CN2669100Y - Photovoltaic driving refrigeration device - Google Patents
Photovoltaic driving refrigeration device Download PDFInfo
- Publication number
- CN2669100Y CN2669100Y CNU2003201252952U CN200320125295U CN2669100Y CN 2669100 Y CN2669100 Y CN 2669100Y CN U2003201252952 U CNU2003201252952 U CN U2003201252952U CN 200320125295 U CN200320125295 U CN 200320125295U CN 2669100 Y CN2669100 Y CN 2669100Y
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- Prior art keywords
- refrigerator
- battery
- solar cell
- switch
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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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Abstract
The utility model discloses a photovoltaic driving refrigeration device, comprising a refrigerator with a DC compressor and a solar battery supplying direct current power supply for the refrigerator. The utility model is characterized in that the utility model also comprises an accumulator that is connected with the refrigerator, the solar battery and the controller of the accumulator; a first switching device, a battery charging circuit and a compressor power circuit are provided in the controller, and the first switching device is optionally communicated with the battery charging circuit or the compressor power circuit; the microprocessor of the controller controls the first switching device according to incoming signals. The advantages of the utility model are energy-saving, environment-protecting and all day continuous operation.
Description
Technical field
The utility model relates to solar energy switch technology field and control technology field, more particularly, relates to a kind of photovoltaic and drives refrigerating plant.
Background technology
The enhancing of and environmental consciousness energy-conservation along with people, solar energy more and more is widely used, and the utilization of solar energy has become various countries scientific and technical personnel's a striving direction.In solar energy utilized, solar refrigeration refrigerator, refrigerator were fields that has development prospect, also are the focuses in the current refrigeration research.The realization approach that solar energy is used for refrigerator and refrigerator technology has three: absorption type, and absorption, three kinds of photovoltaic cell change types.Preceding two kinds of forms are because of system complex, and refrigeration also has more remote than compression-type refrigeration difference from popularization and application.September 5 calendar year 2001, disclosed notification number was 2446465 Chinese utility model patent, a kind of employing solar photovoltaic driving technology is disclosed, utilize the refrigerator of solar cell for supplying power, this refrigerator will be input to freezer compressor by the direct current that solar cell produces after exchanging conversion.This refrigerator is owing to used AC conversion apparatus to make that Circuits System is loaded down with trivial details, implementation is complicated, and it does not consider continuous wet weather, the objective circumstances of sunlight deficiency.
The utility model content
The technical problems to be solved in the utility model provides that a kind of circuit is simple, the photovoltaic of environmental protection and energy saving drives refrigerating plant, this device can be under different weather round-the-clock operate as normal, to solve the deficiencies in the prior art.
The scheme that solves the problems of the technologies described above is such: a kind of photovoltaic drives refrigerating plant, comprise refrigerator that direct current compressor is housed, the solar cell of dc source is provided to refrigerator, it is characterized in that: also comprise battery, and connect the controller of described refrigerator, solar cell and battery, be provided with first switch of one of battery charging circuit and compressor power supply circuits and optionally connected logical two circuit in the described controller, the microprocessor of described controller is controlled the action of first switch according to input signal.
Above-mentioned photovoltaic drives refrigerating plant, it is characterized in that: described battery charging circuit also is connected to solar cell self discharge circuit and second switch of one of optionally connected logical described battery charging circuit and solar cell self discharge both circuits.Above-mentioned photovoltaic drives refrigerating plant and also comprises in order to cut off three switch of described battery to the refrigerator power supply circuits.
Implement apparatus and method of the present utility model, by being equipped with external battery and to distributing rationally by the power supply between solar cell, battery and refrigerating plant, make system operate in best duty, solve the shortcoming that present solar energy refrigerator implementation complexity, control are too simple, can't use all the year round, had the advantage of energy-saving and environmental protection, round-the-clock continuous operation.
Description of drawings
Fig. 1 drives the structural representation of refrigerating plant for the utility model photovoltaic;
Fig. 2 drives the logic block-diagram of control system among the refrigerating plant embodiment for the utility model photovoltaic;
Fig. 3 is the utility model circuit diagram;
Fig. 4 is the flow chart of the utility model control method embodiment.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Referring to Fig. 1, solar cell 1 in the utility model, solar cell 1 comprises a device that is used to collect the light collecting plate of solar energy and luminous energy is converted into electric energy, battery 4 is connected with refrigerator or refrigerator 2 by intelligent controller 3, and solar cell 1, battery 4 parallel connections are to refrigerator or refrigerator 2 power supplies.
Referring to Fig. 2, microprocessor 40 has voltage signal input module 10 at input port, charge characteristic signaling module 20, and temperature signal input module 30 is connected with control output module 50 at output port, shows output module 60.Importantly at charge characteristic signaling module 20 and temperature signal input module, temperature signal comprises the set temperature value of refrigerator or refrigerator, by the temperature data of temperature-sensitive head actual measurement, CPU determines whether needs work and export control signal and make direct current compressor get electric operation or cut off the power supply out of service of compressor according to temperature signal.In charge characteristic signaling module 20, by fuzzy logic ordination study battery characteristics curve, obtain representing the percentage parameter (SOC) of battery state of charge, according to the SOC of battery and in conjunction with the need of work of compressor, CPU exports control, comprise battery charge and discharge control, solar cell self discharge control, solar cell is to compressor power supply control.
