Testing and gluing device for photovoltaic junction box

Abstract

The utility model discloses a photovoltaic junction box test gluing device comprising an installation bottom plate, one side of which is vertically and fixedly provided with a first side plate; the junction box fixing unit comprises a fixed clamp positioned on the left side of the middle part of the mounting bottom plate and a movable clamp positioned on the right side of the middle part of the mounting bottom plate, and the test unit comprises a slide rail and a test probe slidably mounted on the slide rail; one end of the sliding rail is fixed to the movable clamp through a springback switch. The gluing unit comprises a gluing device, the gluing device is slidably mounted on a movable rod, one end of the movable rod is movably mounted on a moving groove, and the moving groove is formed in the transverse center line of the first side plate; and the control unit comprises a gluing control console which is linearly connected with the gluing device. According to the invention, testing and gluing are carried out synchronously, the assembly production efficiency is improved, the assembly qualification rate is improved, the bad junction box can be detected before installation, and the junction box with good quality is ensured to be made into a photovoltaic assembly after gluing.

Description

Technical Field

[0001] The utility model relates to the technical field of testing and gluing of photovoltaic junction boxes, in particular to a photovoltaic junction box testing and gluing device. Background Art

[0002] With the widespread adoption of photovoltaic modules, the importance of PV junction boxes is becoming increasingly apparent. Junction boxes play a crucial role in connecting and protecting PV modules and conducting current. Their bypass protection is primarily achieved through diodes within the junction box. Consequently, junction box manufacturers and PV module manufacturers conduct quality inspections on these boxes. However, this inspection process is separate from the gluing process, leaving uncertainty regarding the actual performance of large-scale junction boxes. Furthermore, junction box failures are a frequent occurrence during actual use, creating potential safety risks for PV modules.

[0003] Patent publication number CN108957281A discloses a device for testing the diode characteristics of photovoltaic junction boxes. This device electrically connects a detection controller to a lifting cylinder and sensor, allowing a test probe to contact the diode test points within the junction box. The results are fed back to the detection controller to perform junction box diode testing. This testing method only tests the characteristics of the diode within the junction box, requiring manual re-arrangement for subsequent glue application. This not only requires additional operating space but also increases labor costs, making it of limited practical value.

[0004] Patent publication number CN112238031A discloses a novel method for applying glue to photovoltaic junction boxes. By moving a positioning element, a sliding rod, and a limiting element, multiple boxes can be glued together. This method suffers from low precision and requires a lot of manual labor. The actual amount of glue applied is uncertain, and its practical application remains to be determined.

[0005] In view of this, the present application aims to develop a device that integrates the quality inspection and gluing process of photovoltaic junction boxes, so as to reduce labor costs, do not require additional space and simplify operation, and ensure the quality of junction boxes and improve the qualification rate of photovoltaic modules. Utility Model Content

[0006] The technical problems to be solved by this application are that the frequency of random inspections is low and all defective junction boxes cannot be found; additional independent testing equipment and manpower take up assembly line space and increase costs; and after the finished photovoltaic modules are manufactured and inspected, they need to be reworked twice, which increases costs.

[0007] In order to solve the above technical problems, the present application provides a photovoltaic junction box testing and gluing device, comprising: a mounting base plate for fixing the various components of the testing and gluing device, a first side plate being vertically fixedly mounted on one side of the mounting base plate; a junction box fixing unit, comprising a fixed clamp located on the left side of the middle of the mounting base plate and a movable clamp located on the right side of the middle of the mounting base plate, the movable clamp extending and retracting relative to the fixed clamp to achieve clamping and loosening of the photovoltaic junction box; a testing unit, comprising a slide rail and a test probe slidably mounted on the slide rail, the needle tip of the test probe facing the mounting base plate; one end of the slide rail is fixed to the movable clamp by a rebound switch, and the slide rail moves with the movement of the movable clamp; a gluing unit, comprising a gluing device, the gluing device being slidably mounted on a movable rod, one end of the movable rod being movably mounted on a movable groove, and the movable groove being arranged on the transverse center line of the first side plate; and a control unit, comprising a gluing console, the gluing console being linearly connected to the gluing device; wherein, one side of the fixed clamp holding the photovoltaic junction box is provided with an opening leading to a gap space for accommodating the wires of the photovoltaic junction box.

[0008] According to an embodiment of the present application, the fixing fixture is a pair of L-shaped components, which are arranged facing each other to form a U-shaped space. The present application can use fixing fixtures of different shapes according to the specific shape of the photovoltaic junction box.

[0009] According to an embodiment of the present application, the movable clamp includes a fixed block and a clamping block. The fixed block is fixed to the mounting base and a spring shaft is provided through the center. The clamping block faces the fixed clamp. One end of the spring shaft is fixedly connected to the clamping block and the other end is a free end.

[0010] According to an embodiment of the present application, the bottom side of the clamping block is placed on the mounting base, and the top side of the clamping block is connected to one end of the slide rail through a rebound switch. A test probe is provided at the end of the slide rail away from the rebound switch, and the test probe is downward toward the mounting base.

[0011] According to an embodiment of the present application, the movable groove is evenly provided with a plurality of fixed grids, and one end of the movable rod connected to the movable groove is embedded in the fixed grid to fix the position of the movable rod.

[0012] According to an embodiment of the present application, the test glue-applying device further includes a test display panel, which is connected to the test unit.

[0013] According to an embodiment of the present application, the test display panel is fixedly mounted on a side of the mounting base close to the movable fixture.

[0014] According to an embodiment of the present application, the gluing console is arranged on a side of the installation base plate close to the fixing fixture, and the gluing console sets and controls the movement of the gluing machine head and the amount of gluing.

[0015] According to an embodiment of the present application, a plurality of slots are provided along the shaft of the movable rod, and the slots are used for positioning the gluing device.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] This utility model combines photovoltaic junction box testing with a glue-applying device to achieve integrated testing and glue-applying. A test probe is manipulated to the diode inside the junction box via a rebound switch. Pressing the test probe causes it to contact the diode inside the junction box, and the test results are fed back via a test display panel to determine whether it is short-circuited or open-circuited. Simultaneously, the automatic glue-applying device is activated to apply glue to qualified junction boxes, thereby achieving an integrated testing and glue-applying operation. The simultaneous testing and glue-applying process improves module production efficiency and the module qualification rate. Defective junction boxes can be detected before installation, ensuring that quality junction boxes are glued and installed to form photovoltaic modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present application, and are not limitations to the present application.

[0019] Figure 1 This is a structural schematic diagram of a photovoltaic junction box testing and gluing device as an example of the present utility model.

[0020] The following are the descriptions of the reference numerals:

[0021] 10. Mounting base plate, 11. First side plate, 20. Junction box fixing unit, 21. Fixing fixture, 22. Movable fixture, 30. Test unit, 31. Slide rail, 32. Test probe, 33. Rebound switch, 40. Gluing unit, 41. Gluing device, 42. Movable rod, 43. Movable slot, 50. Gluing console, 60. Test display panel, 221. Fixing block, 222. Spring shaft, 223. Clamping block. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by persons of ordinary skill in the art to which this application belongs. The terms "first," "second," and similar expressions used in this patent specification and claims do not denote any order, quantity, or importance, but are merely used to distinguish different components. Similarly, terms such as "a" or "an" do not denote a limitation of quantity, but rather denote the presence of at least one.

[0024] like Figure 1 As shown, a photovoltaic junction box testing and gluing device 41 as an example of the present invention includes a mounting base plate 10, a junction box fixing unit 20, a testing unit 30, a gluing unit 40 and a control unit. Compared with the prior art in which the quality inspection and gluing of photovoltaic module junction boxes are carried out in two independent processes, the present application integrates testing and gluing into one, reduces labor costs, does not require additional space, is simple to operate, and ensures the quality of the junction box and improves the qualification rate of photovoltaic modules.

[0025] In this embodiment, the mounting base plate 10 is used to fix the various components of the test glue-applying device 41 , and a first side plate 11 is vertically fixedly mounted on one side of the mounting base plate 10 .

[0026] Specifically, if Figure 1 As shown, the mounting base plate 10 may be rectangular, and a plurality of mounting holes may be provided on its mounting surface. The components on the mounting surface may be arranged in a modular manner, and the overall arrangement is neat and orderly.

[0027] Specifically, the installation base plate 10 and the first side plate 11 can be made of wood or metal, and the raw materials are simple and easily available.

[0028] In this embodiment, the junction box securing unit 20 comprises a fixed clamp 21 located on the left side of the center of the mounting base 10 and a movable clamp 22 located on the right side of the center of the mounting base 10. The fixed clamp 21 and the movable clamp 22 are positioned opposite each other to secure the photovoltaic junction box. The movable clamp 22 extends and retracts relative to the fixed clamp 21 to secure and release the photovoltaic junction box. The side of the fixed clamp 21 that holds the photovoltaic junction box has an opening leading to a void for accommodating the wiring of the photovoltaic junction box.

