Plasma processing equipment for photovoltaic junction box shell

Abstract

The utility model relates to plasma treatment equipment for a photovoltaic junction box shell. The plasma processing device comprises a first belt conveying table, a first plasma processing device arranged on the upper side of the first belt conveying table, and a second belt conveying table located on the outlet side of the first belt conveying table. The second plasma treatment device is arranged on the upper side of the second belt conveying table; the overturning pipe body is arranged between the first belt conveying table and the second belt conveying table; the height of the first belt conveying table is greater than that of the second belt conveying table; the overturning pipe body is provided with an overturning channel for a photovoltaic junction box shell to pass through, and the overturning angle of the overturning channel is 180 degrees. According to the invention, the efficiency of plasma surface treatment on the photovoltaic junction box shell can be improved.

Description

Technical Field

[0001] This application relates to the field of plasma processing technology, and in particular to a plasma processing device for a photovoltaic junction box housing. Background Technology

[0002] As a crucial component protecting photovoltaic modules, the photovoltaic junction box housing primarily connects the solar panels to external circuits while providing protection and encapsulation. With the rapid development of the photovoltaic industry, the performance requirements for photovoltaic junction box housings are becoming increasingly stringent. Therefore, plasma surface treatment is necessary to improve the surface adhesion of the photovoltaic junction box housing.

[0003] Reference Figure 1 A photovoltaic junction box housing includes a housing body 1, which is generally rectangular in shape. The housing body has a cavity with an opening at the top; the side of the cavity opening facing upwards is defined as the upper side, and the side facing away from the cavity opening is defined as the lower side. The overall height of the photovoltaic junction box housing is less than its overall width.

[0004] In existing technologies, photovoltaic junction box housings are typically placed onto a conveyor belt manually, with the length of the housing parallel to the conveyor belt's direction. The conveyor belt transports the housing to a plasma treatment machine for plasma surface treatment of the upper / lower surfaces. Then, the housing is manually flipped, and the conveyor belt transports it to another plasma treatment machine for plasma surface treatment of the lower / upper surfaces.

[0005] The inventors believe that the above-mentioned operation process is too cumbersome, resulting in low efficiency in plasma surface treatment of the photovoltaic junction box housing. Utility Model Content

[0006] In order to improve the efficiency of plasma surface treatment of photovoltaic junction box housings, this application provides a plasma treatment device for photovoltaic junction box housings.

[0007] The plasma treatment equipment for photovoltaic junction box housing provided in this application adopts the following technical solution:

[0008] A plasma treatment device for photovoltaic junction box housings includes a first belt conveyor platform, a first plasma treatment device mounted on the upper side of the first belt conveyor platform, a second belt conveyor platform located at the outlet side of the first belt conveyor platform, a second plasma treatment device mounted on the upper side of the second belt conveyor platform, and a flipping tube disposed between the first belt conveyor platform and the second belt conveyor platform; the height of the first belt conveyor platform is greater than the height of the second belt conveyor platform; the flipping tube has a flipping channel for the photovoltaic junction box housing to pass through, and the flipping angle of the flipping channel is 180 degrees.

[0009] By adopting the above technical solution, when the photovoltaic junction box housing enters from the outlet side of the first conveyor, the first conveyor transports the photovoltaic junction box housing to the lower side of the first plasma treatment device. The first plasma treatment device performs plasma surface treatment on the upper side of the photovoltaic junction box housing. Subsequently, the photovoltaic junction box housing is transported to the flipping tube and enters from the inlet of the flipping tube. Since the flipping tube has a flipping channel with a flipping angle of 180 degrees, the photovoltaic junction box housing flips within the flipping channel and exits from the outlet of the flipping tube. Then, the second conveyor transports the flipped photovoltaic junction box housing to the lower side of the second plasma treatment device for plasma surface treatment on the lower side of the photovoltaic junction box housing. This application eliminates the need for manual flipping of the photovoltaic junction box housing, resulting in a high degree of automation and thus improving the efficiency of plasma surface treatment of the photovoltaic junction box housing.

[0010] Optionally, the first belt conveyor is provided with first limiting plates on both sides of the conveyor belt, and a first transmission gap is formed between the two first limiting plates, allowing only one photovoltaic junction box housing to pass through; the second belt conveyor is provided with second limiting plates on both sides of the conveyor belt, and a second transmission gap is formed between the two second limiting plates, allowing only one photovoltaic junction box housing to pass through.

