CN114364922B - Air conditioner indoor unit and air conditioner - Google Patents
Air conditioner indoor unit and air conditioner Download PDFInfo
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- CN114364922B CN114364922B CN202080063899.5A CN202080063899A CN114364922B CN 114364922 B CN114364922 B CN 114364922B CN 202080063899 A CN202080063899 A CN 202080063899A CN 114364922 B CN114364922 B CN 114364922B
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- Prior art keywords
- air
- horizontal
- indoor unit
- control mode
- horizontal blade
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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
- 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 Conditioning Control Device (AREA)
- Air-Flow Control Members (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
An air conditioning indoor unit (1) is provided with a 1 st horizontal blade (41) and a 2 nd horizontal blade (51) arranged on the wall surface (W) side of the 1 st horizontal blade (41). The operation of the 1 st airflow control mode is enabled, in which, 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 side opposite to the wall surface (W) side, and a part of the blown air flows along the lower airfoil surface of the 1 st horizontal blade (41), and the other part of the blown air flows along the upper airfoil surface of the 2 nd horizontal blade (51). The lower airfoil surface of the 1 st horizontal blade (41) includes a convex curved surface, while the upper airfoil surface of the 2 nd horizontal blade (51) includes a convex curved surface.
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 having a casing provided with an outlet, a 1 st horizontal blade attached to a front edge portion of the outlet, and a 2 nd horizontal blade attached to a rear edge portion of the outlet (for example, refer to 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 of the casing to the indoor space.
Prior art literature
Patent literature
Patent document 1: japanese patent laid-open No. 2017-125678
Disclosure of Invention
Problems to be solved by the invention
In the conventional indoor unit of an air conditioner, for example, when the distance between the upstream end portions of the flow of the air blown out of the 1 st and 2 nd horizontal blades is maintained and the distance between the downstream end portions of the flow of the air blown out of the 1 st and 2 nd horizontal blades is further increased, the air flow is attached to only one of the 1 st and 2 nd horizontal blades in order to further expand the air blown out in the vertical direction.
The invention provides an air conditioner indoor unit capable of inhibiting air flow from stripping from 1 st and 2 nd horizontal blades.
Means for solving the problems
An air conditioner indoor unit according to an embodiment of the present invention includes: a housing which is mounted on a wall surface facing the air-conditioning target space and has a blow-out port; a blower fan disposed in the housing and configured to send air to the air outlet; a 1 st horizontal blade for adjusting a vertical direction of the blown air flowing from the air outlet toward the air-conditioning target 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 than the 1 st horizontal blade and adjusts a vertical wind 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 driving unit, and the 2 nd driving unit, wherein the air conditioning indoor unit is capable of performing an operation in a 1 st airflow control mode, wherein in the 1 st airflow control mode, 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 gap between the 1 st horizontal blade and the 2 nd horizontal blade, the blown air flows obliquely downward on a side opposite to the wall surface side, a part of the blown air flows along a lower airfoil surface of the 1 st horizontal blade, and another part of the blown air flows along an upper airfoil surface of the 2 nd horizontal blade, the lower airfoil surface of the 1 st horizontal blade includes a convex curved surface, and the upper airfoil surface of the 2 nd horizontal blade includes a convex curved surface.
Here, the lower airfoil surface of the 1 st horizontal blade corresponds to a surface located on the space side of the air conditioner when the operation is stopped. The lower surface of the 2 nd horizontal blade corresponds to a surface located on the opposite side (inner side of the casing) from the space to be conditioned 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 airfoil surface of the 1 st horizontal blade. The lower airfoil surface of the 1 st horizontal blade includes a convex curved surface, whereby the coanda effect at the lower airfoil surface of the 1 st horizontal blade is improved. On the other hand, the other part of the blown air flows along the upper airfoil surface of the 2 nd horizontal blade. The upper airfoil surface of the 2 nd horizontal vane also includes a convex curved surface, whereby the coanda effect at the upper airfoil surface of the 2 nd horizontal vane is enhanced. Therefore, the air flow can be prevented from being peeled off from the 1 st and 2 nd horizontal blades.
In one embodiment, the lower airfoil surface of the 2 nd horizontal vane includes a concave curved surface.
Here, the lower airfoil surface of the 2 nd horizontal blade corresponds to a surface located on the space side of the air conditioner when the operation is stopped.
According to the above-described mode, the lower airfoil surface of the 2 nd horizontal blade includes a concavely curved surface, and thus, an air flow flowing along the lower airfoil surface of the 2 nd horizontal blade is obtained.
In one embodiment, in the 1 st airflow control mode, a separation angle between the 1 st horizontal vane and the 2 nd horizontal vane is in a range of 53 ° to 60 °.
According to the above aspect, in the 1 st airflow control mode, the separation angle between the 1 st horizontal blade and the 2 nd horizontal blade is set to be in the range of 53 ° to 60 °, so that the possibility of airflow separation at the lower airfoil surface of the 1 st horizontal blade and the upper airfoil surface of the 2 nd horizontal blade can be reduced, and the outlet air can be reliably expanded in the up-down direction.
