Carrier for loading stacked battery pieces

Abstract

The utility model discloses a carrier for loading stacked battery pieces, which relates to the technical field of battery piece production, and comprises a loading main body, an upper clamp arranged at the top of the loading main body and a lower clamp arranged at the bottom of the loading main body, and the upper clamp and the lower clamp elastically abut against the outer side surfaces of a plurality of stacked battery pieces. The two opposite sides of the loading body are provided with opening ends, the opening ends are used for exposing all the cut surfaces of the stacked battery pieces, the stacked battery pieces are tightly attached through elastic abutting, the multiple stacked battery pieces are fixed between the upper clamp and the lower clamp in an elastic clamping mode, the side edges of the battery pieces can be exposed outside, and the battery pieces can be fixed to the upper clamp and the lower clamp in an elastic clamping mode. According to the battery piece clamping device, the cut surfaces of the side faces of the battery pieces can be conveniently subjected to a coating process, the clamped battery pieces can be stably clamped and can be overturned at any angle without falling off, gaps do not exist between the clamped battery pieces, and the unit space utilization rate is high.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cell production, in particular to a carrier for loading stacked battery cells. Background Art

[0002] In the production of battery cells, it is usually necessary to coat the cut surface of the battery cells. The carrier used to load the battery cells not only needs to expose all the cut surfaces of the battery cells, but also needs to stack the battery cells so that the light-receiving surface is not affected. In the prior art, the carrier used to load the battery cells is usually provided with a number of receiving slots, which are used to place the battery cells one by one, and expose the side that needs to be coated. However, this type of material box has many receiving slots and takes up a lot of space. In addition, during the use of the carrier, since the battery cells are not completely fastened in the receiving slots of the carrier, the exposed side of the battery cells can only be always facing upwards, which is not convenient for carrying in any direction. Moreover, since the battery cells are not completely fastened, the carrier will cause the cut surfaces of the battery cells to be uneven during transportation, thereby affecting the coating quality of the cut surfaces of the battery cells. Utility Model Content

[0003] In order to solve the above technical problems, the present invention provides a carrier for loading stacked battery cells.

[0004] The present application proposes a carrier for loading stacked battery cells, comprising: a loading body, an upper clamp arranged on the top of the loading body, and a lower clamp arranged on the bottom of the loading body, wherein the upper clamp and / or the lower clamp elastically abut against a plurality of stacked battery cells clamped therebetween, and open ends are provided on two opposite sides of the loading body, and the open ends are used to expose the cut surfaces of the stacked battery cells.

[0005] Optionally, the lower clamp includes a lifting plate, which is located inside the loading body and is slidably connected to the bottom of the loading body through a guide column. The upper surface of the lifting plate is used to support the battery cell, and one end of the guide column extends to the outside of the loading body and is connected to a limit member.

[0006] Optionally, the lower clamp also includes a load-bearing clamp arranged on one side or both sides of the lifting clamp, and the load-bearing clamp is connected to the loading body through a positioning column. The positioning column is provided with a floating spring that abuts the load-bearing clamp and the loading body, and the upper surface of the load-bearing clamp is used to support the battery cell.

[0007] Optionally, the upper clamp includes an upper clamping plate, a connecting plate and a first guide rod, the upper clamping plate is arranged inside the loading body, the connecting plate is arranged outside the loading body, the first guide rod is passed through the loading body and its two ends are respectively fixed to the connecting plate and the upper clamping plate, a pre-tightening member is provided in the middle of the connecting plate, one end of the pre-tightening member is connected to the loading body bearing, and the other end is tightly connected to the connecting plate.

[0008] Optionally, an elastic support member is further provided between the connecting plate and the upper clamping plate, and the elastic support member includes a first spring sleeved on the first guide rod, and both ends of the first spring abut between the upper clamping plate and the loading body.

[0009] Optionally, an elastic support member is further provided between the connecting plate and the upper splint, and the elastic support member includes a second guide rod, a guide sleeve and a second spring. The top end of the second guide rod is fixedly connected to the connecting plate, and the guide sleeve is sleeved on the second guide rod. An annular cavity is provided between the guide sleeve and the second guide rod. The second spring is accommodated in the annular cavity and sleeved on the outside of the second guide rod. The two ends of the second spring respectively abut against the guide sleeve and the top of the upper splint.

[0010] Optionally, the loading body includes an upper top plate and a lower bottom plate, and two side plates connecting the upper top plate and the lower bottom plate, and both side plates are provided with lifting columns.

[0011] Optionally, guide wheels are provided on both side panels.

[0012] Optionally, a card slot is provided on the upper top plate.

[0013] Optionally, a buckle is provided on the side panel.

[0014] The technical solution provided by the present invention elastically presses a plurality of stacked battery cells between an upper clamp and a lower clamp which are oppositely arranged inside a loading body. The elastic pressing makes the stacked battery cells fit tightly together, so that the stacked battery cells are fixed between the upper clamp and the lower clamp by elastic clamping. Not only can the side edges of the battery cells be completely exposed, making it convenient to implement a coating process on the cut surface of the side of the battery cells, but the elastically clamped battery cells are clamped very firmly and can be flipped at any angle without falling. There is no gap between the clamped battery cells, so more battery cells can be accommodated in a unit space, and the space utilization rate is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a structural schematic diagram of a carrier loaded with stacked battery cells proposed by the present invention;

[0017] Figure 2 This is a schematic structural diagram of the carrier proposed in the present utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the middle part of the vehicle in the present invention;

[0019] Figure 4 for Figure 3 A partial enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 5 This is a cross-sectional schematic diagram of the first elastic support member in the present utility model;

[0021] Figure 6 It is a cross-sectional schematic diagram of the second elastic support member in the utility model.

[0022] Wherein, the accompanying drawings are marked as follows:

[0023] 1. Loading body; 11. Upper top plate; 111. Card slot; 12. Lower bottom plate; 13. Side plate; 2. Upper clamp; 21. Upper splint; 22. First guide rod; 23. Connecting plate; 24. Elastic support member; 241. Second guide rod; 242. Guide sleeve; 243. Second spring; 244. First spring; 3. Lower clamp; 31. Lifting splint; 311. Guide column; 312. Limiting member; 32. Load-bearing splint; 321. Positioning column; 322. Floating spring; 4. Lifting column; 5. Guide wheel; 6. Buckle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] Since the surface recombination rate of the silicon wafer cross section formed after the cell is cut is large, it will have a negative impact on the electrical performance of the solar cell. The reduction in solar cell power generation efficiency caused by cutting will directly lead to a reduction in the power of the components made from the sliced ​​cell. Therefore, it is necessary to add a passivation layer to the cut surface of the cell after cutting. The passivation layer can effectively reduce the recombination of charge carriers, increase the minority carrier lifetime and open circuit voltage of the battery, and thus significantly improve the conversion efficiency of the solar cell.

[0027] In order to solve the problems in the prior art of cell loading carriers for coating the side edges of cell cells that cannot completely tighten the cell cells in the carriers, cannot be transported in any direction, resulting in the cell cells not being accurately fixed, the cut surfaces of the cell cells being uneven, and affecting the coating quality of the end faces of the cell cells, the present application provides a carrier for loading stacked cell cells.

[0028] A carrier for loading stacked battery cells, such as Figure 1 、 Figure 2 As shown, it includes a loading body 1 and an upper clamp 2 and a lower clamp 3 arranged opposite to each other at the top and bottom of the loading body 1. The battery cells are stacked and loaded between the upper clamp 2 and the lower clamp 3. The stacked battery cells are elastically pressed against the opposite surfaces of the upper clamp 2 and / or the lower clamp 3, so that the stacked battery cells are tightly fitted and elastically pressed between the upper clamp 2 and the lower clamp 3. Open ends are provided on two opposite sides of the loading body 1. The open ends are used to expose the cut surfaces of the stacked battery cells. The cut surfaces of the stacked battery cells are flush with one side, so that the cut surfaces of the stacked battery cells can be placed in the coating equipment for processing together, and the cut surfaces of multiple battery cells can be coated at the same time.

[0029] In some embodiments, as Figure 3 As shown, the lower clamp 3 includes a lifting clamp 31, which is slidably connected to the bottom of the loading body 1 through a guide column 311. The upper surface of the lifting clamp 31 faces the interior of the loading body 1 and is used to receive one side surface of the stacked battery cells as a bearing surface for several stacked battery cells. One end of the guide column 311 is connected to the bottom of the lifting clamp 31 arranged inside the loading body 1, and the other end is connected to a limit member 312 that passes through the loading body 1. The limit member 312 is placed at the lower end of the guide column 311, so that the end of the guide column 311 extending outside the loading body 1 can be restricted to the outside of the loading body 1 and does not separate from the loading body 1. It can also limit the lifting position of the lifting clamp 31 inside the loading body 1, and cooperate with the upper clamp 2 to pre-tighten the clamped stacked battery cells.

[0030] In some embodiments, as Figure 4As shown, the lower clamp 3 also includes a supporting clamp 32 arranged on one side or both sides of the lifting clamp 31. The supporting clamp 32 is connected to the loading body 1 through a positioning column 321, and a floating spring 322 is also sleeved on the positioning column 321. One end of the floating spring 322 is against the bottom of the supporting clamp 32, and the other end is against the loading body 1. The upper surface of the supporting clamp 32 is used to support the lower surface of the battery cell and elastically press against the lower surface of the stacked battery cells. The supporting clamp 32 and the lifting clamp 31 are both used to support the battery cells, wherein the lifting clamp 31 can lift and lower the battery cells and is used to form a height difference with the supporting surface of the supporting clamp 32, so that the mechanism for loading and unloading the battery cells in cooperation with the carrier can penetrate and remove the stacked battery cells from the space of the height difference formed between the lifting clamp 31 and the supporting clamp 32.

[0031] It should be noted that the supporting surfaces of the lifting plate 31 and the supporting plate 32 can also be coplanar to jointly support the bottom of the battery cell. It is only necessary to position the height of the lifting plate 31 to be flush with the supporting plate 32.

[0032] In some embodiments, reference Figure 3 As shown, the upper clamp 2 includes an upper clamp 21, and a plurality of first guide rods 22 slidably connected to the loading body 1, and a connecting plate 23 connected to the outer ends of the plurality of first guide outer rods. The upper clamp 21 is arranged inside the loading body 1, and the connecting plate 23 is arranged outside the loading body 1. The first guide rod 22 is passed through the loading body 1, and its two ends are respectively fixed to the connecting plate 23 and the upper clamp 21. A pre-tightening member is also provided on the connecting plate 23, one end of the pre-tightening member is connected to the bearing of the loading body 1, and the other end is tightly connected to the connecting plate 23. The tight connection can adjust the connecting plate 23 to move away from or close to the loading body 1 to adjust the distance between the upper clamp 21 and the battery cell.

[0033] Preferably, the fastening connection method includes a threaded connection or a lock connection. The threaded connection method preferably provides a hexagonal head at the top of the preloaded part, so that the preloaded part can be rotated using a power-assist tool, so that the connecting plate 23 moves up and down relative to the preloaded part, and at the same time drives the upper clamp 21 to move up and down, so as to compress or release the battery cell placed between the upper clamp 21 and the lower clamp 3, thereby completing the clamping and disassembly of the stacked battery cells.

[0034] In addition, preferably, grooves are provided on the bearing surface of the lifting clamp 31 and the pressing surface of the upper clamp 21. The grooves here do not limit the extension direction and divide the bearing surface into multiple contact surfaces. The grooves can increase the friction coefficient of the bearing surface, so that the friction force between the bearing surface of the lifting clamp 31 and the surface of the battery cell is increased, and the stacked battery cells are further stabilized between the upper clamp 2 and the lower clamp 3 to prevent the battery cells from slipping out of the carrier.

[0035] In some embodiments, as Figure 5 As shown, an elastic support member 24 is provided between the connecting plate 23 and the upper clamping plate 21. The elastic support member 24 elastically connects the connecting plate 23 and the upper clamping plate 21, and includes a first spring 244 sleeved on the first guide rod 22. The two ends of the first spring 244 are respectively pressed between the upper clamping plate 21 and the loading body 1. The first spring 244 elastically acts on the upper clamping plate 21, so that the upper clamping plate 21 can always be elastically pressed against the upper surface of the stacked battery cells.

[0036] In some embodiments, as Figure 6 As shown, an elastic support member 24 is provided between the connecting plate 23 and the upper splint 21, and the elastic support member 24 includes a second guide rod 241, a guide sleeve 242 and a second spring 243. The top end of the second guide rod 241 is fixedly connected to the connecting plate 23, and the guide sleeve 242 is sleeved on the second guide rod 241. An annular cavity is provided between the guide sleeve 242 and the second guide rod 241. The second spring 243 is accommodated in the annular cavity and sleeved on the outside of the second guide rod 241. The two ends of the second spring 243 are respectively in contact with the guide sleeve 242 and the top of the upper splint 21, so that the upper splint 21 is always elastically pressed against the upper surface of the stacked battery cells.

