CN1211718A - Anti-dewing device for door of goods showing cabinet - Google Patents

Anti-dewing device for door of goods showing cabinet Download PDF

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Publication number
CN1211718A
CN1211718A CN98118549A CN98118549A CN1211718A CN 1211718 A CN1211718 A CN 1211718A CN 98118549 A CN98118549 A CN 98118549A CN 98118549 A CN98118549 A CN 98118549A CN 1211718 A CN1211718 A CN 1211718A
Authority
CN
China
Prior art keywords
door
heater
power supply
goods
cabinet
Prior art date
Application number
CN98118549A
Other languages
Chinese (zh)
Other versions
CN1128972C (en
Inventor
长沼弘
Original Assignee
三洋电机株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to JP9251012A priority Critical patent/JPH1183282A/en
Priority to JP251012/1997 priority
Priority to JP251012/97 priority
Application filed by 三洋电机株式会社 filed Critical 三洋电机株式会社
Publication of CN1211718A publication Critical patent/CN1211718A/en
Application granted granted Critical
Publication of CN1128972C publication Critical patent/CN1128972C/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04Preventing the formation of frost or condensate
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47FSPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00Show cases or show cabinets
    • A47F3/04Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0482Details common to both closed and open types
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B27/00Machines, plant, or systems, using particular sources of energy
    • F25B27/002Machines, plant, or systems, using particular sources of energy using solar energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/02Refrigerators including a heater
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

An anti-dewing device for door of goods showing cabinet is capable of supplying power for a heating element even without connecting a feeder line. The device comprises: a freely opening/closing door body (29) formed of transparent material, a conductive film heating element (3) equiped on the door body (29) formed of transparent material, and a solar cell (5) on the door body (29) for supplying power to the heating element (3).

