CN102379580B - Anti-condensing closed-type display cabinet - Google Patents

Anti-condensing closed-type display cabinet Download PDF

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Publication number
CN102379580B
CN102379580B CN201110231572.7A CN201110231572A CN102379580B CN 102379580 B CN102379580 B CN 102379580B CN 201110231572 A CN201110231572 A CN 201110231572A CN 102379580 B CN102379580 B CN 102379580B
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cold air
air duct
glass
air
cabinet door
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CN102379580A (en
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周俊杰
蒋小林
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Yindu Kitchen Equipment Co Ltd
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Yindu Kitchen Equipment Co Ltd
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  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Freezers Or Refrigerated Showcases (AREA)

Abstract

The invention relates to an anti-condensing closed-type display cabinet, which comprises a box body and a glass cabinet door. The glass cabinet door is installed on door frames. The door frames are fixedly connected with the box body. A refrigerating system is installed in the box body. An outer cold air duct and an inner cold air duct are installed in the box body. The first cold air duct outlets of the outer cold air duct are arranged in the box body at positions adjacent to the glass cabinet door, and the first cold air duct outlets and first cold air duct inlets are relatively arranged vertically to form an outer cold air curtain; and the second air duct outlets of the inner cold air duct are arranged in the box body at positions adjacent to the outer cold air curtain, and the second air duct outlets and second air duct inlets are relatively arranged vertically to form an inner cold air curtain. The invention provides the anti-condensing closed-type display cabinet which has a good refrigerating effect and can effectively prevent condensate from occurring on the external surface of the glass cabinet door at the same time.

