Junction box connecting device

Abstract

The utility model provides a junction box connecting device, which is used for connecting a bus bar of a photovoltaic module to a conducting strip of a junction box, the junction box is fixed on the photovoltaic module, the bus bar extends into the junction box, a first connecting structure is arranged on the conducting strip, and a second connecting structure corresponding to the first connecting structure is arranged on the bus bar. The junction box connecting device comprises a bearing mechanism, a feeding mechanism and a mounting mechanism, wherein the bearing mechanism is configured to bear a photovoltaic module; the feeding mechanism is configured to supply the conductive connecting piece to the mounting mechanism; and the mounting mechanism is arranged above the bearing mechanism, the mounting mechanism is configured to mount the conductive connecting piece on the junction box, and the conductive connecting piece is mounted in the first connecting structure and the second connecting structure, so that the bus bar is conductively connected with the conducting strip. According to the invention, pseudo soldering is fundamentally avoided, and the connection quality of the bus bar and the junction box is ensured.

Description

Technical Field

[0001] This application relates to the field of photovoltaic module production equipment, and specifically to a junction box connection device. Background Art

[0002] Photovoltaic modules are usually encapsulated by a backsheet, a lower layer of encapsulant film, a battery string assembly, an upper layer of encapsulant film, and a front panel. The current generated by the photovoltaic module through photoelectric conversion needs to be led out through a junction box.

[0003] The traditional way to install a junction box is to pass the bus bar on the photovoltaic module into the junction box, and then weld the bus bar to the conductive sheet of the junction box through a welding device.

[0004] Implementing the conductive connection between the bus bar and the conductive sheet by welding cannot avoid the occurrence of false soldering. False soldering may cause the bus bar and the conductive sheet to fail to conduct, resulting in the failure of junction box installation. Utility Model Content

[0005] In order to solve the above technical problems, this application provides a junction box connection device, which adopts the following technical solutions:

[0006] A junction box connection device is used to connect the bus bar of a photovoltaic module to the conductive sheet of a junction box. The junction box is fixed on the photovoltaic module, the bus bar extends into the junction box, a first connection structure is provided on the conductive sheet, and a second connection structure corresponding to the first connection structure is provided on the bus bar.

[0007] The junction box connection device includes a carrying mechanism, a feeding mechanism, and an installation mechanism, where:

[0008] The carrying mechanism is configured to carry the photovoltaic module;

[0009] The feeding mechanism is configured to supply conductive connectors to the installation mechanism;

[0010] The installation mechanism is arranged above the carrying mechanism and is configured to install the conductive connectors on the junction box. Among them, the conductive connectors are installed in the first connection structure and the second connection structure to electrically connect the bus bar and the conductive sheet.

[0011] The junction box connection device provided by this application can install the conductive connectors in the first connection structure and the second connection structure, thereby realizing the conductive connection between the bus bar and the conductive sheet in the junction box. Since the conductive connection between the bus bar and the conductive sheet has been formed, there is no need to weld the bus bar and the junction box anymore, fundamentally avoiding the occurrence of false soldering and ensuring the connection quality between the bus bar and the junction box.

[0012] In some embodiments, the first connection structure is a threaded hole formed in the conductive sheet or a conductive nut fixedly connected to the conductive sheet; the second connection structure is a through hole formed in the bus bar, and the through hole is aligned with the threaded hole or the conductive nut; the conductive connecting member is a conductive screw, and the conductive screw passes through the through hole in the bus bar and is locked in the threaded hole or the conductive nut on the conductive sheet.

[0013] The bus bar is locked on the conductive sheet through the conductive screw, so that the bus bar and the conductive sheet form electrical contact. In addition, since the conductive screw is conductive, it can achieve electrical conduction between the bus bar and the conductive sheet, ensuring an electrical connection is formed between the bus bar and the conductive sheet.

[0014] In some embodiments, the carrying mechanism is a component conveyor, and the carrying mechanism is used to carry the photovoltaic module and convey the photovoltaic module to below the installation mechanism.

[0015] Using a component conveyor to carry the photovoltaic module realizes automatic loading and unloading of the photovoltaic module, improving the installation efficiency of the junction box.

