Laminator and laminating method thereof

Abstract

The application discloses a laminating machine and a laminating method thereof. The laminating machine comprises a laminating upper chamber and a laminating lower chamber. A photovoltaic module is arranged between the laminating upper chamber and the laminating lower chamber. The laminating upper chamber comprises a laminating upper cover. At least one driving mechanism is arranged on the laminating upper cover. At least one telescopic member is arranged on the driving mechanism away from the laminating upper cover. The driving mechanism is used for controlling the rising and falling of the telescopic member. The driving mechanism is arranged along a first direction and a second direction. The first direction intersects with the second direction. The telescopic member is connected with a buffer layer at an end away from the driving mechanism. The buffer layer corresponds to the photovoltaic module. The laminating machine can realize the adjustable local pressure during the laminating. Moreover, the laminating machine does not need to use the whole buffer layer, so that the time cost can be saved while the maintenance and replacement are facilitated.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic technology, and more particularly to a laminating machine and a laminating method thereof. Background Art

[0002] With energy shortages becoming increasingly scarce, countries are vying to develop new energy sources, including solar energy, a particularly clean, green energy source. Solar power generation is a relatively mature technology and is already widely used. The increasing use of solar panels in our daily lives has greatly facilitated our work and daily lives, while also generating significant profits for businesses. However, the rapid development of the industry has led to the design of various new photovoltaic modules, posing new challenges for manufacturing equipment.

[0003] A laminator is a mechanical device that presses multiple layers of material together. It is widely used in the production of photovoltaic modules. The upper chamber of the existing laminator uses a whole silicone plate, which is inflated as a whole and uses air pressure for lamination. However, the lamination effect of the existing silicone plate is single and cannot be locally adjusted. As the thickness of each dressing decreases, it still needs to be adjusted as a whole by air pressure. In addition, the area of ​​the entire silicone plate is large, and replacement is time-consuming and labor-intensive.

[0004] Therefore, there is an urgent need to provide a laminating machine and a laminating method thereof, which can not only achieve adjustable local pressure during lamination, but also eliminate the need to use an entire buffer layer, so as to facilitate maintenance and replacement while saving time and cost. Summary of the Invention

[0005] In view of this, the present invention provides a laminating machine, comprising an upper laminating chamber and a lower laminating chamber; a photovoltaic module is placed between the upper laminating chamber and the lower laminating chamber;

[0006] The lamination upper chamber includes a lamination upper cover, and at least one driving mechanism is provided on the lamination upper cover. Each driving mechanism is provided with at least one telescopic member on a side away from the lamination upper cover, and the driving mechanism is used to control the rise and fall of the telescopic member. The driving mechanisms are arranged along a first direction and a second direction, and the first direction intersects the second direction.

[0007] One end of the telescopic member away from the driving mechanism is connected to a buffer layer, and the buffer layer corresponds to the photovoltaic component.

[0008] Optionally, each of the driving mechanisms is connected to a telescopic member, each telescopic member corresponds to one of the buffer layers, and each buffer layer corresponds to at least one battery cell.

[0009] Optionally, each of the driving mechanisms is connected to a telescopic member, each telescopic member corresponds to a buffer layer, and each buffer layer corresponds to a battery cell.

[0010] Optionally, each of the driving mechanisms is connected to at least two of the telescopic members, at least two of the telescopic members correspond to one of the buffer layers, and each of the buffer layers corresponds to at least one battery cell.

[0011] Optionally, a driving mechanism is provided on the laminated upper cover, a telescopic member is connected to a side of the driving mechanism away from the laminated upper cover, a buffer layer is connected to an end of the telescopic rod away from the driving mechanism, and each buffer layer corresponds to a photovoltaic module;

[0012] The buffer layer is provided with first grooves arranged along the first direction and extending along the second direction, and each of the first grooves corresponds to a welding strip.

[0013] Optionally, at least one second groove is formed on a side of the buffer layer away from the telescopic member, the second grooves are arranged along the first direction and extend along the second direction, and each second groove corresponds to a welding strip.

[0014] Optionally, the width of the second groove along the first direction ranges from 0.3 to 0.7 mm; the depth of the second groove along the third direction ranges from 0.3 to 0.7 mm, and the third direction intersects with the first direction and the second direction respectively.

[0015] Optionally, a cross-section of the second groove along the first direction is arched or rectangular.

[0016] Optionally, the telescopic member is connected to the buffer layer through a base.

[0017] Optionally, the base is connected to the buffer layer via fasteners.

[0018] Optionally, the buffer layer has a thickness in a third direction ranging from 10 mm to 20 mm, and the third direction intersects with the first direction and the second direction respectively.

[0019] Optionally, the buffer layer is a silicone plate or a rubber plate.

[0020] The present invention also provides a laminating method for a laminator, providing a laminator, the laminator comprising an upper laminating chamber and a lower laminating chamber, wherein a photovoltaic module is placed between the upper laminating chamber and the lower laminating chamber; the upper laminating chamber comprising an upper laminating cover, the upper laminating cover being provided with at least one driving mechanism, each of the driving mechanisms being provided with at least one telescopic member on a side away from the upper laminating cover, the driving mechanism being used to control the ascent and descent of the telescopic member, the driving mechanisms being arranged along a first direction and a second direction, the first direction intersecting the second direction; the telescopic member being connected to a buffer layer at one end away from the driving mechanism, the buffer layer corresponding to the photovoltaic module;

[0021] The extended length of the telescopic member at the periphery is smaller than the extended length of the telescopic member at the center.

[0022] Compared with the prior art, the laminating machine and laminating method provided by the present invention achieve at least the following beneficial effects:

[0023] The present invention provides a laminating machine and a laminating method thereof, wherein the laminating upper chamber in the laminating machine includes a laminating upper cover, at least one driving mechanism is provided on the laminating upper cover, and at least one telescopic member is provided on the side of each driving mechanism away from the laminating upper cover, the driving mechanism is used to control the rise and fall of the telescopic member, the driving mechanism is arranged along a first direction and a second direction, and the first direction intersects with the second direction; the end of the telescopic member away from the driving mechanism is connected to a buffer layer, and the buffer layer corresponds to a photovoltaic module, which not only can realize local pressure adjustment during lamination, but also does not need to use a whole buffer layer, so as to facilitate maintenance and replacement while saving time and cost.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the technical effects described above at the same time.

[0025] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0027] Figure 1 This is a front view of the laminating machine provided by the present invention;

[0028] Figure 2 It is a side view of the laminating machine provided by the present invention;

[0029] Figure 3 yes Figure 2 A magnified view of point A;

[0030] Figure 4 This is a diagram showing the use of a single-point control in a laminating machine provided by the present invention;

[0031] Figure 5 This is a circuit diagram of a single-point control in a laminating machine provided by the present invention;

[0032] Figure 6 This is a diagram showing the use of a single string control in a laminating machine provided by the present invention;

[0033] Figure 7 This is a circuit diagram of a single string control in a laminating machine provided by the present invention;

[0034] Figure 8 This is a diagram showing the relative usage status of two photovoltaic cell strings in the laminator provided by the present invention;

[0035] Figure 9 is another side view of the laminating machine provided by the present invention;

[0036] Figure 10 This is a front view of the buffer layer provided by the present invention;

[0037] Figure 11 is a bottom view of the buffer layer provided by the present invention;

[0038] Figure 12 It is a schematic flow chart of the laminating method of the laminating machine provided by the present invention. DETAILED DESCRIPTION

[0039] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0040] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0041] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0042] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0043] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0044] Figure 1 This is a front view of the laminating machine provided by the present invention; Figure 2 It is a side view of the laminating machine provided by the present invention; Figure 3 yes Figure 2 A magnified view of point A; Figure 4 This is a diagram showing the use of a single-point control in a laminating machine provided by the present invention; Figure 5 This is a circuit diagram of a single-point control in a laminator provided by the present invention; Figure 1-Figure 5As shown, this embodiment provides a laminating machine, including a laminating upper chamber 100 and a laminating lower chamber (not shown in the figure); the photovoltaic module 200 is placed between the laminating upper chamber 100 and the laminating lower chamber (not shown in the figure); the laminating upper chamber 100 includes a laminating upper cover 101, and the laminating upper cover 101 is provided with at least one driving mechanism 102, and each driving mechanism 102 is provided with at least one telescopic member 103 on the side away from the laminating upper cover 101, and the driving mechanism 102 is used to control the rise and fall of the telescopic member 103, and the driving mechanism 102 is arranged along a first direction X and a second direction Y, and the first direction X intersects with the second direction Y; the telescopic member 103 is connected to the buffer layer 104 at one end away from the driving mechanism 102, and the buffer layer 104 corresponds to the photovoltaic module 200.

[0045] Specifically, the laminator includes an upper lamination chamber 100 and a lower lamination chamber (not shown in the figure); a photovoltaic module 200 is placed between the upper lamination chamber 100 and the lower lamination chamber (not shown in the figure), and the photovoltaic module 200 includes glass 201, an upper encapsulation film 202, a photovoltaic cell string 203, a lower encapsulation film 204, and a backsheet 205 arranged in sequence;

[0046] The laminating chamber 100 includes a laminating upper cover 101, and a plurality of driving mechanisms 102 are provided on the laminating upper cover 101. The driving mechanism 102 can be a motor. Each driving mechanism 102 is provided with at least one telescopic member 103. The telescopic member 103 can be a telescopic plate. The driving mechanism 102 can independently control a telescopic member 103 to perform an ascending and descending movement. The laminating pressure is determined by the working length of the telescopic member 103, that is, the laminating pressure is determined by the working length of the telescopic member 103. When one driving mechanism 102 corresponds to one telescopic member 103, the strength of the telescopic member 103 can be controlled more accurately. The telescopic member 103 must ensure that the photovoltaic group The basic performance of the component 200 is achieved, and each telescopic component 103 can be controlled individually, which is also convenient for replacement and maintenance; the driving mechanism 102 can also control two telescopic components 103, and the two telescopic components 103 are driven by the driving mechanism 102 to move up and down at the same time. Of course, according to actual conditions, the driving motor can also control three telescopic components 103, and the three telescopic components 103 are driven by the driving mechanism 102 to move up and down at the same time; the driving mechanisms 102 are arranged along a first direction X and a second direction Y, and the first direction X intersects the second direction Y, that is, the driving mechanisms 102 are arranged in a matrix manner, and optionally, the first direction X is perpendicular to the second direction Y;

[0047] Each telescopic member 103 is connected to a buffer layer 104 at one end away from the driving mechanism 102. The buffer layer 104 corresponds to the photovoltaic module 200. The buffer layer 104 is in direct contact with the glass 201 or the back panel 205. The material can be a material with a Shore hardness between 40-80HA, such as a silicone plate or a rubber plate. The Shore hardness can be a measure of the hardness of non-metallic materials such as plastic, rubber and glass; a buffer layer 104 is connected to each telescopic member 103, and there is no need to use the entire buffer layer 104, so as to facilitate maintenance and replacement while saving costs, such as time cost and / or economic cost.

[0048] It can be seen from the above embodiments that the laminating machine provided in this embodiment achieves at least the following beneficial effects:

[0049] The laminating upper chamber 100 in the laminating machine of this embodiment includes a laminating upper cover 101, on which at least one driving mechanism 102 is provided, and at least one telescopic member 103 is provided on the side of each driving mechanism 102 away from the laminating upper cover 101, the driving mechanism 102 is used to control the rise and fall of the telescopic member 103, the driving mechanism 102 is arranged along a first direction X and a second direction Y, and the first direction X intersects with the second direction Y; the end of the telescopic member 103 away from the driving mechanism 102 is connected to the buffer layer 104, and the buffer layer 104 corresponds to the photovoltaic module 200, which not only enables local pressure adjustment during lamination, but also eliminates the need to use an entire buffer layer 104, so as to facilitate maintenance and replacement while saving time and cost.

