| 摘要 |
The present invention relates to an electronic vibrator comprising: a power supply unit for converting AC power into DC power; a bridge circuit unit comprising an IGBT, as a power switching element, in order to enable driving of a large-capacity oscillator; a circuit driving unit for driving the bridge circuit unit, the circuit driving unit applying a sine wave, which is a sine wave PWM modulation reference wave, together with a triangular wave; and a vibration generator connected to the bridge circuit unit so as to generate vibration by means of an electric current provided by the bridge circuit unit, wherein the vibration generator comprises: an E core, which has an E-shape, which is made of a steel plate, and which comprises multiple overlapping layers; an I core, which is positioned at a distance from the E core, which is made of a steel plate, which comprises multiple overlapping layers, and which has an I-shape; a winding unit wound around a portion horizontally protruding from the center of the E core, an AC current being applied to the winding unit; a housing for containing the E core, the I core, and the winding unit; a wing plate protruding from a side wall of the housing and comprising a wing through-hole, which is a bored hole; a bottom plate member, which is positioned at a distance from the housing, and which has a containing groove, thereby containing the I core; a bolt which penetrates the wing through-hole and is coupled to the bottom plate member; and a urethane spring, which is coupled to the housing, which adjusts impacts and buffering, and which is made of urethane. The electronic vibrator has the following advantageous effects: the same pulverizes/scatters powder, which is transferred inside a chute, a hopper, or a transfer piping facility, thereby preventing a sloping discharge opening from being narrowed or clogged by adsorption or flocking of the powder inside the discharge opening; liquidity of a manufacturing facility is improved/maintained such that powder can be efficiently transferred/supplied from the facility to transfer lines; a sloping discharge opening of the facility is prevented from being narrowed or clogged by adsorption or flocking of the powder inside the discharge opening; the electronic vibrator can be applied to an existing facility comparatively easily and installed/used; it is possible to prevent an excessive flow of electric current due to an increased time of application of current to a power element in an ultra-low frequency operation range; prevention of an excessive flow of electric current leads to prevention of a fracture of the power element; and a stable operation can be guaranteed, even in the ultra-low frequency operation interval, without increasing the current. |