[0011] By adopting the above technical solution, and by setting first limiting crossbars on both sides of the conveyor belt on the first belt conveyor, the photovoltaic junction box housing can be sequentially transported along the first transmission gap, resulting in ideal stability of the photovoltaic junction box housing during transport and allowing it to enter better from the inlet of the flipping tube. Similarly, by setting second limiting crossbars on both sides of the conveyor belt on the second belt conveyor, the photovoltaic junction box housing can be sequentially transported along the second transmission gap, resulting in ideal stability of the photovoltaic junction box housing during transport.

[0012] Optionally, the flip tube body is provided with an outwardly expanding inlet on the inlet side for input to the photovoltaic junction box housing, and the opening of the inlet is directly opposite the outlet of the first transmission gap.

[0013] By adopting the above technical solution, and by setting an outwardly expanding inlet on the inlet side of the flip tube, the photovoltaic junction box housing can more easily enter the flip channel from the inlet.

[0014] Optionally, the flip tube body is provided with an outlet portion directly opposite the inlet of the second transmission gap, and the outlet portion has vertically arranged outlet plates on both sides for limiting the lateral deviation of the photovoltaic junction box housing.

[0015] By adopting the above technical solution, and by setting an outlet section on the outlet side of the flip tube and setting outlet plates on both sides of the outlet section, it helps to further reduce the probability of lateral deviation when the photovoltaic junction box housing comes into contact with the conveyor belt of the second belt conveyor table after being output from the flip tube.

[0016] Optionally, it also includes a feeding mechanism located on the inlet side of the first belt conveyor; the feeding mechanism includes a feeding frame, a collection funnel mounted on the feeding frame, a lifting device for lifting the photovoltaic junction box housing in the collection funnel to a higher position, a discharge ramp located at the outlet of the lifting device and connected to the collection funnel, and a feeding device for receiving the photovoltaic junction box housing output from the lifting device; the discharge ramp is provided with a first baffle on the side away from the lifting device, and the discharge ramp is provided with a conveying trough on the inner side near the first baffle for only one photovoltaic junction box housing to pass through, and the outlet of the conveying trough is directly opposite the feeding device.

[0017] By adopting the above technical solution, and by setting a feeding mechanism on the inlet side of the first belt conveyor, the lifting device can lift the photovoltaic junction box shells in the collection hopper to a high position, and then drop them onto the discharge ramp. A portion of the photovoltaic junction box shells can fall sequentially along the conveyor trough onto the feeding device, which can then sequentially transport the photovoltaic junction box shells to the first belt conveyor. The remaining portion of the photovoltaic junction box shells falls back into the collection hopper via the discharge ramp. This allows for manual emptying of only a few photovoltaic junction box shells into the collection hopper, further improving the automation rate of the photovoltaic junction box shell plasma treatment equipment.

[0018] Optionally, the feeding device includes a third belt conveyor installed on the feeding frame, a first limiting partition installed on the feeding frame and away from the collecting hopper, and a limiting paddle installed on the first limiting partition and inclined toward the collecting hopper; the distance between the bottom surface of the limiting paddle and the conveyor belt of the third belt conveyor is less than the width of the photovoltaic junction box housing and greater than the height of the photovoltaic junction box housing.

[0019] By adopting the above technical solution, the specific structure of the feeding device is disclosed. When the photovoltaic junction box housing is conveyed from the conveying trough to the conveyor belt of the third belt conveyor table, it is easy for two photovoltaic junction box housings to be stacked together or for the photovoltaic junction box housings to be arranged vertically. By installing a limiting plate facing the collection funnel on the first limiting partition and limiting the distance between the limiting plate and the conveyor belt of the third belt conveyor table, it is possible to push down the upper photovoltaic junction box housing of the two stacked photovoltaic junction box housings into the collection funnel, and it is also possible to push down the vertically arranged photovoltaic junction box housing into the collection funnel.

[0020] Optionally, the third belt conveyor is provided with a second limiting partition at the outlet end of the conveyor belt and on the side near the collection hopper; a third transmission gap is formed between the first limiting partition and the second limiting partition, allowing only one photovoltaic junction box housing to pass through.