[0029] Specifically, if Figure 1 As shown, the fixing fixture 21 comprises a pair of L-shaped components, positioned facing each other to form a U-shaped space. This U-shaped space facilitates the routing of the photovoltaic junction box wiring, enhancing the overall cleanliness and aesthetics of the design. The L-shaped components are integrally formed, simplifying fabrication. This application does not specify the specific shape of the fixing fixture; in practice, the specific fixing fixture will be used depending on the shape of the photovoltaic junction box.

[0030] Specifically, the movable clamp 22 includes a fixed block 221 and a clamping block 223. The fixed block 221 is fixed to the mounting base 10 and has a spring shaft 222 running through the center. The clamping block 223 faces the fixed clamp 21. One end of the spring shaft 222 is fixedly connected to the clamping block 223, and the other end is a free end. In actual use, the movable end can be pulled to loosen and pop out the clamping block 223.

[0031] Specifically, after the movable clamp 22 is used to place the junction box, the junction box is clamped between the fixed clamp 21 and the clamping block 223 through the action of the spring shaft 222. Due to the elastic setting of the clamping block 223, the fixing unit is suitable for junction boxes of various sizes and can clamp the junction boxes.

[0032] In this embodiment, the test unit 30 includes a slide rail 31 and a test probe 32 slidably mounted on the slide rail 31, with the needle tip of the test probe 32 facing the mounting base 10; one end of the slide rail 31 is fixed to the movable clamp 22 using a rebound switch 33, and the slide rail 31 moves with the movement of the movable clamp 22.

[0033] Specifically, the photovoltaic junction box is located below the test unit 30 after being fixed. The bottom side of the above-mentioned clamp 223 is placed on the mounting base plate 10, and the top side of the clamp 223 is connected to one end of the slide rail 31 through the rebound switch 33. The slide rail 31 is provided with a test probe 32 at the end away from the rebound switch 33, and the test probe 32 faces downward toward the mounting base plate 10. After the photovoltaic junction box is clamped and fixed by the clamp 21 of the clamp 223, the rebound switch 33 is pressed, and the test probe 32 is pressed down to contact the photovoltaic junction box diode for testing. The test probe 32 has a certain elasticity and flexibility. Press the rebound switch 33 again, and the slide rail 31 and the test probe 32 return to their original positions. In order to achieve the alignment of the test probe 32 and the photovoltaic junction box diode, the test probe 32 is a pair, and each test probe 32 can slide along the slide rail 31 to fine-tune the position.

[0034] Specifically, the test unit 30 is also connected to a test display panel 60, which is a functional panel that displays whether the junction box test has passed and the test value, etc. The test display panel 60 is fixedly mounted on a side of the mounting base 10 near the movable fixture 22, and the overall design is compact.

[0035] In this embodiment, the gluing unit 40 includes a gluing device 41, which is slidably mounted on a movable rod 42, one end of which is movably mounted on a movable groove 43, and the movable groove 43 is arranged on the transverse center line of the first side plate 11.

[0036] Specifically, if Figure 1As shown, the middle part of the gluing device 41 can be slidably engaged on the movable rod 42 , and a plurality of slots can be provided along the rod body of the movable rod 42 , and the gluing device 41 can be engaged in the slots to fix the position of the gluing device 41 .

[0037] Specifically, the movable rod 42 is perpendicular to the first side panel 11 and parallel to the mounting base 10. One end of the movable rod 42 is mounted on the movable groove 43 and can move along the movable groove 43. A plurality of fixed grids can be evenly arranged in the movable groove 43. One end of the movable rod 42 connected to the movable groove 43 is embedded in the fixed grid to fix the position of the movable rod 42.

[0038] In this embodiment, the control unit includes a gluing console 50, which is linearly connected to the gluing device 41. The gluing console 50 is arranged on the side of the mounting base 10 close to the fixing fixture 21. The gluing console 50 sets and controls the movement of the gluing machine head and the amount of gluing.

[0039] Working principle: In this embodiment, a photovoltaic junction box test gluing device 41 combines the photovoltaic junction box test and the gluing device 41 to realize the integration of detection and gluing. The test probe 32 is controlled to the diode in the junction box by the rebound switch 33, and the test probe 32 is pressed to make it contact the diode in the junction box. The test result is fed back through the test display panel 60 to determine whether it is short-circuited or open-circuited; at the same time, the automatic gluing equipment is started to glue the qualified junction box, thereby realizing the integrated operation of detection and gluing. This patented tooling not only has a high degree of automation, reduces labor costs, does not require additional space and is simple to operate, but also ensures the quality of the junction box and improves the qualification rate of photovoltaic modules.

