Voltage regulating apparatus of voltage stabilizer

Abstract

The invention relates to a voltage adjusting device for a voltage stabilizer, which comprises an annular coil, a brush assembly and a servomotor for controlling rotation of the brush assembly. The voltage adjusting device is characterized in that the circular shaft center of the annular coil is provided with a positioning shaft which is relatively fixed on the annular coil; one end of a brush armis rotatably sleeved on the positioning shaft; a coaxial gear disc is arranged above the top end of the annular coil, and fixedly sleeved on the positioning shaft; and the servomotor is arranged on the brush arm in a definite distance from the positioning shaft, and an output shaft of the servomotor is provided with a transmission gear matched with a planetary gear of the gear disc. The voltage adjusting device has the following advantages: the servomotor is rearranged at the edge part of the annular coil from the center of the annular coil, and the voltage adjusting device can effectively reduce requirement on power of the servomotor; and next, a conductive brush is arranged on the lateral surface of the annular coil so as to effectively enlarge the contact area of the conductive brush and the annular coil, and reduce working temperature of the conductive brush.

Description

technical field [0001] The invention relates to a voltage regulating device, more specifically to a voltage regulating device of a voltage stabilizer. Background technique [0002] Most of the voltage regulating devices of various types of voltage stabilizers on the market are installed on the top of the toroidal coil. The voltage regulating device includes a central shaft, a servo motor, a carbon brush set and a toroidal coil. The center of the servo motor is installed in the ring coil and fixedly connected with the central shaft. The carbon brush group includes a carbon brush arm and a conductive brush. The handle of the carbon brush arm is connected to the output shaft of the servo motor. Fixed connection, the conductive brush is in full contact with the polished surface on the top of the ring coil; its working method is that the output shaft of the servo motor directly controls the carbon brush arm of the carbon brush group and the conductive brush along the diameter of ...

AI Technical Summary

Problems solved by technology

[0002] Most of the voltage regulating devices of various types of voltage stabilizers on the market are installed on the top of the toroidal coil. The voltage regulating device includes a central shaft, a servo motor, a carbon brush set and a toroidal coil. The center of the servo motor is installed in the ring coil and fixedly connected with the central shaft. The carbon brush group includes a carbon brush arm and a conductive brush. The handle of the carbon brush arm is connected to the output shaft of the servo motor. Fixed connection, the conductive brush is in full contact with the polished surface on the top of the ring coil; its working method is that the output shaft of the servo motor directly controls the carbon brush arm of the carbon brush group and the conductive brush along the diameter of the top surface of the ring coil Rotate to complete the pressure regulation work; since the servo motor is installed in the center of the ring coil, the servo motor power is easily affected by the diameter of the ring coil, in order to ensure that the servo motor has enough torque to control the rotation of the carbon brush group, when the diameter of the ring coil The larger the torque of the servo motor is, the greater the corresponding requirement is; usually, the larger the torque of the servo motor, the greater the power, and the greater the power, the greater the power consumption of the servo motor; When the volume of the servo motor increases, it is not conducive to the installation of the motor; secondly, because the conductive brush is in contact with the top of the toroidal coil, and the width of the top of the toroidal coil is limited, the contact area between the conductive brush and the toroidal coil is correspondingly reduced. When the contact area between the conductive brush and the ring coil decreases, the cross-sectional area through which the current passes decreases correspondingly. When the cross-sectional area through which the current passes decreases, the working temperature of the conductive brush is high, which affects the service life of the whole machine

Images