WO2014191164A1 - Appareil frigorifique équipé d'un dispositif de chauffage plan - Google Patents

Appareil frigorifique équipé d'un dispositif de chauffage plan Download PDF

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Publication number
WO2014191164A1
WO2014191164A1 PCT/EP2014/059107 EP2014059107W WO2014191164A1 WO 2014191164 A1 WO2014191164 A1 WO 2014191164A1 EP 2014059107 W EP2014059107 W EP 2014059107W WO 2014191164 A1 WO2014191164 A1 WO 2014191164A1
Authority
WO
WIPO (PCT)
Prior art keywords
refrigerating appliance
temperature
room temperature
wall
temperature sensor
Prior art date
Application number
PCT/EP2014/059107
Other languages
German (de)
English (en)
Inventor
Daniel Bihr
Markus Hopf
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
Publication of WO2014191164A1 publication Critical patent/WO2014191164A1/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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F25D29/005—Mounting of control devices

Definitions

  • the present invention relates to a refrigerator with an outer wall, the one
  • Surface heating device for heating a surface of the outer wall comprises.
  • Kältegräten such as in built-in appliances in widths with high humidity and temperature, it is due to a low
  • Insulation wall thickness to a temperature difference between a surface of an outer wall of the refrigerator and the ambient temperature. Due to the lower temperature of the outer wall of the refrigerator, it may come at this point to a dew. The resulting condensation can lead to corrosion and damage to the affected areas. Permanent heating of the outer wall to prevent dew formation is energy inefficient.
  • the object is achieved by a refrigeration device having an outer wall, in which the outer wall comprises a surface heating device for heating a surface of the outer wall and the refrigeration device comprises a control device for controlling a temperature of the surface heating device.
  • the technical advantage is achieved that the heating of the outer wall can be made as needed and the energy efficiency of the refrigerator is increased. An uninterrupted and uncontrolled heating of the outer wall by means of a surface heater can be avoided thereby. By continuously monitoring the dew point and the surface temperature, energy savings are achieved.
  • Refrigeration device is protected from moisture and the resulting damage.
  • a refrigeration device Under a refrigeration device is in particular a household refrigeration appliance understood, ie a refrigerator, which is used for household management in households or catering trade, and in particular serves food and / or drinks at certain Store temperatures such as a refrigerator, a freezer, a fridge freezer, a freezer or a wine fridge.
  • a refrigerator which is used for household management in households or catering trade, and in particular serves food and / or drinks at certain Store temperatures such as a refrigerator, a freezer, a fridge freezer, a freezer or a wine fridge.
  • control device In an advantageous embodiment of the refrigeration device, the control device
  • the technical advantage is achieved that a predetermined temperature can be set on the surface of the outer wall.
  • the refrigeration device comprises a room temperature sensor for detecting a room temperature.
  • the refrigeration device can detect a room temperature, which can be used for further control of the surface heating device.
  • the refrigeration device comprises an air humidity sensor for detecting a humidity.
  • the refrigerator can detect a humidity that can be used to further control the surface heater.
  • the refrigeration device comprises a surface temperature sensor for detecting a temperature of the surface of the outer wall.
  • Refrigeration device can detect a temperature of the surface, which can be used for further control of the surface heating device.
  • Humidity sensor the surface temperature sensor and / or the
  • the technical advantage achieved that any data and control signals can be transmitted quickly from and to the sensors with a small number of lines.
  • the control device is designed to calculate a dew point temperature on the outer wall.
  • the technical advantage is achieved that the surface heating device can be controlled such that their temperature is always above the calculated
  • Dew point temperature is located and the energy required to prevent condensation remains even lower.
  • control device is designed to calculate the dew point temperature on the basis of a detected room temperature and / or a detected air humidity.
  • the control device is designed to switch on the surface heating device at a first room temperature and switch it off at a second room temperature, wherein the first room temperature is lower than the second room temperature.
  • the technical advantage is achieved that the number of turn-on and turn-off of the surface heater is reduced.
  • the control device is designed to turn on the surface heating device over a predetermined period of time. As a result, for example, the technical advantage is achieved that a reliable
  • the refrigeration device comprises a plurality of independently controllableêtnmos foundeden for heating the surface of the outer wall.
  • the technical advantage is achieved that specifically that surface heating device can be controlled, in its place a dew point temperature is reached. As a result, the energy efficiency of the refrigeration device can be further improved.
  • the refrigeration device comprises a power supply device for the surface heating device.
  • Power supply device with additional plug connection can be omitted.
  • Power supply device is formed, a low voltage or a
  • Fig. 1 is a schematic view of a refrigerator
  • FIG. 2 shows a schematic view of an outer wall with a surface heating device
  • FIG. 4 shows a housing for a room temperature sensor.
  • Fig. 1 shows a refrigerator representative of a refrigerator 100 with an upper refrigerator door and a lower refrigerator door.
  • the refrigerator is used for example for cooling food and includes a refrigerant circuit with an evaporator, a compressor, a condenser and a throttle body.
  • the evaporator is on Heat exchanger, in which after expansion, the liquid refrigerant through
  • the compressor is a mechanically operated component, the refrigerant vapor from the
  • Evaporator sucks and ejects at a higher pressure to the condenser.
  • Condenser is a heat exchanger in which, after compression, the vaporized refrigerant is released by heat release to an external cooling medium, i. the ambient air is liquefied.
  • the throttle body is a device for the continuous reduction of the pressure by cross-sectional constriction.
  • the refrigerant is a fluid used for heat transfer in the cryogenic system which absorbs heat at low temperatures and low pressure of the fluid and releases heat at higher temperature and pressure of the fluid, usually including changes in state of the fluid.
  • the refrigeration appliance 100 comprises an outer wall 103. Between the interior of the refrigeration appliance 100 and an external environment, a refrigeration appliance 100 is produced during operation
  • the surface temperature of the outer wall is below the room temperature. Therefore, there is a temperature delta from the surface of the outer wall 103 to the ambient temperature. This can especially with built-in appliances in
  • Isolation wall thickness be the case.
  • Heating the outer wall to prevent it from falling below the dew point is energy inefficient.
  • FIG. 2 shows a schematic view of the outer wall 103 with a surface heating device 105.
  • the surface heating device 105 is a large-area heater which can be realized, for example, by means of a foil heater with a meandering shape.
  • the refrigeration device 100 includes a control device 109 for electronically controlling the temperature of the surface 07 of the outer wall 103.
  • the controller 109 controls the surface heater 105 according to the given conditions such that the temperature of the surface 107 does not drop below the dew point temperature.
  • the outer wall 107 is, for example, a side wall of the refrigeration device 100.
  • the surface heater 105 may also be retrofitted by a customer service together with the control device 109.
  • the printed surface heater 105 is attached to the outer wall 107 by an assistant using an adhesive layer.
  • the refrigeration device 100 a For power supply, the refrigeration device 100 a
  • Power supply device such as a transformer or a power supply, for the surface heater 105 comprising a low voltage or a
  • Safety extra-low voltage to supply the surface heater 105 outputs can also be done via a separate power supply. In this case, a safety extra-low voltage can be achieved and can be dispensed with a double insulation and strain relief.
  • the coldest point of the outer wall can be determined by means of a thermal imaging camera. At this point, then exactly a printed
  • the control device 109 includes, for example, a microcontroller. In a control program for the control device 109, the switching time of the
  • Temperature and humidity sensor mounted in a housing allowing circulation of ambient air.
  • the position of the housing is located, for example, at the upper free attachment points for a door stop change. At this point, the influence of the measured value by the refrigeration device 100 is the lowest.
  • the refrigeration device 100 comprises a surface temperature sensor 1 1 1 for
  • Surface temperature sensor may be integrated into the printed surface heater 107.
  • the surface heater 105 may comprise printed measurement loops which act as integrated surface temperature sensor 11.
  • the refrigerator 100 may include a control loop for controlling the temperature based on a comparison between a set temperature and one of the
  • Surface temperature sensor 1 1 1 detected actual temperature include.
  • the measuring loops can be printed in any arrangement.
  • the sensors can be controlled via a serial bus, such as I2C, which uses an I2C level shifter for different power supplies.
  • Fig. 3 shows an outer wall with a plurality ofgutnclean noticeden 105-1 to 105-6.
  • Thehurnclean drivingen 105-1 to 105-6 are arranged in individual segments, each covering different areas of the outer wall 107.
  • Surface heating devices 105-1 to 105-6 are formed, for example, with individual PTC segments, so that a large-area heating with a plurality of segments is achieved.
  • the surface heating devices 105-1 to 105-6 are independently controllable. For each of the surface heaters 105-1 to 105-6, a separate one
  • Fig. 4 shows a housing 1 15 for a room temperature and humidity sensor.
  • the housing 1 15 is formed from plastic moldings and comprises a back plate 1 17 and a cover shell 121st
  • the room temperature sensor is used on the back plate 1 17 in a holder 123.
  • the back plate 1 17 laterally arranged latching arms 1 19 which engage laterally in the cover 121 when placing the cover 121.
  • the housing 1 15 is attached to a suitable location of the refrigeration device 100.
  • the cover shell 121 has elongated ventilation slots 125, so that
  • Ambient air can penetrate into the interior of the housing 1 15 and a circulation of the ambient air is made possible. As a result, an exact measurement of the room temperature and the humidity can be guaranteed. All of the features explained and shown in connection with individual embodiments of the invention may be provided in different combinations in the article according to the invention in order to simultaneously realize their advantageous effects.

