CN211481173U - Low-voltage wide-range input alternating current voltage stabilizer - Google Patents
Low-voltage wide-range input alternating current voltage stabilizer Download PDFInfo
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- CN211481173U CN211481173U CN202020317900.XU CN202020317900U CN211481173U CN 211481173 U CN211481173 U CN 211481173U CN 202020317900 U CN202020317900 U CN 202020317900U CN 211481173 U CN211481173 U CN 211481173U
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Abstract
The number of turns of the outer-layer coil winding is designed to be more than that of the inner-layer coil winding, so that voltage-stabilized output can be ensured when the input voltage is lower, the minimum input voltage can reach 90V or even 50V, the lower limit of the input voltage is greatly expanded, the bottleneck of 160V of the minimum input voltage of a common voltage stabilizer is broken, and the low-voltage stabilization function is realized; meanwhile, a switching tap is added on the outer-layer coil winding, so that the upper limit of the input voltage can be increased, for example, the upper limit of the input voltage can be increased from 250V to 300V, and the stability of the output voltage during voltage reduction output is ensured; the shutdown reset circuit has the effects that after shutdown, the carbon brush assembly stays on the coil close to the farthest end of the outer-layer coil winding, the input resistance of the voltage stabilizer is ensured to be the maximum value when the voltage stabilizer is started, the startup inrush current can be reduced, and the impact on the voltage stabilizer when the voltage stabilizer is started is reduced.
Description
Technical Field
The utility model belongs to the technical field of the alternating current voltage stabilizer, specifically be a alternating current voltage stabilizer who relates to a low-voltage wide range input.
Background
The automatic AC voltage stabilizer is a closed-loop control system consisting of a specially designed voltage regulator or transformer and a controller or control circuit, and utilizes a servo motor to drive a carbon brush assembly to automatically adjust the position of the carbon brush assembly on an outer coil winding of the contact voltage regulator or transformer, thereby achieving the purpose of outputting stable voltage. The standard input voltage range of the current voltage stabilizer industry is generally single-phase 160-250V (three-phase 280-430V), but due to insufficient power in part of regions, the input voltage is lower than the range, so that electric equipment cannot work normally, and the application of the automatic alternating current voltage stabilizer is restricted.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem existing in the prior art and provides an alternating current voltage stabilizer with low voltage and wide input range.
The above technical problem of the present invention can be solved by the following technical solutions: an alternating current voltage stabilizer with low voltage and wide input range comprises a voltage regulating transformer, a carbon brush assembly matched with a coil winding of the voltage regulating transformer, a speed reducing motor for driving the carbon brush assembly, a first voltage regulating controller, an output controller and a control system, wherein the voltage regulating transformer is an autotransformer, an inner coil winding and an outer coil winding are wound on a high-permeability iron core of the autotransformer, the inner coil winding and the outer coil winding are connected in series to form the coil winding of the voltage regulating transformer, the ratio of the number of turns of the inner coil winding to the number of turns of the outer coil winding is 1: 5-6, the carbon brush assembly is matched with the outer coil winding, a 220V first tap and a 220V second tap are arranged on the outer coil winding, the ratio of the number of turns of the coil at the 220V first tap to the number of turns of a bus of the coil winding is 22:25, the number of turns of the coil at the 220V second tap is 10% less than that, the 220V first tap and the 220V second tap are connected to a 220V output line through the first voltage regulation controller, a first output controller is arranged on the 220V output line, the control system comprises a power circuit, a shutdown reset circuit, a sampling circuit, a reference circuit, a master control circuit, a motor driving circuit, a voltage regulation circuit and a protection circuit, wherein the shutdown reset circuit comprises an energy storage capacitor, an induction coil of the power circuit is wound on a high-permeability iron core of a voltage regulation transformer, the power circuit is connected to the shutdown reset circuit, the sampling circuit and the reference circuit, the shutdown reset circuit, the sampling circuit and the reference circuit are respectively connected to the master control circuit, the master control circuit is connected to the motor driving circuit, the voltage regulation circuit and the protection circuit, the motor driving circuit is connected to a speed reduction motor, the voltage regulation circuit is connected to the first voltage regulation controller, and the protection.
Preferably, the outer-layer coil winding is further provided with a 110V first tap and a 110V second tap, the ratio of the number of turns of the coil at the 110V first tap to the number of turns of the bus coil of the coil winding is 11:25, the number of turns of the coil at the 110V second tap is 10% less than that of the turns of the coil at the 110V first tap, the 110V first tap and the 110V second tap are connected to a 110V output line through a second voltage regulation controller, the 110V output line is provided with a second output controller, the second voltage regulation controller is connected to a voltage regulation circuit, and the second output controller is connected to a protection circuit and is linked with the first output controller.
The use method of the low-voltage wide-range input alternating current voltage stabilizer comprises the following steps: before starting up, the carbon brush component stays on the coil close to the farthest end of the outer layer coil winding, after starting up, a power circuit obtains induction voltage through the induction coil to provide power for a control system, an energy storage capacitor in a shutdown reset circuit starts charging, a sampling circuit samples input voltage in real time through the power circuit and transmits the sampling signal to a main control circuit, the main control circuit generates stable reference voltage to provide reference signals for the main control circuit, the main control circuit analyzes the sampling signal in real time and compares the sampling signal with the reference signal, then outputs control signals to a motor driving circuit, a voltage regulating circuit or a protection circuit, when the input voltage is too low, the main control circuit outputs the control signals to the motor driving circuit, the motor driving circuit drives a speed reducing motor to rotate to drive the carbon brush component to move towards the near end coil of the outer layer coil winding and stay on the coil at the proper position, the 220V output line is connected to a 220V first tap through the first voltage regulation controller, the 110V output line is connected to a 110V first tap through the second voltage regulation controller, when the input voltage is too high, the main control circuit outputs a control signal to the motor driving circuit, the motor driving circuit drives the speed reduction motor to rotate, the carbon brush assembly is driven to move towards a far-end coil of the outer-layer coil winding and stop on a coil at a proper position of the outer-layer coil winding, after the carbon brush assembly stops at the farthest-end coil of the outer-layer coil winding, if the input voltage is still increased and is higher than 270V, the main control circuit outputs a control signal to the voltage regulation circuit, the voltage regulation circuit drives the first voltage regulation controller to be connected to the 220V second tap, and drives the second voltage regulation controller to be connected to the 110V second tap, and stable; when the input voltage is abnormal, the main control circuit outputs a control signal to the protection circuit, the protection circuit drives the first output controller and the second output controller to be disconnected and output, after shutdown, the input voltage is 0, the shutdown reset circuit outputs a control signal to the main control circuit, the main control circuit outputs a control signal to the motor driving circuit, the energy storage capacitor discharges to drive the speed reduction motor to rotate, the carbon brush assembly is driven to move towards the far-end coil of the outer-layer coil winding and stop on the farthest-end coil of the outer-layer coil winding, and next startup is waited.
The utility model discloses design the coil number of turns of outer coil winding more than the coil number of turns of inner coil winding, can guarantee when lower input voltage, still can steady voltage output, minimum input voltage can reach 90V or even 50V, has widened the lower limit of input voltage greatly, has broken the bottleneck of ordinary stabiliser minimum input voltage 160V, has realized the low-voltage steady voltage function; meanwhile, the utility model also adds a switching tap on the outer coil winding, which can improve the upper limit of the input voltage, if the upper limit value of the input voltage is improved from 250V to 300V, the stability of the output voltage is ensured when the voltage is reduced; the shutdown reset circuit has the effects that after shutdown, the carbon brush assembly stays on the coil close to the farthest end of the outer-layer coil winding, the input resistance of the voltage stabilizer is ensured to be the maximum value when the voltage stabilizer is started, the startup inrush current can be reduced, and the impact on the voltage stabilizer when the voltage stabilizer is started is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, an outer coil winding, 2, an inner coil winding, 3, an induction coil, 4, a control system, 5, a 220V first tap, 6, a 220V second tap, 7, a 110V first tap, 8, a 110V second tap, 9, a 220V output line, 10, a 110V output line, T, a regulating transformer, TC, a carbon brush assembly, M, a speed reducing motor, J1-1, a first regulating controller, J1-2, a second regulating controller, J2-1, a first output controller, J2-2 and a second output controller.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): referring to fig. 1, an ac voltage stabilizer with low voltage and wide input range comprises a voltage regulating transformer, a carbon brush assembly adapted to a coil winding of the voltage regulating transformer, a speed reducing motor driving the carbon brush assembly, a first voltage regulating controller, an output controller and a control system, wherein the voltage regulating transformer is an auto-transformer, an inner coil winding and an outer coil winding are wound on a high-permeability iron core of the auto-transformer, the inner coil winding and the outer coil winding are connected in series to form the coil winding of the voltage regulating transformer, the ratio of the number of coil turns of the inner coil winding to the number of coil turns of the outer coil winding is 1: 5-6, the carbon brush assembly is adapted to the outer coil winding, a 220V first tap and a 220V second tap are arranged on the outer coil winding, the ratio of the number of coil turns of the 220V first tap to the number of bus turns of the coil winding is 22:25, the number of coil turns of the 220V second tap is 10% less than that of the 220, the 220V first tap and the 220V second tap are connected to a 220V output line through the first voltage regulation controller, a first output controller is arranged on the 220V output line, the control system comprises a power circuit, a shutdown reset circuit, a sampling circuit, a reference circuit, a master control circuit, a motor driving circuit, a voltage regulation circuit and a protection circuit, wherein the shutdown reset circuit comprises an energy storage capacitor, an induction coil of the power circuit is wound on a high-permeability iron core of a voltage regulation transformer, the power circuit is connected to the shutdown reset circuit, the sampling circuit and the reference circuit, the shutdown reset circuit, the sampling circuit and the reference circuit are respectively connected to the master control circuit, the master control circuit is connected to the motor driving circuit, the voltage regulation circuit and the protection circuit, the motor driving circuit is connected to a speed reduction motor, the voltage regulation circuit is connected to the first voltage regulation controller, and the protection. The outer-layer coil winding is further provided with a 110V first tap and a 110V second tap, the ratio of the number of turns of a coil at the 110V first tap to the number of turns of a bus coil of the coil winding is 11:25, the number of turns of the coil at the 110V second tap is 10% less than that of the turns of the coil at the 110V first tap, the 110V first tap and the 110V second tap are connected to a 110V output line through a second voltage regulating controller, a second output controller is arranged on the 110V output line and connected to a voltage regulating circuit, and the second output controller is connected to a protection circuit and linked with the first output controller.
The use method of the low-voltage wide-range input alternating current voltage stabilizer comprises the following steps: before starting up, the carbon brush component stays on the coil close to the farthest end of the outer layer coil winding, after starting up, a power circuit obtains induction voltage through the induction coil to provide power for a control system, an energy storage capacitor in a shutdown reset circuit starts charging, a sampling circuit samples input voltage in real time through the power circuit and transmits the sampling signal to a main control circuit, the main control circuit generates stable reference voltage to provide reference signals for the main control circuit, the main control circuit analyzes the sampling signal in real time and compares the sampling signal with the reference signal, then outputs control signals to a motor driving circuit, a voltage regulating circuit or a protection circuit, when the input voltage is too low, the main control circuit outputs the control signals to the motor driving circuit, the motor driving circuit drives a speed reducing motor to rotate to drive the carbon brush component to move towards the near end coil of the outer layer coil winding and stay on the coil at the proper position, the 220V output line is connected to a 220V first tap through the first voltage regulation controller, the 110V output line is connected to a 110V first tap through the second voltage regulation controller, when the input voltage is too high, the main control circuit outputs a control signal to the motor driving circuit, the motor driving circuit drives the speed reduction motor to rotate, the carbon brush assembly is driven to move towards a far-end coil of the outer-layer coil winding and stop on a coil at a proper position of the outer-layer coil winding, after the carbon brush assembly stops at the farthest-end coil of the outer-layer coil winding, if the input voltage is still increased and is higher than 270V, the main control circuit outputs a control signal to the voltage regulation circuit, the voltage regulation circuit drives the first voltage regulation controller to be connected to the 220V second tap, and drives the second voltage regulation controller to be connected to the 110V second tap, and stable; when the input voltage is abnormal, the main control circuit outputs a control signal to the protection circuit, the protection circuit drives the first output controller and the second output controller to be disconnected and output, after shutdown, the input voltage is 0, the shutdown reset circuit outputs a control signal to the main control circuit, the main control circuit outputs a control signal to the motor driving circuit, the energy storage capacitor discharges to drive the speed reduction motor to rotate, the carbon brush assembly is driven to move towards the far-end coil of the outer-layer coil winding and stop on the farthest-end coil of the outer-layer coil winding, and next startup is waited.
The utility model discloses design the coil number of turns of outer coil winding more than the coil number of turns of inner coil winding, can guarantee when lower input voltage, still can steady voltage output, minimum input voltage can reach 90V or even 50V, has widened the lower limit of input voltage greatly, has broken the bottleneck of ordinary stabiliser minimum input voltage 160V, has realized the low-voltage steady voltage function; meanwhile, the utility model also adds a switching tap on the outer coil winding, which can improve the upper limit of the input voltage, if the upper limit value of the input voltage is improved from 250V to 300V, the stability of the output voltage is ensured when the voltage is reduced; the shutdown reset circuit has the effects that after shutdown, the carbon brush assembly stays on the coil close to the farthest end of the outer-layer coil winding, the input resistance of the voltage stabilizer is ensured to be the maximum value when the voltage stabilizer is started, the startup inrush current can be reduced, and the impact on the voltage stabilizer when the voltage stabilizer is started is reduced.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.
Claims (2)
1. An alternating current voltage stabilizer with low voltage and wide input range comprises a voltage regulating transformer, a carbon brush assembly matched with a coil winding of the voltage regulating transformer, a speed reducing motor for driving the carbon brush assembly, a first voltage regulating controller, an output controller and a control system, and is characterized in that the voltage regulating transformer is an auto-transformer, an inner coil winding and an outer coil winding are wound on a high-permeability iron core of the auto-transformer, the inner coil winding and the outer coil winding are connected in series to form the coil winding of the voltage regulating transformer, the ratio of the number of turns of the inner coil winding to the number of turns of the outer coil winding is 1: 5-6, the carbon brush assembly is matched with the outer coil winding, a 220V first tap and a 220V second tap are arranged on the outer coil winding, the ratio of the number of turns of the coil at the 220V first tap to the number of turns of the bus of the coil winding is 22:25, the number of turns of the coil at the 220V second tap is 10% less than, the 220V first tap and the 220V second tap are connected to a 220V output line through the first voltage regulation controller, a first output controller is arranged on the 220V output line, the control system comprises a power circuit, a shutdown reset circuit, a sampling circuit, a reference circuit, a master control circuit, a motor driving circuit, a voltage regulation circuit and a protection circuit, wherein the shutdown reset circuit comprises an energy storage capacitor, an induction coil of the power circuit is wound on a high-permeability iron core of a voltage regulation transformer, the power circuit is connected to the shutdown reset circuit, the sampling circuit and the reference circuit, the shutdown reset circuit, the sampling circuit and the reference circuit are respectively connected to the master control circuit, the master control circuit is connected to the motor driving circuit, the voltage regulation circuit and the protection circuit, the motor driving circuit is connected to a speed reduction motor, the voltage regulation circuit is connected to the first voltage regulation controller, and the protection.
2. The ac voltage regulator of claim 1, wherein said outer winding has a first 110V tap and a second 110V tap, the ratio of the number of turns of the coil at the first 110V tap to the number of turns of the coil winding is 11:25, the number of turns of the coil at the second 110V tap is 10% less than the number of turns of the coil at the first 110V tap, the first 110V tap and the second 110V tap are connected to a 110V output line via a second voltage regulation controller, the 110V output line has a second output controller, the second voltage regulation controller is connected to the voltage regulation circuit, and the second output controller is connected to the protection circuit and is linked with the first output controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020317900.XU CN211481173U (en) | 2020-03-13 | 2020-03-13 | Low-voltage wide-range input alternating current voltage stabilizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020317900.XU CN211481173U (en) | 2020-03-13 | 2020-03-13 | Low-voltage wide-range input alternating current voltage stabilizer |
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| CN211481173U true CN211481173U (en) | 2020-09-11 |
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| CN202020317900.XU Active CN211481173U (en) | 2020-03-13 | 2020-03-13 | Low-voltage wide-range input alternating current voltage stabilizer |
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