CN202872628U - Multi-switch power supply impact current inhibition device - Google Patents
Multi-switch power supply impact current inhibition device Download PDFInfo
- Publication number
- CN202872628U CN202872628U CN 201220583847 CN201220583847U CN202872628U CN 202872628 U CN202872628 U CN 202872628U CN 201220583847 CN201220583847 CN 201220583847 CN 201220583847 U CN201220583847 U CN 201220583847U CN 202872628 U CN202872628 U CN 202872628U
- Authority
- CN
- China
- Prior art keywords
- power supply
- pulse generator
- output
- impact current
- port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Direct Current Feeding And Distribution (AREA)
Abstract
The utility model relates to an impact current inhibition device which can overcome the overlarge system impact current when a switch power supply of multiple apparatuses is powered on. A multi-switch power supply impact current inhibition device is provided. The adopted technical scheme is that: the device includes a power supply, a sequential pulse generator, multiple self-holding relays, an input interface, and multiple output interfaces. The sequential pulse generator includes multiple pulse output terminals. The input interface is connected with the power supply and one port of a controlled terminal of each self-holding relay, and each output interface is connected with the other port of the controlled terminal of each self-holding relay. The power supply is connected with the sequential pulse generator and one port of a control terminal of each self-holding relay. The other port of the control terminal of each self-holding relay is connected with one pulse output terminal of the sequential pulse generator. The beneficial effects are that the impact current is reduced, the pressure of a power distribution system is reduced, and the safety hidden troubles are eliminated. The multi-switch power supply impact current inhibition device is suitable for a multi-switch power supply system.
Description
Technical field
The utility model relates to a kind of impulse current restraining device, especially relates to a kind of impulse current restraining device of many Switching Power Supplies.
Background technology
Little in view of the volume of Switching Power Supply, efficient is high, therefore present most electric equipments all use Switching Power Supply.Switching Power Supply accesses electric capacity and carries out filtering behind the input rectifying bridge.Because capacitor can be regarded short circuit as when transient state, can produce very large impulse current when Switching Power Supply powers on, the amplitude of impulse current is more much larger than steady operation electric current, and general impulse current can reach tens of peaces.Do not limited such as the impact electric current, not only can be burnt out fuse, burnt connector, also can be owing near electric equipment is disturbed in common input impedance.
And in actual applications, heavy construction often has many electric equipments to work simultaneously in using, in the engineering projects such as large-scale monitor supervision platform, outdoor large scale LED mosaic screen the dozens of display unit is often arranged, add ancillary equipment, the Switching Power Supply quantity of the whole on-the-spot equipment that uses can reach up to a hundred, consists of a huge system.The impulse current of each Switching Power Supply is superimposed and forms the system shock electric current of thousands of peaces when system powers on, and brings immense pressure for distribution system and electrical network, can produce arcing phenomena when serious and burn switch, damages device, even cause fire.
The device that the impulse current inhibit feature of realizing many Switching Power Supplies is not yet arranged at present.
The utility model content
When powering on, the Switching Power Supply that technical problem to be solved in the utility model provides a plurality of equipment reduces the impulse current restraining device of many Switching Power Supplies of system shock electric current.
The technical scheme that its technical problem that solves the utility model adopts is: comprise power supply, sequential pulse generator, a plurality of latching relays, an input interface and a plurality of output interface, sequential pulse generator comprises a plurality of pulse output ends, input interface links to each other with a port of power supply and each latching relay controlled terminal, each output interface is connected with the other end of a latching relay controlled terminal, power supply links to each other with a port of sequential pulse generator and each latching relay control end, and the other end of each latching relay control end links to each other with a pulse output end of sequential pulse generator.
Further, the pulse output end quantity of described sequential pulse generator is identical with latching relay quantity.
Further, described latching relay quantity is identical with output interface quantity.
Preferably, what described input interface was inputted is alternating voltage, the output interface output AC voltage.
The beneficial effects of the utility model are: when powering on, this device is powered successively for the equipment on the output interface, and the Switching Power Supply of each equipment is started working successively, the impulse current in the time of can effectively reducing many switch power supply systems and power on, alleviate distribution system and electrical network pressure, eliminate safe hidden trouble.The utility model is applicable in many switch power supply systems.
Description of drawings
Fig. 1 is the utility model apparatus structure unit block diagram;
Fig. 2 is that the utility model pulse sequence concerns schematic diagram.
Embodiment
Further specify the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, the impulse current restraining device of many Switching Power Supplies, it is characterized in that, comprise power supply, sequential pulse generator, n latching relay (n is the positive integer greater than 1), an input interface and n output interface, sequential pulse generator comprises n pulse output end, input interface links to each other with a port of power supply and each latching relay controlled terminal, each output interface is connected with the other end of a latching relay controlled terminal, power supply links to each other with a port of sequential pulse generator and each latching relay control end, and the other end of each latching relay control end links to each other with a pulse output end of sequential pulse generator.
What described input interface was inputted is alternating voltage, the output interface output AC voltage.
When this device did not have the alternating current input, latching relay kept normally open, and output interface does not have alternating current output yet.In use, input interface meets 220V and exchanges, and uses the electric equipment of Switching Power Supply to be connected on the output interface, and output interface begins output AC voltage with the certain hour interval.When powering on, this device can be powered successively to each electric equipment, and the Switching Power Supply of each equipment is started working successively, the stack of impulse current when avoiding each Switching Power Supply to work simultaneously.
Such as Fig. 2, when input interface has the alternating current input, the power initiation of this device, sequential pulse generator and latching relay power on and start working; Sequential pulse generator sends the 1 road pulse signal, latching relay 1 closure, and output interface 1 has the output of interchange, and the electric equipment that is connected on the output interface 1 works on power; Then sequential pulse generator sends the 2 road pulse signal, latching relay 2 closures, and output interface 2 has the output of interchange, and the electric equipment that is connected on the output interface 2 works on power; The like, be connected to the 1st to n the electric equipment on the output port and work on power successively.So just be connected to the turn-on time of each electric equipment power supply on this equipment by adjustment, it is excessive to efficiently solve the system shock electric current that the Switching Power Supply impulse current stack of a plurality of equipment when powering on forms, and equipment and system are caused damage.
If the electric equipment in the practical application is more, use this device to carry out cascade, also can expand output port quantity, be convenient to access more electric equipment.
Claims (4)
1. the impulse current restraining device of many Switching Power Supplies, it is characterized in that, comprise power supply, sequential pulse generator, a plurality of latching relays, an input interface and a plurality of output interface, sequential pulse generator comprises a plurality of pulse output ends, input interface links to each other with a port of power supply and each latching relay controlled terminal, each output interface is connected with the other end of a latching relay controlled terminal, power supply links to each other with a port of sequential pulse generator and each latching relay control end, and the other end of each latching relay control end links to each other with a pulse output end of sequential pulse generator.
2. the impulse current restraining device of many Switching Power Supplies as claimed in claim 1 is characterized in that, the pulse output end quantity of described sequential pulse generator is identical with latching relay quantity.
3. the impulse current restraining device of many Switching Power Supplies as claimed in claim 1 or 2 is characterized in that, latching relay quantity is identical with output interface quantity.
4. such as the impulse current restraining device of claim 1 or 2 or 3 described many Switching Power Supplies, it is characterized in that what described input interface was inputted is alternating voltage, the output interface output AC voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220583847 CN202872628U (en) | 2012-11-07 | 2012-11-07 | Multi-switch power supply impact current inhibition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220583847 CN202872628U (en) | 2012-11-07 | 2012-11-07 | Multi-switch power supply impact current inhibition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202872628U true CN202872628U (en) | 2013-04-10 |
Family
ID=48039314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220583847 Expired - Lifetime CN202872628U (en) | 2012-11-07 | 2012-11-07 | Multi-switch power supply impact current inhibition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202872628U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761927A (en) * | 2013-11-08 | 2014-04-30 | 合肥瑞华电子科技有限责任公司 | Bottom beam structure for display screen |
| WO2024031927A1 (en) * | 2022-08-09 | 2024-02-15 | 南京品生医疗科技有限公司 | Power supply apparatus for triple quadrupole mass spectrometer |
-
2012
- 2012-11-07 CN CN 201220583847 patent/CN202872628U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761927A (en) * | 2013-11-08 | 2014-04-30 | 合肥瑞华电子科技有限责任公司 | Bottom beam structure for display screen |
| WO2015066963A1 (en) * | 2013-11-08 | 2015-05-14 | 合肥瑞华电子科技有限责任公司 | Bottom beam structure for display screen |
| WO2024031927A1 (en) * | 2022-08-09 | 2024-02-15 | 南京品生医疗科技有限公司 | Power supply apparatus for triple quadrupole mass spectrometer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103941176B (en) | Fault detection system for VBE system device of high-voltage direct current transmission converter valve | |
| CN204068405U (en) | The earth leakage protective DC power-supply system of a kind of band | |
| CN202872628U (en) | Multi-switch power supply impact current inhibition device | |
| CN204928348U (en) | Embedded dual supply automatic transfer equipment of protocol conversion ware | |
| CN203551249U (en) | Underwater high-voltage discharging bubble-generation device | |
| CN201048291Y (en) | Parallel high voltage dynamic reactive compensator | |
| CN204422719U (en) | A kind of VBE system equipment fault detection system of high voltage direct current transmission converter valve | |
| CN202424538U (en) | Parallel high-power high-frequency switching power supply system | |
| CN103743931A (en) | High-power grid voltage simulation circuit | |
| CN103595264B (en) | There is the high frequency electric source of site manual operation system | |
| CN203086118U (en) | 10kV cable network feeder automation device | |
| CN203882138U (en) | VBE system simulation operation and training platform of high voltage direct current transmission converter valve | |
| CN204230918U (en) | Group wells dynamic compensation is soft opens Time-sharing control device | |
| CN204089578U (en) | A kind of continuous electric commutation circuit of alternating current-direct current of integrated power supply | |
| CN203135396U (en) | A cell phone remote lightning protection isolator | |
| CN202797954U (en) | Power management unit (PMU) with lightning protection function | |
| CN204652268U (en) | Hydrogen compressor electric reconstruction control system | |
| CN2865097Y (en) | Lightning protection special type equipment without earth wire | |
| CN204068735U (en) | The universal power module of a kind of power automatic system | |
| CN204615638U (en) | A kind of the soft of high-voltage cascade frequency converter opens circuit | |
| CN203674724U (en) | Low-voltage reactive dynamic compensation apparatus | |
| CN103972925A (en) | Distributed photovoltaic grid connection protective device | |
| CN204230906U (en) | Oil gas field group wells soft start Time-sharing control device | |
| CN213875821U (en) | Intermittent current testing system | |
| CN203367962U (en) | Power outputting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |