CN112885510A

CN112885510A - Combined power supply control line

Info

Publication number: CN112885510A
Application number: CN202110277477.4A
Authority: CN
Inventors: 陈杰
Original assignee: Guangzhou Yuedao Industrial Co ltd
Current assignee: Guangzhou Yuedao Industrial Co ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-06-01

Abstract

The invention provides a combined power supply control line which comprises an outer layer sheath, a power line and a control line, wherein the outer layer sheath is coated outside the power line and the control line, the power line comprises a conductive wire core and a first insulating layer coated outside the conductive wire core, the control line comprises an inner layer sheath and two control insulating wires which are mutually twisted, the inner layer sheath is coated outside the two control insulating wires, each control insulating wire comprises a control wire core and a second insulating layer, the second insulating layer is coated outside the whole control wire core, an elastic filling strip which is axially arranged along the two control insulating wires is arranged in the control line, the inner layer sheath coats the elastic filling strip, the elastic filling strip is adjacent to the two control insulating wires, and the two control insulating wires and the elastic filling strip are twisted together. When the combined power supply control line is moved and pulled, under the elastic action of the elastic filling strips, the combined power supply control line can keep certain bending resistance without excessive damage and aging. Thereby achieving the effect of integrating the double functions of conducting and controlling.

Description

Combined power supply control line

Technical Field

The invention relates to the technical field of cables, in particular to a combined power supply control line.

Background

The control line cable needs to arrange a power line to supply power to a system in the using process, and the power line is usually arranged independently at present, so that repeated construction of a line is caused, and the wiring time is long and the wiring cost is high.

The existing combined power supply control line integrating the power supply line and the control line does not need to arrange the power supply line independently, so that the problems of long wiring time and high wiring cost can be solved. The control line of the combined power supply control line is generally provided with two control insulated conductors (namely twisted pairs) which are twisted with each other, and electric waves emitted by the two control insulated conductors which are twisted with each other can be mutually counteracted when the control line transmits a control signal, so that the signal interference is effectively reduced. However, if the combined power control line is excessively bent due to movement and pulling, two control insulated wires twisted with each other in the control line are easily extruded and pulled to be deformed, and thus signal interference cannot be effectively reduced.

Disclosure of Invention

The invention aims to solve the technical problem of how to avoid excessive bending of the combined power supply control line.

In order to solve the technical problems, the invention provides a combined power supply control line which comprises an outer layer sheath, a power line and a control line, wherein the outer layer sheath is covered outside the power line and the control line, the power line comprises a conductive wire core and a first insulating layer covered outside the conductive wire core, the control line comprises an inner layer sheath and two control insulating wires which are twisted with each other, the inner layer sheath is covered outside the two control insulating wires, each control insulating wire comprises a control wire core and a second insulating layer, the second insulating layer is covered outside the control wire core, an elastic filling strip which is arranged along the axial direction of the two control insulating wires is arranged in the control line, the inner layer sheath covers the elastic filling strip, the elastic filling strip is adjacent to the two control insulating wires, and the two control insulating wires and the elastic filling strip are twisted together.

Preferably, the material of the elastic filling strip is thermoplastic polyester elastomer.

Preferably, the inner sheath comprises a sheath layer and an aluminum foil belting layer, the aluminum foil belting layer is coated outside the two control insulated wires, and the sheath layer is coated outside the aluminum foil belting layer.

Preferably, the material of the sheath layer is polyvinyl chloride.

Preferably, the material of the outer sheath is polyvinyl chloride.

Preferably, the material of the first insulating layer is polyvinyl chloride.

Preferably, the material of the second insulating layer is polyvinyl chloride.

Preferably, the power supply line has two, and the two power supply lines are twisted with each other.

Preferably, the conductive wire core comprises a plurality of bare copper wires twisted with each other.

Preferably, the control wire core comprises a plurality of bare copper wires stranded with each other.

The invention has the following beneficial effects: because the control line is internally provided with the elastic filling strips which are axially arranged along the two control insulated wires, and the two control insulated wires and the elastic filling strips are twisted together, the combined power supply control line can keep certain bending resistance and cannot be bent excessively under the elastic action of the elastic filling strips when being moved and pulled.

Drawings

Fig. 1 is a radial cross-sectional view of a combination power control line.

Detailed Description

The invention is described in further detail below with reference to specific embodiments.

