Corner connector for photovoltaic frame, photovoltaic frame and photovoltaic module

Abstract

The utility model relates to the technical field of photovoltaic frames, and discloses a corner connector for a photovoltaic frame, the photovoltaic frame and a photovoltaic assembly. The corner connector comprises a first connecting part and a second connecting part which are in corner connection, each of the first connecting part and the second connecting part is provided with a first mounting wall and a second mounting wall which are in bent connection, and the outer edge of the first mounting wall and / or the second mounting wall is provided with a sawtooth structure used for being mounted in a corner connector mounting cavity of the photovoltaic frame strip; the free ends of the first installation wall and the second installation wall are respectively provided with a first guide sheet and a second guide sheet which are inclined towards the inner side of the corner connector, so that the first installation wall and the second installation wall are inserted and installed in the corner connector installation cavity of the photovoltaic frame strip through the first guide sheet and the second guide sheet. The corner connector for the photovoltaic frame is simpler in structure, lower in raw material cost and manufacturing cost, low in processing precision requirement of the corner connector and the photovoltaic frame strip, smoother in assembly of the corner connector and the photovoltaic frame strip, and capable of avoiding the phenomenon of glass top explosion during assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic frames, and particularly relates to a corner fitting for a photovoltaic frame, a photovoltaic frame and a photovoltaic module. Background Art

[0002] With the development of photovoltaic technology, it has been found that the raw material cost of traditional aluminum frames and their supporting aluminum corner fittings is high, the production energy consumption is high, and the processes are complex, resulting in high production costs of the corresponding photovoltaic modules; the production process of aluminum photovoltaic frames and aluminum corner fittings also causes environmental pollution and is not conducive to environmental protection; moreover, the mechanical strength of aluminum is relatively low, which is also not conducive to improving the mechanical properties and wind load resistance of photovoltaic frames and photovoltaic modules.

[0003] Therefore, in recent years, as shown in the publication numbers CN217693227U and CN217240647U, the industry has begun to gradually replace traditional aluminum photovoltaic frames and aluminum corner fittings with low-cost, high-strength and more environmentally friendly steel frames and steel corner fittings. Moreover, as shown in the publication numbers CN217693227U, CN217240647U and CN218093740U, in order to achieve rapid and convenient assembly of corner fittings and photovoltaic frames, the prior art also provides a guiding structure (such as guiding claws, guiding pieces or guiding plates) at the free ends of the top surface and the bottom surface of the corner fitting.

[0004] However, the existing corner fittings still have the following defects: (1) Taking CN217240647U as an example, both the right corner piece and the left corner piece of this corner fitting are provided with three interconnected mounting walls. In this way, there are three mounting walls of the right corner piece (or the left corner piece) of the corner fitting that need to be mounted into the corner fitting mounting cavity of the photovoltaic frame. Therefore, the dimensional processing accuracy requirements for the corner fitting mounting cavity of the photovoltaic frame and the right corner piece (or the left corner piece) of the corner fitting are very high; otherwise, if there is a slight deviation in the dimensional processing of the corner fitting and / or the corner fitting mounting cavity of the photovoltaic frame, it is likely to cause the right corner piece (or the left corner piece) of the corner fitting to be difficult to insert into the corner fitting mounting cavity of the photovoltaic frame (such as a long frame), which is not conducive to the rapid and convenient assembly of the corner fitting and the photovoltaic frame, and may even easily cause the glass of the photovoltaic laminate to be burst during the assembly process. (2) Taking the right corner piece of this corner fitting as an example, among the three interconnected mounting walls of the right corner piece of the corner fitting, only the free ends of the upper mounting wall (the upper mounting wall is located on the top surface of the corner fitting) and / or the lower mounting wall (the lower mounting wall is located on the bottom surface of the corner fitting) are provided with guiding pieces, while the side mounting wall connecting the upper mounting wall and the lower mounting wall is not provided with a guiding structure, which further increases the assembly difficulty of inserting the corner fitting into the corner fitting mounting cavity of the photovoltaic frame, is not conducive to the rapid and convenient assembly of the corner fitting and the photovoltaic frame, and is also likely to burst the glass of the photovoltaic laminate during the assembly process, reducing the product yield. Summary of the Utility Model

[0005] The purpose of the present utility model is to overcome the deficiencies of the prior art and provide a corner fitting for a photovoltaic frame, a photovoltaic frame, and a photovoltaic module.

[0006] Based on this, the present utility model discloses a corner fitting for a photovoltaic frame, including a first connecting portion and a second connecting portion connected at a corner. Both the first connecting portion and the second connecting portion are provided with a first mounting wall and a second mounting wall connected by bending. A serrated structure for mounting into a corner fitting cavity of a photovoltaic frame bar is provided on the outer edge of the first mounting wall and / or the second mounting wall;

[0007] The free ends of the first mounting wall and the second mounting wall are respectively provided with a first guiding piece and a second guiding piece inclined towards the inside of the corner fitting, so as to insert and mount the first mounting wall and the second mounting wall into the corner fitting cavity of the photovoltaic frame bar through the first guiding piece and the second guiding piece.

[0008] Preferably, the first mounting wall is vertically arranged on the side surface of the corner fitting. The fixed end of the first guiding piece is connected to the first mounting wall, and the free end of the first guiding piece is inclined towards the inside of the corner fitting.

[0009] More preferably, the height of the first guiding piece is less than or equal to the height of the first mounting wall, and the height dimension of the first guiding piece gradually decreases from its fixed end to its free end.

[0010] Preferably, the second mounting wall is arranged on the bottom surface of the corner fitting. A partial position of the second mounting wall close to the first guiding piece side is inclined upwards to form the second guiding piece.

[0011] More preferably, the width of the second guiding piece is less than the width of the second mounting wall, so as to insert the second guiding piece into the corner fitting cavity of the photovoltaic frame bar.

[0012] Preferably, a gap for separating the free ends of the second guiding piece and the first guiding piece from each other is provided between the second guiding piece and the first guiding piece.

[0013] Preferably, the first mounting wall of the first connecting portion and the first mounting wall of the second connecting portion are integrally formed by bending connection; the second mounting wall of the first connecting portion and the second mounting wall of the second connecting portion are clamped on the same plane.

[0014] More preferably, a clamping groove or a clamping block is provided on the connecting side of the second mounting wall of the first connecting portion, and a matching clamping block or clamping groove is provided on the corresponding connecting side of the second mounting wall of the second connecting portion.

[0015] Even more preferably, the clamping block protrudes upwards as a whole along the bottom surface of the corner fitting, and the clamping block is provided with a locally downwardly concave hole to form a reinforcing rib structure.

[0016] Preferably, a sawtooth structure extending upward is provided at the top edge of the first mounting wall; a sawtooth structure extending outward is provided at the edge of the second mounting wall away from the first mounting wall.

[0017] Preferably, the sawtooth structure includes a plurality of first inverted teeth inclined toward the outside of the corner code and a plurality of second inverted teeth inclined toward the inside of the corner code, so that the tips of the free ends of the first inverted teeth and the second inverted teeth can be respectively oriented in different lateral directions to be clamped with different inner side walls in the corner code mounting cavity of the photovoltaic frame bar.

[0018] The present utility model also discloses a photovoltaic frame, including a plurality of photovoltaic frame bars connected end to end in sequence and a corner code for connecting two adjacent photovoltaic frame bars at a corner, and the corner code is a corner code for a photovoltaic frame as described above in the content of the present utility model.

[0019] The present utility model also discloses a photovoltaic module, including a photovoltaic laminate and a photovoltaic frame for mounting the photovoltaic laminate, and the photovoltaic frame is a photovoltaic frame as described above in the content of the present utility model.

[0020] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0021] Compared with the prior art of CN217240647U, each connecting portion (such as the first connecting portion and the second connecting portion) of the corner code of the present utility model only has two mounting walls (such as the first mounting wall and the second mounting wall) that need to be mounted into the corner code mounting cavity, and the free ends of the two mounting walls are provided with inclined guiding structures (such as the first guiding piece and the second guiding piece). In this way, without the need for the connecting portion of the corner code and the corner code mounting cavity of the photovoltaic frame bar to have high dimensional processing accuracy requirements, the connecting portion of the corner code can be smoothly inserted into the corner code mounting cavity of the photovoltaic frame bar. When the connecting portion of the corner code is inserted into the corner code mounting cavity of the photovoltaic frame bar, even if the insertion angle is slightly inclined, under the action of the two guiding pieces, it can be guided and gradually corrected, so that the two mounting walls of the corner code are close to the two inner walls of the corner code mounting cavity according to the design requirements. Therefore, the assembly of the corner code of the present utility model and the photovoltaic frame bar is smoother and faster, which can improve the assembly efficiency and effectively avoid the phenomenon of bursting the glass of the photovoltaic laminate during the assembly process, so that the product yield can also be improved.

[0022] In addition, for the corner code for a photovoltaic frame of the present utility model, the sawtooth structure on the outer edge of the first mounting wall and / or the second mounting wall can greatly increase the frictional force and fastening force between the outer edge of the first mounting wall (and / or the second mounting wall) and the inside of the corner code mounting cavity; therefore, only two mounting walls of the connecting portion of the corner code can meet the requirements of firm assembly, which can simplify the structure of the corner code and reduce the raw material cost and manufacturing cost of the corner code. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1Schematic diagram of the installation structure of the photovoltaic frame bar and the corner code in a photovoltaic frame for this embodiment.

[0024] Figure 2 is Figure 1 partial enlarged view of.

[0025] Figure 3 Schematic three - dimensional structure diagram of a corner code for a photovoltaic frame in this embodiment.

[0026] Figure 4 Schematic three - dimensional structure diagram of another perspective of a corner code for a photovoltaic frame in this embodiment.

[0027] Figure 5 Front - view structure diagram of a corner code for a photovoltaic frame in this embodiment.

[0028] Figure 6 is Figure 5 partial enlarged view of the label A in.

[0029] Explanation of the reference numerals in the drawings: Photovoltaic frame bar 1; Laminating - part installation cavity 11; Corner - code installation cavity 12; Bending part 121;

[0030] Corner code 2; First connection part 21; Second connection part 22; First installation wall 23; First guiding piece 231; Second installation wall 24; Second guiding piece 241; Card slot 242; Card block 243; Concave hole 2431; Gap 25; Serrated structure 26; First reverse tooth 261; Second reverse tooth 262; Reinforcing rib 27. Detailed implementation manners

[0031] In order to make the above - mentioned objects, features and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the drawings and specific implementation manners.

[0032] Embodiment

[0033] A photovoltaic frame in this embodiment, refer to Figure 1-2 , includes a plurality of photovoltaic frame bars 1 connected end - to - end in sequence and a corner code 2 for connecting two adjacent photovoltaic frame bars 1 at the corner (as shown in Figure 1 ); wherein, the photovoltaic frame bar 1 is provided with a laminating - part installation cavity 11 for installing a photovoltaic laminating part, and a corner - code installation cavity 12 for installing the corner code 2 is further provided below the laminating - part installation cavity 11, and a bending part 121 is provided at the free end of the horizontal bottom wall of the corner - code installation cavity 12. The corner code 2 is a corner code for a photovoltaic frame as shown below in this embodiment.

[0034] A corner code for a photovoltaic frame in this embodiment, refer to Figure 2-3, including a first connecting portion 21 and a second connecting portion 22 connected at a corner. The first connecting portion 21 is used to be installed in the corner fitting installation cavity 12 of a photovoltaic frame bar 1 (such as a short frame bar made of steel) adjacent to the corner, and the second connecting portion 22 is used to be installed in the corner fitting installation cavity 12 of another photovoltaic frame bar 1 (such as a long frame bar made of steel) adjacent to the corner. In this way, the connection of two adjacent photovoltaic frame bars 1 at the corner is realized through the first connecting portion 21 and the second connecting portion 22.

[0035] Wherein, the first connecting portion 21 is provided with a first mounting wall 23 and a second mounting wall 24 connected by bending, and the second connecting portion 22 is also provided with a first mounting wall 23 and a second mounting wall 24 connected by bending; the first mounting wall 23 is vertically arranged on the side surface of the corner fitting 2, and the second mounting wall 24 is preferably arranged on the bottom surface of the corner fitting 2 along the horizontal plane. During installation, the first connecting wall is closely attached to the vertical side wall of the corner fitting installation cavity 12, and the second connecting wall is closely attached to the horizontal bottom wall of the corner fitting installation cavity 12. In this way, the installation of the first connecting portion 21 and the second connecting portion 22 in the corner fitting installation cavity 12 is realized.

[0036] Wherein, referring to Figure 2-3 , a first guiding piece 231 inclined towards the inner side of the corner fitting 2 is provided at the free end of the first mounting wall 23, and a second guiding piece 241 inclined towards the inside of the corner fitting 2 is provided at the free end of the second mounting wall 24. It should be noted that the outer side of the corner fitting 2 means: during installation, the side of the mounting wall (such as the first mounting wall 23, the second mounting wall 24) of the corner fitting 2 that is close to and attached to the inner side wall of the corner fitting installation cavity 12; and the inner side of the corner fitting 2 means: during installation, the side of the mounting wall (such as the first mounting wall 23, the second mounting wall 24) of the corner fitting 2 that is far from the inner side wall of the corner fitting installation cavity 12.

