Photovoltaic module adhesive film smoothing device

Abstract

The utility model provides a photovoltaic module adhesive film smoothing device, which relates to the technical field of photovoltaic module production and comprises a support frame, a conveying belt arranged in the support frame, a battery piece arranged at the top of the conveying belt, support plates arranged on two sides of the outer end of the support frame, and a top plate arranged at the tops of the two support plates, an outer plate is connected to the side, facing the battery piece, of the top plate, a smoothing assembly arranged between the two supporting plates and used for smoothing an adhesive film laid on the battery piece, and a heating assembly arranged at the bottom of the outer plate and used for heating and softening the adhesive film laid on the battery piece. According to the photovoltaic module adhesive film flattening device, bubbles between an adhesive film and a battery piece are discharged through the flattening assembly, it is ensured that the adhesive film is tightly attached to the battery piece, meanwhile, the adhesive films with different thicknesses can be flattened by adjusting the height, the adhesive films are heated through the heating assembly, the adhesive films become soft, and the adhesive film flattening efficiency is improved. And the adhesive film can be better attached to the battery piece, so that the formation of bubbles and wrinkles is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component production, in particular to a photovoltaic component adhesive film smoothing device. Background Art

[0002] Smoothing out the adhesive film of photovoltaic modules is a key step in the production process of photovoltaic modules. Its main purpose is to ensure that the EVA film or other types of encapsulation films can fit tightly with the battery cells, glass, backplane and other materials to form a good sealing environment, preventing moisture and oxygen from entering the module and affecting the long-term stability and power generation efficiency of the module.

[0003] Regarding the photovoltaic module film smoothing device, it was found through search that the application number CN202220296252.3 discloses a photovoltaic module film smoothing device, which adopts a columnar smoothing roller with an anti-shrinkage V-shaped pattern, and cooperates with a driving mechanism to achieve the overall smoothing of the film. Compared with smoothing methods such as pressure plates and scrapers, it effectively prevents the formation of shrinkage wrinkles on the film and has a better smoothing effect. However, the device still has certain defects in actual use. For example, during the smoothing work, since there will be films of different thicknesses pasted on the battery cells, the device cannot flexibly adjust the height of the smoothing roller, which makes it difficult to smooth films of different thicknesses. In addition, during the film smoothing process, if the temperature of the film is low, the film will not be able to fit well with the battery cell, so that there will be bubbles between the film and the battery cell, which will affect the sealing of the battery cell. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a photovoltaic module film smoothing device, which can discharge bubbles between the film and the battery cell through the smoothing component to ensure that the film and the battery cell are closely fitted, and can also smooth films of different thicknesses by adjusting the height, and heat the film through the heating component to make the film soft, which helps the film to better fit the battery cell, thereby reducing the formation of bubbles and wrinkles.

[0005] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions:

[0006] A photovoltaic module film smoothing device comprises: a support frame, a conveyor belt arranged inside the support frame, a battery cell arranged on the top of the conveyor belt, support plates arranged on both sides of the outer end of the support frame, top plates are provided on the top of two support plates, the top plates are connected to an outer plate on the side facing the battery cell, a smoothing component arranged between the two support plates, which is used to smooth the film laid on the battery cell, and a heating component arranged at the bottom of the outer plate, which is used to heat and soften the film laid on the battery cell.

[0007] Furthermore, the smoothing component includes: a smoothing roller arranged between the two support plates, a rotating shaft rod arranged on both sides of the outer end of the smoothing roller, and a through groove opened on one side of the two support plates. The bubbles between the adhesive film and the battery cell are discharged through the smoothing component to ensure that the adhesive film and the battery cell are tightly fitted. At the same time, the adhesive film of different thicknesses can also be smoothed by adjusting the height.

[0008] Furthermore, the two rotating shaft rods pass through the through groove and are connected to the bottom plate, and pushing cylinders are installed on both sides of the top of the top plate. A push rod is provided at the bottom of the pushing cylinder, and the push rod passes through the top plate and is connected to the bottom plate. The height of the smoothing roller can be adjusted by the two pushing cylinders, so that the smoothing roller can adapt to different thicknesses of rubber films.

