A kind of cell sheet gap reflective film pasting device and pasting method

Abstract

The present invention discloses a reflective film pasting device and pasting method for a cell sheet gap, which comprises: after unfolding a roll of reflective film, cutting it into a plurality of strip reflective films according to a set width; placing a group of strip reflective films into a group of reflective film carrier strips, wherein a bearing groove is provided in the reflective film carrier strips, and a perforation is provided at the bottom of the bearing groove; after the reflective film carrier strips carry the strip reflective film, they move to the reflective film pasting station, unfold them at variable intervals, and the unfolded reflective film carrier strips jointly form a support platform; two layers of glass are moved to the reflective film pasting station with the reflective film pasting surface facing downward, and are placed on the support platform; a plurality of spot ironing components are provided below the support platform, and the reflective film is pasted to the lower surface of the two layers of glass to complete the pasting of the reflective film. The present invention directly completes the automatic pasting of the reflective film on the lower surface of the glass, so that there is no need to flip 180 degrees during the subsequent glass bonding, and at the same time, rolling the glass surface is avoided, which greatly improves the production efficiency and product quality.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic assembly production, and in particular relates to a device and a method for pasting a reflective film between battery cells. Background Art

[0002] As a clean and renewable energy source, solar energy can be efficiently converted into electrical energy, which not only reduces dependence on non-renewable energy sources such as oil and coal, but also reduces environmental pollution and ecological damage. Therefore, how to improve the power generation capacity of photovoltaic modules has always been the direction of continuous research in the photovoltaic industry.

[0003] In the existing photovoltaic module production, one method used during the second glass bonding is to screen print white porcelain strips on the glass. After the glass bonding, the white porcelain strips are located at the gaps between the cells and the cell strings, so that the light energy irradiated at the gaps between the cell modules is reflected to the glass plate, and then reflected to the cell modules through the glass plate, so as to fully utilize the light energy at the gaps between the cell modules and improve the power generation. However, screen printing white porcelain strips on the glass will make the glass easy to crack and will also easily cause the cell to crack.

[0004] Patent CN117727818B in the prior art discloses an automatic film pasting device for reflective films in the gaps of photovoltaic cell modules, which pastes a number of reflective films on the glass to be combined corresponding to the gaps between the cell strings, and then the glass pasted with reflective films is transported to the glass combination station, and then flipped 180° for glass combination operation. Although this device provides a new way to set the reflective film, avoiding the problem of glass bursting caused by the original silk-screen printing method, the glass still needs to be flipped 180° when it is combined. On the one hand, the flipping process requires a large space, and on the other hand, there is a large risk of falling during the flipping action. Therefore, the flipping process needs to be carried out slowly, which reduces the efficiency of the glass combination operation; in addition, there is a risk of the reflective film loosening, falling off or shifting during the glass flipping process, which affects the product quality; during the process of pasting the reflective film, the roller needs to roll on the glass surface to form a downward pressure on the glass surface, which can easily damage the glass if not careful.

[0005] Therefore, it is necessary to provide a new cell gap reflective film pasting device and pasting method to solve the above technical problems. Summary of the invention

[0006] One of the main purposes of the present invention is to provide a method for pasting reflective film between battery cells, which can automatically paste the reflective film directly on the lower surface of the glass, so that there is no need to flip it 180 degrees during the subsequent glass bonding, and at the same time avoid rolling the glass surface, thereby greatly improving production efficiency and product quality.

[0007] The present invention achieves the above-mentioned purpose through the following technical scheme: a method for pasting a reflective film between battery cells, which comprises the following steps:

[0008] S1, unrolling the roll reflective film and feeding it, cutting it into strips according to the set width to obtain a group of strip reflective films;

[0009] S2, placing the group of strip-shaped reflective film as a whole into a group of reflective film carrier strips, wherein the reflective film carrier strips are provided with a bearing groove for bearing a single strip of reflective film, and the bottom of the bearing groove is provided with a plurality of perforations;

[0010] S3, the group of reflective film carrier strips carrying the strip reflective film are moved to the reflective film pasting station, and are spread out at variable intervals according to their respective pasting positions, and all the spread reflective film carrier strips jointly form a supporting platform;

[0011] S4, the glass is moved to the reflective film pasting station with the reflective film pasting surface facing downward, and is placed on the support platform;

[0012] S5. A plurality of hot stamping components are arranged below the support platform. The hot stamping components rise through the perforations to stick all the strip-shaped reflective films to the lower surface of the glass, thereby completing the sticking of the reflective films.