In one embodiment, the air conditioning indoor unit is configured to perform an operation 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 larger in the 1 st airflow control mode than in the 2 nd airflow control mode, and wherein an angle formed by the 2 nd horizontal blade with respect to a horizontal plane is larger 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 embodiment includes a plurality of vertical blades that adjust a direction of a wind in a left-right direction of the blown air, wherein, in the 1 st airflow control mode, one of the plurality of vertical blades takes a posture in which an end portion on a downstream side of the flow of the blown air is inclined to one side than an end portion on an upstream side of the flow of the blown air, and the other of the plurality of vertical blades takes a posture in which an end portion on a downstream side of the flow of the blown air is inclined to the other side than an end portion on an upstream side of the flow of the blown air.
According to the above aspect, in the 1 st airflow control mode, the vertical vane on one side of the plurality of vertical vanes and the vertical vane on the other side of the plurality of vertical vanes 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 has a human sensor that detects a distance to a person in the air conditioning target space, and is configured to perform an operation in a 3 rd airflow control mode in which the blown air flows downward along the wall surface, and to switch from the 3 rd airflow control mode to the 1 st airflow control mode by the control device when the distance detected by the human 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 sensor is equal to or less than the predetermined distance, the 1 st airflow control mode is switched, and therefore, the blown air can be blown directly to the person in the space to be air-conditioned at an appropriate timing.
An air conditioner indoor unit according to an embodiment 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, with the air conditioning indoor unit, the air flow can be prevented from being peeled off from the 1 st and 2 nd horizontal blades, and therefore, the blown air can be expanded in the up-down 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 diagram 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 a 1 st horizontal barrier of embodiment 1 of the present invention.
Fig. 10 is a plan view of the 1 st horizontal barrier.
Fig. 11 is a bottom view of the 1 st horizontal barrier.
Fig. 12 is a cross-sectional view taken along line XII-XII of fig. 11 in the direction of the arrow.
Fig. 13 is a cross-sectional view taken along line XIII-XIII of fig. 11 in the direction of the arrow.
Fig. 14 is a perspective view of a 2 nd horizontal barrier of embodiment 1 of the present invention.
Fig. 15 is a plan view of the 2 nd horizontal barrier.
Fig. 16 is a bottom view of the 2 nd horizontal barrier.
Fig. 17 is a sectional view of fig. 16, viewed in the direction of the arrow on line XVII-XVII.
Fig. 18 is a cross-sectional view of fig. 16, taken along line XVIII-XVIII, as viewed in the direction of the arrow.
Fig. 19 is a simulation result diagram of the blown air of the indoor unit according to embodiment 1.
Fig. 20 is another simulation result diagram of the blown air of the indoor unit according to embodiment 1.
Fig. 21 is a simulation result diagram of the blown air of the indoor unit of the comparative example.
Fig. 22 is a simulation result diagram of the blown air of the indoor unit of the comparative example.
Fig. 23 is an image of the blown air of the indoor unit according to embodiment 1.
Fig. 24 is a view for explaining the wind speed of the blown air of 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 with reference to the embodiments shown in the drawings. In the drawings, common parts are denoted by the same reference numerals, and overlapping description thereof is omitted.
[ embodiment 1 ]
Fig. 1 shows a refrigerant circuit RC of an air conditioner according to embodiment 1 of the present invention. The air conditioner is a pair-to-pair type air conditioner in which an indoor unit 1 and an outdoor unit 2 are connected one to 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 a discharge side of the compressor 11; an outdoor heat exchanger 13, one end of which is 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, one end of which is connected to the other end of the motor-operated expansion valve 14 via a shutoff valve 21 and a communication pipe L1; and a gas-liquid separator 16, one end of which is connected to the other end of the indoor heat exchanger 15 via a communication pipe L2, a shutoff valve 22, and a four-way switching valve 12, and the other end of which is 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 electric expansion valve 14 is an example of a pressure reducing mechanism.
The indoor unit 1 has an indoor heat exchanger temperature sensor T4 that detects the temperature of the indoor heat exchanger 15, and an indoor temperature sensor T5 that detects the indoor temperature. Further, an indoor fan 10 that circulates indoor air through an indoor heat exchanger 15 is provided in the indoor unit 1.
The outdoor unit 2 includes an outdoor heat exchanger temperature sensor T1 that detects the temperature of the outdoor heat exchanger 13, an outside air temperature sensor T2 that detects the outside air temperature, and an evaporation temperature sensor T3 that detects the evaporation temperature of the motor-operated expansion valve 14. The outdoor unit 2 is provided with an outdoor fan 20 for supplying outside air to the outdoor heat exchanger 13.
The air conditioner includes a remote controller (hereinafter referred to as "remote controller"), not shown. By operating the remote controller, 1 operation such as cooling operation, dehumidifying operation, heating operation, etc. can be started or stopped, or other operations can be switched. 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 from the indoor unit 1 can be adjusted.
When the cooling operation or the dehumidifying operation is selected by the remote controller and the four-way switching valve 12 is switched to the solid line state of fig. 1, the refrigerant from the compressor 11 flows in the refrigerant circuit RC in the order of the four-way switching valve 12, the outdoor heat exchanger 13, the motor-operated expansion valve 14, the indoor heat exchanger 15, the four-way switching valve 12, and the gas-liquid separator 16 as indicated by the solid line arrow. On the other hand, when the heating operation is selected and the four-way switching valve 12 is switched to the state of the broken line in fig. 1, the refrigerant from the compressor 11 flows in the refrigerant circuit RC in the order of the four-way switching valve 12, the indoor heat exchanger 15, the motor-operated expansion valve 14, the outdoor heat exchanger 13, the four-way switching valve 12, and the gas-liquid separator 16 as indicated by the arrow of the broken line.
Fig. 2 schematically illustrates a longitudinal section of the indoor unit 1 in an operation stopped state. The indoor unit 1 is wall-mounted.
The indoor unit 1 has a casing 30 composed of 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 accommodates 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 composed of a plurality of members, and has a front face portion 31a, an upper face portion 31b, a rear face portion 31c, and a lower face portion 31d. A front panel 32 is openably and closably attached to the front surface 31 a. Further, a suction port (not shown) is provided from the front surface portion 31a to the upper surface portion 31 b.
The front panel 32 forms a front surface 31a of the indoor unit 1, and has a flat shape without a suction port, for example. The upper end portion of the front panel 32 is rotatably supported by the upper surface portion 31b of the housing main body 31, and can be operated by a hinge.
The indoor fan 10 and the indoor heat exchanger 15 are mounted 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 indoor heat exchanger 15 has an inverted V-shape with both ends facing downward and bent portions located on the upper side when viewed from the side. 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 31d of the casing main body 31.
The 1 st and 2 nd partition walls 35 and 36 are provided in the housing main body 31. The space sandwiched between the 1 st partition wall 35 and the 2 nd partition wall 36 serves as a blowout flow path 37 connecting the indoor fan 10 and the blowout port 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 outdoors through a drain pipe (not shown).
The indoor unit 1 further includes a 1 st horizontal baffle 41 and a 2 nd horizontal baffle 51 disposed on the rear side (wall surface W side) of the 1 st horizontal baffle 41. The 1 st horizontal baffle 41 and the 2 nd horizontal baffle 51 adjust the vertical direction of the blown air (air flowing through the blown-out flow path 37) blown out from the air outlet 34. The 1 st horizontal baffle 41 is an example of the 1 st horizontal vane. The 2 nd horizontal baffle 51 is an example of the 2 nd horizontal vane.
The 1 st horizontal baffle 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 barrier 41 is rotatably attached to the lower surface 31d of the housing main body 31.
More specifically, the 1 st horizontal barrier 41 has a piece 41g (shown in fig. 9 to 13) connected to the 2 nd end 41b. The plate 41g is attached to the attachment portion 38 of the housing main body 31, and the 1 st horizontal barrier 41 is rotatable about the attachment portion 38. When the operation of the indoor unit 1 is stopped, the 1 st horizontal barrier 41 assumes a posture along the front side 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 barrier 41 is rotated by driving the 1 st horizontal barrier motor 73 (shown in fig. 3 and 4), and the interval between the front side 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 barrier 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 4-phase winding stepping motor is used.
Like the 1 st horizontal baffle 41, the 2 nd horizontal baffle 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 barrier 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 baffle 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. Thus, the 2 nd horizontal shutter 51 rotates around the 1 st end 51a, and the 2 nd end 51b is separated from the mounting portion 38, thereby opening the blowout port 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 air flow in the left-right direction of the blown air. The plurality of vertical baffles 61 are arranged at predetermined intervals along the longitudinal direction of the air outlet 34 (the direction perpendicular to the paper surface of fig. 2) in the air outlet channel 37. The vertical barrier 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 shutters 41 and 51 are supported by the 1 st and 2 nd rotation shafts 71 and 72 so as to be rotatable in the up-down direction. The 1 st and 2 nd horizontal barrier motors 73 and 74 rotationally drive the 1 st and 2 nd rotation shafts 71 and 72, whereby the 1 st and 2 nd horizontal barriers 41 and 51 are rotated 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 barriers 61 are divided into 1 st vertical barrier group G1 and 2 nd vertical barrier group G2. The vertical barrier 61 constituting the 1 st vertical barrier group G1 is an example of one side vertical blade among the plurality of vertical blades. The vertical barrier 61 constituting the 2 nd vertical barrier group G2 is an example of a vertical blade on the other side among the plurality of vertical blades.
The 1 st vertical barrier group G1 is constituted by a plurality of vertical barriers 61 facing the opening area on the left side of the center in the left-right direction of the air outlet 34. The vertical barriers 61 belonging to the 1 st vertical barrier group G1 are connected to each other by the 1 st connecting rod 81. Further, the 1 st vertical barrier group motor 83 drives the 1 st link 81 in the left-right direction, whereby the plurality of vertical barriers 61 rotate in the left-right direction around respective rotation shafts (not shown).
The 2 nd vertical barrier group G2 is constituted by a plurality of vertical barriers 61 facing the opening area on the right side of the center in the left-right direction of the air outlet 34. The vertical barrier 61 belonging to the 2 nd vertical barrier group G2 is connected to the 2 nd connecting rod 82 in the same manner as the vertical barrier 61 belonging to the 1 st vertical barrier group G1, and can be rotated by the 2 nd vertical barrier 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 control device 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 provided in the indoor unit 1, and is an LED or the like for displaying at least the 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 is capable of operating in a 1 st airflow control mode, a 2 nd airflow control mode, a 3 rd airflow control mode, and a 4 th airflow control mode. According to the above-described signal or the like, 1 airflow control mode is automatically selected from among a 1 st airflow control mode, a 2 nd airflow control mode, a 3 rd airflow control mode, and a 4 th airflow control mode, which will be described later, or is switched to another airflow control mode. Further, by operating the remote controller described above, 1 mode out of the 1 st air flow control mode, the 2 nd air flow control mode, the 3 rd air flow control mode, and the 4 th air flow control mode can also be selected.
< mode of airflow control 1 >
Fig. 5 schematically illustrates 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 baffle 41 and the 2 nd horizontal baffle 51 is wider on the downstream side than on the upstream side of the flow of the blown air, and the blown air flowing from the air outlet 34 to the indoor space R flows obliquely downward on the front side (on the side opposite to the wall surface W side).
More specifically, when the virtual plane V1 passing through the center of the 1 st end 41a of the 1 st horizontal baffle 41 and the center of the 2 nd end 41b of the 1 st horizontal baffle 41 in the thickness direction is defined, the inclination angle θ1 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, when the virtual plane V2 passing through the center in the thickness direction of the 1 st end 51a of the 2 nd horizontal baffle 51 and the center in the thickness direction of the 2 nd end 41b of the 2 nd horizontal baffle 51 is defined, the inclination angle θ2 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 baffle 41 and the 2 nd horizontal baffle 51 is, for example, 60 °. When the inclination angles θ1 and θ2 are positive (+) angles, the front sides of the virtual planes V1 and V2 are positioned below the rear sides of the virtual planes V1 and V2. The above-mentioned separation angle corresponds to an angle obtained by subtracting the inclination angle θ1 from the inclination angle θ2.
In other words, the 1 st horizontal baffle 41 is turned 25 ° from the state when the operation of the indoor unit 1 is stopped, and is set to the posture at the 1 st airflow control mode. On the other hand, when the 2 nd horizontal baffle 51 is rotated 70 ° from the state when the operation of the indoor unit 1 is stopped, the 1 st air flow control mode is set. Here, the angle obtained by subtracting the rotation angle of the 1 st horizontal barrier 41 from the rotation angle of the 2 nd horizontal barrier 51 is the separation angle of the 1 st horizontal barrier 41 and the 2 nd horizontal barrier 51 in the 1 st airflow control mode.
In the 1 st airflow control mode, each vertical barrier 61 of the 1 st vertical barrier group G1 is inclined so that the downstream end of the flow of the blown air is located on the left side of the housing 30 than the upstream end of the flow of the blown air. In the 1 st airflow control mode, each vertical barrier 61 of the 2 nd vertical barrier group G1 is inclined so that the downstream end of the flow of the blown air is located on the right side of the housing 30 than the upstream end of the flow of the blown air.
More specifically, the interval between the vertical barrier 61 of the 1 st vertical barrier group G1 and the vertical barrier 61 of the 2 nd vertical barrier group G2 is wider on the downstream side than the upstream side of the flow of the blown air. In other words, each vertical barrier 61 of the 1 st vertical barrier group G1 rotates such that an end portion located on the downstream side of the flow of the blown air is closer to the left side surface portion of the casing main body 31 and an end portion located on the upstream side of the flow of the blown air is farther from the left side surface portion of the casing main body 31. On the other hand, each vertical barrier 61 of the 2 nd vertical barrier group G2 rotates such that an end portion located on the downstream side of the flow of the blown air is closer to the right side surface portion of the casing main body 31 and an end portion located on the upstream side of the flow of the blown air is farther from the right side surface portion of the casing main body 31.
< mode of airflow control >
Fig. 6 schematically illustrates a longitudinal section of the indoor unit 1 in the 2 nd airflow control mode.
In the 2 nd airflow control mode, the blown-out air flowing from the air outlet 34 to the indoor space R flows in the horizontal direction.
More specifically, in the 2 nd airflow control mode, the inclination angle θ1 of the virtual plane V1 with respect to the horizontal plane H is, for example, -5 °. On the other hand, in the 2 nd airflow control mode, the inclination angle θ2 of the virtual plane V2 with respect to the horizontal plane H is, for example, +15°. At this time, the inclination angles θ1, θ2 are smaller than those in the 1 st airflow control mode. Conversely, the inclination angles θ1, θ2 in the 1 st airflow control mode are larger than the inclination angles θ1, θ2 in the 2 nd airflow control mode. When the inclination angle θ1 is negative (-), the front side of the virtual plane V1 is located above the rear side of the virtual plane V1.
In other words, the 1 st horizontal baffle 41 is turned 10 ° from the state when the operation of the indoor unit 1 is stopped, and is set to the posture in the 2 nd airflow control mode. On the other hand, when the 2 nd horizontal baffle 51 is rotated 15 ° from the state when the operation of the indoor unit 1 is stopped, the 2 nd air flow control mode is set.
< mode of airflow control 3 >
Fig. 7 schematically illustrates a longitudinal section of the indoor unit 1 in the 3 rd airflow control mode.
In the 3 rd airflow control mode, the blown-out air flowing from the air outlet 34 to the indoor space R flows downward along the wall surface W.
More specifically, in the 3 rd airflow control mode, the inclination angle θ1 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 θ2 of the virtual plane V2 with respect to the horizontal plane H is, for example, +100°.
In other words, the 1 st horizontal baffle 41 is turned 125 ° from the state when the operation of the indoor unit 1 is stopped, and is in the 3 rd airflow control mode. On the other hand, when the 2 nd horizontal baffle 51 is rotated 100 ° from the state when the operation of the indoor unit 1 is stopped, the 3 rd air flow control mode is set.
