SU838831A1 - Device for connecting to insulated wire - Google Patents

Description

The invention relates to electrical engineering, in particular to connectors of electrical circuits, and can be used to connect a consumer of electrical energy to a core of an insulated wire without first stripping it from insulation.

A device for connecting R insulated wire containing an insulating casing of two halves, a contact element and a lock [1].

However, this device makes a connection with a point contact. In addition, it takes a relatively long time to connect the consumer to an 'insulated wire.

Closest to the invention is a device containing a housing made of insulating material, one of the parts of which has a blind hole, and the other a cylindrical protrusion, a contact element in the form of a cylindrical cap with cutting edges, located between the parts of the housing and fixed in one of them, and elements for fixing parts of the housing [2].

However, the reliability of this device is insufficient, due to the location of the cutting edges from the closed end of the cap.

The purpose of the invention is to increase reliability.

This goal is achieved by the fact that in the device for connecting to an insulated wire containing a housing made of insulating material, one of the parts of which has a blind hole, and the other a cylindrical protrusion, a contact element in the form of a cylindrical cap with cutting edges placed between the parts the housing and fixed in one of them, and the fixing elements of the parts of the housing, the protrusion is made with recesses, for example, semiconical, located radially at its end, the cutting edges of the cap are located with side of the open end, while the cap is fixed in the hole.

In FIG. 1 shows the proposed device, undocked view; in FIG. 2 - the same, the moment of docking; in FIG. 3 - same, docked view.

The device comprises a housing made of insulating material, one of the parts 1 of which has a protrusion 2 of a cylindrical shape. At the end of the protrusion 2 are arranged gulukonic radial recesses 3, which serve for the initial fixing of the insulated wire. On the inner surface of parts 1 and 4 of the insulating casing, between the stops 5, which limit their rapprochement, flat elastic sealants, for example made of sponge rubber, gaskets 6 are installed. A contact element 7 is fixed in the opening of part 4 in a zid of a cylindrical cap made of a conductive material with a cutting edge 8, located at its end. A conductor core is soldered to the contact element 7, which, after connection, electrically connects the core of the insulated wire to the energy consumer. On parts 1 and 4 of the insulating casing, elements 9 are installed that fix the parts of the casing at the end of the connection process. The inner diameter of the cap is equal to the sum of the diameter of the protrusion, twice the thickness of the insulation and the radius of the conductor of the wire to which you are connecting.

Connecting the device to an insulated wire is as follows.

The insulated wire to which the connection is made is laid in the recesses on the end of the protrusion 2, then the protrusion 2, together with the wire laid on it, is inserted coaxially into the hole of the contact element 7 to place the housing parts 1 and 4 on the stops 5 and at the same time for fixing by the elements 9. Ta the part of the insulation of the conductor, which is located on the side of the contact element during the connection process, is cut off throughout the movement of its cutting edge relative to the insulating protrusion. The conductor core exposed in two places is tightly pressed to the contact element due to the elastic compression forces of that part of the insulation, which is connected between the protrusion and the current-carrying core in the process of connection. In this case, the elastic compression forces are perceived by the cylindrical walls of the cap practically without transfer to the insulating casing, which allows the latter to be carried out mainly on the basis of electric, rather than mechanical strength, i.e., significantly reduce the size of the device and the consumption of materials.

Claims (2)

(54) DEVICE FOR CONNECTING TO THE ISOLATED WIRE The device comprises a housing made of an insulating material, one of the parts of which has a protrusion 2 of cylindrical shape. At the end of the protrusion 2, semi-conical radial recesses 3 are arranged, which are used for initial fixing of the insulated wire. On the inner surface of parts 1 and 4 of the insulating body between the stops 5, limiting their convergence, there are flat elastic sealing materials, such as sponge rubber, gaskets 6. In the hole of part 4 a contact element 7 is fixed in the zide of a cylindrical cap made of conductive material with a cutting edge 8, located at its end. A conductor core is connected to the contact element 7, which, after being connected, connects the conductor of the insulated wire electrically with the energy consumer. In parts 1 and 4 of the insulating body, elements 9 are installed, securing the parts of the body at the end of the connection process. The inner diameter of the cap is equal to the sum of the diameter of the protrusion, twice the thickness of the insulation and the radius of the conductor wire to which the connection is made. Connecting the device to the insulated wire is impacted as follows. The insulated wire to which the connection is made is laid in the notches at the end of the protrusion 2, then the protrusion 2 together with the wire laid on it is inserted into the hole of the contact element 7 coaxially for putting the housing parts 1 and 4 on the stops 5 and simultaneously for fixing the elements 9. Ta the part of the conductor insulation, which during the connection process is on the side of the contact element, is cut off throughout the movement of its cutting edge relative to the insulating protrusion. The bare conductor in two places is tightly pressed against the contact element due to the elastic compression forces of that part of the insulation that is in the process of connection between the protrusion and the current-carrying conductor. In this case, the elastic compression forces are perceived by the cylindrical walls of the cap with little or no transfer to the insulating body, which allows the latter to be performed mainly on the basis of electrical rather than mechanical strength, i.e., significantly reduce the size of the device and the consumption of materials. Claim 1. Device for connecting to an insulated wire, comprising a housing made of insulating material, one of whose parts has a blind hole and the other is a cylindrical protrusion, a contact element in the form of a cylindrical cap with cutting edges, placed between the parts of the housing and fixed in one of them, and fixing elements of the body parts, characterized in that, in order to increase reliability, the protrusion is made with notches located radially at its end, the cutting edges of the cap are located open end, with the cap secured in the hole. 2. The device according to claim 1, characterized in that the notches are made semi-conical. Sources of information taken into account during the examination 1. Author's certificate of the USSR LG 298979, cl. H 01 R 7/04, 1968. 2. USSR author's certificate N ° 636721, cl. H 01 R 9/08, 1977. tfpl. X / / 7/77 /} eSf / r M f $ c. to consumer  / п from re fu gael ,,