CN202841591U

CN202841591U - Charging and discharging circuit used for solar street lamp

Info

Publication number: CN202841591U
Application number: CN2012204779603U
Authority: CN
Inventors: 肖勇波
Original assignee: HUNAN DONGDAI OPTOELECTRONIC TECHNOLOGY Co Ltd
Current assignee: HUNAN DONGDAI OPTOELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2012-09-19
Filing date: 2012-09-19
Publication date: 2013-03-27
Anticipated expiration: 2022-09-19

Abstract

The utility model provides a charging and discharging circuit used for a solar street lamp. The circuit comprises an overcharge control circuit and an overdischarge control circuit, a first contact switch is connected with a power supply anode, the output end of the first contact switch is connected with a first resistor, the first resistor is connected with a first diode, the first diode is connected with a power supply cathode, the second diode is connected with one end of a sixteenth resistor and is then connected with a second resistor, a third resistor, a fourth resistor and is then connected to one end of a second contact switch, and the other end of the second resistor is connected with the overcharge control circuit and the overdischarge control circuit and is then connected with one end of a voltage stabilizing diode. According to the scheme, in months of insufficient solar irradiation, since the storage battery is generally in a relatively low charging state, the load working current is relatively small, the power is low, and a system can work for a relatively long time, and on the contrary, when the solar irradiation is relatively sufficient, the load working current is relatively large, the power is high, and the solar lamp street is relatively bright.

Description

A kind of charge-discharge circuit for solar street light

Technical field

The utility model relates to the street lamp device technical field, refers in particular to a kind of charge-discharge circuit for solar street light.

Background technology

The energy and associated environment become the focus that various countries, the whole world pay close attention to the most in recent years, and each state all solves the energy and environment problem in the national conditions from own this country.Concerning China, because especially oil, gas, water of energy resources shortage per capita, environmental carrying capacity also is resource-constrained, western ecology fragility, this problem is particularly serious, and it will restrict greatly the sustainable development of China and leave living space for the our children and our children's children of the Chinese nation breath that lives.Say that in a sense the development of human society be unable to do without the appearance of high-grade energy and the use of advanced energy technology.In the world today, the development of the energy, the energy and environment are the whole world, whole mankind's questions of common interest, also are the major issues of Chinese society economic development.In recent years, China GDP every year is with 10% speed development, the hurried increase of energy resource consumption, and environment, ecology go from bad to worse.This hard to carry on to development model naturally unordered, that predatoriness is asked for, in fact caused current very serious, irreversible consequence, the punishment of the Nature constantly shows especially out, and also will continue to increase the weight of.Current international conventional energy resource price rises steadily, and domestic energy supply is nervous, and the embarrassment of power cuts to limit consumption appears in many cities, and energy substitution has risen to the height of national energy strategic security.Under such severe situation, the development and utilization new and renewable sources of energy trend that is inevitable, in new forms of energy and reproducible energy family, solar energy becomes the most noticeable, and the work that conducts a research is maximum, most widely used member.Solar energy has inexhaustible, and energy stabilization, can not cause the many advantages such as environmental pollution, increasing road lamp power supply changes solar power generation into, but existingly utilizes the street lamp of solar energy mostly to have complex structure, street lamp can not Based Intelligent Control etc. shortcoming.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of simple in structure, long service life, stable solar street light charge-discharge circuit are provided.

For achieving the above object, technical scheme provided by the utility model is: a kind of charge-discharge circuit for solar street light, described circuit includes and overcharges control circuit A, cross and put control circuit B, the first resistance R 1, the second resistance R 2, the first continuous potentiometer W1, the first diode D1, the second diode D2, wherein, the input of the first contact switch K1 connects with positive source N, a wherein pin of the first contact switch K1 output connects with the first resistance R 1 one ends, the first resistance R 1 other end connects with the first diode D1 one end, the first diode D1 other end connects with power cathode S, another pin of the first contact switch K1 output connects with the second diode D2 one end, the second diode D2 other end with after the 16 resistance R 16 1 ends connect again respectively with the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4 one ends are attached to the second contact switch K2 one end after connecting, the second resistance R 2 other ends with overcharge control circuit A, cross to put and connects with voltage stabilizing didoe DR2 one end again after control circuit B connects, the voltage stabilizing didoe DR2 other end and being attached on the power cathode S; The 3rd resistance R 3 other ends are attached to the first continuous potentiometer W1 one end again with overcharging after control circuit A connects, the first continuous potentiometer W1 other end connects with power cathode S; Overcharging the control circuit A other end connects with the second contact switch K2 input; The 4th resistance R 4 other ends link with the second continuous potentiometer W2 one end after putting control circuit B and connecting with crossing again, and the second continuous potentiometer W2 other end connects afterwards ground connection with power cathode S; Cross and put the control circuit B other end and link with the second contact switch K2 input, the 5th diode D5 one end respectively, the 5th diode D5 other end connects with the 14 resistance R 14 1 ends, and the 14 resistance R 14 other ends connect with second one of them output of contact switch K2; Second another output of contact switch K2 connects with the 3rd contact switch K3 input, and the 3rd contact switch K3 output connects with LED lamp holder 2.

The described control circuit A that overcharges includes the first operational amplifier U1, the first triode Q1, the second triode Q2, the 5th resistance R 5, the 15 resistance R 15, wherein, the input cathode of the first operational amplifier U1 is connected between the 3rd resistance R 3 and the first continuous potentiometer W1, the input anode of the first operational amplifier U1 is connected between the second resistance R 2 and the voltage stabilizing didoe DR2, the output of the first operational amplifier U1 and the 15 resistance R 15 1 ends link, and the other end of the 15 resistance R 15 connects with the base stage of the first triode Q1; The 5th resistance R 5 one ends connect with the input cathode of the first operational amplifier U1, and the other end connects with the output of the first operational amplifier U1; The collector electrode of the first triode Q1 connects with the 7th resistance R 7, the 8th resistance R 8 one ends respectively, the 8th resistance R 8 one end other ends connect with the base stage of the second triode Q2, the collector electrode of the second triode Q2 is connected with the 9th resistance R 9, the 3rd diode D3 one end respectively, and the 7th resistance R 7, the 9th resistance R 9, the 3rd diode D3 other end all are attached on the second contact switch K2.

Described mistake is put control circuit B and is included the second operational amplifier U2, the 3rd triode Q3, the 4th triode Q4, the 6th resistance R 6, the 13 resistance R 13, wherein, the input cathode of the second operational amplifier U2 is connected between the second resistance R 2 and the voltage stabilizing didoe DR2, the input anode of the second operational amplifier U2 is connected between the 4th resistance R 4 and the second continuous potentiometer W2, the output of the second operational amplifier U2 and the 13 resistance R 13 1 ends link, and the other end of the 13 resistance R 13 connects with the base stage of the 3rd triode Q3; The 6th resistance R 6 one ends connect with the input cathode of the second operational amplifier U2, and the other end connects with the output of the second operational amplifier U2; The collector electrode of the 3rd triode Q3 respectively with the tenth resistance R 10, the 11 resistance R 11 1 ends are connected, the base stage of the 11 resistance R 11 other ends and the 4th triode Q4 links, the collector electrode of the 4th triode Q4 respectively with the 12 resistance R 12, the 4th diode D4 one end is connected, the tenth resistance R 10, the 12 resistance R 12, be attached to the second contact switch K2 input after the 4th diode D4 other end parallel connection, the emitter of the 4th triode Q4 and the 5th diode D4 one end link, the 5th diode D4 other end and the 14 resistance R 14 1 ends link, and the 14 resistance R 14 other ends connect with the second contact switch K2 output.

The utility model has the advantage of:

(1) life-span is long.The life-span of LED reaches 100000h, and the life-span of incandescent lamp generally is no more than 2000 h, and the life-span of fluorescent lamp is only about 5000 h.

(2) efficient is high.With respect to traditional first generation lighting source incandescent lamp, the power consumption of LED only has the former 10%～20%.

(3) environmental protection.Compare with widely used second generation fluorescent light, LED is not mercurous, without stroboscopic, is a kind of environmental protection light source.

(4) low temperature resistant.The environment serviceability temperature is at one 40 ℃～80 ℃, and environmental suitability is very strong.

(5) this programme have the overdischarge of electricity storage preventing pond, the function of overcharging, some months in the solar irradiation deficiency, because the charged state of storage battery is usually lower, terminal voltage is also lower when making battery discharging, the loaded work piece electric current is less like this, power is little, system also can work the longer time, on the contrary when solar irradiation was relatively sufficient, the loaded work piece electric current was large, power greatly, also brighter.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Embodiment

The utility model is described in further detail below in conjunction with institute's drawings attached, preferred embodiment of the present utility model is: referring to accompanying drawing 1, the described charge-discharge circuit for solar street light of present embodiment includes and overcharges control circuit A, cross and put control circuit B, the first resistance R 1, the second resistance R 2, the first continuous potentiometer W1, the first diode D1, the second diode D2, wherein, the input of the first contact switch K1 connects with positive source N, a wherein pin of the first contact switch K1 output connects with the first resistance R 1 one ends, the first resistance R 1 other end connects with the first diode D1 one end, the first diode D1 other end connects with power cathode S, another pin of the first contact switch K1 output connects with the second diode D2 one end, the second diode D2 other end with after the 16 resistance R 16 1 ends connect again respectively with the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4 one ends are attached to the second contact switch K2 one end after connecting, the second resistance R 2 other ends with overcharge control circuit A, cross to put and connects with voltage stabilizing didoe DR2 one end again after control circuit B connects, the voltage stabilizing didoe DR2 other end and being attached on the power cathode S; The 3rd resistance R 3 other ends are attached to the first continuous potentiometer W1 one end again with overcharging after control circuit A connects, the first continuous potentiometer W1 other end connects with power cathode S; Overcharging the control circuit A other end connects with the second contact switch K2 input; The 4th resistance R 4 other ends link with the second continuous potentiometer W2 one end after putting control circuit B and connecting with crossing again, and the second continuous potentiometer W2 other end connects afterwards ground connection with power cathode S; Cross and put the control circuit B other end and link with the second contact switch K2 input, the 5th diode D5 one end respectively, the 5th diode D5 other end connects with the 14 resistance R 14 1 ends, and the 14 resistance R 14 other ends connect with second one of them output of contact switch K2; Second another output of contact switch K2 connects with the 3rd contact switch K3 input, and the 3rd contact switch K3 output connects with LED lamp holder 2.Overcharge control circuit A and include the first operational amplifier U1, the first triode Q1, the second triode Q2, the 5th resistance R 5, the 15 resistance R 15, wherein, the input cathode of the first operational amplifier U1 is connected between the 3rd resistance R 3 and the first continuous potentiometer W1, the input anode of the first operational amplifier U1 is connected between the second resistance R 2 and the voltage stabilizing didoe DR2, the output of the first operational amplifier U1 and the 15 resistance R 15 1 ends link, and the other end of the 15 resistance R 15 connects with the base stage of the first triode Q1; The 5th resistance R 5 one ends connect with the input cathode of the first operational amplifier U1, and the other end connects with the output of the first operational amplifier U1; The collector electrode of the first triode Q1 connects with the 7th resistance R 7, the 8th resistance R 8 one ends respectively, the 8th resistance R 8 one end other ends connect with the base stage of the second triode Q2, the collector electrode of the second triode Q2 is connected with the 9th resistance R 9, the 3rd diode D3 one end respectively, and the 7th resistance R 7, the 9th resistance R 9, the 3rd diode D3 other end all are attached on the second contact switch K2.Cross and put control circuit B and include the second operational amplifier U2, the 3rd triode Q3, the 4th triode Q4, the 6th resistance R 6, the 13 resistance R 13, wherein, the input cathode of the second operational amplifier U2 is connected between the second resistance R 2 and the voltage stabilizing didoe DR2, the input anode of the second operational amplifier U2 is connected between the 4th resistance R 4 and the second continuous potentiometer W2, the output of the second operational amplifier U2 and the 13 resistance R 13 1 ends link, and the other end of the 13 resistance R 13 connects with the base stage of the 3rd triode Q3; The 6th resistance R 6 one ends connect with the input cathode of the second operational amplifier U2, and the other end connects with the output of the second operational amplifier U2; The collector electrode of the 3rd triode Q3 respectively with the tenth resistance R 10, the 11 resistance R 11 1 ends are connected, the base stage of the 11 resistance R 11 other ends and the 4th triode Q4 links, the collector electrode of the 4th triode Q4 respectively with the 12 resistance R 12, the 4th diode D4 one end is connected, the tenth resistance R 10, the 12 resistance R 12, be attached to the second contact switch K2 input after the 4th diode D4 other end parallel connection, the emitter of the 4th triode Q4 and the 5th diode D4 one end link, the 5th diode D4 other end and the 14 resistance R 14 1 ends link, and the 14 resistance R 14 other ends connect with the second contact switch K2 output.After having adopted such scheme, overcharge control, be at storage battery exactly and disconnect charging circuit when overcharging state, crossing and putting control circuit is exactly to be at storage battery to disconnect discharge circuit when putting state.Overcharging, excessively put control all is in order to protect storage battery, to prolong the useful life of storage battery.Overcharge, cross and put control circuit such as Fig. 4.Overcharge; crossing the foundation of putting judgement mainly is the height of battery tension; the switch series that overcharges in the control circuit contact switch is associated in the charging circuit; when when have sunlight daytime, being in normal charging condition; normally closed to charge in batteries through the contact switch switch by the solar panels heat absorption; when the voltage of storage battery is higher than 26V; think that storage battery is in the state of overcharging; U1A output "-" when U1A "-" terminal voltage is higher than "+" terminal voltage; low level; make the first triode Q1 cut-off; simultaneously the second triode Q2 conducting, the contact switch coil electricity, then the normally closed point of contact switch disconnects; the normal closure of making war; it is bright that the charging circuit disconnection overcharges indicator light, stops to charge in batteries, reaches the over-charge protective function.

The embodiment of the above is the preferred embodiment of the utility model only, is not to limit practical range of the present utility model with this, so the variation that all shapes according to the utility model, principle are done all should be encompassed in the protection range of the present utility model.

Claims

1. charge-discharge circuit that is used for solar street light, it is characterized in that: described circuit includes and overcharges control circuit (A), cross and put control circuit (B), the first resistance (R1), the second resistance (R2), the first continuous potentiometer (W1), the first diode (D1), the second diode (D2), wherein, the input of the first contact switch (K1) connects with positive source (N), a wherein pin of the first contact switch (K1) output connects with the first resistance (R1) end, the first resistance (R1) other end connects with the first diode (D1) end, the first diode (D1) other end connects with power cathode (S), another pin of the first contact switch (K1) output connects with the second diode (D2) end, the second diode (D2) other end with after the 16 resistance (R16) end connects again respectively with the second resistance (R2), the 3rd resistance (R3), the 4th resistance (R4) end is attached to the second contact switch (K2) end after connecting, the second resistance (R2) other end with overcharge control circuit (A), cross to put and connects with voltage stabilizing didoe (DR2) end again after control circuit (B) connects, voltage stabilizing didoe (DR2) other end and being attached on the power cathode (S); The 3rd resistance (R3) other end is attached to the first continuous potentiometer (W1) end after control circuit (A) connects again with overcharging, and the first continuous potentiometer (W1) other end connects with power cathode (S); Overcharging control circuit (A) other end connects with the second contact switch (K2) input; The 4th resistance (R4) other end links with the second continuous potentiometer (W2) end after putting control circuit (B) and connecting with crossing again, and the second continuous potentiometer (W2) other end connects afterwards ground connection with power cathode (S); Cross and put control circuit (B) other end and link with the second contact switch (K2) input, the 5th diode (D5) end respectively, the 5th diode (D5) other end connects with the 14 resistance (R14) end, and the 14 resistance (R14) other end connects with one of them output of the second contact switch (K2); Another output of the second contact switch (K2) connects with the 3rd contact switch (K3) input, and the 3rd contact switch (K3) output connects with LED lamp holder (2).

2. a kind of charge-discharge circuit for solar street light according to claim 1, it is characterized in that: overcharge control circuit (A) and include the first operational amplifier (U1), the first triode (Q1), the second triode (Q2), the 5th resistance (R5), the 15 resistance (R15), wherein, the input cathode of the first operational amplifier (U1) is connected between the 3rd resistance (R3) and the first continuous potentiometer (W1), the input anode of the first operational amplifier (U1) is connected between the second resistance (R2) and the voltage stabilizing didoe (DR2), the output of the first operational amplifier (U1) and the 15 resistance (R15) end link, and the other end of the 15 resistance (R15) connects with the base stage of the first triode (Q1); The 5th resistance (R5) end connects with the input cathode of the first operational amplifier (U1), and the other end connects with the output of the first operational amplifier (U1); The collector electrode of the first triode (Q1) connects with the 7th resistance (R7), the 8th resistance (R8) end respectively, the 8th resistance (R8) end other end connects with the base stage of the second triode (Q2), the collector electrode of the second triode (Q2) is connected with the 9th resistance (R9), the 3rd diode (D3) end respectively, and the 7th resistance (R7), the 9th resistance (R9), the 3rd diode (D3) other end all are attached on the second contact switch (K2).

3. a kind of charge-discharge circuit for solar street light according to claim 1, it is characterized in that: putting control circuit (B) includes the second operational amplifier (U2) excessively, the 3rd triode (Q3), the 4th triode (Q4), the 6th resistance (R6), the 13 resistance (R13), wherein, the input cathode of the second operational amplifier (U2) is connected between the second resistance (R2) and the voltage stabilizing didoe (DR2), the input anode of the second operational amplifier (U2) is connected between the 4th resistance (R4) and the second continuous potentiometer (W2), the output of the second operational amplifier (U2) and the 13 resistance (R13) end link, and the other end of the 13 resistance (R13) connects with the base stage of the 3rd triode (Q3); The 6th resistance (R6) end connects with the input cathode of the second operational amplifier (U2), and the other end connects with the output of the second operational amplifier (U2); The collector electrode of the 3rd triode (Q3) respectively with the tenth resistance (R10), the 11 resistance (R11) end is connected, the base stage of the 11 resistance (R11) other end and the 4th triode (Q4) links, the collector electrode of the 4th triode (Q4) respectively with the 12 resistance (R12), the 4th diode (D4) end is connected, the tenth resistance (R10), the 12 resistance (R12), be attached to the second contact switch (K2) input after the parallel connection of the 4th diode (D4) other end, the emitter of the 4th triode (Q4) and the 5th diode (D4) end link, the 5th diode (D4) other end and the 14 resistance (R14) end link, and the 14 resistance (R14) other end connects with the second contact switch (K2) output.