Polymer battery cell winding device

Abstract

The utility model relates to the field of polymer batteries, in particular to a polymer battery cell winding device. The utility model provides a polymer battery cell winding device which can prevent a cell from shifting, ensure proper compactness of the cell and improve the performance and safety of a battery. A polymer battery cell winding device comprises a mounting plate, a servo motor, a flat belt, a feeding roller and the like, the top of the lower side of the mounting plate is connected with the servo motor, an output shaft of the servo motor is also connected with the feeding roller, and the upper portion of the front side of the mounting plate is also rotationally connected with the feeding roller. The winding motor drives the rotating frame to rotate so as to wind the battery cell, in the winding process, the rotating roller rotates along the connecting rod, the partition plate limits the battery cell, the battery cell is prevented from shifting and deviating in the winding process, the situation that the battery cell is not tightly wound is avoided, and therefore it is ensured that the compactness of the battery cell is proper, and the winding quality is improved. And the performance and the safety of the battery are improved.

Description

Technical Field

[0001] The utility model relates to the field of polymer batteries, in particular to a polymer battery cell winding device. Background Art

[0002] Polymer battery cells, also known as lithium polymer battery cells, are a common type of lithium-ion battery that uses polymer electrolytes to achieve ion transport and generally has higher energy density, lighter weight, and thinner size.

[0003] The existing winding of polymer battery cells is to stack the positive and negative electrodes, separators and other materials in a predetermined order and manner to form a cell, and the assembled cell needs to be wound according to certain specifications and angles. During the winding process, the cell is easy to shift, resulting in loose cells, loose winding and uneven winding, which affects the performance and safety of the battery.

[0004] Therefore, it is necessary to design a polymer battery cell winding device that can prevent the cell from shifting, ensure the appropriate tightness of the cell, and improve the performance and safety of the battery. Utility Model Content

[0005] In order to overcome the shortcomings of the existing winding of polymer battery cells, during the winding process, the cells are easily displaced, resulting in loose cells, loose winding and uneven winding, which affects the performance and safety of the battery. The technical problem is: to provide a polymer battery cell winding device that can prevent the cell from shifting, ensure the appropriate tightness of the cell, and improve the performance and safety of the battery.

[0006] The technical solution is: a polymer battery cell winding device, including a mounting plate, a servo motor, a flat belt, a feed roller, a winding motor, a rotating frame, a winding mold, a baffle and a tension adjustment mechanism. A servo motor is connected to the top of the lower side of the mounting plate, and a feed roller is also connected to the output shaft of the servo motor. The upper front side of the mounting plate is also rotatably connected to the feed roller, and the left side of the feed roller is connected to a transmission wheel, and a flat belt is wound between the transmission wheels. A winding motor is connected to the middle part of the rear side of the mounting plate, and a rotating frame is connected to the output shaft of the winding motor, and a winding mold is connected to the rotating frame. A baffle is connected to the right side of the rotating frame, and two front and rear tension adjustment mechanisms for ensuring the flatness of the battery cell are rotatably provided on the right side of the mounting plate.

[0007] Furthermore, the mounting plate is L-shaped.

[0008] Furthermore, bolts are threadedly connected to the right side of the rotating frame to facilitate replacement of winding dies of different specifications.

[0009] Furthermore, the tension adjustment mechanism includes a fixed rod, a sleeve, a connecting rod, a rotating roller, a partition, a sliding ring and a first spring. The right side of the mounting plate is connected to two front and rear fixed rods, the fixed rod is rotatably connected to the sleeve, the upper right side of the sleeve is connected to the connecting rod, the left part of the connecting rod is rotatably connected to the rotating roller, the right side of the connecting rod is connected to the partition, the right part of the fixed rod is slidably connected to the sliding ring, the sliding ring is clamped with the sleeve, and the first spring is connected between the fixed rod and the adjacent sliding ring; by moving the sliding ring to the right along the fixed rod, the sliding ring is disengaged from the sleeve, the first spring is squeezed, and then the sleeve is rotated to a suitable angle, and the sliding ring is released. At this time, the first spring rebounds, the sliding ring moves to the left, and the sliding ring is clamped with the sleeve.

[0010] Furthermore, a handle is connected to the sleeve to facilitate hand-holding and adjustment of the sleeve rotation angle.

[0011] Furthermore, it also includes a flattening mechanism, which includes a fixed block, a second spring and a pressure plate. The fixed block is connected to the upper left side of the rear part of the mounting plate, the pressure plate is slidably connected to the fixed block, and the second spring is connected between the pressure plate and the fixed block; as the winding thickness of the battery cell increases, the pressure plate moves upward and the second spring is squeezed, thereby flattening the wound battery cell.

[0012] The beneficial effects of the utility model are as follows: 1. The utility model drives the rotating frame to rotate through the winding motor, thereby winding the battery cell. During the winding process, the rotating roller rotates along the connecting rod, and the partition limits the battery cell to prevent the battery cell from shifting during the winding process. At the same time, it prevents the battery cell from loosening and producing wrinkles of different sizes, and prevents the battery cell from being loosely wound, thereby ensuring the appropriate tightness of the battery cell to improve the performance and safety of the battery.

[0013] 2. The utility model contacts the battery cell through the pressure plate. As the winding thickness of the battery cell increases, the pressure plate moves upward and the second spring is squeezed, thereby flattening the wound battery cell and improving the flatness of the battery cell winding. The flat electrode sheet can reduce the deformation of the electrode sheet during the charging and discharging process of the battery, reduce the internal resistance of the battery, and thus extend the service life of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 This is a schematic diagram of a first partial three-dimensional structure of the utility model.

[0016] Figure 3 This is a schematic diagram of a second partial three-dimensional structure of the utility model.

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the tension adjustment mechanism of the utility model.

[0018] Figure 5 It is a schematic diagram of the first partial three-dimensional structure of the tension adjustment mechanism of the utility model.

[0019] Figure 6 It is a schematic diagram of a second partial three-dimensional structure of the tension adjustment mechanism of the utility model.

[0020] Figure 7 It is a three-dimensional structural schematic diagram of the flattening mechanism of the utility model.

[0021] In the above drawings: 1_mounting plate, 2_servo motor, 3_flat belt, 4_feeding roller, 5_winding motor, 6_rotating frame, 7_winding mold, 8_baffle, 9_tension adjustment mechanism, 91_fixed rod, 92_sleeve, 93_connecting rod, 94_rotating roller, 95_partition, 96_sliding ring, 97_first spring, 10_flattening mechanism, 101_fixed block, 102_second spring, 103_pressing plate. DETAILED DESCRIPTION

[0022] Although the present invention may be described with respect to a specific application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those of ordinary skill in the art will recognize that terms such as: above, below, upward, downward, etc. are used to describe the drawings and do not represent limitations on the scope of the present invention as defined by the appended claims. Any numerical designations such as: first or second are merely exemplary and are not intended to limit the scope of the present invention in any way.

[0023] A polymer battery cell winding device, such as Figure 1-Figure 6 As shown, it includes a mounting plate 1, a servo motor 2, a flat belt 3, a feed roller 4, a winding motor 5, a rotating frame 6, a winding mold 7, a baffle 8 and a tension adjustment mechanism 9. The servo motor 2 is connected to the top of the lower side of the mounting plate 1, and the feed roller 4 is also connected to the output shaft of the servo motor 2. The upper front side of the mounting plate 1 is also rotatably connected to the feed roller 4. The left side of the feed roller 4 is connected to a transmission wheel, and the flat belt 3 is wound between the transmission wheels. The middle part of the rear side of the mounting plate 1 is connected to the winding motor 5, and the rotating frame 6 is connected to the output shaft of the winding motor 5. The right side of the rotating frame 6 is connected with a bolt through a thread, and the rotating frame 6 is connected to the winding mold 7. The right part of the rotating frame 6 is connected to the baffle 8. The right side of the mounting plate 1 is rotatably provided with two front and rear tension adjustment mechanisms 9 for ensuring the flatness of the battery core.

[0024] like Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, the tension adjustment mechanism 9 includes a fixed rod 91, a sleeve 92, a connecting rod 93, a rotating roller 94, a partition 95, a sliding ring 96 and a first spring 97. The mounting plate 1 is L-shaped, and two front and rear fixed rods 91 are connected to the right side of the mounting plate 1. The fixed rod 91 is rotatably connected to the sleeve 92, and the sleeve 92 is connected to a handle for adjusting the rotation angle of the sleeve 92 by hand. The upper side of the right part of the sleeve 92 is connected to the connecting rod 93, the left part of the connecting rod 93 is rotatably connected to the rotating roller 94, the right side of the connecting rod 93 is connected to the partition 95, the right part of the fixed rod 91 is slidably connected to the sliding ring 96, the sliding ring 96 is clamped with the sleeve 92, and the first spring 97 is connected between the fixed rod 91 and the adjacent sliding ring 96.

[0025] When the polymer battery needs to be wound, the device can be used to place the battery cell on the feeding roller 4, install the winding mold 7 by bolts, and move the sliding ring 96 to the right along the fixed rod 91. The sliding ring 96 is disengaged from the sleeve 92, and the first spring 97 is squeezed. Then, the sleeve 92 is rotated to a suitable angle by the handle, and the sliding ring 96 is loosened. At this time, the first spring 97 rebounds, and the sliding ring 96 moves to the left. The sliding ring 96 is engaged with the sleeve 92, and one end of the battery cell bypasses the rotating roller 94 and contacts it, and then the battery cell is transmitted to the rotating frame 6 for winding. The lower feeding roller 4 is driven to rotate by starting the servo motor 2, and then the transmission wheel on the servo motor 2 rotates to drive The conveyor belt rotates, causing the upper feeding roller 4 to rotate, thereby feeding the material, starting the winding motor 5, and driving the rotating frame 6 to rotate through the winding motor 5, thereby winding the battery cell. During the winding process, the rotating roller 94 rotates along the connecting rod 93, and the partition 95 limits the battery cell to prevent the battery cell from shifting during the winding process. At the same time, it prevents the battery cell from loosening and producing wrinkles of different sizes, and prevents the battery cell from being loosely wound, thereby ensuring that the battery cell has a suitable tightness to improve the performance and safety of the battery. After the winding is completed, the servo motor 2 and the winding motor 5 can be turned off. When battery cells of different specifications need to be wound, winding molds 7 of different specifications can be replaced by bolts.