< mode of flow control of No. 4 >
Fig. 8 schematically illustrates 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 baffle 41 and the 2 nd horizontal baffle 51 is wider on the downstream side than on the upstream side of the flow of the blown air, and the blown air flowing from the air outlet 34 to the indoor space R flows obliquely downward toward the front side. In this case, the width of the blown air in the up-down direction is smaller than in the 1 st airflow control mode.
More specifically, in the 4 th airflow control mode, the inclination angle θ1 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 θ2 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 baffle 41 and the 2 nd horizontal baffle 51 is, for example, 50 °. The above-mentioned separation angle corresponds to an angle obtained by subtracting the inclination angle θ1 from the inclination angle θ2.
In other words, the 1 st horizontal barrier 41 is turned 15 ° from the state when the operation of the indoor unit 1 is stopped, and is in the 4 th airflow control mode. On the other hand, when the 2 nd horizontal baffle 51 is rotated 52.5 ° from the state when the operation of the indoor unit 1 is stopped, the 1 st air flow control mode is set. Here, the angle obtained by subtracting the rotation angle of the 1 st horizontal barrier 41 from the rotation angle of the 2 nd horizontal barrier 51 is the separation angle of the 1 st horizontal barrier 41 and the 2 nd horizontal barrier 51 in the 4 th airflow control mode.
< Structure of 1 st horizontal baffle 41 >
Fig. 9 is a view of the upper wing 41c of the 1 st horizontal baffle 41 as seen obliquely. Fig. 10 is a view of the upper wing 41c of the 1 st horizontal barrier 41 from the front. Fig. 11 is a view of the lower wing surface 41d of the 1 st horizontal barrier 41 as seen from the front. Fig. 12 is a cross-sectional view as seen from line XII-XII of fig. 11. Fig. 13 is a sectional view as seen from line XIII-XIII of fig. 11. The cross-sectional view taken along line XII '-XII' in fig. 11 is the same as that in fig. 12, and therefore is not shown.
As shown in fig. 9 to 13, the 1 st horizontal baffle 41 has the following shape: the thickness becomes thinner as the side of the 1 st end 41a approaches the 2 nd end 41b side except for a part of the 1 st end 41a side. The 1 st horizontal baffle 41 has an upper airfoil surface 41c facing the casing main body 31 when the operation of the indoor unit 1 is stopped, and a lower airfoil surface 41d facing the indoor space when the operation of the indoor unit 1 is stopped.
The upper airfoil surface 41c includes a curved surface 41e that is curved and recessed in the short-side direction of the 1 st horizontal baffle 41. In other words, when the 1 st horizontal baffle 41 is cut along the short side direction, the line indicating the cross section of the upper airfoil surface 41c includes a curved line protruding toward the lower airfoil surface 41d. Here, the short side direction of the 1 st horizontal barrier 41 corresponds to a direction orthogonal to the long side direction of the 1 st horizontal barrier 41 and the thickness direction of the 1 st horizontal barrier 41.
The lower wing 41d includes a curved surface 41f that is curved and bulged in the short side direction of the 1 st horizontal baffle 41. In other words, when the 1 st horizontal baffle 41 is cut along the short side direction, the line indicating the cross section of the lower airfoil surface 41d includes a curved line protruding to the opposite side of the upper airfoil surface 41 c.
Further, the curvature radius of the curved surface 41e of the upper airfoil surface 41c is set smaller than the curvature radius of the curved surface 41f of the lower airfoil surface 41d of the 1 st horizontal baffle 41.
The curved surfaces 41e and 41f are provided from one end in the longitudinal direction of the 1 st horizontal barrier 41 to the other end in the longitudinal direction of the 1 st horizontal barrier 41.
< Structure of 2 nd horizontal baffle plate 51 >
Fig. 14 is a view of the upper wing surface 51c of the 2 nd horizontal baffle 51 as seen obliquely. Fig. 15 is a view of the upper wing surface 51c of the 2 nd horizontal barrier 51 from the front. Fig. 16 is a view of the lower wing surface 51d of the 2 nd horizontal barrier 51 from the front. Fig. 17 is a sectional view as seen from the line XVII-XVII of fig. 16. Fig. 18 is a cross-sectional view taken along 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 illustration thereof is omitted.
As shown in fig. 14 to 18, the 2 nd horizontal baffle plate 51 has an upper airfoil surface 51c facing the air outlet flow path 37 when the operation of the indoor unit 1 is stopped, and a lower airfoil surface 51d facing 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 wing surface 51c includes a curved surface 51e that is curved and bulged in the short side direction of the 2 nd horizontal baffle 51. In other words, when the 2 nd horizontal baffle 51 is cut along the short side direction, the line indicating the cross section of the upper airfoil surface 51c includes a curved line protruding to the opposite side of the lower airfoil surface 51d. Here, the short side direction of the 2 nd horizontal barrier 51 corresponds to a direction orthogonal to the long side direction of the 2 nd horizontal barrier 51 and the thickness direction of the 2 nd horizontal barrier 51.
