EP3614064B1 - Unité intérieure pour climatiseur - Google Patents

Unité intérieure pour climatiseur Download PDF

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Publication number
EP3614064B1
EP3614064B1 EP18805432.4A EP18805432A EP3614064B1 EP 3614064 B1 EP3614064 B1 EP 3614064B1 EP 18805432 A EP18805432 A EP 18805432A EP 3614064 B1 EP3614064 B1 EP 3614064B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
wall
main body
indoor unit
heat exchange
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.)
Active
Application number
EP18805432.4A
Other languages
German (de)
English (en)
Other versions
EP3614064A4 (fr
EP3614064A1 (fr
Inventor
Yasuhiro Ohishi
Hirokazu DOI
Daisuke FUKAHORI
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 EP3614064A1 publication Critical patent/EP3614064A1/fr
Publication of EP3614064A4 publication Critical patent/EP3614064A4/fr
Application granted granted Critical
Publication of EP3614064B1 publication Critical patent/EP3614064B1/fr
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Anticipated expiration legal-status Critical

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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
    • F24F1/0068—Indoor units, e.g. fan coil units characterised by the arrangement of refrigerant piping outside the heat exchanger within the unit casing
    • 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
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • 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
    • 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

Definitions

  • the present invention relates to an indoor unit for an air conditioner.
  • a conventional indoor unit for an air conditioner includes a heat exchanger having a U shape, a partition with which an opening of the heat exchanger is covered, and a turbo fan surrounded with the heat exchanger and the partition and configured to suck in and blow out air in two directions via the heat exchanger (see, for example, JP 2015-81692 A ).
  • EP 0985889 A2 discloses a ceiling embedded type indoor unit which is reduced in height to provide a compact unit body size and which provides a large cooling/heating capability.
  • the partition has a protrusion extending toward the turbo fan. This configuration achieves equalization of an airflow from the protrusion toward a first end of the partition and an airflow from the protrusion toward a second end of the partition.
  • air is guided in a rotation direction of the turbo fan in a region from the protrusion to the first end of the partition.
  • air is guided in the opposite direction to the rotation direction of the turbo fan in a region from the protrusion to the second end of the partition.
  • the conventional indoor unit for an air conditioner accordingly makes unusual noise at a high-pressure spot occurring near an end of the partition.
  • the present invention provides an indoor unit for an air conditioner, the indoor unit being capable of suppressing occurrence of a high-pressure spot near an end of a partition to thereby reduce unusual noise.
  • the present invention provides an indoor unit for an air conditioner, the indoor unit including:
  • the partition guides the air blown out by the centrifugal fan from the first end of the heat exchanger to the second end of the heat exchanger, so that air flowing along the partition flows in a rotation direction of the centrifugal fan.
  • This configuration therefore reduces pressure near an end of the partition.
  • This configuration thus suppresses occurrence of a high-pressure spot near the end of the partition to thereby reduce unusual noise.
  • the distance between the centrifugal fan and the partition at the position near the second end of the heat exchanger is longer than that at the position near the first end of the heat exchanger.
  • This configuration therefore achieves reduction in pressure near a downstream end of the partition.
  • This configuration thus achieves further reduction in pressure near the downstream end of the partition, which improves an effect of reducing unusual noise.
  • a part having the second end of the heat exchanger extends beyond the first end of the heat exchanger toward a wall of the casing.
  • the part having the second end of the heat exchanger extends beyond the first end of the heat exchanger toward the wall of the casing. This configuration therefore achieves increase in distance between the centrifugal fan and the second end of the heat exchanger. This results in pressure reduction near the second end of the second heat exchanger.
  • the air from the centrifugal fan is blown out through a blow-out port located on a side opposite from the partition with respect to the centrifugal fan.
  • air from the centrifugal fan is blown out through the blow-out port located on the side opposite from the partition with respect to the centrifugal fan.
