Fixing device for battery cell group in battery

Abstract

The utility model relates to a fixing device for a battery cell group in a battery, and belongs to the technical field of batteries. The battery fixing device comprises a bottom plate, a first baffle and a second baffle, the bottom plate is used for supporting the whole battery, and the first baffle and the second baffle are both of an inverted L-shaped structure and are fixed to the bottom plate to form an enclosure frame structure to fix a battery cell set; meanwhile, the connecting piece is additionally arranged at the contact position of the first baffle and the second baffle, the two baffles are relatively fixed to form the enclosure frame by matching the connecting bolt with the connecting piece, and the structural stability is enhanced. In addition, the first baffle and the second baffle are each provided with at least one bottom plate fixing hole used for fixing the baffles, so that the baffles are fixed relative to the bottom plate. According to the utility model, the production cost is reduced, the cell mounting and dismounting process is convenient, no complex tool is needed, the structure is stable, the cell is not easy to loosen after long-term use, and the performance and safety of the battery are effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a fixing device for internal battery cell assembly. Background Technology

[0002] With the technological development in the battery field, there has been a need for battery cell fixing, which aims to fix the cells stably and efficiently in the battery structure to ensure the performance and safety of the battery, thus leading to a variety of cell fixing methods or devices.

[0003] In related technologies, the cell fixing methods or related devices have many shortcomings:

[0004] For example, some fixed structures have complex designs and numerous parts, which not only increases production costs but also reduces production efficiency.

[0005] For example, the process of installing and removing battery cells is not convenient, requiring complex tools and complicated steps;

[0006] In addition, the existing fixed structure is not very stable during long-term use, and the cells are prone to loosening due to factors such as vibration during battery operation, which affects the performance and safety of the battery. Utility Model Content

[0007] In response to the shortcomings of the existing production technology, the applicant provides a fixing device for the internal cell assembly of a battery, thereby improving battery production efficiency and ensuring the stability and safety of the battery during use.

[0008] The technical solution adopted by this utility model is as follows: A fixing device for battery cell packs, comprising:

[0009] The base plate is used to support the entire battery.

[0010] The first baffle, which has a “┌” shaped structure, is fixed on the base plate, and the contact end between the first baffle and the base plate is provided with a first folded edge. At least one base plate fixing hole is provided on the first folded edge for fixing the first baffle to the base plate.

[0011] The second baffle has a “┘” shaped structure and is fixed to the base plate. The contact end between the second baffle and the base plate is provided with a second folded edge. At least one base plate fixing hole is provided on the second folded edge for fixing the second baffle to the base plate.

[0012] The lengths of the long sides of the first baffle and the second baffle are equal, and the lengths of the wide sides of the first baffle and the second baffle are equal.

[0013] The first baffle and the second baffle are connected by a connector at the contact point and are fixedly connected by the connector to form a frame structure. The battery cell assembly is set and fixed inside the frame structure.

[0014] As a further improvement to the above technical solution:

[0015] Preferably, the connectors on both sides of the first baffle are bent at a 45-degree angle to the first baffle, and the connectors on both sides of the second baffle are bent at a 45-degree angle to the second baffle; the two 45-degree bent connectors abut against each other to achieve a tight fit between the first baffle and the second baffle.

[0016] Preferably, at least one connecting through hole is provided on the connector, and connecting screws are sequentially passed through the connecting through holes on the connectors of the first baffle and the second baffle and locked, so that the first baffle and the second baffle are fixed together and a stable frame structure is formed.

[0017] Preferably, a plurality of connecting through holes are provided on the connector along the vertical direction.

[0018] Preferably, the connector is a plate-shaped, block-shaped, or columnar structure.

[0019] Preferably, the number of base plate fixing holes opened on the first folded edge is three.

[0020] Preferably, the number of base plate fixing holes opened on the second folded edge is three.

[0021] Preferably, the length of the long side of the first baffle and the second baffle matches the total length of the battery cell assembly, and the length of the wide side of the first baffle and the second baffle matches the total width of the battery cell assembly.

[0022] The beneficial effects of this utility model are as follows:

[0023] This utility model has a compact structure, with a frame structure composed of a base plate, a first baffle, and a second baffle. The design is reasonable, and the number of parts is small, which significantly reduces production costs.

[0024] This utility model also has the following advantages:

[0025] (1) This utility model fixes the baffle to the base plate through the folded edge structure, and fixes the two baffles to each other to form a frame through the connector. The assembly process is relatively simple, thereby improving production efficiency. At the same time, the installation and disassembly are convenient, no complicated tools are required, the operation steps are simplified, and efficiency is further improved.

[0026] (2) There is a 45-degree angle between the connector and the baffle in this utility model. When the connectors on the two baffles abut each other, they can fit together easily through the angle, and the first baffle and the second baffle can be tightly closed.

[0027] (3) The length of the long side of the first baffle and the second baffle of this utility model is matched with the total length of the battery cell assembly, and the length of the wide side of the first baffle and the second baffle is matched with the total width of the battery cell assembly; that is to say, the shape and size of the first baffle and the second baffle can be adaptively adjusted according to the shape and size of the battery cell assembly, and the fixing requirements of battery cell assemblies of different shapes and sizes can be adapted by replacing baffles of different sizes. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the fixed assembly of the battery cell assembly in one embodiment of this application.

[0029] Figure 2 for Figure 1 A schematic diagram of the structure after removing the battery pack.

[0030] Figure 3 This is a top view of the structure of the first baffle in one embodiment of this application.

[0031] Figure 4 This is a top view of the structure of the second baffle in one embodiment of this application.

[0032] Figure 5 for Figure 3 The main view.

