CN1116555C - Device for controlling rotational speed of outdoor fan motor of split-type air conditioners - Google Patents

Device for controlling rotational speed of outdoor fan motor of split-type air conditioners Download PDF

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Publication number
CN1116555C
CN1116555C CN99119062A CN99119062A CN1116555C CN 1116555 C CN1116555 C CN 1116555C CN 99119062 A CN99119062 A CN 99119062A CN 99119062 A CN99119062 A CN 99119062A CN 1116555 C CN1116555 C CN 1116555C
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CN
China
Prior art keywords
fan motor
outdoor fan
outdoor
winding
thermal switch
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 - Fee Related
Application number
CN99119062A
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Chinese (zh)
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CN1281130A (en
Inventor
金孝锡
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Filing date
Publication date
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Publication of CN1281130A publication Critical patent/CN1281130A/en
Application granted granted Critical
Publication of CN1116555C publication Critical patent/CN1116555C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/76—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by means responsive to temperature, e.g. bimetal springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

A device for controlling the rotation speed of an exterior fan motor for a separated-type air-conditioning unit, which consists of a compressor motor with two coils, a main one and a secondary one; a thermal switch selectively connected/disconnected to the secondary or main coils according to the temperature of an exterior heat exchanger; an exterior fan motor with one terminal connected to the thermal switch and the other to a connection device for the exterior/interior unit so as to selectively activate an exterior fan at a high or low rotation speed, according to the voltage applied by the thermal switch.

Description

Be used to control the device of rotary speed of the outdoor fan motor of split-type air conditioner
Technical field
The present invention relates to detachable air conditioner, relate to more specifically be used to control split-type air conditioner the device of outdoor fan motor, it can divide the speed of two-stage control room external fan according to the temperature of outdoor heat converter.
Background technology
Common, the outdoor fan of air-conditioning blows to outdoor heat converter with ambient air, thereby strengthens the heat-exchange effect of outdoor heat converter.By the driven outdoor fan of drawing at the main winding and the sub-winding place of compressor electric motor.Here, the voltage of drawing at main winding and sub-winding place is different, and the actuating speed of outdoor fan motor depends on the received voltage of outdoor fan motor.Accordingly, be applied to its actuating speed of voltage scalable on the outdoor fan motor, the device of the rotary speed of the outdoor fan motor that is used to control traditional air conditioner has been shown in Fig. 1 and Fig. 2 by adjusting.
Fig. 1 is the control block diagram of device of rotary speed that is used to control the outdoor fan motor of traditional air conditioner.
With reference to figure 1, device in the rotary speed of the outdoor fan motor that is used for controlling traditional detachable air conditioner, key input part 13 links to each other with microcomputer 12, and microcomputer 12 links to each other with among the RY3 each with the 3rd relay R Y1, RY2 with first, second.First, second links to each other with indoor/outdoor part coupling arrangement 17 with power supply 11 with RY3 with the 3rd relay R Y1, RY2.17, the first relay R Y1 link to each other with compressor electric motor 21 by the indoor/outdoor coupling arrangement, and the second relay R Y2 links to each other with outdoor fan motor 50, and the 3rd relay R Y3 links to each other with indoor fan motor 18.In addition, compressor 20, outdoor heat-interchanger 30, capillary 16 and indoor heat-interchanger 14 link to each other by cooling water pipe 60.
The electric energy that power supply 11 will obtain from the outside is provided to each load (such as indoor fan motor 18, compressor electric motor 21 and outdoor fan motor 50).Key input part 13 is used for being chosen in air conditioner 1 predefined function, and by each relay R of ON/OFF Y1, RY2 and RY3 control each load to microcomputer 12 according to the signal that transmits from key input part 13.As ON/OFF the first, the second and the 3rd relay R Y1 by control microcomputer 12, when RY2 and RY3, power supply 11 is provided to compressor electric motor 21, outdoor fan motor 50 and indoor fan motor 18 with electric energy.In addition, indoor/outdoor part coupling arrangement 17 links to each other the electric wire of power supply 11 with outdoor section 2.Outdoor fan motor 50 drives by control microcomputer 12 or stops outdoor fan 40, by controlling microcomputer 12 indoor fan motors, 18 drivings or stopping indoor fan 15.
Therefore, connect the operating switch (not shown) when user's joystick key importation 13, the microcomputer 12 of traditional detachable air conditioner is connected each relay R Y1, RY2 and RY3 according to the drive signal that sends from key input part 13.
Accordingly, electric energy offers compressor electric motor 21, outdoor fan motor 50 and indoor fan motor 18 from power supply 11 by indoor/outdoor part coupling arrangement 17.When compressor electric motor 21 was driven, the cold-producing medium in compressor 20 was compressed then and circulates by outdoor heat-interchanger 30, capillary 16 and indoor heat-interchanger 14, carried out heat-exchange with outside air simultaneously.In addition, when indoor and outdoors fan electromotor 18 and 50 was driven, outdoor and indoor fan 40 and 15 blowed to outside air outdoor and indoor heat- interchanger 30 and 14 respectively, to add heat-flash-exchange effect.
In the case, the height speed selection ground that is determined according to the voltage height of being responded at compressor electric motor 21 drives outdoor fan motor 50.Described below with reference to Fig. 2.
Fig. 2 is the detailed block diagram of Fig. 1.
With reference to figure 2, the traditional device that is used to control the actuating speed of outdoor fan motor comprises relay R Y1 and RY2, and they control ON/OFF by the microcomputer 12 that is linked to each other with power supply 11 by electric wire.In addition, also provide indoor/outdoor part coupling arrangement 17, be used to connect the electric wire that carries out ON/OFF control by each relay R Y1 and RY2.Compressor electric motor 21 links to each other with indoor/outdoor part coupling arrangement 17, and wherein coupling arrangement 17 is carried out ON/OFF control by the first relay R Y1.Indoor fan motor 50 links to each other with the indoor/outdoor part coupling arrangement 17 that is carried out switch control by the second relay R Y2.In addition, start sub-winding 22 coupled in series of capacitor C1 and compressor electric motor 21, and main winding 2 and sub-winding 22 and startup capacitor C1 parallel connection.Main winding 23 links to each other with fan electromotor 50 with each end that starts capacitor C1.
Start capacitor C1 and be charged to required voltage, be used for original Driven Compressor motor 21, voltage is provided to sub-winding 22, thereby and sub-winding 22 because the electric current of being responded to therein forms magnetic field, apply low-voltage to outdoor fan motor 50 thus.
In sub-winding 22 sensed electric currents, main winding 23 same sensed electric currents are to form magnetic field.Though main winding 23 and sub-winding 22 have same operation,, be greater than the electric current of sub-winding 22 at the electric current of main winding 23 places induction because main winding 23 is different with the winding number of sub-winding 22.Accordingly, the voltage that provided of 23 pairs of outdoor fan motors 50 of main winding will be higher than the voltage that sub-winding 22 is provided.
After this, will be described with reference to the device of corresponding accompanying drawing the rotary speed of the outdoor fan motor of controlling traditional detachable air conditioner.
When detachable air conditioner 1 was connected in user's joystick key importation 13, drive signal was provided to microcomputer 12.Accordingly, microcomputer 12 provides signal corresponding to the drive signal that is applied in to connect first and second relay R Y1 and the RY2.Then, the alternating voltage (AC) from power supply 11 is provided for compressor electric motor 21 and outdoor fan motor 50.
Therefore, start capacitor C1 and be charged to the initial voltage that is applied on the sub-winding 22 of compressor electric motor 21.When applying initial voltage, induced current in sub-winding 22 is because initial voltage can form magnetic field around sub-winding.Accordingly, another magnetic field is applied on the rotor (not shown), thereby rotor is by original driving.At this moment, provide low-voltage to outdoor fan motor 50.Its result, outdoor fan motor 50 is with the driven at low speed outdoor fan, thereby relax air is blown into outdoor heat-interchanger.
In addition, after finishing original driving, in case the rotor (not shown) of compressor 21 has a certain rotating speed, because sub-winding 22 can not be formed for improving the magnetic field that is applied on the outdoor fan motor 50 quickening rotary speed, thereby the rotating speed of rotor can not increase again.Accordingly, in case the rotor of compressor electric motor 21 has a certain speed, the rotor (not shown) of compressor electric motor 21 is driven rotation by the higher magnetic field that is formed by main winding 23.Therefore, the higher voltage in the induction of main winding 23 places is applied to outdoor fan motor 50 by the contact of startup capacitor C1 and the main winding 23 of compressor electric motor 21 bottoms.
Alternating current by induction in the sub-winding 22 of compressor electric motor 21 drives outdoor fan motor 50 rotations, and carries out high speed rotating by the high pressure in main winding 23 inductions.In addition, when the control by microcomputer 12 disconnected the second relay R Y2, outdoor fan motor 50 was stopped.
Yet control the device of speed of the outdoor fan motor of detachable air conditioner in traditional being used for, do not consider the state of outdoor heat-interchanger, when original driving with the driven at low speed compressor electric motor, and in original driving back with high-speed driving rotary compressor motor.Accordingly, efficiency of air conditioner is lowered, and has wasted electric energy.In addition, owing to need waste of electric energy that an other device is used to prevent this type of obtaining higher efficient, thus cost is increased.
Summary of the invention
The objective of the invention is to overcome the above-mentioned shortcoming of prior art, one object of the present invention is to provide a kind of device of rotary speed of outdoor fan motor of the temperature branch two-stage control detachable air conditioner according to outdoor heat-interchanger.
Can realize above-mentioned purpose by device according to the rotary speed of the outdoor fan motor that is used to control detachable air conditioner of the present invention, this device comprises: the compressor electric motor with son and main winding, its neutron winding forms magnetic field by the electric current that provides from power supply, and the induction low-voltage is used for the revolving force of original driving with generation, main winding forms magnetic field by the electric current that provides from power supply, and the induction high voltage is to produce revolving force; According to the temperature of the outdoor heat-switch thermal switch of ON/OFF or main winding selectively; And outdoor fan motor, the one end links to each other with thermal switch and the other end links to each other with indoor/outdoor part coupling arrangement, thus according to the voltage that provides from thermal switch with low speed or high speed drive chamber's external fan selectively.
In addition, if the detected voltage of outdoor heat-interchanger surpasses a predetermined value, thermal switch is switched on, and high pressure is provided to outdoor fan motor from main winding, if the detected voltage of outdoor heat-interchanger is lower than a predetermined value, then provide low pressure to outdoor fan motor from sub-winding.
In addition, thermal switch is installed in outdoor heat-interchanger.
Therefore, can be according to the device of the rotary speed of the outdoor fan motor that is used for controlling detachable air conditioner of the present invention by thermal switch being installed in outdoor heat-interchanger and by thermal switch and outdoor fan motor being linked to each other with electric wire between compressor electric motor and according to the temperature branch two-stage control room external fan speed of outdoor heat-interchanger.Accordingly, efficiency of air conditioner is enhanced, and owing to eliminated the unnecessary rotation of outdoor fan motor, thereby can not waste electric energy.
Description of drawings
By detailed description below in conjunction with respective drawings, can clearer understanding and understanding be arranged to above-mentioned purpose and advantage of the present invention with other, wherein:
Fig. 1 is the controlling party block diagram of device of rotary speed that is used to control the outdoor fan motor of traditional detachable air conditioner;
Fig. 2 is the detailed block diagram of Fig. 1; And
Fig. 3 is the controlling party block diagram of device of rotary speed of outdoor fan motor that is used to control detachable air conditioner according to most preferred embodiment of the present invention.
Embodiment
Below with reference to corresponding accompanying drawing the device of rotary speed of outdoor fan motor that is used to control detachable air conditioner according to most preferred embodiment of the present invention is described in detail.
As shown in Figure 3, key input part 13, microcomputer 12, power supply 11, the first and second relay R Y1 and RY2, indoor/outdoor part coupling arrangement 17, outdoor fan motor 50 and main winding and sub-winding 23 with 22 all with above-mentioned of the prior art identical.Accordingly, represent similar elements with identical label, thereby omit the description to it, attentiveness concentrates on the main aspect of the present invention.
Main aspect of the present invention is that thermal switch 70 is arranged between outdoor fan motor 50 and the compressor electric motor 21 by electric wire.That is,, selectively be provided to outdoor fan motor 50, thereby outdoor fan 40 is by with low speed or selectively driving at a high speed from the son and the low pressure and the high pressure of main winding 22 and 23 according to the temperature of outdoor heat-interchanger 30.
As mentioned above, owing to be lower than voltage from main winding 23 from the voltage of sub-winding 22 inductions, when thermal switch 70 is switched to the B-contact that links to each other with sub-winding 22, be provided to outdoor fan motor 50 from the low pressure of sub-winding 22, thus the blow air that outdoor fan motor 50 relaxes.
Simultaneously, when thermal switch 70 is pulled to the A-contact that links to each other with main winding 23, because the high pressure of being responded to from main winding 23 is provided to outdoor fan motor 50, the blow air that outdoor fan 40 can be strong.
Below with reference to corresponding accompanying drawing the operation according to the device of the rotary speed of the outdoor fan of detachable air conditioner of the present invention is described in detail.
When the cooling of air conditioners/warming temperature was selected in user's joystick key importation 13, signal was imported into microcomputer 12, and microcomputer 12 is according to the signal controlling of being imported each load RY1 and RY2.That is, by connecting first and second relay R Y1 and the RY2, voltage is applied to outdoor fan motor 50 and compressor electric motor 21.
When the first relay R Y1 was switched on, the alternating current that provides from power supply 11 was applied on the sub-winding 23 of advocating peace of compressor electric motor 21 and 22.
The electric current that flows through sub-winding 22 forms magnetic field, and makes the rotor (not shown) produce induced current with rotor.Accordingly, the rotor (not shown) begins rotation, the original driving of compressor electric motor 21 beginnings.Here, because the magnetic field that forms by sub-winding 22 former thereby make rotary speed that certain limit restriction be arranged, the rotor (not shown) is rotated in the predetermined rotary speed limit.Accordingly, after original driving, by the field drives compressor electric motor 21 that forms by main winding 23.
More specifically, because main winding 23 produces the magnetic field higher than sub-winding 22, compressor electric motor 21 can higher rotary speed be rotated.In other words, the induced current that is produced by sub-winding 22 is lower than the induced current that is produced by main winding 23.Accordingly, the low-voltage that will produce from sub-winding 22 is provided to the B-contact of thermal switch 70 by electric wire, is applied to the A-joining zone of thermal switch 70 simultaneously at the high voltage of main winding 23 places induction.
In the case, the thermal switch that in outdoor heat-interchanger 30, uses by according to the temperature of outdoor heat-interchanger 30 by ON/OFF selectively, and will selectively be provided to outdoor fan motor 50 at the low pressure and the high pressure of sub-winding 22 and the induction of main winding 23 places.More specifically, when the temperature of the outdoor heat-interchanger 30 that detects from thermal switch 70 was lower than predetermined value, thermal switch 70 was pulled to the B-contact that links to each other with sub-winding 22, thereby the low-voltage of induction is applied to outdoor fan motor 50 in sub-winding 22.Accordingly, outdoor fan motor 50 is with low rotary speed drive chamber external fan 40, and outdoor fan 40 relaxes blows to air outdoor heat-interchanger 30, that is, be in rudimentary.
When the temperature that detects from thermal switch 70 surpassed predetermined level, thermal switch 70 was pulled to the A-contact that links to each other with main winding 23.Accordingly, the high pressure in the induction of main winding 23 places is provided to outdoor fan motor 50.Its result, outdoor fan motor 50 is with high rotary speed drive chamber external fan 40, and outdoor fan strong with wind to outdoor heat-interchanger 30, promptly be in senior.
As mentioned above, outdoor fan motor 50 is controlled by 70 fens two-stages of thermal switch.
Therefore, according to the device of the rotary speed of the outdoor fan motor that is used for controlling detachable air conditioner of the present invention by thermal switch being installed in heat-interchanger and being connected between outdoor fan motor and the compressor electric motor and according to the speed of the temperature branch two-stage control room external fan of outdoor heat-interchanger by the thermal switch that will have electric wire.Accordingly, can improve efficiency of air conditioner, and owing to eliminated the unnecessary rotation of outdoor fan motor, thereby can not waste electric energy.
Though invention has been described with reference to most preferred embodiment, need clear and definite to be, to those skilled in the art, to its various variation made from revise all within the scope of the appended claims.

Claims (3)

1. the device of the rotary speed of an outdoor fan motor that is used to control detachable air conditioner is characterized in that comprising:
Compressor electric motor with sub-winding and main winding, its neutron winding forms magnetic field and responds to low-voltage by the electric current that provides from power supply and produces the revolving force that is used for original driving, and main winding forms magnetic field by the electric current that provides from power supply and responds to high voltage to produce revolving force;
Thermal switch is used for according to the temperature of outdoor heat-interchanger selectively on/off or main winding; And
Outdoor fan motor, the one end links to each other with thermal switch, and an other end links to each other with indoor/outdoor part coupling arrangement, is used for according to the voltage that provides from thermal switch with low speed or drive chamber's external fan selectively at a high speed.
2. the device of the rotary speed of the outdoor fan motor that is used to control detachable air conditioner according to claim 1, it is characterized in that if the temperature that is detected of outdoor heat-interchanger surpasses predetermined numerical value, thermal switch is switched on so that high pressure is provided to outdoor fan motor from main winding, if the temperature that is detected of outdoor heat-interchanger is lower than a predetermined numerical value, thermal switch is switched on so that low pressure is provided to outdoor fan motor from sub-winding.
3. the device of the rotary speed of the outdoor fan motor that is used to control detachable air conditioner according to claim 2 is characterized in that thermal switch is installed in outdoor heat-interchanger.
CN99119062A 1999-07-15 1999-09-13 Device for controlling rotational speed of outdoor fan motor of split-type air conditioners Expired - Fee Related CN1116555C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR9928739 1999-07-15
KR1019990028739A KR100310147B1 (en) 1999-07-15 1999-07-15 Outdoor fan motor control appapratus of a separate type air - conditioner

Publications (2)

Publication Number Publication Date
CN1281130A CN1281130A (en) 2001-01-24
CN1116555C true CN1116555C (en) 2003-07-30

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Application Number Title Priority Date Filing Date
CN99119062A Expired - Fee Related CN1116555C (en) 1999-07-15 1999-09-13 Device for controlling rotational speed of outdoor fan motor of split-type air conditioners

Country Status (5)

Country Link
KR (1) KR100310147B1 (en)
CN (1) CN1116555C (en)
ES (1) ES2156831B1 (en)
IT (1) IT1308862B1 (en)
PT (1) PT102366B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113811723A (en) * 2019-05-20 2021-12-17 三菱电机株式会社 Outdoor unit, air-conditioning apparatus, and operation control method for air-conditioning apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785433A (en) * 1972-05-30 1974-01-15 Gen Electric Air conditioning system including indoor fan speed control
JPS54144029A (en) * 1978-04-28 1979-11-09 Matsushita Refrig Co Operation control device for air conditioning machine
JPS55155156A (en) * 1979-05-22 1980-12-03 Sanyo Electric Co Cooler
JPS5743153A (en) * 1980-08-28 1982-03-11 Sharp Corp Fan speed control circuit for air conditioner
JPH03213957A (en) * 1990-01-18 1991-09-19 Mitsubishi Electric Corp Air conditioner
JPH04203717A (en) * 1990-11-30 1992-07-24 Hitachi Ltd Rotating speed control method of outdoor fan for air-cooled air-conditioner
JPH09303892A (en) * 1996-05-15 1997-11-28 Sharp Corp Outdoor machine of air conditioner

Also Published As

Publication number Publication date
KR100310147B1 (en) 2001-09-29
PT102366B (en) 2003-04-30
IT1308862B1 (en) 2002-01-11
ES2156831B1 (en) 2002-02-01
ITTO990949A0 (en) 1999-11-03
PT102366A (en) 2001-01-31
ES2156831A1 (en) 2001-07-16
ITTO990949A1 (en) 2001-05-03
CN1281130A (en) 2001-01-24
KR20010010055A (en) 2001-02-05

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