Photovoltaic panel frame and photovoltaic panel

Abstract

The present application provides a photovoltaic module frame and a photovoltaic module. The photovoltaic module frame includes a carrier plate and a baffle, and also includes: a partition plate, which is arranged on the carrier plate and adjacent to the baffle; and a glue baffle plate, which is connected to the baffle plate and opposite to the carrier plate along a first direction, the glue baffle plate has a glue baffle slope facing the carrier plate and an end face opposite to the baffle plate along a second direction, the end face is located on the right side of the partition plate along the second direction, the partition plate, the glue baffle plate and the baffle plate form a glue storage chamber, and the opening of the glue storage chamber faces away from the carrier plate, wherein the first direction intersects with the second direction. The photovoltaic module frame and photovoltaic module of the present application can prevent water vapor from penetrating into the gaps between the layers of the laminate, and can prevent the adhesive from overflowing to the top surface of the laminate when the photovoltaic module frame and the laminate are connected using adhesive.

Description

Technical Field

[0001] The present application mainly relates to the field of photovoltaic technology, and specifically to a photovoltaic module frame and a photovoltaic module. Background Art

[0002] Photovoltaic modules are core components in photovoltaic power generation systems. Photovoltaic modules include laminates and photovoltaic module frames arranged around the laminates. During the use of photovoltaic modules, dust will accumulate on the surface of the laminates located at the bottom in the height direction. The dust will block part of the surface of the laminates, causing hot spots when the photovoltaic modules are working, reducing the power generation efficiency of the modules. In the related art, although there are technical solutions to solve the above-mentioned dust accumulation problem, there are still problems such as the adhesive (such as silicone) overflowing onto the surface of the laminates during framing and the inability to effectively seal the laminates.

[0003] Therefore, how to solve the dust accumulation problem of photovoltaic modules while preventing the adhesive from overflowing onto the surface of the laminate and effectively seal the laminate are issues that need to be addressed urgently. Summary of the invention

[0004] The technical problem to be solved by the present application is to provide a photovoltaic module frame and a photovoltaic module, which can prevent the photovoltaic module from dusting and prevent the adhesive from overflowing to the surface of the laminate, and effectively seal the laminate.

[0005] The technical solution adopted by the present application to solve the above-mentioned technical problems is a photovoltaic component frame, which includes a supporting plate and a baffle, wherein the baffle is connected to one end of the supporting plate, and also includes: a partition plate, which is arranged on the supporting plate and adjacent to the baffle; and a glue blocking plate, which is connected to the baffle and opposite to the supporting plate along a first direction, the glue blocking plate having a glue blocking slope facing the supporting plate and an end face opposite to the baffle along a second direction, the end face being located on the right side of the partition plate in the second direction, the partition plate, the baffle plate and the glue blocking plate form a glue storage chamber, and the glue storage chamber has an opening facing away from the supporting plate, wherein the first direction intersects with the second direction.

[0006] In one embodiment of the present application, the upper adhesive film layer in the laminate connected to the photovoltaic module frame is flush with or higher than the top of the partition plate in the first direction.

[0007] In one embodiment of the present application, the partition plate is inclined along the second direction away from the baffle.

[0008] In one embodiment of the present application, the angle between the partition plate and the first direction is greater than 0° and less than 20°.

[0009] In one embodiment of the present application, the glue blocking slope is inclined downward along the second direction, wherein the partition plate points to the glue blocking slope to guide the adhesive to the glue blocking slope.

[0010] In an embodiment of the present application, the end surface is spaced from the partition plate by 0.5 mm to 1 mm along the second direction.

[0011] In one embodiment of the present application, the distance between the baffle and the partition plate along the second direction, the size of the partition plate along the second direction, and the distance between the end surface and the partition plate along the second direction are equal.

[0012] In one embodiment of the present application, a surface of the carrier plate facing upward along the first direction has a rubber guiding slope, and the rubber guiding slope is inclined upward along the second direction.

[0013] In one embodiment of the present application, the surface of the carrier plate facing upward along the first direction further has a wavy bonding surface, and the wavy bonding surface is adjacent to the rubber guiding slope along the second direction and away from the rubber blocking plate along the second direction.

[0014] In an embodiment of the present application, the end surface is parallel to the first direction plane.

[0015] To solve the above technical problems, the present application also proposes a photovoltaic module, comprising: the photovoltaic module frame as described above; and a laminate, wherein the carrier plate is connected to the bottom surface of the laminate, and the side surface of the laminate is abutted against the end surface.

