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CN-224209756-U - Limiting jig for battery cell

CN224209756UCN 224209756 UCN224209756 UCN 224209756UCN-224209756-U

Abstract

The utility model discloses a battery cell limiting jig, which relates to the technical field of battery cell limiting and comprises a base, wherein a driving groove is formed in the center of the inside of the base, grooves are formed in two sides of the inside of the base, two grooves are formed in two sides of the driving groove, one driving assembly is arranged between the two driving grooves and used for limiting battery cells with different sizes, a plurality of limiting assemblies are arranged at two ends of the top of the base, each limiting assembly comprises a U-shaped frame, the U-shaped frame is arranged at one end of the top of the base, and fixed cylinders are fixedly arranged at the front end and the rear end of the inside of the U-shaped frame. According to the utility model, the two ends of the battery cell are respectively clamped between the arc-shaped limiting frames at the two sides, and the threaded rod rotates to drive the two connecting rods to be close to or far away from each other, so that the battery cells with different sizes can be conveniently limited, the battery cells can be conveniently and accurately positioned, the battery cells can be conveniently and subsequently processed, the position of the battery cells is prevented from being deviated, and the application range is enlarged.

Inventors

  • LIU QIANG
  • Deng Xionghua

Assignees

  • 深圳市海芯电池有限公司

Dates

Publication Date
20260508
Application Date
20250411

Claims (7)

  1. 1. The battery cell limiting jig comprises a base (1) and is characterized in that a driving groove (6) is formed in the center of the inside of the base (1), grooves (5) are formed in two sides of the inside of the base (1), and the two grooves (5) are formed in two sides of the driving groove (6); the same driving assembly (2) is arranged between the two driving grooves (6) and used for limiting the battery cores with different sizes; The utility model discloses a battery cell, including base (1), base (1) top both ends all are equipped with a plurality of spacing subassemblies (3), spacing subassembly (3) include U shaped frame (31), base (1) top one end is located to U shaped frame (31), both ends all are fixed around U shaped frame (31) inside are equipped with fixed section of thick bamboo (32), two be equipped with between fixed section of thick bamboo (32) two relative arc spacing frame (33), two arc spacing frame (33) inner wall all is fixed and is equipped with protection pad (34), and battery cell both ends centre gripping respectively between two arc spacing frames (33).
  2. 2. The battery cell limiting jig according to claim 1, wherein a telescopic rod (35) is fixedly arranged between the fixed cylinder (32) and the outer wall of the arc-shaped limiting frame (33), a spring (36) is sleeved on the telescopic rod (35), and two ends of the spring (36) are fixedly connected with the fixed cylinder (32) and the arc-shaped limiting frame (33) respectively.
  3. 3. The battery cell limiting jig according to claim 2, wherein the driving assembly (2) comprises a threaded rod (25), two ends of the threaded rod (25) are connected between two walls inside the slot (5) through bearings, and a threaded block (26) is connected to the threaded rod (25) through threads.
  4. 4. The battery cell limiting jig according to claim 3, wherein through grooves are formed in two side walls of the base (1), the through grooves are communicated with the inside of the grooves (5), extension plates (21) are fixedly arranged at the tops of the threaded blocks (26), one ends of the extension plates (21), far away from the threaded blocks (26), penetrate through the through grooves and penetrate through lifting plates (22), threaded holes distributed up and down are formed in the lifting plates (22), and bolts penetrating through the threaded holes and used for fixing the lifting plates (22) and the extension plates (21) are connected to one ends, far away from the threaded blocks (26), of the extension plates (21) through threads.
  5. 5. The battery cell limiting jig according to claim 4, wherein a fixing plate (23) is fixedly arranged at the top end of the lifting plate (22), a connecting rod (24) is fixedly arranged on one side, close to the extending plate (21), of the fixing plate (23), and one end, far away from the fixing plate (23), of the connecting rod (24) is fixedly connected with one side of the central U-shaped frame (31).
  6. 6. The battery cell limiting jig according to claim 5, wherein a positive and negative double-shaft motor (27) is fixedly arranged in the driving groove (6), and output shafts at two ends of the positive and negative double-shaft motor (27) respectively penetrate through two side walls of the driving groove (6) and are fixedly connected with one ends of two threaded rods (25).
  7. 7. The battery cell limiting jig according to claim 6, wherein a control panel (4) for controlling the positive and negative double-shaft motor (27) to work is fixedly arranged at the top of the base (1).

