CN209642381U - A kind of 12V battery charger intelligent power saving control circuit - Google Patents
A kind of 12V battery charger intelligent power saving control circuit Download PDFInfo
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- CN209642381U CN209642381U CN201920470001.0U CN201920470001U CN209642381U CN 209642381 U CN209642381 U CN 209642381U CN 201920470001 U CN201920470001 U CN 201920470001U CN 209642381 U CN209642381 U CN 209642381U
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Abstract
A kind of 12V battery charger intelligent power saving control circuit, it is characterised by comprising: L1 input terminal and N1 input terminal for connecting 220V alternating current, further include the J1-1 normally opened contact on DC1 14V voltage output end, AN1 button switch, T1 power transformer, D1-D4 diode, C1 capacitor, R1 resistance, Q1 triode, D5 diode, VT1 one-way SCR, R2 resistance, C2 capacitor, R3 resistance, VD1 voltage-stabiliser tube, J1 relay and J1 relay；The utility model normally to charge the battery, while can may be implemented to automatically power off after battery is fully charged, so that 12V battery be protected not to be overcharged and using electricity wisely purpose by the circuit structure of change conventional charger.
Description
Technical field
The utility model relates to charger technologies field, specially a kind of 12V battery charger intelligent power saving control
Circuit processed.
Background technique
Electric vehicle, i.e. electric drive vehicle also known as electricity are driven.Electric vehicle is divided into alternating current electric vehicle and DC electric car.Usually
The electric vehicle said is, by components such as controller, motors, to convert electrical energy into mechanical energy movement using battery as energy source,
To control the vehicle that size of current changes speed.Electric car charger is that one configured exclusively for the storage battery of electric bicycle fills
Electric equipment！The classification of charger: it is distinguished with and without power frequency (50 hertz) transformer, two major classes can be divided into.Shipping three-wheel charger
The charger with Industrial Frequency Transformer is generally used, volume is big, weight is big, power-consuming, but reliable, cheaply；Electric bicycle and electricity
It rubs then using so-called switch power supply type charger, power saving is high-efficient, but perishable.
The correct operation of switch power supply type charger is: when charging, first inserting battery, afterwards plus alternating current；After abundance, it is initially switched off city
Electricity, after pull out battery plug.If first pull out battery plug, especially charging current big (red light) in charging, it is very easy to damage
Bad charger.
Common switch power supply type charger divides semibridge system and single sharp formula two major classes again, single sharp class be divided into again positive activation type with instead
Swash two class of formula.Semibridge system is at high cost, and performance is good, is usually used in the charger with negative pulse；Single sharp formula is at low cost, occupation rate of market
It is high.
And present many chargers the problem of often overcharging, it will result in the waste of electric current in this way.
Utility model content
The utility model provides a kind of 12V battery charger intelligent power saving control to solve the deficiencies in the prior art
Circuit processed has automatic circuit break function.
A kind of 12V battery charger intelligent power saving control circuit, comprising: for connect 220V alternating current L1 input terminal and
N1 input terminal, further include DC1 14V voltage output end, AN1 button switch, T1 power transformer, D1-D4 diode, C1 capacitor,
R1 resistance, Q1 triode, D5 diode, VT1 one-way SCR, R2 resistance, C2 capacitor, R3 resistance, VD1 voltage-stabiliser tube, J1 relay
J1-1 normally opened contact on device and J1 relay；
Wherein, the primary coil both ends of the T1 power transformer are separately connected L1 input terminal and N1 input terminal, the J1
J1-1 normally opened contact on relay is serially connected between L1 input terminal and the primary coil of T1 power transformer, the AN1 button
Switch in parallel is connect respectively in J1-1 normally opened contact both ends, the secondary coil of the T1 power transformer the 1st of D1-D4 diode
End and the 3rd end, the 2nd end of the D1-D4 diode are grounded, C1 capacitor one end, R1 resistance one end, J1 relay one end with
And D5 diode cathode is connected on the 4th end of D1-D4 diode, the R1 resistance is another be connected to Q1 transistor base and
On 1st input pin of VT1 one-way SCR, Q1 transistor emitter ground connection, the Q1 transistor collector be connected to J1 after
The electric appliance other end；3rd output pin of the VT1 one-way SCR is grounded, and the 2nd output pin of VT1 one-way SCR is connected to C2 electricity
Hold one end and R2 resistance one end, the C2 capacitor other end ground connection, the R2 resistance is another to be connected to R3 resistance one end and VD1 is steady
Pressure pipe anode, R3 resistance other end ground connection, the VD1 regulator tube negative are connected to diode D5 cathode and DC1 14V voltage output
The anode at end, the cathode ground connection of the DC1 14V voltage output end.
The cathode of the D5 diode is connected to the positive terminal of DC1 14V voltage output end.
The D1-D4 diode is serially connected by four diodes, constitutes bridge rectifier.
The C1 capacitor is filter capacitor.
Working principle:
The anode and cathode of the output end DC1 of 12V battery charger intelligent power saving control circuit are connected to 12V first
On the anode and negative pole end of battery, after connecting, then the end L1 and the end N1 is connected on alternating current 220V power supply, clicks AN1
Button switch, 220V voltage is powered through AN1 button switch to T1 power transformer primary coil, in T1 power transformer primary line
Enclose it is electric after, the alternating voltage of 15V or so will be generated after D1-D4 rectifier diode bridge rectifier through C1 capacitor in secondary coil
Direct current 15V voltage is exported after filtering and divides two-way, is connected to the base stage of Q1 triode through R1 resistance all the way, is made Q1 triode ON,
Make J1 relay work once electrified, J1-1 normally opened contact is attracted, and T1 power transformer primary coil is made to remain powered on state；T1 transformation
The about 14V voltage that the direct current 15V voltage another way that device secondary coil generates exports after D5 diode current flow is filled to 12V battery
Electricity, at this time in the voltage of D5 diode cathode be approximately equal to 12V battery voltage, battery in underfill electricity, D5 diode
Cathode voltage about 12V or so, at this time because the soft breakdown voltage of VD1 voltage-stabiliser tube is 14V, VD1 voltage-stabiliser tube is not by soft breakdown, VD1
Voltage-stabiliser tube anode without output voltage, make silicon-controlled 2 foot of VT1 individual event without set out voltage and by, VT1 individual event is silicon-controlled to be not turned on,
J1 relay is set to keep working condition, J1-1 normally opened contact keeps attracting state, makes the end DC1 that output voltage be kept to make 12V electric power storage
Pond keeps charged state；
When after a certain time, in the state of fully charged, 12V battery voltage after fully charged will rise 12V battery
14.5V or so is arrived, 14.5V voltage is more than the soft breakdown voltage status of VD1 voltage-stabiliser tube at this time, makes VD1 voltage-stabiliser tube by soft breakdown, In
VD1 voltage-stabiliser tube positive terminal exports high level after R3 resistance and the decompression of R2 resistance to C2 capacitor charging, when C2 capacitor is fully charged
Afterwards, after so that 2 foot of VT1 one-way SCR is obtained the enough voltage that sets out, VT1 one-way SCR is connected, VT1 one-way SCR 3
Foot output low level makes Q1 transistor base voltage low level, the cut-off of Q1 triode, and J1 relay electric-loss disconnects, and J1-1 is normally opened
Contact disconnects, and T1 power transformer primary coil power loss, secondary coil Non voltage output is full of to reach in 12V battery
It is automatically powered off after electricity, so that 12V battery be protected not to be overcharged and using electricity wisely purpose.
Compared with prior art, the utility model has the beneficial effects that the utility model is by changing conventional charger
Circuit structure normally to charge the battery, while can may be implemented to automatically power off after battery is fully charged, to protect
12V battery is not overcharged and using electricity wisely purpose.
Detailed description of the invention
Fig. 1 is the utility model electrical block diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the utility model, it should be noted that the side of the instructions such as term "vertical", "upper", "lower", "horizontal"
Position or positional relationship be orientation based on the figure or positional relationship, be merely for convenience of description this it is practical and simplification retouch
State, rather than indicate or imply that signified device or element must have a particular orientation, with specific orientation construction and
Operation, therefore should not be understood as limiting the present invention.In addition, " first ", " second ", " third ", " the 4th " are only used for
Purpose is described, and should not be understood as indicating or implying relative importance.
