CN117393208A - High-performance superfine ultrasonic cable - Google Patents
High-performance superfine ultrasonic cable Download PDFInfo
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- CN117393208A CN117393208A CN202311521644.0A CN202311521644A CN117393208A CN 117393208 A CN117393208 A CN 117393208A CN 202311521644 A CN202311521644 A CN 202311521644A CN 117393208 A CN117393208 A CN 117393208A
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- layer
- ultrasonic cable
- metal shielding
- shielding layer
- fine ultrasonic
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- 238000000576 coating method Methods 0.000 claims abstract description 37
- 239000002184 metal Substances 0.000 claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 claims abstract description 31
- 239000004020 conductor Substances 0.000 claims abstract description 26
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims description 31
- 239000004642 Polyimide Substances 0.000 claims description 17
- 229920001721 polyimide Polymers 0.000 claims description 17
- 239000004962 Polyamide-imide Substances 0.000 claims description 14
- 229920002312 polyamide-imide Polymers 0.000 claims description 14
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 12
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 68
- 230000008054 signal transmission Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000002500 effect on skin Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000007675 cardiac surgery Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0216—Two layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/303—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups H01B3/38 or H01B3/302
- H01B3/305—Polyamides or polyesteramides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/303—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups H01B3/38 or H01B3/302
- H01B3/306—Polyimides or polyesterimides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
- H01B7/183—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of an outer sheath
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/30—Insulated conductors or cables characterised by their form with arrangements for reducing conductor losses when carrying alternating current, e.g. due to skin effect
Abstract
The application relates to a high-performance ultrafine ultrasonic cable, which relates to the field of communication engineering, and comprises a metal shielding layer, wherein the cross section of the metal shielding layer is circular; a plurality of center conductors provided in the metal shield layer; the metal shielding layer surrounds the plurality of insulating coatings around the preset central axis direction; the supporting layer is arranged at the central position in the metal shielding layer and used for limiting the positions of the plurality of central conductors; and the outer sheath layer is coated on the outer peripheral wall of the metal shielding layer. The present application has the effect of improving the problem that the size of the current cable does not meet the performance requirements of ICE devices.
Description
Technical Field
The application relates to the field of communication engineering, in particular to a high-performance ultrafine ultrasonic cable.
Background
At present, an ultrasonic cable is a cable for communication between devices, and aims to enable a control device to send a signal instruction to an execution device so as to control the execution device to send ultrasonic waves, and transmit an echo signal instruction received by a receiving device to a signal processing and displaying device so as to realize ultrasonic image transmission.
With respect to the related art described above, the inventors believe that with the recent rise of minimally invasive cardiac surgery, the market has been increasingly demanding high performance and small-sized signals for cables, and particularly the application of extremely fine signal wires in ICE (intracardiac ultrasound) devices has been attracting attention. The medical wire is generally applied to positions such as blood vessels, hearts and the like in a body, and not only needs to meet the signal transmission requirement to a certain extent, but also needs to be light in weight and small in size. The conventional method is to use the coaxial line as the signal line, but after the coaxial line is used as the signal line, the outer diameter of the whole cable is too large, and the weight is heavier, so that the performance requirement of the ICE equipment cannot be met.
Disclosure of Invention
In order to solve the problem that the current cable size does not meet the performance requirements of ICE equipment, the present application provides a high-performance ultra-fine ultrasonic cable.
The application provides a high-performance superfine ultrasonic cable which adopts the following technical scheme:
a high performance ultra-fine ultrasonic cable comprising:
the metal shielding layer is circular in cross section;
a plurality of center conductors provided in the metal shield layer;
the insulating coating is coated on the peripheral wall of the central conductor, one layer of insulating coating corresponds to one central conductor, and the metal shielding layer surrounds a plurality of insulating coatings around the preset central axis direction;
the supporting layer is arranged at the central position in the metal shielding layer and used for limiting the positions of the plurality of central conductors;
and the outer sheath layer is coated on the peripheral wall of the metal shielding layer and is a thin-wall coating. .
Preferably, one central conductor is coated with one insulating coating to form one core wire, the outer diameter of the core wire is 0.056-0.063 mm, and two core wires are adjacently arranged and mutually meshed to form a group of wire harnesses;
between two adjacent groups of the wire harnesses: the meshing intervals between the two core wires in each group of wire harnesses are different;
the supporting layer is arranged at the center position among the plurality of groups of wire harnesses and is attached to each group of wire harnesses.
Preferably, the total number of the core wires in the metal shielding layer is an even number.
Preferably, the insulating coating layer includes:
a polyimide layer coated on the outer peripheral wall of the center conductor;
a polyamide imide layer coated on the outer peripheral wall of the polyimide layer;
the polyimide layer and the polyamide imide layer are distributed at intervals and are of a single-coating structure.
Preferably, the thickness of the polyimide layer is 6 μm to 10 μm;
the thickness of the polyamide imide layer is 0.1-1 mu m.
Preferably, the central conductor is a silver-copper alloy wire with a single diameter of 0.039mm, concentricity of more than 98% and conductivity of more than 90%.
Preferably, the support layer is made of expanded PTFE material having a high strength porous structure.
Preferably, the metal shielding layer is composed of a plurality of silver-copper alloy wires, and the diameter of the silver-copper alloy wires is 0.03mm.
Preferably, the outer sheath layer is thin-wall coating PFA, and the thickness of the outer sheath layer is 0.025mm.
Preferably, the whole external diameter of the superfine ultrasonic cable is 0.35 mm-0.45 mm.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the insulating coating adopts a coating process and is uniformly wrapped, so that the thickness of the insulating coating is as thin as 10 mu m, and the electrical property and the wear resistance of the insulating coating are not affected; the outer sheath layer is made of thin-wall PFA, and the thickness is as low as 0.025mm; through the arrangement, the volume size of the whole cable is greatly reduced, the light and thin requirements of ICE equipment on the cable are met, the size limit of extrusion insulation on a conductor in the prior art is broken through, and the application of the enameled wire in the communication field is developed;
2. the silver-copper alloy has high tensile strength, high concentricity and good conductivity, the high tensile strength ensures that the cable has good bending resistance and tensile resistance, the high concentricity and the good conductivity ensure that the cable has a lower signal attenuation value and a better signal-to-noise ratio according to the skin effect of signal transmission, the error rate is effectively reduced, and the reliability of signal transmission is improved;
3. the insulating coating is of a double-layer structure formed by the polyimide layer and the polyamide imide layer, so that the double-layer protection function can be achieved, the insulating coating is guaranteed to have excellent insulativity and good wear resistance while being sterilized, the risk of short circuit caused by abrasion among core wires is effectively reduced, and the reliability of products is improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present application;
fig. 2 is a schematic structural view of a core wire according to an embodiment of the present application.
In the figure, 1, a central conductor; 2. an insulating coating; 21. a polyimide layer; 22. a polyamide imide layer; 3. a support layer; 4. a metal shielding layer; 5. and an outer sheath layer.
Detailed Description
The present application is described in further detail below with reference to fig. 1-2.
A high-performance ultra-fine ultrasonic cable, referring to fig. 1, comprises a central conductor 1, an insulating coating 2, a supporting layer 3, a metal shielding layer 4 and an outer sheath layer 5. The cross section of the metal shielding layer 4 is circular, and a plurality of central conductors 1 are arranged in the metal shielding layer 4; the outer wall of each central conductor 1 is coated with an insulating coating 2, namely a metal shielding layer 4 surrounds a plurality of insulating coatings 2 around a preset central axis direction; the supporting layer 3 is arranged at the central position in the metal shielding layer 4 and is used for limiting the positions of the plurality of central conductors 1; the outer sheath layer 5 is a thin-wall coating and is coated on the outer peripheral wall of the metal shielding layer 4.
