CN201973902U - Solar thermal collector adopting gas as working medium - Google Patents
Solar thermal collector adopting gas as working medium Download PDFInfo
- Publication number
- CN201973902U CN201973902U CN2010201260592U CN201020126059U CN201973902U CN 201973902 U CN201973902 U CN 201973902U CN 2010201260592 U CN2010201260592 U CN 2010201260592U CN 201020126059 U CN201020126059 U CN 201020126059U CN 201973902 U CN201973902 U CN 201973902U
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- China
- Prior art keywords
- gas
- collector
- solar
- heat
- working media
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- 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
- 239000011521 glass Substances 0.000 claims abstract description 79
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 18
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 2
- 239000003507 refrigerant Substances 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
Images
Classifications
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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
- Y02B10/20—Solar thermal
-
- 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
- Y02E10/44—Heat exchange systems
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
- Photovoltaic Devices (AREA)
Abstract
本实用新型公开了以气体作为工作介质的太阳能集热器。这种设备完全采用气体作为工作介质，据此而实施的一种平板太阳能集热器，其采光面板为玻璃或双层中空玻璃，板芯为带翅片的铝合金板或其它适合的材料，集热板芯向阳面涂有太阳选择性吸收涂层，底板为隔热板，板芯接受太阳光辐射温度升高加热集热器内的空气，热空气通过循环流动将热能转移给需求热能的设备，比如装满水的水箱，通过水箱内的传热换热设施，加热水箱内的水，达到利用太阳能的目的。
The utility model discloses a solar heat collector which uses gas as a working medium. This kind of equipment completely uses gas as the working medium. Based on this, a flat solar collector is implemented. The daylighting panel is glass or double-layer insulating glass, and the core is aluminum alloy plate with fins or other suitable materials. The sun-facing surface of the heat-collecting plate core is coated with a solar selective absorption coating, and the bottom plate is a heat-insulating plate. The plate core receives solar radiation and the temperature rises to heat the air in the heat collector. Equipment, such as a water tank filled with water, heats the water in the water tank through the heat transfer and heat exchange facilities in the water tank to achieve the purpose of utilizing solar energy.
Description
(1) technical field
The utility model relates to a kind of solar thermal energy heat collector in the solar thermal utilization, this heat collector is as working media with the higher gas of air or other heat conductivility, absorb solar thermal energy, air in the heating heat collector, provide hot gas to use, such as the separated type solar water heater that with gas is working media to required equipment.
(2) background technology
In the solar energy heating technical field, product ripe on the market mainly contains vacuum glass solar energy heat collection pipe and flat-plate solar collector etc. at present.
It is all-glass solar vacuum tubular collector that existing solar heating engineering mostly is header with heat collector, header is a cavity bypass structure, one side is inserted all-glass vacuum tube, seal with the silica gel circle between vacuum tube and the header, be full of water in the vacuum tube, system's heat transfer process produces convection current by water in the vacuum tube self temperature difference and finishes; The domestic solar water heater, comparatively popular is the compact solar water heater of glass tube with vacuum straight cutting water tank, seals with the silica gel circle between glass-vacuum tube and the water tank; Both determine be full of water in the glass tube, as long as there is a pipe damaged, will cause whole box water to be revealed, and owing to be full of water in the glass tube, at easy freezing up glass tube in the winter of northern severe cold.
After this heat pipe type vacuum glass heat collection tube has appearred, and anhydrous in the pipe, by adopting heat pipes for heat transfer, efficiently solve above-mentioned problem, but inefficiency, and the production cost height, be unfavorable for promoting.
Ripe now product flat-plate solar collector is generally weld metal pipe on the heat absorption fin, logical liquid working substance in the metal tube, heat energy conducts to metal tube by the heat absorption fin, pass to the interior liquid working substance of pipe by metal tube again, liquid working substance conducts feed-tank or other equipment by temperature difference self-loopa or circulating pump forced circulation with heat.
The common feature of above product is that its working media is a liquid refrigerant, and particularly for the separated type solar water heater, in product installation and operation process, the filling difficulty of liquid refrigerant is big, the cost height; In the working service process in later stage, the leakage of liquid working substance and replenish and all need expend the great number cost, and the thermal-arrest plate is installed in outside balcony or the metope more, in the high temperature heating process, if heat collector breakage or pipeline leakage, high temperature refrigerant leaks and will injure the ground pedestrian, causes great potential safety hazard, and this has also hindered popularizing of separated type solar water heater greatly.
(3) summary of the invention
At existing technological deficiency, the utility model is intended to provide a kind of solar thermal collector that is used for the separated type solar water heater, be a kind of with the collecting apparatus of gas (such as air) as working media.This is the solar thermal collector of working media with gas, working media is a gas, working media without any need for liquid state, this heat collector can be with security and stability in severe cold area work, and cost is low, improved the adaptability and the security of solar energy heat collection equipment greatly, solved solar facilities with liquid medium work fully in the bad problem of severe cold area adaptability.Provided by the invention is the solar thermal collector of working media with gas, be a kind of be the flat-plate solar collector of working media with gas, comprise collector (1), following collector (6), double glazing daylighting panel (2), frame (3), heat-collecting plate core (5), heat insulation bottom board (4), heat insulation bottom board (4) also can be double glazing; Heat-collecting plate core (5) is installed between base plate (4) and the panel (2), and base plate (4) makes up with structure glue or with the aluminum alloy frame bonding by frame (3) with panel (2), forms the flat plate collector of an integral body; Heat-collecting plate core (5) adopts the aluminium alloy extruded two-sided structural design that fin is all arranged, and plate core daylighting face scribbles solar selective absorbing coating, and plane skylight (2) adopts double glazing, and frame and base plate are equipped with thermal insulation layer.Provided by the invention is the solar thermal collector of working media with gas, be a kind of be the glass solar energy collecting vacuum tube of working media with gas, comprise outer glass pipe (8), inner glass tube (9), with the glass fin (11) of inner glass tube (9) one, be plated in the solar energy selective absorbing membranous layer (12) in inner glass tube (9) outside, vacuum layer (10), stainless steel jump ring and getter (13), air inlet pipe (7); Glass fin (11) is for to be shaped simultaneously when manufacturing inner glass tube (9), and the inner glass tube outer surface scribbles solar selective absorbing coating, the metal light wall pipe that air inlet pipe (7) can be glass tube or is not easy to be corroded.Provided by the invention is the solar thermal collector of working media with gas, be a kind of be the both ends open glass solar energy collecting vacuum tube of working media with gas, comprise outer glass pipe (8), undulatory inner glass tube (9), ventilation metal tube (15), be plated in the solar energy selective absorbing membranous layer (12) in breather pipe (15) outside, the inner metal fin (16) that connects together with breather pipe of breather pipe, vacuum layer (10).More than the solar thermal collector of three kinds of forms, what be that the present invention proposes is the various combination form of the solar thermal collector of working media with gas, all is to be that working media moves with gas, but not moves as working media with liquid medium.
(4) description of drawings
The flat-plate solar collector three-dimensional structure diagram of Fig. 1 for implementing according to the utility model.
Fig. 2～Fig. 3 is the flow through path schematic diagram of flat-plate solar collector of gas.
The glass solar energy collecting vacuum tube structural representation of Fig. 4～Fig. 5 for implementing according to the utility model, Fig. 5 is the A-A profile.
The both ends open glass solar energy collecting vacuum tube structural representation of Fig. 6～Fig. 7 for implementing according to the utility model, Fig. 7 is the B-B profile.
(5) specific embodiment
For realizing the purpose of this utility model; following several embodiments of giving chapter and verse the utility model and implementing; but protection domain of the present utility model is not limited thereto, and everyly all will fall into protection domain of the present utility model with gas as the product similar to following embodiment and the technology of working media operation.
First embodiment: a kind of is the flat-plate solar collector of working media with gas
Flat-plate solar collector according to the utility model is implemented with reference to Figure of description 1, comprises collector 1, following collector 6, double glazing daylighting panel 2, frame 3, heat-collecting plate core 5, heat insulation bottom board 4.Heat insulation bottom board 4 also can be double glazing.Heat-collecting plate core 5 is installed between base plate 4 and the panel 2, and base plate 4 makes up by frame 3 usefulness structure glue or with the aluminum alloy frame bonding with panel 2, forms the flat plate collector of an integral body.Heat-collecting plate core 5 adopts the aluminium alloy extruded two-sided structural design that fin is all arranged, be intended to increase the area that contacts with gas, improve heat exchange efficiency, heat-collecting plate core 5 can be made other structure that helps heat exchange, such as interlaced fin structure, and uses other to help the material of heat exchange, such as the material that uses copper as the plate core, the thermal-arrest plate can be bent into the shape identical with installation base surface, and plate core daylighting face scribbles solar selective absorbing coating, reaches the effect of high-absorbility antiradar reflectivity.Plane skylight 2 adopts double glazing to be intended to reduce thermal-arrest plate and extraneous thermal convection current, reduces the heat waste of heat collector, and frame and base plate are equipped with thermal insulation layer, to reach the effect that reduces the heat collector heat waste.
Its operation principle of plate solar collector of implementing according to the utility model is that heat-collecting plate core 5 is subjected to solar radiation, the absorption solar thermal energy heats up, by cloth in the fin of its daylighting face and shady face and the moving air generation heat exchange in the heat collector, add hot-air, hot-air flows into goes up the heat exchanger of collector 1 back by pipeline flow-direction equipment to be heated, air after the cooling flows back to down collector 6 from reflux line, replenish to heat collector, heat collector continues to add the cold air of hot reflux, thereby finishes a heat absorption heat exchange circulation.
Arrow among accompanying drawing 2～Fig. 3 is represented the path of air-flow.
According to the described plate solar collector that the utility model is implemented, it is a kind of without the flat plate collector of liquid refrigerant as heat transferring medium that its purpose is to provide.Owing to do not use liquid refrigerant, can significantly subdue and install and operating cost, use the system of liquid refrigerant to compare, more the maintenance cost of system can be reduced to zero, and the security of elevator system greatly, expanded the range of application of flat plate collector greatly.
According to the flat plate collector that the utility model is implemented, its shape can be bent into the shape of fitting with basal plane according to the shape of settling basal plane, thereby widens the scope of application, can not destroy the attractive in appearance of original building.
Second embodiment: a kind of is the vacuum glass solar energy heat collection pipe of working media with gas
The glass solar energy collecting vacuum tube of implementing according to the utility model, with reference to Figure of description 4～Fig. 5, its structure comprises outer glass pipe 8, inner glass tube 9, with the glass fin 11 of inner glass tube 9 one, be plated in the solar energy selective absorbing membranous layer 12 in inner glass tube 9 outsides, vacuum layer 10, stainless steel jump ring and getter 13, air inlet pipe 7.Glass fin 11 is intended to increase the area that contacts with gas for to be shaped simultaneously when manufacturing inner glass tube 9, improve heat exchange efficiency, and the inner glass tube outer surface scribbles solar selective absorbing coating, reaches the effect of high-absorbility antiradar reflectivity.The metal light wall pipe that air inlet pipe 7 can be glass tube or is not easy to be corroded.
The glass solar energy collecting vacuum tube of implementing according to the utility model, its operation principle is that the solar energy selective absorbing membranous layer 12 absorption solar thermal energies in the inner glass tube outside raise inner glass tube 9 and glass fin 11 temperature, thereby the gas between heating air inlet pipe 7 and the inner glass tube 9, gas is replenished by air inlet pipe 7 in the glass tube, discharged by direction shown in the arrow 14, gas flow also can be pressed the complete rightabout circulation of arrow.Be the vacuum layer of complete closed between inner glass tube and the outer glass tube, can reduce to the thermal convection current between the interior outer glass tube minimum.