Further, a concave portion 51h on the 2 nd end 51b side is provided in the upper airfoil surface 51 c. When the operation of the indoor unit 1 is stopped, a part of the mounting portion 38 enters the recess 51h, and the 2 nd horizontal baffle 51 does not interfere with the mounting portion 38.
The lower wing surface 51d includes a 1 st curved surface 51f curved and recessed in the short side direction of the 2 nd horizontal baffle 51, and a 2 nd curved surface 51g curved and raised in the short side direction of the 2 nd horizontal baffle 51. In other words, when the 2 nd horizontal baffle 51 is cut along the short side direction, the line indicating the cross section of the lower airfoil surface 51d includes a bending line protruding toward the upper airfoil surface 51c side and a bending line protruding toward the opposite side to the upper airfoil surface 51 c.
The 1 st curved surface 51f is provided on the 2 nd end 51b side of the lower airfoil surface 51d, and overlaps the curved surface 51e in the thickness direction of the 2 nd horizontal baffle plate 51.
The 2 nd curved surface 51g is provided on the 1 st end 51a side of the lower airfoil surface 51d, and is connected to the 1 st curved surface 51 f.
The radius of curvature (for example, 396mm or more) of the curved surface 51e of the upper airfoil surface 51c is set smaller than the radius of curvature (for example, 1800mm or more) of the 1 st curved surface 51f of the lower airfoil surface 51 d. In other words, the radius of curvature of the 1 st curved surface 51f of the lower airfoil surface 51d of the 2 nd horizontal baffle 51 is set in the range of 4 to 5 times the radius of curvature of the curved surface 51e of the upper airfoil surface 51c of the 2 nd horizontal baffle 51.
The 2 nd horizontal barrier 51 is formed with the same shape as the cross section along the short side direction at both ends in the long side direction. In contrast, both end portions in the longitudinal direction of the 2 nd horizontal baffle 51 have a different sectional shape from the other portions of the 2 nd horizontal baffle 51.
To describe in more detail, the upper wing surface 51c at both ends in the longitudinal direction of the 2 nd horizontal baffle 51 does not include the curved surface 51e. The lower wing surface 51d at both ends in the longitudinal direction of the 2 nd horizontal baffle 51 does not include the 1 st and 2 nd curved surfaces 51f and 51g. In fig. 14, a region in which the curved surface 51e is formed is shown by a broken line.
According to the air conditioner having the above configuration, when the operation (for example, the heating operation) in the 1 st airflow control mode is performed, the distance between the 1 st horizontal baffle 41 and the 2 nd horizontal baffle 51 is wider on the downstream side 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 W side. At this time, a part of the blown air flows along the lower wing surface 41d of the 1 st horizontal baffle 41. The lower wing surface 41d of the 1 st horizontal baffle 41 includes a curved surface 41f that becomes convex, whereby the coanda effect at the lower wing surface 41d of the 1 st horizontal baffle 41 is improved. As a result, a part of the blown air is strongly pulled up to the lower wing surface 41d of the 1 st horizontal baffle 41. On the other hand, the other part of the blown air flows along the upper wing surface 51c of the 2 nd horizontal baffle. The upper wing surface 51c of the 2 nd horizontal baffle 51 includes a curved surface 51e that becomes convex, whereby the coanda effect at the upper wing 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 wing surface 51c of the 2 nd horizontal baffle plate 51.
In this way, a part of the blown air is strongly pulled up to the lower wing surface 41d of the 1 st horizontal baffle 41, while another part of the blown air is strongly pulled up to the lower wing surface 51d of the 2 nd horizontal baffle 51, so that the air flow can be suppressed from being peeled off from the 1 st and 2 nd horizontal baffles 41 and 51.
When the operation in the 1 st airflow control mode is performed, the distance between the 1 st horizontal baffle 41 and the 2 nd horizontal baffle 51 on the downstream side is wider than the distance between the 1 st horizontal baffle 41 and the 2 nd horizontal baffle 51 on the upstream side, and the blown air flows obliquely downward on the front side, so that the blown air can be blown over a wide area, for example, the ground surface facing the indoor space R.
In a state where the distance between the 1 st horizontal baffle 41 and the 2 nd horizontal baffle 51 on the downstream side of the flow of the blown air is widened more than the distance between the 1 st horizontal baffle 41 and the 2 nd horizontal baffle 51 on the upstream side of the flow of the blown air, the separation of the air from the 1 st and 2 nd horizontal baffles 41, 51 can be suppressed, and therefore the blown air can be greatly expanded in the up-down direction.
A part of the air from the air outlet channel 37 flows between the front edge of the air outlet 34 and the 1 st end 41a of the 1 st horizontal baffle 41, and between the housing main body 31 and the upper surface 41c of the 1 st horizontal baffle 41. At this time, the upper airfoil surface 41c of the 1 st horizontal baffle 41 includes the curved surface 41e that becomes a concave surface, whereby the coanda effect at the upper airfoil surface 41c of the 1 st horizontal baffle 41 is improved. As a result, a part of the air is drawn to the upper wing 41c of the 1 st horizontal baffle 41, and flows along the upper wing 41c of the 1 st horizontal baffle 41. Therefore, for example, when the air from the blowout flow path 37 is cool air, the upper airfoil surface 41c of the 1 st horizontal baffle 41 is covered with cool air, and dew condensation on the upper airfoil surface 41c of the 1 st horizontal baffle 41 can be suppressed.
