US20100307717A1 - Indoor unit of air conditioner - Google Patents

Indoor unit of air conditioner Download PDF

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Publication number
US20100307717A1
US20100307717A1 US12/783,115 US78311510A US2010307717A1 US 20100307717 A1 US20100307717 A1 US 20100307717A1 US 78311510 A US78311510 A US 78311510A US 2010307717 A1 US2010307717 A1 US 2010307717A1
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United States
Prior art keywords
flap
tilting
stopper
abut
lower flap
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.)
Abandoned
Application number
US12/783,115
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English (en)
Inventor
Tetsuo Yamashita
Yoshiyuki Nakagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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Filing date
Publication date
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Assigned to MITSUBISHI ELECTRIC CORPORATION reassignment MITSUBISHI ELECTRIC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NAKAGAWA, YOSHIYUKI, YAMASHITA, TETSUO
Publication of US20100307717A1 publication Critical patent/US20100307717A1/en
Abandoned legal-status Critical Current

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    • 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
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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
    • F24F13/1413—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre using more than one tilting member, e.g. with several pivoting blades
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/17—Details or features not otherwise provided for mounted in a wall

Definitions

  • the present invention relates to an indoor unit of an air conditioner and, more specifically, to an indoor unit of an air conditioner having a wind direction plate at a blowout port.
  • Patent Literature 1 JP-A-5-272799 (pp. 3-4, FIG. 1)
  • the indoor unit of the air conditioner disclosed in Patent Literature 1 is provided with a pair of blowout walls for opening and closing the blowout port, and the blowout walls are configured to be opened and closed in the vertical direction in a double-door system so as to meet at a midpoint of the opening height of the blowout port, whereby the dew condensation on the opening edge of the blowout port can be restrained.
  • an object of the present invention is to provide an indoor unit of an air conditioner which is adapted to prevent dew condensation on a blowout port itself and blowout walls (wind direction plates) installed at the blowout port.
  • An indoor unit of an air conditioner according to the present invention is a box member having blowing means and heat exchanging means stored therein, including:
  • a blowout port is formed on a front surface of the box member in a range nearer a lower surface and on the lower surface of the box member in a range nearer the front surface;
  • a fan casing which defines a blowout air duct from the blowing means to the blowout port;
  • front tilting means configured to tilt the front flap
  • lower tilting means configured to tilt the lower flap
  • control means configured to control the front tilting means and the lower tilting means so that the front flap and the lower flap stop at positions to form a smoothly continuing surface in the blowout air duct at a predetermined distance.
  • the indoor unit of the air conditioner according to the present invention is configured in such a manner that the control means controls the front tilting means and the lower lilting means to cause the front flap and the lower flap to stop at the positions to form the smoothly continuing surface in the blowout air duct at the predetermined distance from each other. Therefore, cooled air can be blown out in a predetermined direction (for example, substantially horizontal direction). At this time, since the front side and the back side of the front flap and the front side and the back side of the lower flap are all exposed to blown air (cold air), occurrence of the dew condensation is avoided.
  • a predetermined direction for example, substantially horizontal direction
  • FIG. 1 is an explanatory front view of an indoor unit of an air conditioner according to Embodiment 1 of the present invention.
  • FIG. 2 is a perspective view of the indoor unit shown in FIG. 1 .
  • FIG. 3 is a side cross-sectional view of the indoor unit shown in FIG. 1 .
  • FIG. 4 is a see-through perspective view illustrating part of the indoor unit shown in FIG. 1 .
  • FIG. 5 shows a flowchart showing actions of vertical wind direction plates during a cooling operation of the indoor unit shown in FIG. 1 .
  • FIG. 6 shows side views illustrating the actions of the vertical wind direction plates when starting the cooling operation of the indoor unit shown in FIG. 1 .
  • FIG. 7 shows side views illustrating the actions of the vertical wind direction plates when stopping the cooling operation of the indoor unit shown in FIG. 1 .
