Crimping-free copper-aluminum wiring terminal

Abstract

The utility model relates to a crimping-free copper-aluminum wiring terminal. The technical problem to be solved by the utility model is to provide a crimping-free copper-aluminum wiring terminal. According to the technical scheme, the wiring terminal comprises a wiring terminal body, a fastening screw, an anti-pulling clamping sleeve and a clamping spring, the wiring terminal body comprises a wiring terminal copper connecting part and a wiring terminal aluminum connecting part, and the middle of the wiring terminal copper connecting part and the middle of the wiring terminal aluminum connecting part are each provided with a non-crimping threaded hole. And the outer ends of the wiring terminal copper connecting part and the wiring terminal aluminum connecting part are respectively provided with a wiring terminal positioning groove. The copper-aluminum wiring terminal has the advantages that the anti-pulling clamping sleeve can clamp a wire, the fixing effect of the wire is effectively improved, and the wire is prevented from loosening due to pulling or bending, so that the copper-aluminum wiring terminal is kept stable, screws are prevented from loosening, and the safety is higher; the clamping continuity and stability are effectively guaranteed through the clamping spring locking sleeve.

Description

TECHNICAL FIELD

[0001] The utility model relates to copper aluminium wiring terminal technical field, concretely relates to a kind of exempt from crimping copper aluminium wiring terminal. BACKGROUND

[0002] Copper wire and aluminium wire directly connected can lead to poor conductivity and easily generate a large amount of heat, so copper aluminium wiring terminal is often used for intermediate transition, and the traditional exempt from crimping copper aluminium wiring terminal usually relies on screw to compress wire, but lacks effective auxiliary fixing measures, and when internal wire is pulled and bent, screw locking is prone to looseness, so that internal wire contact is poor, affecting the stability and safety of current transmission, and the present application is improved and optimized. SUMMARY

[0003] To solve the above problems, the technical problem to be solved by the utility model is to provide an exempt from crimping copper aluminium wiring terminal.

[0004] The utility model exempt from crimping copper aluminium wiring terminal adopts the technical scheme: its characterized in that including wiring terminal main part, fastening screw, anti-pulling clamping sleeve and snap spring, the wiring terminal main part includes wiring terminal copper connection part for copper wire access and wiring terminal aluminium connection part for aluminium wire access, the wiring terminal copper connection part end and the wiring terminal aluminium connection part end are welded together, and the inside is equipped with wire through hole, the wiring terminal copper connection part and the wiring terminal aluminium connection part middle part are equipped with exempt from crimping screw hole for the fastening screw compression and the wire through hole intercommunication, the wiring terminal copper connection part and the wiring terminal aluminium connection part outer end are equipped with wiring terminal positioning groove for the anti-pulling clamping sleeve positioning, the wiring terminal positioning groove is equipped with clamping mouth with the wire through hole intercommunication around arc interval, the anti-pulling clamping sleeve is equipped with clamping sleeve body, the clamping sleeve body is equipped with wire locking block that is passed in the clamping mouth, the clamping sleeve outer wall is equipped with snap spring clamping groove, and the snap spring is placed in the snap spring clamping groove.

[0005] It also includes snap spring locking sleeve, the wiring terminal copper connection part and the wiring terminal aluminium connection part outer wall are equipped with wiring terminal outer thread at the both ends of the wiring terminal positioning groove, and the snap spring locking sleeve inner wall is equipped with locking sleeve inner thread with the wiring terminal outer thread thread connection.

[0006] The wiring terminal copper connection part and the wiring terminal aluminium connection part middle part are equipped with two exempt from crimping screw holes, and two exempt from crimping screw holes are on the same horizontal plane.

[0007] The anti-pulling clamping sleeve adopts insulating rubber material.

[0008] The wire locking block is equipped with locking tooth for wire clamping at intervals, and the cross section of locking tooth is triangular structure.

[0009] The retaining ring locking sleeve is provided with a locking sleeve tightening part, which is a regular hexagonal structure.

[0010] The advantages of this novel pressure-free copper-aluminum terminal block are as follows: the anti-pull clamping sleeve can clamp the wire, effectively improving the fixing effect of the wire and preventing the wire from loosening due to pulling or bending, thereby keeping the copper-aluminum terminal block stable, preventing the screw from loosening, and making it safer; the snap ring locking sleeve effectively ensures the continuity and stability of the clamping. Attached Figure Description

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 This is an exploded view of the crimp-free copper-aluminum terminal block of this utility model;

[0013] Figure 2 This is a schematic diagram of the main body of the terminal block of this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the anti-pull clamping sleeve of this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the snap ring locking sleeve of this utility model. Detailed Implementation

