Packaging corner protector for steel frame photovoltaic module product

Abstract

The invention relates to a packaging corner protector for a steel frame photovoltaic module product, which comprises a folding surface I, a folding surface II and a folding surface III which are integrally formed, the three folding surfaces are inwards folded to form an acute included angle through a serrated knife line I and a serrated knife line II, and the packaging corner protector further comprises an elastic pull piece and a side wall fastening mechanism, the elastic pulling piece is arranged between the first folding face and the third folding face, the side wall fastening mechanism comprises an arc-shaped paperboard, an outward-floating paperboard and a side fixing paperboard, the arc-shaped paperboard is pulled through the elastic pulling piece to increase the radian and is attached to the surface of the groove of the steel frame, and the outward-floating paperboard abuts against the surface of the groove to increase friction force. The side fixing paperboards are extruded by the arc-shaped paperboards to deform and are filled between the arc-shaped paperboards and the grooves to be further fastened. The elastic pull pieces form protection pieces for the corners of the packaging corner protector after being installed, meanwhile, the states of the arc-shaped paperboards, the outward-floating paperboards and the side fixing paperboards can be kept through the traction effect of the elastic pull pieces, and the fastening effect of the packaging corner protector on the steel frame is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic module packaging, and specifically to a packaging corner protector for steel-frame photovoltaic modules. Background Art

[0002] A steel-frame photovoltaic module is a photovoltaic product encapsulated by materials such as a steel frame, solar cells, glass, and a backsheet. Among them, the steel frame, as an important component, mainly plays the roles of enhancing the strength of the module, protecting the photovoltaic module, and facilitating transportation and installation. The steel frame has high load-bearing capacity and corrosion resistance characteristics, and can meet the requirements of large-size or extra-large-size modules, and is a widely used module structure form in the photovoltaic industry.

[0003] The packaging corner protector for the steel frame is a packaging protection part specifically designed for steel-frame photovoltaic modules. It is usually made of materials such as cardboard, has multiple integrally formed folding surfaces, and can be folded into an acute angle through a specific tooth knife line design to adapt to the right-angle structure of the steel frame. Through designs such as elastic pulling parts and side wall fastening mechanisms on it, the packaging corner protector can be closely attached to the steel frame, effectively preventing damage caused by collision or friction during transportation and handling, and playing the role of protecting the photovoltaic module and improving transportation safety.

[0004] Currently, the packaging corner protector for the steel frame of photovoltaic modules still has the following disadvantages when in use. For example, in order to improve the protection effect, plastic corner protectors are used, but plastic corner protectors are costly, expensive in price and not environmentally friendly. If paper corner protectors are selected for cost reasons, the protection effect is average. Especially at the corners of the corner protector, which are the points of geometric shape mutation, when subjected to external force impact, stress is likely to concentrate here, resulting in material fatigue or rupture, thus causing damage to the packaging corner protector and losing the protection effect.

[0005] Therefore, we propose a packaging corner protector for steel-frame photovoltaic modules. Summary of the Invention

[0006] The purpose of the present invention is to provide a packaging corner protector for steel-frame photovoltaic modules to solve the above deficiencies in the prior art.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A packaging corner protector for steel-frame photovoltaic modules, including integrally formed folding surface one, folding surface two, and folding surface three. Among them, a tooth knife line two is provided between folding surface two and folding surface three, and a tooth knife line one is provided between folding surface one and folding surface two. The included angle between the tooth knife line one and the tooth knife line two is an acute angle. Through the tooth knife line one and the tooth knife line two, folding surface one, folding surface two, and folding surface three are folded inward to form a packaging corner protector, and the included angle between folding surface one and folding surface three of the formed packaging corner protector is an acute angle;

[0008] The packaging corner protector for steel frame photovoltaic module products further includes an elastic pulling member disposed between the first folding surface and the third folding surface, and a side wall fastening mechanism disposed on the elastic pulling member. When the packaging corner protector is installed on the steel frame, the side wall fastening mechanism is attached to the surface of the steel frame groove through the elastic pulling member, and at the same time, the elastic pulling member itself forms a protective member for the corner of the packaging corner protector.

