CN203039937U

CN203039937U - Connector of heating wire

Info

Publication number: CN203039937U
Application number: CN 201220755458
Authority: CN
Inventors: 谢剑
Original assignee: WENLING SECOND INSULATING MATERIAL FACTORY
Current assignee: WENLING SECOND INSULATING MATERIAL FACTORY
Priority date: 2012-12-31
Filing date: 2012-12-31
Publication date: 2013-07-03
Anticipated expiration: 2022-12-31

Abstract

The utility model provides a connector of a heating wire, and pertains to the technical field of cables, so as to solve the problem that the metal sheath at the connector position of the heating wire in the prior art shifts. The heating wire comprises inner cores for electric conduction and heating and an insulation layer coating the inner core. The connector of the heating wire is arranged at the junction point of a plurality of intersected inner cores; the connector comprises a metal sheath fixed at the junction point of the inner cores; a fixed sheath made of plastics is fixed outside the metal sheath; a protective film is arranged between the metal sheath and the fixed sheath; and the metal sheath is coated by the protective film and bonded with the protective film into one. The connector of the heating wire can prevent the metal sheath from shifting, and the use security of the heating wire can be improved.

Description

A kind of joint of heating wire

Technical field

The utility model belongs to the cable technology field, has related to a kind of heating wire, has especially related to a kind of joint of heating wire.

Background technology

The heating cable inner core is made up of metal material, and the outside is made up of insulating barrier, screen and oversheath.After the heating cable energising, the inner core heating, and between 40～60 ℃ temperature, move, by the contact conduction, heat packs is trapped among the cement layer around it, passes to the floor again or ceramic tile, add hot-air by convection type then, the conduction heat accounts for 50% of heating cable caloric value.Just can produce the human body far infrared of suitable 7-10 micron the most after the heating cable energising simultaneously, to human body and space radiation, this part heat also accounts for 50% of caloric value, so the heating cable heating efficiency is close to 100%.

At present, heating cable is because the restriction of material and structure, and causes the use length of heating cable to be restricted, people mainly the mode by serial connection with heating cable inner core link together by root.And between two adjacent heating cables, has tie point; this tie point is mainly twined by inner core and constitutes; for protection that tie point is switched on; usually can metallic sheath be set at the tie point place; with metallic sheath tie point is wrapped up, protect this tie point on the one hand, the another side metallic sheath has conducting function; can promote that the energising of tie point is smooth and easy, afterwards the chuck of making at plastics of metallic sheath fixed outside.But, use the displacement that is easy to cause the interior metal cover when pullling at clamping head or cable, make metallic sheath not cover tie point fully, cause tie point to be revealed, leaky appears, caused great potential safety hazard.

Summary of the invention

There are the problems referred to above in the utility model at existing technology, has proposed a kind of joint that can effectively prevent the heating wire of metallic sheath displacement.

The utility model is realized by following technical proposal: a kind of joint of heating wire; heating wire comprises for the inner core of conductive exothermal and is wrapped in the outer insulating barrier of inner core; this joint is arranged at the contact place of many crossing inner cores; the metallic sheath that comprises the contact place that is fixed on described inner core; the fixed cover that described metallic sheath fixedly has plastics to make outward; it is characterized in that having diaphragm between described metallic sheath and the fixed cover, the protected film of described metallic sheath covers and is bonded as one with diaphragm.

In the joint of above-mentioned a kind of heating wire, described diaphragm adopts polytetrafluoroethylene or polyvinyl chloride or elastomeric material to make.

Compared with prior art, the joint of this heating wire utilizes diaphragm with metallic sheath covering and fixing by between metallic sheath and fixed cover diaphragm being set, thereby has avoided the displacement of metallic sheath, has improved the fail safe that heating wire uses.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Among the figure, 1, insulating barrier; 2, inner core; 3, metallic sheath; 4, fixed cover; 5, diaphragm.

Embodiment

Below be specific embodiment of the utility model, and by reference to the accompanying drawings the technical solution of the utility model be further described, but the utility model is not limited to these embodiment.

The joint of a kind of heating wire as shown in Figure 1, heating wire comprise the inner core 2 and the insulating barrier 1 that is wrapped in outside the inner core 2 for conductive exothermal, and this inner core 2 can adopt metal material to make, and such as corronil, also can be that carbon fiber bundle is made; This insulating barrier 1 comprises skin, internal layer, and skin can be made with polyvinyl chloride or elastomeric material; Internal layer can be made with polyvinyl fluoride; This joint is arranged at the contact place of many crossing inner cores 2, comprises the metallic sheath 3 at the contact place that is fixed on described inner core 2, and this metallic sheath 3 adopts corronil to make, and has electric conductivity preferably; The described metallic sheath 3 outer fixed covers 4 that fixedly have plastics to make, this fixed cover 4 adopts pvc material to make, and plays the effect of insulation; Has diaphragm 5 between described metallic sheath 3 and the fixed cover 4; diaphragm 5 adopts polytetrafluoroethylene or polyvinyl chloride or elastomeric material to make; metallic sheath 3 protected films 5 cover and are bonded as one with diaphragm 5; utilize diaphragm 5 that whole metallic sheath 3 is wrapped; thereby prevent the displacement phenomenon that metallic sheath 3 in use occurs; cause the contact place fault of leaking electricity to occur, improved the safety in utilization of heating wire.

Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Although this paper has used terms such as insulating barrier 1, inner core 2, metallic sheath 3, fixed cover 4, diaphragm 5 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.

Claims

1. the joint of a heating wire; heating wire comprises the inner core (2) for conductive exothermal and is wrapped in the outer insulating barrier (1) of inner core (2); this joint is arranged at the contact place of many crossing inner cores (2); the metallic sheath (3) that comprises the contact place that is fixed on described inner core (2); the outer fixed cover (4) that fixedly has plastics to make of described metallic sheath (3); it is characterized in that; have diaphragm (5) between described metallic sheath (3) and the fixed cover (4), the protected film of described metallic sheath (3) (5) covers and is bonded as one with diaphragm (5).

2. the joint of a kind of heating wire according to claim 1 is characterized in that, described diaphragm (5) adopts polytetrafluoroethylene or polyvinyl chloride or elastomeric material to make.