EP1044639B1 - Niedrigtemperatur-Schauvitrine - Google Patents

Niedrigtemperatur-Schauvitrine Download PDF

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Publication number
EP1044639B1
EP1044639B1 EP00302635A EP00302635A EP1044639B1 EP 1044639 B1 EP1044639 B1 EP 1044639B1 EP 00302635 A EP00302635 A EP 00302635A EP 00302635 A EP00302635 A EP 00302635A EP 1044639 B1 EP1044639 B1 EP 1044639B1
Authority
EP
European Patent Office
Prior art keywords
air passage
fan
passage
low temperature
partition
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 - Lifetime
Application number
EP00302635A
Other languages
English (en)
French (fr)
Other versions
EP1044639A3 (de
EP1044639A2 (de
Inventor
Tomoki Oozeki
Atsushi Todoroki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
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
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Publication of EP1044639A2 publication Critical patent/EP1044639A2/de
Publication of EP1044639A3 publication Critical patent/EP1044639A3/de
Application granted granted Critical
Publication of EP1044639B1 publication Critical patent/EP1044639B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0404—Cases or cabinets of the closed type
    • A47F3/0408—Cases or cabinets of the closed type with forced air circulation
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0482—Details common to both closed and open types
    • 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
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/065—Details
    • F25D23/068—Arrangements for circulating fluids through the insulating material
    • 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
    • F25D2201/00—Insulation
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/063—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation with air guides
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0682—Two or more fans
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/22—Cleaning means for refrigerating devices

