Abstract:
PURPOSE: An electronics opening/closing device is provided to induce up and down motion of a shaft which is combined to a moving core according to the up and down motion of the moving core by creating magnetic flux through a coil. CONSTITUTION: An electronics opening/closing device(100) comprises an arc suppression part(110) and a driving part(120). The arc suppression part is connected to an external device in order to supply a power source. The driving part controls opening and closing of a contact point by using an electric signal. The driving part supplies the power source to the arc suppression part connected to the external device. The arc suppression part comprises a fixed contact point(111), a moving contact point(112), and housing(114). The housing is formed into a box shape by using thermal resistance like ceramics etc. The fixed contact point, the moving contact point, a voltage spring, and a shaft are accepted in the inner side of the housing.
Abstract:
PURPOSE: A control device of an electric vehicle battery charger liquid crystal display apparatus is provided to optimize the brightness of a backlight by introducing an apparatus for user recognition and external illuminance detection. CONSTITUTION: A sensor part(110) detects a distance from an adjacent object. A user recognition part(120) compares the detected distance with pre-saved distance information. The user recognition part generates a user detection signal. A controller(130) receives the user detection signal. The controller operates a liquid crystal display apparatus.
Abstract:
PURPOSE: An apparatus for opening and closing a connector part in a charger for an electric vehicle is provided to supply charging check information by recording information about a user and a vehicle. CONSTITUTION: A user checking unit(210) checks whether user ID information inputted through a user interface coincides with previously registered user ID information. The user checking unit outputs a check result. A door opening and closing unit(220) switches a door of a connector part in a charger of an electric vehicle according to an inputted signal. A control unit(230) receives the output of the user checking unit and transmits an open signal to the door opening and closing unit if the output of the user checking unit coincides with the user ID information.
Abstract:
PURPOSE: An electric energy management system is provided to determine whether conduction is generated or not by examining admittance or impedance at several positions of a same power line. CONSTITUTION: An electrical energy management system comprises a first watthour meter(21), a plurality of second watthour meters(23), and a remote server(25). The first watthour meter is installed in an electric supply high position which is near to a power source and measures the quantity of electricity provided to a load. The first watthour meter produces first admittance based on the quantity of the electricity measured. The second watthour meter is installed in the electric supply low position of the same power line as the first watthour meter and measures the quantity of the electricity provided to the load. The second watthour meter produces second admittance based on the quantity of the electricity measured. The remote server collects the information of an electricity quantity from the first watthour meter and the second watthour meter.
Abstract:
PURPOSE: An electromagnetic switching device is provided to reduce impact and noise which are generated in ascending and descending a shaft by arranging a buffer member between a metal plate and a fixed core. CONSTITUTION: A buffer member(300) is arranged a fixed core(140) and a metal plate and absorbs impact. A shaft(170) has a flange in top. The flange has an incline in the bottom. The fixed core has a groove so that a flange is inserted into the upper part thereof. An impact pad(400) is attached to the incline and absorbs impact.
Abstract:
PURPOSE: A relay is provided to reduce noise which is generated from a movable terminal by using the elastic force of a damper when a fixed terminal and a movable terminal are contacted to each other, and then are separated from each other. CONSTITUTION: A movable terminal(115) is contacted to a fixed terminal(112) or is separated from the fixed terminal. The driving unit moves the movable terminal(115) and is contacted to or is separated from the fixed terminal. A damper(120) is located in the lower part of the movable terminal and supports the movable terminal. An elastic member supplies an elastic force to the fixed terminal. The damper is comprised of an elastic member of a plastic member.
Abstract:
PURPOSE: An engine brake apparatus of an electric vehicle is provided to deal with a brake trouble by controlling an engine brake with a gear control lever or various controllers. CONSTITUTION: An inverter(10-10) controls a motor of an electric vehicle. A driver inputs an engine brake command by an engine brake command input unit(10-15). A control unit(10-8) performs a regenerative braking by controlling the inverter.
Abstract:
PURPOSE: A terminal cover mechanism for a manual motor starter is provided to prevent the flowing of a terminal cover up and down by forming a flowing prevention unit at each corner. CONSTITUTION: An upper frame(2) covers a lower external enclosure. The upper frame has both ends in longitudinal direction. The terminal unit has a terminal which is electrically connected to a voltage terminal and a load terminal respectively. An insulating barrier(6) is connected to the upper frame. A terminal cover(5) is detachable from the insulating barrier.
Abstract:
PURPOSE: A switching element having a dual coil is provided to reduce the manufacture cost and the size of a relay by simply constituting the circuit of the relay and to reduce the power consumption of a battery car. CONSTITUTION: One end of a first resistor(203) is connected to a current source terminal. One end of a first coil(209) is connected to one end of the first resistor. One end of a second resistor is connected to one end of the first resistor. One end of a capacitor(204) is connected to the other end of the first resistor. One end of a third resistor is connected to the other end of the capacitor. A fourth resistor is connected between the other end of the third resistor and a ground terminal. A gate terminal is connected to the other end of the third resistor. A drain terminal is connected to the other end of the first coil. A source terminal is connected to the ground terminal.