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CN109953563B - Double air curtain refrigeration showcase - Google Patents

Double air curtain refrigeration showcase Download PDF

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Publication number
CN109953563B
CN109953563B CN201910349782.2A CN201910349782A CN109953563B CN 109953563 B CN109953563 B CN 109953563B CN 201910349782 A CN201910349782 A CN 201910349782A CN 109953563 B CN109953563 B CN 109953563B
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CN
China
Prior art keywords
air
air outlet
plate
cabinet body
cavity channel
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.)
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Application number
CN201910349782.2A
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Chinese (zh)
Other versions
CN109953563A (en
Inventor
何家才
崔金鉴
刘珊珊
罗奇峰
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.)
Zhejiang Xingxing Refrigeration Co Ltd
Original Assignee
Zhejiang Xingxing Refrigeration 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.)
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Publication date
Application filed by Zhejiang Xingxing Refrigeration Co Ltd filed Critical Zhejiang Xingxing Refrigeration Co Ltd
Priority to CN201910349782.2A priority Critical patent/CN109953563B/en
Publication of CN109953563A publication Critical patent/CN109953563A/en
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Publication of CN109953563B publication Critical patent/CN109953563B/en
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Classifications

    • 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
    • A47F3/0439Cases or cabinets of the open type
    • A47F3/0443Cases or cabinets of the open type with forced air circulation
    • A47F3/0447Cases or cabinets of the open type with forced air circulation with air curtains
    • 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
    • A47F3/0495Spraying, trickling or humidifying means

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The application discloses a double-air-curtain refrigeration showcase, which comprises a case body, wherein an air outlet cavity channel is arranged in the case body, an air outlet plate with holes is arranged at an air outlet of the air outlet cavity channel, air in the air outlet cavity channel leaves the air outlet cavity channel through the air outlet plate, and the double-air-curtain refrigeration showcase also comprises an air-curtain extrusion member, wherein the air-curtain extrusion member is arranged at the air outlet of the air outlet cavity channel, and is positioned in the air outlet cavity channel, and a rotary air channel is formed between the air-curtain extrusion member and part of the air outlet plate; a part of holes on the air outlet plate are communicated with the air outlet cavity channel, and the other part of holes on the air outlet cavity channel are communicated with the rotary air channel; when the air leaves the air outlet cavity, one part of the air directly leaves from the holes on the air outlet plate to form inner side air flow, and the other part of the air leaves from the holes on the air outlet plate to form outer side air flow after entering the whirling air channel to whirl, wherein the flow speed of the inner side air flow is higher than that of the outer side air flow.

Description

Double air curtain refrigeration showcase
Technical Field
The invention relates to the field of refrigeration appliances, in particular to a double-air-curtain refrigeration showcase.
Background
The refrigeration showcase is widely applied to displaying goods needing refrigeration, the structure of the refrigeration showcase is shown in the attached drawings 1 and 2, the main body of the refrigeration showcase is a cabinet body (4), an air return opening (1), an evaporation fan (2) and an evaporator (3) are arranged in the cabinet body, when outside air enters the cabinet body (4) from the air return opening (1), the outside air sequentially passes through the evaporation fan (2) and the evaporator (3), then enters an air outlet cavity channel (402) formed between an inner side plate (401) and an outer side plate (403), an air outlet plate (6) with holes is arranged at the air outlet opening of the air outlet cavity channel (402), the contact end of the air outlet plate (6) and the inner side plate (401) is an inner contact end (404), the contact end of the air outlet plate (6) and the outer side plate is an outer contact end (405), the inner contact end (404) and the outer contact end (405) are airtight, the air in the air outlet cavity channel (402) leaves from the holes on the air outlet plate (6) and then downwards, and finally returns to the inside of the cabinet body (4). The flow direction of the gas during operation of the whole device is shown by the arrows in figure 1.
In the refrigeration showcase, an air curtain is formed by the air flow outside the case body, and is used for cooling the goods on the display plate (5), but the air flow in the air curtain is deviated from inside to outside in the process of blowing from top to bottom, namely, as shown in the figure 1, the goods on the display plate (5) cannot blow cold air, and the refrigeration effect is poor.
Disclosure of Invention
The invention provides a double-air-curtain refrigeration showcase aiming at the problems.
The technical scheme adopted by the invention is as follows:
the double-air-curtain refrigeration display cabinet comprises a cabinet body, wherein an air outlet cavity channel is arranged in the cabinet body, an air outlet plate with holes is arranged at an air outlet of the air outlet cavity channel, air in the air outlet cavity channel leaves the air outlet cavity channel through the air outlet plate, and the double-air-curtain refrigeration display cabinet further comprises an air-curtain extrusion member which is arranged at the air outlet of the air outlet cavity channel and is positioned in the air outlet cavity channel, and a rotary air channel is formed between the air-curtain extrusion member and part of the air outlet plate; a part of holes on the air outlet plate are communicated with the air outlet cavity channel, and the other part of holes on the air outlet cavity channel are communicated with the rotary air channel; when the air leaves the air outlet cavity, one part of the air directly leaves from the holes on the air outlet plate to form inner side air flow, and the other part of the air leaves from the holes on the air outlet plate to form outer side air flow after entering the whirling air channel to whirl, wherein the flow speed of the inner side air flow is higher than that of the outer side air flow.
It should be noted that, in this case, the inner air flow refers to the air flow near the cabinet, and the outer air flow refers to the air flow not near the cabinet.
In this device, through the combined action of air curtain extrusion component and air-out board for the gas in the air-out chamber passageway has formed two air current that the wind speed is different and has left respectively, wherein because the wind speed of inboard air current is big, the wind speed of outside air current is little, according to the pressure differential principle, when two air currents respectively blow down from last, inboard air current can attract outside air current to inboard, and outside air current can further extrude inboard air current to be close to towards the cabinet body simultaneously, so just so make two air currents all be close to the cabinet body, just so can play good cold blow cooling to the internal goods of cabinet.
The device is through the effect of air curtain extrusion component and air-out board for two air current that the velocity of flow is different has been formed in the air outlet department of air-out chamber way, and the pressure difference that utilizes different air currents makes two air current cabinet body be close to, and is better to the cold blowing effect of goods on the display board.
Optionally, the air curtain extrusion component is a T-shaped air curtain extrusion component, and the air curtain extrusion component is clamped between the air outlet plate and the outer side plate of the cabinet body.
Optionally, the diameter of the hole of the air outlet plate is 6mm, and the parallel distance between the air curtain extrusion member and the air outlet plate is 10mm.
The parallel distance between the air curtain extrusion component and the air outlet plate is the height of the rotary air duct.
Optionally, the air conditioner further comprises a cross air hole, wherein the cross air hole is arranged on an inner plate of the cabinet body, and is communicated with the air outlet cavity channel, and when air flows in the air outlet cavity channel, part of air in the air outlet cavity channel forms a cross blowing air flow through the cross air hole.
The cross blowing air flow is approximately perpendicular to the inner side air flow and the outer side air flow, the part of the cross blowing air flow can directly blow the goods on the display plate, the goods can be directly cooled by cold blowing, and the goods on the display plate can be cooled from two directions by combining the inner side air flow and the outer side air flow from top to bottom.
Optionally, the cabinet body is provided with the return air inlet, and the gas in the external follow the return air inlet gets into the air-out cavity way of the cabinet body, the internal evaporation fan and the evaporimeter of being provided with of cabinet, evaporation fan and evaporimeter are used for gaseous cooling.
The above design is a prior art conventional technology for refrigerated display cases.
The beneficial effects of the invention are as follows:
1. through the action of the air curtain extrusion component and the air outlet plate, two air flows with different flow rates are formed at the air outlet of the air outlet cavity channel, and the two air flows are close to the cabinet body by utilizing the pressure difference of the different air flows, so that the cold blowing effect on goods on the display plate is better;
2. through set up the cross wind hole on the interior panel for the air current has been formed in the cabinet body, has realized carrying out the cold blow cooling of two directions to the goods through air current, inboard air current and outside air current of cross blowing.
Description of the drawings:
FIG. 1 is a schematic illustration of the construction of a display case;
FIG. 2 is an enlarged schematic diagram of FIG. 1 at A;
FIG. 3 is a schematic illustration of the structure of a double air curtain refrigerated display case;
FIG. 4 is an enlarged schematic diagram at B in FIG. 3;
FIG. 5 is an enlarged schematic diagram of FIG. 3 at C;
fig. 6 is an enlarged schematic diagram at D in fig. 3.
The reference numerals in the drawings are as follows: 1. the air conditioner comprises an air return opening, 2, an evaporation fan, 3, an evaporator, 4, a cabinet body, 401, an inner side plate, 402, an air outlet channel, 403, an outer side plate, 404, an inner contact end, 405, an outer contact end, 406, a rotary air duct, 407, a horizontal air hole, 5, a display plate, 6, an air outlet plate, 701, horizontal blowing air flow, 702, inner side air flow, 703, outer side air flow, 8, an air curtain extrusion member, 9 and a support piece.
The specific embodiment is as follows:
the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 3, fig. 4 and fig. 5, a double-air-curtain refrigeration showcase comprises a case body 4, wherein an air outlet channel 402 is arranged in the case body 4, an air outlet plate 6 with holes is arranged at the air outlet of the air outlet channel 402, air in the air outlet channel 402 leaves the air outlet channel 402 through the air outlet plate 6, the double-air-curtain refrigeration showcase further comprises an air-curtain extrusion member 8, the air-curtain extrusion member 8 is arranged at the air outlet of the air outlet channel 402, the air-curtain extrusion member 8 is positioned in the air outlet channel 402, and a rotary air channel 406 is formed between the air-curtain extrusion member 8 and part of the air outlet plate 6; a part of holes on the air outlet plate 6 are communicated with the air outlet cavity channel 402, and the other part of holes on the air outlet cavity channel 402 are communicated with the rotary air channel 406; when the air leaves the air outlet cavity 402, a part of the air directly leaves from the holes on the air outlet plate 6 to form an inner air flow 702, and the other part of the air leaves from the holes on the air outlet plate 6 to form an outer air flow 703 after entering the whirl air channel 406 to whirl, wherein the flow speed of the inner air flow is higher than that of the outer air flow 703.
It should be noted that, in this case, the inner air flow 702 refers to the air flow near the cabinet, and the outer air flow 703 refers to the air flow not near the cabinet.
In this device, through the combined action of air curtain extrusion component 8 and air-out board 6, the gas in the air-out chamber passageway 402 has formed two air current that the wind speed is different and has left respectively, wherein because the wind speed of inboard air current is beaten, the wind speed of outside air current 703 is little, according to the differential pressure principle, when two air currents blow down from top to bottom respectively, inboard air current 702 can attract outside air current 703 to inboard, and colleague outside air current 703 can further extrude inboard air current 702 to be close to the cabinet body, just so make two air currents all be close to the cabinet body, just so can play good cold blowing cooling to the goods in the cabinet body.
The device is through the effect of air curtain extrusion component 8 and air-out plate 6 for two air current that the velocity of flow is different has been formed in the air outlet department of air-out chamber passageway 402, and the pressure difference that utilizes different air currents makes two air current cabinet body be close to, and is better to the cold blowing effect of the goods on the fly leaf.
As shown in fig. 3, 4 and 5, the air curtain pressing member 8 is a T-shaped air curtain pressing member 8, and the air curtain pressing member 8 is clamped between the air outlet plate 6 and the outer side plate 403 of the cabinet.
As shown in fig. 3, 4 and 5, the diameter of the hole of the air outlet plate 6 is 6mm, and the parallel distance between the air curtain pressing member 8 and the air outlet plate 6 is 10mm.
The parallel distance between the air curtain extrusion member 8 and the air outlet plate 6 is the height of the rotary air duct 406.
As shown in fig. 3, fig. 4 and fig. 5, the air conditioner further comprises a cross air hole 407, the cross air hole 407 is arranged on the inner plate of the cabinet body, the cross air hole 407 is communicated with the air outlet cavity channel 402, and when air flows into the air outlet cavity channel 402, part of air in the air outlet cavity channel 402 forms a cross air flow 701 through the cross air hole 407.
The cross blowing air flow 701 is approximately perpendicular to the inner air flow 702 and the outer air flow 703, the part of the cross blowing air flow 701 can directly blow to the goods on the display board, the goods can be directly cooled by cold blowing, and the goods on the display board can be cooled from two directions by combining the inner air flow 702 and the outer air flow 703 from top to bottom.
As shown in fig. 4, the cross-blowing flow 701 is approximately parallel to the display plates 5 on the cabinet 4, and referring again to fig. 3, because each display plate 5 has a cross-blowing flow 701 approximately parallel thereto, the cross-blowing flow 701 above the cabinet has a small velocity, while the cross-blowing flow 701 below the cabinet has a large velocity and increases from top to bottom, which also explains why the inner side air flow 702 and the outer side air flow 703 are blown to the inside of the cabinet 4 when above the cabinet 4, and the inner side air flow 702 and the outer side air flow 703 are blown to the outside of the cabinet 4 when below the cabinet 4, because the velocity of the cross-blowing flow 701 is relatively small above the cabinet 4, the cross-blowing flow 701 has little influence on the inner side air flow 702 and the outer side air flow 703, and the cross-blowing flow 701 starts to gradually blow the inner side air flow 702 and the outer side air flow 703 to the outside of the cabinet 4 when approaching the lower side of the cabinet 4.
The effects of the inner air stream 702 and the outer air stream 703 are further described with reference to fig. 3, and the inner air stream 702 and the outer air stream 703 correspond to forming an air curtain on the cabinet 4, and the air curtain can enable a heater outside the cabinet 4 to enter the cabinet 4. The closer to the lower part of the cabinet 4, the less the cold blowing effect of the inner air stream 702 and the outer air stream 703 on the goods, the more the cold blowing effect is the more the cold blowing effect of the cross blowing stream 701.
As shown in fig. 3, fig. 4 and fig. 5, the cabinet body is provided with an air return opening 1, and an external body enters an air outlet cavity 402 of the cabinet body from the air return opening 1, and an evaporation fan 2 and an evaporator 3 are arranged in the cabinet body, wherein the evaporation fan 2 and the evaporator 3 are used for cooling gas.
The beneficial effects of the device are further stated with reference to fig. 5, one end of the air outlet plate 6 is tightly attached to the inner contact end 404 of the cabinet body 4, the other end of the air outlet plate 6 is tightly clamped on the air curtain extrusion member 8, and the air outlet plate 6 is practically not contacted with the supporting piece 9 of the cabinet body 4, so that the outer contact end 405 between the air outlet plate 6 and the cabinet body 4 is disconnected, and the cold bridge is disconnected, so that cold on the air outlet plate 6 is prevented from being transferred to the supporting piece 9, and the condensation phenomenon of the supporting piece 9 can be avoided.
The air curtain extrusion component 8 is preferably made of cyclopentane foam.
Referring to fig. 4, it is further stated why the inner airflow 702 and the outer airflow 703 occur, when the airflow flows through the air outlet of the air outlet channel 402, 80% of the airflow directly exits through the holes on the air outlet plate 6, and this part of the airflow is the inner airflow 702, while the remaining about 20% of the airflow enters the swirl duct 406 first, enters the swirl duct 406, swirls, and then enters the holes on the air outlet plate 6, and this part of the airflow is the outer airflow 703.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover all equivalent structures as modifications within the scope of the invention, either directly or indirectly, as may be contemplated by the present invention.

Claims (1)

1. The double-air-curtain refrigeration display cabinet comprises a cabinet body, wherein an air outlet cavity channel is arranged in the cabinet body, an air outlet plate with holes is arranged at an air outlet of the air outlet cavity channel, and air in the air outlet cavity channel leaves the air outlet cavity channel through the air outlet plate; a part of holes on the air outlet plate are communicated with the air outlet cavity channel, and the other part of holes on the air outlet cavity channel are communicated with the rotary air channel; when the gas leaves the air outlet cavity, part of the gas directly leaves from the holes on the air outlet plate to form inner side air flow, and the other part of the gas leaves from the holes on the air outlet plate to form outer side air flow after entering the whirling air duct to whirl, wherein the flow speed of the inner side air flow is higher than that of the outer side air flow;
one end of the air outlet plate is tightly closed with the inner contact end of the cabinet body, the other end of the air outlet plate is tightly clamped with an air curtain extrusion member, the air outlet plate is not contacted with the support piece of the cabinet body, and the outer contact end between the air outlet plate and the cabinet body is disconnected;
the air curtain extrusion component is a T-shaped air curtain extrusion component and is clamped between the air outlet plate and the outer side plate of the cabinet body;
the diameter of the hole of the air outlet plate is 6mm, and the parallel distance between the air curtain extrusion component and the air outlet plate is 10mm;
the air conditioner also comprises a cross air hole, wherein the cross air hole is arranged on an inner plate of the cabinet body and is communicated with the air outlet cavity channel, and when air flows in the air outlet cavity channel, part of air in the air outlet cavity channel forms cross blowing air flow through the cross air hole;
the cabinet body is provided with the return air inlet, and the external body is followed the air-out chamber way of the cabinet body is got into to the return air inlet, the internal evaporation fan and the evaporimeter of being provided with of cabinet, evaporation fan and evaporimeter are used for giving gas cooling.
CN201910349782.2A 2019-04-28 2019-04-28 Double air curtain refrigeration showcase Active CN109953563B (en)

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Application Number Priority Date Filing Date Title
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CN109953563A CN109953563A (en) 2019-07-02
CN109953563B true CN109953563B (en) 2024-04-02

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112336124A (en) * 2020-11-05 2021-02-09 浙江星星冷链集成股份有限公司 Energy-efficient two air curtain structure and clothes closet that has this structure
CN112361630A (en) * 2020-11-12 2021-02-12 浙江星星冷链集成股份有限公司 Frost-free efficient constant-temperature continuous operation refrigerating system
CN112369871B (en) * 2020-11-12 2022-02-01 浙江星星冷链集成股份有限公司 Refrigerated display cabinet with open-type cabinet opening air return assembly

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CN208025920U (en) * 2018-03-16 2018-10-30 宣城市艺雪制冷设备有限公司 A kind of air curtain regulating device of refrigerated display case
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EP0722685A1 (en) * 1995-01-18 1996-07-24 Mc International Demountable refrigerator
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JPH11190585A (en) * 1997-12-26 1999-07-13 Sanyo Electric Co Ltd Freezing/refrigerating showcase
DE19839050C1 (en) * 1998-08-28 2000-02-17 Frigoblock Groskopf Gmbh Coolable body for a truck, trailer or semi-trailer
JP2000236998A (en) * 1999-02-19 2000-09-05 Fukushima Industries Corp Refrigerated showcase
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CN2671439Y (en) * 2003-12-20 2005-01-19 青岛市家用电器研究所 Vertical display cabinet with condensation draining structure
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CN204043277U (en) * 2014-08-25 2014-12-24 山东小鸭零售设备有限公司 A kind of refrigerator damping staged air curtain structure
CN104180584A (en) * 2014-08-25 2014-12-03 山东小鸭零售设备有限公司 Damping stepped air curtain structure of freezer
KR20160082105A (en) * 2014-12-30 2016-07-08 롯데알미늄 주식회사 Cold Showcase
CN206261281U (en) * 2016-04-27 2017-06-20 上海通用富士冷机有限公司 Commercial refrigeration showcase
CN206603511U (en) * 2016-12-20 2017-11-03 广州锐菱制冷设备有限公司 A kind of air curtain cabinet
CN206656531U (en) * 2017-03-17 2017-11-21 郑州凯雪冷链股份有限公司 The Anti-condensation air road air outlet structure of wind cabinet is found suitable for double air curtains
CN106820789A (en) * 2017-03-24 2017-06-13 宣城市艺雪制冷设备有限公司 A kind of vertical refrigerated display case of double evaporators
CN206875795U (en) * 2017-07-03 2018-01-12 宣城市艺雪制冷设备有限公司 A kind of vertical refrigerated display case with evaporation humidification air channel
WO2019016886A1 (en) * 2017-07-19 2019-01-24 三菱電機株式会社 Showcase
CN107328188A (en) * 2017-08-23 2017-11-07 孙志仁 A kind of fruit process low-temperature airflow rapid-curing cutback storehouse
CN207688496U (en) * 2017-12-30 2018-08-03 浙江星星冷链集成股份有限公司 A kind of vapo(u)rization system of refrigerator defrosting water
CN108294556A (en) * 2018-02-21 2018-07-20 河南千年冷链设备有限公司 A kind of vertical open refrigerated showcase with special air duct
CN208025920U (en) * 2018-03-16 2018-10-30 宣城市艺雪制冷设备有限公司 A kind of air curtain regulating device of refrigerated display case
CN209950872U (en) * 2019-04-28 2020-01-17 浙江星星冷链集成股份有限公司 Double air curtain refrigeration display cabinet

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