Laminated frame

Abstract

The utility model relates to a laminated frame, the laminated frame comprises a long edge strip and a short edge strip, the long edge strip and the short edge strip intersect with each other, the long edge strip and the short edge strip jointly enclose to form an accommodating cavity for accommodating a laminated assembly, and the long edge strip and / or the short edge strip comprises an edge strip main body, a movable strip and an elastic piece; the movable strip is rotationally connected to the side, close to the containing cavity, of the edge strip body, and the movable strip can swing in the length direction of the edge strip body. The elastic piece is connected between the edge strip main body and the movable strip, and the elastic piece is used for applying tension towards the direction of the edge strip main body to the movable strip. According to the laminated frame, the problem of subfissure of the battery pieces in the laminated assembly in the process of taking out the laminated frame can be reduced.

Description

Technical Field

[0001] This application relates to the field of photovoltaic module technology, and in particular to laminated frames. Background Technology

[0002] Photovoltaic modules are one of the core components of a solar power generation system. A photovoltaic module consists of a back cover, a cell string, and a front cover stacked sequentially. In actual production, the back cover, cell string, and front cover are first stacked sequentially, and encapsulating films are placed between the front cover and the cell string, as well as between the back cover and the cell string, to form a laminated module. The laminated module is then sent to a lamination machine for high-temperature lamination, where the encapsulating films melt and bond together to fix the back cover, cell string, and front cover in a high-temperature and high-pressure environment.

[0003] To alleviate the pressure on the laminated components during lamination, a lamination frame is typically placed around the outer perimeter of the laminated component during the lamination process. The frame is then removed after lamination. However, during lamination, the hot-melt encapsulating film may overflow from the edges of the laminated component and adhere to the lamination frame. When removing the frame, this adhesion causes the frame to lift the laminated component a short distance, after which it falls back onto the production line under gravity. This can easily lead to defects such as microcracks in the solar cells within the laminated component. Utility Model Content

[0004] Therefore, it is necessary to provide a lamination frame that addresses the issue of microcracks appearing in the solar cells during the removal of the lamination frame.

[0005] A laminating frame includes intersecting long and short strips, the long and short strips together enclosing a cavity for accommodating a laminating assembly, wherein the long and / or short strips comprise:

[0006] Main body of the edge strip;

[0007] A movable strip, rotatably connected to the side of the edge strip body near the cavity, the movable strip being able to swing about the length of the edge strip body; and

[0008] An elastic element is connected between the edge strip body and the movable strip, and the elastic element is used to apply a tensile force to the movable strip in the direction of the edge strip body.

[0009] The technical solution will be further explained below:

[0010] In one embodiment, one of the edge strip body and the movable strip has a protrusion and the other has a groove. The protrusion is disposed in the groove and is rotatably connected to the side wall of the groove via a rotating shaft. The extension direction of the rotating shaft is parallel to the length direction of the edge strip body. One end of the elastic member is connected to the protrusion and the other end of the elastic member is connected to the bottom wall of the groove.

[0011] In one embodiment, the protrusion is provided with a first mounting hole, which extends through both sides of the protrusion along the length of the side strip body. The rotating shaft is rotatably inserted through the first mounting hole, with both ends of the rotating shaft passing through the first mounting hole and respectively connected to two opposite sidewalls of the groove; or,

[0012] Each of the two opposite sides of the protrusion is provided with a first mounting hole, which is a blind hole. A rotating shaft is inserted through each of the first mounting holes, and the two rotating shafts are rotatably connected to the two opposite side walls of the groove.

[0013] In one embodiment, a second mounting hole is provided on the side of the protrusion facing the bottom wall of the groove, and a third mounting hole is provided on the bottom wall of the groove. One end of the elastic member is fixed in the second mounting hole, and the other end is fixed in the third mounting hole.

[0014] In one embodiment, there are multiple grooves, all of which are spaced apart along the length of the side strip body. There are also multiple protrusions, which are arranged one-to-one in the grooves. Each protrusion is rotatably connected to the side wall of the groove via a pivot, and an elastic element is provided between each protrusion and the bottom wall of the groove.

[0015] In one embodiment, the protrusion is a rectangular structure with a length of 5mm-10mm and a protrusion height of 5mm-10mm; and / or, the groove is a rectangular groove with a groove width of 5mm-10mm and a groove depth of 5mm-10mm.

[0016] In one embodiment, the movable strip includes a top surface and a bottom surface disposed opposite to each other, and an inner side surface connected between the top surface and the bottom surface. The inner side surface is disposed opposite to the main body of the edge strip, and along the direction from the top surface to the bottom surface, the inner side surface is inclined towards the direction gradually closer to the main body of the edge strip.

[0017] In one embodiment, the long side strip and / or the short side strip are coated with a high-temperature resistant coating.

[0018] In one embodiment, the long side strip and / or the short side strip are coated with an anti-stick coating.

[0019] In one embodiment, the length of the side strip body is equal to the length of the movable strip, and the width of the side strip body is greater than the width of the movable strip.

[0020] In the aforementioned laminated frame, a rotatable movable strip is provided on the inner side of the main body of the strip, and an elastic element is provided between the movable strip and the main body of the strip. Thus, when excess adhesive occurs during the lamination process of the laminated module, the excess adhesive can directly adhere to the movable strip. As the grippers then lift the edge strip body, the laminated module will lift synchronously. Since the movable strip can swing around the length of the edge strip body, it will rotate downwards under the weight of the laminated module. This effectively reduces the angle β between the peel force F at the adhesive point between the laminated frame and the laminated module and the weight G of the laminated module. Since the peel force F = G / 2*cosβ, reducing the angle β effectively increases the peel force F at the adhesive point between the laminated frame and the laminated module, allowing the laminated module to peel off the laminated frame more quickly. This effectively reduces the height the laminated module rises with the laminated frame, in other words, reducing the drop height of the laminated module and thus reducing the risk of microcracks in the internal cells after a fall. Furthermore, after the laminated module is peeled off the movable strip, the elastic force of the elastic element allows the movable strip to return to its initial position for future use. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0022] 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.

[0023] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are shown as examples only and not necessarily to scale. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the structure of a short or long strip according to an embodiment of this application.

[0025] Figure 2 for Figure 1 The image shows a magnified view of part A.

[0026] Figure 3 This is a schematic diagram showing the interaction between the existing lamination frame and the lamination assembly.

[0027] Figure 4 This is a schematic diagram illustrating the interaction between a laminating frame and a laminating assembly according to an embodiment of this application.

[0028] Figure 5 for Figure 4 The image shows a magnified view of part B.

[0029] Figure 6 This is a cross-sectional view of the movable strip in one embodiment.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Existing laminate frame; 11. Side strip body; 111. Groove; 12. Movable strip; 121. Protrusion; 122. Top surface; 123. Bottom surface; 124. Inner surface; 13. Elastic element; 14. Rotating shaft; 20. Laminate assembly; 30. Gripper. Detailed Implementation

[0032] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application 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 application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0033] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0034] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this application, unless otherwise expressly 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0037] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0038] Specifically, such as Figure 3As shown, during the lamination process of photovoltaic modules, a lamination frame 1 needs to be placed around the outer periphery of the laminated module 20. After lamination is completed, the clamping jaws 30 grasp and lift the pressure frame 1 to remove the lamination frame from the laminated module 20. However, during the lamination process, the hot-melted encapsulating film inside the laminated module 20 may overflow from the edge of the laminated module 20 and adhere to the lamination frame 1. When the clamping jaws 30 lift the pressure frame, because the lamination frame is adhered to the laminated module 20, the lamination frame 1 will lift the laminated module 20 together for a certain distance. Since the adhesive between the lamination frame and the laminated module 20 has not been fully cured at this time, after rising a certain distance, the laminated module 20 will separate from the lamination frame 1 under the action of gravity and fall onto the production line. This can easily cause defects such as microcracks in the cells of the laminated module 20.

[0039] Currently, to prevent the laminated module 20 from falling and causing microcracks in the cells, the usual practice is to manually separate the laminated module 20 from the laminated frame 1 after the excess adhesive from the laminated module 20 adheres to the laminated frame 1 while the machine is stopped. However, this not only increases labor costs but also affects production efficiency.

[0040] Based on this, this application provides a lamination frame for being fitted over the lamination assembly 20 during the lamination process. Specifically, in one embodiment, the lamination frame includes intersecting long and short strips, which together enclose a cavity for accommodating the lamination assembly 20. For example, the lamination frame includes two long strips and two short strips, with the two long strips arranged in parallel and the two short strips connected to the two ends of the two long strips respectively, so that the two long strips and the two short strips together enclose a rectangular frame structure with a cavity, wherein the long strips correspond to the long side of the rectangular frame and the short strips correspond to the short side of the rectangular frame.

[0041] Further, see Figure 1 as well as Figure 2 The long and / or short side strips include a side strip body 11, a movable strip 12, and an elastic element 13. The side strip body 11 is used for gripping by the gripper 30. The movable strip 12 is rotatably connected to the side of the side strip body 11 near the cavity; in other words, the movable strip 12 is rotatably connected to the inner side of the side strip body 11. The movable strip 12 can swing around the length of the side strip body 11. The elastic element 13 is connected between the side strip body 11 and the movable strip 12. The elastic element 13 is used to apply a pulling force to the movable strip 12 in the direction of the side strip body 11 to drive the movable strip 12 to return to its original position.

