US3865517A - Refrigeration condenser unit - Google Patents

Refrigeration condenser unit Download PDF

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Publication number
US3865517A
US3865517A US364566A US36456673A US3865517A US 3865517 A US3865517 A US 3865517A US 364566 A US364566 A US 364566A US 36456673 A US36456673 A US 36456673A US 3865517 A US3865517 A US 3865517A
Authority
US
United States
Prior art keywords
housing
fan
opening
motor
condenser
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 - Lifetime
Application number
US364566A
Other languages
English (en)
Inventor
Walter H Simmons
Saleh H Almilli
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.)
Carrier Corp
Original Assignee
Carrier Corp
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 Carrier Corp filed Critical Carrier Corp
Priority to US364566A priority Critical patent/US3865517A/en
Priority to CA197,312A priority patent/CA1014362A/en
Priority to AU67770/74A priority patent/AU482887B2/en
Priority to IN822/CAL/1974A priority patent/IN142915B/en
Priority to IT21631/74A priority patent/IT1009932B/it
Priority to ES426119A priority patent/ES426119A1/es
Priority to MX74100247U priority patent/MX3521E/es
Priority to TR17926A priority patent/TR17926A/xx
Priority to BR4256/74A priority patent/BR7404256D0/pt
Priority to JP49059588A priority patent/JPS5020345A/ja
Priority to FR7418224A priority patent/FR2231925B1/fr
Application granted granted Critical
Publication of US3865517A publication Critical patent/US3865517A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0028—Details for cooling refrigerating machinery characterised by the fans
    • F25D2323/00281—Two or more fans

Definitions

  • split systems comprise a refrigerant evaporator and associated parts disposed within the residence, and a compressor and a condenser which are contained in an outdoor housing.
  • An electric fan assembly associated with the condenser generally draws air over the condenser to remove heat from refrigerant flowing through the condenser cir cuitry, and discharges the warmed air through a dis charge opening in the housing.
  • the proper mounting and operation of the fan assembly are very important, because the operation of the air conditioning system depends largely on the dissipation of heat from the condenser by air flowing over the condenser.
  • the outdoor location of the fan assembly renders it susceptible to various sorts of damage.
  • the operation of the fan motor can be seriously impaired if moisture or dirt enter the motor bearings.
  • the likelihood of such damage is greater in those units wherein the fan shaft extends vertically upwardly, because water can run down the shaft into the bearings.
  • Another type of injury to which these outdoor units are susceptible is movement of the fan assembly relative to the air discharge opening in the housing.
  • the fan assembly has heretofore been attached either directly to the housing or to legs fastened to the housing walls.
  • the supports for the fan assembly can be distorted during the shipment of the unit to the installation site, or after the unit has been installed at its outdoor location. Movement of the fan assembly relative to the discharge opening in the housing changes the path of flow of air through the opening, generally resulting in a reduction in the air flow rate.
  • the incorporation of the foregoing types of motor mounts requires an expense whose removal or reduction would be advantageous.
  • An object of the present invention is to improve the means by which a condenser fan is mounted in a refrigeration condenser unit.
  • Another object of the invention is to mount a condenser fan in a refrigeration condenser unit so that the danger of moving the fan relative to the discharge opening in the housing of the unit is eliminated or significantly reduced.
  • a further object of the invention is to mount a condenser fan in an outdoor refrigeration condenser unit in a manner which protects the fan shaft against damage from moisture and dirt.
  • Yet another object of the invention is to mount a fan assembly in an outdoor refrigeration condenser unit in a manner which is economical and which improves the functioning of the fan.
  • an outdoor condenser unit of an air conditioning system which comprises a housing for containing the condenser and the compressor of the system, and a fan assembly which is attached to a grille covering an air discharge opening in the top of the housing.
  • the fan shaft extends downwardly into the housing and the fan is at tached thereto.
  • the fan assembly is located positively relative to this opening, and the shaft bearings are protected against moisture and dirt.
  • FIG. I is a top plan view of an outdoor condenser unit incorporating the present invention.
  • FIG. 2 is a partial cross section of the unit taken in the direction indicated by the arrows 2-2 in FIG. 1.
  • the embodiment of the invention described below comprises an outdoor refrigeration condenser unit which includes a housing for the condenser coil and the compressor of a refrigeration machine serving as part of an air conditioning system, an opening in the top of the housing for discharging from the housing air warmed by the condenser, a grille covering the air discharge opening, and a fan assembly attached to the grille.
  • the fan assembly includes a motor fastened to the grille and having a rotatable shaft extending downwardly into the housing, and a fan attached to the shaft.
  • This outdoor portion comprises a housing 1 which contains the compressor (not shown) and the condenser coil 3 of the system. Refrigerant circulating through the system absorbs heat as it passes through the evaporator located in the space being conditioned, and discharges that heat as it condenses in condenser 3.
  • a fan assembly 5 is provided for drawing air over condenser coil 3 to absorb heat given off by the refrigerant and to discharge the warmed air through a discharge opening 7 in the top of housing 1.
  • a grille 9 covers opening 7 and is attached to housing 1 by means of bolts 11.
  • Grille 9 comprises a plurality of concentric rings I3 which are attached to six equidistant radial arms 15. Bolts 11 pass through holes in the flattened outer ends of arms 15.
  • the grille is preferably manufactured from corrosion resistant heavy wire stock because of its outdoor location. Grille 9 functions primarily to prevent the passage of large particles into housing I where they could damage the unit or impair its operation, and to protect persons from touching the fan described below.
  • Fan assembly 5 is attached directly to grille 9. To this end, arms 15 of the grille are bent inwardly at their inner end portions to form motor supports 17. Supports l7 cooperate to define a generally cylindrical motor mount. Fan assembly 5 includes a motor 19, a rotatable shaft 21, and a fan 23. The motor has a cylindrical casing from which extend a set of tabs 25, each tab 25 having an opening for receiving a support 17. Motor 19 is retained on supports 17 by virtue of the tight fit of the supports in tabs 25, or by means of nuts which are screwed onto the appropriately threaded lower ends of supports 17.
  • Motor 19 is thus mounted so that shaft 21 extends downwardly into the housing.
  • the bearings for shaft 21 are located at the lower end of motor 19, and thus are protected against the movement of water, dust and dirt passing through grille 9.
  • a cover or nameplate medallion 29 can advantageously be provided at the center of grille 9 for aesthetic reasons and to further protect the motor against the elements.
  • a refrigeration condenser unit comprising:
  • a housing having a horizontal, top wall
  • an independent grille mounted on the housing over the opening, said grille including a plurality of motor support members extending through the opening and a protective motor cover extending partially across the opening;
  • a fan disposed in the housing for moving air through the opening
  • a motor for rotating the fan said motor being attached to the motor support members under the protective cover and having a rotatable shaft, the

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
US364566A 1973-05-29 1973-05-29 Refrigeration condenser unit Expired - Lifetime US3865517A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US364566A US3865517A (en) 1973-05-29 1973-05-29 Refrigeration condenser unit
CA197,312A CA1014362A (en) 1973-05-29 1974-04-10 Refrigeration condenser unit
AU67770/74A AU482887B2 (en) 1973-05-29 1974-04-10 Refrigeration condenser unit
IN822/CAL/1974A IN142915B (es) 1973-05-29 1974-04-11
IT21631/74A IT1009932B (it) 1973-05-29 1974-04-18 Unita condensatore di refrigera zione
ES426119A ES426119A1 (es) 1973-05-29 1974-05-03 Perfeccionamientos introducidos en una unidad condensadora de refrigeracion.
MX74100247U MX3521E (es) 1973-05-29 1974-05-14 Mejoras en unidad de condensacion de refrigeracion
TR17926A TR17926A (tr) 1973-05-29 1974-05-14 Sogutma kondansatoer uenitesi
BR4256/74A BR7404256D0 (pt) 1973-05-29 1974-05-24 Unidade condensadora de refrigeracao aperfeicoada
JP49059588A JPS5020345A (es) 1973-05-29 1974-05-27
FR7418224A FR2231925B1 (es) 1973-05-29 1974-05-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US364566A US3865517A (en) 1973-05-29 1973-05-29 Refrigeration condenser unit

Publications (1)

Publication Number Publication Date
US3865517A true US3865517A (en) 1975-02-11

Family

ID=23435072

Family Applications (1)

Application Number Title Priority Date Filing Date
US364566A Expired - Lifetime US3865517A (en) 1973-05-29 1973-05-29 Refrigeration condenser unit

Country Status (10)

Country Link
US (1) US3865517A (es)
JP (1) JPS5020345A (es)
BR (1) BR7404256D0 (es)
CA (1) CA1014362A (es)
ES (1) ES426119A1 (es)
FR (1) FR2231925B1 (es)
IN (1) IN142915B (es)
IT (1) IT1009932B (es)
MX (1) MX3521E (es)
TR (1) TR17926A (es)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036292A (en) * 1975-10-21 1977-07-19 Westinghouse Electric Corporation Refrigeration condenser
US4043708A (en) * 1976-02-10 1977-08-23 Rheem Manufacturing Company Resilient mounting for fan motor
US4103192A (en) * 1976-06-14 1978-07-25 General Electric Company Heat dissipating motor mounting arrangement
US4171937A (en) * 1976-02-10 1979-10-23 Rheem Manufacturing Company Grill panel and motor mount assembly
US4191245A (en) * 1976-06-14 1980-03-04 General Electric Company Heat dissipating motor mounting arrangement
US4202409A (en) * 1978-03-23 1980-05-13 Carrier Corporation One piece top cover with stamped open louvers and motor mount
US4228663A (en) * 1979-07-13 1980-10-21 Borg-Warner Corporation Apparatus for reducing ice build-up on a discharge grill of a heat pump outdoor unit
US4858683A (en) * 1988-04-04 1989-08-22 Heil-Quaker Corporation Stamped discharge grille including two louvred sections
US5117656A (en) * 1990-04-23 1992-06-02 General Electric Company Outdoor unit for a central system for conditioning air, assembly for use with a housing of such unit, and method of assembling a blower motor to a cover for such unit
WO2003085262A1 (en) * 2002-03-30 2003-10-16 University Of Central Florida High efficiency air conditioner condenser fan
US6640578B2 (en) 2001-10-31 2003-11-04 General Electric Company Refrigerator condenser and fan assembly
WO2003098131A1 (en) * 2002-05-16 2003-11-27 Scotsman Ice Systems Quiet ice making apparatus
US20050081545A1 (en) * 2000-09-15 2005-04-21 Scotsman Ice Systems And Mile High Equipment Company Integrated ice and beverage dispenser
US20060016206A1 (en) * 2000-09-15 2006-01-26 Gist David B Integrated ice and beverage dispenser
WO2006084224A2 (en) * 2005-02-04 2006-08-10 O'TOOLE John Blower system for generating controlled columnar air flow
US7121328B1 (en) * 2000-01-18 2006-10-17 General Electric Company Condenser
US20140154095A1 (en) * 2012-11-30 2014-06-05 Plasticos y Alambres, S.A. DE C.V. Fan guard for air conditioning machine
CN109790985A (zh) * 2016-10-05 2019-05-21 三菱电机株式会社 空调机的室外机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5256361U (es) * 1976-10-21 1977-04-23

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1853333A (en) * 1929-03-05 1932-04-12 Burd High Compression Ring Com Heater for motor vehicles
US2478137A (en) * 1946-11-02 1949-08-02 Gen Motors Corp Refrigerant liquefying unit
US2630691A (en) * 1951-11-20 1953-03-10 Int Harvester Co Dehumidifying air-conditioning apparatus
US2633293A (en) * 1948-12-02 1953-03-31 Charles E Jones And Associates Electric fan
US2736176A (en) * 1956-02-28 Air conditioner chassis
US2920464A (en) * 1957-02-28 1960-01-12 Internat Heater Company Air cooled condensing unit
US3115757A (en) * 1962-04-04 1963-12-31 C A Olsen Mfg Co Air cooled condenser
US3545224A (en) * 1968-12-18 1970-12-08 Trane Co Heat pump apparatus
US3612173A (en) * 1969-01-10 1971-10-12 Ilg Ind Inc Unit heater device
US3714795A (en) * 1970-03-31 1973-02-06 Tappan Co Outdoor refrigerant apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE631511C (de) * 1936-06-22 Luise Russ Geb Delmhorst Einrichtung zur wahlweisen Kuehlung oder Heizung eines Raumes mit einer Luftschraube
US3498080A (en) * 1968-04-08 1970-03-03 Carrier Corp Apertured slidable member for air conditioners

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2736176A (en) * 1956-02-28 Air conditioner chassis
US1853333A (en) * 1929-03-05 1932-04-12 Burd High Compression Ring Com Heater for motor vehicles
US2478137A (en) * 1946-11-02 1949-08-02 Gen Motors Corp Refrigerant liquefying unit
US2633293A (en) * 1948-12-02 1953-03-31 Charles E Jones And Associates Electric fan
US2630691A (en) * 1951-11-20 1953-03-10 Int Harvester Co Dehumidifying air-conditioning apparatus
US2920464A (en) * 1957-02-28 1960-01-12 Internat Heater Company Air cooled condensing unit
US3115757A (en) * 1962-04-04 1963-12-31 C A Olsen Mfg Co Air cooled condenser
US3545224A (en) * 1968-12-18 1970-12-08 Trane Co Heat pump apparatus
US3612173A (en) * 1969-01-10 1971-10-12 Ilg Ind Inc Unit heater device
US3714795A (en) * 1970-03-31 1973-02-06 Tappan Co Outdoor refrigerant apparatus

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036292A (en) * 1975-10-21 1977-07-19 Westinghouse Electric Corporation Refrigeration condenser
US4043708A (en) * 1976-02-10 1977-08-23 Rheem Manufacturing Company Resilient mounting for fan motor
US4171937A (en) * 1976-02-10 1979-10-23 Rheem Manufacturing Company Grill panel and motor mount assembly
US4103192A (en) * 1976-06-14 1978-07-25 General Electric Company Heat dissipating motor mounting arrangement
US4191245A (en) * 1976-06-14 1980-03-04 General Electric Company Heat dissipating motor mounting arrangement
US4202409A (en) * 1978-03-23 1980-05-13 Carrier Corporation One piece top cover with stamped open louvers and motor mount
US4228663A (en) * 1979-07-13 1980-10-21 Borg-Warner Corporation Apparatus for reducing ice build-up on a discharge grill of a heat pump outdoor unit
US4858683A (en) * 1988-04-04 1989-08-22 Heil-Quaker Corporation Stamped discharge grille including two louvred sections
US5117656A (en) * 1990-04-23 1992-06-02 General Electric Company Outdoor unit for a central system for conditioning air, assembly for use with a housing of such unit, and method of assembling a blower motor to a cover for such unit
US7121328B1 (en) * 2000-01-18 2006-10-17 General Electric Company Condenser
US6691528B2 (en) * 2000-09-15 2004-02-17 Scotsman Ice Systems Quiet ice making apparatus
US7275387B2 (en) 2000-09-15 2007-10-02 Scotsman Ice Systems Integrated ice and beverage dispenser
US20050081545A1 (en) * 2000-09-15 2005-04-21 Scotsman Ice Systems And Mile High Equipment Company Integrated ice and beverage dispenser
US20060016206A1 (en) * 2000-09-15 2006-01-26 Gist David B Integrated ice and beverage dispenser
US7017353B2 (en) 2000-09-15 2006-03-28 Scotsman Ice Systems Integrated ice and beverage dispenser
US6640578B2 (en) 2001-10-31 2003-11-04 General Electric Company Refrigerator condenser and fan assembly
WO2003085262A1 (en) * 2002-03-30 2003-10-16 University Of Central Florida High efficiency air conditioner condenser fan
WO2003098131A1 (en) * 2002-05-16 2003-11-27 Scotsman Ice Systems Quiet ice making apparatus
WO2006084224A2 (en) * 2005-02-04 2006-08-10 O'TOOLE John Blower system for generating controlled columnar air flow
WO2006084224A3 (en) * 2005-02-04 2009-04-30 John O'TOOLE Blower system for generating controlled columnar air flow
US20140154095A1 (en) * 2012-11-30 2014-06-05 Plasticos y Alambres, S.A. DE C.V. Fan guard for air conditioning machine
US9347465B2 (en) * 2012-11-30 2016-05-24 Plasticos Y Alambres S.A. De C.V. Fan guard for air conditioning machine
CN109790985A (zh) * 2016-10-05 2019-05-21 三菱电机株式会社 空调机的室外机
US20190323712A1 (en) * 2016-10-05 2019-10-24 Mitsubishi Electric Corporation Outdoor unit for air-conditioning apparatus
US10948201B2 (en) * 2016-10-05 2021-03-16 Mitsubishi Electric Corporation Outdoor unit for air-conditioning apparatus

Also Published As

Publication number Publication date
IN142915B (es) 1977-09-10
AU6777074A (en) 1975-10-16
TR17926A (tr) 1976-11-01
JPS5020345A (es) 1975-03-04
CA1014362A (en) 1977-07-26
BR7404256D0 (pt) 1975-01-28
ES426119A1 (es) 1976-07-01
FR2231925B1 (es) 1977-06-24
IT1009932B (it) 1976-12-20
FR2231925A1 (es) 1974-12-27
MX3521E (es) 1981-01-20

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