CN212648536U - Spiral copper-aluminum transition wiring terminal - Google Patents

Abstract

The utility model discloses a spiral copper aluminium transition binding post for connecting wire and switch, including terminal main part and activity external member, terminal main part and activity external member screw-thread fit, the tip of terminal main part is equipped with the conical surface, is equipped with the inclined plane that compresses tightly of cooperation conical surface in the activity external member, and the terminal main part is equipped with a plurality of breach elongated slots on the conical surface. The utility model has the advantages that the blind hole for matching and guiding is arranged in the terminal main body, the lead is inserted into the terminal main body, the movable external member and the terminal main body are screwed up by the screw thread, the elastic deformation of the conical surface is realized by the matching of the pressing inclined plane and the conical surface, thereby the lead is pressed, the reliable limiting of the lead is realized, and the construction can be carried out without other heavy tools, thereby the assembly efficiency is greatly improved; because compress tightly the inclined plane and can compress tightly the conical surface, consequently can cooperate the wire of different line footpaths, multiple model cable can share, shortens operating time, promotes production efficiency.

Description

Spiral copper-aluminum transition wiring terminal

Technical Field

The utility model belongs to the technical field of the zero firmware of power supply terminal, specifically a spiral copper aluminium transition binding post.

Background

The existing transition wiring terminal of the 0.4kV low-voltage power terminal still adopts wiring terminals with various specifications in the same application field, namely 1 cable is matched with 1 cable wiring terminal with 1 matched wire diameter. And the construction can be carried out by means of corresponding matched oil hydraulic tongs. Because the access wire generally adopts the aluminium wire, and all kinds of switch binding post with the wire butt joint are the copper product, do not have a special copper aluminium transition binding post yet, can multiple model cable sharing binding post, can not accomplish quick construction again with the help of other large-scale instruments.

In order to improve the fastening of the connection terminal, those skilled in the art have made many studies thereon.

For example, in chinese patent literature, a utility model patent entitled "a novel electrical connection terminal structure" issued with an authorization publication number CN 210723490U on 6/9/2020, this application discloses a novel electrical connection terminal structure, which includes a connection terminal main body, and is characterized in that: the outer fixed surface of binding post main part installs insulating casing, insulating casing's inside fixed mounting has the wiring board, the lower extreme fixed mounting of wiring board has damping spring, first recess and second recess have been seted up to the upper end surface of wiring board, first recess seted up in the both sides of second recess, the top of wiring board is provided with first connecting plate, upper end fixedly connected with spiral connecting rod under the first connecting plate, spiral connecting rod's upper end fixed mounting has the swivelling joint block, spiral channel has been seted up all around to spiral connecting rod, the lower extreme fixed mounting of first connecting plate has first connecting block. The defects of the prior art are as follows: need insulating casing cooperation to use, compress tightly spiral passage through insulating housing and provide fastening force, realize binding post's reliable connection, the structure is too big to can influence binding post's heat-sinking capability, the restriction is too much, and the assembly is complicated moreover, is unfavorable for the maintenance.

Disclosure of Invention

Based on the defects in the prior art, the invention provides the spiral copper-aluminum transition wiring terminal, which can share one wiring terminal for cables of various types, can complete quick construction without other large tools, meets the construction requirement of a 0.4kV low-voltage power terminal, shortens the operation time, lightens the burden of personnel and improves the production efficiency on the premise of ensuring safety.

In order to realize the purpose of the invention, the invention adopts the following technical scheme:

a spiral copper-aluminum transition wiring terminal is used for connecting a wire and a switch and comprises a terminal main body and a movable sleeve, wherein the terminal main body is in threaded fit with the movable sleeve, a conical surface is arranged at the end part of the terminal main body, a pressing inclined surface matched with the conical surface is arranged in the movable sleeve, and a plurality of notch long grooves are formed in the conical surface of the terminal main body.

The terminal main body is internally provided with a blind hole for matching and guiding, a lead is inserted into the terminal main body, the movable sleeve and the terminal main body are screwed up by threads, and elastic deformation of a conical surface is realized by matching a pressing inclined surface and the conical surface, so that the lead is pressed, the reliable limiting of the lead is realized, construction can be carried out without other heavy tools, and the assembly efficiency is greatly improved; because compress tightly the inclined plane and can compress tightly the conical surface, consequently can cooperate the wire of different line footpaths, multiple model cable can share, shortens operating time, promotes production efficiency.

