JP2006284092A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of sufficiently responding to demand for reducing size in the direction of depth without reducing performance as the air conditioner. <P>SOLUTION: A centrifugal blower 18 is arranged in a casing 11 in such a way that its rotary axial line P is along the direction of depth of the air conditioner 10, and a pair of heat exchangers 25 are arranged on both left and right sides of the centrifugal blower 18 in such a manner that they are partially overlapped on the centrifugal blower 18 in the left and right directions crossing the rotary axial line P orthogonally. For this reason, size in the direction of depth can be reduced. Blow-out ports 15R, 15L on the right and left sides are formed by constituting left and right side wall plates 30L, 30R in the casing 11 so as to open and close them and the side wall plates 30R, 30L are opened during air conditioning operation. Consequently, pressure loss of blow-out air from the right and left blow-out ports 15R, 15L is reduced, and blow-out air is blown out in the oblique direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an air conditioner including a heat exchanger and a blower in a casing.

  Conventionally, as this type of air conditioner, for example, an indoor unit of an air conditioner as described in Patent Document 1 (hereinafter referred to as “first conventional air conditioner”) is known. In the first conventional air conditioner, a heat exchanger is disposed in the box-shaped casing so as to face the suction port on the front surface of the casing, and a centrifugal blower is disposed on the back side of the heat exchanger. The air sucked into the casing through the suction port as the centrifugal blower is driven is adjusted in temperature through the heat exchanger, and then provided on the upper surface and the left and right surfaces of the casing. The air is blown out of the casing from the air outlet.

In addition to the first conventional air conditioner that uses a centrifugal blower as the blower, as described in, for example, Patent Document 2, an indoor unit for air conditioning that uses a crossflow blower as a blower (hereinafter referred to as “second conventional air conditioner”). Also known as “air conditioner”. In this second conventional air conditioner, a cross flow blower is arranged at the upper part in a box-shaped casing, and a heat exchanger is arranged at a position in the casing below the blower. And after the air sucked into the casing from the intake grill provided at the front upper portion of the casing in accordance with the rotational drive of the cross flow blower passes through the heat exchanger, the temperature of the casing is adjusted. The air is blown out of the casing from a blow grill provided at the lower part of the front surface.
Japanese Patent Laid-Open No. 10-122589 (Claim 1, paragraph number [0026], FIG. 2) JP-A-9-217942 (Claim 1, FIG. 1 and FIG. 2)

  By the way, recent air conditioners are required to be compact in the depth direction, that is, to be thin and compact from the viewpoint of reducing the installation space. In particular, when the air conditioner is configured as a wall-mounted indoor unit installed on an indoor wall surface or the like, there is a high demand for such a thin and compact design in order to improve indoor interior characteristics.

  In this regard, in the case of the first conventional air conditioner, since the heat exchanger and the centrifugal blower are arranged in the depth direction in the casing, they are sufficiently responding to the demand for thin and compact design. It was hard to say. On the other hand, in the case of the second conventional air conditioner, the heat exchanger and the cross-flow blower are arranged in the casing so as to overlap each other in the vertical direction. To meet the needs. However, in order to reduce the thickness and size of the second conventional air conditioner, it is conceivable to reduce the fan diameter of the crossflow blower. However, in such a case, the air volume decreases and the performance as an air conditioner is reduced. Therefore, it is not easy to reduce the thickness and size while maintaining the performance.

  An object of the present invention is an air conditioner in which a heat exchanger and an air blower are arranged in a casing, and the depth direction is made compact (thin and compact) without reducing the performance as an air conditioner. An object of the present invention is to provide an air conditioner that can sufficiently meet the demand.

According to a first aspect of the present invention, a centrifugal blower is disposed in a casing provided with an air inlet and an outlet, respectively, such that the rotational axis of the centrifugal blower is along the depth direction of the casing, and a heat exchanger. Is an air conditioner arranged to at least partially overlap with the centrifugal blower in a direction orthogonal to the rotational axis of the centrifugal blower,
An air conditioner characterized in that the side wall portion of the casing is configured to be openable and closable to form the air outlet, the side wall portion is opened during air conditioning operation, and the side wall portion is closed during air conditioning operation stop. It is.

