Photovoltaic module off-line tool
By designing a fixture for unloading photovoltaic modules, and using supports and traction mechanisms to control the arched shape of the modules, the problem of damage caused by the central depression of the modules was solved, and a safe and efficient unloading operation was achieved.
Patent Information
- Application Number
- CN202520646640.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-04-08
AI Technical Summary
During the photovoltaic module production process, existing technology causes the module to be concave in the middle, forming a large arc, which easily leads to defects such as hidden cracks, paralleling, series connection, and cracking. In addition, the back glass is easily broken, posing a safety hazard.
Design a photovoltaic module unloading fixture, including a first bracket and a second bracket. The brackets are driven to move closer together by a traction mechanism to form a slightly arched shape in the middle of the photovoltaic module. The curvature is controlled to avoid concavity. A winding shaft and a traction line are used to bring the brackets closer together.
This effectively avoids the bending of the photovoltaic modules in the middle due to gravity during the production process, reduces the risk of cell damage, and improves safety and production efficiency.
Smart Images
Figure CN223973611U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of solar cell production equipment technology, and in particular to tooling for photovoltaic module production line assembly. Background Technology
[0002] The manufacturing process of photovoltaic (PV) modules involves multiple steps, and these modules are transported between steps via conveyor lines. When the capacity of a current step exceeds that of a subsequent step, material blockages can occur on the conveyor lines. In this case, the PV modules need to be removed from the conveyor line—a process known as unloading—to ensure the conveyor lines can continue operating normally.
[0003] Currently, the method for removing photovoltaic (PV) modules from the production line involves two people standing at opposite ends of the module, lifting both ends, and then carrying the module off the conveyor line. However, for some large-sized PV modules, simply lifting them from both ends can cause the middle section to form a downward-curving arc. This not only easily leads to defects such as microcracks, paralleling, series connection issues, and cell breakage within the PV module, but also, since double-glass PV modules use glass as the material for both the front and back, and the back glass has a lead wire hole in the middle, the middle part of the back is relatively fragile. Careless lifting could easily cause the back glass to break, increasing material loss and causing injury to personnel. Utility Model Content
[0004] Therefore, it is necessary to provide a photovoltaic module unloading fixture to address the issue of easy damage during photovoltaic module unloading.
[0005] This application provides a photovoltaic module off-line fixture, including:
[0006] The first bracket is used to support one end of the photovoltaic module;
[0007] The second support is spaced apart from the first support and is used to support the other end of the photovoltaic module.
[0008] A traction mechanism is provided, which connects the first support and the second support, and is used to drive the first support and the second support closer to each other.
[0009] The technical solution will be further explained below:
[0010] In one embodiment, the traction mechanism includes:
[0011] A take-up shaft, which is rotatably disposed on one of the first bracket and the second bracket;
[0012] A traction line, one end of which is connected to the take-up shaft and can be wound around the take-up shaft, and the other end of which is connected to the other of the first bracket and the second bracket.
[0013] In one embodiment, the traction mechanism includes:
[0014] Two take-up shafts, one of which is rotatably mounted on the first bracket, and the other of which is rotatably mounted on the second bracket;
[0015] A traction line, one end of which is connected to a take-up reel, and the other end of which is connected to another take-up reel, wherein the traction line can be wound onto either take-up reel.
[0016] In one embodiment, the number of traction lines is at least two, the ends of each traction line are connected at intervals to the take-up shaft, and the portions of each traction line located on the first bracket and the second bracket are arranged parallel to each other.
[0017] In one embodiment, both the first support and the second support include:
[0018] The main body has a receiving cavity, and the winding shaft is rotatably disposed in the receiving cavity;
[0019] The support portion is connected to the main body portion and has a bearing surface for supporting the photovoltaic module.
[0020] In one embodiment, both ends of the main body are provided with limiting portions, the supporting portion is disposed between the two limiting portions, and both the limiting portions and the main body are higher than the bearing surface.
[0021] In one embodiment, the limiting portion has a threading hole that communicates with the accommodating cavity and is used for the traction wire to pass through.
[0022] In one embodiment, one end of the take-up shaft extends through the main body and is connected to a crank handle.
[0023] In one embodiment, the accommodating cavity has an opening for the intake and exhaust of a take-up shaft, and both the first bracket and the second bracket further include a cover, which is detachably disposed on the main body and closes the opening.
[0024] In one embodiment, the length of the bearing surface is 1000mm-1250mm; the width of the bearing surface is 30mm-70mm.
[0025] In the aforementioned photovoltaic module off-line fixture, one end of the photovoltaic module is supported by a first bracket, and the other end is supported by a second bracket. A traction mechanism pulls the first and second brackets closer together, causing the photovoltaic module to form a slightly arched shape in the middle during transport. The distance between the first and second brackets is controlled by the traction mechanism to regulate the arch curvature in the middle of the photovoltaic module. This prevents the middle of the photovoltaic module from bending downwards at a large angle due to gravity during transport, thus reducing the risk of defects such as microcracks, paralleling, series connection issues, and cell breakage within the photovoltaic module caused by this downward bending. Therefore, it avoids damage to the photovoltaic module during off-line transport. Attached Figure Description
[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.
[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are shown as examples only and not necessarily to scale. In the accompanying drawings:
[0029] Figure 1 This is a tooling diagram of a photovoltaic module rolling off the production line according to one embodiment.
[0030] Figure 2 This is a schematic diagram of the structure of a first or second bracket in one embodiment.
[0031] Figure 3 This is a force diagram of a photovoltaic module being lifted by a photovoltaic module unloading fixture, according to one embodiment.
[0032] Figure 4 This is a top view of a first or second bracket according to one embodiment.
[0033] Explanation of reference numerals in the attached figures:
[0034] 11. First support; 111. Main body; 1111. Receiving cavity; 112. Supporting part; 1121. Bearing surface; 113. Limiting part; 1131. Threading hole; 12. Second support; 20. Traction mechanism; 21. Rewinding shaft; 22. Traction line; 23. Handle; 30. Photovoltaic module. Detailed Implementation
[0035] 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.
[0036] 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.
[0037] 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.
[0038] 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.
[0039] 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.
[0040] 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.
[0041] As mentioned earlier, in the traditional method of removing photovoltaic modules 30 from the production line, at least two workers are required to lift both ends of the photovoltaic module 30 by hand. After lifting both ends of the photovoltaic module 30, due to the influence of the photovoltaic module 30's own weight, the middle of the photovoltaic module 30 will form a downward concave arc. Moreover, the heavier and larger the photovoltaic module 30 is, the higher the downward concave arc of the photovoltaic module 30 will be. Personnel cannot actively control the downward concave arc of the photovoltaic module 30.
[0042] Based on this, one embodiment of this application provides a photovoltaic module unloading fixture for assisting workers in handling photovoltaic modules 30. Specifically, see [link to relevant documentation]. Figures 1 to 3 , Figure 1 A photovoltaic module unloading fixture according to an embodiment of this application is shown. The photovoltaic module unloading fixture of one embodiment includes a first support 11, a second support 12, and a traction mechanism 20. The first support 11 supports one end of the photovoltaic module 30, the second support 12 is spaced apart from the first support 11 and supports the other end of the photovoltaic module 30, and the traction mechanism 20 connects the first support 11 and the second support 12, and is used to drive the first support 11 and the second support 12 closer together.
[0043] Specifically, when it is necessary to remove the photovoltaic module 30 from the conveyor line, the traction mechanism 20 is first fully released from the first support 11 and the second support 12. Then, the first support 11 is placed under one end of the photovoltaic module 30, and the second support 12 is placed under the other end of the photovoltaic module 30. The traction mechanism 20 then drives the first support 11 and the second support 12 closer together until the middle of the photovoltaic module 30 slightly arches to form an upward arc. At this point, two people can lift the first support 11 and the second support 12 respectively to remove the photovoltaic module 30 from the conveyor line.
