Hole site detection device for photovoltaic glass
The photovoltaic glass hole detection device detects external forces as the moving components move on the glass, solving the problem of mixing front and back glass, improving production efficiency and product quality, and avoiding the defects of probe detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 通威太阳能(盐城)有限公司
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-05
AI Technical Summary
In the production process of photovoltaic modules, the use of mixed front and back glass leads to batch defects. Existing probe detection is prone to wear and tear and false alarms, affecting production efficiency and product quality.
Design a hole detection device for photovoltaic glass. The device detects the magnitude of external force when a movable component moves on the photovoltaic glass to determine whether the glass has a hole, thus avoiding batch defects. The device uses a combination of support components, movable components, and measuring components to achieve standardized and convenient detection.
It effectively avoids batch defects and losses, improves production efficiency, reduces probe wear and false alarm risks, and enables convenient operation.
Smart Images
Figure CN224203443U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of photovoltaic glass testing technology, and in particular to a hole position detection device for photovoltaic glass. Background Technology
[0002] With the advantages of double-glass photovoltaic modules in terms of power generation efficiency and lifespan in recent years, their market share has gradually increased and they have begun to be widely used in various photovoltaic power generation systems. Both the cover and backsheet of a double-glass module use photovoltaic glass, and the backsheet photovoltaic glass must be perforated at specific locations to lead the current conductors of the photovoltaic cell module to the junction box.
[0003] In the production process of double-glass photovoltaic modules, the glass feeding machine uses suction cups to pick up the front and back glass and place them on the production line. However, during the supply of photovoltaic glass, there is a situation where the front and back glass are mixed, which causes great trouble to the workshop's production indicators and rework.
[0004] Currently, in the photovoltaic module manufacturing process, probes are typically used to inspect the cured state of the adhesive in the junction box to determine whether the front and back glass are mixed. However, probes are prone to wear and tear during use, leading to risks such as jamming, false alarms, and failure. Utility Model Content
[0005] Therefore, it is necessary to provide a hole position detection device for photovoltaic glass to address the above-mentioned technical problems.
[0006] A hole position detection device for photovoltaic glass, comprising:
[0007] Support components;
[0008] A movable component, movably mounted on the support component, and capable of moving in the perforated or non-perforated area of the photovoltaic glass by an external force; and
[0009] A measuring component, connected to the movable component, is capable of measuring the magnitude of a first external force acting on the movable component when it moves in the open area and the magnitude of a second external force acting on it when it moves in the non-open area; wherein the first external force is greater than or less than the second external force.
[0010] In one embodiment, the support assembly is provided with a guide rail having a locking groove located above the opening area;
[0011] The movable component includes a mounting frame, a locking rod, and a contact element. The locking rod and the contact element are both disposed on the mounting frame. The mounting frame can slide along the guide rail, thereby driving the contact element to move between the open area and the non-open area. When the contact element moves from the non-open area to the open area, the locking rod can enter the locking groove.
[0012] In one embodiment, the guide rail is provided with a receiving groove along its own extension direction. The receiving groove is located above the locking groove and communicates with the locking groove. The receiving groove allows the locking rod to pass through laterally.
[0013] In one embodiment, the mounting frame has a rod hole for mounting the locking rod, the diameter of which is larger than the outer diameter of the locking rod.
[0014] In one embodiment, when the contact moves in the non-opening area, the lower edge of the rod hole is higher than the lower edge of the receiving groove, and / or, there is a gap between the locking rod and the upper edge of the locking groove.
[0015] In one embodiment, the contact element is a rotatable ball.
[0016] In one embodiment, the mounting frame includes an upper mounting portion, a first side mounting portion, a lower mounting portion, and a second side mounting portion that are connected end to end.
[0017] The locking rod is connected between the first side mounting part and the second side mounting part, the contact member is provided on the lower mounting part, the guide rail is located between the first side mounting part and the second side mounting part, and the measuring component is connected to the upper mounting part.
[0018] In one embodiment, there are two guide rails, which are arranged side by side between the first side mounting portion and the second side mounting portion, and at least one of the guide rails is provided with the locking groove.
[0019] In one embodiment, each end of the support component has a limiting block protruding along the thickness direction of the photovoltaic glass.
[0020] In one embodiment, the measuring component includes a spring tension gauge.