[0016] In some embodiments, the feeding mechanism is configured to supply conductive screws to the installation mechanism; the installation mechanism includes an electric bit head, and the feeding port of the electric bit head is communicated with the discharging port of the feeding mechanism through a blowing pipe. The feeding mechanism is configured to blow the conductive screws into the electric bit head one by one through the blowing pipe, and the electric bit head installs the conductive screws onto the junction box.

[0017] The feeding mechanism blows the conductive screws into the electric bit head through the blowing pipe. During the feeding process, the feeding mechanism does not need to move, thereby reducing the structural complexity and equipment cost of the present application, and the electric bit head can achieve rapid locking and installation of the conductive screws.

[0018] In some embodiments, the junction box connecting device further includes a positioning mechanism, and the positioning mechanism is configured to position the junction box to obtain the position information of the conductive sheet and the bus bar. The installation mechanism is configured to install the conductive connecting member onto the junction box based on the position information of the conductive sheet and the bus bar.

[0019] By setting the positioning mechanism, automatic acquisition of the position information of the conductive sheet and the bus bar is realized, thereby ensuring that the installation mechanism can accurately install the conductive connecting member.

[0020] In some embodiments, at least two junction boxes are fixed on the photovoltaic module; the positioning mechanism includes at least two positioning cameras corresponding to the junction boxes one by one, and the positioning cameras are configured to position the corresponding junction boxes; alternatively, the positioning mechanism includes one positioning camera, and the positioning camera is configured to move above each junction box in turn to position each junction box.

[0021] By setting up positioning cameras corresponding one by one to the junction boxes, synchronous positioning of all the junction boxes on the photovoltaic module is achieved, enabling the installation mechanism to complete the installation of each junction box based on the uniformly obtained positioning information corresponding to each junction box, thereby improving the installation efficiency of the junction boxes. By setting up a movable positioning camera, the positioning camera can be sequentially moved above each junction box to implement sequential positioning of each junction box, thus reducing the structural complexity and equipment cost of this application.

[0022] In some embodiments, at least two junction boxes are fixed on the photovoltaic module; the junction box connecting device includes at least two installation mechanisms corresponding one by one to the junction boxes, and the installation mechanism is configured to install the conductive connecting piece onto the corresponding junction box; alternatively, the junction box connecting device includes one installation mechanism, and the installation mechanism is configured to sequentially move above each junction box to install the conductive connecting piece onto each junction box.

[0023] By setting up installation mechanisms corresponding one by one to the junction boxes, simultaneous installation of all the junction boxes on the photovoltaic module is achieved, improving the installation efficiency of the junction boxes. By setting up a movable installation mechanism, the installation mechanism moves above each junction box to implement sequential installation of each junction box, thus reducing the structural complexity and equipment cost of this application.

[0024] In some embodiments, the carrying mechanism includes at least two conveying components arranged side by side at intervals and a supporting mechanism, where: each conveying component cooperates to convey the photovoltaic module, so that the junction box fixed on the photovoltaic module is sent to a predetermined position; the supporting mechanism is arranged between two adjacent conveying components, and after the junction box reaches the predetermined position, the supporting mechanism is configured to support the junction box from the lower side of the photovoltaic module.

[0025] At least two conveying components cooperate to carry and convey the photovoltaic module, improving the carrying and conveying stability of the photovoltaic module. By arranging the supporting mechanism between two adjacent conveying components, after the junction box reaches the predetermined position, the supporting mechanism can support the junction box from the lower side of the photovoltaic module, thereby preventing the installation mechanism from damaging the photovoltaic module when installing the conductive connecting piece onto the junction box.

[0026] In some embodiments, the supporting mechanism includes a lifting part and at least one supporting block, where: the supporting block is connected to the movable part of the lifting part and is located below the predetermined position, and the lifting part is configured to drive the supporting block to lift and lower; after the junction box reaches the predetermined position, the lifting part drives the supporting block to rise, so that the supporting block presses against the lower surface of the photovoltaic module to implement the support of the junction box.

