A cable quick-connect joint
Patent Information
- Application Number
- CN202522521260.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-27
AI Technical Summary
[0003]本实用新型的目的在于提供一种电缆快速连接接头，以解决上述背景技术中提出现有技术中导线连接器防护等级低、接触电阻大、机械寿命短、适配性差的问题
本实用新型的防护性能优异：防护等级达IP67，可在潮湿、多尘等恶劣环境中可靠工作，适用于户外及复杂工业场景；导电性能佳：接触电阻≤25μΩ，大电流传输时发热少，电能传输效率高，安全性好；机械寿命长：机械寿命＞10000次，可满足频繁插拔或长期使用的需求；适配性强：适配多种截面规格的电缆，使用范围广，降低了不同场景下的选型难度；安装便捷可靠：通过观察孔、铆压工艺及卡簧式连接结构，确保安装到位，连接拉力≥2000N，连接稳固。
Smart Images
Figure CN224908616U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical connection device technology, specifically a cable quick connection connector. Background Technology
[0002] In power engineering construction, equipment maintenance, or emergency repair scenarios, quickly connecting two cable sections can significantly shorten construction or repair time and improve work efficiency. For example, during power outage repairs, power supply can be restored rapidly, reducing losses caused by power outages. This is especially true for high-current (e.g., hundreds of amperes) conductor connections. Traditional conductor connections, which use screws to interlock copper lugs, have several shortcomings: 1. The protection level is low, which makes it difficult to meet the IP67 waterproof and dustproof requirements. It is prone to leakage and short circuit faults in humid, dusty or outdoor environments. 2. High contact resistance makes it prone to overheating during high current transmission, affecting power transmission efficiency and even posing safety hazards; 3. Short mechanical lifespan and limited number of insertion / removal cycles, which cannot meet the needs of frequent maintenance or long-term use; 4. Poor adaptability; difficult to be compatible with cables of various cross-sectional specifications, resulting in significant limitations in its use. Utility Model Content
[0003] The purpose of this utility model is to provide a quick-connect cable connector to solve the problems mentioned in the background art, such as low protection level, high contact resistance, short mechanical life and poor adaptability of existing wire connectors.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a cable quick-connect connector, comprising a male connector and a female connector for interlocking with the male connector. The male connector includes a male plastic shell and a male metal body, one end of which is electrically connected to the male plastic shell. The female connector includes a female plastic shell and a female metal body, one end of which is electrically connected to the female plastic shell. When the male connector and the female connector are connected, the male plastic shell and the female plastic shell interlock. An indicator structure is also provided between the male connector and the female connector for indicating when the male connector and the female connector are properly connected.
[0005] Preferably, the male connector further includes a male waterproof gland body and a male locking nut, the male waterproof gland body is fitted onto the surface of the male metal body, and the male plastic shell is threadedly connected to the male waterproof gland body.
[0006] Preferably, a male locking nut is fitted onto the main body of the male metal part, and the male locking nut is threadedly connected to the main body of the male waterproof gland.
[0007] Preferably, the female connector further includes a waterproof female gland body and a female locking nut. The waterproof female gland body is fitted onto the surface of the metal female body, and the plastic female shell is threadedly connected to the waterproof female gland body.
[0008] Preferably, a female locking nut is fitted onto the main body of the female metal part, and the female locking nut is threadedly connected to the main body of the female waterproof gland.
[0009] Preferably, the indicating structure includes a mating indicator slot and an observation hole. The surfaces of both the male and female plastic housings are provided with the mating indicator slot and the observation hole. The mating indicator slot is used to indicate the position after the male connector and the indicating structure are mated, while the observation hole is used to confirm whether the wire core of the male metal body and the female plastic housing is inserted into the male and female plastic housings.
[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention boasts superior protective performance: an IP67 protection rating, enabling reliable operation in harsh environments such as humid and dusty conditions, suitable for outdoor and complex industrial scenarios; excellent conductivity: contact resistance ≤25μΩ, resulting in low heat generation during high current transmission, high power transmission efficiency, and good safety; long mechanical life: mechanical life >10,000 cycles, meeting the needs of frequent plugging and unplugging or long-term use; strong adaptability: compatible with various cable cross-sections, offering a wide range of applications and reducing the difficulty of selection in different scenarios; convenient and reliable installation: through observation holes, riveting process, and spring clip connection structure, installation is ensured to be in place, with a connection tensile force ≥2000N, ensuring a stable connection. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the male-female plug-in structure of this utility model; Figure 2 This is a schematic diagram of the main structure of the male connector of this utility model; Figure 3 This is a schematic diagram of the main structure of the female connector of this utility model; Figure 4 This is a schematic diagram of the exploded structure of the male connector of this utility model; Figure 5 This is a schematic diagram of the exploded structure of the female connector of this utility model.
[0012] In the diagram: 1. Male connector; 11. Male connector plastic shell; 12. Male connector metal body; 13. Male connector waterproof gland body; 14. Male connector locking nut; 2. Female connector; 21. Female connector plastic shell; 22. Female connector metal body; 23. Female connector waterproof gland body; 24. Female connector locking nut; 3. Indicator structure; 31. Interlocking indicator groove; 32. Observation hole. Detailed Implementation
[0013] 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, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0014] The structure of the cable quick-connect connector provided by this utility model is as follows: Figure 1 , Figure 2 as well as Figure 4 As shown, it includes a male connector 1 and a female connector 2 for mating with the male connector 1. The male connector 1 includes a male plastic shell 11 and a male metal body 12. One end of the male metal body 12 is electrically connected to the male plastic shell 11. The male connector 1 also includes a male waterproof gland body 13 and a male locking nut 14. The male waterproof gland body 13 is fitted on the surface of the male metal body 12, and the male plastic shell 11 and the male waterproof gland body 13 are threaded together. The male locking nut 14 is fitted on the male metal body 12, and the male locking nut 14 is threaded together with the male waterproof gland body 13.
[0015] During implementation, the outer sheath of the conductor in the male metal body 12 is stripped to expose the wire core. Then, the male waterproof gland body 13 and the male locking nut 14 are respectively fitted onto the male metal body 12 in the correct direction, and the male locking nut 14 is tightened onto the male waterproof gland body 13. Next, the stripped wire cores of the male metal body 12 are inserted into the male plastic shell 11, and then hexagonally crimped with wire crimping pliers to complete the electrical connection between the male plastic shell 11 and the male metal body 12. Finally, the crimped male metal body 12 and the male plastic shell 11 are tightened together. When rotating, care should be taken to adjust the angle appropriately so that the male metal body 12 can be smoothly inserted into the corresponding angle of the male plastic shell 11, and then pushed inward forcefully until the plastic umbrella-shaped clip of the male metal body 12 is in place and cannot be pulled out, thus completing the connection.
[0016] Furthermore, such as Figure 3 as well as Figure 5 As shown, the female connector 2 includes a female plastic shell 21 and a female metal body 22. One end of the female metal body 22 is electrically connected to the female plastic shell 21. When the male connector 1 is connected to the female connector 2, the male plastic shell 11 and the female plastic shell 21 are inserted into each other. The female connector 2 also includes a female waterproof gland body 23 and a female locking nut 24. The female waterproof gland body 23 is fitted on the surface of the female metal body 22, and the female plastic shell 21 and the female waterproof gland body 23 are threadedly connected to each other. The female locking nut 24 is fitted on the female metal body 22, and the female locking nut 24 is threadedly connected to the female waterproof gland body 23.
[0017] During implementation, the assembled male connector 1 and female connector 2 are inserted into each other, and pressure is applied in the insertion direction to compress the internal spring. Then, the connector is rotated 45 degrees clockwise in the axial direction until the bolt is engaged in the locking groove.
[0018] This utility model features an integrated structure composed of a plastic shell, a metal body, a locking nut, and a waterproof gland. These components work together to ensure reliable connection and protection. The shell is made of PA material, and the metal body is made of CuZn (Ag) material, balancing insulation, conductivity, and corrosion resistance. The installation process includes standardized steps such as stripping the outer sheath, tightening the locking nut, riveting, and installing terminals and connectors. Inspection holes, riveting techniques, and snap ring connections ensure proper installation and a secure connection (tensile force ≥2000N). In terms of performance parameters, this utility model has an IP67 protection rating, a rated current of 630A, a rated voltage of AC1000V / DC1500V, a contact resistance ≤25μΩ, a mechanical life >10000 cycles, and is compatible with various cable cross-sections (50-240 square millimeters).
[0019] Furthermore, such as Figure 1 , Figure 2 as well as Figure 3 As shown, an indicator structure 3 is also provided between the male connector 1 and the female connector 2. The indicator structure 3 is used to indicate when the male connector 1 and the female connector 2 are connected in place. The indicator structure 3 includes a mating indicator groove 31 and an observation hole 32. The surfaces of the male connector plastic shell 11 and the female connector plastic shell 21 are both provided with mating indicator grooves 31 and observation holes 32. The mating indicator groove 31 is used to indicate the position after the male connector 1 and the indicator structure 3 are plugged in, while the observation hole 32 is used to confirm whether the wire core of the male connector metal body 12 and the female connector plastic shell 21 is inserted into the male connector plastic shell 11 and the female connector plastic shell 21.
[0020] During implementation, the mating indicator 31 of the male plastic shell 11 and the male metal body 12 is aligned to indicate that the mating is in place. The observation hole 32 is used to confirm whether the wire core of the male metal body 12 and the female plastic shell 21 is properly inserted into the male plastic shell 11 and the female plastic shell 21.
[0021] This invention features an observation hole to confirm proper insertion of the wire core; a hexagonal riveting structure and specific crimping positions (approximately 8mm from the observation hole towards the wire, with two evenly pressed points) ensure a tensile force ≥2000N between the wire core and the terminal. A secure connection between the wire and connector is achieved through the cooperation of the locking nut, wire clamp nut, wire, and terminal. The fit between the housing and socket body, along with the overall design, ensures the connector achieves an IP67 protection rating in the connected state, providing waterproof and dustproof functionality. Performance specifications include: low contact resistance (≤25μΩ) under high current (630A) and high voltage (AC1000V / DC1500V), long mechanical life (>10000 cycles), and compatibility with multiple cable cross-sections.
[0022] This invention boasts superior protective performance: an IP67 protection rating, enabling reliable operation in harsh environments such as humid and dusty conditions, suitable for outdoor and complex industrial scenarios; excellent conductivity: contact resistance ≤25μΩ, resulting in low heat generation during high current transmission, high power transmission efficiency, and good safety; long mechanical life: mechanical life >10,000 cycles, meeting the needs of frequent plugging and unplugging or long-term use; strong adaptability: compatible with various cable cross-sections, offering a wide range of applications and reducing the difficulty of selection in different scenarios; convenient and reliable installation: through observation holes, riveting process, and spring clip connection structure, installation is ensured to be in place, with a connection tensile force ≥2000N, ensuring a stable connection.
[0023] Working principle: In use, first strip the outer sheath of the wires in the male metal body 12 and the female metal body 22 to expose the wire core; then, put the male waterproof gland body 13 and the male locking nut 14 onto the male waterproof gland body 12 and the female metal body 22 respectively, and then tighten the male locking nut 14 and the female locking nut 24 onto the male waterproof gland body 13 and the female waterproof gland body 23 respectively.
[0024] Then, the stripped wire cores of the male metal body 12 and the female metal body 22 are inserted into the male plastic shell 11 and the female plastic shell 21 respectively. At this time, the insertion is confirmed to be in place through the observation hole 32 of each. Then, hexagonal crimping is performed with wire crimping pliers to complete the electrical connection between the male plastic shell 11 and the female plastic shell 21 and between the male metal body 12 and the female metal body 22.
[0025] Next, tighten the male metal connector body 12 and female metal connector body 22, which have been crimped with the cable, onto the male plastic shell 11 and female plastic shell 21, respectively. When rotating, pay attention to adjusting the appropriate angle so that the male metal connector body 12 and female metal connector body 22 can be smoothly inserted into the corresponding angles of the male plastic shell 11 and female plastic shell 21. Push them inward forcefully until the plastic umbrella-shaped buckles of the male metal connector body 12 and female metal connector body 22 are in place and cannot be pulled out, thus completing the connection.
[0026] Finally, insert the assembled male connector 1 and female connector 2 into each other and continue to apply pressure in the insertion direction to compress the internal spring. Then rotate 45 degrees clockwise in the axial direction until the latch is engaged in the locking slot. At this time, the insertion indicator slots 31 of the male connector plastic shell 11 and the male connector metal body 12 are aligned. After insertion, please pull the plug outward forcefully to ensure that the locking mechanism is in place.
[0027] If it needs to be pulled out, apply pressure axially to push the latch out of the slot, and then rotate 45 degrees counterclockwise axially to pull out the plug.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A quick-connect cable connector, comprising a male connector (1) and a female connector (2) for mating with the male connector (1), characterized in that: The male connector (1) includes a male plastic shell (11) and a male metal body (12), one end of which is electrically connected to the male plastic shell (11); the female connector (2) includes a female plastic shell (21) and a female metal body (22), one end of which is electrically connected to the female plastic shell (21), and when the male connector (1) and the female connector (2) are connected, the male plastic shell (11) and the female plastic shell (21) are mutually inserted; an indicator structure (3) is also provided between the male connector (1) and the female connector (2), which is used to indicate when the male connector (1) and the female connector (2) are connected in place.
2. The cable quick-connect connector according to claim 1, characterized in that: The male connector (1) also includes a male waterproof gland body (13) and a male locking nut (14). The male waterproof gland body (13) is fitted on the surface of the male metal body (12), and the male plastic shell (11) and the male waterproof gland body (13) are threaded together.
3. A quick-connect cable connector according to claim 2, characterized in that: The male metal body (12) is fitted with a male locking nut (14), and the male locking nut (14) is threadedly connected to the male waterproof gland body (13).
4. A quick-connect cable connector according to claim 1, characterized in that: The female connector (2) also includes a female waterproof gland body (23) and a female locking nut (24). The female waterproof gland body (23) is fitted on the surface of the female metal body (22), and the female plastic shell (21) and the female waterproof gland body (23) are threaded together.
5. A cable quick-connect connector according to claim 4, characterized in that: The female head metal body (22) is fitted with a female head locking nut (24), and the female head locking nut (24) is threadedly connected to the female head waterproof gland body (23).
6. A cable quick-connect connector according to claim 1, characterized in that: The indicator structure (3) includes a mating indicator groove (31) and an observation hole (32). The surfaces of the male plastic shell (11) and the female plastic shell (21) are provided with mating indicator grooves (31) and observation holes (32). The mating indicator groove (31) is used to indicate the position after the male connector (1) and the indicator structure (3) are mated. The observation hole (32) is used to confirm whether the wire core of the male metal body (12) and the female plastic shell (21) is inserted into the male plastic shell (11) and the female plastic shell (21).