EP3309482B1 - Kältegerät mit verdampferkammer und kondenswasserableitung - Google Patents

Kältegerät mit verdampferkammer und kondenswasserableitung Download PDF

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Publication number
EP3309482B1
EP3309482B1 EP17195960.4A EP17195960A EP3309482B1 EP 3309482 B1 EP3309482 B1 EP 3309482B1 EP 17195960 A EP17195960 A EP 17195960A EP 3309482 B1 EP3309482 B1 EP 3309482B1
Authority
EP
European Patent Office
Prior art keywords
evaporator
refrigeration appliance
wall
appliance according
water outlet
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.)
Active
Application number
EP17195960.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3309482A1 (de
Inventor
Benjamin Schmidt
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH 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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL17195960T priority Critical patent/PL3309482T3/pl
Publication of EP3309482A1 publication Critical patent/EP3309482A1/de
Application granted granted Critical
Publication of EP3309482B1 publication Critical patent/EP3309482B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • 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
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/067—Evaporator fan 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/143—Collecting condense or defrost water; Removing condense or defrost water characterised by means to fix, clamp, or connect water pipes or evaporation trays

Definitions

  • the present invention relates to a refrigeration appliance, in particular a household refrigeration appliance, with an evaporator chamber and a condensation water drain line that drains the evaporator chamber.
  • a water drain pan is installed in the evaporator chamber under the evaporator, in which the condensed water that runs off the evaporator collects.
  • a water drainage tray mounted in the evaporator chamber would have to extend below the lower edges of these walls, but this is with the requirement that the evaporator chamber be both simply constructed and Maintenance purposes should be dismantled, difficult to agree.
  • the water drain pan has an end wall facing a downstream wall of the evaporator chamber, and fastening projections protruding from the end wall, penetrating through an opening of the downstream wall, and hooked to a surface of the downstream wall remote from the evaporator chamber.
  • these attachment projections can limit the distance between the front wall of the water drainage tray and the downstream wall of the evaporator chamber, they cannot make it exactly zero due to manufacturing tolerances. This can result in condensation water running down the downstream wall not getting into the water drainage tray, but instead running between its end wall and the downstream wall and thus areas of the refrigeration device reached where further drainage of the water is not guaranteed and accumulating water can lead to malfunctions of the refrigeration device.
  • DE 10 2006 015994 A1 relates to a refrigerator with a storage chamber and an evaporator chamber which communicates with the storage chamber via a cold air passage and a warm air passage and which contains an evaporator at which air flowing in from the storage chamber is cooled and then returned to the storage chamber.
  • the object of the invention is to create a refrigeration device in which the evaporator chamber is constructed in a simple and dismountable manner and a complete drainage of the condensation water is ensured.
  • the object is achieved in that, in a refrigeration appliance having an evaporator chamber, an evaporator mounted in the evaporator chamber, a fan for driving an air flow through the evaporator chamber and a water drainage tray which is mounted in the evaporator chamber under the evaporator and an end wall which is a downstream wall faces the evaporation chamber, and has at least one fastening projection projecting beyond the end wall and reaching through an opening in the downstream wall, in a stop position in which an outer surface of the end wall touches an inner surface of the downstream wall at an inner contact point and a rear surface of the attachment projection contacts an outer surface of the downstream wall at an outer contact point, planes tangent to the contacting surfaces at the contact points converge from the outer contact point towards the opening.
  • the external contact point is above the opening.
  • the end wall largely closes the opening cover up
  • a top edge of the end wall should be at least locally lower than the outer contact point to either ensure that if water collects in a gap between the end wall and the downstream wall, that water drains over the top edge of the end wall into the drain pan rather than through the opening, or to prevent in the first place that the end wall and the downstream wall can form a gap that drains through the opening.
  • this upper edge runs at the level of the opening.
  • the outer surface of the end wall and the inner surface of the downstream wall should be flat.
  • a region of the water drainage tray facing away from the downstream wall can rest on a base plate of the evaporator chamber.
  • an area of the water drainage tray facing the downstream wall is preferably at a distance from the base plate.
  • the space thus created between the water drain pan and the bottom plate can be used to accommodate a heater for the water drain pan therein and thus prevent condensation water flowing off the evaporator or the downstream wall from refreezing in the water drain pan.
  • the area of the water drain pan facing away from the downstream wall can engage between a defrost heater extending below the evaporator and the bottom plate of the evaporator chamber.
  • the defrost heater itself is plate-shaped and slopes down to the downstream wall, the water drainage tray then does not have to extend under the entire evaporator in order to completely collect condensation water flowing from there.
  • the remote area is exposed to compressive forces from the defrost heater and the base plate which exert a torque on the drain pan that drives a mounting projection against the contact points, thus ensuring that the contact at the outer and inner contact point is maintained even after shocks.
