Battery piece double-sided passivation carrier

Abstract

The utility model relates to the technical field of solar cell processing, and discloses a double-sided passivation carrier for a cell. The battery piece double-face passivation carrier comprises a frame assembly and a pressing assembly, the frame assembly comprises a bottom plate and two side plates, and the bottom ends of the two side plates are installed on the bottom plate at intervals in the first direction; the pressing assembly is detachably installed at the top ends of the two side plates. A first containing cavity is defined by the frame assembly and the pressing assembly, a lifting supporting plate is arranged at the bottom of the first containing cavity, the first containing cavity is used for containing a battery piece set, openings for passivating the battery piece set are formed in the two ends, in the second direction, of the first containing cavity, and the pressing assembly can be connected to the top of the battery piece set in a pressed mode. And during passivation processing, the passivation gas can perform double-side passivation on the battery piece group through the two openings of the first accommodating cavity along the second direction, so that the processing requirement is met, and the processing efficiency and the processing quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to solar cell piece processing technical field especially relates to a cell piece double -sided passivation carrier. BACKGROUND

[0002] In order to cut the production cost of photovoltaic cell piece, photovoltaic industry gradually formed the development direction of silicon wafer towards larger size production. However, with the increase of cell piece size, the increase of resistance will cause at the component level, and then more heat loss will be produced in the cell piece, finally affect the overall efficiency of the component. Therefore, the industry begins to widely adopt large silicon wafer half component technology, that is, cutting the cell piece into three pieces, four pieces before assembling, so as to reduce the internal resistance of single piece and improve the overall efficiency of the component.

[0003] Cutting the cell piece into three pieces, four pieces, usually after screen printing, laser scribing cutting is carried out, and then the surface after cutting is passivated. This step aims to prevent the electron transition of PN junction area to the cutting surface, form the load carrier, and thus weaken the power generation effect. But serious damage and interface defects will be produced in the process of laser cutting, and these damage and defects will become the center of carrier recombination. In view of this problem, the industry can adopt edge passivation technology to repair, so as to ensure the performance and efficiency of the cell piece.

[0004] In the prior art, three pieces, four pieces of cell piece can be divided into single side passivation surface and double side passivation surface. For the cell piece needing double side passivation, the current carrier can only passivate the cell piece on one side, which cannot meet the production demand.

[0005] Therefore, there is an urgent need for a cell piece double side passivation carrier to solve the above problems. UTILITY MODEL CONTENT

[0006] Based on the above, the utility model aims at providing a kind of cell piece double side passivation carrier, passivation gas can be carried out double side passivation to cell piece group by first containing cavity along the two openings of second direction, satisfy processing demand, improve processing efficiency and processing quality.

[0007] To achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A kind of cell piece double side passivation carrier, comprising:

[0009] Frame body assembly, it includes bottom plate and two side plates, the bottom end of two side plates is installed on the bottom plate along the first direction with interval;

[0010] Compression assembly, it is detachably installed on the top end of two side plates;

[0011] The frame assembly and the pressing assembly enclose a first accommodating cavity for accommodating a battery piece group, the first accommodating cavity is provided with openings at both ends along a second direction for passivating the battery piece group, and the pressing assembly can be pressed on the top of the battery piece group.

[0012] As a preferred technical scheme of the battery piece double-side passivation carrier, the rib plate is arranged between the side plate away from each other and the bottom plate.

[0013] As a preferred technical scheme of the battery piece double-side passivation carrier, the pressing assembly comprises a support plate, a pressing plate and a plurality of elastic components, both ends of the support plate are detachably connected to the top end of the two side plates, the pressing plate is located below the support plate, the pressing plate is connected to the support plate through the plurality of elastic components, and the elastic force of the plurality of elastic components drives the pressing plate to be pressed on the top of the battery piece group.

[0014] As a preferred technical scheme of the battery piece double-side passivation carrier, the elastic component comprises a bolt and a spring, the support plate is provided with a first through hole, the pressing plate is provided with a first threaded hole, the bolt is arranged in the first through hole, the spring and is threadedly connected to the first threaded hole.

