CN109546511A

CN109546511A - A kind of connection method of cable conductor

Info

Publication number: CN109546511A
Application number: CN201811383380.6A
Authority: CN
Inventors: 王志隆; 郑茂青
Original assignee: ZHEJIANG XINHUA CABLE CO Ltd
Current assignee: ZHEJIANG XINHUA CABLE CO Ltd
Priority date: 2018-11-20
Filing date: 2018-11-20
Publication date: 2019-03-29

Abstract

The invention discloses a kind of connection methods of cable conductor, it is used for the conductor connection for two cables, it is characterized by comprising following steps S1: the interconnection end of two cables being respectively prepared and is adapted male and negative head, every layer of conductor is stripped insulator according to setting length backward and carried out corresponding cutting by a piece cable by end respectively along its axial direction forms it into the ladder-like male outstanding, every layer of conductor is stripped insulator according to setting length backward by end respectively along its axial direction and carries out accordingly cutting the negative head for forming it into ladder-like indent by another cable；S2: yin head made from step S1 is successively outwardly opened, to then the exposure of innermost layer conductor successively be connect by root bead since innermost layer conductor；S3: each connector equating welded in step S2 is whole, it is brazed for the ag material successively by root using resistivity lower than itself, so that the conductivity in weld is not less than conductor itself.

Description

A kind of connection method of cable conductor

Technical field

The invention belongs to cable extension technical fields, concretely relate to a kind of connection method of cable conductor.

Background technique

It, only will be each if always there is dry joint among a power cable line since power cable factory length is limited Power cable, which connects, to be worked normally, and this attachment for being used to connect power cable is known as electric contracting formula medial head, lead The mode of body connection is to insert conductors into intermediate connection tube to be crimped；Cable conductor is using its presence of such connection method Following problems: 1, the size of intermediate connection tube is greater than the diameter of conductor, and it is excessive that this allows for joint dimension；2, due to using centre Connecting tube is crimped, conductive for contact between intermediate connection tube and conducting wire, and oxide layer of conductive surface etc. will make conduction Rate is lower than former cable conductor, and resistance herein will be larger, and the junction, which easily generates heat, when high current work leads to line Path loss is bad；3, its connection type is crimping, then the size of crimp force influences just very greatly the quality of connection, this is also led to Quality of connection and stability are uncontrollable；4, due to being connected by the multiple conducting wires in conductor while by intermediate connection tube, this is just So that cable hardness is high at cable connector, it is difficult to be bent, bring certain difficulty to the laying of route, and receive during the installation process It is easily broken to being frequently bended.

Summary of the invention

The object of the present invention is to provide a kind of connection method of cable conductor, it is intended to provide a kind of excellent cable conductor Connection structure and method solves the problems, such as that the cable conductor connection method of the prior art exists.

In order to solve the above technical problems, the object of the present invention is achieved like this:

A kind of connection method of cable conductor is used for the conductor connection for two cables, it is characterised in that: including with Lower step

S1: the interconnection end of two cables is respectively prepared and is adapted male and negative head, a cable will be every along its axial direction Layer conductor is stripped insulator according to setting length backward and carried out corresponding cutting by end respectively forms it into ladder-like protrusion The male, another cable along its axial direction by every layer of conductor respectively by end backward according to setting length strip insulator and Carry out the negative head that corresponding cutting forms it into ladder-like indent；

S2: yin head made from step S1 is successively outwardly opened, thus by the exposure of innermost layer conductor, then from most interior Layer conductor starts successively to connect by root bead；

S3: each connector equating welded in step S2 is whole.

Preferred embodiment on the basis of above scheme and as above scheme: male described in step S1 or negative head it is every The distance of two adjacent layer end conductors is 20-25mm.

Preferred embodiment on the basis of above scheme and as above scheme: the welding of the step S2 is carried out using silver Soldering.

Preferred embodiment on the basis of above scheme and as above scheme: every conductor welds in the step S2 Bond diameter should be not more than the diameter of conductor.

Preferred embodiment on the basis of above scheme and as above scheme: the method that the step S2 is successively opened is By the disposable outward bending of every layer of conductor so that the conductor of innermost layer sufficiently exposes.

Preferred embodiment on the basis of above scheme and as above scheme: the angle of outward bending is 90 °, is needed primary Property bending in place, must not bend repeatedly.

The present invention is prominent and beneficial compared with prior art to have the technical effect that 1, it is successively is lower than by root using resistivity The ag material of itself is brazed, so that the conductivity in weld is not less than conductor itself；2, what every conductor welded connects Head diameter should not exceed the diameter of conductor itself no more than this diameter for allowing for the conductor after welding of the diameter of conductor, so that Joint be closely sized to or equal to cable outer diameter；3, every conductor in cable conductor is brazed using ag material, Its quality is stablized, and reliability and stability are higher, good with conductor consistency itself；4, using ag material to every in cable conductor Root conductor is brazed, and is attached compares to whole conducting wire compared with the existing technology, flexible more preferable, can be as former cable one Sample is bent.

Detailed description of the invention

Fig. 1 is overall structure diagram of the invention；

Fig. 2 is male structural schematic diagram；

Fig. 3 is negative header structure schematic diagram；

Fig. 4 is cable inner lead distributed architecture schematic diagram.

Specific embodiment

To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the attached drawing in embodiment, to reality The technical solution applied in example is clearly and completely described, it is clear that described embodiment is only that the application a part is implemented Example, rather than whole embodiments.Based on the embodiment provided, those of ordinary skill in the art are not before making creative work Every other embodiment obtained is put, shall fall in the protection scope of this application.

See Fig. 1-3, a kind of connection method of cable conductor is used for the conductor connection for two cables, and feature exists In: include the following steps

S1: the interconnection end of the first cable 10 and the second cable 20 being respectively prepared and is adapted male and negative head, by the The first layer conductor 11, the second layer conductor 12, third layer conductor 13, the 4th layer conductor 14 of one cable 10 divide conducting wire along its axial direction Insulator 15 is not stripped according to setting length backward by end and carry out corresponding cutting form it into it is ladder-like outstanding described Male, the second cable 20 axially will along its first layer conductor 21, the second layer conductor 22, third layer conductor 23, the 4th layer conductor 24 Every layer conductor is stripped insulator according to setting length backward and is carried out corresponding cutting and formed it into ladder-like by end respectively The recessed negative head；

S2: by the first layer conductor 21 of yin head made from step S1, the second layer conductor 22, third layer conductor 23, the 4th layer Conducting wire 24 successively outwardly opens, thus by the exposure of the first layer conductor 21 of innermost layer, then from the of 20 innermost layer of the second cable The first layer conductor of innermost layer 111 of one layer conductor 21 and the first cable 10 starts successively to connect by root bead, if including in every layer of conducting wire Dry root conductor, when welding, weld every conductor in every layer conductor by root, as the conductor distribution of the conducting wire in Fig. 4 is shown Meaning；

It should be noted that the method successively opened is by the first layer conductor 21, the second layer conductor 22, third layer conductor 23, the disposable outward bending of conductor of the 4th layer conductor 24 is so that the conductor of innermost layer sufficiently exposes；It is preferred in the present embodiment, The angle of outward bending is 90 °, need to disposably bend in place, must not bend repeatedly, it is therefore intended that be disposably folded into conductor Position, avoiding repeatedly bending causes conductor bends to be not easy to restore to the original state, and brings difficulty for the insulation processing in later period；In addition by multiple The intensity of conducting wire after bending can be also destroyed.

Further, the conductor welding of the step S2 in the present embodiment is brazed using ag material, and general cable is made Be copper wire with the material of conductor, using ag material carry out soldering can good fusion guarantee welding quality, other ag material Conductivity is better than copper wire, then the resistance of conductor weld would not be made greater than the resistance of conductor itself, so that entire conducting wire connects There is the conductivity not less than conductor itself in joint after connecing, so as to avoid hair is easy to produce in joint in the prior art The problem of thermal conductivity cause connector is burnt and line fault.

In addition, the conductor root in a conducting wire should be prevented simultaneously in welding and generate adhesion between root.

Meanwhile the bond diameter of every conductor welding should be not more than the diameter of conductor, guarantee to lead after the completion of welding in this way The outer diameter of line is not more than the outer diameter of script conducting wire, to solve the problems, such as that joint size is big.

S3: each connector equating welded in step S2 is whole, and equating is whole the problem of being to eliminate point discharge.

Specifically, in the present embodiment, most by the first layer conductor 21 of 20 innermost layer of the second cable and the first cable 10 first More conductors in the first layer conductor of internal layer 111 are successively welded by root, and every welding one is once modified, finally successively Outside layer conductor is welded and is modified one by one.

It is preferred in the present embodiment, the distance of the every two adjacent layer end conductor of male described in step S1 or negative head L1, L2 20-25mm, innermost layer conducting wire and outermost layer wire termination distance L, L ' it is preferably 80-100mm.

Furthermore, it is desirable to the length of distance L1, L2 of explanation, male and the corresponding every two adjacent layer end conductor of negative head Degree should be accurate, and the margin of tolerance is that the upper deviation is 0mm, and lower deviation is -1.0mm, just can guarantee so after mounting, every layer every Root conducting wire stretches naturally, and there is no press generation internal stress mutually because length is too long.

Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore: it is all according to The equivalence changes that structure of the invention, shape, principle are done, should all be covered by within protection scope of the present invention.

Claims

1. a kind of connection method of cable conductor is used for the conductor connection for two cables, it is characterised in that: including following Step

S1: the interconnection end of two cables being respectively prepared and is adapted male and negative head, and a cable leads every layer along its axial direction Line is stripped insulator according to setting length backward and carried out corresponding cutting by end respectively forms it into ladder-like institute outstanding Male is stated, every layer conductor is stripped insulator and progress according to setting length backward by end respectively along its axial direction by another cable Corresponding cutting forms it into the negative head of ladder-like indent；

S2: yin head made from step S1 is successively outwardly opened, to then the exposure of innermost layer conducting wire be led from innermost layer Line starts successively to connect by root bead；

S3: each connector equating welded in step S2 is whole.

2. a kind of connection method of cable conductor according to claim 1, it is characterised in that: male described in step S1 or The distance of the every two adjacent layer end conductor of negative head is 20-25mm.

3. a kind of connection method of cable conductor according to claim 1, it is characterised in that: the male or negative head it is every Two adjacent layer end conductors apart from its margin of tolerance be upper deviation 0mm, lower deviation -1.0mm.

4. a kind of connection method of cable conductor according to claim 1, it is characterised in that: the welding of the step S2 is adopted It is brazed with silver.

5. a kind of connection method of cable conductor according to claim 1, it is characterised in that: led for every in the step S2 The bond diameter of body welding should be not more than the diameter of conductor.

6. a kind of connection method of cable conductor according to claim 1, it is characterised in that: the step S2 is successively opened Method be by the disposable outward bending of every layer of conductor so that the conductor of innermost layer sufficiently expose.

7. a kind of connection method of cable conductor according to claim 6, it is characterised in that: the angle of outward bending is 90 °, it need to disposably bend in place, must not bend repeatedly.