EP2153142A2 - Préparateur de glace automatique et bac à glaçons - Google Patents

Préparateur de glace automatique et bac à glaçons

Info

Publication number
EP2153142A2
EP2153142A2 EP08749920A EP08749920A EP2153142A2 EP 2153142 A2 EP2153142 A2 EP 2153142A2 EP 08749920 A EP08749920 A EP 08749920A EP 08749920 A EP08749920 A EP 08749920A EP 2153142 A2 EP2153142 A2 EP 2153142A2
Authority
EP
European Patent Office
Prior art keywords
ice
cube tray
ice cube
radius
pieces
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Withdrawn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
EP08749920A
Other languages
German (de)
English (en)
Inventor
Peter Eckartsberg
Bernd Heger
Steve Caldow
Matthew Kueny
Frank Placke
Matthias Stahl
Ulrich Van Pels
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.)
Miele und Cie KG
BSH Hausgeraete GmbH
Original Assignee
Miele und Cie KG
BSH Bosch und Siemens Hausgeraete 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 Miele und Cie KG, BSH Bosch und Siemens Hausgeraete GmbH filed Critical Miele und Cie KG
Publication of EP2153142A2 publication Critical patent/EP2153142A2/fr
Withdrawn legal-status Critical Current

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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C1/00—Producing ice
    • F25C1/22—Construction of moulds; Filling devices for moulds
    • 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
    • F25C2500/02—Geometry problems
    • 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
    • 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
    • F25C5/08—Apparatus for disintegrating, removing or harvesting ice without the use of saws by heating bodies in contact with the ice

Definitions

  • the present invention relates to an ice cube tray for the production of ice cubes and an ice maker, in which such an ice cube tray is used, as well as a refrigerator with such an icemaker.
  • a stirring tool may be provided in the collecting container.
  • the inventors of the present invention have surprisingly found that one approach to solving this problem is not found in the storage of the finished ice cubes, but in the ice cube tray used to make them.
  • an ice cube tray for an ice maker with at least one compartment, in which the wall of the compartment is spherically curved on the predominant part of its surface.
  • a surface which is spherically curved at a given point is to be understood as a surface which has an equal curvature in each section through the given point.
  • the compartments of the ice makers known from the above-mentioned writings only have cylindrically curved surfaces: the walls of the compartments are curved only in a plane perpendicular to the pivot axis of the ice cube tray; in a plane parallel to the pivot axis, the cuts are straight.
  • the spherical curvature ensures that finished pieces of ice can essentially only touch one another selectively in the collecting container, so that the surfaces on which they can freeze together remain small. Therefore, the force required to separate the pieces of ice from each other remains low, and the noise is reduced.
  • a heater for superficial Antauen the ice cubes is preferably installed in the ice cube tray.
  • the compartment preferably has the shape of a segment of a body of revolution in order to facilitate sliding out of the pieces of ice out of the compartment during pivoting of the tray.
  • a generator of the rotary body preferably describes a circular arc.
  • the arc preferably extends on both sides of that point.
  • the circular arc is a semicircle.
  • the radius of curvature of the generatrix is everywhere at least a quarter of the maximum radius of the rotating body.
  • the radius of curvature of the generatrix should not be greater than three quarters of the maximum radius of the rotating body.
  • the invention also provides an ice maker with a tray of the type defined above, which is suspended pivotably about an axis parallel to the axis of the rotary body.
  • the icemaker may also include a sump used to collect finished pieces of ice ejected from the ice cube tray.
  • Fig. 1 is a perspective view of an ice maker according to the present invention
  • FIG. 2 is a perspective view of the ice cube tray of the ice maker of FIG. 1;
  • FIG. 3 shows a section through the ice maker of Figure 1 in the ejection position ..;
  • Fig. 4 views of a piece of ice produced with the tray.
  • Fig. 5 is a view of a piece of ice according to a modification.
  • Fig. 1 is a perspective view of an automatic icemaker according to the present invention which can be used in a refrigerating appliance, not shown.
  • the ice maker comprises an ice cube tray 1 with a plurality of compartments 2, which is suspended about an axis 3 pivotally in a frame 4 open at the top and bottom.
  • One side of the frame is formed by a housing 5 which receives a motor for pivotal movement of the ice cube tray 1 about the axis 3 and control electronics therefor.
  • An inlet line for filling the compartments 2 with water is omitted in Fig. 1, as well as a collection container for collecting finished pieces of ice, which is provided under the frame 4.
  • Fig. 2 is an enlarged view of the ice cube tray 1, wherein some of the compartments 2 of the ice cube tray 1 are filled and others are shown empty. It can be seen that the water level in the compartments 2 is slightly above a recess 6 in a partition between the compartments 2, so that the water level between the compartments 2 can compensate. The connection between the compartments via the recesses 6 further ensures that an ice formation beginning in one of the compartments 2 can spread unhindered into all other compartments, thus freezing the water in all compartments substantially simultaneously.
  • the walls of the compartments 2 are flat only on a small, the recesses 6 adjacent quarter-circular portion 7; everywhere else they are spherically curved, as will be explained in more detail with reference to FIG 4.
  • FIG. 4 shows ice pieces produced in views a to d with the ice cube tray 1.
  • Fig. 4a is a view of a piece of ice 10, seen along the axis 3;
  • Fig. 4b is a side view from a direction perpendicular to the axis 3,
  • Fig. 4c is a plan view and
  • Fig. 4d is a perspective view.
  • the ice lump 10 is the same as the tray 2 in which it is formed, a segment of a body of revolution, with the result that during demolding the tray 2 can be rotated around the ice lump 10 without that this is taken from the tray 2.
  • Fig. 4a is a view of a piece of ice 10, seen along the axis 3;
  • Fig. 4b is a side view from a direction perpendicular to the axis 3;
  • Fig. 4c is a plan view and
  • Fig. 4d is a perspective view.
  • the ice lump 10 is the same as the
  • the generatrix of the rotating body is a semicircle 1 1, which is extended by two straight to the axis 3 straight line pieces 12 to the axis 3 out.
  • the radius of the semicircle 11 is, for example, 12.5 mm, while the largest radius of the rotational body relative to the axis 3 is 22 mm.
  • the surface of the ice lump 10 is flat only on the upper side 13 corresponding to the water level in the compartment 2 and the circle segments 14 corresponding to the straight line segments 12 on the sides of the ice lump 10; the generated by rotation of the semicircle 11 predominant part 15 of the surface of the ice lump 10 is spherically curved.
  • a contact of the curved surface 15 with other pieces of ice in the sump is possible only on small contact surfaces. How large these contact surfaces are depends on the one hand on the radius of curvature, on the other hand on the amount of liquid water, which is issued together with the pieces of ice from the tray 1 and collects in the sump at the points of contact of the ice cubes. In order to minimize this amount of liquid, and also to optimize the energy efficiency of the icemaker, the amount of water that needs to be thawed on the ice lumps 10 in the compartments 2 in order to detach them from the walls of the compartments over their entire surface, be kept as small as possible. This requires a uniform distribution of the heat supplied to the teat over the surface of the walls of the compartments 2 or the pieces of ice 10 contained therein.
  • the radius of the semicircle is expediently not greater than three quarters of the radius of the rotational body.
  • a surface 18 of the ice pieces produced by the straight piece 16 correspond in each case to complementary surfaces of the compartments 2, which are flat (in the case of the surfaces 14), spherically curved (in the case of the surfaces 15 ) or cylindrically curved (in the case of the surface 18).

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Production, Working, Storing, Or Distribution Of Ice (AREA)
  • Table Equipment (AREA)

Abstract

L'invention concerne un bac à glaçons (1) pour un préparateur de glace qui comprend au moins un compartiment (2) dont la paroi est courbée en forme sphérique sur la plus grande partie (15) de sa surface.
EP08749920A 2007-05-08 2008-04-30 Préparateur de glace automatique et bac à glaçons Withdrawn EP2153142A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007021558A DE102007021558A1 (de) 2007-05-08 2007-05-08 Automatischer Eisbereiter und Eiswürfelschale
PCT/EP2008/055332 WO2008135493A2 (fr) 2007-05-08 2008-04-30 Préparateur de glace automatique et bac à glaçons

Publications (1)

Publication Number Publication Date
EP2153142A2 true EP2153142A2 (fr) 2010-02-17

Family

ID=39829260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08749920A Withdrawn EP2153142A2 (fr) 2007-05-08 2008-04-30 Préparateur de glace automatique et bac à glaçons

Country Status (5)

Country Link
EP (1) EP2153142A2 (fr)
CN (1) CN101688719A (fr)
DE (1) DE102007021558A1 (fr)
RU (1) RU2009140593A (fr)
WO (1) WO2008135493A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020101370A1 (fr) * 2018-11-16 2020-05-22 엘지전자 주식회사 Machine à glaçons et réfrigérateur

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4942742A (en) * 1986-04-23 1990-07-24 Burruel Sergio G Ice making apparatus
JPH0689970B2 (ja) * 1987-11-10 1994-11-14 ダイキン工業株式会社 製氷機
US4910974A (en) * 1988-01-29 1990-03-27 Hoshizaki Electric Company Limited Automatic ice making machine
JPH01310277A (ja) * 1988-06-08 1989-12-14 Kensho Kawaguchi 押圧熱熔解により球形に成形した氷塊及びその製造方法
DE102005003236A1 (de) 2005-01-24 2006-07-27 BSH Bosch und Siemens Hausgeräte GmbH Eisbereiter, Tablett dafür und Verfahren zur Eisherstellung
DE102005003243B4 (de) 2005-01-24 2016-02-25 BSH Hausgeräte GmbH Eisbereiter
DE102005003237A1 (de) 2005-01-24 2006-07-27 BSH Bosch und Siemens Hausgeräte GmbH Eisbereiter, Tablett und Betriebsverfahren dafür

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008135493A2 *

Also Published As

Publication number Publication date
WO2008135493A3 (fr) 2009-05-22
CN101688719A (zh) 2010-03-31
WO2008135493A2 (fr) 2008-11-13
DE102007021558A1 (de) 2008-11-13
RU2009140593A (ru) 2011-06-20

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