Charging stand for electric vehicle

摘要

Disclosed is a charging stand for an electric vehicle, the charging stand including a main body, a door coupled to the main body in such a way as to be opened or closed, and an alarm device generating an alarm if the door is opened, wherein the alarm device has a door sensing unit causing a change in impedance if the door is opened, a controller receiving a signal transmitted from the door sensing unit, and a switching circuit activated by the controller to generate an alarm or store an alarm history, so that the charging stand is advantageous in that the opening of the door can be precisely detected, and the alarm history can be checked later.

主权项

1. A charging stand for an electric vehicle, the charging stand comprising:
a main body; a door coupled to the main body; a power supply unit configured to provide power to the electric vehicle; and an alarm device configured to detect whether the door is open or closed and generate an alarm when the door is opened, the alarm device comprising:
a door sensing unit configured to cause a change in impedance of a circuit of the alarm device when the door is opened;a controller configured to receive a signal transmitted from the door sensing unit;a switching circuit configured to be activated by the controller;a relay configured to be turned on or off by the switching circuit;a history record unit configured to record information related to each occurrence of the door opening according to an on/off signal of the relay; andan alarm unit configured to generate the alarm according to the on/off signal of the relay, wherein the controller is further configured to: shut off the power provided by the power supply unit when the door is opened; repeatedly determine a status of the door at predetermined intervals of time; cause the history record unit to generate a record for a result of each of the determinations, wherein each record separately comprises the status and time of corresponding determination determine each occurrence and a corresponding time of the door opening using each determined status of the door according to an on/off status of the relay.