CN108369027B

CN108369027B - Air conditioner

Info

Publication number: CN108369027B
Application number: CN201680070238.9A
Authority: CN
Inventors: 川野茂
Original assignee: Denso Corp
Current assignee: Denso Corp
Priority date: 2015-12-02
Filing date: 2016-11-28
Publication date: 2020-09-08
Anticipated expiration: 2036-11-28
Also published as: JP2017106706A; US20180347889A1; JP6742217B2; DE112016005514T5; CN108369027A

Abstract

An air conditioner (100) is provided with: an evaporator (130) that constitutes a refrigeration cycle and evaporates a refrigerant; a condenser (120) which constitutes a refrigeration cycle together with the evaporator (130) and condenses the refrigerant; a centrifugal fan (150) for sending air to the evaporator (130) and the condenser (120); and a housing (110) that houses the evaporator (130), the condenser (120), and the centrifugal fan (150), wherein the evaporator (130) and the condenser (120) are arranged so as to surround at least a part of the centrifugal fan (150) when viewed from the direction of the rotation axis of the centrifugal fan (150).

Description

Air conditioner

Cross reference to related applications

The present application claims benefit of priority based on the japanese patent application 2015-235322, filed 12/2/2015 and the japanese patent application 2016-210382, filed 2016, 10/27/2016, the entire contents of which are incorporated herein by reference.

Technical Field

The present invention relates to an air conditioner.

Background

One type of vapor compression type air conditioner is an integrated air conditioner in which a condenser, an evaporator, and a compressor are integrated into one body. An integrated air conditioner is installed in various places because it is not separated into an outdoor unit and an indoor unit.

For example, patent document 1 discloses a dehumidifier including an evaporator and a condenser. The dehumidifier described in patent document 1 includes: a first suction port for taking in air to the evaporator; and a second suction port for taking in air to the condenser. The dehumidifier is provided with: a first air blowing device for blowing air from the first suction port to the first blow-out port; and a second air blowing device that blows air from the second air inlet to the second air outlet. The first air supply device and the second air supply device are respectively provided with a single independent fan.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2011-

As described above, patent document 1 includes a first air blowing device for flowing air to the evaporator and a second air blowing device for flowing air to the condenser. In addition to the wall portion and duct for forming the air passage of each air blower, a fan needs to be provided for each air blower. Therefore, there are the following problems: it is difficult to avoid the upsizing of the apparatus, and it is difficult to flatten and miniaturize the apparatus.

Disclosure of Invention

The invention aims to provide a flat and small air conditioner which is provided with a built-in device for forming a refrigeration cycle.

The present invention is an air conditioner (100, 100A, 100B, 100C, 100D, 100E) comprising: evaporators (130, 130B, 130C, 130D) which constitute a refrigeration cycle and evaporate a refrigerant; a condenser (120, 120B, 120C, 120D) which constitutes a refrigeration cycle together with the evaporator and condenses the refrigerant; a centrifugal fan (150) that sends air to the evaporator and the condenser; and a casing (110, 110A, 110C, 110D, 110E) which houses the evaporator, the condenser and the centrifugal fan. The evaporator and the condenser are disposed so as to surround at least a part of the centrifugal fan when viewed from the rotational axis direction of the centrifugal fan.

According to the present invention, the evaporator and the condenser are disposed in the area where air is sent out from the centrifugal fan, and surround the centrifugal fan, so that air can be sucked in from one suction port by one centrifugal fan and sent to both the evaporator and the condenser, and the centrifugal fan and the suction port can be made common, so that the air conditioner can be downsized. Further, since it is not necessary to provide a wall or the like for separating the air passing through the evaporator and the air passing through the condenser, the air conditioner can be downsized. Further, since the evaporator and the condenser are arranged so as to surround the centrifugal fan when viewed from the direction of the rotation axis of the centrifugal fan, the casing can be flattened in the direction in which the centrifugal fan is sandwiched, and the air conditioner can be flattened, without the need to overlap the fan with the evaporator and the condenser in the thickness direction.

