CN203218970U - Photovoltaic auxiliary mains supply LED lighting device for underground space - Google Patents
Photovoltaic auxiliary mains supply LED lighting device for underground space Download PDFInfo
- Publication number
- CN203218970U CN203218970U CN2013201470683U CN201320147068U CN203218970U CN 203218970 U CN203218970 U CN 203218970U CN 2013201470683 U CN2013201470683 U CN 2013201470683U CN 201320147068 U CN201320147068 U CN 201320147068U CN 203218970 U CN203218970 U CN 203218970U
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- led lamp
- photovoltaic
- lamp group
- voltage
- mains supply
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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Abstract
The utility model discloses an LED lamp power supply device performing automatic switching between a photovoltaic supply and a mains supply. After the mains supply being separated, rectificated, filtered and voltage stabilized, an anode of the mains supply is connected to an anode of one diode. An anode of a photovoltaic array is connected to an anode of the other diode. The two diodes are in parallel connection and cathodes of the two diodes are connected to anodes of an LED lamp group. Cathodes of the LED lamp group are connected to a cathode of a voltage-stabilizing circuit and a cathode of a photovoltaic cell. The LED lamp power supply device performing automatic switching is mainly used for automatic switching between the mains supply and photovoltaic supply. A mains supply voltage-stabilizing value V1 is set in the range of normal DC working voltage of the LED lamp group, and is set closer to a lower limit value of the normal DC working voltage. When illumination is sufficient (V2 > V1) in the daytime, the photovoltaic array provides power for the LED lamp group. At night or when illumination is insufficient in the daytime (V2 < V1), the mains supply rectification voltage-stabilizing circuit provides direct current power for the LED lamp group. When illumination in the daytime fluctuates (V2 > V1 or V2 < V1), the one (the photovoltaic array or the mains supply rectification voltage-stabilizing circuit) with higher voltage is automatically switched on by the device to provide power for the LED lamp group. According to the LED lighting device provided by the utility model, LED illumination cannot be influenced, and economic and efficient utilization of photovoltaic generation is realized.
Description
Technical field
The utility model relates to a kind of device of LED illuminalive power-supply, especially a kind of photovoltaic of LED lamp and civil power automatic switchover electric supply installation.
Background technology
At present, existing photovoltaic generation or power to the underground space as autonomous system, classic algorithm need be reserved 3～5 overcast and rainy battery capacitys, and the life-span of storage battery the overcharging of normal because independent photovoltaic system, cross and put and dwindle greatly, the life-span producer of general photovoltaic module guarantees 20 years even more, and the life of storage battery was everlasting 2～5 years, be equipped with 3～5 times storage battery but also needed to change the life of storage battery 4～9 times, the invisible use cost that increases photovoltaic generation greatly in 20 years in the life cycle at whole photovoltaic so the independent photovoltaic system is not only more.Another approach is to be connected to the grid by inverter behind the photovoltaic generation, power to the underground space by electrical network again, the efficient that this direct current is delivered stream is subjected to many factor affecting and not high, and the inverter that meeting is incorporated into the power networks requires is expensive, and even more important also will be limited by grid company.All there is the problem that cost is too high, application is difficult to promote in two classical pathwaies of above photovoltaic power supply.
The utility model content
The purpose of this utility model is for overcoming the shortcoming of prior art, a kind of photovoltaic and civil power automatic switchover electric supply installation of underground LED lamp being provided.
The purpose of this utility model realizes with following technical proposals:
A kind of photovoltaic of LED lamp and civil power automatic switchover electric supply installation, comprise photovoltaic arrays supply module and civil power direct current supply module, it is characterized in that, the duplex feeding module inserts handover module respectively, described handover module output is connected with LED lamp group, the diode that the parameter that described handover module is linked together by two negative poles is identical is formed, the positive pole of two diodes connects the positive pole of mains-supplied module and photovoltaic arrays supply module respectively, its negative pole connects LED lamp group's positive pole, and the negative pole of photovoltaic arrays supply module and mains-supplied direct current supply module is connected with LED lamp group's negative pole respectively.
The purpose of this utility model can also realize with the technical scheme of following optimization:
A kind of automatic switchover electric supply installation of LED lamp, comprise photovoltaic arrays supply module and civil power direct current supply module, it is characterized in that, the duplex feeding module inserts handover module respectively, described handover module output is connected with LED lamp group, the diode that the parameter that described handover module is linked together by two negative poles is identical is formed, the positive pole of two diodes connects the positive pole of mains-supplied module and photovoltaic arrays supply module respectively, its negative pole connects LED lamp group's positive pole, the negative pole of photovoltaic arrays supply module and mains-supplied direct current supply module is connected with LED lamp group's negative pole respectively, and described mains-supplied direct current input arranges a filter capacitor.
The purpose of this utility model can also realize with the technical scheme of following optimization:
A kind of photovoltaic of LED lamp and civil power automatic switchover electric supply installation, comprise photovoltaic arrays supply module and civil power direct current supply module, it is characterized in that, the duplex feeding module inserts handover module respectively, described handover module output is connected with LED lamp group, the diode that the parameter that described handover module is linked together by two negative poles is identical is formed, the positive pole of two diodes connects the positive pole of mains-supplied module and photovoltaic arrays supply module respectively, its negative pole connects LED lamp group's positive pole, the negative pole of photovoltaic arrays supply module and mains-supplied direct current supply module is connected with LED lamp group's negative pole respectively, described mains-supplied direct current input arranges a filter capacitor, and a regulator rectifier circuit also is set.
The beneficial effects of the utility model are, have both utilized free photovoltaic electric power, and energy-saving and emission-reduction have overcome the defective that the energy storage battery life-span is too short, cost is too high again, and economical and efficient is simple in structure.
Description of drawings
Fig. 1 is the circuit theory diagrams of the automatic switchover electric supply installation of a kind of underground LED lamp of the utility model
Fig. 2 is operating voltage and two-way input voltage graph of a relation
Among Fig. 1,10 is the mains-supplied module, and wherein, 11 is isolating transformer, and 12 are the rectifier bridge heap, and 13 is filter capacitor, and 14 is voltage stabilizing circuit; 20 is handover module, wherein 21 and 22 be respectively two parallel connections diode; 30 photovoltaic arrays supply modules; 40 is LED lamp group, and 41～4n is the LED lamp.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described
In Fig. 1, civil power connects diode 21 positive poles by isolating transformer 11, rectifier bridge heap 12, filter capacitor 13 and voltage stabilizing circuit 14; Photovoltaic arrays supply module 30 connects diode 22 positive poles; Negative pole after diode 21 and 22 parallel connections is connected to LED group 40 positive pole, give LED lamp 41,42 ..., the 4n power supply, the negative pole of LED group 40 negative pole and mains-supplied module 10 and photovoltaic arrays supply module links together.Its course of work is as follows: as shown in Figure 2, Y-axis is magnitude of voltage, the time scale of X-axis day, and V1 and V2 are respectively the output voltages of mains-supplied module and photovoltaic arrays output module, V3 is LED lamp group's operating voltage.When V2＞V1 (daylight abundance), give LED lamp group 40 power supplies by photovoltaic cell square formation supply module 30 by diode 22, V3 voltage follow V2 changes and changes (V2 is owing to be photovoltaic generation, and its excursion is limited and measurable); When V2＜V1 (daylight deficiency or evening), civil power is given LED lamp group 40 power supplies, V3 voltage follow V1 by isolating transformer 11, rectifier bridge heap 12, filter capacitor 13 and voltage stabilizing circuit 14 and diode 2.Determine the power of photovoltaic arrays 30 supply modules and predict its maximum power point voltage V2 according to LED lamp group 40 power requirement during design, purpose is to guarantee as far as possible that illumination is sufficient or owe the normal direct-current working volts scope LED lamp group 40 of maximum power point voltage V2 under the sufficient situation (V3-2～V3-1), guarantee to determine under photovoltaic arrays generating " send out to the greatest extent to the greatest extent with " principle the magnitude of voltage V1 after the voltage stabilizing of commercial power rectification, V1 also should be arranged on (in the scope of V3-2～V3-1).
The utility model solves the automatic switchover problem of civil power, photovoltaic generation, and the technical scheme that adopts is: as shown in Figure 1, LED lamp group 40 direct-current working volts are V3, and its normal range of operation is: V3-1～V3-2; The electric power that photovoltaic cell 31 produces is supplied with LED lamp group 40 by 22, and when photovoltaic electric power was not enough to whole power is provided, its voltage descended; Civil power is stabilized on the direct voltage (V1) that presets after 11,12,13,14, and this direct voltage V1 can give LED lamp group 40 power supplies by diode 21, and the condition that civil power substitutes photovoltaic power supply is: V2＜V1; The day or night of sunlight deficiency, V2 is lower than V1, and civil power is cut power supply automatically, and on sun-drenched daytime, V2 is higher than V1; Realized the automatic switchover of civil power and photovoltaic generation thus and LED lamp group energy obtains the required direct current of operate as normal all the time.The relation of V1, V2, V3 as shown in Figure 2, the X-axis of Fig. 2 is the time scale in certain sky, Y-axis is magnitude of voltage, V3-1, V3-2 are maximum, the minimum values of normal direct-current working volts of the LED lamp group 40.
Claims (3)
1. the photovoltaic of a LED lamp and civil power automatic switchover electric supply installation, comprise photovoltaic arrays supply module and civil power direct current supply module, it is characterized in that, the duplex feeding module inserts handover module respectively, described handover module output is connected with LED lamp group, the diode that the parameter that described handover module is linked together by two negative poles is identical is formed, the positive pole of two diodes connects the positive pole of mains-supplied module and photovoltaic arrays supply module respectively, its negative pole connects LED lamp group's positive pole, and the negative pole of photovoltaic arrays supply module and mains-supplied direct current supply module is connected with LED lamp group's negative pole respectively.
2. the photovoltaic of LED lamp as claimed in claim 1 and civil power automatic switchover electric supply installation is characterized in that, described mains-supplied direct current input arranges a filter capacitor.
3. require photovoltaic and the civil power automatic switchover electric supply installation of 1 or 2 described LED lamps as the right art, it is characterized in that, a regulator rectifier circuit also is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201470683U CN203218970U (en) | 2013-03-28 | 2013-03-28 | Photovoltaic auxiliary mains supply LED lighting device for underground space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201470683U CN203218970U (en) | 2013-03-28 | 2013-03-28 | Photovoltaic auxiliary mains supply LED lighting device for underground space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203218970U true CN203218970U (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201470683U Expired - Fee Related CN203218970U (en) | 2013-03-28 | 2013-03-28 | Photovoltaic auxiliary mains supply LED lighting device for underground space |
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| CN (1) | CN203218970U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104500A (en) * | 2017-05-09 | 2017-08-29 | 广州番禺巨大汽车音响设备有限公司 | A kind of high efficiency storage battery power supply method and system under pull bar sound equipment |
-
2013
- 2013-03-28 CN CN2013201470683U patent/CN203218970U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104500A (en) * | 2017-05-09 | 2017-08-29 | 广州番禺巨大汽车音响设备有限公司 | A kind of high efficiency storage battery power supply method and system under pull bar sound equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20200328 |
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| CF01 | Termination of patent right due to non-payment of annual fee |