EP0421699A2 - Portable air conditioning apparatus and method for controlling the same - Google Patents
Portable air conditioning apparatus and method for controlling the same Download PDFInfo
- Publication number
- EP0421699A2 EP0421699A2 EP90310716A EP90310716A EP0421699A2 EP 0421699 A2 EP0421699 A2 EP 0421699A2 EP 90310716 A EP90310716 A EP 90310716A EP 90310716 A EP90310716 A EP 90310716A EP 0421699 A2 EP0421699 A2 EP 0421699A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- rotational speed
- defined space
- condenser
- exhaustion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
-
- 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
- F24F11/80—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
-
- 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
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
-
- 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
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/04—Arrangements for portability
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
Definitions
- This invention relates, in general, to air conditioning apparatus.
- the invention relates to a portable air conditioning apparatus which includes a refrigerating circuit unit having a compressor, a condenser and an exhaustion fan device, and an air conditioning unit having an evaporator and a circulation fan device in a common casing.
- the portable air conditioning apparatus usually is disposed in a room to be air-conditioned.
- Spray device 15 includes a cylinder 15a, the diameter of which gradually increases from the lower end toward the upper end.
- a plurality of fins 15b extend from the inner peripheral wall of cylinder 15a toward rotatable shaft 31b, and each extended end of fins 15b is fixed to a hub (Not shown) which is firmly fixed to rotatable shaft 31b of motor 31.
- the lower end of cylinder 15a of spray device 15 is dipped into water in a water tank 43 disposed on the bottom surface of casing 17.
- Water tank 43 is provided with a float switch 45 to detect the level of water stored in water tank 43.
- a water supply tank 47 is disposed in casing 17, as shown in FIGURE 1.
- the lower portion 47a of water supply tank 47 is connected to water tank 43 through a pipe 49 to supply water stored in water supply tank 47 to water tank 43.
- a compressor 51 is located parallel to water supply tank 47 in casing 17.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
- This invention relates, in general, to air conditioning apparatus. In particular, the invention relates to a portable air conditioning apparatus which includes a refrigerating circuit unit having a compressor, a condenser and an exhaustion fan device, and an air conditioning unit having an evaporator and a circulation fan device in a common casing. The portable air conditioning apparatus usually is disposed in a room to be air-conditioned.
- As shown in FIGURES 1 and 2, a well known portable
air conditioning apparatus 11 typically includes anevaporation type condenser 13 and aspray device 15, which sprays water ontoevaporation type condenser 13 to coolcondenser 13. Acasing 17 ofair conditioning apparatus 11 is partitioned into anupper chamber 19 and alower chamber 21 with apartition plate 23. A conditionedair discharging opening 25 is formed in the front surface ofcasing 17. Anair intake opening 27 is formed in the rear surface ofcasing 17. Afan casing 28 is arranged inupper chamber 19 and opens to conditioned air discharge opening 25. Acirculation fan 29 is rotatably disposed infan casing 28, and is supported by one of therotatable shafts 31a of a two-shaft motor 31 arranged inlower chamber 21. Anevaporator 33 is disposed inupper chamber 19 so as to be opposite to air intake opening 27. - An
exhaustion fan 35 and the above-describedspray device 15 are coaxially supported by the otherrotatable shaft 31b of two-shaft motor 31 inlower chamber 21.Exhaustion fan 35 is a centrifugal fan device, and is disposed between two-shaft motor 31 andspray device 15. Anexhaustion fan casing 37 is disposed aroundexhaustion fan 35. Aflexible guide hose 39 is inserted into anoutlet 37a ofexhaustion fan casing 37 to guide air fromexhaustion fan 35 to the external atmosphere (outside of the room). A secondair intake opening 41 is formed in the rear surface ofcasing 17 close tooutlet 37a ofexhaustion fan casing 37 to take air from the room intolower chamber 21 ofcasing 17. -
Spray device 15 includes acylinder 15a, the diameter of which gradually increases from the lower end toward the upper end. A plurality offins 15b extend from the inner peripheral wall ofcylinder 15a towardrotatable shaft 31b, and each extended end offins 15b is fixed to a hub (Not shown) which is firmly fixed torotatable shaft 31b ofmotor 31. The lower end ofcylinder 15a ofspray device 15 is dipped into water in awater tank 43 disposed on the bottom surface ofcasing 17.Water tank 43 is provided with afloat switch 45 to detect the level of water stored inwater tank 43. Awater supply tank 47 is disposed incasing 17, as shown in FIGURE 1. Thelower portion 47a ofwater supply tank 47 is connected towater tank 43 through apipe 49 to supply water stored inwater supply tank 47 towater tank 43. Acompressor 51 is located parallel towater supply tank 47 incasing 17. - As shown in FIGURE 2,
