CN2682718Y - Real-time on-line uninterrupted DC power supply - Google Patents
Real-time on-line uninterrupted DC power supply Download PDFInfo
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- CN2682718Y CN2682718Y CNU2004200240346U CN200420024034U CN2682718Y CN 2682718 Y CN2682718 Y CN 2682718Y CN U2004200240346 U CNU2004200240346 U CN U2004200240346U CN 200420024034 U CN200420024034 U CN 200420024034U CN 2682718 Y CN2682718 Y CN 2682718Y
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Abstract
The utility model relates to a real-time on-line uninterrupted direct current power supply, comprising an AC/DC transformation module, a secondary battery, a charging unit, and a CPU monitoring unit. The output voltage of the AC/DC transformation module is higher than the output voltage value of the secondary battery; the output circuits of the AC/DC transformation module and the secondary battery are respectively and serially connected with diodes D1, D2; the conduction of the diode D1 can supply electricity to the load by the AC/DC transformation module, and the conduction of the diode D2 can supply the electricity to the load by the secondary battery. The real-time on-line uninterrupted direct current power supply is completely real-time and on-line; the switching time is zero; the secondary battery can afford better protection to the battery without lying in chronic floating state; the battery state can be carried out the real-time detection, the battery performance can be automatically maintained, and the intelligent management can be implemented.
Description
Technical field
The utility model relates to a kind of real-time online type uninterruptible dc power supply.
Background technology
In the modern life, various power supplys be full of we about, along with development of science and technology, the raising day by day of living standards of the people, we are increasing to the demand of uninterrupted DC power supply, require then more and more higher.Existing technology is directly to be parallel between AC/DC module and the load equipment by the output with secondary battery, obtains real-time online, zero switching time; Or by testing circuit, constantly whether power down of detection system determines whether carrying out circuit and switches, and provides out-put supply by secondary battery.
First kind of mode will make secondary battery be in floating charge state always, and this is a cost to sacrifice the secondary battery life-span, for secondary battery, be in floating charge state always, just be in the state of overcharging always, in the course of time, the life-span of battery has just exhausted in wait.Because secondary battery is in floating charge state always, can't judge simultaneously, also just can't realize the intelligent management of battery to the true carrying capacity and the performance of battery.
The second way because system is by the whether power down of continuous detection system, determines whether providing out-put supply by secondary battery, and this will be because of commutation circuit, and can not obtain real-time online, zero switching time.
No matter battery is in any state in the prior art, all adopt with a kind of fixing charge mode, damaged the life-span of battery pack greatly, can't correctly judge the carrying capacity and the performance of battery in addition, owing to lack understanding to the battery truth, will cause battery to close on losing efficacy and do not know, when system's power down, can't obtain enough output, cause the accident.
Owing to do not dispose the module of communication function, can't realize remote monitoring in the prior art.
Because employing modular designs useless when the user has different demand to power, can't be passed through the module of collocation different capacity flexibly, satisfy various requirement in the prior art.
Summary of the invention
The technical problem that the utility model need solve, be in order to overcome in common prior art, uninterrupted DC power supply realizes complete real-time online, zero switching time and avoids secondary battery to be in contradiction between the floating charge state for a long time, and a kind of real-time online type uninterruptible dc power supply that provides.
The utility model is to rely on following technical scheme to realize: a kind of real-time online type uninterruptible dc power supply, and it comprises: the AC/DC conversion module is used for when the alternating current input is arranged AC power being transformed into DC power supply to electric; Secondary battery is used for when not having the input of interchange electric; Charhing unit is used under the control of monitoring unit secondary power supply being charged; The output voltage of described AC/DC conversion module is higher than the output voltage values of secondary battery, be serially connected with diode respectively in the output circuit of described AC/DC conversion module and secondary battery, diode current flow in the AC/DC conversion module output circuit is then powered to the load by the AC/DC modular converter, and the diode current flow in the output circuit of secondary battery is then powered to the load by secondary battery.
