WO2009053241A2 - Appareil frigorifique - Google Patents

Appareil frigorifique Download PDF

Info

Publication number
WO2009053241A2
WO2009053241A2 PCT/EP2008/063386 EP2008063386W WO2009053241A2 WO 2009053241 A2 WO2009053241 A2 WO 2009053241A2 EP 2008063386 W EP2008063386 W EP 2008063386W WO 2009053241 A2 WO2009053241 A2 WO 2009053241A2
Authority
WO
WIPO (PCT)
Prior art keywords
compressor
fan
temperature
condenser
controller
Prior art date
Application number
PCT/EP2008/063386
Other languages
German (de)
English (en)
Other versions
WO2009053241A3 (fr
Inventor
Martin Buchstab
Hans Ihle
Holger Walliser
Original Assignee
BSH Bosch und Siemens Hausgeräte GmbH
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 BSH Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Priority to US12/682,785 priority Critical patent/US20100218523A1/en
Priority to CN200880113214A priority patent/CN101836064A/zh
Priority to EP08842340A priority patent/EP2205916A2/fr
Publication of WO2009053241A2 publication Critical patent/WO2009053241A2/fr
Publication of WO2009053241A3 publication Critical patent/WO2009053241A3/fr

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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/005—Arrangement or mounting of control or safety devices of safety devices
    • 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
    • F25D23/003—General constructional features for cooling refrigerating machinery
    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/008—Alarm devices
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2115—Temperatures of a compressor or the drive means therefor
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2116—Temperatures of a condenser
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/027—Condenser control arrangements

