Battery piece turning device

Abstract

The utility model relates to a battery piece turning device which comprises two rotating discs, the two rotating discs are oppositely arranged in the axial direction, the centers of the two rotating discs are connected through a rotating shaft, and a plurality of inserting grooves are evenly distributed in each rotating disc in the circumferential direction; the mounting assembly comprises a plurality of mounting structures, and at least one pair of mounting structures are arranged on the portions, on the two sides of each inserting groove, of the rotating disc; the buffer assembly comprises a plurality of buffer sleeves, the buffer sleeves are detachably matched with the mounting structure, and when the buffer sleeves are mounted on the mounting structure, the buffer sleeves partially coincide with the slots in the axial direction. The piece turning device can be compatible with battery pieces with different thicknesses, can ensure that the shaking gap of each specification of battery pieces is small, can reduce the shaking degree of the battery pieces in the piece turning process under the condition of maintaining the original piece turning speed, and reduces the fragmentation rate of the battery pieces while maintaining the efficient piece turning efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic cell production, and in particular to a cell flipping device. Background Art

[0002] The preparation of crystalline silicon solar cells generally requires processes such as texturing, diffusion, coating, screen printing, and sintering. In the screen printing process, the back electrode, back electric field, and positive electrode of the solar cell need to be printed, which involves operating on both sides of the cell, so a flipper is needed to flip the solar cell.

[0003] At present, with the substantial increase in the production capacity of the printing line, the speed of the flipper is getting faster and faster, so the battery cells are increasingly fragmented at the flipper, seriously affecting the company's benefits. The existing flipper can only reduce the fragments by changing and optimizing the action and speed of the flipper, but the effect is not obvious enough, and it also reduces the flipping efficiency, making it difficult to match the high-speed operation of the printing line. Utility Model Content

[0004] Based on this, the utility model provides a battery cell flipping device, which can effectively reduce the fragmentation rate of the battery cell while ensuring the flipping efficiency.

[0005] The utility model provides a battery cell flipping device, comprising:

[0006] Two rotating disks, the two rotating disks are arranged opposite to each other in the axial direction, and the centers of the two rotating disks are connected by a rotating shaft, and each rotating disk has a plurality of slots evenly distributed in the circumferential direction;

[0007] The mounting assembly comprises a plurality of mounting structures, and the rotating disk is provided with at least one pair of the mounting structures on both sides of each of the slots;

[0008] The buffer assembly comprises a plurality of buffer sleeves, wherein the buffer sleeves are detachably matched with the mounting structure, and when the buffer sleeves are mounted on the mounting structure, the buffer sleeves are partially overlapped with the slots in the axial direction.

[0009] In one embodiment, at least two pairs of the mounting structures are disposed on both sides of each slot, and at least one pair of the mounting structures is disposed close to the open side of the slot, and at least one pair of the mounting structures is disposed close to the closed side of the slot.

[0010] In one embodiment, each of the mounting structures disposed on the rotating disk near the opening side of the slot is located on the same circumference;

[0011] The mounting structures arranged on the closed side of the rotating disk close to the slot are all located on the same circumference.

[0012] In one embodiment, when three or more pairs of the mounting structures are disposed on both sides of each of the slots, each pair of the mounting structures are arranged at equal intervals along the length direction of the slot.

[0013] In one embodiment, the positions of the mounting structures on the two turntables are the same.

[0014] In one embodiment, the diameters of the buffer sleeves on the mounting structures mounted at the same position on the two rotating disks are the same.

[0015] In one embodiment, the diameters of the buffer sleeves installed on the mounting structure on the same side of the same slot are the same.

[0016] In one embodiment, the mounting structure includes a mounting shaft fixedly connected to the turntable, and the buffer sleeve is detachably mounted on the mounting shaft.

[0017] In one embodiment, the buffer sleeve is made of flexible material.

[0018] In one of the embodiments, the buffer sleeve is made of polyurethane material.