  In the present invention, the centrifugal blower and the heat exchanger are not arranged in the casing in the depth direction of the casing, but are arranged in the direction perpendicular to the depth direction of the casing. It is possible to suitably meet the demand for compactness, that is, thinning. In addition, the side wall portion of the casing is configured to be openable and closable, and the air outlet is formed on the side surface of the casing, and the air blown from the centrifugal blower blows out from the side surface of the casing, so compared with the case where the air outlet is formed on the front surface near the side wall Thus, the pressure loss of the blown air is reduced. That is, the blown air from the centrifugal blower is blown out in a substantially vertical direction toward the side wall, but when the blowout port is formed on the front surface in the vicinity of the side wall, the direction of the blown air is bent approximately 90 degrees to blow out the blowout port. As a result, the pressure loss is relatively increased. On the other hand, in the present invention, since the side wall portion is opened and used as the blowout port, the angle for bending the traveling direction of the blown air becomes smaller than 90 degrees, and the pressure loss can be reduced.

  Further, since the blown air can be blown in an oblique direction inclined outward with respect to the front direction of the air conditioner, when used as an indoor unit, it becomes possible to supply conditioned air to the entire room, The temperature distribution can be made uniform. As a result, the comfort in the room can be improved.

The invention according to claim 2 is characterized in that the side wall portion opens in a range of 5 degrees to 75 degrees with respect to the rotation axis of the centrifugal blower.
In this invention, the blowing air from the side blower outlet can be blown off at an appropriate angle with respect to the front direction of the air conditioner. Therefore, when used as an indoor unit, the conditioned air can be supplied to a desired place in the room, and the comfort in the room can be improved.

The invention according to claim 3 is characterized in that the side wall portion is opened 5 degrees to 10 degrees.
In this invention, the blowing air from the blower outlet of a side surface can be blown off in the substantially front direction of an air conditioner. That is, when the blowout port is formed in the front surface in the vicinity of the side wall, the blowout direction of the blown air is bent by approximately 90 degrees, but strictly speaking, an angle slightly larger than 90 degrees (about 95 degrees to 100 degrees). It is bent only and blows out in a direction inclined inward with respect to the front direction. On the other hand, in this invention, it becomes possible to blow off the air blown from the side air outlet substantially in the front direction by opening the side wall portion by an angle inclined inward with respect to the front direction.

The invention according to claim 4 is characterized in that the side wall portion is opened approximately 60 degrees.
In this invention, the blowing air from the blower outlet of a side surface can be efficiently blown off in the diagonal direction. Thus, when used as an indoor unit, it becomes possible to efficiently supply conditioned air to the entire room.

The invention according to claim 5 is characterized in that a flap is formed inside the side wall portion.
In this invention, the blowing direction of the blowing air from the blower outlet of a side surface is controlled by a side wall part and a flap. Therefore, when used as an indoor unit, the blowing direction can be set in a desired direction, so that conditioned air can be supplied to a desired place in the room, and the comfort in the room can be improved.

  According to a sixth aspect of the present invention, a plurality of the centrifugal fans are arranged in the casing so as to extend along a direction orthogonal to the rotation axis, and the front side blow is provided between the adjacent centrifugal fans in front of the casing. An outlet is formed, and the blown air from a pair of centrifugal blowers arranged with the front side air outlet interposed therebetween is merged and guided to the front side air outlet.

  In the present invention, air blows out from the front side air outlet formed between the two adjacent centrifugal blowers and on the front surface of the casing toward the front direction of the air conditioner. That is, in order to blow out the blown air from the two centrifugal blowers individually from the front-side blower outlet, it is necessary to form a guide surface for bending the blown-out direction of the blown air by approximately 90 degrees. In this configuration, since the guide surface functions in the same manner as the side surface of the casing, as described above, the blown air is strictly bent by an angle slightly larger than 90 degrees (about 95 degrees to 100 degrees), and the front direction Will blow out in a direction inclined inward. On the other hand, in this invention, since each blowing air from two centrifugal blowers is made to merge and it guides to a blower outlet, it becomes possible to blow off the blown air from a front blower outlet to a substantially front direction. Therefore, when used as an indoor unit, air-conditioned air can be supplied to the entire room, and indoor comfort can be improved.

  According to the first aspect of the present invention, the centrifugal blower and the heat exchanger are arranged in the casing so as to overlap each other in the direction orthogonal to the depth direction of the casing. It is also possible to respond appropriately to the request for conversion. In addition, the side wall portion of the casing is configured to be openable and closable, and the air outlet is formed on the side surface of the casing, and the air blown from the centrifugal blower blows out from the side surface of the casing, so compared with the case where the air outlet is formed on the front surface near the side wall. Thus, the pressure loss of the blown air is reduced. Further, since the blown air can be blown in an oblique direction inclined outward with respect to the front direction of the air conditioner, when used as an indoor unit, it becomes possible to supply conditioned air to the entire room. The temperature distribution can be made uniform. As a result, the comfort in the room can be improved.

  Moreover, according to the invention which concerns on Claims 2-5, the blowing air from the blower outlet of a side surface can be blown off at an appropriate angle with respect to the front direction of an air conditioner. Therefore, when used as an indoor unit, it becomes possible to supply conditioned air to a desired place in the room, and the comfort in the room can be improved.

  Moreover, according to the invention which concerns on Claim 6, from the front side blower outlet formed in the front surface of a casing between two adjacent centrifugal blowers, air blows off toward the front direction of an air conditioner. become. Therefore, when used as an indoor unit, air-conditioned air can be supplied to the entire room, and indoor comfort can be improved.

  Hereinafter, an embodiment in which the present invention is embodied in an indoor unit of an air conditioner will be described with reference to FIGS. FIG. 1 is a cross-sectional view of an air conditioner 10 according to the present embodiment, in which (a) shows a state in which air conditioning is stopped, and (b) shows a state in which air conditioning is in operation. FIG. 2 is a perspective view of the air conditioner 10, where (a) shows a state in which the air conditioning operation is stopped, and (b) shows a state in which the air conditioning operation is in progress. FIG. 3 is a longitudinal sectional view of the air conditioner 10.

  As shown in FIGS. 1 to 3, the air conditioner 10 of the present embodiment includes a horizontally long box-shaped casing 11, and the back surface (rear surface) of the casing 11 is shaped like a horizontal beam near a ceiling (for example, close to the ceiling). It is configured as a wall-mounted thin indoor unit that is installed in a state of being opposed to a narrow vertical wall surface portion.

  The casing 11 includes a casing main body 12 having an open front side and a front panel 13 that closes the front side of the casing main body 12. Suction ports 14 in which a plurality of long flaps 9 are arranged in the vertical direction are provided at two positions separated in the left-right direction on the front surface side (front side) of the front panel 13. Further, a front-side air outlet 15F in which a plurality of short flaps 8 are arranged in the vertical direction is provided between the two suction ports 14. Furthermore, the right side outlet and the left side outlet of the casing 11 are provided with a right outlet 15R and a left outlet 15L that can be opened and closed, respectively. In FIG. 2B, the long flap 9 and the air filter 17 described later are omitted for the right suction port 14.

  A right wall plate 30R is attached to the right outlet 15R so as to be rotatable about a support shaft 31R. The support shaft 31R is provided along the vertical direction. Therefore, the right wall plate 30R rotates in the left-right direction to open and close the right outlet 15R. Inside the right wall plate 30R (on the casing 11 side), a top plate 32R is attached to the upper end, and a bottom plate 33R is attached to the lower end. By providing the top plate 32R and the bottom plate 33R, when the right side wall plate 30R is opened, it is possible to prevent the blown air from blowing upward and downward. The top plate 32R and the bottom plate 33R have the same shape, and are plate members having a fan shape in plan view. The top plate 32R and the bottom plate 33R are arranged so that the arc-shaped end surfaces face forward, and one end surface of the pair of linear end surfaces is fixed to the inside of the right side wall plate 30R. The length of the arcuate end surface is set according to the opening angle of the right side wall plate 30R.

  Further, a plurality of flaps 34R are provided on the inner side of the right side wall plate 30R so as to be angularly displaceable between the top plate 32R and the bottom plate 33R at substantially equal intervals. The angular displacement axis of the flap 34R is set in a direction perpendicular to the surface of the right side wall plate 30R. Therefore, the direction of the flap 34 </ b> R can be changed in the vertical direction, thereby controlling the blowing direction of the blown air.

  On the other hand, the left wall plate 30L is attached to the left outlet 15L so as to be rotatable around the support shaft 31L. Accordingly, the left wall plate 30L rotates in the left-right direction to open and close the left outlet 15L. A top plate (not shown), a bottom plate 33L, and a flap 34L are also provided on the inner side of the left side wall plate 30L.

  Next, the member arrangement configuration in the casing 11 will be described. As shown in FIG. 3, the casing body 12 is divided into an upper storage portion 2 and a lower storage portion 3 by a horizontal partition plate 1. An electrical component box 4, a refrigerant pipe 5, a drain pipe 6, and the like are arranged in the lower storage portion 3 in the casing 11.

  On the other hand, in the upper storage part 2 in the casing body 12, a plurality (a pair of left and right) centrifugal blowers 18 are arranged in the state where the rotation axis P is along the front-rear direction, that is, the depth direction of the casing 11. It arrange | positions so that it may oppose separately. Between each of the suction ports 14 and the centrifugal blowers 18 facing each other, a bell mouth 19 that is an air guide having an annular shape when viewed from the front is arranged so as to be coaxial with the centrifugal blowers 18.

  Each bell mouth 19 is formed so as to form a divergent shape from the rear side on the centrifugal blower 18 side to the front side on the suction port 14 side, that is, the front side in the depth direction of the casing 11. Each bell mouth 19 is attached by supporting a front end edge of the bell mouth 19 with respect to the front panel 13 by a support member 28 formed on the back side of the suction port 14. Further, each bell mouth 19 has a rear end edge formed to have a smaller diameter than the front end edge thereof and extends to the vicinity of the front end of the centrifugal blower 18, and directs the air flowing into the casing 11 from the suction port 14 toward the centrifugal blower 18. It is designed to guide you smoothly. A filter frame 16 is integrally formed on the front edge of the bell mouth 19, and an air filter 17 is detachably held on the filter frame 16. The long flap 9 described above is arranged on the front side of the air filter 17.

  The centrifugal blower 18 includes a blade portion 22 including a hub 20 having a substantially disk shape, and a plurality of arc-shaped blades 21 projecting forward from the front surface of the outer peripheral portion of the hub 20, and the blade A motor 23 for rotating the portion 22 and a shroud 24 disposed on the front end side of the blade portion 22 are provided. The centrifugal blower 18 has a centrifugal blower function that blows air from the centrifugal blower 18 toward the centrifugal direction (radial direction) orthogonal to the rotation axis P by centrifugal force generated based on the rotational drive of the blade portion 22. It is. Each centrifugal blower 18 has a motor 23 fixed to the rear side wall surface of the casing 11 and a support shaft 23a projecting from the motor 23 forward so as to coincide with the axis of rotation P. The blade portion 22 of each centrifugal blower 18 is rotatably supported at the front end portion of the centrifugal fan 18.

  Further, in the casing body 12, a pair of left and right heat exchangers 25 are arranged on both the left and right sides of the centrifugal blower 18 so as to sandwich the centrifugal blower 18 from both the left and right sides. Each heat exchanger 25 is configured by stacking a plurality of heat transfer plates and arranging a plurality of fins between the heat transfer plates in a direction perpendicular to the stacking direction of the heat transfer plates. In the present embodiment, in each heat exchanger 25, the stacking direction of the heat transfer plates is parallel to the rotation axis P of the centrifugal blower 18, and the fin arrangement direction is parallel to the vertical plane including the rotation axis P of the centrifugal blower 18. It is arranged to be.

  That is, each heat exchanger 25 is arranged so that the center of each heat exchanger 25 is located at a position with an angular interval of 180 degrees with respect to the rotation axis P of the centrifugal blower 18. The heat exchangers 25 that are paired with each other are arranged in an arrangement manner that is plane-symmetric when the vertical plane including the rotation axis P of the centrifugal blower 18 is a symmetry plane. And by setting it as such an arrangement | positioning aspect, each heat exchanger 25 overlaps with this centrifugal blower 18 partially in the direction orthogonal to the rotating shaft P of the centrifugal blower 18, respectively. In the present embodiment, when the direction along the rotation axis P of the centrifugal blower 18 is the depth direction, the entire length in the depth direction of the centrifugal blower 18 overlaps a part of the length in the depth direction of the heat exchanger 25. Has been.

