EP2450643A1 - Climatiseur - Google Patents

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Publication number
EP2450643A1
EP2450643A1 EP10793974A EP10793974A EP2450643A1 EP 2450643 A1 EP2450643 A1 EP 2450643A1 EP 10793974 A EP10793974 A EP 10793974A EP 10793974 A EP10793974 A EP 10793974A EP 2450643 A1 EP2450643 A1 EP 2450643A1
Authority
EP
European Patent Office
Prior art keywords
passage
drain pan
air conditioner
condensed water
exterior
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Withdrawn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
EP10793974A
Other languages
German (de)
English (en)
Other versions
EP2450643A4 (fr
Inventor
Akihiko Sakashita
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.)
Daikin Industries Ltd
Original Assignee
Daikin Industries 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 Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of EP2450643A1 publication Critical patent/EP2450643A1/fr
Publication of EP2450643A4 publication Critical patent/EP2450643A4/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Withdrawn legal-status Critical Current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
    • 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
    • F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
    • 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
    • F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
    • 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
    • F24F13/20—Casings or covers
    • 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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F2013/0616—Outlets that have intake openings
    • 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
    • F24F2013/227—Condensate pipe for drainage of condensate from the evaporator

Definitions

  • the present invention relates to an air conditioner. More specifically, the present invention relates to a ceiling-buried type or ceiling-suspended type air conditioner for discharging condensed water from a heat exchanger stored in a drain pan to an exterior of the air conditioner by a drain pump.
  • a drain pump In a ceiling-buried type or ceiling-suspended type air conditioner (indoor unit), in general, condensed water from a heat exchanger stored in a drain pan arranged on the lower side of the heat exchanger is discharged to an exterior of the air conditioner by a drain pump.
  • the air conditioner is disassembled so that the drain pump and the drain pan can be detached, and the drain pan and the like are manually cleaned.
  • a cleaning task requires time and effort and hence is uneconomical.
  • Patent Literature 1 an air conditioner capable of discharging muddy-water-like condensed water stored in a drain pan from an exterior without disassembling the air conditioner.
  • the drain pan described in Patent Literature 1 is provided with a cleaning tube having a suction part and a discharge part, and a suction port of the suction part is fixed to the vicinity of a bottom part of the drain pan, whereas a discharge port of the discharge part is exposed to an exterior of the air conditioner so as to be connected to an indoor muddy water cleaner.
  • the present invention is achieved in consideration with such situations, and an object thereof is to provide an air conditioner capable of readily performing maintenance tasks of a drain pan including inspection of an interior of the drain pan and supply of an antibacterial material into the drain pan from an exterior.
  • An air conditioner of the present invention includes a substantially box-shaped casing, a fan arranged in the casing, a heat exchanger arranged in the casing, a drain pan for storing condensed water from the heat exchanger, and a drain pump for discharging the condensed water stored in the drain pan to an exterior of the air conditioner, wherein the air conditioner further includes a passage through which a flexible long body for maintaining the air conditioner is inserted from the exterior to the vicinity of a bottom part of the drain pan, the passage only includes one, two or more of a straight part, an obtuse bent part and a curved part, and the passage has a high level passage part placed at a higher position than a suction port of the drain pump.
  • the air conditioner of the present invention is provided with the passage through which the flexible long body is inserted from the exterior of the drain pan to the vicinity of the bottom part of the drain pan.
  • the passage only includes one, two or more of the straight part, the obtuse bent part and the curved part.
  • the flexible long body used for maintaining the drain pan such as a fiberscope for inspecting an interior of the drain pan, a water drainage tube for discharging the condensed water in the drain pan to the exterior, an antibacterial material supplying long body for supplying an antibacterial material into the drain pan, and a water injection tube for supplying cleaning water to the vicinity of the bottom part of the drain pan can be readily and smoothly inserted from the exterior into the drain pan. Therefore, maintenance tasks such as inspection and cleaning of the drain pan can be easily performed from the exterior without detaching the drain pan from the air conditioner.
  • the passage has the high level passage part placed at a higher position than the suction port of the drain pump. Thus, the condensed water in the drain pan does not leak out to the exterior through the passage.