[0019] In one embodiment, the battery cell flipping device further includes a driving machine connected to the end of the rotating shaft and a controller electrically connected to the driving machine and controlling the operation of the driving machine.

[0020] The battery flipping device provided by the utility model is provided with at least one pair of mounting structures on both sides of the slot, and the buffer sleeve is provided to be detachably matched with the mounting structure, so that the buffer sleeves on the mounting structures on both sides of the slot can be replaced according to the thickness of the battery, and the width of the inserting channel formed between the two buffer sleeves can be changed by replacing the buffer sleeves with different diameters, so that the flipping device can be compatible with battery slices of different thicknesses, and the shaking gap of each specification of battery slice can be ensured to be small, and the shaking degree of the battery slice in the flipping process can also be reduced while maintaining the original flipping speed, and the fragmentation rate of the battery slice is reduced while maintaining the efficient flipping efficiency. Moreover, the buffer sleeve can also prevent the battery slice from directly contacting the side wall of the slot, and can more effectively prevent the battery slice from being damaged by scratches and shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a battery cell flipping device in one embodiment;

[0022] Figure 2 A top view of a battery cell flipping device in one embodiment;

[0023] Figure 3FIG. 1 is a side view of a battery cell flipping device in one embodiment.

[0024] The reference numerals in the drawings of the specification include: a turntable 1 , a rotating shaft 2 , a slot 101 , a mounting structure 3 , and a buffer sleeve 4 . DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0026] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention.

[0027] The structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0028] The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential" and the like in this specification are based on the directions or positional relationships shown in the drawings and are only for the convenience of simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] The width of the slot of an existing flipper is usually fixed. In order to enable the flipper to perform flipping operations on battery cells of different thicknesses, the width of the slot is usually required to be compatible with battery cells of thicker thickness, so the width of the slot is set to be relatively large. This will result in a large gap between the battery cell of smaller thickness and the side wall of the slot after the battery cell is inserted into the slot. This gap can easily cause the battery cell to shake greatly during the flipping process, resulting in battery cell fragments. In addition, during the flipping process, the battery cell will come into direct hard contact with the side wall of the slot, which can also easily cause the battery cell to fragment.

[0030] In view of this, an embodiment of the utility model provides a battery cell flipping device, which includes:

[0031] Two turntables 1, the two turntables 1 are arranged opposite to each other in the axial direction, and the centers of the two turntables 1 are connected by a rotating shaft 2, and each turntable 1 has a plurality of slots 101 evenly distributed in the circumferential direction;

[0032] The mounting assembly includes a plurality of mounting structures 3, and the turntable 1 is provided with at least one pair of mounting structures 3 on both sides of each slot 101;

[0033] The buffer assembly includes a plurality of buffer sleeves 4. The buffer sleeves 4 are detachably matched with the mounting structure 3. When the buffer sleeves 4 are mounted on the mounting structure 3, the buffer sleeves 4 partially overlap with the slots 101 in the axial direction.

[0034] The battery cell flipping device provided by the above embodiment of the utility model is provided with at least one pair of mounting structures 3 on both sides of the slot 101, and the buffer sleeve 4 is provided to be detachably matched with the mounting structure 3, so that the buffer sleeve 4 on the mounting structure 3 on both sides of the slot 101 can be replaced according to the thickness of the battery cell. By replacing the buffer sleeves 4 with different diameters, the width of the inserting channel formed between the buffer sleeves 4 on both sides can be changed, so that the flipping device can be compatible with battery cells of different thicknesses, and the shaking gap of each specification of battery cell can be ensured to be small. Under the condition of maintaining the original flipping speed, the shaking degree of the battery cell during the flipping process can also be reduced, and the high flipping efficiency can be maintained while reducing the fragmentation rate of the battery cell. Moreover, the buffer sleeve 4 can also prevent the battery cell from directly contacting the side wall of the slot 101, and can more effectively prevent the battery cell from being damaged by scratches and shaking.

[0035] The battery cell flipping device provided by the embodiment of the utility model is described below with reference to the accompanying drawings.

[0036] See also Figure 1 , to understand the battery cell flipping device. Figure 1 Schematic diagram of the three-dimensional structure of the battery cell flipping device in some embodiments. The battery cell flipping device includes two rotating disks 1, a mounting assembly and a buffer assembly.

[0037] In this embodiment, the two turntables 1 have the same structure, and the structure of only one of the turntables 1 is used as an example for exemplary description below.

[0038] See also Figure 1 The turntable 1 is a circular disk structure, and a plurality of slots 101 are evenly distributed along the circumferential direction on the turntable 1. The slots 101 are used to insert the battery cells, so as to drive the battery cells to flip through the turntable 1. The number of the slots 101 is not limited, for example, Figure 1 The embodiment in which the turntable 1 has 12 slots 101 is shown for example only. The 12 slots 101 divide the tray into 12 fan-shaped flip plates. When the battery cells are inserted into the slots 101, the turntable 1 rotates to drive the battery cells to flip through the fan-shaped flip plates.

[0039] More specifically, see Figure 1 In the present embodiment, each slot 101 is an open slot extending from the outer edge of the turntable 1 to the inner side of the turntable 1, and the extension direction of the slot 101 is the diameter direction of the turntable 1, so that the battery cell can be horizontally inserted into the slot 101 from the open side of the slot 101, that is, the outer edge of the turntable 1.

[0040] See also Figure 1 and Figure 2 The centers of the two turntables 1 are connected by a rotating shaft 2 to ensure that the two turntables 1 are connected to form a whole. In this way, when the rotating shaft 2 is rotatably installed on the external structure, the two turntables 1 can be driven to rotate by the rotating shaft 2, providing a basis for the turntable 1 to drive the battery cell to flip over.

[0041] For further information, see Figure 1 In this embodiment, the two turntables 1 are arranged opposite to each other along the axial direction on the rotating shaft 2, that is, the two turntables 1 are parallel to each other, and the positions of the slots 101 on the two turntables 1 are the same, so that the battery cells can be inserted into the slots 101 at the same position on the two turntables 1 at the same time, and the two turntables 1 support the battery cells to drive the battery cells to flip.

[0042] In this embodiment, the buffer assembly includes a plurality of buffer sleeves 4, and the mounting assembly includes a plurality of mounting structures 3. The mounting structures 3 are arranged on the turntable 1. The buffer sleeves 4 and the mounting structures 3 are detachably matched, so that the buffer sleeves 4 can be installed on the turntable 1 through the mounting structures 3, and are combined at the slot 101 to form an insertion channel for inserting the battery cell. The width of the insertion channel can also be adjusted according to the thickness of the battery cell, so that the battery cell flipping device can be better compatible with the production of battery cells of different sizes and reduce the fragmentation rate.

[0043] Specifically, in this embodiment, the turntable 1 is provided with at least one pair of mounting structures 3 on both sides of each slot 101, so that at least one pair of buffer sleeves 4 can be provided on both sides of each slot 101, so that the front and back sides of the battery cell inserted into each slot 101 can be supported by the buffer sleeves 4, which can not only reduce the shaking gap of the battery cell, but also avoid direct contact between the battery cell and the turntable 1, thereby reducing the fragmentation rate of the battery cell. It should be noted that the number of each pair of mounting structures 3 is two, which are relatively arranged on both sides of the slot 101.

[0044] Furthermore, in this embodiment, at least two pairs of mounting structures 3 are provided on both sides of each slot 101. For example, Figure 1The embodiment in which two pairs of mounting structures 3 are arranged on both sides of the slot 101 is exemplarily shown. Of course, in other embodiments, the number of mounting structures 3 corresponding to each slot 101 can also be set to be more, for example, three pairs, four pairs, five pairs, etc. In this way, by supporting the battery cells with two or more pairs of buffer sleeves 4, the anti-shaking effect on the battery cells is better, and the fragmentation rate of the battery cells can be further reduced.

