Photovoltaic frame and connecting corner connector thereof
Technical Field
The utility model relates to the technical field of solar frames, in particular to a photovoltaic frame and a connecting corner bracket thereof.
Background
In the prior art, in order to realize packaging of the photovoltaic laminate, an aluminum frame is generally used. Such aluminum frames typically include four aluminum frame bars (which typically include two long frame bars disposed opposite one another and two short frame bars disposed opposite one another) that are joined end to end in sequence, and corner connectors (also referred to as corner tabs) that connect the corners of adjacent two aluminum frame bars.
In order to reduce the cost of raw materials, people gradually adopt steel to replace aluminum materials to prepare steel frame strips and corner connecting pieces made of matched steel materials, and the traditional aluminum corner connector and an open steel frame are poor in matching degree, meanwhile, design innovation of the section of the frame is limited, the problem of high cost exists, along with gradual popularization of the steel frame, people in the industry can begin to dislike, and the aluminum corner connector is thoroughly replaced by the steel corner connector on the open steel frame.
The matched steel frame corner connector for the photovoltaic module provided by Chinese patent CN211046854U has the following defects: firstly, the steel corner is manufactured through a plurality of processes such as bending forming, segmentation, perforating and surface treatment, and the connection of the corners of the long frame strip and the short frame strip which are made of adjacent steel is realized through the locking and embedding of round holes, the round holes are required to be accurately arranged in the perforating process, the shape and the size of the round holes are required to be accurately controlled, the perforating position of the round holes on the steel corner is required to be accurately controlled, if the perforating precision of the round holes is not enough, the defect that the locking and embedding are not in place to lead to the unstable connection of the corners easily occurs, or the defect that the glass front plate of the photovoltaic laminate is damaged due to the locking and embedding are easily occurred, and the packaging effect of the photovoltaic laminate is further affected. Secondly, the steel corner connector adopts the convex blocks and the grooves to connect the bending parts of the left and right connecting pieces together, and the clamping structure is easy to loose after long-time use, so that the defect of unstable connection is easy to occur at the bending parts, and the connection stability of the steel corner connector to the corners of the adjacent long steel frame strips and short steel frame strips is further affected.
Disclosure of Invention
The utility model aims to overcome the defects, provide a photovoltaic frame and a connecting angle code thereof, solve the problem of deformation caused by the fact that the existing steel frame is assembled to open a steel frame cavity, and effectively improve the stability of the connection between the angle code and the frame.
The purpose of the utility model is realized in the following way:
the connecting corner connector of the photovoltaic frame comprises a corner connector, wherein the corner connector comprises a first corner connector arm and a second corner connector arm which are symmetrical, the first corner connector arm and the second corner connector arm are vertically connected and form corners at the connecting positions, the first corner connector arm is inserted into one steel frame, and the second corner connector arm is inserted into the other steel frame; an L-shaped connecting plate is arranged at the connecting corner of the first angle arm and the second angle arm, one side of the L-shaped connecting plate is connected with the outer wall of the first angle arm, the other side of the L-shaped connecting plate is connected with the outer wall of the second angle arm, and a profiling cavity is formed between the L-shaped connecting plate and the first angle arm and the second angle arm; at least two cup punching holes are arranged on at least one side wall of the first corner brace arm and at least one side wall of the second corner brace arm at intervals.
Further, the first angle arm comprises a first punching plate, a first connecting plate and a first supporting plate which are sequentially and vertically connected, the first supporting plate is also connected with a first side plate, the first supporting plate and the first side plate are positioned on the same plane, and the outer edges of the first connecting plate, the first supporting plate and the first side plate are positioned on the same axis; the structure of the second corner brace arm is symmetrical with the first corner brace arm and comprises a second punching plate, a second connecting plate, a second support plate and a second side plate which correspond to the second corner brace arm.
Further, the first punching plate is connected with the second punching plate in a clamping mode, a clamping groove is formed in the first punching plate, and a matched clamping part is arranged at a corresponding position of the second punching plate.
Further, the other end of the first punching plate and the second punching plate opposite to the connecting end of the first punching plate and the second punching plate is provided with an outwards extending bending part.
Further, the first side plate is clamped with the second side plate.
Further, the other end of the connecting end of the first side plate and the second side plate opposite to each other is provided with an outwards extending bending part.
The photovoltaic frame is connected with the connecting corner connector of the photovoltaic frame in a matching way and comprises a steel frame body, wherein the steel frame body comprises a first installation cavity and a second installation cavity arranged below the first installation cavity, the first installation cavity is used for installing a photovoltaic laminated piece, the second installation cavity is used for installing the corner connector, and the corner connector is inserted into the second installation cavity; and the inner surface of the cup punching hole of the opposite angle code on the steel frame body is provided with a corresponding clearance fit cup.
Further, the first installation cavity is a cavity with one side opening, which is formed by a first transverse section, a first vertical section and a second transverse section which are connected in sequence, the second installation cavity is a cavity with one side opening, which is formed by a second transverse section, a second vertical section, a third transverse section and a third vertical section which are connected in sequence, and the opening direction of the second installation cavity is opposite to that of the first installation cavity; the first transverse section is provided with a section of concave glue overflow groove, and the second transverse section is provided with a fixing groove protruding towards the second installation cavity.
Further, the second vertical section is respectively provided with a first reinforcing groove and a second reinforcing groove which are bent outwards, so that the strength and the compression resistance of the steel frame body are enhanced.
Compared with the prior art, the utility model has the beneficial effects that:
the profile body forms an opening cavity similar to the section of an aluminum frame when the steel frame is rolled and formed, and the cavity is used for framing the steel frame in a mode of performing clearance fit with a side opening of the corner brace and pressing points, so that the problem that a steel frame cavity is deformed due to the fact that the steel frame is enlarged in assembly is solved, meanwhile, a profiling cavity is designed on the other side of the steel corner brace, the steel corner brace is prevented from loosening, the stability of connection between the corner brace and the frame is effectively improved, the problem that the corner brace is complex in stamping is solved, production efficiency is improved, and the solar frame assembly cost is reduced.
Drawings
Fig. 1 is a schematic view of the assembly of the present utility model.
Fig. 2 is another schematic assembly view of the present utility model.
Fig. 3 is another schematic assembly view of the present utility model.
Fig. 4 is a schematic cross-sectional view of the steel rim of the present utility model.
Fig. 5 is a schematic view of the structure of the corner connector of the present utility model.
Fig. 6 is a front view of a corner key of the present utility model.
Wherein:
the steel frame comprises a steel frame body 1, a first mounting cavity 11, a second mounting cavity 12, a glue overflow groove 13, a fixing groove 14, a first reinforcing groove 15, a second reinforcing groove 16, a corner connector 2, a first punching plate 21, a first connecting plate 22, a first support plate 23, a first side plate 24, a second punching plate 25, a second connecting plate 26, a second support plate 27, a second side plate 28 and an L-shaped connecting plate 29.
Detailed Description
In order to better understand the technical solution of the present utility model, the following detailed description will be made with reference to the accompanying drawings. It should be understood that the following embodiments are not intended to limit the embodiments of the present utility model, but are merely examples of embodiments that may be employed by the present utility model. It should be noted that, the description herein of the positional relationship of the components, such as the component a being located above the component B, is based on the description of the relative positions of the components in the drawings, and is not intended to limit the actual positional relationship of the components.
Example 1:
referring to fig. 1-6, fig. 1 depicts a schematic structural diagram of a photovoltaic frame and a connecting corner bracket thereof according to the present utility model. As shown in the figure, the photovoltaic frame and the connecting corner connector thereof of the utility model comprise a steel frame body 1 and a corner connector 2, wherein the steel frame body 1 comprises a first installation cavity 11 and a second installation cavity 12 arranged below the first installation cavity 11, the first installation cavity 11 is used for installing a photovoltaic laminated piece, the second installation cavity 12 is used for installing the corner connector 2, and the corner connector 2 is inserted into the second installation cavity 12.
The first installation cavity 11 is a cavity with one side opening, which is formed by a first transverse section, a first vertical section and a second transverse section which are connected in sequence, the second installation cavity 12 is a cavity with one side opening, which is formed by a second transverse section, a second vertical section, a third transverse section and a third vertical section which are connected in sequence, and the opening direction of the second installation cavity 12 is opposite to that of the first installation cavity 11; the first transverse section is provided with a section of concave glue overflow groove 13, and the second transverse section is provided with a fixing groove 14 protruding downwards from the second mounting cavity 12 and used for pressing and fixing the corner bracket 2; the second vertical section is respectively provided with a first reinforcing groove 15 and a second reinforcing groove 16 which are bent outwards, so that the strength and the compression resistance of the steel frame body 1 are enhanced.
The angle code 2 comprises a first angle code arm and a second angle code arm which are symmetrical, wherein the first angle code arm and the second angle code arm are vertically connected and form a corner at the connecting position, the first angle code arm is inserted into one steel frame, and the second angle code arm is inserted into the other steel frame.
The first angle arm comprises a first punching plate 21, a first connecting plate 22 and a first supporting plate 23 which are sequentially and vertically connected, the first supporting plate 23 is also connected with a first side plate 24, the first supporting plate 23 and the first side plate 24 are positioned on the same plane, and the outer edges of the first connecting plate 22, the first supporting plate 23 and the first side plate 24 are positioned on the same axis; the second corner brace arm is symmetrical to the first corner brace arm in structure and comprises a second punching plate 25, a second connecting plate 26, a second support plate 27 and a second side plate 28 which are corresponding to each other; the first punching plate 21 is clamped with the second punching plate 25, a clamping groove is formed in the first punching plate 21, a matched clamping part is arranged at a corresponding position of the second punching plate 25, a bending part extending outwards is arranged at the other end of the first punching plate 21 and the second punching plate 25 opposite to the connecting end of the first punching plate 21 and the second punching plate 25, and the end part of the bending part does not exceed the outer end of the first connecting plate 22 or the second connecting plate 26; the first side plate 24 and the second side plate 28 are also clamped, and the other end of the connecting end of the first side plate 24 and the second side plate 28 opposite to each other is provided with an outwardly extending bending part.
At least two cup punching holes are respectively arranged on the first punching plate 21 and the second punching plate 25 at intervals, and corresponding clearance fit cup punching holes are arranged on the inner surfaces of the cup punching holes of the opposite corner brackets 2 on the steel frame body 1.
The connecting corner of first angle sign indicating number arm and second angle sign indicating number arm is equipped with an L type connecting plate 29, the outer wall of first angle sign indicating number arm is connected on one side of L type connecting plate 29, and the outer wall of second angle sign indicating number arm is connected to the another side, and forms the profile modeling chamber with between first angle sign indicating number arm and the second angle sign indicating number arm, inserts steel frame body 1 back at angle sign indicating number 2, and L type connecting plate 29 laminating steel frame body 1's outer wall gives the clamp force, prevents that the steel angle sign indicating number from becoming flexible, effectively promotes the stability of angle sign indicating number and frame hookup.
Working principle:
the corner connector is subjected to innovative design in cooperation, glue overflow can be effectively reduced through the design of the profiling cavity, meanwhile, the corner connector is prevented from shaking, and the stability of corner connector connection is improved. The steel corner connector solves the problem of steel frame assembly in a self-riveting assembly mode of the steel frame punching cup, an opening cavity is formed during cold bending forming of the steel frame, if the cavity is deformed by enlarging a frame cavity when the steel frame is assembled in an interference fit or pressing point mode of the corner connector, a large C-face level difference is generated, and the assembly effect is affected.
And (3) assembling the short frame and the two cups (pressing two points) by using the corner connector, punching the two cups by using the long frame, and pushing the short-side corner connector into the long frame after punching the cups, so that assembly is completed. The steel angle sign indicating number side has the trompil of two sizes, the aperture is preceding, the macropore is after, steel frame inner chamber has the pressure point towards cup of two sizes, the great towards cup of size is close to the tip, when steel angle sign indicating number pushes open steel frame die cavity, angle sign indicating number side aperture size is less than big towards cup size, avoid the angle sign indicating number to block here and die for angle sign indicating number gets into frame die cavity smoothly, two holes respectively with towards cup one-to-one, towards the downthehole of cup ingress angle sign indicating number, with the hole from riveting angle sign indicating number, the hole of steel angle sign indicating number just is locked by the towards cup of steel frame, angle sign indicating number can't pull out any more, thereby realize long, the stable hookup of minor face frame. The punching cup of the steel frame is not subjected to axial force of the angle code, so that a cavity of the steel frame cannot be expanded, and the punching cup of the steel frame is subjected to radial force to lock the position of the angle code in the steel frame.
The foregoing is merely a specific application example of the present utility model, and the protection scope of the present utility model is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the utility model.