CN105759110A - Leak current testing method for anti-open-circuit protection diode assembly of hydrogen-nickel battery - Google Patents
Leak current testing method for anti-open-circuit protection diode assembly of hydrogen-nickel battery Download PDFInfo
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- CN105759110A CN105759110A CN201410798491.9A CN201410798491A CN105759110A CN 105759110 A CN105759110 A CN 105759110A CN 201410798491 A CN201410798491 A CN 201410798491A CN 105759110 A CN105759110 A CN 105759110A
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Abstract
The invention relates to a leak current testing method for an anti-open-circuit protection diode assembly of a hydrogen-nickel battery. The invention belongs to the technical field of hydrogen-nickel battery component testing. The method is characterized in that a current DC power source and a digital universal multimeter having voltage and current metering functions are utilized for constructing the leak current testing method for the anti-open-circuit protection diode assembly of the hydrogen-nickel battery used for space through lead connection; simple switching between the voltage metering function and the current metering function is utilized for adjusting power output voltage and metering leak current of the diode assembly, so that leak current testing for the anti-open-circuit protection diode assembly is realized. The method is simple in application, reliable in performance, light and flexible in equipment, high in testing efficiency, high in metering precision and the like.
Description
Technical field
The invention belongs to Ni_MH batteries component testing technical field, particularly relate to a kind of anti-open-circuit-protection diode assembly drain current test method of hydrogen nickel storage battery for space.
Background technology
At present, in order to improve the reliability of Ni_MH batteries, it is prevented that a cell open failure causes whole group of inefficacy, set of cells requires between the positive and negative terminals of each cell an anti-open-circuit-protection diode assembly in parallel.This assembly is cold standby device, and a key technical indexes is applied voltage 1.6V, and leakage current is less than 20mA, during hydrogen-nickel battery normal operation, cell voltage is typically between 1.0～1.55V, and diode assembly two ends applied voltage is monomer battery voltage, and in diode assembly, the electric current of conducting is only small.Only when cell open failure, the diode assembly being connected in parallel on no longer is clamped down on by cell voltage, and bearing voltage will more than 1.6V, and assembly forward conduction thereon in parallel plays the effect of by-pass current.For determining diode assembly performance, it is generally required to before diode assembly bonding wire, after bonding wire the 100% measuring diode assembly leakage current when additional 1.6V voltage (requiring less than 20mA).
By retrieving, do not see the method for testing of the anti-open-circuit-protection diode assembly leakage current of hydrogen nickel storage battery for space.General diode assembly leakage current utilizes oscillograph to test, and test equipment is heavy, expensive, and its direct result is an I-V characteristic curve, it is necessary to according to the curve estimation leakage current at specific voltage place, certainty of measurement is poor.Or adopt TLP (TransmissionLinePulse) test system and test, this TLP method retrieved, utilize short pulse punching (20-200ns) to measure esd protection circuit current/voltage characteristic in integrated circuit.TLP adopts relatively simple two ends test system, it is easy to repeating, practicality is higher.But this method needs special instrument, possesses the function forming simple pulse, it is primarily adapted for use in the test of high-volume chip-scale.Existing for the test of " hydrogen nickel storage battery for space anti-open-circuit-protection diode assembly " (internal containing multiple diode series parallel structures) leakage current cannot the technical problem such as quick and easy, accurate test.
Summary of the invention
The present invention solves that the technical problem existed in known technology provides a kind of anti-open-circuit-protection diode assembly drain current test method of hydrogen nickel storage battery for space.
It is an object of the invention to provide one and have method of testing simply, dependable performance, test equipment is light, flexible, and testing efficiency is high, the anti-open-circuit-protection diode assembly drain current test method of hydrogen nickel storage battery for space of certainty of measurement high.
For improving certainty of measurement and measuring efficiency; the present invention utilizes ready-made DC source and digital multimeter (possessing voltage, current measurement function); connected by wire; and the simple switching between voltage, current measurement function; utilize common instrument and equipment, build a set of anti-open-circuit-protection diode assembly leakage current test system.This test system only needs: 1 small-sized DC power supply (can export 1.6V voltage), 1 piece of digital multimeter (～1.6V voltage ,～1A current measurement function) and 3 thin wires (can bear maximum 1A electric current, each wire two ends weld clip or binding post, constitute cable 1, cable 2, cable 3).Connect by figure and namely constitute the anti-open-circuit-protection diode assembly leakage current test system of hydrogen-nickel battery.
The method of the anti-open-circuit-protection diode assembly leakage current of hydrogen nickel storage battery for space of the present invention, said method comprising the steps of: 1, makes and measures cable (3)；2, measurement circuitry is connected；3, electric power output voltage is adjusted；4, measuring diode assembly leakage current.
The anti-open-circuit-protection diode assembly drain current test method of hydrogen nickel storage battery for space of the present invention is adopted the technical scheme that:
A kind of anti-open-circuit-protection diode assembly drain current test method of hydrogen nickel storage battery for space, it is characterized in: hydrogen nickel storage battery for space anti-open-circuit-protection diode assembly drain current test method is to utilize ready-made DC source and possess voltage, the digital multimeter of current measurement function, connected by wire, build the anti-open-circuit-protection diode assembly leakage current test device of a set of hydrogen nickel storage battery for space, pass through voltage, simple switching between current measurement function, adjust electric power output voltage, measuring diode assembly leakage current, realize the test of anti-open-circuit-protection diode assembly leakage current.
The anti-open-circuit-protection diode assembly drain current test method of hydrogen nickel storage battery for space of the present invention can also adopt the following technical scheme that
The anti-open-circuit-protection diode assembly drain current test method of described hydrogen nickel storage battery for space, is characterized in: DC power output voltage is 1.6V, digital multimeter range reaches 1.6V voltage, 1A electric current.
The anti-open-circuit-protection diode assembly drain current test method of described hydrogen nickel storage battery for space, is characterized in: wire is 3 connection wires that can bear 1A electric current, and each wire two ends weld clip or binding post constitute cable.
The present invention has the advantage that and has the benefit effect that
The technical scheme that hydrogen nickel storage battery for space anti-open-circuit-protection diode assembly drain current test method is brand-new owing to have employed the present invention, compared with prior art, the invention have the characteristics that:
1. test equipment is light, flexible.Power supply, circuit tester performance requirement low, equipment is small and exquisite, easily look for, and conflicts little, is built by thin wire during test temporarily, and test process is not limited by place；
2. method of testing is simple.After setting equipment by test philosophy figure, utilizing special wire to connect simple, utilize forward and reverse binding post measurement of alligator clamp gripping diode assembly, measurement result is stable；
3. testing efficiency is high.This kind of method of testing substitutes oscillographic method of testing comprehensively, and the testing time, by 1 minute/, brings up to 10 seconds/；
4. certainty of measurement is high.Leakage current measurement precision is accurate to 0.01mA by original 1mA level, it is possible to the situation of change of the forward and backward diode assembly leakage current of comparison bonding wire more intuitively, well judges the concordance of diode behavior.
Accompanying drawing explanation
Fig. 1 is the anti-open-circuit-protection diode assembly leakage current test circuit connection diagram of hydrogen nickel storage battery for space.
In figure, 1-cable 1,2-diode assembly, 3-cable 2,4-DC power supply, 5-cable 3,6-digital multimeter.
Detailed description of the invention
For the summary of the invention of the present invention, feature and effect can be further appreciated that, hereby enumerate following example, and it be as follows to coordinate accompanying drawing to describe in detail:
With reference to Fig. 1.
Embodiment 1
A kind of anti-open-circuit-protection diode assembly drain current test method of hydrogen nickel storage battery for space; under common electrical appointed condition (1 power supply, 1 piece of digital multimeter), can quickly, accurately measure the anti-open-circuit-protection diode assembly leakage current of hydrogen-nickel battery.By making three simple cables; connect power supply, digital multimeter and tested protection diode assembly; power supply is utilized to add a reverse bias voltage at protection diode assembly two ends; confirm that magnitude of voltage is in the scope required by digital multimeter again; then digital multimeter is switched to current measurement shelves; access protection diode assembly, it is possible to quickly, accurately measure protection diode assembly forward leakage current under regulation reverse bias voltage effect.The anti-open-circuit-protection diode assembly drain current test method of this hydrogen nickel storage battery for space is simple, and test equipment is light, flexible, and testing efficiency, certainty of measurement are high, are not limited by place, is particularly well-suited to the quick confirmation of components and parts major parameter before set of cells assembles.
The enforcement step that the present invention is concrete includes:
1. connect power supply, digital multimeter with the cable made in advance；
2. opening power, confirms output voltage by digital multimeter；
3. illustrate the voltage measurement function of digital multimeter is switched to current measurement function by instrumentation；
4. access anti-open-circuit-protection diode assembly；
5. measure, record leakage current value；
6. change tested protection diode assembly, in like manner measure its leakage current value；
7. often measure a number of protection diode assembly, utilize the voltage measurement function of digital multimeter, confirm that supply voltage is whether in range of normal value.
Adopt method of the invention, it is possible to quick, easy carries out accurate leakage current measurement to the protection diode assembly that namely will install on Ni_MH batteries, it is possible to well guarantee the reliability of hydrogen-nickel battery protection diode assembly and accumulator battery.
The concrete test process of the present embodiment:
1. make cable: take 3 wires, line length 0.5m.Cable 1: one welds red binding post (just connecing voltmeter), and red alligator clamp (folder diode assembly is just) is welded in other end；Cable 2: one welds red wiring fork (just connecing power supply), and black alligator clamp (folder diode assembly is born) is welded in other end；Cable 3: one welds black binding post (connecing voltmeter to bear), and black wiring fork (connecing power supply to bear) is welded in other end；
2. wiring: the binding post of cable 1 connects the voltage measurement on voltmeter just (red hole)；The wiring fork-join power supply of cable 2 is just；The binding post of cable 3 connects the voltage measurement on voltmeter negative (black holes), and the wiring fork-join power supply of the other end is born；
3. adjust electric power output voltage: digital multimeter is determined and is transferred to voltage measurement shelves (DCV shelves), alligator clamp (red) on cable 1 is clipped together with the alligator clamp (black) on cable 2, then opening power, monitor the voltage readings on voltmeter, output voltage values is transferred to 1.6V；
4. voltage measurement function switches to current measurement function: take alligator clamp red, black apart, voltmeter by voltage measurement function switch to current measurement function (if Agilent 34401A, voltage measurement shelves switch to current measurement shelves method: first press shift key, then press DCA shelves)；
5. access anti-open-circuit-protection diode assembly: the total negative (lead-out wire on the ceramics pole of diode assembly of the anti-open-circuit-protection diode assembly of black clip hydrogen-nickel battery; one post is just; it is in parallel inside two posts), red clip diode assembly just (on diode shell lead-out wire)；
6. measure, record leakage current value: the measured value on reading number circuit tester, be the leakage current value of diode assembly record；
7. changing protection diode assembly: the total of the anti-open-circuit-protection diode assembly of another hydrogen-nickel battery of black clip bears, red clip diode assembly just, changes other protection diode assemblies, in like manner measures its leakage current value:
Supply voltage confirms: often survey 10 diode assemblies, by current measurement shelves, digital multimeter is switched to voltage measurement shelves (by DCV shelves), red-black clip one piece, monitors magnitude of voltage, confirms that whether supply voltage is also at 1.6V.
The good effects such as it is simple that the present embodiment has described method of testing, dependable performance, and test equipment is light, flexible, and testing efficiency is high, and certainty of measurement is high.
Claims (3)
1. the anti-open-circuit-protection diode assembly drain current test method of hydrogen nickel storage battery for space, it is characterized in that: hydrogen nickel storage battery for space anti-open-circuit-protection diode assembly drain current test method is to utilize ready-made DC source and possess voltage, the digital multimeter of current measurement function, connected by wire, build the anti-open-circuit-protection diode assembly leakage current test device of a set of hydrogen nickel storage battery for space, pass through voltage, simple switching between current measurement function, adjust electric power output voltage, measuring diode assembly leakage current, realize the test of anti-open-circuit-protection diode assembly leakage current.
2. the anti-open-circuit-protection diode assembly drain current test method of hydrogen nickel storage battery for space according to claim 1, is characterized in that: DC power output voltage is 1.6V, digital multimeter range reaches 1.6V voltage, 1A electric current.
3. the anti-open-circuit-protection diode assembly drain current test method of hydrogen nickel storage battery for space according to claim 1, is characterized in that: wire is 3 connection wires that can bear 1A electric current, and each wire two ends weld clip or binding post constitute cable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410798491.9A CN105759110A (en) | 2014-12-19 | 2014-12-19 | Leak current testing method for anti-open-circuit protection diode assembly of hydrogen-nickel battery |
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| CN201410798491.9A CN105759110A (en) | 2014-12-19 | 2014-12-19 | Leak current testing method for anti-open-circuit protection diode assembly of hydrogen-nickel battery |
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| CN105759110A true CN105759110A (en) | 2016-07-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180937A (en) * | 2017-12-19 | 2018-06-19 | 四川大唐国际甘孜水电开发有限公司 | Sensor safely changes method in a kind of power plant control system observation circuit |
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| EP1333570A3 (en) * | 2002-01-31 | 2004-09-08 | Diehl AKO Stiftung & Co. KG | Method and circuit arrangement for current measuring and limitation |
| CN200986577Y (en) * | 2006-11-20 | 2007-12-05 | 封舸 | LED leakage current detecting device |
| CN101545945A (en) * | 2008-03-25 | 2009-09-30 | 中芯国际集成电路制造(上海)有限公司 | Method for testing leakage current of MOS device |
| CN202794292U (en) * | 2012-06-27 | 2013-03-13 | 惠州市德赛西威汽车电子有限公司 | Device for testing standby current |
| CN203069650U (en) * | 2013-02-22 | 2013-07-17 | 袁志贤 | Three-LED leakage current detector |
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2014
- 2014-12-19 CN CN201410798491.9A patent/CN105759110A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1333570A3 (en) * | 2002-01-31 | 2004-09-08 | Diehl AKO Stiftung & Co. KG | Method and circuit arrangement for current measuring and limitation |
| CN200986577Y (en) * | 2006-11-20 | 2007-12-05 | 封舸 | LED leakage current detecting device |
| CN101545945A (en) * | 2008-03-25 | 2009-09-30 | 中芯国际集成电路制造(上海)有限公司 | Method for testing leakage current of MOS device |
| CN202794292U (en) * | 2012-06-27 | 2013-03-13 | 惠州市德赛西威汽车电子有限公司 | Device for testing standby current |
| CN203069650U (en) * | 2013-02-22 | 2013-07-17 | 袁志贤 | Three-LED leakage current detector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180937A (en) * | 2017-12-19 | 2018-06-19 | 四川大唐国际甘孜水电开发有限公司 | Sensor safely changes method in a kind of power plant control system observation circuit |
| CN108180937B (en) * | 2017-12-19 | 2020-09-18 | 四川大唐国际甘孜水电开发有限公司 | Safe replacement method for sensor in monitoring circuit of power plant control system |
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