[0015] As a preferred technical scheme of the battery piece double-side passivation carrier, the frame assembly further comprises at least one partition plate, the at least one partition plate is arranged between the two side plates, the frame assembly and the pressing assembly enclose at least two first accommodating cavities, adjacent first accommodating cavities are isolated by the partition plate, the pressing plate is at least two, and the pressing plate corresponds to the first accommodating cavity one by one.

[0016] As a preferred technical scheme of the battery piece double-side passivation carrier, the support plate is provided with a second avoiding groove on both sides along the second direction, and a grab knob is arranged in the second avoiding groove.

[0017] As a preferred technical scheme of the battery piece double-side passivation carrier, the pressing assembly further comprises two clamping components, both ends of the support plate are clamped to the top end of the two side plates through the clamping components;

[0018] Both ends of the support plate are overlapped on the top end of the two side plates, the clamping component comprises a fixed block and a clamping block, the fixed block is connected to the side plate, the fixed block is provided with a guide hole extending along the first direction, the clamping block is slidingly connected in the guide hole, the clamping block can be slid to a clamping position and an avoiding position, when the clamping block is located at the clamping position, the clamping block stops the end of the support plate away from one side of the side plate, and when the clamping block is located at the avoiding position, the support plate can be separated from the side plate.

[0019] As a preferred technical scheme of the battery piece double-side passivation carrier, the top end of the side plate is provided with a limiting protrusion, the supporting plate is provided with a limiting groove corresponding to the limiting protrusion, and the limiting protrusion can be embedded in the limiting groove.

[0020] As a preferred technical scheme of the battery piece double-side passivation carrier, the bottom wall of the clamping block near one end of the supporting plate is provided with a buckle, the supporting plate is provided with a clamping groove corresponding to the buckle, and the buckle can be clamped in the clamping groove.

[0021] The clamping component includes a limiting washer and a fastening screw, and one end of the clamping block away from the supporting plate is provided with a second threaded hole, and the fastening screw is threaded into the limiting washer and is screwed into the second threaded hole.

[0022] As a preferred technical scheme of the battery piece double-side passivation carrier, the battery piece double-side passivation carrier further comprises a lifting supporting plate, and the lifting supporting plate is arranged in the first accommodating cavity and used for carrying the battery piece group.

[0023] The battery piece double-side passivation carrier has the following beneficial effects:

[0024] The battery piece double-side passivation carrier has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed in the description of the embodiments of the utility model will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the utility model and these drawings without creative labor.

[0026] Figure 1 It is the structural schematic diagram of the battery piece double-side passivation carrier provided by the embodiment of the utility model;

[0027] Figure 2 It is the structural schematic diagram of the clamping component provided by the embodiment of the utility model;

[0028] Figure 3 is a side view of the side plate provided by the embodiment of the utility model;

[0029] Figure 4 is a structural schematic view of the battery piece double-side passivation carrier provided with the partition plate.

[0030] The marks in the figure are as follows:

[0031] 1, frame assembly; 11, bottom plate; 12, side plate; 121, limiting protrusion; 13, first containing cavity; 14, partition plate; 2, compression assembly; 21, support plate; 211, clamping groove; 212, grabbing knob; 213, second avoiding groove; 22, pressing plate; 23, elastic component; 231, screw; 232, spring; 24, clamping component; 241, fixed block; 2411, guide hole; 242, clamping block; 243, limiting gasket; 244, fastening screw; 3, rib plate; 4, lifting supporting plate. Specific embodiments

[0032] The utility model will be further explained in detail in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all the structures.

[0033] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0035] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0036] As shown in Figure 1 The present embodiment provides a battery piece double-side passivation carrier, which comprises a frame assembly 1 and a compression assembly 2. The frame assembly 1 comprises a bottom plate 11 and two side plates 12, the bottom ends of the two side plates 12 are spaced apart and mounted on the bottom plate 11 along a first direction; the compression assembly 2 is detachably mounted on the top ends of the two side plates 12; the frame assembly 1 and the compression assembly 2 enclose a first containing cavity 13, the first containing cavity 13 is used for containing a battery piece group, the two ends of the first containing cavity 13 along a second direction are provided with openings for passivation of the battery piece group, and the compression assembly 2 can be compressed on the top of the battery piece group. In the present embodiment, the first direction is X, the second direction is Y, and the first direction and the second direction are perpendicular to each other and both in the horizontal plane. The battery piece group can be stacked by a plurality of quarter battery pieces.

[0037] When double-side passivation of the battery piece group is required, the compression assembly 2 is detached, the top of the first containing cavity 13 or the opening of the first containing cavity 13 along the second direction is used to place the battery piece group in the first containing cavity 13, and then the compression assembly 2 is mounted on the top ends of the two side plates 12, at this time the compression assembly 2 compresses the top of the battery piece group, and the battery piece group is mounted on the battery piece double-side passivation carrier. During passivation processing, the passivation gas can pass through the two openings of the first containing cavity 13 along the second direction to perform double-side passivation on the battery piece group, meet the processing requirements, and improve the processing efficiency and processing quality.

[0038] Preferably, a rib plate 3 is arranged between each side of the two side plates 12 and the bottom plate 11, which improves the connection strength of the side plates 12 and the bottom plate 11, and prevents the frame assembly 1 from deforming. In the present embodiment, the two ends of the bottom plate 11 protrude from the side plates 12, the side wall of the rib plate 3 is connected to the side plate 12, and the bottom wall of the rib plate 3 is connected to the protruding part of the bottom plate 11 opposite to the side plate 12.

[0039] In the present embodiment, the bottom ends of the two side plates 12 are connected to the bottom plate 11 by a plurality of screws, a plurality of third threaded holes are arranged in the side plate 12 along the vertical direction, the rib plate 3 is provided with a second through hole corresponding to the threaded hole, and the screw is arranged in the second through hole and threadedly connected to the third threaded hole, thereby realizing the connection of the rib plate 3 and the side plate 12.

[0040] In the embodiment, the double-side passivation carrier of the battery piece further comprises a lifting pallet 4 arranged in the first accommodating cavity 13, and the lifting pallet 4 is used for carrying the battery piece group. During the installation of the battery piece group in the first accommodating cavity 13, the conveying mechanism conveys the battery piece to the first accommodating cavity 13, and the conveying mechanism has certain requirements on the receiving height. The robot can drive the lifting pallet 4 to lift to meet the requirements of the receiving height of the conveying mechanism, and the automatic conveying of the battery piece is realized. In the embodiment, the bottom of the lifting pallet 4 is provided with a first avoiding groove for the robot to lift.

[0041] Further, as shown in Figure 1 and Figure 2 , the pressing assembly 2 comprises a support plate 21, a pressing plate 22 and a plurality of elastic components 23. The two ends of the support plate 21 are respectively detachably connected to the top ends of the two side plates 12. The pressing plate 22 is located below the support plate 21. The pressing plate 22 is connected to the support plate 21 through the plurality of elastic components 23. The elastic force of the plurality of elastic components 23 drives the pressing plate 22 to be pressed on the top of the battery piece group. Among them, only the support plate 21 needs to be connected to the top ends of the two side plates 12 to realize the installation of the pressing assembly 2, which is simple to operate. Moreover, the elastic force of the elastic component 23 drives the pressing plate 22 to be elastically pressed on the top of the battery piece group, which realizes the pressing of the battery piece group and prevents the hard contact between the pressing plate 22 and the battery piece group from damaging the battery piece group.

[0042] In the embodiment, the elastic component 23 comprises a bolt 231 and a spring 232. The support plate 21 is provided with a first through hole. The pressing plate 22 is provided with a first threaded hole. The bolt 231 is arranged in the first through hole, the spring 232 and the first threaded hole. In the state that the pressing plate 22 is not pressed, the spring 232 drives the pressing plate 22 to move away from the support plate 21. The bolt 231 realizes the connection between the pressing plate 22 and the support plate 21. When the pressing plate 22 is pressed on the battery piece group, the battery piece group drives the pressing plate 22 to compress the spring 232 to move close to the support plate 21. In the embodiment, the elastic component 23 is four groups.

[0043] Further preferably, as shown in Figure 4 , the support plate 21 is provided with a second avoiding groove 213 on both sides along the second direction. The second avoiding groove 213 is provided with a grab button 212. By arranging the second avoiding groove 213, the distance between the grab buttons 212 on both sides of the support plate 21 can be reduced, thereby meeting the requirements of the grabbing width of the robot. When the pressing assembly 2 needs to be disassembled, the robot can grab the grab buttons 212 on both sides of the support plate 21, which is convenient for moving the pressing assembly 2.

