EP2048459A2 - Appareil de réfrigération et/ou de refroidissement - Google Patents

Appareil de réfrigération et/ou de refroidissement Download PDF

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Publication number
EP2048459A2
EP2048459A2 EP08017561A EP08017561A EP2048459A2 EP 2048459 A2 EP2048459 A2 EP 2048459A2 EP 08017561 A EP08017561 A EP 08017561A EP 08017561 A EP08017561 A EP 08017561A EP 2048459 A2 EP2048459 A2 EP 2048459A2
Authority
EP
European Patent Office
Prior art keywords
ice cubes
conveying
ice
conveying direction
designed
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Withdrawn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
EP08017561A
Other languages
German (de)
English (en)
Other versions
EP2048459A3 (fr
Inventor
Holger Dipl.-Ing. Jendrusch (FH)
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
Application filed by Liebherr Hausgeraete Ochsenhausen GmbH filed Critical Liebherr Hausgeraete Ochsenhausen GmbH
Publication of EP2048459A2 publication Critical patent/EP2048459A2/fr
Publication of EP2048459A3 publication Critical patent/EP2048459A3/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Withdrawn legal-status Critical Current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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C5/00—Working or handling ice
    • F25C5/20—Distributing ice
    • F25C5/22—Distributing ice particularly adapted for household 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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C2500/00—Problems to be solved
    • F25C2500/08—Sticking or clogging of ice
    • 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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C2600/00—Control issues
    • F25C2600/02—Timing
    • 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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C5/00—Working or handling ice
    • F25C5/02—Apparatus for disintegrating, removing or harvesting ice
    • F25C5/04—Apparatus for disintegrating, removing or harvesting ice without the use of saws
    • F25C5/046—Ice-crusher machines

Definitions

  • the present invention relates to a refrigerator and / or freezer with an ice cube maker and with funding for the promotion of ice cubes.
  • the ice cubes are first stored in a bearing shell after their production, until they are then removed by prompting the user from this, optionally after crushing.
  • a disadvantage of devices known from the prior art is that the ice cubes clump, especially if they lie in the bearing shell for a longer time. If the ice cubes are thus stored longer in such devices known from the prior art, it may happen that they cake together due to sublimation processes. These clumped ice cubes must now be separated by rotation of the funding, which may be performed, for example in the form of a screw conveyor, which succeeds with only limited and what brings with it the disadvantage that the drive motor for separating the ice cubes are designed for comparatively high drive torques got to.
  • the present invention is therefore the object of developing a refrigerator and / or freezer of the type mentioned in such a way that the clumping of ice cubes can be prevented in a simple manner.
  • the conveying means are designed such that they can be operated in different conveying directions.
  • the conveying means are, for example, a conveying screw, it is provided according to the invention that they can be operated both in the usual conveying direction and in the reverse conveying direction. It has been shown that such a reversal of the conveying direction leads to the mixing of the ice cubes and largely or completely prevents said caking. A significant advantage is that the ice cubes thus no longer have to be separated, that is, the engine must be designed only for a comparatively low drive torque.
  • the ice cube maker may comprise a container and means for crushing ice cubes, wherein the conveying means are designed such that they promote the ice cubes from the container in the usual conveying direction in the means for crushing ice cubes.
  • These means for crushing ice cubes can be embodied, for example, in the form of a "crushing plant", which comminutes the ice cube fed to it into smaller fragments.
  • a crush plant for example consist of several knives, some of which are fixed and some rotatable.
  • a common drive motor is provided for the conveying means and for the means for crushing ice cubes.
  • this drive motor can be designed for the drive torque required for crushing the ice cubes in crushing plant, since higher drive torques do not occur. This is due to the fact that drive torques for separating ice cubes by the conveyor does not occur, since their caking according to the invention can be substantially or completely prevented.
  • the conveying means are designed such that they are operated at predetermined times and / or with a predetermined time in a direction opposite to the usual conveying direction of the conveying direction. It is thus conceivable, for example, that the funding per unit time, z. B. are operated once per hour for a predetermined period of time in a relative to the usual direction of conveyance reverse conveying direction, so that the ice cubes mixed and caking is prevented.
  • the time intervals and / or the time period in which this reverse conveying direction is selected may be fixed or be adjustable by the user of the device.
  • the conveying means are designed such that they are operated in response to one or more parameters in a direction opposite to the usual conveying direction conveying direction.
  • a specific parameter is detected and that a reversal of the conveying direction takes place as a function of the detected parameter.
  • the parameter is the amount of ice cubes. It is thus conceivable that it is checked whether or how many ice cubes are in the container of the arrangement and depending on the decision is made whether and / or how long the reversal of the conveying direction is required.
  • the bearing shell is largely or completely filled, it can be provided to make a reversal of the conveying direction comparatively frequently and / or long in order to prevent caking of the ice cubes.
  • the parameter is the time that has elapsed since the last delivery of ice cubes.
  • This embodiment of the invention is based on the finding that the probability of the caking of ice cubes increases with the length of time in which the ice cubes are stored. If a very short period of time has elapsed since the last conveying process, it can be provided that a reversal of the conveying direction is initially prevented. Only when a certain time limit has been exceeded, can it be provided that operation is then carried out, for example, for a predetermined period of time in the reverse conveying direction.
  • the conveying means may be, for example, a screw conveyor whose direction of rotation can be changed according to the invention.
  • the invention is not limited to a screw conveyor, because other conveying means are used, as long as they are suitable to prevent by a reversal of their conveying direction that caking of the ice cubes takes place.
  • the figure shows a schematic perspective view of an ice cube maker according to the present invention.
  • the ice cube maker has a unit 10 for the production of ice cubes.
  • This unit 10 is provided with a water connection, which is not shown in detail in the figure.
  • the reference numeral 12 denotes a front panel of the ice cube maker.
  • the container 20 or the bearing shell into which the ice cubes produced in the unit 10 fall is the container 20 or the bearing shell into which the ice cubes produced in the unit 10 fall.
  • the ice cubes are stored in the bearing shell 20 until they are removed or crushed by the user of the device.
  • the screw conveyor 30 is arranged, which can be set in rotation by means of the drive motor 40.
  • the drive motor 40 is an electric motor that operates the screw conveyor in the usual conveying direction when crushing or removing ice cubes.
  • Reference numeral 50 designates a so-called "crush plant” which consists of fixed and rotating knives and which has the task of crushing the ice cubes conveyed by means of the screw conveyor 30 into the unit 50.
  • the crushed ice cubes are then output via a dispenser located, for example, in the front of the door of the device.
  • Reference numeral 60 denotes a safety switch which prevents the crushing plant 50 from being operated with the door open.
  • the motor 40 is designed so that it can be operated in two directions of rotation. In the normal conveying direction, the screw conveyor 30 is operated such that the ice cubes are conveyed out of the bearing shell 20 to the crushing plant 50. In the reverse direction of rotation there is no promotion, but a mixing of the ice cubes in the bearing shell 20, which ultimately leads to a caking of the ice cubes therein is prevented.
  • the drive motor 40 serves both to drive the screw conveyor 30 and to drive the crushing plant 50.
  • a first drive motor for operating the conveying means and a second drive motor for operating the crushing unit is used ,
  • the ice cube maker can be used, for example, in appliances with ice and water dispensers arranged in the door.
  • the invention is not limited to such devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Confectionery (AREA)
  • Production, Working, Storing, Or Distribution Of Ice (AREA)
  • Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP08017561.5A 2007-10-08 2008-10-07 Appareil de réfrigération et/ou de refroidissement Withdrawn EP2048459A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202007014027U DE202007014027U1 (de) 2007-10-08 2007-10-08 Kühl- und/oder Gefriergerät

Publications (2)

Publication Number Publication Date
EP2048459A2 true EP2048459A2 (fr) 2009-04-15
EP2048459A3 EP2048459A3 (fr) 2015-08-12

Family

ID=40193771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08017561.5A Withdrawn EP2048459A3 (fr) 2007-10-08 2008-10-07 Appareil de réfrigération et/ou de refroidissement

Country Status (3)

Country Link
US (1) US9057551B2 (fr)
EP (1) EP2048459A3 (fr)
DE (1) DE202007014027U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103940184A (zh) * 2014-04-08 2014-07-23 河南新飞制冷器具有限公司 风冷冰箱用制冰机及其控制方法
EP4177548A1 (fr) * 2009-12-22 2023-05-10 LG Electronics, Inc. Réfrigérateur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020108186A1 (de) 2020-02-24 2021-08-26 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät mit einer Ausgabeeinheit für Eiswürfel oder Crushed Ice

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3329223A (en) * 1965-01-05 1967-07-04 Whirlpool Co Ice maker dispenser control
US3858765A (en) * 1973-05-18 1975-01-07 Servend Distributors Dispensing apparatus
US4084725A (en) * 1976-08-26 1978-04-18 Whirlpool Corporation Ice piece dispenser
JP2006118770A (ja) * 2004-10-20 2006-05-11 Hoshizaki Electric Co Ltd アイスディスペンサ
US7395672B2 (en) * 2005-10-18 2008-07-08 General Electric Company Ice dispenser assembly and method of assembling same
EP1952078A1 (fr) * 2005-11-11 2008-08-06 Electrolux Home Products Corporation N.V. Systeme de distribution de glace destine a un congelateur
DE202006013709U1 (de) * 2006-09-07 2006-11-02 BSH Bosch und Siemens Hausgeräte GmbH Eisspender

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4177548A1 (fr) * 2009-12-22 2023-05-10 LG Electronics, Inc. Réfrigérateur
CN103940184A (zh) * 2014-04-08 2014-07-23 河南新飞制冷器具有限公司 风冷冰箱用制冰机及其控制方法

Also Published As

Publication number Publication date
US20090139256A1 (en) 2009-06-04
DE202007014027U1 (de) 2009-02-19
US9057551B2 (en) 2015-06-16
EP2048459A3 (fr) 2015-08-12

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