  • FIG. 8 is a flowchart showing the actions of the vertical wind direction plates during a heating operation of the indoor unit shown in FIG. 1 .
  • FIG. 9 shows side views illustrating the actions of the vertical wind direction plates when starting the heating operation of the indoor unit shown in FIG. 1 .
  • FIG. 10 shows side views illustrating the actions of the vertical wind direction plates when stopping the heating operation of the indoor unit shown in FIG. 1 .
  • FIG. 11 is an exploded perspective view illustrating components which constitute a first example of a tilting mechanism of the indoor unit shown in FIG. 1 .
  • FIG. 12 is a side view showing the action of the components of the first example of the tilting mechanism shown in FIG. 11 .
  • FIG. 13 is a side view showing the action of the components of the first example of the tilting mechanism shown in FIG. 11 .
  • FIG. 14 is a side view showing the action of the components of the first example of the tilting mechanism shown in FIG. 11 .
  • FIG. 15 is an exploded perspective view illustrating components which constitute a second example of a tilting mechanism of the indoor unit shown in FIG. 1 .
  • FIG. 16 is a side view showing the action of the components of the second example of the tilting mechanism shown in FIG. 15 .
  • FIG. 17 is a side view showing the action of the components of the second example of the tilting mechanism shown in FIG. 15 .
  • FIG. 18 is a side view showing the action of the components of the second example of the tilting mechanism shown in FIG. 15 .
  • FIG. 1 to FIG. 10 are drawings for explaining an indoor unit of an air conditioner according to Embodiment 1 of the present invention.
  • FIG. 1 is a front view
  • FIG. 2 is a perspective view
  • FIG. 3 is a side cross-sectional view
  • FIG. 4 is a partly see-through perspective view
  • FIG. 5 is a flowchart showing actions of vertical wind direction plates during a cooling operation
  • FIG. 6 shows side views schematically illustrating the actions of the vertical wind direction plates when starting the cooling operation
  • FIG. 7 shows side views schematically illustrating the actions of the vertical wind direction plates when stopping the cooling operation
  • FIG. 8 is a flowchart showing the actions of the vertical wind direction plates during a heating operation
  • FIG. 9 shows side views schematically illustrating the actions of the vertical wind direction plates when starting the heating operation
  • FIG. 10 shows side views schematically illustrating the actions of the vertical wind direction plates when stopping the heating operation.
  • the respective drawings are illustrated schematically, and the present invention is not limited to illustrated modes.
  • an indoor unit 1 of an air conditioner (hereinafter, referred to as “indoor unit”) 1 includes a box-shaped main body 10 , a blowing fan 20 stored in the interior of the main body 10 , a heat exchanger 30 arranged so as to oppose part of the blowing fan 20 , and a front panel (precisely, it is the same as a design panel which also covers part of side surfaces of the main body 10 ) 40 covering an opening on the front surface (the left side in FIG. 3 ) of the main body 10 .
  • the main body 10 is configured to be installed with a back surface (the right side in FIG. 3 ) thereof placed on an indoor wall or the like, and includes an inlet port 50 for sucking indoor air on an upper surface (the upper side in FIG. 3 ), and a fan casing 60 for defining a blowout air duct from the blowing fan 20 in the interior thereof.
  • the fan casing 60 is a space having a predetermined width and being surrounded by a front casing member (the same as a front casing panel) 61 arranged on the side of the opening on the front surface, a rear casing member (the same as a rear casing panel) 62 arranged on the back surface side, and a partition wall 80 which constitutes a side surface (see FIG. 11 ). Then, a space formed between a terminal end of the fan casing 60 , that is, a side edge on the front surface side of the lower surface (the lower side in FIG. 3 ) and a side edge on the lower side of the front panel 40 corresponds to a blowout port 63 .
  • a front flap 100 and a lower flap 200 are tiltably provided on the blowout port 63 on the front surface side and the rear surface side respectively as the vertical wind direction plates.
  • Front flap arms 101 are provided on a back side 100 b of the front flap 100 at predetermined intervals, and a front flap revolving shaft 102 is provided on the front flap arms 101 .
  • the front casing member 61 is provided with casing flanges 64
  • casing bearings 65 are provided on the casing flanges 64 .
  • the front flap revolving shaft 102 is rotatably supported by the casing bearings 65 .
  • lower flap arms 201 are provided on a back side 200 b of the lower flap 200 at predetermined intervals, and a lower flap revolving shaft 202 is provided on the lower flap arms 201 .
  • casing flanges are provided at the blowout port 63 , and a casing bearing is provided on the casing flanges.
  • the lower flap revolving shaft 202 is rotatably supported by the casing bearings.
  • a front stopper 160 configured to limit a tilting range when the front flap 100 is tilted toward the inside of the fan casing 60 (counterclockwise), and a lower stopper 260 configured to limit a tilting range when the lower flap 200 is tilted toward the outside of the fan casing 60 (counterclockwise) are also provided.
  • the structures of the front stopper 160 and the lower stopper 260 are not limited thereto, and a structure in which the front flap 100 and the lower flap 200 come into abutment with each other, or a structure in which a projection or a shoulder provided on the front flap revolving shaft 102 and a projection or a shoulder provided on the lower flap revolving shaft 202 come into abutment with the front flap 100 and the lower flap 200 respectively is also applicable.
  • Control means is configured to control a tilting mechanism (not shown) to cause the front flap 100 and the lower flap 200 to be tilted independently.
  • the tilting mechanism will be described separately in detail.
  • the control means causes the front flap 100 to take a position substantially parallel to the front panel 40 when the operation is stopped.
  • the back side 100 b of the front flap 100 is positioned on the side of the fan casing 60
  • the front side 100 a of the front flap 100 is positioned outside (front side) so as to be visible from the indoor.
  • the lower flap 200 takes a position substantially parallel to a lower surface 70 , and the back side 200 b of the lower flap 200 is positioned on the side of the fan casing 60 and the front side 200 a of the lower flap 200 is positioned outside (lower side) so as to be visible from the indoor.
  • the control means when a signal indicating that the cooling operation is to be started is supplied to the control means (SS 1 in FIG. 5) , the control means firstly causes the lower flap revolving shaft 202 to tilt in a direction to bring the lower flap into abutment with the lower stopper 260 (counterclockwise in FIG. 6 ) and brings the lower flap into abutment with the lower stopper 260 (S 1 in FIG. 5 ).
  • control means causes the lower flap revolving shaft 202 to rotate in a direction to move the lower flap 200 away from the lower stopper 260 (clockwise) for a predetermined angle A 2 and causes the lower flap 200 to stop in the fan casing 60 (S 2 in FIG. 5) .
  • the lower flap 200 is positioned substantially midway between the front casing member 61 and the rear casing member 62 , and is fixed at a position with the lower flap surface 200 a being at an upper location and inclined by a predetermined angle with respect to the horizontal direction.
  • control means then causes the front flap revolving shaft 102 to rotate in a direction to bring the front flap 100 into abutment with the front stopper 160 (counterclockwise) and brings the front flap 100 into abutment with the front stopper 160 (S 3 in FIG. 5) .
  • the front flap revolving shaft 102 is rotated via the clutch mechanism (slipping mechanism) in the same manner as the lower flap revolving shaft 202 , it is not rotated excessively after the front flap 100 has come into abutment with the front stopper 160 . Therefore, even though the position of the front flap 100 is changed (such as slightly tilting) when the operation is stopped, the accurate positioning is achieved by the abutment with the front stopper 160 .
  • control means further causes the front flap revolving shaft 102 to rotate in a direction to move the front flap 100 a predetermined angle A 4 away from the front stopper 160 (clockwise) and causes the front flap 100 to stop in the fan casing 60 (S 4 in FIG. 5) .
  • the front flap 100 is positioned substantially midway between the front casing member 61 and the rear casing member 62 , and is fixed at a position with the front side 100 a faced downside and inclined at a smaller angle than the angle of the lower flap with respect to the horizontal direction.
  • the lower flap 200 and the front flap 100 are arranged smoothly without a level difference so as to form a substantially identical curved surface (precisely, a slightly bent surface) even though there exists a gap between the terminal ends thereof. Therefore, air flowing along the front side 200 a of the lower flap 200 continues to flow along the back side 100 b of the front flap 100 , and air flowing along the back side 200 b of the lower flap 200 continues to flow along the front side 100 a of the front flap 100 .
  • the front side 200 a and the back side 200 b of the lower flap 200 and the front side 100 a and the back side 100 b of the front flap 100 are all exposed to the cooled airflow, so that dew condensation thereon is avoided. Therefore, occurrence of dew dropping in indoors is avoided, and improvement of comfort is achieved.
  • the cooled air is blown out in the substantially horizontal direction by the lower flap 200 and the front flap 100 which form the substantially identical curved surface in the substantially horizontal direction, cold air reaches an area far from the indoor unit 1 without increasing a load of the blowing fan 20 , so that a wide range in the indoors can be cooled.
  • the lower flap 200 is caused to stop in the blowout air duct after having brought into abutment with the lower stopper 260
  • the front flap 100 is caused to stop in the blowout air duct after having brought into abutment with the front stopper 160 .
  • the present invention is not limited thereto, and either one of operations may be implemented first. For example, bringing the lower flap 200 and the front flap 100 into abutment with the lower stopper 260 and the front stopper 160 respectively and then causing both to stop in the blowout air duct, and bringing the front flap 100 into abutment with the front stopper 160 and then bringing the lower flap 200 into abutment with the lower stopper 260 are both applicable.
  • a step of bringing the lower flap 200 or the front flap 100 into abutment respectively with the lower stopper 260 and the front stopper 160 may be omitted.
  • actions when ending the cooling operation will be described.
  • the actions when ending the cooling operation are performed by reversing the actions when starting the cooling operation.
  • FIG. 7( a ) is a drawing which is the same as FIG. 6( e ), and shows a position immediately before ending the cooling operation.
  • the control means when a signal indicating that the cooling operation is to be ended is supplied to the control means (SS 2 in FIG. 5) , the control means firstly causes the front flap revolving shaft 102 to rotate in a direction to bring the front flap 100 into abutment with the front stopper 160 (counterclockwise), and brings the front flap 100 into abutment with the front stopper 160 (S 5 in FIG. 5 ).
  • the control means causes the front flap revolving shaft 102 to rotate in a direction to move the front flap 100 a predetermined angle A 6 away from the front stopper 160 (clockwise), and causes the front flap 100 to stop at a position parallel to the front panel 40 (S 6 in FIG. 5) .
  • control means then causes the lower flap revolving shaft 202 to rotate in a direction to bring the lower flap 200 into abutment with the lower stopper 260 , and brings the lower flap 200 into abutment with the lower stopper 260 (S 7 in FIG. 5) .
  • control means causes the lower flap revolving shaft 202 to rotate in a direction to move the lower flap 200 a predetermined angle A 8 away from the lower stopper 260 (clockwise) and causes the lower flap 200 to stop at a position parallel to the lower surface 70 (S 8 in FIG. 5) .
  • the front flap 100 and the lower flap 200 are tilted after having come into abutment with the front stopper 160 and the lower stopper 260 respectively in the same manner as the actions when starting the cooling operation, the front flap 100 and the lower flap 200 stop at proper positions when the operation is stopped (see FIG. 6( a )) even though their positions are changed (slightly tilting, etc.) during the operation. Therefore, the blowout port 63 of the indoor unit 1 is closed, and a good appearance is maintained.
  • the order of the respective steps is not limited, and the step of bringing the lower flap 200 or the front flap 100 into abutment with the lower stopper 260 or the front stopper 160 respectively may be omitted in the same manner as the actions when starting the cooling operation.
  • FIG. 9( a ) shows the state when the operation is stopped, and is the same as FIG. 6( a ).
  • the control means causes the lower flap revolving shaft 202 to rotate in a direction to move the lower flap 200 away from the lower stopper 260 (clockwise) by a predetermined angle B 2 and causes the lower flap 200 to stop at a position extending across the blowout port 63 (S 12 in FIG. 8) .
  • the lower flap 200 is substantially parallel with an imaginary plane formed by smoothly extending the rear casing member (inclined in such a way that the front side becomes downward) with the back side 200 b of the lower flap 200 being located upward.
  • control means causes the front flap revolving shaft 102 to tilt in a direction to bring the front flap 100 into abutment with the front stopper 160 (counterclockwise), and brings the front flap 100 into abutment with the front stopper 160 (S 13 in FIG. 8) .
  • control means causes the front flap revolving shaft 102 to tilt in a direction to move the front flap 100 a predetermined angle B 4 away from the front stopper 160 (clockwise) and causes the front flap 100 to stop at a position opposing the lower flap 200 and approaching thereto as it goes downstream of the airflow ( 814 in FIG. 8) .
  • the front flap 100 is inclined to a larger extent than the lower flap 200 (the same as the position closer to the perpendicular direction), and the front side 100 a is positioned downside. Therefore, an air duct which becomes narrower as it goes downstream of the air flow is defined by the front side 100 a of the front flap 100 and the back side 200 b of the lower flap 200 .
  • the order of the respective steps is not limited, and the step of bringing the lower flap 200 or the front flap 100 into abutment with the lower stopper 260 or the front stopper 160 respectively may be omitted in the same manner as the actions when starting the cooling operation.
  • the actions when ending the heating operation are in conformity with the actions when ending the cooling operation (see FIG. 7 ).
  • FIG. 10( a ) is a drawing which is the same as FIG. 9( e ), and shows a position immediately before ending the heating operation.
  • the control means when a signal indicating that the heating operation is to be ended is supplied to the control means (SS 12 in FIG. 8) , the control means firstly causes the front flap revolving shaft 102 to rotate in a direction to bring the front flap 100 into abutment with the front stopper 160 (counterclockwise), and brings the front flap 100 into abutment with the front stopper 160 (S 15 in FIG. 8 ).
  • control means causes the front flap revolving shaft 102 to rotate in a direction to move the front flap 100 a predetermined angle B 6 away from the front stopper 160 (clockwise) and cause the front flap 100 to stop at a position parallel to the front panel 40 (S 16 in FIG. 8) .
  • control means then causes the lower flap revolving shaft 202 to rotate in a direction to bring the lower flap 200 into abutment with the lower stopper 260 , and brings the lower flap 200 into abutment with the lower stopper 260 (S 17 in FIG. 8) .
  • control means causes the lower flap revolving shaft 202 to rotate in a direction to move the lower flap 200 a predetermined angle B 8 away from the lower stopper 260 (clockwise) and causes the lower flap 200 to stop at a position parallel to the lower surface 70 (S 18 in FIG. 8) .
  • the front flap 100 and the lower flap 200 are tilted after having come into abutment with the front stopper 160 and the lower stopper 260 respectively in the same manner as the actions when starting the heating operation, the front flap 100 and the lower flap 200 stop at proper positions when the operation is stopped (see FIG. 6( a )) even though their positions are changed (slightly tilting, etc.) during the operation. Therefore, the blowout port 63 of the indoor unit 1 is closed, and the good appearance is maintained.
  • the order of the respective steps is not limited, and the step of bringing the lower flap 200 or the front flap 100 into abutment with the lower stopper 260 or the front stopper 160 respectively may be omitted in the same manner as the actions when starting the cooling operation.
  • FIG. 11 to FIG. 14 are drawings for explaining the first example of the tilting mechanism.
  • FIG. 11 is an exploded perspective view showing components thereof
  • FIG. 12 to FIG. 13 are side views showing actions of the components of the first example of the tilting mechanism.
  • the front flap 100 and the lower flap 200 are tilted independently, and a first stepping motor 190 for tilting the front flap 100 and a second stepping motor 290 for tilting the lower flap 200 are stored in a motor case 90 provided on the partition wall 80 of the main body 10 .
  • the tilting mechanism will be described in detail below.
  • one of the front flap arms 101 provided on the front flap 100 which is positioned nearest to the partition wall 80 , is provided with a first braking member 110 so as to tilt integrally therewith.
  • the first braking member 110 includes a shaft portion 111 having a circular shape in cross section, a disk portion 112 provided on the shaft portion 111 , an arcuate-shaped recessed portion 113 formed on the disk portion 112 , and an end portion 114 connected to a tilt shaft of the first stepping motor 190 .
  • One of the lower flap arms 201 provided on the lower flap 200 which is positioned nearest to the partition wall 80 , is provided with a second drive member 210 so as to tilt integrally therewith.
  • the second drive member 210 includes a shaft portion 211 having a circular shape in cross section, a drive flange 212 provided on the shaft portion 211 , a drive pin 213 provided at a distal end of the drive flange 212 , and an end portion 214 connected to a tilt shaft of the second stepping motor 290 .
  • the second drive member 210 is connected to a second braking member 240 via a second coupling member 230 .
  • the second coupling member 230 includes a coupling arm 231 , and coupling pin holes 233 , 234 provided respectively at both end portions of the connecting arm 231 .
  • the second braking member 240 includes a shaft portion 241 , a fan-shaped portion 242 formed into a fan shape having a pivot at a center of the shaft portion 241 , a braking flange 243 provided on the shaft portion 241 , and a braking pin 244 provided at a distal end of the braking flange 243 .
  • the partition wall 80 is provided with a partition wall bearing 81 configured to tiltably support the shaft portion 111 of the first braking member 110 , a partition wall bearing 82 configured to tiltably support the shaft portion 211 of the second drive member 210 on the side of the partition wall 80 , and a partition wall bearing 84 configured to tiltably support the shaft portion 241 of the second braking member 240 .
  • the partition wall bearing 84 is positioned between the partition wall bearing 81 and the partition wall bearing 82 so as to be arranged into a triangle shape.
  • the motor case 90 is provided with a bearing (not shown) configured to tiltably support the shaft portion 241 of the second braking member 240 on the side of the first stepping motor 190 .
  • a bearing (not shown) configured to tiltably support the shaft portion 241 of the second braking member 240 on the side of the first stepping motor 190 .
  • this bearing and the partition wall bearing 84 may be omitted.
  • the motor case 90 is formed with a through hole 98 which allows a nut (not shown) for securing the same to the partition wall 80 to penetrate therethrough, and the partition wall 80 is formed with a partition wall female screw 89 at a position corresponding to the through hole 98 .
  • the first stepping motor 190 and the second stepping motor 290 are provided in the motor case 90 by a known measure.
  • the shaft portion 111 of the first braking member 110 connected to the front flap 100 is pivotably supported by the partition wall bearing 81
  • the shaft portion 211 of the second drive member 210 connected to the lower flap 200 is pivotably supported by the partition wall bearing 82
  • the shaft portion 241 of the second braking member 240 is pivotably supported by the partition wall bearing 84 and a bearing (not shown) provided on the motor case 90 , respectively.
  • the coupling pin hole 233 and the coupling pin hole 234 of the second coupling member 230 are pivotably engaged with the drive pin 213 of the second drive member 210 and the braking pin 244 of the second braking member 240 , respectively.
  • the arcuate-shaped recessed portion 113 of the first braking member 110 of the front flap 100 stands upright substantially perpendicularly.
  • the drive flange 212 of the second drive member 210 of the first braking member 110 stands upright, and pushes the second coupling member 230 upward. Therefore, the fan-shaped portion 242 of the second braking member 240 lies substantially horizontally.
  • an arcuate surface (depressed surface) of the arcuate-shaped depressed portion 113 and an arcuate surface (projected surface) of the fan-shaped portion 242 come into abutment with each other. Therefore, even when an attempt is made to tilt the front flap 100 , the abutment prevents the tilting movement, and hence the front flap 100 cannot be tilted. In other words, the front flap 100 is brought into a locked state.
  • the front flap 100 can be lied down substantially horizontally.
  • a distal end of the fan-shaped portion 242 of the second braking member 240 comes into abutment with the disk portion 112 of the first braking member 110 , so that the tilting movement is prevented. Since a space is provided between the both in the drawing, the tilting movement is made by an amount corresponding to the space, precisely speaking (see FIG. 6( e )),
  • the indoor unit 1 includes the tilting mechanism, and the front flap 100 or the lower flap 200 is prevented from tilting inadvertently by locking or unlocking between the first braking member 110 and the second braking member 240 . Therefore, even when the front flap 100 and the lower flap 200 are arranged in proximity, interference does not occur when the both are tilted.
  • the blowout port 63 can be covered by the front flap 100 and the lower flap 200 with a relatively narrow gap formed therebetween.
  • the design characteristics of the blowout port 63 is secured by the front side 100 a of the front flap 100 and the front side 200 a of the lower flap 200 .
  • first braking member 110 and the second braking member 240 are in abutment with each other over a wide range of the arcuate abutment surface, it is also possible to form the arcuate-shaped depressed portion 113 of the first braking member 110 into a flat surface so that the first braking member 110 comes into partly abutment with the second braking member 240 only when the first braking member 110 is tilted at a predetermined angle.
  • the disk portion 112 does not have to be circular because what is essential is just to have an abutment surface with respect to the second braking member 240 .
  • FIG. 15 to FIG. 18 are drawings for explaining the second example of the tilting mechanism.
  • FIG. 15 is an exploded perspective view showing components thereof, and
  • FIG. 16 to FIG. 17 are side views showing the actions of the components of the second example of the tilting mechanism.
