pack battery cells 402 included in the soft-pack battery group 400 can be connected in series or in parallel to meet the use of high-power equipment. The second connection terminal group 204 of the electrical connection plate 200 is arranged corresponding to the first through-hole group 102 of the bracket 100, and the electrical load or external power supply can be directly connected to the second connection terminal group 204 through the first through-hole group 102, thereby realizing electrical connection between the electrical load or external power supply and the soft-pack battery group 400, thereby simplifying the replacement and assembly process of the soft-pack battery cells 402.

[0054] In some embodiments, as shown in Figures 7 and 8, the soft-pack battery cell group 400 includes a plurality of soft-pack battery cells 402. The first end surface of the soft-pack battery cell 402 is provided with an extension plate 406, and the extension plate 406 is provided with an electrode connecting piece 404; the electrode connecting piece 404 of each soft-pack battery cell 402 is respectively connected to the first connection terminal group 202.

[0055] The positive terminal and the negative terminal of the soft-pack battery cell 402 are respectively provided with electrode connecting pieces 404 , and the electrode connecting pieces 404 can be elastic metal sheets.

[0056] An extension plate 406 is provided on the first end face of the soft-pack battery cell 402, and the electrode connecting piece 404 corresponding to the positive end and the electrode connecting piece 404 corresponding to the negative end of the soft-pack battery cell 402 are respectively provided on the extension plate 406. The extension plate 406 is perpendicular to the first end face, so that the electrode connecting piece 404 and the first end face of the soft-pack battery cell 402 are spaced apart, which facilitates the connection of the electrode connecting piece 404 of the soft-pack battery cell 402 to the first connection terminal group 202 respectively, thereby improving the assembly convenience of the soft-pack battery cell 402. By setting the first connection terminal group 202 and the second connection terminal group 204 in series or parallel, each soft-pack battery cell 402 can be connected in series or in parallel to meet the use of high-power equipment. The second connection terminal group 204 of the electrical connection plate 200 is set to correspond to the first through-hole group 102 of the bracket 100. The electrical load or external power supply can be directly connected to the second connection terminal group 204 through the first through-hole group 102, thereby realizing electrical connection between the electrical load or external power supply and the soft-pack battery cell group 400, thereby simplifying the replacement assembly process of the soft-pack battery cell 402.

[0057] In some embodiments, as shown in FIG. 5 and FIG. 7 , the soft-pack battery cell group 400 further includes a spacer 500 . The spacer 500 is disposed between the first end surface of the soft-pack battery cell 402 and the electrode connecting sheet 404 .

[0058] The spacer 500 may be EVA foam. It serves to insulate the electrode connection sheet 404 from the first end face of the soft-pack battery cell 402. Placing the spacer 500 between the first end face of the soft-pack battery cell 402 and the electrode connection sheet 404 prevents the electrode connection sheet 404 from scratching the soft-pack battery cell 402, further improving the reliability and protection of the soft-pack battery cell 402.

[0059] Illustratively, a guide plate is further provided on the first end surface of the soft-pack battery cell 402, the guide plate being perpendicular to the first end surface and the guide being perpendicular to the extension plate 406. When the electrode connection pieces 404 corresponding to the positive and negative ends of the soft-pack battery cell 402 are connected to the first connection terminal group 202, the guide surface 116 of the guide member 114 is parallel to the guide plate of the soft-pack battery cell 402, and the guide surface 116 of the guide member 114 is adjacent to the guide plate. By applying an external force to the soft-pack battery cell 402, the soft-pack battery cell 402 can be rotated along the guide surface 116 of the guide member 114, thereby achieving rotational assembly of the soft-pack battery cell 402 and improving the convenience of assembling a plurality of soft-pack battery cell groups 400.

[0060] It should be noted that the battery module may further include components such as label components. A specific battery module may include more components than those described in the above embodiments, or may combine certain components, or have a different component arrangement.

Claims

1. A battery assembly structure, comprising: a bracket, wherein the bracket is provided with a first through hole group; An electrical connection plate, the electrical connection plate is arranged on the bracket and has a first plate surface and a second plate surface; the first plate surface is provided with a first connection terminal group, the second plate surface is provided with a second connection terminal group, the first connection terminal group is connected to the second connection terminal group; the second connection terminal group is arranged corresponding to the first through hole group; the first connection terminal group is configured to connect the soft-pack battery cell group.

2. The power supply circuit according to claim 1, wherein: The bracket is provided with a first positioning group; the electrical connection plate is provided with a second positioning group; The second positioning group is set corresponding to the first positioning group.

3. The battery assembly structure according to claim 2, wherein: The first positioning group includes a plurality of first positioning portions, and the second positioning group includes a plurality of second positioning portions; each of the second positioning portions is distributed on the first side of the electrical connection plate; The second positioning portions are arranged in one-to-one correspondence with the first positioning portions.

4. The battery assembly structure according to claim 3, wherein: The first positioning group further includes a plurality of third positioning portions, and the second positioning group further includes a plurality of fourth positioning portions; each of the fourth positioning portions is distributed on the second side of the electrical connection plate; Each of the fourth positioning portions is provided in one-to-one correspondence with each of the third positioning portions.

5. The power supply circuit according to claim 2, wherein: The bracket is also provided with a first limiting group; The first limiting group is configured to limit the electrical connection plate.

6. The battery assembly structure according to claim 1, wherein: The bracket is further provided with a guide member, the soft-pack battery group includes a plurality of soft-pack battery cells, and each of the soft-pack battery cells is respectively connected to the first connection terminal group; The guide member is configured to guide the rotation of each of the soft-pack battery cells.

7. The battery assembly structure according to claim 6, wherein: The guide member is provided with a guide surface, and the guide surface is configured to guide the rotation of each of the soft-pack battery cells.

8. The battery assembly structure according to any one of claims 1 to 7, further comprising a housing; and the bracket further comprising a mounting portion; The shell is configured to wrap the soft-pack battery cell group, and the first end of the shell is disposed on the mounting portion of the bracket.

9. A battery module, comprising a soft-pack battery cell group and the battery assembly structure according to any one of claims 1 to 8; the soft-pack battery cell group is connected to the battery assembly structure.

10. The battery module according to claim 9, wherein: The soft-pack battery cell group includes a plurality of soft-pack battery cells, the first end surface of each soft-pack battery cell is provided with an extension plate, and the extension plate is provided with an electrode connecting piece; the electrode connecting piece of each soft-pack battery cell is respectively connected to the first connection terminal group; The soft-pack battery cell group further includes a spacer, which is arranged between the first end surface of the soft-pack battery cell and the electrode connecting sheet.

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