CN205265320U

CN205265320U - Battery charger of safe power saving

Info

Publication number: CN205265320U
Application number: CN201521046364.XU
Authority: CN
Inventors: 黄奋升
Original assignee: Shenzhen Fensheng Technology Co Ltd
Current assignee: Shenzhen Fensheng Technology Co Ltd
Priority date: 2015-12-17
Filing date: 2015-12-17
Publication date: 2016-05-25
Anticipated expiration: 2025-12-17

Abstract

The utility model discloses a battery charger of safe power saving, including resistance R2, electric capacity C5, battery E and diode D1, electric capacity C5 and 220V alternating current are connected to resistance R2's one end, and electric capacity C5's the other end and rectifier bridge T's port 1 are connected to resistance R2's the other end, rectifier bridge T's 2 connection relay J's of port contact J -1, relay J's contact J -1's other end connection potentiometre RP1's a stiff end, potentiometre RP2's a stiff end, relay J's contact J -2, battery E's positive pole and chip IC1's pin 1. The utility model discloses battery charger of safe power saving utilizes potentiometre and 555 time -recorders to constitute the battery power monitoring module, through relay control circuit's break -make, be full of back automatic disconnection charging loops at the battery, and the harm having avoided completely overcharging and caused the battery still has light indication's function simultaneously, has consequently that the function is various, an advantage of long service life and saving electric energy.

Description

A kind of safe and power saving battery charger

Technical field

The utility model relates to a kind of charger, specifically a kind of safe and power saving battery charger.

Background technology

From lead-acid accumulator invention, since 150 years, it occupies absolute advantage in chemical energy battery always. This is because of itCheap, use reliable, be suitable for heavy-current discharge, the advantage such as the temperature range that conforms is wide. Lead-acid accumulator is being handed overAll important roles of field such as logical, communication, military affairs, navigation, aviation, photovoltaic generation. Particularly non-maintaining sealed lead-acidThe research and development success of battery, makes the scope of lead-acid accumulator application more extensive. As everyone knows, follow the service life of batteryThe performance of its charger has direct relation, and the most function singleness of existing charger, easily causes and overcharge, and has a strong impact on and holdsIn the service life of battery, therefore need to be improved.

Utility model content

The purpose of this utility model is to provide a kind of safe and power saving battery charger, carries to solve in above-mentioned background technologyThe problem going out.

For achieving the above object, the utility model provides following technical scheme:

A safe and power saving battery charger, comprises resistance R 2, capacitor C 5, battery E and diode D1; DescribedOne end of resistance R 2 connects capacitor C 5 and 220V alternating current, the other end of the other end connection capacitor C 5 of resistance R 2 and wholeThe port one of stream bridge T, the port 2 of rectifier bridge T connects the contact J-1 of relay J, and the contact J-1's of relay J is anotherOne end connect a stiff end, the relay J of a stiff end, the potentiometer RP2 of potentiometer RP1 contact J-2, holdThe pin 1 of the positive pole of battery E and chip IC 1, the port 4 of rectifier bridge T connects capacitor C 1, capacitor C 4, potentiometer RP1Negative pole, the diode D2 of another stiff end, resistance R 3, battery E of another stiff end, potentiometer RP2The pin 1 of anode, relay J and chip IC 2, the sliding end of potentiometer RP1 connects the pin 6 of chip IC2, current potentialThe sliding end of device RP2 connects the pin 2 of chip IC2 and the other end of capacitor C 1, and the pin 2 of chip IC 1 connects electric capacityC2 ground connection, the other end of the contact J-2 of relay J connects the anode of diode D3, and the negative electrode of diode D3 connects electricityThe other end of resistance R3, the pin 8 of pin 3 contact resistance R1, capacitor C 3 and the chip IC 2 of chip IC 1, resistance R 1The other end connect the other end of capacitor C 2 and the pin 4 of chip IC 2, the other end ground connection of capacitor C 3, chip IC 2Pin 5 connects the other end of capacitor C 4, and the pin 3 of chip IC 2 connects the other end of relay J and the moon of diode D2The utmost point, described chip IC 1 is 7809 three terminal regulators, chip IC 2 is 555 timers.

As preferred version of the present utility model: described diode D3 is light emitting diode.

Compared with prior art, the beneficial effects of the utility model are: the battery charger profit that the utility model is safe and power savingWith potentiometer and 555 timers composition battery electric quantity monitoring module, by the break-make of control relay circuit, be full of at batteryThe rear charge circuit that automatically disconnects, the infringement that having avoided overcharges completely causes battery also has the merit of lamplight pointing simultaneouslyCan, therefore there is diverse in function, long service life and saving electric energy.

Brief description of the drawings

Fig. 1 is the circuit diagram of safe and power saving battery charger;

Detailed description of the invention

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out clearlyChu, intactly description, obviously, described embodiment is only the utility model part embodiment, instead of wholeEmbodiment. Based on the embodiment in the utility model, those of ordinary skill in the art are not making under creative work prerequisiteThe every other embodiment obtaining, belongs to the scope that the utility model is protected.

