CN204068852U - Photovoltaic DC power supply - Google Patents
Photovoltaic DC power supply Download PDFInfo
- Publication number
- CN204068852U CN204068852U CN201420286758.1U CN201420286758U CN204068852U CN 204068852 U CN204068852 U CN 204068852U CN 201420286758 U CN201420286758 U CN 201420286758U CN 204068852 U CN204068852 U CN 204068852U
- Authority
- CN
- China
- Prior art keywords
- power supply
- photovoltaic
- power
- cell
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model provides a kind of photovoltaic DC power supply, comprises photovoltaic module, power governor, direct current input and direct current and exports.Photovoltaic module electricity becomes direct current of voltage regulation output through the voltage transitions of power governor.The electricity that direct current inputs directly exports without the conversion of power governor.The power supply of more than two exports by prime the mode inputted as rear class and connects successively, forms photovoltaic electric subject string, provides larger power.This photo-voltaic power supply or power supply string are also connected with the output of other DC power supply by direct-flow input end, realize photo-voltaic power supply and other power supply hybrid power supply.
Description
Technical field
The utility model is a kind of photovoltaic DC power supply, belongs to photovoltaic generation and technical field of direct current power.
Background technology
Use galvanic household electrical appliances and electronic product as liquid crystal display, mobile phone, panel computer, digital camera, the equipment such as USB fan need DC power supply.Photovoltaic cell is the device utilizing photovoltaic effect to be electric energy by transform light energy.The output of photovoltaic cell is direct current.Because photovoltaic generation has pollution-free, resourceful feature, so photovoltaic cell is suitable as outdoor DC power supply.
According to the difference of the photoelectric conversion material of photovoltaic cell, photovoltaic cell can be divided into crystal silicon cell (to comprise monocrystalline silicon battery, polycrystal silicon cell and hetero-junction solar cell), amorphous silicon/micro-crystalline silicon cell, cadmium telluride cells, chalcopyrite (such as Copper Indium Gallium Selenide) battery, organic battery, dye-sensitized cell, quantum dot cell, iii-v battery, the types such as laminated cell.Except laminated cell, the maximum voltage that single photovoltaic cell exports is subject to the restriction of the energy gap of light absorbent in photovoltaic cell, usually below 1 volt, so the photovoltaic cell usually containing multiple series connection in photovoltaic DC power supply.
Photovoltaic cell is easily subject to external climate factor, the impact of such as oxygen, water vapour, ultraviolet, external force, thunder and lightning etc. and aging to such an extent as to lost efficacy; The photovoltaic cell of therefore connecting needs with ability Long-Time Service after weatherable materials encapsulation.The photovoltaic cell of series connection is encapsulated the photovoltaic battery panel formed, be called as photovoltaic module.
Common Crystalline Silicon PV Module has the layer structure as sandwich.From front (sensitive surface) to the back side (shady face) is front panel, encapsulating film first, crystal silicon photovoltaic cell, encapsulating film second and backboard successively.Front panel is wherein generally low iron toughened glass, encapsulating film first, second is generally polyvinyl acetate ethene, backboard is generally PETG film, or the composite membrane of PETG film and pvf film (or polyvinylidene fluoride film).On assembly four limit, usually there is the frame of aluminium alloy.Usually have terminal box and connector in the outside of backboard, the both positive and negative polarity of photovoltaic cell string is introduced in terminal box respectively, then is connected with external circuit by connector.
Although photovoltaic cell has pollution-free, resourceful advantage, uses photovoltaic module as DC power supply, and same exist two unfavorable factors.One is that the output of photovoltaic cell is unstable, and the output voltage of photovoltaic cell, electric current and power produce larger change with the impedance variation of output loading, light intensity change, light relative to factors such as the change of assembly incidence angle and cloud layer or shade block.Two is that the power density of photovoltaic cell is on the low side.The photovoltaic cell of every square centimeter can only provide the power stage of 10 to 20 milliwatts in the sun usually.As the application of photovoltaic DC power supply, need to solve stable output and this two problems of power expansion.
Summary of the invention
The utility model provides a kind of photovoltaic DC power supply as shown in Figure 1.This power supply comprises photovoltaic module, power governor, direct current input and direct current and exports.The DC voltage converting circuit of the electricity that photovoltaic module produces in power governor, becomes the direct current of voltage stabilization, is exported by DC output end.The electricity that direct current inputs directly exports from DC output end without the voltage transitions of power governor.
Power governor in the utility model has the effect of voltage stabilizing.When photovoltaic module output voltage changes owing to being subject to the factor such as load impedance and cloud cover, power governor by DC voltage converting circuit by the stable output of photo-voltaic power supply setting scope in.
In the utility model, the DC output end of a photo-voltaic power supply, can be connected to the direct-flow input end of another photo-voltaic power supply.The photo-voltaic power supply of more than two or two, can connect in this manner successively, forms photovoltaic electric subject string, thus exports larger power, as shown in Figure 2.Connected mode between power supply comprises directly connecting and is connected with by wire or adapter.
In the utility model, meet other DC power supply of following condition, the direct-flow input end of photo-voltaic power supply or photovoltaic electric subject string can be connected to, thus realize the hybrid power supply of photo-voltaic power supply and other power supply, as shown in Figure 3.These conditions are: 1. the output voltage of this DC power supply is no more than photovoltaic DC electric power output voltage 1.1 times.2. this DC power supply has counterflow-preventing protection.
Photovoltaic module in the utility model, comprise all use crystal silicon photovoltaic cells and (comprise monocrystalline silicon battery, polycrystal silicon cell and hetero-junction solar cell), amorphous silicon/micro-crystalline silicon cell, cadmium telluride cells, chalcopyrite (such as Copper Indium Gallium Selenide) battery, organic battery, dye-sensitized cell, quantum dot cell, the photovoltaic module of one or more batteries in iii-v battery and laminated cell.
DC voltage converting circuit in the utility model, comprises all output voltages not higher than boost conversion, step-down conversion and the buck change-over circuit of 20 volts.To point out especially, the power governor in the utility model, comprise and there is maximum photovoltaic power point tracing control function and not there are maximum photovoltaic power point following function two kinds of situations.
Direct-flow input end in the utility model and output, comprise the DC port that all rated voltages are no more than 20 volts, as onboard charger interface, various notebook computer interface, the Lightning Dock interface of Apple, and allly meet USB1.0, USB1.1, USB2.0, USB3.0, the USB interface of USB3.1 or USB PD standard
Photovoltaic DC power supply in the utility model has DC voltage-stabilizing and exports and the extendible characteristic of power.Photovoltaic DC power supply string pattern produces the power larger than single photo-voltaic power supply, can be used for the load driving rated power larger, quick charge, and direct current need for electricity when intensity of illumination is not enough.
The hybrid power supply pattern of the photo-voltaic power supply in the utility model or power supply string and other power supply, produces than photo-voltaic power supply or the larger gross output of power supply string.When the power output of photo-voltaic power supply changes due to intensity of illumination change, other external power supply can make gross output relatively stable.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is the photo-voltaic power supply string pattern schematic diagram in the utility model.
Fig. 3 is the schematic diagram of other DC power supply in the utility model and photovoltaic electric subject string hybrid power supply pattern.
Fig. 4 is the structural representation of a specific embodiment of the present utility model.
Fig. 5 is the circuit diagram of a specific embodiment of the present utility model
Embodiment
The structure of a specific embodiment of the present utility model as shown in Figure 4, is equipped with power governor 20 on the left of the back side of photovoltaic module 10.There are USB output 30 in the left surface central authorities of power governor 20, and there is Micro USB input 40 another side of power governor 20.
Photovoltaic module in this embodiment adopts 15 52 millimeters to take advantage of the polysilicon photovoltaic cells of 52 millimeters to connect, battery strings tow sides with the encapsulation of polyvinyl acetate ethene, are all glass (front) and PETG (reverse side) in the outside of polyvinyl acetate ethene respectively.The voltage output range of this assembly is 0 to 9.5 volts.
The circuit diagram of this specific embodiment as shown in Figure 5.Voltage conversion circuit in power-supply controller of electric uses direct current transformation chip TPS63060.Can stablize in the wide input range of 2.5 to 12 volts and export 5V voltage.Conversion efficiency is up to 93%.
Claims (8)
1. solar energy is converted into the photovoltaic DC power supply of direct current voltage stabilizing output by one kind, it is characterized in that containing photovoltaic module, power governor, direct-flow input end and DC output end, the electric current that photovoltaic module produces is exported by DC output end after the DC voltage converting circuit in power governor, and the electric current of direct-flow input end input directly exports from DC output end without power governor.
2. photovoltaic DC power supply according to claim 1, is characterized in that the input of described power supply can be connected with the output of power supply described in another, and connected mode comprises directly connecting and is connected with by wire or adapter.