  • the "passage" in the present invention includes not only a passage formed in the drain pan itself but also a tube serving as separate body from the drain pan, and further, a passage formed by combining such a tube and the passage formed in the drain pan itself.
  • the flexible long body may be at least one of a fiberscope for inspecting an interior of the drain pan, a water drainage tube for discharging the condensed water in the drain pan to the exterior, an antibacterial material supplying long body for supplying an antibacterial material into the drain pan, and a water injection tube for supplying cleaning water to the vicinity of the bottom part of the drain pan.
  • a fiberscope for inspecting an interior of the drain pan
  • a water drainage tube for discharging the condensed water in the drain pan to the exterior
  • an antibacterial material supplying long body for supplying an antibacterial material into the drain pan
  • a water injection tube for supplying cleaning water to the vicinity of the bottom part of the drain pan.
  • the passage may include a first passage through which a fiberscope for inspecting an interior of the drain pan is inserted, and a second passage through which a water drainage tube for discharging the condensed water in the drain pan to the exterior is inserted.
  • the interior of the drain pan can be visually inspected using the fiberscope inserted through the first passage, and the condensed water in the drain pan can be discharged to the exterior using the water drainage tube inserted through the second passage. If necessary, while inspecting the interior by the fiberscope, the condensed water can be discharged.
  • the passage may include a first passage through which a fiberscope for inspecting an interior of the drain pan is inserted, a second passage through which a water drainage tube for discharging the condensed water in the drain pan to the exterior is inserted, and a third passage through which an antibacterial material supplying long body for supplying an antibacterial material into the drain pan is inserted.
  • the interior of the drain pan can be visually inspected using the fiberscope inserted through the first passage, the condensed water in the drain pan can be discharged to the exterior using the water drainage tube inserted through the second passage, and further, the antibacterial material can be supplied into the drain pan using the third passage. If necessary, while inspecting the interior by the fiberscope, the condensed water can be discharged.
  • an interior side opening of the first passage is arranged on the upper side of an interior side opening of the second passage. Since the interior side opening of the first passage through which the fiberscope is inserted is arranged on the upper side of the interior side opening of the second passage from which the condensed water is discharged, the bottom part or the like of the drain pan can be observed from a high position. Therefore, more precise inspection can be performed.
  • a water drainage tube for discharging the condensed water in the drain pan to the exterior may be arranged, and the water drainage tube may have a high level passage part placed at a higher position than the suction port of the drain pump at least at the time of operating the air conditioner.
  • the interior of the drain pan can be inspected using the passage through which the fiberscope serving as the flexible long body is inserted, and the condensed water in the drain pan can be discharged to the exterior using the water drainage tube.
  • the water drainage tube is not inserted from the exterior at the time of use but fixed to the drain pan.
  • a route and a degree of bent of the tube are not particularly limited.
  • the air conditioner may further include a decorative panel having a suction port for the air, and an outlet of the passage may be arranged on the upper side of the suction port of the decorative panel.
  • the air conditioner may further include a decorative panel having a suction port for the air, the decorative panel being provided with a detachable corner cover in a corner part thereof, and an outlet of the passage may be arranged on the upper side of the corner cover. According to the above configuration, only by detaching the corner cover, the access to the outlet of the passage can be easily obtained. Thus, the fiberscope or the like can be readily inserted into the drain pan.
  • An openable and closable lid part may be arranged in the outlet of the passage. According to the above configuration, the condensed water in the drain pan can be more reliably prevented from leaking out from the outlet of the passage to the exterior. In a case where there is no condensed water in the drain pan at the time of heating or the like, the air on the secondary side of the heat exchanger can be prevented from leaking out to the suction side. Further, insects and the like can be prevented from coming into the drain pan.
  • a scale mark indicating height from an inner bottom surface of the drain pan may be provided on a side surface of the drain pan.
  • a retaining part for accommodating the antibacterial material may be provided in an interior side opening of the third passage.
  • At least part of the retaining part may be formed of a mesh, a net, or a lattice. According to the above configuration, while sufficiently ensuring contact between the condensed water and the antibacterial material, the antibacterial material can be effectively prevented from scattering.
  • a locking part for locking an accommodation container receiving the condensed water discharged from the outlet may be arranged. According to the above configuration, a worker is not required to hold the accommodation container receiving the condensed water at the time of draining the water. Thus, workability can be improved to a large extent.
  • the passage may be formed by the drain pan and a lid body covering the drain pan. According to the above configuration, the passage can be easily formed by the drain pan and the lid body. Specifically, for example, the passage can be formed by a groove part formed in the drain pan and the lid body covering the groove part. Conversely, the passage can be formed by a groove part formed in the lid body and the drain pan.
  • a connection tool for connecting a tube serving as the flexible long body may be arranged in the outlet of the passage. According to the above configuration, by using the connection tool, the tube serving as a flexible hollow body can be easily connected to the outlet of the passage. Via the tube, the cleaning water can be charged into the drain pan and the condensed water in the drain pan can be discharged to the exterior.
  • the maintenance tasks of the drain pan including the inspection of the interior of the drain pan and supply of the antibacterial material into the drain pan can be readily performed from the exterior.
  • Fig. 1 is a side view for illustrating an air conditioner A according to a first embodiment of the present invention
  • Fig. 2 is a plan view for illustrating the air conditioner A
  • Fig. 3 is a view for illustrating major parts of the air conditioner A.
  • the air conditioner A is a ceiling-buried type air conditioner to be arranged on the back of a ceiling, and includes a casing 1, a decorative panel 10, a fan 20 arranged in the casing 1, a heat exchanger 30 arranged in the casing 1 so as to surround the fan 20, a drain pan 40 for storing condensed water from the heat exchanger 30, and a drain pump 50 for discharging the condensed water stored in the drain pan 40 to an exterior of the air conditioner.
  • the casing 1 has a substantially box shape in which a lower surface is opened, and is manufactured by a steel plate or the like.
  • the casing 1 is suspended from a ceiling slab or a floor slab of an upper floor by suspending bolts (not shown) locked onto suspending fittings 2 (refer to Fig. 2 ).
  • An insulating member 3 is arranged on an inner peripheral surface of the casing 1.
  • the decorative panel 10 is arranged so as to cover an opening in the center of the lower surface of the casing 1, and has an air inlet 11 for suctioning the air in an air-conditioned room, and four air outlets 12 arranged in an outer periphery of the air inlet 11 so as to form a rectangular shape. As shown in Figs. 2 to 3 , detachable corner covers 13 are respectively arranged in corner parts of the rectangular decorative panel 10.
  • a suction grille 15 In the air inlet 11, a suction grille 15, a filter 16 for removing grist, dust and the like in the air suctioned from the suction grille 15, and a bell mouth 21 for guiding the air suctioned from the air inlet 11 into the casing 1 on the upper side of the filter 16 are arranged.
  • the bell mouth 21 is fixed to the drain pan 40 by a fixing means such as a screw (not shown).
  • the fan 20 is a centrifugal fan for suctioning the air in the air-conditioned room into the casing 1 via the air inlet 11 and discharging the air in the outer peripheral direction.
  • a motor 22 constituting the fan 20 is fixed to a top plate part 1a of the casing 1 via a rubber vibration insulator 23.
  • the heat exchanger 30 is a cross fin tube type heat exchanger panel formed by bending so as to surround an outer periphery of the fan 20, and is connected to an outdoor unit (not shown) installed in an outdoor site or the like via a refrigerant piping.
  • the heat exchanger 30 is formed so as to function as an evaporator for a coolant flowing through an interior at the time of cooling operation and as a condenser for the coolant flowing through the interior at the time of heating operation.
  • the heat exchanger 30 exchanges heat with the air sucked into the casing 1 through the air inlet 11 and blown off from a fan rotor 24 of the fan 20 so as to cool the air at the time of the cooling operation and to heat the air at the time of the heating operation.
  • the drain pan 40 is arranged on the lower side of the heat exchanger 30, and receives and stores the condensed water generated by condensing moisture in the air in the heat exchanger 30.
  • the drain pan 40 is a plate-shaped member manufactured with synthetic resin or the like, and installed in a lower part of the casing 1.
  • the drain pump 50 operated in accordance with a signal from a float switch 56 (refer to Fig. 2 ) for discharging the condensed water stored in the drain pan 40 to the exterior of the air conditioner is arranged.
  • the drain pump 50 is fixed to a bracket 53 attached to the casing 1 via a rubber vibration insulator 52 in such a manner that a suction port 51 thereof is positioned on the about 10 mm upper side of a bottom surface 44 of the drain pan 40.
  • the condensed water suctioned by the drain pump 50 is discharged to the exterior of the air conditioner via a drain pipe 54.
  • the reference sign 55 denotes a drainage port to which a hose (not shown) for discharging the condensed water to the exterior of the air conditioner is connected.
  • a passage 60 including a first passage 60a, a second passage 60b, and a third passage 60c is provided in the drain pan 40.
  • the passages 60a, 60b, 60c are formed by three groove parts 41a, 41b, 41c formed in the drain pan 40, and a lid body 42 covering the groove part 41.
  • the first passage 60a (refer to Fig. 6 ) is a passage through which a fiberscope 91 (refer to Fig. 6 ) for inspecting an interior of the drain pan 40 is inserted
  • the second passage 60b (refer to Figs. 3 to 4 ) is a passage through which a water drainage tube 92 (refer to Fig.
  • the third passage 60c (refer to Fig. 7 ) is a passage through which a supply bar 93 (refer to Fig. 7 ) serving as an antibacterial material supplying long body for supplying an antibacterial material into the drain pan 40 is inserted.
  • a water injection tube for injecting cleaning water for cleaning the interior of the drain pan 40 can be inserted through the first passage 60a.
  • the three groove parts 41a, 41b, 41c respectively include groove parts 41a1, 41b1, 41c1 having a substantially semi-arc or substantially U-shaped section, the groove parts being formed in an upper stage part 40a of the drain pan 40, and groove parts 41a2, 41b2, 41c2 formed in inclination bases 45a, 45b, 45c arranged in a corner part made by the upper stage part 40a and a side wall 40d of the drain pan 40.
  • the groove part 41b constituting the second passage 60b is formed so as to extend from the upper stage part 40a of the drain pan 40 further to a middle stage part 40b, and opens at a lower stage part (bottom part) 40c of the drain pan 40 at the end.
  • the lower stage part (bottom part) 40c of the drain pan 40 is formed into a keyhole shape when seen from the upper side, a retaining part 82 accommodating the antibacterial material described later is arranged in a rectangular part thereof, and the suction port 51 of the drain pump 50 is arranged on the upper side of a circular part thereof.
  • a groove part 42b communicating with the groove part 41a1 of the first passage 60a is formed, and a groove part 42c communicating with the groove part 41c1 of the third passage 60c is formed.
  • An interior side end of the groove 42c communicates with an interior of the retaining part 82 of the antibacterial material.
  • An upper surface 82a of the retaining part 82 and a side surface 82b excluding a surface in which the groove part 42c opens are formed of a synthetic resin net.
  • an outlet 62 of the passage 60 is closed by a stopper or a plug 63 serving as a lid part.
  • Fig. 3 shows a state that an outlet 62b of the second passage 60b is closed by a plug 63b, outlets of the first passage 60a and the third passage 60c are similarly closed by plugs.
  • the passages 60a, 60b, 60c have high level passage parts 61a, 61b, 61c placed at higher positions than the suction port 51 of the drain pump 50 at the time of operating the air conditioner A.
  • the condensed water in the drain pan 40 can be reliably prevented from leaking out to the exterior of the air conditioner through the outlet 62.
  • the plug 63 By closing the outlet 62 with the plug 63, in a case where there is no condensed water in the drain pan at the time of heating or the like, the air on the secondary side of the heat exchanger can be prevented from leaking out to the suction side. Further, insects and the like can be prevented from coming into the drain pan.
  • the suction grille 15 and the filter 16 installed in the decorative panel 10 are detached, and the plug 63 closing the outlet 62 of each passage on the upper side of the air inlet 11 is detached.
  • the water drainage tube 92 serving as a flexible long body is firstly inserted into the interior of the drain pan 40 from the outlet 62b of the second passage 60b.
  • the second passage 60b through which the water drainage tube 92 is inserted only includes a straight part L, an obtuse bent part B, and a curved part C as shown in Figs. 3 to 4 .
  • the water drainage tube 92 can be readily and smoothly inserted into and drawn out from the drain pan 40. It should be noted that although a front end of the water drainage tube 92 is in the middle of the second passage 60b in Fig. 4 , the front end is actually inserted up to the bottom part (lower stage part) 40c of the drain pan 40.
  • the condensed water in the drain pan 40 can be drained by a principle of a siphon.
  • the front end of the water drainage tube 92 is inserted up to the bottom part (lower stage part) 40c serving as a lowest part of the drain pan 40.
  • the condensed water can be drained until there is almost no condensed water in the drain pan 40.
  • a hook 64 serving as a locking part for locking an accommodation container (not shown) such as a bucket receiving the condensed water discharged from the water drainage tube 92 is arranged in the vicinity of the outlet 62b of the second passage 60b used for discharging the condensed water.
  • the fiberscope 91 is inserted from an outlet 62a of the first passage 60a so as to inspect the interior of the drain pan 40.
  • the first passage 60a also only includes a straight part L, an obtuse bent part B, and a curved part C as well as the second passage 60b.
  • the fiberscope 91 can be readily and smoothly inserted into and drawn out from the drain pan 40.
  • an interior side opening of the first passage 60a through which the fiberscope 91 is inserted is arranged on the upper side of an interior side opening of the second passage 60b through which the water drainage tube 92 is inserted.
  • the bottom part or the like of the drain pan 40 can be observed from a high position. Therefore, more precise inspection can be performed.
  • the fiberscope 91 is once drawn out from the first passage 60a, and the water injection tube (not shown) serving as the flexible long body is inserted into the first passage 60a.
  • the cleaning water is injected from the water injection tube into the drain pan 40 so as to clean the lump of the grit, the dust, and the like, or the slime.
  • the cleaning water remaining in the bottom part of the drain pan 40 is discharged to the exterior of the air conditioner using the water drainage tube 92. In accordance with a degree of dirt, such a cleaning process is repeated for a plurality of times.
  • the water injection tube is drawn out from the first passage 60a, and the fiberscope 91 is inserted into the first passage 60a again so as to re-inspect the interior of the drain pan 40.
  • the drain pan 40 can be detached from the air conditioner A and cleaned.
  • the fiberscope 91 and the water drainage tube 92 are respectively drawn out from the first passage 60a and the second passage 60b, and then the outlets 62a, 62b of the passages 60a, 60b are closed by the plug 63.
  • a necessary amount of an antibacterial material 83 is supplied into an outlet 62c of the third passage 60c, the supply bar 93 serving as the flexible long body is inserted into the third passage 60c, and the antibacterial material 83 is charged so as to be pushed into the retaining part 82 arranged in the bottom part 40c of the drain pan 40.
  • the third passage 60c also only includes a straight part L, an obtuse bent part B, and a curved part C as well as the second passage 60b.
  • the supply bar 93 can be readily and smoothly inserted into and drawn out from the drain pan 40. It should be noted that instead of pushing in by the supply bar 93, the air can be blown in from the rear side of the antibacterial material.
  • the outlet 62c of the third passage 60c is closed by the plug 63, and the suction grille 15 and the filter 16 are attached to the air inlet 11 of the decorative panel 10, so that the maintenance tasks are completed.
  • a scale mark 90 indicating height from the inner bottom surface 44 of the drain pan 40 is provided on a side surface 43 of the drain pan 40 in which the outlet 62 is formed. Therefore, for example by inserting the water drainage tube 92 into the second passage 60b and suctioning the interior of the water drainage tube 92 once so as to make the condensed water in the vicinity of the front end of the tube pass through the high level passage part 61b, an amount of the condensed water in the drain pan 40 can be readily confirmed in the exterior of the drain pan 40. By watching that a water level is lowered in trial operation after installment, an action of the drain pump can be confirmed.
  • Fig. 9 is a major part illustrative view of a second embodiment of the air conditioner A of the present invention
  • Fig. 10 is a perspective illustrative view of various passages of the second embodiment.
  • the same elements or configurations as the first embodiment will be given the same reference signs as the first embodiment. For simplicity, description of the common elements and configurations will be omitted. The same is applied to the following third to fifth embodiments.
  • the second embodiment is different from the above first embodiment in terms that the second passage through which the water drainage tube is inserted is not provided.
  • a water drainage tube 192 for draining the condensed water in a drain pan 140 is arranged in and fixed to a groove 161 formed in the drain pan 140.
  • the water drainage tube 192 is not inserted into the interior of the drain pan from an exterior when necessary but the water drainage tube 192 is always arranged in the drain pan 140. Therefore, a configuration of the groove part formed in the drain pan 140 is different from the first embodiment (refer to Fig. 5 ).
  • a part of the groove part 41b constituting the second passage 60b is formed in the inclination base 45b.
  • a corresponding inclination base is not provided. Therefore, the water drainage tube 192 is arranged in a posture bent by substantially 90 degrees as shown in Fig. 9 .
  • a first passage 160a and a third passage 160c correspond to the passage through which the flexible long body is inserted in the present invention.
  • the first passage 160a is a passage through which the fiberscope for inspecting an interior of the drain pan 140 is inserted
  • the third passage 160c is a passage through which the supply bar serving as the antibacterial material supplying long body for supplying the antibacterial material into the drain pan 140 is inserted.
  • An opening 192a of an outlet side end of the water drainage tube 192 is normally closed by a cap, a clip, or the like (not shown), and the cap or the clip is detached at the time of the maintenance tasks.
  • the maintenance tasks are performed by following orders of water drainage, interior inspection, and antibacterial material supply described in the first embodiment.
  • a bottom surface or the like of the drain pan 142 can be cleaned.
  • Fig. 11 shows a modified example of the second embodiment.
  • a socket 170 serving as a connection tool is fixed to a side surface 140a of the drain pan 140.
  • the outlet side end 192a of the water drainage tube 192 arranged in and fixed to the drain pan 140 is connected to the socket 170.
  • An opening of the socket 170 is normally closed by a cap 171.
  • the cap 171 is detached and a tube 172 is connected to the socket 170.
  • the condensed water in the drain pan 140 is discharged via the water drainage tube 192 and the tube 172.
  • Fig. 12 is a major part illustrative view of a third embodiment of the air conditioner A of the present invention
  • Fig. 13 is a major part illustrative view of the third embodiment at the time of draining.
  • the third embodiment is different from the above first embodiment in terms that the second passage through which the water drainage tube is inserted is not provided.
  • a water drainage passage 292 for draining the condensed water in a drain pan 240 is formed in the drain pan 240.
  • One end of the water drainage passage 292 opens on a bottom surface 244 of the drain pan 240, and the other end opens on a side surface 243 of the drain pan 240.
  • a socket 270 serving as the connection tool is fixed to the opening portion on the side surface.
  • An opening of the socket 270 is normally closed by a cap 271.
  • the first passage through which the fiberscope for inspecting an interior of the drain pan 240 is inserted, and the third passage through which the supply bar serving as the antibacterial material supplying long body for supplying the antibacterial material into the drain pan 240 is inserted as well as the first embodiment are also provided.
  • Fig. 14 is a major part illustrative view of a fourth embodiment of the air conditioner A of the present invention at the time of draining
  • Fig. 15 is a perspective view showing a water drainage passage and a water drainage passage lid of the fourth embodiment.
  • the fourth embodiment is different from the above first embodiment in terms that the second passage through which the water drainage tube is inserted is not provided.
  • a water drainage passage 392 for draining the condensed water in a drain pan 340 is formed by a groove part 341 formed in the drain pan 340 and a lid body 342 covering the groove part 341.
  • the water drainage passage 392 is different from the second passage 60b in the first embodiment in terms that it has a bent part 392a bent by substantially 90 degrees in one part thereof.
  • One end of the water drainage passage 392 opens on a bottom part 340c of the drain pan 340, and the other end opens on a side surface 343 of the drain pan 340.
  • a socket 370 serving as the connection tool is fixed to the opening portion on the side surface.
  • An opening of the socket 370 is normally closed by a cap (not shown) (a similar cap to the cap 271 in Fig. 12 ).
  • the first passage through which the fiberscope for inspecting an interior of the drain pan 340 is inserted, and the third passage through which the supply bar serving as the antibacterial material supplying long body for supplying the antibacterial material into the drain pan 340 is inserted as well as the first embodiment are also provided.
  • Fig. 16 is a major part illustrative view of a fifth embodiment of the air conditioner A of the present invention at the time of draining
  • Fig. 17 is a perspective view showing a drainage hose of the fifth embodiment.
  • the fifth embodiment is different from the above first embodiment in terms that the second passage through which the water drainage tube is inserted is not provided.
  • a water drainage tube 492 for draining the condensed water in a drain pan 440 is fixed to the drain pan 440.
  • a vicinity part of an interior side end of the water drainage tube 492 is arranged in a groove part 461 formed in the drain pan 440, and an interior side part continuous to the vicinity part is arranged so as to be exposed in the drain pan 440.
  • the water drainage tube 492 extends to an exterior through a hole 446 formed in the drain pan 440.
  • the reference signs 480 denote locking parts protruding in an open edge 461a of the groove part 461 and facing to each other, the locking parts preventing the vicinity part of the interior side end of the water drainage tube 492 from being drawn out.
  • the water drainage tube 492 is not inserted into the interior of the drain pan from the exterior when necessary but the water drainage tube 492 is always arranged in the drain pan 440. Therefore, a configuration of the groove part formed in the drain pan 440 is different from the first embodiment (refer to Fig. 5 ).
  • An opening 492a of an outlet side end of the water drainage tube 492 is normally closed by a cap, a clip, or the like (not shown), and the cap or the clip is detached at the time of the maintenance tasks.
  • the first passage through which the fiberscope for inspecting an interior of the drain pan 440 is inserted, and the third passage through which the supply bar serving as the antibacterial material supplying long body for supplying the antibacterial material into the drain pan 440 is inserted as well as the first embodiment are also provided.
  • the first passage 60a through which the fiberscope 91 for inspecting the interior of the drain pan 40 is inserted, the second passage 60b through which the water drainage tube 92 for discharging the condensed water in the drain pan 40 to the exterior is inserted, and the third passage 60c through which the supply bar 93 serving as the antibacterial material supplying long body for supplying the antibacterial material into the drain pan 40 is inserted are separately provided.
  • one passage can serve as two or three of the passages.
  • one passage can serve as both a passage for fiberscope insertion and a passage for water drainage, or further serve as the passage for the fiberscope insertion, the passage for the water drainage, and a passage for antibacterial material supply. It should be noted that in a case where one passage serves as three kinds of passages, the maintenance tasks are readily performed when the retaining part of the antibacterial material in the first embodiment is not provided.
  • the outlet of the passage is arranged on the upper side of the air inlet of the decorative panel.
  • the outlet may be arranged on the upper side of the corner covers. In this case, only by detaching the corner covers, access to the outlet of the passage can be easily obtained. Thus, the fiberscope or the like can be readily inserted into the drain pan.
  • the passage is formed by the groove part formed in the drain pan and the lid body covering the groove part.
  • a groove part can be formed in the lid body, and the passage can be formed by the groove part and the drain pan.
  • the heat exchanger is arranged on the discharge side of the fan.
  • the present invention can be also applied to an air conditioner in which a heat exchanger is arranged on the suction side of a fan.
  • the present invention is applied to the ceiling-buried type air conditioner in which the inlet and the outlet for the air are provided in the decorative panel.
  • the present invention is not limited to such an air conditioner.
  • the present invention can be also applied to a type of air conditioner shown in Figs. 18 to 19 .
  • FIG. 18 In the air conditioner shown in Figs. 18 to 19 , only an air inlet 611 is provided in a decorative panel 610, and a suction grille 615 is installed in the air inlet 611.
  • a lower surface opening of a casing 601 accommodating a fan 620 and the decorative panel 610 are connected by a canvas duct 614.
  • a heat exchanger 630 is arranged on the discharge side of the fan 620, and a drain pan 640 receiving the condensed water from the heat exchanger 630 is provided on the lower side of the heat exchanger 630.
  • a drain pump 650 for discharging the condensed water stored in the drain pan 640 to an exterior of the air conditioner is arranged on the upper side of a bottom part of the drain pan 640.
  • the air passing through the heat exchanger 630 is fed to the air-conditioned room via a duct 618 connected to a side surface opening of the casing 601.
  • a passage 660 through which the flexible long body for maintaining the air conditioner is inserted from an exterior to the vicinity of a bottom part 640c of the drain pan 640 is provided in the drain pan 640.
  • the passage 660 only includes a straight part and a curved part.
  • An outlet of the passage 660 is normally closed by a plug 668.
  • an air inlet part of the decorative panel 610 is opened, and the plug 663 of the outlet of the passage 660 is detached.
  • a water drainage tube (not shown) is inserted from the outlet of the passage 660 to the bottom part 640c of the drain pan 640 so as to discharge the condensed water stored in the drain pan 640 to the exterior of the air conditioner.
  • a fiberscope 691 is inserted into the passage 660 so as to inspect a vicinity part of the bottom part 640c of the drain pan 640.
  • the cleaning water is injected into the drain pan 640 via the water injection tube so as to clean the vicinity part of the bottom part of the drain pan 640.
  • the antibacterial material is supplied into the drain pan 640 via the passage 660 if necessary, and then the outlet of the passage 660 is closed by the plug, and the air inlet part of the decorative panel 610 is returned to an original state.
  • a casing 701 accommodating a fan 720 and a heat exchanger 730 arranged on the discharge side of the fan 720 is suspended from a ceiling by suspending fittings (not shown).
  • An air inlet 711 for suctioning the air in the air-conditioned room is provided on a lower surface of the casing 701, and a suction grille 715 and a filter 716 are arranged in the air inlet 711.
  • Air outlets 712 are respectively provided on four side surfaces of the rectangular casing 701, and flaps 717 for adjusting the wind direction are arranged in the air outlets 712.
  • a drain pan 740 receiving the condensed water from the heat exchanger 730 is provided on the lower side of the heat exchanger 730.
  • a drain pump 750 for discharging the condensed water stored in the drain pan 740 to an exterior of the air conditioner is arranged on the upper side of a bottom part of the drain pan 740.
  • a passage 760 through which the flexible long body for maintaining the air conditioner is inserted from an exterior to the vicinity of a bottom part 740c of the drain pan 740 is provided in the drain pan 740.
  • the passage 760 only includes a straight part and a curved part.
  • An outlet of the passage 760 is normally closed by a plug 763.

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)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
EP10793974.6A 2009-06-30 2010-06-09 Climatiseur Withdrawn EP2450643A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009155541A JP4582246B1 (ja) 2009-06-30 2009-06-30 空気調和機
PCT/JP2010/059780 WO2011001804A1 (fr) 2009-06-30 2010-06-09 Climatiseur

Publications (2)

Publication Number Publication Date
EP2450643A1 true EP2450643A1 (fr) 2012-05-09
EP2450643A4 EP2450643A4 (fr) 2014-05-07

Family

ID=43365149

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10793974.6A Withdrawn EP2450643A4 (fr) 2009-06-30 2010-06-09 Climatiseur

Country Status (4)

Country Link
EP (1) EP2450643A4 (fr)
JP (1) JP4582246B1 (fr)
CN (1) CN102439373B (fr)
WO (1) WO2011001804A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014006580A1 (de) * 2014-05-03 2015-11-05 Erik Martini Temperatur anpassende Luftauslässe auf Wunsch des einzelnen Nutzers in Verbindung mit einem Lüftungs-/Klima-Zentralsystem
WO2020040561A1 (fr) * 2018-08-24 2020-02-27 한온시스템 주식회사 Dispositif de climatisation pour véhicule
EP3842703A4 (fr) * 2018-08-21 2022-03-30 Hitachi-Johnson Controls Air Conditioning, Inc. Unité intérieure pour climatiseur

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JP5260691B2 (ja) * 2011-02-17 2013-08-14 シャープ株式会社 空気調和機
JP6091066B2 (ja) * 2012-02-29 2017-03-08 日本電産サンキョー株式会社 ドレンポンプ
CN107850337A (zh) * 2015-07-08 2018-03-27 日立江森自控空调有限公司 空气调节机的室内机
JP6463496B2 (ja) * 2015-09-29 2019-02-06 三菱電機株式会社 室内機および空気調和機
JP6272446B1 (ja) * 2016-11-18 2018-01-31 三菱電機ビルテクノサービス株式会社 ドレンパン洗浄装置およびドレンパン洗浄方法
EP3784590B1 (fr) 2018-04-27 2023-05-10 Covi, Emanuela Ensemble soupape pour un récipient de boisson

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JP2007255840A (ja) * 2006-03-24 2007-10-04 Mitsubishi Electric Building Techno Service Co Ltd 空調機内部観察装置
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014006580A1 (de) * 2014-05-03 2015-11-05 Erik Martini Temperatur anpassende Luftauslässe auf Wunsch des einzelnen Nutzers in Verbindung mit einem Lüftungs-/Klima-Zentralsystem
EP3842703A4 (fr) * 2018-08-21 2022-03-30 Hitachi-Johnson Controls Air Conditioning, Inc. Unité intérieure pour climatiseur
WO2020040561A1 (fr) * 2018-08-24 2020-02-27 한온시스템 주식회사 Dispositif de climatisation pour véhicule

Also Published As

Publication number Publication date
JP4582246B1 (ja) 2010-11-17
WO2011001804A1 (fr) 2011-01-06
JP2011012850A (ja) 2011-01-20
CN102439373B (zh) 2014-07-23
EP2450643A4 (fr) 2014-05-07
CN102439373A (zh) 2012-05-02

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