[0042] Specifically, see Figure 3In the traditional laminate frame 1 scheme, when the excess adhesive of the laminate component 20 adheres to the inner side of the laminate frame 1, during the process of clamping and lifting the laminate frame 1 by the gripper 30, the laminate component 20 will be lifted together, and the laminate component 20 will undergo arc deformation due to its own weight. At this time, force analysis of the adhesive point between the excess adhesive and the laminate frame 1 shows that the peel force F of the adhesive point between the laminate component 20 and the laminate frame 1 is F=G / 2*cosβ, where G is the weight of the laminate component 20, and β is the angle between the tangent direction of the arc of the laminate component 20 at the adhesive point and the direction of gravity. Therefore, it can be seen that when the weight G of the laminate component 20 remains unchanged, reducing the angle β can increase the peel force F of the adhesive point between the laminate component 20 and the laminate frame 1, so that the laminate component 20 can be peeled off from the laminate frame 1 more quickly.

[0043] See Figure 4 as well as Figure 5 In the long and / or short side strips of the laminated frame of this application, a rotatable movable strip 12 is provided on the inner side of the side strip body 11, and an elastic element 13 is provided between the movable strip 12 and the side strip body 11. Thus, when excess adhesive occurs during the lamination process of the laminated assembly 20, the excess adhesive can directly adhere to the movable strip 12. Subsequently, as the gripper 30 grasps the edge strip body 11 and lifts it upwards, the laminated assembly 20 will lift simultaneously. Since the movable strip 12 can swing around the length of the edge strip body 11, it will rotate downwards under the gravity of the laminated assembly 20. This effectively reduces the angle β between the peel force F at the bonding point between the laminated frame and the laminated assembly 20 and the gravity G of the laminated assembly 20. Since the peel force F at the bonding point between the laminated frame and the laminated assembly 20 is G / 2*cosβ, the reduction of the angle β effectively increases the peel force F at the bonding point between the laminated frame and the laminated assembly 20, allowing the laminated assembly 20 to peel off from the laminated frame more quickly. This effectively reduces the height at which the laminated assembly 20 rises with the laminated frame, in other words, it reduces the drop height of the laminated assembly 20, thereby reducing the risk of microcracks in the internal cells after the laminated assembly 20 falls. Furthermore, after the laminated component 20 is peeled off from the movable strip 12, the elastic element 13 can be used to return the movable strip 12 to its initial position for future use.

[0044] It should be noted that, under normal circumstances, the long side of the laminate assembly 20 is sealed with edge-sealing tape, so there is usually no adhesive overflow on the long side of the laminate assembly 20. In this case, only the short side strip of the laminate frame needs to adopt the above design. Understandably, in another embodiment, edge-sealing tape can also be applied to the short side of the laminate assembly 20, in which case the long side strip of the laminate frame adopts the above design. In other embodiments, both the long and short side strips of the laminate frame can adopt the above design.

[0045] See Figure 2For example, in one embodiment, the movable strip 12 is provided with a protrusion 121, and the side strip body 11 is provided with a groove 111. The protrusion 121 is disposed in the groove 111, and the protrusion 121 is rotatably connected to the side wall of the groove 111 through a rotating shaft 14. The extension direction of the rotating shaft 14 is parallel to the length direction of the side strip body 11. In this way, by cooperating with the groove 111, the movable strip 12 can be rotated relative to the side strip body 11 using the rotating shaft 14, while avoiding interference between the movable strip 12 and the side strip body 11, thus ensuring smooth rotation of the movable strip 12.

[0046] Understandably, in another embodiment, the movable strip 12 may have a groove 111, and the side strip body 11 may have a protrusion 121. A pivot 14 connects the protrusion 121 to the side wall of the groove 111, thus enabling the movable strip 12 to rotate relative to the side strip body 11. In other embodiments, the movable strip 12 and the side strip body 11 may be rotatably connected by a hinge or latch, thus eliminating the need for the protrusion and groove 111 and simplifying the manufacturing process.

[0047] Optionally, in one embodiment, the protrusion 121 is provided with a first mounting hole (not shown), which extends through both sides of the protrusion 121 along the length of the strip body 11. A rotating shaft 14 is rotatably inserted through the first mounting hole, with both ends of the shaft passing through and connecting to the two opposite sidewalls of the groove 111, respectively. In other words, the rotating shaft 14 extends through both sides of the protrusion 121, thus saving the number of rotating shafts 14 and reducing costs.

[0048] In another embodiment, a first mounting hole (not shown) may be provided on each of the opposite sides of the protrusion 121. The first mounting hole is a blind hole, and a rotating shaft 14 is inserted through each first mounting hole. The two rotating shafts 14 are rotatably connected to the two opposite sidewalls of the groove 111, respectively. In other words, a rotating shaft 14 is provided on each side of the protrusion 121, thus eliminating the need for a through hole in the protrusion 121 and reducing the manufacturing difficulty.

[0049] See also Figure 2 Optionally, in one embodiment, one end of the elastic member 13 is connected to the protrusion 121, and the other end of the elastic member 13 is connected to the bottom wall of the groove 111. Specifically, a second mounting hole (not shown) is provided on the side of the protrusion 121 facing the bottom wall of the groove 111, and a third mounting hole (not shown) is provided on the bottom wall of the groove 111. One end of the elastic member 13 is fixed in the second mounting hole, and the other end is fixed in the third mounting hole. In this way, a portion of the elastic member 13 can be accommodated in the first mounting hole and the second mounting hole, thereby avoiding the elastic member 13 occupying too much space between the edge strip body 11 and the movable strip 12, and thus preventing the gap between the edge strip body 11 and the movable strip 12 from being too large and affecting the overall width of the laminate frame.

[0050] For example, the elastic element 13 is a spring, and the maximum tensile force of the elastic element 13 is greater than G / 2, where G is the weight of the laminate assembly 20, thereby preventing the elastic element 13 from undergoing plastic deformation under the gravity of the laminate assembly 20.

[0051] See Figure 1 There are multiple grooves 111, all spaced apart along the length of the edge strip body 11. There are also multiple protrusions 121, each corresponding to a groove 111. Each protrusion 121 is rotatably connected to the side wall of the groove 111 via a pivot 14. An elastic element 13 is provided between each protrusion 121 and the bottom wall of the groove 111. This improves the connection stability between the movable strip 12 and the edge strip body 11, preventing the movable strip 12 from detaching from the edge strip body 11.

[0052] Optionally, in one embodiment, the protrusion 121 is a rectangular structure with a length of 5mm-10mm and a protrusion height of 5mm-10mm. Specifically, if the length and width of the protrusion 121 are too large, the overall size of the laminate frame will be too large, affecting its use. Conversely, if the length and width of the protrusion 121 are insufficient, the connection strength between the movable part and the edge strip body 11 will be insufficient. Therefore, configuring the length of the protrusion 121 to 5mm-10mm and the protrusion height to 5mm-10mm can ensure the structural strength of the laminate frame while avoiding its excessive size. Furthermore, the groove 111 is a rectangular groove with a groove width of 5mm-10mm and a groove depth of 5mm-10mm, thereby ensuring that the groove 111 is compatible with the protrusion 121.

[0053] See Figure 6 Optionally, in one embodiment, the movable strip 12 includes a top surface 122 and a bottom surface 123 disposed opposite to each other, and an inner surface 124 connecting the top surface 122 and the bottom surface 123. The inner surface 124 is disposed opposite to the edge strip body 11, and along the direction from the top surface 122 to the bottom surface 123, the inner surface 124 is inclined towards the edge strip body 11. In other words, the cross-section of the movable strip 12 is an inverted trapezoidal structure, so that the excess adhesive of the laminate assembly 20 can adhere to the inner surface 124 of the movable strip 12. When the laminate assembly 20 is lifted together with the laminating frame, the inclined inner surface 124 can further reduce the angle β between the peel force F at the adhesive point between the laminating frame and the laminate assembly 20 and the weight G of the laminate assembly 20, thereby increasing the peel force F at the adhesive point between the laminating frame and the laminate assembly 20, so that the laminate assembly 20 can be peeled off from the laminating frame more quickly.

[0054] Optionally, the long and / or short strips are coated with an anti-stick coating. The anti-stick coating includes, but is not limited to, a PVD coating. The PVD coating is resistant to high temperature, has high hardness, low coefficient of friction, high chemical stability, and high surface smoothness. It can effectively reduce the adhesive force between the movable strip 12 and the laminated assembly 20, and further accelerate the peeling speed of the laminated assembly 20 from the laminated frame.

[0055] Optionally, in one embodiment, the long and / or short strips are coated with a high-temperature resistant coating to ensure that the laminated frame can maintain stable physical properties in a high-temperature and high-pressure lamination environment.

