Patent Application
20240113377
This application claims the priority benefit of China application serial no. 202222623208.1, filed on Sep. 30, 2022. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.
The disclosure relates to the technical field of batteries, and in particular, relates to a battery module and a battery pack.
At present, with the development of the power battery industry, the fixing of a battery module in a battery pack is achieved by mounting lifting lugs on the side plates and connecting the lifting lugs to the mounting beam. However, the above mounting and arrangement may lead to the following problems. First, the lifting lugs are arranged on the reinforcing ribs of the side plates, and the arrangement of the reinforcing ribs results in the absence of gap between the side plates and the mounting beam. When the battery module is to be disassembled from the battery pack, the disassembly tool cannot be inserted into the battery module from the side plates to lift up the battery module. Second, a liquid cooling plate is fixedly connected to the bottom of the end plate, but in order to avoid damage to the liquid cooling plate, it is not easy for the disassembly tool to lift up the battery module from the bottom of the end plate. The above brings about the problem that the battery module is difficult to be disassembled.
The disclosure provides a battery module and a battery pack.
The disclosure provides a battery module including a casing and a cell assembly disposed in the casing. The casing includes two side plates opposite to each other. Each of the side plates includes a side plate body, a protruding rib portion, and lifting lugs. The protruding rib portion is disposed on an outer side surface of the side plate body and extends in a length direction of the side plate body. The protruding rib portion includes a protruding rib and a notch, and the protruding rib and the notch are adjacent to each other in an extending direction of the protruding rib portion. The notch is provided on at least one end of the protruding rib portion in the extending direction. The lifting lugs are disposed on the protruding rib at intervals in the extending direction of the protruding rib portion.
In the disclosure, the protruding rib portion is provided with the notch. With the presence of the notch, when the battery module is mounted on a mounting beam in a battery pack, a gap is provided between the side and the mounting beam at the position of the notch. In this way, when the battery module is required to be disassembled, a disassembly tool may be inserted into the bottom portion of the battery module to lift up the battery module from the notch.
The disclosure further provides a battery pack including the abovementioned battery module.
For a better understanding of the disclosure, reference may be made to exemplary embodiments shown in the following drawings. The components in the drawings are not necessarily to scale and related elements may be omitted, or in some instances proportions may have been exaggerated, so as to emphasize and clearly illustrate the features described herein. In addition, related elements or components can be variously arranged, as known in the art. Further, in the drawings, like reference numerals designate same or like parts throughout the several views.
The technical solutions in the exemplary embodiments of the disclosure will be described clearly and explicitly in conjunction with the drawings in the exemplary embodiments of the disclosure. The description proposed herein is just the exemplary embodiments for the purpose of illustrations only, not intended to limit the scope of the disclosure, so it should be understood that and various modifications and variations could be made thereto without departing from the scope of the disclosure.
In the description of the present disclosure, unless otherwise specifically defined and limited, the terms “first”, “second” and the like are only used for illustrative purposes and are not to be construed as expressing or implying a relative importance. The term “plurality” is two or more. The term “and/or” includes any and all combinations of one or more of the associated listed items.
In particular, a reference to “the” object or “a” and “an” object is intended to denote also one of a possible plurality of such objects. Unless otherwise defined or described, the terms “connect”, “fix” should be broadly interpreted, for example, the term “connect” can be “fixedly connect”, “detachably connect”, “integrally connect”, “electrically connect” or “signal connect”. The term “connect” also can be “directly connect” or “indirectly connect via a medium”. For the persons skilled in the art, the specific meanings of the abovementioned terms in the present disclosure can be understood according to the specific situation.
Further, in the description of the present disclosure, it should be understood that spatially relative terms, such as “above”, “below” “inside”, “outside” and the like, are described based on orientations illustrated in the figures, but are not intended to limit the exemplary embodiments of the present disclosure.
In the context, it should also be understood that when an element or features is provided “outside” or “inside” of another element(s), it can be directly provided “outside” or “inside” of the other element, or be indirectly provided “outside” or “inside” of the another element(s) by an intermediate element.
The disclosure provides a battery module and a battery pack to solve the problems that occur when the battery module is to be disassembled from the battery pack.
With reference to
According to the design of a conventional battery module, the casing 1 provided by this embodiment has a cuboid structure, but in actual manufacturing applications, the shape of the casing 1 may be adjusted according to needs. The casing 1 includes two side plates 11 and two end plates 12. With reference to the directions shown in
In addition, this embodiment further discloses a battery pack including the abovementioned battery module and a mounting beam 5. The battery module is mounted on the mounting beam 5. In a conventional battery pack, the end plates 12 are provided with hoisting structures to hoist the battery module on the mounting beam 5. A surface of a single cell in the cell assembly 2 with the largest surface area is perpendicular to the two side plates 11. When the battery pack is pressed and collided, the side plates 11 are easily squeezed and deformed to squeeze the single cell, resulting in thermal runaway in the single cell. Therefore, this embodiment provides a side plate structure in which the hoisting structures are arranged on the side plates 11, and the strength of the side plates 11 is enhanced, so as to improve the ability of the side plates 11 to resist pressing and deformation, and the safe use of the battery module and the battery pack is thereby ensured.
To be specific, with reference to
With reference to
In order to make full use of the space in the battery pack, the two battery modules are compactly hoisted, that is, the two side plates 11 on the left and right sides of the mounting beam 5 are compactly adjacent to each other. Therefore, in the battery pack, the mounting beam 5 is arranged below the lifting lugs 113, and a vertical projection of the mounting beam 5 partially overlaps vertical projections of the protruding rib portions on the two side plates 11 on both sides of the mounting beam 5. This leads to a new problem. When the battery module is to be disassembled from the battery pack, the disassembly tool needs to be inserted into the bottom portion of the battery module to lift up the battery module. The bottom portions of the end plates 12 are fixed to the liquid cooling plate 3, so if the disassembly tool is inserted into the bottom portion of the battery module from the sides of the end plates 12, the liquid cooling plate 3 may be damaged easily. Further, the vertical projections of the protruding rib portions of the side plates 11 partially overlap the vertical projection of the mounting beam 5, so the disassembly tool cannot be inserted into the battery module from the sides of the side plates 11 either.
In order to solve the problem of disassembly, with reference to
Besides, in order to further improve the strength of the side plates 11, a plurality of protruding rib portions may be provided, and the plurality of protruding rib portions are arranged at intervals in the height direction of the side plate body 111. The vertical projection of the protruding rib 112 partially overlaps the mounting beam 5, and the distance between two adjacent protruding rib portions is generally less than the height of the mounting beam 5. Therefore, the mounting beam 5 is generally provided at the bottom portion of the lowermost protruding rib portion. In order to ensure that the mounting beam 5 is firmly assembled to the lifting lugs 113, the lifting lugs 113 are arranged on the lowermost protruding rib portion. If the lifting lugs 113 are provided on the upper protruding rib portion, the distance between the mounting beam 5 and the lifting lugs 113 is long, and it thus cannot be guaranteed that the two can be locked by bolts. Further, in order to allow the disassembly tool to be smoothly inserted, the positions of the notches 114 of the protruding rib portions are required to arranged to correspond to one another one-to-one.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. The disclosure is intended to cover any variations, uses or adaptations of the disclosure. These variations, uses, or adaptations follow the general principles of the disclosure and include common general knowledge or conventional technical means in the art that are not disclosed in the present disclosure. The specification and embodiments are illustrative, and the real scope and spirit of the present disclosure is defined by the appended claims.
It should be understood that the disclosure is not limited to the precise structures that have been described above and shown in the drawings, and various modifications and variations can be made without departing from the scope thereof. The scope of the disclosure is limited only by the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202222623208.1 | Sep 2022 | CN | national |