Description

Anti-condensing closed-type display cabinet
Technical field
The invention belongs to art of refrigeration units, relate to a kind of closed-type display cabinet.
Background technology
Be convenient to client and select, in the shops such as large supermarket or convenience store, generally adopting showcase to display iced drink, refrigeration fresh food etc. needs commodity freezing or refrigeration.The showcase existing at present mainly contains two kinds: 1, open Showcase, that is: there is no a cabinet door, opening portion is provided with cold air curtain device, by air curtain, intercept cabinet internal-external heat exchange, thereby reach the effect to commodity cold insulation in showcase, air curtain can not completely cut off cabinet internal-external heat exchange completely, so open Showcase exists energy consumption higher, the shortcoming such as poor and in-cabinet temperature skewness of refrigeration; 2, closed-type display cabinet, that is: showcase is provided with glass cabinet door, so the refrigeration of closed-type display cabinet is better, energy consumption is relatively low, and health more, but owing to there being the temperature difference inside and outside showcase, often cause glass cabinet door outer surface to occur condensation phenomenon, impact is normally used.Solve glass cabinet door outer surface condensation problem, prior art is mainly by glass cabinet door outer surface is carried out to blowing hot-air from bottom to top, the shortcoming of this technology is as follows: along with the continuous rising of wind, constantly and glass door and environment generation heat exchange, hot blast temperature constantly reduces, thereby makes glass cabinet door top except revealing weak effect; Hot-flow flue design is outside at showcase, easily environment is produced to harmful effect.
Summary of the invention
For overcome the refrigeration of existing existing closed-type display cabinet poor, except revealing the deficiency of weak effect, the invention provides a kind of refrigeration and effectively prevent that the sticky Anti-condensing closed-type display cabinet revealing from appearring in glass cabinet door outer surface good time.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of Anti-condensing closed-type display cabinet, comprise casing and glass cabinet door, described glass cabinet door is arranged on doorframe, described doorframe is fixedly connected with described casing, refrigeration system is installed in described casing, outer cold air duct and internal layer cold air duct are installed in described casing, the first cold air duct air outlet of described outer cold air duct and the first cold air duct air inlet are all positioned at the casing near glass cabinet door place, and described the first cold air duct air outlet and described the first cold air duct air inlet are oppositely arranged up and down and form outer cold air curtain; The second cold air duct air outlet of described internal layer cold air duct and the second cold air duct air inlet are all positioned at the casing near outer cold air curtain, and described the second cold air duct air outlet and described the second cold air duct air inlet are oppositely arranged up and down and form internal layer cold air curtain; Described glass cabinet door comprises outermost layer glass, intermediate layer glass and innermost layer glass, between described outermost layer glass and intermediate layer glass, is the first air cavity, between described intermediate layer glass and innermost layer glass, is the second air cavity; Described refrigeration system comprises evaporating dish, compressor and condenser, the first fan and the second fan, described compressor, condenser and the second fan are positioned at heat air source chamber, described the second fan is arranged on condenser sidepiece, described heat air source chamber is communicated with hot-flow flue, the air outlet of described hot-flow flue is communicated with described the first air cavity bottom, the top of described the first air cavity is communicated with atmosphere, and described the second air cavity is closed cavity; Described evaporating dish and the first fan are positioned at cold wind wind regime chamber, and described outer cold air duct and internal layer cold air duct are all communicated with described cold wind wind regime chamber.
Mounting glass between described outer cold air curtain and internal layer cold air curtain, described glass can be arranged in casing conventionally, certainly, while taking out article during use, can first just glass be pulled down, or to leave and take in advance thing uncovered on glass; The object of mounting glass structure is in order effectively to isolate outer cold air curtain and internal layer cold air curtain.
Technical conceive of the present invention is: in casing, form 2 separate inside and outside two-layer cold air curtains, there is certain thermograde (temperature difference) in described inside and outside two-layer cold air curtain, reason is: evaporating dish ambient air temperature is-20 ℃ of left and right, because air channel structure is different, the first fan blows the cold wind that evaporating dish ambient cold air produces, enter different circulation air paths, outer cold air duct is near cabinet wall and glass cabinet door, due to heat exchange action, the temperature of outer cold wind is increased to-12 ℃ of left and right, because outer cooling air curtain has completely cut off heat exchange action, therefore the temperature of interior loop air curtain maintains-20 ℃ of left and right all the time, because internal layer cooling air curtain temperature is lower, effectively isolated showcase compartment interior and outside heat exchange, thereby improved the refrigeration of showcase, reduce energy consumption, simultaneously because outer cooling air curtain temperature is relatively high, effectively reduce the temperature difference of glass cabinet door surfaces externally and internally, can be used as one of measure of anti-glass cabinet surface condensation, described compressor and condenser can be arranged on bottom or other active components of showcase casing, and due to the condensation of condenser, its surrounding air is dry, and temperature is 40 ℃ of left and right, described the second fan, also centrifugal blower, is arranged on condenser sidepiece, and blow cool condenser around heat and dry air produces hot blast, described hot blast is as the wind regime of hot blast air curtain, through the hot-flow flue on casing, the hot-flow flue air inlet of the first air cavity on hot-flow flue air outlet and glass cabinet door, thereby in the first air cavity, form a hot blast air curtain, hot blast blows from bottom to top, finally the hot-flow flue air outlet by the first air cavity top is discharged in air, due to hot blast temperature even (40 ℃ of left and right), through heat exchange action, improved the temperature of glass cabinet door outermost layer glass surface, can very effectively solve the problem of showcase glass cabinet door surface condensation, simultaneously due to 2 cold air curtain heat-blocking actions in the second air cavity and casing, hot blast air curtain can not impact the refrigeration of showcase inside, this is the crucial innovative measure of the anti-glass cabinet of the present invention surface condensation.
Described glass cabinet door comprises 3 layers of glass and upper and lower 2 doorframes.The top and bottom of described 3 layers of glass are separately fixed on described 2 doorframes, 3 layers of glass have certain spacing between any two, form 2 air chambers, air chamber near showcase outside is defined as the first air cavity, air chamber near showcase inside is defined as the second air cavity, 3 layers of glass and 2 layer of air chambeies can effectively reduce the inside and outside heat exchange of showcase, can be used as one of energy-conservation, anti-condensation measure of the present invention.
Described control system mainly comprises showcase refrigeration controler and hot blast air curtain on-off controller.Described showcase refrigeration controler, for existing mature technology, is not repeating; Described hot blast air curtain on-off controller, comprise 1 showcase door switch sensor and corresponding control circuit board, when glass cabinet door is closed, sensor detects pass gate signal, thereby control signal is passed to control circuit board, opens hot blast air curtain generating, produces hot blast, eliminate condensation, glass cabinet door is opened, and sensor detects enabling signal, thereby control signal is passed to control circuit board, closes hot blast air curtain generating.
Beneficial effect of the present invention is mainly manifested in: 1, in showcase casing, be provided with inside and outside two-layer cold air curtain, outer air curtain temperature is relatively high, through heat exchange action, improved to a certain extent glass cabinet door internal surface temperature, reduce the temperature difference of glass cabinet door surfaces externally and internally, can be used as one of measure of anti-glass cabinet surface condensation; Internal layer cold air curtain temperature is lower, has effectively intercepted the heat exchange of showcase inside and outside, thereby has improved the refrigerating efficiency of showcase, has strengthened refrigeration, reduces energy consumption, has saved electricity consumption.
2, designed the hot-flow flue structure of compound glass cabinet door, adopt fan or centrifugal blower that compressor and condenser surrounding air are sent in air channel, thereby in glass cabinet door, form dry, a uniform hot blast air curtain, thereby effectively prevent that condensation phenomenon from appearring in glass cabinet door outer surface.
Accompanying drawing explanation
Fig. 1 is the structural representation of Anti-condensing closed-type display cabinet.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
With reference to Fig. 1, a kind of Anti-condensing closed-type display cabinet, comprises showcase casing 1, glass cabinet door 2, refrigeration system and control system.
In described showcase casing 1, be provided with outer cold air duct 11 and corresponding the first cold air duct air outlet 12, the first cold air duct air inlet 13 thereof; Internal layer cold air duct 14 and corresponding the second cold air duct air outlet 15, the second cold air duct air inlet 16 thereof; Hot-flow flue 17 and corresponding hot-flow flue air outlet 18 thereof.
Described glass cabinet door 2 comprises outermost layer glass 21, intermediate layer glass 22, innermost layer glass 23, upper door frame 24 and lower door frame 25.Described triplex glass 21, 22, 23 top and bottom are separately fixed at described 2 doorframes 24, on 25, between outermost layer glass 21 and intermediate layer glass 22, there is certain gap, be called the first air cavity 26, between intermediate layer glass 22 and innermost layer glass 23, there is certain gap, be called the second air cavity 27, 3 layers of glass and 2 layers of air cavity can effectively reduce the inside and outside heat exchange of showcase, can be used as of the present invention one energy-conservation, one of anti-condensation measure, but conventionally because showcase internal-external temperature difference is larger, only by above-mentioned measure, can not eliminate the condensation phenomenon on glass outer surface completely, the lower end of described the first air cavity 26 is provided with hot-flow flue air inlet 28, is communicated with casing hot-flow flue air outlet 18, and the first air cavity 26 upper ends are provided with hot-flow flue air outlet 29, and air cavity is communicated with atmosphere, the upper and lower side sealing of described the second air cavity 27, is not communicated with atmosphere, and in order to reduce heat transmission, the second air cavity 27 can be made vacuum.
Described refrigeration system mainly comprises evaporating dish 31, compressor 32, condenser 33, the first fan 34 and the second fan 35.Described evaporating dish 31 can be arranged on described showcase casing 1 top or other active components, the first described fan 34, also centrifugal blower, is arranged on evaporating dish 31 sidepieces, blows evaporating dish 31 ambient cold air and produces cold wind, described cold wind is as the wind regime of 2 cold air curtains, respectively through the first cold air duct air outlet 12, the second cold air duct air outlet 15, the first cold air duct air inlet 13, the second cold air duct air inlet 16, outer cold air duct 11 and internal layer cold air duct 14, thereby at the outer cold air curtain A of the interior formation of casing 1 and internal layer cold air curtain B, described two cold air curtains are separate, can adopt glass further to separate, there is certain thermograde (temperature difference) in described outer cold air curtain A and internal layer cold air curtain B, reason is: evaporating dish 31 ambient air temperatures are-20 ℃ of left and right, because outer cold air duct 11 is different with respect to the position of casing 1 from internal layer cold air duct 14, the first fan 34 blows the cold wind that evaporating dish 31 ambient cold air produce, enter different circulation air paths, outer cold air duct 11 is near casing 1 inwall and glass cabinet door 2, due to heat exchange action, the temperature of outer cold wind is increased to-12 ℃ of left and right, because outer cold air curtain A has completely cut off heat exchange action, therefore the temperature of interior loop cold air curtain B maintains-20 ℃ of left and right all the time, because internal layer cold air curtain B temperature is lower, effectively isolated showcase compartment interior and outside heat exchange, thereby improved the refrigeration of showcase, reduce energy consumption, simultaneously because outer cold air curtain A temperature is relatively high, effectively reduce the temperature difference of glass cabinet door 2 surfaces externally and internallies, can be used as one of measure of anti-glass cabinet 2 surperficial condensations, described compressor 32 and condenser 33 can be arranged on bottom or other active components of showcase casing 1, and due to the condensation of condenser 33, its surrounding air is dry, and temperature is 40 ℃ of left and right, described the second fan 35, also centrifugal blower, is arranged on condenser 33 sidepieces, and blow cool condenser 33 around heat and dry air produces hot blast, described hot blast is as the wind regime of hot blast air curtain C, through the hot-flow flue 17 on casing, the hot-flow flue air inlet 28 of the first air cavity 26 on hot-flow flue air outlet 18 and glass cabinet door, thereby in the first air cavity, form a hot blast air curtain C, hot blast blows from bottom to top, finally the hot-flow flue air outlet 29 by the first air cavity top is discharged in air, due to hot blast temperature even (40 ℃ of left and right), through heat exchange action, improved the temperature on glass cabinet door 2 outermost layer glass 21 surfaces, can very effectively solve the problem of showcase glass cabinet door 2 surperficial condensations, while is due to the heat-blocking action of the outer cold air curtain A in the second air cavity 27 and casing 1 and internal layer cold air curtain B, hot blast air curtain C can not impact the refrigeration of showcase inside.

Claims (2)

1. an Anti-condensing closed-type display cabinet, comprise casing and glass cabinet door, described glass cabinet door is arranged on doorframe, described doorframe is fixedly connected with described casing, refrigeration system is installed in described casing, it is characterized in that: outer cold air duct and internal layer cold air duct are installed in described casing, the first cold air duct air outlet of described outer cold air duct and the first cold air duct air inlet are all positioned at the casing near glass cabinet door place, and described the first cold air duct air outlet and described the first cold air duct air inlet are oppositely arranged up and down and form outer cold air curtain; The second cold air duct air outlet of described internal layer cold air duct and the second cold air duct air inlet are all positioned at the casing near outer cold air curtain, and described the second cold air duct air outlet and described the second cold air duct air inlet are oppositely arranged up and down and form internal layer cold air curtain; Described glass cabinet door comprises outermost layer glass, intermediate layer glass and innermost layer glass, between described outermost layer glass and intermediate layer glass, is the first air cavity, between described intermediate layer glass and innermost layer glass, is the second air cavity; Described refrigeration system comprises evaporating dish, compressor and condenser, the first fan and the second fan, described compressor, condenser and the second fan are positioned at heat air source chamber, described the second fan is arranged on condenser sidepiece, described heat air source chamber is communicated with hot-flow flue, the air outlet of described hot-flow flue is communicated with described the first air cavity bottom, the top of described the first air cavity is communicated with atmosphere, and described the second air cavity is closed cavity; The side of described evaporating dish is installed the first fan, and described evaporating dish and the first fan are positioned at cold wind wind regime chamber, and described outer cold air duct and internal layer cold air duct are all communicated with described cold wind wind regime chamber.
2. Anti-condensing closed-type display cabinet as claimed in claim 1, is characterized in that: mounting glass between described outer cold air curtain and internal layer cold air curtain.
CN201110231572.7A 2011-08-12 2011-08-12 Anti-condensing closed-type display cabinet Active CN102379580B (en)

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US11779134B2 (en) 2019-08-27 2023-10-10 Orrell Limited Door arrangement for refrigerated merchandising cabinet

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CN103575038A (en) * 2012-08-02 2014-02-12 开利公司 Frame and refrigerating device
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WO2017108101A1 (en) * 2015-12-22 2017-06-29 Carrier Corporation Refrigerated sales furniture
US10548415B2 (en) * 2016-02-04 2020-02-04 Panasonic Intellectual Property Management Co., Ltd. Showcase and control device
CN105650963B (en) * 2016-02-04 2018-05-15 海信容声(广东)冷柜有限公司 A kind of refrigerator and its control method
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CN107421220A (en) * 2017-07-14 2017-12-01 青岛海尔电冰箱有限公司 Built-in refrigerator
CN108266938B (en) * 2017-11-27 2024-03-15 中科美菱低温科技股份有限公司 Refrigerator lower front cover capable of automatically adjusting air outlet
CN108709902A (en) * 2018-05-04 2018-10-26 吴江市海拓仪器设备有限公司 A kind of wind-curtain type high-low temperature tester
CN111351286A (en) * 2018-12-24 2020-06-30 青岛海尔特种电冰柜有限公司 Refrigerator device
US11116333B2 (en) 2019-05-07 2021-09-14 Carrier Corporation Refrigerated display cabinet including microchannel heat exchangers
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CN110215129B (en) * 2019-05-29 2020-10-20 福建泉州台商投资区莉沓科技有限公司 Semiconductor multifunctional cold-hot food all-in-one machine utilizing air wall for heat preservation
CN110419910A (en) * 2019-08-28 2019-11-08 重庆市飞龙实木家俱有限公司 Open-type show cabinet
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