CN209982766U

CN209982766U - Multi-core shielding signal heating cable

Info

Publication number: CN209982766U
Application number: CN201822161691.XU
Authority: CN
Inventors: 吴忠良
Original assignee: Jiangsu Emerging Edge High Temperature Cable Co Ltd
Current assignee: Jiangsu Emerging Edge High Temperature Cable Co Ltd
Priority date: 2018-12-22
Filing date: 2018-12-22
Publication date: 2020-01-21
Anticipated expiration: 2028-12-22

Abstract

The utility model provides a multi-core shielding signal heating cable, which is connected with a temperature controller; the heating cable sequentially comprises a heating wire core, a signal wire, a shielding layer and a protective sleeve from inside to outside; the heating wire core and the signal wire are both arranged in the shielding layer, the signal wire is close to the heating wire core, and the signal wire and the heating cable are both connected with the temperature controller; the heating wire core and the signal wire are fixed inside the shielding layer through a fixing device. Inside the signal line that will detect the heating cable temperature directly adds into the cable, adjacent heating core, signal line and heating core all link to each other with the temperature controller, and the signal line is at the inside direct detection temperature of cable, and the result is more accurate.

Description

Multi-core shielding signal heating cable

Technical Field

The utility model relates to a cable especially relates to a multicore shielding signal heating cable.

Background

The heating cable is made into a cable structure, takes electric power as energy, utilizes alloy resistance wires to perform electric heating to achieve the effect of heating or heat preservation, is generally divided into a single conductor and a double conductor and is called as the heating cable, an inner core of the heating cable consists of cold wires and hot wires, an outer layer consists of an insulating layer, a grounding layer, a shielding layer and an outer sheath, after the heating cable is electrified, the hot wires generate heat and operate at the temperature of 40 ~ 60 ℃, the heating cable embedded in a filling layer transmits the heat energy to a heated body in a heat conduction (convection) mode and a far infrared radiation mode of 8-13um, and the ground radiation heating system of the heating cable has the composition and the working principle of a power supply line → a transformer → a low-voltage distribution device → a household electric meter → the heating cable → the indoor radiation of heat through a floor.

At present, heating cable's temperature detection and control are all accomplished by the temperature controller, and the temperature controller is equipped with special temperature-detecting device, lays the cable according to the design drawing, with the one end and the temperature sensor of cable, in the PVC embedded pipe that passes through from ground is connected to the temperature controller end box, fixes the distance of cable to end box, and ground extension uses the plastics bail fixed with cable and wire net, then lays according to the U type is straight. The general temperature sensor is arranged outside the cable, and not only needs to be installed independently, but also the accuracy of temperature detection needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a multi-core shielding signal heating cable.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a multi-core shielding signal heating cable is connected with a temperature controller; the heating cable sequentially comprises a heating wire core, a signal wire, a shielding layer and a protective sleeve from inside to outside; the heating wire core and the signal wire are both arranged in the shielding layer, the signal wire is close to the heating wire core, and the signal wire and the heating cable are both connected with the temperature controller;

the heating wire core comprises a wire and an insulating layer, the insulating layer wraps the outside of the wire, the signal wire comprises a signal wire core and a silica gel layer, and the silica gel layer wraps the outside of the signal wire core; the heating wire core and the signal wire are fixed inside the shielding layer through a fixing device.

Preferably, the number of the heat emitting wire cores is at least 2.

Preferably, the number of the signal lines is 1-2.

Preferably, when the number of the signal lines is 2, two signal lines are dispersedly arranged in the plurality of heating wire cores.

Preferably, the fixing device is a high-temperature-resistant silicone buckle.

Preferably, the shielding layer is a copper wire braided layer, and the shielding layer is attached to and wraps the heating wire core and the signal wire.

Compared with the prior art, the beneficial effects of the utility model are that:

the signal line that will detect the heating cable temperature directly adds into the cable inside, adjacent heating core, and signal line and heating core all link to each other with the temperature controller, and the inside direct detection temperature of signal line at the cable, the result is more accurate, and the result that detects out transmits for the control by temperature change table, controls the power of heating cable after feedback and calculation. The temperature control meter does not need to measure temperature any more, and only needs to receive temperature data and send a temperature control command, so that the temperature control meter is simpler to install, and the measurement result is more accurate.