evaporation type condenser 13 is coiled around the periphery ofcylinder 15a ofspray device 15 so as to maintain a predetermined distance between coiledcondenser 13 andcylinder 15a. Acylindrical cover 51 is disposed outsidecondenser 13 to prevent water sprayed byspray device 15 from being scattered tolower chamber 21. - The refrigerating circuit unit of the above-described
air conditioning apparatus 11 includescompressor 51,evaporation type condenser 13,spray device 15,water supply tank 47 andexhaustion fan 35. The air conditioning unit of the above-describedair conditioning apparatus 11 includesevaporator 33 andcirculation fan 29.Compressor 51,evaporation type condenser 13, a capillary tube (not shown), andevaporator 33 are connected serially to perform a refrigerating cycle operation. - When the cooling operation is executed by the above-described conventional air conditioning apparatus,
compressor 51 and two-shaft motor 31 are operated. Thus,circulation fan 29,exhaustion fan 35 andspray device 15 are driven bymotor 31. Internal air is taken intoupper chamber 19 ofcasing 17 through air intake opening 27, and is cooled byevaporator 33. The cooled air is discharged to the room. Thus, air in the room is circulated bycirculation fan 29 throughevaporator 33 during the air conditioning operation. Whenexhaustion fan 35 is driven, the internal air also is taken intolower chamber 21 ofcasing 17 through second air intake opening 41 to coolcondenser 13. After coolingcondenser 13, the air is exhausted to the outside of the room throughexhaustion fan 35 andair guide hose 39. - At this time,
spray device 15 also coolscondenser 13. Water inwater tank 43 is drawn up byspray device 15, and is sprayed from the upper end portion ofspray device 15 in the centrifugal direction. Thus, the sprayed water falls oncondenser 13 to coolcondenser 13. Condensation of refrigerant incondenser 13 is promoted by the evaporation of the water oncondenser 13, resulting in the enhancement of heat-exchange efficiency ofcondenser 13. - In the above-described conventional air conditioning apparatus,
compressor 51 is stopped when the actual room temperature detected by a temperature sensor (not shown) is below the prescribed set temperature. However, thecirculation fan 29 is continuously operated to circulate air in the room.Exhaustion fan 35 also continues to operate because of the rotation of two-shaft motor 31. Thus, the spray of water to condenser 13 byspray device 15 and the exhaustion of air to the ourside of the room byexhaustion fan 35 continue even ifcompressor 51 is stopped and the flow of refrigerant is stopped. As a result, water scattered byspray device 15 and water spontaneously evaporated fromwater tank 43 are exhausted together with the air discharged by theexhaustion fan 35. This results in an increase in the consumption of water stored inwater tank 43. It is rather troublesome to frequently replenish thewater supply tank 47 with water. - In addition, in the above-described conventional air oonditioning apparatus, since air is constantly exhausted from the room through
exhaustion fan 35 andair guide hose 39, an amount of hot air corresponding to the amount of exhausted air must enter the room from the outside. Thus, the actual room temperature tends to fluctuate and a comfortable air conditioning can not be achieved. - The present invention seeks to provide an apparatus which alleviates the problems of the known apparatus.
- Accordingly to the present invention, there is provided a portable air conditioning apparatus including a compressor which is stopped when the actual temperature Ta in a defined space reaches a set temperature Ts, the apparatus comprising:
means for conditioning air in the defined space, the conditioning means having a condenser cooled by air and water, a part of the water being subject to evaporation;
exhaustion fan means operating at a prescribed rotational speed Es for exhausting air through the condenser to the outside of the defined space, the exhausted air conveying the evaporated water to the outside of the defined space;
means for driving the exhaustion fan means; and
means for controlling the driving mans to decrease the amount of water conveyed by the exhausted air to the outside of the defined space when the actual temperature Ta reaches the set temperature Ts. - The controlling section may include an operation section for decreasing the rotational speed of the exhaustion fan device through the driving device when the actual temperature Ta reaches the set temperature Ts.
- The operation section may include an air exhaustion regulator section for regulating the rotational speed of the exhaustion fan device at a predetermined rotational speed El lower than the prescribed rotational speed Es when the actual temperature Ta reaches the set temperature Ts.
- According to a second aspect of the present invention, there is provided a portable air conditioning apparatus including a compressor which is stopped when the actual temperature Ta in a defined space reaches a set temperature Ts, the apparatus comprising:
an outer casing for defining an inner space;
an evaporator disposed in the outer casing;
circulation fan means for taking air into the inner space from the defined space through the evaporator;
a condenser disposed in the outer casing;
water tank means, arranged in the outer casing, for storing water;
spray means for supplying water from the water tank means to the condenser to cool the condenser;
exhaustion fan means rotating at a predetermined rotational speed Es for taking air from the outside of the casing and for exhausting the air to the outside of the defined space through the condenser, wherein air from outside the defined space enters into the defined space as air in the defined space is exhausted to the outside of the defined space; and
control means for decreasing the amount of air entering the defined space from outside the defined space when the compressor is stopped in comparison with the amount that enters when the compressor operates. - According to the a third aspect of the present invention, there is provided a method for controlling a portable air conditioning apparatus wherein a condenser is cooled by both water and air which are exhausted by an exhaustion fan to the outside of a defined space through the condenser, and a compressor is stopped when an actual temperature Ta in the defined space reaches a set temperature Ts, including the step of:
decreasing the rotational speed of the exhaustion fan to a prescribed rotational speed when the actual temperature Ta reaches the set temperature Ts. - For a better understanding of the present invention, and to show how it may be brought into effect, reference will now be made, by way of example, to the accompanying drawings, in which:-
- FIGURE 1 is a partial cross sectional view in perspective of a conventional air conditioning apparatus;
- FIGURE 2 is a sectional side view illustrating the air conditioning apparatus shown in FIGURE 1;
- FIGURE 3 is a sectional side view illustrating the air conditioning apparatus of one embodiment of the present invention;
- FIGURE 4 is a block diagram illustrating the refrigerating circuit and the control circuit of the air conditioning apparatus shown in FIGURE 3; and
- FIGURE 5 is a flow chart showing the operation of the air conditioning apparatus shown in FIGURE 3.
- A preferred embodiment of the present invention will be described in more detail with reference to the accompanying drawings. However, in the drawings, the same numerals are applied to like structural elements, and therefore the detailed descriptions thereof are not repeated.
- As shown in FIGURE 3, first and
second driving motors partition plate 23, instead of asingle motor 31 as shown in FIGURE 2. First drivingmotor 61 is disposed on the surface ofpartition plate 23 which is exposed toupper chamber 19. The top of therotation shaft 61a of first drivingmotor 61 is connected tocirculation fan 29. Second drivingmotor 63 is arranged on the surface ofpartition plate 23 exposed tolower chamber 19. Therotation shaft 63a of second drivingmotor 63 is connected toexhaustion fan 35 andspray device 15. - As shown in FIGURE 4,
compressor 51,evaporation type condenser 13,capillary tube 65 andevaporator 33 are serially connected to perform a refrigerating cycle operation. The output of asetting section 67 is input into acontrol section 69, which preferably includes a microcomputer and its peripheral circuits. Thus, when a user inputs a desired room temperature into settingsection 67, setting section outputs a set signal indicating the desired room temperature (set temperature) to controlsection 69. Atemperature detection section 71 detects an actual room temperature and outputs a detection signal indicating the actual room temperature to controlsection 69.Control section 69 compares the set signal fed from settingsection 67 with the detection signal fed fromtemperature detection section 71, and independently controls the rotational speed of first andsecond driving motors Control section 69 also controls the compressing operation ofcompressor 51 based on the above-described comparison result.Compressor 51 and second drivingmotor 63 are operated until the actual room temperature is below the desired room temperature. When the actual room temperature is below the desiredroom temperature compressor 51 is stopped and the rotational speed ofsecond driving motor 35 is decreased to a prescribed value lower than that of its normal operational state. - The rotational speed of first driving
motor 61 is decreased to a predetermined value lower than that of its normal operational state when the difference between the actual room temperature and the set temperature is greater than one degree centigrade (°C) after the actual room temperature reaches the set temperature. - The cooling operation of the above-described embodiment will now be described referring to FIGURE 5.
- In step a, if the power of the
air conditioning apparatus 11 is on, the YES-path is taken. Otherwise, the NO-path is taken. When the YES-path is taken in step a, the set temperature Ts set through settingsection 67 is read intocontrol section 69 in step b. In step c, the actual room temperature Ta detected bytemperature detection section 71 also is read intocontrol section 69. In step d, set temperature Ts is compared with actual room temperature Ta. If actual room temperature Ta is greater than set temperature Ts, the YES-path is taken. Otherwise, the NO-path is taken. When the YES-path is taken in step d,compressor 51 is driven in step e. Second drivingmotor 63 is driven to rotateexhaustion fan 35 andspray device 13 at a predetermined rotation value Es in step f. First drivingmotor 61 also is driven to rotatecirculation fan 29 at a prescribed rotation speed Cs in step g. The above-described steps a, b, c, d, e, f, and g are repeatedly executed until the actual room temperature Ta is equal to or smaller than the set temperature Ts in step d. When the actual room temperature Ta is equal to or lower than the set temperature Ts in step d, the NO-path is taken.Compressor 51 is stopped in step h. Second drivingmotor 63 is de- energized to stopexhaustion fan 35 in step i. Thus,spray device 15 also is stopped. In step j, the actual room temperature Ta is further compared with a value calculated by subtracting one degree centigrade (°C) from the set temperature Ts. When the actual room temperature Ta is equal to or lower than the value (Ts - 1], the YES-path is taken. First drivingmotor 61 is de-energized to stopcirculation fan 29 in step k. Otherwise, the NO-path is taken in step j. The rotational speed of first drivingmotor 61 is maintained to keep the rotational speed ofcirculation fan 29 at the prescribed rotation value Cs instep 1. After the execution of step k or l, the above-described step a is reexecuted. - With the above-described embodiment, since
exhaustion fan 35 is stopped when the actual room temperature Ts reaches the set temperature Ts, discharge of the water scattered byspray device 15 and the spontaneously evaporated water fromwater tank 43 to the outside the room are avoided. Thus, the frequency of water replenishment towater supply tank 47 can be reduced. In addition, since external hot air entering into the room also is avoided whilecompressor 51 stops, a comfortable air conditioning can be achieved. Furthermore, after the actual room temperature Ta is equal to or lower than the set temperature Ts, the difference between the actual room temperature Ta and the set temperature Ts is compared with a prescribed value andcirculation fan 39 is stopped in accordance with the result of this comparison. Thus, the comfortable air conditioning can be ensured. - In the above-described embodiment,
exhaustion fan 35 is stopped whencompressor 51 is stopped because the actual room temperature Ta is below the set temperature Ts. However, the rotational speed ofexhaustion fan 35 may be decreased by control section to a predetermined value El smaller than the prescribed value Es at whichexhaustion fan 35 rotates during the cooling operation to regulate air exhausted to the outside the room.Circulation fan 29 is stopped when the difference between the actual room temperature Ta and the set temperature Ts is greater than one degree centigrade (°C) after the actual room temperature Ta reaches the set temperature Ts. However, rather than stoppingcirculation fan 39, the rotational speed ofcirculation fan 39 may be decreased to a predetermined value Cl smaller than the prescribed value Cs at whichcirculation fan 39 rotates in the cooling operation to regulate air circulated in the room. - The present invention has been described with respect to a specific embodiment. However, other embodiments based on the principles of the present invention should be obvious to those of ordinary skill in the art. Such embodiments are intended to be covered by the claims.
Claims (18)
means for conditioning air in the defined space, the conditioning means having a condenser cooled by air and water, a part of the water being subject to evaporation;
exhaustion fan means operating at a prescribed rotational speed Es for exhausting air through the condenser to the outside of the defined space, the exhausted air conveying the evaporated water to the outside of the defined space;
means for driving the exhaustion fan means; and
means for controlling the driving means to decrease the amount of water conveyed by the exhausted air to the outside of the defined space when the actual temperature Ta reaches the set temperature Ts.
an outer casing for defining an inner space;
an evaporator disposed in the outer casing;
circulation fan means for taking air into the inner space from the defined space through the evaporator;
a condenser disposed in the outer casing;
water tank means, arranged in the outer casing, for storing water;
spray means for supplying water from the water tank means to the condenser to cool the condenser;
exhaustion fan means rotating at a predetermined rotational value Es for taking air from the outside of the casing and for exhausting the air to the outside of the defined space through the condenser, wherein air from outside the defined space enters into the defined space as air in the defined space is exhausted to the outside of the defined space; and
control means for decreasing the amount of air entering the defined space from outside the defined space when the compressor is stopped in comparison with the amount that enters when the compressor operates.
