Welding spot welding device for photovoltaic inverter

Abstract

The utility model relates to the field of photovoltaic inverter processing, and discloses a photovoltaic inverter welding spot welding device which comprises a machine table, a telescopic rod is arranged at the top end of the machine table, the telescopic end of the telescopic rod is fixedly connected with a supporting plate, a connecting frame is arranged on the side wall of the machine table, a welding gun is arranged in the middle of the connecting frame, and the welding gun is fixedly connected with the supporting plate. The left end of the supporting plate is fixedly connected with a sleeve, and the inner wall of the sleeve penetrates through and is in piston connection with a movable rod. According to the welding device, through cooperative operation of the telescopic rod, the air bag, the extrusion plate and other components, self-adaptive fixing of weldments of different shapes and sizes is achieved, after the weldments are placed, stable pressure is applied to the weldments through the contact plate by means of a series of mechanical transmission and air pressure changes, the stability of the positions of the weldments in the welding process is effectively guaranteed, and the welding quality is improved. Good conditions are created for accurate welding, the welding quality and efficiency are improved, and the welding requirements of photovoltaic inverter assemblies of various specifications can be met.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic inverter processing, and in particular to a photovoltaic inverter solder joint welding device. Background Technology

[0002] With the booming development of the clean energy sector, photovoltaic inverters, as key equipment in photovoltaic power generation systems, are experiencing increasing market demand. In the manufacturing process of photovoltaic inverters, the welding process is crucial because it is necessary to connect numerous electronic components, circuit boards, and various components through welding to ensure that the equipment operates normally and has good electrical performance.

[0003] The existing technology has the following drawbacks: traditional photovoltaic inverter solder joint welding devices often have many shortcomings in fixing the weldment. Most of them are designed for weldment of specific specifications and lack flexibility. When faced with photovoltaic inverter components of different shapes and sizes, it is difficult to fix the weldment accurately and stably, which can easily lead to the displacement of the weldment position during the welding process, thereby affecting the accuracy of the solder joint, reducing the welding quality, and even causing welding defects. It cannot well meet the diverse production needs. Therefore, a photovoltaic inverter solder joint welding device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a photovoltaic inverter solder joint welding device, which aims to improve the problem that the existing fixing device cannot adapt to photovoltaic inverter materials of different shapes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a photovoltaic inverter welding device, comprising a machine base, a telescopic rod at the top of the machine base, a support plate fixedly connected to the telescopic end of the telescopic rod, a connecting frame on the side wall of the machine base, a welding gun in the middle of the connecting frame, a sleeve fixedly connected to the left end of the support plate, a movable rod through the inner wall of the sleeve and piston-connected thereto, a contact plate fixedly connected to the left end of the movable rod, a hose fixedly connected to the right end of the sleeve, an airbag fixedly connected to the right end of the hose, a fixing plate fixedly connected to the bottom end of the airbag, a squeezing mechanism on the inner wall of the support plate, and a smoke removal assembly at the top of the connecting frame;

[0006] The extrusion mechanism includes a threaded rod that passes through and is threadedly connected to the inner wall of the support plate, and the bottom end of the threaded rod is rotatably connected to the extrusion plate.

[0007] As a further description of the above technical solution:

[0008] The smoke removal assembly includes a smoke removal box, which is fixedly connected to the top of the connecting frame. A stop block is elastically connected to the inner wall of the left end of the smoke removal box through a return spring. A filter screen is inserted into the inner wall of the smoke removal box. A dust collection hood is fixedly connected to the top of the smoke removal box through a connecting pipe.

[0009] As a further description of the above technical solution:

[0010] The inner wall of the left end of the smoke removal box is fixedly connected to one end of the return spring, and the other end of the return spring is fixedly connected to the left end of the stop block.

[0011] As a further description of the above technical solution:

[0012] The stop block is slidably connected to the top of the smoke removal box.

[0013] As a further description of the above technical solution:

[0014] The stop block is inserted into the upper end of the filter screen.

[0015] As a further description of the above technical solution:

[0016] The dust collection hood is fixedly connected to the outer wall of the welding gun.

[0017] As a further description of the above technical solution:

[0018] The extrusion plate is slidably connected to the right end of the support plate, the support plate is slidably connected to the top of the machine base, and the fixing plate is fixedly connected to the right end of the support plate.

[0019] As a further description of the above technical solution:

[0020] The bottom end of the extrusion plate contacts the top end of the airbag, and the hose is fixedly connected to the inner wall of the support plate.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the coordinated operation of components such as telescopic rods, airbags, and extrusion plates enables adaptive fixing of weldments of different shapes and sizes. After the weldment is placed, a series of mechanical transmissions and air pressure changes enable the contact plate to apply stable pressure to the weldment, effectively ensuring the stability of the weldment position during welding, creating favorable conditions for precise welding, improving welding quality and efficiency, and adapting to the welding needs of photovoltaic inverter modules of various specifications.

