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WO2010000866A2 - Dispositif de refroidissement - Google Patents

Dispositif de refroidissement Download PDF

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Publication number
WO2010000866A2
WO2010000866A2 PCT/EP2009/058499 EP2009058499W WO2010000866A2 WO 2010000866 A2 WO2010000866 A2 WO 2010000866A2 EP 2009058499 W EP2009058499 W EP 2009058499W WO 2010000866 A2 WO2010000866 A2 WO 2010000866A2
Authority
WO
WIPO (PCT)
Prior art keywords
heater
door
evaporator
opened
temperature
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.)
Ceased
Application number
PCT/EP2009/058499
Other languages
English (en)
Other versions
WO2010000866A3 (fr
Inventor
Mehmet Oturak
Emre Arisoy
Veysi Ercan
Ilkin Tacan
Alper Mirza
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Priority to PL09772566T priority Critical patent/PL2313718T3/pl
Priority to EP09772566.7A priority patent/EP2313718B1/fr
Publication of WO2010000866A2 publication Critical patent/WO2010000866A2/fr
Publication of WO2010000866A3 publication Critical patent/WO2010000866A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/141—Removal by evaporation
    • F25D2321/1413—Removal by evaporation using heat from electric elements or using an electric field for enhancing removal
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/02—Sensors detecting door opening

