EP1039243A2 - Klimaanlage - Google Patents

Klimaanlage Download PDF

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Publication number
EP1039243A2
EP1039243A2 EP00104866A EP00104866A EP1039243A2 EP 1039243 A2 EP1039243 A2 EP 1039243A2 EP 00104866 A EP00104866 A EP 00104866A EP 00104866 A EP00104866 A EP 00104866A EP 1039243 A2 EP1039243 A2 EP 1039243A2
Authority
EP
European Patent Office
Prior art keywords
discharge port
drain
styrene
air conditioner
hydrogenated polymer
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
Application number
EP00104866A
Other languages
English (en)
French (fr)
Other versions
EP1039243B1 (de
EP1039243A3 (de
Inventor
Hironao Numoto
Masaharu Ota
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP1039243A2 publication Critical patent/EP1039243A2/de
Publication of EP1039243A3 publication Critical patent/EP1039243A3/de
Application granted granted Critical
Publication of EP1039243B1 publication Critical patent/EP1039243B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means

Definitions

  • the present invention relates to an indoor unit of a separate type air conditioner, and more particularly to a drain cap used in the indoor unit.
  • a drain pan unit playing the role of a drain pan was installed beneath a heat exchanger in order to collect dew condensation water generated in the indoor heat exchanger.
  • a main body base frame and an air diffuser grill also played the role of this drain pan unit.
  • dew condensation water was discharged outside by way of a drain hose.
  • the discharge port is disposed at two positions at both sides in the lower part of the indoor unit.
  • the discharge port not in use was closed by a drain cap.
  • As the drain cap hitherto, soft vinyl chloride resin has been generally used.
  • the vinyl chloride resin has an excellent forming property and a low material price, and hence has been used widely.
  • the air conditioner of the invention comprises:
  • the drain pan unit has a function of receiving the dew condensation water generated from the heat exchanger, and the drain cap is composed of a hydrogenated polymer of copolymer including styrene group and unsaturated hydrocarbon group.
  • the hydrogenated polymer of copolymer including styrene group and unsaturated hydrocarbon group includes a hydrogenated polymer of styrene-butadiene block copolymer or a hydrogenated polymer of styrene-isoprene block copolymer.
  • the drain pan unit is made of high-impact styrene resin.
  • drain cap decreases, and the effect for preventing leak of dew condensation water lasts for a longer period, and the long-term reliability of the air conditioner is improved.
  • the procedure of detaching the drain cap and attaching again is easier. More important, the drain cap is not separated from the drain pain unit, and can be recycled by processing together.
  • An air conditioner comprises a heat exchanger for exchanging heat with air, a drain pan unit disposed in the lower direction of the heat exchanger, in which the drain pan unit has a function of receiving dew condensation water generated from the heat exchanger, a first discharge port and a second discharge port disposed to communicate with the drain pan unit, a drain hose connected to the first discharge port, and a drain cap disposed in the second discharge port, in which the drain cap is composed of a hydrogenated polymer of copolymer including styrene group and unsaturated hydrocarbon group.
  • the drain pan unit has a function of receiving the dew condensation water generated from the heat exchanger.
  • the unsaturated hydrocarbon group is butadiene.
  • the unsaturated hydrocarbon group is isoprene.
  • the hydrogenated polymer of copolymer including styrene group and unsaturated hydrocarbon group includes a block copolymer of styrene group and unsaturated hydrocarbon group.
  • the hydrogenated polymer of copolymer including styrene group and unsaturated hydrocarbon group includes a block copolymer of styrene and butadiene.
  • the hydrogenated polymer of copolymer including styrene group and unsaturated hydrocarbon group includes a block copolymer of styrene and isoprene.
  • the hydrogenated polymer of copolymer including styrene group and unsaturated hydrocarbon group is elastic.
  • An air conditioner in other embodiment of the invention comprises a heat exchanger installed in an indoor unit of a separate type air conditioner, and a drain pan unit disposed beneath the heat exchanger.
  • the drain pan unit has a discharge port for discharging the dew condensation water dripping from the heat exchanger, and the discharge port is disposed at two positions at both side in the lower part of the indoor unit main body.
  • a drain hose is disposed at one opening of the discharge port.
  • a cap is disposed at other opening of the discharge port.
  • the cap is composed of hydrogenated matter of styrene-butadiene block copolymer, or hydrogenated matter of styrene-isoprene block copolymer, in particular, among other styrene elastomers.
  • the hardness of the drain cap is about 50 to 65 deg. in JIS K 6301-A testing method.
  • JIS K 6301-A testing method an excellent water sealing performance is obtained, and the excellent water sealing performance is maintained for a longer period, and the water sealing performance is enhanced.
  • the drain pan unit is made of a resin containing styrene.
  • the drain pan unit is made of high-impact styrene resin.
  • FIG. 1 A sectional view of an indoor unit main body of an air conditioner in an embodiment of the invention is shown in Fig. 1.
  • FIG. 2 A back view of the indoor unit main body is given in Fig. 2.
  • Fig. 3 A sectional view of a drain cap used in the embodiment of the invention is shown in Fig. 3.
  • the indoor unit main body comprises a base frame 9, a first suction grill 1, a second suction grill 2, a first heat exchanger 3, a second heat exchanger 4, a first drain pan unit 7, a second drain pan unit 8, a discharge route (not shown), a cross flow fan 5, an air diffuser grill 10, a first discharge port 15a, a second discharge port 15b, a drain hose 11, and a drain cap 12.
  • a water distribution route has a first water distribution route, a second water distribution route, and a third water distribution route.
  • the first suction grill 1 is installed in the upper part of the indoor unit main body, and the second suction grill 2 is installed at the front side of the indoor unit main body.
  • the first heat exchanger 3 is installed near the first suction rill 1
  • the second heat exchanger 4 is installed near the second suction grill 2.
  • the first air diffuser grill 10 is installed at the lower side of the second suction grill 2, or in the lower part of the indoor unit main body, or at the corner of front part and lower part.
  • the cross flow fan 5 is installed between the first heat exchanger 3 and second heat exchanger 4, near the first air diffuser grill 10.
  • the first drain pan unit 7 is installed at the lower side of the first heat exchanger 3, and the second drain pan unit 8 is installed at the lower side of the second heat exchanger 4.
  • the third water distribution route (not shown) is disposed so as to connect the first drain pan unit 7 and second drain pan unit 8.
  • the outer frame 9 functions as the third water distribution route.
  • the first discharge port 15a and second discharge port 15b communicate with the second drain pan unit 8.
  • the first discharge port 15a is positioned in the left end region at the back side of the indoor unit main body, and the second discharge port 15b is positioned in the right end region at the back side of the indoor unit main body.
  • the first water distribution route (not shown) is positioned between the second drain pan unit 8 and first discharge port 15a
  • the second water distribution route (not shown) is positioned between the second drain pan unit 8 and second discharge port 15b.
  • the drain hose 11 is connected to the first discharge port 15a or second discharge port 15b.
  • the drain hose 11 is connected to the second discharge port 15b.
  • the drain cap 12 is disposed at the discharge port side not connected to the drain hose 11.
  • the drain cap 12 is disposed at the first discharge port 15a.
  • either the first water distribution route or the second water distribution route may be omitted, and at least one of the first discharge port 15a and second discharge port 15b may be directly disposed in the second drain pan unit 8.
  • the drain cap 12 has, for example, a cylindrical part 12a, a knob part 12b, and a protrusion part 12c as shown in Fig. 3.
  • the knob part 12b has such a shape as to close the opening of the cylindrical part.
  • the drain cap 12 is attached to the discharge port 15 so that the cylindrical part 12a is inserted into the discharge port 15, and that the protrusion part 12c contacts with the end portion of the discharge port 15.
  • the shape of the drain cap 12 is not limited to the example shown in Fig. 3, but the shape may be arbitrary.
  • the drain cap may be shaped as shown in Fig. 4 (a), Fig. 4 (b) and Fig.
  • FIG. 4 (c) that is, a columnar shape, a columnar shape forming a protrusion, and a shape enclosing the inner circumference and outer circumference of the end portion of the discharge port.
  • the cylindrical part 12d is inserted into the discharge port 15.
  • the columnar part 12e is inserted into the discharge port 15, and the cover part 12f covers the outer circumference of the leading end of the discharge port 15.
  • the outer circumference 12g is disposed to cover the outer circumference of the discharge port 15.
  • the drain cap 12 as an elasticity of rubber.
  • the discharge port 15 has the first discharge port 15a and second discharge port 15b, but not limited to this constitution, a plurality of discharge ports may be formed.
  • a third discharge port may be formed, and the drain hose or drain cap may be fitted in this third discharge port.
  • the room air is sucked into the indoor unit main body through the first suction grill 1 and second suction grill 2.
  • the sucked air is cooled and dehumidified by the first heat exchanger 3 and second heat exchanger 4.
  • the cooled and dehumidified air is sucked and blown by the cross flow fan 5, and is discharged into the room through the air diffuser 6.
  • the air is dehumidified by the heat exchangers 3, 4, and dew condensation water is formed in the dehumidifying process.
  • the formed dew condensation water is collected in the first drain pan unit 7 and second drain pan unit 8.
  • the first drain pan unit 7 is formed integrally in the base frame 9 of the indoor unit
  • the second drain pan unit 8 is formed integrally in the air diffusion grill 10.
  • the dew condensation water collected in the first drain pan unit 7 is poured into the second drain pan unit 8 through the first water distribution route (not shown).
  • the dew condensation water flowing into the second drain pan unit 8 is discharged outside of the indoor unit through the drain hose 11 connected to the discharge port.
