US20050257544A1 - Unitary air-conditioning system and operation control method thereof - Google Patents
Unitary air-conditioning system and operation control method thereof Download PDFInfo
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- US20050257544A1 US20050257544A1 US11/028,759 US2875905A US2005257544A1 US 20050257544 A1 US20050257544 A1 US 20050257544A1 US 2875905 A US2875905 A US 2875905A US 2005257544 A1 US2005257544 A1 US 2005257544A1
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- Prior art keywords
- temperature
- communication signal
- air
- heat exchanger
- room temperature
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- 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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K17/00—Other equipment, e.g. separate apparatus for deodorising, disinfecting or cleaning devices without flushing for toilet bowls, seats or covers; Holders for toilet brushes
- A47K17/02—Body supports, other than seats, for closets, e.g. handles, back-rests, foot-rests; Accessories for closets, e.g. reading tables
- A47K17/022—Wall mounted grab bars or handles, with or without support on the floor
- A47K17/024—Wall mounted grab bars or handles, with or without support on the floor pivotally mounted on the wall
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K17/00—Other equipment, e.g. separate apparatus for deodorising, disinfecting or cleaning devices without flushing for toilet bowls, seats or covers; Holders for toilet brushes
- A47K2017/006—Defecation help for disabled persons
-
- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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- 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
Definitions
- the present invention relates to an air-conditioning system and, more particularly, to a unitary air-conditioning system and its operation control method.
- a unitary air-conditioning system adopts a central heating and air-conditioning system which creates cold air or hot air in one place by using an air-conditioner or a heater provided in a basement of a factory, an office, a hotel or a house and transfers and supplies the created cold air or hot air to a space to be air-conditioned or heated through a duct provided in a wall of the building.
- a zone which needs air-conditioning and a zone which needs heating are discriminated, for which a zone controller is installed in the middle of the duct in order to independently supply cold air or hot air to each zone, or a plurality of air-conditioning devices or heating devices are independently installed according to the number of zones to be air-conditioned to heated.
- FIGS. 1 and 2 are schematic view and a circuit diagram showing one example of a unitary air-conditioning system in accordance with a conventional art.
- the conventional unitary air-conditioning system includes: one outdoor unit 1 fixedly installed outside a building (a two-story house of FIG. 1 ); an indoor heat exchanger 2 A fixedly installed in a basement of the building, an outbuilding or the like and connected with an outdoor heat exchanger 1 B of the outdoor unit 1 by a refrigerating pipe; a supply duct 3 and exhaust duct 4 respectively connected to an air supply opening and an air exhaust opening of an indoor unit 2 and separately embedded in the wall of each floor; and zone controllers 5 A- 5 D installed between the supply duct 3 and exhaust duct 4 and controlling air supply to and air exhaust from each floor.
- the outdoor unit 1 includes one or more compressors 1 A installed inside a case of the outdoor unit 1 and compressing a refrigerant gas; the outdoor heat exchanger 1 B connected with the compressors 1 A by the refrigerant pipe and condensing the refrigerant gas (in case of cooling) or absorbing latent heat (in case of heating); an expansion unit 1 C connected with the outdoor heat exchanger 1 B and decompressing a pressure of the refrigerant gas and expanding the refrigerant gas; and an outdoor fan (not shown) for supplying external air to the outdoor heat exchanger 1 B to enhance performance of heat exchanging of the outdoor heat exchanger 1 B.
- the indoor unit 2 includes an indoor heat exchanger 2 A connected with the other end of the expanding unit 1 C connected with one end of the outdoor heat exchanger 1 B and an air supply fan (not shown) positioned at a lower side of the indoor heat exchanger 2 A and inducing cold air or hot air to the air supply duct 3 .
- a U-shaped air channel is formed to accommodate the indoor heat exchanger 2 A and the air supply fan, and the supply duct 3 is connected with the air supply side of the air channel and the exhaust duct 4 is connected with the air exhaust side in the case of the indoor unit.
- the supply duct 3 connected with the air supply opening and the exhaust duct 4 connected with the air exhaust opening are separately embedded in the corresponding zones Z 1 and Z 2 to or from which cold air or hot air is supplied or exhausted.
- a discharge passage 3 A is formed at the supply duct 3 in order to supply cold air or hot air to the corresponding zones Z 1 and Z 2 and a suction opening 4 A is formed at the exhaust duct 4 in order to suck indoor air of the corresponding zones Z 1 and Z 2 to circulate indoor air.