As shown in fig. 1 and 2, a core wire is formed by coating an insulating coating 2 on the outer side of a central conductor 1, the outer diameter of the core wire is 0.056 mm-0.063 mm, and two core wires are adjacently arranged and mutually meshed to form a group of wire harnesses. Therefore, the total number of core wires in the metal shielding layer 4 is an even number. The mutual occlusion of the core wires in each pair of wire harnesses ensures that interference signals generated between two core wires in any pair of wire harnesses are mutually offset, thereby effectively preventing the mutual interference of signals in the wire pairs. And between two adjacent groups of wire harnesses: the engagement distance between the two core wires in each group of wire bundles is different. Because the crosstalk effect is generated between the two adjacent core wires due to mutual radiation of electromagnetic waves when signals are transmitted, and the meshing pitches between the two adjacent core wires are different, the mutual radiation between the two adjacent core wires is asynchronous, and the crosstalk effect between the two adjacent core wires is greatly reduced.
Referring to fig. 1 and 2, the central conductor 1 is a silver-copper alloy wire with a single diameter of 0.039mm, concentricity of more than 98% and conductivity of more than 90%; the silver-copper alloy has high tensile strength, high concentricity and good conductivity, the high tensile strength ensures that the cable has good bending resistance and tensile resistance, the high concentricity and the good conductivity ensure that the cable has lower signal attenuation value and better signal-to-noise ratio according to the skin effect of signal transmission, the error rate is effectively reduced, and the reliability of signal transmission is improved.
Referring to fig. 1 and 2, the insulating coating 2 includes a polyimide layer 21 and a polyamideimide layer 22, the polyimide layer 21 being coated on the outer peripheral wall of the center conductor 1, and the polyamideimide layer 22 being coated on the outer peripheral wall of the polyimide layer 21; the polyimide layer 21 and the polyamide-imide layer 22 are distributed at intervals and are of a single-coating structure, so that the thickness of the insulating layer can be reduced while the good insulating property is ensured, the sectional area of the cable is reduced, and the cable size can meet the performance requirement of ICE equipment. In this embodiment, the thickness of the polyimide layer 21 is 6 μm to 10. Mu.m, and the thickness of the polyamideimide layer 22 is 0.1 μm to 1. Mu.m. The polyimide layer 21 has better dielectric property and excellent insulativity, dielectric loss of 10 < -3 >, dielectric strength of 100-300KV/mm, excellent heat resistance, temperature resistance as high as 350 ℃ and better biocompatibility; while the polyamide imide layer 22 has good wear resistance and good thermal temperature resistance, the static friction coefficient is as low as 0.048, and the temperature resistance index is 200 ℃; the insulating coating 2 is of a double-layer structure formed by the polyimide layer 21 and the polyamide-imide layer 22, can play a role in double-layer protection, ensures that the insulating coating 2 has excellent insulativity and sterilization and good wear resistance, effectively reduces the risk of short circuit caused by abrasion among core wires, and improves the reliability of products.
Referring to fig. 1, the support layer 3 is provided at a central position between the plurality of groups of wire harnesses and is attached to each group of wire harnesses, and is also located at a center in the metal shielding layer 4. In this embodiment, the support layer 3 is made of expanded PTFE material having a high-strength porous structure. Therefore, the supporting layer 3 can effectively prevent the core wires in the wire harness from shifting and misplacing along with the bending of the cable, improves the engagement stability between adjacent core wires, indirectly optimizes the transmission of signals in the wire harness, and avoids the mutual interference of signals caused by the fact that the core wires in the wire harness are engaged and scattered.
As shown in fig. 1, the metal shielding layer 4 is composed of a plurality of silver-copper alloy wires, the cross section of the metal shielding layer 4 is circular, the diameter of the silver-copper alloy wires is 0.03mm, the silver-copper alloy has high tensile strength, high concentricity and good conductivity, and the shielding effectiveness of the metal shielding layer 4 coated on the insulating coating 2 is more than 70dB, so that the interference signals outside the cable can be effectively shielded; and further effectively ensures the transmission of signals and solves the problem of signal distortion when the traditional enameled wire is applied in the field of communication.
Referring to fig. 1, the outer sheath layer 5 is thin-walled coated PFA, and the thickness of the outer sheath layer 5 is 0.025mm. Thin-wall PFA is a special polymer material, has excellent high temperature resistance, chemical stability and electrical characteristics, ensures that the whole cable can withstand thousands of times of high-temperature and high-pressure sterilization, and ensures that the cable has better sterilization.
