CN207098735U - A kind of off-network controller for solar - Google Patents

Abstract

The utility model provides a kind of off-network controller for solar, including main control chip, sample circuit, power circuit, off-network solar energy lithium cell activated circuit；Power circuit is used to provide electric power to main control chip；Power circuit is solar panels and lithium battery duplicate supply；Sample circuit is transmitted to main control chip for gathering lithium battery side power supply signal；Main control chip is used to judge whether to send activation signal according to lithium battery side power supply signal；Activation signal control off-network solar energy lithium cell activated circuit sends the lithium battery of sensitizing pulse activation Cross prevention.The utility model in the case of access solar energy input, detects reverse connection of accumulator, can also reacted rapidly, cut-out charge circuit is safe and reliable using the lithium battery state sample mode for being different from controller in the market.The utility model is designed reasonably, it is skillfully constructed, solves the problems, such as lithium battery activation, effectively improves the lithium battery service life of off-network solar energy system, avoid the unnecessary wasting of resources.

Description

A kind of off-network controller for solar

Technical field

It the utility model is related to controller for solar, more particularly to a kind of off-network controller for solar.

Background technology

Off-network controller for solar in the market is most of without lithium cell charging function, small part off-network band lithium electricity The controller of pond charge function can not activate the lithium battery after Cross prevention.Controller for solar in the market is with plumbic acid Based on battery charging, even if giving lithium cell charging, also assume that in the mechanism for occurring without lithium battery triggering Cross prevention to carry out Work.It is such the disadvantage is that, but there is user for a long time without charging, electric quantity of lithium battery is consumed to Cross prevention, this When lithium battery itself is locked, the external world can not carry out charge and discharge electric treatment to it, so then for user because it does not have lithium Battery activated function causes unusual inconvenience, while is likely to cause waste, and lithium battery can not be recovered by not activating function Discharge and recharge, these batteries may be considered as having failed and being dropped.

In addition, in the market can have battery counnter attack connection function to the controller for solar of lithium cell charging, But inputted on condition that solar energy can not be connected first, when solar energy inputs access controller for solar, reversal connection is now accessed again Lithium battery can cause the damage of controller, so when most of controller is installed, it is suitable all wiring to be provided on specification Sequence, battery is first connect, then connect load end, then connect solar energy input, it is so cumbersome for unfamiliar wiring person, easily go out Existing wrong and protection is not in place.

Utility model content

For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of off-network controller for solar, The utility model monitors the state of lithium battery by governor circuit and lithium battery sample circuit in real time, according to the data customization of monitoring Suitable sensitizing pulse, guarantee reliably and securely activate.

The utility model provides a kind of off-network controller for solar, including main control chip, sample circuit, power circuit, from Net solar energy lithium cell activated circuit；Described power circuit is used to provide electric power to described main control chip；Described power supply Circuit is solar panels and lithium battery duplicate supply；Described sample circuit is transmitted to described for gathering lithium battery side power supply signal Main control chip；Described main control chip is used to judge whether to send activation signal according to described lithium battery side power supply signal； The described off-network solar energy lithium cell activated circuit of described activation signal control sends the lithium of sensitizing pulse activation Cross prevention Battery.

Further, described main control chip is additionally operable to judge whether to send according to described lithium battery side power supply signal to cut Break signal；On-off circuit open circuit in the described off-network solar energy lithium cell activated circuit of described shutoff signal control, will be from Net controller for solar is isolated with lithium battery.

Further, described sample circuit includes resistance R75, resistance R77, resistance R81, electric capacity C35, double diode D19；Described resistance R75 connection lithium batteries side；Described resistance R77 connection reference voltage Vs_CC；Described resistance R81 with it is described Electric capacity C35 one end earth, the described resistance R75 of other end access and described resistance R77；Described resistance R77 with Double diode D19 in described electric capacity C35 series shunt described in parallel connection；Between described resistance R77 and described electric capacity C35 For sampling end；The described main control chip of described sampling end connection, described main control chip is 32 STM single-chip microcomputers.

Further, described power circuit includes diode D7, diode D9, voltage-regulator diode D10, resistance R34, electricity Hinder R35, resistance R40, resistance R44, electric capacity C11, electric capacity C12, electric capacity C13, electric capacity C14, electric capacity C15, pressure regulation chip U3, three poles Pipe Q13；Described triode Q13 is NPN type；The leading-out terminal of described diode D7 positive pole access solar panels；Described Resistance R34 is connected with described resistance R35 is connected to described diode D7 negative pole；Described diode D9 positive pole access lithium The leading-out terminal of battery；Described diode D9 negative pole is connected to described resistance R40 altogether with described resistance R35；Described electricity Hold C11 one end ground connection in parallel with described electric capacity C13, another C for being connected to described resistance R40 and described triode Q13 Between pole；Described triode Q13 BC interpolars are parallel with described resistance R44；Described triode Q13 B poles and ground connection Described voltage-regulator diode D10 is connected between end；The B of triode Q13 described in described voltage-regulator diode D10 negative pole access Pole；The input VIN of pressure regulation chip U3 described in described triode Q13 E poles access, described pressure regulation chip U3 output Hold the described main control chip of VOUT accesses；Described pressure regulation chip U3 earth terminal GND ground connection；Described electric capacity C14 with it is described Electric capacity C15 be coupled between described output end VOUT and ground connection；Described electric capacity C12 is connected to described input Between VIN and ground connection.