As shown in fig. 1, the combined power control line includes an outer sheath 1, two power lines 2 and a control line 3, the two power lines 2 are twisted with each other, and the outer sheath 1 covers the two power lines 2 and the control line 3.

Each power line 2 comprises a conductive wire core 21 and a first insulating layer 22, the conductive wire core 21 comprises seven bare copper wires which are mutually twisted, and the first insulating layer 22 is coated outside the conductive wire core 21.

The control wire 3 comprises an inner layer sheath 32 and two control insulated wires 31 twisted with each other, and the inner layer sheath 32 covers the two control insulated wires 31. Each control insulated conductor 31 comprises a control wire core 311 and a second insulating layer 312, the control wire core 311 comprises seven bare copper wires which are mutually twisted, and the second insulating layer 312 is coated outside the control wire core 311. The inner sheath 32 includes a sheath layer 321 and an aluminum foil tape layer 322, the aluminum foil tape layer 322 is coated outside the two control insulated wires 31, the sheath layer 321 is coated outside the aluminum foil tape layer 322, and then the aluminum foil tape layer 322 can reduce the interference of external signals to the control signals transmitted by the two control insulated wires 31.

Two elastic filling strips 33 are arranged in the control wire 3, the inner layer sheath 32 covers the elastic filling strips 33, the elastic filling strips are adjacent to the two control insulated wires 31, the two elastic filling strips 33 are axially arranged along the two control insulated wires 31, and the two control insulated wires 31 are twisted together with the two elastic filling strips 33. The elastic filling strip 33 is made of thermoplastic polyester elastomer (TPEE), which has excellent elasticity and extremely high tensile strength, so that when the combined power supply control line is moved and pulled, the combined power supply control line can keep certain bending resistance without excessive bending under the elastic action of the elastic filling strip 33, thereby avoiding deformation caused by mutual extrusion and pulling of two control insulated wires 31 twisted with each other in the control line 3.

In this embodiment, the outer sheath 1, the first insulating layer 22, the second insulating layer 312, and the sheath 321 are all made of polyvinyl chloride (PVC), which has characteristics of water resistance, insulation, and high mechanical strength, so as to protect the combined power control line.

The above description is only the embodiments of the present invention, and the scope of protection is not limited thereto. The insubstantial changes or substitutions will now be made by those skilled in the art based on the teachings of the present invention, which fall within the scope of the claims.

Claims

1. Combination power supply control line, including outer sheath (1), power cord (2) and control line (3), outer sheath (1) cladding is outside power cord (2) and control line (3), power cord (2) include conductive core (21) and cladding first insulating layer (22) outside conductive core (21), control line (3) include inner sheath (32) and two control insulated conductor (31) of transposition each other, inner sheath (32) cladding is outside two control insulated conductor (31), and every control insulated conductor (31) includes control core (311) and second insulating layer (312), second insulating layer (312) cladding is outside control core (311), characterized by, be equipped with in control line (3) along the elasticity filler strip (33) of two control insulated conductor (31) axial settings, inner sheath (32) cladding elasticity filler strip (33), the elastic filling strip (33) is adjacent to the two control insulated wires (31), and the two control insulated wires (31) are twisted with the elastic filling strip (33).

2. The combination power control line of claim 1, wherein the material of the elastic filler strip (33) is thermoplastic polyester elastomer.

3. The combination power control line of claim 1, wherein the inner sheath (32) comprises a sheath layer (321) and an aluminum foil tape layer (322), the aluminum foil tape layer (322) covers the two control insulated wires (31), and the sheath layer (321) covers the aluminum foil tape layer (322).

4. The combination power control line of claim 3, wherein the material of the sheath layer (321) is polyvinyl chloride.

5. The combination power control line of claim 1, wherein the outer sheath (1) is made of polyvinyl chloride.

6. The combination power control line as defined in claim 1, wherein the material of the first insulating layer (22) is polyvinyl chloride.

7. The combination power control line of claim 1, wherein the second insulating layer (312) is made of polyvinyl chloride.

8. A combined power control line according to claim 1, characterized in that there are two power lines (2), and the two power lines (2) are twisted with each other.

9. The combination power control line of claim 1, wherein the conductive core (21) comprises a plurality of bare copper wires twisted about one another.

10. The combination power control line of claim 1, wherein the control line core (311) comprises a plurality of bare copper wires twisted about one another.