- the zone controllers 5 A to 5 D are a sort of valve installed in the middle of the supply duct 3 and the exhaust duct 4 embedded in the corresponding zones Z 1 and Z 2 and discriminately supplying cold air or hot air to the corresponding zones Z 1 and Z 2 .
- the zone controllers 5 A to 5 D detect a temperature or humidity of the zones Z 1 and Z 2 , compare the detected value with a pre-set value, and connected to a controller (not shown0 so as to be automatically turned on/off or manually turned on/off.
- the unitary air-conditioning system constructed as described above operates as follows.
- the compressors 1 A of the outdoor unit 1 are driven to compress a refrigerant gas, and the compressed refrigerant gas is condensed in the outdoor heat exchanger 1 b of the outdoor unit 1 and passes through the expansion unit 1 c.
- the refrigerant gas that has passed through the expansion unit 1 c takes heat out of the air sucked into the air channel to thereby change the sucked air to cold air.
- the cold air is moved to the supply duct 3 through the air supply opening by the air supply fan (not shown).
- the zone controllers 5 A to 5 D are automatically turned on by the controller, while if the zone controllers are manually set, the zone controllers 5 A to 5 D are turned on by user's manipulation, so that the cold air is moved to each supply duct 3 and then exhausted through the discharge passage 3 A formed at the supply duct to cool each floor.
- the unitary air-conditioning system using the heat pump type refrigerating cycle performs a cooling operation
- a size value of a load of one floor Z 1 or Z 2
- only a zone controller of a floor where the size value of the load is not smaller than the pre-set value is automatically or manually opened. Accordingly, the cold air is moved only to the supply duct 3 of the floor where the size value of the load is not smaller than the pre-set value and then discharged through the discharge passage 3 A formed at the supply duct, thereby cooling only the floor where the size value of the load is not smaller than the pre-set value.
- the unitary air-conditioning system When the unitary air-conditioning system performs a heating operation, it operates in the same manner except that the circulation of the refrigerant is made in the reverse order according to the heat pump type refrigerating cycle.
- a thermostat positioned in a room controls the indoor unit and the outdoor unit based only on detected set temperature and room temperature values inputted by a user. Namely, the indoor fan and outdoor fan are rotated and the compressors are operated depending on the information calculated based only on the set temperature and the room temperature values.
- the indoor unit and the outdoor unit are controlled based only on the values detected by the thermostat, they fail to consider an influence of the temperature of the air introduced into the indoor heat exchanger and the temperature of the indoor heat exchanger, and thus, the operation of the indoor unit and the outdoor unit are not controlled in the optimum state and capability for coping with the load is relatively degraded.
- the temperature of air introduced to the indoor heat exchanger and the temperature of the indoor heat exchanger cannot be used to control the outdoor is unit.
- an object of the present invention is to provide a unitary air-conditioning system and its control method for operating and controlling an indoor unit and an outdoor unit by controlling the outdoor unit based on information on a temperature of an indoor heat exchanger and a temperature of air introduced into the indoor heat exchanger as well as information detected from a thermostat of the indoor unit even if the indoor unit and the outdoor unit are manufactured by different manufacturers.
- a unitary air-conditioning system including: a thermostat for detecting a set temperature inputted by a user and a room temperature; a temperature detecting unit for detecting a first temperature of an indoor heat exchanger and a second temperature of air introduced into the indoor heat exchanger; a first controller for receiving information on the set temperature, the room temperature, the first temperature and the second temperature, and converting information on the inputted set temperature, the room temperature and the first and second temperatures into a communication signal; a first communicating unit for receiving the converted communication signal and transmitting it; a second communicating unit for receiving the communication signal from the first communicating unit; and a second controller for controlling an operation of compressors based on the communication signal received from the second communicating unit.
- FIG. 1 is a schematic view showing a unitary air-conditioning system in accordance with a conventional art
- FIG. 2 is a circuit diagram of the unitary air-conditioning system in accordance with the conventional art
- FIG. 3 is a block diagram showing the construction of a unitary air-conditioning system in accordance with the present invention.
- FIG. 4 is a flow chart of a method for controlling the unitary air-conditioning system in accordance with the present invention.
- FIG. 5 is a block diagram showing another example of the unitary air-conditioning system in accordance with the present invention.
- FIG. 3 is a block diagram showing the construction of a unitary air-conditioning system in accordance with the present invention.
- the unitary air-conditioning system includes a thermostat 31 for detecting a set temperature inputted by a user and a room temperature; a temperature detecting unit 32 for detecting a first temperature of an indoor heat exchanger and a second temperature of air introduced into the indoor heat exchanger; a first controller for receiving information on the set temperature, the room temperature, the first temperature and the second temperature, and converting information on the inputted set temperature, the room temperature and the first and second temperatures into a communication signal; a first communicating unit 34 for receiving the converted communication signal and transmitting it; a second communicating unit 35 for receiving the communication signal from the first communicating unit; and a second controller 36 for controlling an operation of compressors based on the communication signal received from the second communicating unit.
- a method for controlling an operation of the unitary air-conditioning system in accordance with the present invention will now be described with reference to FIG. 4 .
- FIG. 4 is a flow chart of a method for controlling the unitary air-conditioning system in accordance with the present invention.
- the method for controlling the unitary air-conditioning system includes: detecting a set temperature inputted by a user, a room temperature, a first temperature of the indoor heat exchanger, and a second temperature of air introduced into the indoor heat exchanger (step S 41 ); converting the information on the detected set temperature, the room temperature, and the first and second temperatures into a communication signal (step S 42 ); transmitting the converted communication signal wirelessly (step S 43 ); receiving the transmitted communication signal (step S 44 ); and controlling an operation of compressors based on the received communication signal (step S 45 ).
- the thermostat 31 installed in a room detects a set temperature inputted by a user and a room temperature, and information on the detected set temperature and room temperature to the first controller 33 .
- the temperature detecting unit 32 detects a first temperature of the indoor heat exchanger and a second temperature of air introduced into the indoor heat exchanger, and applies the first and second temperatures to the first controller 33 (step S 41 ).
- the thermostat 31 is installed in a room, and the temperature detecting unit 32 and the first controller 33 are installed in the indoor unit.
- the indoor unit is fixedly installed in a basement or the like.
- a temperature of air introduced into the indoor heat exchanger is equal to the temperature of air around the indoor air.
- the first controller 33 is installed at a certain position of the indoor unit and converts the information on the set temperature, the room temperature and the first and second temperatures into a communication signal (step S 42 ). In addition, the first controller 33 controls an operation of the indoor fan based on the set temperature, the room temperature and the first and second temperatures.
- the first communicating unit 34 transmits the converted communication signal to the second communicating unit 35 wirelessly (step S 43 ).
- the first communicating unit 34 converts the information on the set temperature, the room temperature and the first and second temperatures into an RF signal, and transmits the converted RF signal.
- the first communicating unit 34 is attached to a unit, for example, a gas furnace or an air handling unit, inside the indoor unit.
- the first communicating unit 34 can transmit the converted communication signal to the second communicating unit 34 through a cable.
- the second communicating unit 35 receives the transmitted communication signal, inverts the converted communication signal, and applies the inverted communication signal to the second controller 36 (step S 44 ).
- the second controller 36 receives the inverted communication signal from the second communicating unit 35 and controls an operation of the compressors 38 and the outdoor fan 39 based on the received communication signal (step S 45 ).
- output capacity of the outdoor unit is determined according to the operation of the compressors 38 and the outdoor fan 39 .
- FIG. 5 Another embodiment of the unitary air-conditioning system in accordance with the present invention will be described with reference to FIG. 5 as follows.
- the unitary air-conditioning system in accordance with another embodiment of the present invention includes a temperature detecting unit 51 for detecting a set temperature inputted by a user, a room temperature, a first temperature of the indoor heat exchanger and a second temperature of air introduced into the indoor heat exchanger; a first controller for controlling an operation of the outdoor fan 55 and compressors 56 determining output capacity of the outdoor unit based on the set temperature, the room temperature and the first and second temperatures; and a second controller 53 for controlling an operation of the indoor fan 54 based on the set temperature and the room temperature.
- a temperature detecting unit 51 for detecting a set temperature inputted by a user, a room temperature, a first temperature of the indoor heat exchanger and a second temperature of air introduced into the indoor heat exchanger
- a first controller for controlling an operation of the outdoor fan 55 and compressors 56 determining output capacity of the outdoor unit based on the set temperature, the room temperature and the first and second temperatures
- a second controller 53 for controlling an operation of the indoor fan 54 based on the set
- the unitary air-conditioning system in accordance with another embodiment of the present invention operates as follows.
- the temperature detecting unit 51 detects the set temperature inputted by the user, the room temperature, the temperature of the indoor heat exchanger and the temperature of air introduced into the indoor heat exchanger, and then, applies information on the detected temperatures to the first and second controllers 52 and 53 .
- the first controller 52 determines output capacity of the outdoor unit by controlling the operation of outdoor fan and the compressor based on the applied information on the temperatures.
