CN204131447U - Solar telephone power supply - Google Patents
Solar telephone power supply Download PDFInfo
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- CN204131447U CN204131447U CN201420428310.9U CN201420428310U CN204131447U CN 204131447 U CN204131447 U CN 204131447U CN 201420428310 U CN201420428310 U CN 201420428310U CN 204131447 U CN204131447 U CN 204131447U
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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
- Y02B10/10—Photovoltaic [PV]
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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
- 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
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Abstract
A kind of solar telephone power supply, belong to technical field of solar batteries, comprise solar battery group and peripheral circuit, solar battery group is laid along the outside of vehicle body, connected by the solar battery cell of one or more GaAs base and/or parallel connection is formed, wherein each solar battery cell comprises the back sheet be made up of metal level and heat conduction back sheet arranged below the metal electrode layer and device layer that arrange above device layer, device layer; Peripheral circuit is electrically connected with solar battery group, comprises control circuit.The utility model is a kind of high-efficiency soft solar cell, solve that existing solar telephone power supply electricity conversion is low, low light level poor performance, wide-angle lighting are poor, heat dispersion is poor, soft not and problems such as heavier-weight, perfection can be integrated in car surface, in addition, can well dispel the heat when summer, burning sun was exposed to the sun, to avoid temperature in car body too high.Also be applicable on bus, bus, top of building and Chaoyang curtain.
Description
Technical field
The utility model relates to technical field of solar batteries, particularly relates to a kind of high-efficiency soft and the good solar telephone power supply of oriented heat dissipating.
Background technology
According to the latest data that Traffic Administration Bureau of the Ministry of Public Security issues, by the end of the year 2013, national motor vehicles for civilian use recoverable amount will have reached 1.37 hundred million, and there is the automobile quantity in 31 cities in the whole nation more than 1,000,000.Wherein the automobile of Beijing, Shanghai and Tianjin is respectively 530,247.49 and 258.9 ten thousand.The automobile sharply increased not only consumes many non-renewable petroleum resources, and discharged the pollutants such as a large amount of hydrocarbon, oxynitrides, carbon monoxide, sulfur dioxide, lead-containing compounds, Benzpyrene and solid particulate matter, be one of PM 2.5 pollutant sources, therefore a lot of vehicles manufacturer to the demand of the clean energy resourcies such as solar cell strongly.
Although Honda Motor company just successfully developed the Honda Dream automobile that solar cell drives as far back as 1996, its speed per hour reaches 85 kilometers per hour.But because solar battery efficiency is lower and the very high factor restriction of battery cost, can not meet the daily life of ordinary people, therefore solar cell is generally as the accessory power supply of automobile especially electric automobile.Chinese patent ZL03278117.2 and CN1794472 A discloses solar cell louver and manufacture method thereof, and patent CN103700717 A has then invented a kind of thin film solar photovoltaic automobile windscreen assembly based on translucent silica-based solar cell.These patents only relate to be integrated in the translucent silicon-based film solar cells on the skylight of automobile and windshield, and its photoelectric conversion efficiency is low, is not desirable clean energy resource.
Along with the progress of semiconductor epitaxial technology and battery processing technology, reach more than 40% based on the photoelectric conversion efficiency of many knot Group III-V semiconductor solar cells in optically focused situation, be expected to realize the electric automobile of solar cell as electrical source of power.Ha Yeke Engineering Shares Co., Ltd of Switzerland relate to the electric automobile of a kind of solar cell as major impetus at the utility model patent CN202115372U that China applies for, wherein have employed concentration photovoltaic system, namely the complicated photovoltaic device array of many pn junction p ns structure and light concentrator array is comprised, it is with high costs and require harsh to solar angle degree, sunlight is best perpendicular to performance battery operated during cell panel, otherwise battery efficiency sharply declines.
The patent of applying for before our company, publication No. is the preparation method of a kind of III-V compounds of group electronic device of CN103258913, disclose solar cell and comprise device layer and back sheet, this back sheet comprises the metal level bondd with device layer and the heat conduction back sheet adhered on metal level, but, though metal level and heat conduction back sheet all have certain thermal conductivity, but for the solar cell be directly attached on automobile case, higher requirement is had to its thermal diffusivity, especially, when summer, burning sun was exposed to the sun, the temperature in car body can rise to very high.