Drawings

Fig. 1 is a plan view showing an air conditioner according to a first embodiment of the present invention.

Fig. 2 is a sectional view showing a section II-II of fig. 1.

Fig. 3 is a sectional view showing the section III-III of fig. 1.

Fig. 4 is a sectional view showing the section IV-IV of fig. 2 and 3.

Fig. 5 is a plan view showing an air conditioner as a modification of the first embodiment.

Fig. 6 is a plan view showing an air conditioner according to a second embodiment of the present invention.

Fig. 7 is a plan view showing an air conditioner as a modification of the second embodiment.

Fig. 8 is a plan view showing an air conditioner according to a third embodiment of the present invention.

Fig. 9 is a plan view showing an air conditioner according to a fourth embodiment of the present invention.

Fig. 10 is a plan view showing an air conditioner as a modification of the first embodiment.

Detailed Description

The present embodiment will be described below with reference to the drawings. In the drawings, the same components are denoted by the same reference numerals as much as possible, and redundant description thereof is omitted for ease of understanding.

First, an air conditioner according to a first embodiment will be described with reference to fig. 1 to 4. In addition, FIG. 2 is a sectional view of a section II-II shown in FIG. 1. Fig. 3 is a cross-sectional view of the cross-section plane III-III shown in fig. 1. Fig. 4 is a cross-sectional view of a cross-sectional plane IV-IV shown in fig. 2 and 3.

The air conditioner 100 shown in fig. 1 includes: a housing 110, a condenser 120, an evaporator 130, a compressor 140, a centrifugal fan 150. The condenser 120, the evaporator 130, the compressor 140, and the centrifugal fan 150 are provided in a state of being integrated into the interior of the case 110.

The condenser 120 is disposed around the centrifugal fan 150. Specifically, condenser 120 is disposed so as to surround centrifugal fan 150 on one side of a straight line passing through center 151 of centrifugal fan 150. In other words, the condenser 120 is disposed in a part of a circular region around the centrifugal fan 150 with the center 151 of the centrifugal fan 150 as a base point. In other words, a part of a cross section perpendicular to the rotation axis passing through the center 151 is a cross section where the condenser 120 is disposed. The straight line passing through the center 151 of the centrifugal fan 150 is not limited to one straight line, and may be a plurality of straight lines. Details thereof will be described later.

The condenser 120 is a heat exchanger for condensing the refrigerant by radiating heat of the high-pressure and high-temperature refrigerant compressed by the compressor 140 to the outside. The size of the condenser 120 is equal to or larger than the size of the evaporator 130. In the air conditioner 100 shown in fig. 1, the size of the condenser 120 is substantially the same as the size of the evaporator 130.

The evaporator 130 is disposed around the centrifugal fan 150. Specifically, the evaporator 130 is disposed so as to surround the centrifugal fan 150 on one side of a straight line passing through the center 151 of the centrifugal fan 150 and on the opposite side of the condenser 120 as viewed from the centrifugal fan 150. In other words, the evaporator 130 is disposed in a part of a circular region around the centrifugal fan 150 with the center 151 of the centrifugal fan 150 as a base point. In other words, a part of a cross section perpendicular to the rotation axis passing through the center 151 is a cross section where the evaporator 130 is disposed. Therefore, a cross section orthogonal to the rotation axis is divided into a cross section in which the condenser 120 is disposed and a cross section in which the evaporator 130 is disposed.

The evaporator 130 is a heat exchanger that absorbs heat from the outside and evaporates the refrigerant supplied from the condenser 120 via an expansion valve.

As shown in fig. 1, the condenser 120 and the evaporator 130 are disposed in a circular region around the centrifugal fan 150 so as to surround substantially the entire centrifugal fan 150. The condenser 120 and the evaporator 130 define the area of a circular region around the centrifugal fan 150 with the center 151 of the centrifugal fan 150 as a base point.