  • the two discharge ports that is, the first discharge port 15a and second discharge port 15b are installed at both sides in the lower part of the indoor unit main body. That is, the discharge ports are provided at both sides of the indoor unit main body, and when installing the air conditioner, the laying work of connection piping is easy, and the ease of installation of the air conditioner is enhanced.
  • the drain hose 11 is connected to one discharge port of the first discharge port 15a and second discharge port 15b. Therefore, the drain cap 12 is placed at the discharge port of the side not connected to the drain hose 11.
  • the drain hose 11 is installed at the second discharge port 15b
  • the drain cap 12 is installed at the first discharge port 15a.
  • the drain cap 12 By the use of the drain cap 12, sufficient water sealing is assured.
  • the drain hose 11 may be connected to the first discharge port 15a instead of the original second discharge port 15b.
  • the drain cap 12 is detached from the first discharge port 15a, and the detached drain cap 12 is fitted to the second discharge port 15b.
  • the material of the drain cap 12 includes hydrogenated polymer of styrene-butadiene block copolymer, or hydrogenated polymer of styrene-isoprene block copolymer.
  • the hydrogenated polymer of styrene-butadiene block copolymer has hydrogen (H) added to the unsaturated group of styrene-butadiene block copolymer.
  • the hydrogenated polymer of styrene-isoprene block copolymer has hydrogen (H) added to the unsaturated group of styrene-isoprene copolymer.
  • the material of the drain cap 12 may also contain additives such as reinforcing filler, deterioration inhibitor and forming aid in the hydrogenated polymer of styrene-butadiene block copolymer, or hydrogenated polymer of styrene-isoprene block copolymer.
  • the hydrogenated polymer of styrene-butadiene block copolymer is used.
  • the properties of the hydrogenated polymer of styrene-butadiene block copolymer are shown in Table 1.
  • the drain cap 12 having the shape as shown in Fig. 3 was used.
  • the practicability test the initial pulling strength was measured when pulling out the drain cap to the discharge port.
  • the indoor unit provided with the drain cap was kept in a 60°C atmosphere for 7 days, and the drain cap was pulled out from the discharge port, and the pulling strength was measured.
  • the drain cap 12 deteriorates thermally.
  • the hydrogenated polymer of styrene-butadiene block copolymer presented equal or better ease of detachability as compared with the conventional soft vinyl chloride resin. That is, the drain cap of the embodiment had a proper strength of attaching and detaching. As a result of puling test in the initial phase and after thermal aging, in the indoor unit using the drain cap of the embodiment, the drain cap could be pulled out with nearly same force as in the indoor unit using the conventional soft vinyl chloride resin. In particular, the drain cap of the embodiment maintained the same pulling strength as in the initial phase even after thermal aging. By contrast, the conventional drain cap required greater pulling strength after thermal aging.
  • the drain cap of the embodiment can be easily removed from the discharge port when moving the indoor unit installed in the room for a long period and installing in other place. Moreover, the drain cap of the embodiment has a smaller density than the conventional drain cap, and hence the weight of the indoor unit can be reduced.
  • other materials suited to the drain cap include hydrogenated polymer of styrene-isoprene block copolymer.
  • the drain cap was similarly fabricated, and the properties and practicability were measured. As a result, the same findings as above were obtained. That is, the pulling strength after thermal aging was same as the initial pulling strength, deterioration of drain cap was not recognized. In the practicability test, the drain cap of the embodiment can be removed more easily than the conventional drain cap.
  • copolymers used in these examples do not contain unsaturated bond, and were excellent in heat resistance and weatherability.
  • the hardness of the drain cap 12 used in the indoor unit is preferred to be in a range of about 50 to 65 deg. as measured in accordance with JIS K 6301-A. If the hardness is less than 50, the pulling strength is extremely small, and the leak preventing effect (that is, water sealing effect) of dew condensation water from the discharge port for a long period tends to be inferior. If the hardness is over 65, the pulling strength is extremely large, and as detaching and attaching test was repeated, the knob breakage rate increased.
  • An object of the invention is to reduce the environmental load and improve the recycling performance.
  • the drain pan unit is preferred to be made of high-impact styrene resin.
  • the high-impact styrene resin is a resin containing styrene having a high impact strength.
  • the hydrogenated polymer of styrene-butadiene block copolymer and hydrogenated polymer of styrene-isoprene block copolymer used in the invention are excellent in compatibility with high-impact styrene resin.
  • the material recycling is easy. Properties of the part made of the recycled mixed material were not lowered. For example, the mechanical strength, hardness and other properties maintained the specified performance. Incidentally, the specific gravity of drain cap and air diffusion grill is small, and by material recycling in their mixed state, the properties were hardly lowered. Therefore, when discarding and recycling the air conditioner, it is not required to remove the drain cap from the drain pan unit, and material recycling is facilitated.

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  • 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)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
EP00104866A 1999-03-26 2000-03-07 Klimaanlage Expired - Lifetime EP1039243B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8333599 1999-03-26
JP08333599A JP3606099B2 (ja) 1999-03-26 1999-03-26 空気調和機

Publications (3)

Publication Number Publication Date
EP1039243A2 true EP1039243A2 (de) 2000-09-27
EP1039243A3 EP1039243A3 (de) 2001-05-16
EP1039243B1 EP1039243B1 (de) 2004-01-21

Family

ID=13799577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00104866A Expired - Lifetime EP1039243B1 (de) 1999-03-26 2000-03-07 Klimaanlage

Country Status (5)

Country Link
EP (1) EP1039243B1 (de)
JP (1) JP3606099B2 (de)
DE (1) DE60007791T2 (de)
ES (1) ES2211395T3 (de)
MY (1) MY122650A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008084277A1 (en) * 2007-01-10 2008-07-17 Carrier Corporation Condensate removal system
CN103673081A (zh) * 2012-09-20 2014-03-26 珠海格力电器股份有限公司 空调器室内机
CN106052078A (zh) * 2016-08-16 2016-10-26 芜湖美智空调设备有限公司 空调器和用于空调器的接水盘组件
CN111998501A (zh) * 2020-07-22 2020-11-27 珠海格力电器股份有限公司 一种空调器室内机排水系统脏堵检测方法、装置和处理器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3102654A (en) * 1961-03-22 1963-09-03 American Air Filter Co Condensate drip pan construction and mounting arrangement therefor
US4416327A (en) * 1979-10-13 1983-11-22 Tokyo Shibaura Denki Kabushiki Kaisha Casing for an interior unit of a split type of an air conditioning apparatus
US4597269A (en) * 1984-09-20 1986-07-01 Kim Il Y Plastic pan having a refrigerator support
US5071027A (en) * 1991-04-05 1991-12-10 Sullivan John T Convector tray for a fan coil unit
DE29603840U1 (de) * 1996-03-01 1997-06-26 AEG Hausgeräte GmbH, 90429 Nürnberg Kältegerät
US5747618A (en) * 1996-09-27 1998-05-05 Univ Boston Allene/alkyne copolymers

