CN109963372A - Solar LED driving device and solar street light - Google Patents

Solar LED driving device and solar street light Download PDF

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Publication number
CN109963372A
CN109963372A CN201711402183.XA CN201711402183A CN109963372A CN 109963372 A CN109963372 A CN 109963372A CN 201711402183 A CN201711402183 A CN 201711402183A CN 109963372 A CN109963372 A CN 109963372A
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China
Prior art keywords
module
battery core
main control
switch
control module
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Granted
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CN201711402183.XA
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Chinese (zh)
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CN109963372B (en
Inventor
王雄昌
包凤海
苟江锋
符策健
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BYD Co Ltd
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BYD Co Ltd
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    • 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
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10Controlling the intensity of the light
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30Driver circuits
    • H05B45/37Converter circuits
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/72Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention discloses a kind of solar LED driving device and solar street light, which includes photovoltaic panel assembly, for can be carried out conversion to the sun to export photovoltaic electric current;Battery core is connected with photovoltaic panel assembly;First boost module, the first voltage exported when for discharging battery core carry out boosting inverter to export second voltage;Second boost module, for carrying out boosting inverter to second voltage in the first discharge switch closure to export tertiary voltage;Constant-current driven module is connected with LED lamp, and is connected by the second discharge switch with the second boost module;Main control module, for obtaining the discharge parameter of battery core, and it is controlled according to switch state of the discharge parameter to the first discharge switch and the second discharge switch, wherein, main control module is when controlling the first discharge switch and the second discharge switch is closed, driving control signal also is inputted to constant-current driven module, is shone with controlling LED lamp.

Description

Solar LED driving device and solar street light
Technical field
The present invention relates to technical field of lamps, in particular to a kind of solar LED driving device and a kind of solar street light.
Background technique
Currently, solar energy is as main both at home and abroad all in the technology development and practical application for supporting new energy field energetically Renewable energy, all applied at many aspects of daily life, such as solar water heater, solar street light Deng also enriching people's lives not only in response to the call of domestic and international sustainable development and low-carbon economy.Solar street light conduct The fundamental construction of urban development is all commonly used in many cities in China.
However, the driving device in the solar street light of the relevant technologies is not enough the protection of its inside battery core, and It needs to increase the devices such as transformer in driving device, the lower battery core driving of output voltage can just be made to need higher supply voltage Chip, production cost is higher.
Summary of the invention
The present invention is directed to solve one of the technical problem in above-mentioned technology at least to a certain extent.For this purpose, of the invention One purpose is to propose a kind of solar LED driving device, can not only effectively protect, greatly improve to its battery core Its reliability, and can be realized and multiple components of its inside are powered, lower production costs, and there is energy-efficient function Energy.
Second object of the present invention is to propose a kind of solar street light.
In order to achieve the above objectives, first aspect present invention embodiment proposes a kind of solar LED driving device, including light Board group part is lied prostrate, the photovoltaic panel assembly is used to can be carried out the sun conversion to export photovoltaic electric current;Battery core, the battery core with it is described Photovoltaic panel assembly is connected, and is charged with the photovoltaic electric current exported by the photovoltaic panel assembly to the battery core;First boosting Module, the first voltage that first boost module is used to export when discharging to the battery core carry out boosting inverter to export second Voltage;Second boost module, second boost module is connected by the first discharge switch with first boost module, described Second boost module is used to carry out boosting inverter to the second voltage in first discharge switch closure to export third Voltage;Constant-current driven module, the constant-current driven module are connected with LED lamp, and pass through the second discharge switch and described second Boost module is connected;Main control module, the main control module are connected with first boost module, to pass through the first boosting mould The second voltage of block output is powered the main control module, and the main control module is also opened with first electric discharge respectively Pass, second discharge switch are connected with the constant-current driven module, and the main control module is used to obtain the electric discharge of the battery core Parameter, and controlled according to switch state of the discharge parameter to first discharge switch and second discharge switch System, wherein the main control module is controlling first discharge switch and second discharge switch closure, to pass through described the When the tertiary voltage of two boost modules output is powered the constant-current driven module, also to the constant-current driven module Driving control signal is inputted, is shone with controlling the LED lamp.
Solar LED driving device according to an embodiment of the present invention, by photovoltaic panel assembly to the sun can be carried out conversion with The first voltage exported when exporting photovoltaic electric current, and charge to battery core, and being discharged by the first boost module battery core Boosting inverter is carried out to export second voltage, and by the second boost module when the first discharge switch is closed to second voltage into Row boosting inverter is to export tertiary voltage, and the discharge parameter of battery core is obtained by main control module, and according to discharge parameter pair The switch state of first discharge switch and the second discharge switch is controlled, and main control module is in control the first discharge switch and second When discharge switch is closed, driving control signal also is inputted to constant-current driven module, is shone with controlling LED lamp.As a result, can not only It is enough that effectively its battery core is protected, its reliability is greatly improved, and can be realized multiple components progress to its inside Power supply, lower production costs, and there is energy-efficient function.
In order to achieve the above objectives, second aspect of the present invention embodiment proposes a kind of solar street light.
The solar street light of the embodiment of the present invention, at least one solar LED proposed including the above embodiment of the present invention Driving device, specific embodiment can refer to above-described embodiment, and to avoid redundancy, details are not described herein.
Solar street light according to an embodiment of the present invention can not only effectively protect its battery core, greatly improve Its reliability, and can be realized and multiple components of its inside are powered, lower production costs, and there is energy-efficient function Energy.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description It obtains obviously, or by recognizing practice of the invention.
Detailed description of the invention
Fig. 1 is the block diagram according to the solar LED driving device of the embodiment of the present invention;
Fig. 2 is the block diagram according to the solar LED driving device of first aspect present invention embodiment;
Fig. 3 is the structural schematic diagram according to the constant-current driven module of one embodiment of the invention;
Fig. 4 is the parallel-connection structure schematic diagram according to the solar energy device of one embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
The solar LED driving device and solar street light of the embodiment of the present invention described with reference to the accompanying drawing.
Fig. 1 is the block diagram of the solar LED driving device of the embodiment of the present invention.
As shown in Figure 1, the solar LED driving device 1 of the embodiment of the present invention, including photovoltaic panel assembly 10, battery core 20, One boost module 30, the second boost module 40, constant-current driven module 50, main control module 60.
Wherein, photovoltaic panel assembly 10 is used to can be carried out the sun conversion to export photovoltaic electric current;Battery core 20 and photovoltaic board group Part 10 is connected, and is charged with the photovoltaic electric current exported by photovoltaic panel assembly 10 to battery core 20;First boost module 30 is used for The first voltage exported when discharging battery core 20 carries out boosting inverter to export second voltage;Second boost module 40 passes through first Discharge switch K1 is connected with the first boost module 30, and the second boost module 40 is used in the first discharge switch K1 closure to second Voltage carries out boosting inverter to export tertiary voltage;Constant-current driven module 50 is connected with LED lamp, and passes through the second discharge switch K2 is connected with the second boost module 40;Main control module 10 is connected with the first boost module 30, with defeated by the first boost module 30 Second voltage out is powered main control module 10, and main control module 10 is also opened with the first discharge switch K1, the second electric discharge respectively It closes K2 to be connected with constant-current driven module 50, main control module 10 is used to obtain the discharge parameter of battery core 20, and according to discharge parameter pair The switch state of first discharge switch K1 and the second discharge switch K2 are controlled, wherein main control module 10 is put in control first Electric switch K1 and the second discharge switch K2 closure, with the tertiary voltage by the output of the second boost module 40 to constant-current driven module 50 when being powered, and also inputs driving control signal to constant-current driven module 50, is shone with controlling LED lamp.
In one embodiment of the invention, battery core 20 can be the single battery core of large capacity, to drive as solar LED The energy storage units of device 1 can reach the power demand of each component in solar LED driving device 1.Wherein, battery core can For single-unit LiFePO4 battery core, nominal voltage can be 3.2V.Using single battery core, connect compared to by multiple battery cores, no It only avoids that the unbalanced phenomenon of battery core charge or discharge occurs, and greatly reduces the failure of solar LED driving device 1 Rate.
Specifically, as shown in Fig. 2, battery core 20 can be connected by first switch circuit 70 with photovoltaic panel assembly 10, first is opened Powered-down road 70 is connected with main control module 60.Wherein, first switch circuit 70 may include charge switch K3, and main control module 60 passes through control Charge switch K3 closure processed charges to battery core 20 with the photovoltaic electric current exported by photovoltaic panel assembly 10.
Further, as shown in Fig. 2, first switch circuit 70 may also include current sampling unit 71, main control module 60 is logical Overcurrent sampling unit 71 obtains charging current when charging to battery core 20, and judges whether charging current is less than default electricity Threshold value is flowed, and when charging current is less than predetermined current threshold, control charge switch K3 is disconnected to stop carrying out battery core 20 Charging.Wherein, current sampling unit 71 may include sampling resistor, and predetermined current threshold may be configured as 0.5A.In addition, first switch Circuit 70 may also include fuse etc..