[0027] In the initial state, the support block is in the low-lying avoidance position. Driven by the conveying component, the photovoltaic module passes above the support block. After the photovoltaic module reaches the predetermined position, the lifting part drives the support block to rise so that the support block presses against the lower surface of the photovoltaic module to support the junction box.

[0028] In some embodiments, the junction box connecting device further includes a first rectifying mechanism and a second rectifying mechanism, wherein: the first rectifying mechanism is arranged on both sides of the carrying mechanism along the first direction, and the first rectifying mechanism is configured to rectify the photovoltaic module along the first direction; the second rectifying mechanism is arranged on both sides of the carrying mechanism along the second direction, and the second rectifying mechanism is configured to rectify the photovoltaic module along the second direction; the first direction is perpendicular to the second direction.

[0029] By providing the first rectifying mechanism and the second rectifying mechanism, the position of the photovoltaic module is rectified, ensuring that the installation mechanism can smoothly install the junction box. Description of the Drawings

[0030] Figure 1 It is a schematic structural diagram of the junction box connecting device in the embodiment of the present application;

[0031] Figure 2 It is a schematic structural diagram of the carrying mechanism in the embodiment of the present application;

[0032] Figure 3 It is an assembly schematic diagram of the installation mechanism and the positioning mechanism in the embodiment of the present application;

[0033] Figure 4 It is a schematic structural diagram of the installed junction box in an embodiment of the present application;

[0034] Figure 5 It is Figure 4 the A-A cross-sectional view of;

[0035] Figure 6 It is a schematic structural diagram of the installed junction box in another embodiment of the present application;

[0036] Figure 7 It is Figure 6 the B-B cross-sectional view of.

[0037] Figures 1 to 7 It includes:

[0038] Carrying mechanism 1: Conveying component 11, support mechanism 12;

[0039] Feeding mechanism 2;

[0040] Installation mechanism 3;

[0041] Positioning mechanism 4: Camera 41, light source 42;

[0042] The first rectifying mechanism 5;

[0043] The second rectifying mechanism 6;

[0044] The moving module 7;

[0045] The junction box 101;

[0046] The bus bar 102;

[0047] The conductive sheet 103;

[0048] The threaded hole 104;

[0049] The conductive nut 105;

[0050] The conductive screw 106. Specific embodiments

[0051] To make the above objects, features, and advantages of the present application more obvious and understandable, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0052] The present application provides a junction box connection device, which is used to connect the bus bar of a photovoltaic module to the conductive sheet of a junction box. Among them, the junction box is fixed on the photovoltaic module, the bus bar extends into the junction box, a first connection structure is provided on the conductive sheet, and a second connection structure corresponding to the first connection structure is provided on the bus bar. As Figure 1 shown, the junction box connection device in the embodiment of the present application includes a bearing mechanism 1, a feeding mechanism 2, and an installation mechanism 3, where:

[0053] The bearing mechanism 1 is configured to bear the photovoltaic module.

[0054] The feeding mechanism 2 is configured to supply conductive connectors to the installation mechanism 3.

[0055] The installation mechanism 3 is arranged above the bearing mechanism 1, and the installation mechanism 3 is configured to install the conductive connectors on the junction box. Among them, the conductive connectors are installed in the first connection structure of the conductive sheet and the second connection structure of the bus bar, so that the bus bar is electrically connected to the conductive sheet.

[0056] The junction box connection device provided by the embodiment of the present application can install the conductive connectors in the first connection structure of the conductive sheet and the second connection structure of the bus bar, so that the bus bar is electrically connected to the conductive sheet. After the installation of the conductive connectors is completed, since the bus bar and the conductive sheet are already electrically connected, there is no need to weld the bus bar and the junction box anymore, fundamentally avoiding the occurrence of virtual soldering and ensuring the connection quality between the bus bar and the junction box.

[0057] As Figures 4 to 5As shown, in an alternative embodiment, the first connection structure is a threaded hole 104 formed in the conductive sheet 103, and the second connection structure is a through hole formed in the bus bar 102. The through hole is aligned with the threaded hole 104. The conductive connecting member is a conductive screw 106. The conductive screw 106 passes through the through hole in the bus bar 102 and is locked in the threaded hole 104 on the conductive sheet 103, so that the bus bar 102 and the conductive sheet 103 are in electrical contact. In addition, since the conductive screw 106 is conductive, it can achieve electrical conduction between the bus bar 102 and the conductive sheet 103, ensuring an electrical connection is formed between the bus bar 102 and the conductive sheet 103 in the junction box 101.

[0058] To ensure the screwing force between the conductive screw 106 and the conductive sheet 103, so as to form a stable electrical contact between the bus bar 102 and the conductive sheet 103, the conductive screw 106 needs to lock at least three threads of the threaded hole 104. For the junction box with a relatively thin conductive sheet 103, directly preparing the threaded hole 104 on the conductive sheet 103, the number of threads of the threaded hole 104 may be difficult to meet the locking requirements. For this reason, local thickening treatment can be performed on the part of the conductive sheet 103 corresponding to the threaded hole 104, or overall thickening treatment can be performed on the conductive sheet 103, or a conductive sheet 103 with a larger thickness can be directly used to ensure that a threaded hole 104 with a sufficient number of threads is prepared on the conductive sheet 103, and finally the conductive screw 106 locks the bus bar 102 on the conductive sheet 103.

[0059] As Figures 6 to 7 shown, in another alternative embodiment, the first connection structure is a conductive nut 105 fixedly connected to the conductive sheet 103, and the second connection structure is a through hole formed in the bus bar 102. The through hole is aligned with the conductive nut 105. The conductive connecting member is a conductive screw 106. The conductive screw 106 passes through the through hole in the bus bar 102 and is locked in the conductive nut 105 on the conductive sheet 103, so that the bus bar 102 and the conductive sheet 103 are in electrical contact. In addition, since the conductive screw 106 is conductive, it can achieve electrical conduction between the bus bar 102 and the conductive sheet 103, ensuring an electrical connection is formed between the bus bar 102 and the conductive sheet 103 in the junction box 101.

[0060] In yet another alternative embodiment, the first connection structure is a first through hole formed in the conductive sheet 103, the second connection structure is a second through hole formed in the bus bar 102, and the second through hole is aligned with the first through hole. The conductive connecting member is a conductive screw with a self-locking function. The conductive screw passes through the second through hole in the bus bar 102 and is locked in the first through hole in the conductive sheet 103, thereby locking the bus bar 102 to the conductive sheet 103. Optionally, the conductive screw includes a locking rod, a pressing head, and an elastic clamping portion. The pressing head is connected to one end of the locking rod, the elastic clamping portion is connected to the other end of the locking rod. The locking rod passes through the second through hole and the first through hole, the pressing head presses the bus bar 102 downward, and the elastic clamping portion is elastically tightened in the first through hole.

[0061] Optionally, in some embodiments, the carrying mechanism 1 is a component conveyor. The carrying mechanism 1 is used to carry the photovoltaic module and convey the photovoltaic module to the lower side of the installation mechanism 3. Using a component conveyor as the carrying mechanism 1 can automatically convey the photovoltaic module to be installed with a junction box to the lower side of the installation mechanism 3, and automatically output the photovoltaic module to the blanking station behind the installation mechanism 3 after the junction box is installed, thereby realizing automatic loading and unloading of the photovoltaic module and improving the installation efficiency of the junction box.

[0062] Optionally, the carrying mechanism 1 includes at least two conveying components 11 arranged side by side at intervals and a supporting mechanism 12, where: each conveying component 11 cooperates to convey the photovoltaic module so that the junction box fixed on the photovoltaic module is sent to a predetermined position. The supporting mechanism 12 is arranged between two adjacent conveying components 11. After the junction box reaches the predetermined position, the supporting mechanism 12 supports the junction box from the lower side of the photovoltaic module.

[0063] Cooperating two or more conveying components 11 to carry and convey the photovoltaic module can ensure the stability of carrying and conveying the photovoltaic module. In addition, by arranging the supporting mechanism 12 between two adjacent conveying components 11, after the junction box reaches the predetermined position, the supporting mechanism 12 can support the junction box from the lower side of the photovoltaic module, preventing the junction box from pressing and damaging the photovoltaic module when the installation mechanism 3 installs the conductive connecting member onto the junction box.