[0045] For further information, see Figure 1 When the number of mounting structures 3 corresponding to each slot 101 is two pairs or more, at least one pair of mounting structures 3 is arranged close to the open side of the slot 101, and at least one pair of mounting structures 3 is arranged close to the closed side of the slot 101. The open side of the slot 101 can be understood as the side of the slot 101 close to the outer edge of the turntable 1, and the closed side of the slot 101 can be understood as the side of the slot 101 close to the shaft 2. In this way, at least two pairs of buffer sleeves 4 can support the battery cell at the inner and outer sides of the battery cell, so that the battery cell is suspended in the slot 101, avoiding direct contact between the battery cell and the turntable 1, and reducing the fragmentation rate when the battery cell is flipped.

[0046] See also Figure 1 In this embodiment, the mounting structures 3 arranged on the open side of the turntable 1 close to the slot 101 are all located on the same circumference; the mounting structures 3 arranged on the closed side of the turntable 1 close to the slot 101 are all located on the same circumference. The aforementioned circumference is a non-solid structure, which is a reference trajectory circle with the center of the turntable 1 as the center. Such a setting can ensure that the distribution positions of the mounting structures 3 corresponding to each slot 101 are the same, and correspondingly, the distribution positions of the buffer sleeves 4 are also the same, thereby ensuring that the flipping effects of different slots 101 are consistent.

[0047] Furthermore, when the number of mounting structures 3 corresponding to both sides of each slot 101 is three pairs or more, each pair of mounting structures 3 is arranged at equal intervals along the length direction of the slot 101, so that each mounting structure 3 is evenly arranged. In this way, each buffer sleeve 4 can support the battery cell at the length equalization point of the battery cell, which can further enhance the supporting effect on the battery cell and reduce the fragmentation rate of the battery cell.

[0048] Furthermore, in this embodiment, the positions of the mounting structures 3 on the two turntables 1 are the same, and such an arrangement is provided to ensure the distribution consistency of the buffer sleeves 4 on the two turntables 1 and ensure the flipping effect of the battery cells.

[0049] See also Figure 1In a specific example, the mounting structure 3 is a mounting shaft fixedly connected to the turntable 1, and the buffer sleeve 4 is a circular wheel sleeve that can be sleeved on the mounting shaft. In this way, the disassembly and installation of the buffer sleeve 4 are relatively convenient, and the buffer sleeve 4 is easy to replace according to the thickness of the battery cell.

[0050] Specifically, in this embodiment, each buffer sleeve 4 has multiple outer diameter specifications, and each buffer sleeve 4 of each diameter specification has multiple buffer sleeves 4, and each specification of the buffer sleeve 4 satisfies: when the buffer sleeve 4 is installed on the mounting structure 3, as shown in FIG. Figure 3 As shown, in the axial direction, the buffer sleeve 4 partially overlaps with the slot 101. That is, when the buffer sleeve 4 is installed on the mounting shaft, the buffer sleeve 4 protrudes from the slot 101, ensuring that the battery cell can be supported on the buffer sleeve 4 after being inserted into the slot 101.

[0051] In this embodiment, the buffer sleeves 4 of different outer diameters can be combined, that is, any two buffer sleeves 4 of the same or different diameters can form a group and be installed on a pair of mounting shafts. For example, when the thickness of the battery sheet is small and the width of the inserting channel needs to be reduced, one or two buffer sleeves 4 in the same group of buffer sleeves 4 can be replaced with buffer sleeves 4 with a larger outer diameter; conversely, when the thickness of the battery sheet is large and the width of the inserting channel needs to be increased, one or two buffer sleeves 4 in the same group of buffer sleeves 4 can be replaced with buffer sleeves 4 with a smaller outer diameter.

