CN201156625Y

CN201156625Y - Pressure welding type high tension cable joint

Info

Publication number: CN201156625Y
Application number: CNU200820032610XU
Authority: CN
Inventors: 叶绿
Original assignee: CHANGZHOU MAIKE ELECTRONIC Co Ltd
Current assignee: CHANGZHOU MAIKE ELECTRONIC Co Ltd
Priority date: 2008-02-22
Filing date: 2008-02-22
Publication date: 2008-11-26
Anticipated expiration: 2018-02-22

Abstract

A pressing-connection type high tension cable joint consists of a contact pin (1), a metal tube (2), a rubber core (3), a cable wire (4) and a shell (5). The inside of the rubber core (3) is provided with a pin slot (3-1); the tail part of the contact pin (1) is arranged in the pin slot (3-1) of the rubber core (3); besides, the tail part of the metal tube (2) is provided with a pressing wire sheet (2-1); the shell (5) is sheathed on the metal tube (2) and the rubber core (3) and connects the groundwire (4-1) of the cable wire (4) on the pressing wire sheet (2-1) by pressing; the outside of the rubber core (3) is provided with an outer hole (3-2) communicated with the pin slot (3-1); the surface of the rubber core (3) is provided with a bent wire clamping slot (3-3) communicated with the tail part of the pin slot (3-1). The pressing-connection type high tension cable joint has good assembling performance, can improve the production efficiency and reduce the production cost. Simultaneously, the pressing-connection type high tension cable joint does not need to use welding, thus being beneficial to environment protection.

Description

Compression joint type high-tension cable joint

Technical field

The utility model relates to a kind of cable joint, particularly a kind of compression joint type high-tension cable joint.

Background technology

Cable joint on the market generally adopts the welding injection molding way to make now, glue core and shell are injection molded into one, high temperature and pressure are arranged during injection moulding, in time, can thrust the pad of the core insulation destruction of cable and heart yearn, ground wire, thereby influence insulation, proof voltage and the conduction property of cable joint.Chinese patent CN2476116Y discloses a kind of high-tension cable joint, the common cable joint is improved, outer cover suit on glue core and metal tube, dismounting, easy to maintenance, withstand voltage properties is good.But also there is following deficiency, the high cable of copper conductor price often adopts other conductors for it at present, other conductors do not have copper conductor to weld easily, therefore when welding, use acid, the heavier scaling powder of alkalescence, this solder flux that contains the public hazards element often is difficult for reaching environmental protection requirement, has influenced the quality and the production cost of product.And the solder flux of nuisanceless element, it is many that price often will exceed general solder flux, and welding efficiency is much lower, and production cost is significantly improved.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of assembly performance good, and the compression joint type high-tension cable joint that can enhance productivity, reduce production costs.

The technical scheme that realizes above-mentioned purpose is: a kind of compression joint type high-tension cable joint, form by contact pin, metal tube, glue core, cable and shell, glue in-core portion has needle tray, the afterbody of contact pin is positioned at the needle tray of glue core and is connected with the heart yearn of cable, metal tube is sleeved on glue core front portion, and the afterbody of metal tube has the pressure-ray film that stretches out outside pipe, outer cover suit is on metal tube and glue core, and the ground wire of cable is crimped on the card line plate, glue core outside has the outer hole that is communicated with needle tray, and the glue wicking surface has the crooked cable clamping interface that is communicated with the needle tray afterbody.

Further, the tail surface of contact pin has annular knurl.

After adopting technique scheme, because the glue wicking surface has crooked cable clamping interface and is communicated with needle tray, when outer cover suit on metal tube and glue core, cable in cable clamping interface can not move forward and backward owing to bending, can avoid the junction of the ground wire of the junction of the heart yearn of cable and contact pin and cable and metal tube to be subjected to damage of external force and come off or loose contact, assembly performance improves greatly, thereby guarantees the serviceability of cable joint, has improved the quality and the life-span of product.What the fit of this crimping simultaneously relied on is physical mechanical characteristic, needn't use too much production material, relies on simple machining process, just can reach quality requirement, has improved production efficiency, has reduced production cost.In addition, also need not to use welding, help environmental protection.

After adopting further technical scheme, because the afterbody of contact pin has annular knurl, this annular knurl is squeezed in the needle tray, can prevent that contact pin from rotating in the glue core.Guarantee that contact pin is connected reliably with the heart yearn of cable.

Description of drawings

Fig. 1 is a sectional structure schematic diagram of the present utility model;

Fig. 2 is the structural representation of contact pin of the present utility model;

Fig. 3 looks cutaway view for the left side of Fig. 2;

Fig. 4 is the structural representation of metal tube of the present utility model;

Fig. 5 is the A-A cutaway view of Fig. 4;

Fig. 6 is the vertical view of Fig. 4;

Fig. 7 is the perspective view of glue core of the present utility model.

Embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail.

Shown in Fig. 1～7, a kind of compression joint type high-tension cable joint, by contact pin 1, metal tube 2, glue core 3, cable 4 and shell 5 are formed, glue core 3 inside have needle tray 3-1, the afterbody of contact pin 1 is positioned at the needle tray 3-1 of glue core 3 and is connected with the heart yearn 4-1 of cable 4, metal tube 2 is sleeved on glue core 3 front portions, and the afterbody of metal tube 2 has the pressure-ray film 2-1 that stretches out outside pipe, shell 5 is sleeved on metal tube 2 and the glue core 3, and the ground wire 4-1 of cable 4 is crimped on the card line plate 2-1, glue core 3 outsides have the outer hole 3-2 that is communicated with needle tray 3-1, and glue core 3 surfaces have the crooked cable clamping interface 3-3 that is communicated with needle tray 3-1 afterbody.

As shown in Figure 1, 2, 3, the tail surface of contact pin 1 has annular knurl 1-1.Annular knurl 1-1 is squeezed among the needle tray 3-1, can prevent that contact pin 1 from rotating in glue core 3.Guarantee that contact pin 1 is connected reliably with the heart yearn 4-1 of cable 4.

As shown in Figure 5, has the projection 2-2 that stretches out to the tube hub line on the inwall of metal tube 2.Projection 2-2, be stuck in and prevent on the glue core 3 that metal tube 2 from moving and come off.

Installation steps of the present utility model are as follows: 1, the first outer hole 3-2 that the cored wire conductor 4-1 of cable 4 is penetrated on the glue core 3 enters among the glue core 3 needle tray 3-1; 2, contact pin 1 is penetrated the afterbody of glue core 3 needle tray 3-1, cored wire conductor 4-1 and contact pin 1 surface closely are connected among the needle tray 3-1 toward anterior pushing meeting; 3, metal tube 2 is sleeved on the glue core 3; 4, the ground wire 4-2 with cable 4 makes the ground wire 4-2 of cable 4 be connected with metal tube 2 with the afterbody card line plate 2-1 crimping of metal tube 2; 5, cable 4 is snapped among the glue core 3 surface curvature cable clamping interface 3-3; 6, shell 5 being penetrated cable 4 is sleeved on glue core 3 and the metal tube 2.

Claims

1, a kind of compression joint type high-tension cable joint, by contact pin (1), metal tube (2), glue core (3), cable (4) and shell (5) are formed, glue core (3) inside has needle tray (3-1), the afterbody of contact pin (1) is positioned at the needle tray (3-1) of glue core (3) and is connected with the heart yearn (4-1) of cable (4), metal tube (2) is sleeved on glue core (3) front portion, and the afterbody of metal tube (2) has the pressure-ray film (2-1) that stretches out outside pipe, shell (5) is sleeved on metal tube (2) and the glue core (3), and the ground wire (4-1) of cable (4) is crimped on the card line plate (2-1), it is characterized in that: glue core (3) outside has the outer hole (3-2) of connection needle tray (3-1), and glue core (3) surface has the crooked cable clamping interface (3-3) of connection needle tray (3-1) afterbody.

2, compression joint type high-tension cable joint according to claim 1, it is characterized in that: the tail surface of contact pin (1) has annular knurl (1-1).

3, compression joint type high-tension cable joint according to claim 1 and 2 is characterized in that: have the projection (2-2) of stretching out to the tube hub line on the inwall of metal tube (2).