Square-shell battery cell restraining tray
By introducing a screw-driven extrusion plate for adjusting the distance and a U-shaped plate for limiting the position in the square-shell cell restraint tray, the problem of the limited applicability of existing trays is solved, and effective extrusion restraint of cells of different sizes is achieved.
Patent Information
- Application Number
- CN202422837149.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-20
AI Technical Summary
Existing square-shell cell restraint trays can only compress and limit cells of one size, which cannot meet the needs of cells of different sizes, thus limiting their applicability.
A structure including a fixed frame, a lead screw, an extrusion plate, a U-shaped plate, a connecting rod, and a limiting cylinder is designed. The extrusion plate is driven by the lead screw to adjust the distance, and the U-shaped plate and the limiting cylinder are used for limiting, so as to achieve adaptive extrusion of battery cells of different sizes.
It achieves effective compression and restraint of square-shell battery cells of different sizes, improving the applicability and compression effect of the restraint tray.
Smart Images
Figure CN223502073U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of battery cell manufacturing technology, and in particular to a square-shell battery cell restraint tray. Background Technology
[0002] After the battery cells are manufactured, they need to undergo formation and capacity testing. Formation involves initial charging and discharging to activate the internal chemical substances, while capacity testing involves sorting the cells by capacity. During the formation and capacity testing process, a large amount of gas is generated inside the cells, making them prone to bulging. The more severe the bulging, the greater the risk of explosion, which could damage testing equipment or even the entire battery pack. Therefore, a certain pressure needs to be applied to the cells during the formation and capacity testing process to limit bulging and ensure that the process is stable and reliable.
[0003] Existing square-shell battery cell restraint trays mostly integrate multiple battery cells into a U-shaped frame using multiple fixed-size snap-fit plates. Then, restraint blocks of the same size as the battery cells fill the remaining space in the U-shaped frame, thereby compressing and limiting the multiple snap-fit plates and the battery cells. However, this method of compression and restraint can only compress and limit battery cells of one size. Therefore, when it is necessary to compress and restrain square-shell battery cells of different sizes, different restraint trays need to be replaced, which greatly reduces the applicability of the square-shell battery cell restraint tray. Therefore, there is an urgent need for a square-shell battery cell restraint tray to solve this problem. Utility Model Content
[0004] The purpose of this utility model is to provide a square-shell battery cell restraint tray to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a square-shell battery cell restraint tray, comprising a fixing frame for mounting components in the square-shell battery cell restraint tray and multiple extrusion plates for restraining the square-shell battery cell. Two lead screws are symmetrically and rotatably mounted on the inner wall of the fixing frame. One end of each lead screw extends rotatably to the outside of the fixing frame and is fixedly sleeved with a synchronous pulley. A synchronous belt is rotatably sleeved between the two synchronous pulleys. A U-shaped frame is fixedly mounted on the side wall of the fixing frame. A motor is fixedly mounted on the inner wall of the U-shaped frame. The end of the output shaft of the motor is fixedly connected to the axis of the synchronous belt.
[0006] Two threaded holes are symmetrically opened on the sidewalls of the multiple extrusion plates, and the two lead screws rotate through the multiple threaded holes opened on the sidewalls of the multiple extrusion plates respectively;
[0007] The top surfaces of two adjacent extrusion plates are slidably engaged with U-shaped plates. The opposite side walls of the two U-shaped plates are respectively fixedly installed with connecting rods and limiting cylinders, and the connecting rods are slidably inserted into the interior of the limiting cylinders.
[0008] Preferably, the side wall of the limiting cylinder has a limiting hole, and the inside of the limiting hole is threaded with a threaded limiting post, which extends into the inside of the limiting cylinder and contacts the surface of the connecting rod.
[0009] Preferably, limiting strips are symmetrically fixedly connected to both sides of the extrusion plate, and the sidewalls of the limiting strips are in contact with the square-shell battery cell body.
[0010] Preferably, two sets of limiting rods are symmetrically fixedly installed on the inner wall of the fixed frame, and two sets of limiting holes are symmetrically opened on the side wall of the extrusion plate.
[0011] Preferably, the multiple limiting rods fixedly connected to the inner wall of the fixed frame slide through the multiple limiting holes opened on the side wall of the extrusion plate.
[0012] Preferably, the inner walls of the plurality of U-shaped plates are fixedly connected with rubber anti-slip pads, and the sidewalls of the rubber anti-slip pads are in contact with the extrusion plate.
[0013] Compared with the prior art, the technical effects and advantages of this utility model are as follows:
[0014] This square-shell cell restraint tray benefits from the setting of a lead screw and multiple extrusion plates. The multiple extrusion plates are uniformly threaded onto the wall of the lead screw. Therefore, by rotating the lead screw, the multiple extrusion plates will be synchronously driven to move closer or further apart. Thus, the distance between two adjacent extrusion plates can be adjusted to accommodate square-shell cells of different sizes.
[0015] The square-shell battery cell restraint tray, thanks to the U-shaped plate, connecting rod and limiting cylinder, can further limit the two adjacent extrusion plates, thereby improving the extrusion effect of the extrusion plates on the square-shell battery cell;
[0016] Compared with existing technologies, this square-shell cell restraint tray can effectively adjust the distance between two adjacent extrusion plates, thereby enabling the extrusion and restraint of square-shell cells of different sizes. Attached Figure Description
[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a three-dimensional sectional view of the fixed frame in this utility model;
[0020] Figure 3 This is a schematic diagram of the extrusion plate, U-shaped plate, and connecting rod in this utility model.
[0021] Explanation of reference numerals in the attached figures:
[0022] In the diagram: 1. Fixed frame; 2. Lead screw; 3. Extrusion plate; 4. Synchronous pulley; 5. Synchronous belt; 6. Motor; 7. U-shaped frame; 8. Threaded hole; 9. U-shaped plate; 10. Connecting rod; 11. Limiting cylinder; 12. Limiting post; 13. Limiting strip; 14. Limiting rod. Detailed Implementation
[0023] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.
[0024] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.
[0025] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.
[0026] like Figures 1 to 3 The main structure of a square battery cell restraint tray shown is a fixing frame 1 for mounting components in the restraint tray for square battery cells and multiple extrusion plates 3 for restraining square battery cells. Two lead screws 2 are symmetrically mounted on the inner wall of the fixing frame 1. One end of the two lead screws 2 extends to the outside of the fixing frame 1 and is fixedly sleeved with a synchronous pulley 4. A synchronous belt 5 is rotatably sleeved between the two synchronous pulleys 4. A U-shaped frame 7 is fixedly mounted on the side wall of the fixing frame 1. A motor 6 is fixedly mounted on the inner wall of the U-shaped frame 7. The output shaft end of the motor 6 is fixedly connected to the axis of the synchronous belt 5. Thanks to the setting of the lead screws 2 and multiple extrusion plates 3, the multiple extrusion plates 3 are uniformly threaded and sleeved to the rod wall of the lead screws 2. Therefore, by rotating the lead screws 2, the synchronous belt 5 is moved to move the multiple extrusion plates 3 closer to each other or separate them. Thus, the distance between two adjacent extrusion plates 3 can be adjusted to accommodate square battery cells of different sizes.
[0027] Two threaded holes 8 are symmetrically opened on the side wall of multiple extrusion plates 3. Two lead screws 2 rotate through the multiple threaded holes 8 opened on the side wall of multiple extrusion plates 3 respectively. Thanks to the setting of the threaded holes 8, it is possible to drive multiple extrusion plates 3 to squeeze each other synchronously or separate each other synchronously by rotating the lead screws 2, so as to squeeze and constrain square shell cells of different sizes.
[0028] U-shaped plates 9 are slidably engaged on the top surfaces of two adjacent extrusion plates 3. Connecting rods 10 and limiting cylinders 11 are fixedly installed on the opposite side walls of the two U-shaped plates 9, and the connecting rods 10 are slidably inserted into the interior of the limiting cylinders 11. Thanks to the setting of the U-shaped plates 9, connecting rods 10 and limiting cylinders 11, the two adjacent extrusion plates 3 can be further limited, thereby improving the extrusion effect of the extrusion plates 3 on the square battery cell.
[0029] The side wall of the limiting cylinder 11 has a limiting hole, and the inside of the limiting hole is threaded with a threaded limiting post 12. The threaded limiting post 12 extends into the inside of the limiting cylinder 11 and contacts the surface of the connecting rod 10. Thanks to the setting of the threaded limiting post 12, after the positions of the two adjacent extrusion plates 3 are adjusted, the connecting rod 10 is extruded by rotating the threaded limiting post 12, thereby limiting the limiting cylinder 11 and the connecting rod 10, and further limiting the two adjacent extrusion plates 3.
[0030] Limiting strips 13 are symmetrically fixedly connected to both sides of the extrusion plate 3. The side wall of the limiting strip 13 is in contact with the square-shell battery cell body. The limiting strip 13 can effectively limit the lateral position of the square-shell battery cell, thereby preventing it from sliding laterally.
