Battery box combined connection structure

Abstract

The utility model discloses a combined connection structure of a battery box, which comprises splicing seats clamped at two ends of a battery cell, two adjacent sides of each splicing seat are respectively provided with a first key strip, and the other two adjacent sides of each splicing seat are respectively provided with a first key slot matched with the first key strip; the adjacent splicing seats are mutually clamped through first key strips and first key grooves, the frame assembly comprises a first L-shaped frame body and a second L-shaped frame body, second key strips matched with the first key grooves are formed in the inner wall of the first L-shaped frame body, and second key grooves matched with the first key strips are formed in the inner wall of the second L-shaped frame body; the end parts of the first L-shaped frame body and the second L-shaped frame body are mutually clamped and locked; according to the lithium battery support structure, the problem that the upper ends of the battery cells are difficult to align and clamp in the holes of the support when the upper support is mounted and clamped due to the fact that the upper support and the lower support of the lithium battery support structure in the prior art are mostly of an integrated structure and the number of the battery cells is large is solved.

Description

Battery box assembly connection structure Technical Field

[0001] This utility model relates to the field of battery boxes, specifically to a battery box assembly connection structure. Background Technology

[0002] Lithium batteries are widely used as a green and environmentally friendly new energy source. Existing lithium battery technology typically includes multiple battery cells within the battery box. For example, Chinese patent CN210272474U provides a lithium battery support structure, comprising a first support with multiple first support holes for fixing the positive terminal of the battery, and a second support opposite the first support, with multiple second support holes for fixing the negative terminal of the battery. These second support holes correspond one-to-one with the first support holes. In such existing lithium battery support structures, during cell installation, the cells are typically first secured to the lower support, and then the upper support is secured to the upper end of the cell. Due to the large number of cells, it is difficult to effectively align the upper end of the cells within the holes of the upper support during installation. If misalignment occurs during installation, the cells or support may deform and be damaged sooner or later. Summary of the Invention

[0003] The purpose of this utility model is to provide a battery box assembly connection structure, which solves the problem in the existing lithium battery bracket structure, where the upper and lower brackets are mostly integrated structures. Due to the large number of battery cells, it is difficult to effectively align and engage the upper ends of the battery cells with the holes in the bracket when installing and engaging the upper bracket.

[0004] To achieve the above objectives, this utility model provides a battery box assembly connection structure, which includes splicing seats that engage with both ends of the battery cell. First key strips are respectively provided on adjacent sides of the splicing seats, and first key slots that mate with the first key strips are respectively provided on the other adjacent sides of the splicing seats. Adjacent splicing seats engage with each other through the first key strips and the first key slots.

[0005] Multiple splicing seats interlock to form a rectangular seat structure. The rectangular seat structure is provided with a frame assembly on the outside. The frame assembly includes a first L-shaped frame and a second L-shaped frame. The inner wall of the first L-shaped frame is formed with a second key bar that mates with the first keyway. The inner wall of the second L-shaped frame is formed with a second keyway that mates with the first key bar.

[0006] The ends of the first L-shaped frame and the second L-shaped frame are engaged and locked together.

[0007] Preferably, a mating block is formed on the upper side of the end of the second L-shaped frame, a support block is rotatably provided on the lower side of the end of the second L-shaped frame, a slot is formed on the upper side of the end of the first L-shaped frame to cooperate with the mating block, and the lower side of the end of the first L-shaped frame contacts the support block.

[0008] Preferably, the locking screw passes through the docking block, the slot, and the support block in sequence, and engages the locking nut.

[0009] Preferably, the end of the splicing base is formed with a relief groove, and the edge of the relief groove is formed with a limit block.

[0010] Preferably, the side of the frame assembly has a mounting groove, and the two ends of the positioning strip are respectively engaged in the mounting groove.

[0011] Preferably, the end of the positioning strip is locked in the mounting groove by a screw assembly.

