A quick plug-in unlocked photovoltaic connector
By combining a tapered snap-fit structure with a through-slot and a sealing design for the plug, the problems of inconvenient operation and insufficient sealing of traditional photovoltaic connectors are solved, achieving quick insertion and removal and high sealing performance, thereby improving the installation efficiency and reliability of photovoltaic systems.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN WEICHAT TECH CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional photovoltaic connectors are inconvenient to operate during insertion and removal, require special tools for unlocking, and have insufficient sealing performance in harsh environments, affecting the installation efficiency and long-term operational reliability of photovoltaic systems.
A photovoltaic connector with quick plug-in and unlocking mechanism was designed. It adopts a structure with a tapered buckle and a through groove. The plug and socket can be quickly locked and unlocked by pressing the pressure plate. The sealing design of the plug and the adapter hole enhances the sealing performance. The cable is clamped and sealed by the tail cap, the cable fixing claws and the sealing ring.
It enables fast and reliable mating and unmating operations, improves user experience and mating efficiency, and enhances the sealing performance and protection level of the connector, making it suitable for long-term use in harsh environments.
Smart Images

Figure CN224367279U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connectors, and in particular to a photovoltaic connector with quick plug-in and unlocking mechanism. Background Technology
[0002] Traditional photovoltaic connectors suffer from problems such as inconvenient operation during insertion and removal, reliance on special tools for unlocking, or insufficient sealing performance in harsh environments, which affect the installation efficiency and long-term reliability of photovoltaic systems. Utility Model Content
[0003] In view of the above situation, it is necessary to provide a photovoltaic connector with quick plug-in / unplug capability that solves at least one of the above problems, comprising:
[0004] A socket (1) includes a socket end (11) and a socket housing (12) disposed outside the socket end (11); the socket housing (12) has through grooves (121) on both sides of its top, and the middle of both sides of the socket housing (12) is recessed inward to form a placement area (122) opposite to the through grooves (121); pressure plates (123) are extended on both sides of the socket housing (12) and are located directly above the placement area (122); an adapter hole (124) is opened at the end of the socket housing (12) and is opposite to the socket end (11), the diameter of the adapter hole (124) being larger than the diameter of the socket end (11);
[0005] The plug (2) includes a plug end (21) and a plug housing (22) disposed at the bottom of the plug end (21); the plug housing (22) is provided with tapered buckles (221) with inclined surfaces facing outward on both sides; and a plug portion (23) is provided around the plug end (21);
[0006] When the plug end (21) is inserted into the socket end (11), the conical buckle (221) is embedded in the through groove (121) and engages with the socket housing (12), and the plug part (23) is embedded in the adapter hole (124); by pressing the pressure plate (123), the engagement between the conical buckle (221) and the socket housing (12) is released.
[0007] Preferably, the outer wall of the plug (23) is provided with an annular groove (231), and a sealing ring (232) is fitted inside the annular groove (231).
[0008] Preferably, it also includes a tail cap (3), which is disposed at the tail end of the socket (1) and the tail end of the plug (2); the tail cap (3) includes a tail cap housing (31), a tail cap ring (32) and a soft rubber sleeve (33) from the outside to the inside; a plurality of fixing claws (321) are evenly arranged on the tail cap ring (32); the inner wall of the tail cap housing (31) gradually narrows from its connection end toward the socket housing (12) or the plug housing (22) to its tail end.
[0009] Preferably, the tail cap housing (31) is connected to the socket housing (12) or the plug housing (22) by a thread (311). Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of the photovoltaic connector for quick plugging and unplugging unlocking according to an embodiment of the present invention.
[0011] Figure 2 This is an exploded view of the quick-plug unlocking photovoltaic connector according to an embodiment of the present invention.
[0012] Figure 3 This is an exploded view of the socket according to an embodiment of the present utility model.
[0013] Figure 4 This is an exploded view of the plug according to an embodiment of the present invention.
[0014] Figure 5 This is an exploded view of the tail cap portion of an embodiment of this utility model.
[0015] Figure 6 This is a cross-sectional view of a photovoltaic connector for quick plugging and unplugging according to an embodiment of the present invention. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the photovoltaic connector with quick plug-in and unlocking mechanism of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.
[0017] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0019] Please see Figures 1 to 6A photovoltaic connector for quick plugging and unplugging according to an embodiment of the present invention includes: a socket (1), the socket (1) including a socket end (11) and a socket housing (12) disposed outside the socket end (11); through grooves (121) are provided on both sides of the top of the socket housing (12), and the middle of both sides of the socket housing (12) are recessed inward to form a placement area (122) opposite to the through groove (121), and pressure plates (123) are provided on both sides of the socket housing (12) directly above the placement area (122); an adapter hole (124) is provided at the end of the socket housing (12) facing the socket end (11), and the diameter of the adapter hole (124) is larger than the diameter of the socket end (11); and a plug (2), the plug (2) including a plug end (2 1) and a plug housing (22) disposed at the bottom of the plug end (21); the plug housing (22) is provided with tapered buckles (221) with inclined surfaces facing outward on both sides; a blocking part (23) is provided around the plug end (21); wherein, when the plug end (21) is inserted into the socket end (11), the tapered buckle (221) is embedded in the through groove (121) and engages with the socket housing (12), and the blocking part (23) is embedded in the adapter hole (124); by pressing the pressure plate (123), the engagement between the tapered buckle (221) and the socket housing (12) is released. The specific implementation is as follows: the housings of the socket (1) and the plug (2) are preferably made of high-strength insulating engineering plastic, such as PPO or PC material, to ensure their mechanical strength and electrical insulation performance. The socket end (11) and plug end (21) are provided with conductive terminals (not defined in the claims, but necessary for electrical connection) for achieving electrical connection. The through groove (121) is an opening groove formed on both sides of the top of the socket housing (12), the shape of which is adapted to the conical snap fastener (221) of the plug (2), for guiding and accommodating the conical snap fastener (221). The placement area (122) is a recessed structure on the side wall of the socket housing (12), providing operating space for the finger pressing plate (123). The pressing plate (123) is an integrally formed elastic arm on both sides of the socket housing (12), designed so that when pressed, it can act inward on the conical snap fastener (221) that is already engaged in the through groove (121), or cause the engaging edge of the through groove (121) to elastically displace. The adapter hole (124) is located on the mating surface of the socket (1). Its hole diameter design ensures that the plug (23) can be smoothly inserted and provides a basis for subsequent sealing. The tapered buckle (221) is set on both sides of the plug housing (22), has a certain elasticity, and its inclined surface faces outward, which facilitates sliding into the through groove (121) and automatically engaging when inserted.The plug (23) is a protruding structure formed around the plug end (21). Its outer diameter is smaller than the inner diameter of the adapter hole (124), but larger than the plug diameter of the socket end (11), which serves to initially seal and protect the plug end (21).
[0020] During operation, the plug (2) is aligned with the socket (1) and inserted. The plug end (21) enters the socket end (11) to achieve initial docking of electrical components. At the same time, the conical buckle (221) on the plug housing (22), due to its conical guide surface and its own elasticity, is first compressed by the entrance of the through groove (121), and then smoothly slides into the inside of the through groove (121). It forms a stable engagement with the inner wall of the through groove (121) or a specific engagement structure (such as a protrusion or groove on the inner wall of the through groove), making a "click" sound or providing a clear tactile feel of locking in place, thus completing the locking. Meanwhile, the plug (23) is fully embedded in the adapter hole (124).
[0021] When unlocking, the operator presses the pressure plate (123) located above the placement area (122) with their finger. After the pressure plate (123) is subjected to force, its structural design allows it to directly or indirectly force the conical latch (221) to retract inward or disengage from the engagement surface with the through groove (121). Once the engagement state of the conical latch (221) is released, the plug (2) can be easily pulled out. The entire process does not require any tools and is quick and convenient to operate.
[0022] The beneficial effect of this structure is that the cooperation between the tapered buckle (221) and the through groove (121) achieves fast and reliable locking, while the unique design of the pressure plate (123) and the placement area (122) allows the unlocking operation to be completed simply by pressing with the hand, greatly improving the insertion and removal efficiency and user experience. The cooperation between the plug (23) and the adapter hole (124) increases the sealing performance.
[0023] Please see Figures 1 to 6 In another embodiment, the outer wall of the plug (23) is provided with an annular groove (231), and a sealing ring (232) is fitted inside the annular groove (231).
[0024] The annular groove (231) is a groove machined on the cylindrical or conical outer surface of the plug (23). The sealing ring (232) is preferably an O-ring rubber sealing ring, which can be made of nitrile rubber, silicone rubber or EPDM rubber, etc., and has good elasticity and weather resistance. The outer diameter of the sealing ring (232) is slightly larger than the bottom diameter of the annular groove (231) in the free state, and can be stably installed in the annular groove (231).
[0025] When the plug (2) is inserted into the socket (1), the plug (23) with the sealing ring (232) is embedded in the adapter hole (124). The sealing ring (232) is radially compressed by the inner wall of the adapter hole (124) and fits tightly between the bottom of the annular groove (231) and the inner wall of the adapter hole (124), thereby forming a reliable sealing barrier between the plug (23) and the adapter hole (124).
[0026] The beneficial effect of this structure is that by adding an annular groove (231) and a sealing ring (232) to the plug (23), the waterproof and dustproof performance of the mating interface between the plug (2) and the socket (1) is significantly enhanced, reaching an IP68 or higher protection level, effectively protecting the internal electrical connection from the erosion of external environments such as moisture and dust, and improving the durability of the connector and its working reliability in harsh environments.
[0027] Please see Figures 1 to 6 In another embodiment, a tail cap portion (3) is also included, which is disposed at the tail end of the socket (1) and the tail end of the plug (2); the tail cap portion (3) includes, from the outside to the inside, a tail cap housing (31), a tail cap ring (32), and a soft rubber sleeve (33); a plurality of fixing claws (321) are evenly arranged on the tail cap ring (32); the inner wall of the tail cap housing (31) gradually narrows from its connecting end toward the socket housing (12) or the plug housing (22) to its tail end.
[0028] The tail cap (3) is a component for cable introduction and fixation, and can be installed on the non-mating end of the socket (1) and the non-mating end of the plug (2), respectively. The tail cap housing (31) is usually made of engineering plastic similar to that of the socket housing (12) or the plug housing (22), and its internal cavity forms a tapered channel that gradually narrows from the connecting end (i.e., the end connected to the socket or plug housing) to the tail end (i.e., the cable lead-out end). The tail cap ring (32) is a ring-shaped part with multiple fixing claws (321) evenly distributed around its circumference. These fixing claws (321) may be slightly open outward or point towards the center of the ring in the free state. The soft rubber sleeve (33) is usually made of elastic rubber or silicone and is used to fit over the outside of the cable to be connected, providing cushioning and enhanced sealing.
[0029] During installation, the cable first passes through the end cap housing (31), then is fitted with a soft rubber sleeve (33), and then the end cap ring (32) is fitted over the soft rubber sleeve (33). Subsequently, the end cap housing (31) is connected to the socket housing (12) or the plug housing (22) (e.g., by thread). When the end cap housing (31) is tightened or pressed, its gradually narrowing inner wall compresses the end cap ring (32). Due to the radial pressure on the end cap ring (32), the retaining claws (321) on it are forced to retract inward, thereby tightly clamping the soft rubber sleeve (33), which in turn is compressed and clamps the cable inside.
[0030] The beneficial effect of this structure is that the tapered inner wall of the tail cap housing (31) and the fixing claw (321) on the tail cap ring (32) work together to effectively clamp and seal the introduced cable. This not only prevents the cable from being pulled loose or damaged at the internal connection point, providing reliable stress relief, but also prevents moisture and dust from entering the connector from the cable entry point, further improving the overall protection level and long-term reliability of the connector.
[0031] Please see Figures 1 to 6 In another embodiment, the tail cap housing (31) is connected to the socket housing (12) or the plug housing (22) by a thread (311).
[0032] The inner or outer wall of the connecting end of the tail cap housing (31) is provided with an internal or external thread (forming part of thread 311). Correspondingly, the outer or inner wall of the tail end of the socket housing (12) or the outer or inner wall of the tail end of the plug housing (22) is provided with a mating external or internal thread (forming another part of thread 311). By rotating the tail cap housing (31), it can be axially approached and tightened with the socket housing (12) or the plug housing (22).
[0033] When the tail cap housing (31) is rotated to tighten onto the socket housing (12) or plug housing (22) via the threads (311), the axial movement of the tail cap housing (31) causes its conical inner wall to generate a continuous and uniform radial compressive force on the tail cap ring (32), thereby allowing the retaining claw (321) to stably clamp the soft rubber sleeve (33) and the internal cable. The operator can adjust the clamping force by controlling the tightening torque.
[0034] The beneficial effects of this structure are that the use of threaded (311) connection makes the installation and disassembly of the tail cap housing (31) very convenient, and can provide a strong and stable axial locking force, ensuring that the clamping effect between the various parts of the tail cap (3) and between the tail cap (3) and the cable is durable and reliable, further enhancing the cable's fixing strength and sealing performance. At the same time, the threaded connection also facilitates repeated assembly, disassembly and maintenance.
[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A photovoltaic connector with quick plug-in / unplug capability, characterized in that, include: A socket (1) includes a socket end (11) and a socket housing (12) disposed outside the socket end (11); the socket housing (12) has through grooves (121) on both sides of its top, and the middle of both sides of the socket housing (12) is recessed inward to form a placement area (122) opposite to the through grooves (121); pressure plates (123) are extended on both sides of the socket housing (12) and are located directly above the placement area (122); an adapter hole (124) is opened at the end of the socket housing (12) and is opposite to the socket end (11), the diameter of the adapter hole (124) being larger than the diameter of the socket end (11); The plug (2) includes a plug end (21) and a plug housing (22) disposed at the bottom of the plug end (21); the plug housing (22) is provided with tapered buckles (221) with inclined surfaces facing outward on both sides; and a plug portion (23) is provided around the plug end (21); When the plug end (21) is inserted into the socket end (11), the conical buckle (221) is embedded in the through groove (121) and engages with the socket housing (12), and the plug part (23) is embedded in the adapter hole (124); by pressing the pressure plate (123), the engagement between the conical buckle (221) and the socket housing (12) is released.
2. The photovoltaic connector according to claim 1, characterized in that, The outer wall of the blocking part (23) is provided with an annular groove (231), and a sealing ring (232) is fitted inside the annular groove (231).
3. The photovoltaic connector according to claim 2, characterized in that, It also includes a tail cap (3), which is disposed at the tail end of the socket (1) and the tail end of the plug (2); the tail cap (3) includes a tail cap housing (31), a tail cap ring (32) and a soft rubber sleeve (33) from the outside to the inside; multiple fixing claws (321) are evenly arranged on the tail cap ring (32); the inner wall of the tail cap housing (31) gradually narrows from its connection end toward the socket housing (12) or the plug housing (22) to its tail end.
4. The photovoltaic connector according to claim 3, characterized in that, The tail cap housing (31) is connected to the socket housing (12) or the plug housing (22) by a thread (311).