CN203416038U - Dual power supply device - Google Patents
Dual power supply device Download PDFInfo
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- CN203416038U CN203416038U CN201320379589.1U CN201320379589U CN203416038U CN 203416038 U CN203416038 U CN 203416038U CN 201320379589 U CN201320379589 U CN 201320379589U CN 203416038 U CN203416038 U CN 203416038U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The utility model provides a dual power supply device. The dual power supply device comprises a first switch for disconnection in case of electrical network abnormity, a backup power source, an uninterrupted power source, and an automatic conversion switch electric appliance automatically selecting an electrical network or the backup power source as a power supply source. The first switch has one end connected with the electrical network and the other end electrically connected with a first input end S1 of the automatic conversion switch electric appliance; a second input end S2 of the automatic conversion switch electric appliance is electrically connected with the output end of the backup power source; the output end of the automatic conversion switch electric appliance is connected with a load through the uninterrupted power source; the backup power source comprises a storage battery, an inversion circuit for converting direct current outputted by the storage battery into alternating current, and a voltage conversion circuit for converting voltage outputted by the inversion circuit into needed voltage values; and the storage battery, the inversion circuit and the voltage conversion circuit are successively in electrical connection. The dual power supply device can supply power to the load in a really safe mode.
Description
Technical field
The utility model relates to a kind of power supply, relates in particular to a kind of dual power supply device.
Background technology
Along with social development, in many places, (especially industrial) needs continual power supply to people.For example, network has become part indispensable in people's live and work, and the power supply reliability that forms the digital machine room of network has become key, and the reliable power supply of machine room is the most important thing.UPS(uninterrupted power supply, uninterrupted power supply) be exactly in order to solve uninterrupted power supply setting, the three large basic functions of UPS: voltage stabilizing, filtering, can not be interrupted.When mains-supplied, it is the effect of pressurizer and filter, and to eliminate or to weaken the interference of civil power, assurance equipment is worked normally; When commercial power interruption, it can pass through again its direct current supply part (battery pack, diesel engine generator etc.) direct current providing is converted into alternating current for load, wherein by mains-supplied, turning powered battery is generally the zero-time and switches, so just make load equipment in imperceptible any variation, keep operation, and then guaranteed the uninterrupted operation of power consumption equipment.
Although UPS can be powered so that rear end load is continual as uninterrupted power supply, but in prior art, the power supply that the input of UPS provides only has a road, when the circuit of the power supply providing when the unique input of UPS breaks down, it can not give the charging of UPS internal cell in time, causes UPS not support the long period.For example, because the fan of a lot of device interiors and Switching Power Supply etc. are all to be powered by UPS, for guaranteeing the continuous service of whole equipment, cause the capacity of UPS very large, when so UPS only depends on its internal cell as stand-by power supply when its external power source breaks down, be difficult to especially support the long period, so that may there is the situation of power-off in rear end load.
Be understandable that, the statement of this part only provides the background information relevant to the utility model, may form or not form so-called prior art.
Summary of the invention
Technical problem to be solved in the utility model is that the supply unit for UPS place in prior art may occur power-off and can not really realize the defect of uninterrupted power supply, the power supply that a kind of UPS of making place is provided is Dual-power device, and then really ensures the dual power supply device of load uninterrupted power supply.
The utility model solves the technical scheme that its technical problem adopts and is to provide a kind of dual power supply device, and it comprises: the first switch disconnecting when abnormal for electrical network, stand-by power supply, uninterrupted power supply and for automatically selecting electrical network or stand-by power supply as the automatic transfer switching electric appliance of power supply source; One end of the first switch is connected with electrical network, its other end is electrically connected to the first input end S1 of automatic transfer switching electric appliance, the second input S2 of automatic transfer switching electric appliance is electrically connected to the output of stand-by power supply, and the output of automatic transfer switching electric appliance is electrically connected to load by uninterrupted power supply; Stand-by power supply comprises: storage battery, for the direct current of storage battery output being converted to the inverter circuit of alternating current and being the voltage conversion circuit of required voltage value by the voltage transitions of inverter circuit output; Storage battery, inverter circuit and voltage conversion circuit are electrically connected to successively, and the output of voltage conversion circuit is the output of stand-by power supply.
In above-mentioned dual power supply device, also comprise that one end of described second switch is connected with electrical network for controlling second switch and the rectification circuit of the break-make of storage battery and electrical network, its other end is connected with storage battery after being electrically connected to rectification circuit.
In above-mentioned dual power supply device, described second switch is contactor.
In above-mentioned dual power supply device, described the first switch is circuit breaker.
In above-mentioned dual power supply device, also comprise the filter for the alternating current of inverter circuit output is carried out to filtering, described filter is connected between described inverter circuit and described voltage conversion circuit.
In above-mentioned dual power supply device, described filter is LC filter.
In above-mentioned dual power supply device, also comprise the relay at least with three groups of contacts, the output of described automatic transfer switching electric appliance is electrically connected to the first contact and second contact of relay simultaneously; The coil of series relay between two outputs of described uninterrupted power supply, and two outputs of uninterrupted power supply are electrically connected to respectively the 3rd contact and the 4th contact of relay, the 5th contact and the 6th contact of relay are electrically connected to load, wherein, the common port that the 5th contact and the 6th contact are relay, the first contact and the 5th contact and the second contact and the 6th contact are normally off.
In above-mentioned dual power supply device, described relay is the relay with four groups of contacts.
In above-mentioned dual power supply device, also comprise the testing circuit that whether breaks down for detection of uninterrupted power supply and for the break down warning device of alarm of uninterrupted power supply, the input of described testing circuit is electrically connected to the 7th contact and the 8th contact of described relay, and the coil of relay is electrically connected between the 7th contact and the 8th contact, and warning device is electrically connected to the output of testing circuit.
In above-mentioned dual power supply device, described warning device is electrically connected to described testing circuit by RS485 interface or RS232 interface.
The dual power supply device that the utility model provides, it can substitute electrical network as second source by the stand-by power supply that storage battery, inverter circuit and voltage conversion circuit form again, to power to UPS, and, it is by the cooperation of the first switch and automatic transfer switching electric appliance (ATS), make the ATS power supply that selection is powered to UPS in electrical network and stand-by power supply of safety automatically, and then make UPS there is double insurance, make the power supply at UPS place really realize uninterrupted power supply, and then the safe and reliable continual work of proof load.
Accompanying drawing explanation
Fig. 1 is the theory diagram that the dual power supply device that provides of the utility model connects load;
Fig. 2 is the structural representation that in the preferred embodiment that provides of the utility model, dual power supply device connects load;
Fig. 3 is the structural representation of dual power supply device in the another preferred embodiment that provides of the utility model.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
In description of the present utility model, it will be appreciated that, term " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
The dual power supply device that the utility model provides is mainly based on ATS(Automatic transfer switching equipment, automatic transfer switching electric appliance) realize automatically and switching with the load supplying to UPS and UPS rear end in two power supplys.
Referring to shown in Fig. 1 to Fig. 3, the dual power supply device that the utility model provides mainly comprises: the first switch disconnecting when abnormal for electrical network, stand-by power supply, uninterrupted power supply (UPS) and for automatically selecting electrical network or stand-by power supply as the automatic transfer switching electric appliance of power supply source.One end of the first switch is connected with electrical network, its other end is electrically connected to the first input end S1 of automatic transfer switching electric appliance, the second input S2 of automatic transfer switching electric appliance is electrically connected to the output of stand-by power supply, and the output S3 of automatic transfer switching electric appliance is electrically connected to load by uninterrupted power supply.Stand-by power supply comprises: storage battery, for the direct current of storage battery output being converted to the inverter circuit of alternating current and being the voltage conversion circuit of required voltage value by the voltage transitions of inverter circuit output; Storage battery, inverter circuit and voltage conversion circuit are electrically connected to successively, and the output of voltage conversion circuit is the output of stand-by power supply.Storage battery can be converted to the direct current of its output the alternating current of the required magnitude of voltage of electric supply installation rear end load by inverter circuit and voltage conversion circuit.So, before UPS, by electrical network and stand-by power supply, can provide duplex feeding to originate, simultaneously, ATS has the automatic power supply source, road of selecting in duplex feeding source and exports UPS to, having automatically that ATS is well known to those skilled in the art selects by input Zhong mono-tunnel the device for switching of exporting, and it has the function that output is preferably selected on a road.In this programme, ATS preferably selects the electric energy (selecting first input end S1) that electrical network is provided to export UPS to, and when electrical network breaks down, it exports stand-by power supply (selecting the second input S2) to UPS automatically.The first switch can safety the electrical network that guarantees be access in ATS, and storage battery can recharging, provides duplicate supply to UPS, and then realize safe and reliable and continual powering load so the dual power supply device that the utility model provides can safety.
The above-mentioned voltage conversion circuit that direct current is converted to the inverter circuit of interchange and is required magnitude of voltage by the voltage transitions of inverter circuit output (is mainly to boost or step-down, transformer for example) be well known to those skilled in the art, its structure and principle do not repeat them here.
In the preferred embodiment providing at the utility model, for the ease of storage battery in stand-by power supply is charged, dual power supply device also comprises second switch and rectification circuit.One end of second switch is connected with electrical network, and its other end is connected with storage battery after being electrically connected to rectification circuit.By second switch, control between electrical network and storage battery and whether be switched on.For example, when storage battery dump energy is less and storage battery during in idle condition, closed second switch, electrical network and rectification circuit are connected, therefore the alternating current of electrical network is converted to direct current with rectification circuit and accumulators charges, and then can guarantee that storage battery has sufficient electric energy always.And it utilizes ready-made grid charging, both simple and fast and simple in structure, cost is lower.Preferably, second switch is contactor, and its fast response time, energy consumption is low and can bear the high voltage on electrical network.The first switch is preferably circuit breaker, and it can be high pressure resistant and after open failure circuit, generally need to change parts.Preferably, dual power supply device also comprises the filter for the alternating current of inverter circuit output is carried out to filtering, and described filter is connected between described inverter circuit and described voltage conversion circuit.Preferably, filter is LC filter, and it is simple in structure, cost is lower and filter effect is better.
Again participate in Fig. 3, in the preferred embodiment providing at the utility model, dual power supply device also comprises the relay at least with three groups of contacts, and the output of described automatic transfer switching electric appliance is electrically connected to the first contact and second contact of relay simultaneously; The coil of series relay between two outputs of described uninterrupted power supply, and two outputs of uninterrupted power supply are electrically connected to respectively the 3rd contact and the 4th contact of relay, the 5th contact and the 6th contact of relay are electrically connected to load, wherein, the common port that the 5th contact and the 6th contact are relay, the first contact and the 5th contact and the second contact and the 6th contact are normally off.Be relay coil not when electric, the first contact contacts closed with the 5th contact, the second contact contacts closure with the 6th contact.Those skilled in the art know, and UPS has three basic functions: voltage stabilizing, filtering and uninterrupted.When by above-mentioned electrical network or stand-by power supply power supply, the UPS in access circuit plays pressurizer and filter, with assurance equipment, works; When above-mentioned electrical network and stand-by power supply all interrupt, the UPS in access circuit can provide the load supplying of electric energy to rear end by the battery of himself inside, and then realizes the continual effect of power supply.This preferred embodiment can be realized and when UPS fault, pass through bypass power supply, and then guarantees the reliable continuous service of electric supply installation rear end load.Its operation principle is described as follows:
The bypass that ATS forms by relay can be connected to the load of rear end.The output of automatic transfer switching electric appliance is electrically connected to the first contact 1 and second contact 2 of relay simultaneously.The coil K1 of series relay between two outputs of UPS, and two outputs of UPS are electrically connected to respectively the 3rd contact 3 and the 4th contact 4 of relay, and the 5th contact 5 and the 6th contact 6 of relay are electrically connected to load.Wherein, the common port that the 5th contact 5 of relay and the 6th contact 6 are relay, the first contact and the 5th contact are in normally off, and the second contact and the 6th contact are in normally off.When under normality, UPS does not work, during the coil losing electricity of relay, the 5th contact of relay and the 6th contact respectively with its first contact and second closing of contact.When UPS is normal, the electric energy of ATS output starts UPS(now, the effect of main its pressurizer of UPS and filter), relay R 1 coil obtains electric, the contact action of relay, the 5th contact of relay and the 6th contact disconnect with its first contact and the second contact respectively, and the 5th contact of relay and the 6th contact respectively with its 4th contact and the 3rd closing of contact, and then the electric energy of ATS output through UPS and relay to rear end load supplying (giving rear end load supplying by circuit 1).When UPS fault, UPS rear end no-output, relay R 1 coil losing electricity, contact action, the 5th contact of relay and the 6th contact disconnect with its 4th contact and the 3rd contact respectively, and the first contact of relay and the second contact and its 5th contact and the 6th contact demand working, so the electric energy of ATS output is skipped UPS, i.e. the electric energy of ATS output is directly given load (or circuit of next stage) power supply (passing through circuit 2 to rear end load supplying) through relay.So even if can find out that thus UPS breaks down, it still has the path can be by electrical energy transfer to load always, it is realized automatically, and voltage switches and it is the switching at zero interval, therefore it can really realize uninterrupted power supply.
In the preferred embodiment providing at the utility model, relay can be for containing 4 groups of even more contacts, to realize more control.Preferably, relay contains 4 groups of contacts, and it can have the control of many-sided break-make, again simple in structure, cost is lower.The dual power supply device that the utility model provides also comprises testing circuit and warning device, whether testing circuit breaks down for detection of UPS, when breaking down for UPS, warning device reports to the police, with prompting user, in time UPS is repaired or replaced, and then guarantee that the work of uninterrupted power supply device is more effectively reliable.The input of testing circuit is electrically connected to the 7th contact and the 8th contact of relay simultaneously, and the coil K1 of relay is electrically connected between the 7th contact and the 8th contact.Testing circuit mainly by magnetic test coil K1 whether whether the electric UPS of judgement breaks down, for detection of UPS whether the structure of the testing circuit of fault be well known to those skilled in the art, therefore its structure and principle do not repeat them here.Warning device is electrically connected to the output of testing circuit, and preferably, warning device is electrically connected to described testing circuit by RS485 interface or RS232 interface, and its reliable communications and cost are lower.Warning device is also well known to those skilled in the art, and preferably, warning device is LED or buzzer, and its effect and cost that can effectively play warning is lower.
In sum, the dual power supply device that the utility model provides can be widely used in the various electronic products that need power supply, for example converter.It adopts the supply power mode based on ATS, can form two-way power supply and power to UPS, and then real realize safety to the continual power supply of load, and, its long service life, reliability is high.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
In description of the present utility model, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be to be directly connected, and also can indirectly be connected by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (10)
1. a dual power supply device, is characterized in that, comprising: the first switch disconnecting when abnormal for electrical network, stand-by power supply, uninterrupted power supply and for automatically selecting electrical network or stand-by power supply as the automatic transfer switching electric appliance of power supply source;
One end of the first switch is connected with electrical network, its other end is electrically connected to the first input end S1 of automatic transfer switching electric appliance, the second input S2 of automatic transfer switching electric appliance is electrically connected to the output of stand-by power supply, and the output of automatic transfer switching electric appliance is electrically connected to load by uninterrupted power supply;
Stand-by power supply comprises: storage battery, for the direct current of storage battery output being converted to the inverter circuit of alternating current and being the voltage conversion circuit of required voltage value by the voltage transitions of inverter circuit output; Storage battery, inverter circuit and voltage conversion circuit are electrically connected to successively, and the output of voltage conversion circuit is the output of stand-by power supply.
2. dual power supply device as claimed in claim 1, it is characterized in that, also comprise that one end of described second switch is connected with electrical network for controlling second switch and the rectification circuit of the break-make of storage battery and electrical network, its other end is connected with storage battery after being electrically connected to rectification circuit.
3. dual power supply device as claimed in claim 2, is characterized in that, described second switch is contactor.
4. the dual power supply device as described in claim 1 or 3, is characterized in that, described the first switch is circuit breaker.
5. the dual power supply device as described in claim 1 or 3, is characterized in that, also comprises the filter for the alternating current of inverter circuit output is carried out to filtering, and described filter is connected between described inverter circuit and described voltage conversion circuit.
6. dual power supply device as claimed in claim 5, is characterized in that, described filter is LC filter.
