EP4394262A1 - Unité intérieure de climatiseur - Google Patents

Unité intérieure de climatiseur Download PDF

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Publication number
EP4394262A1
EP4394262A1 EP23220339.8A EP23220339A EP4394262A1 EP 4394262 A1 EP4394262 A1 EP 4394262A1 EP 23220339 A EP23220339 A EP 23220339A EP 4394262 A1 EP4394262 A1 EP 4394262A1
Authority
EP
European Patent Office
Prior art keywords
outlet
indoor unit
air
discharge
blower fan
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.)
Pending
Application number
EP23220339.8A
Other languages
German (de)
English (en)
Inventor
Dohyung Kim
Yuheon JUNG
Jichan JUNG
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
Priority claimed from KR1020230068978A external-priority patent/KR20240102790A/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP4394262A1 publication Critical patent/EP4394262A1/fr
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—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
    • F24F1/0057—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
    • 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 separate-type air conditioner is usually installed by placing an indoor unit upright in an indoor space, hanging the indoor unit on a wall, or embedding the indoor unit in a ceiling, while the integrated-type air conditioner is installed by drilling a hole in a wall of a house, installing a device on a window, or being placed outdoors and connected to an indoor space by a duct.
  • An indoor unit of an air conditioner according to the present disclosure may be characterized in that some of a plurality of discharge guides are configured to have two portions with different inclination angles, and a portion located relatively inward has a smaller inclination angle.
  • the plurality of discharge guides may include at least one of: a main discharge guide and an auxiliary discharge guide.
  • the main discharge guide may have a first inclination angle, e.g. with a plane perpendicular to a rotation axis of the blower fan and/or with a baseline perpendicular to a rotation axis of the blower fan and/or with a baseline intersecting a rotation axis of the blower fan.
  • the auxiliary discharge guide may include a first portion that has the first inclination angle and a second portion that has a second inclination angle, e.g.
  • the second inclination angle may be less than the first inclination angle.
  • the first and/or second inclination angle may be less than 90°.
  • the blower fan may be configured to draw in air through the inlet through/via the heat exchanger. That is, air drawn in through the inlet by the blower fan may pass through the heat exchanger.
  • the plurality of discharge guides may be configured to control a direction of the air discharged to/through the outlet. That is, a direction of the discharged air may be controlled by the discharge guides, e.g. by passing therethrough.
  • the outlet 16 may include a first outlet 16a, 16b and a second outlet 16c.
  • the first outlet 16a, 16b may include a left outlet 16a that is disposed at a left side of the cabinet 10 and a right outlet 16b that is disposed at a right side of the cabinet 10.
  • the second outlet 16c may be disposed at a bottom side of the cabinet 10.
  • the left outlet 16a and the right outlet 16b which are configured to guide air discharged from the blower fan 14 to an outside of the cabinet 10, are formed on both sides of the blower fan 14, namely, both sides of the base 12.
  • the link assembly 3 may include a link 3a and a link motor 3b.
  • the outlet 16 defines a discharge passage that covers the left-and-right direction by the discharge passage front side 162, the discharge passage rear side 161, the discharge passage lower side 166, and the discharge passage upper side 164.
  • the discharge passage front side 162 is positioned forward relative to the discharge passage rear side 161.
  • the discharge end of the outlet 16 is a left end in the case of the left outlet 16a and a right end in the case of the right outlet 16b.
  • the right outlet 16b has the same configuration as the left outlet 16a.
  • the second inclination angle ⁇ 2 is less than the first inclination angle ⁇ 1.
  • the second inclination angle ⁇ 2 has a range of 2 to 6 degrees
  • the first inclination angle ⁇ 1 has a range of 15 to 30 degrees.
  • the discharge passage rear side 161 may have a third inclination angle ⁇ 3 with the baseline BL, and the third inclination angle ⁇ 3 may be less than the first inclination angle ⁇ 1 of each of the main discharge guide 412a and the first portion 412b-1 of the auxiliary discharge guide 412b.
  • the third inclination angle ⁇ 3 may be equal to the second inclination angle ⁇ 2.
  • the third inclination angle ⁇ 3 may have a range of 1 to 7 degrees, and the third inclination angle ⁇ 3 may be different from the second inclination angle ⁇ 2.
  • the discharge passage rear side 161 may be inclined upward toward the outside (left and right sides). A slope of the discharge passage rear side 161 may be constant or increase toward the outside. A length of the discharge passage rear side 161 in the left-and-right direction may be greater than a length of the main discharge guide 412a in the left-and-right direction and a length of the auxiliary discharge guide 412b in the left-and-right direction.
  • the second portion 412b-2 may be located on the same plane as the discharge passage rear side 161.
  • An upper end of the second portion 412b-2 and an upper end of the discharge passage rear side 161 may be located on the same straight line on a cross section.
  • resistance of air entering the auxiliary discharge guide 412b from the outlet 16 may be reduced to thereby prevent a decrease in flow velocity.
  • a rear guide 163 may be connected to a right end of the discharge passage rear side 161.
  • the rear guide 163 compensates for a length difference between upper and lower portions of the centrifugal fan and guides air discharged from the centrifugal fan to the discharge passage rear side 161.
  • the rear guide 163 may be disposed to be inclined upward toward the outside, and an inclination angle of the rear guide 163 may be less than the inclination angle of the main discharge guide 412a and greater than the inclination angle of the discharge passage rear side 161.
  • the discharge passage front side 162 may include a first front portion 162a that is parallel to the discharge passage rear side 161, and a second front portion 162b that is parallel to the main discharge guide 412a.
  • the first front portion 162a is disposed closer to the blower fan 14 compared to the second front portion 162b.
  • An outer end of the second front portion 162b may be in contact with an inner end of the main discharge guide 412a located at the foremost position among the main discharge guides 412a.
  • a lower surface of the second front portion 162b may be disposed on the same straight line on a cross section as a lower surface of the main discharge guide 412a located at the foremost position among the main discharge guides 412a.
  • the lower surface of the second front portion 162b is located on the same straight line on the cross section as the lower surface of the main discharge guide 412a located at the foremost position among the main discharge guides 412a, it is possible to reduce resistance of air entering the main discharge guide 412a located at the foremost position to thereby prevent a decrease in flow velocity.
  • the main discharge guide 412a and the auxiliary discharge guide 412b are installed at the left outlet 16a and the right outlet 16b.
  • the plurality of discharge guides 412 may be integrally formed with the base 12, however, for ease of manufacturing, the plurality of discharge guides 412 are preferably formed in the side cover 41, 42.
  • FIGS. 7 and 8 illustrate the left cover 41, however, the right cover 42 has the same structure as the left cover 41.
  • FIG. 7 is a perspective view of a left cover according to an embodiment of the present disclosure
  • FIG. 8 is a longitudinal cross-sectional view of the left cover of FIG. 7 .
  • the side cover 41, 42 includes a cover plate 411 coupled to the cabinet 10, and a cover opening 413 formed through the cover plate 411 and disposed corresponding to the outlet 16 to allow air discharged to the outlet 16 to be discharged therethrough.
  • the cover plate 411 may be provided with a coupling element coupled to the base 12.
  • the cover plate 411 may cover at least the outlet 16.
  • the cover plate 411 may have a shape and a size corresponding to each surface of the base 12, and may cover both side surfaces of the base 12.
  • the cover opening 413 may be formed through the cover plate 411, and may be positioned to correspond to the outlet 16. Air discharged to the outlet 16 is discharged through the cover opening 413.
  • the plurality of discharge guides 412 may be disposed in the cover opening 413.
  • the cover opening 413 may be defined by an opening edge (421, 422, 424, 425), and the opening edge (421, 422, 424, 425) may include a front edge 425 that extends in a direction parallel to the discharge guide 412, a rear edge 424 that faces the front edge 425, an upper edge 421 that connects an upper end (or top) of the front edge 425 and an upper end (or top) of the rear edge 424, and a lower edge 422 that connects a lower end (or bottom) of the front edge 425 and a lower end (or bottom) of the rear edge 424.
  • the opening edge 421, 422, 424, 425 may be disposed corresponding to the discharge passage side of the outlet 16.
  • the front edge 425 may be or include the main discharge guide 412a located at the foremost position among the main discharge guides 412a
  • the rear edge 424 may be or include the auxiliary discharge guide 412b.
  • resistance of air in a connecting portion between the side cover 41, 42 and the outlet 16 can be reduced.
  • the front edge 425 and the main discharge guide 412a may be provided separately, the rear edge 424 and the auxiliary discharge guide 412b may be provided separately, and the opening edge 421, 422, 424, 425 may be disposed to correspond to the discharge passage side of the outlet 16.
  • a seating groove 165 in which the upper edge 421 and the lower edge 422 are seated may be formed in the base 12.
  • the upper edge 421 and the lower edge 422 protrude inward from the cover plate 411.
  • the opening edge 421, 422, 424, 425 may include a rounded portion 430 with a curvature.
  • the rounded portion 430 is formed on each of the upper edge 421 and the lower edge 422. More specifically, one end of the opening edge 421, 422, 424, 425 is connected to one end of the cover plate 411, and the rounded portion 430 is positioned at a portion where the opening edge 421, 422, 424, 425 and the cover plate 411 are connected.
  • the rounded portion 430 is eccentric from the opening edge 421, 422, 424, 425 to a direction away from the blower fan 14.
  • a center of a radius of curvature of an upper rounded portion 431 formed on the upper edge 421 may be located upward relative to the discharge passage front side 164 and located inward relative to the cover plate 411.
  • the heat exchanger 50 is positioned between the inlet 15 and the orifice 13.
  • the orifice 13 is positioned between the heat exchanger 50 and the blower fan 14.
  • the inlet 15 may be positioned forward relative to the heat exchanger 50 and the orifice 13.
  • the outlet 16 may be positioned rearward relative to the heat exchanger 50 and the orifice 13. At least a portion of the blower fan 14 may be positioned to vertically overlap the outlet 16.
  • the drain pan 100 is disposed under the heat exchanger 50 to collect condensate falling from the heat exchanger 50.
  • the drain pan 100 may vertically overlap the heat exchanger 50, and may have a width greater than a width of the heat exchanger 50.
  • the drain pan 100 may include a first drain member 101 that is positioned forward relative to the heat exchanger 50, a second drain member 102 that is positioned rearward relative to the heat exchanger 50, and a third drain member 103 that connects lower ends of the first drain member 101 and the second drain member 102.
  • the condensate dropped from the heat exchanger 50 may flow along a space between the first drain member 101 and the second drain member 102. This prevents the condensate dropped from the heat exchanger 50 from being introduced into the second outlet 16c.
  • the drain pan 100 may further include a fourth drain member 104 that is disposed between the first drain member 101 and the second drain member 102 and supports the heat exchanger 50.
  • the orifice 13 guides air introduced from the inlet 15 to the blower fan 14, and supplies the air to the blower fan 14 by decompressing the air introduced from the inlet 15 to the blower fan 14.
  • the orifice 13 may include a guide hole 131.
  • the orifice 13 may have a size that covers at least the inlet 15 and the heat exchanger 50.
  • the guide hole 131 has a smaller cross-sectional area than the inlet 15 and the heat exchanger 50, and is formed through the orifice 13.
  • the guide hole 131 allows air introduced through the inlet 15 to be reduced in pressure and guides the air to the blower fan 14.
  • the cross-sectional area of the guide hole 131 may decrease in a direction from the inlet 15 to the blower fan 14.
  • the orifice 13 may further include a guide edge 132 that covers the guide hole 131 and protrudes rearward from a main body 133.
  • the guide edge 132 may define a boundary of the guide hole 131.
  • the guide edge 132 may have a ring shape and may be inclined in a direction to the rotation axis Ax of the blower fan 14 toward the rear.
  • the orifice 13 of the present disclosure further includes a condensate inflow prevention portion 135.
  • the condensate water inflow prevention portion 135 is formed at the bottom of the guide hole 131.
  • the lower end of the orifice 13 is positioned below the lower end of the heat exchanger 50, the bottom of the guide hole 131 is positioned above the lower end of the heat exchanger 50, and the upper end of the condensate inflow prevention portion 135 is positioned above the bottom of the guide hole 131.
  • the second drain member 102 of the drain pan 100 may be positioned rearward relative to a lower end of the main body 133 of the orifice 13, and the first drain member 101 and the fourth drain member 104 may be positioned forward relative to the lower end of the main body 133. Due to this structure, some of the condensate falling from the drain pan 100 can be prevented from being introduced into a space between the drain pan 100 and the lower end of the main body 133.
  • the condensate inflow prevention portion 135 may extend upward from the bottom of the guide hole 131, but may have various structures for effectively preventing the inflow of condensate.
  • the lower passage front side 167 is spaced apart from the lower passage rear side 168 to be positioned forward relative to the lower passage rear side 168.
  • a lower end of the orifice 13 may be supported on an upper end of the lower passage front side 167.
  • the upper end of the lower passage front side 167 supports a lower end of the guide edge 132 of the orifice 13.
  • the control vane 510 may be rotatably installed on the second outlet 16c by the hinge 511.
  • the control vane 510 is rotatably installed on the lower passage rear side 168 by the hinge 511.
  • the direction of a rotation axis of the hinge 511 may be a direction that intersects the front-and-rear direction and the up-and-down direction.
  • the direction of the rotation axis of the hinge 511 is parallel to the left-and-right direction.
  • the control vane 510 has a structure that allows the second outlet 16c to be closed effectively when the control vane 510 closes the second outlet 16c and does not increase resistance of air passing through the second outlet 16c when the control vane 410 opens the second outlet 16c.
  • control vane 510 may include a first vane portion 512 that is connected to the hinge 511, and a second vane portion 513 that is connected to one end of the first vane portion 512.
  • a plurality of grooves 516 may be formed in front surfaces of the first vane portion 512 and the second vane portion 513.
  • the plurality of grooves 516 may extend in the left-and-right direction. The formation of dew on the control vane 510 can be prevented due to the plurality of grooves 516.
  • a first vane protrusion 515 may be formed on one end of the first vane portion 512.
  • the first vane protrusion 515 may be formed by protruding from the first vane portion 512.
  • the first vane protrusion 515 may extend in a direction intersecting the first vane portion 512. Specifically, the first vane protrusion 515 may protrude forward from the front surface of the first vane portion 512.
  • a second vane protrusion 514 may be formed on one end of the second vane portion 513.
  • the second vane protrusion 514 may be formed by protruding from the second vane portion 513.
  • the second vane protrusion 514 may extend in a direction intersecting the second vane portion 513. Specifically, the second vane protrusion 514 may protrude forward from the front surface of the second vane portion 513.
  • the first vane protrusion 515 and the second vane protrusion 514 allow the contact area between the control vane 510 and each of the lower passage front side 167 and the lower passage front side 168 to increase, thereby suppressing air from being discharged to a space between the control vane 510 and each of the lower passage front side 167 and the lower passage front side 168.
  • the first hidden surface 169b may extend parallel to the vertical direction.
  • the first hidden surface 169b may be connected to the lower passage rear side 168 by a recessed surface 169a.
  • the present disclosure may further include a temperature sensor 525, a humidity sensor 530, and a controller 560.
  • the temperature sensor 525 may be installed at the cabinet 10. Specifically, the temperature sensor 525 may be installed to be adjacent to the left inlet 16a or the right inlet 16b. The temperature sensor 525 may provide temperature information to the controller 560.
  • the controller 560 may determine that the dew formation condition is satisfied.
  • the controller 560 may increase the rotational speed of the fan motor 14a from a current rotational speed.
  • the rotational speed of the fan motor 14a is increased from the current rotational speed based on the dew formation condition being satisfied, the formation of dew on the outlet 16 can be prevented.
  • the controller 560 determines a dew formation condition (S40).
  • the controller 560 may increase the rotational speed of the fan motor 14a from a current rotational speed (S60).
  • a front side of the outlet is configured to have a portion with an angle equal to an inclination angle of the discharge guide and a portion with an angle lower than the inclination angle of the discharge guide, a smooth change in direction can be made when the direction of air is changed at the front of the outlet through the discharge guide. Thus, the formation of dew on the front side of the outlet can be prevented.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
EP23220339.8A 2022-12-26 2023-12-27 Unité intérieure de climatiseur Pending EP4394262A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20220184394 2022-12-26
KR1020230068978A KR20240102790A (ko) 2022-12-26 2023-05-30 공기조화기의 실내기

Publications (1)

Publication Number Publication Date
EP4394262A1 true EP4394262A1 (fr) 2024-07-03

Family

ID=89386201

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23220339.8A Pending EP4394262A1 (fr) 2022-12-26 2023-12-27 Unité intérieure de climatiseur

Country Status (1)

Country Link
EP (1) EP4394262A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060011656A (ko) 2004-07-30 2006-02-03 삼성전자주식회사 패킷 투 빅 메시지를 이용하여 아이피브이식스 천이터널에서 패킷 최대전송단위를 설정하는 시스템 및 그 방법
EP2918930A1 (fr) * 2012-09-13 2015-09-16 Daikin Industries, Ltd. Unité intérieure de climatisation
KR20160085355A (ko) 2013-12-02 2016-07-15 유니버시티 오브 써던 캘리포니아 나노 구조의 지지체 상의 개질된 아민의 재생 흡착제
US20200284441A1 (en) * 2019-03-04 2020-09-10 Lg Electronics Inc. Indoor unit for air conditioner
CN114763930A (zh) * 2021-01-13 2022-07-19 Lg电子株式会社 空调机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060011656A (ko) 2004-07-30 2006-02-03 삼성전자주식회사 패킷 투 빅 메시지를 이용하여 아이피브이식스 천이터널에서 패킷 최대전송단위를 설정하는 시스템 및 그 방법
EP2918930A1 (fr) * 2012-09-13 2015-09-16 Daikin Industries, Ltd. Unité intérieure de climatisation
KR20160085355A (ko) 2013-12-02 2016-07-15 유니버시티 오브 써던 캘리포니아 나노 구조의 지지체 상의 개질된 아민의 재생 흡착제
US20200284441A1 (en) * 2019-03-04 2020-09-10 Lg Electronics Inc. Indoor unit for air conditioner
CN114763930A (zh) * 2021-01-13 2022-07-19 Lg电子株式会社 空调机

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