SU983847A1 - Sealed coaxial cable connector assembly - Google Patents

Description

(5) SEALED COAXIAL CABLE CONNECTOR

The invention relates to electrical engineering, in particular to hermetic. connectors.

A coaxial symmetrical is known - a connector comprising a housing and an axially located floating contact element fixed in a dielectric support washer with a split spring-loaded toothed crown G I.

This connector has a low Voltage Standing Wave Ratio (VSWR) value and can be effectively used to connect RF cables, but in the longitudinal direction it is not tight. This is his fault.

Sealed connectors are known, comprising a housing, conductors, an insulator, and a sealing element in the form of a glass insert, which is soldered to the housing and the conductors t 2 b

The disadvantages of these connectors are that the materials of the case and the production of the wires must be matched with the glass insert according to the temperature coefficient of linear expansion. This limits the choice of materials. Techno logs spa is quite complex and does not provide consistent quality. The electrical parameters of such connectors, especially at ultra-high frequencies, are unsatisfactory. For example,

P VSWR ranges from 1.2 to 1.5.

Known other sealed coaxial cable connector comprising a housing in which elements are placed

Claims (3)

15 fastening the outer cable conductor, the insulating washer, in the hole of which the inner conductor is located, and the sealing element in the form of rings installed between the inner conductor and the cable insulation, and the outer diameter of each ring exceeds the inner diameter of the adjacent ring of larger diameter by the pain of 3983 is double the value of compression deformation 3 The main disadvantage of this connector is the high values of VSWR, due to the large number of discontinuities in the connector, x in both the axial and radial directions. Structurally, this connector is complicated, and the cable cuts in it are non-technological. The closest in technical essence and the achieved result to the proposed is a connector comprising a case in which elements of fastening and sealing the outer conductor of the cable are placed, the end insulator, in the hole of which the inner conductor is located, and located between the insulator, the housing and the conductor. a sealing element made of an insulating material having adhesion to the material of the body and the conductor 4. However, in this connector there is an increased misalignment of the inner conductor relative to the housing, the layers of sealing insulating material from the end surfaces of the insulator are unprotected from possible depressurization in case of gas release from the insulating material at elevated temperatures and the complexity of applying to the end surfaces of the insulator having complex geometric shape .. The purpose of the invention is to improve the operational and technological characteristics. The goal is achieved by the fact that, in a well-known hermetic coaxial cable connector, the insulator is made of two annular parts coaxially with a gap, with chamfers facing each other, and the sealing element is located in the cavity formed by the housing, conductor and facing each other the surfaces of the ring portions of the insulators. The drawing shows a connector, a general view. A sealed coaxial cable connector includes a housing 1, which is an outer conductor in which an insulator 2 is placed, made of two annular parts, in whose holes the inner conductor 3 is located. Between the housing 1 and internal conductor. NOIC. 3 an annular sealing element is placed, made of insulating material, having adhesion to the materials of the housing and the inner conductor. The housing 1 also contains elements 5 for fastening and sealing the cable 6, in particular its outer conductor. The surfaces of the annular parts of the insulators 2, facing the housing 1 and the inner conductor 3, are chamfered 7; The chamfers on the annular parts of the insulators face each other, and the annular parts of the insulators are installed coaxially and with a gap. The sealing element k is located in the cavity formed by the housing 1, the inner conductor 3 and the surfaces of annular parts of insulators 2 facing each other. The proposed connector provides low values of VSWR in the manufacture of insulators and sealing element from insulating mats rials with good dielectric characteristics. The geometrical shape of the insulators and the sealing element allows the connector to align well with the cable with respect to the characteristic impedance. This is facilitated, in particular, by the placement of the sealing element between the insulators and the possibility of making the middle part of the element relatively thin. The absence of open areas of the sealing element eliminates its mechanical damage, destruction under the action of various external factors and thereby provides an increase in the reliability of the connector. The connector can be effectively used in terms of vibration, shock, overload and various temperatures. Claims of Invention Hermetic coaxial cable connector comprising a case in which elements of fastening and sealing the outer conductor of a cable are placed, an annular insulator, in the hole of which an internal conductor is located, and an insulating element made of an insulator located between the insulator, case and conductor. material that has an adhesion to the material of the housing and the conductor, about the fact that, in order to improve its operational and technological characteristics, the insulator is made of two the annular parts installed coaxially with the gap, with the chamfers facing each other, and the sealing element is located in the cavity formed by the housing, the conductor of the annular parts of the insulators, facing each other. Sources of information taken into account in the examination 1. USSR author's certificate ff 180661, cl. H 01 R 15/16, 1965. 9838 7 2. - Design of microelectronic equipment. Ed. B.F. Vysotsky. M., Soviet Radio, 1975, 3. USSR author's certificate If, cl. H 01 R 17/12, 1976. k. USSR Author's Certificate in Application fP 29525 2-07, cl. H 01 R 17 / 1-2, 1980.