US 12,424,802 B2
Technique for preventing arcing when disconnecting a DC connection by using an extension of a line compound
Marc Klimpel, Lage (DE)
Assigned to PHOENIX CONTACT GMBH & CO. KG, Blomberg (DE)
Appl. No. 17/786,542
Filed by Phoenix Contact GmbH & Co. KG, Blomberg (DE)
PCT Filed Dec. 16, 2020, PCT No. PCT/EP2020/086514
§ 371(c)(1), (2) Date Feb. 1, 2023,
PCT Pub. No. WO2021/122812, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 10 2019 135 122.7 (DE), filed on Dec. 19, 2019.
Prior Publication US 2023/0178941 A1, Jun. 8, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01R 13/703 (2006.01); H01R 13/648 (2006.01)
CPC H01R 13/7038 (2013.01) [H01R 13/6485 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A plug-in contact device for preventing or extinguishing an arc when a DC connection is disconnected or closed by using an extension of a line compound, comprising:
at least two connectors at ends of an extension of a line compound, each having a main contact (HA) and an auxiliary contact (HI), the HA of each of the at least two connectors comprising a first contact half (HA1) and a second contact half (HA2), which are detachably intermateable, the HA being configured to:
connect the HA1 and the HA2 in an electrically conductive manner in a mated state of the respective connector,
galvanically isolate the HA1 and the HA2 in an unmated state of the respective connector,
connect the HA1 and the HA2 in an electrically conductive manner in a first intermediate state of the respective connector between the mated state and the unmated state, and
galvanically isolate the HA1 and the HA2 in a second intermediate state of the respective connector between the first intermediate state and the unmated state,
wherein the auxiliary contact HI of each of the at least two connectors comprises a first contact half (HI1) and a second contact half (HI2), which are detachably intermateable, the HI being configured to:
galvanically isolate the HI1 and the HI2 in the mated state of the respective connector,
galvanically isolate the HI1 and the HI2 in the unmated state of the respective connector,
connect the HI1 and the HI2 in an electrically conductive manner in the first intermediate state of the respective connector, and
connect the HI1 and the HI2 in an electrically conductive manner in the second intermediate state of the respective connector,
wherein the HA2 and the HI2 of the respective connector are connected in an electrically conductive manner,
wherein the HA2 of a first connector is connected to the HA1 of a second connector in an electrically conductive manner,
further comprising an electronic switching unit, whose first terminal is connected in an electrically conductive manner to the HA1 of the first connector, and whose second terminal is connected in an electrically conductive manner to the HI1 of the first connector and of the second connector,
wherein the electronic switching unit is configured, in response to a transition from the mated state to the first intermediate state of at least one of the connectors, to connect the first terminal and the second terminal in an electrically conductive manner, or to reduce an impedance between the first terminal and the second terminal, and, in response to a transition from the first intermediate state to the second intermediate state of at least one of the connectors and/or from the second intermediate state to the unmated state of at least one of the connectors, to electrically isolate the first terminal and the second terminal, or to increase an impedance between the first terminal and the second terminal.