Refer to Fig. 1, in the utility model embodiment, a kind of safe and power saving battery charger, comprises resistance R 2, electricityHold C5, battery E and diode D1; One end of described resistance R 2 connects capacitor C 5 and 220V alternating current, resistance R 2The other end connect the other end of capacitor C 5 and the port one of rectifier bridge T, the port 2 of rectifier bridge T connects touching of relay JPoint J-1, the other end of the contact J-1 of relay J connects a stiff end, potentiometer RP2 one of potentiometer RP1The pin 1 of the contact J-2 of stiff end, relay J, the positive pole of battery E and chip IC 1, the port 4 of rectifier bridge TConnect capacitor C 1, capacitor C 4, another stiff end of potentiometer RP1, another stiff end of potentiometer RP2, resistanceThe pin 1 of the negative pole of R3, battery E, the anode of diode D2, relay J and chip IC 2, the cunning of potentiometer RP1Moved end connects the pin 6 of chip IC2, another of the pin 2 of the sliding end connection chip IC2 of potentiometer RP2 and capacitor C 1End, the pin 2 of chip IC 1 connects capacitor C 2 ground connection, and the other end of the contact J-2 of relay J connects diode D3Anode, the other end of the negative electrode contact resistance R3 of diode D3, the pin 3 contact resistance R1 of chip IC 1, electric capacityThe pin 8 of C3 and chip IC 2, the other end of resistance R 1 connects the other end of capacitor C 2 and the pin 4 of chip IC 2, electricityThe other end ground connection of holding C3, the pin 5 of chip IC 2 connects the other end of capacitor C 4, and pin 3 connections of chip IC 2 continueThe negative electrode of the other end of electrical equipment J and diode D2, described chip IC 1 is 7809 three terminal regulators, chip IC 2 is 555Timer.

Diode D3 is light emitting diode.

Operation principle of the present utility model is: when access 220V line voltage, 220V line voltage is through R2 and C5 step-downWith after rectifier bridge T rectification to charging control circuit power supply, charging control circuit is by sample circuit, bistable circuit and relay etc.Composition. Wherein sample circuit is divided into upper and lower bound sample circuit. The upper limit sample circuit being made up of potentiometer RP1 connects by core6 pin of sheet IC2 bistable circuit, the lower limit sample circuit being made up of potentiometer RP2 connects trigger end 2 pin of IC2. When holdingWhen cell voltage makes 2 pin current potentials lower than the set voltage of chip IC 2, there is set in chip IC 2, the height electricity of its 3 pin outputPut down and make J2 adhesive, contact J-1 connects, and battery E starts charging. When battery E voltage is charged to enough height, make IC26 pin current potentials during higher than 555 resetting voltage, 555 reset, the low level of its 3 pin output discharges relay J 2,Contact J-1 disconnects, and charge circuit stops charging, thereby effectively avoids battery E to be overcharged. Contact J-2 adhesive simultaneously,Light emitting diode D3 sends lamplight pointing, reminds user to be full of electricity.

Claims

1. a safe and power saving battery charger, comprises resistance R 2, capacitor C 5, battery E and diode D1; ItsBe characterised in that, one end of described resistance R 2 connects capacitor C 5 and 220V alternating current, and the other end of resistance R 2 connects capacitor C 5The other end and the port one of rectifier bridge T, the port 2 of rectifier bridge T connects the contact J-1 of relay J, relay JThe other end of contact J-1 connects a stiff end, the relay J of a stiff end, the potentiometer RP2 of potentiometer RP1The pin 1 of the positive pole of contact J-2, battery E and chip IC 1, the port 4 of rectifier bridge T connect capacitor C 1, capacitor C 4,The negative pole, two of another stiff end of potentiometer RP1, another stiff end of potentiometer RP2, resistance R 3, battery EThe pin 1 of anode, relay J and the chip IC 2 of utmost point pipe D2, the sliding end of potentiometer RP1 connects the pin of chip IC26, the sliding end of potentiometer RP2 connects the pin 2 of chip IC2 and the other end of capacitor C 1, and the pin 2 of chip IC 1 connectsConnect capacitor C 2 ground connection, the other end of the contact J-2 of relay J connects the anode of diode D3, the moon of diode D3The other end of utmost point contact resistance R3, the pin 8 of pin 3 contact resistance R1, capacitor C 3 and the chip IC 2 of chip IC 1,The other end of resistance R 1 connects the other end of capacitor C 2 and the pin 4 of chip IC 2, the other end ground connection of capacitor C 3, chipThe pin 5 of IC2 connects the other end of capacitor C 4, and the pin 3 of chip IC 2 connects the other end and the diode of relay JThe negative electrode of D2, described chip IC 1 is 7809 three terminal regulators, chip IC 2 is 555 timers.

2. a kind of safe and power saving battery charger according to claim 1, is characterized in that, described diode D3For light emitting diode.