EP1686324B1 - Indoor unit of air-conditioning system - Google Patents

Indoor unit of air-conditioning system Download PDF

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Publication number
EP1686324B1
EP1686324B1 EP05258107A EP05258107A EP1686324B1 EP 1686324 B1 EP1686324 B1 EP 1686324B1 EP 05258107 A EP05258107 A EP 05258107A EP 05258107 A EP05258107 A EP 05258107A EP 1686324 B1 EP1686324 B1 EP 1686324B1
Authority
EP
European Patent Office
Prior art keywords
air
door
conditioning system
indoor unit
cabinet
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.)
Not-in-force
Application number
EP05258107A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1686324A1 (en
Inventor
Kang Young Kim
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.)
LG Electronics Inc
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
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1686324A1 publication Critical patent/EP1686324A1/en
Application granted granted Critical
Publication of EP1686324B1 publication Critical patent/EP1686324B1/en
Not-in-force 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
    • 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
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/082—Grilles, registers or guards
    • F24F13/084—Grilles, registers or guards with mounting arrangements, e.g. snap fasteners for mounting to the wall or duct
    • 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
    • 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
    • F24F13/20—Casings or covers

Definitions

  • the present invention relates to a separate air-conditioning system, and more particularly, to an indoor unit of an air-conditioning system that is provided in a room to cool and heat the indoor air.
  • an air-conditioning system is equipped with a compressor and a heat exchanger to cool or heat indoor places such as living places, restaurants, libraries, or offices by flowing a refrigerant therein.
  • the air-conditioning system is generally divided into a separate air-conditioning system and an integral air-conditioning system.
  • the integral air-conditioning system includes an outdoor unit and an indoor unit formed in a single body without being separated from each other.
  • the outdoor unit and the indoor unit are directly provided in a house in a state that they are built in a wall or hung on a window.
  • the separate air-conditioning system includes an indoor unit provided with a heat exchanger that carries out room cooling or room heating, an outdoor unit provided with a heat exchanger that performs heat exchange with the outdoor air, and a refrigerant pipe that connects the indoor unit with the outdoor unit.
  • the indoor unit and the outdoor unit are separately provided so that the indoor unit is provided at the indoor and the outdoor unit is provided at the outdoor.
  • the position and a shape of air outlets act as main factors.
  • Document JP 2003 156 226 discloses an air conditioner having inlet ports and outlet ports in a cabinet so that an air state is changed and air can be delivered into the room after sucking the air in the room.
  • Document JP 2003 343871 discloses a floor type air conditioner set on an indoor floor comprising a heat exchanger, a blowoff part and a fan, the blowout part having a plurality of blowoff ports arranged in a lateral direction.
  • the present invention is directed to an indoor unit of an air-conditioning system that substantially obviates one or more problems due to limitations and disadvantages of the related art.
  • An object of the present invention is to provide an indoor unit of an air-conditioning system that quickly and uniformly performs room cooling or room heating.
  • an indoor unit of an air-conditioning system includes a cabinet 100 provided with various elements of the indoor unit.
  • Air outlets 101 and 102 are formed at one side and the other side of the cabinet 100 to discharge the air.
  • the air outlets 101 and 102 are opened and closed by outlet doors 210 and 220 that are movably provided in the cabinet 100.
  • the outlet doors 210 and 220 are preferably formed at left and right side portions of the cabinet 100.
  • the air outlet formed at the left side portion of the cabinet 100 is referred to as the left air outlet 101
  • the air outlet formed at the right side portion of the cabinet 100 is referred to as the right air outlet 102.
  • the outlet door that opens and closes the left air outlet 101 is referred to as the left outlet door 210, and the outlet door that opens and closes the right air outlet 102 is referred to as the right outlet door 220.
  • the left and right air outlets 101 and 102 are formed at both edge portions of the front surface of the cabinet 100 so that they are to be flush with the front surface of the cabinet 100.
