The utility model is the divisional application that applicant is " 201520264612.1 " in the number of patent application of proposition on 04 28th, 2015, name is called the Chinese utility model patent application of " a kind of photovoltaic controller of photovoltaic using electricity system ", and its full content is incorporated among the application.
Utility model content
For the defect that prior art exists, the object of the utility model embodiment is to improve photovoltaic using electricity system or subsystem, so that the performance of improving product at least in one aspect.
For solving above technical problem, the utility model embodiment provides a kind of photovoltaic using electricity system being convenient to LED lamp fine light distribution, this photovoltaic using electricity system comprises photovoltaic cell, photovoltaic controller, storage battery, inverter circuit and the LED lamp as DC load and the transducer air conditioning as AC load, photovoltaic controller has charging circuit, control circuit, discharge circuit: charging circuit one termination photovoltaic cell, another termination storage battery; Control circuit divides three tunnels to connect charging circuit, discharge circuit and storage battery respectively; Discharge circuit one termination storage battery, the other end divides two-way to export, and wherein a road exports and is connected to LED lamp, and another road exports and is connected to transducer air conditioning through inverter circuit; LED lamp comprises lampshade and is arranged on the spherical luminosity scale on lampshade, and this luminosity scale comprises the substrate that flexible printed circuit board curves, and the extrados of this substrate evenly assembles LED light source; Substrate arranged outside has reflector, is provided with cellular reflector above this reflector; Mutual cutting in the arc-shaped between adjacent reflector, and in formation crosspoint, rim of a cup place; Each reflector is made up of the plastics being provided with electrodeposited coating, wherein the bottom of each reflector embedded with LED light source respectively.
Wherein, photovoltaic controller has lightning protection circuit, and this lightning protection circuit is lightning protection inductance, and described lightning protection inductance is connected with storage battery.
Compared with prior art, the utility model embodiment is improved photovoltaic using electricity system or subsystem, effectively can improve properties of product, there is environmental protection, economy, the advantage such as easy to use: (1) adopts film photovoltaic cell, lightweight, efficient, high-specific-power and consumptive material is few; (2) photovoltaic controller can effectively lightning protection, improves system safety performance; (3) storage battery can ensure again the activity of storage battery while carrying out charging, and avoids storage battery and deposits, thus extend the life-span of storage battery largely; (4) the transducer air conditioning inverter circuit of AC load controls power tube by pwm signal, and structure is simple, better performances; (5) the LED lamp fine light distribution of DC load, good illumination effect.
Embodiment
In order to understand know-why and the course of work of the utility model embodiment better, come to be described in detail the utility model further below in conjunction with drawings and the specific embodiments.
See Fig. 1, the theory diagram of the utility model photovoltaic using electricity system is shown.This photovoltaic using electricity system (hereinafter referred to as system) comprises photovoltaic cell 100, photovoltaic controller 200, storage battery 300, inverter circuit 500 and DC load 400 and AC load 600, controller has charging circuit 210, discharge circuit 230 and control circuit 220: charging circuit 210 1 termination connects photovoltaic cell 100, another termination storage battery 300; Inverter circuit 500 1 termination storage battery, a road of the other end is connected to DC load (being LED lamp in the present embodiment) 400, and another road is connected to AC load (being transducer air conditioning in the present embodiment) 600 through inverter circuit 500; Control circuit divides three tunnels to connect charging circuit, discharge circuit and storage battery respectively.
In Fig. 1, the core of film photovoltaic cell 100 native system, its effect is that the radianting capacity of the sun is converted to electric energy, or is sent in storage battery and stores, or promotes DC load 400 or AC load 600 works.The effect of controller 200 is the operating states controlling whole system, and storage battery is played to the effect of additives for overcharge protection, over.The effect of storage battery 300 is the electrical power storage sent by photovoltaic cell when there being illumination, and it's time to needs to discharge again.LED lamp transducer air conditioning, as DC load, meets the lighting demand of user when needed; Transducer air conditioning, as AC load, can carry out speed governing easily.
The present embodiment includes but are not limited to following characteristics: (1) adopts film photovoltaic cell 100, contributes to lightweight, efficient, high-specific-power and consumptive material is few; (2) controller 200 can effectively lightning protection, improves system safety performance; (3) storage battery 300 is under the prerequisite of not losing photovoltaic switching energy, improves the charge efficiency of batteries and the efficiency of actual of photo-voltaic power supply, extends the useful life of batteries; (4) transducer air conditioning inverter circuit controls power tube by pwm signal, and structure is simple, better performances; (5) the LED lamp fine light distribution of DC load, good illumination effect.Below be described for each several part further.
See Fig. 2, the structural representation of the utility model film photovoltaic cell is shown.This film photovoltaic cell 100 comprises the first electro-conductive glass substrate 110, deposit absorbent layer 120, resilient coating 130, conductive silver glue 140 and the second electro-conductive glass substrate 150, wherein: the first electro-conductive glass substrate 110, deposit absorbent layer 120, resilient coating 130, conductive silver glue 140 and the second electro-conductive glass substrate 150 from top to bottom set gradually; Extraction electrode (scheming not shown) in first electro-conductive glass substrate 110 and the second electro-conductive glass substrate 150, be generally that the first electro-conductive glass substrate 110 draws positive electrode above, the second electro-conductive glass substrate 150 draws negative electrode above.
In Fig. 2, the specification of above-mentioned each layer can be: the length of the first electro-conductive glass substrate 110, second electro-conductive glass substrate 150 is 40mm, and width is 15mm, and thickness is 3mm; Deposit absorbent layer 120 is made for semiconductor nano material, and length is 30mm, and width is 15mm, and thickness is 2 × 10
-3mm; Resilient coating 130 is In
2s
3material is made, and length is 25mm, and width is 15mm, and thickness is 4 × 10
-3mm; The length of conductive silver glue 140 is 20mm, and width is 15mm, and thickness is 2 × 10
-3mm.Setting like this, material consumption is few, manufactures energy consumption low, and has excellent effect at the aspect of performance such as voltage improving battery.
See Fig. 3, the schematic block circuit diagram of the utility model controller is shown.This controller 200 comprises charging circuit 210, discharge circuit 230, control circuit 220 and lightning protection circuit 240, and charging circuit 210, discharge circuit 230 and storage battery 300 are in parallel, and lightning protection circuit 240 and storage battery 300 are connected.Owing to adding lightning protection circuit 240, the thunder-strike current flowing through storage battery 300 greatly reduces.
Lightning protection circuit 240 in the present embodiment is specially lightning protection inductance, and the thunder-strike current flowing through storage battery 300 after adding this lightning protection inductance greatly reduces; Meanwhile, the induction reactance of this lightning protection inductance much larger than accumulator internal resistance, thus at storage battery 300 two ends a point residual voltage also greatly reduce, also enhance the lightning protection capability of system like this.In addition, also can to connect respectively lightning protection inductance in charging circuit 210, discharge circuit 230, to improve lightning protection capability further.
See Fig. 4, the schematic block circuit diagram of the utility model storage battery is shown.This storage battery 300 comprises accumulator body 310, battery management module 320, data/address bus 330, auxiliary power supply bus 350 and auxiliary charging control line 340, and wherein the positive pole of accumulator body 310 is connected with battery management module 320 respectively with negative pole.Further illustrate as follows.
In Fig. 4, this battery management module 320 comprises the detection control unit 321 be connected respectively with the positive pole of accumulator body 310 and negative pole and the supplemental charging unit 322 be connected respectively with negative pole with the positive pole of accumulator body 310, and detection control unit 201 is connected with supplemental charging unit 202; Data/address bus 330 is connected with detection control unit 321; Auxiliary power supply bus 350 is connected with supplemental charging unit 322; Auxiliary charging control line 340 is connected with the output of detection control unit 321; Detection control unit 321, for detecting the running status of accumulator body 310 in real time, when the real-time voltage of accumulator body 310 is less than threshold voltage, is charged by auxiliary power supply bus 350 pairs of accumulator bodies 310 by supplemental charging unit 322.
In the present embodiment, detection control unit 321 can detect the state of accumulator body 310, and carry out discharge and recharge operation to this accumulator body 310 under the coordinative role of supplemental charging unit 322, thus storage battery entirety is made all to remain on desirable balance of voltage state.Storage battery so both can be made to keep active, the state of the balance of voltage can have been reached again, and be unlikely to occur to overcharge or the state of charge less, which thereby enhance the life-span of storage battery.
See Fig. 5, the inverter circuit of the utility model transducer air conditioning is shown.This inverter circuit 500 comprises power tube driving chip, and this power tube driving chip is connected to microcontroller circuit (MCU/DSP), so that the pulse width modulating signal exported according to microcontroller circuit, drives corresponding power tube alternate conduction and shutoff.Concrete, described inverter circuit 500 comprises six power tube Q1 ~ Q6, and these six power tubes are divided into three groups, and every group power controls a phase winding of frequency converting air-conditioner compressor motor.
The concrete connected mode of each power tube is: the source electrode of power tube Q1, Q2, Q3 connects one end of DC power supply jointly, the drain electrode of power tube Q4, Q5, Q6 connects the other end of DC power supply jointly, the tie point of the drain electrode of power tube Q1 and the source electrode of power tube Q4 connects the U phase terminal of motor, the tie point of the drain electrode of power tube Q2 and the source electrode of power tube Q5 connects the V phase terminal of motor, and the drain electrode of power tube Q3 and the source electrode tie point of power tube Q6 connect the W phase terminal of frequency converting air-conditioner compressor motor; The grid of power tube Q1, Q2, Q3, Q4, Q5, Q6 connects an output of power tube driving chip respectively, and each input of this power tube driving chip controls by output pulse width conditioning signal PWM1, PWM2, PWM3, PWM4, PWM5, PWM6 Zhong mono-tunnel of microcontroller circuit respectively.These six power tube Q1 ~ Q6 source electrode and drain electrode between corresponding access diode D1 ~ D6.
During start, microprocessor produces corresponding 6 road pulse width modulating signals according to the compressor electric motor rotating speed of setting, i.e. drive singal PWM1 ~ PWM6; 6 power tube (MOSFET or IGBT) Q1 ~ Q6 of inverter 500 are driven by power tube driving chip; The alternate conduction of these power tubes and shutoff, produce three-phase modulations waveform, output voltage is adjustable, the three-phase alternating current of changeable frequency, outputs to U, V, W terminals of frequency converting air-conditioner compressor motor winding, thus realizes the stepless frequency control of frequency converting air-conditioner compressor motor.
See Fig. 6-Fig. 7, the structural representation of the utility model LED lamp is shown.This LED lamp has lampshade and is arranged on the spherical luminosity scale on lampshade, this luminosity scale comprises the spherical substrate 410 that flexible printed circuit board curves, the extrados of this substrate 410 evenly assembles the LED light source 420 of small-power (rated power is at below 1W), make the light of luminosity scale can cover whole illumination classification, light is kept rationally to disperse, avoid the excessive overlap of illumination classification, make the hot spot in effective irradiation area keep the highest illuminance and illumination.
As Figure 6-Figure 7, substrate 410 arranged outside has reflector 430, is provided with cellular reflector 440, is made up of the plastics being provided with electrodeposited coating above it, and its inwall can play good reflex to light source; Wherein, the bottom embedded with LED light source 420 respectively of reflector 440, thus realize the effective optically focused to LED light source 420.
Especially, mutual cutting in the arc-shaped between adjacent reflector 440, and in formation crosspoint, rim of a cup place 450.Like this, by changing the size of the degree of depth of reflector 440, wall of cup curvature, rim of a cup aperture, the shape of adjustable reflector 440, the LED light source 420 be installed on bottom reflector 440 is guided to change rising angle, to be irradiated to predetermined irradiation area, reach the object of fine light distribution.
Although the utility model with preferred embodiment openly as above; but it is not for limiting the utility model; any those skilled in the art are not departing from spirit and scope of the present utility model; can make possible variation and amendment, the scope that therefore protection range of the present utility model should define with the utility model claim is as the criterion.