Battery piece material box

Abstract

The utility model relates to the technical field of solar cell production, and discloses a cell box. The battery piece material box comprises a box body and a cover body. The box body is provided with an accommodating cavity for accommodating the stacked battery pieces and an opening communicated with the accommodating cavity. The box body comprises a bottom wall and side walls which are connected, and the side walls define a containing cavity on the bottom wall. The side, close to the containing cavity, of the side wall is provided with a blocking piece, at least part of the blocking piece protrudes out of the surface, close to the containing cavity, of the side wall to separate the side wall from the battery piece, and the hardness of the blocking piece is smaller than that of the side wall. And the cover body covers the opening. According to the battery piece material box provided by the invention, the risk that the battery pieces are damaged and damaged in the material box can be reduced.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of solar cell production, in particular to a cell piece box. BACKGROUND

[0002] With the continuous development of clean energy technology, more and more regions begin to apply photovoltaic modules to generate electricity. Photovoltaic modules rely on solar light energy to generate electricity and do not produce polluting products during the generation process, belonging to the environment-friendly power generation form. The cell piece is an important part of the photovoltaic module, and the cell piece has a semiconductor photoelectric effect and can convert absorbed light energy into electrical energy.

[0003] During the processing of the cell piece, the cell piece will undergo a half-cell cutting surface passivation process. The half-cell is usually loaded into a box, and then the passivation process is performed. Process gas can enter the box through the gas channel reserved in the box, and the cutting surface of the loaded half-cell is passivated and coated. The passivation of the cutting surface of the half-cell can effectively improve the efficiency of the cell piece. However, the cell piece placed in the box is prone to damage and damage. Therefore, how to reduce the risk of damage and damage of the cell piece in the box is an important problem. UTILITY MODEL CONTENT

[0004] The purpose of the embodiment of the present application is to provide a cell piece box which can reduce the risk of damage and damage of the cell piece in the box.

[0005] To solve the above technical problems, the embodiment of the present application provides a cell piece box. The cell piece box comprises a box body and a cover body. The box body is provided with a containing cavity for accommodating stacked cell pieces, and an opening communicating with the containing cavity. The box body comprises a bottom wall and a side wall connected together, and the side wall surrounds the containing cavity on the bottom wall. The side wall is provided with a blocking piece on the side close to the containing cavity, at least part of the blocking piece protrudes from the surface of the side wall close to the containing cavity to separate the side wall and the cell piece, and the hardness of the blocking piece is less than that of the side wall. The cover body covers the opening.

[0006] The cell piece box provided by the embodiment of the present application is provided with a blocking piece on the side of the side wall of the box body close to the containing cavity, and the blocking piece is made of a relatively soft material compared with the side wall. For the cell piece placed in the box body, the blocking piece can avoid direct hard contact with the side wall of the box body by the separation effect. Thus, through the blocking piece, the buffering effect is achieved during the overall movement of the box, and the force acting on the edge of the cell piece is reduced. Further, the risk of damage and damage of the cell piece in the box is reduced.

[0007] In some embodiments, the side wall is provided with a mounting groove near one side of the accommodating cavity, and a part of the barrier is embedded in the mounting groove. In this way, the part of the barrier can be embedded in the side wall through the mounting groove, so as to improve the stability of the barrier when assembled on the side wall.

[0008] In some embodiments, a plurality of barriers are provided, and the plurality of barriers are spaced apart from each other and arranged in the direction of the opening. In this way, the plurality of barriers can play a partitioning role at different positions, so as to disperse the influence of the force received by the edges of the battery pieces.

[0009] In some embodiments, the barrier is provided in a strip shape, and the length direction of the barrier is parallel to the direction of the opening. In this way, the barrier can be vertically arranged in the side wall, and at the same time, play a partitioning role around the whole stack of battery pieces.

[0010] In some embodiments, the barrier is detachably connected with the side wall. In this way, the barrier can be replaced through the detachable connection between the barrier and the side wall.

[0011] In some embodiments, the side wall has a plurality of corners, and the barrier is arranged adjacent to the corners of the side wall. In this way, the barrier can be arranged adjacent to the corners of the side wall, so as to better protect the corners of the battery pieces.

[0012] In some embodiments, the box body further comprises a supporting piece movably arranged on the bottom wall, and a surface of the supporting piece away from the bottom wall is a supporting surface for carrying the battery pieces. In this way, the supporting piece can be movably arranged, so as to facilitate the taking out of the battery pieces after the processing of the battery pieces is completed.

[0013] In some embodiments, the supporting surface is obliquely arranged relative to the direction of the opening, and the distance between the supporting surface and the opening gradually decreases in the direction close to the cutting edge of the battery pieces. In this way, the supporting surface with an oblique angle can be arranged to adapt to the height difference of the stack of battery pieces on the side of the cutting edge.

[0014] In some embodiments, the bottom wall is provided with a central hole, and a surface of the supporting piece is provided with a protruding portion protruding away from the supporting surface, and the protruding portion is clamped with the central hole. In this way, the clamping structure of the shaft hole can be arranged to simplify the cooperation between the supporting piece and the bottom wall.

[0015] In some embodiments, the bottom wall is provided with a plurality of hollow regions, and the plurality of hollow regions are distributed on both sides of the central hole. In this way, the hollow regions can provide a space for the jacking of the supporting piece, so as to ensure the smooth taking out of the battery pieces.

[0016] In some embodiments, the side wall is provided with a clamping piece away from one side of the containing cavity, and the clamping piece is used for clamping by the mechanical hand. In this way, the setting of the clamping piece can facilitate the automatic transfer of the overall position of the box. BRIEF DESCRIPTION OF DRAWINGS

[0017] One or more embodiments are illustrated by way of example in the figures that form a part of this disclosure and which do not limit the scope of the embodiments, in which like references indicate similar elements. The drawings in the figures are not necessarily to scale, the emphasis instead being placed upon illustrating the principles of the embodiments.

[0018] Figure 1 is a perspective structural schematic view of a battery piece box provided by some embodiments of the present application when the battery piece box is loaded with battery pieces;

[0019] Figure 2 is a top view structural schematic view of a box body in a battery piece box provided by some embodiments of the present application;

[0020] Figure 3 is a top view structural schematic view of a box body in a battery piece box provided by some embodiments of the present application when the box body is provided with a supporting piece;

[0021] Figure 4 is a side view structural schematic view of a supporting piece in a battery piece box provided by some embodiments of the present application. DETAILED DESCRIPTION

[0022] In order to make the purposes, technical solutions and advantages of the embodiments of the present application more clear, the embodiments of the present application will be described in detail below with reference to the drawings. However, those skilled in the art can understand that in the embodiments of the present application, many technical details are proposed in order to make the readers better understand the present application. However, the technical solutions claimed by the present application can be realized even without these technical details and various changes and modifications based on the following embodiments. The division of the following embodiments is for the convenience of description, and should not constitute any limitation on the specific embodiments of the present application, and the embodiments can be combined with each other and cited to each other without contradiction.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the description and the claims of this application and the above description of drawings, the terms "comprising" and "having" and any variations thereof, are intended to cover not exclusively inclusive.

[0024] In the description of the embodiments of the present application, unless specifically defined and limited otherwise, the technical terms "mounting", "connecting", "connecting", and other terms should be understood in a broad sense, 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 between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0025] With the continuous increase of the installed capacity of photovoltaic modules, the production efficiency of the cell pieces is also continuously improved. During the production process of the cell pieces, the half-cell pieces will undergo a cutting surface passivation process. Usually, the half-cell pieces formed after cutting are collected by a box, and then placed in a furnace tube to perform a passivation process. In the actual production process, after the whole cell piece is cut by a scribe machine, it is picked up and placed by an automatic four-axis robot, and is regularized into a box. About 860 cell pieces can be stacked in the box. After the box is filled with cell pieces, a cover plate is covered, and then a six-axis robot is used to pick up the box and place it into a small boat. After the small boat is placed into a tube furnace, the passivation process begins.

[0026] However, since the box is made of relatively hard metal material, such as aluminum, the edges of the cell pieces directly contact the hard box. In this way, during the operation of the cell pieces, batch edge collapse and corner defect phenomena are easily caused by bumping, and the defect ratio reaches 0.2%.

[0027] In order to solve the problem that the hard contact between the cell pieces and the box causes the cell pieces to easily appear edge collapse and corner defect phenomena, some embodiments of the present application provide a cell piece box. The cell piece box is provided with a barrier on the side wall of the box body. The barrier protrudes from the inner surface of the side wall and can separate the cell pieces placed in the box from the side wall. The barrier is made of a relatively soft material relative to the box body, so as to avoid the direct hard contact of the edges of the cell pieces with the box, thereby reducing the risk of damage and damage of the cell pieces in the box. The proportion of the cell pieces appearing edge collapse and corner defect phenomenon is reduced to 0.01%.

[0028] The structure of the cell piece box provided by some embodiments of the present application will be described below. Figures 1 to 4

[0029] As Figures 1 to 4 ​As shown, the battery piece magazine provided by some embodiments of the present application comprises a magazine body 11 and a cover body 12. The magazine body 11 is provided with a receiving cavity 101 for accommodating stacked battery pieces 21, and an opening 102 communicating with the receiving cavity 101. The magazine body 11 comprises a bottom wall 111 and a side wall 112 connected to each other, and the side wall 112 is arranged to form the receiving cavity 101 on the bottom wall 111. The side wall 112 is provided with a barrier 113 on the side close to the receiving cavity 101, at least part of the barrier 113 protrudes from the surface of the side wall 112 close to the receiving cavity 101 to separate the side wall 112 from the battery pieces 21, and the hardness of the barrier 113 is less than that of the side wall 112. The cover body 12 is arranged to cover the opening 102.

[0030] The magazine body 11 is a part for providing a receiving space for the battery pieces 21. The battery pieces 21 can be stacked and accommodated in the receiving cavity 101 of the magazine body 11 through the opening 102 of the magazine body 11. When the battery pieces 21 are placed, the battery pieces 21 are placed flat on the bottom wall 111 of the magazine body 11 and stacked one by one. The edges of the battery pieces 21 are adjacent to the side wall 112 of the magazine body 11. The barrier 113 is arranged on the side wall 112 of the magazine body 11 and located on the side of the side wall 112 close to the receiving cavity 101. The barrier 113 can protrude 0.5mm to 1mm from the inner surface of the side wall 112, for example, the barrier 113 can protrude 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1mm from the inner surface of the side wall 112.

[0031] The barrier 113 can separate the battery pieces 21 from the side wall 112. At the same time, the barrier 113 is made of a relatively soft material, such as polytetrafluoroethylene, plastic with moderate hardness and high temperature resistance, or carbon fiber, which can realize soft contact with the edges of the battery pieces 21. In actual cases, the barrier 113 can be arranged in the form of a plate, a strip, a line, a dot or a layer covering the inner surface of the side wall 112. The barrier 113 can be arranged in part of the side wall 112 to separate part of the side wall 112 from the battery pieces 21, or the barrier 113 can be arranged around the center of the receiving cavity 101 to separate the edges of the battery pieces 21 from the entire side wall 112. In addition, the side wall 112 of the magazine body 11 can be arranged in the form of a regular flat plate or an irregular special-shaped plate. The magazine body 11 can be spliced from multiple separate parts or arranged in an integrated structure.

[0032] The cover body 12 is a part for closing the opening 102 of the magazine body 11. The cover body 12 can cover the opening 102 of the magazine body 11, and an air inlet channel can be reserved at the edge of the opening 102 to allow process gas to enter the magazine body 11 to process the battery pieces 21. By covering the opening 102 with the cover body 12, the stacked battery pieces 21 can be stably accommodated in the receiving cavity 101 of the magazine body 11, and the stability of the battery pieces 21 during transfer and processing can be ensured.

[0033] In some embodiments of this application, a battery cell cassette has a barrier 113 on the side wall 112 of the cassette body 11 near the receiving cavity 101. The barrier 113 is made of a material that is relatively softer than the side wall 112. For the battery cell 21 placed inside the cassette body 11, the barrier 113 can prevent direct hard contact with the side wall 112 of the cassette body 11. Thus, the barrier 113 acts as a buffer during the overall movement of the cassette, reducing the impact of forces on the edges of the battery cell 21. This further reduces the risk of damage to the battery cell 21 inside the cassette.

[0034] In some embodiments, a mounting groove 1121 may be provided on the side of the sidewall 112 near the receiving cavity 101, and a portion of the barrier 113 is embedded in the mounting groove 1121.

[0035] The mounting groove 1121 provides a base for the barrier 113 to be disposed on the inner side of the side wall 112. A portion of the barrier 113 can be embedded in the mounting groove 1121, thereby ensuring the stability of the barrier 113 when assembled on the side wall 112. Simultaneously, compared to directly attaching the barrier 113 to the surface of the side wall 112, the mounting groove 1121 increases the contact area between the barrier 113 and the side wall 112, increasing the stress release transmission path. This can reduce the force exerted by the barrier 113 on the edge of the battery cell 21, reducing adverse effects on the battery cell 21 within the cassette. In practice, the barrier 113 can also be fitted onto the side of the side wall 112 near the receiving cavity 101.

[0036] In addition, there may be multiple barrier members 113, which are spaced apart from each other and arranged around the orientation of the opening 102.

[0037] Multiple barrier elements 113 can contact the edge of the battery cell 21 from different positions, separating the battery cell 21 from the side wall 112 while dispersing the stress area at the edge of the battery cell 21 and reducing the impact of forces on the edge of the battery cell 21. Simultaneously, the multiple barrier elements 113 are arranged around the orientation of the opening 102, serving as a separator between the battery cell 21 and the side wall 112 at multiple locations around it. Figures 1 to 3 As shown, separators 113 can be installed on the two smaller sidewalls of the housing 11 to separate the battery cells 21. When the battery cells 21 are transferred and processed through the material box, their cut surfaces face upwards. Under the influence of gravity, the two larger sidewalls of the housing 11 maintain a relatively stable position relative to the battery cells 21. Therefore, separators 113 can be installed only on the two smaller sidewalls of the housing 11.

[0038] In some embodiments, the barrier 113 can be provided in a strip shape, and the length direction of the barrier 113 is parallel to the direction of the opening 102.

[0039] The strip-shaped barrier 113 is arranged along the stacking direction of the battery sheet 21, i.e., the depth direction of the accommodating space in the box body 11, and can separate the entire stacked battery sheet 21 from the side wall 112. This is advantageous for reducing the number of barriers 113 arranged in the box body 11 and simplifying the structure of the box body 11.

[0040] In addition, the barrier 113 can be detachably connected to the side wall 112.

[0041] By using a detachable connection form, the barrier 113 can be replaced in time to replace the barrier 113 that has failed due to wear and tear. In actual cases, the barrier 113 can be assembled on the inner side of the side wall 112 by means of fasteners such as screws, or connected to the side wall 112 in a clamping form, or connected to the side wall 112 in an adhesive form.

[0042] In some embodiments, the side wall 112 can have multiple corners, and the barrier 113 is arranged adjacent to the corners of the side wall 112.

[0043] That is, the barrier 113 is arranged close to the corner position of the battery sheet 21, which can reduce the probability of the battery sheet 21 having a broken edge at the corner position, thereby reducing the fragment rate of the battery sheet 21.

[0044] In some embodiments, as shown in Figure 3 and Figure 4 The box body 11 can further include a support 13 movably arranged on the bottom wall 111, and the surface of the support 13 away from the bottom wall 111 is a support surface 131 for carrying the battery sheet 21.

[0045] The support 13 arranged on the bottom wall 111 can serve as a component for carrying the stacked battery sheet 21. By movably arranging the support 13 on the bottom wall 111, the taking of the battery sheet 21 is facilitated. The support 13 can be lifted out of contact with the bottom wall 111, and the battery sheet 21 stacked on the support surface 131 is gradually moved out of the accommodating cavity 101 of the box body 11. Thus, the battery sheet 21 is facilitated to be taken out.

[0046] In addition, the support surface 131 can be arranged obliquely relative to the direction of the opening 102, and the distance between the support surface 131 and the opening 102 gradually decreases in the direction close to the cutting edge of the battery sheet 21.

[0047] As shown in Figure 4As shown, the bearing surface 131 of the bearing member 13 has a certain inclination angle. In this way, the height difference of the stacked battery pieces 21 at the cutting edge can be compensated for. Thus, the fit of a larger number of battery pieces 21 in the accommodating cavity 101 is ensured, and the plating proportion is reduced.

[0048] It should be noted that due to the fact that the battery piece 21 is thinner at the cutting edge than at the non-cutting edge, a height difference will be formed between the cutting edge side and the non-cutting edge side of the stacked battery pieces 21. For example, 860 battery pieces 21 stacked together will be 1.5-3 mm lower at the cutting edge side than at the non-cutting edge side. In actual cases, the side of the bearing surface 131 close to the cutting edge of the battery piece 21 can be made closer to the opening 102 than the other side, so that a height difference of about 2 mm is formed between the side of the bearing surface 131 close to the cutting edge of the battery piece 21 and the other side, to accommodate the stacking and compression of a larger number of battery pieces 21.

