EP2557367A2 - Rechts-Links-Luftstromrichtungs-Steuerungsvorrichtung und Klimaanlagenvorrichtungs-Innenraumeinheit damit - Google Patents

Rechts-Links-Luftstromrichtungs-Steuerungsvorrichtung und Klimaanlagenvorrichtungs-Innenraumeinheit damit Download PDF

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Publication number
EP2557367A2
EP2557367A2 EP12179459A EP12179459A EP2557367A2 EP 2557367 A2 EP2557367 A2 EP 2557367A2 EP 12179459 A EP12179459 A EP 12179459A EP 12179459 A EP12179459 A EP 12179459A EP 2557367 A2 EP2557367 A2 EP 2557367A2
Authority
EP
European Patent Office
Prior art keywords
connecting rod
air
contact
rod body
control device
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
EP12179459A
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English (en)
French (fr)
Other versions
EP2557367A3 (de
EP2557367B1 (de
Inventor
Akimoto Suzuki
Shuhei Yokota
Masato Ishikawa
Masahide Kinami
Hisanori Ikeda
Youhei Koyanagi
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP2557367A2 publication Critical patent/EP2557367A2/de
Publication of EP2557367A3 publication Critical patent/EP2557367A3/de
Application granted granted Critical
Publication of EP2557367B1 publication Critical patent/EP2557367B1/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
    • 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
    • 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
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1433—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with electric motors
    • 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
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1473—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with cams or levers

Definitions

  • the present invention relates to right-left air flow direction control devices and air-conditioning apparatus indoor units provided therewith, and in particular, relates to a right-left air flow direction control device provided for an indoor unit of an air-conditioning apparatus and an air-conditioning apparatus indoor unit provided with the right-left air flow direction control device.
  • a right-left air flow direction control device provided for an indoor unit of an air-conditioning apparatus, includes a plurality of right-left deflectors rotatably arranged on a member (hereinafter, referred to as an "air outlet member") which provides an air outlet, a connecting rod (corresponding to a connecting member) which allows the right-left deflectors to rotate, and driving means that translates the connecting rod.
  • the right-left deflectors each include a planar portion, a rotation shaft which extends from the planar portion and serves as the center of rotation, and a connection shaft which extends from the planar portion such that the connection shaft is positioned at a predetermined distance from the rotation shaft.
  • the connecting rod has connection holes in which the connection shafts are rotatably placed. While the connection shafts are placed in the respective connection holes, therefore, the connecting rod functions as a link mechanism. Shift of the connecting rod in the longitudinal direction thereof allows the right-left deflectors to rotate.
  • the connecting rod includes pairs of stoppers (corresponding to extending portions) arranged at regular intervals. Each planar portion is partly positioned between the corresponding pair of stoppers.
  • each right-left deflector rotates (and the connecting rod is translated) in such a range that the planar portion does not contact the stoppers and the right-left deflector is rotatable (and the connecting rod is movable) until the planar portion contacts any one of the stoppers, thus determining a maximum rotation range (maximum translating range) (refer to Patent Literature 1, for example).
  • Patent Literature 1 While the planar portions are oriented in a direction (to the right or left) which is different from the direction toward the front side of the air outlet, a positive pressure acts on one surface of each planar portion and a negative pressure acts on the other surface thereof, so that the planar portion is pressed in a predetermined direction. While the planar portions are oriented to the front side (in the direction different from the direction to the right or left) (hereinafter, such referred to as "frontward air blowing"), substantially the same air flows are formed on both the surfaces of each planar portion. Disadvantageously, fluctuations (turbulence) of the air flows may cause vibrations of the planar portion, thus causing chatter. In other words, pressures acting on the surfaces of the planar portion are not equalized by the influence of fluctuations of the volume or velocity of blown air.
  • the present invention has been made in order to overcome the above-described disadvantage and provides a right-left air flow direction control device capable of suppressing vibrations of right-left deflectors caused upon frontward air blowing and an air-conditioning apparatus indoor unit provided with the right-left air flow direction control device.
  • An aspect of the present invention provides a right-left air flow direction control device placed in an air path of an air-conditioning apparatus indoor unit, the device including a plurality of right-left deflectors rotatably arranged on an air path member providing the air path, a connecting rod connected to the right-left deflectors to provide a link mechanism, the connecting rod being capable of being translated, and driving means, placed in the indoor unit, translating the connecting rod.
  • Each right-left deflector includes a rotation shaft, a base portion which is integrated with the rotation shaft and defines a plane perpendicular to the center of rotation of the rotation shaft, a planar portion which is integrated with the base portion and includes the rotation center of the rotation shaft, and a connection protrusion which extends from the base portion and is parallel to the rotation shaft.
  • the connecting rod includes a rod body provided with engaging means for connection to the driving means at one end of the rod body in the longitudinal direction of the connecting rod, connection holes arranged in the rod body such that the connection protrusions of the right-left deflectors extend through the connection holes while being prevented from detaching from the holes, rod body extended portions which are arranged in one side edge of the connecting rod so as to correspond to the connection holes in the longitudinal direction, respectively, and extend outwardly from the side edge, and contact raised parts arranged along the edges of the rod body extended portions, respectively, the contact raised parts being higher than the rod body.
  • the contact raised part of the connecting rod is in contact with the base portion of the right-left deflector and the other side edge (at which the contact raised part is not placed) of the connecting rod is in contact with the base portion of the right-left deflector. Since the connecting rod is held between the contact points while being prevented from detaching from the base portion by the connection protrusion, the connecting rod undergoes "three-point bending" in a plane perpendicular to the longitudinal direction.
  • An air-conditioning apparatus indoor unit provided with the right-left air flow direction control device according to this aspect of the present invention can therefore achieve a quiet operation.
  • each contact raised part is in contact with the corresponding base portion only while air is blown in a direction close to the frontward air blowing direction.
  • the contact raised part is not in contact with the base portion such that friction is eliminated.
  • the right-left deflector can be easily rotated.
  • the capacity of a driving motor, included in the driving means translating the connecting rod can be reduced.
  • a term "predetermined value approximate to a right angle” means not a specific value but a range in which a direction (hereinafter, "air blowing direction”) in which conditioned air is blown is substantially a "frontward direction”.
  • air blowing direction a direction in which conditioned air is blown
  • L the distance between the rotation center of each right-left deflector and a position at which the right-left deflector is connected to the connecting rod.
  • Figs. 1 to 5 explain a right-left air flow direction control device according to Embodiment 1 of the present invention.
  • Fig. 1 is a perspective view of the structure of the device.
  • Fig. 2 is a partly enlarged perspective view of the device.
  • Fig. 3(a) is a side elevational view of a component (right-left deflector).
  • Fig. 3(b) is a plan view of the component (right-left deflector).
  • Fig. 4 is a perspective view of another component (connecting rod).
  • Fig. 5(a) is a partly enlarged perspective view of the component (connecting rod).
  • Fig. 5(b) is a partly enlarged front view of the component (connecting rod).
  • Fig. 1 is a perspective view of the structure of the device.
  • Fig. 2 is a partly enlarged perspective view of the device.
  • Fig. 3(a) is a side elevational view of a component (right-left deflector).
  • FIG. 5(c) is a partly enlarged plan view of the component (connecting rod).
  • Fig. 5(d) is a partly enlarged sectional view of the component (connecting rod) when viewed from the side. Note that the figures are schematically illustrated and the present invention is not limited to the illustrated embodiment.
  • the right-left air flow direction control device 100 includes right-left deflectors 10 (including planar portions 12n, 12m, ..., 12j and rotation shafts 11 n, 11 m, ..., 11j which are illustrated), connecting rods 20 (including a connecting rod 20b which is illustrated) connected to the right-left deflectors 10 to provide a link mechanism, and driving means 30 that translates the connecting rods 20.
  • right-left deflectors 10 including planar portions 12n, 12m, ..., 12j and rotation shafts 11 n, 11 m, ..., 11j which are illustrated
  • connecting rods 20 including a connecting rod 20b which is illustrated
  • driving means 30 that translates the connecting rods 20.
  • the driving means 30 includes a driving motor 31, a first link rod 32 secured to a rotation shaft of the driving motor 31, and a second link rod 33 having one end pivotably connected to the first link rod 32, the other end of the rod 33 being pivotably connected to the connecting rod 20b. Accordingly, the driving means 30 is configured such that rotation of the driving motor 31 by a predetermined angle translates the connecting rod 20b (or moves the rod in the Y and X directions) by a predetermined distance.
  • each right-left deflector 10 includes the rotation shaft 11, a base portion 13 which defines a plane perpendicular to the center line (or the center A of rotation which will be referred to as the "rotation center A" hereinafter) of the rotation shaft 11, and the planar portion 12 which extends from the base portion 13 and defines a plane including the rotation center A (which is positioned between two surfaces of the planar portion 12).
  • the planar portion 12 has a notch 14 which extends from one side edge 12z (on the downstream side in the X direction) toward the rotation center A.
  • the notch 14 has a notch vertical edge 14z which is generally parallel to the rotation center A and a notch horizontal edge 14x which is generally parallel to the base portion 13 and is generally perpendicular to the rotation center A.
  • the base portion 13 includes a base end face 13z placed adjacent to an end (in the +X direction) thereof and a base central face 13x placed adjacent to the rotation center A (in the -X direction).
  • the base end face 13z slightly protrudes downward (in the Z direction) from the base central face 13x (such that a step is formed).
  • the base end face 13z may be omitted such that the base portion 13 has a flat or step-free lower surface.
  • a connection protrusion 15 protrudes from the base end face 13z of the base portion 13 toward the notch horizontal edge 14x such that the connection protrusion 15 is positioned at a predetermined distance from the rotation center A.
  • connection protrusion 15 includes a connection cylindrical portion 15x including the center B of the connection protrusion (hereinafter, "connection protrusion center B") parallel to the rotation center A and a bullet-shaped connection conical portion 15z extending from the connection cylindrical portion 15x.
  • the outside diameter of the bottom surface of the connection conical portion 15z is larger than that of the connection cylindrical portion 15x.
  • the height (length in the Z direction) of the connection cylindrical portion 15x, that is, the distance between the base end face 13z and the bottom surface of the connection conical portion 15z will be called “connection protrusion height H15".
  • connection protrusion height H15 connection protrusion height
  • the right-left deflector 10 is molded in one piece of synthetic resin.
  • the present invention does not limit the material of this component and the method of forming the component.
  • the portions may be formed of different materials and be joined together.
  • the connecting rod 20b includes a plate-shaped rod body 21 having a predetermined width (length in the X direction) throughout its length and including width increased portions arranged at regular intervals such that each portion has an increased width (or extends outward).
  • Engaging means 28 for connection to the driving means 30 is disposed at one end of the rod body 21 and engaging means 29 for connection to a connecting rod 20a is disposed at the other end thereof.
  • Each connecting rod 20 has connection holes 25 through which the connection protrusions 15 of the right-left deflectors 10 extend such that the holes are arranged at regular intervals in the longitudinal direction (corresponding to the Y direction) of the connecting rod 20.
  • the connecting rod 20a (refer to Fig.
  • the connecting rod 20a has the same structure as that of the connecting rod 20b.
  • the connecting rods 20 will be referred to as the "connecting rods 20".
  • each connection hole 25 is slightly larger than the outside diameter of the connection cylindrical portion 15x of the connection protrusion 15 and is smaller than the outside diameter of the bottom surface of the connection conical portion 15z thereof. Accordingly, while the connection protrusion 15 (or the connection cylindrical portion 15x) extends through the connection hole 25, the bottom surface of the connection conical portion 15z is engaged with part (corresponding to a rod body lower surface 21 b) surrounding the connection hole 25. Consequently, the connection protrusion 15 will not detach from the connection hole 25. In other words, the right-left deflectors 10 will not be disconnected from the connecting rods 20. The right-left deflectors 10 have the same distance between the rotation center A and the connection protrusion center B.
  • the right-left deflectors 10 are arranged at regular intervals.
  • the connection holes 25 are arranged at regular intervals in each connecting rod 20.
  • Each interval between the right-left deflectors 10 is equal to that between the connection holes 25.
  • the right-left deflectors 10 and the connecting rods 20 constitute a link mechanism.
  • L denote the distance between the rotation center A and the connection protrusion center B.
  • slits 26 are arranged on both sides of each connection hole 25 in the longitudinal direction of the connecting rod 20 so as to allow for entry (corresponding to insertion) of the connection protrusion 15 into the connection hole 25.
  • the length (dimension in the Y direction) of each slit 26 and the width (length in the X direction) thereof are not limited. In the case where some contrivance to allow the connection protrusion 15 to easily enter the connection hole 25 is made, the slits 26 may be omitted.
  • rod body extended portions 22 each extending (projecting) toward the upstream side (in the -X direction) so as to have a generally arcuate outline are arranged at regular intervals on a side edge (hereinafter, referred to as a "rod body side edge") 21 d of the rod body 21 on the upstream side (in the -X direction).
  • each rod body extended portion 22 has an arc-shaped edge extending between extending start points E1 and E2 on the rod body side edge 21d and a maximum extending point E3 is aligned with the connection hole 25 in a direction perpendicular to the longitudinal direction (Y direction) of the connecting rod 20.
  • each rod body extended portion 22 from the edge gradually increases (extends) from the extending start point E1 to the maximum extending point E3.
  • the height thereof gradually increases (extends) from the expansion start point E2 to the maximum expansion point E3.
  • the highest (extending) part in the maximum extending point E3 serves as contact raised part 23.
  • a face (hereinafter, referred to as a "rod body upper surface”) 21 c facing in the "-Z direction” of the rod body 21 has the contact raised parts 23 in the rod body extending portions 22.
  • the height (corresponding to the distance in the Z direction) between the rod body upper surface 21 c and a face (hereinafter, referred to as a “rod body lower surface”) 21 b facing in the "+Z direction” thereof will be referred to as the “rod body height H21”
  • the height (corresponding to the distance in the Z direction) between the rod body lower surface 21 b and the top of the contact raised part 23 will be referred to as a "securing protrusion height H23”.
  • the connection protrusion height H15 of the right-left deflector 10 and the rod body height H21 and the securing protrusion height H23 of the connecting rod 20 is expressed as "H21 ⁇ H15 ⁇ H23".
  • connection hole center C the center of each connection hole 25
  • contact center D the top (positioned at the highest level) of each contact raised part 23
  • a line (hereinafter, referred to as a “connecting rod contact center line L20") connecting the connection hole center C and the contact center D is perpendicular to the longitudinal direction (Y direction) of the rod body 21 and is parallel to the X direction.
  • the contact raised part 23 is mountain-shaped such that the height thereof gradually increases and the top thereof is a "point". The present invention is not limited to this shape.
  • the top may have a predetermined area (a predetermined length along the arc). In this case, the "contact center D" is at the center of the predetermined area.
  • the connecting rod 20 is molded in one piece of synthetic resin, serving as an elastic material (which can be bent and deformed). The present invention does not limit the material of this component and the method of forming the component.
  • the portions may be formed of different materials and be joined together.
  • Figs. 6 to 8 explain an action of the right-left air flow direction control device according to Embodiment 1 of the present invention.
  • Fig. 6 includes front views of part of the right-left air flow direction control device
  • Fig. 7 includes plan views thereof
  • Fig. 8 includes partly sectional side elevational views thereof.
  • (a) illustrates a front air blowing state
  • (b) illustrates a rightward air blowing state.
  • the right-left deflector 10 in the "frontward air blowing" state is seen in a direction from the inside of an air path 6 to an air outlet 7 (i.e., in the +X direction).
  • the planar portion 12 is seen in the foreground and the connection protrusion 15 is partly seen behind the planar portion 12.
  • the planar portion 12 is parallel to the "X-Z plane" and is visually recognized as a thin plate.
  • the connection conical portion 15z is partly visually recognized while the connection protrusion center B of the connection protrusion 15 is hidden by the planar portion 12.
  • the right-left deflector 10 in the "frontward air blowing" state is seen in a direction from the inside of the air path 6 to a lower surface 8b of a drain pan 8 (i.e., in the -Z direction). Accordingly, the planar portion 12 (illustrated in section) is visually recognized in the foreground, the connecting rod 20 is visually recognized as being positioned between the planar portion 12 and the base central face 13x, and the base central face 13x is visually recognized as being behind the planar portion 12. In this state, since the connecting rod 20 is placed in the notch 14 of the right-left deflector 10, the base end face 13z is hidden by the rod body extending portion 22.
  • connection center D on a surface face facing in the +Z direction which may be referred to as an "upper surface"
  • the connection protrusion center B of the right-left deflector 10 coincides with the connection hole center C of the connecting rod 20 and a line (hereinafter, referred to as a "right-left deflector center line L10" which is not illustrated) connecting the rotation center A and the connection protrusion center B of the right-left deflector 10 and the connecting rod contact center line L20 (line connecting the connection hole center C and the contact center D of the connecting rod 20) are positioned in the same "X-Z plane".
  • Fig. 8(a) is a partly sectional enlarged view of the right-left deflector 10 in the "frontward air blowing" state as seen in the Y direction. Accordingly, the base portion 13 is illustrated as extending horizontally and the connection protrusion center B is illustrated as extending vertically (in an up-down direction). Since the right-left deflector center line L10 and the connecting rod contact center line L20 are positioned in the same plane, the contact center D, serving as the top of the contact raised part 23 of the connecting rod 20, is in contact with the base central face 13x of the right-left deflector 10. In this state, the connecting rod 20 (rod body 21) is supported by the connection conical portion 15z while being prevented from detaching from the right-left deflector 10. The relationship between the connection protrusion height H15 of the right-left deflector 10 and the rod body height H21 and the securing protrusion height H23 of the connecting rod 20 is expressed as "H21 ⁇ H15 ⁇ H23".
  • a contact point G at which the rod body lower surface 21 b contacts the bottom surface of the connection conical portion 15z of the connection protrusion 15 functions as a fulcrum
  • the indoor unit 300 provided with the right-left air flow direction control device 100 achieves a quiet operation.
  • Fig. 6(b) illustrates the "rightward air blowing" state in which the connecting rod 20 in Fig. 6(a) has been translated to the left (or moved in the Y direction) in the figure. Accordingly, the planar portion 12 seen in the foreground is visually recognized as having a width. While the connection protrusion 15 seen in the background is not hidden by the planar portion 12, the connection conical portion 15z of the connection protrusion 15 is visually recognized. Note that a "leftward air blowing" state and the "rightward air blowing" state are symmetric with respect to the plane and exhibit the same action. Accordingly, explanation of the "leftward air blowing" state is omitted.
  • Fig. 7(b) illustrates the "rightward air blowing" state in which the connecting rod 20 in Fig. 7(a) has been translated to the left (or moved in the Y direction) in the figure.
  • the connecting rod contact center line L20 (the line connecting the connection hole center C and the contact center D) of the connecting rod 20 is positioned in the "X-Z plane”
  • the right-left deflector center line L10 (the line connecting the rotation center A and the connection protrusion center B) of the right-left deflector 10 is at a predetermined angle with the "X-Z plane”.
  • the contact center D (the top of the contact raised part 23) is positioned away from the base central face 13x.
  • Fig. 8(b) illustrates the "rightward air blowing" state in which the connecting rod contact center line L20 and the right-left deflector center line L10 form a predetermined angle ( ⁇ ) therebetween and the contact center D (the top of the contact raised part 23) is positioned away from the base central face 13x.
  • the rod body 21 is supported by the connection conical portion 15z such that it is prevented from detaching therefrom, therefore, the rod body 21 does not undergo bending deformation, contrary to the frontward air blowing, in the position corresponding to the rod body extended portion 22.
  • Fig. 8(b) illustrates the state in which any point in the contact raised part 23 (or any point between the extending start points E1 and E2) is not in contact with the base central face 13x. Accordingly, the rod body 21 undergoes no bending deformation. Specifically, the right-left deflector 10 and the connecting rod 20 are merely connected by engagement between the connection protrusion 15 and the connection hole 25 such that no friction acts between the right-left deflector 10 and the connecting rod 20.
  • vibrations of the right-left deflector 10 occur upon rightward air blowing, therefore, the vibrations will not be suppressed by the connecting rod 20 but blown air will cause a positive pressure acting on one surface of the planar portion 12 and a negative pressure acting on the other surface thereof in the rightward air blowing such that a force allowing rotation in one direction (for further rightward air blowing) acts on the planar portion 12. Consequently, vibrations as in the frontward air blowing will not occur.
  • vibrations will not occur in the rightward air blowing even under conditions that no friction acts between the right-left deflector 10 and the connecting rod 20 (the same applies to the leftward air blowing).
  • the air blowing direction is changed from the rightward air blowing direction to the frontward air blowing direction, the blown air causes the force allowing rotation in one direction (for further rightward air blowing) to act on the right-left deflector 10 and no friction acts between the right-left deflector 10 and the connecting rod 20. Consequently, the right-left deflector 10 is easily rotated.
  • the angle ( ⁇ ) between the connecting rod contact center line L20 and the right-left deflector center line L10 gradually decreases as the state approaches to the frontward air blowing state.
  • a point near the extending start point E1 in the contact raised part 23 is first come into contact with the base central face 13x (while the rod body upper surface 21c is in contact with the base end face 13z).
  • the point of contact between the contact raised part 23 and the base central face 13x gradually shifts toward a point near the maximum extending point E3 in the contact raised part 23.
  • the contact raised part 23 Since the height of the contact raised part 23 gradually increases with approach to the maximum extending point E3, the contact raised part 23 is gradually more tightly pressed against the base central face 13x as the state approaches to the frontward air blowing state. Consequently, the rod body 21 undergoes greater three-point bending (in the position corresponding to the rod body extended portion 22 in the "X-Z plane") as the state approaches to the frontward air blowing state.
  • the force (allowing the right-left deflector 10 to rotate in one direction (for rightward air blowing)), caused by the blown air, acting on the right-left deflector 10 gradually increases, while the friction acting between the right-left deflector 10 and the connecting rod 20 gradually decreases.
  • the right-left deflector 10 can be rotated (or the connecting rod 20 can be translated) without increase in capacity of the driving motor 31.
  • the force (allowing the right-left deflector 10 to rotate in one direction (for rightward air blowing)), caused by the blown air, acting on the right-left deflector 10 gradually decreases, while friction acting between the right-left deflector 10 and the connecting rod 20 gradually increases.
  • the force caused by the blown air is small under conditions that resistance caused by friction is high.
  • the right-left deflector 10 can be rotated (or the connecting rod 20 can be translated) without increase in capacity of the driving motor 31.
  • the above description relates to the case where the right-left air flow direction control device 100 is installed in the indoor unit 300 (Embodiment 3).
  • the present invention is not limited to this case.
  • the right-left air flow direction control device 100 may be installed in an indoor unit of a different type from the indoor unit 300.
  • the directions such as the up-down direction, may be interpreted as appropriate directions.
  • Fig. 9 includes partly sectional perspective views of components (connecting rods) according to modifications of the right-left air flow direction control device according to Embodiment 1 of the present invention.
  • Fig. 9(a) illustrates a connecting rod 20r in which the height of each contact raised part 23 is increased from a point between the extending start point E1 and the maximum extending point E3 as compared with the contact raised part 23 of the connecting rod 20 (refer to Fig. 5 ).
  • the contact raised part 23 is not provided in a region near the extending start point E1.
  • the value of "the angle ( ⁇ ) formed by the connecting rod contact center line L20 and the right-left deflector center line L10" when the contact raised part 23 is in contact with the base central face 13x of the right-left deflector 10 is smaller. Consequently, since the above-described friction acts in a narrower range (corresponding to a smaller angle ( ⁇ )) in which the state approaches to the frontward air blowing state, vibrations of the right-left deflector 10 are suppressed. In addition, since the above-described friction does not act in a wider range in which the state approaches to the rightward or leftward air blowing state, the connecting rod 20r is more easily translated. The present invention does not limit any way of increasing the height.
  • the height may be increased from any point between the extending start point E1 and the maximum extending point E3. Furthermore, the height may be linearly increased. Alternatively, the rate of increase in height may be set to low in a range near each of the extending start point E1 and the maximum extending point E3 and may be set to high in a range located midway between the extending start point E1 and the maximum extending point E3.
  • Fig. 9(b) illustrates a connecting rod 20s in which the top (positioned at the highest level) of each contact raised part 23 has a flat face having a predetermined area as compared with the contact raised part 23 of the connecting rod 20 (refer to Fig. 5 ).
  • the plane of contact between the top of the contact raised part 23 and the base central face 13x has the predetermined area, thus preventing partial wear of the top of the contact raised part 23. Consequently, the above-described friction will not decrease with long-term use.
  • the occurrence of vibrations of the right-left deflectors 10 can be suppressed even after long-term use.
  • Fig. 9(c) illustrates a connecting rod 20t in which the height of each contact raised part 23 is constant in the whole range (between the extending start points E1 and E2) as compared with the contact raised part 23 of the connecting rod 20 (refer to Fig. 5 ). Accordingly, the top of the contact raised part 23 is in contact with the base central face 13x in any air blowing direction from the frontward air blowing direction to the rightward air blowing direction (or the leftward air blowing direction). Consequently, friction acts between the right-left deflector 10 and the connecting rod 20 even in the rightward air blowing (or the leftward air blowing).
  • Figs. 10 to 12 explain a right-left air flow direction control device according to Embodiment 2 of the present invention.
  • Fig. 10(a) is a sectional view of the structure of the device when viewed from the side.
  • Fig. 10(b) is a partly enlarged sectional view thereof when viewed from the side.
  • Fig. 11 is a perspective view of a component (second connecting rod).
  • Fig. 12 includes plan views of components (a first right-left deflector and a second right-left deflector), Fig. 12 schematically explaining a rotating state of the components.
  • the same or equivalent portions as those in Embodiment 1 are designated by the same reference numerals and explanation is partly omitted.
  • the right-left air flow direction control device 200 is installed in the indoor unit 300 (Embodiment 3) instead of the right-left air flow direction control device 100 (Embodiment 1) and includes first right-left deflectors 40, second right-left deflectors 50 rotatably connected to the first right-left deflectors 40, a second connecting rod 60 that is translated to rotate the first right-left deflectors 40, and driving means 30 translating the second connecting rod 60.
  • each first right-left deflector 40 includes a component similar to the right-left deflector 10 and further includes support protrusions 16 and 17 to rotatably support the second right-left deflector 50.
  • the base portion 13 of the right-left deflector 10 is extended, the support protrusion 16 is placed so as to extend from a position closer to one end (in the +X direction) of the base portion 13 than the base end face 13z, the opening of the notch 14 is expanded to form a notch second horizontal edge 14w which is parallel to the notch horizontal edge 14x, and the support protrusion 17 is placed so as to extend from the notch second horizontal edge 14w.
  • a line (the center P of folding which will be referred to as the "folding center P" hereinafter) connecting the support protrusions 16 and 17 is parallel to the rotation center A.
  • Each second right-left deflector 50 includes a base portion 53, a connection shaft 51 positioned at one end (in the -X direction) of the base portion 53 such that the shaft extends upward (in the -Z direction), and a planar portion 52 positioned at the other end (in the +X direction) of the base portion 53.
  • the base portion 53 has a support recess 56 and another support recess 57, in which the support protrusions 16 and 17 are placed, respectively, near the planar portion 52 such that the support recess 56 is positioned in the upper surface (facing in the -Z direction) of the base portion 53 and the support recess 57 is positioned in the lower surface (facing in the +Z direction) thereof.
  • the base portion 53 further includes a second contact raised part 54, which is in contact with the notch horizontal edge 14x of the first right-left deflector 40, on the lower surface thereof such that the second contact raised part 54 is positioned near the connection shaft 51.
  • the second connecting rod 60 includes the rod body extended portions 22 of which the extent to which the rod body extended portion 22 extends is greater than that in the connecting rod 20, and further includes second connection holes 27, in each of which the connection shaft 51 of the second right-left deflector 50 is detachably placed, such that the holes are arranged in the rod body extended portions 22, respectively.
  • Each second connection hole 27 is an elongated hole having a length extending in the X direction. Specifically, the second connecting rod 60 is translated while being linked to the second right-left deflectors 50.
  • Fig. 10(a) and (b) illustrate the first right-left deflector 40 and the second right-left deflector 50 in the "frontward air blowing" state when seen in a direction from the air path 6 to the air outlet 7 (i.e., in the +X direction). Accordingly, the planar portion 12 and the planar portion 52 are parallel to the "X-Z plane".
  • the right-left deflector center line L10 i.e., the line connecting the rotation center A and the connection protrusion center B, the line being not illustrated
  • the connecting rod contact center line L20 i.e., the line connecting the connection hole center C and the contact center D, the line being not illustrated
  • the contact center D serving as the top of the contact raised part 23 of the second connecting rod 60
  • the rod body 21 undergoes three-point bending in a position corresponding to the rod body extended portion 22. Consequently, the first right-left deflector 40 and the second connecting rod 60 are substantially integrated by friction caused by force necessary for such bending deformation (or forces pressing against each other). Accordingly, the occurrence of vibrations of the first right-left deflector 40 which tend to occur upon frontward air blowing can be suppressed.
  • the second contact raised part 54 of the second right-left deflector 50 is in contact with the notch horizontal edge 14x of the first right-left deflector 40.
  • the first right-left deflector 40 and the second right-left deflector 50 are connected to each other in a substantially integrated fashion by the above-described contact, the first right-left deflector 40 suppresses vibrations of the second right-left deflector 50.
  • the contact between the base central face 13x of the first right-left deflector 40 and the contact center D of the contact raised part 23 of the second connecting rod 60 and the contact between the second contact raised part 54 of the second right-left deflector 50 and the notch horizontal edge 14x of the first right-left deflector 40 enable substantially integrated connection between the first right-left deflector 40, the second right-left deflector 50, and the second connecting rod 60. If the first right-left deflector 40 and the second right-left deflector 50 tend to vibrate due to the flow of air blown frontward, therefore, the occurrence of vibrations will be suppressed.
  • the indoor unit provided with the right-left air flow direction control device 200 can achieve a quiet operation.
  • the point of contact between the base central face 13x of the first right-left deflector 40 and the contact raised part 23 of the second connecting rod 60 gradually shifts from the contact center D to the extending start point E1 or E2, so that bending deformation on the rod body 21 is gradually reduced.
  • the base central face 13x of the first right-left deflector 40 is separated from the contact raised part 23 of the second connecting rod 60, so that the planar portion 12 enters a bending-free state in which no friction acts on this portion.
  • the distance between the folding center P and the rotation center A is longer than the distance between the connection protrusion center B and the rotation center A, the distance of movement of the folding center P in the Y direction is longer than that of the connection protrusion center B in the Y direction. Since the connection shaft 51 of the second right-left deflector 50 (extending through the second connection hole 27 of the second connecting rod 60) moves in the Y direction by the same distance as that of the second connecting rod 60 (the connection protrusion center B), the second right-left deflector 50 rotates about the folding center P in the opposite direction of the rotation of the first right-left deflector 40.
  • the second right-left deflector 50 therefore rotates from the frontward air blowing state by an angle " ⁇ ( ⁇ )", so that the first right-left deflector 40 and the second right-left deflector 50, which are substantially continuously connected, serve as a folded deflector assembly having a substantially V-shaped cross-section (refer to Fig. 12(b) ).
  • an upstream edge of the first right-left deflector 40 is substantially continuous with a downstream edge of the second right-left deflector 50, air disturbance (e.g., flow separation) on the edges can be suppressed as compared with the first right-left deflector 40 and the second right-left deflector 50 arranged apart from each other in the Y direction. Accordingly, smooth air flow is achieved to facilitate air sending.
  • the power consumption of a fan 5 can be reduced.
  • the second contact raised part 54 of the second right-left deflector 50 is positioned away from the notch horizontal edge 14x of the first right-left deflector 40. Accordingly, no friction acts between the second right-left deflector 50 and the first right-left deflector 40.
  • the contact raised part 23 of the second connecting rod 60 is positioned away from the base central face 13x of the first right-left deflector 40 and the second contact raised part 54 of the second right-left deflector 50 is positioned away from the notch horizontal edge 14x of the first right-left deflector 40.
  • the first right-left deflector 40, the second right-left deflector 50, and the second connecting rod 60 are not connected substantially integrally by friction, therefore, the first right-left deflector 40 and the second right-left deflector 50 do not vibrate because force allowing rotation in one direction acts on the first right-left deflector 40 and the second right-left deflector 50.
  • the case where the right-left air flow direction control device 200 is installed in the indoor unit 300 (Embodiment 3) has been described above.
  • the present invention is not limited to this case.
  • the right-left air flow direction control device 200 may be installed in an indoor unit of a different type from the indoor unit 300.
  • the directions, such as the up-down direction may be interpreted as appropriate directions.
  • Figs. 13 to 15 explain an air-conditioning apparatus indoor unit according to Embodiment 3 of the present invention.
  • Fig. 13 is a front view of the indoor unit.
  • Fig. 14 is a sectional view thereof when viewed from the side.
  • Fig. 15 is a perspective view of part (including and surrounding an air outlet) of the indoor unit. Note that the figures are schematically illustrated and the present invention is not limited to the illustrated embodiment. Referring to Figs.
  • the air-conditioning apparatus indoor unit 300 includes a body 1 having an air inlet 3 positioned in upper part of the body and the air outlet 7 positioned in lower part thereof, a front panel 2 openably covering the front of the body 1, the fan 5 which sucks indoor air through the air inlet 3 and provides the air path 6 leading to the air outlet 7, and a heat exchanger 4 positioned upstream of the fan 5 (i.e., adjacent to the air inlet 3).
  • the right-left air flow direction control device 100 that controls the air blowing direction for indoor air (hereinafter, referred to as "conditioned air") conditioned by the heat exchanger 4 relative to the horizontal direction (right-left direction) is placed near the air outlet 7 of the air path.
  • the air outlet 7, serving as an end of the air path 6, is provided with up-down deflectors 9 (including a front up-down deflector 9a and a rear up-down deflector 9b, which are collectively referred to as the "up-down deflectors 9") that control the air blowing direction for the conditioned air relative to the vertical direction (up-down direction).
  • the heat exchanger 4 includes a front heat exchanging portion 4a positioned parallel to the front panel 2, a front upper heat exchanging portion 4b positioned above the front of the fan 5, and a rear upper heat exchanging portion 4c positioned above the rear of the fan 5.
  • the drain pan 8 is placed under the front heat exchanging portion 4a.
  • the upper surface 8a of the drain pan 8 serves as a drain pan face that actually receives drain water.
  • the lower surface (corresponding to an "air path member") 8b of the drain pan 8 serves as the front surface of the air path 6.
  • the right-left air flow direction control device 100 includes the right-left deflectors 10a, 10b, ...., 10n (collectively or individually referred to as the "right-left deflectors 10") rotatably arranged on the lower surface 8b of the drain pan 8, the connecting rods 20a and 20b (collectively or individually referred to as the "connecting rods 20") rotating the right-left deflectors 10, and the driving means 30 translating the connecting rods 20. Since the right-left air flow direction control device 100 has a structure in which vibrations of the right-left deflectors 10 are suppressed upon frontward air blowing, a quiet operation can be achieved (which has been described in detail in Embodiment 1).
  • the horizontal direction when the indoor unit 300 is seen from the front is referred to as the "right-left direction” or the "Y direction”
  • a direction in which each rotation shaft 11 of the right-left air flow direction control device 100 extends and which extends substantially downward is referred to as the "downward direction” or the "Z direction”
  • the direction which is perpendicular to the Y direction and the Z direction and extends substantially downward is referred to as the "frontward direction” or the "X direction”.
  • the common description has been made with omission of the subscripts "a, b, ..., n" and those "a, b".

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
EP12179459.8A 2011-08-11 2012-08-07 Rechts-Links-Luftstromrichtungs-Steuerungsvorrichtung und Klimaanlagenvorrichtungs-Innenraumeinheit damit Active EP2557367B1 (de)

Applications Claiming Priority (1)

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JP2011175688A JP5404713B2 (ja) 2011-08-11 2011-08-11 左右風向調整装置およびこれを装備した空気調和機の室内機

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Cited By (3)

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CN103954027A (zh) * 2014-04-16 2014-07-30 李赵和 一种储物通风板
EP3792501A4 (de) * 2018-09-30 2021-08-11 Gree Electric Appliances, Inc. of Zhuhai Windleitplattenbewegungsvorrichtung und lüfter
EP4276367A1 (de) * 2022-05-10 2023-11-15 LG Electronics Inc. Klimaanlage

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JP2015055441A (ja) * 2013-09-13 2015-03-23 パナソニック株式会社 空気調和機
CN103528175B (zh) * 2013-10-09 2017-09-15 Tcl空调器(中山)有限公司 空调器及其导风装置
CN104566901A (zh) * 2013-10-28 2015-04-29 珠海格力电器股份有限公司 导风装置和空调器
CN103615793A (zh) * 2013-11-13 2014-03-05 青岛海尔软件有限公司 能够朝任意方向吹风的空调
CN103615794B (zh) * 2013-11-13 2016-04-20 青岛海尔软件有限公司 具有动态温度控制功能的空调
KR20150068900A (ko) * 2013-12-12 2015-06-22 가부시키가이샤 니프코 풍향조정장치
KR102484879B1 (ko) * 2015-12-24 2023-01-09 주식회사 위니아 공기조화기
CN209042711U (zh) * 2017-04-28 2019-06-28 三菱电机株式会社 空调装置的室内机

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CN103954027B (zh) * 2014-04-16 2016-06-01 姜卫民 一种储物通风板
EP3792501A4 (de) * 2018-09-30 2021-08-11 Gree Electric Appliances, Inc. of Zhuhai Windleitplattenbewegungsvorrichtung und lüfter
EP4276367A1 (de) * 2022-05-10 2023-11-15 LG Electronics Inc. Klimaanlage

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JP2013036724A (ja) 2013-02-21
RU2012132400A (ru) 2014-02-10
EP2557367A3 (de) 2018-04-11
EP2557367B1 (de) 2020-04-15
RU2508511C1 (ru) 2014-02-27
CN102954571B (zh) 2015-10-14
JP5404713B2 (ja) 2014-02-05

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