Electrostatic adsorption device for photovoltaic adhesive film

Abstract

The utility model relates to the technical field of photovoltaic adhesive film installation equipment, in particular to a photovoltaic adhesive film electrostatic adsorption device, and aims to solve the problems of fixation of an adhesive film and glass and elimination of hollowing bubbles between the adhesive film and the glass in the prior art. The photovoltaic adhesive film electrostatic adsorption device comprises a main mounting rack, the belt conveying line is arranged on the main mounting rack, a photoelectric sensor is arranged on the belt conveying line, and the belt conveying line is used for detecting whether materials are fed into the belt conveying line or not; the door-shaped bracket is arranged on the main mounting rack and is close to the feeding end of the belt conveying line; the electrostatic generation unit is arranged on the door-shaped bracket; the air blowing unit is arranged on the door-shaped bracket; and the blowing unit is in electric signal connection with the photoelectric sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic film installation equipment, in particular to a photovoltaic film electrostatic adsorption device. Background Art

[0002] When PV module encapsulation technology doesn't involve butyl adhesive, the film's precision requirements are low, and precision cutting isn't necessary. With the widespread adoption of butyl adhesive encapsulation technology in the PV module industry, the process requires evenly coating the adhesive at fixed locations around the base glass surface. Prior to applying the butyl adhesive, the precisely cut film must be applied to the base glass. The film must maintain a constant distance from each edge of the glass and remain fixed. Traditionally, after film application, hollowing occurs—bubbles form between the film and the glass surface. Furthermore, the film is slippery, resulting in low friction with the glass surface after application. This can cause the film to shift after passing through a conveyor belt, requiring manual alignment. After alignment, a four-point electric iron is used to secure the film's four corners to the glass, significantly impacting the butyl adhesive process's cycle time. While the film's position remains constant during conveyor conveyance, the presence of hollowing bubbles between the film and the glass persists, hindering the subsequent automated cell placement process. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a photovoltaic film electrostatic adsorption device to solve the problem of fixing the film to the glass and eliminating the hollow bubbles between the film and the glass in the prior art.

[0004] Based on the above-mentioned purpose, the utility model provides a photovoltaic film electrostatic adsorption device, including a main mounting frame; a belt conveyor line, which is arranged on the main mounting frame and is provided with a photoelectric sensor for detecting whether material is fed into the belt conveyor line; a gate-shaped bracket, which is arranged on the main mounting frame, close to the end of the belt conveyor line where material is fed; an electrostatic generating unit, which is arranged on the gate-shaped bracket; and an air blowing unit, which is arranged on the gate-shaped bracket; the air blowing unit is electrically connected to the photoelectric sensor signal.

[0005] As a further improvement of the present application, the electrostatic generating unit includes an electrostatic emission rod mounted on the door-shaped bracket and a plurality of small probes arranged on the lower side of the electrostatic emission rod.

[0006] As a further improvement of the present application, the electrostatic generating unit also includes an air outlet module, which includes a shell that wraps the electrostatic emission rod and the small probe, an air inlet is provided on the side of the shell, and an air outlet is provided at each of the small probes in the shell. Gas is introduced into the air inlet, and the gas is blown out from the air outlet to take away the generated static charge.

[0007] As a further improvement of the present application, the blowing unit includes an air source, a main air inlet pipe, an air blowing solenoid valve on the main air inlet pipe and an air branch pipe; the air branch pipe is a tubular structure, which is arranged on the door-shaped bracket, and is provided with a main air inlet and several air branch outlets, and the air branch outlets are also provided with a blowing nozzle, and the blowing nozzle faces the belt conveyor line; one end of the main air inlet pipe is connected to the air source, and the other end is connected to the main air inlet; the air blowing solenoid valve is electrically connected to the photoelectric sensor signal.

[0008] As a further improvement of the present application, the blowing nozzle includes a flat blowing nozzle and a trachea joint, the trachea joint is connected to the branch air outlet, the flat blowing nozzle is arranged on the trachea joint, and the angle of the trachea joint can be adjusted on the trachea joint; the end of the flat blowing nozzle connected to the trachea joint is a round mouth, and the end facing away is flat.

[0009] The beneficial effects of the present invention are as follows: After the photovoltaic film electrostatic adsorption device is activated, the static electricity generating unit is in an on state, continuously generating static electricity; when glass is fed into the photoelectric sensor position on the belt conveyor line, the photoelectric sensor detects the feeding, and the air blowing unit starts blowing, the blown air smoothing the film on the glass, eliminating the air bubbles between the film and the glass. Furthermore, the air flow also accelerates the static electricity generated by the static electricity generating unit to the film. Under the action of electrostatic adsorption, an electrostatic adsorption force is generated between the film and the glass, thereby firmly fixing the film to the glass surface. The electrostatic adsorption force not only fixes the film but also promotes the elimination of air bubbles between the film and the glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 This is a schematic structural diagram of a photovoltaic film electrostatic adsorption device according to an embodiment of the present utility model;

[0012] Figure 2 This is a structural schematic diagram of an electrostatic generating unit of a photovoltaic film electrostatic adsorption device according to an embodiment of the present utility model;

[0013] Figure 3 This is a structural schematic diagram of an air blowing unit of a photovoltaic film electrostatic adsorption device according to an embodiment of the present utility model;

[0014] Figure 4This is a structural schematic diagram of the cooperation between a flat air blowing nozzle and an air pipe joint of a photovoltaic film electrostatic adsorption device according to an embodiment of the utility model.

[0015] Among them, 1. Belt conveyor line; 2. Door-shaped bracket; 31. Electrostatic emission rod; 32. Small probe; 33. Shell; 41. Main air inlet pipe; 42. Branch air pipe; 421. Main air inlet; 422. Branch air outlet; 5. Main mounting frame; 6: Blowing solenoid valve; 7. Flat blowing nozzle; 8. Air pipe connector. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0017] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0018] The photovoltaic film needs to be adsorbed onto the glass below, such as Figure 1 As shown, a photovoltaic film electrostatic adsorption device includes a main mounting frame 5; a belt conveyor line 1, which is arranged on the main mounting frame 5 and is provided with a photoelectric sensor for detecting whether material is fed into the belt conveyor line 1; a door-shaped bracket 2, which is arranged on the main mounting frame 5, close to the end of the belt conveyor line 1 where material is fed; an electrostatic generating unit, which is arranged on the door-shaped bracket 2; and an air blowing unit, which is arranged on the door-shaped bracket 2; the air blowing unit is electrically connected to the photoelectric sensor signal.

[0019] The width of the door-shaped bracket 2 is greater than the width of the glass, so that the glass can easily enter and exit the belt conveyor line 1.

[0020] After the photovoltaic film electrostatic adsorption device is started, the electrostatic generating unit is synchronously turned on and remains in the turned-on state to generate static electricity all the time; when the glass is fed into the photoelectric sensor position on the belt conveyor line 1, the photoelectric sensor detects the feeding, and the blowing unit starts blowing. The blown gas smoothes the film on the glass, and the air flow also drives the static electricity generated by the electrostatic generating unit to accelerate to the film. Under the action of electrostatic adsorption, an electrostatic adsorption force is generated between the film and the glass, thereby firmly fixing the film on the glass surface.

[0021] like Figure 2 As shown, in order to generate and release static charges, the static electricity generating unit includes an electrostatic emission rod 31 mounted on the gate-shaped bracket 2 and a plurality of small probes 32 arranged on the lower side of the electrostatic emission rod 31. The static electricity generated by the electrostatic emission rod 31 is concentrated at the small probes 32 and then released.

[0022] In order to accelerate the downward movement of static charge, the static electricity generating unit also includes an air outlet module, which includes a shell 33 that wraps the static electricity emission rod 31 and the small probe 32. An air inlet is provided on the side of the shell 33, and an air outlet is provided at each of the small probes 32 of the shell 33. Gas is introduced into the air inlet, and the gas is blown out from the air outlet to take away the generated static charge.

