Intelligent composite photovoltaic connector

Abstract

The utility model discloses an intelligent composite photovoltaic connecting piece is formed by male plug and female socket. In the male plug, the male external thread pipe is arranged at the front end of the plug shell, the male plug connector is fixed at the front end of the inner cavity, four to six plug pins are installed at the front end face of the male plug connector, the temperature measuring hole is arranged in the inner center, the male temperature sensor is embedded in the temperature measuring hole, the arc elastic sheet arranged on the inner wall of the temperature measuring hole contacts with the front end of the sensor shell, and the rear end of the plug shell is connected with the male cable. In the female socket, the fixed ring and the cylindrical spring are arranged at the front end of the female shell, the rear end of the spring is connected with the rubber ring, the female internal thread pipe is movably arranged at the rear section of the shell, the female plug connector is fixed at the rear end of the female shell, the female temperature sensor is embedded in the inner cavity of the female plug connector, the heat conduction ring and the heat conduction fin are arranged on the outer side, and the front end is connected with the female cable. The connecting piece has the functions of real-time temperature monitoring, high-efficiency heat dissipation and stable connection, and can improve the safety and reliability of the photovoltaic system operation.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to an intelligent composite photovoltaic connector. Background Technology

[0002] In solar photovoltaic (PV) power generation systems, PV connectors are indispensable components, playing a crucial role in connecting PV modules, purlins, inverters, and other electrical equipment. Their performance and quality directly impact the overall system's power generation efficiency and safety. While traditional PV connectors can achieve basic electrical connection functions, they still have some shortcomings in practical applications. For example, in terms of temperature monitoring, traditional PV connectors often lack effective temperature monitoring methods, making it impossible to monitor the temperature changes of the connectors in real time during operation. PV connectors generate heat during current transmission; if the temperature is too high, it will not only affect the performance and lifespan of the connectors but may also cause safety hazards, such as connector damage, poor contact, or even fire.

[0003] In terms of heat dissipation performance, traditional photovoltaic (PV) connectors suffer from inadequate heat dissipation design, failing to effectively and quickly dissipate internally generated heat. This leads to increased internal temperature, affecting the stability and efficiency of current transmission and reducing the overall power generation of the PV system. Furthermore, regarding connection stability, traditional PV connectors may be affected by environmental factors (such as wind, sun, and rain) during long-term use, resulting in loose connections and poor contact. This not only increases energy loss in electrical connections and reduces system efficiency but also increases system failure rates, maintenance costs, and time. To address these issues, it is necessary to develop a novel intelligent composite PV connector. This connector should possess temperature monitoring capabilities, enabling real-time monitoring of temperature changes; simultaneously, it should have excellent heat dissipation performance, rapidly dissipating internally generated heat, thereby improving the power generation efficiency and safety of the PV system. Utility Model Content

[0004] In view of the shortcomings mentioned above, a technical solution for an intelligent composite photovoltaic connector is provided.

[0005] It includes a male plug and a female socket that are interlocked. The male plug includes a plug housing, a male connector fixed to the front end of the inner cavity of the plug housing, and a male cable fixed to the rear end of the plug housing and connected to the rear end of the male connector. A pin is fixed to the front end of the male connector, and a male temperature sensor is embedded in the inner cavity of the male connector.

[0006] The female connector includes a female housing, a female connector plug fixed to the rear end of the female housing, and a female cable fixedly connected to the front end of the female housing. A female internal thread tube is movably disposed on the rear section of the outer ring surface of the female housing, and a female temperature sensor is embedded and fixed in the inner cavity of the female connector. A heat-conducting ring is embedded and fixed in the inner outer region of the female connector, and 3-5 heat-conducting fins penetrating the female connector are fixed in a ring array on the outer ring surface of the heat-conducting ring.

[0007] In the above-mentioned technical solution of a smart composite photovoltaic connector, preferably: a male external thread tube is fixedly connected to the front end face of the plug shell, and the inner ring surface of the female internal thread tube is provided with a thread adapted to mate with the male external thread tube.

[0008] In the above-mentioned technical solution of a smart composite photovoltaic connector, preferably: a temperature measuring hole is provided in the center of the male connector for embedding and fixing a male temperature sensor, and the temperature sensing end of the male temperature sensor is in contact with the inner cavity sidewall of the male connector for monitoring the temperature rise of the male connector.

[0009] In the above-mentioned technical solution of a smart composite photovoltaic connector, preferably: an arc-shaped elastic sheet is fixedly connected to the inner cavity sidewall of the temperature measuring hole, and the arched protruding part of the arc-shaped elastic sheet contacts the front end of the outer shell of the male temperature sensor.

[0010] In the above-mentioned technical solution of a smart composite photovoltaic connector, preferably: a fixing ring is fixedly connected to the front part of the outer ring surface of the female head shell, and a cylindrical spring sleeved on the outer ring of the female head shell is fixedly connected to the rear end face of the fixing ring.

[0011] In the above-mentioned technical solution of an intelligent composite photovoltaic connector, preferably: the rear end of the cylindrical spring is fixedly connected to a rubber ring sleeved on the outer ring of the female head shell, and multiple anti-slip grooves are provided on the rear surface of the rubber ring to release the elasticity of the cylindrical spring onto the internal threaded tube of the female head, thereby controlling the posture of the internal threaded tube of the female head after it is screwed and locked.

[0012] In the above-mentioned technical solution of a smart composite photovoltaic connector, preferably: 4-6 protrusions are fixedly connected in a ring array on the outer surface of the rubber ring, which are used to provide the force application point for the forward-moving rubber ring and compressing the cylindrical spring.

[0013] In the above-mentioned technical solution of a smart composite photovoltaic connector, preferably: the rear end face of the female connector is provided with a socket for inserting and mating pins, and the internal center of the female connector is provided with a female temperature measuring hole for fixing and embedding a female temperature sensor.

[0014] In the above-mentioned technical solution of a smart composite photovoltaic connector, preferably: an arched elastic sheet is fixedly connected in the inner cavity of the female head temperature measuring hole, and the arched protruding part of the arched elastic sheet is in close contact with the outer shell surface of the female head temperature sensor.

[0015] In the above-mentioned technical solution of a smart composite photovoltaic connector, preferably: the inner and outer sides of the female connector are provided with a cavity for the heat-conducting ring to be embedded and fixed, and the outer ring surface of the female connector is provided with 3-5 openings in a ring array for the heat-conducting fins to be exposed. The outer end face of the heat-conducting fins is flush with the outer ring surface of the female connector, and the heat-conducting ring and heat-conducting fins transfer the heat generated inside the female connector to the outside of the female connector and the female internal threaded tube.

[0016] As can be seen from the above technical solution, the intelligent composite photovoltaic connector provided by this utility model has the following beneficial effects compared with the prior art:

[0017] 1. Both the male and female connectors are equipped with temperature sensors to monitor their temperatures in real time, facilitating timely detection of overheating and other abnormal conditions, and ensuring the safe and stable operation of the connectors. The female connector has a heat-conducting ring and heat-conducting fins inside. The heat-conducting ring absorbs internal heat, and the heat-conducting fins increase the contact area with air, accelerating heat dissipation, effectively reducing the operating temperature, and reducing the risk of performance degradation and damage caused by high temperatures.

[0018] 2. The female connector housing is equipped with a cylindrical spring, a rubber ring, and a protrusion. By moving the rubber ring forward to compress the spring, the posture of the female connector's internal threaded tube after tightening and locking can be flexibly adjusted, enhancing connection stability. The male connector's external threaded tube is compatible with the female connector's internal threaded tube, facilitating installation and disassembly and improving construction efficiency. The overall design takes into account temperature monitoring, heat dissipation, connection stability, and ease of operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced and explained below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an overall schematic diagram of the photovoltaic line connector;

[0021] Figure 2 This is a schematic diagram of a male plug;

[0022] Figure 3 This is a schematic diagram of the internal connector of a male plug;

[0023] Figure 4 This is a schematic diagram of a female connector socket;

[0024] Figure 5 A schematic diagram of a female locking nut;

[0025] Figure 6 This is a schematic diagram of the internal connectors of a female socket.

[0026] Appendix Figure 1 -Appendix Figure 6 The correspondence between the components is as follows:

[0027] 1. Male plug; 11. Plug housing; 12. Male connector; 13. Pin; 14. Male external thread tube; 15. Male cable; 16. Temperature sensor hole; 17. Arc-shaped elastic sheet; 18. Male temperature sensor; 2. Female socket; 21. Female housing; 22. Female cable; 23. Female connector; 24. Cylindrical spring; 25. Female internal thread tube; 26. Rubber ring; 27. Protrusion; 28. Retaining ring; 29. ​​Female temperature sensor hole; 210. Arched elastic sheet; 211. Female temperature sensor; 212. Opening; 213. Thermal fins; 214. Thermal ring. Detailed Implementation

[0028] 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 embodiments described below 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 scope of protection of the present utility model. In order to provide a clearer explanation and description of the technical solutions and implementation methods of the present utility model, the following introduces specific embodiments that implement the preferred technical solutions of the present utility model.

[0029] Example 1: A smart composite photovoltaic connector includes a male plug 1 and a female socket 2 that are interlocked. In the male plug 1, the plug housing 11 is made of high-strength insulating plastic, and a male external thread tube 14 is fixedly connected to its front end face. A male connector 12 is fixed to the front end of the inner cavity of the plug housing 11, and a pin 13 is fixed to the front end face of the male connector 12. A temperature measuring hole 16 is opened in the center of the inner cavity. An arc-shaped elastic sheet 17 is fixedly connected to the inner side wall of the temperature measuring hole 16. A male temperature sensor 18 is embedded and fixed in the temperature measuring hole 16, with its temperature sensing end contacting the inner side wall of the male connector 12. The arched protrusion of the arc-shaped elastic sheet 17 contacts the front end of the outer shell of the male temperature sensor 18, providing a certain limiting and buffering effect for the male temperature sensor 18. A male cable 15 is fixedly connected to the rear end of the plug housing 11, and the male cable 15 is connected to the rear end of the male connector 12.

[0030] In the female connector socket 2, the female connector housing 21 is made of the same material as the plug housing 11. A retaining ring 28 is fixedly connected to the front part of its outer ring surface. A cylindrical spring 24, which is fitted onto the outer ring of the female connector housing 21, is fixedly connected to the rear end of the retaining ring 28. A rubber ring 26, which is fitted onto the outer ring of the female connector housing 21, is fixedly connected to the rear end of the cylindrical spring 24. The rear surface of the rubber ring 26 is provided with multiple anti-slip grooves, and four protrusions 27 are fixedly connected in a ring array on the outer surface of the rubber ring 26. A female internal thread tube 25 is movably disposed on the rear part of the outer ring surface of the female connector housing 21. The inner ring surface of the female internal thread tube 25 is provided with threads that are compatible with the male external thread tube 14. The female connector housing 21 has a female connector plug 23 fixed at its rear end. The female connector plug 23 has a socket for the pin 13 to be inserted and mated on its rear end face. A female connector temperature measuring hole 29 is opened in the center of the interior. An arched elastic sheet 210 is fixedly connected in the inner cavity of the female connector temperature measuring hole 29. The female connector temperature sensor 211 is embedded and fixed in the female connector temperature measuring hole 29. The arched protruding part of the arched elastic sheet 210 is in close contact with the surface of the female connector temperature sensor 211 housing. A heat-conducting ring 214 is embedded and fixed in the outer region of the female connector 23. A cavity for embedding and fixing the heat-conducting ring 214 is opened in the outer region of the female connector 23. Three openings 212 are arranged in a ring array on the outer surface of the female connector 23 to expose the heat-conducting fins 213. Three heat-conducting fins 213 penetrating the female connector 23 are fixed in a ring array on the outer surface of the heat-conducting ring 214. The outer end face of the heat-conducting fins 213 is flush with the outer surface of the female connector 23. A female connector cable 22 is fixedly connected to the front end of the female connector shell 21. The female connector cable 22 is connected to the female connector 23.

