CN217181891U

CN217181891U - Silicon rubber high-voltage signal shielding wire

Info

Publication number: CN217181891U
Application number: CN202123317211.2U
Authority: CN
Inventors: 谢枕毅; 谢国华; 陆和平
Original assignee: Jiangyin Heat Resistant Wire and Cable Factory Co Ltd
Current assignee: Jiangyin Heat Resistant Wire and Cable Factory Co Ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-08-12
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a silicon rubber high-voltage signal shielding wire, which comprises a core cable; the outer surface of the core cable is uniformly distributed with outer leads along the circumference, the outer surface of each outer lead is provided with an insulating foaming layer, the outer surface of each insulating foaming layer is sequentially wrapped with an inner shielding layer and an outer shielding layer, the outer surface of each outer shielding layer is wrapped with an outer flame-retardant wrapping layer, and the outer surface of each outer flame-retardant wrapping layer is wrapped with an outer silicone rubber sleeve; the utility model discloses set up outer shielding layer and internal shield layer, and the internal and external shielding layer has adopted silver-plated copper line weaving layer and aluminium foil parcel layer respectively, the interference of external electromagnetism when not only can be to high-voltage signal transmission, and can guarantee that the conductor of inside can not cause the interference to external signal, the holistic insulating effect of shielded wire can be guaranteed to the inside and outside silicon rubber cover that the cooperation set up, can not take place the condition of puncturing because of high-voltage output.

Description

Silicon rubber high-voltage signal shielding wire

Technical Field

The utility model relates to a shielded wire technical field specifically is a silicon rubber high-voltage signal shielded wire.

Background

The shielding wire is a transmission line which wraps up a signal wire by using a metal mesh braid, the braid is generally red copper or tinned copper, the shielding wire is a conducting wire with a metal braided fabric shell which is specially adopted for reducing the influence of an external electromagnetic field on a power supply or a communication line, and the shielding wire also has the function of preventing the line from radiating electromagnetic energy outwards.

The existing signal shielding wire has the defects that:

1. the existing signal shielding wire is mainly used for common voltage signal transmission, a shielding layer generally adopts a single-layer shielding structure, and an insulating layer is broken down due to overhigh voltage when high-voltage signals are transmitted, so that the anti-interference failure of the shielding layer is caused, and the shielding effect can not be ensured.

2. The existing signal shielding wire is generally of a single-wire-core structure, only one cable can transmit one group of signals, normal transmission of the signals cannot be guaranteed when the conductors are damaged locally, and the transmission stability is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a silicon rubber high voltage signal shielded wire to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a silicon rubber high-voltage signal shielding wire comprises a core cable; the outer surface of the core cable is uniformly distributed with outer leads along the circumference, the outer surface of each outer lead is provided with an insulating foaming layer, the outer surface of each insulating foaming layer is sequentially wrapped with an inner shielding layer and an outer shielding layer, the outer surface of each outer shielding layer is wrapped with an outer flame-retardant wrapping layer, and the outer surface of each outer flame-retardant wrapping layer is wrapped with an outer silicone rubber sleeve;

the inner shielding layer comprises a silver-plated copper wire weaving layer and an inner polyethylene film wrapping layer, the outer shielding layer comprises an aluminum foil wrapping layer and an outer polyethylene film wrapping layer, and a second grounding drainage wire and a first grounding drainage wire are respectively arranged inside the silver-plated copper wire weaving layer and the aluminum foil wrapping layer.

Preferably, an outer fire-resistant mica tape layer wraps the space between the outer shielding layer and the inner shielding layer, and the inner side face of the inner shielding layer wraps the inner fire-resistant mica tape layer.

Preferably, the outer surface of the insulation foaming layer is woven with a tensile braid, and the interior of the insulation foaming layer between the outer wires is filled with high-temperature resistant rubber filler.

Preferably, the outer lead comprises an inner outer conductor, and the outer surface of the outer conductor is wrapped by a second silicon rubber insulating sleeve.

Preferably, the core wire is stranded inside the core cable, and the outer surface of the core wire is wrapped with an inner silicone rubber sheath.

Preferably, the core wire comprises an inner core conductor, the outer surface of the core conductor is wrapped by a first silicon rubber insulating sleeve, and an inner silicon rubber sheath between the core wires) is filled with a high-temperature-resistant rubber filler.

Preferably, the second grounding drain wire and the first grounding drain wire are wrapped by grounding conductors, and side contact surfaces electrically connected with the silver-plated copper wire braid layer and the aluminum foil wrapping layer are arranged on two sides of the grounding conductors respectively.

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

1. the utility model discloses set up outer shielding layer and internal shield layer, and the internal and external shielding layer has adopted silver-plated copper line weaving layer and aluminium foil parcel layer respectively, the interference of external electromagnetism when not only can be to high-voltage signal transmission, and can guarantee that the conductor of inside can not cause the interference to external signal, the holistic insulating effect of shielded wire can be guaranteed to the inside and outside silicon rubber cover that the cooperation set up, can not take place the condition of puncturing because of high-voltage output.

2. The utility model discloses the outer wire has been distributed along the circumference at the surface of core cable, and has set up the interior silicon rubber canning between heart yearn and the outer wire and carry out insulation protection, the insulating effect between two sets of conductors of assurance that the thigh rubber insulation cover that the cooperation set up can be abundant, the complementary interference of work of two sets of conductors, when a set of conductor transmission breaks down, the work of transmission can be undertaken to another group for the signal transmission stability of shielded wire is higher.

Drawings

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

fig. 2 is a perspective view of the present invention;

FIG. 3 is an enlarged view of a detail A of FIG. 1 according to the present invention;

fig. 4 is an enlarged schematic view of the core cable of fig. 1 according to the present invention.

In the figure: 1. an outer silicone rubber sleeve; 2. an outer flame retardant wrapping layer; 3. an outer shield layer; 301. an aluminum foil wrapping layer; 302. an outer polyethylene film wrapping layer; 303. a first ground drain line; 4. an outer layer of refractory mica tape; 5. an inner shield layer; 501. a silver-plated copper wire braid layer; 502. an inner polyethylene film wrapping layer; 503. a second ground drain line; 6. an inner refractory mica tape layer; 7. a tensile braid layer; 8. an insulating foam layer; 9. a core cable; 901. an inner silicon rubber sheath; 10. a core wire; 1001. a first silicone rubber insulating sleeve; 1002. a core conductor; 11. an outer lead; 1101. a second silicone rubber insulating sleeve; 1102. an outer conductor; 12. a ground conductor; 1201. a side contact surface.

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 of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a silicon rubber high-voltage signal shielding wire comprises a core cable 9; the outer surface of the core cable 9 is uniformly distributed with outer leads 11 along the circumference, the outer surface of the outer lead 11 is provided with an insulating foaming layer 8, the outer surface of the insulating foaming layer 8 is sequentially wrapped with an inner shielding layer 5 and an outer shielding layer 3, the outer surface of the outer shielding layer 3 is wrapped with an outer flame-retardant wrapping layer 2, and the outer surface of the outer flame-retardant wrapping layer 2 is wrapped with an outer silicone rubber sleeve 1;

the inner shielding layer 5 comprises a silver-plated copper wire woven layer 501 and an inner polyethylene film wrapping layer 502, the outer shielding layer 3 comprises an aluminum foil wrapping layer 301 and an outer polyethylene film wrapping layer 302, and a second grounding drainage wire 503 and a first grounding drainage wire 303 are respectively arranged inside the silver-plated copper wire woven layer 501 and the aluminum foil wrapping layer 301;

specifically, the outer conductor 11 can cooperate with the core cable 9 to transmit high-voltage signals, and another group can continue to bear signal transmission work when one group of the outer conductor 11 and the core cable 9 is damaged, thereby ensuring the stability of signal transmission of the shielded wire, the inner shielding layer 5 and the outer shielding layer 3 can play a role of double-layer shielding, not only can be used for shielding outwards, but also can be used for shielding inwards, the safety of the transmission environment of the shielded wire is ensured, the outer flame-retardant wrapping layer 2 can play a role of flame-retardant protection, the outer silicone rubber sleeve 1 can further protect the outside of the shielded wire, the silver-plated copper wire braided layer 501 and the wrapping aluminum foil layer 301 in the inner shielding layer 5 and the outer shielding layer 3 can play a role of shielding electromagnetic interference, the inner polyethylene film wrapping layer 502 and the outer polyethylene film wrapping layer 302 can play a role of insulation drainage protection, and the second grounding wire 503 and the first grounding wire 303 can discharge the current in the inner shielding layer 5 and the outer shielding layer 3 to a great extent Therefore, the safety of the high-voltage shielding wire in the working process is ensured.

Further, an outer fire-resistant mica tape layer 4 wraps between the outer shielding layer 3 and the inner shielding layer 5, and an inner fire-resistant mica tape layer 6 wraps the inner side surface of the inner shielding layer 5;

specifically, outer fire-resistant mica tape layer 4 and interior fire-resistant mica tape layer 6 can increase the high temperature resistance of outer shielding layer 3 and internal shield layer 5, and then guarantee the security of high voltage shielded wire when long-time work.

Furthermore, the outer surface of the insulating foaming layer 8 is braided with a tensile braid 7, and the inside of the insulating foaming layer 8 between the outer wires 11 is filled with high temperature resistant rubber filler;

specifically, tensile weaving layer 7 can increase the tensile property of whole cable, and the high temperature resistant performance of improvement cable that high temperature resistant rubber filler can be further.

Further, the outer lead 11 includes an inner outer conductor 1102, and the outer surface of the outer conductor 1102 is wrapped with a second silicone rubber insulating sleeve 1101;

specifically, the outer conductor 1102 can ensure high-voltage signal transmission of the outer lead 11, and the second silicone rubber insulating sleeve 1101 can play an insulating protection role.

