Two-way stackable square-shell battery box

Abstract

The invention belongs to the technical field of lithium battery boxes, and provides a bidirectional stackable square-shell battery box which comprises a box body, positioning raised lines are fixedly mounted at the bottom end of the box body at equal intervals, positioning grooves are formed in the top end of the box body at equal intervals, rotating sleeves are rotatably connected to four corners of the top end of the box body, and positioning columns are fixedly mounted at four corners of the bottom end of the box body; when square-shell battery boxes are stacked, four positioning columns can be inserted into four rotating sleeves which are arranged in a one-to-one correspondence mode, the four rotating sleeves rotate anticlockwise, arc-shaped locking blocks can be jacked open through arc-shaped locking grooves, reset springs deform outwards, and then when the next locking groove rotates to be aligned with the locking blocks, the four rotating sleeves can rotate anticlockwise. Under the acting force of the reset spring, the locking block resets and can be clamped into the locking groove again, the rotating sleeve is locked, then the positioning column is fixed to the rotating sleeve and cannot be separated, the stacked box bodies are connected more firmly, extra operation of workers is not needed in the stacking process, only the box bodies need to be stacked and pressed properly, and operation is rapid, easy and convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of lithium battery boxes and provides a bidirectionally stackable square shell battery box. Background Art

[0002] The shape of square battery boxes is mostly square or nearly square. This design facilitates the regular stacking of multiple battery boxes in space and improves space utilization. It can accommodate multiple battery cells or battery packs. Square battery boxes are widely used in electric vehicles to store large-capacity power batteries.

[0003] After a lot of searching, a stacked household energy storage battery box structure with a patent publication number of CN217641622U was found, which relates to the technical field of battery box structure, including a box body, upper metal frames are symmetrically arranged at both ends of the box body, lock tongues are arranged at the upper ends of the two side walls of the upper metal frame, hook seats are correspondingly arranged at the lower ends of the two side walls of the metal frame, a lower metal frame is arranged at the bottom of the box body, a foot pad is arranged at the bottom of the box body, and a panel is arranged on the surface of one end of the box body. By arranging lock tongues and hook seats on the upper metal frame, adjacent battery boxes can be quickly and conveniently combined and disassembled for maintenance under the cooperation of lock tongues and hook seats, which is convenient for users to increase or decrease the number of battery boxes according to different power requirements, greatly improving the practicality and scope of use of the device, and the buckle formed by the lock tongue and the hook seat fixes the adjacent battery boxes, which is not only simple in structure, but also can form a structurally stable energy storage system; however, the following problems still exist when the existing lithium batteries are stacked: The coordination of the lock tongue and the hook seat usually requires precise docking. Each time stacking, the staff needs to manually adjust the position and angle of each battery box to ensure that the lock tongue can be correctly inserted into the hook seat and fixed in place. This operation is not only time-consuming, but also prone to inaccurate docking and may need to be readjusted. During the stacking process of each battery box, the lock tongue and the hook seat need to be operated on all sides to ensure that the connection in each direction is correctly locked. For situations where multiple battery boxes need to be stacked, this means that the staff have to perform multiple steps, each of which involves manual operation. Such a tedious process will significantly increase working time, especially when the battery box is heavy or large in size. Manual operation of the lock tongue and the hook seat requires a certain amount of strength. Frequent such operations will cause physical burden on the staff. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and solve the problem that the locking method of the existing battery boxes after stacking is not convenient and fast enough.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a bidirectional stackable square shell battery box, comprising a box body, the bottom of the box body is fixedly provided with positioning convex strips at equal intervals, the top of the box body is provided with positioning grooves at equal intervals, the four corners of the top of the box body are rotatably connected with rotating sleeves, and the four corners of the bottom of the box body are fixedly provided with positioning columns; The rotating sleeve is provided with locking grooves around it, and a locking block arranged in an L shape is slidably engaged in the locking groove, and a reset spring is connected to the bottom end of the locking block.

[0006] In a preferred technical solution of the present invention, there are three positioning ridges and three positioning grooves, and the positions of the three positioning ridges and the three positioning grooves are arranged in a one-to-one correspondence.

[0007] In a preferred technical solution of the present invention, the bottom end of the rotating sleeve is connected to the top end of the box body via a bearing.

[0008] In a preferred technical solution of the present invention, the four positioning posts are arranged in one-to-one correspondence with the four rotating sleeves, and the lengths of the four positioning posts are matched with the depths of the four rotating sleeves.

[0009] In a preferred technical solution of the present invention, the outer surfaces of the four positioning columns are provided with external threads, and the inner surfaces of the four rotating sleeves are provided with internal threads, and the external threads match the internal threads.

[0010] In a preferred technical solution of the present invention, the locking block is matched with the locking groove, and the left sides of the locking block and the locking groove are both arranged in an arc shape.

[0011] In a preferred technical solution of the present invention, one end of the return spring away from the locking block is fixedly mounted on the top of the box body, and the return spring is composed of a central rubber rod and springs surrounding it.

[0012] Compared with the prior art, the present invention has the following beneficial effects: When the square shell battery boxes are stacked, the four positioning posts will be inserted into the four rotating sleeves that are arranged one by one, so that the external thread matches the internal thread, and then under the downward pressure of the four positioning posts, the four rotating sleeves can be rotated counterclockwise, so that the four positioning posts are completely inserted into the four rotating sleeves. At the same time, when the four rotating sleeves are forced to rotate counterclockwise, the arc-shaped locking block can be pushed open through the arc-shaped locking groove and the reset spring can be deformed outward. Then, when the next locking groove is rotated to align with the locking block, the locking block is reset under the action of the reset spring and can be re-stuck in the locking groove to lock the rotating sleeve, thereby fixing the positioning posts on the rotating sleeve and preventing them from detaching, making the stacked box connection more firmly. No additional operation is required during the stacking process. The staff only needs to stack the boxes and press them appropriately. The operation is quick and easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a rendering of the stacking state of the boxes of the present invention; Figure 2 This is a bottom structure effect diagram of the box body of the present invention; Figure 3 This is a rendering of the locking state of the rotary sleeve of the present invention; Figure 4 It is the effect diagram of the split state of the rotary sleeve of the present invention.

[0014] In the figure: 1, box body; 2, positioning convex strip; 3, positioning groove; 4, rotating sleeve; 5, positioning column; 6, return spring; 7, locking block; 8, locking groove. DETAILED DESCRIPTION

[0015] See also Figure 1-4 The present invention provides a technical solution: a bidirectional stackable square shell battery box, comprising a box body 1, a positioning convex strip 2 is fixedly installed at the bottom of the box body 1 at equal intervals, a positioning groove 3 is opened at the top of the box body 1 at equal intervals, there are three positioning convex strips 2 and three positioning grooves 3, the positions of the three positioning convex strips 2 and the positioning grooves 3 are arranged one by one, a rotating sleeve 4 is rotatably connected to the four corners of the top of the box body 1, a positioning column 5 is fixedly installed at the four corners of the bottom of the box body 1, a locking groove 8 is opened around the rotating sleeve 4, a locking block 7 arranged in an L shape is slidably engaged in the locking groove 8, and a reset The spring 6, through the docking of the positioning convex strip 2 and the positioning groove 3, the operator can quickly dock multiple boxes 1, reducing the difficulty of alignment during the assembly process. When multiple boxes 1 are docked, the positioning columns 5 at the four corners of the bottom end of the box 1 will be inserted into the rotating sleeves 4 at the four corners of the top end of the box 1 to further strengthen the positioning. At the same time, after the positioning columns 5 are inserted into the rotating sleeve 4, the rotating sleeve 4 can be locked by the locking block 7 being inserted into the locking groove 8 to prevent the rotating sleeve 4 from rotating, so that the rotating sleeve 4 inserted into the positioning columns 5 cannot be disengaged, thereby playing a fixing role.

[0016] The bottom end of the rotating sleeve 4 is connected to the top end of the housing 1 via a bearing, which can provide smooth rotational motion, reduce friction and wear, and enable the rotating sleeve 4 to rotate easily and smoothly without getting stuck or obstructed due to imbalance or excessive friction.

[0017] The outer surfaces of the four positioning posts 5 are provided with external threads, and the inner surfaces of the four rotating sleeves 4 are provided with internal threads, and the external threads match the internal threads. The four positioning posts 5 are arranged in a one-to-one correspondence with the four rotating sleeves 4, and the lengths of the four positioning posts 5 are adapted to the depths of the four rotating sleeves 4. When the square shell battery boxes are stacked, the four positioning posts 5 will be inserted into the four rotating sleeves 4 arranged in a one-to-one correspondence, so that the external threads match the internal threads, and then under the downward pressure of the four positioning posts 5, the four rotating sleeves 4 can be rotated counterclockwise, so that the four positioning posts 5 are fully inserted into the four rotating sleeves 4 to complete the stacking positioning.

