WO2016081393A1 - Meuble présentoir réfrigéré du type à rideau d'air - Google Patents

Meuble présentoir réfrigéré du type à rideau d'air Download PDF

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Publication number
WO2016081393A1
WO2016081393A1 PCT/US2015/060965 US2015060965W WO2016081393A1 WO 2016081393 A1 WO2016081393 A1 WO 2016081393A1 US 2015060965 W US2015060965 W US 2015060965W WO 2016081393 A1 WO2016081393 A1 WO 2016081393A1
Authority
WO
WIPO (PCT)
Prior art keywords
air curtain
cold air
display cabinet
curtain type
refrigerated display
Prior art date
Application number
PCT/US2015/060965
Other languages
English (en)
Inventor
Chaochang Zhang
Qianli Fu
Huan HU
Qiong Liu
Gongpeng LAN
Original Assignee
Carrier Corporation
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 Carrier Corporation filed Critical Carrier Corporation
Publication of WO2016081393A1 publication Critical patent/WO2016081393A1/fr

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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
    • A47F3/0439—Cases or cabinets of the open type
    • A47F3/0443—Cases or cabinets of the open type with forced air circulation
    • A47F3/0447—Cases or cabinets of the open type with forced air circulation with air curtains

Definitions

  • the present utility model belongs to the technical field of refrigerated display and relates to an air curtain type refrigerated display cabinet, in particular to an air curtain type refrigerated display cabinet provided with cold air auxiliary passages.
  • Air curtain type refrigerated display cabinets are widely used in places such as supermarkets and can display various commodities which need to be refrigerated, so as to facilitate sales.
  • the air curtain type refrigerated display cabinets use cold air curtains (also cased as "cold curtains”) to isolate the internal portions thereof from external relative hot air and keep the internal temperature of the cabinets to be within a certain range so as to realize the refrigerated preservation effect of the commodities displayed therein.
  • One purpose of the present utility model is to improve the uniformity of the internal temperature of an air curtain type refrigerated display cabinet.
  • Another purpose of the present utility model is to improve the refrigeration effect of the hot spot region.
  • the present utility model provides an air curtain type refrigerated display cabinet, which comprises a cold air main passage for outputting a main cold air flow to an air curtain opening and substantially downwards forming a cold air curtain at the air curtain opening, wherein the air curtain type refrigerated display cabinet further comprises:
  • a cold air auxiliary passage arranged in a display rack of the air curtain type refrigerated display cabinet, wherein an inlet of the cold air auxiliary passage is connected with the cold air main passage and an outlet of the cold air auxiliary passage substantially faces to the hot spot region inside the air curtain type refrigerated display cabinet to complementally enhance the cold air curtain corresponding to the hot spot region.
  • the air curtain type refrigerated display cabinet comprises a plurality of layers of display racks, and the cold air auxiliary passage is arranged in the display rack closest to the hot spot region.
  • the cold air auxiliary passage is configured to be formed through a cold air auxiliary pipe.
  • the cold air auxiliary pipe is arranged on a bottom surface of the display rack closest to the hot spot region.
  • a supporting plate of the display rack closest to the hot spot region is arranged to be a structure with dual plates, and the cold air auxiliary passage is formed between the dual plates.
  • the air curtain type refrigerated display cabinet is a multi-side display cabinet.
  • the hot spot region is located at a corner of a bottom display region of the air curtain type refrigerated display cabinet.
  • the air curtain opening is arranged on a top plate of the air curtain type refrigerated display cabinet.
  • the cold air auxiliary passage is horizontally arranged.
  • one cold air auxiliary passage is arranged corresponding to each hot spot region.
  • the cold air curtain corresponding to the hot spot region can be enhanced, the pertinence is strong, the normal operation of the cold air curtain is not influenced on the whole, the uniformity of the internal temperature of the air curtain type refrigerated display cabinet is improved, the energy consumption is small, the cost is low, and the refrigerated preservation effect of commodities displayed in the hot spot region can be guaranteed.
  • FIG. 1 is a structural schematic view of an air curtain type refrigerated display cabinet according to a conventional embodiment.
  • Fig. 2 is a structural schematic view of an air curtain type refrigerated display cabinet according to one embodiment of the present utility model.
  • Fig. 3 is a schematic view of a sectional structure and an air path of the embodiment shown in Fig. 2.
  • Fig. 4 is a structural schematic view of a cold air auxiliary pipe according to one embodiment of the present utility model.
  • Fig. 5 is an enlarged view of a local structure of a position for installing the cold air auxiliary pipe in the air curtain type refrigerated cabinet in the embodiment shown in Fig. 2.
  • Fig. 1 is a structural schematic view of an air curtain type refrigerated display cabinet according to a conventional embodiment.
  • the air curtain type refrigerated display cabinet mainly comprises a body 11, a top plate 12, a plurality of display racks 13a, 13b and 13c, and a bottom display region 14.
  • the air curtain type refrigerated display cabinet 10 is a three-side display cabinet and is designed to be a substantially cuboid structure, wherein a cold air flow blown out from the top plate 12 forms a cold air curtain 15 and the cold air curtain 15 substantially encloses openings in three sides of the refrigerated display cabinet 10.
  • the cold air curtain 15 isolates the internal portion of the cabinet from external relative hot air and keeps the internal temperature of the cabinet to be within a certain range, so as to realize the refrigeration of commodities displayed in the internal display racks 13a, 13b and 13c and the bottom display region 14.
  • the temperature at the distant end of the cold air curtain 15, especially in the corner region of the bottom display region 14, is higher than the temperature of other regions in the cabinet, i.e., the "hot spot" region 19 in the present application is formed (as shown in Fig. 1).
  • This is usually a result caused by non-uniform air flow intensity of the cold air curtain 15 due to the design irregularity of the shape of the air curtain type refrigerated display cabinet 10 (such as corner design).
  • the distance from the cold air curtain 15 corresponding to the hot spot region 19 to the air curtain opening of the top plate 12 is relatively longer, and the corresponding cold air curtain 15 forms an air curtain corner, the cold air flow is therefore easily dispersed and thereby the air flow intensity is reduced.
  • the hot spot region 19 with temperature higher than that of other regions is formed.
  • the normal temperature easily exceeds a predetermined temperature value and it is difficult to guarantee the refrigeration effect of the displayed commodities.
  • Fig. 2 is a structural schematic view of an air curtain type refrigerated display cabinet according to one embodiment of the present utility model.
  • the air curtain type refrigerated display cabinet 20 can be a three-side display cabinet and the main body structure thereof is designed to be a substantially cuboid structure.
  • the air curtain type refrigerated display cabinet 20 is not limited to such structure type and the main body structure thereof can be specifically designed according to the space shape of the place occupied by the refrigerated display cabinet and the display demands of the commodities.
  • the air curtain type refrigerated display cabinet can also be a multi-side display cabinet such as a double-side display cabinet.
  • the air curtain type refrigerated display cabinet 20 comprises a body 21, and the body 21 is provided with a top plate 22, a plurality of display racks 23a, 23b and 23c in a layered design and a bottom display region 24, wherein the display racks 23 are arranged below the top plate 22 and are fixed on the body 21, the distance from the display rack 23a to the top plate 22 on which the air curtain opening 221 is arranged is the shortest, and the distance from the display rack 23c to the top plate 22 on which the air curtain opening 221 is arranged is the longest.
  • the layers of the display racks 23 are not limited to three layers as described in this embodiment.
  • FIG. 3 is a schematic view of a sectional structure and an air path of the embodiment shown in Fig. 2
  • Fig. 4 is a structural schematic view of a cold air auxiliary pipe according to one embodiment of the present utility model
  • Fig. 5 is an enlarged view of a local structure of a position for installing the cold air auxiliary pipe in the air curtain type refrigerated cabinet in the embodiment shown in Fig. 2.
  • the air curtain type refrigerated display cabinet 20 according to the embodiment of the present utility model will be described below in detail in combination with Figs. 2-5.
  • an air curtain opening 221 which is opened substantially downwards is arranged on a top plate 22.
  • a vertical cold air main passage 27 of the air curtain type refrigerated display cabinet 20 is communicated with the air curtain opening 221, a cold air flow which is cooled by an evaporator 28 to a predetermined temperature passes through the cold air main passage 27 and forms a main cold air flow and is output to the air curtain opening 221 such that a cold air curtain 25 in a shape shown in Fig.
  • the air curtain opening 221 is arranged close to the edge position of the periphery of the top plate 22 such that the formed cold air curtain 25 can substantially enclose openings in three sides of the refrigerated display cabinet 20, and display racks 23a, 23b and 23c are also enclosed by the cold air curtain 25 to realize the refrigeration effect of the internal space of the cabinet.
  • the cold air main passage 27 can be formed in a vertical supporting structure for fixing display racks 23, in which the evaporator 28 and a fan 29 used for forming a cold air flow circulation loop can also be arranged.
  • the cold air curtain 25 may form similar hot spot region 19 in the embodiment shown in Fig. 1 at corners of a bottom display region 24.
  • a cold air auxiliary pipe 26 is arranged in the display rack 23c closet to the hot spot region 19, i.e., in the display rack 23c which is furthest away from the air curtain opening 221, wherein one cold air auxiliary pipe 26 is arranged corresponding to each hot spot region 19.
  • each cold air auxiliary pipe 26 comprises an inlet 261 and an outlet 262, the cold air auxiliary pipe 26 is substantially horizontally fixed and disposed, the inlet 261 thereof is directly connected with the cold air main passage 27 of a rear wall portion, the outlet 262 thereof is substantially aligned to the hot spot region 19, i.e., aligned to a corner of the bottom display region, such that a small portion of the cold air flow of the cold air main passage 27 can be distributed to the cold air auxiliary pipe 26 to form an auxiliary cold air flow 251 blown to the hot spot region 19, and the auxiliary cold air flow 251 can well complementally enhance the cold air curtain 25 corresponding to the position of the hot spot region, enhance the cooling to the hot spot region 19, prevent the temperature thereof from being too high and enable the internal temperature of the cabinet to be more uniform.
  • the cold air auxiliary pipe 26 is substantively a cold air auxiliary passage, and the air flow rate thereof is far smaller than that of the cold air main passage 27.
  • the magnitude of the air flow rate of the cold air auxiliary pipe 26 can be set according to the magnitude of the deviation of the temperature of the hot spot region 19 relative to other regions in the cabinet, and the magnitude of the sectional area of the cold air auxiliary pipe 26 can also be designed according to the demand for the magnitude of the air flow rate.
  • the flow rate of cold air flowing out from the cold air auxiliary pipe 26 (i.e., the flow rate of the auxiliary cold air flow 251) is less than 20-10% of the cold air flow rate of the cold air main passage 27.
  • the cold air auxiliary pipe 26 is fixed on a bottom surface of the display rack 23c, i.e., is fixed on a reverse side of the side on which commodities are displayed, such that the overall appearance of the air curtain type refrigerated display cabinet 20 is not influenced.
  • the length of the cold air auxiliary pipe 26 is designed such that the cold air auxiliary pipe 26 does not stretch out of the display rack 23c.
  • the hot spot region refer to a region which is weakly cooled by the cold air curtain in the air curtain type refrigerated display cabinet and the temperature thereof is higher than the temperature of other regions in the cabinet by a certain predetermined value, such as 3 degrees Celsius.
  • the specific size, number and specific position of the hot spot region are not limited by the embodiment of the present utility model. For example, the number thereof can also be one or three.
  • the hot spot region 19 as shown in Fig. 2 is easily formed at the furthest end position of the cold air curtain where the air flow intensity is lower.
  • the cold air auxiliary passages can be embedded in the display rack 23c; the supporting plate of the display rack 23c can be specifically designed into a structure with dual plates and the cold air auxiliary passage is formed between the dual plates (not shown); and similarly, the inlet of the cold air auxiliary passage is communicated with the cold air main passage 27 and the outlet of the cold air auxiliary passage is substantially aligned to the hot spot region 19.
  • the cold air auxiliary passage is arranged in the display rack 23c corresponding to the hot spot region 19 to complementally enhance the cold air curtain 25 corresponding to the hot spot region 19, enhance the cooling effect and reduce the deviation of temperature of the hot spot region 19 relative to the temperature of other regions in the cabinet, such that the refrigerated preservation effect of commodities displayed in the hot spot region 19 can be guaranteed.
  • the corner of the bottom display region 24 of the air curtain type refrigerated display cabinet 20 can also obtain the substantially same refrigerated preservation effect.
  • the air flow rate is relatively small, the normal operation of the cold air curtain 25 is not influenced on the whole, the pertinence is strong, the uniformity of the internal temperature of the air curtain type refrigerated display cabinet is improved, the energy consumption is small and the cost is low.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Freezers Or Refrigerated Showcases (AREA)

Abstract

La présente invention concerne un meuble présentoir réfrigéré (20) du type à rideau d'air et appartient au domaine technique des présentoirs réfrigérés. Ce meuble présentoir réfrigéré (20) du type à rideau d'air comprend un passage auxiliaire d'air froid (26) agencé dans une étagère de présentation (23) d'un meuble présentoir réfrigéré (20) du type à rideau d'air, un orifice d'entrée (261) de ce passage auxiliaire d'air froid (26) étant relié à un passage principal d'air froid (27) et un orifice de sortie (262) du passage auxiliaire d'air froid (26) faisant sensiblement face à une région de point chaud (19) à l'intérieur du meuble présentoir réfrigéré (20) du type à rideau d'air, afin d'accroître de manière complémentaire un rideau d'air froid (25) correspondant à la région de point chaud (19). Ce meuble présentoir réfrigéré (20) du type à rideau d'air présente les avantages d'une bonne uniformité de la température intérieure, d'une faible consommation d'énergie, d'un bas coût, et peut garantir un effet de conservation réfrigérée des marchandises présentées dans la région de point chaud (19).
PCT/US2015/060965 2014-11-20 2015-11-17 Meuble présentoir réfrigéré du type à rideau d'air WO2016081393A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNCN201420698145.9 2014-11-20
CN201420698145.9U CN204427391U (zh) 2014-11-20 2014-11-20 一种风幕式冷藏陈列柜

Publications (1)

Publication Number Publication Date
WO2016081393A1 true WO2016081393A1 (fr) 2016-05-26

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PCT/US2015/060965 WO2016081393A1 (fr) 2014-11-20 2015-11-17 Meuble présentoir réfrigéré du type à rideau d'air

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CN (1) CN204427391U (fr)
WO (1) WO2016081393A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3531877B1 (fr) * 2016-10-31 2021-12-01 Carrier Corporation Armoire réfrigérée de vente
CN107616645A (zh) * 2017-10-19 2018-01-23 广东星星制冷设备有限公司 一种环形风幕展示柜
CN112334044B (zh) * 2018-04-12 2022-09-13 开利公司 冷藏销售柜
CN113749481A (zh) * 2021-09-24 2021-12-07 珠海格力电器股份有限公司 一种冷藏陈列柜及其控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392543A (en) * 1967-07-17 1968-07-16 Clark Equipment Co Separable-section refrigerated case
US3392544A (en) * 1967-04-24 1968-07-16 Clark Equipment Co Refrigerated case auxiliary duct structure
DE3701974A1 (de) * 1987-01-23 1988-08-04 Linde Ag Kuehlinsel
DE20114992U1 (de) * 2001-09-11 2001-11-15 Linde Ag, 65189 Wiesbaden Säulenförmiges Warenpräsentationsmöbel
EP2380465A1 (fr) * 2010-04-23 2011-10-26 Hussmann Corporation Présentoir réfrigéré doté de rideaux d'air

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392544A (en) * 1967-04-24 1968-07-16 Clark Equipment Co Refrigerated case auxiliary duct structure
US3392543A (en) * 1967-07-17 1968-07-16 Clark Equipment Co Separable-section refrigerated case
DE3701974A1 (de) * 1987-01-23 1988-08-04 Linde Ag Kuehlinsel
DE20114992U1 (de) * 2001-09-11 2001-11-15 Linde Ag, 65189 Wiesbaden Säulenförmiges Warenpräsentationsmöbel
EP2380465A1 (fr) * 2010-04-23 2011-10-26 Hussmann Corporation Présentoir réfrigéré doté de rideaux d'air

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