CN103846244A - Autonomous solar panel multifunctional integral cleaning system - Google Patents
Autonomous solar panel multifunctional integral cleaning system Download PDFInfo
- Publication number
- CN103846244A CN103846244A CN201410088546.7A CN201410088546A CN103846244A CN 103846244 A CN103846244 A CN 103846244A CN 201410088546 A CN201410088546 A CN 201410088546A CN 103846244 A CN103846244 A CN 103846244A
- Authority
- CN
- China
- Prior art keywords
- solar panel
- microsystem
- voltage
- spray
- cleaning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
- B08B7/0071—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by heating
-
- 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
Abstract
The invention provides an autonomous solar panel multifunctional integral cleaning system, which comprises a snow thawing heating system, a cleaning spraying system, a power supply variator and a microcomputer system, wherein the snow thawing heating system is used for thawing ice and snow on the surface of a solar panel, the cleaning spraying system is used for clearing dust on the surface of a solar battery, the power supply variator is used for providing different work voltage for the snow thawing heating system, the cleaning spraying system and the microcomputer system, and the microcomputer system is used for implementing the closed loop control on three links of the cleaning spraying system, the snow thawing heating system and the power supply variator. The autonomous solar panel multifunctional integral cleaning system has the advantages that the photoelectric conversion efficiency of solar panels is improved, and the service life is prolonged.
Description
Technical field
The present invention relates to field of photovoltaic power generation, particularly a kind of autonomous type solar panel multifunctional cleaning system.
Background technology
Along with country is to the policy support in the new forms of energy career developments such as photovoltaic; solar energy generation technology and corresponding micro-electric power network technique etc. had all obtained development at full speed and universal in recent years; also make the research of the safeguard procedures such as energy conversion efficiency and substrate dedusting protection of people to solar panel cause gradually attention widely, also should have mutually some patents and product to present successively.
Development photovoltaic new forms of energy cause is concerning resisting fossil energy crisis, reduce atmosphere pollution, be conducive to an important state basic policy of energy-saving and emission-reduction career development.And photovoltaic battery panel is arranged on outdoor naked outdoor formula new forms of energy sensitization electricity generation system, be subject to weather, travel fatigue and increasing haze climatic influences are very big, special in being exposed to for a long time in outdoor environment, solar panel surface is often piled up many dusts and is also had the coverings such as ice and snow winter, in addition, what have waits consideration for being conducive to receive illumination with safety, solar panel is rise sheer from the position on certain altitude (such as roof) again more, be not easy to artificial directly cleaning, these reasons are all directly connected to the problems such as solar panel photoelectric transformation efficiency and service life.
Summary of the invention
The object of the invention is to solve the defect that above-mentioned prior art exists, provide that solar panel is carried out to autonomous type heating ice-melt snow, spraying and dedusting, power conversion, information detection etc. is multi-functional in integral solar energy cell panel cleaning systems.
A kind of autonomous type solar panel multifunctional cleaning system, comprises for by the snow melting heating system of the ice dissolution of solar cell surface; For removing the cleaning spray system of solar cell surface dust; Be used to snow melting heating system, cleaning spray system, microsystem that the power source change device of different operating voltage is provided; And for cleaning spray system, snow melting heating system and power source change device three links being implemented to the microsystem of closed-loop control.
Further, autonomous type solar panel multifunctional cleaning system as above, described power source change device comprises controlled power device, voltage sensor, voltage detecting circuit, the drive circuit of exportable three voltages; The DC voltage that is input as solar panel bus-bar place of described controlled power device, it is output as three-dimensional voltage and is respectively used to provide different operating voltages for cleaning spray system, snow melting heating system, microsystem; Described voltage sensor is connected to solar panel bus-bar place, for detection of the d. c. voltage signal at bus-bar place, then the d. c. voltage signal detecting is flowed to microsystem by voltage detecting circuit, microsystem compares processing computing according to the voltage signal and the predefined voltage that receive, then the output voltage that regulates controlled power device by drive circuit, makes its output voltage stabilization.
Further, autonomous type solar panel multifunctional cleaning system as above, described snow melting heating system comprises the heater strip pad pasting that contains heater strip of shading light array periphery not, the temperature sensor that is arranged on solar panel lower limb, temperature sensor connects temperature sensing circuit, and temperature sensing circuit is connected with microsystem; Described heater strip pad pasting is connected with heating control circuit, and heating control circuit one tunnel is connected with microsystem, and a road is connected with controlled power device.
Further, autonomous type solar panel multifunctional cleaning system as above, described temperature sensor adopts Cu or Pt sensor.