  In the casing body 12, a guide block 26 having an arcuate guide surface 26 a on the surface facing the heat exchanger 25 on the back side of the heat exchanger 25 when viewed from the centrifugal blower 18. Each is arranged. And between each guide block 26 and each heat exchanger 25, the air blowing flow paths 27F, 27R, and 27L each connected to the blower outlets 15F, 15R, and 15L are provided. Therefore, after the air blown in the radial direction from the centrifugal blower 18 passes between the fins of the heat exchanger 25, the air blowing flow is along the guide surface 26a in the air blowing channels 27F, 27R, and 27L. It will be guided smoothly in the direction of the outlets 15F, 15R, 15L.

  Next, the operation in the air conditioner 10 of the present embodiment configured as described above will be described. When the air conditioning operation is instructed, the long flap 9 disposed on the front side of the suction port 14 is opened, the short flap 8 is opened, and the right side wall plate 30R and the left side wall plate 30L are opened. Thereafter, when the blade portion 22 of the centrifugal blower 18 is rotationally driven based on the driving force of the motor 23, air is sucked into the casing 11 from the suction port 14, as indicated by arrows A1 and A2 in FIG. The sucked air passes through the air filter 17 and is then smoothly guided to the centrifugal blower 18 along the inner surface of the bell mouth 19. Then, the air flowing into the centrifugal blower 18 is blown out in the radial direction perpendicular to the rotation axis P as indicated by arrows A1 and A2 in FIG.

  The air blown out from the centrifugal blower 18 passes between the fins of the respective heat exchangers 25 arranged upright in parallel on the left and right sides of the centrifugal blower 18, and at that time, the heat exchanger via the refrigerant pipe. The temperature is adjusted (heated or cooled) by heat exchange with the refrigerant flowing in 25. Here, the heat exchangers 25 arranged on the left and right sides of the centrifugal blower 18 are arranged in plane symmetry when the vertical plane including the rotation axis P of the centrifugal blower 18 is a symmetrical plane. Therefore, the air volume distribution of the air that passes through each heat exchanger 25 and is blown out from the back surface of each heat exchanger 25 is substantially uniform on the left and right.

  Thereafter, the air blown out from the back surface of each heat exchanger 25 flows into the air blowing channels 27F, 27R, 27L formed between the heat exchangers 25 and the guide block 26. In the air blowing flow path 27F, as shown by an arrow A1 in FIG. 1, the air is directed to the front side by a guide surface 26a having an arcuate surface formed on the inner surface side of the guide block 26. It is smoothly guided toward the outlet 15F. Therefore, the pressure loss of the air blowing flow in the air blowing flow path 27F is suitably reduced. Further, in the air blowing channels 27R and 27L, as shown by an arrow A2 in FIG. 1, the air has a guide surface 26a in which the direction of the air blowing flow forms an arcuate surface formed on the inner surface side of the guide block 26. Are smoothly guided toward the right outlet 15R and the left outlet 15L. Therefore, the pressure loss of the air blowing flow in the air blowing flow paths 27R and 27L is suitably reduced.

  The air guided to the air outlets 15F, 15R, 15L through the air outlet channels 27F, 27R, 27L is blown out of the casing 11 from the air outlets 15F, 15R, 15L. That is, in the air conditioner 10 of this embodiment, indoor air is sucked from the front side of the casing 11, and air whose temperature is adjusted is blown out from the front side and side surfaces of the casing 11 into the room. At that time, the temperature-adjusted air includes a front-side air outlet 15F provided between the two inlets 14, and a right-side air outlet 15R and a left-side air outlet 15L provided on the right side surface and the left side surface of the casing 11, respectively. Therefore, the air is blown out to the outside of the casing 11 and thus blown over a wide range in the left-right direction.