[0021] The aforementioned hole detection device determines whether the photovoltaic glass has an opening by detecting the magnitude of the external force exerted on the moving component when it moves on the photovoltaic glass. This allows for the detection of whether the front and back glass of a double-glass photovoltaic module are mixed, effectively avoiding work-in-process losses caused by batch defects. It has advantages such as standardized operation, convenience, ease of operation, and higher efficiency. It also eliminates the need for probe detection, thus solving the problems of probes being prone to wear and jamming, false alarms, and failures during use. Attached Figure Description
[0022] Figure 1 This is a schematic diagram illustrating the interaction between the hole position detection device and the back glass according to an embodiment of this application.
[0023] Figure 2 This is a schematic diagram of the hole position detection device provided in one embodiment of this application.
[0024] Figure 3 for Figure 1 A magnified view of a portion at point A.
[0025] Figure 4 for Figure 2 A magnified view of a portion at point B.
[0026] Figure 5 for Figure 2 Force analysis diagram of the contact element of the provided hole position detection device when it moves in the non-hole area of the back glass.
[0027] The labels in the attached diagram are explained as follows:
[0028] 10. Hole position detection device; 100. Support assembly; 110. Guide rail; 110a. Locking groove; 110b. Receiving groove; 120. Limiting block; 200. Movable assembly; 210. Mounting frame; 210a. Rod hole; 220. Locking rod; 230. Contact element; 300. Measuring assembly; 20. Back glass; 20a. Opening area; 20b. Non-opening area. Detailed Implementation
[0029] 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.
[0030] 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.
[0031] 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.
[0032] 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.
[0033] 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.
[0034] 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.
[0035] With the advantages of double-glass photovoltaic modules in terms of power generation efficiency and lifespan in recent years, their market share has gradually increased and they have begun to be widely used in various photovoltaic power generation systems. Both the cover and backsheet of a double-glass module use photovoltaic glass, and the backsheet photovoltaic glass must be perforated at specific locations to lead the current conductors of the photovoltaic cell module to the junction box.
[0036] In the production of double-glass photovoltaic modules, the glass feeding machine uses suction cups to pick up the front and back glass and place them separately on the production line. However, during the supply process, front and back glass may be mixed. Specifically, if the back glass is incorrectly used in the front glass feeding mechanism, subsequent processes will continue, and the error cannot be detected until lamination is complete, resulting in a large number of defective products. Conversely, if the front glass is incorrectly used in the back glass feeding mechanism, the back lead wires cannot be pulled out during the back glass lamination process. Although subsequent processes can detect this, the defective modules require rework, consuming significant manpower and resources to repair them, impacting production line yield and cycle time.
[0037] Currently, in photovoltaic module production, probe inspection technology is commonly used to assess the quality of the cured encapsulated junction boxes, identifying whether the front and back glass have been mixed. Because the front and back glass differ in thickness, thermal conductivity, and other properties, the height and hardness of the cured encapsulant can vary significantly. During inspection, the displacement generated by the probe in contact with the encapsulant is directly affected by the encapsulant's physical properties (such as hardness and height). By converting this displacement signal into an electrical signal using a photoelectric sensor, it can be analyzed in real time to determine whether the signal falls within a preset threshold range, thus quickly identifying any glass mixing issues.
[0038] However, during the long-term, high-frequency pressing of the colloid, the contact points between the probe and the colloid or equipment may wear due to friction, chemical corrosion or mechanical fatigue, which may lead to risks such as jamming, false alarms and failures.
[0039] In response, one embodiment of this application provides a hole position detection device for photovoltaic glass. This device is used to detect whether the front and back glass of a double-glass photovoltaic module are mixed, which can effectively avoid work-in-process losses caused by batch defects. For example... Figure 1As shown, the back glass 20 typically has an opening area 20a and a non-opening area 20b, while the front glass only has a non-opening area.
[0040] like Figures 1 to 4 As shown, the hole position detection device 10 includes a support component 100, a movable component 200, and a measuring component 300. The movable component 200 is movably mounted on the support component 100 and can move in the open area 20a or the non-open area 20b of the photovoltaic glass by an external force. The measuring component 300 is connected to the movable component 200 and can measure the magnitude of the first external force acting on the movable component 200 when it moves in the open area 20a and the magnitude of the second external force acting on it when it moves in the non-open area 20b. The first external force is greater than or less than the second external force.
[0041] As an example, the first external force is greater than the second external force. When the glass used in photovoltaic module production passes through the hole position detection device 10, the glass stops at a preset point, and the movable component 200 of the hole position detection device 10 begins to move on the glass under the external force. At the same time, the measuring component 300 monitors the magnitude of the external force on the movable component 200 in real time. Based on the fact that the external force on the movable component 200 when moving in the hole area 20a is greater than the external force when moving in the non-hole area 20b, it can be determined whether the photovoltaic glass has a hole. If it has a hole, the external force on the movable component 200 increases instantaneously during the movement. If it does not have a hole, the external force on the movable component 200 during the movement is relatively stable. As can be seen, the hole detection device 10 provided in this application determines whether the photovoltaic glass has a hole by detecting the magnitude of the external force on the moving component 200 when it moves on the photovoltaic glass. This allows for the detection of whether the front glass and back glass 20 of the double-glass photovoltaic module are mixed, effectively avoiding work-in-process losses caused by batch defects. It has the advantages of standardized operation, convenience, ease of operation, and higher efficiency. It also eliminates the need for probe detection, thus solving the problem of probes being easily worn during use and causing jamming, false alarms, and failures.
[0042] The support component 100 is mainly used to support the movable component 200 above the area of the photovoltaic glass to be inspected, allowing the movable component 200 to move within the inspected area of the photovoltaic glass. The inspected area of the photovoltaic glass refers to the part with the holes, which can be specifically the axial end of the photovoltaic glass or the middle part of the photovoltaic glass (see [reference]). Figure 1 ).
[0043] To avoid the photovoltaic glass shifting during aperture detection and affecting the detection results, such as... Figure 1 and Figure 2As shown, each end of the support assembly 100 has a limiting block 120 protruding along the thickness direction of the photovoltaic glass. The two limiting blocks 120 of the support assembly 100 can be located on both sides of the photovoltaic glass in the width direction, and can limit the photovoltaic glass in the width direction.
[0044] The limiting block 120 is detachably connected to the support component 100 to adjust the distance between the two limiting blocks 120. The distance between the two limiting blocks 120 can be adjusted according to different sizes of photovoltaic glass to limit the movement of photovoltaic glass of different sizes, making it suitable for use with different glass types. The device of this application can perform hole position detection on photovoltaic glass with a width of 1128mm to 1297mm.
[0045] In some embodiments, the hole position detection device 10 may further include a lifting assembly (not shown in the drawings), and a support assembly 100 is disposed on the lifting assembly. When the photovoltaic glass is transported from upstream to below the support assembly 100 via the conveying mechanism, the lifting assembly lowers the support assembly 100 onto the part of the photovoltaic glass to be detected, facilitating subsequent hole position detection; after detection is completed, the support assembly 100 moves upward, and the photovoltaic glass is then transported downstream via the conveying mechanism. The width direction of the photovoltaic glass is perpendicular to the conveying direction of the photovoltaic glass.
[0046] The lifting component can be a power cylinder, such as a pneumatic cylinder or a hydraulic cylinder; or it can be a structure in which a motor and a transmission mechanism (such as a lead screw mechanism, a gear and rack mechanism, or a crank-slider mechanism) work together.
[0047] like Figures 1 to 4 As shown, in some embodiments of this application, the support component 100 is provided with a guide rail 110, which has a locking groove 110a located above the opening area 20a; the movable component 200 includes a mounting frame 210, a locking rod 220, and a contact member 230, both of which are mounted on the mounting frame 210; the mounting frame 210 can slide along the guide rail 110, thereby driving the contact member 230 to move between the opening area 20a and the non-opening area 20b; when the contact member 230 moves from the non-opening area 20b to the opening area 20a, the locking rod 220 can enter the locking groove 110a. When the contact 230 moves from the non-perforated area 20b to the perforated area 20a of the back glass 20 under the drive of the mounting frame 210, the contact 230 can fall into the perforation of the back glass 20. During the fall, the locking rod 220 will also fall into the locking groove 110a of the guide rail 110. At this time, the falling locking rod 220 is blocked by the locking groove 110a, which causes the external force on the moving component 200 to increase instantaneously, thereby determining whether the photovoltaic glass has a perforation.
[0048] The back glass 20 typically has multiple openings to lead out multiple current conductors from the photovoltaic module. The shape of the guide rail 110 is related to the arrangement of the openings on the back glass 20; for example, such as... Figure 1 As shown, multiple openings on the back glass 20 are arranged at intervals along the width direction of the back glass 20. The guide rail 110 has a straight-line structure extending along the width direction of the back glass 20. This structure of the guide rail 110 can prevent the hole position detection device 10 from missing detections, ensuring the hole position detection accuracy of the hole position detection device 10. The number and arrangement of the locking grooves 110a on the guide rail 110 are the same as those on the openings on the back glass 20.