[0056] See Figure 1 In one embodiment, the length of the edge strip body 11 is equal to the length of the movable strip 12, thereby ensuring that when adhesive overflows from the laminated assembly 20, the overflow can only adhere to the movable strip 12. Furthermore, the width of the edge strip body 11 is greater than the width of the movable strip 12, thereby ensuring that the structural strength of the edge strip body 11 is sufficient, and thus ensuring that the edge strip body 11 is not broken when the gripper 30 grasps it.

[0057] For example, the length of the side strip body 11 is 2200mm-2600mm, the width of the side strip body 11 is 20mm-25mm, and the thickness of the side strip body 11 is 5-7mm. The length of the movable strip 12 is 2200mm-2600mm, the width of the movable strip 12 is 10mm-15mm, and the thickness of the movable strip 12 is 5-7mm.

[0058] Furthermore, the main body 11 of the side strip and the movable strip 12 are both made of stainless steel, aluminum alloy or composite materials.

[0059] 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.

[0060] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A laminated frame, characterized by, The long and short side strips are arranged in intersecting manner and jointly enclose a cavity for accommodating a laminated assembly (20), wherein the long and / or short side strips comprise: a side strip body (11); a movable strip (12) rotatably connected to the side strip body (11) near one side of the cavity, the movable strip (12) being able to swing around the length direction of the side strip body (11); and a resilient member (13) connected between the side strip body (11) and the movable strip (12), the resilient member (13) being used to apply a pulling force to the movable strip (12) in the direction of the side strip body (11).

2. The laminate frame of claim 1, wherein, One of the side strip body (11) and the movable strip (12) is provided with a protrusion (121), and the other is provided with a groove (111), the protrusion (121) is arranged in the groove (111), and the protrusion (121) is rotatably connected with the side wall of the groove (111) through a rotating shaft (14), the extending direction of the rotating shaft (14) is parallel to the length direction of the side strip body (11), one end of the resilient member (13) is connected with the protrusion (121), and the other end of the resilient member (13) is connected with the bottom wall of the groove (111).

3. The laminate frame of claim 2, wherein, The protrusion (121) is provided with a first mounting hole penetrating through both sides of the protrusion (121) along the length direction of the side strip body (11), the rotating shaft (14) is rotatably arranged in the first mounting hole, and both ends of the rotating shaft (14) penetrate out of the first mounting hole and are respectively connected with the opposite two side walls of the groove (111); or, Each of the opposite two sides of the protrusion (121) is provided with a first mounting hole, the first mounting hole is a blind hole, and one of the rotating shafts (14) is arranged in each of the first mounting holes, and the two rotating shafts (14) are respectively rotatably connected with the opposite two side walls of the groove (111).

4. The laminate frame of claim 2, wherein, A second mounting hole is formed on the side of the protrusion (121) facing the bottom wall of the groove (111), a third mounting hole is formed on the bottom wall of the groove (111), one end of the resilient member (13) is fixed in the second mounting hole, and the other end of the resilient member (13) is fixed in the third mounting hole.

5. The laminate frame of claim 2, wherein, The number of the grooves (111) is multiple, all the grooves (111) are arranged in interval along the length direction of the side strip body (11), the number of the protrusions (121) is multiple, the protrusions (121) are arranged in the grooves (111) in one-to-one correspondence, each of the protrusions (121) is rotatably connected with the side wall of the groove (111) through a rotating shaft (14), and the resilient member (13) is arranged between each of the protrusions (121) and the bottom wall of the groove (111).

6. The laminate frame of claim 2, wherein, The convex part (121) is a rectangular body structure, the length of the convex part (121) is 5-10 mm, the convex height of the convex part (121) is 5-10 mm; and / or the groove (111) is a rectangular groove, the groove width of the groove (111) is 5-10 mm, the groove depth of the groove (111) is 5-10 mm.

7. The laminate frame of claim 1, wherein, The movable strip (12) comprises a top surface (122) and a bottom surface (123) arranged oppositely, and an inner side surface (124) connected between the top surface (122) and the bottom surface (123), the inner side surface (124) is arranged oppositely to the edge strip body (11), and along the direction from the top surface (122) to the bottom surface (123), the inner side surface (124) is arranged to be inclined to the direction gradually close to the edge strip body (11).

8. The laminate frame of claim 1, wherein, The long edge strip and / or the short edge strip is coated with a high-temperature-resistant coating.

9. The laminate frame of claim 1, wherein, The long edge strip and / or the short edge strip is coated with an anti-sticking coating.

10. The laminated frame of any one of claims 1-9, wherein, The length of the edge strip body (11) is equal to the length of the movable strip (12), and the width of the edge strip body (11) is greater than the width of the movable strip (12).

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