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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

La présente invention concerne un appareil frigorifique (100) qui possède une paroi extérieure (103) comprenant un dispositif de chauffage plan (105) qui sert à chauffer une surface (107) de la paroi extérieure (103). L'appareil frigorifique (100) comprend un système de commande (109) servant à commander la température du dispositif de chauffage plan (105).
PCT/EP2014/059107 2013-05-27 2014-05-05 Appareil frigorifique équipé d'un dispositif de chauffage plan WO2014191164A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013209794.8A DE102013209794A1 (de) 2013-05-27 2013-05-27 Kältegerät mit einer Flächenheizeinrichtung
DE102013209794.8 2013-05-27

Publications (1)

Publication Number Publication Date
WO2014191164A1 true WO2014191164A1 (fr) 2014-12-04

Family

ID=50639541

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/059107 WO2014191164A1 (fr) 2013-05-27 2014-05-05 Appareil frigorifique équipé d'un dispositif de chauffage plan

Country Status (2)

Country Link
DE (1) DE102013209794A1 (fr)
WO (1) WO2014191164A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109945387B (zh) * 2019-03-28 2021-07-16 广东美的制冷设备有限公司 空调器的控制方法、空调器及计算机可读存储介质

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080115514A1 (en) * 2006-11-20 2008-05-22 Steimel John C Condensation prevention apparatus and method
JP2013044438A (ja) * 2011-08-22 2013-03-04 Hitachi Appliances Inc 冷蔵庫

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080115514A1 (en) * 2006-11-20 2008-05-22 Steimel John C Condensation prevention apparatus and method
JP2013044438A (ja) * 2011-08-22 2013-03-04 Hitachi Appliances Inc 冷蔵庫

Also Published As

Publication number Publication date
DE102013209794A1 (de) 2014-11-27

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