Definitions

  • the invention relates to a refrigerator according to the preamble of claim 1.
  • refrigerators which have a condenser, which has a relatively small volume.
  • the air surrounding the heat exchanger surfaces of the condenser must be constantly replaced.
  • a fan is usually used, which generates an air flow, so that the warm, heated to the exchanger surfaces air is constantly replaced by cool fresh air.
  • these types of refrigerators is available from the given space a larger volume for the storage of refrigerated or frozen goods.
  • Refrigerators with a fan cooled condenser are very economical in energy consumption and work very reliable. Nevertheless, it can happen that the fan stops its operation. In this case, the air that surrounds the heat exchanger surfaces of the condenser heats up strongly because it is no longer replaced by cool fresh air. The heat exchange between refrigerant and ambient air is thereby severely limited. The consequence of this is that the temperature and pressure in the refrigeration cycle increase. As a result, the cooling capacity of the compressor drops and the temperature in the compartment to be cooled rises to impermissible levels. The runtime of the compressor can rise up to a so-called endurance run.
  • the stored refrigerated or frozen goods can spoil.
  • the refrigerator itself can be damaged considerably.
  • the compressor can be damaged because it is not designed for continuous operation. Due to the great heat that arises in the region of the condenser and can no longer be dissipated, in particular plastic parts that are mounted in the area can be deformed. With a water-conducting refrigeration device, it can even lead to leakage and water damage, since the water-carrying lines were usually made of plastic.
  • the invention is based on the object of a refrigeration device in which the condenser and / or the compressor cooled by a fan is cooled in such a way that such damage can be safely avoided.
  • the object is achieved according to the invention by a refrigeration device with the features of claim 1. Because the control of the refrigerator is constructed so that a failure of the fan can be detected, preventive measures can be taken before the refrigerator as such or the stored refrigerated goods, take corresponding damage.
  • the invention is applied to refrigerators in which the condenser is arranged in a machine room in the base of the refrigerator. Since the condenser is housed here in a room that has only one side opening to the environment, can be done without a fan hardly an exchange of air and a cooling of the condenser.
  • the compressor is housed in the engine room, so that the heat output of the condenser still comes to the heat output of the compressor. If there is a build-up of heat in the engine room, the compressor would be damaged very quickly not only by continuous operation but also by overheating. By the invention, such damage can be avoided in a simple manner.
  • the controller can, for example, check electrical parameters on the fan.
  • the failure of the fan could be detected very early in this way, even before the engine room has heated up. Countermeasures could thus also be initiated very early.
  • the controller is connected to a sensor via which the failure of the fan can be detected.
  • a flow sensor could be used. This sensor would also respond immediately, as soon as the air flow to cool the condenser is no longer moving. But it would not only detect a failure of the fan, but also, for example, a clogging of air ducts or Ventilation grilles.
  • a flow sensor is relatively expensive and expensive.
  • the senor is designed as a temperature sensor.
  • a very inexpensive NTC resistor or thermistor can be used, which reduces its resistance as the temperature rises.
  • the NTC resistor could be switched so that the controller receives a corresponding signal only when a predetermined temperature limit is exceeded.
  • the temperature sensor could be arranged on the outside of the refrigeration device in an area in which it is swept by the exiting from the engine room air.
  • the temperature sensor is therefore advantageously arranged directly inside the engine room and detects the prevailing temperature there. As soon as the temperature rises due to a failure of the fan, but also due to blockages in the air handling system, a corresponding signal is transmitted to the controller.
  • the temperature of the condenser and / or compressor can also be detected directly with the temperature sensor.
  • a temperature sensor can be attached directly to the housing of the condenser and / or compressor.
  • the failure of the fan is detected by exceeding a predeterminable limit temperature.
  • This limit temperature must be set so that not a failure of the fan is detected when, for example, by frequent opening of the door of the refrigerator or by storing a larger amount of still frozen or frozen goods, a high heat input occurs and thereby the heat at the Condenser and in the engine room over a period of time increases. Such occurrences must not be mistaken already be recognized as a failure of the fan.
  • the limit must be set so that no damage can be done by the prevailing in the engine room heat.
  • the compressor After exceeding the set limit temperature, the compressor is switched off. Usually, the fan is only operated when the compressor is in operation, since only through the condenser is discharged during compressor operation heat.
  • the compressor is normally operated until the preset temperature inside the refrigerator is reached. When reaching the limit temperature in the engine room, the compressor is switched off even if this preset temperature is not reached in the interior.
  • the controller After switching off the compressor will be carried out by natural convection in the engine room cooling. This cooling senses the control via the temperature sensor. If no cooling is detected by the controller within a predeterminable period of time, it is concluded from this fact that not the fan but the temperature sensor has failed. In this case, the controller restarts the compressor and restarts the normal control cycle. At the same time, the controller generates a message - for example on a display - which informs the user that the monitoring system is defective and that customer service must be informed.
  • the controller detects that the temperature in the engine room has dropped after the compressor has been switched off, it is assumed that the fan is defective or the air ducts are clogged. In this case, restarting the compressor would result in engine room overheating and the consequential damage described above.
  • the refrigeration device is therefore switched off by the controller.
  • an audible and / or visual warning signal is issued if the controller detects the failure of the fan.
  • the customer service must be notified very quickly, since the temperature in the interior of the refrigerator only for a few hours in one Be held in the area where no spoilage of the goods is to be feared.
  • Fig. 1 is a sketch of a refrigeration device according to the invention.
  • the refrigeration device 1 has an insulated interior 2. On the inside of the rear wall of the evaporator 4 is attached.
  • the electronic control 3 is located inside the insulation in the lid of the refrigerator.
  • the engine room 5 is formed.
  • the engine room 5 is separated from the interior 2 via an insulating layer.
  • the condenser 8 and the compressor 9 are mounted. In the embodiment shown here, these two components are arranged one above the other.
  • refrigerators are also known in which the condenser and the compressor are mounted side by side in the engine room.
  • the fan 6 is mounted so that it sucks air from the back of the refrigerator 1 and presses in the air duct not shown here in the engine room 5.
  • the air duct is constructed so that the sucked air is first passed through the condenser 8 and then via the compressor 9. Thereafter, the air next to the fan 6 again comes out of the engine room.
  • the temperature sensor 7 is arranged directly in front of the air outlet.
  • the gaseous refrigerant from the evaporator 4 is compressed and heated thereby. From the compressor 9, it flows into the condenser 8. Here, the refrigerant is cooled by the blown in by the fan 6 air and goes into the liquid state of aggregation. The liquid and cooled refrigerant flows into the evaporator, expands and goes into the gaseous state. This change of state of aggregation is accompanied by a strong cooling. The cold refrigerant is now able to absorb heat from the interior 2 of the refrigeration device 1. From the electronic controller 3, the compressor 9 is always activated when the temperature in the insulated interior 2 exceeds a preset maximum temperature.
  • the fan 6 is normally set by the controller 3 only in operation, although the compressor 9 is active. In most cases, however, the fan 6 is switched with a certain amount of wake, so that the heat generated by the compressor 9 and the condenser 8 can still be removed from the machine room 5 even after the compressor 9 has been switched off.
  • the temperature sensor 7 is provided. This gives a signal to the electronic control unit 3 as soon as the air inside the engine room 5 exceeds a limit temperature. The controller 3 then immediately switches off the compressor 9, regardless of whether the shutdown temperature in the interior 2 has already been reached. Even after switching off the compressor 9, the temperature sensor 7 is still monitored by the electronic control 3. Since the temperature in the engine compartment 5 should also slowly decrease when the compressor 9 is switched off, this temperature reduction should also be able to detect the temperature sensor 7. If no temperature reduction in the engine room 5 is measured by the temperature sensor 7 after a predetermined period of time, then the electronic control unit 3 detects a defect in the temperature sensor 7 firmly. Then the compressor 9 is started again and continue to operate until the shutdown temperature in the interior 2 of the refrigerator 1 is reached. For the user of the refrigerator 1, a message is generated in this case, which asks him to contact the customer service.
  • the electronic controller 3 detects a fault in the air circulation through the engine room 5. In most cases, this is a fault of the fan 6 responsible. However, blockages in the air duct, for example due to a large amount of dust, may also have formed. From the electronic control 3, the refrigeration device 1 is completely switched off in these cases, thereby preventing the damage already described.
  • a corresponding display is generated on a display, not shown in the drawing, which is normally mounted in the front of the lid directly in front of the electronic control unit 3.
  • this display would also be noticed too late by the user. Therefore, an additional acoustic signal is generated, which encourages the user to read the message on the display.
  • the customer must be notified immediately of the customer service, so that the error can be corrected in the next few hours. In this way, the spoiling of the stored goods can be prevented.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

