Chip loading material box

Abstract

The utility model discloses a sheet loading material box which is provided with a supporting plate and a pressing plate mechanism, the supporting plate used for bearing solar cells can be taken out, after a plurality of solar cells can be stacked on the supporting plate, the supporting plate and the solar cells are loaded into the sheet loading box together, and then the plurality of solar cells are pressed tightly through the pressing plate mechanism. A plurality of solar cells can be placed in the cell containing box at the same time through the supporting plate, and the technical problem that in the prior art, the solar cells need to be inserted into the cell containing box one by one, and efficiency is low is solved. And the arrangement of the pressing plate mechanism can reduce the gap between the solar cells, thereby preventing the main light receiving surfaces of the solar cells from forming large-range winding plating.

Description

Technical Field

[0001] This utility model relates to the field of solar cell technology, and in particular to a cell loading box. Background Technology

[0002] With technological advancements and continued growth in market demand, the efficiency and production capacity of photovoltaic modules have become a focus of industry attention.

[0003] Laser dicing technology, as an advanced manufacturing process, is gradually becoming one of the effective ways to improve the power of photovoltaic modules. This technology divides solar cells into two or more smaller pieces, thereby achieving flexibility in module design and optimization of current management. However, during the laser cutting process, numerous micro-cracks and fragments form on the cut surface of the solar cells. These microscopic defects not only damage the integrity of the silicon wafer but can also become recombination centers for charge carriers, increasing electrical losses and affecting the power generation efficiency and lifespan of the photovoltaic modules. To overcome this technical challenge, the industry has proposed a passivation coating treatment for the cut surface. By depositing one or more thin films on the cut surface, a protective layer is formed, effectively isolating the cut surface from external environmental erosion and reducing charge carrier recombination at defects, thus reducing the resulting electrical losses. However, existing carriers used for coating the cut surfaces of solar cells can only insert one cell at a time. In mass production, inserting cells one by one is time-consuming and inefficient, failing to meet the requirements of large-scale production. Utility Model Content

[0004] In order to solve the technical problem of low efficiency in the prior art of carriers used for coating the cut surface of solar cells, which can only insert one solar cell at a time, this utility model proposes a cell loading box.

[0005] The technical solution adopted in this utility model is:

[0006] This utility model proposes a tablet loading box, comprising:

[0007] A wafer loading box, wherein one side of the wafer loading box is not closed and serves as a loading side for placing solar cells;

[0008] A tray, which is movably disposed at the bottom of the wafer cassette, is used to transport solar cells stacked on the tray.

[0009] A pressure plate mechanism is provided on the top of the wafer cassette, and the first pressure plate of the pressure plate mechanism is located inside the wafer cassette. The first pressure plate is used to press down the solar cells on the tray.

[0010] Furthermore, the pressure plate mechanism includes: a first pressure plate disposed inside the tablet box, a second pressure plate disposed outside the tablet box, and at least one elastic component that passes through the tablet box to elastically connect the first pressure plate and the second pressure plate;

[0011] When the second pressure plate is lifted, the elastic component is compressed, the first pressure plate moves away from the tray, and the solar cells stacked on the tray are released.

[0012] When the second pressure plate is released, the elastic component returns to its original state, and the first pressure plate moves closer to the tray, pressing the solar cells stacked on the tray.

[0013] Furthermore, the elastic component includes a spring and a pressure plate shaft. The spring is sleeved on the outside of the pressure plate shaft. One end of the pressure plate shaft is connected to the first pressure plate, and the other end moves through the tablet box and is connected to the second pressure plate. The spring is located inside the tablet box and its top end abuts against the top of the tablet box, while its bottom end abuts against the first pressure plate.

[0014] Furthermore, at least one support column is provided on the top, bottom, and two side walls adjacent to the loading side of the tablet box to support the tablet box in different orientations.

