CN201392388Y - Single body voltage on-line monitoring device for accumulator battery - Google Patents
Single body voltage on-line monitoring device for accumulator battery Download PDFInfo
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- CN201392388Y CN201392388Y CN200820145337U CN200820145337U CN201392388Y CN 201392388 Y CN201392388 Y CN 201392388Y CN 200820145337 U CN200820145337 U CN 200820145337U CN 200820145337 U CN200820145337 U CN 200820145337U CN 201392388 Y CN201392388 Y CN 201392388Y
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- precision
- converter
- accumulator battery
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Abstract
The utility model relates to a single body voltage on-line monitoring device for an accumulator battery. The device comprises an accumulator battery, a voltage division circuit, a multiway analog switch, a high-precision AD (analog-digital) convertor and a main control single chip microcomputer, wherein after the output voltage of each battery in the accumulator battery is divided by a resistor, each battery is connected to the multiway analog switch array to select a battery to be tested; after the voltage of the battery to be tested is divided, the battery to be tested is connected to the high-precision AD convertor; the main control single chip microcomputer reads the acquired voltage value of the AD convertor through an I(2)C communication bus; and then the voltage value of the battery to be tested is converted through the main control single chip microcomputer. The device simplifies a single body voltage on-line monitoring circuit for the accumulator battery and improves the working reliability of the accumulator battery, thereby meeting the specific demand on the real-time monitoring to the accumulator battery.
Description
Technical field
The utility model relates to the circuit arrangement that a kind of accumulator battery voltage is measured, a kind of battery pack monomer voltage on-Line Monitor Device of more specifically saying so.
Background technology
In this society now based on industry, the application of reserve direct supply more and more widely, the accumulator of direct supply important component part in support, the good and bad state of its performance condition just seems particularly important for the normal operation that guarantees the reserve direct supply.
But along with maintenance-free battery is widely used, problem displays gradually: most of maintenance-free batteries compare the much shorter of wanting of expectation serviceable life; Individual cell lost efficacy and causes whole Battery pack to lose efficacy; After accumulator was installed, shortage science, effective monitoring management means can not in time be made judgement accurately to the reasonable use of accumulator; Owing to use the field condition restriction, be difficult to carry out manual inspection, and test data analysis need the O﹠M personnel to have very high professional level; Manual detection also can be brought many problems: manually can not be to every highly dense measurement that battery is synchronous except needs waste great amount of manpower; Manually be subject to the various factors influence, measuring accuracy can't guarantee; The data of manual record are difficult to be organized into effective information, are unfavorable for analyzing.The discovery of paroxysmal battery failures is difficult to guarantee in time to find; The unreasonable situation of system is failed in time to find and handle to the injury of accumulator, has been had a strong impact on the reliably working of accumulator.
In order to ensure the reliably working of accumulator, present common practices is that accumulator is carried out on-line monitoring, obtains its operational factor such as battery real-time voltage, capacity etc., judges the quality of battery with this.Accumulator on-line monitoring terminal mainly realizes the isoparametric on-line monitoring of battery tension.In actual the use, the quantity of battery pack is many, and the total voltage of multi-section serial battery group is generally all than higher.There is proposition switch to gather the battery pack monomer voltage at present by mechanical relay, also have and propose to gather single battery voltage by bus isolation method (wired or wireless), but the circuit of this two classes battery pack monomer voltage on-line monitoring is more complicated all, the cost of system is higher, the reliability of simultaneity factor is not high yet, has limited the large-area applications of system.Therefore, how to improve and simplify the focus and research difficult point that more piece accumulator on-line monitoring terminal is this type systematic always.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned shortcoming, satisfy the needs that this part increases day by day, the invention provides a kind of equipment that can realize the electric battery on-line monitoring, utilize analog switch to finish selection, finish the measurement of cell voltage by the high-precision A converter of built-in difference channel and programmable gain amplifier measured battery.
For achieving the above object, technology path of the present utility model is: install by the electric power storage group, and bleeder circuit, multiselect 1 analog switch, high-precision A converter and main control singlechip constitute, wherein built-in difference channel of high-precision A converter and programmable gain amplifier.The output voltage of each battery of battery pack through behind the electric resistance partial pressure, is connected to the multiway analog switch array earlier, is connected to the high-precision A converter, passes through I between main control singlechip and the high-precision A converter
2The C communication bus connects.