[0049] In some embodiments, as shown in Figures 2 to 4 The bottom wall 111 can be provided with a central hole 1111, and the surface of the bearing member 13 is provided with a protrusion 132 protruding away from the bearing surface 131, and the protrusion 132 is engaged with the central hole 1111.

[0050] The central hole 1111 of the bottom wall 111 is close to the center, which facilitates the movement of the bearing member 13. When placing the bearing member 13 in the box body 11, the protrusion 132 at the bottom of the bearing member 13 can be inserted into the central hole 1111 of the bottom wall 111, and the cooperation between the bearing member 13 and the bottom wall 111 can be completed.

[0051] The bearing member 13 can be provided with a rectangular profile corresponding to the side wall 112, so as to ensure that the bearing member 13 cannot easily rotate in the box body 11.

[0052] In addition, as shown in Figure 2 The bottom wall 111 can be provided with a plurality of hollow areas 1112, and the plurality of hollow areas 1112 are distributed on both sides of the central hole 1111.

[0053] The hollow areas 1112 can provide a space for the lifting device to lift the bearing member 13. The execution part of the lifting device can be supported on the bearing member 13 through the hollow areas 1112, so as to lift the bearing member 13 and move the battery pieces 21 stacked on the bearing surface 131 of the bearing member 13 out of the accommodating cavity 101 of the box body 11. By providing the hollow areas 1112 on both sides of the central hole 1111, the bearing member 13 can be lifted from different areas, so as to ensure the stability of the battery pieces 21 when being taken out of the box body 11.

[0054] In some embodiments, the side wall 112 can be provided with a clamping piece 114 on the side away from the accommodating cavity 101, which is used for clamping by a mechanical hand.

[0055] The clamping piece 114 is fixed on the outer side of the side wall 112, and forms a protruding structure on the outer side of the side wall 112, which facilitates the overall transfer of the box. The mechanical hand can clamp the protruding structure, thereby transferring the box containing the battery piece 21 as a whole, which is conducive to realizing the automation operation in the process of processing the battery piece 21.

[0056] As shown in Figures 1 to 3 The clamping piece 114 can be arranged on the side wall of the part of the box body 11 with a larger area. Moreover, the clamping piece 114 can be arranged on the opposite edges of the part of the side wall, so that the mechanical hand can grasp the box from multiple positions.

[0057] It can be understood by those skilled in the art that the above-mentioned embodiments are specific embodiments for implementing the present application, and various changes can be made in form and details in actual application without departing from the spirit and scope of the present application.

Claims

1. A battery sheet magazine, characterized by, The application relates to a battery piece magazine, comprising: a box body provided with a containing cavity for containing stacked battery pieces and an opening communicating with the containing cavity, the box body comprising a bottom wall and a side wall connected to each other, the side wall surrounding the containing cavity on the bottom wall, and the side wall being provided with a barrier near a side of the containing cavity, at least part of the barrier protruding from a surface of the side wall near the containing cavity to separate the side wall and the battery pieces, the hardness of the barrier being less than that of the side wall; and a cover body covering the opening.

2. The battery piece magazine according to claim 1, wherein: the side wall is provided with a mounting groove near the containing cavity, and part of the barrier is embedded in the mounting groove.

3. The battery piece magazine according to claim 1, wherein: the barrier has a plurality of barriers, and the plurality of barriers are spaced from each other and arranged around the opening in a direction of orientation.

4. The battery piece magazine according to claim 3, wherein: the barrier is provided in a strip shape, and the length direction of the barrier is parallel to the orientation of the opening.

5. The battery piece magazine according to claim 1, wherein: the barrier is detachably connected to the side wall.

6. The battery piece magazine according to claim 1, wherein: the side wall has a plurality of corners, and the barrier is arranged adjacent to the corners of the side wall.

7. The battery piece magazine according to claim 1, wherein: the support surface is arranged to be inclined relative to the orientation of the opening, and the distance between the support surface and the opening gradually decreases in a direction close to the cutting edge of the battery piece.

8. The battery piece magazine according to claim 1, wherein: the bottom wall is provided with a central hole, a surface of the support member is provided with a protruding part protruding from a side away from the support surface, and the protruding part is clamped with the central hole.

9. The battery piece magazine according to claim 8, wherein: the bottom wall is provided with a plurality of hollow regions, and the plurality of hollow regions are distributed on both sides of the central hole. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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