CN104166057A - Lithium battery guard plate testing system - Google Patents
Lithium battery guard plate testing system Download PDFInfo
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- CN104166057A CN104166057A CN201410394296.XA CN201410394296A CN104166057A CN 104166057 A CN104166057 A CN 104166057A CN 201410394296 A CN201410394296 A CN 201410394296A CN 104166057 A CN104166057 A CN 104166057A
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- lithium battery
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- power source
- power supply
- guard plate
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Abstract
The invention discloses a lithium battery guard plate testing system which comprises MOSFETs, a high-precision resistor, a voltage stabilizing power source and a programmable precision power source. The high-precision resistor simulates lithium battery core voltage, simulation of the lithium battery core voltage with high precision is controlled by the two ways of MOSFETs, the MOSFETs are electrically connected with the programmable precision power source and are controlled by the programmable precision power source, and the programmable precision power source is connected with the voltage stabilizing power source. The lithium battery guard plate testing system can better adapt to practical production conditions and be used, functions are clear, simplified operation of personnel is facilitated, professional guard plate tests can be rapidly conducted, and the safety and reliability of a battery pack are better enhanced.
Description
Technical field
The invention belongs to lithium ion battery and manufacture field, be specifically related to the test macro that a kind of fender that lithium battery electric core is used is tested.
Background technology
Since Sony in 1992 successfully develops first commercial li-ion battery, lithium electricity is with its high energy ratio, long-life, high platform voltage, and characteristic widespread use aspect portable type electronic product such as environmental protection.In recent years, also raise year by year in its market share of electrokinetic cell field.Although lithium ion battery relatively other secondary cells has lot of advantages, itself there is the feature that overcharging resisting and not resistance to mistake are not put, need peripheral holding circuit to protect it, i.e. our usually said fender.The quality of fender is determining its protective capability for lithium battery, thereby it is detected and just seems particularly important.Traditional fender tester, function complexity, measuring accuracy is not high, and testing efficiency is low, is unfavorable for the easy of production practices simultaneously.
Summary of the invention
The present invention is devoted to design a professional fender test macro, realizes final purpose easy and simple to handle and that measuring accuracy is high, thereby better realizes the protective capability to lithium battery electric core, extends the serviceable life of battery core and increases safety in utilization.
For achieving the above object; the present invention is by the following technical solutions: a kind of lithium battery protection board test macro; comprise MOSFET, high-accuracy resistance, stabilized voltage supply and programmable precision power supply; described high-accuracy resistance simulation lithium battery electric core voltage; described high-accuracy simulation lithium battery electric core voltage is controlled by two-way MOSFET; described MOSFET is connected with programmable precision power supply, and by the control of programmable precision power supply, described programmable precision power supply is connected with stabilized voltage supply.
Further, described stabilized voltage supply is the power supply that adopts stepped voltage mechanism.
Further, at least one group of described high-accuracy resistance.
Lithium battery will carry out single battery protection patrols and examines, and therefore the battery of each joint all needs to test the reliability of fender, how each monomer battery core is disassembled to simulation, and controlling is respectively the core of this module; High-accuracy resistance is by the voltage of stabilized voltage supply is carried out to dividing potential drop, and then the voltage of control single battery, by the voltage of efficient programmable power supply is carried out to dividing potential drop, and then simulates the variation of single battery core in whole Battery pack; In the present invention, in the dynamic switching of analog voltage, use high life mosfet, the high-accuracy resistance of simulation single battery is controlled by two-way MOSFET, when commutation circuit, corresponding MOSFET conducting, can adjust the voltage of whole electric battery, meanwhile, switch on the contrary monomer voltage, can very accurately control often a stringly, it is carried out to isolated operation accurately; Programmable precision power supply in the present invention can support the use the news that work of going forward side by side with PC control software, utilize the high precision of the powerful programing function of upper computer software and this power supply, can test fender with the stepping of 1mV, really accomplish in real time with stable; Stabilized voltage supply in the present invention adopts stepped voltage mechanism, is mainly the lithium battery group of the different string of simulation numbers, scope be 1V to 90V, for unconventional fender on market, can electric pressure be set by host computer, realize the seamless link of test specification; The present invention can adapt to better production actual conditions and use, and function is clear, be convenient to employee simplifies operation, and can fast carry out rapidly professional fender test.More strengthen the safety and reliability of electric battery.
Brief description of the drawings
For the present invention will be further described, enumerate schematic process chart and embodiment below.
Fig. 1 structural representation of the present invention.
Embodiment
As shown in Figure 1, a kind of lithium battery protection board test macro, comprise MOSFET, high-accuracy resistance, stabilized voltage supply and programmable precision power supply, described high-accuracy resistance simulation lithium battery electric core voltage, described high-accuracy simulation lithium battery electric core voltage is controlled by two-way MOSFET, described MOSFET is connected with programmable precision power supply, and by the control of programmable precision power supply, described programmable precision power supply is connected with stabilized voltage supply, further, described stabilized voltage supply is the power supply that adopts stepped voltage mechanism, further, at least one group of described high-accuracy resistance, in the present invention, high-accuracy resistance is by carrying out dividing potential drop to the voltage of stabilized voltage supply, and then the voltage of control single battery, by the voltage of efficient programmable power supply is carried out to dividing potential drop, and then the variation of simulating single battery core in whole Battery pack, in the present invention, in the dynamic switching of analog voltage, use high life mosfet, the high-accuracy resistance of simulation single battery is controlled by two-way MOSFET, when commutation circuit, corresponding MOSFET conducting, can adjust the voltage of whole electric battery, meanwhile, switch on the contrary monomer voltage, can very accurately control often a stringly, it is carried out to isolated operation accurately, programmable precision power supply in the present invention can support the use the news that work of going forward side by side with PC control software, utilize the high precision of the powerful programing function of upper computer software and this power supply, can test fender with the stepping of 1mV, really accomplish in real time with stable, stabilized voltage supply in the present invention adopts stepped voltage mechanism, is mainly the lithium battery group of the different string of simulation numbers, scope be 1V to 90V, for unconventional fender on market, can electric pressure be set by host computer, realize the seamless link of test specification.
As shown in Figure 1; workflow of the present invention is such; in actual use; the present invention coordinates upper computer software to use; first by fender access system of the present invention to be tested, then select the voltage range at the fender place of test by upper computer software, after choosing; upper computer software is selected suitable voltage by stabilized voltage supply, automatically enters quiescent dissipation and internal resistance test.
After being completed, upper computer software is selected the charge port of fender, start first segment to be isolated by the battery core of resistance simulation, and control programmable power supply resistance is pressurizeed, as ferric phosphate lithium cell group, started by 3.4V, with the stepping of 1mV, in the time that voltage is elevated to certain value, detection system has electric current to produce in loop, voltage grows steadily to electric current and no longer changes, and this lowest high-current value and corresponding voltage point are euqalizing current and balanced cut-in voltage; Till voltage continues to be elevated to the voltage that detection system can't detect fender two ends, (now fender is in guard mode) this voltage is over-charge protective voltage, reduce magnitude of voltage simultaneously, until detection system two ends are from voltage newly being detected, this voltage is and overcharges recovery voltage; Then upper computer software manipulates MOSFET, high-accuracy resistance, programmable precision power supply by continuation, automatically proceeds to the test of next economize on electricity core, circulates until charging protection function is all completed.
Obviously, above-mentioned embodiment is only preferred embodiments of the present invention, and any simple modifications on this basis, all belongs to protection scope of the present invention.
Claims (2)
1. a lithium battery protection board test macro; comprise MOSFET, high-accuracy resistance, stabilized voltage supply and programmable precision power supply; it is characterized in that described high-accuracy resistance simulation lithium battery electric core voltage; described high-accuracy simulation lithium battery electric core voltage is controlled by two-way MOSFET; described MOSFET is connected with programmable precision power supply; and by the control of programmable precision power supply, described programmable precision power supply is connected with stabilized voltage supply.
2. a kind of lithium battery protection board test macro according to claim 1, is characterized in that described stabilized voltage supply is the power supply that adopts stepped voltage mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410394296.XA CN104166057A (en) | 2014-08-12 | 2014-08-12 | Lithium battery guard plate testing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410394296.XA CN104166057A (en) | 2014-08-12 | 2014-08-12 | Lithium battery guard plate testing system |
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| CN104166057A true CN104166057A (en) | 2014-11-26 |
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| CN201410394296.XA Pending CN104166057A (en) | 2014-08-12 | 2014-08-12 | Lithium battery guard plate testing system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931839A (en) * | 2015-06-30 | 2015-09-23 | 河北工业大学 | Battery protection board detection apparatus |
| WO2016086891A1 (en) * | 2014-12-03 | 2016-06-09 | 杭州协能科技股份有限公司 | Automatic detection system for battery balancing module group |
| EP3246719A1 (en) * | 2016-05-18 | 2017-11-22 | NXP USA, Inc. | Battery monitoring device with battery emulator |
| CN109698528A (en) * | 2017-10-23 | 2019-04-30 | 微宏动力***（湖州）有限公司 | Circuit of battery pack balancing detection system and method |
| WO2020062237A1 (en) * | 2018-09-30 | 2020-04-02 | Oppo广东移动通信有限公司 | Test system and method for charging apparatus |
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| CN203025319U (en) * | 2013-01-11 | 2013-06-26 | 山东润峰集团新能源科技有限公司 | Novel semi-automatic lithium battery protection plate function analyzer |
| CN103293462A (en) * | 2013-01-11 | 2013-09-11 | 山东润峰集团新能源科技有限公司 | Novel semi-automatic lithium battery protection panel function analyzer |
| CN203299293U (en) * | 2013-05-23 | 2013-11-20 | 东莞市百维科技有限公司 | Testing system for battery protective plates |
| CN103529319A (en) * | 2013-09-24 | 2014-01-22 | 福州开发区星云电子自动化有限公司 | Lithium battery protection plate testing system |
| CN204203373U (en) * | 2014-08-12 | 2015-03-11 | 山东兴宇新能源科技有限公司 | A kind of lithium battery protection board test macro |
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2014
- 2014-08-12 CN CN201410394296.XA patent/CN104166057A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203025319U (en) * | 2013-01-11 | 2013-06-26 | 山东润峰集团新能源科技有限公司 | Novel semi-automatic lithium battery protection plate function analyzer |
| CN103293462A (en) * | 2013-01-11 | 2013-09-11 | 山东润峰集团新能源科技有限公司 | Novel semi-automatic lithium battery protection panel function analyzer |
| CN203299293U (en) * | 2013-05-23 | 2013-11-20 | 东莞市百维科技有限公司 | Testing system for battery protective plates |
| CN103529319A (en) * | 2013-09-24 | 2014-01-22 | 福州开发区星云电子自动化有限公司 | Lithium battery protection plate testing system |
| CN204203373U (en) * | 2014-08-12 | 2015-03-11 | 山东兴宇新能源科技有限公司 | A kind of lithium battery protection board test macro |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086891A1 (en) * | 2014-12-03 | 2016-06-09 | 杭州协能科技股份有限公司 | Automatic detection system for battery balancing module group |
| CN104931839A (en) * | 2015-06-30 | 2015-09-23 | 河北工业大学 | Battery protection board detection apparatus |
| CN104931839B (en) * | 2015-06-30 | 2018-05-29 | 河北工业大学 | A kind of battery protection plate detector |
| EP3246719A1 (en) * | 2016-05-18 | 2017-11-22 | NXP USA, Inc. | Battery monitoring device with battery emulator |
| US10106049B2 (en) | 2016-05-18 | 2018-10-23 | Nxp Usa, Inc. | Battery monitoring device |
| CN109698528A (en) * | 2017-10-23 | 2019-04-30 | 微宏动力***（湖州）有限公司 | Circuit of battery pack balancing detection system and method |
| CN109698528B (en) * | 2017-10-23 | 2022-12-13 | 微宏动力***（湖州）有限公司 | Battery pack equalization circuit detection system and method |
| WO2020062237A1 (en) * | 2018-09-30 | 2020-04-02 | Oppo广东移动通信有限公司 | Test system and method for charging apparatus |
| US11368032B2 (en) | 2018-09-30 | 2022-06-21 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Test system and test method for charging device |
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Application publication date: 20141126 |
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