CN102593818A - Circuit for preventing battery from being reversely connected - Google Patents
Circuit for preventing battery from being reversely connected Download PDFInfo
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- CN102593818A CN102593818A CN2012100357344A CN201210035734A CN102593818A CN 102593818 A CN102593818 A CN 102593818A CN 2012100357344 A CN2012100357344 A CN 2012100357344A CN 201210035734 A CN201210035734 A CN 201210035734A CN 102593818 A CN102593818 A CN 102593818A
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- battery
- charger output
- sampling resistor
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Abstract
The invention relates to a circuit for preventing a battery from being reversely connected. The circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor and a one-way thyristor, wherein the first resistor, the second resistor, the third resistor and the fourth resistor are sequentially connected in series; the fifth resistor, the sixth resistor, the seventh resistor and the eighth resistor are sequentially connected in series; one end of the ninth resistor is connected with one end of the fourth resistor, and the other end of the ninth resistor is connected with one end of the eighth resistor; and one end of the one-way thyristor is connected with one end of the first resistor, and the other end of the one-way thyristor is connected with one end of the fifth resistor. By the one-way thyristor, an output end of the circuit can reliably realize a function of protecting the battery from being reversely connected, the cost performance and reliability of the circuit are improved, and electric shock and adhesion can be avoided.
Description
Technical field
The present invention be more particularly directed to circuit field, particularly a kind of battery reverse-connection preventing circuit.
Background technology
As shown in Figure 1, Fig. 1 is battery reverse-connection preventing circuit traditionally.To be that the common a kind of output of now a lot of charger suppliers is anti-pour in down a chimney and the circuit diagram of anti-battery reversal connection Fig. 1.Wherein, C1, C2 are the charger output filter capacitors, and R1, R2, R3, R4 are the output voltage sampling resistor of charger; R5, R6, R7, R8 are the detection resistance of battery terminal voltage; J1 is the relay that prevents the battery reversal connection, and R9 is a charger output current sampling resistor, and D1 is a power diode.R1, R2, R3, R4 are respectively applied for the output voltage control of self and show; R5, R6, R7, R8 all detect behind the cell voltage or battery does not connect relay J 1 adhesive that the control of anti-back prevents the battery reversal connection; At this moment charger just can charge the battery, otherwise can not start charger.Power diode D1 plays the effect that prevents that battery from pouring in down a chimney; Be that charger prevents that battery from giving charger output capacitance short circuit charging when being connected with battery; Be used for showing the output voltage of self simultaneously as sample circuit at its positive pole; If there is not this diode, what possibly adopt is cell voltage, but not the voltage of charger self.The shortcoming of this control mode is when in charging process, being with big failure of current direct current relay; Be very easy to produce arcing at relay contact; And make the relay contact adhesion and can't cut and cause short circuit, its consequence is that charger and electrokinetic cell are in pass-through state always, in case break down i.e. protection not charger; Also protected not electrokinetic cell, its consequence is very serious.
Summary of the invention
The objective of the invention is to, because charger and electrokinetic cell are in pass-through state in the conventional battery reverse-connection preventing circuit always, promptly protected not charger and electrokinetic cell in case break down, the present invention proposes a kind of battery reverse-connection preventing circuit that addresses the above problem.
For realizing the foregoing invention purpose; The present invention proposes a kind of battery reverse-connection preventing circuit; This circuit comprises that the first charger output voltage sampling resistor R1, the second charger output voltage sampling resistor R2, the 3rd charger output voltage sampling resistor R3, the 4th charger output voltage sampling resistor R4, the 5th battery terminal voltage detect resistance R 5, the 6th battery terminal voltage detects resistance R 6, the 7th battery terminal voltage detection resistance R 7, the 8th battery terminal voltage detection resistance R 8 and the 9th charger output current sampling resistor R9; The said first charger output voltage sampling resistor R1, the said second charger output voltage sampling resistor R2, said the 3rd charger output voltage sampling resistor R3 and said the 4th charger output voltage sampling resistor R4 are connected in series successively, and said the 5th battery terminal voltage detects resistance R 5, said the 6th battery terminal voltage detects resistance R 6, said the 7th battery terminal voltage detection resistance R 7 and said the 8th battery terminal voltage detection resistance R 8 and is connected in series successively; The end of said the 9th charger output current sampling resistor R9 links to each other with the end of said the 4th charger output voltage sampling resistor R4, and the other end of said the 9th charger output current sampling resistor R9 links to each other with the end that said the 8th battery terminal voltage detects resistance R 8; It is characterized in that,
Also comprise one-way SCR; One end of said one-way SCR links to each other with the end of the said first charger output voltage sampling resistor R1, and the other end of said one-way SCR links to each other with the end that said the 5th battery terminal voltage detects resistance R 5.
Said one-way SCR is an active power device one-way SCR.
Also comprise the first charger output filter capacitor C1 and the second charger output filter capacitor C2; Said first charger output filter capacitor C1 and the said second charger output filter capacitor C2 are connected in parallel, and the branch road that constitutes of connecting with the said first charger output voltage sampling resistor R1, the said second charger output voltage sampling resistor R2, said the 3rd charger output voltage sampling resistor R3 and said the 4th charger output voltage sampling resistor R4 is in parallel.
Also comprise the first charger output filter capacitor C1 and the second charger output filter capacitor C2; Said first charger output filter capacitor C1 and the said second charger output filter capacitor C2 are connected in parallel.
Also comprise the tenth resistance R 10 and battery; Said the tenth resistance R 10 is connected in parallel with said battery, and detects resistance R 5, the 6th battery terminal voltage with said the 5th battery terminal voltage and detect resistance R 6, the 7th battery terminal voltage and detect resistance R 7 and the 8th battery terminal voltage and detect circuit that resistance R 8 is in series and be in parallel and be connected.
The invention has the advantages that; Replaced output at a distance from straight diode by one-way SCR; Solved the function of output battery reverse connecting protection reliably, its letter price ratio and reliability all are improved, and the adhesion of can not getting an electric shock; Because one-way SCR is a noncontacting switch, just can not cause outlet terminal to burn the certain adverse situation.
Description of drawings
Fig. 1 is battery reverse-connection preventing circuit figure traditionally;
A kind of battery reverse-connection preventing circuit figure that Fig. 2 proposes for the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, technical scheme of the present invention is carried out further detailed explanation.
A kind of battery reverse-connection preventing circuit figure as shown in Figure 2, that Fig. 2 proposes for the present invention.The operation principle of circuit diagram is among Fig. 2: output has promptly prevented the anti-electric current of irritating of battery with the effect of one-way SCR; Solved the anti-reverse problem of battery again,, promptly presented characteristic after the conducting at a distance from straight diode because one-way SCR is an active device; Conducting reliably again after detecting cell voltage simultaneously; Play the function of battery reverse connecting protection, the output controllable silicon can reliably turn-off by automatic back bias voluntarily when the charger charging is accomplished, and charger and electrokinetic cell break off fully; Fail safe improves, through application reliability is very high in batches.Among the present invention, adopt a kind of one-way SCR to replace traditional direct current relay and put back as battery and connect controller.In the present embodiment, one-way SCR is elected active power device one-way SCR as.
