EP2431687B1 - Kühlschrank - Google Patents

Kühlschrank Download PDF

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Publication number
EP2431687B1
EP2431687B1 EP11181359.8A EP11181359A EP2431687B1 EP 2431687 B1 EP2431687 B1 EP 2431687B1 EP 11181359 A EP11181359 A EP 11181359A EP 2431687 B1 EP2431687 B1 EP 2431687B1
Authority
EP
European Patent Office
Prior art keywords
condenser
refrigerator
machine room
region
inlet ports
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
EP11181359.8A
Other languages
English (en)
French (fr)
Other versions
EP2431687A3 (de
EP2431687A2 (de
Inventor
Chanho Jeon
Juyeong Heo
Sunam Chae
Sung Jhee
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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
Priority claimed from KR1020100091235A external-priority patent/KR101726223B1/ko
Priority claimed from KR1020100091236A external-priority patent/KR101810456B1/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP2431687A2 publication Critical patent/EP2431687A2/de
Publication of EP2431687A3 publication Critical patent/EP2431687A3/de
Application granted granted Critical
Publication of EP2431687B1 publication Critical patent/EP2431687B1/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
    • F25D23/00—General constructional features
    • F25D23/003—General constructional features for cooling refrigerating machinery
    • 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
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • F25D19/04—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors with more than one refrigeration unit
    • 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
    • F25D2321/141—Removal by evaporation
    • F25D2321/1411—Removal by evaporation using compressor heat
    • 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
    • F25D2321/141—Removal by evaporation
    • F25D2321/1412—Removal by evaporation using condenser heat or heat of desuperheaters
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0026—Details for cooling refrigerating machinery characterised by the incoming air flow
    • F25D2323/00264—Details for cooling refrigerating machinery characterised by the incoming air flow through the front bottom part
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0026—Details for cooling refrigerating machinery characterised by the incoming air flow
    • F25D2323/00267—Details for cooling refrigerating machinery characterised by the incoming air flow through the side
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0027—Details for cooling refrigerating machinery characterised by the out-flowing air
    • F25D2323/00271—Details for cooling refrigerating machinery characterised by the out-flowing air from the back bottom

