CN201681147U - Storage battery testing circuit - Google Patents
Storage battery testing circuit Download PDFInfo
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- CN201681147U CN201681147U CN2010201736541U CN201020173654U CN201681147U CN 201681147 U CN201681147 U CN 201681147U CN 2010201736541 U CN2010201736541 U CN 2010201736541U CN 201020173654 U CN201020173654 U CN 201020173654U CN 201681147 U CN201681147 U CN 201681147U
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Abstract
The utility model relates to a storage battery testing circuit capable of testing various states accurately, comprising a shell and a circuit board in a box body, wherein the circuit board is provided with an anti-reverse-connection circuit, a discharge circuit, a voltage-stabilizing circuit, a calculating circuit, a control circuit and a display circuit. When in testing, a testing instrument is connected with a battery to be tested, firstly keys for selecting the capacitance and voltage of the battery are pressed, then a testing key is started, and various states of the storage battery can be tested accurately. Since the voltage and capacitance selecting circuit is arranged, the storage batteries with different capacitances can be selected, the discharge time and current are selected automatically, so the condition of the storage battery can be measured more accurately, and the accuracy is higher. Due to adoption of a contactless electronic switch, the service life of the testing instrument can be prolonged.
Description
Technical field
The utility model belongs to the electronic product testing apparatus, specifically a kind of accumulator testing circuit.
Background technology
The technician who is engaged in accumulator production industry knows, must know accumulator capacity and other states accurately if will prolong the life-span of accumulator.The accumulator testing circuit is mainly used in its state of test, and the testers of a large amount of circulations are with the discharge of a fixing pull-up resistor by in short-term on the market, go out the state of battery according to the voltage analysis of discharge front and back.Because its discharge time and discharge current are fixed, and the resultant error for the battery detecting of different capabilities is bigger, and since its discharge switch with manually or use relay, owing to the contact resistance existence is arranged, degree of accuracy and life-span all are subjected to a lot of influences.
The utility model content
The purpose of this utility model is to provide a kind of accumulator that can select different capabilities at above problem, selects discharge time and electric current automatically, accuracy of test height, the accumulator testing circuit that the life-span is long.
The utility model achieves the above object by following scheme, it comprises the reverse-connection preventing circuit that is provided with on the circuit board, mu balanced circuit, discharge circuit, counting circuit, control circuit and display circuit, anode is connected with the reverse-connection preventing circuit input end, one end of reverse-connection preventing circuit output terminal connects discharge circuit, and an end connects mu balanced circuit, and an end connects counting circuit, the output terminal of mu balanced circuit is connected with counting circuit, control circuit is connected with counting circuit, and discharge circuit is connected with counting circuit by resistance R 3, and counting circuit is connected with display circuit by resistance R 4-R19; Reverse-connection preventing circuit 1 is 2 diode connected in parallel D1 and D2, its positive termination battery folder just, negative terminal connects the resistance R of three-terminal voltage-stabilizing integrated package U2, discharge circuit and 4 pin of photoelectrical coupler successively; Mu balanced circuit 2 is negative terminal and resistance R that three-terminal voltage-stabilizing integrated package U2 input end 1 pin connects 4 pin and the diode D1 of photoelectrical coupler U3 jointly, three-terminal voltage-stabilizing integrated package U2 output terminal 3 pin connect capacitor C 2 and are just reaching microcontroller power supply input end VCC, the 2 pin ground connection of three-terminal voltage-stabilizing integrated package U2; Discharge circuit 3 is 1 pin of photoelectrical coupler U3 connects single-chip microcomputer U1 by resistance R 3 output terminals, 2 pin ground connection, 3 pin connect the grid of field effect transistor Q5 by resistance R 3, and 4 pin connect the negative terminal of diode D1, it is ground connection that the source electrode of field effect transistor Q5 connects power cathode, and drain electrode connects the negative terminal of D1 by resistance R; Counting circuit 4 is that the negative terminal of input end INO1 by resistance R 20 and D1 of single-chip microcomputer U1 links to each other, input end INO2 links to each other with button S1, input end INO3 links to each other with button S2, input end INO4 links to each other with button S3, output terminal OUT1 links to each other with resistance R 3, output terminal OUT2-OUT9 links to each other by the 1-8 pin of resistance R 8-R15 and display circuit successively, and by the BC utmost point of resistance R 4-R7 and triode Q1-Q4, the 9-12 pin through resistance R 16-R19 and display screen links to each other output terminal OUT10-OUT13 then successively; Control circuit 5 is that button S1 one termination power is negative, the INO input end of a termination single-chip microcomputer U1, and button S2 one termination power is negative, the INO input end of a termination single-chip microcomputer U1, button S3 one termination power is negative, the INO input end of a termination single-chip microcomputer U1; Display circuit 6 be display screen the 1-8 pin successively by resistance R 8-R15 and single-chip microcomputer U1 output terminal OUT2-OUT9 link to each other, by the CB utmost point of resistance R 16-R19 and triode Q1-Q4, output terminal OUT10-OUT13's 9-12 pin of display screen through resistance R 4-R7 and single-chip microcomputer U1 links to each other then successively.
Accumulator testing circuit of the present utility model owing to be provided with voltage and Capacity Selection circuit, can be selected the accumulator of different capabilities, selects discharge time and electric current automatically, situation that can more accurate measurement accumulator, and precision is higher.Adopted contactless electronic beam switch that the life-span of tester is prolonged.
Description of drawings
Fig. 1 is the circuit block diagram that circuit part constitutes in the utility model
Fig. 2 is the circuit structure diagram that circuit part constitutes in the utility model
Embodiment
The utility model will be further described below in conjunction with accompanying drawing:
As depicted in figs. 1 and 2, accumulator testing circuit of the present utility model, it comprises reverse-connection preventing circuit 1, mu balanced circuit 2, discharge circuit 3, counting circuit 4, control circuit 5 and display circuit 6, anode is connected with reverse-connection preventing circuit 1 input end, and an end of reverse-connection preventing circuit 1 output terminal connects discharge circuit 3, one end connects mu balanced circuit 2, one end connects counting circuit 4, and the output terminal of mu balanced circuit 2 is connected with counting circuit 4, and control circuit 5 is connected with counting circuit 4, discharge circuit 3 is connected with counting circuit 4 by resistance R 3, and counting circuit 4 is connected with display circuit 6 by R4-R19; Reverse-connection preventing circuit 1 is 2 diode connected in parallel D1 and D2, its positive termination battery folder just, negative terminal connects the resistance R of three-terminal voltage-stabilizing integrated package U2, filter capacitor C2, discharge circuit 3 and 4 pin of photoelectrical coupler U3 successively; Mu balanced circuit 2 is negative terminal and resistance R that three-terminal voltage-stabilizing integrated package U2 input end 1 pin connects 4 pin and the triode D1 of photoelectrical coupler U3 jointly, three-terminal voltage-stabilizing integrated package U2 output terminal 3 pin connect the power input VCC that capacitor C 2 is just reaching single-chip microcomputer U1, the 2 pin ground connection of three-terminal voltage-stabilizing integrated package U2; Discharge circuit 3 is 1 pin of photoelectrical coupler U3 connects single-chip microcomputer U1 by resistance R 3 output terminals, 2 pin ground connection, 3 pin connect the grid of field effect transistor Q5 by resistance R 3,4 pin connect the negative terminal of diode D1, it is ground connection that the source electrode of field effect transistor Q5 connects power cathode, and drain electrode connects the negative terminal of diode D1 by resistance R; Counting circuit 4 is that the negative terminal of input end INO1 by resistance R 20 and diode D1 of single-chip microcomputer U1 links to each other, input end INO2 links to each other with button S1, input end INO3 links to each other with button S2, input end INO4 links to each other with button 3, output terminal OUT1 links to each other with resistance R 3, output terminal OUT2-OUT9 links to each other by the 1-8 pin of resistance R 8-R15 and display circuit 6 successively, be that 1 pin that OUT2 passes through resistance R 8 and display circuit 6 links to each other, OUT3 links to each other by 2 pin of resistance R 9 and display circuit 6, OUT4 links to each other by 3 pin of resistance R 10 and display circuit 6, OUT5 links to each other by 4 pin of resistance R 11 and display circuit 6, OUT6 links to each other by 5 pin of resistance R 12 and display circuit 6, OUT7 links to each other by 6 pin of resistance R 13 and display circuit 6, and OUT8 links to each other by 7 pin of resistance R 14 and display circuit 6, and OUT9 links to each other by 8 pin of resistance R 15 and display circuit 6; Output terminal OUT10-OUT13 passes through the BC utmost point of resistance R 4-R7 and triode Q1-Q4 successively, 9-12 pin through resistance R 16-R19 and display screen links to each other then, be the BC utmost point of output terminal OUT10 by resistance R 4 and triode Q1,9 pin through resistance R 16 and display screen link to each other then, output terminal OUT11 is by the BC utmost point of resistance R 5 and triode Q2,10 pin through resistance R 17 and display screen link to each other then, output terminal OUT12 is by the BC utmost point of resistance R 6 and triode Q3,11 pin through resistance R 18 and display screen link to each other then, output terminal OUT13 is by the BC utmost point of resistance R 7 and triode Q4, and 12 pin through resistance R 19 and display screen link to each other then; Control circuit 5 is that button S1 one termination power is negative, a termination single-chip microcomputer INO input end, and button S2 one termination power is negative, the INO input end of a termination single-chip microcomputer U1, button S3 one termination power is negative, the INO input end of a termination single-chip microcomputer U1; Display circuit 6 is that the 1-8 pin of four LED digital display screens links to each other with the output terminal OUT2-OUT9 of single-chip microcomputer U1 by resistance R 8-R15 successively, 1 pin that is display screen links to each other with the output terminal OUT2 of single-chip microcomputer U1 by resistance R 8 successively, 2 pin of display screen link to each other with the output terminal OUT3 of single-chip microcomputer U1 by resistance R 9 successively, 3 pin of display screen link to each other with the output terminal OUT4 of single-chip microcomputer U1 by resistance R 10 successively, 4 pin of display screen link to each other with the output terminal OUT5 of single-chip microcomputer U1 by resistance R 11 successively, 5 pin of display screen link to each other with the output terminal OUT6 of single-chip microcomputer U1 by resistance R 12 successively, 6 pin of display screen link to each other with the output terminal OUT7 of single-chip microcomputer U1 by resistance R 13 successively, 7 pin of display screen link to each other with the output terminal OUT8 of single-chip microcomputer U1 by resistance R 14 successively, and 8 pin of display screen link to each other with the output terminal OUT9 of single-chip microcomputer U1 by resistance R 15 successively; The 9-12 pin of display screen passes through the CB utmost point of resistance R 16-R19 and triode Q1-Q4 successively, output terminal OUT10-OUT13 through resistance R 4-R7 and single-chip microcomputer links to each other then, it is the 9 pin CB utmost point by resistance R 16 and triode Q1 successively of display screen, output terminal OUT10 through resistance R 4 and single-chip microcomputer links to each other then, 10 pin of display screen pass through the CB utmost point of resistance R 17 and triode Q2 successively, output terminal OUT11 through resistance R 5 and single-chip microcomputer U1 links to each other then, 11 pin of display screen pass through the CB utmost point of resistance R 18 and triode Q3 successively, output terminal OUT12 through resistance R 6 and single-chip microcomputer U1 links to each other then, 12 pin of display screen pass through the CB utmost point of resistance R 19 and Q4 successively, output terminal OUT13 through resistance R 7 and single-chip microcomputer U1 links to each other then.
During use, battery folder just is connected with accumulator positive, battery folder is negative to be connected with accumulator is negative, is electric current through anti-reverse diode? three-terminal voltage-stabilizing integrated package U2 flows through, after capacitor C 2 filtering, meet microcontroller power supply input end VCC, start single-chip microcomputer U1 work, another road meets single-chip microcomputer U1 through resistance R 20 and detects input end, the shows signal of single-chip microcomputer U1 output is through resistance R 8-R15, resistance R 4-R7 is through the B of triode Q1-Q4, and what the C utmost point arrived four LED digital display screens at this moment display screen shows through resistance R 16-R19 again is cell voltage.
