EP3447411A1 - Appareil de réfrigération et/ou de congélation - Google Patents

Appareil de réfrigération et/ou de congélation Download PDF

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Publication number
EP3447411A1
EP3447411A1 EP18189875.0A EP18189875A EP3447411A1 EP 3447411 A1 EP3447411 A1 EP 3447411A1 EP 18189875 A EP18189875 A EP 18189875A EP 3447411 A1 EP3447411 A1 EP 3447411A1
Authority
EP
European Patent Office
Prior art keywords
sensor
module
cooling
fan
refrigerant circuit
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Withdrawn
Application number
EP18189875.0A
Other languages
German (de)
English (en)
Inventor
Volker Friedmann
Michael Schick
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.)
Liebherr Hausgeraete Ochsenhausen GmbH
Original Assignee
Liebherr Hausgeraete Ochsenhausen 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
Priority claimed from DE102017126057.9A external-priority patent/DE102017126057A1/de
Application filed by Liebherr Hausgeraete Ochsenhausen GmbH filed Critical Liebherr Hausgeraete Ochsenhausen GmbH
Publication of EP3447411A1 publication Critical patent/EP3447411A1/fr
Withdrawn legal-status Critical Current

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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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control 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
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • F25D19/02—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors plug-in type
    • 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
    • F25D23/006—General constructional features for mounting refrigerating machinery components
    • 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
    • F25D23/04—Doors; Covers with special compartments, e.g. butter conditioners
    • 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
    • F25D23/028—Details
    • 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
    • F25D23/06—Walls
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/061—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation through special compartments
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply
    • F25D2317/0661—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply from the bottom
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/16—Convertible refrigerators
    • 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
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • 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
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/121—Sensors measuring the inside temperature of particular compartments
    • 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
    • F25D2700/16—Sensors measuring the temperature of products

Definitions

  • the present invention relates to a refrigerator and / or freezer with a device housing, in which a cooled interior is, as well as with a refrigerant circuit for cooling the interior.
  • sensors are arranged inside the refrigerated interior, e.g. record the actual temperature present there.
  • the sensors are arranged so that a value as representative as possible of the parameter to be measured is detected.
  • Temperature sensors are used e.g. installed in refrigerators in the middle area of the inner container or in freezers at the warmest point to be expected.
  • the supply lines to the sensors run through the heat insulation of the device housing, which is usually designed as foaming.
  • the present invention is therefore the object of developing a refrigerator and / or freezer of the type mentioned in such a way that its structure is simplified with respect to the sensor.
  • components of the refrigerant circuit are arranged in a module, and that sensors that are needed to operate the refrigerant circuit, are arranged exclusively in the module.
  • components of the refrigerant circuit preferably comprising a compressor, a condenser, a fan, a throttle device, such. a capillary, and an evaporator as an assembly, i. arranged as a module, i. in the form of a single assembly.
  • the sensors required for operating the refrigerant circuit are arranged on the module.
  • the sensors required for operating the refrigerant circuit are integrated into the module. This simplifies the design of the device, because breakthroughs on the inner container or a wiring omitted by the heat insulation.
  • the sensor or sensors required for operating the refrigerant circuit are preferably one or more temperature sensors for detecting a temperature actual value. This value is supplied to a control unit for controlling the temperature in the cooled interior. This operates the compressor as a function of the deviation between setpoint and actual value.
  • the refrigerant circuit Preferably, all components of the refrigerant circuit are arranged in the module. It is preferably the compressor, the condenser, a throttling element, such as e.g. a capillary, and the evaporator.
  • the invention is not limited to this type of refrigerant circuits, but includes any type of refrigeration device, such as a refrigerator. also a magnetic cooling.
  • the term "refrigerant circuit" is correspondingly broad.
  • the sensor may be, for example, a resistance sensor such as NTC, PTC or PT100, a semiconductor sensor, an IC (Integrated Circuit) or an infrared sensor.
  • the sensor is preferably oriented such that it detects the temperature in the cooled interior and / or the temperature of at least one installation element located in the cooled interior, in particular a storage floor or a door compartment.
  • sensors of the device are arranged in the module.
  • these may be, for example, sensors for detecting the humidity, sensors for detecting the position of the door, such as proximity sensors, etc.
  • a fan is provided which is arranged such that it promotes air from the cooled interior to the sensor.
  • the sensor or sensors are arranged on the module, it may be necessary to convey air, whose temperature, humidity, etc., is to be measured, to the sensor. If the module is located, for example, in the bottom region of the device or of the inner container, provision can be made for air to come from a middle or upper side Area of the inner container is conveyed to the sensor in order to detect a reading for the air can.
  • the fan may be part of the module or arranged separately from the module.
  • a fan may be provided, which is arranged to convey air through or through the evaporator of the refrigerant circuit, wherein the sensor is preferably arranged upstream of the evaporator and in front of the fan or between the evaporator and the fan in the flow direction of the air.
  • the evaporator and / or the sensor can be arranged on the suction side or on the pressure side of the fan.
  • the module is in the bottom region of the cooled interior or device housing, i. arranged the body of the device.
  • the module may basically include a first portion located within the cooled interior and having a second portion located outside the refrigerated interior.
  • the first section is e.g. the evaporator and in the second section e.g. the condenser and / or the compressor and / or a thawing tray.
  • the module can be designed so that it can be removed from the device. It can for example be inserted and extendable. The removability allows for servicing a particularly easy access to the components of the module.
  • the present invention further relates to a method for operating a refrigerator and / or freezer according to any one of the preceding claims, wherein the detection of a measured value by means of the sensor is such that a fan, which promotes air to the sensor is operated for a certain time, then the measured value is determined and then the fan is switched off again.
  • This measurement can be repeated after a certain time and / or after the occurrence of a certain event, in particular after the opening or closing of the door or other closure element are performed.
  • the single drawing shows a longitudinal section of the lower portion of a refrigerator and / or freezer according to the invention with the module arranged there.
  • the body of a refrigerator or freezer is shown, which defines a cooled interior 20 together with a pivotally arranged on the body door.
  • the body 10, i. the device housing has a rear wall R and a bottom wall B, wherein the bottom wall B does not extend over the entire depth T of the device.
  • the reference numeral 100 denotes a module which has all the components of the refrigerant circuit as well as all the electrical and electronic components including all the sensors of the device.
  • the body of the device has no electrical or electronic components and no sensors (apart from the module).
  • the module comprises a first section 101, which is located above the bottom wall B and thus within the cooled interior 20 and a second section 102, which is located below the bottom wall B and thus outside of the cooled interior 20.
  • the section 101 comprises the evaporator 40 for cooling the interior 20 and a sensor 30, which is designed as a temperature sensor.
  • the section 102 comprises the compressor 60, the condenser and a condensation water receiver 80 into which water is discharged via a line 70 from the evaporator 40 to the condensation water receiver, which is formed during defrosting of the device or the evaporator 40.
  • the sections 101 and 102 are interconnected by a third section 103 of the module which extends from the front of the base plate B and which has heat insulating properties. This applies mutatis mutandis to the bottom-side portion 101 'of the section 101, which is also carried out with a thermal insulation.
  • the conduit 70 extends from the evaporator 40 and between the bottom B of the body and the portion 103 to the condensation water receiver 80th
  • the senor 30 is located on the module 100, namely in the section 101 on its upper side.
  • the reference numeral 50 denotes a fan, which may be part of the module or may be arranged fixedly in the cooled interior or on the inner container.
  • the fan 50 draws in air via the evaporator 40.
  • the sensor 30 is arranged upstream of the evaporator 40 or upstream of the evaporator housing in the flow direction of the air.
  • the fan 30 thus supplies the sensor 30 with air from a region above the module, so that the sensor 30 determines a temperature value representative of the cooled interior.
  • the sensor 30 is thus in the supply air flow to the evaporator 40.
  • the fan 50 is turned on for a certain period of time and then the temperature value is measured.
  • the fan 50 is switched off again. This sequence of steps is performed at certain time intervals and / or in response to particular events, such as e.g. performed after a door opening.
  • the actual temperature value thus obtained is compared with a temperature set point, and based on this comparison, the compressor is put into operation or stopped to control the temperature to the set temperature value.
  • sensors which detect the temperature in a region spaced from the sensor, such as IR sensors.
  • the IR sensor may be oriented to detect the average temperature in the refrigerated interior or the temperature of an element, such as a shelf, located within the refrigerated interior.
  • a fan for supplying air to the sensor is not mandatory.
  • the module 100 is designed removable and can be pulled out according to the figure to the right and are separated in this way from the body.

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  • 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)
EP18189875.0A 2017-08-21 2018-08-21 Appareil de réfrigération et/ou de congélation Withdrawn EP3447411A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017119051 2017-08-21
DE102017126057.9A DE102017126057A1 (de) 2017-08-21 2017-11-08 Kühl- und/oder Gefriergerät

Publications (1)

Publication Number Publication Date
EP3447411A1 true EP3447411A1 (fr) 2019-02-27

Family

ID=63350373

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18189875.0A Withdrawn EP3447411A1 (fr) 2017-08-21 2018-08-21 Appareil de réfrigération et/ou de congélation

Country Status (1)

Country Link
EP (1) EP3447411A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712078A (en) * 1971-11-22 1973-01-23 Krispin Eng Ltd Refrigeration unit
DE3240124A1 (de) * 1982-10-29 1984-05-03 Sielaff Gmbh & Co Automatenbau Herrieden, 8801 Herrieden Selbstverkaeufer mit einem kuehlaggregat
US5086627A (en) * 1990-11-19 1992-02-11 Margaret Platt Borgen Removable cooling unit for display case and method for using same
DE102012017020A1 (de) * 2012-06-13 2013-12-19 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712078A (en) * 1971-11-22 1973-01-23 Krispin Eng Ltd Refrigeration unit
DE3240124A1 (de) * 1982-10-29 1984-05-03 Sielaff Gmbh & Co Automatenbau Herrieden, 8801 Herrieden Selbstverkaeufer mit einem kuehlaggregat
US5086627A (en) * 1990-11-19 1992-02-11 Margaret Platt Borgen Removable cooling unit for display case and method for using same
DE102012017020A1 (de) * 2012-06-13 2013-12-19 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät

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