EP0473000A1 - Dispositif de réfrigération - Google Patents

Dispositif de réfrigération Download PDF

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Publication number
EP0473000A1
EP0473000A1 EP19910113579 EP91113579A EP0473000A1 EP 0473000 A1 EP0473000 A1 EP 0473000A1 EP 19910113579 EP19910113579 EP 19910113579 EP 91113579 A EP91113579 A EP 91113579A EP 0473000 A1 EP0473000 A1 EP 0473000A1
Authority
EP
European Patent Office
Prior art keywords
condenser
cooling
shaft
compressor
air
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.)
Granted
Application number
EP19910113579
Other languages
German (de)
English (en)
Other versions
EP0473000B1 (fr
Inventor
Klaus Dipl.-Ing. Erdmann (Fh)
Helmut Dipl.-Ing. Konopa (Fh)
Bringfried Peglow
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.)
BOSCH-SIEMENS HAUSGERAETE GMBH
Coca Cola Co
Original Assignee
Coca Cola Co
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 Coca Cola Co filed Critical Coca Cola Co
Publication of EP0473000A1 publication Critical patent/EP0473000A1/fr
Application granted granted Critical
Publication of EP0473000B1 publication Critical patent/EP0473000B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • F25D2323/00261—Details for cooling refrigerating machinery characterised by the incoming air flow through the back bottom 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

  • the present invention relates to a device for cooling with a compressor arranged in a cooling circuit and a condenser, the compressor being arranged in a niche inside the device housing and the condenser being arranged in a duct which is open to the niche and has air inlet openings in its lower region and has exhaust air openings in its upper region, a shaft wall forming the rear wall of the device housing and the condenser consisting of a tube which is arranged in a plane and is in particular of a serpentine shape, and cooling air enters the shaft through the supply air openings, cools the condenser and through it Exhaust openings from the duct also exit through a lower opening into the niche, cool the compressor, flow through the duct and exit through the exhaust openings.
  • Such a device is preferably suitable in beverage vending machines with which carbonated water is mixed with beverage concentrates to form a soft drink, the starting materials for the soft drink on a Cool the temperature that the drink should have when dispensing from the machine.
  • the device is also suitable for vending machines in which bottles or cans with a ready-made drink are kept at a predetermined temperature that is lower than the ambient temperature.
  • a housing for a domestic drinks machine with a cooling unit consisting of an evaporator and a condenser is already known.
  • the cooling unit and condenser are arranged in a common space within the housing.
  • the condenser which consists of a cooling coil arranged in one plane, stands vertically in the drinks machine housing and is surrounded by vertical walls which form a convection shaft. Air from the surroundings of the vending machine reaches the condenser via supply air openings on the floor of the common room, absorbs heat there and exits the housing via exhaust air openings.
  • the shaft-shaped design of the room in the area of the condenser thus forms a chimney for the cooling air flow.
  • the chimney effect achieved is limited and does not meet increased cooling performance requirements.
  • a device which meets this requirement is characterized in accordance with the invention in that the condenser within the shaft is inclined upwards in the direction of the rear wall of the device housing is arranged.
  • the invention has a number of advantages.
  • the improvement in cooling performance is achieved in a simple manner by means of a fluid mechanically and thermodynamically favorable positioning and assignment of the condenser section and the compressor. This also makes it unnecessary to achieve a relatively high cooling capacity by using a fan which would increase the cooling air flow and thus increase the cooling capacity but would otherwise generate undesirable heat.
  • the solution according to the invention also proves to be energy-saving.
  • the tube forming the condenser consists of straight vertical, mutually parallel tube parts which are connected at their lower and upper ends to semicircular tube parts, and the straight tube parts are thermally conductively connected to straight horizontal, mutually parallel cooling webs.
  • the cooling bars enlarge the surface of the condenser tube and thus improve the cooling capacity of the device.
  • the special arrangement of the condenser tube and cooling webs causes a pronounced swirling of the cooling air flow and thus further contributes to an improved cooling performance of the device.
  • the serpentine tube forming the condenser in its upper region against the rear wall pressing buffer elements made of vibration-damping material.
  • This embodiment of the device according to the invention is characterized in that noises generated by vibrations of the condenser section are largely damped. A fatigue fracture of the tube that occurs when the condenser tube is rigidly supported by compressor vibrations is avoided. This increases the mechanical stability of the connection between the compressor and the condenser section.
  • the housing of the cooling device according to the invention shown in perspective in FIG. 1, preferably consists of flat bleaching parts which are bent at right angles to one another. On its underside, the housing has an opening which opens a niche 3 for a compressor 1.
  • the compressor 1 is mounted on horizontal supports 11. These preferably consist of narrow metal bars, which give the compressor the necessary stable mounting in the housing. At the same time, its narrow design enables the cooling air entering through the lower niche opening to have unhindered access to almost all of it Has bottom of the compressor container.
  • a bleaching part is placed on the back of the housing, which forms the rear wall 41 of the housing and has air slots 5, 6 in its lower and upper region. Cooling air enters the housing through the lower louvers 5. The cooling air impinges on the condenser, the positioning of which is shown diagonally to the rear wall 41 in FIG. 1, schematically by the dash-dot line. After being heated by the condenser, the cooling air leaves the housing through the upper air slots 6. As will be described with reference to FIG.
  • the air flow flowing through the recess opening and the duct 4 which is relatively strongly heated by the compressor 1, promotes the air flow flowing through the lower air slots 5, the duct 4 and the upper air slots 6 and heated by the condenser and thus affects the cooling performance of the device in a positive manner.
  • the sheet metal part on the back of the housing thus forms a convection shaft 4 for the cooling air.
  • the shaft 4 is open to the niche 3 and forms a common space with it.
  • the open niche 3 has at its upper limit a bevel leading to the shaft 4, which leads the air flow from the niche 3 into the shaft 4. Cooling air entering through the lower niche opening passes around the compressor 1, is heated and reaches the shaft 4 via the niche 3. It rises essentially vertically upwards and leaves the housing through the upper air slots 6.
  • the housing of the device stands on feet 12 which are preferably arranged in the corner areas and whose height is dimensioned such that sufficient cooling air can get into the opening of the compressor niche.
  • Figure 2 illustrates the assignment of compressor 1 and condenser 2.
  • the compressor 1 and the condenser 2 are arranged in a cooling circuit, not shown in the figure, which further comprises, in a known manner, an expansion valve and an evaporator arranged in a cooling space.
  • the compressor 1 and the condenser 2 are in a common space inside the device housing. This space is formed by the niche 3 and the adjacent shaft 4.
  • the condenser 2 can in particular consist of a serpentine tube, the shape of which is shown by way of example in FIG. 3.
  • the coil forming the condenser 2 runs in one plane. According to the invention, this plane is arranged obliquely within the shaft 4, in particular obliquely upwards in the direction of the rear wall 41 of the device housing.
  • the air heated by the compressor 1 does not, or only insignificantly, hit the condenser tube coil arranged obliquely in the shaft 4 after it emerges from the recess 3; rather, it arrives - producing a chimney effect - in a direct way to the upper louvers 6 through which it leaves the housing.
  • the inclined plane of the pipe coil can assume various angles with respect to a horizontal plane running through the base point of the condenser section 2, in particular angles of 70 to 85 °.
  • the rear wall 41 of the housing which forms a wall of the shaft 4, has, in addition to the upper air slots 6 from which the heated air exits, further air slots 5 through which cooling air enters the shaft 4 from the outside.
  • Further air slots, in particular supply air fins 51, can be provided on the shaft side walls in the vicinity of the motor-driven compressor 1, which heats up relatively strongly and therefore requires appropriate cooling.
  • the feet 12 at the corners of the device housing are sufficiently high for the required cooling air to reach the opening of the recess 3.
  • cooling webs 9 made of heat-conducting material can be attached to the condenser tube 2, which increase the surface area of the condenser tube and thus accelerate the cooling process.
  • the cooling webs 9 are in particular attached to the top and bottom of the condenser tube.
  • Buffer elements 8 in the upper area of the condenser coil preferably press against the rear wall 41 of the shaft 4 and at the same time against the horizontal shaft cover. So that the coil is elastically supported.
  • the buffer elements 8 are in particular designed as so-called spacer rollers, which concentrically envelop the coil, and consist of vibration-damping material. This design and arrangement in the shaft 4 ensures a mechanically stable, elastic mounting of the condenser coil. Vibrations emanating from the compressor 1 and transmitted to the coil are damped and fatigue fracture of the coil which occurs when the bearing is rigid is avoided.
  • the buffer elements 8 also contribute to noise reduction.
  • cooling air enters the duct 4 through the supply air openings 5, 51 and reaches the condenser 2, which emits thermal energy to the cooling air.
  • the heated air expands and decreases in density. It is replaced by cooler air of higher density.
  • the shaft 4 thus acts as a convection shaft or chimney. The heated air leaves it through the exhaust air openings 6.
  • the inclined arrangement of the condenser tube 2 shown ensures that air, which has already been heated by the condenser, no longer meets the condenser on its way through the duct 4, but rather directly meets the exhaust air openings 6 in the upper region of the duct 4 moves.
  • a vertical arrangement would the condenser coil, the rising cooling air, which is already warming up in the lower area of the coil, also cover the middle and upper areas of the coil and could then only cool it to a small extent.
  • the shaft 4 receives both the air which is relatively strongly heated by the compressor 1 and which emerges from the niche 3 and also the air which cools the condenser 2.
  • the air heated relatively strongly by the compressor 1 generates a negative pressure in the shaft 4 below the condenser tube 2 and thus exerts a suction effect on the air flow entering through the inlet air openings 5, 51, which cools the condenser 2.
  • the air flow cooling the condenser 2 is thus increased and the cooling capacity of the device is improved.
  • FIG. 3 shows a possible embodiment of the condenser coil 2.
  • This consists of straight, parallel vertical pipe sections, each of which are connected at their lower and upper ends by semicircular pipe sections.
  • Cooling webs 9 are attached to the condenser tube 2 in a heat-conducting manner and are preferably arranged horizontally, that is to say perpendicularly to the straight vertical tube parts.
  • the cooling webs 9 contribute in two ways to an improvement in the cooling performance. Firstly, they increase the effective surface area of the condenser tube; on the other hand, the horizontal arrangement of the cooling webs 9 promotes the swirling of the cooling air rising in the shaft.
  • the tube 2 has in its upper region vibration-damping buffer elements 8 which engage in the upper inner edge of the shaft on the rear wall of the housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Rotary Pumps (AREA)
EP91113579A 1990-08-16 1991-08-13 Dispositif de réfrigération Expired - Lifetime EP0473000B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4025984 1990-08-16
DE4025984 1990-08-16

Publications (2)

Publication Number Publication Date
EP0473000A1 true EP0473000A1 (fr) 1992-03-04
EP0473000B1 EP0473000B1 (fr) 1995-04-05

Family

ID=6412372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113579A Expired - Lifetime EP0473000B1 (fr) 1990-08-16 1991-08-13 Dispositif de réfrigération

Country Status (6)

Country Link
US (1) US5228311A (fr)
EP (1) EP0473000B1 (fr)
AT (1) ATE120850T1 (fr)
CA (1) CA2049081C (fr)
DE (1) DE59105093D1 (fr)
GR (1) GR3015707T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012205061A1 (de) 2012-03-29 2013-10-02 BSH Bosch und Siemens Hausgeräte GmbH Kühlkreislauf für ein Kühlgerät
CH718261A1 (de) * 2022-04-01 2022-07-15 V Zug Ag Kühlgerät mit einem über mindestens einem Dämpfungselement angeordneten Verflüssiger

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20005974D0 (no) * 2000-11-24 2000-11-24 Sinvent As Kjöle- eller varmepumpesystem med varmeavgivelse ved endring i temperatur
BR0100723A (pt) * 2001-02-16 2002-11-12 Multibras Eletrodomesticos Sa Condensador para aparelho de refrigeração
KR20030089819A (ko) * 2002-05-20 2003-11-28 엘지전자 주식회사 냉장고 기계실 커버
JP3722109B2 (ja) * 2002-07-05 2005-11-30 ダイキン工業株式会社 空気調和装置の室外ユニット
CA2754768A1 (fr) * 2010-12-08 2012-06-08 Habco Beverage Systems Inc. Appareil de refrigeration avec serpentin d'evaporation tubulaire
CN103062980B (zh) * 2012-12-31 2016-03-30 合肥华凌股份有限公司 用于冰箱的角铁组件和具有其的冰箱
CN103062985B (zh) * 2013-01-30 2016-02-24 合肥美的电冰箱有限公司 用于冰箱的底板组件和具有其的冰箱

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446876A (en) * 1943-05-29 1948-08-10 Admiral Corp Refrigerator cabinet and means for mounting a compressor and condenser therein
US2637178A (en) * 1949-03-17 1953-05-05 Liquid Carbonic Corp Refrigerated storage, dispensing, and display cabinet
US2660037A (en) * 1950-11-13 1953-11-24 Amana Refrigeration Inc Refrigerator construction
US2667762A (en) * 1951-04-26 1954-02-02 Borg Warner Condenser for refrigerating systems
US2687625A (en) * 1952-06-17 1954-08-31 Seeger Refrigerator Co Wire condenser in refrigeration system
US2705877A (en) * 1951-09-22 1955-04-12 Gen Electric Heat transfer apparatus
FR1162098A (fr) * 1956-07-09 1958-09-09 Reiert Aluminium Metall Condenseur s'adaptant sur la paroi arrière d'un réfrigérateur à compression
DE1043358B (de) * 1957-10-05 1958-11-13 Bosch Gmbh Robert An einem Kuehlbehaelter elastisch nachgiebig befestigte Kuehlmaschine
DE1120480B (de) * 1960-07-16 1961-12-28 Linde Eismasch Ag Verfluessiger-Luftfuehrungsanordnung an Kuehlmoebeln, vorzugsweise Kuehlschraenken
DE2521185A1 (de) * 1974-05-13 1975-11-27 Alfons Laemmle Verfahren und vorrichtung zur herstellung eines kuehlmoebels
US3990262A (en) * 1975-12-08 1976-11-09 General Electric Company Natural draft refrigerator including apparatus for permitting the condenser to move between a shipping position and an in-use position

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CH180777A (de) * 1933-03-30 1935-11-15 Platen Munters Refrig Syst Ab Vorrichtung zur Kühlung eines wärmeabgebenden Elementes mittelst Luft.
US2666302A (en) * 1951-04-06 1954-01-19 Nash Kelvinator Corp Refrigerating apparatus and cabinet structure
US2753697A (en) * 1954-11-01 1956-07-10 Whirlpool Seeger Corp Condenser and compressor mountings for household refrigerators
US2880597A (en) * 1956-09-27 1959-04-07 Whirlpool Co Compressor-condenser mountings for household refrigerators
DE1820343U (de) * 1960-08-27 1960-10-27 Linde Eismasch Ag Verfluessiger an kuehl- und gefriermoebeln.
US3379241A (en) * 1965-04-15 1968-04-23 Gen Motors Corp Refrigerator condenser apparatus with funnel shaped flue
JPS4477Y1 (fr) * 1965-06-21 1969-01-06
US3363432A (en) * 1966-09-21 1968-01-16 Westinghouse Electric Corp Bottle water cooler
GB1211274A (en) * 1967-03-21 1970-11-04 Zanussi A Spa Industrie A device for cooling the compressor and condenser of a refrigerator
US3468370A (en) * 1967-11-13 1969-09-23 Temprite Products Corp Water cooler
US3570266A (en) * 1969-06-02 1971-03-16 Gen Electric Refrigerator including ice maker water reservoir
DE6941395U (de) * 1969-10-23 1970-04-16 Bauknecht Gmbh G Kuehlmoebel
DE2138527A1 (de) * 1971-08-02 1973-02-15 Licentia Gmbh Belueftungsblende fuer kuehl- und gefriergeraete
US3827483A (en) * 1973-05-16 1974-08-06 Carrier Corp Heat exchanger
DE7838836U1 (de) * 1978-12-29 1979-04-05 Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart Gehaeuse fuer einen haushalt-getraenkeautomaten
IT211720Z2 (it) * 1987-02-06 1989-04-07 Zanussi Elettrodomestici Apparecchio frigorifero o congelatore domestico con parete di schiena chiudibile.
US4866945A (en) * 1988-08-31 1989-09-19 Bender Richard S Countertop water cooler

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446876A (en) * 1943-05-29 1948-08-10 Admiral Corp Refrigerator cabinet and means for mounting a compressor and condenser therein
US2637178A (en) * 1949-03-17 1953-05-05 Liquid Carbonic Corp Refrigerated storage, dispensing, and display cabinet
US2660037A (en) * 1950-11-13 1953-11-24 Amana Refrigeration Inc Refrigerator construction
US2667762A (en) * 1951-04-26 1954-02-02 Borg Warner Condenser for refrigerating systems
US2705877A (en) * 1951-09-22 1955-04-12 Gen Electric Heat transfer apparatus
US2687625A (en) * 1952-06-17 1954-08-31 Seeger Refrigerator Co Wire condenser in refrigeration system
FR1162098A (fr) * 1956-07-09 1958-09-09 Reiert Aluminium Metall Condenseur s'adaptant sur la paroi arrière d'un réfrigérateur à compression
DE1043358B (de) * 1957-10-05 1958-11-13 Bosch Gmbh Robert An einem Kuehlbehaelter elastisch nachgiebig befestigte Kuehlmaschine
DE1120480B (de) * 1960-07-16 1961-12-28 Linde Eismasch Ag Verfluessiger-Luftfuehrungsanordnung an Kuehlmoebeln, vorzugsweise Kuehlschraenken
DE2521185A1 (de) * 1974-05-13 1975-11-27 Alfons Laemmle Verfahren und vorrichtung zur herstellung eines kuehlmoebels
US3990262A (en) * 1975-12-08 1976-11-09 General Electric Company Natural draft refrigerator including apparatus for permitting the condenser to move between a shipping position and an in-use position

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012205061A1 (de) 2012-03-29 2013-10-02 BSH Bosch und Siemens Hausgeräte GmbH Kühlkreislauf für ein Kühlgerät
CH718261A1 (de) * 2022-04-01 2022-07-15 V Zug Ag Kühlgerät mit einem über mindestens einem Dämpfungselement angeordneten Verflüssiger

Also Published As

Publication number Publication date
DE59105093D1 (de) 1995-05-11
GR3015707T3 (en) 1995-07-31
CA2049081A1 (fr) 1992-02-17
US5228311A (en) 1993-07-20
CA2049081C (fr) 1995-03-14
EP0473000B1 (fr) 1995-04-05
ATE120850T1 (de) 1995-04-15

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