[0015] Furthermore, a protective plate is provided on the outer wall of the tablet box opposite to the loading side. When the tablet box is placed with the loading side facing upward, the protective plate protects the tablet box.

[0016] Furthermore, when the width of the loading side is greater than the width of the solar cell, a pad is provided on either side of the loading box adjacent to the loading side, and / or when the depth of the loading side is greater than the length of the solar cell, a pad is provided on the side of the loading box opposite to the loading side.

[0017] Furthermore, the tray and the film box are connected by a pin.

[0018] Furthermore, the tray includes a base disposed at the bottom of the tablet cassette and a support plate disposed on the base, the support plate covering the step formed between the base and the base.

[0019] Furthermore, the first pressure plate and the second pressure plate are parallel to each other with the support plate.

[0020] Furthermore, the elastic component also includes a limiting seat, which is disposed on the outer side of the top of the tablet cassette, and the pressure plate shaft moves through the limiting seat, which is located between the second pressure plate and the top of the tablet cassette.

[0021] Compared with existing technologies, this utility model discloses a wafer loading box, which includes a tray and a pressing mechanism. The tray for holding solar cells can be removed, and multiple solar cells can be stacked on the tray. The tray and solar cells are then loaded into the loading box together, and the pressing mechanism presses the multiple solar cells together. The tray allows multiple solar cells to be placed into the loading box simultaneously, solving the problem of low efficiency caused by inserting solar cells one by one in existing technologies. Furthermore, the pressing mechanism reduces the gaps between solar cells, preventing large-scale coating on the main light-receiving surface of the solar cells. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram showing the orientation of the solar cells when they are mounted in an embodiment of this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0026] 1. Film cassette; 2. Tray; 3. First pressure plate; 31. Second pressure plate; 32. Spring; 33. Pressure plate shaft; 34. Limiting seat; 4. Support column. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] The principle and structure of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0029] Existing carriers for coating the cut surfaces of solar cells can only insert one cell at a time. In mass production, inserting cells one by one into the carrier is time-consuming and inefficient, and cannot meet the requirements of mass production.

[0030] like Figure 1-3As shown, this utility model proposes a tablet loading box, including: a tablet loading box 1, a tray 2, and a pressure plate mechanism.

[0031] The solar cell loading box 1 is rectangular, with an open front serving as the loading side for placing solar cells. A tray 2 is used to transport multiple solar cells stacked on the tray 2, with the solar cells requiring coating facing the loading side of the loading box 1. Passivation material is sprayed onto the loading side of the solar cells to coat the desired side. A pressure plate mechanism is located on top of the loading box 1, with the first pressure plate 3 inside the loading box 1. The first pressure plate 3 holds the solar cells stacked on the tray 2 down, preventing collisions and damage during movement and reducing gaps between the solar cells to prevent passivation material from entering between them and causing coating issues. Specifically, the tray is removed from the loading box, the stacked solar cells are placed on the tray, and then the tray and solar cells are placed back into the loading box.

[0032] Specifically, when the tray 2 is outside the loading box 1, the solar cells are stacked on the tray, and then the tray, connected to the solar cells, is placed into the loading box 1. This loading box 1 can hold multiple solar cells at once via the tray, significantly reducing loading time and improving the efficiency of the entire production line compared to the traditional method of loading only one cell at a time. In large-scale production, this batch processing capability is crucial for shortening production cycles and increasing capacity. The design of the pressure plate mechanism effectively prevents the solar cells from being damaged by shaking or collisions during the movement or transportation of the loading box 1, while also reducing the gaps between the solar cells and preventing passivation material from entering between the cells and causing plating issues.

[0033] During the solar cell assembly process, tray 2 is first removed using an automated device with a fork structure. Multiple stacked solar cells are then placed on tray 2. Another automated device lifts the pressure plate mechanism, causing the first pressure plate 3 to move upwards, increasing the internal assembly space of the assembly box 1. Tray 2 is then moved, and it and the solar cells placed on it are placed into the assembly box 1. The first pressure plate 3 is then released, causing it to move downwards and press down on the solar cells on tray 2. When placing tray 2 and the solar cells into the assembly box 1, the pad can be gently shaken to expel any air trapped between the solar cells, ensuring a tight fit and preventing passivation material from entering the gaps between adjacent solar cells.

[0034] The pressure plate mechanism specifically includes: a first pressure plate 3, a second pressure plate 31, and an elastic component.

[0035] The first pressure plate 3 is plate-shaped and is located inside the wafer cassette 1, at the top. The second pressure plate 31 is plate-shaped and is located on the outer side of the top of the wafer cassette 1. At least one elastic component passes through the wafer cassette 1 to connect the first pressure plate 3 and the second pressure plate 31, so that when the second pressure plate 31 is pressed or released, the first pressure plate 3 also moves with the second pressure plate 31, pressing or releasing the solar cells. When the second pressure plate 31 is lifted, the elastic component compresses, the first pressure plate 3 moves away from the tray 2, the gap between the tray 2 and the first pressure plate 3 increases, and the solar cells stacked on the tray 2 are released. At this time, the tray 2 and the solar cells can be removed together by an automated device with a fork structure, or placed into the wafer cassette 1 from the outside. When the second pressure plate 31 is released, the elastic component returns to its original position, the first pressure plate 3 moves closer to the tray 2, and presses the solar cells stacked on the tray 2. After the solar cells are placed into the wafer cassette 1, the first pressure plate 3 presses the solar cells firmly to make them stable and without gaps.

[0036] In this embodiment, three elastic components are provided, spaced apart at the ends and the middle of the first pressure plate 3 and the second pressure plate 31. The first pressure plate 3 and the second pressure plate 31 are arranged parallel to each other with the support plate 2, so that when the second pressure plate 31 is lifted or released, the force exerted by the first pressure plate 3 on the solar cell is uniform, preventing damage to the solar cell due to uneven force.

[0037] The elastic components include: spring 32 and pressure plate shaft 33.

[0038] Spring 32 is sleeved on the outside of pressure plate shaft 33. One end of pressure plate shaft 33 is connected to the first pressure plate 3, and the other end moves through the wafer cassette 1 and connects to the second pressure plate 31. Spring 32 is located between the first pressure plate 3 and the wafer cassette 1, with its top end pressing against the top of the wafer cassette 1 and its bottom end pressing against the first pressure plate 3. When the second pressure plate 31 is lifted, pressure plate shaft 33 moves upward along with the second pressure plate 31, and spring 32 contracts and compresses towards the wafer cassette 1, causing the first pressure plate 3 to also move upward. When the second pressure plate 31 is released, spring 32 extends and returns to its original position, driving pressure plate shaft 33 to move downward, causing the first pressure plate 3 and the second pressure plate 31 to also move downward, until spring 32 returns to its original position until the first pressure plate 3 presses down on the solar cell.

[0039] The pressure plate shaft 33 can be cylindrical or square, and there is no restriction on the specific shape.

[0040] The elastic component also includes a limiting seat 34, which has a reserved hole corresponding to the cross-section of the pressure plate shaft 33. The limiting seat 34 is located on the outer side of the top of the wafer cassette 1, between the top of the wafer cassette 1 and the second pressure plate 31. The pressure plate shaft 33 moves through the reserved hole of the limiting seat 34. The limiting seat 34 limits the pressure plate shaft 33 so that when the second pressure plate 31 is pressed or lifted, the pressure plate shaft 33 can move vertically downward or upward, ensuring that the pressure of the first pressure plate 3 on the solar cell is uniform.

[0041] Spring 32 and telescopic shaft should be degreased and cleaned to prevent oil stains from contaminating the solar cells.

[0042] In a further embodiment, at least one support column 4 is provided on the top, bottom, and left and right sidewalls adjacent to the loading side of the tablet cassette 1. When the tablet cassette 1 is placed in different directions, it is supported by the support columns 4 provided on each side. In this embodiment, two support columns 4 are provided on each sidewall.

[0043] When solar cells are loaded into the loading cassette 1, the loading side of the loading cassette 1 faces forward. After the solar cells are loaded into the loading cassette 1, it may be placed in other directions during other processes. The four-sided support columns 4 allow the loading cassette 1 to be flipped in any direction, thereby changing the orientation of the loading side. The support columns 4 on one or more sides can also be fixed by other equipment to secure the loading cassette 1 and prevent it from shifting when the pressure plate mechanism of the loading cassette 1 is lifted or released.

[0044] A protective plate is provided on the outer wall of the tablet container 1 opposite to the loading side. This protective plate covers the outer wall of the tablet container 1 facing upwards, protecting the outer wall from wear. The tablet container 1 will experience wear from the chain rollers during transportation; the protective plate prevents this wear. Damaged protective plates can be directly replaced. The protective plate is made of stainless steel.

[0045] The tray 2 specifically includes a base and a support plate. The base is located at the bottom of the wafer cassette 1, and the support plate is placed on the base. The support plate is used to place the solar cells. The support plate is horizontally positioned, and its area is larger than that of the base, creating a step between the base and the support plate. When removing or placing the tray 2 from the wafer cassette 1, the fork structure of the automated equipment with a fork mechanism is inserted into the step between the base and the support plate to lift the tray 2. The tray 2 can be gently shaken to reduce the gaps between the solar cells and prevent coating from being applied to the surfaces of the solar cells that do not require coating, thus avoiding smearing.

[0046] In another embodiment, the tray 2 is connected to the wafer cassette 1 by a pin. To prevent the tray 2 from falling out during movement when the wafer cassette 1 is not loaded with solar cells, the pin simply connects the tray 2 and the wafer cassette 1, preventing the tray 2 from falling out. The pin method is also simple and convenient for picking up the tray 2.

[0047] The width of the wafer cassette 1 is set according to the width of the largest solar cell. When the width of the loading side is greater than the width of the solar cell, a pad is provided in the wafer cassette 1 on the left and / or right sides adjacent to the loading side. The thickness and number of pads are determined by the width of the solar cell to be coated. Adding pads to the left and / or right sides ensures that the width of the loading side corresponds to the solar cell to be coated, and / or when the depth of the loading side is greater than the length of the solar cell, a pad is provided on the side of the wafer cassette 1 opposite to the loading side. The pads reduce the gap between the wafer cassette 1 and the solar cell, preventing excessive coating gas from entering the wafer cassette 1 from between the solar cell and the wafer cassette 1, causing coating to be applied to areas where no coating is needed, resulting in a large area of ​​wrap-around coating on the main light-receiving surface of the solar cell. Wrap-around coating refers to the phenomenon that during the coating process, the coating material is deposited not only on the target surface but also in non-target areas. During coating, wrap-around coating should be minimized as much as possible, and the coating should be compatible with all commonly used silicon wafer sizes on the market.

[0048] Threaded blind holes are pre-drilled on the left and right sides of the loading plate and on the opposite side of the loading plate. The pad is fixed to the solar cell cassette 1 by screwing nuts into the threaded blind holes. When changing the size of the solar cells, the internal space can be modified by adding or removing pads.

[0049] Preferably, the material box body is made of aluminum, and the two sides adjacent to the loading side and the side opposite to the loading side are integrally formed, with all three sides being a single piece, thus strengthening the material box itself. At the process temperature, the solar cell box 1 will not deform, thus affecting the solar cell coating.

[0050] The height between the base of the solar cell loading box 1 and the first pressure plate 3 is greater than the height of the stacked one thousand solar cells. This means that the loading box 1 can hold at least one thousand solar cells, allowing the cut surfaces of all one thousand solar cells to be coated simultaneously. Depending on the actual situation, the height and size of the loading box can also be adjusted to accommodate other numbers of solar cells.

