CN212161369U

CN212161369U - Rubber cable for underwater acoustic transducer

Info

Publication number: CN212161369U
Application number: CN202021296082.6U
Authority: CN
Inventors: 肖强; 张羽; 龚震宇
Original assignee: Shentong Optoelectronics Shanghai Co ltd
Current assignee: Shentong Optoelectronics Shanghai Co ltd
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2020-12-15
Anticipated expiration: 2030-07-04

Abstract

The utility model provides a rubber cable for underwater acoustic transducer, it includes the cable body, and the cable body includes: the inner wire group is provided with a plurality of conductors and a filling body filled with a non-hygroscopic rubber strip, the conductors are formed by spirally winding tinned copper wires around an aramid fiber lining core, and insulators are arranged outside the conductors; the isolation layer, the shielding layer, the inner sheath and the outer sheath are sequentially arranged outside the wire set. The cable solves the problem that the rubber cable for the underwater sound transducer frequently suffers core breakage caused by bending when in use, the conductor adopts aramid fiber as a winding conductor of the lining core, the flexibility of the cable is improved, the bending resistance and the fatigue resistance of the cable are greatly enhanced, and meanwhile, the aramid fiber is considered to keep the shape of the whole strand after being cut off during wiring, and tin soldering is not influenced. By adopting the inner sheath and outer sheath double-layer co-extrusion technology, the integral strength of the sheath layer is improved, the transverse watertight requirement of the cable is ensured, and the vulcanization sealing in the subsequent assembly process is facilitated.

Description

Rubber cable for underwater acoustic transducer

Technical Field

The utility model relates to the technical field of cables, especially, relate to a rubber cable for underwater acoustic transducer.

Background

The cable for the existing underwater sound transducer is frequently bent when in use, has poor use environment conditions, needs to be subjected to multiple tests, transportation, transition and the like before the equipment and the cable assembly are formally used, and is easy to cause core breakage. The common cable is made of polyolefin cross-linked materials, but has poor compatibility with a vulcanized sealing element in the subsequent assembly process, and is easy to crack, so that the sealing failure is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rubber cable for underwater acoustic transducer, it ensures that the cable is at the continuous core of frequent bending down, keeps excellent electrical property and sealing performance.

The utility model provides a rubber cable for underwater acoustic transducer, it includes the cable body, and the cable body includes: the inner wire group is provided with a plurality of conductors and a filling body filled with a non-hygroscopic rubber strip, the conductors are formed by spirally winding tinned copper wires around an aramid fiber lining core, and insulators are arranged outside the conductors; an isolation layer (5) disposed outside the wire group; the shielding layer is arranged outside the isolation layer; the inner sheath is arranged outside the shielding layer; and the outer sheath is arranged outside the inner sheath.

Further, the insulator is high-strength ethylene propylene rubber.

Furthermore, the isolation layer is formed by wrapping non-hygroscopic polyester films.

Furthermore, the shielding layer is formed by weaving tinned copper wires, and the weaving density is not less than 90%.

Further, the inner sheath adopts high strength ethylene propylene rubber.

Further, the outer sheath is made of chlorosulfonated polyethylene rubber.

Furthermore, the aramid fiber lining core adopts 1500D multistrand aramid fiber.

Furthermore, the elongation at break of the tinned copper wire adopted by the conductor is not less than 30%.

Furthermore, the pitch diameter ratio of the cabling of the cable body is controlled to be less than 10 times.

Furthermore, the non-metal materials of the cable body are non-hygroscopic materials.

Further, the filling body is a non-hygroscopic rubber strip, an inner core extending along the length direction of the non-hygroscopic rubber strip is arranged at the central position of the non-hygroscopic rubber strip, the inner core comprises but not limited to a high-strength resin material, and carbon fiber yarns can be selected as the inner core under the condition that the conditions allow.

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

1. the cable does not break the core under frequent bending, and maintains excellent electrical performance. And passed a single 30000 winding test.

2. The aramid fiber keeps the shape of the whole strand after being cut off, and the tin soldering is not influenced. Even under the high temperature state, aramid fiber is high temperature resistant, can not decompose into powder and influence the soldering.

3. The whole cable is made of non-hygroscopic materials, and insulation resistance of the whole set of device is prevented from being reduced due to water vapor.

4. The cable shielding density reaches more than 90%, and the cable has excellent anti-interference performance.

5. The rubber sheath has better compatibility during vulcanization sealing in subsequent assembly, and sealing failure is avoided.

Drawings

Fig. 1 is a schematic structural view of a rubber cable for an underwater acoustic transducer according to a first embodiment of the present invention.

Detailed Description

The present invention will now be described in more detail with reference to the drawings, in which preferred embodiments of the invention are shown, it being understood that one skilled in the art could modify the invention herein described while still achieving the beneficial effects of the invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.

The utility model discloses a first embodiment provides a rubber cable for underwater acoustic transducer, it includes cable body 9, refer to fig. 1, cable body 9 includes inside line group, inside line group has two conductors 2 and adopts the obturator 4 that non-hygroscopicity rubber banding filled, conductor 2 adopts the winding of tinned copper wire on 1500D aramid fiber lining core (aramid fiber center lining core) 1, below the pitch control 10mm to it forms to divide into two-layer syntropy disposable winding, very big improvement the compliance of cable with buckling resistance, fatigue resistance. The insulator 3 is arranged outside the conductor, the high-strength ethylene propylene rubber insulation is extruded outside the conductor, the insulator 3 is made of ethylene propylene rubber materials with high strength and high electrical performance, the overall strength and compactness of the insulation resistance and the insulation wire core are improved, the isolation layer 5 arranged outside the wire group is formed by wrapping non-hygroscopic polyester films, and it needs to be pointed out that the non-hygroscopic materials such as the insulation, the sheath, the filling and the wrapping of the cable body 9 are all made of non-hygroscopic materials, so that the reduction of the insulation resistance of the whole set of device caused by water vapor is avoided. Conductors 2 arranged adjacently are arranged in the isolation layer 5, and the filling bodies 4 are distributed on the left side and the right side of the two conductors.

Continuing to refer to fig. 1, the cable body further comprises a shielding layer 6 arranged outside the isolation layer, the shielding layer is formed by weaving tinned copper wires, and the weaving density is not less than 90%, so that the cable body has excellent anti-interference performance. The inner sheath 7 arranged outside the shielding layer is made of high-strength ethylene propylene rubber material, the outer sheath 8 is arranged outside the inner sheath, the outer sheath is made of chlorosulfonated polyethylene rubber material, and an inner and outer sheath double-layer co-extrusion technology is adopted. The rubber sheath has better compatibility when the rubber sheath is vulcanized and sealed during subsequent assembly. And simultaneously ensure the transverse watertight requirement of the cable.

In the present embodiment, the conductor 2 is made of a tin-plated copper wire having an elongation at break of not less than 30%, for example, 35%. The ratio of the pitch diameter of the cable body 9 is controlled to be less than 10 times, for example, 9 times.

The novel rubber cable for the underwater sound transducer shows excellent performance after 30000 single-pass winding tests.

The development of this product has solved the rubber cable for the underwater acoustic transducer and has frequently received the disconnected core problem that buckles and cause when using, and the conductor adopts aramid fiber as the winding conductor of bushing, has improved the compliance of cable, very big reinforcing cable bending resistance and fatigue resistance, considers simultaneously when the wiring, and aramid fiber cuts the back and keeps whole strand shape, does not influence the soldering. The inner sheath is made of ethylene propylene rubber material, the outer sheath is made of chlorosulfonated polyethylene rubber material, and an inner sheath and outer sheath double-layer co-extrusion technology is adopted, so that the overall strength of the sheath layer is improved, the transverse watertight requirement of the cable is ensured, and the vulcanization sealing in the subsequent assembly process is facilitated.

The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims

1. Rubber cable for underwater acoustic transducer, it includes the cable body, its characterized in that, the cable body includes:

the inner wire group is provided with a plurality of conductors and a filling body filled with a non-hygroscopic rubber strip, the conductors are formed by spirally winding tinned copper wires around an aramid fiber lining core, and insulators are arranged outside the conductors;

an isolation layer disposed outside the wire set;

the shielding layer is arranged outside the isolation layer;

the inner sheath is arranged outside the shielding layer;

and the outer sheath is arranged outside the inner sheath.

2. The rubber cable for an underwater acoustic transducer as claimed in claim 1, wherein said insulator is a high strength ethylene propylene rubber.

3. The rubber cable for an underwater acoustic transducer as claimed in claim 1, wherein said insulating layer is wrapped with a non-hygroscopic polyester film.

4. The rubber cable for the underwater acoustic transducer as claimed in claim 1, wherein the shielding layer is braided with tin-plated copper wires, and the braiding density is not less than 90%.

5. The rubber cable for the underwater acoustic transducer as claimed in claim 1, wherein the inner sheath is made of high-strength ethylene propylene rubber.

6. The rubber cable for an underwater acoustic transducer as claimed in claim 1, wherein said outer sheath is made of chlorosulfonated polyethylene rubber.

7. The rubber cable for the underwater acoustic transducer as claimed in claim 1, wherein the aramid core is a 1500D multi-strand aramid.

8. The rubber cable for an underwater acoustic transducer as claimed in claim 1, wherein said conductor is made of tin-plated copper wire having an elongation at break of not less than 30%.

9. The rubber cable for the underwater acoustic transducer as claimed in claim 1, wherein the ratio of the pitch diameter of the cable body is controlled to be 10 times or less.

10. The rubber cable for the underwater acoustic transducer as claimed in claim 1, wherein the non-metallic material of the cable body is a non-hygroscopic material.