CN2139322Y - Fast charger - Google Patents

Abstract

The utility model is added with a voltage converting device, a discharge circuit, a timed unit and a time display unit on the basis of the existing battery charging to cause the effective discharge circuit to be formed in a discharge cycle to cause the effect of depolarization to be enhanced. The voltage converting device can be flexibly converted according to different charging objects; the timed unit and the time displayunit can be used for helping operators to control the charging process easily. The problems of large heating loss, poor effect on the discharge circuit and inconvenience for detecting charging degree in the existing chargers are solved.

Description

Fast charger

The utility model relates to a kind of novel charging device fast, can make the usefulness of the charging of multiple electric energy storage device.

Present most quick charge device all is the principle that adopts pulse current charge, discharge depolarization, to reach the purpose of big electric current quick charge.But the device with the pulse mode charging that just uses at present all exists incomplete place to some extent.In the discharge cycle behind charge cycle, do not form real effectively discharge loop, thereby make utmost point poor effect; The heating loss is big and can not detect degree that battery is recharged etc. easily during charging.

The purpose that this use is novel is exactly at above the problems of the prior art, on existing charging device basis, shows auxiliary circuits such as circuit, charge/discharge control circuit and voltage transformation when having increased time control, thereby has overcome above defective effectively.

Figure (1) is this utility model general structure block diagram.

Figure (2) is an embodiment of discharge loop in this utility model.

Figure (3) is the embodiment of control protective device in this utility model.

Below with reference to accompanying drawing the utility model is described in detail.

In figure (1), power supply is imported from input, sends into charge circuit behind voltage changer and node A.Charge circuit charges to the charging object by Node B in charge cycle.After charge cycle finishes, discharge by discharge loop, so continuous reciprocation cycle eliminating the polarization phenomena of battery pole plates, thereby reaches the purpose of quick charge.This system prevents the current-limiting protection device that electric current is excessive in addition in addition, makes system automatically cut off the electricity supply and to report to the police under the excessive situation of electric current.Also introduced time control in this system and in time shown device, made operating personnel can control the level of charge of charging interval and grasp storage battery easily.

Discharge loop among the embodiment shown in the figure (2) is by 6C ₅, 6R ₅, KG ₃, 6DG ₁, 6R ₆, 6C ₆Form.The bind mode of its circuit is: KG ₃Negative pole and electrochemical capacitor 6C ₅Positive pole link, its node passes through 6R ₅With 6DG ₁Emitter-base bandgap grading e link to each other 6DG ₁Base stage b by resistance 6R ₆Link to each other positive pole and the 6C of collector electrode C and diode D with " 14 " pin ₅Negative pole link to each other and 6DG ₁Base stage b and collector electrode C between electric capacity 6C is arranged ₆In parallel.(" 14 " are electronegative potential) controllable silicon KG in discharge cycle ₃So conducting is 6C ₅6C is worked as in charging ₅Voltage constantly rise after, from KG ₃Flow to 6C ₅Electric current just constantly reduce until KG ₃Turn-off.After cycle to be charged arrives, (" 14 " become high potential), 6DG ₁Base stage b become high potential, 6DG ₁Conducting, 6C ₅On electric charge through 6R ₅, 6DG ₁D bleeds off with diode.

Figure (3) is an embodiment of control protective device, by integrated circuit NE555 and triode 2DG ₅, 2DG ₆, 2DG ₁And 2DG ₃Form, wherein 2DG ₅, 2DG ₆Resistance 2R ₁₄, 2R ₁₅, 2R ₁₆, 2R ₁₇And electric capacity 2C ₆, 2C ₇Constitute and trigger reverse circuit.

Its connection relation is:

" 15 " pin of NE555 and the C utmost point and the 2R of 2DG6 ₁₂, 2R ₁₄An end link to each other 2R ₁₄The other end and 2DG ₅B extremely continuous; 2R ₁₅, 2R ₁₃With 2DG ₅C extremely continuous, and 2R ₁₅The other end and 2DG ₆B extremely continuous, 2R ₁₂, 2R ₁₃The other end all be connected in NE555 " 12 " pin, 2C ₆With 2R ₁₆An end be connected in 2DG ₆The b utmost point, 2R ₁₇, 2C ₇An end all be connected in 2DG ₅The b utmost point, and 2R ₁₆, 2C ₆, 2R ₁₇, 2C ₇And 2DG ₆And 2DG ₅The C utmost point all connect together 2DG ₆B, e the two poles of the earth connect reset switch K ₁₇

" 14 " pin of NE555 is by resistance 2R ₆2DG ₁Base stage b link to each other collector electrode C and resistance 2R ₇, electric capacity 2C ₄And 2DG ₃G extremely link to each other, drain electrode d and resistance 2R ₈Continuous, 2R ₈The other end links to each other with " 12 " pin of NE555 again.Source electrode S links to each other with coil B, 2DG ₁E electric capacity 2C ₄The other end and the other end of coil B all be connected in 2DG ₆, 2DG ₅The e utmost point.

Circuit NE555 and 2 2DG ₆The triggering reverse circuit of forming has constituted the main body of this circuit.High level appears in 14 pin at the cycle NE555 that fills, and signal makes 2DG ₁B high potential very, 2DG ₁Conducting makes 2DG ₃B utmost point step-down current potential and end, by the g of coupling coil ₂Do not send trigger impulse, discharge loop works.In discharge cycle, NE555 " 14 " pin electronegative potential makes 2DG ₁Turn-off, so 2DG ₃The g utmost point high potential appears, 2DG ₃Conducting, electric current passes through the back from g from coupling coil B ₂Send and open KG ₃Pulse, rechargable battery is to 6C ₅Discharge.

For preventing the generation of the excessive and short circuit of charging current, insert tongue tube (18,12 two ends among Fig. 2) in the circuit.When electric current excessive, the tongue tube adhesive, " 12 " are the electronegative potential points as can be seen from the circuit, the 18th, 2DG in the reverse circuit ₅So b utmost point reverse circuit upset, make " 15 point " output electronegative potential, IC " 14 " pin stops to export high potential, thereby makes KG ₁, KG ₂Not conducting, charging stop, and the reason electric current is excessive and damage with regard to having protected system for this.

The utility model is because have above characteristics, and simple and reliable, easy enforcement, and institute is so that charger has more use value easily and fast.

Claims (3)

1, a kind of quick charge device; show device, charge circuit, discharge loop and control protective device when comprising voltage changer, time control; it is characterized in that the combination of these parts: input is sent into charge circuit by voltage transformation through node A; voltage transformation can have the voltage indication; node A can insert timed unit in the place; show device and discharge loop in the time of can introducing between the charge circuit charging object, node A drawn and fed back to by protective device by Node B.

2, quick charge device as claimed in claim 1 is characterized in that the discharge loop in the quick charge device is by controllable silicon KG ₃, electric capacity 6C ₅, 6C ₆Resistance 6R ₃, 6R ₆And triode 6DG ₁Constitute KG ₃Negative pole and electric capacity 6C ₅Positive pole link to each other, its node is by resistance 6R ₅With 6DG ₁E extremely link to each other, 6DG ₁Base stage b by resistance 6R ₆Link to each other with " 14 " pin; 6DG ₁The C utmost point and positive pole and the 6C of D ₅Negative pole be connected.

3, quick charge device as claimed in claim 1, the transformer secondary that it is characterized in that the voltage changer in the quick charge device are that two identical respectively coils can make two coil by phase-change switch and connect or be connected in series.

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