CN2710253Y

CN2710253Y - Charge-discharge auto-control switch circuit for solar lamp

Info

Publication number: CN2710253Y
Application number: CN 200420040623
Authority: CN
Inventors: 谢水旺; 王志深
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-05-16
Filing date: 2004-05-16
Publication date: 2005-07-13
Anticipated expiration: 2014-05-16

Abstract

The utility model discloses a charge-discharge auto-control switch circuit for solar lamp which is characterized in that the switch circuit part of the circuit is composed of two triodes Q1 [1] and Q2 [2], and two shunt resistances R2 [2] and R3 [3]. One end of the resistance R3 [3] is connected with the positive electrode of the solar battery unit S, the other end of the resistance R3 [3] is connected with the base electrode of the triode Q1 [1]. The collecting electrode of the Q1 [1] is connected with the base electrode of the triode Q2 [2]. One end of the R 2 is connected with the positive electrode of the rechargeable accumulator E, and the other end is connected with the base electrode of the triode Q2 [2]. On the occasion of charging, the main current I<S big> of the direct current which is emit from the solar battery unit S charges the rechargeable accumulator E through the diode D and simultaneously, the secondary current I<S small> branches off through the resistance R3 [3] and reaches the base electrode of the Q1 [1], which makes the Q1 [1] conduct, the Q2 [2] close, and the bulb L switch off automatically. In night, the rechargeable accumulator E provides current to make the bulb glow. The utility model has the many functions of charging, discharging, switching on and switching off, omitting the capacitance element and the photoconductive resistance. The circuit is simple. The cost price is low. The performance is reliable. The utility model can be used for solar energy light fittings, solar energy toy vehicles, boats, and model airplane products whose power supplies are solar battery units.

Description

A kind of be used for Solar lamp discharge and recharge the automatic control switch circuit

Technical field

The utility model relates to a kind of light-operated switch control circuit that is used to discharge and recharge, particularly a kind of be used for solar energy lamp discharge and recharge the automatic control switch circuit, applicable to various be light fixture or other solar-electricity toys of the energy with the solar cell.

Technical background

The charge and discharge switch control circuit that the solar energy lamp of supplying on the existing market is used is to be improved by traditional charge and discharge switch circuit to form, and uses three triodes and a photo resistance at least, exists and uses components and parts many, the irrational shortcoming of circuit structure.

The utility model content

The purpose of this utility model be design a kind of be used for Solar lamp discharge and recharge the automatic control switch circuit, this switching circuit collection auto charge and discharge and open (lamp) and close (lamp) and be controlled in one automatically, have simple in structure, low, the dependable performance of cost, the scope of application is wide, can be used for comprising solar energy lamp, solar-electricity toy and be the light-operated switch of purpose with the switch.

The utility model is realized with following technical scheme: this switching circuit still comprises solar cell (plate) group S, chargeable storage E (or rechargeable cell E) as charge power supply and the normal charge circuit part that charges and form with diode D, and the switching circuit portion that it is characterized in that this circuit is by two triode Q ₁And Q ₂, and two shunt resistance R ₂And R ₃Form resistance R wherein ₃An end and the positive pole of solar battery group S join R ₃The other end and first order triode Q ₁Base stage join Q ₁Collector electrode meet second level triode Q ₂Base stage, wherein as the R of biasing resistance ₂A positive pole that terminates at chargeable storage E, the other end and triode Q ₂Base stage join, when charging work (have by day light penetrate according to time), send out principal current I galvanic from solar battery group S _sBig when diode D charges to chargeable storage E, from solar battery group electricity stream, through (big resistance) resistance R ₃Distribute primary current I _{S is little}Arrive Q ₁Base stage makes Q ₁Conducting, Q ₂The base stage no current (R flows through among the chargeable storage E ₂Electric current through Q ₁Pass back into the negative pole of E), Q ₂End, bulb L blocked automatically turn off the light (be L will by day rayed be arranged time turn off the light automatically), and at night or under than the half-light line by the R that flows through ₂Electric current make Q ₂Conducting, then recharged battery E provides electric current to make bulb L luminous.

Compared with the prior art, the switching circuit that discharges and recharges automatic control of the present utility model is a kind of automation on-off controller that integrates charging, multiple function such as discharges, turns on light, turns off the light, and has and charges automatically daytime, the function of turning on light automatically night.Because the utility model has only been used two triodes, and can saving capacity cell and photo resistance (allow solar cell and photo resistance integrated), to have a circuit structure simple, the use element is few, and cost is low, dependable performance, the scope of application is wide, can be used for the sunlight is the energy, is power supply with the solar battery group, with common low voltage bulb (as common energy-saving lamp bubble or LED light-emitting diode), in the solar energy lamp for light source, and in solar energy toy car, ship and the model plane product.

Description of drawings

Fig. 1 is the utility model circuit theory diagrams.

Embodiment

With reference to accompanying drawing as can be known, in switching circuit of the present utility model, used bulb L can replace with common low-pressure energy-saving bulb or with the LED light-emitting diode.Positive pole and triode Q at chargeable storage E ₂Between the biasing resistance R that is connected in series ₂, its resistance should be rationally and R ₃Coupling is set up R ₂Circuit is except being Q ₂The base current I of conducting is provided _B2Outward, also consider to run in the environment overcast and rainy and that at dusk sky is also not too dark in the morning,, utilize the R that flows through for power saving (allow lighting hours lengthening at night) ₂Primary current I _B2Only can allow Q ₂Half conducting makes the LED bulb be in automatic turn-off or half turn-off.

The utility model is when specific design, and used solar panel (also claiming photovoltaic cell) should be noted and will mate by the situation of actual needs with the voltage of storage battery (or rechargeable cell).Resistance R in this switching circuit ₁Be the adjusting metering function that is used for bulb L electric current, the brightness (R of its may command bulb L ₁And R ₂Can need the arrangement of bulb brightness and lighting hours and select for use and set by the user).Resistance R ₄Be triode Q ₁The shunt resistance of base stage, its resistance is answered 〉=100K Ω.R in a word ₁, R ₂, R ₃, R ₄Resistance all should carry out rational Match.

Claims

1, a kind of be used for Solar lamp discharge and recharge the automatic control switch circuit, this circuit comprises solar battery group S, chargeable storage E as charge power supply and the normal charge circuit part that charges and form with diode D, and the switching circuit portion that it is characterized in that this circuit is by two triode Q ₁And Q ₂, and two shunt resistance R ₂And R ₃Form resistance R wherein ₃An end and the positive pole of solar battery group S join R ₃The other end and first order triode Q ₁Base stage join Q ₁Collector electrode meet second level triode Q ₂Base stage, R wherein ₂Can be used as the biasing resistance one and terminate at the positive pole of chargeable storage E, the other end and triode Q ₂Base stage join, when when charging, send out principal current I galvanic from solar battery group S _{S is big}When diode D charges to chargeable storage E, from solar battery group electricity stream, through resistance R ₃Distribute primary current I _{S is little}Arrive Q ₁Base stage makes Q ₁Conducting, Q ₂End, bulb L is blocked automatically turn off the light, and at night or under than the half-light line, by the R that flows through ₂Electric current make Q ₂Conducting, then recharged battery E provides electric current to make bulb L luminous.

2, the automatic control switch circuit that discharges and recharges according to claim 1 is characterized in that described bulb L can be with common low-pressure energy-saving bulb, and also available LED light-emitting diode replaces.