CN101884244B - For the thermoelectric device of defog and defrost application - Google Patents
For the thermoelectric device of defog and defrost application Download PDFInfo
- Publication number
- CN101884244B CN101884244B CN200780101842.4A CN200780101842A CN101884244B CN 101884244 B CN101884244 B CN 101884244B CN 200780101842 A CN200780101842 A CN 200780101842A CN 101884244 B CN101884244 B CN 101884244B
- Authority
- CN
- China
- Prior art keywords
- thermoelectric device
- air
- refrigerated enclosure
- described thermoelectric
- methods
- 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
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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/04—Preventing the formation of frost or condensate
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
-
- 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
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
Abstract
The invention provides a kind of controlled surface, it directly contacts with the cooling-air stream in climate-controlled space inner loop.Thermoelectric device is associated with controlled surface and has thermojunction and cold junction, and described thermojunction is placed on the upstream in the air flow path of controlled surface upper direction, and described cold junction is placed on the downstream in this air flow path.While the temperature of this set in not obvious change climate-controlled space, for controlled surface provides demist, defrosting or condensate evaporative, and by thermoelectric device from air-flow removing at least some amount of moisture.
Description
[technical field]
The application relates to a kind of purposes of thermoelectric (al) cooler, this thermoelectric (al) cooler is used for providing demist or defrosting to the cold surface be associated with climate-controlled space (climate-controlledspace), and does not affect the situation in climate-controlled space significantly simultaneously.
[background technology]
Various locking device and casing structure comprise multiple surface, and these surfaces can be transparent or reflection, and typically need during air conditioning or refrigeration plant operation, to maintain this transparent or reflection function during whole working life, especially.For example, in general store, displaying articles in cold storage container of being everlasting.In cold storage container, glass door typically the refrigerating space closed is sealed and and external environment condition separate, and the contents of simultaneously allowing in cold storage container can be demonstrated and close.Cooling-air circulates in the climate-controlled space of cold storage container.Door on a surface in the face of hotter and typically moister external environment condition, and at it another on the surface in the face of cold air or the cooling air of locking device.In fact, often along the inner surface conveying air curtain of door, in during such as when door is opened, extraneous air is stoped to enter.Although the glass door of cold storage container is by typically well heat insulation, door frequently open and product respiration in cold storage container can cause glass door to haze, this does not wish very much to occur.
Other the various cold surface that is transparent or that reflect be associated with climate-controlled space also may can meet with Similar Problems.Such as, at static facilities such as such as bottle cooler, Vending Machine, shelf (merchandiser), bathrooms, and window in such as commercial affairs and the MOVING STRUCTURE such as private car, movable ice locker or mirror part also may become and haze.Similarly, some in the surface of these types can be exposed and frosting.
What recently proposed selects to be use thermoelectric (al) cooler for the one be incorporated in refrigerating system.Thermoelectric (al) cooler is the particular thermal electrical property that make use of different semi-conducting material in essence, and based on simultaneous two phenomenon-peltier effects (Peltiereffect) and Seebeck effect (Seebackeffect) during thermoelectric device operation.Peltier effect, with when electric current exists, is being made up of different materials and is keeping the release of knot (junction) the limited hot-fluid of at a constant temperature two electric conductors or absorption to be associated.Similarly, Seebeck effect and identical configuration are correlated with, and wherein two knots are maintained at different temperatures, this can produce limited electrical potential difference and can in closed loop circuit the electromotive force of drive current.
Peltier effect and Seebeck effect exist in the thermoelectric (al) cooler preferably made by the material with different absolute temperature difference electromotive force simultaneously.Cause two heat trnasfer by the finite electric current of two knots to interact, because two freezers and heat reservoir remain on different temperatures.In order to the operation of stable thermoelectric (al) cooler, contrary mark should be had with the hot-fluid that two knots are associated.If external system maintains electrical potential difference and drive the electric current of offsetting this electrical potential difference, then two clone systems are turned into thermo-electric cooling device.
