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WO2002081974A1 - Appareil de climatisation - Google Patents

Appareil de climatisation Download PDF

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Publication number
WO2002081974A1
WO2002081974A1 PCT/JP2002/002224 JP0202224W WO02081974A1 WO 2002081974 A1 WO2002081974 A1 WO 2002081974A1 JP 0202224 W JP0202224 W JP 0202224W WO 02081974 A1 WO02081974 A1 WO 02081974A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
air
casing
centrifugal blower
outlets
Prior art date
Application number
PCT/JP2002/002224
Other languages
English (en)
Japanese (ja)
Inventor
Tsunehisa Sanagi
Masahito Higashida
Makio Takeuchi
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.
Priority to AU2002236276A priority Critical patent/AU2002236276B2/en
Priority to EP02702856A priority patent/EP1382917A4/fr
Publication of WO2002081974A1 publication Critical patent/WO2002081974A1/fr

Links

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
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0022—Centrifugal or radial fans
    • 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
    • F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
    • 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
    • F24F1/0041—Indoor units, e.g. fan coil units characterised by exhaustion of inside air from the room
    • 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
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—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
    • F24F13/02—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

Definitions

  • the present invention relates to an air conditioner, particularly to an air conditioner buried in a ceiling.
  • the air conditioner has an outdoor unit having a compressor, a fan, a heat exchanger, and the like and installed outdoors, and an indoor unit having a fan and a heat exchanger.
  • outdoor units wall-mounted indoor units and ceiling-mounted indoor units are provided.
  • the ceiling-embedded indoor unit mainly includes a casing having a suction port and an outlet on the lower surface, a centrifugal blower as a fan disposed inside the casing, and a section between the centrifugal blower and the outlet. And a heat exchanger arranged.
  • the air in the room is taken into the casing from the suction port by the centrifugal blower, and the taken-in air is blown laterally. Then, the air sent from the centrifugal blower is heat-exchanged in a heat exchanger arranged so as to surround the centrifugal blower, and then supplied into the room from the outlet.
  • Ventilation from the air conditioner outlet may be uneven due to the shape of the internal ventilation section.
  • the size of the casing is limited because it is installed above the ceiling, and the centrifugal blower and heat exchanger are arranged in the limited casing space. This makes it difficult to prevent non-uniformity. If the air flow is not uniform, ventilation noise will be generated from parts with a high air volume, and cooling and heating performance will be reduced.
  • the size of the heat exchanger is limited in the indoor unit of the ceiling-mounted type, so that the heat exchange efficiency between the heat exchanger and air in the limited space is as small as possible. Need to be improved.
  • An object of the present invention is to achieve uniform air velocity distribution at an indoor unit outlet in an air conditioner having a centrifugal blower. Another object is to improve the heat exchange efficiency without increasing the size of the indoor unit.
  • the air conditioner according to claim 1 includes a casing, a centrifugal blower, and a heat exchanger.
  • the casing has a suction port for sucking air into the inside and a plurality of air outlets for blowing air to the outside.
  • the centrifugal blower is located inside the casing.
  • the heat exchanger is provided inside the casing so as to surround the centrifugal blower. In the heat exchanger, among the multiple air passages from the centrifugal blower to the multiple outlets via the heat exchanger, the air passage from the centrifugal blower to the air outlet facing the wind direction from the centrifugal blower is compared with other air passages. It is arranged to be narrow.
  • the centrifugal blower when the centrifugal blower is driven, air is sucked into the casing from the inlet, and air is blown out from the plurality of outlets.
  • the air passage formed between the centrifugal blower and the plurality of outlets depends on the shape of the casing and the position of the outlets, and the mutual positional relationship between the centrifugal blower, the heat exchanger, and the outlets. Each has a different resistance. For this reason, the wind speed of the air blown out from each of the plurality of outlets is different, and in some cases, a ventilation sound may be generated, and cooling and heating performance may be reduced.
  • the airflow from the outlet facing the wind direction from the centrifugal blower is larger than that from the outlet not facing the wind direction from the centrifugal blower.
  • the heat exchanger is arranged such that, among the plurality of air passages, the air passage leading to the air outlet facing the wind direction from the centrifugal blower is narrower than the other air passages. I have. For this reason, the resistance of the air passage is increased, the flow velocity of the air is suppressed, and the distribution of the wind speed blown out from the plurality of outlets can be made uniform. As a result, it is possible to suppress the ventilation noise and the deterioration of the cooling and heating performance.
  • the air conditioner according to claim 2 is the air conditioner according to claim 1, wherein the casing has a rectangular shape.
  • the heat exchanger has first, second, and third proximity portions that are closer to the side wall of the casing compared to both sides thereof, respectively, in reverse order with respect to the rotation direction of the centrifugal blower.
  • the length of the first region between the first proximity and the second proximity is: The length is substantially the same as the length of the second region between the second proximity portion and the third proximity portion.
  • the flow rate of the air blown out from the plurality of outlets is uniform, and the flow rates of the air passing through the first and second regions are substantially equal.
  • the heat exchange efficiency is substantially the same. As a result, the heat exchange efficiency in each air passage is made uniform, the cooling and heating efficiency is improved, and the temperature distribution of air from each outlet is made uniform.
  • An air conditioner includes a casing, a centrifugal blower, and a heat exchanger.
