A graphite frame capable of improving intra-chip chromatic aberration

Abstract

The present invention discloses a graphite frame capable of improving the color difference within a cell, comprising a graphite frame, a plurality of neatly arranged workstation frames are arranged inside the graphite frame, a placement groove is provided on the workstation frame, a placement frame is fixedly connected to the inner walls around the placement groove, a protective frame is fixedly connected to the placement frame, and a gap for placing a battery cell exists between the inner ring of the protective frame and the inner ring of the placement frame, and the gap is tilted, and the tilt angle is 25°. The present invention arranges a protective frame on the placement frame, and the inner ring of the protective frame is tilted. When the battery cell is fixed on the placement frame, the distance between the inner ring side of the protective frame and the battery cell is increased, and the contact area between the battery cell and the protective frame is reduced, so as to achieve the effect of improving the color difference. A movable graphite pad is arranged in the protective frame, and the graphite pad is driven by a driving mechanism to slide and move away from the battery cell, so as to achieve the effect of further increasing the distance between the inner ring side of the protective frame and the battery cell, thereby achieving the effect of fully improving the color difference.

Description

Technical Field

[0001] The invention belongs to the technical field of solar photovoltaic cells, and in particular relates to a graphite frame capable of improving chromatic aberration within a cell. Background Art

[0002] When the battery cell uses a conventional graphite frame during the production process, there will be differences in the appearance of the product near the graphite frame around the battery cell and near the frame. The graphite frame will absorb the silicon nitride during the reaction and affect the uniformity of silicon nitride deposition on the product surface. The battery cell near the graphite frame will have less deposition and a darker color. Summary of the invention

[0003] The object of the present invention is to provide a graphite frame which reduces the contact area between the graphite frame and the battery cell, so as to solve the problems mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a graphite frame capable of improving the chromatic aberration within a wafer, comprising a graphite frame, a plurality of neatly arranged workstation frames are arranged inside the graphite frame, a placement groove is opened on the workstation frame, a placement frame is fixedly connected to the inner walls around the placement groove, a protective frame is fixedly connected to the placement frame, a gap for placing battery cells exists between the inner circle of the protective frame and the inner circle of the placement frame, and the protective frame is inclined at an angle of 25°.

[0005] A square storage groove is provided in the workstation frame, and a sliding hole connected with the storage groove is provided on one side of the protection frame close to the placement frame.

[0006] Four L-shaped graphite pads of the same specifications are slidably arranged in the receiving groove, wherein one side of the graphite pad extending out of the receiving groove is inclined and has the same inclination angle as the inner circle of the protective frame, and the four graphite pads are combined into a square.

[0007] The four corners of the workstation frame are all provided with connection holes, and a fixing box is installed in the connection holes. A driving mechanism is arranged in the fixing box, and the driving mechanism is used to drive the graphite pad to move.

[0008] The driving mechanism includes a rotating shaft rotatably arranged in a fixed box, and the outer side wall of the rotating shaft is provided with a plurality of staggered first arc-shaped slots and second arc-shaped slots, and each graphite pad is fixedly connected to a connecting rod at one end away from the sliding hole, and a guide hole for the connecting rod to slide is provided between the fixed box and the work station frame, and a spherical adjustment block is fixedly connected to one end of the connecting rod extending into the fixed box, and a plurality of springs fixed to the work station frame are fixedly connected to one end of the graphite pad close to the fixed box.

[0009] The depth of the first arc-shaped slot is smaller than the depth of the second arc-shaped slot. When the graphite pad is engaged with the first arc-shaped slot, the inclined surface of the graphite pad is flush with the slide-out hole.

[0010] In a preferred embodiment, the diameter of the adjusting block is larger than the diameter of the guide hole.

[0011] In a preferred embodiment, a plurality of mounting plates are fixedly connected to the outer side wall of the graphite frame.

[0012] In a preferred embodiment, a rounded corner is provided at the notch of the second arc-shaped slot.

[0013] In a preferred embodiment, a cover plate located at the rear side of the graphite frame is provided on one side of the fixing box, a plurality of fastening holes are provided on the cover plate, and screws for fixing the cover plate and the fixing box are installed in the fastening holes.

[0014] In a preferred embodiment, a guide groove is provided on the inner wall of the receiving groove, and a guide plate which is plugged and movable in the guide groove is fixedly connected to the side of the graphite pad.

[0015] In a preferred embodiment, a handle is fixedly connected to one end of the rotating shaft extending out of the fixed box.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention arranges a protective frame on the placement frame, and the inner circle of the protective frame is arranged to be inclined. When the battery cell is fixed on the placement frame, the distance between the inner circle side of the protective frame and the battery cell is increased, and the contact area between the battery cell and the protective frame is reduced, so as to avoid the graphite frame absorbing silicon nitride in the reaction process and causing color difference in the battery cell, thereby achieving the effect of improving color difference.

[0018] The present invention arranges a movable graphite pad in the protection frame, and drives the graphite pad to slide and move away from the battery cell through a driving mechanism, so as to further increase the distance between the inner circle side of the protection frame and the battery cell, thereby achieving the effect of fully improving the color difference. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the rear side of the present invention as a whole;

[0022] Figure 3 For the present invention Figure 1 Structural cutaway diagram of the middle workstation frame;

[0023] Figure 4 For the present invention Figure 1A schematic diagram of the structure of the middle driving mechanism;

[0024] Figure 5 For the present invention Figure 4 The enlarged view of point A in the middle;

[0025] Figure 6 For the present invention Figure 2 A schematic diagram of the structure of the fixed box;

[0026] In the figure: 1. graphite frame; 2. storage slot; 3. placement frame; 4. graphite pad; 5. protection frame; 6. placement slot; 7. connection hole; 8. fixing box; 9. work station frame; 10. mounting plate; 11. handle; 12. spring; 13. rotating shaft; 14. adjustment block; 15. first arc slot; 16. second arc slot; 161. fillet; 17. connecting rod; 18. guide slot; 19. guide plate; 20. fastening hole; 21. screw; 22. cover plate. DETAILED DESCRIPTION

[0027] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0028] Example

[0029] See also Figure 1-6 The present invention provides the following technical solutions: A graphite frame capable of improving the chromatic aberration within a cell, comprising a graphite frame 1, wherein a plurality of neatly arranged workstation frames 9 are arranged inside the graphite frame 1, a placement groove 6 is provided on the workstation frame 9, a placement frame 3 is fixedly connected to the inner wall around the placement groove 6, a protective frame 5 is fixedly connected to the placement frame 3, a gap for placing a cell is present between the inner circle of the protective frame 5 and the inner circle of the placement frame 3, and the protective frame 5 is inclined at an angle of 25°.

[0030] A square receiving groove 2 is provided in the work station frame 9 , and a sliding hole communicating with the receiving groove 2 is provided on one side of the protection frame 5 close to the placement frame 3 .

[0031] Four L-shaped graphite pads 4 of the same specifications are slidably arranged in the receiving groove 2, wherein one side of the graphite pad 4 extending out of the receiving groove 2 is inclined and has the same inclination angle as the inner circle of the protective frame 5, and the four graphite pads 4 are combined into a square.

[0032] The four corners of the station frame 9 are all provided with connection holes 7 , and a fixing box 8 is installed in the connection hole 7 . A driving mechanism is arranged in the fixing box 8 , and the driving mechanism is used to drive the graphite pad 4 to move.

[0033] The driving mechanism includes a rotating shaft 13 rotatably arranged in the fixed box 8, and the outer wall of the rotating shaft 13 is provided with a plurality of staggered first arc grooves 15 and second arc grooves 16. A connecting rod 17 is fixedly connected to the end of each graphite pad 4 away from the slide-out hole. A guide hole for the connecting rod 17 to slide is provided between the fixed box 8 and the work station frame 9. A spherical adjusting block 14 is fixedly connected to the end of the connecting rod 17 extending into the fixed box 8, and a plurality of springs 12 fixed to the work station frame 9 are fixedly connected to the end of the graphite pad 4 close to the fixed box 8.

[0034] The depth of the first arc-shaped slot 15 is smaller than the depth of the second arc-shaped slot 16 . When the graphite pad 4 is engaged with the first arc-shaped slot 15 , the inclined surface of the graphite pad 4 is flush with the slide-out hole.