[0026] like Figure 1 and Figure 7 As shown, a flattening mechanism 10 is also included, and the flattening mechanism 10 includes a fixed block 101, a second spring 102 and a pressure plate 103. The fixed block 101 is connected to the upper left side of the rear of the mounting plate 1, and the pressure plate 103 is slidably connected to the fixed block 101. The second spring 102 is connected between the pressure plate 103 and the fixed block 101.

[0027] When the battery cell needs to be flattened during the winding process, the pressing plate 103 contacts the battery cell. As the thickness of the battery cell winding increases, the pressing plate 103 moves upward and the second spring 102 is squeezed, thereby flattening the wound battery cell and improving the flatness of the battery cell winding. The flat electrode sheet can reduce the deformation of the electrode sheet during the charging and discharging process of the battery and reduce the internal resistance of the battery, thereby extending the service life of the battery. After the winding is completed, the wound battery cell on the winding mold 7 is removed, the second spring 102 rebounds, and the pressing plate 103 is reset.

[0028] The above description is only an example of the implementation of the present invention and is not intended to limit the present invention. Any equivalent replacement made within the principle of the present invention shall be included in the protection scope of the present invention. The contents not elaborated in the present invention belong to the existing technology known to the technicians in this professional field.

Claims

1. A polymer battery cell winding device, characterized in that: The utility model comprises a mounting plate (1), a servo motor (2), a flat belt (3), a feeding roller (4), a winding motor (5), a rotating frame (6), a winding mold (7), a baffle (8) and a tension adjustment mechanism (9). The top of the lower side of the mounting plate (1) is connected with the servo motor (2), the output shaft of the servo motor (2) is also connected with the feeding roller (4), the upper front part of the mounting plate (1) is also rotatably connected with the feeding roller (4), the left side of the feeding roller (4) is connected with a transmission wheel, and the flat belt (3) is wound between the transmission wheels, the middle part of the rear side of the mounting plate (1) is connected with the winding motor (5), the output shaft of the winding motor (5) is connected with the rotating frame (6), the rotating frame (6) is connected with the winding mold (7), the right part of the rotating frame (6) is connected with the baffle (8), and the right side of the mounting plate (1) is rotatably provided with two front and rear tension adjustment mechanisms (9) for ensuring the flatness of the battery core.

2. A polymer battery cell winding device as claimed in claim 1, characterized in that: The mounting plate (1) is L-shaped.

3. A polymer battery cell winding device as claimed in claim 2, characterized in that: The right side of the rotating frame (6) is connected with bolts through threads, so as to facilitate the replacement of winding dies (7) of different specifications.

4. A polymer battery cell winding device as claimed in claim 3, characterized in that: The tension adjustment mechanism (9) comprises a fixed rod (91), a sleeve (92), a connecting rod (93), a rotating roller (94), a partition (95), a sliding ring (96) and a first spring (97). The right side of the mounting plate (1) is connected to two front and rear fixed rods (91), the fixed rod (91) is rotatably connected to the sleeve (92), the upper side of the right part of the sleeve (92) is connected to the connecting rod (93), the left part of the connecting rod (93) is rotatably connected to the rotating roller (94), the right side of the connecting rod (93) is connected to the partition (95), and the right part of the fixed rod (91) is connected to the rotating roller (94). The sliding rings (96) are all connected in a sliding manner, and the sliding rings (96) are all clamped with the sleeve (92). A first spring (97) is connected between the fixed rod (91) and the adjacent sliding ring (96). By moving the sliding ring (96) rightward along the fixed rod (91), the sliding ring (96) is separated from the sleeve (92), the first spring (97) is squeezed, and then the sleeve (92) is rotated to a suitable angle, and the sliding ring (96) is released. At this time, the first spring (97) rebounds, the sliding ring (96) moves leftward, and the sliding ring (96) is clamped with the sleeve (92).

5. A polymer battery cell winding device as claimed in claim 4, characterized in that: The sleeve (92) is connected with a handle, which is convenient for adjusting the rotation angle of the sleeve (92) by hand.

6. A polymer battery cell winding device as claimed in claim 5, characterized in that: The invention also comprises a flattening mechanism (10), the flattening mechanism (10) comprising a fixed block (101), a second spring (102) and a pressing plate (103); the fixed block (101) is connected to the upper left side of the rear part of the mounting plate (1); the pressing plate (103) is slidably connected to the fixed block (101); the second spring (102) is connected between the pressing plate (103) and the fixed block (101); as the thickness of the battery cell increases, the pressing plate (103) moves upward, the second spring (102) is squeezed, and the wound battery cell is flattened.

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