CN117013942B

CN117013942B - Assembly frame and photovoltaic assembly

Info

Publication number: CN117013942B
Application number: CN202311254319.2A
Authority: CN
Inventors: 葛阳; 王禹; 赵锦毓
Original assignee: Trina Solar Co Ltd
Current assignee: Trina Solar Co Ltd
Priority date: 2023-09-27
Filing date: 2023-09-27
Publication date: 2024-03-08
Anticipated expiration: 2043-09-27
Also published as: CN117013942A

Abstract

The application provides an assembly frame and a photovoltaic assembly. An assembly bezel for connection with a laminate, comprising: a top plate and a bottom plate disposed opposite to each other in a first direction; the first tooth-shaped structures are sequentially arranged on the top surface of the top plate along the second direction; and a plurality of second tooth-shaped structures sequentially arranged on the bottom surface of the bottom plate along the second direction, wherein at least part of the projections of the second tooth-shaped structures in the first direction overlap with the plurality of first tooth-shaped structures. The assembly frame can improve the efficiency of stacking the photovoltaic assemblies, and has higher fault tolerance; in addition, the first tooth-shaped structure can be compatible with pressing blocks of different specifications, and meanwhile the mounting reliability is improved.

Description

Assembly frame and photovoltaic assembly

Technical Field

The application relates generally to the field of photovoltaics, and in particular to an assembly frame and a photovoltaic assembly.

Background

The major components of the photovoltaic module include a laminate and a module frame that is connected to an edge portion of the laminate. After the photovoltaic modules are produced, a plurality of photovoltaic modules are stacked together and then transported to an installation site. And in the transportation process, the adjacent photovoltaic modules can move relatively, and corner protectors are sleeved at the corners of the photovoltaic modules to avoid the movement of the photovoltaic modules. The corner protector, while capable of reducing relative movement of the photovoltaic modules, can result in increased transportation costs. In addition, as the size of the photovoltaic module increases, it is difficult to effectively and reliably fix the module frame by using the pressing block to fix the module frame, and serious slipping of the photovoltaic module may occur.

Disclosure of Invention

The technical problem that this application will solve is to provide a subassembly frame and photovoltaic module, and this subassembly frame and photovoltaic module can improve the efficiency of stacking up photovoltaic module to guarantee photovoltaic module's installation reliability.

The technical scheme that this application adopted for solving above-mentioned technical problem is an subassembly frame for be connected with the lamination piece, include: a top plate; a bottom plate disposed opposite to the top plate in a first direction; the first tooth-shaped structures are sequentially arranged on the top surface of the top plate along the second direction; and a plurality of second tooth-shaped structures sequentially arranged on the bottom surface of the bottom plate along the second direction, wherein at least part of projections of the second tooth-shaped structures along the first direction are overlapped with the plurality of first tooth-shaped structures.

In an embodiment of the present application, a height of a portion of the plurality of first tooth structures is greater than a height of the remaining portion of the plurality of first tooth structures.

In an embodiment of the present application, the partial first tooth form structure is closer to the side plate than the remaining partial first tooth form structure in the second direction.

In one embodiment of the present application, the tips of the plurality of first tooth structures are flush.

In an embodiment of the present application, top ends of a part of the remaining plurality of first tooth-shaped structures are plane or arc surfaces.

In an embodiment of the present application, the top ends of all the remaining first tooth-shaped structures are plane or arc surfaces.

In an embodiment of the present application, top ends of a part of the first tooth-shaped structures are plane surfaces or arc surfaces.

In an embodiment of the present application, top ends of all the first tooth-shaped structures are plane surfaces or arc surfaces.

In an embodiment of the present application, the number of the plurality of second tooth forms is greater than the number of the plurality of first tooth forms.

In an embodiment of the present application, projections of the plurality of second tooth-shaped structures along the first direction cover the plurality of first tooth-shaped structures.

In an embodiment of the present application, the size of the groove between every two adjacent second tooth structures is larger than the size of each of the first tooth structures.

In an embodiment of the present application, each of the first tooth-shaped structures includes a first tooth surface and a second tooth surface, the first tooth surface being closer to the side plate than the second tooth surface in the second direction, wherein the second tooth surface is in contact with the first tooth surface of an adjacent first tooth-shaped structure.

In one embodiment of the present application, the included angle between the second tooth surface and the first tooth surface in contact with the second tooth surface is 100 ° to 140 °.

In one embodiment of the present application, the second tooth surface includes an upper tooth surface and a lower tooth surface, one end of the upper tooth surface contacts the first tooth surface, the other end contacts one end of the lower tooth surface, and the other end of the lower tooth surface contacts the first tooth surface of the adjacent first tooth structure.

In one embodiment of the present application, an angle between the upper tooth surface and the first direction is smaller than an angle between the lower tooth surface and the first direction.

In an embodiment of the present application, adjacent first tooth-shaped structures are spaced apart by a preset distance in the second direction, wherein the preset distance is equal to or greater than 1mm.

The application still provides a photovoltaic module for solving above-mentioned technical problem, includes: a laminate; the first component frame, the second component frame, the third component frame and the fourth component frame are connected end to end in sequence and are connected with the lamination piece, wherein the first component frame and the third component frame or the second component frame and the fourth component frame are the component frames according to any one of the above.

The assembly frame and the photovoltaic assembly can improve the efficiency of stacking the photovoltaic assemblies, and have higher fault tolerance rate at the same time; the assembly frame can be compatible with pressing blocks of different specifications, and meanwhile, the assembly frame has the effect of improving the installation reliability.

Drawings

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below, wherein:

FIG. 1 is a schematic cross-sectional view of a component rim according to one embodiment of the present application;

FIG. 2 is an enlarged partial schematic view at rectangular box I in FIG. 1;

FIG. 3 is an enlarged partial schematic view of a first tooth form structure of another embodiment;

FIG. 4 is an enlarged partial schematic view of a first tooth form structure of a comparative example;

FIG. 5 is an enlarged partial schematic view of a first tooth form structure in an embodiment;

FIG. 6 is a schematic illustration of the angle between the upper tooth surface and the first direction and the angle between the lower tooth surface and the first direction in one embodiment;

FIG. 7 is a force analysis diagram of upper and lower flanks in one embodiment;

FIG. 8 is a schematic diagram of adjacent component frames stacked in accordance with one embodiment;

FIG. 9 is a schematic illustration of an adjacent component frame in another embodiment after stacking;

FIG. 10 is a schematic view of a prior art photovoltaic module after stacking adjacent photovoltaic modules;

FIG. 11 is a schematic view of another embodiment after stacking adjacent photovoltaic modules;

FIG. 12 is a schematic diagram of a photovoltaic module using a press block to secure the photovoltaic module in one embodiment;

FIG. 13 is a schematic diagram of another embodiment for securing a photovoltaic module using a press block;

FIG. 14 is an enlarged partial schematic view of a photovoltaic module using a press block in an embodiment;

fig. 15 is an enlarged partial schematic view of a photovoltaic module using a press block in another embodiment.

In the figure: laminate 10, upper photovoltaic module 20a, lower photovoltaic module 20b, corner protector 30, press block 40, press plate 41, third tooth structure 42, 42a, 42b, notch 110, top plate 120, bottom plate 130, first bottom plate 131, second bottom plate 132, side plate 140, first tooth surface 151, second tooth surface 152, flat 153, upper tooth surface 152a, lower tooth surface 152b, first tooth structure 150, 190, second tooth structure 160, cavity 170, support plate 180, first groove 210, second groove 220.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced otherwise than as described herein, and therefore the present application is not limited to the specific embodiments disclosed below.

As used in this application and in the claims, the terms "a," "an," "the," and/or "the" are not specific to the singular, but may include the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus.

In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application. Furthermore, although terms used in the present application are selected from publicly known and commonly used terms, some terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present application be understood, not simply by the actual terms used but by the meaning of each term lying within.

The module frame and photovoltaic module of the present application will be described with specific examples.

Fig. 1 is a schematic cross-sectional view of an assembly frame of an embodiment, fig. 2 is an enlarged partial view of rectangular frame I of fig. 1, and fig. 2 omits laminate 10 of fig. 1. Referring to fig. 1 and 2, the assembly frame 100 has a notch 110 for connection with the laminate 10. The edge portion of the laminate 10 is inserted into the slot 110 and the laminate 10 and the assembly frame 100 may be attached by applying an adhesive in the slot 110. It should be understood that the assembly frame of the present application does not include the laminate 10 of fig. 1.

As shown in fig. 1, the assembly frame 100 includes a top plate 120 and a bottom plate 130. The top plate 120 and the bottom plate 130 are disposed opposite to each other in the first direction D1, one end of the top plate 120 away from the laminate 10 in the second direction D2, one end of the bottom plate 130 away from the laminate 10 in the second direction D2 are respectively connected to both ends of the side plate 140, one end of the top plate 120 near the laminate 10 in the second direction D2, and one end of the bottom plate 130 near the laminate 10 in the second direction D2 extend toward the laminate 10.

