CN101709846B - Device for lighting solar lawn - Google Patents
Device for lighting solar lawn Download PDFInfo
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- CN101709846B CN101709846B CN2009101906351A CN200910190635A CN101709846B CN 101709846 B CN101709846 B CN 101709846B CN 2009101906351 A CN2009101906351 A CN 2009101906351A CN 200910190635 A CN200910190635 A CN 200910190635A CN 101709846 B CN101709846 B CN 101709846B
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
Abstract
The invention provides a device for lighting a solar lawn. The device comprises a solar cell plate, a storage cell and a lawn light; and in addition, the device also comprises a control device, wherein the control device is formed by a core chip. In the device, because all control circuits are integrated in an integrate circuit chip, so that the defects of big energy consumption, big material loss, poor water resistance and the like due to discrete elements are overcome, and simultaneously, the chip is additionally provided with an overcharge protection module which is used for avoiding the overcharge circuit of the storage cell, so that the electrically charging safety of the storage cell is ensured.
Description
Technical field
The present invention relates to a kind of lawn lighting device, particularly a kind of solar cell that utilizes provides the lawn illuminator of electric energy for the LED light fixture of Lawn lamp, and this system has a controller.
Background technology
The industry device for lighting solar lawn as shown in Figure 1 now, mainly be included in the solar panel of gathering solar energy daytime, store the battery of the electric energy that aforementioned solar panel produces, and Lawn lamp, Lawn lamp is made up of the LED light fixture mostly now, and Lawn lamp throws light on to the lawn by storage battery power supply at night.The lawn illuminator is a kind of energy of environmental protection owing to having adopted solar energy for Lawn lamp provides electric energy like this, its course of work is, is charge in batteries by solar panel in the time of by day, when the night fell, solar cell can not produce electricity, and battery is the Lawn lamp power supply.The circuit as shown in Figure 1 that the control circuit of device for lighting solar lawn adopts in the prior art is controlled, when daytime, solar panel was to charge in batteries, link to each other with battery by the output of rectification circuit solar panel, be charge in batteries, when coming night, battery has been full of electricity, lights the LED lamp by the Lawn lamp control circuit.The solar lawn illuminator here has following deficiency:
1, not protection of charge in batteries is exported electric weight for a long time when solar cell, may arrive and cause accumulator super-charge, influences the service life of battery.
2, the circuit material loss of adopting discrete component to form is big, big energy-consuming, and owing to, be unfavorable for waterproof at outside work.
Summary of the invention
Big for solving device for lighting solar lawn energy consumption of the prior art; spillage of material is big; unfavorable waterproof and can not deficiency such as effectively protect to battery provides a kind of and utilizes an IC chip to finish device for lighting solar lawn to charge in batteries discharge control in the device for lighting solar lawn.
The present invention in order to realize the technical scheme that its technical purpose adopts is: a kind of device for lighting solar lawn; comprise solar panel; battery; LED lamp and control device; solar panel is described charge in batteries; battery provides electric power for the LED lamp under the control of described control device; independently form by control chip and photo-sensitive cell by one for described control device; described control chip comprises rectification; detect and the over-charge protective module, cross and put protection module; driver module boosts; the Current limited Control module; the timer module; Central Control Module and gauge tap.
The output of the described solar panel of input termination of described rectification, detection and over-charge protective module; electric current to solar panel output carries out rectification and detection; rectification output end connects the charging end of described battery, if when voltage surpasses the maximum input voltage of described battery in the testing result then block the connection of the end of solar panel to battery.
The described battery of input termination of described over-discharge protection circuit; when the output voltage of battery is higher than the minimum operating voltage of battery; battery is connected with the input of described booster driving circuit, when the output voltage of battery disconnects being connected of described battery and booster driving circuit during less than setting value.
The rated voltage output that described booster driving circuit boosts to Lawn lamp with the output voltage of battery is linked into the input of described current-limiting control circuit.
The control input end of described current-limiting control circuit connects described timer, when timer does not arrive setting-up time, according to first rated current of described Lawn lamp the output voltage of described booster driving circuit is connect described Lawn lamp by the gauge tap by described master controller control, when timer when the setting-up time, according to second rated current of described Lawn lamp the output voltage of described booster driving circuit is connect described Lawn lamp by the gauge tap by described master controller control.
Described gauge tap is linked between the power input of described current-limiting control circuit and Lawn lamp.
Described timer module comprises the time set interface, and its output sends a signal during to setting-up time when timer.
Described Central Control Module comprises makes energy control module and mode control module, the described output that makes the described photo-sensitive cell of input termination of energy control module, when the ambient brightness of the output of described photo-sensitive cell sets value less than minimum, connect the path of described battery to described gauge tap, described mode control module is arranged between described timer and the described gauge tap, when timer reaches setting-up time, control described gauge tap and control the work of described LED lamp by the second rated current mode.
The invention has the beneficial effects as follows; all control circuits are integrated on the IC chip; overcome because the energy consumption that discrete component brings is big; spillage of material is big; deficiencies such as unfavorable waterproof; in chip, increase simultaneously the over-charge protective module that is used to avoid battery is overcharged circuit, guaranteed the safety of charge in batteries.
Description of drawings
Accompanying drawing 1 is the block diagram of lawn of the prior art lighting device.
Accompanying drawing 2 is the block diagram of embodiment of the invention lawn lighting device.
Accompanying drawing 3 is an IC chip interior block diagram in the embodiment of the invention.
Accompanying drawing 4 is lawn lighting electric control principle figure in the embodiment of the invention.
The specific embodiment
Referring to accompanying drawing 2 and accompanying drawing 3; a kind of device for lighting solar lawn; comprise solar panel, battery and Lawn lamp, and the core I C of integrated all multi-functional control circuits, not only energy consumption is low, and peripheral component is formed omnibearing efficient control and general protection.
In the present embodiment, battery adopts the most high-effect ferric phosphate lithium cell in the whole world, and its charge efficiency is greater than 99%, and Lawn lamp adopts the LED lamp of the best optical efficiency of industry, and its optical efficiency is greater than 95lm/W.In order better solar panel, battery and Lawn lamp effectively to be controlled; present embodiment adopts an integrated integrated circuit control chip of many control modules; this control chip comprises rectification, detection and over-charge protective module, crosses and to put protection module, the driver module that boosts, Current limited Control module, timer module, Central Control Module and gauge tap.
In the present embodiment; the output of the described solar panel of input termination of rectification, detection and over-charge protective module; electric current to solar panel output carries out rectification and detection; rectification output end connects the charging end of described battery; when if voltage surpasses the maximum input voltage of described battery in the testing result then block of the connection of the end of solar panel to battery; at this moment, the voltage of battery is 3.6V.
The described battery of input termination of over-discharge protection circuit; when the output voltage of battery is higher than the minimum operating voltage of battery; battery is connected with the input of described booster driving circuit; when the output voltage of battery disconnects being connected of described battery and booster driving circuit during less than setting value; when battery tension during less than 2.4V; block being connected of battery and LED lamp, battery is carried out over.
The rated voltage output that booster driving circuit boosts to Lawn lamp with the output voltage of battery is linked into the input of described current-limiting control circuit.
The control input end of current-limiting control circuit connects described timer, when timer does not arrive setting-up time, according to first rated current of described Lawn lamp the output voltage of described booster driving circuit is connect described Lawn lamp by the gauge tap by described master controller control, when timer when the setting-up time, according to second rated current of described Lawn lamp the output voltage of described booster driving circuit is connect described Lawn lamp by the gauge tap by described master controller control.
Gauge tap is linked between the power input of described current-limiting control circuit and Lawn lamp.
The timer module comprises the time set interface, and its output sends a signal during to setting-up time when timer.In the present embodiment, the timer module comprises timer and oscillator, and the external timing capacitor of described oscillator is for timer provides commutator pulse.
Described Central Control Module comprises makes energy control module and mode control module, the described output that makes the described photo-sensitive cell of input termination of energy control module, when the ambient brightness of the output of described photo-sensitive cell sets value less than minimum, in the present embodiment, the ambient brightness of output is decided to be 10Lux less than minimum.Connect the path of described battery to described gauge tap, described mode control module is arranged between described timer and the described gauge tap, when timer reaches setting-up time, control described gauge tap and control the work of described LED lamp by the second rated current mode.
Referring to accompanying drawing 4, be embodiment of the invention lawn lighting electric control principle figure, it is basic control principle figure, is core with control chip U1.VBAT connects the lithium iron battery positive pole, and VSOL connects the solar cell positive pole, R1 be photo resistance at this place as photo-sensitive cell, R2 is photosensitive adjustment resistance.S1 is a mode conversion switch, and L1 constitutes current loop compensation adjustment circuit for low internal resistance inductance, R4 and C2, and C3 is that time adjustment electric capacity, R3 are the size of current controlling resistance.D1 and C1 constitute current rectifying and wave filtering circuit.Be the routine operation principle of this enforcement base below:
Pattern works by day:
When ambient brightness 〉=10lux, solar cell (SOLAR BT) is given ferric phosphate lithium cell (BT) charging through VSOL pin and the VBAT pin of U1, and monitors its voltage in real time, is filled up to battery.
In the present embodiment, battery is full of by voltage to be represented, has been full of when voltage is higher than 3.6V ± 0.05V explanation battery, and therefore stop charging because overcurrent protection is arranged this moment.Owing to record the VSOL end voltage＞0.8V and CDS end CDS R1＜50k Ω are arranged as U1, other module of U1 is not worked, and LED does not work.
Night mode of operation:
This moment ambient brightness≤10lux, when showing CDS end CDS R1＞50k Ω and VSOL end SOLAR BT voltage＜0.6V, the anodal end to U1 through VBAT of ferric phosphate lithium cell (BT) powered, enable to control CDS end inner module unlatching work, SW power switch end and L1 form the rectifying and wave-filtering energy storage of high frequency oscillation circuit and D1, C1, supply with required operating voltage of LED and electric current. and this moment, the LED lamp was bright.
CDS enables control work and gives the timer reset instruction simultaneously, and timer detects its MODE end pattern situation after the oscillator starting of oscillation, select the SECO mode of operation.CS+ and CS-port and COMP port and element R4, C2, R3 form the Current limited Control loop circuit, control LED operating current during high-precision real.
After working a plurality of hours under the official hour mode of operation; because battery has discharged and will use up; when VBAT end detects LiFePO4 voltage＜2.4V; in order to protect battery U1 and LED to quit work simultaneously; cross and put the protection unlatching; reset after voltage is arranged once more in solar cell (SOLAR BT), through the row pattern that works by day.
In the present embodiment, adopt the LED of the best optical efficiency of industry, its optical efficiency is greater than 95lm/W (requiring greater than the T8 fluorescent tube); And adopt the nonshared control unit integrated circuit, conversion efficiency is greater than more than 90%; Also adopted the most high-effect ferric phosphate lithium cell in the whole world, its charge efficiency is greater than 99%.So far embodiment has designed that to have energy consumption low, and spillage of material is low, the high-effect high brightness solar lawn lamp of plurality of advantages such as luminous efficiency height.Its photoelectric transformation efficiency reaches more than 90%.Become the real energy-saving and environment friendly high performance applications of industry pioneer.
In the present embodiment, because built-in timer.When can carry out various control to Lawn lamp as required, such as when turning on light, what is turned off the light, and lamp needs brightly especially, when does not need brightly especially etc. again, is the example of a use below:
The industry high brightness solar lawn lamp general work time is 8 hours or 6 hours now, and its requirement can not be satisfied various seasons and latitude difference high performance applications demand.