  • the casing is rectangular and has a suction port for sucking air therein and a plurality of outlets for blowing air to the outside.
  • the centrifugal blower is located inside the casing.
  • the heat exchanger is installed inside the casing so as to surround the centrifugal blower. ⁇ Also, the heat exchanger has the first, second and third adjacent parts that are closer to the casing compared to both sides. In the reverse order to the rotation direction.
  • the first and third proximate portions of the heat exchanger are located near an axis that passes through the center of the centrifugal blower and is orthogonal to the opposing first and second side walls of the casing.
  • the second proximity part of the heat exchanger is arranged so as to be shifted to the first proximity part side of the heat exchanger with respect to an axis passing through the center of the centrifugal blower and orthogonal to the third and fourth side walls facing the casing.
  • the plurality of outlets are provided on each of the first and second side walls of the casing so as to sandwich the first proximity portion and the third proximity portion with the first proximity portion therebetween. And third and fourth outlets.
  • the centrifugal blower when the centrifugal blower is driven, air is sucked into the casing from the suction port, and air is blown out from four outlets.
  • the air passage formed between the centrifugal blower and the multiple outlets depends on the shape of the casing and the positions of the outlets, and the mutual positional relationship between the centrifugal blower, the heat exchanger, and the outlets. Each has a different resistance. For this reason, the wind speed of the air blown out from each of the plurality of outlets is different, and in some cases, a ventilation noise may be generated, and cooling and heating performance may be reduced.
  • the first outlet and the second outlet are arranged on the first side wall of the casing so as to sandwich the first adjacent portion. Therefore, if the downstream side in the rotation direction of the centrifugal blower is the first outlet and the upstream side is the second outlet, the wind direction of the centrifugal blower is opposite to the second outlet, so that the air volume increases, The air volume for one outlet is smaller than that for the second outlet. This is the same for the third and fourth outlets.
  • the heat exchanger is arranged at an angle to the axis passing through the center of the centrifugal blower and orthogonal to the side wall of the casing to adjust the resistance of the air passage from the centrifugal blower to the outlet. In this way, the air volume from each outlet is made uniform.
  • an air passage formed between the first proximity portion and the second proximity portion is moved between the third proximity portion and the second proximity portion. It is narrower than the air passage formed between them. Since the narrowed air passage creates an air resistance in the flow of air blown out of the centrifugal blower, the flow rate of air blown out of the second outlet through the first and second adjacent portions is limited to other air passages. Therefore, the distribution of wind speeds blown out from a plurality of outlets can be made uniform. Therefore, it is possible to suppress the ventilation noise and the deterioration of the cooling and heating performance.
  • the air conditioner according to claim 4 is the air conditioner according to claim 3, wherein a length of the first region between the first proximity portion and the second proximity portion of the heat exchanger is The length of the second region between the second proximity portion and the third proximity portion is substantially the same.
  • the heat exchange efficiency in each air passage is substantially the same. Thereby, the heat exchange efficiency in each air passage is made uniform, the cooling and heating efficiency is improved, and the temperature distribution of the air from each outlet is made uniform.
  • the air conditioner according to claim 5 is the air conditioner according to claim 2 or 4, wherein the heat exchanger has a bent portion that is bent in an inner direction of the casing in the first region. I have. Since the position of the second proximity portion is biased toward the first proximity portion, it is necessary to bend the heat exchangers in the first and second regions to make the lengths equal. Here, the heat exchanger in the first region is bent inward of the casing. Thereby, the lengths of the heat exchangers are made equal without changing the size of the casing, and the configuration is simplified.
  • the air conditioner according to claim 6 is described in any one of claims 1 to 5.
  • the heat exchanger includes a plurality of heat exchanger bodies and a connecting portion that connects the plurality of heat exchanger bodies.
  • Bending the heat exchanger causes distortion in the internal structure of the heat exchanger. For this reason, there is a possibility that a defect may occur due to bending of the heat exchanger. If there are many bends, the number of bends increases and the frequency of failures increases.
  • the number of indoor unit heat exchangers is two or more, the number of bending operations per unit can be reduced. As a result, the frequency of failure of the heat exchanger can be suppressed.
  • An air conditioner includes a casing, a centrifugal blower, a heat exchanger, and a refrigerant supply unit.
  • the casing has a suction port for sucking air into the inside, and a plurality of outlets for blowing air to the outside, each of which is arranged in a rectangular shape.
  • a centrifugal blower is located inside the casing.
  • the heat exchanger is provided inside the casing so as to surround the centrifugal blower, and is arranged in a rectangular shape inside the plurality of outlets.
  • the refrigerant supply unit is provided at a corner of the caging and supplies the refrigerant to the heat exchanger.
  • the heat exchanger has an extension on the downstream side in the rotation direction of the centrifugal blower with respect to the refrigerant supply unit.
  • the air passage toward the outlet is narrowed in the vicinity of the refrigerant supply unit.Therefore, the air flow increases downstream of the centrifugal blower in the rotation direction, and the air flow is disturbed. Occurs. For this reason, the air blown from the outlet near the refrigerant supply unit is blown out without sufficient air conditioning.
  • an extension portion is provided in the heat exchanger on the downstream side in the rotation direction of the centrifugal blower with respect to the refrigerant supply portion among the plurality of air passages.
