Bus bar welding module

Abstract

The utility model provides a bus bar welding module, and belongs to the field of solar cell processing. The automatic welding device comprises a moving guide rail, a tail driving mechanism, a tail welding mechanism, a middle driving mechanism, a middle welding mechanism, a head driving mechanism and a head welding mechanism, the tail driving mechanism drives the tail welding mechanism to move on the moving guide rail, and the middle driving mechanism drives the middle welding mechanism to move on the moving guide rail. The head driving mechanism drives the head welding mechanism to move on the moving guide rail, the tail welding mechanism, the middle welding mechanism and the head welding mechanism each comprise a vacuum suction nozzle, a welding heating device and a suction nozzle driving telescopic device, the welding heating devices are provided with groove holes, and the vacuum suction nozzles are arranged in the groove holes. The suction nozzle driving telescopic device drives the vacuum suction nozzle to stretch out and draw back in the groove hole. Compared with the prior art, when the bus bar is heated and welded, the suction nozzle can be lowered below a heating plane, heating damage to the suction nozzle is avoided, the service life of the suction nozzle is prolonged, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of solar cell processing, and specifically relates to a bus bar welding module. Background Technique

[0002] A crystalline solar panel is a device that converts solar energy into electrical energy using the photovoltaic effect. Crystalline solar panels, also known as photovoltaic solar panels, are usually composed of multiple photovoltaic cells. These photovoltaic cells absorb sunlight and convert it into direct current electrical energy. These panels can be installed on the roofs, ground, or other appropriate areas of buildings for power generation or power supply. As an important means of clean energy generation, photovoltaic solar panels are attracting more and more attention and wide application. Globally, governments and enterprises are investing in photovoltaic power generation projects to reduce dependence on traditional fossil fuels, reduce environmental pollution, and promote sustainable development.

[0003] During the processing of crystalline solar cells, it is usually necessary to align the bus bar and the battery string and then perform welding. In this process in automated production, usually after the battery string is typeset, the bus bar needs to be moved under the typeset battery string for heating and welding. That is, currently, the mechanism for welding the bus bar after the battery string is typeset usually needs to satisfy both the functions of moving and welding. Currently, the movement of the bus bar is usually carried out by using a vacuum suction nozzle for handling, and the heating of the bus bar is usually carried out by using a welding heating device for welding, that is, the bus bar is adsorbed by the vacuum suction nozzle and moved to the designated position, and then directly heated by the welding heating device to achieve welding. By adopting the above method, the vacuum suction nozzle needs to be placed above the welding heating device to meet the requirement that the bus bar is firmly adsorbed above the welding heating device, so that the bus bar can be directly heated and welded after moving to the designated position. The above method has the following defects: when the bus bar is placed above the vacuum suction nozzle and the vacuum suction nozzle is placed directly above the welding heating device for heating, the vacuum suction nozzle that does not need to be heated will be heated at the same time, which is easy to cause heating damage to the vacuum suction nozzle, greatly reducing the service life of the vacuum suction nozzle and having to frequently replace the vacuum suction nozzle, affecting production efficiency. In view of this, the utility model provides a bus bar welding module. Content of the Utility Model

[0004] To solve the above problems, the utility model provides a bus bar welding module, which can move the bus bar to the designated welding position, and at the same time, when the bus bar reaches the designated position for heating and welding, the suction nozzle can be lowered below the heating plane to avoid heating damage to the suction nozzle, extend the service life of the suction nozzle, and improve production efficiency.

[0005] The utility model is realized through the following technical solutions:

[0006] The bus bar welding module includes a moving guide rail, a tail drive mechanism, a tail welding mechanism, a middle drive mechanism, a middle welding mechanism, a head drive mechanism, and a head welding mechanism. The tail drive mechanism drives the tail welding mechanism to move on the moving guide rail. The middle drive mechanism drives the middle welding mechanism to move on the moving guide rail. The head drive mechanism drives the head welding mechanism to move on the moving guide rail. The tail welding mechanism, the middle welding mechanism, and the head welding mechanism all include a vacuum suction nozzle, a welding heating device, and a suction nozzle drive telescopic device. A slot hole is provided on the welding heating device, and the vacuum suction nozzle is arranged in the slot hole. The suction nozzle drive telescopic device drives the vacuum suction nozzle to stretch in the slot hole.

