CN204858536U - Electric motor car battery does not have pressure drop polarity protection device - Google Patents
Electric motor car battery does not have pressure drop polarity protection device Download PDFInfo
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- CN204858536U CN204858536U CN201520531293.6U CN201520531293U CN204858536U CN 204858536 U CN204858536 U CN 204858536U CN 201520531293 U CN201520531293 U CN 201520531293U CN 204858536 U CN204858536 U CN 204858536U
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- diode
- electric capacity
- relay
- integrated circuit
- pressure drop
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- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses an electric motor car battery does not have pressure drop polarity protection device, including power input terminal, power supply output terminal, resistance, electric capacity, diode, integrated circuit, emitting diode, buzzer and relay, the relay adopts voltage to be 12V's auxiliary relay, integrated circuit's model is LM7812. The utility model relates to a rationally, simple structure, it does not have any consumption when correctly connecting the battery, and when battery connection error, can automatic cutout power consumption circuit and can send acousto -optic warning, the action is reliable, the practicality is strong.
Description
Technical field
The utility model relates to a kind of polarity protection arrangement, is specifically related to a kind of battery of electric vehicle without pressure drop polarity protection arrangement.
Background technology
Have many appliance circuits in electric motor car, the polarity of storage battery connects absolute requirement, does not allow to connect instead.Traditional cathode voltage guard method utilizes diode to prevent the damage of circuit.In general, only have when employing correct polarity, a series diode could allow electric current to pass through.The shortcoming of this method is on the diode because the existence of voltage drop wastes power consumption.If input current is 1 ampere, circuit by the power consumption of consumption 0.7 watt, and adopts bridge rectifier by the power consumption of consumption 1.4 watts, affects the operating efficiency of storage battery.
Summary of the invention
The purpose of this utility model is exactly the defect existed for prior art, provides a kind of battery of electric vehicle without pressure drop polarity protection arrangement.
Its technical scheme is: battery of electric vehicle, without pressure drop polarity protection arrangement, comprises power input terminal, power output terminal, resistance, electric capacity, diode, integrated circuit, light-emitting diode, buzzer and relay, the negative pole of the first power input terminal and the first electric capacity, the negative pole of the second electric capacity, the ground end of integrated circuit, the positive pole of the first diode, one end of relay and the moved end of relay contact are connected, and the other end of relay is connected with the negative pole of the negative pole of the first diode and the second diode, the positive pole of the second diode and the positive pole of the first electric capacity, the output of integrated circuit, one end of buzzer and the positive pole of light-emitting diode are connected, the negative pole of light-emitting diode is connected with the other end of buzzer and the Chang Kaiduan of relay contact by resistance, the positive pole of the second electric capacity is connected with the negative pole of the input of integrated circuit and the 3rd diode, the normal-closed end of relay contact is connected with the first power output terminal, and positive pole and the second source lead-out terminal of second source input terminal and the 3rd diode are connected.
Wherein, described relay adopts voltage to be the auxiliary relay of 12V.The model of described integrated circuit is LM7812.The capacity of described first electric capacity and the second electric capacity is 100 μ F, and the withstand voltage of the first electric capacity is greater than 16V, and the withstand voltage of the second electric capacity is greater than 50V; The model of the described first to the 3rd diode is 1N4007; The resistance of described resistance is 4.7K Ω; Described light-emitting diode is seven color light-emitting diodes.
The utility model compared with prior art, has the following advantages: reasonable in design, structure is simple, its when exact connect ion storage battery without any power consumption, and when storage battery connection error, can cut-out electric line automatically and can sound and light alarm be sent, reliable in action, practical.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of a kind of embodiment of the utility model.
Embodiment
With reference to Fig. 1, a kind of battery of electric vehicle, without pressure drop polarity protection arrangement, comprises power input terminal M1-M2, power output terminal N1-N2, resistance R, electric capacity C1C2, diode D1-D3, integrated circuit (IC), light-emitting diode LD, buzzer L and relay J, the negative pole of the first power input terminal M1 and the first electric capacity C1, the negative pole of the second electric capacity C2, the ground end of integrated circuit (IC), the positive pole of the first diode D1, one end of relay J and the moved end of relay contact J-1 are connected, and the other end of relay J is connected with the negative pole of the negative pole of the first diode D1 and the second diode D2, the positive pole of the second diode D2 and the positive pole of the first electric capacity C1, the output of integrated circuit (IC), one end of buzzer L and the positive pole of light-emitting diode LD are connected, the negative pole of light-emitting diode LD is connected with the other end of buzzer L and the Chang Kaiduan of relay contact J-1 by resistance R, the positive pole of the second electric capacity C2 is connected with the negative pole of the input of integrated circuit (IC) and the 3rd diode D3, the normal-closed end of relay contact J-1 is connected with the first power output terminal N1, and positive pole and the second source lead-out terminal N2 of second source input terminal M2 and the 3rd diode D3 are connected.Described relay J adopts voltage to be the auxiliary relay of 12V.The model of described integrated circuit (IC) is LM7812.The capacity of described first electric capacity C1 and the second electric capacity C2 is 100 μ F, and the first the withstand voltage of electric capacity C1 is greater than 16V, and the second the withstand voltage of electric capacity C2 is greater than 50V; The model of the described first to the 3rd diode D1-D3 is 1N4007; The resistance of described resistance R is 4.7K Ω; Described light-emitting diode LD is seven color light-emitting diodes.
During use, the first power output terminal N1 in this device is connected the positive terminal of electric motor car way circuit, second source lead-out terminal N2 connects the negative pole end of electric motor car way circuit.The first power input terminal M1 in this device uses for being connected storage battery with second source input terminal M2.Normal use should connect the positive pole of storage battery by the first power input terminal M1, second source input terminal M2 connects the negative pole of storage battery, at this moment, found out by accompanying drawing 1, under the effect of the second diode D2 and the 3rd diode D3, integrated circuit (IC), the first electric capacity C1, the second electric capacity C2 and relay J all do not work, and relay contact J-1 is static; The positive pole of storage battery connects the first power output terminal N1 by the first power input terminal M1, relay contact J-1 normal-closed end, second source input terminal M2 connects second source lead-out terminal N2, electric motor car way circuit power supply wiring correctly normally works, active element in this device circuit does not all work, and storage battery is without pressure drop loss.The misconnection polarity chron when connecting storage battery, namely the first power input terminal M1 connects the negative pole of storage battery and second source input terminal M2 when being connected to the positive pole of storage battery, 3rd diode D3 conducting, integrated circuit (IC) obtains electric work, second diode D2 conducting immediately, relay J work, relay contact J-1 overturns, cut off the output of the first power output terminal N1, light-emitting diode LD and buzzer L sends sound and light alarm simultaneously.The effect of integrated circuit (IC) is that the storage battery making this device be applicable to 12-48V voltage connects.
The utility model is reasonable in design, structure is simple, its when exact connect ion storage battery without any power consumption, and when storage battery connection error, can cut-out electric line automatically and sound and light alarm can be sent, reliable in action, practical.
Claims (4)
1. battery of electric vehicle is without pressure drop polarity protection arrangement, comprises power input terminal, power output terminal, resistance, electric capacity, diode, integrated circuit, light-emitting diode, buzzer and relay, is characterized in that: the negative pole of the first power input terminal and the first electric capacity, the negative pole of the second electric capacity, the ground end of integrated circuit, the positive pole of the first diode, one end of relay and the moved end of relay contact are connected, and the other end of relay is connected with the negative pole of the negative pole of the first diode and the second diode, the positive pole of the second diode and the positive pole of the first electric capacity, the output of integrated circuit, one end of buzzer and the positive pole of light-emitting diode are connected, the negative pole of light-emitting diode is connected with the other end of buzzer and the Chang Kaiduan of relay contact by resistance, the positive pole of the second electric capacity is connected with the negative pole of the input of integrated circuit and the 3rd diode, the normal-closed end of relay contact is connected with the first power output terminal, and positive pole and the second source lead-out terminal of second source input terminal and the 3rd diode are connected.
2. battery of electric vehicle according to claim 1 is without pressure drop polarity protection arrangement, it is characterized in that: described relay adopts voltage to be the auxiliary relay of 12V.
3. battery of electric vehicle according to claim 1 is without pressure drop polarity protection arrangement, it is characterized in that: the model of described integrated circuit is LM7812.
4. battery of electric vehicle according to claim 1 is without pressure drop polarity protection arrangement, it is characterized in that: the capacity of described first electric capacity and the second electric capacity is 100 μ F, and the withstand voltage of the first electric capacity is greater than 16V, and the withstand voltage of the second electric capacity is greater than 50V; The model of the described first to the 3rd diode is 1N4007; The resistance of described resistance is 4.7K Ω; Described light-emitting diode is seven color light-emitting diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520531293.6U CN204858536U (en) | 2015-07-22 | 2015-07-22 | Electric motor car battery does not have pressure drop polarity protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520531293.6U CN204858536U (en) | 2015-07-22 | 2015-07-22 | Electric motor car battery does not have pressure drop polarity protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204858536U true CN204858536U (en) | 2015-12-09 |
Family
ID=54749055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520531293.6U Expired - Fee Related CN204858536U (en) | 2015-07-22 | 2015-07-22 | Electric motor car battery does not have pressure drop polarity protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204858536U (en) |
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2015
- 2015-07-22 CN CN201520531293.6U patent/CN204858536U/en not_active Expired - Fee Related
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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: 20151209 Termination date: 20210722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |