CN106300610A - There is the solar control system of charging and discharging function - Google Patents

There is the solar control system of charging and discharging function Download PDF

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Publication number
CN106300610A
CN106300610A CN201610727182.1A CN201610727182A CN106300610A CN 106300610 A CN106300610 A CN 106300610A CN 201610727182 A CN201610727182 A CN 201610727182A CN 106300610 A CN106300610 A CN 106300610A
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CN
China
Prior art keywords
resistance
circuit
charging
discharge
electric capacity
Prior art date
Application number
CN201610727182.1A
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Chinese (zh)
Inventor
高传芳
高峰
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苏州苏宝新能源科技有限公司
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Priority to CN201610727182.1A priority Critical patent/CN106300610A/en
Publication of CN106300610A publication Critical patent/CN106300610A/en

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20Charging or discharging characterised by the power electronics converter
    • Y02E10/566

Abstract

The invention discloses a kind of solar control system with charging and discharging function, including solaode, controller for solar, accumulator and transducer air conditioning, controller for solar includes charging circuit, control circuit, lightning protection circuit and discharge circuit, transducer air conditioning includes inverter circuit and compressor, charging circuit includes the 21st to the 22nd diode, 23rd light emitting diode, 20th to the 28th resistance, 21st critesistor, 22nd critesistor, 21st audion, 21st electric capacity, 22nd electric capacity and the 21st charging management chip, control of discharge unit includes the 41st resistance, 42nd electric capacity and the 41st audion, discharge paths includes the 45th discharge resistance and the 42nd metal-oxide-semiconductor.The present invention can effectively lightning protection, improve security of system performance, easy for installation, cost is relatively low, reliability is higher, energy consumption is relatively low.

Description

There is the solar control system of charging and discharging function

Technical field

The present invention relates to solar airconditioning field, particularly to a kind of solar control system with charging and discharging function System.

Background technology

Solar air-conditioner system is made up of parts such as solaode, controller, accumulator and transducer air conditionings.Existing Solar air-conditioner system has following defects that controller Lighting Protection Measures is ineffective, affects security of system performance;Accumulator is many Inevitably there is inconsistent situation in capacity and self discharge between individual cell batteries, affects the life of storage battery.

It addition, when occur continuous print several overcast and rainy time, the electric power of accumulator is not enough to maintain and is powered equipment work Needing, this will affect the normal work of the equipment of being powered, and will solve this problem, can strengthen accumulator and solar panel Capacity, the most unavoidably need to lay power line, can bring about a large amount of construction and great number cost, its cost can be significantly Rise.It addition, electromagnetic interference also can affect solar air-conditioner system, when it uses, reliability is the highest.

Inverter is generally used for unidirectional current is converted to alternating current, and it has generally included DC side energy storage electricity at DC side Hold.When inverter quits work, the electric energy being stored on DC side storage capacitor needs quickly to discharge.Especially change The inverter that voltage is higher, it is when quitting work, and the danger of the electric energy being stored on DC side storage capacitor is bigger.Therefore When the power supply of disconnection inverter makes it quit work, need be exceedingly fast to be discharged by the electric energy on its DC side storage capacitor.

Traditional discharge circuit typically directly connects a resistance between the both positive and negative polarity of DC side storage capacitor, by this electricity Resistance consumes the electric energy on this stream side storage capacitor.When inverter is properly functioning, resistance is parallel to DC side energy storage always The two ends of electric capacity, owing to DC side storage capacitor is on the input of the DC side being directly parallel to inverter, i.e. inverter Voltage between positive terminal and the negative pole end of DC side is loaded directly on resistance, so resistance consumes electric energy always, this Electric capacity discharge mode makes energy loss bigger.Simultaneously as resistance the most under high pressure works, the easy temperature of resistance too high and It is easily damaged, therefore it not only shortens the life-span of resistance, also reduce the security reliability of inverter work simultaneously.

Summary of the invention

The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, it is provided that one can be the most anti- Thunder, improve security of system performance, easy for installation, cost is relatively low, reliability is higher, energy consumption is relatively low has charging and discharging function Solar control system.

The technical solution adopted for the present invention to solve the technical problems is: constructs and a kind of has charging and discharging function too Sun energy control system, including solaode, controller for solar, accumulator and transducer air conditioning, described controller for solar Including charging circuit, control circuit, lightning protection circuit and discharge circuit, described transducer air conditioning includes inverter circuit and compressor, Described solaode is connected with described charging circuit, and described charging circuit is by described control circuit with described discharge circuit even Connecing, described charging circuit and discharge circuit are the most all connected with described accumulator, described control circuit by described lightning protection circuit with Described accumulator connects, and described discharge circuit is connected with described compressor also by described inverter circuit;

Described charging circuit include the 21st diode, the 22nd diode, the 23rd light emitting diode, second Ten resistance, the 21st resistance, the 22nd resistance, the 23rd resistance, the 24th resistance, the 25th resistance, second 16 resistance, the 27th resistance, the 28th resistance, the 21st critesistor, the 22nd critesistor, the 21st Audion, the 21st electric capacity, the 22nd electric capacity and the 21st charging management chip, the sun of described 21st diode Pole is connected with the positive pole of described solaode, the negative electrode of described 21st diode respectively with described 21st electric capacity One end, one end of the 20th resistance, one end of the 21st resistance, one end of the 23rd resistance, the 21st critesistor One end connect, the other end ground connection of described 21st electric capacity is also connected with the 6th pin of described charging management chip, institute 3rd pin of the other end and described charging management chip of stating the 20th resistance is connected, the other end of described 21st resistance It is connected with described one end of 22nd resistance and the 8th pin of charging management chip respectively, described 22nd resistance another One end is connected with the first pin of described charging management chip, and the other end of described 23rd resistance is respectively with the described 20th One end of four resistance and the emitter stage of the 21st audion connect, the other end of described 24th resistance and described charging valve First pin of reason chip connects, and the base stage of described 21st audion is by described 25th resistance and described charging valve 7th pin of reason chip connects, and the colelctor electrode of described 21st audion passes through described 26th resistance and described second The anode of 12 diodes connects, the negative electrode of described 22nd diode second drawing with described charging management chip respectively The positive pole of foot, one end of the 22nd electric capacity and accumulator connects, the other end ground connection of described 22nd electric capacity, and described second The other end of 11 critesistor is connected with described one end of 28th resistance and one end of the 22nd critesistor respectively, The described other end of the 28th resistance is connected with the 4th pin of described charging management chip, described 22nd critesistor Other end ground connection, the 5th pin of described charging management chip is 23rd luminous with described by described 27th resistance The anode of diode connects, the minus earth of described 23rd light emitting diode;

The DC side of described inverter circuit includes the 41st storage capacitor, one end of described 41st storage capacitor with The electrode input end of the DC side of described inverter circuit connects, the other end of described 41st storage capacitor and described inversion electricity The negative input of the DC side on road connects, the negative input ground connection of the DC side of described inverter circuit, described discharge circuit Including the control of discharge unit in parallel with described 41st storage capacitor and discharge paths, described control of discharge unit includes 41 resistance, the 42nd resistance, the 44th resistance, the 42nd electric capacity and the 41st audion, described electric discharge is propped up Road includes the 45th discharge resistance and the 42nd metal-oxide-semiconductor, and the base stage of described 41st audion passes through the described 40th One resistance connects the power supply signal outfan of described inverter circuit, and the colelctor electrode of described 41st audion is respectively with described the One end of one end of 42 resistance, one end of the 44th resistance and the 42nd electric capacity connects, described 42nd resistance The other end be connected with the electrode input end of the DC side of described inverter circuit, the emitter stage of described 41st audion and The equal ground connection of the other end of 44 resistance, the grid of described 42nd metal-oxide-semiconductor connects with the other end of described 42nd electric capacity Connecing, the drain electrode of described 42nd metal-oxide-semiconductor is by the DC side of described 45th discharge resistance and described inverter circuit just Pole input connects, the source ground of described 42nd metal-oxide-semiconductor.

In the solar control system with charging and discharging function of the present invention, described control of discharge unit is also Including the 43rd resistance, the emitter stage of described 41st audion passes through described 43rd resistance eutral grounding.

In the solar control system with charging and discharging function of the present invention, described control of discharge unit is also Including the 43rd electric capacity, described 43rd electric capacity and described 43rd resistor coupled in parallel.

In the solar control system with charging and discharging function of the present invention, described discharge paths also includes 46th resistance, the source electrode of described 42nd metal-oxide-semiconductor passes through described 46th resistance eutral grounding.

In the solar control system with charging and discharging function of the present invention, described 41st audion For NPN type triode.

In the solar control system with charging and discharging function of the present invention, described 42nd metal-oxide-semiconductor For N-channel MOS pipe.

Implement the present invention the solar control system with charging and discharging function, have the advantages that due to Be provided with lightning protection circuit, thus can effectively lightning protection, improve security of system performance;Solaode converts the solar into electricity Can, whole charging circuit is managed by charging management chip, it is ensured that air conditioner energy needs, and can avoid laying power line simultaneously The a large amount of constructions brought and great number cost, moreover it is possible to reduce the electromagnetic interference impact on system, discharge circuit is mainly by the 40th The break-make of one audion and the 42nd metal-oxide-semiconductor controls discharge paths and is operated needs when, thus improves electric discharge The security reliability of circuit work and the loss of minimizing energy;So it can effectively lightning protection, raising security of system performance, installation Conveniently, cost is relatively low, reliability is higher, energy consumption is relatively low.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used To obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the structural representation that the present invention has in one embodiment of solar control system of charging and discharging function Figure;

Fig. 2 is the circuit theory diagrams of charging circuit in described embodiment;

Fig. 3 is the circuit theory diagrams of discharge circuit in described embodiment.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise Embodiment, broadly falls into the scope of protection of the invention.

In the present invention has the solar control system embodiment of charging and discharging function, this has charging and discharging merit The structural representation of the solar control system of energy is as shown in Figure 1.In Fig. 1, this has the solar energy control of charging and discharging function System processed includes solaode PV, controller for solar 1, accumulator BAT and transducer air conditioning 2, wherein, controller for solar 1 includes charging circuit 11, control circuit 12, lightning protection circuit 14 and discharge circuit 13, and transducer air conditioning 2 includes inverter circuit 21 He Compressor 22, solaode PV is connected with charging circuit 11, and charging circuit 11 is by control circuit 12 with discharge circuit 13 even Connecing, charging circuit 11 and discharge circuit 13 are also all connected with accumulator BAT, and control circuit 12 is by lightning protection circuit 14 and accumulator BAT connects, and discharge circuit 13 is connected with compressor 22 also by inverter circuit 21.Solaode PV is the radiation of the sun to be turned It is changed to electric energy, or is sent in accumulator BAT store, or promote transducer air conditioning 2 to work.The effect of controller for solar 1 It is the duty controlling the whole solar control system with charging and discharging function, and accumulator BAT is played overcharges Electric protection and the effect of over.The effect of accumulator BAT is the electricity sent by solaode PV when there being illumination Can store, discharge again the when of to needs.Transducer air conditioning 2, can speed governing easily as AC load.

Controller for solar 1 by its lightning protection circuit 14 can effectively lightning protection, strengthen the lightning protection capability of system, raising system Security performance, accumulator BAT do not lose solar energy conversion energy on the premise of, improve the charge efficiency of accumulator battery 3 And the efficiency of actual of sun-generated electric power, accumulator BAT can ensure that again the activity of accumulator BAT while being charged, Avoid accumulator BAT to deposit, thus extend the life-span of accumulator BAT largely.

Fig. 2 is the circuit theory diagrams of charging circuit in the present embodiment, and in Fig. 2, charging circuit 11 includes the 21st pole Pipe D21, the 22nd diode D22, the 23rd LED the 23, the 20th resistance R20, the 21st resistance R21, the 22nd resistance R22, the 23rd resistance R23, the 24th resistance R24, the 25th resistance R25, the 26th Resistance R26, the 27th resistance R27, the 28th resistance R28, the 21st critesistor RT21, the 22nd critesistor RT22, the 21st audion Q21, the 21st electric capacity C21, the 22nd electric capacity C22 and the 21st charging management chip U21, wherein, the 20th resistance R20, the 24th resistance R24, the 26th resistance R26 and the 28th resistance R28 are all limited Leakage resistance, is used for carrying out overcurrent protection, improves the security performance of system.

Wherein, the anode of the 21st diode D21 is connected with the positive pole PV+ of solaode, the 21st diode The negative electrode of D21 respectively with one end of the 21st electric capacity C21, one end of the 20th resistance R20, the one of the 21st resistance R21 End, one end of the 23rd resistance R23, one end of the 21st critesistor RT21 connect, another of the 21st electric capacity C21 End ground connection is also connected with the 6th pin of charging management chip U21, the other end of the 20th resistance R20 and charging management chip 3rd pin of U21 connects, the other end of the 21st resistance R21 respectively with one end and the charging valve of the 22nd resistance R22 8th pin of reason chip U21 connects, and the other end of the 22nd resistance R22 connects with first pin of charging management chip U21 Connect, the other end of the 23rd resistance R23 respectively with the sending out of one end of the 24th resistance R24 and the 21st audion Q21 Emitter-base bandgap grading connects, and the other end of the 24th resistance R24 is connected with first pin of charging management chip U21.

In the present embodiment, the base stage of the 21st audion Q21 passes through the 25th resistance R25 and charging management chip 7th pin of U21 connects, and the colelctor electrode of the 21st audion Q21 passes through the 26th resistance R26 and the 22nd pole The anode of pipe D22 connects, the negative electrode of the 22nd diode D22 respectively with second pin of charging management chip U21, the 20th One end of two electric capacity C22 and the positive pole BAT+ of accumulator connect, the other end ground connection of the 22nd electric capacity C22, the 21st heat The other end of quick resistance RT21 connects with one end of the 28th resistance R28 and one end of the 22nd critesistor RT22 respectively Connecing, the other end of the 28th resistance R28 is connected with the 4th pin of charging management chip U21, the 22nd critesistor The other end ground connection of RT22, the 5th pin of charging management chip U21 passes through the 27th resistance R27 and the 23rd luminescence two The anode of pole pipe LED23 connects, the minus earth of the 23rd LED 23.

In the present embodiment, first pin of charging management chip U21 is charging current sensing input, and the second pin is electric power storage Cell voltage inputs, and the 3rd pin is working power input, and the 4th pin is temperature sensing input, and the 5th pin is that charged state is defeated Go out, the 6th pin be working power input, the 7th pin for charging control output, the 8th pin be charge rate compensate defeated Enter.Solar panel PV provides charging voltage for this charging circuit 11, and the 21st diode D21 is for reversely cut-off, anti- The only reverse power transmission of charging circuit 11, the 21st electric capacity C21 is the filter capacitor of charging management chip U21, the 22nd electric capacity C22 is the filter capacitor of output charging voltage, and the 22nd diode D21, for reversely cut-off, prevents because of the 21st There is leakage current and cause the kwh loss of accumulator BAT in pole pipe Q21.

In the present embodiment, first pin of charging management chip U21 can detect the pressure drop of the 23rd resistance R23, from And controlling charging current, the second pin is used for detecting charging voltage and cell voltage, and the 3rd pin and the 6th pin are used for Cut-in operation power supply, the 4th pin can be stored by the 21st critesistor RT11 and the 22nd critesistor RT22 detection The temperature of battery BAT, prevents from charging when the temperature of accumulator BAT is too high, owing to this charging circuit 11 is not required to detect accumulator The temperature of BAT, therefore the 21st critesistor RT11 and the 22nd critesistor RT22 is set to similar resistance, the 5th pin Exporting for charged state, when charging, the 23rd LED 23 is bright, the 23rd light emitting diode after being full of LED23 goes out, and the 7th pin controls, by the 25th resistance R25, the size of current that the 21st audion Q21 passes through, thus rises To the effect of control charging current, the 8th pin is by dividing between detection the 21st resistance R21 and the 22nd resistance R22 Pressure, to compensate the pressure drop in the internal driving of accumulator BAT and circuit, thus improves charge rate.

This charging circuit 11 can utilize solaode PV to accumulator BAT electric energy supplement, wherein solaode PV Solar energy is converted into electric energy, and whole charging circuit 11 is managed by charging management chip U21, it is ensured that the energy of air-conditioning needs Want, can avoid laying a large amount of constructions and the great number cost that power line brings simultaneously, also can reduce electromagnetic interference and this is had charging The impact of the solar air-conditioner system controlled.Therefore this charging circuit 11 has easy for installation, with low cost and service-strong Advantage.

Fig. 3 is the circuit theory diagrams of discharge circuit in the present embodiment.In Fig. 3, the DC side of inverter circuit includes the 40th One storage capacitor C41, one end of the 41st storage capacitor C41 connects with the electrode input end BUS+ of the DC side of inverter circuit Connecing, the other end of the 41st storage capacitor C41 is connected with the negative input BUS-of the DC side of inverter circuit, inverter circuit The negative input BUS-ground connection of DC side.In Fig. 3, the 41st resistance R41, the 42nd resistance R42, the 44th electricity Resistance R44, the 42nd electric capacity C42 and the 41st audion Q41 constitutes control of discharge unit, the 45th discharge resistance R45 Constituting discharge paths with the 42nd metal-oxide-semiconductor Q42, this discharge circuit 13 includes control of discharge unit and discharge paths, electric discharge control Unit processed and discharge paths are all in parallel with the 41st storage capacitor C41.Wherein, the 41st resistance R41 is current-limiting resistance, uses In carrying out overcurrent protection.41st electric capacity is coupling electric capacity, be used for preventing the 41st audion and the 42nd metal-oxide-semiconductor it Between interference.

In the present embodiment, the base stage of the 41st audion Q41 connects inverter circuit 21 by the 41st resistance R41 Power supply signal outfan VCC, the colelctor electrode of the 41st audion Q41 respectively with one end of the 42nd resistance R42, the 40th One end of four resistance R44 and one end of the 42nd electric capacity C42 connect, the other end of the 42nd resistance R42 and inverter circuit The electrode input end BUS+ of DC side connect, another of the emitter stage of the 41st audion Q41 and the 44th resistance R44 Holding equal ground connection, the grid of the 42nd metal-oxide-semiconductor Q42 and the other end of the 42nd electric capacity C42 connect, the 42nd metal-oxide-semiconductor Q42 Drain electrode be connected with the electrode input end BUS+ of the DC side of inverter circuit by the 45th discharge resistance R45, the 42nd The source ground of metal-oxide-semiconductor Q42.

When inverter circuit 21 normally works, its Switching Power Supply just can work normally, therefore the power supply of inverter circuit 21 letter Number outfan VCC will output voltage, now the 41st audion Q41 is at conducting state, the 41st audion Q41 Colelctor electrode at voltage V1 be pulled low (V1 ≈ 0 the most herein), so the voltage V2 of the grid of the 42nd metal-oxide-semiconductor Q42 It is pulled low, therefore the 42nd metal-oxide-semiconductor Q42 cut-off.So, the 45th discharge resistance R45 is in vacant state, therefore inverter circuit During 21 work, when the i.e. the 41st storage capacitor C41 need not electric discharge, it is to avoid the energy that the 45th discharge resistance R45 brings Amount loss and the long-time high-pressure work damage to the 45th discharge resistance R45.

When inverter circuit 21 is shut down, now still store on the 41st storage capacitor C41 within inverter circuit 21 Substantial amounts of electric energy.Now shut down due to inverter circuit 21, so Switching Power Supply does not start, therefore power supply signal outfan The voltage of VCC is about 0, so the voltage of the base stage of the 41st audion Q41 is about 0, therefore the 41st audion Q41 cuts Only.Then voltage V1=R44/ (R44+R42) the * V at the colelctor electrode of the 41st audion Q41BUS, V2 ≈ R44/ (R44+ R42)*VBUS, wherein, VBUSIt it is the magnitude of voltage at the 41st storage capacitor C41 two ends.So as V2 > Vth, (Vth is the 40th The threshold voltage of two metal-oxide-semiconductor Q42) time the 42nd metal-oxide-semiconductor Q42 conducting, therefore discharge paths is started working, the i.e. the 41st energy storage Electric energy inside electric capacity C41 starts electric discharge, V immediately by the 45th discharge resistance R45 and the 42nd metal-oxide-semiconductor Q42BUSJust Can reduce, until VBUSWhen being reduced to V2 less than Vth, i.e. VBUS< during Vth* (R44+R42)/R44, the 42nd metal-oxide-semiconductor Q42 cuts Only, then discharge paths stops electric discharge.

In the present embodiment, control of discharge unit controls the 42nd of discharge paths according to the switching on and shutting down of inverter circuit 21 The break-make of metal-oxide-semiconductor Q42, thus control whether the 45th discharge resistance R45 connects with the 41st storage capacitor C41, so that Electric energy on 41st storage capacitor C41 discharges to the 45th discharge resistance R45, i.e. the 4th in control of discharge unit The break-make of 11 audion Q41 is controlled by power supply signal outfan VCC, and then control of discharge unit controls in discharge paths the 4th The break-make of 12 metal-oxide-semiconductor Q42, thus effectively control the work of the 45th discharge resistance R45, therefore the 45th discharge resistance R45 can avoid under high pressure working for a long time, and the 45th discharge resistance R45 can carry out safety according to the start and stop of inverter circuit 21 Reliably work, so that discharge circuit 13 and inverter circuit 21 is safe and reliable, and decreases the 45th electric discharge electricity The loss of energy on resistance R45.

It is to say, the 41st audion Q41 and the 42nd metal-oxide-semiconductor Q42 can be quickly according to inverter circuit 21 Whether start and stop (i.e. the change of power supply signal outfan VCC) control the electric energy of the 41st storage capacitor C41 can be by the 4th 15 discharge resistance R45 discharge to safe current potential.Therefore discharge circuit 13 can not discharge when inverter circuit 21 works, at inversion electricity The 41st storage capacitor C41 electric discharge is made immediately, so that discharge circuit 13 is rational needs when when road 21 does not works Electric discharge, and then ensure that the 45th discharge resistance R45 and the safety of inverter circuit 21 work and reliability, and greatly reduce The energy consumption that 45th discharge resistance R45 brings.

It is noted that in the present embodiment, the 41st audion Q41 is NPN type triode, the 42nd metal-oxide-semiconductor Q42 is N-channel MOS pipe.Certainly, under the certain situation of the present embodiment, the 41st audion Q41 can also be positive-negative-positive three Pole is managed, and the 42nd metal-oxide-semiconductor Q42 can also be P-channel metal-oxide-semiconductor, but at this moment the circuit structure of discharge circuit 13 also can be sent out accordingly Changing.

In the present embodiment, control of discharge unit also includes the 43rd resistance R43, the transmitting of the 41st audion Q41 The 43rd resistance R43 ground connection is passed through in pole.43rd resistance R43 is current-limiting resistance, is used for carrying out overcurrent protection.This electric discharge control Unit processed also includes that the 43rd electric capacity C43, the 43rd electric capacity C43 and the 43rd resistance C43 are in parallel.43rd electric capacity C43 is shunt capacitance, for being bypassed by AC signal.

In the present embodiment, discharge paths also includes the 46th resistance R46, and the source electrode of the 42nd metal-oxide-semiconductor Q12 is by the 46 resistance R46 ground connection.46th resistance R46 is current-limiting resistance, is used for carrying out overcurrent protection.

In a word, due to the fact that and be provided with lightning protection circuit 14, thus can effectively lightning protection, improve security of system performance;Separately Outward, charging circuit 11 has easy for installation, with low cost and service-strong advantage, discharge circuit 13 compared to existing technology, its The 41st audion Q41, the 42nd metal-oxide-semiconductor Q42 and the 45th discharge resistance R45 is used to instead of original independent putting Electricity resistance, so can work in reasonable time according to the on off control discharge circuit 13 of inverter circuit 21, thus improve 45th discharge resistance R45 and the safety of discharge circuit 13 work and reliability, and can reduce by the 45th electric discharge Thermal losses on resistance R45.

The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.

Claims (6)

1. a solar control system with charging and discharging function, it is characterised in that include solaode, solar energy Controller, accumulator and transducer air conditioning, described controller for solar includes charging circuit, control circuit, lightning protection circuit and puts Electricity circuit, described transducer air conditioning includes that inverter circuit and compressor, described solaode are connected with described charging circuit, institute Stating charging circuit to be connected with described discharge circuit by described control circuit, described charging circuit and discharge circuit are the most all with described Accumulator connects, and described control circuit is connected with described accumulator by described lightning protection circuit, and described discharge circuit is also by institute State inverter circuit to be connected with described compressor;
Described charging circuit includes the 21st diode, the 22nd diode, the 23rd light emitting diode, the 20th electricity Resistance, the 21st resistance, the 22nd resistance, the 23rd resistance, the 24th resistance, the 25th resistance, the 26th Resistance, the 27th resistance, the 28th resistance, the 21st critesistor, the 22nd critesistor, the 21st pole Pipe, the 21st electric capacity, the 22nd electric capacity and the 21st charging management chip, the anode of described 21st diode with The positive pole of described solaode connects, the negative electrode of described 21st diode respectively with the one of described 21st electric capacity End, one end of the 20th resistance, one end of the 21st resistance, one end of the 23rd resistance, the 21st critesistor One end connects, and the other end ground connection of described 21st electric capacity is also connected with the 6th pin of described charging management chip, described The other end of the 20th resistance is connected with the 3rd pin of described charging management chip, and the other end of described 21st resistance divides It is not connected with described one end of 22nd resistance and the 8th pin of charging management chip, another of described 22nd resistance End is connected with the first pin of described charging management chip, and the other end of described 23rd resistance is respectively with the described 24th One end of resistance and the emitter stage of the 21st audion connect, the other end of described 24th resistance and described Charge Management First pin of chip connects, and the base stage of described 21st audion is by described 25th resistance and described Charge Management 7th pin of chip connects, and the colelctor electrode of described 21st audion passes through described 26th resistance and the described 20th The anode of two diodes connects, the negative electrode of described 22nd diode respectively with the second pin of described charging management chip, One end of 22nd electric capacity and the positive pole of accumulator connect, the other end ground connection of described 22nd electric capacity, and the described 20th The other end of one critesistor is connected with described one end of 28th resistance and one end of the 22nd critesistor respectively, institute 4th pin of the other end and described charging management chip of stating the 28th resistance is connected, described 22nd critesistor Other end ground connection, the 5th pin of described charging management chip is by described 27th resistance and described 23rd luminescence two The anode of pole pipe connects, the minus earth of described 23rd light emitting diode;
The DC side of described inverter circuit includes the 41st storage capacitor, and one end of described 41st storage capacitor is with described The electrode input end of the DC side of inverter circuit connects, the other end of described 41st storage capacitor and described inverter circuit The negative input of DC side connects, and the negative input ground connection of the DC side of described inverter circuit, described discharge circuit includes The control of discharge unit in parallel with described 41st storage capacitor and discharge paths, described control of discharge unit includes the 40th One resistance, the 42nd resistance, the 44th resistance, the 42nd electric capacity and the 41st audion, described discharge paths bag Including the 45th discharge resistance and the 42nd metal-oxide-semiconductor, the base stage of described 41st audion is by described 41st electricity Resistance connects the power supply signal outfan of described inverter circuit, and the colelctor electrode of described 41st audion is respectively with the described 40th One end of one end of two resistance, one end of the 44th resistance and the 42nd electric capacity connects, described 42nd resistance another One end is connected with the electrode input end of the DC side of described inverter circuit, the emitter stage and the 40th of described 41st audion The equal ground connection of the other end of four resistance, the grid of described 42nd metal-oxide-semiconductor is connected with the other end of described 42nd electric capacity, institute The drain electrode stating the 42nd metal-oxide-semiconductor is inputted by the positive pole of described 45th discharge resistance with the DC side of described inverter circuit End connects, the source ground of described 42nd metal-oxide-semiconductor.
The solar control system with charging and discharging function the most according to claim 1, it is characterised in that described in put Electric control unit also includes that the 43rd resistance, the emitter stage of described 41st audion are connect by described 43rd resistance Ground.
The solar control system with charging and discharging function the most according to claim 2, it is characterised in that described in put Electric control unit also includes the 43rd electric capacity, described 43rd electric capacity and described 43rd resistor coupled in parallel.
4. according to the solar control system with charging and discharging function described in claims 1 to 3 any one, its feature Being, described discharge paths also includes the 46th resistance, and the source electrode of described 42nd metal-oxide-semiconductor is by described 46th electricity Resistance ground connection.
The solar control system with charging and discharging function the most according to claim 4, it is characterised in that described 41 audions are NPN type triode.
The solar control system with charging and discharging function the most according to claim 4, it is characterised in that described 42 metal-oxide-semiconductors are N-channel MOS pipe.
CN201610727182.1A 2016-08-25 2016-08-25 There is the solar control system of charging and discharging function CN106300610A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102005798A (en) * 2010-12-13 2011-04-06 山东电力集团公司泰安供电公司 Solar charging circuit
CN202957763U (en) * 2012-10-26 2013-05-29 比亚迪股份有限公司 Discharge circuit for inverter
CN205195394U (en) * 2015-04-28 2016-04-27 周磊 Solar air conditioning system with lightning protection solar control ware

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102005798A (en) * 2010-12-13 2011-04-06 山东电力集团公司泰安供电公司 Solar charging circuit
CN202957763U (en) * 2012-10-26 2013-05-29 比亚迪股份有限公司 Discharge circuit for inverter
CN205195394U (en) * 2015-04-28 2016-04-27 周磊 Solar air conditioning system with lightning protection solar control ware

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