Present embodiment has been designed the solar lawn lamp of two kinds of optimum working modes, and specific design scheme mode of operation is as follows:
Pattern one:
Worked 10 hours: the LED operating current was standard operation electric current (this electric current LED luminous flux is that industry is the highest) in preceding 5 hours, and back 5 hours operating currents are 1/2 standard operation electric current.Make full use of battery, embodied high-effect theory.
Pattern two:
Worked 6 hours: 6 hours LED operating current electric currents are 1.3 times of standard operation electric currents (this electric current LED luminous flux is the highest 1.3 times of industry).Made full use of battery.Embodied high-effect theory.
Above pattern utilizes the Current limited Control device to control by gauge tap by a timer, and is convenient, efficient.Fully solved the high performance applications under various seasons and the latitude difference environment.
In addition, industry solar lawn lamp design all is the lighting time that solar cell and CDS voltage and electric current are controlled solar lawn lamp during with the dusk, and its shortcoming is the bright time disunity of lamp, lacks good uniformity.
Illumination research when present embodiment passes through the dusk, getting at dusk, best critical value 10LUX is the standard of turning on light, when photo-sensitive cell detects natural light less than 10LUX, master controller control control conducting, Lawn lamp is bright, and when photo-sensitive cell detected natural light greater than 10LUX, master controller control gauge tap disconnected, at this moment, by the charge in batteries of exporting to of rectification/testing circuit.In addition, present embodiment is according to Lawn lamp is designed as a kind of of city lighting engineering, when the late into the night people after a little while, the brightness that can appropriateness reduces Lawn lamp to be saving energy, provides good user to experience to the user fine when having solved consistency problem.
Claims (5)
1. device for lighting solar lawn, comprise solar panel, battery, LED lamp and control device, solar panel is described charge in batteries, battery provides electric power for the LED lamp under the control of described control device, it is characterized in that: independently form by control chip and photo-sensitive cell by one for described control device, described control chip comprises rectification, detection and over-charge protective module, crosses and to put protection module, the driver module that boosts, Current limited Control module, timer module, Central Control Module and gauge tap;
The output of the described solar panel of input termination of described rectification, detection and over-charge protective module, electric current to solar panel output carries out rectification and detection, rectification output end connects the charging end of described battery, if when voltage surpasses the maximum input voltage of described battery in the testing result then block the connection of the end of solar panel to battery;
Described mistake is put the described battery of input termination of protection module, when the output voltage of battery is higher than the minimum operating voltage of battery, battery is connected with the input of described booster driving circuit, when the output voltage of battery disconnects being connected of described battery and the driver module that boosts during less than setting value;
The rated voltage output that the described driver module that boosts boosts to Lawn lamp with the output voltage of battery is linked into the input of described Current limited Control module;
The control input end of described Current limited Control module connects described timer module, when the timer module does not arrive setting-up time, according to first rated current of described Lawn lamp the output voltage of the described driver module that boosts is connect described Lawn lamp by the gauge tap by described master controller control, when the timer module when the setting-up time, according to second rated current of described Lawn lamp the output voltage of the described driver module that boosts is connect described Lawn lamp by the gauge tap by described master controller module controls;
Described gauge tap is linked between the power input of described Current limited Control module and Lawn lamp;
Described timer module comprises timer and oscillator, and the external timing capacitor of described oscillator is for timer provides commutator pulse;
Described timer module comprises the time set interface, and its output sends a signal during to setting-up time when timer;
Described Central Control Module comprises makes energy control module and mode control module, the described output that makes the described photo-sensitive cell of input termination of energy control module, when the ambient brightness of the output of described photo-sensitive cell sets value less than minimum, connect the path of described battery to described gauge tap, described mode control module is arranged between described timer module and the described gauge tap, when timer module reaches setting-up time, control described gauge tap and control the work of described LED lamp by the second rated current mode.
2. device for lighting solar lawn according to claim 1 is characterized in that: described battery is a ferric phosphate lithium cell.
3. device for lighting solar lawn according to claim 2 is characterized in that: the maximum input voltage of described battery is 3.6V.