  • the air from the centrifugal fan therefore smoothly flows from the partition to the blow-out port. This configuration thus suppresses occurrence of turbulence of air from the centrifugal fan, at an air flow path from the partition to the blow-out port.
  • the distance between the centrifugal fan and the partition gradually increases from the first end of the heat exchanger toward the second end of the heat exchanger.
  • the distance between the centrifugal fan and the partition gradually increases from the first end of the heat exchanger toward the second end of the heat exchanger. This configuration therefore enables suppression of collision between air flowing from the centrifugal fan to the heat exchanger and air flowing along the partition. This configuration thus further improves the effect of reducing unusual noise.
  • the present invention thus provides an indoor unit for an air conditioner, the indoor unit being capable of suppressing occurrence of a high-pressure spot near an end of a partition to thereby reduce unusual noise.
  • FIG. 1 is a perspective view of an indoor unit for an air conditioner according to an embodiment of the present invention, the indoor unit being seen obliquely from below.
  • FIG. 2 is a perspective view of the indoor unit seen obliquely from above.
  • the indoor unit is designed to be embedded in a ceiling, and includes a casing main body 1, a panel 2 having a quadrilateral shape, the panel 2 being mounted to a lower side of the casing main body 1, and a grille 3 detachably mounted to the panel 2.
  • the casing main body 1, the panel 2, and the grille 3 constitute an example of a casing.
  • the indoor unit also includes a pipe connection part 5, a pipe connection part 6, and a drain socket 7 each protruding from a sidewall of the casing main body 1.
  • each of the pipe connection parts 5 and 6 is connected to an external refrigerant pipe (not illustrated).
  • the drain socket 7 is connected to an external drain hose (not illustrated).
  • the indoor unit also includes an electrical component 8 disposed on the sidewall of the casing main body 1 and juxtaposed with the pipe connection parts 5 and 6 and the drain socket 7.
  • the panel 2 has a blow-out port 10.
  • the blow-out port 10 is located on one of longitudinally opposite sides of the grille 3 so as to extend along a shorter side of an outer edge of the panel 2.
  • the panel 2 also has a flap 20 pivotably mounted thereto and configured to open and close the blow-out port 10. In FIG. 1 , the flap 20 closes the blow-out port 10.
  • the indoor unit according to this embodiment also includes hanger fittings 101, 102, 103, and 104 (the hanger fitting 104 is illustrated in FIG. 5 ).
  • the hanger fittings 101, 102, 103, and 104 are secured to hanger bolts (not illustrated) suspended from, for example, a framework in a roof-space. The indoor unit is thus suspended from a ceiling.
  • FIG. 3 is a bottom view of the indoor unit.
  • the same constituent elements as those illustrated in FIGS. 1 and 2 are denoted with the same reference signs as those for the constituent elements illustrated in FIGS. 1 and 2 .
  • the flap 20 has a U shape in plan view, and is configured to control a direction of air blown out through the blow-out port 10.
  • the flap 20 includes a flap main body 20a extending along a pivot axis 21, a first auxiliary flap 20b elongated from a first end of the flap main body 20a, and a second auxiliary flap 20c elongated from a second end of the flap main body 20a.
  • the first auxiliary flap 20b is elongated from the first end of the flap main body 20a so as to extend in a direction away from the blow-out port 10 in the casing main body 1.
  • the first auxiliary flap 20b is linked to a stepping motor 80 with a link mechanism 90.
  • the second auxiliary flap 20c is elongated from the second end of the flap main body 20a so as to extend in the direction away from the blow-out port 10 in the casing main body 1.
  • the second auxiliary flap 20c and the first auxiliary flap 20b extend in parallel.
  • the stepping motor 80 is disposed in a space defined by the casing main body 1, the panel 2, and the grille 3.
  • the stepping motor 80 and the flap 20 are arranged adjacent to each other in a direction perpendicular to the pivot axis of the flap 20.
  • the stepping motor 80 is located on a side opposite from the blow-out port 10 with respect to the pivot axis 21 in the casing main body 1.
  • the stepping motor 80 generates a driving force for turning the flap 20.
  • the flap 20 receives the driving force from the stepping motor 80 through the link mechanism 90 to turn about the pivot axis 21.
  • the stepping motor 80 may be closer to a blow-out port 10 side than the pivot axis 21 is in the casing main body 1.
  • the casing main body 1 (see FIGS. 1 and 2 ) has in its center a suction port 1a.
  • a filter 4 (see FIG. 4 ) is disposed between the suction port 1a and the grille 3.
