CN205941831U - Lithium cell electrode short circuit test device - Google Patents
Lithium cell electrode short circuit test device Download PDFInfo
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- CN205941831U CN205941831U CN201620631255.2U CN201620631255U CN205941831U CN 205941831 U CN205941831 U CN 205941831U CN 201620631255 U CN201620631255 U CN 201620631255U CN 205941831 U CN205941831 U CN 205941831U
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Abstract
The utility model discloses a lithium cell electrode short circuit test device, testing arrangement includes start triggering circuit, short circuit starting circuit, short circuit current, short -circuit protection detection and leaks current detection circuit, hourglass current test starting circuit, state latch circuit, qualified indicating circuit, manual reset circuit, short circuit circuit connection is surveyed the battery, start triggering circuit connects short circuit starting circuit and gives short circuit starting circuit triggering signal, short -circuit protection detects and leaks the current detection circuit sense terminal and connects the short circuit current, and hourglass current test starting circuit, state latch circuit, qualified indicating circuit are connected respectively to its control end, state latch circuit connects short circuit starting circuit, manual reset circuit respectively in both ends in addition, short circuit starting circuit is connected to manual reset circuit output. The utility model discloses insert one behind the short -circuit test and leak current detection resistance, compare the size of leakage current through the comparator to the within range whether the judgement leakage current was being stipulated.
Description
Technical field
This utility model is related to a kind of test device, particularly relates to a kind of electrode of lithium cell short-circuit test device.
Background technology
Current lithium battery tester have a defect it is impossible to detect battery short circuit protection after leakage current be less than 2mA with
The bad battery of lower situation.When after the battery short circuit protection adding protection board, output current is less than below 2mA, this cell tester
NG battery cannot be recognized as.
Utility model content
For deficiency of the prior art, the technical problems to be solved in the utility model there are provided a kind of lithium battery
Pole short-circuit test device, this device can detect the bad battery less than 2mA for the output current after short-circuit protection.
For solving above-mentioned technical problem, this utility model is realized by below scheme：A kind of electrode of lithium cell short circuit is surveyed
Trial assembly is put, and described test device includes 8 modular circuits, and this 8 modular circuits include：Start triggering circuit, short circuit start electricity
Road, short circuit current, short-circuit protection detection and leakage current detection circuit, leakage current test starting circuit, state latching circuit, qualified
Indicating circuit, manual reset circuit；
Described short circuit current connects tested battery；
Described start triggering circuit connects shorting activation circuit and to shorting activation circuit trigger；
Described short-circuit protection detection and leakage current detection circuit test side connect short circuit current, and its control end connects leakage respectively
Testing current start-up circuit, state latching circuit, qualified indicating circuit；
The another two ends of described state latching circuit connect shorting activation circuit, manual reset circuit, described hand-reset respectively
Circuit output end connects shorting activation circuit.
Further, be provided with described start triggering circuit model CD4023BCN buffering triple 3 input with non-
Door, triple 3 input nand gate pins 9 of this CD4023BCN buffering connect shorting activation circuit；
It is provided with LM555J bipolar time-base circuits chip, base electricity when this LM555J is ambipolar in described shorting activation circuit
Road chip output OUT pin connects SI4435DY enhancement-mode field-effect transistors Q2 on short circuit current；
SI4435DY enhancement-mode field-effect transistors Q2 of described short circuit current are just being electrically connected with 1N4148 diode D4
Extremely, the two ends of 1N4148 diode D4 are connected on tested battery；
It is provided with LM358AP dual operational amplifier U2A, this pair of fortune in described short-circuit protection detection and leakage current detection circuit
Calculate amplifier U2A outfan connection status latch cicuit；
It is provided with CD4013BMN trigger U3A, this CD4013BMN trigger U3A in described leakage current test starting circuit
Pin 3 connect CD4011BCN logic chip 42 input nand gate, this CD4011BCN logic chip 42 input nand gate
The other end connects the LM358AP dual operational amplifier U2A outfan in short-circuit protection detection and leakage current detection circuit；
Described manual reset electro route two CD4011BCN logic chip 42 input nand gates composition in parallel, its outfan
Connection status latch cicuit.
With respect to prior art, the beneficial effects of the utility model are：Leakage current test starting circuit 5 and short-circuit protection inspection
Survey and leakage current detection circuit 4 cooperation increased output current test function after battery protection, so that battery protection is also had after closing
The NG product of small current output are detected.Access a leakage current test resistance after short-circuit test, leakage current is compared by comparator
Size, to judge leakage current whether within the limits prescribed.
Brief description
Fig. 1 is this utility model electrode of lithium cell short-circuit test device circuit diagram.
Fig. 2 is this utility model electrode of lithium cell short-circuit test device electrical principle block diagram.
Fig. 3 is start triggering circuit 1 enlarged drawing in Fig. 2.
Fig. 4 is shorting activation circuit 2 enlarged drawing in Fig. 2.
Fig. 5 is short circuit current 3 enlarged drawing in Fig. 2.
Fig. 6 is short-circuit protection detection and leakage current detection circuit 4 enlarged drawing in Fig. 2.
Fig. 7 is leakage current test starting circuit 5 enlarged drawing in Fig. 2.
Fig. 8 is the enlarged drawing of the state latching circuit 6 in Fig. 2.
Fig. 9 is manual reset circuit 8 enlarged drawing in Fig. 2.
Labelling in accompanying drawing：Start triggering circuit 1, shorting activation circuit 2, short circuit current 3, short-circuit protection detection and leakage current
Testing circuit 4, leakage current test starting circuit 5, state latching circuit 6, qualified indicating circuit 7, manual reset circuit 8.
Specific embodiment
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model
Can be easier to be readily appreciated by one skilled in the art with feature, thus make apparent clear and definite to protection domain of the present utility model
Define.
Refer to accompanying drawing 1, a kind of electrode of lithium cell short-circuit test device of the present utility model, described test device includes 8
Individual modular circuit, this 8 modular circuits include：Start triggering circuit 1, shorting activation circuit 2, short circuit current 3, short-circuit protection inspection
Survey and leakage current detection circuit 4, leakage current test starting circuit 5, state latching circuit 6, qualified indicating circuit 7, hand-reset
Circuit 8；Described short circuit current 3 connects tested battery；Described start triggering circuit 1 connects shorting activation circuit 2 and opens to short circuit
Galvanic electricity road 2 trigger；Described short-circuit protection detection and leakage current detection circuit 4 test side connect short circuit current 3, its control end
Connect leakage current test starting circuit 5, state latching circuit 6, qualified indicating circuit 7 respectively；Described state latching circuit 6 another two
End connects shorting activation circuit 2, manual reset circuit 8 respectively, and described manual reset circuit 8 outfan connects shorting activation circuit
2.
As shown in Fig. 2 ~ 9, be provided with described start triggering circuit 1 model CD4023BCN buffering triple 3 input with
Not gate, triple 3 input nand gate pins 9 of this CD4023BCN buffering connect shorting activation circuit 2；
It is provided with LM555J bipolar time-base circuits chip, base when this LM555J is ambipolar in described shorting activation circuit 2
Circuit chip outfan OUT pin connects SI4435DY enhancement-mode field-effect transistors Q2 on short circuit current 3；
SI4435DY enhancement-mode field-effect transistors Q2 of described short circuit current 3 are just being electrically connected with 1N4148 diode D4
Extremely, the two ends of 1N4148 diode D4 are connected on tested battery；
It is provided with LM358AP dual operational amplifier U2A, this pair in described short-circuit protection detection and leakage current detection circuit 4
Operational amplifier U2A outfan connection status latch cicuit 6；
It is provided with CD4013BMN trigger U3A, this CD4013BMN trigger in described leakage current test starting circuit 5
The pin 3 of U3A connects CD4011BCN logic chip 42 input nand gate, this CD4011BCN logic chip 42 input nand gate
The other end connect short-circuit protection detection and leakage current detection circuit 4 in LM358AP dual operational amplifier U2A outfan；
Described manual reset circuit 8 is made up of two CD4011BCN logic chips 42 input nand gate parallel connection, its output
End connection status latch cicuit 6.
This utility model electrode of lithium cell short-circuit test device accesses a leakage current test resistance after short-circuit test, leads to
Cross the size that comparator compares leakage current, to judge leakage current whether within the limits prescribed.Described short-circuit protection test device
Short circuit current 3 connect tested battery, start triggering circuit 1 gives short circuit after shorting activation circuit 2 trigger, time delay 0.6 second
Start-up circuit 2 makes short circuit current 3 start, and makes tested battery plus-negative plate short circuit, short-circuit maximum duration 1.1 seconds, short-circuit protection detects
And whether leakage current detection circuit 4 detection short-circuit protection is normal, normally then triggers leakage current test starting circuit 5, if not
Normal then after 0.15 second, triggering state latch cicuit 6 is another, state latching circuit 6 separately trigger shorting activation circuit 2 and disconnects short circuit to be surveyed
Examination, it is ensured that the safety of tested battery, if leakage current test starting circuit 5 is triggered, starts short-circuit protection detection and leaks electricity
The leakage current test of current detection circuit 4, normally then triggers qualified indicating circuit 7, and qualified indicating circuit 7 is right topmost in Fig. 2
Shown LED1 indicator light circuit, short-circuit protection detection and leakage current detection circuit 4 testing result, if abnormal, trigger
State latching circuit 6, when state latching circuit 6 is triggered, only manually reset circuit 8 hand-reset just could recover
Often test mode.
The foregoing is only preferred implementation of the present utility model, not thereby limit patent model of the present utility model
Enclose, equivalent structure or equivalent flow conversion that every utilization this utility model description and accompanying drawing content are made, or directly or
Connect the technical field being used in other correlations, all include in the same manner in scope of patent protection of the present utility model.
