EP2568226A2 - Inneneinheit für eine Klimaanlagenvorrichtung sowie Klimaanlagenvorrichtung mit der Inneneinheit - Google Patents

Inneneinheit für eine Klimaanlagenvorrichtung sowie Klimaanlagenvorrichtung mit der Inneneinheit Download PDF

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Publication number
EP2568226A2
EP2568226A2 EP12178788A EP12178788A EP2568226A2 EP 2568226 A2 EP2568226 A2 EP 2568226A2 EP 12178788 A EP12178788 A EP 12178788A EP 12178788 A EP12178788 A EP 12178788A EP 2568226 A2 EP2568226 A2 EP 2568226A2
Authority
EP
European Patent Office
Prior art keywords
louver
air
sub
indoor unit
air outlet
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
EP12178788A
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English (en)
French (fr)
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EP2568226B1 (de
EP2568226A3 (de
Inventor
Akira Takamori
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Publication date
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Publication of EP2568226A2 publication Critical patent/EP2568226A2/de
Publication of EP2568226A3 publication Critical patent/EP2568226A3/de
Application granted granted Critical
Publication of EP2568226B1 publication Critical patent/EP2568226B1/de
Active legal-status Critical Current
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
    • F24F1/0011—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
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae

Definitions

  • the present invention relates to an indoor unit intended for an air-conditioning apparatus and to an air-conditioning apparatus including the indoor unit.
  • Known indoor units for air-conditioning apparatuses include axial-flow or mixed-flow fans functioning as air-sending devices that allow air in conditioned spaces to flow through the indoor units.
  • An example of such an indoor unit for an air-conditioning apparatus is as follows. "An indoor unit 40 includes a casing 1 having an air inlet 2 in an upper portion thereof and an air outlet 3 in a lower portion of a front face thereof, an axial-flow or mixed-flow fan 4 provided in the casing 1 at a position on the downstream side of the air inlet 2, and a heat exchanger 5 provided in the casing 1 at a position on the downstream side of the fan 4 and on the upstream side of the air outlet 3 and configured to exchange heat between air blown by the fan 4 and a refrigerant" (see Patent Literature 1).
  • Such a known indoor unit for an air-conditioning apparatus also includes a louver (also referred to as vane in Patent Literature 1) provided at the air outlet. The louver redirects the air blown out of the air outlet in the
  • Patent Literature 1 WO2010/089920 (Abstract, Paragraph [0012], and Fig. 1 )
  • the axial-flow or mixed-flow fan is provided at a position on the downstream side of the air inlet and on the upstream side of the heat exchanger. Furthermore, the axial-flow or mixed-flow fan is oriented such that the air-sending direction thereof (for example, the direction of the rotational axis of the fan if the fan is an axial-flow fan) is orthogonal to the air inlet provided in the upper portion of the casing. That is, in the known indoor unit including an axial-flow or mixed-flow fan, the air having flowed through the heat exchanger, that is, the air flowing toward the air outlet, tends to flow in the vertical direction of the casing. Therefore, the known indoor unit including an axial-flow or mixed-flow fan has the following problem that may occur in a case where the air blown out of the air outlet is redirected in the vertical direction by a louver.
  • Some of the air having flowed into the air outlet hits the upper surface of the louver and is redirected in such a manner as to be blown out of the air outlet.
  • the rest of the air having flowed into the air outlet but not having hit the upper surface of the louver is attracted toward the lower surface of the louver by the flow of the air that has hit the upper surface of the louver and by a flow of the air produced along a lower member defining the air outlet. Therefore, in the known indoor unit including an axial-flow or mixed-flow fan, the air flowing into the air outlet and the air flowing out of the air outlet tend to be angled with respect to each other because the flow of the air into the air outlet tends to be produced in the vertical direction of the casing.
  • the louver when the indoor unit is in cooling operation, the louver is cooled by cool air (the air cooled by the heat exchanger) that has hit the upper surface of the louver, whereby warm air from the conditioned space gathering in an area below the louver where flow separation may occur is cooled through the louver.
  • cool air the air cooled by the heat exchanger
  • warm air from the conditioned space gathering in an area below the louver where flow separation may occur is cooled through the louver.
  • This increases the probability that dew condensation may occur on the lower surface of the louver (in particular, a portion of the lower surface of the louver that faces the flow-separation area).
  • the known indoor unit including an axial-flow or mixed-flow fan has a problem in that dewdrops produced on the lower surface of the louver may gather and form larger dewdrops, and such dewdrops may be discharged into the conditioned space.
