Photovoltaic frame connecting piece

The photovoltaic frame connector, designed with a mortise and tenon structure, uses a push-in operation and snap-fit ​​method, which solves the problems of inconvenient installation and easy loosening of existing connectors. It achieves efficient and stable photovoltaic frame connection, enhances overall strength and prevents cracking, and is suitable for a variety of composite profiles.

CN224178121UActive Publication Date: 2026-04-28JIANGSU WORLDLIGHT NEW MATERIAL CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU WORLDLIGHT NEW MATERIAL CO LTD
Filing Date
2025-03-25
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing photovoltaic frame connectors have problems such as insufficient connection strength, easy loosening, need for glue or high precision requirements during installation, and are prone to deformation and cracking, making it difficult to meet the requirements of efficient installation, high stability and high safety.

Method used

The photovoltaic frame connector, designed with a mortise and tenon structure, connects the main body and the embedded part through a push-in operation. It uses a snap-fit ​​method with locking blocks and limiting blocks, combined with a flow channel design, to achieve a tight connection without glue, enhancing overall strength and preventing deformation.

Benefits of technology

It achieves an efficient and simple installation process, improves the overall strength and stability of the photovoltaic frame, prevents cracking, is suitable for a variety of composite profiles, and ensures high safety and durability of the connectors.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224178121U_ABST
    Figure CN224178121U_ABST
Patent Text Reader

Abstract

The utility model discloses a photovoltaic frame connecting piece, and relates to the technical field of photovoltaic modules. Comprising a body part, a connecting strip and an embedded part, the body part comprises two sleeve bodies, the two sleeve bodies are vertically distributed, a containing cavity is formed in each sleeve body, and an inner groove is formed in the inner wall of each containing cavity; the embedded part comprises an embedded part, the embedded part is located in the containing cavity, the embedded part is connected with the inner wall of the containing cavity through a connecting strip, and the embedded part, the connecting strip and the containing cavity are of an integrated structure. The connecting piece adopts the mortise and tenon joint structure design, the body part and the embedded part are installed through push type operation, operation is easy and convenient, after installation is completed, the body part of the connecting piece and the photovoltaic frame profile are connected into a whole, the overall strength is high, the connecting piece is effectively prevented from deforming when being stressed, and the connecting piece is not prone to deformation due to the plasticity of the connecting piece. Therefore, the connecting piece can be suitable for various composite profiles with felts, without felts and the like, and can meet various use requirements.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic module technology, and in particular relates to a photovoltaic frame connector. Background Technology

[0002] In the rapid development of the photovoltaic industry, photovoltaic connectors, as key components to ensure the structural stability of photovoltaic modules, directly affect the operating efficiency and service life of the entire photovoltaic system.

[0003] Currently, photovoltaic frames on the market are typically connected using either adhesive-applied or sleeve-type connectors. Adhesive-applied connectors require installers with high levels of skill and experience in applying adhesive; uneven application can affect the strength and sealing of the connection, and the application process takes time, hindering large-scale applications. Sleeve-type connectors rely primarily on friction between the sleeve and the profile, along with the adhesive force of a small amount of glue, to achieve the connection. This requires high precision in the profile; insufficient dimensional accuracy can lead to a loose fit between the connector and the profile, affecting the reliability of the connection. In comparison, tenon-and-mortise connectors are more economical. However, existing tenon-and-mortise connectors increase the risk of deformation in felt-free (all-yarn) corner bracket composite profiles during use, potentially causing cracking in the photovoltaic profiles.

[0004] To address this, a photovoltaic frame connector and its connection method are proposed to meet the photovoltaic industry's requirements for efficient installation, high stability, and high safety of the connector. Utility Model Content

[0005] The purpose of this invention is to address the existing problems by providing a photovoltaic frame connector that solves the technical issues raised in the background art.

[0006] This utility model is achieved through the following technical solution: a photovoltaic frame connector, comprising a body, a connecting strip, and an embedded part;

[0007] The main body includes two sleeves, which are arranged vertically. Each sleeve has a receiving cavity, and the inner wall of the receiving cavity has an inner groove.

[0008] The embedded part includes an embedded component located inside the receiving cavity. The embedded component is connected to the inner wall of the receiving cavity via a connecting strip. The embedded component, the connecting strip, and the receiving cavity are an integrated structure.

[0009] As a preferred embodiment of the photovoltaic frame connector of this utility model, the insert is provided with an end protrusion, which is used to engage with the inner groove.

[0010] As a preferred embodiment of the photovoltaic frame connector of this utility model, the outer wall of the insert is fixedly connected with a locking block for engaging with the inner wall slot of the photovoltaic frame profile.

[0011] As a preferred embodiment of the photovoltaic frame connector of this utility model, the card block has a beveled surface.

[0012] As a preferred embodiment of the photovoltaic frame connector of this utility model, the main body is used to connect with a straight-cut photovoltaic frame profile or a beveled photovoltaic frame profile. The main body for the straight-cut photovoltaic frame profile consists of a connecting block and two sleeves. The connecting block has a right-angle turning structure and is located between the two sleeves. The two sleeves are connected by the connecting block.

[0013] As a preferred embodiment of the photovoltaic frame connector of this utility model, the connecting block is provided with a flow guide groove.

[0014] As a preferred embodiment of the photovoltaic frame connector of this utility model, the embedded part is further provided with a tail protrusion.

[0015] As a preferred embodiment of the photovoltaic frame connector of this utility model, the sleeve body is provided with a notch, and the protruding outer wall at the tail is used to engage with the inner wall of the notch.

[0016] As a preferred embodiment of the photovoltaic frame connector of this utility model, the embedded part is provided with a limiting block for abutting against the end of the photovoltaic frame profile.

[0017] This invention has the following advantages over the prior art:

[0018] 1. This utility model provides a photovoltaic frame connector. The connector adopts a mortise and tenon structure design, and the main body and the embedded part are installed by pushing in, which is simple to operate. After installation, the main body of the connector and the photovoltaic frame profile are integrated into one, with high overall strength, effectively preventing deformation of the connector under stress. Utilizing the plasticity of this connector, when quickly connecting feltless composite photovoltaic frames together, it can not only improve the overall strength of the feltless composite photovoltaic frames, but also effectively prevent the problem of cracking of the feltless composite photovoltaic frames. This connector can be used for various composite profiles such as felted and feltless ones, and can simultaneously meet the requirements of efficient installation, high stability and high safety.

[0019] 2. This utility model provides a photovoltaic frame connector. In this connector, the inner sleeve has a beveled surface on the locking block. The bevel is thinner closer to the opening of the sleeve, which serves as a guide and allows the locking block to be inserted more smoothly into the slot of the photovoltaic frame profile. By using a snap-fit ​​method, the connector can be tightly connected to the photovoltaic frame profile without the need for glue. The process is simple and the overall strength is high.

[0020] 3. This utility model provides a photovoltaic frame connector. The connecting block of this connector is provided with a drainage groove. Using this drainage groove, rainwater on the photovoltaic panel can be drained, preventing water accumulation on the surface of the panel and avoiding problems such as reduced power generation efficiency and corrosion of the solar cells caused by water accumulation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the obliquely cut photovoltaic frame profile connector of this utility model in its uninstalled state;

[0023] Figure 3 This is a schematic diagram of the installation state structure of the beveled photovoltaic frame profile connector of this utility model;

[0024] Figure 4 This is a schematic diagram of the oblique-cut photovoltaic frame profile structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0026] Figure 6 This is a schematic diagram of the straight-cut photovoltaic frame profile connector of this utility model in its uninstalled state;

[0027] Figure 7 This is a schematic diagram of the installation state structure of the straight-cut photovoltaic frame profile connector of this utility model;

[0028] Figure 8 This is a top view of the straight-cut photovoltaic frame profile connector of this utility model in its uninstalled state;

[0029] Figure 9 This is a schematic diagram of the straight-cut photovoltaic frame profile structure of this utility model.

[0030] In the figure: 100, main body; 1001, sleeve; 1002, receiving cavity; 1003, inner groove; 1004, notch; 110, connecting strip; 120, embedded part; 1201, embedded part; 1202, limiting block; 1203, end protrusion; 1204, tail protrusion; 130, locking block; 1301, beveled surface. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] This connector is used to connect photovoltaic frame profiles. Existing photovoltaic frame profiles typically include two types: straight-cut photovoltaic frame profiles and beveled photovoltaic frame profiles.

[0033] Example 1:

[0034] Please see Figure 1-4 As shown, this utility model provides a technical solution: a photovoltaic frame connector, including a body part 100, a connecting strip 110 and an embedded part 120;

[0035] The main body 100 includes two sleeves 1001, which are vertically distributed. Each sleeve 1001 has a receiving cavity 1002, and the inner wall of the receiving cavity 1002 has an inner groove 1003.

