JP4033576B2 - Low temperature showcase - Google Patents

Low temperature showcase Download PDF

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Publication number
JP4033576B2
JP4033576B2 JP09137799A JP9137799A JP4033576B2 JP 4033576 B2 JP4033576 B2 JP 4033576B2 JP 09137799 A JP09137799 A JP 09137799A JP 9137799 A JP9137799 A JP 9137799A JP 4033576 B2 JP4033576 B2 JP 4033576B2
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Japan
Prior art keywords
air passage
fan
temperature showcase
opening
outer air
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JP09137799A
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JP2000283629A (en
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友樹 大関
篤 轟
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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Priority to JP09137799A priority Critical patent/JP4033576B2/en
Priority to TW088121353A priority patent/TW466326B/en
Priority to CNB001043749A priority patent/CN1148136C/en
Priority to ES00302635T priority patent/ES2219269T3/en
Priority to EP00302635A priority patent/EP1044639B1/en
Priority to KR1020000016378A priority patent/KR100341984B1/en
Publication of JP2000283629A publication Critical patent/JP2000283629A/en
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Publication of JP4033576B2 publication Critical patent/JP4033576B2/en
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    • 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

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  • 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)

Description

【０００１】
【発明の属する技術分野】
本発明は、外側送風路および内側送風路を断熱箱体の背部に備えた低温ショーケースに関する。
【０００２】
【従来の技術】
図３において、符号６１は従来の低温ショーケースを示す。この低温ショーケース６１では、断熱箱体６２、断熱壁６３及び貯蔵室仕切壁６４が設けられ、断熱箱体６２と断熱壁６３との間には外側送風路６５が形成され、断熱壁６３と貯蔵室仕切壁６４との間には内側送風路６６が形成され、これら外側送風路６５及び内側送風路６６が完全に仕切られて完全二重構造の送風路６５、６６が形成される。外側送風路６５には外側送風路用ファン６７が設けられ、内側送風路６６には内側送風路用ファン６８が設けられる。各ファン６７、６８が運転されると、外側送風路６５内を冷気が矢印Ａ２の方向に移動すると共に、内側送風路６６内を冷気が矢印Ｂ２の方向に移動する。符号６９はデッキパンを示し、このデッキパン６９を白抜き矢印方向に引き上げて、外側及び内側送風路６５、６６に流れ込むドレンの清掃やメンテナンスが行われる。
【０００３】
この低温ショーケース６１は外側送風路６５及び内側送風路６６における送風静圧が小さいので、送風路６５、６６を通過する風量を増大させることができるという利点がある。
【０００４】
図４において、符号８１は別の従来の低温ショーケースを示す。この低温ショーケース８１では、断熱箱体８２の底部には底部送風路８３が形成され、この底部送風路８３に連通する二重構造の外側送風路８４および内側送風路８５が断熱箱体８２の背部に形成される。これら外側送風路８４および内側送風路８５は仕切壁８６で仕切られる。符号９２はデッキパンを示し、このデッキパン９２を白抜き矢印方向に引き上げて、底部送風路８３に流れ込むドレンの清掃やメンテナンスが行われる。底部送風路８３には、図５に示すように、１個の外側送風路用ファン８７とこの外側送風路用ファン８７の両側に位置する２個の内側送風路用ファン８８とが低温ショーケース８１の幅方向に一列に（略同一平面内に位置するように）配置され、これら外側送風路用ファン８７および内側送風路用ファン８８のファンケーシング９３の出口側には仕切部材８９が設けられ、この仕切部材８９には外側送風路用開口９０及び内側送風路用開口９１が形成される。外側送風路用ファン８７および内側送風路用ファン８８を運転すると、送風が矢印方向に導かれる。すなわち、底部送風路８３からの送風は外側送風路用開口９０と仕切壁８６に形成された仕切壁開口９４とを通じて外側送風路用ファン８７の送風が外側送風路８４に導かれる。一方、底部送風路８３からの送風は仕切部材８９に設けられた内側送風路用開口９１を通じて内側送風路用ファン８８の送風が内側送風路８５に導かれる。
【０００５】
この低温ショーケース８１では、デッキパン９２を引き上げて底部送風路８３に流れ込むドレンの清掃やメンテナンスを行うときに、邪魔になるものが少ないので、清掃やメンテナンスを行いやすいという利点がある。
【０００６】
【発明が解決しようとする課題】
しかしながら、従来の完全二重構造の低温ショーケース６１では、外側及び内側送風路６５、６６に流れ込むドレンの清掃やメンテナンスを行う時に、外側送風路６５は断熱壁６３に覆われていると共に内側送風路６６は内側送風路用ファン１１８等が邪魔になるので、作業性が極めて低いという問題がある。
【０００７】
また、従来の外側及び内側送風路用ファン８７、８８を幅方向に一列に配置した低温ショーケース８１では、外側送風路用開口９０（仕切壁開口９１）が小さいので、この外側送風路用開口９０において送風静圧が増大し、外側送風路８４を通る送風量が減少するという問題がある。
【０００８】
そこで、本発明の目的は、上述した従来の技術が有する課題を解消し、ショーケース本体の底部の作業性が良好で、且つ外側送風路の送風量を増大させることができる低温ショーケースを提供することにある。
【０００９】
【課題を解決するための手段】
請求項１記載の発明は、断熱箱体の底部に底部送風路を設け、この底部送風路に連通する二重構造の外側送風路および内側送風路を前記断熱箱体の背部に設け、前記底部送風路に略同一面内に位置するように複数の外側送風路用および内側送風路用のファンを設け、これらのファンをファン室でそれぞれ仕切ると共に、これら複数のファン室の出口側に前記断熱箱体の幅方向の全域に亘って仕切部材を設け、この仕切部材に設けた外側送風路用の開口を通じて外側送風路用のファンの送風を外側送風路に導くと共に、前記仕切部材に設けた内側送風路用の開口を通じて内側送風路用のファンの送風を内側送風路に導くように構成した低温ショーケースにおいて、少なくとも前記外側送風路用の開口及び前記外側送風路の入口を前記断熱箱体の幅方向の全域に亘って形成したことを特徴とするものである。
【００１１】
これらの発明によれば、少なくとも外側送風路用の開口を仕切部材の長さ方向ほぼ全域に亘って形成したので、外側送風路用の開口が大きくなり、送風静圧が減少し、外側送風路の送風量を増大させることができる。また、底部送風路が分割されていないので、底部送風路の清掃やメンテナンスを行いやすく、作業性を向上させることができる。
【００１２】
【発明の実施の形態】
以下、本発明の一実施形態を図面に基づいて説明する。
【００１３】
図１において、符号１は本実施形態による低温ショーケースを示す。この低温ショーケース１は、断熱箱体２と、この断熱箱体２と間隔をあけて設けられる断熱仕切壁３と、この断熱仕切壁３と間隔をあけて設けられる貯蔵室仕切壁４を備え、断熱箱体２の背部と断熱仕切壁３との間には外側送風路５が形成されると共に、断熱仕切壁３と貯蔵室仕切壁４との間には内側送風路６が形成される。内側送風路６には、図示を省略した冷却器が設置される。断熱箱体２の底部には外側送風路５及び内側送風路６に連通する底部送風路７が形成される。この底部送風路７の上にはデッキパン８が設けられ、このデッキパン８の上方には商品が陳列される貯蔵室９が形成されている。尚、デッキパン８を白抜き矢印方向に引き上げて、底部送風路８３に流れ込むドレンの清掃やメンテナンスが行われる。
【００１４】
底部送風路７には、図２に示すように、１個の外側送風路用ファン１１と、この外側送風路用ファン１１の両側に位置する２個の内側送風路用ファン１２とが設けられ、これらは低温ショーケース１の幅方向に一列に（略同一面内に位置するように）並んでいる。外側及び内側送風路用ファン１１、１２はファンケーシング１３に取り付けられ、このファンケーシング１３内には外側送風路用ファン１１が取り付けられるファン室１４と、内側送風路用ファン１２が取り付けられるファン室１５とが形成され、これらファン室１４、１５を仕切る仕切板１６が設けられる。ファンケーシング１３の断熱壁３側には壁部（仕切部材）１７を備え、この壁部１７の下部には外側送風路用開口１８が低温ショーケース１の幅方向（長さ方向）の全域に亘って形成されると共に、断熱壁３には外側送風路入口２０が低温ショーケース１の幅方向（長さ方向）の全域に亘って形成されている。また、壁部１７の内、内側送風路用ファン１２のファン室１５に臨む面には内側送風路用開口１９が形成される。尚、図中、ファンケーシング１３の壁部１７と断熱壁３の外側送風路入口２０の周囲とは実際には接している。
【００１５】
図中矢印Ａ１は、外側通風路５に流れ込む冷気の流れを示し、矢印Ｂ１は内側通風路６に流れ込む冷気の流れを示す。外側及び内側送風路用ファン１１、１２を運転させると、図１に示すように、低温ショーケース１の前面下部に設けられた吸込口２１を通じて貯蔵室９の冷気が吸い込まれ、この吸い込まれた冷気は低部送風路３を通り、ファンケーシング１３内に吸い込まれる。外側送風路用ファン１１のファン室１４に吸い込まれた冷気は、ファンケーシング１３内の下部で低温ショーケース１の幅方向に広がり、外側送風路用開口１８と外側送風路入口２０とを通じて外側通風路５に導かれて上昇し、外側通風路用吹出口（図示せず）から貯蔵室９に吹き出される。一方、内側送風路用ファン１２のファン室１５に吸い込まれた冷気は、内側送風路用開口１９を通じて、内側通風路６に導かれて上昇し、前記冷却器を経て冷却され、内側通風路用吹出口（図示せず）から貯蔵室９に吹き出される。
【００１６】
本実施形態では、外側送風路用開口１８を壁部１７の長さ方向全域に亘って形成したので、外側送風路用開口１８が大きくなり、送風静圧が減少し、外側送風路５の送風量を増大させることができる。また、底部送風路７が完全に分割されていないので、底部送風路７の清掃やメンテナンスを行いやすく、作業性を向上させることができる。
【００１７】
以上、一実施の形態に基づいて本発明を説明したが、本発明はこれに限定されるものではない。本実施形態では、外側送風路５及び内側送風路６の間に断熱壁３が設けられているが、この断熱壁３は仕切壁でもよい。
【００１８】
【発明の効果】
上述の発明によれば、少なくとも外側送風路用の開口を仕切部材の長さ方向ほぼ全域に亘って形成したので、外側送風路用の開口が大きくなり、送風静圧が減少し、外側送風路の送風量を増大させることができる。また、底部送風路が分割されていないので、底部送風路の清掃やメンテナンスを行いやすく、作業性を向上させることができる。
【図面の簡単な説明】
【図１】本実施形態による低温ショーケースの底部を示す縦断面図である。
【図２】ファンケーシングと断熱壁とを示す斜視図である。
【図３】従来の低温ショーケースの底部を示す縦断面図である。
【図４】別の従来の低温ショーケースの底部を示す縦断面図である。
【図５】図４のファンケーシングと断熱壁とを示す斜視図である。
【符号の説明】
１ 低温ショーケース
２ 断熱箱体
５ 外側送風路
６ 内側送風路
７ 底部送風路
１１ 外側送風路用ファン
１２ 内側送風路用ファン
１３ ファンケーシング
１７ 壁部
１８ 外側送風路用開口
１９ 内側送風路用開口[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a low temperature showcase having an outer air passage and an inner air passage on the back of a heat insulating box.
[0002]
[Prior art]
In FIG. 3, reference numeral 61 denotes a conventional low-temperature showcase. In this low temperature showcase 61, a heat insulating box 62, a heat insulating wall 63 and a storage compartment partition wall 64 are provided, and an outer air blowing path 65 is formed between the heat insulating box 62 and the heat insulating wall 63. An inner air passage 66 is formed between the storage chamber partition wall 64 and the outer air passage 65 and the inner air passage 66 are completely partitioned to form air ducts 65 and 66 having a completely double structure. The outer air passage 65 is provided with an outer air passage fan 67, and the inner air passage 66 is provided with an inner air passage fan 68. When each of the fans 67 and 68 is operated, the cool air moves in the direction of the arrow A2 in the outer air blowing path 65, and the cool air moves in the direction of the arrow B2 in the inner air blowing path 66. Reference numeral 69 denotes a deck pan. The deck pan 69 is pulled up in the direction of the white arrow, and drainage and maintenance of the drain that flows into the outer and inner air passages 65 and 66 are performed.
[0003]
The low temperature showcase 61 has an advantage that the air flow passing through the air passages 65 and 66 can be increased because the static air pressure in the outer air passage 65 and the inner air passage 66 is small.
[0004]
In FIG. 4, the code | symbol 81 shows another conventional low-temperature showcase. In this low temperature showcase 81, a bottom air passage 83 is formed at the bottom of the heat insulation box 82, and a double structure outer air passage 84 and an inner air passage 85 communicating with the bottom air passage 83 are provided in the heat insulation box 82. Formed on the back. The outer air passage 84 and the inner air passage 85 are partitioned by a partition wall 86. Reference numeral 92 denotes a deck pan. The deck pan 92 is pulled up in the direction of the white arrow, and the drain that flows into the bottom air passage 83 is cleaned and maintained. As shown in FIG. 5, the bottom air passage 83 includes a single outer air passage fan 87 and two inner air passage fans 88 located on both sides of the outer air passage fan 87. 81 are arranged in a line in the width direction of 81 (so as to be positioned in substantially the same plane), and a partition member 89 is provided on the outlet side of the fan casing 93 of the outer air passage fan 87 and the inner air fan 88. The partition member 89 has an outer air passage opening 90 and an inner air passage opening 91 formed therein. When the outer air passage fan 87 and the inner air fan 88 are operated, the air is guided in the direction of the arrow. That is, the air from the bottom air passage 83 is guided to the outer air passage 84 through the outer air passage opening 90 and the partition wall opening 94 formed in the partition wall 86. On the other hand, the air from the bottom air passage 83 is guided to the inner air passage 85 through the inner air passage opening 91 provided in the partition member 89.