Because when automobile mounted electrical equipment and engine thereof run, power consumption is higher, car body is actual can the finite surface area of load solar cell power generation, so must could play substantial role to the increase of flying power by high performance solar batteries.The efficiency of the flexible thin-film solar cells such as general amorphous silicon battery and Copper Indium Gallium Selenide (CIGS), respectively between 5%-8% and 11%-14%, can not meet real-time high-efficiency power reguirements.
utility model content
For this reason, technical problem to be solved in the utility model is that existing solar telephone power supply photoelectric conversion efficiency is low, low light level poor performance, wide-angle lighting are poor, heat dispersion is poor, thus proposes a kind of high-efficiency soft and have the GaAs base solar automobile power source of heat sinking function.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A kind of solar telephone power supply, comprise solar battery group and peripheral circuit, solar battery group is laid along the outside of vehicle body, connected by the solar battery cell of one or more GaAs base and/or parallel connection is formed, wherein each solar battery cell comprises and can absorb sunlight and produce the back sheet be made up of metal level and heat conduction back sheet arranged below the metal electrode layer and device layer that arrange above the device layer of electric energy, device layer; Peripheral circuit is electrically connected with described solar battery group, comprises control circuit.
As optimization, peripheral circuit also comprises the liquid crystal display screen that can show solar telephone power work state information in real time, and liquid crystal display screen is electrically connected with each block solar battery cell and control circuit.
As optimization, control circuit comprises electric current and voltage control chip, by-pass switch and blocking diode, the positive pole of blocking diode connects a solar cell, negative pole connects storage battery, and electric current and voltage control chip is connected between solar cell and blocking diode positive pole by by-pass switch.
As optimization, control circuit also comprises voltage stabilizing didoe, and the negative pole of voltage stabilizing didoe is connected with solar cell, positive pole is connected with the positive pole of blocking diode.
As optimization, also comprise MPPT maximum power point tracking device, MPPT maximum power point tracking device is connected respectively with solar cell, liquid crystal display screen and electric current and voltage control chip.
As optimization, in solar battery cell, have directed heat-conducting layer in the arranged outside of described back sheet, directed heat-conducting layer comprises the some heat conductive filaments extended along one or more direction, heat conductive filament connects outside heat abstractor.
As optimization, heat conductive filament comprises wire or carbon fiber or its and combines.
As optimization, directed heat-conducting layer is the conductive fabric be made up of horizontal and vertical wire, carbon fiber or its combination.
As optimization, directed heat-conducting layer is the conductive fabric be made up of with thermal conductive polymer horizontal and/or longitudinal wire, carbon fiber or its combination.
As optimization, directed heat-conducting layer is bonded in the outside of back sheet by heat-conducting glue.
As optimization, device layer comprises the unijunction, the binode that are made up of Ⅲ-Ⅴ compound semiconductor material or ties laminated construction more, and described device layer thickness is 1-20 μm.
Technique scheme of the present utility model has the following advantages compared to existing technology:
1. the utility model provides a kind of solar telephone power supply, and first, solar battery group is laid along the outside of vehicle body, can ideally be integrated on automobile case or protective sleeve, do not affect automobile attractive in appearance while also do not destroy aerodynamic design.Secondly, solar battery group 8 is connected by the solar battery cell of one or more GaAs base and/or parallel connection is formed, based on the high-efficiency soft GaAs based solar battery that epitaxial lift-off is developed, its most high-photoelectric transformation efficiency is more than 28%, the efficiency of solar battery group can reach more than 25%, and can absorb the cloudy low light level or scattering sunlight even room light efficiently, in addition, its material only tens microns, has good flexibility.Wherein each solar battery cell comprises the back sheet be made up of metal level and heat conduction back sheet that can arrange below efficient absorption sunlight the producing metal electrode layer and device layer that arrange above the device layer of electric energy, device layer.Metal level can as another electrode layer, can supporting device layer, prevent device layer broken, also there is heat conduction function.And heat conduction back sheet together with metal level as the thermal component of solar cell.Peripheral circuit is electrically connected with solar battery group, comprises control circuit, can export suitable stable current/voltage accumulators.The circuit structure of the series connection of above-mentioned solar battery cell and/or parallel-connection structure and peripheral circuit is all design according to the input voltage of the engine in the photovoltaic performance parameter of solar cell and automobile and electronic equipment and current requirements.
2. solar telephone power supply described in the utility model, its peripheral circuit also comprises the liquid crystal display screen that can show solar telephone power work state information in real time, and liquid crystal display screen is electrically connected with each block solar battery cell and control circuit.The output voltage of the voltage of each block GaAs based solar battery unit, current signal and control circuit and current signal are shown.The operating state of each block of Real-Time Monitoring GaAs based solar battery unit and whole solar telephone power-supply system, is also convenient to malfunction monitoring and maintenance simultaneously.
3. solar telephone power supply of the present utility model, its control circuit comprises electric current and voltage control chip, by-pass switch and blocking diode, the positive pole of blocking diode connects a solar cell, negative pole connects storage battery, the effect of blocking diode be can forward conduction with the while of to charge in batteries, storage battery can also be prevented to the reverse electric discharge of solar cell.Electric current and voltage control chip is connected between described solar cell and blocking diode positive pole by by-pass switch, can control being turned on or off of solar cell loop as required.When storage battery is full of electricity, electric current and voltage control chip sends instruction, closes bypass switch, makes the short circuit of solar cell loop, no longer charges to storage battery; When storage battery quantity not sufficient, electric current and voltage control chip sends instruction, bypass switch opens, makes the conducting of solar cell loop, with to charge in batteries.
4. the utility model solar telephone power supply, due to electric current being changed significantly along with intensity of illumination that solar cell produces, therefore need series voltage stabilizing diode on solar cell loop, the negative pole of voltage stabilizing didoe is connected with solar cell, positive pole is connected with the positive pole of blocking diode.Voltage stabilizing didoe works under reverse bias voltage, even if the electric current that solar cell produces has certain fluctuation, also can export constant voltage, ensures the voltage of solar cell and assembly stable output thereof.
5. solar telephone power supply described in the utility model, also comprises MPPT maximum power point tracking device, and MPPT maximum power point tracking device is connected respectively with solar cell, liquid crystal display screen and electric current and voltage control chip.MPPT maximum power point tracking device (MPPT) be used for detect solar cell operating state and result is outputted to liquid crystal display screen display, when certain block solar cell illumination significantly dies down or is covered by shade, the MPPT maximum power point tracking device that solar cell connects therewith can send signal to electric current and voltage control chip, and electric current and voltage control chip controls closed corresponding by-pass switch.Solve solar cell in the uneven situation of light power dissipation concerns, and the power output instability problem under different illumination conditions, ensure that the Effec-tive Function of whole solar telephone power supply.
6. the utility model solar telephone power supply, in solar battery cell wherein, have directed heat-conducting layer in the arranged outside of described back sheet, directed heat-conducting layer comprises the some heat conductive filaments extended along one or more direction, heat conductive filament connects outside heat abstractor.Solar cell is integrated into after on car body, heat conductive filament can be utilized to export on heat abstractor by heat orientation, avoid being delivered on car body, cause vehicle interior temperature too high.Heat conductive filament comprises wire or carbon fiber or its and combines.Directed heat-conducting layer is the conductive fabric be made up of horizontal and vertical wire, carbon fiber or its combination.Wire and carbon fiber have anisotropic thermal conductivity energy significantly, and wire is for copper wire, and its axial thermal conductivity is 396 W/m.k, and the axial thermal conductivity of carbon fiber is 700 W/m.k.Therefore by heat directional transmissions to radiator, the oriented heat dissipating effect of solar cell can be improve.In addition, the tensile modulus of elasticity of copper wire and carbon fiber reaches 100 Gpa and 230 Gpa respectively, while guarantee solar cell flexible, can strengthen its tensile strength.
7. the utility model solar telephone power supply, in solar battery cell wherein, directed heat-conducting layer is the conductive fabric be made up of with thermal conductive polymer horizontal and/or longitudinal wire, carbon fiber or its combination.Thermal conductive polymer is insulating material, and when being integrated on car body by battery, that can avoid battery is electrically communicated on car body, ensures human-body safety.
8. the utility model solar telephone power supply, device layer comprises the unijunction, the binode that are made up of Ⅲ-Ⅴ compound semiconductor material or ties laminated construction more, and described device layer thickness is 1-20 μm.By regulating the component of Group III-V compound semiconductor material, the electricity conversion of solar cell can be made higher than 25%.Owing to peeling off the heavy and backing material of rigidity, the device layer thickness of GaAs based solar battery only about 10 μm and weight is also only original about 1/10th, and therefore flexible solar battery can ideally be integrated on automobile case or dust cover.
Accompanying drawing explanation
Fig. 1 is the circuit integrity structural schematic block diagram of the utility model solar telephone power supply;
Fig. 2 is the internal structure schematic diagram of solar battery cell in the utility model;
Fig. 3 is the optimization internal structure schematic diagram of solar battery cell in the utility model;
Fig. 4 is the schematic diagram that solar battery group of the present utility model is integrated into car surface.
In figure, Reference numeral is expressed as: 1-heat conductive filament, the directed heat-conducting layer of 2-, 3-heat conduction back sheet, 4-metal level, 5-device layer, 6-metal electrode layer, 7-heat abstractor, 8-solar battery group, 10-control circuit, 12-liquid crystal display screen.
Embodiment
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail.
As shown in Figure 1, a kind of solar telephone power supply, comprises solar battery group 8 and peripheral circuit.As shown in Figure 4, solar battery group 8 is laid along the outside of vehicle body, can ideally be integrated on automobile case or protective sleeve, do not affect automobile attractive in appearance while also do not destroy aerodynamic design.Solar battery group 8 is connected by the solar battery cell of one or more GaAs base and/or parallel connection is formed, based on the high-efficiency soft GaAs based solar battery that epitaxial lift-off is developed, its most high-photoelectric transformation efficiency is more than 28%, the efficiency of solar battery group can reach more than 25%, and the cloudy low light level or scattering sunlight even room light can be absorbed efficiently, in addition, its material only tens μm, has good flexibility.Wherein each solar battery cell comprises the back sheet be made up of metal level 4 and heat conduction back sheet 3 that can arrange below efficient absorption sunlight the producing metal electrode layer 6 and device layer 5 that arrange above the device layer 5 of electric energy, device layer 5.Metal level 4 can be Copper Foil, and its thickness is 5-30 μm, can be used as another electrode layer, also can be used to supporting device layer 5, prevents device layer 5 broken.In addition, metal level 4 has good thermal diffusivity, can as the thermal component of solar cell together with heat conduction back sheet 3.Because the solar energy of 25-40% is converted to electric energy by solar cell, so the solar energy being delivered to car body generally can, lower than the solar energy be directly exposed under burning sun, when car body temperature is not too high, can directly use above-mentioned metal level 4 as the carrier of device layer 5.
Peripheral circuit is electrically connected with solar battery group 8, comprises power supply adaptor, and power supply adaptor comprises control circuit 10, can export suitable stable current/voltage accumulators.
The circuit structure of the series connection of above-mentioned solar battery cell and/or parallel-connection structure and peripheral circuit is all design according to the input voltage of the engine in the photovoltaic performance parameter of solar cell and automobile and electronic equipment and current requirements.The supply power voltage of automobile power source is between 6-48 V, electric current is between hundreds of milliampere (mA) to tens amperes (A), general automotive voltage is designed to 24 V, 36 V or 48 V, the output voltage of the solar cell shown in Fig. 2 and Fig. 3 is about 1 V, every square centimeter of electric current produced is 28.67 mA, if need the supply power voltage of 36 V, need, by 36 pieces of solar battery cell series connection, also to need solar battery cell parallel connection to improve supply current to hundreds of mA even 30 A simultaneously.
In the peripheral circuit of the present embodiment solar telephone power supply, as shown in Figure 1, also comprise the liquid crystal display screen 12 that can show solar telephone power work state information in real time, liquid crystal display screen 12 is electrically connected with each block solar battery cell and control circuit 10.The output voltage of the voltage of the solar battery cell of each block GaAs base, current signal and power supply adaptor 11 control circuit 10 and current signal are shown, the operating state of each block of Real-Time Monitoring GaAs based solar battery unit and whole solar telephone power-supply system, is also convenient to malfunction monitoring and maintenance simultaneously.
The control circuit 10 of the present embodiment solar telephone power supply comprises electric current and voltage control chip, by-pass switch and blocking diode, the output port storage battery that positive pole connects solar cell, negative pole connects solar cell of blocking diode, the effect of blocking diode be can forward conduction with the while of to charge in batteries, storage battery can also be prevented to the reverse electric discharge of solar cell.Electric current and voltage control chip is connected between solar cell and blocking diode positive pole by by-pass switch, can control being turned on or off of solar cell loop as required.As shown in Figure 1, solar cell M
1, solar cell M
2, solar cell M
3, d
1, d
2and d
3be blocking diode, its effect is forward conduction to storage battery can be prevented the while of charge in batteries to solar cell reverse charging.Switch S
1, switch S
2, switch S
3three by-pass switches.When storage battery is full of electricity, electric current and voltage control chip sends instruction, Closing Switch S
1, switch S
2, switch S
3, make solar cell M
1, solar cell M
2, solar cell M
3loop short circuit, no longer to charge in batteries; When storage battery quantity not sufficient, electric current and voltage control chip sends instruction, cut-off switch S
1, switch S
2and switch S
3, make the conducting of solar cell loop, to charge in batteries.
Above-mentioned control circuit 10 can also pass through electric current and voltage control chip control switch S
1, S
2and S
3disconnection and conducting change input storage battery electric current and voltage, meet different charge in batteries requirements.As the one optimization to above-described embodiment, transformer can also be set at the output of control circuit 10 and change output voltage as required.
Due to electric current being changed significantly along with intensity of illumination that solar cell produces, in order to make the voltage of the solar cell energy stable output of the present embodiment solar telephone power supply, control circuit is also provided with voltage stabilizing didoe, and the positive pole of voltage stabilizing didoe is connected with solar cell, negative pole is connected with the positive pole of blocking diode.Voltage stabilizing didoe works under reverse bias voltage, even if the electric current that solar cell produces has certain fluctuation, also can export constant voltage, thus ensures that solar cell and assembly thereof produce stable output voltage.As shown in Figure 1, solar cell M
1, solar cell M
2, solar cell M
3respectively with voltage stabilizing didoe zd
11, voltage stabilizing didoe zd
21with voltage stabilizing didoe zd
31series connection.In addition, multiple voltage stabilizing didoe of can connecting in same solar cell loop, as at solar cell M
1series voltage stabilizing diode zd on loop
11, voltage stabilizing didoe zd
12, voltage stabilizing didoe zd
13voltage stabilizing didoe zd
1nn voltage stabilizing didoe altogether, to improve the output voltage in solar cell loop.
Above-mentioned solar cell M
1, solar cell M
2, solar cell M
3and solar cell M
nbe attached to roof C respectively
1, hood C
2, car door C
3, case cover C
4, back wheels of vehicle upper body C
5with car front-wheel upper body C
6on, as shown in Figure 4.
Generally speaking, the photoelectric efficiency of the solar battery group be in series is determined by the battery unit that photoelectric current is the most weak.Because each position of vehicle body is different at solar illumination strength conditions, covered by shade or photoelectric current that the solar cell of sunlight oblique incidence produces much smaller than just to the photoelectric current that the battery of the sun produces, thus cause battery efficiency sharply to decline.Therefore need at each battery pack M
1, M
2, M
3m
ntwo ends connect a MPPT maximum power point tracking device (MPPT) detect its operating state in real time and result is outputted to liquid crystal display screen display, MPPT significantly dies down in a certain solar cell illumination, during as covered by shade, sends instruction closes bypass switch S
1, S
2, S
3or S
n, avoid causing whole solar cell system power supplying efficiency to decline.Solve solar cell in the uneven situation of light power dissipation concerns, and the power output instability problem under different illumination conditions, ensure that the Effec-tive Function of whole solar telephone power supply.MPPT maximum power point tracking device in the present embodiment is connected respectively with solar cell, liquid crystal display screen and electric current and voltage control chip.
In order to improve the directed thermal conductivity of the solar telephone power supply that the present embodiment provides, in solar battery cell, as shown in Figure 3, directed heat-conducting layer 2 is had in the arranged outside of described back sheet, directed heat-conducting layer 2 comprises the some heat conductive filaments 1 extended along one or more direction, and heat conductive filament 1 connects outside heat abstractor 7.Solar cell is integrated into after on car body, heat conductive filament 1 can be utilized by heat directional transmissions on heat abstractor 7, avoid being delivered on car body, cause car body temperature too high.
