Photovoltaic connector

Abstract

The utility model relates to the technical field of electric connection, especially a photovoltaic connector, including the plug -in shell, locking element, fixed sleeve, fixed rear shell, electricity -making subassembly and inductance subassembly, locking element sets up one end of plug -in shell, and is used for plug -in shell fixed mounting, one end of plug -in shell is provided with the plug -in cavity, and the other end is provided with fixed cavity, and the plug -in cavity and fixed cavity intercommunication, fixed sleeve sets up in fixed cavity, electricity -making subassembly includes the electricity -making terminal, soft connecting element and electricity -making fixed piece connected in proper order, and one end of electricity -making terminal is fixed in fixed cavity, and the other end extends towards the plug -in cavity, and electricity -making fixed piece sets up in fixed sleeve, and fixed rear shell sets up in the outside of fixed sleeve, and inductance subassembly sets up in fixed rear shell and is located the outside of soft connecting element, the utility model provides effective technical solution scheme for improving the operation safety of photovoltaic power generation system, management intelligent and maintenance high efficiency.

Description

Technical Field

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

[0002] As a key electrical interface component in photovoltaic (PV) power generation systems, PV connectors are responsible for power transmission between modules and between modules and inverters. Their connection reliability and long-term stability directly affect the power generation efficiency and operational safety of the entire PV system. Traditional PV connectors mostly adopt a plug-in structure, using metal terminals for direct contact and mechanical locking with a housing for fixation. However, in actual operation, PV power plants are often built outdoors and are subject to complex environmental factors such as diurnal temperature variations, humidity changes, ultraviolet radiation, and mechanical vibration. This can easily lead to increased internal contact resistance in the connectors, resulting in localized overheating, oxidation, or even melting. Furthermore, existing connectors generally lack effective online monitoring methods, making it impossible to perceive and warn of operational status in real time. Maintenance personnel often fail to detect potential hazards promptly, only addressing them when obvious faults or abnormal power generation occur. This not only affects system power generation efficiency but can also lead to serious safety accidents such as fires due to overheating.

[0003] Currently, to improve connector reliability, the industry primarily employs methods such as increasing locking force, optimizing sealing performance, or improving contact materials in terms of internal structure. While these methods improve mechanical and environmental adaptability to some extent, they fail to fundamentally achieve intelligent monitoring of the electrical connection status. Some solutions attempt to introduce external current or temperature sensors, but these external components are often complex in structure, expensive, and require additional wiring. This not only increases system power consumption and potential failure points but may also introduce new safety hazards due to improper installation. Therefore, how to integrate efficient, non-contact status monitoring functions while ensuring a compact connector structure and reliable connection, and achieve real-time sensing and early warning of multiple parameters such as current, temperature rise, and arcing, has become a critical issue that urgently needs to be addressed in the development of photovoltaic connector technology. Utility Model Content

[0004] To address the aforementioned issues, this utility model combines highly reliable electrical connections with intelligent status monitoring functions. Its compact structure and comprehensive monitoring provide an effective technical solution for improving the operational safety, intelligent management, and efficient maintenance of photovoltaic power generation systems.

[0005] The technical solution adopted by this utility model is as follows: a photovoltaic connector, including a plug-in shell, a locking element, a fixing sleeve, a fixing back shell, a power connection assembly, and an inductor assembly. The locking element is disposed at one end of the plug-in shell and is used for fixing the plug-in shell. One end of the plug-in shell is provided with a plug-in cavity, and the other end is provided with a fixing cavity. The plug-in cavity and the fixing cavity are interconnected. The fixing sleeve is disposed in the fixing cavity. The power connection assembly includes a power connection terminal, a flexible connection element, and a power connection fixing piece connected in sequence. One end of the power connection terminal is fixed in the fixing cavity, and the other end extends toward the plug-in cavity. The power connection fixing piece is disposed in the fixing sleeve. The fixing back shell is disposed outside the fixing sleeve. The inductor assembly is disposed inside the fixing back shell and located outside the flexible connection element.

[0006] A further improvement to the above scheme is that a terminal fixing clamping ring is provided in the fixing cavity, and a fixing clamping groove is provided in the power receiving terminal. The terminal fixing clamping ring is used to clamp the fixing clamping groove to fix the power receiving terminal. An assembly guide ring is provided on one side of the fixing clamping groove, and the terminal fixing clamping ring is provided with multiple tension clamping grooves for opening and closing of the terminal fixing clamping ring to allow the assembly guide ring to pass through.

[0007] A further improvement to the above solution is that an assembly positioning ring is provided at one end of the plug-in housing, and a locking thread is provided on one side of the assembly positioning ring. The locking element includes a locking nut and a locking sealing ring. The locking nut is threadedly connected to the locking thread, and the locking sealing ring is located on one side of the assembly positioning ring and is opposite to the locking nut.

[0008] A further improvement to the above solution is that the fixing sleeve includes an insertion end and an electrical connection end. Insertion buckles are provided on both sides of the insertion end, and an insertion slot is provided in the fixing cavity. The insertion end is located in the fixing cavity and is engaged with the insertion slot by the insertion buckles. The electrical connection end is located at the tail of the insertion end, and the electrical connection fixing piece is located in the electrical connection end.

[0009] A further improvement to the above solution is that the power receiving end is formed by multiple power receiving fixing plates, two adjacent power receiving fixing plates are not connected to each other, and a power receiving fixing groove is formed between the multiple power receiving fixing plates. Power receiving fixing buckles are provided on both sides of the power receiving fixing groove, and a power receiving fixing slot is provided on the power receiving fixing piece. The power receiving fixing piece is fixed to the power receiving fixing buckle through the power receiving fixing slot.

[0010] A further improvement to the above solution is that the flexible connection element is formed by interlacing multiple copper wires, and both ends of the flexible connection element are connected to the power terminal and the power fixing piece by hot-melt welding.

[0011] A further improvement to the above solution is that the fixed rear cover includes a fixed front cover and an mounting rear cover. The fixed front cover and the mounting rear cover are interlocked and form an induction cavity inside. The mounting rear cover is provided with a mounting sleeve. The mounting sleeve is used to connect to the fixed sleeve and is located outside the flexible connection element. The inductor assembly is located outside the mounting sleeve.

[0012] A further improvement to the above solution is that the fixed sleeve is provided with connecting slots on both sides, and the mounting sleeve is provided with connecting buckles on both sides. The connecting buckles are used to cooperate with the connecting slots so that the mounting sleeve and the fixed sleeve are fixedly engaged. The rear end of the mounting cover is provided with an electrical mounting groove, which is used to fix the electrical fixing piece.

[0013] A further improvement to the above solution is that the inductor assembly includes an inductor and an inductor connection module. The inductor is disposed inside the fixed sleeve and located outside the flexible connection element. The inductor connection module includes a circuit board and a power connector. The power connector is disposed on the circuit board, and the inductor is connected to the power connector through the circuit board.

[0014] A further improvement to the above scheme is that at least two inductors are provided, and the at least two inductors are arranged continuously along the axial direction of the flexible connection element; the inductor includes a C-shaped magnetic core and a coil, the coil being wound around the outside of the magnetic core, and the coil being opposite to the flexible connection element in at least three directions.