Drawings

Fig. 1 is a schematic structural diagram of a multi-core shielded signal heating cable.

Detailed Description

In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.

Referring to fig. 1, the utility model provides a multi-core shielding signal heating cable, which is connected with a temperature controller; the heating cable sequentially comprises a heating wire core 1, a signal wire 2, a shielding layer 3 and a protective sleeve 4 from inside to outside; heating wire core 1 all installs in the inside of shielding layer 3 with signal line 2, and signal line 2 is adjacent heating wire core 1, and signal line 2 and heating cable all are connected with the temperature controller. The temperature controller receives the temperature signal detected and transmitted by the signal wire and converts the temperature signal into a digital signal, and a control instruction is generated after calculation processing of the control system to control the temperature of the heating cable.

The heating wire core 1 comprises a wire 11 and an insulating layer 12, the insulating layer 12 wraps the outside of the wire 11, the signal wire 2 comprises a signal wire core 21 and a silica gel layer 22, and the silica gel layer 22 wraps the outside of the signal wire core 21; the heating wire core 1 and the signal wire 2 are fixed inside the shielding layer 3 through the fixing device 5, so that the position of the signal wire 2 can be prevented from being unfixed. The signal wire 2 and the heating wire core 1 are separated by the silica gel layer 21 and the insulating layer 11, so that the use safety of the cable can be improved.

Preferably, the number of the heating wire cores 1 is at least 2, and the plurality of heating wire cores 1 facilitate the fixation of the signal wires 2 and the accuracy of temperature measurement.

Preferably, the number of the signal lines 2 is 1-2, and the excessive number of the signal lines 2 increases the diameter of the heating cable, but does not help the accuracy of temperature measurement, and is inconvenient in practical application.

Preferably, when the number of the signal wires 2 is 2, two signal wires 2 are dispersedly arranged in the plurality of heating wire cores 1, and the dispersedly arranged signal wires help to balance the temperature of the heating wire cores 1, and can prevent the situation that the measurement is wrong due to the fault of part of the heating wire cores 1.

Preferably, fixing device 5 is high temperature resistance silica gel buckle, and the buckle is together signal line and heating wire core buckle, and is convenient durable.

Preferably, the shielding layer 3 is a copper wire braid layer, and the shielding layer 3 is attached to and wraps the heating wire core 1 and the signal wire 2.

From top to bottom, the utility model discloses inside the signal line that will detect the heating cable temperature directly adds into the cable, adjacent heating core, signal line and heating core all link to each other with the temperature controller, and the inside direct detection temperature of signal line on-line cable, the result is more accurate, and the result transmission that detects out is for the control by temperature change table, controls the power of heating cable after feedback and calculation. The temperature control meter does not need to measure temperature any more, and only needs to receive temperature data and send a temperature control command, so that the temperature control meter is simpler to install, and the measurement result is more accurate.

The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.

Claims

1. A multi-core shielding signal heating cable is connected with a temperature controller; the method is characterized in that: the heating cable sequentially comprises a heating wire core, a signal wire, a shielding layer and a protective sleeve from inside to outside; the heating wire core and the signal wire are both arranged in the shielding layer, the signal wire is close to the heating wire core, and the signal wire and the heating cable are both connected with the temperature controller;

2. The shielded signal heating cable of claim 1, wherein: the number of the heating wire cores is at least 2.

3. The shielded signal heating cable of claim 1, wherein: the number of the signal lines is 1-2.

4. The shielded signal heating cable of claim 3, wherein: when the quantity of signal line is 2, two the signal line dispersion sets up in many the heating wire core.

5. The shielded signal heating cable of claim 1, wherein: the fixing device is a high-temperature-resistant silica gel buckle.

6. The shielded signal heating cable of claim 1, wherein: the shielding layer is a copper wire braided layer, and the shielding layer is attached to and wraps the heating wire core and the signal wire in a climbing mode.