EP3111090A1 - Compresseur alternatif hermétique avec installation d'amortissement des vibrations améliorée - Google Patents

Compresseur alternatif hermétique avec installation d'amortissement des vibrations améliorée

Info

Publication number
EP3111090A1
EP3111090A1 EP14708836.3A EP14708836A EP3111090A1 EP 3111090 A1 EP3111090 A1 EP 3111090A1 EP 14708836 A EP14708836 A EP 14708836A EP 3111090 A1 EP3111090 A1 EP 3111090A1
Authority
EP
European Patent Office
Prior art keywords
compressor
stator
reciprocating compressor
spring
hermetic reciprocating
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Withdrawn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
EP14708836.3A
Other languages
German (de)
English (en)
Inventor
Ismail YESILAYDIN
Erhan Kasapoglu
Zafer OYAR
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of EP3111090A1 publication Critical patent/EP3111090A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0044—Pulsation and noise damping means with vibration damping supports
    • 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
    • F04B39/127—Mounting of a cylinder block in a casing

Definitions

  • the present invention relates to a hermetic reciprocating compressor for use in a refrigeration appliance, in particular a domestic refrigerator.
  • the present invention more particularly relates to a damping facility for damping vibrations generated by a compressor-kit accommodated inside a casing.
  • a compact compressor increases the utilizable volume of the refrigeration appliance. This is also an important factor for improving customer benefit.
  • design limitations and operational constraints generally prevent attaining a significant reduction in the size and the weight of the compressor.
  • Fig. 1 shows a conventional reciprocating compressor (1 ⁇ ).
  • the conventional reciprocating compressor (1 ⁇ ) has a compressor-kit, a casing which accommodates the compressor-kit and a damping mechanism for damping vibrations of the compressor-kit.
  • the compressor-kit includes: a cylinder block (2 ⁇ ) which has a compression chamber, a cylinder head (3 ⁇ ), a valve assembly which is arranged between the cylinder block (2 ⁇ ) and the cylinder head (3 ⁇ ), a piston head which is reciprocatingly arranged inside the compression chamber, a piston rod which is coupled to the piston head, a crank shaft (4 ⁇ ) which is rotatably arranged into the cylinder block (2 ⁇ ) and eccentrically coupled to the piston rod, a rotor (5 ⁇ ) which is fixed on the crank shaft (4 ⁇ ) and an annular shaped stator (6 ⁇ ) which is arranged coaxially around the rotor (5 ⁇ ) and fixed to the cylinder block (2 ⁇ ).
  • the damping mechanism includes four springs (7 ⁇
  • a problem with the reduction of the size of the constituent parts of the compressor is that such modifications generally result in a significant amount of loss of the refrigeration capacity and/or degradation in the compressor performance.
  • An objective of the present invention is to provide a hermetic reciprocating compressor which overcomes the aforementioned problems of the prior art and which has a damping mechanism that enables a reduction in size without compromising a compressor performance, in particular a damping performance
  • the damping means includes a compression coil spring which is coaxially arranged with respect to the stator and which supports the compressor kit.
  • a lower end of the spring is coupled to a bottom of the casing and an upper end of the spring is circumferentially coupled to a peripheral portion of the stator.
  • the hermetic reciprocating compressor comprises a pair of separate coupling means which are utilized to respectively couple the casing and the stator via the compression coil spring.
  • both coupling means have an annular-shaped frame structure which match the shape of the opposing ends of compression coil spring.
  • the coupling means between the stator and the compression coil spring is dispensed with.
  • the upper end of the spring is directly fitted around the peripheral portion of the stator and is retained in place with its own clamping force.
  • the peripheral portion of the stator is formed by a plurality of steel laminations which are insulated by an insulating material. The upper end of the spring is directly fitted around the insulated steel laminations.
  • the damping means includes a single compression coil spring.
  • the compressor-kit has been coupled to the bottom of the casing through a centered compression coil spring, namely a compression coil spring which is coaxially aligned with the stator and the rotational axis of the rotor and the crank shaft.
  • a centered compression coil spring is circumferentially coupled to a peripheral portion of the stator, a stable configuration with a low center of mass has been attained. Thereby, a height of the compressor has been reduced so that a smaller casing can be utilized.
  • the centered compression coil spring has a diameter which is larger than that of the conventional springs shown in Fig. 1.
  • the centered compression coil spring has a sufficient stuffiness to support the compressor-kit and absorbs the vibrations more smoothly. Thereby, a damping performance has been improved.
  • the damping facility of the present invention the number of separate contacts to be established between the casing and the compressor-kit during an assembly process has been reduced. This configuration substantially simplifies the assembly process and saves costs.
  • Figure 1 – is a schematic cross sectional view of a conventional hermetic reciprocating compressor, taken along a vertical direction,
  • Figure 2 – is a schematic partial side view of a hermetic reciprocating compressor according to an embodiment of the present invention prior to mounting a crank shaft together with a rotor to a cylinder block,
  • Figure 3 – is a schematic exploded perspective view of the hermetic reciprocating compressor shown in Fig. 2,
  • Figure 4 – is a schematic partial side view of a hermetic reciprocating compressor according to another embodiment of the present invention prior to mounting the crank shaft together with the rotor to the cylinder block,
  • Figure 5 – is a schematic exploded perspective view of the hermetic reciprocating compressor shown in Fig. 4.
  • the hermetic reciprocating compressor (1) comprises a compressor-kit which includes a cylinder block (2) which has a compression chamber, a cylinder head (3), a valve assembly which is arranged between the cylinder block (2) and the cylinder head (3), a piston head which is reciprocatingly arranged within the compression chamber, a piston rod which is coupled to the piston head, a crank shaft (4) which is rotatably arranged into the cylinder block (2) and eccentrically coupled to the piston rod, a rotor (5) which is fixed on the crank shaft (4) and an annular shaped stator (6) which is coaxially arranged around the rotor (5) and fixed to the cylinder block (2), a casing which accommodates the compressor-kit and a damping means for damping vibrations of the compressor-kit (Figs. 2 to 5).
  • the damping means includes a compression coil spring (7) which is coaxially arranged with respect to the stator (6) and configured to support the compressor-kit.
  • a lower end (7a) of the spring (7) is coupled to a bottom of the casing and an upper end (7b) of the spring (7) is circumferentially coupled to a peripheral portion (6a) of the stator (6) (Figs. 2 to 5).
  • the hermetic reciprocating compressor (1) comprises a lower coupling means (8) which is firmly attached to the bottom of the casing and configured to circumferentially hold the lower end (7a) of the spring (7) (Figs. 2 to 5).
  • the lower coupling means (8) has an annular-shaped frame which matches the shape of the lower end (7a) of the compression coil spring (7).
  • the lower coupling means (8) is made from plastic.
  • the hermetic reciprocating compressor (1) comprises an upper coupling means (9) which is circumferentially attached to the peripheral portion (6a) of the stator (6) and configured to circumferentially hold the upper end (7b) of the spring (7) (Figs. 2 and 3).
  • the upper coupling means (9) has also an annular-shaped frame which matches the shape of the compression coil spring (7) and a peripheral portion (6a) of the stator (6) so that the annular-shaped frame can be sleeved onto the peripheral portion (6a) while firmly holding the upper end (7b) of the spring (7).
  • the upper coupling means (9) is also made from plastic.
  • the upper coupling means (9) is not used.
  • the upper end (7b) of the spring (7) is directly fitted around the peripheral portion (6a) of the stator (6).
  • an inner diameter of the spring (7) is configured to be slightly smaller than an outer diameter of the peripheral portion (6a) of the stator (6).
  • the peripheral portion (6a) of the stator (6) is formed by a plurality of steel laminations (10).
  • an insulating material (not shown) is provided between the upper end (7b) of the spring (7) and the steel laminations (10) (Figs. 4 and 5).
  • the damping means includes a single compression coil spring (7) (Figs. 2 to 5).
  • the single compression coil spring (7) is made of one piece.
  • the present invention also provides a refrigeration appliance (not shown) which comprises the hermetic reciprocating compressor (1).
  • the refrigeration appliance is provided as a domestic refrigerator (not shown).
  • the present invention provides a hermetic reciprocating compressor (1) which has a damping facility that stably supports the compressor-kit. Due to the low center of mass of the above-described configuration, a height of the compressor (1) has been reduced and, thus, a smaller casing can be utilized. This configuration substantially simplifies the assembly process and saves costs. Also due to the coaxially arranged compression coil spring (7) the vibrations can be absorbed more smoothly.
  • the damping facility of the present invention is particularly suited for use in compact compressors (1) in which the constituent parts have a relatively low weight and, thus, generate less vibrations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

La présente invention porte sur un compresseur alternatif hermétique (1) qui comporte un ensemble compresseur, une enveloppe qui reçoit l'ensemble compresseur et un moyen d'amortissement pour amortir les vibrations dans l'ensemble compresseur. Dans le compresseur alternatif hermétique (1) selon la présente invention, le moyen d'amortissement comprend un ressort hélicoïdal de compression (7), qui est disposé de façon coaxiale par rapport au stator (6) et qui est configuré de façon à porter l'ensemble compresseur. Une extrémité inférieure (7a) du ressort est couplée à un fond de l'enveloppe, et une extrémité supérieure (7b) du ressort (7) est couplée de façon périphérique à une partie périphérique (6a) du stator (6).
EP14708836.3A 2014-02-28 2014-02-28 Compresseur alternatif hermétique avec installation d'amortissement des vibrations améliorée Withdrawn EP3111090A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/054003 WO2015127998A1 (fr) 2014-02-28 2014-02-28 Compresseur alternatif hermétique avec installation d'amortissement des vibrations améliorée

Publications (1)

Publication Number Publication Date
EP3111090A1 true EP3111090A1 (fr) 2017-01-04

Family

ID=50239606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14708836.3A Withdrawn EP3111090A1 (fr) 2014-02-28 2014-02-28 Compresseur alternatif hermétique avec installation d'amortissement des vibrations améliorée

Country Status (2)

Country Link
EP (1) EP3111090A1 (fr)
WO (1) WO2015127998A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017137328A1 (fr) 2016-02-09 2017-08-17 Arcelik Anonim Sirketi Compresseur à fonctionnement silencieux
WO2017157408A1 (fr) 2016-03-14 2017-09-21 Arcelik Anonim Sirketi Prise de borne hermétique et fiche de borne destinées à être utilisées dans un compresseur hermétique
EP4202222B1 (fr) 2021-12-22 2024-06-26 Arçelik Anonim Sirketi Compresseur comprenant un élément d'amortissement de vibrations

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6946461U (de) * 1969-11-28 1970-03-26 Licentia Gmbh Gekapselter motorkompressor
US4200426A (en) * 1978-10-26 1980-04-29 The Trane Company Hermetic compressor assembly including torque reaction leaf spring means
BR0003293A (pt) * 2000-07-17 2002-02-26 Brasil Compressores Sa Sistema amortecedor de vibração para compressor alternativo com motor linear

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015127998A1 *

Also Published As

Publication number Publication date
WO2015127998A1 (fr) 2015-09-03

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