Photovoltaic module steel frame and photovoltaic module

Abstract

The utility model discloses a photovoltaic assembly steel frame and a photovoltaic assembly, the photovoltaic assembly steel frame comprises a side plate, a first horizontal plate fixed on the first side of the side plate and a baffle plate, when the photovoltaic assembly steel frame and a photovoltaic laminated member are bonded through adhesive glue, the surface of the baffle plate deviating from the first horizontal plate is lower than or flush with the light facing surface of the photovoltaic laminated member; the end, away from the side plate, of the first horizontal plate is connected with a first bent plate, the end, away from the first horizontal plate, of the first bent plate is higher than the first horizontal plate, and the first bent plate, the first horizontal plate and the side plate define a glue accumulation groove used for containing adhesive glue. In the embodiment of the utility model, the baffle plays a certain glue blocking role and can prevent the adhesive from overflowing.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a photovoltaic component steel frame and a photovoltaic component. Background Art

[0002] The photovoltaic assembly comprises a photovoltaic laminate and a frame arranged around the photovoltaic laminate.

[0003] At present, the frame usually has an A surface located above the light-facing surface of the photovoltaic laminate, and the A surface protrudes from the photovoltaic laminate, and a dust accumulation zone is easily formed at the edge of the A surface. In order to reduce dust accumulation, an anti-dust accumulation frame without an A surface is usually used.

[0004] However, when the anti-dust frame without an A-side is bonded to the photovoltaic laminate by adhesive, adhesive overflow is likely to occur. Utility Model Content

[0005] The utility model provides a photovoltaic assembly steel frame and a photovoltaic assembly, aiming at least to solve the technical problem in the prior art that when the dust-proof frame and the photovoltaic laminate are bonded by adhesive, adhesive overflow is likely to occur.

[0006] In a first aspect, an embodiment of the utility model provides a photovoltaic module steel frame, comprising a side plate, a first horizontal plate fixed to a first side of the side plate, and a baffle, wherein when the photovoltaic module steel frame is bonded to a photovoltaic laminate by adhesive, a surface of the baffle facing away from the first horizontal plate is lower than or flush with a light-facing surface of the photovoltaic laminate;

[0007] The end of the first horizontal plate facing away from the side plate is connected to a first bending plate, the end of the first bending plate away from the first horizontal plate is higher than the first horizontal plate, and the first bending plate, the first horizontal plate and the side plate form a glue accumulation groove for accommodating the adhesive.

[0008] Optionally, the depth of the glue accumulation groove is greater than or equal to 1 mm and less than or equal to 1.5 mm, and / or the width of the notch of the glue accumulation groove is greater than or equal to 10 mm and less than or equal to 12 mm.

[0009] Optionally, the first bending plate is arranged at an angle, and an angle between the first horizontal plate and the first bending plate is 110°-130°.

[0010] Optionally, it also includes a support plate, one end of which is connected to the first bending plate, and the other end of the support plate is connected to the bottom plate, the first horizontal plate, the support plate and the bottom plate form a cavity with a side opening, and the side opening is arranged opposite to the support plate.

[0011] Optionally, the photovoltaic module steel frame is a first frame with a mounting hole, the first frame is used to be arranged on a first side of the photovoltaic laminate, the mounting hole is used to connect a threaded fastener, and a gasket is passed through the threaded fastener;

[0012] The support plate is connected to the bottom plate via a bent portion, the bent portion and the bottom plate enclose a avoidance cavity, the avoidance cavity is connected to the cavity, and the avoidance cavity is used for placing the gasket;

[0013] Alternatively, along the direction from the first horizontal plate to the bottom plate, the distance between the side plate and the support plate gradually increases, and the bottom of the cavity is used for placing the gasket.

[0014] Optionally, the photovoltaic module steel frame is a second frame for being arranged on a second side edge of the photovoltaic laminate, the second side edge is perpendicular to the first side edge, and the distance between the side plate and the support plate remains unchanged along the direction from the first horizontal plate to the bottom plate.

[0015] Optionally, the first bending plate is connected to the supporting plate via a second horizontal plate.

[0016] Optionally, it further includes a second bent plate connected to the first horizontal plate, the second bent plate extends away from the baffle, and one end of the second bent plate away from the first horizontal plate is connected to the side plate.

[0017] Optionally, the second bending plate is connected to the side plate via a connecting plate, the second bending plate, the connecting plate and the side plate form a second groove, and the second groove is communicated with the glue accumulation groove.

[0018] Optionally, the photovoltaic module steel frame further has a side adhesive groove for accommodating the adhesive, and the side adhesive groove is located between the baffle and the first horizontal plate.

[0019] Optionally, a third bent plate is connected to one end of the baffle plate away from the side plate, the third bent plate extends toward the first horizontal plate, and the third bent plate, the baffle plate and the side plate form a first groove.

