Photovoltaic connector

Abstract

The utility model relates to the field of photovoltaic technology, in particular to a photovoltaic connector. The utility model provides a photovoltaic connector which comprises a body and a connecting piece, the connecting piece is installed on the body through a tool, a guide groove and a limiting groove are formed in the connecting piece, and the sectional area of the guide groove is gradually reduced in the direction close to the limiting groove. Due to the fact that the sectional area of the opening of the guide groove is large and the side wall of the guide groove inclines towards the direction of the limiting groove, a tool can conveniently enter the limiting groove along the guide groove, installation of a connecting piece is convenient, due to the design of the guide groove, the tool can still be easily matched with the connecting piece to work when the sight is poor, blind screwing is achieved, and the operation difficulty can be reduced.

Description

A photovoltaic connector Technical Field

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

[0002] In the electrical interconnection system of photovoltaic (PV) modules, the modules are typically connected electrically and mechanically via PV connectors. Both the male and female heads of the PV connectors require nuts for secure connection to the PV modules. During installation, tightening is performed using tools such as threaded insert wrenches, but the positioning of the tooling and nuts is challenging, increasing the overall installation difficulty. Summary of the Invention

[0003] This application provides a photovoltaic connector, which includes at least one body and at least one connector, wherein the connector is provided with a guide groove and a limiting groove that are interconnected, and the cross-sectional area of ​​the guide groove gradually decreases along the direction close to the limiting groove.

[0004] In this solution, when the tooling and connector are engaged, the cross-sectional area of ​​the guide groove gradually decreases along the direction close to the limiting groove, i.e., the side wall of the guide groove is inclined. After the tooling extends into the guide groove, it abuts against the side wall of the guide groove and can move along the side wall of the guide groove towards the limiting groove. The guide groove guides the tooling as it extends into the limiting groove, making it easier for the tooling and connector to engage. It also reduces the collision and wear on the main body caused by the difficulty in engaging the tooling and connector, thus improving the service life of the photovoltaic connector. Furthermore, in working conditions with poor or no visibility, the tooling is still relatively easy to engage with the connector due to the presence of the guide groove, achieving the effect of blind tightening.

[0005] In one possible design, the number of limiting grooves is 2 to 12, and each limiting groove is spaced apart along the circumference of the connector, and the guide groove is connected to the corresponding limiting groove.

[0006] In this solution, when the number of limiting grooves is too small, such as one, only one limiting groove mates with the tooling. This single limiting groove leads to an imbalance of forces between the connector and the tooling, easily causing stress concentration and damage to the tooling or connector, affecting production efficiency and service life. Furthermore, the limited contact area and contact points make driving the connector difficult, impacting installation efficiency. Conversely, when the number of limiting grooves is too large, the spacing between adjacent grooves is too small, resulting in insufficient wall thickness of the connector and lower mechanical strength, as well as increased manufacturing difficulty. This solution limits the number of limiting grooves to 2 to 12, ensuring sufficient spacing between adjacent grooves, strong wall thickness to prevent deformation, and dispersing the force contact points to reduce stress concentration and damage to the connector. The moderate contact area facilitates driving and has minimal impact on the connector wall thickness, extending its service life while maintaining structural strength. The guide groove is connected to the corresponding limiting groove, allowing the tooling to enter the corresponding limiting groove through the guide groove, which facilitates installation and improves the installation efficiency of the connector and the body.

[0007] In one possible design, the depth of the limiting groove is less than the thickness of the connector along its radial direction.

[0008] In this design, the limiting groove does not penetrate the sidewall of the connector along its radial direction. A continuous material layer is maintained at the bottom of the limiting groove, providing support to the sidewall and preventing cracks or deformation. Furthermore, the continuous material layer at the bottom of the limiting groove prevents direct contact and friction between the tooling and the internal body of the connector, thus avoiding resistance to rotation. Simultaneously, the continuous material layer also creates a seal, preventing leakage of external media. This design ensures the functionality of the connector while providing sufficient structural strength, improving its stability and reliability.

[0009] In one possible design, the length d1 of the limiting groove satisfies 12mm≤d1≤16mm, the width d2 satisfies 4.5mm≤d2≤5.5mm, and the depth d3 satisfies 0.9mm≤d3≤1.3mm.

[0010] In this design, when the length d1 of the limiting groove is too small, the contact area between the limiting groove and the tooling is too small. The force exerted by the tooling on the limiting groove is concentrated in this small area, causing local stress to exceed the elastic limit of the material and making it prone to cracking. When the length d1 of the limiting groove is too large, the extension area of ​​the limiting groove is too large, occupying too much area of ​​the connector's sidewall, resulting in insufficient overall wall thickness of the connector, weakening the strength of the connector's sidewall, and increasing the risk of connector deformation. In this design, d1 is limited to between 12mm and 16mm. This ensures sufficient contact area to transfer torque, reducing the possibility of stress concentration, while the remaining wall thickness ensures sufficient strength of the connector, reducing the possibility of connector deformation.

[0011] When the width d2 of the limiting groove is too small, the width of the tooling portion extending into the limiting groove is also too small, increasing the difficulty of the tooling entering the limiting groove and easily causing surface scratches. Furthermore, the insufficient width of the tooling portion mating with the limiting groove reduces its strength, making it prone to breakage or deformation when transmitting torque, thus reducing production efficiency. When the width d2 of the limiting groove is too large, the distance between adjacent limiting grooves decreases, meaning the circumferential thickness of the sidewalls between adjacent limiting grooves is thinner, reducing the effective support provided and making them prone to deformation under torque. In this solution, the width d2 of the limiting groove is limited to between 4.5mm and 5.5mm. This ensures smooth entry of the tooling into the limiting groove while maintaining sufficient sidewall thickness between adjacent limiting grooves to guarantee the strength of the connector, thus improving the overall reliability of the connector structure.

[0012] When the depth d3 of the limiting groove is too small, the sidewall area of ​​the limiting groove is too thin, resulting in a small contact area between the tooling and the limiting groove. This leads to a larger torque per unit area during installation, making stress concentration more likely and causing damage to the connector. Conversely, when the depth d3 of the limiting groove is too large, the remaining thickness of the connector at the limiting groove is insufficient, making it prone to cracking under external forces. This design limits the depth d3 of the limiting groove to between 0.9mm and 1.3mm. This ensures sufficient support area for the sidewall of the limiting groove, reducing the risk of stress concentration, while also providing sufficient thickness for the connector at the limiting groove, improving the structural stability and reliability of the connector during use.

[0013] In one possible design, the body includes a limiting section and a connecting section. The connecting section is provided with a first serration, and the connector is provided with a second serration. When the connector is connected to the body, the connector can rotate relative to the body in a first direction so that the connector can move in a direction closer to the body.

[0014] The first saw tooth is inclined along the first direction, and the second saw tooth is inclined along a second direction opposite to the first direction;

[0015] The first and second saw teeth cooperate to restrict the connector from rotating relative to the body in a second direction.

[0016] In this design, both the first and second serrations are inclined in opposite directions. This ensures that when the connector is fitted onto the body, its rotation in the second direction is hindered by the first serration on the connecting section, meaning the connector can only rotate in the first direction. This design allows for blind-tightening of the connector, making it easy to install even in poorly visible locations. Furthermore, the design of the first and second serrations, which restricts rotation to the first direction, also prevents the connector from falling off during long-term use, thus improving the reliability of the connection.

[0017] In one possible design, the outer perimeter of the connecting segment is a, the inner perimeter of the connector is b, the total length of the first sawtooth is 20% × a to 50% × a, and the total length of the second sawtooth is b or b.

[0018] The total length of the first saw tooth is a, and the total length of the second saw tooth is 20% × b to 50% × b.

[0019] In this design, when the total length of the saw teeth is too small, the effective contact area is too small, resulting in insufficient meshing area and poor resistance to torsion. Under large torques, interface slippage or cracks are prone to occur. When the total length of the saw teeth is too large, the large mating area requires excessively high machining precision, making machining more difficult and increasing costs. An excessively large mating area also results in greater friction at the meshing point, requiring higher driving torque, increasing effort, and hindering the installation of connectors. Furthermore, excessive cutting of the connector or body's base weakens its overall strength. This design limits the saw teeth to a circumference ratio of 20% to 50%, ensuring sufficient meshing area to distribute contact stress, preventing interface slippage or cracks caused by localized overload. It is also easier to machine, requires less driving effort, facilitates installation, and ensures sufficient overall strength for the connector or body's base.

[0020] In one possible design, the first tooth includes at least a first tooth portion and a second tooth portion, the first tooth portion and the second tooth portion being located on opposite sides of the connecting segment along the radial direction of the connecting segment.

[0021] In this design, the first and second teeth, which are arranged opposite to each other, can distribute the assembly load radially to both sides of the tooth surface, making the overall stress on the body more uniform. This helps to avoid local deformation caused by stress concentration on one side and improves the torsional resistance of the connecting section.

[0022] In one possible design, the connector further includes a notch that extends through the connector radially.

[0023] In this design, a notch is provided in the radial direction of the connector. When the connector is subjected to torsional torque, the notch can release stress, preventing the connector from breaking during assembly and improving the strength and service life of the connector.

[0024] In one possible design, the number of notches is between two and eight.

[0025] In this design, if the number of notches is too small, the stress release capability is poor, and stress concentration can easily occur, causing damage to the connector. If the number of notches is too large, there are too many openings on the sidewalls of the connector, which weakens the strength and support of the remaining substrate, making it prone to breakage under load and affecting the reliability of the connector connection. Limiting the number of notches to 2 to 8 notches can preserve sufficient connector substrate structure to maintain overall rigidity while effectively releasing stress, ensuring a stable and reliable connection between the connector and the body, and improving the service life of the photovoltaic connector.

[0026] In one possible design, the photovoltaic connector includes two bodies and two connectors, the two bodies being a first body and a second body, and the two connectors being a first connector and a second connector, the first connector being sleeved with the first body, the second connector being sleeved with the second body, and the first body being able to be plugged into the second body.

[0027] In this solution, the connection method facilitates the connection between the main body and different components, and then interconnects with each other. The installation method is simple and efficient, improving the installation efficiency of photovoltaic connectors.

[0028] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0029] Figure 1 is an exploded view of the photovoltaic connector provided in this application in a specific embodiment;

[0030] Figure 2 is a schematic diagram of the assembled structure of the photovoltaic connector in Figure 1;

[0031] Figure 3 is a schematic diagram of the structure when the tooling and the connecting piece are engaged with the guide groove in a specific embodiment;

[0032] Figure 4 is a schematic diagram of the structure when the tooling and the connecting part in Figure 3 are fitted together with the limiting groove.

[0033] Figure 5 is a structural schematic diagram of the connector in Figure 1;

[0034] Figure 6 is a front view of the connector in Figure 1;

[0035] Figure 7 is a cross-sectional view of the connector in Figure 6;

[0036] Figure 8 is a cross-sectional view of the connector assembled with the body;

[0037] Figure 9 is a schematic diagram of the structure of the first body in Figure 1;

[0038] Figure 10 is a schematic diagram of the structure after the first body and the first connector are assembled;

[0039] Figure 11 is a schematic diagram of the structure of the second body in Figure 1;

[0040] Figure 12 is a schematic diagram of the structure after the second body and the second connector are assembled.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1-Connector;

[0043] 11-First connector;

[0044] 12-Second connector;

[0045] 13-Guide groove;

[0046] 14-Limiting groove;

[0047] 15-Notch;

[0048] 16 - Second serration;

[0049] 2-Ontology;

[0050] 21-First ontology;

[0051] 22-Second Body;

[0052] 23-Limit Segment;

[0053] 24-Connecting segment;

[0054] 241 - First sawtooth;

[0055] 2411 - First tooth;

[0056] 2412 - Second tooth;

[0057] 3-Tooling.

[0058] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0059] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0060] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0061] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0062] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0063] As shown in Figures 1 and 2, this application embodiment provides a photovoltaic connector that can interconnect various components within a photovoltaic power generation system, such as modules, combiner boxes, controllers, and inverters. It provides a safe and reliable connection, reduces power loss, and maintains the overall system efficiency.

[0064] Specifically, referring to Figures 1, 2, 3, and 4, the photovoltaic connector includes at least one body 2 and at least one connector 1. The body 2 serves as a connector, allowing photovoltaic modules to connect to each other and transmit signals or current. The connector 1 is fitted onto the outside of the body 2. During installation, the connector 1 needs to be fitted onto the outside of the body 2 using a fixture 3. The connector 1 is provided with an interconnected guide groove 13 and a limiting groove 14. The guide groove 13 guides the fixture 3, and the limiting groove 14 accommodates the fixture 3. The cross-sectional area of ​​the guide groove 13 gradually decreases along the direction close to the limiting groove 14.

[0065] When the tooling 3 and the connector 1 are engaged, the cross-sectional area of ​​the guide groove 13 gradually decreases along the direction close to the limiting groove 14, that is, the side wall of the guide groove 13 is inclined. After the tooling 3 extends into the guide groove 13, it abuts against the side wall of the guide groove 13 and can move along the side wall of the guide groove 13 towards the limiting groove 14. The guide groove 13 guides the tooling 3 as it extends into the limiting groove 14, which facilitates the engagement of the tooling 3 and the connector 1. It can also reduce the collision and wear on the body 2 caused by the difficulty in engaging the tooling 3 and the connector 1, and improve the service life of the photovoltaic connector. In working conditions with poor visibility or no visibility, the presence of the guide groove 13 can reduce the difficulty of engaging the tooling 3 and the connector 1, and blind tightening can be achieved.

[0066] The inner surface of the connector 1 and the outer surface of the body 2 are threaded, and the connector 1 and the body 2 are tightened and fixed by the threads.

[0067] The guide surface can be a slope, a circular arc, etc., and the shape of the guide surface is not limited in the embodiments of this application.

[0068] In some embodiments, as shown in Figures 5 and 6, the number of limiting grooves 14 is 2 to 12, and each limiting groove 14 is arranged at intervals along the circumference of the connector 1. The guide groove 13 is connected to the corresponding limiting groove 14.

[0069] In this embodiment, when the number of limiting grooves 14 is too small, for example, only one limiting groove 14 cooperates with the tooling 3. A single limiting groove 14 causes an imbalance in the force between the connector 1 and the tooling 3, which easily leads to stress concentration and damage to the tooling 3 or the connector 1, affecting production efficiency and service life. Moreover, due to the insufficient contact area and contact points, the drive of the connector 1 is difficult, affecting the installation efficiency of the connector 1. On the other hand, when the number of limiting grooves 14 is too large, the spacing between adjacent limiting grooves 14 is too small, and the wall thickness of the connector 1 is insufficient, resulting in low mechanical strength of the connector 1 and greater manufacturing difficulty. In this solution, the number of limiting grooves 14 is limited to 2 to 12, which ensures that the adjacent limiting grooves 14 have sufficient spacing, strong wall thickness, and are not easily deformed. It also disperses the contact points of the force, reducing stress concentration and damage to the connector 1. The contact area is moderate, easy to drive, and has little impact on the wall thickness of the connector 1, thus increasing its service life while ensuring the structural strength of the connector 1. The guide groove 13 is connected to the corresponding limiting groove 14, so that the tooling 3 can enter the corresponding limiting groove 14 through the guide groove 13, which is convenient for installation and improves the installation efficiency of the connector 1 and the body 2.

[0070] Specifically, the limiting groove 14 can be uniformly arranged along the circumference of the connector 1. By uniformly arranging the limiting groove 14 in the circumference, the force of the tooling 3 can be evenly distributed, further reducing the occurrence of stress concentration, avoiding the generation of local deformation or cracks, and improving the service life of the connector 1. In addition, the circumferentially arranged limiting groove 14 can make the force on each position of the connector 1 more uniform, making the operation more convenient and labor-saving, and improving the installation efficiency of the connector 1.

[0071] In some embodiments, as shown in Figures 5 and 6, the depth of the limiting groove 14 along the radial direction of the connector 1 is less than the thickness of the connector 1.

