CN204203373U - A kind of lithium battery protection board test macro - Google Patents
A kind of lithium battery protection board test macro Download PDFInfo
- Publication number
- CN204203373U CN204203373U CN201420453006.XU CN201420453006U CN204203373U CN 204203373 U CN204203373 U CN 204203373U CN 201420453006 U CN201420453006 U CN 201420453006U CN 204203373 U CN204203373 U CN 204203373U
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- lithium battery
- voltage
- power supply
- mosfet
- programmable precision
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
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 programmable precision Energy control, described programmable precision power supply is connected with stabilized voltage supply, the utility model can adapt to production actual conditions better and use, clear function, be convenient to employee and simplify operation, and fast can carry out professional fender test rapidly, more strengthen the safety and reliability of electric battery.
Description
Technical field
The utility model belongs to lithium ion battery and manufactures field, is specifically related to the test macro that a kind of fender used lithium battery electric core 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 in 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 not overcharging resisting and not resistance to mistake are put, need peripheral protection circuit to protect it, be i.e. our usually said fender.The quality of fender decides its protective capability for lithium battery, thus detects it and just seems particularly important.Traditional fender tester, function is complicated, and measuring accuracy is not high, and testing efficiency is low, is unfavorable for the easy of production practices simultaneously.
Utility model content
The utility model is devoted to design a professional fender test macro, realizes easy and simple to handle and that measuring accuracy is high final purpose, thus 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 utility model 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 programmable precision Energy control, described programmable precision power supply is connected with stabilized voltage supply.
Further, described stabilized voltage supply is the power supply adopting stepped voltage mechanism.
Further, described high-accuracy resistance at least one group.
Lithium battery will carry out single battery protection and patrol and examine, and therefore the battery of each joint all needs the reliability of testing fender, how each monomer battery core to be carried out disassembling simulation, and control is the core of this module respectively; High-accuracy resistance by carrying out dividing potential drop to the voltage of stabilized voltage supply, and then controls the voltage of single battery, by carrying out dividing potential drop to the voltage of efficient programmable power supply, and then simulates the change of single battery core in whole Battery pack; In the utility model, in the switching at runtime of analog voltage, use high life mosfet, the high-accuracy resistance of simulation single battery controls, during commutation circuit by two-way MOSFET, corresponding MOSFET conducting, the voltage of whole electric battery can be adjusted, meanwhile, namely switch to monomer voltage on the contrary, very accurately can control often a string, isolated operation is accurately carried out to it; Programmable precision power supply in the utility model can carry out that supporting the use goes forward side by side and work interrogating with PC control software, the high precision of the programing function utilizing upper computer software powerful and this power supply, can test fender with the stepping of 1mV, really accomplish in real time with stable; Stabilized voltage supply in the utility model adopts stepped voltage mechanism, mainly the lithium battery group of simulation different string number, and scope is 1V to 90V, for fender unconventional on market, arranges electric pressure by host computer, realizes the seamless link of test specification; The utility model can adapt to production actual conditions better and use, and clear function, is convenient to employee and simplifies operation, and fast can carry out professional fender test rapidly.More strengthen the safety and reliability of electric battery.
Accompanying drawing explanation
For being described further the utility model, enumerate schematic process chart and embodiment below.
Fig. 1 structural representation of the present utility model.
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 programmable precision Energy control, described programmable precision power supply is connected with stabilized voltage supply, further, described stabilized voltage supply is the power supply adopting stepped voltage mechanism, further, described high-accuracy resistance at least one group, in the utility model, high-accuracy resistance is by carrying out dividing potential drop to the voltage of stabilized voltage supply, and then control the voltage of single battery, by carrying out dividing potential drop to the voltage of efficient programmable power supply, and then simulate the change of single battery core in whole Battery pack, in the utility model, in the switching at runtime of analog voltage, use high life mosfet, the high-accuracy resistance of simulation single battery controls, during commutation circuit by two-way MOSFET, corresponding MOSFET conducting, the voltage of whole electric battery can be adjusted, meanwhile, namely switch to monomer voltage on the contrary, very accurately can control often a string, isolated operation is accurately carried out to it, programmable precision power supply in the utility model can carry out that supporting the use goes forward side by side and work interrogating with PC control software, the high precision of the programing function utilizing upper computer software powerful and this power supply, can test fender with the stepping of 1mV, really accomplish in real time with stable, stabilized voltage supply in the utility model adopts stepped voltage mechanism, mainly the lithium battery group of simulation different string number, and scope is 1V to 90V, for fender unconventional on market, arranges electric pressure by host computer, realizes the seamless link of test specification.
As shown in Figure 1; workflow of the present utility model is such; in actual use; the utility model coordinates upper computer software to use; first fender to be tested is accessed in the utility model system, then selected the voltage range at the fender place of test by upper computer software, after choosing; upper computer software selects suitable voltage by stabilized voltage supply, automatically enters quiescent dissipation and inner walkway.
After being completed, upper computer software selects the charge port of fender, start to isolate the battery core of first segment by resistance simulation, and control programmable power supply and resistance is pressurizeed, as ferric phosphate lithium cell group, by 3.4V, with the stepping of 1mV, when voltage is elevated to certain value, in detection system to loop, electric current is had to produce, voltage grows steadily to electric current and no longer changes, and this maximum current value and corresponding voltage point are euqalizing current and balanced cut-in voltage; Voltage continues to be elevated to (now fender is in guard mode) this voltage till detection system can't detect the voltage at fender two ends and is over-charge protective voltage, reduce magnitude of voltage simultaneously, until detection system two ends are from newly voltage being detected, this voltage is and overcharges recovery voltage; Then upper computer software is by continuing manipulation MOSFET, high-accuracy resistance, programmable precision power supply, and automatically proceed to the test of next economize on electricity core, circulation is until charging protection function is all completed.
Obviously, above-mentioned embodiment is only better embodiment of the present utility model, and any simple modifications on this basis, all belongs to protection domain of the present utility model.
Claims (1)
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 programmable precision Energy control; described programmable precision power supply is connected with stabilized voltage supply, and described stabilized voltage supply is the power supply adopting stepped voltage mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420453006.XU CN204203373U (en) | 2014-08-12 | 2014-08-12 | A kind of lithium battery protection board test macro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420453006.XU CN204203373U (en) | 2014-08-12 | 2014-08-12 | A kind of lithium battery protection board test macro |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204203373U true CN204203373U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420453006.XU Expired - Fee Related CN204203373U (en) | 2014-08-12 | 2014-08-12 | A kind of lithium battery protection board test macro |
Country Status (1)
| Country | Link |
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| CN (1) | CN204203373U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166057A (en) * | 2014-08-12 | 2014-11-26 | 山东兴宇新能源科技有限公司 | Lithium battery guard plate testing system |
| CN105044645A (en) * | 2015-08-14 | 2015-11-11 | 弗尔赛（上海）能源科技有限公司 | Detection system of single cell voltage monitor |
-
2014
- 2014-08-12 CN CN201420453006.XU patent/CN204203373U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166057A (en) * | 2014-08-12 | 2014-11-26 | 山东兴宇新能源科技有限公司 | Lithium battery guard plate testing system |
| CN105044645A (en) * | 2015-08-14 | 2015-11-11 | 弗尔赛（上海）能源科技有限公司 | Detection system of single cell voltage monitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150311 Termination date: 20150812 |
|
| EXPY | Termination of patent right or utility model |