EP2228609A1 - Unité intérieure pour climatiseur - Google Patents

Unité intérieure pour climatiseur Download PDF

Info

Publication number
EP2228609A1
EP2228609A1 EP08854768A EP08854768A EP2228609A1 EP 2228609 A1 EP2228609 A1 EP 2228609A1 EP 08854768 A EP08854768 A EP 08854768A EP 08854768 A EP08854768 A EP 08854768A EP 2228609 A1 EP2228609 A1 EP 2228609A1
Authority
EP
European Patent Office
Prior art keywords
air
indoor unit
conditioner indoor
drain pan
hole
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
EP08854768A
Other languages
German (de)
English (en)
Other versions
EP2228609B1 (fr
EP2228609A4 (fr
EP2228609B8 (fr
Inventor
Daisuke Tanaka
Satoshi Shinma
Yoshiyuki Takesako
Susumu Yamashita
Masahiro Tubono
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.)
Mitsubishi Heavy Industries Thermal Systems Ltd
Original Assignee
Mitsubishi Heavy 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP2228609A1 publication Critical patent/EP2228609A1/fr
Publication of EP2228609A4 publication Critical patent/EP2228609A4/fr
Publication of EP2228609B1 publication Critical patent/EP2228609B1/fr
Application granted granted Critical
Publication of EP2228609B8 publication Critical patent/EP2228609B8/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F24F1/0047—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
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • 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 an air-conditioner indoor unit, and in particular, to an air-conditioner indoor unit for use in a ceiling-mounted air conditioner.
  • Patent Citation 1 Japanese Unexamined Patent Application, Publication No. 2007-271174
  • the invention disclosed in the above Patent Citation has a problem in that a drain pan must be removed from the case main body of the air-conditioner indoor unit to check the contamination condition of the drain pan, which makes inspection work troublesome, thus taking a long time for the inspection work.
  • Another problem is that drainage accumulated in the drain pan falls when the drain pan is removed from the case main body, soiling the floor surface, a desktop, etc. located below (vertically below) the air-conditioner indoor unit.
  • the present invention is made in consideration of the above-described circumstances, and it is an object thereof to provide an air-conditioner indoor unit in which the contamination condition of a drain pan can be grasped easily and quickly without removing the drain pan from the case main body, thus allowing accurate determination of whether it is time to clean the drain pan and preventing drainage accumulated in the drain pan from falling below the air-conditioner indoor unit during inspection work and soiling the floor surface, a desktop, etc. located below the air-conditioner indoor unit.
  • An air-conditioner indoor unit is an air-conditioner indoor unit including, in a case main body embedded in a ceiling, an indoor heat exchanger, a drain pan, an air-blower driving motor, an air blower, and an air deflector, wherein the drain pan has a through-hole passing therethrough in a plate thickness direction, and a transparent member is fitted in the through-hole.
  • the grime (build-up) condition inside the drain pan can be grasped easily and quickly merely by looking at the grime adhering to the inner surface of the transparent member, thus allowing accurate determination of whether it is time to clean the drain pan. Since the contamination condition inside the drain pan can be grasped merely by looking at the grime adhering to the inner surface of the transparent member, the floor surface, a desktop, etc. located below (vertically below) the air-conditioner indoor unit can be prevented from being soiled by the drainage during inspection work.
  • a plate-like reflecting plate be provided directly above the through-hole and the transparent member and higher than the maximum water level of drainage in such a manner that the upper surface and the lower surface thereof are substantially parallel to a horizontal surface.
  • a columnar or prismatic reflecting member be provided directly above the through-hole and the transparent member and higher than the maximum water level of drainage in such a manner that both end faces are substantially parallel to a horizontal surface.
  • the reflecting member has a depth along the vertical direction (extends in the vertical direction), the inspector (worker) can perform inspection at a location (position) a little away (slightly away) from a location directly below (vertically below) the transparent member.
  • a circular truncated conical or truncated pyramidal reflecting member be provided directly above the through-hole and the transparent member and higher than the maximum water level of drainage in such a manner that a small-diameter-side end face is located at the bottom and a large-diameter-side end face is located at the top, and that the end faces are substantially parallel to a horizontal surface.