The other part of the air from the air outlet channel 37 flows between the wall surface W and the lower surface 51d of the 2 nd horizontal baffle 51 through the space between the rear edge of the air outlet 34 and the 1 st end 51a of the 2 nd horizontal baffle 51. At this time, the lower wing surface 51d of the 2 nd horizontal baffle plate 51 includes the curved surface 51e which becomes a concave surface, whereby the coanda effect at the lower wing surface 51d of the 2 nd horizontal baffle plate 51 is improved. As a result, the other part of the air is drawn to the lower wing surface 51d of the 2 nd horizontal baffle plate 51, and flows along the lower wing surface 51d of the 2 nd horizontal baffle plate 51. Therefore, for example, when the air from the blowout flow path 37 is cool air, the lower airfoil surface 51d of the 2 nd horizontal baffle 51 is covered with cool air, and dew condensation at the lower airfoil surface 51d of the 2 nd horizontal baffle 51 can be suppressed.
In addition, in the 1 st airflow control mode, the separation angle between the 1 st horizontal baffle 41 and the 2 nd horizontal baffle 51 is 60 °, for example, and therefore, the blown air can be reliably expanded in the up-down direction.
In the 1 st airflow control mode, the inclination angles θ1, θ2 of the virtual planes V1, V2 with respect to the horizontal plane H are increased as compared with the case of 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 baffles 61 of the 1 st vertical baffle group G1 are rotated so that the downstream end of the flow of the blown air approaches the left side, while the vertical baffles 61 of the 2 nd vertical baffle group G2 are rotated so 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 gradually expanded from the upstream side toward 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 peeled off from the 1 st and 2 nd horizontal baffles 41 and 51, and thus the blown air can be expanded in the up-down direction, and the air-conditioning unevenness can be reduced.
Fig. 19 shows the result of simulating the expansion of the blown air of the indoor unit 1 in the up-down direction in the 1 st airflow control mode.
The blown air from the indoor unit 1 expands in the vertical direction, and is blown 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 (the area with the darkest color in fig. 20) in which the temperature is highest on the surface of the user on the indoor unit 1 side can be increased.
Fig. 21 shows the result of simulating the expansion of the blown air of the indoor unit 1001 of the comparative example in the up-down direction.
The indoor unit 1001 of the comparative example differs from the indoor unit 1 only in that it has the conventional 1 st and 2 nd horizontal baffle plates. The tilt angles of the conventional 1 st and 2 nd horizontal baffles with respect to the horizontal plane were set in the same manner as in the simulation of fig. 19. The lower wing surface and the upper wing surface of the conventional 1 st and 2 nd horizontal baffles each do not include a curved surface and are flat surfaces.
Such blown air from the indoor unit 1001 does not extend 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 (the area with the deepest color in fig. 22) of the surface of the user on the indoor unit 1001 side is not large.
Fig. 23 is a top-bottom-left-right expanded image of the blown air of the indoor unit 1.
In a place 1m in front of the indoor unit 1, the blown air passes through a region of, for example, 1.4m in the vertical direction and 1.2m in the horizontal direction. 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, the variation in the wind speed of the blown air blown to each part of the person can be reduced. The wind speed of the blown air blown to each part of the person 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, the variation in the wind speed of the blown air blown to each part of the person increases. In addition, even if the wind speed of the blown air blown under the knee of the person can be about 1m/s, the wind speed of the blown air blown to the chest of the person exceeds 2m/s.
As described above, the indoor unit 1 can deliver gentle wind to each part of the user substantially uniformly as compared with the indoor unit 1001 of the comparative example.
In embodiment 1, the air conditioner is of a paired 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, for example, at the time of cooling operation, dehumidifying operation, or 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 may switch between these modes, based on a signal from the indoor temperature sensor T5 or the like.
In embodiment 1, for example, the user may be able to select a desired mode from 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 by using a remote controller, for example, during cooling operation, dehumidifying operation, or heating operation.
In the embodiment 1, the separation angle 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 above-mentioned separation angle falls within a range of, for example, 53 ° to 60 °.
In embodiment 1, in the 1 st airflow control mode, the interval on the downstream side is wider than the interval on the upstream side with respect to the vertical baffle plate 61 arranged at the left end of the plurality of vertical baffle plates 61 and the vertical baffle plate 61 arranged at the right end of the plurality of vertical baffle plates 61, but these intervals may be substantially the same. In other words, in the 1 st airflow control mode, the control for expanding the blown-out air in the left-right direction may be performed, or the control for expanding the blown-out air in the left-right direction may not be performed.
[ embodiment 2 ]
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 has a human sensor 91, and the human sensor 91 detects a distance from a person 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 sensor 91.
More specifically, in the 3 rd airflow control mode, when the distance detected by the human sensor 91 is equal to or less than a predetermined distance (for example, 1 m), 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 the person.
In the air conditioner having the above configuration, the same operational effects as those of the above embodiment 1 are exhibited, and in the 3 rd airflow control mode, when the distance detected by the human sensor 91 is equal to or less than the predetermined distance, the 1 st airflow control mode is switched, so that the air blown out from the indoor unit can be directly blown to the person in the indoor space R at an appropriate timing.