In Fig. 2, voltage signal input module 10 is with the signal of solar array voltage, battery tension input CPU and show in showing output module 50, and the current value that described demonstration output module can also output loading (refrigerator or refrigerator) shows, battery fills state show, make mistakes demonstration or alarm function.
Referring to Fig. 3, controller is provided with M+, M-, A+, A-and L+, L-interface, interface respectively with the solar cell both positive and negative polarity, accumulator anode and cathode and refrigerator direct current compressor both positive and negative polarity connect, dotted portion is the intelligent controller part among the figure, and T1, T2, T3 are respectively the switches of first, second, third switch.First switch can be connected the compressor power supply circuits or disconnect the compressor power supply circuits and connect battery charging circuit and the branch road of solar cell self discharge circuit parallel connection.Select to connect battery charging circuit or solar cell self discharge circuit by second switch again.
When first switch connection compressor power supply circuits, solar cell refrigerator or the refrigerator 2 given simultaneously in parallel with battery powered, and when the electrical energy parameter of battery was lower than certain value, the switch of the 3rd switch disconnected, and battery stops to refrigerator or refrigerator power supply.
Referring to Fig. 4, controller CPU is determined whether needs work of compressor according to temperature signal, if microprocessor is controlled first switch and connected the compressor power supply circuits; Otherwise disconnect the compressor power supply circuits.After connecting the compressor power supply circuits, battery is in parallel with solar cell to refrigerator or refrigerator power supply, battery is in power supply process, by a kind of specific fuzzy logic ordination study battery characteristics curve, battery state of charge (SOC) error of study gained is controlled at about 10%, when the SOC value is cut off battery and refrigerator or refrigerator circuit loop less than 30%, the three switch, battery stops refrigerator or refrigerator are powered; Be higher than 50%, the three switch again and reclose the battery circuit loop when learning charged state (SOC), battery recovers refrigerator or refrigerator power supply.
When compressor does not need work, the first switch work, cut-out is to the power supply of refrigerator or refrigerator, CPU judges the electrical energy parameter of battery, if battery is less than dashing, then control second switch and connect battery charging circuit, system is according to the SOC value and utilize the temperature following feedback of charging voltage, the hybrid circuit that application has pulse width modulation function provides the constant charge electric current and prevents overcharge, guarantees that maximum charging voltage is no more than 15 volts.When the battery electricity completely dashes, and compressor not be need move the time, and second switch is connected solar energy self discharge circuit, and control system is regulated built-in resistor automatically, realizes the automatic discharging function of solar energy, effectively protection system.
When control system is carried out the course of work, system state of charge (SOC), charging current and load (refrigerator or refrigerator) size of current etc. show by LCD (LCD) that this shows output mode 60, and mode of operation, make mistakes promptings, load conducting sign and alarm etc. are by electronic display (LED) demonstration.Therefore can to this control system duty individual being directly acquainted be arranged by vision, be convenient to operation and control system, guarantee system's operational excellence.
Battery of the present utility model can be selected the product of the PVX-12100 model of the product of E24SLDG model of (Battery Specialists) company or Concorde Battery company for use, and solar cell can be selected the CAN#US-64 of Canon Unisolar company or the SX75TU type product of Bp company for use.The compressor parameter is chosen as rated voltage 12V, rated current 8A.
Claims (4)
1. a photovoltaic drives refrigerating plant, comprise refrigerator that direct current compressor is housed, the solar cell of dc source is provided to refrigerator, it is characterized in that: also comprise battery, and connect the controller of described refrigerator, solar cell and battery, be provided with first switch of one of battery charging circuit and compressor power supply circuits and optionally connected logical two circuit in the described controller, the microprocessor of described controller is controlled the action of first switch according to input signal.
2. photovoltaic according to claim 1 drives refrigerating plant, it is characterized in that: described battery charging circuit also is connected to solar cell self discharge circuit and second switch of one of optionally connected logical described battery charging circuit and solar cell self discharge both circuits.
3. photovoltaic according to claim 2 drives refrigerating plant, it is characterized in that: in the described solar cell self discharge circuit adjustable resistance is set.
4. photovoltaic according to claim 1 and 2 drives refrigerating plant, it is characterized in that: also comprise in order to cut off three switch of described battery to the refrigerator power supply circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201252952U CN2669100Y (en) | 2003-12-26 | 2003-12-26 | Photovoltaic driving refrigeration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201252952U CN2669100Y (en) | 2003-12-26 | 2003-12-26 | Photovoltaic driving refrigeration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2669100Y true CN2669100Y (en) | 2005-01-05 |
Family
ID=34439332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201252952U Expired - Fee Related CN2669100Y (en) | 2003-12-26 | 2003-12-26 | Photovoltaic driving refrigeration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2669100Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337081C (en) * | 2003-12-26 | 2007-09-12 | 广东科龙电器股份有限公司 | Photovoltaic driving refrigerating unit and control method thereof |
| EP2801871A3 (en) * | 2013-05-08 | 2015-11-25 | Solis S.p.A. | Cold logistic hub powered by photovoltaic energy |
-
2003
- 2003-12-26 CN CNU2003201252952U patent/CN2669100Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337081C (en) * | 2003-12-26 | 2007-09-12 | 广东科龙电器股份有限公司 | Photovoltaic driving refrigerating unit and control method thereof |
| EP2801871A3 (en) * | 2013-05-08 | 2015-11-25 | Solis S.p.A. | Cold logistic hub powered by photovoltaic energy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |