EP2013553A2 - Appareil de refroidissement et/ou de congelation - Google Patents

Appareil de refroidissement et/ou de congelation

Info

Publication number
EP2013553A2
EP2013553A2 EP07724696A EP07724696A EP2013553A2 EP 2013553 A2 EP2013553 A2 EP 2013553A2 EP 07724696 A EP07724696 A EP 07724696A EP 07724696 A EP07724696 A EP 07724696A EP 2013553 A2 EP2013553 A2 EP 2013553A2
Authority
EP
European Patent Office
Prior art keywords
damper
capillary tube
refrigerator
tube
freezer
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Withdrawn
Application number
EP07724696A
Other languages
German (de)
English (en)
Inventor
Roland Schelodetz
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.)
Liebherr Hausgeraete Lienz GmbH
Original Assignee
Liebherr Hausgeraete Lienz 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 Liebherr Hausgeraete Lienz GmbH filed Critical Liebherr Hausgeraete Lienz GmbH
Publication of EP2013553A2 publication Critical patent/EP2013553A2/fr
Withdrawn legal-status Critical Current

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
    • F25D23/00—General constructional features
    • F25D23/006—General constructional features for mounting refrigerating machinery components
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/37—Capillary tubes
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/13—Vibrations

Definitions

  • the present invention relates to a refrigerator and / or freezer, in particular - furniture, such as refrigerator, freezer and the like, with a refrigerant circuit comprising a compressor, a condenser, a capillary tube and an evaporator, wherein the capillary of at least one capillary tube holder in a predetermined position, preferably on the condenser or a pipe connected thereto is held.
  • a refrigerant circuit comprising a compressor, a condenser, a capillary tube and an evaporator, wherein the capillary of at least one capillary tube holder in a predetermined position, preferably on the condenser or a pipe connected thereto is held.
  • Such refrigerators and / or freezers can be improved in several ways.
  • One aspect here is the noise emission.
  • a source of such unwanted noise emissions is the at least one capillary tube of the refrigerant circuit, through which the refrigerant is conveyed.
  • DE 201 04 425 U1 discloses, in the expansion section of the refrigerant circuit, a silencer in the form of a metal fiber plug on the mouth of the capillary tube. Res to minimize in the gas expansion area behind the capillary tube resulting noise.
  • it has been found that such measures can not eliminate all the noise emissions resulting from the capillary tube.
  • the present invention is therefore an object of the invention to provide an improved refrigerator and / or freezer, which avoids the disadvantages of the prior art and further develops the latter in an advantageous manner.
  • a further reduction of unwanted noise emissions in production technology is to be achieved easily realized manner.
  • the capillary tube holder is designed, in particular, as a solid mass damper, which sits on the capillary tube and damps unwanted oscillations of the capillary tube by its mass or its anchoring to a suitable base.
  • the combination of a capillary tube holder and a vibration damper integrated therein makes it possible to achieve further noise minimization in a production-technically simple manner without additional components and also without additional space requirement. Additional capillary tube holders can be saved. In particular, this can be prevented, for example, by capillary tube oscillations implied by pressure fluctuations of the refrigerant in the capillary tube being transferred to the condenser, thereby avoiding any resulting noise.
  • the vibration damper holding the capillary tube can in principle be anchored to various appliance components, advantageously a component the refrigerant circuit is used as a kind of foundation for the capillary tube holder and damper.
  • the capillary tube holding vibration damper may be attached to the condenser.
  • the vibration damper holding the capillary tube is attached to a pipe connected to the condenser, which may be located upstream or downstream of the condenser.
  • the vibration damper holding the capillary tube is seated on a frame heating pipe which is connected to the condenser and heats a moisture-critical area of the device.
  • the damper has in development of the invention at least two mutually substantially parallel receiving channels in which on the one hand, the capillary tube and on the other hand, the other tube of the refrigerant circuit sits on the the damper holds the capillary tube.
  • At least one of the several receiving channels for the capillary tube and another tube of the refrigerant circuit may be formed in the form of a receiving slot, so that the damper can be pushed onto the respective tube until it sits positively in the receiving slot ,
  • the damper is designed to be elastic, so that the damper with the said receiving slot can be clipped onto the respective tube and the tube is held in addition to the positive connection by adhesion in the receiving slot.
  • the receiving slot expands elastically until the tube rises at the bottom of the receiving slot and spring back the already passed slot wall sections.
  • all receiving channels may be formed in the form of such elastic receiving slots, so that the damper on the one hand on the capillary tube and on the other hand on the mounting tube can be pushed transversely.
  • the receiving slots are advantageously aligned to different peripheral sections out.
  • the two receiving slots can be rotated by at least about 90 ° to each other.
  • Other embodiments are of course possible in terms of the angular offset between the receiving slots, especially if more than two receiving slots for receiving, for example, two capillary tubes and a tube of the cooling circuit are provided.
  • a tube wrap of more than 180 °, advantageously about 225 ° or more, may be provided, i. the respective tube is enclosed on more than half of its circumference by the material of the damper and holder.
  • the receiving slots forming the receiving channels may have a preferably circular-segment-shaped cross-sectional widening at the slot bottom into which the respective tube can be inserted with a precise fit.
  • the damper When pushing the damper on the respective tube, the damper is initially expanded elastically, so that the itself too narrow receiving slot fits over the pipe.
  • the widened receiving slot Upon reaching the cross-sectional widening at the slot bottom, the widened receiving slot retracts at least a little way, so that the tube is embedded in an exact fit in the cross-sectional widening.
  • the damper is designed in several parts. This could be used to provide specially adapted support parts.
  • the damper is integrally formed. This simplifies the production and assembly on the one hand. On the other hand, a homogenous distribution of material can have a dampening effect by avoiding artificial vibration nodes.
  • the damper consists of a solid solid material body in which only the receiving slots or recesses for the capillary tube and the further tube are provided, on which the capillary tube is secured by means of the damper.
  • the damper is designed as an extruded profile.
  • the damper can be manufactured as endless material, which is cut to the appropriate damper length.
  • the damper element can be easily adapted to different installation situations. In particular, depending on the installation situation, the respectively available or only the necessary length of the capillary tube can be enclosed by the damper.
  • the damper can be made of different materials.
  • the damper consists of a polymer, in particular a soft plastic, which has a sufficient mass and has favorable damping properties.
  • the damper made of PVC.
  • the damper length can be adapted to the respective installation situation and design of the refrigerant circuit.
  • the ratio of damper length to Kapillarrohrau built during the working condition be greater than 10, preferably even more than 25 in development of the invention.
  • the damper may also have more than two receiving channels, wherein according to an embodiment of the invention, two or more receiving channels for several capillary tubes and another receiving channel for the pipe of the refrigerant circuit to which the damper is attached may be provided , Likewise, however, a plurality of receiving channels can be provided for a plurality of tubes of the refrigerant circuit, so that the damper can be fastened to more than one tube of the refrigerant circuit.
  • the at least one receiving channel for the at least one capillary tube may have a smaller depth into the damper body than the at least one receiving channel for the at least one tube of the refrigerant circuit to which the damper is attached.
  • FIG. 1 shows a schematic representation of a refrigerator and its refrigerant circuit
  • FIG. 2 shows a perspective illustration of a capillary tube holder designed as a vibration damper, by means of which the capillary tube of the refrigerant circuit from FIG. 1 is held on a tube connected to the condenser of the refrigerant circuit,
  • FIG. 3 shows a plan view of the damper of FIG. 2 and the two tubes passing through it
  • FIG. 4 shows a perspective view of a capillary tube holder constructed as a vibration damper according to a further embodiment of the invention, in which two capillary tubes can be fastened to the capillary tube holder,
  • Fig. 5 an end view of the capillary tube holder of Fig. 4, and
  • FIG. 6 shows an end view similar to FIG. 5 of a further capillary tube holder, to which two capillary tubes and two attachment tubes can be fastened.
  • the refrigerator 1 shown in FIG. 1 comprises a device body 2, in the interior of which a cooling compartment and possibly also a freezer compartment may be provided in a manner known per se, and a refrigerant circuit 3 comprising a compressor 4, a condenser 5, arranged in a device carcass niche Capillary tube 6 and an evaporator 7.
