KR20070024705A - Air conditioner - Google Patents

Abstract

A centrifugal fan is arranged in the casing so as to extend its axis of rotation along the depth direction of an air conditioner. A pair of heat exchangers are arranged on the right and left sides of the centrifugal fan so as to superimpose on the centrifugal fan when viewed from the direction perpendicularly intersecting the axis of rotation of the centrifugal fan. In other words, each heat exchanger is arranged symmetrically with respect to a vertical plane including the axis of rotation of the centrifugal fan. Accordingly, the centrifugal fan and the heat exchanger do not overlap in the depth direction of the air conditioner in the casing. Thus, the air conditioner can be made compact in the depth direction. ® KIPO & WIPO 2007

Description

Air Conditioner {AIR CONDITIONER}

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

Conventionally, as this kind of air conditioner, the indoor unit (henceforth "the conventional air conditioner 1") of the air conditioner as described in patent document 1 is known, for example. In the conventional air conditioner 1, the heat exchanger is arrange | positioned in the box-shaped casing. The heat exchanger is arranged to face the suction port formed on the front surface of the casing. In addition, a centrifugal blower is disposed in the casing. The centrifugal blower is arranged on the back side of the heat exchanger. According to the conventional air conditioner 1, first, the centrifugal blower is driven, whereby air is sucked into the casing from the suction port. Then, the air is blown out of the casing from the air outlets formed in the upper and left and right surfaces of the casing after the temperature is adjusted through the heat exchanger.

Moreover, apart from the conventional air conditioner 1 which uses a centrifugal blower for a blower, for example, as described in patent document 2, the indoor unit for air conditioning which used the cross flow blower for a blower (henceforth "a conventional air conditioner 2"). Also known. In the conventional air conditioner 2, the cross flow blower is arrange | positioned at the upper part in the box-shaped casing. Further, a heat exchanger is disposed below the cross flow blower in the casing. According to the conventional air conditioner (2), first, the cross flow blower is driven, whereby air is sucked into the casing from the intake grill formed at the upper front of the casing. Then, the air is blown out of the casing from the blowout grill formed in the front lower part of the casing after the temperature is adjusted through the heat exchanger.

Patent Document 1: Japanese Patent Application Laid-open No. Hei 10-122589

Patent Document 2: Japanese Patent Application Laid-open No. Hei 9-217942

However, in recent years, the air conditioner is required to be compact in the depth direction (thinner) from the viewpoint of reducing the installation space. In particular, in the case where the air conditioner is a wall-mounted indoor unit provided on the wall of the room, a request for thinning is high in order to improve the interior of the room. Moreover, in a wall-mounted indoor unit, since installation space is restrict | limited on the indoor wall surface, the compaction of the height direction is also requested | required.

In this regard, in the conventional air conditioner 1, the heat exchanger and the centrifugal blower are arranged in the casing so as to overlap in the depth direction. Therefore, it was hard to say that it fully responded to the request of compacting in the depth direction. In the conventional air conditioner 2, the heat exchanger and the cross flow blower are arranged in the casing so as to overlap in the vertical direction. Therefore, it was difficult to say that the request for compacting in the height direction was sufficiently met. In addition, in order to achieve thinness and compactness in the height direction in the conventional air conditioner 2, it is also conceivable to reduce the fan diameter of the cross flow blower. However, in this case, since the air volume decreases and the performance of the air conditioner decreases, it is not easy to appropriately respond to requests for thinning and compacting in the height direction.

In view of the above circumstances, the present invention can sufficiently satisfy the request for compacting in the depth direction without degrading the performance of the air conditioner in the air conditioner in which the heat exchanger and the blower are disposed in the casing. The purpose is to provide an air conditioner.

In order to solve the said subject, according to the 1st aspect of this invention, the centrifugal blower is arrange | positioned so that the rotation axis of the centrifugal blower may follow the depth direction of a casing in the casing provided with the air intake port and the blowout port, respectively. The heat exchangers are arranged so as to overlap at least partially with the centrifugal blowers when viewed in a direction orthogonal to the rotation axis of the centrifugal blowers.

By the above configuration, the centrifugal blower and the heat exchanger do not overlap in the casing's depth direction in the casing, but overlap when viewed in a direction orthogonal to the casing's depth direction. Therefore, it can respond suitably to the request for compaction of the depth direction of an air conditioner.