3. photovoltaic DC power supply according to claim 1, is characterized in that the input of described power supply can be connected with the output of other DC power supply, and connected mode comprises directly connecting and is connected with by wire or adapter.
4. photovoltaic DC power supply according to claim 1, is characterized in that described photovoltaic module, comprises all use monocrystalline silicon photovoltaic cells, polycrystal silicon cell, silicon/crystalline silicon heterogenous junction battery, amorphous silicon/micro-crystalline silicon cell, cadmium telluride cells, chalkopyrite cells, copper indium diselenide battery, copper indium sulphur battery, copper indium gallium selenide cell, organic battery, dye-sensitized cell, quantum dot cell, the photovoltaic module of iii-v battery or laminated cell.
5. photovoltaic DC power supply according to claim 1, is characterized in that described DC voltage converting circuit, comprises all output voltages not higher than boost conversion, step-down conversion and the buck change-over circuit of 20 volts.
6. photovoltaic DC power supply according to claim 1, is characterized in that described power governor has maximum photovoltaic power point tracing control function.
7. photovoltaic DC power supply according to claim 1, is characterized in that described power governor does not have maximum photovoltaic power point tracing control function.
8. photovoltaic DC power supply according to claim 1, it is characterized in that described direct-flow input end and DC output end, comprise the DC port that all rated voltages are no more than 20 volts, as onboard charger interface, various notebook computer interface, the Lightning Dock interface of Apple, and meet USB1.0, USB1.1, USB2.0, the USB interface of USB3.0, USB3.1 or USB PD standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286758.1U CN204068852U (en) | 2014-05-30 | 2014-05-30 | Photovoltaic DC power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286758.1U CN204068852U (en) | 2014-05-30 | 2014-05-30 | Photovoltaic DC power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204068852U true CN204068852U (en) | 2014-12-31 |
Family
ID=52210292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420286758.1U Expired - Fee Related CN204068852U (en) | 2014-05-30 | 2014-05-30 | Photovoltaic DC power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204068852U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019136951A1 (en) * | 2018-01-09 | 2019-07-18 | 赵振翔 | Solar-powered intelligent apparatus |
-
2014
- 2014-05-30 CN CN201420286758.1U patent/CN204068852U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019136951A1 (en) * | 2018-01-09 | 2019-07-18 | 赵振翔 | Solar-powered intelligent apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203434928U (en) | Portable solar charger | |
| CN204315597U (en) | Light-duty photovoltaic cell component | |
| CN203434927U (en) | Curly folding type solar cell charging panel | |
| US9831826B2 (en) | Display substrate and display device | |
| CN203987438U (en) | A kind of solar energy curtain | |
| CN204068852U (en) | Photovoltaic DC power supply | |
| CN204632785U (en) | A kind of photovoltaic module | |
| CN106788218A (en) | A kind of many terminal box solar components | |
| CN205375197U (en) | High condensation light grid -connected PV power generation system | |
| CN207283242U (en) | A kind of intelligent terminal with photovoltaic module | |
| CN208352995U (en) | A kind of flexible intelligent charging assembly | |
| CN207704393U (en) | A kind of intelligent terminal with solar cell module | |
| CN204068815U (en) | There is the photovoltaic DC power supply of MPPT maximum power point tracking function | |
| CN105577112A (en) | Intelligent solar photovoltaic junction box based on Internet of Things | |
| CN202025765U (en) | Efficient crystalline silica solar energy cell structure | |
| CN203826989U (en) | High-power solar photovoltaic power generation system | |
| CN205545139U (en) | Intelligence terminal box for solar photovoltaic based on thing networking | |
| CN110365060A (en) | A kind of photovoltaic generating system | |
| CN205920979U (en) | Solar power generation system | |
| CN110165006A (en) | A kind of crystal silicon photovoltaic cell connection group of polarity complementation | |
| CN204012743U (en) | A kind of novel high-power solar energy photovoltaic generator | |
| CN203690943U (en) | Photovoltaic off-grid/grid-connection integrated control system | |
| CN104716694B (en) | A kind of power compensation device and method based on solar cell | |
| CN206727951U (en) | A kind of solar energy power accumulating system for microwave dryer | |
| CN218734188U (en) | Photovoltaic module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 200003, room 1, No. 355, Lane 2303, West Beijing Road, Shanghai, Huangpu District Patentee after: Zheng Zhi Address before: 200030 Shanghai city Xuhui District South Wanping Road 388 Lane 4, room 602 Patentee before: Zheng Zhi |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20190530 |