EP2153142A2 - Automatischer eisbereiter und eiswürfelschale - Google Patents
Automatischer eisbereiter und eiswürfelschaleInfo
- 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- Withdrawn
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
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710021558 DE102007021558A1 (de) | 2007-05-08 | 2007-05-08 | Automatischer Eisbereiter und Eiswürfelschale |
PCT/EP2008/055332 WO2008135493A2 (de) | 2007-05-08 | 2008-04-30 | Automatischer eisbereiter und eiswürfelschale |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2153142A2 true EP2153142A2 (de) | 2010-02-17 |
Family
ID=39829260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08749920A Withdrawn EP2153142A2 (de) | 2007-05-08 | 2008-04-30 | Automatischer eisbereiter und eiswürfelschale |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2153142A2 (de) |
CN (1) | CN101688719A (de) |
DE (1) | DE102007021558A1 (de) |
RU (1) | RU2009140593A (de) |
WO (1) | WO2008135493A2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020101370A1 (ko) * | 2018-11-16 | 2020-05-22 | 엘지전자 주식회사 | 아이스 메이커 및 냉장고 |
Family Cites Families (7)
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 |
-
2007
- 2007-05-08 DE DE200710021558 patent/DE102007021558A1/de not_active Withdrawn
-
2008
- 2008-04-30 WO PCT/EP2008/055332 patent/WO2008135493A2/de active Application Filing
- 2008-04-30 EP EP08749920A patent/EP2153142A2/de not_active Withdrawn
- 2008-04-30 RU RU2009140593/21A patent/RU2009140593A/ru not_active Application Discontinuation
- 2008-04-30 CN CN200880014851A patent/CN101688719A/zh active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO2008135493A2 * |
Also Published As
Publication number | Publication date |
---|---|
CN101688719A (zh) | 2010-03-31 |
WO2008135493A3 (de) | 2009-05-22 |
RU2009140593A (ru) | 2011-06-20 |
DE102007021558A1 (de) | 2008-11-13 |
WO2008135493A2 (de) | 2008-11-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20091208 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
17Q | First examination report despatched |
Effective date: 20100802 |
|
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MIELE & CIE. KG Owner name: BSH HAUSGERAETE GMBH |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20161101 |