[0064] Optionally, as Figure 2 shown, the conveying component 11 adopts a belt conveying component, and its quantity is set to be able to stably convey the photovoltaic module, such as Figure 2 the 4 in

[0065] Optionally, in some other embodiments, the carrying mechanism 1 can also adopt a fixedly arranged platform.

[0066] Optionally, the support mechanism 12 includes a lifting part and at least one support block, where: the support block is connected to the movable part of the lifting part and is located below the predetermined position, and the lifting part is configured to drive the support block to lift. After the junction box reaches the predetermined position, the lifting part drives the support block to rise, so that the support block presses against the lower surface of the photovoltaic module to support the junction box.

[0067] In the initial state, the support block is in the avoidance low position. Driven by the conveying component 11, the photovoltaic module passes above the support block, and the support block will not hinder the conveying of the conveying component 11. When the photovoltaic module reaches the predetermined position, the lifting part drives the support block to rise, so that the support block presses against the lower surface of the photovoltaic module to support the junction box.

[0068] Optionally, at least two junction boxes are fixed on the photovoltaic module. In order to implement targeted support for each junction box and improve the support effect, at least two support blocks corresponding to the junction boxes one by one are installed on the movable part of the lifting part, and each support block is used to support one junction box.

[0069] As Figure 1 and Figure 3 shown, optionally, when using conductive screws as conductive connectors, the feeding mechanism 2 is configured to supply conductive screws to the installation mechanism 3. The installation mechanism 3 includes an electric screwdriver bit. The feeding port of the electric screwdriver bit is communicated with the discharging port of the feeding mechanism 2 through a blowing pipe. The feeding mechanism 2 is configured to blow the conductive screws into the electric screwdriver bit one by one through the blowing pipe, and the electric screwdriver bit installs the conductive screws on the junction box.

[0070] The feeding mechanism 2 blows the conductive screws into the electric screwdriver bit through the blowing pipe. During the feeding process, the feeding mechanism does not need to move, thus reducing the structural complexity and cost of the equipment. In addition, the electric screwdriver bit can quickly lock and install the conductive screws.

[0071] The structure and working process of the electric screwdriver bit are well known to those skilled in the art. When using conductive screws as conductive connectors, after the electric screwdriver bit presses the conductive screws into the through holes on the bus bar 102, it screws the conductive screws into the threaded holes 104 on the conductive sheet 103.

[0072] When using conductive screws as conductive connectors, the electric screwdriver bit directly presses the conductive screws into the through holes on the bus bar 102 and the conductive sheet 103. Of course, other types of installation heads can also be used to press the conductive screws into the through holes on the bus bar 102 and the conductive sheet 103.

[0073] As Figure 1As shown, optionally, the junction box connecting device in the embodiments of the present application further includes a positioning mechanism 4, and the positioning mechanism 4 is configured to position the junction box to obtain the position information of the conductive sheet and the bus bar. The installation mechanism 3 installs the conductive connector on the junction box based on the position information of the conductive sheet and the bus bar.

[0074] By providing the positioning mechanism 4, automatic acquisition of the position information of the conductive sheet and the bus bar is achieved, thereby ensuring that the installation mechanism 3 can accurately install the conductive connector into the first connection structure and the second connection mechanism.

[0075] Optionally, at least two junction boxes are fixed on the photovoltaic module. Correspondingly, the positioning mechanism 4 includes at least two positioning cameras 41 corresponding to the junction boxes one by one, and the positioning cameras 41 are configured to position the corresponding junction boxes. For example, Figure 1 In the shown embodiment, the positioning mechanism 4 includes three positioning cameras 41, and the three positioning cameras 41 can synchronously position the three junction boxes on the photovoltaic module.

[0076] By providing the positioning cameras 41 corresponding to the junction boxes one by one, synchronous positioning of all the junction boxes on the photovoltaic module is achieved. In this way, the installation mechanism 3 can synchronously or continuously complete the installation of the junction boxes on the photovoltaic module based on the positioning information of each junction box, thereby improving the installation efficiency of the junction boxes.

[0077] To save equipment costs, the positioning mechanism 4 may also include only one positioning camera 41, and the positioning camera 41 is configured to be movable above each junction box in sequence to position each junction box.

[0078] For the case where at least two junction boxes are fixed on the photovoltaic module, the junction box connecting device may also include at least two installation mechanisms 3 corresponding to the junction boxes one by one, and each installation mechanism 3 is configured to install the conductive connector on the corresponding junction box. For example, Figure 1 In the shown embodiment, the junction box connecting device includes three installation mechanisms 3, and the three installation mechanisms 3 can synchronously install the three junction boxes on the photovoltaic module.

[0079] By providing the installation mechanisms 3 corresponding to the junction boxes one by one, synchronous installation of all the junction boxes on the photovoltaic module is achieved, thereby improving the installation efficiency of the junction boxes.

[0080] Similarly, to save equipment costs, the junction box connecting device in the embodiments of the present application may also include only one installation mechanism 3, and the installation mechanism 3 can move above each junction box in sequence to install the conductive connectors on each junction box in sequence.

[0081] As Figure 3As shown, optionally, the junction box connecting device in the embodiments of the present application further includes a moving module 7. The positioning camera 41 and the mounting mechanism 3 are both arranged on the moving part of the moving module 7. The moving module 7 drives the positioning camera 41 and the mounting mechanism 3 to move above each junction box on the photovoltaic module in sequence. After the positioning camera 41 completes the positioning of one junction box each time, the mounting mechanism 3 immediately installs the conductive connecting piece into the junction box.

[0082] Optionally, the moving module 7 includes an X-axis driving module, a Y-axis driving module, a Z-axis driving module and a mounting plate. Among them, the Y-axis driving module is connected to the driving end of the X-axis driving module, the Z-axis driving module is connected to the driving end of the Y-axis driving module, and the mounting plate is connected to the driving end of the Z-axis driving module. The positioning camera 41 and the mounting mechanism 3 are both mounted on the mounting plate. The X-axis driving module is used to drive the positioning camera 41 and the mounting mechanism 3 to move synchronously in the X-axis direction, the Y-axis driving module is used to drive the positioning camera 41 and the mounting mechanism 3 to move synchronously in the Y-axis direction, and the Z-axis driving module is used to drive the positioning camera 41 and the mounting mechanism 3 to lift and lower synchronously. Through the combined driving of the X-axis driving module, the Y-axis driving module and the Z-axis driving module, the moving module 7 automatically and accurately moves the positioning camera 41 and the mounting mechanism 3 above each junction box on the photovoltaic module.

[0083] In order to improve the positioning effect of the positioning mechanism 4, optionally, the positioning mechanism 4 further includes a light source 42 corresponding to the positioning camera 41. The light source 42 cooperates with the positioning camera 41 to perform photographing and positioning on the junction box.

[0084] As Figure 2 shown, optionally, the junction box connecting device in the embodiments of the present application further includes a first rectifying mechanism 5 and a second rectifying mechanism 6, where: the first rectifying mechanism 5 is arranged on both sides of the carrying mechanism 1 along the first direction (for example, the Y-axis direction), and the first rectifying mechanism 5 is configured to rectify the photovoltaic module along the first direction. The second rectifying mechanism 6 is arranged on both sides of the carrying mechanism along the second direction (for example, the X-axis direction), and the second rectifying mechanism is configured to rectify the photovoltaic module along the second direction. The first direction is perpendicular to the second direction.

[0085] By setting the first rectifying mechanism 5 and the second rectifying mechanism 6, the position rectification of the photovoltaic module located at the predetermined position is realized, ensuring that the mounting mechanism 3 can smoothly install the conductive connecting piece into the junction box.

[0086] Both the first alignment mechanism 5 and the second alignment mechanism 6 can adopt existing alignment mechanisms capable of aligning two opposite sides of a photovoltaic module. Taking the first alignment mechanism 5 as an example, for instance, it may include a first alignment member and a second alignment member. Among them, the first alignment member is located on the first side of the carrying mechanism 1 along the first direction, and the second alignment member is located on the second side of the carrying mechanism 1 along the first direction. The first alignment member and the second alignment member are configured to be able to translate towards or away from the carrying mechanism 1, so as to clamp and align the two sides of the photovoltaic module extending along the second direction when approaching the photovoltaic module. The first alignment member and the second alignment member can adopt alignment plates or alignment wheels, for example.

[0087] The present application also provides a method for connecting a junction box, which is used to connect the busbars of a photovoltaic module to the conductive sheets of the junction box. Among them, the junction box is fixed on the photovoltaic module, the busbars extend into the junction box, a first connection structure is provided on the conductive sheet, and a second connection structure corresponding to the first connection structure is provided on the busbar.

[0088] The method for connecting a junction box in the embodiments of the present application includes the following steps:

[0089] S1. Carry the photovoltaic module.

[0090] S2. Obtain the position information of the junction box on the photovoltaic module.

[0091] S3. Install the conductive connecting member in the first connection structure and the second connection structure, so that the busbar is electrically connected to the conductive sheet.

[0092] The method for connecting a junction box in the embodiments of the present application can install the electrical connection in the first connection structure on the conductive sheet and the second connection structure on the busbar, so as to realize the electrical connection between the busbar and the conductive sheet in the junction box.

[0093] Since an electrical connection has been formed between the busbar and the conductive sheet, there is no need to weld the busbar and the junction box anymore, fundamentally avoiding the occurrence of false soldering and ensuring the connection quality between the busbar and the junction box.

[0094] The method for connecting a junction box in the embodiments of the present application can be implemented by the junction box connecting device in any of the above embodiments. For further implementation details, reference can be made to the relevant content about the junction box connecting device in the previous text. For the sake of brevity of description, it will not be elaborated here.

[0095] The present application also provides a method for processing a photovoltaic module, which includes the following steps:

[0096] S10. Arrange a plurality of battery strings according to a predetermined layout rule.

[0097] S20. Obtain a plurality of busbars and process through holes on some of the busbars.

[0098] S30. Weld a bus bar with a through hole to the first welding part of several arranged battery strings. The first welding part is the part that needs to be connected to the junction box, and weld the remaining bus bars to the second welding parts of the several battery strings to obtain a battery string assembly.

[0099] S40. Stack a back plate, a lower layer of glue film, the battery string assembly, an upper layer of glue film, and a front panel in sequence, and perform lamination encapsulation to obtain a photovoltaic module. Among them, the bus bar with a through hole passes through a reserved hole on the back plate.

[0100] S50. Fix the junction box to the back plate of the photovoltaic module, and make the bus bar with a through hole penetrate into the junction box. The conductive sheet of the junction box is provided with a threaded hole or a conductive nut.

[0101] S60. Bend the bus bar that penetrates into the junction box so that the through hole on the bus bar is aligned with the threaded hole or the conductive nut on the conductive sheet.

[0102] S70. Pass a conductive screw through the through hole on the bus bar and lock it in the threaded hole or the conductive nut on the conductive sheet so that the bus bar and the conductive sheet are pressed and conduct electricity.

[0103] The processing method of the photovoltaic module of the present application realizes the installation of the junction box of the photovoltaic module. In particular, the bus bar on the photovoltaic module is locked to the conductive sheet in the junction box by a conductive screw, so that a stable electrical connection is generated between the bus bar and the conductive sheet, and there is no need to weld the bus bar and the junction box anymore, fundamentally avoiding the occurrence of virtual soldering and ensuring the connection quality between the bus bar and the junction box.

[0104] The above has described the present application in sufficient detail and with a certain particularity. Those of ordinary skill in the art should understand that the description in the embodiments is only exemplary, and all changes made without departing from the true spirit and scope of the present application should fall within the protection scope of the present application. The scope to be protected by the present application is defined by the claims described, rather than by the above description in the embodiments.

