CN108807580A - A kind of electrification component forming method - Google Patents

Abstract

The invention relates to the technical field of solar cells, in particular to a method for forming a power generation component. In the method for forming a power generation assembly provided by the present invention, a first stacked structure is provided at one station, and then a second stacked structure is provided at an adjacent station to form a power generation structure with a photoelectric conversion layer, so that the first A laminated structure is placed on the second laminated structure and pre-fixed. Since the first laminated structure is formed by stacking on a plane, the position is easier to fix, and there will be no misalignment and wrinkles between layers. , and then put the pre-fixed first laminated structure on the second laminated structure and press it to form the power generation assembly, so there will be no problems such as hollowing, wrinkles, and deviations. The whole solar curved surface glass is formed after laying The product quality is better and the manufacturing cost can be reduced.

Description

A method for forming a power generation component

technical field

The invention relates to the technical field of solar cells, in particular to a method for forming a power generation component.

Background technique

At present, solar curved glass tiles are generally single-glass tricurved tiles, and the back and side of the single-glass tricurved tiles are in a wavy and multi-curved shape. Laying is done manually in sequence. The main process of packaging is as follows: The laying of three-curved tempered glass, butyl rubber strips, the first layer of POE film, battery chip components, the second layer of POE film and the backplane;

The current manufacturing process of single glass tri-curved tiles generally carries out layered laying operations from bottom to top: laying operation: the first layer of POE film, battery chip components, the second layer of POE film and the back plate are first stacked on the glass back in order. In the butyl rubber strip frame on the side, the whole is pressed from the back panel into a wave shape and fixed with adhesive tape, then placed on the top of the back panel and entered into the laminator for lamination. At present, the back side of the single-glass tri-curved tile is in a wavy and multi-curved shape. Using the above-mentioned process, the operation cycle is long and the first layer of POE adhesive film, battery chip components and the second layer of adhesive film cannot be fixed after being placed in the laying process. When the backsheet is laid and pressed into a wave shape, it is prone to misalignment/wrinkling. After lamination, there are defects such as wrinkles, air bubbles, and color difference, which will ultimately affect the entire development cost of the product.

Contents of the invention

(1) The technical problem to be solved by the present invention is: the existing power generation component forming method has a long cycle and is prone to deviation/wrinkle during the laying process. After lamination, there are problems such as wrinkles, air bubbles, and color difference, which in turn affect the overall quality of the product. manufacturing costs and development costs.

(2) Technical solution

In order to solve the above technical problems, the present invention provides a method for forming a power generation component, comprising the following steps:

Provide a first stacked structure, the first stacked structure is formed with a layer structure that converts solar energy into electrical energy, and the first stacked structure includes a photoelectric conversion layer, a first layer structure and a second stacked structure arranged in sequence from bottom to top layer structure;

A second laminated structure is provided, the second laminated structure is used to carry the first laminated structure, and the second laminated structure includes a substrate layer, an annular groove and a third layer arranged sequentially from bottom to top structure, the contact portion of the substrate layer and the annular groove is configured as a continuous undulating structure;

A power generation structure with a photoelectric conversion layer is formed, the first stacked structure is placed on the second stacked structure and pre-fixed.

Beneficial effects of the present invention: In the method for forming a power generation assembly provided by the present invention, a first stacked structure is provided at one station, and then a second stacked structure is provided at another station to form a power generation assembly with a photoelectric conversion layer. structure, so that the first laminated structure is placed on the second laminated structure and pre-fixed. Since the first laminated structure is formed by laying stacks on a plane, the position is easier to fix, and there is no gap between layers. There will be problems of misalignment and wrinkles, and then the pre-fixed first laminated structure is placed on the second laminated structure and pressed to form the power generation component, so there will be no problems such as hollowing, wrinkles, and misalignment. The entire solar energy The quality of the product formed after the curved glass is laid is better, which can reduce the manufacturing cost.

Further, the providing of the first stacked structure includes:

providing a photoelectric conversion layer, the photoelectric conversion layer is configured as a solar cell chip;

providing a first layer structure, the first layer structure is an adhesive layer for bonding the photoelectric conversion layer and the second layer structure;

A second layer structure is provided, the second layer structure is a waterproof layer, and the waterproof layer is used for waterproofing;

The solar cell chip, the first layer structure, and the second layer structure are sequentially arranged from bottom to top, and the first layer structure and the second layer structure are placed on the first layer of the solar cell chip. at the specified location.

Further, the first layer structure is configured to cover the solar cell chip.

Further, the second layer structure is configured to cover the first layer structure.

