SU664255A1 - Electric connector - Google Patents

Description

The invention relates: to the field of electrical engineering.

An electrical connector is known with a locking wrap, which eliminates the possibility of incorrect joining, containing inserts installed in the holes of the connector parts, consisting of a rod and a base in the form of a hexagonal prism 1.

Also known is an electrical connector comprising a plug and a socket and a blocking assembly, made in the form of uniform plug-shaped inserts installed in rectangular openings and sockets, each of which consists of a base, in the form of a prism having a square cross-section, and a rectangular rod sections with a width of less than half the base length. In the articulated position, two liners are located in each hole. Each plug can have four installation positions, which allows

setting a specific code. Blocking of the connector occurs when an attempt is made to join its parts if the position of the liners in the holes does not match.

In this case, the cores of the liners abut one another on the end of the rim and prevent the articulation of the plug and socket of the connection 2.

The disadvantage of such connections is the low reliability of the blocking, since the area of the end contact surfaces of the rods by insertion, which entered during the locking in the state of mechanical contact, is very small, as a result of which the specific pressures of the load on rods of the liners arising from locking exceed the limit The strengths of the material and the rods of the insert are destroyed.

Claims (2)

The aim of the invention is to improve the reliability of the lock. This is achieved by the fact that in the proposed electrical connector comprising a plug, a socket and a blocking unit, it is inserted as insulated housings of a plug and a socket installed in the holes, which interact in pairs with one another with identical plug-in inserts, each of which consists of a base, in the form of a prism and a rod, the part of the lateral surface of which is an extension of the lateral surface of the adjacent base portion, and its other part interacting with the counter insert, Each of the ISOLATING enclosures has a protrusion in which the holes are filled in. the rod is described around it, with the middle and the smaller of the two cylindrical portions of the base located in the hole. FIG. 1 schematically shows the proposed connection, the overall appearance; in Fig .. 2gvd along arrow A in Fig, 1; in fig. 3 is a section along B-bB in FIG. one; FIG. 4 shows the insert and the liner rod, the cross section in FIG. 5 - plug connector, a longitudinal section along the protrusion of the housing. The electrical connector includes a plug 1, a socket 2 and a blocking assembly consisting of identical inserts 3 located in guide holes 4 located on the projections 5 of the insulating bodies. Each hole has a section of cylindrical shape b and a section in the form of a regular three-sided prism 7. The location of the input pads is due to the location of the contact elements. Each liner has a rod 8 and the base of the step of the form with the middle section 9 of the right triangular prism and the extreme sections 10 and 11 in the form of cylinder circles. The cylinder 10 is inscribed in a prism that is inscribed in the cylinder 11, adjacent to the rod, the side surface part 12 of which is cylindrical and the other part 13, interacting during articulation with the return liner. formed by a plane parallel to the longitudinal axis of the liner. Thus, the rod in cross section has the shape of a segment, the height of the segment H is less than the radius R of the cylindrical part II of the base. The base of the liner with a triangular prism section, having the shape of a regular double-sided curvature, provides the liner with three different installation positions in accordance with the code, where each next position is reached by rotating the liner 12O relative to its central axis and former position. The liners are secured in the hole with one of the connections, for example, adhesive. The cylindrical part 6 of the guide hole 4 fits with the base portion 10 of the insert, its prismatic part 7 ' with the corresponding base portion 9 of the liner, and the end surface 14 of the cylinder 11 fits with the surface 15 of the protrusion. In the proposed connector, the rods of the bush are extended beyond the mounting holes, which allows to increase the cross-sectional area of the liner rods. In combination with the relative M increase in the interaction area in the locked position, this ensures high reliability. The connector works as follows. When the junction of the plug and socket of the electrical connector arises, an early articulation of the liners occurs, in the case of a matching combination of the position of the liners. In this case, the surfaces 13 of each pair of inserts are mutually matched. In the case of a mismatch of the positions of the liners, when attempting to couple the plug and socket, the rods of the opposing elements abut one another and end surfaces and the joint does not occur. The area of interaction of the end surfaces of the pair of opposing liners in any combination of positions is 2/3 of the entire end surface of the insert, which has the shape of a segment, which ensures high mechanical strength of this zone and reliability. Since the total length of the rods of a pair of opposing liners is greater than the length of the detachable connector of the conductor, its part cannot close with. Thus, the functional assembly unit is blocked when an attempt is made to mistakenly include it in the circuitry of the product. Formula Shadow Invention An electrical connector containing a plug, a socket and a blocking block, suited in the form of insulated plug and socket insulated housings in pairs, which interact in pairs with one another identical plug-like inserts, each of which consists of a base with a section in the form of a prism and a rod , the part of the lateral surface of which is the continuation of the lateral surface of the adjacent base area, and the other part of it, which interacts with the joints View A 556 Research Institute with a counter insert, is formed by a plane parallel to the longitudinal axis of the insert, characterized in that, in order to increase the reliability of interlocking, each of the insulation housings contains a protrusion in which the holes are fixed, the base of the insert is step-shaped. with a middle section in the form of a regular trihedral prism and extreme - in the form of circular cylinders, one of which is inscribed in the prism, and the adjacent to the rod is described around it, with the middle and smaller of the two cylindrical holes in the hole their base stations. Sources of information taken into account in the examination 1. US Patent LG 3582867, cl. 339-92, 1971. 2. The UK patent number 1351225, cl. H 2 E, 1974. LA