Claims

1. A junction box connection device, characterized in that: Used to connect the busbar of the photovoltaic module to the conductive sheet of the junction box, the junction box is fixed on the photovoltaic module, the busbar extends into the junction box, the conductive sheet is provided with a first connection structure, and the busbar is provided with a second connection structure corresponding to the first connection structure, The junction box connection device includes a bearing mechanism, a feeding mechanism and a mounting mechanism, wherein: The carrying mechanism is configured to carry the photovoltaic assembly; The feeding mechanism is configured to supply the conductive connecting member to the mounting mechanism; The mounting mechanism is disposed above the supporting mechanism, and is configured to mount a conductive connector on the junction box, wherein the conductive connector is mounted in the first connection structure and the second connection structure to conductively connect the busbar to the conductive sheet.

2. The junction box connection device according to claim 1, characterized in that: The first connection structure is a threaded hole opened on the conductive sheet, or a conductive nut fixedly connected to the conductive sheet; the second connection structure is a through hole opened on the bus bar, and the through hole is directly opposite to the threaded hole or the conductive nut; the conductive connecting piece is a conductive screw, which passes through the through hole on the bus bar and is locked in the threaded hole or the conductive nut on the conductive sheet.

3. The junction box connection device according to claim 1, characterized in that: The carrying mechanism is a component conveyor, and the carrying mechanism is used to carry the photovoltaic components and convey the photovoltaic components to the bottom of the installation mechanism.

4. The junction box connection device according to claim 2, characterized in that: The feeding mechanism is configured to supply conductive screws to the installation mechanism; the installation mechanism includes an electric screwdriver head, a feed port of the electric screwdriver head is connected to a discharge port of the feeding mechanism via an air blow pipe, the feeding mechanism is configured to blow the conductive screws into the electric screwdriver head one by one via the air blow pipe, and the electric screwdriver head installs the conductive screws onto the junction box.

5. The junction box connection device according to claim 1, characterized in that: The junction box connection device also includes a positioning mechanism, which is configured to position the junction box to obtain position information of the conductive sheet and the bus bar, and the installation mechanism is configured to install the conductive connector on the junction box based on the position information of the conductive sheet and the bus bar.

6. The junction box connection device according to claim 5, characterized in that: At least two junction boxes are fixed on the photovoltaic assembly; The positioning mechanism includes at least two positioning cameras corresponding to the junction boxes one by one, and the positioning cameras are configured to position the corresponding junction boxes; or, the positioning mechanism includes one positioning camera, and the positioning camera is configured to move to the top of each of the junction boxes in turn to position each of the junction boxes.

7. The junction box connection device according to claim 1, characterized in that: At least two junction boxes are fixed on the photovoltaic assembly; The junction box connection device includes at least two mounting mechanisms corresponding to the junction boxes one by one, and the mounting mechanisms are configured to mount the conductive connector on the corresponding junction boxes; or, the junction box connection device includes one mounting mechanism, and the mounting mechanism is configured to move to the top of each junction box in turn to mount the conductive connector on each junction box.

8. The junction box connection device according to claim 3, characterized in that: The carrying mechanism comprises at least two conveying assemblies and a supporting mechanism arranged side by side and spaced apart from each other, wherein: Each of the conveying assemblies cooperates to convey the photovoltaic assembly so that the junction box fixed on the photovoltaic assembly is conveyed to a predetermined position; The supporting mechanism is disposed between two adjacent conveying assemblies. After the junction box reaches a predetermined position, the supporting mechanism is configured to support the junction box from the lower side of the photovoltaic assembly.

9. The junction box connection device according to claim 8, characterized in that: The support mechanism comprises a lifting part and at least one support block, wherein: The support block is connected to the movable part of the lifting part and is located below the predetermined position, and the lifting part is configured to drive the support block to move up and down; After the junction box reaches the predetermined position, the lifting part drives the support block to rise, so that the support block is pressed against the lower surface of the photovoltaic component to support the junction box.

10. The junction box connection device according to claim 1, characterized in that: The junction box connection device further comprises a first regularization mechanism and a second regularization mechanism, wherein: The first aligning mechanism is disposed on both sides of the carrying mechanism along a first direction, and the first aligning mechanism is configured to align the photovoltaic assembly along the first direction; The second aligning mechanism is disposed on both sides of the carrying mechanism along the second direction, and the second aligning mechanism is configured to align the photovoltaic assembly along the second direction; The first direction is perpendicular to the second direction.

Images