In the utility model, described monitoring unit is the cpu monitor unit, be used to detect the state parameter of secondary battery, calculate the carrying capacity of secondary battery, the charging of control charhing unit, described cpu monitor unit is used for the state according to secondary battery, and the control charhing unit carries out little electric current maintenance type charging or common charging to secondary battery.
It also comprises on-the-spot display unit in the utility model, is used for the state parameter of the detected secondary battery in described cpu monitor unit is carried out result's demonstration.
Also comprise the telecommunication unit in addition in the utility model, be used for remote monitoring system mode.
After adopting as above technical scheme, when alternating current input power supplying, the diode current flow that is connected in series with the AC/DC conversion module, the diode that is connected in series with secondary battery ends, out-put supply is provided by the AC/DC conversion module, secondary battery need not to be in common long-term floating charge state, but is in idle state, gives the battery better protection; When not having alternating current input power supplying, the diode that is connected in series with the AC/DC conversion module ends, the diode current flow that is connected in series with secondary battery, and out-put supply is provided by secondary battery, complete real-time online, zero switching time.The cpu monitor unit detects the battery status parameter in real time, as: voltage, electric current, temperature etc., calculate the carrying capacity of secondary battery, according to actual conditions, whether decision charges and charging modes to battery, can effectively avoid under bad working environments battery charge, and overcharge, crosses situation such as put, automatically the battery maintenance performance is carried out intelligent management.The charge-discharge performance of battery is judged according to detected battery status parameter in the cpu monitor unit, by existing sound display unit display result.Have the telecommunication unit, can realize remote monitoring.Whole system adopts modular designs, standard interface, and the module of the different capacity of can arranging in pairs or groups as required satisfies various requirement.
Description of drawings
Below with reference to accompanying drawing the utility model is described in detail.
Fig. 1 is a structured flowchart of the present utility model.
Fig. 2 is a workflow diagram of the present utility model.
Fig. 3 is the software flow pattern of cpu monitor of the present utility model unit.
Embodiment
Embodiment: with reference to accompanying drawing, a kind of real-time online type uninterruptible dc power supply, it comprises: AC/DC conversion module, secondary battery, charhing unit, cpu monitor unit, on-the-spot display unit and telecommunication unit.Charhing unit is connected in series successively with secondary battery, diode D2, connects together and provides DC power supply to load equipment with AC/DC modular converter, diode D1 then.
Combination output nominal voltage is DC48V among the embodiment, and power is the power supply of 1KW, describes, and specific targets are as follows:
Input power supply: AC220V ± 15% or AC110V ± 15%;
Out-put supply: DC48V (44V-54V);
Maximum output current: 20A;
After the AC dump, the powered battery duration is greater than 12h;
The AC/DC conversion module designs in the constant pressure source mode, can adjust AC/DC modular power size according to user's request, and parameter is as follows in the present embodiment:
Input: AC220V ± 15% or AC110V ± 15%;
Output: DC54V ± 0.5V;
Maximum output current: 20A;
Secondary battery can be equipped with different classes of and battery model according to user's request, and parameter is as follows in the present embodiment: nominal voltage DC48V, capacity 40Ah
Charhing unit is by the AC/DC conversion module of cpu monitor unit regulation and control output, can carry out constant current or constant voltage charge as required, and its power also can be according to the user's request adjustment, and parameter is as follows in the present embodiment:
Input: AC220V ± 15% or AC110V ± 15%;
Electric current output area: 0.5A～2A;
Maximum output voltage: DC52V ± 0.1V;
The cpu monitor unit is the core of whole system, and it possesses following function:
The real-time state of monitoring secondary battery in system's running, data such as electric current that can the on-line measurement secondary battery, temperature, voltage are carried out data acquisition; The data of processing, analyzing and testing, the carrying capacity of counting cell group, the health degree of battery according to Mathematical Modeling, carry out SOC estimation and SOH and pass judgment on, and judge according to the management strategy of being scheduled to and determine battery is taked control measures.When battery pack safety threshold values during greater than set point, do not need batteries charging, the state of battery pack can be carried out the scene and show or be sent to host computer by communication interface.When battery pack safety threshold values during, judge whether battery pack provides out-put supply, if, then do not charge in that out-put supply is provided less than set point; If be in idle state, again by judging whether the carrying capacity decision charges.When charge condition is superior and battery health degree during greater than set point, battery pack is carried out common charging, if when charge condition is relatively more abominable, but carrying capacity then carries out little electric current maintenance type charging to battery pack when being lower than the minimum carrying capacity of setting again.
