CN215990310U - A dual power supply automatic switching device - Google Patents
A dual power supply automatic switching device Download PDFInfo
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- CN215990310U CN215990310U CN202122237082.XU CN202122237082U CN215990310U CN 215990310 U CN215990310 U CN 215990310U CN 202122237082 U CN202122237082 U CN 202122237082U CN 215990310 U CN215990310 U CN 215990310U
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Abstract
The utility model discloses a dual-power automatic switching device, which relates to the field of power switching, and comprises: the alternating current power distribution unit is used for automatically switching and outputting 220V alternating current to supply to the direct current power distribution module; the direct current distribution unit is used for converting 220V alternating current into four paths of direct current of-48V/10A for output; the direct current power distribution unit comprises a first module and a second module; compared with the prior art, the utility model has the beneficial effects that: aiming at the defects and shortcomings of a traditional 48V communication power supply with only one path of alternating current input, the dual-power automatic switching device designed by the utility model has the advantages that two paths of alternating current 220V are input simultaneously and are mutually backed up, when one path of alternating current is in power failure or has a fault, the other path of alternating current is input with zero switching time and enters a power supply mode, stable 48V voltage output is provided, other communication equipment can normally run, therefore, the economic loss and the workload of maintenance personnel caused by power failure or fault are reduced, and the stability of the whole communication network is improved.
Description
Technical Field
The utility model relates to the field of power supply switching, in particular to a dual-power automatic switching device.
Background
The embedded power supply is embedded in an integrated communication cabinet as the name implies, provides power supply equipment with direct current basic electric energy for communication and data equipment in the same cabinet, and has certain universality. Generally, the input of the embedded power supply is 220V AC, and the output is 48V DC or +20V DC, which is a primary power supply device.
The existing embedded 48V communication power supply only has one path of alternating current 220V input, and when the alternating current is powered off or fails, equipment is powered off, other communication equipment cannot work normally, and a communication system is paralyzed, so that great economic loss is caused, and manpower resources for maintenance and workload of maintenance personnel are increased.
SUMMERY OF THE UTILITY MODEL
The present invention provides a dual power source automatic switching device to solve the problems in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme:
a dual power automatic switching device comprising:
the alternating current power distribution unit is used for automatically switching and outputting 220V alternating current to supply to the direct current power distribution module;
the direct current distribution unit is used for converting 220V alternating current into four paths of direct current of-48V/10A for output;
the direct current power distribution unit comprises a first module and a second module; the first module and the second module convert 220V alternating current into-48V/10A direct current;
the AC power distribution unit includes:
the first power supply module is used for supplying 220V alternating current to the first module;
the second power supply module is used for supplying 220V alternating current to the second module;
the voltage switching module is used for supplying 220V alternating current to the first module and the second module when any one of the first power supply module and the second power supply module is powered off;
the first power supply module is connected with the voltage switching module, and the second power supply module is connected with the voltage switching module.
As a still further scheme of the utility model: one end of the output end of the first module is connected with one end of the output end of the second module, the other end of the output end of the first module is connected with the other end of the output end of the second module, and one end of the output end of the first module is connected with the other end of the output end of the first module through an LDD (light-emitting diode) indicator lamp.
As a still further scheme of the utility model: the first power supply module comprises a live wire L1, a neutral wire N1, a switch S1, a relay KM1-A1-A2, a switch KM1 and a fuse 1FU1, wherein the first end of the switch S1 is connected with the live wire L1, the second end of the switch S1 is connected with the neutral wire N1, the third end of the switch S1 is connected with the fuse 1FU1 and the first end of the switch KM1, the fourth end of the switch S1 is connected with one end of the relay KM1-A1-A2 and the second end of the switch KM1, the other end of the relay KM1-A1-A2 is connected with the other end of the fuse 1FU1, and the third end and the fourth end of the switch KM1 are connected with a first module.
