Waterproof copper-aluminum adapter connector

Abstract

The utility model relates to the field of adapter connectors, and discloses a waterproof copper-aluminum adapter connector, which comprises a copper-aluminum adapter terminal formed by tightly connecting a copper pipe and an aluminum pipe through friction welding, a copper end and an aluminum end are respectively in threaded fit with a copper end threaded connection part and an aluminum end threaded connection part, and the copper end and the aluminum end are in threaded fit with the copper end threaded connection part and the aluminum end threaded connection part in the screwing process. The driving contraction part interacts with the elastic clamping jaws of the copper cable waterproof ring and the aluminum cable tightening ring, so that the elastic clamping jaws contract inwards, the tightness of waterproof sealing is ensured, a reliable waterproof structure is formed, and electrical faults caused by water intrusion are prevented. And the copper end threaded connection part and the aluminum end threaded connection part are tightly attached to the waterproof sealing surfaces of the copper cable connection sleeve and the aluminum cable connection sleeve respectively to form double waterproof sealing surfaces, so that the waterproof performance is further improved, and the long-term stability and reliability of the connector in an extreme environment are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of adapter connector, especially relates to a waterproof copper-aluminum adapter connector. BACKGROUND

[0002] The connector commonly used when copper cable and aluminum cable are connected is called "transition joint" or "adapter". Because the electrode potential of copper and aluminum is different, direct connection is prone to electrochemical corrosion, so a connector is needed.

[0003] According to Chinese authorized patent announcement number: CN217114833U, a copper-aluminum adapter connector is disclosed, which comprises a female terminal made of copper or copper alloy, and an integrally formed and side-closed connecting pipe made of copper or copper alloy. An aluminum or aluminum alloy connecting column is arranged in the connecting pipe. The inner wall of the connecting pipe and the outer wall of the connecting column are metallurgically combined. The connecting column is provided with a wire pressing groove. The female terminal is sleeved on the connecting pipe. The copper-aluminum adapter connector provided by the utility model has good combination effect, stronger combination force, strong anti-creep ability, and reliable connection. However, the adapter connector still has some shortcomings. The copper-aluminum adapter connector often lacks effective waterproof design, or the waterproof structure is relatively simple. It relies on only a single sealing ring or sealing glue and other materials for waterproofing. When used in a humid environment or underwater, water can easily seep in through the gaps between the connector and the cable, the threaded connection parts inside the connector, and other parts, causing corrosion, short circuit, and other faults at the copper-aluminum contact points inside the connector, affecting the normal operation and service life of the connector, and even possibly causing safety accidents. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a waterproof copper-aluminum adapter connector, which solves the problem of poor waterproof performance of traditional copper-aluminum adapter connectors.

[0005] To achieve the above purpose, the utility model is implemented by the following technical scheme: a waterproof copper-aluminum adapter connector, comprising:

[0006] A copper-aluminum adapter terminal is formed by tightly connecting a copper pipe and an aluminum pipe through friction welding and is integrally molded.

[0007] A copper end threaded connection part and an aluminum end threaded connection part are respectively arranged at both ends of the copper-aluminum adapter terminal and are used for connecting with copper cables and aluminum cables.

[0008] A copper end retaining force groove and an aluminum end retaining force groove are respectively arranged on the surfaces of the copper end and the aluminum end and are filled with plastic during the molding process to provide retaining force to offset the pulling force and rotational force of the cable.

[0009] Preferably, the copper cable connecting sleeve and the aluminum cable connecting sleeve are further provided, which are sleeved on the copper end threaded connecting part and the aluminum end threaded connecting part respectively, and are used for tightly matching with the copper cable and the aluminum cable.

[0010] Preferably, the copper cable tightening ring and the aluminum cable tightening ring are further provided, which are sleeved on the copper cable and the aluminum cable respectively, and are used for tightly matching with the outer skin of the copper cable and the aluminum cable to form a primary waterproof sealing surface.

[0011] Preferably, the copper cable tightening ring and the aluminum cable tightening ring are further provided, which are sleeved on the copper cable and the aluminum cable respectively, and are used for tightly matching with the outer skin of the copper cable and the aluminum cable to form a primary waterproof sealing surface.

[0012] Preferably, the copper cable tightening ring and the aluminum cable tightening ring are further provided, which are sleeved on the copper cable and the aluminum cable respectively, and are used for tightly matching with the outer skin of the copper cable and the aluminum cable to form a primary waterproof sealing surface.

