CN103869249B - Storage battery test bench installation - Google Patents
Storage battery test bench installation Download PDFInfo
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- CN103869249B CN103869249B CN201210541994.9A CN201210541994A CN103869249B CN 103869249 B CN103869249 B CN 103869249B CN 201210541994 A CN201210541994 A CN 201210541994A CN 103869249 B CN103869249 B CN 103869249B
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- cooling piece
- storage battery
- test bench
- battery test
- power tube
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Abstract
The present invention proposes a kind of storage battery test bench installation, including Switching Power Supply, multiple relay, current sensor, the storage battery being connected with current sensor, multiple cooling piece group, multiple power tube and the controller controlling described power tube, wherein, Switching Power Supply is connected by the positive pole of the contact of described relay with the cooling piece in described cooling piece group, the negative pole of the cooling piece in described cooling piece group is connected to the drain electrode of described power tube, and the end that controls of described power tube is connected to the output port of controller。Storage battery test bench installation according to the present invention, it is possible to meet the complicated requirement in storage battery test with simple structure。
Description
Technical field
The present invention relates to storage battery technology。Particularly relate to the technology that new storage battery is carried out actual capacity test。
Background technology
In order to new storage battery is carried out actual capacity test, accumulator to be placed in the water-bath that temperature is 25 DEG C ± 2 DEG C, after the fully charged end of battery in 1h ~ 5h, when electrolyte temperature reaches 25 DEG C ± 2 DEG C, terminate when reaching 10.5V ± 0.05V with 20A current discharge to accumulator voltage, the record discharge period, thus calculating actual capacity。In above-mentioned process of the test, it is necessary to the monitoring accurately controlled with battery temperature of water temperature, it is desirable to charging current and discharge current are controlled, and assay device needs enough cooling requirements。
Prior art adopt traditional refrigeration modes to realize above-mentioned temperature control, as adopted heat pump air conditioner technology。But adopt such technical equipment complicated and bulky, the requirement of experimental enviroment is higher。Thus, it is desirable to have a kind of new technology overcomes the deficiencies in the prior art。
Summary of the invention
The present invention is in view of the above problems, it is desirable to provide a kind of simple in construction and have the storage battery test bench installation that disclosure satisfy that enough cooling requirements。
The storage battery test bench installation of the present invention includes Switching Power Supply, relay, current sensor, the storage battery being connected with current sensor, multiple cooling piece group, multiple power tube and controls the controller of the plurality of power tube, wherein, described Switching Power Supply is connected by the positive pole of the contact of described relay with the cooling piece in described cooling piece group, the negative pole of the cooling piece in described cooling piece group is connected to the drain electrode of described power tube, and the end that controls of described power tube is connected to the output port of controller。
Preferably, described controller selects the power tube being connected from different cooling piece groups to be heated by the plurality of relay。
Preferably, the power tube that described controller controls to be connected from different cooling piece groups works with pulse width modulation mode。
Preferably, described controller is AVR single chip。
Preferably, described Switching Power Supply provides 16V voltage。
By storage battery test bench installation, it is possible to meet the sophisticated testing requirement of different tests specification in storage battery test with simple structure。
Storage battery test bench installation according to the present invention, it is possible to the combination in devices multiple in prior art is simplified to a workpiece, it is possible to simplied system structure, has the advantage that can complete in a casing。And, in the control process of discharge and recharge, adopt PWM control mode that cooling piece and battery are controlled, therefore, it is possible to carry out the control of the charge/discharge operation to storage battery and temperature accurately。
Accompanying drawing explanation
For ease of understanding, by not limiting example, embodiments of the invention are described with reference to the accompanying drawings。In figure:
Fig. 1 illustrates cooling piece structure；
Fig. 2 illustrates cooling piece group structure；
Fig. 3 illustrates the operation principle of the cooling piece heated up and under holding mode；
Fig. 4 illustrates the operation principle of the cooling piece under charge mode；
Fig. 5 illustrates the operation principle of the cooling piece under discharge mode；
Fig. 6 indicates that the system block diagram of the controller in the present invention。
Detailed description of the invention
Be described below be the present invention multiple embodiments in some, it is desirable to provide the basic understanding to the present invention。It is not intended as confirming the crucial of the present invention or conclusive key element or limiting scope of the claimed。
Fig. 1 is the schematic diagram of cooling piece structure。The main working parts of cooling piece is quasiconductor PN level。When at PN level two ends plus current potential in the same direction, it will the transfer of heat occurs in PN level。The P pole of PN level turns cold and the heating of N pole。The efficiency of this kind of refrigeration modes is approximately in 60%。So inputting the power of 100W and will produce the refrigeration of 60W at cold end, and will produce the heating effect of 160W in hot junction, this includes the heat transfer 60W heat produced plus the required electric current of the transfer provided。It is enough for storage battery assay device。The power of cooling piece is determined by the number of the PN level arranged in unit are。The cooling piece of next 40mm*40mm area of ordinary circumstance can accomplish more than electric current 10A, and power is more than 100W。
Adopting multiple cooling piece group, cold and hot surface replaces and quadrature arrangement, by independent control, it is possible to realize refrigeration and the effect heated。Fig. 2 illustrates the structure of cooling piece group。As in figure 2 it is shown, in the storage battery pilot system of the present invention, use a controller (not representing in fig. 2), a Switching Power Supply, control the discharge and recharge of two batteries, component units (now cooling piece is set to 16 groups) structure, system always has 5 groups。Controller such as can adopt single-chip microcomputer to realize, specifically can referring to Fig. 6。Fig. 6 indicates that the system block diagram of the controller in the present invention。As shown in Figure 6, controller is made up of multiple AVR single chip, and performs serial communication between AVR single chip。
In a unit, in storage battery 1 side, cold is replaced and quadrature arrangement by PN level P11, P12, P13, P14, P15, P16, P17, P18 cold and hot surface with backing, in storage battery 2 side, cold is replaced and quadrature arrangement by PN level P21, P22, P23, P24, P25, P26, P27, P28 cold and hot surface with backing。
Fig. 3 illustrates the operation principle of the cooling piece heated up and under holding mode。Switching Power Supply provides 16V voltage, and the control end of VMOS power tube P10, to electronegative potential, is not turned on。The electric current that such Switching Power Supply provides by the movable contact of relay S11 and the normally engaged contact of relay S12 to the positive pole (N pole) of 8 cooling piece groups (biplate one group), the negative pole (P pole) of cooling piece is connected to the drain electrode of power tube, the control end of power tube connects AVR single chip port to select heating group P12, P14, P16, P18 to work with PWM mode, grounded drain, restriction maximum current works under 40A state。Wherein, the control end of power tube connects AVR single chip port, and AVR single chip is used as controller in the present invention here。
It has been found that, as with 80A/16V to the 30L water body heat run used time being: 45 ~ 50 minutes。So single group peak power is: 40 (A) × 16 (V) × 2 (group)=1280(W), and whole stand general power is: 1280 × 5=6400(W)。As selected use tank, owing to the ratio of surface area/water yield is than test water groove, similarity condition warm-up time will shorten, if used: 25(A) × 16V × 10=4000(W) can meet Elevated Temperature Conditions, heat consistent with the selection of charging。Additionally at heated condition, radiator freezes, and blower fan can not work, and temperature is not less than 0 DEG C。
If required temperature is more than ambient temperature, owing to the temperature of water tank outwards distributes, so heating up and holding stage P12, P14, P16, P18 participation work。Unless ambient temperature just uses P11, P13, P15, P17 to realize the effect freezed more than water tank temperature or when needing rapid cooling。
Fig. 4 illustrates charge mode。When temperature 25 DEG C ± 1 DEG C, after carrying out certain insulation, charge mode just can be entered。Now, in relay adhesive, S11 swing arm is connected with being connected anode contact, electric current by very in conjunction with contact to battery, again through a VMOS power tube, when making charging current maintain 25A under PWM mode, form charge circuit with entering。
Generally, 16V power supply all can more than 25A to the charging current of battery。Here having a phenomenon, namely charging initial stage storage battery terminal voltage is low but the internal resistance of cell is big；But after storage battery charges, terminal voltage rises, and internal resistance have dropped。That is charging start to charging complete charge stream change despite the presence of, but not quite。Therefore need to arrange PWM control at the negative pole of battery, by the change of the angle of flow of power tube, realize charging current and plan at 25A。
Fig. 5 illustrates the operation principle of the cooling piece under discharge mode。Fig. 5 illustrates the discharge mode under time-dependent current discharge test (electric current is 10A respectively, 20A, 30A, 40A)。
Discharge mode 1 time, temperature is 40 DEG C ± 1 DEG C (test has 25 ° of C of two kinds of temperature profile and 40 ° of C), and discharge current is 10A。Fig. 5 is 40 DEG C ± 1 DEG C duty of temperature, and because discharge current works when 10A, battery discharge current may not meet requirement (general power=10(A) the * 10(group of insulation) * 15V=1500W)。Now allow power tube P10 set high potential and turn on into ground, S11 and S12 adhesive simultaneously。Material is thus formed two performance loop。One route battery sets out offers, electric current by the very engaging contact of S11 to four, top cooling piece group, P12, P14 cooling piece in the way of heating in the work of PWM control mode, to ensure that discharge current maintains 10A and forms performance loop with entering。Separately having a routing switch power supply to provide, give cold group of following quadruple diversity system through the movable contact of relay S12, wherein P16, P18 work heating under PWM mode, the deviation of adjustment water temperature。
Discharge mode 2 times, temperature is 40 DEG C ± 1 DEG C, discharge current 20A。Refer again to Fig. 5, if now the discharge current of 20A can not meet the requirement of insulation, namely by the adhesive of S12, Switching Power Supply provide electric current to carry out temperature-compensating；If the energy that 20A electric current can exceed that insulation provides, now S12 not adhesive, carry out temperature control mode by the mode of cooling piece heating and refrigeration alternation and temperature is fallen。Discharge mode 3 times, temperature is 40 DEG C ± 1 DEG C, discharge current 30A and 40A。The power now provided enough is incubated, and has bigger more than needed needs to dispel the heat。Now relay S12 adhesive, the electric current of all cooling pieces is all provided by battery；The now control of temperature then by alternately allowing cooling piece group at hotter and refrigerating state down conversion, realizes the adjustment of temperature。
Furtherly: assume that working as temperature 40 DEG C ± 0.1 DEG C situation is that two groups of refrigeration heat work with two groups, when being found that overgauge and temperature in temperature monitoring process higher than 40.1 DEG C, cancels one group of refrigeration work, increases by one group of heating work；Continue monitoring, be then further added by one group of refrigeration work as temperature continues to rise, deduct one group and heat work, otherwise return to two groups and add gentle two groups of refrigeration modes。
Discharge mode 4 times, temperature is 25 DEG C ± 1 DEG C, and discharge current is above 10A, 20A, 30A, 40A(be 25 DEG C ± 1 DEG C for temperature, and discharge current is 10A, 20A, 30A, 40A)。When temperature 25 DEG C ± 1 DEG C, if ambient temperature is close to water temperature, the electric current of storage battery will shed completely in the way of heat energy, it can be seen that will have maximum: 40(A) * 10(group) * 14(V) heat radiation power of=5600W。
Storage battery test bench installation according to the present invention, it is possible to the combination in devices multiple in prior art is simplified to a workpiece, it is possible to simplied system structure, has the advantage that can complete in a casing。And, adopt PWM control mode that Switching Power Supply is controlled in the control process of discharge and recharge, therefore, it is possible to carry out the control of the charge/discharge operation to storage battery and temperature accurately。
Example above primarily illustrates storage battery test bench installation of the present invention。Although only some of them the specific embodiment of the present invention being described, but those of ordinary skill in the art it is to be appreciated that the present invention can without departing from its spirit with scope in many other form implement。Therefore, the example shown and embodiment are considered illustrative and not restrictive, and when the of the present invention spirit and scope defined without departing from such as appended claims, the present invention is likely to contain various amendments and replacement。
Claims (4)
1. a storage battery test bench installation, including Switching Power Supply, multiple relays, current sensor, the storage battery being connected with current sensor, multiple cooling piece groups, multiple power tubes and control the controller of described power tube, wherein, described Switching Power Supply is connected by the positive pole of the contact of described relay with the cooling piece in described cooling piece group, the negative pole of the cooling piece in described cooling piece group is connected to the drain electrode of described power tube, the end that controls of described power tube is connected to the output port of controller, described controller selects the cooling piece group being connected from different power tubes to be heated by the plurality of relay。
2. storage battery test bench installation as claimed in claim 1, wherein, the power tube that described controller controls to be connected from different cooling piece groups works with pulse width modulation mode。
3. storage battery test bench installation as claimed in claim 1 or 2, wherein, described controller is AVR single chip。
4. storage battery test bench installation as claimed in claim 1 or 2, wherein, described Switching Power Supply provides 16V voltage。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210541994.9A CN103869249B (en) | 2012-12-14 | 2012-12-14 | Storage battery test bench installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210541994.9A CN103869249B (en) | 2012-12-14 | 2012-12-14 | Storage battery test bench installation |
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| Publication Number | Publication Date |
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| CN103869249A CN103869249A (en) | 2014-06-18 |
| CN103869249B true CN103869249B (en) | 2016-06-22 |
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| CN201210541994.9A Active CN103869249B (en) | 2012-12-14 | 2012-12-14 | Storage battery test bench installation |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112379167A (en) * | 2020-03-20 | 2021-02-19 | 湖北中烟工业有限责任公司 | Resistance temperature coefficient measuring device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533917A (en) * | 2009-04-02 | 2009-09-16 | 大连理工大学 | Device for heating and refrigerating flowing liquid |
| CN101762800A (en) * | 2010-01-28 | 2010-06-30 | 北京航空航天大学 | Battery managing system testing platform |
| CN102207540A (en) * | 2010-03-30 | 2011-10-05 | 河南电力试验研究院 | Remote storage battery checking discharging test device |
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2012
- 2012-12-14 CN CN201210541994.9A patent/CN103869249B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533917A (en) * | 2009-04-02 | 2009-09-16 | 大连理工大学 | Device for heating and refrigerating flowing liquid |
| CN101762800A (en) * | 2010-01-28 | 2010-06-30 | 北京航空航天大学 | Battery managing system testing platform |
| CN102207540A (en) * | 2010-03-30 | 2011-10-05 | 河南电力试验研究院 | Remote storage battery checking discharging test device |
Non-Patent Citations (1)
| Title |
|---|
| 直接甲醇燃料电池测试系统集成及实验研究;孔令华;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑 》;20100715(第7期);12-21 * |
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| CN103869249A (en) | 2014-06-18 |
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