  • the reflecting member has a depth along the vertical direction (extends in the vertical direction) and expands in diameter toward the inner part, the inspector (worker) can perform inspection at a location directly below (vertically below) the transparent member and a location a little away (slightly away) from the location directly below.
  • quantifying means be provided on the lower surface of the reflecting plate or on a side surface of the reflecting member, for quantifying the grime condition.
  • the grime (build-up) condition inside the drain pan can be grasped quantitatively or unambiguously depending on how the quantifying means (for example, numerals) provided on the lower surface of the reflecting plate or on a side surface of the reflecting member is viewed, which can reduce differences in judgment that can be caused among inspectors (workers) who look into the drain pan through the transparent member.
  • the quantifying means for example, numerals
  • At least one light source that illuminates the lower surface of the reflecting plate or the side surface of the reflecting member be provided.
  • An air-conditioner indoor unit is an air-conditioner indoor unit including, in a case main body embedded in a ceiling, an indoor heat exchanger, a drain pan, a drain pump, an air-blower driving motor, an air blower, and an air deflector, wherein the drain pan has a through-hole passing therethrough in a plate thickness direction; a transparent member is fitted in the through-hole; the drain pump is disposed directly above the through-hole and the transparent member; and the side surface of an intake portion of the drain pump serves as a reflector.
  • the side surface of the intake portion of the drain pump can be used as a reflector, the need for a separate member, such as a reflecting plate or a reflecting member, can be eliminated, which can reduce the number of parts, thus reducing the cost of manufacture.
  • An air-conditioner indoor unit is an air-conditioner indoor unit including, in a case main body embedded in a ceiling, an indoor heat exchanger, a drain pan, an air-blower driving motor, an air blower, and an air deflector, wherein the drain pan has a through-hole passing therethrough in a plate thickness direction; a dam extending upward and whose upper end is located higher than the maximum water level of drainage is provided around the inner rim of the through-hole; and a plug member whose outer circumferential surface is in contact with the inner circumferential surface of the through-hole and/or the inner circumferential surface of the dam is detachably mounted inside the through-hole and the dam.
  • the grime (build-up) condition inside the drain pan can be grasped easily and quickly merely by removing the plug member, inserting a brush or the like toward the upper surface (bottom surface) of the drain pan through the through-hole, and looking at grime adhering to the brush, thus allowing accurate determination of whether it is time to clean the drain pan.
  • the drainage accumulated in the drain pan can be blocked by the dam, the floor surface, a desktop, etc. located below (vertically below) the air-conditioner indoor unit can be prevented from being soiled by the drainage during inspection work.
  • a hinge having a rotation axis that is substantially parallel to a horizontal direction be mounted on the top face of the plug member with a support member therebetween; the base end of a rod-like member be mounted to the hinge; the plug member have a through-hole at the center; and the through-hole accommodate a wire member of which one end is connected to the hinge and which rotates the distal end of the rod-like member upward by drawing the other end downward and which rotates the distal end of the rod-like member downward by pushing the other end upward.
  • the grime (build-up) condition inside the case main body can be grasped more easily and more quickly merely by removing the plug member from the drain pan in a state in which the distal end of the rod-like member is directed upward by drawing the other end of the wire member downward during inspection and looking at grime adhering to the distal end of the rod-like member, thus allowing more accurate determination of whether it is time to clean the drain pan.
  • a ceiling-mounted air conditioner is equipped with an air-conditioner indoor unit in which the contamination condition of a drain pan can be grasped easily and quickly without removing the drain pan from a case main body, thus allowing accurate determination of whether it is time to clean the drain pan and preventing drainage accumulated in the drain pan from falling below the air-conditioner indoor unit during inspection work and soiling the floor surface, a desktop, etc. located below the air-conditioner indoor unit.
  • the air-conditioner indoor unit offers the advantages of allowing the contamination condition of a drain pan to be grasped easily and quickly without removing the drain pan from a case main body, allowing accurate determination of whether it is time to clean the drain pan, and preventing drainage accumulated in the drain pan from falling below the air-conditioner indoor unit during inspection work and soiling the floor, a desktop, etc. located below the air-conditioner indoor unit.
  • FIG. 1 is a schematic configuration diagram of the air-conditioner indoor unit according to this embodiment; and Fig. 2 is an enlarged longitudinal sectional view of a relevant part in Fig. 1 .
  • An air-conditioner indoor unit 10 constitutes a ceiling-mounted air conditioner, together with an air-conditioner outdoor unit and a refrigerant pipe (not shown).
  • the air-conditioner outdoor unit includes a compressor for compressing a refrigerant, an outdoor heat exchanger for heat-exchange between the refrigerant and outdoor air, and an outdoor fan.
  • the refrigerant pipe joins the air-conditioner indoor unit 10 and the air-conditioner outdoor unit together to circulate the refrigerant between the air-conditioner indoor unit and the air-conditioner outdoor unit.
  • the air-conditioner indoor unit 10 includes, in a case main body 11 embedded in a ceiling (not shown), an indoor heat exchanger 12, a drain pan 13, an air-blower driving motor (not shown), an air blower 14, and an air deflector 15.
  • a ceiling panel (not shown) is mounted below the case main body 11. The ceiling panel has an intake port at the center and an exhaust port on the outer side thereof adjacent to the intake port.
  • the refrigerant from the outdoor unit circulates through the indoor heat exchanger 12, and the air blower 14 is driven (rotated) by the air-blower driving motor. Then, room air in the room is guided from the intake port to the air deflector 15 through an intake grill and a filter attached to the intake port and is sucked into the air blower 14, thus being propelled. The air is cooled or excessively heated into conditioned air in the process of circulating through the indoor heat exchanger 12 and is blown into the room through the exhaust port.
  • the drain pan 13 of the air-conditioner indoor unit 10 is provided with a through-hole 13b passing through the drain pool 13a in the plate thickness direction and having a circular shape in plan view, and a transparent member (transparent object) 19 having a circular shape in plan view is fitted in the through-hole 13b.
  • a reflecting plate 20 having a square shape in plan view (or a circular shape in plan view) is provided directly above (vertically above) the through-hole 13b and the transparent member 19 and higher than the maximum water level L of the drainage.
  • the reflecting plate 20 is a thin plate member made of, for example, white plastic (for example, polystyrene (PS)).
  • the surface 20a of the reflecting plate 20 can be visually recognized easily and clearly, and if the inner surface (upper surface) 19a of the transparent member 19 becomes dirty with the grime 21 built up thereon, as shown in the right half of Fig. 2 , the surface 20a of the reflecting plate 20 becomes hardly visible or becomes impossible to be visually recognized in accordance with the degree (level) of the grime 21.
  • the grime (build-up) condition inside the case main body 11 can be grasped easily and quickly merely by looking into the case main body 11 (more specifically, the inside of the drain pan 13) through the transparent member 19, thus allowing accurate determination of whether it is time to clean the drain pan 13. Since the contamination condition inside the case main body 11 can be grasped merely by looking into the case main body 11 through the transparent member 19, the floor surface, a desktop, etc. located below (vertically below) the air-conditioner indoor unit 10 can be prevented from being soiled by the drainage during inspection work.
  • FIG. 3 A second embodiment of the air-conditioner indoor unit according to the present invention will be described with reference to Fig. 3 .
  • An air-conditioner indoor unit 30 according to this embodiment differs from that of the above-described first embodiment in that it has a reflecting plate 31 instead of the reflecting plate 20. Since the other components are the same as those of the first embodiment described above, descriptions of those components will be omitted here.
  • numerals 0, 1, 2, and 3 are drawn on a surface (lower surface) 31a of the reflecting plate 31, and the numerals drawn on the surface 31a of the reflecting plate 31 become hardly visible or become impossible to be visually recognized in the order 3, 2, 1, and 0 in accordance with the degree of the grime 21.
  • the grime (build-up) condition inside the case main body 11 can be grasped quantitatively or unambiguously merely by looking into the case main body 11 (more specifically, the inside of the drain pan 13) through the transparent member 19, which can reduce differences in judgment that can be caused among inspectors (workers) who look into the case main body 11 through the transparent member 19. Since the other operational advantages are the same as those of the first embodiment described above, descriptions thereof will be omitted here.
  • FIG. 4 A third embodiment of the air-conditioner indoor unit according to the present invention will be described with reference to Fig. 4 .
  • An air-conditioner indoor unit 40 according to this embodiment differs from that of the above-described embodiments in that it has a reflecting member 41 instead of the reflecting plate 20 or 31. Since the other components are the same as those of the above-described embodiments, descriptions of those components will be omitted here.
  • the reflecting member 41 is a solid (or hollow) columnar (or prismatic) member made of, for example, white plastic (for example, polystyrene (PS)).
  • white plastic for example, polystyrene (PS)
  • the air-conditioner indoor unit 40 With the air-conditioner indoor unit 40 according to this embodiment, light that has entered (has been introduced into) the inside of the case main body 11 (more specifically, the inside of the drain pan 13) through the transparent member 19 reaches the outer peripheral surface (outer surface: side surface) 41a of the reflecting member 41, is reflected by the reflecting member 41 toward the transparent member 19, and thereafter exits (emerges) outside the case main body 11 (more specifically, outside the drain pan 13) through the transparent member 19. At that time, if the inner surface (upper surface) 19a of the transparent member 19 is clean without grime (for example, an agar-like substance (slime) metabolized by pseudomonas) 21, as shown in the left half of Fig.
  • grime for example, an agar-like substance (slime) metabolized by pseudomonas
  • the outer peripheral surface 41a of the reflecting member 41 can be visually recognized easily and clearly, and if the inner surface (upper surface) 19a of the transparent member 19 becomes dirty with the grime 21 built up thereon, as shown in the right half of Fig. 4 , the outer peripheral surface 41a of the reflecting member 41 becomes hardly visible or becomes impossible to be visually recognized in accordance with the degree (level) of the grime 21.
  • the grime (build-up) condition inside the case main body 11 can be grasped easily and quickly merely by looking into the case main body 11 (more specifically, the inside of the drain pan 13) through the transparent member 19, thus allowing accurate determination of whether it is time to clean the drain pan 13. Since the contamination condition inside the case main body 11 can be grasped merely by looking into the case main body 11 through the transparent member 19, the floor surface, a desktop, etc. located below (vertically below) the air-conditioner indoor unit 10 can be prevented from being soiled by the drainage during inspection work. Furthermore, as shown in Fig.
  • the inspector can perform inspection at a location (position) a little away (slightly away) from a location directly below (vertically below) the transparent member 19.
  • FIG. 5 A fourth embodiment of the air-conditioner indoor unit according to the present invention will be described with reference to Fig. 5 .
  • An air-conditioner indoor unit 50 according to this embodiment differs from that of the above-described third embodiment in that it has a reflecting member 51 instead of the reflecting member 41. Since the other components are the same as those of the third embodiment described above, descriptions of those components will be omitted here.
  • numerals 0, 1, 2, and 3 are drawn on the outer peripheral surface (outer surface: side surface) 51a of the reflecting member 51 from the inner part toward the front side (from the top toward the bottom), and the numerals drawn on the outer peripheral surface 51a of the reflecting member 51 become hardly visible or become impossible to be visually recognized in the order 0, 1, 2, and 3 in accordance with the degree of the grime 21.
  • the grime (build-up) condition inside the case main body 11 can be grasped quantitatively or unambiguously merely by looking into the case main body 11 (more specifically, the inside of the drain pan 13) through the transparent member 19, which can reduce differences in judgment that can be caused among inspectors (workers) who look into the case main body 11 through the transparent member 19. Since the other operational advantages are the same as those of the third embodiment described above, descriptions thereof will be omitted here.
  • FIG. 6 A fifth embodiment of the air-conditioner indoor unit according to the present invention will be described with reference to Fig. 6 .
  • An air-conditioner indoor unit 60 according to this embodiment differs from that of the above-described first and second embodiments in that it has a reflecting member 61 instead of the reflecting plate 20 or 31. Since the other components are the same as those of the first and second embodiments described above, descriptions of those components will be omitted here.
  • the reflecting member 61 is a solid (or hollow) circular truncated conical (or truncated pyramidal) member made of, for example, white plastic (for example, polystyrene (PS)) and is disposed such that a small-diameter end face is located at the bottom and a large-diameter end face is located at the top (such that the outer peripheral surface (outer surface: side surface) 61a expands from the bottom toward the top).
  • white plastic for example, polystyrene (PS)
  • the air-conditioner indoor unit 60 With the air-conditioner indoor unit 60 according to this embodiment, light that has entered (has been introduced into) the inside of the case main body 11 (more specifically, the inside of the drain pan 13) through the transparent member 19 reaches the outer peripheral surface (outer surface: side surface) 61a of the reflecting member 61, is reflected by the reflecting member 61 toward the transparent member 19, and thereafter exits (emerges) outside the case main body 11 (more specifically, outside the drain pan 13) through the transparent member 19. At that time, if the inner surface (upper surface) 19a of the transparent member 19 is clean without any grime (for example, an agar-like substance (slime) metabolized by pseudomonas) 21, as shown in the left half of Fig.
  • grime for example, an agar-like substance (slime) metabolized by pseudomonas
  • the outer peripheral surface 61a of the reflecting member 61 can be visually recognized easily and clearly, and if the inner surface (upper surface) 19a of the transparent member 19 becomes dirty with the grime 21 built up thereon, as shown in the right half of Fig. 6 , the outer peripheral surface 61a of the reflecting member 61 becomes hardly visible or becomes impossible to be visually recognized in accordance with the degree (level) of the grime 21.
  • the grime (build-up) condition inside the case main body 11 can be grasped easily and quickly merely by looking into the case main body 11 (more specifically, the inside of the drain pan 13) through the transparent member 19, thus allowing accurate determination of whether it is time to clean the drain pan 13. Since the contamination condition inside the case main body 11 can be grasped merely by looking into the case main body 11 through the transparent member 19, the floor surface, a desktop, etc. located below (vertically below) the air-conditioner indoor unit 60 can be prevented from being soiled by the drainage during inspection work. Furthermore, as shown in Fig.
  • the inspector can perform inspection at a location directly below (vertically below) the transparent member 19 and at a location a little away (slightly away) from the location directly below.
  • FIG. 7 A sixth embodiment of the air-conditioner indoor unit according to the present invention will be described with reference to Fig. 7 .
  • An air-conditioner indoor unit 70 according to this embodiment differs from that of the above-described fifth embodiment in that it has a reflecting member 71 instead of the reflecting member 61. Since the other components are the same as those of the fifth embodiment described above, descriptions of those components will be omitted here.
  • numerals 0, 1, 2, and 3 are drawn on the outer peripheral surface (outer surface: side surface) 71a of the reflecting member 71 from the inner part toward the front side (from the top toward the bottom), and the numerals drawn on the outer peripheral surface 71a of the reflecting member 71 become hardly visible or become impossible to be visually recognized in the order 0, 1, 2, and 3 in accordance with the degree of the grime 21.
  • the grime (build-up) condition inside the case main body 11 can be grasped quantitatively or unambiguously merely by looking into the case main body 11 (more specifically, the inside of the drain pan 13) through the transparent member 19, which can reduce differences in judgment that can be caused among inspectors (workers) who look into the case main body 11 through the transparent member 19. Since the other operational advantages are the same as those of the fifth embodiment described above, descriptions thereof will be omitted here.
  • FIG. 8 A seventh embodiment of the air-conditioner indoor unit according to the present invention will be described with reference to Fig. 8 .