- the second controller 53 controls the operation of the indoor fan based on the applied information on the set temperature and the room temperature, and also can control the operation of the indoor fan 54 based on the set temperature, the room temperature and the first and second temperatures.
- the unitary air-conditioning system in accordance with the present invention has the following advantages.
- the outdoor unit can be controlled based on the temperature of the indoor heat exchanger and the temperature of air introduced into the indoor heat exchanger as well as the information detected from the thermostat.
- the operation of the indoor unit and the outdoor unit can be controlled in an optimum state.
Abstract
A unitary air-conditioning system includes a thermostat for detecting a set temperature inputted by a user and a room temperature; a temperature detecting unit for detecting a first temperature of an indoor heat exchanger and a second temperature of air introduced into the indoor heat exchanger; a first controller for receiving information on the set temperature, the room temperature, the first temperature and the second temperature, and converting information on the inputted set temperature, the room temperature and the first and second temperatures into a communication signal; a first communicating unit for receiving the converted communication signal and transmitting it; a second communicating unit for receiving the communication signal from the first communicating unit; and a second controller for controlling an operation of compressors based on the communication signal received from the second communicating unit.
Description
- 1. Field of the Invention
- The present invention relates to an air-conditioning system and, more particularly, to a unitary air-conditioning system and its operation control method.
- 2. Description of the Background Art
- In general, a unitary air-conditioning system adopts a central heating and air-conditioning system which creates cold air or hot air in one place by using an air-conditioner or a heater provided in a basement of a factory, an office, a hotel or a house and transfers and supplies the created cold air or hot air to a space to be air-conditioned or heated through a duct provided in a wall of the building.
- In the unitary air-conditioning system, a zone which needs air-conditioning and a zone which needs heating are discriminated, for which a zone controller is installed in the middle of the duct in order to independently supply cold air or hot air to each zone, or a plurality of air-conditioning devices or heating devices are independently installed according to the number of zones to be air-conditioned to heated.
-
FIGS. 1 and 2 are schematic view and a circuit diagram showing one example of a unitary air-conditioning system in accordance with a conventional art. - As shown in
FIGS. 1 and 2 , the conventional unitary air-conditioning system includes: oneoutdoor unit 1 fixedly installed outside a building (a two-story house ofFIG. 1 ); anindoor heat exchanger 2A fixedly installed in a basement of the building, an outbuilding or the like and connected with anoutdoor heat exchanger 1B of theoutdoor unit 1 by a refrigerating pipe; asupply duct 3 andexhaust duct 4 respectively connected to an air supply opening and an air exhaust opening of anindoor unit 2 and separately embedded in the wall of each floor; andzone controllers 5A-5D installed between thesupply duct 3 andexhaust duct 4 and controlling air supply to and air exhaust from each floor. - The
outdoor unit 1 includes one ormore compressors 1A installed inside a case of theoutdoor unit 1 and compressing a refrigerant gas; theoutdoor heat exchanger 1B connected with thecompressors 1A by the refrigerant pipe and condensing the refrigerant gas (in case of cooling) or absorbing latent heat (in case of heating); anexpansion unit 1C connected with theoutdoor heat exchanger 1B and decompressing a pressure of the refrigerant gas and expanding the refrigerant gas; and an outdoor fan (not shown) for supplying external air to theoutdoor heat exchanger 1B to enhance performance of heat exchanging of theoutdoor heat exchanger 1B. - The
indoor unit 2 includes anindoor heat exchanger 2A connected with the other end of the expandingunit 1C connected with one end of theoutdoor heat exchanger 1B and an air supply fan (not shown) positioned at a lower side of theindoor heat exchanger 2A and inducing cold air or hot air to theair supply duct 3. - In the case of the
indoor unit 2, a U-shaped air channel is formed to accommodate theindoor heat exchanger 2A and the air supply fan, and thesupply duct 3 is connected with the air supply side of the air channel and theexhaust duct 4 is connected with the air exhaust side in the case of the indoor unit. - As mentioned above, the
supply duct 3 connected with the air supply opening and theexhaust duct 4 connected with the air exhaust opening are separately embedded in the corresponding zones Z1 and Z2 to or from which cold air or hot air is supplied or exhausted. Adischarge passage 3A is formed at thesupply duct 3 in order to supply cold air or hot air to the corresponding zones Z1 and Z2 and a suction opening 4A is formed at theexhaust duct 4 in order to suck indoor air of the corresponding zones Z1 and Z2 to circulate indoor air. - The
zone controllers 5A to 5D are a sort of valve installed in the middle of thesupply duct 3 and theexhaust duct 4 embedded in the corresponding zones Z1 and Z2 and discriminately supplying cold air or hot air to the corresponding zones Z1 and Z2. Thezone controllers 5A to 5D detect a temperature or humidity of the zones Z1 and Z2, compare the detected value with a pre-set value, and connected to a controller (not shown0 so as to be automatically turned on/off or manually turned on/off. - The unitary air-conditioning system constructed as described above operates as follows.
- In case of a two-story house, if a size value of a load detected from each floor, the corresponding zones Z1 and Z2, is not smaller than a pre-set value, cold air or hot air is supplied to each floor through the
supply duct 3 of each floor. Meanwhile, if a size value of a load of one of the corresponding zones Z1 and Z2 is not smaller than the pre-set value, cold air or hot air is supplied to the one floor through thesupply duct 3 of one floor. - For example, when a unitary air-conditioning system using a heat pump type refrigerating cycle performs a cooling operation, the
compressors 1A of theoutdoor unit 1 are driven to compress a refrigerant gas, and the compressed refrigerant gas is condensed in the outdoor heat exchanger 1 b of theoutdoor unit 1 and passes through the expansion unit 1 c. - Thereafter, the refrigerant gas that has passed through the expansion unit 1 c takes heat out of the air sucked into the air channel to thereby change the sucked air to cold air.
- The cold air is moved to the
supply duct 3 through the air supply opening by the air supply fan (not shown). In this case, if the both size values of the loads of each floor (Z1 and Z2) are not smaller than the pre-set value and the zone controllers are automatically set, thezone controllers 5A to 5D are automatically turned on by the controller, while if the zone controllers are manually set, thezone controllers 5A to 5D are turned on by user's manipulation, so that the cold air is moved to eachsupply duct 3 and then exhausted through thedischarge passage 3A formed at the supply duct to cool each floor. - Meanwhile, when the unitary air-conditioning system using the heat pump type refrigerating cycle performs a cooling operation, if only a size value of a load of one floor (Z1 or Z2) is not smaller than the pre-set value, only a zone controller of a floor where the size value of the load is not smaller than the pre-set value is automatically or manually opened. Accordingly, the cold air is moved only to the
supply duct 3 of the floor where the size value of the load is not smaller than the pre-set value and then discharged through thedischarge passage 3A formed at the supply duct, thereby cooling only the floor where the size value of the load is not smaller than the pre-set value. - When the unitary air-conditioning system performs a heating operation, it operates in the same manner except that the circulation of the refrigerant is made in the reverse order according to the heat pump type refrigerating cycle.
- In the conventional unitary air-conditioning system, a thermostat positioned in a room controls the indoor unit and the outdoor unit based only on detected set temperature and room temperature values inputted by a user. Namely, the indoor fan and outdoor fan are rotated and the compressors are operated depending on the information calculated based only on the set temperature and the room temperature values.
- Thus, since the indoor unit and the outdoor unit are controlled based only on the values detected by the thermostat, they fail to consider an influence of the temperature of the air introduced into the indoor heat exchanger and the temperature of the indoor heat exchanger, and thus, the operation of the indoor unit and the outdoor unit are not controlled in the optimum state and capability for coping with the load is relatively degraded.
- In addition, if manufacturers of the indoor unit and the outdoor unit are different, the temperature of air introduced to the indoor heat exchanger and the temperature of the indoor heat exchanger cannot be used to control the outdoor is unit.
- Therefore, an object of the present invention is to provide a unitary air-conditioning system and its control method for operating and controlling an indoor unit and an outdoor unit by controlling the outdoor unit based on information on a temperature of an indoor heat exchanger and a temperature of air introduced into the indoor heat exchanger as well as information detected from a thermostat of the indoor unit even if the indoor unit and the outdoor unit are manufactured by different manufacturers.
- To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a unitary air-conditioning system including: a thermostat for detecting a set temperature inputted by a user and a room temperature; a temperature detecting unit for detecting a first temperature of an indoor heat exchanger and a second temperature of air introduced into the indoor heat exchanger; a first controller for receiving information on the set temperature, the room temperature, the first temperature and the second temperature, and converting information on the inputted set temperature, the room temperature and the first and second temperatures into a communication signal; a first communicating unit for receiving the converted communication signal and transmitting it; a second communicating unit for receiving the communication signal from the first communicating unit; and a second controller for controlling an operation of compressors based on the communication signal received from the second communicating unit.
- The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.
- The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.
