CN219802162U - Power supply phase modulation device - Google Patents
Power supply phase modulation device Download PDFInfo
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- CN219802162U CN219802162U CN202320874142.5U CN202320874142U CN219802162U CN 219802162 U CN219802162 U CN 219802162U CN 202320874142 U CN202320874142 U CN 202320874142U CN 219802162 U CN219802162 U CN 219802162U
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- 238000002955 isolation Methods 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims description 8
- 238000005070 sampling Methods 0.000 abstract description 4
- 230000005856 abnormality Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides a power phase modulation device, including single-phase alternating current power, pass through the power input socket of power cord plug connection with single-phase alternating current power, the power input switch of setting in the power input socket, the phase modulation appearance of being connected with the power input switch, the phase modulation appearance is connected with isolation transformer, isolation transformer is connected with power output contactor, power output contactor still is connected with the power input switch, be provided with drive circuit in the phase modulation appearance, the rectifier circuit of being connected with drive circuit, the contravariant phase modulation control circuit of being connected with rectifier circuit, the output terminal of being connected with contravariant phase modulation control circuit, output terminal is three-phase four-wire alternating current power output terminal. The power supply phase modulation device provided by the utility model can output the alternating current in a three-phase four-wire mode under the condition of input of an alternating current single-phase power supply, and solves the problems of test detection and data sampling of a control loop in a test site under the condition of no three-phase four-wire input.
Description
Technical Field
The utility model relates to the technical field of power supply phase modulation, in particular to a power supply phase modulation device.
Background
The current test instrument device generally adopts an alternating current single-phase 220V input mode, an alternating current single-phase 0-220V output mode or an alternating current single-phase 0-380V output mode; the other mode is that 220/380V input of alternating current three-phase four wires is adopted, and 0-380V output of the alternating current three-phase four wires is adopted; both the two modes are fixed single-phase input single-phase output or three-phase four-wire input three-phase four-wire output, and the problem that under the condition of alternating-current single-phase 220V input, the alternating-current three-phase four-wire output is 0-380V can not be solved;
although the control power supply with different voltage class requirements can be conveniently used when a laboratory is tested, when the laboratory is under the condition of going out construction, a three-phase four-wire loop test is required, and when the laboratory is not provided with the control power supply with three-phase four-wire, the test cannot be performed, so that the test detection and data sampling of the control loop under the condition of no three-phase four-wire input cannot be satisfied.
Disclosure of Invention
The utility model provides a power supply phase modulation device which can output the power supply in an alternating current three-phase four-wire mode under the condition of input of an alternating current single-phase power supply, and solves the problems of test detection and data sampling of a control loop in a test site under the condition of no three-phase four-wire input.
The utility model provides a power phase modulation device, includes single-phase alternating current power, with the power input socket that single-phase alternating current power passes through the power cord plug connection, set up power input switch in the power input socket, with the phase modulation appearance that power input switch is connected, the phase modulation appearance is connected with isolation transformer, isolation transformer with power output contactor is connected, power output contactor still with power input switch connects.
Further, a driving circuit, a rectifying circuit connected with the driving circuit, an inversion phase modulation control circuit connected with the rectifying circuit and an output terminal connected with the inversion phase modulation control circuit are arranged in the phase modulation instrument, the rectifying circuit is connected with an input terminal, the input terminal is connected with a power input switch, and the driving circuit is further connected with an adjustable potentiometer and a starting button.
Further, two movable contacts for controlling the circuit to be electrified, a coil electromagnetic mechanism arranged on the movable contacts and used for closing the two movable contacts, and a spring mechanical mechanism used for supporting the two movable contacts are arranged in the power output contactor, the two movable contacts are respectively connected with a power output end, and the two movable contacts are respectively connected with the spring mechanical mechanism;
the coil electromagnetic mechanism is connected with an output button, the output button is used for controlling the power output contactor, and the power input switch is connected with the output button.
Furthermore, the power input switch is connected with a power detection system, and the power detection system is also connected with the output button and the input terminal.
Further, the output terminal is connected with a filtering system for filtering interference signals, the filtering system is connected with the isolation transformer, and the isolation transformer is connected with the movable contact.
Further, a voltage detection component for detecting voltage abnormality is arranged between the isolation transformer and the movable contact.
Further, an output indicator lamp is arranged in the power supply output contactor, and the output indicator lamp is connected with the movable contact.
Further, a first fuse is arranged between the movable contact and the power output end, and a second fuse is arranged in the power input socket.
The utility model has the following technical effects:
(1) The scheme utilizes the input of an alternating current single-phase power supply, and can realize the output of alternating current three-phase four-wire through the rectification, inversion and phase modulation work of a phase modulator and the voltage regulation and boosting technology of an isolation transformer, thereby supplying power to the power complete equipment;
(2) By the working mode recorded by the scheme, the power supply of the power complete equipment can be realized under the conditions that workers go out for construction and no three-phase four-wire input is carried out on site, so that the test detection and data sampling of a control loop can be carried out;
(3) The output indicator lamp can be lightened when the device works and is used for reminding a worker, so that the worker is prevented from mistakenly touching equipment in work.
Drawings
Fig. 1 is a circuit diagram of the present utility model.
Fig. 2 is a circuit diagram of the present utility model.
Wherein, the reference numerals are as follows: 1. a power input switch; 2. a power detection system; 3. an output button; 4. a power output contactor; 5. outputting an indicator lamp; 6. an input terminal; 7. a driving circuit; 8. a start button; 9. an adjustable potentiometer; 10. an output terminal; 11. a filtering system; 12. an isolation transformer; 13. a voltage detection assembly; 14. a power supply output terminal; 15. a phase modulator.
Detailed Description
The technical scheme of the utility model will be clearly and completely described below with reference to specific embodiments and drawings.
Referring to fig. 1 and 2, a power phase modulation device comprises a single-phase ac power supply, a power input socket connected with the single-phase ac power supply through a power line plug, a power input switch 1 arranged in the power input socket, and a phase modulation instrument 15 connected with the power input switch 1, wherein the phase modulation instrument 15 is connected with an isolation transformer 12, the isolation transformer 12 is connected with a power output contactor 4, and the power output contactor 4 is also connected with the power input switch 1.
Further, a driving circuit 7, a rectifying circuit connected with the driving circuit 7, an inversion phase modulation control circuit connected with the rectifying circuit, and an output terminal 10 connected with the inversion phase modulation control circuit are arranged in the phase modulation instrument 15, the output terminal 10 is a three-phase four-wire alternating current power supply output terminal 14, the rectifying circuit is connected with an input terminal 6, the input terminal 6 is connected with the power supply input switch 1, and the driving circuit 7 is also connected with the adjustable potentiometer 9 and the start button 8.
The power output contactor 4 is internally provided with two movable contacts for controlling the power on of a circuit, a coil electromagnetic mechanism which is arranged on the movable contacts and is used for closing the two movable contacts, and a spring mechanical mechanism for supporting the two movable contacts, wherein the two movable contacts are respectively connected with the power output end 14, and the two movable contacts are respectively connected with the spring mechanical mechanism;
the coil electromagnetic mechanism is connected with an output button 3, the output button 3 is used for controlling a power output contactor 4, and the power input switch 1 is connected with the output button 3.
Further, the power input switch 1 is connected to the power detection system 2, and the power detection system 2 is also connected to the output button 3 and the input terminal 6.
Further, the output terminal 10 is connected to a filter system 11 for filtering an interference signal, the filter system 11 is connected to an isolation transformer 12, and the isolation transformer 12 is connected to the movable contact, so that a boosted current can be transmitted to the movable contact.
Further, a voltage detection component 13 for detecting voltage abnormality is arranged between the isolation transformer 12 and the movable contact, so that voltage can be detected in real time, and workers can timely find out the voltage abnormality and timely take countermeasures.
Further, be provided with output pilot lamp 5 in the power output contactor 4, output pilot lamp 5 is connected with the movable contact, and output pilot lamp 5 can light when this device carries out the work for remind the staff, prevent that the staff from touching the equipment at work by mistake.
Further, a first fuse is arranged between the movable contact and the power output end 14, and a second fuse is arranged in the power input socket, so that the device has a certain protection effect.
The working process of the scheme is as follows:
connecting a single-phase alternating current power supply with a power input socket through a power line plug, wherein a power input switch 1 in the power input socket can control the opening and closing of the power supply, after the power input switch 1 is opened, current passes through a power detection system 2 and is led to an input terminal 6, then a start button 8 is pressed down, a driving circuit 7 drives a phase modulation instrument 15 to work, a rectifying circuit in the phase modulation instrument 15 rectifies the current, then an inversion phase modulation control circuit inverts and phase-modulates the current, an operator can realize inversion phase modulation control by adjusting an adjustable potentiometer 9 connected with the driving circuit 7, and the processed current can be led to an output terminal 10, so that the phase modulation work of the current is completed in the mode;
after the current passes through the output terminal 10, the filtering system 11 filters interference signals in the electric signals, the current after the current enters the isolation transformer 12 through the filtering system 11, the isolation transformer 12 regulates and boosts the current to enable the voltage to meet the voltage required by the power complete equipment, the current is then introduced into the movable contact in the power output contactor 4, the voltage detection assembly 13 detects the change of the current in real time, the output button 3 is pressed down, the coil electromagnetic mechanism is positioned on one of the movable contacts, a magnetic field is generated after the current is introduced, the other movable contact is attracted to move, the two movable contacts are attached, the closing work is completed, after the movable contact is closed, the output indicator lamp 5 is turned on, and the current is introduced into the power output end 14 through the fuse, so that the work of alternating current three-phase four-wire output is completed;
the person skilled in the art can reliably connect the device to the grounding system according to the actual situation, which is possible for the person skilled in the art and will not be described in detail here.
The above-described embodiments are merely preferred embodiments of the present utility model, from which other embodiments may be derived by those skilled in the art without undue burden, and thus the scope of the present utility model is not limited to the above-described embodiments, but is to be accorded the widest scope consistent with the principles and features of the present utility model.
Claims (8)
1. The utility model provides a power phase modulation device, its characterized in that includes single-phase alternating current power, with the power input socket that single-phase alternating current power passes through power cord plug connection, set up power input switch (1) in the power input socket, with phase modulation appearance (15) that power input switch (1) are connected, phase modulation appearance (15) are connected with isolation transformer (12), isolation transformer (12) are connected with power output contactor (4), power output contactor (4) still with power input switch (1).
2. The power supply phase modulation device according to claim 1, wherein a driving circuit (7), a rectifying circuit connected with the driving circuit (7), an inversion phase modulation control circuit connected with the rectifying circuit, and an output terminal (10) connected with the inversion phase modulation control circuit are arranged in the phase modulation device (15), the rectifying circuit is connected with an input terminal (6), the input terminal (6) is connected with the power supply input switch (1), and the driving circuit (7) is also connected with an adjustable potentiometer (9) and a start button (8).
3. A power supply phase modulation device according to claim 2, wherein two movable contacts for controlling the power supply of a circuit, a coil electromagnetic mechanism arranged on the movable contacts and used for closing the two movable contacts, and a spring mechanical mechanism used for supporting the two movable contacts are arranged in the power supply output contactor (4), the two movable contacts are respectively connected with a power supply output end (14), and the two movable contacts are respectively connected with the spring mechanical mechanism;
the coil electromagnetic mechanism is connected with an output button (3), the output button (3) is used for controlling the power output contactor (4), and the power input switch (1) is connected with the output button (3).
4. A power supply phase modulation device according to claim 3, characterized in that the power supply input switch (1) is connected to a power detection system (2), the power detection system (2) being further connected to the output button (3), the input terminal (6).
5. A power supply phase modulation device according to claim 4, characterized in that the output terminal (10) is connected to a filter system (11) for filtering interference signals, the filter system (11) being connected to the isolation transformer (12), the isolation transformer (12) being connected to the movable contact.
6. A power supply phase modulation device according to claim 5, characterized in that a voltage detection assembly (13) for detecting voltage anomalies is arranged between the isolation transformer (12) and the movable contact.
7. A power phase modulation device according to claim 3, wherein an output indicator light (5) is arranged in the power output contactor (4), and the output indicator light (5) is connected with the movable contact.
8. A power phasing device according to claim 3, wherein a first fuse is provided between the movable contact and the power output (14), and a second fuse is provided in the power input socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320874142.5U CN219802162U (en) | 2023-04-19 | 2023-04-19 | Power supply phase modulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320874142.5U CN219802162U (en) | 2023-04-19 | 2023-04-19 | Power supply phase modulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219802162U true CN219802162U (en) | 2023-10-03 |
Family
ID=88153929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320874142.5U Active CN219802162U (en) | 2023-04-19 | 2023-04-19 | Power supply phase modulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219802162U (en) |
-
2023
- 2023-04-19 CN CN202320874142.5U patent/CN219802162U/en active Active
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