[0031] In use, the male external thread tube 14 of the male plug 1 is aligned with the female internal thread tube 25 of the female socket 2 and screwed in, so that the pin 13 is inserted into the socket of the female connector 23. When the connector is working, the male temperature sensor 18 monitors the temperature rise of the male connector 12, and the female temperature sensor 211 monitors the temperature rise of the female connector 23. The heat-conducting ring 214 and the heat-conducting fins 213 transfer the heat generated inside the female connector 23 to the outside. If it is necessary to adjust the posture of the female internal thread tube 25 after it is screwed and locked, the rubber ring 26 can be moved forward and the cylindrical spring 24 can be compressed. The elasticity between the rubber ring 26 and the female internal thread tube 25 is used for control.

[0032] Example 2: In this example, the male connector 1 has 5 pins 13 fixed to the front end of the male connector 12. The arc-shaped elastic sheet 17 fixedly connected to the inner wall of the temperature measuring hole 16 in the center is made of a more elastic metal sheet, which provides better limiting and buffering effect for the male temperature sensor 18. The male cable 15 connected to the rear end of the connector housing 11 uses a thicker wire diameter to improve current transmission capacity. In the female connector 2, the size of the fixing ring 28 fixedly connected to the front part of the outer ring surface of the female connector housing 21 is increased, making the installation of the cylindrical spring 24 more stable. The rubber ring 26 connected to the rear end of the cylindrical spring 24 uses a softer rubber material, and the anti-slip groove is deepened for better anti-slip effect. Five protrusions 27 are fixedly connected in a ring array on the outer surface of the rubber ring 26 to facilitate the operator to apply force. The female connector 23 has five sockets on its rear end face for inserting pins 13. The arched elastic plate 210, fixedly connected to the central female temperature sensing hole 29, is made of a more elastic material, providing a tighter fixation for the female temperature sensor 211. The outer surface of the female connector 23 has four openings 212 arranged in a ring array to expose the heat-conducting fins 213. The outer surface of the heat-conducting ring 214 has four heat-conducting fins 213 arranged in a ring array, penetrating the female connector 23, resulting in better heat dissipation. In use, similar to Embodiment 1, the male plug 1 is connected to the female socket 2 and screwed in. The male temperature sensor 18 and the female temperature sensor 211 monitor the temperature rise of the male connector 12 and the female connector 23, respectively, allowing for better heat dissipation from the heat-conducting ring 214 and the heat-conducting fins 213. By moving the rubber ring 26 forward and compressing the cylindrical spring 24, the posture of the female internal thread tube 25 after screwing and locking can be adjusted more flexibly.

[0033] Example 3: In this example, the male connector 1 has six pins 13 fixed to its front end face. The arc-shaped elastic sheet 17 fixedly connected to the inner wall of the temperature measuring hole 16 in the center has an anti-slip treatment to further prevent the male temperature sensor 18 from loosening. The male cable 15 connected to the rear end of the connector housing 11 is made of a material with better weather resistance to adapt to harsher environments. In the female connector 2, the fixing ring 28 fixedly connected to the front end of the outer ring surface of the female housing 21 is made of metal to increase strength. The rubber ring 26 connected to the rear end of the cylindrical spring 24 has six protrusions 27 fixedly connected in a ring array on its outer surface, and the surface of the protrusions 27 is treated with an anti-slip texture to facilitate the operator's application of force. The rear end face of the female connector 23 has six sockets for the pins 13 to be inserted and mated. The arched elastic sheet 210 fixedly connected to the inner cavity of the female temperature measuring hole 29 in the center has an anti-oxidation treatment to extend its service life. The outer surface of the female connector 23 has five openings 212 arranged in a ring array to expose the heat-conducting fins 213. The outer surface of the heat-conducting ring 214 has five heat-conducting fins 213 arranged in a ring array, penetrating the female connector 23, resulting in higher heat dissipation efficiency. In use, the male plug 1 is connected to the female socket 2 and screwed in. The male temperature sensor 18 and the female temperature sensor 211 accurately monitor the temperature rise of the male connector 12 and the female connector 23. The heat-conducting ring 214 and the heat-conducting fins 213 quickly transfer heat to the outside. By moving the rubber ring 26 forward and compressing the cylindrical spring 24, the posture of the female internal thread tube 25 after screwing and locking can be adjusted to ensure stable operation of the connector.