[0015] The beneficial effects of this utility model are: Compared to existing photovoltaic connectors, this invention adopts a combined design of a plug-in outer shell and a fixed back shell, with the internal connecting assembly supported by a fixed sleeve, forming a compact and robust closed structure. Locking elements ensure mechanical locking of the connector after mating, effectively resisting external pulling and vibration. The flexible connecting element in the connecting assembly effectively compensates for stress caused by thermal expansion and contraction or slight displacement, avoiding poor contact or material fatigue that may occur with rigid connections, thus ensuring the long-term stability and durability of the electrical connection. The inductor assembly is built into the fixed back shell and surrounds the flexible connecting element, non-contactly acquiring current signals through electromagnetic induction. There is no need to connect a sampling resistor in series in the main circuit or install a separate temperature sensor, completely avoiding additional power consumption, heat points, and the risk of secondary faults. Specifically, this inductor assembly can simultaneously achieve three key monitoring functions: accurately measuring branch current to provide data support for system energy management; indirectly monitoring the temperature rise at the connection point by analyzing current characteristics to achieve overheat warning; and sensitively capturing abnormal high-frequency components in the current waveform to achieve early diagnosis and alarm of potential arcing faults. Real-time monitoring and early warning systems can promptly detect safety hazards caused by increased contact resistance, overload, or insulation deterioration, effectively preventing serious accidents such as overheating and fires at connection points, and greatly enhancing the proactive safety protection capabilities of photovoltaic systems. This invention combines highly reliable electrical connections with intelligent status monitoring functions, featuring a compact structure and comprehensive monitoring, providing an effective technical solution for improving the operational safety, intelligent management, and efficient maintenance of photovoltaic power generation systems. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the photovoltaic connector of this utility model in use; Figure 2 This is a three-dimensional schematic diagram of the photovoltaic connector of this utility model; Figure 3 for Figure 2 An exploded view of a photovoltaic connector; Figure 4 for Figure 2 An exploded view of the photovoltaic connector from another perspective; Figure 5 for Figure 2 A front view schematic diagram of the photovoltaic connector section structure; Figure 6 for Figure 5 Sectional view of AA; Figure 7 for Figure 2 Exploded view of the structure of the photovoltaic connector section; Figure 8 for Figure 2 A schematic diagram of the plug-in housing of a photovoltaic connector.

[0017] Explanation of reference numerals in the attached drawings: 1. Plug-in housing; 11. Plug-in cavity; 12. Fixing cavity; 121. Terminal fixing clamp; 122. Tension clamp groove; 13. Assembly positioning ring; 14. Locking thread; 2. Locking element; 21. Locking nut; 22. Locking sealing ring; 3. Fixing sleeve; 31. Insertion end; 311. Insertion buckle; 32. Electrical connection end; 321. Electrical connection fixing plate; 322. Electrical connection fixing groove; 323. Electrical connection fixing buckle; 33. After fixing. 4. Shell 4, fixed front cover 41, installed rear cover 42, power connection mounting groove 421, mounting sleeve 43, connecting buckle 431, power connection assembly 5, power connection terminal 51, fixed clamp groove 511, assembly guide ring 512, flexible connection element 52, power connection fixing piece 53, power connection fixing slot 531, inductor assembly 6, inductor 61, magnetic core 611, coil 612, inductor connection module 62, circuit board 621, power connection pin 622. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0019] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-8As shown, in one embodiment of this utility model, a photovoltaic connector is disclosed, including a plug-in housing 1, a locking element 2, a fixing sleeve 3, a fixing back shell 4, a power connection assembly 5, and an inductor assembly 6. The locking element 2 is disposed at one end of the plug-in housing 1 and is used for fixing the plug-in housing 1. One end of the plug-in housing 1 is provided with a plug-in cavity 11, and the other end is provided with a fixing cavity 12. The plug-in cavity 11 and the fixing cavity 12 are interconnected. The fixing sleeve 3 is disposed in the fixing cavity 12. The power connection assembly 5 includes a power connection terminal 51, a flexible connection element 52, and a power connection fixing piece 53 connected in sequence. One end of the power connection terminal 51 is fixed in the fixing cavity 12, and the other end extends toward the plug-in cavity 11. The power connection fixing piece 53 is disposed in the fixing sleeve 3. The fixing back shell 4 is disposed outside the fixing sleeve 3. The inductor assembly 6 is disposed inside the fixing back shell 4 and located outside the flexible connection element 52. This embodiment employs a combination design of a plug-in outer shell 1 and a fixed rear shell 4. The internal connecting assembly 5 is supported by a fixed sleeve 3, forming a compact and robust enclosed structure. The locking element 2 ensures mechanical locking of the connector after mating, effectively resisting external pulling and vibration. The flexible connecting element 52 in the connecting assembly 5 effectively compensates for stress caused by thermal expansion and contraction or slight displacement, avoiding poor contact or material fatigue that may result from rigid connections, thus ensuring the long-term stability and durability of the electrical connection. The inductor assembly 6 is built into the fixed rear shell 4 and surrounds the flexible connecting element 52, acquiring current signals non-contactly through electromagnetic induction. There is no need to connect a sampling resistor in series in the main circuit or install a separate temperature sensor, completely avoiding additional power consumption, heat points, and the risk of secondary faults. Specifically, the inductor assembly 6 can simultaneously achieve three key monitoring functions: accurately measuring branch current to provide data support for system energy management; indirectly monitoring the temperature rise at the connection point by analyzing current characteristics to achieve overheat warning; and sensitively capturing abnormal high-frequency components in the current waveform to achieve early diagnosis and alarm of potential arcing faults. Real-time monitoring and early warning systems can promptly detect safety hazards caused by increased contact resistance, overload, or insulation deterioration, effectively preventing serious accidents such as overheating and fires at connection points, and greatly enhancing the proactive safety protection capabilities of photovoltaic systems. This embodiment combines highly reliable electrical connections with intelligent status monitoring functions, featuring a compact structure and comprehensive monitoring, providing an effective technical solution for improving the operational safety, intelligent management, and efficient maintenance of photovoltaic power generation systems.

[0021] A terminal fixing clamping ring 121 is provided inside the fixing cavity 12. The power receiving terminal 51 is provided with a fixing clamping groove 511. The terminal fixing clamping ring 121 is used to clamp the fixing clamping groove 511 to fix the power receiving terminal 51. An assembly guide ring 512 is provided on one side of the fixing groove 511. The terminal fixing clamping ring 121 is provided with multiple tension clamping grooves 122 for opening and closing of the terminal fixing clamping ring 121 to allow the assembly guide ring 512 to pass through. In this embodiment, by setting the terminal fixing clamping ring 121 to cooperate with the fixing groove 511 on the power receiving terminal 51, the power receiving terminal 51 is quickly and accurately locked in the fixing cavity 12. The coordinated design of the assembly guide ring 512 and the tension clamping grooves 122 guides the terminal fixing clamping ring 121 to elastically open during installation, allowing the power receiving terminal 51 to be smoothly inserted into place. After that, the terminal fixing clamping ring 121 automatically tightens due to its own elastic restoring force, firmly clamping the fixing groove 511. This structure not only facilitates assembly and greatly improves production efficiency, but also ensures the excellent vibration and pull-out resistance of the electrical terminal 51 through the surface contact clamping method, effectively preventing it from loosening or shifting during long-term operation. This fundamentally avoids the risk of increased contact resistance and local overheating caused by poor contact, providing a key guarantee for the stable conductivity and long-term reliability of photovoltaic connectors.

[0022] One end of the plug-in housing 1 is provided with an assembly positioning ring 13, and one side of the assembly positioning ring 13 is provided with a locking thread portion 14. The locking element 2 includes a locking nut 21 and a locking sealing ring 22. The locking nut 21 is threadedly connected to the locking thread portion 14, and the locking sealing ring 22 is disposed on one side of the assembly positioning ring 13 and opposite to the locking nut 21. In this embodiment, by setting the assembly positioning ring 13 and the locking thread portion 14 on its side, and cooperating with the locking element 2 which includes the locking nut 21 and the locking sealing ring, the rapid and reliable installation and sealing of the photovoltaic connector plug-in end is achieved. During assembly, the plug-in housing 1 can be accurately positioned in advance by the assembly positioning ring 13. After the locking nut 21 is screwed into the locking thread portion 14, it generates an axial clamping force, causing the locking sealing ring to be deformed under pressure, thereby forming an effective seal at the connection interface, preventing moisture, dust and other contaminants from entering the plug-in cavity 11, and ensuring the long-term safety of the internal electrical connection. This structure is not only easy to install and operate, and has high mechanical strength, but also significantly improves the environmental adaptability and protection level of the connector, making it especially suitable for photovoltaic power station applications in harsh outdoor environments, effectively extending the service life of the equipment.

[0023] The fixing sleeve 3 includes an insertion end 31 and a power receiving end 32. Insertion latches 311 are provided on both sides of the insertion end 31, and a insertion slot is provided within the fixing cavity 12. The insertion end 31 is disposed within the fixing cavity 12 and engages with the insertion slot via the insertion latches 311. The power receiving end 32 is located at the tail of the insertion end 31, and the power receiving fixing piece 53 is disposed within the power receiving end 32. In this embodiment, by setting the insertion end 31 and insertion latches 311 of the fixing sleeve 3, and their engagement with the insertion slot within the fixing cavity 12, rapid, accurate positioning and reliable fixing of the fixing sleeve 3 within the connector are achieved. During assembly, the engagement of the insertion latches 311 and the insertion slot provides a clear assembly feel and positioning indication, preventing misalignment during installation. The snap-fit ​​structure effectively constrains the fixing sleeve 3 in both the axial and circumferential directions, preventing it from loosening or shifting under vibration or external impact, thus ensuring the stability of the internal electrical connection component 5. Simultaneously, the electrical connection fixing piece 53 is securely mounted within the electrical connection end 32, ensuring the continuity of the electrical connection. The snap-fit ​​installation method eliminates the need for additional fasteners, simplifying the assembly process, improving production efficiency, and enhancing the overall structure's vibration resistance and long-term operational reliability.

[0024] The power receiving end 32 is formed by a plurality of power receiving fixing plates 321. Adjacent power receiving fixing plates 321 are not connected to each other. A power receiving fixing groove 322 is formed between the plurality of power receiving fixing plates 321. Power receiving fixing buckles 323 are provided on both sides of the power receiving fixing groove 322. A power receiving fixing slot 531 is provided on the power receiving fixing piece 53. The power receiving fixing piece 53 is engaged with the power receiving fixing buckle 323 through the power receiving fixing slot 531. In this embodiment, the power receiving end 32 is configured to be formed by a plurality of unconnected power receiving fixing plates 321, with a power receiving fixing groove 322 formed between adjacent fixing plates. Simultaneously, power receiving fixing buckles 323 are provided on the sides of the groove, achieving a snap-fit ​​engagement with the power receiving fixing slot 531 on the power receiving fixing piece 53. The power connection fixing plate 321 possesses a certain degree of elastic deformation capability, allowing it to open slightly when the power connection fixing piece 53 is inserted. The snap-fit ​​and slot engage to form a stable interlock, ensuring the secure fixing of the power connection fixing piece 53 while effectively preventing loosening due to vibration. The snap-fit ​​structure simplifies assembly, eliminating the need for screws or other additional fasteners, thus improving production efficiency and assembly consistency. This provides crucial protection for the electrical safety and mechanical reliability of photovoltaic connectors under long-term high-load operation.

[0025] The flexible connector 52 is formed by interlacing multiple copper wires. Both ends of the flexible connector 52 are connected to the contact terminal 32 51 and the contact fixing plate 53 by hot-melt welding. In this embodiment, by using a flexible connector 52 formed by interlacing multiple copper wires and using a hot-melt welding process to achieve metallurgical bonding between its two ends and the contact terminal 32 51 and the contact fixing plate 53 respectively, the electrical performance and mechanical adaptability of the photovoltaic connector are improved. The interlaced structure gives the flexible connector 52 excellent flexibility and fatigue resistance, which can effectively absorb deformation caused by temperature changes, vibration or installation stress, avoiding the risk of poor contact or breakage caused by rigid connection. The connection interface formed by hot-melt welding has low resistance and high bonding strength, which not only ensures the stability of high current transmission, but also enhances the ability to resist high temperature and oxidation. This design takes into account the structural reliability and electrical connection continuity under dynamic environments, and is particularly suitable for photovoltaic systems with operating condition changes caused by diurnal temperature differences, wind sway, etc., thereby extending the service life of the connector and improving the overall safety of the system.

[0026] The fixed rear cover 4 includes a fixed front cover 41 and a mounting rear cover 42. The fixed front cover 41 and the mounting rear cover 42 are interlocked and form a sensing cavity inside. The mounting rear cover 42 is provided with a mounting sleeve 43, which is used to connect the fixed sleeve 3 and is located outside the flexible connecting element 52. The inductor assembly 6 is disposed outside the mounting sleeve 43. In this embodiment, by setting the fixed rear cover 4 as a closed structure formed by the interlocking of the fixed front cover 41 and the mounting rear cover 42, and constructing a sensing cavity inside it, effective encapsulation and protection of the internal electrical components are achieved. The mounting sleeve 43 on the mounting rear cover 42 not only connects the fixed sleeve 3, but also provides external protection for the flexible connecting element 52, preventing damage caused by external pressure or environmental erosion. At the same time, the inductor assembly 6 is disposed outside the mounting sleeve 43, which not only makes full use of the structural space, but also isolates external electromagnetic interference through the cavity, improving the stability of signal detection. The split-type snap-fit ​​design facilitates assembly and maintenance, while the sealed cavity structure effectively prevents dust and moisture, enhancing overall weather resistance. It is suitable for complex working environments such as outdoor photovoltaic power stations, ensuring the reliability and safety of the connector during long-term operation.

[0027] The fixed sleeve 3 has connecting slots 33 on both sides, and the mounting sleeve 43 has connecting buckles 431 on both sides. The connecting buckles 431 are used to engage with the connecting slots 33 to securely engage the mounting sleeve 43 with the fixed sleeve 3. The rear end of the mounting cover 42 has an electrical connection mounting groove 421 for fixing the electrical connection fixing piece 53. In this embodiment, the connecting slots 33 on both sides of the fixed sleeve 3 and the connecting buckles 431 on both sides of the mounting sleeve 43 form a snap-fit ​​engagement, achieving a quick and stable connection between the mounting sleeve 43 and the fixed sleeve 3. The snap-fit ​​connection structure eliminates the traditional threaded or screw fixing method, simplifies the assembly process, improves production efficiency, avoids the risk of loosening due to vibration, and enhances the vibration resistance and connection reliability of the overall structure. The power mounting groove 421 at the rear end of the mounting cover 42 provides precise positioning and fixing space for the power mounting plate 53, ensuring that the power mounting plate 53 maintains a stable posture after installation and effectively preventing poor contact caused by displacement or shaking. The modular snap-fit ​​and positioning structure not only improves the assembly convenience and maintainability of the photovoltaic connector, but also further optimizes the stability of the internal electrical connections, making it suitable for photovoltaic system applications requiring high vibration and high reliability.

[0028] The inductor assembly 6 includes an inductor 61 and an inductor connection module 62. The inductor 61 is disposed within the fixed sleeve 3 and located outside the flexible connector element 52. The inductor connection module 62 includes a circuit board 621 and a receiving pin 622. The receiving pin 622 is disposed on the circuit board 621, and the inductor 61 is connected to the receiving pin 622 through the circuit board 621. Specifically, at least two inductors 61 are provided, and at least two inductors 61 are continuously arranged along the axial direction of the flexible connector element 52. Each inductor 61 includes a C-shaped magnetic core 611 and a coil 612. The coil 612 is wound around the outside of the magnetic core 611, and the coil 612 is opposite to the flexible connector element 52 in at least three directions. In this embodiment, by adopting the inductor assembly 6 structure including the inductor 61 and the inductor connection module 62, wherein the inductor 61 is disposed within the fixed sleeve 3 and surrounds the flexible connector element 52, accurate sensing and efficient processing of current signals are achieved. Specifically, at least two inductors 61 are arranged continuously along the axial direction of the flexible connection element 52 to form a multi-level sensing unit, effectively expanding the sensing area and improving the sensitivity and signal-to-noise ratio of signal acquisition. Each inductor 61 adopts a C-shaped magnetic core 611 in conjunction with an externally wound coil 612, so that it forms a spatial relative relationship with the flexible connection element 52 in at least three directions, enabling it to capture the magnetic field generated by current changes from all directions and avoiding detection blind spots caused by unidirectional detection. The inductor connection module 62 integrates a connector 622 through the circuit board 621, realizing a stable electrical connection between the inductor 61 and the external circuit, which simplifies the internal wiring complexity and improves the reliability of signal transmission.

[0029] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A photovoltaic connector, characterized in that: The device includes a plug-in housing, a locking element, a fixing sleeve, a fixing rear housing, a power connection assembly, and an inductor assembly. The locking element is located at one end of the plug-in housing and is used for fixing the plug-in housing. One end of the plug-in housing has a plug-in cavity, and the other end has a fixing cavity, which are interconnected. The fixing sleeve is located inside the fixing cavity. The power connection assembly includes a power connection terminal, a flexible connector, and a power connection fixing piece connected in sequence. One end of the power connection terminal is fixed to the fixing cavity, and the other end extends toward the plug-in cavity. The power connection fixing piece is located on the fixing sleeve. The fixing rear housing is located outside the fixing sleeve. The inductor assembly is located inside the fixing rear housing and outside the flexible connector.

2. The photovoltaic connector according to claim 1, characterized in that: A terminal fixing clamping ring is provided inside the fixing cavity, and a fixing clamping groove is provided for the electrical terminal. The terminal fixing clamping ring is used to clamp the fixing clamping groove to fix the electrical terminal. An assembly guide ring is provided on one side of the fixing clamping groove, and the terminal fixing clamping ring is provided with multiple tension clamping grooves for opening and closing of the terminal fixing clamping ring so that the assembly guide ring can pass through.

3. The photovoltaic connector according to claim 1, characterized in that: One end of the plug-in housing is provided with an assembly positioning ring, and one side of the assembly positioning ring is provided with a locking thread. The locking element includes a locking nut and a locking sealing ring. The locking nut is threadedly connected to the locking thread, and the locking sealing ring is located on one side of the assembly positioning ring and is opposite to the locking nut.

4. The photovoltaic connector according to claim 1, characterized in that: The fixing sleeve includes an insertion end and an electrical connection end. Insertion buckles are provided on both sides of the insertion end, and an insertion slot is provided in the fixing cavity. The insertion end is located in the fixing cavity and is engaged with the insertion slot by the insertion buckles. The electrical connection end is located at the tail of the insertion end, and the electrical connection fixing piece is located in the electrical connection end.

5. The photovoltaic connector according to claim 4, characterized in that: The power receiving end is formed by multiple power receiving fixing plates. Adjacent power receiving fixing plates are not connected to each other. Power receiving fixing grooves are formed between the multiple power receiving fixing plates. Power receiving fixing buckles are provided on both sides of the power receiving fixing grooves. Power receiving fixing plates are provided with power receiving fixing slots. Power receiving fixing plates are fixed to power receiving fixing buckles through power receiving fixing slots.

6. The photovoltaic connector according to claim 1, characterized in that: The flexible connector is formed by interlacing multiple copper wires, and both ends of the flexible connector are connected to the power terminal and the power fixing piece by hot-melt welding.

7. The photovoltaic connector according to claim 1, characterized in that: The fixed rear cover includes a fixed front cover and a mounting rear cover. The fixed front cover and the mounting rear cover are interlocked and form an induction cavity inside. The mounting rear cover is provided with a mounting sleeve. The mounting sleeve is used to connect to the fixed sleeve and is located outside the flexible connection element. The inductor assembly is located outside the mounting sleeve.

8. The photovoltaic connector according to claim 7, characterized in that: The fixed sleeve has connecting slots on both sides, and the mounting sleeve has connecting buckles on both sides. The connecting buckles are used to engage with the connecting slots so that the mounting sleeve and the fixed sleeve are fixedly engaged. The rear end of the mounting cover has an electrical mounting groove for fixing the electrical fixing piece.

9. The photovoltaic connector according to claim 1, characterized in that: The inductor assembly includes an inductor and an inductor connection module. The inductor is disposed inside a fixed sleeve and located outside a flexible connection element. The inductor connection module includes a circuit board and a connector pin. The connector pin is disposed on the circuit board, and the inductor is connected to the connector pin through the circuit board.

10. The photovoltaic connector according to claim 9, characterized in that: The inductor is provided in at least two forms, and the at least two inductors are arranged continuously along the axial direction of the flexible connection element; the inductor includes a C-shaped magnetic core and a coil, the coil being wound around the outside of the magnetic core, and the coil being opposite to the flexible connection element in at least three directions.

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