CN1138954C - Solar-powdered refrigerator - Google Patents
Solar-powdered refrigerator Download PDFInfo
- Publication number
- CN1138954C CN1138954C CNB998069434A CN99806943A CN1138954C CN 1138954 C CN1138954 C CN 1138954C CN B998069434 A CNB998069434 A CN B998069434A CN 99806943 A CN99806943 A CN 99806943A CN 1138954 C CN1138954 C CN 1138954C
- Authority
- CN
- China
- Prior art keywords
- compressor
- coolant channel
- solar energy
- refrigerator according
- energy refrigerator
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/66—Regulating electric power
- G05F1/67—Regulating electric power to the maximum power available from a generator, e.g. from solar cell
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/06—Several compression cycles arranged in parallel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
-
- 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
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
A solar-powered refrigerator (10) which includes a switch (13) operable to independently regulate supply of an electric current to one or more variable-speed compressors (15), each of the variable-speed compressors (15) being in fluid communication with a respective coolant circuit (17) in thermal communication with the interior of a cooling chamber (23).
Description
Technical field
The present invention relates to a kind of solar energy refrigerator, it especially is fit to but is not limited to be used for remote districts.
Background technology
For those thermally sensitive article, for example storage of suchlike things such as food, beverage, medicine, medicament and vaccine, refrigerator just becomes indispensable equipment.
Here Ding Yi " refrigerator " comprises the congealer that can be cooled to below 4 ℃, and/or can be cooled to-20 ℃ or following household freezer.
In brief, refrigerator comprises a compressor, and this compressor and a coolant channel (comprising cooling medium, such as R134a) fluid is communicated with, and heat interchange is carried out in the inside of this coolant channel and cooling chamber, is storing in this cooling chamber will cool off or freezing article).
The principle of this course of work is the compressor compresses cooling medium, and to make it mobile by the coolant channel on the wall that is positioned at cooling chamber, this cooling medium absorbs cooling chamber and reaches the wherein heat of article, thereby cooling chamber and article wherein are cooled with freezing.
Then, the cooling medium of expansion is compressed once more and is flowed in coolant channel.Usually, in cooling chamber, need a temperature control equipment, keep a predetermined temperature to assist it.
Typical freezer compressor is provided with an induction motor, and it is with constant speed running and constant energy is provided, and from the energy consumption angle, does some waste relatively like this.
Recently, variable speed compressor comes out, and it can changed speed operation, thereby variable energy consumption can be provided, thereby has improved efficiency.Can see that variable speed compressor has been obtained rapidly development in recent years, such as can be with reference to International Application No. WO 98/15790, Jap.P. No.10038439, Jap.P. No.9196535 and U.S. Patent No. 5711159.Especially it should be noted that TLV AC compressor and BD35F and BD50F direct current compressor that Danfoss A/S produces.
Although in many cases, refrigerator is to rely on alternating electromotive force work, more and more with the substitute energy of sun power as refrigerator.Usually, utilize solar panels to collect the solar radiation of incident and change it into power storage in battery.When incident solar radiation hour, such as at night, dawn or at dusk, the or during cloudy day, battery just can provide energy to freezer compressor.
The weak point of this system is that typical freezer compressor requires a threshold current, this threshold current to be generally 5 amperes when operation.Therefore, refrigerator only could be worked when reaching threshold current.
The another one weak point of this system is that the current regulator between solar panels and the battery is unreliable.In case damage, battery or can not charge, or will be damaged by input current out of control.
In addition, existing solar energy refrigerator also can not transport usually easily.Generally utilizing solar energy refrigerator storage medicine and vaccine in case rotten remote districts, this is distinct issues.For example, vaccine often need be transported to the surrounding area from central storage location by the lymph receptacle that send the part people carrying to be provided with ice cube.Therefore, must lay in and supply with these ice cubes in advance.
Yet under the condition of low-light (level), the solar energy refrigerator that is used for this purpose can not be worked owing to the requirement of threshold current, and this makes and guarantees very difficulty of this supply.Though under this condition, battery can provide power, any parts of solar energy refrigerator all have only of short duration service time.Therefore, they trend towards constituting the most weak " contact " in system.In addition, battery may be stolen or not be worked, thereby need change.The renewal cost of great number and the scarcity of solar energy charging battery are stubborn problems in remote poor mountain village.