[0023] 2. In this utility model, the dust collection hood, connecting pipe, and fume extraction box equipped with a filter screen can effectively collect and filter the welding fumes, adsorbing particulate matter and harmful gases, thus purifying the welding environment. Simultaneously, its cleverly designed stop and return spring structure makes filter screen replacement extremely convenient, requiring only simple sliding and insertion / removal actions. This ensures the fume extraction function remains continuous and stable, facilitating the maintenance of a good working environment and the normal operation of the equipment. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the overall machine base of a photovoltaic inverter solder joint welding device proposed in this utility model;

[0025] Figure 2 This is a cross-sectional schematic diagram of the support plate of a photovoltaic inverter solder joint welding device proposed in this utility model;

[0026] Figure 3 This is a schematic diagram showing the reset spring, stop block, and filter screen of a photovoltaic inverter solder joint welding device proposed in this utility model.

[0027] Legend:

[0028] 1. Machine base; 2. Telescopic rod; 3. Support plate; 4. Connecting frame; 5. Welding gun; 6. Sleeve; 7. Movable rod; 8. Contact plate; 9. Hose; 10. Fixing plate; 11. Airbag; 12. Extrusion plate; 13. Threaded rod; 14. Dust hood; 15. Connecting pipe; 16. Smoke removal box; 17. Return spring; 18. Stop block; 19. Filter screen. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figures 1-3This utility model provides an embodiment of a photovoltaic inverter welding device, including a machine base 1. The entire device is mainly used for welding photovoltaic inverters. A telescopic rod 2 is provided at the top of the machine base 1. The telescopic rod 2 is an existing electric push rod that can move a support plate 3, allowing the contact plate 8 on the support plate 3 to fix the photovoltaic inverter material. The telescopic end of the telescopic rod 2 is fixedly connected to the support plate 3. A connecting frame 4 is provided on the side wall of the machine base 1. A welding gun 5 is provided in the middle of the connecting frame 4. The welding gun 5 converts energy in the form of electrical energy, chemical energy, etc., into heat energy, causing the welding materials such as welding wire and welding rod to partially melt the workpiece, thereby realizing the connection between the workpieces and forming a strong connection. The welding points or welds are existing technologies and will not be described in detail. A sleeve 6 is fixedly connected to the left end of the support plate 3. The inside of the sleeve 6 is hollow and contains air. The inner wall of the sleeve 6 is penetrated and connected to a piston rod 7. A contact plate 8 is fixedly connected to the left end of the movable rod 7. The contact surface of the contact plate 8 with the photovoltaic inverter material is made of rubber material, which will not cause damage when in contact with it. A hose 9 is fixedly connected to the right end of the sleeve 6. An airbag 11 is fixedly connected to the right end of the hose 9. A fixing plate 10 is fixedly connected to the bottom end of the airbag 11. The fixing plate 10 mainly connects and supports the airbag 11. A compression mechanism is provided on the inner wall of the support plate 3. A smoke removal component is provided at the top of the connecting frame 4.

[0031] The extrusion mechanism includes a threaded rod 13, which is threaded through and connected to the inner wall of the support plate 3. The support plate 3 has a pattern corresponding to the threaded rod 13, and the bottom end of the threaded rod 13 is rotatably connected to the extrusion plate 12.

[0032] Reference Figures 1-3The smoke removal assembly includes a smoke removal box 16, which is a filtration device that treats the absorbed fumes before discharging them. The smoke removal box 16 is fixedly connected to the top of the connecting frame 4. A stop 18 is elastically connected to the inner wall of the left end of the smoke removal box 16 via a return spring 17. A filter screen 19, made of activated carbon fiber, is inserted into the inner wall of the smoke removal box 16. This filter screen can not only adsorb particulate matter in the welding fumes but also adsorb and remove harmful gases such as carbon monoxide, nitrogen oxides, and volatile organic compounds, achieving a more comprehensive purification effect on the welding fumes. A dust collection hood 14 is fixedly connected to the top of the smoke removal box 16 via a connecting pipe 15. The inner wall of the left end of the smoke removal box 16 is connected to one end of the return spring 17. When the stop block 18 moves to the left, it compresses the return spring 17. When resetting, the spring force of the return spring 17 carries the stop block 18 back to its original position. The other end of the return spring 17 is fixedly connected to the left end of the stop block 18. The stop block 18 is slidably connected to the top of the smoke removal box 16. There is a guide rod at the sliding point between the stop block 18 and the smoke removal box 16, which can guide the stop block 18 and prevent the return spring 17 from undergoing large compression deformation. The stop block 18 is inserted into the upper end of the filter screen 19. The upper end of the filter screen 19 is designed as a handle. The stop block 18 inserted into the handle can cover the filter screen 19 and limit the position of the filter screen 19. The dust collection cover 14 is fixedly connected to the outer wall of the welding gun 5.

