CN101886866B - Solar semiconductor refrigerator - Google Patents
Solar semiconductor refrigerator Download PDFInfo
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- CN101886866B CN101886866B CN 200910064913 CN200910064913A CN101886866B CN 101886866 B CN101886866 B CN 101886866B CN 200910064913 CN200910064913 CN 200910064913 CN 200910064913 A CN200910064913 A CN 200910064913A CN 101886866 B CN101886866 B CN 101886866B
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Abstract
The invention discloses a solar semiconductor refrigerator, which comprises a semiconductor refrigeration device, a solar-cell panel and a solar-cell panel output power voltage reduction, voltage stabilization and current device, wherein the input end of the solar-cell panel output power voltage reduction, voltage stabilization and current device is connected with the power output end of the solar-cell panel, while the output end is connected with the power supply input end of the semiconductor refrigeration device. The output power of the solar-cell panel is subjected to voltage reduction, voltage stabilization and constant flow treatment by the solar-cell panel output power voltage reduction, voltage stabilization and current device and then is directly supplied to the semiconductor refrigeration device without using a storage battery, so the structure of the solar semiconductor refrigerator is more stable, the weigh is lighter and the volume is smaller; in addition, a commercial power switching control unit and a current sampling module can be provided, and according to the sampling signal of the current sampling module, the commercial switching control unit is controlled to connect or disconnect a commercial power supply and the power supply end of the semiconductor refrigeration device and the semiconductor refrigeration device is controlled to be powered by the commercial power supply and solar.
Description
Technical field
The present invention relates to a kind of solar semiconductor refrigerator that does not need battery.
Background technology
At present, semiconductor freezer is progressively promoted now, and it progressively substitutes the parts of traditional refrigerator with advantages such as its energy-conserving and environment-protective, noiselessness, and by the semiconductor refrigeration system of Driven by Solar Energy; Compact conformation, easy to carry, working service is simple; Security performance is good, compares with general mechanical refrigeration, and it does not need pump; Therefore moving components such as compressor do not exist wearing and tearing and noise, and it does not need cold-producing medium; Therefore can not produce environmental pollution, also save complicated transfer conduit, the advantage of these nothing department analogies is worth using and development.
Semiconductor freezer has progressively pushed market now; But the solar semiconductor refrigerator product rarely has information on the market; Be main how, announced a kind of solar semiconductor refrigerator, comprise solar panel, battery, controller, semiconductor cooling device like Chinese patent 01239142.5 with paper, concept type product; The factor restriction of several aspects is arranged: 1. according to general thinking; Solar semiconductor refrigerator generally will partly be made up of solar panel, battery, power-supply controller, semiconductor cooling device etc., and volume is big, Heavy Weight, needs often to safeguard; 2. because the characteristic of solar panel has determined solar panel shining upon ability operate as normal down, so solar semiconductor refrigerator must operate at and shines upon environment, the job site is restricted; 3. solar panel must shine upon ability operate as normal down; Can not generate electricity evening; Want to guarantee that solar semiconductor refrigerator work in 24 hours just must increase energy-storage units and increase the solar cell power output plate; Loss in order to offset the energy storage and to discharge will increase the solar cell power output plate once more, and above several reasons directly causes production program and product cost to increase; 4. same refrigerating efficiency makes the weight and volume of product increase owing to increase energy-storage units with increase solar cell power output plate; 5. energy-storage units is considered cost factor, be main with lead-acid accumulator how, and service life is compared weak point by lead-acid accumulator with solar panel, need periodic replacement, increases follow-up maintenance fund input etc.
Summary of the invention
The purpose of this invention is to provide a kind of solar semiconductor refrigerator that does not need battery, simple in structure, in light weight, volume is little, does not need frequent maintenance.