Definitions

  • This invention relates to a low temperature showcase according to the preambule of claim 1, and e.g. as disclosed in US-A-4964281.
  • FIG. 3 illustrates a known low temperature showcase 61 comprising a heat insulating body 62, a heat insulating wall 63 and a storage chamber partition wall 64.
  • An outer air passage 65 is formed between the heat insulating body 62 and the heat insulating wall 63
  • an inner air passage 66 is formed between the heat insulating wall 63 and the storage chamber partition wall 64.
  • the outer passage 65 and the inner passage 66 are completely sectioned so that together they form a complete double structure.
  • a fan 67 is mounted in the outer passage 65
  • a fan 68 is mounted in the inner passage 66. When each of the fans 67 and 68 is operated, cool air moves within the outer air passage 65 in the direction of arrow A2 and within the inner air passage 66 in the direction of arrow B2. Air is admitted into the outer and inner air passages 65 and 66 through an inlet which can be cleaned and maintained by lifting up deck pan 69 in the direction of the arrow.
  • Figures 4 and 5 illustrate another known low temperature showcase 81 (see US-A-4964281) in which air passage 83 is formed in the bottom portion of a heat insulating body 82.
  • Outer air passage 84 and an inner air passage 85 communicate with the air passage 83 and together form a double structure in a back portion of the heat insulating box body 82.
  • These outer and inner air passages 84 and 85 are separated by a partition wall 86. Air flows into the bottom air passages 83 through an inlet which can be cleaned and maintained by lifting up deck pan 92 in the direction of the arrow.
  • Figure 5 shows one fan 87 for supplying the outer air passage 84 and two fans 88 for supplying the inner air passage 85 positioned in the bottom passage 83.
  • the fans are mounted in substantially the same plane in a row across the width of the low temperature showcase 81.
  • a partition 89 is provided in the outlet side of fan casing 93 for the fan 87 which supplies the outer air passage 84 and the fans 88 which supply the inner air passage 85.
  • An outer air passage opening 90 and inner air passage openings 91 are formed in the partition member 89.
  • the outer air passage 65 is covered by the heat insulating wall 63 and the inner air passage 66 is interrupted by the fan 68 so cleaning and maintaining the drain which flows into the outer and inner air passages 65 and 66 is not easy.
  • a low temperature showcase comprising a bottom air passage provided in the bottom portion of a heat insulating body, an outer air passage and an inner air passage which communicate with said bottom air passage, a plurality of fans for supplying air to said outer and inner passages provided in said bottom air passage, a partition provided in an outlet for said fans, an outer air passage opening provided in said partition through which air is blown from a fan into the outer air passage and an inner air passage opening which is provided in the partition through which air is blown from a fan into the inner air passage, at least said outer air passage opening being formed in substantially all of the area in a longitudinal direction of said partition.
  • the fans are arranged in the bottom air passage across the width thereof and in substantially the same plane.
  • the showcase comprises a bottom portion blowing passage which is provided in a bottom portion of a heat insulating box body, an outer side blowing passage and an inner side blowing passage which are communicated with the bottom portion blowing passage, have a double structure and are provided in a back portion of the heat insulating box body, a plurality of fans for the outer side blowing passage and fans for the inner side blowing passage which are provided in the bottom portion blowing passage so as to be positioned within substantially the same plane, a partition member which is provided in an outlet side of a plurality of fans, an outer side blowing passage opening which is provided in the partition member and through which a blowing wind of the fan for the outer side blowing passage is introduced to the outer side blowing passage, and an inner side blowing passage opening which is provided in the partition member and through which a blowing wind of the fan for the inner side blowing passage is introduced to the inner side blowing passage, wherein at least the outer side blowing passage opening is formed in substantially all around the area in a longitudinal direction of the partition
  • a fan casing for mounting the fan is provided, the fan casing having a partition plate which sections between a fan chamber for mounting the fan for the outer side blowing passage and a fan chamber for mounting the fan for the inner side blowing passage, the partition member is constituted by a wall portion of the fan casing, and the outer side blowing passage opening and the inner side blowing passage opening are provided in the wall portion.
  • the outer air passage opening is formed in substantially all around the area in a longitudinal direction of the partition member, the outer air passage opening is increased so the blowing static pressure is reduced and it is possible to increase an amount of the wind blowing in the outer air passage. Furthermore, since the bottom portion blowing passage has no dividers in it, its cleaning and the maintenance can be easily performed thereby improving operability.
  • a low temperature showcase 1 of the present invention which comprises a heat insulating body 2, a heat insulating partition wall 3 provided at an interval with respect to the heat insulating partition wall 3.
  • An outer air passage 5 is formed between a back portion of the heat insulating box body 2 and the heat insulating partition wall 3, and an inner air passage 6 is formed between the heat insulating partition wall 3 and the storage chamber partition wall 4.
  • a cooling device (not shown) is located in the inner air passage 6.
  • a bottom air passage 7 communicates with the outer air passage 5 and the inner air passage 6 is formed in the bottom portion of the heat insulating body 2.
  • a deck pan 8 is provided on the bottom passage 7, and a storage chamber 9 on which goods can be displayed is provided above the deck pan 8. In this case, cleaning and a maintenance of a drain which flows into the bottom air passage 7 are performed by lifting up the deck pan 8 in the direction of the arrow.
  • each fan 11 for the outer air passage 5 is mounted in air chamber 14 and each fan 12 for the inner air passage 6 is mounted in the fan chamber 15.
  • a partition 16 separates the fan chambers 14 and 15 from each other.
  • a wall portion 17 which acts as a partition is provided in one side of the heat insulating wall 3 of the fan casing 13.
  • An outer air passage opening 18 is formed below the wall portion 17 in all the area of the low temperature showcase 1 in a widthwise direction (a lengthwise direction), and an outer air passage inlet 20 is formed in the heat insulating wall 3 in all the area of the low temperature showcase in a widthwise direction (a longitudinal direction). Further, an inner air passage opening 19 is formed in wall 17 on the surface facing each fan 12 in fan chamber 15. On assembly, the wall portion 17 of the fan casing 13 and the periphery of the outer air passage inlet 20 of the heat insulating wall 3 are brought into contact with each other.
  • a current of cool air A1 flows into the outer air passage 5 and a current of cool air B1 flows into the inner side air passage 6.
  • cool air in the storage chamber 9 is drawn into the fan casing 13 through suction port or inlet 21 provided in a lower portion of the front surface of the low temperature showcase 1.
  • Cool air sucked into the fan chamber 14 for the outer air passage 5 is introduced into the outer air passage 5 through the outer air passage opening 18 and the outer air passage inlet 20 after which it travels upwardly to be blown out from an outer air passage outlet (not shown) into the storage chamber 9.
  • each fan chamber 15 cool air sucked into each fan chamber 15 is introduced to the inner air passage 6 through the inner air passage opening 19 after which it travels upwardly where it is cooled via the cooling device (not shown) and blown out from an inner side blowing passage outlet (not shown) into the storage chamber 9.
  • the outer air passage opening 18 is formed in all the area in the longitudinal direction of the wall portion 17, the outer air passage opening 18 is enlarged so blowing static pressure is reduced and it is possible to increase the blowing amount of the outer air passage 5. Further, since the bottom blowing passage 7 has no partition or dividers in it, it is easy to clean and maintain thereby improving operability.
  • the heat insulating wall 3 is provided between the outer air passage 5 and the inner air passage 6, it may be a partition wall.
  • the opening for the outer side air passage is formed in substantially all of the area of the partition member in the longitudinal direction, the opening for the outer air passage is enlarged so the blowing static pressure is reduced and it is possible to increase the amount of blown air in the outer air passage. Further, since the bottom portion air passage does not have any partitions in it, it is easy to clean and maintain so its operability is improved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Claims (4)

  1. Tieftemperaturvitrine, umfassend einen unteren Luftkanal (7), der im unteren Teil eines wärmeisolierenden Körpers (2) vorgesehen ist, einen äußeren Luftkanal (5) und einen inneren Luftkanal (6), die mit dem genannten unteren Luftkanal (7) in Verbindung sind, eine Mehrzahl von Lüftern (11, 12) für den äußeren und den inneren Kanal (5, 6), die in dem genannten unteren Gebläsekanal (7) vorgesehen sind, eine in einem Auslass für die genannten Lüfter (11, 12) vorgesehene Trennwand (16), eine in der Trennwand (16) vorgesehene äußere Luftkanalöffnung (18), durch die Luft von einem Lüfter (11) in den äußeren Luftkanal (5) geblasen wird, und eine in der Trennwand (16) vorgesehene innere Luftkanalöffnung (19), durch die Luft von einem Lüfter (12) in den inneren Luftkanal (6) geblasen wird, dadurch gekennzeichnet, dass wenigstens die genannte äußere Luftkanalöffnung (18) im Wesentlichen im gesamten Bereich in einer Längsrichtung der genannten Trennwand (16) ausgebildet ist.
  2. Tieftemperaturvitrine nach Anspruch 1, bei der die Lüfter (11, 12) in einem Gehäuse (13) montiert sind, das mit einer Trennwand (16) versehen ist, die jede Lüfterkammer (15) für jeden Lüfter (12) für den äußeren Luftkanal (5) von der Lüfterkammer (14) für den Lüfter (11) für den inneren Luftkanal (6) trennt, wobei die genannte Trennwand (16) einen Wandabschnitt (17) des Lüftergehäuses (13) umfasst, wobei die Öffnung des äußeren Luftkanals (5) und die Öffnung des inneren Luftkanals in dem genannten Wandabschnitt (17) vorgesehen sind.
  3. Tieftemperaturvitrine nach Anspruch 1 oder Anspruch 2, bei der die Lüfter im unteren Luftkanal (7) über dessen Breite und im Wesentlichen in derselben Ebene angeordnet sind.
  4. Tieftemperaturvitrine nach einem der vorherigen Ansprüche, wobei der innere und der äußere Luftkanal (5, 6) eine Doppelstruktur haben und in einem hinteren Teil des wärmeisolierenden Körpers (2) angeordnet sind.
EP00302635A 1999-03-31 2000-03-29 Niedrigtemperatur-Schauvitrine Expired - Lifetime EP1044639B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP09137799A JP4033576B2 (ja) 1999-03-31 1999-03-31 低温ショーケース
JP9137799 1999-03-31

Publications (3)

Publication Number Publication Date
EP1044639A2 EP1044639A2 (de) 2000-10-18
EP1044639A3 EP1044639A3 (de) 2001-03-14
EP1044639B1 true EP1044639B1 (de) 2004-06-02

Family

ID=14024691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00302635A Expired - Lifetime EP1044639B1 (de) 1999-03-31 2000-03-29 Niedrigtemperatur-Schauvitrine

Country Status (6)

Country Link
EP (1) EP1044639B1 (de)
JP (1) JP4033576B2 (de)
KR (1) KR100341984B1 (de)
CN (1) CN1148136C (de)
ES (1) ES2219269T3 (de)
TW (1) TW466326B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6755042B2 (en) * 2002-10-04 2004-06-29 Carrier Commercial Refrigeration, Inc. Display case air duct partitioned for individual fans
NZ610991A (en) 2013-03-12 2014-04-30 Hussmann Corp Refrigerated merchandiser with pivotal shelf
US10477986B2 (en) * 2016-01-11 2019-11-19 Hussmann Corporation Fan plenum assembly and attachment in a merchandiser
CN106766538B (zh) * 2017-03-13 2023-04-21 广东维诺电器有限公司 一种同步循环的双温区酒柜或冷柜
CN107356038B (zh) * 2017-07-18 2020-07-31 瑞安市建宇食品机械加工厂 一种具有自动除冰和净化异味功能的冷藏设备
CN110375493B (zh) * 2018-04-13 2024-08-20 青岛海尔电冰箱有限公司 冷冻室在冷却室前侧回风的冰箱

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4361012A (en) * 1980-05-01 1982-11-30 Tyler Refrigeration Corporation Energy efficient refrigerated merchandiser display case
DE8137245U1 (de) * 1981-12-21 1982-06-24 Hoogstraal AG, 8634 Hombrechtikon Klimatisierte theke
JPH02101368A (ja) * 1988-10-06 1990-04-13 Sanyo Electric Co Ltd 低温ショーケースの運転方法

Also Published As

Publication number Publication date
CN1148136C (zh) 2004-05-05
CN1268656A (zh) 2000-10-04
TW466326B (en) 2001-12-01
ES2219269T3 (es) 2004-12-01
JP4033576B2 (ja) 2008-01-16
EP1044639A3 (de) 2001-03-14
KR20000063060A (ko) 2000-10-25
KR100341984B1 (ko) 2002-07-02
JP2000283629A (ja) 2000-10-13
EP1044639A2 (de) 2000-10-18

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