CN218497850U

CN218497850U - 6.8MPa longitudinal watertight coaxial high-fidelity cable applied to tiny signals

Info

Publication number: CN218497850U
Application number: CN202221915864.2U
Authority: CN
Inventors: 靳志杰; 刘欢; 刘述权; 张亚闪; 吕英
Original assignee: Kunshan Spectrum Electronic Technology Co ltd
Current assignee: Kunshan Spectrum Electronic Technology Co ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2023-02-17
Anticipated expiration: 2032-07-22

Abstract

The utility model relates to a be applied to vertical watertight coaxial high-fidelity cable of 6.8MPa of small signal, including the wire assembly, the wire assembly distributes outward and has the insulating layer, and the insulating layer is provided with the shielding layer outward, and the shielding layer is provided with outward around the covering outward, and the interior sheath that is provided with outward around the covering outward is provided with the armor, and the armor is provided with outward around the covering outward, is provided with the outer jacket outward around the covering outward. Therefore, the whole structure is stable, and the self mechanical noise value is extremely low and is not more than 5mV. The waterproof colloid is arranged, so that the overall outer diameter and flexibility of the cable are not affected. The independent armor layer is arranged, so that the anti-extrusion capacity of the cable can be enhanced, the electric performance of the cable can be effectively protected when the cable passes through a watertight cabin, and meanwhile, the reliability of the cable is improved.

Description

6.8MPa longitudinal watertight coaxial high-fidelity cable applied to tiny signals

Technical Field

The utility model relates to a coaxial high-fidelity cable especially relates to a be applied to the coaxial high-fidelity cable of vertical watertight of 6.8MPa of small signal.

Background

Ocean exploration is a rapidly developing field, the requirements on signal acquisition and precision are higher and higher, and the requirements on water resistance and reliability are also very high due to long-term immersion in seawater. The existing hydrophone cable is not designed with high fidelity and low noise, the noise value of the cable per se usually exceeds 15mV, and the transmitted signal is usually about 100mV, so that the interference on the signal is very large, and the interference problem of the cable per se is increasingly prominent along with higher and higher detection precision. Meanwhile, the whole equipment is often damaged because the cable is soaked in seawater for a long time and seawater flows to the electronic cabin along the inside of the cable under the condition that the cable is bitten by marine animals or the sheath is cracked.

In view of the above defects, the designer actively makes research and innovation to create a 6.8MPa longitudinal watertight coaxial high-fidelity cable applied to tiny signals, so that the cable has industrial utilization value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a be applied to the vertical watertight coaxial hi-fi cable of 6.8MPa of small signal.

The utility model discloses a be applied to vertical watertight coaxial high-fidelity cable of 6.8MPa of small signal, including the wire assembly, wherein: the wire assembly is distributed with the insulating layer outward, the insulating layer is provided with the shielding layer outward, the shielding layer is provided with around the covering outward, be provided with interior sheath outward around the covering in, interior sheath is provided with the armor outward, the armor is provided with outward around the covering outward, outward around the covering outward be provided with the outer jacket.

Further, the 6.8MPa longitudinal watertight coaxial high-fidelity cable applied to the small signals is characterized in that the lead assembly is a wire body formed by twisting a plurality of copper wires, the outer diameter of the wire body is not more than 5mm, and the wire diameter of each copper wire is 0.1mm to 0.5mm.

Furthermore, the 6.8MPa longitudinal watertight coaxial high-fidelity cable applied to the micro signals is characterized in that the copper wire is a silver-plated copper wire; or the copper wire is a tinned copper wire; or the copper wire is an annealed bare copper wire.

Furthermore, the 6.8MPa longitudinal watertight coaxial high-fidelity cable applied to the tiny signals is characterized in that the copper wires are twisted by less than 19 strands, and semiconductive resistor hydrocolloid is distributed among the copper wires; the twisted monofilament is larger than 19 strands, and an auxiliary wrapping layer is arranged outside the wire.

Further, the 6.8MPa longitudinal watertight coaxial high-fidelity cable applied to the tiny signals is characterized in that the insulating layer is a crosslinked polyethylene layer.

Furthermore, the 6.8MPa longitudinal watertight coaxial high-fidelity cable applied to the micro signals is characterized in that the shielding layer is a copper wire braided layer, the wire diameter of the copper wire is 0.1mm to 0.3mm, the braiding density is greater than or equal to 80%, and the copper wire braided layer is coated with the semi-conductive resistance water gel.