[0016] The photovoltaic module frame and photovoltaic module of the present application can prevent water vapor from entering the gaps between the layers of the laminate, and can prevent the adhesive from overflowing to the top surface of the laminate when the photovoltaic module frame and the laminate are connected using adhesive. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below with reference to the accompanying drawings, wherein:

[0018] Figure 1 It is a three-dimensional schematic diagram of a photovoltaic module frame according to an embodiment of the present application;

[0019] Figure 2 yes Figure 1 A schematic cross-sectional view of the frame of a photovoltaic module;

[0020] Figure 3 yes Figure 2 An enlarged view of the rectangular frame portion of the PV panel frame;

[0021] Figure 4A , Figure 4B and Figure 4C It is a schematic diagram of an intermediate state of installing a laminate in one embodiment of the present application.

[0022] Reference numerals

[0023] Adhesive 10 Glue baffle 170

[0024] Photovoltaic module frame 100 Rubber slope 171

[0025] End surface 172 of the carrier plate 110

[0026] Glue guide slope 111 Glue storage room 180

[0027] Wave-shaped bonding surface 112 opening 181

[0028] Baffle 120 Photovoltaic module 190

[0029] First side 121 Glass layer 191

[0030] Second side 122 Upper film layer 192

[0031] Base plate 130 Battery cell 193

[0032] Mounting plate 131 Lower film layer 194

[0033] First side plate 140 Back plate 195

[0034] Second side plate 150 side 196

[0035] Partition plate 160 Top surface 197

[0036] Top 161 Bottom 198 DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below with reference to the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein, and therefore the present application is not limited to the specific embodiments disclosed below.

[0039] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0040] In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and cannot be understood as limiting 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 at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article. In addition, it is required to understand this application not only by the actual terms used, but also by the meaning implied by each term.

[0041] Next, the photovoltaic module frame and photovoltaic module of the present application are described through specific embodiments.

[0042] Figure 1 is a three-dimensional schematic diagram of a photovoltaic module frame according to an embodiment. Figure 2 yes Figure 1 Schematic diagram of the cross section of the photovoltaic panel frame. Figure 1 and Figure 2 As shown, the photovoltaic component frame 100 includes a supporting plate 110 and a baffle 120 . The supporting plate 110 is used to connect to the bottom surface of the laminate (not shown), and the space between the baffle 120 and the laminate is used to accommodate the adhesive for bonding the laminate and the photovoltaic component frame 100 .

[0043] Specifically, Figure 1 and Figure 2 As shown, the photovoltaic assembly frame 100 also includes a bottom plate 130, a first side plate 140 and a second side plate 150. The bearing plate 110 is arranged opposite to the bottom plate 130 along the first direction D1, the first side plate 140 and the second side plate 150 are arranged opposite to each other along the second direction D2, and the two opposite sides along the first direction D1 are connected to the bearing plate 110 and the bottom plate 130 respectively. The baffle 120 has a first side edge 121 and a second side edge 122 opposite to each other along the first direction D1. The first side edge 121 of the baffle 120 is connected to the first side plate 140. The bottom plate 130 has a mounting plate 131 located on the right side of the second side plate 150 along the second direction D2, and the mounting plate 131 can be used to mount the photovoltaic assembly frame 100 on a guide rail (or a slat).

[0044] like Figure 2As shown, the photovoltaic module frame 100 also includes a partition plate 160 and a rubber baffle plate 170. The partition plate 160 is arranged at the junction of the carrier plate 110 and the baffle plate 120. One end of the rubber baffle plate 170 is connected to the baffle plate 120 and is opposite to the carrier plate 110 along the first direction D1. The rubber baffle plate 170 has a rubber baffle slope 171 facing the carrier plate 110 and an end face 172 opposite to the baffle plate 120 along the second direction D2, and the end face 172 is located on the right side of the partition plate 160 along the second direction D2. When the photovoltaic module frame is connected to the laminate, the side of the laminate abuts against the end face 172. Since the end face 172 is located on the right side of the partition plate 160 along the second direction D2, the end face 172 prevents the laminate from contacting the partition plate 160. In some embodiments, the end surface 172 is parallel to the first direction D1, so that the contact between the adhesive plate 170 and the laminate is surface contact, which is beneficial to improve the stability of the connection between the photovoltaic module frame and the laminate, and can prevent the adhesive plate 170 from crushing the glass layer in the laminate.

[0045] Next, through Figure 3 shown Figure 2 The enlarged view of the rectangular frame portion further illustrates the above content.

