CN204302468U - Lithium battery on-line monitoring early warning system - Google Patents
Lithium battery on-line monitoring early warning system Download PDFInfo
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- CN204302468U CN204302468U CN201520008925.0U CN201520008925U CN204302468U CN 204302468 U CN204302468 U CN 204302468U CN 201520008925 U CN201520008925 U CN 201520008925U CN 204302468 U CN204302468 U CN 204302468U
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- lithium battery
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- treatment circuit
- early warning
- warning system
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 62
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000007781 pre-processing Methods 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 231100000486 side effect Toxicity 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Abstract
A kind of lithium battery on-line monitoring early warning system that the utility model provides, the output module comprising the detection module for detecting lithium battery operation conditions, the processing module be connected with described detection module and be connected with described processing module; Described detection module comprises the current detecting unit for detecting lithium battery running current and the voltage detection unit for detecting lithium battery working voltage, lithium battery on-line monitoring early warning system of the present utility model, can can comprise charging/discharging voltage, charging and discharging currents and dump energy to lithium battery in the running of lithium battery accurately to monitor, and can early warning be made in time according to monitoring result and notify that user processes in time, effectively extend the service life of lithium battery; And the degree of accuracy of monitoring is high.
Description
Technical field
The utility model relates to Li-Battery monitor field, particularly relates to a kind of lithium battery on-line monitoring early warning system.
Background technology
Lithium battery relies on that its operating voltage is high, volume is little, quality is light, energy is high, memory-less effect, pollution-free, self discharge is little, have extended cycle life, the advantage such as pollution-free obtains increasing application, lithium battery is widely used in the accumulation power supply systems such as waterpower, firepower, wind-force and solar power station, the uninterrupted power source of post and telecommunications, and multiple field such as electric tool, electric bicycle, battery-operated motor cycle, electric automobile, military equipment, Aero-Space.
But, lithium battery also has himself shortcoming, such as when lithium cell charging voltage is higher than its rated voltage, then lithium battery interior is had side effects, and when after lithium battery electric discharge, voltage is lower than certain magnitude of voltage, the inside of same lithium battery can have side effects, can produce expendable consequence time serious, therefore, the monitoring for lithium battery just seems very important, but, also do not have a kind of monitoring system to carry out the equipment of effective monitoring to the running of lithium battery at present.
Therefore, need to propose a kind of lithium battery on-line monitoring early warning system, can can comprise charging/discharging voltage, charging and discharging currents and dump energy to lithium battery in the running of lithium battery accurately to monitor, and can early warning be made in time according to monitoring result and notify that user processes in time; And the degree of accuracy of monitoring is high.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of lithium battery on-line monitoring early warning system, can can comprise charging/discharging voltage, charging and discharging currents and dump energy to lithium battery in the running of lithium battery accurately to monitor, and can early warning be made in time according to monitoring result and notify that user processes in time; And the degree of accuracy of monitoring is high.
A kind of lithium battery on-line monitoring early warning system that the utility model provides, the output module comprising the detection module for detecting lithium battery operation conditions, the processing module be connected with described detection module and be connected with described processing module;
Described detection module comprises the current detecting unit for detecting lithium battery running current and the voltage detection unit for detecting lithium battery working voltage;
Described processing module comprises the preprocessing unit be connected with described detection module output, the comparison circuit be connected with described preposing signal process circuit output, the first treatment circuit be connected with described comparison circuit output, the second treatment circuit be connected with described preprocessing unit and the timer be connected with described first treatment circuit, and described second treatment circuit is also connected with the first treatment circuit;
Described output module comprises the alarm be connected with described first treatment circuit and the display be connected with described second treatment circuit and the first treatment circuit;
Described early warning system also comprises charge-discharge protection circuit; described charge-discharge protection circuit comprises relay J 1, triode Q1, light emitting diode D1 for controlling charging and discharging lithium battery path break-make; the base stage of described triode Q1 is connected with the first treatment circuit; the colelctor electrode of triode Q1 connects power supply by the coil of relay J 1; the emitter stage of described triode Q1 is connected with the positive pole of light emitting diode D1, the minus earth of light emitting diode D1.
Further, described processing module also comprises the memory be connected with the second treatment circuit respectively at described first treatment circuit.
Further, described preposing signal process circuit comprises the amplifying circuit, filter circuit and the analog to digital conversion circuit that connect successively, the input of described amplifying circuit is connected with the output of detection module, and the output of analog-digital conversion circuit as described is connected with the input of described comparison circuit and the second treatment circuit.
Further, described first treatment circuit and the second treatment circuit are single-chip microcomputer or integrated chip.
Further, described relay J 1 is normally closed relay.
Further, described alarm is audible-visual annunciator.
The beneficial effects of the utility model: lithium battery on-line monitoring early warning system of the present utility model, can can comprise charging/discharging voltage, charging and discharging currents and dump energy to lithium battery in the running of lithium battery accurately to monitor, and can early warning be made in time according to monitoring result and notify that user processes in time, effectively extend the service life of lithium battery; And the degree of accuracy of monitoring is high.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is the utility model theory diagram.
Detailed description of the invention
Fig. 1 is theory diagram of the present utility model, as shown in the figure, a kind of lithium battery on-line monitoring early warning system that the utility model provides, the output module comprising the detection module for detecting lithium battery operation conditions, the processing module be connected with described detection module and be connected with described processing module;
Described detection module comprises the current detecting unit for detecting lithium battery running current and the voltage detection unit for detecting lithium battery working voltage, wherein, voltage detection unit and current detecting unit adopt corresponding sensor or adopt existing voltage sampling circuit and current sampling circuit, and voltage detection unit input is connected to the points of common connection of the positive pole of lithium battery and the K switch 1 of relay J 1, the input of current detecting unit is connected to the points of common connection between the K switch 1 of relay J 1 and the fan-out of lithium battery, wherein, the input/output terminal of lithium battery can arrange interface, conveniently be connected with electrical equipment and charging equipment,
Described processing module comprises the preprocessing unit be connected with described detection module output, the comparison circuit be connected with described preposing signal process circuit output, the first treatment circuit be connected with described comparison circuit output, the second treatment circuit be connected with described preprocessing unit and the timer be connected with described first treatment circuit, described second treatment circuit is also connected with the first treatment circuit, wherein, described first treatment circuit and the second treatment circuit are single-chip microcomputer or integrated chip;
Described output module comprises the alarm be connected with described first treatment circuit and the display be connected with described second treatment circuit and the first treatment circuit, and described alarm is audible-visual annunciator;
Described early warning system also comprises charge-discharge protection circuit, described charge-discharge protection circuit comprises relay J 1, triode Q1, light emitting diode D1 for controlling charging and discharging lithium battery path break-make, the base stage of described triode Q1 is connected with the first treatment circuit, the colelctor electrode of triode Q1 connects power supply by the coil of relay J 1, the emitter stage of described triode Q1 is connected with the positive pole of light emitting diode D1, the minus earth of light emitting diode D1; Described relay J 1 is normally closed relay;
Wherein, voltage threshold and current threshold is provided with in comparison circuit, in charging process, the real-time voltage detected when voltage detection unit is higher than the moment of the rated voltage (i.e. upper threshold) of lithium battery, comparison circuit exports comparative result, timer starts timing, when real-time voltage exceedes setting-up time higher than time of rated voltage (can sets itself, such as 20S, this time lithium battery voltage can be made to reach rated voltage after and be in stable state), then the first treatment circuit exports control command, alarm starts to report to the police, when in discharge process, when the real-time voltage that voltage detection unit detects is lower than bottom threshold, comparative result is outputted to the first treatment circuit and the direct output alarm order of the first treatment circuit pass through alarm equipment alarm by comparison circuit, when measured current exceedes the threshold value of setting, first treatment circuit output alarm signal is also reported to the police, such as: when electricity consumption load wiring is bad, the impedance of the circuit in loop will be increased, therefore electric current reduces, thus make the electric current of lithium battery be less than the threshold value of setting, or the situation of electricity consumption loop short circuit, electric current is greater than the threshold range of setting, thus the first treatment circuit output alarm signal, certainly, the threshold range of electric current sets according to unequally loaded impedance operator, and while the first treatment circuit output alarm instruction, first treatment circuit exports high level to triode Q1, control triode Q1 conducting, thus the coil of relay J 1 obtain electric after, gauge tap K1 disconnects, and light emitting diode D1 is luminous, thus show that protection circuit is in guard mode, prevent from over-charge of lithium battery or cross putting phenomenon, and then effectively extend the service life of lithium battery, light emitting diode D1 luminescence notifies that user cuts off charge power supply or cuts off supply access, the data of the second treatment circuit receiver voltage detecting unit and current detecting unit Real-Time Monitoring, and estimate the dump energy of lithium battery, and dump energy and corresponding voltage status are fitted to curve, wherein, second treatment circuit carries out matching by existing program to curve, and the estimation of dump energy is carried out by existing formula, by to the matching of curve and the estimation of dump energy, lithium battery loss situation in use can be understood, user can make accurately suitable decision-making according to its changing condition, such as determine that can the lithium battery of existing use also meet the needs of electrical equipment, as can not, then change, first treatment circuit and the parameter of the second treatment circuit in processing procedure and the curve of generation, all shown by display, facilitate user to observe, and, by above-mentioned structure, can detect the open-circuit voltage of battery, but also can detect the discharge time of lithium battery, wherein, the first treatment circuit and the second treatment circuit can redundancies each other, increase the stability of native system.
In the present embodiment, described processing module also comprises the memory be connected with the second treatment circuit respectively at described first treatment circuit, memory is for carrying out record by the parameter in the course of work of the first treatment circuit and the second treatment circuit, be convenient to follow-up use, such as manufacturer, according to the data-guiding development & production of user feedback, improves the quality of products.
In the present embodiment, described preposing signal process circuit comprises the amplifying circuit, filter circuit and the analog to digital conversion circuit that connect successively, the input of described amplifying circuit is connected with the output of detection module, the output of analog-digital conversion circuit as described is connected with the input of described comparison circuit and the second treatment circuit, by the effect of preposing signal process circuit, can prepare for subsequent treatment, improve subsequent treatment efficiency.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (6)
1. a lithium battery on-line monitoring early warning system, is characterized in that: the output module comprising the detection module for detecting lithium battery operation conditions, the processing module be connected with described detection module and be connected with described processing module;
Described detection module comprises the current detecting unit for detecting lithium battery running current and the voltage detection unit for detecting lithium battery working voltage;
Described processing module comprises the preprocessing unit be connected with described detection module output, the comparison circuit be connected with described preposing signal process circuit output, the first treatment circuit be connected with described comparison circuit output, the second treatment circuit be connected with described preprocessing unit and the timer be connected with described first treatment circuit, and described second treatment circuit is also connected with the first treatment circuit;
Described output module comprises the alarm be connected with described first treatment circuit and the display be connected with described second treatment circuit and the first treatment circuit;
Described early warning system also comprises charge-discharge protection circuit; described charge-discharge protection circuit comprises relay J 1, triode Q1, light emitting diode D1 for controlling charging and discharging lithium battery path break-make; the base stage of described triode Q1 is connected with the first treatment circuit; the colelctor electrode of triode Q1 connects power supply by the coil of relay J 1; the emitter stage of described triode Q1 is connected with the positive pole of light emitting diode D1, the minus earth of light emitting diode D1.
2. lithium battery on-line monitoring early warning system according to claim 1, is characterized in that: described processing module also comprises the memory be connected with the second treatment circuit respectively at described first treatment circuit.
3. lithium battery on-line monitoring early warning system according to claim 1, it is characterized in that: described preposing signal process circuit comprises the amplifying circuit, filter circuit and the analog to digital conversion circuit that connect successively, the input of described amplifying circuit is connected with the output of detection module, and the output of analog-digital conversion circuit as described is connected with the input of described comparison circuit and the second treatment circuit.
4. lithium battery on-line checkingi early warning system according to claim 1, is characterized in that: described first treatment circuit and the second treatment circuit are single-chip microcomputer or integrated chip.
5. lithium battery on-line monitoring early warning system according to claim 1, is characterized in that: described relay J 1 is normally closed relay.
6. lithium battery on-line monitoring early warning system according to claim 1, is characterized in that: described alarm is audible-visual annunciator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520008925.0U CN204302468U (en) | 2015-01-07 | 2015-01-07 | Lithium battery on-line monitoring early warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520008925.0U CN204302468U (en) | 2015-01-07 | 2015-01-07 | Lithium battery on-line monitoring early warning system |
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| Publication Number | Publication Date |
|---|---|
| CN204302468U true CN204302468U (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520008925.0U Expired - Fee Related CN204302468U (en) | 2015-01-07 | 2015-01-07 | Lithium battery on-line monitoring early warning system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785276A (en) * | 2016-03-10 | 2016-07-20 | 杭州电子科技大学 | Low-power-consumption power monitoring circuit |
| CN106207981A (en) * | 2016-08-26 | 2016-12-07 | 陈节庆 | A kind of automatic protective system of battery |
| CN107064803A (en) * | 2016-12-16 | 2017-08-18 | 蔚来汽车有限公司 | The online test method of battery internal short-circuit |
-
2015
- 2015-01-07 CN CN201520008925.0U patent/CN204302468U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785276A (en) * | 2016-03-10 | 2016-07-20 | 杭州电子科技大学 | Low-power-consumption power monitoring circuit |
| CN105785276B (en) * | 2016-03-10 | 2018-11-02 | 杭州电子科技大学 | A kind of power supply supervisory circuit of low-power consumption |
| CN106207981A (en) * | 2016-08-26 | 2016-12-07 | 陈节庆 | A kind of automatic protective system of battery |
| CN106207981B (en) * | 2016-08-26 | 2018-06-19 | 惠亚电子科技（深圳）有限公司 | A kind of automatic protective system of battery |
| CN107064803A (en) * | 2016-12-16 | 2017-08-18 | 蔚来汽车有限公司 | The online test method of battery internal short-circuit |
| US10809302B2 (en) | 2016-12-16 | 2020-10-20 | Nio Nextev Limited | Online detection method for internal short-circuit of battery |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20160107 |