CN201336581Y - Uninterrupted power supply system - Google Patents
Uninterrupted power supply system Download PDFInfo
- Publication number
- CN201336581Y CN201336581Y CNU2008202348315U CN200820234831U CN201336581Y CN 201336581 Y CN201336581 Y CN 201336581Y CN U2008202348315 U CNU2008202348315 U CN U2008202348315U CN 200820234831 U CN200820234831 U CN 200820234831U CN 201336581 Y CN201336581 Y CN 201336581Y
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Abstract
The embodiment of the utility model relates to the technical field of electric power equipment, in particular to an uninterrupted power supply system, which comprises a main power supply and a standby power supply, wherein the system also comprises an overcurrent time control and main-auxiliary unit selection circuit; a mains supply detection circuit, a transformer and a mutual inductor are also connected with a 60V relay which is connected with an output circuit; an overcurrent control circuit is connected with the 60V relay; the output circuit is connected with a power supply conversion circuit which is connected with the mains supply detection circuit; a transformation and rectification circuit is connected between the mains supply detection circuit and a mains supply input circuit; and a dial switch and the overcurrent time control and main-auxiliary unit selection circuit are formed into an overcurrent time control and main-auxiliary unit selection system. When the circuit of one of the power supplies is power-off or is damaged, the standby power supply can be switched into a working state right away, so use is convenient, and moreover, the cost is low.
Description
Technical field
The utility model relates to electrical equipment technical field, particularly a kind of uninterruptible power system that is used to provide power supply.
Background technology
In existing electric power system, as: single charger or the power supply of 60vUPS power supply in cable TV network, used.Use single charger, power taking from the supply line, when this supply line because maintenance, when failure and other reasons has a power failure, charger can not give with optical receiver, the amplifier power supply of Wired TV network equipment, but the 220V power supply that the employed 220V power supply of the cable TV subscriber that optical receiver, amplifier connected of this charger power supply not necessarily uses with this charger is in same supply line, so this charger fault can cause not having the cable TV subscriber that has a power failure TV reception normally; Use the cable TV network of 60v ups power power supply, the cost height, the maintenance cost height, battery life is limited, can not deal with long power failure, so usage quantity is very little, does not also in fact solve the problem of outage.
The utility model content
The utility model provides a kind of uninterruptible power system, and when charger line outage wherein or when damaging, the stand-by power supply device changes operating state at once, and is easy to use, and cost is low.
To achieve these goals, the utility model provides following technical scheme:
A kind of uninterruptible power system, comprise main charger and stand-by power supply device, this system comprises that also the overcurrent time that is connected with the stand-by power supply device with described main charger is controlled and the major-minor machine is selected circuit, 220V relay, 60V relay, city's power detection circuit, transformer, transformation rectification circuit, output circuit, civil power input circuit, cross flow control system by what instrument transformer, over-current detection circuit, over-current control circuit were formed, by overcurrent selection of time and the major-minor machine selective system that toggle switch, overcurrent time are controlled and major-minor machine selection circuit is formed, wherein:
Described city power detection circuit, transformer, instrument transformer, over-current detection circuit, over-current control circuit, the control of overcurrent time and major-minor machine select circuit and plucking number sign switch to connect successively, described instrument transformer also connects described 60V relay, described 60V relay connects described output circuit, described over-current control circuit connects described 60V relay, described output circuit connects described power supply change-over circuit, described power supply change-over circuit connects described city power detection circuit, and described transformation rectification circuit is connected between described city power detection circuit and the civil power input circuit.From technique scheme as can be seen, when the uninterruptible power system that the utility model provides can not be worked at main charger, in time select circuit to select standby charger to provide electric power for equipment by control of overcurrent time and major-minor machine, and the uninterruptible power system cost that the utility model provides is low, safeguard simple, can deal with long power failure, and the tool warm standby function.
Description of drawings
The structure principle chart of the uninterruptible power system that Fig. 1 provides for the utility model embodiment.
Embodiment
In order better to understand the technical solution of the utility model, describe the embodiment that the utility model provides in detail below in conjunction with accompanying drawing.
With reference to Fig. 1, a kind of uninterruptible power system, comprise main charger and stand-by power supply device, this system also comprises control of overcurrent time and the major-minor machine selection circuit 108 that is connected with the stand-by power supply device with described main charger, 220V relay 103,60V relay 110, city's power detection circuit 113, instrument transformer 105, transformer 104, over-current detection circuit 106, transformation rectification circuit 114, output circuit 111, civil power input circuit 101, over-current control circuit 107 and plucking number sign switch 109, wherein: by instrument transformer 105, over-current detection circuit 106, the flow control system excessively that over-current control circuit 107 is formed, by toggle switch 109, overcurrent selection of time and major-minor machine selective system that control of overcurrent time and major-minor machine select circuit 108 to form, described civil power input circuit 101, city's power detection circuit 113, transformer 104, instrument transformer 105, over-current detection circuit 106, over-current control circuit 107, control of overcurrent time and major-minor machine select circuit 108 and plucking number sign switch 109 to connect successively, described instrument transformer 105 also connects described 60V relay 110, described 60V relay 110 connects described output circuit 111, described over-current control circuit 107 connects described 60V relay 110, described output circuit 111 connects described power supply change-over circuit 112, described power supply change-over circuit 112 connects described city power detection circuit 113, and described transformation rectification circuit 114 is connected between described city power detection circuit 113 and the civil power input circuit 101.
