CN208782738U - It is a kind of based on magnetic switch control distributed electrical source device, charging pile, charger, protection circuit device - Google Patents
It is a kind of based on magnetic switch control distributed electrical source device, charging pile, charger, protection circuit device Download PDFInfo
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- CN208782738U CN208782738U CN201821090685.3U CN201821090685U CN208782738U CN 208782738 U CN208782738 U CN 208782738U CN 201821090685 U CN201821090685 U CN 201821090685U CN 208782738 U CN208782738 U CN 208782738U
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Abstract
The utility model belongs to LED display actuation techniques field; disclose it is a kind of based on magnetic switch control distributed electrical source device, charging pile, charger, protection circuit device; the distributed electrical source device includes: centralized AC/AC converter; for 50Hz alternating current to be become AC power source required for system; ac bus is formed, is wired in each distribution AC/DC converter；Distributed AC/DC converter, hangs on ac bus, for generating low-voltage DC required for LED display.The utility model realizes distributed accurate control using magnetic switch technology, and control is simple, cheap；It is easy for installation；Distributed AC/DC converter can directly be inlayed together with display panel module, save low-voltage, high-current transmission line；It is easy for installation, saving of work and time；Ac bus voltage is high, electric current is small, line footpath is small, few with material；High reliablity, distributed generation resource take magnetic switch mode, and the reliability of magnetic switch and service life are much higher than electronic switch.
Description
Technical field
The utility model belongs to LED display actuation techniques field more particularly to a kind of distribution based on magnetic switch control
Formula power supply device, charging column, charger, protection circuit device.
Background technique
Currently, the prior art commonly used in the trade is such that
With the integrated application of multiple-energy-source, and distributed electrical equipment is widely used, such as wind-light-bavin synthesis
The characteristics of power station, distributed charging unit, high-power LED display screen module drive power-supply system etc., these power-supply systems, is: electricity
Each user can be transmitted to by centralized bus, each user carries out AC/DC or DC/DC transformation again as needed.It is most common
Centralized bus has industrial frequency AC (50Hz) form and DC bus transmission mode.
For example, multiple-energy-source DC bus common at present passes energy and mapping mode, a variety of electric energy are passed through AC/DC by it
Or DC/DC converter is transformed to the direct current of unified voltage magnitude, is transferred to each user terminal.User passes through point again according to load characteristic
Cloth converter converts out AC or DC electricity and applies for load.
(1) for 50Hz ac transmission system, distributed generation resource needs transformer to drop (liter) pressure, AC/DC, DC/AC, AC/DC
Equal transform parts, or pass through multiple transform parts such as AC/DC, DC/DC, high frequency transformer, AC/DC, realize and power grid every
From meeting load requirement；
(2) for DC transmission system, distributed generation resource needs: the transform parts such as DC/AC, high frequency transformer, AC/DC,
Realize that related isolation meets load requirement.
(3) each distributed generation resource institute bringing onto load property, power are variations, so necessary having electronic regulating device,
Realize that power or voltage are adjusted.
It integrates, present distributed power supply system, structure is complicated, at high cost, control parameter adjustment difficulty is big；Simultaneously
It needs to use more electrolytic capacitor, influences the service life of whole system.
Solve the difficulty and meaning of above-mentioned technical problem:
Solve the problems, such as that above-mentioned technical problem is:
(1) existing electric energy transmission mode must be broken through, for example high frequency AC-bus can be taken to transmit；
(2) waveform of its AC power source palpus Symmetrical in existing ac bus transmission mode, reduction pair must be broken through
The requirement of centrally connected power source converter；
(3) transform part for reducing distributed generation resource, cancels electronic regulating unit；
(4) detection and holding of the output short circuit protection of magnetic switch adjuster.
The meaning to solve the above problems is:
(1) requirement of energy transmission bus is reduced.Such as the waveform requirements to ac bus, symmetry, its significance lies in that:
Centrally connected power source can be sinewave inverter, square wave transducer, symmetrical bipolar converter and single-end ortho-exciting, inverse-excitation converting
Device, it is high, convenient that converter develops flexibility.
(2) distributed generation resource transform part is few, structure is simple, at low cost；
(3) cancel electronic controller device, system reliability is high；
(4) system wiring is simple, saving of labor, time saving；
(5) easy to maintain, maintenanceability is good.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of distributed generation resource based on magnetic switch control
Device, charging column, charger, protection circuit device.
The utility model is realized in this way a kind of distributed electrical source device based on magnetic switch control, comprising:
It is female to form exchange for 50Hz alternating current to be become AC power source required for system for centralized AC/AC converter
Line is wired in each distribution AC/DC converter；
Distributed AC/DC converter, hangs on ac bus, for generating low-voltage DC required for LED display；
Further, each distribution AC/DC converter is integrated with magnetic switch device, is used for output voltage control, meets not
With the characteristic requirements of load；
Each distribution AC/DC converter is integrated with no electrolytic capacitor.
Further, centralized AC/AC converter is non-isolated；
Distributed AC/DC converter takes resonant type soft-switch technology, reduces the influence to LED display；
The main indicators such as distributed AC/DC converter input power factor, current harmonics meet relevant criterion requirement.
Distributed AC/DC converter uses Magnetic isolation converter；
The AC/DC rectification circuit of distributed AC/DC converter takes synchronous rectification；
Distributed AC/DC converter adjusts output voltage by magnetic switch mode；
Magnetic switch device takes self-saturation control mode；
The magnetic core of magnetic switch device selects Amorphous Cores, thin film alloys, ferrite,Hc< 0.10e.
Further, magnetic switch device adjusts turn on delay time by the error amplifier in controller, to output voltage
VoAdjusting；Devices V1, the freewheeling diode V that is separately providedDoHalf circuit of synchronous rectification is formed, forward current is adopted
Synchronous rectification, freewheel current is taken to take diode fashion.
The another object of the utility model is to provide the distributed generation resource based on magnetic switch control described in a kind of be integrated with
The included protection circuit device of system, the included protection circuit device are integrated with the distributed generation resource system based on magnetic switch control
System；
Distributed power supply system based on magnetic switch control connects NBShort-circuit protection winding；Vo2The additional isolation of short-circuit protection
Diode is sequentially connected by wire NBShort-circuit protection winding；Vo1The additional isolating diode of short-circuit protection connects V by conducting wireo2
The additional isolating diode of short-circuit protection, and connect simultaneously by conducting wire with the distributed power supply system controlled based on magnetic switch.
The another object of the utility model is to provide the distributed electrical based on magnetic switch control described in a kind of be integrated with
The bus distributed generation resource charging pile of source device.
The another object of the utility model is to provide the distributed electrical based on magnetic switch control described in a kind of be integrated with
The Public place of source device shares bicycle distribution charger.
In conclusion the advantages of the utility model and good effect are as follows:
Centralization bus power supply of the invention only proposes that alternating voltage or alternating current, waveform can be square wave, can also be with
It is sine wave, is also possible to any other waveform；It reduces the research difficulty of centrally connected power source and develops flexibility, such as middle low power
Centrally connected power source take single end flyback converter, topological structure is simple, and required component is few, low in cost.
The electrical isolation of power supply and user are realized by distributed power supply module, improve the safety of system；
Each distributed power supply module carries switching regulaor, meets the characteristic requirements of different loads；
The utility model distributed power supply module has no electrolytic capacitor, and distributed electrical source service life is increased to and is shown with LED
The same order of magnitude of display screen.
The advantages of the utility model is also:
The utility model is high-efficient.Traditional centralized power AC/DC, efficiency are not more than 85%；The utility model efficiency can
Up to 93% or more；
Distributed accurate control is realized using magnetic switch technology, and control is simple, cheap；
It is easy for installation.Distributed AC/DC converter can directly be inlayed together with display panel module, save low-voltage, high-current
Transmission line；
Save wire rod.Ac bus voltage is high, electric current is small, line footpath is small, few with material；
High reliablity.Distributed generation resource takes magnetic switch mode, and the reliability of magnetic switch and service life are much higher than electronic switch；
Maintenance is simple.Centralized power AC/AC can be placed on the position being conveniently replaceable, maintenance, replacement convenience；
Cooling requirements are low.Centralized formula power supply can be radiated by display screen component, not need special heat dissipation equipment；
Machine system is cheap.
Detailed description of the invention
Fig. 1 is the distributed generation resource schematic device provided by the embodiment of the utility model based on magnetic switch control.
In figure: 1, centralization AC/AC converter；2, ac bus；3, distribution AC/DC converter；4, LED display.
Fig. 2 is distributed electrical source circuit provided by the embodiment of the utility model.
In figure: (a), distribution AC/DC converter be unipolarity converter when distributed electrical source circuit；(b), distributed
Distribution power circuit when AC/DC converter is bipolarity converter.
Fig. 3 is included protection circuit device figure provided by the embodiment of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain that this is practical
It is novel, it is not used to limit the utility model.
In the prior art, bus power supply wave shape cannot use random waveform；The safety of system is poor；It is not able to satisfy different negative
The characteristic requirements of load；Without no electrolytic capacitor.
Fig. 1, the distributed electrical source device provided by the embodiment of the utility model based on magnetic switch control, comprising:
It is female to form exchange for 50Hz alternating current to be become AC power source required for system for centralized AC/AC converter 1
Line 2 is wired in each distribution AC/DC converter；
Distributed AC/DC converter 3, hangs on ac bus, for generating low-voltage direct required for LED display 4
Electricity；
Each distribution AC/DC converter is integrated with magnetic switch device, is used for output voltage control, meets different loads
Characteristic requirements；
Each distribution AC/DC converter is integrated with no electrolytic capacitor.
Centralized AC/AC converter is non-isolated；
AC/AC converter takes resonant type soft-switch technology, reduces the influence to LED display；
The main indicators such as AC/AC converter input power factor, current harmonics meet relevant criterion requirement.
Distributed AC/DC converter uses Magnetic isolation converter；
The AC/DC rectification circuit of distributed AC/DC converter takes synchronous rectification；
Distributed AC/DC converter adjusts output voltage by magnetic switch mode；
Magnetic switch device takes self-saturation control mode；
The magnetic core of magnetic switch device selects Amorphous Cores, thin film alloys, ferrite,Hc< 0.10e.
Such as Fig. 2, magnetic switch device adjusts turn on delay time by the error amplifier in controller, to output voltage Vo
Adjusting；Devices V1, the freewheeling diode V that is separately providedDoHalf circuit of synchronous rectification is formed, forward current is taken
Synchronous rectification, freewheel current take diode fashion.
It is provided by the embodiment of the utility model to be integrated with the distributed power supply system based on magnetic switch control such as Fig. 3
Included protection circuit device, it is described it is included protection circuit device be integrated with based on magnetic switch control distributed power supply system；
Distributed power supply system based on magnetic switch control connects NBShort-circuit protection winding；Vo2The additional isolation of short-circuit protection
Diode is sequentially connected by wire NBShort-circuit protection winding；Vo1The additional isolating diode of short-circuit protection connects V by conducting wireo2
The additional isolating diode of short-circuit protection, and connect simultaneously by conducting wire with the distributed power supply system controlled based on magnetic switch.
The utility model is further described combined with specific embodiments below.
Distributed electrical source device provided by the embodiment of the utility model based on magnetic switch control, centralized AC/AC conversion
50Hz alternating current is become AC power source required for system by device, is formed ac bus, is wired to each distributed generation resource,
Feature is: power is big, and output voltage is high, and extraction wire sectional area is small；
And the distributed AC/DC converter on ac bus is hung over, generate low-voltage DC required for LED display；
For the accurate control for realizing the individually output voltage of distribution AC/DC converter, each distributed generation resource passes through interior
If magnetic switch device realize output voltage control.Distributed AC/DC commutator principle is shown in Fig. 2.
