CN220652979U - Zero live wire line preface auto-change over device - Google Patents
Zero live wire line preface auto-change over device Download PDFInfo
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- CN220652979U CN220652979U CN202322075452.3U CN202322075452U CN220652979U CN 220652979 U CN220652979 U CN 220652979U CN 202322075452 U CN202322075452 U CN 202322075452U CN 220652979 U CN220652979 U CN 220652979U
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- 238000001514 detection method Methods 0.000 claims abstract description 39
- 230000003139 buffering effect Effects 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims 5
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 238000004891 communication Methods 0.000 description 4
- 238000012795 verification Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
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Abstract
The utility model discloses a zero-live wire line sequence switching device, which belongs to the technical field of circuit protection devices and comprises a zero-live wire detection module, a power supply module, a control module, a driving plate, a relay and a mechanical interlocking contactor. The utility model detects and judges the positive sequence or the negative sequence of the zero line and the live line through the zero-live line detection module, sends detection information to the control module, analyzes and judges the detection information through the control module, sends a control command to the driving board, and the driving board sends an isolated driving signal to the relay through photoelectric conversion, and the control signal is connected to the mechanical interlocking contactor through electromagnetic conversion of the relay, so that the positive sequence contactor is attracted when the zero line is positive, and 220V alternating current is positive sequence output to the load equipment; when the zero and live wire is in reverse sequence, the reverse sequence contactor is attracted to output 220V alternating current in reverse sequence, and the 220V alternating current is just in positive sequence on load equipment.
Description
Technical Field
The utility model belongs to the technical field of circuit protection devices, and particularly relates to a zero-live line sequence switching device.
Background
The situation that zero-fire line sequence is reversed frequently occurs in part of communication machine rooms of the communication profession, particularly the communication machine room with single-phase power supply provided by a commercial power grid is most outstanding, the nature of the problems belongs to the fact that in the equipment overhaul work of the power supply and distribution profession, the power distribution network cannot be accessed at will according to the line sequence specification of the power supply and distribution, the power distribution line sequence is changed at will, and the problem that cannot be solved is brought to the communication profession.
The utility power input end is composed of zero and live wires, the zero line is well known to be grounded and not electrified, the live wires are electrified to the ground, and if the zero and live wires are reversely input into the electric appliance, the situation of electric leakage is easy to generate.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the zero-live wire sequence switching device capable of automatically switching the zero-live wires.
The technical scheme adopted for solving the technical problems is as follows: the device comprises a zero fire wire detection module, a power supply module, a control module, a driving plate, a relay and a mechanical interlocking contactor; the zero and live wire detection module is used for detecting and judging the positive and negative sequences of the zero wire and the live wire; the zero and live wire detection module is connected with the control module and is used for sending detection information to the control module; the control module is connected with the driving plate, is used for analyzing and judging the detection information, sending a control command to the driving plate, and is also used for feeding back the information of the execution result of the mechanical interlocking contactor to the zero-live wire detection module, comparing the information with preset information in the control module and ensuring the correctness of the execution result; the driving board is connected with the relay, and is used for driving and controlling the action of the relay after buffering and amplifying the control command, and meanwhile, the control module is effectively isolated from the relay, so that the interference of the action current of the relay on digital logic signals on the control module is avoided; the relay is connected with the mechanical interlocking contactor and is used for converting a control command into an alternating current control signal of the mechanical interlocking contactor and isolating the alternating current control signal from a direct current driving signal on the driving board; the mechanical interlocking contactor is used for realizing the forward connection or reverse connection of the zero line and the fire wire of the 220V power supply.
Furthermore, the model of the zero and live wire detection module is C2000-A2-CDD6060-CAX.
Further, the model of the control module is arduino-uno-r3.
Further, the model of the mechanical interlocking contactor is GSC1-50N.
Further, the model of the driving plate is 4relay modules.
Further, the switching box also comprises a power module, wherein the power module is respectively connected with the control module and the driving plate and is used for supplying power for the control module and the driving plate.
