WO2019225278A1 - Air conditioning indoor unit - Google Patents

Abstract

Provided is an air conditioning indoor unit (1) configured to reduce the influence of outside dust on an axial flow fan (11) and a heat exchanger (12) which are provided in the indoor unit body (10). The indoor unit body (10) of the air conditioning indoor unit (1) has a suction opening formed in a side surface thereof, and also has a discharge opening formed in the bottom surface thereof. The indoor unit body (10) has the axial flow fan (11) and the heat exchanger (12) which surrounds the axial flow fan (11). The air conditioning indoor unit (1) is further provided with a decorative panel (20), and the decorative panel (20) is disposed outside the indoor unit body (10) so that at least part of the decorative panel (20) surrounds the indoor unit body (10).

Description

Air conditioning indoor unit

In the air conditioning field, in particular, the present invention relates to an air conditioning indoor unit including an indoor unit body having a suction port on a side surface and an outlet on a bottom surface.

2. Description of the Related Art Conventionally, there are ceiling-suspended air conditioning indoor units that include an indoor unit body attached to the back of a suspended ceiling and a blowout panel that is provided below the indoor unit body and is exposed from the suspended ceiling. The indoor unit main body has a casing having a suction port on a side surface, a blower outlet on a bottom surface, and a frame structure. The casing includes a top plate, a bottom frame, and a plurality of support columns, and the support columns connect the top plate and the bottom frame in a manner perpendicular to the top plate and the bottom frame. A fan, a heat exchanger, a filter, and the like are installed in the casing. The blowout panel is installed on the bottom surface of the indoor unit main body.

However, in the above-described air conditioning indoor unit, as described above, the indoor unit main body has a casing having a frame structure, and therefore, members such as a fan, a heat exchanger, and a filter provided in the indoor unit main body are complete. Will be exposed to the outside. For this reason, especially when the above-mentioned air conditioning indoor unit is applied to a place where no suspended ceiling is installed, dust tends to accumulate on members such as a fan, a heat exchanger, and a filter, resulting in a decrease in operating efficiency of the air conditioning indoor unit. Cheap.

Provided is an air-conditioning indoor unit that can reduce the influence of external dust on members such as a fan and a heat exchanger provided in the indoor unit body.

In order to realize the above-described object, the air conditioning indoor unit includes an indoor unit body having a suction port on a side surface and a blower outlet on a bottom surface. The indoor unit main body is provided with an axial fan and a heat exchanger surrounding the axial fan. The air conditioning indoor unit further includes a decorative panel, and the decorative panel is installed on the outer surface of the indoor unit main body so that at least a part of the decorative panel surrounds the indoor unit main body.

According to this air conditioning indoor unit, the decorative panel is installed outside the side surface of the indoor unit body so that at least a part of the decorative panel surrounds the indoor unit body. The influence given to members, such as an axial fan and a heat exchanger provided in can be reduced. In particular, when the air conditioning indoor unit is applied to a place where no suspended ceiling is installed, it is possible to prevent the operating efficiency of the air conditioning indoor unit from being reduced by dust accumulated on members such as an axial fan and a heat exchanger. Useful. Furthermore, since the members such as the axial fan and the heat exchanger are completely exposed to the outside, it is possible to prevent the appearance from being affected. In addition, the insects, mice, etc. may bite the axial fan, heat exchanger, etc. exposed to the outside, or external objects may hit the axial fan, heat exchanger, etc. exposed to the outside, etc. The lifetime can be prevented from being shortened.

In the air conditioning indoor unit, the indoor unit body preferably has a plurality of side surfaces, each side surface has a suction port, and the heat exchanger is preferably installed along the side surface of the indoor unit body.

This air-conditioning indoor unit is useful for increasing the overall air handling capacity and realizing miniaturization. Even in such a case, the effect of external dust on the heat exchange efficiency of the heat exchanger can be reduced by using the decorative panel.

In the air conditioning indoor unit, the decorative panel is preferably assembled by a plurality of sub-panels.

According to this air conditioning indoor unit, by disassembling the decorative panel into a plurality of sub-panels, the decorative panel can be easily transported and processed, the processing can be simplified, and assembly is free.

In the above-described air conditioning indoor unit, the following structure can be adopted. The plurality of sub-panels are a first sub-panel and a second sub-panel that can be separated. The first sub panel has a U-shape and covers the first side surface, the second side surface, and the third side surface among the four side surfaces of the indoor unit body. The second sub panel has a planar shape and covers the fourth side surface among the four side surfaces of the indoor unit main body.