[0021] By adopting the above technical solution, the setting of the second limiting partition allows the photovoltaic junction box housing to be transported sequentially along the third transmission gap to the first belt conveyor, and it is not easy for it to deviate to the side when in contact with the conveyor belt of the first belt conveyor, which helps to make the photovoltaic junction box housing ideal during transportation.

[0022] Optionally, a limit bar is provided on the upper side of the third transmission gap.

[0023] By adopting the above technical solution and setting a limiting strip on the upper side of the third transmission gap, it helps to reduce the probability of the photovoltaic junction box housing in a vertical state entering the third transmission gap.

[0024] Optionally, a first light-shielding plate is arranged circumferentially on the outer side of the first plasma treatment device; a second light-shielding plate is arranged circumferentially on the outer side of the second plasma treatment device.

[0025] By adopting the above technical solution, the setting of the first light shield can reduce the impact of the light generated by the first plasma processing device on the staff during operation; the setting of the second light shield can reduce the impact of the light generated by the second plasma processing device on the staff during operation.

[0026] Optionally, it also includes a collection basket arranged on the outlet side of the second belt conveyor for receiving the photovoltaic junction box housing.

[0027] By adopting the above technical solution, the collection basket can receive the photovoltaic junction box housing conveyed from the second belt conveyor.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. A plasma treatment device for photovoltaic junction box housing, wherein a flipping tube is set between a first platform conveyor and a second belt conveyor, allowing the photovoltaic junction box housing to enter from the end of the flipping tube closest to the first platform conveyor, flip 180 degrees after passing through the flipping tube, and exit from the end of the flipping tube closest to the second platform conveyor, thereby realizing the flipping of the photovoltaic junction box housing without the need for manual flipping of the photovoltaic junction box housing;

[0030] 2. By setting first limiting plates on both sides of the conveyor belt of the first belt conveyor table, the photovoltaic junction box housing can enter the flipping tube body sequentially along the first transmission gap;

[0031] 3. By setting up a feeding mechanism on the inlet side of the first belt conveyor, the photovoltaic junction box housing located in the collection hopper is lifted to a high position by the lifting device and then falls down. After falling through the discharge inclined plate to the conveying device, it is transported to the first belt conveyor. There is no need for manual placement of the photovoltaic junction box housing onto the first belt conveyor, which helps to make the photovoltaic junction box housing plasma treatment equipment more automated. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the photovoltaic junction box housing in an embodiment of this application.

[0033] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application.

[0034] Figure 3 This is a schematic diagram of the structure of the inverted tube in an embodiment of this application.

[0035] Figure 4 This is a schematic diagram of the structure of the first plasma processing device in the embodiments of this application.

[0036] Figure 5 This is a schematic diagram of the structure of the second plasma processing device in the embodiments of this application.

[0037] Figure 6 yes Figure 3 A magnified view of a portion of point A in the middle.

[0038] Figure 7 yes Figure 3 A magnified view of a section at point B in the middle.

[0039] Figure 8 This is a schematic diagram of the feeding mechanism in an embodiment of this application.

[0040] Explanation of reference numerals in the attached drawings: 1. Main body of the casing; 2. First belt conveyor platform; 21. First conveyor frame; 22. First belt conveyor; 23. First limiting plate; 24. First transmission gap; 3. First plasma treatment device; 31. First plasma support; 32. First plasma treatment main body; 33. First light shield; 34. First plasma nozzle; 4. Second belt conveyor platform; 41. Second conveyor frame; 411. Tube support base; 42. Second belt conveyor; 43. Second limiting plate; 44. Second transmission gap; 5. Second plasma treatment device; 51. Second plasma support; 52. Second plasma treatment main body; 53. 54. Second light shield; 6. Second plasma nozzle; 7. Tilting tube; 61. Tilting channel; 62. Connecting steel bar; 63. Inlet; 64. Outlet; 641. Outlet plate; 7. Feeding mechanism; 71. Feeding frame; 72. Collection hopper; 721. Arrangement trough; 73. Lifting device; 731. Lifting plate; 74. Discharge ramp; 75. Feeding device; 751. Third belt conveyor; 752. First limiting partition; 753. Limiting lever; 754. Limiting strip; 755. Second limiting partition; 756. Third transmission gap; 76. First baffle; 77. Conveying trough; 78. Second baffle; 79. Return trough; 8. Collection basket. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0042] This application discloses a plasma treatment device for photovoltaic junction box housings, used for plasma surface treatment of photovoltaic junction box housings.

[0043] Reference Figure 2 The plasma treatment equipment for photovoltaic junction box housings includes a first belt conveyor 2, a first plasma treatment device 3 installed on the upper side of the first belt conveyor 2, a second belt conveyor 4 located on the outlet side of the first belt conveyor 2, a second plasma treatment device 5 installed on the upper side of the second belt conveyor 4, a tilting tube 6 arranged between the first belt conveyor 2 and the second belt conveyor 4, a feeding mechanism 7 arranged on the side of the first belt conveyor 2, and a collection basket 8 arranged on the outlet side of the second belt conveyor 4. The height of the first belt conveyor 2 is greater than the height of the second belt conveyor 4.

[0044] Reference Figure 2 and Figure 3The first belt conveyor platform 2 includes a first conveyor frame 21 disposed on the ground and a first belt conveyor 22 mounted on top of the first conveyor frame 21. The conveying direction of the first belt conveyor 22 is towards the second belt conveyor platform 4. First limiting plates 23 are bolted to both sides of the conveyor belt on the top of the first belt conveyor 22. The first limiting plates 23 are square plate structures. A first transmission gap 24 is formed between the two first limiting plates 23, allowing only one photovoltaic junction box housing to pass through, so that multiple photovoltaic junction box housings can be conveyed sequentially along the first transmission gap 24 on the conveyor belt of the first belt conveyor 22.

[0045] Reference Figure 4 The first plasma processing device 3 includes a first plasma support 31 mounted on the top of the first conveyor frame 21, a first plasma processing body 32 mounted on the first plasma processing support, and a first light-shielding plate 33 mounted on the first plasma processing support for covering the first plasma processing body 32. The first plasma processing body 32 has a first plasma nozzle 34 that is vertically downward and located above the first transmission gap 24. When a photovoltaic junction box housing located on the first conveyor belt passes the first plasma nozzle 34, the first plasma nozzle 34 sprays plasma onto one side of the photovoltaic junction box housing.

[0046] Reference Figure 2 and Figure 3 The second belt conveyor 4 includes a second conveyor frame 41 disposed on the ground and a second belt conveyor 42 mounted on top of the conveyor frame. The conveying direction of the second belt conveyor 42 is towards the collection basket 8. Second limiting plates 43 are bolted to both sides of the conveyor belt on the top of the second belt conveyor 42. The second limiting plates 43 are square plate structures. A second transmission gap 44 is formed between the two second limiting plates 43, allowing only one photovoltaic junction box housing to pass through, so that multiple photovoltaic junction box housings can be conveyed sequentially along the second transmission gap 44 on the conveyor belt of the second belt conveyor 42.

[0047] Reference Figure 5 The second plasma processing device 5 includes a second plasma support 51 mounted on the top of the second support platform, a second plasma processing body 52 mounted on the second plasma processing support, and a second light-shielding plate 53 mounted on the second plasma processing support for covering the second plasma processing body 52. ​​The second plasma processing body 52 has a second plasma nozzle 54 that points vertically downwards and is located above the second transmission gap 44. When the photovoltaic junction box housing on the conveyor belt of the second belt conveyor 4 passes the second plasma nozzle 54, the second plasma nozzle 54 sprays plasma onto the other side of the photovoltaic junction box housing.

[0048] Reference Figure 3 and Figure 6 The rotating tube 6 is formed by twisting a rectangular tube at a twist angle of 180 degrees. The rotating tube 6 has a rotating channel 61 for the photovoltaic junction box housing to pass through. One end of the rotating tube 6 facing the second belt conveyor is connected to the ends of two first limiting cross plates 23 by two connecting steel bars 62, while the other end is positioned on the second belt conveyor 42. The second conveyor frame 41 has a tube support seat 411 for abutting against the bottom of the rotating tube 6. The entrance side of the rotating tube 6 has an outwardly expanding entrance portion 63, with two connecting steel bars 62 welded to both sides of the entrance portion 63.

[0049] Reference Figure 3 and Figure 7 The outlet side of the flip tube 6 is provided with an outlet 64 directly opposite the second transmission gap 44, and outlet plates 641 are vertically arranged on both sides of the outlet 64. The outlet plates 641 are square plates. When the photovoltaic junction box shell enters from the inlet 63 of the flip tube 6, it passes through the flip channel 61. Since the twist angle of the flip tube 6 is 180 degrees, that is, the flip angle of the flip channel 61 is also 180 degrees, the photovoltaic junction box shell completes the flipping action when it is output from the outlet 64 of the flip tube 6.

[0050] Reference Figure 8 The feeding mechanism 7 includes a feeding frame 71, a collecting hopper 72 mounted on the feeding frame 71, a lifting device 73 mounted on the feeding frame 71, a discharge ramp 74 located on the outlet side of the lifting device 73 and communicating with the collecting hopper 72, and a feeding device 75 mounted on the frame. The collecting hopper 72 has an arrangement slot 721 on the side facing the lifting device 73 for accommodating the lifting device 73. The bottom of the collecting hopper 72 is inclined downwards towards the arrangement slot 721, allowing the photovoltaic junction box housing to move towards the lifting device 73.

[0051] Reference Figure 8 The lifting device 73 is a belt conveyor, and lifting plates 731 are spaced apart on the conveyor belt of the belt conveyor. The lifting plates 731 can sequentially transport the photovoltaic junction box housing to a high position and then drop it onto the unloading inclined plate 74.

[0052] Reference Figure 8The top of the feeding ramp 74 is positioned below the outlet end of the lifting device 73. To prevent the photovoltaic junction box housing from detaching from the side of the feeding ramp 74 when it falls from the lifting device 73, a first baffle 76 is provided on the side of the feeding ramp 74 away from the lifting device 73. A conveying groove 77 is formed on the inner side of the first baffle 76 of the feeding ramp 74, and a second baffle 78 is provided on the side of the conveying groove 77 facing the lifting device 73. The outlet end of the conveying groove 77 is directly opposite the feeding device 75, and a return groove 79 connecting the second baffle 78 and the lifting device 73 to the collection funnel 72 is formed. When the photovoltaic junction box housing falls from the top of the feeding ramp 74, some of the housing can slide sequentially along the conveying groove 77 to the feeding device 75, while the rest can fall back into the collection funnel 72 along the return groove 79.

[0053] Reference Figure 8 The feeding device 75 includes a third belt conveyor 751 mounted on the feeding frame 71 and near the first baffle 76, a first limiting partition 752 mounted on the feeding frame 71 and connected to the first baffle 76, a limiting paddle 753 mounted on the first limiting partition 752, a limiting strip 754 mounted on the first limiting partition 752, and a second limiting partition 755 mounted on the feeding frame 71 and near the collecting hopper 72. The limiting paddle 753 is arranged inclined along the conveying direction of the third belt conveyor 751 and towards the collecting hopper 72. The distance between the bottom surface of the limiting paddle 753 and the conveyor belt of the third belt conveyor 751 is less than the width and height of the photovoltaic junction box housing, so that when the photovoltaic junction box housing is conveyed on the conveyor belt of the third belt conveyor 751, the photovoltaic junction box housing that is vertically arranged or two photovoltaic junction box housings stacked together and located on the upper side can be pushed down into the collection funnel 72 by the limiting paddle 753.

[0054] Reference Figure 8 The first limiting partition 752 and the second limiting partition 755 both extend to the upper side of the conveyor belt of the first belt conveyor 22, and a third transmission gap 756 is formed between the first limiting partition 752 and the second limiting partition 755, which is only for one photovoltaic junction box housing to pass through. The outlet end of the third transmission gap 756 is directly opposite to the second transmission gap 44.

[0055] Combination Figures 2 to 8The implementation principle of a plasma treatment device for photovoltaic junction box housings according to an embodiment of this application is as follows: Several photovoltaic junction box housings are placed in a collection funnel 72. A lifting device 73 lifts the photovoltaic junction box housings to a high position and drops them along a discharge ramp 74 to a feeding device 75. The feeding device 75 transports the photovoltaic junction box housings to a first belt conveyor 2. A first plasma nozzle 34 located on the upper side of the first belt conveyor 2 sprays plasma toward one side of the photovoltaic junction box housing. Subsequently, the photovoltaic junction box housings fall into a flipping tube 6 and, after passing through a flipping channel 61, flip 180 degrees and fall onto a second belt conveyor 4. A second plasma nozzle 54 located on the second belt conveyor 4 sprays plasma toward the other side of the photovoltaic junction box housing. Finally, the housings are transported to a collection basket 8 via the second belt conveyor 4.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A photovoltaic junction box housing plasma processing apparatus characterized by, The first belt conveying table (2), the first plasma processing device (3) installed on the upper side of the first belt conveying table (2), the second belt conveying table (4) located on the outlet side of the first belt conveying table (2), the second plasma processing device (5) installed on the upper side of the second belt conveying table (4), and the turnover pipe body (6) arranged between the first belt conveying table (2) and the second belt conveying table (4); the height of the first belt conveying table (2) is greater than the height of the second belt conveying table (4); the turnover pipe body (6) has a turnover channel (61) for the photovoltaic junction box shell to pass through, and the turnover angle of the turnover channel (61) is 180 degrees.