[0051] Compared with existing technologies, this utility model discloses a solar cell loading box, which includes a tray 2 and a pressing mechanism. The tray 2, used to hold solar cells, can be removed. Multiple solar cells can be stacked on the tray 2, and then the tray 2 and the solar cells are loaded together into the loading box 1. The pressing mechanism then presses the multiple solar cells together. The tray allows multiple solar cells to be placed into the loading box simultaneously, solving the problem of low efficiency caused by inserting solar cells one by one in existing technologies. The pressing mechanism reduces the gaps between solar cells, preventing large-scale coating on the main light-receiving surface of the solar cells. The pad reduces the gap between the loading box 1 and the solar cells, preventing excessive coating gas from entering the loading box 1 from between the solar cells and the loading box 1, coating areas that do not require coating, and causing large-scale coating on the main light-receiving surface of the solar cells.

[0052] It should be noted that the terminology used above is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0053] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0054] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0055] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0056] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0057] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tablet packaging box, characterized in that, include: A wafer loading box, wherein one side of the wafer loading box is not closed and serves as a loading side for placing solar cells; A tray, which is movably disposed at the bottom of the wafer cassette, is used to transport solar cells stacked on the tray. A pressure plate mechanism is provided on the top of the wafer cassette, and the first pressure plate of the pressure plate mechanism is located inside the wafer cassette. The first pressure plate is used to press down the solar cells on the tray.

2. The tablet loading box as described in claim 1, characterized in that, The pressure plate mechanism includes: a first pressure plate disposed inside the tablet box, a second pressure plate disposed outside the tablet box, and at least one elastic component that passes through the tablet box and elastically connects the first pressure plate and the second pressure plate. When the second pressure plate is lifted, the elastic component is compressed, the first pressure plate moves away from the tray, and the solar cells stacked on the tray are released. When the second pressure plate is released, the elastic component returns to its original state, and the first pressure plate moves closer to the tray, pressing the solar cells stacked on the tray.

3. The tablet loading box as described in claim 2, characterized in that, The elastic component includes a spring and a pressure plate shaft. The spring is sleeved on the outside of the pressure plate shaft. One end of the pressure plate shaft is connected to the first pressure plate, and the other end moves through the tablet box and is connected to the second pressure plate. The spring is located inside the tablet box and its top end abuts against the top of the tablet box, while its bottom end abuts against the first pressure plate.

4. The tablet loading box as described in claim 2, characterized in that, At least one support column is provided on the top, bottom, and two side walls adjacent to the loading side of the tablet box to support the tablet box in different orientations.

5. The tablet loading box as described in claim 1, characterized in that, The outer wall of the tablet box opposite to the loading side is provided with a protective plate. When the loading side of the tablet box is placed upward, the protective plate protects the tablet box.

6. The tablet loading box as described in claim 1, characterized in that, When the width of the loading side is greater than the width of the solar cell, a pad is provided on either side of the loading box adjacent to the loading side, and / or when the depth of the loading side is greater than the length of the solar cell, a pad is provided on the side of the loading box opposite to the loading side.

7. The tablet loading box as described in claim 1, characterized in that, The tray and the film box are connected by a pin.

8. The tablet loading box as described in claim 1, characterized in that, The tray includes a base disposed at the bottom of the film cassette and a support plate disposed on the base, the support plate covering the base to form a step between the base and the base.

9. The tablet loading box as described in claim 2, characterized in that, The first pressure plate and the second pressure plate are parallel to each other with respect to the support plate.

10. The tablet loading box as described in claim 3, characterized in that, The elastic component also includes a limiting seat, which is disposed on the outer side of the top of the tablet cassette. The pressure plate shaft moves through the limiting seat, and the limiting seat is located between the second pressure plate and the top of the tablet cassette.

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