In the description of the utility model, it is also necessary to which explanation " is set unless otherwise specific regulation and limitation, term
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or be integrally connected, it can be mechanical connection, be also possible to be electrically connected, can be and be directly connected to, be also possible to through intermediate matchmaker
It is situated between and is connected, can be the connection inside two elements.It for the ordinary skill in the art, can be as the case may be
Understand the concrete meaning of above-mentioned term in the present invention.
Please refer to Fig. 1:
A kind of 12V battery charger intelligent power saving control circuit, comprising: for connect 220V alternating current L1 input terminal and
N1 input terminal, further include DC1 14V voltage output end, AN1 button switch, T1 power transformer, D1-D4 diode, C1 capacitor,
R1 resistance, Q1 triode, D5 diode, VT1 one-way SCR, R2 resistance, C2 capacitor, R3 resistance, VD1 voltage-stabiliser tube, J1 relay
J1-1 normally opened contact on device and J1 relay；
Wherein, the primary coil both ends of the T1 power transformer are separately connected L1 input terminal and N1 input terminal, the J1
J1-1 normally opened contact on relay is serially connected between L1 input terminal and the primary coil of T1 power transformer, the AN1 button
Switch in parallel is connect respectively in J1-1 normally opened contact both ends, the secondary coil of the T1 power transformer the 1st of D1-D4 diode
End and the 3rd end, the 2nd end of the D1-D4 diode are grounded, C1 capacitor one end, R1 resistance one end, J1 relay one end with
And D5 diode cathode is connected on the 4th end of D1-D4 diode, the R1 resistance is another be connected to Q1 transistor base and
On 1st input pin of VT1 one-way SCR, Q1 transistor emitter ground connection, the Q1 transistor collector be connected to J1 after
The electric appliance other end；3rd output pin of the VT1 one-way SCR is grounded, and the 2nd output pin of VT1 one-way SCR is connected to C2 electricity
Hold one end and R2 resistance one end, the C2 capacitor other end ground connection, the R2 resistance is another to be connected to R3 resistance one end and VD1 is steady
Pressure pipe anode, R3 resistance other end ground connection, the VD1 regulator tube negative are connected to diode D5 cathode and DC1 14V voltage output
The anode at end, the cathode ground connection of the DC1 14V voltage output end.
The cathode of the D5 diode is connected to the positive terminal of DC1 14V voltage output end.
The D1-D4 diode is serially connected by four diodes, constitutes bridge rectifier.
The C1 capacitor is filter capacitor.
Working principle:
The anode and cathode of the output end DC1 of 12V battery charger intelligent power saving control circuit are connected to 12V first
On the anode and negative pole end of battery, after connecting, then the end L1 and the end N1 is connected on alternating current 220V power supply, clicks AN1
Button switch, 220V voltage is powered through AN1 button switch to T1 power transformer primary coil, in T1 power transformer primary line
Enclose it is electric after, the alternating voltage of 15V or so will be generated after D1-D4 rectifier diode bridge rectifier through C1 capacitor in secondary coil
Direct current 15V voltage is exported after filtering and divides two-way, is connected to the base stage of Q1 triode through R1 resistance all the way, is made Q1 triode ON,
Make J1 relay work once electrified, J1-1 normally opened contact is attracted, and T1 power transformer primary coil is made to remain powered on state；T1 transformation
The about 14V voltage that the direct current 15V voltage another way that device secondary coil generates exports after D5 diode current flow is filled to 12V battery
Electricity, at this time in the voltage of D5 diode cathode be approximately equal to 12V battery voltage, battery in underfill electricity, D5 diode
Cathode voltage about 12V or so, at this time because the soft breakdown voltage of VD1 voltage-stabiliser tube is 14V, VD1 voltage-stabiliser tube is not by soft breakdown, VD1
Voltage-stabiliser tube anode without output voltage, make silicon-controlled 2 foot of VT1 individual event without set out voltage and by, VT1 individual event is silicon-controlled to be not turned on,
J1 relay is set to keep working condition, J1-1 normally opened contact keeps attracting state, makes the end DC1 that output voltage be kept to make 12V electric power storage
Pond keeps charged state；
When after a certain time, in the state of fully charged, 12V battery voltage after fully charged will rise 12V battery
14.5V or so is arrived, 14.5V voltage is more than the soft breakdown voltage status of VD1 voltage-stabiliser tube at this time, makes VD1 voltage-stabiliser tube by soft breakdown, In
VD1 voltage-stabiliser tube positive terminal exports high level after R3 resistance and the decompression of R2 resistance to C2 capacitor charging, when C2 capacitor is fully charged
Afterwards, after so that 2 foot of VT1 one-way SCR is obtained the enough voltage that sets out, VT1 one-way SCR is connected, VT1 one-way SCR 3
Foot output low level makes Q1 transistor base voltage low level, the cut-off of Q1 triode, and J1 relay electric-loss disconnects, and J1-1 is normally opened
Contact disconnects, and T1 power transformer primary coil power loss, secondary coil Non voltage output is full of to reach in 12V battery
It is automatically powered off after electricity, so that 12V battery be protected not to be overcharged and using electricity wisely purpose.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (4)
1. a kind of 12V battery charger intelligent power saving control circuit, characterized by comprising: for connecting the L1 of 220V alternating current
Input terminal and N1 input terminal further include DC1 14V voltage output end, AN1 button switch, T1 power transformer, bis- pole D1-D4
Pipe, C1 capacitor, R1 resistance, Q1 triode, D5 diode, VT1 one-way SCR, R2 resistance, C2 capacitor, R3 resistance, VD1 pressure stabilizing
J1-1 normally opened contact on pipe, J1 relay and J1 relay；
Wherein, the primary coil both ends of the T1 power transformer are separately connected L1 input terminal and N1 input terminal, the J1 relay
J1-1 normally opened contact on device is serially connected between L1 input terminal and the primary coil of T1 power transformer, the AN1 button switch
Be connected in parallel on J1-1 normally opened contact both ends, the secondary coil of the T1 power transformer connect respectively D1-D4 diode the 1st end and
3rd end, the 2nd end ground connection of the D1-D4 diode, C1 capacitor one end, R1 resistance one end, J1 relay one end and D5
Diode cathode is connected on the 4th end of D1-D4 diode, and the R1 resistance is another to be connected to Q1 transistor base and VT1 is mono-
To on the 1st silicon-controlled input pin, the Q1 transistor emitter ground connection, it is another that the Q1 transistor collector is connected to J1 relay
One end；3rd output pin of the VT1 one-way SCR is grounded, and the 2nd output pin of VT1 one-way SCR is connected to C2 capacitor one end
With R2 resistance one end, the C2 capacitor other end ground connection, the R2 resistance is another to be connected to R3 resistance one end and VD1 voltage-stabiliser tube just
Pole, R3 resistance other end ground connection, the VD1 regulator tube negative are being connected to diode D5 cathode and DC1 14V voltage output end just
Pole, the cathode ground connection of the DC1 14V voltage output end.
2. a kind of 12V battery charger intelligent power saving control circuit according to claim 1, it is characterised in that: described
The cathode of D5 diode is connected to the positive terminal of DC1 14V voltage output end.
3. a kind of 12V battery charger intelligent power saving control circuit according to claim 1, it is characterised in that: described
D1-D4 diode is serially connected by four diodes, constitutes bridge rectifier.
4. a kind of 12V battery charger intelligent power saving control circuit according to claim 1, it is characterised in that: described
C1 capacitor is filter capacitor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920470001.0U CN209642381U (en) | 2019-04-09 | 2019-04-09 | A kind of 12V battery charger intelligent power saving control circuit |
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| CN201920470001.0U CN209642381U (en) | 2019-04-09 | 2019-04-09 | A kind of 12V battery charger intelligent power saving control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110011394A (en) * | 2019-04-09 | 2019-07-12 | 泰力（安徽）电器股份有限公司 | A kind of 12V battery charger intelligent power saving control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110011394A (en) * | 2019-04-09 | 2019-07-12 | 泰力（安徽）电器股份有限公司 | A kind of 12V battery charger intelligent power saving control circuit |
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