WO2012136557A2 - Appareil de froid équipé d'une machine à glaçons - Google Patents

Appareil de froid équipé d'une machine à glaçons Download PDF

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Publication number
WO2012136557A2
WO2012136557A2 PCT/EP2012/055623 EP2012055623W WO2012136557A2 WO 2012136557 A2 WO2012136557 A2 WO 2012136557A2 EP 2012055623 W EP2012055623 W EP 2012055623W WO 2012136557 A2 WO2012136557 A2 WO 2012136557A2
Authority
WO
WIPO (PCT)
Prior art keywords
heater
pipe
ice
ice maker
defrost heater
Prior art date
Application number
PCT/EP2012/055623
Other languages
German (de)
English (en)
Other versions
WO2012136557A3 (fr
Inventor
Cuma DÜLGER
Jochen HÄRLEN
Original Assignee
BSH Bosch und Siemens Hausgeräte 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 BSH Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Publication of WO2012136557A2 publication Critical patent/WO2012136557A2/fr
Publication of WO2012136557A3 publication Critical patent/WO2012136557A3/fr

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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/08—Removing frost by electric heating
    • 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
    • F25C1/25—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
    • F25C2400/00—Auxiliary features or devices for producing, working or handling ice
    • F25C2400/10—Refrigerator units
    • 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
    • F25C2400/00—Auxiliary features or devices for producing, working or handling ice
    • F25C2400/14—Water supply
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • F25D21/006—Defroster control with electronic control circuits
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/02—Detecting the presence of frost or condensate
    • 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

Definitions

  • the present invention relates to a refrigerator, in particular a household refrigerator, with a storage compartment and an icemaker.
  • a filler tube via which the water reaches the ice maker, must be guided into the storage compartment of the refrigeration device. If temperatures below 0 ° C are reached in this storage compartment, stagnant water freezes in the filler pipe. Over the course of several operating cycles of the icemaker, so much ice may accumulate in the filler tube that the water supply to the icemaker is impaired or blocked. If the filler pipe is clogged by ice at its outlet end and water is tried in the
  • Admitting an ice maker may cause the filler tube to freeze over its entire length and be damaged.
  • the object of the invention is therefore to provide a refrigerator with icemaker and a filler pipe for supplying the icemaker with water, in which a freezing of the
  • the object is achieved by functionally in a refrigerator, in particular a household refrigerator, with a storage compartment, an icemaker, engaging in the storage compartment filler pipe for supplying the icemaker with water and arranged on the filler pipe heating the pipe heater to a
  • Defrost heater of the refrigerator is coupled. Such coupling does not necessarily prevent the filler tube from cooling below freezing, but it is not required because freezing a small amount of residual water left on the filler tube after filling the icemaker does not have to result in closure of the filler tube and usually with an unheated filler pipe the icemaker can be filled many times in succession before it collects so much ice at the filler pipe that it can come to a closure. In order to eliminate this ice in time, it is sufficient if the filler pipe only from time to time, in
  • Connection with defrosting of the refrigerator is heated above the freezing point. This is most easily done with the help of a common switch for supplying the defrost heater and the pipe heater with operating current.
  • the defrost heater is located at a first embodiment
  • Dew-water drain of the storage compartment to be arranged.
  • an ice sensor may be provided to her expediently to the need for
  • Operating power is supplied, coupled to the icemaker to close when using the icemaker, and is coupled to the heaters to open after operation of the heaters.
  • Such a switch ensures that in sporadic use of the icemaker, the filler pipe is heated only if since the previous Defrosting the icemaker has actually been used at least once and for this water has flowed through the filler pipe.
  • Fig. 1 shows a schematic section through a refrigeration device to which the present
  • Fig. 2 is a longitudinal sectional perspective view of a filler pipe of the
  • Refrigerating appliance of Fig. 1
  • FIG. 3 is a circuit diagram of a pipe heater and a defrost heater according to a first embodiment of the invention
  • FIG. 4 is a circuit diagram of a pipe heater and defrost heater according to a second embodiment.
  • the domestic refrigeration appliance shown in a schematic section in FIG. 1 has a heat-insulating body 1 and a door 2 which delimit a storage compartment, here a freezer compartment 3. From the freezer compartment 3 is in an upper part of the body 1 a
  • Separated evaporator chamber 4 which includes an evaporator 5, a defrost heater 6 and a (not shown) fan for driving the air exchange between the
  • the defrost heater 6 extends here plate-shaped below the evaporator and a defrost trough 29, the extends within the evaporator chamber 4 from the evaporator 5 to a passage in the rear wall of the body 1.
  • An automatic ice maker 7 is arranged in the freezer compartment 3 close to the evaporator chamber 4. The construction of the automatic ice maker 5 is not shown in the figure, since such ice makers are known and the applicability of the invention is not to a particular type of ice maker
  • the ice maker 7 is supplied with fresh water via a line 8, which is connected outside the refrigerator to a domestic water supply and a
  • a solenoid valve 9 for opening and blocking the conduit 8 is disposed in the thermal barrier coating.
  • the line 8 reaches its highest point 10 downstream of
  • Solenoid valve 9 from there protrudes a sloping filler pipe 1 1 in the freezer compartment 3 and, within the freezer compartment 3, in the icemaker 7 inside.
  • the solenoid valve 9, an upstream of this located part of the line 8 and extending from the solenoid valve 9 to the highest point 10 part of the line 8 are protected by the surrounding thermal barrier coating from freezing.
  • Finished pieces of ice are placed from the icemaker 7 in one below
  • Reservoir 12 ejected. At the bottom of the reservoir 12 there extends a screw conveyor 13 which is rotatable by a motor to deliver ice to an outlet opening 14 at an end of the reservoir 12 adjacent the door 2 and from there via an ice chute 15 extending through the door 2 into an expense table 16 of the door 2 to convey.
  • control panel 17 may comprise a button which triggers a single opening of the solenoid valve 9 and filling ice molds of the ice maker 7, or it may be provided a button whose operation triggers a continuous fully automatic operation of the icemaker 7, which is then possibly interrupted when a (not shown) level sensor on the reservoir 12 indicates that a maximum level of the reservoir 12 is reached.
  • Fig. 2 shows a longitudinal section of a subsequent to the solenoid valve 9 downstream portion of the water pipe 8, which comprises the highest point 10 and from there continuously sloping downwardly extending filler pipe 1 1.
  • the molded plastic part shown in the figure comprises a projecting from the filler pipe 11 flat flange 18 for attachment to an inner container of the freezer compartment 3.
  • the protruding from the flange 18 filler pipe 1 1 comprises a cylindrical portion 19 which in the assembled state in the Essentially its entire length is wrapped with a foil heater 20.
  • the free diameter of the filling tube 11 is at least 5 mm, preferably more, to ensure that when after the supply of water to the icemaker 7, the solenoid valve 9 closes again, the filler tube 11 substantially completely, up to the highest point 10, emptied ,
  • the same purpose is served by a funnel-shaped widening 21 at the free end of the filling tube 11 and a recess 22 at the bottom of the widening 21.
  • the water remaining in an ascending section 23 of the molded part after the solenoid valve 9 is blocked does not jeopardize the functioning of the water supply because this section 23 is located far enough from the freezer compartment 3 inside the rear wall of the body 1 to be protected from frost.
  • the icemaker 7 can be filled several times in succession before the amount of ice that accumulates at the filling tube 11 becomes so great that it could affect the flow of water.
  • Fig. 3 shows an electrical circuit diagram of the defrost heater 6 and the
  • Foil heater 20 according to a first embodiment of the invention. Both heaters 6, 20 are electrically connected in parallel and connected via a common switch 24 to a supply voltage source 25.
  • the switch 24 is controlled by an ice sensor 26, which is arranged on the evaporator 5 or in its immediate vicinity in the evaporator chamber 4.
  • an ice sensor 26 for example, is a light barrier into consideration, which is placed on the evaporator 5 so that an ice layer growing on the evaporator 5 blocks the light beam of the light barrier over time.
  • a mechanical for example by a piezoelectric element, excited resonator whose resonant frequency shifts through a layer of ice deposited on it, so that from the resonance behavior on the thickness of an ice layer deposited on the sensor can be closed.
  • the sensor 26 detects a critical amount of ice on the evaporator 5, it closes the switch 24, as shown in FIG. indicated by the direction of the switch 24 and sensor 26 connecting effect arrow, so that both heaters 6, 20 heat up and the ice on both the evaporator 5 and the filler pipe 11 defrosts and flows.
  • the signal from the ice sensor 26 could also be used to reopen the switch 24 as soon as the amount of ice is sufficiently reduced.
  • the signal of a temperature sensor 27, which is arranged in a region of the evaporator 5 remote from the defrost heater 6, is used to control the opening of the switch 24.
  • FIG. 4 shows a circuit diagram according to a second embodiment of the invention.
  • the heaters 6, 20, the switch 24 and the sensors 26, 27 are the same as in the first embodiment.
  • a second switch 28 which is arranged in series with the film heater 20 and parallel to the defrost heater 6.
  • the switch 28 is closed in each case by pressing a button on the control panel 17, with the icemaker 7 is set in motion.
  • An opening of the switch 28 takes place under the same condition as the opening of the switch 24, depending on the signal of the Eissensors 26 or the temperature sensor 27.
  • the switch 28 remains open, so that, even if the defrost heater 6 is in operation, no unnecessary heat is simultaneously released through the film heater 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Defrosting Systems (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

Appareil de froid, notamment appareil de froid ménager, comportant un compartiment de stockage (3), une machine à glaçons (7), un tube de remplissage (11) débouchant dans le compartiment de stockage (3) pour alimenter la machine à glaçons (7) en eau, et un tube chauffant (20) disposé contre le tube de remplissage (11), le tube chauffant (20) étant, de par sa fonction, couplé à un dispositif chauffant de dégivrage (6).
PCT/EP2012/055623 2011-04-06 2012-03-29 Appareil de froid équipé d'une machine à glaçons WO2012136557A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011006860A DE102011006860A1 (de) 2011-04-06 2011-04-06 Kältegerät mit Eisbereiter
DE102011006860.0 2011-04-06

Publications (2)

Publication Number Publication Date
WO2012136557A2 true WO2012136557A2 (fr) 2012-10-11
WO2012136557A3 WO2012136557A3 (fr) 2012-12-20

Family

ID=45998259

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/055623 WO2012136557A2 (fr) 2011-04-06 2012-03-29 Appareil de froid équipé d'une machine à glaçons

Country Status (2)

Country Link
DE (1) DE102011006860A1 (fr)
WO (1) WO2012136557A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10222112B2 (en) 2012-12-12 2019-03-05 Bsh Hausgeraete Gmbh Refrigeration device having an ice maker
WO2019085530A1 (fr) * 2017-10-31 2019-05-09 海信容声(广东)冰箱有限公司 Ensemble d'entrée d'eau de machine à glaçons de réfrigérateur et réfrigérateur

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11101561A (ja) 1997-09-30 1999-04-13 Toshiba Corp 冷蔵庫

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6574982B1 (en) * 2001-11-30 2003-06-10 General Electric Company Icemaker fill tube assembly
DE202008006513U1 (de) * 2008-03-13 2009-07-30 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11101561A (ja) 1997-09-30 1999-04-13 Toshiba Corp 冷蔵庫

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10222112B2 (en) 2012-12-12 2019-03-05 Bsh Hausgeraete Gmbh Refrigeration device having an ice maker
WO2019085530A1 (fr) * 2017-10-31 2019-05-09 海信容声(广东)冰箱有限公司 Ensemble d'entrée d'eau de machine à glaçons de réfrigérateur et réfrigérateur
US10584916B2 (en) 2017-10-31 2020-03-10 Hisense Ronshen (Guangdong) Refrigerator Co., Ltd. Water-feed assembly of ice maker in refrigerator and refrigerator

Also Published As

Publication number Publication date
WO2012136557A3 (fr) 2012-12-20
DE102011006860A1 (de) 2012-10-11

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