EP1556613A1 - Unite compresseur lineaire - Google Patents

Unite compresseur lineaire

Info

Publication number
EP1556613A1
EP1556613A1 EP03758000A EP03758000A EP1556613A1 EP 1556613 A1 EP1556613 A1 EP 1556613A1 EP 03758000 A EP03758000 A EP 03758000A EP 03758000 A EP03758000 A EP 03758000A EP 1556613 A1 EP1556613 A1 EP 1556613A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
compressor unit
linear compressor
piston
unit according
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
EP03758000A
Other languages
German (de)
English (en)
Other versions
EP1556613B1 (fr
Inventor
Matthias Mrzyglod
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 Bosch und Siemens 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 Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1556613A1 publication Critical patent/EP1556613A1/fr
Application granted granted Critical
Publication of EP1556613B1 publication Critical patent/EP1556613B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/123—Fluid connections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S181/00—Acoustics
    • Y10S181/403—Refrigerator compresssor muffler

Definitions

  • the present invention relates to a linear compressor unit which can be used in particular for compressing a refrigerant in a refrigeration device such as a refrigerator, a freezer or the like.
  • Reciprocating compressors driven by rotary motors are conventionally used in household refrigeration devices. For use in households, it is very important that such compressors generate minimal running noise.
  • An important source of such noises is the intermittent suction of the refrigerant to be compressed due to the reciprocating movement of the piston. This intermittent suction causes pulsations that must be reduced by appropriate damping devices.
  • a common design principle for this is to pass the flow of the gaseous refrigerant through chambers that z. B. are designed as Helmholtz resonators or the like, so that the pulsations are strongly damped and do not reach the outside. These chambers are usually attached directly to the compressor pump. This pump is enclosed in a capsule for noise reduction and attenuation. There is a small distance between the inlet of the chambers and the capsule of the compressor, which allows the passage of refrigerant into the buffer volume of the capsule surrounding the pump.
  • the object of the present invention is to provide a linear compressor unit with an encapsulated cylinder, in which the generation of noise is effectively limited by modulating the passage cross section to the buffer volume.
  • the object is achieved by a linear compressor unit with the feature of claim 1.
  • the throttle element in the passage prevents the excitation of resonances in the buffer volume and thus excessive noise.
  • the throttle element is preferably formed by walls which are attached to the capsule or to the cylinder and engage in one another.
  • the walls can be of any suitable shape to cause pressure drops on gas flowing between the inlet opening and the buffer volume due to friction on them. Walls which surround the inlet opening or the inlet passage in a ring-shaped and concentric manner are preferred.
  • the cylinder itself preferably has one or more sound-absorbing chambers between its inlet opening and a working chamber receiving the piston. Intensive pressure surges generated by the piston in the working chamber are partially absorbed even before they reach the passage to the buffer volume.
  • Another useful sound-absorbing measure is to insert a sound-absorbing chamber through which the medium to be compressed flows, into the inlet passage of the capsule.
  • This chamber can be attached directly to the wall of the capsule and have a flat cylindrical shape through which the inlet passage runs along the cylinder axis of the chamber.
  • the oscillatable holder of the cylinder is preferably formed by an output line through which compressed medium leaves the cylinder.
  • the output line is preferably guided helically around the cylinder chamber.
  • the magnet which drives the reciprocating movement of the piston can in particular be arranged in the axial extension of the piston or in a ring around the piston.