[0072] In this embodiment, the limiting groove 14 does not penetrate the sidewall of the connector 1 along the radial direction. A continuous material layer is retained at the bottom of the limiting groove 14, providing support to the sidewall and preventing cracks or deformation. Furthermore, the continuous material layer at the bottom of the limiting groove 14 prevents direct contact and friction between the tooling 3 and the body 2 inside the connector 1, thus hindering the rotation of the connector 1. Simultaneously, the continuous material layer also creates a sealing effect, reducing the possibility of liquids, dust, and other impurities entering between the connector 1 and the body 2 when the connector is used in an outdoor environment. This ensures the functionality of the connector 1 while also providing sufficient structural strength, improving its stability and reliability.

[0073] In some embodiments, as shown in FIG6, the length d1 of the limiting groove 14 satisfies 12mm≤d1≤16mm. For example, the length d1 of the limiting groove 14 can be: 12mm, 12.5mm, 13mm, 13.5mm, 14mm, 14.5mm, 15mm, 15.5mm, or 16mm.

[0074] When the length d1 of the limiting groove 14 is too small, the contact area between the limiting groove 14 and the tooling 3 is too small. The force exerted by the tooling 3 on the limiting groove 14 is concentrated on the small area, causing the local stress to exceed the elastic limit of the material, which easily leads to cracks. When the length d1 of the limiting groove 14 is too large, the extension area of ​​the limiting groove 14 is too large, occupying too much area of ​​the side wall of the connector 1, resulting in insufficient overall wall thickness of the connector 1, weakening the strength of the side wall of the connector 1, and increasing the risk of deformation of the connector 1. In this solution, d1 is limited to 12mm to 16mm, which can ensure sufficient contact area to transmit torque and reduce the possibility of stress concentration, while the remaining wall thickness ensures that the connector 1 has sufficient strength and reduces the possibility of deformation of the connector 1.

[0075] Specifically, the width d2 of the limiting groove 14 satisfies 4.5mm≤d2≤5.5mm. For example, the width d2 of the limiting groove 14 can be: 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm, 5mm, 5.1mm, 5.2mm, 5.3mm, 5.4mm, or 5.5mm.

[0076] When the width d2 of the limiting groove 14 is too small, the width of the tooling 3 extending into the limiting groove 14 is also too small, increasing the difficulty of the tooling 3 extending into the limiting groove 14 and easily causing surface scratches. Furthermore, because the width of the tooling 3 mating with the limiting groove 14 is too small, its strength is reduced, making it prone to breakage or deformation when transmitting torque, thus reducing production efficiency. When the width d2 of the limiting groove 14 is too large, the distance between adjacent limiting grooves 14 decreases, meaning the circumferential thickness of the sidewalls between adjacent limiting grooves 14 is thinner, reducing the effective support provided and making it prone to deformation under torque. In this solution, the width d2 of the limiting groove 14 is limited to between 4.5mm and 5.5mm, ensuring that the tooling 3 can smoothly enter the limiting groove 14 while also ensuring sufficient sidewall thickness between adjacent limiting grooves 14 to guarantee the strength of the connector 1, thus improving the overall structural reliability of the connector 1.

[0077] Specifically, the depth d3 of the limiting groove 14 satisfies 0.9mm≤d3≤1.3mm. For example, the depth d3 of the limiting groove 14 can be: 0.9mm, 0.95mm, 1mm, 1.05mm, 1.1mm, 1.15mm, 1.2mm, 1.25mm, 1.3mm.

[0078] When the depth d3 of the limiting groove 14 is too small, the sidewall area of ​​the limiting groove 14 is too thin, resulting in a small contact area between the tooling 3 and the limiting groove 14. This leads to a large torque per unit area during installation, which can easily cause stress concentration and damage to the connector 1. Conversely, when the depth d3 of the limiting groove 14 is too large, the remaining thickness of the connector 1 at the limiting groove 14 is insufficient, making it prone to cracking under external forces. In this design, the depth d3 of the limiting groove 14 is limited to between 0.9mm and 1.3mm. This ensures that the sidewall of the limiting groove 14 has sufficient support area, reducing the risk of stress concentration, while also providing sufficient thickness for the connector 1 at the limiting groove 14, improving the structural stability and reliability of the connector 1 during use.

[0079] In some embodiments, as shown in Figures 6, 8, 9, 10, and 11, the body 2 includes a limiting segment 23 and a connecting segment 24. When the connector 1 is connected to the body 2, the connector 1 can rotate relative to the body 2 in a first direction so that the connector 1 can move in a direction close to the body 2. When the connector 1 moves in a direction close to the body 2, that is, the connector 1 moves in a direction close to the limiting segment 23, when the connector 1 moves to the limiting segment 23, the limiting segment 23 can block the connector 1 from continuing to move, thus playing a limiting role and also fixing the connector 1 in a preset position.

[0080] Specifically, as shown in Figure 8, the connecting segment 24 is provided with a first serration 241, and the connecting member 1 is provided with a second serration 16. The first serration 241 is inclined along a first direction, and the second serration 16 is inclined along a second direction opposite to the first direction. The first serration 241 and the second serration 16 cooperate to restrict the connecting member 1 from rotating relative to the body 2 along the second direction. The first serration 241 and the second serration 16 can be anti-reverse serrations.

[0081] In this embodiment, the first serration 241 and the second serration 16 are both inclined and in opposite directions. This allows the connector 1 to rotate in the second direction when it is fitted onto the body 2. The second serration 16 of the connector 1 will be obstructed by the first serration 241 on the connecting segment 24, meaning the connector 1 can only rotate in the first direction. This design enables the connector 1 to be installed blindly, allowing it to be easily installed onto the body 2 even in poorly visible installation locations. The design of the first serration 241 and the second serration 16, which allows the connector 1 to rotate only in the first direction, also provides an anti-reverse effect, preventing the connector 1 from falling off during long-term use and improving the reliability of the connector 1 connection during extended use.

[0082] In some embodiments, as shown in Figures 5, 9, and 11, the outer perimeter of the connecting segment 24 is a, the inner perimeter of the connector 1 is b, and along the outer perimeter a of the connecting segment 24, the total length of the first serration 241 is limited to 20% × a to 50% × a, and the total length of the second serration 16 is b; or, the total length of the first serration 241 is a, and the total length of the second serration 16 is limited to 20b% to 50% × b.

[0083] In this embodiment, when the total length of the saw teeth is too small, the effective contact area is too small, resulting in insufficient meshing area and poor resistance to torsion. Under large torque, interface slippage or cracks are prone to occur. When the total length of the saw teeth is too large, the mating area is too large, requiring excessively high machining precision, making machining more difficult and increasing costs. An excessively large mating area also results in greater friction at the meshing point, requiring more driving torque, which is laborious and inconvenient for the installation of connector 1. Furthermore, the substrate of connector 1 or body 2 is excessively cut, weakening its overall strength. This solution limits the circumference ratio of the saw teeth to 20% to 50%, ensuring sufficient meshing area, dispersing contact stress, avoiding interface slippage or cracks caused by local overload, and making it easier to process, requiring less driving force, and facilitating installation. It also ensures that the substrate of connector 1 or body 2 has sufficient overall strength.

[0084] In some embodiments, as shown in Figures 9 and 11, the first tooth 241 includes at least a first tooth portion 2411 and a second tooth portion 2412, which are arranged radially on opposite sides of the connecting segment 24.

[0085] In this embodiment, the first tooth 2411 and the second tooth 2412 arranged opposite to each other can distribute the assembly load radially to the tooth surfaces on both sides, making the overall stress on the body 2 more uniform, which helps to avoid local deformation caused by stress concentration on one side and improves the torsional resistance of the connecting section 24.

[0086] In some embodiments, the connector 1 further includes a notch 15 that extends through the connector 1 along its radial direction.

[0087] In this embodiment, a notch 15 is provided radially in the connector 1. When the connector 1 is subjected to torsional torque, the notch 15 can release stress, prevent the connector 1 from being damaged during assembly, and improve the strength and service life of the connector 1.

[0088] Specifically, the number of notches 15 ranges from 2 to 8.

[0089] In this embodiment, when the number of notches 15 is too small, its stress release capability is poor, and stress concentration is likely to occur, causing damage to the connector 1. When the number of notches 15 is too large, there are too many openings on the side wall of the connector 1, which weakens the strength and support of the remaining substrate, making it prone to breakage under load and affecting the reliability of the connector 1 connection. Limiting the number of notches 15 to 2 to 8 can preserve sufficient substrate structure of the connector 1 to maintain overall rigidity, while also effectively releasing stress, ensuring a stable and reliable connection between the connector 1 and the body 2, and improving the service life of the photovoltaic connector.

