RU35467U1 - Sealed multi-core cable connector - Google Patents

Description

SEALED CONNECTOR OF MULTI-CABLE CABLES.

The utility model relates to electrical engineering, namely to hermetic connectors of multicore cables, which operate for a long time in marine conditions at high hydrostatic pressures.

Nowadays, MULTI-CONNECTED cables connectors in a monolithic rubber casing are widely used because of their resistance to exposure to: high hydrostatic pressures in deep-sea conditions, affessive liquid and gaseous media, mechanical fuses, shocks and vibrations (see, for example, 1, 2).

By the totality of features, the closest to the proposed utility model is a hardened sealed connector of multicore cables, described in 2 drawing 17 p. 38.

The prototype connector contains isolated from each other nodes of pairwise connection of conductive conductors freed from insulation, and soldered pairwise connection of screens of connected conductors. The connection nodes of the conductive conductors are located in an insulating rubber massif manufactured by vulcanization (“primary vulcanization”). screens are connected by soldering. The connection nodes of the screens are placed in a mask-resistant rubber massif manufactured by vulcanization (“secondary vulcanization”).

The disadvantages of such designs of connectors include the high complexity of MANUFACTURE, because several “primary and” secondary vulcanizations are required, and each vulcanization takes

by time about 1 hour); the high cost of manufacturing, because It is necessary to make two expensive molds and a portable vulcanizer. In addition, it is necessary to provide a technological supply of cables and space for the placement of molds and a vulcanizer, which is problematic in conditions of unauthorized access at the facility where the cables are usually connected.

The technical result of the utility model is to reduce the time spent on the manufacture of the connector (about 10 times), reduce the cost of manufacturing the connector, as well as the ability to work in the open space without the use of molds and vulcanizers.

To achieve the technical result, in an airtight connector of two multicore cables with sheaths in the form of hoses with conductive conductors in insulation, placed in a screen of wire, containing soldered knots of pairwise connected conductive conductors freed from insulation, located in the rubber array, I speak for the limits of the hoses and the brazed pair-wise connection of the shields of the connected cores, new liznaks were introduced, namely: two rubber bushings 1a1, a polymer seal and two thin-walled metal thallic pipes made of plastic metal with a length of at least two diameters of the connected hoses, the rubber array is made of unvulcanized insulating rubber mass, while the rubber bushings are mounted on the ends of the connected cables, have an inner diameter equal to the outer diameter of the hose and are at least a distance from its end 0.5 of the diameter of the hose, the insulating rubber array has an outer diameter equal to the outer diameter of the rubber bushings and is in contact with their ends at the ends.

thin-walled metal tubes are worn over the rubber bushings and the rubber massif through a polymer seal and pressed along the entire length with the formation of annular grooves of a trapezoidal section.

Achievements} | earlier of the claimed technical result is explained by the fact that the vulcanization “primary and“ secondary are replaced by crimping, which is not inferior in reliability, much more technologically advanced and cheaper, does not require bulky equipment, which allows connecting the cables of the declared connector with a valid connection point at the site.

The essence of the utility model is illustrated in the figure, where the design of a sealed connector of multicore cables is shown matically. The connector contains cables with sheaths in the form of hoses 1, rubber bushings 2, a polymer seal 3, a rubber mass 4 of unvulcanized insulating rubber in the form of tapes no more than 1 mm thick, thin-walled metal tubes 5 connected by} U1Ly cable 6, connected by cable bundles 7.

The claimed connector is made as follows. First, conductive conductors in insulation are freed from the hose sheath, unwind the screen from wires, then remove insulation from conductive conductors 6 and unwind them, and wires of conductive conductors and shields are washed from the sealant and cleaned. After that, the initial winding of conductive) 101 L is restored and the bundles of ethane wire 7 are twisted. Next, a polymer seal 3 is pulled onto one end of the connected cables 1, on which thin-walled metal tubes 5 are put on, not the length of two diameters of the connected cables. At the ends of the connected cables 1, install rubber bushings 2, which have an inner diameter equal to the outer diameter of the hose and are separated from its end by a length of at least 0.5 hose diameters. Conducting conductors 6 without a shield are connected with a lapar like, the connection points are isolated with tapes of unvulcanized insulating rubber 8. After that, the harnesses of the screens 7 are connected with a lolar like. A rubber array 4 of unvulcanized insulating rubber in the form of tapes with a thickness of not more than 1 mm is wound onto the connection nodes of the current-carrying conductors so that it contacts the rubber sleeves 2 at the ends and the outer diameter is equal to the outer diameter of these sleeves. Then, a lolymer scavenger 3 with metal tubes 5 is pushed onto the junction. Each metal tube 5 l is wound with a manual flailing along the entire length with the formation of annular grooves of a tractional loleric cross-section in two draws, having a 180 fold flotation for wiring.

The ability to consolidate the compound through metal thin-walled bushings does not reduce reliability compared with vulcanization, but this also significantly, approximately 10 times less, reduces the laboriousness - it is not necessary to produce “lairic and” secondary vulcanization of the rubber mass; the cost of manufacturing a sealed connector is reduced - there is no need to produce expensive moldings and vulcanizer; in addition, there is the possibility of making a sealed connector in a closed lrosfanism - there is no need to place molding forms and a vulcanizer.

Based on the foregoing, the claimed technical result can be considered achieved.

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Sources of information

1 - Central Research Institute of Electric Networks (Central Research Institute of Marine Electronics) OST5.6167-80 “Cable hermetic integral joints. Typical technological processes.

2 - A.G. Rabinovich, L.A. Ruban “Production technology of hydroacoustic equipment. Publishing house "Shipbuilding Leninfad, 1973.

Claims (1)

A sealed connector of two multicore cables with sheaths in the form of hoses with conductive conductors in insulation, placed in a screen made of wire, containing soldered solder assemblies in pairs separated from each other by insulated conductors that protrude from the insulation, protruding outside the hoses, soldered pairwise connection of screens connected cores, characterized in that two rubber bushings, a polymer sealant and two thin-walled metal pipes of plastic metal with a length of e less than two diameters of the hoses to be connected, the rubber mass is made of unvulcanized insulating rubber mass, while the rubber bushings are mounted on the ends of the cables to be connected, have an inner diameter equal to the outer diameter of the hose and are at least 0.5 times the diameter of the hose, the insulating rubber array has an outer diameter equal to the outer diameter of the rubber bushings and is in contact with their ends at the ends, thin-walled metal tubes are worn over the rubber bushings and the rubber mass through limerny seal and a compression along the entire length to form the annular grooves of trapezoidal section.