A kind of solar semiconductor refrigerator; Comprise semiconductor cooling device, solar panel; Wherein, Also comprise the step-down of solar panel output electric energy, voltage stabilizing, constant-current device, the input of this solar panel output electric energy step-down, voltage stabilizing, constant-current device connects the electric energy output end of solar panel, and the output of this solar panel output electric energy step-down, voltage stabilizing, constant-current device connects the power supply input of said semiconductor cooling device; The step-down of described solar panel output electric energy, voltage stabilizing, constant-current device comprise solar energy step-down, Voltage stabilizing module, constant flow module; The input of this solar energy step-down, Voltage stabilizing module connects the electric energy output end of solar panel, and the output of this constant flow module connects the power supply input of said semiconductor cooling device; Described solar semiconductor refrigerator also comprises civil power switch control unit, mains-supplied processing module; The step-down of described solar panel output electric energy, voltage stabilizing, constant-current device also comprise current sampling module; The input of this current sampling module connects the output of this solar energy step-down, Voltage stabilizing module; First output of this current sampling module connects the input of said constant flow module; Second output of this current sampling module connects the control signal input of this civil power switch control unit; The mains-supplied input of this civil power switch control unit is used to be connected in mains supply, and the output of this civil power switch control unit connects the input of said mains-supplied processing module, and the output of mains-supplied processing module connects the power supply input of semiconductor cooling device.
Described solar semiconductor refrigerator; Wherein, Described solar energy step-down, Voltage stabilizing module comprise a step-down current stabilization chip; The input of this step-down current stabilization chip connects the output of said solar panel, and the output of this step-down current stabilization chip is used to connect the input of said current sampling module.
Described solar semiconductor refrigerator, wherein, described current sampling module comprises sample resistance, and an end of this sample resistance is used to connect the output of said step-down current stabilization chip, and the other end of this sample resistance is used to connect the input of said constant flow module; Described civil power switch control unit comprises a switch triode, relay; Corresponding respectively two links that are connected said sample resistance of the base stage of this switch triode, emitter stage; The colelctor electrode of this switch triode is used to connect the coil of said relay, and the normally closed contact of this relay is serially connected on the connection line between mains supply and the said mains-supplied processing module input.
Described solar semiconductor refrigerator, wherein, the model that described step-down current stabilization chip adopts is MP8666.
The present invention adopts technique scheme will reach following technique effect:
Solar semiconductor refrigerator of the present invention; Through the step-down of solar panel output electric energy, voltage stabilizing, constant-current device the step-down of output electric energy, voltage stabilizing, the constant current of solar panel are directly supplied power to semiconductor cooling device after handling; Do not adopt battery, structure is simpler, in light weight, volume is little; On this solar semiconductor refrigerator electric power system, the civil power switch control unit is set; The step-down of described solar panel output electric energy, voltage stabilizing, constant-current device comprise current sampling module; Control the civil power switch control unit by the sampled signal of current sampling module and whether be communicated with between mains supply and the semiconductor cooling device feeder ear, so, when solar energy is enough to the semiconductor cooling device power supply to this semiconductor freezer; The civil power switch control unit breaks off the connection line between mains supply and the semiconductor cooling device feeder ear; When solar energy weakens or do not have, be not enough to semiconductor cooling device power supply to this semiconductor freezer, the civil power switch control unit is connected the connection line between mains supply and the semiconductor cooling device feeder ear; So, can uninterruptedly supply power to semiconductor cooling device.As above visible, solar semiconductor refrigerator of the present invention is compared solar semiconductor refrigerator of the prior art, does not need battery, and structure is simpler, and when power was identical, weight was lighter, volume is littler.
Description of drawings
Fig. 1 is the syndeton sketch map of solar powered circuit, mains-supplied circuit and civil power switch control unit in the solar semiconductor refrigerator of the present invention;
Fig. 2 is a kind of circuit theory diagrams of solar powered circuit in the solar semiconductor refrigerator shown in Figure 1, mains-supplied circuit and civil power switch control unit.
The specific embodiment
A kind of solar semiconductor refrigerator; Comprise semiconductor cooling device 5, solar panel 2; Wherein, Also comprise the step-down of solar panel output electric energy, voltage stabilizing, constant-current device, civil power switch control unit D, mains-supplied processing module 4; As shown in Figure 1; The step-down of described solar panel output electric energy, voltage stabilizing, constant-current device comprise solar energy step-down, Voltage stabilizing module A, current sampling module B, constant flow module C, and the input of this solar energy step-down, Voltage stabilizing module A connects the electric energy output end of solar panel 2, and the output of this solar energy step-down, Voltage stabilizing module connects the input of current sampling module B; First output of this current sampling module B connects the input of said constant flow module C; Second output of this current sampling module B connects the control signal input of said civil power switch control unit D, and the mains-supplied input of this civil power switch control unit D is used to be connected in mains supply 1, and the output of this civil power switch control unit D connects the power supply input of said semiconductor cooling device 5.
Fig. 2 is a kind of circuit theory diagrams of solar powered circuit in the solar semiconductor refrigerator shown in Figure 1, mains-supplied circuit and civil power switch control unit; Described solar energy step-down, Voltage stabilizing module comprise a step-down current stabilization chip U1 (model of employing is MP8666); Described current sampling module comprises sample resistance R5, and described civil power switch control unit comprises a positive-negative-positive switch triode Q1, relay K 1; Be connected with a filtering capacitance of voltage regulation C1 between input 8 pin of this step-down current stabilization chip U1 and the connector J1; This connector J1 is used to connect the output of said solar panel; Output 1 pin of this step-down current stabilization chip U1 connects the end of said sample resistance R5 through filter inductance L1, electric capacity of voltage regulation C4; The other end of this sample resistance R5 connects input 2 pin of voltage stabilization and current stabilization device U2 in the said constant flow module (model of employing is LM138); This constant flow module is made up of a voltage stabilization and current stabilization device U2, current-limiting resistance R10 serial connection; The output of current-limiting resistance R10 connects connector J2 through a commutation diode D6, and this connector J2 is used to connect the power supply input of said semiconductor cooling device; Described civil power switch control unit comprises a positive-negative-positive switch triode Q1 (model of employing is 9012), relay K 1, current-limiting resistance R11, light emitting diode D2; Corresponding respectively two links that are connected said sample resistance R5 of the base stage of this switch triode Q1, emitter stage; The colelctor electrode of this switch triode Q1 connects the coil of said relay K 1 through current-limiting resistance R11, light emitting diode D2, and the normally closed contact of this relay K 1 is serially connected in mains supply attachment plug J3 and is connected on the connection line between the plug-in unit J4 with said mains-supplied processing module input.The mains-supplied processing module is ripe application the on semiconductor freezer, repeats no more here; The 7th pin of step-down current stabilization chip U1 is an Enable Pin; Step-down current stabilization chip U1 work during greater than 2.0V; Resistance R 3, light emitting diode D1 serial connection constitute solar powered indicating circuit; The other end of resistance R 3 is connected between input 8 pin of connector J1 and step-down current stabilization chip U1; The positive pole of light emitting diode D1 connects the 7th pin of step-down current stabilization chip U1, and the power supply signal of solar panel is delivered to the 7th pin of step-down current stabilization chip U1 after resistance R 3 step-downs are handled, and makes step-down current stabilization chip U1 work.The 3rd pin of step-down current stabilization chip U1 is the driving bias supply of the 4th pin.The 5th pin of step-down current stabilization chip U1 is an earth terminal.The 6th pin of step-down current stabilization chip U1 is a reference voltage output terminal; Be connected in the intermediate node of resistance R 1, R2; The input of resistance R 1 connects output the 1st pin of step-down current stabilization chip U1 through inductance L 1; The output head grounding of resistance R 2 selects the resistance of resistance R 1, R2 can regulate the 1st pin output voltage of step-down current stabilization chip U1; The 4th pin of step-down current stabilization chip U1 and FET M1 constitute the output voltage stabilizing circuit of step-down current stabilization chip U1; When the 8th pin input voltage of step-down current stabilization chip U1 increases; The 4th pin of step-down current stabilization chip U1 has high voltage output; FET M1 conducting is played the voltage stabilizing purpose with the increase electric weight ground connection that the 1st pin of step-down current stabilization chip U1 is exported.When the output voltage of step-down current stabilization chip U1 and the ratio of input voltage＞65%; The 5V voltage of the output output of voltage-stablizer D7 is handled the 2nd pin that step-down current stabilization chip U1 is inserted in the back through commutation diode D5 rectification; It is 7805 that voltage-stablizer D7 adopts model; Its input is connected in the output that is connected in filter inductance L1 through a divider resistance R4, and the input of filter inductance L1 connects output the 1st pin of step-down current stabilization chip U1; The 1st pin of the 2nd pin of step-down current stabilization chip U1 and step-down current stabilization chip U1 meets an electrochemical capacitor C3 increases track stability; When the voltage at sample resistance R5 two ends >=0.7V, the emitter and collector circuit turn-on of switch triode Q1, light emitting diode D2 is shinny, relay K 1 electric, its normally-closed contact breaks off, the input of also just having broken off civil power 220V ac plug J3; Capacitor C 10 1 end ground connection, the other end connect the input of voltage stabilization and current stabilization device U2, have been used for pressure stabilization function.The constant flow module that voltage stabilization and current stabilization device U2, resistance R 10 are formed through the resistance of controlling resistance R10, is regulated the size of current that flows through; The series circuit of resistance R 7, light emitting diode D3 is connected between the output and ground of resistance R 10, is used to show solar powered situation.Commutation diode D6 make circuit output from the positive pole of D6 to the unidirectional conducting voltage of negative pole, when preventing mains-supplied solar powered circuit is impacted.Electrochemical capacitor C5 plays pressure stabilization function.
A) when solar radiation was enough strong, solar panel 2 electromotive power outputs were enough big, the output electric energy of solar panel 2 through solar energy step-down, Voltage stabilizing module A reduction regulation to about the 12V.Current sampling module B, constant flow module C, civil power switching controls module D are passed through in the output of solar energy step-down, Voltage stabilizing module A again, and the output of constant flow module C is enough to the semiconductor cooling device power supply to semiconductor freezer, does not need mains-supplied; Civil power switching controls module D is delivered in the sampling of current sampling module B output simultaneously, drives civil power switching controls module D and breaks off being connected between mains supply and the mains-supplied processing module 4.
When B) solar radiation is weak; Solar panel 2 electromotive power outputs are little; The output of solar panel 2 connects solar energy step-down, Voltage stabilizing module A, and solar energy step-down, Voltage stabilizing module A are adjusted to the output voltage of solar panel 2 about 12V, and the output of solar energy step-down, Voltage stabilizing module A is connected to current sampling module B; Current sampling module B gets the output current of solar energy step-down, Voltage stabilizing module A; Current sampling module B connects constant flow module C and civil power switching controls module D, and constant flow module C uses the constant current circuit, and civil power switching controls module D is through judging the size of taking a sample among the sampling module B; At this moment the undersampling among the current sampling module B is with control civil power switching controls module D work; Civil power switching controls module D keeps the power supply of civil power (220V alternating current) to mains-supplied processing module 4, and mains-supplied processing module 4 imports 1 through after step-down, rectification, the filtering being semiconductor cooling device 5 power supplies, semiconductor freezer work with civil power (220V alternating current).And the electric current that flows through current sampling module B simultaneously is semiconductor cooling device 5 power supplies after passing through constant flow module C.At this moment the electric energy that provides of solar energy is the pressure that can share mains-supplied.
C) when not having solar radiation; Not output of solar panel 2; Almost there is not circuit flow overcurrent sampling module B; Current sampling module B can't make civil power switching controls module D work, and civil power switching controls module can not be worked, and civil power switching controls module D keeps the power supply of civil power (220V alternating current) to mains-supplied processing module 4; Mains-supplied processing module 4 is that semiconductor cooling device 5 is supplied power semiconductor freezer work separately after civil power (220V alternating current) is imported process step-down, rectification, filtering.
