EP0507091A1 - Hermetische Motor-Verdichter-Einheit mit verbessertem Motortragegestell oder -Stützträger - Google Patents

Hermetische Motor-Verdichter-Einheit mit verbessertem Motortragegestell oder -Stützträger Download PDF

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Publication number
EP0507091A1
EP0507091A1 EP92103642A EP92103642A EP0507091A1 EP 0507091 A1 EP0507091 A1 EP 0507091A1 EP 92103642 A EP92103642 A EP 92103642A EP 92103642 A EP92103642 A EP 92103642A EP 0507091 A1 EP0507091 A1 EP 0507091A1
Authority
EP
European Patent Office
Prior art keywords
compressor
motor
frame
wall
compressor unit
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
EP92103642A
Other languages
English (en)
French (fr)
Other versions
EP0507091B1 (de
Inventor
Vittorio Bianchi
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.)
Whirlpool Europe BV
Original Assignee
Whirlpool Europe BV
Whirlpool International BV
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 Whirlpool Europe BV, Whirlpool International BV filed Critical Whirlpool Europe BV
Publication of EP0507091A1 publication Critical patent/EP0507091A1/de
Application granted granted Critical
Publication of EP0507091B1 publication Critical patent/EP0507091B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F04B39/122—Cylinder block

Definitions

  • This utility model relates to a hermetic motor-compressor unit, in particular for use in a refrigerator or the like, comprising a casing containing a compressor frame for supporting a usual electric motor provided with a stator and rotor, and a cylinder within which a piston moves driven by a drive shaft and crank, a compressor head being positioned on said cylinder.
  • a compressor frame can be formed either by casting or from a metal plate by pressing.
  • the first case it is formed integrally with the cylinder and is fixed in known manner to the stator of the electric motor.
  • it comprises a flat body provided with legs or parts projecting perpendicularly from it to be fixed in known manner (by screws) to the electric motor stator.
  • the flat body also comprises a plurality of raised parts in which holes are provided for fixing (by screws or the like) the cylinder within which the piston moves, and a central aperture for receiving a usual drive shaft via a known bearing which embraces it.
  • a frame constructed by casting has various drawbacks, for example it is heavy, and needs considerable chip-forming machining and considerable washing before being used in the compressor. Consequently, to construct this frame in the said manner requires a large number of machines for the said machining. This obviously negatively affects the cost of the finished product.
  • a frame of plate construction provided with seats for its fixing to the electric motor and cylinder overcomes the drawbacks of the cast frame. It has however the serious drawback of involving a relatively lengthy assembly time because of the various points of fixing between it and the other parts of the compressor.
  • An object of the present utility model is therefore to provide a motor-compressor unit of the aforesaid type, in which the compressor frame is constructed by pressing but with a lower construction cost than analogous methods of the state of the art.
  • a further object is to provide a motor-compressor unit having a smaller number of parts than analogous known types.
  • a further object is to provide a motor-compressor unit in which the compressor frame can be fixed to the remaining compressor parts easily and quickly, resulting in a reduction in overall assembly costs of the motor-compressor unit and a corresponding reduction in the finished cost, aided by the reduction in parts to be stocked.
  • a motor-compressor unit of the aforesaid type characterised in that from one end of the compressor frame there rises a wall in which an aperture is provided, said wall being integral with said frame and intended to be fixed to the compressor head, said compressor frame comprising in its flat part a sunken region containing an aperture to allow passage of the drive shaft, said frame being advantageously constructed of pressed plate.
  • a motor-compressor unit is indicated by 1 and comprises a casing 2 defined by two half-casings 3 and 4 fixed together in any known manner.
  • a cavity 5 defined by said casing 2 contains an electric motor 8 comprising a usual stator 9 and a rotor 10.
  • the motor rests in any known manner on spring dampers 11 which themselves rest on a base part 12 of the half-casing 4.
  • the motor 8 rotates an output shaft (or drive shaft) 13 on which the big end 15 of a connecting rod 16 secured to a piston 17 is mounted. This latter moves within the bore 18 of a cylinder 20 to compress for example a usual refrigerant fluid of a refrigerator in which the motor-compressor unit is used.
  • valve plate 22 At one end of said bore there is a valve plate 22 provided with ports 23 on which usual valves 24 act.
  • the motor 8 is associated with a compressor frame 30 constructed of pressed plate and comprising a flat part 31 from which a plurality of arms 32 extend. Said arms are arranged perpendicular to the part 31 and are bent at their free ends 34 where they are provided with through holes 35 for receiving usual frames (screws, not shown) for its fixing to the motor 8.
  • Said wall comprises an aperture 38.
  • the wall is intended to be fixed by usual screws, not shown, to the compressor head 25.
  • a hollow cylindrical portion 40 of a cylindrical body provided with a flange 41 at its free end is inserted into the aperture 38.
  • This cylindrical body formed advantageously by pressing and deep-drawing a metal plate (or alternatively of sintered material), defines the cylinder 20 within which the piston 17 moves.
  • the flange 41 is positioned between the valve plate 22 and the wall 37, and is secured to this latter by the screws which fix the head 25 to the wall.
  • the ports 23 of said plate 22 open into said cylindrical portion 40.
  • the frame 30 In its flat part 31, the frame 30 comprises a sunken region 43 facing the motor 8.
  • an aperture 44 in which there is placed a hollow cylindrical body 45, formed advantageously by pressing and deep-drawing a metal plate or alternatively of sintered material, possibly covered with an anti-friction material of known type.
  • the body 45 surrounds the shaft 8.
  • cylindrical body 45 comprises a cylindrical part 46 provided with an end flange 47 disposed in the sunken region 43 in any known manner.
  • both the cylindrical body 45 and that defining the cylinder 20 can be formed integrally with the frame or bracket 30 by respectively deep-drawing those portions of the wall 37 and sunken region 43 in positions corresponding with the apertures 38 and 44 (as shown in Figure 4, in which parts corresponding to those of the preceding figures are indicated by the same reference numerals).
  • Figure 4 in which parts corresponding to those of the preceding figures are indicated by the same reference numerals.
  • a usual bearing for example of anti-friction material, can be placed in the aperture 44 to separate the drive shaft 13 from the frame or bracket 30.
  • the construction of the frame 30 starts from a flat stamped plate, shown in Figure 3.
  • the aperture 44 (shown dashed in Figure 1) is then formed in this plate, of surface area much larger than the flat part 31, by blanking.
  • the aperture edges are then deep-drawn if the cylindrical body 45 is to be formed integrally with the compressor frame 30.
  • the compressor frame 30 is then shaped to form those arms 32 close to what is to become the wall 37.
  • that portion of the frame 30 bounded by the dashed line 30A in Figure 3 is deep-drawn and the frame thus drawn is blanked along the dashed lines 30B.
  • the first operation defines the wall 37, the perimetral raised edges 50, 51 and 52 (see Figure 2), with the edge 51 extending along the entire perimeter of the frame 30, and the arms 32, substantially with the same elevation and providing stiffening for the frame (the edges 50, 52 connect the edge 51 to the wall 37).
  • the second operation releases the arms 32 positioned at the wall 37.
  • the compressor frame 30 is fixed to the motor (in known manner) and the cylinder and cylindrical body 45 are then inserted into it.
  • the valve plate 22 and head 25 are then fixed to the wall 37, so as to also fix to this latter the flange 41 of the cylinder 20, the body 45 then being secured to the flat part 31.
  • the frame 30 is easily formed by operations of limited cost, as stated.
  • This frame can thus itself incorporate the cylinder within which the piston moves (with considerable advantages in terms of assembly of the compressor components), or alternatively the cylinder be fitted after constructing the frame.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
EP19920103642 1991-03-26 1992-03-03 Hermetische Motor-Verdichter-Einheit mit verbessertem Motortragegestell oder -Stützträger Expired - Lifetime EP0507091B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI910251U 1991-03-26
IT000251 IT221765Z2 (it) 1991-03-26 1991-03-26 Motocompressore ermetico con corpo o staffa di supporto del motore perfezionato

Publications (2)

Publication Number Publication Date
EP0507091A1 true EP0507091A1 (de) 1992-10-07
EP0507091B1 EP0507091B1 (de) 1996-01-17

Family

ID=11358371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920103642 Expired - Lifetime EP0507091B1 (de) 1991-03-26 1992-03-03 Hermetische Motor-Verdichter-Einheit mit verbessertem Motortragegestell oder -Stützträger

Country Status (4)

