CN201830156U - Power raising device with low value and stable voltage - Google Patents

Abstract

A power raising device with a low value and stable voltage belongs to a direct-current power supply using alternating current. The power raising device with the low value and stable voltage mainly formed by sequentially cascading a 220V alternating current transformation circuit, a rectifier circuit and a filter circuit, the rectifier circuit and the filter circuit are respectively formed by a rectifier D1-4 and an electrolytic capacitor C1, the positive output end and the negative output end of each rectifier D1-4 are respectively connected with the anode and the cathode of each electrolytic capacitor C1, the anode and the cathode of each electrolytic capacitor C1 are respectively connected to the input end and the earth terminal of an integrated voltage regulator 117S, the output end of the integrated voltage regulator 117S is connected to the anode of a socket, one end of a resistance R2 is connected to the anode of the socket, the other end of the resistance R2 is grounded, one end of a slide arm of a potentiometer W is connected to the input end of the integrated voltage regulator 117S, the other end of the potentiometer W is connected to the anode of the socket CZ, and the cathode of the socket CZ is grounded. The power raising device with the low value and stable voltage provided by the utility model has simple and effective circuits, and is particularly suitable for a direct-current working power supply of an electronic lighter.

Description

Low value voltage stabilizing and power ascension device

Technical field

The utility model relates to dc supply, especially for the electrical type fire maker, adopts the dc supply of 220V alternating current after transformation, rectification etc. are handled.

Background technology

At gas appliance of electric current and voltage, infrared measurement of temperature, quartz clock, remote controller and each family etc., all be extensive use of 3V, 1.5V is battery operated.Because it is limited that all batteries contain electric weight, thus need often to change, otherwise the meeting operational failure, even make false judgment, draw new danger etc.

Now be example with the coal gas implement, such utensil comprises cooking stove, water heater, the stove etc. of warming oneself by a fire.In the use, they need kindling material in time to ignite in the valve that turns on the gas-fire, otherwise coal gas will aloft fill the air, and distribute poison gas, even initiation fire etc.Kindling material comprise match, lighter, after be improved to ignition and pulse rifle etc., though one of a ratio improves and improves, but existing widely used electrical type fire maker, but generally adopt a joint or two joint 1.5V batteries as the energy, produce high-frequency impulse through vibration, eject spark in the operation, remove to light the coal gas of unlatching.

Yet when power supply decline, the spark amount that electron gun can not strike sparks or discharge is not enough, just can't light flare.No matter the user is continuously or intermittent operation, and the gas that discharges before and after it all will be built up in the utensil casing, thus when certain when once Mars moment is ignited water heater, will produce detonation, send " bang " loud noise and cause sharp pounding, both made the people terrified, be fraught with risks really again.

At the problems referred to above, we want to manage to solve, and its thinking is to adopt electric main, changes it into 3V, the work of 1.5V ad eundem D.C. regulated power supply, has both avoided duty to change battery thus, improves coefficient of safety again.

The elementary apparatus structure that adopts alternating current to become DC operation is asked for an interview Fig. 1.

Because of adopting civil power work, thus at first to carry out processing such as step-down, rectification, filtering since the integrated regulator on the market be generally 78 * * type, no matter be gold envelope or plastic packaging, minimum voltage is 5 volts, i.e. so WY7805 is to only needing the magnitude of voltage incompatibility of 3V even 1.5V work.For this reason, we imagine utilization dividing potential drop method and handle, and resupply coal gas implement and use as igniting.

According to structure of block diagram, we have designed interlock circuit, ask for an interview Fig. 2.

As can see from Figure 2, the 220V civil power inserts through K switch 1-1 and insurance BX, through transformer B step-down, diode D1-4 rectification, capacitor C 1 filtering, integrated package WY1 voltage stabilizing, obtains the 5V DC power supply again.At this moment, apparently higher than the magnitude of voltage of a double cell 3V and a batteries 1.5V, for this reason, we have set up resistance R 1, R2, in the ratio dividing potential drop of 3: 5 and 1.5: 5, then to gas cooker and water heater supply power.

Above voltage division processing is feasible in theory, also is satisfactory in zero load debugging, can but be in failure on probation linking with Gas appliance, and its out-put supply is not lighted coal gas implement by predetermined manner.So we have done further test and analysis, because the back relates to the concrete data of voltage, electric current and some elements, for the purpose of clear, we will be that example is introduced with the water heater working state of a batteries 1.5V low voltage.

