CN203519738U - Lithium battery guard plate test system - Google Patents
Lithium battery guard plate test system Download PDFInfo
- Publication number
- CN203519738U CN203519738U CN201320590430.4U CN201320590430U CN203519738U CN 203519738 U CN203519738 U CN 203519738U CN 201320590430 U CN201320590430 U CN 201320590430U CN 203519738 U CN203519738 U CN 203519738U
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- circuit
- lithium battery
- protection board
- battery protection
- master controller
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Abstract
The utility model provides a lithium battery guard plate test system. The lithium battery guard plate test system comprises a main controller, a switching circuit, a voltage measuring circuit, an analog battery circuit, a voltage comparison circuit and an adjustable direct current source. The main controller is connected with the switching circuit, the voltage measuring circuit, the voltage comparison circuit, the adjustable direct current source and the analog battery circuit. The switching circuit is connected with the adjustable direct current source. By adopting the lithium battery guard plate test system, the test of a lithium battery guard plate is carried out in all aspects, and the problem that an existing lithium battery guard plate test system fails to carry out the test in all aspects is solved.
Description
Technical field
The utility model relates to lithium battery protection board test macro.
Background technology
Along with the development of smart mobile phone, its battery is also proposed to requirements at the higher level, as capacity will increase, defencive function is increased to two sections, time of short-circuit protection by one section and will will reduces by loop resistance faster, fender, quiescent dissipation will reduce etc.And the protection of battery is all realized by fender, the whether qualified safety that directly has influence on battery of the performance of cell panel, the performance test for fender just seems quite important.Defencive function is that the common inner structure of lithium battery protection board of two sections is two circuit that protection chip forms especially; different from existing single-chip fender; its each independent chip circuit can be realized the protection to lithium battery; this li-ion cell protection intralamellar part has a common port; be the intermediate point of a section and two segment protects, in inner structure, can be simply interpreted as that the output plus terminal of a protection chip circuit and the output negative terminal of another one protection chip circuit are connected and the common port that forms.Lithium battery protection board outside there are four terminals, be respectively battery anode, battery negative terminal, output plus terminal, output negative terminal, battery anode and battery negative terminal are for positive pole and the negative pole of lithium battery, output plus terminal and output negative terminal are for output voltage.We need to develop the equipment making new advances and realize the detection to fender function.
Summary of the invention
The technical problems to be solved in the utility model, is to provide lithium battery protection board test macro.
The utility model is achieved in that
Lithium battery protection board test macro, comprises master controller, commutation circuit, tension measuring circuit, simulated battery circuit, voltage comparator circuit and adjustable DC current source;
Described master controller is connected with commutation circuit, tension measuring circuit, voltage comparator circuit, adjustable DC current source, simulated battery circuit; Described commutation circuit is connected with adjustable DC current source;
Tension measuring circuit is connected with battery anode, the output plus terminal of lithium battery protection board;
The battery anode of simulated battery circuit and lithium battery protection board, battery negative terminal;
Commutation circuit is connected with battery anode, battery negative terminal, output plus terminal, output negative terminal, the common port of lithium battery protection board;
Voltage comparator circuit is connected with battery negative terminal, output negative terminal, the common port of lithium battery protection board.
Further, described commutation circuit comprises a segment protect test commutation circuit, two segment protect test commutation circuit and testing impedance commutation circuits;
A described segment protect test commutation circuit is connected with lithium battery protection board common port with adjustable DC current source, master controller, lithium battery protection board output negative terminal;
Two described segment protect test commutation circuits are connected with adjustable DC current source, master controller, lithium battery protection board battery negative terminal and lithium battery protection board common port;
Described testing impedance commutation circuit is connected with lithium battery protection board output plus terminal with adjustable DC current source, master controller, lithium battery protection board battery anode.
Further, also comprise a buffer circuit, when master controller is connected with tension measuring circuit, by described buffer circuit, be connected with tension measuring circuit again.
Further, described commutation circuit is relay switch circuit.
Further, described master controller is single-chip microcomputer.
The utlity model has following advantage: can realize the comprehensively detection demand such as a segment protect to fender, two segment protects, impedance.
Accompanying drawing explanation
The utility model is further described with reference to the accompanying drawings in conjunction with the embodiments.
Fig. 1 is system architecture schematic diagram of the present utility model.
Fig. 2 is the structural representation of commutation circuit of the present utility model.
Embodiment
As depicted in figs. 1 and 2, below will be elaborated to embodiment of the present utility model.
Lithium battery protection board test macro 1, comprises master controller 10, commutation circuit 11, tension measuring circuit 12, simulated battery circuit 13, voltage comparator circuit 14 and adjustable DC current source 15;
Master controller 10 is connected with commutation circuit 11, tension measuring circuit 12, voltage comparator circuit 14, adjustable DC current source 15, simulated battery circuit 13; Described commutation circuit 11 is connected with adjustable DC current source 15.In addition, outside this test macro 1, also there is lithium battery protection board to be tested 2.
Battery anode, the battery negative terminal of simulated battery circuit 13 and lithium battery protection board 2;
This test macro 1 is when testing lithium battery protection board 2; the guard time of measuring lithium battery protection board 2 of take is example: master controller 10 control simulation battery circuits 13 load an analog voltage on lithium battery protection board 2, and the holding circuit on lithium battery protection board 2 can be worked together.Then master controller 10 is controlled commutation circuit 11 to adjustable DC current source 15 is switched on the test loop of lithium battery protection board to be measured 2.Master controller 10 is controlled predefined electric current that fender protection is enabled of adjustable DC current source 15 output, as 50A.Master controller 10 starts timing simultaneously; when protection; master controller 10 can detect the saltus step of level on voltage comparator circuit 14; master controller 10 is measured control adjustable DC current source 15 and is outputed to 14 these a period of times of level saltus step of voltage comparator circuit, is the guard time of lithium battery protection board 2.
For fear of the impact of voltage on master controller 10 on tension measuring circuit 12, preferably, a buffer circuit 16 can be set between tension measuring circuit 12 and master controller 10, when master controller 10 is connected with tension measuring circuit 12, by buffer circuit 16, be connected with tension measuring circuit 12 again.
Preferably, the commutation circuit 11 of this test macro 1 can be relay switch circuit.Use relay to switch to there is isolation voltage high, the simple advantage of switching controls.Master controller 10 is single-chip microcomputer, and it is strong that single-chip microcomputer has the function of control, the simple advantage of programming.
In order to test more all sidedly the over-all properties of lithium battery protection board 2, in some preferred embodiment, commutation circuit 11 comprises segment protect test commutation circuit 110, two segment protect test commutation circuit 111 and testing impedance commutation circuits 112; One segment protect test commutation circuit 110 is connected with lithium battery protection board 2 common ports with adjustable DC current source 15, master controller 10, lithium battery protection board 2 output negative terminals; Two segment protect test commutation circuits 111 are connected with adjustable DC current source 15, master controller 10, lithium battery protection board 2 battery negative terminals and lithium battery protection board 2 common ports; Testing impedance commutation circuit 112 is connected with lithium battery protection board 2 output plus terminals with adjustable DC current source 15, master controller 10, lithium battery protection board 2 battery anodes.
When testing a segment protect of lithium battery protection board 2, master controller 10 is set to simulated battery circuit 13 normal working voltage of lithium battery protection board 2.Master controller 10 enables a segment protect test commutation circuit 110 of commutation circuit 11, adjustable DC current source 15 is carried on the common port and output negative terminal of lithium battery protection board 2, and measuring current can be flowed into from output negative terminal.Then master controller 10 loads adjustable DC current source 15 according to the overcurrent of lithium battery protection board 2 and short circuit value.Master controller 10 detects the time of lithium battery protection board 2 one segment protects by voltage comparator circuit 14.During from loading, start timing, during to voltage comparator circuit 14 level saltus step, measure during this period of time, be the segment protect time.
When testing a segment protect of lithium battery protection board 2, master controller 10 is set to simulated battery circuit 13 normal working voltage of lithium battery protection board 2.Master controller 10 enables two segment protect test commutation circuits 111 of commutation circuit 11, adjustable DC current source 15 is carried on the common port and battery negative terminal of lithium battery protection board 2, and measuring current can be flowed into from common port.Then master controller 10 loads adjustable DC current source 15 according to the overcurrent of lithium battery protection board 2 and short circuit value.Master controller 10 detects the time of lithium battery protection board 2 two segment protects by voltage comparator circuit 14.During from loading, start timing, during to voltage comparator circuit 14 level saltus step, measure during this period of time, be for two segment protect times.
When testing the DC impedance of lithium battery protection board 2, master controller 10 is set to simulated battery circuit 13 normal working voltage of lithium battery protection board 2.Master controller 10 enables the testing impedance commutation circuit 112 of commutation circuit 11, adjustable DC current source 15 is carried on the output plus terminal and battery anode of lithium battery protection board 2.Master controller 10 uses adjustable DC current source 15 to load two kinds of current values, by tension measuring circuit 12, the voltage of battery anode and output plus terminal is measured.Then master controller 10, by the voltage difference recording divided by electric current difference, is calculated to obtain the DC impedance of lithium battery protection board 2.
In sum, lithium battery protection board test macro of the present utility model can complete comprehensively to be tested lithium battery protection board, has guaranteed the performance of lithium battery protection board, thereby has guaranteed the safety of lithium battery.
Although more than described embodiment of the present utility model; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than for the restriction to scope of the present utility model; those of ordinary skill in the art are in equivalent modification and the variation done according to spirit of the present utility model, all should be encompassed in the scope that claim of the present utility model protects.
Claims (5)
1. lithium battery protection board test macro, is characterized in that: comprise master controller, commutation circuit, tension measuring circuit, simulated battery circuit, voltage comparator circuit and adjustable DC current source;
Described master controller is connected with commutation circuit, tension measuring circuit, voltage comparator circuit, adjustable DC current source, simulated battery circuit; Described commutation circuit is connected with adjustable DC current source;
Tension measuring circuit is connected with battery anode, the output plus terminal of lithium battery protection board;
The battery anode of simulated battery circuit and lithium battery protection board, battery negative terminal;
Commutation circuit is connected with battery anode, battery negative terminal, output plus terminal, output negative terminal, the common port of lithium battery protection board;
Voltage comparator circuit is connected with battery negative terminal, output negative terminal, the common port of lithium battery protection board.
2. lithium battery protection board test macro according to claim 1, is characterized in that: described commutation circuit comprises a segment protect test commutation circuit, two segment protect test commutation circuit and testing impedance commutation circuits;
A described segment protect test commutation circuit is connected with lithium battery protection board common port with adjustable DC current source, master controller, lithium battery protection board output negative terminal;
Two described segment protect test commutation circuits are connected with adjustable DC current source, master controller, lithium battery protection board battery negative terminal and lithium battery protection board common port;
Described testing impedance commutation circuit is connected with lithium battery protection board output plus terminal with adjustable DC current source, master controller, lithium battery protection board battery anode.
3. lithium battery protection board test macro according to claim 1, is characterized in that: also comprise a buffer circuit, when master controller is connected with tension measuring circuit, by described buffer circuit, be connected with tension measuring circuit again.
4. lithium battery protection board test macro according to claim 1, is characterized in that: described commutation circuit is relay switch circuit.
5. lithium battery protection board test macro according to claim 1, is characterized in that: described master controller is single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590430.4U CN203519738U (en) | 2013-09-24 | 2013-09-24 | Lithium battery guard plate test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590430.4U CN203519738U (en) | 2013-09-24 | 2013-09-24 | Lithium battery guard plate test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203519738U true CN203519738U (en) | 2014-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320590430.4U Expired - Fee Related CN203519738U (en) | 2013-09-24 | 2013-09-24 | Lithium battery guard plate test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203519738U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112285463A (en) * | 2020-10-13 | 2021-01-29 | 安徽锐能科技有限公司 | Testing device and method for lithium battery protection board and storage medium |
-
2013
- 2013-09-24 CN CN201320590430.4U patent/CN203519738U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103529319B (en) * | 2013-09-24 | 2016-09-14 | 福建星云电子股份有限公司 | Li-ion cell protection board test system |
| CN112285463A (en) * | 2020-10-13 | 2021-01-29 | 安徽锐能科技有限公司 | Testing device and method for lithium battery protection board and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: FUJIAN NEBULA ELECTRONIC CO., LTD. Free format text: FORMER NAME: FUZHOU DEVELOPMENT ZONE XINGYUN ELECTRONIC AUTOMATION CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 350000 Productivity Promotion Center, No. 8, star hair Road, Mawei District, Fujian, Fuzhou 3, 304 Patentee after: FUJIAN NEBULA ELECTRONICS CO., LTD. Address before: 350000 Productivity Promotion Center, 8 star road, Mawei District, Fujian, Fuzhou 3, China, 304 Patentee before: Fuzhou Development Zone Xingyun Electronic Automation Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20160924 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |