A single buckle integrated high-bearing waterproof electrical connector
By using a single wide-body arch-shaped locking mechanism with wedge-shaped blocks, combined with O-rings and threaded connectors, the problem of cumbersome operation and insufficient reliability of existing electrical connectors is solved. This achieves fast and reliable one-handed locking and all-around waterproofing, improving the mechanical strength and waterproof performance of the connector.
Patent Information
- Application Number
- CN202521861144.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-30
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-30
AI Technical Summary
Existing electrical connectors are cumbersome to operate and their reliability is difficult to guarantee, especially in "blind mating" situations where space is limited or where direct vision is not possible. It is difficult to ensure that all latches engage simultaneously and completely, resulting in weak connections that are prone to loosening, posing safety hazards, and increasing manufacturing costs and potential failure points.
The locking mechanism employs a single wide-body arch-shaped connecting buckle and a wedge-shaped connecting block, combined with an O-ring and a threaded connector, to achieve quick one-handed locking and all-around waterproofing. A T-shaped positioning block prevents misinsertion and ensures even distribution of locking force and a tight seal.
It achieves fast and reliable one-handed locking, improves operational efficiency, enhances the mechanical strength and waterproof performance of the connector, reduces failure points and production costs, and ensures connection stability and sealing.
Smart Images

Figure CN224683513U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, and in particular to a single-clamp integrated high-load-bearing waterproof electrical connector. Background Technology
[0002] Connectors, as key components for the transmission and exchange of electrical signals and power, form the foundation of a complete electrical system. They are widely used in numerous fields such as new energy vehicles, rail transportation, industrial automation, aerospace, communication equipment, and outdoor exploration. As modern industrial technology advances towards high integration, high reliability, and intelligence, the performance requirements for electrical connectors are becoming increasingly stringent. The market not only demands excellent electrical performance but also sets higher standards for their mechanical strength, vibration resistance, waterproof sealing, and ease of operation under complex working conditions.
[0003] In existing technologies, to ensure that electrical connectors can resist vibration, impact, and accidental tensile forces after mating, threaded connections or multi-point locking methods are typically used. Threaded connections involve a rotatable coupling nut at one end of the connector and a matching external thread at the other. Rotating the nut several times brings the male and female ends closer together and tightens them. This method provides a strong connection and good vibration resistance. Multi-point locking methods, on the other hand, involve distributing two or more independent elastic latches or claws around the circumference of the connector housing. During mating, these distributed latches engage with corresponding slots or bosses on the other housing, simultaneously locking at multiple points to secure the connector.
[0004] However, the aforementioned traditional locking methods have significant shortcomings in terms of operational efficiency and structural reliability. Taking the multi-point snap-fit structure as an example, its core problem lies in the cumbersome locking process and the difficulty in guaranteeing reliability. Because multiple snaps are distributed in different positions on the connector housing, during insertion, especially in confined spaces or "blind insertion" situations where direct vision is impossible, it is difficult for operators to apply uniform pressure to ensure that all snaps engage simultaneously and completely. This easily leads to a "false lock" state where some snaps are locked while others are not effectively engaged. Operators may mistakenly judge the connection as complete based on feel or a faint sound, when in reality the connection is not secure. This incomplete connection is prone to loosening when the equipment encounters vibration or pulling during operation, causing electrical connection interruption and posing serious safety hazards. Furthermore, multiple independent snap-fit structures increase mold complexity and manufacturing costs, and each small snap-fit is a potential structural weak point, making it more prone to breakage during use, thus reducing the overall lifespan and reliability of the connector. Therefore, a single-snap-fit integrated high-load-bearing waterproof electrical connector is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a single-clamp integrated high-load-bearing waterproof electrical connector, which aims to improve the problem in the prior art connectors where it is difficult for operators to apply uniform pressure to ensure that all clips are simultaneously and completely engaged during insertion, especially in "blind insertion" situations where space is limited or direct vision is not possible.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a single-clamp integrated high-load-bearing waterproof electrical connector, comprising:
[0007] A male core body, wherein at least one male core pin terminal is provided inside the male core body;
[0008] The female connector body has a female socket terminal that mates with the male core pin terminal, and the female connector body is adapted to be inserted into the male core body;
[0009] The female connector is fixed to one side of the female connector body and is integrally formed with the female connector body.
[0010] The electrical connector also includes a locking mechanism and a waterproof mechanism; the locking mechanism is used to lock the male core body and the female connector body after they are inserted, and includes a connecting buckle integrally formed on the outer wall of the male core body, and a connecting block disposed on the outer wall of the female connector body that engages with the connecting buckle;
[0011] The waterproof mechanism is used to form a waterproof seal between the male core body and the female body.
[0012] As a further description of the above technical solution:
[0013] The waterproof mechanism includes a male rubber core O-ring waterproof ring disposed on the outer wall of the male rubber core body; when the male rubber core body is inserted into the female socket body, the male rubber core O-ring waterproof ring is pressed against the inner wall of the female socket plug to form an interface seal.
[0014] As a further description of the above technical solution:
[0015] The outer walls of the male core body and the female base body are also provided with an integrally formed T-shaped positioning block, which is used to prevent mistaken insertion and guide during insertion.
[0016] As a further description of the above technical solution:
[0017] The male rubber core body has an integrally formed male rubber core threaded connector at its tail end. The male rubber core threaded connector has a male rubber core sealing ring groove inside. The female seat body has a corrugated sealing ring fitted on the side near the male rubber core O-ring waterproof ring.
[0018] As a further description of the above technical solution:
[0019] The outer wall of the female socket body is also provided with an annular groove for installing the female socket O-ring waterproof seal, which is used to provide a waterproof seal when the female socket body is installed on the equipment panel.
[0020] As a further description of the above technical solution:
[0021] The connecting buckle is an elastic arch structure; the connecting block is a wedge-shaped protrusion; when the male core body and the female body are inserted into place, the connecting buckle passes over and engages behind the connecting block to achieve locking.
[0022] As a further description of the above technical solution:
[0023] The number of connecting clips is one, and the width of the connecting clip is greater than one-quarter of the circumference of the male core body.
[0024] As a further description of the above technical solution:
[0025] The female connector body has an integrally formed female socket threaded connector at its tail end, which is used to connect cables or for fixed installation.
[0026] This utility model has the following beneficial effects:
[0027] 1. In this utility model, the connector abandons the traditional multi-clamp or threaded locking method and designs a wide, elastic arch-shaped connecting buckle on the male core body. This design allows the insertion and locking actions to be completed in one step. The operator only needs to push it in with one hand to hear a crisp locking sound, realizing quick blind insertion. This single-clamp structure has strong load-bearing capacity, uniform locking force distribution, and effectively resists vibration and accidental pull-out. Compared with the traditional multi-point locking structure, it has fewer parts, fewer failure points, lower production costs, and higher reliability.
[0028] 2. In this invention, a reliable radial seal is formed at the male-female interface by a male O-ring waterproof seal; secondly, an axial seal is achieved when the connector is installed on the equipment panel by a female O-ring waterproof seal; finally, the male threaded connector, in conjunction with the internal sealing ring, effectively clamps and waterproofs the cable introduced at the rear. These waterproof structures, combined with a robust single-clamp locking mechanism, ensure that the sealing ring can be fully compressed, thereby achieving a high level of waterproof protection throughout the entire connection from the cable to the equipment. Attached Figure Description
[0029] Figure 1 This is a three-dimensional structural diagram of a single-clamp integrated high-load-bearing waterproof electrical connector proposed in this utility model;
[0030] Figure 2 This is a disassembled schematic diagram of a single-clamp integrated high-load-bearing waterproof electrical connector proposed in this utility model;
[0031] Figure 3 A schematic diagram of the female plug portion of a single-clamp integrated high-load-bearing waterproof electrical connector proposed in this utility model.
[0032] Figure 4 This is a schematic diagram of the female socket terminal portion of a single-clamp integrated high-load-bearing waterproof electrical connector proposed in this utility model.
[0033] Legend:
[0034] 1. Male rubber core body; 2. Female socket body; 3. Connecting buckle; 4. Connecting block; 5. Female socket plug; 6. Male rubber core O-ring waterproof ring; 7. Corrugated sealing ring; 8. Female socket O-ring waterproof ring; 9. Male rubber core threaded connector; 10. Male rubber core sealing ring groove; 11. Female socket threaded connector; 12. T-shaped positioning block; 13. Female socket socket terminal; 14. Male rubber core pin terminal. Detailed Implementation
[0035] 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 described embodiments 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 protection scope of the present utility model.
[0036] Reference Figures 1-4 One embodiment of this utility model is a single-clamp integrated high-load-bearing waterproof electrical connector, comprising:
[0037] The male core body 1 serves as the male part of the connector, providing insulation protection and mechanical support for the internal pin terminals. The male core body 1 contains at least one male core pin terminal 14, which is the male electrode that enables circuit conduction.
[0038] The female connector body 2, as the female head part of the connector, cooperates with the male core body 1 to form a complete connector structure. The female connector body 2 is provided with a female socket terminal 13 that cooperates with the male core pin terminal 14. The female socket terminal 13 is a female end electrode that matches the male core pin terminal 14. The female connector body 2 is suitable for insertion into the male core body 1.
[0039] The female plug 5 is the front end of the female body 2. Its inner wall is the key interface for forming the main waterproof seal. The female plug 5 is fixed to one side of the female body 2 and is integrally formed with the female body 2.
[0040] The electrical connector also includes a locking mechanism and a waterproof mechanism; the locking mechanism provides mechanical fastening capability, while the waterproof mechanism ensures its electrical reliability in humid environments; the locking mechanism is used to lock the male core body 1 and the female connector body 2 after insertion, and includes a connecting buckle 3 integrally formed on the outer wall of the male core body 1, the connecting buckle 3 being the active component of the locking action, achieving locking and unlocking through its elastic deformation, and a connecting block 4 disposed on the outer wall of the female connector body 2 that engages with the connecting buckle 3; the connecting block 4 being the passive component of the locking mechanism, providing a secure engagement point for the connecting buckle 3;
[0041] The waterproof mechanism is used to form a waterproof seal between the male core body 1 and the female connector body 2. The waterproof mechanism includes a male core O-ring waterproof seal 6 disposed on the outer wall of the male core body 1. The male core O-ring waterproof seal 6 is the core sealing component for achieving waterproofing at the male-female interface. When the male core body 1 is inserted into the female connector body 2, the male core O-ring waterproof seal 6 is pressed against the inner wall of the female connector plug 5 to form an interface seal. This radial sealing method effectively prevents moisture from intruding through the mating gap. A T-shaped positioning block 12 is also integrally formed on the outer walls of the male core body 1 and the female connector body 2. Block 12 serves as a foolproof and guiding structure, preventing and guiding during insertion; this structure ensures that the male and female terminals can only be inserted in the single correct orientation, preventing damage; the tail end of the male core body 1 is integrally formed with a male core threaded connector 9, which is used to connect and fix the cable sheath at the rear end. The male core threaded connector 9 has a male core sealing ring groove 10 inside, providing a location for installing cable seals. The female body 2 has a corrugated sealing ring 7 fitted on the side near the male core O-ring waterproof ring 6; the corrugated sealing ring 7 serves as a... An auxiliary seal prevents large dust particles and water droplets from approaching the main interface sealing area. The outer wall of the female connector body 2 also features an annular groove for installing the female socket O-ring 8. This groove provides precise positioning for the mounting surface seal. The female socket O-ring 8 provides a waterproof seal when the female connector body 2 is mounted on the equipment panel. This seal ensures watertightness between the connector and the equipment housing. The connecting clip 3 is a resilient arch structure. This arch shape allows it to produce stable, recoverable elastic deformation under pressure. The connecting block 4 is a wedge-shaped protrusion. The beveled guide clip 3 smoothly passes over the connector, while its upright rear wall provides a reliable locking surface. When the male core body 1 and the female connector body 2 are inserted into place, the connector clip 3 passes over and engages behind the connector block 4, achieving a lock. There is only one connector clip 3, and its width is greater than one-quarter of the circumference of the male core body 1. This wide-body single-clip design concentrates the locking force in one place, ensuring ease of operation and high locking strength. The tail end of the female connector body 2 has an integrally formed female socket threaded connector 11 for connecting cables or for fixed installation. This provides a reliable interface for the connection and protection of the rear wiring harness.
[0042] Specifically, its core lies in a wide-bodied, arch-shaped single-connection latch 3, which, together with a wedge-shaped connecting block 4, enables a crisp locking function with a single-handed push, greatly improving operational efficiency. In terms of waterproofing, a multi-layered protection system is constructed through the main seal of the mating interface using the male O-ring waterproof seal 6, the seal of the equipment mounting surface using the female O-ring waterproof seal 8, and the seal of the cable entry point using the male threaded connector 9 and the female threaded connector 11. Simultaneously, the design of the T-shaped positioning block 12 fundamentally eliminates the risk of mis-insertion. The entire design integrates powerful mechanical locking performance with a meticulous waterproof structure, ensuring the connector's long-term stable operation in harsh environments.