[0018] The rotating sleeve 4 is provided with locking grooves 8 around, and a locking block 7 arranged in an L shape is slidably engaged in the locking grooves 8. A reset spring 6 is connected to the bottom end of the locking block 7. The end of the reset spring 6 away from the locking block 7 is fixedly mounted on the top of the box body 1. The reset spring 6 is composed of a rubber rod in the center and a spring surrounding it. The locking block 7 is adapted to the locking groove 8. The left sides of the locking block 7 and the locking groove 8 are both arranged in an arc shape. When the four rotating sleeves 4 are subjected to force to rotate counterclockwise, the arc-shaped locking block 7 can be pushed open through the arc-shaped locking groove 8 and the reset spring 6 can be deformed outward. After that, when the next locking groove 8 is rotated to be aligned with the locking block 7, the locking block 7 is reset under the action of the reset spring 6 and can be re-engaged in the locking groove 8 to lock the rotating sleeve 4.

[0019] Working principle: When stacking square shell battery boxes, the operator can quickly connect multiple boxes 1 by connecting the positioning convex strips 2 and the positioning grooves 3, which reduces the difficulty of alignment during the assembly process; When the square shell battery boxes are stacked, the four positioning posts 5 will be inserted into the four rotating sleeves 4 arranged in a one-to-one correspondence, so that the external thread matches the internal thread, and then under the downward pressure of the four positioning posts 5, the four rotating sleeves 4 can be rotated counterclockwise, so that the four positioning posts 5 are completely inserted into the four rotating sleeves 4. At the same time, when the four rotating sleeves 4 are forced to rotate counterclockwise, the arc-shaped locking block 7 can be pushed open through the arc-shaped locking groove 8 and the reset spring 6 can be deformed outward. After that, when the next locking groove 8 is rotated to align with the locking block 7, the locking block 7 is reset under the action of the reset spring 6 and can be re-slotted into the locking groove 8 to lock the rotating sleeve 4; When the stacked boxes 1 need to be disassembled, since the battery boxes themselves are heavy, two workers are generally required to cooperate to prevent damage during one person's handling and collection. When two workers are disassembling the stacked boxes 1, the workers are required to first pry them apart and then use the lock block 7 to deform the reset spring 6 outward, and then lift the box 1 upward to allow the positioning column 5 to disengage from the rotating sleeve 4 and allow the rotating sleeve 4 to rotate clockwise, so that the disassembly process of the box 1 is more stable. Further strengthening the safety protection during disassembly and enhancing the fault tolerance of the locking mechanism will further improve the safety of the entire handling process and reduce operational risks.

Claims

1. A bidirectional stackable square shell battery box, comprising a box body, characterized in that: The bottom of the box body is fixedly provided with positioning convex strips at equal intervals, the top of the box body is provided with positioning grooves at equal intervals, the four corners of the top of the box body are rotatably connected with rotating sleeves, and the four corners of the bottom of the box body are fixedly provided with positioning columns; The rotating sleeve is provided with locking grooves around it, and a locking block arranged in an L shape is slidably engaged in the locking groove, and a reset spring is connected to the bottom end of the locking block.

2. A bidirectional stackable square shell battery box as claimed in claim 1, characterized in that: There are three positioning convex strips and three positioning grooves, and the positions of the three positioning convex strips and the positioning grooves are arranged in a one-to-one correspondence.

3. The bidirectional stackable square shell battery box according to claim 1, characterized in that: The bottom end of the rotating sleeve is connected to the top end of the box body through a bearing.

4. A bidirectional stackable square shell battery box as claimed in claim 1, characterized in that: The four positioning posts are arranged in one-to-one correspondence with the four rotating sleeves, and the lengths of the four positioning posts are matched with the depths of the four rotating sleeves.

5. The bidirectional stackable square shell battery box according to claim 1, characterized in that: The outer surfaces of the four positioning columns are provided with external threads, and the inner surfaces of the four rotating sleeves are provided with internal threads, and the external threads match the internal threads.

6. The bidirectional stackable square shell battery box according to claim 1, characterized in that: The locking block is matched with the locking slot, and the left sides of the locking block and the locking slot are both arranged in an arc shape.

7. The bidirectional stackable square shell battery box according to claim 1, characterized in that: One end of the return spring away from the locking block is fixedly mounted on the top of the box body, and the return spring is composed of a central rubber rod and springs surrounding it.

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