A lamination misregistration detection apparatus, lamination production system

Abstract

The utility model provides a kind of laminated member misplacement detection device, laminated member production system, it is related to photovoltaic technical field to solve laminated member misplacement phenomenon difficult to be efficiently detected technical problem.The laminated member misplacement detection device, including pedestal, conducting part and the first stop piece and the second stop piece of relative arrangement, along preset direction, first stop piece, second stop piece are slidably arranged on pedestal;Conducting part is arranged on first stop piece;In preset direction, second stop piece has insulating section and at least one conducting section, and switch circuit is formed between conducting part and second stop piece;When the laminated member of detection is in misplacement state, the end of conducting part away from first stop piece and conducting section abut;When the laminated member of detection is in alignment state, the end of conducting part away from first stop piece and insulating section abut.The laminated member misplacement detection device can be efficiently detected, reduce the probability of misplacement laminated member flowing into normal component process.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and in particular to a lamination misalignment detection device and a lamination production system. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] During the manufacturing process of photovoltaic modules, especially in double-glass photovoltaic modules, before lamination, after the cover glass and back glass are stacked together, misalignment between the two glass panels is inevitable due to the multiple processes involved, resulting in defective modules.

[0004] In related technologies, manually checking whether the cover glass and back glass of the laminated components are misaligned is inefficient. Utility Model Content

[0005] The purpose of this invention is to provide a device for detecting misalignment in laminated parts and a production system for laminated parts, so as to solve the technical problem that misalignment in laminated parts is difficult to detect efficiently.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] In a first aspect, this utility model provides a stacked component misalignment detection device, including a base, a conductive component, and a first stop and a second stop disposed opposite to each other, wherein the first stop and the second stop are slidably disposed on the base along a preset direction;

[0008] The conductive element is disposed on the first stop element;

[0009] In the predetermined direction, the second stop member has an insulating section and at least one conductive section, and a switching circuit is formed between the conductive member and the second stop member;

[0010] When the detected laminated component is in a misaligned state, the end of the conductive component that is away from the first stop component abuts against the conductive segment.

[0011] When the detected laminate is in an aligned state, the end of the conductive element away from the first stop member abuts against the insulating segment.

[0012] According to at least one embodiment of the present invention, the detection device further includes two return springs, one end of each return spring being connected to the base and the other end being connected to a corresponding part of the first stop member or the second stop member.

[0013] According to at least one embodiment of the present invention, both the first stop member and the second stop member have a stop end that abuts against the laminated member, and both the first stop member and the second stop member have a guide portion on the stop end.

[0014] According to at least one embodiment of the present invention, the guide portion includes a roller; or,

[0015] The guide portion is a slope formed at the stop end.

[0016] According to at least one embodiment of the present invention, the second stop member has a groove on its surface facing the first stop member, the groove extends along the preset direction, and the insulating segment and the conductive segment are formed in the groove.

[0017] According to at least one embodiment of the present invention, the detection device further includes a controller, and the switching circuit is electrically connected to the controller; or,

[0018] The detection device also includes an alarm device, which is communicatively connected to the switching circuit.

[0019] According to at least one embodiment of the present invention, the detection device further includes a linear motion device, the base is disposed on the linear motion device, and the base moves along the preset direction.

[0020] According to at least one embodiment of this utility model, the length of the insulating segment in the preset direction ranges from 1 mm to 2 mm; and / or,

[0021] The number of conductive segments is two, and the insulating segment is located between the two conductive segments.

[0022] Secondly, this utility model provides a laminated part production system, including a conveying device and at least one detection device, wherein the detection device is the detection device described in the first aspect;

[0023] The conveying device is used to pass the laminated component past the side of the detection device.

[0024] According to at least one embodiment of the present invention, the detection device includes a controller. When the detection device detects that the laminated component is in a misaligned state, the controller is used to control the conveying device to convey the laminated component to a preset workstation.

[0025] In one or more technical solutions provided in the exemplary embodiments of this utility model, at least one of the following beneficial effects can be achieved.

[0026] The laminate misalignment detection device of this exemplary embodiment includes a first stop and a second stop disposed on a base and arranged opposite to each other. These two stopes can slide along the base in a preset direction. When the two laminated portions of the laminate, such as the cover glass and back glass of a photovoltaic module, are aligned, the first and second stopes abut against the sides of the two glass layers, and their sliding distances on the base are synchronized. A conductive element on the first stop abuts against the insulating section of the second stop. At this time, the switching circuit is not closed and no signal is output. However, when the cover glass and back glass are misaligned, the first and second stopes, when abutting against the sides of the two glass layers, slide at different distances on the base. The conductive element abuts against the conductive section of the second stop, the switching circuit closes, forming a loop and outputting a signal. This allows the device to determine that a misalignment has occurred in the laminate, thereby preventing the misaligned laminate from proceeding to the next normal process.