[0005]
This low temperature showcase 81 has an advantage that it is easy to perform cleaning and maintenance because there are few obstacles when cleaning and maintenance of the drain that pulls up the deck pan 92 and flows into the bottom air passage 83.
[0006]
[Problems to be solved by the invention]
However, in the conventional low temperature showcase 61 having a full-duplex structure, the outer air passage 65 is covered with the heat insulating wall 63 and the inner air flow when the drain flowing into the outer and inner air passages 65 and 66 is cleaned and maintained. The passage 66 has a problem that workability is extremely low because the inner air duct fan 118 and the like are obstructive.
[0007]
Further, in the low temperature showcase 81 in which the outer and inner air passage fans 87 and 88 are arranged in a line in the width direction, the outer air passage opening 90 (partition wall opening 91) is small, so the outer air passage opening. There is a problem that the static air pressure increases at 90 and the amount of air flowing through the outer air passage 84 decreases.
[0008]
Accordingly, an object of the present invention is to provide a low-temperature showcase that solves the problems of the conventional techniques described above, has good workability at the bottom of the showcase body, and can increase the air flow rate of the outer air passage. There is to do.
[0009]
[Means for Solving the Problems]
The invention according to claim 1 is provided with a bottom air passage at the bottom of the heat insulation box, a double structure outer air passage and an inner air passage communicating with the bottom air passage are provided at the back of the heat insulation box, and the bottom A plurality of fans for the outside air passage and the inside air passage are provided so as to be positioned substantially in the same plane in the air passage, and the fans are partitioned by the fan chamber, and the heat insulation is provided on the outlet side of the plurality of fan chambers the partition member is provided over the entire width direction of the box body, it guides the blast fan for the outer air passage to the outside air passage through an opening for the outer air passage provided in the partition member, provided in the partition member In the low temperature showcase configured to guide the ventilation of the fan for the inner air passage to the inner air passage through the opening for the inner air passage, at least the opening for the outer air passage and the inlet of the outer air passage are provided in the heat insulating box. of It is characterized in that it has formed over the entire direction.
[0011]
According to these inventions, since at least the opening for the outside air passage is formed over substantially the entire length direction of the partition member, the opening for the outside air passage becomes large, the static air pressure is reduced, and the outside air passage is reduced. The amount of blown air can be increased. In addition, since the bottom air passage is not divided, the bottom air passage can be easily cleaned and maintained, and workability can be improved.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0013]
In FIG. 1, reference numeral 1 denotes a low-temperature showcase according to the present embodiment. The low-temperature showcase 1 includes a heat insulating box 2, a heat insulating partition wall 3 provided at a distance from the heat insulating box 2, and a storage room partition wall 4 provided at a distance from the heat insulating partition wall 3. An outer air passage 5 is formed between the back of the heat insulating box 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 compartment partition wall 4. . A cooler (not shown) is installed in the inner air passage 6. A bottom air passage 7 communicating with the outer air passage 5 and the inner air passage 6 is formed at the bottom of the heat insulating box 2. A deck pan 8 is provided on the bottom air passage 7, and a storage chamber 9 in which products are displayed is formed above the deck pan 8. The deck pan 8 is pulled up in the direction of the white arrow, and the drain that flows into the bottom air passage 83 is cleaned and maintained.
[0014]
As shown in FIG. 2, the bottom air passage 7 is provided with one outer air passage fan 11 and two inner air passage fans 12 located on both sides of the outer air passage fan 11. These are arranged in a line in the width direction of the low-temperature showcase 1 (so as to be positioned in substantially the same plane). The outer and inner air passage fans 11 and 12 are attached to a fan casing 13, and a fan chamber 14 in which the outer air passage fan 11 is attached and a fan chamber in which the inner air passage fan 12 is attached. 15 and a partition plate 16 for partitioning the fan chambers 14 and 15 is provided. A wall portion (partition member) 17 is provided on the heat insulation wall 3 side of the fan casing 13, and an outer air passage opening 18 is provided at the lower portion of the wall portion 17 in the entire width direction (length direction) of the low temperature showcase 1. The outside air passage inlet 20 is formed in the heat insulating wall 3 over the entire width direction (length direction) of the low temperature showcase 1. In addition, an inner air passage opening 19 is formed in a surface of the wall portion 17 facing the fan chamber 15 of the inner air passage fan 12. In the figure, 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 actually in contact with each other.
[0015]
In the figure, the arrow A1 indicates the flow of cold air flowing into the outer ventilation path 5, and the arrow B1 indicates the flow of cold air flowing into the inner ventilation path 6. When the outer and inner air passage fans 11 and 12 are operated, as shown in FIG. 1, the cold air in the storage chamber 9 is sucked through the suction port 21 provided in the lower front portion of the low temperature showcase 1 and is sucked. The cold air passes through the lower air passage 3 and is sucked into the fan casing 13. The cold air sucked into the fan chamber 14 of the outer air duct fan 11 spreads in the width direction of the low-temperature showcase 1 at the lower part in the fan casing 13, and is ventilated outside through the outer air duct opening 18 and the outer air duct inlet 20. The air is guided to the path 5 and rises, and is blown out to the storage chamber 9 from the outside air outlet (not shown). On the other hand, the cold air sucked into the fan chamber 15 of the inner air passage fan 12 is guided to the inner air passage 6 through the inner air passage opening 19 and rises, is cooled through the cooler, and is used for the inner air passage. It blows off into the storage room 9 from a blower outlet (not shown).
[0016]
In this embodiment, since the outer air passage opening 18 is formed over the entire length of the wall portion 17, the outer air passage opening 18 becomes larger, the air blowing static pressure is reduced, and the outer air passage 5 is fed. The air volume can be increased. Moreover, since the bottom air passage 7 is not completely divided, the bottom air passage 7 can be easily cleaned and maintained, and workability can be improved.
[0017]
As mentioned above, although this invention was demonstrated based on one Embodiment, this invention is not limited to this. In this embodiment, although the heat insulation wall 3 is provided between the outer ventilation path 5 and the inner ventilation path 6, this heat insulation wall 3 may be a partition wall.
[0018]
【The invention's effect】
According to the above-described invention, since at least the opening for the outside air passage is formed over almost the entire length direction of the partition member, the opening for the outside air passage becomes large, the static air pressure is reduced, and the outside air passage is reduced. The amount of blown air can be increased. In addition, since the bottom air passage is not divided, the bottom air passage can be easily cleaned and maintained, and workability can be improved.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a bottom portion of a low-temperature showcase according to the present embodiment.
FIG. 2 is a perspective view showing a fan casing and a heat insulating wall.
FIG. 3 is a longitudinal sectional view showing the bottom of a conventional low-temperature showcase.
FIG. 4 is a longitudinal sectional view showing the bottom of another conventional low-temperature showcase.
5 is a perspective view showing a fan casing and a heat insulating wall of FIG. 4;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Low-temperature showcase 2 Heat insulation box 5 Outer air passage 6 Inner air passage 7 Bottom air passage 11 Outer air passage fan 12 Inner air passage fan 13 Fan casing 17 Wall 18 Outer air passage opening 19 Inner air passage opening

Claims (1)

断熱箱体の底部に底部送風路を設け、この底部送風路に連通する二重構造の外側送風路および内側送風路を前記断熱箱体の背部に設け、前記底部送風路に略同一面内に位置するように複数の外側送風路用および内側送風路用のファンを設け、これらのファンをファン室でそれぞれ仕切ると共に、これら複数のファン室の出口側に前記断熱箱体の幅方向の全域に亘って仕切部材を設け、この仕切部材に設けた外側送風路用の開口を通じて外側送風路用のファンの送風を外側送風路に導くと共に、前記仕切部材に設けた内側送風路用の開口を通じて内側送風路用のファンの送風を内側送風路に導くように構成した低温ショーケースにおいて、
少なくとも前記外側送風路用の開口及び前記外側送風路の入口を前記断熱箱体の幅方向の全域に亘って形成したことを特徴とする低温ショーケース。A bottom air passage is provided at the bottom of the heat insulation box, and a double structure outer air passage and an inner air passage communicating with the bottom air passage are provided at the back of the heat insulation box, and the bottom air passage is substantially in the same plane. A plurality of fans for the outside air passage and the inside air passage are provided so as to be located, and these fans are respectively partitioned by the fan chamber , and at the outlet side of the plurality of fan chambers in the entire width direction of the heat insulating box. over the partition member is provided, the inner through the through opening of the partition member provided with a outer air passage guides the air blowing fan for the outer air passage to the outside air passage, an opening for the inner air passage provided in the partition member In a low-temperature showcase configured to guide the air flow from the fan for the air passage to the inner air passage,
A low-temperature showcase, wherein at least the opening for the outer air passage and the inlet of the outer air passage are formed over the entire region in the width direction of the heat insulating box .
JP09137799A 1999-03-31 1999-03-31 Low temperature showcase Expired - Lifetime JP4033576B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP09137799A JP4033576B2 (en) 1999-03-31 1999-03-31 Low temperature showcase
TW088121353A TW466326B (en) 1999-03-31 1999-12-07 Low temperature showcase
CNB001043749A CN1148136C (en) 1999-03-31 2000-03-23 Low temp. displaying cabinet
ES00302635T ES2219269T3 (en) 1999-03-31 2000-03-29 LOW TEMPERATURE SHOWCASE.
EP00302635A EP1044639B1 (en) 1999-03-31 2000-03-29 Low temperature showcase
KR1020000016378A KR100341984B1 (en) 1999-03-31 2000-03-30 Low-temperature showcase