  • the present invention is to solve the above problem and to provide an indoor unit for an air-conditioning apparatus in which the discharge of dewdrops into a conditioned space that may occur in a cooling operation is suppressed, and an air-conditioning apparatus including the indoor unit.
  • An indoor unit for an air-conditioning apparatus includes a casing having an air inlet in an upper portion thereof and an air outlet in a lower portion of a front face thereof, an air-sending device provided in the casing and configured to suction air into the casing via the air inlet and to blow the air out of the casing via the air outlet, a heat exchanger provided in the casing and configured to exchange heat between the air suctioned into the casing and a refrigerant, and a louver provided at the air outlet and configured to redirect the air blown out of the air outlet in a vertical direction.
  • the louver includes a main louver and a sub-louver that each have a plate shape and are each configured to rotate around a rotational axis extending in a lateral direction of the casing.
  • the sub-louver In a state where a virtual line connecting a leeward end and a windward end of the main louver is level, the sub-louver is provided below the main louver; a leeward end of the sub-louver is positioned forward by a first predetermined distance with respect to a virtual perpendicular line passing through the windward end of the main louver; and a windward end of the sub-louver is positioned rearward by a second predetermined distance with respect to the virtual perpendicular line passing.
  • An air-conditioning apparatus includes the above indoor unit for an air-conditioning apparatus.
  • the louver includes the main louver and the sub-louver that each have a plate shape and are each configured to rotate around the rotational axis extending in the lateral direction of the casing.
  • the sub-louver In the state where the virtual line connecting the leeward end and the windward end of the main louver is level, the sub-louver is provided below the main louver; the leeward end of the sub-louver is positioned forward by the first predetermined distance with respect to the virtual perpendicular line passing through the windward end of the main louver; and the windward end of the sub-louver is positioned rearward by the second predetermined distance with respect to the virtual perpendicular line.
  • the application of the present invention is not limited to indoor units including axial-flow or mixed-flow fans.
  • the type of the air-sending device according to the present invention is not limited, and the present invention is applicable to indoor units including various types of air-sending devices.
  • the cross-flow fan is provided on the downstream side of the heat exchanger (i.e., between the heat exchanger and the air outlet).
  • the air flowing into the air outlet can be more easily redirected in such a manner as to be blown out of the air outlet, compared with an indoor unit including an axial-flow or mixed-flow fan, by tilting the direction in which the cross-flow fan blows air.
  • the direction in which the cross-flow fan blows air and the direction in which the air is blown out of the air outlet into the conditioned space cannot be made the same constantly. That is, a louver is also necessary in the indoor unit including a cross-flow fan so as to redirect the air flowing into the air outlet.
  • the present invention is also very effective for the indoor unit including a cross-flow fan.
  • Embodiment 1 of the present invention concerns an exemplary case of a wall-mounted indoor unit that includes an axial-flow or mixed-flow fan functioning as an air-sending device.
  • the shapes, sizes, and so forth of units (or elements included in the units) illustrated in the drawings may vary depending on circumstances.
  • Fig. 1 is a vertical sectional view of an indoor unit 100 for an air-conditioning apparatus according to Embodiment 1 of the present invention.
  • Fig. 2 is a perspective appearance view of the indoor unit 100.
  • Fig. 3 includes diagrams illustrating a louver 10 included in the indoor unit 100.
  • Fig. 3(a) is an enlarged view of the louver 10 illustrated in Fig. 1 .
  • Fig. 3(b) is an upper perspective view of the louver 10 illustrated in Fig. 3(a).
  • Fig. 3(c) is a lower perspective view of the louver 10 illustrated in Fig. 3(a) .
  • a configuration of the indoor unit 100 will be described with reference to Figs. 1 to 3 .
  • the left side in Fig. 1 is defined as the front side of the indoor unit 100.
  • the indoor unit 100 supplies conditioned air into a conditioned space, such as a room, by utilizing a refrigeration cycle through which a refrigerant circulates.
  • the indoor unit 100 basically includes the following: a casing 1 having an air inlet 2 via which room air is suctioned into the casing 1 and an air outlet 3 via which the conditioned air is supplied into the conditioned space, a fan 4 provided in the casing 1 and configured to suction the room air via the air inlet 2 and to cause the conditioned air to be blown out of the air outlet 3, a heat exchanger 5 provided in a flow path extending from the fan 4 to the air outlet 3 and configured to produce the conditioned air by exchanging heat between the refrigerant and the room air, and the louver 10 configured to redirect the flow of the conditioned air in the vertical direction such that the conditioned air is blown out of the air outlet 3.