That is, photovoltaic panel assembly 10 is right when the intensity of illumination for the sunlight that photovoltaic panel assembly 10 receives is little Charging current when battery core 20 is charged is smaller, i.e., it is, for example, less than 0.5A that charging current, which is less than predetermined current threshold, at this point, The efficiency to be charged by photovoltaic panel assembly 10 to battery core 20 is lower, and it is disconnected can to control charge switch K3 by main control module 60 It opens, to stop charging to battery core 20.
It should be noted that due to the exportable biggish photovoltaic electric current of photovoltaic panel assembly 10, which need to be by the One switching circuit 70 inputs battery core 20, and therefore, the biggish MOS of power can be used in the charge switch K3 in first switch circuit 70 Pipe, to guarantee that first switch circuit 70 from damage, accordingly, needs to input biggish voltage signal to first switch circuit 70 In charge switch K3, such as 12V voltage signal, so that charge switch K3 is normally carried out work.
In one embodiment of the invention, the first voltage that battery core 20 exports can be fluctuated in a certain range (minimum input 1.8V), and main control module 60 needs a highly stable voltage to be powered it, therefore, can pass through first It is (such as constant to obtain constant second voltage after the first voltage that boost module 30 exports battery core 20 carries out boosting inverter 5V).The second voltage can input LDO (Low Dropout Regulator, low pressure difference linear voltage regulator), by the transformation of LDO Exportable stable voltage (such as 3.3V) afterwards, and it is inputted main control module 60, to be powered to main control module 60.Its In, the second voltage can the peripheral circuit (such as operational amplifier, comparator) directly to main control module 60 be powered.
Further, the second voltage of the first boost module 30 output can also input the second boost module 40, the second boosting Module 40 carries out exportable constant tertiary voltage (such as constant 12V) after boosting inverter to it, to meet the second boost module 40 demand.
In one embodiment of the invention, when do not need constant-current driven module 50 worked do not need constant current driving When module 50 drives LED lamp to be worked, constant-current driven module 50 can be at sleep state, and (in this state, constant current is driven Module 50 can temporarily cease work, by that can wake up constant-current driven module at any time to 50 input voltage signal of constant-current driven module 50, constant-current driven module 50 can be made to be normally carried out work), when needing constant-current driven module 50 to be worked, can by with perseverance The battery core 20 that stream drive module 50 is directly connected to, to 50 input voltage signal of constant-current driven module, to wake up constant current driving in time Module 50 is worked normally, and can reduce the power consumption of constant-current driven module 50 as a result,.
In one embodiment of the invention, as shown in Fig. 2, solar LED driving device 1 further includes illumination acquisition module 80, illumination acquisition module 80 is used to acquire the intensity of illumination of local environment, wherein main control module 60 and 80 phase of illumination acquisition module Even, main control module 60 is less than default illumination threshold for judging whether intensity of illumination is less than default illumination threshold, and in intensity of illumination When value, the first discharge switch K1 and the second discharge switch K2 closure is controlled, and input drive control letter to constant-current driven module 50 Number, it is shone with controlling LED lamp.Wherein, illumination acquisition module 80 may include photosensitive probe and luminance signal sample circuit etc., Lower-powered metal-oxide-semiconductor can be used in one discharge switch K1 and the second discharge switch K2, does not need applied voltage signal.
That is, the intensity of illumination when local environment is lower, i.e., intensity of illumination is less than default illumination threshold, is, for example, less than 10 luxs, when LED lamp being needed to be illuminated, main control module 60 can control the first discharge switch K1 and the second discharge switch K2 Closure, so that the electric energy stored in battery core 20, which inputs constant current by the first discharge switch K1 and the second discharge switch K2, drives mould Block, and driving control signal is inputted to constant-current driven module, it is shone with controlling LED lamp.
In one embodiment of the invention, when not needing main control module 60 and being worked, main control module 60 be can be at (in this state, main control module 60 can stop working sleep state, by that can call out at any time to 60 input voltage signal of main control module Wake up main control module 60 so that main control module 60 is normally carried out work), when needing main control module 60 to be worked, can by with The photovoltaic panel assembly 10 that main control module 60 is directly connected to, to 60 input voltage signal of main control module, to wake up main control module in time 60 work, and can reduce the power consumption of main control module 60 as a result,.
In one embodiment of the invention, discharge parameter may include discharge voltage, and main control module 60 is for judging electric discharge Voltage whether less than the first predetermined voltage threshold, and when discharge voltage is less than the first predetermined voltage threshold, discharge by control second Switch K2 is disconnected, to stop being powered constant-current driven module.
Main control module is also used to obtain the output voltage of constant-current driven module 50, and judges whether output voltage is greater than second Predetermined voltage threshold, and when output voltage is greater than the second predetermined voltage threshold, the second discharge switch K2 of control is disconnected, to stop Only constant-current driven module 50 is powered.
Specifically, main control module 60 is judging discharge voltage less than the first predetermined voltage threshold, i.e. over-discharge occurs for battery core 20 When, the not enough power supply stored in battery core 20 is normally to power to constant-current driven module 50, at this point, second can be controlled rapidly Discharge switch K2 is disconnected, to stop being powered constant-current driven module 50 in time.
Main control module 60 is greater than the second predetermined voltage threshold in the output voltage for judging constant-current driven module, i.e. constant current drives When the overtension of the output of module, the second discharge switch K2 disconnection can be controlled rapidly, to stop driving mould to constant current in time Block 50 is powered, so that constant-current driven module 50 stops exporting higher voltage, to make LED lamp from damage.
Further, main control module 60 is also used to instruct the first discharge switch K1 of control to disconnect to reduce according to Energy Saving Control Power consumption.
Specifically, when solar energy device 1 is in transport or storing process, that is, solar energy device 1 is also not When coming into operation, corresponding Energy Saving Control can be inputted and instructed to main control module 60, so that main control module can be according to the Energy Saving Control The first discharge switch K1 of instruction control is disconnected, and the second boost module 40 is made to stop working, thus makes solar LED driving device 1 Into low-power consumption mode, to save the electricity consumption to battery core 20 to the maximum extent.
After solar energy device 1 is mounted on road surface, both do not needing to charge to battery core 20, such as battery core 20 is It through fully charged, and do not need battery core 20 and discharges, such as battery core 20 fills with electricity and the intensity of illumination of local environment is higher, Or battery core, when night over-discharge occurring, main control module 60 can automatically generate corresponding Energy Saving Control instruction, be put with control first Electric switch K1 is disconnected, and the second boost module 40 is made to stop working, thus solar LED driving device 1 is made to enter low-power consumption mode, To save the electricity consumption to battery core 20 to the maximum extent.In one embodiment of the invention, as shown in Fig. 2, solar LED Driving device 1 further includes dimmer switch component 90, and dimmer switch component 90 is connected with constant-current driven module 50, dimmer switch component 90 include multiple switch element, wherein by changing output of the switch state of multiple switch element to constant-current driven module 50 Power is adjusted.
In one embodiment of the invention, as shown in figure 3, LED driver can be used in constant-current driven module 50 Multiple switch element in dimmer switch component 90 can be passed through respectively corresponding divider resistance and TPS92690 by TPS92690 Pin ADJ is connected, and by changing the switch state of the multiple switch element in dimmer switch component 90, is adjusted pin ADJ's Voltage, so that the output voltage of LED driver TPS92690 is adjusted, it can adjuster output power.Wherein, TPS92690 draws Foot Vref can input 2.5V reference voltage using as its reference voltage.
Wherein, toggle switch can be used in dimmer switch component 90, and the switch state by adjusting toggle switch can be by constant current The output power of drive module 50 is adjusted to different power grades, for example, can be by the output power of constant-current driven module 50 40W、30W、20W、15W。
The output power of constant-current driven module 50 can be divided into different power grades as needed as a result, to meet not With the demand of LED lamp supplier.
In one embodiment of the invention, main control module 60 is also used to obtain the continuous illumination time of LED lamp, and sentences Whether the disconnected continuous illumination time is greater than preset time threshold, and when the continuous illumination time being greater than preset time threshold, passes through The driving control signal of input constant-current driven module 50 is adjusted, to reduce the brightness of LED lamp.
Specifically, the driving control signal for inputting constant-current driven module 50 can be pwm signal, when control LED lamp continues It shines a period of time, such as after 5 hours, pedestrian, vehicle of illumination region etc. can be greatly reduced, at this point, software control can be passed through The mode of system, can be by adjusting parameters such as the duty ratios of pwm signal of pin nDIM of input constant-current driven module 50, to adjust The output power of constant-current driven module 50 is saved, it specifically, can be by reducing the duty ratio of the pwm signal, accordingly to reduce perseverance The output power of drive module 50 is flowed, such as output power can be reduced by 50% by the duty ratio of reduction pwm signal, from And the brightness of LED lamp is reduced, reduce the electricity consumption to battery core.
In conclusion the output of constant-current driven module 50 can be adjusted as needed in such a way that software and hardware combines Different power grades, and the design of the hardware components and software section of the constant-current driven module 50 of different capacity grade is complete Consistent (in addition to the button of toggle switch is had any different) is not only convenient for producing and manage, and greatly reduce its production cost.
In one embodiment of the invention, as shown in Fig. 2, solar LED driving device 1 may also include temperature acquisition mould Block 100, temperature collecting module 100 are used to acquire the temperature of battery core 20, wherein main control module 60 to battery core 20 for filling When electric, judge whether the temperature of battery core 20 is greater than the first preset temperature threshold or less than the second preset temperature threshold, and in electricity Control charge switch K3 is disconnected when the temperature of core 20 is greater than the first preset temperature threshold or is less than second preset temperature threshold, To stop charging to battery core 20, wherein the second preset temperature threshold is less than the first preset temperature threshold;Main control module 60 is used In when being powered to constant-current driven module 50, judging whether the temperature of battery core 20 is greater than third preset temperature threshold or is less than 4th preset temperature threshold, and when the temperature of battery core 20 is greater than the second preset temperature threshold or less than four preset temperature thresholds The disconnection of the second discharge switch is controlled, to stop being powered constant-current driven module 50, wherein the 4th preset temperature threshold is less than Third preset temperature threshold.
That is, the temperature range of its normal operation can be corresponded to when battery core 20 is run in a charge mode.When battery core Temperature is greater than the maximum value for the temperature range that it is operated normally, i.e., when the temperature of battery core is greater than the first preset temperature threshold, master control Module 60 can determine whether that battery core 20 enters excess temperature working condition, and accordingly, main control module 60 can control charge switch K3 to disconnect, so that Battery core 20 enters high temperature protection state, and until protection is eliminated, i.e., the temperature of battery core is in its temperature range operated normally, master control Module 60 controls charge switch K3 closure, and battery core 20 can be normally carried out work;When the temperature of battery core is less than its temperature operated normally Spend the minimum value of range, i.e., when the temperature of battery core is less than the second preset temperature threshold, battery core can not normally charge, this When, main control module 60 can control charge switch K3 to disconnect, so that battery core 20 enters low-temperature protection state.Until protection elimination, i.e., The temperature of battery core is in the temperature range of its normal operation, and main control module 60 controls charge switch K3 closure, and battery core 20 can be normal It works.
When battery core 20 is run with discharge mode, the temperature range of its normal operation can be corresponded to.When the temperature of battery core is greater than The maximum value of its temperature range operated normally, i.e., when the temperature of battery core is greater than third preset temperature threshold, main control module 60 can Judge battery core 20 enter excess temperature working condition, accordingly, main control module 60 can control charge switch K3 disconnect so that battery core 20 into Enter high temperature protection state.Until protection is eliminated, i.e., the temperature of battery core is in its temperature range operated normally, and main control module 60 is controlled Charge switch K3 closure processed, battery core 20 can be normally carried out work;When the temperature of battery core is less than the temperature range that it is operated normally Minimum value, i.e., when the temperature of battery core is less than four preset temperature thresholds, battery core can not normally charge, at this point, master control mould Block 60 can control charge switch K3 to disconnect, so that battery core 20 enters low-temperature protection state.Until protection elimination, the i.e. temperature of battery core The temperature range operated normally in it, main control module 60 control charge switch K3 closure, and battery core 20 can be normally carried out work.Its In, the first preset temperature threshold can be equal to third preset temperature threshold.
In one particular embodiment of the present invention, when battery core 20 is run in a charge mode, the temperature of normal work Range can be 0~55 DEG C.When the temperature of battery core is higher than 55 DEG C, main control module 60 can determine whether that battery core 20 enters excess temperature work shape State, accordingly, main control module 60 can control charge switch K3 to disconnect, so that battery core 20 enters high temperature protection state, until protection It eliminates, i.e., the temperature of battery core 20 is in 0~55 DEG C, and main control module 60 controls charge switch K3 closure, and battery core 20 can be normally carried out Work;When the temperature of battery core is less than 0 DEG C, battery core can not normally charge, at this point, the controllable charging of main control module 60 is opened K3 disconnection is closed, so that battery core 20 enters low-temperature protection state, until protection is eliminated, i.e., the temperature of battery core 20 is in 0~55 DEG C, master It controls module 60 and controls charge switch K3 closure, battery core 20 can be normally carried out work.