Referring to fig. 1 and 2, 5 first tooth structures 150 are sequentially arranged on the top surface of the top plate 120 in the second direction D2, and 7 second tooth structures 160 are sequentially arranged on the bottom surface of the bottom plate 130 in the second direction D2. At least part of the projection of the second tooth structure 160 in the first direction D1 overlaps with 5 first tooth structures 150. It should be understood that the first tooth form structure 150 is not limited to 5 in the above embodiment, and the second tooth form structure 160 is not limited to 7 in the above embodiment, and a specific number may be set as required.

FIG. 8 is a schematic diagram of adjacent component frames stacked in accordance with one embodiment. Referring to fig. 8, the upper component frame and the lower component frame are denoted as an upper component frame 100a and a lower component frame 100b, respectively, for convenience of description. The side panels 140 in the upper assembly frame 100a are aligned up and down with the side panels 140 in the lower assembly frame 100b. As shown in connection with fig. 1, at least a portion of the projection of the second tooth structure 160 onto the first direction D1 overlaps at least a portion of the first tooth structure 150. As such, when the upper assembly frame 100a is stacked with the lower assembly frame 100b, at least a portion of the plurality of second tooth structures in the upper assembly frame 100a can engage with at least a portion of the first tooth structures in the lower assembly frame 100b.

In the embodiment of fig. 1, the number of second tooth structures 160 is greater than the number of first tooth structures 150, and the projection of the second tooth structures 160 in the second direction D2 can cover all of the first tooth structures 150. Alternatively, in fig. 1, the leftmost second tooth form 160 is aligned with the leftmost first tooth form 150 in the first direction D1, or the former is left of the latter in the first direction D1, and the rightmost second tooth form 160 is aligned with the rightmost first tooth form 150 in the first direction D1, or the former is right of the latter in the first direction D1. In this way, the projection of the second tooth structure 160 in the second direction D2 can be made to cover all of the first tooth structure 150. It will be appreciated that in some embodiments the number of second tooth formations is equal to or less than the number of first tooth formations, but the dimension of the second tooth formations in the second direction D2 is equal to or greater than the dimension of the first tooth formations in the second direction D2, such that the reduction in the number thereof is offset by increasing the dimension of the second tooth formations.

Further, in connection with fig. 1 and 8, thanks to the projection of the second tooth form 160 covering all of the first tooth form 150, all of the first tooth form in the lower assembly frame 100b meshes with the second tooth form in the upper assembly frame 100 a. This is advantageous in improving the frictional force between the upper assembly frame 100a and the lower assembly frame 100b, reducing the risk of falling off of the photovoltaic assembly by the constructor when disassembling the stacked photovoltaic assemblies. In addition, the second tooth 160 may increase friction between the assembly frame and the bracket (or purlin), which helps to improve the installation stability of the photovoltaic assembly.

FIG. 9 is a schematic view of an alternate embodiment with adjacent component frames stacked. One difference between fig. 9 and fig. 8 is that: in fig. 9, the side plate 140 in the upper component frame 100a is not aligned with the side plate 140 in the lower component frame 100b, the side plate 140 in the upper component frame 100a is located on the left side of the side plate 140 in the lower component frame 100b in the second direction D2, and a portion of the second tooth structure in the lower component frame 100b is located on the left side of the side plate 140 in the lower component frame 100b (as shown by rectangular frame II in fig. 9). Such differences may be caused by workers (or manipulators) not being in close alignment with adjacent photovoltaic modules when stacking the photovoltaic modules, and by external forces causing misalignment of the photovoltaic modules. Another difference is that: the number of second tooth forms of the frame of the assembly of fig. 9 is greater than the number of second tooth forms of the frame of the assembly of fig. 8. In fig. 2, the number of second tooth-shaped structures in the frame of the module is greater than the number of first tooth-shaped structures, so that even if the adjacent photovoltaic modules are not aligned, the first tooth-shaped structures still can be meshed with the second tooth-shaped structures, so that the friction force between the adjacent photovoltaic modules can meet the requirement. In addition, there is a benefit in that the number of second tooth formations in the frame of the assembly is greater than the number of first tooth formations: the workers or the manipulators do not need to consume long time for ensuring strict alignment between the adjacent photovoltaic modules when stacking the photovoltaic modules, namely, the fault tolerance rate of stacking the photovoltaic modules is increased, which is beneficial to improving the efficiency of stacking the photovoltaic modules.