  • the air inlet 2 is provided in an upper portion of the casing 1.
  • the air outlet 3 is provided in a lower portion of the casing 1 (more specifically
  • the fan 4 which is, for example, an axial-flow or mixed-flow fan, is provided at a position on the downstream side of the air inlet 2 and on the upstream side of the heat exchanger 5.
  • a plurality of fans 4 having moderate sizes are provided in parallel so that a desired volume of airflow can be produced. More specifically, as illustrated in Fig. 2 , the indoor unit 100 according to Embodiment 1 includes three fans 4 arranged in parallel in the lateral direction of the casing 1.
  • the heat exchanger 5 is provided on the leeward side of the fans 4.
  • the heat exchanger 5 provided in the casing 1 has a substantially A shape in sectional view.
  • Such a sectional shape of the heat exchanger 5 is only exemplary and may alternatively be a substantially M or N shape, for example.
  • the louver 10 is provided at the air outlet 3 and includes a main louver 11 and a sub-louver 12.
  • the main louver 11 has a substantially flat plate shape whose longitudinal direction corresponds to the lateral direction of the casing 1.
  • the sub-louver 12 also has a substantially flat plate shape whose longitudinal direction corresponds to the lateral direction of the casing 1, as with the main louver 11.
  • the main louver 11 and the sub-louver 12 are connected to each other at the lateral ends thereof with ribs 14.
  • the main louver 11 and the sub-louver 12 according to Embodiment 1 are provided as an integral body.
  • the sub-louver 12 has a width L2 smaller than a width L1 of the main louver 11.
  • the main louver 11 and the sub-louver 12 may each have a slightly curved shape in side sectional view.
  • the main louver 11 and the sub-louver 12 configured as above are arranged as illustrated in Fig. 3 .
  • the main louver 11 and the sub-louver 12 extend substantially parallel to each other.
  • a virtual line connecting a windward end 11 a and a leeward end 11 b of the main louver 11 and a virtual line connecting a windward end 12a and a leeward end 12b of the sub-louver 12 extend substantially parallel to each other.
  • the main louver 11 and the sub-louver 12 are at a predetermined distance L3 of 5 mm to 10 mm from each other.
  • the leeward end 12b of the sub-louver 12 is positioned forward by a predetermined distance L4 with respect to a virtual perpendicular line 11 c passing through the windward end 11 a of the main louver 11. Furthermore, in the case where the virtual line connecting the windward end 11a and the leeward end 11 b of the main louver 11 is level, the windward end 12a of the sub-louver 12 is positioned rearward by a predetermined distance L5 with respect to the virtual perpendicular line 11c passing through the windward end 11a of the main louver 11.
  • an edge (lower edge) of a lower member 3b defining the air outlet 3 is positioned forward by a predetermined distance L6 with respect to a virtual perpendicular line 12c passing through the windward end 12a of the sub-louver 12 (see Fig. 1 ).
  • the predetermined distance L4 corresponds to the first predetermined distance according to the present invention.
  • the predetermined distance L5 corresponds to the second predetermined distance according to the present invention.
  • the predetermined distance L6 corresponds to the third predetermined distance according to the present invention.
  • the ribs 14 included in the louver 10 have pins 13, respectively, projecting from the outer sides thereof.
  • the pins 13, that is projections, are rotatably supported by, for example, sidewalls of the casing 1. That is, the main louver 11 and the sub-louver 12 are configured to rotate around the pins 13 provided on a virtual line extending in the lateral direction of the casing 1.
  • the main louver 11 and the sub-louver 12 are driven by a motor or the like (not illustrated).
  • the indoor unit 100 according to Embodiment 1 also includes a straightening vane 6 provided on an upper member 3a defining the air outlet 3.
  • the straightening vane 6 guides the air having flowed into the air outlet 3 toward the exit of the air outlet 3.
  • the indoor unit 100 When the fans 4 are driven to rotate, the room air is suctioned into the casing 1 via the air inlet 2. The room air is blown by the fans 4 and flows into the heat exchanger 5 provided on the downstream side. The room air having flowed into the heat exchanger 5 is cooled in a cooling operation or is heated in a heating operation by the refrigerant flowing through the heat exchanger 5. The air thus conditioned flows into the air outlet 3.
  • the conditioned air having flowed into the air outlet 3 is redirected in the vertical direction by the louver 10 (i.e., by the main louver 11 and the sub-louver 12) and is blown out of the air outlet 3 into the conditioned space (i.e., to the outside of the casing 1). Airflows produced near the air outlet 3 in this process are illustrated in Fig. 4 .
  • Fig. 4 illustrates the airflows produced near the air outlet 3 of the indoor unit 100 for an air-conditioning apparatus according to Embodiment 1 of the present invention.