[0023] To blow air into the film and smooth it, the blowing unit includes an air source, a main air inlet pipe 41, an air solenoid valve 6 on the main air inlet pipe 41, and an air branch pipe 42. The air branch pipe 42 is a tubular structure mounted on the gate-shaped bracket 2 and is provided with a main air inlet 421 and several air outlets 422. Each air outlet 422 is also provided with an air nozzle, which faces the belt conveyor 1. One end of the main air inlet pipe 41 is connected to the air source, and the other end is connected to the main air inlet 421. The air solenoid valve 6 is electrically connected to the photoelectric sensor. When glass enters the belt conveyor 1 and is detected, the air solenoid valve 6 opens, and the air blowing unit begins blowing. When the glass leaves the belt conveyor 1, the air solenoid valve 6 closes, and the air blowing unit stops blowing.

[0024] In order to enhance the smoothing effect of blowing, the blowing nozzle includes a flat blowing nozzle 7 and a trachea joint 8, the trachea joint 8 is connected to the branch air outlet 422, the flat blowing nozzle 7 is arranged on the trachea joint 8, and the angle of the trachea joint 8 can be adjusted on the trachea joint 8; the end of the flat blowing nozzle 7 connected to the trachea joint 8 is a round mouth, and the end facing away is flat.

[0025] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0026] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A photovoltaic film electrostatic adsorption device, characterized in that: include Main mounting frame (5); A belt conveyor line (1) is arranged on the main mounting frame (5) and is provided with a photoelectric sensor for detecting whether material is fed into the belt conveyor line (1); A door-shaped bracket (2) is arranged on the main mounting frame (5) and is close to an end of the belt conveyor line (1) where the belt conveyor line (1) feeds the material; An electrostatic generating unit is arranged on the door-shaped bracket (2); An air blowing unit is arranged on the door-shaped bracket (2); The air blowing unit is connected to the photoelectric sensor by an electrical signal.

2. The photovoltaic film electrostatic adsorption device according to claim 1, characterized in that: The static electricity generating unit comprises a static electricity emission rod (31) mounted on the door-shaped bracket (2) and a plurality of small probes (32) arranged on the lower side of the static electricity emission rod (31).

3. The photovoltaic film electrostatic adsorption device according to claim 2, characterized in that: The static electricity generating unit further comprises an air outlet module, the air outlet module comprising a shell (33) wrapping the static electricity emission rod (31) and the small probe (32), an air inlet being provided on the side of the shell (33), and an air outlet being provided at each of the small probes (32), gas being introduced into the air inlet and being blown out from the air outlet to carry away the generated static charge.

4. The photovoltaic film electrostatic adsorption device according to claim 1, characterized in that: The blowing unit comprises an air source, a main air inlet pipe (41), an air blowing solenoid valve (6) on the main air inlet pipe (41) and an air distribution pipe (42); The air distribution pipe (42) is a tubular structure, arranged on the door-shaped bracket (2), and is provided with a main air inlet (421) and a plurality of air outlets (422). The air outlets (422) are also provided with air blowing nozzles, and the air blowing nozzles face the belt conveyor line (1); One end of the main air inlet pipe (41) is in communication with the air source, and the other end is in communication with the main air inlet port (421); The air blowing solenoid valve (6) is connected to the photoelectric sensor for electrical signals.

5. The photovoltaic film electrostatic adsorption device according to claim 4, characterized in that: The blowing nozzle comprises a flat blowing nozzle (7) and an air pipe joint (8), the air pipe joint (8) is connected to the air outlet (422), the flat blowing nozzle (7) is arranged on the air pipe joint (8), and the angle of the air pipe joint (8) can be adjusted on the air pipe joint (8); One end of the flat blowing nozzle (7) connected to the trachea joint (8) is a round mouth, and the other end facing away is flat.

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