- In the drawings:
-
FIG. 1 is a schematic view showing a unitary air-conditioning system in accordance with a conventional art; -
FIG. 2 is a circuit diagram of the unitary air-conditioning system in accordance with the conventional art; -
FIG. 3 is a block diagram showing the construction of a unitary air-conditioning system in accordance with the present invention; -
FIG. 4 is a flow chart of a method for controlling the unitary air-conditioning system in accordance with the present invention; and -
FIG. 5 is a block diagram showing another example of the unitary air-conditioning system in accordance with the present invention. - A unitary air-conditioning system and its control method for operating and controlling an indoor unit and an outdoor unit by controlling the outdoor unit based on information on a temperature of an indoor heat exchanger and a temperature of air introduced into the indoor heat exchanger as well as information detected from a thermostat of the indoor unit even if the indoor unit and the outdoor unit are manufactured by different manufacturers, in accordance with preferred embodiments of the present invention will now be described with reference to FIGS. 3 to 5.
-
FIG. 3 is a block diagram showing the construction of a unitary air-conditioning system in accordance with the present invention. - As shown in
FIG. 3 , the unitary air-conditioning system includes athermostat 31 for detecting a set temperature inputted by a user and a room temperature; atemperature detecting unit 32 for detecting a first temperature of an indoor heat exchanger and a second temperature of air introduced into the indoor heat exchanger; a first controller for receiving information on the set temperature, the room temperature, the first temperature and the second temperature, and converting information on the inputted set temperature, the room temperature and the first and second temperatures into a communication signal; a first communicatingunit 34 for receiving the converted communication signal and transmitting it; a second communicating unit 35 for receiving the communication signal from the first communicating unit; and a second controller 36 for controlling an operation of compressors based on the communication signal received from the second communicating unit. - A method for controlling an operation of the unitary air-conditioning system in accordance with the present invention will now be described with reference to
FIG. 4 . -
FIG. 4 is a flow chart of a method for controlling the unitary air-conditioning system in accordance with the present invention. - As shown in
FIG. 4 , the method for controlling the unitary air-conditioning system includes: detecting a set temperature inputted by a user, a room temperature, a first temperature of the indoor heat exchanger, and a second temperature of air introduced into the indoor heat exchanger (step S41); converting the information on the detected set temperature, the room temperature, and the first and second temperatures into a communication signal (step S42); transmitting the converted communication signal wirelessly (step S43); receiving the transmitted communication signal (step S44); and controlling an operation of compressors based on the received communication signal (step S45). - The method for controlling an operation of the unitary air-conditioning system will be described in detail as follows.
- First, the
thermostat 31 installed in a room detects a set temperature inputted by a user and a room temperature, and information on the detected set temperature and room temperature to thefirst controller 33. - The
temperature detecting unit 32 detects a first temperature of the indoor heat exchanger and a second temperature of air introduced into the indoor heat exchanger, and applies the first and second temperatures to the first controller 33 (step S41). - The
thermostat 31 is installed in a room, and thetemperature detecting unit 32 and thefirst controller 33 are installed in the indoor unit. In general, the indoor unit is fixedly installed in a basement or the like. Thus, a temperature of air introduced into the indoor heat exchanger is equal to the temperature of air around the indoor air. - Accordingly, the
first controller 33 is installed at a certain position of the indoor unit and converts the information on the set temperature, the room temperature and the first and second temperatures into a communication signal (step S42). In addition, thefirst controller 33 controls an operation of the indoor fan based on the set temperature, the room temperature and the first and second temperatures. - The first communicating
unit 34 transmits the converted communication signal to the second communicating unit 35 wirelessly (step S43). Herein, the first communicatingunit 34 converts the information on the set temperature, the room temperature and the first and second temperatures into an RF signal, and transmits the converted RF signal. - The first communicating
unit 34 is attached to a unit, for example, a gas furnace or an air handling unit, inside the indoor unit. The first communicatingunit 34 can transmit the converted communication signal to the second communicatingunit 34 through a cable. - The second communicating unit 35 receives the transmitted communication signal, inverts the converted communication signal, and applies the inverted communication signal to the second controller 36 (step S44).
- The second controller 36 receives the inverted communication signal from the second communicating unit 35 and controls an operation of the compressors 38 and the outdoor fan 39 based on the received communication signal (step S45). Herein, output capacity of the outdoor unit is determined according to the operation of the compressors 38 and the outdoor fan 39.
- Another embodiment of the unitary air-conditioning system in accordance with the present invention will be described with reference to
FIG. 5 as follows. - As shown in
FIG. 5 , the unitary air-conditioning system in accordance with another embodiment of the present invention includes atemperature detecting unit 51 for detecting a set temperature inputted by a user, a room temperature, a first temperature of the indoor heat exchanger and a second temperature of air introduced into the indoor heat exchanger; a first controller for controlling an operation of theoutdoor fan 55 andcompressors 56 determining output capacity of the outdoor unit based on the set temperature, the room temperature and the first and second temperatures; and asecond controller 53 for controlling an operation of theindoor fan 54 based on the set temperature and the room temperature. - The unitary air-conditioning system in accordance with another embodiment of the present invention operates as follows.
- The
temperature detecting unit 51 detects the set temperature inputted by the user, the room temperature, the temperature of the indoor heat exchanger and the temperature of air introduced into the indoor heat exchanger, and then, applies information on the detected temperatures to the first andsecond controllers - The
first controller 52 determines output capacity of the outdoor unit by controlling the operation of outdoor fan and the compressor based on the applied information on the temperatures. - The
second controller 53 controls the operation of the indoor fan based on the applied information on the set temperature and the room temperature, and also can control the operation of theindoor fan 54 based on the set temperature, the room temperature and the first and second temperatures. - As so far described, the unitary air-conditioning system in accordance with the present invention has the following advantages.
- That is, since the information detected from the thermostat and the information on the temperature of air introduced into the indoor heat exchanger and the temperature of the indoor heat exchanger are wirelessly transmitted to the outdoor unit, even if the indoor unit and the outdoor unit are made separately from different manufacturers, the outdoor unit can be controlled based on the temperature of the indoor heat exchanger and the temperature of air introduced into the indoor heat exchanger as well as the information detected from the thermostat. Thus, the operation of the indoor unit and the outdoor unit can be controlled in an optimum state.
- As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, unless otherwise specified, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalence of such metes and bounds are therefore intended to be embraced by the appended claims.
Claims (13)
1. A unitary air-conditioning system comprising:
a thermostat for detecting a set temperature inputted by a user and a room temperature;
a temperature detecting unit for detecting a first temperature of an indoor heat exchanger and a second temperature of air introduced into the indoor heat exchanger;
a first controller for receiving information on the set temperature, the room temperature, the first temperature and the second temperature, and converting information on the inputted set temperature, the room temperature and the first and second temperatures into a communication signal;
a first communicating unit for receiving the converted communication signal and transmitting it;
a second communicating unit for receiving the communication signal from the first communicating unit; and
a second controller for controlling an operation of compressors based on the communication signal received from the second communicating unit.
2. The system of claim 1 , wherein the first controller controls the operation of the indoor fan based on the information on the inputted set temperature and room temperature.
3. The system of claim 1 , wherein the first controller controls the operation of the indoor fan based on the information on the inputted set temperature, indoor temperature and first and second temperatures.
4. The system of claim 1 , wherein the first controller transmits the inputted communication signal to the second communicating unit through the first communicating unit wirelessly.
5. The system of claim 1 , wherein the first communicating unit converts the inputted communication signal into an RF signal and transmits it to the second communicating unit.
6. A method for controlling an operation of a unitary air-conditioning system comprising:
detecting a set temperature inputted by a user, a room temperature, a first temperature of the indoor heat exchanger, and a second temperature of air introduced into the indoor heat exchanger;
converting the information on the detected set temperature, the room temperature, and the first and second temperatures into a communication signal;
transmitting the converted communication signal wirelessly;
receiving the transmitted communication signal; and
controlling an operation of compressors based on the received communication signal.
7. The method of claim 6 , wherein, in the transmitting step, the converted communication signal is converted into an RF signal and then transmitted.
8. The method of claim 6 , further comprising:
controlling an operation of the indoor fan based on the detected set temperature, the room temperature and the first and second temperatures.
9. The method of claim 6 , further comprising:
controlling the operation of the outdoor fan based on the received communication signal.
10. A unitary air-conditioning system comprising:
a temperature detecting unit for detecting a first temperature of an indoor heat exchanger and a second temperature of air introduced into the indoor heat exchanger; and
a controller for controlling an operation of an outdoor fan and compressors based on the first and second temperatures.
11. The system of claim 10 , further comprising:
a temperature detecting unit for detecting a room temperature and a set temperature inputted by a user.
12. The system of claim 11 , wherein an operation of an indoor fan is controlled based on the set temperature and the room temperature.
13. The system of claim 11 , wherein the operation of the indoor fan is controlled based on the set temperature, the room temperature and the first and second temperatures.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR36524/2004 | 2004-05-21 | ||
KR1020040036524A KR100539766B1 (en) | 2004-05-21 | 2004-05-21 | Unitary air conditioner and his control method |
Publications (1)
Publication Number | Publication Date |
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US20050257544A1 true US20050257544A1 (en) | 2005-11-24 |
Family
ID=34938924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/028,759 Abandoned US20050257544A1 (en) | 2004-05-21 | 2005-01-05 | Unitary air-conditioning system and operation control method thereof |
Country Status (4)
Country | Link |
---|---|
US (1) | US20050257544A1 (en) |
EP (1) | EP1598605B1 (en) |
KR (1) | KR100539766B1 (en) |
CN (1) | CN100572961C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US20060283198A1 (en) * | 2005-06-15 | 2006-12-21 | Lg Electronics Inc. | Apparatus and method for controlling operation of unitary air conditioner |
US10240809B1 (en) * | 2014-03-04 | 2019-03-26 | Michael Duvivier | Wireless condenser controller |
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JP5218280B2 (en) * | 2009-05-21 | 2013-06-26 | 富士通株式会社 | Monitoring device, monitoring program, and monitoring method |
CN102200786A (en) * | 2010-03-25 | 2011-09-28 | 北新集团建材股份有限公司 | Remote liquid level control device for light mineral wool sound-absorbing board waste systems |
CN102853500A (en) * | 2011-06-29 | 2013-01-02 | 科汇工业有限公司 | Multi-region thermostatic controller and cold-warm air ventilation system |
CN102734995B (en) * | 2012-06-29 | 2014-10-08 | 美的集团股份有限公司 | Control method of air conditioner and temperature regulating box all-in-one machine |
CN104697118B (en) * | 2015-03-11 | 2018-06-05 | 广东美的制冷设备有限公司 | The adjusting method of air conditioner, the regulating device of air conditioner and air conditioner |
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US5502976A (en) * | 1993-05-28 | 1996-04-02 | Kabushiki Kaisha Toshiba | Air conditioning apparatus |
US20030101739A1 (en) * | 2000-06-07 | 2003-06-05 | Joong-Ki Moon | Air conditioner control system and control method thereof |
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JPH03217746A (en) * | 1990-01-24 | 1991-09-25 | Hitachi Ltd | Multiroom type air-conditioner |
JP2928661B2 (en) * | 1991-06-12 | 1999-08-03 | 株式会社日立製作所 | Multi-type air conditioner and outdoor unit used for it |
KR0125737B1 (en) * | 1992-12-31 | 1998-04-01 | 윤종용 | Apparatus controlling airconditioner |
JP3404150B2 (en) * | 1994-09-28 | 2003-05-06 | 東芝キヤリア株式会社 | Air conditioner and control method thereof |
KR100248760B1 (en) * | 1997-06-27 | 2000-04-01 | 윤종용 | Heating control method for air conditioner |
JPH11287502A (en) * | 1998-03-31 | 1999-10-19 | Sanyo Electric Co Ltd | Air conditioner |
KR19990085369A (en) * | 1998-05-16 | 1999-12-06 | 윤종용 | Data communication device of multi air conditioner and its control method |
JP3742859B2 (en) * | 2002-03-28 | 2006-02-08 | ダイキン工業株式会社 | Indoor unit of air conditioner and air conditioner |
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2004
- 2004-05-21 KR KR1020040036524A patent/KR100539766B1/en not_active IP Right Cessation
-
2005
- 2005-01-05 US US11/028,759 patent/US20050257544A1/en not_active Abandoned
- 2005-01-24 CN CNB200510005646XA patent/CN100572961C/en not_active Expired - Fee Related
- 2005-03-08 EP EP05101776.2A patent/EP1598605B1/en not_active Expired - Fee Related
Patent Citations (2)
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US5502976A (en) * | 1993-05-28 | 1996-04-02 | Kabushiki Kaisha Toshiba | Air conditioning apparatus |
US20030101739A1 (en) * | 2000-06-07 | 2003-06-05 | Joong-Ki Moon | Air conditioner control system and control method thereof |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US20060283198A1 (en) * | 2005-06-15 | 2006-12-21 | Lg Electronics Inc. | Apparatus and method for controlling operation of unitary air conditioner |
US10240809B1 (en) * | 2014-03-04 | 2019-03-26 | Michael Duvivier | Wireless condenser controller |
Also Published As
Publication number | Publication date |
---|---|
KR20050111282A (en) | 2005-11-24 |
EP1598605A3 (en) | 2010-07-14 |
CN100572961C (en) | 2009-12-23 |
EP1598605B1 (en) | 2014-01-15 |
EP1598605A2 (en) | 2005-11-23 |
CN1699870A (en) | 2005-11-23 |
KR100539766B1 (en) | 2006-01-12 |
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