EP3982066A1 - Appareil de refroidissement et/ou de congélation - Google Patents

Appareil de refroidissement et/ou de congélation Download PDF

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Publication number
EP3982066A1
EP3982066A1 EP21200478.2A EP21200478A EP3982066A1 EP 3982066 A1 EP3982066 A1 EP 3982066A1 EP 21200478 A EP21200478 A EP 21200478A EP 3982066 A1 EP3982066 A1 EP 3982066A1
Authority
EP
European Patent Office
Prior art keywords
air
control unit
flow control
air flow
area
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.)
Pending
Application number
EP21200478.2A
Other languages
German (de)
English (en)
Inventor
Mario Geiss
Carolin Ries
Oliver Klatt
Bernd Lehmann
Werner Schad
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 DE102020131304.7A external-priority patent/DE102020131304A1/de
Application filed by Liebherr Hausgeraete Ochsenhausen GmbH filed Critical Liebherr Hausgeraete Ochsenhausen GmbH
Publication of EP3982066A1 publication Critical patent/EP3982066A1/fr
Pending 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements

Definitions

  • the present invention relates to a refrigerator and/or freezer with at least one refrigerated interior and with at least one area within the refrigerated interior and with a first and a second air duct, each of which has an air outlet which is arranged in such a way that air can flow through it into can be introduced into the said area.
  • the present task is therefore based on the task of further developing a refrigerator and/or freezer of the type mentioned at the outset such that the size of the usable space is as large as possible, while at the same time the desired air distribution remains guaranteed.
  • a common air flow control unit is provided, which is flow-connected to the air ducts or their outlets in such a way that air flows out of the air outlet(s) through the air flow control unit into the area of the cooled interior, with the air flow control unit comprising precisely one drive and is designed such that it can be adjusted into different positions by means of the drive, the air flow control unit also being designed such that the air flowing into the area from the air ducts varies depending on the position of the air flow control unit.
  • the air flow control unit can be used to apply air in a targeted manner to the area from the air duct or ducts.
  • a single, i.e. a common, air flow control unit is present for two air ducts, so that only one drive is required, which is designed to move the air flow control unit into different positions.
  • two (or more) streams of air can be directed by the present invention using only one actuator.
  • the area into which air flows from the air duct or ducts can be, for example, a drawer or another area of the cooled interior.
  • the case is covered by the invention in which there is a common air flow control unit and thus a common drive for two or also for more than two air ducts.
  • the invention is therefore not limited to exactly two air ducts.
  • the flow resistance of the air flow is reduced so that, for example, an existing fan can run at low speeds, so that the noise emissions are reduced.
  • a position in which, by means of the air flow control unit, air flows from both and/or from neither of the air ducts into the area is also covered by the invention.
  • a partial opening of the air duct or ducts by means of the air flow control unit is also conceivable, so that the area made up of both (or more than two) air ducts is exposed to air.
  • the source of cold air can be one or more evaporators of the refrigerant circuit of the device.
  • the fan or fans can be arranged in such a way that they convey cold air from the evaporator into the air ducts.
  • the airflow control unit may have a cover member and a plurality of openings that are fully or partially closed depending on the position of the cover member.
  • one (or more) first opening of the air flow control unit can be in flow communication with the first air duct and one (or more) second opening of the air flow control unit can be in flow communication with the second air duct.
  • the air flow control unit can have a linearly displaceable cover element and/or a rotatably arranged cover element.
  • the cover element can be a slide, plate, flap, etc. that can be moved into different positions.
  • the air flow control unit can be designed in such a way that it can be retrofitted into an existing device. Due to the space saving (lack of additional drive), the customer clearly gains useful content and the air flow control unit can be integrated into an existing device without having to adapt the surrounding components. This saves additional tool costs.
  • the air flow control unit can be modularly integrated into an existing device or retrofitted.
  • a common fan which applies air to the at least two air ducts.
  • the fan can be arranged in such a way that the air ducts are charged with the same volume flow or with different volume flows.
