CN217361161U - Anti-electromagnetic pulse cable - Google Patents
Anti-electromagnetic pulse cable Download PDFInfo
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- CN217361161U CN217361161U CN202220201879.6U CN202220201879U CN217361161U CN 217361161 U CN217361161 U CN 217361161U CN 202220201879 U CN202220201879 U CN 202220201879U CN 217361161 U CN217361161 U CN 217361161U
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- cable
- electromagnetic pulse
- shielding layer
- core
- wire
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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Abstract
The utility model discloses an anti-electromagnetic pulse cable, include the cable core and wrap up in the outside anti-electromagnetic pulse shielding layer and the sheath of cable core in proper order, the cable core is formed by dividing the transposition of shielding sinle silk, anti-electromagnetic pulse shielding layer is by interior to outer including the compound area of plastic-aluminum around covering, tin-plated round copper line establishment shielding layer and soft-magnetic alloy silk weave the shielding layer, the utility model provides a cable adopts the compound area of plastic-aluminum + tin-plated copper wire to weave + high magnetic conductivity soft-magnetic alloy silk and weaves as anti-electromagnetic pulse shielding layer, makes the shielding efficiency index of cable be not less than 75dB, possesses anti strong electromagnetic interference function.
Description
Technical Field
The utility model relates to the technical field of cables, especially, relate to an anti-electromagnetic pulse cable.
Background
A cable is an electrical energy or signal transmission device, generally made of one or more mutually insulated conductors and an outer insulating sheath, which transmits electrical power or information from one place to another. At present, the following situations exist in common cables: (1) the common cable product adopts bare copper or tinned copper wire as a conductor, and the conductor is not high temperature resistant and is easy to oxidize. (2) The common cable product only has own special transmission performance and does not have the function of resisting strong electromagnetic interference.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems of the cable in the prior art that the cable is not high temperature resistant, easy to oxidize and does not have the function of strong electromagnetic interference resistance, and providing an anti-electromagnetic pulse cable.
In order to realize the purpose, the utility model adopts the following technical scheme:
the utility model provides an anti-electromagnetic pulse cable, includes the cable core and wraps up in proper order in cable core outside anti-electromagnetic pulse shielding layer and sheath.
Specifically, the cable core is formed by stranding the branch shielding wire cores. Preferably, the cable core is formed by twisting three separated shielding wire cores into a cable, the twisting direction is the right direction, and the twisting pitch is not more than 16 times of the twisting outer diameter. The split shielding wire core comprises a pair-twisted wire core and a split shielding layer, wherein the pair-twisted wire core is located in the middle, the split shielding layer wraps the outside of the pair-twisted wire core, the pair-twisted wire core is formed by twisting insulating wire cores into a cable in a pair mode, and the insulating wire core is formed by combining a conductor located in the middle and an insulating layer wrapping the outside of the conductor.
Preferably, the conductor is formed by twisting 19/0.18mm silver-plated copper wires.
Preferably, the insulating layer is made of fluorinated ethylene propylene.
Preferably, the partial shielding layer is formed by weaving tinned round copper wires, and the weaving density is not less than 80%.
Furthermore, the electromagnetic pulse resistant shielding layer comprises an aluminum-plastic composite tape wrapping layer, a tinned round copper wire woven shielding layer and a soft magnetic alloy wire woven shielding layer from inside to outside.
Preferably, the material of the sheath is polyfluorinated ethylene propylene.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the cable adopts an aluminum-plastic composite belt, tinned copper wire weaving and high-permeability soft magnetic alloy wire weaving as an anti-electromagnetic pulse shielding layer, so that the shielding effectiveness index of the cable is not lower than 75dB, and the cable has a strong electromagnetic interference resistance function.
2. The cable adopts a silver-plated copper conductor, and the conductor can work at the temperature of 200 ℃ for a long time, is not easy to oxidize and can resist high temperature.
Drawings
Fig. 1 is a schematic structural diagram of the electromagnetic pulse resisting cable.
In the figure: 1. shielding the wire cores; 2. an electromagnetic pulse resistant shielding layer; 3. a sheath; 11. an insulated wire core; 12. dividing a shielding layer; 111. a conductor; 112. an insulating layer; 21. an aluminum-plastic composite tape wrapping layer; 22. weaving a shielding layer by using a tinned round copper wire; 23. and the soft magnetic alloy wires are used for weaving the shielding layer.
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.
Referring to fig. 1, the electromagnetic pulse resistant cable comprises a cable core, and an electromagnetic pulse resistant shielding layer 2 and a sheath 3 which are sequentially wrapped outside the cable core.
Specifically, the cable core is formed by twisting the branch shielding wire cores 1. The cable core is formed by twisting three sub-shielding cable cores 1 into a cable, the twisting direction is the right direction, and the twisting pitch is not more than 16 times of the twisting outer diameter. The split shielding wire core 1 comprises a twisted pair wire core and a split shielding layer 12, wherein the twisted pair wire core is located in the middle of the split shielding wire core, the split shielding layer 12 wraps the outer portion of the twisted pair wire core, the twisted pair wire core is formed by twisting an insulating wire core 11 in a pair mode, and the insulating wire core 11 is formed by combining a conductor 111 located in the middle of the split shielding wire core and an insulating layer 112 wrapping the outer portion of the conductor 111.
In this embodiment, the conductor 111 is formed by twisting 19/0.18mm silver-plated copper wires. And extruding a layer of fluorinated ethylene propylene outside the conductor 111 to form an insulating layer 112, wherein the nominal thickness of the insulation is 0.35mm, and thus the insulated wire core 11 is obtained. Two insulated wire cores 11 carry out the pair twist, and the twist is to the left, and the transposition pitch is no longer than 10 times of transposition external diameter, obtains the pair twist sinle silk, and the pair twist sinle silk adopts the tinned wire round wire that nominal diameter is 0.10mm to weave outward and forms branch shielding layer 12, and its weaving density is not less than 80% to obtain branch shielding sinle silk 1.
Further, the three sub-shielding wire cores 1 are stranded into a cable to obtain a cable core, the stranding direction is the right direction, and the stranding pitch is not more than 16 times of the stranding outer diameter. And a layer of aluminum-plastic composite tape with the nominal thickness of 0.03-0.05mm is wrapped outside the cable core, the wrapping direction is the left direction, the wrapping overlapping rate is not less than 20%, and an aluminum-plastic composite tape wrapping layer 21 is formed. And adopting a tinned round copper wire with the nominal diameter of 0.12mm to weave and shield outside the aluminum-plastic composite tape wrapping layer 21, wherein the weaving density is not less than 80%, and forming a tinned round copper wire weaving and shielding layer 22. And adopting a high-permeability soft magnetic alloy wire with the nominal diameter of 0.12mm to weave the shielding layer 22 outside the tinned round copper wire, wherein the weaving density is not less than 85 percent, and forming a soft magnetic alloy wire weaving shielding layer 23. And finally, extruding a layer of fluorinated ethylene propylene outside the soft magnetic alloy wire braided shielding layer 23 to form a sheath 3, wherein the extrusion nominal thickness is 0.60mm, and the maximum outer diameter after extrusion is 11.70 mm.
The cable in the embodiment adopts an aluminum-plastic composite belt, a tinned copper wire woven and a high-permeability soft magnetic alloy wire woven as an anti-electromagnetic pulse shielding layer, so that the shielding effectiveness index of the cable is not lower than 75dB, and the cable has a strong electromagnetic interference resistance function; and silver-plated copper wires are adopted as conductors, so that the conductors can work at the temperature of 200 ℃ for a long time and are not easy to oxidize, and the high-temperature resistance is good.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The electromagnetic pulse resisting cable is characterized by comprising a cable core, an electromagnetic pulse resisting shielding layer (2) and a sheath (3) which are sequentially wrapped outside the cable core, wherein the cable core is formed by twisting branch shielding wire cores (1);
the anti-electromagnetic pulse shielding layer (2) comprises an aluminum-plastic composite tape wrapping layer (21), a tinned round copper wire woven shielding layer (22) and a soft magnetic alloy wire woven shielding layer (23) from inside to outside.
2. The electromagnetic pulse resistant cable according to claim 1, wherein the partial shielding wire core (1) comprises a twisted pair wire core and a partial shielding layer (12), the twisted pair wire core is formed by twisting an insulating wire core (11) in pair to form a cable, and the insulating wire core (11) is formed by combining a conductor (111) and an insulating layer (112).
3. The electromagnetic pulse resistance cable of claim 2, wherein the conductor (111) is formed by stranding 19/0.18mm silver-plated copper wires.
4. The electromagnetic pulse resistance cable of claim 2, wherein the insulating layer (112) and the sheath (3) are made of fluorinated ethylene propylene.
5. The electromagnetic pulse resistance cable of claim 2, wherein the partial shield (12) is woven from tin-plated round copper wire.
6. The electromagnetic pulse resistant cable according to claim 2, wherein the cable core is formed by twisting three separate shielding wire cores (1) in a right direction, and the twisting pitch is not more than 16 times of the twisting outer diameter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202220201879.6U CN217361161U (en) | 2022-01-25 | 2022-01-25 | Anti-electromagnetic pulse cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202220201879.6U CN217361161U (en) | 2022-01-25 | 2022-01-25 | Anti-electromagnetic pulse cable |
Publications (1)
Publication Number | Publication Date |
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CN217361161U true CN217361161U (en) | 2022-09-02 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202220201879.6U Active CN217361161U (en) | 2022-01-25 | 2022-01-25 | Anti-electromagnetic pulse cable |
Country Status (1)
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CN (1) | CN217361161U (en) |
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2022
- 2022-01-25 CN CN202220201879.6U patent/CN217361161U/en active Active
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