CN114364922A - Air conditioner indoor unit and air conditioner - Google Patents
Air conditioner indoor unit and air conditioner Download PDFInfo
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- CN114364922A CN114364922A CN202080063899.5A CN202080063899A CN114364922A CN 114364922 A CN114364922 A CN 114364922A CN 202080063899 A CN202080063899 A CN 202080063899A CN 114364922 A CN114364922 A CN 114364922A
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- Prior art keywords
- horizontal
- air
- indoor unit
- control mode
- airflow control
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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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
- Air Conditioning Control Device (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The air conditioning indoor unit (1) has a 1 st horizontal blade (41) and a 2 nd horizontal blade (51) disposed closer to the wall surface (W) than the 1 st horizontal blade (41). The operation in the 1 st airflow control mode can be performed, in the 1 st airflow control mode, the downstream side of the flow of the blown air is wider than the upstream side of the flow of the blown air with respect to the interval between the 1 st horizontal blade (41) and the 2 nd horizontal blade (51), the blown air flows obliquely downward on the opposite side to the wall surface (W) side, a part of the blown air flows along the lower blade surface of the 1 st horizontal blade (41), and the other part of the blown air flows along the upper blade surface of the 2 nd horizontal blade (51). The lower blade surface of the 1 st horizontal blade (41) includes a curved surface that bulges, while the upper blade surface of the 2 nd horizontal blade (51) includes a curved surface that bulges.
Description
Technical Field
The present invention relates to an air conditioning indoor unit and an air conditioner having the same.
Background
Conventionally, there is an air conditioning indoor unit including a casing provided with an air outlet, a 1 st horizontal blade attached to a front edge portion of the air outlet, and a 2 nd horizontal blade attached to a rear edge portion of the air outlet (see, for example, patent document 1 (japanese patent application laid-open No. 2017) 125678)). The 1 st and 2 nd horizontal blades adjust the vertical direction of the blown air flowing from the outlet port of the casing into the indoor space.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2017-125678
Disclosure of Invention
Problems to be solved by the invention
In the above-described conventional air conditioning indoor unit, in order to further spread the blown air in the vertical direction, for example, when the interval between the upstream-side end portions of the blown air flow in the 1 st and 2 nd horizontal blades is maintained and the interval between the downstream-side end portions of the blown air flow in the 1 st and 2 nd horizontal blades is further increased, the airflow adheres to only one of the 1 st and 2 nd horizontal blades.
The invention provides an air conditioning indoor unit capable of preventing airflow from peeling off from a 1 st horizontal blade and a 2 nd horizontal blade.
Means for solving the problems
An air conditioning indoor unit according to an aspect of the present invention includes: a casing attached to a wall surface facing a space to be air-conditioned, and having an air outlet; a blower fan disposed in the housing and configured to send air to the air outlet; a 1 st horizontal blade that adjusts a vertical direction of air blown out from the air outlet toward the air-conditioned space; a 1 st driving unit that drives the 1 st horizontal blade; a 2 nd horizontal blade which is disposed closer to the wall surface side than the 1 st horizontal blade and adjusts a vertical direction of the blown air; a 2 nd driving unit that drives the 2 nd horizontal blade; and a control device for controlling the blower fan, the 1 st drive unit and the 2 nd drive unit, wherein the air-conditioning indoor unit can operate in a 1 st airflow control mode, in the 1 st airflow control mode, with respect to the interval between the 1 st horizontal blade and the 2 nd horizontal blade, a downstream side of the flow of the blown air is wider than an upstream side of the flow of the blown air, the blown air flows obliquely downward on a side opposite to the wall surface side, and a part of the blown air flows along the lower blade surface of the 1 st horizontal blade, and, another part of the blown air flows along the upper blade surface of the 2 nd horizontal blade, and the lower blade surface of the 1 st horizontal blade includes a curved surface that bulges while the upper blade surface of the 2 nd horizontal blade includes a curved surface that bulges.
Here, the lower blade surface of the 1 st horizontal blade corresponds to a surface located on the air-conditioned space side when the operation is stopped. The lower blade surface of the 2 nd horizontal blade corresponds to a surface located on the opposite side (inside of the casing) to the air-conditioning target space when the operation is stopped.
According to the above configuration, when the operation in the 1 st airflow control mode is performed, the interval between the 1 st horizontal blade and the 2 nd horizontal blade is wider on the downstream side of the flow of the blown air than on the upstream side of the flow of the blown air, and the blown air flows obliquely downward on the side opposite to the wall surface side. At this time, a part of the blown air flows along the lower surface of the 1 st horizontal blade. The lower airfoil surface of the 1 st horizontal blade includes a curved surface that bulges, whereby the coanda effect at the lower airfoil surface of the 1 st horizontal blade is increased. On the other hand, another part of the blown air flows along the upper surface of the 2 nd horizontal blade. The upper airfoil surface of this 2 nd horizontal vane also contains a curved surface that bulges, whereby the coanda effect at the upper airfoil surface of the 2 nd horizontal vane is increased. Therefore, the separation of the airflow from the 1 st and 2 nd horizontal blades can be suppressed.
In an air conditioning indoor unit according to one aspect, the lower blade surface of the 2 nd horizontal blade includes a concave curved surface.
Here, the lower blade surface of the 2 nd horizontal blade corresponds to a surface located on the air-conditioned space side when the operation is stopped.
According to the above aspect, the lower surface of the 2 nd horizontal blade includes the concave curved surface, and therefore, the airflow flowing along the lower surface of the 2 nd horizontal blade is obtained.
In an air conditioning indoor unit according to one aspect, in the 1 st airflow control mode, a separation angle between the 1 st horizontal blade and the 2 nd horizontal blade is in a range of 53 ° to 60 °.
According to the above aspect, in the 1 st airflow control mode, since the angle of separation between the 1 st horizontal blade and the 2 nd horizontal blade is set within the range of 53 ° to 60 °, the possibility of flow separation at the lower blade surface of the 1 st horizontal blade and the upper blade surface of the 2 nd horizontal blade can be reduced, and the outlet air can be reliably expanded in the vertical direction.
An air conditioning indoor unit according to one aspect is capable of operating in a 2 nd airflow control mode in which the blown air flows in a horizontal direction, wherein an angle formed by the 1 st horizontal blade with respect to a horizontal plane is greater in the 1 st airflow control mode than in the 2 nd airflow control mode, and an angle formed by the 2 nd horizontal blade with respect to the horizontal plane is greater in the 1 st airflow control mode than in the 2 nd airflow control mode.
According to the above aspect, in the 1 st airflow control mode, the angle formed by the 1 st and 2 nd horizontal blades with respect to the horizontal plane is increased as compared with the 2 nd airflow control mode, and therefore, the blown air can be reliably caused to flow obliquely downward on the side opposite to the wall side.
An air conditioning indoor unit according to one aspect includes a plurality of vertical blades that adjust a direction of air in a left-right direction of the blown air, and in the 1 st airflow control mode, one of the vertical blades is in a posture in which a downstream-side end of the blown air flow is inclined to one side with respect to an upstream-side end of the blown air flow, and the other of the vertical blades is in a posture in which a downstream-side end of the blown air flow is inclined to the other side with respect to the upstream-side end of the blown air flow.
According to the above aspect, in the 1 st airflow control mode, the vertical blade on one side of the plurality of vertical blades and the vertical blade on the other side of the plurality of vertical blades are inclined as described above, and therefore, the blown air can be expanded in the left-right direction.
An air conditioning indoor unit according to one aspect includes a human detection sensor that detects a distance to a human in the air-conditioned space, and is capable of operating in a 3 rd airflow control mode in which the blown air flows downward along the wall surface, and the control device switches from the 3 rd airflow control mode to the 1 st airflow control mode when the distance detected by the human detection sensor is equal to or less than a predetermined distance in the 3 rd airflow control mode.
According to the above aspect, in the 3 rd airflow control mode, when the distance detected by the human detection sensor is equal to or less than the predetermined distance, the mode is switched to the 1 st airflow control mode, and therefore the blown air can be directly blown to the human in the air-conditioned space at an appropriate timing.
An air conditioning indoor unit according to an aspect of the present invention includes: any one of the plurality of air-conditioning indoor units; and an air conditioning outdoor unit connected to the air conditioning indoor unit via a refrigerant pipe.
According to the above configuration, since the air conditioning indoor unit is provided, the separation of the airflow from the 1 st and 2 nd horizontal blades can be suppressed, and thus the blown air can be expanded in the vertical direction, and the air conditioning unevenness can be reduced.
Drawings
Fig. 1 is a refrigerant circuit diagram of an air conditioner according to embodiment 1 of the present invention.
Fig. 2 is a schematic cross-sectional view of the indoor unit in the operation-stopped state according to embodiment 1 of the present invention.
Fig. 3 is a structural view of the inside of the indoor unit.
Fig. 4 is a control block diagram of the air conditioner.
Fig. 5 is a schematic cross-sectional view of the indoor unit in the 1 st airflow control mode.
Fig. 6 is a schematic cross-sectional view of the indoor unit in the 2 nd airflow control mode.
Fig. 7 is a schematic cross-sectional view of the indoor unit in the 3 rd airflow control mode.
Fig. 8 is a schematic cross-sectional view of the indoor unit in the 4 th airflow control mode.
Fig. 9 is a perspective view of the 1 st horizontal baffle of embodiment 1 of the present invention.
Fig. 10 is a plan view of the 1 st horizontal baffle plate.
Fig. 11 is a bottom view of the 1 st horizontal baffle plate.
Fig. 12 is a sectional view as viewed in the direction of the arrow along line XII-XII of fig. 10.
Fig. 13 is a sectional view taken in the direction of arrows along line XIII-XIII of fig. 10.
Fig. 14 is a perspective view of the 2 nd horizontal baffle plate according to embodiment 1 of the present invention.
Fig. 15 is a plan view of the 2 nd horizontal baffle plate.
Fig. 16 is a bottom view of the 2 nd horizontal baffle plate.
Fig. 17 is a sectional view of XVII-XVII shown in fig. 13, viewed in the direction of the arrows.
Fig. 18 is a sectional view of XVIII-XVIII of fig. 13 viewed in the direction of the line arrows.
Fig. 19 is a graph showing the simulation result of the blown air in the indoor unit according to embodiment 1.
Fig. 20 is another simulation result diagram of the outlet air of the indoor unit according to embodiment 1.
Fig. 21 is a graph showing the simulation results of the outlet air of the indoor unit of the comparative example.
Fig. 22 is a graph showing the simulation results of the blown air of the indoor unit of the comparative example.
Fig. 23 is an image of the outlet air of the indoor unit according to embodiment 1.
Fig. 24 is a diagram for explaining the wind speed of the blown air in the indoor unit according to embodiment 1.
Fig. 25 is a control block diagram of an air conditioner according to embodiment 2 of the present invention.
Detailed Description
The air conditioning indoor unit and the air conditioner according to the present invention will be described in detail below with reference to the illustrated embodiments. In the drawings, the same reference numerals are given to the common portions, and redundant description is omitted.
[ 1 st embodiment ]
Fig. 1 shows a refrigerant circuit RC included in an air conditioner according to embodiment 1 of the present invention. This air conditioner is a pair type air conditioner in which the indoor unit 1 and the outdoor unit 2 are paired one on one. The indoor unit 1 is an example of an air conditioning indoor unit. The outdoor unit 2 is an example of an air conditioning outdoor unit. The communication pipes L1 and L2 are examples of refrigerant pipes.
The air conditioner comprises: a compressor 11; a four-way switching valve 12 having one end connected to the discharge side of the compressor 11; an outdoor heat exchanger 13 having one end connected to the other end of the four-way switching valve 12; an electric expansion valve 14 having one end connected to the other end of the outdoor heat exchanger 13; an indoor heat exchanger 15 having one end connected to the other end of the electric expansion valve 14 via a shutoff valve 21 and a communication pipe L1; and a gas-liquid separator 16 having one end connected to the other end of the indoor heat exchanger 15 via a communication pipe L2, the shutoff valve 22, and the four-way switching valve 12, and the other end connected to the suction side of the compressor 11. Here, the compressor 11, the four-way switching valve 12, the outdoor heat exchanger 13, the motor-operated expansion valve 14, the indoor heat exchanger 15, the gas-liquid separator 16, and the like constitute a refrigerant circuit RC of the air conditioner. The indoor heat exchanger 15, the indoor fan 10, and the like constitute the indoor unit 1. On the other hand, the compressor 11, the four-way switching valve 12, the outdoor heat exchanger 13, the motor-operated expansion valve 14, the gas-liquid separator 16, the outdoor fan 20, and the like constitute the outdoor unit 2. The indoor fan 10 is an example of a blower fan. The motor-operated expansion valve 14 is an example of a pressure reducing mechanism.
The indoor unit 1 includes an indoor heat exchanger temperature sensor T4 for detecting the temperature of the indoor heat exchanger 15, and an indoor temperature sensor T5 for detecting the indoor temperature. Further, an indoor fan 10 for circulating indoor air through the indoor heat exchanger 15 is provided in the indoor unit 1.
The outdoor unit 2 includes an outdoor heat exchanger temperature sensor T1 for detecting the temperature of the outdoor heat exchanger 13, an outdoor air temperature sensor T2 for detecting the temperature of the outdoor air, and an evaporation temperature sensor T3 for detecting the evaporation temperature of the motor-operated expansion valve 14. Further, an outdoor fan 20 for supplying outside air to the outdoor heat exchanger 13 is provided in the outdoor unit 2.
The air conditioner includes a remote controller (hereinafter, referred to as a "remote controller") not shown. By operating the remote controller, 1 operation of the cooling operation, the dehumidifying operation, the heating operation, and the like can be started or stopped, or switched to another operation. Further, by operating the remote controller, the set temperature of the indoor temperature can be changed, or the air volume of the air blown out by the indoor unit 1 can be adjusted.