[0020] Optionally, the distance between the third bending plate and the side wall of the photovoltaic laminate is greater than or equal to 0 mm and less than or equal to 0.5 mm, and / or the width of the notch of the first groove is greater than or equal to 1 mm and less than or equal to 1.5 mm, and / or the depth of the first groove is greater than or equal to 0.5 mm and less than or equal to 1.5 mm.

[0021] Optionally, the photovoltaic module steel frame is formed by bending a steel plate, and the thickness of the steel plate is 0.8 mm-1 mm.

[0022] Optionally, one end of the bottom plate away from the support plate is connected to a fourth bending plate.

[0023] In a second aspect, an embodiment of the utility model provides a photovoltaic module, which includes a photovoltaic laminate and at least one photovoltaic module steel frame as described in the first aspect.

[0024] Optionally, the photovoltaic module steel frame includes a side panel, a first horizontal panel fixed to the first side of the side panel and a baffle. When the photovoltaic module steel frame is bonded to the photovoltaic laminate, the height difference between the surface of the baffle facing away from the first horizontal panel and the light-facing surface of the photovoltaic laminate is less than or equal to 0.5 mm.

[0025] Optionally, the first horizontal plate is connected to a first bent plate at one end away from the side plate, and the photovoltaic module steel frame further comprises a support plate, one end of the support plate is connected to the first bent plate via a second horizontal plate, and the other end of the support plate is connected to a bottom plate;

[0026] When the photovoltaic module steel frame is bonded to the photovoltaic laminate, the distance between the top surface of the second horizontal plate facing away from the bottom plate and the backlight surface of the photovoltaic laminate is greater than or equal to 0 mm and less than or equal to 0.3 mm, and / or the width of the top surface of the second horizontal plate is greater than or equal to 0.5 mm and less than or equal to 2 mm.

[0027] Optionally, the photovoltaic module steel frame and the photovoltaic laminate are bonded to each other by adhesive.

[0028] In the embodiment of the utility model, through the provision of the first bending plate, it can be ensured that the adhesive contained in the adhesive accumulation groove meets a certain bonding thickness, thereby ensuring the bonding strength between the photovoltaic module steel frame and the photovoltaic laminate; in addition, compared with the frame without an A-side at all, the baffle in the utility model plays a certain glue blocking role, which can prevent the adhesive from overflowing, thereby reducing the possibility of glue overflow on the front of the photovoltaic laminate; in addition, since the surface of the baffle away from the first horizontal plate is lower than or flush with the light-facing surface of the photovoltaic laminate, the photovoltaic module steel frame has an anti-dust accumulation effect, avoiding the dust accumulation belt blocking the light-facing surface of the photovoltaic laminate, increasing the light-facing area of ​​the photovoltaic laminate, thereby ensuring the power generation efficiency of the photovoltaic module.

[0029] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1A schematic diagram of the structure of a photovoltaic module steel frame provided in Embodiment 1 of the present utility model;

[0031] Figure 2 A schematic diagram of the structure of a photovoltaic module steel frame provided in the second embodiment of the utility model;

[0032] Figure 3 A schematic diagram of the structure of the cooperation between the photovoltaic module steel frame and the threaded fastener provided in the first embodiment of the utility model;

[0033] Figure 4 A schematic diagram of a three-dimensional structure in which a photovoltaic module steel frame provided in the first embodiment of the utility model is connected to a photovoltaic bracket through threaded fasteners;

[0034] Figure 5 A schematic diagram of the side view structure of the photovoltaic assembly steel frame provided in the first embodiment of the utility model connected to the photovoltaic bracket through threaded fasteners;

[0035] Figure 6 A schematic diagram of the structure of a photovoltaic module steel frame provided in Embodiment 3 of the present utility model;

[0036] Figure 7 A schematic diagram of the structure of a photovoltaic module steel frame provided in Embodiment 4 of the present utility model;

[0037] Figure 8 A schematic diagram of the structure of a photovoltaic module steel frame provided in Embodiment 5 of the present utility model;

[0038] Fig. 9 A schematic diagram of the structure of a photovoltaic module steel frame provided in Embodiment 6 of the present utility model;

[0039] Fig.10 A schematic diagram of the structure of the cooperation between the photovoltaic module steel frame and the photovoltaic laminate provided in the first embodiment of the utility model;

[0040] Fig.11 This is a schematic structural diagram of the cooperation between the photovoltaic module steel frame and the photovoltaic laminate provided in the second embodiment of the present utility model.

[0041] Reference numerals:

[0042] 1- photovoltaic module steel frame, 101-side plate, 102-first horizontal plate, 103-baffle, 104-first bending plate, 105-support plate, 106-bottom plate, 1061-mounting hole, 107-second bending plate, 108-bending part, 1081-horizontal section, 1082-vertical section, 109-third bending plate, 110-connecting plate, 111-second horizontal plate, 112-fourth bending plate, 113-side glue groove, 114-glue accumulation groove, 115-cavity, 116-side opening, 117-avoidance cavity, 118-first groove, 119-second groove, 2-photovoltaic laminate, 3-threaded fastener, 4-gasket, 5-photovoltaic bracket, 6-nut, 7-adhesive. DETAILED DESCRIPTION

[0043] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0044] Reference Fig.10 and Fig.11 The embodiment of the utility model discloses a photovoltaic module, including a photovoltaic laminate 2 and at least one photovoltaic module steel frame 1. The photovoltaic module steel frame 1 is installed at the edge of the photovoltaic laminate 2. The photovoltaic module steel frame 1 and the photovoltaic laminate 2 are bonded by adhesive. The adhesive 7 can be a silicone structural adhesive with good bonding strength, which can ensure the bonding strength between the steel frame and the photovoltaic laminate 2.

[0045] Specifically, the photovoltaic laminate 2 is also called a solar laminate, and the photovoltaic laminate 2 may include a glass cover plate, an upper packaging film, a battery string, a lower packaging film, and a back plate arranged in sequence. The shape of the photovoltaic laminate 2 is usually rectangular or regular rectangular.

[0046] The photovoltaic assembly may include two first frames and two second frames. The two first frames may be relatively arranged on both sides of the long side of the photovoltaic laminate, and the two second frames may be relatively arranged on both sides of the short side of the photovoltaic laminate.

[0047] Reference Figure 1 and Figure 2The embodiment of the utility model discloses a photovoltaic module steel frame. The steel material used in the photovoltaic module steel frame 1 can be carbon steel. The yield strength of the steel material can be greater than 345MPa, and the tensile strength can be greater than 490MPa. Its strength can reach 2-3 times the strength of aluminum alloy. The photovoltaic module steel frame 1 is specifically made of bent steel plate. The thickness of the steel plate is 0.8mm-1mm. For example, the thickness of the steel plate can be 0.8mm, 0.82mm, 0.85mm, 0.9mm, 0.95mm, 1mm, etc. The thickness of the steel plate is preferably 1mm. At present, the material of the frame is mainly aluminum alloy. Affected by the processing technology of the material itself, the strength of the aluminum alloy cannot be too high, otherwise the extrusion molding process is difficult to achieve; in addition, the overall strength of the aluminum alloy frame is not high, resulting in a weak load capacity of the photovoltaic module. Although the current photovoltaic module can meet the load capacity required by the outdoor environment, the frame material is relatively wasteful. In the embodiment of the utility model, the strength of the steel is relatively high. When the same load-bearing capacity of the aluminum alloy frame is achieved, the amount of steel used is lower and the material cost is lower.

[0048] The photovoltaic module steel frame includes a side panel 101, a first horizontal panel 102 fixed to the first side of the side panel 101, and a baffle 103. When the photovoltaic module steel frame 1 is bonded to the photovoltaic laminate 2 by adhesive, the surface of the baffle 103 facing away from the first horizontal panel 102 is lower than or flush with the light-facing surface of the photovoltaic laminate 2.

[0049] The side of the photovoltaic laminate 2 that receives light is the light-facing side, and the side of the photovoltaic laminate opposite to the light-facing side is the backlight side. Fig.10 and Fig.11 , the surface of the baffle 103 away from the first horizontal plate 102 is lower than or flush with the light-facing surface of the photovoltaic laminate 2, that is, along the direction of the baffle 103 toward the first horizontal plate 102, the distance between the surface of the baffle 103 away from the first horizontal plate 102 and the backlight surface of the photovoltaic laminate is less than or equal to the thickness of the photovoltaic laminate. Figure 8 In addition, since the surface of the baffle 103 facing away from the first horizontal plate 102 is lower than or flush with the light-facing surface of the photovoltaic laminate 2, the photovoltaic module steel frame 1 has an anti-dust accumulation effect, avoiding the dust accumulation belt from blocking the light-facing surface of the photovoltaic laminate 2, increasing the light-facing area of ​​the photovoltaic laminate, and thus ensuring the power generation efficiency of the photovoltaic module.

[0050] Furthermore, when the photovoltaic module steel frame 1 is bonded to the photovoltaic laminate 2, the height difference between the surface of the baffle 103 facing away from the first horizontal plate 102 and the light-facing surface of the photovoltaic laminate 2 is less than or equal to 0.5 mm.

[0051] Specifically, when the surface of the baffle 103 away from the first horizontal plate 102 is flush with the light-facing surface of the photovoltaic laminate 2, the height difference between the surface of the baffle 103 away from the first horizontal plate 102 and the light-facing surface of the photovoltaic laminate 2 is 0 mm. When the surface of the baffle 103 away from the first horizontal plate 102 is lower than the light-facing surface of the photovoltaic laminate 2, the height difference between the surface of the baffle 103 away from the first horizontal plate 102 and the light-facing surface of the photovoltaic laminate 2 is greater than 0 mm and less than or equal to 0.5 mm, such as 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.45 mm, 0.5 mm, etc., so that the water flow can wash away the dust on the light-facing surface of the photovoltaic laminate 2.

[0052] The baffle 103 can be arranged parallel to the first horizontal plate 102, and the baffle 103 is specifically connected to the side plate 101 through an arc chamfer. Compared with the frame without A surface, the baffle 103 in the utility model plays a certain role of blocking glue, which can prevent the overflow of adhesive, thereby reducing the possibility of glue overflow on the front of the photovoltaic laminate;

[0053] Reference Figures 1 to 3 , Figures 6 to 9 The end of the baffle 103 facing away from the side plate 101 is connected to the third bent plate 109, the third bent plate 109 extends toward the first horizontal plate 102, and the third bent plate 109, the baffle 103 and the side plate 101 form a first groove 118. The distance between the third bent plate 109 and the side wall of the photovoltaic laminate 2 is greater than or equal to 0 mm and less than or equal to 0.5 mm, and / or the width of the notch of the first groove 118 is greater than or equal to 1 mm and less than or equal to 1.5 mm, and / or the depth of the first groove 118 is greater than or equal to 0.5 mm and less than or equal to 1.5 mm.

[0054] Specifically, in some embodiments, referring to Figures 1 to 9 , a third bending plate 109 is provided in the photovoltaic module steel frame 1. The bottom end of the third bending plate 109 facing the first horizontal plate 102 is higher than the first horizontal plate 102. During the framing process of the photovoltaic laminate and the photovoltaic module steel frame, the first groove can accommodate the overflowed adhesive, thereby preventing the adhesive from overflowing. The third bending plate 109 protrudes downward from the baffle 103. The depth of the first groove 118 can be 0.5mm, 0.9mm, 1mm, 1.2mm, 1.3mm, 1.5mm, etc., and the depth of the first groove 118 is preferably 0.9mm-1.2mm. When the depth of the first groove 118 is within the above range, it can ensure that there is enough adhesive on the side to bond with the photovoltaic laminate. The width of the notch of the first groove 118 can be 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, etc.

[0055] The distance between the third bending plate 109 and the side wall of the photovoltaic laminate 2 can be 0mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, etc. When the distance between the third bending plate 109 and the side wall of the photovoltaic laminate 2 is greater than 0, the adhesive can overflow between the third bending plate 109 and the side wall of the photovoltaic laminate 2, thereby ensuring the connection performance between the photovoltaic module steel frame 1 and the photovoltaic laminate 2, and under the sealing effect of the adhesive, the erosion of water vapor can be avoided. The setting of the third bending plate 109 also prevents the sharp edge of the baffle 103 from damaging the photovoltaic laminate during framing.

[0056] The photovoltaic module steel frame 1 also has a side adhesive groove 113 for accommodating the adhesive 7, and the side adhesive groove 113 is located between the baffle 103 and the first horizontal plate 102. The cross-sectional shape of the side adhesive groove 113 can be rectangular. The side adhesive groove 113 is located on the first side of the side plate 101. Fig.10 The side adhesive groove 113 is used to accommodate the adhesive 7 on the side, so as to ensure that the adhesive 7 between the side wall of the photovoltaic laminate 2 and the side plate 101 has a certain adhesive thickness, and the adhesive thickness at this location is related to the width of the side adhesive groove 113. The wider the width of the side adhesive groove 113, the greater the adhesive thickness at this location, and the adhesive thickness at this location is at least 2 mm. When the cross section of the side adhesive groove 113 is rectangular, the structure is simple, which is conducive to the bending of the steel plate.

[0057] The end of the first horizontal plate 102 facing away from the side plate 101 is connected to the first bending plate 104 , and the end of the first bending plate 104 away from the first horizontal plate 102 is higher than the first horizontal plate 102 . The first bending plate 104 , the first horizontal plate 102 and the side plate 101 form a glue accumulation groove 114 for accommodating the adhesive 7 .

[0058] When the photovoltaic module steel frame 1 is bonded to the photovoltaic laminate 2, adhesive 7 will be applied to the photovoltaic module steel frame 1 first, and then the photovoltaic laminate 2 will move relative to the photovoltaic module steel frame 1 in the horizontal direction to complete the bonding of the photovoltaic laminate 2 and the photovoltaic module steel frame 1. During the bonding process, part of the adhesive 7 on the top of the adhesive accumulation groove 114 will overflow to the side adhesive groove 113. Due to the setting of the first bending plate 104, the photovoltaic laminate 2 is located above the first bending plate 104 during the bonding process, thereby ensuring that the adhesive 7 on the adhesive accumulation groove 114 that is lower than or flush with the first bending plate 104 will not overflow too much to the side adhesive groove 113, nor will it overflow too much to the top and inside of the second horizontal plate 111, thereby ensuring that the adhesive 7 contained in the adhesive accumulation groove 114 meets a certain bonding thickness, thereby ensuring the bonding strength between the photovoltaic module steel frame 1 and the photovoltaic laminate 2.

[0059] The depth of the adhesive accumulation groove 114 is greater than or equal to 1 mm and less than or equal to 1.5 mm, and / or the width of the notch of the adhesive accumulation groove 114 is greater than or equal to 10 mm and less than or equal to 12 mm.

[0060] Specifically, the depth H1 of the glue accumulation groove 114 can be 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, etc. The width W5 of the notch of the glue accumulation groove 114 can be 10mm, 10.5mm, 10.8mm, 11mm, 11.5mm, 12mm, etc. By setting the depth of the glue accumulation groove 114 and the width of the notch within the above range, it can be ensured that the adhesive 7 contained in the glue accumulation groove 114 meets a certain bonding thickness and width, thereby ensuring the bonding strength between the photovoltaic module steel frame 1 and the photovoltaic laminate 2. The bonding thickness of the adhesive 7 contained in the glue accumulation groove 114 is at least 1 mm, and the bonding width of the adhesive 7 contained in the glue accumulation groove 114 is at least 10 mm.

[0061] The first bending plate 104 can be tilted, and the angle between the first horizontal plate 102 and the first bending plate 104 is referred to as Figure 6 The angle α shown in the figure, the angle α between the first horizontal plate 102 and the first bending plate 104 can be 110°-130°, such as 110°, 115°, 120°, 122°, 115°, 130°, etc. When the first bending plate 104 is tilted, during the bending process of the steel plate, the bending angle when the first bending plate 104 is bent from the first horizontal plate 102 is greater than 90 degrees, which is beneficial to the bending of the steel plate and avoids cracks at the bending point of the first horizontal plate 102 and the first bending plate 104 after bending. The angle between the first horizontal plate 102 of the connecting plate and the first bending plate 104 is preferably 120°. The first bending plate 104 is specifically connected to the first horizontal plate 102 by an arc chamfer. The adhesive 7 contained in the adhesive accumulation groove 114 is used to achieve bonding between the backlight surface of the photovoltaic laminate and the first horizontal plate 102.

[0062] Reference Figures 1 to 3 , Figures 6 to 9 The photovoltaic module steel frame provided by the embodiment of the utility model also includes a support plate 105, one end of the support plate 105 is connected to the first bending plate 104, and the other end of the support plate 105 is connected to the bottom plate 106. The first horizontal plate 102, the support plate 105 and the bottom plate 106 form a cavity 115 with a side opening 116, and the side opening 116 is arranged opposite to the support plate 105.

[0063] Reference Figures 1 to 3 , Figures 6 to 9 , the first bending plate 104 is specifically connected to the support plate 105 through the second horizontal plate 111. In some embodiments, referring to Figures 1 to 9, the photovoltaic module steel frame 1 includes a second horizontal plate 111. When the photovoltaic module steel frame including the first bending plate 104 and the second horizontal plate 111 is bent, after the first bending plate 104 is bent, the second horizontal plate 111 is bent first, and then the support plate 105 is bent. Fig.10 After the photovoltaic module steel frame including the first bending plate 104 and the second horizontal plate 111 is bonded to the photovoltaic laminate 2, the first horizontal plate 102 is bonded to the backlight surface of the photovoltaic laminate 2 by the adhesive 7, and the second horizontal plate 111 plays a role in supporting the photovoltaic laminate 2. There may be adhesive 7 between the second horizontal plate 111 and the photovoltaic laminate 2. In the embodiment of the utility model, the second horizontal plate 111 is provided to facilitate the bending and forming of the photovoltaic module steel frame. In addition, the second horizontal plate 111 also plays a role in supporting the photovoltaic laminate, thereby reducing the contact stress of the photovoltaic module steel frame on the photovoltaic laminate.

[0064] One end of the first horizontal plate 102 facing away from the side plate 101 is connected to the first bending plate 104, and the photovoltaic module steel frame 1 also includes a support plate 105, one end of the support plate 105 is connected to the first bending plate 104 through the second horizontal plate 111, and the other end of the support plate 105 is connected to the bottom plate 106; when the photovoltaic module steel frame 1 is bonded to the photovoltaic laminate 2, the distance between the top surface of the second horizontal plate 111 facing away from the bottom plate 106 and the backlight surface of the photovoltaic laminate 2 is greater than or equal to 0 mm and less than or equal to 0.3 mm, and / or the width of the top surface of the second horizontal plate 111 is greater than or equal to 0.5 mm and less than or equal to 2 mm.