Typical thermoelectric (al) cooler is made up of the P type semiconductor element and N type semiconductor element arrays serving as two different conductors.P-type material has the electronics of lazy weight, and n type material has extra electronics.In these electronics in n type material and P-type material so-called " hole ", except loaded current, be also turned into conveying medium so that heat is transferred to thermojunction from cold junction.Rate of heat delivery is determined by the quantity of the electric current of circuit and the electron-hole pair of motion.When electric current is by one or more pairs of P-N element, occurs that temperature reduces at cold junction place, cause the heat from target to be cooled to be absorbed.When electronics shifts to lower state from upper state, heat carried by thermoelectric (al) cooler by electronics transport and discharges at thermojunction place.
Although thermoelectric device itself is irreversible, because heat and electric current must flow through circuit during their operations, therefore thermoelectric device does not make its extremely reliable and quiet moving component.
Thermoelectric device is not applied to providing demist to the cold surface be associated with climate-controlled space or defrosting to solve the above problems, and the simultaneously not obvious situation affected in climate-controlled space.
[summary of the invention]
In open execution mode of the present invention, provide a kind of controlled surface, it directly contacts with the cold air stream carrying out circulating in climate-controlled space inside.Cooling-air stream is supplied to climate-controlled space by air conditioning or refrigeration plant.Thermoelectric device is associated with controlled surface, and keeps controlled surface not form fog, frost or condensate.Controlled surface can be permanently transparent or reflection, and these performances of maintenance can not be hazed or frost during air conditioning or refrigeration plant operation.On the other hand, controlled surface can be made up of the conventional construction material of such as aluminium, steel or plastics, and will not allow that formation to cause in climate-controlled space occurring in undesirably position any condensate of dropping liquid and wet spot (wetspot).
The thermoelectric device be associated with controlled surface is positioned at climate-controlled space inside, and the thermojunction of thermoelectric device is placed in air flow path, and thermoelectric device provides demist, defrosting or condensate evaporative for controlled surface.The cold junction of thermoelectric device can be placed on the downstream of thermojunction on air flow path, to reduce air themperature and at least some amount of moisture eliminated in air-flow towards the initial value of air-flow.This condensate be collected on cold junction is directed into discharge plate, and from climate-controlled space removing, controlled surface is by demist, defrosting or drying simultaneously.This demist or defrost function are provided by thermoelectric device, and do not interrupt cooling down operation pattern.
Thermoelectric device can be operated continuously, or such as can activate thermoelectric device based on timing device or sensor feedback as required.This transducer is normally known in the industry, and can be Cold Mirrors type, capacitor type, resistor-type or other any type.In addition, thermoelectric device can provide variable power supply, and therefore can such as by changing supply voltage, adds heat and amount of cooling water is delivered to the air-flow passed through respectively, to adjust the environmental aspect that thermoelectric device operation carrys out Adaptive change by thermojunction and cold junction by various.
Thermoelectric device and knot thereof can be incorporated in controlled surface structure, or can be used as attachment device and apply.
If be reversed for the electric power polarity of thermoelectric device, then thermojunction and cold junction exchanged.This successively (inturn) allow additional cooling be provided, it is supplied to the controlled surface be associated by the cold junction of thermoelectric device.
The present invention can be applicable to any controlled surface that is transparent or reflection, such as glass door, window or mirror part, or the controlled surface being placed on other any general object in climate controlled environment.Can understand these and further feature of the present invention from following detailed description and accompanying drawing best, be below describe in detail and brief description of the drawings.
[accompanying drawing explanation]
Fig. 1 schematically shows and combines refrigerated enclosure device (refrigeratedenclosure) of the present invention.
Fig. 2 is the zoomed-in view of a part for the refrigerated enclosure device of Fig. 1.
Fig. 3 shows the general expression (representation) combining controlled surface of the present invention.
[embodiment]
Fig. 1 shows the refrigerated enclosure device 20 combining glass door 22, and glass door 22 is allowed and led to chilled products and provide the transparent functional for observing the contents in refrigerated enclosure device 20 for user.Refrigerated enclosure device 20 can comprise various structure element, such as shelf 24 etc.Cooling-air in the climate-controlled space inner loop of refrigerated enclosure device 20, to provide cooling to the product that can be positioned over refrigerated enclosure device 20 inside.In addition, provide air curtain along glass door 22, stop extraneous air to enter and cooling-air is selected in surrounding environment to open period at door.
Air is transported to the refrigerating system heated type heat exchanger of such as evaporator 30 by return air duct 18 from the climate-controlled space of refrigerated enclosure device 20.Then, air to be refluxed in the climate-controlled space of refrigerated enclosure device 20 by ventilating opening 36 and 37 by return air duct 32.Ventilating opening 37 is located usually provides air curtain 26.Evaporator 30 is incorporated in refrigerating system, refrigerating system at least comprises the basic element of character, such as heat rejection type heat exchanger, compressor, expansion gear and a pair air push (air-moving) device be associated with heat rejection type heat exchanger and evaporator 30.Refrigerating system can be the global facility be made up of refrigerated enclosure device 20, or can be made up of slide-in type (slide-in).The air movement device of such as fan 28 is associated with evaporator 30 and is typically placed evaporator 30 downstream, and air movement device is by by being cooled during evaporator 30 and often the cooling blast of dehumidifying being supplied to the climate-controlled space of refrigerated enclosure device 20.
Therefore, air curtain 26 typically has identical chilling temperature with the air in refrigerated enclosure device 20 inner loop.Glass door 22 has the inner surface that its outer surface being exposed to surrounding environment 100 contacts with air curtain 26 with it.Typically, air curtain 26 has the temperature more much lower than surrounding environment 100 and water capacity.Therefore, glass door 22 such as can be opened period at door and become and haze typically.Glass door 22 also can haze because of the respiration and becoming being placed on the product of refrigerated enclosure device 20 inside.
The thermoelectric device 44 be associated with glass door 22 and air curtain 26 is placed in the climate-controlled space of refrigerated enclosure device 20 by the present invention, the thermojunction 38 of such as thermoelectric device 44 be arranged in air leave ventilating opening 37 path and before it flows to above glass door 22.Because the heat trnasfer left between the air curtain air-flow of ventilating opening 37 and the thermojunction 38 of thermoelectric device 44 interacts, therefore, air curtain 26 is by higher than the temperature of the remaining air in refrigerated enclosure device 20 inner loop.So can absorbing compared with warm air of air curtain 26 accumulates on glass door 22 inner surface in the moisture of fog, condensate or frost form.As a result, as desired, the transparent functional of glass door 22 will keep.
The cold junction 40 of thermoelectric device 44 is disposed adjacent the end of the air path of air curtain 26, and when air return is to flow through evaporator 30, thermoelectric device 44 will be used for towards initial temperature cooling-air and to air dewetting.The condensate removed from air-flow by the cold junction 40 of thermoelectric device 44 is collected in discharge plate 45, and then removes from refrigerated enclosure device 20.
Show in detail the air-flow of air curtain 26 process on thermojunction 38 in fig. 2.It is noted that the thermojunction 38 of thermoelectric device 44 and cold junction 40 only schematically show, and must can have any shape or structure.Such as, in order to strengthen heat trnasfer, thermojunction 38 and cold junction 40 can have the secondary heat transfer surface of the extension of gas channel, such as heat transfer fin or the flank being provided with any suitable cross-section and the heat transfer enhancement elements of such as air vent hole (louver) or boundary layer breach (boundarylayerdisruptor).Generally speaking, these heat transfer enhancement elements are known in this area.And cold junction 40 can be combined with the condensate drain of grooving or paddy (valley) form, condensate drain can be avoided air-flow and be pulled away to prevent condensate.Such as, and the such as thermojunction 38 of thermoelectric device 44 and the element of cold junction 40 can be attached in the structure of glass door 22, or even accessible site, on door, is integrated on door with the form of the laminated construction being positioned at glass door 22 inner surface or neighbouring location.