Further, autonomous type solar panel multifunctional cleaning system as above, described cleaning spray system comprises and is evenly arranged foraminate jet pipe, jet pipe is connected with flexible pipe, flexible pipe is connected with spray pump, spray pump is connected with tank, described spray pump is also connected with spray pump control circuit, spray pump control circuit one tunnel is connected with microsystem, the d. c. voltage signal that is used for the solar panel bus-bar place receiving according to microsystem determines whether to open spray pump, and spray another road of pump control circuit is connected with controlled power device.
Further, autonomous type solar panel multifunctional cleaning system as above, described cleaning spray system also comprises the level detection sensor being arranged in tank, and described level detection sensor is connected with water level detection circuit, and water level detection circuit is connected with microsystem.
Further, autonomous type solar panel multifunctional cleaning system as above, described jet pipe is by the parallel upside that is fixed on solar panel of metal clamps.
The present invention has following advantage:
1. by the temperature of setting and the situation of voltage sensor energy determination and analysis photovoltaic cell substrate surface covering, for the work of automatic start-stop cleaning systems.
2. by heating element heater and the control system of laying, can solve the heating and melting dust removal problem while particularly having snow and ice cover thing winter.
3. by the spray system of laying, can solve the cleaning problems of dust-type covering.
4. by the electric power conversion apparatus laying, can solution never need peripheral hardware voltage, only have the problem of photocell conversion supplying clean system power supply.
5. by microsystem, realize the closed-loop control problems such as autonomous type heating, spray.
6, improve solar panel photoelectric transformation efficiency, extended service life.
Accompanying drawing explanation
Fig. 1 autonomous type solar panel of the present invention multifunctional cleaning system architecture schematic diagram.
Reference numeral:
1-jet pipe, 2-flexible pipe, 3-manual water valve, 4-metal clamps, 5-sprays pump, 6-tank, 7-level detection sensor, 8-water level detection circuit, 9-sprays pump control circuit, 10-solar panel, 11-bus-bar, 12-voltage sensor, 13-voltage detecting circuit, 14-controlled power device, 15-heater strip pad pasting, 16-temperature sensor, 17-temperature sensing circuit, 18-heating control circuit, 19-A/D converter, the built-in control program of 20-, 21-microsystem, 22-I/O delivery outlet, 23-drive circuit.
The specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below technical scheme in the present invention be clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 autonomous type solar panel of the present invention multifunctional cleaning system architecture schematic diagram, as shown in Figure 1, autonomous type solar panel multifunctional cleaning system provided by the invention mainly comprises: cleaning spray system, snow melting heating system, four parts such as supply convertor and the microsystem to snow melting heating system, cleaning spray system and supply convertor three links enforcement closed-loop controls.
Wherein, microsystem 21 comprises A/D converter 19, I/O delivery outlet 22 and built-in control program 20, this microsystem 21 can realize carry out the conversion of temperature, water level and voltage detection signal, relatively process, to functions such as the control output of three links and the setting of water level and photocell output voltage initial value such as heater strip pad pasting 15, spray pump 5 and supply convertors.
Described solar panel is the object of dedusting that these cleaning systems clean, it is the front end link of user's photovoltaic generating system, described cleaning spray system belongs to an automatic closed loop control system, by the situation of solar panel output voltage being detected and in conjunction with illumination natural time, determine the dust clean-up performance on cell panel surface, automatically controlled the autonomous spray and the dust removal process that realize solar panel surface by microsystem.Described cleaning spray system comprises jet pipe 1, flexible pipe 2, manual water valve 3, spray pump 5, tank 6, level detection sensor 7, the water level detection circuit 8 of hard plastic matter.The jet pipe 1 of described hard plastic matter, the manual water valve 3 being connected with jet pipe 1, the flexible glue class connecting hose 2 being connected with manual water valve 3, flexible pipe 2 connect spray pump 5, spray pump 5 is connected with tank 6, level detection sensor 7 is placed on the inwall of tank 6, level detection sensor 7 is connected with water level detection circuit 8, and water level detection circuit 8 is connected with the I/O delivery outlet 22 of microsystem 21; The control signal of described cleaning spray system is from the I/O delivery outlet 22 of microsystem 21, when first task, first set minimum height of water level by the built-in control program 20 of microcomputer minimum system 21, in long-term normal work, if do not change the size of tank, can again set, this object is to avoid burning the phenomenon of motor and occurring because 5 idle running of spray pump appear in tank water level not.
Described power source change device comprises the controlled power device 14 of voltage sensor 12, voltage detecting circuit 13, exportable three voltages of drive circuit 23 and the DC/DC translation circuit of electrical type device composition; 14 of described controlled power devices adopt the control mode of dutycycle, export three different voltages corresponding supplying clean spray system, snow melting heating system, supply convertor respectively; Described voltage sensor 12 inputs to the input voltage value of detection the A/D converter 19 of microsystem 21, the calculation process of the CPU of process microsystem 21, by the adjustable control signal of I/O delivery outlet 22 output duty cycles, by drive circuit 23, controlled power device 14 is carried out to closed-loop adjustment control again, thereby realize three road VDs, stabilize to respectively 5V, 12V and 24V, to guarantee microsystem, 21, spray pump control circuit 9 and 18 3 required working powers of link of heating control circuit.Described drive circuit 23 regulates controlled power device 14 for the bus-bar place output dc voltage signal receiving according to microsystem 21, three voltage stabilizations that controlled power device 14 is exported; The present invention is by being arranged on bus-bar 11 place's voltage sensors 12 of solar panel output, detect the situation of change of solar panel output voltage, as output voltage, lower than certain setting value, (this value can artificially be set by built-in control program, general initial value is made as the 60-70% of specified output), again in conjunction with the clock of setting in microcomputer minimum system 21, the situation of the sunny energy of comprehensive indirect identification battery surface dust, whether start work by microcomputer minimum system 21 from main control spray pump motor, reach the object of automatic spray dedusting.
Described snow melting heating system belongs to an automatic closed loop control system, by the temperature on solar panel 10 surfaces that detect with in conjunction with the situation of solar panel 10 output voltages, determine freezing and snow and ice cover degree of solar panel 10 surfaces, automatically control by microsystem 21 heat treated realizing solar panel 10 surperficial ice and snow.Described snow melting heating system comprises pad pasting 15, heating control circuit 18, temperature sensor 16 and the temperature sensing circuit 17 of the heater strip that contains heater strip.The temperature on the solar panel surface that described snow melting heating system detects by temperature sensor 16, gone out by software indirect identification according to the surface temperature detecting that freeze in cell panel surface and the situation of covering, by comparing in the design temperature of microsystem 21, send by the I/O delivery outlet 22 of microsystem 21 command signal that whether starts heating ice-melt snow to heating control circuit 18 again.The described heater strip pad pasting 15 containing the heater strip not periphery of shading light array that is laid in, and whole plate heater strip communicates, heating strip control circuit 18 is made up of controllable relays, and temperature sensor 16 adopts Cu or Pt sensor, is arranged on the lower edge place of cell panel.
The DC voltage at solar panel bus-bar 11 places is on the spot taken from the input of supply convertor of the present invention; controlled power device inside forms three road ckuk class DC/DC chopper circuits; and with voltage stabilizing current-limiting protection function; the control signal of supply convertor is from the I/O delivery outlet 22 of microsystem 21; three road output voltage grades are respectively 5V, 12V and 24V; for and the supply terminals of the CPU of microsystem 21, heating control circuit 18 and spray pump control circuit 9 join, for three links provide respectively working power.
Described microsystem 21 systems realize the processing to temperature and voltage detection signal, control algorithm, the setting of temperature, water level and the given signal of voltage, realize for the time clock feature of identifying day and night, and output to cleaning spray system, snow melting heating system and three link control signals of supply convertor etc.
The present invention installs two metal clamps 4 at the top edge of solar panel 10, described hard plastic matter jet pipe 1 is laid in the middle of metal clamps, its diameter is at φ 3-φ 5, jet pipe 1 downside has uniform little spray orifice (nozzle hole number is determined according to the length of solar panel), jet pipe 1 one end seals with soft material, the other end is installed two logical rotary handle type manual water valves 3, and manual water valve 3 other ends are connected to spray pump 5 delivery ports that are arranged on the back side by φ 3-φ 5 flexible pipes 2.
The present invention arranges a copper resistance temperature sensor 16 in the lower limb appropriate location of solar panel 10, draws dc source to controlled power device 14 by the bus-bar 11 of solar panel 10.
Described spray pump 5 is selected the motor of 12V direct current supply, and water inlet end inserts the position near bottom in tank 6, and delivery port one end is connected with flexible pipe 2.Tank 6 can be welded or directly be selected by sheet iron the Plastic Drum of hard plastic material, more than volume 20 liters, pack clean water summer into, can pack the solution that contains anti-icing fluid winter into, described level detection sensor 7 is arranged on the sidewall of tank 6, described level detection sensor 7 is dry spring class level sensor, with switching value formal output.
