# US 2021/0242627 A1 · Secondary securing means, electrical plug connector and electrical plug connection > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0242627 A1 - Document ID: US20210242627A1 - Status: Published application - Kind: A1 - Application number: 17/225,343 - Filed: 2021-04-08 - Published: 2021-08-05 - Earliest claimed: 2018-10-09 - Assignees: Rosenberger Hochfrequenztechnik GmbH & Co. KG - Applicants: Rosenberger Hochfrequenztechnik GmbH & Co. KG - Inventors: Manuel Pemwieser; Christian Maier - Web page: https://patentgrep.com/patent/US20210242627A1 ## CPC - H01R 13/6275: {Latching arms not integral with the housing (H01R13/6276, H01R13/6277, H01R13/6278 take precedence)} - H01R 13/6272: {comprising a single latching arm} - H01R 13/639: Additional means for holding or locking coupling parts together, after engagement, {e.g. separate keylock, retainer strap} - H01R 13/641: by indicating incorrect coupling; by indicating correct or full engagement - H01R 2201/26: for vehicles - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS ## Abstract A secondary securing means for locking an electrical plug connection of a first electrical plug connector and a mating plug connector includes a securing element and a plug-in prevention means. By a closing movement, the securing element can be moved from a preliminary latching position into a locking position in which the securing element mechanically secures the plugged plug connection. The securing element is operatively connected to the plugging prevention means in such a way that, during the closing movement of the securing element, the plug-in prevention means can be moved from a home position in which the plugging prevention means blocks a complete insertion of the mating plug connector into the first plug connector, to a clearing position in which the plug-in prevention means clears the displacement path between the mating plug connector and the first plug connector complete insertion of the mating plug connector into the first plug connector The plug-in prevention means moving from the home position into the clearing position by rotation about an axis of rotation or along a support element. ## Claims ### Claim 1 A secondary securing means for locking an electrical plug-in connection of a first electrical plug-in connector and a mating electrical plug-in connector, which mating electrical mating plug-in connector inserts along a displacement path into the first electrical plug-in connector, said secondary securing means comprising: a securing element and a plug-in prevention means, the securing element being movable, by a closing movement, from a preliminary latching position to a locking position, the locking position being a position in which the securing element mechanically secures the first electrical plug-in connector to the mating electrical plug-in connector to lock the electrical connection with the mating electrical plug-in connector inserted completely into the first electrical plug-in connector, the securing element being operatively connected to the plug-in prevention means in such a way that, during the closing movement, the plug-in prevention means is movable from a home position to a clearing position, the home position being a position, in which the plug-in prevention means blocks complete insertion of the mating electrical plug-in connector into the first electrical plug-in connector the clearing position being a position in which in which the plug-in prevention means clears the displacement path to allow complete insertion of the mating electrical plug-in connector into the first electrical plug-in connector, the plug-in prevention means being movable from the home position to the clearing position by a rotational movement of the plug-in prevention means. ### Claim 2 (depends on 1) The secondary securing means as claimed in claim 1, wherein the closing movement of the securing element is a linear movement. ### Claim 3 (depends on 2) A secondary securing means as claimed in claim 2, wherein the closing movement of the securing element is orthogonal to an insertion direction in which the mating electrical plug-in connector inserts into the first electrical plug connector. ### Claim 4 (depends on 1) A secondary securing means as claimed in claim 1, wherein the plug-in prevention means clears the displacement path by being moved radially outward from a center axis of the first electrical plug-in connector. ### Claim 5 An electrical plug-in connector for connection to an electrical mating plug-in connector which inserts into the electrical plug-in connector by way of a displacement path, said electrical plug-in connector comprising: a housing and a plug-in prevention means, the plug-in prevention means being movable between a home position and a clearing position, the home position being a position at which the plug-in prevention means blocks complete insertion of the mating plug-in connector into the electrical plug-in connector, the clearing position being a position at which the plug-in prevention means clears the displacement path allowing complete insertion of the mating plug-in connector into the electrical plug-in connector, the plug-in prevention means being movable from the home position to the clearing position by a rotational movement of the plug-in prevention means. ### Claim 6 (depends on 5) An electrical plug-in connector as claimed in claim 5, further comprising an electrical external conductor which has a Koshiri ring. ### Claim 7 (depends on 6) An electrical plug-in connector as claimed in claim 6, wherein in the home position the plug-in prevention means is supported on the external conductor. ### Claim 8 (depends on 5) An electrical plug-in connector as claimed in claim 5, wherein, the rotational movement of the plug-in prevention means is a rotational movement about a rotational axis and wherein the rotational axis is formed by a rotary joint of the housing of the plug-in connector. ### Claim 9 (depends on 5) An electrical plug-in connector as claimed in claim 5, wherein the rotation axis runs is parallel to an insertion direction in which the mating plug-in connector inserts into the electrical plug-in connector. ### Claim 10 (depends on 5) An electrical plug-in connector as claimed in claim 5, wherein the housing of the first electrical plug-in connector includes a supporting element, the plug-in prevention means has a stop head for blocking the complete insertion of the mating electrical plug-in connector into the first electrical plug-in connector and wherein the plug-in prevention means also has a deformable spring aim which extends from the stop head toward the supporting element. ### Claim 11 (depends on 10) An electrical plug-in connector as claimed in claim 10, wherein, the electrical plug-in connector has a housing which includes a recess and a supporting element and wherein the recess has an edge which forms the supporting element. ### Claim 12 (depends on 11) An electrical plug-in connector as claimed in claim 11, the spring arm is supported on the edge of the recess. ### Claim 13 (depends on 5) An electrical plug-in connector as claimed in claim 5, wherein the plug-in prevention means forms, together with a securing element, a secondary securing means for locking an electrical plug-in connection which electrical plug-in connection consists of the electrical plug-in connector a mating electrical plug-in connector. ### Claim 14 (canceled) ### Claim 15 (depends on 1) A secondary securing means as claimed in claim 1 wherein, the rotational movement of the plug-in prevention means is a rotational movement about a rotational axis. ### Claim 16 (depends on 5) A secondary securing means as claimed in claim 5 wherein, the rotational movement of the plug-in prevention means is a rotational movement about a rotational axis. ### Claim 17 (depends on 1) A secondary securing means as claimed in claim 1 wherein, the first electrical plug-in connector has a housing which includes a supporting element and wherein the rotational movement of the plug-in prevention means is a movement along the supporting element. ### Claim 18 (depends on 15) An electrical plug-in connector as claimed in claim 15, wherein the rotation axis is orthogonal to an insertion direction in which the mating plug-in connector inserts into the electrical plug-in connector. ### Claim 19 An electrical plug-in connector for connection to an electrical mating plug-in connector which inserts into the electrical plug-in connector by way of a displacement path, said electrical plug-in connector comprising: a housing and a plug-in prevention means, the housing including a supporting element, the plug-in prevention means being movable between a home position and a clearing position, the home position being a position at which the plug-in prevention means blocks complete insertion of the mating plug-in connector into the electrical plug-in connector, the clearing position being a position at which the plug-in prevention means clears the displacement path allowing complete insertion of the mating plug-in connector into the electrical plug-in connector, the plug-in prevention means being movable from the home position to the clearing position by a rotational movement of the plug-in prevention means, the rotational movement being a movement along the supporting means.