According to the air conditioning indoor unit having the above-described structure, external dust is applied to members such as an axial fan and a heat exchanger installed in the indoor unit body by covering the four side surfaces of the indoor unit body using the decorative panel. The influence exerted can be reduced more effectively, and attachment / detachment can be simplified.

In the above case, the following structure can be further adopted. The air conditioning indoor unit includes a refrigerant pipe, and the refrigerant pipe is drawn from the fourth side surface of the indoor unit main body and passes through the second sub-panel. The second sub-panel is composed of a plurality of parts, and the plurality of parts form a hole through which the refrigerant pipe passes by joining.

According to the air conditioning indoor unit having the above-described structure, it is possible to easily perform the work even when it is necessary to penetrate the refrigerant pipe through the decorative panel at the time of installation. Specifically, after placing a part of the second sub-panel on the refrigerant pipe, the refrigerant pipe penetrates the decorative panel simply by combining and attaching the remaining part of the second sub-panel from the side facing these parts. Since the structure can be formed, the operation can be easily performed.

In the above-described air conditioning indoor unit, the following structure can be adopted. Each of the plurality of sub-panels has a planar shape, and each covers a plurality of side surfaces of the indoor unit main body.

According to the air conditioning indoor unit having the above-described structure, the decorative panel can be easily transported and processed by disassembling the decorative panel into a plurality of sub-panels. In addition, by covering the plurality of side surfaces of the indoor unit body using the decorative panel, the influence of external dust on the members such as the axial fan and the heat exchanger provided in the indoor unit body can be more effectively achieved. Can be reduced.

In the above case, the following structure can be further adopted. The air conditioning indoor unit includes a refrigerant pipe, and the refrigerant pipe is drawn from one side surface of the indoor unit main body and penetrates the decorative panel. Among the plurality of sub-panels, at least one sub-panel is constituted by a plurality of portions, and the plurality of portions form a hole through which the refrigerant pipe penetrates by joining.

According to the air conditioning indoor unit having the above-described structure, it is possible to easily perform the work even when it is necessary to penetrate the refrigerant pipe through the decorative panel at the time of installation. Specifically, after a certain part of a certain sub-panel is placed on the refrigerant pipe, a structure in which the refrigerant pipe penetrates the decorative panel is formed simply by combining and attaching the remaining part of the sub-panel from the side facing these parts. So you can work easily. In addition, it is possible to respond flexibly according to the position of the refrigerant pipe.

In the air conditioning indoor unit, a filter is provided in the indoor unit body, and the filter is preferably located between the heat exchanger and the decorative panel.

This air conditioning indoor unit can further reduce the influence of external dust on the heat exchange efficiency of the heat exchanger provided in the indoor unit body. Moreover, the member located inside can be protected using a filter.

In the air conditioning indoor unit, the decorative panel preferably has a lattice structure. For example, the lattice structure is provided to face the suction port of the indoor unit main body.

According to this air conditioning indoor unit, even if the space between the decorative panel and the outer surface of the indoor unit body is relatively narrow, the wind is easily sent to the indoor unit body 10 via the lattice structure of the decorative panel. be able to. That is, it contributes to reducing the overall dimensions.

In the air conditioning indoor unit, the air conditioning indoor unit includes a refrigerant pipe and / or a duct, the refrigerant pipe is drawn from one side surface of the indoor unit main body and penetrates the decorative panel, and / or the duct penetrates the decorative panel. It is preferable.

In the air conditioning indoor unit, the indoor unit body preferably has a frame structure, and the decorative panel is preferably connected to a member constituting the frame structure by a connecting member.

Here, the connection member may be a screw nail, a bolt, a rivet or the like, and the member constituting the frame structure may be a sheet metal member or a mold member.

According to this air conditioning indoor unit, even when the decorative panel is manufactured from a material having a relatively low hardness, the stability in the mounted state of the decorative panel can be improved.

In the above-described air conditioning indoor unit, the following structure can be adopted. The plurality of parts are joined by an engagement structure.

This air conditioning indoor unit can easily assemble and separate multiple parts.

In the air conditioning indoor unit, the decorative panel and the outer surface of the indoor unit main body are preferably spaced apart.

According to this air conditioning indoor unit, wind can be sent to the indoor unit body through the gap between the decorative panel and the outer surface of the indoor unit body, reducing pressure loss and increasing air blowing efficiency. Contribute to.

In the air conditioning indoor unit, it is preferable that a blowout panel is installed on the bottom surface of the indoor unit body.

This air-conditioning indoor unit not only helps to improve the aesthetics, but also guides the airflow that blows out to the air-conditioning target space using the blow-out panel, thereby improving the comfort of people in the air-conditioning target space.

In an air conditioning indoor unit, the indoor unit main body has a casing, the casing has a top plate, a bottom frame, and a plurality of support columns, and the support columns intersect with the top plate and the bottom frame. Is preferably connected.

In the air conditioning indoor unit, the decorative panel preferably has a duct connection part. Here, the duct connecting portion only needs to be able to connect the duct, and may be a cylindrical portion such as a cylinder or a rectangular tube, or a connection structure of another shape.

Since the decorative panel is installed in the vicinity of the outer surface of the indoor unit main body so that at least a part of the decorative panel surrounds the indoor unit main body, external dust is provided on the indoor unit main body using the decorative panel. The influence on members such as a fan and a heat exchanger can be reduced. In particular, when the air conditioning indoor unit is applied to a place where no suspended ceiling is installed, it is possible to prevent the operating efficiency of the air conditioning indoor unit from being reduced by dust accumulated on members such as an axial fan and a heat exchanger. Useful.

The perspective view which shows an air conditioning indoor unit typically. The blowout panel and the top plate are not shown. The perspective view which shows typically the decoration panel contained in an air-conditioning indoor unit. The top view which shows typically the decoration panel contained in an air-conditioning indoor unit. The side view which shows typically the decoration panel contained in an air-conditioning indoor unit. The structure of the first sub-panel is mainly shown. The other side view which shows typically the decoration panel contained in an air-conditioning indoor unit. The structure of the second sub panel is mainly shown. The side view which shows typically the structure of the 1st part of a 2nd subpanel. The side view which shows typically the structure of the 2nd part of a 2nd sub panel. The perspective view which shows typically the joining structure of the decoration panel contained in an air-conditioning indoor unit. The perspective view which shows typically the modification of the decoration panel contained in an air-conditioning indoor unit. The other perspective view which shows typically the modification of the decoration panel contained in an air-conditioning indoor unit. Some subpanels are omitted.

Hereinafter, the air-conditioning indoor unit will be described with reference to FIGS. 1 to 5C.

Here, for convenience of explanation, three directions orthogonal to each other are defined as an X direction, a Y direction, and a Z direction, and one side in the Z direction is Z1, and the other side in the Z direction is Z2. The X direction and the Y direction correspond to the direction in the horizontal plane when the air conditioning indoor unit is actually attached, and the Z direction corresponds to the up and down direction when the air conditioning indoor unit is actually attached. The Z1 side corresponds to the upper side when the air conditioning indoor unit is actually attached, and the Z2 side corresponds to the lower side when the air conditioning indoor unit is actually attached.

As shown in FIG. 1, the air conditioning indoor unit 1 includes an indoor unit body 10 and a decorative panel 20, and the indoor unit body 10 has a suction port on a side surface (a surface perpendicular to the X direction or the Y direction), and a bottom surface. (A surface perpendicular to the Z direction and located on the Z2 direction side) has an air outlet. The indoor unit main body 10 is provided with an axial fan 11 and a heat exchanger 12 surrounding the axial fan 11. The decorative panel 20 is installed on the outer surface of the indoor unit body 10 so that at least a part thereof surrounds the indoor unit body 10.

The indoor unit body 10 has a plurality of side surfaces, and each side surface has a suction port. The heat exchanger 12 is installed along the side surface of the indoor unit body 10. Specifically, the indoor unit main body 10 includes a casing having a frame structure. The casing includes, for example, a top plate, a bottom frame, and a plurality of columns (a top plate, a bottom frame, and a top plate) manufactured by a sheet metal member (not shown). The material of the plurality of struts is not limited and can be appropriately selected according to need), and the struts are Z so as to intersect (for example, but not limited to) the top plate and the bottom frame. Extend in the direction and join the top and bottom frames together. That is, all four side surfaces of the indoor unit body 10 are open, and the suction ports are formed on all four side surfaces of the indoor unit body. The heat exchanger 12 has portions respectively corresponding to the four side surfaces of the indoor unit body 10. The heat exchanger 12 has an annular shape that is open when viewed along the Z direction, and a refrigerant pipe constituting the heat exchanger 12 is drawn out from one end of the opened ring and penetrates the decorative panel 20. Thereby, refrigerant piping is connected with the air-conditioning outdoor unit which is not illustrated, and a refrigerant circuit is constituted.

As shown in FIG. 1, the indoor unit body 10 is provided with a filter 13, and the filter 13 is located between the heat exchanger 12 and the decorative panel 20. Here, the filter 13 is provided on all four side surfaces of the indoor unit body 10, and the dimensions of the filter 13 are substantially the same as the dimensions of the heat exchanger 12 (suction port).