It should be understood that thermoelectric device 44 under the cooling down operation mode situation not interrupting the refrigeration unit be associated with refrigerated enclosure device 20, can provide demist or defrost function.In addition, thermoelectric device 44 operates serially or (such as based on timing device or sensor feedback) can activate thermoelectric device 44 as required.This transducer is normally known in the industry, and can be Cold Mirrors type, capacitor type, resistor-type etc.In addition, thermoelectric device can be provided with variable power supply, and therefore can such as by changing supply voltage, adds heat and amount of cooling water is delivered to the air-flow passed through respectively, to adjust the environmental aspect of thermoelectric device operation Adaptive change by thermojunction and cold junction by various.The environmental aspect of this change can such as because of less or more frequently open door, place and cause into the environmental condition with higher or lower respiratory article and change in refrigerated enclosure device.
In addition, if the electric power polarity of thermoelectric device 44 is reversed, then thermojunction 38 and cold junction 40 will exchange.This allows successively provides additional cooling, and this additional cooling is supplied to the controlled surface be associated of such as glass door 22 by the cold junction (being 38 now) of thermoelectric device 44, and is supplied to the whole climate controlled environment of refrigerated enclosure device 20.This operator scheme can not need to glass door 22 demist or defrosting time during perform.In this mode of operation, the heat generated by thermojunction (being 40 now) removes by the refrigeration unit be associated with refrigerated enclosure device 20.
As shown in Figure 3, be not glass door 22, but other controlled surface 46 be associated with thermoelectric device 44 can be benefited from locate along air flow path, this air flow path moved according to priority on thermojunction 48, then on cold junction 50.Such as window, glass partition or spacer in static or transport applications or the surface of mirror part can be benefited from the present invention.Further, to be positioned in climate controlled environment and any general object controlled surface 46 trending towards accumulated condensate, fog or frost can be benefited from the present invention.Some examples can include but not limited to shelf in the glass partition in the window in building, the mirror part in bathroom, refrigerated display case, the window in automobile and mirror part, shelf and a lot of other examples.In addition, in the appropriate case, the present invention can be utilized to defrost from controlled surface 46 or remove condensate.
Although disclose several execution modes and application, those skilled in the art will recognize that disclosed application is exemplary, and also have other application a lot of also can be benefited from disclosed the present invention.Reason for this reason, should study claims to determine true scope of the present invention and content.
Claims (23)
1. one kind combines the refrigerated enclosure device of glass door, this glass door is allowed and is led to climate controlled environment, this refrigerated enclosure device comprises thermoelectric device, the inner surface that described thermoelectric device is the inwardly door of this climate controlled environment provides demist, this thermoelectric device is positioned at the inner side of door, the cold junction of described thermoelectric device is also placed in air-flow, but is placed on the downstream along controlled surface.
2. refrigerated enclosure device as claimed in claim 1, wherein, described thermoelectric device and described controlled surface are placed in climate controlled environment.
3. refrigerated enclosure device as claimed in claim 2, wherein, the thermojunction of described thermoelectric device was placed in air-flow before air-flow contacts with described controlled surface.
4. refrigerated enclosure device as claimed in claim 3, wherein, described air-flow is air curtain.
5. refrigerated enclosure device as claimed in claim 2, wherein, described climate controlled environment is one of refrigerated enclosure device and air conditioned spaces.
6. refrigerated enclosure device as claimed in claim 2, wherein, described climate controlled environment is one of stationary kind and mobile type.
7. refrigerated enclosure device as claimed in claim 1, wherein, described controlled surface is glass door, one of window and mirror part.
8. refrigerated enclosure device as claimed in claim 1, wherein, described thermoelectric device is attachment device.
9. refrigerated enclosure device as claimed in claim 1, wherein, described thermoelectric device is incorporated in controlled surface structure.
10. refrigerated enclosure device as claimed in claim 1, wherein, described thermoelectric device activated as required.