  • Figure 1 is a schematic partial section through a first embodiment of the linear compressor unit according to the invention.
  • FIG. 2 shows a more detailed section through the head region of the linear compressor unit from FIG. 1;
  • Fig. 3 shows a section through a second embodiment of the linear compressor unit.
  • the linear compressor unit shown in FIG. 1 comprises a hermetically sealed metallic capsule 1 which receives a pump section 2 and a drive section 3 of the compressor unit.
  • the drive section 03 shown in section essentially comprises a rod-shaped permanent magnet 4 which is arranged in the inner cavity of a coil 5 so as to be movable in the longitudinal direction thereof.
  • An alternating current applied to the coil 5 can generate an alternating magnetic field in the interior thereof, which causes the magnet 4 to move back and forth along the axis of the Coil 5 excited.
  • a piston 7 is fixedly mounted on the magnet 4, which engages in a working chamber 8 of a cylinder 9 and can be displaced therein by the movement of the magnet.
  • a valve 10, 11 On a wall of the working chamber 8 opposite the piston 7, two openings are each equipped with a valve 10, 11.
  • the valves 10, 11 are shown here as a flap or lamella valve, but it goes without saying that any type of valve can be used which has a flow of medium in one direction only - into the working chamber 8 in the case of the valve 10 and out of it in the case of valve 11 - allows.
  • Medium to be compressed reaches the working chamber 8 via an inlet passage 12 in the form of a tube piece which crosses the capsule 1 and is firmly anchored therein, an inlet opening 13 of the cylinder 9 and a series of chambers 14, 15, 16 which are in the housing of the cylinder 9 of the working chamber 8 are upstream.
  • the inlet opening 13 of the cylinder 9 is located at the end of a pipe socket 17 which protrudes from an end wall of the cylinder 9 in a direction parallel to the direction of movement of the magnet 4 and the piston 7.
  • This pipe socket 17 is flush with a second pipe socket 18, which forms the part of the inlet passage 12 which engages inside the capsule 1.
  • the pipe socket 18 carries a radially projecting flange 19, on which a plurality of cylindrical walls 20 are arranged concentrically to the longitudinal axis of the inlet passage 12.
  • Corresponding walls 21 with suitably staggered diameters are attached to the end face of the cylinder 9 and each engage between two of the walls 20.
  • Compressed medium leaves the working chamber 8 via an outlet line 22, which is fastened at one end to the cylinder 9, extends helically around the cylinder 9 and finally crosses the wall of the capsule 1.
  • This outlet line 22 simultaneously forms a suspension of the cylinder 9 in the capsule 1, which permits oscillatory movements of the cylinder 9, in particular in the longitudinal direction.
  • the chambers 14, 15, 16 of the cylinder 9 also have sound-absorbing functions. They are designed as Helmholtz resonators in a manner known per se from sound attenuation technology.
  • a further sound-absorbing chamber 25 is inserted into the inlet passage 12 of the capsule 1.
  • This chamber 25, of which a wall is formed by the capsule 1 itself, has a flat cylindrical shape, the inlet passage 12 crossing the chamber 25 along its cylinder axis.
  • the chamber 25 also acts as a Helmholtz resonator with an inlet opening that extends over the entire circumference of the inlet passage 12 and is therefore particularly effective.
  • FIG. 3 shows a second embodiment of the linear compressor unit, which differs from that of FIG. 1 by the design of its drive section 3.
  • the pump sections 2 of both configurations are identical. While in the embodiment of FIG. 1 the 3 is arranged in the axial extension of the piston 7, in the case of FIG. 3 it surrounds the piston 7 in an annular manner and is fixedly connected to it by a flange 28 or individual radially oriented support arms.
  • This ring-shaped magnet 4 is surrounded on the outside by a coil 5, which is able to excite it to vibrate by means of an alternating magnetic field.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

L'invention concerne une unité compresseur linéaire qui comprend un aimant déplaçable selon un mouvement de va-et-vient dans un champ alternatif électromagnétique, un piston (7) entraîné par l'aimant et déplaçable dans un cylindre (9), ainsi qu'une enveloppe (1) qui renferme le cylindre (9) et un volume tampon (24). Le cylindre (9) est monté oscillant dans l'enveloppe (1). Un orifice d'admission (13) du cylindre (9) et un passage d'admission (12) de l'enveloppe (1) se font face sans se toucher en formant un passage (23) vers le volume tampon (24). Un élément d'étranglement (20, 21) est placé dans le passage (23).
EP03758000A 2002-10-22 2003-10-16 Unite compresseur lineaire Expired - Lifetime EP1556613B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10249215A DE10249215A1 (de) 2002-10-22 2002-10-22 Linearverdichtereinheit
DE10249215 2002-10-22
PCT/EP2003/011494 WO2004038221A1 (fr) 2002-10-22 2003-10-16 Unite compresseur lineaire

Publications (2)

Publication Number Publication Date
EP1556613A1 true EP1556613A1 (fr) 2005-07-27
EP1556613B1 EP1556613B1 (fr) 2009-10-07

Family

ID=32102865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03758000A Expired - Lifetime EP1556613B1 (fr) 2002-10-22 2003-10-16 Unite compresseur lineaire

Country Status (11)

Country Link
US (1) US7588424B2 (fr)
EP (1) EP1556613B1 (fr)
KR (1) KR20050059276A (fr)
CN (1) CN100507270C (fr)
AT (1) ATE445101T1 (fr)
AU (1) AU2003274023A1 (fr)
DE (2) DE10249215A1 (fr)
ES (1) ES2332897T3 (fr)
PL (1) PL208290B1 (fr)
RU (1) RU2320893C2 (fr)
WO (1) WO2004038221A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10890169B2 (en) 2017-02-10 2021-01-12 Lg Electronics Inc. Linear compressor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2008275592A1 (en) * 2007-07-10 2009-01-15 Tmg Performance Products, Llc Muffler
US9790937B2 (en) * 2009-08-03 2017-10-17 Koninklijke Philips N.V. Low restriction resonator with adjustable frequency characteristics for use in compressor nebulizer systems
DE102017107599A1 (de) * 2017-04-10 2018-10-11 Gardner Denver Deutschland Gmbh Pulsations-Schalldämpfer für Kompressoren

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
US1496508A (en) * 1921-05-23 1924-06-03 Yoakum Burt Boiler blow-off attachment
DE2414961A1 (de) * 1974-03-28 1975-10-16 Heinrich Dipl Ing Doelz Verdichter
SE438009B (sv) * 1978-10-03 1985-03-25 Dolmar Maschfab Insugs- och/eller avgasljuddempare vid snabbgaende forbrenningsmotorer
US4534861A (en) * 1984-04-30 1985-08-13 Beckman Instruments, Inc. Vacuum pump purging apparatus
JPH0626448A (ja) * 1991-03-18 1994-02-01 Nissan Motor Co Ltd 能動型脈圧吸収装置
JPH04121477U (ja) * 1991-04-16 1992-10-29 サンデン株式会社 フリーピストン型コンプレツサー
US5355108A (en) * 1992-10-05 1994-10-11 Aura Systems, Inc. Electromagnetically actuated compressor valve
KR100224186B1 (ko) * 1996-01-16 1999-10-15 윤종용 선형 압축기
US5952625A (en) * 1998-01-20 1999-09-14 Jb Design, Inc. Multi-fold side branch muffler
US6273688B1 (en) * 1998-10-13 2001-08-14 Matsushita Electric Industrial Co., Ltd. Linear compressor
JP2000161212A (ja) 1998-11-19 2000-06-13 Matsushita Electric Ind Co Ltd リニア圧縮機
JP3662813B2 (ja) * 1999-08-19 2005-06-22 エルジー電子株式会社 リニア圧縮機
CN1317074C (zh) * 2003-03-14 2007-05-23 中国科学院大连化学物理研究所 一种锆基复合氧化物催化剂及制备方法和应用

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004038221A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10890169B2 (en) 2017-02-10 2021-01-12 Lg Electronics Inc. Linear compressor
US11319941B2 (en) 2017-02-10 2022-05-03 Lg Electronics Inc. Linear compressor

Also Published As

Publication number Publication date
DE10249215A1 (de) 2004-05-13
PL208290B1 (pl) 2011-04-29
EP1556613B1 (fr) 2009-10-07
AU2003274023A1 (en) 2004-05-13
US20060153711A1 (en) 2006-07-13
PL374602A1 (en) 2005-10-31
DE50312008D1 (de) 2009-11-19
WO2004038221A1 (fr) 2004-05-06
ES2332897T3 (es) 2010-02-15
CN100507270C (zh) 2009-07-01
US7588424B2 (en) 2009-09-15
RU2005110188A (ru) 2006-01-20
KR20050059276A (ko) 2005-06-17
ATE445101T1 (de) 2009-10-15
RU2320893C2 (ru) 2008-03-27
CN1705824A (zh) 2005-12-07

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