A copper nose terminal

Abstract

The utility model discloses a copper nose wiring terminal, including line storehouse and alae nasi, be equipped with transition between line storehouse and alae nasi, the inner hole cavity inside of line storehouse is equipped with torsional spring terminal, the opening portion of line storehouse still is equipped with the installation cover for closing torsional spring terminal in inner hole cavity, the one end of torsional spring terminal is located in the inner hole cavity inside and abuts on the inner wall of transition, and the other end abuts and limits with installation cover, the copper nose wiring terminal of the utility model, adopt copper pipe punch whole type to make, main body includes line storehouse, alae nasi and transition, and detachable torsional spring terminal is arranged on line storehouse, sets up or removes use according to use demand, torsional spring terminal sets up and utilizes the internal structure installation of copper nose itself reasonably, and simple and easy to process, convenient production, and low in production cost, and high practicality.

Description

Technical Field

[0001] This utility model relates to the field of copper lug technology, specifically to a copper lug terminal block. Background Technology

[0002] Terminal blocks are accessories used to achieve electrical connections, and are classified as connectors in industry. With increasing industrial automation and more stringent and precise industrial control requirements, the use of terminal blocks is gradually rising. As the electronics industry develops, the applications of terminal blocks are expanding, and the types of terminal blocks are also increasing.

[0003] In the existing technology, there are many types of terminal blocks. Among them, copper lug terminals are a common type of connector, widely used in high-frequency fields such as automobiles. Conventional copper lugs are generally assembled by directly and completely fixing them to the cable. That is, after the cable is inserted into the cable compartment, the conventional copper lug needs to be flattened to deform and clamp the metal head of the cable. Flattening may cause the cable hole to not contact a part of the cable, resulting in a decrease in the conductivity area and affecting the use. In addition, when using terminals that fix the connection cable at some special interfaces, the only way to disassemble and repair them is to remove the bolts, which is inconvenient and therefore less practical. Utility Model Content

[0004] In view of the prior art, the purpose of this utility model is to provide a copper lug terminal block, which, through the combination of a simple threaded structure and an inner hole structure, allows for convenient installation and removal of torsion springs and can be used as a torsion spring terminal block or a traditional copper lug terminal block.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a copper lug terminal block, including a wire compartment and a nose wing, a transition portion is provided between the wire compartment and the nose wing, a torsion spring terminal is provided inside the inner cavity of the wire compartment, and the opening of the wire compartment is also provided with a mounting cover for sealing the torsion spring terminal inside the inner cavity. One end of the torsion spring terminal located inside the inner cavity abuts against the inner wall of the transition portion, and the other end abuts against and limits the mounting cover.

[0006] As a further feature of the above solution, the torsion spring terminal comprises two rings at both ends and a spring plate located in the middle of the two rings, and the rings and the spring plate are also provided with edge notches.

[0007] As a further feature of the above solution, the mounting cover is provided with a threaded portion and a groove, the groove being used for engaging the torsion spring terminal, and the threaded portion being used for engaging with the internal thread provided on the opening.

[0008] As a further feature of the above solution, the nose wing is also provided with bolt holes, and the bolt holes are machined with chamfers.

[0009] As a further feature of the above solution, the transition section is provided with a slit, and the transition section is formed by extruding and stretching the copper tube from both sides toward the center.

[0010] Beneficial effects: The copper lug terminal of this utility model is made by stamping and shaping copper tube. The main body includes a wire compartment, a nose wing and a transition part. A detachable torsion spring terminal is set on the wire compartment. It can be set or removed according to the usage requirements. The torsion spring terminal makes reasonable use of the internal structure of the copper lug itself for installation. It is easy to process, convenient to manufacture, has low production cost and high practicality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the copper lug terminal block housing structure of this utility model.

[0012] Figure 2 This is a schematic cross-sectional view of the copper lug terminal block in this embodiment.

[0013] Figure 3 This is a schematic diagram of the copper nose torsion spring terminal structure in this embodiment.

[0014] Figure 4 This is a schematic diagram of the copper nose terminal assembly structure in this embodiment.

[0015] Reference numerals: 1. Cable compartment; 11. Inner cavity; 12. Opening; 13. Internal thread; 2. Nose wing; 21. Bolt hole; 22. Chamfer; 3. Torsion spring terminal; 31. Ring; 32. Spring leaf; 33. Edge notch; 4. Transition section; 41. Cutout; 5. Mounting cover; 51. Thread groove; 52. Threaded section. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other.

[0017] like Figure 1-4 The copper lug terminal block shown includes a cable compartment 1 and a nose wing 2. A transition portion 4 is provided between the cable compartment 1 and the nose wing 2. A torsion spring terminal 3 is provided inside the inner cavity 11 of the cable compartment 1. The opening 12 of the cable compartment 1 is also provided with a mounting cover 5 for sealing the torsion spring terminal 3 inside the inner cavity 11. One end of the torsion spring terminal 3 located inside the inner cavity 11 abuts against the inner wall of the transition portion 4, and the other end abuts against and limits the mounting cover 5.

[0018] As described above, the copper lug terminal of this utility model mainly includes a wire compartment 1 and a nose wing 2, which are integrally structured, and a transition portion 4 located between them. The wire compartment 1 also has an inner cavity 11 for mounting cables and torsion spring terminals 3. It is worth noting that the copper lug in this embodiment is manufactured by stamping and flattening copper tubing, with copper tubing as the base material. The transition portion 4 is formed during the stamping process of the nose wing 2. At the transition portion 4, the inner cavity of the wire compartment 1 collapses inward to form an irregular oblique conical inner wall of the transition portion 4. Furthermore, in this embodiment, the wire compartment 1 has an internal thread 13 structure at the opening 12 for cable insertion. When the copper lug of this embodiment is applied to a torsion spring terminal in new energy applications, a torsion spring terminal 3 is also provided inside the wire compartment 1. The purpose of the internal thread 13 is to lock and seal the opening 12 with the threaded engagement of the mounting cover 5 to prevent the torsion spring terminal 3 from coming out of the wire compartment 1. When the torsion spring terminal 3 is embedded in the wire compartment 1, its straight... The diameter is basically equal to the diameter of the inner cavity 11. In the installed state, the two ends of the torsion spring terminal 3, which is spread and abuts against the inner wall of the inner cavity 11, abut against the transition part 4 and the corresponding groove 51 of the mounting cover 5, respectively. The two cooperate to hold the torsion spring terminal 3 in place, so that it will not slide freely in the inner cavity 11. When in use, the torsion spring terminal 3 is deformed and compressed outward by the insertion of the external electric rod. When the deformation is restored, it clamps the electric rod in the circumferential direction and increases the contact area (the cable and the inner cavity 11 of the cable compartment 1 are generally not completely attached, but partially attached, resulting in uneven conductivity). The torsion spring terminal 3 can alleviate the problem of uneven connection by multiple torsion springs evenly arranged in the circumferential direction, and can better achieve uniform conduction in the circumference. When using copper lug terminals in the traditional way, the internal thread 13 does not play a role. The user can remove the mounting cover 5 and pour out the torsion spring terminal 3 inside the part, and then directly insert the cable into the inner cavity 11 for connection, and use it in the traditional way.

[0019] As a further provision of the above scheme, the torsion spring terminal 3 is composed of two rings 31 at both ends and a spring plate 32 located in the middle of the two rings 31. The rings 31 and the spring plate 32 are also provided with edge notches 33.

[0020] As a further provision of the above scheme, the mounting cover 5 is provided with a threaded portion 52 and a retaining groove 51. The retaining groove 51 is used to engage with the torsion spring terminal 3, and the threaded portion 52 is used to cooperate with the internal thread 13 provided on the opening portion 12.

[0021] As a further feature of the above solution, the nose wing 2 is also provided with bolt holes 21. The bolt holes 21 are machined with chamfers 22. The chamfers 22 are mainly provided by punching the bolt holes 21 and then processing them to remove the edge of the hole. This avoids the influence of burrs on the edge of the hole and allows the bolts to fit better when they are fixed.

[0022] As a further feature of the above scheme, the transition section 4 is provided with a cut 41, and the transition section 4 is formed by extruding and stretching the copper tube from both sides toward the middle.

[0023] As described above, the transition section 4 in this embodiment is formed by first making a small incision on one side of a copper tube, and then simultaneously extruding and deforming both sides towards the center. Figure 2 The cross-sectional diagram shown shows that the nose wing 2 is not located in the center of the copper tube but on the far side relative to the cut 41, but it is also not at the bottom of the wire compartment 1. The purpose of this setting is that after the extrusion deformation is completed, the size of the transition part 4 will be smaller, and its inner wall will collapse inward. The ring 31 of the torsion spring terminal 3 will not have a tilt support problem at the circumferential end, making the installation and use more stable.

[0024] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A copper lug terminal block, comprising a wire compartment (1) and a nose wing (2), characterized in that: A transition section (4) is provided between the cable compartment (1) and the nose wing (2). A torsion spring terminal (3) is provided inside the inner cavity (11) of the cable compartment (1). The opening (12) of the cable compartment (1) is also provided with a mounting cover (5) for sealing the torsion spring terminal (3) inside the inner cavity (11). One end of the torsion spring terminal (3) located inside the inner cavity (11) abuts against the inner wall of the transition section (4), and the other end abuts against the mounting cover (5) for limitation.

2. The copper lug terminal block according to claim 1, characterized in that: The torsion spring terminal (3) consists of two end rings (31) and a spring piece (32) located in the middle of the two end rings (31). The rings (31) and the spring piece (32) are also provided with edge notches (33).

3. A copper lug terminal block according to claim 1, characterized in that: The mounting cover (5) is provided with a threaded part (52) and a groove (51). The groove (51) is used to engage with the torsion spring terminal (3), and the threaded part (52) is used to cooperate with the internal thread (13) provided on the opening (12).

4. A copper lug terminal block according to claim 1, characterized in that: The nose wing (2) is also provided with bolt holes (21), and the bolt holes (21) are provided with chamfers (22).

5. A copper lug terminal block according to claim 1, characterized in that: The transition section (4) is provided with a cut (41), and the transition section (4) is formed by extruding and stretching the copper tube from both sides toward the middle.

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