In this embodiment, described system also comprises lightning protection circuit 102, described lightning protection circuit 102 is connected between civil power input circuit 101 and the described 220V relay 103, and described lightning protection circuit 102 is connected between civil power input circuit 101 and the transformation rectification circuit 114.Lightning protection circuit 102 is used to prevent that this system is struck by lightning with the equipment that is connected this system.
In an embodiment, described system also comprises operating state indicating circuit 115, and described operating state indicating circuit 115 is in parallel with described power supply change-over circuit 112.This operating state indicating circuit 115 is used to indicate the operating state of this system.
The uninterruptible power system course of work that present embodiment provides is: 220V civil power process civil power input circuit 101, lightning protection circuit 102,220V relay 103, transformer 104 transformations are behind 60V, be input to instrument transformer 105, arrive output circuit 111 through 60V relay 110 again.Control of overcurrent time and major-minor machine that toggle switch 109, NE555 chip are formed are selected circuit 108.When on the different circuits through the 60V voltage of charger output after the stack of instrument transformer 105 places; instrument transformer 105 detected electric currents are big more; then induced voltage is just high more; be higher than when induced voltage behind the voltage of setting by being transferred to the NE555 chip behind the over-current detection circuit 107; finished over-current detection thus; after the NE555 circuit receives the over-current signal that over-current detection circuit 107 transmits; the NE555 chip produces control action; control 60V relay 110 disconnects; finished the process of crossing current control thus, caused short-circuit protection, every charger all enters the overcurrent protection state; 60V relay 110 disconnects, not output.By toggle switch 109; control of overcurrent time and major-minor machine that the NE555 chip is formed select circuit 108 can select different guard times; also simultaneously just selected any platform charger as main charger; which platform charger is the stand-by power supply device; it is just different that toggle switch 109 pushes the different guarded by location time; the guard time that general main charger is provided with is for the shortest; the control of change-over circuit 112 because city's power detection circuit 113 is powered; after main charger restores electricity at first; from the 60V Voltage Feedback of main charger output to every stand-by power supply device; the 220V input relay 103 that main charger is controlled other stand-by power supply device disconnects; after stand-by power supply device guard mode is recovered; after even city's power detection circuit 113 has detected civil power; also will enter holding state; when main charger has a power failure; main charger does not have 60V voltage output, and main charger is to the control cancellation of stand-by power supply device, and wherein a stand-by power supply device begins power supply after above process.
When the uninterruptible power system that the utility model provides can not be worked at main charger, in time select circuit to select standby charger to provide electric power for equipment by control of overcurrent time and major-minor machine, and the uninterruptible power system cost that the utility model provides is low, safeguard simple, can deal with long power failure, and the tool warm standby function.When the uninterruptible power system that present embodiment provides is applied in the cable TV network, compare with the cable TV network of the single charger of use in the prior art, use the cable TV network of this system can guarantee to realize continual transmitting television signals, compare with the cable TV network that uses the 60vUPS power supply, this system cost is low, safeguard simply, can deal with long power failure, and the tool warm standby function; Use this system to have very high cost performance as the cable TV network power supply.
More than a kind of uninterruptible power system that the utility model embodiment is provided be described in detail, for one of ordinary skill in the art, thought according to the utility model embodiment, part in specific embodiments and applications all can change, in sum, this description should not be construed as restriction of the present utility model.
Claims (1)
1, a kind of uninterruptible power system, comprise main charger and stand-by power supply device, it is characterized in that, this system also comprises control of overcurrent time and the major-minor machine selection circuit that is connected with the stand-by power supply device with described main charger, the 220V relay, the 60V relay, city's power detection circuit, transformer, the transformation rectification circuit, output circuit, the civil power input circuit, by instrument transformer, over-current detection circuit, the flow control system excessively that over-current control circuit is formed, by toggle switch, overcurrent selection of time and major-minor machine selective system that control of overcurrent time and major-minor machine select circuit to form, wherein:
Described city power detection circuit, transformer, instrument transformer, over-current detection circuit, over-current control circuit, control of overcurrent time and major-minor machine select circuit and plucking number sign switch to connect successively, control of overcurrent time and major-minor machine select circuit to be connected with the stand-by power supply device with described main charger, described instrument transformer also connects described 60V relay, described 60V relay connects described output circuit, described over-current control circuit connects described 60V relay, described output circuit connects described power supply change-over circuit, described power supply change-over circuit connects described city power detection circuit, and described transformation rectification circuit is connected between described city power detection circuit and the civil power input circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202348315U CN201336581Y (en) | 2008-12-05 | 2008-12-05 | Uninterrupted power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202348315U CN201336581Y (en) | 2008-12-05 | 2008-12-05 | Uninterrupted power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201336581Y true CN201336581Y (en) | 2009-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202348315U Expired - Fee Related CN201336581Y (en) | 2008-12-05 | 2008-12-05 | Uninterrupted power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201336581Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122830A (en) * | 2010-12-02 | 2011-07-13 | 广东中商国通电子有限公司 | Charging mechanism for electric vehicles |
-
2008
- 2008-12-05 CN CNU2008202348315U patent/CN201336581Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122830A (en) * | 2010-12-02 | 2011-07-13 | 广东中商国通电子有限公司 | Charging mechanism for electric vehicles |
| CN102122830B (en) * | 2010-12-02 | 2012-10-03 | 广东中商国通电子有限公司 | Charging mechanism for electric vehicles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20101205 |