[0046] refer to Figure 3 As shown, the end surface 172 is located on the right side of the partition plate 160 along the second direction D2. Figure 4C The front view schematic diagram of the photovoltaic module frame 100 connected to the laminate 190 is shown. The laminate 190 is composed of a glass layer 191, an upper film layer 192, a battery cell 193, a lower film layer 194 and a back plate 195 from top to bottom along the first direction D1. The film layer can be selected from ethylene-vinyl acetate copolymer (EVA), polyolefin thermoplastic elastomer (POE) or a film (EPE) composited with EVA and POE. Figure 4C As shown, the photovoltaic component frame 100 in the embodiment of the present application is known as a non-A-side frame structure in the photovoltaic field, and the top surface of the laminate 190 is flush with the top surface of the rubber baffle 170, so that dust, rainwater, etc. on the laminate 190 will not gather on the top surface of the laminate.

[0047] Combination Figure 3 and Figure 4CAs shown, when the photovoltaic module frame 100 is connected to the laminate 190, the top 161 of the partition 160 is flush with or higher than the upper film layer 192 along the first direction D1. The top 161 of the partition 160 refers to the highest position of the partition 160 in the first direction D1. The top 161 of the partition 160 is flush with or higher than the upper film layer 192 in the first direction D1, which is conducive to guiding the adhesive 10 to the top of the upper film layer 192 when the adhesive 10 is used to connect the photovoltaic module frame 100 and the laminate 190, thereby ensuring that the adhesive 10 covers the upper film layer 192, so as to ensure that the adhesive seals the gaps between the layers and prevents water vapor from entering the gaps between the layers.

[0048] Then, if Figure 3 and Figure 4C The end surface 172 abuts against the side surface 196 of the laminate 190. Since the end surface 172 is located on the right side of the partition plate 160 along the second direction D2, the end surface 172 blocks the junction between the laminate 190 and the partition plate 160, thereby preventing the partition plate 160 from squeezing through the glass layer 191 in the laminate 190. Figure 4C As shown, the end face 172 is a plane. When the end face 172 abuts against the side face 196 of the laminate 190, compared with line contact and point contact, the surface contact between the end face 171 and the side face 196 can prevent the end 172 from causing stress concentration in the glass layer 191, thereby preventing the glass layer 191 from breaking.

[0049] From the above, it can be seen that the present application defines the positional relationship between the top of the partition plate and the upper film layer of the laminate in the first direction D1, and the positional relationship between the end face of the adhesive baffle and the partition plate in the second direction D2, thereby ensuring effective sealing of the laminate while preventing the partition plate from squeezing the glass layer in the laminate.

[0050] refer to Figure 3 As shown, in one embodiment, the distance d1 between the end surface 172 and the partition plate 160 along the second direction D2 is 0.5 mm to 1 mm, and d1 can be 0.5 mm, 0.8 mm or 1 mm. The present application has found that setting the distance d1 to the above numerical range can prevent the adhesive from overflowing to the top surface of the laminate. Next, in combination with FIG. 4A to FIG. 4C The intermediate state of installing the laminate in one embodiment is described in detail with reference to the schematic diagram shown.

[0051] refer to Figure 4A As shown, glue is applied at the glue application location of the photovoltaic module frame 100, and the adhesive 10 can be silicone. After the glue application is completed, the laminate 190 is pushed toward the photovoltaic module frame 100, and the adhesive 10 is squeezed by the laminate 190 and flows and spreads on the photovoltaic module frame 100. Figure 4AArrows are used to illustrate the flow path of the adhesive 10 after being squeezed. Figure 4A As shown by the middle arrow, part of the adhesive 10 flows toward the right on the carrier plate 110 along the second direction D2 , and another part of the adhesive 10 flows toward the left on the carrier plate 110 along the second direction D2 .

[0052] Then, the adhesive flowing to the left cannot continue to flow to the left after encountering the partition plate 160 due to being blocked by the partition plate 160. The partition plate 160 has a guiding effect on the adhesive, and under the guiding effect of the partition plate 160, the adhesive will flow upward along the direction of the partition plate 160 after encountering the partition plate 160.

[0053] refer to Figure 4B As shown, when the laminate 190 moves toward the photovoltaic module frame 110, the distance between the two gradually decreases, and a gap A is formed between the laminate 190 and the photovoltaic module frame 110, which is roughly along the first direction D1. As the laminate 190 continues to move, the size of the gap A in the second direction D2 gradually decreases, and the adhesive is squeezed more and more, and begins to flow upward along the gap. The distance d1 is set to 0.5mm to 1mm in the present application to slow down the speed of the adhesive flowing upward along the gap between the partition plate 160 and the laminate 190, thereby avoiding the adhesive overflowing to the top surface 197 of the laminate 190 due to the excessively fast flow rate of the adhesive.

[0054] refer to Figure 3 As shown, in one embodiment, the distance d3 between the baffle 120 and the partition 160 along the second direction D2, and the dimension d2 of the partition 160 along the second direction D2 are equal to the distance d1. In this way, a reasonable processing width is ensured while avoiding the adhesive from overflowing onto the top surface of the laminate, which is beneficial to the production and manufacturing of the photovoltaic module frame. The partition 160 and the baffle 120 are connected by an arc C, and the dimension d2 refers to the distance between the junction of the partition 160 and the arc C and the rightmost end of the partition 160 in the second direction D2. It should be understood that the equality of the distance d1, the dimension d2 and the distance d3 is not limited to being strictly equal to the three, and a certain difference between any two of them is allowed. For example, the situation where the difference between any two of them is less than 1 mm satisfies the equality described in this application.

[0055] Back to Figure 4A As described above, the adhesive flows upward along the first direction D1 along the direction of the partition plate 160 under the guiding effect of the partition plate 160. Figure 3 and Figure 4A As shown in FIG. 1 , as the adhesive flows, the adhesive meets the adhesive blocking slope 171 of the adhesive blocking plate 170. Figure 2 and Figure 3As shown, the partition plate 160 is inclined away from the baffle plate 120 along the second direction D2, the adhesive blocking slope 171 is inclined downward along the second direction D2, and the partition plate 160 points to the adhesive blocking slope 171. The partition plate 160, the baffle plate 120 and the adhesive blocking plate 170 form an adhesive storage chamber 180, and the opening 181 of the adhesive storage chamber 180 is away from the baffle plate 120, or in other words, the opening 181 of the adhesive storage chamber 180 is generally oriented toward the second direction D2. The above structure is conducive to introducing the adhesive into the adhesive storage chamber 180, which is conducive to ensuring that the amount of adhesive inside the adhesive storage chamber 180 is sufficient and improving the long-term reliability of the photovoltaic module; on the other hand, it is conducive to preventing the adhesive from overflowing to the top surface of the laminate.

[0056] Next, the above technical effects are described. Figure 2 and Figure 3 As shown, under the guiding effect of the partition plate 160, the adhesive meets the adhesive blocking slope 171 of the adhesive blocking plate 170. Since the partition plate 160 points to the adhesive blocking slope 171, the flow direction of the adhesive is limited to "flowing along the partition plate 160 to the adhesive blocking slope 171". Figure 4B As shown, the above restriction on the flow direction of the adhesive prevents the adhesive from flowing along the gap between the photovoltaic module frame 100 and the laminate 190 along the first direction D1 to the surface of the laminate. Figure 3 As shown, in some embodiments, the angle α between the partition plate 160 and the first direction D1 is greater than 0° and less than 20°. It should be understood that the angle of the partition plate 160 should meet the requirement of "the partition plate points to the rubber retaining slope".

[0057] In addition, back to Figure 2 and Figure 3 As shown, since the adhesive blocking slope 171 is inclined downward along the second direction D2, after the adhesive meets the adhesive blocking slope 171, the adhesive blocking slope 171 will guide part of the adhesive along the slope surface into the adhesive storage chamber 180, as shown in FIG. Figure 4A The adhesive blocking slope 171 will also guide part of the adhesive downward along the slope surface to the laminate, such as Figure 4B As shown by the arrow in the reference Figure 4B As shown, thanks to the special inclined design of the adhesive blocking slope 171, the adhesive is guided downward along the slope to the laminate, rather than flowing to the surface of the laminate along the gap between the photovoltaic module frame 100 and the laminate 190 along the first direction D1. It should be noted that the degree of realization of the above technical effect of the adhesive blocking slope is closely related to the design of "the partition plate points to the adhesive blocking slope". The partition plate pointing to the adhesive blocking slope helps to avoid the situation where part of the adhesive overflows to the top surface of the laminate because it does not meet the adhesive blocking slope; or conversely, the partition plate pointing to the adhesive blocking slope helps to guide all the adhesive flowing upward along the first direction D1 to the adhesive blocking slope, and then guide the adhesive through the adhesive blocking slope.

[0058] refer to Figure 4B As shown, as described above, the partition plate 160 is inclined along the second direction D2 away from the baffle 120, or in other words, the partition plate 160 is inclined along the second direction D2 toward the side 196. There is a gap B between the partition plate 160 and the side 196 of the laminate 190. The partition plate 160 is inclined toward the side 196 so that the size of the gap B in the second direction D2 is reduced. In this way, when the adhesive is squeezed by the laminate 190 and flows upward along the first direction D1, the size of the gap B in the second direction D2 is small, and the flow rate of the adhesive flowing upward from the gap B along the first direction D1 is small, so that the adhesive can be prevented from overflowing to the top surface of the laminate 190 due to a higher flow rate.