When battery core 20 is run with discharge mode, the temperature range worked normally can be -10~50 DEG C.When the temperature of battery core When degree is higher than 50 DEG C, main control module 60 can determine whether that battery core 20 enters excess temperature working condition, and accordingly, main control module 60 is controllable to be filled Electric switch K3 disconnect so that battery core 20 enter high temperature protection state, until protection eliminate, i.e., the temperature of battery core 20 be in -10~ 50 DEG C, main control module 60 controls charge switch K3 closure, and battery core 20 can be normally carried out work;When the temperature of battery core is less than -10 DEG C When, battery core can not normally charge, at this point, main control module 60 can control charge switch K3 to disconnect, so that battery core 20 enters Low-temperature protection state, until protection is eliminated, i.e., the temperature of battery core 20 is in -10~50 DEG C, and main control module 60 controls charge switch K3 closure, battery core 20 can be normally carried out work.
Further, solar LED driving device 1 further includes heating module 110, and the corresponding battery core 20 of heating module 110 is set It sets, heating module 110 is connected by the first heater switch K4 with photovoltaic panel assembly 10, and passes through the second heater switch K5 and second Boost module 40 is connected.
Wherein, whether main control module 60 is also used to judge when charging to battery core 20 temperature of battery core 20 less than Five preset temperature thresholds, and the first heater switch K4 closure is controlled when the temperature of battery core 20 is less than five preset temperature thresholds, Heating module 110 is powered with the photovoltaic electric current exported by photovoltaic panel assembly 10, to be heated to battery core 20;Master control Whether module 60 is also used to judge when being powered constant-current driven module 50 temperature of battery core 20 less than the 6th preset temperature Threshold value, and the second heater switch K5 closure is controlled when the temperature of battery core 20 is less than six preset temperature thresholds, to pass through second The tertiary voltage that boost module 40 exports is powered heating module 110, to heat to battery core.Wherein, due to photovoltaic The exportable biggish photovoltaic electric current of board group part 10, the photovoltaic electric current need to can input heating module 110 by the first heater switch K4, Therefore, the biggish metal-oxide-semiconductor of power can be used in the first heater switch K4, with the first heater switch K4 of guarantee from damage, accordingly, Need to input biggish voltage signal to the first heater switch K4, such as 12V voltage signal, so that charge switch K3 is normally carried out work Make.Since the electric current of the second boost module 40 output is smaller, lower-powered metal-oxide-semiconductor can be used in the second heater switch K5, Applied voltage signal is not needed.
In one embodiment of the invention, when the environment temperature locating for the battery core 20 is lower, the temperature of battery core is relatively low, The performance of 20 charge and discharge of battery core can be greatly affected, at this point, can be heated by heating module 110 to battery core 20.When Battery core 20 is run in a charge mode, and when the temperature of battery core 20 is less than five preset temperature thresholds, main control module 60 controllable the One heater switch K4 closure, so that the photovoltaic electric current that photovoltaic panel assembly 10 exports can be powered heating module 110, to make Resistance in heating module 110 can produce heat, to heat to battery core 20;When battery core 20 is run with discharge mode, and electricity When the temperature of core 20 is less than six preset temperature thresholds, main control module 60 can control the second heater switch K5 closure, so that photovoltaic The photovoltaic electric current that board group part 10 exports can be powered heating module 110, so that the resistance in heating module 110 be made to can produce Heat, to be heated to battery core 20.
Preferably, the 5th preset temperature threshold is more than or equal to the second preset temperature threshold and less than the first preset temperature threshold Value, the 6th preset temperature threshold are more than or equal to the 4th preset temperature threshold and are less than third preset temperature threshold.
It as a result, can be when battery core 20 be in lower temperature environment, it is ensured that the temperature of battery core 20 is in the temperature operated normally Range is spent, to guarantee that battery core 20 is normally carried out work.
In one embodiment of the invention, as shown in Fig. 2, solar LED driving device 1 further includes communication module 120, Communication module 120 is connected with main control module 60, wherein main control module 60 is also used to obtain fault message, and passes through communication module Fault message is sent to external equipment by 120, and main control module 60 is also referred to by the control that communication module 120 receives external equipment It enables.
Specifically, communication module 120 can be formed solar LED driving device 1 according to region by wireless communication technique One network, and it is connected (such as mobile phone) with external equipment.Solar LED driving device 1 can be carried out by main control module 60 Real-time detection to obtain the fault message of solar LED driving device 1, and is sent the fault message to by communication module External equipment in order to which staff can recognize the fault message in time, and takes corresponding maintenance measures.In addition, When solar LED driving device 1 needs to change initial setting up, portion can be set by outside, it is remotely changed, avoided out The case where now spending a large amount of man power and material to carry out field stripping to it.
In conclusion solar LED driving device according to an embodiment of the present invention, by photovoltaic panel assembly to solar energy into It is exported when going conversion to export photovoltaic electric current, and charge to battery core, and being discharged by the first boost module battery core First voltage carries out boosting inverter to export second voltage, and by the second boost module when the first discharge switch is closed to the Two voltages carry out boosting inverter to export tertiary voltage, and the discharge parameter of battery core is obtained by main control module, and according to putting Electrical parameter controls the switch state of the first discharge switch and the second discharge switch, and main control module is opened in the electric discharge of control first When closing with the second discharge switch closure, driving control signal also is inputted to constant-current driven module, is shone with controlling LED lamp.By This, can not only effectively protect its battery core, greatly improve its reliability, and can be realized to the multiple of its inside Component is powered, lower production costs, and has energy-efficient function.
Corresponding above-described embodiment, the present invention also propose a kind of solar street light.
The solar street light of the embodiment of the present invention, at least one solar LED proposed including the above embodiment of the present invention Driving device, specific embodiment can refer to above-described embodiment, and to avoid redundancy, details are not described herein.
It should be noted that as shown in figure 4, when there are the drives of the solar LED of multiple above-described embodiments in solar street light When dynamic device 1, solar LED driving device 1 used in parallel (can only show 3 solar LED driving devices 1, can deposit in Fig. 4 In at least two solar LED driving devices 1), i.e. the positive phase of the positive output end of solar LED driving device 1 and LED lamp Even, the negative output terminal of solar LED driving device 1 is connected with the cathode of LED lamp, to meet in different occasions to its output work The demand of rate.
Solar street light according to an embodiment of the present invention can not only effectively protect its battery core, greatly improve Its reliability, and can be realized and multiple components of its inside are powered, lower production costs, and there is energy-efficient function Energy.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more, Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral;It can be mechanical connect It connects, is also possible to be electrically connected;It can be directly connected, can also can be in two elements indirectly connected through an intermediary The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below " One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims (15)

1. a kind of solar LED driving device characterized by comprising
Photovoltaic panel assembly, the photovoltaic panel assembly are used to can be carried out the sun conversion to export photovoltaic electric current;
Battery core, the battery core are connected with the photovoltaic panel assembly, with the photovoltaic electric current that is exported by the photovoltaic panel assembly to institute Battery core is stated to charge;
First boost module, the first voltage that first boost module is used to export when discharging to the battery core carry out boosting change It changes to export second voltage;
Second boost module, second boost module is connected by the first discharge switch with first boost module, described Second boost module is used to carry out boosting inverter to the second voltage in first discharge switch closure to export third Voltage;
Constant-current driven module, the constant-current driven module are connected with LED lamp, and pass through the second discharge switch and described second liter Die block is connected;
Main control module, the main control module are connected with first boost module, with what is exported by first boost module The second voltage is powered the main control module, the main control module also respectively with first discharge switch, described Second discharge switch is connected with the constant-current driven module, and the main control module is used to obtain the discharge parameter of the battery core, and It is controlled according to switch state of the discharge parameter to first discharge switch and second discharge switch, wherein The main control module is controlling first discharge switch and second discharge switch closure, to pass through the second boosting mould When the tertiary voltage of block output is powered the constant-current driven module, also inputs and drive to the constant-current driven module Signal is controlled, is shone with controlling the LED lamp.
2. solar LED driving device according to claim 1, which is characterized in that the battery core passes through first switch electricity Road is connected with the photovoltaic panel assembly, and the first switch circuit is connected with the main control module, wherein the first switch electricity Road includes charge switch, what the main control module was exported by controlling the charge switch closure by the photovoltaic panel assembly Photovoltaic electric current charges to the battery core.
3. solar LED driving device according to claim 2, which is characterized in that the first switch circuit further includes Current sampling unit, the main control module obtain charging electricity when charging to the battery core by the current sampling unit Stream, and judge whether the charging current is less than predetermined current threshold, and be less than the predetermined current in the charging current When threshold value, controls the charge switch and disconnect to stop charging to the battery core.
4. solar LED driving device according to claim 1, which is characterized in that it further include illumination acquisition module, it is described Illumination acquisition module is used to acquire the intensity of illumination of local environment, wherein
The main control module is connected with the illumination acquisition module, and the main control module is for judging whether the intensity of illumination is small In default illumination threshold, and when the intensity of illumination is less than the default illumination threshold, control first discharge switch and The second discharge switch closure, and driving control signal is inputted to the constant-current driven module, to control the LED lamp hair Light.
5. solar LED driving device according to claim 4, which is characterized in that the discharge parameter includes electric discharge electricity Pressure, the main control module is for judging the discharge voltage whether less than the first predetermined voltage threshold, and in the discharge voltage It when less than first predetermined voltage threshold, controls second discharge switch and disconnects, to stop to the constant-current driven module It is powered.
6. solar LED driving device according to claim 5, which is characterized in that the main control module is also used to obtain The output voltage of the constant-current driven module, and judge whether the output voltage is greater than the second predetermined voltage threshold, Yi Ji It when the output voltage is greater than second predetermined voltage threshold, controls second discharge switch and disconnects, to stop to described Constant-current driven module is powered.
7. solar LED driving device according to claim 6, which is characterized in that the main control module is also used to basis Energy Saving Control instruction controls first discharge switch and disconnects to reduce power consumption.
8. solar LED driving device according to claim 1, which is characterized in that it further include dimmer switch component, it is described Dimmer switch component is connected with the constant-current driven module, and the dimmer switch component includes multiple switch element, wherein is passed through The output power of the constant-current driven module is adjusted in the switch state for changing the multiple switch element.
9. solar LED driving device according to claim 8, which is characterized in that the main control module is also used to obtain The continuous illumination time of the LED lamp, and judge whether the continuous illumination time is greater than preset time threshold, and in institute When stating the continuous illumination time greater than the preset time threshold, by the driving control signal for inputting the constant-current driven module It is adjusted, to reduce the brightness of the LED lamp.
10. solar LED driving device according to claim 2, which is characterized in that it further include temperature collecting module, institute Temperature collecting module is stated for acquiring the temperature of the battery core, wherein
The main control module is used for when charging to the battery core, and it is default to judge whether the temperature of the battery core is greater than first Temperature threshold or less than the second preset temperature threshold, and it is greater than first preset temperature threshold or small in the temperature of the battery core It controls the charge switch when second preset temperature threshold to disconnect, to stop charging to the battery core, wherein institute The second preset temperature threshold is stated less than first preset temperature threshold;
The main control module is used for when being powered to the constant-current driven module, judges whether the temperature of the battery core is greater than Third preset temperature threshold is greater than the third preset temperature less than the 4th preset temperature threshold, and in the temperature of the battery core Threshold value or less than four preset temperature thresholds when, control second discharge switch and disconnect, to stop to the constant-current driven module It is powered, wherein the 4th preset temperature threshold is less than the third preset temperature threshold.
11. solar LED driving device according to claim 10, which is characterized in that it further include heating module, it is described to add Thermal modules correspond to the battery core setting, and the heating module is connected by the first heater switch with the photovoltaic panel assembly, and is led to The second heater switch is crossed to be connected with second boost module, wherein
The main control module is also used to judge when charging to the battery core whether the temperature of the battery core is pre- less than the 5th If temperature threshold, and control first heater switch when the temperature of the battery core is less than five preset temperature threshold and close It closes, the heating module is powered with the photovoltaic electric current exported by the photovoltaic panel assembly, to be carried out to the battery core Heating;
The main control module is also used to judge when being powered the constant-current driven module whether the temperature of the battery core is small In the 6th preset temperature threshold, and described second is controlled when the temperature of the battery core is less than six preset temperature threshold and is added Thermal switch closure, is powered the heating module with the tertiary voltage exported by second boost module, to institute Battery core is stated to be heated.
12. solar LED driving device according to claim 11, which is characterized in that the 5th preset temperature threshold More than or equal to second preset temperature threshold and it is less than first preset temperature threshold, the 6th preset temperature threshold is big In equal to the 4th preset temperature threshold and less than the third preset temperature threshold.
13. solar LED driving device according to claim 1, which is characterized in that it further include communication module, it is described logical News module is connected with the main control module, wherein the main control module is also used to obtain fault message, and passes through the communication mould The fault message is sent to external equipment by block, and the main control module also receives the control of external equipment by the communication module System instruction.
14. solar LED driving device according to claim 1 to 13, which is characterized in that the battery core is Single battery core.
15. a kind of solar street light, which is characterized in that including at least one according to claim 1 described in any one of -14 too Positive energy LED drive device.
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