L'invention concerne un appareil frigorifique (1) comprenant un circuit de refroidissement qui présente un compresseur (9), un condenseur (8) et un évaporateur (4). Ledit appareil frigorifique comprend également un ventilateur (6) pour refroidir le condenseur (8) et/ou le compresseur (9) et une commande (3). Selon l'invention, la commande (3) est conçue de sorte à permettre de déterminer une panne du ventilateur (6).
PCT/EP2008/063386 2007-10-26 2008-10-07 Appareil frigorifique WO2009053241A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/682,785 US20100218523A1 (en) 2007-10-26 2008-10-07 Refrigerator
CN200880113214A CN101836064A (zh) 2007-10-26 2008-10-07 冰箱
EP08842340A EP2205916A2 (fr) 2007-10-26 2008-10-07 Appareil frigorifique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007051341.2 2007-10-26
DE102007051341A DE102007051341A1 (de) 2007-10-26 2007-10-26 Kältegerät

Publications (2)

Publication Number Publication Date
WO2009053241A2 true WO2009053241A2 (fr) 2009-04-30
WO2009053241A3 WO2009053241A3 (fr) 2009-09-24

Family

ID=40490226

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/063386 WO2009053241A2 (fr) 2007-10-26 2008-10-07 Appareil frigorifique

Country Status (6)

Country Link
US (1) US20100218523A1 (fr)
EP (1) EP2205916A2 (fr)
CN (1) CN101836064A (fr)
DE (1) DE102007051341A1 (fr)
RU (1) RU2010119340A (fr)
WO (1) WO2009053241A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010089178A3 (fr) * 2009-02-06 2011-03-31 BSH Bosch und Siemens Hausgeräte GmbH Appareil de réfrigération pourvu d'un mode de fonctionnement d'urgence

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103353206A (zh) * 2013-07-26 2013-10-16 合肥美的电冰箱有限公司 冰箱及其的故障检测方法和控制方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07270020A (ja) 1994-03-31 1995-10-20 Toshiba Corp 冷蔵庫

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE835152C (de) * 1947-05-28 1952-03-27 Gen Motors Corp Vorrats- oder Kuehlbehaelter
JPH07305950A (ja) * 1994-05-11 1995-11-21 Matsushita Refrig Co Ltd 冷蔵庫
JP3116781B2 (ja) * 1995-09-11 2000-12-11 トヨタ自動車株式会社 ラジエータの冷却ファンシステムの異常検出装置
KR100497157B1 (ko) * 2002-06-08 2005-06-23 삼성전자주식회사 화장품 저장고 및 그 제어방법
KR100557099B1 (ko) * 2003-12-09 2006-03-03 엘지전자 주식회사 빌트인 냉장고의 방열장치
US7765818B2 (en) * 2006-05-30 2010-08-03 B/E Aerospace, Inc. Refrigeration unit and diagnostic method therefor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07270020A (ja) 1994-03-31 1995-10-20 Toshiba Corp 冷蔵庫

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010089178A3 (fr) * 2009-02-06 2011-03-31 BSH Bosch und Siemens Hausgeräte GmbH Appareil de réfrigération pourvu d'un mode de fonctionnement d'urgence

Also Published As

Publication number Publication date
EP2205916A2 (fr) 2010-07-14
WO2009053241A3 (fr) 2009-09-24
RU2010119340A (ru) 2011-12-10
CN101836064A (zh) 2010-09-15
US20100218523A1 (en) 2010-09-02
DE102007051341A1 (de) 2009-04-30

Similar Documents

Publication Publication Date Title
DE112016000555B4 (de) Klimatisierungsgerät
DE69722409T2 (de) Kältesystem
EP2946258B1 (fr) Procédé pour adapter la valeur de consigne de climatisation d'une piece d'un centre de traitement informatique
CN106813360B (zh) 多联机系统及其室内机的防冷风控制方法和装置
DE102009052484B4 (de) Wärmepumpenkreislaufvorrichtung
DE102007011114A1 (de) Kältegerät
EP2681979B1 (fr) Dispositif de refroidissement, en particulier dispositif de climatisation pour une installation informatique
DE102006061160A1 (de) Kältegerät und Verfahren zum Steuern eines Kältegeräts
EP2664877A2 (fr) Appareil de réfrigération et/ou de congélation
EP2205916A2 (fr) Appareil frigorifique
EP3705812B1 (fr) Pompe à chaleur air-eau
EP0602379B1 (fr) Réfrigérateur, en particulier réfrigérateur à plusieurs températures
DE102009000670B4 (de) Kältegerät mit Notfall-Betriebsmodus
EP1350068B1 (fr) Procede pour reguler un appareil de refroidissement
DE102010028950A1 (de) Vorrichtung zum Kühlen und Rechner-Racks
DE102012222240A1 (de) Mehrzonen-Kältegerät
EP3396262B1 (fr) Procédé et appareil de commande anti-coups de liquide pour système de climatisation et système de climatisation associé
WO2010060784A1 (fr) Appareil frigorifique comportant plusieurs compartiments de stockage
DE102008052952A1 (de) Kühl- und/oder Gefriergerät
AT502769B1 (de) Kühlsystem
EP2827081B1 (fr) Procédé de commande d'une pompe à chaleur
WO2013060611A2 (fr) Appareil de froid à bac d'évaporation et dispositif auxiliaire favorisant l'évaporation
EP2810003B1 (fr) Appareil réfrigérant à deux compartiments de stockage
EP2713233A2 (fr) Procédé de régulation d'une température ambiante, régulateur pour un dispositif de refroidissement et dispositif de refroidissement
EP0547398A2 (fr) Appareil frigorifique, en particulier une combinaison de réfrigérateur et de congélateur à circulation d'air pour l'usage ménager

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200880113214.2

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 12682785

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2008842340

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2010119340

Country of ref document: RU