[0027] Compared to manual inspection in existing technologies, this inspection device can achieve automated inspection, which is efficient and accurate. Furthermore, the laminated component misalignment detection device of this exemplary embodiment is simple to manufacture, low in cost, and easy to promote on a large scale. Attached Figure Description

[0028] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0029] Figure 1 This is a schematic diagram of the detection device for the misalignment detection of laminated parts according to an embodiment of the present utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the stacked component misalignment detection device according to an embodiment of the present utility model;

[0031] Figure 3 This is an isometric structural diagram of the stacked component misalignment detection device (without housing) according to an embodiment of the present invention, showing the alignment state.

[0032] Figure 4 This is a front view structural schematic diagram of the alignment state of the stacked component misalignment detection device (without housing) according to an embodiment of the present utility model.

[0033] Figure 5 This is a front view structural schematic diagram of the misalignment state of the laminated component misalignment detection device (without housing) according to an embodiment of the present utility model;

[0034] Figure 6 This is an isometric structural diagram of the second stopper and the conductive member in a misaligned state according to an embodiment of the present invention.

[0035] Figure label:

[0036] 10. Detection device; 11. First stop; 12. Second stop; 121. Conductive section; 122. Insulating section; 13. Housing;

[0037] 21. Cover glass; 22. Back glass;

[0038] 30. Rollers;

[0039] 40. Conductive components;

[0040] 50. Return spring;

[0041] 61. Slider; 62. Slide rail. Detailed Implementation

[0042] 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.

[0043] A photovoltaic laminate comprises five layers of material stacked together, which, from the light-receiving side (front) to the back side (back), sequentially include a front cover plate, a front encapsulating film, a photovoltaic cell string array, a rear encapsulating film, and a rear cover plate. These five layers are then placed in a laminator, where heating and pressure melt the front and rear encapsulating films, forming a strong bond between the layers, thus creating the finished photovoltaic laminate.

[0044] Figure 1 This is a schematic diagram of the detection device for misalignment of laminated parts according to an embodiment of this utility model. Figure 1 As shown, for a double-glass photovoltaic module, the front cover is a cover glass 21 and the rear cover is a back glass 22. Before the photovoltaic laminate is laminated, there may be misalignment between the cover glass 21 and the back glass 22 during the lamination process. If the misalignment is not detected in time, the misaligned module is prone to breakage during the subsequent framing process, affecting production.

[0045] To address the aforementioned issues, the laminated component misalignment detection device provided in the exemplary embodiment of this utility model can effectively monitor misalignment without affecting the production line's capacity or the quality of the laminated components. Furthermore, it has a simple structure and low manufacturing cost.

[0046] It should be noted that the laminate misalignment detection device provided in the exemplary embodiment of this utility model takes the cover glass 21 and back glass 22 in the photovoltaic laminate as examples, but is not limited to this. For example, it can be adjusted according to actual needs to detect whether there is misalignment between the cover glass 21 and the battery cell, as well as whether there is misalignment between two laminated components in other laminated components that require edge alignment or parallel edges.

[0047] Figure 2 This is a structural schematic diagram of a laminated component misalignment detection device according to an embodiment of the present invention. (In conjunction with...) Figure 1 and Figure 2 As shown, the detection device 10 provided in the exemplary embodiment of this utility model is disposed on the side of the laminate conveying device. The end of the first stop member 11 extending out of the base abuts against the side of the cover glass 21, and the end of the second stop member 12 extending out of the base abuts against the side of the back glass 22. When the laminate passes through the detection device 10 along the conveying direction, the cover glass 21 and the back glass 22 respectively push the first stop member 11 and the second stop member 12 to slide (retract) into the outer shell 13 (part of the base) along the preset direction.

[0048] In another optional embodiment, when the laminate passes the detection device 10, the detection device 10 can move as a whole along a preset direction toward the side of the laminate until the end of the first stop 11 abuts against the side of the cover glass 21 and the end of the second stop 12 extending from the base abuts against the side of the back glass 22.

[0049] The cover glass 21 and back glass 22 of the above-mentioned laminated components have two states: misaligned state and aligned state.