The implementation principle of the embodiment of the application is as follows: the insulating coating 2 adopts a coating process and is uniformly wrapped, so that the thickness of the insulating coating is as thin as 10 mu m, and the electric performance and the wear resistance of the insulating coating are not affected; the outer sheath layer 5 is made of thin-wall PFA, and the thickness is as low as 0.025mm; through the arrangement, the volume size of the whole cable is greatly reduced, the light and thin requirements of ICE equipment on the cable are met, the size limit of extrusion insulation on a conductor in the prior art is broken through, and the application of the enameled wire in the field of communication is developed.
The embodiments of this embodiment are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, in which like parts are denoted by like reference numerals. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (10)
1. A high performance ultra-fine ultrasonic cable comprising:
the metal shielding layer (4) is circular in cross section;
a plurality of center conductors (1) provided in the metal shield layer (4);
the insulating coating (2) is coated on the peripheral wall of the central conductor (1), one layer of the insulating coating (2) corresponds to one central conductor (1), and the metal shielding layer (4) surrounds a plurality of insulating coatings (2) around the direction of a preset central axis;
a support layer (3) arranged at a central position in the metal shielding layer (4) and used for limiting the positions of a plurality of central conductors (1);
the outer sheath layer (5) is coated on the outer peripheral wall of the metal shielding layer (4), and the outer sheath layer (5) is a thin-wall coating.
2. The high-performance ultra-fine ultrasonic cable according to claim 1, wherein one central conductor (1) is externally coated with an insulating coating (2) to form a core wire, the outer diameter of the core wire is 0.056 mm-0.063 mm, and two core wires are adjacently arranged and mutually meshed to form a group of wire harnesses;
between two adjacent groups of the wire harnesses: the meshing intervals between the two core wires in each group of wire harnesses are different;
the supporting layer (3) is arranged at the center position between the plurality of groups of wire harnesses and is attached to each group of wire harnesses.
3. The high-performance ultra-fine ultrasonic cable according to claim 2, characterized in that the total number of core wires in the metal shielding layer (4) is an even number.
4. A high performance ultra-fine ultrasonic cable according to claim 1, characterized in that said insulating coating (2) comprises:
a polyimide layer (21) that is coated on the outer peripheral wall of the center conductor (1);
a polyamide-imide layer (22) that is coated on the outer peripheral wall of the polyimide layer (21);
the polyimide layer (21) and the polyamide imide layer (22) are distributed at intervals and are of a single-coating structure.
5. The high performance ultra-fine ultrasonic cable according to claim 4, characterized in that the thickness of the polyimide layer (21) is 6-10 μm;
the thickness of the polyamide-imide layer (22) is 0.1-1 [ mu ] m.
6. A high performance ultra fine ultrasonic cable according to claim 1, characterized in that the central conductor (1) is a single silver-copper alloy wire with a diameter of 0.039mm, a concentricity of more than 98% and a conductivity of more than 90%.
7. A high performance ultra-fine ultrasonic cable according to claim 1, characterized in that the supporting layer (3) is made of expanded PTFE material of high strength porous structure.
8. The high-performance ultra-fine ultrasonic cable according to claim 1, characterized in that the metallic shielding layer (4) is composed of a plurality of silver-copper alloy wires, and the diameter of the silver-copper alloy wires is 0.03mm.
9. The high performance ultra-fine ultrasonic cable according to claim 1, characterized in that the outer sheath (5) is thin-walled coated PFA, the thickness of the outer sheath (5) being 0.025mm.
10. The high performance ultra-fine ultrasonic cable of claim 1, wherein the ultra-fine ultrasonic cable has an overall outer diameter of 0.35mm to 0.45mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311521644.0A CN117393208A (en) | 2023-11-14 | 2023-11-14 | High-performance superfine ultrasonic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311521644.0A CN117393208A (en) | 2023-11-14 | 2023-11-14 | High-performance superfine ultrasonic cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117393208A true CN117393208A (en) | 2024-01-12 |
Family
ID=89435736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311521644.0A Pending CN117393208A (en) | 2023-11-14 | 2023-11-14 | High-performance superfine ultrasonic cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117393208A (en) |
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2023
- 2023-11-14 CN CN202311521644.0A patent/CN117393208A/en active Pending
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