CN2108374U

CN2108374U - Constant voltage charging controller for miner's lamp

Info

Publication number: CN2108374U
Application number: CN 91219210
Authority: CN
Inventors: 贾成年; 李良喜
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-07-21
Filing date: 1991-07-21
Publication date: 1992-06-24

Abstract

The utility model relates to a constant voltage charging controller for a miner's lamp, of which the charging voltage of an accumulator can be adjusted automatically. The constant voltage charging controller is provided with an auxiliary transformer, a silicon rectifier, a saturated reactor exciting winding, and resistors. A circuit board, a radiator, a loudspeaker and a light-emitting diode (LED) are installed in a casing. After voltage division, a voltage reference circuit which is composed of four resistors produces a high limit alarm reference voltage and a low limit alarm reference voltage which are added to comparators in an alarm circuit and a switching circuit respectively. A sampling voltage of a voltage sampling circuit can control a direct-current exciting current in the saturated reactor exciting winding through the switching circuit. When the sampling voltage is under over-voltage, under-voltage or alternating current caused loss of voltage, the constant voltage charging controller can alarm by sound and light through the alarm circuit.

Description

Constant voltage charging controller for miner's lamp

The utility model belongs to the adjusting device of charge in batteries voltage.

Because the fluctuation of line voltage and the continuous variation of storage battery equivalent internal resistance in charging process, the DC charging voltage that makes rectifier charging device output is also in continuous variation, influence the useful life of charging effect and storage battery thus, for charging voltage is stabilized in certain scope, the KTJB-102 type charging rack voltage regulating device that has Shanghai mine lamp factory to produce at present, this device adopts adjusting saturable reactor field winding to remove to control the dc magnetizing electric current, changes charging voltage.The dc magnetizing electric current is supplied with by auxiliary transformer FB, single phase bridge type rectifier circu, and the size of dc magnetizing electric current is regulated with potentiometer.The shortcoming of this device is that the adjusting of potentiometer is manual operation, has not only increased the workload of battery charger, and adjusting is not accomplished timely, continuous, accurate.Still be affected the useful life of charging effect and storage battery.In addition, this device lacks overvoltage, under-voltage and decompression alarm device of air.

The purpose of this utility model is to avoid the existing in prior technology shortcoming, and propose a kind of can be from the motion tracking pressure regulation, and overvoltage, under-voltage, mine lamp constant voltage charge controller that decompression is reported to the police are arranged.

The purpose of this utility model is achieved in that in the rectangle shell, and circuit board, radiator, light-emitting diode and loud speaker are housed, and on the back plate of shell binding post is housed.The secondary side of auxiliary transformer is exported to saturable reactor BK and resistance R through rectifier bridge ₁₃, BK meets triode BG on the radiator through binding post ₂R ₁₃DW on binding post and circuit board ₁And D ₆Connect D ₆Through R ₈, C ₃Meet integrated voltage stabilizer IC ₁, IC ₁Export a stable direct current as working power.Export to IC ₂, IC ₃, IC ₄, IC ₅And by R ₂--R ₅The reference voltage loop of serial connection is added on IC respectively after this loop dividing potential drop ₂--IC ₅Input; By R ₁, W ₁, W ₂, C ₁The charging voltage sampling loop of forming, R ₁Connect charge power supply, W ₂Middle termination IC ₂, IC ₃, IC ₄Another input, IC ₂, IC ₄Output termination IC ₅Input; IC ₃Output is through BG ₁, W ₁And W ₂Company's point, D ₇, D ₈, BG ₂Connect saturable reactor; IC ₅Output termination R ₁₀, LED, IC ₆, Y _S, R ₁₄And charge power supply.When the sampling voltage that obtains as W is lower than the positive transition voltage of trigger, IC ₃The output high-impedance state, BG ₁End BG ₂Conducting, the dc magnetizing electric current in the saturable reactor increases, and charging voltage is raise; When sampling voltage is higher than the negative leaping voltage of trigger, IC ₃Output low level, saturable reactor dc magnetizing electric current reduces, and charging voltage is reduced.When charging voltage overvoltage occurs and when under-voltage, will pass through IC respectively ₂, IC ₄The electronegative potential of output is added on IC ₅, IC ₅The output high-impedance state is through R ₁₀Current limliting is supplied with the luminous and integrated alarm IC circuit of LED ₆, IC ₆The driving loud speaker is reported to the police.

The utility model compared with prior art, its advantage is:

(1) charging voltage is regulated from motion tracking,

(2) the charging voltage stability is good, make its be stabilized in set point value ± 0.1 volt.

(3), improved the useful life of charging quality and storage battery because charging voltage is stable, and error is little.

(4) be provided with direct current overvoltage, under-voltage and ac voltage losing warning system, improved security reliability.

Accompanying drawing 1 is among structural representation of the present utility model (no end cap) figure: 1 is shell; 2 is loud speaker; 3 is light-emitting diode; 4 is radiator; 5 is circuit board.

Accompanying drawing 2 is among the circuit theory diagrams figure of the present utility model: IC ₁Be integrated voltage stabilizer; IC ₂--IC ₅Be integrated four voltage comparators; IC ₆Be the integrated alarm circuit; BG ₁, BG ₂Be triode; DW ₁, DW ₂Be voltage stabilizing didoe; D ₁--D ₈Be diode; LED is a light-emitting diode; Ys is a loud speaker; W ₁, W ₂Be potentiometer; R ₁--R ₁₂Be metalfilmresistor; R ₁₃Be wire-wound resistor; FB is an auxiliary transformer; RD is a fuse.

In rectangle shell (1), loud speaker (2), light-emitting diode (3), radiator (4), circuit board (5) are housed, on the back plate of shell, binding post are housed, by binding post and dc charging power supply, resistance R ₁₃, saturable reactor field winding BK and D ₅Realize being electrically connected.

80 volts of interchanges of auxiliary transformer FB secondary side output are through silicon rectification bridge D ₁--D ₄After the rectification, get a pulse direct current, the one road supplies with saturable reactor field winding BK as the dc magnetizing power supply, and another road is through R ₁₃, DW ₁And DW ₂Peel and D ₆, R ₈, C ₃, IC ₁Polyphone connects, IC ₁Export stable direct current, export to IC ₂, IC ₃, IC ₄, IC ₅As working power; One the tunnel through R ₇, IC ₂And IC ₄Output be added on IC ₅Inverting input; Another road connects by R ₂--R ₅The benchmark loop of series connection formation obtains high limit warning, charging benchmark, three reference voltages of lower bound warning after this loop dividing potential drop.High limit warning reference voltage is added on IC ₂In-phase input end; The charging reference voltage is added on IC ₃In-phase input end; Lower bound warning reference voltage is added on IC ₄Inverting input and IC ₅In-phase input end.By R ₁, W ₁, W ₂And C ₁The voltage sampling loop of forming, R ₁Be connected W with the positive pole of charge power supply ₂Mid point and IC ₂, IC ₃Inverting input and IC ₄In-phase input end be electrically connected.IC ₃Output through BG ₁, DW ₂And DW ₁Tie point, D ₇, D ₈And BG ₂Meet BK and D ₅

The positive pole one tunnel of dc charging power supply is through R ₁₀With IC ₅The anodal IC of output LED ₆Positive power source terminal be electrically connected; Another road is through R ₁₁, Y _SMeet IC ₆Output.

When charging voltage through R ₁, W ₁, C ₁After the filtering, at W ₂Middle-end obtains the sampling voltage of an actual charging voltage of reflection, is added on IC ₃On the Schmidt trigger that constitutes, when sampling is lower than the positive transition voltage of this trigger, IC ₃The output high-impedance state, BG ₁End, by DW ₁The electric current that comes is through D ₇, D ₈, make BG ₂Dc magnetizing electric current among the saturation conduction saturable reactor field winding BK increases, and charging voltage is increased; When sampling voltage is higher than the negative leaping voltage of this trigger, IC ₃Output low level, BG ₁Saturation conduction flows through DW ₁Electric current through BG ₁Go into ground, BG ₂End, the dc magnetizing electric current among the BK reduces, and charging voltage is reduced.

When charging voltage surpass selective value 10% the time, W ₂The power taking of middle-end institute is pressed and is higher than IC ₂In-phase input end voltage, IC ₂The output electronegative potential makes IC ₅Inverting input be lower than in-phase input end current potential, IC ₅Be output as high-impedance state, DC charging voltage is through R ₁₀Current limliting is supplied with LED and integrated alarm IC circuit ₆, IC ₆Drive loud speaker Y _SSounding alarm.

When charging voltage be lower than selective value 10% the time, W ₂The power taking of middle-end institute is forced down in IC ₄Inverting input voltage, IC ₄The output electronegative potential, IC ₅The output high-impedance state, same LED is bright, Y _SSounding alarm.When the AC network decompression, the secondary side of auxiliary transformer FB does not have the output of interchange, IC ₁The no-output direct current is given IC ₂--IC ₅, this moment IC ₅Be output as high-impedance state, make the bright and Y of LED _SSounding alarm.

Claims

1, a kind of mine lamp constant voltage charge controller, be by auxiliary transformer, silicon rectifier, saturable reactor field winding and resistance R 13, form, it is characterized in that in shell (1), loud speaker (2) is housed, light-emitting diode (3), radiator (4), circuit board (5), direct current by silicon rectifier output, through resistance R 13, behind voltage stabilizing secondary utmost point pipe DW1 and the voltage stabilizing didoe DW2 slicing, meet diode D6, resistance R 8, capacitor C 3, comparator IC1, comparator IC1 output stable DC is as working power, flow to comparator IC2, comparator IC3, comparator IC4, comparator IC5 reaches by resistance R 2, resistance R 3, resistance R 4, the reference voltage loop of resistance R 5 serial connections, be added on comparator IC2 respectively after this loop dividing potential drop, comparator IC3, the input of comparator IC4 and comparator IC5, comparator IC2, comparator IC3, another input of comparator IC4 is connected with potentiometer W2 middle-end in the voltage sampling loop, resistance R 1 in the voltage sampling loop connects charge power supply, the output of comparator IC3 is through triode BG1, company's point of voltage stabilizing didoe DW1 and voltage stabilizing didoe DW2, diode D7, diode D8, triode BG2 meets saturable reactor field winding and diode D5, and the output of comparator IC2 and comparator IC4 is connected with the input of comparator IC5; The output connecting resistance R10 of comparator IC5, LED, integrated alarm IC circuit 6 also are connected with charge power supply through loud speaker Ys, resistance R 11.

2, the described mine lamp constant voltage charge of claim 1 controller is characterized in that being on off state by the switching circuit that comparator IC3, resistance R 6, triode BG1, triode BG2, diode D7, diode D8 form.