Lamination system and lamination method for photovoltaic glass

Abstract

The present invention belongs to the technical field of electrical components, and in particular relates to a lamination system and a lamination method for photovoltaic glass, wherein the lamination system for photovoltaic glass comprises: a control module configured to control a heating device to heat the photovoltaic glass; a covering device comprising: a plurality of guide posts, and a driving mechanism electrically connected to the control module; a ring body is provided on the outer wall of the guide post; the control module is configured to control the driving mechanism to drive the guide post to rise, so that after the guide post passes through the heating device, the corresponding bus bar protrusion is completely covered by the recess, and the ring body blocks the lead portion on the photovoltaic glass, so that an annular cavity is formed between the ring body and the battery cell to accommodate the melted adhesive film after heating, thereby achieving the goal that when the adhesive film is melted by heating, the melted adhesive film can be blocked in the annular cavity, so that the EVA adhesive is evenly covered on the inner wall of the annular cavity to avoid the existence of exposed parts on the inner wall of the lead portion.

Description

Technical Field

[0001] The present invention belongs to the technical field of electrical components, and specifically relates to a method or device specifically suitable for manufacturing or processing electrical devices or their components, and more particularly to a laminating system and a laminating method for photovoltaic glass. Background Art

[0002] Photovoltaic glass needs to be laminated during the preparation process. In related technologies, holes are dug in the EVA film at the lead holes of the corresponding backplane glass before lamination to avoid the protrusions at the ends of the busbars. However, due to the thermal shrinkage of the EVA film, the film at the edge of the lead hole will shrink, resulting in empty glue at the edge of the lead hole. Moreover, since the EVA film at the lead hole is removed, the inner wall of the lead hole will not be covered with glue and will be exposed. After subsequent wiring and installation of the fixing frame, it will be filled with sealant to ensure insulation. However, there is an exposed part on the inner wall of the lead hole. After the sealant is filled, part of the inner wall of the lead hole is adhered to the sealant and part is adhered to the EVA glue. Since the sealant and EVA glue are glues of different properties, this splicing and sealing method will lead to a decrease in electrical insulation.

[0003] Therefore, due to the technical problem of uneven adhesion of EVA glue on the inner wall of the lead hole of photovoltaic glass, it is necessary to design a lamination system and lamination method for photovoltaic glass.

[0004] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the Invention

[0005] The embodiments of the present disclosure at least provide a lamination system and a lamination method for photovoltaic glass.

[0006] In a first aspect, an embodiment of the present disclosure provides a photovoltaic glass lamination system, comprising:

[0007] The heating device and the coating device are in a vacuum environment;

[0008] a control module, and a heating device and a covering device electrically connected to the control module;

[0009] The heating device carries the photovoltaic glass, and the control module is configured to control the heating device to heat the photovoltaic glass, and control the covering device to cover the bus bar protrusion in the photovoltaic glass when the heating device is heating; wherein

[0010] The covering device includes: a plurality of guide posts and a driving mechanism electrically connected to the control module;

[0011] A ring body is provided on the outer wall of the guide column;

[0012] The guide post is vertically arranged on the driving mechanism, and the guide post corresponds to the bus bar protrusion in the photovoltaic glass;

[0013] The top surface of the guide column is provided with a recess adapted to the busbar protrusion;

[0014] The control module is configured to control the driving mechanism to drive the guide post to rise, so that after the guide post passes through the heating device, the corresponding bus bar protrusion is completely covered by the recess;

[0015] At this time, the ring body blocks the gap between the lead portion and the guide column in the photovoltaic glass, so that an annular cavity for accommodating the melted adhesive film after heating is formed between the ring body and the solar cell.

[0016] In an optional embodiment, the driving mechanism includes: a driving source electrically connected to the control module;

[0017] The driving source is connected to a lifting plate, and the guide column is arranged on a side of the lifting plate close to the photovoltaic glass;

[0018] The control module is configured to control the driving source to drive the lifting plate to rise, so that after the guide column passes through the heating device, the corresponding bus bar protrusion is completely covered by the recess, so that the bus bar protrusion is completely separated from the adhesive film in the photovoltaic glass;

[0019] The outer diameter of the ring body is adapted to the lead portion provided on the photovoltaic glass, so as to block the lead portion when the recess completely covers the corresponding bus bar protrusion.

[0020] In an optional embodiment, the photovoltaic glass includes: a pair of back glass arranged up and down;

[0021] A battery sheet is provided between the two back glass panels, and a plurality of bus bar protrusions are provided on the battery sheet;

[0022] Adhesive films are provided between the battery cell and the two back glass panels;

[0023] One of the adhesive films is provided with a hole corresponding to the bus bar protrusion, and the diameter of the hole is larger than the diameter of the bus bar protrusion;

[0024] A lead portion corresponding to the bus bar protrusion is provided on one of the back glass panels, and the lead portion penetrates the back glass panel along the thickness direction of the back glass panel, so that the bus bar protrusion passes through the hole and is located in the corresponding lead portion;

[0025] During the heating process of the photovoltaic glass, the back panel glass with the lead portion is positioned downward.

[0026] In an optional embodiment, the heating device includes: a silicone heating plate electrically connected to the control module;

[0027] The silica gel heating plate carries the photovoltaic glass;

[0028] The silica gel heating plate is provided with a through hole corresponding to the lead portion, and the inner diameter of the through hole is adapted to the inner diameter of the lead portion;

[0029] The lifting plate is located below the silica gel heating plate;

[0030] The control module is configured to control the silicone heating plate to heat the photovoltaic glass to melt the adhesive film, and control the driving source to drive the lifting plate to rise, so that the guide column passes through the through hole and extends into the lead part, the top surface of the guide column contacts the battery cell, and the recess completely covers the corresponding bus bar protrusion. At this time, the adhesive film is completely separated from the bus bar protrusion, and the outer wall of the upper ring body of the guide column contacts the inner wall of the through hole. A ring cavity is formed between the ring body and the battery cell to accommodate the melted adhesive film after heating.

[0031] In an optional embodiment, the heating device further comprises: a plurality of support bars;

[0032] The support bars are arranged side by side, and the silica gel heating plate is mounted on the top surface of the support bars;

[0033] The lifting plate in the driving mechanism is arranged between a pair of supporting bars.

[0034] In an optional embodiment, the material of the guide column is the same as that of the silicone heating plate, so that heat is transferred through the guide column when the silicone heating plate is heating.

[0035] In a second aspect, the present disclosure further provides a lamination method using the above-mentioned photovoltaic glass lamination system, comprising:

[0036] The control module controls the heating device to heat the photovoltaic glass, and controls the covering device to cover the bus bar protrusions in the photovoltaic glass when the heating device is heating;

[0037] The control module controls the driving mechanism to drive the guide column to rise, so that after the guide column passes through the heating device, the corresponding bus bar protrusion is completely covered by the recess, and the ring body blocks the lead part on the photovoltaic glass, so that an annular cavity is formed between the ring body and the battery cell to accommodate the melted adhesive film after heating.

[0038] The beneficial effects of the present invention are as follows: the laminating system of the photovoltaic glass comprises: a control module, and a heating device and a cladding device electrically connected to the control module; the heating device carries the photovoltaic glass, the control module is configured to control the heating device to heat the photovoltaic glass, and control the cladding device to clad the bus bar protrusions in the photovoltaic glass when the heating device is heating; wherein the cladding device comprises: a plurality of guide posts, and a driving mechanism electrically connected to the control module; a ring body is provided on the outer wall of the guide post; the guide post is vertically arranged on the driving mechanism, and the guide post is provided on the driving mechanism. The guide column corresponds to the bus bar protrusion in the photovoltaic glass; the top surface of the guide column is provided with a recess adapted to the bus bar protrusion; the control module is configured to control the driving mechanism to drive the guide column to rise, so that after the guide column passes through the heating device, the corresponding bus bar protrusion is completely covered by the recess, and the ring body blocks the lead part on the photovoltaic glass, so that an annular cavity is formed between the ring body and the battery cell to accommodate the melted adhesive film after heating, thereby achieving the goal that when the adhesive film is melted by heating, the melted adhesive film can be blocked in the annular cavity, so that the EVA glue is evenly covered on the inner wall of the annular cavity to avoid exposed parts on the inner wall of the lead part.

[0039] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited herein and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 A schematic structural diagram of a photovoltaic glass lamination system provided in an embodiment of the present disclosure;

[0043] Figure 2 A schematic diagram of the internal structure of a photovoltaic glass lamination system provided in an embodiment of the present disclosure;

[0044] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0045] Figure 4A schematic structural diagram of a coating device provided in an embodiment of the present disclosure;

[0046] Figure 5 A schematic diagram of a state in which a covering device according to an embodiment of the present disclosure covers a busbar protrusion;

[0047] Figure 6 A schematic diagram of a photovoltaic glass lamination system according to an embodiment of the present disclosure.

[0048] In the picture:

[0049] 1 heating device, 11 silicone heating plate, 12 through hole, 13 support bar;

[0050] 2 covering device, 21 guide column, 22 ring body, 23 recess, 24 lifting plate, 25 annular cavity;

[0051] 3 base, 31 cover;

[0052] 4 photovoltaic glass, 41 back glass, 42 lead portion, 43 battery cell, 44 bus bar protrusion, 45 adhesive film, 46 hole. DETAILED DESCRIPTION

[0053] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0054] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Thus, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Instead, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0055] Photovoltaic glass needs to be laminated during the preparation process, and the adhesive film melts and flows evenly to fill the space between the photovoltaic glass and the cell. This ensures electrical insulation and mechanical fixation, but for the battery cell busbar area, the position corresponding to the busbar and the backplane glass through-hole needs to be left vacant so that its end can be connected to the junction box. In the related art, a hole is dug in the EVA film at the corresponding backplane glass lead hole before lamination to avoid the bulge at the end of the busbar. However, the inventor found that due to the thermal shrinkage of the EVA film, the film at the edge of the lead hole will shrink, resulting in empty glue at the edge of the lead hole. Moreover, since the EVA film at the lead hole is removed, the inner wall of the lead hole will not be covered with glue and will be exposed. After subsequent wiring and fixing frame installation, it will be filled with sealant to ensure insulation. However, there is an exposed part on the inner wall of the lead hole. After the sealant is filled, part of the inner wall of the lead hole is adhered to the sealant and part is adhered to the EVA glue. Since the sealant and EVA glue are glues of different properties, this splicing and sealing method will lead to a decrease in electrical insulation.

[0056] The defects in the above solutions are the results obtained by the inventors after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present disclosure in this article should be the contributions made by the inventors to the present disclosure during the disclosure process.

[0057] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0058] like Figure 1 、 Figure 4 and Figure 5As shown, at least one disclosed embodiment provides a lamination system for photovoltaic glass 4, comprising: a control module, and a heating device 1 and a covering device 2 electrically connected to the control module; the heating device 1 and the covering device 2 are in a vacuum environment; the heating device 1 carries the photovoltaic glass 4, and the control module is configured to control the heating device 1 to heat the photovoltaic glass 4, and control the covering device 2 to cover the bus bar protrusions 44 in the photovoltaic glass 4 when the heating device 1 is heating; wherein the covering device 2 comprises: a plurality of guide columns 21, and a driving mechanism electrically connected to the control module; a ring body 22 is provided on the outer wall of the guide column 21; the guide column 21 is vertically arranged on the driving mechanism, and the guide column 21 is connected to the bus bar protrusions 44 in the photovoltaic glass 4 The guide column 21 is provided with a recess 23 adapted to the bus bar protrusion 44 on the top surface; the control module is configured to control the driving mechanism to drive the guide column 21 to rise, so that after the guide column 21 passes through the heating device 1, the corresponding bus bar protrusion 44 is completely covered by the recess 23; at this time, the ring body 22 blocks the column gap between the middle lead portion 42 on the photovoltaic glass 4 and the guide column 21, so that an annular cavity 25 for accommodating the melted adhesive film 45 after heating is formed between the ring body 22 and the battery cell 43, so as to accommodate the melted adhesive film 45 after heating, thereby achieving the goal that when the adhesive film 45 is melted by heating, the melted adhesive film 45 can be blocked in the annular cavity 25, so that the EVA glue is evenly covered on the inner wall of the annular cavity 25 to avoid the presence of exposed parts on the inner wall of the lead portion 42.

[0059] In this embodiment, if Figure 6 As shown, the control module is electrically connected to the heating device 1 and the covering device 2.

[0060] In this embodiment, the heating device 1 can heat to melt the adhesive film 45, and the melted adhesive film 45 flows into the annular cavity 25, but is blocked by the ring body 22 and cannot drip, ensuring that the melted adhesive film 45 can fill the annular cavity 25, so that the inner wall of the annular cavity 25 is evenly covered with the melted adhesive film 45, that is, the inner wall of the lead part 42 can be evenly covered with adhesive (melted adhesive film 45), avoiding the existence of exposed parts on the inner wall of the lead part 42, so that when the sealant is subsequently filled, the inner wall of the lead part 42 is only covered with the melted adhesive film 45 and will not contact the sealant, thereby ensuring electrical insulation.

[0061] like Figure 3 and Figure 4As shown, in an optional embodiment, the driving mechanism includes: a driving source electrically connected to the control module; a lifting plate 24 is connected to the driving source, and the guide column 21 is arranged on the side of the lifting plate 24 close to the photovoltaic glass 4; the control module is configured to control the driving source to drive the lifting plate 24 to rise, so that after the guide column 21 passes through the heating device 1, the corresponding bus bar protrusion 44 is completely covered by the recess 23, so that the bus bar protrusion 44 is completely separated from the adhesive film 45 in the photovoltaic glass 4; the outer diameter of the ring body 22 is adapted to the lead portion 42 opened on the photovoltaic glass 4, so as to block the lead portion 42 when the recess 23 completely covers the corresponding bus bar protrusion 44.

[0062] In this embodiment, the driving source can be a servo motor or a hydraulic cylinder, etc., and all the guide posts 21 can be raised and lowered synchronously through the lifting plate 24. The moving direction of the guide posts 21 is as follows: Figure 4 As shown in F.

[0063] In this embodiment, the bus bar protrusion 44 can be completely covered by the recess 23 , and after the adhesive film 45 melts, the melted adhesive film 45 can be prevented from adhering to the bus bar protrusion 44 .

[0064] In an optional embodiment, the photovoltaic glass 4 includes: a pair of back-panel glasses 41 arranged up and down; a battery cell 43 is arranged between the two back-panel glasses 41, and a number of bus bar protrusions 44 are arranged on the battery cell 43; an adhesive film 45 is arranged between the battery cell 43 and the two back-panel glasses 41; one of the adhesive films 45 is provided with a hole 46 corresponding to the bus bar protrusion 44, and the diameter of the hole 46 is larger than the diameter of the bus bar protrusion 44; one of the back-panel glasses 41 is provided with a lead portion 42 corresponding to the bus bar protrusion 44, and the lead portion 42 passes through the back-panel glass 41 along the thickness direction of the back-panel glass 41, so that the bus bar protrusion 44 is located in the corresponding lead portion 42 after passing through the hole 46; during the heating process of the photovoltaic glass 4, the back-panel glass 41 with the lead portion 42 is arranged lower.

[0065] In this embodiment, some structures in the photovoltaic glass 4 are as follows Figure 4 As shown, in Figure 4 The adhesive film 45 and the back glass 41 on the other side of the middle cell 43 are not shown.

[0066] In this embodiment, the adhesive film 45 can be an EVA film, and the diameter of the hole 46 can be 1.1 times that of the bus bar protrusion 44, so that there is a gap between the inner wall of the hole 46 and the edge of the bus bar protrusion 44. The gap can adapt to the wall thickness of the recess 23 on the top surface of the guide column 21, so that when the recess 23 covers the bus bar protrusion 44, there will be no melted adhesive film 45 contacting the bus bar protrusion 44. When wiring is performed subsequently, this part of the gap will be covered by the lead to avoid exposed parts on the lead part 42 of the battery cell 43.

[0067] In this embodiment, the lead portion 42 is in a hole shape on the corresponding back glass 41 , so that the bus bar protrusion 44 can extend into the lead portion 42 .

[0068] In an optional embodiment, the heating device 1 includes: a silicone heating plate 11 electrically connected to a control module; the silicone heating plate 11 carries the photovoltaic glass 4; a through hole 12 corresponding to the lead portion 42 is opened on the silicone heating plate 11, and the inner diameter of the through hole 12 is adapted to the inner diameter of the lead portion 42; the lifting plate 24 is located below the silicone heating plate 11; the control module is configured to control the silicone heating plate 11 to heat the photovoltaic glass 4 to melt the adhesive film 45, and control the driving source to drive the lifting plate 24 to rise, so that the guide column 21 passes through the through hole 12 and extends into the lead portion 42, the top surface of the guide column 21 contacts the battery cell 43, and the recess 23 completely covers the corresponding bus bar protrusion 44. At this time, the adhesive film 45 is completely separated from the bus bar protrusion 44, and the outer wall of the ring body 22 on the guide column 21 contacts the inner wall of the through hole 12. A ring cavity 25 is formed between the ring body 22 and the battery cell 43 to accommodate the melted adhesive film 45 after heating.

[0069] In this embodiment, when the recess 23 contacts the battery cell 43 and covers the bus bar protrusion 44, the top surface of the ring body 22 can be flush with or slightly lower than the bottom surface of the lead portion 42, so that the annular cavity 25 can completely include the lead portion 42, ensuring that the inner wall of the lead portion 42 is evenly covered with the melted adhesive film 45.

[0070] In this embodiment, when the recess 23 contacts the battery cell 43 and covers the bus bar protrusion 44, the distance between the outer wall of the guide column 21 and the inner wall of the lead portion 42 is uniform up and down, so that when the annular cavity 25 accommodates the melted adhesive film 45, the adhesive film 45 covers the inner wall of the lead portion 42 more evenly.

[0071] like Figure 2 and Figure 3 As shown, in an optional embodiment, the heating device 1 further includes: a plurality of support bars 13; the support bars 13 are arranged side by side, and the silicone heating plate 11 is mounted on the top surface of the support bars 13; and the lifting plate 24 in the driving mechanism is arranged between a pair of support bars 13.

[0072] In an optional embodiment, the material of the guide column 21 is the same as that of the silicone heating plate 11 , so that heat is transferred through the guide column 21 when the silicone heating plate 11 is heated.

[0073] In this embodiment, the material of the guide post 21 is the same as that of the silicone heating plate 11 to ensure uniform heat transfer during the heating process.

[0074] In this embodiment, the heating device 1 is covered by a cover plate 31 provided on the base 3 to prevent heat from diffusing outwards.

[0075] In this embodiment, after the heating device 1 melts the adhesive film 45, the environment of the photovoltaic glass 4 is vacuumed using the method of the prior art. At this time, the guide column 21 is still inserted into the lead portion 42 to prevent the melted adhesive film 45 from dripping from the lead portion 42, ensuring that the inner wall of the lead portion 42 is evenly covered with adhesive, and avoiding the existence of exposed parts on the inner wall of the lead portion 42. The air in the melted adhesive film 45 is removed by vacuuming, and the movement of the melted adhesive film 45 is assisted. After the vacuuming is completed, the photovoltaic glass 4 is pressurized using the method of the prior art to complete the press-fitting. The guide column 21 will not be removed from the lead portion 42 until the melted adhesive film 45 solidifies again. The outer wall of the guide column 21 can be coated with a fluorocarbon coating to avoid adhesion to the melted adhesive film 45, so that the guide column 21 can be smoothly removed after the melted adhesive film 45 solidifies again.

[0076] At least one other disclosed embodiment also provides a wrapping device 2 used in a laminating system of the photovoltaic glass 4 as described above, comprising: a plurality of guide columns 21, and a driving mechanism electrically connected to the control module; a ring body 22 is provided on the outer wall of the guide column 21; the guide column 21 is vertically arranged on the driving mechanism, and the guide column 21 corresponds to the bus bar protrusion 44 in the photovoltaic glass 4; a recess 23 adapted to the bus bar protrusion 44 is provided on the top surface of the guide column 21; the control module is configured to control the driving mechanism to drive the guide column 21 to rise, so that after the guide column 21 passes through the heating device 1, the corresponding bus bar protrusion 44 is completely covered by the recess 23, and the ring body 22 blocks the lead portion 42 on the photovoltaic glass 4, so that an annular cavity 25 is formed between the ring body 22 and the battery cell 43 to accommodate the melted adhesive film 45 after heating.

[0077] In an optional embodiment, the driving mechanism includes: a driving source electrically connected to the control module; a lifting plate 24 is connected to the driving source, and the guide column 21 is arranged on the side of the lifting plate 24 close to the photovoltaic glass 4; the control module is configured to control the driving source to drive the lifting plate 24 to rise, so that after the guide column 21 passes through the heating device 1, the corresponding bus bar protrusion 44 is completely covered by the recess 23, so that the bus bar protrusion 44 is completely separated from the adhesive film 45 in the photovoltaic glass 4; the outer diameter of the ring body 22 is adapted to the lead portion 42 opened on the photovoltaic glass 4, so as to block the lead portion 42 when the recess 23 completely covers the corresponding bus bar protrusion 44.

[0078] At least one other disclosed embodiment also provides a lamination method for the lamination system using the above-mentioned photovoltaic glass 4, including: the control module controls the heating device 1 to heat the photovoltaic glass 4, and controls the covering device 2 to cover the bus bar protrusion 44 in the photovoltaic glass 4 when the heating device 1 is heating; the control module controls the driving mechanism to drive the guide column 21 to rise, so that after the guide column 21 passes through the heating device 1, the corresponding bus bar protrusion 44 is completely covered by the recess 23, and the ring body 22 blocks the lead portion 42 on the photovoltaic glass 4, so that an annular cavity 25 is formed between the ring body 22 and the battery cell 43 to accommodate the melted adhesive film 45 after heating.

[0079] In summary, the laminating system of the photovoltaic glass 4 includes: a control module, and a heating device 1 and a covering device 2 electrically connected to the control module; the heating device 1 carries the photovoltaic glass 4, and the control module is configured to control the heating device 1 to heat the photovoltaic glass 4, and control the covering device 2 to cover the bus bar protrusion 44 in the photovoltaic glass 4 when the heating device 1 is heating; wherein the covering device 2 includes: a plurality of guide columns 21, and a driving mechanism electrically connected to the control module; a ring body 22 is provided on the outer wall of the guide column 21; the guide column 21 is vertically arranged on the driving mechanism, and the guide column 21 is connected to the bus bar protrusion 44 in the photovoltaic glass 4 The guide column 21 has a top surface provided with a recess 23 adapted to the bus bar protrusion 44; the control module is configured to control the driving mechanism to drive the guide column 21 to rise, so that after the guide column 21 passes through the heating device 1, the corresponding bus bar protrusion 44 is completely covered by the recess 23, and the ring body 22 blocks the lead portion 42 on the photovoltaic glass 4, so that an annular cavity 25 is formed between the ring body 22 and the battery cell 43 to accommodate the melted adhesive film 45 after heating, so that the melted adhesive film 45 can be blocked in the annular cavity 25 when the adhesive film 45 is melted by heating, so that the inner wall of the annular cavity 25 is evenly covered with EVA glue to avoid the existence of exposed parts on the inner wall of the lead portion 42.

[0080] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0081] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used herein unless expressly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0082] Spatially relative terms, such as "inside," "outside," "below," "beneath," "below," "above," "upper," etc., may be used herein to describe the relationship of one element or feature to another element or feature as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures were turned over, elements described as "below" or "beneath" other elements or features would be oriented "above" the other elements or features. Thus, the example term "below" can encompass both above and below orientations.

[0083] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A photovoltaic glass lamination system, characterized in that: include: A control module, and a heating device (1) and a coating device (2) electrically connected to the control module; The heating device (1) and the coating device (2) are in a vacuum environment; The heating device (1) carries the photovoltaic glass (4); The control module is configured to control the heating device (1) to heat the photovoltaic glass (4), and to control the covering device (2) to cover the bus bar protrusion (44) in the photovoltaic glass (4) during heating; Wherein, the coating device (2) comprises: A plurality of guide columns (21), and a driving mechanism electrically connected to the control module; wherein, A ring body (22) is provided on the outer wall of the guide column (21); The guide column (21) is vertically arranged on the driving mechanism, and the guide column (21) corresponds to the bus bar protrusion (44) in the photovoltaic glass (4); The top surface of the guide column (21) is provided with a recess (23) adapted to the busbar protrusion (44); The control module is further configured to control the driving mechanism to drive the guide column (21) to rise, so that after the guide column (21) passes through the heating device (1), the corresponding bus bar protrusion (44) is covered by the recess (23); At this time, the ring body (22) blocks the gap between the lead portion (42) and the guide column (21) in the photovoltaic glass (4), so that an annular cavity (25) for accommodating the heated and melted adhesive film (45) is formed between the ring body (22) and the battery cell (43).