[0033] Reference Figures 1-3 The extrusion plate 12 is slidably connected to the right end of the support plate 3. The right end of the support plate 3 is provided with a corresponding groove for the extrusion plate 12, which allows the extrusion plate 12 to move along the groove. The support plate 3 is slidably connected to the top of the machine base 1. The fixing plate 10 is fixedly connected to the right end of the support plate 3. The bottom end of the extrusion plate 12 is in contact with the top end of the airbag 11. The hose 9 is fixedly connected to the inner wall of the support plate 3.

[0034] Working principle: First, place the photovoltaic inverter component to be welded stably in the working area of ​​the machine 1, ensuring that the welding part is aligned with the bottom of the welding gun 5. By activating the telescopic rod 2, the telescopic end of the telescopic rod 2 drives the support plate 3 to move towards the workpiece. As the support plate 3 moves, the contact plate 8 first contacts the surface of the photovoltaic inverter material. The movable rod 7 begins piston movement inside the sleeve 6, compressing the air inside the sleeve 6. The air inside the sleeve 6 is delivered to the airbag 11 through the hose 9, causing the airbag 11 to inflate. Then, the threaded rod 13 is rotated to move the threaded rod 13 downward, causing the extrusion plate 12 to slide downward, further compressing the airbag 11 and increasing the pressure inside the airbag 11. The pressure is fed back to the sleeve 6 through the hose 9, so that the contact plate 8 applies more stable pressure to the workpiece, achieving adaptive fixing of workpieces of different shapes and sizes.

[0035] During welding, the generated fumes are drawn into the fume extraction chamber 16 through the dust extraction hood 14 and the connecting pipe 15. The filter screen 19 filters the fumes, adsorbing particulate matter and harmful gases. When the filter screen 19 needs to be replaced, slide the stop block 18 to the left to compress the return spring 17, causing the stop block 18 to disengage from the handle of the filter screen 19. Pull the old filter screen 19 upward and insert the new filter screen 19. Release the stop block 18 so that the spring force of the return spring 17 resets the stop block 18. Reinsert the filter screen 19 into the handle to complete the replacement.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A photovoltaic inverter solder joint welding device, comprising a machine base (1), characterized in that: The top of the machine base (1) is provided with a telescopic rod (2), and the telescopic end of the telescopic rod (2) is fixedly connected to a support plate (3). The side wall of the machine base (1) is provided with a connecting frame (4), and the middle part of the connecting frame (4) is provided with a welding gun (5). The left end of the support plate (3) is fixedly connected with a sleeve (6), and the inner wall of the sleeve (6) is penetrated and connected to a movable rod (7). The left end of the movable rod (7) is fixedly connected with a contact plate (8), and the right end of the sleeve (6) is fixedly connected with a hose (9). The right end of the hose (9) is fixedly connected with an airbag (11), and the bottom end of the airbag (11) is fixedly connected with a fixing plate (10). The inner wall of the support plate (3) is provided with a squeezing mechanism, and the top of the connecting frame (4) is provided with a smoke removal component. The extrusion mechanism includes a threaded rod (13), which is threaded through and threaded to the inner wall of the support plate (3), and the bottom end of the threaded rod (13) is rotatably connected to an extrusion plate (12).

2. The photovoltaic inverter solder joint welding device according to claim 1, characterized in that: The smoke removal assembly includes a smoke removal box (16), which is fixedly connected to the top of the connecting frame (4). A stop block (18) is elastically connected to the inner wall of the left end of the smoke removal box (16) through a return spring (17). A filter screen (19) is inserted into the inner wall of the smoke removal box (16). A dust collection hood (14) is fixedly connected to the top of the smoke removal box (16) through a connecting pipe (15).

3. The photovoltaic inverter solder joint welding device according to claim 2, characterized in that: The inner wall of the left end of the smoke removal box (16) is fixedly connected to one end of the return spring (17), and the other end of the return spring (17) is fixedly connected to the left end of the stop block (18).

4. The photovoltaic inverter solder joint welding device according to claim 2, characterized in that: The stop (18) is slidably connected to the top of the smoke removal box (16).

5. The photovoltaic inverter solder joint welding device according to claim 2, characterized in that: The stop (18) is inserted into the upper end of the filter screen (19).

6. The photovoltaic inverter solder joint welding device according to claim 2, characterized in that: The dust collection hood (14) is fixedly connected to the outer wall of the welding gun (5).

7. The photovoltaic inverter solder joint welding device according to claim 1, characterized in that: The extrusion plate (12) is slidably connected to the right end of the support plate (3), the support plate (3) is slidably connected to the top of the machine base (1), and the fixing plate (10) is fixedly connected to the right end of the support plate (3).

8. The photovoltaic inverter solder joint welding device according to claim 1, characterized in that: The bottom end of the extrusion plate (12) is in contact with the top end of the airbag (11), and the hose (9) is fixedly connected to the inner wall of the support plate (3).

Images