CN207690523U - Multi-functional low-loss sensor cable - Google Patents

Abstract

A kind of multi-functional low-loss sensor cable, belongs to sensor private cable technical field.Include the oversheath of cable core and extrusion outside cable core, the cable core includes signal wire, cable core inner sheath, internal shield, cable core oversheath and external shielding layer, cable core inner sheath extrusion is outside signal wire, internal shield is located at outside cable core inner sheath, cable core oversheath extrusion is outside internal shield, external shielding layer is located at outside cable core oversheath, and the oversheath extrusion is outside external shielding layer.Simplify structure, save resource and embodies good economy；Ensure the stabilization of signal transmission with it is accurate；Signal transmission quality can be improved and be beneficial to improve flexibility and be readily bent, facilitate installation；Improve the wear-resistant effect of high-low temperature resistant oil resistant；Help to reduce cable core internal noise and can avoid the loss in signals transmission；With good anti-interference ability.

Description

Multi-functional low-loss sensor cable

Technical field

The utility model belongs to sensor private cable technical field, and in particular to a kind of multi-functional low-loss sensor electricity Cable.

Background technology

Modern industrial production especially in automated production during, sensor can play monitoring and control production process In parameter and using make that equipment is operated in normal condition or optimum state and then so that product quality is haved the function that best.Sensing The application field of device is not limited to preceding industrial production, such as is widely used in the fields such as automobile, robot and medical instrument.

Transport vehicle of the multi-functional low-loss sensor cable as sensor signal, whether the stabilization of signal transmission, Anti-interference and noise resisting ability power etc. can all directly influence the signal transmission quality of sensor.Simultaneously as cable is pacified It fills environment diversification, complicate, thus sensor cable is also required to have good high-low temperature resistant, vibration resistance, oil resistant, wear-resisting The performances such as damage, counter-bending, electromagnetism interference and use ensure signal transmission stability.

It is no lack of the technical information about sensor cable in disclosed Chinese patent literature, it is typical such as patent of invention Shen Please publication No. CN102646471A recommendation have " a kind of sensor private cable ", structure is：Complex root has the conductor of insulating layer （The patent is three）With the double-layer aluminum-foil wrapping layer being successively set on outside conductor, the double-deck copper-clad aluminium wire braiding layer, double-layer aluminum-foil Wrapping layer and low-smoke and halogen-free flame retardant polyolefin jacket.The patent as a result of combination metallic shield, thus for it is anti-interference with And improve signal stabilization and it is undistorted have contribute, but there are following shortcomings：First, as a result of from inside to outside gradually The folded double-layer aluminum-foil wrapping layer set, the double-deck copper-clad aluminium wire braiding layer and double-layer aluminum-foil wrapping layer, thus resource consumption has greatly Lose economy；Second, structure is relative complex and increases manufacture difficulty；Third, due to three wrapping layer realities from macrostructure It is a covering in matter, thus is not enough to the anti-interference ideal effect that the acquisition phase takes；Fourth, due to need to be in cable core gap and outside Setting filling（The 0009th section of specification）, thus signal transmission quality and the opposite shortcoming of flexibility.It is therefore desirable to be improved, Technical solution described below generates in this background.

Invention content

The task of the utility model be to provide one kind help to simplify structure and save resource and embody economy, Be conducive to obtain stable dielectric constant and drop low signal attenuation with ensure the stabilization of signal transmission with it is accurate, be beneficial to improve letter Number transmission quality simultaneously improves flexibility, has convenient for improving the wear-resistant effect of high-low temperature resistant oil resistant, helping to reduce inside cable core and make an uproar Sound and use the multi-functional low-loss sensor cable for avoiding signal transmission attenuation.

What the task of the utility model was performed by, a kind of multi-functional low-loss sensor cable, including cable core and Oversheath of the extrusion outside cable core, the cable core include signal wire, cable core inner sheath, internal shield, cable core oversheath and outer Shielded layer, outside signal wire, internal shield is located at outside cable core inner sheath cable core inner sheath extrusion, and cable core oversheath extrusion is shielded inside It covers outside layer, external shielding layer is located at outside cable core oversheath, and the oversheath extrusion is outside external shielding layer.

In a specific embodiment of the utility model, the signal wire includes that signal wire conductor and signal wire are led The insulation-coated layer of body, signal wire conductor are constituted by naked soft round copper wire coating lubricant is twisted, and signal wire conductor insulation coating is Polyethylene and extrusion is outside signal wire conductor.

In another specific embodiment of the utility model, the polyethylene is low density polyethylene (LDPE).

In another specific embodiment of the utility model, the cable core inner sheath is semiconductive flexible material.

In another specific embodiment of the utility model, the semiconductive flexible material is semiconductive polychlorostyrene second Alkene.

In the utility model there are one in specific embodiment, the internal shield is that count is 90% Naked round copper wire braiding net sleeve.

In the utility model more and in a specific embodiment, the cable core oversheath is polyethylene.

In a specific embodiment in turn of the utility model, the polyethylene is high density polyethylene (HDPE).

The utility model again more and in a specific embodiment, the external shielding layer is that count is 70% Naked round copper wire braiding net sleeve.

In the utility model again and then in a specific embodiment, the oversheath is PVC, PU or fluorubber.