[0009] Furthermore, the heating component includes: a plurality of heating boxes arranged on the top of the outer panel, an air inlet is provided on one side of the top of the heating box, an air outlet pipe is provided on the side of the heating box away from the air inlet, three resistance wires are installed inside the heating box, an air outlet hood is arranged on the bottom of the outer panel, and the air outlet pipe is communicated with the air outlet hood, and the adhesive film is heated by the heating component to make the adhesive film soft, which helps the adhesive film to better fit the battery cell, thereby reducing the formation of bubbles and wrinkles.

[0010] Furthermore, a mounting frame is provided on one side of the heating box, an air pump is installed on the top of the mounting frame, and an air supply pipe connected to the air inlet is provided on one side of the air pump. The air pump can transport external air into the interior of the heating box to increase the air temperature.

[0011] Furthermore, a filter is installed inside the air inlet, and the filter is a high-density mesh of 800 meshes. The filter is used to filter dust in the air to prevent dust from contaminating the adhesive film, thereby ensuring that the adhesive film can be correctly and firmly adhered.

[0012] Furthermore, a baffle is provided inside the air outlet hood, a through hole is provided at the center of the baffle, inclined guide holes are provided around the through hole, and a guide plate is provided on the top plate of the guide hole. The guide holes inclined outward around the baffle can make the hot air blow downward evenly, thereby avoiding uneven heating of the film of the battery cell, which may cause local overheating of the film.

[0013] Furthermore, a temperature sensor is provided on one side of the top of the air outlet hood, a detection probe extending to the inside of the air outlet hood is provided on the bottom of the temperature sensor, and a display screen electrically connected to the temperature sensor is provided on one side of the top of the outer panel. The temperature sensor detects and collects air temperature data and transmits it to the display screen, so that the staff can monitor and control the temperature of the hot air to avoid excessively high temperature of the film.

[0014] Furthermore, a conveying platform is provided at the outer end of the support frame near the smoothing roller, and a plurality of transmission rollers flush with the conveyor belt are rotatably connected to the conveying platform through bearings.

[0015] The beneficial effects of the utility model are:

[0016] The smoothing component can be used to expel bubbles between the adhesive film and the battery cell to ensure that the adhesive film and the battery cell fit tightly. At the same time, the adhesive film of different thicknesses can be smoothed by adjusting the height, and the adhesive film can be heated by the heating component to make the adhesive film soft, which helps the adhesive film to better fit the battery cell, thereby reducing the formation of bubbles and wrinkles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is an overall cross-sectional schematic diagram of the utility model.

[0019] Figure 3 It is a schematic diagram of the support plate of the utility model.

[0020] Figure 4 For the utility model Figure 1 Enlarged schematic diagram at point A in the middle.

[0021] Figure 5 It is a schematic diagram of the baffle of the utility model.

[0022] Figure 6 For the utility model Figure 2 Enlarged schematic diagram of point B in the middle.

[0023] Figure 7 For the utility model Figure 2 Enlarged schematic diagram at point C in the middle.

[0024] Figure 1-7 In: 1. Support frame; 101. Conveyor belt; 102. Battery cell; 2. Support plate; 201. Top plate; 202. Through slot; 203. Push cylinder; 204. Push rod; 3. Outer plate; 301. Heating box; 302. Air inlet; 303. Air outlet duct; 304. Resistance wire; 305. Filter; 4. Smoothing roller; 401. Rotating shaft; 402. Bottom plate; 5. Air outlet hood; 501. Baffle; 502. Through hole; 503. Guide hole; 504. Guide plate; 6. Mounting frame; 601. Air pump; 602. Air supply duct; 7. Temperature sensor; 701. Detection probe; 702. Display screen; 8. Conveyor platform; 801. Transmission roller. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present application.

[0026] An embodiment of the present application provides a photovoltaic module film smoothing device, which can discharge bubbles between the film and the battery cell through a smoothing component to ensure that the film and the battery cell are tightly fitted. It can also smooth films of different thicknesses by adjusting the height and heat the film through a heating component to make the film soft, which helps the film to better fit the battery cell, thereby reducing the formation of bubbles and wrinkles.

[0027] The present application is described in detail below with reference to the accompanying drawings and specific implementation methods. Example 1

[0028] like Figure 1-Figure 2 As shown, a photovoltaic module film smoothing device includes: a support frame 1, a conveyor belt 101 arranged inside the support frame 1, a battery cell 102 arranged on the top of the conveyor belt 101, support plates 2 arranged on both sides of the outer end of the support frame 1, top plates 201 are provided on the top of the two support plates 2, and the top plates 201 are connected to the side of the battery cell 102 with an outer plate 3, a smoothing component arranged between the two support plates 2, which is used to smooth the film laid on the battery cell 102, and a heating component arranged at the bottom of the outer plate 3, which is used to heat and soften the film laid on the battery cell 102.

[0029] In some embodiments, reference Figure 1-Figure 4 The smoothing assembly includes: a smoothing roller 4 arranged between the two support plates 2, a rotating shaft rod 401 arranged on both sides of the outer end of the smoothing roller 4, and a through groove 202 opened on one side of the two support plates 2.

[0030] After the adhesive film is laid on the surface of the battery cell 102, the battery cell 102 is placed above the conveyor belt 101, and a servo motor and a controller are installed at the outer end of the support frame 1. The driving end of the servo motor is connected to the driving roller inside the conveyor belt 101. Then the staff starts the servo motor through the controller to drive the driving roller to rotate, so that the conveyor belt 101 is driven to run, so that the conveyor belt 101 drives the battery cell 102 to move toward the smoothing roller 4 between the two support plates 2. When the battery cell 102 contacts the smoothing roller 4, since the two sides of the outer end of the smoothing roller 4 are rotatably connected with the rotating shaft rod 401, and the rotating shaft rod 401 is supported by the through groove 202, the smoothing roller 4 is pushed by the battery cell 102 to rotate, so that the battery cell 102 passes from under the smoothing roller 4. When the battery cell 102 passes, the smoothing roller 4 will continue to smooth the adhesive film on the surface of the battery cell 102, thereby discharging the bubbles between the adhesive film and the battery cell 102, and smoothing the adhesive film to ensure that the adhesive film and the battery cell are tightly fitted.

[0031] Among them, reference Figure 1-Figure 2 A conveying platform 8 is provided on the outer end of the support frame 1 near the smoothing roller 4, and a plurality of transmission rollers 801 flush with the conveyor belt 101 are rotatably connected to the conveying platform 8 through bearings.

[0032] When the adhesive film on the surface of the battery cell 102 is smoothed and moved out of the smoothing roller 4, one end of the battery cell 102 enters the conveying platform 8. Since a driving roller 801 is provided inside the conveying platform to keep it flush with the conveyor belt 101, during the process of the battery cell 102 being moved out, the conveying platform 8 provides support for the battery cell 102 to keep the battery cell 102 running smoothly until the battery cell 102 is completely moved out to the conveying platform 8, that is, the adhesive film smoothing work is completed, and the staff can remove the battery cell 102 from the conveying platform 8.

[0033] Among them, reference Figure 1-Figure 4 , two rotating shafts 401 pass through the through slot 202 and are connected to the bottom plate 402, and pushing cylinders 203 are installed on both sides of the top of the top plate 201, and a push rod 204 is provided at the bottom of the pushing cylinder 203, and the push rod 204 passes through the top plate 201 and is connected to the bottom plate 402. When different thicknesses of adhesive films are pasted on the surface of the battery cell 102, the pushing cylinders 203 installed on both sides of the top of the top plate 201 are started by the controller, and the pushing cylinders 203 are used to make the push rods 204 set at the bottom extend and retract back and forth, and then the bottom plate 402 is driven to move up and down by the push rods 204. Since the rotating shaft 401 passes through the through slot 202 and is connected to the bottom plate 402, the bottom plate 402 can drive the rotating shaft 401 and the smoothing roller 4 to adjust the height up and down, so that the smoothing roller 4 can adapt to adhesive films of different thicknesses. Example 2

[0034] Based on Example 1, Figure 1 , Figure 2 and Figure 6 The heating assembly includes: a plurality of heating boxes 301 arranged on the top of the outer plate 3, an air inlet 302 is provided on one side of the top of the heating box 301, an air outlet pipe 303 is provided on the side of the heating box 301 away from the air inlet 302, three resistance wires 304 installed inside the heating box 301, an air outlet hood 5 is arranged at the bottom of the outer plate 3, and the air outlet pipe 303 is communicated with the air outlet hood 5, a mounting frame 6 is provided on one side of the heating box 301, an air pump 601 is installed on the top of the mounting frame 6, and an air supply pipe 602 communicated with the air inlet 302 is provided on one side of the air pump 601.

[0035] When smoothing the adhesive film laid on the surface of the battery cell 102, the conveyor belt 101 drives the battery cell 102 to move toward the smoothing roller 4. At this time, the air pump 601 on the top of the mounting frame 6 and the three resistance wires 304 inside the heating box 301 are started by the controller. After starting the air pump 601, the air supply pipe 302 can be used to let air enter the heating box 301 through the air inlet 302. After the current passes through the resistance wire 304, the resistance wire 304 will heat up and generate heat inside the heating box 301, so that the air can be heated after entering the heating box 301, and then the hot air is formed and flows into the air outlet hood 5 through the air outlet pipe 303. The air outlet hood 5 blows the hot air to the battery cell 102 passing below, so that the temperature of the adhesive film on the surface of the battery cell 102 rises. After the temperature of the adhesive film rises, it will become softer and more fluid, which helps the adhesive film to better fit the battery cell 102, thereby reducing the formation of bubbles and wrinkles and making the smoothing effect better.

[0036] Before placing the battery cell 102 on the conveyor belt 101, the adhesive film on the battery cell 102 is laid manually. Since the adhesive film itself is sticky, when hot air blows toward the battery cell 102, the adhesive film will not separate from the battery cell 102, thereby preventing the hot air from blowing up the adhesive film and causing wrinkles in the adhesive film.

[0037] Among them, reference Figure 1 , Figure 2 and Figure 6 A filter 305 is installed inside the air inlet 302, and the filter 305 is a high-density mesh of 800 meshes. The high-density filter 305 installed inside the air inlet can filter dust in the air, thereby preventing dust from contaminating the film, thereby ensuring that the film can be correctly and firmly adhered.

[0038] Among them, reference Figure 1 , Figure 2 , Figure 5 and Figure 7A baffle plate 501 is provided inside the air outlet hood 5, a through hole 502 is provided at the center of the baffle plate 501, inclined guide holes 503 are provided around the through hole 502, and a guide plate 504 is provided on the top plate of the guide hole 503. When the hot air is blown toward the battery cell 102 from the inside of the air outlet hood 5, the guide holes 503 inclined outwardly around the baffle plate 501 can be used to make the hot air blow down evenly, and the guide plate 504 can make the hot air enter the guide hole 503, thereby preventing the battery cell 102 from being heated unevenly and causing local overheating of the film.

[0039] Among them, reference Figure 1 , Figure 2 and Figure 7 A temperature sensor 7 is provided on one side of the top of the air outlet hood 5, a detection probe 701 extending to the inside of the air outlet hood 5 is provided at the bottom of the temperature sensor 7, and a display screen 702 electrically connected to the temperature sensor 7 is provided on one side of the top of the outer plate 3. When hot air continues to blow toward the battery cell 102, the temperature sensor 7 and the detection probe 701 extending to the inside of the air outlet hood 5 are started by the controller to detect and collect the hot air temperature, and then the temperature sensor 7 transmits the temperature data to the display screen 702 on one side of the top of the outer plate 3 through an electric wire connection, so that the staff can monitor the temperature of the hot air and adjust the current passing through the resistance wire 304 on the controller to control the temperature of the hot air to avoid excessive temperature of the film.

