Photovoltaic frame without closed cavity

Abstract

The utility model discloses a photovoltaic frame without a closed cavity. The photovoltaic frame comprises a short frame, a long frame and a corner connector. The photovoltaic frame is made of an aluminum alloy material and is formed through forward hot extrusion by using a flat die. A traditional cavity structure of the short frame and the long frame is replaced by one reinforcing rib. The corner connector is replaced by two tooth-shaped structures on the two sides from a traditional cavity structure. The frame has the advantages that the short frames, the long frames and the corner connectors are all of non-closed-cavity structures, only a flat die needs to be used for extrusion, the die cost is saved, forming is easier, the extrusion speed is higher, efficiency is higher, metal is saved, and the comprehensive cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, and in particular to a photovoltaic frame without a closed cavity. Background Art

[0002] At present, aluminum alloy photovoltaic frames are mainly cavity structures, which are mainly produced by combined die extrusion processing. The investment cost is large. Due to structural limitations, the extrusion speed is relatively low, the yield is low, the cost is high, and black lines and stripes are easily generated. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide a photovoltaic frame without a closed cavity.

[0004] According to the utility model, a photovoltaic frame without a closed cavity is provided, comprising a first frame and a second frame connected and assembled via an angle code, wherein the first frame comprises a first reinforcing rib of a plate structure without a closed cavity, and a first intersecting interlocking anchor point is formed on the first reinforcing rib and protrudes from the upper and lower sides of the first reinforcing rib; the second frame comprises a second reinforcing rib of a plate structure without a closed cavity, and a second intersecting interlocking anchor point is formed on the second reinforcing rib and protrudes from the upper and lower sides of the second reinforcing rib; the angle code is formed with two open slot-type angle plates, and each angle plate is respectively It includes: a support wall I and a support wall II facing each other across an insertion opening I, and a latch tooth group I and a latch tooth group II formed on the opposite surfaces of the support wall I and the support wall II respectively; a support wall III and a support wall IV facing each other across an insertion opening II, and a latch tooth group III and a latch tooth group IV formed on the opposite surfaces of the support wall III and the support wall IV respectively; wherein the first reinforcing ribs and the second reinforcing ribs are respectively connected to the two open slot-type angle plates inserted into the angle code in a manner that the protruding heights of the first intersecting interlocking anchor points and the second intersecting interlocking anchor points are consistent with the tooth groove structure of the corresponding position of the angle code.

[0005] Preferably, the first frame and the second frame are respectively constituted as a short frame and a long frame, and the short frame and the long frame respectively include a short-rule receiving groove provided with a short-rule overflow glue groove and a long-rule receiving groove provided with a long-rule overflow glue groove.

[0006] Preferably, the short frame includes: a short-scale A surface formed with a short-scale glue overflow groove, a short-scale B surface adjacent to the short-scale A surface, a bottom edge that together with the short-scale A surface and the short-scale B surface forms a short-scale accommodating groove, and a short-scale C surface parallel to the bottom edge, wherein a first reinforcing rib connects the bottom edge with the short-scale C surface, and the long frame has the same structure as the short frame except that the width of the long-scale C surface corresponding to the width of the short-scale C surface is different.

[0007] Preferably, the end side of the short frame is also formed with: a short-length end 45° inclined surface portion located on the end side of the short-length C-surface portion, and a short-length end punching surface portion located on the end side of the first reinforcing rib.

[0008] Preferably, the end of the first reinforcing rib is indented at a 45° inclined portion relative to the short end.

[0009] Preferably, the first intersecting interference anchor points include: a short-length middle interference anchor point protruding downward from the top of the first reinforcing rib, and short-length two-side interference anchor points protruding upward from the bottom of the first reinforcing rib.

[0010] Preferably, the interference anchor points on both sides of the short ruler and the interference anchor points in the middle of the short ruler are arranged side by side in a staggered manner to form a matrix of points.

[0011] Preferably, the latch tooth group I and the latch tooth group II, and the latch tooth group III and the latch tooth group IV are respectively formed as saw-tooth-shaped teeth facing each other.

[0012] Preferably, the tooth tip of each tooth faces away from the slot opening, and the width between each pair of corresponding tooth tips gradually narrows as approaching the corner of the angle code, and the envelope lines of each side tooth tip relatively form a conical profile.