  • blow-out port 10 in the casing main body 1 and a first wall 11 (see FIG. 5 ) of the casing main body 1 are on the same side.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG. 3 .
  • the same constituent elements as those illustrated in FIGS. 1 to 3 are denoted with the same reference signs as those for the constituent elements illustrated in FIGS. 1 to 3 .
  • the casing main body 1 houses therein a turbo fan 30.
  • the turbo fan 30 is driven by a motor 31 to rotate in a predetermined rotation direction.
  • the predetermined rotation direction corresponds to a counterclockwise direction when the turbo fan 30 is seen from below.
  • the turbo fan 30 is an example of a centrifugal fan.
  • the casing main body 1 also houses therein a bell mouth 32 at a position between the suction port 1a and the turbo fan 30.
  • the turbo fan 30 sucks in indoor air via a space inside the bell mouth 32.
  • the casing main body 1 also houses therein a heat exchanger 40 and a partition plate 50 at a position around the turbo fan 30. Air from the turbo fan 30 is blown out via the heat exchanger 40 through the blow-out port 10 located opposite the partition plate 50 with respect to the turbo fan 30. At this time, the partition plate 50 guides to the heat exchanger 40 the air from the turbo fan 30.
  • the partition plate 50 is an example of a partition. The partition may constitute a part of the casing main body 1.
  • the casing main body 1 also houses therein a drain pan 60 at a position below the heat exchanger 40 and partition plate 50.
  • the drain pan 60 thus receives dew condensation water caused by condensation at each of the heat exchanger 40 and the partition plate 50.
  • the casing main body 1 has an air flow path P for guiding air from the turbo fan 30 to the blow-out port 10 in the panel 2.
  • FIG. 5 is a bottom view of the indoor unit from which the panel 2, the drain pan 60, and the like are detached.
  • the casing main body 1 includes a first wall 11 located near the blow-out port 10, a second wall 12 opposite to the first wall 11, a third wall 13 diagonally opposite to the first wall 11 and the second wall 12, and a fourth wall 14 diagonally opposite to the first wall 11 and the second wall 12 and opposite to the third wall 13.
  • Each of the third wall 13 and the fourth wall 14 has an end near the blow-out port 10, the end being elongated from the first wall 11.
  • Each of the third wall 13 and the fourth wall 14 has an end opposite to the blow-out port 10, the end being elongated from the second wall 12.
  • the second wall 12 is an example of a wall of a casing.
  • the second wall 12 includes a third wall 13-side portion 12a and a fourth wall 14-side portion 12b.
  • the fourth wall 14-side portion 12b is closer to the first wall 11 than the third wall 13-side portion 12a is.
  • the fourth wall 14-side portion 12b where the pipe connection parts 5 and 6 are disposed is recessed toward the first wall 11.
  • An intermediate portion 12c is located between the third wall 13-side portion 12a and the fourth wall 14-side portion 12b, and is tilted relative to each of the third wall 13-side portion 12a and the fourth wall 14-side portion 12b.
  • the heat exchanger 40 is disposed between the turbo fan 30 and the first wall 11, third wall 13, and fourth wall 14 of the casing main body 1.
  • the heat exchanger 40 includes a first heat exchange part 41, a second heat exchange part 42, and a third heat exchange part 43.
  • the first heat exchange part 41, the second heat exchange part 42, and the third heat exchange part 43 are formed integrally.
  • the first heat exchange part 41, the second heat exchange part 42, and the third heat exchange part 43 may be formed separately.
  • the first heat exchange part 41, the second heat exchange part 42, and the third heat exchange part 43 may be spaced apart from one another.
  • the first heat exchange part 41 is disposed opposite the first wall 11 of the casing main body 1, and extends along the first wall 11.
  • the second heat exchange part 42 is disposed opposite the third wall 13 of the casing main body 1, and extends from the first wall 11 toward the second wall 12.
  • the second heat exchange part 42 is located upstream of the first heat exchange part 41 in a rotation direction R of the turbo fan 30.
  • the drain pump 70 is disposed between a distal end, or tip, of the second heat exchange part 42 and the third wall 13-side portion of the second wall 12.
  • the drain pump 70 sucks in dew condensation water and the like retained in the drain pan 60, and discharges the sucked dew condensation water and the like toward the drain socket 7.
  • the drain pump 70 is a pump for discharging, from the casing main body 1, dew condensation water and the like in the casing main body 1.
  • the third heat exchange part 43 is disposed opposite the fourth wall 14 of the casing main body 1, and extends from the first wall 11 toward the second wall 12.