[0040] Among them, the model of the temperature sensor 7 can be WZP-291, and its working principle is: the temperature sensor 7 is generally composed of three parts: a temperature sensitive element, a conversion element and a temperature conversion circuit. The function of the temperature sensitive element is to convert the sensed temperature signal into a quantity that is easily measured and has a certain relationship with the temperature. The function of the conversion element is to convert the physical quantity output by the temperature sensitive element into an electrical quantity output. The function of the conversion circuit is to convert the electrical quantity output by the conversion element into an electrical quantity that is easy to measure, such as voltage, current, frequency, etc. The temperature sensor 7 is a mature conventional technology in this technical field, and this scheme does not make improvements to the circuit or program of the temperature sensor 7. The circuit and signal connection method between the temperature sensor 7 and the display screen 702 also belongs to the public conventional technology, so the circuit and signal connection relationship will not be repeated.

[0041] The control program involved in the present utility model can be implemented by those skilled in the art according to the same or similar principles in the prior art, and this part is not the innovation of the present utility model.

[0042] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0043] The above is a detailed introduction to a photovoltaic module film smoothing device provided in an embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application. Ordinary technicians in this field should understand that it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to replace some of the technical features therein with equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A photovoltaic module film smoothing device, characterized in that: include: Support frame (1); A conveyor belt (101) arranged inside the support frame (1); A battery sheet (102) disposed on the top of the conveyor belt (101); Support plates (2) are arranged on both sides of the outer ends of the support frame (1), top plates (201) are provided on the tops of the two support plates (2), and the top plates (201) are connected to outer plates (3) on the side facing the battery cells (102); A smoothing component disposed between the two support plates (2), used for smoothing the adhesive film laid on the battery sheet (102); A heating component arranged at the bottom of the outer plate (3) is used to heat and soften the adhesive film laid on the battery sheet (102).

2. The photovoltaic module film smoothing device according to claim 1, characterized in that: The smoothing component comprises: A smoothing roller (4) disposed between the two support plates (2); Rotating shafts (401) arranged on both sides of the outer ends of the smoothing roller (4); A through slot (202) is provided on one side of the two support plates (2).

3. The photovoltaic module film smoothing device according to claim 2, characterized in that: The two rotating shaft rods (401) pass through the through slot (202) and are connected to the bottom plate (402). Push cylinders (203) are installed on both sides of the top of the top plate (201). A push rod (204) is provided at the bottom of the push cylinder (203). The push rod (204) passes through the top plate (201) and is connected to the bottom plate (402).

4. The photovoltaic module film smoothing device according to claim 1, characterized in that: The heating assembly comprises: A plurality of heating boxes (301) are arranged on the top of the outer plate (3), an air inlet (302) is provided on one side of the top of the heating box (301), and an air outlet pipe (303) is provided on a side of the heating box (301) away from the air inlet (302); Three resistance wires (304) installed inside the heating box (301); An air outlet cover (5) is arranged at the bottom of the outer plate (3), and the air outlet pipe (303) is in communication with the air outlet cover (5).

5. The photovoltaic module film smoothing device according to claim 4, characterized in that: A mounting frame (6) is provided on one side of the heating box (301), an air pump (601) is installed on the top of the mounting frame (6), and an air supply pipe (602) communicating with the air inlet (302) is provided on one side of the air pump (601).

6. The photovoltaic module film smoothing device according to claim 4, characterized in that: A filter screen (305) is installed inside the air inlet (302), and the filter screen (305) is a high-density screen with a mesh size of 800.

7. The photovoltaic module film smoothing device according to claim 4, characterized in that: A baffle (501) is provided inside the air outlet cover (5), a through hole (502) is provided at the center of the baffle (501), inclined guide holes (503) are provided around the through hole (502), and a guide plate (504) is provided on the top plate of the guide hole (503).

8. The photovoltaic module film smoothing device according to claim 4, characterized in that: A temperature sensor (7) is provided on one side of the top of the air outlet hood (5); a detection probe (701) extending into the interior of the air outlet hood (5) is provided on the bottom of the temperature sensor (7); and a display screen (702) electrically connected to the temperature sensor (7) is provided on one side of the top of the outer panel (3).

9. The photovoltaic module film smoothing device according to claim 2, characterized in that: A conveying platform (8) is provided on the outer end of the support frame (1) near the smoothing roller (4), and a plurality of transmission rollers (801) flush with the conveyor belt (101) are rotatably connected to the conveying platform (8) via bearings.

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