CN201123142Y

CN201123142Y - Novel single-end coaxial silicon rubber heater wire

Info

Publication number: CN201123142Y
Application number: CNU2007201311959U
Authority: CN
Inventors: 吴国庆
Original assignee: Jiangyin Weikang Electric Heater and Equipment Co Ltd
Current assignee: Jiangyin Weikang Electric Heater and Equipment Co Ltd
Priority date: 2007-12-05
Filing date: 2007-12-05
Publication date: 2008-09-24
Anticipated expiration: 2017-12-05

Abstract

The utility model relates to a novel single end coaxial type silicone rubber heating wire, which is suitable for the anti-freezing and the heating in the winter for the small-sized or medium-sized household appliances, the pipelines, the roofs, the roads, the bridges, the airport runways, the farmland laying, the flowers and trees. The novel single end coaxial type silicone rubber heating wire comprises a heating wire main body (3), a copper belt connector (2), a thermal shrinkage tube (4) and a power plug (5), wherein the heating wire main body (3) takes a tinned copper wire bundle as an inner conductor (3.1), a silicone rubber inner insulation layer (3.2) is clad outside the inner conductor (3.1) to form an inner conducting wire, resistance wires in different density of areas are winded on the surface of the inner conducting wire to form a resistance wire winding (3.3), a plurality of short circuit copper wires parallel with the inner conductor (3.1) are positioned at one end of the resistance wire winding (3.3) to form a central conductor, and a silicone rubber outer insulating layer (3.5) is clad outside the central conductor to form the heating wire main body (3). The novel single end coaxial type silicone rubber heating wire can ensure that a plurality of power areas are formed on only one heating wire, with higher power.

Description

The novel single-end coaxial silicon rubber heater wire

Technical field

The utility model relates to a kind of silicon rubber heater wire.Be applicable to antifreeze heating in winter of small-sized or mini domestic electrical equipment, pipeline, roof and road, bridge, airfield runway, farmland laying, flowers and trees etc. etc.Belong to the electric heating appliance technical field.

Background technology

Before the utility model is made, traditional heater wire be with glass fibre as heart yearn, after heart yearn surface uniform winding resistance wire forms the electric heating heart yearn, cover PVC or silicon rubber insulation cover back is connected to form heater wire with attaching plug in the outsourcing of electric heating heart yearn again.Its shortcoming is because the resistance wire that is wrapped on the glass fibre heart yearn twines the density uniformity, make that the resistance value on the whole piece heater wire is identical, power is identical, therefore can only be applicable to place, then can not be suitable for for the place that requires different capacity district bringing-up section to heater wire heating power requirement uniformity.In addition, as heart yearn, power is less with glass fibre for this kind heater wire.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of making to form a plurality of power district and the bigger novel single-end coaxial silicon rubber heater wire of power on the heater wire.

The purpose of this utility model is achieved in that a kind of novel single-end coaxial silicon rubber heater wire, it is characterized in that described heater wire comprises the heater wire body, copper strips connects, the tail end end socket, heat-shrink tube and attaching plug, described heater wire body is as inner wire with the tin-coated copper tow, outside inner wire, coat the silicon rubber inner insulating layer and form inside conductor, the resistance wire that twines the different densities district on the inside conductor surface forms the resistance wire pitch of the laps, place the many short circuit copper wires parallel at an end of resistance wire pitch of the laps and form center conductor with inner wire, outside center conductor, coat the silicon rubber external insulation layer and form the heater wire body, the resistance wire pitch of the laps termination of described heater wire body one end and many short circuit copper wire doublings form heating resistance wire, the short circuit copper wire, with the resistance wire pitch of the laps termination of the heater wire body other end and the inner wire termination formation heater that is intertwined, heater and the fixing copper strips that forms of copper strips are connect, outside copper strips connects, coat the tail end end socket that silicon rubber forms heater wire; End at the heater wire body adds cover PE heat-shrink tube, heating resistance wire, the short circuit copper wire of heater wire body one end are linked to each other with a pin of attaching plug, the inner wire termination of heater wire body one end links to each other with another pin of attaching plug, and the head end that forms heater wire is a plug end.

The utlity model has following characteristics:

1, the resistance wire pitch of the laps forms a plurality of power district in the density difference of inside conductor surface winding on center conductor, thus the demand in the place of the different capacity district bringing-up section that can meet the demands.

2, with the tin-coated copper tow as heart yearn, power is bigger.

3, place the short circuit copper wire at resistance wire pitch of the laps one end and form the i.e. section of heating not of the section of opening circuit.

