JP4876583B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner.

2. Description of the Related Art Conventionally, some air conditioners generate a flow of air that is sucked from a suction port and blown from a blower port by driving a turbo fan (see Patent Document 1). The turbo fan sucks air from the rotation axis direction of the fan rotor and blows air in the centrifugal direction. Air blown out from the turbofan is blown out into the room through the blowout opening.
JP 2002-195642 A

  In the air conditioner using the turbo fan as described above, the air blown in the centrifugal direction of the turbo fan 91 (see arrow A6) collides with the side wall 92 of the storage space of the turbo fan 91 as shown in FIG. Therefore, the air flow may be disturbed. When such a disturbance occurs in the air flow, there is a risk that the blowing sound increases.

  The subject of this invention is providing the air conditioner which can reduce a blowing sound.

An air conditioner according to a first aspect of the present invention includes a turbo fan, a casing, and a first current plate. The turbo fan blows air in the centrifugal direction. The casing has a fan storage space, a first side wall, and a first outlet. The fan storage space is a space for storing a turbo fan. The first side wall is disposed in the centrifugal direction of the turbofan in the fan storage space. The first outlet is disposed in a direction orthogonal to the direction connecting the rotation center of the turbofan and the first side wall, and communicates with the fan housing space. And a 1st baffle plate guides the air blown toward the 1st side wall from the turbo fan to the direction which goes to a 1st blower outlet. The first outlet is located above the turbo fan. Furthermore, the first rectifying plate is disposed between the first portion and the first side wall. The first part is an upper end of the turbo fan, and is a part of the turbo fan in which the rotation circumferential direction vector is directed toward the first side wall.

  In this air conditioner, the air blown from the turbo fan toward the first side wall is guided in the direction toward the first outlet by the first rectifying plate. For this reason, it can suppress that disorder arises in the flow of air, and can reduce a blowing sound.

Moreover, in this air conditioner, a 1st baffle plate is arrange | positioned between a 1st part and a 1st side wall. Between the first portion and the first side wall is a position where a large amount of air flowing toward the first side wall flows, so that the blowing sound can be further reduced by arranging the first current plate at this position.

  An air conditioner according to a second invention includes a turbo fan, a casing, and a first current plate. The turbo fan blows air in the centrifugal direction. The casing has a fan storage space, a first side wall, and a first outlet. The fan storage space is a space for storing a turbo fan. The first side wall is disposed in the centrifugal direction of the turbofan in the fan storage space. The first outlet is disposed in a direction orthogonal to the direction connecting the rotation center of the turbofan and the first side wall, and communicates with the fan housing space. And a 1st baffle plate guides the air blown toward the 1st side wall from the turbo fan to the direction which goes to a 1st blower outlet. The first outlet is located on the lower side of the turbo fan. Furthermore, the first rectifying plate is disposed between the first portion and the first side wall. The first part is a lower end of the turbo fan, and is a part of the turbo fan in which the rotational circumferential vector is directed to the first side wall.

  In this air conditioner, the air blown from the turbo fan toward the first side wall is guided in the direction toward the first outlet by the first rectifying plate. For this reason, it can suppress that disorder arises in the flow of air, and can reduce a blowing sound.

  Moreover, in this air conditioner, a 1st baffle plate is arrange | positioned between a 1st part and a 1st side wall. Between the first portion and the first side wall is a position where a large amount of air flowing toward the first side wall flows, so that the blowing sound can be further reduced by arranging the first current plate at this position.

  An air conditioner according to a third aspect of the present invention is the air conditioner of the first or second aspect, wherein the first outlet is located on the upper side of the turbo fan and the first side wall is located on the left side of the turbo fan. When viewed from the direction of the rotation axis of the turbo fan, the turbo fan rotates counterclockwise, and the first rectifying plate is disposed obliquely to the left of the turbo fan.

  In this air conditioner, when viewed as described above, the first rectifying plate is disposed obliquely above and to the left of the turbofan. When the turbo fan rotates counterclockwise, the upper left portion of the turbo fan is a position where a lot of air flows toward the first side wall. For this reason, the blowing sound can be further reduced by arranging the first current plate at this position.

  An air conditioner according to a fourth aspect of the present invention is the air conditioner of the first or second aspect, wherein the first outlet is located on the upper side of the turbofan and the first side wall is located on the right side of the turbofan. When viewed from the direction of the rotation axis of the turbo fan, the turbo fan rotates clockwise, and the first rectifying plate is disposed diagonally upward to the right of the turbo fan.

  In this air conditioner, when viewed as described above, the first rectifying plate is disposed obliquely above and to the right of the turbofan. When the turbo fan rotates in the clockwise direction, an upper right portion of the turbo fan is a position where a lot of air flows toward the first side wall. For this reason, the blowing sound can be further reduced by arranging the first current plate at this position.

An air conditioner according to a fifth aspect of the present invention is the air conditioner according to any one of the first to fourth aspects of the present invention, wherein the upstream end portion of the first rectifying plate in the direction of blowing air from the turbofan is the other part. It is thicker and rounded.

In this air conditioner, the end of the first rectifying plate on the upstream side in the air blowing direction from the turbofan has the shape as described above, so that the air flow is less likely to be disturbed by the first rectifying plate. For this reason, it can suppress that a blowing sound increases with the 1st current plate.

  The air conditioner according to a sixth aspect of the present invention is the air conditioner of the first aspect, wherein the casing further has a second side wall disposed on the opposite side of the first side wall with respect to the turbofan. The air conditioner further includes a fan cover, a bell mouth, and a second rectifying plate. The fan cover is arranged to face the turbo fan in the rotation axis direction of the turbo fan and guides air to the turbo fan. The bell mouth is disposed on the upstream side of the fan cover so as to face the fan cover and guides air to the fan cover. The second baffle plate guides the air blown from the turbo fan and flowing along the fan cover in a direction toward the first blowout port.

  In this air conditioner, the air blown from the turbo fan and flowing along the fan cover is guided in the direction toward the first outlet by the second rectifying plate. For this reason, the disturbance of the air flow due to the air flowing along the fan cover can be suppressed.

  An air conditioner according to a seventh aspect of the invention is the air conditioner of the sixth aspect of the invention, wherein the second rectifying plate includes a first portion of the turbofan whose first circumferential direction vector is in the direction toward the first side wall, and the first portion. It arrange | positions between two side walls.

  In this air conditioner, the second rectifying plate is disposed between the first portion and the second side wall. Since a large amount of air blown out from the turbofan and bounced off at the second side wall passes through the portion between the first part and the second side wall, the second baffle plate is arranged at this position, so that The turbulence of the air flow due to the flowing air can be further suppressed.

  An air conditioner according to an eighth aspect of the present invention is the air conditioner according to the sixth aspect or the seventh aspect, wherein the casing further includes a second outlet arranged on the opposite side of the first outlet with respect to the turbofan. Have. The air conditioner further includes a third current plate that guides the air blown from the turbo fan toward the second side wall in a direction toward the second outlet.

  In this air conditioner, turbulence in the air flow due to the air blown from the turbofan toward the second side wall is suppressed by the third rectifying plate. Thereby, in this air conditioner, both the blowing sound from the first blowout port and the blowing sound from the second blowout port can be reduced.

  An air conditioner according to a ninth aspect of the present invention is the air conditioner according to the eighth aspect of the present invention, further comprising a fourth current plate that guides air blown from the turbofan and flowing along the fan cover in a direction toward the second outlet. Prepare.

  In this air conditioner, the air blown from the turbo fan and flowing along the fan cover is guided in the direction toward the second outlet by the fourth rectifying plate. For this reason, the disturbance of the air flow due to the air flowing along the fan cover can be suppressed.

  In the air conditioner according to the first aspect of the invention, the air blown from the turbo fan toward the first side wall is guided in the direction toward the first outlet by the first rectifying plate. For this reason, it can suppress that disorder arises in the flow of air, and can reduce a blowing sound.

  In the air conditioner according to the second aspect of the invention, the air blown from the turbofan toward the first side wall is guided in the direction toward the first blowout port by the first rectifying plate. For this reason, it can suppress that disorder arises in the flow of air, and can reduce a blowing sound.

  In the air conditioner according to the third aspect of the invention, the first rectifying plate is disposed obliquely above and to the left of the turbofan through which a large amount of air toward the first side wall flows, so that the blowing sound can be further reduced.

  In the air conditioner according to the fourth aspect of the present invention, the first rectifying plate is disposed obliquely above and to the right of the turbofan in which a large amount of air toward the first side wall flows, so that the blowing sound can be further reduced.

  In the air conditioner according to the fifth aspect of the invention, there is little possibility that the air flow is disturbed by the first rectifying plate. For this reason, it can suppress that a blowing sound increases with the 1st current plate.

  In the air conditioner according to the sixth aspect of the invention, the air blown from the turbo fan and flowing along the fan cover is guided by the second rectifying plate in the direction toward the first outlet. For this reason, the disturbance of the air flow due to the air flowing along the fan cover can be suppressed.

  In the air conditioner according to the seventh aspect of the present invention, the second rectifying plate is disposed in a portion between the first portion and the second side wall through which the air blown out from the turbo fan and bounced back by the second side wall passes a lot. The disturbance of the air flow due to the air flowing along the fan cover can be further suppressed.

  In the air conditioner according to the eighth aspect of the invention, the third rectifying plate suppresses the turbulence of the air flow due to the air blown out from the turbofan toward the second side wall. Thereby, in this air conditioner, both the blowing sound from the first blowout port and the blowing sound from the second blowout port can be reduced.

  In the air conditioner according to the ninth aspect of the invention, the air blown out from the turbo fan and flowing along the fan cover is guided in the direction toward the second outlet by the fourth rectifying plate. For this reason, the disturbance of the air flow due to the air flowing along the fan cover can be suppressed.

<Configuration>
An air conditioner 1 according to an embodiment of the present invention is shown in FIGS. FIG. 1 is a front view of the air conditioner 1, and FIG. 2 is a side view of the air conditioner 1. FIG. 3 is a side sectional view of the air conditioner 1. This air conditioner 1 is a floor-standing indoor unit, and includes a casing 2, a filter 3a, an indoor heat exchanger 4, a blower 5, a first rectifying plate 31, a third rectifying plate 32, and a second. A rectifying plate 33, a fourth rectifying plate 34, and a control unit 80 (see FIG. 6) are provided. In addition, in the following description, the term “up / down / left / right” means up / down / left / right in the front view of the air conditioner 1.

[Case 2]
<Overall configuration of casing 2>
The casing 2 is made of a synthetic resin hollow casing, and houses the filter 3a, the indoor heat exchanger 4, the bell mouth 13, and the blower 5 inside. The casing 2 is provided with a first air outlet 6, a second air outlet 7, a first air inlet 8, a second air inlet 9, a third air inlet 10, and a fourth air inlet 11.

  The first air outlet 6 and the second air outlet 7 are provided on the front surface of the casing 2. The 1st blower outlet 6 is a horizontally long opening provided along the upper end of the front surface of the casing 2, and the air which blows off indoors passes. The 2nd blowing outlet 7 is a horizontally long opening provided along the lower end of the front surface of the casing 2, and the air which blows off indoors passes. In addition, the 1st flap 61 is rotatably provided in the 1st blower outlet 6, and the 1st flap 61 which guides the air blown out from the 1st blower outlet 6 is provided, and the 1st flap 61 is the flap motor 63 (refer FIG. 6). The first air outlet 6 is opened and closed by rotating by. Moreover, the 2nd flap 62 which guides the air which blows off from the 2nd blowing outlet 7 is rotatably provided in the 2nd blowing outlet 7. As shown in FIG. A shutter member 64 that opens and closes the second outlet 7 is provided behind the second outlet 7 so as to be rotatable. The shutter member 64 opens and closes the second outlet 7 by rotating by a shutter motor 65 (see FIG. 6). The first outlet 6 and the second outlet 7 have substantially the same length in the left-right direction, but the first outlet 6 and the second outlet 7 have different sizes, and the first outlet 6 is larger than the second outlet 7. In FIG. 1, the second outlet 7 seems to be longer in the left-right direction than the first outlet 6, but the length of the portion communicating with the internal space inside the casing 2. As for the length, the length in the left-right direction of the first outlet 6 and the second outlet 7 is substantially the same.

  The first suction port 8 and the second suction port 9 are respectively provided on the left and right side surfaces of the casing 2 and are arranged at a distance in the left-right direction. The first suction port 8 is a vertically long opening provided along the front end of the right side surface of the casing 2, and the air sucked into the casing 2 from the room passes therethrough. The second suction port 9 is a vertically long opening provided along the front end of the left side surface of the casing 2, and the air sucked into the casing 2 from the room passes therethrough.

  The third suction port 10 and the fourth suction port 11 are provided on the front surface of the casing 2. The third suction port 10 is a horizontally long opening provided below the first blow-out port 6, and air sucked into the casing 2 from the room passes therethrough. The fourth suction port 11 is a horizontally long opening provided above the second blowout port 7, and air sucked into the casing 2 from the room passes therethrough. Further, a flat flat panel portion 20 having no opening is provided between the third suction port 10 and the fourth suction port 11 in the front surface of the casing 2.

  The casing 2 has a casing body 21 and a front panel 22 that is detachably attached to the front surface of the casing body 21, and has a second outlet 7, a first inlet 8, and a second inlet 9. The third suction port 10 and the fourth suction port 11 are provided in the front panel 22. The first outlet 6 is provided in the casing body 21.

<Front panel>
The front panel 22 has an outer shape smaller than the front surface of the casing body 21 and is disposed below the first outlet 6 in front view. The third suction port 10 is disposed in the vicinity of the upper end of the front panel 22, and the second outlet 7 is disposed in the vicinity of the lower end of the front panel 22. The fourth suction port 11 is provided above the second outlet 7 as described above. In addition, the front surface of the front panel 22 is arranged at a slight distance forward from the front surface of the casing body 21, and the side surface of the front panel 22 that connects the front side end of the front panel 22 and the front surface of the casing body 21. Are provided with a first suction port 8 and a second suction port 9. As shown in FIG. 4, the right side surface of the front panel 22 is located slightly inside the right side surface of the casing body 21 in the front view, and the indoor heat exchanger 4 housed inside the casing body 21. It is located outside the right end of. For this reason, the 1st suction inlet 8 is located outside the right end part of the indoor heat exchanger 4, ie, the right side. Further, the left side surface of the front panel 22 is located slightly inward of the left side surface of the casing body 21 when viewed from the front, and is approximately at the left end of the indoor heat exchanger 4 housed inside the casing body 21. Opposite. For this reason, the second suction port 9 is provided at a position generally facing the left end of the indoor heat exchanger 4. Also, the upper surface of the front panel 22 that connects the front upper end of the front panel 22 and the front surface of the casing body 21 and the lower surface of the front panel 22 that connects the lower front end of the front panel 22 and the front surface of the casing body 21 are closed. Yes. Note that the third suction port 10 may be provided not on the front surface of the front panel 22 but on the upper surface of the front panel 22.

  As described above, the first suction port 8 to the fourth suction port 11 are arranged in the casing 2 in the four directions of the top, bottom, left, and right around the flat panel portion 20 of the front panel 22. Air is sucked in from the left and right directions.

<Case body>
The casing body 21 has a large opening on the front surface, and the opening is closed by the front panel 22. As shown in FIG. 3, inside the casing body 21, the filter 3 a, the indoor heat exchanger 4, the bell mouth 13, and the blower device 5 face the opening on the front surface of the casing body 21 and face from the front to the rear. Are arranged in order.

<Internal space of casing 2>
The internal space of the casing 2 is divided into three spaces: a suction space SP1, a heat exchanger storage space SP2, and a fan storage space SP3.

  The suction space SP1 is a space formed between the front panel 22 and the filter 3a, and air that is sucked from each suction port 8-11 and passes through the filter 3a passes therethrough.

  The heat exchanger storage space SP2 is formed between the filter 3a and the bell mouth 13, and is a space for storing the indoor heat exchanger 4. The heat exchanger storage space SP2 is located behind the suction space SP1. Note that the suction space SP1 and the heat exchanger storage space SP2 are located between the first outlet 6 and the second outlet 7 in a front view. The air that has passed through the filter 3a passes through the heat exchanger storage space SP2, and is heat-exchanged by the indoor heat exchanger 4.

  The fan storage space SP3 is disposed so as to cover the rear, upper, and lower sides of the heat exchanger storage space SP2, and the blower 5 is stored behind the heat exchanger storage space SP2. The fan storage space SP3 communicates with the heat exchanger storage space SP2 via the air inlet 14 of the bell mouth 13. The fan storage space SP3 extends from the rear of the heat exchanger storage space SP2 toward the upper surface and the bottom surface of the casing 2 and communicates with the first outlet 6 and the second outlet 7. For this reason, the air that has entered the fan housing space SP3 from the air inlet 14 of the bell mouth 13 branches upward and downward and is blown out from the first outlet 6 and the second outlet 7, respectively. Further, as shown in FIG. 5, the length of the fan housing space SP3 in the left-right direction is substantially the same as the length of the indoor heat exchanger 4, the first outlet 6 and the second outlet 7 in the left-right direction. The side of the fan storage space SP3 is closed by the right side wall 17 and the left side wall 18, and the right side of the right side wall 17 is a space for storing electrical components and the like.

[Filter 3a]
The filter 3 a is disposed behind the flat panel portion 20 so as to face the flat panel portion 20, and is attached so as to cover the opening on the front surface of the casing body 21. The filter 3a is located downstream of each suction port 8-11 in the air flow. The filter 3a permeate | transmits the air suck | inhaled from each suction inlet 8-11 to back, and cleans the air which permeate | transmits.

[Indoor heat exchanger 4]
The indoor heat exchanger 4 constitutes a refrigerant circuit together with an outdoor heat exchanger (not shown), and exchanges heat with the passing air. The indoor heat exchanger 4 is disposed behind the filter 3a so as to face the filter 3a, and is located downstream of the filter 3a in the air flow. The indoor heat exchanger 4 has a thin plate-like outer shape, and has the same size as the filter 3a in front view. The indoor heat exchanger 4 is provided in parallel to the flat panel unit 20.

[Blower 5]
The blower device 5 is disposed behind the indoor heat exchanger 4 so as to face the indoor heat exchanger 4, and is located downstream of the indoor heat exchanger 4 in the air flow. The air blower 5 is located behind the first air outlet 6 and the second air outlet 7, but is disposed between the first air outlet 6 and the second air outlet 7 when viewed from the front. Moreover, the air blower 5 is arrange | positioned between the 1st suction inlet 8 and the 2nd suction inlet 9 in front view. The blower 5 is a turbo blower that is a type of centrifugal fan that blows wind in the centrifugal direction, and generates a flow of air that is sucked from the suction ports 8-11 and blown from the blow ports 6 and 7. The blower 5 includes a fan rotor 51, a fan motor 52, and a fan cover 53.

  The fan rotor 51 is arranged such that the rotation axis AX1 is horizontal in the front-rear direction, and has a plurality of blades arranged so as to be separated from the rotation axis AX1 while drawing a spiral. As shown in FIG. 5, the right side wall 17 is disposed on the right side of the fan rotor 51 in the front view, and is positioned in the centrifugal direction of the fan rotor 51. Further, the left side wall 18 is disposed on the opposite side of the right side wall 17 with respect to the fan rotor 51, and is positioned in the centrifugal direction of the fan rotor 51. The first air outlet 6 is located above the fan rotor 51, and the second air outlet 7 is located on the opposite side of the fan rotor 51 from the first air outlet 6, that is, below the fan rotor 51. is doing. Then, the air blown upward from the fan rotor 51 is blown out from the first blowout port 6 through the first air passage PA1 connected to the first blowout port 6, as shown in FIG. The air blown downward from the fan rotor 51 is blown out from the second blowout port 7 through the second air passage PA2 connected to the second blowout port 7.

  As shown in FIG. 4, the rotation center O1 of the fan rotor 51 is orthogonal to the direction connecting the first outlet 6 and the second outlet 7 with respect to the center O2 of the fan storage space SP3 in the front view. Are shifted in the horizontal direction, that is, in the left-right direction. Here, since the fan rotor 51 rotates counterclockwise when viewed from the front, the rotation center O1 of the fan rotor 51 is shifted to the left with respect to the center O2 of the fan storage space SP3. For this reason, as shown in FIG. 5, the right end and the right side wall 17 in which the rotational circumferential vector of the fan rotor 51 is the direction from the second outlet 7 toward the first outlet 6 (see arrow A <b> 1). The distance d1 of the fan rotor 51 is greater than the distance d2 between the left end and the left side wall 18 where the rotation circumferential vector is in the direction from the first outlet 6 toward the second outlet 7 (see arrow A2). It is getting bigger. The deviation of the rotation center O1 of the fan rotor 51 is, for example, 10 mm to 20 mm.

  The fan motor 52 is a drive source that rotationally drives the fan rotor 51, and is disposed behind the fan rotor 51.

  The fan cover 53 is disposed to face the fan rotor 51 in the rotation axis direction of the fan rotor 51, and is disposed in front of the fan rotor 51. The fan cover 53 guides the air blown from the air inlet 14 to the fan rotor 51. An opening through which air taken into the fan cover 53 passes is provided on the front surface of the fan cover 53. The fan cover 53 spreads in the vertical direction toward the rear in a side sectional view, and the air that has passed through the opening on the front surface of the fan cover 53 is blown in the centrifugal direction by the fan rotor 51 and branches up and down. The air is blown into the room from the air outlet 6 and the second air outlet 7.

[Bellmouth 13]
The bell mouth 13 is provided between the indoor heat exchanger 4 and the blower 5 and is a member that partitions the heat exchanger storage space SP2 and the fan storage space SP3. The bell mouth 13 is disposed on the upstream side of the fan cover 53 so as to face the fan cover 53, and guides air that has passed through the indoor heat exchanger 4 to the fan cover 53. The bell mouth 13 has a flat part 15 and a circular pipe part 16.

  The flat portion 15 has an outer shape of the same size as the indoor heat exchanger 4 when viewed from the front, and is provided in parallel with the indoor heat exchanger 4 so as to face the rear surface of the indoor heat exchanger 4. . The flat portion 15 is provided with the air inlet 14 described above, and the front end of the circular pipe portion 16 is connected to the periphery of the air inlet 14 of the flat portion 15.

  The circular pipe portion 16 is curved so that the diameter of the front end side is increased, and is gently connected to the peripheral edge of the air inlet 14. Further, the rear end of the circular pipe portion 16 has an outer diameter smaller than the opening on the front surface of the fan cover 53, and enters the inside of the fan cover 53 through the opening on the front surface of the fan cover 53. A gap is provided between the outer peripheral surface of the rear end of the circular pipe portion 16 and the inner peripheral surface of the opening on the front surface of the fan cover 53.

  As shown in FIG. 4, the air inlet 14 has a smaller outer shape than the indoor heat exchanger 4 in the front view, and the circular pipe portion 16 also has a smaller outer shape than the indoor heat exchanger 4 in the front view. have. The air inlet 14 has a circular shape that is smaller than the outer diameter of the fan rotor 51 of the blower 5 when viewed from the front. The air inlet 14 is disposed concentrically with the rotation center O <b> 1 of the fan rotor 51.

  As described above, since the rotation center O1 of the fan rotor 51 is shifted to the left side from the center in the left-right direction of the fan housing space SP3, the center of the air inlet 14 is also shifted to the left side. The first suction port 8 is located on the right side of the right side wall 17 of the fan storage space SP3 in the front view, and the second suction port 9 faces the left side wall 18 of the fan storage space SP3. For this reason, the suction distance from the first suction port 8 to the air introduction port 14 is longer than the suction distance from the second suction port 9 to the air introduction port 14.

[First rectifying plate 31 and third rectifying plate 32]
The first rectifying plate 31 is a plate-like member that guides the air blown from the fan rotor 51 toward the right side wall 17 in a direction toward the first blowout port 6. As shown in FIG. 5, the first rectifying plate 31 is disposed between the upper end portion 55 and the left side wall 18 in which the circumferential vector of rotation of the fan rotor 51 is directed to the left side wall 18 (see arrow A <b> 3). In the front view, the fan rotor 51 is disposed obliquely above and to the left. The first rectifying plate 31 is located above a position rotated from the upper end portion 55 of the fan rotor 51 by about 45 ° in the rotation direction of the fan rotor 51. Moreover, the 1st baffle plate 31 is provided so that it may protrude in 1st air passage PA1, as shown in FIG. The first air passage PA <b> 1 extends diagonally forward and upward from the air outlet of the fan rotor 51 and is connected to the first outlet 6.

  In addition, the downstream end of the first rectifying plate 31 is thicker and rounder than the other parts, thereby preventing air from being disturbed. Further, the first rectifying plate 31 has a gently curved shape so as to guide air toward the first outlet 7.

  The third rectifying plate 32 is a plate-like member that guides the air blown from the fan rotor 51 toward the right side wall 17 in a direction toward the second blowing port 7. The third rectifying plate 32 is disposed symmetrically with the first rectifying plate 31 with respect to the rotation center O1 of the turbofan in the front view. The third rectifying plate 32 is disposed between the lower end portion 56 and the right side wall 17 in which the rotation circumferential vector of the fan rotor 51 is directed to the right side wall 17 (see arrow A4). The fan rotor 51 is disposed obliquely below and to the right. The third rectifying plate 32 is located below the position rotated from the lower end portion 56 of the fan rotor 51 by about 45 ° in the rotation direction of the fan rotor 51. Moreover, the 1st baffle plate 31 is provided so that it may protrude in 2nd air passage PA2, as shown in FIG. The second air passage PA2 extends obliquely forward and downward from the air outlet of the fan rotor 51 and is connected to the second outlet 7. Further, the third rectifying plate 32 has the same shape as the first rectifying plate 31.

[Second rectifying plate 33 and fourth rectifying plate 34]
The second rectifying plate 33 is a plate-like member that guides the air blown from the fan rotor 51 and flowing along the fan cover 53 in a direction toward the first blowout port 6. As shown in FIG. 5, the second rectifying plate 33 is disposed between the upper end portion 55 of the fan rotor 51 and the right side wall 17 in the front view, and obliquely above and to the right of the circular tube portion 16 of the bell mouth 13. Is arranged. The second rectifying plate 33 is located in a range from the direction from the rotation center O1 of the fan rotor 51 toward the first outlet 6 to about 45 ° in the direction opposite to the rotation direction of the fan rotor 51. The second rectifying plate 33 is smaller than the first rectifying plate 31, and the downstream end is thicker and rounder than the other portions, like the first rectifying plate 31. The second current plate 33 has a curved shape similar to the first current plate 31.

  The fourth rectifying plate 34 guides the air blown from the fan rotor 51 and flowing along the fan cover 53 in a direction toward the second blowout port 7. The fourth rectifying plate 34 is disposed symmetrically with the second rectifying plate 33 with respect to the rotation center O1 of the turbofan when viewed from the front. The fourth rectifying plate 34 is disposed between the lower end portion 56 of the fan rotor 51 and the left side wall 18 when viewed from the front, and is disposed diagonally to the left of the circular tube portion 16 of the bell mouth 13. The fourth rectifying plate 34 is located in a range from the direction from the rotation center O1 of the fan rotor 51 toward the second outlet 7 to about 45 ° in the direction opposite to the rotation direction of the fan rotor 51. Note that the fourth rectifying plate 34 is smaller than the third rectifying plate 32, and the downstream end is thicker and rounder than the other portions, like the third rectifying plate 32. Further, the fourth rectifying plate 34 has a curved shape like the third rectifying plate 32.

  Further, as shown in FIG. 3, the second rectifying plate 33 and the fourth rectifying plate 34 are provided so as to protrude rearward from the rear surface of the flat portion 15 of the bell mouth 13 in the fan housing space SP3. It is located between the rear surface of the flat portion 15 of the mouse 13 and the front surface of the fan cover 53. The second rectifying plate 33 and the fourth rectifying plate 34 are located on the outer peripheral side of the circular tube portion 16 of the bell mouth 13 and face the entrance of the gap between the bell mouth 13 and the fan cover 53. The second rectifying plate 33 is located above the circular pipe portion 16 of the bell mouth 13, and the fourth rectifying plate 34 is located below the circular pipe portion 16 of the bell mouth 13.

[Control unit 80]
As shown in FIG. 6, the control unit 80 controls the air conditioner 1 based on information from various sensors 81, a command signal from the remote controller 82, and the like. The control unit 80 can perform an air conditioning operation such as heating and cooling by controlling various outdoor unit components 83, a fan motor 52, a flap motor 63, a shutter motor 65, and the like arranged in an outdoor unit (not shown). Further, the control unit 80 controls the shutter member 64 to be closed and the first flap 61 to be opened, so that the air from the first outlet 6 is not blown out from the second outlet 7. The first outlet 6 priority operation that performs only the blowing can be performed. For example, by performing the first outlet 6 priority operation during the cooling operation, it is possible to prevent the feet from getting cold and to cool the room appropriately.

<Features>
(1)
In the air conditioner 1, the air blown from the fan rotor 51 toward the left side wall 18 is changed in direction by the first rectifying plate 31 and heads toward the first outlet 6. Further, the air blown out from the fan rotor 51 toward the right side wall 17 is changed in direction by the third rectifying plate 32 and directed toward the second outlet 7. For this reason, the air which collides with the right side wall 17 and the left side wall 18 is reduced, and generation | occurrence | production of the disturbance of air is suppressed. In addition, the collision between the air flow that collides with the right side wall 17 and the left side wall 18 and moves upward and the air flow blown from the fan rotor 51 toward the right side wall 17 and the left side wall 18 is reduced. Disturbance can be suppressed. Thereby, in this air conditioner 1, a blowing sound can be reduced and noise reduction can be implement | achieved.

(2)
In general, if a gap is provided between the bell mouth 13 and the fan cover 53, a part of the air blown out from the fan rotor 51 may flow backward from the gap as shown in FIG. (See A5). In particular, when the air blown from the fan rotor 51 (see arrow A7) is rebounded by colliding with the first side wall 17 or the second side wall 18 and returns to the vicinity of the fan rotor 51, the bell mouth 13 and the fan The amount of air flowing backward from the gap with the cover 53 increases. As a result, the air flow is disturbed, and there is a possibility that the blowing sound increases. Further, in this case, the amount of normal intake air into the fan cover 53 is reduced, so that the amount of air blown out from the fan rotor 51 is reduced, and the blowout air speed may be uneven.

  However, in the air conditioner 1, the air bounced off the right side wall 17 and the left side wall 18 by the first rectifying plate 31 and the third rectifying plate 32 is reduced. Further, the air flowing along the fan cover 53 is guided toward the first outlet 6 and the second outlet 7 by the second rectifying plate 33 and the fourth rectifying plate 34. For this reason, the amount of air flowing back from the gap between the bell mouth 13 and the fan cover 53 can be reduced. Thereby, in this air conditioner 1, a blowing sound can be reduced. Further, it is possible to suppress a decrease in the amount of regular intake air into the fan cover 53, and it is possible to stabilize the blowing speed by suppressing the decrease in the blowing air.

<Other embodiments>
(A)
In the above embodiment, the fan rotor 51 rotates counterclockwise when viewed from the front, but may rotate clockwise. In this case, the first rectifying plate 31, the third rectifying plate 32, the second rectifying plate 33, and the fourth rectifying plate 34 are arranged symmetrically with respect to the above. That is, the first rectifying plate 31 is disposed obliquely to the upper right of the fan rotor 51, the third rectifying plate 32 is disposed obliquely to the lower left of the fan rotor 51, and the second rectifying plate 33 is disposed on the circular pipe portion 16. The fourth straightening plate 34 is disposed diagonally to the left of the circular pipe portion 16.

(B)
In the above embodiment, the present invention is applied to the floor-standing type air conditioner 1, but may be applied to other types of air conditioners such as a wall-mounted type and a ceiling arrangement type.

(C)
In the above embodiment, side guides 58 and 59 may be provided as shown in FIG. The side guides 58 and 59 are provided on the side walls 17 and 18, respectively, and are members that guide the air blown from the fan rotor 51 toward the side walls 17 and 18 toward the outlets 6 and 7.

  Even when the side guides 58 and 59 are provided, the first rectifying plate 31 and the third rectifying plate 32 can suppress the disturbance of the air flow. That is, the flow of air guided toward the outlets 6 and 7 by the side guides 58 and 59 (see arrows A8 and A9) and the flow of air blown from the fan rotor 51 toward the side walls 17 and 18 (arrows A3 and A3). The first rectifying plate 31 and the third rectifying plate 32 suppress the collision with A4), and the occurrence of turbulence due to the collision of the air flows is reduced.

  The first rectifying plate 31 and the third rectifying plate 32 suppress the disturbance of the air flow due to the collision with the side walls 17 and 18, so that the side guides 58 and 59 may be omitted as in the above embodiment. It is possible to reduce the blowing sound.

  The present invention has an effect of reducing blowing sound and is useful as an air conditioner.

The front view of an air conditioner. The side view of an air conditioner. Side surface sectional drawing of an air conditioner. The figure which shows the positional relationship of a fan rotor and another structure. The schematic diagram which shows arrangement | positioning of a 1st baffle plate, a 3rd baffle plate, a 2nd baffle plate, and a 4th baffle plate. The control block diagram of an air conditioner. The schematic diagram which shows the structure of the air conditioner which concerns on other embodiment. The figure explaining the mechanism of the conventional blowing sound increase. The figure explaining the mechanism of increase of the conventional backflow air.

DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Casing 6 1st outlet 7 2nd outlet 13 Bell mouth 17 Right side wall (2nd side wall)
18 Left side wall (first side wall)
31 First rectifying plate 32 Third rectifying plate 33 Second rectifying plate 34 Fourth rectifying plate 51 Fan rotor (turbo fan)
53 Fan cover 55 1st part (upper end part)
SP3 fan storage space

Claims (9)

A turbofan (51) for blowing air in the centrifugal direction;
A fan housing space (SP3) for housing the turbofan (51), a first side wall (18) disposed in the centrifugal direction of the turbofan (51) in the fan housing space (SP3), and the turbofan ( 51) a casing (2) having a first outlet (6) arranged in a direction orthogonal to the direction connecting the rotation center of 51) and the first side wall (18) and communicating with the fan housing space (SP3);
A first baffle plate (31) for guiding the air blown from the turbo fan (51) toward the first side wall (18) in a direction toward the first outlet (6) ;
Equipped with a,
The first outlet (6) is located above the turbofan (51),
The first rectifying plate (31) is an upper end of the turbo fan (51), and a first portion of the turbo fan (51) in which a rotational circumferential vector is directed to the first side wall (18). (55) and the first side wall (18),
Air conditioner (1).   A turbofan that blows out air in the centrifugal direction;
  A direction perpendicular to a direction in which a fan storage space for storing the turbo fan, a first side wall disposed in the centrifugal direction of the turbo fan in the fan storage space, and a rotation center of the turbo fan and the first side wall is connected. A casing having a first outlet that is disposed on the fan storage space and communicates with the fan storage space;
  A first rectifying plate that guides air blown from the turbofan toward the first side wall in a direction toward the first outlet;
With
  The first outlet is located below the turbofan;
  The first rectifying plate is disposed between the first side wall and a first portion that is a lower end of the turbo fan and has a rotational circumferential vector in the direction toward the first side wall of the turbo fan. The
Air conditioner (1). The turbo fan (51) is rotated such that the first outlet (6) is located above the turbo fan (51) and the first side wall (18) is located on the left side of the turbo fan (51). When viewed from the axial direction,
The turbofan (51) rotates counterclockwise,
The first current plate (31) is disposed obliquely above and to the left of the turbo fan (51).
The air conditioner (1) according to claim 1 or 2. The turbo fan (51) is rotated so that the first outlet (6) is located above the turbo fan (51) and the first side wall (18) is located on the right side of the turbo fan (51). When viewed from the axial direction,
The turbofan (51) rotates clockwise,
The first rectifying plate (31) is disposed obliquely above and to the right of the turbo fan (51).
The air conditioner (1) according to claim 1 or 2. In the first rectifying plate (31) , the end on the upstream side in the air blowing direction from the turbofan (51) is thicker and rounder than the other parts,
The air conditioner (1) according to any one of claims 1 to 4. The casing (2) further has a second side wall (17) disposed on the opposite side of the first side wall (18) with respect to the turbofan (51),
A fan cover (53) disposed opposite to the turbo fan (51) in the rotational axis direction of the turbo fan (51) and guiding air to the turbo fan (51);
A bell mouth (13) disposed on the upstream side of the fan cover (53) so as to face the fan cover (53) and guides air to the fan cover (53);
A second baffle plate (33) for guiding the air blown out from the turbo fan (51) and flowing along the fan cover (53) in a direction toward the first outlet (6);
The air conditioner (1) according to claim 1, further comprising: The second rectifying plate (33) includes a first portion (55) and a second side wall (17) in which a rotational circumferential vector of the turbo fan (51) is directed to the first side wall (18). Placed between and
The air conditioner (1) according to claim 6. The casing (2) further includes a second outlet (7) disposed on the opposite side of the first outlet (6) with respect to the turbo fan (51),
A third baffle plate (32) for guiding the air blown from the turbo fan (51) toward the second side wall (17) in a direction toward the second blow-out port (7);
The air conditioner (1) according to claim 6 or 7. A fourth current plate (34) for guiding the air blown from the turbo fan (51) and flowing along the fan cover (53) in a direction toward the second outlet (7);
The air conditioner (1) according to claim 8.

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