CN203405512U - Lead acid storage battery shorting current and internal resistance level testing device - Google Patents

Lead acid storage battery shorting current and internal resistance level testing device Download PDF

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Publication number
CN203405512U
CN203405512U CN201320461164.5U CN201320461164U CN203405512U CN 203405512 U CN203405512 U CN 203405512U CN 201320461164 U CN201320461164 U CN 201320461164U CN 203405512 U CN203405512 U CN 203405512U
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China
Prior art keywords
load
battery
internal resistance
resistance
module
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CN201320461164.5U
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Chinese (zh)
Inventor
梅成林
叶千里
刘玮
陈曦
盛超
陈晓科
陈迅
王奕
胡玉岚
张远
罗航
张健
安然然
张俊峰
曾杰
余力鑫
林树胜
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ETOCSIN Inc
SHENZHEN JINXIANG AUTOMATION EQUIPMENT Co Ltd
Electric Power Research Institute of Guangdong Power Grid Co Ltd
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ETOCSIN Inc
SHENZHEN JINXIANG AUTOMATION EQUIPMENT Co Ltd
Electric Power Research Institute of Guangdong Power Grid Co Ltd
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Priority to CN201320461164.5U priority Critical patent/CN203405512U/en
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Abstract

The utility model discloses a lead acid storage battery shorting current and internal resistance level testing device comprising a first load module, a second load module, a system control module and a battery detection module. The first load module is connected in parallel between two ends of a tested battery pack and composed of a discharging load resistor with plural times of resistance value. The second load module is connected in parallel between the two ends of the tested battery pack and composed of the discharging load resistor with plural times of resistance value. The system control module is respectively connected with the first load module and the second load module and used for adjusting resistance value of the first load module or the second load module. The battery detection module is connected between the two ends of each battery of the tested battery pack in a bridging way and connected with the system control module and used for detecting internal resistance of each battery. With application of the testing device, shorting current and internal resistance of a fixed type valve control sealed lead acid storage battery can be accurately, automatically and rapidly measured so that the testing device is stable in measuring results and high in accuracy.

Description

Lead-acid accumulator short-circuit current and internal resistance horizontal detector
Technical field
The utility model relates to accumulator detection technique field, particularly relates to lead-acid accumulator short-circuit current and internal resistance horizontal detector.
Background technology
In a lot of industrial circles and service field, as telecommunications industry, network system, bank are all being used DC power system and uninterruptible power system.And in DC power system and uninterruptible power system, battery pack is being played the part of again of crucial importance and indispensable effect.Because accumulator internal resistance value directly affects battery actual capacity, determine the usability of accumulator.Industry is extensively admitted the critical indicator that accumulator internal resistance value is accumulator property.For this reason, various accumulator internal resistance tester devices and device have been there is.Industry is since putting into effect IEC60896-2 and GB/T19638.2-2005 standard, but up to the present, due to the restriction of on-the-spot test condition, also there is no a kind ofly to meet the requirements, be convenient to the internal resistance of fixed valve-control sealed lead acid battery and short-circuit current to carry out the equipment of automatic test.How whether confirmatory measurement value meets standard, and especially for 100-3000 large-sized battery on time, how meeting standard becomes to the requirement of the heavy-current discharge value of the quick and stable arrival appointment of electric discharge the major issue that accumulator development will face.
Utility model content
Based on this, be necessary for the problems referred to above, a kind of lead-acid accumulator short-circuit current and internal resistance horizontal detector are provided, can, according to standard, measure exactly fixed valve-control sealed lead acid battery short-circuit current and internal resistance.
Short-circuit current and an internal resistance horizontal detector, comprising:
Be connected in parallel on the first load blocks tested electric battery two ends, that formed by the discharge load resistance of plural number times resistance;
Be connected in parallel on the second load blocks described tested electric battery two ends, that formed by the discharge load resistance of plural number times resistance;
The system control module being connected with described the first load blocks, described the second load blocks respectively, for regulating the resistance of described the first load blocks or described the second load blocks;
Be connected across the two ends of described tested each battery of electric battery, and the battery detecting module being connected with described system control module, for detection of the internal resistance of each battery.
Above-mentioned lead-acid accumulator short-circuit current and internal resistance horizontal detector, meet the requirement to IEC60896-2 and GB/T19638.2-2005 prescribed by standard, by the mode of the 2 continuous tunable load module controls electric discharges in road, wherein a road load blocks arrives load regulation by the loop resistance value of prediction and battery voltage 90% left and right that approaches desired discharge current value, there is again another load blocks of same structure to finely tune discharge current, realize the steady electric discharge of 20 seconds 4I10 and 5 seconds 20I10, by battery detecting module, realize accurately again, automatically, measure rapidly fixed valve-control sealed lead acid battery short-circuit current and internal resistance, measurement result is stable, accuracy is high.
Therein in an embodiment: described the first load blocks, comprising: the discharge load resistance of n road parallel connection, each parallel branch is with gauge tap, and its discharge capacity is limited by the break-make of described gauge tap;
Described the second load blocks, comprising: the discharge load resistance of n-2 road parallel connection, and each parallel branch is with gauge tap, and its discharge capacity is limited by the break-make of described gauge tap.
Implement the present embodiment, can realize once and loading, the first load is not done to dynamic adjustment, second load blocks dynamically finely tuned discharge current, realizes 20 seconds 4I 10and 5 seconds 20I 10steady electric discharge.
In an embodiment, also comprise therein:
Be connected across the two ends of described tested electric battery, and the current limliting constant-voltage charge module being connected with described system control module.
Implement the present embodiment, can realize after being full of electricity and repeat test, repeatedly measure and obtain result more accurately.
In an embodiment, also comprise therein:
The control computing machine being connected with described system control module, for arranging preset instructions or drawing current-voltage characteristic curve figure.
Implement the present embodiment, process of measurement can be set or measurement result is expressed with figure line visually.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model lead-acid accumulator short-circuit current and internal resistance horizontal detector;
Fig. 2 is the inner structure schematic diagram of the utility model load blocks;
Fig. 3 is the embodiment schematic diagram of the utility model lead-acid accumulator short-circuit current and internal resistance horizontal detector.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the schematic diagram of the utility model lead-acid accumulator short-circuit current and internal resistance horizontal detector, comprising:
Be connected in parallel on the first load blocks tested electric battery two ends, that formed by the discharge load resistance of plural number times resistance;
Be connected in parallel on the second load blocks described tested electric battery two ends, that formed by the discharge load resistance of plural number times resistance;
The system control module being connected with described the first load blocks, described the second load blocks respectively, for regulating the resistance of described the first load blocks or described the second load blocks;
Be connected across the two ends of described tested each battery of electric battery, and the battery detecting module being connected with described system control module, for detection of the internal resistance of each battery.
Goal of the invention of the present utility model provides a kind of fixed valve-control sealed lead acid battery short-circuit current that meets IEC60896-2 and GB/T19638.2-2005 standard completely and required fixed valve-control sealed lead acid battery short-circuit current and the internal resistance horizontal detector of internal resistance hydraulic test, realize lead-acid accumulator short-circuit current and internal resistance test, in test process, realize 20 seconds 4I 10and 5 seconds 20I 10the quick and stable of electric discharge arrives the heavy-current discharge value of appointment, especially for the large-sized battery of 100-3000 ampere-hour.Utilize 20 seconds 4I 10and 5 seconds 20I 10the voltage difference that twice electric discharge is measured and difference between current calculate internal resistance and the short-circuit current value of each battery.
Load blocks described in the utility model is comprised of 2 load blocks, first load blocks arrives load regulation by the loop resistance value of prediction and battery voltage 90% left and right that approaches desired discharge current value, once load, do not do dynamic adjustment, second load blocks dynamically finely tuned discharge current, realizes 20 seconds 4I 10and 5 seconds 20I 10steady electric discharge, realize and to measure accurately, automatically and quickly fixed valve-control sealed lead acid battery short-circuit current and internal resistance, measurement result is stable, accuracy is high.
Fig. 2 is the inner structure schematic diagram of the utility model load blocks.
Therein in an embodiment: described the first load blocks, comprising: the discharge load resistance of n road parallel connection, each parallel branch is with gauge tap, and its discharge capacity is limited by the break-make of described gauge tap.Can produce successively 0.5A, 1A, 2A ... 2 n-1a electric current;
Described the second load blocks, comprising: the discharge load resistance of n-2 road parallel connection, and each parallel branch is with gauge tap, and its discharge capacity is limited by the break-make of described gauge tap.Can produce successively by produce 0.5A, 1A, 2A ... 2 n-3a electric current.
Implement the present embodiment, can realize once and loading, the first load is not done to dynamic adjustment, second load blocks dynamically finely tuned discharge current, realizes 20 seconds 4I 10and 5 seconds 20I 10steady electric discharge.
The electric current peace multiple of above-mentioned generation is only a preferred embodiment, and the pull-up resistor in parallel that it is plural multiple that the utility model is not got rid of by other connected resistances forms concrete load blocks.
Fig. 3 is the embodiment schematic diagram of the utility model lead-acid accumulator short-circuit current and internal resistance horizontal detector.In the present embodiment, also comprise:
Be connected across the two ends of described tested electric battery, and the current limliting constant-voltage charge module being connected with described system control module.
Implement the present embodiment, can realize after being full of electricity and repeat test, repeatedly measure and obtain result more accurately.
In an embodiment, also comprise therein:
The control computing machine being connected with described system control module, for arranging preset instructions or drawing current-voltage characteristic curve figure.
Implement the present embodiment, process of measurement can be set or measurement result is expressed with figure line visually.
As shown in Figure 3, a kind of fixed valve-control sealed lead acid battery short-circuit current and internal resistance horizontal detector, comprise a system control module, the first load blocks, the second load blocks, current limliting constant-voltage charge module, the battery detecting module of battery cell/module voltage, contact resistance, electric current.In an embodiment, also comprise therein: control computing machine.
Wherein, the first load blocks by produce 0.5A, 1A, 2A ... 2 n-1a electric current, the pull-up resistor that altogether n road can free Parallel Control forms, the second load blocks by produce 0.5A, 1A, 2A ... 2 n-3a electric current ,Gong n-2 road can free Parallel Control pull-up resistor form.
System control module can receive controls computing machine to the preset instructions of its transmission, also can be according to the instruction operation of setting.By system control module, control the first load blocks by 2I 10-40I 10(A) electric current sparks, and by battery detecting module, records battery cell/module voltage, contact resistance, electric current, calculates each several part impedance, thus the whole discharge loop impedance of forecast assessment; Then system control module is controlled first load blocks and load regulation is arrived to 90% left and right that approaches desired discharge current value by the loop resistance value of prediction and battery voltage, once load, do not do dynamic adjustment, second load blocks dynamically finely tuned discharge current, realizes 20 seconds 4I 10(the first point (Uan, Ian), Uan, Ian are the voltage and current value of n batteries when electric discharge finished in 20 seconds) and 5 seconds 20I 10(second point (Ubn, Ibn), the voltage and current value of n batteries when Ubn, Ibn are electric discharge end in 20 seconds) steady electric discharge, with the two point voltage (Uan that estimate, Ubn) and current value, according to family curve U=f(I) linear extrapolation, short-circuit current (Isen) is shown when U=0, and by calculating internal resistance resistance (Rin).Obtain:
Isen=(UanIbn-UbnIan)/(Uan-Ubn)(A)
Rin=(Uan-Ubn)/(Ibn-Ian)(Ω)
As need repeated test, and utilize the tested battery between 4 couples of BAT+ of charging module and BAT-to charge, repeat above-mentioned test after being full of electricity.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims (4)

