CN205581207U - Novel explosion -proof combined cover cap power type internal resistance test appearance of cylinder lithium cell - Google Patents
Novel explosion -proof combined cover cap power type internal resistance test appearance of cylinder lithium cell Download PDFInfo
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- CN205581207U CN205581207U CN201620293351.0U CN201620293351U CN205581207U CN 205581207 U CN205581207 U CN 205581207U CN 201620293351 U CN201620293351 U CN 201620293351U CN 205581207 U CN205581207 U CN 205581207U
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- internal resistance
- explosion
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- type internal
- cover cap
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Abstract
The utility model discloses a novel explosion -proof combined cover cap power type internal resistance test appearance of cylinder lithium cell, aim at providing one kind and change system into the novel explosion -proof combined cover cap power type internal resistance test appearance of cylinder lithium cell of broken string measuring resistance for the infinity through the no current output conversion of will breaking, its technical scheme main points detect the wire of testing the internal resistance through circuit test circuit whether to be in the serviceable condition, and the data phase region branch that the data that detect out when breaking when the wire that detects the test internal resistance detected out when can be with the explosion -proof combined cover cap internal resistance manufacturing of novel cylinder lithium cell not up to standard comes, the erroneous judgement fine or not to the explosion -proof combined cover cap of novel cylinder lithium cell that causes because the detection line breaks with regard to having avoided like this. And this circuit structure is simple, convenient operation, low in manufacturing cost.
Description
Technical field
This utility model relates to technical field of lithium batteries, more specifically, it relates to a kind of novel cylindrical lithium battery anti-explosion power type internal resistance test device.
Background technology
Internal resistance test device, internal resistance test device is that lithium battery is tested by general employing four line methods of testing for measuring internal battery impedance and the instrument of battery acidifying breakage of thin film applied degree.
Although this internal resistance test device can be tested in internal resistance to lithium battery convenient and simplely, but when internal resistance test device wherein any wire breaks, then test resistance is negative value or close to null value, but still has resistance；If being dynamic column lithium battery combination cover cap during test, his internal resistance requires within 1 milliohm, if owing to combination cover cap occurs extremely to cause internal resistance superelevation in the mill, test now likely will be judged by accident, owing to fixture circuit is built-in, it is difficult to be found broken string, just loses test meaning.
Utility model content
The purpose of this utility model is to provide that a kind of to change system into broken string measurement resistance be infinitely-great novel cylindrical lithium battery anti-explosion power type internal resistance test device by the output of broken string no current being changed, and avoids in this way, owing to internal resistance test device breaks, Novel circular post lithium battery causes the phenomenon of erroneous judgement.
Above-mentioned technical purpose of the present utility model has the technical scheme that
A kind of novel cylindrical lithium battery anti-explosion power type internal resistance test device, includes the power supply circuits to test module for power supply, the inner walkway circuit of detection internal resistance and the line testing circuit of detection circuit on-off state including test clip and test module testing module.
It is arranged such, Novel circular post lithium battery explosion-proof combined block power type internal resistance test device can be made not only to have the function of test internal resistance, can also by line testing circuit detect test internal resistance wire whether be in serviceable condition, and when the wire of detection test internal resistance is broken string the data that detect can the most up to standard with novel cylindrical lithium battery anti-explosion internal resistance manufacture time the data that detect make a distinction mutually, thus avoid the erroneous judgement to novel cylindrical lithium battery anti-explosion quality caused due to detection circuit breaking.
Arrange further: line testing circuit is parallel with audion, and base stage and the colelctor electrode of audion are connected with output circuit respectively.
It is arranged such, by the Low level effective principle of test instrumentation, the output of broken string no current can be converted into low level control and provide judgement, being broken by testing circuit in conjunction with the characteristic of circuit tester, to change system into the internal resistance value measured be infinity to no current, make a distinction mutually owing to manufacturing result that is abnormal and that measure with novel cylindrical lithium battery anti-explosion, so simple in construction, easily distinguish, and low cost of manufacture.
Arrange further: audion is switch mosfet pipe.
Being arranged such, switch mosfet pipe can serve as variable resistance and also apply be applicable to amplify.Owing to the input impedance of switch mosfet pipe is the highest, therefore coupling electric capacity can be less with capacity, it is not necessary to uses electrolysis condenser.And the highest input impedance of switch mosfet pipe is especially suitable for making impedance transformation, the input stage being usually used in multistage amplifier makees impedance transformation.Switch mosfet pipe can be easily used as constant-current source and be also used as electrical switch.The source electrode of some switch mosfet pipe and drain electrode can exchange use, and grid voltage also can just can be born, and motility is the highest.Switch mosfet pipe can work under conditions of low-voltage at very small area analysis with very, and its manufacturing process can be integrated in a lot of field effect transistor on one piece of silicon chip easily.
Arrange further: voltage output end and the current output terminal of test module are in series with operational amplifier.
Arrange further: test clip is provided with rubber protecting jacket with the connection end of wire.
