Molded battery module

Abstract

The utility model discloses a formed battery module and relates to the field of internal structures of lithium battery packs. The formed battery module comprises two groups of battery pack cells, and further comprises forming brackets A which are symmetrically distributed at the two ends of the upper end of one group of battery pack cells; the forming brackets B are symmetrically and fixedly connected to the upper and lower ends of the other group of battery pack cells; the forming support A and the forming support B are both provided with clamping grooves used in cooperation with a battery pack cell, and the forming support A and the forming support B are both clamped to the upper end and the lower end of the battery pack cell through the clamping grooves. The battery pack shell is designed according to the existing battery pack shell, is high in adaptability with the battery pack shell, is simple and convenient to operate, is provided with the corresponding formed nickel sheet and the outer coated epoxy resin plate, improves the efficiency, improves the stability of the battery pack, and is better in heat dissipation.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium batteries, and specifically relates to a formed battery module. Background Art

[0002] At present, there are no matching components for some special battery pack shells in the field of lithium battery applications. The existing brackets and nickel strips on the market are suitable for common battery pack shells. The existing brackets have poor compatibility with the provided battery pack shells and need to be filled with EVA foam to achieve positioning and fixation. The operation is difficult, and it affects the internal heat dissipation of the battery pack. It is not beautiful and cannot meet customer needs. In view of this, the present utility model is specially proposed. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a formed battery module that can overcome the above problems or at least partially solve the above problems.

[0004] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a formed battery module, including two groups of battery cells, and also including: a formed bracket A, symmetrically distributed at the upper ends of one group of the battery cells; a formed bracket B, symmetrically fixedly connected to the upper and lower ends of the other group of the battery cells; the formed bracket A and the formed bracket B are both provided with a card slot for use with the battery cells, and the formed bracket A and the formed bracket B are both connected to the upper and lower ends of the battery cells through the card slot; a formed nickel sheet compatible with the formed bracket A and the formed bracket B is installed on the formed bracket A and the formed bracket B, and is welded to the positive and negative pole surfaces of the battery cells; a top insulating plate is arranged above the battery cells and connected to the welding surfaces of the upper formed bracket A and the formed bracket B; a bottom insulating plate is arranged below the battery cells and connected to the welding surfaces of the lower formed bracket A and the formed bracket B.

[0005] In order to facilitate the rapid positioning of the formed nickel sheet and improve the installation efficiency, the upper surfaces of the forming bracket A and the forming bracket B located above and the lower surfaces of the forming bracket A and the forming bracket B located below are fixedly connected with limiting protrusions, and the limiting protrusions are equidistantly distributed on the outside of the card slot in a circle, and the forming nickel sheet is provided with a through opening for use with the limiting protrusions.

[0006] In order to facilitate the limiting of the forming bracket A and the forming bracket B, further, when the forming bracket A and the forming bracket B are connected to the end of the battery pack cell through the card slot, the limiting protrusion limits the forming bracket A and the forming bracket B so that the forming bracket A and the forming bracket B are located at the end of the battery pack cell.

[0007] In order to facilitate the top insulating plate and the bottom insulating plate to be firmly attached to the welding surface of the forming bracket A and the forming bracket B, the top insulating plate and the bottom insulating plate are further provided with a backing adhesive layer on the side that is attached to the forming bracket A and the forming bracket B.

[0008] In order to improve the high insulation and arc resistance of the top insulating plate and the bottom insulating plate and the overall strength of the battery module, the top insulating plate and the bottom insulating plate are further made of insulating epoxy resin plates.

[0009] In order to facilitate the secure fixing of the fixing plate to the battery module by screws and improve the stability of the entire battery pack, the forming bracket A and the forming bracket B are further provided with protective plate fixing nuts and nickel sheet leakage slots, and the top insulating plate is provided with power line welding openings and protective plate fixing screw openings used in conjunction with the protective plate fixing nuts.

[0010] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0011] 1. The utility model can make the battery usage more flexible.

[0012] 2. Simple and compact structure, easy assembly and high safety.

[0013] 3. The protection plate is easy and safe to install and remove.

[0014] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In the attached figure:

[0016] Figure 1 This is a schematic diagram of the assembly structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the forming bracket A in the present invention.

[0019] In the figure: 1. Top insulating plate; 2. Molded nickel sheet; 3. Molded bracket A; 4. Molded bracket B; 5. Battery pack cell; 6. Bottom insulating plate; 111. Power line welding hole; 112. Protection plate fixing screw hole; 311. Protection plate fixing nut; 312. Nickel sheet leakage notch. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0021] Example: Refer to Figure 1-Figure 3 A molded battery module includes two groups of battery cells 5, and also includes: a molded bracket A3, symmetrically distributed at the upper ends of one group of battery cells 5; a molded bracket B4, symmetrically fixedly connected to the upper and lower ends of the other group of battery cells 5; the molded bracket A3 and the molded bracket B4 are both provided with a card slot for use with the battery cells 5, and the molded bracket A3 and the molded bracket B4 are both connected to the upper and lower ends of the battery cells 5 through the card slot; a molded nickel sheet 2 adapted to the molded bracket A3 and the molded bracket B4 is installed on the molded bracket A3 and the molded bracket B4, and is welded to the positive and negative electrode surfaces of the battery cells 5; a top insulating plate 1 is arranged above the battery cells 5 and connected to the welding surface of the upper molded bracket A3 and the molded bracket B4;

[0022] The bottom insulating plate 6 is disposed below the battery cells 5 and is connected to the welding surfaces of the lower forming brackets A3 and B4.

[0023] The upper surfaces of the forming bracket A3 and the forming bracket B4 located above, and the lower surfaces of the forming bracket A3 and the forming bracket B4 located below are all fixedly connected to limiting protrusions, and the limiting protrusions are equidistantly distributed on the outside of the card slot in a circle. A through hole is opened on the forming nickel sheet 2 for use with the limiting protrusions. When installing the forming nickel sheet 2, the forming nickel sheet 2 can be quickly positioned and placed on the forming bracket A3 and the forming bracket B4 with the cooperation of the through hole and the limiting protrusion, which effectively improves the efficiency and quality of the electric welding connection between the forming nickel sheet 2 and the battery cell 5.

[0024] When the forming brackets A3 and B4 are connected to the ends of the battery cells 5 through the card slots, the limiting protrusions limit the forming brackets A3 and B4 so that the forming brackets A3 and B4 are located at the ends of the battery cells 5.

[0025] The top insulating plate 1 and the bottom insulating plate 6 are both provided with an adhesive layer on the side in contact with the forming bracket A3 and the forming bracket B4.

[0026] The top insulating plate 1 and the bottom insulating plate 6 are both insulating epoxy resin plates.

[0027] Both the forming bracket A3 and the forming bracket B4 are provided with a protection plate fixing nut 311 and a nickel sheet leakage notch 312, and the top insulating plate 1 is provided with a power line welding opening 111 and a protection plate fixing screw opening 112 used in conjunction with the protection plate fixing nut 311.

[0028] When assembling the battery, the battery pack cells 5 are first connected and assembled up and down through the forming bracket A3 and the forming bracket B4, so that the assembly process of the battery pack cells 5 is simple and convenient, and the structure is compact while ensuring the performance of the battery pack cells 5, and the overall internal filler of the battery shell is reduced. A set of matching formed nickel sheets 2 designed according to the existing battery pack shell and the forming bracket A3 and the forming bracket B4 improves the assembly efficiency of the entire battery module, and can be designed with different voltage capacities as required. In addition, a set of formed nickel sheets 2 is highly compatible with the forming bracket, and the spot welding process is more convenient. The top insulating plate 1 and the bottom insulating plate 6 are designed with a one-side adhesive backing. When installing, they are directly attached to the spot welding surface of the forming bracket A3 and the forming bracket B4 to complete the installation operation. In the later stage, good insulation effect can be achieved in the process of assembling the protection plate and inserting the shell, and time and labor are saved. The forming bracket A3 and the forming bracket B4 are designed The protective plate is fixed to the protective plate fixing nut 311 by screws, and is insulated in the middle by the top insulating plate 1, so that the protective plate can be assembled and disassembled conveniently and quickly. The nickel sheet leakage notch 312 is compatible with the formed nickel sheet 2. The formed bracket A3 and the formed bracket B4 are notched at the leakage of the formed nickel sheet 2, and the leakage of the formed nickel sheet 2 can be bent inward in the nickel sheet leakage notch 312, so as to achieve the benefit of not occupying the excess space inside the existing battery shell and improving the utilization rate of the structural space. The top insulating plate 1 is provided with a power line welding opening 111 and a protective plate fixing screw opening 112. According to the existing internal space design of the battery shell, it is convenient to weld the power line of the protective plate directly on the spot welding surface of the formed nickel sheet 2, and the protective plate is fixed by screws, which improves efficiency while also increasing the stability of the battery pack, better heat dissipation, and effectively improves practicality and safety.

[0029] The above description is merely a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A formed battery module, comprising two groups of battery cells (5), characterized in that: Also includes: A molded bracket A (3) is symmetrically distributed at both ends of the upper ends of one group of battery cells (5); A molded bracket B (4) is symmetrically fixedly connected to the upper and lower ends of another group of battery cells (5); The forming bracket A (3) and the forming bracket B (4) are both provided with a card slot for use with the battery pack core (5), and the forming bracket A (3) and the forming bracket B (4) are both connected to the upper and lower ends of the battery pack core (5) through the card slot; A formed nickel sheet (2) adapted to the formed bracket A (3) and the formed bracket B (4) is mounted on the formed bracket A (3) and the formed bracket B (4) and is connected to the positive and negative electrode surfaces of the battery pack cell (5) by electric welding; A top insulating plate (1) is arranged above the battery pack core (5) and is connected to the welding surfaces of the upper forming bracket A (3) and the forming bracket B (4); The bottom insulating plate (6) is arranged below the battery pack core (5) and is connected to the welding surfaces of the lower forming bracket A (3) and the forming bracket B (4).

2. A formed battery module according to claim 1, characterized in that: The upper surfaces of the forming bracket A (3) and the forming bracket B (4) located above and the lower surfaces of the forming bracket A (3) and the forming bracket B (4) located below are all fixedly connected with limiting protrusions, and the limiting protrusions are equidistantly distributed on the outside of the card slot in a circular pattern. The forming nickel sheet (2) is provided with a through opening for use with the limiting protrusions.

3. A formed battery module according to claim 2, characterized in that: When the forming bracket A (3) and the forming bracket B (4) are connected to the ends of the battery pack cells (5) through the card slots, the limiting protrusions limit the forming bracket A (3) and the forming bracket B (4) so ​​that the forming bracket A (3) and the forming bracket B (4) are located at the ends of the battery pack cells (5).

4. The formed battery module according to claim 1, characterized in that: The top insulating plate (1) and the bottom insulating plate (6) are both provided with a backing adhesive layer on the sides thereof that are in contact with the forming bracket A (3) and the forming bracket B (4).

5. The formed battery module according to claim 1, characterized in that: The top insulating plate (1) and the bottom insulating plate (6) are both insulating epoxy resin plates.

6. The formed battery module according to claim 1, characterized in that: The forming bracket A (3) and the forming bracket B (4) are both provided with a protection plate fixing nut (311) and a nickel sheet leakage notch (312), and the top insulating plate (1) is provided with a power line welding opening (111) and a protection plate fixing screw opening (112) used in conjunction with the protection plate fixing nut (311).

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