  • Fig. 4 is a sectional view corresponding to Fig. 1 .
  • Each fan 4 which is an axial-flow or mixed-flow fan, is oriented such that the air-sending direction thereof (for example, the direction of the rotational axis of the fan 4 if the fan 4 is an axial-flow fan) is orthogonal to the air inlet 2 provided in the upper portion of the casing 1. Therefore, the conditioned air having flowed through the heat exchanger 5 generally tends to flow in a vertical direction of the casing 1, although the direction of the flow slightly changes when passing through the heat exchanger 5.
  • the direction in which the conditioned air flows into the air outlet 3 is close to the vertical direction of the casing 1 on the upstream side of the louver 10, although the flow is redirected toward the exit of the air outlet 3 by the straightening vane 6. That is, the conditioned air having flowed into the air outlet 3 flows as follows.
  • Some of the conditioned air having flowed into an area near the upper member 3a defining the air outlet 3 is redirected toward the exit of the air outlet 3 by the straightening vane 6 while being pushed upward by airflow 9B, to be described below, thereby flowing along the upper member 3a defining the air outlet 3 (see airflow 9A illustrated in Fig. 4 ).
  • Some of the conditioned air having flowed into the air outlet 3 on the rear side with respect to the airflow 9A hits the upper surface of the main louver 11 and flows along the upper surface of the main louver 11 (see the airflow 9B illustrated in Fig. 4 ).
  • Some of the conditioned air having flowed into the air outlet 3 on the rear side with respect to the airflow 9B flows without hitting the upper surface of the main louver 11.
  • the air flowing on the rear side with respect to the airflow 9B tends to flow along the lower surface of the main louver 11. If the direction of such airflow is angled with respect to the direction in which the main louver 11 extends (i.e., the direction in which the conditioned air is blown out of the air outlet 3), the airflow may be separated from the lower surface of the main louver 11. Therefore, when the indoor unit 100 is in cooling operation, the main louver 11 is cooled by the cool air that hits the upper surface of the main louver 11, whereby warm room air gathering in an area below the main louver 11 where flow separation may occur is cooled through the main louver 11.
  • Embodiment 1 since the sub-louver 12 is provided, some of the conditioned air that has not hit the upper surface of the main louver 11 hits the upper surface of the sub-louver 12 and flows along the upper surface of the sub-louver 12 (see airflow 9C illustrated in Fig. 4 ). That is, the conditioned air having hit the upper surface of the sub-louver 12 flows between the main louver 11 and the sub-louver 12 while being attracted toward and flows along the lower surface of the main louver 11. Therefore, the conditioned air flowing along the lower surface of the main louver 11 does not tend to be separated from the lower surface of the main louver 11.
  • the occurrence of dew condensation on the lower surface of the main louver 11 is suppressed, and the discharge of dewdrops into the room is hence suppressed.
  • the predetermined distance L3 between the main louver 11 and the sub-louver 12 is set to 5 mm to 10 mm, flow separation does not tend to occur between the main louver 11 and the sub-louver 12. Consequently, the pressure loss in the conditioned air flowing between the main louver 11 and the sub-louver 12 is reduced. That is, the resistance in the flow path for the airflow 9C defined between the main louver 11 and the sub-louver 12 is reduced.
  • Embodiment 1 some of the conditioned air that has not hit the upper surface of the sub-louver 12 hits the lower member 3b defining the air outlet 3 and flows along the lower member 3b defining the air outlet 3 (see airflow 9D illustrated in Fig. 4 ). That is, the conditioned air having hit the lower member 3b defining the air outlet 3 is attracted toward the lower surface of the sub-louver 12 and flows along the lower surface of the sub-louver 12. Therefore, the conditioned air flowing below the sub-louver 12 does not tend to be separated from the lower surface of the sub-louver 12. Thus, in the cooling operation, the occurrence of dew condensation on the lower surface of the sub-louver 12 is also suppressed, and the discharge of dewdrops into the room is further suppressed.
  • the predetermined distance L4 becomes smaller.
  • the predetermined distance L4 becomes less than zero; that is, the windward end 11 a of the main louver 11 and the leeward end 12b of the sub-louver 12 become not overlapping each other in the vertical direction in side view.
  • the angle ⁇ of the louver 10 i.e., the main louver 11 and the sub-louver 12
  • the difference between the angle of the conditioned air flowing into the air outlet 3 and the angle of the conditioned air flowing out of the air outlet 3 becomes smaller. Therefore, flow separation does not tend to occur below the main louver 11.
  • the predetermined distance L4 is set so as to become zero or larger when the angle of the conditioned air flowing into the air outlet 3 (for example, the angle of the rotational axis of the fan 4 if the fan 4 is an axial-flow fan) and the angle of the main louver 11 become respective values that allow dewdrops to be discharged into the room because of the effect produced in the flow-separation area below the main louver 11.
  • the predetermined distance L6 is set so as to become zero or larger when the angle of the conditioned air flowing into the air outlet 3 (for example, the angle of the rotational axis of the fan 4 if the fan 4 is an axial-flow fan) and the angle of the sub-louver 12 become respective values that allow dewdrops to be discharged into the room because of the effect produced in the flow-separation area below the sub-louver 12.
  • the predetermined distance L5 is set on the basis of the predetermined distance L4 and the width L2 of the sub-louver 12.
  • the main louver 11 and the sub-louver 12 according to Embodiment 1 are arranged such that the predetermined distance L4 becomes zero when the angle ⁇ of the main louver 11 with respect to the level (see Fig. 5 ) is 55 degrees.
  • the main louver 11 and the sub-louver 12 are arranged such that the predetermined distance L4 becomes zero when the angle formed between the virtual perpendicular line 11c and the main louver 11 becomes 35 degrees.
  • the sub-louver 12 and the edge of the lower member 3b defining the air outlet 3 are arranged such that the predetermined distance L6 becomes zero when the angle of the sub-louver 12 with respect to the level becomes 55 degrees.
  • the sub-louver 12 and the edge of the lower member 3b defining the air outlet 3 are arranged such that the predetermined distance L6 becomes zero when the angle formed between the virtual perpendicular line 12c and the sub-louver 12 becomes 35 degrees.
  • the louver 10 includes the main louver 11 and the sub-louver 12. Furthermore, in the case where the virtual line connecting the windward end 11a and the leeward end 11b of the main louver 11 is level, the leeward end 12b of the sub-louver 12 is positioned forward by the predetermined distance L4 with respect to the virtual perpendicular line 11c passing through the windward end 11a of the main louver 11. Therefore, in the cooling operation, the occurrence of dew condensation on the lower surface of the main louver 11 is suppressed, and the discharge of dewdrops into the room is hence suppressed.
  • the width L2 of the sub-louver 12 is smaller than the width L1 of the main louver 11. Therefore, even if dew condensation occurs on the lower surface of the sub-louver 12, dewdrops produced on the lower surface of the sub-louver 12 do not tend to form larger dewdrops. Hence, the discharge of dewdrops into the room is further suppressed.
  • the edge (lower edge) of the lower member 3b defining the air outlet 3 is positioned forward by the predetermined distance L6 with respect to the virtual perpendicular line 12c passing through the windward end 12a of the sub-louver 12. Therefore, in the cooling operation, the occurrence of dew condensation on the lower surface of the sub-louver 12 is also suppressed, and the discharge of dewdrops into the room is further suppressed.
  • the straightening vane 6 is provided on the upper member 3a defining the air outlet 3, the conditioned air having flowed into the air outlet 3 is redirected toward the exit of the air outlet 3 by the straightening vane 6. This reduces the difference between the angle of the conditioned air flowing into the air outlet 3 and the angle of the conditioned air flowing out of the air outlet 3. Therefore, in the cooling operation, the occurrence of dew condensation on the lower surfaces of the main louver 11 and the sub-louver 12 is further suppressed, and the discharge of dewdrops into the room is further suppressed.
  • the main louver 11 and the sub-louver 12 may alternatively have respective rotational axes. That is, even if the main louver 11 and the sub-louver 12 have respective rotational axes, the effects described in Embodiment 1 are produced, as long as the main louver 11 and the sub-louver 12 are arranged as described above.
  • Embodiment 1 of the present invention concerns a case where the indoor unit 100 includes the fans 4 that are axial-flow or mixed-flow fans
  • the present invention can be embodied regardless of the type of the fans included in the indoor unit.
  • the flow of air is redirected in such a manner as to be blown out of the air outlet, regardless of the type of fans. Therefore, if the angle at which the airflow is redirected by the louver is large, the airflow produced below the louver may be separated from the lower surface of the louver. This may lead to dew condensation on the lower surface of the louver in the cooling operation. Dewdrops produced on the lower surface of the louver may gather and form larger dewdrops. Such dewdrops may be discharged into the conditioned space. Considering such circumstances, the present invention is effective in suppressing the discharge of dewdrops into the room in all types of indoor units including louvers.
  • air outlets of some known indoor units are closed by louvers when the indoor units are not in operation.
  • the air outlet 3 of the indoor unit 100 including the main louver 11 and the sub-louver 12 may be closed as described below.
