EP0313024B1 - Hermetically enclosed compressor with mechanical and electrical connection means - Google Patents

Hermetically enclosed compressor with mechanical and electrical connection means Download PDF

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Publication number
EP0313024B1
EP0313024B1 EP19880117410 EP88117410A EP0313024B1 EP 0313024 B1 EP0313024 B1 EP 0313024B1 EP 19880117410 EP19880117410 EP 19880117410 EP 88117410 A EP88117410 A EP 88117410A EP 0313024 B1 EP0313024 B1 EP 0313024B1
Authority
EP
European Patent Office
Prior art keywords
compressor
refrigerator
terminal strip
mounting base
strip
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.)
Expired
Application number
EP19880117410
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0313024A1 (en
Inventor
Dorino Moret
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.)
ACC Compressors SpA
Original Assignee
Zanussi Elettromeccanica SpA
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 Zanussi Elettromeccanica SpA filed Critical Zanussi Elettromeccanica SpA
Publication of EP0313024A1 publication Critical patent/EP0313024A1/en
Application granted granted Critical
Publication of EP0313024B1 publication Critical patent/EP0313024B1/en
Expired 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00—Compressor arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/002—Structural combination of a time delay electrothermal relay with an electrothermal protective relay, e.g. a start relay
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/077—Compressor control units, e.g. terminal boxes, mounted on the compressor casing wall containing for example starter, protection switches or connector contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals

Definitions

  • the present invention relates to a hermetically enclosed compressor according to DE-B-26 04 764.
  • the innumerable possibilities of designing an electric circuit for a domestic refrigerator manufactured on an industrial scale may be basically reduced to just two alternative arrangements: the first of these arrangements is directed to the provision at any suitable location within the refrigerator of a suitable terminal strip or box so as to be accessible from the exterior, usually from the rear of the refrigerator.
  • terminal box or strip Combined in this terminal box or strip are the terminals of all the electric component circuits of the refrigerator, the terminal box or strip being internally provided with means for interconnecting the various component circuits so as to result in a unitary circuit.
  • the terminal box or strip is finally connected to an external power supply cable to thereby complete the wiring of the refrigerator.
  • This solution is represented by DE-A-31 42 773 with respect to the connections between relays, the starter and the thermal protection device.
  • the second arrangement proceeds from the recognition that the compressor is usually provided with certain electric components associated and connected thereto in a permanent manner and required for ensuring proper operation of the compressor, typically a starter and a thermal protection device.
  • the present invention is therefore directed to the obtention of the following advantages:
  • a hermetically enclosed compressor similarly conceived for connection via a separate terminal strip or an integrated terminal strip, to permit the alternative employ of two integrated structures each having the same mechanical and electrical mounting base to be attached to the compressor, and an integral module including the starter, the thermal protection device and a protection cover, but having different systems for the electric connection to the remaining circuit components of the refrigerator.
  • the cable connection members comprise at least one integrated structure including a mounting base and a terminal strip, or alternatively an integrated structure including a mounting base and a cable clamping insert, said integrated structures being adapted to be mechanically mounted in an interlocking fit on a metallic base formed by punching and bending a sheet metal blank and permanently secured to the compressor adjacent the hermetically sealed connection terminal thereof.
  • a domestic refrigerator presents, when viewed from the rear, a lower cavity 1 housing a compressor 2 with its external components 3 and the delivery and return pipes 4 and 5, respectively, of the refrigerant circuit. Also diagrammatically shown are a condenser 6 and a capillary 7.
  • the refrigerator further includes a terminal strip or box 8, an external power supply cable 9, a connection 10 leading from terminal strip 8 to compressor 2, and a number of connections 11, 12 leading from terminal strip 8 to other electrical components of the refrigerator.
  • a metallic mounting base 13 suitably welded to the outer casing 14 of the compressor adjacent the power supply terminals (not shown) thereof so that the latter extend through an opening 15 formed in mounting base 13.
  • Fig. 4 Also shown in Fig. 4 are the horizontally positioned starter 20 and the thermal protection device 21 housed respectively in suitable cavities of the dismountable support 26.
  • Support 26 is provided with a plurality of preferably internal contacts 31, the employ of which will be specified in the following.
  • a first element 22 acting as a connector-terminal unit is composed of external electrical terminals 23 arranged and disposed for being connected to corresponding external conductors, of internal electric connections 32 between said terminals 23, of at least one external contact 321, and of a tongue 27 and detent 28 mechanism for releasably mounting and positioning said element 22 in cooperation with a corresponding guide 29 and recess 30, respectively, provided on an angularly extending leg portion of mounting plate 13.
  • the mechanical configuration is selected so that, when element 22 is mounted on mounting plate 13, contact 321 is positively coupled to one of contacts 31.
  • a second dismountable element 24 is composed of a tongue and detent mechanism fully identical to the above described elements 27 and 28, and of one or several cable holder inserts for individually retaining the power supply and grounding conductors leading to the compressor, and to be manually connected in the conventional manner to contacts 31 and/or to contacts projecting from the rear part of one of the relays, e.g. relay 21.
  • the electric connection is automatically established either between contacts 321 and 31, or through a suitable connection between one of terminals 23 and one of the contacts projecting from the rear part of one of the relays, e.g. relay 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Motor Or Generator Frames (AREA)
EP19880117410 1987-10-20 1988-10-19 Hermetically enclosed compressor with mechanical and electrical connection means Expired EP0313024B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT3405887U IT218547Z2 (it) 1987-10-20 1987-10-20 Compressori ermetici con dispositivi meccanici ed elettrici di collegamento.
IT3405887U 1987-10-20

Publications (2)

Publication Number Publication Date
EP0313024A1 EP0313024A1 (en) 1989-04-26
EP0313024B1 true EP0313024B1 (en) 1992-12-30

Family

ID=11239101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880117410 Expired EP0313024B1 (en) 1987-10-20 1988-10-19 Hermetically enclosed compressor with mechanical and electrical connection means

Country Status (4)

Country Link
EP (1) EP0313024B1 (es)
DE (1) DE3877123T2 (es)
ES (1) ES2037789T3 (es)
IT (1) IT218547Z2 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT225654Y1 (it) * 1991-08-05 1997-01-13 Zanussi Elettromecc Compressore con supporto perfezionato di protettore termico
IT1267406B1 (it) * 1994-03-11 1997-02-05 Itw Fastex Italia Spa Morsettiera, in particolare per elettrodomestici
IT1268138B1 (it) * 1994-10-18 1997-02-20 Itw Fastex Italia Spa Gruppo integrato di alimentazione elettrica, in particolare per elettrodomestici.
IT1285278B1 (it) * 1996-02-29 1998-06-03 Embraco Europ Srl Dispositivo di alimentazione e protezione di un compressore ermetico di una macchina frigorifera, dispositivo per il collegamento di
IT245312Y1 (it) 1998-05-28 2002-03-20 Zanussi Elettromecc Motocompressore ermetico con dispositivi perfezionatidi comando e di controllo
EP1111316A1 (en) * 1999-12-20 2001-06-27 MINU S.p.A. Terminal block assembly for connecting motor-actuated compressors, particularly for refrigerators
ES2407557B1 (es) * 2010-09-02 2014-06-09 Bsh Electrodomésticos España, S.A. Aparato de refrigeracion y conjunto de cableado

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2604764C3 (de) * 1976-02-07 1978-08-03 Danfoss A/S, Nordborg (Daenemark) Elektrische Anschlußvorrichtung für eine gekapselte Kältemaschine
IT1141680B (it) * 1980-11-03 1986-10-08 Necchi Spa Morsettiera e scatola rele' in motocompressori per apparati frigoriferi
IT1159282B (it) * 1982-06-11 1987-02-25 Necchi Spa Gruppo morsetteria-scatola rele' d'avviamento e di protezione termica per motocompressori ermetici

Also Published As

Publication number Publication date
IT8734058V0 (it) 1987-10-20
IT218547Z2 (it) 1992-06-17
ES2037789T3 (es) 1993-07-01
DE3877123T2 (de) 1993-04-29
DE3877123D1 (en) 1993-02-11
EP0313024A1 (en) 1989-04-26

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