According to the glass solar energy collecting vacuum tube that the utility model is implemented, it is a kind of without the thermal-collecting tube of liquid refrigerant as heat transferring medium that its purpose is to provide.Owing to do not use liquid refrigerant, can significantly subdue and install and operating cost, use the system of liquid refrigerant to compare, more the maintenance cost of system can be reduced to zero, and the security of elevator system greatly.
The 3rd embodiment: a kind of is the both ends open glass solar energy collecting vacuum tube of working media with gas
The both ends open glass solar energy collecting vacuum tube of implementing according to the utility model, with reference to Figure of description 6～Fig. 7, its structure comprises outer glass pipe 8, undulatory inner glass tube 9,, ventilation metal tube 15, be plated in the solar energy selective absorbing membranous layer 12 in breather pipe 15 outsides, the inner metal fin 16 that connects together with breather pipe of breather pipe, vacuum layer 10, inner glass tube 9 is clear glass with outer glass tube 8.
The both ends open glass solar energy collecting vacuum tube of implementing according to the utility model, its operation principle is that the solar energy selective absorbing membranous layer 12 absorption solar thermal energies in the breather pipe outside raise breather pipe 15 and fin 16 temperature, thereby the gas in the heating breather pipe 15, gas is circulated to the other end by an end of thermal-collecting tube in the pipe, discharges thermal current.Be the vacuum layer 10 of complete closed between inner glass tube and the outer glass tube, can reduce to the thermal convection current between the interior outer glass tube minimum.Inner glass tube need be made into ripple type, prevents that inner glass tube from damaging vacuum tube in the breathing process.
According to the both ends open glass solar energy collecting vacuum tube that the utility model is implemented, it is a kind of without the thermal-collecting tube of liquid refrigerant as heat transferring medium that its purpose is to provide.Owing to do not use liquid refrigerant, can significantly subdue and install and operating cost, use the system of liquid refrigerant to compare, more the maintenance cost of system can be reduced to zero, and the security of elevator system greatly.
Claims (6)
1. one kind is the solar thermal collector of working media with gas, with the stronger gas of air or thermal conductivity as working media, it is characterized in that this heat collector is to move as working media with gas medium, rather than move as working media with liquid medium, this solar thermal collector in the course of the work, heat collector inside has only gas without any liquid substance.
2. according to claim 1 is the solar thermal collector of working media with gas, be a kind of be the flat-plate solar collector of working media with gas, its feature comprises collector (1), following collector (6), double glazing daylighting panel (2), frame (3), heat-collecting plate core (5), heat insulation bottom board (4), heat insulation bottom board (4) also can be double glazing; Heat-collecting plate core (5) is installed between base plate (4) and the panel (2), and base plate (4) makes up with structure glue or with the aluminum alloy frame bonding by frame (3) with panel (2), forms the flat plate collector of an integral body; Heat-collecting plate core (5) adopts the aluminium alloy extruded two-sided structural design that fin is all arranged, and plate core daylighting face scribbles solar selective absorbing coating, and plane skylight (2) adopts double glazing, and frame and base plate are equipped with thermal insulation layer.
3. according to claim 2 is the solar thermal collector of working media with gas, be a kind of be the flat-plate solar collector of working media with gas, it is characterized by the thermal-arrest plate and can be bent into the shape identical with installation base surface.
4. according to claim 1 is the solar thermal collector of working media with gas, be a kind of be the glass solar energy collecting vacuum tube of working media with gas, its feature comprises outer glass pipe (8), inner glass tube (9), with the glass fin (11) of inner glass tube (9) one, be plated in the solar energy selective absorbing membranous layer (12) in inner glass tube (9) outside, vacuum layer (10), stainless steel jump ring and getter (13), air inlet pipe (7); Glass fin (11) is for to be shaped simultaneously when manufacturing inner glass tube (9), and the inner glass tube outer surface scribbles solar selective absorbing coating, the metal light wall pipe that air inlet pipe (7) can be glass tube or is not easy to be corroded.
5. according to claim 1 is the solar thermal collector of working media with gas, be a kind of be the both ends open glass solar energy collecting vacuum tube of working media with gas, its feature comprises outer glass pipe (8), undulatory inner glass tube (9), ventilation metal tube (15), be plated in the solar energy selective absorbing membranous layer (12) in breather pipe (15) outside, the inner metal fin (16) that connects together with breather pipe of breather pipe, vacuum layer (10).
6. according to claim 5 is the solar thermal collector of working media with gas, be a kind of be the both ends open glass solar energy collecting vacuum tube of working media with gas, it is characterized in that the glass tube both ends open, inner glass tube (9) is clear glass with outer glass tube (8), and inner glass tube (9) is a corrugated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201260592U CN201973902U (en) | 2009-07-14 | 2010-03-09 | Solar thermal collector adopting gas as working medium |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910054727.7 | 2009-07-14 | ||
| CN200910054727 | 2009-07-14 | ||
| CN2010201260592U CN201973902U (en) | 2009-07-14 | 2010-03-09 | Solar thermal collector adopting gas as working medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201973902U true CN201973902U (en) | 2011-09-14 |
Family
ID=43484561
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201260592U Expired - Fee Related CN201973902U (en) | 2009-07-14 | 2010-03-09 | Solar thermal collector adopting gas as working medium |
| CN2010201267093U Expired - Fee Related CN201973897U (en) | 2009-07-14 | 2010-03-09 | Split solar water heater taking gas as working medium |
| CN2010202670503U Expired - Fee Related CN201973898U (en) | 2009-07-14 | 2010-07-12 | Whole-roof solar water heater utilizing air as working medium |
| CN2010102340423A Pending CN101957079A (en) | 2009-07-14 | 2010-07-12 | Full roof solar water heater using air as working medium |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201267093U Expired - Fee Related CN201973897U (en) | 2009-07-14 | 2010-03-09 | Split solar water heater taking gas as working medium |
| CN2010202670503U Expired - Fee Related CN201973898U (en) | 2009-07-14 | 2010-07-12 | Whole-roof solar water heater utilizing air as working medium |
| CN2010102340423A Pending CN101957079A (en) | 2009-07-14 | 2010-07-12 | Full roof solar water heater using air as working medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN201973902U (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967059B (en) * | 2012-12-02 | 2014-05-07 | 徐何燎 | Heat exchanging method |
| CN103539199B (en) * | 2013-10-08 | 2014-11-05 | 界首市骏马工贸有限公司 | Environment-friendly rotary drum type red lead oxidizing furnace capable of assist electric heating by utilizing solar heating |
| CN109579330A (en) * | 2019-01-22 | 2019-04-05 | 乌海昊华高科节能技术有限公司 | A kind of new type solar energy air heat-collecting header |
| CN110195885B (en) * | 2019-05-09 | 2020-12-25 | 太原理工大学 | Solar photovoltaic photo-thermal utilization and heating system |
| CN112539567B (en) * | 2020-12-07 | 2021-07-23 | 镇江赫利俄斯能源科技有限公司 | A solar collector |
| CN118482485B (en) * | 2024-04-28 | 2025-09-19 | 北京兴马阳光新能源科技有限公司 | Intelligent linkage system of solar panel and heat pump |
-
2010
- 2010-03-09 CN CN2010201260592U patent/CN201973902U/en not_active Expired - Fee Related
- 2010-03-09 CN CN2010201267093U patent/CN201973897U/en not_active Expired - Fee Related
- 2010-07-12 CN CN2010202670503U patent/CN201973898U/en not_active Expired - Fee Related
- 2010-07-12 CN CN2010102340423A patent/CN101957079A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN201973898U (en) | 2011-09-14 |
| CN101957079A (en) | 2011-01-26 |
| CN201973897U (en) | 2011-09-14 |
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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: 20110914 Termination date: 20150309 |
|
| EXPY | Termination of patent right or utility model |