After adopting technical solutions of the utility model, simplify the on-line monitoring circuit of battery pack monomer voltage, improved the reliability of battery pack work, satisfied the battery pack real needs of monitoring in real time.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a system chart of the present utility model.
Fig. 2 is the power principle figure of an embodiment of the present utility model
Embodiment
In example shown in Figure 1, module 1 is the electric power storage group, and module 2 is a bleeder circuit, and module 3 is multiselect 1 analog switch, and module 4 is the high-precision A converter, and module 5 is a main control singlechip.
In example shown in Figure 2, BT1～BT6 is a battery pack to be measured, U1 and U2 (model is 4051) 8 select 1 analog switch, and U3 (model is ADS1110) is the high-precision A converter of built-in differential conversion and programmable amplifier, and U4 is main control singlechip (model is PIC16F877A).
Wherein, behind BT1～BT6 bleeder circuit that process resistance R 1 and R7, R2 and R8, R3 and R9, R4 and R10, R5 and R11, R6 and R12 constitute earlier respectively, be connected to the input end of U1 and U2, wherein: VIN1 is connected to U1 (X1 pin) and U2 (X2 pin), VIN2 is connected to U1 (X2 pin) and U2 (X3 pin), VIN3 is connected to U1 (X3 pin) and U2 (X4 pin), VIN4 is connected to U1 (X4 pin) and U2 (X5 pin), VIN5 is connected to U1 (X5 pin) and U2 (X6 pin), and VIN6 is connected to U1 (X6 pin) and U2 (X7 pin); U1 (A pin) and U2 (A pin) are connected to U4 (RB0 pin), and U1 (B pin) and U2 (B pin) are connected to U4 (RB1 pin), and U1 (C pin) and U2 (C pin) are connected to U4 (RB2 pin); U1 (INH) and U2's, the output terminal X of U1 and U2 is connected respectively to VIN+, the VIN-pin of high-precision A converter U3, the I of U3
2C communication bus pin SDA, SCL are connected to U4, and U3 finishes corresponding operating by U4 control, and R13 and R14 are I
2C communication resistance.
Claims (2)
1, a kind of device of battery pack monomer voltage on-line monitoring, it is characterized in that device is by installing by the electric power storage group, bleeder circuit, multiselect 1 analog switch, high-precision A converter and main control singlechip constitute, and the battery pack output voltage through behind the electric resistance partial pressure, is connected to the multiway analog switch array earlier, be connected to the high-precision A converter, pass through I between main control singlechip and the high-precision A converter
2The C communication bus connects the collection magnitude of voltage that reads AD converter.
2, battery pack monomer voltage on-Line Monitor Device according to claim 1 is characterized in that described high-precision A converter is built-in difference channel and programmable gain amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820145337U CN201392388Y (en) | 2008-08-27 | 2008-08-27 | Single body voltage on-line monitoring device for accumulator battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820145337U CN201392388Y (en) | 2008-08-27 | 2008-08-27 | Single body voltage on-line monitoring device for accumulator battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201392388Y true CN201392388Y (en) | 2010-01-27 |
Family
ID=41599209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820145337U Expired - Fee Related CN201392388Y (en) | 2008-08-27 | 2008-08-27 | Single body voltage on-line monitoring device for accumulator battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201392388Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540078A (en) * | 2010-12-17 | 2012-07-04 | 沈阳新邮通信设备有限公司 | Battery charging test device |
| CN103699049A (en) * | 2013-12-16 | 2014-04-02 | 上海市政工程设计研究总院（集团）有限公司 | PLC (Programmable Logic Controller) DI (Digital Input) point extension module and method |
| CN102540078B (en) * | 2010-12-17 | 2016-11-30 | 沈阳新邮通信设备有限公司 | Battery charging test device |
-
2008
- 2008-08-27 CN CN200820145337U patent/CN201392388Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540078A (en) * | 2010-12-17 | 2012-07-04 | 沈阳新邮通信设备有限公司 | Battery charging test device |
| CN102540078B (en) * | 2010-12-17 | 2016-11-30 | 沈阳新邮通信设备有限公司 | Battery charging test device |
| CN103699049A (en) * | 2013-12-16 | 2014-04-02 | 上海市政工程设计研究总院（集团）有限公司 | PLC (Programmable Logic Controller) DI (Digital Input) point extension module and method |
| CN103699049B (en) * | 2013-12-16 | 2019-04-09 | 上海市政工程设计研究总院（集团）有限公司 | PLC On-off signal point expansion module and extended method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20100827 |