[0044] Furthermore, such as Figure 3 As shown, a force analysis of the photovoltaic module 30 reveals that when the middle of the photovoltaic module 30 slightly arches to form an upward arc, the weight G of the photovoltaic module 30 and the tension f brought about by the arch are transferred to the first support 11 and the second support 12 through molecular transmission. Correspondingly, the first support 11 and the second support 12 will generate an upward supporting force F on the photovoltaic module 30. Decomposing the supporting force F, the vertical component F1 of the supporting force F can offset the weight G of the photovoltaic module 30. This component F1 is the force required for the worker to lift the first support 11 or the second support 12. The horizontal component F2 of the supporting force F can offset the force of the photovoltaic module 30. The tension f brought about by the arched shape in the middle of the module 30, and the component force F2 is the traction force of the traction mechanism 20 pulling the first support 11 and the second support 12 closer to each other. Therefore, during the handling of the photovoltaic module 30, by using the photovoltaic module unloading fixture, the worker can keep the middle of the photovoltaic module 30 in an upward arched shape without adding extra lifting force. Furthermore, since the distance at which the traction mechanism 20 pulls the first support 11 and the second support 12 closer to each other is controllable, the arc of the arch formed in the middle of the photovoltaic module 30 is also controllable. The worker can control the arc of the arch formed in the middle of the photovoltaic module 30 within the strength tolerance range of the photovoltaic module 30.
[0045] In the aforementioned photovoltaic module unloading fixture, one end of the photovoltaic module 30 is supported by the first bracket 11, and the other end is supported by the second bracket 12. The first bracket 11 and the second bracket 12 are then pulled closer together by the traction mechanism 20, so that the photovoltaic module 30 takes on a slightly arched shape in the middle during transportation. The distance between the first bracket 11 and the second bracket 12 can be controlled by the traction mechanism 20 to control the arc of the arc formed in the middle of the photovoltaic module 30. This avoids the large downward bending of the middle of the photovoltaic module 30 due to gravity during transportation, thereby reducing the occurrence of defects such as microcracks, paralleling, series connection, and cell breakage in the photovoltaic module 30 caused by the large downward bending. Therefore, it can avoid the problem of damage to the photovoltaic module 30 when it is unloaded.
[0046] See Figure 1 as well as Figure 2 In one embodiment, the traction mechanism 20 further includes two take-up shafts 21 and a traction line 22. One take-up shaft 21 is rotatably mounted on the first support 11, and the other take-up shaft 21 is rotatably mounted on the second support 12. One end of the traction line 22 is connected to one take-up shaft 21, and the other end of the traction line 22 is connected to the other take-up shaft 21. The traction line 22 can be wound onto either take-up shaft 21. Thus, after placing the first support 11 below one end of the photovoltaic module 30 and the second support 12 below the other end of the photovoltaic module 30, the traction line 22 can be wound onto the take-up shaft 21 by rotating it, thereby driving the first support 11 and the second support 12 closer to each other. Exemplarily, either take-up shaft 21 can be rotated when rotating it for convenient operation. Both take-up shafts 21 can also be rotated simultaneously to speed up the winding speed of the traction line 22, thereby increasing efficiency.
[0047] Understandably, in another embodiment, the traction mechanism 20 may also consist of a single take-up shaft 21, rotatably mounted on either the first bracket 11 or the second bracket 12. One end of the traction line 22 is connected to and wound around the take-up shaft 21, while the other end of the traction line 22 is connected to the other of the first bracket 11 or the second bracket 12. Thus, by rotating the take-up shaft 21 onto the first bracket 11 to wind up the traction line 22, the first bracket 11 and the second bracket 12 can be driven closer together.
[0048] See Figure 1 The number of traction lines 22 is at least two, and the ends of each traction line 22 are connected to the take-up shaft 21 at intervals, with the portions of each traction line 22 located on the first bracket 11 and the second bracket 12 arranged parallel to each other. For example, the number of traction lines 22 is two, and the two traction lines 22 are respectively connected to the two ends of the take-up shaft 21, thereby ensuring that the forces on both sides are balanced when the first bracket 11 and the second bracket 12 are driven closer to each other, allowing the first bracket 11 and the second bracket 12 to approach each other smoothly and evenly. For example, the traction lines 22 can be cables.
[0049] It is worth noting that in other embodiments, the traction mechanism 20 may also be a telescopic rod or other driving mechanism, as long as it can drive the first bracket 11 and the second bracket 12 to move closer to each other, and there is no limitation here.
[0050] Optionally, see Figure 2In one embodiment, both the first support 11 and the second support 12 include a main body 111 and a supporting part 112. The main body 111 has a receiving cavity 1111, and the winding shaft 21 is rotatably disposed in the receiving cavity 1111. The supporting part 112 is connected to the main body 111 and has a bearing surface 1121 for supporting the photovoltaic module 30. By installing the winding shaft 21 in the receiving cavity 1111, space is saved, making the overall appearance of the first support 11 and the second support 12 more regular and convenient for workers to handle and lift.
[0051] Furthermore, both ends of the main body 111 are provided with limiting portions 113. Specifically, the limiting portions 113 protrude towards the other main body 111, that is, the main body has a C-shaped structure. The supporting portion 112 is disposed between the two limiting portions 113, and the height of the limiting portions 113 and the height of the main body 111 are both higher than the bearing surface 1121. Thus, when the end of the photovoltaic module 30 is placed on the bearing surface 1121, the main body 111 can abut against the short side of the photovoltaic module 30 to limit the photovoltaic module 30 in the length direction, and the two limiting portions 113 can abut against the two long sides of the photovoltaic module 30 respectively to limit the photovoltaic module 30 in the width direction, thereby fixing the end of the photovoltaic module 30 on the supporting portion 112 and preventing the photovoltaic module 30 from falling during transportation.
[0052] See also Figure 2 In one embodiment, the limiting part 113 has a threading hole 1131 communicating with the receiving cavity 1111 and for the traction wire 22 to pass through. Specifically, the threading hole 1131 is formed on the end face of the limiting part 113 facing the other main body part 111. Further, both limiting parts 113 on the main body part 111 have threading holes 1131, and the two traction wires 22 pass through the threading holes 1131 one by one into the receiving cavity 1111 and are connected to the winding shaft 21. By forming threading holes 1131 in the limiting part 113, the traction wire 22 can pass through the threading holes 1131 into the receiving cavity 1111 and be connected to the winding shaft 21. The hole wall of the threading hole 1131 can limit the traction wire 22, preventing misalignment or tangling of the traction wire 22 during winding, and ensuring the smoothness of winding or releasing the traction wire 22.
[0053] See Figure 2 In one embodiment, one end of the take-up shaft 21 extends through the main body 111 and is connected to a crank handle 23. The crank handle 23 allows the take-up shaft 21 to be rotated with less effort, thereby facilitating operation. Exemplarily, in one embodiment, the crank handle 23 may be provided on only one of the take-up shafts 21; in other embodiments, the crank handle 23 may be provided on both take-up shafts 21.
[0054] Optionally, in one embodiment, the accommodating cavity 1111 has an opening for the winding shaft 21 to enter and exit. Both the first bracket 11 and the second bracket 12 also include a cover (not shown), which is detachably disposed on the main body 111 and closes the opening. The opening facilitates the maintenance and replacement of the winding shaft 21, and the cover closes the opening to prevent external sewage and dust from contaminating the winding shaft 21.