As a still further scheme of the utility model: the second power supply module comprises a live wire L2, a neutral wire N2, a switch S2, a fuse 2FU1, a relay KM2-A1-A2 and a switch KM2, wherein the first end of the switch S2 is connected with the live wire L2, the second end of the switch S2 is connected with the neutral wire N2, the third end of the switch S2 is connected with the fuse 2FU1 and the first end of the switch KM2, the fourth end of the switch S2 is connected with one end of the relay KM2-A1-A2 and the second end of the switch KM2, the other end of the relay KM2-A1-A2 is connected with the other end of the fuse 2FU1, and the third end and the fourth end of the switch KM2 are connected with the second module.
As a still further scheme of the utility model: the voltage switching module comprises a fuse 1FU2, a switch KM2-21-22, a switch KM2-61-62, a relay KM3-A1-A2, a switch KM3, a fuse 2FU2, a switch KM1-21-22 and a switch KM1-61-62, one end of the fuse 1FU2 is connected with one end of a switch KM2-21-22, the other end of the switch KM2-21-22 is connected with one end of a relay KM3-A1-A2 and one end of a switch KM1-21-22, the other end of the switch KM1-21-22 is connected with the fuse 2FU2, the other end of the relay KM3-A1-A2 is connected with the switches KM2-61-62 and the relays KM1-61-62, the first end and the second end of the switch KM3 are connected with a first module, and the third end and the fourth end of the switch KM3 are connected with a second module.
Compared with the prior art, the utility model has the beneficial effects that: aiming at the defects and shortcomings of a traditional 48V communication power supply with only one path of alternating current input, the dual-power automatic switching device designed by the utility model has the advantages that two paths of alternating current 220V are input simultaneously and are mutually backed up, when one path of alternating current is in power failure or has a fault, the other path of alternating current is input with zero switching time and enters a power supply mode, stable 48V voltage output is provided, other communication equipment can normally run, therefore, the economic loss and the workload of maintenance personnel caused by power failure or fault are reduced, and the stability of the whole communication network is improved.
Drawings
Fig. 1 is a schematic diagram of a dual power automatic switching device.
Fig. 2 is a panel layout diagram of a dual power automatic switching device.
Fig. 3 is a user wiring diagram of a dual power automatic switching device.
Fig. 4 is a wiring diagram of a user terminal of the dual power automatic switching device.
Fig. 5 is an electrical diagram of a dual power automatic switching device.
Fig. 6 is an electrical diagram of an ac power distribution unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1 and fig. 2, an automatic dual power switching device includes:
the alternating current power distribution unit is used for automatically switching and outputting 220V alternating current to supply to the direct current power distribution module;
the direct current distribution unit is used for converting 220V alternating current into four paths of direct current of-48V/10A for output;
the direct current power distribution unit comprises a first module and a second module; the first module and the second module convert 220V alternating current into-48V/10A direct current;
the AC power distribution unit includes:
the first power supply module is used for supplying 220V alternating current to the first module;
the second power supply module is used for supplying 220V alternating current to the second module;
the voltage switching module is used for supplying 220V alternating current to the first module and the second module when any one of the first power supply module and the second power supply module is powered off;
the first power supply module is connected with the voltage switching module, and the second power supply module is connected with the voltage switching module.
In a specific embodiment: referring to fig. 2, 3 and 4, fig. 2 shows a state in which current supply can be connected through an ac indicator light and a dc indicator light, and fig. 3 and 4 facilitate user operation by connecting wires according to a wire connection indication.
In this embodiment: referring to fig. 5, one end of the output terminal of the first module is connected to one end of the output terminal of the second module, the other end of the output terminal of the first module is connected to the other end of the output terminal of the second module, and one end of the output terminal of the first module is connected to the other end of the output terminal of the first module through the LDD indicator.
The indicator light LDD is a DC indicator light, not shown in the AC indicator light circuit. The first module and the second module are internally provided with voltage conversion modules, 220V alternating current is converted into-48V direct current (which belongs to simple voltage conversion, and detailed description is not given in the scheme), and the output ends of the first module and the second module are connected, so that one of the first module and the second module is in a power-off state, and the other one of the first module and the second module can still maintain 4-48V/10A power supply.
In this embodiment: referring to fig. 5 and 6, the first power supply module includes a live line L1, a neutral line N1, a switch S1, a relay KM1-a1-a2, a switch KM1, and a fuse 1FU1, a first end of the switch S1 is connected to the live line L1, a second end of the switch S1 is connected to the neutral line N1, a third end of the switch S1 is connected to the first ends of the fuse 1FU1 and the switch KM1, a fourth end of the switch S1 is connected to one end of the relay KM1-a1-a2 and a second end of the switch KM1, the other end of the relay KM1-a1-a2 is connected to the other end of the fuse 1FU1, and a third end and a fourth end of the switch KM1 are connected to the first module.
The switch S1 is closed at the beginning, so that the relay KM1-A1-A2 is electrified to control the switch KM1 to be closed, and the relay KM1-21-21 and the relay KM1-61-62 to be bounced open, so that 220V alternating current is supplied to the first module by the live wire L1 and the zero wire N1.
In this embodiment: referring to fig. 5 and 6, the second power supply module includes a live line L2, a neutral line N2, a switch S2, a fuse 2FU1, a relay KM2-a1-a2, and a switch KM2, a first end of the switch S2 is connected to the live line L2, a second end of the switch S2 is connected to the neutral line N2, a third end of the switch S2 is connected to the fuse 2FU1 and the first end of the switch KM2, a fourth end of the switch S2 is connected to one end of the relay KM2-a1-a2 and the second end of the switch KM2, the other end of the relay KM2-a1-a2 is connected to the other end of the fuse 2FU1, and a third end of the switch KM2 and a fourth end are connected to the second module.
The switch S2 is closed at the beginning, so that the relay KM2-A1-A2 is electrified to control the switch KM2 to be closed, and the relay KM2-21-21 and the relay KM2-61-62 to be bounced open, so that 220V alternating current is supplied to the module II through the live wire L2 and the zero wire N2.
In this embodiment: referring to fig. 5 and 6, the voltage switching module includes a fuse 1FU2, a switch KM2-21-22, a switch KM2-61-62, a relay KM3-a1-a2, a switch KM3, a fuse 2FU2, a switch KM1-21-22, and a switch KM1-61-62, one end of the fuse 1FU2 is connected to one end of the switch KM2-21-22, the other end of the switch KM2-21-22 is connected to one end of the relay KM3-a1-a2 and one end of the switch KM1-21-22, the other end of the switch KM 1-82921-22 is connected to the fuse 2FU2, the other end of the relay KM3-a1-a2 is connected to one end of the switches KM2-61-62 and the relay KM1-61-62, the first end and the second end of the switch KM3 are connected to the first end of the module, and the third end of the switch KM3 is connected to the switch KM3, And the fourth end is connected with the second module.
When part of circuits of a first power supply module above KM1 in FIG. 6 have faults, a relay KM1 does not work, so that KM1-21-22 and KM1-61-62 are closed, a live line L2 and a zero line N2 supply power to the relay KM3-A1-A2, and a relay KM3 controls a switch KM3 to be closed, so that a live line L2 and a zero line N2 supply power to a first module through a switch KM 3; similarly, when partial circuit of a second power supply module above the KM2 fails, the KM2-21-22 and the KM2-61-62 are closed, so that the relay KM3-A1-A2 fails, and a live line L1 and a neutral line N1 supply power to the module II; therefore, the first power supply module and the second power supply module can still supply power to the first module and the second module when the first power supply module and the second power supply module have faults.
The working principle of the utility model is as follows: the first power supply module supplies 220V alternating current to the first module, the second power supply module supplies 220V alternating current to the second module, the first module and the second module convert the 220V alternating current into-48V/10A direct current, and when any one of the first power supply module and the second power supply module is powered off, the other power supply module supplies 220V alternating current to the first module and the second module, so that economic loss and workload of maintenance personnel caused by power failure or faults are reduced, and the stability of the whole communication network is improved.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122237082.XU CN215990310U (en) | 2021-09-16 | 2021-09-16 | A dual power supply automatic switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122237082.XU CN215990310U (en) | 2021-09-16 | 2021-09-16 | A dual power supply automatic switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215990310U true CN215990310U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122237082.XU Expired - Fee Related CN215990310U (en) | 2021-09-16 | 2021-09-16 | A dual power supply automatic switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215990310U (en) |
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2021
- 2021-09-16 CN CN202122237082.XU patent/CN215990310U/en not_active Expired - Fee Related
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