  • a refrigerant circuit 3 comprising a compressor 4, a condenser 5, arranged in a device carcass niche Capillary tube 6 and an evaporator 7.
  • Figure 1 shows the arrangement of the components of the refrigerant circuit 3 only schematically and other configurations are possible, even to the effect that other additional components, such as other capillary tubes, two evaporators for a refrigerated compartment and a freezer, or other equipment connected to the condenser.
  • pipe components such as frame heating pipes, solenoid valves and the like may be provided.
  • the capillary tube 6, as shown in FIGS. 2 and 3, has a mass damper trained vibration damper 8 is provided, which simultaneously forms a Kapillarrohrhalter and the capillary tube 6 attached to another tube 9 and holds exactly in a predetermined position.
  • Said tube 9 may in particular be a frame heating tube, wherein the tube 9 typically has a considerably larger, for example more than twice the outer diameter of the capillary tube 6.
  • the vibration damper 8 consists of a one-piece solid material body, which consists in the illustrated embodiment of soft PVC and is designed as an extruded profile, which is first produced as a continuous material and then cut to the appropriate length.
  • the damper 8 may have a length in the range of 1 cm to 20 cm, preferably 5 cm to 15 cm, but the length is adapted to the vibration potential of the installation situation and may possibly assume other values.
  • the vibration damper 8 has - roughly speaking - an approximately cylindrical shape, the outer diameter of which is at least more than 5 times greater than the outer diameter of the capillary tube 6.
  • the vibration damper 8 has two receiving slots 10 and 11, in which on the one hand, the capillary tube 6 and on the other hand, the other tube 9 inserted.
  • the two receiving slots 10 and 11 are aligned parallel to each other, but open to different peripheral portions of the vibration damper 8.
  • the openings of the receiving slots 10 and 11 are offset from each other by about 90 °, see. FIG. 2.
  • the vibration damper 8 is so far elastically formed that it can be pushed with the receiving slots 10 and 11 in the manner of clips on the capillary tube 6 and the other tube 9 under elastic deformation.
  • the flanks of the receiving slots 10 and 11 spring back, so that the tubes in the receiving slots, which form a bed for the respective tube, are enclosed over a circumferential area of more than 180 °.
  • a plurality of capillary tubes 6 can also be attached to the vibration damper 8.
  • the vibration damper 8 in this case has a total of three receiving slots 10a, 10b and 11.
  • the further tube 9 of the refrigerant circuit to which the vibration damper 8 is attached As in the embodiment described above sitting in the receiving slot 11, the further tube 9 of the refrigerant circuit to which the vibration damper 8 is attached.
  • the two other receiving slots 10a and 10b are provided for receiving two capillary tubes 6.
  • the receiving slot 11 for the further tube 9 is dimensioned larger overall than the two further receiving slots 10a and 10b for the capillary tubes, advantageously the slot bottom of the receiving slot 11 being centrally approximately centrally in the cross section of the vibration damper 8.
  • the receiving slots 10a, 10b and 11 each have at their slot bottom a circular segment-shaped cross-sectional expansion, in which the respective tube 6 or 9 is wrapped in the intended, inserted into the respective receiving slot position.
  • the diameter D or d of these cross-sectional widenings on the slot bottom is advantageously adapted to the diameter of the respective tubes to be received, so that the diameter d at the slot bottom of the receiving slots 10a and 10b for the capillary tubes is smaller than the diameter D of the cross-sectional widening of the receiving slot 11 for the other Pipe 9.
  • FIG. 6 shows, according to a further embodiment of the invention not only a plurality of capillary tubes 6 but also a plurality of further tubes 9 can be fastened to the vibration damper 8.
  • two receiving slots 11a and 11b are provided for this purpose, in each of which a further one Tube 9 can be inserted, wherein advantageously in the drawn in Figure 6 embodiment, these receiving slots 11 a and 11 b are arranged symmetrically to each other in the illustrated embodiment opposite each other in cross-section of the vibration damper 8.
  • the capillary tube receiving slots 10a and 10b are also disposed opposite each other but offset from the receiving slots 11a and 11b by 90 °.
  • the capillary tube / capillary tube receiving slots 10 may have a smaller depth than the receiving slots 11 for the further tube 9, i. the capillary tubes 6 sit away from the circumference of the vibration damper 8 less deep in the material of the vibration damper.