  • An air-conditioner indoor unit 80 according to this embodiment differs from that of the above-described embodiments in that it has at least one light source 81 that brightly illuminates (radiates light of constant intensity onto) the surfaces (lower surfaces) 20a and 31a of the above-described reflecting plates 20 and 31 or the outer peripheral surfaces (outer surfaces: side surfaces) 41a, 51a, 61a, and 71a of the reflecting members 41, 51, 61, and 71. Since the other components are the same as those of the embodiments described above, descriptions of those components will be omitted here.
  • Fig. 8 shows a concrete example equipped with two light sources 81 that brightly illuminate the surface 20a of the reflecting plate 20 described in the first embodiment.
  • Examples of the light source 81 include a light-emitting diode (LED) and a miniature bulb.
  • LED light-emitting diode
  • the surfaces (lower surfaces) 20a and 31a of the reflecting plates 20 and 31 or the outer peripheral surfaces (outer surfaces: side surfaces) 41a, 51a, 61a, and 71a of the reflecting members 41, 51, 61, and 71 are brightly illuminated by the light source 81, the grime (build-up) condition inside the case main body 11 can be grasped easily and quickly merely by looking into the case main body 11 (more specifically, the inside of the drain pan 13) through the transparent member 19 irrespective of light that enters (is introduced into) the inside of the case main body 11 (more specifically, the inside of the drain pan 13) through the transparent member 19 (irrespective of the brightness (illuminance) in the room), that is, even if it is dark in the room, thus allowing accurate determination of whether it is time to clean the drain pan 13. Since the other operational advantages are the same as those of the embodiments described above, descriptions thereof will be omitted here.
  • the drain pan 13 of the air-conditioner indoor unit 90 is provided with the through-hole 13b passing through the drain pan 13 or the drain pool 13a in a plate thickness direction and having a circular shape in plan view, and a dam 91 extending upward and whose upper end is located higher than the maximum water level L of the drainage is provided around a rim inside (at the upper side of) the through-hole 13b.
  • a plug member for example, a rubber plug
  • a plug member 92 whose outer circumferential surface 92a is in contact (or tight contact) with the inner circumferential surface of the through-hole 13b and/or the inner circumferential surface of the dam 91 is detachably mounted inside the through-hole 13b and the dam 91.
  • a hinge 93 having a rotation axis that is substantially parallel to the horizontal direction is mounted on the top face of the plug member 92 with a support member 94 therebetween.
  • the base end of a rod-like member 95 that is circular in cross section is mounted to the hinge 93.
  • the plug member 92 has a through-hole (not shown) at the center. The through-hole accommodates a wire member 96 one end of which is connected to the hinge 93 and which rotates the distal end of the rod-like member 95 upward by drawing the other end downward and which rotates the distal end of the rod-like member 95 downward by pushing the other end upward.
  • the rod-like member 95 is set at a length so that the distal end of the rod-like member 95 is located a little higher than the upper surface (bottom surface) of the drain pool 13a or comes into contact with the upper surface (bottom surface) of the drain pool 13a in the state shown in Fig. 9 , that is, in a state in which the wire member 96 is pushed up to the highest position.
  • the grime (build-up) condition inside the case main body 11 can be grasped easily and quickly merely by removing the plug member 92 from the drain pan 13 in a state in which the distal end of the rod-like member 95 is directed upward by drawing the other end of the wire member 96 downward during inspection and looking at the grime 21 adhering to the distal end of the rod-like member 95, thus allowing accurate determination of whether it is time to clean the drain pan 13.
  • the drainage accumulated in the drain pan 13 or the drain pool 13a can be blocked by the dam 91, the floor surface, a desktop, etc. located below (vertically below) the air-conditioner indoor unit 90 can be prevented from being soiled by the drainage during inspection work.
  • the drain pump 16 may be disposed directly above (vertically above) the through-hole 13b and the transparent member 19, and a white-colored intake portion 16a of the drain pump 16 (see Fig. 1 ) may be used instead of the reflecting plate 20 or 31 or the reflecting member 41, 51, 61, or 71 described above.
  • the quantifying means described in the second, fourth, and sixth embodiments is not limited to numerals but may be anything that has the same function, such as symbols, patterns, gradation, or colors.

Landscapes

  • 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 Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
EP08854768.2A 2007-11-27 2008-10-02 Unité intérieure pour climatiseur Active EP2228609B8 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007306049A JP5463000B2 (ja) 2007-11-27 2007-11-27 空調用室内ユニット
PCT/JP2008/067956 WO2009069380A1 (fr) 2007-11-27 2008-10-02 Unité intérieure pour climatiseur

Publications (4)

Publication Number Publication Date
EP2228609A1 true EP2228609A1 (fr) 2010-09-15
EP2228609A4 EP2228609A4 (fr) 2015-06-24
EP2228609B1 EP2228609B1 (fr) 2017-11-22
EP2228609B8 EP2228609B8 (fr) 2018-01-03

Family

ID=40678285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08854768.2A Active EP2228609B8 (fr) 2007-11-27 2008-10-02 Unité intérieure pour climatiseur

Country Status (3)

Country Link
EP (1) EP2228609B8 (fr)
JP (1) JP5463000B2 (fr)
WO (1) WO2009069380A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2600075A3 (fr) * 2011-12-01 2017-03-15 Carrier Corporation Pièces moulées et procédés de fabrication

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101990747B (zh) 2008-03-10 2015-04-01 皇家飞利浦电子股份有限公司 用于使用液体透镜在照明系统中进行通信的方法和设备
JP5868687B2 (ja) * 2011-12-08 2016-02-24 三菱重工業株式会社 空調用室内ユニット
JP5840021B2 (ja) * 2012-02-16 2016-01-06 三菱電機株式会社 空気調和機の室内機
JP6188994B1 (ja) * 2016-03-03 2017-08-30 三菱電機株式会社 空気調和機
EP3385635B1 (fr) * 2016-03-03 2020-05-06 Mitsubishi Electric Corporation Climatiseur
AU2021436028A1 (en) * 2021-03-23 2023-07-27 Mitsubishi Electric Corporation Inspection window for drain pan, and air conditioner
WO2024084586A1 (fr) * 2022-10-18 2024-04-25 三菱電機株式会社 Système de climatisation et dispositif de climatisation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000274877A (ja) * 1999-03-26 2000-10-06 Sanyo Electric Co Ltd 空気調和機
US20030037561A1 (en) * 2001-08-22 2003-02-27 Chaves Manuel J. Biased condensation trap
JP2005140452A (ja) * 2003-11-07 2005-06-02 Daikin Ind Ltd 空気調和装置
JP2007024454A (ja) * 2005-07-21 2007-02-01 Mitsubishi Electric Corp 空気調和機
JP2007178097A (ja) * 2005-12-28 2007-07-12 Hitachi Ltd 空気調和機