Through practical and test, we find can not adopt the above resistance of kilo-ohm level to do dividing potential drop to R1 and R2, because starting current:

I＝U/R＝5÷1000＝0.005 (A)

Promptly only be several milliamperes, and the water heater starting current need more than 100 milliamperes, thus can not meet the demands, even the sign of sparking does not all have.We change the back and get R1, R2 and be respectively 36 and 15 ohm, and they will distribute voltage to be:

U _R1＝36*5/(36+15)＝3.53 (V)

U _R2＝15*5/(36+15)＝1.47 (V)

Through actual measurement, both voltages adhere to specification fully when unloaded, but on line records U in trying out _R2Voltage only has about 1V, does not still fire fire.The post analysis voltage so many reason that descends is that water heater is provided vibration, radiating circuit for oneself and also had internal resistance, and it is in parallel that this internal resistance and R2 form, and makes it resistance and descend, and moves dividing potential drop thus also with regard to significantly reduction.

Now establishing the water heater internal resistance is Rn, with the parallel of used 15 Ohmic resistances of R2 is:

R _b＝15Rn/(15+Rn)

Bring U into _R2Formula:

U _R2＝15Rn/(15+Rn)*5/[36+15Rn/(15+Rn)] (V)

Extrapolating the internal resistance calculating formula is:

Rn＝540*U _R2/(75-51*U _R2)

Bring U into _R2Measured value 1V, can be regarded as

Rn=540*1/ (75-51*1)=22.5 (ohm)

At this moment parallel resistance value is:

R=22.5*15/ (22.5+15)=9 (ohm)

The electric current that produces is:

I=U _Surely/ R=5/ (36+9)=0.11 (A)

Try out and do not fire fire, promptly do not start, illustrate that the partial pressure value and the magnitude of current are all little.

For a change it needs to improve the Rn partial pressure value, because the water heater internal resistance can not become, so we just try to improve the parameter of R2, to reaching to 30 ohm, the combustion fire is played by the about 1.3V side of voltage, devotes oneself to work.30 ohm brought in the formula calculate:

U _Rn＝30*22.5/(30+22.5)*5/[36+15*22.5/(30+22.5)]＝12.8*0.1025＝1.312

As seen, calculated value and measured value basically identical.Though this voltage has been lighted water heater, but also has big gap from the 1.5V nominal value, even be in the combustion and the critical condition of not firing, but the numerical value of R2 can not excessively promote again, because after starting, water heater power consumption reduces, be equivalent to internal resistance and increase, proportion rises, through actual measurement, after water heater enters operate as normal, U _RnMagnitude of voltage approaches 2V, substantially exceeds the 1.5V rated value, and this all will impact the safety and the life-span of providing ignition for oneself, so inadvisable.For this reason, need us further to study and seek new solution.

Along with the adjustment exploitation of components and parts product, we had purchased LM1117-3V and SMD integrated package of pressure-stabilizing of 117S-1.5V two classes and 78 series of comparisons afterwards on market, certain difference is arranged.Different such as volume, pin is different, and carrying load ability is also different etc.

Learn by calculating and actual measurement, the starting current of water heater is near 200 milliamperes, so, if adopt Fig. 3 circuit, after the voltage stabilizing of WY2--117S type, directly power to water heater, then voltage is drawn equally and is collapsed below 1.3V, promptly lose voltage regulation result, also be difficult for lighting gas burner, and exist the danger of burning regulator block.

So we think, to water heater class starting current and the bigger equipment of stabling current great disparity, should not directly adopt 117S type regulator block to be linked with load, are necessary to augment measure, make it both to bring into play pressure stabilization function, again the reinforcing band load capacity.

Two kinds of firing circuits that the front was simply introduced, both successes, failure respectively has length again, and for this reason, we combine both, allow its mutual supplement with each other's advantages, and situation must change.

The utility model content

The purpose of this utility model provides and a kind ofly can satisfy power match low value voltage stabilizing and power ascension device that require, that be used for the electrical type fire maker.

This novel purpose is achieved in that a kind of low value voltage stabilizing and power ascension device, mainly by 220V alternating current transforming circuit, rectification circuit, filtered circuit in turn level connect and to form, rectification circuit and filter circuit are made up of rectifier D1-4 and electrochemical capacitor C1 respectively, and the positive and negative output of rectifier D1-4 connects the positive and negative electrode of electrochemical capacitor C1 respectively; The positive and negative electrode of electrochemical capacitor C1 is connected to input and the earth terminal of integrated regulator 117S respectively, the output of integrated regulator 117S is connected to socket CZ positive pole, resistance R 2 one is terminated at socket CZ positive pole, other end ground connection, the travelling arm one of potentiometer W is terminated at the input of integrated regulator 117S, the other end of potentiometer W is connected to socket CZ positive pole, socket CZ minus earth.

Consisting of of above-mentioned 220V alternating current transforming circuit: transformer B primary coil one is terminated at the fixed contact of the first K switch 1-1 of double third gear switch, the moving contact of this first K switch 1-1 connects the 220V alternating current fire wire, another termination of transformer B primary coil 220V alternating current zero line; Also have working indicating: the moving contact of the second switch K1-2 of above-mentioned double third gear switch is connected to secondary coil one end of transformer B, the fixed contact of this second switch K1-2 is connected in series light-emitting diode Fg1 and resistance R 1 back ground connection, the secondary coil other end ground connection of transformer B in turn; The moving contact of this second switch K1-2 is connected to the input of described rectifier D1-4, another input end grounding of rectifier D1-4.

Above-mentioned resistance R 2 is 30 ohm, and potentiometer W is 100 ohm.

Also have the plug that mates with socket CZ, and be connected with connection clamp on the plug.

This new structure is simply distinct, but folds layer by layer into, and work summary and the optimum organization of process long period form, and end is got up, and has following advantage:

1, realizes AC-DC, both replaced the battery function, avoided duty to change battery, reduced harm such as detonation again, strengthened security and stability.

2, exert oneself by single channel and become two-way and exert oneself,, promptly reach the low value voltage regulation result, strengthened carrying load ability again to electricity consumption facility parallel operation;

3, circuit adapts to face width, can be applicable in eurypalynous 1.5V, 3V gas appliance and other instrumentation table meter;

4, adopt the clip bind mode, be easy to use, do not change device structure, so when the interchange galvanic couple has power failure, take off clip, set up battery, coal gas implement can recover original state work again.

5, have and fall this and energy-efficient treatment, circuit is terse effectively.

Description of drawings

Fig. 1 is the working power block diagram that existing igniter is handed over straight dividing potential drop;

Fig. 2 is the circuit diagram of working power shown in Figure 1;

Fig. 3 is the circuit diagram that pressurizer shown in Figure 2 adopts the paster regulator block;

Fig. 4 is this novel circuit block diagram;

Fig. 5 is the circuit diagram of Fig. 4;

Fig. 6 is the plug and water heater power supply box (two arrows are represented the power pack wiring among the figure) connection diagram of band connection clamp.

Embodiment

Fig. 4, Fig. 5 illustrate, this novel mainly by 220V alternating current transforming circuit, rectification circuit, filtered circuit in turn level connect and to form, rectification circuit and filter circuit are made up of rectifier D1-4 and electrochemical capacitor C1 respectively, and the positive and negative output of rectifier D1-4 connects the positive and negative electrode of electrochemical capacitor C1 respectively; The positive and negative electrode of electrochemical capacitor C1 is connected to input and the earth terminal of integrated regulator 117S respectively, the output of integrated regulator 117S is connected to the socket positive pole, resistance R 2 one is terminated at the socket positive pole, other end ground connection, the travelling arm one of potentiometer W is terminated at the input of integrated regulator 117S, the other end of potentiometer W is connected to socket CZ positive pole, socket CZ minus earth.Consisting of of 220V alternating current transforming circuit: the consisting of of 220V alternating current transforming circuit: transformer B primary coil one is terminated at the fixed contact 2 of the first K switch 1-1 of double third gear switch, the moving contact of this first K switch 1-1 connects the 220V alternating current fire wire, another termination of transformer B primary coil 220V alternating current zero line; Also have working indicating: the moving contact of the second switch K1-2 of above-mentioned double third gear switch is connected to secondary coil one end of transformer B, the fixed contact 33 of this second switch K1-2 is connected in series light-emitting diode Fg1 and resistance R 1 back ground connection, the secondary coil other end ground connection of transformer B in turn; The moving contact of this second switch K1-2 is connected to the input of described rectifier D1-4, another input end grounding of rectifier D1-4 (first switch, second switch also claim first group of switch, second group of switch).

Among Fig. 5, K switch 1-1 has two fixed contacts 2,3, and switch 1-2 has three fixed contacts 11,22 and 33

Resistance R 2 is 30 ohm, and potentiometer W is 100 ohm.Also have the plug that mates with socket CZ, and be connected with connection clamp on the plug.

As seen from Figure 4, the transformation of instrument front, rectification, filtering partly remain unchanged, and focus on output and change.Improved mode is with the use in parallel of two branch roads of voltage stabilizing and dividing potential drop, to improve power.

Fig. 5 is a complete design, therefrom as seen, WY2 adopts the SMD integrated package of pressure-stabilizing of 117S-1.5V, and W, R2 serial connection branch road is in parallel with it, again the output 2 of the regulator block intermediate section pressure point with potentiometer W, resistance R 2 is linked together, the gained electric weight is sent into accessory power outlet jointly.Accessory power outlet is again through plug, cable, connection folder, with power supply be sent to the water heater battery case+,-two ends, take off battery, replace its work by this instrument.

Through practical validation, when opening heater switch's (no matter being mechanical disc or hydraulic valve gate-type), it is clear strong all to strike sparks, and the Mars emission is big, very lightly apace coal gas is lighted.And by actual observation record: the UR2 starting resistor is 1.44V, and starting the back operating voltage is 1.49V, and highly stable, its effect is considerably beyond the dry cell of electric weight attenuation change.

The position of adopting potentiometer W to replace former R1 among Fig. 5 is because of different model water heater internal resistance value is not quite similar, and changes resistance so can adjust potentiometer, to adapt to the requirement of various utensil voltages, electric current distribution, like this, has expanded accommodation effectively.

With the mode of regulator block with the use in parallel of dividing potential drop branch road, also strengthened the adaptive faculty of power source change scope, such as, no matter it is 3V, 6V, 9V or other numerical value that transformer is paid polygonal voltage, all can make preliminary dividing potential drop by the mode that W, R2 match, and then insert the 117S voltage stabilizing, and both guaranteed the work effect, strengthened mating capability again with other components and parts.Be both such circuit, also removed the setting of former first order WY1 pressurizer from, manufacturing cost is had by a relatively large margin reduce, this will can't neglect in thousands of sales volume.

K among Fig. 5 is double third gear switch (being the DPTT double-pole triple throw switch), mainly makes alternating current break-make and indicator light open and close controlling.When pushing first grade, K1-1, K1-2 all do not have connection, so be shutdown; When pushing second grade, K1-1 connects AC power, and instrument is devoted oneself to work, and this moment, K1-2 still was empty, was in off-state; When pushing third gear, K1-1 still connects AC power, so instrument works on, and this moment, K1-2 also connected the power supply in luminous indication loop through 3 pin, after the R1 step-down, lighted luminous tube Fg1, showed that instrument is in normal operating conditions.If to luminous indication is not special needs, then can return second grade, can guarantee the instrument operate as normal, can save the electric energy of luminous branch road again, this is in the equipment of water heater and use year in year out, and effect is still significantly.

Claims (4)

1. low value voltage stabilizing and power ascension device, mainly by 220V alternating current transforming circuit, rectification circuit, filtered circuit in turn cascade form, it is characterized in that: described rectification circuit and filter circuit are made up of rectifier D1-4 and electrochemical capacitor C1 respectively, and the positive and negative output of rectifier D1-4 connects the positive and negative electrode of electrochemical capacitor C1 respectively; The positive and negative electrode of electrochemical capacitor C1 is connected to input and the earth terminal of integrated regulator 117S respectively, the output of integrated regulator 117S is connected to socket CZ positive pole, resistance R 2 one is terminated at socket CZ positive pole, other end ground connection, the travelling arm one of potentiometer W is terminated at the input of integrated regulator 117S, the other end of potentiometer W is connected to socket CZ positive pole, socket CZ minus earth.

2. according to described low value voltage stabilizing of claim 1 and power ascension device, it is characterized in that: the consisting of of described 220V alternating current transforming circuit: transformer B primary coil one is terminated at the fixed contact (2) of the first K switch 1-1 of double third gear switch, the moving contact of this first K switch 1-1 connects the 220V alternating current fire wire, another termination of transformer B primary coil 220V alternating current zero line; Also have working indicating: the moving contact of the second switch K1-2 of above-mentioned double third gear switch is connected to secondary coil one end of transformer B, the fixed contact (33) of this second switch K1-2 is connected in series light-emitting diode Fg1 and resistance R 1 back ground connection, the secondary coil other end ground connection of transformer B in turn; The moving contact of this second switch K1-2 is connected to the input of described rectifier D1-4, another input end grounding of rectifier D1-4.

3. according to described low value voltage stabilizing of claim 2 and power ascension device, it is characterized in that: described resistance R 2 is 30 ohm, and potentiometer W is 100 ohm.

4. according to described low value voltage stabilizing of claim 3 and power ascension device, it is characterized in that: also have the plug that mates with socket CZ, and be connected with connection clamp on the plug.

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