The beneficial effects of the utility model are as follows: (1) The utility model adopts a zero-live wire detection module to detect and judge the positive sequence or the negative sequence of a zero wire and a live wire, sends detection information to a control module, analyzes and judges the detection information through the control module, sends a control command to a driving board, and the driving board sends an isolated driving signal to a relay through photoelectric conversion, and the control signal is connected to a mechanical interlocking contactor through electromagnetic conversion of the relay, so that the positive sequence contactor is attracted when the zero-live wire is in positive sequence, and outputs 220V alternating current to load equipment in positive sequence; when the zero and live wire is in reverse sequence, the reverse sequence contactor is attracted to output 220V alternating current in reverse sequence, and the 220V alternating current is just in positive sequence on load equipment.
(2) After the execution of the mechanical interlocking contactor is finished, the zero-live wire detection module detects the zero-live wire at the output end of the zero-live wire line sequence switching device, detection information is sent to the control module, and the control module compares the sent detection information with preset information in a memory on the control module to verify the correctness of an execution result.
Drawings
Fig. 1 is a schematic block diagram of one embodiment of the interior of the zero line sequence switching apparatus of the present utility model.
Reference numerals: 1. a zero firing line detection module; 2. a power module; 3. a control module; 4. a driving plate; 5. a relay; 6. mechanically interlocking the contactors.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1, the zero-live line sequence switching device of the present embodiment is formed by connecting a switching box, a zero-live line detection module 1, a power supply module 2, a control module 3, a driving board 4, a relay 5 and a mechanical interlocking contactor 6.
The zero-live wire detection module 1 is used for detecting and judging positive and negative sequences of zero wires and live wires, and the model of the zero-live wire detection module 1 is C2000-A2-CDD6060-CAX. The zero line detection module 1 is connected with the control module 3, and the model of the control module 3 is arduino-uno-r3. The detection information is sent to the control module 3, the control module 3 is connected with the driving board 4, and the model of the driving board 4 is 4relay modules. The control module 3 is used for analyzing and judging the detection information, sending a control command to the drive board 4, and the control module 3 is simultaneously used for feeding back the information of the execution result of the mechanical interlocking contactor 6 to the zero-live wire detection module 1, comparing with the preset information in the control module 3, and ensuring the correctness of the execution result. The driving board 4 is connected with the relay 5, the driving board 4 is used for driving and controlling the action of the relay 5 after buffering and amplifying the control command, the driving board 4 effectively isolates the control module 3 from the relay 5, and the interference of the action current of the relay 5 on digital logic signals on the control module 3 is avoided. The relay 5 is connected with the mechanical interlocking contactor 6, the model of the mechanical interlocking contactor 6 is GSC1-50N, and the relay 5 is used for converting a control command into a 220V alternating current control signal of the mechanical interlocking contactor 6 and isolating the 220V alternating current control signal and a 12V direct current driving signal on the driving board 4. The mechanical interlocking contactor 6 is used for realizing the forward connection or reverse connection of the zero line and the fire line of the 220V power supply.
The switching box also comprises a power supply module 2, wherein the power supply module 2 is respectively connected with the control module 3 and the driving plate 4 and is used for supplying power to the control module 3 and the driving plate 4.
The working principle of this embodiment is as follows, (1) zero live wire positive sequence: the zero line and live line positive sequence is detected and judged by the zero line detection module 1, detection information is sent to the control module 3, analysis and judgment are carried out through the control module 3, a control command is sent to the driving board 4, the driving board 4 sends an isolated driving signal to the relay 5 through photoelectric conversion, the control signal is connected to the mechanical interlocking contactor 6 through electromagnetic conversion of the relay 5, the positive sequence contactor is attracted during the zero line positive sequence, and 220V alternating current positive sequence is output to load equipment.
(3) Reverse sequence of zero firing line: the zero line and live line reverse sequence is detected and judged by the zero line detection module 1, detection information is sent to the control module 3, analysis and judgment are carried out through the control module 3, a control command is sent to the driving board 4, the driving board 4 sends an isolated driving signal to the relay 5 through photoelectric conversion, the control signal is connected into a contactor control coil reversely connected with the mechanical interlocking contactor 6 through electromagnetic conversion of the relay 5, the reversely connected contactor is attracted, 220V alternating current is output in reverse sequence, and the contactor is just positive sequence on load equipment.
(4) Feedback verification: after the execution of the mechanical interlocking contactor 6 is completed, the zero and fire wire detection module 1 detects the zero and fire wire at the output end of the zero and fire wire line sequence switching device, the detection information is sent to the control module 3, the control module 3 compares the sent detection information with preset information in a memory on the control module 3, and the correctness of the execution result is verified.
If the verification result is correct, continuing to maintain the existing control command; if the verification result is abnormal, the control module 3 re-analyzes and judges, and re-sends out a control command; if the control module 3 repeats the above-described process three times, and the verification result is still abnormal, the mechanical interlock contactor 6 opens all the main contacts, i.e., the output of 220V ac power.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model.
Claims (6)
1. A zero live wire line preface auto-change over device, its characterized in that: the device comprises a zero and live wire detection module (1), a power supply module (2), a control module (3), a drive board (4), a relay (5) and a mechanical interlocking contactor (6);
the zero and live wire detection module (1) is used for detecting and judging the positive and negative sequences of the zero wire and the live wire;
the zero and live wire detection module (1) is connected with the control module (3) and is used for sending detection information to the control module (3);
the control module (3) is connected with the driving board (4), the control module (3) is used for analyzing and judging detection information, sending a control command to the driving board (4), and the control module (3) is simultaneously used for feeding back information of an execution result of the mechanical interlocking contactor (6) to the zero-live wire detection module (1) and comparing the information with preset information in the control module (3) to ensure the accuracy of the execution result;
the driving board (4) is connected with the relay (5), the driving board (4) is used for buffering and amplifying the control command and then driving and controlling the relay (5) to act, and meanwhile, the control module (3) is effectively isolated from the relay (5), so that the interference of the action current of the relay (5) on digital logic signals on the control module (3) is avoided;
the relay (5) is connected with the mechanical interlocking contactor (6), and the relay (5) is used for converting a control command into an alternating current control signal of the mechanical interlocking contactor (6) and isolating the alternating current control signal and a direct current driving signal on the driving board (4);
the mechanical interlocking contactor (6) is used for realizing the forward connection or reverse connection of the zero line and the fire line of the 220V power supply.
2. The neutral wire sequence switching apparatus as set forth in claim 1, wherein: the model of the zero and live wire detection module (1) is C2000-A2-CDD6060-CAX.
3. The neutral wire sequence switching apparatus as set forth in claim 1, wherein: the model of the control module (3) is arduino-uno-r3.
4. The neutral wire sequence switching apparatus as set forth in claim 1, wherein: the model of the mechanical interlocking contactor (6) is GSC1-50N.
5. The neutral wire sequence switching apparatus as set forth in claim 1, wherein: the model of the driving plate (4) is 4relay modules.
6. The neutral wire sequence switching apparatus as set forth in claim 1, wherein: the switching box also comprises a power supply module (2), wherein the power supply module (2) is respectively connected with the control module (3) and the driving plate (4) and is used for supplying power to the control module (3) and the driving plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322075452.3U CN220652979U (en) | 2023-08-03 | 2023-08-03 | Zero live wire line preface auto-change over device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322075452.3U CN220652979U (en) | 2023-08-03 | 2023-08-03 | Zero live wire line preface auto-change over device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220652979U true CN220652979U (en) | 2024-03-22 |
Family
ID=90295728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322075452.3U Active CN220652979U (en) | 2023-08-03 | 2023-08-03 | Zero live wire line preface auto-change over device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220652979U (en) |
-
2023
- 2023-08-03 CN CN202322075452.3U patent/CN220652979U/en active Active
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