WO2019043980A1 - Indoor unit for air conditioner - Google Patents

Abstract

The invention relates to an indoor unit for an air conditioner that can be installed in a narrow space above a window and can satisfy the needs of energy conservation. Two heat exchangers (14) are arranged side by side in the longitudinal direction with a gap therebetween, and a connecting portion (25) for connecting the refrigerant pipes of the two heat exchangers (14) and a pipe refrigerant communication device (24) from the outside is arranged between the two heat exchangers (14). Wall portions (32) protruding in the direction of evacuation of the air flow are arranged on the connection portion (25) side of two discharge openings (17) corresponding to the two heat exchangers (14), and guide surfaces (32a), inclined to move toward each other in the air flow evacuation direction, are provided on each of the wall portions (32).

Description

Indoor unit of air conditioner

The present invention relates to an indoor unit of an air conditioner.

The indoor unit of the air conditioner rotates the blower fan to blow the air sucked from the suction port to the heat exchanger and blow it out from the blowout port. A refrigerant pipe is connected to the heat exchanger, and the refrigerant pipe is connected to the refrigerant communication pipe. The other end of the refrigerant communication pipe is connected to the outdoor unit of the air conditioner. Thus, a refrigerant circuit for circulating the refrigerant is configured between the indoor unit and the outdoor unit.

Further, Patent Document 1 discloses a configuration in which two heat exchangers are disposed along two long sides of a casing in an indoor unit of a ceiling-mounted air conditioner.

Japanese Patent No. 3998030 Specification

By the way, in recent years, there has been a strong demand for a larger window, and the space on the window is becoming smaller. In addition, as the installation place of the indoor unit, not the side of the window but the upper side of the window is desired, and the development of an indoor unit having a smaller size in the height direction (shorter direction) than in the past is urgently needed.

However, if only the dimension in the height direction is reduced without changing the dimension in the left-right direction (longitudinal direction), the heat exchanger becomes smaller and the area contributing to heat exchange decreases. As a result, it becomes impossible to be compatible with the very strong demand for energy saving.

One aspect of the present invention has been made in view of the above problems, and it is an object of the present invention to provide an indoor unit of an air conditioner that can be installed in a narrow space on a window and can also meet the demand for energy saving. There is.

In order to solve the above-mentioned subject, an indoor unit of an air conditioner concerning one mode of the present invention is two heat exchangers arranged side by side in a longitudinal direction at intervals, and the two heat exchangers And two air outlets respectively provided correspondingly, and connecting the refrigerant pipes of the two heat exchangers and the refrigerant communication pipe from the outside between the two heat exchangers. And a junction promoting structure for directing the junction position of the two air streams blown out from each of the two outlets closer to the two outlets.

According to one aspect of the present invention, it is possible to provide an indoor unit of an air conditioner that can be installed in a narrow space on a window and can also meet the demand for energy saving.

It is a perspective view which shows the external appearance of the indoor unit of the air conditioner concerning embodiment of this invention. It is a longitudinal cross-sectional view of the said indoor unit. It is a front view of the above-mentioned indoor unit. FIG. 4 is a cross-sectional view taken along line AA of FIG. 3; It is a front view which shows schematic structure of the connection part which connects the refrigerant | coolant pipe | tube of two heat exchangers in the said indoor unit, and the refrigerant | coolant communication pipe from the outside. It is a perspective view of the above-mentioned indoor unit. It is the principal part enlarged view which shows the structure between two blowing outlets in the said indoor unit. It is a figure explaining the flow of air, and the relation of generation of a vortice. It is an image figure which shows the difference in the flow of the airflow by the presence or absence of the guide surface in the said indoor unit, (a) shows a case where there is a guide surface and (b) does not have a guide surface. It is a top view which shows the positional relationship of two heat exchangers in the indoor unit of the air conditioner concerning the other form of implementation of this invention.

First Embodiment
Embodiments of the present invention will be described below based on the drawings.

(Structure of indoor unit 1)
FIG. 1 is a perspective view showing an appearance of an indoor unit 1 of an air conditioner according to an embodiment of the present invention. FIG. 2 is a longitudinal sectional view of the indoor unit 1. FIG. 3 is a front view of the indoor unit 1. FIG. 4 is a cross-sectional view taken along line AA of FIG. In addition, in FIG. 3, FIG. 4, the state which removed the baffle plate 3 is shown.

As shown in FIG. 1, the indoor unit 1 of the air conditioner is provided with a baffle plate 3 on the front surface of the indoor unit main body 2. The indoor unit 1 has a relationship of W ≧ 4 h, where h is a dimension in the height direction (short direction) when viewed from the front, and W is a dimension in the left-right direction (longitudinal direction).

As shown in FIG. 2, the indoor unit body 2 has a first suction port 11 at the top, a second suction port 12 at the bottom, and a blower fan 13 and a heat exchanger 14 inside. It has an outlet 17 at the front.

As shown in FIG. 3 and FIG. 4, in the indoor unit 1, the heat exchanger 14 has an elongated shape (longitudinal shape, horizontally elongated shape) in the horizontal direction, and has a space between them (longitudinal direction ) Are also arranged side by side). According to the two heat exchangers 14, the first suction port 11, the second suction port 12, and the blowoff port 17 are also formed two by two in the left-right direction.

As shown in FIG. 2, the first filter 15 is disposed in the first suction port 11, and the second filter 16 is disposed in the second suction port 12. The first filter 15 is, for example, a filter having a function equivalent to a pre-filter, and has lower performance than the second filter 16. The second filter 16 is, for example, a HEPA filter (High Efficiency Particulate Air Filter), and has higher performance than the first filter 15.

In the indoor unit 1, the air sucked from the first suction port 11 is blown out from the blowout port 17 through the first filter 15, the blower fan 13 and the heat exchanger 14. Further, the air sucked from the second suction port 12 is blown out from the blow-off port 17 through the second filter 16, the blower fan 13 and the heat exchanger 14.

The first suction port 11 is provided with an open / close lid 18 for opening and closing the first suction port 11. The open / close lid 18 is opened when operating in the air conditioning mode. Further, the open / close lid 18 is closed when the air conditioner is in the stopped state and when the air conditioner is operated in the air cleaning mode. In addition, although the one opening / closing lid 18 is provided with respect to the two 1st suction ports 11 here, according to the two 1st suction ports 11, two may be provided.

The air conditioning mode is an operation mode of the air conditioner in which the air conditioning function is given priority over the air cleaning function. The air purification mode is, conversely, an operation mode of the air conditioner in which the air purification function is prioritized over the air conditioning function. In the air conditioning mode, air is mainly sucked from the first suction port 11, passes through the first filter 15, and is blown to the heat exchanger 14 by the blower fan 13 and blown out from the blowout port 17. On the other hand, in the air cleaning mode, air is sucked from only the second suction port 12, passes through the second filter 16, and is blown to the heat exchanger 14 by the blower fan 13 and blown out from the blowout port 17.

In the cooling operation, the air guide plate 3 is disposed so that the air (air flow) blown out from the outlet 17 is opened obliquely upward as shown in FIG. 1 and FIG. Although not preferred, the air guide plate 3 is disposed obliquely downward.

As shown in FIGS. 3 and 4, the heat exchanger 14 has a laterally long shape as described above, and as shown in FIG. 2, the two heat exchange parts are vertically connected and connected. The part is a shape (a letter shape) projecting forward.

Below the heat exchanger 14, a drain pan 34 for receiving drain water generated in the heat exchanger 14 is disposed. The drain pan 34 is formed in the shape of a long dish in the left-right direction (longitudinal direction). Two drain pans 34 are also provided corresponding to the two heat exchangers 14. The two drain pans 34 are arranged in an inclined manner so that the central portion in the longitudinal direction of the indoor unit 1 is low.

The blower fan 13 is, for example, a sirocco fan or a turbo fan, and is disposed on the back side of the heat exchanger 14. Here, two heat exchangers 14 are provided. The number of blower fans 13 for one heat exchanger 14 is not limited to two, and may be one or three or more.

(Use of space between two heat exchangers 14)
As shown in FIG. 3 and FIG. 4, the two heat exchangers 14 are spaced apart. And, in the space between the two heat exchangers 14, a fan motor 26 for driving the blower fan 13 and a connection portion 25 of the refrigerant pipe are provided. Although two fan motors 26 are arranged in FIG. 3, one fan motor 26 may drive four blower fans 13.

As shown in FIG. 5, the connection portion 25 connects the refrigerant pipes of the two heat exchangers 14 and the refrigerant communication pipe 24 from the outside. FIG. 5 is a front view showing a schematic configuration of a connection portion 25 connecting the refrigerant pipes of the two heat exchangers 14 and the refrigerant communication pipe 24 from the outside. Two branch pipes 23 are provided in the connection portion 25, and the two branch pipes 23 are connected to forward and return refrigerant communication pipes 24 extending from an outdoor unit (not shown). The branch side of the branch pipe 23 is connected to the refrigerant pipe of the heat exchanger 14, and the base end side of the branch pipe 23 is connected to the refrigerant communication pipe 24.

Furthermore, in the space between the two heat exchangers 14, drain water received by the left and right drain pans 34 can be collected, and a drain discharge pipe 35 for discharging the drain water to the outside of the machine is provided. Is connected.

(Structure between two outlets 17)
FIG. 6 is a perspective view of the indoor unit 1. In FIG. 6, the state which removed the baffle plate 3 is shown. FIG. 7 is an enlarged view of an essential part showing a structure between the two outlets 17 in the indoor unit 1. As shown to FIG. 6, FIG. 7, the wall part 32 which protrudes in the blowing direction of air flow is provided in the connection part 25 side of each two blowing outlets 17. As shown in FIG. And each wall part 32 is provided with the guide surface (joining promotion structure) 32a which inclined so that it might mutually approach as it goes to the blowing direction of airflow. In FIGS. 6 and 7, the guide surface 32a is represented by a thick line for the sake of clarity. The inclined guide surface 32 a is to direct the joining position of the two air streams blown out from the two outlets 17 closer to the two outlets 17.

Here, as a more preferable configuration, the guide surface 32 a is more inclined than the case (boundary portion) with the surface on the leeward side of the two heat exchangers 14. Furthermore, as a more preferable configuration, the distance L between the intersection point P of the extension lines (broken lines in FIG. 7) of each of the guide surfaces 32a and the downwind side of the two heat exchangers 14 is 60 mm or less There is.

(Advantages of indoor unit 1)
In the indoor unit 1 of the air conditioner according to the present embodiment, two heat exchangers 14 are arranged side by side at intervals in the longitudinal direction. Thereby, even if the dimension in the height direction (short side direction) of the indoor unit 1 is reduced, the area contributing to heat exchange is secured by increasing the dimension in the left and right direction (longitudinal direction), and energy saving performance is improved. can do. Moreover, since the size of the heat exchanger 14 does not have to be increased, the existing production apparatus can be used.

Further, in the indoor unit 1, since the connection portion 25 connecting the refrigerant pipes of the two heat exchangers 14 and the refrigerant communication pipe 24 from the outside is provided between the two heat exchangers 14. The refrigerant can be uniformly supplied to each of the two heat exchangers 14, and the flow path of the refrigerant can be shortened.

By the way, when the two heat exchangers 14 are arranged in this way, the front surface (front surface) located between the two outlets 17 (between the two heat exchangers 14 provided with the connection portion 25) Because the air flow does not pass through the side, air swirls are generated and air is trapped.

FIG. 8 is a view for explaining the relationship between the flow of air and the generation of a vortex. As shown in FIG. 8, a fluid (air flow) is the fluid diameter D ₁ which inflow from thin tube with a diameter D ₁ to the thicker diameter tube D _2, after entering the thick tube gradually spread in diameter the flow of D _2. At that time, on the fluid inlet side of the thick tube, there is a portion where the fluid does not flow, a vortex of the fluid is generated in this portion, and the fluid stagnates.

Air vortices are generated on the front side (front side) located between the two outlets 17, and when the air stagnates, a temperature difference is generated between the portion through which the air flow passes, and the housing or front side of the indoor unit 1 There is a possibility that dew may be attached to components such as the back surface of the air guide plate 3 disposed in the above.

Therefore, the indoor unit 1 has a confluence promoting structure that causes the joining position of the two air streams blown out from the two outlets 17 to be closer to the two outlets 17. In the indoor unit 1, a guide surface (guide structure) 32a inclined so as to approach each other in the blowout direction of the air flow is provided on the wall 32 on the connection 25 side of each of the two blowoffs 17 as a merging promoting structure. ing. By providing such a guide surface 32 a, it is possible to reduce the space in which the air flow that generates vortices does not pass, which joins near the two outlets 17.

FIG. 9 is an image diagram showing the difference in air flow depending on the presence or absence of the guide surface 32a in the indoor unit 1. FIG. 9A shows the case where the guide surface 32a is present, and FIG. 9B shows the case where the guide surface 32a is absent. In the figure, reference numeral 30 denotes a housing of the indoor unit body 2. As shown in FIG. 9A, when there is a guide surface 32a, the air flow blown out from the two outlets 17 merges at a position near the two outlets 17 by traveling along the guide surface 32a. . Thereby, the generation of a vortex can be suppressed.

On the other hand, as shown in (b) of FIG. 9, when there is no guide surface 32a, the air flow blown out from the two outlets 17 will join at a position separated from the outlet 17, and the wall 32 front An air vortex is generated on the side.

In addition, also on the opposite side to the connection part 25 side of each of the two outlets 17, when there is a wall projecting in the outlet direction, vortices are generated in a portion where the air flow does not flow. Therefore, as shown to (a) of FIG. 9, it is preferable to form the guide surface 32a also in the wall part on the opposite side to the connection part 25 side of the two blowing outlets 17 each.

Moreover, in the indoor unit 1, as a more preferable structure, the guide surface 32a is made to incline rather than the surface (boundary part) with the surface of the leeward side in the two heat exchangers 14. As shown in FIG. As a result, the air flow immediately after passing through the heat exchanger 14 can be guided by the guide surface 32a, and the generation of a vortex can be effectively suppressed to make it difficult for dew to adhere.

Furthermore, in the indoor unit 1, as a more preferable configuration, the distance L between the intersection P of the extension lines (broken lines in FIG. 7) of each of the guide surfaces 32a and the leeward surface of the two heat exchangers 14 is 60 mm or less It is provided to be When the distance exceeds 60 mm, it is difficult to effectively suppress the generation of a vortex, but by setting the distance to 60 mm or less, the generation of a vortex can be effectively suppressed to make it difficult to attach dew.

Further, in the indoor unit 1, two drain pans 34 are provided corresponding to the two heat exchangers 14, and drain drainage pipes are connected between the two heat exchangers 14. As a result, even if the dimension in the latitudinal direction of the indoor unit 1 is reduced and the dimension in the longitudinal direction is increased, the inclination of each of the two drain pans 34 can be secured, and drain water can be discharged without any problem. .

Second Embodiment
Another embodiment of the present invention will be described below. For convenience of explanation, the same reference numerals are appended to members having the same functions as the members described in the first embodiment, and the description thereof is omitted.

In the first embodiment, as the merging promoting structure, the guide surfaces are inclined so as to approach each other in the blowout direction of the air flow to the wall portions 32 projecting in the blowout direction on the connection portion 25 side of each of the two blowoff ports 17 Guide structure) 32a was provided.

On the other hand, in the indoor unit 1A according to the present embodiment, as shown in FIG. 10, two heat exchangers 14 are arranged in an inclined manner in the direction to face each other as a merging promoting structure. FIG. 10 is a plan view showing the positional relationship between the two heat exchangers 14 in the indoor unit 1 of the air conditioner according to another embodiment of the present invention.

As shown in FIG. 10, two heat exchangers 14 are arranged in an inclined manner in the direction in which they face each other. As a result, the air flow blown to the two heat exchangers 14 and blown out from each of the two outlets 17 is naturally mixed near the two outlets 17 even without the guide surface 32 a. As a result, as with the guide surface 32a, it is possible to suppress the generation of vortices and make it difficult for dew to adhere.

Here, as a more preferable configuration, the inclination angle θ of the two heat exchangers 14 is less than 5 ° with respect to the mounting surface of the indoor unit 1. Since the angle θ is less than 5 °, generation of vortices can be suppressed and dew can be made less likely to occur without narrowing the blowable area along the longitudinal direction of the indoor unit 1 in vain.

In FIG. 10, the four blower fans 13 are arranged in parallel with the mounting surface of the indoor unit 1, but the four blower fans 13 are arranged in an inclined manner in accordance with the inclination of the corresponding heat exchanger 14. It may be configured to In that case, since the air blowing direction of the air blowing fan 13 and the direction in which the air of the corresponding heat exchanger 14 passes through are aligned, the loss reduced when the air sent out from the air blowing fan 13 passes through the heat exchanger 14 It can be made smaller.

Third Embodiment
Another embodiment of the present invention will be described below. For convenience of explanation, the same reference numerals are appended to members having the same functions as the members described in the first embodiment, and the description thereof is omitted.

Although the indoor unit in the third embodiment is not shown, both of the guide surface 32a in the first embodiment and the inclined arrangement of the two heat exchangers 14 in the second embodiment are used as a confluence promoting structure. Is equipped. As a result, it is possible to more effectively suppress the generation of the vortex and make it difficult for the dew to adhere.

In the first to third embodiments, the indoor unit installed on the side wall is exemplified. However, the present invention can be applied to an indoor unit installed on the ceiling.

[Summary]
The indoor unit 1 of the air conditioner according to the first aspect of the present invention is provided corresponding to each of the two heat exchangers 14 and the two heat exchangers 14 arranged in the longitudinal direction with a space between them. Connection part for connecting the refrigerant pipe of each of the two heat exchangers and the refrigerant communication pipe 24 from the outside between the two heat exchangers 14 and the two air outlet ports 17 25 is characterized in that it has a confluence promoting structure for consolidating positions of the two air streams blown out from the two outlets 17 so as to be closer to the two outlets 17.

According to the above configuration, since the heat exchangers 14 are arranged in two at intervals in the longitudinal direction, even if the dimension in the lateral direction of the indoor unit 1 is reduced, the dimension in the longitudinal direction is increased. Can secure an area contributing to heat exchange and improve energy saving. In addition, since it is not necessary to increase the size of the heat exchanger 14, there is also an advantage that the existing production apparatus can be used.

Further, according to the above configuration, since the connection portion for connecting the refrigerant pipe of each of the two heat exchangers 14 and the refrigerant communication pipe is provided between the two heat exchangers 14, two heats are provided. The refrigerant can be equally supplied to each of the exchangers 14, and the flow path of the refrigerant can be shortened.

By the way, when the two heat exchangers 14 are arranged in this manner, the front (front) side located between the two outlets 17 (between the two heat exchangers 14 provided with the connecting portion) Since the air flow does not pass through, there is a possibility that air vortices are generated in this part and the components such as the housing may be exposed.

On the other hand, according to the above-described configuration, a merging promoting structure is provided which directs the merging position of the two air streams blown out from each of the two outlets 17 to be closer to the two outlets 17, The two air flows blown out from the outlets 17 are merged near the two outlets 17. As a result, the portion of the front side located between the two outlets 17 that does not pass the air flow can be minimized to suppress the generation of vortices and make it difficult for dew to adhere.

In the indoor unit 1 of the air conditioner according to the second aspect of the present invention, in the first aspect, the wall portion 32 projecting in the blow-out direction of the air flow is provided on the connection portion 25 side of each of the two outlets 17; As the confluence promoting structure, the wall portions 32 are each provided with a guide surface 32a inclined so as to approach each other in the direction of air flow.

According to the above configuration, the air flow blown out from each of the two outlets 17 flows along the mutually approaching guide surfaces 32 a of the wall portion 32 formed at the edge on the connecting portion 25 side of the two outlets 17. Thus, mixing near the two outlets can suppress the generation of vortices and make it difficult to attach dew.

In the indoor unit 1 of the air conditioner according to the third aspect of the present invention, in the second aspect, the distance between the intersection of the extension lines of each of the guide surfaces 32a and the downwind side of the two heat exchangers 14 is , 60 mm or less.

According to the above configuration, the distance between the intersection of the extension lines of each of the guide surfaces 32a and the surface on the leeward side of the two heat exchangers 14 is 60 mm or less. Can be difficult to attach. When the above distance exceeds 60 mm, it becomes difficult to effectively suppress the generation of a vortex.

In the indoor unit 1 of the air conditioner according to the fourth aspect of the present invention, in the second or third aspect, the guide surface 32a is the leeward side of the corresponding one of the two heat exchangers 14 It is the composition which inclines from the occasion.

According to the above configuration, since the guide surface 32a is inclined from the downwind side of the heat exchanger 14, it is possible to guide the air flow immediately after passing through the heat exchanger 14 by the guide surface 32a. The generation of vortices can be effectively suppressed to make it difficult for dew to be attached.

