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
• • 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
  • F25D2400/36—Visual displays
• • 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
  • F25D2500/00—Problems to be solved
  • F25D2500/04—Calculation of parameters
• • 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
• • 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
  • F25D2700/123—Sensors measuring the inside temperature more than one sensor measuring the inside temperature in a compartment

Definitions

• the present invention relates to a refrigerator and/or freezer with a cooled interior, with at least one temperature or temperature distribution prevailing in the cooled interior.
• Simple temperature controls for temperatures inside refrigerators and/or freezers are known from the prior art, with the control taking place on the basis of one or more temperature sensors.
• Interior spaces of refrigerators and/or freezers whose temperature is not regulated are also known. These interior spaces are designed in such a way that predetermined temperature limits in the interior are maintained under all operating conditions.
• the energetically optimal design is complex and difficult, especially due to the necessary measurements of energy consumption under at least two operating conditions, e.g. at least two different ambient temperatures.
• the present invention is based on the object of providing improved control and/or regulation of temperatures in refrigerators and/or freezers.
• the device has modeling means which are designed such that modeling of the temperature or temperature distribution can take place, the device having input means which are designed to input a target value and/or target range of the temperature or temperature distribution to enable a user.
• the device also preferably has means which are designed such that the temperature in the cooled interior can be regulated or controlled to the target value and/or target range.
• the modeled temperature preferably serves as a controlled variable.
• the cooled interior can affect the entire cooled interior of the refrigerator and/or freezer or only one compartment or compartment of the device. Each compartment or compartment can form a cooled interior.
• the target value of the average temperature can be specified for a compartment and at the same time the target values for the warmest and/or the coldest temperature can be specified.
• a stratification of temperatures can be created in a targeted manner.
• the refrigerator and/or freezer has one or more temperature sensors, which is or are designed and arranged to measure the temperature or temperature distribution, with the modeling taking into account measured values of the temperature sensor or sensors or that the modeling is carried out without taking into account measured values from the temperature sensor or sensors.
• a temperature sensor can be, for example, an air temperature sensor.
• the refrigerator and/or freezer does not have a temperature sensor in a compartment or a temperature zone and/or that the modeling takes place without taking measured values of a temperature sensor into account.
• a refrigerator and/or freezer with a control unit and a compartment is conceivable, in which the temperature can be set for the compartment that does not have a temperature sensor.
• the device has display means and/or that the modeling means are designed to determine the warmest and/or coldest temperature and/or a temperature in between in the cooled interior, wherein the display means are designed to determine the warmest and/or coldest temperature determined / or to display the coldest temperature and / or a determined temperature in between and / or a measured value from a temperature sensor.
• the display means are designed to display the determined warmest and/or coldest temperature and/or a determined temperature in between using color gradients and/or symbols.
• the average temperature of a compartment can be displayed on the basis of a measured value from a temperature sensor and at the same time the calculated or modeled warmest and / or coldest temperature in the compartment can be displayed.
• a refrigerator and/or freezer is conceivable in which the temperature of a compartment that does not have a temperature sensor, determined on the basis of calculations or modeling, is displayed.
• the device has an evaporator, with the cooled interior space being cooled by the evaporator and the device having a temperature sensor for an evaporator temperature, with no temperature sensor for the temperature in the cooled interior space being present.
• a refrigerator and/or freezer with a control unit in which the temperature can be set for a compartment that only has one sensor for the evaporator temperature.
• the refrigerator and/or freezer has several cooled interior spaces and/or that the input means are designed to enable a user to enter several target values and/or target ranges for several temperatures or temperature distributions and/or that the refrigerator and/or freezer has at least one temperature sensor less than the number of cooled interior spaces or the number of enterable target values and/or target areas.
• a refrigerator and/or freezer with a control unit and several compartments is conceivable, with a temperature being able to be set for each compartment on the control unit, with the device having at least one less temperature sensor than the temperatures that can be set or as compartments are available.
• a target value and/or target range of the temperature or temperature distribution is entered by a user by selecting from predetermined selection options.
• settings can be made using simplified selection options.
• the user can select the medium temperature and set an even temperature distribution, which can then be referred to as mode 1.
• the user can also specifically select a larger temperature stratification, for example in certain areas to maintain cold temperatures and warmer temperatures in other areas in the compartment.
• This device behavior can be represented on a user interface using color gradients or symbols.
• the cooled interior has several temperature zones.
• the temperature can be regulated by a model-based control algorithm.
• a device with temperature control using a model-based control algorithm preferably models the temperatures in all compartments.
• temperature control using a model-based control algorithm also allows the temperature to be regulated in a compartment that does not have a sensor for the air temperature.
• temperature sensors Due to lower demands on the positioning of temperature sensors, when controlling temperature using a model-based control algorithm, they can be mounted with shorter cable lengths in locations where they react with greater inertia and delay to changes in the air temperature in the interior. It would also be possible to integrate temperature sensors on other electronic components. In both cases there are cost advantages.
• the temperature stratification in a cooled interior can be controlled specifically by controlling the compressor and evaporator.
• Previously unregulated temperature zones such as 4 compartments, can also be included in the control.
• thermosensor For example, it may be possible to set temperatures for which there is no physical sensor.
• the average, coldest or warmest temperature in a compartment can be calculated at any time. This information can be used, for example, to regulate the temperature in a compartment or to prevent stored goods from freezing. Drinks can also be cooled quickly and safely.
• the temperature limit can be preset. Any competing temperature settings are preferably recognized and, in particular, taken into account on a user interface.
• the temperature can also be controlled in the sense that no control loop is run through.
• a first exemplary embodiment relates to a refrigerator and/or freezer with a cooled interior and an input means in the form of a display and/or buttons.
• a user can now use the input means to specify a target value, for example 5 °C, for the temperature in the cooled interior.
• the user can also specify a target range for the temperature, for example 2 °C to 7 °C.
• a temperature profile is then set according to the specified target range using a model-based control algorithm, with the temperature decreasing, for example, from top to bottom.
• temperature sensors are arranged in the cooled interior, with modeling means being able to calculate the warmest and/or coldest temperature in the cooled interior based on the measured values of these temperature sensors.
• temperatures can then be displayed on a display means, for example the display.
• the temperature distribution in the interior can be displayed using a color gradient, with blue colors representing a cold temperature and red colors representing a warm temperature.
• a strip that runs from bottom to top from blue to red is conceivable and shows the temperature stratification in relation to the height of the interior.
• Three-dimensional displays that show a three-dimensional display in this manner are also conceivable.
• a second exemplary embodiment relates to a refrigerator and/or freezer with a cooled interior and an input means in the form of a display and/or buttons.
• the cooled interior is a compartment of the refrigerator and/or freezer, with the temperature in the compartment not being measured by a sensor.
• the user can also specify a target value or a target range here, as described above.
• a temperature profile is then established in the cooled interior using a model-based control algorithm according to the specified target range without measuring the temperature in the interior.

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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)

Applications Claiming Priority (2)

Publications (1)

Family

ID=87074570

Family Applications (1)

Country Status (1)

Citations (4)

• 2023
  • 2023-07-04 EP EP23183192.6A patent/EP4306887A1/fr active Pending

Patent Citations (4)

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