With reference to fig. 1, there are grooves between adjacent second tooth forms 160, and as shown in connection with fig. 8, each first tooth form is embedded in a corresponding groove when the first tooth form is engaged with the second tooth form 160. In some embodiments, the size of the groove between each two adjacent second tooth forms 160 is greater than the size of each first tooth form, such that each first tooth form can be embedded in a corresponding groove, thereby improving the stability of the engagement between the first tooth form and the second tooth form.

Figure 10 is a schematic view of a prior art photovoltaic module after stacking adjacent photovoltaic modules. Referring to fig. 10, for convenience of description, the photoresist components located at the upper layer and the photovoltaic components located at the lower layer are respectively designated as an upper photovoltaic component 20a and a lower photovoltaic component 20b. Prior art to avoid relative movement between adjacent photovoltaic modules, corner protector 30 is wrapped around the corner of one of every two photovoltaic modules.

Figure 11 is a schematic view of an adjacent photovoltaic module after stacking in accordance with an embodiment of the present application. Referring to fig. 11, the photoresist components located at the upper layer and the photovoltaic components located at the lower layer are respectively marked as an upper photovoltaic component 200a and a lower photovoltaic component 200b, and the second tooth-shaped structure in the upper photovoltaic component 200a is engaged with the first tooth-shaped structure of the lower photovoltaic component 200 b. Therefore, there is a sufficient friction between the upper and lower photovoltaic modules 200a and 200b to avoid relative movement between the photovoltaic modules, which saves corner protections. In addition, the present application, because of the saving of corner protectors, occupies less space than the photovoltaic modules of the same stacked number as the photovoltaic modules in fig. 10, which increases the utilization of the transport space.

In order to more clearly understand the above technical effects, the following description will explain the above technical effects by way of examples and comparative examples. Referring to fig. 10 and 11, a plurality of photovoltaic modules are stacked together, and the stacked photovoltaic modules are referred to as a tray. Referring to table 1, the number of photovoltaic modules per one tray was 36 in each of examples and comparative examples. As shown in table 1 and fig. 10, the height h3 of each photovoltaic module in the comparative example was 30mm, 19 corner protectors 30 were required for 36 photovoltaic modules, and the total thickness of the 19 corner protectors 30 was 12.16mm. Thus, the total height of a one-support photovoltaic module in the comparative example was 1092.16mm (36×30mm+12.16mm). As shown in table 1 and fig. 11, the height h4 of each photovoltaic module in the examples is 30.3mm, and the reason why the height h4 is greater than the height h3 is that: in the embodiment, the top plate of each photovoltaic module is provided with a first tooth-shaped structure, in the embodiment, the angle bead 30 is not required to be arranged, the accumulated heights of 36 photovoltaic modules are 1090.8mm (36 multiplied by 30.3 mm), after 36 photovoltaic modules are stacked in sequence, the second tooth-shaped structure in the upper Fang Guangfu module is meshed with the first tooth-shaped structure in the lower Fang Guangfu module, the height of the overlapped part after the meshing is 0.3mm, 35 meshing parts are arranged among 36 photovoltaic modules, and therefore, the total height of one photovoltaic module in the embodiment is 1080.3mm (1090.8 mm-35 multiplied by 0.3 mm). As can be seen from the above calculation process, the space occupied by each photovoltaic module in the embodiment of the present application is smaller in the case that the number of photovoltaic modules per module is the same as that of the comparative example.

Table 1 table of total height calculation per unit photovoltaic module in examples and comparative examples

Referring to fig. 1, in one embodiment, the base plate 130 includes a first base plate 131 and a second base plate 132. In the second direction D2, the first bottom plate 131 is located at the left side of the second bottom plate 132, and one end is connected to the second bottom plate 132, and the first bottom plate 131, the second bottom plate 132, and the support plate 180 meet at the same point. In the first direction D1, the first bottom plate 131 corresponds to the cavity 170. After the assembly frame 100 is coupled to the bracket, the assembly frame 100 may be coupled to the bracket using bolts through the second bottom plate 132. During service of assembly frame 100, second chassis 132 may be subjected to shear forces exerted by the bolts. Providing the second toothed structure 160 on the bottom surface of the second bottom plate 132 helps to increase the friction between the assembly frame 100 and the bracket, but the second toothed structure at the second bottom plate 132 weakens the second bottom plate 132 against shear. The first base plate 132 is not subjected to the shearing force applied by the bolts, compared to the second base plate 132, and the main external force to which it is subjected is the pressure parallel to the first direction D1, and the second tooth structure 160 at the first base plate 132 does not impair the ability of the first base plate 132 to resist the pressure. Based on the above analysis, the second tooth-shaped structure 160 of the present application is only disposed on the bottom surface of the first bottom plate 131, so that the shearing resistance of the second bottom plate 132 can be prevented from being impaired while ensuring that the adjacent first tooth-shaped structure and second tooth-shaped structure can be accurately engaged.

The first tooth form structure and the second tooth form structure of the present application will be described further below.

Referring to fig. 2, the top ends of all the first tooth structures 150 are flush with a first reference line, which is parallel to the second direction D2. The left three first tooth structures 150 have a height h1 between their top and bottom ends, and the right two first tooth structures 150 have a height h2 between their top and bottom ends, the height h1 being greater than the height h2. Since the tips of all of the first tooth structures 150 are flush with the first reference line, the height h1 and the height h2 are both obtained based on the first reference line measurement. In some embodiments, h1 is 0.4mm and h2 is 0.3mm.

Fig. 3 shows a schematic view of a first tooth structure 150 in another embodiment. The same points as in fig. 2 and 3 include: the top ends of all the first tooth structures 150 in fig. 3 are also flush with the first reference line, and the left 3 first tooth structures 150 have a height h1, and the right 2 first tooth structures 150 have a height h2. The differences between fig. 2 and fig. 3 include: in fig. 2, the second tooth surface 152 of the first tooth-shaped structure 150 is a folded surface composed of an upper tooth surface 152a and a lower tooth surface 152 b; in fig. 3, the first tooth structure 150 is a flat surface. This part will be described in detail later, and is not developed here.

Fig. 4 is an enlarged partial schematic view of a first tooth form structure of a comparative example. Referring to fig. 3 and 4 in contrast, the height of the left 3 first tooth forms 190 in fig. 3 is greater than the height of the right 2 first tooth forms 190, similar to fig. 4. The main differences between fig. 3 and fig. 2 are: in fig. 3, the bottom ends of all the first tooth-shaped structures 190 are flush with the second reference line (parallel to the second direction D2), and the top ends of the first tooth-shaped structures 190 are located at different heights in the first direction D1, specifically: the top ends of the left 3 first tooth forms 190 are located above the top ends of the right 2 first tooth forms 190 in the first direction D1.

The first tooth form 150 of fig. 3 has the advantage of a slow tip wear rate and a consistent fit with each third tooth form in the compact, as compared to fig. 4. The specific development is as follows.

First, as shown in fig. 3 and 11 in combination, since the top ends of all the first tooth structures 150 in fig. 3 are aligned with the first reference line, the top ends of the first tooth structures 150 in the lower photovoltaic module 200b are all in contact with the second tooth structures in the upper photovoltaic module 200 a. Looking back at fig. 4, the tips of the first tooth form structures 190 are at different heights, which results in the tips of the higher first tooth form structures 190 contacting the second tooth form structures in the adjacent photovoltaic module, and the tips of the lower first tooth form structures 190 not contacting the second tooth form structures. During transportation of the photovoltaic modules, relative movement may occur between adjacent photovoltaic modules, which results in wear of the tips of the first tooth structure, and increasing the number of tips in contact with the second tooth structure helps to slow the rate of wear of the tips of the first tooth structure. Therefore, the wear rate of the tip of the first tooth form structure 150 in FIG. 3 is slower than the first tooth form structure 190 in FIG. 4.

Next, reference is made to a schematic diagram of a photovoltaic module using a briquette in an embodiment shown in fig. 12. The pressing plate 41 of the pressing block 40 is provided with a plurality of third tooth-shaped structures 42 on the surface facing the laminated piece 10, and the pressing plate 41 is arranged above the top plate 120 of the assembly frame 100 along the first direction D1. Pressure is applied to the module frame 100 by the press block 40 to fix the photovoltaic module. In fig. 12, third tooth formation 42 engages with a first tooth formation on the top surface of top plate 120, which helps to increase friction between press block 40 and assembly frame 100, preventing the photovoltaic assembly from slipping off.

As shown in fig. 3 and 12, the top ends of the first tooth-shaped structures 150 are flush, and when the first tooth-shaped structures 150 are meshed with the third tooth-shaped structures in the pressing block 40, the positional relationship between the first tooth-shaped structures 150 and each third tooth-shaped structure is the same (or substantially the same), which helps to improve the consistency of the fit between the first tooth-shaped structures 150 and each third tooth-shaped structure, so that the stress between each first tooth-shaped structure 150 is ensured to be uniform, and the damage to the first tooth-shaped structures 150 caused by uneven stress is avoided. Looking back at fig. 4, because the heights of the top ends of the first tooth-shaped structures 190 are different, the difference in the positional relationship between the first tooth-shaped structures 190 and each third tooth-shaped structure is large, which results in poor adaptability between the first tooth-shaped structures 190 and each third tooth-shaped structure, and further results in uneven stress between the first tooth-shaped structures 190.

As shown in conjunction with fig. 2 and 12, the first tooth form structures 150 with height h2 are closer to the laminate 10 in the second direction D2 than the first tooth form structures 150 with height h1, or, in other words, the first tooth form structures 150 with height h1 are closer to the side plate 140 in the second direction D2 than the first tooth form structures 150 with height h2. In some cases, for example, when the photovoltaic module is subjected to a short temporary large external force, the module frame 100 may move rightward in the second direction D2. The differentiated design of the height of the first tooth form structure in fig. 2 may prevent the component rim 100 from slipping off under the above conditions. Further description will be made with reference to fig. 13.

In fig. 13, the assembly frame 100 moves rightward by a certain distance in the second direction D2 due to a large external force. As shown in connection with FIG. 2, the first tooth form 150 having a height h2 is no longer engaged with the third tooth form 42 and the first tooth form 150 having a height h1 is still engaged with the third tooth form 42 as the assembly frame 100 is moved a distance to the right. Thanks to the fact that the height h1 is greater than the height h2, and the first tooth-shaped structure with the height h1 is far away from the pressing piece 10, when the assembly frame 100 is further far away from the pressing piece due to external force, the first tooth-shaped structure 150 with the height h1 can prevent the assembly frame 100 from further moving, so that the photovoltaic assembly is prevented from slipping. In other embodiments, the first tooth form structure having a height h1 may also be located to the right of the first tooth form structure having a height h2.

In addition, referring to fig. 1 and 2, a first groove 210 is formed between adjacent first tooth structures 150 having a height h1, and a second groove 220 is formed between adjacent first tooth structures 150 having a height h2, wherein the depth of the first groove 210 is greater than that of the second groove 220. The first groove 210 may significantly weaken the strength of the top plate 120 as compared to the second groove 220. Thus, reducing the number of first grooves 210 helps to reduce the degree of weakness to the top plate 120 where the thickness of the top plate 120 is the same. If all the first tooth structures 150 are set to have a height h1, the strength of the top plate 120 may not be satisfied although the photovoltaic module is prevented from slipping. Therefore, the present application designs the portion of the first tooth-shaped structure 150 to have the height h1, so that the strength of the top plate 120 is prevented from being excessively weakened, thereby simultaneously avoiding the slipping of the photovoltaic module and ensuring that the top plate 120 meets the target strength.

Fig. 5 is an enlarged partial schematic view of a first tooth structure 150 having a height h2 in one embodiment. Referring to fig. 2 and 5, in this embodiment, the top end of the first tooth structure 150 having a height h2 is a flat surface 153. In the case where the first tooth form 150 having a height h2 is not engaged with the third tooth form, as shown in connection with fig. 13, the flat surface 153 may increase the friction between the first tooth form 150 and the pressing plate 41, thereby helping to prevent the photovoltaic module from slipping off. In other embodiments, the top end of the first tooth-shaped structure 150 with the height h2 may be an arc surface, and the arc surface can also increase the friction between the first tooth-shaped structure 150 and the pressing plate 41. In addition, the top end of the first tooth-shaped structure with the whole height h2 is a plane or an arc surface; the top end of the first tooth-shaped structure with the partial height h2 can be a plane or an arc surface. In other embodiments, the top ends of all the first tooth-shaped structures are plane or arc surfaces, or the top ends of part of the first tooth-shaped structures are plane or arc surfaces, so that friction force between the first tooth-shaped structures and the pressing block can be increased by the plane and the arc surfaces, and the slipping of the photovoltaic module can be avoided.

FIG. 3 is an enlarged partial schematic view of a component rim of another embodiment. Referring to fig. 3, each first tooth structure 150 includes a first tooth surface 151 and a second tooth surface 152. The first tooth surface 151 is located on the left side of the second tooth surface 152 in the second direction D2; alternatively, as shown in connection with fig. 1, the first tooth surface 151 is closer to the side plate 140 than the second tooth surface 152 in the second direction D2. The second tooth surface 152 contacts (i.e., intersects in a line with) the first tooth surface 151 of the adjacent first tooth formation 150 on the right side thereof.

Referring to FIG. 3, in one embodiment, the angle θ between the second tooth surface 152 and the first tooth surface 151 in contact therewith is 100-140; the included angle θ may be 100 °, 110 °, 120 °, 130 °, or 140 °. The specifications of the pressing blocks in the photovoltaic field are uneven, and the geometric parameters of the third tooth-shaped structures in different pressing blocks have larger differences. The above-described angular range facilitates compatibility of the first tooth form 150 with a third tooth form of a different geometry. Further description will be made with reference to fig. 14 and 15.