[0013] Preferably, the copper cable tightening ring and the aluminum cable tightening ring are further provided, which are sleeved on the copper cable and the aluminum cable respectively, and are used for tightly matching with the outer skin of the copper cable and the aluminum cable to form a primary waterproof sealing surface.

[0014] Preferably, the copper cable tightening ring and the aluminum cable tightening ring are further provided, which are sleeved on the copper cable and the aluminum cable respectively, and are used for tightly matching with the outer skin of the copper cable and the aluminum cable to form a primary waterproof sealing surface.

[0015] Preferably, the copper cable tightening ring and the aluminum cable tightening ring are further provided, which are sleeved on the copper cable and the aluminum cable respectively, and are used for tightly matching with the outer skin of the copper cable and the aluminum cable to form a primary waterproof sealing surface.

[0016] Preferably, the copper cable tightening ring and the aluminum cable tightening ring are further provided, which are sleeved on the copper cable and the aluminum cable respectively, and are used for tightly matching with the outer skin of the copper cable and the aluminum cable to form a primary waterproof sealing surface.

[0017] Preferably, the connector fixing structure is arranged at the middle part of the copper-aluminum adapter terminal, and is used for fixing the connector on a wall surface or other mounting position.

[0018] Beneficial effects

[0019] The utility model provides a waterproof copper-aluminum adapter connector, which has the following beneficial effects compared with the prior art:

[0020] In this invention, copper cable tightening rings and aluminum cable tightening rings are respectively fitted onto the copper cable and aluminum cable, located inside the copper cable connecting sleeve and aluminum cable connecting sleeve. These waterproof sleeves fit tightly against the cable sheath, forming a preliminary waterproof sealing surface, effectively preventing moisture from entering the connector and providing basic waterproof protection. The copper cable waterproof rings and aluminum cable tightening rings are respectively located inside the copper cable connecting sleeve and aluminum cable connecting sleeve, and have elastic claws. When the copper and aluminum ends are tightened, the elastic claws retract inward, squeezing the copper and aluminum cable tightening rings tightly against the cable sheath, further enhancing the waterproof sealing performance and ensuring the reliability and safety of the connector in humid environments. The copper and aluminum ends respectively engage with the threaded connection parts of the copper and aluminum ends. During tightening, the driving contraction part interacts with the elastic claws of the copper cable waterproof ring and the aluminum cable tightening ring, causing the elastic claws to retract inward, ensuring the tightness of the waterproof seal and forming a reliable waterproof structure to prevent electrical faults caused by moisture intrusion. After tightening the copper and aluminum ends, the threaded connection parts of the copper and aluminum ends respectively tightly fit against the waterproof sealing surfaces of the copper and aluminum cable connecting sleeves, forming a double waterproof sealing surface, further improving the waterproof performance and ensuring the long-term stability and reliability of the connector in extreme environments. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the front side of a waterproof copper-aluminum adapter connector proposed in this utility model.

[0022] Figure 2 This is a three-dimensional structural diagram of the rear side of a waterproof copper-aluminum adapter connector proposed in this utility model.

[0023] Figure 3 This is a cross-sectional structural diagram of a waterproof copper-aluminum adapter connector proposed in this utility model.

[0024] Figure 4 This is an exploded structural diagram of a waterproof copper-aluminum adapter connector proposed in this utility model.

[0025] Figure 5 This is a cross-sectional view of a waterproof copper-aluminum adapter connector proposed in this utility model.

[0026] Legend:

[0027] 1. Copper-aluminum adapter terminal; 2. Copper cable; 3. Aluminum cable; 4. Copper end threaded connection; 5. Aluminum end threaded connection; 6. Aluminum end retaining groove; 7. Copper end retaining groove; 8. Copper cable connecting sleeve; 9. Aluminum cable connecting sleeve; 10. Copper cable tightening ring; 11. Aluminum cable tightening ring; 12. Copper cable waterproof ring; 13. Aluminum cable waterproof ring; 14. Elastic claw; 15. Copper end; 16. Aluminum end; 17. Drive retraction part; 18. Connector fixing part; 19. Waterproof component. 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 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.

[0029] Please see Figures 1-5 This utility model provides two technical solutions, specifically including the following embodiments:

[0030] Example 1:

[0031] A waterproof copper-aluminum adapter connector, comprising:

[0032] The copper-aluminum adapter terminal 1 is formed by tightly connecting copper and aluminum tubes through friction welding and then injection molding into a single structure. Copper end threaded connection part 4 and aluminum end threaded connection part 5 are respectively located at both ends of the copper-aluminum adapter terminal 1 for connecting to copper cable 2 and aluminum cable 3. Copper end retaining force groove 7 and aluminum end retaining force groove 6 are respectively located on the surfaces of copper end 15 and aluminum end 16, and are filled with plastic during injection molding to provide retaining force to counteract the tensile and rotational forces of the cables. It also includes a copper cable connecting sleeve 8 and an aluminum cable connecting sleeve 9, respectively fitted onto the copper end threaded connection part 4 and the aluminum end threaded connection part 5 for tight fit with the copper cable 2 and the aluminum cable 3. Furthermore, it includes a copper cable tightening ring 10 and an aluminum cable tightening ring 11, respectively fitted onto the copper cable 2 and the aluminum cable 3 for tight fit with the outer sheath of the copper cable 2 and the aluminum cable 3, forming a preliminary waterproof seal. Finally, it includes a copper cable waterproof ring 12 and an aluminum cable waterproof ring 13, respectively located inside the copper cable connecting sleeve 8 and the aluminum cable connecting sleeve 9. Both the copper cable tightening ring 10 and the aluminum cable tightening ring 11 have elastic claws 14 at their tails. These claws retract inward when the copper cable connecting sleeve 8 and the aluminum cable connecting sleeve 9 are tightened, squeezing the copper cable tightening ring 10 and the aluminum cable tightening ring 11 tightly against the cable sheath, further enhancing the waterproof sealing performance. During the tightening process, the waterproof components 19 on the inner side of the copper cable tightening ring 10 and the aluminum cable tightening ring 11 are tightly attached to the copper-aluminum adapter terminal 1, forming a tight seal. The reliable waterproof structure features an interaction between the elastic claws 14 of the copper cable connecting sleeve 8 and the aluminum cable connecting sleeve 9 and the copper cable tightening ring 10 and the aluminum cable tightening ring 11, causing the elastic claws 14 to contract inward and ensuring a tight waterproof seal. After the copper cable connecting sleeve 8 and the aluminum cable connecting sleeve 9 are tightened, the copper end threaded connection part 4 and the aluminum end threaded connection part 5 fit tightly against the waterproof sealing surfaces of the copper cable connecting sleeve 8 and the aluminum cable connecting sleeve 9, respectively, forming a double waterproof sealing surface and further improving the waterproof performance.

[0033] During operation, the copper cable tightening ring 10 and the aluminum cable tightening ring 11 are respectively fitted onto the copper cable 2 and the aluminum cable 3, located inside the copper cable connecting sleeve 8 and the aluminum cable connecting sleeve 9. These waterproof sleeves fit tightly against the cable sheath, forming a preliminary waterproof seal, effectively preventing moisture from entering the connector and providing basic waterproof protection. The copper cable waterproof ring 12 and the aluminum cable waterproof ring 13 are respectively located inside the copper cable connecting sleeve 8 and the aluminum cable connecting sleeve 9. When the copper cable connecting sleeve 8 and the aluminum cable connecting sleeve 9 are tightened, the elastic claw 14 retracts inward, squeezing the copper cable tightening ring 10 and the aluminum cable tightening ring 11 tightly against the cable sheath, further enhancing the waterproof sealing performance and ensuring the connector can withstand humid environments. To ensure reliability and safety, the copper end 15 and aluminum end 16 are threadedly engaged with the copper end threaded connection part 4 and the aluminum end threaded connection part 5, respectively. During tightening, the drive contraction part 17 interacts with the elastic claws 14 of the copper cable waterproof ring 12 and the aluminum cable waterproof ring 13, causing the elastic claws 14 to contract inward, ensuring the tightness of the waterproof seal and forming a reliable waterproof structure to prevent electrical faults caused by water intrusion. After tightening the copper end 15 and the aluminum end 16, the copper end threaded connection part 4 and the aluminum end threaded connection part 5 are tightly fitted with the waterproof sealing surfaces of the copper cable connecting sleeve 8 and the aluminum cable connecting sleeve 9, respectively, forming a double waterproof sealing surface, further improving the waterproof performance and ensuring the long-term stability and reliability of the connector in extreme environments.

[0034] Example 2:

[0035] Based on Embodiment 1, after tightening the copper end 15 and the aluminum end 16, the copper end threaded connection part 4 and the aluminum end threaded connection part 5 leave gaps A0 and B0 respectively to meet the cable diameter requirements within a certain range. After tightening the connecting nut, the copper end threaded connection part 4 and the aluminum end threaded connection part 5 leave gaps A0 and B0 to meet the cable diameter requirements within a certain range. The requirements for cable diameter are relaxed, which makes it easy to adapt to cables of different diameters, improves the versatility and applicability of the connector, and reduces installation problems caused by cable diameter mismatch. It also includes a connector fixing part 18, which is set in the middle of the copper-aluminum adapter terminal 1 and is used to fix the connector to the wall or other installation positions.

[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A waterproof copper-aluminum adapter connector, characterized in that: include: The copper-aluminum adapter terminal (1) is formed by tightly connecting copper tubes and aluminum tubes through friction welding and then injection molding into an integral structure; The copper end threaded connection part (4) and the aluminum end threaded connection part (5) are respectively provided at both ends of the copper-aluminum adapter terminal (1) for connecting with the copper cable (2) and the aluminum cable (3); Copper end retaining force groove (7) and aluminum end retaining force groove (6) are respectively provided on the surface of copper end (15) and aluminum end (16) for being filled with plastic during injection molding to provide retaining force to counteract the tensile and rotational forces of the cable.

2. The waterproof copper-aluminum adapter connector according to claim 1, characterized in that: It also includes a copper cable connector sleeve (8) and an aluminum cable connector sleeve (9), which are respectively fitted onto the copper end threaded connection part (4) and the aluminum end threaded connection part (5) for tight fit with the copper cable (2) and the aluminum cable (3).

3. A waterproof copper-aluminum adapter connector according to claim 2, characterized in that: It also includes copper cable tightening ring (10) and aluminum cable tightening ring (11), which are respectively fitted onto copper cable (2) and aluminum cable (3) to fit tightly with the outer sheath of copper cable (2) and aluminum cable (3) to form a preliminary waterproof sealing surface.

4. A waterproof copper-aluminum adapter connector according to claim 3, characterized in that: It also includes a copper cable waterproof ring (12) and an aluminum cable waterproof ring (13), which are respectively installed inside the copper cable connecting sleeve (8) and the aluminum cable connecting sleeve (9).

5. A waterproof copper-aluminum adapter connector according to claim 4, characterized in that: During the tightening process of the copper cable tightening ring (10) and the aluminum cable tightening ring (11), the waterproof component (19) inside the copper cable tightening ring (10) and the aluminum cable tightening ring (11) is in close contact with the copper-aluminum adapter terminal (1) to form a reliable waterproof structure.

6. A waterproof copper-aluminum adapter connector according to claim 5, characterized in that: The copper cable connecting sleeve (8) and the aluminum cable connecting sleeve (9) interact with the elastic claws (14) of the copper cable tightening ring (10) and the aluminum cable tightening ring (11), causing the elastic claws (14) to contract inward, ensuring the tightness of the waterproof seal.

7. A waterproof copper-aluminum adapter connector according to claim 6, characterized in that: After the copper end threaded connection (4) and the aluminum end threaded connection (5) are tightened on the copper cable connecting sleeve (8) and the aluminum cable connecting sleeve (9), respectively, they are tightly fitted with the waterproof sealing surfaces of the copper cable connecting sleeve (8) and the aluminum cable connecting sleeve (9) to form a double waterproof sealing surface, which further improves the waterproof performance.

8. A waterproof copper-aluminum adapter connector according to claim 1, characterized in that: After the copper cable (2) and aluminum cable (3) of the copper-aluminum adapter terminal (1) are riveted, the tension and rotation force of the cable can be transmitted to the outer shell of the copper-aluminum adapter terminal (1), ensuring that the welded joint between copper and aluminum is not stressed, avoiding loosening and causing safety hazards, and ensuring the long-term stability and reliability of the connector.

9. A waterproof copper-aluminum adapter connector according to claim 8, characterized in that: After the copper end threaded connection (4) and the aluminum end threaded connection (5) are tightened, gaps A0 and B0 are left respectively to meet the requirements of cable diameter within a certain range.

10. A waterproof copper-aluminum adapter connector according to claim 1, characterized in that: It also includes a connector fixing structure (18), which is located in the middle of the copper-aluminum adapter terminal (1) and is used to fix the connector to the wall or other installation location.

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