Support box body structure for battery pack

Abstract

The utility model discloses a support box body structure for a battery pack, which comprises an upper cover, a CCS and a support box body, and a plurality of box body buckling positions are symmetrically arranged on the support box body; a plurality of lower inner inverted buckles and upper outer inverted buckles are symmetrically formed on the CCS; a plurality of upper cover buckling positions are symmetrically arranged on the upper cover; the CCS is fixedly assembled with the support box body through the cooperation of the lower inner inverted buckle and the box body buckling position, and the installation of the upper cover is achieved through the buckling of the upper outer inverted buckle and the upper cover buckling position. The CCS is reserved with a welding position of the battery core bar sheet, and a supporting convex piece is formed at the welding position to limit and fix the battery core bar sheet; heat insulation clamping plates are arranged on the box walls of the two sides of the support box body, and clamping grooves are formed in the heat insulation clamping plates at equal intervals so that the cell heat insulation auxiliary mounting plates can be mounted at equal intervals in a clamped and inserted mode. According to the utility model, rapid and stable assembly is realized based on the matching of the inverted buckle and the buckle position, so that the assembly does not need a tool, the process is simplified, the production efficiency is improved, and the safety is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of battery pack technology, and in particular relates to a support box structure for a battery pack. Background Technology

[0002] In related technologies, during the assembly process of battery modules, the cells are stacked together after being covered with foam or glue. After stacking, the battery modules are prone to being uneven or skewed in the width direction, resulting in out-of-tolerance width dimensions. This can also lead to uneven spacing between the cells. Therefore, cell brackets are usually needed to fix the cells.

[0003] Existing battery cell support structures are complex, making production difficult and subsequent assembly challenging. They also hinder quick replacement when individual cells need to be replaced. Therefore, it is necessary to develop a battery pack housing structure that is reasonable and simple, meets the design requirements for stability and safety, incorporates support functions, provides quick and easy positioning and installation, and is easy to assemble and disassemble, thus providing the market with more options. Utility Model Content

[0004] This invention provides a support box structure for a battery pack to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A bracket housing structure for a battery pack includes a top cover, a CCS, and a bracket housing, characterized in that a plurality of housing fasteners are symmetrically provided on the bracket housing;

[0007] The CCS is symmetrically formed with multiple lower inner undercuts and upper outer undercuts;

[0008] The upper cover has multiple cover fasteners symmetrically provided;

[0009] The CCS is fixedly assembled with the bracket housing by the cooperation of its lower inner buckle and the housing buckle, while the installation of the top cover is achieved by the engagement of the upper outer buckle and the top cover buckle.

[0010] The CCS has reserved welding positions for the battery cell, and a support protrusion is formed at the welding position to limit and fix the battery cell.

[0011] Both sides of the bracket box are equipped with heat insulation plates, and the heat insulation plates are provided with slots at equal intervals. The slots are used for the installation and fixation of the heat insulation auxiliary plate of the power supply core.

[0012] Preferably, each of the battery cell heat insulation auxiliary plates has a longitudinal slot.

[0013] Preferably, the longitudinal slot is used for the longitudinal battery cell heat insulation auxiliary plate to be inserted and fixed.

[0014] Preferably, the CCS is designed and formed with limiting assembly holes according to the shape of the positive and negative electrodes of the battery cell, so as to fix the battery cell in the designed position before welding.

[0015] Compared with the prior art, the advantages of this utility model are as follows: The top cover, CCS and bracket housing of this utility model can be quickly and stably assembled with each other based on the cooperation of the snap-fit ​​and the snap-fit. Moreover, the snap-fit ​​assembly does not require tooling, which simplifies the assembly process and improves production efficiency. With reasonable snap-fit ​​number and design position, its stability performance meets the usage standards. More importantly, this design facilitates future assembly, disassembly and maintenance. In addition, this utility model is equipped with a cell heat insulation auxiliary plate that can be used for partitioned positioning assembly and heat insulation and fire prevention, so as to improve the safety and practicality of this utility model. Attached Figure Description

[0016] Figure 1 This is an exploded view of the present invention.

[0017] Figure 2 This is a schematic diagram of the structure of the bracket box of this utility model.

[0018] Figure 3 This is an exploded view of the support box of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the battery cell heat insulation auxiliary plate of this utility model.

[0020] Figure 5 and Figure 6 All of these are enlarged views of the partial structure of the CCS of this utility model. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 6 As shown, this utility model is a support box structure for a battery pack, mainly composed of a top cover (1), a CCS (2), and a support box (3). The significant structural designs of the three components are as follows:

[0023] The bracket box (3) is symmetrically provided with multiple box fasteners (30);

[0024] The CCS (2) is symmetrically formed with multiple lower inner undercuts (20) and upper outer undercuts (21);

[0025] The upper cover (1) is symmetrically provided with multiple upper cover fasteners (10).

[0026] According to the above structure, the CCS (2) of this utility model can be fixedly assembled with the bracket box (3) by the cooperation of its lower inner buckle (20) and the box fastener (30). The installation of the upper cover (1) is achieved by the fastening of the upper outer buckle (21) and the upper cover fastener (10). This structural design allows the components to be quickly and stably assembled based on the cooperation of the buckle and the fastener. Moreover, the fastener assembly does not require tooling, which simplifies the assembly process and improves production efficiency. When the number of fasteners and the design position are reasonable, its stability performance meets the usage standard. More importantly, this design facilitates future assembly, disassembly and maintenance.

[0027] Regarding the CCS (2), it is worth noting that the CCS (2) has reserved welding positions for the battery cell sheets, and a support protrusion (22) is formed at the welding position to limit and fix the battery cell sheets. This structural design facilitates the auxiliary positioning and limiting of the battery cell sheets for subsequent welding using a rapid positioning machine, avoiding the need for additional tools for fixing or displacement during the welding process, thus achieving a better welding effect. It is also worth mentioning that, in the same way, there are also limiting assembly holes (23) designed and formed according to the shape of the positive and negative electrodes of the battery cell, so as to fix the battery cell in the designed position before welding, ensuring accuracy and avoiding looseness, shaking or collision.

[0028] Regarding the bracket box (3), both sides of the bracket box (3) are provided with heat insulation plates (31). The heat insulation plates (31) are provided with slots (310) at equal intervals. The slots (310) are used for the installation and fixing of the heat insulation auxiliary plates (32) of the power cell. Each heat insulation auxiliary plate (32) of the power cell is provided with a longitudinal slot (320). The longitudinal slots (320) are used for the longitudinal heat insulation auxiliary plates (33) of the power cell to be fixed by slotting. This design fits the purpose of this utility model to simplify the assembly process and improve production efficiency. It can be quickly set up through simple slotting. As a fireproof and heat-insulating material, it can not only provide the functions of limiting, positioning and auxiliary installation when the power cell is installed, but also achieve heat insulation and fire prevention to avoid the spread of fire in the event of a sudden fire in the power cell through the partition established by such a partition. It can reduce the danger to a certain extent, improve safety, and at the very least avoid the rapid spread time.

[0029] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

Claims

1. A support box structure for a battery pack, comprising a top cover (1), a CCS (2), and a support box (3), characterized in that, The bracket box (3) is symmetrically provided with multiple box fasteners (30); The CCS (2) is symmetrically formed with multiple lower inner undercuts (20) and upper outer undercuts (21); The upper cover (1) is symmetrically provided with multiple upper cover fasteners (10); The CCS (2) is fixedly assembled with the bracket box (3) by the cooperation of its lower inner buckle (20) and the box fastener (30), while the installation of the upper cover (1) is achieved by the fastening of the upper outer buckle (21) and the upper cover fastener (10). The CCS (2) has reserved welding positions for the battery cell, and a support protrusion (22) is formed at the welding position to limit and fix the battery cell; The two side walls of the bracket box (3) are provided with heat insulation plates (31), and the heat insulation plates (31) are provided with slots (310) at equal intervals. The slots (310) are used for the installation and fixing of the heat insulation auxiliary plate (32) of the power supply core by equal-distance insertion.

2. The support case structure for a battery pack according to claim 1, characterized by, Each of the aforementioned cell heat insulation auxiliary plates (32) is provided with a longitudinal slot (320).

3. The support case structure for a battery pack according to claim 2, characterized by The longitudinal slot (320) is used for the longitudinal cell heat insulation auxiliary plate (33) to be inserted and fixed.

4. The support case structure for a battery pack according to claim 1, characterized by The CCS (2) is designed and formed with limit assembly holes (23) according to the shape of the positive and negative electrodes of the battery cell, so as to fix the battery cell in the designed position before welding.

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