Therefore the cpu monitor unit can realize intelligent charge, discharge, shelve, safeguard, warning etc.; Have self check and diagnostic function, the fault to internal system that can be real-time detects and reports to the police; According to user's request, guarantee the necessary minimum carrying capacity of battery, guarantee AC dump after, the powered battery duration is greater than 12h.
The clear display system state of on-the-spot display unit as: battery charge amount, battery operation state, battery health degree, battery failures warnings, improper use warning, the system failure are reported to the police and are indicated etc., make things convenient for field adjustable, maintenance.
Communication modes and communications protocol can be determined according to user's request in the telecommunication unit, can realize communication with main frame, transmit information needed (as: battery status, system mode etc.) according to user's request.The output voltage U of AC/DC conversion module
mBe 54V, be higher than the output voltage values U of secondary battery
d52V.When alternating current input power supplying, the work of AC/DC conversion module, diode D1 conducting, diode D2 ends, and provides power supply by the AC/DC conversion module to load.When not exchanging input, the AC/DC conversion module is output not, diode D2 conducting, and diode D1 ends, and is powered to the load by secondary battery.
Claims (5)
1, a kind of real-time online type uninterruptible dc power supply, it comprises: the AC/DC conversion module is used for when the alternating current input is arranged AC power being transformed into DC power supply to electric; Secondary battery is used for when not having the input of interchange electric; Charhing unit is used under the control of monitoring unit secondary battery being charged; It is characterized in that the output voltage of described AC/DC conversion module is higher than the output voltage values of secondary battery, be serially connected with diode D1 and D2 respectively in the output circuit of described AC/DC conversion module and secondary battery, described diode D1 conducting is then powered to the load by the AC/DC modular converter, and described diode D2 conducting is then powered to the load by secondary battery.
2, by the described real-time online type uninterruptible dc power supply of claim 1, it is characterized in that: described monitoring unit is the cpu monitor unit, is used to detect the state parameter of secondary battery, calculates the carrying capacity of secondary battery, the charging of control charhing unit.
3, by the described real-time online type uninterruptible dc power supply of claim 2, it is characterized in that: described cpu monitor unit is used for the state according to secondary battery, and the control charhing unit carries out little electric current maintenance type charging or common charging to secondary battery.
4, by the described real-time online type uninterruptible dc power supply of claim 1, it is characterized in that: it also comprises on-the-spot display unit, is used for that the detected battery status parameter in described cpu monitor unit is carried out the result and shows.
5, by the described real-time online type uninterruptible dc power supply of claim 1, it is characterized in that: it also comprises the telecommunication unit, is used for the remote monitoring to system mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200240346U CN2682718Y (en) | 2004-01-06 | 2004-01-06 | Real-time on-line uninterrupted DC power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200240346U CN2682718Y (en) | 2004-01-06 | 2004-01-06 | Real-time on-line uninterrupted DC power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2682718Y true CN2682718Y (en) | 2005-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200240346U Expired - Fee Related CN2682718Y (en) | 2004-01-06 | 2004-01-06 | Real-time on-line uninterrupted DC power supply |
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| Country | Link |
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| CN (1) | CN2682718Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100358213C (en) * | 2004-01-06 | 2007-12-26 | 春兰(集团)公司 | Real time on line uninterrupted direct current power source |
-
2004
- 2004-01-06 CN CNU2004200240346U patent/CN2682718Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100358213C (en) * | 2004-01-06 | 2007-12-26 | 春兰(集团)公司 | Real time on line uninterrupted direct current power source |
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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: 20050302 |