1. lead-acid accumulator short-circuit current and an internal resistance horizontal detector, is characterized in that, comprising:
Be connected in parallel on the first load blocks tested electric battery two ends, that formed by the discharge load resistance of plural number times resistance;
Be connected in parallel on the second load blocks described tested electric battery two ends, that formed by the discharge load resistance of plural number times resistance;
The system control module being connected with described the first load blocks, described the second load blocks respectively, for regulating the resistance of described the first load blocks or described the second load blocks;
Be connected across the two ends of described tested each battery of electric battery, and the battery detecting module being connected with described system control module, for detection of the internal resistance of each battery.
2. lead-acid accumulator short-circuit current according to claim 1 and internal resistance horizontal detector, is characterized in that:
Described the first load blocks, comprising: the discharge load resistance of n road parallel connection, and each parallel branch is with gauge tap, and its discharge capacity is limited by the break-make of described gauge tap;
Described the second load blocks, comprising: the discharge load resistance of n-2 road parallel connection, and each parallel branch is with gauge tap, and its discharge capacity is limited by the break-make of described gauge tap.
3. lead-acid accumulator short-circuit current according to claim 1 and 2 and internal resistance horizontal detector, is characterized in that, also comprises:
Be connected across the two ends of described tested electric battery, and the current limliting constant-voltage charge module being connected with described system control module.
4. lead-acid accumulator short-circuit current according to claim 1 and 2 and internal resistance horizontal detector, is characterized in that, also comprises:
The control computing machine being connected with described system control module, for arranging preset instructions or drawing current-voltage characteristic curve figure.
CN201320461164.5U 2013-07-30 2013-07-30 Lead acid storage battery shorting current and internal resistance level testing device Active CN203405512U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104880671A (en) * 2014-02-28 2015-09-02 北京谊安医疗系统股份有限公司 Anaesthesia machine accumulator detection apparatus
CN111693782A (en) * 2020-06-24 2020-09-22 珠海伊托科技有限公司 Storage battery internal resistance test and large current tolerance test device with loop resistor
CN112748294A (en) * 2019-10-29 2021-05-04 株洲中车时代电气股份有限公司 Automatic switching control method and test device for load of converter test bed

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104880671A (en) * 2014-02-28 2015-09-02 北京谊安医疗系统股份有限公司 Anaesthesia machine accumulator detection apparatus
CN104880671B (en) * 2014-02-28 2019-04-26 北京谊安医疗系统股份有限公司 The detection device of Anesthesia machine battery
CN112748294A (en) * 2019-10-29 2021-05-04 株洲中车时代电气股份有限公司 Automatic switching control method and test device for load of converter test bed
CN111693782A (en) * 2020-06-24 2020-09-22 珠海伊托科技有限公司 Storage battery internal resistance test and large current tolerance test device with loop resistor

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