[0034] Based on the above preferred technical solution, the workflow of this technical solution is described as follows: During the installation phase, the operator first fixes the female socket 2 in the predetermined position. The female socket housing 21 provides stable support for the internal components through its structure. The female cable 22 is connected to the corresponding circuit of the photovoltaic system to prepare for power input. Subsequently, the operator holds the male plug 1, aligns the male external thread tube 14 of the male plug 1 with the female internal thread tube 25 of the female socket 2, and begins to slowly screw the male plug 1. During the screwing process, the pin 13 at the front end of the male connector 12 gradually approaches the socket at the rear end of the female connector 23. When screwed in place, the pin 13 accurately inserts into the socket, completing the mechanical connection and electrical conduction between the male plug 1 and the female socket 2. At this time, the male cable 15 and the female cable 22 achieve the power transmission path through the connector. When the connector starts working, the male connector 12 and the female connector 23 generate heat due to the current flowing through them.

[0035] The male temperature sensor 18 is embedded in the temperature measuring hole 16 inside the male connector 12. Its temperature sensing end is in contact with the side wall of the inner cavity of the male connector 12, which monitors the temperature change of the male connector 12 in real time and transmits the temperature data to the monitoring system through relevant lines. The female temperature sensor 211 is embedded in the female temperature measuring hole 29 of the female connector 23. The arched elastic sheet 210 is in close contact with the outer surface of the female temperature sensor 211, which ensures that the female temperature sensor 211 is stably fixed and monitors the temperature of the female connector 23. It also transmits the temperature data to the monitoring system. At the same time, the heat-conducting ring 214 embedded and fixed in the inner outer region of the female connector 23 begins to work. The heat-conducting ring 214 absorbs the heat generated inside the female connector 23 and transfers the heat to the outside of the female connector 23 and the female internal thread tube 25 through the heat-conducting fins 213 fixed in a ring array on its outer surface. The heat-conducting fins 213 are exposed through the opening 212 on the outer surface of the female connector 23, increasing the contact area with the air and accelerating the heat dissipation.

[0036] During the operation of the connector, if the female internal thread tube 25 shows signs of loosening after being tightened due to temperature changes or other factors, the operator can adjust it by moving the rubber ring 26 forward and compressing the cylindrical spring 24. The rubber ring 26, with its protrusions 27 on its outer surface, facilitates the operator's application of force. The cylindrical spring 24 generates elastic force during compression, which is transmitted through the rubber ring 26 to the female internal thread tube 25, making the connection between the female internal thread tube 25 and the male external thread tube 14 tighter. This controls the posture of the female internal thread tube 25 after tightening, ensuring stable operation of the connector. When maintenance or replacement of the connector is required, the operator reverses the rotation of the male plug 1 to separate the male external thread tube 14 from the female internal thread tube 25. The pin 13 is then pulled out of the socket, disconnecting the mechanical connection and electrical conduction between the male plug 1 and the female socket 2, allowing for subsequent operations.