  • the left and right air outlets 101 and 102 may be formed at both side portions of the front surface of the cabinet 100.
  • left and right air outlets 101 and 102 are preferably formed above the left and right side portions of the cabinet 100. More specifically, the left and right air outlets 101 and 102 are longitudinally formed above the left and right side portions of the cabinet 100 in up and down directions.
  • an upper air outlet 103 is preferably formed at an upper side of the cabinet 100.
  • at least one air inlet is preferably formed at a lower portion of the cabinet 100, so that the indoor air is sucked to the air inlet.
  • a left air inlet 105 and a right air inlet 106 are longitudinally formed below the left and right side portions of the cabinet 100 in a vertical direction.
  • a front air inlet 104 is formed at a lower end of the front surface of the cabinet 100.
  • the front air inlet 104, the left air inlet 105, and the right air inlet 106 are formed at the lower portion of the cabinet 100.
  • a heat exchanger 300 and a blower 400 are received in the cabinet 100.
  • the heat exchanger 300 serves to cool and heat the air while the blower 400 serves to forcibly flow the air.
  • the blower 400 is provided at a lower portion inside the cabinet 100 and the heat exchanger 300 is slantingly provided above the blower 400 to perform heat exchange with the air discharged from the blower 400.
  • the cabinet 100 includes a front cabinet 110, a rear cabinet 120, and a base 130.
  • the base 130 supports lower portions of the front and rear cabinets 110 and 120.
  • the front cabinet 110 is fixed to the front end of the rear cabinet 120 to form a space that receives the blower 400 and the heat exchanger 300.
  • the front cabinet 110 has a rear side and a bottom that are opened.
  • the front cabinet 110 includes a front surface, left side portions 111 and 112, and right side portions 113 and 114.
  • the left and right side portions are provided at both sides of the front surface.
  • the cabinet 100 provided with the left and right air outlets 101 and 102 include the left and right side portions 111 to 114.
  • the left and right side portions of the front cabinet 110 may be extended toward the rear in a vertical direction from the front surface of the front cabinet 110.
  • the left and right side portions of the front cabinet 110 include a left slant surface 111a and a right slant surface 113a that are spaced apart from each other toward the rear at a predetermined angle from the front surface of the front cabinet 110.
  • a slant angle between the front surface of the front cabinet 110 and the left slant surface 111a and a slant angle between the front surface of the front cabinet 110 and the right slant surface 113a are preferably within the range of 15° to 25°, more specifically, 20°.
  • the slant angles are not limited to the above range.
  • the left slant surface 111a and the right slant surface 113a may be replaced with a left plane portion (not shown) and a right plane portion (not shown) that are substantially flush with the front surface of the front cabinet.
  • the left air outlet 101 and the right air outlet 102 may respectively be formed at the left plane portion and the right plane portion.
  • the front cabinet further include left and right side portions 112 and 114 extended from the rear ends of the left and right slant surfaces 111a and 113a to their rear directions at a predetermined angle from the left and right slant surfaces 111a and 113a.
  • the left and right side portions 112 and 114 may be substantially vertical to the front surface of the front cabinet 110.
  • the upper half of the front cabinet 110 provided with the air outlets 101, 102 and 103 and the lower half of the front cabinet 110 provided with the left and right air inlets 105 and 106 may separately provided to be detached from each other.
  • the lower front surface of the front cabinet 110 may be opened to easily repair or clean various elements received in the cabinet 100.
  • the left lower half provided with the left air inlet 105 is made of a left lower panel separately provided.
  • the right lower half provided with the right air inlet 106 is also made of a right lower panel separately provided.
  • the left air outlet 101 and the right air outlet 102 are respectively formed at the left side portions 111 and 112 and the right side portions 113 and 114 corresponding to the upper half of the front cabinet.
  • the left and right air outlets 101 and 102 are respectively formed at the left slant surface 111a and the right slant surface 113a of the upper half of the front cabinet 110.
  • the left air inlet 105 and the right air inlet 106 are respectively formed at both sides 112b and 114b of the lower half of the front cabinet 110.
  • the left air outlet 101 and the right air outlet 102 may respectively be formed at both sides 112a and 114a of the upper half of the front cabinet 110.
  • the left air outlet 101 and the right air outlet 102 may respectively be formed at a left slant surface 111b and a right slant surface 113b of the lower half of the front cabinet.
  • a wind controller that controls the wind of the discharged air is respectively provided at the left air outlet 101 and the right air outlet 102.
  • a plate shaped left wind vane 141 is provided at the left air outlet 101 and a plate shaped right wind vane 142 is provided at the right air outlet 102.
  • Upper and lower ends of the left and right wind vanes 141 and 142 are rotatably connected with upper and lower ends of the left and right air outlets 101 and 102, and driving motors 141a and 142a are connected to any one of the upper and lower ends of the left and right wind vanes 141 and 142 to change the wind of the discharged air to left and right directions.
  • a door driving gear 600 is provided at the upper portion of the front surface of the front cabinet 110 to drive the left and right outlet doors 210 and 220.
  • the door driving gear is covered with a front cover 150 constituting the front surface of the upper half of the front cabinet 110, and a fitting plate 160 is provided at the rear of the front cover 150 to fit the door driving gear.
  • the door driving gear will be described later in detail with reference to FIG. 6 to FIG. 8 .
  • the upper air outlet 103 is formed at an upper side 115 substantially vertical to the front surface of the front cabinet 110.
  • the upper air outlet 103 is provided with an upper door 230 rotated by a separate driving motor 231.
  • the upper door 230 opens and closes the upper air outlet 103 and at the same time controls the wind of the discharged air.
  • left and right inlet vanes 143 and 144 are rotatably provided at the left and right air inlets 105 and 106, respectively.
  • the left and right inlet vanes 143 and 144 open and close the left and right air inlets 105 and 106 and at the same time guide the sucked air.
  • Upper and lower ends of the left and right inlet vanes 143 and 144 are rotatably connected with upper and lower ends of the left and right air inlets 105 and 106, and separate driving motors 143a and 144a are connected to any one of the upper and lower ends of the left and right inlet vanes 143 and 144.
  • filter setting portions 161 and 162 are provided inside the left and right air inlets 105 and 106 so that left and right air filters 161a and 162a are set therein.
  • the air filters 161a and 162a are drawn out through the opened front surface of the lower half of the front cabinet 110.
  • the front cabinet 110 constructed as above is fixed to the upper portion of the base 130, and the front air inlet 104 is formed at the base 130.
  • a filter assembly 163 is preferably provided at the upper surface of the base 130, particularly, the upper side of the front air inlet 104.
  • the filter assembly 163 purges the air sucked through the front air inlet 104.
  • the filter assembly 163 includes a plurality of filters 163a, 163b and 163c arranged up and down.
  • the filters are comprised of hepa-filters and high performance filters such as nano-filters that remove odor particles or bacilli.
  • the rear cabinet 120 has an opened front surface and an opened bottom, and its horizontal section has a trapezoidal shape enlarged toward the front to improve space utility if the indoor unit is provided at a corner of a room.
  • An upper panel 121 downwardly slanted toward the rear to form a ceiling of the rear cabinet 120 is fixed to the upper portion of the rear cabinet 120.
  • a front door 170 is provided at the front of the aforementioned cabinet 100 to cover the front surface of the front cabinet 110.
  • One side at the lower end of the front door 170 is rotatably connected with the base 130 and one side at the upper end of the front door 170 is rotatably connected with the upper end of the front cabinet 110.
  • the front door 170 includes a glass 171, a door plate 172 provided at the rear of the glass 171, and a door frame 173.
  • the door frame 173 is rotatably connected with the base 130 and the front cabinet 110 to support the glass 171 and the door plate 172.
  • the door plate 172 is provided with an opening hole 172a, and a display 174 is provided at the rear side of the door plate 172 to display various information such as driving information through the opening hole 172a and the glass 171.