Description

The anti-dewing device for door of goods showing cabinet
The present invention relates to a kind of anti-dewing device for door of goods showing cabinet, the anti-dewing device for door that particularly relates to a kind of like this goods showing cabinet, this anti-condensation device is the induced electromotive force power supply that utilizes the electromotive force of solar cell or produced by the principle of mutual inductance, can cancel the distribution of product showcase main body to the power supply usefulness of door body of going into business.
Generally, in order to prevent the door body dewfall of goods showing cabinet, known to the method that is attached to goods showing cabinet door body heater on glass (plate) power supply with electric conductivity, be the method that directly main body of the Men Tiyu goods showing cabinet of showcase is coupled together with power line.
But the method that directly connects power line exists following problems, and promptly when the shutter door body, distribution also moves along with moving of heater, bears the distortion of electric wire repeatedly and the distortion that causes, the reason of become outage, leaking electricity.
Particularly stretch into formula (reach in) door body, distribution extend in the doorframe in the hollow hinge axle of displacement minimum and then is connected on the heater during shutter door, the operations of wiring operation and installation door etc. are difficulty relatively, and the hinge breakthrough part near electric wire when shutter door, can be out of shape, produce broken string, leak current fault along with the deterioration of electric wire clad.
In addition, front and back sliding door body also has and uses volume flexible cord etc. to the end power supply of door, understands like this and cause many difficulties at aspects such as assembling operation, cost, reliabilities.
Again, the staggered sliding door door body that slides, owing to be that door more than two is staggered, thus be impossible by line powered, the method for also not switching at present to heater.Though also consider with track as the method for electrode to doorframe power supply, reliability, durability is relatively poor and problems such as easy pollution, corrosion, so be difficult to employing.
Therefore, the object of the present invention is to provide a kind of anti-dewing device for door of goods showing cabinet, this anti-condensation device does not directly connect with power line as the method to the heater power supply, can power to heater even without power line yet.
According to first kind of structure of the present invention, the anti-dewing device for door of described goods showing cabinet comprises: membranaceous heater, and this membranaceous heater has electric conductivity, but it is located on the door body of the freely openable of being made by transparent material; Power supply unit, this unit can be to membranaceous heater power supply, and in addition, above-mentioned power supply unit is to be made of the solar cell that is located on the above-mentioned door body.
According to second kind of structure of the present invention, except above-mentioned first kind of described situation of structure, in addition, described door body has the double-layer structural of storehouse outside glass and inside-of-refrigerator glass.Heater is located at the inner face of the outside, storehouse glass, and solar cell is located at the inner face of inside-of-refrigerator glass, is provided with the coiled type electrode between heater and solar cell.
According to the third structure of the present invention, the anti-dewing device for door of described goods showing cabinet comprises: membranaceous heater, and this membranaceous heater has electric conductivity, but it is located on the door body of the freely openable of being made by transparent material; Power supply unit, this unit can be to this membranaceous heater power supplies, and in addition, above-mentioned power supply unit is by being located on the goods showing cabinet main body, being used for the primary winding of mutual inductance and being located at that secondary coil on the above-mentioned door body constitutes.
According to the 4th kind of structure of the present invention, except above-mentioned first kind of structure to the third structure the described situation of any structure, in addition, the staggered sliding door of above-mentioned Men Tiwei slidingtype.
According to the present invention, when the heater on being located at a body is powered, cancelled power supply distribution from the goods showing cabinet main body to the door body, also can power even without power line, therefore, when producing or production back door body can not fettered by distribution, can freely open and close and the moving door body.Can avoid producing following problems, produce distortion because of electric wire twists when promptly distribution being arranged, and then cause problems such as broken string, electric leakage.
Brief description of drawings is as follows:
Fig. 1 is the axonometric drawing of an embodiment of the goods showing cabinet that the present invention relates to of expression.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is the B-B sectional drawing of Fig. 1.
Fig. 4 is the sectional drawing of expression anti-condensation device.
Fig. 5 is the axonometric drawing of another embodiment of the goods showing cabinet that the present invention relates to of expression.
Fig. 6 is the view of expression mutual inductance principle.
Fig. 7 is the axonometric drawing of the another embodiment of expression.
Fig. 8 is the C-C sectional drawing of Fig. 7.
With reference to the accompanying drawings embodiments of the invention are described.
In Fig. 1, Fig. 2,21 is goods showing cabinet, and this goods showing cabinet 21 is provided with the main body 25 of being surrounded by heat-barrier material 23.The first half in main body 25 fronts is provided with front glass 27, is provided with door body 29 a pair of slidingtype, that can open and close above the main body 25 at this.The bottom of main body 25 is provided with cooling chamber 31, and the upstream side of the air stream in this cooling chamber 31 disposes air blast 33 and evaporimeter 35.By refrigerant pipe, not shown compressor, expansion valve, condenser etc. are connected with this evaporimeter 35.Air in the storeroom 37 is inhaled in the cooling chamber 31 by suction inlet 39, after air blast 33, evaporimeter 35 coolings, again in blow-off outlet 41 blows to storeroom 37.This cold air that blows out forms air curtain on the top of storeroom 37, descends along front glass 27, is inhaled into again in the cooling chamber 31 by suction inlet 39 then.Above-mentioned air curtain can prevent that cold air from escaping when beating opening door body 29.
As shown in Figure 3, an opposite house body 29 is the staggered sliding doors of slidingtype.This body 29 has the transparent body 30 by doorframe 32 clampings, this transparent body 30 as shown in Figure 4, it is the double-decker with storehouse outside glass 7 and inside-of-refrigerator glass 9, be provided with the distance piece 17 of the drier 19 of packing at the circumference of each glass, the sealant 11 of polysulfide rubber and so on is arranged in the arranged outside of this distance piece 17.
Inner face at the outside, storehouse glass 7 is provided with for example by heaters 3 that constitute, that have electric conductivity such as hot line reflectance coatings.This hot line reflectance coating is overlapped successively by evaporation layer and protective clear layer etc. and is laminated; wherein the evaporation layer is to be made of conductive metal such as the bottom of polyester and so on and silver, titanium oxide or aluminium; this hot line reflectance coating has moisture resistance and selects the penetration function, can see through the visible light reflected infrared ray.Specifically, use for example poly terephthalic acid diol ester (PET) etc.
Inner face at inside-of-refrigerator glass 9, in order not influence the bandwagon effect in the storehouse, be provided with the transparent solar cell 5 that can see through visible rays, be provided with coiled type electrode 15 between this solar cell 5 and above-mentioned heater 3, this electrode 15 is connected with heater 3 by bus 13.Solar cell 5 constitutes power supply unit.
The following describes the action of this anti-condensation device.
Sunshine or room light see through the heater 3 that is made of storehouse outside glass 7 and hot line reflectance coating etc., when light arrives solar cell 5, this solar cell 5 just produces electromotive force, and electric current flows on the heater 3 through electrode 15 and bus 13, and this heater 3 just generates heat.This heating can prevent dewfall on the glass 7 of the outside, storehouse.Because this heater 3 is to adopt the hot line reflectance coating,, can obtain further effect so radiant heat also can make the temperature of glass surface rise.The outside, storehouse glass 7 is owing to accept the hot line of injecting and the hot line that reflects by the hot line reflectance coating, and the temperature of glass surface just rises, and therefore, adds the heating of heater 3, and temperature can further raise.
Generally speaking, because alternating expression sliding door body has the door body more than two staggered, can hinder the distribution of power supply usefulness, so can not power by power supply.According to this embodiment, the door body 29 of goods showing cabinet is made compound glass with heater 3 and solar cell 5, utilize electromotive force that sunshine or room light produce and to heater 3 power supplies, utilize its heat to prevent the glass surface dewfall of a body 29, the distribution of the usefulness that therefore do not need to power.Even the 29 staggered plug-type sliding door bodies of the door body more than two also can be to heater 3 energisings.Therefore, all can not fettered during production or after producing by distribution, but freely openable and mobile.
Below, another embodiment is described.
In this embodiment, the power supply unit to the heater power supply is that primary winding and the secondary coil that adopts mutual inductance to use constitutes.In Fig. 5, the main body of 51 expression goods showing cabinets, this main body 51 is coated by heat-barrier material 43.
Peristome in main body 51 is provided with alternating expression door body 50, and this body 50 has the transparent body 52 by 49 clampings of door body frame.This transparent body 52 is the double-layer structurals that comprise storehouse outside glass 55 and inside-of-refrigerator glass 57, is provided with the distance piece 63 of the drier of packing at the circumference of each glass, is provided with the sealant 67 of polysulfide rubber and so in these distance piece 63 outsides.Inner face at the outside, storehouse glass 55 is provided with heater 59, is provided with bus 61 at the two ends of this heater 59, and the secondary coil of mutual inductance being used by lead 71 69 is connected on the bus 61.That is, on the transparent body 52 of door body 50, be provided with the secondary coil 69 that mutual inductance is used, on aforementioned body 51, be provided with the primary winding 47 that mutual inductance is used.Primary winding 47 passes through from the inside of heat-barrier material 43 and links to each other with power supply (not shown), supplies alternating current by power supply to primary winding.
The following describes the mutual inductance principle.As shown in Figure 6, A, B represent coil respectively, owing to the electric current I a that flows on loop A produces magnetic field, suppose that it is Φ that the magnetic flux of coil B is passed in this magnetic field, and then Φ is directly proportional with Ia.
Φ=M.Ia
Here, make Ia along with the time when variation, Φ also changes, and produces induced electromotive force owing to electromagnetic induction makes coil B.
VB=-dΦ/dt=-M.dIa/dt
This phenomenon is called mutual inductance, and M is called mutual inductance proportionality constant.If loop A is the coil of Na circle, even flow through same electric current, the magnetic field that is produced still is Na times.Again, if coil B is the coil of Nb circle, produce on every figure coil with above-mentioned the same induced electromotive force, whole winding produces Nb electromotive force doubly.At this moment following formula is also set up, but M is a Na.Nb electromotive force doubly.
With reference to Fig. 5, when being added in alternating voltage on the primary winding 47, the magnetic flux that is produced passes secondary coil 69, produces induced electromotive force on this secondary coil 69, and electric current just flows on heater 59, so these heater 59 heatings.According to this embodiment,,,, also can make heater 59 heatings of glass 55 inboards, the outside, storehouse according to the mutual inductance principle even connect a body 50 and main body 51 without power supply wiring owing on the peristome of main body 51 and door body 50, be provided with primary winding 47 and secondary coil 69.Therefore, under no distribution, contactless situation, also can be to heater 59 power supplies that are used to be heated up in a body 50 surfaces, so also can carry out safe power supply to the staggered door body 50 of the multi-discs such as sliding door body 50 of alternating expression.Again, owing to the installation of door body 50, the constraint that field-strip can not be subjected to distribution, therefore improved operating efficiency, the user can adopt openable body 50 about the door body conduct with energized heater 59.
Below another embodiment is described.
Utilize the mutual inductance principle that electric current is flowed on heater and make the structure of its heating, also can be used for vertical goods showing cabinet shown in Figure 7.This vertical goods showing cabinet 81 has the main body 85 that is surrounded with heat-barrier material 83 (Fig. 8).This main body 85 is provided with storeroom 87 and cooling chamber 89, is provided with a body 91 in the front of this storeroom 87.In cooling chamber 89, be provided with refrigerating circuit, because of basic identical, so no longer repeat specification with the structure of the foregoing description.Above-mentioned door body 91 is to stretch into formula door body as shown in Figure 8, has doorframe 117, is connected with liner 95 and magnet 97 on this doorframe 117.In addition, doorframe 117 is gone back clamping the transparent body 100.
This transparent body 100 is the double-layer structurals with storehouse outside glass 103 and inside-of-refrigerator glass 105, and the circumference of every block of glass is equipped with the distance piece 107 of the drier of packing into, is provided with the sealant 109 of polysulfide rubber and so in the outside of this distance piece 107.Inner face at the outside, storehouse glass 103 is provided with heater 113, be provided with bus 115 at the two ends of this heater 113, and the secondary coil 119 that this bus 115 is used by lead 93 and mutual inductance is connected.
That is to say, on the transparent body 100 of door body 91, be provided with the secondary coil 119 that mutual inductance is used, on aforementioned body 85, be provided with the primary winding 99 that mutual inductance is used.This primary winding 99 is connected with power supply (not shown) by the lead 93 of heat-barrier material inside, powers to primary winding 99 via lead.
When alternating voltage was added on the primary winding 99, the magnetic flux that is produced just passed secondary coil 119, produced induced electromotive force on this secondary coil 119, produced electric current on heater 113, so heater 113 just generates heat.According to this embodiment, because at the peristome of main body 85 and stretch into and be provided with primary winding 99 and secondary coil 119 on the formula door body 91, even so stretch into formula door body 91 and main body 85 without the power supply wiring connection according to the mutual inductance principle, the heater 113 that is located on glass 103 inboards, the outside, storehouse is also heatable, therefore, can prevent the outside, storehouse glass 103 dewfall.
More than, the induced electromotive force that produces utilizing electromagnetic induction can make two embodiment that electric current flows on heater be illustrated, the common ground of these two embodiment is: the heat that the primary winding that is provided with for mutual inductance produces raises the surface temperature of storehouse inner opening portion, can prevent this part dewfall effectively.In addition, comprise and utilize solar cell can make embodiment that electric current flows on heater at interior above-mentioned all embodiment, therefore very safe because conducting parts can be airtight, and application of load on distribution not, so can improve greatly service life.
As seen from the above description, anti-dewing device for door according to the goods showing cabinet that the present invention relates to, when the heater on being located at a body is powered, do not need distribution from goods showing cabinet to door body power supply usefulness, also can power without power line, therefore, when producing or after producing, not fettered by distribution, but freely openable door body.Owing to there is not distribution, can avoid causing that because of electric wire twists distortion causes the fault that breaks or leak electricity.

Claims (4)

1. the anti-dewing device for door of a goods showing cabinet, described anti-dewing device for door comprises: membranaceous heater, but this membranaceous heater be located on the door body of the freely openable of making by transparent material, and have electric conductivity; Power supply unit, this power supply unit can is characterized in that above-mentioned power supply unit is to be made of the solar cell that is located on the above-mentioned door body to membranaceous heater power supply.
2. the anti-dewing device for door of goods showing cabinet as claimed in claim 1, it is characterized in that, above-mentioned door body has the double-decker of storehouse outside glass and inside-of-refrigerator glass, heater is located at the inner face of the outside, storehouse glass, solar cell is located at the inner face of inside-of-refrigerator glass, is provided with the coiled type electrode between heater and solar cell.
3. the anti-dewing device for door of a goods showing cabinet, described anti-dewing device for door comprises: membranaceous heater, but this membranaceous heater be located on the door body of the freely openable of making by transparent material, and have electric conductivity; Power supply unit, this power supply unit can is characterized in that above-mentioned power supply unit is to be made of primary winding and secondary coil that mutual inductance is used to membranaceous heater power supply, and wherein primary winding is located on the main body of goods showing cabinet, and secondary coil is located on the above-mentioned door body.
4. as the anti-dewing device for door of each the described goods showing cabinet in the claim 1~3, it is characterized in that above-mentioned door body is the staggered sliding door of slidingtype.
CN98118549A 1997-09-16 1998-09-01 Anti-dewing device for door of goods showing cabinet CN1128972C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP9251012A JPH1183282A (en) 1997-09-16 1997-09-16 Moisture condensation proof unit for door body of showcase
JP251012/1997 1997-09-16
JP251012/97 1997-09-16

Publications (2)

Publication Number Publication Date
CN1211718A true CN1211718A (en) 1999-03-24
CN1128972C CN1128972C (en) 2003-11-26

Family

ID=17216331

Family Applications (1)

Application Number Title Priority Date Filing Date
CN98118549A CN1128972C (en) 1997-09-16 1998-09-01 Anti-dewing device for door of goods showing cabinet

Country Status (4)

Country Link
JP (1) JPH1183282A (en)
KR (1) KR100308650B1 (en)
CN (1) CN1128972C (en)
TW (1) TW410966U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101236045B (en) * 2007-02-01 2011-02-02 海尔集团公司 Ice bar door automatic dew removing device and dew removing method
CN102519204A (en) * 2011-12-08 2012-06-27 合肥美的荣事达电冰箱有限公司 Bar counter door for refrigerator and refrigerator with same
CN102735010A (en) * 2012-07-11 2012-10-17 合肥美的荣事达电冰箱有限公司 Refrigerating apparatus

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2379479T3 (en) 2005-07-04 2012-04-26 Hoshizaki Denki Kabushiki Kaisha Exhibitor
JP5421970B2 (en) * 2005-07-04 2014-02-19 ホシザキ電機株式会社 Showcase
JP4869715B2 (en) * 2005-07-04 2012-02-08 ホシザキ電機株式会社 Showcase
JP2007303707A (en) * 2006-05-10 2007-11-22 Tokyo Rika Kikai Kk Dryer
KR200455624Y1 (en) * 2008-12-10 2011-09-16 롯데알미늄 주식회사 Frost prevention system for sliding door in showcase
CN105650998B (en) 2013-04-23 2020-08-25 Lg电子株式会社 Refrigerator and control method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101236045B (en) * 2007-02-01 2011-02-02 海尔集团公司 Ice bar door automatic dew removing device and dew removing method
CN102519204A (en) * 2011-12-08 2012-06-27 合肥美的荣事达电冰箱有限公司 Bar counter door for refrigerator and refrigerator with same
CN102519204B (en) * 2011-12-08 2014-08-13 合肥美的电冰箱有限公司 Bar counter door for refrigerator and refrigerator with same
CN102735010A (en) * 2012-07-11 2012-10-17 合肥美的荣事达电冰箱有限公司 Refrigerating apparatus
CN102735010B (en) * 2012-07-11 2016-02-24 合肥美的电冰箱有限公司 Refrigeration plant

Also Published As

Publication number Publication date
CN1128972C (en) 2003-11-26
JPH1183282A (en) 1999-03-26
KR100308650B1 (en) 2001-11-30
TW410966U (en) 2000-11-01
KR19990029390A (en) 1999-04-26

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