In order to improve the directed thermal conductivity of the solar cell that the present embodiment provides, the above-mentioned heat conductive filament in the utility model solar telephone power supply is designed to wire or carbon fiber or its and combines.Wire and carbon fiber have anisotropic thermal conductivity energy significantly, and wire is for copper wire, and its axial thermal conductivity is 396 W/m.k, and the axial thermal conductivity of carbon fiber is 700 W/m.k.Therefore by heat directional transmissions to heat abstractor 7, the oriented heat dissipating effect of solar cell can be improve.Directed heat-conducting layer 2 also can for the conductive fabric be made up of horizontal and vertical wire, carbon fiber or its combination.The tensile modulus of elasticity of copper wire and carbon fiber reaches 100 Gpa and 230 Gpa respectively, while guarantee solar cell flexible, can strengthen its tensile strength.
Fax in order to avoid solar battery group is passed on car body affects safety, as the optimization to the present embodiment, directed heat-conducting layer 2 is designed to the conductive fabric be made up of with thermal conductive polymer horizontal and/or longitudinal wire, carbon fiber or its combination.Thermal conductive polymer is insulating material, and when being integrated on car body by battery, that can avoid battery is electrically communicated on car body, ensures human-body safety.
The solar telephone power supply that the utility model embodiment provides, its directed heat-conducting layer 2 is bonded in the outside of back sheet by heat-conducting glue, also can be fixed on the outside of back sheet by other conducting adhesive material.
Device layer 5 in the present embodiment solar telephone power supply comprises the unijunction, the binode that are made up of Ⅲ-Ⅴ compound semiconductor material or ties laminated construction more, Group III-V semiconductor solar cell comprises GaAs usually, AlAs, GaInP, AlGaInP, the binary such as GaInAs or GaInNAs, ternary or quaternary compound semiconductor material composition unijunction, binode or tie laminated construction more, realize sunlight wide region, absorb expeditiously.Current unijunction and the photoelectric conversion efficiency of many knot Group III-V semiconductor solar cells under non-concentrating condition reach 28% and 38% respectively, are the most efficient solar cells.Described device layer 5 thickness is only 1-20 μm, and this solar cell is lightweight and have extraordinary flexibility, therefore can ideally be integrated on automobile case as shown in Figure 4, not affect automobile attractive in appearance.
This sun-generated electric power can be charged to the energy-storage battery of automobile, be used for driving automobile engine, also cooling system can be driven to be used for lowering the temperature to each parts of automobile, comprise automobile engine etc., save every kilometer of energy consumption of automobile, can also be used to lower the temperature to the inner space of automobile, keep the temperature pleasant of car body.
Certainly, the solar telephone power supply that the utility model provides, is not limited in and is suitable on car, and it is also applicable to have the bus of larger and smooth light plane and long-distance bus simultaneously, and especially its top can accept sunlight the long period.In addition, the top of building is also suitable lays this solar cell, not only can save other energy, but also can summer architectural top indoor temperature, reduce the cooling burden of air-conditioning, other energy can be saved further.Because this solar cell has good flexibility, even can also cover on the curtain of Chaoyang and use.
In addition, in the present embodiment, also provide the preparation method of above-mentioned solar battery cell, for the manufacture of the solar battery cell of above-mentioned solar telephone power supply, comprise the following steps:
1) at GaAs substrate successively epitaxial growth sacrifice layer, and can sunlight be absorbed and produce the device layer 5 of electric energy, the back sheet be made up of metal level 4 and heat conduction back sheet 3 is formed on device layer 5 surface, selective corrosion corrosion is utilized to fall sacrifice layer, at the surperficial connection metal electrode layer 6 of the device layer 5 peeling off sacrifice layer and substrate;
2) be fixedly connected with by heat-conducting glue the directed heat-conducting layer 2 comprising some heat conductive filaments 1 formation extended along one or more direction on back sheet surface;
3) free end of heat conductive filament 1 is connected with heat abstractor 7, utilizes the anisotropic thermal conductivity of heat conductive filament 1 can improve the oriented heat dissipating of solar cell.
In order to improve the oriented heat dissipating effect of solar cell, in the preparation method of the present embodiment solar cell, using step 2) in wire or carbon fiber are set in directed heat-conducting layer 2 as heat conductive filament 1, because wire and carbon fiber have anisotropic thermal conductivity energy significantly, wire is for copper wire, its axial thermal conductivity is 396 W/m.k, and the axial thermal conductivity of carbon fiber is 700 W/m.k, therefore can by heat directional transmissions to heat abstractor.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range of the invention.
Claims (8)
1. a solar telephone power supply, comprises solar battery group (8) and peripheral circuit, it is characterized in that:
Described solar battery group (8) is laid along the outside of vehicle body, be made up of one or more GaAs based solar battery units in series and/or parallel connection, wherein each solar battery cell comprise can absorb sunlight and produce electric energy device layer (5), device layer (5) top arrange metal electrode layer (6) and device layer (5) below arrange the back sheet be made up of metal level (4) and heat conduction back sheet (3);
Described peripheral circuit is electrically connected with described solar battery group (8), comprises control circuit (10).
2. solar telephone power supply as claimed in claim 1, it is characterized in that: described peripheral circuit also comprises the liquid crystal display screen (12) that can show solar telephone power work state information in real time, described liquid crystal display screen (12) is electrically connected with each block solar battery cell and control circuit (10).
3. solar telephone power supply as claimed in claim 2, it is characterized in that: described control circuit (10) comprises electric current and voltage control chip, by-pass switch and blocking diode, the positive pole of described blocking diode connects a solar cell, negative pole connects storage battery, and described electric current and voltage control chip is connected between described solar cell and blocking diode positive pole by by-pass switch.
4. solar telephone power supply as claimed in claim 3, it is characterized in that: described control circuit (10) also comprises voltage stabilizing didoe, the negative pole of described voltage stabilizing didoe is connected with solar cell, positive pole is connected with the positive pole of described blocking diode.
5. solar telephone power supply as claimed in claim 3, it is characterized in that: also comprise MPPT maximum power point tracking device, described MPPT maximum power point tracking device is connected respectively with described solar cell, described liquid crystal display screen (12) and described electric current and voltage control chip.
6. solar telephone power supply as claimed in claim 1, it is characterized in that: in solar battery cell, directed heat-conducting layer (2) is had in the arranged outside of described back sheet, described directed heat-conducting layer (2) comprises the some heat conductive filaments (1) extended along one or more direction, described heat conductive filament (1) connects outside heat abstractor (7).
7. solar telephone power supply as claimed in claim 6, is characterized in that: described heat conductive filament (1) comprises wire or carbon fiber.
8. solar telephone power supply as claimed in claim 1, is characterized in that: described device layer (5) comprises the unijunction, the binode that are made up of Ⅲ-Ⅴ compound semiconductor material or ties laminated construction more, and described device layer (5) thickness is 1-20 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420428310.9U CN204131447U (en) | 2014-07-31 | 2014-07-31 | Solar telephone power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420428310.9U CN204131447U (en) | 2014-07-31 | 2014-07-31 | Solar telephone power supply |
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| CN204131447U true CN204131447U (en) | 2015-01-28 |
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| CN201420428310.9U Withdrawn - After Issue CN204131447U (en) | 2014-07-31 | 2014-07-31 | Solar telephone power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104309A (en) * | 2014-07-31 | 2014-10-15 | 苏州强明光电有限公司 | Solar car power supply |
| CN105915160A (en) * | 2016-04-22 | 2016-08-31 | 华中科技大学 | Vehicle power supply system based on photovoltaic module group |
-
2014
- 2014-07-31 CN CN201420428310.9U patent/CN204131447U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104309A (en) * | 2014-07-31 | 2014-10-15 | 苏州强明光电有限公司 | Solar car power supply |
| CN104104309B (en) * | 2014-07-31 | 2016-08-24 | 苏州强明光电有限公司 | Solar telephone power supply |
| CN105915160A (en) * | 2016-04-22 | 2016-08-31 | 华中科技大学 | Vehicle power supply system based on photovoltaic module group |
| CN105915160B (en) * | 2016-04-22 | 2018-03-27 | 华中科技大学 | A kind of vehicle powering system based on photovoltaic module group |
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