[0012] Beneficial Effects: This utility model provides a battery box assembly connection structure, which includes splicing seats that engage with both ends of the battery cell. Each splicing seat has a first key strip on one adjacent side and a first key groove on the other adjacent sides that mates with the first key strip. Adjacent splicing seats engage with each other via the first key strip and the first key groove. Multiple splicing seats engage with each other to form a rectangular base structure. A frame assembly is provided on the outside of the rectangular base structure. The frame assembly includes a first L-shaped frame and a second L-shaped frame. The inner wall of the first L-shaped frame has a second key strip that mates with the first key groove, and the inner wall of the second L-shaped frame has a second key groove that mates with the first key strip. The ends of the first L-shaped frame and the second L-shaped frame engage and lock together. During installation, the splicing seats are first... The battery cells are engaged at both ends, and then each row of cells is connected by a first key bar and a first keyway, so that the cells and the splicing base are arranged to form a rectangular base structure. The first L-shaped frame and the second L-shaped frame are engaged at the edge of the rectangular base structure, so that the first key bar and the second keyway are engaged, and the second key bar and the first keyway are engaged. When installing the L-shaped frame, the slot at the end of the first L-shaped frame and the mating block at the end of the second L-shaped frame are engaged. Then, the support block is rotated so that the end of the first L-shaped frame is engaged between the mating block and the support block, and is tightened with locking screws and locking nuts to ensure the stability of the formed frame assembly. The upper and lower frame assemblies are connected and fixed by positioning strips. The battery box assembly connection structure provided by this utility model can ensure that the cells can be effectively aligned and locked together during installation. At the same time, the entire fixed frame structure has strong stability and is easy to disassemble and install.

[0013] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 is a structural diagram of the battery box assembly connection structure provided by this utility model;

[0016] Figure 2 is an exploded view of the frame components in the battery box assembly connection structure provided by this utility model;

[0017] Figure 3 is a structural diagram of the battery cell in the battery box assembly connection structure provided by this utility model;

[0018] Figure 4 is a structural diagram of the splicing seat in the battery box assembly connection structure provided by this utility model.

[0019] Explanation of reference numerals in the attached figures

[0020] 1-Frame assembly; 2-Battery cell; 3-Positioning strip; 4-First L-shaped frame; 5-Second key strip; 6-Card slot; 7-Second L-shaped frame; 8-Second key slot; 9-Matching block; 10-Support block; 11-Splicing base; 12-Limiting block; 13-First key slot; 14-First key strip; 15-Avoidance slot. Detailed Implementation

[0021] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0022] As shown in Figures 1-4: This utility model provides a battery box assembly connection structure, characterized in that the battery box assembly connection structure includes splicing seats 11 that engage with both ends of the battery cell 2. First key strips 14 are respectively provided on adjacent sides of the splicing seats 11, and first key grooves 13 that cooperate with the first key strips 14 are respectively provided on the other adjacent sides of the splicing seats 11. Adjacent splicing seats 11 engage with each other through the first key strips 14 and the first key grooves 13. Multiple splicing seats 11 engage with each other to form a rectangular base structure. A frame assembly 1 is provided on the outside of the rectangular base structure. The frame assembly 1 includes a first L-shaped frame 4 and a second L-shaped frame 7. A second key strip 5 that cooperates with the first key groove 13 is formed on the inner wall of the first L-shaped frame 4, and a second key groove 8 that cooperates with the first key strip 14 is formed on the inner wall of the second L-shaped frame 7. The ends of the first L-shaped frame 4 and the second L-shaped frame 7 engage and lock with each other. During installation, the splicing base is first snapped onto both ends of the battery cell. Then, the battery cells in each row are connected by the first key strip and the first keyway, so that the battery cells and the splicing base are arranged to form a rectangular base structure. The first L-shaped frame and the second L-shaped frame are snapped onto the edge of the rectangular base structure, so that the first key strip and the second keyway are snapped, and the second key strip and the first keyway are snapped. When installing the L-shaped frame, the slot at the end of the first L-shaped frame and the mating block at the end of the second L-shaped frame are snapped. Then, the support block is rotated so that the end of the first L-shaped frame is snapped between the mating block and the support block, and is tightened with locking screws and locking nuts to ensure the stability of the formed frame assembly. The upper and lower frame assemblies are connected and fixed by positioning strips. The battery box assembly connection structure provided by this utility model can ensure that the battery cells can be effectively aligned and snapped together during installation. At the same time, the entire fixed frame structure has strong stability and is easy to disassemble and install.

[0023] In a preferred embodiment of this utility model, in order to effectively engage and fasten the first L-shaped frame and the second L-shaped frame, a mating block 9 is formed on the upper side of the end of the second L-shaped frame 7, and a support block 10 is rotatably provided on the lower side of the end of the second L-shaped frame 7. A slot 6 that mates with the mating block 9 is formed on the upper side of the end of the first L-shaped frame 4, and the lower side of the end of the first L-shaped frame 4 contacts the support block 10.

[0024] In a preferred embodiment of this utility model, in order to lock the two L-shaped frames together to prevent the splicing seats from becoming loose, the locking screw passes through the docking block 9, the slot 6 and the support block 10 in sequence, and tightens the locking nut.

[0025] In a preferred embodiment of the present invention, in order to facilitate the installation of electrodes between battery cells, an avoidance groove 15 is formed at the end of the splicing base 11, and a limit block 12 is formed at the edge of the avoidance groove 15.

[0026] In a preferred embodiment of this utility model, in order to lock the upper and lower frame components together, a mounting groove is formed on the side of the frame component 1, and the two ends of the positioning strip 3 are respectively engaged in the mounting groove; the ends of the positioning strip 3 are locked in the mounting groove by a screw assembly.

[0027] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0028] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0029] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A battery box assembly connection structure, characterized in that, The battery box assembly connection structure includes splicing seats (11) that engage with both ends of the battery cell (2). Each splicing seat (11) has a first key bar (14) on one of its adjacent sides, and a first keyway (13) that mates with the first key bar (14) on the other adjacent sides. Adjacent splicing seats (11) engage with each other via the first key bar (14) and the first keyway (13). Multiple splicing seats (11) engage with each other to form a rectangular base. The rectangular base structure is provided with a frame assembly (1) on the outside. The frame assembly (1) includes a first L-shaped frame (4) and a second L-shaped frame (7). The inner wall of the first L-shaped frame (4) is formed with a second key bar (5) that cooperates with the first keyway (13). The inner wall of the second L-shaped frame (7) is formed with a second keyway (8) that cooperates with the first key bar (14). The ends of the first L-shaped frame (4) and the second L-shaped frame (7) are locked together.

2. The battery box assembly connection structure according to claim 1, characterized in that, A mating block (9) is formed on the upper side of the end of the second L-shaped frame (7), and a support block (10) is rotatably provided on the lower side of the end of the second L-shaped frame (7). A slot (6) that mates with the mating block (9) is formed on the upper side of the end of the first L-shaped frame (4), and the lower side of the end of the first L-shaped frame (4) contacts the support block (10).

3. The battery box assembly connection structure according to claim 2, characterized in that, The locking screw passes through the docking block (9), the slot (6) and the support block (10) in sequence, and tightens the locking nut.

4. The battery box assembly connection structure according to claim 3, characterized in that, The end of the splicing base (11) is formed with a relief groove (15), and the edge of the relief groove (15) is formed with a limit block (12).

5. The battery box assembly connection structure according to claim 4, characterized in that, The frame assembly (1) has a mounting groove on its side, and the two ends of the positioning strip (3) are respectively engaged in the mounting groove.

6. The battery box assembly connection structure according to claim 5, characterized in that, The end of the positioning strip (3) is locked in the mounting groove by a screw assembly.

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