Further, in addition to master control reset circuit, master control filter circuit, master control programming circuitry；Described master control resets Circuit includes resistance R73, electric capacity C32；Described resistance R73 connects with described electric capacity C32 to be connected on described main control chip Reference voltage V is provided_CCPin and ground connection between；Leading-out terminal between described resistance R73 and described electric capacity C32 is connected to The reset pin of described main control chip；Described master control filter circuit includes electric capacity C33；Described electric capacity C33 series connection is connected to Reference voltage V is provided on described main control chip_CCPin and ground connection between；Described master control programming circuitry includes programming core Piece；Described programming chip is connected with described main control chip；Described programming chip performs the burning to described main control chip Write.

Further, off-network solar energy lithium cell activated circuit includes on-off circuit, drive circuit；Described drive circuit The described on-off circuit break-make of driving；Described on-off circuit both ends connect solar panels leading-out terminal and lithium battery outlet respectively End；Described drive circuit access controller for solar main control chip control signal；Controller for solar main control chip sends sharp Signal living, described on-off circuit interval break-make is driven through described drive circuit, sends sensitizing pulse to lithium battery.

Further, described on-off circuit includes first switch circuit, second switch circuit；Described drive circuit bag Include the first drive circuit, the second drive circuit；

Described first switch circuit includes switching tube Q1, switching tube Q4；Described switching tube Q1, switching tube Q4 is parallel to Between solar panels leading-out terminal and described second switch circuit；Described switching tube Q1 and described switching tube Q4 S levels with Solar panels leading-out terminal connects, and described switching tube Q1 and described switching tube Q4 D levels connect with described second switch circuit Connect；

Described second switch circuit includes switching tube Q2, switching tube Q3；Described switching tube Q2, switching tube Q3 is parallel to Between lithium battery leading-out terminal and described first switch circuit；Described switching tube Q2 and described switching tube Q3 S levels and lithium Battery leading-out terminal is connected, and described switching tube Q2 is connected with described switching tube Q3 D levels with described first switch circuit；

The described first switch circuit of described the first drive circuit driving；The first described drive circuit includes diode D1, diode D2, diode D6, triode Q10, triode Q12, resistance R26, resistance R27, resistance R20, resistance R24, resistance R30, resistance R32, resistance R33；Described triode Q10 is positive-negative-positive, and described triode Q12 is NPN type；Two described poles The described switching tube Q1 of pipe D1 accesses in parallel with described diode D2 negative pole and described switching tube Q4 both ends；Described two Pole pipe D1 positive pole is connected with described resistance R26；Described diode D2 positive pole and described resistance R27；Described electricity Hinder the R26 triode Q10s described with described resistance R27 accesses C poles；Described in described triode Q10 BE interpolar parallel connections Resistance R20；The positive pole of diode D6 described in described triode Q10 B poles connection；Described diode D6 negative pole connects Meet described resistance R24；Described resistance R24 is connected with described triode Q12 C poles；Described triode Q12 E poles Resistance R33 is connected between ground connection；Described triode Q12 BE interpolars are parallel with resistance R32；Described triode Q12 B Resistance R30 is connected between pole and main control chip；

The described second switch circuit of described the second drive circuit driving；The second described drive circuit includes diode D5, triode Q6, triode Q11, resistance R94, resistance R17, resistance R22, resistance R25, resistance R28, resistance R31；Described Triode Q6 is positive-negative-positive, and described triode Q11 is NPN type；Described resistance R94 be respectively connected to described switching tube Q2 with Described switching tube Q3 G poles；The described triode Q6 of described R94 other ends access C poles；Described triode Q6 BE Resistance R17 described in interpolar parallel connection；The positive pole of diode D5 described in described triode Q6 B poles connection；Two described poles Resistance R22 described in pipe D5 negative pole connection；Described resistance R22 is connected with described triode Q11 C poles；Described three Resistance R31 is connected between pole pipe Q11 E poles and ground connection；Described triode Q11 BE interpolars are parallel with resistance R28；Described Resistance R25 is connected between triode Q11 B poles and main control chip.

Further, the first described drive circuit also includes triode group Q9；Described first switch circuit also includes Resistance R3, resistance R5, resistance R8, resistance R12；Described triode group Q9 is the NPN type triode of two common B poles；Described three Two E poles of pole pipe group connect described diode D1 and described diode D2 positive pole respectively；Two C of described triode group Pole connects described resistance R26 and described resistance R27 respectively；Resistance described in described switching tube Q1 GS interpolar parallel connections Resistance R8 described in R3, described switching tube Q4 GS interpolar parallel connections；Described resistance R5 is connected to described switching tube Q1 G Pole；Described resistance R12 is connected to described switching tube Q4 G poles；Described resistance R5, resistance R12, resistance R27 are in parallel.

Further, the second described drive circuit also includes triode Q50, triode Q51；Described triode Q50 For NPN type, described triode Q51 is positive-negative-positive；Described second switch circuit also include resistance R1, resistance R4, resistance R9, Resistance R10；The described triode Q50 of described resistance R94 connections and described triode Q51 B poles；Described triode Q50 and the common E poles of described triode Q51；Described in described triode Q50 E poles are connected with described switching tube Q2 G interpolars Resistance R4；Described triode Q51 E poles are connected described resistance R10 with described switching tube Q3 G interpolars；Described Resistance R1 described in switching tube Q2 GS interpolar parallel connections；Resistance R9 described in described switching tube Q3 GS interpolar parallel connections.

Further, described switching tube Q1, described switching tube Q2, described switching tube Q3, described switching tube Q4 DS interpolars be parallel with voltage-regulator diode；Switching tube Q1, described switch described in the positive pole connection of described voltage-regulator diode Pipe Q2, described switching tube Q3, described switching tube Q4 D poles；Switch described in the negative pole connection of described voltage-regulator diode Pipe Q1, described switching tube Q2, described switching tube Q3, described switching tube Q4 S poles.

Compared with prior art, the beneficial effects of the utility model are：

The utility model provides a kind of off-network controller for solar, including main control chip, sample circuit, power circuit, from Net solar energy lithium cell activated circuit；Power circuit is used to provide electric power to main control chip；Power circuit is solar panels and lithium Battery duplicate supply；Sample circuit is transmitted to main control chip for gathering lithium battery side power supply signal；Main control chip is used for according to lithium Battery side power supply signal judges whether to send activation signal；Activation signal control off-network solar energy lithium cell activated circuit sends sharp The lithium battery of pulse activation Cross prevention living.The utility model is adopted using the lithium battery state for being different from controller in the market Sample loading mode, it is simple, efficient, the various states of lithium battery can be easily distinguished, in the case of access solar energy input, inspection Reverse connection of accumulator is measured, can also be reacted rapidly, cuts off charge circuit, it is safe and reliable.The utility model is designed reasonably, design are skilful It is wonderful, solve the problems, such as lithium battery activation, effectively improve the lithium battery service life of off-network solar energy system, avoid unnecessary resource Waste.

Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model Art means, and being practiced according to the content of specification, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below Describe in detail bright as after.Specific embodiment of the present utility model is shown in detail by following examples and its accompanying drawing.

Brief description of the drawings

Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application, Schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model improper Limit.In the accompanying drawings：

Fig. 1 is off-network solar energy activation method for lithium battery flow chart of the present utility model；

Fig. 2 is off-network solar energy lithium battery reversal connection controller power-off protection flow chart of steps of the present utility model；

Fig. 3 is the power circuit diagram of the off-network controller for solar in an embodiment of the present utility model；

Fig. 4 is the sample circuit figure of the off-network controller for solar in an embodiment of the present utility model；

Fig. 5 be the main control chip of off-network controller for solar in an embodiment of the present utility model, master control reset circuit, The pin and circuit diagram of master control filter circuit, master control programming circuitry；

Fig. 6 is the off-network solar energy lithium cell activated circuit figure in an embodiment of the present utility model.

Embodiment

Below, with reference to accompanying drawing and embodiment, the utility model is described further, it is necessary to explanation is, On the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new Embodiment.

Off-network controller for solar, including main control chip, sample circuit, power circuit, off-network solar energy lithium battery activation Circuit；Power circuit is used to provide electric power to main control chip；Power circuit is solar panels and lithium battery duplicate supply；Sample circuit Transmitted for gathering lithium battery (or battery) side power supply signal to main control chip；Main control chip is used for according to lithium battery side power supply Signal judges whether to send activation signal；Activation signal control off-network solar energy lithium cell activated circuit sends sensitizing pulse activation The lithium battery of Cross prevention.

In one embodiment, main control chip is additionally operable to judge whether to send shutoff signal according to lithium battery side power supply signal； On-off circuit open circuit in shutoff signal control off-network solar energy lithium cell activated circuit, by off-network controller for solar and lithium electricity Pond isolates.Specifically, as shown in figure 5, main control chip is 32 STM single-chip microcomputers, off-network controller for solar is also answered including master control Position circuit, master control filter circuit, master control programming circuitry；Master control reset circuit includes resistance R73, electric capacity C32；Resistance R73 and electricity Appearance C32 series connection, which is connected on main control chip, provides reference voltage V_CCPin and ground connection between；Between resistance R73 and electric capacity C32 Leading-out terminal is connected to the reset pin of main control chip；Master control filter circuit includes electric capacity C33；Electric capacity C33 series connection is connected to master control core Reference voltage V is provided on piece_CCPin and ground connection between；Master control programming circuitry includes programming chip；Programming chip and master control core Piece connects；Programming chip performs the programming to main control chip.

In one embodiment, as shown in figure 3, power circuit includes diode D7, diode D9, voltage-regulator diode D10, electricity Hinder R34, resistance R35, resistance R40, resistance R44, electric capacity C11, electric capacity C12, electric capacity C13, electric capacity C14, electric capacity C15, pressure regulation core Piece U3, triode Q13；Triode Q13 is NPN type；The leading-out terminal of diode D7 positive pole access solar panels；Resistance R34 with Resistance R35, which connects, is connected to diode D7 negative pole；The leading-out terminal of diode D9 positive pole access lithium battery；Diode D9 negative pole Resistance R40 is connected to altogether with resistance R35；Electric capacity C11 one end ground connection in parallel with electric capacity C13 is another to be connected to resistance R40 and triode Between Q13 C poles；Triode Q13 BC interpolars are parallel with resistance R44；Voltage stabilizing is connected between triode Q13 B poles and earth terminal Diode D10；Voltage-regulator diode D10 negative pole access triode Q13 B poles；Triode Q13 E poles access pressure regulation chip U3 Input VIN, pressure regulation chip U3 output end VOUT access main control chip；Pressure regulation chip U3 earth terminal GND ground connection；Electric capacity C14 and electric capacity C15 is coupled between output end VOUT and ground connection；Electric capacity C12 is connected between input VIN and ground connection.Its In, diode D7, diode D9 are reverse-filling diode, and A is terminated into solar panels leading-out terminal, and B is terminated into lithium battery leading-out terminal, Solar panels and lithium battery can all power to main control chip, and resistance R34, resistance R35 are in order to which supply voltage is based on lithium battery； In one embodiment, C point output voltages 12V, V_CCFor 3.3V.

Off-network solar energy activation method for lithium battery, as shown in figure 1, comprising the following steps：

State samples, controller for solar collection lithium battery side electrical potential information；Specifically, state sampling is using sampling electricity Road, in one embodiment, as shown in figure 4, sample circuit includes resistance R75, resistance R77, resistance R81, electric capacity C35, double two poles Pipe D19；Resistance R75 connection lithium batteries side；Resistance R77 connection reference voltage Vs_CC；Resistance R81 and electric capacity C35 one end earth, The other end accesses resistance R75 and resistance R77；Resistance R77 double diode D19s in parallel with electric capacity C35 series shunt；Resistance It is sampling end E points between R77 and electric capacity C35；Sampling end E points connect main control chip；Wherein reference voltage V_CCIt is used to lift with resistance R77 High circuit voltage, using voltage superposition theorem, the sampled voltage of sampling end E points can all be superimposed with reference voltage V_CCValue, and with base Quasi- voltage V_CCIt is worth and is sampled for normal voltage, wherein sample frequency is 8KHz-20KHz.

Condition adjudgement, controller for solar judge whether lithium battery state is Cross prevention according to lithium battery side electrical potential information State, if so, then exporting sensitizing pulse to lithium battery；Charged normal if it is not, then performing lithium battery.Wherein, lithium battery, which is crossed, puts guarantor During shield state, lithium battery voluntarily can disconnect with link circuit, now, as shown in Fig. 2 lithium battery leading-out terminal B points almost detect not To voltage, voltage V on the basis of the sampled voltage of sampling end E points_CCCorresponding magnitude of voltage when being worth independent role, by sampled voltage AD conversion, judge that lithium battery is in Cross prevention state, main control chip sends activation signal to off-network solar energy lithium battery Active circuit, control active circuit output sensitizing pulse.It should be noted that during lithium battery normal work, lithium battery leading-out terminal B Point is lithium battery normal work output voltage, voltage V on the basis of the sampled voltage of sampling end E points_CCIt is defeated with lithium battery normal work Corresponding normal operational voltage value when going out the common superposition of voltage, now, lithium battery normal work output voltage are on the occasion of that is, Corresponding normal operational voltage value is significantly greater than reference voltage V_CCCorresponding magnitude of voltage when being worth independent role, the AD of sampled voltage Conversion, can be with significant difference Cross prevention state and lithium battery reversal connection state.

