JP2020041732A - Indoor machine of air conditioner - Google Patents

Abstract

To provide an indoor machine of an air conditioner capable of suppressing reduction in air intake even in a case where an obstacle exists at the upper part of the indoor machine of the air conditioner.SOLUTION: An indoor machine of an air conditioner comprises: an upper suction port provided on the upper surface of an indoor machine body; a lower suction port provided on the lower surface of the indoor machine body; an upper air purification filter provided inside the upper suction port; and a lower air purification filter provided inside the lower suction port. The area of an air suction surface for sucking air in the upper suction port is larger than the area of an air suction surface in the lower suction port, and the area of the upper air purification filter is larger than the area of the lower air purification filter.SELECTED DRAWING: Figure 2

Description

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

  For example, Patent Literature 1 proposes an indoor unit of a lower suction type air conditioner having an air purifying function and having an air suction port on a lower surface.

JP 2007-285533 A

  However, in the indoor unit of the air conditioner of Patent Literature 1, for example, an obstacle such as furniture may be arranged below the indoor unit of the air conditioner, and the space between the indoor unit and the obstacle is narrow. In some cases, air cannot be sufficiently suctioned from the suction port on the lower surface. In recent years, there has been a vertical suction type air conditioner provided with suction ports on each of the upper and lower surfaces, but, for example, the indoor unit is disposed near a ceiling to avoid an obstacle disposed below the indoor unit. In some cases, sufficient air cannot be sucked in the suction port on the upper surface due to obstacles such as the ceiling. As described above, when the air cannot be sufficiently sucked, the air cleaning effect may be reduced. An object of one embodiment of the present invention is to provide an indoor unit of an air conditioner that can suppress a reduction in air suction even when an obstacle is present above the indoor unit.

  An indoor unit of an air conditioner according to one embodiment of the present invention includes an upper surface suction port provided on an upper surface of the indoor unit main body, a lower surface suction port provided on a lower surface of the indoor unit main body, and an inner side of the upper surface suction port. An upper surface air cleaning filter provided, and a lower surface air cleaning filter provided inside the lower surface suction port, wherein an area of an air suction surface for sucking air at the upper surface suction port is air at the lower surface suction port. The area of the upper surface air cleaning filter is larger than the area of the suction surface, and the area of the upper surface air cleaning filter is larger than the area of the lower surface air cleaning filter.

  According to one embodiment of the present invention, it is possible to provide an indoor unit capable of suppressing a decrease in air circulation performance.

It is a perspective view showing the appearance of the indoor unit of the air conditioner concerning a 1st embodiment. It is a longitudinal cross-sectional view of the indoor unit of the air conditioner shown in FIG. It is explanatory drawing which shows the flow of air (upper suction) in the air-conditioned space by the indoor unit of the air conditioner concerning 1st Embodiment. It is explanatory drawing which shows the flow of air (downward suction) in an air-conditioned space by the indoor unit of the air conditioner concerning 1st Embodiment. It is explanatory drawing which shows the flow of air (up and down suction) in the air-conditioned space by the indoor unit of the air conditioner concerning 1st Embodiment. It is explanatory drawing which shows the flow of air (upper suction) in the air-conditioned space when there is an obstacle on the upper surface of the indoor unit of the air conditioner. It is explanatory drawing which shows the flow of air (vertical suction) in the air-conditioned space when there is an obstacle on the upper surface of the indoor unit of an air conditioner. It is a conceptual diagram showing composition of an important section of an indoor unit concerning Embodiment 1. It is a conceptual diagram showing composition of an important section of an indoor unit concerning Embodiment 2. It is a conceptual diagram showing composition of an important section of an indoor unit concerning Embodiment 3. It is a key map showing the composition of the important section of the indoor unit concerning Embodiment 4. It is a conceptual diagram showing composition of an important section of an indoor unit concerning Embodiment 5. It is a key map showing the composition of the important section of the indoor unit concerning Embodiment 6.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or equivalent elements are denoted by the same reference numerals, and redundant description will be omitted.

(First embodiment)
FIG. 1 is a front view showing an appearance of an indoor unit 1 of the air conditioner according to the present embodiment. FIG. 2 is a cross-sectional view of the indoor unit 1 of the air conditioner shown in FIG.

  As shown in FIGS. 1 and 2, the indoor unit 1 of the air conditioner includes an indoor unit main body 2 and a wind guide plate 3 disposed on the front surface of the indoor unit main body 2. Inside the indoor unit main body 2, a blower 31, a heat exchanger 32, an ion generator 33, and the like are provided. When viewed from the front (front) of the indoor unit main body 2, the width direction is the left-right direction, the depth direction of the indoor unit main body 2 is the front-back direction, and the height direction of the indoor unit main body 2 is the up-down direction.

  An air outlet 34 is provided on the front surface of the indoor unit main body 2, and the air guide plate 3 is provided at the air outlet 34. An upper surface suction port 11 is provided on an upper surface of the indoor unit main body 2, and a lower surface suction port 21 is provided on a lower surface of the indoor unit main body. Inside the indoor unit main body 2, an upper air passage from the upper surface suction port 11 to the outlet port 34 and a lower air path from the lower face suction port 21 to the outlet port 34 are formed. The blower 31, the heat exchanger 32, and the ion generator 33 are arranged in a portion where is common.

  Further, the indoor unit 1 has an upper surface filter 12 (upper surface air cleaning filter) for purifying passing air inside the upper surface suction port 11, and purifies the passing air inside the lower surface suction port 21. It has a lower surface filter 22 (lower surface air cleaning filter).

  The upper filter 12 and the lower filter 22 are air cleaning filters that collect and remove fine dust contained in air passing through these filters, and are referred to as so-called pre-filters that collect and remove coarse dust. This is a filter with higher performance, thicker thickness, and greater ventilation resistance than a dust collection filter. As the upper surface filter 12 and the lower surface filter 22, for example, a HEPA filter (High Efficiency Particulate Air Filter), a ULPA (Ultra Low Penetration Air Filter), or the like is used, and may be arbitrarily selected according to the purpose and required performance. . The HEPA filter has a thickness of, for example, 30 mm, and has a high collection rate of fine dust (air cleaning rate) and a high efficiency of removing fine dust (air cleaning efficiency).

  In the indoor unit 1, by rotating the blower 31, the air sucked from the upper surface suction port 11 is blown out from the outlet 34 through the upper surface filter 12, the blower 31, the heat exchanger 32, and the ion generator 33. Further, the air sucked from the lower surface inlet 21 is blown out from the outlet 34 through the lower surface filter 22, the blower 31, the heat exchanger 32, and the ion generator 33. The blown air (wind) contains ions generated by the ion generator 33. By the wind including the ions, fungi, bacteria, viruses, and the like in the air-conditioned space are inactivated, and the air-conditioned space can be cleaned. The position of the ion generator 33 is not particularly limited as long as the air to be blown out can contain ions.

  The blower 31 is composed of, for example, a sirocco fan or a turbo fan. The heat exchanger 32 is arranged at a position in front of the blower 31 (a position on the front side of the indoor unit 1 with respect to the blower 31). The air passing through the heat exchanger 32 is cooled and heated by the heat exchanger 32, so that the air conditioner performs air conditioning operations such as cooling, dehumidification, and heating.

  The indoor unit 1 typically has an upper suction that sucks air from the upper suction port 11, a lower suction that sucks air from the lower suction port 21, or a vertical suction that sucks air from the upper suction port 11 and the lower suction port 21, respectively. The air can be cleaned by the method described above. The indoor unit 1 can perform an air cleaning operation together with an air conditioning operation such as cooling, dehumidification, and heating. Further, only the air cleaning operation can be performed. In the indoor unit 1, during the air conditioning operation and / or the air cleaning operation, upper suction, lower suction, vertical suction, and the like are performed according to the blowing direction of the air blown out from the outlet 34. The blowing direction of the air blown out from the blowing port 34 can be changed by operating the above-described baffle plate 3.

  Here, the above-described upper suction, lower suction, and upper and lower suction in the indoor unit 1 will be described with reference to FIGS. 3, 4, and 5. FIG. FIG. 3 is a diagram for explaining upper suction by the indoor unit 1. FIG. 4 is a diagram for explaining lower suction by the indoor unit 1. FIG. 5 is a diagram for explaining vertical suction by the indoor unit 1. The upper suction, the lower suction, and the upper and lower suction show typical examples of the suction which becomes dominant depending on the direction of the air (wind) blown out from the outlet 34.

  In the case of the upper suction, in the indoor unit 1, as shown by an arrow in FIG. 3, air (wind) is blown downward toward the floor from the outlet, and the soaring dust is sucked together with the air from the upper inlet. In this case, there is little contact between the air blown out from the outlet and the air sucked in from the upper surface inlet, and the air can be efficiently cleaned.

  In the case of the lower suction, in the indoor unit 1, as shown by an arrow in FIG. 4, air is blown upward from the outlet toward the ceiling, and the air flowing along the ceiling and the wall to the floor is removed from the lower surface of the indoor unit 1. Is sucked in from the lower surface suction port provided in the bottom. In this case, there is little contact between the air blown from the outlet and the air sucked from the lower surface suction port, and the air can be efficiently cleaned.

  In the case of vertical suction, the indoor unit 1 blows air downward from the air outlet toward the floor as shown by the arrow in FIG. The incoming dust is sucked through an upper surface suction port provided on the upper surface of the indoor unit 1. On the other hand, when viewed from the indoor unit 1, dust that has soared toward the front side of the air blown to the floor is sucked through a lower surface suction port provided on the lower surface of the indoor unit 1. In this case, the air blown out from the outlet is sucked from both the upper surface inlet and the lower surface inlet, so that the air can be efficiently cleaned.

  The indoor unit 1 is provided at a relatively high position in the air-conditioned space, for example, near the ceiling. In particular, when there is an obstacle such as furniture immediately below the indoor unit 1, the tendency to be provided at a relatively high position in the air-conditioned space becomes higher. For this reason, in the upper surface suction port provided on the upper surface of the indoor unit 1, for example, as shown in FIGS. 6 and 7, the ceiling becomes an obstacle, and the air suction amount may be relatively lower than that of the lower surface. It is necessary to increase the amount of suction.

  FIG. 8 is a conceptual diagram illustrating a configuration of a main part of the indoor unit 1 according to the present embodiment. As shown in FIGS. 2 and 8, the area of the air suction surface of the upper surface suction port 11 (hereinafter, referred to as “upper suction surface”) and the area of the upper surface filter 12 arranged inside the upper surface suction port 11 are: The area of the lower surface suction port 21 is larger than the area of the air suction surface (hereinafter referred to as “lower suction surface”) and the area of the lower surface filter 22 disposed inside the lower surface suction port 21. Further, the upper surface suction port 11 and the lower surface suction port 21 are formed horizontally, and the upper surface filter 12 and the lower surface filter 22 are horizontally arranged. For example, the upper filter 12 and the lower filter 22 are designed such that L12> L22, where L12 is the width of the upper filter 12 and L22 is the width of the lower filter 22. The area of the upper suction surface and the area of the upper filter 12 may be larger than the area of the lower suction surface and the area of the lower filter 22. For example, the sizes of the upper and lower surfaces of the indoor unit main body 2, the upper suction port 11 and It should be set in consideration of the shape including the shape of the member adjacent to the top filter 12, the size of the gap between the member, the size of the indoor unit main body 2, and the like, and is not particularly limited.

  According to the present embodiment, in the indoor unit 1, the area of the upper suction surface is larger than the area of the lower suction surface, and the area of the upper filter 12 is larger than the area of the lower filter 22. As shown in FIGS. 6 and 7, even if there is an obstacle in the upper part of the indoor unit 1, it becomes easier to suck air from the upper surface suction port 11. Thus, the amount of air suction from the upper surface suction port 11 can be increased, and the amount of air blown out from the outlet 34 increases. Therefore, it is possible to provide an indoor unit capable of suppressing a decrease in air circulation performance. Further, since the air volume increases, the air blown out from the outlet 34 can reach far away, and the air cleaning rate in the air-conditioned space (air clean space) can be improved.