Purpose of the present invention
Therefore, one object of the present invention is to provide a kind of solar energy refrigerator, and it can utilize the variable supply of the electric energy that is produced by sun power.
Another object of the present invention is a kind of solar energy refrigerator that does not need battery of structure.
A preferred purpose of the present invention provides and a kind ofly reduces that chilled goods is melted or the solar energy refrigerator of the possibility damaged.
Some preferred embodiments will embody in the following description.
General introduction of the present invention
In a broad sense, solar energy refrigerator of the present invention comprises:
(i) two or more variable speed compressors, they and one or more coolant channel fluid
Be communicated with, this coolant channel can be carried out heat interchange with the inside of a cooling chamber; And
(ii) converter;
In use, described converter detects the electric current of compressor motor, adjusting the current supply of described two or more variable speed compressors, thereby makes each compressor according to the maximum (top) speed work of the electric current of being supplied with reaching.
Those skilled in the art will appreciate that solar panels are used as the energy source of solar energy refrigerator.
Preferably, be at least two solar panels of each variable speed compressor setting.Yet, it is contemplated that, along with the development of solar panel technology in future, only be required to be each variable speed compressor and be equipped with the electric power output that solar panels just can provide abundance.
Can see that above the variable speed compressor technology of Miao Shuing develops rapidly, such as Danfoss A/S, Panasonic and General Electric Co. Limited have all produced many such compressors, and some in them go for the present invention at least.Preferably, described variable speed compressor is BD35F or the BD50F direct current compressor by the Danfoss A/S production of Denmark.
More preferably, described variable speed compressor is the BD50F direct current compressor.
The range of speeds of described BD35F and BD50F variable speed compressor is 2000rpm-3500rpm.
Preferably, comprise in the solar energy refrigerator and be no more than three compressor.Can imagine that in case the compressor of needs more than three, then a generator is more suitable than a solar energy.
Advantageously, include two or three compressors in the solar energy refrigerator.
Suitable is that this converter detects the electric current of compressor motor.Preferably, this converter adds the rotating speed that reference signal (5 volts, rectangle) is regulated compressor by changing one, and compressor can be according to the speed running of the electric current that is provided with maximum like this.In application, for realizing this function, this converter can respond any fluctuation of compressor motor electric current and change and add reference signal.
Preferably, this converter can change and adds reference signal, to change the rotating speed of compressor between 2000rpm～3500rpm.
Perhaps, this converter can be regulated the current supply of described compressor by changing resistance.
Preferably, comprise a pipeline in the coolant channel, wherein be provided with cooling medium, preferably, this cooling medium is R600a or R134a cooling medium.
In a preferred form, this solar energy refrigerator comprises a converter, it is regulated two variable speed compressors, wherein, one first compressor is communicated with one first coolant channel fluid, one second compressor is communicated with one second coolant channel fluid, and the coldplate and/or the district of each coolant channel and cooling chamber inside carry out heat interchange.
According to this form and following another form that will narrate, cooling chamber preferably cubic or box-like, its inside is limited by periphery wall, and is divided into the external refrigeration district by the external refrigeration plate, and is divided into inner cooling zone by inner coldplate.
Preferably, first coolant channel and external refrigeration plate and/or district carry out heat interchange, and second coolant channel and inner coldplate and/or district carry out heat interchange.This specific layout makes the different units of each coolant channel and cooling chamber inside carry out heat interchange.
In another form, this solar energy refrigerator comprises a converter, and it regulates three variable speed compressors.Wherein, one first compressor is communicated with one first coolant channel fluid, one second compressor is communicated with one second coolant channel fluid, one the 3rd compressor is communicated with one the 3rd coolant channel fluid, and the coldplate and/or the district of each coolant channel and cooling chamber inside carry out heat interchange.
Preferably, first coolant channel and the external refrigeration plate/district carries out heat interchange, and the second and the 3rd coolant channel and inner coldplate/district carry out heat interchange.
Those skilled in the art will appreciate that by converter and regulate supplying electric current independently, can realize the independent operation of compressor.