[0016] like Figures 1-4 As shown, the present invention relates to a crimp-free copper-aluminum terminal block, comprising a terminal block body 1, a fastening screw 2, an anti-pull clamping sleeve 3, and a retaining spring 4. The terminal block body 1 includes a copper terminal block 7 for copper wire connection and an aluminum terminal block 8 for aluminum wire connection. The ends of the copper terminal block 7 and the aluminum terminal block 8 are welded together, and each has a wire through hole 9. Both the copper terminal block 7 and the aluminum terminal block 8 have a crimp-free threaded hole 10 in the middle for the fastening screw 2 to press and communicate with the wire through hole 9. The outer ends of both the copper terminal block 7 and the aluminum terminal block 8 are... The anti-pull clamping sleeve 3 is provided with a terminal positioning groove 11 for positioning. The terminal positioning groove 11 is provided with clamping openings 12 that communicate with the wire through hole 9 at intervals around the arc. The anti-pull clamping sleeve 3 is provided with a clamping sleeve body 13. The clamping sleeve body 13 is provided with a wire locking block 14 that passes through the clamping opening 12. The outer wall of the clamping sleeve body 13 is provided with a snap ring clamping groove 15. The snap ring 4 is placed in the snap ring clamping groove 15. The anti-pull clamping sleeve 3 can clamp the wire, effectively improving the fixing effect of the wire and preventing the wire from loosening due to pulling or bending. This keeps the copper and aluminum terminals stable, prevents the screw from loosening, and enhances safety.

[0017] It also includes a snap ring locking sleeve 5. The outer walls of the copper terminal 7 and the aluminum terminal 8 are provided with external threads 17 at both ends of the terminal positioning groove 11. The inner wall of the snap ring locking sleeve 5 is provided with an internal thread 18 that is threadedly connected to the external threads 17 of the terminal. The snap ring locking sleeve 5 plays a role in locking the position of the snap ring 4, so that the snap ring 4 can continuously clamp the anti-pull clamping sleeve 3, thereby ensuring that the anti-pull clamping sleeve 3 maintains the clamping force against the wire's tension or bending, effectively ensuring the continuity and stability of the clamping.

[0018] Both the copper connector 7 and the aluminum connector 8 of the terminal block are provided with two crimp-free threaded holes 10 in the middle. The two crimp-free threaded holes 10 are on the same horizontal plane, which makes the crimp-free effect of the terminal block better and the wire locking more stable and reliable.

[0019] The anti-pull clamping sleeve 3 is made of insulating rubber, which effectively isolates the risk of electric arc and short circuit between the conductors.

[0020] The wire locking block 14 is provided with locking teeth 22 at intervals for clamping the wire. The cross-section of the locking teeth 22 is triangular, which enhances the clamping force on the wire and makes the wire more secure.

[0021] The retaining ring locking sleeve 5 is provided with a locking sleeve tightening part 20, which is a regular hexagonal structure, making it easy to operate with tools and reducing installation and disassembly time.

[0022] 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 and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. A crimp-free copper-aluminum terminal block, characterized in that: The device includes a terminal block body (1), a fastening screw (2), an anti-pull clamping sleeve (3), and a retaining ring (4). The terminal block body (1) includes a copper terminal block (7) for copper wire connection and an aluminum terminal block (8) for aluminum wire connection. The ends of the copper terminal block (7) and the aluminum terminal block (8) are welded together, and each has a wire through hole (9). The middle of both the copper terminal block (7) and the aluminum terminal block (8) has a non-crimping threaded hole (10) for the fastening screw (2) to press and communicate with the wire through hole (9). Both the copper terminal (7) and the aluminum terminal (8) are provided with terminal positioning grooves (11) for positioning the anti-pull clamping sleeve (3). The terminal positioning groove (11) is provided with clamping openings (12) that communicate with the wire through hole (9) at intervals around the arc. The anti-pull clamping sleeve (3) is provided with a clamping sleeve body (13). The clamping sleeve body (13) is provided with a wire locking block (14) that passes through the clamping opening (12). The outer wall of the clamping sleeve body (13) is provided with a snap ring clamping groove (15). The snap ring (4) is placed in the snap ring clamping groove (15).

2. The crimp-free copper-aluminum terminal block according to claim 1, characterized in that: It also includes a snap ring locking sleeve (5), the outer walls of the copper terminal (7) and the aluminum terminal (8) are provided with terminal external threads (17) at both ends of the terminal positioning groove (11), and the inner wall of the snap ring locking sleeve (5) is provided with a locking sleeve internal thread (18) that is threadedly connected to the terminal external thread (17).

3. The crimp-free copper-aluminum terminal block according to claim 1, characterized in that: Both the copper terminal (7) and the aluminum terminal (8) are provided with two crimp-free threaded holes (10) in the middle, and the two crimp-free threaded holes (10) are on the same horizontal plane.

4. The crimp-free copper-aluminum terminal block according to claim 1, characterized in that: The anti-pull clamping sleeve (3) is made of insulating rubber.

5. The crimp-free copper-aluminum terminal block according to claim 1, characterized in that: The wire locking block (14) is provided with locking teeth (22) for clamping the wire at intervals, and the cross-section of the locking teeth (22) is a triangular structure.

6. The crimp-free copper-aluminum terminal block according to claim 2, characterized in that: The retaining ring locking sleeve (5) is provided with a locking sleeve tightening part (20), which is a regular hexagonal structure.

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