(Second embodiment)
Next, a second embodiment of the present invention will be described. In the following, description of the same points as in the first embodiment will be omitted.

  FIG. 9 is a conceptual diagram illustrating a configuration of a main part of the indoor unit 1 according to the present embodiment. In the indoor unit 1 according to the present embodiment, as shown in FIG. 9, the upper surface suction port surface is inclined such that the front side of the indoor unit main body 2 in the upper surface suction port surface is located below. More specifically, the upper surface suction port 11 is such that the front end 11a of the indoor unit main body 2 on the upper suction surface is positioned lower than the rear end 11b of the indoor unit main body 2 on the upper suction surface. It is inclined. The upper surface filter 12 has an end 12a on the front surface side of the indoor unit main body 2 on a surface facing the upper surface suction port 11 of the upper surface filter 12 lower than an end 12b on the rear surface side of the indoor unit main body 2 on the opposing surface. It is inclined to be located at. In other words, the upper surface filter 12 is inclined such that the front side of the indoor unit main body 2 in the upper surface filter 12 is located below. The indoor unit 1 according to the present embodiment is different from the indoor unit 1 according to the first embodiment in this point.

  Since the upper suction surface and the upper filter 12 are inclined as described above, even if there is an obstacle such as a ceiling in the upper part of the indoor unit 1, the indoor unit 1 is connected to the upper suction port 11 and the obstacle. Can be secured, and the path of wind (air) can be widened. Further, since the upper suction surface and the upper surface filter 12 are inclined as described above, the suction speed vector of the indoor unit 1 is in the vertical direction (in spite of the fact that the upper surface filter 12 is linearly arranged). (Downward) as well as in the horizontal direction. For this reason, it becomes easier to suck air as compared with the case where the speed vector of suction of the indoor unit 1 is configured substantially vertically (downward) as in the first embodiment, for example. Therefore, since the amount of air blown out from the outlet 34 can be increased, even if there is an obstacle in the upper part of the indoor unit 1, for example, a decrease in air circulation performance can be suppressed. Further, since the air volume can be increased, the air blown out from the outlet 34 can reach far, and the air cleaning rate in the air-conditioned space (air clean space) can be improved.

  Further, since the upper suction surface and the upper surface filter 12 are inclined as described above, as shown in FIG. 9, the width L11 in the inclined direction of the upper surface suction opening 11 (in other words, the indoor space at the upper surface suction opening 11, The length between the front end 11a and the rear end 11b of the machine body 2) is the projected width L11 ′ of the upper surface suction port 11 onto the horizontal plane in the above-described inclined direction (in other words, the upper surface suction port 11). (The horizontal length between the front end 11a and the rear end 11b of the indoor unit main body 2). That is, L11> L11 '.

  For this reason, since the upper suction surface and the upper filter 12 are inclined as described above, the upper suction surface is formed horizontally, for example, as in the first embodiment, and the upper filter 12 is disposed horizontally. In comparison with the case where the upper suction surface has the same horizontal width (L11 ′), the opening width (opening area) of the upper suction surface can be increased. Therefore, the amount of air sucked from the upper surface suction port 11 can be increased. Therefore, since the amount of air blown out from the outlet 34 can be increased, even if there is an obstacle in the upper part of the indoor unit 1, for example, a decrease in air circulation performance can be suppressed. Further, since the air volume increases, the air blown out from the outlet 34 can reach far away, and the air cleaning rate in the air-conditioned space (air clean space) can be improved.

  In this embodiment, the inclination angle of the upper suction surface and the inclination angle of the upper filter 12 are desirably the same, but may be different. It is desirable that the larger the inclination angle of the upper suction surface and the inclination angle of the upper surface filter 12 are, the larger the effect described above becomes. However, in order to incline the upper suction surface and the upper filter 12 as described above, for example, the gap between the upper suction port 11 and a member adjacent to the upper filter 12 (for example, the blower 31, the heat exchanger 32, etc.) is reduced. It is necessary to change the shape of the member adjacent to the upper surface suction port 11 and the upper surface filter 12. Alternatively, it is necessary to increase the size of the indoor unit main body 2. For this reason, in order to keep the indoor unit 1 within the specified dimensions, it is desirable that the inclination angle of the upper suction surface and the inclination angle of the upper surface filter 12 are each set to 20 degrees or less. Further, in the present embodiment, the upper surface suction surface and the upper filter 12 are inclined such that the front side of the outdoor unit in the upper surface suction surface and the upper filter 12 faces downward. The front side may be inclined upward.

  According to the present embodiment, by inclining the upper suction surface and the upper filter 12, the upper suction surface is formed horizontally, for example, as in the indoor unit of the first embodiment, and the upper filter 12 is moved horizontally. As compared with the case where it is arranged, the amount of air suction at the upper surface suction port 11 can be increased, and a decrease in air circulation performance can be suppressed.

(Third embodiment)
Next, a third embodiment of the present invention will be described. In the following, description of the same points as in the first or second embodiment will be omitted.

  FIG. 10 is a conceptual diagram illustrating a configuration of a main part of the indoor unit 1 according to the present embodiment. In the indoor unit 1 according to the present embodiment, as shown in FIG. 10, the lower suction surface is inclined such that the front side of the indoor unit main body 2 in the lower suction surface is located above. More specifically, the lower surface suction port 21 is such that the front end 21a of the indoor unit body 2 on the lower suction surface is positioned higher than the rear end 21b of the indoor unit body 2 on the lower suction surface. It is inclined. The lower surface filter 22 is such that the front end 22a of the lower surface filter 22 facing the lower surface suction port 21 on the front surface side of the indoor unit main body 2 is higher than the rear surface end 22b of the indoor unit main body 2 on the opposing surface. It is inclined to be located at. In other words, the lower filter 22 is inclined such that the front side of the indoor unit main body 2 in the lower filter 22 is located above. The indoor unit 1 according to the present embodiment is different from the indoor unit 1 according to the first embodiment in this point.

  Since the lower suction surface and the lower filter 22 are inclined as described above, even if there is an obstacle such as furniture or a curtain rail directly below the indoor unit 1, the indoor unit 1 is connected to the lower suction port 21. It is possible to secure a gap with obstacles and widen the path of wind (air). Further, since the lower suction surface and the lower filter 22 are inclined as described above, the suction speed vector of the indoor unit 1 is in the vertical direction (in spite of the lower filter 22 being linearly arranged). Not only in the upper direction) but also in the horizontal direction. For this reason, compared with the case where the suction speed vector of the indoor unit 1 is configured substantially in the vertical direction (upward), it becomes easier to suck air. Therefore, since the amount of air blown out from the outlet 34 can be increased, even if there is an obstacle in the lower part of the indoor unit 1, for example, a decrease in air circulation performance can be suppressed. Further, since the air volume can be increased, the air blown out from the outlet 34 can reach far, and the air cleaning rate in the air-conditioned space (air clean space) can be improved.

  Further, since the lower suction surface and the lower filter 22 are inclined as described above, as shown in FIG. 10, the width L21 in the inclined direction at the lower suction port 21 (in other words, the indoor space at the lower suction port 21, as shown in FIG. 10). The length between the front end 21a and the rear end 21b of the machine body 2) is the projected width L21 ′ of the lower surface suction port 21 onto the horizontal surface in the above-described inclined direction (in other words, the lower surface suction port 21). (The horizontal length between the front end 21a and the rear end 21b of the indoor unit body 2). That is, L21> L21 '.

