Stringer, sizing device and bearing mechanism

Abstract

The application relates to a string welding machine, a sizing device and a bearing mechanism. The bearing mechanism comprises a bearing main body. The bearing main body is provided with a suction hole for communicating with a negative pressure device, and is also provided with a residue discharging hole penetrating through the bearing main body along the thickness direction of the bearing main body. The bearing mechanism is used for absorbing and fixing the battery piece through the suction hole, and realizes the position sizing of the battery piece under the movement adjustment of the deviation rectifying mechanism. Since the residue discharging hole extending along the thickness direction is arranged on the bearing main body, the broken residue generated in the turning operation of the battery piece can directly fall downwards through the residue discharging hole, the broken residue is effectively prevented from remaining on the bearing surface of the bearing main body, the broken residue is prevented from adhering to the battery piece and causing various defects such as scratches, hidden cracks and short circuits on the battery piece, the appearance quality of the battery piece is improved, the product yield is improved, and the cost is reduced.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to a string welding machine, a regulating device, and a supporting mechanism. Background Technology

[0002] In the production process of solar cells, the cells are shaped by a sizing device and then printed with adhesive dots. These dots are then welded to the adhesive dots using solder ribbons to connect the cells into strings. However, solar cells in related technologies often suffer from various defects during the welding process, such as cracks, breaks, scratches, and short circuits, resulting in low product yield and high production costs. Utility Model Content

[0003] Based on this, it is necessary to provide a stringing machine, a straightening device, and a carrying mechanism to address at least one of the problems in the prior art. This can help reduce defects such as cracks, breaks, scratches, and short circuits in the battery cells, thereby improving the product yield and reducing production costs.

[0004] On one hand, this application provides a bearing mechanism, including: a bearing body, the bearing body having an adsorption hole for communicating with a negative pressure device, the bearing body also having a slag discharge hole that penetrates the bearing body along the thickness direction of the bearing body.

[0005] In one embodiment, the slag discharge holes are provided in a plurality of manner, and the plurality of slag discharge holes are arranged at intervals on the supporting body.

[0006] In one embodiment, the support mechanism further includes support members; the support members are configured as at least two and spaced apart on the top surface of the support body; the support members are used to support the battery cells and can avoid the main grid of the battery cells.

[0007] In one embodiment, the support member is a support bar with a width of 3mm to 5mm.

[0008] In one embodiment, the load-bearing body and the support member are integrally injection molded; and / or, there are at least three support members, which are sequentially and spaced apart on the load-bearing body, and the first and last support members along the arrangement direction of the support members are rigid members.

[0009] In one embodiment, the adsorption hole extends from the carrier body to the side of the support member opposite to the carrier body.

[0010] In one embodiment, the adsorption holes are multiple and are arranged at intervals along the extension direction of the support member; the bearing body is provided with a main channel and multiple branch channels, the main channel is used to communicate with the negative pressure device, each branch channel is connected to the main channel, each branch channel is correspondingly arranged with each support member having adsorption holes, and each branch channel is connected to each adsorption hole of the corresponding support member.

[0011] In one embodiment, the support body is made of a transparent material.

[0012] On the other hand, this application also provides a straightening device, including the aforementioned bearing mechanism, as well as a correction mechanism and a negative pressure device. The correction mechanism is connected to the bearing body and can move to adjust the position of the bearing body. The negative pressure device is connected to the adsorption hole.

[0013] In another aspect, this application also provides a string welding machine, including the aforementioned straightening device.

[0014] The aforementioned stringing machine, aligning device, and supporting mechanism utilize an adsorption port on the supporting body to adsorb and fix the battery cells, and the positioning of the battery cells is aligned by the movement adjustment of the correction mechanism. Since the supporting body also has slag discharge holes extending along its thickness direction, debris generated during battery cell flipping and other operations can fall directly downwards through these holes, effectively preventing debris from remaining on the supporting surface of the supporting body. This prevents debris from adhering to the battery cells and causing various defects such as scratches, microcracks, and short circuits, improving the appearance quality of the battery cells, increasing the product yield, and reducing costs. Attached Figure Description

[0015] Figure 1 This is a structural diagram of a support mechanism according to an embodiment of this application.

[0016] Figure 2 for Figure 1 The diagram shown is a top view of the load-bearing mechanism.