[0037] The first guiding piece 231 and the second guiding piece 241 inclined towards the inner side of the corner fitting 2 are provided. In this way, during installation, there is a certain gap between the first guiding piece 231 and the vertical side wall of the corner fitting installation cavity 12 and no friction will occur, and there is also a certain gap between the second guiding piece 241 and the horizontal bottom wall of the corner fitting installation cavity 12 and no friction will occur; this can reduce the difficulty of inserting and installing the first mounting wall 23 and the second mounting wall 24 in the corner fitting installation cavity 12, make the installation of the corner fitting 2 and the corner fitting installation cavity 12 of the photovoltaic frame more easy, and play a role of moving guidance for the installation of the first mounting wall 23 and the second mounting wall 24 in the corner fitting installation cavity 12, making the installation of the corner fitting 2 and the corner fitting installation cavity 12 smoother and faster.

[0038] Moreover, a gap 25 (such as Figure 4As shown in the figure; in this way, the free ends of the second guiding piece 241 and the first guiding piece 231 are flexible and move more freely with respect to each other, which can further reduce the difficulty of inserting and installing the first mounting wall 23 and the second mounting wall 24 into the corner fitting mounting cavity 12, making the installation of the corner fitting 2 into the corner fitting mounting cavity 12 more convenient and fast.

[0039] Specifically, referring to Figure 3 , the fixed end of the first guiding piece 231 is connected to the first mounting wall 23, and the free end of the first guiding piece 231 inclines towards the inner side of the corner fitting 2. Further, the height of the first guiding piece 231 is less than or equal to the height of the first mounting wall 23 (preferably, the height of the first guiding piece 231 is less than the height of the first mounting wall 23), and the height dimension of the first guiding piece 231 gradually decreases from its fixed end to its free end. In this way, not only is there a certain gap between the first guiding piece 231 and the vertical side wall of the corner fitting mounting cavity 12 and no friction is generated, but also there is a certain gap between the top and the top of the first guiding piece 231 and the inner wall of the corner fitting mounting cavity 12 and no friction is generated, which further makes the insertion and installation of the first mounting wall 23 into the corner fitting mounting cavity 12 smoother, more flexible, and faster.

[0040] Specifically, referring to Figure 3 , a partial position of the second mounting wall 24 on the side close to the first guiding piece 231 inclines upward to form the second guiding piece 241. The second guiding piece 241 is preferably triangular in shape, and the second guiding piece 241 is arranged on the side of the second mounting wall 24 close to the first guiding piece 231, while the side of the second mounting wall 24 far from the first guiding piece 231 still lies on the bottom surface of the corner fitting 2 arranged along the horizontal plane; in this way, not only can the insertion and installation of the second mounting wall 24 into the corner fitting mounting cavity 12 be made easier, but also the side of the second mounting wall 24 far from the first guiding piece 231 can be exactly clamped in the bent portion 121 of the corner fitting mounting cavity 12. Without changing the total length of the second mounting wall 24, shortening of the serrated portion on the second mounting wall 24 due to the setting of the second guiding piece 241 is avoided, making the installation of the corner fitting 2 and the corner fitting mounting cavity 12 more stable.

[0041] Further, referring to Figure 3 , the width of the second guiding piece 241 is less than the width of the second mounting wall 24, so as to more easily and quickly insert the second guiding piece 241 into the corner fitting mounting cavity 12 of the photovoltaic frame strip 1, further reducing the installation difficulty of the second mounting wall 24 in the corner fitting mounting cavity 12.

[0042] Among them, the first mounting wall 23 of the first connecting portion 21 and the first mounting wall 23 of the second connecting portion 22 are integrally formed by bending connection, which can make the connection between the first connecting portion 21 and the second connecting portion 22 more stable and firm, thereby enhancing the stability of the entire corner fitting 2 structure.

[0043] Wherein, the second mounting wall 24 of the first connecting portion 21 and the second mounting wall 24 of the second connecting portion 22 are clamped on the same plane. Specifically, a clamping groove or a clamping block is provided on the connecting side of the second mounting wall 24 of the first connecting portion 21, and a matching clamping block or clamping groove is provided on the corresponding connecting side of the second mounting wall 24 of the second connecting portion 22.

[0044] In an example of this embodiment, refer to Figure 3 , a clamping groove 242 is provided on the connecting side of the second mounting wall 24 of the first connecting portion 21, and a clamping block 243 matching the clamping groove 242 is provided on the corresponding connecting side of the second mounting wall 24 of the second connecting portion 22; by clamping the clamping block 243 into the clamping groove 242, the clamping of the second mounting wall 24 of the first connecting portion 21 and the second mounting wall 24 of the second connecting portion 22 can be realized.

[0045] Furthermore, the whole clamping block 243 protrudes upward along the bottom surface of the angle code 2, and the clamping block 243 is provided with a locally downward concave hole 2431 (as shown in Figure 3 ); thus, a reinforcing rib structure is formed at the clamping block 243 to strengthen the clamping portion, so as to prevent the clamping block 243 from deforming and affecting the stability of the clamping structure.

[0046] In addition, in order to improve the stability of the whole structure of the angle code 2, reinforcing ribs 27 are also provided at local positions of the first mounting wall 23 and / or the second mounting wall 24 (as shown in Figure 3 ), so as to enhance the first mounting wall 23 and / or the second mounting wall 24 to prevent deformation.

[0047] Wherein, refer to Figure 2-3 and Figure 5-6 , a serrated structure 26 for mounting into the angle code mounting cavity 12 of the photovoltaic frame strip 1 is provided on the outer edge of the first mounting wall 23 and / or the second mounting wall 24; preferably, serrated structures 26 are provided on the outer edges of both the top edge of the first mounting wall 23 and the outer edge of the second mounting wall 24. Specifically, a serrated structure 26 extending upward is provided on the top edge of the first mounting wall 23; a serrated structure 26 extending outward is provided on the edge of the second mounting wall 24 far from the first mounting wall 23.

[0048] During installation, these serrated structures 26 can greatly increase the frictional force and fastening force between the outer edge of the first installation wall 23 (such as the top edge of the first installation wall 23) and the top wall in the corner code installation cavity 12, as well as between the outer edge of the second installation wall 24 and the bending portion 121 in the corner code installation cavity 12. Therefore, for the first connecting portion 21 and the second connecting portion 22 of the corner code 2 in this embodiment, only two installation walls (i.e., the first installation wall 23 and the second installation wall 24) need to be provided, instead of setting three installation walls as in the prior art of CN217240647U. In this way, a firm installation between the corner code 2 and the photovoltaic frame strip 1 can be achieved, and neither the first connecting portion 21 nor the second connecting portion 22 needs to add a third installation wall, which can also simplify the structure of the corner code 2 and reduce its raw material cost and manufacturing cost.

[0049] Moreover, compared with the following situation in the prior art of CN217240647U: both the right corner piece and the left corner piece of the corner code have three installation walls to be installed into the corner code installation cavity, and no guiding structure is provided on their side installation walls. For each connecting portion (such as the first connecting portion 21 or the first connecting portion 21) of the corner code 2 in this embodiment, only two installation walls (such as the first installation wall 23 and the second installation wall 24) need to be installed into the corner code installation cavity 12, and guiding structures (such as the first guiding piece 231 and the second guiding piece 241) are provided at the free ends of the two installation walls. Therefore, the installation of the corner code 2 and the photovoltaic frame strip 1 in this embodiment is easier, which is more conducive to the quick and convenient assembly of the corner code 2 and the photovoltaic frame strip 1.

[0050] Furthermore, referring to Figure 5-6 , the serrated structure 26 includes a number of first reverse teeth 261 inclined towards the outside of the corner code 2 (as shown in Figure 6 ) and a number of second reverse teeth 262 inclined towards the inside of the corner code 2 (as shown in Figure 6 ), so that the tips of the free ends of the first reverse teeth 261 and the second reverse teeth 262 can be respectively engaged with different inner walls in the corner code installation cavity 12 of the photovoltaic frame strip 1 in different side directions. Therefore, the tips of the first reverse teeth 261 and the second reverse teeth 262 in different side directions towards the corner code 2 can be respectively stably and firmly engaged with the corresponding different inner walls in the corner code installation cavity 12. In this way, even if the structure of the inside or the inner wall of the corner code installation cavity 12 is not made very precisely and there are certain dimensional errors or deviations, it will not affect the installation stability and firmness between the serrated structure 26 and the inner wall of the corner code installation cavity 12. Therefore, not only can the serrated structure 26 be stably and firmly installed with the inner wall of the corner code installation cavity 12, but also the processing precision requirements for the installation structure of the corner code 2 and the photovoltaic frame strip 1 can be reduced, the processing qualification rate can be improved, and the processing cost can be reduced.

[0051] A photovoltaic module according to this embodiment includes a photovoltaic laminate and a photovoltaic frame for mounting the photovoltaic laminate, and the photovoltaic frame is the photovoltaic frame described above in this embodiment.

[0052] Although the preferred embodiments of the embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0053] The technical solutions provided by the present invention have been introduced in detail above. Specific examples are used in this article to elaborate on the principles and implementation manners of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A photovoltaic frame angle code, characterized in that: It comprises a first connecting portion and a second connecting portion connected at an angle, the first connecting portion and the second connecting portion are both provided with a first mounting wall and a second mounting wall connected by a bending, and the outer edge of the first mounting wall and / or the second mounting wall is provided with a sawtooth structure for mounting in a corner code mounting cavity of a photovoltaic frame bar; The free ends of the first mounting wall and the second mounting wall are respectively provided with a first guide piece and a second guide piece inclined toward the inner side of the angle code, so that the first mounting wall and the second mounting wall can be inserted and installed into the angle code installation cavity of the photovoltaic frame bar through the first guide piece and the second guide piece.

2. The photovoltaic frame angle code according to claim 1, characterized in that: The first mounting wall is vertically arranged on the side of the angle code, the fixed end of the first guide piece is connected to the first mounting wall, and the free end of the first guide piece is inclined toward the inner side of the angle code.

3. The photovoltaic frame angle code according to claim 2, characterized in that: The height of the first guide piece is less than or equal to the height of the first mounting wall, and the height dimension of the first guide piece gradually decreases from the fixed end to the free end thereof.

4. The photovoltaic frame angle code according to claim 1, characterized in that: The second mounting wall is arranged on the bottom surface of the angle code, and a local position of the second mounting wall close to the first guide piece is inclined upward to form the second guide piece.

5. The photovoltaic frame angle code according to claim 4, characterized in that: The width of the second guide piece is smaller than the width of the second installation wall, so that the second guide piece can be inserted into the corner code installation cavity of the photovoltaic frame bar.

6. The photovoltaic frame angle code according to claim 1, characterized in that: A gap is provided between the second guide piece and the first guide piece to separate the free ends of the second guide piece and the free ends of the first guide piece from each other.

7. The photovoltaic frame angle code according to claim 1, characterized in that: The first mounting wall of the first connecting part and the first mounting wall of the second connecting part are an integrated structure formed by bending and connecting; the second mounting wall of the first connecting part and the second mounting wall of the second connecting part are clamped on the same plane.

8. The photovoltaic frame angle code according to claim 7, characterized in that: A slot or a block is provided on the connection side of the second mounting wall of the first connecting portion, and a matching block or a slot is provided on the corresponding connection side of the second mounting wall of the second connecting portion.

9. The photovoltaic frame angle code according to claim 8, characterized in that: The clamping block as a whole protrudes upward along the bottom surface of the angle code, and the clamping block is provided with a concave hole which is partially concave downward to form a reinforcing rib structure.

10. A photovoltaic frame angle code according to any one of claims 1 to 9, characterized in that: The top edge of the first installation wall is provided with the sawtooth structure extending upward; the edge of the second installation wall away from the first installation wall is provided with the sawtooth structure extending outward.

11. A photovoltaic frame angle code according to any one of claims 1 to 9, characterized in that: The sawtooth structure includes a plurality of first inverted teeth inclined toward the outer side of the angle code and a plurality of second inverted teeth inclined toward the inner side of the angle code, so that the tooth tips of the free ends of the first inverted teeth and the second inverted teeth can face different side directions respectively to engage with different inner walls in the angle code installation cavity of the photovoltaic frame bar.

12. A photovoltaic frame, comprising a plurality of photovoltaic frame strips connected end to end in sequence and a corner code for connecting two photovoltaic frame strips adjacent to each other at a corner, characterized in that: The angle code is an angle code for a photovoltaic frame as described in any one of claims 1-11.

13. A photovoltaic module, comprising a photovoltaic laminate and a photovoltaic frame for mounting the photovoltaic laminate, characterized in that: The photovoltaic frame is a photovoltaic frame as described in claim 12.

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