[0040] The working process of a photovoltaic junction box testing and gluing device 41 is as follows: the split junction box body is placed flatly into the fixed fixture 21 slot in turn, the movable fixture 22 is operated, and the junction box body is completely placed in the fixed unit through the linkage of the rebound switch 33, the slide rail 31 and the spring shaft 222. At this time, the test probe 32 is adjusted to be located just above the junction box diode; the test probe 32 is manually pressed to achieve complete contact between the test probe 32 and the diode in the junction box; feedback is given through the test display panel 60 on whether the junction box is qualified. If qualified, automatic gluing is performed and the junction box is installed to the photovoltaic module to realize the integrated process of photovoltaic junction box testing and gluing; if unqualified, an alarm is prompted.

[0041] In summary, the technical solution of this application has the following beneficial effects:

[0042] This utility model combines photovoltaic junction box testing with a glue-applying device to achieve integrated testing and glue-applying. A test probe is manipulated to the diode inside the junction box via a rebound switch. Pressing the test probe causes it to contact the diode inside the junction box, and the test results are fed back via a test display panel to determine whether it is short-circuited or open-circuited. Simultaneously, the automatic glue-applying device is activated to apply glue to qualified junction boxes, thereby achieving an integrated testing and glue-applying operation. The simultaneous testing and glue-applying process improves module production efficiency and the module qualification rate. Defective junction boxes can be detected before installation, ensuring that quality junction boxes are glued and installed to form photovoltaic modules.

[0043] The above are merely exemplary embodiments of the present application and are not intended to limit the scope of protection of the present application. The scope of protection of the present application is determined by the appended claims.

Claims

1. A photovoltaic junction box testing and gluing device, characterized in that: include: A mounting base plate is used to fix the various components of the test glue-spraying device, and a first side plate is vertically fixedly installed on one side of the mounting base plate; The junction box fixing unit includes a fixed clamp located on the left side of the middle of the mounting base plate and a movable clamp located on the right side of the middle of the mounting base plate. The movable clamp extends and retracts relative to the fixed clamp to achieve clamping and loosening of the photovoltaic junction box. The test unit includes a slide rail and a test probe slidably mounted on the slide rail, with the needle of the test probe facing the mounting base; one end of the slide rail is fixed to the movable fixture using a rebound switch, and the slide rail moves with the movement of the movable fixture; a gluing unit, comprising a gluing device, wherein the gluing device is slidably mounted on a movable rod, one end of the movable rod is movably mounted on a movable groove, and the movable groove is arranged on the transverse center line of the first side plate; A control unit, comprising a gluing console, wherein the gluing console is linearly connected to the gluing device; Wherein, one side of the fixing fixture holding the photovoltaic junction box is provided with an opening leading to a void space for accommodating the wires of the photovoltaic junction box.

2. A photovoltaic junction box testing and gluing device according to claim 1, characterized in that: The fixing fixture is a pair of L-shaped components, and the L-shaped components are arranged facing each other to form a U-shaped space.

3. A photovoltaic junction box testing and gluing device according to claim 1, characterized in that: The movable clamp includes a fixed block and a clamping block. The fixed block is fixed to the mounting base and has a spring shaft running through the center. The clamping block faces the fixed clamp. One end of the spring shaft is fixedly connected to the clamping block and the other end is a free end.

4. A photovoltaic junction box testing and gluing device according to claim 3, characterized in that: The bottom side of the clamping block is placed on the mounting base, and the top side of the clamping block is connected to one end of the slide rail through the rebound switch. The slide rail is provided with the test probe at the end away from the rebound switch, and the test probe is downward toward the mounting base.

5. A photovoltaic junction box testing and gluing device according to claim 1, characterized in that: The movable groove is evenly provided with a plurality of fixed grids, and one end of the movable rod connected to the movable groove is embedded in the fixed grid to fix the position of the movable rod.

6. A photovoltaic junction box testing and gluing device according to claim 1, characterized in that: The test glue-applying device further includes a test display panel, and the test display panel is connected to the test unit.

7. A photovoltaic junction box testing and gluing device according to claim 6, characterized in that: The test display panel is fixedly mounted on a side of the mounting base close to the movable fixture.

8. The photovoltaic junction box testing and gluing device according to claim 1, characterized in that: The gluing console is arranged on a side of the installation base plate close to the fixing fixture, and the gluing console sets and controls the movement of the gluing machine head and the amount of gluing.

9. The photovoltaic junction box testing and gluing device according to claim 1, characterized in that: A plurality of slots are provided along the rod body of the movable rod, and the slots are used for positioning the gluing device.

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