  For this reason, the lower suction surface and the lower filter 22 are inclined as described above, so that the lower suction surface is formed horizontally. Even if the horizontal width (L21 ′) of the suction surface is the same, the opening width (opening area) of the lower suction surface can be increased. Therefore, the amount of air sucked from the upper surface suction port 11 can be increased. Therefore, since the amount of air blown out from the outlet 34 can be increased, even if there is an obstacle in the lower part of the indoor unit 1, for example, a decrease in air circulation performance can be suppressed. Further, since the air volume increases, the air blown out from the outlet 34 can reach far away, and the air cleaning rate in the air-conditioned space (air clean space) can be improved.

  In the present embodiment, the inclination angle of the lower suction surface and the inclination angle of the lower filter 22 are desirably the same, but may be different. It is desirable that the larger the inclination angle of the lower suction surface and the inclination angle of the lower surface filter 22 are, the larger the above-mentioned effect becomes. However, in order to incline the lower suction surface and the lower filter 22 as described above, for example, as described in the second embodiment, for example, a member adjacent to the lower suction port 21 and the lower filter 22 (for example, It is necessary to reduce the gap with the fan 31, the heat exchanger 32, etc.) or to change the shape of a member adjacent to the lower surface suction port 21 and the lower surface filter 22. Alternatively, it is necessary to increase the size of the indoor unit main body 2. For this reason, in order to keep the indoor unit 1 within the specified dimensions, it is desirable that the inclination angle of the lower suction surface and the inclination angle of the lower surface filter 22 are each set to 20 degrees or less. Further, in the present embodiment, the lower suction surface and the lower filter 22 are inclined so that the front side of the outdoor unit in the lower suction surface and the lower filter 22 faces upward. The front side may be inclined downward.

  According to the present embodiment, by inclining the lower suction surface and the lower filter 22, the lower suction surface is formed horizontally, for example, as in the indoor unit of the first embodiment, and the lower filter 22 is moved horizontally. The air suction amount at the lower surface suction port 21 can be increased as compared with the case where the indoor unit is disposed. For example, even if there is an obstacle in the lower part of the indoor unit, it is possible to suppress a decrease in air circulation performance. An indoor unit that can be provided can be provided.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described. In the following, a description of the same points as in the first to third embodiments will be omitted.

  FIG. 11 is a conceptual diagram illustrating a configuration of a main part of the indoor unit 1 according to the present embodiment. In the indoor unit 1 according to the present embodiment, as shown in FIG. 11, the upper surface suction port 11 is such that the front end 11a of the indoor unit body 2 on the upper suction surface is on the rear surface side of the indoor unit body 2 on the upper suction surface. Is inclined below the end portion 11b. The upper surface filter 12 has an end 12a on the front surface side of the indoor unit main body 2 on a surface facing the upper surface suction port 11 of the upper surface filter 12 lower than an end 12b on the rear surface side of the indoor unit main body 2 on the opposing surface. It is inclined to be located at. Further, the lower surface suction port 21 is inclined such that the front end 21a of the indoor unit main body 2 on the lower suction surface is positioned higher than the rear end 21b of the indoor unit main body 2 on the lower suction surface. I have. The lower surface filter 22 is such that the front end 22a of the lower surface filter 22 facing the lower surface suction port 21 on the front surface side of the indoor unit main body 2 is higher than the rear surface end 22b of the indoor unit main body 2 on the opposing surface. It is inclined to be located at. That is, the indoor unit 1 according to the present embodiment is a combination of the second embodiment and the third embodiment.

  According to this embodiment, by inclining the upper suction surface and the upper filter 12 and the lower suction surface and the lower filter 22, for example, as in the air conditioners of the second and third embodiments, the upper filter 12 Alternatively, the suction amount of air taken into the air conditioner from the upper surface suction port 11 or the lower surface suction port 21 can be increased as compared with the case where one of the lower surface filters 22 is arranged at an angle. For this reason, the amount of air sucked from the upper surface suction port 11 and the lower surface suction port 21 can be increased, and for example, even if there is an obstacle in the upper or lower part of the indoor unit 1, the reduction in air circulation performance is suppressed. can do.

(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described. In the following, a description of the same points as in the first to fourth embodiments will be omitted.

