CN117447092A - Glazed glass and photovoltaic module - Google Patents

Abstract

The invention provides a glazing glass and a photovoltaic module, wherein the glazing glass comprises: a first glass sheet having opposing first and second surfaces, the first surface having a glazed region and a non-glazed region; the coating layer is positioned on the glaze plating area on the first surface, the coating layer comprises a central area and a transition area, the transition area is positioned at a part of the coating layer close to the non-glaze plating area, the central area is positioned at a part of the coating layer far away from the non-glaze plating area, and the stress of the surface of the coating layer positioned at the transition area gradually decreases from the edge close to the non-glaze plating area to the edge close to the central area.

Description

Glazed glass and photovoltaic modules

Technical field

The present invention mainly relates to the field of photovoltaics, and in particular to a kind of glazed glass and photovoltaic components.

Background technique

In order to improve the utilization of the gap light of double-glass modules, the industry usually sets a coating layer with higher reflectivity on the back glass plate of double-glass modules. However, the thickness and composition of the high-reflective film and the thermal expansion coefficient of the main material are different from There are differences in the glass plate, which leads to a large difference in the surface stress of the glass plate between the glazed area and the non-glazed area during the tempering process. During use, the technician found that the glass at the junction of the glazed area and the non-glazed area was relatively large. It is prone to breakage. After studying it, technicians found that the stress on the surface of the glass plate in the glazed area is about 40MPa, while the stress in the non-glazed area can reach 100MPa. Between the glazed area and the non-glazed area The sharp change in stress between the two parts will cause the strength of this location to be relatively weak, and it is prone to breakage when heated or impacted. The higher the degree of tempering, the greater the chance of breakage in this area.

Contents of the invention

The technical problem to be solved by the present invention is to provide a glazed glass and photovoltaic module that ensures a high degree of tempering and prevents sudden changes in surface stress.

In order to solve the above technical problems, the present invention provides a kind of glazed glass, which includes: a first glass plate, the first glass plate has an opposite first surface and a second surface, and the first surface has a glazed area and a non-glazed area. ; The coating layer is located on the glazed area on the first surface, the coating layer includes a central area and a transition area, the transition area is located at the part of the coating layer close to the non-glazed area, and the central area is located at the part of the coating layer away from the non-glazed area, And the stress on the surface of the coating layer located in the transition zone gradually decreases from the edge close to the non-glazed zone to the edge close to the central zone.

In one embodiment of the present invention, the thickness of the coating layer in the central area along the normal direction of the first glass plate is uniform; the thickness of the coating layer in the transition area along the normal direction gradually approaches the non-glazed area from the central area. There is a downward trend in the direction of the area.

In one embodiment of the present invention, the coating layer has a plurality of hollow portions in the transition area, and the sizes of the plurality of hollow portions tend to increase in a direction from the central area to the non-glazed area.

In an embodiment of the present invention, the plurality of hollow portions include a plurality of rows of hollow portion sets parallel to the edge of the transition zone away from the central region, the plurality of hollow portions in each row of hollow portion sets have the same size, and the multiple rows of hollow portions The size of the plurality of hollow portions in the collection shows an increasing trend in the direction from the central area to the non-glazed area.

In one embodiment of the present invention, the coating layer has a plurality of hollow portions in the transition zone, and the distribution density of the plurality of hollow portions shows an increasing trend in the direction from the central area to the non-glazed area.

In an embodiment of the present invention, the shape of the hollow portion includes one or more of semicircle, circle, rectangle, triangle, tooth shape and strip shape.

In one embodiment of the present invention, the glazed area and the coating layer are in a grid shape, and the non-glazed area is in a rectangular shape.

The present invention also provides a photovoltaic module, including: the glazed glass as in the previous embodiment; a second glass plate, the surface of the second glass plate is not glazed; and a battery sheet, the battery sheet is located between the glazed glass and the second between the glass plates, and the battery piece is in contact with the second surface of the glazed glass.

In one embodiment of the present invention, the glazed glass is located on the backlight surface of the battery piece.

In an embodiment of the present invention, the edge of the battery sheet is located within the central area.

Compared with the prior art, the invention provides a kind of glazed glass and the coating layer on the surface of the glass plate in the photovoltaic module has a transition part. By arranging a coating with a gradient in thickness or a hollow with a gradient in size and density at the transition part, the area is made The stress on the surface of the inner glazed glass gradually decreases from the edge close to the non-glazed area to the edge close to the central area without sudden changes, which increases the strength and reduces the risk of breakage.

Description of the drawings

The accompanying drawings are included to provide a further understanding of the present application, and are incorporated in and constitute a part of this application. They illustrate embodiments of the present application and together with the description serve to explain the principles of the present invention. In the attached picture:

Figure 1 is a schematic diagram of the first surface of glazed glass according to an embodiment of the present application.

Figure 2 is a partial schematic diagram of the first surface of glazed glass according to an embodiment of the present application.

Figure 3 is a partial schematic diagram of the first surface of glazed glass according to another embodiment of the present application.

Figure 4 is a schematic diagram of a photovoltaic module according to an embodiment of the present application.

Detailed ways

In order to explain the technical solutions of the embodiments of the present application more clearly, the following will briefly introduce the drawings needed to describe the embodiments. Obviously, the drawings in the following description are only some examples or embodiments of the present application. For those of ordinary skill in the art, without exerting creative efforts, the present application can also be applied according to these drawings. Other similar scenarios. Unless obvious from the locale or otherwise stated, the same reference numbers in the figures represent the same structure or operation.

As shown in this application and claims, words such as "a", "an", "an" and/or "the" do not specifically refer to the singular and may include the plural unless the context clearly indicates an exception. Generally speaking, the terms "comprising" and "comprising" only imply the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or apparatus may also include other steps or elements.

The relative arrangement of components and steps, numerical expressions, and numerical values set forth in these examples do not limit the scope of the application unless specifically stated otherwise. At the same time, it should be understood that, for convenience of description, the dimensions of various parts shown in the drawings are not drawn according to actual proportional relationships. Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the authorized specification. In all examples shown and discussed herein, any specific values are to be construed as illustrative only and not as limiting. Accordingly, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters refer to similar items in the following figures, so that once an item is defined in one figure, it does not need further discussion in subsequent figures.

In the description of this application, it should be understood that the orientation indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom", etc. Or the positional relationship is usually based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description. Without explanation to the contrary, these directional words do not indicate and imply the referred devices or components. It must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the scope of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

For the convenience of description, spatially relative terms can be used here, such as "on...", "on...", "on the upper surface of...", "above", etc., to describe what is shown in the figure. The spatial relationship between one device or feature and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a feature in the figure is turned upside down, then one feature described as "above" or "on top of" other features or features would then be oriented "below" or "below" the other features or features. under other devices or structures". Thus, the exemplary term "over" may include both orientations "above" and "below." The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, it should be noted that the use of words such as "first" and "second" to define parts is only to facilitate the distinction between corresponding parts. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood. To limit the scope of protection of this application. In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant based on his or her judgment, and their detailed meanings are set out herein. stated in the relevant section of the description. Furthermore, the application is required to be understood not merely by the actual terms used, but also by the meaning connoted by each term.

FIG. 1 is a schematic diagram of the first surface of the glazed glass according to one embodiment of the present application. FIG. 2 is a partial schematic diagram of the first surface of the glazed glass according to one embodiment of the present application. With reference to Figures 1-2, the present application provides a glazed glass 10, including a first glass plate 100 and a coating layer 200, wherein the first glass plate 100 has a first surface and a second surface, as shown in Figure 1 It is the first surface of the glazed glass 10 . Specifically, the first surface of the first glass plate 100 has a glazed area 110 and a non-glazed area 120. The coating layer 200 is only located on the glazed area 110, and the coating layer 200 further includes a central area 210 and a transition area 220. The region 210 is located at a part of the coating layer 200 away from the non-glazed region 120 , the transition region 220 is located at a part of the coating layer 200 close to the non-glazed region 120 , and the stress on the surface of the coating layer 220 located at the transition region 220 changes from the region close to the non-glazed region 120 The edges gradually decrease toward the edge closer to the central area 210 .

It can be understood that the present invention aims to solve the problem of sharp changes in stress between the glazed area and the non-glazed area, and based on this purpose, the coating layer 200 is divided into a central area 210 and a transition area 220 , and the stress is in the transition area 220 Smooth changes rather than sudden changes. In practical applications, the coating layer 200 has various shapes. In any case, the glazed glass 10 provided by the present invention ensures that the central area 210 is not directly adjacent to the non-glazed area 120, that is, there is a gap between the two. Transition zone 220.

Figure 2 shows the local specific features in the P area shown in Figure 1. In the embodiment shown in Figures 1-2, the glazed area 110 and the coating layer 200 are grid-shaped, and the non-glazed area 120 is rectangular. In this case, the glazed area 110 is linear, and there are corners in some locations (as shown in Figure 2). At this time, the transition areas 220 are located on both sides of the central area 210, so that the central area 210 does not directly contact the non-glazed area 120. .

Take the part of the glazed area 110 extending along the direction AA' shown in Figure 2 as an example. At this time, the central area 210 extends along the direction AA', and there are transition areas 220 on the left and right sides of the central area 210. For the convenience of understanding, the left and right areas are The transition areas 220 on both sides are named 220a and 220b respectively. Specifically, the stress on the surface of the glazed glass 10 gradually decreases from the left edge to the right edge in the transition area 220a, and gradually decreases from the right edge to the left edge in the transition area 220b.

As shown in Figures 1-2, a preferred embodiment of the present invention is shown. In this embodiment, the coating layer 200 has a plurality of circular hollow portions 221 in the transition area 220, and the sizes of the plurality of hollow portions 221 are not all It is consistent, but shows an increasing trend in the direction from the central area 210 to the non-glazed area 120 . Similarly, taking the glazed area 110 extending along the AA' direction as shown in FIG. 2 as an example, the size of the multiple hollow portions 221 in the transition area 220a on the left side of the central area 210 increases from the central area 210 toward the non-glazed area 120 direction (that is, from right to left as shown in Figure 2) shows an increasing trend. Similarly, the size of the plurality of hollow portions 221 in the transition area 220b on the right side of the central area 210 is in the direction from the central area 210 to the non-glazed area 120 (that is, from left to right as shown in Figure 2) Showing an increasing trend.

Further, in this embodiment, the plurality of hollow portions 221 of the transition area 220a include three rows of hollow portion sets parallel to the edge S1 of the transition area 220 away from the central area 210, named 230a, 240a and 250a respectively. Each of the hollow portion sets 230a, 240a and 250a has a plurality of hollow portions 221. For the convenience of understanding, the hollow portions in the hollow portion sets 230a, 240a and 250a are respectively referred to as 231a, 241a and 251a below. Specifically, the multiple hollow portions 221 in each row of the hollow portion set have the same size, that is, the multiple hollow portions 231a in the hollow portion set 230a have the same size, and the multiple hollow portions 241a in the hollow portion set 240a have the same size, The plurality of hollow portions 251a in the hollow portion set 250a have the same size. Furthermore, the size of the multiple hollow portions 221 in the three rows of hollow portion sets 230a, 240a and 250a shows an increasing trend in the direction from the central area 210 to the non-glazed area 120, that is, the hollow portions 231a, 241a The size relationship with 251a is: 231a>241a>251a. Since in this embodiment, the hollow portions 231a, 241a, and 251a each appear in a circular or semicircular shape, the above size relationship may be understood as aperture/diameter size.

Similarly, the multiple hollow portions 221 of the transition area 220b include three rows of hollow portion sets parallel to the edge S2 of the transition area 220 away from the central area 210, named 230b, 240b and 250b respectively. The hollow parts in the hollow part sets 230b, 240b and 250b are respectively represented as 231b, 241b and 251b. The plurality of hollow portions 231b in the hollow portion set 230b are of the same size, the plurality of hollow portions 241b in the hollow portion set 240b are of the same size, the plurality of hollow portions 251b in the hollow portion set 250b are of the same size, and the hollow portions 231b, 241b and The size relationship of 251b is: 231b>241b>251b.

During the tempering process of the glass, the cooling rate of the hollow part 221 is faster than that of the other positions, and the surface stress of the glazed glass 10 at the position of the hollow part 221 is greater than that of the other parts (the central area 210 and the non-hollow parts of the transition part 220). The hollow portion 221 near the edge of the transition zone 220 gradually becomes larger, thereby achieving the effect of gradually increasing the stress.

It can be understood that in other embodiments of the present invention, the number of rows of the hollow portion set can be more or less (at least two rows), and the shape of the hollow portion 221 can also be semicircular, circular, rectangular, One or more of triangular, tooth-shaped and strip-shaped, this application does not specifically limit it here. Figure 3 is a partial schematic diagram of the first surface of glazed glass according to another embodiment of the present application. In this embodiment, the hollow portion 221 is a rectangle, and the size of the rectangle gradually moves from the central area 210 to the non-glazed area 120 (not shown). out) shows an increasing trend.

Furthermore, in some other embodiments of the present invention, the sizes of the plurality of hollow portions 221 in the transition area 220 are consistent, and the distribution density of the plurality of hollow portions 221 gradually approaches from the central area 210 to the non-glazed area. There is an increasing trend in the direction of 120. That is to say, the closer to the central area 210, the smaller the number of hollow portions 221, and the looser the arrangement; the closer to the non-glazed area 120, the greater the number of hollow portions 221, and the tighter the arrangement. This method can also achieve the same effect of gradually increasing the stress from a loosely arranged position to a tightly arranged position.

Furthermore, in some other embodiments of the present invention, the transition region 220 part of the coating layer 200 may not be provided with a hollow part, but the gradient of the stress may be achieved by gradually changing the thickness of the coating layer 200 . It can be understood that, when the paint material remains unchanged, the smaller the thickness of the coating layer 200 , the closer the stress on the surface of the glazed glass 10 at this position is to the non-glazed area 120 . Specifically, the thickness of the coating layer 200 in the central area 210 along the normal direction of the first glass plate 100 (the BB' direction as shown in Figure 2) is uniform, and the thickness of the coating layer 200 in the transition area 220 along the normal line BB' direction is The thickness shows a decreasing trend in the direction from the central area 210 to the non-glazed area 120 , that is to say, the thickness of the coating layer 200 is smaller in the transition area 220 as it approaches the non-glazed area 120 .

Figure 4 is a schematic diagram of a photovoltaic module according to an embodiment of the present application. Referring to FIG. 4 , the present invention also provides a photovoltaic module 20 , including the glazed glass 10 as in the previous embodiment, a second cell piece 30 and a glass plate (the angle is not shown). The second glass plate is an ordinary glass plate with an unglazed surface. The battery piece 30 is located between the glazed glass 10 and the second glass plate, and is in contact with the first surface of the glazed glass 10 , that is, the surface on which the coating layer 200 is provided. In contact, the glazed glass 10 is located on the backlight surface of the cell piece 30 and will not affect the reflection of the gap light. Furthermore, in this embodiment, the edge 40 of the cell sheet 30 is located within the central area 210 to prevent light transmission.

The basic concepts have been described above. It is obvious to those skilled in the art that the above disclosure of the invention is only used as an example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements and corrections are suggested in this application, so such modifications, improvements and corrections still fall within the spirit and scope of the exemplary embodiments of this application.

At the same time, this application uses specific words to describe the embodiments of the application. For example, "one embodiment", "an embodiment", and/or "some embodiments" means a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that “one embodiment” or “an embodiment” or “an alternative embodiment” mentioned twice or more at different places in this specification does not necessarily refer to the same embodiment. . In addition, certain features, structures or characteristics in one or more embodiments of the present application may be appropriately combined.

Similarly, it should be noted that in order to simplify the presentation of the disclosure of the present application and thereby facilitate understanding of one or more embodiments of the invention, in the foregoing description of the embodiments of the present application, multiple features are sometimes combined into one embodiment. accompanying drawings or descriptions thereof. However, this method of disclosure does not imply that the subject matter of the application requires more features than are mentioned in the claims. In fact, embodiments may have less than all features of a single disclosed embodiment.

In some embodiments, numbers are used to describe the quantities of components and properties. It should be understood that such numbers used to describe the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Grooming. Unless otherwise stated, "about," "approximately," or "substantially" means that the stated number is allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending on the desired features of the individual embodiment. In some embodiments, numerical parameters should account for the specified number of significant digits and use general digit preservation methods. Although the numerical ranges and parameters used to confirm the breadth of the ranges in some embodiments of the present application are approximations, in specific embodiments, such numerical values are set as accurately as feasible.

Although the present application has been described with reference to the current specific embodiments, those of ordinary skill in the art should realize that the above embodiments are only used to illustrate the present application, and may also be made without departing from the spirit of the present application. Various equivalent changes or substitutions are made. Therefore, as long as the changes and modifications to the above-described embodiments are within the scope of the essential spirit of the present application, they will fall within the scope of the claims of the present application.

Claims (10)

1. A kind of glazed glass, characterized in that it includes: A first glass plate having opposite first and second surfaces, the first surface having a glazed area and a non-glazed area; a coating layer located on the glazed area on the first surface; the coating layer includes a central area and a transition area; the transition area is located at a portion of the coating layer close to the non-glazed area; The central area is located in the part of the coating layer away from the non-glazed area, and the stress on the surface of the coating layer located in the transition area gradually increases from the edge close to the non-glazed area to the edge close to the central area. decrease. 2. The glazed glass as claimed in claim 1, characterized in that: The thickness of the coating layer in the central area along the normal direction of the first glass plate is uniform; The thickness of the coating layer in the transition area along the normal direction shows a decreasing trend in the direction from the central area to the non-glazed area. 3. The glazed glass according to claim 1, characterized in that the coating layer has a plurality of hollow parts in the transition zone, and the sizes of the plurality of hollow parts gradually approach from the central zone to the The direction of the non-glazed area shows an increasing trend. 4. The glazed glass according to claim 3, wherein the plurality of hollow parts comprise a set of multiple rows of hollow parts parallel to the edge of the transition zone away from the central zone, and each row of hollow parts The plurality of hollow portions in the set have the same size, and the sizes of the plurality of hollow portions in the plurality of rows of hollow portions increase in a direction gradually approaching the non-glazed area from the central area. trend. 5. The glazed glass according to claim 1, wherein the coating layer has a plurality of hollow parts in the transition zone, and the distribution density of the plurality of hollow parts gradually increases from the central zone to the There is an increasing trend toward the non-glazed area. 6. The glazed glass according to any one of claims 3 to 5, wherein the shape of the hollow portion includes one of semicircle, circle, rectangle, triangle, tooth shape and strip shape or Various. 7. The glazed glass according to any one of claims 1 to 5, wherein the glazed area and the coating layer are in a grid shape, and the non-glazed area is in a rectangular shape. 8. A photovoltaic module, characterized by comprising: The glazed glass according to any one of claims 1 to 7; a second glass plate, the surface of the second glass plate being unglazed; and The battery sheet is located between the glazed glass and the second glass plate, and the battery sheet is in contact with the second surface of the glazed glass. 9. The photovoltaic module according to claim 8, wherein the glazed glass is located on the backlight surface of the cell sheet. 10. The photovoltaic module according to claim 9, wherein the edge of the cell sheet is located within the range of the central area.