[0050] In one embodiment, referring to Figure 1-Figure 5 As shown, each driving mechanism 102 is connected to a telescopic member 103, each telescopic member 103 corresponds to a buffer layer 104, and each buffer layer 104 corresponds to at least one battery cell 2031. The driving mechanism 102 and the telescopic member 103 can correspond one to one, that is, one driving mechanism 102 controls one telescopic member 103 to achieve single-point pressure control, such as single-point pressure control; one driving mechanism 102 can also be connected to multiple telescopic members 103, that is, one driving mechanism 102 controls multiple telescopic members 103 to achieve regional pressure control, such as single string or relative 2 string pressure overall control. Specifically, each buffer layer 104 can correspond to a battery cell 2031 to achieve single-point control, such as one driving mechanism 102 controls one telescopic member 103, using a buffer layer 104 connected to a telescopic member 103, the buffer layer 104 corresponds to one battery cell 2031, and can also correspond to multiple battery cells 2031 to achieve one-to-many control (one buffer layer 104 corresponds to multiple battery cells 2031), which can be adjusted according to actual conditions.

[0051] Optionally, continue with reference to Figure 4 and Figure 5As shown, each drive mechanism 102 is connected to a telescopic member 103, each telescopic member 103 corresponds to a buffer layer 104, and each buffer layer 104 corresponds to a battery cell 2031. In this way, when the overall control is carried out, all drive mechanism signals, such as motor signals, are connected in parallel to realize the telescopic function of all telescopic members 103 (such as telescopic rods) as a whole, and each drive mechanism 102 is controlled by a separate signal line for single-point control. Specifically, the drive mechanism 102 adopts an overall series connection method to achieve the overall control effect, and the downward pressing distance of the telescopic member 103 is set depending on the parameter The number is set, such as the required lamination pressure. If the required lamination pressure is large, the extension length of the telescopic member increases; conversely, the extension length of the telescopic member 103 decreases. At the same time, each telescopic member 103 and the corresponding driving mechanism 102 are set with a separate control circuit 1021 for adjusting the local pressure, thereby avoiding lamination bubbles and the risk of battery cell cracking. It should be noted that single-point control can also improve the phenomenon of battery cell cracking. When single-point control is used, the position where cracks are prone to occur between adjacent battery cells can be avoided. For example, if gaps are reserved between adjacent buffer layers 104, the position where cracks are prone to occur in the battery cells can be directly avoided.

[0052] If the length of the buffer layer 104 along the first direction X is less than 81 cm, the gap between adjacent buffer layers 104 is too large, the invalid lamination area is too large, and the lamination effect cannot be achieved. If the length of the buffer layer 104 along the first direction X is less than 87 cm, the adjacent telescopic parts 103 collide with each other, and the extension and retraction of the telescopic parts 103 cause friction, and even fail to work. Therefore, the length of the buffer layer 104 along the first direction X is designed to be 81-87 cm. This not only reduces the gap between adjacent buffer layers 104 to avoid excessive invalid lamination area and improve the lamination effect, but also prevents adjacent telescopic parts 103 from colliding with each other, and there is no friction when the adjacent telescopic parts 103 extend and retract, so that they can work effectively. Specifically, the length of the buffer layer 104 along the first direction X is 81 cm, 83 cm, 85 cm or 87 cm.

[0053] In one embodiment, Figure 6 This is a diagram showing the use of a single string control in a laminating machine provided by the present invention; Figure 7 This is a circuit diagram of a single string control in a laminating machine provided by the present invention; Figure 8 This is a diagram showing the relative use of two photovoltaic cell strings in the laminator provided by the present invention; Figure 1-Figure 3 , Figure 6-Figure 8 As shown, each driving mechanism 102 is connected to at least two telescopic members 103 , at least two telescopic members 103 correspond to a buffer layer 104 , and each buffer layer 104 corresponds to at least one battery cell 2031 .

