Film pasting method and film pasting system for photovoltaic module

Abstract

The invention discloses a film pasting method and system for a photovoltaic module, and the method comprises the steps: cutting a first film belt into a plurality of first film strips, forming a first film strip group through the array arrangement of the plurality of first film strips in a first direction, driving a protection plate to move to a first station, and carrying out the restoration; and after the first film strip group is laid at intervals in the first direction, the first film strip group is heated and pasted on the protection plate located at the first station. The invention further discloses a film pasting system used for achieving the film pasting method, and the technical scheme can solve the problems that in the related technology, after multiple rolling pressing, the pressing roller is likely to adhere to the film strip during extrusion, the pressing roller is likely to adhere to the film strip, consequently, the pressing roller adsorbs the film strip, and the film strip cannot be adhered to the film strip. The problems that the film strip is prone to skew, and the film paving effect is poor due to the poor pasting effect of the film strip and the protection plate are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic module production, and in particular to a film pasting method and a film pasting system for a photovoltaic module. Background Art

[0002] In photovoltaic modules, in order to reduce manufacturing costs and increase the life of the cells, the EVA film is thinned during the packaging process of photovoltaic module production. However, this also leads to insufficient filling of the gaps between the multiple cell strings in the photovoltaic module, and the gaps also have the problem of light leakage.

[0003] In related technologies, film laminating equipment applies film strips to any of the protective panels on either side of a photovoltaic module, facing the end faces of multiple cell strings, to ensure gap filling during subsequent packaging processes. The protective panel refers to the photovoltaic glass or backsheet in a photovoltaic module. When applying film strips to the backsheet, the film strips can be reflective, non-transparent, or other materials, thereby facilitating the efficient use of sunlight. The conveying mechanism in the film laminating equipment positions and secures the protective panel, while the film laminating mechanism in the film laminating equipment applies film to the protective panel.

[0004] The film laminating mechanism includes a pressing roller, a film roll supply, a hot air blower, and a cutting unit. The film roll supply rotates and outputs a film strip to the pressing roller. The hot air blower heats the film strip between the film roll supply and the pressing roller, making it sticky. The pressing roller rolls and presses the heated film strip to adhere to the protective plate. When the above structure is in use, the pressing roller is prone to sticking to the film strip after multiple rolling and pressing. The pressing roller is prone to sticking to the film strip, causing the pressing roller to absorb the film strip, making the film strip prone to skew and poor adhesion to the protective plate, resulting in poor film laying effect. Summary of the Invention

[0005] The object of the present invention is to provide a film-applying method and a film-applying system for photovoltaic modules to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a method for applying film to photovoltaic modules, the method comprising: cutting a first film tape into a plurality of first film strips, arranging the plurality of first film strips in an array along a first direction to form a first film strip group, driving the protective plate to move to a first workstation and aligning it; laying the first film strip group at intervals along the first direction, and heating and pasting them on the protective plate located at the first workstation.

[0007] Preferably, when the first film strip is cut into a plurality of first film strips, the plurality of first film strips are arranged in an array along the first direction to form the first film strip group, including: the plurality of first film strips are arranged in an array along the first direction to form a plurality of first film strip groups; when the protective plate is moved to the first workstation, one group of the plurality of first film strip groups is laid out at intervals, heated and pasted on the protective plate located at the first workstation.

[0008] Preferably, it also includes: cutting the second film tape into a plurality of second film strips, and arranging the plurality of second film strips in an array along a second direction to form a second film strip group, driving the protective plate to move from the first station to the second station, wherein the first direction is perpendicular to the second direction; laying the second film strip group at intervals along the second direction, and heating and gluing them to the protective plate located at the second station, wherein the first film strip group and the second film strip group are vertically staggered and overlapped.

[0009] Preferably, after the second film strip group is laid out at intervals along the second direction and then heated and pasted on the protective plate located at the second workstation, it also includes: when at least one of the first film carrier area and the second film carrier area is in an unloaded state, the second film strip group is transported to at least one of the first film carrier area and the second film carrier area, wherein the first film carrier area and the second film carrier area are spaced apart along the first direction; after the second film strip group in the first film carrier area is laid out at intervals along the second direction and then heated and pasted on the first area of ​​the protective plate located at the second workstation, after the second film strip group in the second film carrier area is laid out at intervals along the second direction and then heated and pasted on the second area of ​​the protective plate located at the second workstation, wherein the first area and the second area do not overlap.

[0010] Based on the above-mentioned film pasting method, the present application also discloses a film pasting system for implementing the above-mentioned film pasting method, including: a first transmission material channel, the first transmission material channel is used to drive the protective plate to move to the first workstation; a first distance film pasting mechanism, the first distance film pasting mechanism is used to lay the first film strip group at intervals along the first direction, and then heat and paste it on the protective plate located at the first workstation; a first film cutting mechanism, the first film cutting mechanism is used to cut the first film strip into the multiple first film strips, and the multiple first film strips are arranged in an array along the first direction to form the first film strip group, and are transported to the first distance film pasting mechanism; a first film supply mechanism, the first film supply mechanism is used to transport the first film strip to the first film cutting mechanism.

[0011] Preferably, the first film cutting mechanism is used to cut the first film tape into multiple groups of first film strips. When the transmission channel drives the protective plate to move to the first workstation, the first spacing film pasting mechanism lays out one group of the multiple groups of first film strips at a distance and heats and pastes them on the protective plate located at the first workstation.

[0012] Preferably, it also includes: a second conveying channel, a second distance film-laminating mechanism, a second film cutting mechanism and a second film supply mechanism, the second conveying channel is used to drive the protective plate to move to the second work station, the second distance film-laminating mechanism is used to lay the second film strip group at intervals along the second direction, and heat and stick it to the protective plate at the second work station; the second film cutting mechanism is used to cut the second film tape into multiple second film strips, and the multiple second film strips are arranged in an array along the second direction to form the second film strip group, and are transported to the second distance film-laminating mechanism; the second film supply mechanism is used to transport the second film tape to the second film cutting mechanism.

[0013] Preferably, the second film cutting mechanism includes a film cutting body, a first film carrier, a second film carrier and a film transport hand, the film cutting body is used to cut the second film strip into the second film strip group, the film transport hand is used to transport the second film strip group from the film cutting body to the first film carrier or the second film carrier, the second distance film laminating mechanism includes a first distance film grabbing hand and a second distance film grabbing hand, the first distance film grabbing hand is used to grab the second film strip group carried on the first film carrier and lay it on the first area of ​​the protective plate located at the second station, the second distance film grabbing hand is used to grab the second film strip group carried on the second film carrier and lay it on the second area of ​​the protective plate located at the second station, wherein the first area and the second area do not overlap.

[0014] Preferably, the second-distance film-laminating mechanism also includes a first-distance heating element and a second-distance heating element, the first-distance heating element is used to heat the first area of ​​the protective plate located at the second workstation, and the second-distance heating element is used to heat the second area of ​​the protective plate located at the second workstation.

[0015] Preferably, both the first distance film-laminating mechanism and the second distance film-laminating mechanism are provided with a heating element, and the heating element is used to heat the first film strip group or the second film strip group.

[0016] The technical solution adopted in this application can achieve the following beneficial effects:

[0017] A method for applying a film to a photovoltaic module disclosed in the present application includes:

[0018] S1. Cut the first film strip into a plurality of first film strips, arrange the plurality of first film strips in an array along a first direction to form a first film strip group, drive the protective plate to move to the first station, and correct it.

[0019] In this step, the preparation rhythm of the first film strip group can be consistent with the movement rhythm of the protective plate to the first workstation, thereby avoiding waiting and delaying time for one of the two. The alignment of the protective plate at the first workstation is conducive to ensuring the accuracy of film laying.