It is arranged such, convenient when using test clip test clip can be made to open clamp novel cylindrical lithium battery anti-explosion, and rubber protecting jacket is insulation, all the safest.
By using technique scheme, this utility model hinge structure is compared to be had: Novel circular post lithium battery explosion-proof combined block power type internal resistance test device can be made not only to have the function of test internal resistance, can also by line testing circuit detect test internal resistance wire whether be in serviceable condition, and when the wire of detection test internal resistance is broken string the data that detect can the most up to standard with novel cylindrical lithium battery anti-explosion internal resistance manufacture time the data that detect make a distinction mutually, thus avoid the erroneous judgement to novel cylindrical lithium battery anti-explosion quality caused due to detection circuit breaking.And this circuit structure is simple, easy to operate, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of novel cylindrical lithium battery anti-explosion power type internal resistance test device.
Detailed description of the invention
With reference to Fig. 1, novel cylindrical lithium battery anti-explosion power type internal resistance test device is described further.
Embodiment 1: a kind of novel cylindrical lithium battery anti-explosion power type internal resistance test device, includes the power supply circuits to test module for power supply, the inner walkway circuit of detection internal resistance and the line testing circuit of detection circuit on-off state including test clip and test module testing module.
Novel cylindrical lithium battery anti-explosion power type internal resistance test device not only has the function of test internal resistance, can also by line testing circuit detect test internal resistance wire whether be in serviceable condition, and when the wire of detection test internal resistance is broken string the data that detect can the most up to standard with novel cylindrical lithium battery anti-explosion internal resistance manufacture time the data that detect make a distinction mutually, thus avoid the erroneous judgement to novel cylindrical lithium battery anti-explosion quality caused due to detection circuit breaking.
Preferably; test clip is provided with rubber protecting jacket with the connection end of wire; convenient when using test clip test clip can be made to open clamp novel cylindrical lithium battery anti-explosion, and rubber protecting jacket is insulation, all the safest.
Line testing circuit is parallel with audion, base stage and the colelctor electrode of audion are connected with output circuit respectively, by the Low level effective principle of test instrumentation, the output of broken string no current can be converted into low level control and provide judgement, being broken by testing circuit in conjunction with the characteristic of circuit tester, to change system into the internal resistance value measured be infinity to no current, make a distinction mutually owing to manufacturing result that is abnormal and that measure with novel cylindrical lithium battery anti-explosion, so simple in construction, easily distinguish, and low cost of manufacture.
Preferably, audion is switch mosfet pipe, and switch mosfet pipe can serve as variable resistance and also apply be applicable to amplify.Owing to the input impedance of switch mosfet pipe is the highest, therefore coupling electric capacity can be less with capacity, it is not necessary to uses electrolysis condenser.And the highest input impedance of switch mosfet pipe is especially suitable for making impedance transformation, the input stage being usually used in multistage amplifier makees impedance transformation.Switch mosfet pipe can be easily used as constant-current source and be also used as electrical switch.The source electrode of some switch mosfet pipe and drain electrode can exchange use, and grid voltage also can just can be born, and motility is the highest.Switch mosfet pipe can work under conditions of low-voltage at very small area analysis with very, and its manufacturing process can be integrated in a lot of field effect transistor on one piece of silicon chip easily.
Above-mentioned specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
Claims (5)
1. a novel cylindrical lithium battery anti-explosion power type internal resistance test device, including test clip and test module, it is characterised in that: described test module includes the power supply circuits to test module for power supply, the inner walkway circuit of detection internal resistance and the line testing circuit of detection circuit on-off state.
Novel cylindrical lithium battery anti-explosion power type internal resistance test device the most according to claim 1, it is characterised in that: described line testing circuit is parallel with audion, and base stage and the colelctor electrode of audion are connected with output circuit respectively.
Novel cylindrical lithium battery anti-explosion power type internal resistance test device the most according to claim 2, it is characterised in that: described audion is switch mosfet pipe.
Novel cylindrical lithium battery anti-explosion power type internal resistance test device the most according to claim 3, it is characterised in that: voltage output end and the current output terminal of described test module are in series with operational amplifier.
Novel cylindrical lithium battery anti-explosion power type internal resistance test device the most according to claim 1, it is characterised in that: described test clip is provided with rubber protecting jacket with the connection end of wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620293351.0U CN205581207U (en) | 2016-04-08 | 2016-04-08 | Novel explosion -proof combined cover cap power type internal resistance test appearance of cylinder lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620293351.0U CN205581207U (en) | 2016-04-08 | 2016-04-08 | Novel explosion -proof combined cover cap power type internal resistance test appearance of cylinder lithium cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205581207U true CN205581207U (en) | 2016-09-14 |
Family
ID=56865184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620293351.0U Expired - Fee Related CN205581207U (en) | 2016-04-08 | 2016-04-08 | Novel explosion -proof combined cover cap power type internal resistance test appearance of cylinder lithium cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205581207U (en) |
-
2016
- 2016-04-08 CN CN201620293351.0U patent/CN205581207U/en not_active Expired - Fee Related
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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: 20160914 Termination date: 20190408 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |