Convergence belt bending and carrying device

Abstract

The utility model relates to the technical field of photovoltaic module production, in particular to a bus bar bending and carrying device which comprises a carrying body and at least one bending adsorption assembly arranged at the bottom of the carrying body, and bearing tables corresponding to the bending adsorption assembly in number are arranged below the bending adsorption assembly. Each bending adsorption assembly comprises a plurality of suction cups which are linearly arranged at intervals, at least one female die arranged among the multiple suction cups, and liftable rollers arranged on the two sides of each female die; the bottom ends of the suction cups are higher than the bottom ends of the female dies. Liftable male dies corresponding to the female dies in a one-to-one mode are arranged on the bearing table. When the bus bar is bent, the roller moves downwards to a low position to be in contact with the bus bar, and the male die moves upwards to be matched with the female die to enable the bus bar to form an arch structure. In the bending process, the two sides of the bent portion of the bus bar can contract, friction force can be reduced through rotation of the rolling wheels, the suction cup does not make contact with the bus bar at the moment, and the suction cup cannot be affected when the bus bar contracts.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic assembly production, and in particular to a busbar bending and conveying device. Background Art

[0002] A photovoltaic module structure made of back-contact cell strings such as Figure 1 As shown, the two ends of the photovoltaic module are end bus straps, the middle of the photovoltaic module is the middle bus strap, the back contact battery string is located between the end bus straps and the middle bus straps and is connected by welding strips, and the transverse bus straps cross the battery string to connect the end bus straps at both ends of the photovoltaic module together.

[0003] In the back-contact battery string, the soldering ribbon is welded to the back of the battery cell. Due to the different thermal expansion coefficients between the battery cell and the soldering ribbon, when a certain welding temperature is used to weld the soldering ribbon, the relative displacement between the two remains fixed. When cooled to room temperature, due to the different thermal expansion coefficients of different objects, the shrinkage of the soldering ribbon is much greater than the shrinkage of the battery cell. Since the soldering ribbon and the battery cell are fixed and cannot change in displacement, the soldering ribbon shrinks and pulls the battery cell to form a unilateral warp. During the lamination process of the back-contact battery string, the battery cell is flattened and the back-contact battery string becomes longer. Therefore, when making the lateral busbar, an arched structure is made on the lateral busbar and then welded to the end busbar to compensate for the elongation of the back-contact battery string after lamination.

[0004] In the prior art, a concave mold is provided on the converging strip adsorption and transporting device, and a convex mold is provided on the receiving platform. Before making the arch structure, the suction cup on the converging strip adsorption and transporting device first adsorbs the transverse converging strip, and then the concave mold and the convex mold are used together to form the arch structure. During this process, the transverse converging strip will shrink toward the arch structure and pull the suction cup. There is a risk of the transverse converging strip detaching from the suction cup, and the service life of the suction cup will be affected. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a device for bending and transporting a busbar.

[0006] To achieve the above purpose, the utility model provides the following solutions:

[0007] A device for bending and transporting a convergence strip comprises a transport body and at least one bending adsorption assembly arranged at the bottom of the transport body, wherein a receiving platform corresponding to the number of the bending adsorption assemblies is provided below the bending adsorption assemblies; each of the bending adsorption assemblies comprises a plurality of suction cups arranged at linear intervals, at least one die arranged between the plurality of suction cups, and rollers arranged on both sides of each die in a liftable manner; the adsorption end of the suction cup is higher than the bottom end of the die, and a liftable convex die is provided on the receiving platform in a one-to-one correspondence with the die.

[0008] Furthermore, each of the concave dies is provided with two rollers, the two rollers on both sides of the concave dies are arranged on a first mounting seat, and a first driving member is provided on the conveying body corresponding to the first mounting seat one by one, and the first driving member is drivingly connected to the first mounting seat to enable the first mounting seat to move up and down.

[0009] Furthermore, the first mounting seat includes a first seat body and a first floating seat, each of the rollers is rotatably connected to one of the first floating seats, and the first floating seat is elastically floatingly connected to the first mounting seat.

[0010] Furthermore, the roller is a bearing rotatably connected to the bottom of the first mounting seat.

[0011] Furthermore, a plurality of liftable pressing blocks are provided between the plurality of suction cups in the same bending adsorption assembly, and each of the pressing blocks is located between two adjacent suction cups.

[0012] Furthermore, the pressing block is elastically and floatingly connected to the bottom of the second floating seat, and a second driving member is provided on the transport body. The second driving member is drivingly connected to the second floating seat to enable the second floating seat to move up and down.

[0013] Furthermore, the transport body includes a horizontal moving mechanism, a lifting mechanism and a mounting plate. The horizontal moving mechanism is driven and connected to the lifting mechanism to enable the lifting mechanism to move horizontally. The lifting mechanism is driven and connected to the mounting plate to enable the mounting plate to move up and down. The bending adsorption assembly is installed at the bottom of the mounting plate.

[0014] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0015] The utility model provides a converging strip bending and conveying device, which comprises a conveying body and at least one bending adsorption component arranged at the bottom of the conveying body, and a receiving platform corresponding to the number of the bending adsorption components is provided below the bending adsorption components; each bending adsorption component comprises a plurality of suction cups arranged at linear intervals, at least one die arranged between the plurality of suction cups, and rollers arranged on both sides of each die in a liftable manner; the adsorption end of the suction cup is higher than the bottom end of the die, and a liftable convex die is provided on the receiving platform in a one-to-one correspondence with the die.

[0016] When bending the busbar, the roller moves down to a low position to contact the busbar, and the punch moves up to cooperate with the die to form an arched structure of the busbar. During the bending process, the two sides of the bent part of the busbar will shrink, and the rotation of the roller can reduce the friction. At this time, the suction cup does not contact the busbar, and the busbar will not affect the suction cup when it shrinks. After the arched structure is formed, the roller moves up to a high position higher than the suction end of the suction cup, and the suction cup moves down to absorb the busbar and then transports it to the target position. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a photovoltaic module in the utility model;

[0018] Figure 2 This is a front view of the utility model of the busbar bending and transporting device;

[0019] Figure 3 This is a simplified diagram of a working state of the utility model of the busbar bending and handling device;

[0020] Figure 4 This is a schematic diagram of the assembly method of the roller in the utility model;

[0021] Figure 5 It is a schematic diagram of the assembly method of the pressure block in the utility model.

[0022] Among them: 10, horizontal moving mechanism; 20, lifting mechanism; 30, mounting plate; 40, receiving platform; 50, punch; 51, third driving member; 60, suction cup; 70, die; 80, roller; 81, first mounting seat; 811, first seat body; 812, first floating seat; 813, spring; 814, connecting rod; 815, limiting cap; 82, first driving member; 83, first connecting plate; 90, pressing block; 91, second floating seat; 92, second driving member; 93, second connecting plate; 100, photovoltaic module; 110, end bus bar; 120, back contact battery string; 130, middle bus bar; 140, lateral bus bar; 150, insulating film. DETAILED DESCRIPTION

[0023] The technical solution and technical effects of the present invention are further described in detail below in conjunction with the accompanying drawings of the present invention.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features directly contacting, and can also include the first and second features not directly contacting but contacting through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] In the description of this embodiment, the terms "upper", "lower", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0026] like Figure 1 As shown, the photovoltaic module 100 has three transverse busbars 140. Figure 2 As shown, a bending transverse busbar 140 is provided. The utility model provides a busbar bending and handling device, including a handling body and at least one bending adsorption assembly arranged at the bottom of the handling body, and a receiving platform 40 corresponding to the number of the bending adsorption assembly is provided below the bending adsorption assembly; each bending adsorption assembly includes a plurality of suction cups 60 arranged linearly at intervals, at least one die 70 arranged between the plurality of suction cups 60, and rollers 80 arranged on both sides of each die 70 in a manner that can be lifted and lowered; the adsorption end of the suction cup 60 is higher than the bottom end of the die 70, and a convex die 50 that can be lifted and lowered is provided on the receiving platform 40 in a one-to-one correspondence with the die 70. Among them, the handling body includes a horizontal moving mechanism 10, a lifting mechanism 20 and a mounting plate 30, the horizontal moving mechanism 10 is connected to the lifting mechanism 20 by driving so that the lifting mechanism 20 moves horizontally, the lifting mechanism 20 is connected to the mounting plate 30 by driving so that the mounting plate 30 moves up and down, and the bending adsorption assembly is installed at the bottom of the mounting plate 30. The horizontal moving mechanism 10 is preferably an electric cylinder or a linear module, and the lifting mechanism 20 is preferably an electric cylinder.

[0027] Please combine again Figure 3When bending the transverse busbar 140, the transverse busbar 140 is first laid on the receiving platform 40, at which time the punch 50 is located directly below the transverse busbar 140, and the die 70 is located directly above the transverse busbar 140. The roller 80 moves down to a low position to contact the transverse busbar 140, and the punch 50 moves up to cooperate with the die 70 to form an arched structure of the transverse busbar 140. During the bending process, the two sides of the bent part of the transverse busbar 140 will shrink, and the rotation of the roller 80 can reduce the friction. At this time, the suction cup 60 does not contact the transverse busbar 140, and the transverse busbar 140 will not affect the suction cup 60 when it shrinks. After the arched structure is formed, the roller 80 moves up to a high position and is higher than the position of the adsorption end of the suction cup 60, and the mounting plate 30 moves down. After the suction cup 60 adsorbs the transverse busbar 140, it is transported to the target position.

[0028] It should be noted that the busbar bending and handling device provided by the present invention is used to bend busbars, and the busbars include end busbars 110, middle busbars 130, and transverse busbars 140. In some photovoltaic modules 100, the end busbars 110 and the middle busbars 130 are directly welded to the battery cells and also need to be bent.

[0029] Please combine again Figure 4 Each die 70 is provided with two rollers 80, and the two rollers 80 on both sides of the die 70 are arranged on the first mounting seat 81. The first driving member 82 is provided on the transport body in one-to-one correspondence with the first mounting seat 81. The first driving member 82 is connected to the first mounting seat 81 to make the first mounting seat 81 move up and down, that is, the lifting and lowering of the two rollers 80 on both sides of the same die 70 is synchronously controlled by one first driving member 82. The first driving member 82 is fixed to the mounting plate 30 through a first connecting plate 83. The first driving member 82 is preferably a cylinder or a push rod motor.

[0030] Further, the first mounting seat 81 includes a first seat body 811 and a first floating seat 812, each roller 80 is rotatably connected to a first floating seat 812, the first floating seat 812 is elastically and floatingly connected to the first mounting seat 81, and the roller 80 can float relative to the first seat body 811, and plays a buffering role when the roller 80 contacts the busbar. Specifically, the first mounting seat 81 also includes a spring 813, a connecting rod 814 and a limiting cap 815, the bottom end of the connecting rod 814 is fixedly connected to the first floating seat 812, the first seat body 811 is provided with an inverted step hole, the top end of the connecting rod 814 passes through the step hole from bottom to top and is fixed to the limiting cap 815, the spring 813 is passed through the connecting rod 814, the top end thereof abuts against the step surface of the step hole, and the bottom end abuts against the top of the first floating seat 812. Preferably, the roller 80 is a bearing rotatably connected to the bottom of the first mounting seat 81.

[0031] like Figure 1As shown, in the photovoltaic module 100, an insulating adhesive film 150 is also laid between the transverse busbar 140 and the back contact battery string 120. The insulating adhesive film 150 is a hot melt adhesive film. Before the busbar bending and conveying device conveys the transverse busbar 140 to the back contact battery string 120, the busbar bending and conveying device first places the transverse busbar 140 on the insulating adhesive film 150 located on the heating table, so that the transverse busbar 140 and the insulating adhesive film 150 are pre-bonded. Figure 4 In order to press the bonding point between the transverse busbar 140 and the insulating film 150, a plurality of liftable pressing blocks 90 are provided between the plurality of suction cups 60 in the same bending adsorption assembly. The pressing blocks 90 are elastically and floatingly connected to the bottom of the second floating seat 91. A second driving member 92 is provided on the transport body. The second driving member 92 is drivingly connected to the second floating seat 91 to make the second floating seat 91 move up and down. The second driving member 92 is fixed to the mounting plate 30 through a second connecting plate 93. The second driving member 92 is preferably a cylinder or a push rod motor.

[0032] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A busbar bending and conveying device, characterized in that: The invention comprises a transport body and at least one bending adsorption assembly arranged at the bottom of the transport body, wherein a receiving platform (40) corresponding to the number of the bending adsorption assembly is arranged below the bending adsorption assembly; each of the bending adsorption assemblies comprises a plurality of suction cups (60) arranged at linear intervals, at least one concave mold (70) arranged between the plurality of suction cups (60), and rollers (80) arranged on both sides of each concave mold (70) in a liftable manner; the adsorption end of the suction cup (60) is higher than the bottom end of the concave mold (70), and a liftable convex mold (50) is arranged on the receiving platform (40) in a one-to-one correspondence with the concave mold (70).

2. The busbar bending and conveying device according to claim 1, characterized in that: Each of the concave dies (70) is provided with two rollers (80) in correspondence, and the two rollers (80) on both sides of the concave dies (70) are arranged on a first mounting seat (81). A first driving member (82) is provided on the transport body in one-to-one correspondence with the first mounting seat (81), and the first driving member (82) is drivingly connected to the first mounting seat (81) so as to enable the first mounting seat (81) to move up and down.

3. The device for bending and transporting a busbar according to claim 2, characterized in that: The first mounting seat (81) comprises a first seat body (811) and a first floating seat (812), each of the rollers (80) is rotatably connected to one of the first floating seats (812), and the first floating seat (812) is elastically floatingly connected to the first mounting seat (81).

4. The device for bending and transporting a busbar according to claim 2, characterized in that: The roller (80) is a bearing rotatably connected to the bottom of the first mounting seat (81).

5. The busbar bending and conveying device according to claim 1, characterized in that: A plurality of liftable pressing blocks (90) are also provided between the plurality of suction cups (60) in the same bending adsorption assembly, and each of the pressing blocks (90) is located between two adjacent suction cups (60).

6. The device for bending and transporting a busbar according to claim 5, characterized in that: The pressing block (90) is elastically and floatingly connected to the bottom of the second floating seat (91); a second driving member (92) is provided on the transport body; the second driving member (92) is drivingly connected to the second floating seat (91) to enable the second floating seat (91) to move up and down.

7. The device for bending and transporting a busbar according to claim 1, characterized in that: The transport body comprises a horizontal moving mechanism (10), a lifting mechanism (20) and a mounting plate (30); the horizontal moving mechanism (10) is drivingly connected to the lifting mechanism (20) so that the lifting mechanism (20) moves horizontally; the lifting mechanism (20) is drivingly connected to the mounting plate (30) so that the mounting plate (30) moves up and down; and the bending adsorption assembly is mounted at the bottom of the mounting plate (30).

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