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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Vibration Prevention Devices (AREA)
  • Compressor (AREA)

Abstract

La présente invention concerne un appareil de refroidissement et/ou de congélation, notamment un meuble, tel qu'un réfrigérateur, un congélateur et similaires, avec un circuit de fluide caloporteur qui présente un compresseur, un liquéfacteur, un tube capillaire et un évaporateur, le tube capillaire étant maintenu par au moins un dispositif de support de tube capillaire dans une position prédéterminée, de préférence sur le liquéfacteur ou un tube connecté à celui-ci. Conformément à l'invention, le réfrigérateur et/ou le congélateur est caractérisé en ce que le support de tube capillaire est réalisé sous la forme d'un amortisseur de vibrations pour amortir les vibrations du tube capillaire.
EP07724696A 2006-04-28 2007-04-27 Appareil de refroidissement et/ou de congelation Withdrawn EP2013553A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202006006873 2006-04-28
DE202006007921U DE202006007921U1 (de) 2006-04-28 2006-05-17 Kühl- und/oder Gefriergerät
PCT/EP2007/003769 WO2007124937A2 (fr) 2006-04-28 2007-04-27 Appareil de refroidissement et/ou de congelation

Publications (1)

Publication Number Publication Date
EP2013553A2 true EP2013553A2 (fr) 2009-01-14

Family

ID=38460683

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07724696A Withdrawn EP2013553A2 (fr) 2006-04-28 2007-04-27 Appareil de refroidissement et/ou de congelation

Country Status (4)

Country Link
EP (1) EP2013553A2 (fr)
CN (1) CN101432582B (fr)
DE (1) DE202006007921U1 (fr)
WO (1) WO2007124937A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008044215A1 (de) 2008-12-01 2010-06-02 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät sowie Lagepositionierungselement für ein langgesstrecktes Bauteil
CN101975490A (zh) * 2010-07-09 2011-02-16 广东欧科空调制冷有限公司 整体式水源热泵机组
BR102013030048A2 (pt) * 2013-11-22 2015-09-15 Whirlpool Sa dispositivo redutor de ruídos para aparelhos eletrodomésticos
CN216114849U (zh) * 2021-07-26 2022-03-22 合肥海尔电冰箱有限公司 管间固定件、蒸发器及冰箱

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US2687626A (en) * 1952-02-16 1954-08-31 Bohn Aluminium & Brass Corp Heat exchanger having open-sided bore superimposed on closed bore
DE1116247B (de) * 1957-01-26 1961-11-02 Schmoele Metall R & G Rohrelement fuer Waermeaustauscher, bei dem ein Mantel ein Kernrohr und mindestens ein an dessen Umfang anliegendes Aussenrohr kleineren Querschnittes umschliesst
FR1516944A (fr) * 1967-01-20 1968-02-05 Siemens Elektrogeraete Gmbh Machine frigorifique à compresseur incorporée à un réfrigérateur à isolement par mousse plastique
US4163372A (en) * 1977-10-25 1979-08-07 Carrier Corporation Capillary retainer clip
US4778105A (en) * 1984-01-27 1988-10-18 Ranco Incorporated Of Delaware Control device
JPH01181046A (ja) * 1988-01-12 1989-07-19 Matsushita Seiko Co Ltd 空気調和機の冷凍サイクルの減圧装置
CN1064924A (zh) * 1992-05-09 1992-09-30 中国人民解放军第9511工厂 电冰箱消声器
CA2123029C (fr) * 1994-05-06 2002-09-10 Nedo Banicevic Dispositif anti-condensation pour refrigerateur
DE19744740A1 (de) * 1997-10-10 1999-04-15 Aeg Hausgeraete Gmbh Kühl und/oder Gefriergerät mit einem rückseitig angeordneten Verflüssiger
IT243877Y1 (it) * 1998-03-20 2002-03-06 Whirlpool Co Dispositivo ottimizzatore del flusso di fluido refrigerante inviatoad un evaporatore di un circuito di refrigerazione ed agente come
JP2002243286A (ja) * 2001-02-20 2002-08-28 Hitachi Ltd 冷凍サイクルおよび冷蔵庫
CN1191450C (zh) * 2002-06-06 2005-03-02 乐金电子(天津)电器有限公司 电冰箱用防震橡胶
CN1227500C (zh) * 2002-06-06 2005-11-16 乐金电子(天津)电器有限公司 电冰箱用防震橡胶

Non-Patent Citations (1)

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Title
See references of WO2007124937A2 *

Also Published As

Publication number Publication date
DE202006007921U1 (de) 2007-08-30
CN101432582B (zh) 2013-04-24
CN101432582A (zh) 2009-05-13
WO2007124937A3 (fr) 2007-12-27
WO2007124937A2 (fr) 2007-11-08

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