In the above air conditioner, a plurality of heat exchangers are disposed in the casing, and each heat exchanger is preferably arranged at an angular interval of 180 degrees or 90 degrees when centering the rotation axis of the centrifugal blower. In that case, a heat exchanger can be arrange | positioned at the several position in the air extraction side of a centrifugal blower, and, thereby, heat exchange efficiency can be improved favorably.

In the above air conditioner, each heat exchanger disposed at an angular interval of 180 degrees when the rotational axis of the centrifugal blower is centered so that the surface symmetry is made on the basis of the vertical plane or the horizontal plane including the rotational axis of the centrifugal blower. It is preferable to arrange. In that case, the air volume distribution of the air blown out of the casing from the blowout port through each heat exchanger can be made uniform.

In said air conditioner, it is preferable that the fin which comprises at least one heat exchanger of each heat exchanger is laminated | stacked in the direction which inclines with respect to the rotation axis of a centrifugal blower. In that case, an effective heat exchange area can be ensured widely, and the heat exchange efficiency in an air conditioner can be improved favorably.

In the above air conditioner, in the casing, an air blowout flow passage communicating with a blowout port is provided on the rear side of the heat exchanger in the case of the centrifugal blower, and an inner surface of the heat exchanger on the inner surface facing the back of the heat exchanger. It is preferable that the guide surface which can smoothly guide the air blow-out flow blown out from the back surface toward a blower outlet is provided. In that case, the air blown out from the back of the heat exchanger can be guided smoothly to the blowout port. Therefore, the pressure loss of the air blow-out flow in the air blow-out flow path can be reduced as much as possible.

In the above air conditioner, the centrifugal blower is disposed so as to face the intake port provided on the front side of the casing, and between the intake port and the centrifugal blower, an air guide axially inward toward the inside of the casing is disposed. Do. In that case, air can be smoothly introduced into the centrifugal blower from the suction port through the air guide. Therefore, the noise at the time of air inhalation can be reduced.

In the above air conditioner, it is preferable that a suction port is provided at the front of the casing in the casing, and a blowout port is provided at the front of the casing. In that case, the air sucked in from the front face of the casing is blown out from the front face of the casing. Therefore, when installing an air conditioner, it can respond flexibly so that the direction of air blow-out from a blower outlet may become suitable according to the surrounding environment in which the air conditioner is installed.

In said air conditioner, a casing is provided in the state which made the back surface of the casing oppose the wall surface of the room, and it is preferable that a suction port and a blowout port are provided in the front surface of a casing, respectively. In that case, suction of the air into the casing and extraction of the air to the outside of the casing become front suction and front blow-out. Therefore, the air conditioner which is a wall-mounted indoor unit can be installed in the vicinity of the ceiling of the room, and even if it is installed near the window, it is possible to avoid the temperature change by the air blown out from the outlet by heat exchange with the window.

In the above air conditioner, the inlet port and the outlet port are preferably provided so that the outlet ports are respectively located on the left and right sides of the inlet port from the front surface of the casing. In that case, since the air temperature-controlled is respectively taken out from each blower outlet provided in the left and right both sides of the intake port, air can be taken out over a wide range.

In the above air conditioner, a plurality of suction ports are provided on the front face of the casing, and a plurality of centrifugal blowers are disposed in the casing so as to face each of the suction ports, and at the same time, heat exchangers are respectively disposed on the left and right sides of the centrifugal blower within the casing. In addition, it is preferable that an air blow-out flow path is provided between the rear face of each heat exchanger and each blower outlet for guiding the air blow-out flows drawn from the back of each heat exchanger toward each blower outlet. In this case, the air conditioner can be enlarged according to the size of the indoor space in which the air conditioner is installed.

As a result, according to the air conditioner according to the present invention, in the air conditioner in which the heat exchanger and the blower are disposed in the casing, the air conditioner can satisfactorily meet the request for compaction in the depth direction, without degrading the performance of the air conditioner. have.

1 is an external perspective view illustrating an installation state of an air conditioner according to the present embodiment.

2 is a partially omitted perspective view showing the internal configuration of the air conditioner.

3 is a plan sectional view of the air conditioner.

4 is a partially omitted perspective view showing an internal configuration of another example of the air conditioner.

5 is a partially omitted perspective view showing an internal configuration of another example of the air conditioner.

6 is a partially omitted perspective view showing an internal configuration of another example of the air conditioner.

7 (a) and 7 (b) are partially omitted attempts showing the internal configuration of another example of the air conditioner.

8 is a plan sectional view of another example of the air conditioner.

9 is an external perspective view illustrating an installation state of another example of the air conditioner.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment which actualized the air conditioner of this invention is described based on FIGS.

As shown in FIG. 1, the air conditioner 10 of this embodiment is equipped with the horizontally long box-shaped casing 11. As shown in FIG. The air conditioner 10 is a wall-mounted thin indoor unit provided by facing the rear surface (back side) of the casing 11 to a wall surface in the room, for example, a wall surface W near the ceiling. The casing 11 consists of the casing main body 12 opened to the front, and the front panel 13 which closes the front opening of the casing main body 12. The suction port 14 is formed in two places separated from the front panel 13 in the left-right direction. Each suction port 14 is provided by arranging a plurality of long flaps in the height direction. Further, blowout ports 15 are formed inside and outside the respective suction ports 14, respectively. Each outlet 15 is made by arranging a plurality of short flaps in the height direction. Moreover, a pair of refrigerant pipes 16 are drawn out from the right wall 12b of the casing main body 12. A connection unit 17 is provided at the lead end of each refrigerant pipe 16.

Next, the structure of the member arrange | positioned in the casing 11 is demonstrated based on FIG. 2 and FIG. In addition, FIG. 2 removes the front panel 13 from the casing 11 of the air conditioner 10 shown in FIG. 1, and simultaneously shows the upper wall 12a and the right wall 12b of the casing main body 12. As shown in FIG. It is a schematic perspective view which abbreviate | omitted. In FIG. 2, the piping state and the drain of the refrigerant pipe 16 in the casing 11 are omitted. 3 is a plan sectional view of the air conditioner 10 shown in FIG. 1 in the intermediate position of the height direction.

2 and 3, a plurality of centrifugal blowers 18 are disposed in the casing 11. Each centrifugal blower 18 is arrange | positioned at the back surface of the casing 11 along the rotation axis P along the front-back direction (that is, the depth direction of the casing 11). Moreover, each centrifugal blower 18 is arrange | positioned facing each inlet 14. As shown in FIG. And between each suction port 14 and the centrifugal blower 18, the air guide (bell mouse) 19 which forms an annular view from the front is arrange | positioned. Each air guide 19 is arranged coaxially with the corresponding centrifugal blower 18. Each air guide 19 is reduced in diameter from the front surface of the casing 11 toward the back surface. As shown in FIG. 3, the circumferential edge of all the openings of the respective air guides 19 is inserted into the front panel 13 from the rear surface of the suction port 14 and is supported. Thereby, each air guide 19 is being fixed with respect to the casing 11. For each air guide 19, the rear circumferential edge formed to have a diameter smaller than the front circumferential edge extends to the vicinity of the front end of the centrifugal blower 18. Each air guide 19 smoothly guides the air flowing into the casing 11 from the inlet 14 toward the centrifugal blower 18.

The centrifugal blower 18 is provided with the blade part 22 and the motor 23 for driving the blade part 22. The wing part 22 consists of the hub 20 which comprises substantially disk shape, and the blade 21 of many sheets. Each vane 21 protrudes toward the front from the front surface of the outer peripheral part of the hub 20. The outer shape when the wing | blade part 22 is seen from the front is substantially the same as the opening of the rear peripheral edge of the air guide 19, and has substantially the same magnitude | size. In each centrifugal blower 18, the motor 23 is fixed to the rear wall surface of the casing 11, and the support shaft 23a protrudes from the motor 23 toward the front. At the distal end of the support shaft 23a, the blade 22 of each centrifugal blower 18 is freely supported around the rotation axis P. As shown in FIG. In the centrifugal blower 18, centrifugal force is generated based on the rotation of the vanes 22. The air is blown out of the centrifugal blower 18 toward the centrifugal direction (radial direction) by the centrifugal force.