When the four-way switching valve 12 is switched to the state shown by the solid line in fig. 1 by selecting the cooling operation or the dehumidifying operation using the remote controller, the refrigerant from the compressor 11 flows through the refrigerant circuit RC in the order of the four-way switching valve 12, the outdoor heat exchanger 13, the electric expansion valve 14, the indoor heat exchanger 15, the four-way switching valve 12, and the gas-liquid separator 16 as shown by the arrows of the solid line. On the other hand, when the heating operation is selected and the four-way switching valve 12 is switched to the state indicated by the broken line in fig. 1, the refrigerant from the compressor 11 flows through the refrigerant circuit RC in the order of the four-way switching valve 12, the indoor heat exchanger 15, the electric expansion valve 14, the outdoor heat exchanger 13, the four-way switching valve 12, and the gas-liquid separator 16 as indicated by the broken line arrows.
Fig. 2 schematically shows a longitudinal section of the indoor unit 1 in an operation-stopped state. The indoor unit 1 is of a wall-mounted type.
The indoor unit 1 includes a casing 30 including a casing main body 31 and a front panel 32. The casing 30 is attached to a wall surface W facing the indoor space R, and houses the indoor fan 10, the indoor heat exchanger 15, the drain pan 33, and the like. The indoor space R is an example of an air-conditioning target space.
The housing main body 31 is formed of a plurality of members, and has a front surface portion 31a, an upper surface portion 31b, a rear surface portion 31c, and a lower surface portion 31 d. A front panel 32 is openably and closably attached to the front portion 31 a. A suction port (not shown) is provided from the front surface portion 31a to the upper surface portion 31 b.
The front panel 32 constitutes the front surface 31a of the indoor unit 1, and has, for example, a flat shape without a suction port. The upper end of the front panel 32 is rotatably supported by the upper surface 31b of the housing main body 31 and is capable of hinge-type operation.
The indoor fan 10 and the indoor heat exchanger 15 are attached to the casing main body 31. The indoor heat exchanger 15 exchanges heat with indoor air sucked into the casing 30 through the suction port. The shape of the indoor heat exchanger 15 in side view is an inverted V shape with both ends directed downward and a bent portion located upward. The indoor fan 10 is located below the bent portion of the indoor heat exchanger 15. The indoor fan 10 is, for example, a cross-flow fan, and sends the indoor air having passed through the indoor heat exchanger 15 to the outlet 34 of the lower surface portion 31d of the casing main body 31.
Further, the 1 st and 2 nd partition walls 35 and 36 are provided in the housing main body 31. The space between the 1 st partition wall 35 and the 2 nd partition wall 36 serves as an outlet flow path 37 connecting the indoor fan 10 and the outlet 34.
The drain pan 33 is disposed below the front portion of the indoor heat exchanger 15, and receives dew condensation water from the front portion. The dew condensation water is discharged to the outside of the room through a drain pipe (not shown).
The indoor unit 1 further includes a 1 st horizontal louver 41 and a 2 nd horizontal louver 51 disposed behind the 1 st horizontal louver 41 (on the wall surface W side). The 1 st horizontal flap 41 and the 2 nd horizontal flap 51 adjust the vertical direction of the blown air (air flowing through the blowing flow path 37) blown out from the blow-out port 34. The 1 st horizontal baffle 41 is an example of the 1 st horizontal blade. The 2 nd horizontal baffle 51 is an example of the 2 nd horizontal blade.
The 1 st horizontal louver 41 has a 1 st end 41a disposed upstream with respect to the flow of the blown air and a 2 nd end 41b disposed downstream with respect to the flow of the blown air during operation of the indoor unit 1. The 1 st horizontal flap 41 is rotatably attached to the lower surface portion 31d of the housing main body 31.
More specifically, the 1 st horizontal flap 41 has a sheet portion 41g (shown in fig. 9 to 13) connected to the 2 nd end portion 41 b. The piece 41g is attached to the attachment portion 38 of the housing main body 31, and the 1 st horizontal flap 41 is rotatable about the attachment portion 38. When the operation of the indoor unit 1 is stopped, the 1 st horizontal louver 41 takes a posture along the front portion of the lower surface portion 31d of the casing main body 31. After the operation of the indoor unit 1 is started, the 1 st horizontal shutter 41 is rotated by the driving of the 1 st horizontal shutter motor 73 (shown in fig. 3 and 4), and the interval between the front portion of the lower surface portion 31d of the casing main body 31 and the 2 nd end portion 41b of the 1 st horizontal shutter 41 is widened. At this time, the 1 st horizontal barrier 41 can take a plurality of inclined postures with respect to the horizontal plane. As the 1 st horizontal barrier motor 73, for example, a stepping motor with 4-phase windings is used.
Like the 1 st horizontal flap 41, the 2 nd horizontal flap 51 has a 1 st end 51a disposed on the upstream side with respect to the flow of the blown air and a 2 nd end 51b disposed on the downstream side with respect to the flow of the blown air. The 1 st end 51a of the 2 nd horizontal shutter 51 is rotatably attached to the lower surface 31d of the housing main body 31.
More specifically, when the operation of the indoor unit 1 is stopped, the 2 nd horizontal flap 51 assumes a posture of closing the air outlet 34. After the operation of the indoor unit 1 is started, the 2 nd horizontal barrier motor 74 (shown in fig. 3 and 4) drives the 2 nd horizontal barrier 51. Accordingly, the 2 nd horizontal flap 51 rotates about the 1 st end portion 51a, and the 2 nd end portion 51b is thereby separated from the mounting portion 38, opening the air outlet 34. At this time, the 2 nd horizontal barrier 51 can take a plurality of inclined postures with respect to the horizontal plane. As the 2 nd horizontal barrier motor 74, for example, a 4-phase winding stepping motor is used.
The indoor unit 1 further includes a plurality of vertical flaps 61 (shown in fig. 3) for adjusting the direction of the blown air in the lateral direction. The plurality of vertical flaps 61 are arranged in the outlet flow path 37 at predetermined intervals along the longitudinal direction of the outlet 34 (the direction perpendicular to the paper surface of fig. 2). The vertical baffle 61 is an example of a vertical blade.
Fig. 3 schematically shows the internal structure of the indoor unit 1.
The 1 st and 2 nd horizontal flappers 41 and 51 are supported by the 1 st and 2 nd rotary shafts 71 and 72 to be rotatable in the vertical direction. The 1 st and 2 nd horizontal flapper motors 73 and 74 rotate the 1 st and 2 nd rotating shafts 71 and 72, thereby rotating the 1 st and 2 nd horizontal flappers 41 and 51 in the vertical direction. The 1 st horizontal barrier motor 73 is an example of the 1 st driving unit. The 2 nd horizontal barrier motor 74 is an example of the 2 nd driving unit.
The plurality of vertical baffles 61 are divided into a 1 st vertical baffle group G1 and a 2 nd vertical baffle group G2. The vertical baffle 61 constituting the 1 st vertical baffle group G1 is an example of one vertical blade of the plurality of vertical blades. The vertical baffle 61 constituting the 2 nd vertical baffle group G2 is an example of the vertical blade on the other lateral side of the plurality of vertical blades.
The 1 st vertical baffle group G1 is configured by a plurality of vertical baffles 61 that face open regions of the blow-out port 34 that are on the left side of the center in the left-right direction. The vertical baffle plates 61 belonging to the 1 st vertical baffle group G1 are connected to each other by the 1 st connecting rod 81. Further, the 1 st vertical shutter group motor 83 drives the 1 st link 81 in the left-right direction, whereby the plurality of vertical shutters 61 are rotated in the left-right direction about the respective rotation shafts (not shown).
The 2 nd vertical baffle group G2 is configured by a plurality of vertical baffles 61 facing opening regions on the right side of the center in the left-right direction of the outlet 34. The vertical flaps 61 belonging to the 2 nd vertical flap group G2 are also connected to the 2 nd connecting rod 82 in the same manner as the vertical flaps 61 belonging to the 1 st vertical flap group G1, and can be rotated by the 2 nd vertical flap group motor 84.
Fig. 4 is a control block diagram of the air conditioner.
The air conditioner includes a control device 100 including a microcomputer, an input/output circuit, and the like. The control device 100 includes an indoor control unit (not shown) provided on the indoor unit 1 side and an outdoor control unit (not shown) provided on the outdoor unit 2 side.
The controller 100 controls the compressor 11, the four-way switching valve 12, the indoor fan motor 85, the outdoor fan motor 86, the display unit 50, the 1 st horizontal barrier motor 73, the 2 nd horizontal barrier motor 74, the 1 st vertical barrier group motor 83, the 2 nd vertical barrier group motor 84, and the like, based on signals from the outdoor heat exchanger temperature sensor T1, the outside air temperature sensor T2, the evaporation temperature sensor T3, the indoor heat exchanger temperature sensor T4, the indoor temperature sensor T5, and the like. The display unit 50 is an LED or the like provided in the indoor unit 1 and displays at least an operation state. In addition, the indoor fan motor 85 drives the indoor fan 10. Further, the outdoor fan motor 86 drives the outdoor fan 20.
The indoor unit 1 can operate in the 1 st airflow control mode, the 2 nd airflow control mode, the 3 rd airflow control mode, and the 4 th airflow control mode. Based on the signal or the like, 1 of the 1 st, 2 nd, 3 rd and 4 th airflow control modes is automatically selected or switched to another airflow control mode, which will be described later. Further, by operating the remote controller, 1 of the 1 st, 2 nd, 3 rd and 4 th airflow control modes can be selected.
< 1 st airflow control mode >
Fig. 5 schematically shows a longitudinal section of the indoor unit 1 in the 1 st airflow control mode.
In the 1 st airflow control mode, the distance between the 1 st horizontal flap 41 and the 2 nd horizontal flap 51 is wider on the downstream side of the blown-out air than on the upstream side of the flow of the blown-out air, and the blown-out air flowing from the blow-out port 34 into the indoor space R flows obliquely downward on the front side (the side opposite to the wall surface W side).
More specifically, if a virtual plane V1 is defined that passes through the center of the 1 st end 41a of the 1 st horizontal baffle 41 in the thickness direction and the center of the 2 nd end 41b of the 1 st horizontal baffle 41 in the thickness direction, the inclination angle θ 1 of the virtual plane V1 with respect to the horizontal plane H becomes, for example, +10 ° in the 1 st airflow control mode. On the other hand, if the virtual plane V2 passing through the center of the 1 st end 51a of the 2 nd horizontal louver 51 in the thickness direction and the center of the 2 nd end 41b of the 2 nd horizontal louver 51 in the thickness direction is defined, the inclination angle θ 2 of the virtual plane V2 with respect to the horizontal plane H becomes, for example, +70 ° in the 1 st airflow control mode. At this time, the separation angle between the 1 st horizontal shutter 41 and the 2 nd horizontal shutter 51 is, for example, 60 °. When the inclination angles θ 1 and θ 2 are positive (+), the front sides of the virtual surfaces V1 and V2 are positioned lower than the rear sides of the virtual surfaces V1 and V2. The angle of separation corresponds to an angle obtained by subtracting the inclination angle θ 1 from the inclination angle θ 2.
In other words, when the 1 st horizontal louver 41 is rotated by 25 ° from the state when the operation of the indoor unit 1 is stopped, the 1 st airflow control mode is set in the posture. On the other hand, when the 2 nd horizontal louver 51 is rotated by 70 ° from the state when the operation of the indoor unit 1 is stopped, the posture is set to the 1 st airflow control mode. Here, an angle obtained by subtracting the rotation angle of the 1 st horizontal shutter 41 from the rotation angle of the 2 nd horizontal shutter 51 is a separation angle between the 1 st horizontal shutter 41 and the 2 nd horizontal shutter 51 in the 1 st airflow control mode.
In the 1 st airflow control mode, each of the vertical flaps 61 of the 1 st vertical flap group G1 is inclined such that the downstream end of the flow of the blown air is located on the left side of the casing 30 with respect to the upstream end of the flow of the blown air. In the 1 st airflow control mode, each of the vertical flaps 61 of the 2 nd vertical flap group G1 is inclined such that the downstream end of the flow of the blown air is positioned on the right side of the casing 30 with respect to the upstream end of the flow of the blown air.
To describe in more detail, the interval between the vertical baffle 61 of the 1 st vertical baffle group G1 and the vertical baffle 61 of the 2 nd vertical baffle group G2 is wider on the downstream side of the flow of the blown air than on the upstream side of the flow of the blown air. In other words, each vertical baffle 61 of the 1 st vertical baffle group G1 rotates such that the end on the downstream side of the flow of the blown air is closer to the left side surface of the casing body 31 and the end on the upstream side of the flow of the blown air is farther from the left side surface of the casing body 31. On the other hand, each vertical baffle 61 of the 2 nd vertical baffle group G2 rotates so that the end on the downstream side of the flow of the blown air is closer to the right side surface of the casing body 31 and the end on the upstream side of the flow of the blown air is farther from the right side surface of the casing body 31.
< 2 nd airflow control mode >
Fig. 6 schematically shows a longitudinal section of the indoor unit 1 in the 2 nd airflow control mode.
In the 2 nd airflow control mode, the blown air flowing from the blow-out port 34 into the indoor space R flows in the horizontal direction.
More specifically, in the 2 nd airflow control mode, the inclination angle θ 1 of the virtual plane V1 with respect to the horizontal plane H is, for example, -5 °. On the other hand, in the 2 nd gas flow control mode, the inclination angle θ 2 of the virtual plane V2 with respect to the horizontal plane H is, for example, +15 °. In this case, the inclination angles θ 1 and θ 2 are smaller than those in the 1 st airflow control mode. In contrast, the inclination angles θ 1 and θ 2 in the 1 st airflow control mode are larger than the inclination angles θ 1 and θ 2 in the 2 nd airflow control mode. When the inclination angle θ 1 is a negative (-) angle, the front side of the virtual plane V1 is located above the rear side of the virtual plane V1.
In other words, when the 1 st horizontal louver 41 is rotated by 10 ° from the state when the operation of the indoor unit 1 is stopped, the 2 nd airflow control mode is set in the posture. On the other hand, when the 2 nd horizontal louver 51 is rotated by 15 ° from the state when the operation of the indoor unit 1 is stopped, the 2 nd airflow control mode is set in the posture.
< 3 rd airflow control mode >
Fig. 7 schematically shows a longitudinal section of the indoor unit 1 in the 3 rd airflow control mode.
In the 3 rd airflow control mode, the blown air flowing from the blow-out port 34 into the indoor space R flows downward along the wall surface W.
More specifically, in the 3 rd airflow control mode, the inclination angle θ 1 of the virtual plane V1 with respect to the horizontal plane H is, for example, +105 °. On the other hand, in the 3 rd airflow control mode, the inclination angle θ 2 of the virtual plane V2 with respect to the horizontal plane H is, for example, +100 °.
In other words, when the 1 st horizontal louver 41 is rotated by 125 ° from the state when the operation of the indoor unit 1 is stopped, the posture is set to the 3 rd airflow control mode. On the other hand, when the 2 nd horizontal louver 51 is rotated by 100 ° from the state when the operation of the indoor unit 1 is stopped, the posture is set to the 3 rd airflow control mode.
< 4 th airflow control mode >
Fig. 8 schematically shows a longitudinal section of the indoor unit 1 in the 4 th airflow control mode.
In the 4 th airflow control mode, the interval between the 1 st horizontal flap 41 and the 2 nd horizontal flap 51 is wider on the downstream side of the blown-out air than on the upstream side of the flow of the blown-out air, and the blown-out air flowing from the blow-out port 34 into the indoor space R flows obliquely downward on the front side. At this time, the width of the blown air in the vertical direction is smaller than that in the 1 st airflow control mode.
More specifically, in the 4 th airflow control mode, the inclination angle θ 1 of the virtual plane V1 with respect to the horizontal plane H is, for example, -5 °. On the other hand, in the 3 rd airflow control mode, the inclination angle θ 2 of the virtual plane V2 with respect to the horizontal plane H is, for example, +45 °. At this time, the separation angle between the 1 st horizontal shutter 41 and the 2 nd horizontal shutter 51 is, for example, 50 °. The above-described angle of separation corresponds to an angle obtained by subtracting the inclination angle θ 1 from the inclination angle θ 2.
In other words, when the 1 st horizontal louver 41 is rotated by 15 ° from the state when the operation of the indoor unit 1 is stopped, the posture is set to the 4 th airflow control mode. On the other hand, when the 2 nd horizontal louver 51 is rotated by 52.5 ° from the state when the operation of the indoor unit 1 is stopped, the posture is set to the 1 st airflow control mode. Here, an angle obtained by subtracting the rotation angle of the 1 st horizontal shutter 41 from the rotation angle of the 2 nd horizontal shutter 51 is a separation angle between the 1 st horizontal shutter 41 and the 2 nd horizontal shutter 51 in the 4 th airflow control mode.
< Structure of the 1 st horizontal baffle plate 41 >
Fig. 9 is a view of the upper blade surface 41c of the 1 st horizontal baffle plate 41 as viewed obliquely. Fig. 10 is a front view of the upper blade surface 41c of the 1 st horizontal baffle plate 41. Fig. 11 is a front view of the lower blade surface 41d of the 1 st horizontal baffle plate 41. Fig. 12 is a sectional view as viewed from the line XII-XII in fig. 11. Fig. 13 is a sectional view taken along line XIII-XIII in fig. 10. Since the cross-sectional view taken along line XII '-XII' in fig. 11 is the same as that in fig. 12, the illustration thereof is omitted.
As shown in fig. 9 to 13, the 1 st horizontal baffle plate 41 has the following shape: the thickness becomes thinner as approaching the 2 nd end 41b side from the 1 st end 41a side, except for a part on the 1 st end 41a side. The 1 st horizontal louver 41 has an upper blade surface 41c facing the casing main body 31 when the operation of the indoor unit 1 is stopped, and a lower blade surface 41d facing the indoor space when the operation of the indoor unit 1 is stopped.
The upper blade surface 41c includes a curved surface 41e curved and recessed in the short side direction of the 1 st horizontal baffle plate 41. In other words, when the 1 st horizontal flap 41 is cut along the short side direction, the line indicating the cross section of the upper blade surface 41c includes a curved line protruding toward the lower blade surface 41 d. Here, the short side direction of the 1 st horizontal baffle plate 41 corresponds to a direction orthogonal to the longitudinal direction of the 1 st horizontal baffle plate 41 and the thickness direction of the 1 st horizontal baffle plate 41.
The lower blade surface 41d includes a curved surface 41f curved and bulging in the short side direction of the 1 st horizontal baffle plate 41. In other words, when the 1 st horizontal flap 41 is cut along the short-side direction, the line indicating the cross section of the lower blade surface 41d includes a curved line that protrudes toward the side opposite to the upper blade surface 41 c.
The radius of curvature of the curved surface 41e of the upper blade surface 41c is set to be smaller than the radius of curvature of the curved surface 41f of the lower blade surface 41d of the 1 st horizontal flap 41.
The curved surfaces 41e and 41f are provided from one end of the 1 st horizontal flap 41 in the longitudinal direction to the other end of the 1 st horizontal flap 41 in the longitudinal direction.
< Structure of the 2 nd horizontal shutter 51 >
Fig. 14 is a view of the upper blade surface 51c of the 2 nd horizontal shutter 51 as viewed obliquely. Fig. 15 is a front view of the upper blade surface 51c of the 2 nd horizontal shutter 51. Fig. 16 is a front view of the lower blade surface 51d of the 2 nd horizontal shutter 51. Fig. 17 is a sectional view as viewed from the line XVII-XVII in fig. 16. Fig. 18 is a sectional view as viewed from line XVIII-XVIII of fig. 16. The cross-sectional view taken along the line XV '-XV' in fig. 16 is the same as that in fig. 17, and therefore, the illustration thereof is omitted.
As shown in fig. 14 to 18, the 2 nd horizontal louver 51 has an upper blade surface 51c that faces the outlet flow path 37 when the operation of the indoor unit 1 is stopped, and a lower blade surface 51d that faces the indoor space when the operation of the indoor unit 1 is stopped. In the 2 nd horizontal baffle 51, the thickness of the central portion between the 1 st end 51a and the 2 nd end 51b is thicker than the thicknesses of the 1 st and 2 nd ends 51a and 51 b.
The upper blade surface 51c includes a curved surface 51e curved and bulging in the short side direction of the 2 nd horizontal baffle 51. In other words, when the 2 nd horizontal flap 51 is cut along the short side direction, the line indicating the cross section of the upper blade surface 51c includes a curved line that protrudes toward the side opposite to the lower blade surface 51 d. Here, the short side direction of the 2 nd horizontal flap 51 corresponds to a direction orthogonal to the longitudinal direction of the 2 nd horizontal flap 51 and the thickness direction of the 2 nd horizontal flap 51.
Further, the upper surface 51c is provided with a recess 51h located on the 2 nd end 51b side. When the operation of the indoor unit 1 is stopped, a part of the attachment portion 38 enters the recess 51h, and the 2 nd horizontal shutter 51 does not interfere with the attachment portion 38.
The lower blade surface 51d includes a 1 st curved surface 51f curved and concave in the short side direction of the 2 nd horizontal flap 51, and a 2 nd curved surface 51g curved and convex in the short side direction of the 2 nd horizontal flap 51. In other words, when the 2 nd horizontal flap 51 is cut in the short-side direction, the line indicating the cross section of the lower blade surface 51d includes a curved line protruding toward the upper blade surface 51c and a curved line protruding toward the opposite side of the upper blade surface 51 c.
The 1 st curved surface 51f is provided on the 2 nd end 51b side of the lower blade surface 51d, and overlaps with the curved surface 51e in the thickness direction of the 2 nd horizontal flap 51.
The 2 nd curved surface 51g is provided on the 1 st end 51a side of the lower blade surface 51d and connected to the 1 st curved surface 51 f.
The radius of curvature (e.g., 396mm or more) of the curved surface 51e of the upper blade surface 51c is set to be smaller than the radius of curvature (e.g., 1800mm or more) of the 1 st curved surface 51f of the lower blade surface 51 d. In other words, the radius of curvature of the 1 st curved surface 51f of the lower blade surface 51d of the 2 nd horizontal flap 51 is set to be in the range of 4 to 5 times the radius of curvature of the curved surface 51e of the upper blade surface 51c of the 2 nd horizontal flap 51.
The 2 nd horizontal baffle 51 is formed so that the cross-sectional shapes along the short-side direction are the same except for both ends in the longitudinal direction. On the other hand, both ends of the 2 nd horizontal baffle 51 in the longitudinal direction have a cross-sectional shape different from the other portions of the 2 nd horizontal baffle 51.
More specifically, the upper wing surfaces 51c at both ends of the 2 nd horizontal baffle 51 in the longitudinal direction do not include the curved surfaces 51 e. The lower wing surfaces 51d at both ends of the 2 nd horizontal baffle 51 in the longitudinal direction do not include the 1 st and 2 nd curved surfaces 51f and 51 g. In fig. 14, a region where the curved surface 51e is formed is shown by a broken line.
According to the air conditioner configured as described above, when the 1 st airflow control mode operation (for example, the heating operation) is performed, the interval between the 1 st horizontal louver 41 and the 2 nd horizontal louver 51 is wider on the downstream side of the flow of the blown air than on the upstream side of the flow of the blown air, and the blown air flows obliquely downward on the opposite side to the wall surface W side. At this time, a part of the blown air flows along the lower blade surface 41d of the 1 st horizontal baffle 41. The lower blade surface 41d of the 1 st horizontal blade 41 includes the curved surface 41f that becomes a convex surface, and thereby the coanda effect at the lower blade surface 41d of the 1 st horizontal blade 41 is improved. As a result, a part of the blown air is strongly pulled up to the lower blade surface 41d of the 1 st horizontal flap 41. On the other hand, another part of the blown air flows along the upper blade surface 51c of the 2 nd horizontal baffle plate. The upper blade surface 51c of the 2 nd horizontal baffle 51 includes the curved surface 51e which becomes a convex surface, and thereby the coanda effect at the upper blade surface 51c of the 2 nd horizontal baffle 51 is improved. As a result, the other part of the blown air is strongly pulled up to the upper blade surface 51c of the 2 nd horizontal baffle 51.
Thus, since a part of the blown air is strongly pulled up to the lower blade surface 41d of the 1 st horizontal flap 41 and another part of the blown air is strongly pulled up to the lower blade surface 51d of the 2 nd horizontal flap 51, separation of the airflow from the 1 st and 2 nd horizontal flaps 41 and 51 can be suppressed.
When the operation in the 1 st airflow control mode is performed, the distance between the 1 st horizontal damper 41 and the 2 nd horizontal damper 51 on the downstream side is wider than the distance between the 1 st horizontal damper 41 and the 2 nd horizontal damper 51 on the upstream side, and the blown air flows obliquely downward toward the front side, so that the blown air can be blown over a wide area, for example, the floor surface facing the indoor space R.
In a state where the distance between the 1 st horizontal flap 41 and the 2 nd horizontal flap 51 on the downstream side of the flow of the blown air is significantly larger than the distance between the 1 st horizontal flap 41 and the 2 nd horizontal flap 51 on the upstream side of the flow of the blown air, the flow separation from the 1 st and 2 nd horizontal flaps 41 and 51 can be suppressed, and therefore, the blown air can be significantly expanded in the vertical direction.
Further, a part of the air from the outlet flow path 37 flows between the casing main body 31 and the upper surface 41c of the 1 st horizontal flap 41 through between the front edge portion of the outlet 34 and the 1 st end portion 41a of the 1 st horizontal flap 41. At this time, the upper blade surface 41c of the 1 st horizontal baffle plate 41 includes the curved surface 41e which becomes a concave surface, and thereby the coanda effect at the upper blade surface 41c of the 1 st horizontal baffle plate 41 is improved. As a result, a part of the air is drawn to the upper blade surface 41c of the 1 st horizontal baffle plate 41 and flows along the upper blade surface 41c of the 1 st horizontal baffle plate 41. Therefore, for example, when the air from the outlet flow path 37 is cold air, the upper blade surface 41c of the 1 st horizontal baffle plate 41 is covered with the cold air, and condensation on the upper blade surface 41c of the 1 st horizontal baffle plate 41 can be suppressed.
Further, another part of the air from the outlet flow path 37 flows between the wall surface W and the lower blade surface 51d of the 2 nd horizontal blade 51 through between the rear edge portion of the outlet 34 and the 1 st end 51a of the 2 nd horizontal blade 51. At this time, the lower blade surface 51d of the 2 nd horizontal baffle 51 includes the curved surface 51e which becomes a concave surface, and thereby the coanda effect at the lower blade surface 51d of the 2 nd horizontal baffle 51 is improved. As a result, another part of the air is drawn to the lower blade surface 51d of the 2 nd horizontal baffle 51 and flows along the lower blade surface 51d of the 2 nd horizontal baffle 51. Therefore, for example, when the air from the outlet flow path 37 is cold air, the lower blade surface 41d of the 2 nd horizontal flap 51 is covered with the cold air, and condensation on the lower blade surface 51d of the 2 nd horizontal flap 51 can be suppressed.
In the 1 st airflow control mode, the separation angle between the 1 st horizontal flap 41 and the 2 nd horizontal flap 51 is, for example, 60 °, and therefore the blown air can be reliably expanded in the vertical direction.
In the 1 st airflow control mode, the inclination angles θ 1 and θ 2 of the virtual surfaces V1 and V2 with respect to the horizontal plane H are larger than those in the 2 nd airflow control mode, and therefore, the blown air can be reliably caused to flow obliquely downward toward the front side.
In the 1 st airflow control mode, the vertical flaps 61 of the 1 st vertical flap group G1 pivot such that the downstream end of the flow of the blown air approaches the left side, while the vertical flaps 61 of the 2 nd vertical flap group G2 pivot such that the downstream end of the flow of the blown air approaches the right side. Thus, the substantial shape of the air flow path formed by the plurality of vertical baffles 61 of the 1 st and 2 nd vertical baffle groups G1 and G2 is a shape gradually expanding from the upstream side to the downstream side of the flow of the blown air. As a result, the blown air can be expanded in the left-right direction.
Further, since the air conditioner includes the indoor unit 1, the air flow can be prevented from being separated from the 1 st and 2 nd horizontal flaps 41 and 51, and thus the blown air can be expanded in the vertical direction, and the air conditioning unevenness can be reduced.
Fig. 19 shows a result of simulating the vertical expansion of the outlet air of the indoor unit 1 in the 1 st airflow control mode.
The air blown out from the indoor unit 1 spreads in the vertical direction and blows from the upper body to the lower body of the user. Therefore, when the indoor unit 1 performs the heating operation, as shown in fig. 20, the area of the user on the indoor unit 1 side surface where the temperature is the highest (the area of the darkest color in fig. 20) can be increased.
Fig. 21 shows a result of simulating the vertical expansion of the outlet air in the indoor unit 1001 of the comparative example.
The indoor unit 1001 of the comparative example differs from the indoor unit 1 only in having the conventional 1 st and 2 nd horizontal dampers. The inclination angles of the conventional 1 st and 2 nd horizontal flappers with respect to the horizontal plane are set in the same manner as in the simulation of fig. 19. In addition, the lower blade surface and the upper blade surface of the conventional 1 st and 2 nd horizontal baffle plates do not include curved surfaces and are flat surfaces.
The air blown out of the indoor unit 1001 is not expanded in the vertical direction, and is blown only to the lower body of the user. Therefore, when the indoor unit 1001 performs the heating operation, as shown in fig. 22, the area of the surface on the side of the user's indoor unit 1001 where the temperature is the highest (the area of the darkest color in fig. 22) is not large.
Fig. 23 is a vertically and horizontally expanded image of the outlet air of the indoor unit 1.
The blown air passes through a region of, for example, 1.4m in the vertical direction × 1.2m in the horizontal direction at a position 1m ahead of the indoor unit 1. In this case, when a person sits on a chair placed in the above-described place, as shown by the solid line in fig. 24, it is possible to reduce variation in the wind speed of the blown air blown to each part of the person. The speed of the blown air blown to each part of the human body can be set to 1m/s or less. On the other hand, if the indoor unit 1001 of the comparative example is operated, as shown by the broken line in fig. 24, variation in the wind speed of the blown air blown to each part of the person becomes large. Even if the air speed of the blown air blown below the knees of the person can be about 1m/s, the air speed of the blown air blown to the chest of the person exceeds 2 m/s.
In this way, the indoor unit 1 can deliver a soft wind to each part of the user substantially uniformly, as compared with the indoor unit 1001 of the comparative example.
In the above-described embodiment 1, the air conditioner is of a pair type having 1 indoor unit 1 and 1 outdoor unit 2, but may be of a multiple type having a plurality of indoor units 1 and 1 outdoor unit 2.
In embodiment 1 described above, for example, during the cooling operation, the dehumidifying operation, or the heating operation, the control device 100 may appropriately select one of the 1 st airflow control mode, the 2 nd airflow control mode, the 3 rd airflow control mode, and the 4 th airflow control mode or switch between these modes in accordance with a signal from the indoor temperature sensor T5 or the like.
In embodiment 1 described above, for example, during a cooling operation, a dehumidifying operation, or a heating operation, a user may be able to select a desired mode from among the 1 st airflow control mode, the 2 nd airflow control mode, the 3 rd airflow control mode, and the 4 th airflow control mode, for example, by using a remote controller.
In embodiment 1, the angle of separation between the 1 st horizontal baffle 41 and the 2 nd horizontal baffle 51 is 45 °, but may be other than 60 °. In this case, the angle of separation is, for example, in the range of 53 ° to 60 °.
In the above-described embodiment 1, in the 1 st airflow control mode, the downstream-side interval of the vertical baffle 61 disposed at the left end among the plurality of vertical baffles 61 and the upstream-side interval of the vertical baffle 61 disposed at the right end among the plurality of vertical baffles 61 are wider than each other, but these intervals may be substantially the same. In short, in the 1 st airflow control mode, control for expanding the blown air in the left-right direction may be performed, or control for expanding the blown air in the left-right direction may not be performed.
[ 2 nd embodiment ]
Fig. 25 is a control block diagram of an air conditioner according to embodiment 2 of the present invention.
The indoor unit of the air conditioner includes a human detection sensor 91, and the human detection sensor 91 detects a distance to a human in the indoor space R. The control device 200 controls the 1 st and 2 nd horizontal barrier motors 73 and 74 based on the detection result of the human detection sensor 91.
More specifically, in the 3 rd airflow control mode, when the distance detected by the human detection sensor 91 becomes equal to or less than a predetermined distance (for example, 1m), the 3 rd airflow control mode is switched to the 1 st airflow control mode by the control device 200. The distance is, for example, a distance in the front-rear direction between the indoor unit and a person.
In the air conditioner having the above-described configuration, since the same operational effects as those of the above-described embodiment 1 are exhibited, and the 1 st airflow control mode is switched when the distance detected by the human detection sensor 91 becomes equal to or less than the predetermined distance in the 3 rd airflow control mode, the air blown out from the indoor unit can be directly blown to the human in the indoor space R at an appropriate timing.
While the present invention has been described with reference to the specific embodiments, the present invention is not limited to the above-described embodiments 1 and 2 and modifications thereof, and can be implemented with various modifications within the scope of the present invention. For example, a content in which a part of the content described in embodiment 1 or 2 is deleted or replaced may be an embodiment of the present invention. Alternatively, a combination of the modification of embodiment 1 and embodiment 2 may be used as one embodiment of the present invention.
Description of the reference symbols
1 indoor machine
2 outdoor machine
10 indoor fan
11 compressor
12 four-way switching valve
13 outdoor heat exchanger
14 electric expansion valve
15 indoor heat exchanger
16 gas-liquid separator
20 outdoor fan
30 outer cover
34 blow-out opening
41 st horizontal baffle
41c, 51c upper airfoil surface
41d, 51d lower airfoil surface
51 nd 2 horizontal baffle
51f 1 st curved surface
51g No. 2 curved surface
61 vertical baffle
73 st horizontal baffle motor
74 nd 2 nd horizontal baffle motor
83 st 1 vertical baffle group motor
84 nd 2 vertical baffle group motor
91 human detecting sensor
100. 200 control device
G2 No. 2 vertical baffle group
L1 and L2 communication pipes
RC refrigerant circuit
Angle of inclination of theta 1 and theta 2
W wall surface
Claims (7)
1. An air conditioning indoor unit (1), characterized in that the air conditioning indoor unit (1) has:
a casing (30) that is attached to a wall surface (W) facing an air-conditioning target space (R), and that has an outlet (34);
a blower fan (10) disposed in the housing (30) and configured to send air to the air outlet (34);
a 1 st horizontal blade (41) that adjusts the vertical direction of the blown air flowing from the air outlet (34) toward the air-conditioned space (R);
a 1 st drive unit (73) that drives the 1 st horizontal blade (41);
a 2 nd horizontal blade (51) which is disposed closer to the wall surface (W) than the 1 st horizontal blade (41) and adjusts the vertical direction of the blown air;
a 2 nd driving unit (74) that drives the 2 nd horizontal blade (51); and
control devices (100, 200) for controlling the blower fan (10), the 1 st drive unit (73), and the 2 nd drive unit (74),
the air conditioning indoor unit (1) is capable of operating in a 1 st airflow control mode in which a downstream side of a flow of the blown air is wider than an upstream side of the flow of the blown air with respect to a distance between the 1 st horizontal blade (41) and the 2 nd horizontal blade (51), the blown air flows obliquely downward on a side opposite to the wall surface (W), a part of the blown air flows along a lower blade surface (41d) of the 1 st horizontal blade (41), and another part of the blown air flows along an upper blade surface (51c) of the 2 nd horizontal blade (51),
the lower blade surface (41d) of the 1 st horizontal blade (41) includes a curved surface (41f) that bulges, while the upper blade surface (51c) of the 2 nd horizontal blade (51) includes a curved surface (51e) that bulges.
2. An air-conditioning indoor unit (1) according to claim 1,
the lower blade surface (51d) of the 2 nd horizontal blade (51) includes a concave curved surface (51 f).
3. Air conditioning indoor unit (1) according to claim 1 or 2,
in the 1 st airflow control mode, the angle of separation between the 1 st horizontal blade (41) and the 2 nd horizontal blade (51) is in the range of 53 ° to 60 °.
4. An air conditioning indoor unit (1) according to any one of claims 1 to 3,
the air conditioning indoor unit (1) is capable of operating in a 2 nd airflow control mode in which the blown air flows in a horizontal direction,
the angle (theta 1) of the 1 st horizontal blade (41) with respect to the horizontal plane is greater in the 1 st airflow control mode than in the 2 nd airflow control mode, and the angle (theta 2) of the 2 nd horizontal blade (51) with respect to the horizontal plane is greater in the 1 st airflow control mode than in the 2 nd airflow control mode.
5. An air conditioning indoor unit (1) according to any one of claims 1 to 4,
the air conditioning indoor unit (1) has a plurality of vertical blades (61), the plurality of vertical blades (61) adjust the direction of the air blown out in the left-right direction,
in the 1 st airflow control mode, the vertical blade (61) on one side of the plurality of vertical blades (61) assumes a posture in which the end on the downstream side of the flow of the blown air is inclined to one side with respect to the end on the upstream side of the flow of the blown air,
the vertical blade (61) on the other lateral side of the plurality of vertical blades (61) assumes a posture in which the end on the downstream side of the flow of the blown air is inclined to the other lateral side with respect to the end on the upstream side of the flow of the blown air.
6. An air conditioning indoor unit (1) according to any one of claims 1 to 5,
the air conditioning indoor unit (1) has a human detection sensor (91), the human detection sensor (91) detects a distance to a human in the air conditioning target space (R),
the air conditioning indoor unit (1) is capable of performing a 3 rd airflow control mode operation in which the blown air flows downward along the wall surface (W),
in the 3 rd airflow control mode, when the distance detected by the human detection sensor (91) is equal to or less than a predetermined distance, the control device (200) switches from the 3 rd airflow control mode to the 1 st airflow control mode.
7. An air conditioner is characterized by comprising:
an air-conditioning indoor unit (1) according to any one of claims 1 to 6; and
and an air conditioning outdoor unit (2) connected to the air conditioning indoor unit (1) via refrigerant pipes (L1, L2).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-168492 | 2019-09-17 | ||
| JP2019168492A JP7082293B2 (en) | 2019-09-17 | 2019-09-17 | Air conditioning indoor unit and air conditioner |
| PCT/JP2020/033817 WO2021054182A1 (en) | 2019-09-17 | 2020-09-07 | Air-conditioning indoor unit and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114364922A true CN114364922A (en) | 2022-04-15 |
| CN114364922B CN114364922B (en) | 2023-08-01 |
Family
ID=74878196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080063899.5A Active CN114364922B (en) | 2019-09-17 | 2020-09-07 | Air conditioner indoor unit and air conditioner |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4015933B1 (en) |
| JP (1) | JP7082293B2 (en) |
| CN (1) | CN114364922B (en) |
| WO (1) | WO2021054182A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011094877A (en) * | 2009-10-29 | 2011-05-12 | Daikin Industries Ltd | Indoor unit for air conditioner |
| CN102980284A (en) * | 2011-09-02 | 2013-03-20 | 松下电器产业株式会社 | Air conditioner |
| JP2013117368A (en) * | 2011-10-31 | 2013-06-13 | Daikin Industries Ltd | Air-conditioning indoor unit |
| CN103608628A (en) * | 2011-07-01 | 2014-02-26 | 大金工业株式会社 | Air conditioning indoor unit |
| EP2918936A1 (en) * | 2012-10-30 | 2015-09-16 | Mitsubishi Electric Corporation | Air conditioner |
| JP2017125678A (en) * | 2017-04-27 | 2017-07-20 | ダイキン工業株式会社 | Air-conditioning indoor machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4014617B2 (en) | 2006-01-20 | 2007-11-28 | シャープ株式会社 | Air conditioner |
| JP5409825B2 (en) * | 2011-10-18 | 2014-02-05 | 三菱電機株式会社 | Air conditioner indoor unit |
| JP5408227B2 (en) | 2011-10-31 | 2014-02-05 | ダイキン工業株式会社 | Air conditioning indoor unit |
| JP6065076B1 (en) * | 2015-09-10 | 2017-01-25 | ダイキン工業株式会社 | Wall-mounted air conditioning indoor unit |
| JP6137254B2 (en) | 2015-09-10 | 2017-05-31 | ダイキン工業株式会社 | Air conditioning indoor unit |
| CN107461902B (en) * | 2017-07-26 | 2023-08-25 | 广东美的制冷设备有限公司 | Air guide assembly and air conditioner with same |
-
2019
- 2019-09-17 JP JP2019168492A patent/JP7082293B2/en active Active
-
2020
- 2020-09-07 EP EP20865799.9A patent/EP4015933B1/en active Active
- 2020-09-07 WO PCT/JP2020/033817 patent/WO2021054182A1/en unknown
- 2020-09-07 CN CN202080063899.5A patent/CN114364922B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011094877A (en) * | 2009-10-29 | 2011-05-12 | Daikin Industries Ltd | Indoor unit for air conditioner |
| CN103608628A (en) * | 2011-07-01 | 2014-02-26 | 大金工业株式会社 | Air conditioning indoor unit |
| CN102980284A (en) * | 2011-09-02 | 2013-03-20 | 松下电器产业株式会社 | Air conditioner |
| JP2013117368A (en) * | 2011-10-31 | 2013-06-13 | Daikin Industries Ltd | Air-conditioning indoor unit |
| EP2918936A1 (en) * | 2012-10-30 | 2015-09-16 | Mitsubishi Electric Corporation | Air conditioner |
| JP2017125678A (en) * | 2017-04-27 | 2017-07-20 | ダイキン工業株式会社 | Air-conditioning indoor machine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4015933B1 (en) | 2024-05-29 |
| EP4015933A4 (en) | 2022-10-05 |
| EP4015933A1 (en) | 2022-06-22 |
| JP2021046957A (en) | 2021-03-25 |
| CN114364922B (en) | 2023-08-01 |
| JP7082293B2 (en) | 2022-06-08 |
| WO2021054182A1 (en) | 2021-03-25 |
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