[0090] Specifically, the cross-sectional shape of the notch 15 can be rectangular, arc-shaped, etc. This application does not limit the cross-sectional shape of the notch 15.

[0091] In some embodiments, as shown in Figures 1, 10, and 12, the photovoltaic connector includes two bodies 2 and two connectors 1. The two bodies 2 are divided into a first body 21 and a second body 22, one of which is a male end and the other is a female end. The two connectors 1 are divided into a first connector 11 and a second connector 12. The first connector 11 is sleeved with the first body 21, and the second connector 12 is sleeved with the second body 22. The first body 21 and the second body 22 can be plugged in. Connecting the connectors 1 to the corresponding bodies 2 and forming the photovoltaic connector through the plugging of the first body 21 and the second body 22 facilitates the connection between the bodies 2 and different components, and then interconnects them. The installation method is simple and efficient, improving the installation efficiency of the photovoltaic connector.

[0092] The above descriptions are merely specific implementations of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the embodiments of this application should be covered within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.

Claims

1. A photovoltaic connector, characterized in that, The photovoltaic connector includes: at least one body (2); at least one connector (1), the connector (1) being sleeved on the outside of the body (2); wherein the connector (1) is provided with a guide groove (13) and a limiting groove (14) that are interconnected, and the cross-sectional area of ​​the guide groove (13) gradually decreases along the direction close to the limiting groove (14).

2. The photovoltaic connector according to claim 1, characterized in that, The number of the limiting grooves (14) is 2 to 12, and each limiting groove (14) is arranged at intervals along the circumference of the connector (1). The guide groove (13) is connected to the corresponding limiting groove (14).

3. The photovoltaic connector according to claim 2, characterized in that, Along the radial direction of the connector (1), the depth of the limiting groove (14) is less than the thickness of the connector (1).

4. The photovoltaic connector according to claim 1, characterized in that, The length d1 of the limiting groove (14) satisfies 12mm≤d1≤16mm, the width d2 satisfies 4.5mm≤d2≤5.5mm, and the depth d3 satisfies 0.9mm≤d3≤1.3mm.

5. The photovoltaic connector according to any one of claims 1 to 4, characterized in that, The body (2) includes a limiting section (23) and a connecting section (24). The connecting section (24) is provided with a first serration (241), and the connector (1) is provided with a second serration (16). When the connector (1) is connected to the body (2), the connector (1) can rotate relative to the body (2) in a first direction so that the connector (1) can move in a direction close to the body (2). The first serration (241) is inclined in the first direction, and the second serration (16) is inclined in a second direction opposite to the first direction. The first serration (241) and the second serration (16) cooperate to restrict the connector (1) from rotating relative to the body (2) in the second direction.

6. The photovoltaic connector according to claim 5, characterized in that, The outer perimeter of the connecting segment (24) is a, the inner perimeter of the connector (1) is b, the total length of the first sawtooth (241) is 20%×a to 50%×a, and the total length of the second sawtooth (16) is b or; the total length of the first sawtooth (241) is a, and the total length of the second sawtooth (16) is 20%×b to 50%×b.

7. The photovoltaic connector according to claim 6, characterized in that, The first saw tooth (241) includes at least a first tooth portion (2411) and a second tooth portion (2412), the first tooth portion (2411) and the second tooth portion (2412) being located on opposite sides of the connecting segment (24) along the radial direction of the connecting segment (24).

8. The photovoltaic connector according to claim 5, characterized in that, The connector (1) further includes a notch (15) that penetrates the connector (1) along the radial direction of the connector (1).

9. The photovoltaic connector according to claim 8, characterized in that, The number of notches (15) is 2 to 8.

10. The photovoltaic connector according to any one of claims 1 to 4, characterized in that, The photovoltaic connector includes two bodies (2) and two connectors (1). The two bodies (2) are a first body (21) and a second body (22), and the two connectors (1) are a first connector (11) and a second connector (12). The first connector (11) is sleeved with the first body (21), and the second connector (12) is sleeved with the second body (22). The first body (21) can be inserted into the second body (22).

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