  • one of the front flap arms 101 provided on the front flap 100 which is positioned nearest to the partition wall 80 , is provided with a first braking member 120 so as to tilt integrally therewith.
  • the first braking member 120 includes a shaft portion 121 having a circular shape in cross section, a cam portion 122 provided on the shaft portion 121 , and an end portion 124 coupled to a tilt shaft of the first stepping motor 190 .
  • the cam portion 122 in this example is an end surface cam formed with a shouldered portion 123 , and has a large diameter portion 122 a and a small diameter portion 122 b having a smaller distance from a center of the shaft portion 121 than the large diameter portion 122 a with the shouldered portion 123 interposed therebetween as a boundary.
  • One of the lower flap arms 201 provided on the lower flap 200 which is positioned nearest to the partition wall 80 , is provided with a second braking member 220 so as to tilt integrally therewith.
  • the second braking member 220 includes a shaft portion 221 having a circular shape in cross section, a cam portion 222 provided on the shaft portion 221 , and an end portion 224 coupled to a tilt shaft of the second stepping motor 290 .
  • the cam portion 222 in this example is an end surface cam where a shouldered portion 223 is formed, and has a large diameter portion 222 a and a small diameter portion 222 b having a smaller distance from a center of the shaft portion 221 than the large diameter portion 222 a with the shouldered portion 223 being a boundary.
  • a seesaw member 300 has an arm portion 304 and a pivot shaft 303 provided at a center of the arm portion 304 .
  • one of distal ends of the arm portion 304 is referred to as a first distal end 301
  • the other end is referred to as a second distal end 302 .
  • the partition wall 80 is provided with the partition wall bearing 81 configured to tiltably support the shaft portion 121 of the first braking member 120 , the partition wall bearing 82 configured to tiltably support the shaft portion 221 of the second braking member 220 , and a partition wall bearing 83 configured to tiltably support the pivot shaft 303 of the seesaw member 300 on the side of the partition wall 80 .
  • pivot shaft 303 of the seesaw member 300 on the side of the motor case 90 is tiltably supported by a bearing (not shown) provided on the motor case 90 , one of the bearing and the partition wall bearing 83 may be omitted.
  • the small diameter portion 122 b of the first braking member 120 connected integrally to the front flap 100 is positioned on the upper side
  • the large diameter portion 222 a of the second braking member 220 connected integrally to the lower flap 200 is positioned on the upper side
  • the second distal end 302 of the seesaw member 300 comes into abutment with the large diameter portion 222 a
  • the first distal end 301 of the seesaw member 300 is in abutment with the small diameter portion 122 b of the first braking member 120 or opposes the same with a small gap therebetween.
  • the shouldered portion 123 of the first braking member 120 comes into abutment with the first distal end 301 of the seesaw member 300 to cause the seesaw member 300 to tilt clockwise.
  • the front flap 100 cannot be tilted counterclockwise. In other words, the front flap 100 is brought into the locked state.
  • the second distal end 302 of the seesaw member 300 is allowed to tilt (pivot) until it comes into abutment with the small diameter portion 222 b of the second braking member 220 .
  • FIG. 18 if the first stepping motor 190 is activated to tilt the front flap 100 counterclockwise, the front flap 100 takes a position lying down substantially horizontally (see FIG. 6( e )).
  • the seesaw member 300 is allowed to tilt (pivot) as described above, when the first braking member 120 tilts counterclockwise, the large diameter portion 122 a of the cam portion 122 comes into abutment with the second distal end 302 of the seesaw member 300 to tilt the seesaw member 300 . In other words, a state in which the lock of the tilting movement of the front flap 100 is released (the same as “unlock”) is resulted. At this time, the second distal end 302 of the seesaw member 300 is in abutment with the small diameter portion 222 b of the second braking member 220 or opposes the same with a small gap therebetween.
  • the first distal end 301 of the seesaw member 300 comes into abutment with the shouldered portion 223 of the second braking member 220 to cause the seesaw member 300 to tilt counterclockwise.
  • the lower flap 200 cannot be tilted counterclockwise. In other words, the lower flap 200 is in the locked state.
  • the indoor unit of the present invention since the dew condensation on the vertical wind direction plates can be prevented during the cooling operation, the indoor unit of the present invention can be widely used as the indoor unit of the various types of air conditioners for home use and commercial use.