The specific embodiments of the present invention have been described, but the present invention is not limited to the above-described embodiment 1 and 2 and modifications thereof, and can be variously modified and implemented within the scope of the present invention. For example, the content obtained by deleting or replacing a part of the content described in embodiment 1 or embodiment 2 may be one embodiment of the present invention. Alternatively, the modification of embodiment 1 and embodiment 2 described above may be combined to form one embodiment of the present invention.
Description of the reference numerals
1. Indoor machine
2. Outdoor unit
10. Indoor fan
11. Compressor with a compressor body having a rotor with a rotor shaft
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 casing
34. Blowing-out port
41 st horizontal baffle
41c, 51c upper airfoil surface
41d, 51d lower airfoil
41e, 41f, 51e curved surfaces
51 nd horizontal baffle
51f 1 st curved surface
51g 2 nd curved surface
61 vertical baffle
73 st horizontal baffle motor
74 nd horizontal baffle motor
83 1 st vertical baffle group motor
84 nd vertical baffle group motor
91. Human sensor
100. 200 control device
G1 1 st vertical baffle plate group
G2 2 nd vertical baffle group
L1, L2 communication piping
RC refrigerant circuit
Tilt angle 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) comprises:
a housing (30) which is attached to a wall surface (W) facing the air-conditioning target space (R) and has an air 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-conditioning target space (R);
a 1 st driving 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 driving unit (73), and the 2 nd driving unit (74),
the air conditioning indoor unit (1) is capable of operating in a 1 st airflow control mode in which, with respect to a distance between the 1 st horizontal blade (41) and the 2 nd horizontal blade (51), a downstream side of a 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 (W) side, a part of the blown air flows along a lower airfoil surface (41 d) of the 1 st horizontal blade (41), and another part of the blown air flows along an upper airfoil surface (51 c) of the 2 nd horizontal blade (51),
the lower airfoil surface (41 d) of the 1 st horizontal blade (41) includes a convex curved surface (41 f), while the upper airfoil surface (51 c) of the 2 nd horizontal blade (51) includes a convex curved surface (51 e),
the 2 nd horizontal blade (51) has a 1 st end (51 a) disposed on the upstream side of the flow of the blown air and a 2 nd end (51 b) disposed on the downstream side of the flow of the blown air,
the curved surface (51 e) of the upper airfoil surface (51 c) of the 2 nd horizontal blade (51) is located at a central portion between the 1 st end (51 a) of the 2 nd horizontal blade (51) and the 2 nd end (51 b) of the 2 nd horizontal blade (51).
2. An air conditioning indoor unit (1) according to claim 1, characterized in that,
the lower airfoil surface (51 d) of the 2 nd horizontal blade (51) includes a concave curved surface (51 f).
3. An air conditioning indoor unit (1) according to claim 1 or 2, characterized in that,
in the 1 st air flow control mode, the separation angle between the 1 st horizontal blade (41) and the 2 nd horizontal blade (51) is in the range of 53 DEG to 60 deg.
4. An air conditioning indoor unit (1) according to claim 1 or 2, characterized in that,
the air conditioning indoor unit (1) can perform an operation 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 vane (41) with respect to the horizontal plane is larger 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 vane (51) with respect to the horizontal plane is larger in the 1 st airflow control mode than in the 2 nd airflow control mode.
5. An air conditioning indoor unit (1) according to claim 1 or 2, characterized in that,
the air conditioning indoor unit (1) has a plurality of vertical blades (61), the plurality of vertical blades (61) adjust the wind direction of the blown air in the left-right direction,
In the 1 st airflow control mode, one side vertical blade (61) of the plurality of vertical blades (61) is inclined so that a downstream end of the flow of the blown air is located on the side of the upstream end of the flow of the blown air,
the other vertical blade (61) of the plurality of vertical blades (61) is inclined so that the downstream end of the flow of the blown air is located on the other side than the upstream end of the flow of the blown air.
6. An air conditioning indoor unit (1) according to claim 1 or 2, characterized in that,
the indoor unit (1) has a human sensor (91), the human sensor (91) detects the distance between the indoor unit and the human in the air-conditioning object space (R),
the air conditioning indoor unit (1) can perform operation in a 3 rd airflow control mode in which the blown air flows downward along the wall surface (W),
when the distance detected by the human sensor (91) is equal to or less than a predetermined distance in the 3 rd air flow control mode, the control device (200) switches from the 3 rd air flow control mode to the 1 st air flow control mode.
7. An air conditioner, characterized in that the air conditioner comprises:
an air conditioning indoor unit (1) according to any one of claims 1 to 6; 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 |
|---|---|---|---|
| JP2019168492A JP7082293B2 (en) | 2019-09-17 | 2019-09-17 | Air conditioning indoor unit and air conditioner |
| JP2019-168492 | 2019-09-17 | ||
| 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 CN114364922A (en) | 2022-04-15 |
| CN114364922B true CN114364922B (en) | 2023-08-01 |
Family
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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) |
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- 2020-09-07 CN CN202080063899.5A patent/CN114364922B/en active Active
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| 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 |
|---|---|
| JP7082293B2 (en) | 2022-06-08 |
| WO2021054182A1 (en) | 2021-03-25 |
| EP4015933B1 (en) | 2024-05-29 |
| EP4015933A1 (en) | 2022-06-22 |
| CN114364922A (en) | 2022-04-15 |
| EP4015933A4 (en) | 2022-10-05 |
| JP2021046957A (en) | 2021-03-25 |
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