11. refrigerated enclosure devices as claimed in claim 10, wherein, described thermoelectric device activated based at least one in timer and humidity sensor feedback.
12. refrigerated enclosure devices as claimed in claim 1, wherein, the power supply for described thermoelectric device is regulated power supply, and described regulated power supply is allowed to you can well imagine at the thermojunction place of described thermoelectric device and cold junction punishment and added heat and amount of cooling water for variable.
13. refrigerated enclosure devices as claimed in claim 2, wherein, the polarity of described thermoelectric device is reversed with optionally supplement heat rejecter.
14. 1 kinds of operations combine the method for the refrigerated enclosure device of glass door, and this glass door is allowed and led to climate controlled environment, and this refrigerated enclosure device comprises thermoelectric device, comprises the steps:
A () is by being placed on the inner side of door by described thermoelectric device, for the inner surface of the inwardly door of this climate controlled environment provides demist, power supply for described thermoelectric device is regulated power supply, and described regulated power supply is allowed to you can well imagine at the thermojunction place of described thermoelectric device and cold junction punishment and added heat and amount of cooling water for variable.
15. methods as claimed in claim 14, wherein, described thermoelectric device and controlled surface are placed in climate controlled environment.
16. methods as claimed in claim 15, wherein, the thermojunction of described thermoelectric device was placed in air-flow before air-flow contacts with described controlled surface.
17. methods as claimed in claim 16, wherein, the cold junction of described thermoelectric device is also placed in described air-flow, but is placed on the downstream along described controlled surface.
18. methods as claimed in claim 16, wherein, described air-flow is air curtain.
19. methods as claimed in claim 14, wherein, described thermoelectric device is attachment device.
20. methods as claimed in claim 14, wherein, described thermoelectric device is incorporated in controlled surface structure.
21. methods as claimed in claim 14, wherein, described thermoelectric device activated as required.
22. methods as claimed in claim 21, wherein, described thermoelectric device activated based at least one in timer and humidity sensor feedback.
23. methods as claimed in claim 15, wherein, the polarity of described thermoelectric device is reversed with optionally supplement heat rejecter.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2007/086232 WO2009073021A1 (en) | 2007-12-03 | 2007-12-03 | Thermoelectric device for defogging and defrosting applications |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101884244A CN101884244A (en) | 2010-11-10 |
| CN101884244B true CN101884244B (en) | 2015-11-25 |
Family
ID=40718007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780101842.4A Expired - Fee Related CN101884244B (en) | 2007-12-03 | 2007-12-03 | For the thermoelectric device of defog and defrost application |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100199686A1 (en) |
| EP (1) | EP2229801A4 (en) |
| CN (1) | CN101884244B (en) |
| HK (1) | HK1151177A1 (en) |
| WO (1) | WO2009073021A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201250421A (en) * | 2011-06-01 | 2012-12-16 | Aopen Inc | Method for demisting a glass cover and display module thereof |
| PL2944230T3 (en) | 2012-09-24 | 2023-07-24 | Carrier Corporation | Refrigerated sales cabinet |
| WO2017003471A1 (en) * | 2015-06-30 | 2017-01-05 | Lockheed Martin Corporation | Condensation inhibiting device including thermoelectric generator, and method of inhibiting condensation |
| US10015844B2 (en) | 2015-06-30 | 2018-07-03 | Lockheed Martin Corporation | Condensation inhibiting device including thermoelectric generator, and method of inhibiting condensation |
| CN105486014B (en) * | 2016-01-29 | 2019-01-08 | 合肥华凌股份有限公司 | Door body and refrigeration equipment |
| CN106940111A (en) * | 2017-02-13 | 2017-07-11 | 合肥美的电冰箱有限公司 | Hothouse and direct cooling refrigerator for direct cooling refrigerator |
| TR201713310A2 (en) * | 2017-09-11 | 2019-03-21 | Bsh Ev Aletleri San Ve Tic As | A REFRIGERANT WITH AIR DIRECTIONAL ELEMENT |
| US11161455B2 (en) | 2017-11-30 | 2021-11-02 | Ford Global Technologies, Llc | Defrost/defog system side mirror with peltier element |
| CN111669997B (en) * | 2018-02-02 | 2022-03-04 | 开利公司 | Refrigerated sales cabinet |
| KR20200105610A (en) * | 2019-02-28 | 2020-09-08 | 엘지전자 주식회사 | Control method for refrigerator |
| US11559147B2 (en) | 2019-05-07 | 2023-01-24 | Carrier Corporation | Refrigerated display cabinet utilizing a radial cross flow fan |
| US11116333B2 (en) | 2019-05-07 | 2021-09-14 | Carrier Corporation | Refrigerated display cabinet including microchannel heat exchangers |
| US11492126B2 (en) * | 2019-07-31 | 2022-11-08 | B/E Aerospace, Inc. | Restricted space air chiller |
| CN111503968A (en) * | 2020-04-29 | 2020-08-07 | 珠海格力电器股份有限公司 | Air-cooled refrigerator and dehumidification method thereof |
| CN217686055U (en) * | 2021-12-27 | 2022-10-28 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3911245A (en) * | 1974-04-15 | 1975-10-07 | Cardinal Insulated Glass Co | Heated multiple-pane glass units |
| US4750335A (en) * | 1987-06-03 | 1988-06-14 | Hill Refrigeration Corporation | Anti-condensation means for glass front display cases |
| US6769260B2 (en) * | 2002-06-08 | 2004-08-03 | Samsung Electronics Co., Ltd. | Refrigerator for cosmetics and control method thereof |
| CN1520363A (en) * | 2001-04-25 | 2004-08-11 | I | Appts. and method for removing moisture |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8802637A (en) * | 1988-10-26 | 1990-05-16 | Holec Syst & Componenten | HUMIDITY LOWERING DEVICE FOR ELECTRICAL INSTALLATION CABINETS AND THE LIKE. |
| JPH0759622A (en) * | 1993-08-30 | 1995-03-07 | Sanyo Electric Co Ltd | Cabinet with mirror |
| US6470696B1 (en) * | 2001-09-18 | 2002-10-29 | Valerie Palfy | Devices and methods for sensing condensation conditions and for removing condensation from surfaces |
| US8044293B2 (en) * | 2005-02-18 | 2011-10-25 | GM Global Technology Operations LLC | High performance thermoelectric nanocomposite device |
| DE102005021590A1 (en) * | 2005-05-10 | 2006-11-16 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerating appliance with frame heating |
-
2007
- 2007-12-03 US US12/675,997 patent/US20100199686A1/en not_active Abandoned
- 2007-12-03 WO PCT/US2007/086232 patent/WO2009073021A1/en active Application Filing
- 2007-12-03 CN CN200780101842.4A patent/CN101884244B/en not_active Expired - Fee Related
- 2007-12-03 EP EP07871656.0A patent/EP2229801A4/en not_active Withdrawn
-
2011
- 2011-05-03 HK HK11104384.3A patent/HK1151177A1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3911245A (en) * | 1974-04-15 | 1975-10-07 | Cardinal Insulated Glass Co | Heated multiple-pane glass units |
| US4750335A (en) * | 1987-06-03 | 1988-06-14 | Hill Refrigeration Corporation | Anti-condensation means for glass front display cases |
| CN1520363A (en) * | 2001-04-25 | 2004-08-11 | I | Appts. and method for removing moisture |
| US6769260B2 (en) * | 2002-06-08 | 2004-08-03 | Samsung Electronics Co., Ltd. | Refrigerator for cosmetics and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2229801A4 (en) | 2013-12-04 |
| WO2009073021A1 (en) | 2009-06-11 |
| CN101884244A (en) | 2010-11-10 |
| US20100199686A1 (en) | 2010-08-12 |
| EP2229801A1 (en) | 2010-09-22 |
| HK1151177A1 (en) | 2012-01-20 |
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