WO2007074952A2 - Section interieure de climatiseur - Google Patents

Section interieure de climatiseur Download PDF

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Publication number
WO2007074952A2
WO2007074952A2 PCT/KR2006/000290 KR2006000290W WO2007074952A2 WO 2007074952 A2 WO2007074952 A2 WO 2007074952A2 KR 2006000290 W KR2006000290 W KR 2006000290W WO 2007074952 A2 WO2007074952 A2 WO 2007074952A2
Authority
WO
WIPO (PCT)
Prior art keywords
indoor unit
air
frame
fan
front frame
Prior art date
Application number
PCT/KR2006/000290
Other languages
English (en)
Other versions
WO2007074952A3 (fr
Inventor
Jeong Hun Kim
Hye Young Song
Se Hyun Kim
Young Ki Hong
Original Assignee
Lg Electronics Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020050129552A external-priority patent/KR20070087829A/ko
Priority claimed from KR1020050129554A external-priority patent/KR100758905B1/ko
Priority claimed from KR1020050129555A external-priority patent/KR100758906B1/ko
Priority claimed from KR1020050129553A external-priority patent/KR100789820B1/ko
Application filed by Lg Electronics Inc. filed Critical Lg Electronics Inc.
Priority to ES06703517.0T priority Critical patent/ES2442690T3/es
Priority to CN2006800491810A priority patent/CN101512237B/zh
Priority to EP06703517.0A priority patent/EP1966544B1/fr
Publication of WO2007074952A2 publication Critical patent/WO2007074952A2/fr
Publication of WO2007074952A3 publication Critical patent/WO2007074952A3/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0022—Centrifugal or radial fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0025—Cross-flow or tangential fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans

Definitions

  • the present invention relates to air conditioners, and more particularly, to an indoor unit which draws air through a front, and discharges air heat exchanged therein in a front direction through sides, having an optimized structure with increased suction and discharge rates and low noise.
  • the air conditioner repeats a refrigerating cjcle in which refrigerant is compressed, condensed, expanded, and vaporized.
  • gaseous refrigerant at a low temperature and low pressure before introduction to a compressor is compressed into a high temperature high pressure gaseous refrigerant at the compressor, turned into high pressure liquid refrigerant as the gaseous refrigerant discharges heat at a condenser, and turned into low temperature low pressure liquid refrigerant as the high pressure liquid refrigerant passes through an expansion valve.
  • the refrigerant passed through the expansion valve is turned into low temperature low pressure refrigerant at an evaporator as the refrigerant absorbs heat as the refrigerant passes through an evaporator, and introduced into the compressor again.
  • the air conditioner cools or heats required places in a performing such a series of cjcles.
  • the air conditioners there are a package type air conditioner having an indoor unit and an outdoor unit built in one body and mostly installed at a window, and a separate type air conditioner having the indoor unit and the outdoor unit separated from each other.
  • the indoor unit there is a wall type for mounting on a wall as a kind of interior decoration.
  • a related art indoor unit disclosed in Korea laid open patent No. 10-2005-0089203 has a structure in which air is drawn through a rear side of the indoor unit, and discharges through a front of the indoor unit, of which detailed description will be omitted, expecting to refer to above document if necessary.
  • the motor mounted on a front panel for driving a turbofan to draw air through the rear of the indoor unit makes the front panel, having much of the consumer's vision taken into amount in design, to vibrate when the motor is in operation.
  • the object of the present invention for solving the foregoing various problems lies on providing an indoor unit which draws air through a front, and discharges air heat exchanged therein in a front direction through sides, having an optimized structure with increased suction and discharge rates and low noise.
  • the present invention relates to an indoor unit which discharges air drawn through a front and heat exchanged therein in a front direction through sides, having a new structure in which suction and discharge flow structures and various components are optimized for increasing an air flow rate while maintaining good low noise characteristics.
  • an indoor unit for an air conditioner including a front frame made to enable air suction through a front thereof, a base frame joined with the front frame, having outlets in sides and a bottom, and a motor seat for mounting a fan driving motor thereon, a guide frame between the front frame and the base frame for guiding an air flow, a heat exchanger between the front frame and the guide frame, a fan for discharging heat exchanged air to an outside of the indoor unit, and a front panel mounted in front of the front frame with a space thereto.
  • the indoor unit for an air conditioner includes a front frame made to enable air suction through a front thereof, a base frame joined with the front frame, having outlets in sides and a bottom, and two motor seat on an inner side of a front for mounting two turbo fan driving motor thereon, a guide frame between the front frame and the base frame for guiding an air flow, a heat exchanger between the front frame and the guide frame, two turbo fans for discharging air heat exchanged as the air passes through the heat exchanger to an outside of the indoor unit, and a front panel mounted in front of the front frame with a space thereto.
  • an indoor unit for an air oonditioner includes a front frame made to enable air suction through a front, a base frame joined with the front frame, having outlets in sides, and motor seats on an inner side of an upper or lower side for mounting motors for driving cross flow fans, a heat exchanger in rear of the front frame, the cross flow fans on left and right sides in rear of the heat exchanger, and a front panel in front of the front frame with a space therefrom for shading an air suction face of the front frame.
  • the indoor unit for an air conditioner has the following advantages.
  • an indoor unit drawing air from a front and discharging heat exchanged air through sides, permits to optimize a structure to increase suction and discharge flow rates while reducing noise.
  • the present invention permits to provide an indoor unit of new structure having optimized suction/discharge structures and various components such that low noise characteristics can be maintained while an air flow rate can be increased.
  • the front panel designed taking a consumer visual sense into account does not vibrate, to reduce the noise at the time the motor is driven.
  • FIG. 1 illustrates an exterior perspective view of an indoor unit in accordance with a preferred embodiment of the present invention
  • FIG. 2 illustrates an exploded perspective view of FIG. 1 ;
  • FIG. 3 illustrates a section of the indoor unit xross a line I-I in FIG. 1 ;
  • FIG.4 illustrates a plan view of "A" part in FIG. 2 for showing an edge structure of a front panel of the indoor unit of the present invention
  • FlG. 5 illustrates a perspective view of a front frame of the indoor unit of the present invention
  • FIG. 6 illustrates a perspective view of a guide frame of the indoor unit of the pres ent invention
  • FIG. 7 illustrates a front view of FIG. 6
  • FIG. 8 illustrates a section ⁇ cross the line IMI in FIG. 6;
  • FIG. 9 illustrates a graph showing a ratio of an orifice radius to a fan diameter versus noise
  • FIG. 10 illustrates a perspective view showing a variation of a turbofan of an indoor unit of the present invention
  • FIG. 11 illustrates a perspective view showing another variation of a turbofan of an indoor unit of the present invention
  • FIG. 12 illustrates a graph showing a comparison noise characteristics of a turbofan having the present invention applied thereto and a related art fan
  • FIG. 13 illustrates a plan view of FIG. 10;
  • FIG. 14 illustrates a perspective view of a motor mount base of an indoor unit of the present invention
  • FIG. 15 illustrates a back side perspective view of FIG. 14
  • FIG. 16 illustrates a plan view for explaining a mounting position of an electric dust collector to an indoor unit of the present invention
  • FIG. 17 illustrates a side view of FIG. 16
  • FIG. 18 illustrates a reference drawing having a flow pattern at a discharge portion of the related art indoor unit made visible
  • FIGS. 19 to 21 front views of indoor units in accordance with another preferred embodiments of the present invention respectively, of cases having two turbofans respectively applied to the indoor units, together with a scroll structure in each of the cases;
  • FIG. 22 illustrates a perspective view of an indoor unit in accordance with another preferred embodiment of the present invention, having a cross flow fan applied thereto;
  • FIGS. 23 to 26 respectively illustrate cross sections of variations of an indoor unit in accordance with a preferred embodiment of the present invention, having two cross flow fans applied thereto.
  • FIG. 1 illustrates an exterior perspective view of an indoor unit in accordance with a preferred embodiment of the present invention
  • FIG. 2 illustrates an exploded perspective view of FIG. 1
  • FIG. 3 illustrates a section of the indoor unit across a line I-I in FTG. 1.
  • FIG. 4 illustrates a plan view of "A" part in FIG. 2 for showing an edge structure of a front panel of the indoor unit of the present invention
  • FIG. 5 illustrates a perspective view of a front frame of the indoor unit of the present invention.
  • FIG. 6 illustrates a perspective view of a guide frame of the indoor unit of the present invention
  • FIG. 7 illustrates a front view of FIG. 6
  • FIG. 8 illustrates a section across the line II-II in FIG. 6
  • FIG. 9 illustrates a graph showing a ratio of an orifice radius to a fan diameter versus noise.
  • FIG. 10 illustrates a perspective view showing a variation of a turbofan of an indoor unit of the present invention
  • FIG. 11 illustrates a perspective view showing another variation of a turbofan of an indoor unit of the present invention
  • FIG. 12 illustrates a graph showing a comparison noise characteristics of a turbofan having the present invention applied thereto and a related art fan
  • FIG. 13 illustrates a plan view of FIG. 10.
  • FIG. 14 illustrates a perspective view of a motor mount base of an indoor unit of the present invention
  • FIG. 15 illustrates a back side perspective view of FIG. 14.
  • FIG. 16 illustrates a plan view for explaining a mounting position of an electric dust collector to an indoor unit of the present invention
  • FIG. 17 illustrates a side view of FIG. 16.
  • the indoor unit 1 of an air conditioner of the present invention includes a front frame 200 made to enable air suction through a front thereof, a base frame 400 for joining with the front frame 200, having outlets in sides and a bottom, and a seating portion 410 at a front center for seating a fan driving motor, a guide frame 300 between the front frame 200 and the base frame 400 for guiding an air flow, a heat exchanger 500 between the front frame 200 and the guide frame 300, a turbofan 600 for discharging air having heat exchanged as the air passes through the heat exchanger 500 to an outside of the indoor unit, and a front panel 100 mounted in front of the front frame 200 spaced therefrom.
  • the front panel 100 has a predetermined thickness except an edge portion which has a thickness that becomes the thinner as it goes outward from a predetermined position the more for reducing an air suction resistance. That is, the edge portion of the front panel 100 has a predetermined slope angle ⁇ .
  • a circumference of the front panel 100 may be chamfered 110.
  • the front frame has a grating type of air inlet 210 at a center of a front for drawing air, and bosses 220 at outer sides of the air inlet 210 for securing the front panel.
  • the filter 800 On the air inlet 210 of the front frame 200, there is a filter 800 for filtering foreign matters.
  • the filter has a mesh form.
  • a top side inlet portion 'B' of the front frame 200 has curved for minimizing a flow resistance.
  • the guide frame 300 includes an orifice 310 for guiding an air flow drawn by the turbofan 600, and upper/lower scrolls 320a, and 320b for guiding an air flow discharged from the turbofan 600 and fixing a direction of discharge.
  • the upper scroll 320a has a combined surface of two curved surfaces which surrounds the turbo fan 699, with a cut-off point at a first quadrant (an upper left side surface) of the guide frame 300 with coordinates of 0.17 ⁇ x/ ⁇ 0.48, 0.54 ⁇ y/ ⁇ 0.68 where ⁇ denotes a diameter of the turbo fan 600, and x, and y denote coordinates with an origin at a center of the turbo fan 600.
  • the guide frame 300 further includes a heat exchanger supporting portion 330 on an opposite surface of the scrolls for maintaining a gap between the orifice 310 and the heat exchanger 500.
  • Noise is minimum and a performance of the turbo fan is maximum when a gap 'G' between a bottom of the orifice 310 to a bottom of the heat exchanger 500 is 9.5 ⁇ 10.5% of a diameter of the turbo fan.
  • the gap 'G 1 is 28.5 ⁇ 31.5mm.