Furthermore, the 6.8MPa longitudinal watertight coaxial high-fidelity cable applied to the tiny signals is characterized in that the inner wrapping layer and the outer wrapping layer are formed by wrapping with semi-conductive tapes.

Further, the 6.8MPa longitudinal watertight coaxial high-fidelity cable applied to the micro signal is characterized in that the inner protection layer is a high-strength polyurethane layer; or the inner sheath layer is a polyethylene layer.

Furthermore, the 6.8MPa longitudinal watertight coaxial high-fidelity cable applied to the tiny signals is characterized in that the armor layer is a stainless steel wire woven layer, the wire diameter of the stainless steel wire is 0.1mm to 0.3mm, the weaving density is greater than or equal to 65%, and the stainless steel wire woven layer is coated with the semi-conductive resistance water gel.

Still further, the 6.8MPa longitudinal watertight coaxial high-fidelity cable applied to the micro signals is characterized in that the outer protective layer is a high-strength polyurethane layer.

Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:

1. the whole structure is stable, and the self mechanical noise value is extremely low and is not more than 5mV.

2. The waterproof colloid is arranged, so that the overall outer diameter and flexibility of the cable are not influenced.

3. The independent armor layer is arranged, so that the anti-extrusion capacity of the cable can be enhanced, the electrical performance of the cable can be effectively protected when the cable passes through a watertight cabin, and meanwhile, the reliability of the cable is improved.

4. During use, the test of 6.8MPa longitudinal water pressure can be met, and no water enters the electronic cabin along the inside of the cable after the cable is broken under water of 680 m, so that the reliability of the whole system is protected.

5. The characteristic impedance of the whole cable is 50 omega, the cable can be matched with a standard coaxial connector, and the universality is good.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a cable with less than 19 strands of copper wires.

Fig. 2 is a schematic structural diagram of a cable with copper wire stranding more than 19 strands.

The meanings of the reference symbols in the figures are as follows.

1. Conductor assembly 2 insulation layer

3. Wrapping layer in shielding layer 4

5. Inner sheath 6 armor layer

7. Outer wrapping 8 outer protective layer

9. Auxiliary wrapping layer

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The 6.8MPa longitudinal watertight coaxial hi-fi cable applied to tiny signals as in fig. 1 to 2 comprises a wire assembly 1, which is distinctive in that: an insulating layer 2 is distributed outside the conductor assembly 1. Particularly, the utility model discloses by interior and outer structural style does, and insulating layer 2 is provided with shielding layer 3 outward, and shielding layer 3 is provided with outward and is provided with interior covering 4 outward, and interior covering 5 is provided with outward around covering 4 outward. Meanwhile, an armor layer 6 is arranged outside the inner protective layer 5, and an outer wrapping layer 7 is arranged outside the armor layer 6. In addition, in order to realize effective anti-friction and anti-scratch protection, an outer protective layer 8 is arranged outside the outer wrapping layer 7.

Combine the utility model discloses an embodiment of preferred sees, the wire rod body that wire component 1 adopted a plurality of copper wires transposition to constitute, and the external diameter of the wire rod body is not more than 5mm, and the line footpath of copper wire is 0.1mm to 0.5mm. Considering the stability of conduction, the copper wire is the silver-plated copper wire and then is regarded as a tinned copper wire. Of course, an annealed bare copper wire is also possible. In combination with actual manufacturing, if the twisting of the copper wires is less than 19 strands, semiconductive water-blocking colloid is distributed among the copper wires, and the copper wires are dried by a heating furnace. Meanwhile, a plurality of strands of fine copper wire strands can be formed by twisting a plurality of strands of copper wires respectively, as shown in fig. 1. If the twisted monofilaments are larger than 19 strands, an auxiliary wrapping 9 may be provided outside the wire body, as shown in fig. 2. During the implementation, the water-blocking colloid can be modified and mixed with 5 to 20 percent of nano-scale carbon powder.

Further, in order to have a better insulation effect, the insulation layer 2 is a crosslinked polyethylene layer. Meanwhile, in order to avoid signal interference, the adopted shielding layer 3 is a copper wire braid layer, the wire diameter of the copper wire is 0.1mm to 0.3mm, the weaving density is greater than or equal to 80%, and the copper wire braid layer is coated with semi-conductive resistance glue.

In practical application, the inner wrapping layer 4 and the outer wrapping layer 7 are formed by wrapping a semi-conductive tape. Therefore, the internal water-blocking colloid is convenient to fix, and the performance of the semi-conductive homogenized electric field is improved. And simultaneously, the utility model discloses an interior sheath 5 be the high strength polyurethane layer. Therefore, the high-strength polyurethane is soft and is convenient for vulcanization connection when the inner wire core is used as a connector. Or, the inner sheath layer 5 is formed by a polyethylene layer, and the polyethylene inner sheath layer 5 is hard, so that more excellent extrusion resistance and seawater resistance can be provided.

Still further, the armor layer 6 is a stainless steel wire braid layer, the wire diameter of the stainless steel wire is 0.1mm to 0.3mm, the weaving density is greater than or equal to 65%, and the stainless steel wire braid layer is coated with the semi-conductive resistance water gel. Meanwhile, the outer protective layer 8 is a high-strength polyurethane layer.

Through foretell expression of characters and combination of the attached drawing can be seen, adopt the utility model discloses afterwards, possess following advantage:

2. The waterproof colloid is arranged, so that the overall outer diameter and flexibility of the cable are not affected.

5. The characteristic impedance of the whole cable is 50 omega, and the cable can be matched with a standard coaxial connector and has good universality.

Furthermore, the indication directions or positional relationships described in the present invention are directions or positional relationships based on the drawings, and are only for convenience of description and simplification of the description, but the indication or suggestion that the indicated device or structure must have a specific direction or operate in a specific direction structure is not understood as a limitation of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "disposed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be connected through any combination of two or more components or their mutual relationships. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art. And it may be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. Be applied to vertical watertight coaxial hi-fi cable of 6.8MPa of small signal, including the wire assembly, its characterized in that: the wire assembly is distributed with the insulating layer outward, the insulating layer is provided with the shielding layer outward, the shielding layer is provided with around the covering outward, be provided with interior sheath outward around the covering in, interior sheath is provided with the armor outward, the armor is provided with outward around the covering outward, outward around the covering outward be provided with the outer jacket.

2. The 6.8MPa longitudinal watertight coaxial hi-fi cable applied to tiny signals according to claim 1, characterized in that: the wire assembly is a wire body formed by twisting a plurality of copper wires, the outer diameter of the wire body is not more than 5mm, and the wire diameter of each copper wire is 0.1mm to 0.5mm.

3. The 6.8MPa longitudinal watertight coaxial hi-fi cable applied to tiny signals according to claim 2, characterized in that: the copper wire is a silver-plated copper wire, a tinned copper wire or an annealed bare copper wire.

4. The 6.8MPa longitudinal watertight coaxial hi-fi cable applied to tiny signals according to claim 2, characterized in that: the stranding of the copper wires is less than 19 strands, and semiconductive resistance hydrocolloids are distributed among the copper wires; the twisted monofilament is larger than 19 strands, and an auxiliary wrapping layer is arranged outside the wire.

5. The 6.8MPa longitudinal watertight coaxial hi-fi cable applied to tiny signals according to claim 1, characterized in that: the insulating layer is a crosslinked polyethylene layer.

6. The 6.8MPa longitudinal watertight coaxial hi-fi cable applied to tiny signals according to claim 1, characterized in that: the shielding layer is a copper wire braided layer, the wire diameter of the copper wire is 0.1 mm-0.3 mm, the braiding density is greater than or equal to 80%, and the copper wire braided layer is coated with semi-conductive resistance water gel.

7. The 6.8MPa longitudinal watertight coaxial hi-fi cable applied to tiny signals according to claim 1, characterized in that: the inner wrapping layer and the outer wrapping layer are formed by wrapping semi-conducting belts.

8. The 6.8MPa longitudinal watertight coaxial hi-fi cable applied to tiny signals according to claim 1, characterized in that: the inner sheath layer is a high-strength polyurethane layer or a polyethylene layer.

9. The 6.8MPa longitudinal watertight coaxial hi-fi cable applied to tiny signals according to claim 1, characterized in that: the armor layer is a stainless steel wire woven layer, the wire diameter of the stainless steel wire is 0.1mm to 0.3mm, the weaving density is greater than or equal to 65%, and the stainless steel wire woven layer is coated with semi-conductive resistance glue.

10. The 6.8MPa longitudinal watertight coaxial hi-fi cable applied to tiny signals according to claim 1, characterized in that: the outer protective layer is a high-strength polyurethane layer.