  • the third heat exchange part 43 is located downstream of the first heat exchange part 41 in the rotation direction R of the turbo fan 30.
  • the distal end of the second heat exchange part 42 is closer to the second wall 12 than a distal end, or tip, of the third heat exchange part 43 is.
  • the distal end of the second heat exchange part 42 is located at a place that is relatively far from the blow-out port 10
  • the distal end of the third heat exchange part 43 is located at a place that is relatively close to the blow-out port 10.
  • the distal end of the second heat exchange part 42 is an example of a second end of a heat exchanger.
  • the distal end of the third heat exchange part 43 is an example of a first end of the heat exchanger.
  • the distal end of the third heat exchange part 43 is connected to the pipe connection part 5 with a refrigerant pipe 85.
  • the distal end of the third heat exchange part 43 is connected to the pipe connection part 6 with a refrigerant pipe 86.
  • the pipe connection parts 5 and 6 respectively connect the refrigerant pipes 85 and 86 inside the casing main body 1 to refrigerant pipes outside the casing main body 1.
  • the pipe connection parts 5 and 6 allow a refrigerant to flow into the heat exchanger 40.
  • a distance between the second heat exchange part 42 and the third heat exchange part 43 gradually increases from the blow-out port 10 in a direction away from the blow-out port 10.
  • the heat exchanger 40 has a U shape in plan view.
  • the distance between the second heat exchange part 42 and the third heat exchange part 43 may be fixed or may be substantially fixed.
  • the heat exchanger 40 may have, for example, a V shape or a circular shape in plan view.
  • the partition plate 50 and the heat exchanger 40 surround the turbo fan 30.
  • the partition plate 50 is connected to the distal end of the second heat exchange part 42 and the distal end of the third heat exchange part 43.
  • the partition plate 50 guides air blown out by the turbo fan 30 from the distal end of the third heat exchange part 43 to the distal end of the second heat exchange part 42.
  • a distance L between the turbo fan 30 and the partition plate 50 at a position near the distal end of the second heat exchange part 42 is longer than that at a position near the distal end of the third heat exchange part 43. More specifically, the distance L between the turbo fan 30 and the partition plate 50 gradually increases from the distal end of the third heat exchange part 43 toward the distal end of the second heat exchange part 42.
  • the distance L between the turbo fan 30 and the partition plate 50 may increase in a stepwise manner.
  • FIG. 6 illustrates the indoor unit which is illustrated in FIG. 5 and to which the flap 20 (diagonally shaded) is attached.
  • FIG. 7 illustrates the indoor unit from which the flap 20 is detached.
  • the same constituent elements as those illustrated in FIGS. 1 to 5 are denoted with the same reference signs as those for the constituent elements illustrated in FIGS. 1 to 5 .
  • the flap main body 20a, the first auxiliary flap 20b, and the second auxiliary flap 20c are located so as not to overlap the heat exchanger 40 in plan view.
  • the flap main body 20a extends along the first wall 11 of the casing main body 1.
  • the first auxiliary flap 20b extends along the third wall 13 of the casing main body 1.
  • the second auxiliary flap 20c extends along the fourth wall 14 of the casing main body 1.
  • Each of the first and second auxiliary flaps 20b and 20c has a distal end, or tip, located near the second wall 12 of the casing main body 1.
  • the blow-out port 10 includes a first blow-out port part 10a having a rectangular shape and extending along the first wall 11 of the casing main body 1, a second blow-out port part 10b, and a third blow-out port part 10c.
  • the second blow-out port part 10b is elongated from a first end of the first blow-out port part 10a, and extends toward the third wall 13 of the casing main body 1.
  • the second blow-out port part 10b is then bent to extend toward the second wall 12 of the casing main body 1.
  • the third blow-out port part 10c is elongated from a second end of the first blow-out port part 10a, and extends toward the fourth wall 14 of the casing main body 1.
  • the third blow-out port part 10c is then bent to extend toward the second wall 12 of the casing main body 1.
  • FIG. 8 is a top view of the partition plate 50.
  • FIG. 9 is a perspective view of the partition plate 50 seen obliquely from above.
  • FIG. 10 is a bottom view of the partition plate 50.
  • the partition plate 50 includes a partition plate main body 50a having a curved shape, and a flange 50b disposed on an upper end of the partition plate main body 50a.