  • an upper edge of the opening may have at least one edge portion that rises obliquely to an apex.
  • fastening projections should be provided on the water drain pan on both sides of a central plane crossing the end wall.
  • the downstream wall can be part of a component which is inserted into the inner container and separates the evaporation chamber and storage compartment from one another
  • FIG. 1 shows a schematic section through an emergency frost refrigeration device.
  • a body 1 and a door 2 of the refrigerator can surround one or more chambers in 1 only one chamber 3 is shown.
  • An inner container 4 deep-drawn from plastic delimits the chamber 3 from a foam layer 5 filling the walls of the body 1 .
  • the chamber 3 is divided by an evaporator shell 6 into a storage compartment 7, an evaporator chamber 8 and a ventilator chamber 9.
  • a ventilator 10 in the ventilator chamber 9 sucks air from the storage compartment 7 via an inlet opening 11 close to the door into the evaporator chamber 8, through an evaporator arranged therein 12 and an opening 14 in a downstream wall 13 of the evaporator chamber 8 into the fan chamber 9 and ejects them from there into the storage compartment 7 again.
  • Evaporator dish 6 and evaporator 12 are in 2 in an enlarged section and in 3 shown in a partially exploded view.
  • the evaporator 12 is a finned evaporator with an essentially cuboid shape.
  • a plate-shaped defrost heater 15 extends on the underside of the evaporator 12.
  • the defrost heater 15 comprises a heat distribution plate 16 made of sheet metal and a heating pipe 17 which is laid on the heat distribution plate 16 in serpentine lines.
  • the heat spreader plate 16 slopes down to the downstream wall 13 of the evaporator chamber 6 .
  • the lower molded body 19 also forms, together with the base plate 49, a base of the evaporator chamber 8, which insulates the evaporator 12 and defrost heater 15 from the storage compartment 7.
  • the lower molded body 19 and the water drainage tray 25 are accommodated in the evaporator tray 6 so that the lower molded body is hidden behind its wall 13 and under the water drainage tray 25 .
  • a trench 20 extends in the transverse direction of the body 1. From the bottom of the trench 20, a passage 21 leads through the wall 13 into the fan chamber 9. From the fan chamber 9, a duct 22 runs through the Rear wall of the body 1 to the outside, in particular to an evaporation tray 23 in a machine room 24 of the body 1.
  • a water drainage tray 25 (see Figures 2, 4 ) is provided in order to collect condensation water flowing through the defrost heater 15 during the defrosting of the evaporator 12 and to direct it to the evaporation tray 23 without it being able to distribute in the shaped body 19 or in gaps between this and the evaporator tray 6 .
  • the water drainage tray 25 comprises a front area 26, which is clamped between the defrost heater 15 and the underlying shaped body 19 in order to collect water flowing off the defrost heater 15, a channel-shaped rear area 27, which extends from the bottom of the trench 20 through a Intermediate space 28 separated, extends over the trench 20 and ends with an end wall 33 resting against the downstream wall 13, and a pipe socket 29 which, starting from the deepest point of the rear area 27, extends through the passage 21 of the wall 13 and whose free end in the pipe 22 engages.
  • the intermediate space 28 under the rear area 27 provides space for a heater which also heats the rear area 27 and the pipe socket 29 during the defrosting of the evaporator 12 in order to ensure that the evaporator 12 has run off Condensed water actually reaches the evaporation tray 23 and does not freeze again beforehand in the rear area 27 or in the pipe socket 29 .
  • a piece of this heater 48 is in 3 shown at the end of the pipe socket 29.
  • FIG. 4 shows the water drainage tray 25 in an individual representation.
  • the in the perspective of 3 The front area 26 facing away from the viewer is flat and delimited at its lateral edges by webs 30 which, in the fully assembled state, rise up on both sides of the heat distribution plate 16 in order to direct condensation water flowing thereon to the rear area 27 without loss.
  • Two brackets 31 projecting from the front portion 26 are provided to attach to a refrigerant line 32 (see Fig. 2 ) of the evaporator 12 and to anchor the water drainage tray 25 on the evaporator 12.
  • the front wall 33 forms the edge of the water drainage tray 25 facing the viewer.
  • Two fastening projections 36 protrude from a surface 34 of the end wall 33 facing the viewer, adjacent to its upper edge 35 .
  • the upper edge 35 is cut out in the middle between the two fastening projections 36 in order to leave room for an intake connection piece 37 (see Fig. Figures 1, 2 ).
  • the surface 34 is flat and vertical.
  • the attachment projections 36 extend through openings 41 formed in the downstream wall 13 on either side of the intake manifold 37 .
  • figure 5 Fig. 4 shows a top view of such an opening 41 and the fastening projection 36 engaging therein; 6 shows a longitudinal section through a fastening projection 36 and its surroundings.
  • the fastening projections 36 are perpendicular to the surface 34 of the end wall 33, in the sectional plane of 6 axis 38 are rotationally symmetrical and each have a stem 39 and a head 40 with a flat frustoconical rear surface 42 facing surface 34 (see Fig. 6 ).
  • the rear area 27 is elastically pretensioned so that the fastening projections 36 press against an upper edge 46 of the openings 41 from below.
  • the stem 39 is shorter than the wall thickness d of the downstream wall 13 so that the rear surfaces 42 at the top edges of the openings 41 have an outer, ie facing away from the evaporator chamber 8, touch surface 43 of the downstream wall 13 and on this along a tangential to the rear surface 42 plane 44 up to the position of 6 sliding along in which the rear surface 42 and the outer surface 43 touch at a contact point 50 of the upper edge 46 and the surface 34 of the end wall 33 abuts the inner surface 45 of the downstream wall 13 in close contact. If frost deposited on this inner surface 45 above the edge 35 defrosts, the condensation water can only flow away from there into the water drainage tray 25; the path into gap 28 is blocked by contact of downstream wall 13 and end wall 33 .

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)
  • Removal Of Water From Condensation And Defrosting (AREA)
EP17195960.4A 2016-10-14 2017-10-11 Kältegerät mit verdampferkammer und kondenswasserableitung Active EP3309482B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17195960T PL3309482T3 (pl) 2016-10-14 2017-10-11 Urządzenie chłodzące z komorą parownika i odprowadzeniem wody kondensacyjnej

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016220158.1A DE102016220158A1 (de) 2016-10-14 2016-10-14 Kältegerät mit Verdampferkammer und Kondenswasserableitung

Publications (2)

Publication Number Publication Date
EP3309482A1 EP3309482A1 (de) 2018-04-18
EP3309482B1 true EP3309482B1 (de) 2022-01-26

Family

ID=60080717

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17195960.4A Active EP3309482B1 (de) 2016-10-14 2017-10-11 Kältegerät mit verdampferkammer und kondenswasserableitung

Country Status (3)

Country Link
EP (1) EP3309482B1 (pl)
DE (1) DE102016220158A1 (pl)
PL (1) PL3309482T3 (pl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110579071B (zh) 2019-09-12 2020-11-20 青岛海尔电冰箱有限公司 蒸发器安装结构改进的冰箱
US11994335B2 (en) * 2021-12-29 2024-05-28 True Manufacturing Co., Inc. Self-contained reach-in refrigerator
CN116412621A (zh) * 2021-12-30 2023-07-11 合肥美的电冰箱有限公司 排水板、风道组件、箱胆及制冷设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5912539Y2 (ja) * 1979-12-18 1984-04-16 三洋電機株式会社 冷蔵庫
US6363736B1 (en) * 2001-03-21 2002-04-02 White Consolidated Industries, Inc. Condensate evaporator pan
JP4082933B2 (ja) * 2002-06-03 2008-04-30 ホシザキ電機株式会社 冷却庫
DE102006015994A1 (de) * 2006-04-05 2007-10-11 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Abtauheizung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3309482A1 (de) 2018-04-18
PL3309482T3 (pl) 2022-05-02
DE102016220158A1 (de) 2018-04-19

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