[0013] Another object of the present invention is to provide a cell gap reflective film pasting device, which comprises:

[0014] A reflective film feeding unit, comprising a coil feeding mechanism, a film feeding mechanism, a first cutting mechanism for cutting the reflective film outputted by the film feeding mechanism into sheet reflective films, a receiving and conveying platform located at the output side of the film feeding mechanism and receiving the sheet reflective film, a strip receiving and receiving platform located at the output side of the receiving and conveying platform, a first adsorption and conveying mechanism for conveying the sheet reflective film from the receiving and conveying platform to the strip receiving and receiving platform, a second cutting mechanism for cutting the sheet reflective film on the strip receiving and receiving platform into a plurality of strip reflective films, and a second adsorption and conveying mechanism for adsorbing and conveying the plurality of strip reflective films to a receiving position;

[0015] A reflective film pasting unit comprises a plurality of carrier strips, a second driving module driving the carrier strips to switch between a closed state and an extended state, a plurality of hot stamping components located below the carrier strips, and a lifting mechanism driving the hot stamping components to move up and down; the carrier strips receive a group of reflective films at the material receiving position in the closed state, and then switch to the extended state to form a supporting platform after extension, and the hot stamping components pass through the carrier strips to paste the reflective film onto the glass surface located on the supporting platform.

[0016] Furthermore, the reflective film feeding unit also includes a punching mechanism, which is located between the coil feeding mechanism and the film feeding mechanism.

[0017] Furthermore, the first cutting mechanism is arranged between the film feeding mechanism and the material receiving and conveying platform, and comprises a pressing module for pressing the reflective film and a cutting module for cutting the reflective film.

[0018] Furthermore, the pressing module includes a pair of pressing strips for pressing both sides of the cutting line of the reflective film and a cylinder for driving the pair of pressing strips to move up and down; the cutting module includes a first motor, a first slide plate driven by the first motor to move horizontally perpendicular to the conveying direction of the reflective film, a second motor fixed on the first slide plate, and a first blade driven by the second motor to rotate and extended between the two pressing strips.

[0019] Furthermore, the material receiving and conveying platform includes a first material receiving plate and a conveying module embedded in the surface of the first material receiving plate.

[0020] Furthermore, the strip cutting and receiving platform includes a second receiving plate, on which a plurality of strip-shaped through grooves are arranged; the second cutting mechanism includes a third motor, a second slide plate driven by the third motor to move horizontally perpendicular to the conveying direction of the reflective film, a rotating shaft rotatably arranged on the second slide plate, a plurality of second blades fixed on the rotating shaft and extending into the strip-shaped through grooves, and a fourth motor fixed on the second slide plate and driving the rotating shaft to rotate.

[0021] Furthermore, the second adsorption and conveying mechanism includes a seventh motor, a second beam driven by the seventh motor to move parallel to the conveying direction of the reflective film, an eighth motor fixed on the second beam, a first bracket driven by the eighth motor to move up and down, and a variable-distance adsorption module arranged on the first bracket.

[0022] Furthermore, the variable distance adsorption module includes a first driving module fixed on the first bracket and a plurality of adsorption strips driven by the first driving module to achieve distance change.

[0023] Furthermore, the carrier bars include a first carrier bar and a second carrier bar located on the outermost sides, and a plurality of third carrier bars located between the first carrier bar and the second carrier bar, and all the carrier bars are slidably arranged on a plurality of pairs of slide rail modules; a second flexible connecting belt is arranged between two adjacent carrier bars, and the first carrier bar and / or the second carrier bar are driven by the second driving module to perform horizontal movement.