In one embodiment, as shown in fig. 6, off-network solar energy lithium cell activated circuit, including on-off circuit, driving Circuit；Drive circuit driving switch connecting and disconnecting of the circuit；On-off circuit both ends connect solar panels leading-out terminal and lithium battery outlet respectively End；Drive circuit accesses controller for solar main control chip control signal；Controller for solar main control chip sends activation signal, Through drive circuit driving switch circuit interval break-make, sensitizing pulse is sent to lithium battery.

Specifically, on-off circuit includes first switch circuit, second switch circuit；Drive circuit includes the first driving electricity Road, the second drive circuit；Each circuit composition is discussed in detail separately below：

As shown in fig. 6, first switch circuit includes switching tube Q1, switching tube Q4；Switching tube Q1, switching tube Q4 are parallel to too Between positive energy plate leading-out terminal and second switch circuit；Switching tube Q1 is connected with switching tube Q4 S levels with solar panels leading-out terminal, is opened Pipe Q1 is closed to be connected with second switch circuit with switching tube Q4 D levels；

Second switch circuit includes switching tube Q2, switching tube Q3；Switching tube Q2, switching tube Q3 are parallel to lithium battery leading-out terminal Between first switch circuit；Switching tube Q2 is connected with switching tube Q3 S levels with lithium battery leading-out terminal, switching tube Q2 and switching tube Q3 D levels are connected with first switch circuit；

First drive circuit drives first switch circuit；First drive circuit includes diode D1, diode D2, diode D6, triode Q10, triode Q12, resistance R26, resistance R27, resistance R20, resistance R24, resistance R30, resistance R32, resistance R33；Triode Q10 is positive-negative-positive, and triode Q12 is NPN type；Diode D1 access switching tubes in parallel with diode D2 negative pole Q1 and switching tube Q4 both ends；Diode D1 positive pole is connected with resistance R26；Diode D2 positive pole and resistance R27；Resistance R26 With resistance R27 access triodes Q10 C poles；Triode Q10 BE interpolar parallel resistances R20；Triode Q10 B poles connection two Pole pipe D6 positive pole；Diode D6 negative pole connection resistance R24；Resistance R24 is connected with triode Q12 C poles；Triode Q12 E poles and ground connection between be connected with resistance R33；Triode Q12 BE interpolars are parallel with resistance R32；Triode Q12 B poles and master Control chip chamber is connected with resistance R30；

Second drive circuit drives second switch circuit；Second drive circuit includes diode D5, triode Q6, triode Q11, resistance R94, resistance R17, resistance R22, resistance R25, resistance R28, resistance R31；Triode Q6 is positive-negative-positive, triode Q11 For NPN type；Resistance R94 is respectively connected to switching tube Q2 and switching tube Q3 G poles；R94 other ends access triode Q6 C poles；Three Pole pipe Q6 BE interpolar parallel resistances R17；Triode Q6 B poles connection diode D5 positive pole；Diode D5 negative pole connection Resistance R22；Resistance R22 is connected with triode Q11 C poles；Resistance R31 is connected between triode Q11 E poles and ground connection；Three poles Pipe Q11 BE interpolars are parallel with resistance R28；Resistance R25 is connected between triode Q11 B poles and main control chip.

To provide stable circuit environment, the first drive circuit also includes triode group Q9；First switch circuit also includes Resistance R3, resistance R5, resistance R8, resistance R12；Triode group Q9 is the NPN type triode of two common B poles；Two E poles of triode group Diode D1 and diode D2 positive pole is connected respectively；Two C poles of triode group connect resistance R26 and resistance R27 respectively；Switch Pipe Q1 GS interpolars parallel resistance R3, switching tube Q4 GS interpolar parallel resistances R8；Resistance R5 is connected to switching tube Q1 G poles； Resistance R12 is connected to switching tube Q4 G poles；Resistance R5, resistance R12, resistance R27 are in parallel.

Corresponding, the second drive circuit also includes triode Q50, triode Q51；Triode Q50 is NPN type, triode Q51 is positive-negative-positive；Second switch circuit also includes resistance R1, resistance R4, resistance R9, resistance R10；Resistance R94 connection triodes Q50 and triode Q51 B poles；Triode Q50 and the common E poles of triode Q51；Triode Q50 E poles and switching tube Q2 G interpolars Connect resistance R4；Triode Q51 E poles are connected resistance R10 with switching tube Q3 G interpolars；Switching tube Q2 GS interpolars electricity in parallel Hinder R1；Switching tube Q3 GS interpolar parallel resistances R9.Now, as shown in fig. 6, active circuit after adjusted, F point current potentials at three Twice of about A points, reach good and stable circuit characteristic.

To stablize each switch tube voltage, switching tube Q1, switching tube Q2, switching tube Q3, switching tube Q4 DS interpolars are parallel with Voltage-regulator diode；The positive pole connecting valve pipe Q1 of voltage-regulator diode, switching tube Q2, switching tube Q3, switching tube Q4 D poles；Voltage stabilizing The negative pole connecting valve pipe Q1 of diode, switching tube Q2, switching tube Q3, switching tube Q4 S poles.In actual applications, off-network is too Positive energy lithium cell activated circuit is simultaneously lithium battery charging circuit, when lithium battery charges normal, switching tube Q1, switching tube Q2, is opened Pass pipe Q3, switching tube Q4 instruct according to main control chip, adjust the voltage needed for lithium cell charging each stage, this is existing skill Art, it will not be repeated here.

As shown in Fig. 6, Fig. 5, activation signal is sent by main control chip U8 PA11 pins, PA9 pins, and wherein PA11 draws Pin accesses the H points of the first drive circuit, and PA9 pins access the I points of the second drive circuit, and first is driven by the first drive circuit Switching tube Q1 and switching tube Q4 intervals break-make in on-off circuit, opening in second switch circuit is driven by the second drive circuit Pipe Q2 and switching tube Q3 intervals break-make are closed, forms the sensitizing pulse jumped along form, sensitizing pulse is transmitted to lithium battery, activation lithium electricity Pond.

As shown in figure 1, after output sensitizing pulse, in addition to step lithium battery condition monitoring, specially export sensitizing pulse Afterwards, whether monitoring lithium battery works, if it is not, then adjusting sensitizing pulse；Charged normal if so, then performing lithium battery.Implement one In example, whether worked using temperature sensor monitors lithium battery.As shown in figure 5, main control chip U8 PA4 pins, PA5 pins connect Enter two temperatures sensor signal, after activating successfully, solar panels are charged by off-network controller for solar to lithium battery, this When, temperature rise, then it is judged as activating successfully, lithium battery normal work, when temperature sensor does not detect lithium battery temperature During change, main control chip U8 adjustment activation signals, sensitizing pulse is finally set to adjust to the fixation sensitizing pulse of lithium battery, wherein, Adjusting sensitizing pulse includes pulse width adjustment, pulse frequency adjustment, impulse magnitude adjustment.

As shown in Fig. 2 also including step lithium battery reversal connection controller power-off protection, lithium battery side current potential letter is specially gathered Breath, judges whether lithium battery state is reversal connection state according to lithium battery side electrical potential information, if so, then cutting off lithium battery and controller Between connect circuit.In one embodiment, disposable lithium-battery state sampling is carried out every 100us, even in access solar energy input In the case of, lithium battery reversal connection is detected, can also be reacted rapidly, cuts off charge circuit, it is safe and reliable.As shown in figure 4, work as lithium During battery reversal connection, lithium battery leading-out terminal B points magnitude of voltage is negative value, is superimposed reference voltage V_CCAfter value, sampling end E points magnitude of voltage is almost It is zero, by the AD conversion of sampled voltage, judges that lithium battery is in reversal connection state, main control chip U8 PA11 pins, PA9 draw Human hair combing waste goes out break signal, and controlling switch pipe Q1, switching tube Q2, switching tube Q3, switching tube Q4 are all off, now off-network solar energy Controller is isolated with lithium battery, effectively prevents reversal connection lithium battery from burning circuit in off-network controller for solar.

The utility model provides a kind of off-network controller for solar, including main control chip, sample circuit, power circuit, from Net solar energy lithium cell activated circuit；Power circuit is used to provide electric power to main control chip；Power circuit is solar panels and lithium Battery duplicate supply；Sample circuit is transmitted to main control chip for gathering lithium battery side power supply signal；Main control chip is used for according to lithium Battery side power supply signal judges whether to send activation signal；Activation signal control off-network solar energy lithium cell activated circuit sends sharp The lithium battery of pulse activation Cross prevention living.The utility model is adopted using the lithium battery state for being different from controller in the market Sample loading mode, it is simple, efficient, the various states of lithium battery can be easily distinguished, in the case of access solar energy input, inspection Reverse connection of accumulator is measured, can also be reacted rapidly, cuts off charge circuit, it is safe and reliable.The utility model is designed reasonably, design are skilful It is wonderful, solve the problems, such as lithium battery activation, effectively improve the lithium battery service life of off-network solar energy system, avoid unnecessary resource Waste.

More than, preferred embodiment only of the present utility model, not make any formal limit to the utility model System；The those of ordinary skill of all industry can swimmingly implement the utility model shown in by specification accompanying drawing and above；But It is that all those skilled in the art are not being departed from the range of technical solutions of the utility model, utilizes disclosed above skill Art content and the equivalent variations of a little variation, modification and evolution made, are equivalent embodiment of the present utility model；Meanwhile All variation, modification and evolution of any equivalent variations made according to substantial technological of the present utility model to above example etc., Still fall within the protection domain of the technical solution of the utility model.

Claims (10)

1. A kind of 1. off-network controller for solar, it is characterised in that：Including main control chip, sample circuit, power circuit, the off-network sun Can lithium cell activated circuit；Described power circuit is used to provide electric power to described main control chip；Described power circuit is Solar panels and lithium battery duplicate supply；Described sample circuit is transmitted to described master control for gathering lithium battery side power supply signal Chip；Described main control chip is used to judge whether to send activation signal according to described lithium battery side power supply signal；Described The described off-network solar energy lithium cell activated circuit of activation signal control sends the lithium battery of sensitizing pulse activation Cross prevention.
2. A kind of 2. off-network controller for solar as claimed in claim 1, it is characterised in that：Described main control chip is additionally operable to root Judge whether to send shutoff signal according to described lithium battery side power supply signal；The described off-network sun of described shutoff signal control On-off circuit open circuit in energy lithium cell activated circuit, off-network controller for solar is isolated with lithium battery.
3. A kind of 3. off-network controller for solar as claimed in claim 1 or 2, it is characterised in that：Described sample circuit includes Resistance R75, resistance R77, resistance R81, electric capacity C35, double diode D19；Described resistance R75 connection lithium batteries side；Described Resistance R77 connection reference voltage Vs_CC；Described resistance R81 and described electric capacity C35 one end earth, described in other end access Resistance R75 and described resistance R77；It is double described in described resistance R77 is in parallel with described electric capacity C35 series shunt Diode D19；It is sampling end between described resistance R77 and described electric capacity C35；The described master control core of described sampling end connection Piece；Described main control chip is 32 STM single-chip microcomputers.
4. A kind of 4. off-network controller for solar as claimed in claim 1 or 2, it is characterised in that：Described power circuit includes Diode D7, diode D9, voltage-regulator diode D10, resistance R34, resistance R35, resistance R40, resistance R44, electric capacity C11, electric capacity C12, electric capacity C13, electric capacity C14, electric capacity C15, pressure regulation chip U3, triode Q13；Described triode Q13 is NPN type；It is described Diode D7 positive pole access solar panels leading-out terminal；Described resistance R34 connected with described resistance R35 be connected to it is described Diode D7 negative pole；The leading-out terminal of described diode D9 positive pole access lithium battery；Described diode D9 negative pole Described resistance R40 is connected to altogether with described resistance R35；Described electric capacity C11 one end ground connection in parallel with described electric capacity C13, It is another to be connected between described resistance R40 and described triode Q13 C poles；Described triode Q13 BC interpolars are in parallel There is described resistance R44；Described voltage-regulator diode D10 is connected between described triode Q13 B poles and earth terminal；Described The B poles of triode Q13 described in voltage-regulator diode D10 negative pole access；Tune described in described triode Q13 E poles access Press the described main control chip of chip U3 input VIN, described pressure regulation chip U3 output end VOUT accesses；Described pressure regulation Chip U3 earth terminal GND ground connection；Described electric capacity C14 and described electric capacity C15 be coupled to described output end VOUT with Between ground connection；Described electric capacity C12 is connected between described input VIN and ground connection.
5. A kind of 5. off-network controller for solar as claimed in claim 1 or 2, it is characterised in that：Also include master control reset circuit, Master control filter circuit, master control programming circuitry；Described master control reset circuit includes resistance R73, electric capacity C32；Described resistance R73 Connect to be connected on described main control chip with described electric capacity C32 and reference voltage V is provided_CCPin and ground connection between；Described Leading-out terminal between resistance R73 and described electric capacity C32 is connected to the reset pin of described main control chip；Described master control filter Wave circuit includes electric capacity C33；Described electric capacity C33 series connection, which is connected on described main control chip, provides reference voltage V_CCPin with Between ground connection；Described master control programming circuitry includes programming chip；Described programming chip is connected with described main control chip；Institute The programming chip stated performs the programming to described main control chip.
6. A kind of 6. off-network controller for solar as claimed in claim 1 or 2, it is characterised in that：Described off-network solar energy lithium Battery activated circuit includes on-off circuit, drive circuit；The described on-off circuit break-make of described drive circuit driving；Described On-off circuit both ends connect solar panels leading-out terminal and lithium battery leading-out terminal respectively；Described drive circuit access solar control Device main control chip control signal；Controller for solar main control chip sends activation signal, through described in described drive circuit driving On-off circuit interval break-make, send sensitizing pulse to lithium battery.
7. A kind of 7. off-network controller for solar as claimed in claim 6, it is characterised in that：Described on-off circuit includes first On-off circuit, second switch circuit；Described drive circuit includes the first drive circuit, the second drive circuit；

   Described first switch circuit includes switching tube Q1, switching tube Q4；Described switching tube Q1, switching tube Q4 is parallel to the sun Can be between plate leading-out terminal and described second switch circuit；Described switching tube Q1 and described switching tube Q4 S levels and the sun The leading-out terminal connection of energy plate, described switching tube Q1 are connected with described switching tube Q4 D levels with described second switch circuit；

   Described second switch circuit includes switching tube Q2, switching tube Q3；Described switching tube Q2, switching tube Q3 is parallel to lithium electricity Between pond leading-out terminal and described first switch circuit；Described switching tube Q2 and described switching tube Q3 S levels and lithium battery Leading-out terminal is connected, and described switching tube Q2 is connected with described switching tube Q3 D levels with described first switch circuit；

   The described first switch circuit of described the first drive circuit driving；The first described drive circuit include diode D1, Diode D2, diode D6, triode Q10, triode Q12, resistance R26, resistance R27, resistance R20, resistance R24, resistance R30, resistance R32, resistance R33；Described triode Q10 is positive-negative-positive, and described triode Q12 is NPN type；Two described poles The described switching tube Q1 of pipe D1 accesses in parallel with described diode D2 negative pole and described switching tube Q4 both ends；Described two Pole pipe D1 positive pole is connected with described resistance R26；Described diode D2 positive pole and described resistance R27；Described electricity Hinder the R26 triode Q10s described with described resistance R27 accesses C poles；Described in described triode Q10 BE interpolar parallel connections Resistance R20；The positive pole of diode D6 described in described triode Q10 B poles connection；Described diode D6 negative pole connects Meet described resistance R24；Described resistance R24 is connected with described triode Q12 C poles；Described triode Q12 E poles Resistance R33 is connected between ground connection；Described triode Q12 BE interpolars are parallel with resistance R32；Described triode Q12 B Resistance R30 is connected between pole and main control chip；

   The described second switch circuit of described the second drive circuit driving；The second described drive circuit include diode D5, Triode Q6, triode Q11, resistance R94, resistance R17, resistance R22, resistance R25, resistance R28, resistance R31；Three described poles Pipe Q6 is positive-negative-positive, and described triode Q11 is NPN type；Described resistance R94 be respectively connected to described switching tube Q2 with it is described Switching tube Q3 G poles；The described triode Q6 of described R94 other ends access C poles；Described triode Q6 BE interpolars Resistance R17 described in parallel connection；The positive pole of diode D5 described in described triode Q6 B poles connection；Described diode D5 The described resistance R22 of negative pole connection；Described resistance R22 is connected with described triode Q11 C poles；Described triode Resistance R31 is connected between Q11 E poles and ground connection；Described triode Q11 BE interpolars are parallel with resistance R28；Three described poles Resistance R25 is connected between pipe Q11 B poles and main control chip.
8. A kind of 8. off-network controller for solar as claimed in claim 7, it is characterised in that：The first described drive circuit also wraps Include triode group Q9；Described first switch circuit also includes resistance R3, resistance R5, resistance R8, resistance R12；Three described poles Pipe group Q9 is the NPN type triode of two common B poles；Two E poles of described triode group connect described diode D1 and institute respectively The diode D2 stated positive pole；Two C poles of described triode group connect described resistance R26 and described resistance R27 respectively； Resistance described in the GS interpolar parallel connections of resistance R3, described switching tube Q4 described in described switching tube Q1 GS interpolar parallel connections R8；Described resistance R5 is connected to described switching tube Q1 G poles；Described resistance R12 is connected to described switching tube Q4 G Pole；Described resistance R5, resistance R12, resistance R27 are in parallel.
9. A kind of 9. off-network controller for solar as claimed in claim 7, it is characterised in that：The second described drive circuit also wraps Include triode Q50, triode Q51；Described triode Q50 is NPN type, and described triode Q51 is positive-negative-positive；Described Two on-off circuits also include resistance R1, resistance R4, resistance R9, resistance R10；The described triode Q50 of described resistance R94 connections With described triode Q51 B poles；Described triode Q50 and the described common E poles of triode Q51；Described triode Q50 E poles described resistance R4 is connected with described switching tube Q2 G interpolars；Described triode Q51 E poles and described switch Resistance R10 described in pipe Q3 G interpolars connection；Resistance R1 described in described switching tube Q2 GS interpolar parallel connections；Described opens Close the resistance R9 described in pipe Q3 GS interpolar parallel connections.
10. A kind of 10. off-network controller for solar as claimed in claim 7, it is characterised in that：It is described switching tube Q1, described Switching tube Q2, described switching tube Q3, described switching tube Q4 DS interpolars are parallel with voltage-regulator diode；The described pole of voltage stabilizing two Switching tube Q1, described switching tube Q2 described in the positive pole connection of pipe, described switching tube Q3, described switching tube Q4 D poles； It is the described switching tube Q1 of the negative pole connection of described voltage-regulator diode, described switching tube Q2, described switching tube Q3, described Switching tube Q4 S poles.