[0055] See Figure 4 Optionally, in one embodiment, the length S of the supporting surface 1121 is 1000mm-1250mm, for example, it can be 1000mm, 1100mm, 1150mm, 1200mm or 1250mm, thereby ensuring that the supporting surface 1121 can accommodate photovoltaic modules 30 of most width dimensions. The width H of the supporting surface 1121 is 30mm-70mm, for example, it can be 30mm, 40mm, 50mm, 60mm or 70mm, thereby controlling costs while ensuring sufficient contact area between the supporting surface 1121 and the photovoltaic module 30, improving the stability of the supporting surface 1121 in supporting the photovoltaic module 30.
[0056] Optionally, in one embodiment, the length of the main body 111 is 1100mm-1300mm, the width is 50mm-100mm, the height of the main body 111 is 40mm-60mm, and the wall thickness of the main body 111 is ≤5mm, thereby ensuring that the main body 111 has sufficient structural strength while controlling costs.
[0057] Furthermore, the first support 11 and the second support 12 can be made of stainless steel, plastic materials such as PET (thermoplastic polyester), PE (polyethylene), PVC (polyvinyl chloride), PP (polypropylene), or PS (polystyrene), etc., to ensure the structural strength of the first support 11 and the second support 12.
[0058] 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.
[0059] 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 photovoltaic module off-line tooling characterized by, The utility model relates to a photovoltaic module supporting device, comprising: a first support (11) for supporting one end of a photovoltaic module (30); a second support (12) spaced apart from the first support (11) for supporting the other end of the photovoltaic module (30); a traction mechanism (20) connecting the first support (11) and the second support (12) for driving the first support (11) and the second support (12) to move closer to each other.
2. The photovoltaic module offline tooling of claim 1, wherein, The traction mechanism (20) comprises: a winding shaft (21) rotatably arranged in one of the first support (11) or the second support (12); a traction line (22) having one end connected to the winding shaft (21) and being capable of winding on the winding shaft (21), and the other end connected to the other one of the first support (11) or the second support (12).
3. The photovoltaic module offline tooling of claim 1, wherein, The traction mechanism (20) comprises: two winding shafts (21), one of which is rotatably arranged in the first support (11), and the other of which is rotatably arranged in the second support (12); a traction line (22) having one end connected to one winding shaft (21) and the other end connected to the other winding shaft (21), and being capable of winding on either winding shaft (21).
4. The photovoltaic module offline tooling of claim 2 or 3, wherein, The number of traction lines (22) is at least two, the ends of each traction line (22) are connected to the winding shaft (21) at intervals, and the portions of each traction line (22) between the first support (11) and the second support (12) are arranged in parallel.
5. The photovoltaic module offline tooling of claim 2 or 3, wherein, The first support (11) and the second support (12) each comprise: a main body portion (111) having a receiving cavity (1111) in which the winding shaft (21) is rotatably arranged; a supporting portion (112) connected to the main body portion (111) and having a bearing surface (1121) for supporting the photovoltaic module (30).
6. The photovoltaic module offline tooling of claim 5, wherein, Both ends of the main body portion (111) further protrude to form limiting portions (113), the supporting portion (112) is arranged between the two limiting portions (113), and the limiting portions (113) and the main body portion (111) are higher than the bearing surface (1121).
7. The photovoltaic module inline tooling of claim 6, wherein, The limiting portions (113) have through holes (1131) in communication with the receiving cavities (1111) and for the traction line (22) to pass through.
8. The photovoltaic module offline tooling of claim 5, wherein, One end of the winding shaft (21) protrudes out of the main body portion (111) and is connected to a crank (23).
9. The photovoltaic module inline tooling of claim 5, wherein, The accommodating cavity (1111) has an opening for the winding shaft (21) to enter and exit, and the first support (11) and the second support (12) each further comprises a cover body which is detachably arranged on the body part (111) and closes the opening.
10. The photovoltaic module inline tooling of claim 5, wherein, The length of the bearing surface (1121) is 1000mm-1250mm; and the width of the bearing surface (1121) is 30mm-70mm.