2. The photovoltaic glass lamination system according to claim 1, wherein: The driving mechanism includes: a driving source electrically connected to the control module; A lifting plate (24) is connected to the driving source, and the guide column (21) is arranged on a side of the lifting plate (24) close to the photovoltaic glass (4); The control module is configured to control the driving source to drive the lifting plate (24) to rise, so that after the guide column (21) passes through the heating device (1), the corresponding bus bar protrusion (44) is completely covered by the recess (23), so that the bus bar protrusion (44) is completely separated from the adhesive film (45) in the photovoltaic glass (4); The outer diameter of the ring body (22) is adapted to the lead portion (42) provided on the photovoltaic glass (4), so as to block the lead portion (42) when the recess (23) completely covers the corresponding bus bar protrusion (44).

3. The photovoltaic glass lamination system according to claim 1, wherein: The photovoltaic glass (4) comprises: a pair of back plate glasses (41) arranged one above the other; A battery sheet (43) is provided between the two back glass panels (41), and a plurality of bus bar protrusions (44) are provided on the battery sheet (43); Adhesive films (45) are provided between the battery cell (43) and the two back glass panels (41); One of the adhesive films (45) is provided with a hole (46) corresponding to the bus bar protrusion (44), and the diameter of the hole (46) is larger than the diameter of the bus bar protrusion (44); A lead portion (42) corresponding to the bus bar protrusion (44) is provided on one of the back plate glasses (41), and the lead portion (42) penetrates the back plate glass (41) along the thickness direction of the back plate glass (41), so that the bus bar protrusion (44) is located in the corresponding lead portion (42) after passing through the hole (46); During the heating process of the photovoltaic glass (4), the back plate glass (41) provided with the lead portion (42) is positioned downward.

4. The photovoltaic glass lamination system according to claim 2, wherein: The heating device (1) comprises: a silica gel heating plate (11) electrically connected to the control module; The silica gel heating plate (11) carries the photovoltaic glass (4); The silica gel heating plate (11) is provided with a through hole (12) corresponding to the lead portion (42), and the inner diameter of the through hole (12) is adapted to the inner diameter of the lead portion (42); The lifting plate (24) is located below the silica gel heating plate (11); The control module is configured to control the silica gel heating plate (11) to heat the photovoltaic glass (4) so that the adhesive film (45) melts, and to control the driving source to drive the lifting plate (24) to rise so that the guide column (21) passes through the through hole (12) and extends into the concave portion of the lead portion (42).

5. The photovoltaic glass lamination system according to claim 4, characterized in that: The heating device (1) further comprises: a plurality of support bars (13); The support bars (13) are arranged side by side, and the silica gel heating plate (11) is mounted on the top surface of the support bars (13); The lifting plate (24) in the driving mechanism is arranged between a pair of support bars (13).

6. The photovoltaic glass lamination system according to claim 4, wherein: The material of the guide column (21) is the same as that of the silica gel heating plate (11), so that heat is transferred through the guide column (21) when the silica gel heating plate (11) is heated.

7. A laminating method using the laminating system of photovoltaic glass according to claim 1, characterized in that: include: The control module controls the heating device (1) to heat the photovoltaic glass (4), and controls the covering device (2) to cover the bus bar protrusion (44) in the photovoltaic glass (4) when the heating device (1) is heating; The control module controls the driving mechanism to drive the guide column (21) to rise, so that after the guide column (21) passes through the heating device (1), the corresponding bus bar protrusion (44) is completely covered by the recess (23), and the ring body (22) blocks the lead portion (42) on the photovoltaic glass (4), so that an annular cavity (25) is formed between the ring body (22) and the battery cell (43) to accommodate the melted adhesive film (45) after heating.

Images