WO2019065530A1 - 空調室内機 - Google Patents
空調室内機 Download PDFInfo
- Publication number
- WO2019065530A1 WO2019065530A1 PCT/JP2018/035160 JP2018035160W WO2019065530A1 WO 2019065530 A1 WO2019065530 A1 WO 2019065530A1 JP 2018035160 W JP2018035160 W JP 2018035160W WO 2019065530 A1 WO2019065530 A1 WO 2019065530A1
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- WO
- WIPO (PCT)
- Prior art keywords
- wind direction
- panel
- air
- indoor unit
- blade
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
Definitions
- the present invention relates to an air conditioning indoor unit.
- Patent Document 1 Japanese Patent Laid-Open No. 2009-97755
- the temperature of the air passing through the outlet is detected, and it is determined that condensation is generated in the wind direction adjusting blade. It turns to a position that makes a dew attachment safety angle that is a small angle with respect to the blowing direction, and when it is judged that no condensation occurs, it makes a position that makes an angle larger than the dew attachment safety angle with respect to a predetermined blowing direction. It is rotating.
- the subject of this invention is providing the air-conditioning indoor unit which can make the wind direction adjustment range of the blowing air by a wind direction adjustment blade
- the air conditioning indoor unit is a wall-mounted air conditioning indoor unit including a wind direction adjusting blade for adjusting the wind direction of the blown air in the vertical direction, and the wind direction adjusting blade is on the end side in the longitudinal direction. It has at least one through hole through which a part of the blown air passes in the thickness direction.
- the blowout air flowing along the lower surface of the wind direction adjusting blade peels off around the curved portion of the lower surface, so the warm air in the room enters there and dew condensation occurs at the point where the warm air and the cold blowout air merge. It occurs. In particular, condensation tends to occur on the end side of the wind direction adjustment blade.
- the air passing through the through hole flows toward the downstream side of the lower surface by providing the through hole which allows a part of the blowout air to pass in the thickness direction, so along the lower surface from the upstream side It attracts the flowing out air and prevents it from peeling from the lower surface. As a result, the warm air does not enter and the occurrence of condensation is suppressed.
- An air conditioning indoor unit is the air conditioning indoor unit according to the first aspect, wherein the through hole is a long hole parallel to the longitudinal direction of the wind direction adjusting blade.
- An air conditioning indoor unit is the air conditioning indoor unit according to the first aspect or the second aspect, and the through hole guides a part of the blown air forward and downward during the cooling operation.
- the air having passed through the through hole can easily flow toward the downstream side of the lower surface by guiding a part of the blown air forward and downward through the through hole.
- An air conditioning indoor unit is the air conditioning indoor unit according to any one of the first aspect to the third aspect, wherein the through hole moves downward as it approaches the tip of the wind direction adjusting blade It is inclined to
- An air conditioning indoor unit is the air conditioning indoor unit according to any one of the first to fourth aspects, wherein the wind direction adjusting blade is downstream of the center of the flow direction of the blown air.
- An air conditioning indoor unit is the air conditioning indoor unit according to any one of the first to fifth aspects, further comprising a vertical blade.
- the vertical vanes adjust the wind direction of the air flowing toward the wind direction adjusting vanes in the lateral direction by swinging the vertical plane to the left and right.
- the wind direction adjusting blade is closest to the region from the area where the virtual plane including the vertical plane of the vertical blade at the end opposite to the swing direction intersects the wind direction adjusting blade At least a part of the through hole hangs in the section to the end of the.
- the section to the right of the intersection area of the virtual plane including the vertical plane of the vertical blade on the rightmost side and the wind direction adjusting blade has no momentum in the air flow, and the wind direction adjusting blade Is easy to separate from the lower surface of the case, it is easy for the warm air to enter the room, and condensation is likely to occur.
- this air conditioning indoor unit by providing the through holes in the section, the air having passed through the through holes flows toward the downstream side of the lower surface, so that the outlet air flowing from the upstream side along the lower surface is drawn , To prevent peeling from the lower surface. As a result, the warm air does not enter and the occurrence of condensation is suppressed.
- An air conditioning indoor unit is the air conditioning indoor unit according to any one of the first to sixth aspects, and further includes a scroll for guiding the harmonized air to the outlet.
- the temperature of the adjusted air hereinafter referred to as the blowout temperature
- the angle between the tangent of the end of the scroll and the imaginary line connecting the front end and the rear end of the wind direction adjusting blade Is in the range of 0 to 35 °.
- the angle of the wind direction adjustment blade with respect to the scroll direction suppresses condensation occurring on the wind direction adjustment blade by maintaining the blow-off air along the wind direction adjustment blade at an angle that does not easily separate.
- it is necessary to raise the blowing temperature in order to prevent condensation from occurring or to be able to retain water even if it occurs.
- the angle can be reduced even if the blowing temperature is lowered during the cooling operation. As it can be tilted in the range of 0 to 35 °, it is easy to use.
- the air having passed through the through hole flows toward the downstream side of the lower surface by providing the through hole through which a part of the blown air passes in the thickness direction.
- the blowout air flowing along the lower surface is drawn from the lower surface to prevent separation from the lower surface. As a result, the warm air does not enter and the occurrence of condensation is suppressed.
- the through hole as an elongated hole parallel to the longitudinal direction of the wind direction adjusting blade, the air flows through the through hole toward the downstream side of the lower surface Since the air increases, the effect of attracting the blown air flowing from the upstream side along the lower surface is increased, and the separation from the lower surface becomes more difficult.
- the air having passed through the through hole is downstream of the lower surface by leading a part of the blown air forward and downward through the through hole. It becomes easy to flow toward the side.
- the air conditioning indoor unit when the vertical blade is at the maximum left deflection position, in the section to the right of the intersecting region of the virtual plane including the vertical surface of the vertical blade on the rightmost side and the wind direction adjusting blade.
- the air having passed through the through holes flows toward the downstream side of the lower surface, so that the blowout air flowing along the lower surface from the upstream side is attracted and prevented from being separated from the lower surface. As a result, the warm air does not enter and the occurrence of condensation is suppressed.
- a blowout temperature is set to 15 at the time of cooling operation by providing a through hole for passing a part of the blowout air in the thickness direction on the end side of the wind direction adjustment blade in the longitudinal direction. Even if the temperature is lowered to 0 ° C. or less, the angle can be inclined in the range of 0 to 35 °, which is convenient.
- the perspective view of the air conditioning indoor unit at the time of a shutdown The perspective view of the air-conditioning indoor unit under operation preparation.
- FIG. 9C is an enlarged perspective view showing a release state of the lock mechanism of FIG. 9A.
- FIG. 1A is a perspective view of the air conditioning indoor unit 1 at the time of operation stop.
- FIG. 1B is a perspective view of the air conditioning indoor unit 1 in preparation for operation.
- FIG. 2A is a side view of the air conditioning indoor unit 1 at the time of operation stop.
- FIG. 2B is a side view of the air conditioning indoor unit 1 in preparation for operation.
- FIG. 3 is a perspective view of the air conditioning indoor unit 1 during operation. 1A, 1B, 2A, 2B and 3, the air conditioning indoor unit 1 is of a wall hanging type, and includes an indoor unit main body 10 and a front panel 11 covering the front surface of the indoor unit main body 10.
- the front face of the outlet 5 is covered by the first panel 111, and the lower face of the outlet 5 is the first wind direction adjusting blade 30. Since the interior is concealed, the interior of the indoor unit main body 10 is not exposed to the human eye through the blowout port 5, and the design is good.
- the first panel 111 of the front panel 11 moves forward and upward to be the front of the second panel 112 before the operation is disclosed. Open Thereafter, as shown in FIG. 3, the first wind direction adjusting blade 30 located at the lower part of the indoor unit main body 10 rotates clockwise by 180 °, and the lower part of the outlet 5 is opened.
- FIG. 4 is a longitudinal sectional view of the air conditioning indoor unit 1 at the time of operation stop.
- FIG. 5 is a longitudinal sectional view of the air conditioning indoor unit 1 in preparation for operation.
- FIG. 6 is a longitudinal sectional view of the air conditioning indoor unit 1 at the time of operation.
- the indoor unit main body 10 includes a main body casing 100 forming an outer shell, a first wind direction adjusting blade 30, a second wind direction adjusting blade 40 and a vertical air direction adjusting blade 40 adjusting the blowing direction of conditioned air. It has 50. Further, inside the main body casing 100, the indoor heat exchanger 12, the fan 13, and the frame 16 are accommodated.
- the main casing 100 forms a substantially rectangular three-dimensional space by the front surface portion 101, the upper surface portion 102, and the lower surface portion 103, and the indoor heat exchanger 12, the fan 13, the frame 16, and the filter 9 are accommodated in the three-dimensional space. ing. Further, an upper suction port 4A (see FIG. 10) formed of a plurality of slits is provided in the upper surface portion 102. Furthermore, the blowout port 5 is provided from the lower part of the front face part 101 to the front part of the lower face part 103. A front suction port 4 ⁇ / b> B is provided on the front surface portion 101 above the blowout port 5.
- the indoor heat exchanger 12 and the fan 13 are attached to the frame 16.
- the indoor heat exchanger 12 exchanges heat with the passing air.
- the fan 13 blows the air taken in from the upper suction port 4A and the front suction port 4B to the blowout port 5 after passing through the indoor heat exchanger 12 and passing the air.
- the air outlet 5 is provided with a first air direction adjusting blade 30 and a second air direction adjusting blade 40 for guiding the air blown out in the vertical direction.
- the first wind direction adjusting blade 30 can be driven by a motor (not shown) to not only change the blowing direction of air but also open and close the outlet 5 on the lower surface portion 103 side.
- a vertical wind direction adjusting blade 50 for guiding air in the left-right direction is provided.
- a filter 9 is disposed between the front surface portion 101 and the top surface portion 102 of the main body casing 100 and the indoor heat exchanger 12. The filter 9 removes dust contained in the air flowing into the indoor heat exchanger 12.
- the indoor air is sucked into the fan 13 through the upper suction port 4A and the front suction port 4B, the filter 9, and the indoor heat exchanger 12 by the operation of the fan 13, and is blown out from the blowout port 5 from the fan 13 through the blowout flow path 18. Ru.
- the first wind direction adjusting blade 30 is stationary at a position covering the lower surface of the outlet 5 at the time of operation stop.
- the position is referred to as an initial position SP (see FIGS. 4 and 5).
- the lower surface of the first wind direction adjusting blade 30 is always visible to the human eye during the stop of the operation, so it is finished to be a good-looking surface, and is referred to as a cosmetic surface 30a here.
- the inner surface of the blowout port 5 is directed downward during operation and the blown air flows along, so it is referred to as a Coanda surface 30b here.
- the first wind direction adjusting blade 30 is rotated by a motor (not shown).
- a pivot shaft (not shown) of the first wind direction adjusting blade 30 is located about half of the height dimension of the air outlet 5 from the front end of the first wind direction adjusting blade 30 at the initial position SP.
- the first wind direction adjusting blade 30 faces the decorative surface 30a upward and the Coanda surface 30b downward. It projects forward from the upper part of the blower outlet 5 in a state of
- Second wind direction adjusting blade 40 The second wind direction adjusting blade 40 is located upstream of the air outlet 5 and above the initial position SP of the first wind direction adjusting blade 30 at the time of operation stop.
- the second wind direction adjusting blade 40 has an arc shape in cross section, and the convex side surface 40a faces downward and the concave side surface 40b faces upward.
- the second wind direction adjusting blade 40 may take a posture to direct the convex side surface 40 a upward and the concave side surface 40 b downward.
- the second wind direction adjusting blade 40 is rotated by a motor (not shown).
- the pivot shaft (not shown) of the second wind direction adjusting blade 40 is located above the concave side surface 40 b.
- the vertical wind direction adjusting blade 50 has a plurality of blade pieces 501 and a connecting rod 503 for connecting the plurality of blade pieces 501. Further, the vertical wind direction adjusting blade 50 is disposed at a position closer to the fan 13 than the first wind direction adjusting blade 30 and the second wind direction adjusting blade 40 in the blowout flow path 18.
- the connecting rod 503 horizontally reciprocates along the longitudinal direction of the blowout port 5
- the plurality of blade pieces 501 swings left and right around a state perpendicular to the longitudinal direction.
- the connecting rod 503 is horizontally reciprocated by a motor (not shown).
- Front panel 11 As shown in FIGS. 1A, 2A and 4, the front panel 11 is a member that covers the front of the indoor unit body 10.
- the front panel 11 is divided into upper and lower parts, and includes a first panel 111 located below and a second panel 112 located above the first panel 111.
- the first panel 111 and the second panel 112 both constitute a design surface of the air conditioning indoor unit 1, and the first panel 111 and the second panel 112 are constituted in the same pattern, color or their combination.
- the position of the first panel 111 when the operation is stopped and the position of the first panel 111 when the operation is performed are different.
- the surfaces of the first panel 111 and the second panel 112 are vertically aligned on the same vertical plane, and the surfaces of the first panel 111 and the second panel 112 Looks good because it produces an integrated beauty.
- the first panel 111 is set to be longitudinally longer than the second panel 112 in a front view.
- the vertical length of the second panel 112 is set to be the same as the height dimension of the front face of the blower outlet 5.
- the height position of the lower end of the 1st panel 111 and the lower end of the blower outlet 5 is so close that it is felt that it corresponds in a plain view.
- the height positions of the upper end of the second panel 112 and the upper end of the front surface portion 101 of the main body casing 100 are close enough to make the user feel that they match in a front view.
- the air conditioning indoor unit 1 starts operation, while the panel transport mechanism 21 causes the first panel 111 to simultaneously advance and rise, the first panel 111 is viewed from the upper end of the first panel 111 in a front view. It is moved to a height position where it is aligned with the upper end of the second panel 112. Thereby, the front surface of the blower outlet 5 is opened, and a space for introducing air is formed between the front suction port 4B and the first panel 111.
- the front panel 11 does not protrude above the top surface of the indoor unit main body 10 during operation, and the operation is viewed in front view When the product size and operation size at the time of stop does not change.
- the service person can be installed without worrying about the product height at the time of operation.
- the height positions of the upper end of the first panel 111 and the upper end of the second panel 112 do not have to be completely aligned in a front view, and the height positions thereof are felt to be aligned in a front view. It is sufficient to be close to each other. Therefore, it is also permitted that the upper end of the first panel 111 slightly protrudes from the upper end of the second panel 112 in a front view.
- the opposing surfaces of the upper end of the side surface 111a of the first panel 111 and the lower end of the side surface 112a of the second panel 112 are inclined surfaces facing forward, so the first panel Even if 111 advances and rises simultaneously, the upper end of the side surface 111a of the first panel 111 and the lower end of the side surface 112a of the second panel 112 do not interfere with each other.
- the first panel 111 can be simultaneously advanced and raised by the panel transport mechanism 21, that is, can be moved obliquely upward.
- a closed position CP see FIG. 2A
- the open position OP is a position in which the front surface of the air outlet 5 is moved to a height position where it is aligned with the air outlet 5.
- FIG. 7 is a longitudinal sectional view of the panel transfer mechanism 21.
- FIG. 11A and 11B are perspective views of the panel support mechanism 24 before and after the operation of the support member 25.
- the panel conveyance mechanism 21 is an application of a parallel crank mechanism.
- the panel transfer mechanism 21 has a first crank 211, a second crank 212, a movable link 213, and a fixed link 214.
- the first crank 211 is a resin member, and both ends thereof are formed in a cylindrical or cylindrical shape so as to function as a rotating shaft.
- the first rotation shaft 211 a located on the first panel 111 side is rotatably held by the upper end bearing 213 a of the movable link 213.
- the first rotation shaft 211a is a cylindrical protrusion.
- the second rotary shaft 211b located on the indoor unit main body 10 side is connected to the output shaft of a motor (not shown). As shown in FIG. 7, the second rotation shaft 211 b is provided at the rear of the second panel 112. In the present embodiment, a resin rod having a rectangular cross section is inserted into the output shaft of the motor, and a square hole into which the resin rod is inserted is provided at the center of the second rotation shaft 211b.
- the first crank 211 has a bent portion 211 c.
- the bent portion 211c is a portion connecting the first rotation shaft 211a and the second rotation shaft 211b, but an imaginary line (two points) connecting the center of the first rotation shaft 211a and the center of the second rotation shaft 211b by the shortest distance After leaving obliquely downward from the dashed line KL), it curves and extends in the direction approaching the imaginary line.
- the second crank 212 is a resin member, and both ends thereof are formed in a cylindrical or cylindrical shape so as to function as a rotating shaft.
- the first rotary shaft 212 a located on the first panel 111 side is rotatably held by the lower end bearing 213 b of the movable link 213.
- the first rotation shaft 212a is a cylindrical protrusion.
- the second rotation shaft 212 b located on the indoor unit main body 10 side is rotatably held at the lower end portion of the fixed link 214.
- the second rotation shaft 212 b is a cylindrical protrusion.
- the movable link 213 is an elongated resin member, and is fixed to the back surface of the first panel 111 in a vertical posture.
- the upper and lower ends of the movable link 213 are bearings, the upper end is an upper end bearing 213a for receiving the first rotation shaft 211a of the first crank 211, and the lower end is a lower end bearing 213b for receiving the first rotation shaft 212a of the second crank 212. It is.
- the upper end bearing 213a has a bearing hole into which a cylindrical protrusion of the first rotation shaft 211a of the first crank 211 is inserted.
- the lower end bearing 213 b has a bearing hole into which the cylindrical protrusion of the first rotation shaft 212 a of the second crank 212 is inserted.
- the second rotation shaft 211b of the first crank 211 is supported by the output shaft of the motor, and the second rotation shaft 212b of the second crank 212 is at a position spaced downward from the output shaft of the motor by a predetermined length. It is supported by the formed bearing 214b.
- the first crank 211 stops rotating at a position where an imaginary line connecting the first rotation shaft 211 a and the second rotation shaft 211 b is inclined about 5 ° upward with respect to the horizontal. This stop position is set as the maximum rotation position Rm of the first crank 211 (see FIGS. 5 and 6).
- the first rotation shaft 211 a of the first crank 211 and the upper end bearing 213 a of the movable link 213 are rotatably connected. Further, the lower end bearing 213b of the movable link 213 and the first rotation shaft 212a of the second crank 212 are rotatably connected. Furthermore, the bearing 214b of the fixed link 214 and the second rotation shaft 212b of the second crank 212 are rotatably connected.
- a virtual line connecting “the first rotation shaft 211 a and the second rotation shaft 211 b of the first crank 211” and “a virtual line connecting the first rotation shaft 212 a and the second rotation shaft 212 b of the second crank 212 are substantially parallel, and “the imaginary line connecting the upper end bearing 213a and the lower end bearing 213b of the movable link 213” and “the imaginary line connecting the motor output shaft and the bearing 214b” of the fixed link 214 are approximately parallel.
- the four virtual lines form a substantially parallelogram.
- the first crank 211 rotates as a driving node
- the first panel 111 fixed to the movable link 213 can rise or lower while maintaining parallel to the fixed link 214.
- the first crank 211 when the first crank 211 reaches the maximum rotation position Rm, the first panel 111 is located in front of the second panel 112, and the first panel 111 and the second panel 112. The height position of the upper end of is aligned in front view.
- first panel 111 is set longitudinally longer than the second panel 112 in front view, when the first panel 111 rises to a height position where its upper end and the upper end of the second panel 112 are aligned in front view , And the second panel 112 is covered by the first panel 111 to become one panel.
- the first panel 111 has its own upper end and the second By raising to a height position (open position OP) aligned with the upper end of the panel 112, the front face of the outlet 5 is completely opened.
- the panel transport mechanism 21 operates except during operation when maintenance such as cleaning of the filter 9 is performed.
- maintenance such as cleaning of the filter 9
- the lower end of the first panel 111 rotates the first panel 111 in the direction away from the indoor unit main body 10 to open the front surface of the indoor unit main body 10
- the first panel 111 is transported to the open position OP.
- the open position OP as shown in FIG. 2B, since the upper end of the side surface 111a of the first panel 111 and the lower end of the side surface 112a of the second panel 112 are separated, even if the first panel 111 is rotated.
- the upper end of the side surface 111a of the first panel 111 and the lower end of the side surface 112a of the second panel 112 do not interfere with each other, and the generation of stagnant noise and the scratching of the first panel 111 and the second panel 112 are prevented.
- the panel transport mechanism 21 is connected to the motor, which causes a burden for the user. It is preferable to operate at 21.
- remote control 80 When the panel transport mechanism 21 turns on any one of the operation button 81 and the maintenance preparation button 83 provided in advance on the remote control device of the air conditioning indoor unit 1 (refer to FIG. 3; hereinafter referred to as remote control 80). Operate.
- the user first turns on the maintenance preparation button 83 and causes the panel transport mechanism 21 to move the first panel 111 to the open position OP.
- the user turns the lower end of the first panel 111 in the direction away from the indoor unit body 10 in order to open the front surface of the indoor unit body 10, but the movable link 213 of the panel transfer mechanism 21 is Since it is connected to the back surface of the panel 111, it is necessary to switch the connection state of the both to a rotation permitting state where the first panel 111 can rotate alone.
- a hinge mechanism 22, a lock mechanism 23 and a panel support mechanism 24 are provided between the back surface of the first panel 111 and the movable link 213 of the panel transfer mechanism 21.
- the hinge mechanism 22 is a mechanism for rotating the first panel 111 about the upper end bearing 213a of the movable link 213 when opening the front surface of the indoor unit main body 10 (see FIG. 8).
- a hinge mechanism 22 that holds the upper end bearing 213a of the movable link 213 is provided.
- the hinge mechanism 22 may be a shaft fitted with a snap fit to the upper end bearing 213 a of the movable link 213.
- FIG. 8 is a perspective view of the lock mechanism 23 disposed on the back surface of the first panel 111.
- 9A is an enlarged perspective view of the lock mechanism 23 of the first panel 111 and the movable link 213.
- FIG. 9B is an enlarged perspective view showing a released state of the lock mechanism 23 of FIG. 9A.
- a lock mechanism 23 for restraining the lower end bearing 213b of the movable link 213 is provided at a portion of the first panel 111 facing the lower end bearing 213b of the movable link 213.
- the lock mechanism 23 has a claw portion 231, a spring portion 232, and a handle portion 233 extending therefrom.
- the claw portion 231, the spring portion 232, and the grip portion 233 are integrally molded of the same resin.
- the nail portion 231 The claws 231 slide along the back surface of the first panel 111. Usually, the claw tip end 231 a of the claw portion 231 is inserted into a hole 213 h provided in the lower portion of the lower end bearing 213 b of the movable link 213, and prevents the lower end bearing 213 b from being separated from the back surface of the first panel 111.
- the spring portion 232 biases the claw portion 231 upward such that the claw tip end 231a of the claw portion 231 is not separated from the hole 213h provided in the lower portion of the lower end bearing 213b of the movable link 213.
- the spring portion 232 is formed of resin and in an arc beam shape. One end of the spring portion 232 is held on the back surface of the first panel 111, which is referred to as a free end 232a. Further, the other end of the spring portion 232 is fixed to the claw portion 231, which is referred to as a fixed end 232b.
- the claw portion 231 and the spring portion 232 have a lock function of the lock mechanism 23.
- the grip portion 233 is a portion on which the user puts a finger, and is connected to the lower portion of the claw portion 231.
- a gap between the back surface of the first panel 111 and the indoor unit body 10 is large enough for the user's hand to enter.
- the claw portion 231 descends and the claw tip end 231a separates from the hole 213h provided in the lower portion of the lower end bearing 213b of the movable link 213, so the first panel 111 and the lower end bearing 213b of the movable link 213 become separable.
- the handle portion 233 is responsible for unlocking the lock mechanism 23.
- FIG. 10 is a partial perspective view of the air conditioning indoor unit 1 when the first panel 111 is in the maintenance position.
- the first panel is used to allow the user to work with both hands. It is necessary to hold 111 at the maintenance position MP.
- the panel support mechanism 24 is a mechanism for holding the first panel 111 at the maintenance position MP. As shown in FIG. 10, the panel support mechanism 24 has a pivot shaft 24a provided on the movable link 213 of the panel transport mechanism 21 and a support member 25 rotatably supported by the pivot shaft 24a. ing.
- Rotating shaft 24a 11A is a perspective view of the panel support mechanism 24 before the operation of the support member 25.
- FIG. 11B is a perspective view of the panel support mechanism 24 after the operation of the support member 25.
- FIG. 12 is a front view of the panel support mechanism 24 before the operation of the support member 25. As shown in FIG.
- the pivot shaft 24 a is a pin-like shaft that protrudes outward from both side surfaces of the movable link 213.
- the pivot shaft 24 a is provided in a section 213 c connecting the upper end bearing 213 a and the lower end bearing 213 b of the movable link 213 and between the center of the section 213 c and the lower end bearing 213 b.
- Support member 25 is an elongated member, and has a U-shaped cross section perpendicular to the longitudinal direction. At one end of the support member 25, a shaft hole 25a is provided in which the pivot shaft 24a is inserted.
- the end of the support member 25 where the shaft hole 25a is provided is referred to as a first end 251, and the opposite end is referred to as a second end 252.
- the end face of the first end portion 251 includes an arc surface 251a having a central angle of 100 ° with respect to the center of the axial hole 25a, and an inclined surface 251b projecting in the longitudinal direction of the support member 25 beyond the arc surface 251a.
- the support member 25 is a section between the back surface of the first panel 111 and the movable link 213 Because it is sandwiched between 213c. The support member 25 is at rest.
- the support member 25 starts pivoting around the pivot shaft 24a so as to follow the first panel 111, and the first panel 111
- the support member 25 pivots 60 ° in the direction away from the movable link 213, the inclined surface 251b abuts on the movement prevention surface 213d, and the pivoting of the support member 25 is stopped.
- the second end portion 252 of the support member 25 is obtained by temporarily raising the support member 25 upward and pushing the first panel 111 by hand. Approaches the movable link 213 of the panel transfer mechanism 21 while sliding on the back surface of the first panel 111, so that part of the section 213c of the movable link 213 is finally fitted in the recessed space of the support member 25. , Overlapping, I can not press any more. At this point, the first panel 111 returns to the vertical attitude.
- the second end 252 is not at the body end 25b of the support member 25, but the left side of the body end 25b of the support member 25 in a front view of FIG. Once raised from the surface to the back side, it is bent to the left and extends parallel (vertical direction) to the paper surface. That is, the second end 252 is closer to the indoor unit main body 10 than the main body end 25 b.
- the second end 252 being provided at a position deviated from the main body end 25 b of the support member 25, even if a buckling load is applied from the tip of the second end 252, the second end Since the force 252 acts to move the body end 25b closer to the indoor unit body 10, a moment in the direction of the indoor unit body 10 is inevitably generated in the support member 25.
- the second end 252 of the support member 25 bends when a certain amount of force is applied, and then the second end 252 As it slides on the back of the first panel 111, it does not break.
- the support member 25 of the panel support mechanism 24 is housed so as to overlap the movable link 213 of the panel transport mechanism 21 when the first panel 111 is in the vertical posture at the closed position CP and the open position OP.
- the support member 25 is lowered by its own weight to support the first panel 111.
- the panel support mechanism 24 is of a type in which the front panel is not driven, and which rotates the front panel (including the front grille) forward to maintain the filter, for example,
- the present invention is also applicable to a floor-type air conditioning indoor unit.
- the support member 25 when the first panel 111 is in the inclined posture at the maintenance position MP, the support member 25 is configured to be lowered by its own weight from the movable link 213 side to support the first panel 111.
- the supporting member 25 is rotatably held on the back surface side of the first panel 111, and when the first panel 111 is inclined, the supporting member 25 is lowered by its own weight from the first panel 111 side. It may be configured to stop on the movable link 213.
- FIG. 13A is a perspective view of the first wind direction adjusting blade 30 when the operation is stopped.
- FIG. 13B is a perspective view of the 1st wind direction adjustment blade
- FIG. 14A is a cross-sectional view taken along line XX in FIG. 13A.
- the first wind direction adjusting blade 30 is a heat insulating part 31 made of expanded polystyrene, a first blade member 321 forming the decorative surface 30a, and a second blade member forming the Coanda surface 30b. It is comprised so that it may pinch
- the 1st blade member 321 and the 2nd blade member 322 are generically called "blade member 32".
- the first wind direction adjusting blade 30 is a member that adjusts the wind direction of the blown air blown out from the blowout port 5 through the blowout flow path 18. As shown in FIG. 4, when the air conditioning indoor unit 1 is in the operation stop state, the first air direction adjusting blade 30 covers the lower surface of the outlet 5 with the decorative surface 30 a directed downward.
- the first wind direction adjusting blade 30 rotates 180 ° around the rotation shaft 30c.
- the operation is necessarily performed after the first panel 111 or The rotation operation of the first wind direction adjusting blade 30 is performed behind the operation of the one panel 111.
- the position where the first wind direction adjusting blade 30 has reached 180 ° around the rotation axis and reached is referred to as the maximum open position MOP (see FIG. 6).
- the first wind direction adjusting blade 30 stands still with the decorative surface 30a upward and the Coanda surface 30b downward.
- the front suction port 4B of the indoor unit main body 10 exists above the decorative surface 30a, and room air is sucked.
- the air outlet 5 exists below the Coanda surface 30b, and cold air is blown out.
- the first blade member 321 Since the heat transfer along the thickness direction of the first wind direction adjusting blade 30 is thermally insulated by the polystyrene foam of the heat insulating portion 31, the first blade member 321 is cooled by the first blade member 321 and the first blade member 321 and the first The heat conduction inside the two blade members 322 is a factor.
- cold air flows along the Coanda surface 30b of the first air direction adjusting blade 30 at the maximum open position MOP, but since the cold air is peeled off when the curvature of the arc of the tip changes, room air is drawn by vortex after peeling. And contacts the first wind direction adjusting blade 30 to cause dew condensation.
- the first air direction adjusting blade 30 is provided with a recess 33 formed by reducing the thickness of the second blade member 322.
- the recesses 33 are provided at both ends of the first wind direction adjusting blade 30, and one is called a first recess 331 and the other is called a second recess 332.
- the position of the first concave portion 331 is in the downstream direction from the upstream end 30up to the flow of the blown air of the first wind direction adjusting blade 30. It is set to be within 20% of the width dimension of the first wind direction adjusting blade 30.
- the position of the second recess 332 is the first wind direction adjusting blade in the upstream direction from the downstream end 30 dp with respect to the flow of the blown air of the first wind direction adjusting blade 30. It is provided to be in the range of 20% of the width dimension of 30.
- FIG. 14B is an enlarged cross-sectional view of the first recess 331.
- 14C is an enlarged cross-sectional view of the second recess 332.
- the first recess 331 and the second recess 332 are formed by reducing the thickness of the second blade member 322 by 35 to 60%. That is, the minimum thickness t of the first recess 331 and the second recess 332 is set within a range of 40% to 65% of the thickness of the second blade member 322 excluding the first recess 331 and the second recess 332.
- the minimum thickness of the 1st recessed part 331 and the 2nd recessed part 332 is so thin that it is good
- the 2nd blade member 322 is produced by resin injection molding, it is molten resin in a metal mold Is set within a range of 40 to 65% of the thickness of the second blade member 322.
- the bottom surfaces of the first concave portion 331 and the second concave portion 332 support the back surface with the expanded polystyrene of the heat insulating portion 31, there is no reduction in strength.
- the width of the recess of the first recess 331 and the second recess 332 is a dimension corresponding to 40 to 65% of the plate thickness of the second blade member 322 at the bottom width w1 of the recess, the second blade at the inlet w2 of the recess It is set to a size corresponding to 100 to 200% of the thickness of the plate 322, and preferably set to a range of 0.6 to 2.4 mm.
- the heat transmitted to the second blade member 322 is blocked in the flow by the minimum thickness portion of the first recess 331 and the second recess 332, so that in the section from the first recess 331 and the second recess 332 to the first blade member 321
- the temperature drop is suppressed.
- the temperature drop of the portion in contact with the warm indoor air is also suppressed, and the occurrence of condensation is suppressed.
- first recesses 331 and second recesses 332 are not particularly limited, but it is preferable to provide two first recesses 331 and one second recess 332 because the upstream side in the flow direction of the blown air is easily cooled.
- some air conditioning indoor units are provided with a plurality of grooves in a portion where the room air, not the blown air, hits, but the purpose of the grooves is to hold condensed water and evaporate it with air,
- condensation may occur due to events other than the above.
- the cold air flowing along the Coanda surface 30b of the first wind direction adjusting blade 30 at the maximum open position MOP (see FIG. 6) by the vertical wind direction adjusting blade 50 is a side wall of the wall forming the outlet 5. And may come to the side of the cosmetic surface 30a.
- the gap between the decorative surface 30a of the first wind direction adjusting blade 30 at the maximum open position MOP and the upper wall of the wall forming the air outlet 5 has a negative pressure, and the negative pressure causes cold air to flow to the decorative surface 30a side It is considered to come up, and dew condensation occurs in this case.
- a wall 34 rising in the thickness direction is provided at the side end of the second blade member 322 in the longitudinal direction.
- the vertical wind direction adjusting blade 50 When the left and right blowing is performed by the vertical wind direction adjusting blade 50, the cold air flowing obliquely across the Coanda surface 30b of the first wind direction adjusting blade 30 strikes the wall portion 34 and is directed downward of the side wall of the outlet 5, There is no flow that wraps around the decorative surface 30 a of the adjustment blade 30. This suppresses the occurrence of condensation.
- Second Wind Direction Adjusting Blade 40 As shown in FIG. 4, in the state where the air conditioning indoor unit 1 stops operation, the second wind direction adjusting blade 40 can be seen from the first panel 111 at the closed position CP. It is located at the rear, above the first wind direction adjusting blade 30 at the initial position SP, and is invisible to the human eye.
- the first panel 111 moves to the open position OP to open the front of the outlet 5, and the first wind direction adjusting blade 30
- the second air direction adjusting blade 40 is exposed from the outlet 5 because it is rotated and moved upward beyond the second air direction adjusting blade 40 to open the lower surface of the outlet 5.
- FIG. 15 is a longitudinal sectional view of the air conditioning indoor unit 1 for showing the inclination angle of the second wind direction adjusting blade 40.
- the second wind direction adjusting blade 40 has the convex side 40a downward and the concave side 40b upward, the cold air flowing along the concave side 40b, which is the upper surface, is lifted and the first wind is directed. Go to the adjustment blade 30.
- the flow along the concave side surface 40b is referred to as the main flow.
- the inclination angle ⁇ of the second wind direction adjusting blade 40 is an angle of the imaginary line BL passing the front end and the rear end of the second wind direction adjusting blade 40 with respect to the tangent TL at the end of the scroll 17.
- the cold air flowing along the convex side surface 40a peels off immediately after the apex of the convex side surface 40a is exceeded, or at the center of the section connecting the apex of the convex side surface 40a and the downstream end. Therefore, room air whose temperature is higher than that of the cold air enters a place where the cold wind stops, and dew condensation occurs.
- the section connecting the downstream side point from the deepest point of the concave side surface 40b is called a concave second half section 40bb, and the section connecting the apex of the convex side 40a and the downstream end is called a convex second half section 40ab.
- (6-1-1) The relationship between the attitude of the second wind direction adjusting blade 40 and the temperature of the blown air According to the research of the applicant, when the temperature Tb of the blown air is in the range of 12 ° C. to 13 ° C., the second wind direction If the inclination angle ⁇ of the adjustment blade 40 is in the range of 0 to 5 °, the occurrence of condensation is suppressed.
- the second wind direction adjusting blade 40 is provided on the end side of the second wind direction adjusting blade 40 in the longitudinal direction in order to allow the cold air to flow without peeling even in the convex second half section 40ab of the convex side surface 40a.
- a through hole 43 passing in the thickness direction of The through holes 43 will be described below with reference to the drawings.
- FIG. 16A is a perspective view of the second wind direction adjusting blade 40.
- FIG. 16B is a cross-sectional view taken along line YY of FIG. 16A.
- the through hole 43 is provided for the purpose of flowing the cold air flowing along the concave rear half section 40bb of the concave side surface 40b to the convex rear half section 40ab of the convex side 40a (dotted line in FIG. 16B). See the arrow in).
- the opening 43 b formed in the concave rear half section 40 bb of the through holes 43 is located upstream of the opening 43 a formed in the convex rear half section 40 ab. That is, the through hole 43 is an obliquely downward hole which advances downward as advancing forward.
- the through hole 43 is a long hole parallel to the longitudinal direction of the second wind direction adjusting blade 40.
- the through hole 43 adjusts the second wind direction and a virtual plane including the vertical surface 50a of the blade piece 501 at the end opposite to the swing direction. At least a part of the through hole 43 may be hung in a section from a region where the blade 40 intersects to an end of the second wind direction adjusting blade 40 closest to the region.
- the through holes 43 are formed to extend from both ends to a range of 20% of the total length in the longitudinal direction.
- a section for example, the right end
- there is no force in the air flow it is easy to separate from the convex side surface 40a of the second wind direction adjusting blade 40, the indoor air easily contacts, and condensation easily occurs.
- the cold air passing through the through holes 43 is along the convex rear half section 40ab of the convex side surface 40a. Since it flows, it attracts the cold wind which flows toward convex side latter half section 40ab from the upstream, and prevents peeling from convex side latter half section 40ab. As a result, indoor air does not contact the second wind direction adjusting blade 40, and the occurrence of condensation is suppressed.
- the through hole 43 is provided, and as a result of suppressing the occurrence of condensation, when the temperature Tb of the blown air is in the range of 12 ° C. to 13 ° C., the inclination angle ⁇ of the second wind direction adjusting blade 40 is 0 to It has been confirmed by applicants' research that the occurrence of dew condensation is suppressed within the range of 32 °.
- the through holes 43 do not necessarily have to be long holes.
- the through holes 43 may be a plurality of round holes continuous in one direction or a plurality of “long holes shorter than the long holes in the above embodiment” continuous in one direction. It may be.
- FIG. 17 is an air conditioning indoor unit 1B according to a modification, and is a longitudinal sectional view of the air conditioning indoor unit 1B at the time of operation stop.
- FIG. 18 is a vertical cross-sectional view of the air conditioning indoor unit 1B during operation of the panel transfer mechanism before the start of operation.
- FIG. 19 is a longitudinal sectional view of the air conditioning indoor unit 1B at the time of operation. 17, 18 and 19, the difference between the air conditioning indoor unit 1B according to the above embodiment and the modification is that the panel carrying mechanism 21B for carrying both of the first panel 111 and the second panel 112 is provided. It is.
- the panel transfer mechanism 21 B is obtained by adding a transfer mechanism of the second panel 112 to the panel transfer mechanism 21 for transferring the first panel 111. As shown in FIG. 18, the panel transfer mechanism 21 B moves the first panel 111 forward and upward first, and when the first panel 111 is separated from the indoor unit main body 10 by a predetermined distance, the second panel 112 is moved indoors. Move horizontally in the direction away from the machine body 10.
- the first panel 111 moves the distance D1 in the horizontal direction from the indoor unit main body 10 and H1 in the vertical direction and then stops.
- the second panel 112 moves from the indoor unit body 10 horizontally by a distance D2 shorter than the distance D1 and stops.
- the second panel 112 opens the front upper surface of the indoor unit main body 10 during operation, so air passes between the upper front surface of the indoor unit main body 10 and the second panel 112 and the indoor unit main body 10 As a result, the air suction path from the front of the indoor unit body 10 is shortened, and the air resistance can be reduced.
- the air passing through the through hole 43 during the cooling operation is provided on the downstream side of the convex side surface 40a by providing the through hole 43 for passing a part of the blown air in the thickness direction of the second wind direction adjusting blade 40. Since it flows toward the above, the blowout air flowing along the convex side surface 40a from the upstream side is attracted and prevented from peeling off from the convex side surface 40a. As a result, the warm air does not enter and the occurrence of condensation is suppressed.
- the through hole 43 is a virtual plane including the vertical surface 50a of the blade piece 501 at the end opposite to the swing direction when the vertical wind direction adjustment blade 50 is at the maximum swing position in actual use. At least a part of the through hole 43 may be hung in a section from the area where the plane and the second wind direction adjusting blade 40 intersect to the end of the second wind direction adjusting blade 40 closest to the area.
- the cold air passing through the through hole 43 flows along the convex second half section 40ab of the convex side surface 40a, so the cold air flowing from the upstream side toward the convex second half section 40ab is attracted and separated from the convex second half section 40ab To prevent. As a result, indoor air does not contact the second wind direction adjusting blade 40, and the occurrence of condensation is suppressed.
- the present invention is useful not only to wall-mounted air conditioning indoor units but also to floor-standing air conditioning indoor units.
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Abstract
Description
図1Aは、運転停止時の空調室内機1の斜視図である。図1Bは、運転準備中の空調室内機1の斜視図である。また、 図2Aは、運転停止時の空調室内機1の側面図である。図2Bは、運転準備中の空調室内機1の側面図である。さらに、図3は、運転時の空調室内機1の斜視図である。図1A、図1B、図2A、図2B及び図3において、空調室内機1は壁掛けタイプであり、室内機本体10と、室内機本体10の前面を覆う前面パネル11とを備えている。
図4は、運転停止時の空調室内機1の縦断面図である。また、図5は、運転準備中の空調室内機1の縦断面図である。図6は、運転時の空調室内機1の縦断面図である。図4、図5及び図6において、室内機本体10は、外郭を形成する本体ケーシング100、調和空気の吹出方向を調整する第1風向調整羽根30、第2風向調整羽根40及び垂直風向調整羽根50を備えている。また、本体ケーシング100の内部には、室内熱交換器12、ファン13、及びフレーム16が収容されている。
本体ケーシング100は、前面部101と上面部102と下面部103とによって略長方形状の立体空間を形成し、その立体空間内に室内熱交換器12、ファン13、フレーム16、及びフィルタ9が収まっている。また、上面部102には、複数のスリットから成る上吸込口4A(図10参照)が設けられている。さらに、前面部101の下部から下面部103の前部にかけて、吹出口5が設けられている。そして、前面部101のうち吹出口5より上側には、前吸込口4Bが設けられている。
第1風向調整羽根30は、運転停止時は、吹出口5の下面を覆う位置で静止している。その位置を初期位置SP(図4及び図5参照)という。この初期位置SPにおいて、第1風向調整羽根30の下側となる面は、運転停止中は常に人目に触れるので、見栄えの良い面に仕上げられており、ここでは化粧面30aという。
第2風向調整羽根40は、吹出口5よりも上流側で、運転停止時における第1風向調整羽根30の初期位置SPよりも上方に位置している。例えば、冷房運転時では、図6に示すように、第2風向調整羽根40は、断面形状が円弧状であり凸側面40aを下方、凹側面40bを上方に向けている。なお、暖房運転において、気流を下方へ向ける垂直気流を生成するときには、第2風向調整羽根40は凸側面40aを上方、凹側面40bを下方に向ける姿勢を採る場合がある。
図4、図5及び図6に示すように、垂直風向調整羽根50は、複数の羽根片501と、複数の羽根片501を連結する連結棒503を有している。また、垂直風向調整羽根50は、吹出流路18において、第1風向調整羽根30及び第2風向調整羽根40よりもファン13に近い位置に配置されている。
図1A、図2A及び図4に示すように、前面パネル11は、室内機本体10の前面を覆う部材である。前面パネル11は、上下に分割されて、下側に位置する第1パネル111と、第1パネル111よりも上側に位置する第2パネル112とを含んでいる。
第1パネル111は、パネル搬送機構21によって前進と上昇とを同時に行うこと、つまり斜め上方に移動することができる。ここで、説明の便宜上、第1パネル111が吹出口5の正面を閉じる位置を閉位置CP(図2A参照)とよび、第1パネル111が正面視において自己の上端と第2パネル112の上端とが揃う高さ位置へ移動して吹出口5の前面を開放した位置を開位置OP(図2B参照)とよぶ。
第1クランク211は、樹脂製部材であり、その両端は回転軸として機能するように円柱状又は円筒状に成形されている。第1パネル111側に位置する第1回転軸211aは、可動リンク213の上端軸受213aに回転可能に保持されている。本実施形態では、図11Aに示すように、第1回転軸211aは円柱状の突起である。
第2クランク212は、樹脂製部材であり、その両端は回転軸として機能するように円柱状又は円筒状に成形されている。第1パネル111側に位置する第1回転軸212aは、可動リンク213の下端軸受213bに回転可能に保持されている。本実施形態では、図11Aに示すように、第1回転軸212aは円柱状の突起である。
可動リンク213は、細長い樹脂製部材であり、第1パネル111の裏面に鉛直姿勢で固定されている。可動リンク213の上下端は軸受となっており、上端は第1クランク211の第1回転軸211aを受ける上端軸受213aであり、下端は第2クランク212の第1回転軸212aを受ける下端軸受213bである。
固定リンク214は、室内機本体10側に存在するが、少なくとも第1クランク211の第2回転軸211bの軸受と、第2クランク212の第2回転軸212bの軸受とが存在すればよく、特定の形状を有する必要はない。
第1パネル111が図4に示す状態のときに、モータが第1クランク211の第2回転軸211bを時計方向に回転させると、第1クランク211が時計方向に回動する。このとき、第1クランク211の第1回転軸211aが第2回転軸211bを中心とする円弧を描きながら可動リンク213を持ち上げる。
運転時以外でパネル搬送機構21が動作するのは、フィルタ9の清掃などメンテナンスを行うときである。ユーザーは、フィルタ9の清掃などのメンテナンスを行う際には、第1パネル111の下端が室内機本体10から離れる方向に第1パネル111を回動させて、室内機本体10の前面を開放する必要がある。
ヒンジ機構22は、室内機本体10の前面を開放する際、第1パネル111を可動リンク213の上端軸受213aを中心として回動させるための機構である(図8参照)。
図8は、第1パネル111の裏面に配置されたロック機構23の斜視図である。また、図9Aは、第1パネル111と可動リンク213とのロック機構23の拡大斜視図である。さらに、図9Bは、図9Aのロック機構23の解除状態を示す拡大斜視図である。
爪部231は、第1パネル111の裏面に沿って摺動する。通常、爪部231の爪先端231aは、可動リンク213の下端軸受213bの下部に設けられた孔213hに挿入され、下端軸受213bが第1パネル111の裏面から離れることを阻止している。
バネ部232は、爪部231の爪先端231aが可動リンク213の下端軸受213bの下部に設けられた孔213hから離れないように爪部231を上方へ付勢している。バネ部232は、樹脂で、円弧梁状に成形されている。バネ部232の一端は第1パネル111の裏面に保持されており、これを自由端232aという。また、バネ部232の他端は爪部231に固定されており、これを固定端232bという。本実施形態において、爪部231とバネ部232とは、ロック機構23のロック機能を担っている。
把手部233は、ユーザーが指を掛ける部分であり、爪部231の下部と繋がっている。第1パネル111が開位置OPに在るときは、第1パネル111の裏面と室内機本体10との間にユーザーの手が入る程の隙間ができるので、ユーザーが把手部233に指を掛けて下方に引くことにより、爪部231が降下し爪先端231aが可動リンク213の下端軸受213bの下部に設けられた孔213hから離脱するので、第1パネル111と可動リンク213の下端軸受213bとが分離可能となる。本実施形態において、把手部233は、ロック機構23のロック解除機能を担っている。
図10は、第1パネル111がメンテナンス位置にあるときの空調室内機1の部分斜視図である。図10において、第1パネル111が室内機本体10の前面を開放する位置(以下、「メンテナンス位置MP」という。)まで移動しても、ユーザーが両手で作業を行うためには、第1パネル111をメンテナンス位置MPに保持しておく必要がある。
図11Aは、支持部材25の動作前のパネル支持機構24の斜視図である。また、図11Bは、支持部材25の動作後のパネル支持機構24の斜視図である。さらに、図12は、支持部材25の動作前のパネル支持機構24の正面図である。
支持部材25は、細長い部材であり、長手方向と垂直な断面形状がコの字状に窪んだ形状である。支持部材25の一方の端部には、回動軸24aが挿入される軸孔25aが設けられている。
ロック機構23の把手部233が下方に引かれ(図9B参照)、可動リンク213の下端軸受213b側と第1パネル111との連結が解除され、ユーザーの手によって第1パネル111の下端が室内機本体10から離れる方向に引かれると、第1パネル111がヒンジ機構22によって、可動リンク213の上端軸受213a回りに回動する。
なお、このパネル支持機構24は、前面パネルが駆動しないタイプで、前面パネル(前面グリルを含む)を前方に回動させてフィルタをメンテナンスするもの、例えば床置タイプの空調室内機にも適用可能である。
図13Aは、運転停止時の第1風向調整羽根30の斜視図である。また、図13Bは、運転時の第1風向調整羽根30の斜視図である。さらに、図14Aは、図13AのX-X線における断面図である。
吹出口5の上壁と化粧面30aとの間には僅かに隙間が存在するので、室内空気が進入し易やすい。その上冷房運転時には、コアンダ面30bを形成する第2羽根部材322が冷風によって冷却されているので、伝熱によって化粧面30aを形成する第1羽根部材321も冷却されるので、化粧面30aに結露が生じる。
上記のような結露の発生を防止するために、第1風向調整羽根30には、第2羽根部材322の板厚を減少させることによって形成される凹部33が設けられている。凹部33は、第1風向調整羽根30の両端部に設けられており、一方を第1凹部331、他方を第2凹部332という。
ここまでは、吹出口5の上壁と化粧面30aとの隙間に進入する室内空気、及び第1風向調整羽根30のコアンダ面30bに沿って流れる冷風の剥離後の渦によって引き込まれる室内空気が、冷却されて結露が生じることを前提に説明した。
図4に示すように、空調室内機1が運転を停止している状態では、第2風向調整羽根40は、閉位置CPの第1パネル111よりも後方で、初期位置SPの第1風向調整羽根30よりも上方に位置しており、人目に触れない。
上記のとおり、第2風向調整羽根40の傾斜角度θが所定角度を超えない限り、冷風が凸側後半区間40abで剥離することはなく、第2風向調整羽根40全体が冷風に包まれている状態となるので、第2風向調整羽根40への結露の発生が抑制される。
出願人の研究によれば、吹出空気の温度Tbが12℃~13℃の範囲にあるとき、第2風向調整羽根40の傾斜角度θが0~5°の範囲内であれば、結露の発生が抑制されている。
そこで、本実施形態では、冷風が凸側面40aの凸側後半区間40abでも剥離せずに流れるようにするため、第2風向調整羽根40の長手方向の端部側に、第2風向調整羽根40の厚み方向に通過する貫通穴43が設けられている。以下、図面を用いて、貫通穴43について説明する。
上記実施形態では、前面パネル11の第2パネル112は固定であり、第1パネル111のみが第2パネル112の正面に移動して室内機本体10の前面を開放する構成であるが、これに限定されるものではなく、第1パネル111及び第2パネル112の双方が移動して室内機本体10の前面を開放してもよい。
(8-1)
空調室内機1では、吹出空気の一部を第2風向調整羽根40の厚み方向に通過させる貫通穴43を設けることによって、冷房運転時、貫通穴43を通過した空気は凸側面40aの下流側に向かって流れるので、上流側から凸側面40aに沿って流れてくる吹出空気を引き寄せ、凸側面40aから剥離することを防止する。その結果、暖気が進入せず、結露の発生が抑制される。
貫通穴43を、第2風向調整羽根40の長手方向に平行な長穴とすることによって、その分、貫通穴43を通過して凸側面40aの下流側に向かって流れる空気が増加するので、上流側から凸側面40aに沿って流れてくる吹出空気を引き寄せる効果が増し、さらに下面から剥離し難くなる。
貫通穴43を介して吹出空気の一部が前方下向きに導かれることによって、貫通穴43を通過した空気が凸側面40aの下流側に向かって流れ易くなる。
空調室内機1では、貫通穴43は、垂直風向調整羽根50が実使用時の最大振れ位置にあるときにおいて、振れ方向と反対方向の最も端に在る羽根片501の鉛直面50aを含む仮想平面と第2風向調整羽根40とが交差する領域から、当該領域に最も近い第2風向調整羽根40の端までの区間に貫通穴43の少なくとも一部が掛かっていればよい。これによって、貫通穴43を通過した冷風が凸側面40aの凸側後半区間40abに沿って流れるので、上流側から凸側後半区間40ab向かって流れてくる冷風を引き寄せ、凸側後半区間40abから剥離することを防止する。その結果、室内空気が第2風向調整羽根40に接触せず、結露の発生が抑制される。
空調室内機1では、第2風向調整羽根40の長手方向の端部側に吹出空気の一部を厚み方向に通過させる貫通穴43を設けたことによって、5℃~15℃の範囲内ならば、角度を0~35°の範囲で傾けることができるので、使い勝手がよい。
1B 空調室内機
40 第2風向調整羽根
43 貫通穴
50 垂直羽根(垂直風向調整羽根)
50a 鉛直面
Claims (7)
- 吹出空気の風向を上下方向に調整する風向調整羽根(40)を備える壁掛け式の空調室内機であって、
前記風向調整羽根(40)は、長手方向の端部側に前記吹出空気の一部を厚み方向に通過させる少なくとも1つの貫通穴(43)を有する、
空調室内機。 - 前記貫通穴(43)は、前記風向調整羽根(40)の長手方向に平行な長穴である、
請求項1に記載の空調室内機。 - 冷房運転時、前記貫通穴(43)は前記吹出空気の一部を前方下向きに導く、
請求項1又は請求項2に記載の空調室内機。 - 前記貫通穴(43)は、前記風向調整羽根(40)の先端に近づくほど下方に進むように傾斜している、
請求項1から請求項3のいずれか1項に記載の空調室内機。 - 前記貫通穴(43)は、前記風向調整羽根(40)のうち、前記吹出空気の流れ方向の中央より下流側に位置する、
請求項1から請求項4のいずれか1項に記載の空調室内機。 - 鉛直面(50a)を左右に振ることによって、前記風向調整羽根(40)に向かって流れる空気の風向を左右方向に調整する垂直羽根(50)をさらに備え、
前記垂直羽根(50)が最大振れ位置にあるときにおいて、振れ方向と反対方向の最も端に在る前記垂直羽根(50)の前記鉛直面(50a)を含む仮想平面と前記風向調整羽根(40)とが交差する領域から、前記領域に最も近い前記風向調整羽根(40)の端までの区間に前記貫通穴(43)の少なくとも一部が掛かっている、
請求項1から請求項5のいずれか1項に記載の空調室内機。 - 調和された空気を吹出口まで導くスクロールをさらに備え、
調和された前記空気の温度が5℃~15℃の範囲内のとき、前記スクロールの終端部の接線と前記風向調整羽根の前方端と後方端とを結ぶ仮想線との角度が0~35°の範囲内である、
請求項1から請求項6のいずれか1項に記載の空調室内機。
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