EP2270401A1 - Conditionneur d'air de pièce d'un système de climatisation de type séparable - Google Patents

Conditionneur d'air de pièce d'un système de climatisation de type séparable Download PDF

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Publication number
EP2270401A1
EP2270401A1 EP09162178A EP09162178A EP2270401A1 EP 2270401 A1 EP2270401 A1 EP 2270401A1 EP 09162178 A EP09162178 A EP 09162178A EP 09162178 A EP09162178 A EP 09162178A EP 2270401 A1 EP2270401 A1 EP 2270401A1
Authority
EP
European Patent Office
Prior art keywords
water
air conditioner
compressor
room air
water pump
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.)
Withdrawn
Application number
EP09162178A
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German (de)
English (en)
Inventor
Cheng-Chih Lin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bingdian Air Conditioning Co Ltd
Original Assignee
Bingdian Air Conditioning Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bingdian Air Conditioning Co Ltd filed Critical Bingdian Air Conditioning Co Ltd
Priority to EP09162178A priority Critical patent/EP2270401A1/fr
Publication of EP2270401A1 publication Critical patent/EP2270401A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
    • 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
    • F24F11/32—Responding to malfunctions or emergencies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/30—Condensation of water from cooled air

Definitions

  • the present invention relates to air conditioner system and more particularly, to a room air conditioner of a split type air conditioner system that allows drainage of condensed water selectively through a drain hole and a drain pipe in the installation place, or through an internal water tank subject to the operation of a water pump.
  • the split type air conditioner system is automatically powered off when the water level is abnormally high.
  • FIG. 1 illustrates the room air conditioner a of a conventional split type air conditioner system.
  • the room air conditioner comprises an evaporator 10, a water pan 20, a fan motor 30 and an electric control box 40.
  • the water pan 20 is set beneath the evaporator 10, having a drain hole 201 at one lateral side (see FIG. 2 ) for the connection of a drain pipe 50 to guide out collected condensed water (see FIG. 3 ).
  • the fan motor 30 and the electric control box 40 are provided at one lateral side relative to the evaporator 10 (see FIG. 1 ). Because water flows downwards, the drain pipe 50 must be extended downwards to carry away condensed water smoothly. Thus, the positioning of the drain pipe must match. Due to this reason, the installation of the room air conditioner a is constrained to certain limitations, and indoor decoration may be affected.
  • a drain pipe 50 to connect a water tank 60 to the room air conditioner a (see FIG. 4 ).
  • the water tank 60 uses power source separately and has installed therein a water pump 601 and a water level sensor 602.
  • the water pump 601 is started up to pump water out of the water tank 60 to the outside subject to detection operation of the water level sensor 602.
  • the water tank 60 is a separate member disposed outside the room air conditioner a, it obstruct the sense of beauty of the surroundings.
  • Taiwan Patent Publication Number 581226 teaches the use of a water pump in a room air conditioner.
  • the water pump is connected to one end of the drain pipe and received inside the room air conditioner for synchronous operation with on/off status of the room air conditioner.
  • This method has the water pump kept from sight, however collected condensed water can only be carried away from the water pan through the drain hole, the drain pipe and the water pump. If the room air conditioner fits the installation place where the drain pipe extends downwards, the water pump will be turned on synchronously when the room air conditioner is started up, wasting much power supply. Further, because the operation of the water pump is synchronous to the room air conditioner. When the room air conditioner is powered on, the water pump is started up.
  • a delay switch may be used to delay on/off of the water pump.
  • the compressor of the outdoor unit is repeatedly turned on and off during operation of the split type air conditioner system.
  • the water pump is kept in action either the compressor is on or off, i.e., the water pump is powered on when the split type air conditioner system is powered on.
  • the working life of the water pump is greatly shortened. Therefore, this design has the drawback of waste of power supply and short working life.
  • Taiwan Patent Publication Number 440672 teaches the arrangement of a water collector in a split type air conditioner system.
  • the water collector has installed therein a water pump and a water level sensor.
  • the water pump is started up to pump water out of the water collector.
  • the water level reaches a predetermined low level, the water pump is stopped.
  • This design has the automatic water drainage system be kept from sight and enables water is carried away by force.
  • the water level sensor will have no effect, and water may flow over the water collector into the indoor space when the compressor works continuously.
  • the present invention has been accomplished under the circumstances in view.
  • a room air conditioner of a split type air conditioner system in accordance with the present invention comprises an evaporator, a water pan provided beneath said evaporator, a fan motor and an electric control box located on one lateral side relative to the water pan, and a water tank disposed beneath the electric control box at one lateral side.
  • the water pan has a drain hole at one lateral side thereof for the connection of a drain pipe to guide out collected condensed water, and a side hole connected to the water tank through a connection tube.
  • the water tank has installed therein a water level sensor adapted for detecting the level of water in the water tank, and a water pump adapted to pump water out of the water tank after the drain hole has been blocked to let water flow from the water pan into the water tank.
  • the water pump and the water level sensor are respectively linked to the compressor of the outdoor unit of the split type air conditioner system such that on/off operation of the water pump is synchronous to on/off operation of the compressor, and the water level sensor outputs a signal to turn off the air compressor when detected a full-level signal.
  • the split type air conditioner system is powered off.
  • the room air conditioner can be made in the form of a chiller type.
  • the room type air conditioner has a space defied between the evaporator and the electric control box for the installation of a water valve.
  • the water valve is connected with the evaporator, having at least one water inlet pipe and at least one water outlet pipe.
  • the room air conditioner further comprises a fan set between the water pan and the evaporator, and a partition block set between the water valve and the fan.
  • the water valve is disposed above the partition block and the fan motor, and kept inside the housing of the room air conditioner.
  • the room air conditioner allows the user to select the drain path subject to the condition of the installation place.
  • the water pump is used for pumping water out of the room air conditioner, it is kept inside the housing of the room air conditioner, maintaining sense of beauty of the room air conditioner.
  • the water pump is linked to the compressor so that the water pump can be turned on/off synchronously with on/off operation of the compressor.
  • the water pump can be synchronously started up with the compressor, and turned off a predetermined time delay after the compressor has been stopped. Te water pump is turned off a predetermined time delay after the compressor is off, saving power consumption, assuring positive drainage of water and prolonging the working life.
  • the water level sensor is adapted to detect a full-level signal and has no concern with the pumping of the water pump.
  • the control program stops the compressor.
  • the control program powers off the split type air conditioner system, avoiding an overflow of water.
  • a water valve may be set in an inside space between the evaporator and the electric control box and kept inside the housing of the room air conditioner so that the room air conditioner is changed to a chiller type.
  • a room air conditioner A of a split type air conditioner system in accordance with the present invention has installed therein an evaporator 1, a water pan 2, a fan motor 3 and an electronic control box 4.
  • the water pan 2 is provided beneath the evaporator 1, having a drain hole 21 at one lateral side thereof (see FIGS. 7 and 8; FIG. 8 is the back side view of FIG. 7 ) for the connection of a drain pipe 5 to guide out collected condensed water.
  • the fan motor 3 and the electric control box 4 are located on one lateral side relative to the water pan 2.
  • the water pan 2 further has a side hole 22 (see FIGS.
  • connection tube 6 that is connected to a water tank 7 at one lateral side in the room air conditioner A (see FIG. 8 ).
  • the water tank 7 is provided beneath the electric control box 4, having installed therein a water pump 71 and a water level sensor 72 (see FIG. 9 ).
  • the main feature of the present invention is that the water pump 71 and the water level sensor 72 are respectively linked to the compressor (the compressor is installed in the outdoor unit, not shown in the drawing).
  • the water pump 71 can be turned on/off synchronously with on/off operation of the compressor.
  • the water pump 71 can be synchronously started up with the compressor, and turned off a predetermined time delay after the compressor has been stopped (the control function is as shown in FIG. 10 in which C: the control function of compressor; P: the control function of water pump; the predetermined time delay is 60 seconds).
  • the water level sensor 72 is adapted to detect a full-level signal, i.e., the water level sensor 72 detects a signal when the water level in the water tank 7 reaches the full reservoir level.
  • the water level sensor 72 When the water level sensor 72 detects a full-level signal, it immediately informs the program control to stop the compressor (the control function is as shown in FIG. 11 in which S: the control function of the water level sensor). Further, if it is still at the full reservoir level status when the compressor is stopped and the water pump 71 is turned off after a predetermined time delay, power off the split type air conditioner system.
  • the water tank 7 can be omitted. In this case, block the side hole 22 of the water pan 2 to let collected condensed water be directly guided out of the water pan 2 through the drain hole 21 into the drain pipe 5. Further, if the room air conditioner A is to be installed in a place where the existing downward drain pipe does not fit the drain hole 21 of the room air conditioner A, the water tank 7 must be installed inside the room air conditioner A. At this time, block the drain hole 21 for enabling collected condensed water to be guided into the water tank 7, and then connect a drain pipe 5 to the output port of the water pump 71 for drainage of collected condensed water (see FIG. 9 ).
  • the compressor and the water pump 71 can be turned off synchronously or, the water pump 71 can be turned off a predetermined time delay after the compressor is off, enabling collected condensed water be carried away.
  • the water pump 71 fails (otherwise collected condensed will be carried away smoothly and the full reservoir level will never reach) when the water level sensor 72 detects a full-level signal, thus the compressor can be stopped in time, avoiding continuous generation of condensed water. If the status of full reservoir level still in presence after the compressor is stopped and the water pump 71 is shut off, the split type air conditioner system will be powered off, and the room air conditioner A can be started up again only after reset of power.
  • the water tank 7 is an optional accessory of the improved structure of room air conditioner of the present invention, and the consumer (installer) can decide if to use the water tank 7 or not. If the room air conditioner A fits the installation place having a downward drain pipe that fits the drain hole 21 of the room air conditioner A (i.e., there is no any installation problem), the water tank 7 can be omitted, avoiding extra power consumption of the water pump 71. If the downward drain pipe in the installation place does not fit the drain hole 21 of the room air conditioner A, the water tank 7 enables collected condensed water to be carried away. Further, because the water tank 7 is provided inside the room air conditioner A and linked to the operation of the compressor, the water pump 71 has extended working life. Further, by means of the functioning of the water level sensor 72, the compressor will be stopped or the split type air conditioner system will be powered off in time when an abnormal high water level condition is detected, avoiding overflow of condensed water and eliminating the drawback of the prior art design.
  • an inside space S is left in the room air conditioner A between one lateral side of the evaporator 1 and the electric control box 4, and a water valve 9 is set in the space S and connected with the evaporator 1.
  • the water valve 9 has connected thereto at least one water inlet pipe 91 and one water outlet pipe 92.
  • a fan 8 is mounted in the room air conditioner A between the water pan 2 and the evaporator 1, and a spacer block A1 is set between the water valve 9 and the fan 8.
  • the water valve 9 is disposed above the spacer block A1 and the fan motor 3.
  • the water valve 9 is electrically controlled to switch the water flowing direction (letting water in or letting water out). At this time, no refrigerant piping is necessary, and the room air conditioner is prepared in the form of a chiller type air conditioner, and the water valve 9 is concealed inside the housing of the air conditioner and kept from sight.
  • FIGS. 5 ⁇ 12 A prototype of room air conditioner has been constructed with the features of FIGS. 5 ⁇ 12 .
  • the room air conditioner functions smoothly to provide all of the features disclosed earlier.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Air Conditioning Control Device (AREA)
EP09162178A 2009-06-08 2009-06-08 Conditionneur d'air de pièce d'un système de climatisation de type séparable Withdrawn EP2270401A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09162178A EP2270401A1 (fr) 2009-06-08 2009-06-08 Conditionneur d'air de pièce d'un système de climatisation de type séparable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09162178A EP2270401A1 (fr) 2009-06-08 2009-06-08 Conditionneur d'air de pièce d'un système de climatisation de type séparable

Publications (1)

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EP2270401A1 true EP2270401A1 (fr) 2011-01-05

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EP09162178A Withdrawn EP2270401A1 (fr) 2009-06-08 2009-06-08 Conditionneur d'air de pièce d'un système de climatisation de type séparable

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012164289A1 (fr) * 2011-06-01 2012-12-06 Charles Austen Pumps Limited Dispositif de collecte de condensat
ITTO20120591A1 (it) * 2012-07-04 2014-01-05 Bingdian Air Conditioning Co Ltd Condizionatore d'aria per ambienti di un sistema di condizionamento dell'aria a unità separate.
EP3633279A4 (fr) * 2017-05-22 2020-04-22 Mitsubishi Electric Corporation Dispositif unitaire pour dispositif à cycle frigorifique
CN112628847A (zh) * 2020-11-24 2021-04-09 青岛海尔空调电子有限公司 精密空调及其控制方法
CN113405218A (zh) * 2021-07-02 2021-09-17 宁波奥克斯电气股份有限公司 一种排水故障判断方法、装置及空调器
WO2023124168A1 (fr) * 2021-12-31 2023-07-06 美的集团武汉暖通设备有限公司 Unité intérieure de climatiseur et climatiseur

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0587385A (ja) * 1991-09-30 1993-04-06 Matsushita Refrig Co Ltd 空気調和機の制御装置
JPH08193745A (ja) * 1995-01-17 1996-07-30 Hitachi Ltd 空気調和機の制御方法
JPH09287759A (ja) * 1996-04-19 1997-11-04 Fujitsu General Ltd 空気調和機の排水装置
JPH10288384A (ja) * 1997-04-15 1998-10-27 Nikon Corp 空調機のドレン水排水装置及びドレン水排水装置を備えた空調システム
TW440672B (en) 2000-10-24 2001-06-16 Guo Sheng Feng Trading Entpr C Concealed automatic cold water drainage apparatus for separating type air conditioner
US20020000093A1 (en) * 2000-06-28 2002-01-03 Lea Doris W. Air conditioner condensation pan overflow protection
JP2002156129A (ja) * 2000-11-20 2002-05-31 Fujitsu General Ltd 空気調和機

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0587385A (ja) * 1991-09-30 1993-04-06 Matsushita Refrig Co Ltd 空気調和機の制御装置
JPH08193745A (ja) * 1995-01-17 1996-07-30 Hitachi Ltd 空気調和機の制御方法
JPH09287759A (ja) * 1996-04-19 1997-11-04 Fujitsu General Ltd 空気調和機の排水装置
JPH10288384A (ja) * 1997-04-15 1998-10-27 Nikon Corp 空調機のドレン水排水装置及びドレン水排水装置を備えた空調システム
US20020000093A1 (en) * 2000-06-28 2002-01-03 Lea Doris W. Air conditioner condensation pan overflow protection
TW440672B (en) 2000-10-24 2001-06-16 Guo Sheng Feng Trading Entpr C Concealed automatic cold water drainage apparatus for separating type air conditioner
JP2002156129A (ja) * 2000-11-20 2002-05-31 Fujitsu General Ltd 空気調和機

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012164289A1 (fr) * 2011-06-01 2012-12-06 Charles Austen Pumps Limited Dispositif de collecte de condensat
US10260770B2 (en) 2011-06-01 2019-04-16 Charles Austen Pumps Limited Condensate collection device
ITTO20120591A1 (it) * 2012-07-04 2014-01-05 Bingdian Air Conditioning Co Ltd Condizionatore d'aria per ambienti di un sistema di condizionamento dell'aria a unità separate.
EP3633279A4 (fr) * 2017-05-22 2020-04-22 Mitsubishi Electric Corporation Dispositif unitaire pour dispositif à cycle frigorifique
CN112628847A (zh) * 2020-11-24 2021-04-09 青岛海尔空调电子有限公司 精密空调及其控制方法
CN112628847B (zh) * 2020-11-24 2023-03-28 青岛海尔空调电子有限公司 精密空调及其控制方法
CN113405218A (zh) * 2021-07-02 2021-09-17 宁波奥克斯电气股份有限公司 一种排水故障判断方法、装置及空调器
CN113405218B (zh) * 2021-07-02 2022-03-29 宁波奥克斯电气股份有限公司 一种排水故障判断方法、装置及空调器
WO2023124168A1 (fr) * 2021-12-31 2023-07-06 美的集团武汉暖通设备有限公司 Unité intérieure de climatiseur et climatiseur

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