[0020] S2. Lay the first film strip group at intervals along the first direction, and then heat and stick them on the protective plate located at the first station.

[0021] In this step, the first film strip group needs a protective plate that is laid at a preset interval along one of its side lengths and then heated and pasted to the multiple array-set positions corresponding to the protective plate. Of course, the first direction refers to the array direction of the first film strip group. In other words, the first film strip group can be laid at intervals and then heated and pasted to the multiple array-set gaps formed by each battery cell of multiple battery strings in the photovoltaic module along the long side direction and the multiple positions corresponding to the protective plate, or the first film strip group can be laid at intervals and then heated and pasted to the multiple array-set gaps formed between multiple battery strings in the photovoltaic module and the multiple positions corresponding to the protective plate.

[0022] The above method is to cut the first film tape into multiple first film strips arranged in an array, and the multiple first film strips are arranged in an array to form a first film strip group, and then the first film strip group is laid out as a whole at intervals and then heated and pasted on the protective plate. Compared with the rolling and pressing laying method, the first film strip group is laid out as a whole at intervals and then heated and pasted, so that the laying of the entire first film strip can ensure the linearity of the first film strip, and also avoid squeezing the heated film strip to cause its adhesive to overflow and have an adverse effect on the film laying operation, thereby ensuring the film laying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in 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 merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 A top view of the film-sticking system disclosed in an embodiment of the present application;

[0025] Figure 2 A partial schematic diagram of the film-applying system disclosed in an embodiment of the present application;

[0026] Figure 3 This is a flow chart of the film-applying method disclosed in an embodiment of the present application.

[0027] In the figure: 110, first conveying channel; 120, second conveying channel; 210, first distance film laminating mechanism; 220, first film cutting mechanism; 221, film transport table; 222, film cutting assembly; 223, film pressing component; 230, first film supply mechanism; 310, second distance film laminating mechanism; 311, first distance heating component; 312, second distance heating component; 313, first distance film gripper; 314, second distance film gripper; 320, second film cutting mechanism; 321, first film loading table; 322, second film loading table; 323, film transporter; 330, second film supply mechanism. DETAILED DESCRIPTION

[0028] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0029] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] like Figure 3 As shown, the present application discloses a method for attaching a film to a photovoltaic module, and the disclosed method includes:

[0032] S1. Cut the first film strip into a plurality of first film strips, arrange the plurality of first film strips in an array along a first direction to form a first film strip group, drive the protective plate to move to the first station, and correct it.

[0033] In this step, the preparation rhythm of the first film strip group can be consistent with the movement rhythm of the protective plate to the first workstation, so as to avoid waiting and delaying one of the two. The alignment of the protective plate at the first workstation is conducive to ensuring the accuracy of film laying. Of course, the protective plate refers to the photovoltaic glass or backboard in the photovoltaic module, and this application does not impose any restrictions on this.

[0034] S2. Lay the first film strip group at intervals along the first direction, and then heat and stick them on the protective plate located at the first station.

[0035] In this step, the first film strip group needs to be laid at a preset interval along the length direction of one side of the protective plate, and then heated and pasted to the multiple array-set positions corresponding to the protective plate. Of course, the first direction refers to the array direction of the first film strip group. In other words, the first film strip group can be laid at intervals, heated and pasted to the multiple array-set gaps formed by each battery cell of multiple battery strings in the photovoltaic module along the long side direction and the multiple positions corresponding to the protective plate, or the first film strip group can be laid at intervals, heated and pasted to the multiple array-set gaps formed between multiple battery strings in the photovoltaic module and the multiple positions corresponding to the protective plate.

[0036] The above method is to cut the first film tape into multiple first film strips arranged in an array, and the multiple first film strips are arranged in an array to form a first film strip group, and then the first film strip group is laid out as a whole at intervals and then heated and pasted on the protective plate. Compared with the rolling and pressing laying method, the first film strip group is laid out as a whole at intervals and then heated and pasted, so that the laying of the entire first film strip can ensure the linearity of the first film strip, and also avoid squeezing the heated film strip to cause its adhesive to overflow and have an adverse effect on the film laying operation, thereby ensuring the film laying effect.

[0037] In a further technical solution, the process of cutting the first film strip into a plurality of first film strips and arranging the plurality of first film strips in an array along a first direction to form a first film strip group may include:

[0038] S11, a plurality of first film strips are arranged in an array along a first direction to form a plurality of first film strip groups;

[0039] S12. When the protective plate is moved to the first workstation, one group of the plurality of first film strip groups is laid out at intervals, and then heated and pasted on the protective plate located at the first workstation.

[0040] In this step, multiple groups of first film strip groups are prepared at one time, so that one group of the first film strip groups is heated and glued to the protective plate after laying. When the next protective plate is moved to the first workstation, delays and waiting caused by preparing the next group of first film strip groups can be avoided, indirectly ensuring that the film making cycle is faster than the film laying cycle.

[0041] In the embodiment of the present application, the following may also be included:

[0042] S3. Cut the second film tape into a plurality of second film strips, arrange the plurality of second film strips in an array along a second direction to form a second film strip group, and drive the protective plate to move from the first station to the second station, wherein the first direction is perpendicular to the second direction.

[0043] In this step, the second direction is the array direction of the second film strip group.

[0044] S4. Lay the second film strip group at intervals along the second direction, and then heat and stick them to the protective plate located at the second work station, wherein the first film strip group and the second film strip group are vertically staggered and overlapped.

[0045] In this step, the second film strip group needs to be laid at a preset interval along the length direction of one side of the protective plate, and then heated and pasted to the multiple array settings corresponding to the protective plate. At the same time, the first film strip group and the second film strip group are vertically staggered and overlapped. In other words, the second film strip group can be laid at intervals, heated and pasted to the multiple array settings gaps formed by each battery cell of multiple battery strings in the photovoltaic module along the long side direction and the multiple positions corresponding to the protective plate, or the second film strip group can be laid at intervals, heated and pasted to the multiple array settings gaps formed between multiple battery strings in the photovoltaic module and the multiple positions corresponding to the protective plate. Since the first direction intersects the second direction at right angles, the first film strip group and the second film strip group are arranged in a cross-overlapping manner.

[0046] In a further technical solution, after the second film strip group is laid at intervals along the second direction and then heated and pasted on the protective plate located at the second station, the following steps may also be included:

[0047] S41, when at least one of the first film carrier area and the second film carrier area is in an empty state, transporting the second film strip group to at least one of the first film carrier area and the second film carrier area, wherein the first film carrier area and the second film carrier area are spaced apart along the first direction;

[0048] S42. Lay the second film strip group in the first film carrier area at intervals along the second direction, and then heat and stick them to the first area of ​​the protective plate located at the second station. Lay the second film strip group in the second film carrier area at intervals along the second direction, and then heat and stick them to the second area of ​​the protective plate located at the second station, wherein the first area and the second area do not overlap.

[0049] In this step, in order to avoid the second film strip group being too long and making it difficult to ensure the straightness of the second film strip group, the second film strip group is laid on the first area and the second area of ​​the protective plate at the same time and then heated and pasted, thereby shortening the length of the second film strip group to ensure the straightness of the second film strip group after laying and heating and pasting.

[0050] Based on the above-mentioned film laminating method, the present application also discloses a film laminating device for implementing steps S1, S11, S12 and step S2 in the above-mentioned film laminating method. The disclosed film laminating device includes a first transmission channel 110, a first spacing film laminating mechanism 210, a first film cutting mechanism 220 and a first film supply mechanism 230.

[0051] The first transmission channel 110 is used to drive the protective plate to move to the first workstation, and the first workstation is located on the first transmission channel 110; the first interval film laminating mechanism 210 is used to lay the first film strip group at intervals along the first direction, and then heat and paste it on the protective plate located at the first workstation; the first film cutting mechanism 220 is used to cut the first film strip into multiple first film strips, and the multiple first film strips are arranged in an array along the first direction to form a first film strip group, and are transported to the first interval film laminating mechanism 210; the first film supply mechanism 230 is used to transport the first film strip to the first film cutting mechanism 220.

[0052] During the use of the film pasting device, the first film supply mechanism 230 conveys the first film tape to the first film cutting mechanism 220, and the first film cutting mechanism 220 cuts the first film tape into a first film strip group and conveys it to the first distance film pasting mechanism 210. When the protective plate moves to the first workstation, the first distance film pasting mechanism 210 lays the first film strip group at intervals along the first direction and heats and pastes it on the protective plate located at the first workstation.

[0053] In the above structure, after the first film strip is used up, the maintenance personnel only needs to replace the first film strip, which saves time and effort compared to replacing multiple film strip rolls in sequence. Compared with the rolling and pressing method, after the entire film strip is laid, heating and pasting can prevent the film strip adhesive from being contaminated by the first spacing film-laminating mechanism 210, thereby reducing the maintenance personnel's work on the first spacing film-laminating mechanism 210, thereby saving maintenance time, which is beneficial to improving the film-laying efficiency of the film-laminating device.

[0054] In a further technical solution, the first film cutting mechanism 220 can be used to cut the first film tape into multiple groups of first film strips. When the first transmission channel 110 drives the protective plate to move to the first workstation, the first spacing film pasting mechanism 210 lays one group of the multiple groups of first film strips at a distance and heats and pastes them on the protective plate located at the first workstation.

[0055] Compared with the time-consuming film laying, the film cutting requires stretching and cutting, which takes longer. However, the first film cutting mechanism 220 prepares multiple groups of first film strips at a time, thereby ensuring that the film laying efficiency of the first interval film pasting mechanism 210 is lower than the film making efficiency of the first film cutting mechanism 220 in terms of film laying rhythm, which is beneficial to ensuring the film laying efficiency of the film pasting device.

[0056] like Figure 1 and Figure 2As shown, the present application also discloses a film pasting system for implementing the above-mentioned film pasting method. The disclosed film pasting system includes the above-mentioned film pasting device, a second transmission channel 120, a second spacing film pasting mechanism 310, a second film cutting mechanism 320 and a second film supply mechanism 330. The second transmission channel 120 is used to drive the protective plate to move to the second workstation. The second spacing film pasting mechanism 310 is used to lay the second film strip group at intervals along the second direction and heat and paste it on the protective plate at the second workstation; the second film cutting mechanism 320 is used to cut the second film strip into multiple second film strips, and the multiple second film strips are arranged in an array along the second direction to form a second film strip group, and are transported to the second spacing film pasting mechanism 310; the second film supply mechanism 330 is used to transport the second film strip to the second film cutting mechanism 320.

[0057] During the use of the film pasting system, the first film supply mechanism 230 conveys the first film tape to the first film cutting mechanism 220, the first film cutting mechanism 220 cuts the first film tape into a first film strip group, and conveys it to the first distance film pasting mechanism 210. When the protective plate moves to the first station, the first distance film pasting mechanism 210 lays the first film strip group at intervals along the first direction, and heats and sticks it to the protective plate located at the first station; the second film supply mechanism 330 conveys the second film tape to the second film cutting mechanism 320, the second film cutting mechanism 320 cuts the second film tape into a second film strip group, and conveys it to the second distance film pasting mechanism 310. When the protective plate moves to the second station, the second distance film pasting mechanism 310 lays the second film strip group at intervals along the second direction, and heats and sticks it to the protective plate located at the second station.

[0058] The above structure conveys the first film tape through the first film supply mechanism 230 and the second film tape through the second mold mechanism. After the first film tape and the second film tape are used up, the maintenance personnel only need to replace the two, which saves time and effort. The first film cutting mechanism 220 cuts the first film tape into a first film strip group, and the second film cutting mechanism 320 cuts the second film tape into a second film strip group. By transporting the first film strip group and the second film strip group as a whole group, laying them, and then heating and pasting them, compared with the rolling and pressing method, laying the entire film strip and then heating and pasting them can avoid the film strip adhesive from being contaminated on the first and second interval film pasting mechanisms 210 and 310, thereby reducing the maintenance of the first and second interval film pasting mechanisms 210 and 310 by the maintenance personnel, thereby saving maintenance time, which is beneficial to improving the film laying efficiency of the film pasting system.

[0059] In addition, the first transmission channel 110 and the second transmission channel 120 can both be roller channels, synchronous belt channels, etc., and this application does not impose any restrictions on this; the first interval film laminating mechanism 210 and the second interval film laminating mechanism 310 can both be one or more combinations of a scissor-type composite articulated mechanism and multiple film grabbing hands, an equidistant belt series film grabbing hands combination, etc., and this application does not impose any restrictions on this. Of course, the film grabbing hands can be pneumatic adsorption hands, electromagnetic adsorption hands, etc., and this application does not impose any restrictions on this; the first film supply mechanism 230 and the second film supply mechanism 330 can both be a combination of a film roll machine and a mobile film carrier, a combination of a film sheet carrier and a mobile film cutting table, etc., and this application does not impose any restrictions on this.

[0060] In a further technical solution, there can be two first film cutting mechanisms 220 and first film supply mechanisms 230, and they can be combined in pairs to form two groups of film supply and cutting devices. The two groups of film supply and cutting devices are correspondingly arranged on both sides of the first workstation. The first film cutting mechanism 220 can include a film transport table 221, a film cutting assembly 222 and a film pressing part 223. The first film supply mechanism 230 can transport the first film tape to the film transport table 221, and the film pressing part 223 is used to press the first film tape on the film transport table 221. The film cutting assembly 222 is used to cut the first film tape into a first film strip group when the film pressing part 223 presses the first film tape.

[0061] In an embodiment of the present application, the second film cutting mechanism 320 may include a film cutting body, a first film carrier 321, a second film carrier 322 and a film transport hand 323. Specifically, the film cutting body is used to cut the second film strip into a second film strip group, and the film transport hand 323 is used to transport the second film strip group from the film cutting body to the first film carrier 321 or the second film carrier 322. The second distance film laminating mechanism 310 includes a first distance film grabbing hand 313 and a second distance film grabbing hand 314. The first distance film grabbing hand 313 is used to grab the second film strip group carried on the first film carrier 321 and lay it on the first area of ​​the protective plate located at the second workstation. The second distance film grabbing hand 314 is used to grab the second film strip group carried on the second film carrier 322 and lay it on the second area of ​​the protective plate located at the second workstation, wherein the first area does not overlap with the second area.

[0062] Due to the large size of the protective plate, if the second distance film sticking mechanism 310 carries the film strip as a whole, the film strip is long and prone to skewness, which causes the film strip to be easily positionally deviated or skewed after being laid. In order to avoid this situation, the second film strip group is transported to the first distance film grabbing hand 313 and the second distance film grabbing hand 314 in sequence or at the same time through the film transporting hand 323. The first distance film grabbing hand 313 grabs the second film strip group carried on the first film carrier 321 and lays it on the protective plate at the second station. In the first area, the second-distance film grabber 314 grabs the second film strip group carried on the second film carrier 322 and lays it on the second area of ​​the protective plate located at the second workstation. Since the first area and the second area do not overlap, the second film cutting mechanism 320 can prepare a shorter second film strip group, which is beneficial to ensure the handling accuracy of the second film strip group by the first-distance film grabber 313 and the second-distance film grabber 314, and further beneficial to the film laying accuracy of the first-distance film grabber 313 and the second-distance film grabber 314.

[0063] In addition, the film cutting body can be a combination of a rotating motor and a slitting circular knife group, a telescopic cylinder and a blade combination, etc., and this application does not impose any restrictions on this.

[0064] In a further technical solution, the second-distance film-laminating mechanism 310 can also include a first-distance heating element 311 and a second-distance heating element 312. Specifically, the first-distance heating element 311 is used to heat the first area of ​​the protective plate located at the second workstation, and the second-distance heating element 312 is used to heat the second area of ​​the protective plate located at the second workstation.

[0065] The second film strip group on the first area and the second area can be heated by the first spacing heating element 311 and the second spacing heating element 312, so that the second film strip group located on the first area and the second area can be adhered to the protective plate. Of course, the first film strip group is also affixed to the area where the first area and the second area are combined. The first spacing heating element 311 and the second spacing heating element 312 can also heat the first film strip group, thereby further strengthening the adhesion between the first film strip group and the protective plate.

[0066] The first spacing heating element 311 and the second spacing heating element 312 can both be a composite scissor-type hinged connecting rod and a hot air gun or electric soldering iron combination provided at its hinge point, a sliding rod and multiple sliders slidingly cooperate, and a spacing belt is connected in series with multiple sliders, and the sliders are provided with a hot air gun or electric soldering iron combination and other specific structural forms, and this application does not impose any restrictions on this.

[0067] In the embodiment of the present application, both the first distance film-laminating mechanism 210 and the second distance film-laminating mechanism 310 may be provided with a heating element, and the heating element is used to heat the first film strip group or the second film strip group.

[0068] Of course, the heating element can be a contact heating element, such as a soldering iron, a heating rod and other specific structures, or it can be a non-contact heating element, such as a hot air blower, an infrared heater and other specific structures. Of course, the non-contact heating element heats the first film strip group and the second film strip group after the first interval film laminating mechanism 210 and the second interval film laminating mechanism 310 respectively lay the first film strip group and the second film strip group. The non-contact heating method is used to avoid the adhesive of the first film strip group and the second film strip group from adhering to the first interval film laminating mechanism 210 and the second interval film laminating mechanism 310, thereby further reducing the maintenance of the first interval film laminating mechanism 210 and the second interval film laminating mechanism 310.

[0069] In an embodiment of the present application, the first transmission channel 110 and the second transmission channel 120 may both include a channel body and a limit member. Specifically, the limit member is used to cooperate with the protective plate when the protective plate moves to the first station, or to cooperate with the protective plate when the protective plate moves to the second station.

[0070] In the above structure, the limiting member plays a role in correcting the positioning of the protective plate when it is in the first position or the second position.

[0071] In addition, the limiting member can be a blocking cylinder, a telescopic electric cylinder, etc., and this application does not impose any restrictions on this.

[0072] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A method for applying film to a photovoltaic module, characterized in that: The film-sticking method comprises: Cutting the first film strip into a plurality of first film strips, arranging the plurality of first film strips in an array along a first direction to form a first film strip group, driving the protective plate to move to a first station, and returning it to its original position; The first film strip group is laid out at intervals along the first direction, and then heated and glued to the protective plate located at the first work station.

2. The film-sticking method according to claim 1, characterized in that: The method includes cutting the first film strip into a plurality of first film strips, and arranging the plurality of first film strips in an array along the first direction to form a first film strip group, comprising: The plurality of first film strips are arranged in an array along the first direction to form a plurality of first film strip groups; When the protective plate moves to the first work station, one group of the plurality of first film strip groups is laid out at intervals and then heated and glued to the protective plate located at the first work station.

3. The film-sticking method according to claim 1, characterized in that: Also includes: Cutting the second film strip into a plurality of second film strips, arranging the plurality of second film strips in an array along a second direction to form a second film strip group, and driving the protective plate to move from the first station to the second station, wherein the first direction is perpendicular to the second direction; The second film strip group is laid at intervals along the second direction and then heated and glued to the protection plate located at the second work station, wherein the first film strip group and the second film strip group are vertically staggered and overlapped.

4. The film-sticking method according to claim 3, characterized in that: After laying the second film strip group at intervals along the second direction, the second film strip group is heated and pasted on the protective plate located at the second station, and further comprising: When at least one of the first film carrier area and the second film carrier area is in an empty state, the second film strip group is transferred to at least one of the first film carrier area and the second film carrier area, wherein the first film carrier area and the second film carrier area are spaced apart along the first direction; The second film strip group in the first film carrier area is laid out at intervals along the second direction and then heated and glued to the first area of ​​the protective plate located at the second workstation. The second film strip group in the second film carrier area is laid out at intervals along the second direction and then heated and glued to the second area of ​​the protective plate located at the second workstation, wherein the first area and the second area do not overlap.

5. A film laminating system, used to implement the film laminating method described in any one of claims 1 to 4, characterized in that: include: a first transmission channel (110), wherein the first transmission channel (110) is used to drive the protective plate to move to the first station; a first distance film-laminating mechanism (210), the first distance film-laminating mechanism (210) being used to lay the first film strip group at intervals along a first direction and then heat and paste it on the protective plate located at the first station; A first film cutting mechanism (220), the first film cutting mechanism (220) is used to cut the first film tape into the plurality of first film strips, the plurality of first film strips are arranged in an array along a first direction to form a first film strip group, and are transported to the first distance film laminating mechanism (210); A first film supply mechanism (230), wherein the first film supply mechanism (230) is used to deliver the first film tape to the first film cutting mechanism (220).

6. The film-sticking system according to claim 5, characterized in that: The first film cutting mechanism (220) is used to cut the first film tape into multiple groups of the first film strips. When the first transmission channel (110) drives the protective plate to move to the first work station, the first spacing film pasting mechanism (210) lays one group of the multiple groups of the first film strips at a distance and heats and pastes it on the protective plate located at the first work station.

7. The film-sticking system according to claim 5, characterized in that: It also includes a second conveying channel (120), a second distance film-laminating mechanism (310), a second film cutting mechanism (320) and a second film supply mechanism (330), wherein the second conveying channel (120) is used to drive the protective plate to move to the second work station, the second distance film-laminating mechanism (310) is used to lay the second film strip group at intervals along the second direction, and heat and stick them on the protective plate located at the second work station; the second film cutting mechanism (320) is used to cut the second film strip into a plurality of second film strips, and the plurality of second film strips are arranged in an array along the second direction to form the second film strip group, and are transported to the second distance film-laminating mechanism (310); the second film supply mechanism (330) is used to transport the second film strip to the second film cutting mechanism (320).

8. The film-sticking system according to claim 7, characterized in that: The second film cutting mechanism (320) includes a film cutting body, a first film carrier (321), a second film carrier (322) and a film transport hand (323), the film cutting body is used to cut the second film strip into the second film strip group, the film transport hand (323) is used to transport the second film strip group from the film cutting body to the first film carrier (321) or the second film carrier (322), the second distance film laminating mechanism (310) includes a first distance film grabbing hand (313) and a second distance film grabbing hand (314), the first distance film grabbing hand (313) is used to grab the second film strip group carried on the first film carrier (321) and lay it on the first area of ​​the protective plate located at the second station, the second distance film grabbing hand (314) is used to grab the second film strip group carried on the second film carrier (322) and lay it on the second area of ​​the protective plate located at the second station, wherein the first area does not overlap with the second area.

9. The film-sticking system according to claim 8, characterized in that: The second distance film laminating mechanism (310) further includes a first distance heating element (311) and a second distance heating element (312), wherein the first distance heating element (311) is used to heat the first area of ​​the protective plate located at the second station, and the second distance heating element (312) is used to heat the second area of ​​the protective plate located at the second station.

10. The film-sticking system according to claim 7, characterized in that: The first distance film-laminating mechanism (210) and the second distance film-laminating mechanism (310) are both provided with a heating element, and the heating element is used to heat the first film strip group or the second film strip group.

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