decreasing the rotational speed of the exhaustion fan to a prescribed rotational speed when the actual temperature Ta reaches the set temperature Ts.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP255151/89 | 1989-10-02 | ||
JP1255151A JP2845515B2 (en) | 1989-10-02 | 1989-10-02 | Integrated air conditioner |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0421699A2 true EP0421699A2 (en) | 1991-04-10 |
EP0421699A3 EP0421699A3 (en) | 1992-03-25 |
EP0421699B1 EP0421699B1 (en) | 1994-12-14 |
Family
ID=17274784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90310716A Expired - Lifetime EP0421699B1 (en) | 1989-10-02 | 1990-10-01 | Portable air conditioning apparatus and method for controlling the same |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0421699B1 (en) |
JP (1) | JP2845515B2 (en) |
KR (1) | KR930010718B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9420106U1 (en) * | 1994-11-14 | 1995-02-09 | Flamm Gunther | Room air treatment device |
WO2000016015A1 (en) * | 1998-09-12 | 2000-03-23 | Pil Ha Jeong | Single unit-type air conditioner capable of cooling refrigerant by water and air in indoor unit |
WO2000016022A1 (en) * | 1998-09-12 | 2000-03-23 | Pil Ha Jeong | Condenser cooling structure for single unit-type air conditioners |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100430294B1 (en) * | 2001-10-11 | 2004-05-04 | 엘지전자 주식회사 | Control method of Airconditioner |
CN101153726B (en) * | 2006-09-29 | 2010-05-12 | 关存良 | Integral movable multifunctional energy-saving air conditioner |
CN104791955B (en) * | 2015-04-20 | 2017-10-10 | 广东美的制冷设备有限公司 | Mobile air conditioner control method |
JP6767906B2 (en) * | 2017-03-27 | 2020-10-14 | ヤンマーパワーテクノロジー株式会社 | heat pump |
KR102301938B1 (en) * | 2017-10-20 | 2021-09-14 | 동우 화인켐 주식회사 | Flexible Display Device |
CN112503716B (en) * | 2020-12-11 | 2022-05-17 | 广东美的暖通设备有限公司 | Air conditioning equipment and control method thereof, design method of water receiving container and storage medium |
CN114811885B (en) * | 2021-06-21 | 2023-08-18 | 宁波奥克斯电气股份有限公司 | Compressor starting control method and air conditioner |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2722810A (en) * | 1954-06-18 | 1955-11-08 | Sr Pietro Maniscalco | Portable air conditioner |
GB2194631A (en) * | 1986-06-19 | 1988-03-09 | Angelo Ricagni | Movable air conditioner |
EP0341370A2 (en) * | 1988-05-13 | 1989-11-15 | Miralfin S.R.L. | Apparatus for conditioning the air in a room |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5850192Y2 (en) * | 1978-06-01 | 1983-11-15 | 松下電器産業株式会社 | air conditioner |
JPS5856063B2 (en) * | 1978-09-28 | 1983-12-13 | 株式会社東芝 | Air conditioner |
-
1989
- 1989-10-02 JP JP1255151A patent/JP2845515B2/en not_active Expired - Fee Related
-
1990
- 1990-09-29 KR KR1019900015825A patent/KR930010718B1/en not_active IP Right Cessation
- 1990-10-01 EP EP90310716A patent/EP0421699B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2722810A (en) * | 1954-06-18 | 1955-11-08 | Sr Pietro Maniscalco | Portable air conditioner |
GB2194631A (en) * | 1986-06-19 | 1988-03-09 | Angelo Ricagni | Movable air conditioner |
EP0341370A2 (en) * | 1988-05-13 | 1989-11-15 | Miralfin S.R.L. | Apparatus for conditioning the air in a room |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN, vol. 10, no. 273 (M-518)[2329], 17th September 1986; & JP-A-61 96 347 (SANYO ELECTRIC CO., LTD) 15-05-1986 * |
PATENT ABSTRACTS OF JAPAN, vol. 6, no. 113 (M-138)[991], 24th June 1982; & JP-A-57 43 153 (SHARP K.K.) 11-03-1982 * |
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 244 (M-252)[1389], 28th October 1983; & JP-A-58 129 121 (TOKYO SHIBAURA DENKI K.K.) 02-08-1983 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9420106U1 (en) * | 1994-11-14 | 1995-02-09 | Flamm Gunther | Room air treatment device |
WO2000016015A1 (en) * | 1998-09-12 | 2000-03-23 | Pil Ha Jeong | Single unit-type air conditioner capable of cooling refrigerant by water and air in indoor unit |
WO2000016022A1 (en) * | 1998-09-12 | 2000-03-23 | Pil Ha Jeong | Condenser cooling structure for single unit-type air conditioners |
Also Published As
Publication number | Publication date |
---|---|
KR910008345A (en) | 1991-05-31 |
EP0421699A3 (en) | 1992-03-25 |
JPH03122438A (en) | 1991-05-24 |
EP0421699B1 (en) | 1994-12-14 |
JP2845515B2 (en) | 1999-01-13 |
KR930010718B1 (en) | 1993-11-08 |
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