  • a ratio R/ ⁇ of a radius 'R' of the orifice 310 to the diameter ⁇ of the turbo fan 600 is 0.05 ⁇ 0.07 for determining an optimal orifice 310 shape that minimizes a flow resistance, at which range both noise characteristics and a turbo fan performance is optimized.
  • both the noise characteristics and the turbo fan performance is the best at the ratio R/ ⁇ of 0.06, of the radius 'R' of the orifice 310 to the diameter ⁇ of the turbo fan 600.
  • the guide frame 300 has edge planes 340, which are surfaces for guiding discharge of air, bent toward a front side of the indoor unit.
  • the turbo fan 600, or 600a includes a shroud 610 having a central suction opening, a hub 630 having a main plate 620 opposite to, and spaced a predetermined distance from, the shroud 610, for connecting a rotation shaft of the motor at a center, and a plurality of blades 640, or 640a each having a predetermined curvature connected in a circumferential direction of the hub 630 between the main plate 620 of the hub 630 and the shroud 610.
  • Tip pitches of the blades 640, or 640a of the turbo fan 600, or 600a are variable or equal, wherein, in general, the variable pitch is favorable for the fan performance (static pressure characteristics with respect to the same air flow rate) and noise, while the equal pitch is favorable for fan balancing. Therefore, the fan is designed in the variable pitch or the equal pitch, taking a fan diameter, a width of the blade, and a number of the blades into amount. For an example, the fan with the equal pitch has the best noise characteristics in a condition that the fan diameter ⁇ is 300mm, the width (L see FIG. 10) of the blade is 50mm, and the number of the blades is 13.
  • the width of the blades can be always the same regardless of a distance from the center of the turbo fan to the tip (see FIG. 10), or varied with the distance from the center of the turbo fan to the tip (see FIG. 11).
  • the width of the blade may always have the same dimension regardless of a radial distance from the center of the turbo fan as shown in FIG. 10, or becomes the smaller as it goes the more after the blade passes the main plate as shown in FIG. 11.
  • the turbo fan 600 in FIG. 10 having the same width of the blade 640 regardless of the distance of the blade from a fan center with a larger area of the blades, is favorable in view of securing greater flow rate
  • the turbo fan 600a in FIG. 11 having a width of the blade 640a which becomes the smaller as it goes the more after the blade passes the main plate in a shape a main plate 620 side of the blades is cut away, is favorable in view of suppression of vortex caused by flow interference between the main plate 620 connected to the hub 630 and the blades.
  • the tip of the blade 640, or 640a is positioned the same with an edge of the shroud 610.
  • the ' motor seat portion 410 at a center of the base frame 400 for a fan driving motor is an annular bead portion 410a for enabling to secure a stable and adequate width of the blade.
  • the base frame 400 of the present invention has 4 ⁇ 8mm range of the thickness 't' of the base frame 400 for being out of the natural frequency of the motor.
  • the base frame 400 has a guide surface 440 of a predetermined curvature on an inside of a lower side of an outlet 430 in an edge of the base frame 400 for guiding air to be discharged toward a front side of the indoor unit.
  • the indoor unit 1 of the present invention can discharge air toward the front side of the indoor unit even if there is no air direction control device additionally.
  • outlet 430 of the indoor unit 1 of the present invention may be provided with a louver (not shown) to opened/closed in a sliding type by a step motor.
  • an opening angle of the louver is determined such that the louver does not act as a resistance to the air discharged in a front direction guided by the discharge air guide surface 440 of the inside surface of the base frame 400.
  • louver also serve to guide the air to be discharged toward the front of the indoor unit, because the indoor unit 1 of the present invention can discharge the air toward the front of the indoor unit even if the indoor unit 1 is not provided with an additional flow direction control device, the indoor unit 1 may not be provided with the louver.
  • the indoor unit 1 is provided with the louver because the louver covers the outlet of the indoor unit to maintain an exterior of the indoor unit clean, and prevent dusts or foreign matters from entering through the outlet when the indoor unit 1 is not in operation.
  • the indoor unit 1 of the present invention is provided with an electric dust collector 700 on an air suction plane of the heat exchanger 500.
  • the electric dust collector 700 is mounted a distance away from a center of the turbo fan 600.
  • the electric dust collector 700 is mounted at a position where a ratio 1/h is 5 ⁇ 6 where '1' denotes a distance from the center of the turbo fan 600, and 'h' denotes a height from an upper surface of the turbo fan 600 to a center of the electric dust collector 700, at which position the electric dust collector 700 has minimum noise while keeping a performance the same.
  • the electric dust collector 700 is secured to fins of the heat exchanger
  • a photocatalytic plasma electric dust collector is provided for applying a high voltage to remove fine dust from air and de- odoring air
  • a general electric dust collector may be provided if the fine dust only is removed.
  • an activated carbon filter may be provided, additionally.
  • the photocatalytic plasma electric dust collector includes an ionizing unit for ionizing dust in the air and emitting photo energy, a capturing unit for capturing dust ionized at the ionizing unit, a photocatalytic filter for decomposing ordor particle captured by the photo energy emitted from the ionizing unit, and a high voltage generating unit for applying a high voltage to the dust collecting filter.
