WO2017134762A1 - 空気調和機の室内機 - Google Patents
空気調和機の室内機 Download PDFInfo
- Publication number
- WO2017134762A1 WO2017134762A1 PCT/JP2016/053160 JP2016053160W WO2017134762A1 WO 2017134762 A1 WO2017134762 A1 WO 2017134762A1 JP 2016053160 W JP2016053160 W JP 2016053160W WO 2017134762 A1 WO2017134762 A1 WO 2017134762A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- outlet
- plate
- indoor unit
- guide surface
- 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
- 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
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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
- 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
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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
- F24F13/20—Casings or covers
-
- 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
- F24F2013/205—Mounting a ventilator fan therein
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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
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/28—Details or features not otherwise provided for using the Coanda effect
Definitions
- the present invention relates to an indoor unit of an air conditioner, and more particularly, to a wind direction plate that adjusts the direction of the blowing air in the vertical direction.
- the conventional indoor unit of an air conditioner includes a blower fan disposed in an air flow path from a suction port to a blowout port, and a heat exchanger disposed around the blower fan. And the airflow direction board which adjusts the direction of the blowing air taken up so that it may not condense during cooling operation up and down is controlled, controlling the direction of the airflow which blows off from a blower outlet freely from the front of an indoor unit.
- an air outlet is provided at the lower part of the housing.
- the blower outlet is provided with two wind direction plates that adjust the direction of the blown wind up and down, and is configured to cover the blower outlet with the two vertical wind direction plates when the operation is stopped. And at the time of a driving
- the present invention was made in order to solve the above-described problems. While directing the blowing air in the intended direction, the opening area of the air outlet is ensured, and the direction of the blowing air is adjusted up and down. An indoor unit of an air conditioner that suppresses condensation on a wind direction plate is provided.
- An indoor unit of an air conditioner includes a housing whose back side is attached to an indoor wall surface, a suction port provided in the housing, a blower outlet provided in the housing, and the suction port.
- An indoor heat exchanger and an indoor blower arranged in the air passage leading to the air outlet, and a blowout flow passage for the air blown out from the air outlet at the lower part of the air outlet, which is rotatably arranged at the air outlet.
- an up-and-down wind direction plate that changes the direction of the blowing air up and down, and the blowing channel at a position that is located on the front side of the housing from the up-and-down wind direction plate and projects downward from the lower end of the blowing port
- An up-and-down air direction auxiliary plate that changes the direction of the blowing air up and down, and the up-and-down air direction plate is located on the blowing flow path side and guides the flow of the blowing air; and an upstream guide surface;
- the outlet flow located on the outlet flow path side than the upstream guide surface
- An upstream end located on the upstream side of the blowout flow path in the up-and-down airflow direction auxiliary plate, disposed downstream of the blowout flow path and on the outside of the blowout flow path, for guiding the flow of the blown wind
- the portion is positioned on the inner side of the outlet flow channel with respect to the downstream guide surface, and on the upstream side of the downstream guide surface tip portion that is an end portion on the downstream side of the outlet
- the upstream end of the up / down airflow direction auxiliary plate is disposed inside the blowout flow path with respect to the downstream side guide surface, and the up / down airflow direction auxiliary plate and the downstream side guide surface Are arranged in an overlapping manner.
- the blown air is guided by the blowing flow path formed by connecting the guide surface of the up / down air direction plate and the up / down air direction auxiliary plate, and blown out toward the front surface of the housing.
- the wind path resistance of a blowing wind can be suppressed.
- part of the blown air flows along the guide surface and the downstream guide surface of the vertical wind direction plate, and the vertical wind direction assistance on the downstream side thereof It flows along the surface of the surface that is not on the side of the blowing flow path of the blowing air of the plate. For this reason, the blowing air flows on both surfaces of the up / down airflow direction auxiliary plate, and the warm and humid room air does not touch the lower side surface of the up / down airflow direction auxiliary plate.
- FIG. 1 is a schematic diagram showing a refrigerant circuit of an air conditioner 1 according to Embodiment 1 of the present invention.
- an indoor unit 2 and an outdoor unit 3 are connected to each other by a gas side communication pipe 11 and a liquid side communication pipe 12, thereby forming a refrigerant circuit 13.
- the indoor unit 2 includes an indoor heat exchanger 4 inside, and a refrigerant pipe connected to the outside of the indoor unit 2 is connected to the indoor heat exchanger 4.
- the outdoor unit 3 includes therein a four-way switching valve 9, a compressor 8, an outdoor heat exchanger 6, and an expansion valve 10, which are connected by a refrigerant pipe.
- the refrigerant circuit 13 includes the indoor heat exchanger 4, the four-way switching valve 9, the compressor 8, the outdoor heat exchanger 6, and the expansion valve 10, which are connected by the refrigerant pipe to constitute a refrigeration cycle.
- An indoor fan 5 is disposed in the vicinity of the indoor heat exchanger 4, and an outdoor fan 7 is installed in the vicinity of the outdoor heat exchanger 6.
- the four-way switching valve 9 is connected to the refrigerant pipe following the outdoor heat exchanger 6, the suction and discharge ports of the compressor 8, and the gas side communication pipe 11.
- the four-way switching valve 9 can switch between a heating operation and a cooling operation by switching the connection destination of the discharge port and the suction port.
- the refrigerant pipe connected to the gas side communication pipe 11 and the suction port of the compressor 8 are connected, and the discharge port of the compressor 8 and the outdoor heat exchanger 6 are connected. And are connected.
- the air conditioner 1 performs a cooling operation.
- the outdoor heat exchanger 6 and the suction port of the compressor 8 are connected, and the refrigerant is connected to the discharge port of the compressor and the gas side communication pipe 11. The pipe is connected.
- the air conditioner 1 performs a heating operation.
- FIG. 2 is a perspective view of the indoor unit 2 of the air conditioner 1 according to Embodiment 1 of the present invention.
- FIG. 3 is an explanatory diagram showing a cross section perpendicular to the longitudinal direction of the indoor unit 2 in FIG. 2.
- FIG. 4 is an explanatory diagram showing a cross section perpendicular to the longitudinal direction in the operating state of the indoor unit 2 of FIG. 2.
- FIG. 3 is an explanatory diagram of the indoor unit 2 when the operation is stopped.
- the ceiling surface T is a ceiling surface in the room where the indoor unit 2 is installed.
- the wall surface K is a wall surface on which the indoor unit 2 is installed.
- the surface on the wall surface K side is defined as the back surface of the indoor unit 2.
- the surface on the opposite side which opposes a back surface is called a front surface.
- the surface on the ceiling surface T side of the indoor unit 2 is the top surface
- the surface constituting the exterior of the indoor unit 2 is the surface opposite to the top surface is the bottom surface
- the surface on the opposite side to the right side is the left side.
- the indoor unit 2 has a housing 60 formed in a horizontally long rectangular parallelepiped shape.
- the housing 60 is covered with a front panel 63 on the front, a side panel 64 on the left and right sides, and a back panel 65 on the back.
- the front panel 63 is configured in parallel with the wall surface K, and is a single flat surface extending from the top surface to the bottom surface, except that a recess serving as the suction port 21 is formed.
- the lower end 63 a of the front panel 63 constitutes an end portion on the front side of the lower surface of the housing 60.
- the lower surface is covered with a rear panel 65, a lower panel 66, and a vertical wind direction plate 27.
- the top surface is covered with a top surface panel 68, and the top surface panel 68 includes a lattice-shaped opening, which serves as a suction port 21a.
- a slit is also formed near the center of the front panel 63 in the height direction of the housing 60, and serves as a suction port 21b.
- the lower panel 66 is parallel to the indoor floor surface.
- the housing 60 of the indoor unit 2 is not limited to a horizontally long rectangular parallelepiped shape, and is a box shape in which one or more suction ports 21 for sucking air and one or more outlet ports 22 for blowing air are provided. If there is, it is not limited only to the shape of FIG.
- the position and shape of the suction port may be provided only on the top surface or only on the front surface depending on the required air volume and design.
- the air outlet 22 is not limited to the form opened in the direction directly below the housing 60, and may be opened obliquely toward the front side of the housing 60.
- the indoor unit 2 has a horizontally long rectangular parallelepiped shape, the air outlet 22 is provided only on the lower surface of the housing 60, and the air outlet is on the front panel side.
- the blower outlet 22 is not visible when the indoor unit 2 at the time of operation stop is viewed from the front, and the design can be improved. Further, during operation, the angle at which the air is blown out can be easily directed downward, and the air can reach the floor surface.
- an interior blower 5 that generates an air flow by driving a motor (not shown) is housed inside the housing 60.
- An indoor heat exchanger 4 is disposed around the top side and the front side of the indoor blower 5.
- An air passage 40 connected to the air outlet 22 is formed below the indoor blower 5.
- right and left wind direction plates 30 are installed in order to adjust the left and right air directions before reaching the air outlet 22 of the air passage 40.
- the air outlet 22 is provided with an up / down air direction plate 27 and an up / down air direction auxiliary plate 31 for adjusting the up / down air direction.
- a filter 37 is disposed upstream of the indoor heat exchanger 4, and a drain pan 38 is disposed under the indoor heat exchanger 4 to collect condensed water generated in the indoor heat exchanger 4.
- the air passage 40 includes a back wall 22a on the back side and a front wall 22b on the front side.
- the back wall 22 a extends downward from the back side of the indoor blower 5, is formed so as to wrap around the downside of the indoor blower 5, and reaches the outlet 22. That is, the back wall 22 a forms a slope from the back side of the indoor blower 5 toward the front side, and the end 22 ab of the back wall 22 a is positioned in contact with the inside of the bottom panel 66.
- the front wall 22b of the air outlet 22 has its starting point 22ba located near the front surface immediately below the indoor blower 5, and extends obliquely downward toward the front surface from there to the air outlet 22.
- the end 22bb of the front wall 22b that is, the end on the outlet 22 side, is located immediately behind the lower end 63a of the front panel 63 of the indoor unit 2.
- FIG. 5 is a diagram showing an appearance of the blowout outlet constituent part of the indoor unit 2 in FIG.
- FIG. 5 is an external view of the state in which the up-and-down air direction plate 27 and the up-and-down air direction auxiliary plate 31 are removed from the air outlet component, and is a view as seen from the lower surface side of the indoor unit 2.
- a plurality of left and right wind direction plates 30 are installed at the air outlet 22.
- the plurality of left and right wind direction plates 30 are connected to the left and right wind direction plate driving motor 54 by a left and right wind direction plate connecting rod 72, a connecting portion 76, and a left and right wind direction plate driving motor connecting rod 75.
- the left and right wind direction plate driving motor 54 can change the direction of the left and right wind direction plate 30 by moving the left and right wind direction plate connecting rod 72 to the left and right by rotation.
- the vertical wind direction plate driving motor 51 rotates the vertical wind direction plate 27.
- the vertical wind direction auxiliary plate driving motor 53 drives the vertical wind direction auxiliary plate 31.
- the up-and-down air direction plate 27 and the up-and-down air direction auxiliary plate 31 can be independently rotated by individual motors.
- the up-and-down wind direction plate 27 is attached to the rotating shaft 32a, and is supported so as to be rotatable about the rotating shaft 32a.
- the rotary shaft 32a is located on the back side of the air outlet 22 and is disposed in the vicinity of the back wall 22a of the air outlet 22 and is disposed with a gap 29 from the end 22ab of the back wall 22a.
- the rotating shaft 32 a is disposed inside the air outlet 22.
- the up-and-down wind direction plate 27 opens in the downward direction of the air outlet 22, and the air blown out from both the air outlet 22 and the gap 29.
- the up-and-down wind direction plate 27 and the front wall 22b inside the air outlet 22 are disposed to face each other, and the space between the opposing walls serves as the air flow passage for the main flow F1 of the air flow.
- the vertical wind direction plate 27 includes a plate-like portion 27 a extending along the longitudinal direction of the air outlet 22 and a support member 32 protruding from the plate-like portion.
- the support member 32 is attached to the rotating shaft 32a.
- the vertical wind direction plate 27 moves the plate-shaped portion 27 a in the vertical direction via the support member 32, and changes the wind direction of the air blown out from the air outlet 22 in the vertical direction. As shown in FIG.
- the vertical airflow direction plate 27 rotates downward about the rotation shaft 33 during operation, opens the air outlet 22, adjusts the rotation angle, and adjusts the vertical direction of the blown wind. adjust.
- the blown air blown out from the blowout port 22 is called a main flow F1
- the blown air blown out from the gap 29 is called a substream F2.
- the up-and-down air direction plate 27 guides the main flow F ⁇ b> 1 of the blowing air at the lower part of the air outlet 22.
- the surface of the plate-like portion 27a of the up-and-down wind direction plate 27 on the main flow F1 side of the blown air has two surfaces for guiding the blown air, and forms a blowout flow path.
- the two surfaces that guide the blown air are respectively the upstream guide surface 26a and the surface disposed downstream of the upstream guide surface 26a on the upstream side of the main flow F1 of the blown air. This is referred to as a downstream guide surface 26b.
- the downstream guide surface 26b is disposed inside the outlet channel with respect to the upstream guide surface 26a.
- the vertical airflow direction plate 27 has a step 28 formed between the upstream guide surface 26a and the downstream guide surface 26b.
- the step 28 is formed on a gentle surface by, for example, a slope, a curved surface, or a combination thereof.
- the step 28 is formed in an S shape by connecting a curved surface having a large curvature so that the blown air flowing along the upstream guide surface 26a can be guided to the downstream guide surface 26b without being separated from the surface. Is formed.
- the step 28 is arranged on the leeward side from the center of the plate-like portion 27a.
- the up / down airflow direction plate 27 has a tapered surface 25 at the tip.
- the tapered surface 25 is on the main flow F1 side of the blowing air and is gently connected to the downstream guide surface 26b.
- downstream guide surface 26b and the tapered surface 25 are connected by a curved surface.
- the upstream guide surface 26a and the downstream guide surface 26b are represented as flat surfaces, but may be curved surfaces as long as they can guide the blowing air.
- the indoor unit 2 shown in FIG. 3 is in an operation stop state, and the up / down wind direction plate 27 is configured to cover the air outlet 22.
- the front end portion of the plate-like portion 27a of the up-and-down wind direction plate 27 is configured to reach the front end of the opening of the air outlet 22, that is, the terminal end 22bb of the front wall 22b when the indoor unit 2 is stopped. Yes.
- the plate-like portion 27a of the vertical wind direction plate 27 is configured so that the air outlet 22 is closed and the inside cannot be visually recognized.
- the rotating shaft 32a used as the center of rotation of the up-and-down wind direction board 27 is arrange
- the up / down airflow direction auxiliary plate 31 is driven by the up / down airflow direction auxiliary plate driving motor 53 shown in FIG. 5, so that the upper structure hits from the upper structure (fully closed state) to the lower structure (fully open state) around the rotation shaft 32a. ) Can be rotated.
- the tip of the up-and-down wind direction plate 27 rotates around a rotating shaft 32a in a circular orbit.
- a front wall 22 b is located on the front side of the air outlet 22 and above the vertical wind direction plate 27.
- a rotating shaft 33 for rotating the vertical airflow direction auxiliary plate 31 is disposed in the vicinity of the surface on the air flow path side of the front wall 22b.
- the rotating shaft 33 is disposed at a position that enters the inside of the housing from the opening of the air outlet 22, and is located at an upper portion when the vertical airflow direction plate 27 covers the air outlet 22.
- the plate-like portion 31a of the up / down airflow direction auxiliary plate 31 is provided at the tip of an arm portion 34 extending in the rotational radius direction from the rotation axis.
- the up-and-down air direction auxiliary plate 31 is installed so that the surface of the plate-like portion 31 a is substantially parallel to the direction along the rotation direction around the rotation shaft 33. That is, the plate-like portion 31 a of the up / down airflow direction auxiliary plate 31 faces the rotating shaft 33.
- the up-and-down air direction auxiliary plate 31 can rotate around the rotation shaft 33 in the front-rear direction of the housing 60.
- the up / down airflow direction auxiliary plate 31 is housed inside the air outlet 22 when the operation is stopped, and the plate-like portion 31 a has its end portion directed downward and a part of the air passage 40.
- the entire plate-like portion 31 a is protruded to a position protruding downward from the lower end of the air outlet 22, so that the plate-like portion 31 a is substantially horizontal. Can be positioned.
- assistant board 31 is extended along the longitudinal direction of the blower outlet 22, ie, the left-right direction of the indoor unit 2, and the upper and lower sides of the main stream F1 of the blown-off wind blown from the blower outlet 22
- the direction of wind direction can be changed.
- the plate-like portion 31 a of the up-and-down air direction auxiliary plate 31 and the plate-like portion 27 a of the up-and-down air direction plate 27 form an outlet channel.
- the plate-like portion 31a of the up-and-down airflow direction auxiliary plate 31 is formed in a plate shape having a curved surface, but may be a flat plate shape as long as it can guide the blowing air.
- the up-and-down air direction auxiliary plate 31 is driven in the up-and-down air direction auxiliary plate driving motor 53 shown in FIG.
- the range from the structure hit state to the front structure hit state can be rotated.
- the front structure contact state is a state in which the arm portion 34 is brought into contact with the end 22bb of the front wall 22b by being further rotated forward from the position of the up / down airflow direction auxiliary plate 31 shown in FIG.
- the tip of the up / down airflow direction auxiliary plate 31 rotates around a rotating shaft 33 in a circular orbit.
- the rotary shaft 33 of the vertical airflow direction auxiliary plate 31 is located on the front side inside the air outlet 22, and the rotary shaft 32 a of the vertical airflow direction plate 27 is on the back side inside the air outlet 22.
- the up / down wind direction plate 27 leveles the plate-like portion 27 a and covers the air outlet 22.
- the up-and-down air direction auxiliary plate 31 moves the plate-shaped part 31 a to the back side, and the entire up-and-down air direction auxiliary plate 31 is accommodated in the outlet 22.
- the up / down air direction auxiliary plate 31 is disposed on the upper side of the up / down air direction plate 27, and the rotation shaft 33 is located on the upper end of the up / down air direction plate 27. Further, the plate-like portion 31 a of the up-and-down air direction auxiliary plate 31 is positioned on the front side of the rotation shaft 32 a of the up-and-down air direction plate 27 and above the plate-like portion 27 a of the up-and-down air direction plate 27.
- the up-and-down air direction plate 27 and the up-and-down air direction auxiliary plate 31 are housed in the air outlet 22 as described above, so that indoor dust does not accumulate.
- the vertical wind direction plate 27 is rotated from the front side to the back side of the housing 60, and the air outlet 22 is opened.
- the vertical wind direction auxiliary plate 31 rotates the tip from the back side of the housing 60 toward the front side after the vertical wind direction plate 27 rotates to a position that does not intersect the circular orbit of rotation of the vertical wind direction auxiliary plate 31. . Since the trajectory rotating the vertical airflow direction plate 27 and the trajectory rotating the vertical airflow direction auxiliary plate 31 intersect each other, when changing the opening / closing operation or the airflow direction of the air outlet 22, it is necessary to operate them so as not to contact each other. However, with this configuration, it is possible to freely adjust the blowing air in the vertical direction while keeping the two wind direction plates in a narrow space, and a large blowing channel is provided when the indoor unit 2 is in operation. It becomes possible.
- FIG.3 and FIG.4 An arrow A shown in the vicinity of the suction port 21a and the suction port 21b shown in FIG. 4 indicates the flow of air taken into the indoor unit 2 from the suction port.
- the air sucked from the suction ports 21 arranged on the top surface and the front surface of the indoor unit 2 is heat-exchanged with the refrigerant flowing inside the indoor heat exchanger 4 when passing through the indoor heat exchanger 4.
- the air passing through the indoor heat exchanger 4 is cooled if the air conditioner 1 is in the cooling operation, and is warmed in the heating operation.
- the conditioned air that has passed through the indoor heat exchanger 4 and exchanged heat with the refrigerant reaches the indoor blower 5.
- the air that has passed through the inside of the indoor blower 5 or the gap between the indoor blower 5 and the back panel 65 passes through the air passage 40 and is adjusted in the left-right direction by the left-right wind direction plate 30.
- the air that has passed through the left and right wind direction plates 30 is blown out from the air outlet 22 toward the front or the lower side of the indoor unit 2 along the vertical air direction plate 27 and the vertical air direction auxiliary plate 31 installed at the air outlet 22.
- the up-and-down wind direction plate 27 rotates around the rotation shaft 32a disposed near the lower end of the opening of the air outlet 22, moves the tip below the air outlet 22, The tip is directed obliquely downward of the indoor unit 2. Since the plate-like portion 27a is disposed at a position close to the rotation shaft 32a, the upstream end portion 27aa of the plate-like portion 27a remains in the state where the up-and-down wind direction plate 27 is rotated and the air outlet 22 is opened. The air outlet 22 is located at the opening. Therefore, the plate-like portion 27 a of the up-and-down wind direction plate 27 is in a state of projecting obliquely downward from the housing 60 starting from the opening portion of the air outlet 22.
- the up-and-down air direction auxiliary plate 31 rotates from the state accommodated in the air outlet 22 shown in FIG. 3 around the rotation shaft 33 arranged in the vicinity of the lower end of the opening of the air outlet 22, A plate-like portion 31a that protrudes downward from the outlet 22 and guides the blown air is disposed so as to be in a substantially horizontal state. Since the plate-like portion 31a is provided at a position away from the rotation shaft 33, the up-and-down air direction auxiliary plate 31 is rotated at a predetermined angle, so that the upstream end 31aa and the downstream end 31ab of the plate-like portion 31a. Moves to a position protruding from the opening of the air outlet 22.
- the plate-like portion 31 a of the up / down airflow direction auxiliary plate 31 can be positioned on the front side of the housing 60 near the tip of the up / down airflow direction plate 27. That is, the plate-like portion 27a of the up / down airflow direction plate 27 is located on the upstream side of the blowout flow path, and the plate-like portion 31a of the up / down airflow direction auxiliary plate 31 is located on the downstream side of the blowout flow path and from the opening of the blowout port 22 Arranged in series to form a blowout flow path.
- the blowing air is guided by the up / down air direction plate 27 and the up / down air direction auxiliary plate 31 and blows out toward the front surface side of the housing 60.
- the plate-shaped part 31a protrudes from the blower outlet 22, and as the distance from the end 22bb of the front wall 22b of the air passage inside the blower outlet 22 is larger, the area of the blowout flow path becomes larger and the airflow in the horizontal direction is increased.
- the air path resistance at the time of forming can be reduced.
- the up-and-down airflow direction plate 27 can be stopped not only at the angle shown in FIG. 4 but also at each angle from the state where the air outlet 22 is closed as shown in FIG. 3 to the state where the tip is directed directly downward.
- the up-and-down air direction auxiliary plate 31 can also be rotated at respective angles from the state housed inside the air outlet 22 as shown in FIG. 3 to the substantially horizontal state shown in FIG. Since the vertical wind direction plate 27 and the vertical wind direction auxiliary plate 31 are provided so as to be rotatable as described above, the angle at which the air is blown out can be directed downward as well as the front side during operation. . In the case of the positions of the up-and-down air direction plate 27 and the up-and-down air direction auxiliary plate 31 shown in FIG.
- the indoor unit 2 is in a forward blowing state.
- the main flow F1 of the blown air is guided by the upstream guide surface 26a, the downstream guide surface 26b of the up / down air direction plate 27, and the plate-like portion 31a of the up / down air direction auxiliary plate 31, and is blown out toward the front surface of the indoor unit 2.
- FIG. 6 is an enlarged view around the air outlet 22 of FIG.
- the plate-like portion 27a of the vertical wind direction plate 27 is opened at an angle ⁇ with the horizontal direction.
- the blown wind passes through the left and right wind direction plates 30 and is then guided to the upper surface of the upper and lower wind direction plates 27, that is, the surface directed in the direction of the inside of the casing when the operation is stopped, and the main flow F1 that changes the wind direction and the rear wall 22a It is divided into a side flow F2 that is generated from a gap 29 between the terminal end 22ab and the peripheral portion of the rotary shaft 32a of the vertical wind direction plate 27.
- the secondary flow F2 flows along the outer surface of the up-and-down airflow direction plate 27 by the Coanda effect, that is, the surface on the side that becomes the design surface by closing the air outlet 22 when the operation is stopped. .
- the main flow F1 hits the upstream guide surface 26a of the vertical airflow direction plate 27, and the flow is changed in the direction along the surfaces of the upstream guide surface 26a and the downstream guide surface 26b.
- the main flow F ⁇ b> 1 whose flow direction has been changed passes over the plate-like portion 31 a of the vertical airflow direction auxiliary plate 31 that is directed substantially horizontally and is blown out toward the front surface of the indoor unit 2.
- a clearance 50 is provided between the downstream guide surface 26b of the up / down airflow direction plate 27 and the plate-like portion 31a of the up / down airflow direction auxiliary plate 31 so that the blowing air flows in the direction in which the front end of the up / down airflow direction plate 27 faces.
- a part of the main flow F1 that flows along the surface of the up-and-down airflow direction plate 27 flows along the downstream guide surface 26b and then flows into the gap 50 as a side flow G1.
- the substream G1 that has flowed into the gap 50 flows along the lower surface of the plate-like portion 31a of the vertical airflow direction auxiliary plate 31, that is, the surface that does not face the rotating shaft 33 due to the Coanda effect.
- the upstream end 31aa of the plate-like portion 31a of the up-and-down airflow direction auxiliary plate 31 is located upstream of the downstream guide surface tip 26bb which is the downstream end of the downstream guide surface 26b. That is, the plate-like portion 31a of the up-and-down air direction auxiliary plate 31 and the downstream guide surface 26b overlap each other by the dimension B shown in FIG. Further, the lower surface of the plate-like portion 31a of the vertical airflow direction auxiliary plate 31 has a tangent line substantially parallel to the downstream guide surface 26b at the upstream end portion 31aa.
- the substream G1 that has flowed into the gap 50 can easily flow along the lower surface of the plate-like portion 31a of the vertical airflow direction auxiliary plate 31.
- the upstream end portion 31aa of the plate-like portion 31a of the up-and-down air direction auxiliary plate 31 is positioned on a virtual plane that extends the upstream guide surface 26a in the downstream direction of the blowout flow path.
- the secondary flow F2 and the secondary flow G1 flow on the surface opposite to the surface facing the main flow F1 of the vertical airflow direction plate 27 and the vertical airflow direction auxiliary plate 31, and the plate-like portion 27a of the vertical airflow direction plate 27 and It is possible to prevent a temperature difference from occurring in the air on both surfaces of the plate-like portion 31a of the vertical airflow direction auxiliary plate 31. That is, when the indoor unit 2 of the air conditioner is performing the cooling operation, the warm and humid room air 83 comes into contact with the plate-like portion 27a of the vertical airflow direction plate 27 and the plate-like portion 31a of the vertical airflow direction auxiliary plate 31. Therefore, it is possible to suppress the occurrence of condensation on the vertical wind direction plate 27 and the vertical wind direction auxiliary plate 31.
- FIG. 7 is an explanatory view showing a cross section of a comparative example in which the shape of the plate-like portion 27a of the up-and-down wind direction plate 27 is changed with respect to the indoor unit 2 of FIG.
- FIG. 8 is an enlarged view around the air outlet 22 of FIG.
- the up-and-down wind direction plate 127 in the comparative example has a guide surface 126 and a tapered surface 125 on the main flow F1 side of the blowing air.
- the tapered surface 125 is on the distal end side of the up / down airflow direction plate 127 and is gently connected to the guide surface 126.
- the vertical wind direction plate 127 does not have the downstream guide surface 26b and the step 28.
- the conditioned air that has passed through the indoor heat exchanger 4 passes through the air passage 40 and is adjusted in the left-right direction by the left-right wind direction plate 30.
- the air that has passed through the left and right wind direction plates 30 is blown out from the air outlet 22 toward the front or the lower side of the indoor unit 2 along the upper and lower air direction plates 127 and the upper and lower air direction auxiliary plates 31 installed at the air outlet 22.
- the vertical wind direction plate 127 rotates around the rotation shaft 32 a and moves the tip below the outlet 22 as in the first embodiment.
- the vertical airflow direction auxiliary plate 31 also rotates around the rotation shaft 33 from the state accommodated in the air outlet 22 and protrudes downward from the air outlet 22 to guide the airflow.
- the shape portion 31a is moved in a substantially horizontal state, that is, a straight line connecting the downstream end portion 31ab and the upstream end portion 31aa is substantially horizontal.
- the blowing air is guided by the up / down air direction plate 127 and the up / down air direction auxiliary plate 31 and blows out toward the front side of the housing 60.
- the main flow F1 that changes the wind direction is divided into a side flow F2 that flows out from a gap 29 between the terminal end 22ab of the back wall 22a and the peripheral portion of the rotary shaft 32a of the vertical wind direction plate 127.
- the secondary flow F2 flows along the outer surface of the vertical wind direction plate 127, that is, the surface that becomes the design surface when the operation is stopped, due to the Coanda effect.
- the main flow F ⁇ b> 1 hits the guide surface 126 of the vertical wind direction plate 127 and the flow is changed in a direction along the surface of the guide surface 126.
- the main flow F ⁇ b> 1 whose flow direction has been changed passes over the plate-like portion 31 a of the vertical airflow direction auxiliary plate 31 that is directed substantially horizontally and is blown out toward the front surface of the indoor unit 2.
- the taper surface 125 of the vertical airflow direction plate 127 and the plate-like portion 31a of the vertical airflow direction auxiliary plate 31 are arranged with a gap 150a so that a part of the main flow F1 flows.
- the upstream end portion 31aa of the plate-like portion 31a of the vertical airflow direction auxiliary plate 31 is located on a virtual surface obtained by extending the guide surface 126 of the vertical airflow direction plate in the downstream direction of the blowout flow path. Therefore, the gap 150a is narrowed. Thereby, the side flow G2 which flows out from the clearance gap 150a decreases.
- the air path formed by the tapered surface 125 and the plate-like portion 31 a of the up-and-down air direction auxiliary plate 31 has a shape that expands from the upstream side to the downstream side, and the side flow G2 of the up-and-down air direction auxiliary plate 31 It is difficult to flow along the lower surface of the plate-like portion 31a. As a result, the warm and humid room air 83 is likely to come into contact with the lower surface of the plate-like portion 31a of the vertical airflow direction auxiliary plate 31 that is cooled by the blown air during the cooling operation, and condensation is likely to occur.
- FIG. 9 is a view showing a state in which the angle of the vertical wind direction plate 27 is changed with respect to FIG.
- the vertical wind direction plate 127 is opened downward with respect to FIG. 8.
- the angle formed by the vertical wind direction plate 127 and the horizontal direction is an angle ⁇ in FIG. 8 and an angle ⁇ in FIG.
- the angle ⁇ and the angle ⁇ have a relationship of ⁇ ⁇ .
- the gap 150b is larger than the gap 150a in FIG. G3 air volume increases.
- the upstream end 31aa of the plate-like portion 31a of the up / down airflow direction auxiliary plate 31 is not located on the virtual plane obtained by extending the guide surface 126 of the up / down airflow direction plate in the downstream direction of the blowout flow path.
- the secondary flow G3 not only has a large flow rate, but also blows out into the room at an angle close to the angle ⁇ of the up-and-down wind direction plate 127, and thus directly contacts a person existing in the room.
- the substream G3 different from the mainstream F1 flows into the room, a person who comes into contact with the substream G3 feels a draft and causes a problem.
- the vertical wind direction plate 27 has an angle ⁇ with the horizontal direction in the operating state shown in FIG. This angle ⁇ is equal to the angle ⁇ in FIG. Therefore, in the operation state shown in FIG. 6, the angle of the vertical wind direction plate 27 is set to be smaller than the angle ⁇ of the vertical wind direction plate 127 in the comparative example shown in FIG. Since it is difficult to contact a person in the room, the draft feeling felt by the person in the room can be suppressed.
- the up-and-down air direction auxiliary plate is obtained by the Coanda effect while making the flow rate of the side flow G3 not to affect the person in the room. It is difficult to let the blowing air flow along the lower surface of 31. Therefore, in Embodiment 1, the indoor unit 2 of the air conditioner 1 is provided in the housing 60 whose back side is attached to the wall surface K of the room, the suction port 21 provided in the housing 60, and the housing 60.
- the air outlet 22, the indoor heat exchanger 4 and the indoor blower 5 arranged in the air passage from the suction port 21 to the air outlet 22, and the air outlet 22 are rotatably arranged.
- a vertical flow direction plate 27 that changes the direction of the blown air up and down is formed at a position protruding to the upper and lower airflow direction plates 27.
- a vertical airflow direction auxiliary plate 31 that forms a blowout flow path at the lower part of the blowout port 22 and changes the direction of the blown wind up and down.
- the up-and-down wind direction plate 27 is located on the blowout flow path side and guides the flow of blown air
- the upstream guide surface 26a is located on the blowout flow path side and downstream of the blowout flow path and on the blowout flow path.
- An upstream end 31aa located on the upstream side of the outlet flow passage in the vertical airflow direction auxiliary plate 31 than the downstream guide surface 26b. Is also located on the inner side of the blowout flow path and upstream of the downstream guide surface distal end portion 26bb which is the downstream end of the blowout flow path in the downstream guide surface 26b.
- the downstream guide surface 26b and the up / down airflow direction auxiliary plate 31 are positioned so as to overlap, the side flow G1 flowing in the gap 50 between the downstream side guide surface 26b and the up / down airflow direction auxiliary plate 31 is caused by the Coanda effect. It is easy to flow along the lower surface of the auxiliary plate 31. Therefore, even when the air conditioner 1 is in the cooling operation, the indoor air 83 does not come into contact with the cooled vertical airflow direction auxiliary plate 31, so that dew condensation generated on the lower surface of the plate-like portion 31 a of the vertical airflow direction auxiliary plate 31. Can be suppressed. Further, since the side flow G1 can be flowed to the lower side surface of the vertical airflow direction auxiliary plate 31 without increasing the amount of air flowing through the gap 50, it is possible to suppress a person in the room from feeling a draft.
- the up-and-down air direction auxiliary plate 31 has an upstream end 31aa on the outlet flow passage side on the upstream guide surface 26a of the up-and-down air direction plate 27 downstream of the flow of the outlet air. Located on a virtual plane extending to the side. Further, the upstream end 31aa of the vertical airflow direction auxiliary plate 31 is positioned with a predetermined distance on the upstream guide surface 26a and on the downstream side of the blowout flow path. Further, the downstream guide surface 26b and the upstream guide surface 26a are connected by a curved surface.
- the main flow F1 of the blowing air guided by the upstream guide surface 26a is blown out in the intended direction by the plate-like portion 31a of the vertical air direction auxiliary plate 31.
- the blowing wind which flows by adhering to the surface of the upstream guide surface 26a directly adheres to the downstream guide surface 26b from the step 28 and flows, the up-and-down airflow direction auxiliary plate can be efficiently produced without increasing the flow rate more than necessary.
- the substream G1 can be made to flow on the lower surface of 31. Thereby, it can suppress that the person who is indoors feels a draft feeling.
- the upstream end 31aa of the up-and-down airflow direction auxiliary plate 31 has a tangent in the direction along the outlet channel parallel to the downstream guide surface 26b.
- assistant board 31 is arrange
- the downstream end 31ab located on the downstream side of the outlet flow path of the vertical airflow direction auxiliary plate 31 is directed toward the front surface of the casing.
- the vertical wind direction plate 27 and the vertical wind direction auxiliary plate 31 have the rotation shafts 32a and 33 serving as the center of rotation disposed inside the outlet 22 to support the vertical wind direction.
- the plate 31 includes a plate-like portion 31 a that guides the blown air and forms a blow-out flow path, and the plate-like portion 31 a is located so as to protrude from the lower portion of the blowout port 22.
- assistant board 31 is accommodated in the blower outlet 22 at the time of operation stop.
- the vertical wind direction plate 26 covers the air outlet 22 when the operation is stopped.
- blower outlet 22 is opened in the lower surface of the housing
- the casing 60 is a rectangular parallelepiped and the air outlet 22 is opened on the lower surface.
- the plate-like portion 31a of the vertical airflow direction auxiliary plate 31 so as to protrude from the blowout port 22, a large blowout flow path can be taken, so that an effect of further reducing the wind path resistance can be obtained.
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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)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
Description
<空気調和機1の冷媒回路13の構成>
図1は、本発明の実施の形態1における空気調和機1の冷媒回路を示した概略図である。図1に示されるように、空気調和機1は、室内機2と室外機3とがガス側連絡配管11及び液側連絡配管12により互いに接続されており、これにより冷媒回路13が構成されている。室内機2は、室内熱交換器4を内部に備えており、室内熱交換器4に室内機2の外部につながる冷媒配管が接続されている。室外機3は、内部に四方切換弁9と、圧縮機8と、室外熱交換器6と、膨張弁10とが備えられており、冷媒配管により接続されている。以上のように、冷媒回路13は、室内熱交換器4、四方切換弁9、圧縮機8、室外熱交換器6、膨張弁10が冷媒配管により接続され、冷凍サイクルを構成している。また、室内熱交換器4の近傍には、室内送風機5が配置されており、室外熱交換器6の近傍には、室外送風機7が設置されている。
室外機3の内部において、膨張弁10と室外熱交換器6と四方切換弁9とは冷媒配管により直列に接続されている。四方切換弁9は、室外熱交換器6、圧縮機8の吸入口及び吐出口、ガス側連絡配管11に続く冷媒配管に接続されている。四方切換弁9は、吐出口及び吸入口の接続先を切り替えることにより、暖房運転と冷房運転を切り替えることができる。図1において実線で示される四方切換弁9の経路の場合は、ガス側連絡配管11につながる冷媒配管と圧縮機8の吸入口とが接続され、圧縮機8の吐出口と室外熱交換器6とが接続される。この時、空気調和機1は冷房運転を行う。一方、図1において破線で示される四方切換弁9の経路の場合は、室外熱交換器6と圧縮機8の吸入口とが接続され、圧縮機の吐出口とガス側連絡配管11につながる冷媒配管とが接続される。この時、空気調和機1は暖房運転を行う。
図2は、本発明の実施の形態1における空気調和機1の室内機2の斜視図である。図3は、図2の室内機2の長手方向に垂直な断面を表した説明図である。図4は、図2の室内機2の運転状態における長手方向に垂直な断面を表した説明図である。なお、図3は、室内機2が運転停止状態における説明図である。図2において、天井面Tは、室内機2が設置された室内の天井面である。壁面Kは、室内機2が設置されている壁面である。室内機2において、壁面K側にある面を室内機2の背面とする。室内機2の外観を構成する面において、背面と対向する反対側の面を前面と呼ぶ。室内機2の天井面T側にある面を天面とし、室内機2の外観を構成する面において、天面と対向する反対側の面を下面とし、図2の右側の側面を右側面とし、右側面と対向する反対側の面を左側面とする。また、室内機2の内部部品についても同様の説明をする。
風路40は、背面側にある背面壁22aと前面側にある前面壁22bとを備える。背面壁22aは、室内送風機5の背面側から下方向に向けて延び、室内送風機5の下側へ回り込むように形成され、吹出口22に至る。つまり、背面壁22aは、室内送風機5の背面側から前面方向に向かって斜面を形成し、背面壁22aの終端22abが、下面パネル66の内部側に接して位置している。
上下風向板27は、回転軸32aに取り付けられており、回転軸32aを中心に回動可能に支持されている。回転軸32aは、吹出口22の背面側に位置し、吹出口22の背面壁22aの近傍に配置されており、背面壁22aの終端22abから隙間29をもって配置されている。また、回転軸32aは、吹出口22の内部に配置されている。運転時においては吹出口22の下方向に上下風向板27が開き、吹出風は吹出口22と隙間29の両方から吹き出すことになる。上下風向板27と吹出口22の内部の前面壁22bとは対向して配置され、対向するその間の空間は吹出風の主流F1の吹出流路となる。上下風向板27は、吹出口22の長手方向に沿って延びる板状部27aとその板状の部分から凸している支持部材32を備えている。支持部材32は、回転軸32aに取り付けられている。上下風向板27は、支持部材32を介して板状部27aを上下方向に動かし、吹出口22から吹出される空気の風向を上下方向に変更する。図4に示されるように、上下風向板27は、運転時には回転軸33を中心に下側に回転し、吹出口22を開けるとともに、回転する角度が調整され、吹き出される風の上下方向を調整する。吹出口22から吹き出す吹出風を主流F1と呼び、隙間29から吹き出す吹出風を副流F2と呼ぶ。上下風向板27が開いた時、上下風向板27は、吹出口22の下部において吹出風の主流F1をガイドする。
吹出口22の前面側であり上下風向板27に対し上方に、前面壁22bが位置している。前面壁22bの空気流路側の面の近傍に上下風向補助板31を回転させる回転軸33が配置されている。回転軸33は、吹出口22の開口部から筐体内部側に入った位置に配置されており、上下風向板27が吹出口22を覆った時にはその上部に位置する。上下風向補助板31の板状部31aは、回転軸から回転半径方向に延びる腕部34の先端に設けられている。上下風向補助板31は、回転軸33の周りの回転方向に沿った方向に板状部31aの面を略平行にするように設置されている。つまり、上下風向補助板31の板状部31aは回転軸33の方に面を向けている。
図3及び図4に示される様に、上下風向補助板31の回転軸33は、吹出口22内部の前側に位置し、上下風向板27の回転軸32aは、吹出口22内部の背面側に位置する。図3に示される様に、運転停止状態において、上下風向板27は、その板状部27aを水平にし、吹出口22を覆う。また、上下風向補助板31は、その板状部31aを背面側に移動させ、上下風向補助板31の全体が吹出口22の内部に納まる。運転停止状態においては、上下風向補助板31は、上下風向板27の上部に配置され、回転軸33は、上下風向板27の先端側の上部に位置する。また、上下風向補助板31の板状部31aは、上下風向板27の回転軸32aの前側で、上下風向板27の板状部27aの上部に位置する。運転停止状態において、上記の様に上下風向板27と上下風向補助板31は、吹出口22に収納されることから、室内の埃が堆積することが無い。
以下に、図3及び図4に基づき室内機2内の空気の流れを説明する。図4に示された吸込口21a及び吸込口21bの近傍に示された矢印Aは、吸込口から室内機2内に取り込まれる空気の流れを示す。室内機2の天面及び前面に配置されている吸込口21から吸いこまれた空気は、室内熱交換器4を通過する際に室内熱交換器4の内部を流れる冷媒と熱交換される。室内熱交換器4を通過する空気は、空気調和機1が冷房運転であれば、冷やされ、暖房運転であれば、温められる。室内熱交換器4を通過し冷媒と熱交換された調和空気は、室内送風機5に至る。室内送風機5の内部、もしくは室内送風機5と背面パネル65との隙間を通過した空気は、風路40を通過し、左右風向板30により左右方向の調整がされる。左右風向板30を通過した空気は、吹出口22に設置された上下風向板27及び上下風向補助板31に沿って、吹出口22から室内機2の前方又は下方に向かって吹き出される。
図7は、図4の室内機2に対し上下風向板27の板状部27aの形状を変更した比較例の断面を表した説明図である。図8は、図7の吹出口22周辺の拡大図である。図7及び図8に示された比較例においては、実施の形態1の室内機2に対して上下風向板27の板状部27aの形状のみが異なる。図7に示されるように、比較例における上下風向板127は、吹出風の主流F1側にガイド面126とテーパー面125を有する。テーパー面125は、上下風向板127の先端側にあり、ガイド面126となだらかに接続されている。なお、上下風向板127は、実施の形態1と異なり、下流側ガイド面26b及び段差28を有していない。実施の形態1と同様に室内熱交換器4を通過し調和された空気は、風路40を通過し、左右風向板30により左右方向の調整がされる。左右風向板30を通過した空気は、吹出口22に設置された上下風向板127及び上下風向補助板31に沿って、吹出口22から室内機2の前方又は下方に向かって吹き出される。
上記の様に、図7~図9に示された上下風向板127の形状の場合、副流G3の流量を室内にいる人に対し影響を与えない程度にしつつ、コアンダ効果によって上下風向補助板31の下側の面に沿って吹出風を流すのは困難である。よって、実施の形態1において、空気調和機1の室内機2は、背面側が室内の壁面Kに取り付けられる筐体60と、筐体60に設けられた吸込口21と、筐体60に設けられた吹出口22と、吸込口21から吹出口22に至る風路に配置された室内熱交換器4及び室内送風機5と、吹出口22に回動可能に配置され、吹出口22の下端から下部に突出した位置で吹出口22から吹き出される吹出風の吹出流路を形成し、吹出風の方向を上下に変更する上下風向板27と、吹出口22において、上下風向板27より筐体60の前面側に位置し、吹出口22の下部で吹出流路を形成し、吹出風の方向を上下に変更する上下風向補助板31と、を備える。上下風向板27は、吹出流路側に位置し吹出風の流れを案内する上流側ガイド面26aと、吹出流路側に位置し上流側ガイド面26aよりも吹出流路の下流側かつ吹出流路の外側に配置され、吹出風の流れを案内する下流側ガイド面26bと、を備え、上下風向補助板31において吹出流路の上流側に位置する上流側端部31aaは、下流側ガイド面26bよりも吹出流路の内側に位置し、かつ下流側ガイド面26bにおいて吹出流路の下流側の端部である下流側ガイド面先端部26bbよりも上流側に位置する。
このように構成されることにより、空気調和機1の室内機2は、風路抵抗を抑えながら意図する方向に吹出風の主流F1を向けることができ、また、上下風向補助板31の下側の面に吹出風の一部を流すことができる。また、下流側ガイド面26bと上下風向補助板31が、重なって位置しているため、下流側ガイド面26bと上下風向補助板31との隙間50に流れる副流G1は、コアンダ効果により上下風向補助板31の下側の面に沿って流れやすくなっている。そのため、空気調和機1が冷房運転時においても、室内空気83が冷却された上下風向補助板31に接触することが無いため、上下風向補助板31の板状部31aの下側面に発生する結露を抑制することができる。また、隙間50に流す風量を多くしなくても、上下風向補助板31の下側面に副流G1を流すことができるため、室内にいる人がドラフト感を感じるのを抑制することができる。
このように構成されることにより、上記の効果に加えて、上流側ガイド面26aによって案内された吹出風の主流F1は、上下風向補助板31の板状部31aにより意図する方向に吹き出される。そして、上流側ガイド面26aの表面に付着して流れる吹出風がそのまま段差28から下流側ガイド面26bに付着して流れるため、流量を必要以上に多くすることなく、効率的に上下風向補助板31の下側面に副流G1を流すことができる。これにより、室内にいる人がドラフト感を感じるのを抑制することができる。
このように構成されることにより、下流側ガイド面26bと上下風向補助板31との隙間50に流れる副流G1は、コアンダ効果により、さらに上下風向補助板31の下側の面に沿って流れやすくなっている。そのため、上下風向補助板31の板状部31aの下側面に発生する結露を抑制する効果を更に向上させることができる。
このように構成されることにより、筐体60が直方体で下面に吹出口22が開口された空気調和機1において、上記に述べた効果を得ることができる。特に上下風向補助板31の板状部31aを吹出口22から突出させて位置することにより、吹出流路を大きく取ることができるため、風路抵抗を更に低減させる効果が得られる。
Claims (11)
- 背面側が室内の壁面に取り付けられる筐体と、
前記筐体に設けられた吸込口と、
前記筐体に設けられた吹出口と、
前記吸込口から前記吹出口に至る風路に配置された室内熱交換器及び室内送風機と、
前記吹出口に回動可能に配置され、前記吹出口の下部で前記吹出口から吹き出される吹出風の吹出流路を形成し、前記吹出風の方向を上下に変更する上下風向板と、
前記上下風向板より前記筐体の前面側に位置し、前記吹出口の下端から下部に突出した位置で前記吹出流路を形成し、前記吹出風の方向を上下に変更する上下風向補助板と、を備え、
前記上下風向板は、
前記吹出流路側に位置し前記吹出風の流れを案内する上流側ガイド面と、
前記吹出流路側に位置し前記上流側ガイド面よりも前記吹出流路の下流側かつ前記吹出流路の外側に配置され、前記吹出風の流れを案内する下流側ガイド面と、を備え、
前記上下風向補助板において前記吹出流路の上流側に位置する上流側端部は、
前記下流側ガイド面よりも前記吹出流路の内側に位置し、かつ前記下流側ガイド面において前記吹出流路の下流側の端部である下流側ガイド面先端部よりも上流側に位置する、空気調和機の室内機。 - 前記上下風向補助板は、
前記吹出流路側の上流側端部が、
前記上下風向板の前記上流側ガイド面を前記吹出風の流れの下流側に延長した仮想面上に位置する、請求項1に記載の空気調和機の室内機。 - 前記上下風向補助板の上流側端部は、
前記上流側ガイド面と、前記吹出流路の下流側に所定の距離を持って位置されている、請求項1又は2に記載の空気調和機の室内機。 - 前記下流側ガイド面と前記上流側ガイド面との間は、
曲面により接続されている、請求項1~3の何れか1項に記載の空気調和機の室内機。 - 前記上下風向補助板の前記上流側端部は、
前記吹出流路に沿った方向の接線が、前記下流側ガイド面と平行である、請求項1~4の何れか1項に記載の空気調和機の室内機。 - 前記上下風向補助板は、
前記下流側ガイド面との間に所定の距離を持って配置される、請求項1~5の何れか1項に記載の空気調和機の室内機。 - 前記上下風向補助板の前記吹出流路の下流側に位置する下流側端部は、
前記筐体の前面方向に向けられる、請求項1~6の何れか1項に記載の空気調和機の室内機。 - 前記上下風向板及び前記上下風向補助板は、
回動する中心となる回転軸が前記吹出口の内部に配置され、
前記上下風向補助板は、
前記吹出風を案内し前記吹出流路を形成する板状部を備え、
該板状部は、
前記吹出口の下部に突出して位置する、請求項1~7の何れか1項に記載の空気調和機の室内機。 - 前記上下風向補助板は、
運転停止時に前記吹出口の内部に収納される、請求項1~8の何れか1項に記載の空気調和機の室内機。 - 前記上下風向板は、
運転停止時に前記吹出口を覆う、請求項1~9の何れか1項に記載の空気調和機の室内機。 - 前記吹出口は、
前記筐体の下面に開口され、
前記上下風向補助板は、
前記吹出口から突出している、請求項1~10の何れか1項に記載の空気調和機の室内機。
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