[0033] The components include: 1. base plate; 2. first baffle; 3. battery cell assembly; 4. second baffle; 5. base plate fixing hole; 6. connecting through hole; 7. connecting bolt; 8. connector. Detailed Implementation

[0034] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0035] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0038] It should be understood that although the terms "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0039] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0040] like Figures 1-5 The accompanying drawing shows a structural diagram of a fixing device for an internal battery cell assembly according to an embodiment of the present invention; for ease of description, the drawing only shows the structure related to the embodiment of the present invention.

[0041] In this embodiment, a fixing device for the internal cell assembly of a battery is provided, including a base plate 1, a first baffle 2, and a second baffle 4.

[0042] In this embodiment, the base plate 1 is used to support the entire battery and ensure the stability of the battery.

[0043] In this embodiment, a first baffle 2 and a second baffle 4 are fixed on the base plate 1;

[0044] like Figure 3 As shown, the first baffle 2 has a “┌” shaped structure, and its contact end with the base plate 1 is provided with a first folded edge. Three base plate fixing holes 5 are provided on the first folded edge. By passing bolts or other fasteners through these base plate fixing holes 5, the first baffle 2 can be firmly fixed to the base plate 1.

[0045] like Figure 4As shown, the second baffle 4 has a “┘” shaped structure, and a second folded edge is provided at the contact end with the base plate 1. Three base plate fixing holes 5 are also provided on the second folded edge, and the second baffle 4 can be fixed to the base plate 1 by bolts or other fasteners.

[0046] In this embodiment, the long side lengths of the first baffle 2 and the second baffle 4 are equal, and the wide side lengths are also equal, so that they can be connected to form a frame structure for setting and fixing the battery cell assembly 3 within the frame.

[0047] Furthermore, in order to ensure a stable connection between the first baffle 2 and the second baffle 4, a connector 8 is added at the contact position between the first baffle 2 and the second baffle 4 in this embodiment.

[0048] like Figure 5 As shown, the connector 8 is further provided with at least one connecting through hole 6. The connecting bolt 7 passes through the connecting through hole 6 on the first baffle 2, the connector 8 and the second baffle 4 in sequence and is locked, so that the first baffle 2 and the second baffle 4 are relatively fixed to each other, forming a stable frame structure.

[0049] Furthermore, in this embodiment, the connector 8 is preferably a plate-like structure, but it can also be a block-like or column-like structure, or other structures that can achieve relative fixation between the first baffle 2 and the second baffle 4. The connector 8 not only enhances the stability of the frame structure, but also makes the connection between the first baffle 2 and the second baffle 4 more robust and reliable.

[0050] In other embodiments, a limiting groove (not shown in the figure) is added to the base plate 1 to limit the position of the battery cell assembly 3. The limiting groove, in conjunction with the above-mentioned frame structure, allows the battery cell assembly 3 to be placed inside the frame structure and fixed, further ensuring the stability and safety of the battery cell assembly 3.

[0051] This utility model has a reasonable structure and simple assembly operation. The position between the baffle structure and the base plate 1 is fixed by the folded edge, and the position between the two baffles is further ensured by the connector 8. It has the advantages of simple structure, low cost, high assembly efficiency, convenient installation and disassembly, and good stability. In addition, the long side and the wide side of the baffle structure of this utility model are matched with the total length and total width of the cell group 3. By replacing the baffles of different sizes, it can adapt to the fixing requirements of cell groups 3 of different shapes and sizes, and provide effective protection for the performance and safety of the battery.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fixing device for cell groups inside a battery, characterized in that, include: The base plate is used to support the entire battery. The first baffle, which has a "┌" shaped structure, is fixed on the base plate, and the contact end between the first baffle and the base plate is provided with a first folded edge. At least one base plate fixing hole is provided on the first folded edge for fixing the first baffle to the base plate. The second baffle has a "┘" shaped structure and is fixed on the base plate. The contact end between the second baffle and the base plate is provided with a second folded edge. At least one base plate fixing hole is provided on the second folded edge for fixing the second baffle to the base plate. The lengths of the long sides of the first baffle and the second baffle are equal, and the lengths of the wide sides of the first baffle and the second baffle are equal. The first baffle and the second baffle are connected by a connector at the contact point and are fixedly connected by the connector to form a frame structure. The battery cell assembly is set and fixed inside the frame structure.

2. The fixing device for the battery internal cell group according to claim 1, characterized by, The connectors located on both sides of the first baffle have a 45-degree bend between them and the first baffle, and the connectors located on both sides of the second baffle have a 45-degree bend between them and the second baffle. The two 45-degree angled connecting pieces abut against each other to achieve a tight fit between the first baffle and the second baffle.

3. The fixture for the battery internal cell group according to claim 2, wherein At least one connecting through hole is provided on the connector. Connecting screws are passed through the connecting through holes on the connectors of the first baffle and the second baffle in sequence and locked to fix the first baffle and the second baffle together and form a stable frame structure.

4. The fixture for the battery internal cell group according to claim 3, wherein Multiple connection through holes are provided on the connector along the vertical direction.

5. The fixture for battery internal cell groups according to claim 3, wherein The connector is a plate-shaped, block-shaped, or columnar structure.

6. The fixture for battery internal cell groups according to claim 1, wherein The number of base plate fixing holes opened on the first folded edge is three.

7. The fixing device for internal cell assembly of a battery according to claim 1, characterized in that, The number of base plate fixing holes opened on the second folded edge is three.

8. The fixture for battery internal cell groups according to claim 1, characterized in that, The length of the long side of the first baffle and the second baffle matches the total length of the battery cell assembly, and the length of the wide side of the first baffle and the second baffle matches the total width of the battery cell assembly.

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