The battery reverse-connection preventing circuit that the present invention proposes comprises that the first charger output filter capacitor C1 and the second charger output filter capacitor C2, the first charger output voltage sampling resistor R1, the second charger output voltage sampling resistor R2, the 3rd charger output voltage sampling resistor R3, the 4th charger output voltage sampling resistor R4, the 5th battery terminal voltage detect resistance R 5, the 6th battery terminal voltage detects resistance R 6, the 7th battery terminal voltage detection resistance R 7, the 8th battery terminal voltage detection resistance R 8, the 9th charger output current sampling resistor R9, the tenth resistance R 10 and battery; The said first charger output voltage sampling resistor R1, the said second charger output voltage sampling resistor R2, said the 3rd charger output voltage sampling resistor R3 and said the 4th charger output voltage sampling resistor R4 are connected in series successively, and said the 5th battery terminal voltage detects resistance R 5, said the 6th battery terminal voltage detects resistance R 6, said the 7th battery terminal voltage detection resistance R 7 and said the 8th battery terminal voltage detection resistance R 8 and is connected in series successively; The end of said the 9th charger output current sampling resistor R9 links to each other with the end of said the 4th charger output voltage sampling resistor R4, and the other end of said the 9th charger output current sampling resistor R9 links to each other with the end that said the 8th battery terminal voltage detects resistance R 8; Also include source power device individual event controllable silicon; Said active power device individual event silicon controlled one end links to each other with the end of the said first charger output voltage sampling resistor R1, and the said active power device individual event silicon controlled other end links to each other with the end that said the 5th battery terminal voltage detects resistance R 5.Said first charger output filter capacitor C1 and the said second charger output filter capacitor C2 are connected in parallel.Said the tenth resistance R 10 is connected in parallel with said battery, and detects resistance R 5, the 6th battery terminal voltage with said the 5th battery terminal voltage and detect resistance R 6, the 7th battery terminal voltage and detect resistance R 7 and the 8th battery terminal voltage and detect circuit that resistance R 8 is in series and be in parallel and be connected.
The battery reverse-connection preventing circuit that the present invention proposes detects behind the cell voltage or battery does not connect the conducting of anti-back control active power device individual event controllable silicon; At this moment charger just can charge the battery; Otherwise can not start charger; Active power device individual event controllable silicon plays the effect that prevents that battery from pouring in down a chimney, and is used for showing the output voltage of self simultaneously as sample circuit at its positive pole.This control mode advantage is because active power device individual event controllable silicon is an active device; Promptly presented characteristic after his conducting, both solved the charger output and prevented the anti-electric current of irritating of battery, solved the anti-reverse problem of battery again at a distance from the effect of straight diode at a distance from straight diode individual event conducting; Active power device individual event controllable silicon can reliably turn-off by automatic back bias voluntarily after charging was accomplished simultaneously; Charger and electrokinetic cell break off fully, and fail safe improves, and application reliability is very high in batches.
It should be noted last that above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although the present invention is specified with reference to embodiment; Those of ordinary skill in the art is to be understood that; Technical scheme of the present invention is made amendment or is equal to replacement, do not break away from the spirit and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. battery reverse-connection preventing circuit; This circuit comprises that the first charger output voltage sampling resistor (R1), the second charger output voltage sampling resistor (R2), the 3rd charger output voltage sampling resistor (R3), the 4th charger output voltage sampling resistor (R4), the 5th battery terminal voltage detect resistance (R5), the 6th battery terminal voltage detects resistance (R6), the 7th battery terminal voltage detection resistance (R7), the 8th battery terminal voltage detection resistance (R8) and the 9th charger output current sampling resistor (R9); The said first charger output voltage sampling resistor (R1), the said second charger output voltage sampling resistor (R2), said the 3rd charger output voltage sampling resistor (R3) and said the 4th charger output voltage sampling resistor (R4) are connected in series successively, and said the 5th battery terminal voltage detects resistance (R5), said the 6th battery terminal voltage detects resistance (R6), said the 7th battery terminal voltage detection resistance (R7) and said the 8th battery terminal voltage detection resistance (R8) and is connected in series successively; One end of said the 9th charger output current sampling resistor (R9) links to each other with an end of said the 4th charger output voltage sampling resistor (R4), and the other end of said the 9th charger output current sampling resistor (R9) links to each other with the end that said the 8th battery terminal voltage detects resistance (R8); It is characterized in that,
Also comprise one-way SCR; One end of said one-way SCR links to each other with an end of the said first charger output voltage sampling resistor (R1), and the other end of said one-way SCR links to each other with the end that said the 5th battery terminal voltage detects resistance (R5).
2. a kind of battery reverse-connection preventing circuit according to claim 1 is characterized in that, said one-way SCR is an active power device one-way SCR.
3. a kind of battery reverse-connection preventing circuit according to claim 1 and 2 is characterized in that, also comprises the first charger output filter capacitor (C1) and the second charger output filter capacitor (C2); Said first charger output filter capacitor (C1) and the said second charger output filter capacitor (C2) are connected in parallel, and the branch road that constitutes of connecting with the said first charger output voltage sampling resistor (R1), the said second charger output voltage sampling resistor (R2), said the 3rd charger output voltage sampling resistor (R3) and said the 4th charger output voltage sampling resistor (R4) is in parallel.
4. a kind of battery reverse-connection preventing circuit according to claim 1 and 2 is characterized in that, also comprises the tenth resistance (R10) and battery; Said the tenth resistance (R10) and said battery are connected in parallel, and detect resistance (R5), the 6th battery terminal voltage with said the 5th battery terminal voltage and detect resistance (R6), the 7th battery terminal voltage and detect resistance (R7) and be in parallel with circuit that the 8th battery terminal voltage detection resistance (R8) is in series and be connected.
5. a kind of battery reverse-connection preventing circuit according to claim 3 is characterized in that, also comprises the tenth resistance (R10) and battery; Said the tenth resistance (R10) and said battery are connected in parallel, and detect resistance (R5), the 6th battery terminal voltage with said the 5th battery terminal voltage and detect resistance (R6), the 7th battery terminal voltage and detect resistance (R7) and be in parallel with circuit that the 8th battery terminal voltage detection resistance (R8) is in series and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210035734.4A CN102593818B (en) | 2012-02-16 | 2012-02-16 | Circuit for preventing battery from being reversely connected |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210035734.4A CN102593818B (en) | 2012-02-16 | 2012-02-16 | Circuit for preventing battery from being reversely connected |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102593818A true CN102593818A (en) | 2012-07-18 |
| CN102593818B CN102593818B (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210035734.4A Expired - Fee Related CN102593818B (en) | 2012-02-16 | 2012-02-16 | Circuit for preventing battery from being reversely connected |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709415A (en) * | 2018-12-04 | 2019-05-03 | 国网江苏省电力有限公司电力科学研究院 | A kind of direct-current charging post cell anti-reverse connects simulating test device and method |
Citations (5)
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| CN2112220U (en) * | 1991-12-09 | 1992-08-05 | 肖相如 | Program-controlling pulse width amplitude scr accumulator charger |
| CN2636482Y (en) * | 2003-07-06 | 2004-08-25 | 陈枚林 | Thyristor self controlled battery charger |
| JP2004242441A (en) * | 2003-02-06 | 2004-08-26 | Iwatsu Electric Co Ltd | Charger for secondary battery |
| CN201349141Y (en) * | 2009-01-21 | 2009-11-18 | 葛淇聪 | Safe device for output of electric motor car charger |
| CN202435029U (en) * | 2012-02-16 | 2012-09-12 | 北京优科利尔能源设备有限公司 | Battery reverse connection prevention circuit |
-
2012
- 2012-02-16 CN CN201210035734.4A patent/CN102593818B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2112220U (en) * | 1991-12-09 | 1992-08-05 | 肖相如 | Program-controlling pulse width amplitude scr accumulator charger |
| JP2004242441A (en) * | 2003-02-06 | 2004-08-26 | Iwatsu Electric Co Ltd | Charger for secondary battery |
| CN2636482Y (en) * | 2003-07-06 | 2004-08-25 | 陈枚林 | Thyristor self controlled battery charger |
| CN201349141Y (en) * | 2009-01-21 | 2009-11-18 | 葛淇聪 | Safe device for output of electric motor car charger |
| CN202435029U (en) * | 2012-02-16 | 2012-09-12 | 北京优科利尔能源设备有限公司 | Battery reverse connection prevention circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709415A (en) * | 2018-12-04 | 2019-05-03 | 国网江苏省电力有限公司电力科学研究院 | A kind of direct-current charging post cell anti-reverse connects simulating test device and method |
| CN109709415B (en) * | 2018-12-04 | 2021-05-18 | 国网江苏省电力有限公司电力科学研究院 | Direct current charging pile battery reverse connection prevention simulation test device and method |
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| CN102593818B (en) | 2014-10-29 |
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