[0024] Furthermore, the upper surface of the carrier strip is provided with a bearing groove for bearing the strip-shaped reflective film, and the bottom of the bearing groove is provided with a plurality of through holes penetrating downward, and the plurality of through holes are distributed at intervals along the extension direction of the carrier strip; when the carrier strip is in the unfolded state, the hot stamping assembly is aligned with the through holes.

[0025] Compared with the prior art, the beneficial effects of the reflective film pasting device and pasting method for the cell cell gap of the present invention are: the reflective film is cut into a plurality of strip structures, and then placed on a group of carrier strips, and the carrier strips are provided with a spacing adjustment function. After carrying the reflective film, they are spread out according to the set spacing to form a supporting platform, and the glass to be pasted with the reflective film is directly placed on the supporting platform with its pasting surface facing downward, and then a plurality of hot stamping components corresponding to the positions of the carrier strips are used to paste the reflective film in the carrier strips onto the lower surface of the glass through the overall upward movement of the hot stamping components, thereby completing the automatic pasting of the reflective film, and after the pasting of the long-side reflective film and the short-side reflective film is completed, the glass closing operation can be directly carried out without 180-degree flipping, and the risk of hidden glass cracks existing in the original method of pasting the reflective film on the upper surface of the glass by rolling from top to bottom is avoided, thereby improving the safety of the glass when the reflective film is pasted. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the top view of the short-side reflective film pasting device according to an embodiment of the present invention;

[0027] Figure 2 It is a structural schematic diagram of a reflective film feeding unit in an embodiment of the present invention;

[0028] Figure 3 It is a partial side structural schematic diagram of a reflective film feeding unit in an embodiment of the present invention;

[0029] Figure 4 Schematic diagram of the structure of the first cutting mechanism in an embodiment of the present invention;

[0030] Figure 5 It is a partial structural schematic diagram of a reflective film feeding unit in an embodiment of the present invention;

[0031] Figure 6 It is a structural schematic diagram of a material receiving and conveying platform and a strip cutting and receiving platform in an embodiment of the present invention;

[0032] Figure 7 Schematic diagram of the exploded structure of the second cutting mechanism in the embodiment of the present invention;

[0033] Figure 8 It is a structural schematic diagram of a variable distance adsorption module in an embodiment of the present invention;

[0034] Fig. 9 This is a schematic diagram of the application scenario structure of the reflective film feeding unit in an embodiment of the present invention;

[0035] Fig.10 This is a schematic diagram of the main structure of a reflective film pasting unit in an embodiment of the present invention;

[0036] Fig.11 It is a structural schematic diagram of a reflective film receiving and transferring mechanism in an embodiment of the present invention;

[0037] Fig.12 It is a schematic diagram of a partially enlarged structure of a carrier bar in an embodiment of the present invention;

[0038] Fig.13 It is a partial enlarged structural schematic diagram of the hot point component in an embodiment of the present invention;

[0039] Fig.14 This is a schematic diagram of the application scenario structure of the reflective film pasting unit in an embodiment of the present invention;

[0040] Fig.15 It is a schematic diagram of the top view of the long side reflective film pasting device in an embodiment of the present invention;

[0041] The numbers in the figure represent:

[0042] 100-cell gap reflective film pasting equipment;

[0043] 1-reflective film pasting unit, 11-reflective film receiving and transferring mechanism, 111-carrying strip, 1111-first carrying strip, 1112-second carrying strip, 1113-third carrying strip, 1114-carrying groove, 1115-perforation, 112-second driving module, 113-slide rail module, 114-second flexible connecting belt, 115-support platform, 12-point ironing mechanism, 121-point ironing assembly, 1211-base, 1212-mounting seat, 1213-point ironing head, 122-lifting mechanism, 123-second bracket, 13-spacing adjustment mechanism;

[0044] 2-reflective film feeding unit, 21-roll material feeding mechanism, 22-film feeding mechanism, 23-first cutting mechanism, 231-pressing module, 2311-pressing strip, 2312-cylinder, 232-cutting module, 2321-first motor, 2322-first slide plate, 2323-second motor, 2324-first blade, 24-material receiving and conveying platform, 241-first material receiving plate, 2411-exhaust hole, 242-conveying module, 2421-ninth motor, 2422-conveyor belt, 25-strip material receiving platform, 251-second material receiving plate, 2511-strip through slot, 26-first adsorption and conveying mechanism , 261-fifth motor, 262-first beam, 263-sixth motor, 264-adsorption plate, 27-second cutting mechanism, 271-third motor, 272-second slide plate, 273-rotating shaft, 274-second blade, 275-fourth motor, 28-second adsorption transport mechanism, 281-seventh motor, 282-second beam, 283-eighth motor, 284-first bracket, 285-variable distance adsorption module, 2851-first driving module, 2852-adsorption bar, 28521-first adsorption bar, 28522-second adsorption bar, 28523-third adsorption bar, 29-punching mechanism. DETAILED DESCRIPTION

[0045] Embodiment 1:

[0046] This embodiment provides a method for pasting a reflective film between battery cells, which includes the following steps:

[0047] S1, unrolling the roll reflective film and feeding it, cutting it into strips according to the set width to obtain a group of strip reflective films;

[0048] S2, placing the group of strip-shaped reflective film as a whole into a group of reflective film carrier strips, wherein the reflective film carrier strips are provided with a bearing groove for bearing a single strip of reflective film, and the bottom of the bearing groove is provided with a plurality of perforations;

[0049] S3, the group of reflective film carrier strips carrying the strip reflective film are moved to the reflective film pasting station, and are spread out at variable intervals according to their respective pasting positions, and all the spread reflective film carrier strips jointly form a supporting platform;

[0050] S4, the glass is moved to the reflective film pasting station with the reflective film pasting surface facing downward, and is placed on the support platform;

[0051] S5. A plurality of hot stamping components are arranged below the support platform. The hot stamping components rise through the perforations to stick all the strip-shaped reflective films to the lower surface of the glass, thereby completing the sticking of the reflective films.

[0052] Please refer to Figure 1-Figure 15 This embodiment also provides a cell gap reflective film pasting device 100, which includes a reflective film pasting station, a reflective film pasting unit 1 arranged at the reflective film pasting station, and a reflective film feeding unit 2 for feeding the reflective film pasting unit 1.

[0053] In this embodiment, the film after the roll of reflective film is unfolded is called "reflective film", the sheet structure cut into a set length of "reflective film" is called "sheet reflective film", and the strip structure cut into a plurality of strips with a set width is called "strip reflective film".

[0054] The reflective film feeding unit 2 cuts the roll of reflective film into slender strips of reflective film of a set width, and includes a roll feeding mechanism 21, a film feeding mechanism 22, a first cutting mechanism 23 for cutting the reflective film output by the film feeding mechanism 22 into sheet-shaped reflective film, a receiving and conveying platform 24 located at the output side of the film feeding mechanism 22 and receiving the sheet-shaped reflective film, a strip-cutting receiving platform 25 located at the output side of the receiving and conveying platform 24, a first adsorption and conveying mechanism 26 for conveying the sheet-shaped reflective film from the receiving and conveying platform 24 to the strip-cutting receiving platform 25, a second cutting mechanism 27 for cutting the sheet-shaped reflective film on the strip-cutting receiving platform 25 into a plurality of strip-shaped reflective film, and a second adsorption and conveying mechanism 28 for adsorbing and conveying the plurality of strip-shaped reflective film to the reflective film pasting unit 1.

[0055] The coil loading mechanism 21 is mainly used to realize the replacement and unwinding of the coil, and its structure can adopt the structure in the prior art, which will not be described in detail in this embodiment.

[0056] The film feeding mechanism 22 is mainly used for accurately conveying the reflective film to ensure the output length. Its structure can adopt the material roll feeding structure in the prior art, which will not be described in detail in this embodiment.

[0057] The first cutting mechanism 23 is arranged between the film feeding mechanism 22 and the material receiving and conveying platform 24, and includes a pressing module 231 for pressing the reflective film and a cutting module 232 for cutting the reflective film. The pressing module 231 includes a pair of pressure strips 2311 for pressing the two sides of the cutting line of the reflective film and a cylinder 2312 for driving the pair of pressure strips 2311 to move up and down. The cutting module 232 includes a first motor 2321, a first slide plate 2322 driven by the first motor 2321 to move horizontally perpendicular to the conveying direction of the reflective film, a second motor 2323 fixed on the first slide plate 2322, and a first blade 2324 driven by the second motor 2323 to rotate and extending between the two pressure strips 2311. The film feeding mechanism 22 outputs a reflective film of a set length, a pair of pressure strips 2311 presses the reflective film, the first motor 2321 drives the first blade 2324 to move from one end of the reflective film to the other end, and at the same time the second motor 2323 drives the first blade 2324 to rotate and roll cut, thereby cutting the reflective film into sheet-shaped reflective film.

[0058] The receiving and conveying platform 24 includes a first receiving plate 241 and a conveying module 242 embedded in the surface of the first receiving plate 241. In order to prevent the reflective film from being unevenly unfolded, a plurality of exhaust holes 2411 are provided on the first receiving plate 241 to improve the fit between the reflective film and the first receiving plate 241. The conveying module 242 is used to convey, unfold and flatten the reflective film output by the film feeding mechanism 22. The conveying module 242 includes a ninth motor 2421 and a plurality of conveying belts 2422 driven by the ninth motor 2421 to convey the film. The plurality of conveying belts 2422 are arranged in parallel and spaced apart to convey and flatten the reflective film.

[0059] The strip cutting receiving platform 25 comprises a second receiving plate 251 , and a plurality of strip-shaped through grooves 2511 are arranged on the second receiving plate 251 .

[0060] The second cutting mechanism 27 includes a third motor 271, a second slide plate 272 driven by the third motor 271 to move horizontally perpendicular to the conveying direction of the reflective film, a rotating shaft 273 rotatably arranged on the second slide plate 272, a plurality of second blades 274 fixed on the rotating shaft 273 and extending into the strip-shaped through groove 2511, and a fourth motor 275 fixed on the second slide plate 272 and driving the rotating shaft 273 to rotate. When the sheet reflective film is placed on the second receiving plate 251, the second adsorption and conveying mechanism 28 is pressed against the sheet reflective film, and the third motor 271 drives the second blade 274 to move from one end of the sheet reflective film to the other end. At the same time, the fourth motor 275 drives the second blade 274 to roll and cut, so as to cut the sheet reflective film into a plurality of strip reflective films.

[0061] The transfer range of the first adsorption conveying mechanism 26 covers the material receiving and conveying platform 24 and the strip receiving and conveying platform 25, and includes a fifth motor 261, a first beam 262 driven by the fifth motor 261 to move parallel to the conveying direction of the reflective film, a sixth motor 263 fixed on the first beam 262, and an adsorption plate 264 driven by the sixth motor 263 to move up and down.

[0062] The second adsorption and conveying mechanism 28 includes a seventh motor 281, a second beam 282 driven by the seventh motor 281 to move parallel to the conveying direction of the reflective film, an eighth motor 283 fixed on the second beam 282, a first bracket 284 driven by the eighth motor 283 to move up and down, and a variable-distance adsorption module 285 arranged on the first bracket 284.

[0063] After the sheet reflective film is cut into strip reflective film, the gap between two adjacent strip reflective film is very small, almost no gap, and there is a certain gap between the carrier strips used to receive the strip reflective film in the reflective film pasting unit 1. Therefore, after a group of strip reflective film is sucked from the strip cutting and receiving platform 25, the spacing needs to be adjusted before it can be placed on the carrier strip of the reflective film pasting unit 1.

[0064] In this embodiment, the variable pitch adsorption module 285 includes a first driving module 2851 fixed on the first bracket 284, and a plurality of adsorption strips 2852 driven by the first driving module 2851 to achieve pitch change. There are many structures for realizing the variable pitch function in the prior art, such as a magnetic suspension structure, a rotating rod structure with a threaded slide groove, a flexible connector sliding structure or a movable connector sliding structure, etc., which are not limited in this embodiment. In this embodiment, the adsorption strip 2852 includes a first adsorption strip 28521 and a second adsorption strip 28522 located on the outermost two sides, a plurality of third adsorption strips 28523 located between the first adsorption strip 28521 and the second adsorption strip 28522, and a first flexible connecting belt (not marked in the figure) connecting two adjacent adsorption strips 2852; the first adsorption strip 28521 is fixedly arranged, and the second adsorption strip 28522 is driven by the first driving module 2851 to approach or move away from the fixedly arranged first adsorption strip 28521. The second adsorption strip 28522 and all the third adsorption strips 28523 are slidably arranged on the slide rail. When the first driving module 2851 drives the second adsorption strip 28522 to move closer to the first adsorption strip 28521, it will simultaneously squeeze the third adsorption strip 28523 in the middle to move closer to each other, so that all the adsorption strips 2852 are in a close state, and there is an avoidance gap (not marked in the figure) between the lower surfaces of two adjacent adsorption strips 2852 for the second blade 274 to extend into. When all the adsorption strips 2852 are in a close state, they are pressed against the second receiving plate 251, and the avoidance gap corresponds to the position of the strip-shaped through groove 2511, and the third adsorption strip 28523 is pressed against the second receiving plate 251. After the second blades 274 cut the sheet-like reflective film into a plurality of strips of reflective film, a strip of reflective film is formed under each adsorption strip 2852, and then it is sucked out by the adsorption strip 2852; when the first driving module 2851 drives the second adsorption strip 28522 away from the first adsorption strip 28521, under the joint action of the first flexible connecting belt, the third adsorption strip 28523 in the middle is completely pulled open to the pulled open state, and in this pulled open state, all the strips of reflective film are placed on the carrier strip of the reflective film pasting unit 1.

[0065] The reflective film pasting unit 1 is mainly used to receive a plurality of reflective film strips under the second adsorption and conveying mechanism 28, and then spread them out in the reflective film pasting station area, and the unfolded reflective film strips correspond to the positions to be pasted on the glass, and then they are pasted on the glass. The reflective film pasting unit 1 includes a reflective film receiving and transferring mechanism 11 and a hot spot mechanism 12.

[0066] The reflective film receiving and transferring mechanism 11 includes a plurality of carriers 111 and a second driving module 112 for driving all the carriers 111 to switch between a closed state and an extended state. There are many structures for realizing the variable pitch function in the prior art, such as a magnetic suspension structure, a rotating rod structure with a threaded groove, a flexible connector sliding structure or a movable connector sliding structure, etc. This embodiment does not limit the mechanism of the second driving module 112 driving the carriers 111 to realize the pitch change.

[0067] The hot spot mechanism 12 includes a plurality of hot spot components 121 located at the reflective film pasting station and below the carrier strip 111, and a lifting mechanism 122 driving the hot spot components 121 to move up and down. A second bracket 123 is provided at the movable end of the lifting mechanism 122. The hot spot components 121 include a base 1211 provided on the second bracket 123, a mounting seat 1212 elastically floating up and down on the base 1211, and a hot spot head 1213 installed on the mounting seat 1212. By elastically floating up and down, the hot spot head 1213 is allowed to flexibly contact the glass, and the reflective film is pasted on the lower surface of the glass, thereby avoiding the phenomenon of damaging the glass due to hard collision.