[0007] As a preferred technical solution, an upper limit block for limiting the extending position of the vacuum suction nozzle is further arranged in the tail welding mechanism, the middle welding mechanism, and the head welding mechanism.

[0008] As a preferred technical solution, the suction nozzle drive telescopic device includes a camshaft and a driver. The driver is in transmission connection with the camshaft, and the camshaft abuts against the vacuum suction nozzle.

[0009] As a preferred technical solution, the driver is a cylinder and a commutation mechanism, and the cylinder is in transmission connection with the camshaft through the commutation mechanism.

[0010] As a preferred technical solution, the driver is a stepping motor, and the stepping motor is in transmission connection with the camshaft.

[0011] As a preferred technical solution, the tail drive mechanism includes tail drive motors, a tail drive belt, and a tail slider arranged on both sides of the moving guide rail. The tail drive motors drive the tail slider to move on the moving guide rail through the tail drive belt, and the tail welding mechanism is fixed on the tail slider.

[0012] As a preferred technical solution, the middle drive mechanism includes middle drive motors, a middle drive belt, and a middle slider arranged on both sides of the moving guide rail. The middle drive motors drive the middle slider to move on the moving guide rail through the middle drive belt, and the middle welding mechanism is fixed on the middle slider.

[0013] As a preferred technical solution, the head drive mechanism includes head drive motors, a head drive belt, and a head slider arranged on both sides of the moving guide rail. The head drive motors drive the head slider to move on the moving guide rail through the head drive belt, and the head welding mechanism is fixed on the head slider.

[0014] Beneficial effects:

[0015] The utility model drives the head welding mechanism, the middle welding mechanism and the tail welding mechanism to move on the moving guide rail through three groups of driving mechanisms at the head, middle and tail, so as to align the bus bars at the head, the middle and the tail with the head, middle and tail of the battery string respectively. During the moving process, the bus bar is adsorbed by the extended vacuum suction nozzle. At this time, the vacuum suction nozzle is placed on the heating plane of the welding heating device. When heating is carried out at the designated position, the vacuum suction nozzle is driven by the telescopic device of the suction nozzle to contract into the slot hole, so that the vacuum suction nozzle is lowered below the heating plane, and then the welding heating device is started to heat and weld the bus bar and the battery string. In this way, when the bus bar reaches the designated position for heating and welding, the suction nozzle can be lowered below the heating plane, avoiding heating damage to the suction nozzle, prolonging the service life of the suction nozzle and improving the production efficiency. Description of the Drawings

[0016] Figure 1 It is a structural diagram of the bus bar welding module;

[0017] Figure 2 It is a structural diagram of the bus bar welding module;

[0018] Figure 3 It is Figure 2 An enlarged structural view of the tail welding mechanism part at position A in

[0019] Reference Signs in the Drawings:

[0020] 1. Moving guide rail; 2. Tail welding mechanism; 3. Middle welding mechanism; 4. Head welding mechanism; 5. Tail driving mechanism; 6. Middle driving mechanism; 7. Head driving mechanism; 8. Vacuum suction nozzle; 9. Welding heating device; 10. Slot hole; 11. Upper limit block; 12. Camshaft; 13. Reversing mechanism; 14. Cylinder; 21. Tail driving motor; 22. Tail driving belt; 23. Tail slider; 31. Middle driving motor; 32. Middle driving belt; 33. Middle slider; 41. Head driving motor; 42. Head driving belt; 43. Head slider. Detailed Embodiment

[0021] To further disclose the technical solution of the utility model, the bus bar welding module will be described clearly and completely below with reference to the drawings.

[0022] It should be noted that the terms such as "inside", "middle" and "one" cited in this specification are only for the convenience of narration and are not used to limit the scope of implementation of the utility model. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of implementation of the utility model. This is stated first for clarification.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, 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 should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0024] Embodiment:

[0025] Please refer to Figures 1 to 3 , the present utility model provides a bus bar welding module, which includes a moving guide rail 1, a tail driving mechanism 5, a tail welding mechanism 2, a middle driving mechanism 6, a middle welding mechanism 3, a head driving mechanism 7, and a head welding mechanism 4. The tail driving mechanism 5 drives the tail welding mechanism 2 to move on the moving guide rail 1, the middle driving mechanism 6 drives the middle welding mechanism 3 to move on the moving guide rail 1, the head driving mechanism 7 drives the head welding mechanism 4 to move on the moving guide rail 1. The tail welding mechanism 2, the middle welding mechanism 3, and the head welding mechanism 4 all include a vacuum suction nozzle 8, a welding heating device 9, and a suction nozzle driving and telescoping device. A slot hole 10 is provided on the welding heating device 9, the vacuum suction nozzle 8 is arranged in the slot hole 10, and the suction nozzle driving and telescoping device drives the vacuum suction nozzle 8 to telescope in the slot hole 10.

[0026] During operation, the head welding mechanism 4, the middle welding mechanism 3 and the tail welding mechanism 2 are driven by the head driving mechanism 7, the middle driving mechanism 6 and the tail driving mechanism to move on the movable guide rail 1 respectively to align the head bus bar, the middle bus bar and the tail bus bar with the head, the middle and the tail of the battery string respectively. During the movement process, the bus bar is adsorbed by the extended vacuum suction nozzle 8. At this time, the vacuum suction nozzle 8 is placed on the heating plane of the welding heating device 9. When it reaches the designated position for heating, the suction nozzle drives the telescopic device to drive the vacuum suction nozzle 8 to shrink into the slot 10, so that the vacuum suction nozzle 8 is lowered below the heating plane, and then the welding heating device 9 is started to heat and weld the bus bar and the battery string, so that the suction nozzle can be lowered below the heating plane when the bus bar reaches the designated position for heating and welding, thereby avoiding heating damage to the suction nozzle.

[0027] Specifically, the tail welding mechanism 2, the middle welding mechanism 3 and the head welding mechanism 4 are also provided with an upper limiting block for limiting the extended position of the vacuum suction nozzle 8. Through the action of the upper limiting block 11, the suction nozzle driving telescopic device is limited at the position of driving the vacuum suction nozzle 8 to extend in the slot 10, so that the vacuum suction nozzle 8 is in the same plane after being extended, which is convenient for the adsorption of the bus bar.

[0028] For details, please refer to the attached Figure 2 and attached Figure 3 The nozzle driving and retracting device includes a camshaft 12 and a driver, the driver is connected to the camshaft 12 in a transmission manner, the camshaft 12 abuts against the vacuum nozzle 8, and the driver drives the camshaft 12 to realize the retraction of the vacuum nozzle 8. When the driver drives the camshaft 12 to rotate to the protrusion, the vacuum nozzle 8 is pushed out of the slot 10 by the protrusion of the camshaft 12, and the upper limit block 11 is cooperated to ensure that the vacuum nozzle 8 will not extend to different lengths due to inertia. After the vacuum nozzle 8 is extended, it is placed on the heating plane of the welding heating device 9, which is convenient for adsorbing the bus bar for transfer. When it reaches the specified position, the driver drives the camshaft 12 to rotate to the non-protruding position, and the vacuum nozzle 8 shrinks downward in the slot 10 to below the heating plane, and does not directly contact the heating plane. Then the welding heating device 9 is started for heating and welding, so as to protect the vacuum nozzle 8 and avoid the vacuum nozzle 8 from directly contacting the heating plane for heating, and will not cause heating damage to the vacuum nozzle 8.

[0029] In this embodiment, please refer to the attached Figure 3 The driver is a cylinder 14 and a reversing mechanism 13. The cylinder 14 is drivingly connected to the camshaft 12 via the reversing mechanism 13. The reversing cylinder 14 can reverse the forward and backward movement of the cylinder 14 into rotation.

[0030] It should be noted that in other embodiments, the driver can also be a stepper motor, which is drivingly connected to the camshaft 12. The stepper motor drives the camshaft 12 to rotate to realize the telescoping of the vacuum nozzle 8.

[0031] In this embodiment, please refer to the attached Figure 2 , the tail drive mechanism 5 includes tail drive motors 21, tail drive belts 22 and tail sliders 23 arranged on both sides of the moving guide rail 1. The tail drive motors 21 drive the tail sliders 23 to move on the moving guide rail 1 through the tail drive belts 22, and the tail welding mechanism 2 is fixed to the tail sliders 23.