Claims (4)
1. solar semiconductor refrigerator; Comprise semiconductor cooling device, solar panel; It is characterized in that: also comprise the step-down of solar panel output electric energy, voltage stabilizing, constant-current device; The input of this solar panel output electric energy step-down, voltage stabilizing, constant-current device connects the electric energy output end of solar panel, and the output of this solar panel output electric energy step-down, voltage stabilizing, constant-current device connects the power supply input of said semiconductor cooling device; The step-down of described solar panel output electric energy, voltage stabilizing, constant-current device comprise solar energy step-down, Voltage stabilizing module, constant flow module; The input of this solar energy step-down, Voltage stabilizing module connects the electric energy output end of solar panel, and the output of this constant flow module connects the power supply input of said semiconductor cooling device; Said solar semiconductor refrigerator also comprises civil power switch control unit, mains-supplied processing module; The step-down of described solar panel output electric energy, voltage stabilizing, constant-current device also comprise current sampling module; The input of this current sampling module connects the output of this solar energy step-down, Voltage stabilizing module; First output of this current sampling module connects the input of said constant flow module; Second output of this current sampling module connects the control signal input of this civil power switch control unit; The mains-supplied input of this civil power switch control unit is used to be connected in mains supply, and the output of this civil power switch control unit connects the input of said mains-supplied processing module, and the output of mains-supplied processing module connects the power supply input of semiconductor cooling device.
2. solar semiconductor refrigerator as claimed in claim 1; It is characterized in that: described solar energy step-down, Voltage stabilizing module comprise a step-down current stabilization chip; The input of this step-down current stabilization chip connects the output of said solar panel, and the output of this step-down current stabilization chip is used to connect the input of said current sampling module.
3. solar semiconductor refrigerator as claimed in claim 2; It is characterized in that: described current sampling module comprises sample resistance; One end of this sample resistance is used to connect the output of said step-down current stabilization chip, and the other end of this sample resistance is used to connect the input of said constant flow module; Described civil power switch control unit comprises a switch triode, relay; Corresponding respectively two links that are connected said sample resistance of the base stage of this switch triode, emitter stage; The colelctor electrode of this switch triode is used to connect the coil of said relay, and the normally closed contact of this relay is serially connected on the connection line between the input of mains supply and said mains-supplied processing module.
4. like claim 2 or 3 described solar semiconductor refrigerators, it is characterized in that: the model that described step-down current stabilization chip adopts is MP8666.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910064913 CN101886866B (en) | 2009-05-14 | 2009-05-14 | Solar semiconductor refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910064913 CN101886866B (en) | 2009-05-14 | 2009-05-14 | Solar semiconductor refrigerator |
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| Publication Number | Publication Date |
|---|---|
| CN101886866A CN101886866A (en) | 2010-11-17 |
| CN101886866B true CN101886866B (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910064913 Expired - Fee Related CN101886866B (en) | 2009-05-14 | 2009-05-14 | Solar semiconductor refrigerator |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567272A (en) * | 2015-01-29 | 2015-04-29 | 广州菲利斯太阳能科技有限公司 | Solar refrigerator |
| CN104896789B (en) * | 2015-06-09 | 2018-05-11 | 长沙麦融高科股份有限公司 | A kind of autonomous type semiconductor refrigerating cabinet and its control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2505782Y (en) * | 2001-04-30 | 2002-08-14 | 上海交通大学 | Solar semiconductor refrigerator |
| CN2932244Y (en) * | 2006-06-21 | 2007-08-08 | 南京师范大学 | Cold-storage solar semiconductor refrigerator |
| CN201096437Y (en) * | 2007-10-19 | 2008-08-06 | 天津三星电子有限公司 | Portable freezing box |
-
2009
- 2009-05-14 CN CN 200910064913 patent/CN101886866B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2505782Y (en) * | 2001-04-30 | 2002-08-14 | 上海交通大学 | Solar semiconductor refrigerator |
| CN2932244Y (en) * | 2006-06-21 | 2007-08-08 | 南京师范大学 | Cold-storage solar semiconductor refrigerator |
| CN201096437Y (en) * | 2007-10-19 | 2008-08-06 | 天津三星电子有限公司 | Portable freezing box |
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| Publication number | Publication date |
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| CN101886866A (en) | 2010-11-17 |
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Granted publication date: 20121219 Termination date: 20140514 |