Country Link
EP (1) EP0507091B1 (de)
BR (1) BR9201002A (de)
DE (1) DE69207625T2 (de)
IT (1) IT221765Z2 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998049447A1 (en) 1997-04-28 1998-11-05 Embraco Europe S.R.L. A hermetic motor-driven compressor for refrigerators
US6276906B1 (en) * 1997-05-21 2001-08-21 Matsushita Refrigeration Company Spherical casing and elastic support for a hermetic motor compressor
WO2009030536A1 (de) 2007-08-28 2009-03-12 Acc Austria Gmbh Kältemittelkompressor
US7722337B2 (en) 2004-10-18 2010-05-25 Danfoss Compressors Gmbh Piston compressor cylinder arrangement, particularly for a hermetically enclosed refrigerant compressor
WO2013029132A1 (en) * 2011-08-30 2013-03-07 Whirlpool S.A. Compressor block
CN103038583A (zh) * 2010-06-08 2013-04-10 阿塞里克股份有限公司 密封压缩机
CN105570090A (zh) * 2016-03-03 2016-05-11 加西贝拉压缩机有限公司 一种冰箱压缩机用分体式曲轴箱
CN116398406A (zh) * 2023-03-23 2023-07-07 广州万宝集团压缩机有限公司 一种压缩机组件、压缩机和制冷设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10254045B4 (de) * 2002-11-20 2004-09-23 Danfoss Compressors Gmbh Kältemittelverdichteranordnung
CN111577576B (zh) * 2019-02-18 2021-12-31 安徽美芝制冷设备有限公司 压缩机的机架组件和压缩机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492547A (en) * 1945-05-03 1949-12-27 Donald E Willard Air compressor
GB959243A (en) * 1961-07-24 1964-05-27 Hintze Rudolf Reciprocating compressor construction
DE2030047A1 (de) * 1969-10-23 1971-03-11 Lee Refigeration Ltd , Lewis, Ronald William, Smith, Eric, Bognor Regis, Sus sex (Großbritannien) Hermetisch gekapselter Elektromotor Kompressor
EP0325694A2 (de) * 1988-01-25 1989-08-02 Tecumseh Products Company Kompressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492547A (en) * 1945-05-03 1949-12-27 Donald E Willard Air compressor
GB959243A (en) * 1961-07-24 1964-05-27 Hintze Rudolf Reciprocating compressor construction
DE2030047A1 (de) * 1969-10-23 1971-03-11 Lee Refigeration Ltd , Lewis, Ronald William, Smith, Eric, Bognor Regis, Sus sex (Großbritannien) Hermetisch gekapselter Elektromotor Kompressor
EP0325694A2 (de) * 1988-01-25 1989-08-02 Tecumseh Products Company Kompressor

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998049447A1 (en) 1997-04-28 1998-11-05 Embraco Europe S.R.L. A hermetic motor-driven compressor for refrigerators
US6276906B1 (en) * 1997-05-21 2001-08-21 Matsushita Refrigeration Company Spherical casing and elastic support for a hermetic motor compressor
US7722337B2 (en) 2004-10-18 2010-05-25 Danfoss Compressors Gmbh Piston compressor cylinder arrangement, particularly for a hermetically enclosed refrigerant compressor
WO2009030536A1 (de) 2007-08-28 2009-03-12 Acc Austria Gmbh Kältemittelkompressor
CN101828036B (zh) * 2007-08-28 2013-07-03 Acc奥地利有限公司 致冷剂压缩机
CN103038583A (zh) * 2010-06-08 2013-04-10 阿塞里克股份有限公司 密封压缩机
CN103038583B (zh) * 2010-06-08 2015-05-13 阿塞里克股份有限公司 密封压缩机
WO2013029132A1 (en) * 2011-08-30 2013-03-07 Whirlpool S.A. Compressor block
CN103857911A (zh) * 2011-08-30 2014-06-11 惠而浦股份有限公司 压缩机机体
CN105570090A (zh) * 2016-03-03 2016-05-11 加西贝拉压缩机有限公司 一种冰箱压缩机用分体式曲轴箱
CN116398406A (zh) * 2023-03-23 2023-07-07 广州万宝集团压缩机有限公司 一种压缩机组件、压缩机和制冷设备

Also Published As

Publication number Publication date
BR9201002A (pt) 1992-11-24
DE69207625D1 (de) 1996-02-29
DE69207625T2 (de) 1996-05-30
EP0507091B1 (de) 1996-01-17
ITMI910251V0 (it) 1991-03-26
IT221765Z2 (it) 1994-10-20
ITMI910251U1 (it) 1992-09-26

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