The technique effect of technical solution provided by the utility model is as follows：Due to only being needed relative to prior art in, External shielding layer, thus can not only simplify structure, but also resource can be saved and embody good economy；Due to signal wire conductor insulation Coating uses low density polyethylene (LDPE), thus can get stable dielectric constant and reduce the signal decaying of signal wire conductor, Ensure the stabilization of signal transmission with it is accurate；Since cable core inner sheath uses semiconductive polyvinyl chloride, thus signal biography can be improved Transmission quality and be beneficial to improve flexibility and be readily bent, with facilitate installation；It is selected due to oversheath and has used PVC, PU or fluorine rubber Glue, thus the wear-resistant effect of high-low temperature resistant oil resistant can be improved；Since signal wire conductor is twisted structure by naked round copper wire coating lubricant At, thus help to reduce cable core internal noise and can avoid the loss in signals transmission；As a result of inside and outside screen Layer is covered, thus there is good anti-interference ability.

Description of the drawings

Fig. 1 is the embodiments of the present invention structure chart.

Specific implementation mode

Refer to Fig. 1, show the oversheath 2 of a cable core 1 and an extrusion outside cable core 1, cable core 1 include signal wire 11, Cable core inner sheath 12, internal shield 13, cable core oversheath 14 and external shielding layer 15,12 extrusion of cable core inner sheath is in signal wire 11 Outside, internal shield 13 is located at outside cable core inner sheath 12, and outside internal shield 13, external shielding layer 15 is located at 14 extrusion of cable core oversheath Outside cable core oversheath 14,2 extrusion of oversheath above-mentioned is outside external shielding layer 15.

Signal wire 11 above-mentioned includes signal wire conductor 111 and signal wire conductor insulation coating 112, signal wire conductor 111 are constituted by naked soft round copper wire coating lubricant is twisted, and signal wire conductor insulation coating 112 is polyethylene and extrusion is being believed Outside number line conductor 111, polyethylene described here is low density polyethylene (LDPE).

The non-finite number of time done through the applicant experiments have shown that, lubricant, that is, Chinese wax is applied to naked soft round copper wire surface Oil is twisted, and wire internal noise is significantly reduced, and reduces the loss in signals transmission.

In the present embodiment, cable core inner sheath 12 above-mentioned is semiconductive flexible material；Semiconductive flexible material above-mentioned For semiconductive polyvinyl chloride；Internal shield 13 above-mentioned is the naked round copper wire braiding net sleeve that count is 90%, cable core above-mentioned Oversheath 14 is polyethylene and is high density polyethylene (HDPE).

The formula of above mentioned semiconductive polyvinyl chloride is：In the Corvic of 100 parts of weight meters, plasticizer 10 parts of 55 parts, 25 parts of superconductive carbon black, 8 parts of dispersant, 2 parts of compatilizer and auxiliary agent, plasticizer is dioctyl phthalate, is surpassed Conductive black is JE6900, and compatilizer is oleamide or erucyl amide, and auxiliary agent includes antioxidant, lubricant and heat stabilizer, Antioxidant is phenolic antioxidant, and lubricant is polyethylene wax, and heat stabilizer is calcium-zinc composite stabilizing agent.

In the present embodiment, external shielding layer 15 above-mentioned is the naked round copper wire braiding net sleeve that count is 70%；It is above-mentioned Oversheath 2 is PVC, but PU or fluorubber can also be used.

In conclusion technical solution provided by the utility model compensates for the shortcoming in prior art, favorably accomplish Invention task has faithfully fulfilled the technique effect that applicant refers in technical effect column above.

Claims (10)

1. a kind of multi-functional low-loss sensor cable includes the oversheath (2) of cable core (1) and extrusion in cable core (1) outside, special Sign is that the cable core (1) includes signal wire (11), cable core inner sheath (12), internal shield (13), cable core oversheath (14) With external shielding layer (15), cable core inner sheath (12) extrusion signal wire (11) outside, internal shield (13) is located at cable core inner sheath (12) outside, cable core oversheath (14) extrusion internal shield (13) outside, external shielding layer (15) is located at cable core oversheath (14) outside, institute Oversheath (2) extrusion stated external shielding layer (15) outside.

2. multi-functional low-loss sensor cable according to claim 1, it is characterised in that signal wire (11) packet Signal wire conductor (111) and signal wire conductor insulation coating (112) are included, signal wire conductor (111) is coated by naked soft round copper wire Lubricant is twisted to be constituted, signal wire conductor insulation coating (112) be polyethylene and extrusion signal wire conductor (111) outside.

3. multi-functional low-loss sensor cable according to claim 2, it is characterised in that the polyethylene is low close Spend polyethylene.

4. multi-functional low-loss sensor cable according to claim 1, it is characterised in that the cable core inner sheath (12) it is semiconductive flexible material.

5. multi-functional low-loss sensor cable according to claim 4, it is characterised in that the semiconductive softness material Material is semiconductive polyvinyl chloride.

6. multi-functional low-loss sensor cable according to claim 1, it is characterised in that the internal shield (13) The naked round copper wire braiding net sleeve for being 90% for count.

7. multi-functional low-loss sensor cable according to claim 1, it is characterised in that the cable core oversheath (14) it is polyethylene.

8. multi-functional low-loss sensor cable according to claim 7, it is characterised in that the polyethylene is highly dense Spend polyethylene.

9. multi-functional low-loss sensor cable according to claim 1, it is characterised in that the external shielding layer (15) The naked round copper wire braiding net sleeve for being 70% for count.

10. multi-functional low-loss sensor cable according to claim 1, it is characterised in that the oversheath (2) is PVC, PU or fluorubber.