[0050] Figure 3 This is an isometric structural diagram of the stacked component misalignment detection device (without housing) according to an embodiment of the present invention, showing the alignment state. Figure 4 This is a front view structural diagram of the aligned state of the laminated component misalignment detection device (without a housing) according to an embodiment of this utility model. Figure 3 and Figure 4 As shown, the relative positional relationship between the first stop member 11 and the second stop member 12 is the initial state; or when the detected stacked parts are in the alignment state, the relative positional relationship between the first stop member 11 and the second stop member 12 is consistent with the initial state, but the difference from the initial state is that the relative position of the first stop member 11 and the second stop member 12 with the outer shell 13 has changed.

[0051] When the laminated components are in an aligned state, as they pass the detection device, the first stopper 11 and the second stopper 12 abut against the side of the laminated components, and both retract a certain length into the outer casing 13, that is, they retract synchronously. Figure 3 and Figure 4 The relative positions of the first stop member 11 and the second stop member 12 are such that the conductive element 40 on the first stop member 11 abuts against the insulating section 122 on the second stop member 12, consistent with the initial state of the detection device 10. At this time, the switching circuit formed between the conductive element 40 and the second stop member 12 is in an open circuit state, that is, the switching circuit does not output a signal. As a result, the production system detects the laminate as a properly aligned laminate, does not take any action or issue an alarm message, and the laminate is transferred to the next normal process for photovoltaic module production.

[0052] When the laminated component is misaligned, as it passes the detection device, the first stopper 11 and the second stopper 12 abut against the side of the laminated component, and both retract into the housing 13 by different lengths, that is, they retract asynchronously. Figure 5 and Figure 6 The relative positional relationship between the first stop member 11 and the second stop member 12 is such that the conductive member 40 on the first stop member 11 is offset from the insulating section 122 on the second stop member 12 and comes into contact with the conductive section 121, which is inconsistent with the initial state of the detection device 10. Figure 5 This is a front view structural schematic diagram of the misalignment state of the laminated component misalignment detection device (without housing) according to an embodiment of the present utility model; Figure 6 This is an isometric structural diagram of the second stopper and the conductive member in a misaligned state according to an embodiment of the present invention. At this time, the switching circuit formed between the conductive member 40 and the second stopper 12 is in a closed-circuit state, meaning the switching circuit outputs a signal. Therefore, the production system determines the laminated component to be misaligned, issues an alarm message based on the output signal, or controls the conveying device of the laminated component to transfer it to the non-good (NG) product station for alignment processing, preventing it from flowing into the production of photovoltaic modules in the normal station.

[0053] In some implementations, continue as Figure 6 As shown, there are two conductive segments 121, and an insulating segment 122 is located between the two conductive segments 121.

[0054] In practical applications, there are two types of misalignment between the cover glass 21 and the back glass 22 in laminated components:

[0055] The distance between the cover glass 21 and the housing 13 of the detection device 10 is closer than that between the back glass 22 and the detection device 10. When the detection device 10 detects, the retraction length of the first stop member 11 is longer than that of the second stop member 12. At this time, the conductive member 40 contacts the conductive section 121 on the side of the insulating section 122 away from the laminate, forming a closed switching circuit and outputting a misalignment signal.

[0056] The distance between the cover glass 21 and the housing 13 of the detection device 10 is greater than that between the back glass 22 and the detection device 10. When the detection device 10 detects, the retraction length of the first stop member 11 is shorter than that of the second stop member 12. At this time, the conductive member 40 contacts the conductive section 121 of the insulating section 122 near the side of the laminate, forming a closed switching circuit and outputting a misalignment signal.

[0057] As can be seen from the above, conductive sections 121 are respectively provided on both sides of the insulating section 122. In both cases where the cover glass 21 and the back glass 22 are misaligned, a misalignment signal can be output, thereby identifying the misaligned laminated components.

[0058] Considering automated production, after the inspection device 10 has inspected one stacked component, it needs to return to its initial state in order to inspect for misalignment in the next stacked component. For example... Figure 2 and Figure 3 As shown, the detection device 10 also includes two return springs 50, one end of each return spring 50 is connected to the base, and the other end is connected to the corresponding part of the first stop member 11 or the second stop member 12.

[0059] For example, a return spring 50 is provided between the end of the first stop member 11 away from the stacked member and the inner wall surface of the housing 13 away from the stacked member, so that the retracted first stop member 11 can extend out of the housing 13 along a preset direction and return to the initial state.

[0060] In another embodiment, the reset spring 50 is sleeved on the first stop member 11. The first stop member 11 has a limiting protrusion in the middle. One end of the reset spring 50 is connected to the limiting protrusion, and the other end is connected to the inner wall surface of the outer shell 13 near the laminated part. This also allows the first stop member 11 to extend out of the outer shell 13 and return to its initial state after the misalignment detection is completed.

[0061] The relative positional relationship between the second stop member 12 and the corresponding return spring 50 is consistent with the relative positional relationship between the first stop member 11 and the corresponding return spring 50, and will not be described again here.

[0062] To accommodate the transfer of laminated components on the production line, the misalignment detection of the detection device 10 should not impede the laminated components. Therefore, as... Figure 1 and Figure 2 As shown, both the first stop member 11 and the second stop member 12 have a stop end that abuts against the laminated member, and both the first stop member 11 and the second stop member 12 have a guide portion on their stop ends.

[0063] For example, the guide section includes a roller 30, which is rotatably mounted on the corresponding abutment ends of the first abutment member 11 and the second abutment member 12. The roller 30's rotatable direction is consistent with the conveying direction of the laminated components. Figure 1As shown. That is, when the first stopper 11 and the second stopper 12 stop against the sides of the cover glass 21 and the back glass 22 respectively, the stacked parts can still move smoothly along the conveying direction by the rotation of the roller 30.

[0064] For example, the guide portion can also be a slope formed on the stop end, which is an arc-shaped inclined surface and can be provided on the rear side of the stop end. The housing 13 of the detection device 10 can be fixedly provided on the side of the conveying device. When the laminated piece passes through the arc-shaped slope of the first stop 11 and the second stop 12, the front end of the laminated piece is guided by the slope to push the first stop 11 and the second stop 12 into the housing 13 along the arc-shaped slope, thereby detecting whether there is misalignment. It is understood that the above-mentioned guide portion, which is a roller 30, also has the function of slope guidance.

[0065] like Figure 3 and Figure 6 As shown, the second stop member 12 has a groove on its surface facing the first stop member 11. The groove extends along a preset direction, and the insulating section 122 and the conductive section 121 are formed in the groove.

[0066] The conductive element 40 can be a sheet-like pointer, the end of which faces away from the first stop 11 can abut against the groove of the second stop 12. That is, the conductive element 40 can move along the extension direction of the groove under the action of the first stop 11, thereby forming an open or closed circuit of the switching circuit and outputting a misalignment signal. The groove can limit the movement direction of the conductive element 40, so that the conductive element 40 will not deviate from the corresponding insulating section 122 or conductive section 121.

[0067] Specifically, the insulating section 122 can be formed by embedding a U-shaped insulating plastic sheet in the groove to prevent a closed circuit between the conductive component 40 and the second stop component 12. The entire groove is formed on the conductive metal second stop component 12, or a U-shaped metal sheet is installed on the inner wall of the groove, and the insulating plastic sheet is laid on the metal sheet. The metal sheet or the conductive metal second stop component 12 and the conductive component 40 are connected to a power source or the like via wires to form a switching circuit.

[0068] For example, the length of the insulating segment 122 along the preset direction is in the range of 1mm to 2mm, such as 1.5mm, 1.7mm, or 1.9mm. That is, when the misalignment between the cover glass 21 and the back glass 22 exceeds the length of the insulating segment 122, it is determined to be a misaligned laminate and needs to be processed accordingly.

[0069] It is understandable that the length of the conductive segment 121 along the preset direction is determined by the maximum misalignment distance between the cover glass 21 and the back glass 22. For example, the length of the conductive segment 121 can be greater than the maximum misalignment distance between the two.

[0070] In some embodiments, the detection device 10 further includes a controller, and a switching circuit is electrically connected to the controller. When the detected laminate is misaligned, the switching circuit forms a closed circuit with the conductive section 121 of the second stop member 12, and the output signal is received by the controller. The controller can control the conveying device based on the misalignment signal to convey the misaligned laminate to the NG station, avoiding its conveyance to the subsequent normal process station.

[0071] In some embodiments, the detection device 10 also includes an alarm device, which is communicatively connected to the switching circuit. When the detected laminate is misaligned, the switching circuit forms a closed circuit with the conductive section 121 of the conductive element 40 and the second stop element 12. The alarm device in the switching circuit, such as a warning light or a buzzer, forms a complete circuit with the power supply, thereby issuing an alarm to remind the staff to handle the laminate accordingly.

[0072] In some embodiments, the detection device 10 further includes a linear motion device, with a base disposed on the linear motion device, and the base moving along a preset direction.