The range of current that is provided when equally, being appreciated that each variable speed compressor operation also is variable.At first, can change according to the temperature of cooling medium, it is subjected to environment temperature and chilled goods Temperature Influence conversely again.Under preferred condition, after chilled goods is cooled, only need relative less current just can make compressor operating.For example, in this case, first compressor and first coolant channel are worked under 2～3 amperes low supplying electric current, and second compressor and second coolant channel are worked under 6～7 amperes higher supplying electric current.In this case, first compressor can reach the rotating speed of 3500rpm at about 6～7 ampere-hours, and when the rotating speed of first compressor dropped to 2000rpm, second compressor was also started working under the rotating speed of 2000rpm.Along with working current increases to about 9 ampere-hours, the rotating speed of two compressors all reaches 3500rpm.When also having one the 3rd compressor to exist, along with working current surpasses 9～10 amperes, three compressors are all started working under the rotating speed of 2000rpm, and along with the increase of working current, rotating speed will increase to 3500rpm.
Another factor that influences compressor operating is the performance of compressor itself.For example, BD50F needs higher capacity and electric current than BD35F.
Brief description of drawings
Fig. 1: the plan view of solar energy refrigerator;
Fig. 2: the plan view of cooling chamber;
Fig. 3: the layout of solar panels, variable speed compressor and converter;
Fig. 4: the synoptic diagram that can power and concern between stream and the compressor rotary speed.
Detailed description of preferred embodiment
The solar energy refrigerator 10 that Fig. 1 shows can be used for remote districts, is used for the ice cube of vaccine transportation with production.
Specific arrangements shown in Fig. 1 comprises four solar panels 12 and two variable speed compressor 15A and 15B.
Four solar panels 12 (every block of electric current that can produce up to 4.5 amperes) link to each other with refrigerator 10 with circuit 14 by converter 13.
During use, converter 13 is regulated the first variable speed compressor 15A and the second variable speed compressor 15B by circuit 16A and 16B respectively, and like this, described compressor can be worked independently of each other.Each circuit 16A and 16B include compressor power circuit and temperature regulation circuit.The reference signal that adds in the temperature regulation circuit is regulated by converter 13.
Can see that from Fig. 1 and Fig. 2 coolant channel 17A and 17B are driven by compressor 15A and 15B respectively.Each coolant channel all has a condenser (not shown), and it is the exemplary device of coolant channel.Heat interchange is carried out in external refrigeration plate 18 in the inside 22 of path 17A and cooling chamber 23 and cooling zone 20.Heat interchange is carried out in path 17B and inner coldplate 19 and cooling zone 21. Path 17A and 17B extend to the periphery wall 24 of cooling chamber 23.
In Fig. 1 and Fig. 2, shown flow of coolant direction among path 17A and the 17B with arrow.
In the course of the work, converter 13 is when detecting the compressor motor electric current, and change adds reference signal regularly, thereby allows compressor 15A and 15B under the given supply of current that solar panels 12 produce, and reaches the highest rotating speed.
With reference to Fig. 3, it describes the situation of three variable speed compressor 15A, 15B and 15C independent operation under the effect of converter 13 in detail.Be appreciated that its principle of work also is applicable to the situation of two variable speed compressors.Refer again to Fig. 3, six solar panels 12 A～F provide the electric power that is produced by sun power to compressor 15A, 15B and 15C under the control of microprocessor control transformation device 13.Be provided with Hall effect transducer 26A among the circuit 16A, be provided with Hall effect transducer 26B among the circuit 16B, be provided with Hall effect transducer 26C among the circuit 16C." always " Hall effect transducer 30 is used for detecting the total current of compressor.Temperature control equipment terminal 28 links to each other with a pulse producer in the converter 13 with 29.
Microprocessor control transformation device 13 preferably has the memory size of 8KB, and comprises the software of suitable control algolithm.Be appreciated that in some cases, need bigger memory size.Converter 13 detects compressor current by Hall effect transducer 26A～C and 30, and correspondingly change adds reference signal.Add reference signal by paired terminal 28 and 29 control compressor rotary speeds.
