WO2019187895A1 - Indoor unit of air conditioner - Google Patents
Indoor unit of air conditioner Download PDFInfo
- Publication number
- WO2019187895A1 WO2019187895A1 PCT/JP2019/007257 JP2019007257W WO2019187895A1 WO 2019187895 A1 WO2019187895 A1 WO 2019187895A1 JP 2019007257 W JP2019007257 W JP 2019007257W WO 2019187895 A1 WO2019187895 A1 WO 2019187895A1
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- WO
- WIPO (PCT)
- Prior art keywords
- air
- indoor unit
- outlet
- movable
- side wall
- 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
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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
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0025—Cross-flow or tangential fans
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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
- F24F13/08—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
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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
- F24F13/24—Means for preventing or suppressing noise
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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
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
Definitions
- This disclosure relates to an indoor unit of an air conditioner.
- Patent Document 1 discloses a structure in which walls that rise from the guide surface of the flap are provided at both ends in the longitudinal direction of the flap of the indoor unit of the air conditioner.
- An object of the present disclosure is to provide an indoor unit of an air conditioner that is unlikely to generate surging.
- An indoor unit of an air conditioner that solves this problem is an indoor unit body having an inlet and an outlet, a heat exchanger that exchanges heat between air sucked from the inlet, and heat exchange by the heat exchanger.
- a cross flow fan configured to blow out the air from the air outlet, and the cross flow fan is configured such that the cross-sectional area is widened by the lower wall, the left and right side walls, and the upper wall.
- the blowout flow path for guiding the blown air to the blowout port is formed, and the both side walls are provided so as to protrude from the blowout port at least during the air conditioning operation.
- the air blown out from the outlet is restricted from flowing in the left-right direction of the outlet by the side wall, so that the outlet passage can be extended from the outlet.
- the static pressure of a blowing flow path can be raised, the air volume in a blowing flow path can be increased.
- the ventilation resistance (internal pressure loss) of the indoor unit main body is increased, the backflow of air from both ends in the left-right direction of the air outlet can be suppressed, so that surging hardly occurs.
- the lower wall is provided so as to protrude from the air outlet at least during an air conditioning operation.
- the air blown out from the air outlet is restricted from flowing in the left and right directions and downward from the air outlet by the both side walls and the lower wall.
- the blowing channel can be extended from the blowing port.
- the upper wall is provided so as to protrude from the air outlet at least during an air conditioning operation.
- the air blown from the air outlet is restricted from flowing in the left and right directions and upward from the air outlet by the both side walls and the upper wall.
- the blowing channel can be extended from the blowing port.
- the outlet passage having the function of the diffuser becomes longer, so that the static pressure of the outlet passage can be further increased.
- the air volume in the flow path can be further increased. Further, when the ventilation resistance (internal pressure loss) of the indoor unit main body becomes high, the backflow of air from both the left and right ends of the air outlet and from above can be suppressed, so surging is less likely to occur.
- the air outlet channel protrudes from the air outlet, and the distance between the left and right side walls on the downstream side of the air outlet in the air outlet channel is the left and right sides of the air outlet. It is preferable that it is formed to be smaller than the length in the direction.
- the storage unit can be changed between a housing state in which the constituent elements including the side wall constituting the outlet passage do not protrude from the outlet and a protruding state in which at least the side wall protrudes from the outlet. It is preferable that the moving mechanism is in the protruding state during the air-conditioning operation and is in the storage state when the air-conditioning operation is stopped.
- the moving mechanism when the surging occurs, preferably moves the component so as to reduce a cross-sectional area of a portion protruding from the outlet in the outlet passage. .
- the ratio (H / D) of the height H of the indoor unit body to the outer diameter D of the impeller of the crossflow fan is configured to be less than 2.2. Is preferred.
- the cross flow fan having a large outer diameter of the impeller is used for the indoor unit main body, it is possible to reduce noise and reduce power consumption during the air conditioning operation.
- FIG. 1A is a perspective view of an indoor unit in a housed state
- FIG. 2B is a perspective view of an indoor unit in a protruding state with respect to the indoor unit of the air conditioner according to the first embodiment
- 1A is a cross-sectional view of an indoor unit in a stored state
- FIG. 1B is a cross-sectional view of the indoor unit in a protruding state.
- the block diagram which shows the electric constitution of an air conditioner.
- the flowchart which shows an example of the process sequence of the movement control which the control part of an indoor unit performs.
- FIG. 5A is a cross-sectional view of the indoor unit in a stored state
- FIG. 5B is a cross-sectional view of the indoor unit in a protruding state.
- (a) is a perspective view of the indoor unit of a storage state
- (b) is a perspective view of the indoor unit of a protrusion state.
- 7A is a sectional view of the indoor unit in the housed state
- FIG. 7B is a sectional view of the indoor unit in the protruding state.
- (a) is sectional drawing of an indoor unit
- (b) is the enlarged view which expanded the blowing flow path and its periphery of (a).
- (a) is a perspective view of the indoor unit in the housed state
- (b) is a perspective view of the indoor unit in the protruding state.
- (a) is a perspective view of the indoor unit in the housed state
- (b) is a perspective view of the indoor unit in the protruding state.
- the indoor unit of the air conditioner of the modification (a) is a perspective view of the indoor unit in the housed state, and (b) is a perspective view of the indoor unit in the protruding state.
- (a) is sectional drawing of the indoor unit of a storage state
- (b) is sectional drawing of the indoor unit of a protrusion state.
- (a) is sectional drawing of the indoor unit of a storage state
- (b) is sectional drawing of the indoor unit of a protrusion state.
- (a) is a perspective view of an indoor unit
- (b) is a partial enlarged view of (a).
- the indoor unit 1 of the present embodiment is a wall-mounted type, and its rear part is attached to the indoor side wall WL.
- the indoor unit 1 can perform, for example, a cooling operation for cooling an indoor space and a heating operation for heating an indoor space.
- the indoor unit 1 includes an indoor unit body 10.
- the indoor unit body 10 is formed in a box shape in which the horizontal direction (the left-right direction of the indoor unit 1) is the longitudinal direction, and is surrounded by the top surface part 11, the front surface part 12, the rear surface part 13, the both side surface parts 14, and the bottom surface part 15. Has an internal space.
- the indoor unit 1 is installed on the side wall WL by attaching the rear surface portion 13 to a mounting plate (not shown) of the side wall WL with a screw or the like.
- a suction port 16 is provided in the top surface portion 11 of the indoor unit main body 10, and an air outlet 17 is provided in the bottom surface portion 15.
- Each of the suction port 16 and the blower port 17 is provided such that the lateral direction (left-right direction) is the longitudinal direction.
- the suction port 16 is formed along the top surface portion 11.
- the air outlet 17 is formed along the bottom surface portion 15.
- the indoor unit 1 includes an air filter 21, an indoor heat exchanger 22, a cross flow fan 23, and a flap 24.
- the air filter 21, the indoor heat exchanger 22, and the cross flow fan 23 are accommodated in the indoor unit body 10.
- the air filter 21 is detachably attached to the indoor unit body 10.
- the air filter 21 collects dust in the room air sucked from the suction port 16.
- the air filter 21 is positioned between the top surface portion 11 of the indoor unit body 10 and the indoor heat exchanger 22 when mounted on the indoor unit body 10. Thereby, the air filter 21 suppresses that dust in indoor air adheres to the surface of the indoor heat exchanger 22.
- the indoor heat exchanger 22 has a plurality of fins and a plurality of heat transfer tubes that penetrate the plurality of fins.
- the indoor heat exchanger 22 functions as an evaporator or a condenser according to the operating state of the indoor unit 1, and performs heat exchange between the refrigerant flowing in the heat transfer tube and the air passing through the indoor heat exchanger 22. Make it.
- the indoor heat exchanger 22 is provided such that both front and rear ends bend downward when viewed from the side.
- the indoor heat exchanger 22 is disposed so as to surround the cross flow fan 23 from above.
- the cross flow fan 23 is located in the approximate center inside the indoor unit body 10.
- the cross flow fan 23 includes a substantially cylindrical impeller 25 whose longitudinal direction is the longitudinal direction (left and right direction), and a fan case 27 that forms an outlet channel 26 that communicates with the outlet 17.
- the blowout flow path 26 is configured by a lower wall 26L, left and right side walls 26S, and an upper wall 26U so that the cross-sectional area increases toward the end. That is, the blowout channel 26 has a cross-sectional area that increases toward the blowout port 17. For this reason, the blowout flow path 26 has a function of a diffuser.
- the indoor air taken in from the suction port 16 passes through the indoor heat exchanger 22 and is sent to the cross flow fan 23.
- the room air sent to the cross flow fan 23 is blown into the room through the blowout passage 26 and from the blowout port 17.
- the outer diameter of the impeller 25 of the cross flow fan 23 is defined as the outer diameter D
- the vertical direction (vertical direction) size of the rear surface portion 13 of the indoor unit body 10 is defined as the height H of the indoor unit body 10.
- the outer diameter D is preferably 126 mm or more and less than 150 mm.
- the outer diameter D is more preferably 135 mm or more and less than 150 mm.
- the height H of the indoor unit main body 10 is preferably 295 mm or less.
- the height H of the indoor unit body 10 is more preferably 250 mm or more and 295 mm or less.
- the ratio (H / D) of the height H of the indoor unit body 10 to the outer diameter D is preferably less than 2.2.
- the ratio (H / D) of the height H of the indoor unit body 10 to the outer diameter D is more preferably 1.6 or more and less than 2.2.
- the flap 24 is provided to be rotatable with respect to the indoor unit body 10 at the lower edge of the outlet 17.
- the flap 24 is formed in a flat plate shape in which the horizontal direction (left-right direction) is the longitudinal direction.
- the length in the longitudinal direction of the flap 24 is substantially equal to the length in the longitudinal direction of the outlet 17.
- the flap 24 is configured to be able to rotate around the rotation axis C1 by a flap driving motor 28 (see FIG. 3).
- the indoor unit 1 of the present embodiment includes a moving mechanism 29 that moves both side walls 26S constituting the blowout flow path 26. More specifically, each of the side walls 26S includes a fixed side wall 26SF and a movable side wall 26SM.
- the fixed side wall 26SF and the movable side wall 26SM are provided so as to overlap each other in the lateral direction (left-right direction).
- the movable side wall 26SM is movable so as to slide with respect to the fixed side wall 26SF and protrude from the blowout port 17.
- the moving mechanism 29 moves the movable side wall 26SM.
- the moving mechanism 29 includes a first motor (not shown) serving as a drive source, and a rotation / straight-forward conversion mechanism (not shown) that converts the rotation of the first motor into a linear movement in a predetermined direction.
- An example of the moving mechanism 29 is a feed screw mechanism.
- the moving mechanism 29 is configured to be able to move the movable side wall 26SM so as to reduce the cross-sectional area between the left and right movable side walls 26SM in a state where the movable side wall 26SM protrudes from the blower outlet 17.
- the moving mechanism 29 includes a second motor (not shown) that rotates the movable side wall 26SM around the rotation axis C2 (see FIG. 2B).
- the moving mechanism 29 can switch between a restricted state in which the cross-sectional area between the left and right movable side walls 26SM is reduced and a normal state in which the cross-sectional area between the left and right movable side walls 26SM is not reduced.
- the distance between the left and right directions on the protruding tip side of the left and right movable side walls 26SM is smaller than the length of the outlet 17 in the left and right direction.
- the air conditioner includes an outdoor control unit 7 that controls the compressor 3, the four-way switching valve 4, the outdoor fan 5, and the expansion valve 6 of the outdoor unit 2.
- the outdoor control unit 7 controls the operating frequency (Hz) of the compressor 3, the rotation speed (rpm) of the motor of the outdoor fan 5, and the opening degree of the expansion valve 6.
- the outdoor control unit 7 switches the four-way switching valve 4 between a first state in which the refrigerant circuit (not shown) of the air conditioner is in the cooling cycle and a second state in which the heating cycle is performed.
- the indoor unit 1 includes an indoor control unit 30.
- the indoor control unit 30 includes an arithmetic processing unit that executes a predetermined control program, and a storage unit that stores various control programs and information used for various control processes.
- the arithmetic processing unit includes, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit).
- the storage unit includes, for example, a nonvolatile memory and a volatile memory.
- the non-volatile memory includes, for example, a ROM (Read Only Memory), a hard disk, and a flash memory.
- the volatile memory includes, for example, RAM (Random Access Memory).
- the indoor control unit 30 may include one or a plurality of microcomputers.
- the outdoor control unit 7 may be configured similarly.
- the indoor control unit 30 is configured to be communicable with the outdoor control unit 7 by wire or wirelessly.
- the indoor control unit 30 is configured to be able to communicate with the remote controller 31 by radio.
- the indoor control unit 30 controls the cross flow fan 23, the flap driving motor 28, and the moving mechanism 29 based on the operation instruction of the remote controller 31.
- the indoor control unit 30 communicates the content of the operation instruction of the remote controller 31 to the outdoor control unit 7.
- the outdoor control unit 7 determines the operation frequency (Hz) of the compressor 3, the rotational speed (rpm) of the motor of the outdoor fan 5, the opening degree of the expansion valve 6, and the four-way switching valve based on the operation instruction of the remote controller 31. 4 to control switching between the first state and the second state.
- the indoor control unit 30 of the present embodiment is in a storage state in which the movable side wall 26SM does not protrude from the outlet 17, and FIGS. As shown in b), the moving mechanism 29 is controlled so as to switch between the protruding state in which the movable side wall 26SM protrudes from the outlet 17.
- the indoor control unit 30 controls the moving mechanism 29 so as to be in the protruding state during the air conditioning operation, and controls the moving mechanism 29 so as to be in the stored state when the air conditioning operation is stopped.
- the movable side wall 26SM is configured to cover the entire short direction (vertical direction) of the air outlet 17 in the protruding state.
- the indoor control part 30 controls the flap drive motor 28 so that the flap 24 covers the outlet 17 as shown in FIGS.
- the flap drive motor 28 is controlled so that the flap 24 opens the air outlet 17 as shown in FIGS. 1 (b) and 2 (b).
- the indoor unit 1 in the air conditioning operation shown in FIG. 2B is in a state in which the movable side wall 26SM and the flap 24 protrude from the indoor unit body 10.
- the rotational position of the flap 24 can be arbitrarily changed.
- the rotation position of the flap 24 can be changed based on an instruction from the remote controller 31.
- the indoor control unit 30 reduces the cross-sectional area between the left and right movable side walls 26SM by the second motor that rotates the movable side wall 26SM around the rotation axis C2 (see FIG. 2B).
- the moving mechanism 29 is controlled to the restricted state.
- the indoor control unit 30 controls the moving mechanism 29 so that the second motor switches from the restricted state to the normal state.
- surging is noise (for example, noise called “basabasa”) that is generated when the air volume and pressure of the indoor air blown out from the air outlet 17 becomes unstable and a reverse flow occurs in the air outlet 17. .
- This surging is likely to occur when the air filter 21 is clogged with dust and the ventilation resistance becomes high, or when condensation occurs on the indoor heat exchanger 22.
- An example of surging detection is performed based on the rotational speed (rpm) of a fan motor (not shown) of the cross flow fan 23. More specifically, the indoor control unit 30 sets the rotation speed of the fan motor according to the operation instruction of the remote controller 31. The rotation speed of the fan motor set at this time is defined as the set rotation speed. The indoor control unit 30 determines whether or not the rotation speed of the fan motor is within an allowable rotation speed range with a predetermined width centered on the set rotation speed. When the fan motor rotation speed is within the allowable rotation speed range, the indoor control unit 30 generates a surging because the fan motor rotation speed is stable and the air volume and pressure of the indoor air are unlikely to become unstable. Judge that it is not.
- the indoor control unit 30 may generate surging because the fan motor speed is unstable and the air volume or pressure of the indoor air tends to become unstable. It is determined that In the detection of surging, the predetermined width is a width for determining that surging occurs due to variations in the rotational speed of the fan motor, and is set in advance by a test or the like.
- the detection of surging may be performed based on the current supplied to the fan motor of the cross flow fan 23. More specifically, the indoor control unit 30 determines whether or not the current supplied to the fan motor is within an allowable current range having a predetermined width centered on a current value corresponding to the set rotational speed. When the current supplied to the fan motor is within the allowable current range, the indoor control unit 30 is stable in the air volume and pressure of the indoor air, and the current supplied to the fan motor is stable. It is determined that it has not occurred. On the other hand, when the current supplied to the fan motor is outside the allowable current range, the indoor control unit 30 performs surging because the air volume and pressure of the indoor air are unstable and the current supplied to the fan motor is not stable. Is determined to have occurred.
- the predetermined width is a width for determining that surging occurs due to variations in the current supplied to the fan motor, and is set in advance by a test or the like.
- This movement control is executed in a period from the start to the end of the air conditioning operation.
- the indoor control unit 30 determines whether or not to start the air conditioning operation in step S11. In one example, the indoor control unit 30 determines that the air conditioning operation is started when the operation start instruction is received from the remote controller 31, and determines that the air conditioning operation is not started when the operation start instruction is not received.
- the indoor control part 30 complete
- step S13 When surging has occurred (step S13: YES), the indoor control unit 30 turns on the second motor of the moving mechanism 29 so that the cross-sectional area between the left and right movable side walls 26SM is reduced in step S14. Control. And the indoor control part 30 determines whether air conditioning operation is complete
- step S15: NO If the indoor control unit 30 does not end the air conditioning operation (step S15: NO), the indoor control unit 30 proceeds to step S13. On the other hand, when the air-conditioning operation is ended (step S15: YES), the indoor control unit 30 sets the movable side wall 26SM to the stored state in step S16. As a result, the movable side wall 26SM is housed in the indoor unit body 10.
- step S13 the indoor control unit 30 determines whether or not the movable side wall 26SM is in a restricted state in step S17.
- the indoor control unit 30 changes the movable side wall 26SM to the normal state in step S18, and proceeds to step S15.
- the indoor control unit 30 proceeds to step S15 while maintaining the movable side wall 26SM in the normal state.
- the operation of this embodiment will be described. While the outer diameter D of the impeller 25 of the cross flow fan 23 is increased for low power and low noise, the height H of the indoor unit body 10 is increased in order to suppress a decrease in ease of installation of the indoor unit body 10. If not, the area in the indoor unit body 10 where the blowout flow path 26 of the cross flow fan 23 is formed becomes smaller, and the blowout flow path 26 becomes shorter. When the blowout flow path 26 becomes short, the conversion from the dynamic pressure of the room air to the static pressure is not sufficient in the blowout flow path 26, and the air volume and pressure of the cross flow fan 23 are reduced.
- the wind speed of the indoor air in the blowout flow path 26 decreases and a backflow occurs from the blowout port 17. It becomes easy. As a result, surging in which the airflow of the indoor air blown out from the crossflow fan 23 becomes unstable due to the reverse flow of the indoor air from the blowout port 17 may occur. In particular, it is known that the wind speed of the indoor air is slower at the left and right end portions of the air outlet 17 than at the center portion of the air outlet 17 in the left and right direction. For this reason, the backflow from the blower outlet 17 is more likely to occur at both ends of the blower outlet 17 in the left-right direction.
- the movable side wall 26SM is protruded from the outlet 17 during the air conditioning operation.
- the blowing flow path 26 can be extended by the length of the movable side wall 26SM.
- the movable side wall 26SM extends so as to protrude from the blower outlet 17 at both ends in the left-right direction of the blower outlet 17, the indoor air flows back to the blower outlet 17 from outside the both ends in the left-right direction of the blower outlet 17. Is suppressed.
- surging can be suppressed and fluctuations in the air volume and pressure of the cross flow fan 23 can be suppressed.
- the movable side walls 26SM of the side walls 26S are provided so as to protrude from the air outlet 17 at least during the air conditioning operation. According to this structure, since the indoor air blown from the blower outlet 17 is restricted by the movable side wall 26SM from flowing in the left-right direction of the blower outlet 17, the blowout flow path 26 can be extended from the blower outlet 17. Thereby, since the static pressure of the blowing flow path 26 can be raised, the air volume in the blowing flow path 26 can be increased.
- the ventilation resistance (internal pressure loss) inside the indoor unit body 10 increases due to, for example, condensation in the indoor heat exchanger 22 or clogging of the air filter 21, the backflow of room air from both ends of the air outlet 17 is reduced. Since it can be suppressed, surging hardly occurs.
- the moving mechanism 29 makes the distance between the pair of movable side walls 26SM smaller than the length of the air outlet 17 in the left-right direction. According to this configuration, since the cross-sectional area downstream of the blowout port 17 in the blowout flow channel 26 is reduced, the wind speed of the indoor air downstream of the blowout port 17 in the blowout flow channel 26 can be increased. Therefore, since the backflow of the room air from the blower outlet 17 can be suppressed, surging can be suppressed.
- the indoor unit 1 has a moving mechanism in which the movable side wall 26SM is protruded from the outlet 17 during the air conditioning operation and is in a stowed state in which the movable side wall 26SM is not protruded from the outlet 17 during the air conditioning operation stop. 29.
- the movable side wall 26SM protrudes from the indoor unit body 10 during the air conditioning operation, surging is less likely to occur, and the movable side wall 26SM is stored in the indoor unit body 10 while the air conditioning operation is stopped.
- the aesthetics of the indoor unit 1 are improved.
- the indoor unit 1 is configured such that the ratio (H / D) of the height H of the indoor unit body 10 to the outer diameter D of the impeller 25 of the crossflow fan 23 is less than 2.2. Yes. According to this configuration, since the cross-flow fan 23 having a large outer diameter D of the impeller 25 is used for the indoor unit body 10, noise during operation of the indoor unit 1 and power consumption can be reduced. .
- the ratio (H / D) of the height H of the indoor unit body 10 to the outer diameter D of the impeller 25 of the crossflow fan 23 is 1.6 or more and less than 2.2. It is configured as follows. According to this configuration, in addition to the effect (1-4) described above, it is possible to suppress a decrease in ease of setting the indoor unit body 10.
- the height H of the indoor unit body 10 is 295 mm or less. Thereby, the fall of the installation ease of the indoor unit main body 10 can be suppressed.
- the height H of the indoor unit body 10 is 250 mm or more and 295 mm or less. Thereby, the cross flow fan 23 with the large outer diameter D of the impeller 25 can be used, and low power and low noise can be realized, and a decrease in ease of setting of the indoor unit body 10 can be suppressed.
- the indoor unit 1 of the air conditioner of 2nd Embodiment is demonstrated.
- the indoor unit 1 according to the present embodiment is different from the indoor unit 1 according to the first embodiment in that the lower wall 26L together with the side walls 26S of the blowout flow path 26 protrudes from the blowout port 17 during the air conditioning operation.
- the same reference numerals are given to components common to the indoor unit 1 of the first embodiment, and the description thereof may be omitted.
- the lower wall 26L includes a fixed lower wall 26LF and a movable lower wall 26LM.
- a flap 24 is attached to the tip of the movable lower wall 26LM so as to be rotatable with respect to the movable lower wall 26LM.
- the fixed lower wall 26LF and the movable lower wall 26LM are provided so as to overlap each other in the vertical direction (vertical direction).
- the movable lower wall 26LM is movable so as to slide with respect to the fixed lower wall 26LF and protrude from the outlet 17.
- the moving mechanism 29 of the present embodiment is configured to move the movable side wall 26SM and the movable lower wall 26LM, respectively.
- the moving mechanism 29 has a function of sliding and moving the movable side wall 26SM with respect to the fixed side wall 26SF and a function of sliding and moving the movable lower wall 26LM with respect to the fixed lower wall 26LF.
- the moving mechanism 29 includes a first motor, a first rotation / straight-line conversion mechanism that converts rotation of the first motor into linear movement of the movable side wall 26SM, and a first motor that converts rotation of the first motor into linear movement of the movable lower wall 26LM.
- a two-rotation linear conversion mechanism That is, the moving mechanism 29 of the present embodiment moves the movable side wall 26SM and the movable lower wall 26LM with one drive source.
- the indoor control unit 30 (see FIG. 3) of the present embodiment is in a storage state in which the movable side wall 26SM and the movable lower wall 26LM do not protrude from the outlet 17 as shown in FIGS. 5 (a) and 6 (a). Then, as shown in FIGS. 5B and 6B, the moving mechanism 29 is controlled so as to switch between the protruding state in which the movable side wall 26SM and the movable lower wall 26LM protrude from the outlet 17 respectively.
- the indoor control unit 30 controls the moving mechanism 29 so as to be in the protruding state during the air conditioning operation, and controls the moving mechanism 29 so as to be in the stored state when the air conditioning operation is stopped.
- the movable side wall 26SM is located on the left and right ends of the movable lower wall 26LM in the protruding state.
- the movable side wall 26SM is provided such that no gap is formed between the movable side wall 26SM and the movable lower wall 26LM in the vertical direction. Further, the movable side wall 26SM is rotatable around the rotation axis C2 between the upper wall 26U and the movable lower wall 26LM.
- the relationship between the outer diameter D of the impeller 25 of the crossflow fan 23 and the height H of the indoor unit body 10 of the present embodiment is the same as the outer diameter D of the impeller 25 of the crossflow fan 23 of the first embodiment and the room. This is the same as the relationship of the height H of the machine body 10.
- the movable side wall 26SM of the both side walls 26S and the movable lower wall 26LM of the lower wall 26L are provided so as to protrude from the air outlet 17 at least during the air conditioning operation. According to this configuration, the indoor air blown from the blowout port 17 is restricted from flowing in the left and right directions and downward from the blowout port 17 by the movable side wall 26SM and the movable lower wall 26LM.
- the blowout flow channel 26 having the function of the diffuser becomes longer, so that the static pressure of the blowout flow channel 26 can be further increased. It is possible to increase the air volume in the blowout flow path 26. Further, when the ventilation resistance (in-machine pressure loss) of the indoor unit main body 10 is increased, the backflow of the indoor air from both the left and right ends of the air outlet 17 and from the lower side can be suppressed, so surging is less likely to occur.
- the indoor unit 1 is in a projecting state in which the movable side wall 26SM and the movable lower wall 26LM are projected from the outlet 17 during the air conditioning operation, and the movable side wall 26SM and the movable lower wall 26LM are respectively disposed during the air conditioning operation stop.
- a moving mechanism 29 is provided in a storage state that does not protrude from the air outlet 17. According to this configuration, the movable side wall 26SM and the movable lower wall 26LM protrude from the indoor unit body 10 during the air conditioning operation, so that surging is less likely to occur.
- Each of the 26LMs is housed in the indoor unit body 10, so that the beauty of the indoor unit 1 is improved.
- the indoor unit 1 of the air conditioner of 3rd Embodiment is demonstrated.
- the indoor unit 1 of the present embodiment causes the upper wall 26U together with the side walls 26S and the lower wall 26L of the outlet channel 26 to protrude from the outlet 17 during the air conditioning operation. Is different.
- the same reference numerals are assigned to components common to the indoor unit 1 of the second embodiment, and the description thereof may be omitted.
- the upper wall 26U of the present embodiment includes a fixed upper wall 26UF and a movable upper wall 26UM.
- the fixed upper wall 26UF and the movable upper wall 26UM are provided so as to overlap each other in the vertical direction (vertical direction).
- the movable upper wall 26UM is movable so as to slide with respect to the fixed upper wall 26UF and protrude from the outlet 17.
- the moving mechanism 29 is configured to move the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM, respectively.
- the moving mechanism 29 has a function of sliding and moving the movable side wall 26SM with respect to the fixed side wall 26SF, a function of sliding and moving the movable lower wall 26LM with respect to the fixed lower wall 26LF, and a movable upper wall 26UM.
- the moving mechanism 29 includes a first motor, a first rotation / straight-line conversion mechanism that converts rotation of the first motor into linear movement of the movable side wall 26SM, and a first motor that converts rotation of the first motor into linear movement of the movable lower wall 26LM.
- a two-rotation linear conversion mechanism and a third rotation / linear conversion mechanism that converts the rotation of the first motor into the linear movement of the movable upper wall 26UM. That is, the moving mechanism 29 of the present embodiment moves the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM, respectively, with one drive source.
- the indoor control unit 30 (see FIG. 3) of the present embodiment includes a movable side wall 26SM, a movable lower wall 26LM, and a movable upper wall 26UM, respectively. 7B and FIG. 8B, the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM are each projected from the outlet 17 as shown in FIGS.
- the moving mechanism 29 is controlled to be switched.
- the indoor control unit 30 controls the moving mechanism 29 so as to be in the protruding state during the air conditioning operation, and controls the moving mechanism 29 so as to be in the stored state when the air conditioning operation is stopped.
- the movable side wall 26SM covers the entire vertical direction (vertical direction) of the movable lower wall 26LM and the movable upper wall 26UM. It is configured. Specifically, the movable side wall 26SM is positioned between the movable lower wall 26LM and the movable upper wall 26UM in the vertical direction at the left and right ends of the movable lower wall 26LM and the movable upper wall 26UM in the protruding state. The movable side wall 26SM is provided such that no gap is formed between the movable side wall 26SM and the movable lower wall 26LM in the vertical direction. Further, the movable side wall 26SM is rotatable around the rotation axis C2 between the movable upper wall 26UM and the movable lower wall 26LM.
- the relationship between the outer diameter D of the impeller 25 of the crossflow fan 23 and the height H of the indoor unit body 10 of the present embodiment is the same as the outer diameter D of the impeller 25 of the crossflow fan 23 of the first embodiment and the room. This is the same as the relationship of the height H of the machine body 10.
- the movable side wall 26SM of the both side walls 26S, the movable lower wall 26LM of the lower wall 26L, and the movable upper wall 26UM of the upper wall 26U are provided so as to protrude from the air outlet 17 at least during air conditioning operation. Yes.
- the blowout flow path 26 surrounded by the wall portion in the left-right direction and the vertical direction can be extended from the blowout port 17.
- the blowout flow channel 26 having the function of a diffuser becomes longer.
- the indoor unit 1 is in a protruding state in which the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM protrude from the outlet 17 during the air conditioning operation, and the movable side wall 26SM is stopped during the air conditioning operation stop.
- the movable lower wall 26LM and the movable upper wall 26UM are each provided with a moving mechanism 29 that is in a storage state in which the movable lower wall 26LM does not protrude from the air outlet 17. According to this configuration, during the air-conditioning operation, the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM protrude from the indoor unit main body 10, so that surging is less likely to occur.
- the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM are each housed in the indoor unit body 10 while the air conditioning operation is stopped, so that the aesthetics of the indoor unit 1 are improved.
- the indoor unit 1 of the air conditioner of 4th Embodiment is demonstrated.
- the indoor unit 1 of this embodiment differs in the structure of the crossflow fan 23 compared with the indoor unit 1 of 1st Embodiment.
- the same reference numerals are given to components common to the indoor unit 1 of the first embodiment, and the description thereof may be omitted.
- the indoor unit 1 includes a support portion 32 that supports the flap 24 so as to be rotatable about the rotation axis C1 as a configuration of the cross flow fan 23.
- the support part 32 is attached to the lower end part of the indoor unit body 10 in the vicinity of the air outlet 17. That is, it can be said that the support portion 32 constitutes the lower end portion of the indoor unit body 10.
- a portion of the support portion 32 on the outlet 17 side constitutes a part of the outlet passage 26 (lower wall 26L).
- the support portion 32 faces the tongue portion 26 ⁇ / b> A on the upper wall 26 ⁇ / b> U in the direction crossing the blowout flow path 26.
- the ratio (L / D) of the distance L to the outer diameter D is less than 0.05.
- the point B is the most downstream portion of the lower wall 26 ⁇ / b> L of the blowing channel 26.
- the point B is the lowest point of the flow path forming surface 32 ⁇ / b> X of the support portion 32.
- the moving mechanism 29 includes a flap drive motor 28 (see FIG. 3).
- the moving mechanism 29 is configured to be changeable between a storage state in which the flap 24 constituting the blowout flow path 26 covers the blowout port 17 and a protruding state in which the flap 24 projects from the blowout port 17. Similar to the first embodiment, the moving mechanism 29 is in a protruding state during the air conditioning operation, and is in a retracted state when the air conditioning operation is stopped. That is, as shown by the broken line in FIG. 9A, the flap 24 rotates with respect to the support portion 32 so as to cover the air outlet 17 while the air conditioning operation is stopped. On the other hand, the flap 24 rotates with respect to the support portion 32 so as to open the air outlet 17 during the air conditioning operation, as indicated by the solid line in FIG.
- the protruding flap 24 faces the flow path forming surface 26X on the upper wall 26U.
- the flap 24 constituting the lower wall of the blowout flow path 26 is configured to protrude from the blowout port 17 at least during the air conditioning operation. Further, the ratio of the distance L from the tangent line VL inscribed in the tongue portion 26A of the crossflow fan 23 to the outer diameter D of the impeller 25 of the crossflow fan 23 to the point B constituting the lower end of the indoor unit body 10 (L / D ) Is less than 0.05. According to this configuration, it is possible to achieve low power and low noise by suppressing the decrease in the ease of installation of the indoor unit body 10 and increasing the outer diameter D of the impeller 25 of the crossflow fan 23.
- the indoor unit 1 is provided with a moving mechanism 29 in which the flap 24 is protruded from the outlet 17 during the air conditioning operation, and in the retracted state in which the flap 24 is not protruded from the outlet 17 during the air conditioning operation stop. Prepare. According to this configuration, surging is unlikely to occur when the flap 24 protrudes from the indoor unit body 10 during the air conditioning operation. Further, the aesthetic appearance of the indoor unit 1 is improved by storing the flap 24 in the indoor unit body 10 while the air conditioning operation is stopped.
- each said embodiment is an illustration of the form which the indoor unit of the air conditioner according to this indication can take, and it does not intend restrict
- the indoor unit of an air conditioner according to the present disclosure may take a form in which, for example, the modifications of the above-described embodiments described below and at least two modifications not inconsistent with each other are combined.
- the same reference numerals as those in the above embodiments are assigned to portions common to those in the above embodiments, and the description thereof is omitted.
- the indoor unit 1 may have any of the following configurations (A1) to (A4).
- both side walls 26S constituting the blowout flow path 26 have a movable side wall 26SM, an upper wall 26U has a movable upper wall 26UM, and a lower wall 26L has a movable lower wall 26LM.
- the movable side wall 26SM and the movable upper wall 26UM protrude from the blower outlet 17, so that the indoor air blown from the blower outlet 17 is laterally moved from the blower outlet 17 by the movable sidewall 26SM and the movable upper wall 26UM. Further, since the upward flow is restricted, the blowout flow path 26 can be extended from the blowout port 17.
- the blowout flow channel 26 having the function of the diffuser becomes longer, so that the static pressure of the blowout flow channel 26 can be further increased. It is possible to increase the air volume in the blowout flow path 26. Further, when the ventilation resistance (internal pressure loss) of the indoor unit main body 10 is increased, the backflow of air from both the left and right ends of the blower outlet 17 and from the upper side can be suppressed, so that surging is less likely to occur.
- the lower wall 26L constituting the blowout flow path 26 has a movable lower wall 26LM
- the upper wall 26U has a movable upper wall 26UM
- both side walls 26S have a movable side wall 26SM.
- the outlet channel 26 can be extended from the outlet 17.
- the blowing flow path 26 which has a function of a diffuser becomes long, the static pressure of the blowing flow path 26 can be raised more, and a blowing flow The air volume in the path 26 can be further increased. Further, when the ventilation resistance (internal pressure loss) of the indoor unit main body 10 becomes high, the backflow of air from below the blower outlet 17 can be suppressed, so surging is less likely to occur.
- the lower wall 26L constituting the blowout flow path 26 has the movable lower wall 26LM, the side walls 26S do not have the movable side wall 26SM, and the upper wall 26U has the movable upper wall 26UM. It has a configuration that it does not have. According to this configuration, since the movable lower wall 26LM protrudes from the blowout port 17, the indoor air blown from the blowout port 17 is restricted from flowing downward from the blowout port 17 by the movable lower wall 26LM.
- the outlet channel 26 can be extended from the outlet 17.
- the blowing flow path 26 which has a function of a diffuser becomes long, the static pressure of the blowing flow path 26 can be raised more, and a blowing flow The air volume in the path 26 can be further increased. Further, when the ventilation resistance (internal pressure loss) of the indoor unit main body 10 becomes high, the backflow of air from below the blower outlet 17 can be suppressed, so surging is less likely to occur.
- the upper wall 26U constituting the blowout flow path 26 has the movable upper wall 26UM, the side walls 26S do not have the movable side wall 26SM, and the lower wall 26L has the movable lower wall 26LM. It has a configuration that it does not have. According to this configuration, since the movable upper wall 26UM protrudes from the blowout port 17, the indoor air blown from the blowout port 17 is restricted from flowing upward from the blowout port 17 by the movable upper wall 26UM.
- the outlet channel 26 can be extended from the outlet 17.
- the side walls 26S may be modified as in the following configurations (B1) to (B3).
- B1 As shown in FIGS. 10A and 10B, the side walls 26S have movable side walls 26SM having a fan-like shape centering on the rotation axis C3.
- the moving mechanism 29 has a drive motor that rotates the movable side wall 26SM around the rotation axis C3.
- the output shaft of the drive motor may be directly connected to the movable side wall 26SM, or may be connected to the movable side wall 26SM via a reduction gear.
- the moving mechanism 29 moves the movable side wall 26SM so as to switch between the storage state shown in FIG. 10A and the protruding state shown in FIG. As shown in FIG.
- the movable side wall 26SM in the housed state, the movable side wall 26SM is housed in the indoor unit body 10, that is, in a state where it does not protrude from the air outlet 17.
- the movable side wall 26SM in the protruding state, is in a state of protruding from the indoor unit body 10, that is, in a state of protruding from the air outlet 17.
- 10A and 10B is provided so as to be adjacent to the end surface of the flap 24 in the lateral direction (left-right direction).
- the side walls 26S have movable side walls 26SM that rotate about the rotation axis C4.
- the moving mechanism 29 has a drive motor that rotates the movable side wall 26SM around the rotation axis C4.
- the output shaft of the drive motor may be directly connected to the movable side wall 26SM, or may be connected to the movable side wall 26SM via a reduction gear.
- the moving mechanism 29 moves the movable side wall 26SM so as to switch between the storage state shown in FIG. 11A and the protruding state shown in FIG.
- movable side wall 26SM in the accommodation state, is the state which covers the edge part of the horizontal direction (left-right direction) of the blower outlet 17, ie, the state which does not protrude from the blower outlet 17.
- the flap 24 is moved so as to cover the outlet 17 by the flap driving motor 28 (see FIG. 3).
- the movable side wall 26SM rotates so as to cover the end portion of the flap 24 in the lateral direction (left-right direction).
- FIG. 11B in the protruding state, the movable side wall 26SM is in a state of protruding from the indoor unit body 10, that is, in a state of protruding from the air outlet 17.
- the movable side wall 26SM rotates and rotates so that the flap 24 protrudes from the outlet 17 after moving to the outside in the lateral direction (left and right direction) from the flap 24. To do.
- the side walls 26S have telescopic movable side walls 26SM.
- the movable side wall 26SM has a bellows structure.
- the moving mechanism 29 includes a motor serving as a drive source and a rotation / straight-ahead conversion mechanism that converts the rotation of the motor into a rectilinear movement in the expansion / contraction direction of the movable side wall 26SM.
- the moving mechanism 29 moves the movable side wall 26SM so as to switch between the storage state shown in FIG. 12A and the protruding state shown in FIG. As shown in FIG.
- the movable side wall 26SM in the housed state, is housed in the indoor unit body 10 by contracting, that is, not protruding from the outlet 17.
- the protruding state is a state of protruding from the indoor unit body 10 by extending, that is, a state of protruding from the outlet 17.
- the movable side wall 26SM of FIGS. 12A and 12B is provided so as to be adjacent to the flap 24 in the lateral direction (left-right direction).
- the movable side wall 26SM may be configured not to rotate around the rotation axis C2. In this case, the movable side wall 26SM may be configured such that the distance between the left and right directions of both the movable side walls 26SM becomes smaller toward the downstream side of the blowout flow path 26.
- the movable lower wall 26LM of the lower wall 26L is, as shown in FIGS. 13A and 13B, the distal end portion of the fixed lower wall 26LF that is the lower end portion of the indoor unit body 10. However, it may be provided so as to be rotatable around the rotation axis C5.
- the flap 24 is provided so as to be rotatable with respect to the distal end portion of the movable lower wall 26LM.
- the moving mechanism 29 rotates the movable lower wall 26 ⁇ / b> LM so as to cover the air outlet 17 in the housed state while the air conditioning operation is stopped. In this case, the air outlet 17 is covered by the movable lower wall 26LM and the flap 24. As illustrated in FIG.
- the moving mechanism 29 rotates the movable lower wall 26 ⁇ / b> LM so as to protrude from the air outlet 17 as a protruding state during the air conditioning operation.
- the air outlet 17 is not covered by the movable lower wall 26LM and the flap 24.
- the flap 24 can arbitrarily change the rotation position with respect to the movable lower wall 26LM by the flap driving motor 28 (see FIG. 3).
- the movable upper wall 26UM of the upper wall 26U is provided so as to be rotatable around the rotation axis C6 with respect to the distal end portion of the fixed upper wall 26UF as shown in FIGS. 14 (a) and 14 (b). May be.
- the moving mechanism 29 rotates the movable upper wall 26 ⁇ / b> UM so as to cover the air outlet 17 in the housed state while the air conditioning operation is stopped.
- the flap 24 also covers the outlet 17 by the flap driving motor 28 (see FIG. 3).
- the blower outlet 17 is entirely covered by the movable upper wall 26UM and the flap 24.
- the moving mechanism 29 rotates the movable upper wall 26 ⁇ / b> UM so as to protrude from the air outlet 17 as a protruding state during the air conditioning operation.
- the air outlet 17 is not covered by the movable upper wall 26UM and the flap 24.
- the moving mechanism 29 may include a first moving mechanism that moves the movable side wall 26SM and a second moving mechanism that moves the movable lower wall 26LM.
- Each of the first moving mechanism and the second moving mechanism includes a motor and a rotation / straight-line conversion mechanism that converts rotation of the motor into straight movement.
- the moving mechanism 29 may reduce the cross-sectional area downstream of the air outlet 17 in the outlet channel 26 by rotating the flap 24 when surging occurs. Good.
- the moving mechanism 29 includes a first moving mechanism that moves the movable side wall 26SM, a second moving mechanism that moves the movable lower wall 26LM, and a third moving mechanism that moves the movable upper wall 26UM.
- Each of the first to third moving mechanisms includes a motor and a rotation / straight-line conversion mechanism that converts rotation of the motor into linear movement. Accordingly, the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM can be individually controlled.
- the moving mechanism 29 may include a first moving mechanism that moves the movable side wall 26SM and the movable lower wall 26LM, and a second moving mechanism that moves the movable upper wall 26UM.
- Each of the first moving mechanism and the second moving mechanism includes a motor and a rotation / straight-line conversion mechanism that converts rotation of the motor into straight movement.
- the moving mechanism 29 may include a first moving mechanism that moves the movable side wall 26SM and a second moving mechanism that moves the movable lower wall 26LM and the movable upper wall 26UM.
- Each of the first moving mechanism and the second moving mechanism includes a motor and a rotation / straight-line conversion mechanism that converts rotation of the motor into straight movement. Accordingly, the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM can be individually controlled.
- the moving mechanism 29 may include a first moving mechanism that moves the movable side wall 26SM and the movable upper wall 26UM, and a second moving mechanism that moves the movable lower wall 26LM.
- Each of the first moving mechanism and the second moving mechanism includes a motor and a rotation / straight-line conversion mechanism that converts rotation of the motor into straight movement.
- the outlet channel 26 protrudes from the outlet 17 and is formed so that the sectional area of the outlet channel 26 on the downstream side of the outlet 17 is smaller than the sectional area of the outlet 17.
- the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM, which are constituent elements of the blowout flow path 26 are movable so that the cross-sectional area surrounded by the blower outlet 17 is smaller than the cross-sectional area.
- At least one of the side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM is moved by the moving mechanism 29. Thereby, the wind speed in the downstream of the blowing flow path 26 can be made high. Therefore, since the backflow of the room air from the blower outlet 17 can be suppressed, surging is less likely to occur.
- the indoor unit 1 may be changed as in the following (C1) to (C4).
- the indoor unit 1 further includes a movable side wall 26SM and a moving mechanism 29 that moves the movable side wall 26SM.
- the movable side wall 26SM and the moving mechanism 29 have the same configuration as the movable side wall 26SM and the moving mechanism 29 of the first embodiment. According to this configuration, the movable side wall 26SM protrudes from the blowout port 17 so that indoor air blown from the blowout port 17 is restricted from flowing in the left-right direction from the blowout port 17 by the movable side wall 26SM and the movable upper wall 26UM. Therefore, the blowout channel 26 can be extended from the blowout port 17.
- the blowout flow channel 26 becomes longer, so that the static pressure of the blowout flow channel 26 can be further increased.
- the air volume at 26 can be further increased. Further, when the ventilation resistance (internal pressure loss) of the indoor unit main body 10 is increased, the backflow of air from both ends of the air outlet 17 in the left-right direction can be suppressed, so surging is less likely to occur.
- the indoor unit 1 further includes a movable lower wall 26LM and a moving mechanism 29 that moves the movable lower wall 26LM.
- the movable lower wall 26LM and the moving mechanism 29 have the same configuration as the movable lower wall 26LM and the moving mechanism 29 of the second embodiment.
- the flap 24 is rotatably provided at the tip of the movable lower wall 26LM. According to this configuration, since the movable lower wall 26LM protrudes from the blowout port 17, the indoor air blown from the blowout port 17 is restricted from flowing downward from the blowout port 17 by the movable lower wall 26LM.
- the outlet channel 26 can be extended from the outlet 17.
- the blowing flow path 26 which has a function of a diffuser becomes long, the static pressure of the blowing flow path 26 can be raised more, and a blowing flow The air volume in the path 26 can be further increased. Further, when the ventilation resistance (internal pressure loss) of the indoor unit main body 10 becomes high, the backflow of air from below the blower outlet 17 can be suppressed, so surging is less likely to occur.
- the indoor unit 1 further includes a movable upper wall 26UM and a moving mechanism 29 that moves the movable upper wall 26UM.
- the movable upper wall 26UM and the moving mechanism 29 have the same configuration as the movable upper wall 26UM and the moving mechanism 29 of the third embodiment. According to this configuration, since the movable upper wall 26UM protrudes from the blowout port 17, the indoor air blown from the blowout port 17 is restricted from flowing upward from the blowout port 17 by the movable upper wall 26UM.
- the outlet channel 26 can be extended from the outlet 17.
- the indoor unit 1 moves at least one of the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM, and at least one of the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM. 29 is further provided. According to this configuration, at least one of the effects (C1) to (C3) is obtained.
- the moving mechanism 29 may be omitted.
- the component which comprises the blowing flow path 26 is always a protrusion state. That is, at least one of the side walls 26 ⁇ / b> S, the upper wall 26 ⁇ / b> U, and the lower wall 26 ⁇ / b> L is provided so as to protrude from the air outlet 17.
- the side walls 26 ⁇ / b> S, the upper wall 26 ⁇ / b> U, and the lower wall 26 ⁇ / b> L that are constituent elements of the blowout flow path 26 protrude from the blowout port 17. Is provided.
- the protruding portion 26P in which the distance between the left and right side walls 26S on the downstream side of the outlet 17 in the outlet channel 26 is smaller than the length in the left and right direction of the outlet 17 is provided on the side walls 26S. You may provide in the part of the downstream rather than the blower outlet 17.
- FIG. 15A and 15B the protrusion 26P has a distance between the left and right sides of the side walls 26S from the upper wall 26U to the lower wall 26L (between the left and right directions of the protrusion 26P). It is formed in a substantially triangular pyramid with a small (distance).
- the surface 26PA where the projecting portions 26P face each other in the left-right direction is formed such that the distance between the left and right directions of the projecting portions 26P becomes smaller toward the downstream side of the blowout flow path 26.
- the shape of the protrusion 26 ⁇ / b> P is formed so that the distance between the left and right sides of the side walls 26 ⁇ / b> S on the downstream side of the outlet 17 in the outlet channel 26 is smaller than the length in the left and right direction of the outlet 17. Can be arbitrarily changed.
- the distance between the left and right sides of the both side walls 26S on the downstream side of the blowing channel 26 extended so that the both side walls 26S protrude from the blowing port 17 is the blowing channel 26. It may be provided so as to be always smaller than the distance between the left and right sides of the both side walls 26S on the outlet 17 side (upstream side). Thereby, the wind speed in the downstream of the blowing flow path 26 can be made high. Therefore, since the backflow of the room air from the blower outlet 17 can be suppressed, surging is less likely to occur.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
This indoor unit of an air conditioner comprises: an indoor unit body having an intake opening and a discharge opening; a heat exchanger that exchanges heat with air taken in from the intake opening; and a crossflow fan that is configured so as to discharge, from the discharge opening, air subjected to heat exchange by the heat exchanger. The crossflow fan has formed therein a discharge flow path that guides discharge air to the discharge opening, the discharge flow path being constituted by a lower wall, left and right side walls, and an upper wall such that the cross-sectional area thereof increases in a fan shape. The side walls are provided so as to protrude from the discharge opening at least during air conditioning operation.
Description
本開示は、空気調和機の室内機に関する。
This disclosure relates to an indoor unit of an air conditioner.
例えば特許文献1には、空気調和機の室内機のフラップにおける長手方向の両端部に、フラップのガイド面から立ち上がる壁部が設けられた構造が開示されている。
For example, Patent Document 1 discloses a structure in which walls that rise from the guide surface of the flap are provided at both ends in the longitudinal direction of the flap of the indoor unit of the air conditioner.
特許文献1の室内機では、吹出口から吹出空気を室内機の下方に向けるようなフラップの位置において、フラップの側壁と吹出口との間の隙間が大きくなる。これにより、側壁と吹出口との間の隙間から吹出空気が逆流することに起因してサージングが発生してしまう。
In the indoor unit of Patent Document 1, the gap between the side wall of the flap and the outlet becomes large at the position of the flap that directs the air blown from the outlet toward the lower side of the indoor unit. As a result, surging occurs due to the backflow of the blown air from the gap between the side wall and the blower outlet.
本開示の目的は、サージングが発生し難い空気調和機の室内機を提供することである。
An object of the present disclosure is to provide an indoor unit of an air conditioner that is unlikely to generate surging.
この課題を解決する空気調和機の室内機は、吸込口及び吹出口を有する室内機本体と、前記吸込口から吸い込まれた空気を熱交換する熱交換器と、前記熱交換器によって熱交換された空気を前記吹出口から吹き出すように構成されたクロスフローファンと、を備え、前記クロスフローファンには、下壁、左右の両側壁、及び上壁により断面積が末広がりに大きくなるように構成された、吹出空気を前記吹出口に案内する吹出流路が形成され、前記両側壁は、少なくとも空調運転中に前記吹出口から突出するように設けられている。
An indoor unit of an air conditioner that solves this problem is an indoor unit body having an inlet and an outlet, a heat exchanger that exchanges heat between air sucked from the inlet, and heat exchange by the heat exchanger. A cross flow fan configured to blow out the air from the air outlet, and the cross flow fan is configured such that the cross-sectional area is widened by the lower wall, the left and right side walls, and the upper wall. The blowout flow path for guiding the blown air to the blowout port is formed, and the both side walls are provided so as to protrude from the blowout port at least during the air conditioning operation.
この構成によれば、吹出口から吹き出される空気が側壁によって吹出口の左右方向に流れることが規制されるため、吹出流路を吹出口から延長することができる。これにより、吹出流路の静圧を上昇させることができるため、吹出流路における風量を増加させることができる。また室内機本体の通風抵抗(機内圧損)が高くなる場合に、吹出口の左右方向の両端部からの空気の逆流を抑制できるため、サージングが発生し難くなる。
According to this configuration, the air blown out from the outlet is restricted from flowing in the left-right direction of the outlet by the side wall, so that the outlet passage can be extended from the outlet. Thereby, since the static pressure of a blowing flow path can be raised, the air volume in a blowing flow path can be increased. Further, when the ventilation resistance (internal pressure loss) of the indoor unit main body is increased, the backflow of air from both ends in the left-right direction of the air outlet can be suppressed, so that surging hardly occurs.
上記空気調和機の室内機において、前記下壁は、少なくとも空調運転中に前記吹出口から突出するように設けられていることが好ましい。
この構成によれば、両側壁とともに下壁が吹出口から突出することにより、吹出口から吹き出される空気が両側壁及び下壁によって吹出口から左右方向及び下方に流れることが規制されるため、吹出流路を吹出口から延長することができる。これにより、両側壁及び下壁が吹出口から突出しない構成と比較して、ディフューザの機能を有する吹出流路が長くなるため、吹出流路の静圧をより上昇させることができ、吹出流路における風量をより増加させることができる。また室内機本体の通風抵抗(機内圧損)が高くなる場合に、吹出口の左右方向の両端部及び下方からの空気の逆流をそれぞれ抑制できるため、サージングがより発生し難くなる。 In the indoor unit of the air conditioner, it is preferable that the lower wall is provided so as to protrude from the air outlet at least during an air conditioning operation.
According to this configuration, since the lower wall protrudes from the air outlet with the both side walls, the air blown out from the air outlet is restricted from flowing in the left and right directions and downward from the air outlet by the both side walls and the lower wall. The blowing channel can be extended from the blowing port. Thereby, since the blowing flow path which has a function of a diffuser becomes long compared with the structure where both side walls and the lower wall do not protrude from the blowing outlet, the static pressure of the blowing flow path can be further increased. The air volume at can be increased. Further, when the ventilation resistance (internal pressure loss) of the indoor unit main body is increased, the backflow of air from both the left and right ends of the air outlet and from the lower side can be suppressed, so that surging is less likely to occur.
この構成によれば、両側壁とともに下壁が吹出口から突出することにより、吹出口から吹き出される空気が両側壁及び下壁によって吹出口から左右方向及び下方に流れることが規制されるため、吹出流路を吹出口から延長することができる。これにより、両側壁及び下壁が吹出口から突出しない構成と比較して、ディフューザの機能を有する吹出流路が長くなるため、吹出流路の静圧をより上昇させることができ、吹出流路における風量をより増加させることができる。また室内機本体の通風抵抗(機内圧損)が高くなる場合に、吹出口の左右方向の両端部及び下方からの空気の逆流をそれぞれ抑制できるため、サージングがより発生し難くなる。 In the indoor unit of the air conditioner, it is preferable that the lower wall is provided so as to protrude from the air outlet at least during an air conditioning operation.
According to this configuration, since the lower wall protrudes from the air outlet with the both side walls, the air blown out from the air outlet is restricted from flowing in the left and right directions and downward from the air outlet by the both side walls and the lower wall. The blowing channel can be extended from the blowing port. Thereby, since the blowing flow path which has a function of a diffuser becomes long compared with the structure where both side walls and the lower wall do not protrude from the blowing outlet, the static pressure of the blowing flow path can be further increased. The air volume at can be increased. Further, when the ventilation resistance (internal pressure loss) of the indoor unit main body is increased, the backflow of air from both the left and right ends of the air outlet and from the lower side can be suppressed, so that surging is less likely to occur.
上記空気調和機の室内機において、前記上壁は、少なくとも空調運転中に前記吹出口から突出するように設けられていることが好ましい。
この構成によれば、両側壁とともに上壁が吹出口から突出することにより、吹出口から吹き出される空気が両側壁及び上壁によって吹出口から左右方向及び上方に流れることが規制されるため、吹出流路を吹出口から延長することができる。これにより、両側壁及び上壁が吹出口から突出しない構成と比較して、ディフュ-ザの機能を有する吹出流路が長くなるため、吹出流路の静圧をより上昇させることができ、吹出流路における風量をより増加させることができる。また室内機本体の通風抵抗(機内圧損)が高くなる場合に、吹出口の左右方向の両端部及び上方からの空気の逆流をそれぞれ抑制できるため、サージングがより発生し難くなる。 In the indoor unit of the air conditioner, it is preferable that the upper wall is provided so as to protrude from the air outlet at least during an air conditioning operation.
According to this configuration, since the upper wall protrudes from the air outlet with the both side walls, the air blown from the air outlet is restricted from flowing in the left and right directions and upward from the air outlet by the both side walls and the upper wall. The blowing channel can be extended from the blowing port. As a result, as compared with the configuration in which the side walls and the upper wall do not protrude from the outlet, the outlet passage having the function of the diffuser becomes longer, so that the static pressure of the outlet passage can be further increased. The air volume in the flow path can be further increased. Further, when the ventilation resistance (internal pressure loss) of the indoor unit main body becomes high, the backflow of air from both the left and right ends of the air outlet and from above can be suppressed, so surging is less likely to occur.
この構成によれば、両側壁とともに上壁が吹出口から突出することにより、吹出口から吹き出される空気が両側壁及び上壁によって吹出口から左右方向及び上方に流れることが規制されるため、吹出流路を吹出口から延長することができる。これにより、両側壁及び上壁が吹出口から突出しない構成と比較して、ディフュ-ザの機能を有する吹出流路が長くなるため、吹出流路の静圧をより上昇させることができ、吹出流路における風量をより増加させることができる。また室内機本体の通風抵抗(機内圧損)が高くなる場合に、吹出口の左右方向の両端部及び上方からの空気の逆流をそれぞれ抑制できるため、サージングがより発生し難くなる。 In the indoor unit of the air conditioner, it is preferable that the upper wall is provided so as to protrude from the air outlet at least during an air conditioning operation.
According to this configuration, since the upper wall protrudes from the air outlet with the both side walls, the air blown from the air outlet is restricted from flowing in the left and right directions and upward from the air outlet by the both side walls and the upper wall. The blowing channel can be extended from the blowing port. As a result, as compared with the configuration in which the side walls and the upper wall do not protrude from the outlet, the outlet passage having the function of the diffuser becomes longer, so that the static pressure of the outlet passage can be further increased. The air volume in the flow path can be further increased. Further, when the ventilation resistance (internal pressure loss) of the indoor unit main body becomes high, the backflow of air from both the left and right ends of the air outlet and from above can be suppressed, so surging is less likely to occur.
上記空気調和機の室内機において、前記吹出流路は、前記吹出口から突出し、かつ前記吹出流路における前記吹出口よりも下流側における両側壁の左右方向の間の距離が前記吹出口の左右方向の長さよりも小さくなるように形成されていることが好ましい。
In the indoor unit of the air conditioner, the air outlet channel protrudes from the air outlet, and the distance between the left and right side walls on the downstream side of the air outlet in the air outlet channel is the left and right sides of the air outlet. It is preferable that it is formed to be smaller than the length in the direction.
この構成によれば、吹出流路において吹出口よりも下流側の断面積が小さくなるため、吹出流路において吹出口よりも下流側での空気の風速を高くすることができる。したがって、吹出口からの空気の逆流を抑制できるため、サージングがより発生し難くなる。
According to this configuration, since the cross-sectional area on the downstream side of the blowout outlet in the blowout flow path becomes small, the air wind speed on the downstream side of the blowout outlet in the blowout flow path can be increased. Accordingly, since the backflow of air from the outlet can be suppressed, surging is less likely to occur.
上記空気調和機の室内機において、前記吹出流路を構成する前記側壁を含む構成要素が前記吹出口から突出していない収納状態と、少なくとも前記側壁が前記吹出口から突出した突出状態とに変更可能に構成された移動機構を備え、前記移動機構は、空調運転中において前記突出状態になり、空調運転停止中において前記収納状態になることが好ましい。
In the indoor unit of the air conditioner, the storage unit can be changed between a housing state in which the constituent elements including the side wall constituting the outlet passage do not protrude from the outlet and a protruding state in which at least the side wall protrudes from the outlet. It is preferable that the moving mechanism is in the protruding state during the air-conditioning operation and is in the storage state when the air-conditioning operation is stopped.
この構成によれば、空調運転中において吹出流路が室内機本体から突出することにより、サージングが発生し難くなり、空調運転停止中に吹出流路が室内機本体に収納されることにより、室内機の美観が向上する。
According to this configuration, surging is unlikely to occur due to the blowout flow path protruding from the indoor unit body during the air conditioning operation, and the blowout flow path is housed in the indoor unit body while the air conditioning operation is stopped. The aesthetics of the machine are improved.
上記空気調和機の室内機において、前記移動機構は、サージングが発生した場合に、前記吹出流路における前記吹出口から突出する部分の断面積を小さくするように前記構成要素を移動させることが好ましい。
In the indoor unit of the air conditioner, when the surging occurs, the moving mechanism preferably moves the component so as to reduce a cross-sectional area of a portion protruding from the outlet in the outlet passage. .
この構成によれば、サージングが発生している場合に吹出流路において吹出口よりも下流側の断面積を小さくすることにより、吹出流路において吹出口よりも下流側での空気の風速を高くすることができる。したがって、吹出口からの空気の逆流を抑制できるため、サージングを抑制できる。
According to this configuration, when surging occurs, the air flow velocity at the downstream side of the blowout outlet is increased in the blowout passage by reducing the cross-sectional area downstream of the blowout outlet in the blowout passage. can do. Therefore, since the backflow of the air from a blower outlet can be suppressed, surging can be suppressed.
上記空気調和機の室内機において、前記クロスフローファンの羽根車の外径Dに対する前記室内機本体の高さHの比(H/D)が2.2未満となるように構成されていることが好ましい。
In the indoor unit of the air conditioner, the ratio (H / D) of the height H of the indoor unit body to the outer diameter D of the impeller of the crossflow fan is configured to be less than 2.2. Is preferred.
この構成によれば、室内機本体に対して羽根車の外径の大きいクロスフローファンを用いるため、空調運転中の騒音の低減及び消費電力の低減を図ることができる。
According to this configuration, since the cross flow fan having a large outer diameter of the impeller is used for the indoor unit main body, it is possible to reduce noise and reduce power consumption during the air conditioning operation.
(第1実施形態)
図1~図4を参照して、第1実施形態の空気調和機の室内機1について説明する。
本実施形態の室内機1は、壁掛け式であって、その後部が室内の側壁WLに取り付けられる。この室内機1は、例えば室内空間の冷房を行う冷房運転及び室内空間の暖房を行う暖房運転を行うことができる。 (First embodiment)
Anindoor unit 1 of an air conditioner according to a first embodiment will be described with reference to FIGS.
Theindoor unit 1 of the present embodiment is a wall-mounted type, and its rear part is attached to the indoor side wall WL. The indoor unit 1 can perform, for example, a cooling operation for cooling an indoor space and a heating operation for heating an indoor space.
図1~図4を参照して、第1実施形態の空気調和機の室内機1について説明する。
本実施形態の室内機1は、壁掛け式であって、その後部が室内の側壁WLに取り付けられる。この室内機1は、例えば室内空間の冷房を行う冷房運転及び室内空間の暖房を行う暖房運転を行うことができる。 (First embodiment)
An
The
図1及び図2に示すように、室内機1は、室内機本体10を備える。室内機本体10は、横方向(室内機1の左右方向)が長手方向となる箱形状に形成され、天面部11、前面部12、後面部13、両側面部14、及び底面部15によって囲まれた内部空間を有する。室内機1は、後面部13が側壁WLの取付板(図示略)にねじ等によって取り付けられることによって、側壁WLに設置される。室内機本体10の天面部11には吸込口16が設けられ、底面部15には吹出口17が設けられている。吸込口16及び吹出口17はそれぞれ、横方向(左右方向)が長手方向となるように設けられている。吸込口16は、天面部11に沿って形成されている。吹出口17は、底面部15に沿って形成されている。
As shown in FIGS. 1 and 2, the indoor unit 1 includes an indoor unit body 10. The indoor unit body 10 is formed in a box shape in which the horizontal direction (the left-right direction of the indoor unit 1) is the longitudinal direction, and is surrounded by the top surface part 11, the front surface part 12, the rear surface part 13, the both side surface parts 14, and the bottom surface part 15. Has an internal space. The indoor unit 1 is installed on the side wall WL by attaching the rear surface portion 13 to a mounting plate (not shown) of the side wall WL with a screw or the like. A suction port 16 is provided in the top surface portion 11 of the indoor unit main body 10, and an air outlet 17 is provided in the bottom surface portion 15. Each of the suction port 16 and the blower port 17 is provided such that the lateral direction (left-right direction) is the longitudinal direction. The suction port 16 is formed along the top surface portion 11. The air outlet 17 is formed along the bottom surface portion 15.
図2に示すように、室内機1は、エアフィルタ21、室内熱交換器22、クロスフローファン23、及びフラップ24を備える。エアフィルタ21、室内熱交換器22、及びクロスフローファン23は、室内機本体10内に収容されている。
As shown in FIG. 2, the indoor unit 1 includes an air filter 21, an indoor heat exchanger 22, a cross flow fan 23, and a flap 24. The air filter 21, the indoor heat exchanger 22, and the cross flow fan 23 are accommodated in the indoor unit body 10.
エアフィルタ21は、室内機本体10に着脱可能に取り付けられる。エアフィルタ21は、吸込口16から吸い込まれた室内空気中の塵埃を捕集する。エアフィルタ21は、室内機本体10に装着された状態において室内機本体10の天面部11と室内熱交換器22との間に位置する。これにより、エアフィルタ21は、室内熱交換器22の表面に室内空気中の塵埃が付着することを抑制する。
The air filter 21 is detachably attached to the indoor unit body 10. The air filter 21 collects dust in the room air sucked from the suction port 16. The air filter 21 is positioned between the top surface portion 11 of the indoor unit body 10 and the indoor heat exchanger 22 when mounted on the indoor unit body 10. Thereby, the air filter 21 suppresses that dust in indoor air adheres to the surface of the indoor heat exchanger 22.
室内熱交換器22は、複数のフィンと、複数のフィンを貫通する複数の伝熱管とを有する。室内熱交換器22は、室内機1の運転状態に応じて蒸発器又は凝縮器として機能し、伝熱管の中を流れる冷媒と室内熱交換器22を通過する空気との間で熱交換を行わせる。
The indoor heat exchanger 22 has a plurality of fins and a plurality of heat transfer tubes that penetrate the plurality of fins. The indoor heat exchanger 22 functions as an evaporator or a condenser according to the operating state of the indoor unit 1, and performs heat exchange between the refrigerant flowing in the heat transfer tube and the air passing through the indoor heat exchanger 22. Make it.
室内熱交換器22は、側面視において前後の両端が下方に向いて屈曲するように設けられている。室内熱交換器22は、クロスフローファン23を上方から取り囲むように配置されている。
The indoor heat exchanger 22 is provided such that both front and rear ends bend downward when viewed from the side. The indoor heat exchanger 22 is disposed so as to surround the cross flow fan 23 from above.
クロスフローファン23は、室内機本体10の内部の略中央に位置している。クロスフローファン23は、横方向(左右方向)が長手方向となる略円筒形状の羽根車25と、吹出口17と連通する吹出流路26を形成するファンケース27とを有する。吹出流路26は、断面積が末広がりに大きくなるように、下壁26L、左右の両側壁26S、及び上壁26Uにより構成されている。すなわち吹出流路26は、吹出口17に向かうにつれて断面積が大きくなる。このため、吹出流路26は、ディフューザの機能を有する。
The cross flow fan 23 is located in the approximate center inside the indoor unit body 10. The cross flow fan 23 includes a substantially cylindrical impeller 25 whose longitudinal direction is the longitudinal direction (left and right direction), and a fan case 27 that forms an outlet channel 26 that communicates with the outlet 17. The blowout flow path 26 is configured by a lower wall 26L, left and right side walls 26S, and an upper wall 26U so that the cross-sectional area increases toward the end. That is, the blowout channel 26 has a cross-sectional area that increases toward the blowout port 17. For this reason, the blowout flow path 26 has a function of a diffuser.
クロスフローファン23が回転駆動している場合、吸込口16から取り込まれた室内空気が室内熱交換器22を通過してクロスフローファン23に送られる。そしてクロスフローファン23に送られた室内空気は、吹出流路26を通って吹出口17から室内に吹出される。
When the cross flow fan 23 is rotationally driven, the indoor air taken in from the suction port 16 passes through the indoor heat exchanger 22 and is sent to the cross flow fan 23. The room air sent to the cross flow fan 23 is blown into the room through the blowout passage 26 and from the blowout port 17.
クロスフローファン23の羽根車25の外径を外径Dと規定し、室内機本体10の後面部13の縦方向(上下方向)の大きさを室内機本体10の高さHと規定する。この場合、外径Dは、126mm以上、150mm未満であることが好ましい。また外径Dは、135mm以上、150mm未満であることがさらに好ましい。室内機本体10の高さHは、295mm以下であることが好ましい。また室内機本体10の高さHは、250mm以上、295mm以下であることがさらに好ましい。外径Dに対する室内機本体10の高さHの比(H/D)は、2.2未満であることが好ましい。また外径Dに対する室内機本体10の高さHの比(H/D)は、1.6以上、2.2未満であることがさらに好ましい。
The outer diameter of the impeller 25 of the cross flow fan 23 is defined as the outer diameter D, and the vertical direction (vertical direction) size of the rear surface portion 13 of the indoor unit body 10 is defined as the height H of the indoor unit body 10. In this case, the outer diameter D is preferably 126 mm or more and less than 150 mm. The outer diameter D is more preferably 135 mm or more and less than 150 mm. The height H of the indoor unit main body 10 is preferably 295 mm or less. The height H of the indoor unit body 10 is more preferably 250 mm or more and 295 mm or less. The ratio (H / D) of the height H of the indoor unit body 10 to the outer diameter D is preferably less than 2.2. The ratio (H / D) of the height H of the indoor unit body 10 to the outer diameter D is more preferably 1.6 or more and less than 2.2.
フラップ24は、吹出口17の下縁において室内機本体10に対して回転可能に設けられている。フラップ24は、横方向(左右方向)が長手方向となる平板状に形成されている。フラップ24の長手方向の長さは、吹出口17の長手方向の長さと概ね等しい。フラップ24は、フラップ駆動用モータ28(図3参照)によって回転軸C1まわりで回動することができるように構成されている。
The flap 24 is provided to be rotatable with respect to the indoor unit body 10 at the lower edge of the outlet 17. The flap 24 is formed in a flat plate shape in which the horizontal direction (left-right direction) is the longitudinal direction. The length in the longitudinal direction of the flap 24 is substantially equal to the length in the longitudinal direction of the outlet 17. The flap 24 is configured to be able to rotate around the rotation axis C1 by a flap driving motor 28 (see FIG. 3).
本実施形態の室内機1は、吹出流路26を構成する両側壁26Sを移動させる移動機構29を備える。より詳細には、両側壁26Sの各々は、固定側壁26SF及び可動側壁26SMを備える。固定側壁26SF及び可動側壁26SMは、横方向(左右方向)において互いに重ね合わせられるように設けられている。可動側壁26SMは、固定側壁26SFに対してスライドして吹出口17から突出するように移動可能である。移動機構29は、可動側壁26SMを移動させる。移動機構29は、駆動源となる第1モータ(図示略)と、第1モータの回転を所定方向の直進運動に変換する回転直進変換機構(図示略)とを有する。移動機構29の一例は、送りねじ機構である。また移動機構29は、可動側壁26SMが吹出口17から突出した状態において、左右の可動側壁26SMの間の断面積を小さくするように可動側壁26SMを移動可能となるように構成されている。一例では、移動機構29は、可動側壁26SMを回転軸C2(図2(b)参照)まわりで回動させる第2モータ(図示略)を有する。これにより、左右両側の可動側壁26SMの突出先端側の左右方向の間の距離を変更できる。このように、移動機構29は、左右の可動側壁26SMの間の断面積を小さくする制限状態と、左右の可動側壁26SMの間の断面積を小さくしない通常状態とを切替可能である。一例では、制限状態では、左右の可動側壁26SMの突出先端側の左右方向の間の距離が吹出口17の左右方向の長さよりも小さくなる。
The indoor unit 1 of the present embodiment includes a moving mechanism 29 that moves both side walls 26S constituting the blowout flow path 26. More specifically, each of the side walls 26S includes a fixed side wall 26SF and a movable side wall 26SM. The fixed side wall 26SF and the movable side wall 26SM are provided so as to overlap each other in the lateral direction (left-right direction). The movable side wall 26SM is movable so as to slide with respect to the fixed side wall 26SF and protrude from the blowout port 17. The moving mechanism 29 moves the movable side wall 26SM. The moving mechanism 29 includes a first motor (not shown) serving as a drive source, and a rotation / straight-forward conversion mechanism (not shown) that converts the rotation of the first motor into a linear movement in a predetermined direction. An example of the moving mechanism 29 is a feed screw mechanism. Further, the moving mechanism 29 is configured to be able to move the movable side wall 26SM so as to reduce the cross-sectional area between the left and right movable side walls 26SM in a state where the movable side wall 26SM protrudes from the blower outlet 17. In one example, the moving mechanism 29 includes a second motor (not shown) that rotates the movable side wall 26SM around the rotation axis C2 (see FIG. 2B). Thereby, the distance between the left-right direction of the protrusion front end side of the movable side wall 26SM on both right and left sides can be changed. As described above, the moving mechanism 29 can switch between a restricted state in which the cross-sectional area between the left and right movable side walls 26SM is reduced and a normal state in which the cross-sectional area between the left and right movable side walls 26SM is not reduced. In one example, in the restricted state, the distance between the left and right directions on the protruding tip side of the left and right movable side walls 26SM is smaller than the length of the outlet 17 in the left and right direction.
図3に示すように、空気調和機は、室外機2の圧縮機3、四路切換弁4、室外ファン5、及び膨張弁6のそれぞれを制御する室外制御部7を備える。一例では、室外制御部7は、圧縮機3の運転周波数(Hz)、室外ファン5のモータの回転数(rpm)、及び膨張弁6の開度をそれぞれ制御する。また室外制御部7は、空気調和機の冷媒回路(図示略)が冷房サイクルとなる第1状態と、暖房サイクルとなる第2状態とに四路切換弁4を切り替える。
As shown in FIG. 3, the air conditioner includes an outdoor control unit 7 that controls the compressor 3, the four-way switching valve 4, the outdoor fan 5, and the expansion valve 6 of the outdoor unit 2. In one example, the outdoor control unit 7 controls the operating frequency (Hz) of the compressor 3, the rotation speed (rpm) of the motor of the outdoor fan 5, and the opening degree of the expansion valve 6. The outdoor control unit 7 switches the four-way switching valve 4 between a first state in which the refrigerant circuit (not shown) of the air conditioner is in the cooling cycle and a second state in which the heating cycle is performed.
室内機1は、室内制御部30を備える。室内制御部30は、予め定められる制御プログラムを実行する演算処理装置と、各種の制御プログラム及び各種の制御処理に用いられる情報が記憶される記憶部とを含む。演算処理装置は、例えばCPU(Central Processing Unit)またはMPU(Micro Processing Unit)を含む。記憶部は、例えば不揮発性メモリ及び揮発性メモリを含む。不揮発性メモリは、例えば、ROM(Read Only Memory)、ハードディスク、フラッシュメモリを含む。揮発性メモリは、例えば、RAM(Random Access Memory)を含む。室内制御部30は、1又は複数のマイクロコンピュータを含んでいてもよい。なお、室外制御部7も同様に構成されてもよい。
The indoor unit 1 includes an indoor control unit 30. The indoor control unit 30 includes an arithmetic processing unit that executes a predetermined control program, and a storage unit that stores various control programs and information used for various control processes. The arithmetic processing unit includes, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). The storage unit includes, for example, a nonvolatile memory and a volatile memory. The non-volatile memory includes, for example, a ROM (Read Only Memory), a hard disk, and a flash memory. The volatile memory includes, for example, RAM (Random Access Memory). The indoor control unit 30 may include one or a plurality of microcomputers. The outdoor control unit 7 may be configured similarly.
室内制御部30は、室外制御部7と有線又は無線によって通信可能に構成されている。また室内制御部30は、リモートコントローラ31と無線によって通信可能に構成されている。室内制御部30は、リモートコントローラ31の運転指示に基づいて、クロスフローファン23、フラップ駆動用モータ28、及び移動機構29をそれぞれ制御する。また室内制御部30は、リモートコントローラ31の運転指示の内容を室外制御部7に通信する。室外制御部7は、リモートコントローラ31の運転指示に基づいて、圧縮機3の運転周波数(Hz)、室外ファン5のモータの回転数(rpm)、膨張弁6の開度、並びに四路切換弁4の第1状態及び第2状態の切り替えをそれぞれ制御する。
The indoor control unit 30 is configured to be communicable with the outdoor control unit 7 by wire or wirelessly. The indoor control unit 30 is configured to be able to communicate with the remote controller 31 by radio. The indoor control unit 30 controls the cross flow fan 23, the flap driving motor 28, and the moving mechanism 29 based on the operation instruction of the remote controller 31. The indoor control unit 30 communicates the content of the operation instruction of the remote controller 31 to the outdoor control unit 7. The outdoor control unit 7 determines the operation frequency (Hz) of the compressor 3, the rotational speed (rpm) of the motor of the outdoor fan 5, the opening degree of the expansion valve 6, and the four-way switching valve based on the operation instruction of the remote controller 31. 4 to control switching between the first state and the second state.
本実施形態の室内制御部30は、図1(a)及び図2(a)に示すように、可動側壁26SMが吹出口17から突出していない収納状態と、図1(b)及び図2(b)に示すように、可動側壁26SMが吹出口17から突出した突出状態とを切り替えるように移動機構29を制御する。一例では、室内制御部30は、空調運転中において突出状態となるように移動機構29を制御し、空調運転停止中において収納状態となるように移動機構29を制御する。一例では、図1(b)及び図2(b)に示すとおり、突出状態において、可動側壁26SMは、吹出口17の短手方向(上下方向)の全体を覆うように構成されている。
As shown in FIGS. 1 (a) and 2 (a), the indoor control unit 30 of the present embodiment is in a storage state in which the movable side wall 26SM does not protrude from the outlet 17, and FIGS. As shown in b), the moving mechanism 29 is controlled so as to switch between the protruding state in which the movable side wall 26SM protrudes from the outlet 17. In one example, the indoor control unit 30 controls the moving mechanism 29 so as to be in the protruding state during the air conditioning operation, and controls the moving mechanism 29 so as to be in the stored state when the air conditioning operation is stopped. In one example, as shown in FIGS. 1B and 2B, the movable side wall 26SM is configured to cover the entire short direction (vertical direction) of the air outlet 17 in the protruding state.
また室内制御部30は、空調運転停止中において、図1(a)及び図2(a)に示すように、フラップ24が吹出口17を覆うようにフラップ駆動用モータ28を制御し、空調運転中において、図1(b)及び図2(b)に示すように、フラップ24が吹出口17を開口するようにフラップ駆動用モータ28を制御する。このように、図1(a)及び図2(a)に示す空調運転停止中の室内機1は、可動側壁26SM及びフラップ24が室内機本体10から突出していない状態となり、図1(b)及び図2(b)に示す空調運転中の室内機1は、可動側壁26SM及びフラップ24が室内機本体10から突出している状態となる。
Moreover, the indoor control part 30 controls the flap drive motor 28 so that the flap 24 covers the outlet 17 as shown in FIGS. Inside, the flap drive motor 28 is controlled so that the flap 24 opens the air outlet 17 as shown in FIGS. 1 (b) and 2 (b). As described above, in the indoor unit 1 in the air conditioning operation stop shown in FIGS. 1A and 2A, the movable side wall 26SM and the flap 24 do not protrude from the indoor unit body 10, and FIG. And the indoor unit 1 in the air conditioning operation shown in FIG. 2B is in a state in which the movable side wall 26SM and the flap 24 protrude from the indoor unit body 10.
なお、空調運転中において、フラップ24の回動位置は、任意に変更可能である。一例では、リモートコントローラ31による指示に基づいて、フラップ24の回動位置が変更可能である。
In addition, during the air-conditioning operation, the rotational position of the flap 24 can be arbitrarily changed. In one example, the rotation position of the flap 24 can be changed based on an instruction from the remote controller 31.
また室内制御部30は、サージングが発生した場合、可動側壁26SMを回転軸C2(図2(b)参照)まわりで回動させる第2モータによって左右の可動側壁26SMの間の断面積が小さくなる制限状態に移動機構29を制御する。制限状態では、吹出流路26における吹出口17の断面積よりも吹出口17に対して下流側の断面積が小さくなることにより、吹出流路26における室内空気の風速が高くなるため、サージングを抑制できる。また室内制御部30は、サージングが抑制された場合、第2モータによって制限状態から通常状態に切り替えるように移動機構29を制御する。ここで、サージングとは、吹出口17から吹き出される室内空気の風量や圧力が不安定になり、吹出口17で逆流が生じることに起因して生じる騒音(例えば「バサバサ」という騒音)である。このサージングは、エアフィルタ21が塵埃によって目詰まりして通風抵抗が高くなった場合や室内熱交換器22に結露した場合に発生し易い。
Further, when surging occurs, the indoor control unit 30 reduces the cross-sectional area between the left and right movable side walls 26SM by the second motor that rotates the movable side wall 26SM around the rotation axis C2 (see FIG. 2B). The moving mechanism 29 is controlled to the restricted state. In the restricted state, since the cross-sectional area of the downstream side with respect to the blowout port 17 becomes smaller than the cross-sectional area of the blowout port 17 in the blowout flow path 26, the wind speed of the indoor air in the blowout flow path 26 becomes high, so surging Can be suppressed. Further, when surging is suppressed, the indoor control unit 30 controls the moving mechanism 29 so that the second motor switches from the restricted state to the normal state. Here, surging is noise (for example, noise called “basabasa”) that is generated when the air volume and pressure of the indoor air blown out from the air outlet 17 becomes unstable and a reverse flow occurs in the air outlet 17. . This surging is likely to occur when the air filter 21 is clogged with dust and the ventilation resistance becomes high, or when condensation occurs on the indoor heat exchanger 22.
サージングの検出の一例は、クロスフローファン23のファンモータ(図示略)の回転数(rpm)に基づいて行われる。より詳細には、室内制御部30は、リモートコントローラ31の運転指示によってファンモータの回転数を設定する。このときに設定されたファンモータの回転数を設定回転数と規定する。室内制御部30は、ファンモータの回転数が設定回転数を中心とする所定幅の許容回転数範囲内か否かを判定する。室内制御部30は、ファンモータの回転数が許容回転数範囲内の場合、ファンモータの回転数が安定しているため、室内空気の風量や圧力が不安定になり難いので、サージングが発生していないと判定する。一方、室内制御部30は、モータの回転数が許容回転数範囲外の場合、ファンモータの回転数が不安定であり、室内空気の風量や圧力が不安定になり易いので、サージングが発生していると判定する。なお、上記サージングの検出において、所定幅は、ファンモータの回転数のばらつきに起因してサージングが発生すると判定するための幅であり、試験等によって予め設定されている。
An example of surging detection is performed based on the rotational speed (rpm) of a fan motor (not shown) of the cross flow fan 23. More specifically, the indoor control unit 30 sets the rotation speed of the fan motor according to the operation instruction of the remote controller 31. The rotation speed of the fan motor set at this time is defined as the set rotation speed. The indoor control unit 30 determines whether or not the rotation speed of the fan motor is within an allowable rotation speed range with a predetermined width centered on the set rotation speed. When the fan motor rotation speed is within the allowable rotation speed range, the indoor control unit 30 generates a surging because the fan motor rotation speed is stable and the air volume and pressure of the indoor air are unlikely to become unstable. Judge that it is not. On the other hand, if the motor speed is outside the allowable speed range, the indoor control unit 30 may generate surging because the fan motor speed is unstable and the air volume or pressure of the indoor air tends to become unstable. It is determined that In the detection of surging, the predetermined width is a width for determining that surging occurs due to variations in the rotational speed of the fan motor, and is set in advance by a test or the like.
またサージングの検出は、クロスフローファン23のファンモータに供給される電流に基づいて行われてもよい。より詳細には、室内制御部30は、ファンモータに供給される電流が設定回転数に対応する電流値を中心とする所定幅の許容電流範囲内か否かを判定する。室内制御部30は、ファンモータに供給される電流が許容電流範囲内の場合、室内空気の風量や圧力が安定しており、ファンモータに供給されている電流が安定しているので、サージングが発生していないと判定する。一方、室内制御部30は、ファンモータに供給される電流が許容電流範囲外の場合、室内空気の風量や圧力が不安定であり、ファンモータに供給される電流が安定していないため、サージングが発生していると判定する。なお、所定幅は、ファンモータに供給される電流のばらつきに起因してサージングが発生すると判定するための幅であり、試験等によって予め設定されている。
Further, the detection of surging may be performed based on the current supplied to the fan motor of the cross flow fan 23. More specifically, the indoor control unit 30 determines whether or not the current supplied to the fan motor is within an allowable current range having a predetermined width centered on a current value corresponding to the set rotational speed. When the current supplied to the fan motor is within the allowable current range, the indoor control unit 30 is stable in the air volume and pressure of the indoor air, and the current supplied to the fan motor is stable. It is determined that it has not occurred. On the other hand, when the current supplied to the fan motor is outside the allowable current range, the indoor control unit 30 performs surging because the air volume and pressure of the indoor air are unstable and the current supplied to the fan motor is not stable. Is determined to have occurred. The predetermined width is a width for determining that surging occurs due to variations in the current supplied to the fan motor, and is set in advance by a test or the like.
上記のような室内制御部30による移動機構29の移動制御の処理手順の一例について図4を用いて説明する。この移動制御は、空調運転の開始から終了にわたる期間において実行される。
An example of the processing procedure of the movement control of the moving mechanism 29 by the indoor control unit 30 as described above will be described with reference to FIG. This movement control is executed in a period from the start to the end of the air conditioning operation.
室内制御部30は、ステップS11において空調運転を開始するか否かを判定する。一例では、室内制御部30は、リモートコントローラ31による運転開始指示を受信した場合、空調運転を開始すると判定し、運転開始指示を受信していない場合、空調運転を開始しないと判定する。
The indoor control unit 30 determines whether or not to start the air conditioning operation in step S11. In one example, the indoor control unit 30 determines that the air conditioning operation is started when the operation start instruction is received from the remote controller 31, and determines that the air conditioning operation is not started when the operation start instruction is not received.
室内制御部30は、空調運転を開始しない場合(ステップS11:NO)、処理を終了する。この場合、可動側壁26SMは収納状態が維持される。一方、室内制御部30は、空調運転を開始する場合(ステップS11:YES)、ステップS12において可動側壁26SMを突出状態に設定する。これにより、可動側壁26SMが吹出口17から突出した状態になる。そして室内制御部30は、ステップS13においてサージングが発生しているか否かを判定する。
The indoor control part 30 complete | finishes a process, when not starting an air-conditioning driving | operation (step S11: NO). In this case, the movable side wall 26SM is maintained in the stored state. On the other hand, when starting the air conditioning operation (step S11: YES), the indoor control unit 30 sets the movable side wall 26SM to the protruding state in step S12. As a result, the movable side wall 26SM protrudes from the air outlet 17. The indoor control unit 30 determines whether surging has occurred in step S13.
室内制御部30は、サージングが発生している場合(ステップS13:YES)、ステップS14において左右の可動側壁26SMの間の断面積が小さくなる制限状態となるように移動機構29の第2モータを制御する。そして室内制御部30は、ステップS15において空調運転を終了するか否かを判定する。一例では、室内制御部30は、リモートコントローラ31による運転終了指示を受信した場合、空調運転を終了すると判定し、運転終了指示を受信していない場合、空調運転を終了しないと判定する。
When surging has occurred (step S13: YES), the indoor control unit 30 turns on the second motor of the moving mechanism 29 so that the cross-sectional area between the left and right movable side walls 26SM is reduced in step S14. Control. And the indoor control part 30 determines whether air conditioning operation is complete | finished in step S15. In one example, the indoor control unit 30 determines that the air conditioning operation is to be ended when the operation end instruction is received from the remote controller 31, and determines that the air conditioning operation is not to be ended when the operation end instruction is not received.
室内制御部30は、空調運転を終了しない場合(ステップS15:NO)、ステップS13に移行する。一方、室内制御部30は、空調運転を終了する場合(ステップS15:YES)、ステップS16において可動側壁26SMを収納状態に設定する。これにより、可動側壁26SMが室内機本体10内に収納された状態になる。
If the indoor control unit 30 does not end the air conditioning operation (step S15: NO), the indoor control unit 30 proceeds to step S13. On the other hand, when the air-conditioning operation is ended (step S15: YES), the indoor control unit 30 sets the movable side wall 26SM to the stored state in step S16. As a result, the movable side wall 26SM is housed in the indoor unit body 10.
また室内制御部30は、サージングが発生していない場合(ステップS13:NO)、ステップS17において可動側壁26SMが制限状態か否かを判定する。室内制御部30は、可動側壁26SMが制限状態の場合(ステップS17:YES)、ステップS18において可動側壁26SMを通常状態に変更し、ステップS15に移行する。一方、室内制御部30は、可動側壁26SMが通常状態の場合(ステップS17:NO)、可動側壁26SMを通常状態に維持したまま、ステップS15に移行する。
Further, when surging has not occurred (step S13: NO), the indoor control unit 30 determines whether or not the movable side wall 26SM is in a restricted state in step S17. When the movable side wall 26SM is in the restricted state (step S17: YES), the indoor control unit 30 changes the movable side wall 26SM to the normal state in step S18, and proceeds to step S15. On the other hand, when the movable side wall 26SM is in the normal state (step S17: NO), the indoor control unit 30 proceeds to step S15 while maintaining the movable side wall 26SM in the normal state.
本実施形態の作用について説明する。
低電力及び低騒音のためにクロスフローファン23の羽根車25の外径Dを大きくする一方、室内機本体10の設置容易性の低下の抑制のために室内機本体10の高さHを大きくしない場合、室内機本体10においてクロスフローファン23の吹出流路26を形成する領域が小さくなり、吹出流路26が短くなる。吹出流路26が短くなると、吹出流路26において室内空気の動圧から静圧への変換が十分ではなく、クロスフローファン23の風量や圧力が低下してしまう。 The operation of this embodiment will be described.
While the outer diameter D of theimpeller 25 of the cross flow fan 23 is increased for low power and low noise, the height H of the indoor unit body 10 is increased in order to suppress a decrease in ease of installation of the indoor unit body 10. If not, the area in the indoor unit body 10 where the blowout flow path 26 of the cross flow fan 23 is formed becomes smaller, and the blowout flow path 26 becomes shorter. When the blowout flow path 26 becomes short, the conversion from the dynamic pressure of the room air to the static pressure is not sufficient in the blowout flow path 26, and the air volume and pressure of the cross flow fan 23 are reduced.
低電力及び低騒音のためにクロスフローファン23の羽根車25の外径Dを大きくする一方、室内機本体10の設置容易性の低下の抑制のために室内機本体10の高さHを大きくしない場合、室内機本体10においてクロスフローファン23の吹出流路26を形成する領域が小さくなり、吹出流路26が短くなる。吹出流路26が短くなると、吹出流路26において室内空気の動圧から静圧への変換が十分ではなく、クロスフローファン23の風量や圧力が低下してしまう。 The operation of this embodiment will be described.
While the outer diameter D of the
さらに、室内熱交換器22の結露やエアフィルタ21の目詰まりによって室内機本体10の内部の通風抵抗が高くなると、吹出流路26の室内空気の風速が低下し、吹出口17から逆流が生じ易くなる。その結果、吹出口17からの室内空気の逆流に起因してクロスフローファン23からの吹き出される室内空気の気流が不安定になるサージングが発生するおそれがある。特に、吹出口17の左右方向の両端部では、吹出口17の左右方向の中央部に比べ、室内空気の風速が遅いことが知られている。このため、吹出口17の左右方向の両端部では、吹出口17からの逆流がより生じ易くなっている。
Furthermore, when the ventilation resistance inside the indoor unit body 10 increases due to condensation in the indoor heat exchanger 22 or clogging of the air filter 21, the wind speed of the indoor air in the blowout flow path 26 decreases and a backflow occurs from the blowout port 17. It becomes easy. As a result, surging in which the airflow of the indoor air blown out from the crossflow fan 23 becomes unstable due to the reverse flow of the indoor air from the blowout port 17 may occur. In particular, it is known that the wind speed of the indoor air is slower at the left and right end portions of the air outlet 17 than at the center portion of the air outlet 17 in the left and right direction. For this reason, the backflow from the blower outlet 17 is more likely to occur at both ends of the blower outlet 17 in the left-right direction.
このような点に鑑みて、本実施形態では、空調運転中において、可動側壁26SMを吹出口17から突出させている。これにより、可動側壁26SMの長さ分、吹出流路26を延長することができる。さらに、可動側壁26SMが吹出口17の左右方向の両端部において吹出口17から突出するように延びるため、吹出口17の左右方向の両端部よりも外側から吹出口17に室内空気が逆流することが抑制される。その結果、サージングを抑制でき、クロスフローファン23の風量や圧力の変動を抑制できる。
In view of such points, in the present embodiment, the movable side wall 26SM is protruded from the outlet 17 during the air conditioning operation. Thereby, the blowing flow path 26 can be extended by the length of the movable side wall 26SM. Furthermore, since the movable side wall 26SM extends so as to protrude from the blower outlet 17 at both ends in the left-right direction of the blower outlet 17, the indoor air flows back to the blower outlet 17 from outside the both ends in the left-right direction of the blower outlet 17. Is suppressed. As a result, surging can be suppressed and fluctuations in the air volume and pressure of the cross flow fan 23 can be suppressed.
本実施形態によれば、以下の効果が得られる。
(1-1)両側壁26Sの可動側壁26SMは、少なくとも空調運転中に吹出口17から突出するように設けられている。この構成によれば、吹出口17から吹出される室内空気が可動側壁26SMによって吹出口17の左右方向に流れることが規制されるため、吹出流路26を吹出口17から延長することができる。これにより、吹出流路26の静圧を上昇させることができるため、吹出流路26における風量を増加させることができる。また、例えば室内熱交換器22の結露やエアフィルタ21の目詰まり等によって室内機本体10内部の通風抵抗(機内圧損)が高くなる場合に、吹出口17の両端部からの室内空気の逆流を抑制できるため、サージングが発生し難くなる。 According to the present embodiment, the following effects can be obtained.
(1-1) The movable side walls 26SM of theside walls 26S are provided so as to protrude from the air outlet 17 at least during the air conditioning operation. According to this structure, since the indoor air blown from the blower outlet 17 is restricted by the movable side wall 26SM from flowing in the left-right direction of the blower outlet 17, the blowout flow path 26 can be extended from the blower outlet 17. Thereby, since the static pressure of the blowing flow path 26 can be raised, the air volume in the blowing flow path 26 can be increased. Further, when the ventilation resistance (internal pressure loss) inside the indoor unit body 10 increases due to, for example, condensation in the indoor heat exchanger 22 or clogging of the air filter 21, the backflow of room air from both ends of the air outlet 17 is reduced. Since it can be suppressed, surging hardly occurs.
(1-1)両側壁26Sの可動側壁26SMは、少なくとも空調運転中に吹出口17から突出するように設けられている。この構成によれば、吹出口17から吹出される室内空気が可動側壁26SMによって吹出口17の左右方向に流れることが規制されるため、吹出流路26を吹出口17から延長することができる。これにより、吹出流路26の静圧を上昇させることができるため、吹出流路26における風量を増加させることができる。また、例えば室内熱交換器22の結露やエアフィルタ21の目詰まり等によって室内機本体10内部の通風抵抗(機内圧損)が高くなる場合に、吹出口17の両端部からの室内空気の逆流を抑制できるため、サージングが発生し難くなる。 According to the present embodiment, the following effects can be obtained.
(1-1) The movable side walls 26SM of the
(1-2)移動機構29は、サージングが発生した場合、一対の可動側壁26SMの間の距離を吹出口17の左右方向の長さよりも小さくする。この構成によれば、吹出流路26における吹出口17よりも下流側の断面積が小さくなるため、吹出流路26における吹出口17よりも下流側の室内空気の風速を高くすることができる。したがって、吹出口17からの室内空気の逆流を抑制できるため、サージングを抑制できる。
(1-2) When surging occurs, the moving mechanism 29 makes the distance between the pair of movable side walls 26SM smaller than the length of the air outlet 17 in the left-right direction. According to this configuration, since the cross-sectional area downstream of the blowout port 17 in the blowout flow channel 26 is reduced, the wind speed of the indoor air downstream of the blowout port 17 in the blowout flow channel 26 can be increased. Therefore, since the backflow of the room air from the blower outlet 17 can be suppressed, surging can be suppressed.
(1-3)室内機1は、空調運転中において可動側壁26SMを吹出口17から突出させた突出状態とし、空調運転停止中において可動側壁26SMを吹出口17から突出させない収納状態とする移動機構29を備える。この構成によれば、空調運転中において可動側壁26SMが室内機本体10から突出することにより、サージングが発生し難くなり、空調運転停止中に可動側壁26SMが室内機本体10に収納されることにより、室内機1の美観が向上する。
(1-3) The indoor unit 1 has a moving mechanism in which the movable side wall 26SM is protruded from the outlet 17 during the air conditioning operation and is in a stowed state in which the movable side wall 26SM is not protruded from the outlet 17 during the air conditioning operation stop. 29. According to this configuration, since the movable side wall 26SM protrudes from the indoor unit body 10 during the air conditioning operation, surging is less likely to occur, and the movable side wall 26SM is stored in the indoor unit body 10 while the air conditioning operation is stopped. The aesthetics of the indoor unit 1 are improved.
(1-4)室内機1は、クロスフローファン23の羽根車25の外径Dに対する室内機本体10の高さHの比(H/D)が2.2未満となるように構成されている。この構成によれば、室内機本体10に対して羽根車25の外径Dの大きいクロスフローファン23を用いるため、室内機1の運転時の騒音の低減及び消費電力の低減を図ることができる。
(1-4) The indoor unit 1 is configured such that the ratio (H / D) of the height H of the indoor unit body 10 to the outer diameter D of the impeller 25 of the crossflow fan 23 is less than 2.2. Yes. According to this configuration, since the cross-flow fan 23 having a large outer diameter D of the impeller 25 is used for the indoor unit body 10, noise during operation of the indoor unit 1 and power consumption can be reduced. .
(1-5)室内機1は、クロスフローファン23の羽根車25の外径Dに対する室内機本体10の高さHの比(H/D)が1.6以上、2.2未満となるように構成されている。この構成によれば、上記(1-4)の効果に加え、室内機本体10の設定容易性の低下を抑制することができる。
(1-5) In the indoor unit 1, the ratio (H / D) of the height H of the indoor unit body 10 to the outer diameter D of the impeller 25 of the crossflow fan 23 is 1.6 or more and less than 2.2. It is configured as follows. According to this configuration, in addition to the effect (1-4) described above, it is possible to suppress a decrease in ease of setting the indoor unit body 10.
(1-6)室内機本体10の高さHは、295mm以下である。これにより、室内機本体10の設置容易性の低下を抑制できる。特に、室内機本体10の高さHは、250mm以上、295mm以下である。これにより、羽根車25の外径Dが大きいクロスフローファン23を用いることができ、低電力及び低騒音を実現できるとともに室内機本体10の設定容易性の低下を抑制することができる。
(1-6) The height H of the indoor unit body 10 is 295 mm or less. Thereby, the fall of the installation ease of the indoor unit main body 10 can be suppressed. In particular, the height H of the indoor unit body 10 is 250 mm or more and 295 mm or less. Thereby, the cross flow fan 23 with the large outer diameter D of the impeller 25 can be used, and low power and low noise can be realized, and a decrease in ease of setting of the indoor unit body 10 can be suppressed.
(第2実施形態)
図5及び図6を参照して、第2実施形態の空気調和機の室内機1について説明する。本実施形態の室内機1は、第1実施形態の室内機1と比較して、吹出流路26の両側壁26Sとともに下壁26Lを空調運転中において吹出口17から突出させる点が異なる。以下の説明において、第1実施形態の室内機1と共通の構成要素については同じ符号を付し、その説明を省略する場合がある。 (Second Embodiment)
With reference to FIG.5 and FIG.6, theindoor unit 1 of the air conditioner of 2nd Embodiment is demonstrated. The indoor unit 1 according to the present embodiment is different from the indoor unit 1 according to the first embodiment in that the lower wall 26L together with the side walls 26S of the blowout flow path 26 protrudes from the blowout port 17 during the air conditioning operation. In the following description, the same reference numerals are given to components common to the indoor unit 1 of the first embodiment, and the description thereof may be omitted.
図5及び図6を参照して、第2実施形態の空気調和機の室内機1について説明する。本実施形態の室内機1は、第1実施形態の室内機1と比較して、吹出流路26の両側壁26Sとともに下壁26Lを空調運転中において吹出口17から突出させる点が異なる。以下の説明において、第1実施形態の室内機1と共通の構成要素については同じ符号を付し、その説明を省略する場合がある。 (Second Embodiment)
With reference to FIG.5 and FIG.6, the
図5(b)及び図6(b)に示すように、下壁26Lは、固定下壁26LF及び可動下壁26LMを含む。可動下壁26LMの先端部には、フラップ24が可動下壁26LMに対して回動可能に取り付けられている。固定下壁26LF及び可動下壁26LMは、縦方向(上下方向)において互いに重ね合わせられるように設けられている。可動下壁26LMは、固定下壁26LFに対してスライドして吹出口17から突出するように移動可能である。
As shown in FIGS. 5B and 6B, the lower wall 26L includes a fixed lower wall 26LF and a movable lower wall 26LM. A flap 24 is attached to the tip of the movable lower wall 26LM so as to be rotatable with respect to the movable lower wall 26LM. The fixed lower wall 26LF and the movable lower wall 26LM are provided so as to overlap each other in the vertical direction (vertical direction). The movable lower wall 26LM is movable so as to slide with respect to the fixed lower wall 26LF and protrude from the outlet 17.
本実施形態の移動機構29は、可動側壁26SM及び可動下壁26LMをそれぞれ移動させるように構成されている。一例では、移動機構29は、可動側壁26SMを固定側壁26SFに対してスライドして移動させる機能と、可動下壁26LMを固定下壁26LFに対してスライドして移動させる機能とを有する。移動機構29は、第1モータと、第1モータの回転を可動側壁26SMの直進運動に変換する第1回転直進変換機構と、第1モータの回転を可動下壁26LMの直進運動に変換する第2回転直進変換機構とを備える。すなわち本実施形態の移動機構29は、1つの駆動源で可動側壁26SM及び可動下壁26LMをそれぞれ移動させる。
The moving mechanism 29 of the present embodiment is configured to move the movable side wall 26SM and the movable lower wall 26LM, respectively. In one example, the moving mechanism 29 has a function of sliding and moving the movable side wall 26SM with respect to the fixed side wall 26SF and a function of sliding and moving the movable lower wall 26LM with respect to the fixed lower wall 26LF. The moving mechanism 29 includes a first motor, a first rotation / straight-line conversion mechanism that converts rotation of the first motor into linear movement of the movable side wall 26SM, and a first motor that converts rotation of the first motor into linear movement of the movable lower wall 26LM. A two-rotation linear conversion mechanism. That is, the moving mechanism 29 of the present embodiment moves the movable side wall 26SM and the movable lower wall 26LM with one drive source.
本実施形態の室内制御部30(図3参照)は、図5(a)及び図6(a)に示すように、可動側壁26SM及び可動下壁26LMがそれぞれ吹出口17から突出していない収納状態と、図5(b)及び図6(b)に示すように、可動側壁26SM及び可動下壁26LMがそれぞれ吹出口17から突出した突出状態とを切り替えるように移動機構29を制御する。一例では、室内制御部30は、空調運転中において突出状態となるように移動機構29を制御し、空調運転停止中において収納状態となるように移動機構29を制御する。
The indoor control unit 30 (see FIG. 3) of the present embodiment is in a storage state in which the movable side wall 26SM and the movable lower wall 26LM do not protrude from the outlet 17 as shown in FIGS. 5 (a) and 6 (a). Then, as shown in FIGS. 5B and 6B, the moving mechanism 29 is controlled so as to switch between the protruding state in which the movable side wall 26SM and the movable lower wall 26LM protrude from the outlet 17 respectively. In one example, the indoor control unit 30 controls the moving mechanism 29 so as to be in the protruding state during the air conditioning operation, and controls the moving mechanism 29 so as to be in the stored state when the air conditioning operation is stopped.
可動側壁26SMは、突出状態において、可動下壁26LMの左右方向の端部上に位置する。可動側壁26SMは、可動側壁26SMと可動下壁26LMとの上下方向の間に隙間が形成されないように設けられる。また、可動側壁26SMは、上壁26Uと可動下壁26LMとの間において回転軸C2まわりで回動可能である。
The movable side wall 26SM is located on the left and right ends of the movable lower wall 26LM in the protruding state. The movable side wall 26SM is provided such that no gap is formed between the movable side wall 26SM and the movable lower wall 26LM in the vertical direction. Further, the movable side wall 26SM is rotatable around the rotation axis C2 between the upper wall 26U and the movable lower wall 26LM.
また、本実施形態のクロスフローファン23の羽根車25の外径D及び室内機本体10の高さHの関係は、第1実施形態のクロスフローファン23の羽根車25の外径D及び室内機本体10の高さHの関係と同じである。
The relationship between the outer diameter D of the impeller 25 of the crossflow fan 23 and the height H of the indoor unit body 10 of the present embodiment is the same as the outer diameter D of the impeller 25 of the crossflow fan 23 of the first embodiment and the room. This is the same as the relationship of the height H of the machine body 10.
本実施形態によれば、第1実施形態の効果に加え、以下の効果が得られる。
(2-1)両側壁26Sの可動側壁26SM及び下壁26Lの可動下壁26LMはそれぞれ、少なくとも空調運転中に吹出口17から突出するように設けられている。この構成によれば、吹出口17から吹き出される室内空気が可動側壁26SM及び可動下壁26LMによって吹出口17から左右方向及び下方に流れることが規制されるため、吹出流路26を吹出口17から延長することができる。これにより、両側壁26S及び下壁26Lが吹出口17から突出しない構成と比較して、ディフューザの機能を有する吹出流路26が長くなるため、吹出流路26の静圧をより上昇させることができ、吹出流路26における風量をより増加させることができる。また、室内機本体10の通風抵抗(機内圧損)が高くなる場合に、吹出口17の左右方向の両端部及び下方からの室内空気の逆流をそれぞれ抑制できるため、サージングがより発生し難くなる。 According to this embodiment, in addition to the effects of the first embodiment, the following effects are obtained.
(2-1) The movable side wall 26SM of the bothside walls 26S and the movable lower wall 26LM of the lower wall 26L are provided so as to protrude from the air outlet 17 at least during the air conditioning operation. According to this configuration, the indoor air blown from the blowout port 17 is restricted from flowing in the left and right directions and downward from the blowout port 17 by the movable side wall 26SM and the movable lower wall 26LM. Can be extended from Thereby, compared with the configuration in which the side walls 26S and the lower wall 26L do not protrude from the blowout port 17, the blowout flow channel 26 having the function of the diffuser becomes longer, so that the static pressure of the blowout flow channel 26 can be further increased. It is possible to increase the air volume in the blowout flow path 26. Further, when the ventilation resistance (in-machine pressure loss) of the indoor unit main body 10 is increased, the backflow of the indoor air from both the left and right ends of the air outlet 17 and from the lower side can be suppressed, so surging is less likely to occur.
(2-1)両側壁26Sの可動側壁26SM及び下壁26Lの可動下壁26LMはそれぞれ、少なくとも空調運転中に吹出口17から突出するように設けられている。この構成によれば、吹出口17から吹き出される室内空気が可動側壁26SM及び可動下壁26LMによって吹出口17から左右方向及び下方に流れることが規制されるため、吹出流路26を吹出口17から延長することができる。これにより、両側壁26S及び下壁26Lが吹出口17から突出しない構成と比較して、ディフューザの機能を有する吹出流路26が長くなるため、吹出流路26の静圧をより上昇させることができ、吹出流路26における風量をより増加させることができる。また、室内機本体10の通風抵抗(機内圧損)が高くなる場合に、吹出口17の左右方向の両端部及び下方からの室内空気の逆流をそれぞれ抑制できるため、サージングがより発生し難くなる。 According to this embodiment, in addition to the effects of the first embodiment, the following effects are obtained.
(2-1) The movable side wall 26SM of the both
(2-2)室内機1は、空調運転中において可動側壁26SM及び可動下壁26LMをそれぞれ吹出口17から突出させた突出状態とし、空調運転停止中において可動側壁26SM及び可動下壁26LMをそれぞれ吹出口17から突出させない収納状態とする移動機構29を備える。この構成によれば、空調運転中において可動側壁26SM及び可動下壁26LMがそれぞれ、室内機本体10から突出することにより、サージングが発生し難くなり、空調運転停止中に可動側壁26SM及び可動下壁26LMがそれぞれ、室内機本体10に収納されることにより、室内機1の美観が向上する。
(2-2) The indoor unit 1 is in a projecting state in which the movable side wall 26SM and the movable lower wall 26LM are projected from the outlet 17 during the air conditioning operation, and the movable side wall 26SM and the movable lower wall 26LM are respectively disposed during the air conditioning operation stop. A moving mechanism 29 is provided in a storage state that does not protrude from the air outlet 17. According to this configuration, the movable side wall 26SM and the movable lower wall 26LM protrude from the indoor unit body 10 during the air conditioning operation, so that surging is less likely to occur. Each of the 26LMs is housed in the indoor unit body 10, so that the beauty of the indoor unit 1 is improved.
(第3実施形態)
図7及び図8を参照して、第3実施形態の空気調和機の室内機1について説明する。本実施形態の室内機1は、第2実施形態の室内機1と比較して、吹出流路26の両側壁26S及び下壁26Lとともに上壁26Uを空調運転中において吹出口17から突出させる点が異なる。以下の説明において、第2実施形態の室内機1と共通の構成要素については同じ符号を付し、その説明を省略する場合がある。 (Third embodiment)
With reference to FIG.7 and FIG.8, theindoor unit 1 of the air conditioner of 3rd Embodiment is demonstrated. Compared with the indoor unit 1 of the second embodiment, the indoor unit 1 of the present embodiment causes the upper wall 26U together with the side walls 26S and the lower wall 26L of the outlet channel 26 to protrude from the outlet 17 during the air conditioning operation. Is different. In the following description, the same reference numerals are assigned to components common to the indoor unit 1 of the second embodiment, and the description thereof may be omitted.
図7及び図8を参照して、第3実施形態の空気調和機の室内機1について説明する。本実施形態の室内機1は、第2実施形態の室内機1と比較して、吹出流路26の両側壁26S及び下壁26Lとともに上壁26Uを空調運転中において吹出口17から突出させる点が異なる。以下の説明において、第2実施形態の室内機1と共通の構成要素については同じ符号を付し、その説明を省略する場合がある。 (Third embodiment)
With reference to FIG.7 and FIG.8, the
本実施形態の上壁26Uは、固定上壁26UF及び可動上壁26UMを含む。固定上壁26UF及び可動上壁26UMは、縦方向(上下方向)において互いに重ね合わせられるように設けられている。可動上壁26UMは、固定上壁26UFに対してスライドして吹出口17から突出するように移動可能である。
The upper wall 26U of the present embodiment includes a fixed upper wall 26UF and a movable upper wall 26UM. The fixed upper wall 26UF and the movable upper wall 26UM are provided so as to overlap each other in the vertical direction (vertical direction). The movable upper wall 26UM is movable so as to slide with respect to the fixed upper wall 26UF and protrude from the outlet 17.
移動機構29は、可動側壁26SM、可動下壁26LM、及び可動上壁26UMをそれぞれ移動させるように構成されている。一例では、移動機構29は、可動側壁26SMを固定側壁26SFに対してスライドして移動させる機能と、可動下壁26LMを固定下壁26LFに対してスライドして移動させる機能と、可動上壁26UMを固定上壁26UFに対してスライドして移動させる機能とを有する。移動機構29は、第1モータと、第1モータの回転を可動側壁26SMの直進運動に変換する第1回転直進変換機構と、第1モータの回転を可動下壁26LMの直進運動に変換する第2回転直進変換機構と、第1モータの回転を可動上壁26UMの直進運動に変換する第3回転直進変換機構とを備える。すなわち本実施形態の移動機構29は、1つの駆動源で可動側壁26SM、可動下壁26LM、及び可動上壁26UMをそれぞれ移動させる。
The moving mechanism 29 is configured to move the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM, respectively. In one example, the moving mechanism 29 has a function of sliding and moving the movable side wall 26SM with respect to the fixed side wall 26SF, a function of sliding and moving the movable lower wall 26LM with respect to the fixed lower wall 26LF, and a movable upper wall 26UM. Has a function of sliding and moving with respect to the fixed upper wall 26UF. The moving mechanism 29 includes a first motor, a first rotation / straight-line conversion mechanism that converts rotation of the first motor into linear movement of the movable side wall 26SM, and a first motor that converts rotation of the first motor into linear movement of the movable lower wall 26LM. A two-rotation linear conversion mechanism and a third rotation / linear conversion mechanism that converts the rotation of the first motor into the linear movement of the movable upper wall 26UM. That is, the moving mechanism 29 of the present embodiment moves the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM, respectively, with one drive source.
本実施形態の室内制御部30(図3参照)は、図7(a)及び図8(a)に示すように、可動側壁26SM、可動下壁26LM、及び可動上壁26UMがそれぞれ吹出口17から突出していない収納状態と、図7(b)及び図8(b)に示すように、可動側壁26SM、可動下壁26LM、及び可動上壁26UMがそれぞれ吹出口17から突出した突出状態とを切り替えるように移動機構29を制御する。一例では、室内制御部30は、空調運転中において突出状態となるように移動機構29を制御し、空調運転停止中において収納状態となるように移動機構29を制御する。
As shown in FIGS. 7 (a) and 8 (a), the indoor control unit 30 (see FIG. 3) of the present embodiment includes a movable side wall 26SM, a movable lower wall 26LM, and a movable upper wall 26UM, respectively. 7B and FIG. 8B, the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM are each projected from the outlet 17 as shown in FIGS. The moving mechanism 29 is controlled to be switched. In one example, the indoor control unit 30 controls the moving mechanism 29 so as to be in the protruding state during the air conditioning operation, and controls the moving mechanism 29 so as to be in the stored state when the air conditioning operation is stopped.
本実施形態では、図7(b)及び図8(b)に示すとおり、突出状態において、可動側壁26SMは、可動下壁26LM及び可動上壁26UMの縦方向(上下方向)の全体を覆うように構成されている。具体的には、可動側壁26SMは、突出状態において、可動下壁26LM及び可動上壁26UMの左右方向の端部において可動下壁26LMと可動上壁26UMとの上下方向の間に位置する。可動側壁26SMは、可動側壁26SMと可動下壁26LMとの上下方向の間に隙間が形成されないように設けられる。また、可動側壁26SMは、可動上壁26UMと可動下壁26LMとの間において回転軸C2まわりで回動可能である。
In the present embodiment, as shown in FIGS. 7B and 8B, in the protruding state, the movable side wall 26SM covers the entire vertical direction (vertical direction) of the movable lower wall 26LM and the movable upper wall 26UM. It is configured. Specifically, the movable side wall 26SM is positioned between the movable lower wall 26LM and the movable upper wall 26UM in the vertical direction at the left and right ends of the movable lower wall 26LM and the movable upper wall 26UM in the protruding state. The movable side wall 26SM is provided such that no gap is formed between the movable side wall 26SM and the movable lower wall 26LM in the vertical direction. Further, the movable side wall 26SM is rotatable around the rotation axis C2 between the movable upper wall 26UM and the movable lower wall 26LM.
また、本実施形態のクロスフローファン23の羽根車25の外径D及び室内機本体10の高さHの関係は、第1実施形態のクロスフローファン23の羽根車25の外径D及び室内機本体10の高さHの関係と同じである。
The relationship between the outer diameter D of the impeller 25 of the crossflow fan 23 and the height H of the indoor unit body 10 of the present embodiment is the same as the outer diameter D of the impeller 25 of the crossflow fan 23 of the first embodiment and the room. This is the same as the relationship of the height H of the machine body 10.
本実施形態によれば、第1及び第2実施形態の効果に加え、以下の効果が得られる。
(3-1)両側壁26Sの可動側壁26SM、下壁26Lの可動下壁26LM、及び上壁26Uの可動上壁26UMはそれぞれ、少なくとも空調運転中に吹出口17から突出するように設けられている。この構成によれば、左右方向及び上下方向を壁部で囲まれた吹出流路26を吹出口17から延長することができる。これにより、両側壁26S、下壁26L、及び上壁26Uが吹出口17から突出しない構成と比較して、ディフューザの機能を有する吹出流路26が長くなるため、吹出流路26の静圧をより上昇させることができ、吹出流路26における風量をより増加させることができる。また室内機本体10の通風抵抗(機内圧損)が高くなる場合に、吹出口17の左右方向の両端部、上端部、及び下端部から室内空気が逆流することをそれぞれ抑制できるため、サージングがより発生し難くなる。 According to this embodiment, in addition to the effects of the first and second embodiments, the following effects can be obtained.
(3-1) The movable side wall 26SM of the bothside walls 26S, the movable lower wall 26LM of the lower wall 26L, and the movable upper wall 26UM of the upper wall 26U are provided so as to protrude from the air outlet 17 at least during air conditioning operation. Yes. According to this structure, the blowout flow path 26 surrounded by the wall portion in the left-right direction and the vertical direction can be extended from the blowout port 17. As a result, compared to the configuration in which the side walls 26S, the lower wall 26L, and the upper wall 26U do not protrude from the blowout port 17, the blowout flow channel 26 having the function of a diffuser becomes longer. It is possible to further increase the air volume in the blowout flow path 26. In addition, when the ventilation resistance (internal pressure loss) of the indoor unit body 10 is increased, it is possible to suppress the backflow of room air from both the left and right end portions, the upper end portion, and the lower end portion of the air outlet 17 respectively. It becomes difficult to occur.
(3-1)両側壁26Sの可動側壁26SM、下壁26Lの可動下壁26LM、及び上壁26Uの可動上壁26UMはそれぞれ、少なくとも空調運転中に吹出口17から突出するように設けられている。この構成によれば、左右方向及び上下方向を壁部で囲まれた吹出流路26を吹出口17から延長することができる。これにより、両側壁26S、下壁26L、及び上壁26Uが吹出口17から突出しない構成と比較して、ディフューザの機能を有する吹出流路26が長くなるため、吹出流路26の静圧をより上昇させることができ、吹出流路26における風量をより増加させることができる。また室内機本体10の通風抵抗(機内圧損)が高くなる場合に、吹出口17の左右方向の両端部、上端部、及び下端部から室内空気が逆流することをそれぞれ抑制できるため、サージングがより発生し難くなる。 According to this embodiment, in addition to the effects of the first and second embodiments, the following effects can be obtained.
(3-1) The movable side wall 26SM of the both
(3-2)室内機1は、空調運転中において可動側壁26SM、可動下壁26LM、及び可動上壁26UMをそれぞれ吹出口17から突出させた突出状態になり、空調運転停止中において可動側壁26SM、可動下壁26LM、及び可動上壁26UMをそれぞれ吹出口17から突出させない収納状態になる移動機構29を備える。この構成によれば、空調運転中において可動側壁26SM、可動下壁26LM、及び可動上壁26UMがそれぞれ、室内機本体10から突出することにより、サージングが発生し難くなる。また、空調運転停止中に可動側壁26SM、可動下壁26LM、及び可動上壁26UMがそれぞれ、室内機本体10に収納されることにより、室内機1の美観が向上する。
(3-2) The indoor unit 1 is in a protruding state in which the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM protrude from the outlet 17 during the air conditioning operation, and the movable side wall 26SM is stopped during the air conditioning operation stop. The movable lower wall 26LM and the movable upper wall 26UM are each provided with a moving mechanism 29 that is in a storage state in which the movable lower wall 26LM does not protrude from the air outlet 17. According to this configuration, during the air-conditioning operation, the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM protrude from the indoor unit main body 10, so that surging is less likely to occur. In addition, the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM are each housed in the indoor unit body 10 while the air conditioning operation is stopped, so that the aesthetics of the indoor unit 1 are improved.
(第4実施形態)
図9を参照して、第4実施形態の空気調和機の室内機1について説明する。本実施形態の室内機1は、第1実施形態の室内機1と比較して、クロスフローファン23の構成が異なる。以下の説明において、第1実施形態の室内機1と共通の構成要素については同じ符号を付し、その説明を省略する場合がある。 (Fourth embodiment)
With reference to FIG. 9, theindoor unit 1 of the air conditioner of 4th Embodiment is demonstrated. The indoor unit 1 of this embodiment differs in the structure of the crossflow fan 23 compared with the indoor unit 1 of 1st Embodiment. In the following description, the same reference numerals are given to components common to the indoor unit 1 of the first embodiment, and the description thereof may be omitted.
図9を参照して、第4実施形態の空気調和機の室内機1について説明する。本実施形態の室内機1は、第1実施形態の室内機1と比較して、クロスフローファン23の構成が異なる。以下の説明において、第1実施形態の室内機1と共通の構成要素については同じ符号を付し、その説明を省略する場合がある。 (Fourth embodiment)
With reference to FIG. 9, the
図9(a)(b)に示すように、室内機1は、クロスフローファン23の構成として、フラップ24を回転軸C1まわりに回動可能に支持する支持部32を有する。支持部32は、吹出口17付近における室内機本体10の下端部に取り付けられている。すなわち支持部32は、室内機本体10の下端部を構成していると言える。支持部32において吹出口17側の部分は、吹出流路26(下壁26L)の一部を構成している。支持部32は、吹出流路26を横断する方向において、上壁26Uにおける舌部26Aに対向している。
As shown in FIGS. 9A and 9B, the indoor unit 1 includes a support portion 32 that supports the flap 24 so as to be rotatable about the rotation axis C1 as a configuration of the cross flow fan 23. The support part 32 is attached to the lower end part of the indoor unit body 10 in the vicinity of the air outlet 17. That is, it can be said that the support portion 32 constitutes the lower end portion of the indoor unit body 10. A portion of the support portion 32 on the outlet 17 side constitutes a part of the outlet passage 26 (lower wall 26L). The support portion 32 faces the tongue portion 26 </ b> A on the upper wall 26 </ b> U in the direction crossing the blowout flow path 26.
図9(b)に示すように、上壁26Uにおける舌部26Aに内接する接線VLが、舌部26Aに対向する支持部32の流路形成面32Xと直交する場合の交点Aと、室内機本体10の下端を構成する点Bとの間の距離を距離Lと規定し、クロスフローファン23の羽根車25の外径を外径Dと規定する。本実施形態では、外径Dに対する距離Lの比(L/D)を0.05未満としている。ここで、点Bは、吹出流路26の下壁26Lのうちの最も下流側の部分である。また、本実施形態では、図9(b)に示すとおり、点Bは、支持部32の流路形成面32Xのうちの最下点となる。
As shown in FIG. 9B, the intersection A when the tangent line VL inscribed in the tongue 26A on the upper wall 26U is orthogonal to the flow path forming surface 32X of the support portion 32 facing the tongue 26A, and the indoor unit A distance from the point B constituting the lower end of the main body 10 is defined as a distance L, and an outer diameter of the impeller 25 of the cross flow fan 23 is defined as an outer diameter D. In the present embodiment, the ratio (L / D) of the distance L to the outer diameter D is less than 0.05. Here, the point B is the most downstream portion of the lower wall 26 </ b> L of the blowing channel 26. In the present embodiment, as shown in FIG. 9B, the point B is the lowest point of the flow path forming surface 32 </ b> X of the support portion 32.
本実施形態では、両側壁26Sから可動側壁26SMを省略している。また本実施形態では、移動機構29は、フラップ駆動用モータ28(図3参照)を含む。移動機構29は、吹出流路26を構成するフラップ24が吹出口17を覆う収納状態と、フラップ24が吹出口17から突出した突出状態とに変更可能に構成されている。移動機構29は、第1実施形態と同様に、空調運転中において突出状態になり、空調運転停止中において収納状態になる。すなわちフラップ24は、図9(a)の破線により示すように、空調運転停止中において、吹出口17を覆うように支持部32に対して回動する。一方、フラップ24は、図9(a)の実線により示すように、空調運転中において、吹出口17を開口するように支持部32に対して回動する。突出状態のフラップ24は、上壁26Uにおける流路形成面26Xと対向する。
In this embodiment, the movable side wall 26SM is omitted from the side walls 26S. In the present embodiment, the moving mechanism 29 includes a flap drive motor 28 (see FIG. 3). The moving mechanism 29 is configured to be changeable between a storage state in which the flap 24 constituting the blowout flow path 26 covers the blowout port 17 and a protruding state in which the flap 24 projects from the blowout port 17. Similar to the first embodiment, the moving mechanism 29 is in a protruding state during the air conditioning operation, and is in a retracted state when the air conditioning operation is stopped. That is, as shown by the broken line in FIG. 9A, the flap 24 rotates with respect to the support portion 32 so as to cover the air outlet 17 while the air conditioning operation is stopped. On the other hand, the flap 24 rotates with respect to the support portion 32 so as to open the air outlet 17 during the air conditioning operation, as indicated by the solid line in FIG. The protruding flap 24 faces the flow path forming surface 26X on the upper wall 26U.
本実施形態によれば、以下の効果が得られる。
(4-1)吹出流路26の下壁を構成するフラップ24が、少なくとも空調運転中において吹出口17から突出するように構成されている。またクロスフローファン23の羽根車25の外径Dに対する、クロスフローファン23の舌部26Aに内接する接線VLから室内機本体10の下端を構成する点Bに至る距離Lの比(L/D)が0.05未満である。この構成によれば、室内機本体10の設置容易性の低下を抑制するとともに、クロスフローファン23の羽根車25の外径Dを大きくすることによって低電力及び低騒音を実現できる。そしてフラップ24が吹出口17から突出することにより、吹出流路26のディフューザの長さを確保できる。このため、ディフューザの機能の低下を抑制できる。したがって、室内機1の性能の低下を抑制できる。 According to the present embodiment, the following effects can be obtained.
(4-1) Theflap 24 constituting the lower wall of the blowout flow path 26 is configured to protrude from the blowout port 17 at least during the air conditioning operation. Further, the ratio of the distance L from the tangent line VL inscribed in the tongue portion 26A of the crossflow fan 23 to the outer diameter D of the impeller 25 of the crossflow fan 23 to the point B constituting the lower end of the indoor unit body 10 (L / D ) Is less than 0.05. According to this configuration, it is possible to achieve low power and low noise by suppressing the decrease in the ease of installation of the indoor unit body 10 and increasing the outer diameter D of the impeller 25 of the crossflow fan 23. And since the flap 24 protrudes from the blower outlet 17, the length of the diffuser of the blower flow path 26 is securable. For this reason, a decline in the function of the diffuser can be suppressed. Therefore, a decrease in the performance of the indoor unit 1 can be suppressed.
(4-1)吹出流路26の下壁を構成するフラップ24が、少なくとも空調運転中において吹出口17から突出するように構成されている。またクロスフローファン23の羽根車25の外径Dに対する、クロスフローファン23の舌部26Aに内接する接線VLから室内機本体10の下端を構成する点Bに至る距離Lの比(L/D)が0.05未満である。この構成によれば、室内機本体10の設置容易性の低下を抑制するとともに、クロスフローファン23の羽根車25の外径Dを大きくすることによって低電力及び低騒音を実現できる。そしてフラップ24が吹出口17から突出することにより、吹出流路26のディフューザの長さを確保できる。このため、ディフューザの機能の低下を抑制できる。したがって、室内機1の性能の低下を抑制できる。 According to the present embodiment, the following effects can be obtained.
(4-1) The
(4-2)室内機1は、空調運転中においてフラップ24を吹出口17から突出させた突出状態とし、空調運転停止中においてフラップ24を吹出口17から突出させない収納状態とする移動機構29を備える。この構成によれば、空調運転中においてフラップ24が室内機本体10から突出することにより、サージングが発生し難くなる。また、空調運転停止中にフラップ24が室内機本体10に収納されることにより、室内機1の美観が向上する。
(4-2) The indoor unit 1 is provided with a moving mechanism 29 in which the flap 24 is protruded from the outlet 17 during the air conditioning operation, and in the retracted state in which the flap 24 is not protruded from the outlet 17 during the air conditioning operation stop. Prepare. According to this configuration, surging is unlikely to occur when the flap 24 protrudes from the indoor unit body 10 during the air conditioning operation. Further, the aesthetic appearance of the indoor unit 1 is improved by storing the flap 24 in the indoor unit body 10 while the air conditioning operation is stopped.
(変形例)
上記各実施形態に関する説明は、本開示に従う空気調和機の室内機が取り得る形態の例示であり、その形態を制限することを意図していない。本開示に従う空気調和機の室内機は、例えば以下に示される上記各実施形態の変形例、及び相互に矛盾しない少なくとも2つの変形例が組み合わせられた形態を取り得る。以下の変形例において、上記各実施形態の形態と共通する部分については、上記各実施形態と同一の符号を付してその説明を省略する。 (Modification)
The description regarding each said embodiment is an illustration of the form which the indoor unit of the air conditioner according to this indication can take, and it does not intend restrict | limiting the form. The indoor unit of an air conditioner according to the present disclosure may take a form in which, for example, the modifications of the above-described embodiments described below and at least two modifications not inconsistent with each other are combined. In the following modifications, the same reference numerals as those in the above embodiments are assigned to portions common to those in the above embodiments, and the description thereof is omitted.
上記各実施形態に関する説明は、本開示に従う空気調和機の室内機が取り得る形態の例示であり、その形態を制限することを意図していない。本開示に従う空気調和機の室内機は、例えば以下に示される上記各実施形態の変形例、及び相互に矛盾しない少なくとも2つの変形例が組み合わせられた形態を取り得る。以下の変形例において、上記各実施形態の形態と共通する部分については、上記各実施形態と同一の符号を付してその説明を省略する。 (Modification)
The description regarding each said embodiment is an illustration of the form which the indoor unit of the air conditioner according to this indication can take, and it does not intend restrict | limiting the form. The indoor unit of an air conditioner according to the present disclosure may take a form in which, for example, the modifications of the above-described embodiments described below and at least two modifications not inconsistent with each other are combined. In the following modifications, the same reference numerals as those in the above embodiments are assigned to portions common to those in the above embodiments, and the description thereof is omitted.
・上記第1~第3実施形態において、吹出流路26を構成する両側壁26S、下壁26L、及び上壁26Uの少なくとも一つが可動壁及び固定壁を有する構成であればよい。より詳細には、室内機1は、次の(A1)~(A4)のいずれかの構成を有してもよい。
In the first to third embodiments, it is sufficient that at least one of the side walls 26S, the lower wall 26L, and the upper wall 26U constituting the blowing channel 26 has a movable wall and a fixed wall. More specifically, the indoor unit 1 may have any of the following configurations (A1) to (A4).
(A1)室内機1は、吹出流路26を構成する両側壁26Sが可動側壁26SMを有し、上壁26Uが可動上壁26UMを有し、下壁26Lが可動下壁26LMを有していない構成を有する。この構成によれば、可動側壁26SM及び可動上壁26UMが吹出口17よりも突出することにより、吹出口17から吹き出される室内空気が可動側壁26SM及び可動上壁26UMによって吹出口17から左右方向及び上方に流れることが規制されるため、吹出流路26を吹出口17から延長することができる。これにより、両側壁26S及び上壁26Uが吹出口17から突出しない構成と比較して、ディフューザの機能を有する吹出流路26が長くなるため、吹出流路26の静圧をより上昇させることができ、吹出流路26における風量をより増加させることができる。また室内機本体10の通風抵抗(機内圧損)が高くなる場合に、吹出口17の左右方向の両端部及び上方からの空気の逆流をそれぞれ抑制できるため、サージングがより発生し難くなる。
(A1) In the indoor unit 1, both side walls 26S constituting the blowout flow path 26 have a movable side wall 26SM, an upper wall 26U has a movable upper wall 26UM, and a lower wall 26L has a movable lower wall 26LM. Has no configuration. According to this configuration, the movable side wall 26SM and the movable upper wall 26UM protrude from the blower outlet 17, so that the indoor air blown from the blower outlet 17 is laterally moved from the blower outlet 17 by the movable sidewall 26SM and the movable upper wall 26UM. Further, since the upward flow is restricted, the blowout flow path 26 can be extended from the blowout port 17. Thereby, compared to the configuration in which the side walls 26S and the upper wall 26U do not protrude from the blowout port 17, the blowout flow channel 26 having the function of the diffuser becomes longer, so that the static pressure of the blowout flow channel 26 can be further increased. It is possible to increase the air volume in the blowout flow path 26. Further, when the ventilation resistance (internal pressure loss) of the indoor unit main body 10 is increased, the backflow of air from both the left and right ends of the blower outlet 17 and from the upper side can be suppressed, so that surging is less likely to occur.
(A2)室内機1は、吹出流路26を構成する下壁26Lが可動下壁26LMを有し、上壁26Uが可動上壁26UMを有し、両側壁26Sが可動側壁26SMを有していない構成を有する。この構成によれば、可動下壁26LMが吹出口17よりも突出することにより、吹出口17から吹き出される室内空気が可動下壁26LMによって吹出口17から下方に流れることが規制されるため、吹出流路26を吹出口17から延長することができる。これにより、下壁26Lが吹出口17から突出しない構成と比較して、ディフューザの機能を有する吹出流路26が長くなるため、吹出流路26の静圧をより上昇させることができ、吹出流路26における風量をより増加させることができる。また室内機本体10の通風抵抗(機内圧損)が高くなる場合に、吹出口17の下方からの空気の逆流を抑制できるため、サージングがより発生し難くなる。
(A2) In the indoor unit 1, the lower wall 26L constituting the blowout flow path 26 has a movable lower wall 26LM, the upper wall 26U has a movable upper wall 26UM, and both side walls 26S have a movable side wall 26SM. Has no configuration. According to this configuration, since the movable lower wall 26LM protrudes from the blowout port 17, the indoor air blown from the blowout port 17 is restricted from flowing downward from the blowout port 17 by the movable lower wall 26LM. The outlet channel 26 can be extended from the outlet 17. Thereby, compared with the structure which the lower wall 26L does not protrude from the blower outlet 17, since the blowing flow path 26 which has a function of a diffuser becomes long, the static pressure of the blowing flow path 26 can be raised more, and a blowing flow The air volume in the path 26 can be further increased. Further, when the ventilation resistance (internal pressure loss) of the indoor unit main body 10 becomes high, the backflow of air from below the blower outlet 17 can be suppressed, so surging is less likely to occur.
(A3)室内機1は、吹出流路26を構成する下壁26Lが可動下壁26LMを有し、両側壁26Sが可動側壁26SMを有しておらず、上壁26Uが可動上壁26UMを有していない構成を有する。この構成によれば、可動下壁26LMが吹出口17よりも突出することにより、吹出口17から吹き出される室内空気が可動下壁26LMによって吹出口17から下方に流れることが規制されるため、吹出流路26を吹出口17から延長することができる。これにより、下壁26Lが吹出口17から突出しない構成と比較して、ディフューザの機能を有する吹出流路26が長くなるため、吹出流路26の静圧をより上昇させることができ、吹出流路26における風量をより増加させることができる。また室内機本体10の通風抵抗(機内圧損)が高くなる場合に、吹出口17の下方からの空気の逆流を抑制できるため、サージングがより発生し難くなる。
(A3) In the indoor unit 1, the lower wall 26L constituting the blowout flow path 26 has the movable lower wall 26LM, the side walls 26S do not have the movable side wall 26SM, and the upper wall 26U has the movable upper wall 26UM. It has a configuration that it does not have. According to this configuration, since the movable lower wall 26LM protrudes from the blowout port 17, the indoor air blown from the blowout port 17 is restricted from flowing downward from the blowout port 17 by the movable lower wall 26LM. The outlet channel 26 can be extended from the outlet 17. Thereby, compared with the structure which the lower wall 26L does not protrude from the blower outlet 17, since the blowing flow path 26 which has a function of a diffuser becomes long, the static pressure of the blowing flow path 26 can be raised more, and a blowing flow The air volume in the path 26 can be further increased. Further, when the ventilation resistance (internal pressure loss) of the indoor unit main body 10 becomes high, the backflow of air from below the blower outlet 17 can be suppressed, so surging is less likely to occur.
(A4)室内機1は、吹出流路26を構成する上壁26Uが可動上壁26UMを有し、両側壁26Sが可動側壁26SMを有しておらず、下壁26Lが可動下壁26LMを有していない構成を有する。この構成によれば、可動上壁26UMが吹出口17よりも突出することにより、吹出口17から吹き出される室内空気が可動上壁26UMによって吹出口17から上方に流れることが規制されるため、吹出流路26を吹出口17から延長することができる。これにより、上壁26Uが吹出口17から突出しない構成と比較して、ディフューザの機能を有する吹出流路26が長くなるため、吹出流路26の静圧をより上昇させることができ、吹出流路26における風量をより増加させることができる。また室内機本体10の通風抵抗(機内圧損)が高くなる場合に、吹出口17の上方からの空気の逆流を抑制できるため、サージングがより発生し難くなる。
(A4) In the indoor unit 1, the upper wall 26U constituting the blowout flow path 26 has the movable upper wall 26UM, the side walls 26S do not have the movable side wall 26SM, and the lower wall 26L has the movable lower wall 26LM. It has a configuration that it does not have. According to this configuration, since the movable upper wall 26UM protrudes from the blowout port 17, the indoor air blown from the blowout port 17 is restricted from flowing upward from the blowout port 17 by the movable upper wall 26UM. The outlet channel 26 can be extended from the outlet 17. Thereby, compared with the structure which the upper wall 26U does not protrude from the blower outlet 17, since the blower flow path 26 which has a function of a diffuser becomes long, the static pressure of the blower flow path 26 can be raised more, and a blowout flow The air volume in the path 26 can be further increased. Moreover, since the backflow of the air from the upper direction of the blower outlet 17 can be suppressed when the ventilation resistance (internal pressure loss) of the indoor unit main body 10 becomes high, surging is less likely to occur.
・上記第1~第3実施形態において、両側壁26Sは、次の(B1)~(B3)の構成のように変更してもよい。
(B1)図10(a)(b)に示すように、両側壁26Sは、回転軸C3を中心に扇状に広がる形状を有する可動側壁26SMを有する。移動機構29は、可動側壁26SMを回転軸C3まわりに回転させる駆動用モータを有する。駆動用モータの出力軸は、可動側壁26SMに直接的に接続されてもよいし、減速機を介して可動側壁26SMに接続されてもよい。移動機構29は、図10(a)に示す収納状態と、図10(b)に示す突出状態とを切り替えるように可動側壁26SMを移動させる。図10(a)に示すように、収納状態では、可動側壁26SMは、室内機本体10内に収納された状態、すなわち吹出口17から突出していない状態にある。図10(b)に示すように、突出状態では、可動側壁26SMは、室内機本体10から突出した状態、すなわち吹出口17から突出した状態にある。図10(a)(b)の可動側壁26SMは、横方向(左右方向)においてフラップ24の端面と隣り合うように設けられている。ここで、可動側壁26SMとフラップ24の左右方向の端面との間に隙間が形成されていないことが好ましい。 In the first to third embodiments, theside walls 26S may be modified as in the following configurations (B1) to (B3).
(B1) As shown in FIGS. 10A and 10B, theside walls 26S have movable side walls 26SM having a fan-like shape centering on the rotation axis C3. The moving mechanism 29 has a drive motor that rotates the movable side wall 26SM around the rotation axis C3. The output shaft of the drive motor may be directly connected to the movable side wall 26SM, or may be connected to the movable side wall 26SM via a reduction gear. The moving mechanism 29 moves the movable side wall 26SM so as to switch between the storage state shown in FIG. 10A and the protruding state shown in FIG. As shown in FIG. 10A, in the housed state, the movable side wall 26SM is housed in the indoor unit body 10, that is, in a state where it does not protrude from the air outlet 17. As shown in FIG. 10B, in the protruding state, the movable side wall 26SM is in a state of protruding from the indoor unit body 10, that is, in a state of protruding from the air outlet 17. 10A and 10B is provided so as to be adjacent to the end surface of the flap 24 in the lateral direction (left-right direction). Here, it is preferable that no gap is formed between the movable side wall 26SM and the end face of the flap 24 in the left-right direction.
(B1)図10(a)(b)に示すように、両側壁26Sは、回転軸C3を中心に扇状に広がる形状を有する可動側壁26SMを有する。移動機構29は、可動側壁26SMを回転軸C3まわりに回転させる駆動用モータを有する。駆動用モータの出力軸は、可動側壁26SMに直接的に接続されてもよいし、減速機を介して可動側壁26SMに接続されてもよい。移動機構29は、図10(a)に示す収納状態と、図10(b)に示す突出状態とを切り替えるように可動側壁26SMを移動させる。図10(a)に示すように、収納状態では、可動側壁26SMは、室内機本体10内に収納された状態、すなわち吹出口17から突出していない状態にある。図10(b)に示すように、突出状態では、可動側壁26SMは、室内機本体10から突出した状態、すなわち吹出口17から突出した状態にある。図10(a)(b)の可動側壁26SMは、横方向(左右方向)においてフラップ24の端面と隣り合うように設けられている。ここで、可動側壁26SMとフラップ24の左右方向の端面との間に隙間が形成されていないことが好ましい。 In the first to third embodiments, the
(B1) As shown in FIGS. 10A and 10B, the
(B2)図11(a)(b)に示すように、両側壁26Sは、回転軸C4まわりに回転する可動側壁26SMを有する。移動機構29は、可動側壁26SMを回転軸C4まわりに回転させる駆動用モータを有する。駆動用モータの出力軸は、可動側壁26SMに直接的に接続されてもよいし、減速機を介して可動側壁26SMに接続されてもよい。移動機構29は、図11(a)に示す収納状態と、図11(b)に示す突出状態とを切り替えるように可動側壁26SMを移動させる。図11(a)に示すように、収納状態では、可動側壁26SMは、吹出口17の横方向(左右方向)の端部を覆う状態、すなわち吹出口17から突出していない状態である。収納状態では、フラップ駆動用モータ28(図3参照)によってフラップ24が吹出口17を覆うように移動している。収納状態では、可動側壁26SMは、フラップ24の横方向(左右方向)の端部を覆うように回転する。図11(b)に示すように、突出状態では、可動側壁26SMは、室内機本体10から突出した状態、すなわち吹出口17から突出した状態である。一例では、収納状態から突出状態に変更する場合、可動側壁26SMが回動してフラップ24よりも横方向(左右方向)の外側に移動した後にフラップ24が吹出口17から突出するように回動する。
(B2) As shown in FIGS. 11A and 11B, the side walls 26S have movable side walls 26SM that rotate about the rotation axis C4. The moving mechanism 29 has a drive motor that rotates the movable side wall 26SM around the rotation axis C4. The output shaft of the drive motor may be directly connected to the movable side wall 26SM, or may be connected to the movable side wall 26SM via a reduction gear. The moving mechanism 29 moves the movable side wall 26SM so as to switch between the storage state shown in FIG. 11A and the protruding state shown in FIG. As shown to Fig.11 (a), in the accommodation state, movable side wall 26SM is the state which covers the edge part of the horizontal direction (left-right direction) of the blower outlet 17, ie, the state which does not protrude from the blower outlet 17. As shown in FIG. In the stored state, the flap 24 is moved so as to cover the outlet 17 by the flap driving motor 28 (see FIG. 3). In the stored state, the movable side wall 26SM rotates so as to cover the end portion of the flap 24 in the lateral direction (left-right direction). As shown in FIG. 11B, in the protruding state, the movable side wall 26SM is in a state of protruding from the indoor unit body 10, that is, in a state of protruding from the air outlet 17. In one example, when changing from the stowed state to the protruding state, the movable side wall 26SM rotates and rotates so that the flap 24 protrudes from the outlet 17 after moving to the outside in the lateral direction (left and right direction) from the flap 24. To do.
(B3)図12(a)(b)に示すように、両側壁26Sは、伸縮自在の可動側壁26SMを有する。この可動側壁26SMは、蛇腹構造により構成されている。移動機構29は、駆動源となるモータと、モータの回転をモータの回転を可動側壁26SMの伸縮方向の直進運動に変換する回転直進変換機構とを有する。移動機構29は、図12(a)に示す収納状態と、図12(b)に示す突出状態とを切り替えるように可動側壁26SMを移動させる。図12(a)に示すように、収納状態では、可動側壁26SMは、収縮することによって室内機本体10に収納された状態、すなわち吹出口17から突出していない状態である。図12(b)に示すように、突出状態では、伸長することによって室内機本体10から突出した状態、すなわち吹出口17から突出した状態である。図12(a)(b)の可動側壁26SMは、横方向(左右方向)においてフラップ24と隣り合うように設けられている。ここで、可動側壁26SMとフラップ24の左右方向の端面との間に隙間が形成されていないことが好ましい。
(B3) As shown in FIGS. 12 (a) and 12 (b), the side walls 26S have telescopic movable side walls 26SM. The movable side wall 26SM has a bellows structure. The moving mechanism 29 includes a motor serving as a drive source and a rotation / straight-ahead conversion mechanism that converts the rotation of the motor into a rectilinear movement in the expansion / contraction direction of the movable side wall 26SM. The moving mechanism 29 moves the movable side wall 26SM so as to switch between the storage state shown in FIG. 12A and the protruding state shown in FIG. As shown in FIG. 12A, in the housed state, the movable side wall 26SM is housed in the indoor unit body 10 by contracting, that is, not protruding from the outlet 17. As shown in FIG. 12 (b), the protruding state is a state of protruding from the indoor unit body 10 by extending, that is, a state of protruding from the outlet 17. The movable side wall 26SM of FIGS. 12A and 12B is provided so as to be adjacent to the flap 24 in the lateral direction (left-right direction). Here, it is preferable that no gap is formed between the movable side wall 26SM and the end face of the flap 24 in the left-right direction.
・上記第1~第3実施形態において、可動側壁26SMは、回転軸C2まわりで回転しない構成であってもよい。この場合、可動側壁26SMは、吹出流路26の下流側に向かうにつれて両可動側壁26SMの左右方向の間の距離が小さくなるように構成されてもよい。
In the first to third embodiments, the movable side wall 26SM may be configured not to rotate around the rotation axis C2. In this case, the movable side wall 26SM may be configured such that the distance between the left and right directions of both the movable side walls 26SM becomes smaller toward the downstream side of the blowout flow path 26.
・上記第2及び第3実施形態において、下壁26Lの可動下壁26LMは、図13(a)(b)に示すように、室内機本体10の下端部となる固定下壁26LFの先端部に対して回転軸C5まわりに回動可能に設けられてもよい。フラップ24は、可動下壁26LMの先端部に対して回動可能に設けられている。図13(a)に示すように、移動機構29は、空調運転停止中において、収納状態として可動下壁26LMを吹出口17を覆うように回動させる。この場合、吹出口17は、可動下壁26LM及びフラップ24によって覆われる。図13(b)に示すように、移動機構29は、空調運転中において、突出状態として可動下壁26LMを吹出口17から突出するように回動させる。この場合、吹出口17は、可動下壁26LM及びフラップ24によって覆われない。フラップ24は、突出状態において、フラップ駆動用モータ28(図3参照)によって可動下壁26LMに対する回動位置を任意に変更することができる。
In the second and third embodiments, the movable lower wall 26LM of the lower wall 26L is, as shown in FIGS. 13A and 13B, the distal end portion of the fixed lower wall 26LF that is the lower end portion of the indoor unit body 10. However, it may be provided so as to be rotatable around the rotation axis C5. The flap 24 is provided so as to be rotatable with respect to the distal end portion of the movable lower wall 26LM. As illustrated in FIG. 13A, the moving mechanism 29 rotates the movable lower wall 26 </ b> LM so as to cover the air outlet 17 in the housed state while the air conditioning operation is stopped. In this case, the air outlet 17 is covered by the movable lower wall 26LM and the flap 24. As illustrated in FIG. 13B, the moving mechanism 29 rotates the movable lower wall 26 </ b> LM so as to protrude from the air outlet 17 as a protruding state during the air conditioning operation. In this case, the air outlet 17 is not covered by the movable lower wall 26LM and the flap 24. In the protruding state, the flap 24 can arbitrarily change the rotation position with respect to the movable lower wall 26LM by the flap driving motor 28 (see FIG. 3).
・上記第3実施形態において、上壁26Uの可動上壁26UMは、図14(a)(b)に示すように、固定上壁26UFの先端部に対して回転軸C6まわりに回転可能に設けられてもよい。図14(a)に示すように、移動機構29は、空調運転停止中において、収納状態として可動上壁26UMを吹出口17を覆うように回動させる。空調運転停止中では、フラップ駆動用モータ28(図3参照)によってフラップ24も吹出口17を覆う。このように、可動上壁26UM及びフラップ24によって吹出口17を全体的に覆う。図14(b)に示すように、移動機構29は、空調運転中において、突出状態として可動上壁26UMを吹出口17から突出するように回動させる。この場合、吹出口17は、可動上壁26UM及びフラップ24によって覆われない。
In the third embodiment, the movable upper wall 26UM of the upper wall 26U is provided so as to be rotatable around the rotation axis C6 with respect to the distal end portion of the fixed upper wall 26UF as shown in FIGS. 14 (a) and 14 (b). May be. As illustrated in FIG. 14A, the moving mechanism 29 rotates the movable upper wall 26 </ b> UM so as to cover the air outlet 17 in the housed state while the air conditioning operation is stopped. While the air conditioning operation is stopped, the flap 24 also covers the outlet 17 by the flap driving motor 28 (see FIG. 3). Thus, the blower outlet 17 is entirely covered by the movable upper wall 26UM and the flap 24. As illustrated in FIG. 14B, the moving mechanism 29 rotates the movable upper wall 26 </ b> UM so as to protrude from the air outlet 17 as a protruding state during the air conditioning operation. In this case, the air outlet 17 is not covered by the movable upper wall 26UM and the flap 24.
・上記第2実施形態において、移動機構29は、可動側壁26SMを移動させる第1移動機構と、可動下壁26LMを移動させる第2移動機構とを有してもよい。第1移動機構及び第2移動機構はそれぞれ、モータと、モータの回転を直進運動に変換する回転直進変換機構とを有する。これにより、可動側壁26SM及び可動下壁26LMを個別に制御することができる。
In the second embodiment, the moving mechanism 29 may include a first moving mechanism that moves the movable side wall 26SM and a second moving mechanism that moves the movable lower wall 26LM. Each of the first moving mechanism and the second moving mechanism includes a motor and a rotation / straight-line conversion mechanism that converts rotation of the motor into straight movement. Thereby, the movable side wall 26SM and the movable lower wall 26LM can be individually controlled.
・上記第2及び第3実施形態において、移動機構29は、サージングが発生した場合にフラップ24を回転させることにより、吹出流路26における吹出口17よりも下流側の断面積を小さくしてもよい。
In the second and third embodiments, the moving mechanism 29 may reduce the cross-sectional area downstream of the air outlet 17 in the outlet channel 26 by rotating the flap 24 when surging occurs. Good.
・上記第3実施形態において、移動機構29は、可動側壁26SMを移動させる第1移動機構と、可動下壁26LMを移動させる第2移動機構と、可動上壁26UMを移動させる第3移動機構とを有してもよい。第1~第3移動機構はそれぞれ、モータと、モータの回転を直進運動に変換する回転直進変換機構とを有する。これにより、可動側壁26SM、可動下壁26LM、及び可動上壁26UMを個別に制御することができる。
In the third embodiment, the moving mechanism 29 includes a first moving mechanism that moves the movable side wall 26SM, a second moving mechanism that moves the movable lower wall 26LM, and a third moving mechanism that moves the movable upper wall 26UM. You may have. Each of the first to third moving mechanisms includes a motor and a rotation / straight-line conversion mechanism that converts rotation of the motor into linear movement. Accordingly, the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM can be individually controlled.
・上記第3実施形態において、移動機構29は、可動側壁26SM及び可動下壁26LMを移動させる第1移動機構と、可動上壁26UMを移動させる第2移動機構とを有してもよい。第1移動機構及び第2移動機構はそれぞれ、モータと、モータの回転を直進運動に変換する回転直進変換機構とを有する。これにより、可動側壁26SM及び可動下壁26LMと、可動上壁26UMとを個別に制御することができる。
In the third embodiment, the moving mechanism 29 may include a first moving mechanism that moves the movable side wall 26SM and the movable lower wall 26LM, and a second moving mechanism that moves the movable upper wall 26UM. Each of the first moving mechanism and the second moving mechanism includes a motor and a rotation / straight-line conversion mechanism that converts rotation of the motor into straight movement. Thereby, the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM can be individually controlled.
・上記第3実施形態において、移動機構29は、可動側壁26SMを移動させる第1移動機構と、可動下壁26LM及び可動上壁26UMを移動させる第2移動機構とを有してもよい。第1移動機構及び第2移動機構はそれぞれ、モータと、モータの回転を直進運動に変換する回転直進変換機構とを有する。これにより、可動側壁26SMと、可動下壁26LM及び可動上壁26UMとを個別に制御することができる。
In the third embodiment, the moving mechanism 29 may include a first moving mechanism that moves the movable side wall 26SM and a second moving mechanism that moves the movable lower wall 26LM and the movable upper wall 26UM. Each of the first moving mechanism and the second moving mechanism includes a motor and a rotation / straight-line conversion mechanism that converts rotation of the motor into straight movement. Accordingly, the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM can be individually controlled.
・上記第3実施形態において、移動機構29は、可動側壁26SM及び可動上壁26UMを移動させる第1移動機構と、可動下壁26LMを移動させる第2移動機構とを有してもよい。第1移動機構及び第2移動機構はそれぞれ、モータと、モータの回転を直進運動に変換する回転直進変換機構とを有する。これにより、可動側壁26SM及び可動上壁26UMと、可動下壁26LMとを個別に制御することができる。
In the third embodiment, the moving mechanism 29 may include a first moving mechanism that moves the movable side wall 26SM and the movable upper wall 26UM, and a second moving mechanism that moves the movable lower wall 26LM. Each of the first moving mechanism and the second moving mechanism includes a motor and a rotation / straight-line conversion mechanism that converts rotation of the motor into straight movement. Thereby, the movable side wall 26SM, the movable upper wall 26UM, and the movable lower wall 26LM can be individually controlled.
・上記第3実施形態において、吹出流路26は、吹出口17から突出し、かつ吹出流路26における吹出口17よりも下流側の断面積が吹出口17の断面積よりも小さくなるように形成されてもよい。一例では、吹出流路26を構成する構成要素である可動側壁26SM、可動下壁26LM、及び可動上壁26UMによって囲まれた断面積が、吹出口17の断面積よりも小さくなるように、可動側壁26SM、可動下壁26LM、及び可動上壁26UMの少なくとも1つを移動機構29によって移動させる。これにより、吹出流路26の下流側における風速を高くすることができる。したがって、吹出口17からの室内空気の逆流を抑制できるため、サージングがより発生し難くなる。
In the third embodiment, the outlet channel 26 protrudes from the outlet 17 and is formed so that the sectional area of the outlet channel 26 on the downstream side of the outlet 17 is smaller than the sectional area of the outlet 17. May be. In one example, the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM, which are constituent elements of the blowout flow path 26, are movable so that the cross-sectional area surrounded by the blower outlet 17 is smaller than the cross-sectional area. At least one of the side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM is moved by the moving mechanism 29. Thereby, the wind speed in the downstream of the blowing flow path 26 can be made high. Therefore, since the backflow of the room air from the blower outlet 17 can be suppressed, surging is less likely to occur.
・上記第4実施形態において、室内機1は、次の(C1)~(C4)のように変更してもよい。
(C1)室内機1は、可動側壁26SMと、可動側壁26SMを移動させる移動機構29とをさらに備える。一例では、可動側壁26SM及び移動機構29は、第1実施形態の可動側壁26SM及び移動機構29と同じ構成である。この構成によれば、可動側壁26SMが吹出口17よりも突出することにより、吹出口17から吹き出される室内空気が可動側壁26SM及び可動上壁26UMによって吹出口17から左右方向に流れることが規制されるため、吹出流路26を吹出口17から延長することができる。これにより、両側壁26S及び上壁26Uが吹出口17から突出しない構成と比較して、吹出流路26が長くなるため、吹出流路26の静圧をより上昇させることができ、吹出流路26における風量をより増加させることができる。また室内機本体10の通風抵抗(機内圧損)が高くなる場合に、吹出口17の左右方向の両端部からの空気の逆流を抑制できるため、サージングがより発生し難くなる。 In the fourth embodiment, theindoor unit 1 may be changed as in the following (C1) to (C4).
(C1) Theindoor unit 1 further includes a movable side wall 26SM and a moving mechanism 29 that moves the movable side wall 26SM. In one example, the movable side wall 26SM and the moving mechanism 29 have the same configuration as the movable side wall 26SM and the moving mechanism 29 of the first embodiment. According to this configuration, the movable side wall 26SM protrudes from the blowout port 17 so that indoor air blown from the blowout port 17 is restricted from flowing in the left-right direction from the blowout port 17 by the movable side wall 26SM and the movable upper wall 26UM. Therefore, the blowout channel 26 can be extended from the blowout port 17. Thereby, compared with the structure in which the side walls 26S and the upper wall 26U do not protrude from the blowout port 17, the blowout flow channel 26 becomes longer, so that the static pressure of the blowout flow channel 26 can be further increased. The air volume at 26 can be further increased. Further, when the ventilation resistance (internal pressure loss) of the indoor unit main body 10 is increased, the backflow of air from both ends of the air outlet 17 in the left-right direction can be suppressed, so surging is less likely to occur.
(C1)室内機1は、可動側壁26SMと、可動側壁26SMを移動させる移動機構29とをさらに備える。一例では、可動側壁26SM及び移動機構29は、第1実施形態の可動側壁26SM及び移動機構29と同じ構成である。この構成によれば、可動側壁26SMが吹出口17よりも突出することにより、吹出口17から吹き出される室内空気が可動側壁26SM及び可動上壁26UMによって吹出口17から左右方向に流れることが規制されるため、吹出流路26を吹出口17から延長することができる。これにより、両側壁26S及び上壁26Uが吹出口17から突出しない構成と比較して、吹出流路26が長くなるため、吹出流路26の静圧をより上昇させることができ、吹出流路26における風量をより増加させることができる。また室内機本体10の通風抵抗(機内圧損)が高くなる場合に、吹出口17の左右方向の両端部からの空気の逆流を抑制できるため、サージングがより発生し難くなる。 In the fourth embodiment, the
(C1) The
(C2)室内機1は、可動下壁26LMと、可動下壁26LMを移動させる移動機構29とをさらに備える。一例では、可動下壁26LM及び移動機構29は、第2実施形態の可動下壁26LM及び移動機構29と同じ構成である。この場合、フラップ24は、可動下壁26LMの先端部に回転可能に設けられる。この構成によれば、可動下壁26LMが吹出口17よりも突出することにより、吹出口17から吹き出される室内空気が可動下壁26LMによって吹出口17から下方に流れることが規制されるため、吹出流路26を吹出口17から延長することができる。これにより、下壁26Lが吹出口17から突出しない構成と比較して、ディフューザの機能を有する吹出流路26が長くなるため、吹出流路26の静圧をより上昇させることができ、吹出流路26における風量をより増加させることができる。また室内機本体10の通風抵抗(機内圧損)が高くなる場合に、吹出口17の下方からの空気の逆流を抑制できるため、サージングがより発生し難くなる。
(C2) The indoor unit 1 further includes a movable lower wall 26LM and a moving mechanism 29 that moves the movable lower wall 26LM. In one example, the movable lower wall 26LM and the moving mechanism 29 have the same configuration as the movable lower wall 26LM and the moving mechanism 29 of the second embodiment. In this case, the flap 24 is rotatably provided at the tip of the movable lower wall 26LM. According to this configuration, since the movable lower wall 26LM protrudes from the blowout port 17, the indoor air blown from the blowout port 17 is restricted from flowing downward from the blowout port 17 by the movable lower wall 26LM. The outlet channel 26 can be extended from the outlet 17. Thereby, compared with the structure which the lower wall 26L does not protrude from the blower outlet 17, since the blowing flow path 26 which has a function of a diffuser becomes long, the static pressure of the blowing flow path 26 can be raised more, and a blowing flow The air volume in the path 26 can be further increased. Further, when the ventilation resistance (internal pressure loss) of the indoor unit main body 10 becomes high, the backflow of air from below the blower outlet 17 can be suppressed, so surging is less likely to occur.
(C3)室内機1は、可動上壁26UMと、可動上壁26UMを移動させる移動機構29とをさらに備える。一例では、可動上壁26UM及び移動機構29は、第3実施形態の可動上壁26UM及び移動機構29と同じ構成である。この構成によれば、可動上壁26UMが吹出口17よりも突出することにより、吹出口17から吹き出される室内空気が可動上壁26UMによって吹出口17から上方に流れることが規制されるため、吹出流路26を吹出口17から延長することができる。これにより、上壁26Uが吹出口17から突出しない構成と比較して、ディフューザの機能を有する吹出流路26が長くなるため、吹出流路26の静圧をより上昇させることができ、吹出流路26における風量をより増加させることができる。また室内機本体10の通風抵抗(機内圧損)が高くなる場合に、吹出口17の上方からの空気の逆流を抑制できるため、サージングがより発生し難くなる。
(C3) The indoor unit 1 further includes a movable upper wall 26UM and a moving mechanism 29 that moves the movable upper wall 26UM. In one example, the movable upper wall 26UM and the moving mechanism 29 have the same configuration as the movable upper wall 26UM and the moving mechanism 29 of the third embodiment. According to this configuration, since the movable upper wall 26UM protrudes from the blowout port 17, the indoor air blown from the blowout port 17 is restricted from flowing upward from the blowout port 17 by the movable upper wall 26UM. The outlet channel 26 can be extended from the outlet 17. Thereby, compared with the structure which the upper wall 26U does not protrude from the blower outlet 17, since the blower flow path 26 which has a function of a diffuser becomes long, the static pressure of the blower flow path 26 can be raised more, and a blowout flow The air volume in the path 26 can be further increased. Moreover, since the backflow of the air from the upper direction of the blower outlet 17 can be suppressed when the ventilation resistance (internal pressure loss) of the indoor unit main body 10 becomes high, surging is less likely to occur.
(C4)室内機1は、可動側壁26SM、可動下壁26LM、及び可動上壁26UMの少なくとも1つと、可動側壁26SM、可動下壁26LM、及び可動上壁26UMの少なくとも1つを移動させる移動機構29とをさらに備える。この構成によれば、上記(C1)~(C3)の少なくとも1つの効果が得られる。
(C4) The indoor unit 1 moves at least one of the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM, and at least one of the movable side wall 26SM, the movable lower wall 26LM, and the movable upper wall 26UM. 29 is further provided. According to this configuration, at least one of the effects (C1) to (C3) is obtained.
・上記第1~第4実施形態において、移動機構29を省略してもよい。この場合、吹出流路26を構成する構成要素は、常に突出状態である。すなわち、両側壁26S、上壁26U、及び下壁26Lの少なくとも1つは、吹出口17から突出するように設けられる。一例では、図15(a)(b)に示す室内機1では、吹出流路26を構成する構成要素である両側壁26S、上壁26U、及び下壁26Lが吹出口17から突出するように設けられている。この場合、例えば、吹出流路26における吹出口17よりも下流側における両側壁26Sの左右方向の間の距離が吹出口17の左右方向の長さよりも小さくなる突出部26Pが、両側壁26Sにおける吹出口17よりも下流側の部分に設けられてもよい。一例では、図15(a)(b)に示すとおり、突出部26Pは、上壁26Uから下壁26Lに向けて両側壁26Sの左右方向の間の距離(突出部26Pの左右方向の間の距離)が小さくなる略三角錐に形成されている。また、左右方向において突出部26P同士が対向する面26PAは、吹出流路26の下流側に向かうにつれて突出部26Pの左右方向の間の距離が小さくなるように形成されている。なお、突出部26Pの形状は、吹出流路26における吹出口17よりも下流側における両側壁26Sの左右方向の間の距離が吹出口17の左右方向の長さよりも小さくなるように形成されていれば、任意に変更可能である。
In the first to fourth embodiments, the moving mechanism 29 may be omitted. In this case, the component which comprises the blowing flow path 26 is always a protrusion state. That is, at least one of the side walls 26 </ b> S, the upper wall 26 </ b> U, and the lower wall 26 </ b> L is provided so as to protrude from the air outlet 17. In one example, in the indoor unit 1 shown in FIGS. 15A and 15B, the side walls 26 </ b> S, the upper wall 26 </ b> U, and the lower wall 26 </ b> L that are constituent elements of the blowout flow path 26 protrude from the blowout port 17. Is provided. In this case, for example, the protruding portion 26P in which the distance between the left and right side walls 26S on the downstream side of the outlet 17 in the outlet channel 26 is smaller than the length in the left and right direction of the outlet 17 is provided on the side walls 26S. You may provide in the part of the downstream rather than the blower outlet 17. FIG. In one example, as illustrated in FIGS. 15A and 15B, the protrusion 26P has a distance between the left and right sides of the side walls 26S from the upper wall 26U to the lower wall 26L (between the left and right directions of the protrusion 26P). It is formed in a substantially triangular pyramid with a small (distance). Further, the surface 26PA where the projecting portions 26P face each other in the left-right direction is formed such that the distance between the left and right directions of the projecting portions 26P becomes smaller toward the downstream side of the blowout flow path 26. In addition, the shape of the protrusion 26 </ b> P is formed so that the distance between the left and right sides of the side walls 26 </ b> S on the downstream side of the outlet 17 in the outlet channel 26 is smaller than the length in the left and right direction of the outlet 17. Can be arbitrarily changed.
・上記第1~第3実施形態において、両側壁26Sが吹出口17から突出するように延長された吹出流路26の下流側における両側壁26Sの左右方向の間の距離が、吹出流路26の吹出口17側(上流側)における両側壁26Sの左右方向の間の距離よりも常に小さくなるように設けられてもよい。これにより、吹出流路26の下流側における風速を高くすることができる。したがって、吹出口17からの室内空気の逆流を抑制できるため、サージングがより発生し難くなる。
In the first to third embodiments, the distance between the left and right sides of the both side walls 26S on the downstream side of the blowing channel 26 extended so that the both side walls 26S protrude from the blowing port 17 is the blowing channel 26. It may be provided so as to be always smaller than the distance between the left and right sides of the both side walls 26S on the outlet 17 side (upstream side). Thereby, the wind speed in the downstream of the blowing flow path 26 can be made high. Therefore, since the backflow of the room air from the blower outlet 17 can be suppressed, surging is less likely to occur.
以上、本開示の空気調和機の室内機の各実施形態及び各変形例を説明したが、特許請求の範囲に記載された本開示の趣旨及び範囲から逸脱することなく、形態や詳細な多様な変更が可能なことが理解されるであろう。
As mentioned above, although each embodiment and each modification of the indoor unit of the air conditioner of the present disclosure have been described, there are various forms and details without departing from the spirit and scope of the present disclosure described in the claims. It will be understood that changes are possible.
Claims (7)
- 吸込口(16)及び吹出口(17)を有する室内機本体(10)と、
前記吸込口(16)から吸い込まれた空気を熱交換する熱交換器(22)と、
前記熱交換器(22)によって熱交換された空気を前記吹出口(17)から吹き出すように構成されたクロスフローファン(23)と、
を備え、
前記クロスフローファン(23)には、下壁(26L)、左右の両側壁(26S)、及び上壁(26U)により断面積が末広がりに大きくなるように構成された、吹出空気を前記吹出口(17)に案内する吹出流路(26)が形成され、
前記両側壁(26S)は、少なくとも空調運転中に前記吹出口(17)から突出するように設けられている
空気調和機の室内機(1)。 An indoor unit body (10) having a suction port (16) and an outlet (17);
A heat exchanger (22) for exchanging heat of air sucked from the suction port (16);
A cross flow fan (23) configured to blow out the air heat-exchanged by the heat exchanger (22) from the air outlet (17);
With
The cross-flow fan (23) is supplied with blown air, which is configured such that the cross-sectional area of the lower wall (26L), the left and right side walls (26S), and the upper wall (26U) is widened toward the end. A blowout channel (26) for guiding to (17) is formed,
The both side walls (26S) are provided so as to protrude from the air outlet (17) at least during the air conditioning operation. - 前記下壁(26L)は、少なくとも空調運転中に前記吹出口(17)から突出するように設けられている
請求項1に記載の空気調和機の室内機(1)。 The indoor unit (1) for an air conditioner according to claim 1, wherein the lower wall (26L) is provided so as to protrude from the outlet (17) at least during air-conditioning operation. - 前記上壁(26U)は、少なくとも空調運転中に前記吹出口(17)から突出するように設けられている
請求項1又は2に記載の空気調和機の室内機(1)。 The indoor unit (1) for an air conditioner according to claim 1 or 2, wherein the upper wall (26U) is provided so as to protrude from the air outlet (17) at least during air-conditioning operation. - 前記吹出流路(26)は、前記吹出口(17)から突出し、かつ前記吹出流路(26)における前記吹出口(17)よりも下流側における両側壁(26S)の左右方向の間の距離が前記吹出口(17)の左右方向の長さよりも小さくなるように形成されている
請求項1~3のいずれか一項に記載の空気調和機の室内機(1)。 The outlet channel (26) protrudes from the outlet (17), and the distance between the left and right sides of the side walls (26S) on the downstream side of the outlet (17) in the outlet channel (26). The indoor unit (1) for an air conditioner according to any one of claims 1 to 3, wherein is formed to be smaller than a length in a left-right direction of the air outlet (17). - 前記吹出流路(26)を構成する前記側壁(26S)を含む構成要素(26S,26L、26U)が前記吹出口(17)から突出していない収納状態と、少なくとも前記側壁(26S)が前記吹出口(17)から突出した突出状態とに変更可能に構成された移動機構(29)をさらに備え、
前記移動機構(29)は、空調運転中において前記突出状態になり、空調運転停止中において前記収納状態になる
請求項1~4のいずれか一項に記載の空気調和機の室内機(1)。 The stowed state in which the component (26S, 26L, 26U) including the side wall (26S) constituting the blowout flow path (26) does not protrude from the blowout port (17), and at least the side wall (26S) is the blowout port. A moving mechanism (29) configured to be changeable to a protruding state protruding from the outlet (17);
The indoor unit (1) for an air conditioner according to any one of claims 1 to 4, wherein the moving mechanism (29) is in the protruding state during an air conditioning operation and is in the stowed state when the air conditioning operation is stopped. . - 前記移動機構(29)は、サージングが発生した場合に、前記吹出流路(26)における前記吹出口(17)から突出する部分の断面積を小さくするように前記構成要素(26S,26L、26U)を移動させる
請求項5に記載の空気調和機の室内機(1)。 When the surging occurs, the moving mechanism (29) is configured so that the component (26S, 26L, 26U) reduces the cross-sectional area of the portion of the outlet channel (26) protruding from the outlet (17). The air conditioner indoor unit (1) according to claim 5. - 前記クロスフローファン(23)の羽根車(25)の外径Dに対する前記室内機本体(10)の高さHの比(H/D)が2.2未満となるように構成されている
請求項1~6のいずれか一項に記載の空気調和機の室内機(1)。 The ratio (H / D) of the height H of the indoor unit body (10) to the outer diameter D of the impeller (25) of the crossflow fan (23) is less than 2.2. Item 7. The air conditioner indoor unit (1) according to any one of items 1 to 6.
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EP19776320.4A EP3779296B1 (en) | 2018-03-30 | 2019-02-26 | Indoor unit of air conditioner |
CN201980022089.2A CN111902679A (en) | 2018-03-30 | 2019-02-26 | Indoor unit of air conditioner |
AU2019246289A AU2019246289B2 (en) | 2018-03-30 | 2019-02-26 | Indoor unit of air conditioner |
US17/041,385 US20210033288A1 (en) | 2018-03-30 | 2019-02-26 | Indoor unit of air conditioner |
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JP2018070195A JP6926024B2 (en) | 2018-03-30 | 2018-03-30 | Indoor unit of air conditioner |
JP2018-070195 | 2018-03-30 |
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WO2019187895A1 true WO2019187895A1 (en) | 2019-10-03 |
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PCT/JP2019/007257 WO2019187895A1 (en) | 2018-03-30 | 2019-02-26 | Indoor unit of air conditioner |
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US (1) | US20210033288A1 (en) |
EP (1) | EP3779296B1 (en) |
JP (1) | JP6926024B2 (en) |
CN (1) | CN111902679A (en) |
AU (1) | AU2019246289B2 (en) |
WO (1) | WO2019187895A1 (en) |
Cited By (1)
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WO2021114712A1 (en) * | 2019-12-11 | 2021-06-17 | 珠海格力电器股份有限公司 | Cross-flow fan, air conditioner indoor unit, air conditioner, and air port control method |
Families Citing this family (1)
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CN109790842B (en) * | 2016-09-30 | 2021-03-23 | 大金工业株式会社 | Cross-flow fan and indoor unit of air conditioning device comprising same |
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Also Published As
Publication number | Publication date |
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US20210033288A1 (en) | 2021-02-04 |
CN111902679A (en) | 2020-11-06 |
EP3779296A4 (en) | 2021-05-26 |
AU2019246289A1 (en) | 2020-10-15 |
EP3779296A1 (en) | 2021-02-17 |
JP6926024B2 (en) | 2021-08-25 |
JP2019178851A (en) | 2019-10-17 |
EP3779296B1 (en) | 2023-08-02 |
AU2019246289B2 (en) | 2022-02-10 |
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