Description of drawings

Fig. 1 is the general structure schematic diagram of the utility model single end coaxial silicon rubber heater wire.

Fig. 2 is the connection diagram of heater wire body of the present utility model and attaching plug.

Fig. 3 is a heater wire body construction schematic diagram of the present utility model.

Fig. 4 is the center conductor structural representation of heater wire body of the present utility model.

Among the figure: tail end end socket 1, copper strips connect 2, heater wire body 3, heat-shrink tube 4, attaching plug 5, inner wire 3.1, inner insulating layer 3.2, resistance wire pitch of the laps 3.3, short circuit copper wire 3.4, external insulation layer 3.5 heating resistance wires, short circuit copper wire 3.6, heater 3.7, pin 5.1, support 5.2.

Embodiment

Referring to Fig. 1～2, the novel single-end coaxial silicon rubber heater wire that the utility model is related, mainly by heater wire body 3, copper strips connect 2, tail end end socket 1, heat-shrink tube 4 and attaching plug 5 form.

Referring to Fig. 3, described heater wire body is as inner wire 3.1 with the tin-coated copper tow, outside inner wire 3.1, coat silicon rubber inner insulating layer 3.2 and form inside conductor, the resistance wire that twines the different densities district on the inside conductor surface forms resistance wire pitch of the laps 3.3, place four short circuit copper wire 3.4 formation center conductors (as Fig. 4) parallel at an end of resistance wire pitch of the laps 3.3 with inner wire 3.1, this center conductor one end is a shorting region, and the other end and interlude are the power districts.Outside center conductor, coat silicon rubber external insulation layer 3.5 and form heater wire body 3, resistance wire pitch of the laps termination and four short circuit copper wire 3.4 doublings of heater wire body 3 one ends are formed heating resistance wire, short circuit copper wire 3.6, the resistance wire pitch of the laps termination of heater wire body 3 other ends and inner wire 3.1 terminations are intertwined form heater 3.7, the fixing copper strips that forms of heater 3.7 and copper strips is connect 2 and is convenient to be connected fastening, connect the tail end end socket 1 of mold pressing silicon rubber formation heater wire 2 outside at copper strips; Add cover PE heat-shrink tube 4 at heater wire body 3 one ends, as Fig. 1.

Heating resistance wire, the short circuit copper wire 3.6 of heater wire body 3 one ends are linked to each other with a pin 5.1 of attaching plug 5, inner wire 3.1 terminations of heater wire body 3 one ends link to each other with another pin 5.1 of attaching plug 5, the head end that forms heater wire is a plug end, as Fig. 2.

The utility model can also twine the wrapped silk of one deck to fix the center conductor (not shown) at center conductor external application polyester drawn yarns.

Claims

1, a kind of novel single-end coaxial silicon rubber heater wire is characterized in that described heater wire comprises that heater wire body (3), copper strips connect (2), tail end end socket (1), heat-shrink tube (4) and attaching plug (5),

Described heater wire body (3) is as inner wire (3.1) with the tin-coated copper tow, outside inner wire (3.1), coat silicon rubber inner insulating layer (3.2) and form inside conductor, the resistance wire that twines the different densities district on the inside conductor surface forms resistance wire pitch of the laps (3.3), place the many short circuit copper wires (3.4) parallel at an end of resistance wire pitch of the laps (3.3) and form center conductor with inner wire (3.1), outside center conductor, coat silicon rubber external insulation layer (3.5) and form heater wire body (3)

The resistance wire pitch of the laps termination of described heater wire body (3) one ends and many short circuit copper wires (3.4) doubling form heating resistance wire, short circuit copper wire (3.6), the resistance wire pitch of the laps termination of heater wire body (3) other end and inner wire (3.1) termination be intertwined form heater (3.7), the fixing copper strips that forms of heater (3.7) and copper strips is connect (2), connect at copper strips and coat the tail end end socket (1) that silicon rubber forms heater wire outside (2);

Add cover PE heat-shrink tube (4) at heater wire body (3) one ends, heating resistance wire, the short circuit copper wire (3.6) of heater wire body (3) one ends are linked to each other with a pin (5.1) of attaching plug (5), inner wire (3.1) termination of heater wire body (3) one ends links to each other with another pin (5.1) of attaching plug (5), and the head end that forms heater wire is a plug end.

2, a kind of novel single-end coaxial silicon rubber heater wire according to claim 1 is characterized in that twining the wrapped silk of one deck at center conductor external application polyester drawn yarns.