[0013] Preferably, the angle code also includes a groove bottom I and a groove bottom II which respectively constitute the bottom of the open slot, and can respectively cooperate with the end of the first reinforcing rib and the end of the second reinforcing rib.

[0014] The beneficial effects of the utility model are as follows: the short frame, the long frame and the corner code all adopt a non-enclosed cavity structure instead of a traditional cavity structure, and a flat mold can be used for extrusion, which saves mold costs, makes molding easier, extrudes faster, is more efficient, saves metal, and significantly reduces the overall cost.

[0015] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an assembly effect diagram of a photovoltaic frame according to an embodiment,

[0017] Figure 2 It is a schematic diagram of the short frame section.

[0018] Figure 3 This is a schematic diagram of the short frame end processing.

[0019] Figure 4 It is a schematic diagram of the long frame section.

[0020] Figure 5 This is a schematic diagram of the processing of the long frame end.

[0021] Figure 6 This is a schematic diagram of the angle code end face.

[0022] Figure 7 This is a diagram of the short frame, long frame, and corner code just before assembly.

[0023] Figure 8 This is a partial enlarged schematic diagram of the short frame, long frame, and corner code assembly. DETAILED DESCRIPTION

[0024] The exemplary embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings. The exemplary embodiments described below and shown in the accompanying drawings are intended to teach the principles of the present utility model, so that those skilled in the art can implement and use the present utility model in several different environments and for several different applications. Therefore, the scope of protection of the present utility model is defined by the attached claims, and the exemplary embodiments are not intended to be, and should not be considered as, a restrictive description of the scope of protection of the present utility model. Moreover, for the convenience of description, the sizes of the various parts shown in the accompanying drawings are not necessarily drawn according to the actual proportional relationship, and the orientation description, such as the longitudinal direction corresponding to the longitudinal length of the main body, and the orientation or position relationship indicated by the upper, lower, left, right, top, bottom, etc., are all based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. Unless otherwise specifically stated, the order of the components and assembly steps described in the embodiments and the numerical values ​​do not limit the scope of the present utility model.

[0025] According to one embodiment of the utility model, a photovoltaic frame without a closed cavity is provided, such as Figure 1 , 7 8, including: a short frame 100, a long frame 200 and a corner code 300. By splicing the three adjacent ones to each other, a rectangular photovoltaic frame can be assembled. Here, the short frame 100 and the long frame 200 are used as examples to illustrate the first frame and the second frame, but it is not limited to this. The two can also have the same length to form a square photovoltaic frame.

[0026] Among them, Figure 2 As shown, the short frame 100 includes: a short-scale A surface 101 formed with a short-scale glue overflow groove 103, a short-scale B surface 102 adjacent to the short-scale A surface 101, a bottom edge 112 that together with the short-scale A surface 101 and the short-scale B surface 102 form a short-scale accommodating groove 104, a short-scale C surface 106 that is roughly parallel to the bottom edge 112, and a first reinforcing rib 105 connecting the bottom edge 112 and the short-scale C surface 106.

[0027] In addition, if Figure 3As shown, for splicing, the end side of the short frame 100 is also formed with: a 45° inclined surface portion 107 (α=45°) of the short length end located on the end side of the short length C surface portion 106, a short length end punching surface portion 108 located on the end side of the first reinforcing rib 105, an interference anchor point 109 in the middle of the short length, and interference anchor points 110 on both sides of the short length.

[0028] Among them, Figure 4 As shown, the long frame 200 includes: a long ruler A surface 201 formed with a long ruler overflow groove 203, a long ruler B surface 202 adjacent to the long ruler A surface 201, a bottom side 212 that together with the long ruler A surface 201 and the long ruler B surface 202 encloses a long ruler receiving groove 204, a long ruler C surface 206 roughly parallel to the bottom side 212, and a second reinforcing rib 205 connecting the bottom side 212 and the long ruler C surface 206.

[0029] In addition, if Figure 5 As shown, for splicing, the end side of the long frame 200 is also formed with: a 45° inclined surface 207 (β=45°) at the end side of the long ruler C surface 206, a punched surface 208 at the end side of the long ruler, an interference anchor point 209 in the middle of the long ruler, and interference anchor points 210 on both sides of the long ruler.