  In the air conditioner 10 of the present embodiment, the right side wall plate 30R and the left side wall plate 30L of the casing 11 are configured to be openable and closable, the right side air outlet 15R and the left side air outlet 15L are formed on the side surface of the casing 11, and the blown air is Since it blows off from the side surface of the casing 11, the pressure loss of blowing air is reduced compared with the case where a blower outlet is formed in the front surface of the side wall vicinity. That is, the blown air from the centrifugal blower 18 is blown in a substantially vertical direction toward the side wall, but when the right side outlet 45R and the left side outlet 45L are formed on the front surface in the vicinity of the side wall as shown in FIG. As indicated by the arrow A3, the traveling direction of the blown air is bent by approximately 90 degrees and blown out from the blowout ports 45R and 45L, so that the pressure loss is relatively increased. On the other hand, in the present embodiment, the right side wall plate 30R and the left side wall plate 30L are opened to open the outlets 15R and 15L. Can be reduced.

  Further, since the blown air can be blown in an oblique direction inclined outward with respect to the front direction of the air conditioner 10, the conditioned air can be supplied to the entire room, and the temperature distribution in the room can be made uniform. You can plan. As a result, the comfort in the room can be improved.

  The right side wall plate 30 </ b> R and the left side wall plate 30 </ b> L are configured to open in the range of 5 degrees to 75 degrees with respect to the rotation axis P of the centrifugal blower 18. Thereby, the air blown from the right outlet 15R and the left outlet 15L can be blown out at an appropriate angle with respect to the front direction of the air conditioner 10. Therefore, the conditioned air can be supplied to a desired place in the room, and the comfort in the room can be improved.

  Further, when the right side wall plate 30R and the left side wall plate 30L are opened by 5 degrees to 10 degrees, the air blown from the right air outlet 15R and the left air outlet 15L can be blown out substantially in the front direction of the air conditioner 10. That is, as shown in FIG. 4, when the right air outlet 45R and the left air outlet 45L are formed on the front surface in the vicinity of the side wall, the blowing direction of the blowing air is bent by approximately 90 degrees, but strictly speaking, it is 90 degrees. Is bent by a slightly larger angle (about 95 to 100 degrees) and blown in a direction inclined inward with respect to the front direction (see arrow A3). On the other hand, in the present embodiment, the right side wall plate 30R and the left side wall plate 30L are opened by an angle inclined inward with respect to the front direction, whereby the air blown from the right side outlet 15R and the left side outlet 15L is substantially in the front direction. Can be blown out.

  Further, when the right side wall plate 30R and the left side wall plate 30L are opened approximately 60 degrees, the air blown from the right side outlet 15R and the left side outlet 15L can be efficiently blown in an oblique direction. This makes it possible to efficiently supply conditioned air to the entire room.

  Further, since the flaps 34R and 34L are formed inside the right side wall plate 30R and the left side wall plate 30L, the blowing direction of the air blown from the right side air outlet 15R and the left side air outlet 15L is the right side wall plate 30R and the left side wall plate 30L. Is controlled in the left-right direction, and is controlled in the vertical direction by the flaps 34R, 34L. Therefore, since the blowing direction can be set in a desired direction, the conditioned air can be supplied to a desired place in the room, and the comfort in the room can be improved.

  Furthermore, in this embodiment, regarding the front side air outlet 15F, the air blown from the pair of centrifugal blowers 18 arranged with the front side air outlet 15F interposed therebetween is joined and guided to the front side air outlet 15F. ing. As a result, air is blown out from the front side air outlet 15 </ b> F toward the substantially front direction of the air conditioner 10.

  That is, in order to blow out the blown air from the two centrifugal blowers 18 individually from the front-side blower outlet 15F, as shown in FIG. 4, the guide surface 46a of the guide block 46 is blown in the blown-out direction of the blown air. Must be formed so that it can be bent approximately 90 degrees. In this configuration, since the guide surface 46a functions in the same manner as the side surface of the casing 11, the blown air is strictly bent at an angle slightly larger than 90 degrees (about 95 degrees to 100 degrees) as described above. It blows out in a direction inclined inward with respect to the front direction (see arrow A4). On the other hand, in this embodiment, since each blowing air from the two centrifugal blowers 18 is merged and guided to the front-side outlet 15F, the blowing air from the front-side outlet 15F can be blown out substantially in the front direction. become able to. Therefore, the conditioned air can be supplied to the entire room, and the comfort in the room can be improved.

  Further, when the air conditioner 10 is installed on the indoor wall surface, the rear surface of the casing 11 (casing body 12) is fixed in a state of facing the indoor wall surface. Here, in the air conditioner 10, in the casing 11, the centrifugal blower 18 and the heat exchanger 25 are not arranged in the front-rear direction, which is the depth direction of the air conditioner 10, but in the left-right direction orthogonal to the depth direction. It is set as the arrangement | positioning aspect which overlaps partially. Further, the centrifugal blower 18 and the heat exchanger 25 are not arranged in the casing 11 so as to overlap in the vertical direction. Therefore, the size of the air conditioner 10 in the front-rear direction and the up-down direction is compact. It becomes possible to install without impairing the property.

According to the above embodiment, the following effects can be obtained.
(1) In the above embodiment, the centrifugal blower 18 and the heat exchanger 25 are not arranged in the casing 11 so as to overlap in the front-rear direction of the casing 11 (the depth direction of the air conditioner 10). The arrangement is overlapped in the left-right direction orthogonal to P. Therefore, it is possible to suitably cope with a request for downsizing of the air conditioner 10 to improve indoor interior properties, that is, downsizing. Moreover, when setting it as such an arrangement | positioning aspect, since the centrifugal blower 18 is not reduced in size, a required and sufficient air volume can be ensured and the performance as the air conditioner 10 does not fall.

  (2) In the above embodiment, the air blown from the right outlet 15R and the left outlet 15L can be blown at an appropriate angle with respect to the front direction of the air conditioner 10. Therefore, the conditioned air can be supplied to a desired place in the room, and the comfort in the room can be improved.

  (3) In the above embodiment, air blows out from the front side air outlet 15F toward the front direction of the air conditioner 10. Therefore, the conditioned air can be supplied to the entire room, and the comfort in the room can be improved.

(A) and (b) are the cross-sectional views of the air conditioner which is one Embodiment of this invention. (A) (b) The perspective view which shows the external appearance of an air conditioner. The longitudinal cross-sectional view of an air conditioner. The cross-sectional view which shows the structure of the comparative example with respect to the air conditioner of this invention.

Explanation of symbols

  8 ... Short flap, 9 ... Long flap, 10 ... Air conditioner, 11 ... Casing, 12 ... Casing body, 13 ... Front panel, 14 ... Suction port, 15F ... Front side outlet, 15R ... Right side outlet, 15L DESCRIPTION OF SYMBOLS ... Left outlet, 16 ... Filter frame, 17 ... Air filter, 18 ... Centrifugal blower, 19 ... Bell mouth, 20 ... Hub, 21 ... Blade, 22 ... Blade part, 23 ... Motor, 23a ... Support shaft, 24 ... Shroud , 25 ... heat exchanger, 26 ... guide block, 26a ... guide surface, 27F, 27R, 27L ... air blowing channel, 28 ... support member, 30R ... right side wall plate, 30L ... left side wall plate, 31R, 31L ... support Axis, 32R, 32L ... top plate, 33R, 33L ... bottom plate, 34R, 34L ... flap, P ... rotation axis.

Claims (6)

A centrifugal blower is disposed in a casing provided with an air inlet and an air outlet, respectively, such that the rotational axis of the centrifugal blower is along the depth direction of the casing, and the heat exchanger is disposed on the rotational axis of the centrifugal blower. An air conditioner arranged to at least partially overlap with the centrifugal blower in a direction orthogonal to
An air conditioner characterized in that the side wall portion of the casing is configured to be openable and closable to form the air outlet, the side wall portion is opened during air conditioning operation, and the side wall portion is closed during air conditioning operation stop. .   The air conditioner according to claim 1, wherein the side wall portion opens in a range of 5 degrees to 75 degrees with respect to a rotation axis of the centrifugal blower.   The air conditioner according to claim 2, wherein the side wall portion is opened by 5 degrees to 10 degrees.   The air conditioner according to claim 2, wherein the side wall portion is opened by approximately 60 degrees.   The air conditioner according to any one of claims 1 to 4, wherein a flap is formed inside the side wall portion.   A plurality of the centrifugal blowers are arranged in the casing so as to be along a direction orthogonal to the rotation axis, and a front-side air outlet is formed between the adjacent centrifugal blowers on the front surface of the casing. The blowout air from a pair of centrifugal blowers arranged with the blower outlet interposed therebetween is joined and guided to the front-side blower outlet according to any one of claims 1 to 5. Air conditioner.

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