[0009] As a further description of the above technical solution: The side wall fastening mechanism includes an arc-shaped cardboard disposed on the third folding surface. The width of the arc-shaped cardboard is smaller than the width of the third folding surface, and one end of the arc-shaped cardboard is connected to the elastic pulling member. When the packaging corner protector is installed on the steel frame, the elastic pulling member pulls the arc-shaped cardboard to increase the curvature of the arc-shaped cardboard.

[0010] As a further description of the above technical solution: An outward floating cardboard is further disposed on the arc-shaped cardboard. After the packaging corner protector is installed on the steel frame, the end of the outward floating cardboard abuts against the surface of the steel frame groove.

[0011] As a further description of the above technical solution: A side fixing cardboard is further disposed on the third folding surface, and the side fixing cardboard is inclined. The inclined end of the side fixing cardboard overlaps the raised position of the arc-shaped cardboard.

[0012] As a further description of the above technical solution: The hardness of the material of the arc-shaped cardboard is greater than the hardness of the material of the side fixing cardboard.

[0013] As a further description of the above technical solution: A dovetail convex portion fitted in the dovetail clamping groove is disposed at the end of the elastic pulling member away from the arc-shaped cardboard, and the dovetail clamping groove is disposed on the first folding surface.

[0014] As a further description of the above technical solution: Matching card slots are disposed on the first folding surface. When the two first folding surfaces are brought closer to each other through the first tooth cutting line and the second tooth cutting line, the card slots are used to fixedly connect the two first folding surfaces to each other.

[0015] As a further description of the above technical solution: After the packaging corner protector formed by the first folding surface, the second folding surface and the third folding surface is installed on the steel frame, the arc-shaped cardboard abuts against the surface of the steel frame groove.

[0016] As a further description of the above technical solution: A raised position is disposed on the side of the third folding surface close to the arc-shaped cardboard, and the raised position is used to make the initial state of the arc-shaped cardboard arc-shaped.

[0017] The sum of the width of the arc-shaped cardboard and the width of the side fixing cardboard is greater than the width of the third folding surface and the groove

[0018] In the above technical solution, a packaging corner protector for steel frame photovoltaic module products provided by the present invention has the following beneficial effects:

[0019] Strong adaptability and natural fixation: Through the designed folding surface one, folding surface two, folding surface three and tooth cutting lines, the packaging corner protector of the present invention can be easily folded into an acute angle, perfectly adapting to the right-angle structure of the steel frame. After being pressed, the corner protector can be naturally fixed on the steel frame corner without additional fixing devices, improving the installation convenience.

[0020] Multiple fastening mechanisms: The corner protector combines multiple designs such as elastic tension members, arc-shaped cardboard, outward floating cardboard and side fixing cardboard, effectively increasing the contact area and friction force with the steel frame. Under the pulling of the elastic tension member, the arc-shaped cardboard can fit more deeply to the surface of the steel frame groove, while the outward floating cardboard and side fixing cardboard further enhance the fastening effect, preventing the corner protector from falling off during handling.

[0021] Corner protection and structural stability: After installation, the elastic tension member not only serves as a pulling member, but also forms a protective member for the corners of the packaging corner protector, effectively preventing the overall structural failure of the paper corner protector caused by corner damage during transportation. At the same time, its pulling effect maintains the states of the arc-shaped cardboard, outward floating cardboard and side fixing cardboard, enhancing the structural stability of the entire corner protector. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of the packaging corner protector in an unfolded state provided by an embodiment of the present invention;

[0024] Figure 2 It is a schematic structural diagram of the folded corner protector and the steel frame provided by an embodiment of the present invention;

[0025] Figure 3 It is a schematic structural diagram of the side view of the corner protector provided by an embodiment of the present invention;

[0026] Figure 4 It is a schematic structural diagram of the cross-section of the front view of the corner protector provided by an embodiment of the present invention;

[0027] Figure 5 Provided by an embodiment of the present invention Figure 3 The enlarged structural diagram at A in

[0028] Description of the reference numerals:

[0029] 1. First folding surface; 2. First tooth cutter line; 3. Second tooth cutter line; 4. Card slot; 5. Second folding surface; 6. Third folding surface; 7. Elastic tension member; 71. Dovetail convex part; 72. Dovetail clamping groove; 8. Side fixing cardboard; 81. Arc cardboard; 82. Outer floating cardboard; 9. Steel frame; 10. Groove. Specific implementation manner

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Please refer to Figures 1 - 5 , an embodiment of the present invention provides a technical solution: a packaging corner protector for a steel frame photovoltaic module product, including integrally formed first folding surface 1, second folding surface 5 and third folding surface 6. Among them, a second tooth cutter line 3 is provided between the second folding surface 5 and the third folding surface 6, and a first tooth cutter line 2 is provided between the first folding surface 1 and the second folding surface 5. The included angle between the first tooth cutter line 2 and the second tooth cutter line 3 is an acute angle. Through the first tooth cutter line 2 and the second tooth cutter line 3, the first folding surface 1, the second folding surface 5 and the third folding surface 6 are folded inward to form a packaging corner protector. And a mutually cooperating card slot 4 is provided on the first folding surface 1. When the two first folding surfaces 1 approach each other through the first tooth cutter line 2 and the second tooth cutter line 3, the card slot 4 is used to make the two first folding surfaces 1 be clamped and fixed to each other. In this way, when the two first folding surfaces 1 are fixed to each other, the entire first folding surface 1, the second folding surface 5 and the third folding surface 6 form a packaging corner protector for protecting the corner of the steel frame 9, and the included angle between the first folding surface 1 and the third folding surface 6 of the formed packaging corner protector is an acute angle. In this way, when the packaging corner protector is sleeved on the corner of the steel frame 9, since the corner of the steel frame 9 is a right angle, but the packaging corner protector is an acute angle, the corner of the steel frame 9 will squeeze the packaging corner protector, causing the packaging corner protector to gradually change from an acute angle to a right angle under pressure. And since the first folding surface 1, the second folding surface 5 and the third folding surface 6 are made of cardboard material, they have a certain elasticity. After being forced to deform into a right angle by the steel frame 9, they have the state of wanting to return to the original acute angle. And because the packaging corner protector is attached to the steel frame 9 at this time, the force that wants to return to the original acute angle state will squeeze the steel frame 9 to generate friction, so that the packaging corner protector presses tightly against the steel frame 9, enabling the packaging corner protector to be naturally fixed on the corner of the steel frame 9, initially preventing the packaging corner protector from falling off when handling the steel frame 9 photovoltaic module;

[0032] It should be noted here that, please refer to Figure 2 , a groove 10 is provided on the steel frame 9. After the packaging corner protector is installed on the corner of the steel frame 9, due to the existence of the groove 10, the packaging corner protector directly abuts against the outer edge of the steel frame 9, and there is a gap between the groove 10 and the packaging corner protector;

[0033] In order to further prevent the packaging corner guard from falling off the steel frame 9, the packaging corner guard for the photovoltaic module product of the steel frame 9 further includes an elastic pulling member 7 provided between the first folding surface 1 and the third folding surface 6, and a side wall fastening mechanism provided on the elastic pulling member 7. When installing the packaging corner guard on the steel frame 9, the side wall fastening mechanism is made to fit against the surface of the groove 10 of the steel frame 9 through the elastic pulling member 7. At the same time, the elastic pulling member 7 itself forms a protective member for the corner of the packaging corner guard. This elastic pulling member 7 is provided between the first folding surface 1 and the third folding surface 6. When installing the packaging corner guard, since the angle between the first folding surface 1 and the third folding surface 6 is forced to become a right angle, the entire packaging corner guard deforms, so that the first folding surface 1 and the third folding surface 6 move away from each other, thereby pulling the elastic pulling member 7 and making the side wall fastening mechanism fit against the surface of the groove 10 of the steel frame 9. Thus, the fastening property of the installation of the packaging corner guard is further increased through the provided side wall fastening mechanism. And after the complete installation, the elastic pulling member 7 is located at the corner position of the packaging corner guard and abuts against the corner of the steel frame 9, which can prevent the problem that the corner position of the paper packaging corner guard is easily damaged and damages the corner of the steel frame 9. The provided elastic pulling member 7 can be used as a pulling member to pull the side wall fastening mechanism during installation, and can be used as a protective member to protect the corner of the steel frame 9 after installation, having various beneficial effects;