Further, the backplane is configured as a flexible backplane.

Further, the sequential arrangement of the solar cell chip, the first layer structure, and the second layer structure from bottom to top includes:

The photoelectric conversion layer, the first layer structure, and the second layer structure are initially fixed;

Further, the preliminary fixation of the photoelectric conversion layer, the first layer structure and the second layer structure includes:

The photoelectric conversion layer, the first layer structure, and the second layer structure are connected at a first prescribed temperature to at least one side of the photoelectric conversion layer, the first layer structure, and the second layer structure.

Further, the providing the second laminated structure includes:

providing a substrate layer for supporting the annular groove and the third layer structure;

providing an annular groove, the annular groove comprising a specified number of bonding elements distributed annularly on the substrate layer;

providing a third layer structure, the third layer structure being an adhesive layer;

The third layer structure is put into the annular groove formed by the bonding member and arranged on the base material layer, and the third layer structure is placed at a second designated position of the annular groove.

Further, the substrate layer is set as one of inorganic transparent material or transparent polyester material.

Further, the substrate layer is curved glass.

Further, the specified number of bonding parts is 4 to 20.

Further, forming a power generation structure with a photoelectric conversion layer, placing the first stacked structure on the second stacked structure and completing pre-fixation, the specific steps include:

Preliminarily fixing the first laminated structure and the second laminated structure for the first time, the first fixing is segmental pressing with a plurality of profiling pressing fixtures;

The first laminated structure and the second laminated structure are preliminarily fixed for a second time, and the second time of fixing is adhesively fixed.

Further, the segmental pressing of the multiple profiling pressing fixtures includes:

The first laminated structure is divided into multiple sections, and each section corresponds to one of the profiling pressing jigs, and the profiling laminating jigs are aligned and pressed down sequentially based on one side of the first laminated structure.

Further, the adhesive fixation includes:

Keeping the pressed state of the profiling pressing fixture, at the second specified temperature, the first laminated structure, the second laminated structure and the connection between the first laminated structure and the second laminated structure are completed.

Further, the first specified temperature and the second specified temperature are set to 120-150°C.

Description of drawings

The advantages of the above and/or additional aspects of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a process flow diagram of the method for forming the power generation assembly provided by an embodiment of the present application;

Fig. 2 is a flow chart of the process of providing the first stacked structure provided by another embodiment of the present application;

Fig. 3 is a flow chart of the process of providing the second stacked structure provided in another embodiment of the present application.

Fig. 4 is a process flow chart of forming a power generation structure with a photoelectric conversion layer, placing the first stacked structure on the second stacked structure and completing pre-fixing provided by another embodiment of the present application .

Detailed ways

In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

As shown in Figure 1, the present invention provides a method for forming a power generation component, comprising the following steps:

S1, providing a first stacked structure, the first stacked structure is formed with a layer structure that converts solar energy into electrical energy, and the first stacked structure includes a photoelectric conversion layer, a first layer structure and a second layer structure;

S2, providing a second laminated structure, the second laminated structure is used to carry the first laminated structure, the second laminated structure includes a substrate layer, an annular groove, and a second laminated structure arranged sequentially from bottom to top A three-layer structure, the contact portion of the substrate layer and the annular groove is configured as a continuous undulating structure;

S3, forming a power generation structure with a photoelectric conversion layer, placing the first stacked structure on the second stacked structure and completing pre-fixation.

In the method for forming a power generation assembly provided by the present invention, a first stacked structure is provided at one station, and then a second stacked structure is provided at another station to form a power generation structure with a photoelectric conversion layer, so that the first A laminated structure is placed on the second laminated structure and pre-fixed. Since the first laminated structure is formed by stacking on a plane, the position is easier to fix, and there will be no misalignment and wrinkles between layers. , and then put the pre-fixed first laminated structure on the second laminated structure and press it to form the power generation assembly, so there will be no problems such as hollowing, wrinkles, and deviations. The entire solar curved surface glass is formed after laying The product quality is better and the manufacturing cost can be reduced.

As shown in Figure 2, step S1: the provision of the first stacked structure includes the following sub-steps:

S1-1, providing a photoelectric conversion layer, the photoelectric conversion layer being set as a solar cell chip;

S1-2, providing a first layer structure, the first layer structure is a bonding layer for bonding the photoelectric conversion layer and the second layer structure;

S1-3, providing a second layer structure, the second layer structure is a waterproof layer, and the waterproof layer is used for waterproofing;

S1-4, laying the solar cell chip, the adhesive layer, and the waterproof layer sequentially from bottom to top, and placing the adhesive layer and the waterproof layer at the first designated position of the solar cell chip superior. The first designated position is preferably the central axis position of the solar cell chip.

Preferably in sub-step S1-2, the adhesive layer covers the solar cell chip, and each side of the adhesive layer is 1-6mm longer than the corresponding side of the solar cell chip, so The adhesive layer completely covers the upper side of the solar chip, can protect the solar cell chip, and the adhesive layer can bond the solar cell chip and the waterproof layer; preferably, the Each side of the adhesive layer is 1mm, 2mm, 3mm, 4mm or 6mm longer than the corresponding side of the solar cell chip; optionally the adhesive layer is a POE adhesive film layer, and the POE adhesive film The layer is adhesive and can bond the solar cell chip and the waterproof layer. Preferably, the POE adhesive film layer is more viscous after being heated, so the bonding strength can be improved by heating.

Further, in sub-step S1-3, the second layer structure is configured to cover the first layer structure. The second layer structure is a waterproof layer; preferably, the size of the waterproof layer is larger than the size of the adhesive layer, and each side of the waterproof layer is longer than the corresponding side of the adhesive layer 5-10mm, the waterproof layer is used to protect the bonding layer and solar cell chips; preferably, each side of the waterproof layer is 5mm, 7mm, 8mm or 10mm longer than the corresponding side of the bonding layer The waterproof layer is set as a backboard, the backboard is a flexible backboard, preferably, the backboard is a flexible aluminum plate, and the flexible aluminum plate is covered on the adhesive layer to form a film structure.

Optionally, in sub-step S1-4, the solar cell chip, the first layer structure, and the second layer structure are sequentially arranged from bottom to top, including: a photoelectric conversion layer, a first layer structure , The second layer structure is initially fixed. The photoelectric conversion layer, adhesive layer, and waterproof layer are initially fixed; by initially fixing the photoelectric conversion layer, adhesive layer, and waterproof layer, the three are initially formed as a whole, so that when moving or pressing the first laminated structure, it can prevent Problems such as misalignment and wrinkles among the photoelectric conversion layer, adhesive layer, and waterproof layer facilitate the compounding of the first laminated structure and the second laminated structure.

The preliminary fixation of the photoelectric conversion layer, the first layer structure and the second layer structure includes: at least one side of the photoelectric conversion layer, the first layer structure and the second layer structure at a first specified temperature, making the photoelectric conversion layer, the second layer structure The first-level structure is connected to the second-level structure.

Specifically, one side of the photoelectric conversion layer, the adhesive layer and the waterproof layer is heated to a specified temperature, so that one side of the photoelectric conversion layer, the adhesive layer and the waterproof layer is bonded; further, the first specified temperature is 120 -150°C. Preferably, it is heated to a specified temperature: 120-150° C. by blowing hot air to one side of the photoelectric conversion layer, the adhesive layer and the waterproof layer.

In the process of providing the first laminated structure: first fix the solar cell chip on the station through the plane carrier, and fix it through the frame of the carrier and the suction cup. At this time, the back of the solar cell chip is facing upward; Cut the bonding layer, the length of each side of the bonding layer is greater than the side length of the corresponding side of the solar cell chip, and cover the solar cell chip, and lay the bonding layer on the solar cell The position of the central axis of the chip; optionally, the bonding layer is placed on the central axis of the solar cell chip through the mechanical arm; the waterproof layer is cut according to the size, and the waterproof layer is a back plate, and each of the back plates The sides are all 5-10mm longer than the side corresponding to the adhesive layer, and the cut backboard is placed on the adhesive layer.

Preliminary fixation of the waterproof layer, adhesive layer and solar cell chip after the above placement specifically includes: selecting five points at equal intervals on one side after the three-layer laying for heating by hot air blowing, the temperature of the hot air blowing is 120 -150°C, in this way, during the heating process, the adhesive layer will generate viscosity, and bond the waterproof layer and the solar cell chip, so that the solar cell chip, the adhesive layer and one side of the waterproof layer are bonded and fixed to achieve preliminary fixation. In this way, the problem of misalignment and offset between the back sheet, the adhesive layer and the solar cell chip can be avoided when the first stacked structure is transported and moved, and the relative position accuracy and stability of the three can be ensured.

As shown in Figure 3, step 2: said providing the second laminated structure includes the following sub-steps:

S2-1, providing a substrate layer, the substrate layer is used to carry the annular groove and the third layer structure;

S2-2, providing an annular groove, the annular groove including a specified number of adhesives, the adhesives are annularly distributed on the substrate layer;

S2-3, providing a third layer structure, where the third layer structure is an adhesive layer;

S2-4, putting the third layer structure into the annular groove formed by the bonding member, and disposing it on the substrate layer, the third layer structure is placed in the second designation of the annular groove Location.

Preferably, in sub-step S2-4, the second designated position is the central axis position of the annular groove; wherein, in sub-step S2-1, the substrate layer is set to be an inorganic transparent material or a transparent A kind of polyester material, preferably, the inorganic transparent material is glass containing silica; further, the substrate layer is curved glass, and the surface of the curved glass is wavy; preferably, the The substrate layer is tri-curved tempered glass, and the tri-curved tempered glass has high ultra-white light transmittance; preferably, in sub-step S2-3, the bonding layer is a POE film layer, and in sub-step S2-4 Among them, the bonding member is a butyl rubber strip. Preferably, the specified number of bonding parts is 4-20, wherein each side can be made of a butyl rubber strip; of course, each side can also be two butyl rubber strips and three butyl rubber The four butyl rubber strips are spliced together, and the four butyl rubber strips are placed on the three-curved tempered glass to form an annular groove-like structure, and then the second layer of adhesive layer is cut according to the size , the size of the adhesive layer is the same as that of the adhesive layer, and then the adhesive layer is laid in the annular groove to form the second laminated structure.

As shown in Figure 4, step S3: forming a power generation structure with a photoelectric conversion layer, placing the first stacked structure on the second stacked structure and completing the pre-fixation, the specific steps include the following sub-steps:

S3-1, preliminarily fixing the first laminated structure and the second laminated structure for the first time, and the first fixing is segmental pressing with a plurality of profiling pressing fixtures;

S3-2, preliminarily fixing the first laminated structure and the second laminated structure for a second time, the second fixing being adhesive fixing.

Preferably, in sub-step S3-1, the segmental pressing of the plurality of profiling pressing jigs includes: dividing the first laminated structure into multiple sections, each section corresponding to one of the profiling pressing jigs, to One side of the first laminated structure is used as a reference, and the profiling pressing jigs are aligned and pressed down sequentially. Make the back sheet, adhesive layer, solar cell chip and adhesive layer fit together with the three-curved tempered glass in a wave shape; further, divide the first laminated structure into three sections, and each section corresponds to a curved profiling press Fixtures, and then press down the arc-shaped profiling pressing fixtures in turn to perform fixed shaping. Pressing in sections can improve the stability of pressing and avoid hollowing and misalignment in the middle. Of course, in this application, it can also be divided into two stages, four stages, five stages, etc. to press the first lamination mechanism on the second lamination mechanism, which can also reduce the misalignment, The purpose of offset, wrinkle, and hollowing should belong to the scope of protection of the present invention.

Further, in the sub-step 3-2, the adhesive fixing includes: keeping the profiling pressing fixture in a depressed state, and at a second specified temperature, the second specified temperature completes the first lamination structure, the second lamination Structures and connections between the first stacked structure and the second stacked structure. The adhesive fixing includes: the second designated temperature is 120-150°C. The heating at the second specified temperature to complete the first laminated structure, the second laminated structure, and the bonding and fixing between the first laminated structure and the second laminated structure includes: blowing 120-150 ° C from the edge position of the first laminated structure hot air. Specifically, select 12 heating points from the backplane layer on the outer surface of the bonding part forming the annular groove. Since the annular groove is rectangular, there are four heating points on each side, and then blow hot air at 120-150 ° C. Make the adhesive parts heated to produce viscosity and at the same time fix the laid layers and the three-curved tempered glass, and finally raise the jig and enter the laminator for lamination.

The solar cell chips and the adhesive layer in the first stacked structure are put into the annular groove, and the back plate is placed on the upper end of the adhesive member forming the annular groove, and the two Align the edges of the adhesive layer. In the present application, the lower surface of the solar cell chips of the first stacking structure is pressed against the upper surface of the adhesive layer of the second stacking structure.

To sum up, in the method for forming a power generation module provided by the present invention, a first stacked structure is provided at one station, and then a second stacked structure is provided at another station to form a power generation structure with a photoelectric conversion layer , place the first laminated structure on the second laminated structure and complete pre-fixation, since the first laminated structure is formed by laying stacks on a plane, the position is easier to fix, and there will be no gap between layers If there is a problem of misalignment and wrinkles, then the pre-fixed first laminated structure is placed on the second laminated structure and pressed to form the power generation component, so there will be no hollowing, wrinkles, deviations, etc. The entire solar surface The quality of the product formed after laying the glass is better, which can reduce the manufacturing cost.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "communication", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; may be mechanically connected, may also be electrically connected; may be directly communicated, may also be indirectly communicated through an intermediary, and may be internally communicated between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (15)

1. A method for forming a power generating assembly, comprising the following steps: Provide a first stacked structure, the first stacked structure is formed with a layer structure that converts solar energy into electrical energy, and the first stacked structure includes a photoelectric conversion layer, a first layer structure and a second stacked structure arranged in sequence from bottom to top layer structure; A second laminated structure is provided, the second laminated structure is used to carry the first laminated structure, and the second laminated structure includes a substrate layer, an annular groove and a third layer arranged sequentially from bottom to top structure, the contact portion of the substrate layer and the annular groove is configured as a continuous undulating structure; A power generation structure with a photoelectric conversion layer is formed, the first stacked structure is placed on the second stacked structure and pre-fixed. 2. The method for forming a power generation assembly according to claim 1, wherein said providing the first laminated structure comprises: providing a photoelectric conversion layer, the photoelectric conversion layer is configured as a solar cell chip; providing a first layer structure, the first layer structure is an adhesive layer for bonding the photoelectric conversion layer and the second layer structure; A second layer structure is provided, the second layer structure is a waterproof layer, and the waterproof layer is used for waterproofing; The solar cell chip, the first layer structure, and the second layer structure are sequentially arranged from bottom to top, and the first layer structure and the second layer structure are placed on the first layer of the solar cell chip. at the specified location. 3 . The method for forming a power generation assembly according to claim 2 , wherein the first layer structure is configured to cover the solar cell chip. 4 . 4. The method for forming a power generation assembly according to claim 2, wherein the second layer structure is configured to cover the first layer structure. 5 . The method for forming a power generation assembly according to claim 2 , wherein the backplane is configured as a flexible backplane. 6 . 6. The method for forming a power generation assembly according to claim 2, characterized in that, arranging the solar cell chip, the first layer structure, and the second layer structure sequentially from bottom to top includes: The photoelectric conversion layer, the first layer structure, and the second layer structure are initially fixed. 7. The method for forming a power generation assembly according to claim 6, wherein the preliminary fixation of the photoelectric conversion layer, the first layer structure and the second layer structure comprises: The photoelectric conversion layer, the first layer structure, and the second layer structure are connected at a first prescribed temperature to at least one side of the photoelectric conversion layer, the first layer structure, and the second layer structure. 8. The method for forming a power generation assembly according to claim 1, wherein said providing the second laminated structure comprises: providing a substrate layer for supporting the annular groove and the third layer structure; providing an annular groove, the annular groove comprising a specified number of bonding elements distributed annularly on the substrate layer; providing a third layer structure, the third layer structure being an adhesive layer; The third layer structure is put into the annular groove formed by the bonding member and arranged on the base material layer, and the third layer structure is placed at a second designated position of the annular groove. 9 . The method for forming a power generation component according to claim 8 , wherein the substrate layer is set as one of inorganic transparent material or transparent polyester material. 10 . 10 . The method for forming a power generation component according to claim 9 , wherein the substrate layer is curved glass. 11 . 11 . The method for forming a power generation assembly according to claim 9 , wherein the specified number of bonding pieces is 4 to 20. 12 . 12. The method for forming a power generation assembly according to claim 1, wherein a power generation structure with a photoelectric conversion layer is formed, the first stacked structure is placed on the second stacked structure and pre-fixed , the specific steps include: Preliminarily fixing the first laminated structure and the second laminated structure for the first time, the first fixing is segmental pressing with a plurality of profiling pressing fixtures; The first laminated structure and the second laminated structure are preliminarily fixed for a second time, and the second time of fixing is adhesively fixed. 13. The method for forming a power generation component according to claim 12, wherein the stepwise pressing of the plurality of profiling pressing jigs comprises: The first laminated structure is divided into multiple sections, and each section corresponds to one of the profiling pressing jigs, and the profiling laminating jigs are aligned and pressed down sequentially based on one side of the first laminated structure. 14. The method for forming a power generation assembly according to claim 12, wherein the adhesive fixing comprises: Keeping the pressed state of the profiling pressing fixture, at the second specified temperature, the first laminated structure, the second laminated structure and the connection between the first laminated structure and the second laminated structure are completed. 15. The method for forming a power generation assembly according to any one of claims 7 or 14, characterized in that, The first specified temperature and the second specified temperature are set to 120-150°C.