[0032] In this embodiment, the middle drive mechanism 6 includes middle drive motors 31, middle drive belts 32 and middle sliders 33 arranged on both sides of the moving guide rail 1. The middle drive motors 31 drive the middle sliders 33 to move on the moving guide rail 1 through the middle drive belts 32, and the middle welding mechanism 3 is fixed to the middle sliders 33.

[0033] In this embodiment, the head drive mechanism 7 includes head drive motors 41, head drive belts 42 and head sliders 43 arranged on both sides of the moving guide rail 1. The head drive motors 41 drive the head sliders 43 to move on the moving guide rail 1 through the head drive belts 42, and the head welding mechanism 4 is fixed to the head sliders 43.

[0034] It should be noted that the above head drive mechanism 7, middle drive mechanism 6 and tail drive mechanism 5 all drive the sliders to move on the moving guide rail 1 by driving the motors to drive the belts. Furthermore, they drive the head welding mechanism 4, middle welding mechanism 3 and tail welding mechanism 2 to move on the moving guide rail 1. The head drive mechanism 7 provides power by two head drive motors 41 on the moving guide rails 1 on both sides. The middle drive mechanism 6 and the tail drive mechanism 5 are the same, and a total of six drive motors provide power.

[0035] Through the above structure, the present utility model can satisfy the requirement that the busbar moves to the designated welding position. At the same time, when the busbar reaches the designated position for heating and welding, the nozzle can be lowered below the heating plane, avoiding heating damage to the nozzle, extending the service life of the nozzle, and improving production efficiency.

[0036] The present utility model is not limited to the above embodiments. If various modifications or deformations of the present utility model do not depart from the spirit and scope of the present utility model, and provided that these modifications and deformations fall within the scope of the claims of the present utility model and equivalent technologies, the present utility model also includes these deformations and modifications.

Claims

1. Bus bar welding module, characterized in that: It includes a moving guide rail, a tail driving mechanism, a tail welding mechanism, a middle driving mechanism, a middle welding mechanism, a head driving mechanism and a head welding mechanism. The tail driving mechanism drives the tail welding mechanism to move on the moving guide rail. The middle driving mechanism drives the middle welding mechanism to move on the moving guide rail. The head driving mechanism drives the head welding mechanism to move on the moving guide rail. The tail welding mechanism, the middle welding mechanism and the head welding mechanism all include a vacuum suction nozzle, a welding heating device and a nozzle driving and telescoping device. A slot hole is provided on the welding heating device. The vacuum suction nozzle is arranged in the slot hole. The nozzle driving and telescoping device drives the vacuum suction nozzle to telescope in the slot hole.

2. The bus bar welding module according to claim 1, characterized in that: An upper limit block for limiting the extended position of the vacuum suction nozzle is further arranged in the tail welding mechanism, the middle welding mechanism and the head welding mechanism.

3. The bus bar welding module according to claim 1, characterized in that: The nozzle driving and telescoping device includes a camshaft and a driver. The driver is in transmission connection with the camshaft. The camshaft abuts against the vacuum suction nozzle.

4. The bus bar welding module according to claim 3, wherein: The driver is a cylinder and a commutation mechanism. The cylinder is in transmission connection with the camshaft through the commutation mechanism.

5. The bus bar welding module according to claim 3, wherein: The driver is a stepping motor. The stepping motor is in transmission connection with the camshaft.

6. The bus bar welding module according to claim 1, wherein: The tail driving mechanism includes tail driving motors arranged on both sides of the moving guide rail, a tail driving belt and a tail slider. The tail driving motors drive the tail slider to move on the moving guide rail through the tail driving belt. The tail welding mechanism is fixed on the tail slider.

7. The bus bar welding module according to claim 1, wherein: The middle driving mechanism includes middle driving motors arranged on both sides of the moving guide rail, a middle driving belt and a middle slider. The middle driving motors drive the middle slider to move on the moving guide rail through the middle driving belt. The middle welding mechanism is fixed on the middle slider.

8. The bus bar welding module according to claim 1, wherein: The head driving mechanism includes head driving motors arranged on both sides of the moving guide rail, a head driving belt and a head slider. The head driving motors drive the head slider to move on the moving guide rail through the head driving belt. The head welding mechanism is fixed on the head slider.

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