Corner connector, profiling punching tool and photovoltaic frame

Abstract

The utility model provides a corner connector, a profiling punching tool and a photovoltaic frame, and relates to the technical field of photovoltaic frames. The corner connector comprises a first connecting arm and a second connecting arm, and the included angle between the first connecting arm and the second connecting arm is larger than or equal to 90 degrees and smaller than 180 degrees. The first connecting arm is provided with a first hollow cavity; in the thickness direction of the first connecting arm, the first connecting arm comprises a first supporting wall and a second supporting wall which are oppositely arranged, and at least part of one of the first supporting wall and the second supporting wall is sunken towards the first hollow cavity. The two connecting arms of the corner connector are fixedly connected with the two adjacent frames respectively, one supporting wall of the first connecting arm is provided with a concave area, and therefore after the corresponding frame is inserted outside the first connecting arm, the portion, corresponding to the concave area, of the corresponding frame can be punched to be matched with the concave area through a profiling punching tool, and therefore the corner connector is formed. The sunken area can prevent the corresponding frame from being separated from the first connecting arm, so that the drawing force between the first connecting arm and the corresponding frame is greatly improved, and the connection reliability between the first connecting arm and the corresponding frame is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic frames, and in particular to an angle code, a profiling punch and a photovoltaic frame. Background Art

[0002] Adjacent frames of a photovoltaic frame are usually connected by angle brackets, and the angle brackets and the frames are usually fixedly connected by rivet points.

[0003] In the prior art, in order to reduce the cost of the photovoltaic frame, the wall thickness of the photovoltaic frame is made thinner and thinner, resulting in a relatively low pull-out force of the rivet point connection between the photovoltaic frame and the corner code, and a relatively low connection reliability. Utility Model Content

[0004] The first purpose of the utility model is to provide an angle code to solve the technical problem of relatively low pulling force between the frame and the angle code of the photovoltaic frame existing in the prior art.

[0005] The utility model provides an angle code for connecting adjacent frames of a photovoltaic frame, wherein the angle code comprises a first connecting arm and a second connecting arm, wherein the angle between the first connecting arm and the second connecting arm is greater than or equal to 90° and less than 180°; the first connecting arm is a hollow structure having a first hollow cavity; along the thickness direction of the first connecting arm, the first connecting arm comprises a first supporting wall and a second supporting wall which are arranged opposite to each other, and one of the first supporting wall and the second supporting wall is at least partially recessed into the first hollow cavity.

[0006] Further, the first supporting wall is located on the outside of the corner code, the second supporting wall is located on the inside of the corner code, and the second supporting wall is recessed toward the first hollow cavity.

[0007] Furthermore, a plurality of first latching teeth are arranged on the outer side of the second supporting wall, and the first latching teeth are arranged obliquely toward the direction of the second connecting arm, so as to prevent the frame of the photovoltaic frame from being separated from the first connecting arm.

[0008] Furthermore, a plurality of first reinforcing ribs are disposed in the first hollow cavity, and the first reinforcing ribs are fixedly connected to both the first supporting wall and the second supporting wall, and are perpendicular to the first supporting wall.

[0009] Furthermore, the second connecting arm is also a hollow structure having a second hollow cavity. The second connecting arm includes a third supporting wall and a fourth supporting wall. The third supporting wall is fixedly connected to the first supporting wall, and the fourth supporting wall is fixedly connected to the second supporting wall.

[0010] Furthermore, a plurality of second latching teeth are arranged on the outer side of the fourth supporting wall, and the second latching teeth are arranged obliquely toward the direction of the first connecting arm, so as to prevent the frame of the photovoltaic frame from being separated from the second connecting arm.

[0011] Furthermore, a side of each second latching tooth close to the first connecting arm is arranged perpendicular to the fourth supporting wall, and a side away from the first connecting arm is arranged at an angle of 45° to the fourth supporting wall.

[0012] Furthermore, a plurality of second reinforcing ribs are disposed in the second hollow cavity, and the second reinforcing ribs are perpendicular to and fixedly connected to the third supporting wall and the fourth supporting wall.

[0013] Furthermore, a connecting rib is provided between the first hollow cavity and the second hollow cavity, one end of the connecting rib is fixedly connected to the connection between the first support wall and the third support wall, and the other end of the connecting rib is fixedly connected to the connection between the second support wall and the fourth support wall.

[0014] Further, the free end of the first connecting arm is provided with a first guiding slope, and / or the free end of the second connecting arm is provided with a second guiding slope.

[0015] The angle code provided by the utility model can produce the following beneficial effects:

[0016] The utility model provides an angle code, wherein the first connecting arm and the second connecting arm are respectively fixedly connected to two adjacent frames of the photovoltaic frame, wherein a supporting wall of the first connecting arm is recessed into a cavity therein, i.e., has a recessed area. Thus, after the corresponding frame is inserted outside the first connecting arm, a contour punch can be used to punch the portion of the corresponding frame corresponding to the recessed area to match the recessed area. Thus, the recessed area of ​​the first connecting arm will be able to prevent the corresponding frame from detaching from the first connecting arm, i.e., the pulling force between the first connecting arm and the corresponding frame can be greatly improved, thereby improving the connection reliability between the two.

[0017] In addition, when the pulling force between the first connecting arm and the corresponding frame meets the requirements, the wall thickness of the supporting wall of the first connecting arm can be appropriately thinned, thereby reducing the weight per meter of the angle code and further reducing the cost.

[0018] The second purpose of the utility model is to provide a profiling punch to solve the technical problem of relatively low pulling force between the frame and the corner code of the photovoltaic frame in the prior art.

[0019] The utility model provides a profiling punch, whose punching surface matches the recessed area of ​​the above-mentioned corner code, and is used for punching the installation wall of the corresponding photovoltaic frame to fit the recessed area.

[0020] The contoured punch provided by the utility model can punch the installation wall portion of the photovoltaic frame corresponding to the recessed area of ​​the corner code to match the recessed area of ​​the corner code, that is, the recessed area of ​​the first connecting arm can block the corresponding frame from separating from the first connecting arm, which greatly improves the pulling force between the first connecting arm and the corresponding frame and improves the connection reliability between the two.

[0021] The third purpose of the utility model is to provide a photovoltaic frame to solve the technical problem of relatively low pulling force between the frame and the corner code of the photovoltaic frame in the prior art.

[0022] The photovoltaic frame provided by the utility model comprises a long frame, a short frame and the above-mentioned corner code, wherein the long frame is fixedly inserted outside the second connecting arm; the short frame is inserted outside the first connecting arm, and is matched and fixedly connected with the first connecting arm after being deformed by the above-mentioned profiling punch.

[0023] The photovoltaic frame provided by the utility model has adjacent frames connected by the above-mentioned profiling punch and the above-mentioned angle code, the recessed area of ​​the first connecting arm can prevent the short-length frame from separating from the first connecting arm, the pulling force between the first connecting arm and the short-length frame is large, and the connection reliability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0025] Figure 1 A schematic diagram of assembling the corner bracket and the photovoltaic frame through a contour punch provided in an embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 100-angle code; 110-first connecting arm; 111-first hollow cavity; 112-first supporting wall; 113-second supporting wall; 114-first latching tooth; 115-first reinforcing rib; 116-first guiding slope; 120-second connecting arm; 121-second hollow cavity; 122-third supporting wall; 123-fourth supporting wall; 124-second latching tooth; 125-second reinforcing rib; 126-second guiding slope; 130-connecting rib;

[0028] 200- profiling punch; 210- punching surface;

[0029] 300 - short frame; 310 - mounting cavity; 320 - first mounting wall; 330 - second mounting wall. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] This embodiment provides a corner code 100 for connecting adjacent frames of a photovoltaic frame, such as Figure 1 As shown, the angle code 100 includes a first connecting arm 110 and a second connecting arm 120, and the angle between the first connecting arm 110 and the second connecting arm 120 is greater than or equal to 90° and less than 180°; the first connecting arm 110 is a hollow structure, having a first hollow cavity 111; along the thickness direction of the first connecting arm 110, the first connecting arm 110 includes a first supporting wall 112 and a second supporting wall 113 arranged opposite to each other, and one of the first supporting wall 112 and the second supporting wall 113 is at least partially recessed into the first hollow cavity 111.

[0032] The corner code 100 provided in this embodiment has a first connecting arm 110 and a second connecting arm 120, respectively fixedly connected to two adjacent frames of the photovoltaic frame, wherein a supporting wall of the first connecting arm 110 is recessed into the cavity therein, i.e., has a recessed area. Thus, after the corresponding frame is inserted outside the first connecting arm 110, a contour punch 200 can be used to punch out the portion of the corresponding frame corresponding to the recessed area to match the recessed area. Thus, the recessed area of ​​the first connecting arm 110 will be able to prevent the corresponding frame from detaching from the first connecting arm 110, i.e., it can greatly enhance the pulling force between the first connecting arm 110 and the corresponding frame, thereby improving the connection reliability between the two.

[0033] In addition, when the pulling force between the first connecting arm 110 and the corresponding frame meets the requirements, the wall thickness of the supporting wall of the first connecting arm 110 can be appropriately thinned, thereby reducing the weight per meter of the corner code 100 and further reducing the cost.

[0034] Specifically, in this embodiment, Figure 1As shown, the first support wall 112 is located on the outside of the angle code 100, the second support wall 113 is located on the inside of the angle code 100, and the second support wall 113 is recessed toward the first hollow cavity 111. The "inside of the angle code 100" refers to the side where the area surrounded by the second support wall 113 of the first connecting arm 110 and the fourth support wall 123 of the second connecting arm 120 is located, and the "outside of the angle code 100" refers to the side where the area surrounded by the first support wall 112 of the first connecting arm 110 and the third support wall 122 of the second connecting arm 120 is located. In this embodiment, the recessed area of ​​the angle code 100 is located on its inside, and during assembly and stamping, the second connecting arm 120 and the contour punch 200 are located on the same side of the first connecting arm 110, so the occupied operating space is relatively small. Of course, in other embodiments of the present application, the recessed area of ​​the corner code 100 may also be located on its outer side, namely, the first support wall 112, which can also increase the pulling force between the corner code 100 and the first connecting arm 110 and improve the connection reliability between the corner code 100 and the frame.

[0035] It should also be noted here that, in the present embodiment, the second support wall 113 is generally in the shape of a concave arc, but in other embodiments of the present application, the second support wall 113 may also be partially concave, or, the second support wall 113 may also be in a wavy shape with multiple concave areas, both of which can improve the pulling force and connection reliability between the corner code 100 and the frame of the photovoltaic frame to a certain extent.

[0036] Specifically, in this embodiment, a plurality of first latch teeth 114 are disposed on the outer side of the second supporting wall 113, and the first latch teeth 114 are disposed obliquely toward the second connecting arm 120, so as to prevent the frame of the photovoltaic frame from being separated from the first connecting arm 110. In this configuration, the configuration of the first latch teeth 114 increases the contact position between the first connecting arm 110 and the frame of the photovoltaic frame, and can apply resistance to the frame at multiple force application points, so that the pulling force between the first connecting arm 110 and the corresponding frame can be further increased.

[0037] Specifically, in this embodiment, Figure 1 As shown, two first reinforcing ribs 115 are arranged in the first hollow cavity 111, and the first reinforcing ribs 115 are fixedly connected to both the first supporting wall 112 and the second supporting wall 113, and are perpendicular to the first supporting wall 112. In this arrangement, the first reinforcing ribs 115 can play a role in supporting the first supporting wall 112 and the second supporting wall 113, and can improve the structural strength of the first connecting arm 110. Of course, in other embodiments of the present application, the number of the first reinforcing ribs 115 is not limited to two, but can also be other numbers, such as three or one, etc., as long as the strength of the first connecting arm 110 can be guaranteed.

[0038] Specifically, in this embodiment, Figure 1As shown, the second connecting arm 120 is also a hollow structure, having a second hollow cavity 121, and the second connecting arm 120 includes a third supporting wall 122 and a fourth supporting wall 123, the third supporting wall 122 is fixedly connected to the first supporting wall 112, and the fourth supporting wall 123 is fixedly connected to the second supporting wall 113; the second connecting arm 120 forms a 90° angle with the first connecting arm 110. The hollow structure can reduce the weight of the corner code 100 and also reduce the cost.

[0039] Specifically, in this embodiment, Figure 1 As shown, a plurality of second latch teeth 124 are arranged on the outer side of the fourth supporting wall 123, and the second latch teeth 124 are arranged obliquely toward the direction of the first connecting arm 110, so as to prevent the frame of the photovoltaic frame from being separated from the second connecting arm 120. In this arrangement, the arrangement of the second latch teeth 124 increases the contact position between the second connecting arm 120 and the frame of the photovoltaic frame, and can apply resistance to the frame at multiple force application points, so that the pulling force between the second connecting arm 120 and the corresponding frame can be increased.

[0040] More specifically, in this embodiment, the side of each second latching tooth 124 close to the first connecting arm 110 is arranged perpendicular to the fourth supporting wall 123, and the side away from the first connecting arm 110 is arranged at a 45° angle with the fourth supporting wall 123. Of course, in other embodiments of the present application, the angle between the side of the second latching tooth 124 away from the first connecting arm 110 and the fourth supporting wall 123 is not limited to 45°, for example, it can also be 60° or 40°, etc. As long as the pulling force requirement can be met, the present application does not impose specific restrictions on the angle setting of the two sides of the second latching tooth 124.

[0041] Specifically, in this embodiment, Figure 1 As shown, a plurality of second reinforcing ribs 125 are arranged in the second hollow cavity 121, and the second reinforcing ribs 125 are perpendicular to and fixedly connected to the third support wall 122 and the fourth support wall 123. In this arrangement, the second reinforcing ribs 125 can support the third support wall 122 and the fourth support wall 123, and can improve the structural strength of the second connecting arm 120. Of course, in other embodiments of the present application, the number of the second reinforcing ribs 125 is not limited to two, but can also be other numbers, such as three or one, as long as the strength of the second connecting arm 120 can be guaranteed.

[0042] Specifically, in this embodiment, continue as Figure 1 As shown, a connecting rib 130 is provided between the first hollow cavity 111 and the second hollow cavity 121, one end of the connecting rib 130 is fixedly connected to the connection between the first supporting wall 112 and the third supporting wall 122, and the other end is fixedly connected to the connection between the second supporting wall 113 and the fourth supporting wall 123. In this arrangement, the connecting rib 130 can improve the structural strength of the corner bracket 100 at the bend.

[0043] Specifically, in this embodiment, continue as Figure 1 As shown, the free end of the first connecting arm 110 is provided with a first guiding slope 116, and the free end of the second connecting arm 120 is provided with a second guiding slope 126. In the process of assembling the frame and the corner bracket 100, the first guiding slope 116 and the second guiding slope 126 can both play a guiding role, so as to facilitate the rapid insertion of the frame of the photovoltaic frame outside the corresponding connecting arm.

[0044] Specifically, in this embodiment, the angle code 100 is formed by extrusion, that is, the angle code 100 is extruded by hot forward extrusion, and the key process parameters of the extrusion include: the temperature of the casting rod is controlled at 470-490°C; when the extruder is selected, the extruder must meet the extrusion ratio>40; the extrusion rod speed is controlled at 4-7mm / s; the extrusion outlet temperature is controlled at 520-535°C; after extrusion, strong wind cooling is performed. After extrusion, it is cut into 6000mm fixed length and framed; after artificial aging at a temperature range of 165-170°C and a duration of 8-10h, it is cut into small pieces of equal width of 25-30mm and can be used.

[0045] This embodiment also provides a profiling punch 200, whose punching surface 210 matches the recessed area of ​​the above-mentioned corner code 100, and is used to punch the installation wall of the corresponding photovoltaic frame to fit the recessed area.

[0046] Specifically, in this embodiment, the material of the profiling punch 200 is 6003 aluminum alloy, and its composition complies with the national standard. Of course, other materials that meet the standard can also be used.

[0047] The contoured punch 200 provided in this embodiment can punch the installation wall portion of the photovoltaic frame corresponding to the recessed area of ​​the corner code 100 to match the recessed area of ​​the corner code 100, that is, it can make the recessed area of ​​the first connecting arm 110 block the corresponding frame from detaching from the first connecting arm 110, greatly improving the pulling force between the first connecting arm 110 and the corresponding frame, and improving the connection reliability between the two.

[0048] This embodiment also provides a photovoltaic frame, such as Figure 1 As shown, the photovoltaic frame includes a long frame, a short frame 300 and the above-mentioned corner code 100, the long frame is fixedly inserted outside the second connecting arm 120; the short frame 300 is inserted outside the first connecting arm 110, and is matched and fixedly connected with the first connecting arm 110 after being stamped and deformed by the above-mentioned profiling punch 200. Figure 1As shown, the short-length frame 300 has a mounting cavity 310 and a first mounting wall 320 and a second mounting wall 330 that are arranged opposite to each other. The first mounting wall 320 corresponds to the first supporting wall 112 of the first connecting arm 110, and the second mounting wall 330 corresponds to the second supporting wall 113. During assembly, the second mounting wall 330 will be deformed by local stamping.

[0049] Specifically, when assembling the long frame, the short frame 300 and the corner code 100, the short frame 300 can be first inserted outside the first connecting arm 110 of the corner code 100, and then placed under the profiling punch 200, and punched using the profiling punch 200; then the long frame is inserted outside the second connecting arm 120 of the corner code 100, and the interference rivet point is punched to make the two have an interference fit.

[0050] The photovoltaic frame provided in this embodiment has adjacent frames connected by the above-mentioned contour punch 200 and the above-mentioned corner code 100. The recessed area of ​​the first connecting arm 110 can prevent the short-length frame 300 from detaching from the first connecting arm 110. The pulling force between the first connecting arm 110 and the short-length frame 300 is large, and the connection reliability is high.

[0051] Finally, it should be noted that, in this article, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes 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.

[0052] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An angle code for connecting adjacent frames of a photovoltaic frame, characterized in that: The angle code (100) comprises a first connecting arm (110) and a second connecting arm (120), wherein the angle between the first connecting arm (110) and the second connecting arm (120) is greater than or equal to 90° and less than 180°; the first connecting arm (110) is a hollow structure, and has a first hollow cavity (111); along the thickness direction of the first connecting arm (110), the first connecting arm (110) comprises a first supporting wall (112) and a second supporting wall (113) which are arranged opposite to each other, and one of the first supporting wall (112) and the second supporting wall (113) is at least partially recessed into the first hollow cavity (111).

2. The angle code according to claim 1, characterized in that: The first supporting wall (112) is located on the outside of the angle code (100), the second supporting wall (113) is located on the inside of the angle code (100), and the second supporting wall (113) is recessed toward the first hollow cavity (111).

3. The angle code according to claim 2, characterized in that: A plurality of first latching teeth (114) are arranged on the outer side of the second supporting wall (113), and the first latching teeth (114) are arranged obliquely in the direction of the second connecting arm (120) to prevent the frame of the photovoltaic frame from detaching from the first connecting arm (110).

4. The angle code according to claim 1, characterized in that: A plurality of first reinforcing ribs (115) are arranged in the first hollow cavity (111); the first reinforcing ribs (115) are fixedly connected to both the first supporting wall (112) and the second supporting wall (113), and are perpendicular to the first supporting wall (112).

5. The angle code according to any one of claims 1 to 4, characterized in that: The second connecting arm (120) is also a hollow structure having a second hollow cavity (121). The second connecting arm (120) comprises a third supporting wall (122) and a fourth supporting wall (123). The third supporting wall (122) is fixedly connected to the first supporting wall (112), and the fourth supporting wall (123) is fixedly connected to the second supporting wall (113).

6. The angle code according to claim 5, characterized in that: A plurality of second latch teeth (124) are arranged on the outer side of the fourth supporting wall (123), and the second latch teeth (124) are arranged obliquely in the direction of the first connecting arm (110) to prevent the frame of the photovoltaic frame from detaching from the second connecting arm (120).

7. The angle code according to claim 6, characterized in that: The side of each second latching tooth (124) close to the first connecting arm (110) is arranged perpendicular to the fourth supporting wall (123), and the side away from the first connecting arm (110) is arranged at an angle of 45° to the fourth supporting wall (123).

8. The angle code according to claim 5, characterized in that: A plurality of second reinforcing ribs (125) are arranged in the second hollow cavity (121), and the second reinforcing ribs (125) are perpendicular to and fixedly connected to the third supporting wall (122) and the fourth supporting wall (123).

9. The angle code according to claim 5, characterized in that: A connecting rib (130) is provided between the first hollow cavity (111) and the second hollow cavity (121); one end of the connecting rib (130) is fixedly connected to the connection between the first supporting wall (112) and the third supporting wall (122), and the other end is fixedly connected to the connection between the second supporting wall (113) and the fourth supporting wall (123).

10. The angle code according to claim 5, characterized in that: The free end of the first connecting arm (110) is provided with a first guiding slope (116), and / or the free end of the second connecting arm (120) is provided with a second guiding slope (126).

11. A profiling punch, characterized in that: The punching surface (210) of the contour punch (200) matches the recessed area of ​​the angle code (100) described in any one of claims 1 to 10, and is used to punch the corresponding mounting wall of the photovoltaic frame to match the recessed area.

12. A photovoltaic frame, characterized in that: It comprises a long frame, a short frame (300) and the corner code (100) according to any one of claims 1 to 10, wherein the long frame is fixedly inserted outside the second connecting arm (120); the short frame (300) is inserted outside the first connecting arm (110), and is matched and fixedly connected with the first connecting arm (110) after being deformed by punching with the profiling punch (200) according to claim 11.

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