The compressor 140 is disposed outside the region surrounded by the condenser 120 and the evaporator 130. The compressor 140 sucks and compresses the refrigerant evaporated in the evaporator 130 at a low pressure and a low temperature to convert the refrigerant into a high-pressure and high-temperature refrigerant.

The centrifugal fan 150 is disposed in the center of the casing 110 and in a region surrounded by the condenser 120 and the evaporator 130. In the air conditioner 100 shown in fig. 1, the area surrounded by the condenser 120 and the evaporator 130 has a substantially rectangular shape as viewed from the direction in which the centrifugal fan 150 sucks air. The direction in which the centrifugal fan 150 sucks air is the direction of the arrow a1 shown in fig. 2 and the arrow a11 shown in fig. 3.

As indicated by arrow a1 shown in fig. 2 and arrow a11 shown in fig. 3, centrifugal fan 150 sucks air from below casing 110. Then, as shown by arrows a2 and A3 shown in fig. 1 and 2, the centrifugal fan 150 sends air to the condenser 120. Further, the centrifugal fan 150 sends air to the evaporator 130 as indicated by arrows a12 and a13 shown in fig. 1 and 3.

As shown in fig. 2, warm air ventilation passage 115 is provided in casing 110 at an upper portion of a region where condenser 120 is provided. As shown by arrows a4, a5, a6, and a7 shown in fig. 2 and 4, the air sent from centrifugal fan 150 to condenser 120 is heated by condenser 120, passes through warm air ventilation passage 115, and is guided to the outside of air conditioner 100 through warm air outlet 111 provided in casing 110.

As shown in fig. 3, a cool air passage 116 is provided in the housing 110 at an upper portion of the region where the evaporator 130 is provided. As shown by arrows a14, a15, a16, and a17 in fig. 3 and 4, the air sent from the centrifugal fan 150 to the evaporator 130 is cooled by the evaporator 130, passes through the cold air passage 116, and is guided to the outside of the air conditioner 100 through the cold air outlet 112 provided in the casing 110.

According to the air conditioner 100 of the present embodiment, the condenser 120, the evaporator 130, and the centrifugal fan 150 are provided in a state of being integrated in the casing 110, and the centrifugal fan 150 is disposed in a region surrounded by the condenser 120 and the evaporator 130. Therefore, the condenser 120 and the evaporator 130, which are two heat exchangers, can be arranged compactly, and the warm air generated by the condenser 120 and the cool air generated by the evaporator 130 can be sent to the outside of the air conditioner 100 with a better space efficiency. Thus, the air conditioner 100 of the present embodiment can be realized in a flat and small size.

As shown in fig. 1, the condenser 120 includes a guide portion 121 provided at a boundary portion between the condenser 120 and the evaporator 130. The guide portion 121 corresponds to a suppression portion of the present invention. The guide part 121 has a first portion 121a and a second portion 121 b. The first portion 121a extends in a direction along a surface 125 of the condenser 120 facing the centrifugal fan 150. The second portion 121b is a portion protruding such that the first portion 121a is away from the surface 125 of the condenser 120. In addition, as shown in fig. 1, when a plurality of condensers 120 are provided, guide portion 121 may be provided at a boundary portion between the plurality of condensers 120.

For example, a part of the air sent from the centrifugal fan to the condenser sometimes flows along the surface of the condenser without passing directly through the inside of the condenser as shown by an arrow a3 in fig. 1. The air flowing along the surface of the condenser and the air heated by the condenser flows toward the evaporator, and is mixed with the air cooled by the evaporator. This may degrade the performance of the air conditioner.

In contrast, the condenser 120 of the present embodiment has a guide portion 121 extending in a direction along the surface 125. The guide portion 121 can guide the air flowing along the surface 125 of the condenser 120 toward the inside of the condenser 120. More specifically, the centrifugal fan 150 rotates in the direction of the arrow around the center 151 of fig. 1, and sends air toward the condenser 120, and the air flows along the surface 125 of the condenser 120. Thus, the guide portion 121 can suppress warm air, which is air flowing along the surface 125 of the condenser 120 and heated by the condenser 120, from flowing to the evaporator 130. Therefore, the performance degradation of the air conditioner 100 can be suppressed. The form of the guide portion 121 is not limited to the form shown in fig. 1. In the air conditioner 100F as a modification shown in fig. 10, a guide portion 121F as a shorter projection is provided. As long as the air flow suppressing effect is obtained as described above, various modes can be adopted as the embodiments of the suppressing portion.

As shown in fig. 1, the evaporator 130 has a guide portion 131 provided at a boundary portion between the condenser 120 and the evaporator 130. The guide portion 131 has a first portion 131a and a second portion 131 b. The first portion 131a extends in a direction along the surface 135 of the evaporator 130 facing the centrifugal fan 150. The second portion 131b is a portion protruding such that the first portion 131a is away from the surface 135 of the evaporator 130. In addition, as shown in fig. 1, when a plurality of evaporators 130 are provided, the guide portion 131 may be provided at a boundary portion between the plurality of evaporators 130.

For example, a part of the air sent from the centrifugal fan to the evaporator sometimes flows along the surface of the evaporator without passing directly through the inside of the evaporator as shown by an arrow a12 in fig. 1, for example. The air flowing along the surface of the evaporator and the air cooled by the evaporator flows toward the condenser and is mixed with the air heated by the condenser. This may degrade the performance of the air conditioner.

In contrast, the evaporator 130 of the present embodiment includes a guide portion 131 extending in a direction along the surface 135. The guide portion 131 can guide the air flowing along the surface 135 of the evaporator 130 toward the inside of the evaporator 130. More specifically, the centrifugal fan 150 rotates in the direction of the arrow around the center 151 of fig. 1, thereby sending air toward the evaporator 130, and the air flows along the surface 135 of the evaporator 130. Thus, the guide 131 can suppress the flow of the cool air, which is the air flowing along the surface 135 of the evaporator 130 and cooled by the evaporator 130, toward the condenser 120. The form of the guide portion 131 is not limited to the form shown in fig. 1. In the air conditioner 100F as a modification shown in fig. 10, a guide portion 131F is provided as a shorter projection.

Next, an air conditioner according to a modification of the first embodiment will be described with reference to fig. 5. In the air conditioner 100, the direction of the warm air blown out from the warm air outlet 111, i.e., the direction of the arrow a7, is substantially the same as the direction of the cool air blown out from the cool air outlet 112, i.e., the direction of the arrow a 17. In contrast, in the air conditioner 100A shown in fig. 5, the direction of the warm air blown out from the warm air outlet 111A, i.e., the direction of the arrow A8, is opposite to the direction of the cool air blown out from the cool air outlet 112A, i.e., the direction of the arrow a 18. The other structure is the same as that of the air conditioner 100 described above with reference to fig. 1.

As shown by arrows a2, A3, and A8 shown in fig. 5, the air sent from centrifugal fan 150 to condenser 120 is heated by condenser 120, passes through warm air outlet 111A provided in casing 110, and is blown out in the direction opposite to the air cooled by evaporator 130.

On the other hand, as shown by arrows a12, a13, and a18 in fig. 5, the air sent from the centrifugal fan 150 to the evaporator 130 is cooled by the evaporator 130, passes through the cold air outlet 112A provided in the casing 110, and is blown out in the direction opposite to the air heated by the condenser 120.

According to the air conditioner 100A shown in fig. 5, the mixing of the warm air and the cool air can be more reliably suppressed.

Next, an air conditioner according to a second embodiment will be described with reference to fig. 6. In the air conditioner 100, the area surrounded by the condenser 120 and the evaporator 130 has a substantially rectangular shape as viewed from the direction in which the centrifugal fan 150 sucks air. In contrast, in the air conditioner 100B shown in fig. 6, the area surrounded by the condenser 120B and the evaporator 130B has a substantially circular shape when viewed from the direction in which the centrifugal fan 150 sucks air, that is, the direction of the rotation axis. The gap between the condenser 120B and the evaporator 130B is larger than that of the air conditioner 100, and the evaporator 130B and the condenser 120B are disposed so as to surround a part of the centrifugal fan 150 when viewed from the rotational axis direction of the centrifugal fan 150. The other structure is the same as that of the air conditioner 100 described above with reference to fig. 1.

The flow of air sent from centrifugal fan 150 to condenser 120B is the same as the flow of air in air conditioner 100 described above. That is, as shown by arrows a2, A3, a9, and a7 in fig. 6, the air sent from centrifugal fan 150 to condenser 120B is heated by condenser 120B, passes through warm air ventilation passage 115, and is guided to the outside of air conditioner 100B through warm air outlet 111 provided in casing 110.

The flow of air sent from centrifugal fan 150 to evaporator 130B is the same as the flow of air in air conditioner 100 described above. That is, as shown by arrows a12, a13, a19, and a17 in fig. 6, the air sent from the centrifugal fan 150 to the evaporator 130B is cooled by the evaporator 130B, passes through the cold air passage 116, and is guided to the outside of the air conditioner 100B through the cold air outlet 112 provided in the casing 110.

According to the air conditioner 100B shown in fig. 6, since the area surrounded by the condenser 120B and the evaporator 130B has a substantially circular shape and is similar to the outer shape of the centrifugal fan 150, the air sent from the centrifugal fan 150 flows along the surface of the condenser 120B and the surface of the evaporator 130B. This allows the air sent from the centrifugal fan 150 to be more reliably guided into the condenser 120B and the evaporator 130B without disturbing the flow of the air.

Next, an air conditioner according to a modification of the second embodiment will be described with reference to fig. 7. In the air conditioner 100C shown in fig. 7, the condenser 120C is disposed so as to surround the centrifugal fan 150 on one side of two straight lines L1, L2 passing through the center 151 of the centrifugal fan 150. In this case, the condenser 120C is also disposed in a part of the circular region around the centrifugal fan 150 with the center 151 of the centrifugal fan 150 as a base point.

Further, the evaporator 130C is disposed so as to surround the centrifugal fan 150 on one side of two straight lines L1, L2 passing through the center 151 of the centrifugal fan 150 and on the side opposite to the condenser 120C when viewed from the centrifugal fan 150. In this case, in other words, the evaporator 130C is also disposed in a part of the circular region around the centrifugal fan 150 with the center 151 of the centrifugal fan 150 as a base point.

As shown in fig. 7, the size of the condenser 120C is larger than that of the evaporator 130C. The area surrounded by the condenser 120C and the evaporator 130C has a substantially circular shape as viewed from the direction in which the centrifugal fan 150 sucks air.

The direction of the warm air blown out from the warm air outlet 111C is opposite to the direction of the cool air blown out from the cool air outlet 112C. That is, as shown by arrows a2, A3, a9, and A8 in fig. 7, the air sent from centrifugal fan 150 to condenser 120C is heated by condenser 120C, and is blown out in the opposite direction to the air cooled by evaporator 130C through warm air outlet 111C provided in casing 110C.

On the other hand, as shown by arrows a12, a13, a19, and a18 in fig. 7, the air sent from the centrifugal fan 150 to the evaporator 130C is cooled by the evaporator 130C, passes through the cool air outlet 112C provided in the casing 110C, and is blown out in the direction opposite to the air heated by the condenser 120C.

According to the air conditioner 100C shown in fig. 7, the air sent from the centrifugal fan 150 can be more reliably guided to the inside of the condenser 120C and the evaporator 130C, and the mixing of the warm air and the cool air can be more reliably suppressed.

Next, an air conditioner according to a third embodiment will be described with reference to fig. 8. In the air conditioner 100D shown in fig. 8, the region surrounded by the condenser 120D and the evaporator 130D has a substantially hexagonal shape when viewed from the direction in which the centrifugal fan 150 sucks air.

The direction of the warm air blown out from the warm air outlet 111D is opposite to the direction of the cool air blown out from the cool air outlet 112D. That is, as shown by arrows a2, A3, a9, and A8 in fig. 8, the air sent from centrifugal fan 150 to condenser 120D is heated by condenser 120D, passes through warm air outlet 111D provided in casing 110D, and is blown out in the direction opposite to the air cooled by evaporator 130D.

On the other hand, as shown by arrows a12, a13, a19, and a18 in fig. 8, the air sent from the centrifugal fan 150 to the evaporator 130D is cooled by the evaporator 130D, passes through the cool air outlet 112D provided in the casing 110D, and is blown out in the direction opposite to the air heated by the condenser 120D.

Next, an air conditioner according to a fourth embodiment will be described with reference to fig. 9. In the air conditioner 100E shown in fig. 9, the condenser 120E and the evaporator 130E are disposed at positions opposite to each other across the centrifugal fan 150, as viewed from the direction in which the centrifugal fan 150 sucks air. The condenser 120E and the evaporator 130E are disposed to face each other with the centrifugal fan 150 interposed therebetween, but may surround a part of the centrifugal fan 150 at positions shifted from each other. The condenser 120E and the evaporator 130E are disposed so as to surround a part of the centrifugal fan 150 when viewed from the rotational axis direction of the centrifugal fan 150.

The air sent from centrifugal fan 150 to condenser 120E is heated by condenser 120E and blown out through warm air outlet 111E provided in casing 110E.

The air sent from the centrifugal fan 150 to the evaporator 130E is cooled by the evaporator 130E and blown out through the cool air outlet 112E provided in the casing 110E.

The housing 110E is provided with a guide portion 121E and a guide portion 131E. Guide 121E and guide 131E are provided so as to face centrifugal fan 150 in a region not surrounded by condenser 120E or evaporator 130E. The

guide portions

121E and 131E have the following effects: the air blown out from the centrifugal fan 150 is distributed to the condenser 120E and the evaporator 130E.

As described above, the

air conditioners

100, 100A, 100B, 100C, 100D, and 100E of the present embodiment include:

evaporators

130, 130B, 130C, 130D, and 130E that constitute a refrigeration cycle and evaporate a refrigerant;

condensers

120, 120B, 120C, 120D, and 120E that constitute a refrigeration cycle together with the

evaporators

130, 130B, 130C, 130D, and 130E and condense refrigerant; a centrifugal fan 150 that sends air to the

evaporators

130, 130B, 130C, 130D, and 130E and the

condensers

120, 120B, 120C, 120D, and 120E; and a

housing

110, 110A, 110C, 110D, 110E housing the

evaporator

130, 130B, 130C, 130D, 130E, the

condenser

120, 120B, 120C, 120D, 120E, and the centrifugal fan 150. In the present embodiment, the

evaporators

130, 130B, 130C, 130D, and 130E and the

condensers

120, 120B, 120C, 120D, and 120E are arranged so as to surround at least a part of the centrifugal fan 150 when viewed from the rotational axis direction of the centrifugal fan 150.

The

evaporators

130, 130B, 130C, 130D, 130E and the

condensers

120, 120B, 120C, 120D, 120E are disposed in the area where the air is sent out from the centrifugal fan 150, and surround the centrifugal fan 150, so that the air can be sent to both the

evaporators

130, 130B, 130C, 130D, 130E and the

condensers

120, 120B, 120C, 120D, 120E by one centrifugal fan 150, and the

air conditioners

100, 100A, 100B, 100C, 100D, 100E can be downsized. Further, since the

evaporators

130, 130B, 130C, 130D, and 130E and the

condensers

120, 120B, 120C, 120D, and 120E are arranged so as to surround at least a part of the centrifugal fan 150 when viewed from the rotational axis direction of the centrifugal fan 150, the

casings

110, 110A, 110C, 110D, and 110E can be flattened in the direction in which the centrifugal fan 150 is sandwiched, and the

air conditioners

100, 100A, 100B, 100C, 100D, and 100E can be flattened.

The size of the

condensers

120, 120B, 120C, 120D is equal to or larger than the size of the

evaporators

130, 130B, 130C, 130D.

As shown in fig. 6 and 7, the

evaporators

130B, 130C and the

condensers

120B, 120C are disposed in a curved manner around the centrifugal fan 150, and are divided into a projection area in the rotational axis direction of the evaporators 130B, 130C and a projection area in the rotational axis direction of the

condensers

120B, 120C, with the center 151 of the centrifugal fan 150 as a base point. In other words, a cross section orthogonal to the rotation axis passing through the center 151 of the centrifugal fan 150 is divided into a cross section portion where the

evaporators

130B, 130C and a cross section portion where the

condensers

120B, 120C are arranged.

As shown in fig. 1, a guide portion 121 is provided as a suppression portion that suppresses the air sent from the centrifugal fan 150 and coming into contact with the condenser 120 from flowing toward the evaporator 130. The guide portion 121 is an example of the suppression portion of the present invention, and the flow of air can be suppressed by a step provided around the tank at the end of the

condensers

120B and 120C as shown in fig. 6 and 7, for example. Further, as in the guide section 121E shown in fig. 9, the air distribution device can be configured as a portion having a function of distributing air and can also have a function as a suppression section. The function of the suppressing portion can also be realized by the projection structure as in the guide portion 121F shown in fig. 10.

The guide portion 121 is disposed at an end portion of the condenser 120 adjacent to the evaporator 130. The guide portion 121 is provided: the second portion 121b as one end is connected to an end of the condenser 120 adjacent to the evaporator 130, and the first portion 121a as the other end faces in a direction away from the evaporator 130.

The present embodiment has been described above with reference to specific examples. However, the present invention is not limited to these specific examples. The configuration of these specific examples is modified as appropriate by design by those skilled in the art, and the configuration is also included in the scope of the present invention as long as the characteristics of the present invention are provided. The elements, their arrangement, conditions, shapes, and the like included in the above-described specific examples are not limited to those exemplified, and can be appropriately modified. Each element included in each specific example described above can be appropriately combined without technical contradiction.

Claims

1. An air conditioner is characterized by comprising:

evaporators (130, 130B, 130C, 130D, 130E) which constitute a refrigeration cycle and evaporate a refrigerant;

a condenser (120, 120B, 120C, 120D, 120E) that constitutes a refrigeration cycle together with the evaporator and condenses the refrigerant;

a centrifugal fan (150) that sends air to the evaporator and the condenser; and

a casing (110, 110A, 110C, 110D, 110E) that houses the evaporator, the condenser, and the centrifugal fan,

the evaporator and the condenser are arranged so as to surround at least a part of the centrifugal fan when viewed from a rotational axis direction of the centrifugal fan,

a cross section of the centrifugal fan orthogonal to the rotation axis is divided into a cross section portion where the evaporator is disposed and a cross section portion where the condenser is disposed, so that a part of air sent from one of the centrifugal fans passes directly through an inside of the evaporator and an inside of the condenser.

2. The air conditioner according to claim 1,

the size of the condenser is larger than or equal to that of the evaporator.

3. An air conditioner according to claim 1 or 2,

the evaporators (130B, 130C) and the condensers (120B, 120C) are arranged in a curved manner around the centrifugal fan.

4. An air conditioner according to claim 3,

suppression units (121, 121E, 121F) are provided that suppress the flow of air that is sent from the centrifugal fan and that comes into contact with the condenser to the evaporator side.

5. The air conditioner according to claim 4,

the suppression portion is provided at an end portion of the condenser adjacent to the evaporator.

6. The air conditioner according to claim 5,

the suppression portion is provided with: one end is connected to the end portion and the other end faces in a direction away from the evaporator.