Definitions

  • the present invention relates to a cooling device comprising a drip tray, wherein the water resulting from the defrost operation is collected.
  • the frost deposit formed on the evaporator in time results in a decrease of refrigeration performance.
  • the frost on the evaporator is melted by performing the defrost operation at certain intervals in order to avert this adverse effect.
  • the water from melting is collected in a drip tray. This drip tray needs to be discharged in due course. There are embodiments known in the technique where the drip tray is discharged by the user.
  • the cooling device comprises a sensor for determining the water level in the tray.
  • the heater is energized when the water level reaches above a certain level depending on the data received from the sensor.
  • a heat transfer element is provided between the drip tray and the evaporator.
  • a heat sensor is disposed on the said heat transfer element. The decision for energizing the drip tray heater and the work duration is given by means of the data received from the said heat sensor.
  • problems may arise such as operating the heater more than required or less than required and not starting to operate the heater in due time since the time when to start energizing and the operation duration of the heater for evaporating the water in the drip tray cannot be determined effectively. This results in the increase in energy consumption of the cooling device and lowers operational efficiency.
  • the aim of the present invention is the realization of a cooling device, wherein the energy consumption of the drip tray heater, is decreased.
  • the cooling device comprises a control unit that determines the operation duration of the heater based on the number of times the door has been opened for evaporating by heating the water collected in the drip tray as a result of melting the ice deposited on the evaporator in the defrost process.
  • the operation duration of the heater is determined by the control unit by multiplying the number of times the door has been opened by a constant time period saved in the memory by the producer.
  • the operation duration of the heater is determined by the control unit by multiplying the number of times the door has been opened by a variable time period calculated by using the operational and exterior environmental parameters. Accordingly, the operation duration of the heater is adjusted by taking into consideration the data, for example, whether the exterior environment temperature is low or high, or the duration of the previous defrost process and thereby the heater is operated for the most efficient duration.
  • control unit keeps in memory how many times the door has been opened since the heater is last operated or since a certain time period to assess the number of times the door is opened and determines the operation duration of the heater according to this data.
  • control unit resets to zero the number of times the door has been opened saved in the memory when the heater is operated.
  • the cooling device comprises at least one compressor for performing the refrigeration cycle and a single cabin.
  • the control unit energizes the heater whenever the compressor is not operating.
  • the cooling device comprises more than one cabin, more than one evaporator disposed in each of these cabins and a valve that controls transfer of the refrigerant to the evaporators.
  • the control unit energizes the heater in the drip tray of each evaporator when the valve is in the position of preventing refrigerant delivery to the respective cabin.
  • control unit energizes the heater when the evaporator temperature is within a certain interval.
  • the upper and lower limit values of the said interval are prerecorded in the memory of the control unit by the producer or are calculated by the control unit using the operational and/or exterior environmental parameters.
  • control unit does not energize the heater if the door is not opened at all since a certain time period.
  • control unit energizes the heater when all of the following conditions are met: the door is opened at least once since a certain time period, the refrigerant not being delivered to the cabin containing the heater and the evaporator temperature is within the desired interval.
  • the heater is operated at the right time and as long as required. Consequently, the energy wastage and loss of efficiency due to operating the heater more than necessary is prevented.
  • Figure 1 - is the schematic view of a cooling device.
  • Figure 2 - is the schematic view of another embodiment of the present invention.
  • Figure 3 - is the flow chart of the cooling device control method embodiment.
  • n door The number of times the door (3) has been opened
  • T evan W The minimum temperature of the evaporator (4) for operating the heater (6)
  • T evamax The maximum temperature of the evaporator (4) for operating the heater (6)
  • the cooling device (1) comprises at least one cabin (2) wherein articles to be cooled are placed, one or more doors (3) allowing access into the cabin
  • the cooling device (1) furthermore comprises a control unit (7) that determines the operation duration of the heater (6) (t heater ) depending on the number of times the door (3) has been opened (n door ).
  • the heater (6) is operated for a sufficient period of time for evaporating the water in the drip tray (5) thereby preventing energy wastage since the operation duration of the heater (6) (t heater ) is determined with respect to the number of times the door (3) has been opened (n door ) which considerably affects the rate of humidity in the cooling device (1).
  • control unit (7) determines the operation duration of the heater (6) (t heater ) by multiplying the number of times the door (3) has been opened (n door ) with a constant time period (t c ), for example 8 minutes, saved into the memory of the control unit (7) by the producer.
  • control unit (7) determines the operation duration of the heater (6) (t heater ) by multiplying the number of times the door (3) has been opened (n door ), with a time period (t v ) calculated by using the operational and exterior environmental parameters.
  • n door is the information about how many times the door (3) has been opened since the last time the heater (6) is energized and denergized.
  • the number of times the door (3) has been opened (n door ) that is saved in the memory of the control unit (7) is reset to zero when the heater (6) is operated.
  • the number of times the door (3) has been opened is information about how many times the door (3) has been opened since a certain time duration determined by the producer, for example in the last 7 hours, and saved in the memory of the control unit (7).
  • the cooling device (1) comprises a single cabin (2).
  • the control unit (7) energizes the heater (6) whenever the compressor (8) is not operating ( Figure 1).
  • the cooling device (1) comprises more than one cabin (2), at least one evaporator (4) disposed in each of these cabins (2), at least one drip tray (5) in each cabin (2), at least one heater (6) in each drip tray (5) and a valve (9) that determines the directing of the refrigerant pumped from the compressor (8) to the respective evaporators (4).
  • the control unit (7) energizes the heaters (6) whenever the valve (9) of the respective cabin (2) does not deliver the refrigerant thereto ( Figure 2).
  • the control unit (7) energizes the heater (6) when the evaporator (4) temperature (T eva ) is between the values of the minimum evaporator (4) temperature (T evam ⁇ n ) for operating the heater (6) and the maximum evaporator (4) temperature (T evamax ) for operating the heater (6).
  • the said limit values (T evam ⁇ n . T evamax ) are prerecorded in the memory of the control unit (7) by the producer or are calculated by the control unit (7) by using the operational and/or exterior environmental parameters.
  • control unit (7) does not energize the heater (6) when the door (3) is not opened at all since a certain time period, for example in the last 7 hours. Consequently, operating the heater (6) unnecessarily is prevented thereby conserving energy.
  • control unit (7) energizes the heater (6) when:
  • the evaporator (4) temperature (T eva ) is between the values of the minimum evaporator (4) temperature (T evam ⁇ n ) and the maximum evaporator (4) temperature (T evamax ) for operating the heater (6).
  • the operation of the heater (6) is controlled in the following manner:
  • the heater (6) is deenergized whereby the operation duration of the heater (6) (t heater ) and the number of times the door (3) has been opened (n door ) are reset to zero (106),

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Defrosting Systems (AREA)
  • Removal Of Water From Condensation And Defrosting (AREA)

Abstract

La présente invention concerne un dispositif de refroidissement (1) qui comporte au moins une cabine (2) dans laquelle des articles devant être refroidis sont placés, une ou plusieurs portes (3) donnant accès dans la cabine (2), au moins un évaporateur (4) qui refroidit le volume intérieur de la cabine (2) par absorption de l'énergie thermique, au moins une cuvette d'égouttage (5) pour récupérer l'eau résultant de la fonte du gel accumulé sur l'évaporateur (4), au moins un corps de chauffe (6) qui vaporise l'eau dans la cuvette d'égouttage (5) par chauffage et une unité de commande (7) qui détermine la durée de fonctionnement du corps de chauffe (6) (tcorps de chauffe).
PCT/EP2009/058499 2008-07-04 2009-07-06 Dispositif de refroidissement Ceased WO2010000866A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL09772566T PL2313718T3 (pl) 2008-07-04 2009-07-06 Urządzenie chłodzące
EP09772566.7A EP2313718B1 (fr) 2008-07-04 2009-07-06 Dispositif de refroidissement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200804968 2008-07-04
TRA2008/04968 2008-07-04

Publications (2)

Publication Number Publication Date
WO2010000866A2 true WO2010000866A2 (fr) 2010-01-07
WO2010000866A3 WO2010000866A3 (fr) 2010-03-04

Family

ID=41463090

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/058499 Ceased WO2010000866A2 (fr) 2008-07-04 2009-07-06 Dispositif de refroidissement

Country Status (3)

Country Link
EP (1) EP2313718B1 (fr)
PL (1) PL2313718T3 (fr)
WO (1) WO2010000866A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013000765A1 (fr) * 2011-06-29 2013-01-03 BSH Bosch und Siemens Hausgeräte GmbH Appareil de froid à bac d'évaporation et dispositif auxiliaire favorisant l'évaporation
WO2013000759A3 (fr) * 2011-06-29 2013-07-18 BSH Bosch und Siemens Hausgeräte GmbH Appareil de froid à bac d'évaporation et dispositif auxiliaire favorisant l'évaporation
WO2013000773A3 (fr) * 2011-06-29 2013-09-06 BSH Bosch und Siemens Hausgeräte GmbH Appareil de froid à bac d'évaporation et dispositif auxiliaire favorisant l'évaporation
DE102013221249A1 (de) 2013-10-21 2015-04-23 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit einer Verdunstungsschale

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114291441B (zh) * 2022-01-13 2023-06-06 安徽宏昌机电装备制造有限公司 航空机动保障方舱

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10208558A1 (de) * 2002-02-27 2003-09-04 Vasilios Zigaris Verdunstungswanne
DE102004012498A1 (de) * 2004-03-15 2005-10-06 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013000765A1 (fr) * 2011-06-29 2013-01-03 BSH Bosch und Siemens Hausgeräte GmbH Appareil de froid à bac d'évaporation et dispositif auxiliaire favorisant l'évaporation
WO2013000759A3 (fr) * 2011-06-29 2013-07-18 BSH Bosch und Siemens Hausgeräte GmbH Appareil de froid à bac d'évaporation et dispositif auxiliaire favorisant l'évaporation
WO2013000773A3 (fr) * 2011-06-29 2013-09-06 BSH Bosch und Siemens Hausgeräte GmbH Appareil de froid à bac d'évaporation et dispositif auxiliaire favorisant l'évaporation
DE102013221249A1 (de) 2013-10-21 2015-04-23 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit einer Verdunstungsschale
DE102013221249B4 (de) 2013-10-21 2023-07-27 BSH Hausgeräte GmbH Kältegerät mit einer Verdunstungsschale

Also Published As

Publication number Publication date
WO2010000866A3 (fr) 2010-03-04
PL2313718T3 (pl) 2018-02-28
EP2313718B1 (fr) 2017-09-06
EP2313718A2 (fr) 2011-04-27

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