In fig. 14, two third tooth formations 42a are engaged between adjacent first tooth formations 150. In fig. 15, the third tooth formation 42b is larger in size than the third tooth formation 42a in fig. 14. Thanks to the above-mentioned design of the angle θ, one third tooth structure 42b can still be meshed between adjacent first tooth structures 150 in case of a larger size of the third tooth structure 42b. Therefore, even if the press block fixing photovoltaic module with different specifications is used, the module frame of the application can still be matched with the press block fixing photovoltaic module, in other words, the first tooth-shaped structure of the application can be compatible with the third tooth-shaped structure with different geometric parameters.

In some embodiments, adjacent first tooth structures are spaced a predetermined distance apart in the second direction D2. Wherein the preset distance is equal to or greater than 1mm, for example 1mm, 2mm or 3mm. The arrangement of the first tooth form structures at predetermined intervals also contributes to the compatibility of the first tooth form structures with third tooth form structures of different geometrical parameters.

Referring to fig. 2, the first tooth form structure 150 has a tooth pitch D1, the tooth pitch D1 being the largest dimension of the first tooth form structure 150 in the second direction D2. The pitch of the first tooth form 150 in fig. 2 may be the same, which facilitates the adaptation of the first tooth form 150 to the third tooth form in the compact.

Referring to fig. 2 and 6, the second tooth surface 152 includes an upper tooth surface 152a and a lower tooth surface 152b. One end of the upper tooth surface 152a contacts one end of the first tooth surface 151, the other end contacts one end of the lower tooth surface 152b, and the other end of the lower tooth surface 152b contacts the first tooth surface of the first tooth structure 150 adjacent and on the right side. In some embodiments, the angle between the upper tooth surface 152a and the first direction D1 is less than the angle between the lower tooth surface 152b and the first direction D1. Specifically, referring to fig. 6, the angle between the upper tooth surface 152a and the first direction D1 is α, the angle between the lower tooth surface 152b and the first direction D1 is β, and the angle α is smaller than the angle β. The angle α may be 25 °, 30 °, 37 ° or 40 °, and the angle β may be 55 °, 60 °, 72 ° or 75 °. The included angle alpha is larger than the included angle beta, so that the installation reliability of the photovoltaic module is improved, and the slipping of the photovoltaic module is avoided. This will be further described below.

Referring to the force analysis diagram of the upper tooth surface 152a and the lower tooth surface 152b shown in fig. 7, an external force F1 of the pressing block acting on the upper tooth surface 152a can be decomposed into two components: a component force F1-x parallel to the second direction D2, and a component force F1-y parallel to the first direction D1. The external force F2 of the pressing block acting on the lower tooth surface 152b can be decomposed into two components: a component force F2-x parallel to the second direction D2, and a component force F2-y parallel to the first direction D1. In the case where the external force F1 is equal to (including approximately equal to) the external force F2, the component force F1-x is greater than the component force F2-x, or the upper tooth surface 152a can distribute the external force more in the second direction D2 than the lower tooth surface 152b, so that the photovoltaic module can be prevented from slipping horizontally (i.e., in the second direction D2) better.

Referring to fig. 6, the angle σ between the lower tooth surface 152b and the first tooth surface 151 of the adjacent first tooth-like structure is 100 ° to 140 °, for example, 100 °, 110 °, 120 °, 130 °, or 140 °. The included angle sigma helps the first tooth form 150 to be compatible with a third tooth form of a different geometry.

Further, referring to fig. 3, the second tooth surface 152 in fig. 3 is a flat surface, excluding the upper tooth surface and the lower tooth surface. In comparison with the second tooth surface 152 in fig. 3, the second tooth surface 152 is divided into an upper tooth surface 152a and a lower tooth surface 152b in fig. 2, and the included angle α is made larger than the included angle β. Thus, the two technical effects of "the upper tooth surface 152a can distribute the external force more in the second direction D2" and "the included angle between the lower tooth surface 152b and the adjacent first tooth surface can be compatible with the third tooth-shaped structure of different geometric parameters" are simultaneously considered.

Another aspect of the present application also provides a photovoltaic module. The photovoltaic module includes: the laminate, the first component frame, the second component frame, the third component frame, and the fourth component frame. The first component frame, the second component frame, the third component frame and the fourth component frame are connected end to end in sequence and are all connected with the lamination piece. The first component frame and the third component frame, or the second component frame and the fourth component frame are component frames as described above, that is, the first component frame and the third component frame have a first tooth-shaped structure and a second tooth-shaped structure, the second component frame and the fourth component frame do not have a first tooth-shaped structure and a second tooth-shaped structure, or the first component frame and the third component frame do not have a first tooth-shaped structure and a second tooth-shaped structure, and the second component frame and the fourth component frame have a first tooth-shaped structure and a second tooth-shaped structure. Therefore, under the condition that the adhesive overflows to the top plate, as the top plate of the partial frame is not provided with the first tooth-shaped structure, the contact area between the adhesive and the top plate is smaller, and the difficulty of cleaning the adhesive is reduced.

While the basic concepts have been described above, it will be apparent to those skilled in the art that the foregoing application disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements, and adaptations of the present application may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within this application, and are therefore within the spirit and scope of the exemplary embodiments of this application.

Meanwhile, the present application uses specific words to describe embodiments of the present application. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the present application. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the present application may be combined as suitable.

In some embodiments, numbers describing the components, number of attributes are used, it being understood that such numbers being used in the description of embodiments are modified in some examples by the modifier "about," approximately, "or" substantially. Unless otherwise indicated, "about," "approximately," or "substantially" indicate that the number allows for a 20% variation. Accordingly, in some embodiments, numerical parameters set forth in the specification and claims are approximations that may vary depending upon the desired properties sought to be obtained by the individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and employ a method for preserving the general number of digits. Although the numerical ranges and parameters set forth herein are approximations that may be employed in some embodiments to confirm the breadth of the range, in particular embodiments, the setting of such numerical values is as precise as possible.

Claims

1. An assembly frame for connection to a laminate, comprising:

a top plate;

a bottom plate disposed opposite to the top plate in a first direction;

the first tooth-shaped structures are sequentially arranged on the top surface of the top plate along the second direction; and

the second tooth-shaped structures are sequentially arranged on the bottom surface of the bottom plate along the second direction, at least part of the projections of the second tooth-shaped structures along the first direction are overlapped with the first tooth-shaped structures, each first tooth-shaped structure comprises a first tooth surface and a second tooth surface, the first tooth surface is closer to the side plate than the second tooth surface in the second direction, the second tooth surface is contacted with the first tooth surface of the adjacent first tooth-shaped structure, the second tooth surface comprises an upper tooth surface and a lower tooth surface, one end of the upper tooth surface is contacted with the first tooth surface, the other end of the upper tooth surface is contacted with one end of the lower tooth surface, and the other end of the lower tooth surface is contacted with the first tooth surface of the adjacent first tooth-shaped structure.

2. The assembly frame of claim 1, wherein a height of a portion of the teeth of the first plurality of tooth structures is greater than a height of a remaining portion of the teeth.

3. The assembly frame of claim 2, wherein the partial teeth are closer to the side plate than the remaining partial teeth in the second direction.

4. The assembly frame of claim 2, wherein the top ends of the plurality of first tooth structures are flush.

5. The assembly frame of claim 2, wherein the tips of some of the remaining teeth are planar or arcuate.

6. The assembly frame of claim 2, wherein the tips of all of the remaining teeth are planar or arcuate.

7. The assembly frame of claim 1, wherein tips of portions of the teeth of the first plurality of tooth structures are planar or arcuate.

8. The assembly frame of claim 1, wherein the top ends of all of the plurality of first tooth structures are planar or circular arc surfaces.

9. The assembly frame of claim 1, wherein a number of the plurality of second tooth structures is greater than a number of the plurality of first tooth structures.

10. The assembly bezel of claim 9, wherein projections of the plurality of second tooth structures along the first direction overlap the plurality of first tooth structures.

11. The assembly frame of claim 1, wherein the size of the groove between each two adjacent second tooth forms is greater than the size of each of the first tooth forms.

12. The assembly frame of claim 1, wherein an angle between the second tooth surface and the first tooth surface in contact therewith is 100 ° to 140 °.

13. The assembly frame of claim 1, wherein an angle between the upper tooth surface and the first direction is less than an angle between the lower tooth surface and the first direction.

14. The assembly frame of claim 1, wherein adjacent first tooth structures are spaced apart a predetermined distance in the second direction, wherein the predetermined distance is equal to or greater than 1mm.

15. A photovoltaic module, comprising:

a laminate;

first subassembly frame, second subassembly frame, third subassembly frame and fourth subassembly frame end to end in proper order, and all with the lamination is connected, wherein, first subassembly frame with third subassembly frame, or second subassembly frame with fourth subassembly frame is the subassembly frame of any one of claims 1 to 14.