CN103777145A - Storage battery intelligent monitoring and maintenance apparatus with functions of testing voltage and load discharge - Google Patents
Storage battery intelligent monitoring and maintenance apparatus with functions of testing voltage and load discharge Download PDFInfo
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- CN103777145A CN103777145A CN201310061005.0A CN201310061005A CN103777145A CN 103777145 A CN103777145 A CN 103777145A CN 201310061005 A CN201310061005 A CN 201310061005A CN 103777145 A CN103777145 A CN 103777145A
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- circuit
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- accumulator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
- H02H5/042—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using temperature dependent resistors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Tests Of Electric Status Of Batteries (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
This invention discloses a storage battery intelligent monitoring and maintenance apparatus with functions of testing voltage and load discharge, which can perform testing on the voltage, final discharging voltage and discharging current on the storage battery under an online or offline state. A control power supply circuit of the storage battery intelligent monitoring and maintenance apparatus with functions of testing voltage and load discharge consists of a power supply circuit for self power supply of the storage battery and an external power supply circuit possessing a preferred power supply function. The storage battery intelligent monitoring and maintenance apparatus with functions of testing voltage and load discharge is serially connected to an over-temperature protection member. When a switch member in a discharging circuit is out of control and the discharging load exceeds the tolerant temperature value of the over-temperature protection member, the over-temperature protection member cuts off the discharging circuit.
Description
Affiliated technical field
The present invention relates to a kind of accumulator monitoring and attending device with voltage and load discharge test function, especially can under accumulator off-line or presence, carry out voltage to accumulator and load discharge end of a period voltage, discharge current are tested.
Background technology
At present the accumulator monitoring of known various off-lines (accumulator disconnects with charger) or online (accumulator and charger closure) and the attending device overwhelming majority are to differentiate the state of accumulator from the voltage of measurement accumulator and internal resistance, but when accumulator is under floating charge state and due to the nonlinear characteristic of accumulator internal resistance, only according to measuring the real-time voltage of accumulator and the result of internal resistance, sometimes can not judge exactly the state of accumulator, and it is higher than measuring voltage technical requirement to measure accumulator internal resistance, therefore there is the storage battery monitoring device of internal resistance measurement function, its cost is higher, and the current existing device of testing battery discharging end of a period voltage and judge battery condition by load discharge, the working power of its internal control circuit is powered by accumulator self, when the intelligent battery of this device is housed is arranged on the power-supply system of advanced battery management (ABM) function, when as middle in some uninterruptible power system (UPS), the accumulator most of the time is operated in the state of long-time low discharging current, and this can have influence on the life-span of accumulator, in addition, in the discharge circuit in current existing intelligent battery, there is no over-temperature protection device, in the time that the electronic switching device in discharge circuit is out of control, consequence that will bringing on a disaster property of accumulators electric power system.
Summary of the invention
The present invention relates to a kind of intelligent accummulator monitoring and attending device with voltage and load discharge test function, the working power circuit that it is characterized in that control circuit is by the power circuit of accumulator self power supply and form from the power circuit with preferential function of supplying power of outside; In the time there is no external power source, the working power of this device control circuit is provided by accumulator self, and in the time having external power source, the working power of this device control circuit is by providing from outside power supply; In the discharge circuit of this device, string has an overheat protector device, and in the time that the out of control and guiding discharge load of the switching device in discharge circuit exceedes the temperature value of overheat protector device tolerance, overheat protector device will cut off discharge circuit.This device can be arranged on all accumulators independently, and becomes intelligent battery; Under the control of this intelligent battery processor control program with timer at device itself, can carry out to accumulator voltage and load discharge test at off-line or under presence, in the time that in the voltage of measurement and the end of a period voltage of load discharge test and processor program, predefined value relatively notes abnormalities, sound, light warning indicating circuit are by alarm.This device be provided with two identical by externally fed and with the RS485 data communication interface of this device main circuit isolation, and an interface in any one device can connect any interface of another device.If increase sample resistance or the current sensor of measuring discharge current in discharge loop, can measure the load discharge electric current of accumulator.
The technical solution adopted in the present invention
This intelligent accummulator monitoring with voltage and load discharge test function and attending device are made up of RS485 communication interface circuit, sound, the light warning indicating circuit of isolating with this device control circuit of the working power circuit of the battery discharging control circuit take processor as control core, discharge circuit with electronic switching device control battery discharging, accumulator voltage detecting circuit, control circuit, externally fed.In the time that needs are measured discharge current, in discharge circuit, increase storage battery current detection circuit.Battery discharging control circuit take processor as control core, the circuit with electronic switching device control battery discharging, accumulator voltage detecting circuit, storage battery current detection circuit harmony, light warning indicating circuit form main circuit of the present invention.Feature of the present invention is: first; in the battery discharging control circuit and discharge circuit take processor as control core; the power electronic switching pipe MOSFET of one or more parallel connections or the drain electrode end of IGBT and one end of ohmic load are connected in series; the other end of pull-up resistor is connected to one end of overheat protector device; the other end of overheat protector device is connected to the positive pole of accumulator; the source terminal of MOSFET or IGBT is connected to the negative pole of accumulator, and Absorption Capacitance is protected in the drain electrode of MOSFET or IGBT and source electrode two ends cross-over connection one.MOSFET or IGBT and pull-up resistor, overheat protector device form the discharge circuit of accumulator.If increase accumulator load discharge current testing circuit, feature of the present invention " first " redescribe for: in the battery discharging control circuit and discharge circuit take processor as control core, the power electronic switching pipe MOSFET of one or more parallel connections or the drain electrode end of IGBT and one end of ohmic load are connected in series, the other end of pull-up resistor is connected to one end of overheat protector device, the other end of overheat protector device is connected to the positive pole of accumulator, the source terminal of MOSFET or IGBT is connected with one end of a current sampling resistor, the other end of current sampling resistor is connected to the negative pole of accumulator.Absorption Capacitance is protected in the drain electrode of MOSFET or IGBT and source electrode two ends cross-over connection one, current sampling resistor two ends cross-over connection one filter capacitor.MOSFET or IGBT and Absorption Capacitance thereof, pull-up resistor, overheat protector device, current sampling resistor and filter capacitor thereof form the discharge circuit of accumulator.Second, in accumulator voltage detecting circuit, form bleeder circuit by two resistance in seriess, the two ends of divider resistance are connected in parallel on accumulator the two poles of the earth again, then by the voltage signal filtering on the divider resistance of connection battery terminal negative, then send into A/D analog to digital converter through a current-limiting resistance, A/D converter converts the simulating signal on divider resistance to digital signal, programmable processor reads binary digit, then is multiplied by the ratio of two divider resistances, just can calculate the magnitude of voltage of tested accumulator.The 3rd, the control power circuit of this device is by the power circuit of accumulator self power supply and form from the power circuit with preferential function of supplying power of outside.By battery-driven power circuit, formed by a DC/DC transducer and anti-backflow diode, the cathode output end of DC/DC transducer is connected with the anode of the stream diode that fell; From the power circuit with preferential function of supplying power of outside, formed with another anti-backflow diode by an AC/DC or DC/DC transducer, or a compact battery and another anti-backflow diode composition, their cathode output end is connected with the anode of anti-backflow diode equally; Finally the negative electrode of two anti-backflow diodes is connected to jointly to the positive pole of this de-vice processor control power supply.For in the time having external power source, have precedence over the DC/DC transducer of accumulator to the processor control power circuit power supply of this device from the AC/DC of external power source or DC/DC transducer or compact battery, will be higher than the voltage from battery-driven anti-backflow diode anode end of connecting with DC/DC transducer from the cathode terminal voltage of the cathode terminal voltage of the anti-backflow diode of connecting with AC/DC or DC/DC transducer of outside or the anti-backflow diode of connecting with compact battery.The 4th, two alarm lamps of the end of a period voltage when test of battery tension and load discharge and two digital input/output ports of processor are connected, a digital input/output port of hummer and processor is connected, two alarm lamps and hummer formation sound, light warning indicating circuit.The 5th, on each device, arrange two identical by externally fed and with the RS485 data communication interface of this device main circuit isolation.The 6th, this device can independently be arranged on all accumulators, in the accumulator that this device is housed, with upper machine communication whether, the control program of the processor of this device with timer itself can regularly carry out load discharge test to the accumulator under off-line or presence.
In this programme, the accumulator that this device is housed is during at off-line or at presence, under the control of processor program, can measure in real time on the one hand the voltage at accumulator two ends by tension measuring circuit, on the other hand, program can control termly electronic switching tube MOSFET or IGBT makes accumulator discharge by ohmic load, and tension measuring circuit can be measured the electric discharge voltage of end moment, i.e. final discharging voltage.
In this programme, overheat protector device is that conducting resistance is a kind of temperature protection device of milliohm level at overcurrent not with not excess temperature in the situation that, and in the time of overcurrent, conducting resistance increases, and even infinitely great, in the time of excess temperature, device inside disconnects automatically.
Monitoring and attending device that the present invention has voltage and load discharge test function by installation make intelligent accummulator realize voltage and the load discharge test to accumulator, reach the object of accurate judgement accumulator quality, thereby improve the reliability of battery system.
Accompanying drawing explanation
Fig. 1 is the main circuit of embodiment mono-.
Fig. 2 is the working power circuit of processor control circuit.
Fig. 3 by externally fed, have two-way identical and with the RS485 communication interface circuit of main circuit isolation.
Fig. 4 is the main circuit of embodiment bis-
Further illustrate below in conjunction with drawings and Examples.
Embodiment mono-
The present embodiment is only to measure battery tension and load discharge end of a period voltage, and does not measure the scheme of load discharge electric current
Fig. 1 is the main circuit of the present embodiment.
Fig. 2 is the working power circuit of processor control circuit.
Fig. 3 by externally fed, have two-way identical and with the RS485 communication interface circuit of main circuit isolation.
Embodiment
In Fig. 1, in square frame, be in this device take certain processor as core, have a control circuit of A/D converter; BATTERY is tested accumulator; the grid G of power electronic switching pipe M is connected with control circuit; one end of its drain electrode end D and pull-up resistor R1 is connected in series; the other end of pull-up resistor R1 is connected to one end of overheat protector device TP; the other end is connected to the anodal P of accumulator; the source terminal E of power electronic switching pipe M is connected to the negative pole N of accumulator, and capacitor C 1 is the absorption protection electric capacity that is connected to M drain electrode and source electrode two ends.Accumulator BATTERY, load discharge resistance R 1, MOSFET pipe M, capacitor C 1 and temperature protection device TP form discharge circuit.Resistance R 1, R2 form bleeder circuit, after R1 and R2 series connection, be connected respectively to again just (P) negative (N) utmost point two ends of accumulator BATTERY, then by the voltage on positive electricity R3, after capacitor C 2 filtering, then send into the A/D converter of square frame inside.Resistance R 2, R3 capacitor C 2 form voltage detecting circuit.Hummer Buzzer, light emitting diode V and LTV form warning indicating circuit.RS485_TX/RX, CPU_TXD are 3 connectivity ports that processor control circuit is connected with RS485 communication interface circuit in Fig. 3 with CPU_RXD.
In Fig. 2, BATTERY P INPUT port is the positive terminal of accumulator, accumulator is offered to the required power supply VCC of processor control circuit after DC/DC transducer and anti-backflow diode D1.AC or DC INPUT input port refers to provides the interchange or the direct supply that come from outside, offer the required power supply VCC of processor control circuit through the AC/DC transducer of isolating with transformer Tr or (or) after DC/DC transducer and anti-backflow diode D2.Power to processor control circuit in order to allow outside provide the power supply coming to there is the accumulator of having precedence over, the voltage of D2 cathode terminal output will be higher than the voltage of D1 anode tap output, like this in the situation that having external power source, install inner processor control circuit by the electric energy of battery consumption hardly, thereby can not have influence on the life-span of accumulator.G1, G2 be with Fig. 3 in the same ground of the RS485 communication interface circuit of isolating.In Fig. 3, ADM2483BRW is the RS485 Special Interface Chip of band isolation.RS485_TX/RX, CPU_TXD are the interfaces being connected with processor control circuit with CPU_RXD, its internal circuit power supply and processor control circuit power sharing VCC; RS485_A1, RS485_B1 are the ports being connected with host computer with RS485_A2, RS485_B2, and VDD1, G1 and VDD2, G2 are the direct supplys by externally fed; RS485_A1, RS485_B1, VDD1, G1 and RS485_A2, RS485_B2, VDD2, G2 are called as two identical RS485 communication interfaces by externally fed on device.The object that on device these two identical interfaces is set be convenient to other accumulator on same device be concatenated into bus structure.
In the present embodiment, no matter accumulator BATTERY is in off-line state or presence, under the control of processor program control circuit, can measure in real time on the one hand the voltage at accumulator two ends by R2, R3, C2 and A/D converter circuit, on the other hand, program can be controlled electronic switching tube M termly, making accumulator pass through ohmic load R1 discharges, by measuring voltage on R3, sending into A/D converter again, cpu control circuit just can be measured the electric discharge magnitude of voltage of end moment, i.e. final discharging voltage.
In the present embodiment, in the time finding that the end of a period voltage of the real-time voltage of accumulator or load discharge test exceeds in processor program predefined scope, on device, corresponding alarm lamp V, LTV will glimmer, and the while, hummer BUZZER had audible alarm.
Embodiment bis-
The present embodiment is the scheme of measuring battery tension, load discharge end of a period voltage and load discharge electric current
Fig. 4 is the main circuit of the present embodiment.
Fig. 2 is the working power circuit of processor control circuit.
Fig. 3 by externally fed, have two-way identical and with the RS485 communication interface circuit of main circuit isolation.
" working power circuit of processor control circuit " of the present embodiment and " by externally fed, have an identical RS485 communication interface circuit of two-way " identical with embodiment mono-.
Embodiment
In Fig. 4, in square frame, be in this device take certain processor as core, have a control circuit of A/D converter, BATTERY is tested accumulator, the grid G of power electronic switching pipe M is connected with control circuit, one end of its drain electrode end D and pull-up resistor R1 is connected in series, the other end of pull-up resistor R1 is connected to one end of overheat protector device TP, the other end is connected to the anodal P of accumulator, the source terminal E of power electronic switching pipe M is connected to one end of current sampling resistor R4, the other end of current sampling resistor R4 is connected to the negative pole N of accumulator, voltage on R4 is sent into a port of A/D converter after C3 filtering, current sampling resistor R4, filter capacitor C3 and A/D converter composition discharge current testing circuit, capacitor C 1 is the absorption protection electric capacity that is connected to M drain electrode and source electrode two ends.Accumulator BATTERY, load discharge resistance R 1, MOSFET pipe M, capacitor C 1 and temperature protection device TP form discharge circuit.Resistance R 1, R2 form bleeder circuit, after R1 and R2 series connection, be connected respectively to again just (P) negative (N) utmost point two ends of accumulator BATTERY, then by the voltage in resistance R 3, after capacitor C 2 filtering, then send into the A/D converter of square frame inside.Resistance R 2, R3, capacitor C 2 and A/D converter composition voltage detecting circuit.Hummer Buzzer, light emitting diode V and LTV form warning indicating circuit.RS485_TX/RX, CPU_TXD are 3 connectivity ports that processor control circuit is connected with RS485 communication interface circuit in Fig. 3 with CPU_RXD.
" working power circuit of processor control circuit " of the present embodiment and " by externally fed, have an identical RS485 communication interface circuit of two-way " identical with embodiment mono-, i.e. Fig. 2 and Fig. 3 effect is in the present embodiment with identical in embodiment mono-.
In the present embodiment, no matter accumulator BATTERY is in off-line state or presence, under the control of processor program control circuit, can measure in real time on the one hand the voltage at accumulator two ends by R2, R3, C2 and A/D converter circuit, on the other hand, program can be controlled electronic switching tube M termly, makes accumulator pass through ohmic load R1 and discharges, just can measure the electric discharge magnitude of voltage of end moment, i.e. final discharging voltage by tension measuring circuit, A/D converter and processor.By measuring the voltage on sample resistance R4, then send into A/D converter, cpu control circuit just can calculate accumulator load discharge current.
In the present embodiment, in the time finding that the end of a period voltage of the real-time voltage of accumulator or load discharge test exceeds in processor program predefined scope, on device, corresponding alarm lamp V, LTV will glimmer, and the while, hummer BUZZER had audible alarm.If measure again the variation of accumulator both end voltage after electric discharge finishes, utilize Ohm law, just can calculate the internal resistance of accumulator.
Claims (4)
1. there is intelligent accummulator monitoring and the attending device of voltage and load discharge test function, it can under accumulator off-line or presence, carry out voltage to accumulator and load discharge end of a period voltage, discharge current are tested, and the working power circuit that it is characterized in that this device control circuit is by the power circuit of accumulator self power supply and form from the power circuit with preferential function of supplying power of outside; In the time there is no external power source, the working power of this device control circuit is provided by accumulator self, and in the time having external power source, the working power of this device control circuit is by providing from outside power supply; In the discharge circuit of this device, string has an overheat protector device, and in the time that the out of control and guiding discharge load of the switching device in discharge circuit exceedes the temperature value of overheat protector device tolerance, overheat protector device will cut off discharge circuit.
2. intelligent accummulator monitoring and the attending device with voltage and load discharge test function according to claim 1, this device can be arranged on all accumulators independently, and becomes intelligent battery; Under the control of this intelligent battery processor control program with timer at device itself, can carry out to accumulator voltage and load discharge test at off-line or under presence, in the time that in the voltage of measurement and the end of a period voltage of load discharge test and processor program, predefined value relatively notes abnormalities, sound, light warning indicating circuit are by alarm.
3. intelligent accummulator monitoring and the attending device with voltage and load discharge test function according to claim 1, this device be provided with two identical by externally fed and with the RS485 data communication interface of this device main circuit isolation, and an interface in any one device can connect any interface of another device.
4. intelligent accummulator monitoring and the attending device with voltage and load discharge test function according to claim 1, this device increases sample resistance or the current sensor of measuring discharge current in discharge loop, can measure the load discharge electric current of accumulator.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061005.0A CN103777145A (en) | 2013-02-27 | 2013-02-27 | Storage battery intelligent monitoring and maintenance apparatus with functions of testing voltage and load discharge |
| PCT/CN2013/001436 WO2014131143A1 (en) | 2013-02-27 | 2013-11-25 | Storage battery intelligent monitoring and maintenance apparatus having voltage and load discharge testing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061005.0A CN103777145A (en) | 2013-02-27 | 2013-02-27 | Storage battery intelligent monitoring and maintenance apparatus with functions of testing voltage and load discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103777145A true CN103777145A (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310061005.0A Pending CN103777145A (en) | 2013-02-27 | 2013-02-27 | Storage battery intelligent monitoring and maintenance apparatus with functions of testing voltage and load discharge |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103777145A (en) |
| WO (1) | WO2014131143A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170269162A1 (en) * | 2014-01-15 | 2017-09-21 | LAT Enterprises, Inc., d/b/a MediPak Energy Systems | State-of-charge indicator |
| CN108572319A (en) * | 2017-03-09 | 2018-09-25 | 深圳市三诺声智联股份有限公司 | Batteries in parallel connection set detecting device and method |
| CN109298337A (en) * | 2018-08-27 | 2019-02-01 | 东莞市北斗星电子科技有限公司 | Zero lotus of storage battery and its automatic monitoring big data terminal are transmitted based on UPS module |
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| CN1782729A (en) * | 2004-11-29 | 2006-06-07 | 三星Sdi株式会社 | Apparatus and method for monitoring battery pack |
| CN102208696A (en) * | 2011-04-28 | 2011-10-05 | 常州格力博工具有限公司 | High-capacity lithium battery pack |
| CN102403752A (en) * | 2011-04-12 | 2012-04-04 | 王晓秋 | Discharging control circuit for storage battery and control method thereof |
| US20120185187A1 (en) * | 2011-01-13 | 2012-07-19 | Deeya Energy, Incorporated | Communications system |
| CN202471921U (en) * | 2011-12-30 | 2012-10-03 | 广州泓淮电子科技有限公司 | Storage battery tester |
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2013
- 2013-02-27 CN CN201310061005.0A patent/CN103777145A/en active Pending
- 2013-11-25 WO PCT/CN2013/001436 patent/WO2014131143A1/en active Application Filing
Patent Citations (5)
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| CN1782729A (en) * | 2004-11-29 | 2006-06-07 | 三星Sdi株式会社 | Apparatus and method for monitoring battery pack |
| US20120185187A1 (en) * | 2011-01-13 | 2012-07-19 | Deeya Energy, Incorporated | Communications system |
| CN102403752A (en) * | 2011-04-12 | 2012-04-04 | 王晓秋 | Discharging control circuit for storage battery and control method thereof |
| CN102208696A (en) * | 2011-04-28 | 2011-10-05 | 常州格力博工具有限公司 | High-capacity lithium battery pack |
| CN202471921U (en) * | 2011-12-30 | 2012-10-03 | 广州泓淮电子科技有限公司 | Storage battery tester |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170269162A1 (en) * | 2014-01-15 | 2017-09-21 | LAT Enterprises, Inc., d/b/a MediPak Energy Systems | State-of-charge indicator |
| US10481211B2 (en) * | 2014-01-15 | 2019-11-19 | Lat Enterprises, Inc. | State-of-charge indicator |
| CN108572319A (en) * | 2017-03-09 | 2018-09-25 | 深圳市三诺声智联股份有限公司 | Batteries in parallel connection set detecting device and method |
| CN109298337A (en) * | 2018-08-27 | 2019-02-01 | 东莞市北斗星电子科技有限公司 | Zero lotus of storage battery and its automatic monitoring big data terminal are transmitted based on UPS module |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014131143A1 (en) | 2014-09-04 |
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Application publication date: 20140507 |