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)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Duct Arrangements (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air Conditioning Control Device (AREA)
US12/783,115 2009-06-08 2010-05-19 Indoor unit of air conditioner Abandoned US20100307717A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009137648A JP5279622B2 (ja) 2009-06-08 2009-06-08 空気調和機の室内機
JP2009-137648 2009-06-08

Publications (1)

Publication Number Publication Date
US20100307717A1 true US20100307717A1 (en) 2010-12-09

Family

ID=42732767

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US12/783,115 Abandoned US20100307717A1 (en) 2009-06-08 2010-05-19 Indoor unit of air conditioner

Country Status (4)

Country Link
US (1) US20100307717A1 (enrdf_load_stackoverflow)
EP (1) EP2273208B1 (enrdf_load_stackoverflow)
JP (1) JP5279622B2 (enrdf_load_stackoverflow)
CN (1) CN101907323B (enrdf_load_stackoverflow)

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US20140308887A1 (en) * 2013-04-11 2014-10-16 Samsung Electronics Co., Ltd. Blade assembly and air conditioner having the same
US9255722B2 (en) * 2012-10-10 2016-02-09 Lg Electronics Inc. Air conditioner having a movable panel that opens and closes discharge ports
US9759445B2 (en) 2012-10-10 2017-09-12 Lg Electronics Inc. Air conditioner
CN107355872A (zh) * 2017-08-21 2017-11-17 广东美的制冷设备有限公司 空调器和散风部件
CN108131811A (zh) * 2017-12-19 2018-06-08 珠海格力电器股份有限公司 室内机及应用其的空调器
US20180231022A1 (en) * 2017-02-10 2018-08-16 Samsung Electronics Co., Ltd. Air conditioner
CN110822550A (zh) * 2018-07-23 2020-02-21 青岛海尔空调器有限总公司 一种室内机及空调器
US11054152B2 (en) * 2016-10-21 2021-07-06 Samsung Electronics Co., Ltd. Air conditioner
WO2022030947A1 (en) * 2020-08-07 2022-02-10 Lg Electronics Inc. Indoor unit of air conditioner
EP4001780A1 (en) * 2020-11-13 2022-05-25 LG Electronics Inc. Air conditioner
US20230366582A1 (en) * 2021-01-29 2023-11-16 Daikin Industries, Ltd. Air blower
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JP6004166B2 (ja) * 2012-07-02 2016-10-05 パナソニックＩｐマネジメント株式会社 空気調和機
CN103982996B (zh) * 2013-02-08 2017-05-10 珠海格力电器股份有限公司 空调器
JP5887316B2 (ja) * 2013-08-30 2016-03-16 日立アプライアンス株式会社 空気調和機の室内機及び空気調和機
CN106382733B (zh) * 2016-10-17 2022-01-28 珠海格力电器股份有限公司 出风板固定装置、出风板固定结构和空调器
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CN108332287A (zh) * 2018-01-04 2018-07-27 珠海格力电器股份有限公司 空调室内机及其控制方法、空调器
CN110631162B (zh) * 2018-06-25 2024-09-03 珠海格力电器股份有限公司 新风装置及具有其的空调室内机
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Publication number Priority date Publication date Assignee Title
US20130043003A1 (en) * 2011-08-18 2013-02-21 Mitsubishi Electric Corporation Indoor unit for air-conditioning apparatus and air-conditioning apparatus including the indoor unit
US9255722B2 (en) * 2012-10-10 2016-02-09 Lg Electronics Inc. Air conditioner having a movable panel that opens and closes discharge ports
US9759445B2 (en) 2012-10-10 2017-09-12 Lg Electronics Inc. Air conditioner
US20140308887A1 (en) * 2013-04-11 2014-10-16 Samsung Electronics Co., Ltd. Blade assembly and air conditioner having the same
US11054152B2 (en) * 2016-10-21 2021-07-06 Samsung Electronics Co., Ltd. Air conditioner
US10619648B2 (en) * 2017-02-10 2020-04-14 Samsung Electronics Co., Ltd. Air conditioner
US20180231022A1 (en) * 2017-02-10 2018-08-16 Samsung Electronics Co., Ltd. Air conditioner
US11982450B2 (en) * 2017-07-31 2024-05-14 Gd Midea Air-Conditioning Equipment Co., Ltd. Air conditioner indoor unit
CN107355872A (zh) * 2017-08-21 2017-11-17 广东美的制冷设备有限公司 空调器和散风部件
CN108131811A (zh) * 2017-12-19 2018-06-08 珠海格力电器股份有限公司 室内机及应用其的空调器
CN110822550A (zh) * 2018-07-23 2020-02-21 青岛海尔空调器有限总公司 一种室内机及空调器
WO2022030947A1 (en) * 2020-08-07 2022-02-10 Lg Electronics Inc. Indoor unit of air conditioner
US20230280047A1 (en) * 2020-08-07 2023-09-07 Lg Electronics Inc. Indoor unit of air conditioner
EP4001780A1 (en) * 2020-11-13 2022-05-25 LG Electronics Inc. Air conditioner
US20230366582A1 (en) * 2021-01-29 2023-11-16 Daikin Industries, Ltd. Air blower
US12287109B2 (en) * 2021-01-29 2025-04-29 Daikin Industries, Ltd. Air blower

Also Published As

Publication number Publication date
JP5279622B2 (ja) 2013-09-04
CN101907323A (zh) 2010-12-08
EP2273208A1 (en) 2011-01-12
EP2273208B1 (en) 2018-06-13
CN101907323B (zh) 2013-07-17
JP2010281550A (ja) 2010-12-16

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