4. device for lighting solar lawn according to claim 2 is characterized in that: the minimum operating voltage of described battery is 2.4V.
5. device for lighting solar lawn according to claim 1 is characterized in that: the minimum setting value of the ambient brightness of the output of described photo-sensitive cell is 10Lux.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101906351A CN101709846B (en) | 2009-09-28 | 2009-09-28 | Device for lighting solar lawn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101906351A CN101709846B (en) | 2009-09-28 | 2009-09-28 | Device for lighting solar lawn |
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| CN101709846A CN101709846A (en) | 2010-05-19 |
| CN101709846B true CN101709846B (en) | 2011-01-05 |
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| CN2009101906351A Active CN101709846B (en) | 2009-09-28 | 2009-09-28 | Device for lighting solar lawn |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074990A (en) * | 2011-01-18 | 2011-05-25 | 厦门马思特光电技术有限公司 | Solar system and charge-discharge control method thereof |
| CN102164443B (en) * | 2011-03-25 | 2013-07-24 | 宁波中博电器有限公司 | Controller for solar street lamp |
| CN102155629A (en) * | 2011-04-08 | 2011-08-17 | 江苏晶正电子有限公司 | Water-proof portable LED (light emitting diode) solar outdoor lamp |
| CN103391656A (en) * | 2012-05-11 | 2013-11-13 | 四川优的科技有限公司 | Solar lawn lamp system |
| US8692470B2 (en) * | 2012-08-13 | 2014-04-08 | LT Lighting (Taiwan) Corp. | Designs for control on solar power system with extreme low energy consumption |
| CN103108449B (en) * | 2012-12-23 | 2016-05-04 | 宁波优而雅电器有限公司 | LED room lighting brightness control system |
| CN103791381A (en) * | 2013-11-20 | 2014-05-14 | 昆山博文照明科技有限公司 | Solar lawn lamp with charging and Bluetooth functions |
| CN110630949B (en) * | 2018-06-05 | 2021-08-17 | 宁波奥莱新星照明电器有限公司 | Solar induction lamp with self-learning function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2508099Y (en) * | 2001-04-29 | 2002-08-28 | 上海交大国飞绿色能源有限公司 | Solar lawn lamp |
| CN2544168Y (en) * | 2002-04-08 | 2003-04-09 | 北京桑普光电技术有限公司 | Solar energy lawn lamp |
| CN2632919Y (en) * | 2003-07-02 | 2004-08-11 | 深圳香江塑料制品有限公司 | Solar glass light |
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2009
- 2009-09-28 CN CN2009101906351A patent/CN101709846B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2508099Y (en) * | 2001-04-29 | 2002-08-28 | 上海交大国飞绿色能源有限公司 | Solar lawn lamp |
| CN2544168Y (en) * | 2002-04-08 | 2003-04-09 | 北京桑普光电技术有限公司 | Solar energy lawn lamp |
| CN2632919Y (en) * | 2003-07-02 | 2004-08-11 | 深圳香江塑料制品有限公司 | Solar glass light |
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| CN101709846A (en) | 2010-05-19 |
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Owner name: SHENZHEN JIAWEI INDUSTRIES CO., LTD. Free format text: FORMER NAME: SHENZHEN JIAWEI SOLAR SOLUTION PROVIDER CO., LTD. |
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Address after: 1902 room 518000, development center building, South Renmin Road, Shenzhen, Luohu District, Guangdong Patentee after: Shenzhen Jiawei Photovoltaic Lighting Co., Ltd. Address before: 1902 room 518000, development center building, South Renmin Road, Shenzhen, Luohu District, Guangdong Patentee before: Shenzhen Jiawei Industries Co., Ltd. |
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Address after: 518000 New Industrial Zone No. 1, 2, 3 and 4, Pingdi Street Center Community, Longgang District, Shenzhen City, Guangdong Province Patentee after: Jiawei New Energy Co., Ltd. Address before: Room 1902, Renmin South Road Development Center Building, Luohu District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Jiawei Photovoltaic Lighting Co., Ltd. |