  FIG. 12 is a conceptual diagram illustrating a configuration of a main part of the indoor unit 1 according to the present embodiment. In the indoor unit 1 according to the present embodiment, as shown in FIG. 12, the upper surface suction port 11 is such that the front end 11 a of the upper surface of the indoor unit main body 2 on the upper suction surface is on the rear surface side of the indoor unit main body 2 on the upper suction surface. And the upper suction surface is curved so as to be convex upward. The indoor unit 1 according to the present embodiment is different from the indoor unit 1 according to the fourth embodiment in this point.

  According to the present embodiment, by bending the upper suction surface and the upper filter 12 so as to be convex upward, for example, the upper suction surface and the upper filter 12 are changed like the air conditioner of the fourth embodiment. The area of the upper surface suction port 11 and the upper surface filter 12 can be increased as compared with the case where the upper surface suction port is not curved, and the amount of air sucked into the air conditioner from the upper surface suction port 11 can be increased. For this reason, the amount of air sucked from the upper surface suction port 11 can be increased, and for example, even if there is an obstacle in the upper part of the indoor unit 1, a decrease in air circulation performance can be suppressed.

(Sixth embodiment)
Next, a sixth embodiment of the present invention will be described. In the following, description of the same points as in the first to fifth embodiments will be omitted.

  FIG. 13 is a conceptual diagram illustrating a configuration of a main part of the indoor unit 1 according to the present embodiment. In the indoor unit 1 according to the present embodiment, as shown in FIG. 13, the upper surface suction port 11 is configured such that the front end 11 a of the indoor unit body 2 on the upper suction surface is on the rear surface side of the indoor unit body 2 on the upper suction surface. And the upper suction surface is curved so as to protrude downward. The indoor unit 1 according to the present embodiment is different from the indoor unit 1 according to the fourth embodiment in this point.

  According to the present embodiment, by bending the upper suction surface and the upper filter 12 so as to be convex downward, for example, the upper suction surface and the upper filter 12 like the air conditioner of the fourth embodiment described above. The area of the upper surface suction port 11 and the upper surface filter 12 can be increased as compared with the case where the upper surface suction port is not curved, and the amount of air sucked into the air conditioner from the upper surface suction port 11 can be increased. For this reason, the amount of air sucked from the upper surface suction port 11 can be increased, and for example, even if there is an obstacle in the upper part of the indoor unit 1, a decrease in air circulation performance can be suppressed.

  The present invention is not limited to the above-described embodiment, and is substantially the same as the configuration shown in the above-described embodiment, a configuration having the same operation and effect, or a configuration capable of achieving the same object. May be replaced by

  1 indoor unit (air conditioner indoor unit), 2 indoor unit main body, 3 air guide plate, 11 upper surface inlet, 12 upper surface filter, 21 lower surface inlet, 22 lower surface filter, 31 blower, 32 heat exchanger, 33 ion Generator, 34 outlet

Claims (5)

An upper surface suction port provided on the upper surface of the indoor unit main body,
A lower surface suction port provided on a lower surface of the indoor unit main body,
An upper surface air purification filter provided inside the upper surface suction port,
A lower surface air purification filter provided inside the lower surface suction port,
An air conditioner, wherein an area of an air suction surface for sucking air at the upper surface suction port is larger than an area of an air suction surface at the lower surface suction port, and an area of the upper surface air cleaning filter is larger than an area of the lower surface air cleaning filter. Machine indoor unit.   The indoor unit of the air conditioner according to claim 1, wherein the air suction surface of the upper surface suction port and the upper surface air purification filter are inclined.   The indoor unit of an air conditioner according to claim 1, wherein the air suction surface of the lower surface suction port and the lower surface air cleaning filter are inclined.   The indoor unit for an air conditioner according to any one of claims 1 to 3, further comprising a blowout port for blowing air sucked from the upper surface suction port or the lower surface suction port to a front side.   The indoor unit of an air conditioner according to claim 4, further comprising an ion generator provided in a path through which air passes from the upper surface suction port or the lower surface suction port to the outlet.

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