  • elements that are the same as those according to Embodiment 1 are not specifically described, and like functions and elements are denoted by like reference numerals and characters.
  • the term "close" used in Embodiment 2 implies that the inside of the indoor unit 100 is concealed by the louver 10 and does not imply that the air outlet 3 of the indoor unit 100 is completely closed by the louver 10.
  • the air outlet 3 is to be closed by the louver 10 by rotating the louver 10.
  • the louver 10 may be rotated in such a direction that the windward end of the louver 10 moves toward the lower member 3b defining the air outlet 3 (hereinafter, referring to Fig. 1 , this direction of rotation is referred to as clockwise direction).
  • the louver 10 may be rotated in such a direction that the windward end of the louver 10 moves toward the upper member 3a defining the air outlet 3 (hereinafter, referring to Fig. 1 , this direction of rotation is referred to as counterclockwise direction).
  • the sub-louver 12 and the lower member 3b defining the air outlet 3 may interfere with each other, preventing the louver 10 from covering the air outlet 3.
  • the windward end 11 a of the main louver 11 may need to reach a position that is forward with respect to the edge of the upper member 3a defining the air outlet 3 so that the inside of the casing 1 is concealed when seen from below the main louver 11.
  • the windward end 11 a of the main louver 11 first passes below the edge of the upper member 3a defining the air outlet 3 and then reaches the position that is forward of the edge of the upper member 3a defining the air outlet 3. Therefore, consideration needs to be given for preventing the interference between the windward end 11 a of the main louver 11 and the upper member 3a defining the air outlet 3.
  • Fig. 6 is a vertical sectional view of an indoor unit 100 for an air-conditioning apparatus according to Embodiment 2 of the present invention.
  • the indoor unit 100 according to Embodiment 2 is configured as follows.
  • the louver 10 is configured to rotate in the counterclockwise direction in such a manner as to cover the air outlet 3. Furthermore, in a state where the windward end 11 a of the main louver 11 faces the edge of the upper member 3a defining the air outlet 3, a gap is produced between the windward end 11 a of the main louver 11 and the upper member 3a defining the air outlet 3 for the prevention of interference therebetween.
  • the main louver 11 and the sub-louver 12 are configured to rotate around the common pins 13.
  • the windward end 12a of the sub-louver 12 rotates about the pins 13 and on the outer side with respect to the windward end 11 a of the main louver 11, and comes into contact with the upper member 3a defining the air outlet 3. Accordingly, the gap between the windward end 11 a of the main louver 11 and the edge of the upper member 3a defining the air outlet 3 is covered by the sub-louver 12.
  • the indoor unit 100 when the indoor unit 100 is not in operation, the air outlet 3 is covered by the louver 10, providing the beauty of appearance.
  • the indoor unit 100 according to Embodiment 2 has improved design in the state where the indoor unit 100 is not in operation.
  • the louver 10 is stopped by directly bringing the windward end 12a of the sub-louver 12 into contact with the upper member 3a defining the air outlet 3.
  • the louver 10 may be stopped by bringing the windward end 12a of the sub-louver 12 into contact with a stopper 7 projecting from the upper member 3a defining the air outlet 3.
  • the louver 10 is stopped by directly bringing the windward end 12a of the sub-louver 12 into contact with the upper member 3a defining the air outlet 3
  • the windward end 12a of the sub-louver 12 and the upper member 3a defining the air outlet 3 are in line contact with each other.
  • the points of contact between the two may vary with dimensional errors of relevant components, assembly errors, and the like. Therefore, in the case where the louver 10 is stopped by directly bringing the windward end 12a of the sub-louver 12 into contact with the upper member 3a defining the air outlet 3, the position where the louver 10 (the main louver 11 and the sub-louver 12) stops may vary with different indoor units 100.
  • the louver 10 is stopped by bringing the windward end 12a of the sub-louver 12 into contact with the stopper 7, the windward end 12a of the sub-louver 12 and the stopper 7 are in point contact with each other. Therefore, the variation in the position where the louver 10 (the main louver 11 and the sub-louver 12) stops occurring with dimensional errors of relevant components, assembly errors, and the like is reduced. Hence, in the case where the louver 10 is stopped by bringing the windward end 12a of the sub-louver 12 into contact with the stopper 7, the indoor unit 100 has much improved design in the state where the indoor unit 100 is not in operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Duct Arrangements (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
EP12178788.1A 2011-08-18 2012-08-01 Inneneinheit für eine Klimaanlagenvorrichtung sowie Klimaanlagenvorrichtung mit der Inneneinheit Active EP2568226B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011179180A JP5518013B2 (ja) 2011-08-18 2011-08-18 空気調和機の室内機、及びこの室内機を備えた空気調和機

Publications (3)

Publication Number Publication Date
EP2568226A2 true EP2568226A2 (de) 2013-03-13
EP2568226A3 EP2568226A3 (de) 2014-05-07
EP2568226B1 EP2568226B1 (de) 2017-09-27

Family

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EP12178788.1A Active EP2568226B1 (de) 2011-08-18 2012-08-01 Inneneinheit für eine Klimaanlagenvorrichtung sowie Klimaanlagenvorrichtung mit der Inneneinheit

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Country Link
US (1) US20130043003A1 (de)
EP (1) EP2568226B1 (de)
JP (1) JP5518013B2 (de)
CN (1) CN102954539B (de)

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EP3348930A4 (de) * 2015-09-10 2018-09-12 Daikin Industries, Ltd. Wandmontierte klimaanlageninnenraumeinheit
EP3540318A4 (de) * 2016-11-09 2019-11-13 Mitsubishi Electric Corporation Innenraumeinheit für klimaanlage und klimaanlage

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CN104374005A (zh) * 2014-10-27 2015-02-25 广东美的制冷设备有限公司 壁挂式空调的室内机和空调
JP2016130606A (ja) * 2015-01-14 2016-07-21 株式会社富士通ゼネラル 空気調和機
JP2017062087A (ja) * 2015-09-25 2017-03-30 パナソニックＩｐマネジメント株式会社 空気調和装置
CN107829960B (zh) * 2016-09-16 2020-11-27 松下知识产权经营株式会社 气幕装置
CN106568127A (zh) * 2016-10-26 2017-04-19 珠海格力电器股份有限公司 空调器
JP6727415B2 (ja) * 2017-04-11 2020-07-22 三菱電機株式会社 室内機および空気調和機
JP6668552B2 (ja) * 2017-12-05 2020-03-18 日立ジョンソンコントロールズ空調株式会社 空気調和機の室内機
CN116221821A (zh) * 2019-03-29 2023-06-06 广东美的制冷设备有限公司 空调器
CN112944459A (zh) * 2021-02-24 2021-06-11 青岛海尔（胶州）空调器有限公司 空调器

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EP3540318A4 (de) * 2016-11-09 2019-11-13 Mitsubishi Electric Corporation Innenraumeinheit für klimaanlage und klimaanlage

Also Published As

Publication number Publication date
EP2568226B1 (de) 2017-09-27
CN102954539A (zh) 2013-03-06
CN102954539B (zh) 2015-04-01
EP2568226A3 (de) 2014-05-07
JP5518013B2 (ja) 2014-06-11
US20130043003A1 (en) 2013-02-21
JP2013040738A (ja) 2013-02-28

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