[0068] In this embodiment, the carrier bars 111 include a first carrier bar 1111 and a second carrier bar 1112 located at the outermost sides, and a plurality of third carrier bars 1113 located between the first carrier bar 1111 and the second carrier bar 1112. All the carrier bars 111 are slidably disposed on a plurality of pairs of slide rail modules 113, and the plurality of pairs of slide rail modules 113 are used to provide strong and reliable support to the two end positions and the middle section of the carrier bars 111. The second driving module 112 drives the first carrier bar 1111 and the second carrier bar 1112 to move horizontally in parallel with the conveying direction of the short-side reflective film. A second flexible connecting belt 114 is arranged between two adjacent carrier bars 111. When the first carrier bar 1111 and the second carrier bar 1112 are driven to move closer, the third carrier bar 1113 in the middle is compressed, so that all the carrier bars 111 are brought together and are in a close state; when the first carrier bar 1111 and the second carrier bar 1112 are driven to open, under the joint action of the second flexible connecting belt 114, the third carrier bar 1113 in the middle is pulled together and is in an extended state.

[0069] The upper surface of the carrier strip 111 is provided with a bearing groove 1114 for bearing the strip reflective film, and the bottom of the bearing groove 1114 is provided with a plurality of through holes 1115 penetrating downward, and the plurality of through holes 1115 are spaced apart along the extending direction of the carrier strip 111. The upper surfaces of the plurality of carrier strips 111 in the unfolded state jointly form a supporting platform 115 for supporting the glass; a plurality of hot stamping components 121 are provided under each carrier strip 111, and are aligned with the through holes 1115, and the hot stamping components 121 are driven by the lifting mechanism 122 to move upward through the through holes 1115 to stick the strip reflective film in the bearing groove 1114 to the lower surface of the glass, thereby completing the automatic sticking of all the reflective films.

[0070] For the gap reflective film in the long side direction of the photovoltaic module, since the short side reflective film is already in the middle section of the photovoltaic module, the long side reflective film needs to be disconnected in the middle section. Based on this requirement, two reflective film feeding units 2 can be set to feed the long side reflective film. Fig. 9 In the pasting of the long side reflective film, the two reflective film pasting units 1 can also be set for pasting, such as Fig.14 As shown, a spacing adjustment mechanism 13 for adjusting the spacing between the two reflective film pasting units 1 may also be provided.

[0071] For the gap reflective film in the short side direction of the photovoltaic module, since the short side reflective film located in the middle position needs to avoid the leads extending upward to facilitate the subsequent installation of the junction box, the reflective film corresponding to the lead extending position needs to be punched out with avoidance holes at the corresponding positions. Based on this requirement, the reflective film feeding unit 2 of this embodiment also includes a punching mechanism 29, which is located between the coil feeding mechanism 21 and the film feeding mechanism 22.

[0072] For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, all of which fall within the protection scope of the present invention.

Claims

1. A method for pasting reflective film between battery cells, characterized in that: It includes the following steps: S1, unrolling the roll reflective film and feeding it, cutting it into strips according to the set width to obtain a group of strip reflective films; S2, placing the group of strip-shaped reflective film as a whole into a group of reflective film carrier strips by absorption, wherein the reflective film carrier strips are provided with a bearing groove for bearing a single strip of reflective film, and the bottom of the bearing groove is provided with a plurality of perforations; S3, the group of reflective film carrier strips carrying the strip reflective film are moved to the reflective film pasting station, and are spread out at variable intervals according to their respective pasting positions, and all the spread reflective film carrier strips jointly form a support platform; S4, the glass is moved to the reflective film pasting station with the reflective film pasting surface facing downward, and is placed on the support platform; S5. A plurality of hot stamping components are arranged below the support platform. The hot stamping components rise through the perforations to stick all the strip-shaped reflective films to the lower surface of the glass, thereby completing the sticking of the reflective films.