[0065] Specifically, the distance between the top surface of the second horizontal plate 111 and the backlight surface of the photovoltaic laminate 2 can be 0mm, 0.15mm, 0.2mm, 0.22mm, 0.25mm, 0.3mm, etc. The angle between the second horizontal plate 111 and the first bending plate 104 can be 110°-130°, such as 110°, 115°, 120°, 122°, 115°, 130°, etc. The width W4 of the top surface of the second horizontal plate 111 can be 0.5mm, 0.8mm, 1mm, 1.2mm, 1.5mm, 2mm, etc., and the width W4 of the top surface of the second horizontal plate 111 is preferably 1mm. In the embodiment of the utility model, when the distance between the top surface of the second horizontal plate 111 and the backlight surface of the photovoltaic laminate 2 is greater than 0mm, there is a certain adhesive between the top surface of the second horizontal plate 111 and the backlight surface of the photovoltaic laminate 2, ensuring the adhesive effect.

[0066] Specifically, refer to Figures 1 to 9In some embodiments, the photovoltaic module steel frame includes a support plate 105, a bottom plate 106 and a cavity 115. The support plate 105 is arranged parallel to the side plate 101, and the bottom plate 106 is arranged parallel to the first horizontal plate 102. Compared with the closed cavity arrangement in the existing frame, the cavity 115 with the side opening 116 can reduce the material cost while ensuring the bearing capacity.

[0067] Reference Figure 1 , Figures 3 to 9 The photovoltaic module steel frame 1 is a first frame with a mounting hole 1061, and the first frame is used to be set on the first side of the photovoltaic laminate. The mounting hole 1061 is used to connect the threaded fastener 3, and the threaded fastener 3 is penetrated by a gasket 4; the support plate 105 is connected to the bottom plate 106 through the bending portion 108, and the bending portion 108 and the bottom plate 106 form an avoidance cavity 117, and the avoidance cavity 117 is connected to the cavity 115, and the avoidance cavity 117 is used for placing the gasket 4; or, along the direction from the first horizontal plate 102 to the bottom plate 106, the distance between the side plate 101 and the support plate 105 gradually increases, and the cavity 115 is away from the bottom of the first horizontal plate 102 for placing the gasket.

[0068] Specifically, in some embodiments, referring to Figure 1 , Figure 6 and Figure 7 , the support plate 105 is connected to the bottom plate 106 through the bent portion 108. In some embodiments, referring to Figure 8 and Fig. 9 , along the direction from the first horizontal plate 102 to the bottom plate 106, the distance between the side plate 101 and the support plate 105 gradually increases. The first side edge can be the long side of the photovoltaic laminate. In the first frame, the mounting hole 1061 is opened on the bottom plate 106. The threaded fastener 3 can be a bolt, and the threaded fastener 3 cooperates with the nut 6 to mount and fasten the photovoltaic module steel frame 1 on the photovoltaic bracket 5. Two gaskets 4 can be provided, and one of the gaskets 4 is located between the bottom plate 106 and the head of the bolt.

[0069] The bolt is preferably a T-bolt. In some embodiments, Figure 3 , Figure 6 and Figure 7 When T-bolts are used, the bottom of the support plate 105 is also used to limit the head of the T-bolt to prevent the T-bolt from rotating during the process of tightening the nut, which facilitates the tightening of the T-bolt and improves the installation efficiency.

[0070] In some embodiments, reference Figure 1 , Figures 6 to 9 , along the width direction of the photovoltaic module steel frame 1, the width W2 of the bottom plate 106 is greater than the diameter of the circular gasket 4. The width direction of the photovoltaic module steel frame 1 can be referred to Figure 8In some embodiments, referring to Figure 1 , Figure 6 and Figure 7 Along the width direction of the photovoltaic module steel frame 1 , a distance W3 between the end of the bottom plate 106 away from the support plate 105 and the support plate 105 is smaller than a width W2 of the bottom plate 106 . Figure 7 and Figure 6 The difference is that Figure 7 The end of the middle bottom plate 106 away from the support plate 105 is also connected to a fourth bending plate 112. The fourth bending plate 112 is used to limit the angle code. After a photovoltaic module steel frame including the fourth bending plate 112 is bonded to the photovoltaic laminate 2, the photovoltaic module steel frame needs to be connected to other photovoltaic module steel frames through the angle code. After the angle code is installed, the angle code is limited between the fourth bending plate 112 and the support plate 105.

[0071] Reference Figure 3 The bending portion 108 may include a horizontal section 1081 and a vertical section 1082 connected to the horizontal section 1081. In this case, the cross section of the bending portion 108 is inverted L-shaped. The bending portion 108 may also be a plate-like structure arranged obliquely, or a plate-like structure with an arc-shaped cross section.

[0072] The direction from the first horizontal plate 102 to the bottom plate 106 can be referred to Figure 8 The direction indicated by the arrow A. Figure 8 , along the direction from the first horizontal plate 102 to the bottom plate 106 , the distance W1 between the side plate 101 and the support plate 105 gradually increases.

[0073] The current steel frame cannot be installed using conventional gaskets and requires special gaskets. In the embodiment of the utility model, by gradually increasing the distance between the avoidance cavity 117 or the side panel 101 and the support plate 105, space is provided for the placement of conventional gaskets, so that the photovoltaic module steel frame can be adapted to a variety of types of gaskets during installation; in addition, the gradually increasing distance between the bending portion 108 or the side panel 101 and the support plate 105 also increases the area of ​​the bottom plate 106, thereby improving the rigidity of the photovoltaic module steel frame.

[0074] Reference Figure 2 The photovoltaic module steel frame 1 is a second frame for being arranged on the second side of the photovoltaic laminate 2. The second side is perpendicular to the first side. Along the direction from the first horizontal plate 102 to the bottom plate 106, the distance between the side plate 101 and the support plate 105 remains unchanged.

[0075] Specifically, in some embodiments, referring to Figure 2, along the direction from the first horizontal plate 102 to the bottom plate 106, the distance between the side plate 101 and the support plate 105 remains unchanged, and no bending portion 108 is provided. The second side edge may be a short side of the photovoltaic laminate 2, and no mounting hole is provided on the second frame, which is also the frame shown in the second embodiment. Figure 2 The photovoltaic module steel frame 1 shown in Figure 1 The photovoltaic module steel frame 1 shown in FIG. is different in that due to Figure 2 The photovoltaic module steel frame 1 shown in FIG. 1 does not need to be connected by threaded fasteners, so Figure 2 The photovoltaic module steel frame 1 shown in FIG. 1 is not provided with a bending portion 108 . Figure 2 The width of the bottom plate 106 in the photovoltaic module steel frame 1 shown in FIG. Figure 1 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 The width of the bottom plate 106 in the photovoltaic module steel frame 1 is shown in FIG. In this way, there is no need to set the bending portion 108 or to set the distance between the side plate 101 and the support plate 105 to gradually increase, thereby reducing the material cost.

[0076] Reference Figures 1 to 3 , Fig. 9 The photovoltaic module steel frame provided by the embodiment of the utility model also includes a second bending plate 107 connected to the first horizontal plate 102, the second bending plate 107 extends away from the baffle 103, and the end of the second bending plate 107 away from the first horizontal plate 102 is connected to the side plate 101.

[0077] Specifically, in some embodiments, referring to Figure 1 , Figure 2 and Fig. 9 , the photovoltaic module steel frame is provided with a second bending plate 107. The second bending plate 107 extends toward the bottom plate 106. The cavity 115 is used to install the angle code, and the second bending plate 107 is used to limit the angle code. The second bending plate 107 is arranged close to the side plate 101. After a photovoltaic module steel frame including the second bending plate 107 and the first horizontal plate 102 is bonded to the photovoltaic laminate 2, the photovoltaic module steel frame needs to be connected to other photovoltaic module steel frames through the angle code. After the angle code is installed, the angle code is limited between the second bending plate 107 and the support plate 105.

[0078] Along the width direction of the photovoltaic module steel frame 1, the distance between the second bending plate 107 and the side plate 101 can be 0mm-0.5mm, for example, 0mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, etc. When the distance between the second bending plate 107 and the side plate 101 is 0mm, the second bending plate 107 is in contact with the side plate 101. The second bending plate 107 is specifically used for limiting the upper end of the angle code. In the embodiment of the utility model, the second bending plate 107 can be provided to limit the angle code when the photovoltaic module steel frame is equipped with the angle code.

[0079] Reference Figures 1 to 3 , Fig. 9 , the second bending plate 107 is connected to the side plate 101 through the connecting plate 110, and the second bending plate 107, the connecting plate 110 and the side plate 101 form a second groove 119, and the second groove 119 is connected to the glue accumulation groove 114. Specifically, the cross-section of the connecting plate 110 can be in the shape of an arc. In the embodiment of the utility model, due to the setting of the second groove 119, there is a certain gap between the side plate 101 and the second bending plate 107, and then the connecting plate 110 has a certain width, which is conducive to the second bending plate 107 to bend toward the side plate 101 through the connecting plate 110, avoiding cracks at the bending part of the connecting plate 110, and can also play a role in containing glue, increasing the bonding surface area between the frame and the laminate. The gap between the side plate 101 and the second bending plate 107 is at least 0.5mm. The combination of the first groove 118 , the second groove 119 , the side adhesive holding groove 113 and the adhesive accumulation groove 114 can hold adhesive and enhance the bonding reliability between the frame and the laminate.

[0080] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0081] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, which all fall within the protection of the utility model.

Claims

1. A photovoltaic module steel frame, characterized in that: It comprises a side plate, a first horizontal plate fixed to a first side of the side plate, and a baffle. When the photovoltaic module steel frame is bonded to the photovoltaic laminate by adhesive, the surface of the baffle facing away from the first horizontal plate is lower than or flush with the light-facing surface of the photovoltaic laminate. The end of the first horizontal plate facing away from the side plate is connected to a first bending plate, the end of the first bending plate away from the first horizontal plate is higher than the first horizontal plate, and the first bending plate, the first horizontal plate and the side plate form a glue accumulation groove for accommodating the adhesive.

2. The photovoltaic module steel frame according to claim 1, characterized in that: The depth of the glue accumulation groove is greater than or equal to 1 mm and less than or equal to 1.5 mm, and / or the width of the notch of the glue accumulation groove is greater than or equal to 10 mm and less than or equal to 12 mm.

3. The photovoltaic module steel frame according to claim 1, characterized in that: The first bending plate is tilted, and the angle between the first horizontal plate and the first bending plate is 110°-130°.

4. The photovoltaic module steel frame according to claim 1, characterized in that: It also includes a support plate, one end of which is connected to the first bending plate, and the other end of which is connected to the bottom plate, and the first horizontal plate, the support plate and the bottom plate form a cavity with a side opening, and the side opening is arranged opposite to the support plate.

5. The photovoltaic module steel frame according to claim 4, characterized in that: The photovoltaic module steel frame is a first frame with a mounting hole, the first frame is used to be arranged on a first side of the photovoltaic laminate, the mounting hole is used to connect a threaded fastener, and a gasket is inserted on the threaded fastener; The support plate is connected to the bottom plate via a bent portion, the bent portion and the bottom plate enclose a avoidance cavity, the avoidance cavity is connected to the cavity, and the avoidance cavity is used for placing the gasket; Alternatively, along the direction from the first horizontal plate to the bottom plate, the distance between the side plate and the support plate gradually increases, and the bottom of the cavity is used for placing the gasket.

6. The photovoltaic module steel frame according to claim 4, characterized in that: The photovoltaic assembly steel frame is a second frame for being arranged on the second side of the photovoltaic laminate, the second side is perpendicular to the first side, and the side plate is perpendicular to the first side along the direction from the first horizontal plate to the bottom plate. The distance between the support plates remains unchanged.

7. The photovoltaic module steel frame according to claim 4, characterized in that: The first bending plate is connected to the supporting plate through a second horizontal plate.

8. The photovoltaic module steel frame according to claim 1, characterized in that: It also includes a second bent plate connected to the first horizontal plate, the second bent plate extends away from the baffle, and one end of the second bent plate away from the first horizontal plate is connected to the side plate.

9. The photovoltaic module steel frame according to claim 8, characterized in that: The second bending plate is connected to the side plate through a connecting plate, and the second bending plate, the connecting plate and the side plate form a second groove, and the second groove is communicated with the glue accumulation groove.

10. The photovoltaic module steel frame according to claim 1, characterized in that: The photovoltaic module steel frame also has a side adhesive groove for accommodating the adhesive, and the side adhesive groove is located between the baffle and the first horizontal plate.

11. The photovoltaic module steel frame according to any one of claims 1 to 7, characterized in that: A third bending plate is connected to one end of the baffle away from the side plate. The third bending plate extends toward the first horizontal plate. The third bending plate, the baffle and the side plate form a first groove.

12. The photovoltaic module steel frame according to claim 11, characterized in that: The distance between the third bending plate and the side wall of the photovoltaic laminate is greater than or equal to 0 mm and less than or equal to 0.5 mm, and / or the width of the notch of the first groove is greater than or equal to 1 mm and less than or equal to 1.5 mm, and / or the depth of the first groove is greater than or equal to 0.5 mm and less than or equal to 1.5 mm.

13. The photovoltaic module steel frame according to any one of claims 1 to 7, characterized in that: The photovoltaic module steel frame is formed by bending a steel plate, and the thickness of the steel plate is 0.8mm-1mm.

14. The photovoltaic module steel frame according to claim 4, characterized in that: One end of the bottom plate away from the support plate is connected with a fourth bending plate.

15. A photovoltaic module, characterized in that: The invention comprises a photovoltaic laminate and at least one photovoltaic module steel frame according to any one of claims 1 to 14.

16. The photovoltaic module according to claim 15, characterized in that: The photovoltaic module steel frame includes a side panel, a first horizontal panel fixed to the first side of the side panel, and a baffle. When the photovoltaic module steel frame is bonded to the photovoltaic laminate, the height difference between the surface of the baffle facing away from the first horizontal panel and the light-facing surface of the photovoltaic laminate is less than or equal to 0.5 mm.

17. The photovoltaic module according to claim 16, characterized in that: The first horizontal plate is connected to a first bent plate at one end away from the side plate, and the photovoltaic module steel frame further includes a support plate, one end of the support plate is connected to the first bent plate via a second horizontal plate, and the other end of the support plate is connected to a bottom plate; When the photovoltaic module steel frame is bonded to the photovoltaic laminate, the distance between the top surface of the second horizontal plate facing away from the bottom plate and the backlight surface of the photovoltaic laminate is greater than or equal to 0 mm and less than or equal to 0.3 mm, and / or the width of the top surface of the second horizontal plate is greater than or equal to 0.5 mm and less than or equal to 2 mm.

18. The photovoltaic module according to claim 15, characterized in that: The photovoltaic component steel frame and the photovoltaic laminate are bonded to each other by adhesive.

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