CN213484760U - Single-phase power supply voltage regulator - Google Patents
Single-phase power supply voltage regulator Download PDFInfo
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- CN213484760U CN213484760U CN202022883064.4U CN202022883064U CN213484760U CN 213484760 U CN213484760 U CN 213484760U CN 202022883064 U CN202022883064 U CN 202022883064U CN 213484760 U CN213484760 U CN 213484760U
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Abstract
The utility model provides a single-phase power supply voltage regulator, which comprises a main circuit and a control circuit, wherein the main circuit is connected with the control circuit; the main circuit comprises a first fuse, a second fuse, a first alternating current contactor main contact, a second alternating current contactor main contact and a transformer; one end of the first fuse is connected with the L end of the input power supply, the other end of the first fuse is connected with one end of a movable main contact of the first alternating current contactor and one end of a primary side of the transformer respectively, one end of a secondary side of the transformer is connected with the second fuse, the other end of the second fuse is connected with one end of a movable main contact of the second alternating current contactor, and the other end of the movable main contact of the first alternating current contactor and the other end of the movable main contact of the second alternating current contactor are connected with the output end L1 of the power supply voltage regulator. The utility model discloses according to input power supply voltage value and output voltage value automatically regulated output voltage to guarantee like domestic appliance normal even running such as air conditioner, washing machine.
Description
Technical Field
The utility model relates to the technical field of power, especially indicate a single-phase power voltage regulator.
Background
In production and life, in the peak period of power consumption, the condition of power supply voltage reduction can occur, the efficiency of the household appliance is low due to the reduction of the power supply voltage, and the household appliance can not work normally even when the voltage is too low. For example, the compressor voltage of the air conditioner is forced to stop when the voltage is lower than 170V, and the daylight lamp is not glittered when the voltage is lower than 180V.
Disclosure of Invention
To the not enough that exists among the above-mentioned background art, the utility model provides a single phase power supply voltage regulator can be according to input mains voltage value and output voltage value automatically regulated output voltage to guarantee like domestic appliance normal even running such as air conditioner, washing machine, solved among the prior art domestic appliance when the power consumption peak period, because mains voltage is on the low side and can not normally work's technical problem.
The technical scheme of the utility model is realized like this:
a single-phase power supply voltage regulator comprises a main circuit and a control circuit, wherein the main circuit is connected with the control circuit; the main circuit comprises a first fuse FA1, a second fuse FA2, a movable main contact of a first alternating current contactor QA1, a movable main contact of a second alternating current contactor QA2 and a transformer TA 1; one end of the first fuse FA1 is connected with the L end of an input power supply, the other end of the first fuse FA1 is respectively connected with one end of a movable main contact of a first alternating current contactor QA1 and one end of a primary side of a transformer TA1, one end of a secondary side of the transformer TA1 is connected with one end of a second fuse FA2, the other end of the second fuse is connected with one end of a movable main contact of a second alternating current contactor QA2, and the other end of the movable main contact of the first alternating current contactor QA1 and the other end of the movable main contact of the second alternating current contactor QA2 are both connected with an output end L1 of a power supply voltage regulator; the other end of the primary side of the transformer TA1 and the other end of the secondary side thereof are connected to the input power supply N terminal.
The control circuit comprises an input voltmeter PG1, an output voltmeter PG2, a self-locking button SF1, a potentiometer RA1, an undervoltage relay KF1, an overvoltage relay KF2, an intermediate relay KF3, a coil of a first alternating current contactor QA1, a dynamic-break auxiliary contact of the coil, and a coil of a second alternating current contactor QA 2; one end of the input voltmeter PG1 is connected with the other end of the first fuse FA1, and the other end of the input voltmeter PG1 is connected with the N-end of the input power supply; one end of the self-locking button SF1 is connected with the other end of the first fuse FA1, the other end of the self-locking button SF1 is connected with one end of a movable contact of the undervoltage relay KF1 and one end of a movable contact of the undervoltage relay KF1 respectively, the other end of the movable contact of the undervoltage relay KF1 is connected with one end of a coil of the first alternating current contactor QA1, and the other end of the coil of the first alternating current contactor QA1 is connected with the N end of the input power supply. The other end of the break contact of the under-voltage relay KF1 is connected with one end of the break contact of the intermediate relay KF3, the other end of the break contact of the intermediate relay KF3 is connected with one end of the break auxiliary contact of the first AC contactor QA1, the other end of the break auxiliary contact of the first AC contactor QA1 is connected with one end of the coil of the second AC contactor QA2, the other end of the coil of the second AC contactor QA2 is connected with the N end of the input power supply, and the break contact of the intermediate relay KF3 is connected with the two ends of the break contact of the under-voltage relay KF1 in parallel; two ends of a dynamic break contact of the intermediate relay KF3 are respectively connected with the other end of the first fuse FA1 and one end of the potentiometer RA1, the other end of the potentiometer RA1 is connected with one end of a coil of the undervoltage relay KF1, and the other end of the coil of the undervoltage relay KF1 is connected with the N end of the input power supply; one end of a coil of the overvoltage relay KF2 and one end of a break contact of the overvoltage relay KF2 are connected with an L1 end of the output power supply voltage regulator. The other end of the break contact of the overvoltage relay KF2 is connected with one end of a coil of the intermediate relay KF3, the other end of the coil of the intermediate relay KF3 and the other end of the coil of the overvoltage relay KF2 are connected with the N end of an input power supply, and an output voltmeter PG2 is connected between the L1 end of the output power supply voltage regulator and the N end of the input power supply.
The rated voltage of the primary side of the transformer TA1 is 220V, the voltage of the secondary side of the transformer TA1 is 242V, the setting voltage of the coil of the under-voltage relay KF1 is 200V, the setting voltage of the over-voltage relay KF2 is 235V, the rated voltage of the intermediate relay KF3 is 220V, the rated voltages of the coils of the first alternating current contactor QA1 and the second alternating current contactor QA2 are both 220V, and the rated voltages of the input voltmeter PG1 and the output voltmeter PG2 are both 220V.
The beneficial effect that this technical scheme can produce: the utility model discloses can be according to input power supply voltage value and output voltage value automatically regulated output voltage, make the voltage that domestic appliance such as air conditioner obtained in the standard range of national single-phase voltage, domestic appliance still can normally work.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a circuit diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a single-phase voltage regulator, which has an automatic voltage boosting function when the power voltage is lower than a set value, and has an automatic return to a non-voltage boosting state when the output value is higher than the set value. The single-phase voltage regulator comprises a main circuit and a control circuit, wherein the main circuit is connected with the control circuit; the main circuit comprises a first fuse FA1, a second fuse FA2, a first AC contactor QA1, a second AC contactor QA2 and a transformer TA 1; the input end of the first fuse FA1 is connected with the L end of an input power supply, the output end of the first fuse FA1 is respectively connected with the movable main contact of a first alternating current contactor QA1 and the primary side of a transformer TA1, the secondary side of the transformer TA1 is connected with the movable main contact of a second alternating current contactor QA2, and the movable main contact of the first alternating current contactor QA1 and the movable main contact of the second alternating current contactor QA2 are both connected with the L1 end of an output power supply; the coil of the first alternating current contactor QA1, the coil of the second alternating current contactor QA2 and the grounding end of the transformer TA1 are all connected with the N end of the input power supply; the output end of the first fuse FA1, the coil of the first AC contactor QA1 and the coil of the second AC contactor QA2 are all connected with a control circuit.
The control circuit comprises an input voltmeter PG1, an input voltmeter PG2, a self-locking button SF1, a potentiometer RA1, an undervoltage relay KF1, an overvoltage relay KF2 and an intermediate relay KF 3; one end of the input voltmeter PG1 is connected with the output end of the first fuse FA1, and the other end of the input voltmeter PG1 is connected with the N-end of the input power supply; one end of the self-locking button SF1 is connected with the output end of a first fuse FA1, the other end of the self-locking button SF1 is respectively connected with a dynamic contact of an undervoltage relay KF1 and a dynamic contact of the undervoltage relay KF1, and a dynamic contact of the undervoltage relay KF1 is connected with a coil of a first alternating current contactor QA 1; the dynamic breaking contact of the under-voltage relay KF1 is connected with the dynamic breaking contact of the intermediate relay KF3, the dynamic breaking contact of the intermediate relay KF3 is connected with the dynamic breaking auxiliary contact of the first AC contactor QA1, and the dynamic breaking auxiliary contact of the first AC contactor QA1 is connected with the coil of the second AC contactor QA 2; the movable contact of the intermediate relay KF3 is connected in parallel at two ends of the movable contact of the undervoltage relay KF 1; the dynamic-breaking contact of the intermediate relay KF3 is respectively connected with the output end of the first fuse FA1 and one end of the potentiometer RA1, the other end of the potentiometer RA1 is connected with the coil of the undervoltage relay KF1, and the coil of the undervoltage relay KF1 is connected with the N end of the input power supply; the coil of overvoltage relay KF2, the dynamic break contact of overvoltage relay KF2 all are connected with output power's L1 end, and overvoltage relay KF 2's dynamic break contact is connected with intermediate relay KF 3's coil, and intermediate relay KF 3's coil, overvoltage relay KF 2's coil all are connected with input power's N end, be connected with input voltmeter PG2 between output power's L1 end and the N end of input power.
The rated voltage of the primary side of the transformer TA1 is 220V, the voltage of the secondary side of the transformer TA1 is 242V, the rated voltage of the coil of the under-voltage relay KF1 is 200V, the rated voltage of the overvoltage relay KF2 is 235V, the rated voltage of the intermediate relay KF3 is 220V, and the rated voltages of the coils of the first alternating current contactor QA1 and the second alternating current contactor QA2 are both 220V.
When the single-phase voltage regulator is connected with a power supply, the self-locking button SF1 is pressed, so that the situation that a coil of the second alternating-current contactor QA2 is instantly electrified, a movable main contact of the second alternating-current contactor QA2 is switched on, and the single-phase voltage regulator outputs instant high voltage and harms a load electrical appliance can be avoided.
The working principle is as follows: during the use, the access power supply, press self-locking button SF1, when input mains voltage is higher than the setting value, when assuming that the setting value is 200V, undervoltage relay KF 1's coil is electrified, undervoltage relay KF 1's dynamic close contact is closed, undervoltage relay KF 1's dynamic break contact disconnection, first ac contactor QA 1's coil is electrified, first ac contactor QA 1's dynamic close main contact is closed, second ac contactor QA 2's coil is not electrified, its dynamic close main contact disconnection, mains voltage is output from transformer TA 1's once side, single-phase mains voltage regulator output voltage is higher than 200V. When the input power supply voltage is reduced to be less than or equal to the set value 200V for some reason, the coil of the undervoltage relay KF1 loses power, the movable contact of the undervoltage relay KF1 is disconnected, the movable contact of the undervoltage relay KF1 is closed, the coil of the first alternating current contactor QA1 cannot be powered, the coil of the second alternating current contactor QA2 is powered, the movable main contact of the second alternating current contactor QA2 is closed, the voltage is output from the secondary side of the transformer TA1, and single-phase power is outputThe output voltage of the source voltage regulator is 1.1 times of the value of the input voltage. The national mains supply voltage standard range is 220V +220V
7% (i.e. 235.4V), 220V-220V
10% (i.e., 198V). If the power voltage is 190V and lower than 198V, the output voltage of the single-phase power voltage regulator is 1.1 times of the input voltage value, namely 209V, and is within the range of national mains voltage standard. If the power voltage is increased after being reduced, when the output voltage of the single-phase power voltage regulator is increased to be more than or equal to 235V, the coil of the overvoltage relay KF2 is electrified, the closed moving contact of the overvoltage relay KF2 enables the coil of the intermediate relay KF3 to be electrified, the open moving contact of the intermediate relay KF3 is disconnected, the coil of the undervoltage relay KF2 is powered off, the undervoltage relay KF2 is reset, the closed moving contact of the intermediate relay KF3 is closed, the coil of the second AC contactor QA2 is not electrified, the open moving contact of the second AC contactor QA2 is disconnected, the coil of the first AC contactor QA1 is electrified, the closed moving main contact of the first AC contactor QA1 is closed, the voltage is output from the primary side of the transformer TA1, the output voltage of the single-phase voltage regulator is about 214V, and the fluctuation range allowed by the output voltage is met.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A single-phase power supply voltage regulator is characterized by comprising a main circuit and a control circuit, wherein the main circuit is connected with the control circuit; the main circuit comprises a first fuse FA1, a second fuse FA2, a movable main contact of a first alternating current contactor QA1, a movable main contact of a second alternating current contactor QA2 and a transformer TA 1; one end of the first fuse FA1 is connected with the L end of an input power supply, the other end of the first fuse FA1 is respectively connected with one end of a movable main contact of a first alternating current contactor QA1 and one end of a primary side of a transformer TA1, one end of a secondary side of the transformer TA1 is connected with one end of a second fuse FA2, the other end of the second fuse is connected with one end of a movable main contact of a second alternating current contactor QA2, and the other end of the movable main contact of the first alternating current contactor QA1 and the other end of the movable main contact of the second alternating current contactor QA2 are both connected with an output end L1 of a power supply voltage regulator; the other end of the primary side of the transformer TA1 and the other end of the secondary side thereof are connected to the input power supply N terminal.
