CN202815145U - UPS storage battery circuit break detection apparatus - Google Patents
UPS storage battery circuit break detection apparatus Download PDFInfo
- Publication number
- CN202815145U CN202815145U CN 201220522172 CN201220522172U CN202815145U CN 202815145 U CN202815145 U CN 202815145U CN 201220522172 CN201220522172 CN 201220522172 CN 201220522172 U CN201220522172 U CN 201220522172U CN 202815145 U CN202815145 U CN 202815145U
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- accumulator
- charger
- ups
- control unit
- storage battery
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Disclosed is a UPS storage battery circuit break detection apparatus. A storage battery is charged by a charger. The UPS storage battery circuit break detection apparatus comprises a master control unit controlling the charger and is characterized by further comprising a current sampler connected in series in the charger and used for sending sampled charging current to the master control unit. The UPS storage battery circuit break detection apparatus is capable of performing the on-line circuit break detection of the UPS storage battery and guaranteeing the smoothness of the charging process.
Description
Technical field
The utility model relates to UPS accumulator disconnection detection device.
Background technology
Accumulator is the requisite ingredient of UPS (uninterrupted power source).UPS inputs when normal load supplying, simultaneously by charger to charge in batteries; After the UPS input disconnects, then need to be responsible for power supply by accumulator.The accumulator accident opens circuit when normal if input at UPS; UPS does not in time detect this situation; then UPS just can't power after input disconnects, and this allows UPS lose original defencive function, and this fault is a destructive strike to load that can not interruption of power supply.
Because when accumulator opens circuit, there is not output voltage, so traditional UPS accumulator broken circuit detecting method is to judge according to the size of cell voltage whether accumulator opens circuit, particularly, default threshold voltage, if record the accumulator current voltage greater than threshold voltage then judge accumulator and do not open circuit, if record the accumulator current voltage less than threshold voltage then judge accumulator and open circuit.But the 1st page of latter end of patent documentation CN1157926A instructions pointed out, charger directly links to each other with battery the two poles of the earth, it is the voltage of charger or the voltage of accumulator that detection means can't be told measured, suppose that accumulator opens circuit, but charger still can output voltage, and detection means records current voltage greater than threshold value, thinks that accumulator does not open circuit, but measured is the voltage of charger in fact, and accumulator in fact opens circuit.The 1st page of latter end of patent documentation CN1157926A instructions provided the method that detects again cell voltage behind the charge closing device simultaneously.In addition, some traditional UPS accumulator broken circuit detecting method need to be closed input and the charger of UPS, turns by accumulator and is responsible for power supply, detects cell voltage again, judges whether accumulator opens circuit.Above-mentioned existing solution can affect the normal operation of UPS and the fluency of charging process.
Summary of the invention
The purpose of this utility model is to provide a kind of UPS accumulator disconnection detection device, can realize online the detection of opening circuit of UPS accumulator, and guarantee the fluency of charging process.
The inventor recognizes, in the situation that charger has been opened, supposes that accumulator does not open circuit, as long as the accumulator electric energy is not in the saturation region, charger will be with enough large electric current to charge in batteries.
Under this thinking, provide UPS accumulator disconnection detection device, described accumulator is accepted charging by charger, this UPS accumulator disconnection detection device comprises the main control unit of controlling charger, it is characterized in that, comprise the current sampler that is serially connected in the charger, current sampler sends to main control unit to the charging current of sampling.
Sample charging current in the charger and send to main control unit because current sampler is serially connected in, so main control unit in the situation that charger has been opened, does not open circuit if charging current enough greatly just is enough to judge accumulator.For said circumstances, main control unit need not the charge closing device, and the detection of opening circuit that can carry out the UPS accumulator online can not affect the work of UPS main circuit, and make charging process more smooth.Be used for to weigh charging current whether enough large threshold current be to be preset in as the case may be main control unit.
In the situation that charger has been opened, even accumulator does not open circuit, if but the accumulator electric energy is in the saturation region, and charging current is large not, and whether can't judge immediately accumulator and open circuit this moment.Main control unit is closed charger at set intervals one time, the voltage-level detector that is connected on the battery terminal sends to main control unit to the cell voltage that detects, then main control unit judges according to the size of cell voltage whether accumulator opens circuit, do not open circuit if enough judge greatly accumulator according to cell voltage, then under the prerequisite that accumulator does not overcharge, reopen charger.
In the situation that charger is not opened, main control unit just directly judges according to the size of cell voltage whether accumulator opens circuit.
Description of drawings
Fig. 1 is the schematic diagram that carries out current sample and voltage detecting in charger.
Fig. 2 is UPS accumulator disconnection detection device structured flowchart.
Embodiment
Such as Fig. 1,2, accumulator is accepted the charging of UPS input by charger.Charger comprises power switch tube S 1, sustained diode 1, energy storage inductor L1, filter capacitor C1 and thyristor Q1.
UPS accumulator disconnection detection device comprises the main control unit of controlling charger, comprises the current sampler CT1 that is serially connected in the charger, and current sampler CT1 sends to main control unit to the charging current of sampling.UPS accumulator disconnection detection device also comprises the voltage-level detector VT1 that is connected on the battery terminal, and voltage-level detector VT1 sends to main control unit to the cell voltage that detects.
Main control unit judges at first whether charger is opened.
In the situation that charger is not opened, voltage-level detector VT1 detects cell voltage and sends to main control unit, and main control unit directly judges according to the size of cell voltage whether accumulator opens circuit.
In the situation that charger has been opened, current sampler CT1 sampling charging current sends to main control unit: if charging current enough greatly main control unit judge accumulator and do not open circuit; If charging current is large not, then main control unit comes the charge closing device by closing switch pipe S1 and thyristor Q1 at set intervals, voltage-level detector VT1 detects cell voltage and sends to main control unit, main control unit judges according to the size of cell voltage whether accumulator opens circuit again, do not open circuit if enough judge greatly accumulator according to cell voltage, then under the prerequisite that accumulator does not overcharge, reopen charger.
Claims (2)
1.UPS accumulator disconnection detection device, described accumulator is accepted charging by charger, this UPS accumulator disconnection detection device comprises the main control unit of controlling charger, it is characterized in that, comprise the current sampler that is serially connected in the charger, current sampler sends to main control unit to the charging current of sampling.
2. UPS accumulator disconnection detection device according to claim 1 is characterized in that, comprise the voltage-level detector that is connected on the battery terminal, voltage-level detector sends to main control unit to the cell voltage that detects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220522172 CN202815145U (en) | 2012-10-12 | 2012-10-12 | UPS storage battery circuit break detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220522172 CN202815145U (en) | 2012-10-12 | 2012-10-12 | UPS storage battery circuit break detection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202815145U true CN202815145U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220522172 Expired - Lifetime CN202815145U (en) | 2012-10-12 | 2012-10-12 | UPS storage battery circuit break detection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202815145U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344870A (en) * | 2013-06-25 | 2013-10-09 | 华为技术有限公司 | Method and device for detecting short circuit of thyristor of uninterrupted power system |
| CN103869257A (en) * | 2014-03-31 | 2014-06-18 | 北京亚安新能航天科技有限公司 | Detection circuit of battery pack in wind power generation pitch system |
| CN105406548A (en) * | 2015-12-23 | 2016-03-16 | 浙江亚能能源科技有限公司 | Method for detecting whether storage battery is on-line or not in charging process of electric fork-lift truck charging machine |
| CN111999662A (en) * | 2020-09-18 | 2020-11-27 | 山特电子（深圳）有限公司 | Method for detecting external switch state of battery of UPS |
| CN113690961A (en) * | 2021-07-06 | 2021-11-23 | 美律电子(深圳)有限公司 | Energy storage device and power supply method thereof |
-
2012
- 2012-10-12 CN CN 201220522172 patent/CN202815145U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344870A (en) * | 2013-06-25 | 2013-10-09 | 华为技术有限公司 | Method and device for detecting short circuit of thyristor of uninterrupted power system |
| CN103344870B (en) * | 2013-06-25 | 2016-01-27 | 华为技术有限公司 | The thyristor method for detecting short circuit of uninterruptible power system and device |
| CN103869257A (en) * | 2014-03-31 | 2014-06-18 | 北京亚安新能航天科技有限公司 | Detection circuit of battery pack in wind power generation pitch system |
| CN105406548A (en) * | 2015-12-23 | 2016-03-16 | 浙江亚能能源科技有限公司 | Method for detecting whether storage battery is on-line or not in charging process of electric fork-lift truck charging machine |
| CN105406548B (en) * | 2015-12-23 | 2018-03-09 | 浙江亚能能源科技有限公司 | The whether online detection method of battery in electri forklift charger charging process |
| CN111999662A (en) * | 2020-09-18 | 2020-11-27 | 山特电子（深圳）有限公司 | Method for detecting external switch state of battery of UPS |
| CN111999662B (en) * | 2020-09-18 | 2023-01-06 | 山特电子（深圳）有限公司 | Method for detecting external switch state of battery of UPS |
| CN113690961A (en) * | 2021-07-06 | 2021-11-23 | 美律电子(深圳)有限公司 | Energy storage device and power supply method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |
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| CX01 | Expiry of patent term |