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63181944U (fr) * 1987-05-15 1988-11-24
JPH08122263A (ja) * 1994-10-19 1996-05-17 Hirata Kyogyo Kumiai 水槽内壁汚れ検出方法及び装置
JP2874604B2 (ja) * 1995-08-11 1999-03-24 ダイキン工業株式会社 空気調和装置のドレン排水確認構造
JPH10220802A (ja) * 1997-02-04 1998-08-21 Matsushita Refrig Co Ltd 空気調和機
JP3726018B2 (ja) * 2000-12-18 2005-12-14 株式会社三協 プール水の透明度測定キット
JP2003149149A (ja) * 2001-11-16 2003-05-21 Idemitsu Kosan Co Ltd 携帯型液体汚れ測定器、携帯型液体中分散物濃度測定器及びその使用方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000274877A (ja) * 1999-03-26 2000-10-06 Sanyo Electric Co Ltd 空気調和機
US20030037561A1 (en) * 2001-08-22 2003-02-27 Chaves Manuel J. Biased condensation trap
JP2005140452A (ja) * 2003-11-07 2005-06-02 Daikin Ind Ltd 空気調和装置
JP2007024454A (ja) * 2005-07-21 2007-02-01 Mitsubishi Electric Corp 空気調和機
JP2007178097A (ja) * 2005-12-28 2007-07-12 Hitachi Ltd 空気調和機

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2009069380A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2600075A3 (fr) * 2011-12-01 2017-03-15 Carrier Corporation Pièces moulées et procédés de fabrication

Also Published As

Publication number Publication date
EP2228609B1 (fr) 2017-11-22
JP2009127983A (ja) 2009-06-11
EP2228609A4 (fr) 2015-06-24
JP5463000B2 (ja) 2014-04-02
EP2228609B8 (fr) 2018-01-03
WO2009069380A1 (fr) 2009-06-04

Similar Documents

Publication Publication Date Title
EP2228609B1 (fr) Unité intérieure pour climatiseur
EP1788317A3 (fr) Conditionneur d'air
ATE424535T1 (de) Klimaanlage
EP1921390A3 (fr) Climatiseur
EP1804004A3 (fr) Climatiseur pour installation au plafond
AU2004312575A1 (en) Built-in illuminator
EP1813877A3 (fr) Unité intérieure d'un climatiseur
JP2007178097A (ja) 空気調和機
JP5868687B2 (ja) 空調用室内ユニット
KR101447755B1 (ko) 공기 조화기의 실내기
WO2006098436A1 (fr) Unite d’environnement interieur pour climatiseur
JP4721736B2 (ja) 天井埋込型空気調和装置
JP2005283057A (ja) ドレン排水装置付き空気調和機
JP4983973B2 (ja) 空調システム
JP4888406B2 (ja) 空気調和装置の室内ユニット
JP4656157B2 (ja) 空調システム
KR101327909B1 (ko) 공기조화기
CN212913072U (zh) 用于吸尘器的地刷及其吸尘器
JP2008309449A (ja) 空調機のドレン配管汚れ検出装置
JP2017009241A (ja) 空気調和機の室内機
EP2009364A1 (fr) Appareil de conditionnement d'air
JP2004271073A (ja) 発光ユニットと発光ユニットを使用した空調機器
CN217978949U (zh) 一种侧吸式油烟机
CN116358032A (zh) 一种接水盘组件及天花机
JP4878163B2 (ja) 空気調和機の室内機

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20100527

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: F24F 13/22 20060101AFI20150130BHEP

RA4 Supplementary search report drawn up and despatched (corrected)

Effective date: 20150527

RIC1 Information provided on ipc code assigned before grant

Ipc: F24F 13/22 20060101AFI20150520BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20170426

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 948783

Country of ref document: AT

Kind code of ref document: T

Effective date: 20171215

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602008053101

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20171122

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 948783

Country of ref document: AT

Kind code of ref document: T

Effective date: 20171122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180222

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180222

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180223

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602008053101

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20180823

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20181031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181002

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181031

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181031

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181031

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181002

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181002

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20081002

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180322

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602008053101

Country of ref document: DE

Representative=s name: CBDL PATENTANWAELTE GBR, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230831

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230830

Year of fee payment: 16