  • the air conditioner according to claim 8 is the air conditioner according to claim 7, wherein the extending portion is a bent portion that is bent in an inner direction of the casing.
  • the extending portion of the heat exchanger on the downstream side in the rotation direction of the centrifugal blower with respect to the refrigerant supply portion is a bent portion bent in the inner direction of the casing. Therefore, the length of the heat exchanger can be extended without changing the size of the casing.
  • FIG. 1 is an external perspective view of the indoor unit of the air conditioner according to the first and second embodiments.
  • FIG. 2 is a vertical sectional view of the indoor unit of the air conditioner according to the first embodiment. .
  • FIG. 3 is a horizontal sectional view of the indoor unit of the air conditioner according to the first embodiment.
  • FIG. 4 is a horizontal sectional view of the indoor unit of the air conditioner according to the second embodiment.
  • FIG. 5 is a horizontal sectional view of the indoor unit of the air conditioner according to the third embodiment. (Best mode for carrying out the invention)
  • FIG. 1 is an external perspective view of the indoor unit 1 of the air conditioner according to the first embodiment of the present invention
  • FIG. 2 is a vertical sectional view of the indoor unit in a plane including a centrifugal blower
  • FIG. 3 is a horizontal sectional view thereof. Shown.
  • the indoor unit 1 is of a ceiling embedded type and has a casing 11 embedded in the ceiling. Also, inside the casing 11, an evening fan (centrifugal blower) 40 and a heat exchanger 30 are provided.
  • the indoor unit 1 takes in the air in the installed room, performs air conditioning, and supplies the air after the heat exchange to the room.
  • the casing 11 is a case that holds the members of the indoor unit 1 therein.
  • the casing 11 has a rectangular parallelepiped outer shape, and has a bottom plate 12 at the bottom thereof.
  • the outlet 20 is for air conditioned by the indoor unit 1
  • the intake port 21 is a vent port for taking in air from the room into the indoor unit 1.
  • the outlet 20 is provided on one of the pair of long sides of the casing 11 with a first outlet 20a provided on the downstream side in the rotation direction of the turbo fan 40 from the center and the upstream side in the rotation direction.
  • a third outlet provided at a position facing the second outlet 20b on the other side of the long side on the downstream side in the rotational direction from the center on the other side of the long side.
  • a fourth outlet 20d provided at a position facing the first outlet 20a on the upstream side in the rotation direction.
  • the turbo fan 40 is located almost at the center of the casing 11.
  • the turbo fan 40 has a number of blades on its outer periphery, and rotates in the direction of arrow R in FIG. 3 to push out the air inside the turbo fan 40 in the direction of rotation, thereby causing the inside of the indoor unit 1 to rotate. Creates a flow of air.
  • the heat exchanger 30 is a member that exchanges heat with the passing air.
  • the heat exchanger 30 is formed in a substantially rhombic shape so as to surround the turbo fan 40, and the first and second heat exchangers 30 are closer to the inner wall of the casing 11 than to the other portions on both sides.
  • a third proximity portion 50a, 50b, 50c is located near the axis 14 which passes through the center of the evening fan 40 and is orthogonal to the long side of the casing 11 and has the first outlet 20a It is sandwiched between the second outlet 20b.
  • the third proximity portion 50c is located on the opposite side to the first proximity portion 50a, and is sandwiched between the third outlet 20c and the fourth outlet 20d.
  • the second proximity portion 5 Ob is located at a predetermined angle from the axis 15 passing through the center of the evening baffle 40 and orthogonal to the short side of the casing 11 at the second outlet 20 b side.
  • c is located on the axis 3 6 inclined (first proximity unit 5 0 a side) also, this heat exchanger 3 0 is connected to the coolant supply unit 3 1 at its ends.
  • the refrigerant supply unit 31 is arranged so as to be deviated toward the fourth outlet 20 d with respect to the shaft 15.
  • an air passage from the turbo fan 40 to each outlet is formed. That is, a first air passage 35a extending from the turbo fan 40 to the first outlet 20a is formed between the refrigerant supply section 31 and the first proximity section 50a.
  • a second air passage (35) reaching the outlet (20b) is formed between the first proximity part (50a) and the second proximity part (50b).
  • a third air passage 35c leading to the third outlet 20c is formed between the second proximity portion 50b and the third proximity portion 50c, and the fourth air outlet 20 from the turbo fan 40.
  • a fourth air passage 35d leading to d is formed between the third proximity part 50c and the refrigerant supply part 31.
  • respective regions 30a to 30d of the heat exchanger 30 are arranged. That is, of the heat exchanger 30, the first region 30a between the refrigerant supply unit 31 and the first proximity unit 50a is disposed in the first air passage 35a, and the first proximity unit A second region 30b between 50a and the second proximity portion 50b is arranged in the second air passage 35b. In the heat exchanger 30, a third region 30c between the second proximity portion 50b and the third proximity portion 50c is disposed in the third air passage 35c, and A fourth region 30d between the third proximity portion 50c and the refrigerant supply portion 31 is disposed in the fourth air passage 35d.
  • the first and third regions 30a and 30c are compared with the second and fourth regions 30b and 30d. And its length is becoming shorter.
  • Air As the turbo fan 40 rotates, air flows inside the indoor unit 1. Air, the air taken c taken in from the suction port 2 1 facing the chamber inside of the indoor unit 1, the turbofan 4 0, is blown around it. The extruded air is heat-exchanged by a heat exchanger 30 arranged around the turbo fan 40, and is supplied into the room from each of the outlets 20a to 20d.
  • the second outlet 20b faces the wind direction from the turbo fan 40, and the heat exchanger 30 When there is no air flow, the air flow speed from the turbo fan 40 increases.
  • the third outlet 20 c is located at a position along the wind direction from the turbo fan 40, It does not face the wind direction from Bofan 40. That is, the third outlet port 20c is arranged at a position where the air flow rate from the turbo fan 40 becomes slow when the heat exchanger 30 is not provided.
  • the first outlet 20a and the fourth outlet 20d with respect to the shaft 14, the rotation direction of the turbo fan 40 and the respective outlets 20a, 20d. Due to the arrangement, when the heat exchanger 30 is not provided, the air flow speed to the fourth outlet 20d is faster than that of the first air passage 35a.
  • the heat exchanger 30 formed in a substantially rhombic shape is arranged to be inclined with respect to the axis 15, and each of the outlets 20 a to 20 d is
  • the width (length) of each region of the heat exchanger 30 in the air passages 35a to 35d is not uniform c, that is, the widths of the second and fourth regions 30b, 3001 are the first and the third. It is narrower than the widths of the third regions 303 and 30c.
  • the resistance of the air when passing through the second and fourth regions 30b and 30d is greater than the resistance when passing through the first and third regions 30a and 30c.
  • the amount (wind speed) of air that passes through the air passages 35a to 35d and is blown out from the respective air outlets 20a to 20d is made uniform.
  • FIG. 4 shows a horizontal cross-sectional view of the indoor unit 2 of the air conditioner according to the second embodiment of the present invention.c
  • the resistance of each air passage is changed by shifting the arrangement of the heat exchanger.
  • the air volume from each outlet is made uniform.
  • the length of each region of the heat exchanger disposed in each air passage, that is, the heat exchange area is different. Therefore, although the air volume from each outlet is equalized, the temperature distribution may be uneven.
  • the heat exchanger 32 is a member that exchanges heat with the passing air, and is arranged so as to surround the turbo fan 40 as described above.
  • This heat exchanger 32 has a first position with respect to an axis 15 passing through the center of the turbo fan 40 and orthogonal to the short side of the casing 11.
  • first proximity unit 5 3 a is the shaft 1 4 It is located in the vicinity, and is sandwiched between the first outlet 20a and the second outlet 20b.
  • the third proximity portion 53c is located on the opposite side to the first proximity portion 53a, and is sandwiched between the third outlet 20c and the fourth outlet 20dc. Further, the second proximity portion 53b is located near the shaft 37 inclined to the second outlet 20b by a predetermined angle from the shaft 15.
  • an air passage from the turbo fan 40 to each outlet is formed. That is, a first air passage 35 a extending from the turbo fan 40 to the first outlet 20 a is formed between the refrigerant supply part 33 and the first proximity part 53 a, and the first air passage 35 a
  • a second air passage 35 leading to the second outlet 20b is formed between the first adjacent portion 53a and the second adjacent portion 53b, and the second air passage 35 extends from the turbo fan 40 to the third outlet 20c.
  • a third air passage 35c extending between the second proximity portion 53b and the third proximity portion 53c is formed, and a fourth air passage 3 extending from the turbo fan 40 to the fourth outlet 20d is formed. 5d is formed between the third proximity portion 53c and the coolant supply portion 33.
  • the first region 3 2a of the first body 3 2 1 of the heat exchanger 32 is disposed in the first air passage 35 a, and the second region 3 2 of the first body 3 2 1 b is disposed in the second air passage 35b. Further, a third area 32c of the second body 322 of the heat exchanger 32 is disposed in the third air passage 35c, and a fourth area 32 of the second body 3222. d is disposed in the fourth air passage 35 d.
  • the first and third regions 32a and 32c are formed with bent portions 54 that bulge out of the casing 11, and the second and fourth regions 32b and 32d are formed. Is formed with a bent portion 52 bulging inside the casing 11. As a result, the lengths of the heat exchangers in the four regions 32a to 32d are almost equal, and thus the length of each region is The heat exchange areas are almost equal.
  • the basic operation of the indoor unit 2 is the same as the operation in the first embodiment.
  • the second outlet 2 Ob and the third outlet 20 c when considering the second outlet 2 Ob and the third outlet 20 c with respect to the shaft 14, if the heat exchanger is not provided, the second The air velocity to the outlet 20b is faster than the air velocity to the third outlet 20c.
  • ⁇ is faster than the air velocity
  • the second proximity portion 53b is arranged to be inclined with respect to the axis 15 and the amount of air blown out from each of the outlets 20a to 20d. (Wind speed) is uniform. Further, by bending the heat exchanger 32, the heat exchange area in each region is substantially equal, and the heat exchange efficiency in each of the air passages 35a to 35d is made uniform. Thereby, the efficiency of cooling and heating can be improved as compared with the conventional air conditioner. Further, the temperature distribution of the air blown out from each of the outlets 20a to 20d can be made uniform.
  • bent portion 52 is formed in the heat exchanger 32 to secure the heat exchange area, so that the heat exchange area can be increased without increasing the size of the indoor unit 2.
  • FIG. 5 shows a horizontal sectional view of the indoor unit 3 of the air conditioner according to the third embodiment of the present invention.
  • the casing 13 has a substantially square cross section, and has four corners with chamfers. I have.
  • An outlet 22 and a suction port (not shown) are provided along the four sides on the outer peripheral portion of the bottom plate.
  • a turbofan 40 is arranged at the center of the casing 13.
  • the heat exchangers 34 are arranged in a substantially square shape so as to surround the turbo fan 40 inside the outlet 22, and both ends are provided at one corner of the casing 13. Connected to parts 3-8.
  • the heat exchanger 34 has a bent portion 56 at a position corresponding to each corner in order to be arranged along each side of the square. Ma Among the four straight portions of the heat exchanger 34, the bending portion 5 which bends so as to expand inside the casing 13 downstream of the turbo fan 40 in the rotational direction of the turbo fan 40 with respect to the refrigerant supply portion 38. Has two.
  • the basic operation of the indoor unit 3 is the same as the operation in the first embodiment.
  • an air passage is formed in each of the paths from the turbo fan 40 to each of the outlets 22.
  • air is guided and guided to the wall of the refrigerant supply section 38.
  • a bent portion 52 is provided in a region of the heat exchanger located in an air passage through which a large amount of air flows, thereby increasing the heat exchange area.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Air-Flow Control Members (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