[0043] Working principle: When using this connector, firstly, before insertion, the operator needs to align the male core body 1 with the female socket body 2. After alignment, the operator pushes the male core body 1 forward to insert it into the female socket body 2. During this process, the male core pin terminal 14 smoothly slides into the female socket hole terminal 13, completing the establishment of the electrical path. At the same time, the male core O-ring waterproof ring 6 located at the front end of the male core body 1 is pushed into the inner wall of the female socket plug 5 and is evenly compressed, forming the first crucial waterproof seal.
[0044] Finally, as the connector is about to be fully inserted, the inclined surface of the elastic connecting clip 3 on the male connector body 1 slides over the wedge-shaped connecting block 4 on the female connector body 2. After passing the apex, it quickly rebounds due to its own elasticity, firmly locking behind the connecting block 4 with a "click" sound, indicating that the locking action is complete. This single-point, wide-body locking structure provides strong mechanical locking force, ensuring the stability of the electrical connection and the long-term effectiveness of the waterproof seal. For disassembly, simply press the connecting clip 3 past the block to easily pull it out.
[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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.
Claims
1. A single-clamp integrated high-load-bearing waterproof electrical connector, characterized in that, include: Male core body (1), wherein at least one male core pin terminal (14) is provided inside the male core body (1); The female connector body (2) has a female socket terminal (13) inside which it is provided to cooperate with the male core pin terminal (14). The female connector body (2) is adapted to be inserted into the male core body (1). The female plug (5) is fixed to one side of the female body (2) and integrally formed with the female body (2); The electrical connector also includes a locking mechanism and a waterproof mechanism; the locking mechanism is used to lock the male core body (1) and the female body (2) after insertion, and includes a connecting buckle (3) integrally formed on the outer wall of the male core body (1), and a connecting block (4) disposed on the outer wall of the female body (2) and engaged with the connecting buckle (3). The waterproof mechanism is used to form a waterproof seal between the male core body (1) and the female body (2).
2. The single-clamp integrated high-load-bearing waterproof electrical connector according to claim 1, characterized in that: The waterproof mechanism includes a male rubber core O-ring (6) disposed on the outer wall of the male rubber core body (1); when the male rubber core body (1) is inserted into the female body (2), the male rubber core O-ring (6) is pressed against the inner wall of the female plug (5) to form an interface seal.
3. The single-clamp integrated high-load-bearing waterproof electrical connector according to claim 1, characterized in that: The outer walls of the male core body (1) and the female body (2) are also provided with an integrally formed T-shaped positioning block (12) for preventing mistake and guiding during insertion.
4. The single-clamp integrated high-load-bearing waterproof electrical connector according to claim 1, characterized in that: The male rubber core body (1) has a male rubber core threaded connector (9) integrally formed at its tail end. The male rubber core threaded connector (9) has a male rubber core sealing ring groove (10) inside. The female seat body (2) has a corrugated sealing ring (7) fitted on the side near the male rubber core O-ring waterproof ring (6).
5. The single-clamp integrated high-load-bearing waterproof electrical connector according to claim 1, characterized in that: The outer wall of the female socket body (2) is also provided with an annular groove for installing the female socket O-ring waterproof ring (8), which is used to provide a waterproof seal when the female socket body (2) is installed on the equipment panel.
6. The single-clamp integrated high-load-bearing waterproof electrical connector according to claim 1, characterized in that: The connecting buckle (3) is an elastic arch structure; the connecting block (4) is a wedge-shaped protrusion; when the male core body (1) and the female body (2) are inserted into place, the connecting buckle (3) passes over and engages behind the connecting block (4) to achieve locking.
7. The single-clamp integrated high-load-bearing waterproof electrical connector according to claim 1, characterized in that: The number of connecting buckles (3) is one, and the width of the connecting buckle (3) is greater than one-quarter of the circumference of the male core body (1).
8. The single-clamp integrated high-load-bearing waterproof electrical connector according to claim 1, characterized in that: The female socket body (2) has an integrally formed female socket threaded connector (11) at its tail end, which is used to connect cables or for fixed installation.