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP09137799A JP4033576B2 (en) 1999-03-31 1999-03-31 Low temperature showcase

Publications (2)

Publication Number Publication Date
JP2000283629A JP2000283629A (en) 2000-10-13
JP4033576B2 true JP4033576B2 (en) 2008-01-16

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JP09137799A Expired - Lifetime JP4033576B2 (en) 1999-03-31 1999-03-31 Low temperature showcase

Country Status (6)

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

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 (en) * 2017-03-13 2023-04-21 广东维诺电器有限公司 Synchronous circulation double-temperature-area wine cabinet or refrigerator
CN107356038B (en) * 2017-07-18 2020-07-31 瑞安市建宇食品机械加工厂 Refrigeration equipment with automatic deicing and peculiar smell purification functions
CN209893729U (en) * 2018-04-13 2020-01-03 青岛海尔电冰箱有限公司 French type refrigerator

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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 (en) * 1981-12-21 1982-06-24 Hoogstraal AG, 8634 Hombrechtikon AIR CONDITIONED COUNTER
JPH02101368A (en) * 1988-10-06 1990-04-13 Sanyo Electric Co Ltd Method of operating low temperature show case

Also Published As

Publication number Publication date
CN1268656A (en) 2000-10-04
ES2219269T3 (en) 2004-12-01
TW466326B (en) 2001-12-01
EP1044639A3 (en) 2001-03-14
JP2000283629A (en) 2000-10-13
EP1044639B1 (en) 2004-06-02
EP1044639A2 (en) 2000-10-18
CN1148136C (en) 2004-05-05
KR20000063060A (en) 2000-10-25
KR100341984B1 (en) 2002-07-02

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