Soft package battery module and battery pack

Abstract

The invention belongs to the technical field of modular batteries, and particularly relates to a soft package battery module and a battery pack, the soft package battery module comprises a bottom plate, two end plates, two side plates, an integrated wiring board, a housing and a plurality of soft package battery cells; a constraint groove is formed among the bottom plate, the two end plates and the two side plates; the soft package battery cells are sequentially arranged in the constraint groove; the integrated wiring board is connected with the two side plates so as to limit the soft package battery cells in the constraint grooves; the housing is stacked on the integrated wiring board, and the housing is connected with the two side plates; according to the invention, the bottom plate, the two end plates, the two side plates, the integrated wiring board and the housing are used for restraining each soft package battery cell, so that the grouped soft package battery cells can be effectively protected, the problem that the soft package battery cells are easy to pierce is solved, the safety of the soft package battery module is improved, each soft package battery cell can be shaped, assembly and wiring are convenient, and the production efficiency is improved. And meanwhile, the integrated wiring board can realize series connection and sampling of multiple strings of soft package battery cells, so that the module structure is simplified, and the risk of module failure is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery packs, and specifically relates to modular batteries, and more particularly to a soft-pack battery module and a battery pack. Background Art

[0002] Soft-pack battery cells are covered by a diaphragm and have no effective protection when grouped. They can be easily punctured, causing the battery to catch fire and thus cause safety accidents.

[0003] In addition, soft-pack batteries are elastic, and stacking multiple soft-pack batteries together cannot ensure that the shape of the module is regular.

[0004] Therefore, there is an urgent need to develop a new soft-pack battery module and battery pack to solve the technical problems of poor protection and easy deformation after soft-pack battery cells are directly grouped.

[0005] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the Invention

[0006] The embodiments of the present disclosure provide at least one soft-pack battery module and a battery pack.

[0007] In the first aspect, an embodiment of the present disclosure provides a soft-pack battery module, which includes: a bottom plate, two end plates, two side plates, an integrated wiring board, a cover and a plurality of soft-pack battery cells; wherein the two end plates are respectively connected to the two short sides of the bottom plate, the two side plates are respectively connected to the two long sides of the bottom plate, and any one of the end plates is connected to the adjacent side plates to form a constraint groove between the bottom plate, the two end plates and the two side plates; each of the soft-pack battery cells is arranged in sequence in the constraint groove, and each of the soft-pack battery cells is electrically connected to the integrated wiring board respectively; the integrated wiring board is connected to the two side plates to limit each of the soft-pack battery cells in the constraint groove; the cover is stacked on the integrated wiring board, and the cover is connected to the two side plates.

[0008] In an optional embodiment, a protective portion is provided on the end plate, and a plurality of reinforcing rib grooves are opened on the protective portion.

[0009] In an optional embodiment, a plurality of limiting openings are provided on the integrated wiring board, and the first electrical connection portion on the soft-pack battery cell passes through the corresponding limiting openings to limit the soft-pack battery cell in the constraint groove.

[0010] In an optional embodiment, spacers are respectively provided on both sides of the limiting opening to separate the two first electrical connection parts.

[0011] In an optional embodiment, a second electrical connection portion is further provided on the integrated wiring board, and each of the first electrical connection portions is electrically connected to the second electrical connection portion.

[0012] In an optional embodiment, a wiring port is provided on the cover, and the wiring port is located at the second electrical connection portion to expose the second electrical connection portion.

[0013] In an optional embodiment, a plurality of indication areas are provided on the cover to indicate corresponding wiring positions.

[0014] In an optional embodiment, 56 of the soft-pack battery cells are provided to form a corresponding battery string.

[0015] In a second aspect, an embodiment of the present disclosure further provides a battery pack, which includes: a plurality of soft-pack battery modules; wherein the soft-pack battery modules are connected in series or in parallel.

[0016] In an optional embodiment, a soft-pack battery module as described above is used.

[0017] The beneficial effect of the present invention is that the present invention constrains each soft-pack battery cell through the bottom plate, two end plates, two side plates, integrated wiring board, and cover shell, which can effectively protect the soft-pack battery cells after grouping, overcome the problem that the soft-pack battery cells are easily punctured, and improve the safety of the soft-pack battery module. It can also shape each soft-pack battery cell to facilitate assembly and wiring. At the same time, the integrated wiring board can realize the series connection and sampling of multiple strings of soft-pack battery cells, simplify the module structure, and reduce the risk of module failure.

[0018] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited herein and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A diagram showing the internal structure of a soft-pack battery module provided in an embodiment of the present disclosure; Figure 2 This is a diagram of the external structure of a soft-pack battery module provided in an embodiment of the present disclosure.

[0022] In the picture: 1. Bottom plate; 11. Constraint groove; 2. End plate; 21. Protective part; 22. Reinforcement rib groove; 3. Side panels; 4. Integrated wiring board; 41. Limiting opening; 42. Spacer; 43. Second electrical connection portion; 5. Cover; 51. Wiring port; 52. Indication area; 6. Soft-pack battery cell; 61. First electrical connection portion. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0024] In this document, when it is mentioned that a first component is located on a second component, this may mean that the first component may be directly formed on the second component, or that a third component may be interposed between the first component and the second component. In addition, in the drawings, the thickness of components may be exaggerated or reduced in order to effectively describe technical content.

[0025] The terminology used herein is for describing particular exemplary configurations only and is not intended to be limiting. As used herein, the singular articles "a," "an," and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0026] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Thus, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Instead, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0028] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0029] like Figures 1 to 2 As shown, at least one embodiment provides a soft-pack battery module, which includes: a bottom plate 1, two end plates 2, two side plates 3, an integrated wiring board 4, a cover 5 and a plurality of soft-pack battery cells 6; wherein the two end plates 2 are respectively connected to the two short sides of the bottom plate 1, the two side plates 3 are respectively connected to the two long sides of the bottom plate 1, and any end plate 2 is connected to the adjacent side plates 3 to form a constraint groove 11 between the bottom plate 1, the two end plates 2 and the two side plates 3; each of the soft-pack battery cells 6 is arranged in sequence in the constraint groove 11, and each of the soft-pack battery cells 6 is electrically connected to the integrated wiring board 4 respectively; the integrated wiring board 4 is connected to the two side plates 3 to limit each of the soft-pack battery cells 6 in the constraint groove 11; the cover 5 is stacked on the integrated wiring board 4, and the cover 5 is connected to the two side plates 3.

[0030] In at least one embodiment, the soft-pack battery cells 6 are constrained by the bottom plate 1, the two end plates 2, the two side plates 3, the integrated terminal board 4, and the cover 5, so that the grouped soft-pack battery cells 6 can be effectively protected, the problem of the soft-pack battery cells 6 being easily punctured can be overcome, the safety of the soft-pack battery module can be improved, and each soft-pack battery cell 6 can be shaped to facilitate assembly and wiring. At the same time, the integrated terminal board 4 can realize the series connection and sampling of multiple strings of soft-pack battery cells 6, simplify the module structure, and reduce the risk of module failure.

[0031] In at least one embodiment, see Figure 1 A protective portion 21 is provided on the end plate 2 , and a plurality of reinforcing rib grooves 22 are opened on the protective portion 21 .

[0032] Specifically, the end plate 2 protects the soft-pack battery cell 6 in the restraint groove 11 through the protective portion 21. The use of the reinforcing rib groove 22 can improve the structural strength of the end plate 2 itself, and at the same time play a role in shock absorption and impact resistance.

[0033] In at least one embodiment, see Figure 1 The integrated wiring board 4 is provided with a plurality of limiting openings 41 , and the first electrical connection portion 61 on the soft-pack battery cell 6 passes through the corresponding limiting openings 41 to limit the soft-pack battery cell 6 in the constraint groove 11 .

[0034] Specifically, the function of the limiting opening 41 is to limit the first electrical connection portion 61 on each soft-pack battery cell 6 . On the one hand, it can limit the position of the soft-pack battery cell 6 , and on the other hand, it is convenient to connect the first electrical connection portion 61 .

[0035] In at least one embodiment, see Figure 1 , spacers 42 are respectively provided on both sides of the limiting opening 41 to separate the two first electrical connection parts 61 .

[0036] Specifically, the two first electrical connection parts 61 are separated by the spacer 42, which can avoid interference between the first electrical connection parts 61. In addition, the voltage and current at the first electrical connection parts 61 are relatively large, and the separation can also improve safety.

[0037] Specifically, the surface of the spacer 42 is coated with an insulating layer.

[0038] In at least one embodiment, see Figure 1 The integrated wiring board 4 is further provided with a second electrical connection portion 43 , and each of the first electrical connection portions 61 is electrically connected to the second electrical connection portion 43 .

[0039] Specifically, the second electrical connection portion 43 may be an interface, etc., to achieve signal and energy transmission between the integrated wiring board 4 and external devices.

[0040] In at least one embodiment, see Figure 2 The cover 5 is provided with a wiring port 51 , and the wiring port 51 is located at the second electrical connection portion 43 to expose the second electrical connection portion 43 .

[0041] Specifically, a wiring port 51 is reserved on the cover 5 to facilitate installation and wiring.

[0042] In at least one embodiment, see Figure 2 The cover 5 is provided with a plurality of indicating areas 52 to indicate corresponding wiring positions.

[0043] Specifically, the indicator area 52 can mark the positive pole, negative pole, etc. to facilitate correct wiring.

[0044] In at least one embodiment, 56 of the soft-pack battery cells 6 are provided to form a corresponding battery string.

[0045] Based on the same technical concept, at least one embodiment further provides a battery pack, which includes: a plurality of soft-pack battery modules; wherein the soft-pack battery modules are connected in series or in parallel.

[0046] In at least one embodiment, a soft-pack battery module as described above is used.

[0047] To sum up, the present invention constrains each soft-pack battery cell through the bottom plate, two end plates, two side plates, integrated wiring board, and cover shell, which can effectively protect the grouped soft-pack battery cells, overcome the problem that the soft-pack battery cells are easily punctured, and improve the safety of the soft-pack battery module. It can also shape each soft-pack battery cell to facilitate assembly and wiring. At the same time, the integrated wiring board can realize the series connection and sampling of multiple strings of soft-pack battery cells, simplify the module structure, and reduce the risk of module failure.

[0048] In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0049] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used herein unless expressly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0050] Spatially relative terms, such as "inside," "outside," "below," "beneath," "down," "above," "on," etc., may be used herein to describe the relationship of one element or feature to another element or feature as illustrated in the figures. In addition to the orientations depicted in the figures, spatially relative terms may be intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as being "below" or "below" other elements or features will be oriented to be "above" the other elements or features. Thus, the example term "below" may encompass both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0051] In the above discussion, unless otherwise indicated, the terms "about," "approximately," "substantially," etc., when used to describe a numerical value, mean a variation of + / - 10% of the value.

[0052] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A soft pack battery module, characterized in that: include: A bottom plate (1), two end plates (2), two side plates (3), an integrated wiring board (4), a cover (5) and a plurality of soft-pack battery cells (6); wherein The two end plates (2) are respectively connected to the two short sides of the bottom plate (1), the two side plates (3) are respectively connected to the two long sides of the bottom plate (1), and any one of the end plates (2) is connected to the adjacent side plates (3) to form a restraining groove (11) between the bottom plate (1), the two end plates (2), and the two side plates (3); The soft-packed battery cells (6) are sequentially arranged in the restraint groove (11), and the soft-packed battery cells (6) are electrically connected to the integrated wiring board (4). The integrated wiring board (4) is connected to the two side boards (3) to limit each of the soft-pack battery cells (6) within the constraint groove (11); The cover shell (5) is stacked on the integrated wiring board (4), and the cover shell (5) is connected to the two side plates (3).

2. The soft pack battery module according to claim 1, wherein: A protective portion (21) is provided on the end plate (2), and a plurality of reinforcing rib grooves (22) are provided on the protective portion (21).

3. The soft pack battery module according to claim 1, wherein: The integrated wiring board (4) is provided with a plurality of limiting openings (41), and the first electrical connection portion (61) on the soft-pack battery cell (6) passes through the corresponding limiting openings (41) to limit the soft-pack battery cell (6) in the constraint groove (11).

4. The soft pack battery module according to claim 3, wherein: Spacers (42) are respectively provided on both sides of the limiting opening (41) to separate the two first electrical connection parts (61).

5. The soft pack battery module according to claim 3, wherein: A second electrical connection portion (43) is also provided on the integrated wiring board (4), and each of the first electrical connection portions (61) is electrically connected to the second electrical connection portion (43).

6. The soft pack battery module according to claim 5, wherein: A wiring port (51) is provided on the cover shell (5), and the wiring port (51) is located at the second electrical connection portion (43) to expose the second electrical connection portion (43).

7. The soft pack battery module according to claim 1, wherein: A plurality of indicating areas (52) are provided on the cover (5) to indicate corresponding wiring positions.

8. The soft pack battery module according to claim 1, wherein: 56 of the soft-pack battery cells (6) are provided to form a corresponding battery string.

9. A battery pack, characterized in that: include: Several soft-pack battery modules; in The soft-pack battery modules are connected in series or in parallel.

10. The battery pack according to claim 9, wherein: A soft-pack battery module according to any one of claims 1 to 8 is used.

Images