Definitions

  • This specification relates to a refrigerator having a machine room for accommodating a refrigerant compression cycle apparatus such as a compressor and a condenser.
  • a refrigerator in general, includes a plurality of storage spaces for keeping, for example, food therein, and a refrigerant compression cycle apparatus for maintaining the storage spaces in a predetermined temperature range by supplying cold air into the storage spaces.
  • Several components of the refrigerant compression cycle apparatus are disposed in a separate space, namely, a machine room, partitioned from the storage spaces.
  • the machine room is generally located at a lower portion of a rear surface of a refrigerant main body.
  • the machine room accommodates a compressor to compress a refrigerant, a condenser to condense the compressed refrigerant, a blow fan and the like.
  • a compressor to compress a refrigerant
  • a condenser to condense the compressed refrigerant
  • a blow fan and the like.
  • the inside of the machine room should be maintained within an appropriate temperature range.
  • external air should continuously be supplied into the machine room, and the supplied external air should be smoothly drawn out.
  • a machine room for a typical refrigerator has an inlet port for introduction of external air and an outlet port for discharge of air.
  • the machine room has a fan to generate air flow through the inlet port and the outlet port.
  • a rotation speed (RPM) or size of the fan may be increased, but it may cause an increase in power consumption and generation of noise.
  • RPM rotation speed
  • the size (capacity) of the machine room should be increased, but it may result in a decrease of a storage space. Consequently, there is a limitation in the increase in the capacity of the machine room. Therefore, air exhaust efficiency is deteriorated due to installation of many components within the limited machine room.
  • JPH07146054A describes, inside the main body of a refrigerator, a refrigerating cycle apparatus constructed of a compressor, a main condenser, an evaporator, connected sequentially in a closed loop.
  • the compressor and a fan device supplying cooling air thereto are provided inside a machine chamber provided on the back side of the bottom part of the main body.
  • An oil condenser which cools down a refrigerant discharged from the compressor and then returns it to the compressor so as to cool down a compressor oil is attached to the refrigerating cycle.
  • the oil condenser is provided in the vicinity of a heat exhaust port formed in the upper part of a back cover in the machine chamber.
  • CN1839288A describes a refrigerator including a machine room formed on a lower part of a rear of a main body of the refrigerator; a refrigerant compressor installed offset to one side in the machine room in a width direction; and a cooler for receiving a refrigerant from the refrigerant compressor and cooling an inside of a storage chamber; wherein the cooler is arranged inside the refrigerator via a heat insulating wall of the main body above the refrigerant compressor arranged on one side of the machine room and at a position on an opposite side of the refrigerant compressor in a width direction; and control and power source boards of the refrigerator are arranged in another wide space of the refrigerant compressor in the machine room in a width direction.
  • DE102008045779A1 describes a refrigerator having a main body cabinet, wherein the main body cabinet includes a first storage area, a second storage area adjacent to the first storage area, and a receiving portion which is disposed in a lower part of the first and second storage areas.
  • the receiving part includes a device region arranged on at least a portion of the lower part of the first storage area, a compressor for compressing a refrigerant, and a free receiving space for receiving an article for storage.
  • an aspect of the detailed description aims to provide a refrigerator capable of minimizing an increase in a capacity of a machine room and increasing radiation efficiency.
  • a refrigerator according to claim 1 is disclosed.
  • a refrigerator in the first embodiment, includes a refrigerator main body 100, which is partitioned into a refrigerating chamber 110, a freezing chamber 120 and a machine room 130, and a refrigeration cycle apparatus 200 having a plurality of components, some of which are installed in the machine room 140.
  • the refrigerating chamber 110 and the freezing chamber 120 are partitioned by a first barrier 131, which is erected within the refrigerator main body 100.
  • the machine room 140 is be located below the refrigerating chamber 110 and the freezing chamber 120 within a rear side of the refrigerator main body 100.
  • a lower frame 160 is installed at the bottom of the refrigerator main body 100.
  • the machine room 140 includes a first region 1 located between the refrigerating chamber 110 and the lower frame 160, and a second region 2 located below the refrigerating/freezing chamber 110/120.
  • a lower surface of the refrigerating/freezing chamber 110/120 is inclined such that its height can be increased towards an upper side at the right side in FIG. 2 .
  • the condenser 220 of the refrigeration cycle apparatus 200 is disposed in the first region 1, and two compressors 210 are disposed in parallel in the second region 2.
  • the refrigerator main body 100 includes an insulation foam 300 for blocking heat transfer from the inner space to the exterior.
  • the insulation foam 300 is located between the refrigerating chamber 110 or the freezing chamber 120 and an outer surface of the main body 100. Based on a lower portion of the main body 100, the insulation foam 300 is located between the refrigerating chamber 110 or the freezing chamber 120 and the lower frame 160.
  • the insulation foam 300 is formed by foaming urethane, and detailed description thereof will be omitted.
  • the insulation foam 300 located below the refrigerating chamber 110 has an insertion groove 310 in which the condenser 220 is inserted.
  • the insertion groove 310 defines an approximately rectangular parallelepiped space, in which the condenser 220 may be disposed to face a ground surface of a space where the refrigerator main body 100 is installed. That is, the condenser 220 is located in the first region 1.
  • a condenser cover 400 is installed at the lower frame 160 where the condenser 220 is located.
  • the condenser cover 400 opens or closes an opening 161 formed at the lower frame 160, is coupled to the lower frame 160 by bolts.
  • the condenser cover 400 has a cover body 410 having an approximately rectangular parallelepiped shape.
  • the cover body 410 has inclined side walls such that its area is gradually narrowed downwardly in FIG. 2 .
  • a plurality of inlet ports 420 are formed through the side walls.
  • the inlet ports 420 includes front inlet ports 421 facing a front surface of the refrigerator, namely, a side where doors for opening or closing the refrigerating chamber 110 and the freezing chamber 120 are disposed, and side inlet ports 422 facing right and left sides of the refrigerator main body 100.
  • the side inlet ports 422 may not be formed all over the side walls of the cover body 410, but formed only at a first half located at the front (i.e., corresponding front portions of the side walls, which are located close to the front). Accordingly, it is possible to prevent direct introduction of exhaust air present within a rear end region of the refrigerator main body 100, in which the compressors 210 are located, and allow introduced air to evenly flow through the entire surface of the condenser 220.
  • the inlet ports 420 allow for formation of a passage (a), such that external air at the front of the refrigerator main body 100 can be guided into the condenser 220 via the lower portion of the refrigerator main body 100.
  • the second region 2 may communicate with the first region 1.
  • the second region 2 may be shown having two compressors 210 and 212 disposed in parallel in right and left directions of the refrigerator main body 100.
  • the two compressors 210 and 212 may be mounted on the lower frame 160.
  • the second region 2 may be shown having a blow fan 230 mounted at a right side of the compressor 212 (based on FIG. 1 ).
  • the blow fan 230 may be located below the freezing chamber 120, and fixed onto the lower frame 160.
  • the condenser and the compressors of the refrigerant compression cycle apparatus 200 in the first exemplary embodiment are disposed within the machine room 140 partitioned into the refrigerating chamber 110 and the freezing chamber 120.
  • the machine room 140 may be divided into the first region 1 and the second region 2.
  • the first region 1 may be lower than the second region 2 in height, thereby minimizing the capacity occupied by the machine room 140.
  • the first region 1 is formed similar to the shape of the condenser 220. Hence, the capacity occupied by the machine room 140 can be more reduced as compared to the related art structure that the compressor and the condenser are disposed in the same region.
  • the condenser 220 may be cooled by external air introduced via the inlet ports 420 of the condenser cover 400, which is installed at the opening 161 of the lower frame 160. That is, the external air introduced into the machine room initially contacts the condenser 220 to exchange heat, accordingly, the condenser 220 having a relatively great heat emission load can be effectively cooled.
  • Such external air introduced via the inlet ports 420 of the condenser cover 400 may cool the condenser 220 in the first region 1, and flow into the second region 2.
  • a connected portion between the first region 1 and the second region 2 may have a shape like a diffuser, which is gradually increased in height. Hence, the external air can be evenly diffused into the second region 2.
  • the diffused external air may cool the pair of compressors 210 and 212 in a sequential manner.
  • a compressor located at the upstream of the air passage may emit heat relatively smoothly. Therefore, a compressor for taking care of a region with a large cooling load, of the compressors, may be disposed at the upstream of the external air flow.
  • the external air passed through the two compressors in the sequential manner may then flow through the blow fan 230 and thereafter be discharged to the rear side of the refrigerator main body 100 via the outlet portions 151, which are formed through the rear cover 150 covering the machine room 140 at the rear of the refrigerator main body 100.
  • the present disclosure may not be limited to the aforementioned structure, but also applicable to a structure that the blow fan is located between the two compressors.
  • FIGS. 7 and 8 show an example refrigerator useful for understanding the disclosure.
  • the same or equivalent components will be provided with the same reference numbers, and description thereof will not be repeated.
  • two compressors 210 and 212 and a blow fan 230 may be disposed within the machine room 140 in the right and left directions of the refrigerator.
  • the blow fan 230 may be located between the two compressors 210 and 212.
  • a tasking space can be ensured upon connecting a refrigerant pipe or the like to the compressors, thereby facilitating an assembly task.
  • the blow fan 230 may be installed after completely assembling the compressors.
  • a first defrosted water storing container 510 may be installed between the two compressors 210 and 212.
  • the first defrosted water storing container 510 may serve to temporarily collect and store defrosted water generated from an evaporator, which manages cooling of the refrigerating chamber 110.
  • a space previously ensured by installation of the blow fan 230 can be utilized, and accordingly the capacity of the machine room 140 can be more reduced.
  • the blow fan 230 may alternatively be disposed above the first defrosted water storing container 510.
  • a second defrosted water storing container 520 for collecting defrosted water generated from an evaporator, which manages cooling of the freezing chamber 120, may further be disposed.
  • the second defrosted water storing container 520 may be located above the compressor 212.
  • a pipe P may be disposed above each of the defrosted water storing containers 510 and 520, so as to guide defrosted water generated from each evaporator into each of the defrosted water storing containers 510 and 520.
  • the water stored in the respective defrosted water storing containers may contribute to lowering an internal temperature of the machine room. That is, the defrosted water, which is transferred from the evaporators, has a relatively low temperature, so as to lower the internal temperature of the machine room. Also, the defrosted water may partially be evaporated by the external air passed through the machine room, and accordingly adsorb evaporation heat, which results in further lowering the internal temperature of the machine room.

