CN221327980U - Soft package flexible module - Google Patents

Abstract

The application relates to the technical field of soft package modules, in particular to a soft package flexible module which comprises at least one module, wherein any module comprises a module assembly and two anti-deformation plates, the module assembly comprises at least two modules, and the modules are stacked into groups along at least one of a first direction, a second direction and a third direction; any module comprises a plurality of battery cells which are sequentially stacked together, and the first direction is the stacking direction of the battery cells; along a first direction, two anti-deformation plates are respectively arranged at two ends of the module assembly. Therefore, at least two modules are assembled into the modules in the scheme, and then the number of the modules is increased or reduced to adapt to battery packs with different sizes, so that the modules do not need to be designed and manufactured again, and the cost is greatly reduced. In addition, the module does not include structural members such as end plates and side plates, so that the assembly complexity can be effectively reduced, the grouping cost is reduced, the grouping efficiency is improved, in addition, the upper cover and the lower cover are reserved, and the expansion deformation of the battery cells can be resisted.

Description

Soft package flexible module

Technical Field

The application relates to the technical field of soft package modules, in particular to a soft package flexible module.

Background

At present, along with the updating iteration of the battery pack, the number of battery pack parts can be greatly reduced, a large module scheme for improving the energy density of the battery pack becomes mainstream, the current soft pack large module is directly stacked by the battery cells into groups, and the current battery cells are generally of a certain size, so that the large module after the grouping cannot be adapted to all battery packs, namely the shell.

Disclosure of utility model

The application aims to provide a soft package flexible module, which solves the technical problem that a large module formed by grouping battery cells cannot be matched with all battery packages, namely shells, in the prior art to a certain extent.

The application provides a soft package flexible module, comprising: at least one module, wherein any module comprises a module assembly and two anti-deformation plates; wherein the module assembly comprises at least two modules, and at least two modules are stacked in groups along at least one of a first direction, a second direction and a third direction;

Any module comprises a plurality of battery cells which are sequentially stacked together, and the first direction is the stacking direction of the battery cells; along the first direction, two anti-deformation plates are respectively arranged at two ends of the module assembly.

In the above technical solution, further, the first direction is a thickness direction of the battery cell, the second direction is a length direction of the battery cell, and the third direction is a width direction of the battery cell.

In any of the above technical solutions, further, an insulating partition is disposed between two adjacent modules along the third direction.

In any of the above technical solutions, further, the insulating spacer is connected to the adjacent module by means of gluing.

In any of the above technical solutions, further, any one of the modules further includes a tab support and a bus bar, at least one end of each of the plurality of sequentially stacked battery cells along the length direction thereof is provided with the tab support, and the bus bar is disposed on the tab support; adjacent electric cores are electrically connected through the bus bars.

In any of the above technical solutions, further, along the third direction, two opposite sides of the module assembly are respectively provided with a side plate, and the side plates are connected with the deformation-preventing plate.

In any of the above technical solutions, further, the side plate and the deformation-preventing plate are detachably connected through a fastening member.

In any of the above technical solutions, further, the number of the module modules is plural, and only one side plate is disposed between any two adjacent module modules when stacking along at least the third direction.

In any of the above technical solutions, further, the number of the module modules is plural, and when the module modules are stacked at least along the first direction, the module modules are fixedly connected by a binding band.

In any of the above technical solutions, further, only one deformation preventing plate is disposed between any two adjacent module modules.

In any of the above technical solutions, further, a plurality of cells stacked together in sequence in any of the modules are fixed via an adhesive tape.

Compared with the prior art, the application has the beneficial effects that:

According to the scheme, at least two modules are assembled into the module, and then the number of the modules is increased or reduced to adapt to battery packs with different sizes, so that the modules do not need to be designed and manufactured again, and the cost is greatly reduced.

In addition, each module does not comprise structural members such as end plates and side plates, so that the assembly complexity can be effectively reduced, the module assembly cost is reduced, the assembly efficiency is greatly improved, in addition, the upper cover and the lower cover are reserved, and the module assembly structure is corresponding to the large-surface side of the battery cell and is beneficial to resisting the expansion deformation of the battery cell.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a module according to an embodiment of the present application;

FIG. 2 is a schematic diagram of another structure of a module according to an embodiment of the application;

FIG. 3 is a schematic diagram of a module according to an embodiment of the application;

FIG. 4 is a schematic diagram of a module according to an embodiment of the application;

fig. 5 is a schematic structural diagram of a flexible module with a soft package according to a first embodiment of the present application;

FIG. 6 is an enlarged schematic view of FIG. 5 at A;

Fig. 7 is another schematic structural diagram of a flexible module with a soft package according to a first embodiment of the present application;

fig. 8 is a schematic structural diagram of a flexible soft package module according to a second embodiment of the present application;

fig. 9 is another schematic structural diagram of a flexible module with a soft package according to a second embodiment of the present application.

Reference numerals:

1-module, 11-module, 12-first deformation preventing plate, 121-first boss, 13-second deformation preventing plate, 14-side plate, 15-insulating partition, 16-tab support, 17-busbar, 18-adhesive tape, 2-strap, a-first direction, b-second direction, c-third direction.

Detailed Description

The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown.

The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application.

All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

A soft pack flexible module according to some embodiments of the present application is described below with reference to fig. 1 to 9.

Example 1

Referring to fig. 1 to 7, an embodiment of the present application provides a flexible soft package module, which includes a plurality of module modules 1, wherein any module 1 includes a module assembly and two deformation preventing plates; wherein, any module 11 comprises a plurality of cells sequentially stacked together along a first direction a to form a cell assembly;

the module assembly comprises four modules 11, and the four modules 11 are stacked into groups along a second direction b and a third direction c, wherein the second direction b is the length direction of the battery cell, and the third direction c is the width direction of the battery cell;

Further, preferably, two deformation preventing plates are respectively provided at both ends of the module assembly along the first direction a, and for convenience of distinction, the two deformation preventing plates are respectively named as a first deformation preventing plate 12 and a second deformation preventing plate 13, that is, the first deformation preventing plate 12 is used as an upper cover, the second deformation preventing plate 13 is used as a lower cover, and is respectively installed at the top and bottom of the module assembly, and preferably, the upper cover can be used for installing the battery management module, that is, the upper cover provides an installation position for installing the battery management module;

The plurality of module modules 1 are stacked in groups along the aforementioned third direction c.

Based on the above-described structure, at least two modules 11 are assembled into modules in the scheme, so that the number of modules is increased or reduced to adapt to battery packs with different sizes, and the modules 11 do not need to be designed and manufactured again, so that the cost is greatly reduced.

In addition, each module 11 does not comprise structural members such as end plates and side plates, so that the assembly complexity can be effectively reduced, the assembly cost of the modules 11 is reduced, the assembly efficiency is greatly improved, in addition, the upper cover and the lower cover are reserved, and the module is corresponding to the large-surface side of the battery cell, so that the module is beneficial to resisting the expansion deformation of the battery cell.

It should be noted that: the plurality of modules 11 in each module 1 are not limited to being grouped along the second direction b and the third direction c, but may be grouped along only the second direction b, or along only the third direction c.

In addition, the plurality of module modules 1 are not limited to be stacked in the third direction c, but may be stacked in the second direction b only, or stacked in the first direction a, the second direction b and the third direction c at the same time, which is specifically selected according to practical needs.

Further, it is preferable that the number of the modules 11 in each module 1 is an even number, and not limited to four in the present embodiment, but may be two, six, eight, etc., of course, not limited to the above, and the number of the modules 11 in each module 1 may even be a counted number, for example, three, five, seven, etc., specifically selected according to actual needs.

In this embodiment, preferably, as shown in fig. 2 and 3, any module 1 further includes two side plates 14, wherein, along the third direction c, the two side plates 14 are respectively disposed on opposite sides of the module assembly;

The two side plates 14 are connected to the first and second deformation preventing plates 12 and 13, respectively.

According to the above-described structure, the two side plates 14 are used for bearing force, so as to avoid pressing the battery cell, and are assembled with the upper cover and the lower cover, thereby increasing the overall strength.

Further, it is preferable that the method, preferably,

In this embodiment, preferably, as shown in fig. 2 and 3, two side plates 14 are detachably connected with the adjacent first deformation preventing plate 12 by a first fastening member such as a screw or bolt.

As can be seen from the above-described structure, the two side plates 14 are detachably connected to the adjacent first deformation-preventing plate 12, which is convenient for assembly and maintenance.

Of course, the connection between the two side plates 14 and the adjacent first deformation preventing plate 12 is not limited to the above, and may be welded.

In this embodiment, preferably, as shown in fig. 4, two side plates 14 are detachably connected with the adjacent second deformation preventing plate 13 by a second fastening member such as a screw or a bolt.

According to the above-described structure, the two side plates 14 and the adjacent second deformation-preventing plate 13 are detachably connected, so that the assembly and maintenance are convenient.

Of course, the connection between the two side plates 14 and the adjacent second deformation preventing plate 13 is not limited to the above, and may be welded.

In this embodiment, preferably, as shown in fig. 6, one of any adjacent two first deformation preventing plates 12 is formed with a first protrusion 121, the other is formed with a first groove portion, and the first protrusion 121 is inserted into the first groove portion.

According to the above-described structure, the first protrusion 121 and the first groove are engaged with each other, so that the two adjacent first deformation preventing plates 12 are quickly positioned during assembly, and the assembly speed is increased while the two first deformation preventing plates are engaged with each other more tightly.

Further, it is preferable that the number of the first protruding portions 121 and the number of the first recessed portions are plural and correspond to each other one by one.

Further, preferably, for the middle side plate 14, two adjacent first deformation preventing plates 12 are each connected to the middle side plate 14, by fastening members such as screws or bolts; adjacent two second deformation-preventing plates 13 are each connected to the intermediate side plate 14, also by fastening means such as screws or bolts.

In this embodiment, preferably, one of any adjacent two second deformation preventing plates 13 is formed with a second convex portion, the other is formed with a second concave portion, and the second convex portion is inserted into the second concave portion.

According to the above-described structure, the second protrusion portion and the second groove portion are engaged with each other, so that the two adjacent second deformation-preventing plates 13 are rapidly positioned during assembly, and the assembly speed is increased while the two second deformation-preventing plates are engaged with each other more tightly.

Further, preferably, the number of the second protruding portions and the number of the second recessed portions are plural and correspond to each other one by one.

In this embodiment, preferably, as shown in fig. 1, two adjacent modules 11 are fixedly connected along the second direction b by using an adhesive tape 18, so that the two modules 11 are fixed together, and the overall strength is improved.

In this embodiment, preferably, as shown in fig. 1, an insulating spacer 15 is disposed between two adjacent modules 11 along the third direction c, and serves as an insulating shield.

Further, preferably, the insulating spacers 15 are connected to the adjacent modules 11 by means of gluing, which serves to fix the insulating spacers 15 and which is simpler in terms of the gluing process.

In this embodiment, preferably, as shown in fig. 1, any module 11 further includes a tab support 16 and a bus bar 17, one end of the battery cell assembly along the length direction thereof is provided with the tab support 16, and the other end is provided with no tab, that is, belongs to a structure of a single-side tab, the bus bar 17 is arranged on the tab support 16, and the tab support 16 plays a role of supporting the tab and the bus bar 17;

Adjacent cells are electrically connected by a bus bar 17, and the cells in the whole module 11 can be connected in series or in parallel according to actual selection.

It should be noted that: the tabs of the two modules 11 arranged along the second direction b are disposed away from each other.

Further, preferably, the number of the bus bars 17 is plural, and some of the bus bars 17 are square sheets, and some of the bus bars 17 include two square metal sheets and a U-shaped reinforcing beam connected between the two square metal sheets, so that the bus bars 17 are higher in strength and not easy to damage, and it is required to be described that: the tabs are required to be bent after being sequentially penetrated out of the tab bracket 16 and the bus bar 17, and only the non-bent tabs are shown in fig. 1.

Example two

Referring to fig. 3, the flexible module for soft package in this embodiment is an improvement based on the first embodiment, and the technical content disclosed in the first embodiment is not repeated, and the disclosure of the first embodiment also belongs to the disclosure of this embodiment.

In this embodiment, preferably, as shown in fig. 8 and 9, the embodiment of the present application provides a soft package flexible module including a plurality of module modules 1, and any one module 1 includes two modules 11 and two deformation-preventing plates, which are named as a first deformation-preventing plate 12 and a second deformation-preventing plate 13, respectively, in order to facilitate distinguishing the two deformation-preventing plates; wherein, any module 11 comprises a plurality of battery cells which are sequentially stacked along a first direction a;

Two modules 11 are stacked in groups along a first direction a to form a module assembly, and a first deformation preventing plate 12 and a second deformation preventing plate 13 are respectively arranged at two sides of the module assembly along the first direction a, that is, at this time, the first deformation preventing plate 12 is taken as a left side plate 14, and the second deformation preventing plate 13 is taken as a right side plate 14 and respectively arranged at two side parts of the module assembly;

the number of module modules 1 is plural and stacked in groups along the first direction a.