Description

Limiting jig for battery cell Technical Field The utility model relates to the technical field of battery cell limiting, in particular to a battery cell limiting jig. Background The cell is the most basic component of the battery and is typically an electrochemical device enclosed in a metal housing. The battery cell is a unit for storing and releasing electric energy, the chemical energy is converted into the electric energy through chemical reaction, and the battery cell is fixed by using a limiting jig in the production process, so that the battery cell is ensured to be in a correct position, and the problem that subsequent processes cannot be completed or quality problems occur due to position deviation is avoided. The battery cell limiting jig comprises a bearing seat and a pressing cover, wherein a battery cell accommodating groove and two electrode lug accommodating grooves are formed in the upper side of the bearing seat, the pressing cover is arranged on the upper side of the bearing seat, a pressing structure is arranged on the pressing cover and comprises two pressing blocks, the two pressing blocks are arranged on the lower side of the pressing cover, and the bottoms of the two pressing blocks are respectively arranged in the two electrode lug accommodating grooves. When the battery cell flattening device is used, the gland is lifted, the battery cell to be processed is placed in the battery cell accommodating groove, the two electrode lugs are respectively placed in the two electrode lug accommodating grooves, then the gland is put down, the gland is pressed downwards by using the four-column hydraulic press or other devices, the battery cell can be flattened, the battery cell can be accurately positioned in the battery cell accommodating groove through the arrangement of the battery cell accommodating groove, the battery cell is prevented from being offset, and the two pressing blocks can play a limiting role on the electrode lugs of the battery cell through the arrangement of the electrode lug accommodating groove and the two pressing blocks, so that the position of the electrode lug is accurate. However, in practical use, the device (CN 214505547U) is mainly applied to the process of flattening and shaping the cells in cooperation with large-scale equipment. In this scenario, although rigid fixation can resist huge downward pressure, the defect of fixed cell-receiving slot size leads to the inability to accommodate cells of different dimensional tolerances: 1. when the size of the battery cell is smaller, a fit clearance is generated in the rigid groove, and the battery cell is easy to shake and deviate due to the clearance in the conventional non-flattening working procedures (such as welding, assembling and detecting); 2. When the cell size is bigger, it can not be installed. Thus, the prior art lacks an effective solution for adaptive positioning of multi-sized cells under non-high voltage conditions. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides the battery cell limiting jig, two ends of a battery cell are respectively clamped between arc limiting frames on two sides, and meanwhile, the threaded rod rotates to drive the two connecting rods to be close to or far away from each other, so that the battery cells with different sizes are convenient to limit, the battery cells are convenient to accurately position, the battery cells are convenient to process subsequently, the position of the battery cells is prevented from being deviated, the application range is widened, and the problems in the background art can be effectively solved. The battery core limiting jig comprises a base, wherein a driving groove is formed in the center of the inside of the base, grooves are formed in two sides of the inside of the base, two grooves are formed in two sides of the driving groove, the same driving assembly is arranged between the two driving grooves and used for limiting battery cores of different sizes, a plurality of limiting assemblies are arranged at two ends of the top of the base, each limiting assembly comprises a U-shaped frame, the U-shaped frame is arranged at one end of the top of the base, fixing cylinders are fixedly arranged at the front end and the rear end of the inside of the U-shaped frame, two opposite arc-shaped limiting frames are arranged between the two fixing cylinders, protection pads are fixedly arranged on the inner walls of the two arc-shaped limiting frames, and two ends of each battery core are clamped between the two arc-shaped limiting frames respectively. Preferably, a telescopic rod is fixedly arranged between the fixed cylinder and the outer wall of the arc-shaped limiting frame, a spring is sleeved on the telescopic rod, two ends of the spring are fixedly connected with the fixed cylinder and the arc-shaped limiting frame respectively, and the telescopic rod and the spring are conveniently extruded by the arc-shaped