In the indoor unit 1 of the air conditioner according to the fifth aspect of the present invention, in the first aspect, the two heat exchangers 14 are arranged to be inclined in the direction of facing each other as the merging promoting structure. is there.

According to the above configuration, since the two heat exchangers 14 are arranged in an inclined manner in the direction in which they face each other, the air flow blown out from each of the two air outlets 17 is naturally mixed near the two air outlets. Can suppress the generation of vortices and make it difficult to attach dew.

In the indoor unit 1 of the air conditioner according to the sixth aspect of the present invention, in the fifth aspect, the inclination angle of the two heat exchangers 14 is less than 5 ° with respect to the mounting surface of the indoor unit 1 It is a structure.

According to the above configuration, since the angle of inclination of the two heat exchangers 14 is less than 5 ° with respect to the mounting surface of the indoor unit 1, it is possible to prevent vortices without unnecessarily narrowing the blowable area along the longitudinal direction. Can be made difficult to control by suppressing the occurrence of

The indoor unit 1 of the air conditioner according to aspect 7 of the present invention, in the above aspects 1 to 6, includes two drain pans 34 provided below each of the two heat exchangers 14, and the two thermal units A drain discharge pipe 35 for discharging the drain water received by the two drain pans 34 to the outside of the machine is connected between the exchangers 14.

According to the above configuration, since the drain discharge pipe 35 is disposed between the two heat exchangers 14, even if the dimension in the lateral direction of the indoor unit 1 is reduced and the dimension in the longitudinal direction is increased, The inclination of each of the two drain pans can be secured, and drain water can be discharged without any problem.

In the air conditioner indoor unit 1 according to aspect 8 of the present invention, in the above aspects 1 to 7, it is assumed that the dimension in the short direction when the indoor unit 1 is viewed from the front is h and the dimension in the longitudinal direction is W The relationship of W44h is established.

It is effective to adopt to the indoor unit in which the relationship between the dimension h in the short direction and the dimension W in the longitudinal direction is satisfied by W ≧ 4 h.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Is also included in the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment.

1, 1A Indoor unit 2 Indoor unit body 3 Air guide plate 13 Blower fan 14 Heat exchanger 15 First filter 16 Second filter 18 Opening / closing lid 23 Branch piping 24 Refrigerant connection pipe 25 Connection portion 26 Fan motor 32 Wall portion 32 a Guide Surface 34 drain pan 35 drain discharge pipe

Claims (8)

Two heat exchangers arranged longitudinally spaced apart,
And two air outlets provided corresponding to the two heat exchangers,
Between the two heat exchangers, there is provided a connecting portion for connecting the refrigerant pipe of each of the two heat exchangers and the refrigerant communication pipe from the outside,
An indoor unit of an air conditioner according to claim 1, further comprising: a joining promoting structure for directing a joining position of the two air streams blown out from each of the two outlets to be closer to the two outlets. A wall projecting in the blow-out direction of the air flow is provided on the connection portion side of each of the two blow-out ports,
The indoor unit of an air conditioner according to claim 1, wherein as the merging promoting structure, guide walls are provided on each of the wall portions so as to approach each other as it goes in the blowing direction of the air flow. The indoor unit of an air conditioner according to claim 2, wherein a distance between an intersection of extension lines of each of the guide surfaces and a surface on the leeward side of the two heat exchangers is 60 mm or less. The indoor unit of an air conditioner according to claim 2 or 3, wherein the guide surface is inclined more than the corresponding leeward surface of the two heat exchangers. . As said confluence promotion structure,
The indoor unit of an air conditioner according to claim 1, wherein the two heat exchangers are arranged in an inclined manner in a direction in which the two heat exchangers face each other. The indoor unit of an air conditioner according to claim 5, wherein an angle of inclination of the two heat exchangers is less than 5 ° with respect to a mounting surface of the indoor unit. And two drain pans provided below each of the two heat exchangers,
7. A drain discharge pipe for discharging drain water received by the two drain pans to the outside of the machine is connected between the two heat exchangers. The indoor unit of the air conditioner according to item 1. The relationship of W ≧ 4h is satisfied, where h is the dimension in the short direction when the indoor unit is viewed from the front, and W is the dimension in the longitudinal direction. The indoor unit of the air conditioner as described in.

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