Moreover, in the casing 11 (casing main body 12), a pair of heat exchangers 24 are arrange | positioned at the left and right both sides of the centrifugal blower 18. As shown in FIG. Each heat exchanger 24 is made by stacking a plurality of fins 24a. In this embodiment, the lamination direction of each pin 24a becomes a direction parallel to the vertical plane containing the rotation axis P of the centrifugal blower 18. In addition, the center position of each heat exchanger 24 is arrange | positioned at the angular interval of 180 degree when centering on the rotation axis P of the centrifugal blower 18. As shown in FIG. Each of the heat exchangers 24 paired from left to right is arranged to be symmetrical with respect to the vertical plane including the rotation axis P of the centrifugal blower 18. Each heat exchanger 24 is arrange | positioned so that it may partially overlap with the centrifugal blower 18, viewed from the direction orthogonal to the rotation axis P of the centrifugal blower 18. As shown in FIG. In this embodiment, the depth dimension of the centrifugal blower 18 is set to be substantially the same as the depth dimension of the heat exchanger 24.

Moreover, in the casing 11, the guide block 25 is arrange | positioned in the back side direction of the heat exchanger 24 at the time of seeing from the centrifugal blower 18. As shown in FIG. The guide block 25 has a circular guide surface 25a having a circular cross section, and the guide surface 25a faces the heat exchanger 24. An air blowout passage 26 communicating with the blowout port 15 is formed between the guide block 25 and the heat exchanger 24. Therefore, after the air blown out from the centrifugal blower 18 in the radial direction passes between the fins 24a of the heat exchanger 24 and flows into the air blowout flow passage 26, the guide block 25 is used. It is smoothly guided to the outlet 15 along the guide surface (25a) of the.

Next, the effect | action of the air conditioner 10 of this embodiment is demonstrated below.

By the way, when the motor 23 is driven and the blade part 22 of the centrifugal blower 18 is rotated, as shown by arrow A in FIG. 3, air will be centrifuged from each inlet 14 of the front surface of the casing 11. It is sucked toward the blower 18. At that time, a large amount of air is sucked from each suction port 14, and air flows smoothly into the centrifugal blower 18 along the inner surface of the air guide 19. And the air which flowed into the centrifugal blower 18 is blown out in radial direction as shown by the arrow a in FIG.

The air taken out from the centrifugal blower 18 passes between the fins 24a of the heat exchangers 24 arranged on the left and right sides of the centrifugal blower 18. At that time, the air is exchanged through the refrigerant pipe 16 between the refrigerant flowing in the heat exchanger 24, whereby the temperature is adjusted (heated or cooled). Here, each heat exchanger 24 is arrange | positioned so that it may become surface symmetry with respect to the perpendicular | vertical plane containing the rotation axis P of the centrifugal blower 18. As shown in FIG. Therefore, the air volume distribution of the air which passes through each heat exchanger 24, and is taken out from their back surface becomes substantially uniform left and right.

Thereafter, air taken out from the rear surface of each heat exchanger 24 flows into the air blowout flow passage 26 between each heat exchanger 24 and the guide block 25. The air which flowed into the air blow-out flow path 26 is guided smoothly to the blowout port 15 along the guide surface 25a of the guide block 25, as shown by the arrow b in FIG. Therefore, the pressure loss of the air blow-out flow in the air blow-out flow path 26 is moderately reduced.

Then, the air guided into the air outlet passage 26 to the outlet 15 is blown out of the casing 11 from the outlet 15. That is, in the air conditioner 10 of this embodiment, after indoor air is inhaled and temperature-adjusted from the front surface of the casing 11, air is blown out from the front surface of the casing 11 to indoors. At that time, air is blown out of the casing 11 from each of the blowout ports 15 on the left and right sides of the suction port 14, as indicated by arrow B in FIG. 3. Thereby, the temperature adjusted air is blown out over a wide range.

In addition, when installing the air conditioner 10 indoors, as shown to FIG. 1 and FIG. 3, it is fixed to the wall surface W of the room from the back surface of the casing 11. In the air conditioner 10 of the present embodiment, in the casing 11, the centrifugal blower 18 and the heat exchanger 24 do not overlap when viewed from the depth of the air conditioner 10, that is, in the front-rear direction. And are arranged adjacently. In addition, the centrifugal blower 18 and the heat exchanger 24 do not overlap with the up-down direction in the casing 11. Therefore, the size of the front-back direction and the height direction of the air conditioner 10 becomes compact. Therefore, for example, even the wall surface near the ceiling can be provided with less protruding to the interior side, whereby the interior interior of the interior is not impaired.

