A double-locking anti-loosening power connector

By employing a double-locking design and a rubber waterproof membrane structure, the problems of traditional power connectors loosening in extreme environments and being waterproof and dustproof are solved, thereby improving stability and safety.

CN224288761UActive Publication Date: 2026-05-26SHENZHEN CHANGJIANG CONNECTOR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN CHANGJIANG CONNECTOR CO LTD
Filing Date
2025-05-22
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional power connectors are prone to loosening in high-performance computing, electric vehicles, and portable electronic products, and their waterproof and dustproof performance is insufficient, making it difficult to provide safety and ease of use in extreme environments.

Method used

It adopts a double-locking design and a rubber waterproof membrane structure, combined with spring preload, to ensure tight contact of the electrodes and prevent loosening, while providing waterproof and dustproof functions.

Benefits of technology

It improves the stability and durability of connectors, prevents loosening and the ingress of moisture and dust, extends service life, and enhances the safety and reliability of electrical connections.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a double-locking anti-loosening power connector, including a plug, one end of which is connected to a connector base. Both sides of the plug are provided with elastic latches. A socket panel is fixedly connected to one side of the connector base. The socket panel has a semi-circular protrusion, and a protruding ring is fixedly connected to the socket panel. A locking groove is formed between the connector base and the protruding ring. The application of springs in this utility model not only provides necessary cushioning for the electrodes but also ensures tight contact between the electrodes and their corresponding interfaces. When the connector is subjected to external impact or vibration, the springs can effectively absorb these external forces, preventing electrode damage or displacement caused by direct impact, greatly improving the durability and stability of the device.
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Description

Technical Field

[0001] This utility model relates to connectors, and more specifically, to a double-locking anti-loosening power connector. Background Technology

[0002] With the widespread adoption and diversification of electronic devices, power connectors, as crucial components for power transmission, play a vital role in ensuring electrical safety and improving connection stability. Early power connectors primarily focused on achieving basic current transmission functions, resulting in relatively simple designs and basic structures. However, with technological advancements, particularly driven by demands in high-performance computing, electric vehicles, and various portable electronic products, the requirements for power connectors have become increasingly stringent. They must not only withstand higher power outputs but also possess features such as anti-loosening, waterproofing, and dustproofing to meet the needs of diverse application scenarios. Especially in extreme environments, such as industrial automated production lines and outdoor power facility maintenance, traditional power connectors often fall short in providing sufficient safety and ease of use.

[0003] Although some improved power connectors have been developed for the market, these designs still have certain limitations. On the one hand, the single-lock design is prone to failure under significant external force, leading to accidental connector detachment. On the other hand, the requirements for waterproof and dustproof performance are not fully met, especially when used in high humidity or dusty environments, where traditional designs struggle to effectively prevent moisture and dust from entering the connector, thus affecting its lifespan and safety. Utility Model Content

[0004] One objective of this invention is to provide a new technical solution for a double-locking anti-loosening power connector.

[0005] According to a first aspect of this utility model, a double-locking anti-loosening power connector is provided, including a plug, one end of which is connected to a connector base, and elastic latches on both sides of the plug. A socket panel is fixedly connected to one side of the connector base, and a semi-circular protrusion is provided on the socket panel. A protruding ring is fixedly connected to the socket panel, and a latching groove is formed between the connector base and the protruding ring. An electrode is provided inside the connector base, and a rubber waterproof plate is provided inside the connector base. An electrode fixing plate is provided on one side of the rubber waterproof plate, a spring is provided on one side of the electrode fixing plate, and an anti-loosening plate is provided on one side of the rubber waterproof plate. The anti-loosening plate is fixedly connected to the socket panel.

[0006] Optionally, a first connecting ear is fixedly connected to the connector, and a second connecting ear is fixedly connected to the plug, with mounting holes provided on both the first and second connecting ears.

[0007] Optionally, four extension plates are fixedly connected to the anti-detachment plate, and the rubber waterproof plate is disposed between the four extension plates.

[0008] Optionally, a fixing sleeve is fixedly connected to the rear of the electrode fixing plate, the end of the electrode is connected to the fixing sleeve, a positioning post is fixedly connected to the rear of the fixing sleeve, an annular plate is fixedly connected to the positioning post, and the spring is sleeved on the positioning post.

[0009] Optionally, the end of the plug is fitted with a wiring sleeve, the plug has a semi-circular groove, and the elastic latch has a pressing part and a locking part.

[0010] Optionally, a wire is fixedly connected to the fixing sleeve, and a wire hole is provided at the lower part of the connecting seat, with a sealing layer inside the wire hole.

[0011] According to one embodiment of this disclosure, an electrode fixing structure under spring preload, along with an optimized rubber waterproof membrane and a double-locking mechanism, brings significant technical advantages and beneficial effects. Firstly, the application of springs in this application not only provides the necessary buffering function for the electrodes but also ensures tight contact between the electrodes and their corresponding interfaces. When the connector is subjected to external impacts or vibrations, the springs can effectively absorb these external forces, preventing electrode damage or displacement caused by direct impact, greatly improving the durability and stability of the equipment. Furthermore, the spring preload ensures that the electrodes always maintain optimal contact pressure, preventing problems such as arcing and overheating due to poor contact, thereby further enhancing the safety of the electrical connection.

[0012] Secondly, the rubber waterproof membrane cleverly combines dustproofing, waterproofing, and cushioning functions. In practical use, dust and moisture are significant factors affecting the performance and lifespan of power connectors. The rubber waterproof membrane in this invention not only effectively prevents external dust and moisture from entering the connector, protecting internal components from corrosion, but also provides cushioning during insertion and removal, extending the connector's lifespan. This design is particularly crucial in high-humidity or dusty working environments, significantly improving equipment reliability and environmental adaptability.

[0013] The double-locking mechanism, with its elastic latches on both sides of the plug, along with the semi-circular protrusions and locking slots on the socket panel, achieves a more secure and reliable connection. Once the connector is correctly inserted and locked, the double latches provide higher tensile strength and a more stable connection than a single latch, preventing loosening even under accidental pulling or vibration. Furthermore, the latch structure is designed for ease of use; users can easily unlock it by pressing, making installation and removal quick and safe.

[0014] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0016] Figure 1 This is a schematic diagram of the connected structure of a double-locking anti-loosening power connector in one embodiment;

[0017] Figure 2 This is a schematic diagram of the pre-connection structure of a double-locking anti-loosening power connector in one embodiment;

[0018] Figure 3 This is a schematic diagram of the socket panel structure of a double-locking anti-loosening power connector in one embodiment;

[0019] Figure 4 This is a schematic diagram of the lower structure of the connector base of a double-locking anti-loosening power connector in one embodiment;

[0020] Figure 5 This is a schematic diagram of the exploded structure of a connector base of a double-locking anti-loosening power connector in one embodiment.

[0021] Figure 6 This is a schematic diagram of the plug structure of a double-locking anti-loosening power connector in one embodiment.

[0022] The diagram shows the following: 1. Connector; 2. Plug; 3. Locking slot; 4. Raised ring; 5. Elastic lock; 51. Locking part; 52. Pressing part; 6. Second connecting ear; 7. First connecting ear; 8. Socket panel; 9. Anti-disengagement plate; 10. Extension plate; 11. Rubber waterproof plate; 12. Electrode fixing plate; 13. Fixing sleeve; 14. Positioning post; 15. Spring; 16. Wire; 17. Electrode; 18. Wiring sleeve; 19. Semi-circular groove; 20. Semi-circular protrusion; 21. Wire hole. Detailed Implementation

[0023] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0024] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0025] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0026] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0027] like Figure 1-6 As shown, a double-locking anti-loosening power connector includes a plug 2, one end of which is connected to a connector 1. Both sides of the plug 2 are provided with elastic latches 5. A socket panel 8 is fixedly connected to one side of the connector 1. A semi-circular protrusion 20 is provided on the socket panel 8. A protruding ring 4 is fixedly connected to the socket panel 8. A latching groove 3 is formed between the connector 1 and the protruding ring 4. An electrode 17 is provided inside the connector 1. A rubber waterproof plate 11 is provided inside the connector 1. An electrode fixing plate 12 is provided on one side of the rubber waterproof plate 11. A spring 15 is provided on one side of the electrode fixing plate 12. An anti-loosening plate 9 is provided on one side of the rubber waterproof plate 11. The anti-loosening plate 9 is fixedly connected to the socket panel 8.

[0028] A first connecting ear 7 is fixedly connected to the connector 1, and a second connecting ear 6 is fixedly connected to the plug 2. Both the first connecting ear 7 and the second connecting ear 6 are provided with mounting holes.

[0029] Four extension plates 10 are fixedly connected to the anti-detachment plate 9, and a rubber waterproof plate 11 is set between the four extension plates 10.

[0030] A fixing sleeve 13 is fixedly connected to the rear of the electrode fixing plate 12. The end of the electrode 17 is connected to the fixing sleeve 13. A positioning post 14 is fixedly connected to the rear of the fixing sleeve 13. An annular plate is fixedly connected to the positioning post 14. A spring 15 is sleeved on the positioning post 14.

[0031] The end of the plug 2 is fitted with a wiring sleeve 18, the plug 2 is provided with a semi-circular groove 19, and the elastic lock 5 is provided with a pressing part 52 and a locking part 51.

[0032] A wire 16 is fixedly connected to the fixed sleeve 13, and a wire hole 21 is provided at the lower part of the connecting seat 1. The inside of the wire hole 21 is provided with a sealing layer.

[0033] In the aforementioned double-locking anti-loosening power connector, during connection, the user needs to align the plug 2 with the socket panel 8 on the connector 1 and push it in along the designed direction. During this process, the elastic latches 5 on both sides of the plug 2 will engage in the latching grooves 3 formed by the connector 1 and the protruding ring 4, achieving initial fixation.

[0034] As the plug 2 is inserted deeper, the rubber waterproof plate 11 located inside the connector 1 begins to function. The rubber waterproof plate 11 not only effectively prevents external dust and moisture from entering the connector, but also provides necessary cushioning when the electrode 17 is inserted, reducing direct friction between hard materials and protecting the connection between the electrode 17 and the retaining sleeve 13 from damage. Simultaneously, the electrode retaining plate 12, located on one side of the rubber waterproof plate 11, ensures, through the pre-tightening force provided by the spring 15, that the electrode 17 fits tightly against the corresponding interface after insertion, preventing arcing or overheating due to poor contact.

[0035] Furthermore, a double-locking mechanism is employed to enhance the overall stability of the connector. When the plug 2 is pushed to its deepest position, the mounting holes on the first connecting ear 7 and the second connecting ear 6 can be used for additional securing measures via bolts; while the locking part 51 on the elastic locking buckle 5 ensures that the plug 2 will not easily fall off the connector 1 even under accidental pulling or vibration. To disconnect, simply press the pressing part 52 to disengage the locking part 51 from the locking groove 3, and the plug 2 can be easily pulled out.

[0036] Considering the need for stability and ease of maintenance of electrode 17, a fixing sleeve 13 is provided at the rear of electrode fixing plate 12. An annular plate is provided on positioning post 14, and spring 15 is sleeved on it, thereby providing continuous and stable preload force for electrode 17. In addition, a wiring sleeve 18 is embedded at the end of plug 2 for easy use with electrode 17. The wire hole 21 at the lower part of connector 1 is provided with a sealing layer, which not only ensures that the wire 16 can pass through smoothly, but also provides a good sealing effect to prevent moisture intrusion.

[0037] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A double-locking anti-loosening power supply connector comprising a plug (2), characterized in that: One end of the plug (2) is connected to a connector (1). Both sides of the plug (2) are provided with elastic latches (5). One side of the connector (1) is fixedly connected to a socket panel (8). The socket panel (8) is provided with a semi-circular protrusion (20). The socket panel (8) is fixedly connected with a protruding ring (4). A latch groove (3) is formed between the connector (1) and the protruding ring (4). An electrode (17) is provided inside the connector (1). A rubber waterproof plate (11) is provided inside the connector (1). An electrode fixing plate (12) is provided on one side of the rubber waterproof plate (11). A spring (15) is provided on one side of the electrode fixing plate (12). An anti-disengagement plate (9) is provided on one side of the rubber waterproof plate (11). The anti-disengagement plate (9) is fixedly connected to the socket panel (8).

2. The dual-locking snap-in power connector of claim 1, wherein: A first connecting ear (7) is fixedly connected to the connector (1), and a second connecting ear (6) is fixedly connected to the plug (2). Both the first connecting ear (7) and the second connecting ear (6) have mounting holes.

3. The double-locking anti-loosening power connector according to claim 1, characterized in that: Four extension plates (10) are fixedly connected to the anti-detachment plate (9), and the rubber waterproof plate (11) is disposed between the four extension plates (10).

4. The double-locking anti-loosening power connector according to claim 1, characterized in that: The electrode fixing plate (12) is fixedly connected to the rear of the fixing sleeve (13), the end of the electrode (17) is connected to the fixing sleeve (13), the fixing sleeve (13) is fixedly connected to the rear of the fixing sleeve (13), the positioning post (14) is fixedly connected to the positioning post (14), and the spring (15) is sleeved on the positioning post (14).

5. A double-locking anti-loosening power connector according to claim 4, characterized in that: The end of the plug (2) is fitted with a wiring sleeve (18), the plug (2) is provided with a semi-circular groove (19), and the elastic latch (5) is provided with a pressing part (52) and a latching part (51).

6. A double-locking anti-loosening power connector according to claim 4, characterized in that: A wire (16) is fixedly connected to the fixed sleeve (13), and a wire hole (21) is provided at the lower part of the connecting seat (1), and a sealing layer is provided inside the wire hole (21).