2. A photovoltaic junction box housing plasma processing apparatus as defined in claim 1, wherein, The first belt conveying table (2) is provided with first limiting horizontal plates (23) on both sides of the conveying belt, and a first transmission gap (24) for only one photovoltaic junction box shell to pass through is formed between the two first limiting horizontal plates (23); the second belt conveying table (4) is provided with second limiting horizontal plates (43) on both sides of the conveying belt, and a second transmission gap (44) for only one photovoltaic junction box shell to pass through is formed between the two second limiting horizontal plates (43).

3. A photovoltaic junction box housing plasma treatment apparatus according to claim 2, wherein, The turnover pipe body (6) is provided with an inlet portion (63) that expands outward and is used for the input of the photovoltaic junction box shell on the inlet side, and the opening of the inlet portion (63) is opposite to the outlet of the first transmission gap (24).

4. A photovoltaic junction box housing plasma treatment apparatus according to claim 2, wherein, The turnover pipe body (6) is provided with an outlet portion (64) opposite to the inlet of the second transmission gap (44), and the outlet portion (64) is provided with outlet plates (641) arranged vertically on both sides and used for limiting the lateral deviation of the photovoltaic junction box shell.

5. A photovoltaic junction box housing plasma processing apparatus as defined in claim 1, wherein, It also includes a feeding mechanism (7) located on the inlet side of the first belt conveying table (2); the feeding mechanism includes a feeding rack (71), a material collecting hopper (72) installed on the feeding rack (71), a lifting device (73) used for lifting the photovoltaic junction box shell in the material collecting hopper (72) to a high place, a discharging inclined plate (74) arranged at the outlet of the lifting device (73) and communicating with the material collecting hopper (72), and a feeding device (75) used for receiving the photovoltaic junction box shell output from the lifting device (73); the discharging inclined plate (74) is provided with a first baffle (76) on the side away from the lifting device (73), and the discharging inclined plate (74) is provided with a conveying groove (77) for only one photovoltaic junction box shell to pass through on the inner side close to the first baffle (76), and the outlet of the conveying groove (77) is opposite to the feeding device (75).

6. A photovoltaic junction box housing plasma treatment apparatus according to claim 5, wherein, The feeding device (75) comprises a third belt conveying table (751) mounted on the feeding frame, a first limiting baffle (752) mounted on the feeding frame (71) and away from one side of the collecting funnel (72), and a limiting tab (753) mounted on the first limiting baffle (752) and arranged obliquely towards the collecting funnel (72); the distance between the bottom surface of the limiting tab (753) and the conveying belt of the third belt conveying table (751) is less than the width of the photovoltaic junction box shell and greater than the height of the photovoltaic junction box shell.

7. A photovoltaic junction box housing plasma treatment apparatus according to claim 6, wherein, The third belt conveying table (751) is provided with a second limiting baffle (755) at the outlet end of the conveying belt and close to one side of the collecting funnel (72); the first limiting baffle (752) and the second limiting baffle (755) form a third transmission gap (756) for passing only one photovoltaic junction box shell.

8. A photovoltaic junction box housing plasma treatment apparatus according to claim 7, wherein, The upper side of the third transmission gap (756) is provided with a limiting strip (754).

9. A photovoltaic junction box housing plasma processing apparatus as defined in claim 1, wherein, The outer side of the first plasma processing device (3) is circumferentially provided with a first light shielding plate (33); the outer side of the second plasma processing device (5) is circumferentially provided with a second light shielding plate (53).

10. A photovoltaic junction box housing plasma processing apparatus as defined in claim 1, wherein, Further comprising a collecting basket (8) arranged at the outlet side of the second belt conveying table (4) and used for receiving the photovoltaic junction box shell.

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