[0073] In practical applications, when the laminated component is conveyed to the position of the detection device 10 by the conveying device, the linear motion device, such as a cylinder or hydraulic cylinder, drives the base, such as the housing 13, to move the entire detection device 10 toward the laminated component until the first stop 11 stops against the side of the cover glass 21 and the second stop 12 stops against the side of the back glass 22.

[0074] For example, when a straightening device is provided on the conveying device, the detection device 10 can be provided on the corresponding straightening device. The straightening device can drive the entire detection device 10 to approach the stacked parts. Thus, the straightening device can replace the function of the linear motion device, making the transformation cost of the production line lower.

[0075] In some embodiments, the first stop member 11 and the second stop member 12 are slidably mounted on the base via corresponding sliders 61 and slide rails 62. For example, the two slide rails 62 are respectively mounted on the inner wall surfaces of the top and bottom walls of the outer casing 13, the first stop member 11 and the second stop member 12 are respectively fixed on the two sliders 61, and the extension direction of the slide rails 62 is a preset direction, that is, the first stop member 11 and the second stop member 12 are telescopically mounted on the outer casing 13 via return springs.

[0076] An exemplary embodiment of this utility model also provides a laminate production system, including a conveying device and at least one detection device 10, wherein the detection device 10 is the detection device 10 of the above embodiment; the conveying device is used to pass the laminate through the side of the detection device 10.

[0077] For example, the number of detection devices 10 can be one or more. For instance, two detection devices 10 are respectively arranged on two sides of the conveying device to perform misalignment detection from both sides of the laminate, which can improve the reliability of misalignment detection.

[0078] The detection device 10 of the above-mentioned laminated part production system does not affect the production cycle when performing misalignment detection on the laminated parts, and conforms to the actual production requirements on site.

[0079] When the detection device 10 includes a controller, if the detection device 10 detects that the laminate is misaligned, the controller controls the conveying device to transport the laminate to a preset station. For example, a laminate determined to be misaligned can be transported to an NG station for further alignment and other processing before being returned to the production line for misalignment detection. Once the misalignment is detected and the laminate passes inspection, it can be transferred to the next process. This reduces the risk of misaligned laminates causing frame breakage in subsequent processes, improves the yield of photovoltaic modules, and meets the requirements of automated production.

[0080] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A device for detecting misalignment in laminated components, characterized in that, It includes a base, a conductive component, and a first stop and a second stop disposed opposite to each other. Along a preset direction, the first stop and the second stop are both slidably disposed on the base. The conductive element is disposed on the first stop element; In the predetermined direction, the second stop member has an insulating section and at least one conductive section, and a switching circuit is formed between the conductive member and the second stop member; When the detected laminated component is in a misaligned state, the end of the conductive component that is away from the first stop component abuts against the conductive segment. When the detected laminate is in an aligned state, the end of the conductive element away from the first stop member abuts against the insulating section.

2. The detection device according to claim 1, characterized in that, The detection device also includes two return springs, one end of each return spring being connected to the base and the other end being connected to a corresponding part of the first stop member or the second stop member.

3. The detection device according to claim 1, characterized in that, Both the first stop and the second stop have a stop end that abuts against the laminated member, and both the first stop and the second stop have a guide portion on the stop end.

4. The detection device according to claim 3, characterized in that, The guide portion includes a roller; or... The guide portion is a slope formed at the stop end.

5. The detection device according to any one of claims 1-4, characterized in that, The second stop member has a groove on its surface facing the first stop member, the groove extends along the preset direction, and the insulating segment and the conductive segment are formed in the groove.

6. The detection device according to claim 1, characterized in that, The detection device further includes a controller, and the switching circuit is electrically connected to the controller; or... The detection device also includes an alarm device, which is communicatively connected to the switching circuit.

7. The detection device according to claim 1, characterized in that, The detection device further includes a linear motion device, the base is disposed on the linear motion device, and the base moves along the preset direction.

8. The detection device according to claim 1, characterized in that, The length of the insulating segment in the preset direction ranges from 1mm to 2mm; and / or, The number of conductive segments is two, and the insulating segment is located between the two conductive segments.

9. A laminated component production system, characterized in that, It includes a conveying device and at least one detection device, wherein the detection device is the detection device according to any one of claims 1-8; The conveying device is used to pass the laminated component past the side of the detection device.

10. The production system according to claim 9, characterized in that, The detection device includes a controller. When the detection device detects that the laminated component is in a misaligned state, the controller is used to control the conveying device to convey the laminated component to a preset workstation.

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