Further, core wires 10 are stranded inside the core cable 9, an inner silicone rubber sheath 901 is wrapped on the outer surface of each core wire 10, each core wire 10 comprises an inner core conductor 1002, a first silicone rubber insulating sheath 1001 is wrapped on the outer surface of each core conductor 1002, and high-temperature-resistant rubber fillers are filled in the inner silicone rubber sheath 901 between the core wires 10;

specifically, the core conductor 1002 in the core wire 10 can transmit a high-voltage signal, the inner silicone rubber sheath 901 can ensure the insulation protection effect of the core wire 10, and the insulation effect of the core conductor 1002 can be further ensured by matching with the first silicone rubber insulation sleeve 1001.

Furthermore, the grounding conductors 12 are wrapped inside the second grounding drain wire 503 and the first grounding drain wire 303, and side contact surfaces 1201 electrically connected to the silver-plated copper wire braid 501 and the aluminum foil wrapping layer 301 respectively are arranged on two sides of the grounding conductor 12;

specifically, the ground conductor 12 may drain the current of the shielding layer to the ground, and the side contact surface 1201 may transmit the current generated on the silver-plated copper wire braid 501 and the aluminum foil wrapping layer 301.

The working principle is as follows: during the use, outer conductor 11 can cooperate core cable 9 to carry out the transmission of high-voltage signal, and another group can continue to undertake signal transmission work when outer conductor 11 and one of them group of damage of core cable 9, thereby guarantee shielded wire to signal transmission's stability, inner shield layer 5 and outer shielding layer 3 can play double-deck shielding's effect, not only can shield outwards, and can shield inwards, the safety of shielded wire transmission environment has been guaranteed, outer flame retardant coating 2 can play flame retardant protection's effect, outer silicone rubber sleeve 1 can further protect the outside of shielded wire, second ground connection drain wire 503 and first drain ground connection line 303 can discharge the electric current in inner shield layer 5 and the outer shielding layer 3 into the ground in the use, thereby guarantee the security of high-voltage shielded wire working process.

The details of the present invention are well known to those skilled in the art.

Finally, it is to be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified and replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. A silicon rubber high-voltage signal shielding wire comprises a core cable (9); the method is characterized in that: outer leads (11) are uniformly distributed on the outer surface of the core cable (9) along the circumference, an insulating foaming layer (8) is arranged on the outer surface of each outer lead (11), an inner shielding layer (5) and an outer shielding layer (3) are sequentially wrapped on the outer surface of each insulating foaming layer (8), an outer flame-retardant wrapping layer (2) is wrapped on the outer surface of each outer shielding layer (3), and an outer silicone rubber sleeve (1) is wrapped on the outer surface of each outer flame-retardant wrapping layer (2);

the inner shielding layer (5) comprises a silver-plated copper wire woven layer (501) and an inner polyethylene film wrapping layer (502), the outer shielding layer (3) comprises an aluminum foil wrapping layer (301) and an outer polyethylene film wrapping layer (302), and a second grounding drainage wire (503) and a first grounding drainage wire (303) are respectively arranged inside the silver-plated copper wire woven layer (501) and the aluminum foil wrapping layer (301).

2. The silicone rubber high-voltage signal shielding wire according to claim 1, characterized in that: an outer fireproof mica tape layer (4) is wrapped between the outer shielding layer (3) and the inner shielding layer (5), and an inner fireproof mica tape layer (6) is wrapped on the inner side surface of the inner shielding layer (5).

3. The silicone rubber high-voltage signal shielding wire according to claim 1 or 2, characterized in that: tensile braided layers (7) are woven on the outer surfaces of the insulating foaming layers (8), and high-temperature-resistant rubber fillers are filled in the insulating foaming layers (8) between the outer conducting wires (11).

4. The silicone rubber high-voltage signal shielding wire according to claim 1, characterized in that: the outer lead (11) comprises an inner outer conductor (1102), and the outer surface of the outer conductor (1102) is wrapped with a second silicon rubber insulating sleeve (1101).

5. The silicone rubber high-voltage signal shielding wire according to claim 1, characterized in that: the core wire cable is characterized in that a core wire (10) is stranded inside the core wire cable (9), and an inner silicon rubber sheath (901) is wrapped on the outer surface of the core wire (10).

6. The silicone rubber high-voltage signal shielding wire according to claim 1 or 5, characterized in that: the core wire (10) comprises an internal core conductor (1002), the outer surface of the core conductor (1002) is wrapped by a first silicon rubber insulating sleeve (1001), and high-temperature-resistant rubber fillers are filled in an inner silicon rubber sheath (901) between the core wires (10).

7. The silicone rubber high-voltage signal shielding wire according to claim 1, characterized in that: the second grounding drain wire (503) and the first grounding drain wire (303) are wrapped with grounding conductors (12), and two sides of each grounding conductor (12) are provided with side contact surfaces (1201) which are respectively electrically connected with the silver-plated copper wire braided layer (501) and the aluminum foil wrapping layer (301).