Preferably, the terminal body is made of copper-aluminum composite material, the part of the terminal body connecting wire is made of aluminum material, and the part of the terminal body connecting switch is made of copper. The natural transition of the aluminum wire and the copper material is realized, the aluminum-copper composite material can be suitable for wires with wire diameters of 6-12mm, and the application range is wide.

Preferably, the conical surface has a smaller cone angle than the compression ramp. The end part of the conical surface can be automatically compressed after contacting the compression inclined plane, so that the reliability of the compression effect of the compression inclined angle is ensured; in addition to the method of making the taper angle of the conical surface smaller than the pressing slope, the pressing of the conical surface can be realized by providing a protrusion on the outer side of the conical surface, but this is preferable because it has a problem of high cost.

Preferably, the end of the conical surface remote from the end of the terminal body is provided with a reinforcing ring. The strength of the conical surface is improved through the reinforcing ring, stress damage to the end part of the terminal main body along the long groove of the notch is prevented, and the service life of the terminal is prolonged.

Preferably, the movable sleeve comprises a through section, a pressing inclined plane and a thread section which are arranged in sequence, and the conducting wire extends into the movable sleeve from the through section. The installation of the wire is convenient.

Preferably, the outer side of the activity set is hexagonal prism shaped. The external member that conveniently moves about rotates under the exogenic action, and the lateral surface of hexagonal prism can cooperate tools such as spanner, vice, makes things convenient for the installation of external member and terminal main part that moves about.

Preferably, the notch elongated groove has a groove width gradually decreasing inward from the end of the terminal body. When the conical surface is pressed, the end face of the conical surface is reduced, and the inward-contraction arrangement of the long groove of the notch can improve the bonding property when the conical surface is pressed, so that mutual interference is prevented.

Preferably, an elastic ring is arranged at the intersection position of the through section and the pressing inclined surface. Compress tightly inclined plane cooperation conical surface, conical surface tip is by compressive deformation, and conical surface tip can withstand the elastic ring, can improve the cooperation that compresses tightly inclined plane and conical surface through the elastic ring and realize the shutoff of link up section, improves the reliability, can also regard as the buffering, reduces the conical surface tip to compressing tightly the wearing and tearing of inclined plane, the life of extension conical surface.

In conclusion, the beneficial effects of the invention are as follows:

1. the wiring terminal can be shared by various types of cables, and is suitable for cables with different wire diameters;

2. the construction method has the advantages that the construction can be quickly completed without other large tools, the construction requirements of the 0.4kV low-voltage power terminal are met, the operation time is shortened, the burden of personnel is reduced and the production efficiency is improved on the premise of ensuring safety;

3. long service life and high reliability.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic structural diagram of another embodiment of the present invention.

Wherein: the conical surface 31 of the terminal body 3 of the switch 1 and the switch 2 is provided with a reinforcing ring 32, a notch, a long groove 33, a blind hole 34, a through section 41 of the movable sleeve 4, and an elastic ring 44 pressing the threaded section 43 of the inclined surface 42.

Detailed Description

The invention is further described with reference to the following detailed description and accompanying drawings.

In the case of the example 1, the following examples are given,

as shown in fig. 1 and 2, embodiment 1 is a spiral copper-aluminum transition connection terminal, which is used for connecting a wire 1 and a switch 2, and includes a terminal main body 3 and a movable sleeve 4, wherein the terminal main body 3 is made of copper-aluminum composite material, the part of the terminal main body 3 connected with the wire 1 is made of aluminum material, and the part of the terminal main body 3 connected with the switch 2 is made of copper material. The portion of the terminal body 3 to which the lead wire 1 is connected is internally provided with a blind hole 34 for accommodating the lead wire 1. The outer side of the activity suite 4 is hexagonal prism shaped. The movable sleeve 4 comprises a through section 41, a pressing inclined surface 42 and a threaded section 43 which are arranged in sequence, and the lead 1 extends into the movable sleeve 4 from the through section 41. The terminal body 3 is in threaded fit with the movable sleeve 4, the end part of the terminal body 3 is provided with a conical surface 31, and one end of the conical surface 31, which is far away from the end part of the terminal body 3, is provided with a reinforcing ring 32. The movable sleeve 4 is internally provided with a pressing inclined surface 42 matched with the conical surface 31, and the cone angle of the conical surface 31 is smaller than that of the pressing inclined surface 42. The terminal body 3 is provided with four notch long grooves 33 on the conical surface 31. Four notched elongated slots 33 are arranged in a circumferential array about the axis of the terminal body 3. The notch long groove 33 has a groove width gradually decreasing inward from the end of the terminal body 3.

In the case of the example 2, the following examples are given,

embodiment 2 shown in fig. 3 differs from embodiment 1 in that: an elastic ring 44 is arranged at the intersection position of the through section 41 and the pressing inclined surface 42. The movable sleeve member 4 is internally provided with a ring groove matched with the elastic ring 44, the outer side of the elastic ring 44 is bonded in the ring groove, and the inner ring of the elastic ring 44 extends out of the ring groove. The pressing inclined plane 42 is matched with the conical plane 31, the end part of the conical plane 31 is compressed and deformed, the end part of the conical plane 31 can be propped against the elastic ring 44, the matching of the pressing inclined plane 42 and the conical plane 31 can be improved through the elastic ring 44, the blocking of the through section 41 is realized, the reliability is improved, the buffer function can be realized, the abrasion of the end part of the conical plane 31 to the pressing inclined plane 42 is reduced, and the service life of the conical plane 31 is prolonged.

The terminal main body 3 is internally provided with a blind hole 34 for matching and guiding, an inner core of the lead 1 with an external package removed is inserted into the terminal main body 3, the movable sleeve 4 and the terminal main body 3 are screwed tightly by threads, and the elastic deformation of the conical surface 31 is realized by matching the pressing inclined surface 42 with the conical surface 31, so that the lead 1 is pressed, the reliable limit of the lead 1 is realized, the potential connection of the lead 1 and the switch 2 is completed, construction can be carried out without other heavy tools, and the assembly efficiency is greatly improved; because compress tightly inclined plane 42 and can compress tightly conical surface 31, consequently can cooperate the wire 1 of different line footpaths, multiple model cable can share, shortens the activity duration, promotes production efficiency.

It will be appreciated by those of ordinary skill in the art that the examples described herein are intended to assist the reader in understanding the manner of practicing the invention, and it is to be understood that the scope of the invention is not limited to such specific statements and examples. Those skilled in the art can make various other specific modifications and combinations based on the teachings of the present invention without departing from the spirit of the invention, and such modifications and combinations are still within the scope of the invention.

Claims (8)

1. A spiral copper-aluminum transition wiring terminal is used for connecting a wire and a switch and is characterized by comprising a terminal main body and a movable sleeve, wherein the terminal main body is in threaded fit with the movable sleeve, a conical surface is arranged at the end part of the terminal main body, a pressing inclined surface matched with the conical surface is arranged in the movable sleeve, and a plurality of notch long grooves are formed in the conical surface of the terminal main body.

2. The spiral copper-aluminum transition wire connecting terminal according to claim 1, wherein the terminal body is made of copper-aluminum composite material, the portion of the terminal body connecting wire is made of aluminum material, and the portion of the terminal body connecting switch is made of copper.

3. A spiral copper-aluminum transition terminal as claimed in claim 1, wherein the taper angle of the conical surface is smaller than the taper angle of the pressing slope.

4. A spiral copper-aluminum transition terminal according to claim 1 or 3, wherein the end of the conical surface away from the terminal body end is provided with a reinforcing ring.

5. The spiral copper-aluminum transition wiring terminal as claimed in claim 1, wherein the movable sleeve comprises a through section, a pressing inclined surface and a thread section which are arranged in sequence, and a wire extends into the movable sleeve from the through section.

6. A spiral copper-aluminum transition terminal according to claim 1 or 5, characterized in that the shape of the outer side surface of the movable sleeve is hexagonal prism.

7. A spiral copper-aluminum transition terminal according to claim 1 or 3, wherein the width of the notch elongated slot is gradually reduced from the end of the terminal body inward.

8. A spiral copper-aluminum transition wiring terminal as claimed in claim 5, wherein an elastic ring is provided at the intersection of the through section and the pressing slope.

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