CN202856325U - Electrocar rechargeable battery reverse connection protection circuit - Google Patents
Electrocar rechargeable battery reverse connection protection circuit Download PDFInfo
- Publication number
- CN202856325U CN202856325U CN 201220286902 CN201220286902U CN202856325U CN 202856325 U CN202856325 U CN 202856325U CN 201220286902 CN201220286902 CN 201220286902 CN 201220286902 U CN201220286902 U CN 201220286902U CN 202856325 U CN202856325 U CN 202856325U
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- resistance
- electrocar
- pnp triode
- rechargeable battery
- pmos field
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
An electrocar rechargeable battery reverse connection protection circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a PMOS field-effect tube, a PNP triode and a reverse connection indicator light. The electrocar rechargeable battery reverse connection protection circuit provided by the utility model is formed through the PMOS field-effect tube, the PNP triode and the reverse connection indicator light. When an electrocar charger charges electrocar rechargeable batteries with correct polarity, the protective PMOS field-effect tube and the PNP triode will be connected and the reverse connection indicator light is off; and once the power of the protected rechargeable batteries is connected inversely, the protective PMOS field-effect tube and the PNP triode will be disconnected, and the reverse connection indicator light is on. Therefore, the reverse charging of the electrocar rechargeable batteries is prevented from damaging the electrocar rechargeable batteries and the electrocar charger so as to protect the electrocar rechargeable batteries and the electrocar charger.
Description
Technical field
The utility model relates to the battery protection equipment and technology, particularly relates to a kind of electric motor car rechargeable battery reverse-connection protection circuit.
Background technology
1990 so far: day by day the reducing of petroleum resources, atmospheric environment seriously polluted, the electric motor car that allows people again pay close attention to.Advocated before nineteen ninety and use electric motor car main still take among the people as main.Learned society among the people tissue such as foundation in 1969: world's electric motor car association (World Electric Vehicle Association).World electric motor car association holds professional electric motor car academic conference and exhibition Electric Vehicle Symposium and Exposition (EVS) at world's country variant and area per a year and a half.Nineteen ninety for the beginning each main automobile production producer begin to pay close attention to the future development of electric motor car and begin the infusion of financial resources and technology in electric automobiles.On the auto show of the Los Angeles in January nineteen ninety, the president of General Motors is to global promotion Impact pure electric sedan.Ford Motors in 1992 use the Ecostar of calcium sulphur battery, Toyota Motors in 1996 use the RAV4LEV of Ni-MH battery, the Clio of French Reynolds automobile in 1996, the Prius hybrid power car of Toyota in 1997 rolls off the production line, Nissan Motor in 1997 is first electric motor car Prairie Joy EV that uses lithium ion battery in the world, Honda Motor's issue in 1999, sells hybrid vehicle.
Rechargeable battery is one of most important parts of electric motor car, and rechargeable battery is used to provide power in electric motor car.After the rechargeable battery reversal connection, all can bring serious consequence.Existing charging reversal connection circuit generally adopts fuse that rechargeable battery is protected.
The problem that prior art exists is: adopts fuse to carry out disposable protection, although the protection effect is better, after the fuse blows, needs the artificial fuse that more renews, and very inconvenient.
Therefore, for problems of the prior art, needing badly provides a kind of technology of electric motor car rechargeable battery reverse-connection protection circuit effective, easy to use of protecting particularly important.
Summary of the invention
The purpose of this utility model is to avoid weak point of the prior art and the technology of protection electric motor car rechargeable battery reverse-connection protection circuit effective, easy to use is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of electric motor car rechargeable battery reverse-connection protection circuit is provided; comprise resistance R 1; resistance R 2; resistance R 3; resistance R 4; resistance R 5; resistance R 6; resistance R 7; resistance R 8; the PMOS field effect transistor; PNP triode and reversal connection indicator light D1; described resistance R 1 one ends; the E utmost point of PNP triode is connected with described output voltage terminal; described resistance R 1 other end and described resistance R 6 one ends; the described PNP triode B utmost point; described resistance R 5 one ends connect; resistance R 6 other end ground connection; resistance R 5 other ends and the described PMOS field effect transistor D utmost point; described reversal connection indicator light D1 anode; described resistance R 7 one ends connect ground connection; the C utmost point of described PNP triode is connected with resistance R 2 one ends; described resistance R 2 other ends; resistance R 3 one ends are connected with the G utmost point of described PMOS field effect transistor; described resistance R 3 other ends; resistance R 7 one ends; the S utmost point of described PMOS field effect transistor; resistance R 4 one ends connect; described resistance R 4 other end ground connection; the negative electrode of described reversal connection indicator light D1 is connected with resistance R 8 one ends, resistance R 8 other end ground connection.
Wherein, described resistance R 1 is 103 Europe, and resistance R 2 is 333 Europe, and resistance R 3 is 103 Europe, and resistance R 4 is 0.1 Europe, and resistance R 5 is 333 Europe, and resistance R 6 is 155 Europe, and resistance R 7 is 474 Europe, and resistance R 8 is 303 Europe.
Wherein, the model of described PMOS field effect transistor is the PMOS field effect transistor of CS12N60.
Wherein, the model of described PNP triode is the PNP triode of 2SC1015.
The beneficial effects of the utility model:
A kind of electric motor car rechargeable battery reverse-connection protection circuit; comprise resistance R 1; resistance R 2; resistance R 3; resistance R 4; resistance R 5; resistance R 6; resistance R 7; resistance R 8; the PMOS field effect transistor; PNP triode and reversal connection indicator light D1; described resistance R 1 one ends; the E utmost point of PNP triode is connected with described output voltage terminal; described resistance R 1 other end and described resistance R 6 one ends; the described PNP triode B utmost point; described resistance R 5 one ends connect; resistance R 6 other end ground connection; resistance R 5 other ends and the described PMOS field effect transistor D utmost point; described reversal connection indicator light D1 anode; described resistance R 7 one ends connect ground connection; the C utmost point of described PNP triode is connected with resistance R 2 one ends; described resistance R 2 other ends; resistance R 3 one ends are connected with the G utmost point of described PMOS field effect transistor; described resistance R 3 other ends; resistance R 7 one ends; the S utmost point of described PMOS field effect transistor; resistance R 4 one ends connect; described resistance R 4 other end ground connection; the negative electrode of described reversal connection indicator light D1 is connected with resistance R 8 one ends, resistance R 8 other end ground connection.
The electric motor car rechargeable battery reverse-connection protection circuit that the utility model provides, form by PMOS field effect transistor, PNP triode and reversal connection indicator light, when electric motor car rechargeable battery charging that electric car charger connects to correct polarity, protection can form path with PMOS field effect transistor, PNP triode, and the reversal connection indicator light does not work; In case the error-polarity connection of power supply of protected rechargeable battery; protection can form with PMOS field effect transistor, PNP triode opens circuit; the reversal connection indicator light is bright; prevent electric motor car rechargeable battery reverse charge and damage electric motor car rechargeable battery and electric car charger, thus protection electric motor car rechargeable battery and electric car charger.
Description of drawings
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in the accompanying drawing does not consist of any restriction of the present utility model.
Fig. 1 is the circuit diagram of a kind of electric motor car rechargeable battery reverse-connection protection circuit of the present utility model.
Embodiment
Below in conjunction with embodiment the utility model is elaborated.
Embodiment 1
A kind of electric motor car rechargeable battery reverse-connection protection circuit is provided; comprise resistance R 1; resistance R 2; resistance R 3; resistance R 4; resistance R 5; resistance R 6; resistance R 7; resistance R 8; the PMOS field effect transistor; PNP triode and reversal connection indicator light D1; described resistance R 1 one ends; the E utmost point of PNP triode is connected with described output voltage terminal; described resistance R 1 other end and described resistance R 6 one ends; the described PNP triode B utmost point; described resistance R 5 one ends connect; resistance R 6 other end ground connection; resistance R 5 other ends and the described PMOS field effect transistor D utmost point; described reversal connection indicator light D1 anode; described resistance R 7 one ends connect ground connection; the C utmost point of described PNP triode is connected with resistance R 2 one ends; described resistance R 2 other ends; resistance R 3 one ends are connected with the G utmost point of described PMOS field effect transistor; described resistance R 3 other ends; resistance R 7 one ends; the S utmost point of described PMOS field effect transistor; resistance R 4 one ends connect; described resistance R 4 other end ground connection; the negative electrode of described reversal connection indicator light D1 is connected with resistance R 8 one ends, resistance R 8 other end ground connection.
The electric motor car rechargeable battery reverse-connection protection circuit that the utility model provides, form by PMOS field effect transistor, PNP triode and reversal connection indicator light, when electric motor car rechargeable battery charging that electric car charger connects to correct polarity, protection can form path with PMOS field effect transistor, PNP triode, and the reversal connection indicator light does not work; In case the error-polarity connection of power supply of protected rechargeable battery; protection can form with PMOS field effect transistor, PNP triode opens circuit; the reversal connection indicator light is bright; prevent electric motor car rechargeable battery reverse charge and damage electric motor car rechargeable battery and electric car charger, thus protection electric motor car rechargeable battery and electric car charger.
7 one sections connections of described resistance R ground connection is battery ground.
Wherein, described resistance R 1 is 103 Europe, and resistance R 2 is 333 Europe, and resistance R 3 is 103 Europe, and resistance R 4 is 0.1 Europe, and resistance R 5 is 333 Europe, and resistance R 6 is 155 Europe, and resistance R 7 is 474 Europe, and resistance R 8 is 303 Europe.
Wherein, the model of described PMOS field effect transistor is the PMOS field effect transistor of CS12N60.
Wherein, the model of described PNP triode is the PNP triode of 2SC1015.
Should be noted that at last; above embodiment is only in order to the technical solution of the utility model to be described but not to the restriction of the utility model protection range; although with reference to preferred embodiment the utility model has been done detailed description; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from essence and the scope of technical solutions of the utility model.
Claims (4)
1. electric motor car rechargeable battery reverse-connection protection circuit; it is characterized in that: comprise resistance R 1; resistance R 2; resistance R 3; resistance R 4; resistance R 5; resistance R 6; resistance R 7; resistance R 8; the PMOS field effect transistor; PNP triode and reversal connection indicator light D1; described resistance R 1 one ends; the E utmost point of PNP triode is connected with described output voltage terminal; described resistance R 1 other end and described resistance R 6 one ends; the described PNP triode B utmost point; described resistance R 5 one ends connect; resistance R 6 other end ground connection; resistance R 5 other ends and the described PMOS field effect transistor D utmost point; described reversal connection indicator light D1 anode; described resistance R 7 one ends connect ground connection; the C utmost point of described PNP triode is connected with resistance R 2 one ends; described resistance R 2 other ends; resistance R 3 one ends are connected with the G utmost point of described PMOS field effect transistor; described resistance R 3 other ends; resistance R 7 one ends; the S utmost point of described PMOS field effect transistor; resistance R 4 one ends connect; described resistance R 4 other end ground connection; the negative electrode of described reversal connection indicator light D1 is connected with resistance R 8 one ends, resistance R 8 other end ground connection.
2. a kind of electric motor car rechargeable battery reverse-connection protection circuit according to claim 1; it is characterized in that: described resistance R 1 is 103 Europe; resistance R 2 is 333 Europe; resistance R 3 is 103 Europe; resistance R 4 is 0.1 Europe, and resistance R 5 is 333 Europe, and resistance R 6 is 155 Europe; resistance R 7 is 474 Europe, and resistance R 8 is 303 Europe.
3. a kind of electric motor car rechargeable battery reverse-connection protection circuit according to claim 1, it is characterized in that: the model of described PMOS field effect transistor is the PMOS field effect transistor of CS12N60.
4. a kind of electric motor car rechargeable battery reverse-connection protection circuit according to claim 1, it is characterized in that: the model of described PNP triode is the PNP triode of 2SC1015.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220286902 CN202856325U (en) | 2012-06-19 | 2012-06-19 | Electrocar rechargeable battery reverse connection protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220286902 CN202856325U (en) | 2012-06-19 | 2012-06-19 | Electrocar rechargeable battery reverse connection protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202856325U true CN202856325U (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220286902 Expired - Fee Related CN202856325U (en) | 2012-06-19 | 2012-06-19 | Electrocar rechargeable battery reverse connection protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202856325U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092259A (en) * | 2014-07-11 | 2014-10-08 | 常州华达科捷光电仪器有限公司 | Charging protection circuit used for rechargeable battery |
| US10148099B2 (en) | 2015-07-01 | 2018-12-04 | Carrier Corporation | System and method for monitoring and controlling parallel batteries |
| US10424948B2 (en) | 2015-07-01 | 2019-09-24 | Carrier Corporation | Receptacle for monitoring and controlling parallel batteries |
-
2012
- 2012-06-19 CN CN 201220286902 patent/CN202856325U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092259A (en) * | 2014-07-11 | 2014-10-08 | 常州华达科捷光电仪器有限公司 | Charging protection circuit used for rechargeable battery |
| CN104092259B (en) * | 2014-07-11 | 2016-06-22 | 常州华达科捷光电仪器有限公司 | A kind of charge protector for rechargeable battery |
| US10148099B2 (en) | 2015-07-01 | 2018-12-04 | Carrier Corporation | System and method for monitoring and controlling parallel batteries |
| US10424948B2 (en) | 2015-07-01 | 2019-09-24 | Carrier Corporation | Receptacle for monitoring and controlling parallel batteries |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20140619 |
|
| EXPY | Termination of patent right or utility model |