[0054] Specifically, continue to refer to Figure 6 and Figure 7As shown, three telescopic members 103 can be connected to each driving mechanism 102, and the three telescopic members 103 are connected to a buffer layer 104. Each buffer layer 104 corresponds to a single photovoltaic cell string 203. When the overall lamination is controlled, the telescopic function of all the telescopic members 103 is achieved by connecting all the driving mechanism signals (motor signals) in parallel. Each synchronous driving mechanism 102 corresponding to each string has a separate signal line 1021 for single string control. Of course, when a single string is controlled, three driving mechanisms 102 (motors) can also control one telescopic member 103 respectively, and the three driving mechanisms 102 can work synchronously.

[0055] If the length of the buffer layer 104 along the first direction X is less than 1083 cm, the gap between adjacent buffer layers 104 is too large, the invalid lamination area is too large, and the lamination effect cannot be achieved. If the length of the buffer layer 104 along the first direction X is greater than 1089 cm, the adjacent telescopic parts 103 collide with each other, and the extension and retraction of the telescopic parts 103 cause friction, and even fail to work. Therefore, the length of the buffer layer 104 along the first direction X is designed to be 1083-1089 cm, which not only reduces the gap between adjacent buffer layers 104 to avoid excessive invalid lamination area and improve the lamination effect, but also prevents adjacent telescopic parts 103 from colliding with each other, and there is no friction when the adjacent telescopic parts 103 extend and retract, so that it can work effectively. The length of the buffer layer 104 along the first direction X is 1083 cm, 1085 cm, 1087 cm or 1089 cm.

[0056] Continue to refer to Figure 8 As shown, six telescopic members 103 can be connected to each driving mechanism (not shown in the figure), and the six telescopic members 103 are connected to a buffer layer 104. Each buffer layer 104 corresponds to two relative photovoltaic cell strings 203. When the whole is controlled, the telescopic function of all the telescopic members 103 is realized by connecting all the driving mechanism signals (motor signals) in parallel. Each corresponding driving mechanism (not shown in the figure) of each string is synchronously controlled by a separate signal line for single-string control. Of course, when a single string is controlled, six driving mechanisms (motors) can also control one telescopic member 103 respectively, and the six driving mechanisms can work synchronously.

[0057] If the length of the buffer layer 104 along the first direction X is less than 2175 cm, the gap between adjacent buffer layers 104 is too large, the invalid lamination area is too large, and the lamination effect cannot be achieved. If the length of the buffer layer 104 along the first direction X is greater than 2181 cm, adjacent telescopic parts 103 collide with each other, and the extension and retraction of the telescopic parts 103 cause friction, and even fail to work. Therefore, the length of the buffer layer 104 along the first direction X is designed to be 2175-2181 cm. This not only reduces the gap between adjacent buffer layers 104 to avoid excessive invalid lamination area and improve the lamination effect, but also prevents adjacent telescopic parts 103 from colliding with each other, and there is no friction when the adjacent telescopic parts 103 extend and retract, so that they can work effectively. The length of the buffer layer 104 along the first direction X is 2175 cm, 2177 cm, 2179 cm or 2181 cm.

[0058] In one embodiment, Figure 9 This is another side view of the laminating machine provided by the present invention; Figure 9 As shown, Figure 9 Please refer to the enlarged picture for details Figure 3 As shown, Figure 9 The corresponding plan and Figure 3 The only difference is that this embodiment uses only one driving mechanism, which controls the entire buffer layer to move up and down through a telescopic rod. Specifically, a driving mechanism (not shown in the figure) is provided on the laminated cover 101, and a telescopic member 103 is connected to the side of the driving mechanism (not shown in the figure) away from the laminated cover 101. A buffer layer 104 is connected to the end of the telescopic rod away from the driving mechanism (not shown in the figure). Each buffer layer 104 corresponds to a photovoltaic module 200.

[0059] The buffer layer 104 is provided with first grooves 105 arranged along the first direction X and extending along the second direction Y, and each first groove 105 corresponds to a welding strip 206. That is to say, the driving mechanism can be a motor, and one driving mechanism is connected to a telescopic rod, and one telescopic rod is connected to the buffer layer 104. Specifically, one telescopic rod can be connected to the buffer layer 104 through the base 107. Each buffer layer 104 corresponds to a photovoltaic module 200. The buffer layer 104 is provided with multiple first grooves 105 on the side away from the base 107. Multiple first grooves 105 are provided on the side away from the base 107. The grooves 105 are arranged along the first direction X and extend along the second direction Y. The first grooves 105 can avoid the position of the welding ribbon 206. No pressure is applied to the position of the welding ribbon 206, which can improve the lamination cracks of the battery cell 2031. The shape of the cross section of the first groove 105 along the first direction X can be arched or rectangular. If the welding ribbon 206 is a circular welding ribbon 206, the shape of the cross section of the first groove 105 along the first direction X can be arched. If the welding ribbon 206 is a rectangular welding ribbon 206, the shape of the cross section of the first groove 105 along the first direction X can be rectangular.

[0060] In one embodiment, Figure 10 This is a front view of the buffer layer provided by the present invention; Figure 11 is a bottom view of the buffer layer provided by the present invention; Figure 3 、 Figure 10-11 As shown, at least one second groove 106 is formed on the side of the buffer layer 104 away from the telescopic member 103. The second grooves 106 are arranged along the first direction X and extend along the second direction Y. Each second groove 106 corresponds to a welding ribbon 206. The second grooves 106 avoid the position of the welding ribbon 206, and no pressure is applied to the welding ribbon 206. This improves the hidden cracks in the welding ribbon 206 caused by the lamination applying pressure to the welding ribbon 206 area, thereby improving the hidden cracks in the battery cell 2031. The shape of the second groove 106 can be arched or rectangular. The cross-section shape of the second groove 106 along the first direction X can be arched or rectangular. For example, if the welding ribbon 206 is a circular welding ribbon 206, the cross-section shape of the second groove 106 along the first direction X can be arched. If the welding ribbon 206 is a rectangular welding ribbon 206, the cross-section shape of the second groove 106 along the first direction X can be rectangular.

[0061] In one embodiment, referring to Figure 3 、 Figure 10 and Figure 11 As shown, the width of the second groove 106 along the first direction X ranges from 0.3 to 0.7 mm; the depth of the second groove 106 along the third direction Z ranges from 0.3 to 0.7 mm, and the third direction Z intersects the first direction X and the second direction Y respectively.

[0062] Specifically, if the width of the second groove 106 along the first direction X is less than 0.3 mm, the soldering ribbon 206 needs to withstand pressure, which will not improve the hidden cracks of the battery cell 2031. If the width of the second groove 106 along the first direction X is greater than 0.7 mm, the non-contact pressure area at the soldering ribbon 206 is too large, which is prone to lamination bubbles or non-cross-linking. Therefore, the width range of the second groove 106 along the first direction X is designed to be 0.3-0.7 mm, which not only prevents the soldering ribbon 206 from bearing pressure and achieves the effect of improving the hidden cracks of the battery cell 2031 at the soldering ribbon 206, but also ensures the contact pressure area at the soldering ribbon 206 to prevent the generation of lamination bubbles or non-cross-linking. Specifically, the width of the second groove 106 along the first direction X can be 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm or 0.7 mm.

[0063] If the depth of the second groove 106 along the third direction Z is less than 0.3mm, the soldering ribbon 206 needs to withstand pressure, which will not improve the hidden cracks of the battery cell 2031. If the depth of the second groove 106 along the third direction Z is greater than 0.7mm, the non-contact pressure area at the soldering ribbon 206 is too large, which is prone to laminated bubbles or non-cross-linking. Therefore, the depth range of the second groove 106 along the third direction Z is designed to be 0.3-0.7mm, which not only prevents the soldering ribbon 206 from bearing pressure and achieves the effect of improving the hidden cracks of the battery cell 2031 at the soldering ribbon 206, but also ensures the contact pressure area at the soldering ribbon 206 to prevent the generation of laminated bubbles or non-cross-linking. Specifically, the depth of the second groove 106 along the third direction Z can be 0.3mm, 0.4mm, 0.5mm, 0.6mm or 0.7mm.