[0044] Preferably, the battery piece double-side passivation carrier further comprises two clamping components 24, the two ends of the support plate 21 are clamped to the top ends of the two side plates 12 through the clamping components 24 respectively; the two ends of the support plate 21 are overlapped on the top ends of the two side plates 12, the clamping component 24 comprises a fixing block 241 and a clamping block 242, the fixing block 241 is connected to the side plate 12, the fixing block 241 is provided with a guide hole 2411 extending in the first direction, the clamping block 242 is slidingly connected in the guide hole 2411, the clamping block 242 can slide to a clamping position and an avoiding position, when the clamping block 242 is located at the clamping position, the clamping block 242 stops the end of the support plate 21 away from one side of the side plate 12; when the clamping block 242 is located at the avoiding position, the support plate 21 can be separated from the side plate 12. When installing the pressing assembly 2, first slide the clamping block 242 to the avoiding position, then overlap the two ends of the support plate 21 on the top ends of the two side plates 12, then push the clamping block 242 to slide to the clamping position, the clamping block 242 stops the end of the support plate 21 away from one side of the side plate 12, and the fixing of the support plate 21 is realized. In the embodiment, each fixing block 241 is provided with two guide holes 2411 arranged in the second direction, so that the two ends of the support plate 21 are fixed by two clamping blocks 242 respectively.

[0045] Preferably, as shown in Figures 1-3 the top end of the side plate 12 is provided with a limiting protrusion 121, the support plate 21 is provided with a limiting groove corresponding to the limiting protrusion 121, and the limiting protrusion 121 can be embedded in the limiting groove. The limiting protrusion 121 provides positioning for the support plate 21, facilitates the overlap of the support plate 21 on the top end of the side plate 12, and can limit the displacement of the support plate 21 relative to the side plate 12 in the horizontal direction.

[0046] Further preferably, the bottom wall of one end of the clamping block 242 close to the support plate 21 is provided with a buckle, the support plate 21 is provided with a clamping groove 211 corresponding to the buckle, and the buckle can be clamped in the clamping groove 211. On the one hand, in the state of clamping the support plate 21, the clamping block 242 is prevented from continuing to slide along the guide hole 2411, improving the stability of the connection; on the other hand, the buckle of the support plate 21 can prevent the clamping block 242 from moving too far away from the support plate 21.

[0047] In the embodiment, the battery piece double-side passivation carrier has stable structure and simple movement logic, the support plate 21 is connected to the side plate 12 in a clamping manner, and the buckle is automatically opened, so that the battery piece double-side passivation carrier can be automatically taken and placed from the top without changing the placement angle, which can reduce the difficulty and cost of automatic design.

[0048] Preferably, the snap-fit ​​component 24 includes a limiting washer 243 and a fastening screw 244. A second threaded hole is provided at the end of the snap-fit ​​block 242 facing away from the support plate 21. The fastening screw 244 passes through the limiting washer 243 and is threaded into the second threaded hole. The limiting washer 243 prevents the snap-fit ​​block 242 from moving too far in the direction close to the support plate 21. The snap-fit ​​and limiting washer 243 limit the movement of both ends of the snap-fit ​​block 242, preventing the snap-fit ​​block 242 from disengaging from the guide hole 2411.

[0049] It should be noted that this embodiment also provides a boat support, which is used to accommodate the double-sided passivation carrier of the battery cell. The boat support is provided with multiple second receiving cavities, and the multiple double-sided passivation carriers of the battery cell can be placed side by side in the second receiving cavities, either horizontally or vertically.

[0050] Preferably, such as Figure 4 As shown, the frame assembly 1 also includes at least one partition 14, which is disposed between two side plates 12. The frame assembly 1 and the clamping assembly 2 form at least two first receiving cavities 13, which are separated by the partition 14. There are at least two pressure plates 22, which correspond one-to-one with the first receiving cavities 13. This double-sided passivation carrier for solar cells has at least two first receiving cavities 13, thereby increasing the load-bearing capacity of the solar cell assembly and improving processing efficiency.

[0051] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A double-sided passivation carrier for battery cells, characterized in that, include: The frame assembly (1) includes a base plate (11) and two side plates (12), the bottom ends of the two side plates (12) being spaced apart on the base plate (11) along a first direction; A clamping assembly (2) is detachably mounted on the top of the two side plates (12); The frame assembly (1) and the clamping assembly (2) form a first receiving cavity (13), which is used to receive the battery cell assembly. The first receiving cavity (13) has openings at both ends along the second direction for the battery cell assembly to be passivated. The clamping assembly (2) can be pressed against the top of the battery cell assembly.

2. The battery cell double-sided passivation carrier according to claim 1, characterized in that, Ribs (3) are provided between the two side plates (12) facing away from each other and the bottom plate (11).

3. The battery cell double-sided passivation carrier according to claim 1, characterized in that, The pressing assembly (2) includes a support plate (21), a pressure plate (22), and multiple elastic components (23). The two ends of the support plate (21) are detachably connected to the top ends of the two side plates (12). The pressure plate (22) is located below the support plate (21). The pressure plate (22) is connected to the support plate (21) through multiple elastic components (23). The elastic force of the multiple elastic components (23) drives the pressure plate (22) to press against the top of the battery cell assembly.

4. The battery cell double-sided passivation carrier according to claim 3, characterized in that, The elastic component (23) includes a bolt (231) and a spring (232). The support plate (21) is provided with a first through hole, and the pressure plate (22) is provided with a first threaded hole. The bolt (231) passes through the first through hole, and the spring (232) is threadedly connected to the first threaded hole.

5. The battery cell double-sided passivation carrier according to claim 3, characterized in that, The frame assembly (1) further includes at least one partition (14), at least one partition (14) is disposed between two side plates (12), the frame assembly (1) and the pressing assembly (2) form at least two first receiving cavities (13), adjacent first receiving cavities (13) are separated by the partition (14), and there are at least two pressure plates (22), each pressure plate (22) corresponding to one of the first receiving cavities (13).

6. The battery cell double-sided passivation carrier according to claim 3, characterized in that, The support plate (21) is provided with second clearance grooves (213) on both sides along the second direction, and a grab button (212) is provided in the second clearance groove (213).

7. The battery cell double-sided passivation carrier according to claim 3, characterized in that, The battery cell double-sided passivation carrier also includes two snap-fit ​​components (24), and the two ends of the support plate (21) are respectively snapped to the top of the two side plates (12) through the snap-fit ​​components (24); The two ends of the support plate (21) overlap the tops of the two side plates (12). The snap-fit ​​component (24) includes a fixing block (241) and a snap-fit ​​block (242). The fixing block (241) is connected to the side plate (12). The fixing block (241) is provided with a guide hole (2411) extending along the first direction. The snap-fit ​​block (242) is slidably connected in the guide hole (2411). The snap-fit ​​block (242) can slide to the snap-fit ​​position and the avoidance position. When the snap-fit ​​block (242) is in the snap-fit ​​position, the snap-fit ​​block (242) stops the end of the support plate (21) from the side plate (12). When the snap-fit ​​block (242) is in the avoidance position, the support plate (21) can detach from the side plate (12).

8. The battery cell double-sided passivation carrier according to claim 7, characterized in that, The top of the side plate (12) is provided with a limiting protrusion (121), and the support plate (21) is provided with a limiting groove corresponding to the limiting protrusion (121). The limiting protrusion (121) can be embedded in the limiting groove.

9. The double-sided passivation carrier for battery cells according to claim 7, characterized in that, The bottom wall of the snap-fit ​​block (242) near the support plate (21) is provided with a snap-fit, and the support plate (21) is provided with a slot (211) corresponding to the snap-fit, and the snap-fit ​​can be snapped into the slot (211); The snap-fit ​​component (24) includes a limiting washer (243) and a fastening screw (244). The snap-fit ​​block (242) has a second threaded hole at one end away from the support plate (21). The fastening screw (244) passes through the limiting washer (243) and is threaded into the second threaded hole.

10. The double-sided passivation carrier for battery cells according to any one of claims 1-9, characterized in that, The battery cell double-sided passivation carrier also includes a lifting plate (4), which is disposed in the first receiving cavity (13) and is used to support the battery cell group.

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