Mounting frame and photovoltaic module
By eliminating the cavity structure in the installation frame design and adopting an innovative connection method between the support and load-bearing parts, the problem of dust and rain accumulation in photovoltaic modules has been solved, material costs have been reduced, and power generation efficiency and economy have been improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 通威太阳能(盐城)有限公司
- Filing Date
- 2025-03-12
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional photovoltaic module frame designs suffer from dust and rain accumulation problems, and the high material costs affect power generation efficiency and economic viability.
The mounting frame adopts a cavity-free structure, and through the design of the support and load-bearing parts, corner bracket connections are eliminated. Foldable connections and snap-lock closures are used to reduce material usage and lower costs.
This has resulted in reduced material costs, less dust and rain accumulation, improved power generation efficiency, reduced component cleaning frequency, and guaranteed returns.
Smart Images
Figure CN224329420U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic technology, and in particular to an mounting frame and a photovoltaic module. Background Technology
[0002] Traditional photovoltaic (PV) module frames have a locking section (generally called the frame A-side) to secure the edge of the front panel of the laminated components. The frame A-side primarily prevents the PV laminate from detaching. The thickness of the frame A-side is greater than the front glass, causing dust to easily accumulate on the front of the PV module. This leads to dust and rain accumulation problems after prolonged outdoor use, ultimately affecting the module's power generation. Furthermore, traditional aluminum frames consist of two long frames and two short frames, each with its own cavity. The long and short frames are connected by corner brackets inserted into these cavities. Traditional frame designs rely on corner brackets and require cavities, resulting in high material costs and hindering cost reduction and efficiency improvements. Utility Model Content
[0003] Therefore, it is necessary to provide a mounting frame. The mounting frame of this invention eliminates the cavity structure, allowing connection without corner brackets, thus significantly reducing material costs and achieving cost reduction and efficiency improvement.
[0004] One embodiment of this application provides a mounting frame.
[0005] An mounting frame includes a frame body, an abutment, and a limiting member. The frame body includes a load-bearing portion, a support portion, and a mounting portion. The load-bearing portion and the mounting portion are spaced apart. The support portion is disposed between and connected to the load-bearing portion and the mounting portion. The surface of the load-bearing portion away from the support portion forms a load-bearing surface. A first end and a second end of the load-bearing portion protrude from the support portion along its width direction. The abutment is connected to the first end. The limiting member is connected to the end of the abutment that is away from the load-bearing portion. The limiting member, the abutment, and the load-bearing surface together form a mounting groove for mounting a laminate. The opening of the mounting groove faces the second end.
[0006] In some embodiments, the length L1 of the first end protruding from the support is less than the length L2 of the second end protruding from the support.
[0007] In some embodiments, the ratio between the length L1 of the first end protruding from the support and the length L2 of the second end protruding from the support is 1:2 to 1:4.
[0008] In some embodiments, the connection between the support portion and the load-bearing portion is a rounded transition; preferably, the radius R1 of the rounded transition at the connection between the support portion and the load-bearing portion is ≥1.5.
[0009] In some embodiments, the connection between the support portion and the mounting portion is a rounded transition; preferably, the radius of the rounded corner R2 of the connection between the support portion and the mounting portion is ≥1.5.
[0010] In some embodiments, the frame body, the abutment, and the limiting member are connected as a single unit.
[0011] In some embodiments, the frame body further includes a reinforcing portion, one end of which is connected to the bearing portion, and the other end of which is connected to the mounting portion or the supporting portion.
[0012] In some embodiments, one end of the reinforcing part is detachably connected to the bearing part, and the other end of the supporting part is detachably connected to the mounting part or the supporting part.
[0013] In some embodiments, one end of the reinforcing part and the supporting part are provided with a rotating groove and a rotating protrusion, respectively. The reinforcing part and the supporting part are detachably connected by the interlocking of the rotating groove and the rotating protrusion.
[0014] In some embodiments, the mounting portion is provided with a clearance groove and a blocking member movably connected to the mounting portion. When the blocking member is in the reset state, one end is connected to the edge of the clearance groove and the other end extends toward the support portion. The blocking member can at least partially retract into the clearance groove under the action of external force. The other end of the reinforcing portion can abut against the blocking member in the reset state.
[0015] In some embodiments, the mounting portion protrudes from the support portion at its third and fourth ends along its width direction, so that the frame body as a whole has an I-shaped structure.
[0016] In some embodiments, the length L3 of the third end protruding from the support is less than the length L4 of the fourth end protruding from the support.
[0017] In some embodiments, the ratio between the length L3 of the third end protruding from the support and the length L4 of the fourth end protruding from the support is 1:3 to 1:5.
[0018] In some embodiments, the length L4 of the fourth end protruding from the support is greater than the length L2 of the second end protruding from the support.
[0019] In some embodiments, the length L3 of the third end protruding from the support is equal to the length L1 of the first end protruding from the support.
[0020] In some embodiments, the frame body further includes a mounting protrusion for engaging the pressure block, the mounting protrusion protruding from the surface of the mounting portion toward the support portion and extending toward the support portion, and the gap between the mounting protrusion and the support portion forming an engagement groove for the pressure block to be fitted into place.
[0021] In some embodiments, the maximum distance H1 between the top surface of the limiting member and the bearing surface is not greater than the thickness H2 of the laminate, the minimum distance H3 between the limiting member and the bearing surface is not less than the thickness H4 of the back panel on the laminate, the bearing surface is used to support part of the back panel of the laminate, the abutment is used to abut the end face of the back panel of the laminate, the end face of the limiting member is used to abut the end face of the front panel of the laminate, and the surface of the limiting member facing the bearing surface is used to press against part of the back panel of the laminate.
[0022] An embodiment of this application also provides a photovoltaic module.
[0023] A photovoltaic module includes a laminate and a mounting frame as described in any of the above embodiments. The laminate includes a back panel, a back adhesive film, a cell, a front adhesive film, and a front panel stacked sequentially. The laminate is encapsulated by the mounting frame, and during encapsulation, the edge of the laminate is installed in the mounting groove of the mounting frame.
[0024] In some embodiments, the edges of the back panel protrude beyond the edges of the front panel, the laminate is encapsulated by the mounting frame, a portion of the back panel of the laminate is located on the bearing surface, the end face of the back panel of the laminate can abut against the abutment, the end face of the front panel of the laminate abuts against the end face of the limiting member, and a portion of the back panel of the laminate abuts against the surface of the limiting member facing the bearing surface.
[0025] The aforementioned mounting frame can significantly reduce material costs, achieving cost reduction and efficiency improvement. Specifically, in this application, the frame body is provided with a load-bearing part, a support part, and a mounting part. The edge of the laminate is installed in the mounting groove formed by the limiting part, the abutment part, and the load-bearing surface. The support part is located between and connects the load-bearing part and the mounting part. Compared with the conventional technology, this application eliminates the cavity structure. This application directly uses the support part to connect the load-bearing part and the mounting part, reducing one side of the conventional frame. By moving the support part inward by a certain distance, that is, the first end and the second end of the load-bearing part protrude from the support part along its width direction, the load-bearing part can be increased. In addition, since the cavity is eliminated, this application does not require a corner bracket structure, and can reduce the length of the mounting part and the height of the support part, significantly reducing material costs and achieving cost reduction and efficiency improvement. Furthermore, this application eliminates the cavity, thus enabling a foldable connection between adjacent mounting frames. The end faces of adjacent mounting frames are connected by a movable connection, such as a hinge. After the mounting frames are folded as a whole, a special connector buckle can be used to achieve a closed-loop connection.
[0026] Furthermore, the aforementioned mounting frame is configured as follows: the maximum distance H1 between the top surface of the limiting member and the bearing surface is not greater than the thickness H2 of the laminate; the width W1 of the limiting member is less than the width W2 of the bearing surface; and the minimum distance H3 between the limiting member and the bearing surface is not less than the thickness H4 of the back panel on the laminate. In this case, the mounting frame can be adapted to laminates with a front panel width smaller than the back panel width. The abutting member abuts against the end face of the back panel of the laminate, the end face of the limiting member abuts against the end face of the front panel of the laminate, and the surface of the limiting member facing the bearing surface presses against part of the back panel of the laminate. This configuration ensures that the front panel of the laminate is not higher than the limiting member after encapsulation. When the photovoltaic module is in use, the junction between the front panel and the limiting member is not prone to dust or rain accumulation. Even if a small amount of dust accumulates, it can be quickly and thoroughly cleaned off the front panel by rainwater and will not remain on the front panel. This achieves the purpose of reducing dust accumulation and hot spots, while increasing the power generation of the photovoltaic module, reducing the frequency of module cleaning to a certain extent, and ensuring returns. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.
[0029] Figure 1 This is a cross-sectional schematic diagram of the mounting frame according to an embodiment of the present utility model;
[0030] Figure 2 This is a cross-sectional view of the mounting frame according to another embodiment of the present invention;
[0031] Figure 3 for Figure 2 Schematic diagram of the middle section;
[0032] Figure 4 for Figure 2 Schematic diagram of the middle section;
[0033] Figure 5 This is a cross-sectional schematic diagram of the laminate structure according to an embodiment of the present invention;
[0034] Figure 6 This is a cross-sectional view of the mounting frame and laminated component after encapsulation according to an embodiment of the present invention.
[0035] Explanation of reference numerals in the attached figures
[0036] 10. Photovoltaic module; 100. Mounting frame; 110. Frame body; 111. Bearing part; 112. Support part; 113. Mounting part; 114. Reinforcing part; 115. Mounting protrusion; 101. Bearing surface; 102. Glue overflow groove; 103. Rotating groove; 104. Rotating protrusion; 105. Clearance groove; 106. Blocking element; 107. Embedding groove; 120. Abutting element; 121. Abutting protrusion; 122. Extrusion protrusion; 130. Limiting element; 131. Limiting base; 140. Mounting groove; 150. Limiting protrusion; 151. Connecting part; 152. Bending part; 153. Auxiliary receiving area; 200. Laminated component; 201. Back panel; 202. Back adhesive film; 203. Battery; 204. Front adhesive film; 205. Front panel. Detailed Implementation
[0037] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0040] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0041] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0043] In this document, "optionally," "optionally," and "optional" mean that something is optional, that is, it is selected from either "with" or "without." If multiple "options" appear in a technical solution, unless otherwise specified and there are no contradictions or mutual constraints, each "option" is independent. In this application, descriptions such as "optionally contains" and "optionally includes" indicate "contains or does not contain."
[0044] In this application, "light-receiving surface or front side" and "backlighting surface or back side" are used only to distinguish the positions of the two opposing surfaces of the battery substrate. In actual operating conditions, the "light-receiving surface" is the surface of the battery substrate that primarily receives light, but the "backlighting surface" does not necessarily not receive light. In fact, due to the presence of diffuse reflection, the "backlighting surface" can also receive light in actual operating conditions.
[0045] In this application, when numerical intervals (i.e., numerical ranges) are mentioned, unless otherwise specified, the distribution of selectable numerical values within the numerical interval is considered continuous, and includes the two endpoints of the numerical interval (i.e., the minimum and maximum values), as well as every numerical value between these two endpoints. Unless otherwise specified, when a numerical interval refers only to integers within that numerical interval, it includes the two endpoint integers of the numerical range, as well as every integer between the two endpoints, which is equivalent to directly listing every integer. When multiple numerical ranges are provided to describe features or characteristics, these numerical ranges can be merged. In other words, unless otherwise specified, the numerical ranges disclosed in this application should be understood to include any and all subranges included therein. The "numerical value" in the numerical interval can be any quantitative value, such as a number, percentage, ratio, etc. The term "numerical interval" can be broadly included to include percentage intervals, ratio intervals, proportion intervals, etc.
[0046] This application provides an installation frame to solve at least one of the following technical problems existing in photovoltaic modules in the prior art: (1) after photovoltaic modules are used outdoors for a long time, dust and rain will accumulate, which will affect the normal power generation of photovoltaic modules; (2) the aluminum frame in the traditional technology is composed of two long frames, two short frames and corner brackets. The frame consumes a lot of materials and the material cost is high, which is not conducive to cost reduction and efficiency improvement. The installation frame will be described below with reference to the accompanying drawings.
[0047] The mounting frame provided in this application embodiment is exemplary; please refer to [link / reference]. Figure 1 As shown, Figure 1 This is a cross-sectional schematic diagram of the mounting frame provided in an embodiment of this application. The mounting frame of this application can be used for laminate encapsulation to form a photovoltaic module.
[0048] To more clearly illustrate the structure of the mounting frame, the following description of the mounting frame will be provided in conjunction with the accompanying drawings.
[0049] For example, please refer to Figure 1 As shown, an installation frame 100 includes a frame body 110, an abutment 120, and a limiting member 130.
[0050] The frame body 110 includes a carrier portion 111, a support portion 112, and a mounting portion 113. The carrier portion 111 and the mounting portion 113 are spaced apart. The support portion 112 is disposed between and connects the carrier portion 111 and the mounting portion 113. A carrier surface 101 is formed on the surface of the carrier portion 111 away from the support portion 112. A first end and a second end of the carrier portion 111 protrude from the support portion 112 along its width direction. An abutment 120 is located near the first end and connected to the carrier surface 101. A limiting member 130 is connected to the end of the abutment 120 away from the carrier portion 111. The limiting member 130, the abutment 120, and the carrier surface 101 form a mounting groove 140 for mounting the edge of the laminate 200. The opening of the mounting groove 140 faces the second end. When encapsulating the laminate 200, a certain amount of adhesive is applied to the mounting groove 140.
[0051] It should be noted that the width direction of the aforementioned support portion 111 refers to the direction from the edge position of the laminate 200 to its central position after the mounting frame 100 and the laminate 200 are engaged.
[0052] The aforementioned mounting frame 100 can significantly reduce material costs, achieving the goal of cost reduction and efficiency improvement. Specifically, in this application, the frame body 110 is provided with a bearing portion 111, a support portion 112, and a mounting portion 113. The edge of the laminate 200 is installed in the mounting groove 140 formed by the limiting member 130, the abutment member 120, and the bearing surface 101. The support portion 112 is disposed between and connects the bearing portion 111 and the mounting portion 113. Compared with the conventional technology, this application eliminates the cavity structure. This application directly uses a support between the bearing portion 111 and the mounting portion 113. The support portion 112 is connected, reducing one side of the traditional frame. By shifting the support portion 112 inward by a certain distance, that is, the first and second ends of the bearing portion 111 protrude from the support portion 112 along its width direction, the load-bearing capacity of the bearing portion 111 can be increased. In addition, since the cavity is eliminated, this application does not require corner brackets to connect the mounting frame 100, and at least the length of the mounting portion 113 and the height of the support portion 112 can be reduced, significantly reducing material costs and achieving cost reduction and efficiency improvement. In this application, multiple mounting frames 100 are used when encapsulating the laminate 200. Adjacent mounting frames 100 can be connected by hinges. When the mounting frames 100 are connected by hinges, adjacent mounting frames 100 can be folded together, and the last two mounting frames 100 are connected by snap-fit to form a closed loop.
[0053] In some embodiments, the frame body 110, the abutment 120, and the limiting member 130 are connected as an integral structure.
[0054] In some embodiments, the support portion 112 is generally a plate-like structure and has no cavity structure.
[0055] In some embodiments, the length L1 of the first end protruding from the support 112 is less than the length L2 of the second end protruding from the support 112. See also Figure 1 As shown in the angle, the first end is located on the left side of the support portion 111, and the second end is located on the right side of the support portion 111.
[0056] In some embodiments, the ratio between the length L1 of the first end protruding from the support portion 112 and the length L2 of the second end protruding from the support portion 112 is 1:2 to 1:4. The value of the ratio between the length L1 of the first end protruding from the support portion 112 and the length L2 of the second end protruding from the support portion 112 includes, but is not limited to, 1:2, 1:3, 1:4 or any two of the foregoing.
[0057] In some of these embodiments, see Figure 1 , Figure 2As shown, Figure 2 This is a cross-sectional view of the mounting frame 100 according to another embodiment of the present invention. The connection between the support part 112 and the bearing part 111 is a rounded transition. Preferably, the radius R1 of the rounded transition at the connection between the support part 112 and the bearing part 111 is ≥1.5.
[0058] In some of these embodiments, see Figure 1 , Figure 2 As shown, the connection between the support portion 112 and the mounting portion 113 is a rounded transition. Preferably, the radius R2 of the rounded transition at the connection between the support portion 112 and the mounting portion 113 is ≥ 1.5.
[0059] In some of these embodiments, see Figure 2 As shown, the frame body 110 also includes a reinforcing part 114. One end of the reinforcing part 114 is connected to the supporting part 111. The other end of the supporting part 112 is connected to the mounting part 113 or the supporting part 112.
[0060] In some embodiments, one end of the reinforcing part 114 is detachably connected to the supporting part 111. The other end of the reinforcing part 114 is detachably connected to the mounting part 113 or the support part 112.
[0061] Preferably, the other end of the reinforcing part 114 is detachably connected to the mounting part 113.
[0062] In some of these embodiments, see Figure 3 As shown, Figure 3 for Figure 2 The schematic diagram of the middle part shows that one end of the reinforcing part 114 and one of the supporting parts 111 are provided with a rotating groove 103, and the other is provided with a rotating protrusion 104. The reinforcing part 114 and the supporting part 111 are detachably connected by the interlocking of the rotating groove 103 and the rotating protrusion 104.
[0063] In some of these embodiments, see Figure 4 As shown, Figure 4 for Figure 2 The schematic diagram shows the middle part of the structure. The mounting part 113 is provided with a clearance groove 105 and a blocking member 106 movably connected to the mounting part 113. In the reset state, one end of the blocking member 106 is connected to the edge of the clearance groove 105, and the other end extends towards the support part 112. The blocking member 106 can at least partially retract into the clearance groove 105 under external pressure, and the other end of the reinforcing part 114 can abut against the blocking member 106 in the reset state. Preferably, the blocking member 106 has a certain elasticity, allowing it to retract into the clearance groove 105 after being pressed by external force and to reset after the external force dissipates, thereby limiting the movement of the reinforcing part 114.
[0064] In this application, when the mounting frame 100 is provided with a reinforcing part 114, when encapsulating the laminate 200, after multiple mounting frames 100 encapsulate the laminate 200, a snap-fit is used to connect the edges of the mounting frames 100 at the interface position, and finally the reinforcing part 114 is installed on each mounting frame 100.
[0065] In some embodiments, the mounting portion 113 protrudes from the support portion 112 at its third and fourth ends along its width direction, so that the frame body 110 has an overall I-shaped structure. It should be noted that the width direction of the mounting portion 113 mentioned above refers to the direction from the edge position of the laminate 200 to its central position after the mounting frame 100 and the laminate 200 are engaged.
[0066] In some embodiments, the length L3 of the third end protruding from the support 112 is less than the length L4 of the fourth end protruding from the support 112. See also Figure 1 As shown in the angle, the third end is located on the left side of the mounting part 113, and the fourth end is located on the right side of the mounting part 113.
[0067] In some embodiments, the ratio between the length L3 of the third end protruding from the support portion 112 and the length L4 of the fourth end protruding from the support portion 112 is 1:3 to 1:5. The value of the ratio between the length L3 of the third end protruding from the support portion 112 and the length L4 of the fourth end protruding from the support portion 112 includes, but is not limited to, 1:3, 1:4, 1:5 or any two of the foregoing.
[0068] In some of these embodiments, please refer again. Figure 1 or Figure 2 As shown, the length L4 of the fourth end protruding from the support portion 112 is greater than the length L2 of the second end protruding from the support portion 112. This arrangement improves the stability of the mounting frame 100.
[0069] In some embodiments, the length L3 of the third end protruding from the support 112 is equal to the length L1 of the first end protruding from the support 112. That is, the outer wall of the third end is flush with the outer wall of the first end in the vertical direction.
[0070] In some embodiments, the frame body 110 further includes a mounting protrusion 115 for engaging the pressure block. The mounting protrusion 115 is connected to the third end, protruding from the surface of the mounting portion 113 toward the support portion 111 and extending toward the support portion 111. The gap between the mounting protrusion 115 and the support portion 112 forms an engagement groove 107 for engaging the pressure block. A portion of the pressure block is engaged in the engagement groove 107 to fix the frame body 110, while the other portion of the pressure block is used to fix it to the ground or support surface of the scene.
[0071] In some embodiments, by Figure 1 and Figure 2 As can be seen from the comparison, when the reinforcing part 114 is provided, the length of the mounting part 113 can be effectively shortened. Specifically, the length of the fourth end of the mounting part 113 can be shortened to reduce the use of materials and reduce costs.
[0072] In some embodiments, the supporting portion 111, the supporting portion 112, and the mounting portion 113 can all be plate-shaped structures. Preferably, the supporting portion 112 is arranged perpendicularly to the supporting portion 111 and the mounting portion 113.
[0073] This application eliminates the cavity, thus enabling the foldable connection of multiple mounting frames 100. Several mounting frames 100 are connected via a movable connection. After being folded as a single unit, the mounting frames 100 can be closed using a dedicated connector snap-fit. Adjacent mounting frames 100 can be connected via hinges or similar means for a rotating folding connection.
[0074] In some embodiments, the maximum distance H1 between the top surface of the limiting member 130 and the bearing surface 101 is not greater than the thickness H2 of the laminate 200. The minimum distance H3 between the limiting member 130 and the bearing surface 101 is not less than the thickness H4 of the back panel 201 on the laminate 200. The bearing surface 101 is used to support a portion of the back panel 201 of the laminate 200. The abutment member 120 is used to abut against the end face of the back panel 201 of the laminate 200. The end face of the limiting member 130 is used to abut against the end face of the front panel 205 of the laminate 200. The surface of the limiting member 130 facing the bearing surface 101 is used to press against a portion of the back panel 201 of the laminate 200.
[0075] The mounting frame 100 is configured as follows: the maximum distance H1 between the top surface of the limiting member 130 and the bearing surface 101 is not greater than the thickness H2 of the laminate 200; the width W1 of the limiting member 130 is less than the width W2 of the bearing surface 101; and the minimum distance H3 between the limiting member 130 and the bearing surface 101 is not less than the thickness H4 of the back panel 201 on the laminate 200. In this configuration, the mounting frame 100 can fit a laminate 200 whose front panel 205 is narrower than the back panel 201. The abutment 120 abuts against the end face of the back panel 201 of the laminate 200, and the end face of the limiting member 130 abuts against the front panel 201 of the laminate 200. The end face of the 05, the surface of the limiting member 130 facing the bearing surface 101, presses against part of the back panel 201 of the laminate 200. This arrangement ensures that the front panel 205 of the laminate 200 is not higher than the limiting member 130 after encapsulation. When the photovoltaic module 10 is in use, the junction between the front panel 205 and the limiting member 130 is not prone to dust or rain accumulation. Even if there is a small amount of dust accumulation, it can be quickly and thoroughly cleaned off the front panel 205 by rainwater and will not remain on the front panel 205. While achieving the purpose of reducing dust accumulation and hot spots, it can also increase the power generation of the photovoltaic module 10, reduce the frequency of module cleaning to a certain extent, and ensure income.
[0076] In some of these embodiments, see Figure 1 As shown, the limiting member 130 is parallel to the bearing surface 101. Preferably, the outer surface of the limiting member 130 is a smooth surface or a sloping surface. When the outer surface of the limiting member 130 is a sloping surface, the height of the outer surface of the limiting member 130 from the bearing surface 101 gradually decreases from the side away from the abutment member 120 to the side close to the abutment member 120, forming a sloping surface. This allows a small amount of dust accumulated on the front panel 205 to be washed away by rainwater, achieving the purpose of preventing dust accumulation.
[0077] In some of these embodiments, see Figure 1 As shown, the maximum distance H1 between the top surface of the limiting member 130 and the bearing surface 101 is less than the thickness H2 of the laminate 200, and the distance between the end of the top surface of the limiting member 130 away from the abutment member 120 and the bearing surface 101 is greater than the distance between the end of the top surface of the limiting member 130 closer to the abutment member 120 and the bearing surface 101. It should be noted that, see [reference] Figure 1 As shown, the maximum distance H1 between the top surface of the limiting member 130 and the bearing surface 101 refers to the maximum distance between the top surface (i.e., the outward-facing surface) of the limiting member 130 and the bearing surface 101.
[0078] In some embodiments, the maximum distance H1 between the top surface of the limiting member 130 and the bearing surface 101 is 0-3 mm smaller than the thickness H2 of the laminate 200. This arrangement allows a small amount of dust accumulated on the front panel 205 to be washed away by rainwater, thus preventing dust accumulation.
[0079] In some of these embodiments, see Figure 6 As shown, Figure 6 This is a cross-sectional view of the mounting frame 100 and the laminate 200 after encapsulation according to an embodiment of the present invention. The limiting member 130 includes a limiting base 131 connected to the abutment member 120 and a limiting protrusion 150 connected to the limiting base 131. The minimum distance H5 between the limiting protrusion 150 and the bearing surface 101 is not less than the thickness H4 of the back panel 201 on the laminate 200. In this case, the minimum distance H3 between the limiting member 130 and the bearing surface 101 can be greater than the minimum distance H5 between the limiting protrusion 150 and the bearing surface 101. When the limiting member 130 is provided with the limiting protrusion 150, the limiting protrusion 150 is used to press against a portion of the back panel 201 of the laminate 200. When the limiting member 130 is provided with the limiting base 131, the limiting base 131 is parallel to the bearing surface 101.
[0080] In some embodiments, the minimum distance H5 between the limiting protrusion 150 and the bearing surface 101 is 0.6mm to 1.5mm larger than the thickness H4 of the back panel 201 on the laminate 200. This arrangement allows the back panel 201 of the laminate 200 to have a certain margin when moving in the area between the limiting protrusion 150 and the bearing surface 101, ensuring that the back panel 201 can move to a certain extent during encapsulation.
[0081] In some embodiments, the width W1 of the limiting member 130 is 2mm to 7mm. The value of the width W1 of the limiting member 130 includes, but is not limited to: 2mm, 3mm, 4mm, 5mm, 6mm, 7mm or any range between the two mentioned above.
[0082] In some embodiments, the width W1 of the limiting member 130 is equal to the distance W3 between the edge of the back panel 201 and the edge of the front panel 205 on the laminate 200. See also Figure 2 As shown, the edge of the back panel 201 on the laminate 200 protrudes beyond the edge of the front panel 205, and the distance by which the edge of the back panel 201 protrudes beyond the edge of the front panel 205 is W3. This configuration ensures that, after encapsulation, the edge of the laminate 200 is completely engaged within the mounting groove 140 of the frame, achieving a state where the abutment 120 abuts against the end face of the back panel 201 of the laminate 200, and the limiting member 130 abuts against the end face of the front panel 205 of the laminate 200. This minimizes the risk of the front panel 205 shattering during encapsulation.
[0083] In some embodiments, the limiting protrusion 150 is located at the end of the limiting base 131 away from the abutment 120. The limiting protrusion 150, located at the end away from the abutment 120, serves two purposes: firstly, it presses against the protruding portion of the back panel 201; secondly, it abuts against the end face of the front panel 205, improving the sealing fit and reducing the gap between the mounting frame 100 and the laminate 200, thereby reducing dust accumulation. It should be noted that when the limiting member 130 includes the limiting protrusion 150, the width W1 of the limiting member 130 refers to the width of the limiting base 131. The width W1 of the limiting base 131 is its dimension along the width direction of the mounting frame.
[0084] In some embodiments, the width W1 of the limiting member 130 is smaller than the width W2 of the bearing surface 101. By setting the width of the limiting member 130 to be smaller than the width of the bearing surface 101, the laminations 200 with different widths for the front panel 205 and the back panel 201 are encapsulated.
[0085] In some embodiments, the limiting protrusion 150 includes a connecting portion 151 and a bent portion 152. The connecting portion 151 and the bent portion 152 are generally bent structures. For example, see... Figure 1 As shown, the bent structure is approximately "J" shaped. Connecting portion 151 is connected to limiting base 131. Bending portion 152 is connected to connecting portion 151 and extends towards the bottom surface of mounting groove 140. An auxiliary receiving area 153 for accommodating overflowing adhesive is formed between bending portion 152, connecting portion 151, and limiting base 131. Connecting portion 151 and part of limiting base 131 together abut against the end face of front panel 205 of laminate 200, and bending portion 152 abuts against part of front panel 205 of laminate 200. Bending portion 152 can limit front panel 205, and the outer side of bending portion 152 away from abutting member 120 can be used to abut against the end face of front panel 205, thus minimizing the risk of front panel 205 shattering during encapsulation.
[0086] In some embodiments, the length of the bent portion 152 extending toward the bottom surface of the mounting groove 140 is no greater than the distance W3 between the edge of the back panel 201 and the edge of the front panel 205 on the laminate 200. Preferably, the length of the bent portion 152 extending toward the bottom surface of the mounting groove 140 is equal to the distance W3 between the edge of the back panel 201 and the edge of the front panel 205 on the laminate 200.
[0087] In some embodiments, the extending direction of the bent portion 152 and the limiting base 131 are both parallel to the bearing surface 101. See also Figure 1As shown, the surface of the bent portion 152 close to the bearing surface 101 is preferably designed as a flat surface, so that the bent portion 152 and the back panel 201 can have a larger contact area, which can play a role in distributing the force during mechanical load testing.
[0088] In some embodiments, the outer surface of the connection position between the connecting portion 151 and the bending portion 152 has a curved chamfered structure. The design of the outer surface of the connection position between the connecting portion 151 and the bending portion 152 with a curved chamfered structure makes it easier for the back panel 201 to be inserted into the mounting groove 140, thus improving installation convenience.
[0089] In some embodiments, the connecting portion 151 and the limiting base portion 131 have an included angle of 80° to 110°.
[0090] Preferably, the connecting portion 151 is perpendicular to the limiting base 131. The perpendicularity between the connecting portion 151 and the limiting base 131 can increase the contact area between the connecting portion 151 and the end face of the front panel 205, reduce the gap between them, and reduce dust accumulation.
[0091] In some embodiments, the surface of the abutment 120 located within the mounting groove 140 has an abutment protrusion 121. The abutment protrusion 121 is close to the bearing surface 101 and is used to abut against at least a portion of the end face of the back panel 201 of the fixed laminate 200.
[0092] In some embodiments, the surface of the abutment 120 located within the mounting groove 140 has a pressing protrusion 122. The pressing protrusion 122 is close to the retainer 130 and is used to assist adhesive overflow to the front panel 205 of the laminate 200.
[0093] In some embodiments, the bearing surface 101 has a plurality of adhesive overflow grooves 102. The adhesive overflow grooves 102 can hold a portion of the adhesive, thereby improving its adhesive strength and enhancing the connection between the back panel 201 and the bearing surface 101.
[0094] In some embodiments, the surface of the bearing surface 101 is generally planar, which can increase the contact area between the back panel 201 and the bearing surface 101 and improve the connection between the back panel 201 and the bearing surface 101.
[0095] In some embodiments, the inner wall of the overflow groove 102 gradually narrows from the bottom surface of the groove to the opening. This design enables the bonded parts after the adhesive has cured to form a structure that is larger inside and smaller outside, making it difficult for the bonded parts to detach from the overflow groove 102 and improving the connection between the back panel 201 and the bearing surface 101.
[0096] In some embodiments, the shape of the overflow groove 102 can be a regular shape or an irregular shape, such as a square groove, a circular groove, etc., and no specific limitation is made here.
[0097] In some embodiments, the number of slots in the overflow groove 102 is determined according to the width W2 of the bearing surface 101.
[0098] In some embodiments, the frame body 110 is a metal frame made of metal or alloy material, or a composite material frame made of composite material.
[0099] Preferably, the frame body 110 is a composite material frame made of composite materials. The materials of the composite material frame include polyurethane, glass fiber, etc., which have insulating properties. Therefore, the creepage distance of the photovoltaic module 10 using the composite material frame can theoretically be zero. To ensure that the battery 203 is not obstructed and considering the sealing of the encapsulant film, the size of the front panel 205 of the photovoltaic module 10 using the composite material frame in this application can be reduced. Compared with photovoltaic modules 10 of conventional technology, this application can effectively reduce the overall structural size. Here, creepage distance refers to the safe distance between the frame and charged components such as the battery 203.
[0100] An embodiment of this application also provides a photovoltaic module 10.
[0101] A photovoltaic module 10 includes a laminate 200 and a mounting frame 100 as described in any of the above embodiments. See also Figure 5 As shown, Figure 5 This is a cross-sectional schematic diagram of a laminate 200 structure according to an embodiment of the present invention. The laminate 200 includes a back panel 201, a back adhesive film 202, a battery 203, a front adhesive film 204, and a front panel 205 stacked sequentially. The laminate 200 is encapsulated by a mounting frame 100. The battery 203 may include a plurality of battery cells or a battery string formed by connecting a plurality of battery cells.
[0102] In some of these embodiments, see Figure 6 As shown, the edges of the back panel 201 all protrude beyond the edges of the front panel 205, and the distance W3 between the edges of the back panel 201 and the front panel 205 on the laminate 200 is 1. The laminate 200 is encapsulated by the mounting frame 100. Part of the back panel 201 of the laminate 200 is located on the bearing surface 101. The end face of the back panel 201 of the laminate 200 can abut against the abutment 120. The end face of the front panel 205 of the laminate 200 abuts against the end face of the limiting member 130. Part of the back panel 201 of the laminate 200 abuts against the surface of the limiting member 130 facing the bearing surface 101.
[0103] In some embodiments, when the limiting member 130 includes a limiting protrusion 150, the limiting protrusion 150 engages with the back panel 201, specifically, the bent portion 152 engages with the back panel 201. The connecting portion 151 and part of the limiting member 130 together abut against the end face of the front panel 205 of the laminate 200, and the bent portion 152 abuts against part of the back panel 201 of the laminate 200. The bent portion 152 can limit the back panel 201, and the outer side of the bent portion 152 away from the abutment member 120 can be used to abut against the end face of the front panel 205, thus minimizing the risk of the front panel 205 shattering during encapsulation.
[0104] In some embodiments, the number of mounting frames 100 can be multiple. When there are multiple mounting frames 100, the end faces of adjacent mounting frames 100 can be joined together with a 45° bevel to achieve a 90° angle splicing between adjacent mounting frames 100. During processing, the end faces of the mounting frames 100 can be cut to make the end faces of the mounting frames 100 have a 45° bevel.
[0105] In some embodiments, the lengths of the mounting borders 100 may be equal or unequal. For example, the mounting borders 100 may include a long border and a short border to fit the long and short sides of the laminate 200, respectively.
[0106] In some embodiments, the length of the mounting frame 100 can be set according to the length or width of the laminate 200, and no specific limitation is made here.
[0107] In some embodiments, the adhesive used in the mounting groove 140 during encapsulation can be the glue used in the photovoltaic field, without specific limitations.
[0108] In some embodiments, the front panel 205 and the back panel 201 described above can be independently selected from photovoltaic glass panels.
[0109] In summary, compared with traditional technologies, the mounting frame 100 of this application has the following beneficial effects:
[0110] (1) Cost reduction: This application eliminates the cavity structure, eliminates the need for corner brackets, and reduces the material of the frame body 110 by one side wall. The dimensions of other side walls, such as the support part 112 and the mounting part 113, can be reduced. While ensuring load-bearing capacity through structural optimization, the material of non-critical parts is effectively reduced, thereby achieving cost reduction of frame material.
[0111] (2) Airborne reliability: By using the limiting member 130 or the limiting protrusion 150 to restrain the back panel 201 of the laminate 200, the airborne load strength can be guaranteed to the maximum extent.
[0112] (3) Dust prevention: Based on the safety and reliability of the airborne load, the maximum height of the bearing surface 101 of the limiting component 130 is not higher than that of the front panel 205. Therefore, a small amount of dust on the front panel 205 can be more easily washed away by rainwater, thus achieving the purpose of dust prevention.
[0113] (4) Aesthetically pleasing appearance: The composite material frame of this application is preferably made of composite material, which can be made of a variety of colors such as black and dark blue, forming the same color effect as the battery 203, and has a better visual effect. Since this application reduces the size of the limiting member 130 and the abutment member 120, even if a metal frame made of metal or alloy material is used, such as an aluminum frame, visual comfort can be improved.
[0114] (5) The mounting frame 100 has a variety of assembly forms: This application eliminates the cavity of the frame, so the long and short frames can be connected by an integrated folding method, and the first and last mounting frames 100 are connected by a buckle to achieve a closed loop connection.
[0115] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0116] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0117] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A mounting frame (100), characterized in that, The frame includes a frame body (110), an abutment (120), and a limiting member (130). The frame body (110) includes a supporting part (111), a supporting part (112), and a mounting part (113). The supporting part (111) and the mounting part (113) are spaced apart. The supporting part (112) is disposed between the supporting part (111) and the mounting part (113) and connects the supporting part (111) and the mounting part (113). The surface of the supporting part (111) away from the supporting part (112) forms a bearing surface. (101) The first end and the second end of the bearing part (111) protrude from the support part (112) along its width direction, respectively. The abutment (120) is connected to the first end, and the limiting member (130) is connected to the end of the abutment (120) away from the bearing part (111). The limiting member (130), the abutment (120) and the bearing surface (101) form a mounting groove (140) for mounting the laminate (200). The opening of the mounting groove (140) faces the second end.
2. The mounting frame (100) according to claim 1, characterized in that, The length L1 of the first end protruding from the support (112) is less than the length L2 of the second end protruding from the support (112).
3. The mounting frame (100) according to claim 2, characterized in that, The ratio between the length L1 of the first end protruding from the support (112) and the length L2 of the second end protruding from the support (112) is 1:2 to 1:
4.
4. The mounting frame (100) according to any one of claims 1 to 3, characterized in that, The mounting frame (100) also satisfies at least one of the following conditions: (1) The connection between the support part (112) and the bearing part (111) is a rounded transition; the radius of the rounded corner R1 of the connection between the support part (112) and the bearing part (111) is ≥1.5; (2) The connection between the support part (112) and the mounting part (113) is a rounded transition, and the radius of the rounded corner R2 of the connection between the support part (112) and the mounting part (113) is ≥1.5; (3) The frame body (110), the abutment (120) and the limiting member (130) are connected in an integrated structure.
5. The mounting frame (100) according to any one of claims 1 to 3, characterized in that, The frame body (110) also includes a reinforcing part (114), one end of which is connected to the bearing part (111), and the other end of the supporting part (112) is connected to the mounting part (113) or the supporting part (112).
6. The mounting frame (100) according to claim 5, characterized in that, The mounting frame (100) also satisfies at least one of the following conditions: (1) One end of the reinforcing part (114) is detachably connected to the bearing part (111), and the other end of the supporting part (112) is detachably connected to the mounting part (113) or the supporting part (112). (2) One end of the reinforcing part (114) and the supporting part (111) are provided with a rotating groove (103) and a rotating protrusion (104). The reinforcing part (114) and the supporting part (111) are detachably connected by the interlocking of the rotating groove (103) and the rotating protrusion (104). (3) The mounting part (113) is provided with a relief groove (105) and a blocking member (106) movably connected to the mounting part (113). When the blocking member (106) is in the reset state, one end is connected to the edge of the relief groove (105) and the other end extends toward the support part (112). The blocking member (106) can be at least partially retracted into the relief groove (105) under the action of external force. The other end of the reinforcing part (114) can abut against the blocking member (106) in the reset state.
7. The mounting frame (100) according to any one of claims 1 to 3 and 6, characterized in that, The mounting portion (113) protrudes from the support portion (112) at its third and fourth ends along its width direction, so that the frame body (110) as a whole has an I-shaped structure.
8. The mounting frame (100) according to claim 7, characterized in that, The mounting frame (100) also satisfies at least one of the following conditions: (1) The length L3 of the third end protruding from the support (112) is less than the length L4 of the fourth end protruding from the support (112); (2) The ratio between the length L3 of the third end protruding from the support (112) and the length L4 of the fourth end protruding from the support (112) is 1:3 to 1:5; (3) The length L4 of the fourth end protruding from the support (112) is greater than the length L2 of the second end protruding from the support (112); (4) The length L3 of the third end protruding from the support (112) is equal to the length L1 of the first end protruding from the support (112); (5) The frame body (110) also includes a mounting protrusion (115) for cooperating with the pressure block. The mounting protrusion (115) protrudes from the surface of the mounting part (113) toward the support part (111) and extends toward the support part (111). The gap between the mounting protrusion (115) and the support part (112) forms an embedding groove (107) for the pressure block to be embedded and cooperated with.
9. The mounting frame (100) according to any one of claims 1 to 3, 6, and 8, characterized in that, The maximum distance H1 between the top surface of the limiting member (130) and the bearing surface (101) is not greater than the thickness H2 of the laminate (200), the minimum distance H3 between the limiting member (130) and the bearing surface (101) is not less than the thickness H4 of the back panel (201) on the laminate (200), the bearing surface (101) is used to support part of the back panel (201) of the laminate (200), the abutting member (120) is used to abut against the end face of the back panel (201) of the laminate (200), the end face of the limiting member (130) is used to abut against the end face of the front panel (205) of the laminate (200), and the surface of the limiting member (130) facing the bearing surface (101) is used to press against part of the back panel (201) of the laminate (200).
10. A photovoltaic module (10), characterized in that, The device includes a laminate (200) and a mounting frame (100) as described in any one of claims 1 to 9. The laminate (200) includes a back panel (201), a back adhesive film (202), a battery (203), a front adhesive film (204), and a front panel (205) stacked in sequence. The laminate (200) is encapsulated by the mounting frame (100). During encapsulation, the laminate (200) is installed in the mounting groove (140) of the mounting frame (100).