2. A cell gap reflective film pasting device, characterized in that: It includes: A reflective film feeding unit, comprising a coil feeding mechanism, a film feeding mechanism, a first cutting mechanism for cutting the reflective film outputted by the film feeding mechanism into sheet reflective films, a receiving and conveying platform located at the output side of the film feeding mechanism and receiving the sheet reflective film, a strip receiving and receiving platform located at the output side of the receiving and conveying platform, a first adsorption and conveying mechanism for conveying the sheet reflective film from the receiving and conveying platform to the strip receiving and receiving platform, a second cutting mechanism for cutting the sheet reflective film on the strip receiving and receiving platform into a plurality of strip reflective films, and a second adsorption and conveying mechanism for adsorbing and conveying the plurality of strip reflective films to a receiving position; A reflective film pasting unit comprises a plurality of carrier strips, a second driving module driving the carrier strips to switch between a closed state and an extended state, a plurality of hot stamping components located below the carrier strips, and a lifting mechanism driving the hot stamping components to move up and down; the carrier strips receive a group of reflective films at the material receiving position in the closed state, and then switch to the extended state to form a supporting platform after extension, and the hot stamping components pass through the carrier strips to paste the reflective film onto the glass surface located on the supporting platform.

3. The cell gap reflective film pasting device according to claim 2, characterized in that: The reflective film feeding unit also includes a punching mechanism located between the coil feeding mechanism and the film feeding mechanism.

4. The cell gap reflective film pasting device according to claim 2, characterized in that: The first cutting mechanism is arranged between the film feeding mechanism and the material receiving and conveying platform, and comprises a pressing module for pressing the reflective film and a cutting module for cutting the reflective film.

5. The cell gap reflective film pasting device according to claim 4, characterized in that: The pressing module includes a pair of pressing strips for pressing the two sides of the cutting line of the reflective film and a cylinder for driving the pair of pressing strips to move up and down; the cutting module includes a first motor, a first slide plate driven by the first motor to move horizontally perpendicular to the conveying direction of the reflective film, a second motor fixed on the first slide plate, and a first blade driven by the second motor to rotate and extended between the two pressing strips.

6. The cell gap reflective film pasting device according to claim 2, characterized in that: The material receiving and conveying platform comprises a first material receiving plate and a conveying module embedded in the surface of the first material receiving plate.

7. The cell gap reflective film pasting device according to claim 2, characterized in that: The strip cutting and receiving platform includes a second receiving plate, on which a plurality of strip-shaped through grooves are arranged; the second cutting mechanism includes a third motor, a second slide plate driven by the third motor to move horizontally perpendicular to the conveying direction of the reflective film, a rotating shaft rotatably arranged on the second slide plate, a plurality of second blades fixed on the rotating shaft and extending into the strip-shaped through grooves, and a fourth motor fixed on the second slide plate and driving the rotating shaft to rotate.

8. The cell gap reflective film pasting device according to claim 2, characterized in that: The second adsorption and conveying mechanism includes a seventh motor, a second beam driven by the seventh motor to move parallel to the conveying direction of the reflective film, an eighth motor fixed on the second beam, a first bracket driven by the eighth motor to move up and down, and a variable-distance adsorption module arranged on the first bracket.

9. The cell gap reflective film pasting device according to claim 8, characterized in that: The variable distance adsorption module comprises a first driving module fixed on the first bracket and a plurality of adsorption strips driven by the first driving module to achieve distance change.

10. The cell gap reflective film pasting device according to claim 2, characterized in that: The carrier bars include a first carrier bar and a second carrier bar located at the outermost two sides, and a plurality of third carrier bars located between the first carrier bar and the second carrier bar, and all the carrier bars are slidably arranged on a plurality of pairs of slide rail modules; a second flexible connecting belt is arranged between two adjacent carrier bars, and the first carrier bar and / or the second carrier bar are driven by the second driving module to perform horizontal movement.

11. The cell gap reflective film pasting device according to claim 2, characterized in that: The upper surface of the carrier strip is provided with a bearing groove for bearing a strip-shaped reflective film, and the bottom of the bearing groove is provided with a plurality of through holes penetrating downward, and the plurality of through holes are distributed at intervals along the extension direction of the carrier strip; when the carrier strip is in the unfolded state, the hot stamping assembly is aligned with the through holes.

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