[0049] like Figure 3 and Figure 4 As shown, the guide rail 110 may have a receiving groove 110b along its extension direction. The receiving groove 110b is located above and communicates with the locking groove 110a, and the receiving groove 110b allows the locking rod 220 to pass through laterally. The receiving groove 110b can also guide the movement of the mounting frame 210. Of course, in some other embodiments, the locking groove 110a can be provided on the top surface of the guide rail 110. In this case, it is not necessary to provide a receiving groove 110b on the guide rail 110.
[0050] The external force applied to the movable component 200 can be an upward-sloping tensile force. In this case, such as... Figure 5 As shown, the resultant force F of the gravity G and the frictional force F acting on the contact element 230 is... 合 With the same magnitude and opposite direction as the pulling force, when the locking rod 220 falls into the locking groove 110a, the frictional force F on the contact member 230 increases instantaneously, and the resultant force F on the contact member 230 increases. 合 The force also increases instantaneously, causing the pulling force applied to the movable component 200 to increase instantaneously as well. Of course, in some other embodiments, a downward thrust can also be applied to the movable component 200 to drive it to move on the photovoltaic glass.
[0051] Correspondingly, the measuring component 300 may include a spring tension member connected to the top of the mounting frame 210. An external force can be applied to the mounting frame 210 via the spring tension member.
[0052] When the mounting frame 210 is pulled diagonally upwards, if the locking rod 220 is fixedly connected to the mounting frame 210, since the locking rod 220 is confined in the receiving groove 110b of the guide rail 110, the mounting frame 210, along with the contact member 230, rotates around the central axis of the locking rod 220, causing the contact member 230 to leave the surface of the photovoltaic glass and become unable to move on the photovoltaic glass. Therefore, this application movably connects the locking rod 220 to the mounting frame 210. Specifically, as follows... Figures 3 to 5As shown, in one embodiment, the mounting frame 210 has a rod hole 210a for mounting the retaining rod 220, and the diameter of the rod hole 210a is larger than the outer diameter of the retaining rod 220. Because the diameter of the rod hole 210a is larger than the outer diameter of the retaining rod 220, when the mounting frame 210, carrying the contact member 230, rotates around the central axis of the retaining rod 220, the retaining rod 220 can adjust its relative position with the rod hole 210a, so that the contact member 230 is always in contact with the photovoltaic glass, thereby ensuring the hole position inspection accuracy of the hole position detection device 10.
[0053] The rod hole 210a can be a round hole or Figure 3 and Figure 4 The oblong hole is shown. Compared to the oblong hole, the round hole allows for multi-directional adjustment of the relative position between the locking rod 220 and the rod hole 210a, enabling the contact member 230 to effectively contact the photovoltaic glass.
[0054] See also Figure 4 When the contact 230 moves in the non-opening area 20b, the lower edge of the rod hole 210a can be higher than the lower edge of the receiving groove 110b. This arrangement serves two purposes: firstly, it prevents the locking rod 220 from contacting the lower edge of the receiving groove 110b, thus preventing wear on the guide rail 110; secondly, since the locking groove 110a is located below the receiving groove 110b, when the contact 230 moves in the non-opening area 20b, the lower edge of the rod hole 210a is also higher than the upper edge of the locking groove 110a. This prevents the locking rod 220 from falling into the locking groove 110a when detecting the hole position on the front glass, ensuring detection accuracy.
[0055] In one embodiment, such as Figure 4 As shown, when the contact member 230 moves in the non-opening area 20b, there can also be a gap between the locking rod 220 and the upper edge of the locking groove 110a. In this way, the locking rod 220 can be prevented from contacting the upper edge of the receiving groove 110b, and the locking rod 220 can be further prevented from causing wear to the guide rail 110.
[0056] In one embodiment, see Figures 1 to 5 The contact element 230 is a rotatable ball. The ball causes rolling friction between the contact element 230 and the photovoltaic glass, which reduces wear on the photovoltaic glass. The ball may have a protective layer, such as a rubber layer, on its exterior.
[0057] Regarding the diameter of the rolling ball, it can be set according to the aperture diameter on the photovoltaic glass, for example, it can be set to 8mm. This application does not impose specific restrictions on this, as long as it can effectively monitor the aperture on the photovoltaic glass.
[0058] In one embodiment, the mounting frame 210 may include an upper mounting portion, a first side mounting portion, a lower mounting portion, and a second side mounting portion connected end to end; a locking rod 220 is connected between the first side mounting portion and the second side mounting portion; a contact member 230 is provided on the lower mounting portion; a guide rail 110 is located between the first side mounting portion and the second side mounting portion; and a measuring component 300 is connected to the upper mounting portion. This mounting frame 210 has a simple structure and is easy to manufacture. Rod holes 210a are provided on both the side of the first side mounting portion facing the second side mounting portion and the side of the second side mounting portion facing the first side mounting portion.
[0059] The upper mounting part, the first side mounting part, the lower mounting part, and the second side mounting part can be connected by welding, integral molding, or other methods.
[0060] Based on the structure of the mounting frame 210 described above, this application further defines the structure of the guide rail 110, specifically, as follows: Figure 3 As shown, in one embodiment, two guide rails 110 are provided, which are arranged side by side between the first side mounting portion and the second side mounting portion. At least one guide rail 110 is provided with a locking groove 110a. Arranging two guide rails 110 side by side not only reduces the weight of the hole position detection device 10, but also allows observation of the operation of the locking rod 220 and the contact member 230 during hole position detection of photovoltaic glass, ensuring smooth hole position detection.
[0061] Only one guide rail 110 has a receiving groove 110b and a retaining groove 110a. This reduces the manufacturing difficulty of the hole position detection device 10.
[0062] 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.
[0063] 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 hole position detection device for photovoltaic glass, characterized in that, include: Support components (100); The movable component (200) is movably disposed on the support component (100) and can move in the open area (20a) or non-open area (20b) of the photovoltaic glass by an external force; and A measuring component (300) is connected to the movable component (200) and is capable of measuring the magnitude of a first external force acting on the movable component (200) when it moves in the open area (20a) and the magnitude of a second external force acting on it when it moves in the non-open area (20b); wherein the first external force is greater than or less than the second external force.
2. The hole position detection device according to claim 1, characterized in that, The support assembly (100) is provided with a guide rail (110) having a locking groove (110a) located above the opening area (20a). The movable component (200) includes a mounting frame (210), a locking rod (220), and a contact (230). The locking rod (220) and the contact (230) are both disposed on the mounting frame (210). The mounting frame (210) can slide along the guide rail (110), thereby driving the contact (230) to move between the open area (20a) and the non-open area (20b). When the contact (230) moves from the non-open area (20b) to the open area (20a), the locking rod (220) can enter the locking groove (110a).
3. The hole position detection device according to claim 2, characterized in that, The guide rail (110) is provided with a receiving groove (110b) along its own extension direction. The receiving groove (110b) is located above the locking groove (110a) and communicates with the locking groove (110a). The receiving groove (110b) is for the locking rod (220) to pass through laterally.
4. The hole position detection device according to claim 3, characterized in that, The mounting frame (210) has a rod hole (210a) for mounting the locking rod (220), the diameter of the rod hole (210a) being larger than the outer diameter of the locking rod (220).
5. The hole position detection device according to claim 4, characterized in that, When the contact (230) moves in the non-opening area (20b), the lower edge of the rod hole (210a) is higher than the lower edge of the receiving groove (110b), and / or, there is a gap between the locking rod (220) and the upper edge of the locking groove (110a).
6. The hole position detection device according to any one of claims 2 to 5, characterized in that, The contact element (230) is a rotatable ball.
7. The hole position detection device according to any one of claims 2 to 5, characterized in that, The mounting frame (210) includes an upper mounting part, a first side mounting part, a lower mounting part and a second side mounting part that are connected end to end; The locking rod (220) is connected between the first side mounting part and the second side mounting part, the contact member (230) is provided on the lower mounting part, the guide rail (110) is located between the first side mounting part and the second side mounting part, and the measuring component (300) is connected to the upper mounting part.
8. The hole position detection device according to claim 7, characterized in that, The guide rail (110) is provided in two, and the two guide rails (110) are located side by side between the first side mounting part and the second side mounting part, and at least one of the guide rails (110) is provided with the locking groove (110a).
9. The hole position detection device according to claim 1, characterized in that, The support component (100) has a limiting block (120) protruding from both ends along the thickness direction of the photovoltaic glass.
10. The hole position detection device according to claim 1, characterized in that, The measuring component (300) includes a spring tension gauge.