According to the air conditioner 10 of the said embodiment, the following effects can be acquired.

(1) In the casing 11, the centrifugal blower 18 and the heat exchanger 24 do not overlap in the front-back direction of the casing 11 (depth direction of the air conditioner 10), and the centrifugal blower 18 They overlap when viewed in a direction orthogonal to the rotation axis P of. Therefore, the compactness of the depth direction of the air conditioner 10 required in order to improve the interior decoration of a room can be aimed at suitably. In addition, since it is not necessary to reduce the size of the centrifugal blower 18 when employing the arrangement, a sufficient air volume can be ensured and the performance of the air conditioner 10 does not deteriorate.

(2) The heat exchanger 24 is arrange | positioned at the left and right both sides (plural positions) from which the air is blown out from the centrifugal blower 18 in the casing 11, respectively. Therefore, the air blown out in the radial direction from the centrifugal blower 18 can be heat-exchanged with each heat exchanger 24, and heat exchange efficiency can be improved.

(3) A pair of heat exchangers 24 are arranged on both sides of one centrifugal blower 18. And each heat exchanger 24 is arrange | positioned so that it may become surface symmetric with respect to the vertical plane containing the rotation axis P of the centrifugal blower 18. As shown in FIG. Therefore, after adjusting temperature through each heat exchanger 24, the air volume distribution of the air blown out from each blower outlet 15 can be made uniform.

(4) In addition, air taken out from the rear surface of the heat exchanger 24 and introduced into the air blowout flow passage 26 is smoothly guided to the blowout outlet 15 along the guide surface 25a of the guide block 25. Therefore, the pressure loss of the air blowout flow in the air blowout passage 26 can be reduced as much as possible.

(5) On the other hand, the air sucked into the centrifugal blower 18 in the casing 11 from the inlet 14 is transferred to the centrifugal blower by the air guide 19 disposed between the centrifugal blower 18 and the inlet 14. 18) It can flow in smoothly. Therefore, the noise produced when the air is sucked into the casing 11 from the suction port 14 can be appropriately reduced.

(6) Moreover, in this embodiment, after the air sucked in from the inlet port 14 formed on the front surface of the casing 11 is temperature-controlled, the outlet port 15 formed on the front surface of the casing 11 in the same manner as the inlet port 14. Is taken out from the front. Therefore, in the case of the wall-mounted air conditioner 10 in which the back surface of the casing 11 is contacted with the indoor wall W, the air blowing direction is taken into consideration while surrounding the environment such as a curtain rail or ceiling surface. It is possible to enable flexible installation of the air conditioner 10.

(7) In addition, as in the air conditioner 10 of the present embodiment, if the structure is sucked from the front surface and a configuration is taken out from the front surface, the wall-mounted air conditioner 10 is provided at the upper portion of the wall surface W in the room. Even if it is installed in the vicinity of the ceiling, it is not restricted about the inhalation and blowout of air. Moreover, even if such a wall-mounted air conditioner 10 is installed in the vicinity of a window, for example, the air blowing direction does not follow the surface of the window. Therefore, the air taken out by temperature adjustment is heat-exchanged with a window, and it can avoid that the temperature of air changes.

(8) And a pair of blowout ports 15 are formed in both sides of one intake port 14, and the air temperature-regulated from each blowout outlet 15 is blown out, respectively. Therefore, the air whose temperature was adjusted from the front surface of the casing 11 can be taken out over a wide range of indoors.

(9) In addition, in this embodiment, the air conditioning unit which consists of the centrifugal blower 18, the heat exchanger 24, the guide block 25, etc. is provided in the casing 11 (two in the left and right in this embodiment). Equipped). And the air sucked in from the intake port 14 of each air conditioning unit is taken out from the blowout port 15 of each air conditioning unit after temperature adjustment. Therefore, if the number of air conditioning units is changed according to the environment (size of the indoor space) in which the air conditioner 10 is installed, it is possible to provide appropriate air conditioning performance corresponding to the installation environment.

In addition, you may change the said embodiment as follows.