  • the turbo fan 600 rotates to draw room air through a space between the front panel 100 and the front frame 200.
  • the air has foreign matters filtered therefrom. Then, the air is heated at the heat exchanger 500, and drawn into the turbo fan 600 guided by the orifice 310 at the guide frame 300.
  • the dust collector is the photocatalystic plasma electric dust collector, fine dust is captured and filtered, and the air is deordored.
  • 700 is discharged in a radial direction of the fan, with an air flow thereof divided in left/right and lower directions by guidance of the upper and lower scrolls 320a, and 320b.
  • the air is discharged toward a front side of the indoor unit by guidance of the guide surface 440 of the base frame 400 and the edge planes of the guide frame 300.
  • the front panel 100 attached to a front of the indoor unit 1 of the present invention, shades the air inlet 210 having the filter mounted thereto to make the indoor unit 1 to look better.
  • a display unit (not shown) provided separately or as one unit with the front panel 100 for displaying operation, andor operation states, or function handling states of the indoor unit 1 to the user.
  • the edge portion of the front panel 100 having a cut away inside surface to make thickness thereof the thinner as it goes to an edge the more, enlarges an air suction area between the front panel 100 and the front frame 200.
  • the top side inlet portion of the front frame 200 is formed to have a predetermined curve for minimizing a flow resistance of air, because the top side inlet portion of the front frame 200 is high such that it is invisible to the user if the indoor unit 1 is mounted on a wall.
  • the filter 800 on the air inlet 210 of the front frame 200 being a mesh type filter, filters large sized dust and foreign matters from air.
  • the orifice 310 in the guide frame 300 guides the air drawn into the turbo fan
  • the scrolls of guide frame 300 serving to fix a discharge direction of air discharged from the turbo fan 600 as well as make an air flow dis- tribution of the discharged air uniform to the maximum, contributes to reduction of noise of the indoor unit 1, and serves to enhance a performance of the turbo fan to the maximum by guiding the discharge air, effectively.
  • the heat exchanger supporting portion 330 on an opposite surface of the scrolls projected therefrom at a predetermined height maintains a gap between the orifice 310 and the heat exchanger 500, for securing a required heat exchange area between the drawn air and the heat exchanger 500.
  • the edge planes 340 of the guide frame 300 bent toward the front side of the indoor unit 1 improve a flow resistance of the air discharged, to reduce noise, and prevent the air from returning, so as to be drawn through the gap between the front panel 100 and the front frame 200 again.
  • the planar surface of the edge portion 340 of the guide frame 300 reduces a flow resistance and the returning of air compared to a curved edge portion of the guide frame 300.
  • the turbo fan 600a in FIG. 11 employing blades each having a width which becomes the smaller on a side of the main plate 620 as it goes toward a blade tip the more, has a poor static pressure characteristics compared to the turbo fan 600 in FIG. 11, employing blades each having the same blade width up to an end of the tip, to require faster fan, that results in an increased noise because the rotation speed of the turbo fan is a major source of noise.
  • the turbo fan 600 having wide and long blades as shown in
  • FIG. 10 is employed, to secure an adequate air flow rate even if the rotation speed is low, the noise caused by the rotation speed can be reduced.
  • turbo fan in FIG. 11 is favorable in view of noise caused by vortex, if the rotation speed is increased to overcome the drawback of the low flow rate, it has a drawback in that motor noise increases following the increase of the rotation speed.
  • the turbo fan in FIG. 10 is not favorable in view of noise caused by the vortex relative to the turbo fan in FIG. 11, it is favorable in view of an air flow rate, to expect an effect of reduction of noise coming from the rotation speed reduction.
  • the noise reduction effect of the turbo fan in FIG. 10 is better.
  • the turbo fan in FIG. 10 is a better noise reduction effect than the turbo fan in FIG. 11, since the turbo fan in FIG. 11 has good noise characteristics, the turbo fan 1 can be applicable to the indoor unit 1 of the present invention.
  • the ribs in the vicinity of the motor seat portion 410 on a bask side of the base frame 400 reinforce strength of the base frame 400, and make frequency characteristics of the base frame 400 to fall on an outside of a natural frequency of the motor, so that the base frame 400 and the motor do not resonate.
  • annular bead portion 410a at the base frame 400 serves to reinforce and avoid resonance at the time of operation of the motor, the annular bead portion 410a also serves to keep the width of the blade of the turbo fan constant.
  • the design of the main plate 620 of the turbo fan to surround the bead portion 410a of the base frame 400 at a position lower than the highest projected point of the bead portion 410a on the drawing enables the width of the blade secured, adequately.
  • the electric dust collector 700 on the air suction surface of the heat exchanger removes fine dust from air before the air passes through the heat exchanger 500.
  • the electric dust collector 700 positioned a predetermined distance away from the center of the turbo fan can provide an adequate dust collecting performance while the electric dust collector 700 does not act as a resistance to the air.