Described microsystem packs ready made can must sealing in control box by rainwater-proof into, and control box is placed on near safer place solar panel.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. an autonomous type solar panel multifunctional cleaning system, is characterized in that, comprises for by the snow melting heating system of the ice dissolution of solar cell surface; For removing the cleaning spray system of solar cell surface dust; Be used to snow melting heating system, cleaning spray system, microsystem that the power source change device of different operating voltage is provided; And for cleaning spray system, snow melting heating system and power source change device three links being implemented to the microsystem of closed-loop control.
2. autonomous type solar panel multifunctional cleaning system according to claim 1, is characterized in that, described power source change device comprises controlled power device, voltage sensor, voltage detecting circuit, the drive circuit of exportable three voltages; The DC voltage that is input as solar panel bus-bar place of described controlled power device, it is output as three-dimensional voltage and is respectively used to provide different operating voltages for cleaning spray system, snow melting heating system, microsystem; Described voltage sensor is connected to solar panel bus-bar place, for detection of the d. c. voltage signal at bus-bar place, then the d. c. voltage signal detecting is flowed to microsystem by voltage detecting circuit, microsystem compares processing computing according to the voltage signal and the predefined voltage that receive, then the output voltage that regulates controlled power device by drive circuit, makes its output voltage stabilization.
3. autonomous type solar panel multifunctional cleaning system according to claim 2, it is characterized in that, described snow melting heating system comprises the heater strip pad pasting that contains heater strip of shading light array periphery not, the temperature sensor that is arranged on solar panel lower limb, temperature sensor connects temperature sensing circuit, and temperature sensing circuit is connected with microsystem; Described heater strip pad pasting is connected with heating control circuit, and heating control circuit one tunnel is connected with microsystem, and a road is connected with controlled power device.
4. autonomous type solar panel multifunctional cleaning system according to claim 3, is characterized in that, described temperature sensor adopts Cu or Pt sensor.
5. autonomous type solar panel multifunctional cleaning system according to claim 1, it is characterized in that, described cleaning spray system comprises and is evenly arranged foraminate jet pipe, jet pipe is connected with flexible pipe, flexible pipe is connected with spray pump, spray pump is connected with tank, described spray pump is also connected with spray pump control circuit, spray pump control circuit one tunnel is connected with microsystem, the d. c. voltage signal that is used for the solar panel bus-bar place receiving according to microsystem determines whether to open spray pump, and spray another road of pump control circuit is connected with controlled power device.
6. autonomous type solar panel multifunctional cleaning system according to claim 5, it is characterized in that, described cleaning spray system also comprises the level detection sensor being arranged in tank, described level detection sensor is connected with water level detection circuit, and water level detection circuit is connected with microsystem.
7. according to the autonomous type solar panel multifunctional cleaning system described in claim 5 or 6, it is characterized in that, described jet pipe is by the parallel upside that is fixed on solar panel of metal clamps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410088546.7A CN103846244B (en) | 2014-03-12 | 2014-03-12 | Autonomous type solar panel multifunctional cleaning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410088546.7A CN103846244B (en) | 2014-03-12 | 2014-03-12 | Autonomous type solar panel multifunctional cleaning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103846244A true CN103846244A (en) | 2014-06-11 |
| CN103846244B CN103846244B (en) | 2016-06-08 |
Family
ID=50854631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410088546.7A Expired - Fee Related CN103846244B (en) | 2014-03-12 | 2014-03-12 | Autonomous type solar panel multifunctional cleaning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103846244B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096691A (en) * | 2014-07-21 | 2014-10-15 | 山东鲁班智能装备有限公司 | Steam cleaning system for photovoltaic solar power station |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11215733A (en) * | 1998-01-21 | 1999-08-06 | Mitsubishi Electric Corp | Solar battery snow melting equipment for sunlight generator |
| CN201950044U (en) * | 2010-12-28 | 2011-08-31 | 程智锋 | System utilizing high-pressure water flow to automatically dedust solar panel array |
| CN202667184U (en) * | 2012-07-25 | 2013-01-16 | 中节能吴忠太阳山光伏发电有限责任公司 | Washing and cooling system for solar component of photovoltaic grid-connected power plant |
| CN202771198U (en) * | 2012-09-20 | 2013-03-06 | 台州职业技术学院 | High pressure cleaning machine control circuit |
| CN203140363U (en) * | 2013-03-03 | 2013-08-21 | 蔡瑾玒 | Solar cell panel snow removal device |
| CN103316861A (en) * | 2013-07-10 | 2013-09-25 | 中国科学院广州能源研究所 | Water-saving device automatically cleaning accumulated dust on surface of photovoltaic module |
| CN203235705U (en) * | 2013-04-18 | 2013-10-16 | 内蒙古电力勘测设计院 | Automatic cleaning device of solar photovoltaic module |
| CN103381413A (en) * | 2013-06-24 | 2013-11-06 | 中利腾晖(嘉峪关)光伏发电有限公司 | Snow melting system of photovoltaic power station |
| CN103495575A (en) * | 2013-09-18 | 2014-01-08 | 丛伟国 | Solar cell panel cleaning system |
-
2014
- 2014-03-12 CN CN201410088546.7A patent/CN103846244B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11215733A (en) * | 1998-01-21 | 1999-08-06 | Mitsubishi Electric Corp | Solar battery snow melting equipment for sunlight generator |
| CN201950044U (en) * | 2010-12-28 | 2011-08-31 | 程智锋 | System utilizing high-pressure water flow to automatically dedust solar panel array |
| CN202667184U (en) * | 2012-07-25 | 2013-01-16 | 中节能吴忠太阳山光伏发电有限责任公司 | Washing and cooling system for solar component of photovoltaic grid-connected power plant |
| CN202771198U (en) * | 2012-09-20 | 2013-03-06 | 台州职业技术学院 | High pressure cleaning machine control circuit |
| CN203140363U (en) * | 2013-03-03 | 2013-08-21 | 蔡瑾玒 | Solar cell panel snow removal device |
| CN203235705U (en) * | 2013-04-18 | 2013-10-16 | 内蒙古电力勘测设计院 | Automatic cleaning device of solar photovoltaic module |
| CN103381413A (en) * | 2013-06-24 | 2013-11-06 | 中利腾晖(嘉峪关)光伏发电有限公司 | Snow melting system of photovoltaic power station |
| CN103316861A (en) * | 2013-07-10 | 2013-09-25 | 中国科学院广州能源研究所 | Water-saving device automatically cleaning accumulated dust on surface of photovoltaic module |
| CN103495575A (en) * | 2013-09-18 | 2014-01-08 | 丛伟国 | Solar cell panel cleaning system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096691A (en) * | 2014-07-21 | 2014-10-15 | 山东鲁班智能装备有限公司 | Steam cleaning system for photovoltaic solar power station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103846244B (en) | 2016-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204670081U (en) | Solar energy infrared induction water supply and sewage drinking trough | |
| CN205403243U (en) | Air can soil heat accumulation and cold -storage device | |
| CN108499956A (en) | A kind of solar panels automatic cleaning apparatus | |
| CN205641311U (en) | Solar air conditioner | |
| CN208332438U (en) | Solar energy heating installation complementary with heat pump | |
| CN209562503U (en) | A kind of solar energy photovoltaic panel and for solar energy photovoltaic panel clear the snow and cooling device | |
| CN205447976U (en) | Solar energy can complementary hot -water heating system with air | |
| CN103277575A (en) | Antifreezing faucet | |
| CN103846244A (en) | Autonomous solar panel multifunctional integral cleaning system | |
| CN204943652U (en) | High-efficiency and energy-saving type heat-exchange system | |
| CN208542636U (en) | A kind of solar panels automatic cleaning apparatus | |
| CN203388065U (en) | Solar full-automatic livestock drinking water system | |
| CN203571850U (en) | Energy-saving photovoltaic solar low-voltage heating system | |
| CN109951151A (en) | A kind of intelligent cooling type photovoltaic system | |
| CN105318409A (en) | Indoor heating device achieving power supply through solar energy | |
| CN102620431B (en) | Water saving device applicable to various water heaters | |
| CN108146311A (en) | A kind of push type tail gas heats armrest system | |
| CN204345843U (en) | A kind of heating air-conditioner system of photovoltaic ground source heat pump integrated | |
| CN204478542U (en) | The antifreeze monitoring system of a kind of solar water heater | |
| CN208036045U (en) | A kind of push type tail gas heating armrest system | |
| CN208671124U (en) | Heating system | |
| CN206739652U (en) | A kind of solar water heater of Intelligent anti-freezing | |
| CN104990127A (en) | Efficient heat exchange device of heating electric heater | |
| CN204535150U (en) | The solar water heater that a kind of environmental suitability is strong | |
| CN206094549U (en) | Split type water tank heat pump family hot -water heating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: CHANGCHUN UNIVERSITY OF TECHNOLOGY Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Wei Wei Document name: Notice of termination of patent |
|
| 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: 20160608 Termination date: 20200312 |