When microprocessor 13 detects the output voltage of solar panels, when being preferably 18V, its produces the reference signal that adds of certain frequency, so that compressor 15A starts working.Then, converter 13 is by the electric current of Hall effect transducer 26A repeated measurement compressor 15.By more continuous current measurement value, converter 13 judges whether the output of solar panels 12A～F increases, if the rotating speed with regard to corresponding lifting compressor 15A reaches maximum (top) speed until it.The same permission of this mode of operation reduces compressor rotary speed when solar panels output reduces.It should be noted that aforesaid 18V output can change accordingly according to used solar panels, and environment temperature on every side also can influence the performance of solar panels.
When compressor 15A reached maximum (top) speed, converter 13 just changed the frequency that adds reference signal, so that compressor 15A and 15B are with minimum speed work.Converter 13 comes the standby current size by Hall effect transducer 26A and 26B respectively and controls the rotating speed of compressor 15A and 15B.
When compressor 15A and 15B reached maximum (top) speed, converter 13 changed the frequency that adds reference signal, so that compressor 15A, 15B and 15C are with minimum speed work.Converter 13 is respectively by Hall effect transducer 26A, 26B, and 26C and 30 comes the standby current size and controls the rotating speed of compressor 15A～C.
Be higher than the required frequency of compressor maximum speed if add reference signal frequency, if and detect total current by Hall effect transducer 30 and keep a period of time not become, such as 15 minutes, converter 13 adds the frequency of reference signal with change so, gets back to the frequency of compressor minimum speed correspondence.The come to this control that is subjected to converter 13 of the rotating speed of compressor.More efficientlyly be, automatic " resetting " circuit by software control be provided for converter 13, can guarantee that so just compressor rotary speed and electric current accurately mate.
Fig. 4 has illustrated the situation that solar energy refrigerator is worked under relatively low electric current demand.At first, when the electric current of solar panels reaches 2～3 ampere-hours, the first compressor 15A begins the rotation speed operation with 2000rpm.Electric current when being appreciated that the compressor starts running improves according to the temperature of cooling medium, and the temperature of this cooling medium is subjected to ambient temperature and the chilled goods Temperature Influence such as refrigeration piece 25 conversely again.In this stage, converter 13 keeps the required reference signal that adds, to guarantee the rotary speed working of compressor 15A with 2000rpm.
The increase of the electric current that produces along with solar panels 12, the first compressor 15A improves its rotating speed, thereby can reach its maximum (top) speed 3500rpm, and around here, converter 13 provides a suitable reference signal that adds.
When electric current reached 7 amperes of left and right sides, second compressor starts was with the rotation speed operation of 2000rpm, and simultaneously, the rotating speed of compressor 15A correspondingly drops to 2000rpm.Along with the increase of working current, converter 13 keeps the suitable external reference signal, approximately reaches 12 ampere-hours at electric current like this, and the rotating speed of compressor 15A and 15B all rises to 3500rpm.
From Fig. 2, can find the first compressor 15A preferential cooling outer coldplate 18, outer cooling zone 20 and be contained in wherein ice cube 25A at an easy rate.When second compressor starts was worked, interior coldplate 19, interior cooling zone 21 and the ice cube 25B that is contained in wherein were cooled.
This layout is used at first cooling off the chilled goods (is ice cube 25 at this example) that is arranged in outer cooling zone 20, thereby because when refrigerator can not be worked under the situation that does not have illumination or minimal illumination, their most possible parts are melted.When second compressor is worked under high current, promptly for example receive under the situation of enough incident radiations at solar panels 12, the article in the inner cooling zone 21 are cooled.
Therefore, solar energy refrigerator provided by the invention can have the adaptability of height according to refrigeration capacity and power requirement, thereby applicable to various refrigeration demand.
Be appreciated that solar energy refrigerator described herein can not have battery and works under the condition of relative low-light (level) (for example, have only in some cases 25% full sun).Furthermore, solar energy refrigerator of the present invention has reduced the possibility that chilled goods melts and goes bad.The another one advantage of this solar energy refrigerator is to be convenient to transportation, is suitable for the solar energy source in various places, and can be transported together with the solar panels of itself.
Be appreciated that the present invention disclosed herein is not limited to the particular combinations of feature described in the described preferred embodiment, can design various embodiment on its basis, these do not depart from the scope of the present invention.