2. The single-phase power supply voltage regulator of claim 1, wherein the control circuit comprises an input voltmeter PG1, an output voltmeter PG2, a self-lock button SF1, a potentiometer RA1, an undervoltage relay KF1, an overvoltage relay KF2 and an intermediate relay KF3, a coil of a first ac contactor QA1 and its dynamic-break auxiliary contacts, a coil of a second ac contactor QA 2; one end of the input voltmeter PG1 is connected with the other end of the first fuse FA1, and the other end of the input voltmeter PG1 is connected with the N-end of the input power supply; one end of the self-locking button SF1 is connected with the other end of the first fuse FA1, the other end of the self-locking button SF1 is respectively connected with one end of a movable contact of the undervoltage relay KF1 and one end of a movable contact of the undervoltage relay KF1, the other end of the movable contact of the undervoltage relay KF1 is connected with one end of a coil of a first alternating current contactor QA1, and the other end of the coil of the first alternating current contactor QA1 is connected with the N end of an input power supply; the other end of the break contact of the under-voltage relay KF1 is connected with one end of the break contact of the intermediate relay KF3, the other end of the break contact of the intermediate relay KF3 is connected with one end of the break auxiliary contact of the first AC contactor QA1, the other end of the break auxiliary contact of the first AC contactor QA1 is connected with one end of the coil of the second AC contactor QA2, the other end of the coil of the second AC contactor QA2 is connected with the N end of the input power supply, and the break contact of the intermediate relay KF3 is connected with the two ends of the break contact of the under-voltage relay KF1 in parallel; two ends of a dynamic break contact of the intermediate relay KF3 are respectively connected with the other end of the first fuse FA1 and one end of the potentiometer RA1, the other end of the potentiometer RA1 is connected with one end of a coil of the undervoltage relay KF1, and the other end of the coil of the undervoltage relay KF1 is connected with the N end of the input power supply; one end of a coil of the overvoltage relay KF2 and one end of a break contact of the overvoltage relay KF2 are connected with an L1 end of the output power supply voltage regulator; the other end of the break contact of the overvoltage relay KF2 is connected with one end of a coil of the intermediate relay KF3, the other end of the coil of the intermediate relay KF3 and the other end of the coil of the overvoltage relay KF2 are connected with the N end of an input power supply, and an output voltmeter PG2 is connected between the L1 end of the output power supply voltage regulator and the N end of the input power supply.
3. The single-phase power supply voltage regulator of claim 2, wherein the primary side voltage rating of the transformer TA1 is 220V, the secondary side voltage of the transformer TA1 is 242V, the coil setting voltage of the undervoltage relay KF1 is 200V, the setting voltage of the overvoltage relay KF2 is 235V, the voltage rating of the intermediate relay KF3 is 220V, the voltage ratings of the coils of the first ac contactor QA1 and the second ac contactor QA2 are both 220V, and the voltage ratings of the input voltage meter PG1 and the output voltage meter PG2 are both 220V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022883064.4U CN213484760U (en) | 2020-12-05 | 2020-12-05 | Single-phase power supply voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022883064.4U CN213484760U (en) | 2020-12-05 | 2020-12-05 | Single-phase power supply voltage regulator |
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| Publication Number | Publication Date |
|---|---|
| CN213484760U true CN213484760U (en) | 2021-06-18 |
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ID=76357516
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022883064.4U Active CN213484760U (en) | 2020-12-05 | 2020-12-05 | Single-phase power supply voltage regulator |
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|---|---|
| CN (1) | CN213484760U (en) |
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2020
- 2020-12-05 CN CN202022883064.4U patent/CN213484760U/en active Active
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