[0030] Among them, Figure 6 As shown, the angle code 300 is integrally formed with two open slot type angle plates extending at right angles to each other, and each angle plate comprises: a supporting wall Ⅰ302 and a supporting wall Ⅱ304 opposite to each other across an insertion port Ⅰ301, and a latch tooth group Ⅰ303 and a latch tooth group Ⅱ305 respectively formed on the opposite surfaces of the supporting wall Ⅰ302 and the supporting wall Ⅱ304; a supporting wall Ⅲ306 and a supporting wall Ⅳ310 opposite to each other across an insertion port Ⅱ308, and a latch tooth group Ⅲ307 and a latch tooth group Ⅳ309 respectively formed on the opposite surfaces of the supporting wall Ⅲ306 and the supporting wall Ⅳ310, and a groove bottom Ⅰ311 and a groove bottom Ⅱ312 respectively constituting the bottom of the open slot.

[0031] Tooth group I 303 and tooth group II 305 (the same applies to tooth group III 307 and tooth group IV 309) are respectively formed as saw-tooth-like teeth facing each other, thereby forming a layered tooth-like structure similar to the crown of a Christmas tree in the cross-sectional view, and the direction of each tooth tip is preferably away from the slot opening (i.e., insertion port I 301 and insertion port II 308), and the width of the slot opening (the width between each pair of corresponding tooth tips) gradually narrows as it approaches the corner portion of the angle code 300, so that the envelope lines of each side tooth tip relatively form a conical profile, but it is not limited to this, as long as the angle code 300 can be easily inserted into the first reinforcing ribs 105 at both ends of the short frame 100 and the second reinforcing ribs 205 at both ends of the long frame 200, it is more preferable that the ends of the first reinforcing rib 105 and the second reinforcing rib 205 can respectively cooperate with the groove bottom I 311 and the groove bottom II 312.

[0032] Corresponding to each tooth, as described later, a first intersecting anchor point punched out from the upper and lower surfaces of the first reinforcing rib 105 and a second intersecting anchor point punched out from the upper and lower surfaces of the second reinforcing rib 205 are formed.

[0033] Preferably, the short A surface 101 is perpendicular to the short B surface 102. Except that the width of the short C surface 106 is different from that of the long C surface 206, the sizes of other corresponding parts of the short frame 100 and the long frame 200 are consistent.

[0034] Thus, the photovoltaic frame can be made of aluminum alloy, and a flat die is used for forward hot extrusion molding to extrude the short frame 100, the long frame 200 and the corner code 300 according to the shape of the drawing. Among them, the first reinforcing rib 105 and the second reinforcing rib 205 are both plate structures without a closed cavity.

[0035] In one embodiment, the short frame 100 is sawn into a required length, and the two longitudinal ends are beveled at 45°, and the first reinforcing ribs 105 on the two end sides are punched down a distance from the top side of the end, so that the ends of the first reinforcing ribs 105 are indented relative to the 45° bevel portion 107 of the short end, and the first intersecting overlap anchor points are punched out at intervals on the upper and lower sides of the first reinforcing ribs 105, such as Figure 3 As shown, it includes: a short-length middle interference anchor point 109 protruding downward from the top of the first reinforcing rib 105, and short-length two-side interference anchor points 110 protruding upward from the bottom of the first reinforcing rib 105. Here, the short-length two-side interference anchor points 110 and the short-length middle interference anchor points 109 are arranged side by side in a staggered manner to form a matrix of three columns and three rows.

[0036] The long frame 200 is sawn into the required length, and the two longitudinal ends are beveled at 45°. The second reinforcing ribs 205 on the two end sides are punched down a distance from the top side of the end, so that the ends of the second reinforcing ribs 205 are indented relative to the 45° bevel portion 207 of the long end, and second intersecting overlap anchor points are punched out at intervals on the upper and lower sides of the second reinforcing ribs 205, such as Figure 5 As shown, it includes: a long ruler middle interference anchor point 209 punched downward from the top of the second reinforcing rib 205, and a long ruler side interference anchor point 210 punched upward from the bottom of the second reinforcing rib 205. Here, the long ruler side interference anchor points 210 and the long ruler middle interference anchor point 209 are arranged side by side in a staggered manner to form a matrix of three columns and three rows.

[0037] The corner code 300 can be sawed into the required width. The protruding height of each interference anchor point of the short frame 100 and the long frame 200 is matched with the tooth groove structure of the corresponding position of the corner code 300.

[0038] Insert the corner code 300 into both ends of the short frame 100. After completing the above steps, send it to the frame assembly manufacturer. First, glue the short frame 100 and the long frame 200 into the receiving grooves. When the photovoltaic panel is inserted into the receiving grooves of the short frame 100 and the long frame 200, the corner code 300 on the short frame 100 is inserted into the end of the long frame 200.

[0039] In one embodiment, the material of the photovoltaic frame is 6005 aluminum alloy, and the composition meets the requirements of GBT3190-2020. The aluminum alloy is produced by hot extrusion forming to meet the requirements of GBT3190-2020. Figure 2 , Figure 4 and Figure 6 The short frame 100, the long frame 200 and the corner code 300 are processed using flat mold technology and will not be described in detail.

[0040] After extrusion, it is cut into a fixed length of 6050 (0, +20) mm and then aged. The aging process is 185-195℃*3-4h. The corner code 300 is kept for backup. After that, the short frame 100 and the long frame 200 are sandblasted or shot blasted. Specifically, taking the sandblasting process as an example, the glass sand is 40-80 mesh and the sandblasting speed is 25-35HZ. Then conventional anodizing is carried out, and the process is not described in detail.

[0041] After that, further processing is carried out. The length of the long frame 200 is 2000mm (±0.3) mm, the length of the short frame 100 is 1000mm (±0.3) mm, and the width of the corner code 300 is 2-2.5mm shorter than the length of the corresponding reinforcement rib of the short frame or long frame 200.

[0042] The two ends of the short frame are cut to 45 (0, -0.3) degrees to the side, and the first reinforcing ribs 105 at both ends of the short frame are shortened with a special punching knife, and the shortening distance is 0.5-1mm greater than the dimension of the support wall Ⅰ302 minus the depth of the insertion port Ⅰ301. A special punching tool is used to punch the first reinforcing ribs 105 at both ends of the short frame to form overlapping anchor points, and each anchor point is protrudingly formed at a predetermined height of the first reinforcing rib 105.

[0043] The two ends of the long frame 200 are cut to 45 (0, -0.3) degrees to the side, and the second reinforcing ribs 205 at the two ends of the short frame are shortened by a special punching knife, and the shortening distance is 0.5-1mm larger than the dimension of the support wall II 304 minus the depth of the insertion port II 308. The second reinforcing ribs 205 at the two ends of the long frame 200 are punched with a special punching tool to form overlapping anchor points, and each anchor point is protrudingly formed at a predetermined height of the first reinforcing rib.

[0044] The width of the insertion opening II 308 of the corner code 300 is 0.2-0.5 mm greater than the thickness of the short frame reinforcement rib or the thickness of the long frame 200 reinforcement rib at the corresponding matching position.

[0045] The corner code 300 is inserted into the first reinforcing ribs 105 at both ends of the short frame 100 .

[0046] Glue the short-size receiving grooves 104 of the two short frames 100 and the long-size overflowing grooves 203 of the two long frames 200, insert the photovoltaic panels into the receiving grooves, and insert the second reinforcing ribs 205 at both ends of the long frames 200 into the corner brackets 300 at both ends of the two short frames. The whole assembly process is now completed.

[0047] In the description of the present application, "multiple" means two or more than three, unless otherwise clearly and specifically defined. Unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. Although the present invention has been described with reference to various specific embodiments, it should be understood that variations can be made within the spirit and scope of the concept of the described utility model. Therefore, it is intended that the present invention is not limited to the described embodiments, but will have the full scope defined by the language of the appended claims.

Claims

1. A photovoltaic frame without a closed cavity, characterized in that: The invention comprises a first frame and a second frame connected and assembled via an angle code (300), wherein the first frame comprises a first reinforcing rib (105) of a plate structure without a closed cavity, and the first reinforcing rib (105) is formed with a first intersecting interlocking anchor point protruding from the upper and lower sides of the first reinforcing rib (105); the second frame comprises a second reinforcing rib (205) of a plate structure without a closed cavity, and the second reinforcing rib (205) is formed with a second intersecting interlocking anchor point protruding from the upper and lower sides of the second reinforcing rib (205); the angle code (300) is formed with two open slot-type angle plates, and each angle plate comprises: a supporting wall I (302) and a supporting wall II (303) which are opposite to each other across an insertion opening I (301); 4), a latching tooth group I (303) and a latching tooth group II (305) respectively formed on the opposite surfaces of the support wall I (302) and the support wall II (304); a support wall III (306) and a support wall IV (310) opposite to each other across the insertion opening II (308); a latching tooth group III (307) and a latching tooth group IV (309) respectively formed on the opposite surfaces of the support wall III (306) and the support wall IV (310); wherein the first reinforcing rib (105) and the second reinforcing rib (205) are respectively connected to the two open slot-type angle plates inserted in the angle code (300) in such a way that the protruding heights of the first intersecting interlocking anchor points and the second intersecting interlocking anchor points are consistent with the tooth groove structure at the corresponding position of the angle code (300).

2. The photovoltaic frame without a closed cavity according to claim 1, characterized in that: The first frame and the second frame are respectively constituted as a short frame (100) and a long frame (200), and the short frame (100) and the long frame (200) respectively comprise a short ruler receiving groove (104) provided with a short ruler overflowing groove (103), and a long ruler receiving groove (204) provided with a long ruler overflowing groove (203).

3. The photovoltaic frame without a closed cavity according to claim 2, characterized in that: The short frame (100) comprises: a short-scale A face portion (101) formed with a short-scale glue overflow groove (103), a short-scale B face portion (102) adjacent to the short-scale A face portion (101), a bottom edge (112) which, together with the short-scale A face portion (101) and the short-scale B face portion (102), encloses a short-scale receiving groove (104), and a short-scale C face portion (106) parallel to the bottom edge (112), wherein a first reinforcing rib (105) connects the bottom edge (112) and the short-scale C face portion (106). The long frame (200) has the same structure as the short frame (100) except that the width of the long-scale C face portion (206) corresponding to the width of the short-scale C face portion (106) is different.

4. The photovoltaic frame without a closed cavity according to claim 3, characterized in that: Also formed on the end side of the short frame (100) are: a short-length end 45° inclined surface portion (107) located on the end side of the short-length C surface portion (106), and a short-length end punching surface portion (108) located on the end side of the first reinforcing rib (105).

5. The photovoltaic frame without a closed cavity according to claim 4, characterized in that: The end of the first reinforcing rib (105) is indented relative to the 45° inclined portion (107) of the short end.

6. The photovoltaic frame without a closed cavity according to claim 5, characterized in that: The first intersecting interference anchor points include: a short-length middle interference anchor point (109) protruding downward from the top of the first reinforcing rib (105), and short-length side interference anchor points (110) protruding upward from the bottom of the first reinforcing rib (105).

7. The photovoltaic frame without a closed cavity according to claim 6, characterized in that: The interference anchor points (110) on both sides of the short ruler and the interference anchor point (109) in the middle of the short ruler are arranged side by side in a staggered manner to form a matrix point shape.

8. The photovoltaic frame without a closed cavity according to claim 1, characterized in that: The latching tooth group I (303) and the latching tooth group II (305), and the latching tooth group III (307) and the latching tooth group IV (309) are respectively formed into sawtooth-like teeth facing each other.

9. The photovoltaic frame without a closed cavity according to claim 8, characterized in that: The tooth tip of each tooth faces away from the slot opening, and the width between each pair of corresponding tooth tips gradually narrows as it approaches the corner of the angle code (300), and the envelope lines of each side tooth tip relatively form a conical profile.

10. The photovoltaic frame without a closed cavity according to claim 1, characterized in that: The angle code (300) further comprises a slot bottom I (311) and a slot bottom II (312) which respectively constitute the bottom of the open slot and can respectively cooperate with the end of the first reinforcing rib (105) and the end of the second reinforcing rib (205).

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