[0017] Figure 3 for Figure 2 Sectional view of the structure at point AA.

[0018] Figure 4 for Figure 1 The diagram shown is a bottom view of the supporting mechanism.

[0019] 10. Bearing mechanism; 11. Bearing body; 111. Adsorption hole; 112. Slag discharge hole; 113. Main channel; 114. Branch channel; 115. Mounting hole; 12. Support component. Detailed Implementation

[0020] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0021] As described in the background section, solar cells in related technologies often suffer from various defects during the welding process, such as cracking, breakage, scratches, and short circuits. This results in low product yield and high production costs. The reason for this problem is that during the cell preparation process, the cells are typically placed on a support structure with adsorption capabilities, which holds the cells in place. A camera captures an image of the cell, and the support structure is used to calibrate the cell's position based on this image, ensuring the dispensing mechanism can accurately apply adhesive to the cell's surface. However, debris easily accumulates on the surface of the support structure, which adheres to the cell surface, leading to various defects such as cracking, breakage, and scratches in subsequent products. Especially when adhesive is required on both the front and back of the solar cell, it is generally necessary to straighten and apply adhesive to one side of the solar cell, then flip the solar cell to the other side, straighten the solar cell again, and apply adhesive to the other side of the solar cell. However, when the solar cell with adhesive has been applied to the support mechanism, it is very easy for debris from the support mechanism to adhere to it. This can lead to various defects such as cracks, breaks, scratches, and short circuits in the subsequent welding process, resulting in a low product yield and increased production costs.

[0022] Based on the above reasons, this application provides a stringing machine, a straightening device, and a supporting mechanism, which can help reduce defects such as cracks, breaks, scratches, and short circuits in battery cells, thereby improving product yield and reducing production costs.

[0023] See Figure 1 , Figure 2 and Figure 4 , Figure 1 A structural diagram of a support mechanism 10 according to an embodiment of this application is shown. Figure 2 It shows Figure 1 The top view of the supporting mechanism 10 shown is as follows. Figure 4 It shows Figure 1The diagram shows a bottom view of the support mechanism 10. One embodiment of this application provides a support mechanism 10, including a support body 11. The support body 11 can be used to support battery cells of various sizes, including but not limited to half-cell, three-cell, or four-cell cells. The specific size can be flexibly adjusted and set according to actual needs, and is not limited here. The support body 11 is provided with an adsorption hole 111 for communication with a negative pressure device. The support body 11 also has a slag discharge hole 112, which penetrates the support body 11 along its thickness direction.

[0024] It should be noted that the shape and size of the slag discharge hole 112 can be flexibly adjusted and designed according to actual production needs, as long as it can allow the slag generated during the production process to fall off smoothly and does not affect the support, positioning and adsorption functions of the battery cells.

[0025] The aforementioned support mechanism 10 has a support body 11 that adsorbs and fixes the battery cells through adsorption holes 111, and the battery cells are positioned correctly by the movement adjustment of the correction mechanism. Since the support body 11 also has slag discharge holes 112 extending along its thickness direction, debris generated during battery cell flipping and other operations can fall directly downwards through the slag discharge holes 112, effectively preventing debris from remaining on the support surface of the support body 11. This prevents debris from adhering to the battery cells and causing various defects such as scratches, microcracks, and short circuits, improving the appearance quality of the battery cells, increasing the product yield, and reducing costs.

[0026] For example, the number of slag discharge holes 112 can be one or more. The more slag discharge holes 112 there are, the more conducive it is for the slag to fall off the supporting body 11. When there are multiple slag discharge holes 112, the multiple slag discharge holes 112 are arranged at intervals on the supporting body 11, specifically, for example, evenly arranged on the supporting body 11, which can facilitate the timely removal of slag from different positions on the supporting body 11.

[0027] To prevent adhesive rubbing defects during the carrying of the battery cell by the support mechanism 10, the support mechanism 10, for example, further includes support members 12. Optionally, the number of support members 12 is not limited to one, but is, for example, at least two, spaced apart on the top surface of the support body 11. The top surface of the support body 11 is the side of the support body 11 closest to the battery cell when the battery cell is normally carried by the support mechanism 10. The battery cell, placed on the support mechanism 10, is stably supported by at least two support members 12 on the top surface of the support body. Furthermore, since the support members 12 can avoid contact with the main grid of the battery cell while supporting it, that is, avoid contact with the adhesive dots already printed on the main grid, contact between the support members 12 and the adhesive dots is prevented. Also, since the battery cell is lifted away from the top surface of the support body 11 by the support members 12, contact between the top surface of the support body 11 and the adhesive dots on the battery cell is prevented.

[0028] It should be noted that the “support member 12” in this embodiment can be a part of the “bearing body 11”, that is, the “support member 12” and the “other parts of the bearing body 11” are integrally formed and manufactured; or it can be an independent component that can be separated from the “other parts of the bearing body 11”, that is, the “support member 12” can be manufactured independently and then combined with the “other parts of the bearing body 11” to form a whole.

[0029] For example, the support member 12 may include, but is not limited to, any one or more combinations of support bars, support ribs, protrusions, protrusions, support columns, and support blocks, as long as it can support the battery cell and form a gap between the battery cell and the top surface of the supporting body 11 to prevent the adhesive dots on the battery cell from contacting the supporting body 11.

[0030] In one embodiment, the solar cell has multiple main grids extending from one end of the solar cell to the other along a first direction. The multiple main grids are arranged at intervals along a second direction of the solar cell. The first and second directions are perpendicular to each other. To enable soldering to the grid, multiple adhesive dots are printed on each main grid, and these dots are arranged at intervals along the extension direction of the main grid.

[0031] For example, the support member 12 includes a support strip. The support strip can stably support the battery cell, and the support strip has a slender structure to facilitate avoidance of the main grid of the battery cell. There are multiple support members 12, each extending along a third direction of the supporting body 11, and the multiple support members 12 are arranged sequentially at intervals along a fourth direction of the supporting body 11. The third direction is as follows... Figure 2 As shown by arrow X in the image, the fourth direction is as follows: Figure 2 As shown by arrow Y, the third direction and the fourth direction are set at an angle.

[0032] Specifically, the support members 12 are evenly spaced on the supporting body 11, with adjacent support members 12 arranged parallel to each other. The distance between two adjacent support members 12 is S1, and the distance between two adjacent main grids on the solar cell is S2. S1 can be adjusted and set according to S2; for example, S1 / S2 is a natural number. Specifically, S1 = S2. Thus, when the supporting mechanism 10 carries the solar cell, the area between two adjacent main grids of each support member 12 abuts against the solar cell, while each support member 12 avoids the main grids on the solar cell, thereby avoiding adhesive dots on the solar cell. Of course, the ratio of S1 to S2 does not need to be a natural number; it can be any other value, as long as the supporting mechanism 10 avoids the main grids on the solar cell when carrying it.

[0033] It should be noted that the number of support members 12 can be the same as or different from the number of main grids of the solar cell, and is not limited here. The length of the support members 12 can be the same as or different from the length of the main grids of the solar cell, and is not limited here.

[0034] Please see Figure 1 and Figure 2 For example, when the support member 12 is a support strip, the width of the support strip is W, which includes, but is not limited to, 3mm to 5mm, specifically, 3mm, 3.5mm, 4mm, 4.5mm, or 5mm. Thus, on the one hand, since the distance between two adjacent main grids on the solar cell is 7.5mm, and the maximum width of the support strip is 5mm, meaning the width of the support strip is less than the distance between two adjacent main grids, the support member 12 can be positioned in the area between two adjacent main grids to support the solar cell, avoiding adhesive dots and preventing rubbing, while also stably supporting the solar cell. On the other hand, the width of the support strip is greater than 3mm, and the aperture of the adsorption hole 111 is, for example, 1mm to 3mm. This means the width of the support strip is large enough to accommodate the adsorption hole 111 while ensuring structural strength and achieving stable adsorption and fixation of the solar cell.

[0035] For example, both the load-bearing body 11 and the support member 12 are made of plastic, including but not limited to, and are integrally injection molded. Thus, the material cost of the load-bearing mechanism 10 is low, making it suitable for mass production.

[0036] Optionally, both the load-bearing body 11 and the support member 12 may be made of, for example, PVC (polyvinyl chloride), TPE (thermoplastic elastomer), or silicone.

[0037] For example, there are at least three support members 12, specifically three, four, five, six or more. At least three support members 12 are sequentially and spaced apart from the bearing body 11. The first and last support members 12 along the arrangement direction of the support members 12 are rigid components. Rigid components are, for example, rigid plastic components. The hardness of the first and last support members 12 is greater than the hardness of the other support members 12 and the bearing body 11. During production, compared to other support members and the bearing body 11, the first and last support members 12, located at opposite edges along the arrangement direction of the support members 12, have a higher probability of interfering with or colliding with the external transmission mechanism. Therefore, in this embodiment, setting the first and last support members 12 as rigid components enhances the overall mechanical strength of the component, prevents damage to the bearing mechanism 10 due to external forces during use, improves the durability of the bearing mechanism 10, extends its service life, reduces downtime caused by frequent replacements of the bearing mechanism 10, and thus improves production efficiency.

[0038] Based on the aforementioned embodiments, the adsorption hole 111 extends, for example, from the supporting body 11 to the side of the support member 12 opposite to the supporting body 11, that is, to the top surface of the support member 12. In this way, the support member 12 can ensure the adsorption and fixation effect of the battery cell while supporting the battery cell, thereby enabling the battery cell to remain stable when it is straightened by the correction mechanism.

[0039] It should be noted that in this embodiment, adsorption holes 111 can be provided on each support member 12; of course, adsorption holes 111 can be provided on one, two or other numbers of support members 12, and adsorption holes 111 can be not provided on the other support members 12. The specific setting is not limited here, and can be adjusted and set according to actual needs, as long as the adsorption and fixing of the battery cell can be achieved.

[0040] Based on the aforementioned embodiment, the support member 12 has multiple adsorption holes 111, and these multiple adsorption holes 111 are arranged sequentially at intervals along the extending direction of the support member 12. In this way, when the multiple adsorption holes 111 on the support member 12 simultaneously adsorb the battery cells, a good adsorption and fixation effect on the battery cells can be ensured.

[0041] Please see Figure 2 and Figure 3 Based on the aforementioned embodiments, the supporting body 11 is provided with a main channel 113 and multiple branch channels 114. The number of main channels 113 is one or more, and is not limited here. The main channel 113 is used to communicate with a negative pressure device. Each branch channel 114 is connected to the main channel 113, and the main channel 113 causes each branch channel 114 to generate negative pressure. Each branch channel 114 is correspondingly arranged with each support member 12 having an adsorption hole 111. Specifically, along the thickness direction of the supporting body 11, the branch channel 114 is positioned opposite to the support member 12. The branch channel 114 communicates with each adsorption hole 111 of the corresponding support member 12, and the branch channel 114 can cause each adsorption hole 111 of the support member 12 to generate negative pressure, thereby realizing the adsorption and fixation of the battery cell.

[0042] For example, the supporting body 11 is provided with a slag discharge hole 112 at the position between two adjacent support members 12, and the number of slag discharge holes 112 at the position between two adjacent support members 12 is not limited to one, for example, two, three or more.

[0043] For example, the support body 11 is made of a transparent material. In this way, the transparent material allows operators to directly observe the processing status of the battery cells on the support body 11 and the situation of debris falling, so as to detect abnormalities in a timely manner and deal with them.

[0044] Based on the aforementioned embodiment, the support member 12 is made of a transparent material. Thus, the transparent material of the support member 12 does not obstruct the operator's observation of the battery cell processing status and the falling debris.

[0045] For example, the support body 11 is detachably mounted on the correction mechanism. This allows the support mechanism 10 to be replaced, reducing maintenance costs. Specifically, the support body 11 is provided with mounting holes 115. The number of mounting holes 115 is not limited. The support body 11 is connected to the correction mechanism via fasteners passing through the mounting holes 115. The position, size, and number of mounting holes 115 can be adaptively adjusted and set according to the installation location of the correction mechanism to facilitate disassembly and assembly.

[0046] In another embodiment, this application also provides a straightening device, including the support mechanism 10 of any of the above embodiments, and further including a correction mechanism and a negative pressure device. The correction mechanism is connected to the support body 11 and can move to adjust the position of the support body 11. The negative pressure device is connected to the adsorption hole 111.

[0047] In the aforementioned straightening device, the supporting body 11 adsorbs and fixes the battery cells through the adsorption holes 111, and the position of the battery cells is straightened by the movement adjustment of the correction mechanism. Since the supporting body 11 is also provided with slag discharge holes 112 extending along the thickness direction, the debris generated during operations such as battery cell flipping can fall directly downward through the slag discharge holes 112, effectively preventing debris from remaining on the bearing surface of the supporting body 11. This prevents debris from adhering to the battery cells and causing various defects such as scratches, microcracks, and short circuits, improving the appearance quality of the battery cells, increasing the product yield, and reducing costs.

[0048] For example, the alignment device also includes an image acquisition mechanism and a controller. The image acquisition mechanism includes, but is not limited to, a camera. The image acquisition mechanism is used to acquire images of the battery cells on the carrier mechanism 10. The image acquisition mechanism is electrically connected to the controller. The controller can determine whether the position of the battery cells is accurate based on the images of the battery cells acquired by the image acquisition mechanism, and obtain correction data when the position of the battery cells is inaccurate. The controller is also electrically connected to a correction mechanism, and the controller is also used to control the action of the correction mechanism based on the correction data to move and adjust the position of the battery cells, thereby achieving alignment of the battery cell position. When the position of the battery cells is aligned, the accuracy of the printed adhesive dots on the battery cells can be ensured.

[0049] In yet another embodiment, this application also provides a string welding machine, including the conditioning apparatus of any of the above embodiments.

[0050] In the aforementioned stringing machine, the supporting body 11 adsorbs and fixes the battery cells through the adsorption holes 111, and the position of the battery cells is aligned by the movement adjustment of the correction mechanism. Since the supporting body 11 is also provided with slag discharge holes 112 extending along the thickness direction, the debris generated during operations such as battery cell flipping can fall directly downward through the slag discharge holes 112, effectively preventing debris from remaining on the bearing surface of the supporting body 11. This prevents debris from adhering to the battery cells and causing various defects such as scratches, microcracks, and short circuits, improving the appearance quality of the battery cells, increasing the product yield, and reducing costs.

[0051] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and 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 of this application.

[0052] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A load-bearing mechanism (10), characterized in that, include: The supporting body (11) is provided with an adsorption hole (111) for communicating with a negative pressure device. The supporting body (11) is also provided with a slag discharge hole (112) which penetrates the supporting body (11) along the thickness direction.

2. The bearing mechanism (10) according to claim 1, characterized in that, The slag discharge holes (112) are provided in multiple ways, and the multiple slag discharge holes (112) are arranged at intervals on the supporting body (11).

3. The bearing mechanism (10) according to claim 1, characterized in that, The supporting mechanism (10) further includes a support member (12); the support member (12) is configured as at least two and spaced apart on the top surface of the supporting body (11); the support member (12) is used to support the battery cell and can avoid the main grid of the battery cell.

4. The bearing mechanism (10) according to claim 3, characterized in that, The support member (12) is a support bar with a width of 3mm to 5mm.

5. The bearing mechanism (10) according to claim 3, characterized in that, The supporting body (11) and the supporting member (12) are integrally injection molded; and / or, there are at least three supporting members (12), and at least three supporting members (12) are arranged sequentially at intervals on the supporting body (11), and the first and last supporting members (12) along the arrangement direction of the supporting members (12) are rigid parts.

6. The bearing mechanism (10) according to claim 3, characterized in that, The adsorption hole (111) extends from the bearing body (11) to the side of the support member (12) opposite to the bearing body (11).

7. The bearing mechanism (10) according to claim 6, characterized in that, The adsorption holes (111) are multiple and are arranged sequentially at intervals along the extension direction of the support (12); the bearing body (11) is provided with a main channel (113) and multiple branch channels (114). The main channel (113) is used to communicate with the negative pressure device. Each branch channel (114) is connected to the main channel (113). Each branch channel (114) is correspondingly arranged with each support (12) having an adsorption hole (111), and the branch channel (114) is connected with each adsorption hole (111) of the corresponding support (12).

8. The bearing mechanism (10) according to claim 1, characterized in that, The supporting body (11) is made of transparent material.

9. A regularization device, characterized in that, The device includes the bearing mechanism (10) as described in any one of claims 1 to 8, and further includes a correction mechanism and a negative pressure device. The correction mechanism is connected to the bearing body (11), and the correction mechanism can move and adjust the position of the bearing body (11). The negative pressure device is connected to the adsorption hole (111).

10. A string welding machine, characterized in that, Includes the regularization device as described in claim 9.

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