Further, preferably, the soft package flexible module further includes a strap 2, and the first deformation-preventing plate 12 and the second deformation-preventing plate 13 are fixedly connected with the module 1 through the strap 2.

According to the above-described structure, when a plurality of module modules 1 are grouped along the first direction a, two side plates 14 in the first embodiment can be omitted, and the first deformation preventing plate 12 and the second deformation preventing plate 13 are used as side plates, so that the function of bearing force is achieved, and the first deformation preventing plate 12 and the second deformation preventing plate 13 correspond to the large surface side of the battery cell, so that the function of preventing the expansion deformation of the battery cell is achieved, and the battery cell is safer and more reliable.

It can be seen that the first deformation preventing plate 12 and the second deformation preventing plate 13 have guaranteed the strength requirement, so that only the binding belt 2 is needed to be arranged, and the plurality of module modules 1 are bound together, so that the grouping cost is further saved.

In this embodiment, preferably, as shown in fig. 8, any module 11 further includes a tab support 16 and a busbar 17, and both ends of the cell assembly along the length direction thereof are provided with the tab support 16, that is, the structure of the two-sided tab, which is, of course, not limited thereto, but a structure of the one-sided tab may be adopted;

The busbar 17 is arranged on the lug support 16, and the lug support 16 plays a role in supporting the lug and the busbar 17; adjacent cells are electrically connected by bus bars 17, and the cells in the entire module 11 may be connected in series or in parallel, depending on the actual choice, which is part of the prior art and will not be described in detail here.

It should be noted that: the plurality of module modules 1 are not limited to being stacked in groups along the first direction a, but may be stacked in groups along the first direction a and at least one of the second direction b and the third direction c at the same time, and specifically selected according to actual needs.

In addition, the number of the module modules 1 is not limited to a plurality, and may be one, and may be specifically selected according to actual needs. In addition, the number of modules 11 in any module 1 is not limited to two, and may be more than two, for example, three, four, five, or the like.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (11)

1. A flexible module for a flexible package, comprising: at least one module, wherein any module comprises a module assembly and two anti-deformation plates; wherein the module assembly comprises at least two modules, and at least two modules are stacked in groups along at least one of a first direction, a second direction and a third direction;

Any module comprises a plurality of battery cells which are sequentially stacked together, and the first direction is the stacking direction of the battery cells; along the first direction, two anti-deformation plates are respectively arranged at two ends of the module assembly.

2. The flexible module of claim 1, wherein the first direction is a thickness direction of the battery cell, the second direction is a length direction of the battery cell, and the third direction is a width direction of the battery cell.

3. A flexible module according to claim 2, wherein an insulating barrier is provided between two adjacent modules along the third direction.

4. A flexible module according to claim 3, wherein the insulating barrier is connected to adjacent modules by means of gluing.

5. The flexible module according to claim 2, wherein any one of the modules further comprises a tab holder and a bus bar, the tab holder being provided at one end of each of a plurality of sequentially stacked battery cells in a length direction thereof, the bus bar being provided at the tab holder; adjacent electric cores are electrically connected through the bus bars.

6. The flexible module according to any one of claims 2 to 5, wherein, along the third direction, opposite sides of the module assembly are provided with side plates, respectively, and the side plates are connected with the deformation preventing plate.

7. The flexible module of claim 6, wherein the side panel is detachably connected to the deformation preventing plate by a fastening member.

8. The flexible module of claim 6, wherein the number of module modules is plural, and only one side plate is disposed between any adjacent two module modules when stacked at least along the third direction.

9. The flexible module of any one of claims 2 to 5, wherein the number of module modules is plural and the plurality of module modules are fixedly connected by a strap when stacked at least along the first direction.

10. The flexible module of claim 9, wherein only one of said deformation preventing plates is disposed between any two adjacent module modules.

11. The flexible module of claim 1, wherein a plurality of cells in any one of the modules stacked together in sequence are secured via tape.