[0034] In an embodiment of the present invention, the side wall fastening mechanism includes an arc-shaped cardboard 81 provided on the third folding surface 6. The width of the arc-shaped cardboard 81 is smaller than the width of the third folding surface 6 and one end of the side is connected to the elastic pulling member 7. When installing the packaging corner guard, the elastic pulling member 7 pulls one end of the arc-shaped cardboard 81. One end of the arc-shaped cardboard 81 is fixed on the third folding surface 6, and the other end connected to the elastic pulling member 7 is slidably provided on the third folding surface 6. In this way, after pulling one end of the arc-shaped cardboard 81 by the elastic pulling member 7, the radian of the arc-shaped cardboard 81 will increase, so that the arc-shaped cardboard 81 can penetrate deeper into the groove 10 on the steel frame 9. Thus, after the packaging corner guard formed by the first folding surface 1, the second folding surface 5 and the third folding surface 6 is installed on the steel frame 9, the arc-shaped cardboard 81 can abut against the surface of the groove 10 of the steel frame 9. At this time, the radian of the arc-shaped cardboard 81 increases and abuts against the surface of the groove 10 of the steel frame 9. At this time, the arc-shaped arc-shaped cardboard 81 can form a buffer between the steel frame 9 and the packaging corner guard;

[0035] An outer floating cardboard 82 is further provided on the arc-shaped cardboard 81. After the packaging corner protector is installed on the steel frame 9, the end of the outer floating cardboard 82 abuts against the surface of the groove 10 of the steel frame 9. When the arc-shaped cardboard 81 is pulled deeper into the groove 10, the outer floating cardboard 82 will also enter the groove 10 and abut against the surface of the groove 10, thereby further providing fixation for the packaging corner protector through the friction force between the outer floating cardboard 82 and the surface of the groove 10 of the steel frame 9. It should be noted here that when the arc-shaped cardboard 81 is not pulled, the installation position of the outer floating cardboard 82 is on the outer surface of the end of the arc-shaped cardboard 81 close to the third folding surface 6. This position can minimize the friction generated during installation when inserting the packaging corner protector onto the corner of the steel frame 9. Only after the corner of the steel frame 9 is about to be inserted into the corner of the packaging corner protector, at this time, the arc-shaped cardboard 81 is pulled by the elastic pulling member 7 to make the outer floating cardboard 82 enter the groove 10. And due to the increase in the radian of the arc-shaped cardboard 81, the outer floating cardboard 82 gradually tilts at this time and abuts against the surface of the groove 10 until the packaging corner protector is completely installed on the steel frame 9. At this time, the outer floating cardboard 82 completely abuts against the surface of the groove 10, and at this time, the packaging corner protector is further fixed on the steel frame 9 through the friction force to prevent it from falling off;

[0036] When the radian of the arc-shaped cardboard 81 becomes larger, a side fixing cardboard 8 is further provided on the third folding surface 6, and the side fixing cardboard 8 is inclined. The inclined end of the side fixing cardboard 8 overlaps on the protruding position of the arc-shaped cardboard 81. In this way, during the process of the increase in the deformation radian of the arc-shaped cardboard 81, it will also abut against the side fixing cardboard 8, causing the inclined side fixing cardboard 8 to gradually return to a position perpendicular to the third folding surface 6. After the third folding surface 6 returns to a state perpendicular to the third folding surface 6, since the sum of the widths of the arc-shaped cardboard 81 and the side fixing cardboard 8 is greater than the widths of the third folding surface 6 and the groove 10, when the arc-shaped cardboard 81 squeezes the side fixing cardboard 8 to make the side fixing cardboard 8 become perpendicular to the third folding surface 6, the side fixing cardboard 8 will be squeezed and deformed and be located between the arc-shaped cardboard 81 and the groove 10 of the steel frame 9, thereby further fastening the packaging corner protector through the friction between the side fixing cardboard 8 and the groove 10 of the steel frame 9 to prevent it from falling off during handling;

[0037] In order to prevent the material of the arc-shaped cardboard 81 itself from deforming when the arc-shaped cardboard 81 abuts against the side fixing cardboard 8, resulting in the side fixing cardboard 8 not deforming, the hardness of the material of the arc-shaped cardboard 81 is greater than the hardness of the material of the side fixing cardboard 8;

[0038] It should also be noted that after the packaging corner protector is completely installed on the steel frame 9, that is, after the corners of the steel frame 9 are completely abutted against the corners of the packaging corner protector, since the elastic tension member 7 is located between the first folding surface 1 and the third folding surface 6, at this time, the elastic tension member 7 will also be squeezed by the corners of the steel frame 9 and will adhere to the first folding surface 1 and the third folding surface 6. And passing through the corner positions of the first folding surface 1, the second folding surface 5 and the third folding surface 6, that is, passing through the corner positions of the packaging corner protector. At this time, the corner of the steel frame 9 abuts against the corner of the packaging corner protector through the second elastic tension belt, so that there is an elastic tension member 7 between the corner of the packaging corner protector and the corner of the steel frame 9. When the corner of the packaging corner protector is damaged, the elastic tension member 7 can still protect the corner of the steel frame 9 to prevent the corner of the steel frame 9 from being damaged. At this time, the elastic tension member 7 is in a fixed state by the steel frame 9, that is, at this time, whether it is the arc-shaped cardboard 81, the outward floating cardboard 82 or the side fixing cardboard 8, they will be in a pulled state to maintain their functions. The elastic tension member 7 can not only be used as a tension member, but also as a protective member for protecting the corners of the steel frame 9. Finally, after the installation is completed, it can maintain the states of the arc-shaped cardboard 81, the outward floating cardboard 82 and the side fixing cardboard 8. And at this time, the elastic tension member 7 is still in a deformed state under tension (the extrusion of the steel frame 9 on the elastic tension member 7). Through this elastic force, the first folding surface 1 and the third folding surface 6 are further pulled, and the first folding surface 1 and the third folding surface 6 are further adhered to the outer surface of the steel frame 9, increasing the normal pressure, thereby increasing the friction force and further improving the fastening effect of the packaging corner protector installed on the steel frame 9. The set elastic tension member 7 has multiple functions and has a better use effect. The elastic tension member 7 here can be an elastic band or an elastic cardboard, which is an existing technology and will not be elaborated here;

[0039] When installing the elastic tension member 7, a dovetail protrusion 71 is provided at the end of the elastic tension member 7 away from the arc-shaped cardboard 81 and is fitted into the dovetail slot 72. The dovetail slot 72 is provided on the first folding surface 1. After folding the first folding surface 1, the second folding surface 5 and the third folding surface 6 through the first cutting line 2 and the second cutting line 3, the dovetail protrusion 71 is inserted into the dovetail slot 72, and the installation of the elastic tension member 7 can be realized. The installation method is relatively convenient;

[0040] A raised position is provided on the side of the third folding surface 6 close to the arc-shaped cardboard 81. The raised position is used to make the initial state of the arc-shaped cardboard 81 arc-shaped. The setting of the raised position is to prevent the initial state of the arc-shaped cardboard 81 from being straight and unable to be pulled into an arc shape.