La présente invention concerne un appareil de climatisation comportant une soufflante centrifuge permettant d'homogénéiser la distribution de la vitesse de l'air au niveau des diffuseurs d'une section intérieure et d'augmenter l'efficacité de l'échange thermique sans accroître le volume de la section intérieure, comprenant la section intérieure (1), laquelle section intérieure (1) comprenant en outre une enveloppe (11), un échangeur thermique (30), et un ventilateur à double flux (40), dans lequel les passages d'air (35b, 35d) menant vers la pluralité de diffuseurs (20) sur le côté opposé à la direction de l'air à partir du ventilateur à double flux (40) parmi les passages (35) conduisant du ventilateur à double flux (40) vers la pluralité de diffuseurs (20) à travers l'échangeur thermique (30) sont agencés à être plus étroits que les autres passages d'air (35a, 35c)
PCT/JP2002/002224 2001-03-30 2002-03-08 Appareil de climatisation WO2002081974A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002236276A AU2002236276B2 (en) 2001-03-30 2002-03-08 Air Conditioner
EP02702856A EP1382917A4 (fr) 2001-03-30 2002-03-08 Appareil de climatisation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001-99393 2001-03-30
JP2001099393A JP4724939B2 (ja) 2001-03-30 2001-03-30 空気調和機

Publications (1)

Publication Number Publication Date
WO2002081974A1 true WO2002081974A1 (fr) 2002-10-17

Family

ID=18952935

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/002224 WO2002081974A1 (fr) 2001-03-30 2002-03-08 Appareil de climatisation

Country Status (5)

Country Link
EP (1) EP1382917A4 (fr)
JP (1) JP4724939B2 (fr)
CN (2) CN1184438C (fr)
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JP4923639B2 (ja) 2005-11-11 2012-04-25 ダイキン工業株式会社 空気調和装置の室内パネル及び空気調和装置
JP3972948B2 (ja) * 2006-01-04 2007-09-05 ダイキン工業株式会社 空気調和機の室内機
JP5494705B2 (ja) * 2012-03-16 2014-05-21 ダイキン工業株式会社 ２方向吹出し式の天井埋込型空気調和機
CN105156345B (zh) * 2015-09-11 2018-06-22 珠海格力电器股份有限公司 一种立式空调器
JP6409907B1 (ja) * 2017-05-24 2018-10-24 ダイキン工業株式会社 空気調和機の室内機
JP6477784B2 (ja) * 2017-05-24 2019-03-06 ダイキン工業株式会社 空気調和機の室内機
JP6409908B1 (ja) * 2017-05-24 2018-10-24 ダイキン工業株式会社 空気調和機の室内機
CN109751666B (zh) * 2019-01-14 2022-03-29 青岛海尔空调电子有限公司 一种应用于卡式空调的换热器和卡式空调
KR102682072B1 (ko) * 2019-09-24 2024-07-08 니혼 캐리어 가부시키가이샤 냉동 사이클 장치의 실내기 및 임펠러
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AU2002236276B2 (en) 2005-04-21
EP1382917A1 (fr) 2004-01-21
EP1382917A4 (fr) 2007-03-14
CN1184438C (zh) 2005-01-12
JP2002295891A (ja) 2002-10-09
CN2526722Y (zh) 2002-12-18
JP4724939B2 (ja) 2011-07-13
CN1379213A (zh) 2002-11-13

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