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JPS6137242A (ja) * 1984-07-31 1986-02-22 塩谷エムエス株式会社 輸液用止栓
JP3013566B2 (ja) * 1992-01-07 2000-02-28 三菱電機株式会社 空気調和機の室内ユニット
JPH07205177A (ja) * 1994-01-20 1995-08-08 Shinko Kasei Kk 弾性バッキング材の製造方法
JPH07275345A (ja) * 1994-04-14 1995-10-24 Asahi Chem Ind Co Ltd 耐熱性、回復特性に優れた医療用栓体
JPH07292211A (ja) * 1994-04-25 1995-11-07 Asahi Chem Ind Co Ltd 耐屈曲亀裂性に優れたホース
JP3081491B2 (ja) * 1995-02-28 2000-08-28 三洋電機株式会社 ドレンパン及びこのドレンパンを備えた空気調和機
JPH09221516A (ja) * 1996-02-15 1997-08-26 Mitsui Petrochem Ind Ltd オレフィン系熱可塑性エラストマー組成物

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3102654A (en) * 1961-03-22 1963-09-03 American Air Filter Co Condensate drip pan construction and mounting arrangement therefor
US4416327A (en) * 1979-10-13 1983-11-22 Tokyo Shibaura Denki Kabushiki Kaisha Casing for an interior unit of a split type of an air conditioning apparatus
US4597269A (en) * 1984-09-20 1986-07-01 Kim Il Y Plastic pan having a refrigerator support
US5071027A (en) * 1991-04-05 1991-12-10 Sullivan John T Convector tray for a fan coil unit
DE29603840U1 (de) * 1996-03-01 1997-06-26 AEG Hausgeräte GmbH, 90429 Nürnberg Kältegerät
US5747618A (en) * 1996-09-27 1998-05-05 Univ Boston Allene/alkyne copolymers

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
FLOHIC M C LE: "EVOLUTION DE LA CONCEPTION DES APPAREILS DE CLIMATISATION POUR EN FACILITER LE RECYCLAGE" INGENIEURS DE L'AUTOMOBILE, no. 695, 1 March 1995 (1995-03-01), pages 67-69, XP000495946 FR, RAIP. BOULOGNE ISSN: 0020-1200 *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 12, 25 December 1997 (1997-12-25) -& JP 09 221516 A (MITSUI PETROCHEM IND LTD), 26 August 1997 (1997-08-26) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008084277A1 (en) * 2007-01-10 2008-07-17 Carrier Corporation Condensate removal system
CN103673081A (zh) * 2012-09-20 2014-03-26 珠海格力电器股份有限公司 空调器室内机
CN106052078A (zh) * 2016-08-16 2016-10-26 芜湖美智空调设备有限公司 空调器和用于空调器的接水盘组件
CN111998501A (zh) * 2020-07-22 2020-11-27 珠海格力电器股份有限公司 一种空调器室内机排水系统脏堵检测方法、装置和处理器

Also Published As

Publication number Publication date
JP2000274723A (ja) 2000-10-06
DE60007791D1 (de) 2004-02-26
MY122650A (en) 2006-04-29
EP1039243B1 (de) 2004-01-21
ES2211395T3 (es) 2004-07-16
EP1039243A3 (de) 2001-05-16
DE60007791T2 (de) 2004-11-04
JP3606099B2 (ja) 2005-01-05

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