[0052] Furthermore, in this embodiment, the diameters of the buffer sleeves 4 on the mounting structures 3 mounted at the same position on the two rotating disks 1 are the same. In this way, the buffer sleeves 4 at the corresponding positions of the two rotating disks 1 can be ensured to be the same, which facilitates the insertion of the battery cell into the slot 101.

[0053] Furthermore, in this embodiment, the diameters of the buffer sleeves 4 installed on the mounting structure 3 on the same side of the same slot 101 are the same. In this way, it can be ensured that the insertion channel formed by the combination of the buffer sleeves 4 of the same slot 101 remains straight and has the same width, which facilitates the insertion of the battery cell into the slot 101.

[0054] In this embodiment, the buffer sleeve 4 is made of a flexible material, which can have a greater buffering effect on the battery cell and reduce the probability of the battery cell being broken into pieces during the flipping process.

[0055] Specifically, in the present embodiment, the buffer sleeve 4 may be made of polyurethane material, but is not limited thereto. For example, the buffer sleeve 4 may also be made of silicone, rubber or other materials.

[0056] The battery cell flipping device also includes a driving machine connected to the end of the rotating shaft 2 and a controller electrically connected to the driving machine and controlling the operation of the driving machine. The controller can control the working state of the driving machine, and the driving machine drives the turntable to rotate, thereby realizing the flipping of the battery cell. The driving machine can be a motor.

[0057] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A battery cell flipping device, characterized in that: include: Two rotating disks (1), the two rotating disks (1) are arranged opposite to each other in the axial direction, and the centers of the two rotating disks (1) are connected via a rotating shaft (2), and each rotating disk (1) has a plurality of slots (101) evenly distributed in the circumferential direction; The mounting assembly comprises a plurality of mounting structures (3), wherein the rotating disk (1) is provided with at least one pair of the mounting structures (3) on both sides of each of the slots (101); The buffer assembly comprises a plurality of buffer sleeves (4), wherein the buffer sleeves (4) are detachably matched with the mounting structure (3), and when the buffer sleeves (4) are mounted on the mounting structure (3), in the axial direction, the buffer sleeves (4) and the slots (101) are partially overlapped.

2. The battery cell flipping device according to claim 1, characterized in that: At least two pairs of the mounting structures (3) are arranged on both sides of each slot (101), and at least one pair of the mounting structures (3) is arranged close to the open side of the slot (101), and at least one pair of the mounting structures (3) is arranged close to the closed side of the slot (101).

3. The battery cell flipping device according to claim 2, characterized in that: The mounting structures (3) arranged on the rotating disk (1) near the opening side of the slot (101) are located on the same circumference; The mounting structures (3) arranged on the closed side of the rotating disk (1) close to the slot (101) are located on the same circumference.

4. The battery cell flipping device according to claim 2 or 3, characterized in that: When three or more pairs of the mounting structures (3) are provided on both sides of the slot (101), each pair of the mounting structures (3) is arranged at equal intervals along the length direction of the slot (101).

5. The battery cell flipping device according to claim 1, characterized in that: The positions of the mounting structures (3) on the two rotating disks (1) are the same.

6. The battery cell flipping device according to claim 5, characterized in that: The diameters of the buffer sleeves (4) on the mounting structure (3) mounted at the same position of the two rotating disks (1) are the same.

7. The battery cell flipping device according to claim 6, characterized in that: The diameters of the buffer sleeves (4) mounted on the mounting structure (3) on the same side of the same slot (101) are the same.

8. The battery cell flipping device according to claim 1, characterized in that: The mounting structure (3) comprises a mounting shaft fixedly connected to the rotating disk (1), and the buffer sleeve (4) is detachably sleeved on the mounting shaft.

9. The battery cell flipping device according to claim 1, characterized in that: The buffer sleeve (4) is made of flexible material.

10. The battery cell flipping device according to claim 1, characterized in that: The battery cell flipping device also includes a driving machine connected to the end of the rotating shaft (2) and a controller electrically connected to the driving machine and controlling the operation of the driving machine.

Images