CN204906315U - High power spotlight photovoltaic power generation heating system - Google Patents
High power spotlight photovoltaic power generation heating system Download PDFInfo
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- CN204906315U CN204906315U CN201520688615.8U CN201520688615U CN204906315U CN 204906315 U CN204906315 U CN 204906315U CN 201520688615 U CN201520688615 U CN 201520688615U CN 204906315 U CN204906315 U CN 204906315U
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- photovoltaic
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- heating system
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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
- Y02E10/40—Solar thermal energy, e.g. solar towers
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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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- 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
- Y02E10/60—Thermal-PV hybrids
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Abstract
The utility model relates to a high power spotlight photovoltaic power generation heating system. Including water tank, water pump and high power spotlight photovoltaic light and heat mechanism, high power spotlight photovoltaic light and heat mechanism comprises at least a set of photovoltaic light and heat subassembly, every group photovoltaic light and heat subassembly includes that at least two are established ties or parallelly connected photovoltaic light and heat mechanism, every photovoltaic light and heat mechanism comprises fresnel lens and photovoltaic receiver device, photovoltaic receiver device comprises secondary optical prism, solar PV cells and the water -cooling heat transfer piece that connects gradually, fresnel lens, secondary optical prism and solar PV cells constitute electricity generation mechanism, water -cooling heat transfer piece is through establishing ties or the parallelly connected circulating pipe way that constitutes high power spotlight photovoltaic light and heat mechanism, water tank, water pump and establish ties and form circulating water heat supply return circuit in the circulating pipe way. The utility model discloses when adopting three knot batteries of gaAs as the photovoltaic cell of system, the system can realize photoelectric conversion efficiency and 55% light and heat conversion efficiency more than 20% simultaneously, and the solar energy utilization efficiency of system is the highest above 75%.
Description
Technical field
The utility model belongs to photovoltaic and photothermal solar technical field of comprehensive utilization, is specifically related to a kind of high power condense photovoltaic electrification heating system.
Background technology
Due to universal existence and the spatter property feature that can infinitely utilize of solar energy, the application of solar energy has become one of important channel of supplementary conventional energy resource.The major way of Solar use comprises solar energy heat utilization, solar photoelectric utilization, solar energy chemical utilization and solar energy biological utilisation.In solar energy photovoltaic utilization, after photovoltaic cell absorbs solar irradiation, battery temperature can increase, thus photoelectric conversion efficiency can be caused to decline.Improving one of effective way of solar energy power generating efficiency is reduce the working temperature of photovoltaic cell, namely ensures the unlikely work of photovoltaic cell at relatively high temperatures by the various type of cooling.The conventional type of cooling is taken away by heat by air or water, these extra heat collection is used simultaneously, also improves the photovoltaic/thermal comprehensive utilization ratio of unit are like this while improving photovoltaic efficiency.At home, the difunctional heat collector that photovoltaic hot-water heat collector, photovoltaic air collector and air and hot water combine all has more application, as photovoltaic drives solar energy air heat collector (CN102322695A), whole plate tube-sheet type photovoltaic hot-water module (CN101740650A), multifunctional flat heat collector (CN201155869) etc.
The another kind of important way improving solar energy power generating efficiency is the intensity of illumination that raising photovoltaic cell receives, and namely adopts spot mode.Salar light-gathering mode has a lot, current comparative maturity have slot light collection, composite parabolic optically focused, dish-style optically focused and Fresnel optically focused etc.Trench light condensing system and composite parabolic condenser system generally can only obtain the light concentrating times lower than 100 times, and mostly adopt crystal silicon class photovoltaic cell, and generating efficiency is low, and economic benefit is not obvious.Although disc type condensation system can obtain higher light concentrating times, install complicated, the structural stress that minute surface bears is comparatively large, and easily damage, cost is very high, and optically focused focal plane is exposed to danger when outside too increases installation.And sunlight converges on the very little battery of area by Fresnel Lenses optical element by Fresnel condenser system, reduce the cell area at focal spot place in this way, increase the light intensity on battery with identical ratio simultaneously, not only can realize the spotlight effect more than 1000 times, and cost is lower, there is good stability simultaneously.In Fresnel high power concentrator system, the working temperature of photovoltaic cell is often beyond ambient temperature about 60 DEG C, in order to realize cooling effect, conventional copper or aluminium make the straight ribbed heat exchange in the outside cooling device made, and directly contact, take away heat by the convection action of air with photovoltaic module.Although this mode can play certain heat exchange cooling effect, but it is larger by such environmental effects, the temperature effectively reducing battery is difficult under the weather condition of sweltering heat, and be difficult to reach instantaneously cooled heat transfer effect, thus make the photoelectric conversion efficiency of system more on the low side than the efficiency of photovoltaic cell, also cannot make full use of solar energy resources simultaneously.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of high power condense photovoltaic electrification heating system, while can ensureing high power light concentrating photovoltaic system efficiency power generation, collects extra heat energy.
A kind of high power condense photovoltaic electrification heating system comprises water tank 1, water pump 2 and high power concentrating photovoltaic photo-thermal mechanism; Described high power concentrating photovoltaic photo-thermal mechanism is made up of at least one group of photovoltaic and photothermal assembly 3; Often organize the photovoltaic and photothermal mechanism that photovoltaic and photothermal assembly 3 comprises at least two serial or parallel connections; Each photovoltaic and photothermal mechanism is made up of Fresnel Lenses 31 and photovoltaic receiver mechanism 34; Described photovoltaic receiver mechanism 34 is made up of the water-cooled heat exchanging piece 343 of the secondary optics prism 341 connected successively, solar-energy photo-voltaic cell 342 and tubulose; Fresnel Lenses 31, secondary optics prism 341 and solar-energy photo-voltaic cell 342 form power facility;
The water-cooled heat exchanging piece 343 of described tubulose is by being in series or in parallel to form the circulating water line of high power concentrating photovoltaic photo-thermal mechanism; Water tank 1 is provided with delivery port and water return outlet, the delivery port of water tank 1 water inlet of water pump 2 by pipeline communication, the delivery port of water pump 2 water inlet of the circulating water line of high power concentrating photovoltaic photo-thermal mechanism by pipeline communication, the delivery port of the circulating water line of high power concentrating photovoltaic photo-thermal assembly 3 water return outlet of water tank 1 by pipeline communication, form circulating water heating loop.
One end of the water-cooled heat exchanging piece 343 of tubulose is water inlet 344, and the other end is delivery port 345; The outside of the water-cooled heat exchanging piece 343 of tubulose is provided with the platform of a tabular vertically, and solar-energy photo-voltaic cell 342 is fixed in the middle part of platform by heat conductive silica gel; Described secondary optics prism 341 is tetragonous cone table, and portlet is connected to solar-energy photo-voltaic cell 342, and large port correspond to Fresnel Lenses 31.
At least one group of photovoltaic and photothermal assembly 3 is positioned at a framework 32, and the top of described framework 32 and bottom are through shape, the inherent through direction of framework 32 uniform the little lattice of unit; Each photovoltaic and photothermal mechanism is positioned at the little lattice of unit, and Fresnel Lenses 31 is positioned at the top of framework 32, and water-cooled heat exchanging piece 343 is positioned at the bottom of framework 32.
The pipeline of the water inlet side of described water pump 2 is provided with water intaking valve 41, and the pipeline of delivery port side is provided with filter 5.
Described filter 5 is y-type filter.
The pipeline of the water inlet side of the circulating water line of described high power concentrating photovoltaic photo-thermal assembly 3 is provided with the first Pressure gauge 61, and the pipeline of delivery port side is provided with the second Pressure gauge 62.
Be provided with the first pressure gauge control valve 43 between first Pressure gauge 61 of the water inlet side of the circulating water line of described high power concentrating photovoltaic photo-thermal assembly 3 and pipeline, between the second Pressure gauge 62 of the delivery port side of circulating water line and pipeline, be provided with the second pressure gauge control valve 44.
Described water tank 1 is provided with vent valve 7, and the pipeline of the water return outlet side of water tank 1 is provided with back-water valve (BWV) 42.
Described water intaking valve 41, back-water valve (BWV) 42, first pressure gauge control valve 43 and the second pressure gauge control valve 44 are ball valve.
Advantageous Effects of the present utility model embodies in the following areas:
(1) the utility model can realize the comprehensive utilization of solar energy, collects extra heat energy for heat cycles water, increased substantially the utilization ratio of solar energy while raising generating efficiency.When the photovoltaic cell adopting GaAs three junction battery as system, system can realize the photoelectric conversion efficiency of more than 20% and the photo-thermal conversion efficiency of 55% simultaneously, and the Solar use of system is most effective more than 75%.
(2) the utility model adopts Fresnel point light collecting concentrator, can reach more than the focusing ratio of 1000 times, thus corresponding proportion reduce the area of photovoltaic cell, reduce cost.When monolithic Fresnel lenses is of a size of 330.2 × 330.2mm2, the area of monoblock battery is only 10 × 10mm2.
(3) the utility model can realize the separate connection of circuit and circulation waterway between high power concentrating photovoltaic photo-thermal mechanism, convenient installation and component design.Usually all batteries of one group of photovoltaic and photothermal assembly are connected, and circulation waterway connects as required in photovoltaic and photothermal assembly bottom.
(4) the utility model utilizes the non-optical imaging spot mode that Fresnel Lenses and secondary optics prism coordinate, and ensure that the uniformity arriving battery surface irradiation intensity, makes the intensity of illumination of monoblock battery surface basically identical.
(5) the utility model adopts the photovoltaic and photothermal mechanism with tubulose water-cooled heat exchanging piece, greatly strengthen the heat exchange cooling effect to photovoltaic cell, solve a high heat flux heat radiation difficult problem for Fresnel condensation photovoltaic, make the generating efficiency of system exceed the Fresnel high power condense photovoltaic electrification system more than 2% of same specification passive type cooling.
(6) design of the circulating water line of the utility model parallel connection, ensure that the uniform flow between the branch road often organizing photovoltaic and photothermal assembly 3, avoids the local cell temperature that may cause because of mass flow discrepancy higher.
(7) the utility model recirculated water total flow and each bypass flow adjustable, corresponding coupling can be carried out as required.
(8) the utility model compact conformation, easy for installation, and increased substantially the stability of condenser system and windproof, its wind resistance grade can reach 145km/h, can bear diameter 25mm hail with the impact of 22m/s speed.
(9) high power condense photovoltaic electrification heating system of the present utility model adopts Fresnel Lenses to carry out optically focused, and optically focused focus, in module internal, avoids danger when system is installed.
Accompanying drawing explanation
Fig. 1 is the utility model system principle schematic diagram.
Fig. 2 is high power concentrating photovoltaic photo-thermal assembly schematic diagram.
Fig. 3 is the photovoltaic and photothermal component internal view removing Fresnel Lenses.
Fig. 4 is photovoltaic receiver structural scheme of mechanism.
Fig. 5 is photovoltaic receiver mechanism principle figure.
Sequence number in upper figure: water tank 1, water pump 2, photovoltaic and photothermal assembly 3, filter 5, vent valve 7, Fresnel Lenses 31, framework 32, wire 33, photovoltaic receiver mechanism 34, water intaking valve 41, back-water valve (BWV) 42, first pressure gauge control valve 43, second pressure gauge control valve 44, first Pressure gauge 61, second Pressure gauge 62, secondary optics prism 341, solar-energy photo-voltaic cell 342, water cooling heat exchanger 343, water inlet 344, delivery port 345.
Embodiment
In order to explain the technical solution of the utility model further, below in conjunction with accompanying drawing, by embodiment, the utility model is further described.
See Fig. 1, a kind of high power condense photovoltaic electrification heating system comprises water tank 1, water pump 2 and high power concentrating photovoltaic photo-thermal mechanism.See Fig. 1 and Fig. 2, high power concentrating photovoltaic photo-thermal mechanism is made up of the photovoltaic and photothermal assembly 3 of three groups of parallel connections; Often organize the photovoltaic and photothermal mechanism that photovoltaic and photothermal assembly 3 comprises five series connection; Each photovoltaic and photothermal mechanism is made up of Fresnel Lenses 31 and photovoltaic receiver mechanism 34.See Fig. 4 and Fig. 5, photovoltaic receiver mechanism 34 is made up of the water-cooled heat exchanging piece 343 of the secondary optics prism 341 connected successively, solar-energy photo-voltaic cell 342 and tubulose, secondary optics prism 341 is tetragonous cone table, and portlet is connected to solar-energy photo-voltaic cell 342, large port correspond to Fresnel Lenses 31; Fresnel Lenses 31, secondary optics prism 341 and solar-energy photo-voltaic cell 342 form power facility.
See Fig. 4 and Fig. 5, one end of the water-cooled heat exchanging piece 343 of tubulose is water inlet 344, and the other end is delivery port 345; The outside of water-cooled heat exchanging piece 343 is provided with the platform of a tabular vertically, and solar-energy photo-voltaic cell 342 is fixed in the middle part of platform by heat conductive silica gel.See Fig. 3, often organize the circulating water line of the water-cooled heat exchanging piece 343 in photovoltaic and photothermal assembly 3 by high power concentrating photovoltaic photo-thermal mechanism in series.
See Fig. 2, three groups of photovoltaic and photothermal assemblies 3 are positioned at a framework 32, and the material of framework 32 is aluminium, and the top of framework 32 and bottom are through shape, the inherent through direction of framework 32 uniform the little lattice of unit; Each photovoltaic and photothermal mechanism is positioned at the little lattice of unit, and Fresnel Lenses 31 is positioned at the top of framework 32, and water-cooled heat exchanging piece 343 is positioned at the bottom of framework 32.
See Fig. 1, water tank 1 is provided with delivery port and water return outlet, the delivery port of water tank 1 water inlet of water pump 2 by pipeline communication, the delivery port of water pump 2 water inlet of the circulating water line of high power concentrating photovoltaic photo-thermal mechanism by pipeline communication, the delivery port of the circulating water line of high power concentrating photovoltaic photo-thermal assembly 3 water return outlet of water tank 1 by pipeline communication, form circulating water heating loop.Water tank 1 is provided with vent valve 7, and the pipeline of the water return outlet side of water tank 1 is provided with back-water valve (BWV) 42.
The pipeline of the water inlet side of water pump 2 is provided with water intaking valve 41, and the pipeline of delivery port side is provided with filter 5, and filter 5 is y-type filter.The pipeline of the water inlet side of the circulating water line of high power concentrating photovoltaic photo-thermal assembly 3 is provided with the first Pressure gauge 61, the pipeline of delivery port side is provided with the second Pressure gauge 62.Be provided with the first pressure gauge control valve 43 between first Pressure gauge 61 of the water inlet side of the circulating water line of high power concentrating photovoltaic photo-thermal assembly 3 and pipeline, between the second Pressure gauge 62 of the delivery port side of circulating water line and pipeline, be provided with the second pressure gauge control valve 44.
Water intaking valve 41, back-water valve (BWV) 42, first pressure gauge control valve 43 and the second pressure gauge control valve 44 are ball valve.
Operation principle of the present utility model is described as follows:
During work, sunlight, after Fresnel Lenses 31 reflects, enters photovoltaic receiver mechanism 34, then after reflecting via secondary optics prism 341, is incident upon equably on solar-energy photo-voltaic cell 342, thus realizes opto-electronic conversion.Extra solar energy is then taken away by water-cooled heat exchanging piece 343.Cooling water is stored in water tank 1, water at low temperature pumps by water pump 2 from the delivery port of water tank 1 bottom, after the water-cooled heat exchanging piece 343 in circulating water line with it heat exchange, solar-energy photo-voltaic cell 342 is cooled, water temperature raises simultaneously, the water inlet of high-temperature water through water tank 1 top is got back in water tank 1, realizes the collection of additional thermal energy.
In the utility model, vent valve 7 is for separating of the air in recirculated water, y-type filter 5 is for removing the impurity in recirculated water, water intaking valve 41, back-water valve (BWV) 42, first pressure gauge control valve 43 and the second pressure gauge control valve 44 realize carrying out regulable control to each bypass flow, first Pressure gauge 61 and the second Pressure gauge 62 are used for the pressure differential of supervisory control system water inlet and delivery port, can overhaul in time when occurring abnormal.
Claims (9)
1. a high power condense photovoltaic electrification heating system, is characterized in that: comprise water tank (1), water pump (2) and high power concentrating photovoltaic photo-thermal mechanism; Described high power concentrating photovoltaic photo-thermal mechanism is made up of at least one group of photovoltaic and photothermal assembly (3); Often organize the photovoltaic and photothermal mechanism that photovoltaic and photothermal assembly (3) comprises at least two serial or parallel connections; Each photovoltaic and photothermal mechanism is made up of Fresnel Lenses (31) and photovoltaic receiver mechanism (34); Described photovoltaic receiver mechanism (34) is made up of the water-cooled heat exchanging piece (343) of the secondary optics prism (341) connected successively, solar-energy photo-voltaic cell (342) and tubulose; Fresnel Lenses (31), secondary optics prism (341) and solar-energy photo-voltaic cell (342) form power facility;
The water-cooled heat exchanging piece (343) of described tubulose is by being in series or in parallel to form the circulating water line of high power concentrating photovoltaic photo-thermal mechanism; Water tank (1) is provided with delivery port and water return outlet, the delivery port of water tank (1) the water inlet of water pump (2) by pipeline communication, the delivery port of water pump (2) the water inlet of the circulating water line of high power concentrating photovoltaic photo-thermal mechanism by pipeline communication, the delivery port of the circulating water line of high power concentrating photovoltaic photo-thermal assembly (3) the water return outlet of water tank (1) by pipeline communication, form circulating water heating loop.
2. a kind of high power condense photovoltaic electrification heating system according to claim 1, is characterized in that: one end of the water-cooled heat exchanging piece (343) of tubulose is water inlet (344), and the other end is delivery port (345); The outside of the water-cooled heat exchanging piece (343) of tubulose is provided with the platform of a tabular vertically, and solar-energy photo-voltaic cell (342) is fixed in the middle part of platform by heat conductive silica gel; Described secondary optics prism (341) is tetragonous cone table, and portlet is connected to solar-energy photo-voltaic cell (342), and large port correspond to Fresnel Lenses (31).
3. a kind of high power condense photovoltaic electrification heating system according to claim 1, it is characterized in that: at least one group of photovoltaic and photothermal assembly (3) is positioned at a framework (32), the top of described framework (32) and bottom are through shape, the inherent through direction of framework (32) uniform the little lattice of unit; Each photovoltaic and photothermal mechanism is positioned at the little lattice of unit, and Fresnel Lenses (31) is positioned at the top of framework (32), and water-cooled heat exchanging piece (343) is positioned at the bottom of framework (32).
4. a kind of high power condense photovoltaic electrification heating system according to claim 1, is characterized in that: the pipeline of the water inlet side of described water pump (2) is provided with water intaking valve (41), and the pipeline of delivery port side is provided with filter (5).
5. a kind of high power condense photovoltaic electrification heating system according to claim 4, is characterized in that: described filter (5) is y-type filter.
6. a kind of high power condense photovoltaic electrification heating system according to claim 1, it is characterized in that: the pipeline of the water inlet side of the circulating water line of described high power concentrating photovoltaic photo-thermal assembly (3) is provided with the first Pressure gauge (61), the pipeline of delivery port side is provided with the second Pressure gauge (62).
7. a kind of high power condense photovoltaic electrification heating system according to claim 6, it is characterized in that: between first Pressure gauge (61) of the water inlet side of the circulating water line of described high power concentrating photovoltaic photo-thermal assembly (3) and pipeline, be provided with the first pressure gauge control valve (43), between second Pressure gauge (62) of the delivery port side of circulating water line and pipeline, be provided with the second pressure gauge control valve (44).
8. a kind of high power condense photovoltaic electrification heating system according to claim 1, is characterized in that: described water tank (1) is provided with vent valve (7), the pipeline of the water return outlet side of water tank (1) is provided with back-water valve (BWV) (42).
9. a kind of high power condense photovoltaic electrification heating system according to claim 4 or 7 or 8, is characterized in that: described water intaking valve (41), back-water valve (BWV) (42), the first pressure gauge control valve (43) and the second pressure gauge control valve (44) are ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520688615.8U CN204906315U (en) | 2015-09-08 | 2015-09-08 | High power spotlight photovoltaic power generation heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520688615.8U CN204906315U (en) | 2015-09-08 | 2015-09-08 | High power spotlight photovoltaic power generation heating system |
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| Publication Number | Publication Date |
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| CN204906315U true CN204906315U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520688615.8U Expired - Fee Related CN204906315U (en) | 2015-09-08 | 2015-09-08 | High power spotlight photovoltaic power generation heating system |
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2015
- 2015-09-08 CN CN201520688615.8U patent/CN204906315U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20151223 Termination date: 20210908 |