Claims (15)
1. solar energy refrigerator, it comprises:
(i) two or more variable speed compressors, they and one or more coolant channel fluid
Be communicated with, this coolant channel can be carried out heat interchange with the inside of a cooling chamber; And
(ii) converter;
In use, described converter detects the electric current of compressor motor, adjusting the current supply of described two or more variable speed compressors, thereby makes each compressor according to the maximum (top) speed work of the electric current of being supplied with reaching.
2. solar energy refrigerator according to claim 1 is characterized in that, coldplate and/or district in described coolant channel and the cooling chamber carry out heat interchange.
3. solar energy refrigerator according to claim 2 is characterized in that cooling chamber inside is limited by periphery wall, and is separated into the external refrigeration district by the external refrigeration plate, and is separated into inner cooling zone by inner coldplate.
4. solar energy refrigerator according to claim 3, it is characterized in that, described variable speed compressor is communicated with separately coolant channel fluid, a coolant channel and described external refrigeration plate and/or district carry out heat interchange, and another coolant channel and described inner coldplate and/or district carry out heat interchange.
5. solar energy refrigerator according to claim 1 is characterized in that, it comprises two variable speed compressors.
6. solar energy refrigerator according to claim 5 is characterized in that, described variable speed compressor is worked independently according to each compressor current supply separately.
7. solar energy refrigerator according to claim 5 is characterized in that, one first compressor is started working under a lower electric current, and one second compressor is started working under a higher electric current.
8. solar energy refrigerator according to claim 7, it is characterized in that, described first compressor is communicated with one first coolant channel fluid, described second compressor is communicated with one second coolant channel fluid, and the coldplate and/or the district of each coolant channel and cooling chamber inside carry out heat interchange.
9. solar energy refrigerator according to claim 8 is characterized in that, first coolant channel and external refrigeration plate and/or district carry out heat interchange, and second coolant channel and inner coldplate and/or district carry out heat interchange.
10. solar energy refrigerator according to claim 1 is characterized in that, it comprises three variable speed compressors.
11. solar energy refrigerator according to claim 10, it is characterized in that, one first compressor is started working under a lower electric current, and one second compressor is started working under a higher electric current, and one the 3rd compressor is started working under a higher electric current.
12. solar energy refrigerator according to claim 11, it is characterized in that, first compressor is communicated with one first coolant channel fluid, second compressor is communicated with one second coolant channel fluid, the 3rd compressor is communicated with one the 3rd coolant channel fluid, and coldplate and/or district in each coolant channel and the cooling chamber carry out heat interchange.
13. solar energy refrigerator according to claim 12 is characterized in that, first coolant channel and external refrigeration plate and/or district carry out heat interchange, and the second and the 3rd coolant channel and inner coldplate and/or district carry out heat interchange.
14. any one the described solar energy refrigerator according in the claim 1,5 or 10 is characterized in that, each variable speed compressor is equipped with at least one solar panels.
15. solar energy refrigerator according to claim 14 is characterized in that, each compressor is equipped with two solar panels.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPP3828 | 1998-06-02 | ||
| AUPP3828A AUPP382898A0 (en) | 1998-06-02 | 1998-06-02 | Solar-powered refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1304502A CN1304502A (en) | 2001-07-18 |
| CN1138954C true CN1138954C (en) | 2004-02-18 |
Family
ID=3808075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB998069434A Expired - Fee Related CN1138954C (en) | 1998-06-02 | 1999-05-27 | Solar-powdered refrigerator |
Country Status (6)
| Country | Link |
|---|---|
| CN (1) | CN1138954C (en) |
| AU (1) | AUPP382898A0 (en) |
| BR (1) | BR9910937A (en) |
| ID (1) | ID28794A (en) |
| WO (1) | WO1999063415A1 (en) |
| ZA (1) | ZA200006853B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6624350B2 (en) * | 2001-01-18 | 2003-09-23 | Arise Technologies Corporation | Solar power management system |
| DE102009051999A1 (en) * | 2009-11-05 | 2011-05-12 | Siemens Aktiengesellschaft | Method and arrangement for monitoring a photovoltaic module |
| CN106766491A (en) * | 2017-01-04 | 2017-05-31 | 广东五星太阳能股份有限公司 | Compressor rotary speed directly drives refrigerator system with the no storage battery Portable photovoltaic that irradiation changes |
| DE202018106306U1 (en) | 2018-11-06 | 2018-11-13 | Va-Q-Tec Ag | Temperable container with vacuum insulation elements |
| CN110579050A (en) * | 2019-08-23 | 2019-12-17 | 河海大学常州校区 | Dual-purpose portable ice machine of household electrical appliances alternating current, photovoltaic direct current |
| WO2022189486A1 (en) * | 2021-03-09 | 2022-09-15 | Lowenco A/S | A cold storage, a method of operating a cold storage, and a cooling system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4143243A1 (en) * | 1991-12-31 | 1993-07-01 | Emmerich Tetkov | Domestic cold cell for storage of provisions - has freezer compartment and cold compartment separated by insulated wall, with air lock access door and solar powered cooling circuit also provided |
| DE19627096A1 (en) * | 1996-07-05 | 1998-01-15 | Get Mbh | Cooling apparatus powered by solar generator for refrigerator |
-
1998
- 1998-06-02 AU AUPP3828A patent/AUPP382898A0/en not_active Abandoned
-
1999
- 1999-05-27 WO PCT/AU1999/000406 patent/WO1999063415A1/en active Application Filing
- 1999-05-27 ID IDW20002552A patent/ID28794A/en unknown
- 1999-05-27 CN CNB998069434A patent/CN1138954C/en not_active Expired - Fee Related
- 1999-05-27 BR BR9910937-9A patent/BR9910937A/en not_active IP Right Cessation
-
2000
- 2000-11-22 ZA ZA200006853A patent/ZA200006853B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AUPP382898A0 (en) | 1998-06-25 |
| WO1999063415A1 (en) | 1999-12-09 |
| BR9910937A (en) | 2001-03-06 |
| ID28794A (en) | 2001-07-05 |
| CN1304502A (en) | 2001-07-18 |
| ZA200006853B (en) | 2002-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1156664C (en) | Refrigerator | |
| CN1149373C (en) | Refrigerator | |
| CN1114800C (en) | Controlling apparatus for various air conditioners | |
| CN1112561C (en) | Method of controlling fan motor and refrigerator employing the same | |
| CN1081244A (en) | The control method of air conditioner | |
| CN1138954C (en) | Solar-powdered refrigerator | |
| CN1086792C (en) | Air conditioner | |
| CN1204753A (en) | Air conditioner automatically controlling operation based on supply voltage or supply frequency | |
| CN1840987A (en) | Refrigerated device and refrigerator | |
| US9657973B2 (en) | Refrigeration system with photovoltaic power source | |
| CN102738889A (en) | Cooling apparatus and control method | |
| CN1083091C (en) | Air conditioner | |
| US6240737B1 (en) | Solar-powered refrigerator | |
| CN102269173A (en) | Control device and method of direct current fan for refrigerator | |
| KR101186467B1 (en) | Power control apparatus of vehicle for transporting frozen, refrigerated and warmed foods and method thereof | |
| CN1224808C (en) | Air conditioning unit and method of operating same | |
| CN1205738C (en) | Multi-stage driving type ompression pump driving system for air conditioning and refrigerating | |
| CN2500997Y (en) | Electricity-saving refrigerator, air conditioner | |
| JP2004286363A (en) | Refrigerator car | |
| CN1940407A (en) | Freezing system | |
| JPH06135222A (en) | Power source device of on-vehicle cooling device | |
| CN107839571B (en) | Energy-saving vehicle-mounted refrigerator and using method thereof | |
| JPH10311642A (en) | Refrigerator | |
| EP1728317B1 (en) | A cooling device | |
| CN1773192A (en) | Indoor solar DC cold-storing refrigerating apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Queensland, Australia Applicant after: M.E. Albiez Address before: Queensland, Australia Applicant before: Bobert Charles Albiez Co-applicant before: M.E. Albiez |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: BOBERT CHARLES ALBIEZ TO: JOANNA AI NICHOLS; CO-APPLICANT |
|
| 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 |