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  • 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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Claims (5)

  1. Kühlschrank, umfassend:
    einen Kühlschrank-Hauptkörper (100) mit einer Kühlkammer (110), einer Gefrierkammer (120) und einem Maschinenraum (140), um mindestens einen Teil einer Kühlkompressionszyklus-Vorrichtung (200) aufzunehmen;
    einen Kondensator (220), der innerhalb des Maschinenraums angeordnet ist;
    einen unteren Rahmen (160), der am Boden des Kühlschrank-Hauptkörpers (100) installiert ist;
    mindestens einen Kompressor (210, 212), der innerhalb des Maschinenraums (140) angeordnet ist; und
    ein Gebläse (230), das eingerichtet ist, um externe Luft in den Maschinenraum (140) einzubringen und dann aus dem Maschinenraum abzuführen;
    einen Isolierschaum (300), der zwischen der Kühlkammer (110) oder der Gefrierkammer (120) und dem unteren Rahmen (160) angeordnet ist, wobei der Isolierschaum aus geschäumtem Urethan gebildet ist;
    eine Kondensatorabdeckung (400), die am unteren Rahmen (160) installiert ist, wobei der Kondensator (220) mit einer Vielzahl von Einlassöffnungen (420) zum Einbringen von externer Luft durch diese angeordnet und versehen ist; und wobei das Gebläse (230) eingerichtet ist, um einen Luftdurchlass zu bilden, durch den externe Luft, die durch den Kondensator (220) geführt wird, dem mindestens einen Kompressor (210, 212) zugeführt und aus dem Maschinenraum abgeführt wird;
    wobei der Maschinenraum (140) versehen ist mit einer ersten Zone, die zwischen der Kühlkammer (110) und dem unteren Rahmen (160) angeordnet ist, und einer zweiten Zone, die unter der Kühlkammer und Gefrierkammer (110, 120) angeordnet und mit der ersten Zone verbunden ist, wobei der Kondensator (220) in der ersten Zone angeordnet ist, und der mindestens eine Kompressor (210, 212) in der zweiten Zone angeordnet ist,
    wobei der Isolierschaum (300) mit einer Einsetzrille (310) versehen ist, in die der Kondensator (220) eingesetzt ist,
    wobei die Kondensatorabdeckung (400) an einer Öffnung (161) installiert ist, die am unteren Rahmen (160) gebildet ist, um eine Außenseite des Kondensators (220) abzudecken, so dass, wenn die externe Luft in die Kondensatorabdeckung (400) durch die Einlassöffnungen (420) der Kondensatorabdeckung (400) eingebracht wird, sie den Kondensator (220) in der ersten Zone kühlt, und dann in die zweite Zone strömt, um den mindestens einen Kompressor (210, 212) zu kühlen.
  2. Kühlschrank nach Anspruch 1, wobei die Kondensatorabdeckung (400) eine rechteckige Parallelepipedform mit einer offenen Fläche aufweist, die dem Kondensator (220) zugewandt ist.
  3. Kühlschrank nach Anspruch 2, wobei die Vielzahl von Einlassöffnungen (420) umfasst:
    vordere Einlassöffnungen (421), welche durch eine Seitenwand der Kondensatorabdeckung gebildet sind, die einer vorderen Fläche des Kühlschranks zugewandt ist; und
    seitliche Einlassöffnungen (422), welche durch Seitenwände der Kondensatorabdeckung gebildet sind, die Seitenflächen des Kühlschranks zugewandt sind,
    wobei das Luftgebläse an der hinteren Seite des Kühlschrank-Hauptkörpers (100) mehr als die vorderen und seitlichen Einlassöffnungen (421, 422) angeordnet ist.
  4. Kühlschrank nach Anspruch 3, wobei die vorderen Einlassöffnungen (421) durch eine gesamte Seitenwand der Kondensatorabdeckung (400) gebildet sind, die der vorderen Fläche des Kühlschranks zugewandt ist.
  5. Kühlschrank nach Anspruch 3, wobei die seitlichen Einlassöffnungen (421) durch einen vorderen Abschnitt jeder Seitenwand der Kondensatorabdeckung gebildet sind, die den Seitenwänden des Kühlschranks zugewandt ist.
EP11181359.8A 2010-09-16 2011-09-15 Kühlschrank Active EP2431687B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020100091235A KR101726223B1 (ko) 2010-09-16 2010-09-16 냉장고
KR1020100091236A KR101810456B1 (ko) 2010-09-16 2010-09-16 냉장고

Publications (3)

Publication Number Publication Date
EP2431687A2 EP2431687A2 (de) 2012-03-21
EP2431687A3 EP2431687A3 (de) 2017-12-13
EP2431687B1 true EP2431687B1 (de) 2019-12-11

Family

ID=44651324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11181359.8A Active EP2431687B1 (de) 2010-09-16 2011-09-15 Kühlschrank

Country Status (3)

Country Link
US (1) US20120067075A1 (de)
EP (1) EP2431687B1 (de)
CN (1) CN102401526B (de)

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US11959660B2 (en) * 2021-01-08 2024-04-16 Kentuckiana Curb Company, Inc. System and method for ventilating and dehumidifying a space

Also Published As

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EP2431687A3 (de) 2017-12-13
CN102401526A (zh) 2012-04-04
EP2431687A2 (de) 2012-03-21
CN102401526B (zh) 2014-07-30
US20120067075A1 (en) 2012-03-22

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