[0041] Only some exemplary embodiments of the present invention have been described by way of illustration. Without doubt, for those of ordinary skill in the art, various different modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims

1. A packaging corner protector for steel frame photovoltaic module products, comprising integrally formed first folding surface (1), second folding surface (5) and third folding surface (6), wherein, A second cutting line (3) is provided between the second folding surface (5) and the third folding surface (6), and a first cutting line (2) is provided between the first folding surface (1) and the second folding surface (5). It is characterized in that the included angle between the first cutting line (2) and the second cutting line (3) is an acute angle. Through the first cutting line (2) and the second cutting line (3), the first folding surface (1), the second folding surface (5) and the third folding surface (6) are folded inward to form a packaging corner protector, and the included angle between the first folding surface (1) and the third folding surface (6) of the formed packaging corner protector is an acute angle; The packaging corner protector for the steel frame (9) photovoltaic module product further includes an elastic tension member (7) provided between the first folding surface (1) and the third folding surface (6), and a side wall fastening mechanism provided on the elastic tension member (7). When the packaging corner protector is installed on the steel frame (9), the side wall fastening mechanism is attached to the surface of the groove (10) of the steel frame (9) through the elastic tension member (7), and at the same time, the elastic tension member (7) itself forms a protective member for the corner of the packaging corner protector.

2. The packaging corner protector for steel frame photovoltaic module products according to claim 1, characterized in that, The side wall fastening mechanism includes an arc-shaped cardboard (81) provided on the third folding surface (6). The width of the arc-shaped cardboard (81) is smaller than the width of the third folding surface (6), and one end of the arc-shaped cardboard (81) is connected to the elastic tension member (7). When the packaging corner protector is installed on the steel frame (9), the elastic tension member (7) pulls the arc-shaped cardboard (81) to increase the radian of the arc-shaped cardboard (81).

3. The packaging corner protector for steel frame photovoltaic module products according to claim 2, characterized in that, An outward floating cardboard (82) is further provided on the arc-shaped cardboard (81). After the packaging corner protector is installed on the steel frame (9), the end of the outward floating cardboard (82) abuts against the surface of the groove (10) of the steel frame (9).

4. The packaging corner protector for steel frame photovoltaic module products according to claim 2, wherein, A side fixing cardboard (8) is further provided on the third folding surface (6), and the side fixing cardboard (8) is inclined. The inclined end of the side fixing cardboard (8) overlaps the raised position of the arc-shaped cardboard (81).

5. The packaging corner protector for steel frame photovoltaic module products according to claim 4, characterized in that, The hardness of the material of the arc-shaped cardboard (81) is greater than the hardness of the material of the side fixing cardboard (8).

6. The packaging corner protector for steel frame photovoltaic module products according to claim 2, wherein A dovetail protrusion (71) fitted in the dovetail clamping groove (72) is provided at the end of the elastic tension member (7) away from the arc-shaped cardboard (81), and the dovetail clamping groove (72) is provided on the first folding surface (1).

7. A packaging corner protector for steel frame photovoltaic module products according to claim 1, characterized in that, A clamping groove (4) that cooperates with each other is provided on the first folding surface (1). When the two first folding surfaces (1) are brought closer to each other through the first cutting line (2) and the second cutting line (3), the clamping groove (4) is used to fixedly connect the two first folding surfaces (1) to each other.

8. The packaging corner protector for steel frame photovoltaic module products according to claim 4, characterized in that, After the packaging corner protector formed by the first folding surface (1), the second folding surface (5) and the third folding surface (6) is installed on the steel frame (9), the arc-shaped cardboard (81) abuts against the surface of the groove (10) of the steel frame (9).

9. The packaging corner protector for steel frame photovoltaic module products according to claim 2, characterized in that, A raised position is provided on one side of the third folding surface (6) close to the arc-shaped cardboard (81), and the raised position is used to make the initial state of the arc-shaped cardboard (81) arc-shaped.

10. A packaging corner protector for steel frame photovoltaic module products according to claim 8, characterized in that, The sum of the width of the arc-shaped cardboard (81) and the width of the side fixing cardboard (8) is greater than the width of the third folding surface (6) and the groove (10).

Images