  • the front panel 100 may be a fixed type, in view of reduction of defective front panel 100, it may also be preferable that a suction area variable type of the front panel 100 is employed, in which the panel 100 is tilted in a fashion that an upper side or a lower side of the front panel 100 moves apart from the front frame, or the like in operation of the indoor unit while the front panel 100 is closed when the indoor unit is not in operation, or the entire front panel 100 moves forward to increase the suction area.
  • the embodiment is identical to the foregoing embodiment in that room air is drawn through the front and discharged to the front side of the indoor unit through the heat exchanger 500 and the turbo fan 600, the embodiment is different from the foregoing embodiment in that the embodiment is provided with two turbo fans 600, together with consequential partial changes of stricture.
  • the indoor unit of the embodiment includes a front frame 200 (see FIG. 2) made to enable air suction through a front thereof, a base frame 400 (see FIG. 2) joined with the front frame 200 having air outlets in sides and a bottom, and two motor seats 410 (see FIG. 14) on an inner side of a front for driving turbo fans, a guide frame 300 (see FIGS. 2 and 6) between the front frame 200 and the base frame 400 for guiding an air flow, a heat exchanger 500 between the front frame 200 and the guide frame 300, and a front panel 100 (see FIG. 2) mounted in front of the front frame 200 with a space therefrom.
  • the embodiment is characterized in that two turbo fans 600 are mounted on an upper side and a lower side respectively, a middle scroll 320c is mounted between the two turbo fans for isolating the two turbo fans and guiding discharge air flows, an upper scroll 320a over the upper turbo fan, and lower scrolls 320b under the lower turbo fan for guiding air discharge to the lower side.
  • the guide frame 300 has orifices 310 formed in correspondence to the turbo fans for guiding air flows toward the turbo fans, respectively.
  • the turbo fans are mounted to rotate in different directions.
  • FIG. 21 illustrates a middle scroll 320e tilted opposite to FIG. 19.
  • the indoor unit having two turbo fans is mounted to one end of a wall, the air flow can be improved effectively by controlling left/right side air discharge flow rates of the indoor unit.
  • the indoor unit of the embodiment is the same with the foregoing embodiment in that the air discharge flow rate can be distributed uniformly in left/right sides, and the left/right side air discharge flow rates can be varied, taking the mounting position of the indoor unit into account, to obtain a desired feeling of air flow.
  • FIG. 22 illustrates a perspective view of an indoor unit having the two cross flow fans 900 applied thereto, including a front frame 200 made to enable air suction through a front, a base frame 400 joined with the front frame 200, having outlets in sides, and motor seats on an inner side of upper and lower sides for mounting motor for driving the cross flow fans, a heat exchanger 500 in rear of the front frame 200, cross flow fans 900 on left and right sides in rear of the heat exchanger 500, and a front panel 100 in front of the front frame 200 with a space therefrom for shading an air suction face of the front frame 200.
  • the front panel 100 is mounted such that upper/lower and left/right sides thereof have the same air suction gap from the air suction face of the front frame 200.
  • FIGS. 23 to 26 illustrate cross sections of variations of the indoor unit of the present invention having two cross flow fans 900 applied thereto, having basic structures identical to a structure shown in FIG. 11, except that front panel mounting structures, diameters of the fans, and shapes of the heat exchangers 500 are different.
  • the indoor unit in FIG. 23 has the front panel 100 spaced apart from the air suction face of the front frame 200 sich that the front frame 200 is tilted from the air suction face by an angle ' ⁇ ' wherein the front panel 100 is in close contact with the air suction face of the front frame 200 to close the air inlet until a separate driving unit (not shown) is driven to open the front panel with a predetermined tilting angle.
  • the indoor unit FIG. 24 has the front panel 100 mounted to one side of the front frame 200 like a cantilever, wherein the front panel 100 is in close contact with the air suction face of the front frame 200 until a separate driving unit (not shown) is driven to make the front panel spaced apart from the air suction face by the same distance entirely, to open the air suction face.
  • FIGS. 23 and 24 have straight lined sections of the heat exchangers.
  • the indoor unit in FIG. 25 has the front panel 100 in close oontact with the air suction face of the front frame 200 until a separate driving unit (not shown) is driven to make the front panel 100 spaced from the air suction face.
  • the heat exchanger 500 has a straight line section with thickness at opposite edges facing the cross flow fans 900 formed thinner than a middle portion. That is, the middle portion of the heat exchanger 500 has two rows of refrigerant pipes while the opposite edges have a single row of refrigerant pipe.
  • the indoor unit in FIG. 26 has the front panel 100 spaced a distance apart from the air suction face of the front frame 200 until a separate driving unit (not shown) is driven to make the front panel 100 spaced from the air suction face farther.
  • the heat exchanger 500 has a 'V section on the whole.
  • 500 facing the cross flow fans 900 may have thickness thinner than a middle portion.
  • the indoor units according to embodiments of the present invention are mounted on the wall vertically.
  • the indoor units according to embodiments of the present invention may be mounted horizontally.
  • the indoor units according to embodiments of the present invention may be mounted in any direction, such as mounting in a tilted position.
  • the indoor units according to embodiments of the present invention are mounted vertically, taking positions of air outlets and air flow directions into account.

Landscapes

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

Abstract

L'invention concerne une section intérieure qui aspire l'air à travers une partie avant, et évacue la chaleur de l'air échangée à l'intérieur vers l'avant, par les côtés, et présentant une structure optimisée avec des taux d'aspiration et d'évacuation accrus et un bruit faible. Pour cela, la section intérieure comprend un bâti avant conçu pour permettre l'aspiration d'air à travers une partie avant, un bâti de base assemblé avec le bâti avant, présentant des sorties destinées au montage d'un moteur d'entraînement de ventilateur, un bâti de guidage entre le bâti avant et le bâti de base destiné à guider un flux d'air, un échangeur thermique entre le bâti avant et le bâti de guidage, un ventilateur destiné à évacuer l'air soumis à un échange thermique vers une partie extérieure de la section intérieure, ainsi qu'un panneau avant monté en face du bâti avant avec un espace associé.
PCT/KR2006/000290 2005-12-26 2006-01-25 Section interieure de climatiseur WO2007074952A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES06703517.0T ES2442690T3 (es) 2005-12-26 2006-01-25 Unidad interior de acondicionador de aire
CN2006800491810A CN101512237B (zh) 2005-12-26 2006-01-25 空调的室内单元
EP06703517.0A EP1966544B1 (fr) 2005-12-26 2006-01-25 Section interieure de climatiseur

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
KR1020050129552A KR20070087829A (ko) 2005-12-26 2005-12-26 공기조화기의 실내기
KR10-2005-0129552 2005-12-26
KR1020050129554A KR100758905B1 (ko) 2005-12-26 2005-12-26 공기조화기의 실내기
KR10-2005-0129554 2005-12-26
KR10-2005-0129551 2005-12-26
KR1020050129555A KR100758906B1 (ko) 2005-12-26 2005-12-26 공기조화기의 실내기
KR20050129551 2005-12-26
KR10-2005-0129553 2005-12-26
KR1020050129553A KR100789820B1 (ko) 2005-12-26 2005-12-26 공기조화기의 실내기
KR10-2005-0129555 2005-12-26

Publications (2)

Publication Number Publication Date
WO2007074952A2 true WO2007074952A2 (fr) 2007-07-05
WO2007074952A3 WO2007074952A3 (fr) 2009-04-30

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Country Status (3)

Country Link
EP (1) EP1966544B1 (fr)
ES (1) ES2442690T3 (fr)
WO (1) WO2007074952A2 (fr)

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EP2169319A1 (fr) * 2008-09-30 2010-03-31 Mitsubishi Heavy Industries, Ltd. Climatiseur
CN102012082A (zh) * 2010-12-24 2011-04-13 广东美的电器股份有限公司 分体落地式空调器室内机的侧出风结构
JP2013011416A (ja) * 2011-06-30 2013-01-17 Panasonic Corp 空気清浄機及び加湿機能付空気清浄機
US20140345835A1 (en) * 2013-05-24 2014-11-27 Lg Electronics Inc. Indoor unit for air conditioner
EP2813767A1 (fr) * 2013-06-14 2014-12-17 LG Electronics Inc. Climatiseur
EP2813769A1 (fr) * 2013-06-14 2014-12-17 LG Electronics, Inc. Climatiseur
WO2015009264A1 (fr) * 2013-07-17 2015-01-22 Arcelik-Lg Klima Sanayi Ve Ticaret Anonim Sirketi Pièce de raccordement pour moteur
CN104990149A (zh) * 2015-07-31 2015-10-21 芜湖美智空调设备有限公司 空调器室内机和空调器
EP3730849A4 (fr) * 2019-02-27 2021-06-09 GD Midea Air-Conditioning Equipment Co., Ltd. Module d'air frais, unité intérieure de climatiseur, et climatiseur
KR20220147057A (ko) * 2014-02-28 2022-11-02 삼성전자주식회사 공기조화기의 실내기 및 이에 적용되는 블레이드 유닛

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CN110056964B (zh) * 2019-05-10 2021-01-29 青岛海尔空调器有限总公司 壁挂式空调器室内机
CN110056963A (zh) * 2019-05-10 2019-07-26 青岛海尔空调器有限总公司 壁挂式空调器室内机

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2169319A1 (fr) * 2008-09-30 2010-03-31 Mitsubishi Heavy Industries, Ltd. Climatiseur
CN102012082A (zh) * 2010-12-24 2011-04-13 广东美的电器股份有限公司 分体落地式空调器室内机的侧出风结构
CN102012082B (zh) * 2010-12-24 2013-05-08 广东美的电器股份有限公司 分体落地式空调器室内机的侧出风结构
JP2013011416A (ja) * 2011-06-30 2013-01-17 Panasonic Corp 空気清浄機及び加湿機能付空気清浄機
US9752816B2 (en) * 2013-05-24 2017-09-05 Lg Electronics Inc. Indoor unit for air conditioner
US20140345835A1 (en) * 2013-05-24 2014-11-27 Lg Electronics Inc. Indoor unit for air conditioner
EP2813767A1 (fr) * 2013-06-14 2014-12-17 LG Electronics Inc. Climatiseur
EP2813769A1 (fr) * 2013-06-14 2014-12-17 LG Electronics, Inc. Climatiseur
WO2015009264A1 (fr) * 2013-07-17 2015-01-22 Arcelik-Lg Klima Sanayi Ve Ticaret Anonim Sirketi Pièce de raccordement pour moteur
KR20220147057A (ko) * 2014-02-28 2022-11-02 삼성전자주식회사 공기조화기의 실내기 및 이에 적용되는 블레이드 유닛
KR102646110B1 (ko) 2014-02-28 2024-03-12 삼성전자주식회사 공기조화기의 실내기 및 이에 적용되는 블레이드 유닛
CN104990149A (zh) * 2015-07-31 2015-10-21 芜湖美智空调设备有限公司 空调器室内机和空调器
EP3730849A4 (fr) * 2019-02-27 2021-06-09 GD Midea Air-Conditioning Equipment Co., Ltd. Module d'air frais, unité intérieure de climatiseur, et climatiseur
JP2021517226A (ja) * 2019-02-27 2021-07-15 広東美的制冷設備有限公司Ｇｄ Ｍｉｄｅａ Ａｉｒ−Ｃｏｎｄｉｔｉｏｎｉｎｇ Ｅｑｕｉｐｍｅｎｔ Ｃｏ．，Ｌｔｄ． 外気導入モジュール、空調室内機及び空気調和機
JP7108639B2 (ja) 2019-02-27 2022-07-28 広東美的制冷設備有限公司 外気導入モジュール、空調室内機及び空気調和機

Also Published As

Publication number Publication date
ES2442690T3 (es) 2014-02-12
WO2007074952A3 (fr) 2009-04-30
EP1966544A4 (fr) 2012-03-28
EP1966544A2 (fr) 2008-09-10
EP1966544B1 (fr) 2014-01-08

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