CN213092846U

CN213092846U - Cable with strong shielding resistance

Info

Publication number: CN213092846U
Application number: CN202021912483.XU
Authority: CN
Inventors: 杨杨
Original assignee: Shanghai Huihai Information Technology Co ltd
Current assignee: Shanghai Huihai Information Technology Co ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-04-30
Anticipated expiration: 2030-09-04

Abstract

The utility model discloses a cable that anti shielding ability is strong, which comprises a cable body, the surface spraying of cable body has the corrosion-resistant coating, the inboard fixedly connected with of corrosion-resistant coating seals the conductor shell, the inboard fixedly connected with insulating layer of sealing the conductor shell, the inboard fixed packing of insulating layer has the heat preservation filling layer, the inboard fixedly connected with cable core of heat preservation filling layer. The utility model discloses a seal the setting of conductor shell and insulating layer, seal the inside electric field of conductor shell and not influenced by shell external electric charge or electric field, no electric field in the shell during electrostatic balance, because shell outer wall response out abnormal charge, the field intensity that closes that arouses at shell inner space arbitrary point is zero, the response electric charge of shell outer wall has played automatically regulated's effect, and after the ground connection, it is poor to have solved present cable anti-shielding ability simultaneously, external electromagnetic signal etc. can disturb the cable, lead to the problem of the best performance of cable unable performance of performance.

Description

Cable with strong shielding resistance

Technical Field

The utility model relates to the technical field of cables, specifically be a cable that anti shielding ability is strong.

Background

The wire and cable is a wire product for transmitting electricity (magnetic) energy and realizing electromagnetic energy conversion, and the wire and cable in a broad sense is also called as a cable for short, and the cable in a narrow sense is an insulated cable, which can be defined as: a collection consisting of: one or more insulated wire cores, and a coating layer, a total protective layer and an outer protective layer which may be respectively arranged on the insulated wire cores are used for transmitting electric (magnetic) energy and information and realizing wire products for electromagnetic energy conversion.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cable that anti shielding ability is strong possesses the strong advantage of anti shielding ability, and it is poor to have solved the anti shielding ability of present cable, and external electromagnetic signal etc. can disturb the cable, leads to the cable can not exert the problem of best performance.

In order to achieve the above object, the utility model provides a following technical scheme: the cable with strong shielding resistance comprises a cable body, wherein a corrosion-resistant coating is sprayed on the surface of the cable body, a closed conductor shell is fixedly connected to the inner side of the corrosion-resistant coating, an insulating layer is fixedly connected to the inner side of the closed conductor shell, a heat-insulating filling layer is fixedly filled to the inner side of the insulating layer, and a cable core is fixedly connected to the inner side of the heat-insulating filling layer.

Preferably, a metal mesh enclosure is fixedly connected to the surface of the closed conductor shell.

Preferably, the surface of the cable body is fixedly provided with a warning label.

Preferably, the cable core has a gauge of 10 square millimeters.

Preferably, the surface of the warning label is coated with a fluorescent surface.

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

1. the utility model discloses a seal the setting of conductor shell and insulating layer, seal the inside electric field of conductor shell and not influenced by shell external electric charge or electric field, no electric field in the shell during electrostatic balance, because shell outer wall response out abnormal number electric charge, the field intensity that closes that arouses at shell inner space arbitrary point is zero, the response electric charge of shell outer wall has played automatically regulated's effect, and after ground connection, seal the inside not influenced by shell external electric charge of conductor shell, and better shielding performance has, the insulating layer is that copper core insulation shielding polyvinyl chloride sheath is soft, be a flexible conductor PVC insulated wire plus shielding layer and PVC sheath electric wire, better shielding effect has, metal mesh enclosure also can play shielded effect, it is poor to have solved present cable anti-shielding performance simultaneously, external electromagnetic signal etc. can interfere the cable, lead to the problem of cable can not exert best performance.

2. The utility model discloses a setting of corrosion-resistant coating, corrosion-resistant coating is third generation waterborne polyurethane coating (PUA), Polyurethane (PU) emulsion and polyacrylic acid (PAA) emulsion are compared with its solvent type product, low cost, safety, it is not burnt, it is nontoxic, advantages such as non-staining environment, pure PAA emulsion exists the wearability, water proofness and the poor defect of chemical resistance, the solid content is high, the range of application is not wide etc, PU and PAA have complementary action in nature, the compound emulsion of PUA has had both the advantage of the two, it is wear-resisting, corrosion-resistant and bright, it is soft flexible, water proofness and mechanical properties are good, characteristics such as weatherability is good, protection inside cable core that can be better.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the structure of the present invention;

fig. 3 is a cross-sectional view of the closed conductor shell structure of the present invention.

In the figure: 1. a cable body; 2. a corrosion-resistant coating; 3. a warning label; 4. enclosing the conductor shell; 5. an insulating layer; 6. a heat-insulating filling layer; 7. a cable core; 8. a metal mesh enclosure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description herein, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the patent. In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-3, a cable with strong shielding capability includes a cable body 1, a warning label 3 is fixedly attached to the surface of the cable body 1, a fluorescent surface is coated on the surface of the warning label 3, a corrosion-resistant coating 2 is sprayed on the surface of the cable body 1, the corrosion-resistant coating 2 is a third-generation aqueous polyurethane coating (PUA) by the arrangement of the corrosion-resistant coating 2, and compared with solvent-based products, a Polyurethane (PU) emulsion and a polyacrylic acid (PAA) emulsion have the advantages of low cost, safety, no combustion, no toxicity, no environmental pollution, etc., a pure PAA emulsion has the defect of poor wear resistance, water resistance and chemical resistance, high solid content, a wide application range, etc., PU and PAA have complementary effects in properties, and a PUA composite emulsion has the advantages of both wear resistance, corrosion resistance and brightness, flexibility, water resistance and good mechanical properties, the cable core 7 has good weather resistance and other characteristics, the inner cable core 7 can be well protected, the inner side of the corrosion-resistant coating 2 is fixedly connected with the closed conductor shell 4, the surface of the closed conductor shell 4 is fixedly connected with the metal mesh cover 8, the inner side of the closed conductor shell 4 is fixedly connected with the insulating layer 5, the inner side of the insulating layer 5 is fixedly filled with the heat-insulating filling layer 6, the inner side of the heat-insulating filling layer 6 is fixedly connected with the cable core 7, the specification of the cable core 7 is 10 square millimeters, through the arrangement of the closed conductor shell 4 and the insulating layer 5, the electric field in the closed conductor shell 4 is not influenced by the electric charge outside the shell or the electric field, no electric field exists in the shell during static balance, because the outer wall of the shell induces out abnormal charges, the combined field intensity excited at any point in the shell space is zero, the induced charges on the outer wall of the shell play a role of automatic, the cable has good shielding performance, the insulating layer 5 is soft with a copper core insulating and shielding polyvinyl chloride sheath, is a flexible conductor PVC insulating wire with an additional shielding layer and a PVC sheath wire, has good shielding effect, and the metal mesh enclosure 8 can also play a role in shielding, and simultaneously solves the problems that the existing cable is poor in anti-shielding performance, and external electromagnetic signals and the like can interfere the cable, so that the cable cannot play the best use performance.

The standard parts used in this document are commercially available, all the components in this document are customized according to the description of the specification and the drawings, and the connection relationship and specific structure between the layers in this document are all performed by the prior art, such as by mechanical methods, by adhesives, by various welding methods (such as thermal welding, ultrasonic welding, flux, welding, and fusion welding), and no specific description is made here.

When in use, the electric field in the closed conductor shell 4 is not influenced by charges or electric fields outside the shell through the arrangement of the closed conductor shell 4 and the insulating layer 5, no electric field exists in the shell when static electricity is balanced, because abnormal charges are induced on the outer wall of the shell, the combined field intensity excited at any point in the shell space is zero, the induced charges on the outer wall of the shell play a role in automatic adjustment, and after grounding, the interior of the closed conductor shell 4 is not influenced by the charges outside the shell, and has better shielding performance, the insulating layer 5 is soft with a copper core insulating shielding polyvinyl chloride sheath, is a soft conductor PVC insulating wire with an additional shielding layer and a PVC sheath wire, has better shielding effect, the metal mesh cover 8 also can play a shielding effect, and through the arrangement of the corrosion-resistant coating 2, the corrosion-resistant coating 2 is third-generation aqueous polyurethane coating (PUA), Polyurethane (PU) emulsion and polyacrylic acid (PAA) emulsion are compared with solvent-based products thereof, the pure PAA emulsion has the defects of poor wear resistance, water resistance and chemical resistance, high solid content, wide application range and the like, PU and PAA have complementary functions in properties, the PUA composite emulsion has the advantages of the PU and the PAA, has the characteristics of wear resistance, corrosion resistance, brightness, softness, elasticity, good water resistance and mechanical properties, good weather resistance and the like, and can better protect the internal cable core 7.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cable that anti shielding ability is strong, includes cable body (1), its characterized in that: the cable comprises a cable body (1) and is characterized in that a corrosion-resistant coating (2) is sprayed on the surface of the cable body (1), a closed conductor shell (4) is fixedly connected to the inner side of the corrosion-resistant coating (2), an insulating layer (5) is fixedly connected to the inner side of the closed conductor shell (4), a heat-insulating filling layer (6) is fixedly filled in the inner side of the insulating layer (5), and a cable core (7) is fixedly connected to the inner side of the heat-insulating filling layer (6).

2. The cable of claim 1, wherein the cable has a high shielding resistance, and the cable further comprises: and a metal net cover (8) is fixedly connected to the surface of the closed conductor shell (4).

3. The cable of claim 1, wherein the cable has a high shielding resistance, and the cable further comprises: the surface of the cable body (1) is fixedly provided with a warning label (3).

4. The cable of claim 1, wherein the cable has a high shielding resistance, and the cable further comprises: the specification of the cable core (7) is 10 square millimeters.

5. A cable with high shielding resistance according to claim 3, wherein: and a fluorescent surface is coated on the surface of the warning label (3).