Claims (2)
1. a kind of electrode of lithium cell short-circuit test device it is characterised in that：Described test device includes 8 modular circuits, this 8
Modular circuit includes：Start triggering circuit（1）, shorting activation circuit（2）, short circuit current（3）, short-circuit protection detection and leakage current
Testing circuit（4）, leakage current test starting circuit（5）, state latching circuit（6）, qualified indicating circuit（7）, manual reset electro
Road（8）；
Described short circuit current（3）Connect tested battery；
Described start triggering circuit（1）Connect shorting activation circuit（2）And give shorting activation circuit（2）Trigger；
Described short-circuit protection detection and leakage current detection circuit（4）Test side connects short circuit current（3）, its control end connects respectively
Leakage current test starting circuit（5）, state latching circuit（6）, qualified indicating circuit（7）；
Described state latching circuit（6）Another two ends connect shorting activation circuit respectively（2）, manual reset circuit（8）, described manual
Reset circuit（8）Outfan connects shorting activation circuit（2）.
2. a kind of electrode of lithium cell short-circuit test device according to claim 1 it is characterised in that：
Described start triggering circuit（1）In be provided with model CD4023BCN buffering triple 3 input nand gates, should
Triple 3 input nand gate pins 9 of CD4023BCN buffering connect shorting activation circuit（2）；
Described shorting activation circuit（2）In be provided with LM555J bipolar time-base circuits chip, when this LM555J is ambipolar base electricity
Road chip output OUT pin connects short circuit current（3）On SI4435DY enhancement-mode field-effect transistors Q2；
Described short circuit current（3）SI4435DY enhancement-mode field-effect transistors Q2 be electrically connected with 1N4148 diode D4 positive pole
End, the two ends of 1N4148 diode D4 are connected on tested battery；
Described short-circuit protection detection and leakage current detection circuit（4）In be provided with LM358AP dual operational amplifier U2A, this pair fortune
Calculate amplifier U2A outfan connection status latch cicuit（6）；
Described leakage current test starting circuit（5）In be provided with CD4013BMN trigger U3A, this CD4013BMN trigger U3A
Pin 3 connect CD4011BCN logic chip 42 input nand gate, this CD4011BCN logic chip 42 input nand gate
The other end connects short-circuit protection detection and leakage current detection circuit（4）In LM358AP dual operational amplifier U2A outfan；
Described manual reset circuit（8）It is made up of two CD4011BCN logic chips 42 input nand gate parallel connection, its outfan
Connection status latch cicuit（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620631255.2U CN205941831U (en) | 2016-06-23 | 2016-06-23 | Lithium cell electrode short circuit test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620631255.2U CN205941831U (en) | 2016-06-23 | 2016-06-23 | Lithium cell electrode short circuit test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205941831U true CN205941831U (en) | 2017-02-08 |
Family
ID=57929584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620631255.2U Active CN205941831U (en) | 2016-06-23 | 2016-06-23 | Lithium cell electrode short circuit test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205941831U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106970292A (en) * | 2017-04-27 | 2017-07-21 | 苏州博众精工科技有限公司 | A kind of battery pole piece cuts short-circuit alarming circuit |
| CN108411342A (en) * | 2018-03-15 | 2018-08-17 | 北方工业大学 | Method and system for predicting electrode short circuit based on pseudo resistance |
| CN108445344A (en) * | 2018-03-15 | 2018-08-24 | 北方工业大学 | Method and system for predicting electrode short circuit based on current |
-
2016
- 2016-06-23 CN CN201620631255.2U patent/CN205941831U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106970292A (en) * | 2017-04-27 | 2017-07-21 | 苏州博众精工科技有限公司 | A kind of battery pole piece cuts short-circuit alarming circuit |
| CN106970292B (en) * | 2017-04-27 | 2019-07-26 | 博众精工科技股份有限公司 | A kind of battery pole piece cuts short-circuit alarming circuit |
| CN108411342A (en) * | 2018-03-15 | 2018-08-17 | 北方工业大学 | Method and system for predicting electrode short circuit based on pseudo resistance |
| CN108445344A (en) * | 2018-03-15 | 2018-08-24 | 北方工业大学 | Method and system for predicting electrode short circuit based on current |
| CN108445344B (en) * | 2018-03-15 | 2019-02-22 | 北方工业大学 | Method and system for predicting electrode short circuit based on current |
| CN108411342B (en) * | 2018-03-15 | 2019-06-07 | 北方工业大学 | Method and system for predicting electrode short circuit based on pseudo resistance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170727 Address after: 523000 Guangdong province Dongguan wangniudunzhen Huiyuan road 13, No. 15 South Korea Bridge Industrial Park District Four, building 2, 1 Patentee after: Guangdong Weiduli new energy Co. Ltd. Address before: 518126 Guangdong city of Shenzhen province Baoan District City Avenue Xixiang Airlines route Shu City Industrial Area D building 3 floor Patentee before: Shenzhen VDL Electronics Co., Ltd. |
|
| TR01 | Transfer of patent right |