  • the latter can be achieved, for example, by arranging the fan relative to the inlets of the air ducts or by the air ducts having different flow cross sections or being provided with throttle elements by means of which the flow resistance is changed or adjustable.
  • the first air duct is in flow communication with a different cold air source or with a different region of the same cold air source than the second cold air duct. It is thus possible to supply air at different temperatures to the two (or more than two) air ducts.
  • the cold air sources are preferably one or more evaporators.
  • the drive of the air flow control unit can be electric or have or consist of an element whose expansion can be changed by heat. It is conceivable, for example, to use an electric motor, an electromagnet, a wire or other element (preferably a metal element) that changes its length due to the effect of heat, or another element that, for example, has or can consist of memory metal.
  • the air flow control unit or a part thereof is moved into different positions by the drive.
  • figure 1 10 shows an airflow control unit for controlling two airflows in a region (not shown) of a cooled interior of a refrigerator and/or freezer.
  • the air flow control unit 10 is located at the outlets of two air ducts, which are not shown. Their inlets are in flow communication with one or more evaporators of the device, which forms the cold air source. Air is introduced into the air ducts by means of one or more fans and then reaches the air flow control unit 10.
  • the air flow control unit 10 has a base body 30 in which a plurality of openings or passages 1 - 6 are arranged.
  • the plate-shaped cover element 31 is slidably arranged in or on the base body 30 and opens or closes openings depending on its position.
  • the cover element 31 is moved by means of the drive unit 20, which is, for example, an electric motor.
  • FIG 1 a position of the cover element 31 is shown in which it opens the openings 5, 6, but closes the openings 1-4.
  • a first air duct opens into openings 5, 6 and a second air duct into openings 1-4, the second air duct is thus blocked and air only flows out of the first air duct through the opened openings 5, 6 into the area to be cooled.
  • figure 2 shows the position of the slide or cover element 31, in which the openings 5, 6 are blocked by means of the cover element 31 and the openings 1-4 are open, so that air flows into the area only from the second air duct, but not from the first Air duct, since the openings 5, 6 in fluid communication with it are closed.
  • FIGs 3 to 5 show an embodiment of an air flow control unit with a rotatable, plate-shaped cover element 31, which is rotatable about the axis A.
  • FIG is arranged on the base body 30 .
  • Reference number 7 shows a first opening and reference number 8 a second opening. Both openings represent partial areas of a common part-circular or circular opening in the base body 31.
  • both openings 7, 8 are exposed, so that air can flow into the area from both of the air ducts that are in flow communication with them.
  • At least two airflows can be controlled with one airflow control unit and only one drive.
  • the air streams can differ, for example, in terms of temperature and/or volume flow and/or flow rate and/or air humidity, so that the area or areas with the desired air property can be subjected to targeted action.
  • air with different temperatures and volumes can be applied to two air ducts.
  • the air flow control unit is installed at the end or at the outlet of the air ducts. Either the first air flow (temperature 1, volume flow 1) or the other air flow (temperature 2, volume flow 2) can thus flow through the air flow control unit into the area in question of the cooled interior. The area or compartment thus receives air at different temperatures.

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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
EP21200478.2A 2020-10-08 2021-10-01 Appareil de refroidissement et/ou de congélation Pending EP3982066A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020126441 2020-10-08
DE102020131304.7A DE102020131304A1 (de) 2020-10-08 2020-11-26 Kühl- und/oder Gefriergerät

Publications (1)

Publication Number Publication Date
EP3982066A1 true EP3982066A1 (fr) 2022-04-13

Family

ID=78078005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21200478.2A Pending EP3982066A1 (fr) 2020-10-08 2021-10-01 Appareil de refroidissement et/ou de congélation

Country Status (1)

Country Link
EP (1) EP3982066A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005005940U1 (de) * 2005-04-13 2006-08-24 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
CN106225384A (zh) * 2015-09-18 2016-12-14 青岛海尔股份有限公司 风道组件及具有该风道组件的冰箱

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005005940U1 (de) * 2005-04-13 2006-08-24 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
CN106225384A (zh) * 2015-09-18 2016-12-14 青岛海尔股份有限公司 风道组件及具有该风道组件的冰箱

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