The connecting mode of the utility model: 220V/50Hz electric current couples the input terminal of AC/AC, the output end connection of AC/AC
Ac bus, distributed AC/DC switch input are connected with ac bus, and distributed AC/DC converter exports low-pressure direct
Stream, directly couples with LED display, driving LED display work.
Wherein, centralized AC/AC converter is non-isolated；
Distributed AC/AC converter takes resonant type soft-switch technology, reduces the influence to LED display；
The main indicators such as distributed AC/AC converter input power factor, current harmonics meet relevant criterion requirement.
Distributed AC/DC converter uses Magnetic isolation converter；
The AC/DC rectification circuit of distributed AC/DC converter takes synchronous rectification；
Distributed AC/DC converter adjusts output voltage by magnetic switch mode.
Magnetic switch device takes self-saturation control mode；
The magnetic core of magnetic switch device selects Amorphous Cores, thin film alloys, ferrite,Hc< 0.10e.
The utility model is further described below with reference to working principle.
In Fig. 1, the AC energy that centralized AC/AC converter 1 transmits is become into low-pressure direct required for display screen
Galvanic electricity (generally 5V).Centralized 1 output power of AC/AC converter is 1KW；According to monomer display screen power, distributed AC/DC
2 output power of converter is 20W~80W；Each centralization AC/AC converter 1 can and be hung 18~25 distribution AC/DC and be turned
Parallel operation 2.
Fig. 2 is distributed generation resource circuit diagram provided by the embodiment of the utility model.In figure: (a), distribution AC/DC conversion
Distributed electrical source circuit when device is unipolarity converter；(b), it is distributed when distribution AC/DC converter is bipolarity converter
Formula power circuit.T1、T2For high-frequency isolation transformer, the high frequency that it transmits distributed AC/DC converter/high-voltage electricity becomes
For high frequency/low-tension supply.
In Fig. 2 (a), L1For magnetic switch device, it adjusts turn on delay time by error amplifier (in modules A), real
Now to output voltage VoAdjusting.V1、VD2Half circuit of synchronous rectification is formed, i.e. forward current takes synchronous rectification, freewheel current
Diode fashion is taken, increases power consumption to prevent output from circulating current occur when stopping.Modules A is controller, is a kind of band
From the pi regulator and amplifying circuit of pressure stabilizing.
In Fig. 2 (b), L1、L2For the magnetic switch device of positive negative pulse stuffing；V1、V2For synchronous rectification MOS pipe, VDoIndividually to set
The freewheeling diode set.Module B is the controller similar with modules A.
Fig. 3 is the system diagram of band protection circuit provided by the embodiment of the utility model, is the AC/DC mould in Fig. 2 in box
Block block diagram；NBIt is short-circuit protection winding；Vo1、Vo2It is the additional isolating diode of short-circuit protection.
The control principle of distributed electrical source device provided by the embodiment of the utility model based on magnetic switch control includes:
The electrical isolation of power supply and user are realized by distributed power supply module, improve the safety of system；
Each distributed power supply module carries switching regulaor, meets the characteristic requirements of different loads.
The utility model is further described combined with specific embodiments below.
Centralization-distribution type LED display screen the electrical system provided by the embodiment of the utility model adjusted based on magnetic switch,
Including centralized ac bus, distribution AC/DC converter, distribution type LED display screen.
Centralized ac bus is equipped with L, N, G input terminal, and L, N-terminal are connected with power grid alternating current, and G is protection ground terminal；Output
End is connected with high frequency output line；The input terminal of low-tension supply module simultaneously hangs over ac bus both ends, and output end is straight by plug
It connects and is connected with display screen.
Centralized power AC/AC can according to the watt level of display screen with several distribution AC/DC converters
Multiple centralized power AC/AC, several distribution AC/DC converters of each centralized power AC/AC free band are set.
Single centralized power AC/AC input/output connecting line area is less than 1mm2, output line is suitble to thin with more isolation
Line output.
Distributed AC/DC converter is electromagnetic isolation mode, and the power and LED of single distribution AC/DC converter are shown
Voltage, the power of screen match.