[0037] Specifically, the loading body 1 includes an upper top plate 11 and a lower bottom plate 12, and two side plates 13 connecting the upper top plate 11 and the lower bottom plate 12. Both side plates 13 are provided with lifting columns 4, which cooperate with the structure of the external transport carrier to support the carrier.

[0038] In addition, guide wheels 5 are provided on both side plates 13. There are two guide wheels 5, which are arranged perpendicular to the lifting column 4 and can roll with the structure of the external transport carrier so that the carrier as a whole can move thereon, and the guide wheels 5 are in rolling contact with it during transfer.

[0039] Preferably, a card slot 111 is provided on the upper top plate 11, and the card slot 111 is set to be at least two holes with inconsistent calibers and connected to each other. It should be noted that the card slot 111 can also be composed of multiple holes with different calibers, so as to cooperate with the structure of the external transport carrier to extend from the hole with a larger caliber.

[0040] In some embodiments, a buckle 6 is further provided on the side panel 13 , and the buckle 6 is engaged with the structure of the external transport carrier, and cooperates with the above-mentioned slot 111 or the lifting column 4 to further stabilize the transport carrier.

[0041] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0042] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A carrier for loading stacked battery cells, characterized in that: include: A loading body (1), an upper clamp (2) arranged on the top of the loading body (1), and a lower clamp (3) arranged on the bottom of the loading body (1), wherein the upper clamp (2) and / or the lower clamp (3) elastically abut against a plurality of stacked battery cells clamped therebetween, and open ends are provided on two opposite sides of the loading body (1), and the open ends are used to expose the cut surfaces of the stacked battery cells.

2. The carrier according to claim 1, characterized in that The lower clamp (3) comprises a lifting clamp (31), the lifting clamp (31) being located inside the loading body (1) and being slidably connected to the bottom of the loading body (1) via a guide column (311), the upper surface of the lifting clamp (31) being used to support the battery cell, and one end of the guide column (311) extending to the outside of the loading body (1) and connected to a limiting member (312).

3. The carrier according to claim 2, characterized in that: The lower clamp (3) also includes a supporting clamp (32) arranged on one side or both sides of the lifting clamp (31), and the supporting clamp (32) is connected to the loading body (1) through a positioning column (321). The positioning column (321) is provided with a floating spring (322) abutting between the supporting clamp (32) and the loading body (1), and the upper surface of the supporting clamp (32) is used to support the battery cell.

4. The carrier according to claim 1, characterized in that The upper clamp (2) includes an upper clamp (21), a connecting plate (23) and a first guide rod (22), wherein the upper clamp (21) is arranged inside the loading body (1), and the connecting plate (23) is arranged outside the loading body (1), and the first guide rod (22) is passed through the loading body (1) and its two ends are respectively fixedly connected to the connecting plate (23) and the upper clamp (21), and a pre-tightening member is provided in the middle of the connecting plate (23), one end of the pre-tightening member is connected to the bearing of the loading body (1), and the other end is tightly connected to the connecting plate (23).

5. The carrier according to claim 4, characterized in that: An elastic support member (24) is further provided between the connecting plate (23) and the upper clamping plate (21), and the elastic support member (24) comprises a first spring (244) sleeved on the first guide rod (22), with both ends of the first spring (244) abutting between the upper clamping plate (21) and the loading body (1).

6. The carrier according to claim 4, characterized in that: An elastic support member (24) is also provided between the connecting plate (23) and the upper clamping plate (21), and the elastic support member (24) includes a second guide rod (241), a guide sleeve (242) and a second spring (243). The top end of the second guide rod (241) is fixedly connected to the connecting plate (23), and the guide sleeve (242) is sleeved on the second guide rod (241). An annular cavity is provided between the guide sleeve (242) and the second guide rod (241). The second spring (243) is accommodated in the annular cavity and sleeved on the outside of the second guide rod (241). The two ends of the second spring (243) are respectively in contact with the guide sleeve (242) and the top of the upper clamping plate (21).

7. The carrier according to claim 1, characterized in that The loading body (1) comprises an upper top plate (11) and a lower bottom plate (12), and two side plates (13) connecting the upper top plate (11) and the lower bottom plate (12), and both side plates (13) are provided with material lifting columns (4).

8. The carrier according to claim 7, characterized in that: Guide wheels (5) are provided on both side plates (13).

9. The carrier according to claim 7, characterized in that: A card slot (111) is provided on the upper top plate (11).

10. The carrier according to claim 7, characterized in that: The side plate (13) is provided with a buckle (6).

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