Press the Capacity Selection button during test earlier, whenever press once, capacity increases by 10 ampere-hours, and what display screen showed immediately also is the capacity of selected battery.Up to corresponding with the capacity of selected battery.Press the voltage selection key then, be initiated with 12 volts, whenever press then once and change once, what display screen showed immediately also is the voltage of selected battery, up to corresponding with the voltage of selected battery. press feeler switch at last, single-chip microcomputer U1 output terminal OUT1 output pulse train signal, (pulsewidth of this signal and time are through the voltage of single-chip microcomputer according to tested battery, draw after the calculation of capacity) this pulse by resistance R 3 with photoelectrical coupler U3 conducting, electric current is through optocoupler, and resistance R 2 is with field effect transistor BG5 conducting, and discharge current is through resistance R, the source electrode of field effect transistor Q5, ground drains.Pulse discharge later finishes.Display screen shows is voltage and battery rank after discharge finishes, and rank shows with digital 1-8, the two mutual Alternation Display of voltage and rank.
Claims (8)
1. accumulator testing circuit, it is characterized in that: comprise shell and be located at the interior circuit board of casing, be provided with reverse-connection preventing circuit on the circuit board, mu balanced circuit, discharge circuit, counting circuit, control circuit and display circuit, anode is connected with the reverse-connection preventing circuit input end, and an end of reverse-connection preventing circuit output terminal connects discharge circuit, one end connects mu balanced circuit, one end connects counting circuit, and the output terminal of mu balanced circuit is connected with counting circuit, and control circuit is connected with counting circuit, discharge circuit is by being connected with counting circuit by resistance [R3], and counting circuit is connected with display circuit by resistance [R4-R19].
2. accumulator testing circuit according to claim 1, it is characterized in that: described reverse-connection preventing circuit is 2 diode connected in parallel D1 and D2, its positive termination battery folder just, negative terminal connects three-terminal voltage-stabilizing integrated package U2 successively, 4 pin of the resistance R of discharge circuit and photoelectrical coupler U3.
3. accumulator testing circuit according to claim 1, it is characterized in that: described mu balanced circuit is negative terminal and the resistance R that three-terminal voltage-stabilizing integrated package U2 input end 1 pin connects 4 pin and the diode D1 of photoelectrical coupler U3 jointly, three-terminal voltage-stabilizing integrated package U2 output terminal 3 pin connect capacitor C 2 and are just reaching microcontroller power supply input end VCC, the 2 pin ground connection of three-terminal voltage-stabilizing integrated package U2.
4. accumulator testing circuit according to claim 1, it is characterized in that: described discharge circuit is 1 pin of photoelectrical coupler U3 connects single-chip microcomputer by resistance R 3 a output terminal, 2 pin ground connection, 3 pin connect the grid of field effect transistor Q5 by resistance R 3,4 pin connect the negative terminal of diode D1, it is ground connection that the source electrode of field effect transistor Q5 connects power cathode, and drain electrode connects the negative terminal of diode D1 by resistance R.
5. accumulator testing circuit according to claim 1, it is characterized in that: described counting circuit is that the negative terminal of input end IN01 by resistance R 20 and diode D1 of single-chip microcomputer U1 links to each other, input end IN02 links to each other with button S1, input end IN03 links to each other with button S2, input end IN04 links to each other with button S3, output terminal OUT1 links to each other with resistance R 3, output terminal OUT2-OUT9 links to each other by the 1-8 pin of resistance R 4-R19 and display circuit successively, by the BC utmost point of resistance R 4-R7 and triode Q1-Q4, the 9-12 pin through resistance R 16-R19 and display screen links to each other output terminal OUT10-OUT13 then successively.
6. accumulator testing circuit according to claim 1, it is characterized in that: described control circuit is that button S1 one termination power is negative, one termination single-chip microcomputer INO input end, button S2 one termination power is negative, one termination single-chip microcomputer INO input end, button S3 one termination power is negative, a termination single-chip microcomputer INO input end.
7. accumulator testing circuit according to claim 1, it is characterized in that: described display circuit is that the 1-8 pin of display screen links to each other with the output terminal OUT2-OUT9 of single-chip microcomputer by resistance R 8-R15 successively, by the CB utmost point of resistance R 16-R19 and triode Q1-Q4, output terminal OUT10-OUT13's 9-12 pin of display screen through resistance R 4-R7 and single-chip microcomputer links to each other then successively.
8. accumulator testing circuit according to claim 1, it is characterized in that: its mu balanced circuit is negative terminal and the resistance R that three-terminal voltage-stabilizing integrated package U2 input end 1 pin connects 4 pin and the diode D1 of photoelectrical coupler U3 jointly, three-terminal voltage-stabilizing integrated package U2 output terminal 3 pin connect capacitor C 2 and are just reaching microcontroller power supply input end VCC, the 2 pin ground connection of three-terminal voltage-stabilizing integrated package U2, discharge circuit is photoelectrical coupler U3 and 1 pin are connected single-chip microcomputer by resistance R 3 a output terminal, 2 pin ground connection, 3 pin connect the grid of field effect transistor Q5 by resistance R 3,4 pin connect the negative terminal of diode D1, it is ground connection that the source electrode of field effect transistor Q5 connects power cathode, the negative terminal counting circuit that drain electrode meets diode D1 by resistance R is that the negative terminal of input end IN01 by resistance R 20 and diode D1 of single-chip microcomputer U1 links to each other, input end IN02 links to each other with button S1, input end IN03 links to each other with button S2, input end IN04 links to each other with button S3, output terminal OUT1 links to each other with resistance R 3, output terminal OUT2-OUT9 links to each other by the 1-8 pin of resistance R 4-R19 and display circuit successively, output terminal OUT10-OUT13 passes through the BC utmost point of resistance R 4-R7 and triode Q1-Q4 successively, be that button S1 one termination power is negative through the 9-12 pin of resistance R 16-R19 and the display screen control circuit that links to each other then, one termination single-chip microcomputer INO input end, button S2 one termination power is negative, one termination single-chip microcomputer INO input end, button 3 one termination powers are negative, one termination single-chip microcomputer INO input end, the 1-8 pin of display circuit display screen links to each other with the output terminal OUT2-OUT9 of single-chip microcomputer by resistance R 8-R15 successively, by the CB utmost point of resistance R 16-R19 and triode Q1-Q4, output terminal OUT10-OUT13's 9-12 pin of display screen through resistance R 4-R7 and single-chip microcomputer links to each other then successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201736541U CN201681147U (en) | 2010-04-25 | 2010-04-25 | Storage battery testing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201736541U CN201681147U (en) | 2010-04-25 | 2010-04-25 | Storage battery testing circuit |
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| Publication Number | Publication Date |
|---|---|
| CN201681147U true CN201681147U (en) | 2010-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201736541U Expired - Fee Related CN201681147U (en) | 2010-04-25 | 2010-04-25 | Storage battery testing circuit |
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| CN (1) | CN201681147U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692603A (en) * | 2011-03-21 | 2012-09-26 | 海洋王照明科技股份有限公司 | Battery discharge test circuit |
| CN102721929A (en) * | 2012-05-29 | 2012-10-10 | 肇庆理士电源技术有限公司 | Battery discharge testing equipment and method |
| CN105372593A (en) * | 2014-08-15 | 2016-03-02 | 神讯电脑(昆山)有限公司 | Battery capacity detection device |
| CN107271919A (en) * | 2017-07-24 | 2017-10-20 | 姜舒宁 | Retaining capacity of storage battery quick determination method and device |
-
2010
- 2010-04-25 CN CN2010201736541U patent/CN201681147U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692603A (en) * | 2011-03-21 | 2012-09-26 | 海洋王照明科技股份有限公司 | Battery discharge test circuit |
| CN102692603B (en) * | 2011-03-21 | 2015-07-08 | 海洋王照明科技股份有限公司 | Battery discharge test circuit |
| CN102721929A (en) * | 2012-05-29 | 2012-10-10 | 肇庆理士电源技术有限公司 | Battery discharge testing equipment and method |
| CN105372593A (en) * | 2014-08-15 | 2016-03-02 | 神讯电脑(昆山)有限公司 | Battery capacity detection device |
| CN107271919A (en) * | 2017-07-24 | 2017-10-20 | 姜舒宁 | Retaining capacity of storage battery quick determination method and device |
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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: 20101222 Termination date: 20130425 |