  • the blower 400 sucks the indoor air through the air inlets 104, 105 and 106 and forcibly urges air flow to allow the sucked air to be discharged out through the heat exchanger 300 and the air outlets 101, 102 and 103.
  • the blower 400 includes a blower housing 410 provided at the lower portion inside the cabinet 100 and a blower fan 420 provided inside the blower housing 410.
  • the blower housing 410 has an opened front surface to communicate with an orifice 430 that guides the air sucked through the air inlets.
  • An air outlet hole 411 is formed at the upper surface of the blower housing 410 to discharge the air toward an upward direction where the heat exchanger 300 is positioned.
  • blower fan 420 there is provided a turbo fan that axially sucks the air by means of driving of a blower motor 421 and radially discharges the air.
  • an electric dust collector 500 is preferably provided at the front of the orifice 430.
  • the electric dust collector 500 includes a high voltage generator 510, an ionizing portion 520, and a collecting portion 530.
  • the high voltage generator 510 applies a high voltage to the ionizing portion 520 to induce discharge.
  • the ionizing portion 520 ionizes dust in the air using energy generated during discharge and irradiates light energy.
  • the collecting portion 530 collects the ionized dust.
  • the heat exchanger 300 is provided at the upper side of the blower fan 420 slantingly from the front to the rear, and is comprised of a refrigerant pipe that passes through refrigerant and a plurality of fins provided in the refrigerant pipe.
  • the heat exchanger 300 is connected with a refrigerant pipe (not shown) that guides to the outdoor unit the refrigerant evaporated or condensed by heat exchange with the air.
  • a fan 310 is arranged below the heat exchanger 300 to store condensed water therein.
  • the condensed water is generated on the surface of the heat exchanger 300 and dropped.
  • a drain hose (not shown) is connected to one side of the fan 310 to drain the condensed water outside the indoor unit.
  • the door driving gear 600 includes a door transfer unit transferring the left and right outlet doors 210 and 220, and a driving portion driving the door transfer unit.
  • the door transfer unit transfers the left and right outlet doors 210 and 220 in a horizontal direction so that the left and right air outlets 101 and 102 are opened and closed.
  • the door transfer unit in this embodiment is constructed in such a manner that it switches a rotational motion generated by the driving portion to a rectilinear motion and transfers the rectilinear motion to the air outlet doors 210 and 220.
  • the door transfer unit is not limited to such construction.
  • the door transfer unit includes a first transfer body 610 provided at the left outlet do or 210 and a second transfer body 620 provided at the right outlet door 220.
  • the first transfer body 610 and the second transfer body 620 are rotatably connected to the left outlet door 210 and the right outlet door 220, respectively.
  • the first and second transfer bodies are not limited to such case.
  • the first and second transfer bodies may be formed in a single body in the same manner as those of the second embodiment that will be described later.
  • the first transfer body 610 and the second transfer body 620 are separately provided to respectively transfer the left outlet door 210 and the right outlet door 220.
  • At least one or more hooks 611 and 621 are provided at any one of the left outlet door 210 and the first transfer body 610.
  • At least one or more shafts 210a and 220a are provided at the other of the left outlet door 210 and the first transfer body 610 and caught in the hooks 611 and 621 to form rotational shafts, so that the left outlet door 210 is rotatably connected with the first transfer body 610 and at the same time the left outlet door 210 is detachably connected with the first transfer body 610.
  • a plurality of the shafts 210a are provided at the right side end of the left outlet door 210, and a plurality of the hooks 611 respectively connected to the shafts 210a are provided at the left end of the first transfer body 610.
  • the right outlet door 220 and the second transfer body 620 are connected with each other in the same manner as the left outlet door 210 and the first transfer body 610.
  • a plurality of the shafts 220a are provided at the left end of the right outlet door 220, and a plurality of the hooks 621 respectively connected to the shafts 220a are provided at the right end of the second transfer body 620.
  • first transfer body 610 and the second transfer body 620 respectively connected to the left and right outlet doors 210 and 220 are preferably driven by a single motor 183.
  • the first transfer body 610 includes a first door link portion 612 and a first rack bar 613.
  • the first door link portion 612 is provided with the hooks 611 connected to the shafts 210a of the left outlet door.
  • the first rack bar 613 is extended from the right side of the first door link portion 612 to the second transfer body 620 at a predetermined length.
  • the second transfer body 620 includes a second door link portion 622 and a second rack bar 623.
  • the second door link portion 622 is provided with the hooks 621 connected to the shafts 220a of the right outlet door.
  • the second rack bar 623 is extended from the left side of the second door link portion 622 to the first transfer body 610 at a predetermined length.
  • the first rack bar 613 and the second rack bar 623 are respectively provided with a first rack 613a and a second rack 623a.
  • the first rack 613a and the second rack 623a are preferably engaged with a pinion gear 631 rotated by a motor 630.
  • the motor 630 is provided in the driving portion.
  • the pinion gear 631 may directly be fixed to a shaft of the motor 630 to simplify its structure. Therefore, the door transfer unit can be driven by the single motor 630.
  • the driving portion including the motor 630 is provided at a middle portion of the fitting plate 160 provided with the door driving gear.
  • the first rack bar 613 is provided below the pinion gear 631, and the second rack bar 623 is provided above the pinion gear 631 in parallel with the first rack bar 613.
  • the first rack 613a is formed along the upper side of the first rack bar 613 to be engaged with the lower end of the pinion gear 631
  • the second rack 632a is formed along the lower side of the second rack bar 623 to be engaged with the upper end of the pinion gear 631.
  • the door driving gear is provided with a guide that guides the door transfer unit.
  • An example of the guide includes guide bosses 641 and 642 and guide slots 651 and 652.
  • the guide bosses 641 and 642 are formed at any one of the cabinet 100 and the door transfer unit.
  • the guide slots 651 and 652 are longitudinally formed at the other of the cabinet 100 and the door transfer unit in a transfer direction of the door transfer unit.
  • the guide slots 651 and 652 are formed at a part of the first transfer body 610 and the second transfer body 620, particularly, the door link portions 612 and 622.
  • the guide bosses 641 and 642 corresponding to the guide slots 651 and 652 are projected from the fitting plate 160 of the cabinet to the front and respectively inserted into the guide slots 651 and 652.
  • the guide bosses 641 and 642 and the guide slots 651 and 652 guide the first transfer body 610 and the second transfer body 620 when the first transfer body 610 and the second transfer body 620 are transferred in a horizontal direction by rotation of the pinion gear 631.
  • the guide further includes a support that guides the door transfer unit, i.e., the first transfer body 610 and the second transfer body 620 and at the same time prevents the first and second transfer bodies 610 and 620 from being detached from the door transfer unit.
  • a first support rib 653a and a second support rib 653b are provided I n the indoor unit of the air-conditioning system according to the present invention.
  • the first support rib 653a supports one side of the first transfer body 610 while the second support rib 653b supports the second transfer body 620.
  • first support rib 653a is projected from the fitting plate 160 to the front to adjoin the lower side of the first rack bar 613 while the second support rib 653b is projected from the fitting plate 160 to the front to adjoin the upper side of the second rack bar 623.
  • the first support rib 653a has a ' ⁇ ' shaped vertical section to improve its strength and minimize friction.
  • the second support rib 653b has a ' ⁇ ' shaped vertical section.
  • the first support rib 653a and the second support rib 653b constructed as above may be provided separately from the fitting plate 160 to be assembled into the fitting plate 160.
  • the support may be formed in a rotatable roller type, particularly a train wheel shaped roller type.
  • the indoor unit of the air-conditioning system is preferably provided with a friction damper that minimizes friction between the door transfer unit and the cabinet 100.
  • the friction damper includes first and second slip ribs 661 and 662 projected at one side of the door transfer units 610 and 620 and the cabinet.
  • first slip rib 661 is formed at the rear side of the first transfer body 610
  • second slip rib 662 is formed at the rear side of the second transfer body 620.
  • slip ribs 661 and 662 are respectively formed at the rear sides of the first door link portion 612 and the second door link portion 622.
  • first door link portion 612 and the second door link portion 622 may respectively have bent portions 612a and 622a at a portion where the slip ribs 661 and 662 are formed.
  • the bent portions 612a and 622a have a " ⁇ " shaped vertical section and are projected toward the rear.
  • the slip ribs 661 and 662 are linearly in contact with the fitting plate 160 to minimize friction between the slip ribs 661 and 662 an d the cabinet 100, particularly, between the slip ribs 661 and 662 and the front surface of the fitting plate 160.
  • the friction damper may be comprised of a roller (not shown) provided at least one side of the fitting plate 160 of the cabinet and the door transfer unit.
  • the first transfer body 610 is preferably flush with the second transfer body 620 to minimize a space occupied by the door transfer unit.
  • the door transfer unit further includes an interference preventing portion that prevents interference between the first transfer body 610 and the second transfer body 620 when the left and right outlet doors 210 and 220 are opened.
  • the interference preventing portion includes a first interference preventing groove 614 and a second interference preventing groove 624.
  • the first interference preventing groove 614 is formed in the first transfer body 610 to prevent interference with the second rack bar 623.
  • the second interference preventing groove 624 is formed in the second transfer body 620 to prevent interference with the first rack bar 613.
  • first interference preventing groove 614 is formed in the first door link portion 612 while the second interference preventing groove 624 is formed in the second door link portion 622.
  • the indoor unit of the air-conditioning system according to the present invention further includes a door guide that guides the left and right outlet doors 210 and 220.
  • the door guide includes door guide grooves 671a and 671b and door guide bosses 672a and 672b.
  • the door guide grooves 671a and 671b are formed at any one side of the left and right outlet doors 210 and 220 and the cabinet while the door guide bosses 672a and 672b are formed at the other side of the left and right outlet doors 210 and 220 and the cabinet.
  • the first door guide groove 671a is formed at the left air outlet 101
  • the second door guide groove 671b is formed at the right air outlet 102.
  • the left outlet door 210 is provided with the first door guide boss 672a that moves along the first door guide groove 671a
  • the right outlet door 220 is provided with the second door guide boss 672b that moves along the second door guide groove 671b.
  • the respective door guide grooves 671a and 671b are longitudinally formed at the upper edges of the left and right air outlets 101 and 102 in left and right directions.
  • the respective door guide bosses 672a and 672b are provided at the upper portions of the left and right outlet doors 210 and 220.
  • the door driving gear is driven so that the left and right outlet doors 210 and 220 are simultaneously opened by horizontal movement, and the upper door 230 is also opened.
  • the left and right outlet doors 210 and 220 are transferred by the first and second transfer bodies 610 and 620, which are simultaneously transferred by rotation of the pinion gear 631, to respectively open the left and right air outlets.
  • the left inlet vanes 143 and 144 are respectively opened by rotation to open the left and right air inlets 105 and 106.
  • the indoor air is sucked into the cabinet through the respective air inlets 104, 105 and 106 as the blower 400 is driven.
  • the sucked air is purged while passing through the air filters 161a and 162a and the filter assembly 163 constituting an air purging system.
  • the air sucked through the front air inlet 104 of the base 130 is purged while passing through the filters 163a, 163b and 163c provided in the filter assembly 163.
  • the air sucked through the left and right air inlets 105 and 106 is purged while passing through the air filters 161a and 162a.
  • the air that has passed through the air filters 161a and 162a and the filter assembly 163 passes through the electric dust collector 500 positioned at the front of the blower 400.
  • the electric dust collector 500 ionizes dust in the air and odor particles and then collects the ionized dust and the ionized odor particles.
  • the air purged as above is blown toward the heat exchanger 300 by the blower 400 and is discharged into the indoor through the air outlets 101, 102 and 103 in a state that it is cooled or heated by heat exchange with the refrigerant flowing inside the heat exchanger, thereby carrying out room cooling or room heating.
  • the left and right wind vanes 141 and 142 control the discharged air.
  • the left and right outlet doors 210 and 220 are transferred in a horizontal direction by the first and second transfer bodies 610 and 620 transferred by rotation of the pinion gear 631 and at the same time are closed.
  • the upper door 230 and the left and right inlet vanes 143 and 144 are closed by the respective driving motors to prevent foreign matters from being flown into the cabinet 100.
  • the upper door and the inlet vanes depends on room cooling, room heating, and the air blowing amount for air purging.
  • the indoor unit is mainly driven for air purging, the left and right air inlets 105 and 106 are sealed and the air is sucked through the front air inlet 104 only.
  • an air purging mode may be carried out in a state that the air outlets 101, 102 and 103 are all opened, the left and right air outlets 101 and 102 are sealed by the left and right outlet doors 210 and 220 and the upper air outlet 103 is only opened considering balance with air suction.
  • the air flown into the cabinet 100 through the front air inlet 104 is purged so that fine dust and odor particles are removed from the air while passing through the filter assembly 163 and the electric dust collector 500. Then, the air is discharged to the indoor place through the upper air outlet 103.
  • a left air inlet 105a is formed at the left slant surface 111b of the lower half of the cabinet, and a right air inlet 106a is formed at the right slant surface 113b of the lower half of the cabinet.
  • the left and right air inlets 105a and 106a may be opened and closed by an inlet door (not shown) operated in the same manner as that of the aforementioned left and right outlet doors 210 and 220.
  • the left and right inlet vanes 143 and 144 in the first embodiment are replaced with left and right inlet grills 145 and 146.
  • the left and right inlet grills 145 and 146 are respectively provided in the left and right air outlets 105 and 106.
  • the left and right inlet grills 145 and 146 are detachably provided.
  • the indoor unit of the air-conditioning system includes a left air outlet 101a and a right air outlet 102a respectively formed at the upper portions of the left and right sides 112a and 114a of the front cabinet.
  • the left air outlet 101a and the right air outlet 102a are respectively provided with a left outlet vane 141b and a right outlet vane 142b that are rotatable.
  • the left outlet vane 141b and the right outlet vane 142b control the wind of the air discharged from the left and right air outlets 101a and 102a and at the same time open and close the left and right air outlets 101a and 102a, respectively.
  • the door driving gear 180 is not required essentially.
  • the indoor unit of the air-conditioning system according to the present invention has the following advantages.
  • the conditioned air can be supplied to the indoor place uniformly and quickly.
  • the indoor unit of the air-conditioning system according to the present invention can be arranged properly depending on arrangement of furniture or indoor structure, it is possible to improve space utility.
  • the indoor unit of the air-conditioning system since the conditioned air can quickly reach the user located at the front of the indoor unit, the indoor unit is provided at one side along a longitudinal direction of the room having the width narrower than the length, thereby quickly and uniformly supplying the conditioned air to the entire room.
  • the left and right air outlets are formed at a portion different from that of the left and right air inlets, it is possible to prevent the air discharged from the cabinet from being mixed with the air sucked into the cabinet, thereby preventing the discharged air from again flowing into the cabinet.
  • the indoor unit of the air-conditioning system since the conditioned air can quickly reach the user located next to the indoor unit, the indoor unit is provided at a middle portion of a relatively long wall, thereby quickly and uniformly supplying the conditioned air to the entire room.
  • the third embodiment and the fourth embodiment of the present invention since the left and right air inlets are respectively formed at both sides of the cabinet, it is possible to previously avoid any accident that may be caused when children play at the front of the indoor unit.
  • the left and right air outlets and the left and right air inlets are longitudinally formed in up and down directions, the conditioned air can uniformly be supplied to the user and air flow can be increased.
EP05258107A 2004-12-29 2005-12-29 Indoor unit of air-conditioning system Not-in-force EP1686324B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040115324A KR100727461B1 (ko) 2004-12-29 2004-12-29 공기조화기의 실내기

Publications (2)

Publication Number Publication Date
EP1686324A1 EP1686324A1 (en) 2006-08-02
EP1686324B1 true EP1686324B1 (en) 2009-12-16

Family

ID=36090938

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Application Number Title Priority Date Filing Date
EP05258107A Not-in-force EP1686324B1 (en) 2004-12-29 2005-12-29 Indoor unit of air-conditioning system

Country Status (5)

Country Link
EP (1) EP1686324B1 (ko)
KR (1) KR100727461B1 (ko)
CN (2) CN100552317C (ko)
DE (1) DE602005018320D1 (ko)
WO (1) WO2006071067A2 (ko)

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ES2275405B1 (es) * 2005-05-10 2008-05-01 Universitat Politecnica De Catalunya Unidad interior de un equipo de aire acondicionado.
JP4274229B2 (ja) * 2006-11-10 2009-06-03 ダイキン工業株式会社 空気調和機
JP2008175459A (ja) * 2007-01-18 2008-07-31 Sanyo Electric Co Ltd 床置き式空気調和機
CN101235986B (zh) * 2008-03-02 2010-12-15 海信（山东）空调有限公司 柜式空调室内机
KR101450564B1 (ko) * 2008-11-07 2014-10-14 엘지전자 주식회사 공기조화기
EP2208941A3 (en) * 2009-01-15 2014-08-27 Samsung Electronics Co., Ltd. Air conditioner
JP2011137566A (ja) * 2009-12-25 2011-07-14 Mitsubishi Heavy Ind Ltd 空気調和機
KR20110075475A (ko) * 2009-12-28 2011-07-06 엘지전자 주식회사 공기조화기
KR101868371B1 (ko) * 2011-10-21 2018-06-18 엘지전자 주식회사 스텐드형 공기조화기
KR101880482B1 (ko) * 2011-10-21 2018-07-20 엘지전자 주식회사 스텐드형 공기조화기
CN104676764B (zh) * 2013-11-28 2018-07-10 美的集团股份有限公司 空调器
JP6477126B2 (ja) * 2014-04-08 2019-03-06 ダイキン工業株式会社 床置き型の空調室内ユニット
CN104315693B (zh) * 2014-08-18 2017-02-22 珠海格力电器股份有限公司 空调器
KR20190124633A (ko) * 2018-04-23 2019-11-05 엘지전자 주식회사 공기조화기의 실내기

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KR100323515B1 (ko) * 1999-02-24 2002-02-06 구자홍 3면 토출형 공기 조화기
KR100381160B1 (ko) * 2000-09-01 2003-04-23 주식회사 엘지이아이 공기조화기
KR100376789B1 (ko) * 2000-09-01 2003-03-19 만도공조 주식회사 에어콘용 프론트 패널의 흡입구
US7028506B2 (en) * 2001-10-15 2006-04-18 Lg Electronics Inc. Indoor unit of packaged air conditioner
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JP2003343871A (ja) * 2002-05-29 2003-12-03 Daikin Ind Ltd 床置き形空気調和機

Also Published As

Publication number Publication date
WO2006071067A2 (en) 2006-07-06
EP1686324A1 (en) 2006-08-02
KR20060075945A (ko) 2006-07-04
KR100727461B1 (ko) 2007-06-13
CN101476756B (zh) 2012-08-08
CN101476756A (zh) 2009-07-08
CN1796892A (zh) 2006-07-05
WO2006071067A3 (en) 2009-05-07
DE602005018320D1 (de) 2010-01-28
CN100552317C (zh) 2009-10-21

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