Dc socket and power supply device
AssigneeSchneider Electric Industries SAS
InventorsKun XIONG, Youliang ZHANG
Life of this patent
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Abstract
Embodiments of the disclosure provides a DC socket and a power supply device. A linkage detection unit of the DC socket is disposed adjacent to a positive socket contact or a negative socket contact. A mechanical contact switch is electrically connected between the positive socket contact and a positive power input terminal of the DC socket. A control circuit is electrically connected to the linkage detection unit. A delayed switching-off unit is electrically connected between the positive socket contact and the positive power input terminal, and electrically connected to the control circuit.
Claims18
A DC socket comprising:
- a positive socket contact and a negative socket contact;
- a linkage detection unit disposed adjacent to the positive socket contact or the negative socket contact, and configured to generate a trigger signal in response to a pin of a plug being pulled out from the positive socket contact or the negative socket contact and passing a first position;
- a mechanical contact switch electrically connected between the positive socket contact and a positive power input terminal of the DC socket, and configured to be closed in response to the pin being inserted into the positive socket contact or the negative socket contact to a second position and be opened in response to the pin being pulled out from the positive socket contact or the negative socket contact and passing the second position, wherein a pulled-out portion of the pin in the second position is longer than that of the pin in the first position;
- a control circuit electrically connected to the linkage detection unit, and configured to generate a control signal lasting for a predetermined duration in response to receiving the trigger signal;
- and
- a delayed switching-off unit electrically connected between the positive socket contact and the positive power input terminal and electrically connected to the control circuit, and configured to be switched on in response to receiving the control signal from the control circuit and be switched off before the pin is pulled out from the positive socket contact or the negative socket contact.
A power supply device comprising a DC socket, wherein the DC socket comprises:
- a positive socket contact and a negative socket contact;
- a linkage detection unit disposed adjacent to the positive socket contact or the negative socket contact, and configured to generate a trigger signal in response to a pin of a plug being pulled out from the positive socket contact or the negative socket contact and passing a first position;
- a mechanical contact switch electrically connected between the positive socket contact and a positive power input terminal of the DC socket, and configured to be closed in response to the pin being inserted into the positive socket contact or the negative socket contact to a second position and be opened in response to the pin being pulled out from the positive socket contact or the negative socket contact and passing the second position, wherein a pulled-out portion of the pin in the second position is longer than that of the pin in the first position;
- a control circuit electrically connected to the linkage detection unit, and configured to generate a control signal lasting for a predetermined duration in response to receiving the trigger signal;
- and
- a delayed switching-off unit electrically connected between the positive socket contact and the positive power input terminal and electrically connected to the control circuit, and configured to be switched on in response to receiving the control signal from the control circuit and be switched off before the pin is pulled out from the positive socket contact or the negative socket contact.
Dependencies are inferred from the claim text.