[0037] This utility model is not limited to the above-described preferred embodiments. Anyone should understand that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Finally, it should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

Claims

1. A smart composite photovoltaic connector, comprising a male plug (1) and a female socket (2) that are mutually pluggable, characterized in that: The male plug (1) includes a plug housing (11), a male connector (12) fixed to the front end of the inner cavity of the plug housing (11), and a male cable (15) fixed to the rear end of the plug housing (11) and connected to the rear end of the male connector (12). A pin (13) is fixed to the front end of the male connector (12), and a male temperature sensor (18) is embedded in the inner cavity of the male connector (12). The female connector (2) includes a female housing (21), a female connector plug (23) fixed to the rear end of the female housing (21), and a female cable (22) fixedly connected to the front end of the female housing (21). A female internal thread tube (25) is movably provided on the rear section of the outer ring surface of the female housing (21), and a female temperature sensor (211) is embedded and fixed in the inner cavity of the female connector (23). A heat-conducting ring (214) is embedded and fixed in the inner outer area of ​​the female connector (23), and 3-5 heat-conducting fins (213) penetrating the female connector (23) are fixed in a ring array on the outer ring surface of the heat-conducting ring (214).

2. The intelligent composite photovoltaic connector according to claim 1, characterized in that: The front end face of the plug housing (11) is fixedly connected to a male external thread tube (14), and the inner ring surface of the female internal thread tube (25) is provided with a thread that is compatible with the male external thread tube (14).

3. The intelligent composite photovoltaic connector according to claim 1, characterized in that: The male connector (12) has a temperature measuring hole (16) in the center for the male temperature sensor (18) to be embedded and fixed. The temperature sensing end of the male temperature sensor (18) is in contact with the inner cavity side wall of the male connector (12) to monitor the temperature rise of the male connector (12).

4. The intelligent composite photovoltaic connector according to claim 3, characterized in that: An arc-shaped elastic sheet (17) is fixedly connected to the inner wall of the temperature measuring hole (16), and the arched protruding part of the arc-shaped elastic sheet (17) contacts the front end of the outer shell of the male temperature sensor (18).

5. The intelligent composite photovoltaic connector according to claim 1, characterized in that: A fixing ring (28) is fixedly connected to the front part of the outer ring surface of the female head shell (21), and a cylindrical spring (24) is fixedly connected to the rear end face of the fixing ring (28) and sleeved on the outer ring of the female head shell (21).

6. The intelligent composite photovoltaic connector according to claim 5, characterized in that: The rear end of the cylindrical spring (24) is fixedly connected to a rubber ring (26) that is sleeved on the outer ring of the female head shell (21). Multiple anti-slip grooves are provided on the rear surface of the rubber ring (26) to release the elasticity of the cylindrical spring (24) onto the female head internal thread tube (25) and realize the control of the posture of the female head internal thread tube (25) after it is screwed and locked.

7. The intelligent composite photovoltaic connector according to claim 6, characterized in that: The outer surface of the rubber ring (26) is fixedly connected with 4-6 protrusions (27) in a ring array, which are used to provide the force application point for the forward moving rubber ring (26) and compressing the cylindrical spring (24).

8. The intelligent composite photovoltaic connector according to claim 1, characterized in that: The female connector (23) has a socket on its rear end face for inserting pins (13) and a female temperature measuring hole (29) for fixing and embedding a female temperature sensor (211) in the center of its interior.

9. The intelligent composite photovoltaic connector according to claim 8, characterized in that: An arched elastic sheet (210) is fixedly connected in the inner cavity of the female head temperature measuring hole (29), and the arched protruding part of the arched elastic sheet (210) is in close contact with the outer shell surface of the female head temperature sensor (211).

10. The intelligent composite photovoltaic connector according to claim 1, characterized in that: The female connector (23) has a cavity on its inner and outer sides for the heat-conducting ring (214) to be embedded and fixed. The outer ring surface of the female connector (23) has 3-5 openings (212) in a ring array for the heat-conducting fins (213) to be exposed. The outer end face of the heat-conducting fins (213) is flush with the outer ring surface of the female connector (23). The heat-conducting ring (214) and the heat-conducting fins (213) transfer the heat generated inside the female connector (23) to the outside of the female connector (23) and the female internal thread tube (25).

Images