[0031] Two sets of limiting rods 14 are symmetrically fixedly installed on the inner wall of the fixed frame 1. Two sets of limiting holes are symmetrically opened on the side wall of the extrusion plate 3. Multiple limiting rods 14 fixedly connected to the inner wall of the fixed frame 1 slide through multiple limiting holes opened on the side wall of the extrusion plate 3. Thanks to the setting of the limiting rods 14, the sliding direction of the extrusion plate 3 can be effectively limited, and the stability of the extrusion plate 3 during sliding can be further improved.
[0032] Rubber anti-slip pads are fixedly connected to the inner walls of multiple U-shaped plates 9. The side walls of the rubber anti-slip pads are in contact with the extrusion plate 3. The anti-slip rubber pads can limit the movement of the U-shaped plates 9, so as to prevent slippage when external force is applied to the U-shaped plates 9.
[0033] Working principle
[0034] When using this square-shell battery cell restraint tray, the motor 6 is first started, which drives one of the synchronous pulleys 4 to rotate. Simultaneously, one of the synchronous pulleys 4 drives the synchronous belt 5 and another synchronous pulley 4 to rotate, which in turn drives two lead screws 2 to rotate synchronously. This causes multiple extrusion plates 3 threaded onto the rod walls of the lead screws 2 to separate synchronously and evenly, thereby increasing the distance between adjacent extrusion plates 3. Then, the square-shell battery cell to be tested is placed between two adjacent extrusion plates 3. Subsequently, the motor 6 is started in reverse, causing the two lead screws 2 to rotate in the opposite direction. This causes the multiple extrusion plates 3 to move closer to each other synchronously and extrude extrusion to the square-shell battery cell. This allows for the extrusion and restraint of square-shell battery cells of different sizes, thus greatly improving the applicability of this restraint tray.
[0035] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A square-shell battery cell restraint tray, comprising a fixing frame (1) for mounting components in the restraint tray for square-shell battery cells and a plurality of extrusion plates (3) for restraining square-shell battery cells, characterized in that: Two lead screws (2) are symmetrically mounted on the inner wall of the fixed frame (1). One end of each lead screw (2) extends to the outside of the fixed frame (1) and is fixedly sleeved with a synchronous pulley (4). A synchronous belt (5) is rotatably sleeved between the two synchronous pulleys (4). A U-shaped frame (7) is fixedly mounted on the side wall of the fixed frame (1). A motor (6) is fixedly mounted on the inner wall of the U-shaped frame (7). The end of the output shaft of the motor (6) is fixedly connected to the axis of the synchronous belt (5). Two threaded holes (8) are symmetrically opened on the sidewalls of the multiple extrusion plates (3), and the two lead screws (2) rotate through the multiple threaded holes (8) opened on the sidewalls of the multiple extrusion plates (3); The top surfaces of two adjacent extrusion plates (3) are slidably snapped with U-shaped plates (9). The two U-shaped plates (9) are respectively fixedly installed with connecting rods (10) and limiting cylinders (11) on their opposite side walls, and the connecting rods (10) are slidably inserted into the interior of the limiting cylinders (11).
2. The square-shell battery cell restraint tray according to claim 1, characterized in that: The side wall of the limiting cylinder (11) has a limiting hole, and the inside of the limiting hole is threaded with a threaded limiting post (12). The threaded limiting post (12) extends into the inside of the limiting cylinder (11) and contacts the surface of the connecting rod (10).
3. The square-shell battery cell restraint tray according to claim 1, characterized in that: Limiting strips (13) are symmetrically fixedly connected to both sides of the extrusion plate (3), and the sidewalls of the limiting strips (13) are in contact with the square-shell battery cell body.
4. The square-shell battery cell restraint tray according to claim 1, characterized in that: The inner wall of the fixed frame (1) is symmetrically fixed with two sets of limiting rods (14), and the side wall of the extrusion plate (3) is symmetrically provided with two sets of limiting holes.
5. A square-shell battery cell restraint tray according to claim 4, characterized in that: The multiple limiting rods (14) fixedly connected to the inner wall of the fixed frame (1) slide through the multiple limiting holes opened on the side wall of the extrusion plate (3).
6. A square-shell battery cell restraint tray according to claim 1, characterized in that: Rubber anti-slip pads are fixedly connected to the inner walls of multiple U-shaped plates (9), and the sidewalls of the rubber anti-slip pads are in contact with the extrusion plate (3).