[0064] In one embodiment, referring to Figure 3 As shown, the telescopic member 103 is connected to the buffer layer 104 through the base 107. Taking the buffer layer 104 as a silicone plate as an example, the silicone plate can be fixed on the base 107 first, and then the base 107 is connected to the telescopic member 103. The base 107 can be a flat metal material. The specifications of the silicone plate match the specifications of the base 107. The base 107 can be connected to the silicone plate through fasteners 108. For example, first threaded fixing holes 109 are respectively provided on both sides of the silicone plate close to the base 107, and a second threaded fixing hole corresponding to the first threaded fixing hole 109 is also provided on the base 107 (not shown in the figure). The base 107 is fixedly connected to the silicone plate by fasteners 108, such as bolts. The use of fasteners 108 to connect the two together facilitates the replacement of the silicone plate and facilitates disassembly and maintenance.

[0065] In one embodiment, referring to Figure 3 and Figure 10As shown, the thickness of the buffer layer 104 along the third direction Z is in the range of 10-20 mm, and the third direction Z intersects the first direction X and the second direction Y respectively.

[0066] Specifically, if the thickness of the buffer layer 104 along the third direction Z is less than 10 mm, the buffer layer 104 is too thin and the buffer layer 104 is easy to break. If the thickness of the buffer layer 104 along the third direction Z is greater than 20 mm, the temperature absorption is too much, the temperature rises slowly, and resources are wasted. Therefore, the thickness range of the buffer layer 104 along the third direction Z is designed to be 10-20 mm, which not only prevents the buffer layer 104 from being too thin and reduces the phenomenon of fragmentation, but also prevents excessive temperature absorption, reasonably heats up, and saves resources. Specifically, the thickness of the buffer layer 104 along the third direction Z can be 10 mm, 12 mm, 14 mm, 16 mm, 18 mm or 20 mm.

[0067] Figure 12 This is a schematic diagram of the laminating method of the laminating machine provided by the present invention, see Figure 12 As shown, this embodiment also provides a laminating method of a laminator, S1: providing a laminator, the laminator comprising an upper laminating chamber and a lower laminating chamber, the photovoltaic module being placed between the upper laminating chamber and the lower laminating chamber; the upper laminating chamber comprising a laminating upper cover, the laminating upper cover being provided with at least one driving mechanism, each of the driving mechanisms being provided with at least one telescopic member on a side away from the laminating upper cover, the driving mechanism being used to control the ascent and descent of the telescopic member, the driving mechanisms being arranged along a first direction and a second direction, the first direction intersecting the second direction; the telescopic member being connected to a buffer layer at one end away from the driving mechanism, the buffer layer corresponding to the photovoltaic module;

[0068] S2: The extended length of the telescopic member at the periphery is made smaller than the extended length of the telescopic member at the center.

[0069] Specifically, the structure of the laminator refers to the specific structure of the laminator mentioned above, and no further details are given here; usually, when the laminator is laminating, the lamination strength at the four sides is greater than the lamination strength in the middle, so hidden cracks are more likely to occur around the battery cell. In this solution, since a driving mechanism in the laminator can be connected to a telescopic part, or a driving mechanism can be connected to several telescopic parts, it is convenient to locally adjust the elongation length of the telescopic part. The elongation length of the telescopic part at the four sides can be made smaller than the elongation length of the telescopic part at the center, that is, the lamination strength of the telescopic part at the four sides is made smaller than the lamination strength of the telescopic part at the center. By adjusting the The extended length of the telescopic parts can more effectively avoid hidden cracks around the battery cells during lamination; of course, due to the improvement of the structure of the laminator, such as one telescopic rod corresponding to one driving mechanism, single-point control is realized. During single-point control, gaps are reserved between adjacent battery cells to avoid the location of hidden cracks in the battery cells. Multiple second grooves can also be opened on the buffer layer to improve the hidden cracks in the battery cells. Therefore, the extended length of the telescopic parts at the four sides can also be made consistent with the extended length of the telescopic parts at the center. In other words, the lamination strength of the telescopic parts at the four sides is the same as the lamination strength of the telescopic parts at the center, and specific adjustments are made according to actual conditions.

[0070] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A laminating machine, characterized in that: including a laminated upper chamber and a laminated lower chamber; The photovoltaic modules are placed between the upper lamination chamber and the lower lamination chamber; The lamination upper chamber includes a lamination upper cover, and at least one driving mechanism is provided on the lamination upper cover. Each driving mechanism is provided with at least one telescopic member on a side away from the lamination upper cover, and the driving mechanism is used to control the rise and fall of the telescopic member. The driving mechanisms are arranged along a first direction and a second direction, and the first direction intersects the second direction. One end of the telescopic member away from the driving mechanism is connected to a buffer layer, and the buffer layer corresponds to the photovoltaic component.

2. The laminating machine according to claim 1, characterized in that Each of the driving mechanisms is connected to a telescopic member, each telescopic member corresponds to a buffer layer, and each buffer layer corresponds to at least one battery cell.

3. The laminating machine according to claim 2, characterized in that Each of the driving mechanisms is connected to a telescopic member, each telescopic member corresponds to a buffer layer, and each buffer layer corresponds to a battery cell.

4. The laminating machine according to claim 1, characterized in that Each of the driving mechanisms is connected to at least two of the telescopic members, at least two of the telescopic members correspond to one of the buffer layers, and each of the buffer layers corresponds to at least one battery cell.

5. The laminating machine according to claim 1, characterized in that The laminated upper cover is provided with a driving mechanism, a side of the driving mechanism away from the laminated upper cover is connected to a telescopic member, and an end of the telescopic member away from the driving mechanism is connected to a buffer layer, and each buffer layer corresponds to a photovoltaic module; The buffer layer is provided with first grooves arranged along the first direction and extending along the second direction, and each of the first grooves corresponds to a welding strip.

6. The laminating machine according to claim 1, characterized in that At least one second groove is formed on a side of the buffer layer away from the telescopic member. The second grooves are arranged along the first direction and extend along the second direction. Each second groove corresponds to a welding strip.

7. The laminating machine according to claim 6, characterized in that The width of the second groove along the first direction ranges from 0.3 to 0.7 mm; the depth of the second groove along the third direction ranges from 0.3 to 0.7 mm, and the third direction intersects with the first direction and the second direction respectively.

8. The laminating machine according to claim 6, characterized in that The cross-section of the second groove along the first direction is arched or rectangular.

9. The laminating machine according to claim 1, characterized in that The telescopic member is connected to the buffer layer through a base.

10. The laminating machine according to claim 9, characterized in that The base is connected to the buffer layer through a fastener.

11. The laminating machine according to claim 1, characterized in that The buffer layer has a thickness in a range of 10-20 mm along a third direction, and the third direction intersects with the first direction and the second direction respectively.

12. The laminating machine according to any one of claims 1 to 11, characterized in that The buffer layer is a silica gel plate or a rubber plate.

13. A laminating method using a laminating machine, characterized in that: A laminator is provided, comprising an upper lamination chamber and a lower lamination chamber, wherein a photovoltaic module is placed between the upper lamination chamber and the lower lamination chamber; the upper lamination chamber comprises an upper lamination cover, the upper lamination cover being provided with at least one driving mechanism, each driving mechanism being provided with at least one telescopic member on a side away from the upper lamination cover, the driving mechanism being used to control the ascent and descent of the telescopic member, the driving mechanisms being arranged along a first direction and a second direction, the first direction intersecting the second direction; the telescopic member being connected to a buffer layer at one end away from the driving mechanism, the buffer layer corresponding to the photovoltaic module; The extended length of the telescopic member at the periphery is smaller than the extended length of the telescopic member at the center.

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