Distributed AC/DC converter requires independent pressure stabilizing control, before centralized power AC/AC has input supply voltage
Feedback control does not have feedback regulation and controls.
Distributed AC/DC converter distribution AC/DC module is based on magnetic switch and is regulated and controled, and magnetic switch device is self-saturation
Control mode.
Distributed AC/DC converter takes half circuit of synchronous rectification, i.e., before to rectification circuit be power MOS rectification, two poles
Pipe afterflow improves rectification efficiency, and prevent filter inductance stop after reverse direction current flow and bring additional loss.
When distributed AC/DC converter exports bipolar pulse (bipolarity converter), distributed AC/DC converter
Fig. 2 circuit is taken, full-wave rectification is synchronous rectification mode, while separately adding freewheeling diode VDo, it is more easier magnetic switch control.
Magnetic switch control circuit need to add output short circuit protective device, and protective device is shown in Fig. 3.
The LED display electrical drive system does not need special heat dissipation equipment.
The other systems that can be used for the transmission of other ac bus based on the distributed generation resource that magnetic switch is adjusted, as distribution is filled
Electric appliance.
Certain 10kwLED display system takes conventional ADS driving mode and the comparison of this system driving method is taken to be shown in Table 1.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (6)
1. a kind of distributed electrical source device based on magnetic switch control, which is characterized in that the distribution based on magnetic switch control
Formula power supply device includes:
For 50Hz alternating current to be become AC power source required for system, ac bus is formed, each distribution is wired to
Centralized AC/AC converter in formula AC/DC converter；
It hangs on ac bus, for generating the distributed AC/DC converter of low-voltage DC required for LED display.
2. the distributed electrical source device as described in claim 1 based on magnetic switch control, which is characterized in that
Each distribution AC/DC converter, which is integrated with, to be met the magnetic of the characteristic requirements of different loads for output voltage control and opens
Close device；
Each distribution AC/DC converter is integrated with no electrolytic capacitor.
3. the distributed electrical source device as claimed in claim 2 based on magnetic switch control, which is characterized in that
Magnetic switch device adjusts turn on delay time by the error amplifier in controller, to output voltage VoAdjusting；It is synchronous
Rectify metal-oxide-semiconductor V1, the freewheeling diode V that is separately providedDoForm half circuit of synchronous rectification.
4. a kind of included protection circuit dress for being integrated with the distributed electrical source device based on magnetic switch control described in claim 1
It sets, which is characterized in that the included protection circuit device is integrated with the distributed power supply system based on magnetic switch control；
Distributed power supply system based on magnetic switch control connects NBShort-circuit protection winding；Vo2Two poles of the additional isolation of short-circuit protection
Pipe is sequentially connected by wire NBShort-circuit protection winding；Vo1The additional isolating diode of short-circuit protection connects V by conducting wireo2Short circuit
Additional isolating diode is protected, and is connect simultaneously by conducting wire with the distributed power supply system controlled based on magnetic switch.
5. a kind of bus distributed electrical for being integrated with the distributed electrical source device described in claim 1 based on magnetic switch control
Source charging pile.
6. a kind of Public place for being integrated with the distributed electrical source device described in claim 1 based on magnetic switch control is total
Enjoy bicycle distribution charger.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821090685.3U CN208782738U (en) | 2018-07-10 | 2018-07-10 | It is a kind of based on magnetic switch control distributed electrical source device, charging pile, charger, protection circuit device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821090685.3U CN208782738U (en) | 2018-07-10 | 2018-07-10 | It is a kind of based on magnetic switch control distributed electrical source device, charging pile, charger, protection circuit device |
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| CN208782738U true CN208782738U (en) | 2019-04-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599602A (en) * | 2018-07-10 | 2018-09-28 | 宋庆国 | A kind of distributed power supply system and control method based on magnetic switch control |
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2018
- 2018-07-10 CN CN201821090685.3U patent/CN208782738U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599602A (en) * | 2018-07-10 | 2018-09-28 | 宋庆国 | A kind of distributed power supply system and control method based on magnetic switch control |
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