7. dual power supply device as claimed in claim 6, is characterized in that, also comprises the relay at least with three groups of contacts, and the output of described automatic transfer switching electric appliance is electrically connected to the first contact and second contact of relay simultaneously; The coil of series relay between two outputs of described uninterrupted power supply, and two outputs of uninterrupted power supply are electrically connected to respectively the 3rd contact and the 4th contact of relay, the 5th contact and the 6th contact of relay are electrically connected to load, wherein, the common port that the 5th contact and the 6th contact are relay, the first contact and the 5th contact and the second contact and the 6th contact are normally off.
8. dual power supply device as claimed in claim 7, is characterized in that, described relay is the relay with four groups of contacts.
9. dual power supply device as claimed in claim 8, it is characterized in that, also comprise the testing circuit that whether breaks down for detection of uninterrupted power supply and for the break down warning device of alarm of uninterrupted power supply, the input of described testing circuit is electrically connected to the 7th contact and the 8th contact of described relay, and the coil of relay is electrically connected between the 7th contact and the 8th contact, and warning device is electrically connected to the output of testing circuit.
10. dual power supply device as claimed in claim 9, is characterized in that, described warning device is electrically connected to described testing circuit by RS485 interface or RS232 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320379589.1U CN203416038U (en) | 2013-06-28 | 2013-06-28 | Dual power supply device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320379589.1U CN203416038U (en) | 2013-06-28 | 2013-06-28 | Dual power supply device |
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| CN203416038U true CN203416038U (en) | 2014-01-29 |
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| CN201320379589.1U Expired - Lifetime CN203416038U (en) | 2013-06-28 | 2013-06-28 | Dual power supply device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009490A (en) * | 2014-06-13 | 2014-08-27 | 国网上海市电力公司 | Mobile energy storage system for dual power supply |
| CN104333957A (en) * | 2014-11-22 | 2015-02-04 | 临沂施乃通电气技术有限公司 | Transformer substation intelligence type illuminating system |
| CN105914869A (en) * | 2016-05-30 | 2016-08-31 | 鹿寨县众盛商贸有限公司 | Control system of controllable double-power-source switch based on PLC |
| CN107910952A (en) * | 2017-10-31 | 2018-04-13 | 河北汉光重工有限责任公司 | A kind of power distribution equipment that more power supplys can be achieved and automatically switch |
| CN110994772A (en) * | 2019-06-11 | 2020-04-10 | 联正电子(深圳)有限公司 | Power distribution system and control method thereof |
| CN111009892A (en) * | 2019-06-11 | 2020-04-14 | 联正电子(深圳)有限公司 | Distribution board |
| CN112271814A (en) * | 2020-11-16 | 2021-01-26 | 合肥联信电源有限公司 | Method for zero-interruption conversion of double power supplies |
| CN117578698A (en) * | 2024-01-16 | 2024-02-20 | 深圳市力生美半导体股份有限公司 | Dual-power management device |
-
2013
- 2013-06-28 CN CN201320379589.1U patent/CN203416038U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009490A (en) * | 2014-06-13 | 2014-08-27 | 国网上海市电力公司 | Mobile energy storage system for dual power supply |
| CN104333957A (en) * | 2014-11-22 | 2015-02-04 | 临沂施乃通电气技术有限公司 | Transformer substation intelligence type illuminating system |
| CN105914869A (en) * | 2016-05-30 | 2016-08-31 | 鹿寨县众盛商贸有限公司 | Control system of controllable double-power-source switch based on PLC |
| CN107910952A (en) * | 2017-10-31 | 2018-04-13 | 河北汉光重工有限责任公司 | A kind of power distribution equipment that more power supplys can be achieved and automatically switch |
| CN110994772A (en) * | 2019-06-11 | 2020-04-10 | 联正电子(深圳)有限公司 | Power distribution system and control method thereof |
| CN111009892A (en) * | 2019-06-11 | 2020-04-14 | 联正电子(深圳)有限公司 | Distribution board |
| CN112271814A (en) * | 2020-11-16 | 2021-01-26 | 合肥联信电源有限公司 | Method for zero-interruption conversion of double power supplies |
| CN117578698A (en) * | 2024-01-16 | 2024-02-20 | 深圳市力生美半导体股份有限公司 | Dual-power management device |
| CN117578698B (en) * | 2024-01-16 | 2024-05-17 | 深圳市力生美半导体股份有限公司 | Dual-power management device |
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