[0059] Back to Figure 2 As shown, in one embodiment, the surface of the carrier plate 110 facing upward along the first direction D1 has a rubber guiding slope 111, and the rubber guiding slope 111 is inclined upward along the second direction D2. Figure 4A As shown, the inclined adhesive guiding slope 111 has a guiding effect on the adhesive 10, which helps to guide the adhesive 10 to the left side of the carrier plate 110. Figure 2 As shown, in some embodiments, the surface of the carrier plate 110 facing upward along the first direction D1 has a wavy bonding surface 112, and the wavy bonding surface 112 is adjacent to the adhesive guiding slope 111 along the second direction D2 and is away from the baffle 120 along the second direction D2. Figure 4C As shown, the wavy bonding surface 112 increases the contact area between the photovoltaic component frame 100 and the adhesive 10 , thereby improving the reliability of the connection between the laminate 190 and the photovoltaic component frame 110 .

[0060] On the other hand, the present application also provides a photovoltaic module. Figure 4C As shown, the photovoltaic module includes: the photovoltaic module frame 100 and the laminate 190 as described above. The carrier plate 110 is connected to the bottom surface 198 of the laminate 190, and the side surface 196 of the laminate 190 is in contact with the end surface 172. Figure 4C As shown, the sealant 10 covers the glass layer 191, the upper film layer 192, the cell 193, the lower film layer 194 and the back plate 195, so as to prevent moisture from penetrating into the gaps between the layers. In addition, thanks to the design of the photovoltaic module frame 100 described above, when the adhesive 10 is used to connect the photovoltaic module frame 100 and the laminate 190, no adhesive overflows onto the laminate 190.

[0061] The basic concepts have been described above. Obviously, for those skilled in the art, the above application disclosure is only 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 amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0062] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to 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 in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0063] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

Claims

1. A photovoltaic module frame, comprising a bearing plate and a baffle, wherein the baffle is connected to one end of the bearing plate, characterized in that: Also includes: A partition plate, disposed on the carrying plate and adjacent to the baffle; as well as A glue blocking plate is connected to the baffle plate and is opposite to the supporting plate along a first direction. The glue blocking plate has a glue blocking slope facing the supporting plate and an end face opposite to the baffle plate along a second direction, and the end face is located on the right side of the partition plate in the second direction. The partition plate, the baffle plate and the glue blocking plate form a glue storage chamber, and the glue storage chamber has an opening facing away from the baffle plate. The glue blocking slope is inclined downward along the second direction, and the partition plate points to the glue blocking slope, so as to guide the adhesive to the glue blocking slope, wherein the first direction intersects with the second direction.

2. The photovoltaic module frame according to claim 1, characterized in that: The upper adhesive film layer in the laminate connected to the photovoltaic component frame is flush with or higher than the top of the partition plate in the first direction.

3. The photovoltaic module frame according to claim 1, characterized in that: The partition plate is inclined away from the baffle plate along the second direction.

4. The photovoltaic module frame according to claim 3, characterized in that: The angle between the partition plate and the first direction is greater than 0° and less than 20°.

5. The photovoltaic module frame according to claim 1, characterized in that: The end surface is spaced 0.5 mm to 1 mm from the partition plate along the second direction.

6. The photovoltaic module frame according to claim 5, characterized in that: The distance between the baffle and the partition plate along the second direction, the size of the partition plate along the second direction, and the distance between the end surface and the partition plate along the second direction are equal.

7. The photovoltaic module frame according to claim 1, characterized in that: The surface of the carrying plate facing upward along the first direction has a rubber guiding slope, and the rubber guiding slope is inclined upward along the second direction.

8. The photovoltaic module frame according to claim 7, characterized in that: The surface of the carrier plate facing upward along the first direction further comprises a wavy bonding surface, and the wavy bonding surface is adjacent to the rubber guiding slope along the second direction and is away from the rubber blocking plate along the second direction.

9. The photovoltaic module frame according to claim 1, characterized in that: The end surface is parallel to the first direction plane.

10. A photovoltaic module, characterized in that: include: The photovoltaic module frame according to any one of claims 1 to 9; as well as A laminate, wherein the carrier plate is connected to the bottom surface of the laminate, and the side surface of the laminate is in contact with the end surface.

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