[0035] In this embodiment: by setting a protective frame 5 on the placement frame 3, the inner circle of the protective frame 5 is inclined, and the inclination angle is 25°. When the battery cell is fixed on the placement frame 3, the distance between the inner circle side of the protective frame 5 and the battery cell is increased, and the contact area between the battery cell and the protective frame 5 is reduced, so as to avoid the graphite frame 1 and the station frame 9 absorbing silicon nitride in the reaction process and causing color difference in the battery cell, so as to achieve the effect of improving the color difference. By setting a movable graphite pad 4 in the protective frame 5, the driving mechanism drives the graphite pad 4 to slide and move away from the battery cell, so as to further increase the distance between the inner circle side of the protective frame 5 and the battery cell. The effect of the distance between the cell sheets is achieved, thereby achieving the effect of fully improving the chromatic aberration. During operation, the rotating shaft 13 is rotated, and the rotating shaft 13 rotates to align the first arc-shaped slot 15 with the connecting rod 17. At this time, the elastic force of the spring 12 pulls the graphite pad 4 and the connecting rod 17 to slide, so that the adjusting block 14 is stuck in the first arc-shaped slot 15. At this time, the inclined surface of the graphite pad 4 is flush with the slide-out hole, and the rotating shaft 13 is continued to be rotated to make the second arc-shaped slot 16 engage with the adjusting block 14 on the connecting rod 17. At this time, the inclined surface of the graphite pad 4 will penetrate into the storage slot 2, increasing the distance between the inner ring side of the protective frame 5 and the battery sheet.

[0036] Specifically, the diameter of the adjusting block 14 is larger than the diameter of the guide hole; the guide hole guides and supports the connecting rod 17 and also serves as a limit for the adjusting block 14 .

[0037] Specifically, a plurality of mounting plates 10 are fixedly connected to the outer side wall of the graphite frame 1 ; the graphite frame 1 is installed outside through the plurality of mounting plates 10 , so as to achieve the effect of being easy to use.

[0038] Specifically, a rounded corner 161 is provided at the notch of the second arc-shaped slot 16 ; the rounded corner 161 has a buffering and smoothing effect, preventing the adjustment block 14 from being stuck with the deeper second arc-shaped slot 16 , thereby facilitating the movement of the rotating shaft 13 .

[0039] Specifically, a cover plate 22 located on the rear side of the graphite frame 1 is provided on one side of the fixing box 8, and a plurality of fastening holes 20 are opened on the cover plate 22. Screws 21 for fixing the cover plate 22 and the fixing box 8 are installed in the fastening holes 20; when it is necessary to repair and inspect the structure in the fixing box 8, the plurality of screws 21 can be removed from the fastening holes 20, so as to achieve the effect of easy disassembly.

[0040] Specifically, a guide groove 18 is opened on the inner wall of the storage groove 2, and a guide plate 19 is fixedly connected to the side of the graphite pad 4 and is plugged into and movable with the guide groove 18; when the L-shaped graphite pad 4 slides, it can slide along the guide groove 18 and the guide plate 19 to achieve a stable sliding effect.

[0041] Specifically, one end of the rotating shaft 13 extending out of the fixed box 8 is fixedly connected to the handle 11; when operating the rotating shaft 13, the handle 11 can be used to rotate it, so as to achieve the effect of easy use.

[0042] In this embodiment, a plurality of workstation frames 9 in the graphite frame 1 are arranged neatly. Figure 4 It can be seen that the driving mechanism in the same fixed box 8 can drive the multiple graphite pads 4 outside it to slide, thereby achieving the effect of easy use.

[0043] The working principle and use process of the present invention are as follows: by setting a protective frame 5 on the placement frame 3, the inner circle of the protective frame 5 is tilted, and the tilt angle is 25°. When the battery cell is fixed on the placement frame 3, the distance between the inner circle side of the protective frame 5 and the battery cell is increased, and the contact area between the battery cell and the protective frame 5 is reduced, so as to avoid the graphite frame 1 and the station frame 9 absorbing silicon nitride in the reaction process and causing color difference in the battery cell, thereby achieving the effect of improving the color difference. By setting a movable graphite pad 4 in the protective frame 5, the graphite pad 4 is driven by the driving mechanism to slide and move away from the battery cell, so as to further increase the distance between the inner circle side of the protective frame 5 and the battery cell, thereby achieving the effect of fully improving the color difference. During operation, the rotating shaft 13 is rotated, and the rotating shaft 13 rotates so that the first arc-shaped slot 15 is aligned with the connecting rod 17. At this time, the spring The elastic force of the spring 12 pulls the graphite pad 4 and the connecting rod 17 to slide, so that the adjusting block 14 is stuck in the first arc groove 15. At this time, the inclined surface of the graphite pad 4 is flush with the slide-out hole. Continue to rotate the rotating shaft 13 so that the second arc groove 16 is engaged with the adjusting block 14 on the connecting rod 17. At this time, the inclined surface of the graphite pad 4 will penetrate into the storage groove 2, increasing the distance between the inner ring side of the protective frame 5 and the battery cell. The rounded corner 161 has a buffering and smoothing effect, avoiding the adjustment block 14 from being stuck with the deeper second arc groove 16, thereby facilitating the movement of the rotating shaft 13. When it is necessary to repair and inspect the structure in the fixed box 8, multiple screws 21 can be removed from the fastening holes 20 to achieve the effect of easy disassembly. When operating the rotating shaft 13, it can be rotated by the handle 11 to achieve the effect of easy use.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A graphite frame capable of improving intra-chip chromatic aberration, comprising a graphite frame (1), characterized in that: A plurality of neatly arranged workstation frames (9) are arranged inside the graphite frame (1), a placement groove (6) is provided on the workstation frame (9), a placement frame (3) is fixedly connected to the inner wall around the placement groove (6), a protection frame (5) is fixedly connected to the placement frame (3), a gap for placing battery cells exists between the inner circle of the protection frame (5) and the inner circle of the placement frame (3), and the protection frame (5) and the placement frame (3) are inclined at an angle of 25°; A square receiving groove (2) is provided in the workstation frame (9), and a sliding hole communicating with the receiving groove (2) is provided on a side of the protection frame (5) close to the placement frame (3); Four L-shaped graphite pads (4) of the same specifications are slidably arranged in the receiving groove (2), wherein one side of the graphite pad (4) extending out of the receiving groove (2) is inclined and has an angle equal to that of the inner circle of the protection frame (5), and the four graphite pads (4) are combined into a square; The four corners of the workstation frame (9) are all provided with connection holes (7), a fixing box (8) is installed in the connection hole (7), and a driving mechanism is arranged in the fixing box (8), and the driving mechanism is used to drive the graphite pad (4) to move; The driving mechanism comprises a rotating shaft (13) rotatably arranged in a fixed box (8), the outer wall of the rotating shaft (13) is provided with a plurality of staggered first arc-shaped slots (15) and second arc-shaped slots (16), one end of each graphite pad (4) away from the slide-out hole is fixedly connected to a connecting rod (17), a guide hole for the connecting rod (17) to slide is provided between the fixed box (8) and the work station frame (9), one end of the connecting rod (17) extending into the fixed box (8) is fixedly connected to a spherical adjusting block (14), and one end of the graphite pad (4) close to the fixed box (8) is fixedly connected to a plurality of springs (12) fixedly connected to the work station frame (9); The depth of the first arc-shaped groove (15) is less than the depth of the second arc-shaped groove (16), and when the graphite pad (4) is engaged with the first arc-shaped groove (15), the inclined surface of the graphite pad (4) is flush with the slide-out hole; The diameter of the adjusting block (14) is larger than the diameter of the guide hole; A plurality of mounting plates (10) are fixedly connected to the outer side wall of the graphite frame (1).

2. The graphite frame capable of improving intra-chip chromatic aberration according to claim 1, characterized in that: A rounded corner (161) is provided at the notch of the second arc-shaped slot (16).

3. The graphite frame capable of improving intra-chip chromatic aberration according to claim 1, characterized in that: A cover plate (22) located at the rear side of the graphite frame (1) is provided on one side of the fixing box (8), a plurality of fastening holes (20) are provided on the cover plate (22), and screws (21) for fixing the cover plate (22) and the fixing box (8) are installed in the fastening holes (20).

4. The graphite frame capable of improving intra-chip chromatic aberration according to claim 1, characterized in that: A guide groove (18) is provided on the inner wall of the storage groove (2), and a guide plate (19) which is plugged and movable with the guide groove (18) is fixedly connected to the side of the graphite pad (4).

5. The graphite frame capable of improving intra-chip chromatic aberration according to claim 1, characterized in that: One end of the rotating shaft (13) extending out of the fixed box (8) is fixedly connected with a handle (11).

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