As shown in FIG. 4, in the casing 11, the heat exchanger 24 may be arranged on both the upper and lower sides of the centrifugal blower 18. That is, for each centrifugal blower 18, a pair of heat exchanger 24 is arrange | positioned at the upper and lower sides, and the guide block 25 is arrange | positioned at the back side of each heat exchanger 24, and the heat exchanger 24 and the guide are arranged. An air blowout passage 26 may be formed between the blocks 25. In this case, in each heat exchanger 24, the lamination direction of the fin 24a is arrange | positioned in parallel with the horizontal plane containing the rotation axis P of the centrifugal blower 18, and each heat exchanger paired up and down Reference numeral 24 is disposed so as to be symmetrical with respect to the horizontal plane. Moreover, as the position of the air blow-out flow path 26 changes, the position of the blowout opening 15 formed in the front surface of the casing 11 also changes. Hereinafter, the change of the position of this blower outlet 15 is the same also about each air conditioner 10 shown to FIGS. 5-7 mentioned later. In addition, in the modification of FIG. 4, it is preferable to arrange | position a partition member 27 between each air conditioning unit of right and left. Even if this arrangement is adopted, each heat exchanger 24 overlaps with the centrifugal blower 18 when viewed in a direction orthogonal to the rotation axis P, whereby the same effect as in the above embodiment can be obtained.

As shown in FIG. 5, in the casing 11, two heat exchangers 24 may be arranged at an angular interval of 90 degrees about the rotation axis P of the centrifugal blower 18. That is, the two heat exchangers 24 are arranged in an L shape by arranging each of the centrifugal blowers 18 on one of the upper side and the left and right sides, and the guide block 25 is placed behind each of the heat exchangers 24. It may arrange | position and may provide the air blow-out flow path 26 between the heat exchanger 24 and the guide block 25. FIG. Also in this case, it is preferable to arrange the partition member 27 between each of the left and right air conditioning units. Even if this arrangement is adopted, each heat exchanger 24 overlaps with the centrifugal blower 18 when viewed in the direction orthogonal to the rotation axis P, and hence the same effects as in the above embodiment can be obtained.

As shown in FIG. 6, in the casing 11, two heat exchangers 24 are arranged at an angular interval of 180 degrees about the rotation axis P of the centrifugal blower 18, and one heat exchanger is provided. One heat exchanger 24 may be arranged at an angular interval of 90 degrees with respect to 24. That is, the three heat exchangers 24 may be arranged in a U shape by arranging the centrifugal blowers 18 on the upper side and the left and right sides, respectively. Even if this arrangement is adopted, each heat exchanger 24 overlaps with the centrifugal blower 18 when viewed in a direction orthogonal to the rotation axis P, whereby the same effect as in the above embodiment can be obtained.

As shown to Fig.7 (a) (b), in the casing 11, the air-conditioning unit which consists of the centrifugal blower 18, the heat exchanger 24, the guide block 25, etc. is continuously arranged up and down. You may also In addition, the air conditioner 10 shown to FIG. 7 (a) rotates and arrange | positions the air conditioner 10 shown to FIG. 4 by 90 degrees, The air conditioner 10 shown to FIG. 7 (b) is The air conditioner 10 of this embodiment shown in FIG. 2 is rotated 90 degrees, and is arrange | positioned. Even if these arrangements are employed, each heat exchanger 24 overlaps with the centrifugal blower 18 when viewed in a direction orthogonal to the rotation axis P, whereby the same effect as in the above embodiment can be obtained.

In the air conditioner 10 of the said embodiment shown to FIGS. 1-3, and each other example shown to FIGS. 4-7, the direction of each heat exchanger 24 arrange | positioned in the casing 11 is shown in FIG. You may change it at an angle as shown. That is, you may arrange | position each heat exchanger 24 so that the lamination | stacking direction of the fin 24a of the heat exchanger 24 may cross at an angle with respect to the perpendicular | vertical plane (or horizontal plane) containing the said rotation axis P. As shown in FIG. In other words, you may arrange | position each heat exchanger 24 so that the fin 24a which comprises the heat exchanger 25 may be laminated | stacked in the direction inclined with respect to the rotation axis P of the centrifugal blower 18. As shown in FIG. In this case, the effective heat exchange area of the heat exchanger 24 which receives the air blown out from the centrifugal blower 18 can be made wide, and the heat exchange efficiency of the air conditioner 10 can be improved.

As shown in FIG. 9, the opening / closing panel 13a of the plurality of suction ports 14 formed in the front surface (front panel 13) of the casing 11 (two in every one suction port 14 in FIG. 9). It is good also as a structure which covers by. Of course, it is good also as a structure covered with one large opening / closing panel for every one inlet port 14. Also in this case, since the inlet port 14 appears on the front surface of the casing 11 by the opening operation in which the opening / closing panel 13a swings forward with the lower edge as a point, the front suction shown in the above embodiment and each other example. The same effect as that of the front air conditioner 10 can be obtained.

In the above embodiment and each other example, although each outlet 15 is formed on the front surface of the casing 11 together with the inlet 14, the air conditioner 10 is installed in an environmental condition (indoor environment, etc.). Therefore, you may form each ejection opening 15 in the upper surface, lower surface, and left and right sides of the casing 11, respectively.

The air guide 19 disposed between the suction port 14 and the centrifugal blower 18 may be omitted.

The guide surface 25a for guiding the air introduced into the air blowout passage 26 to the blowout outlet 15 may be a slope, and the guide block 25 may be omitted, and a guide surface (not shown) may be provided on the inner surface of the casing 11. You may form 25a).

In the casing 11, in the plurality of heat exchangers 24 disposed on both sides of the centrifugal blower 18, for example, in the case of FIG. 8, at least one of the heat exchangers 24 may be arranged at an angle.

In this embodiment and each other example, although it embodied as the indoor unit of the wall-mounted air conditioner provided in the indoor wall surface W, it is not limited to a wall-hung type but may be embodied by a stationary air conditioner, and also an outdoor unit You may actualize to.

Claims (10)

When the centrifugal blower is disposed in a casing provided with an air inlet and a blower outlet, respectively, such that the axis of rotation of the centrifugal blower is along the depth direction of the casing, and the heat exchanger is viewed in a direction orthogonal to the axis of rotation of the centrifugal blower. And an air conditioner arranged so as to at least partially overlap with the centrifugal blower. The air conditioner according to claim 1, wherein a plurality of heat exchangers are arranged in the casing, and each heat exchanger is disposed at an angular interval of 180 degrees or 90 degrees when centering the rotation axis of the centrifugal blower. 3. The heat exchanger of claim 2, wherein the heat exchangers arranged at an angular interval of 180 degrees when the rotational axis of the centrifugal blower is centered have a plane symmetry with respect to a vertical plane or a horizontal plane including the rotational axis of the centrifugal blower. Deployed air conditioner. The air conditioner of Claim 2 in which the fin which comprises at least one heat exchanger of each said heat exchanger is laminated | stacked in the direction which inclines with respect to the rotation axis of the said centrifugal blower. The air blowing passage communicating with the blowout port is provided on the back side of the heat exchanger when viewed from the centrifugal blower in the casing, and the heat exchanger of the air blowout passage according to any one of claims 1 to 4. The air conditioner is provided on the inner surface facing the back surface of the guide surface which can smoothly guide the air blow-out flows blown out from the back surface of the heat exchanger toward the air outlet. The said centrifugal blower is arrange | positioned so that it may oppose the said suction inlet provided in the front surface of the said casing, and between this suction port and the said centrifugal blower, the shaft diameter may be extended toward the inside of the said casing. Air conditioner with air guide. The air conditioner according to any one of claims 1 to 6, wherein the suction port is provided on the front surface of the casing in the casing, and the blowout port is provided on the front surface of the casing. The said casing is provided in the state which made the back surface of the casing oppose the wall surface of the room, The said air inlet and the said air outlet are air provided in the front surface of the said casing, respectively. Conditioner. The air conditioner according to claim 8, wherein the inlet port and the outlet port are provided in front of the casing such that the outlet ports are respectively located on left and right sides of the inlet port. 10. The heat exchanger according to claim 9, wherein a plurality of suction ports are provided on a front surface of the casing, and a plurality of centrifugal blowers are disposed in the casing so as to face each of the suction ports, and at the left and right sides of the centrifugal blower in the casing, respectively. The air conditioner which is arrange | positioned, and is provided between the back surface of each heat exchanger, and each said blower outlet, and the air blow-out flow path which guides the air blow-out flow blown out from the back of each heat exchanger toward each said blower outlet.

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