[0036] The embedded part 120 includes an embedded member 1201, which is located inside the receiving cavity 1002. The embedded member 1201 is connected to the inner wall of the receiving cavity 1002 through a connecting strip 110. The embedded member 1201, the connecting strip 110 and the receiving cavity 1002 are an integrated structure. The connecting strip 110 can break under force, so that the embedded member 1201 is inserted into the sleeve 1001, thereby enhancing the plasticity and overall strength of the connector.

[0037] The insert 1201 is provided with an end protrusion 1203, which is used to engage with the inner groove 1003. The insert 1201 is also provided with a tail protrusion 1204. The sleeve 1001 is provided with a notch 1004, and the outer wall of the tail protrusion 1204 is used to engage with the inner wall of the notch 1004.

[0038] The outer wall of the insert 1201 is fixedly connected with a locking block 130 for engaging with the inner wall slot of the photovoltaic frame profile. The locking block 130 has a beveled surface 1301. It should be noted that the closer the beveled surface 1301 is to the end of the tail protrusion 1204, the thinner its cut surface becomes, which serves as a guide to facilitate the smooth insertion of the locking block 130 into the slot of the photovoltaic frame profile. In addition, the position of the slot on the inner wall of the photovoltaic frame profile corresponds to the position of the locking block 130 when the sleeve 1001 is fully inserted into the photovoltaic frame profile.

[0039] The embedded part 1201 is provided with a limiting block 1202 for abutting against the end of the photovoltaic frame profile; correspondingly, the end of the photovoltaic frame profile has a limiting groove for matching the limiting block 1202, so as to ensure a stable connection between the connector and the photovoltaic frame profile.

[0040] The connector in this embodiment is suitable for beveled photovoltaic frame profiles. In use, the sleeve 1001 is aligned with the cavity of the beveled photovoltaic frame profile and inserted. During this process, the connecting strip 110 breaks under force, causing the insert 1201 to be inserted into the receiving cavity 1002 of the sleeve 1001. The notch of the photovoltaic frame profile abuts against the limiting block 1202 on the body part 100, and the locking block 130 on the body part 100 is inserted into the locking groove of the photovoltaic frame profile, thereby connecting the two photovoltaic frame profiles together through the connector.

[0041] In summary, this connector adopts a mortise and tenon structure design, and is installed by pushing the main body 100 and the embedded part 120 together. The operation is simple. After installation, the main body 100 of the connector is integrated with the photovoltaic frame profile. The main body 100 is locked inside the cavity of the photovoltaic frame profile and is in an immobile state under the action of the locking block 130. This enhances the strength and load-bearing capacity of the end of the photovoltaic frame profile and effectively prevents the connector from deforming under stress. Utilizing the plasticity of this connector, it can quickly connect feltless (full yarn) composite photovoltaic frames. At the same time, it not only improves the overall strength of the feltless (full yarn) composite photovoltaic frame, but also effectively prevents the problem of cracking of the feltless (full yarn) composite photovoltaic frame. This makes this connector applicable to various composite profiles such as felted and feltless (full yarn).

[0042] Example 2:

[0043] Please see Figure 5-9 As shown, based on Embodiment 1, this utility model provides a technical solution: a photovoltaic frame connector, including a body part 100, a connecting strip 110 and an embedded part 120;

[0044] The main body 100 includes two sleeves 1001, which are vertically distributed. Each sleeve 1001 has a receiving cavity 1002, and the inner wall of the receiving cavity 1002 has an inner groove 1003.

[0045] The embedded part 120 includes an embedded member 1201, which is located inside the receiving cavity 1002. The embedded member 1201 is connected to the inner wall of the receiving cavity 1002 through a connecting strip 110. The embedded member 1201, the connecting strip 110 and the receiving cavity 1002 are an integrated structure.

[0046] The insert 1201 is provided with an end protrusion 1203, which is used to engage with the inner groove 1003. The insert 1201 is also provided with a tail protrusion 1204. The sleeve 1001 is provided with a notch 1004, and the outer wall of the tail protrusion 1204 is used to engage with the inner wall of the notch 1004.

[0047] The outer wall of the insert 1201 is fixedly connected with a locking block 130 for engaging with the inner wall slot of the photovoltaic frame profile. The locking block 130 has a beveled surface 1301. It should be noted that the closer the beveled surface 1301 is to the end of the protrusion 1204, the thinner its surface becomes, which serves as a guide to facilitate the locking block 130 being smoothly inserted into the slot of the photovoltaic frame profile 2 during use. In addition, the position of the slot on the inner wall of the photovoltaic frame profile corresponds to the position of the locking block 130 when the sleeve 1001 is fully inserted into the photovoltaic frame profile.

[0048] The embedded part 1201 is provided with a limiting block 1202 for abutting against the end of the photovoltaic frame profile; correspondingly, the end of the photovoltaic frame profile has a limiting groove for matching the limiting block 1202, so as to ensure a stable connection between the connector and the photovoltaic frame profile.

[0049] The main body 100 is used to connect with straight-cut photovoltaic frame profiles or beveled photovoltaic frame profiles. The main body 100 for straight-cut photovoltaic frame profiles consists of a connecting block and two sleeves 1001. The connecting block has a right-angle turn structure and is located between the two sleeves 1001. The two sleeves 1001 are connected by the connecting block. A guide groove is provided on the connecting block. When the straight-cut photovoltaic frame profiles are connected together by the connector, the connecting block is located at the corner of the two photovoltaic frame profiles and plays a protective role for the connector. The main body 100 of the connector consists of two sleeves 1001 and a connecting block that connects them together. A guide groove is provided on the upper surface of the connecting block. The guide groove can drain rainwater on the photovoltaic panel in time during rainy weather to prevent water accumulation on the surface of the panel.

[0050] The connector in this embodiment is suitable for use in the application of straight-cut photovoltaic frame profiles. In use, the sleeve 1001 is aligned with the cavity of the oblique-cut photovoltaic frame profile and inserted. The connecting strip 110 breaks under force, causing the insert 1201 to be inserted into the receiving cavity 1002 of the sleeve 1001. The notch of the photovoltaic frame profile abuts against the limiting block 1202 on the body part 100. The locking block 130 on the body part 100 is inserted into the locking groove of the photovoltaic frame profile, connecting the two photovoltaic frame profiles together through the connector, thereby enhancing the plasticity and overall strength of the connector.

[0051] In summary, this connector adopts a mortise and tenon structure design, and is installed by pushing the main body 100 and the embedded part 120 together. The operation is simple. After installation, the main body 100 of the connector is integrated with the photovoltaic frame profile. The main body 100 is locked inside the cavity of the photovoltaic frame profile and is in an immobile state under the action of the locking block 130. This enhances the strength and load-bearing capacity of the end of the photovoltaic frame profile and effectively prevents the connector from deforming under stress. Utilizing the plasticity of this connector, it can quickly connect feltless (full yarn) composite photovoltaic frames. At the same time, it not only improves the overall strength of the feltless (full yarn) composite photovoltaic frame, but also effectively prevents the problem of cracking of the feltless (full yarn) composite photovoltaic frame. This makes this connector applicable to various composite profiles such as felted and feltless (full yarn).

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic frame connector, characterized in that: It includes a main body (100), a connecting strip (110), and an embedded part (120). The main body (100) includes two sleeves (1001), and the two sleeves (1001) are vertically distributed. Each sleeve (1001) is provided with a receiving cavity (1002), and the inner wall of the receiving cavity (1002) is provided with an inner groove (1003). The embedded part (120) includes an embedded member (1201), which is located inside the receiving cavity (1002). The embedded member (1201) is connected to the inner wall of the receiving cavity (1002) through a connecting strip (110). The embedded member (1201), the connecting strip (110) and the receiving cavity (1002) are an integrated structure.

2. The photovoltaic frame connector according to claim 1, characterized in that: The insert (1201) has an end protrusion (1203) for engaging with the inner groove (1003).

3. A photovoltaic frame connector according to claim 2, characterized in that: The outer wall of the insert (1201) is fixedly connected with a locking block (130) for engaging with the inner wall slot of the photovoltaic frame profile.

4. A photovoltaic frame connector according to claim 3, characterized in that: The card block (130) has a beveled surface (1301).

5. A photovoltaic frame connector according to claim 1, characterized in that: The main body (100) is used to connect with a straight-cut photovoltaic frame profile or a beveled photovoltaic frame profile. The main body (100) used for the straight-cut photovoltaic frame profile consists of a connecting block and two sleeves (1001). The connecting block is a right-angle turning structure and is located between the two sleeves (1001). The two sleeves (1001) are connected by the connecting block.

6. A photovoltaic frame connector according to claim 5, characterized in that: The connecting block is provided with a flow guide groove.

7. A photovoltaic frame connector according to claim 1, characterized in that: The insert (1201) is also provided with a tail protrusion (1204).

8. A photovoltaic frame connector according to claim 7, characterized in that: The sleeve (1001) has a notch (1004), and the outer wall of the tail protrusion (1204) is used to engage with the inner wall of the notch (1004).

9. A photovoltaic frame connector according to claim 1, characterized in that: The insert (1201) is provided with a limiting block (1202) for abutting against the end of the photovoltaic frame profile.