EP3622231A1 - Absaugvorrichtung für ein kühlmöbel - Google Patents
Absaugvorrichtung für ein kühlmöbelInfo
- Publication number
- EP3622231A1 EP3622231A1 EP19712721.0A EP19712721A EP3622231A1 EP 3622231 A1 EP3622231 A1 EP 3622231A1 EP 19712721 A EP19712721 A EP 19712721A EP 3622231 A1 EP3622231 A1 EP 3622231A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suction
- cooling
- flow
- channel
- cabinet
- 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.)
- Withdrawn
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 20
- 238000000605 extraction Methods 0.000 title abstract description 9
- 238000009825 accumulation Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims description 49
- 238000000034 method Methods 0.000 claims description 10
- 239000002699 waste material Substances 0.000 claims description 7
- 239000002918 waste heat Substances 0.000 claims 3
- 238000005070 sampling Methods 0.000 claims 1
- 239000003570 air Substances 0.000 description 25
- 230000035508 accumulation Effects 0.000 description 8
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
Classifications
-
- 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
- F25D23/02—Doors; Covers
- F25D23/023—Air curtain closures
-
- 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
-
- 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
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/002—Details for cooling refrigerating machinery
- F25D2323/0026—Details for cooling refrigerating machinery characterised by the incoming air flow
- F25D2323/00264—Details for cooling refrigerating machinery characterised by the incoming air flow through the front bottom part
-
- 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
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/002—Details for cooling refrigerating machinery
- F25D2323/0027—Details for cooling refrigerating machinery characterised by the out-flowing air
- F25D2323/00272—Details for cooling refrigerating machinery characterised by the out-flowing air from the back top
Definitions
- the invention relates to an extraction device for a refrigerated cabinet for reducing an accumulation of cooled air flowing out of the refrigerated cabinet in a ground-level area in front of the refrigerated cabinets and a process that reduces this to collection.
- Refrigerated cabinets are used, for example, in supermarkets to provide refrigerated or frozen products. Chilled products, in particular, are preferably presented via an open removal side, ie, not coverable by a door or the like, and removed by the customer. At the same time, part of the cooled air exits the refrigerated cabinet via the open, customer-oriented discharge side and collects in front of the refrigerated cabinet in the area near the floor.
- the invention is therefore based on the object of providing a device with which an accumulation of cooled air in the area close to the floor in front of refrigerated cabinets with an open unloading side directed towards the customer can be significantly reduced. This object is achieved by the feature combination according to claim 1.
- a suction device for a refrigerator unit open at least on a withdrawal side for reducing an accumulation of cooled air flowing out of the refrigeration unit in a ground-level area in front of the refrigerated unit on its open withdrawal side, with a continuous suction channel and a suction or extraction unit.
- the Suction duct has an intake opening and an exhaust opening.
- the intake opening is aligned in the direction of the area near the bottom in front of the refrigeration unit, the discharge opening in a cooling furniture upper side area opposite the ground-level area, so that the cooled air flowing out of the refrigerated unit can be sucked out of the area near the floor and blown out on the upper part of the refrigerator compartment.
- the suction device generates the suction flow via the fan and sucks the air leaving the refrigeration unit before it collects in the near-ground area in front of the refrigeration unit as a kind of "cold air lake" in which the customers would have to stand.
- the suction flow is blown out in the top part of the refrigerator, i. in the vertical upper portion of the cabinet, for example, in the rear area on its upper side and thus in an area which has the maximum distance to standing in front of the refrigeration cabinet customers.
- the fan generating the suction flow is also arranged.
- the suction device can be integrated into the cooling unit or can be arranged on the cooling unit; in particular, an embodiment is preferred in which the suction channel is partially formed by the cooling unit.
- the refrigerated cabinets comprise a housing enclosing the cooling chamber up to the open withdrawal side.
- the suction duct is preferably installed along this housing, so that the suction flow is guided on the outside along the bottom side and rear wall side of the housing to the refrigerator.
- the suction opening of the suction channel preferably points to the open removal side and in the direction of the ground
- the heat-generating components of the thermal cycle protector are located on the rear side of the refrigerated cabinet. arranged.
- An embodiment of the suction device in which the suction channel is guided along the waste heat-generating components is advantageous, so that the suction flow characterized by cooled air passes by the waste heat-generating components and consequently the efficiency of the cooling cabinet can be improved.
- the suction via the suction opening of the suction channel is positively influenced if its average orientation with respect to a vertical height direction of the cooling cabinet is at an angle of 20-60 °, in particular 25-45 °.
- the cold air flow emerging from the open discharge side can be directly sucked off before it collects in front of the refrigeration unit in the area near the floor.
- the special orientation promotes the supply of cold air flow into the suction and ensures the same time that permanently air is sucked in from the near-ground area, so that possibly caused by external influences, such as during the filling of the cabinet furniture accumulations of cold air in front of the refrigerator can be resolved with.
- the exhaust device further comprises a controller and a temperature sensor in a further development.
- the temperature sensor is preferably placed on or in the suction channel to measure the temperature of the suction flow.
- the funded by the fan suction flow is adjustable via the controller in response to a measured temperature value of the suction flow and thus the air in the ground near themémö adjustable.
- the invention also encompasses the method of reducing the accumulation of cooled air flowing out of a refrigerated appliance in the vicinity of the floor in front of the refrigerated cabinet on the open removal side thereof, wherein the suction flow is generated by means of the suction device via the cooled air flowing out of the refrigerated cabinet from the ground Range sucks and blown out on the refrigerator furniture top area.
- the circulation flow can be passed through a heat exchanger and used as cooling air for the cooling chambers.
- the suction flow runs at least in sections parallel to the circulation flow of the cooling appliance generated via the blower.
- the suction channel is guided along waste heat-generating components of the thermal cycle of the cooling cabinet and the suction flow flows along the waste heat-generating components or the waste heat-generating construction flows over parts.
- the method is characterized in that the suction flow is controlled in terms of their volume flow via the controller and a temperature value, which is supplied by the temperature sensor arranged in or on the suction channel.
- the volume flow of the suction flow conveyed by the fan is less than or equal to the volume flow of the circulating flow conveyed by the fan.
- the suction flow acts mainly on the bo- near the cooling cabinet, without negatively influencing the circulation flow.
- a refrigerator comprises a housing, a cooling chamber for receiving to be cooled with an open withdrawal side, a continuous between the housing and the cooling chamber circulation channel in which the fan is arranged, which forms the circulation flow to the cooling chamber and the open
- the circulation channel has an inlet and an outlet on the removal side, which are aligned facing one another, wherein a suction device described above is arranged on the cooling furniture.
- the suction opening of the suction channel and the inlet of the circulation channel adjoin one another directly, with the suction opening of the suction channel in the area near the floor in front of the cooling cabinet and the inlet of the circulation channel in the direction of the open removal side of the Cooling furniture are aligned.
- the cooling furniture in one embodiment, characterized in that the housing determines at least one wall of the suction channel of the suction device.
- the suction device is thereby an integral part of the refrigerator.
- FIG. 1 is a schematic representation of a suction device to egg NEM refrigerated cabinets.
- FIG. 1 is an example by way of example. Shown is a refrigerated cabinet 20 in the form of standing on feet 41 on the floor cabinet with an open, directed to the customer removal side 21.
- the cooling cabinet 20 includes a housing 24 with an internal cooling chamber 23, which has several shelving units 28 for the presentation of products to be cooled is divided. Between the housing 24 and the cooling chamber 23 extends over three of the four sides of the circulation channel 25, in which the fan 12 for generating the circulation flow ZS and the heat exchanger 29 are arranged.
- the circulation flow ZS flows over from the downwardly directed outlet 27 to the vertically upwardly directed inlet 26
- Removal side 21 and thus the entire cooling chamber 23 Removal side 21 and thus the entire cooling chamber 23.
- the arrow P is shown that is discharged from the circulation flow ZS, but also from the cooling chamber 23 due to a temperature gradient cold outlet side to the surrounding air and outward in the direction of the near-ground area 10 flows in front of the refrigerator 20.
- the suction device 1 is arranged integrally on the cooling furniture 20 with the suction channel 2 extending continuously from the suction opening 3 on the removal side 21 to the exhaust opening 4 provided in the cooling furniture upper side region 5, the inner wall of the suction channel 2 being formed by the housing 24.
- the suction opening 3 of the suction channel 2 directly adjoins the inlet 26 in the circulation channel 25 and has an average orientation, which is opposite to a vertical at an angle a of 45 °.
- the inlet 26 and the suction port 3 are separated by the separator 26 '.
- the opening width of the intake opening is approximately 80 °.
- the fan 7 is arranged to generate the suction flow AS in the rear, ie the removal side 21 opposite,dearia- 5 and forms the exhaust opening 4 of the suction channel 2.
- the suction flow AS is generated, which from both Cooling chamber 23 exiting cooled air (arrow P) as well as in the ground-level region 10 located air sucks and blows out through the exhaust port 4.
- the suction channel 2 extends on the bottom side and back side parallel to the circulation channel 25 and past the waste heat-generating components of the cooling cabinet 20, shown here only by the heat exchanger 29. In addition, for example, even cooling grate overflows or flows around who.
- a temperature sensor and a controller for controlling the volume flow of the fan 7 in response to a temperature value, in particular the temperature value of the suction flow AS are used.
- the control can be integrated into the control of the volumetric flow of the blower 12 of the cooling cabinet 20, so that the two volume flows of the suction flow AS and of the circulation flow ZS are controlled in relation to one another.
- the volume flow of the suction flow AS conveyed by the fan 7 is smaller than the volume flow of the circulation flow ZS conveyed by the fan 12, so that the suction flow AS does not adversely affect the circulation flow ZS.
- the volume flow of the suction flow AS may also be temporarily greater than that of the circulation flow ZS, for example, if a significant cooling of the suction AS recognized and thus can be closed to an accumulation of cooled air in the ground area 10 in front of the refrigerator 10.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018112441.4A DE102018112441A1 (de) | 2018-05-24 | 2018-05-24 | Absaugvorrichtung für ein Kühlmöbel |
| PCT/EP2019/056569 WO2019223916A1 (de) | 2018-05-24 | 2019-03-15 | Absaugvorrichtung für ein kühlmöbel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3622231A1 true EP3622231A1 (de) | 2020-03-18 |
Family
ID=65783127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19712721.0A Withdrawn EP3622231A1 (de) | 2018-05-24 | 2019-03-15 | Absaugvorrichtung für ein kühlmöbel |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3622231A1 (de) |
| CN (1) | CN208653041U (de) |
| DE (1) | DE102018112441A1 (de) |
| WO (1) | WO2019223916A1 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1762159A1 (de) * | 2005-09-12 | 2007-03-14 | Johnson Controls - MC International | Verfahren un Vorrichtung zur Verbesserung des Betriebs von Kühlmöbeln |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3304736A (en) * | 1965-08-06 | 1967-02-21 | Emhart Corp | Refrigerated display case |
| JPH06241641A (ja) * | 1993-02-16 | 1994-09-02 | Fuji Electric Co Ltd | オープンショーケース |
| GB2422186B (en) * | 2004-12-06 | 2009-06-10 | Paul Scammell | Chilled product display and air supply system with free cooling |
| WO2014178312A1 (ja) * | 2013-04-30 | 2014-11-06 | 東芝キヤリア株式会社 | オープンショーケース |
| GB2549719B (en) * | 2016-04-25 | 2018-09-26 | Wirth Res Limited | An open refrigerated display case |
-
2018
- 2018-05-24 DE DE102018112441.4A patent/DE102018112441A1/de not_active Withdrawn
- 2018-07-02 CN CN201821036103.3U patent/CN208653041U/zh active Active
-
2019
- 2019-03-15 WO PCT/EP2019/056569 patent/WO2019223916A1/de not_active Ceased
- 2019-03-15 EP EP19712721.0A patent/EP3622231A1/de not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1762159A1 (de) * | 2005-09-12 | 2007-03-14 | Johnson Controls - MC International | Verfahren un Vorrichtung zur Verbesserung des Betriebs von Kühlmöbeln |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018112441A1 (de) | 2019-11-28 |
| WO2019223916A1 (de) | 2019-11-28 |
| CN208653041U (zh) | 2019-03-26 |
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