  • a distance between an inner peripheral face of the partition plate main body 50a and an inner peripheral edge of the turbo fan 30 corresponds to the distance L between the turbo fan 30 and the partition plate 50. More specifically, the distance L corresponds to a distance from an intersection A to an intersection B, the intersection A being an intersection of a ray that radially extends from a center of the turbo fan 30 toward the partition plate main body 50a and the outer peripheral edge of the turbo fan 30, the intersection B being an intersection of the ray and the inner peripheral face of the partition plate main body 50a.
  • the flange 50b extends from an upstream end of the partition plate main body 50a toward a downstream end of the partition plate main body 50a. Specifically, the flange 50b extends by about two-thirds of the length of the partition plate main body 50a.
  • the turbo fan 30 blows out air, and the air flows from the distal end of the third heat exchange part 43 toward the distal end of the second heat exchange part 42 in the region between the turbo fan 30 and the partition plate 50.
  • the air from the turbo fan 30 then passes through the heat exchanger 40, flows through the air flow path P, and reaches the blow-out port 10 in the panel 2.
  • the air in the region between the turbo fan 30 and the partition plate 50 flows in the rotation direction R of the turbo fan 30.
  • This configuration therefore achieves reduction in pressure near the upstream end of the partition plate 50 and pressure near the downstream end of the partition plate 50.
  • the indoor unit having the configuration described above thus suppresses occurrence of a high-pressure spot near the upstream end of the partition plate 50 and a high-pressure spot near the downstream end of the partition plate 50 to thereby reduce unusual noise.
  • the distance L between the turbo fan 30 and the partition plate 50 at the position near the distal end of the second heat exchange part 42 is longer than that at the position near the distal end of the third heat exchange part 43.
  • This configuration therefore achieves reduction in pressure near the downstream end of the partition plate 50.
  • This configuration thus achieves further reduction in pressure near the downstream end of the partition plate 50, which further improves the effect of reducing unusual noise.
  • the distance L between the turbo fan 30 and the partition plate 50 gradually increases from the distal end of the third heat exchange part 43 toward the distal end of the second heat exchange part 42. This configuration therefore enables suppression of collision between air flowing from the turbo fan 30 to the second heat exchange part 42 and air flowing along the partition plate 50. This configuration thus further improves the effect of reducing unusual noise.
  • a part having the distal end of the second heat exchange part 42 extends beyond the distal end of the third heat exchange part 43 toward the second wall 12 of the casing main body 1. This configuration therefore achieves increase in distance between the turbo fan 30 and the distal end of the second heat exchange part 42. This results in pressure reduction near the distal end of the second heat exchange part 42.
  • Air from the turbo fan 30 is blown out through the blow-out port 10 located on a side opposite from the partition plate 50 with respect to the turbo fan 30.
  • the air from the turbo fan 30 therefore smoothly flows from the partition plate 50 to the blow-out port 10. This configuration thus suppresses occurrence of turbulence of air from the turbo fan 30, at an air flow path from the partition plate 50 to the blow-out port 10.
  • the casing of the indoor unit has a rectangular parallelepiped shape and is constituted of the casing main body 1, the panel 2, and the grille 3; however, the shape of the casing is not limited thereto.
  • the indoor unit is designed to be embedded in a ceiling; however, the indoor unit is not limited thereto.
  • the present invention is also applicable to an indoor unit designed to be suspended from a ceiling.
  • the indoor unit has the blow-out port 10 through which air is blown out in one direction via the heat exchanger 40.
  • the indoor unit may have blow-out ports through which air is blown out in two directions or in three directions via the heat exchanger 40.
  • the casing main body 1 houses therein the heat exchanger 40 such that the turbo fan 30 is surrounded by the heat exchanger 40 on three sides.
  • the casing main body 1 may house therein the heat exchanger such that the turbo fan 30 is surrounded by the heat exchanger on two sides.
  • the casing main body 1 may house therein a heat exchanger corresponding to the heat exchanger 40 from which the second heat exchange part 42 or the third heat exchange part 43 is removed, that is, a heat exchanger having an L shape in plan view.
  • the heat exchanger may be located between the turbo fan 30 and the first wall 11 and third wall 13 of the casing main body 1.
  • the heat exchanger may be located between the turbo fan 30 and the first wall 11 and fourth wall 14 of the casing main body 1.

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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)

Claims (2)

  1. Unité intérieure pour un climatiseur, comprenant :
    un boîtier (1, 2, 3) ;
    un ventilateur centrifuge (30) disposé dans le boîtier (1, 2, 3) ;
    un échangeur de chaleur (40) disposé dans le boîtier (1, 2, 3) de sorte que le ventilateur centrifuge (30) est entouré par l'échangeur de chaleur (40) sur deux ou trois côtés ; et
    une séparation (50) avec laquelle le ventilateur centrifuge (30) est entouré conjointement avec l'échangeur de chaleur (40), la séparation (50) étant raccordée à une première extrémité de l'échangeur de chaleur (40) et à une seconde extrémité de l'échangeur de chaleur (40) et configurée pour guider de l'air soufflé par le ventilateur centrifuge (30) de la première extrémité de l'échangeur de chaleur (40) à la seconde extrémité de l'échangeur de chaleur (40),
    dans laquelle
    une distance (L) entre le ventilateur centrifuge (30) et la séparation (50) au niveau d'une position proche de la seconde extrémité de l'échangeur de chaleur (40) est plus longue que celle au niveau d'une position proche de la première extrémité de l'échangeur de chaleur (40),
    une partie présentant la seconde extrémité de l'échangeur de chaleur (40) s'étend au-delà de la première extrémité de l'échangeur de chaleur (40) vers une paroi (12) du boîtier (1, 2, 3),
    caractérisée en ce que
    l'air provenant du ventilateur centrifuge (30) est soufflé à travers un orifice de soufflage (10) situé sur un côté opposé à la séparation (50) par rapport au ventilateur centrifuge (30).
  2. Unité intérieure pour un climatiseur selon la revendication 1, dans laquelle
    la distance (L) entre le ventilateur centrifuge (30) et la séparation (50) augmente progressivement de la première extrémité de l'échangeur de chaleur (40) vers la seconde extrémité de l'échangeur de chaleur (40).
EP18805432.4A 2017-05-24 2018-04-13 Unité intérieure pour climatiseur Active EP3614064B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017103055A JP6409908B1 (ja) 2017-05-24 2017-05-24 空気調和機の室内機
PCT/JP2018/015549 WO2018216392A1 (fr) 2017-05-24 2018-04-13 Unité intérieure pour climatiseur

Publications (3)

Publication Number Publication Date
EP3614064A1 EP3614064A1 (fr) 2020-02-26
EP3614064A4 EP3614064A4 (fr) 2020-04-15
EP3614064B1 true EP3614064B1 (fr) 2021-06-09

Family

ID=63920479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18805432.4A Active EP3614064B1 (fr) 2017-05-24 2018-04-13 Unité intérieure pour climatiseur

Country Status (6)

Country Link
EP (1) EP3614064B1 (fr)
JP (1) JP6409908B1 (fr)
CN (1) CN110537059B (fr)
AU (1) AU2018271442B2 (fr)
ES (1) ES2887855T3 (fr)
WO (1) WO2018216392A1 (fr)

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Publication number Priority date Publication date Assignee Title
US20220186979A1 (en) * 2020-12-14 2022-06-16 Rheem Manufacturing Company Heating systems with unhoused centrifugal fan and wraparound heat exchanger

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CN110537059A (zh) 2019-12-03
EP3614064A4 (fr) 2020-04-15
JP2018197637A (ja) 2018-12-13
AU2018271442A1 (en) 2019-12-12
EP3614064A1 (fr) 2020-02-26
WO2018216392A1 (fr) 2018-11-29
JP6409908B1 (ja) 2018-10-24
AU2018271442B2 (en) 2021-04-01
ES2887855T3 (es) 2021-12-28
CN110537059B (zh) 2021-05-11

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