In addition, the decorative panel 20 and the outer surface of the indoor unit body 10 (here, the filter 13 is configured. However, the present invention is not limited thereto. The decorative panel 20 is connected to the indoor unit body 10 by screws (not shown). Specifically, as shown in FIG. 2, the decorative panel 20 is provided with a screw hole SH, and a screw penetrating the screw hole SH is screwed into a sheet metal member constituting the casing, whereby the decorative panel 20 is provided. 20 is connected to the indoor unit body 10.

As shown in FIG. 2, the decorative panel 20 has a lattice structure, and this lattice structure is opposed to the suction port of the indoor unit body 10, and the size of this lattice structure is that of the suction port of the indoor unit body 10. It is almost the same as the dimensions.

Further, the decorative panel 20 is assembled by a plurality of sub panels.

In the present embodiment, as shown in FIGS. 2 to 5C, the decorative panel 20 is assembled by a first sub-panel 21 and a second sub-panel 22 that can be connected (for example, joined together by engagement) and separated from each other. The first sub panel 21 has a U-shape, covers the first side surface, the second side surface, and the third side surface among the four side surfaces of the indoor unit body 10, and the second sub panel 22 has a planar shape, The fourth side surface is covered among the four side surfaces.

In addition, as shown in FIG. 2, the first sub-panel 21 has three flat plate portions respectively corresponding to the three side surfaces of the indoor unit body 10, the first side surface, the second side surface, and the third side surface. The three plate portions have substantially the same structure.

Further, as shown in FIG. 2, the second sub-panel 22 is composed of a plurality of portions, and the plurality of portions are joined by the engaging structure, thereby being pulled out from the fourth side surface of the indoor unit body 10. A hole TH through which the refrigerant pipe constituting the heat exchanger 12 passes is formed. Specifically, as shown in FIGS. 5A to 5C, the second sub-panel 22 includes a first portion 221 and a second portion 222, and the first portion 221 and the second portion 222 are joined by an engaging structure. By doing so, the hole TH through which the above-described refrigerant pipe passes is formed. More specifically, the first portion 221 includes a lattice portion 2211 and a joint portion 2212. The lattice portion 2211 and the joint portion 2212 are arranged along the X direction, and the lattice portion 2211 is connected to the indoor unit body 10 by screws (not shown), and the joint portion 2212 and the lattice portion 2211 are integrally formed. Further, the portion constituting the hole TH of the joint portion 2212 has a shape that matches the outer shape of the refrigerant pipe described above, and the lower portion of the joint portion 2212 adjacent to the lattice portion 2211 in FIG. Has a hole. 5C of the 2nd part 222 has the projection part engaged with the above-mentioned engagement hole, and the upper part of FIG. 5C which comprises the above-mentioned hole TH of the 2nd part 222 is the above-mentioned. 5C of the second portion 222 and the right portion of the second portion 222 in FIG. 5C engage with the first sub-panel 21 (refer to FIG. 6). The joint KK is formed on the side of the second sub-panel 22 facing the indoor unit main body 10 and is locked to the protrusion TT formed on the side of the first sub-panel 21 facing the indoor unit main body 10). . The joining portion 2212 and the second portion 222 are arranged substantially along the Z direction, and are joined to form a hole TH through which the above-described refrigerant pipe passes, a cable hole through which a cable or the like passes.

Here, although not shown, the first portion 221 of the second sub-panel 22 is also locked to the protrusion of the first sub-panel 21 by the engaging tool.

Hereinafter, an example of a method for joining the decorative panel 20 of the present embodiment will be described.

For example, first, the first portion 221 of the second sub-panel 22 is placed on the refrigerant pipe constituting the heat exchanger 12 drawn from the fourth side surface of the indoor unit body 10, and the first portion 221 is removed using screws. Fix to the casing of the indoor unit body 10.

Subsequently, the first sub-panel 21 and the first portion 221 of the second sub-panel 22 are joined, and each plate portion of the first sub-panel 21 is fixed to the casing of the indoor unit body 10 using screws.

Finally, the second portion 222 of the second sub-panel 22 is mounted in combination. Thereby, the assembly of the decorative panel 20 is completed.

In the present embodiment, by driving and driving the axial fan 11, external air is sucked into the indoor unit body 10 from the four side surfaces of the indoor unit body 10 via the decorative panel, and the air is After passing through the heat exchanger 12 installed along the four side surfaces of the indoor unit body 10, it can be blown out from the bottom surface of the indoor unit body 10 toward the air-conditioning target space.

According to the air conditioning indoor unit 1 of the present embodiment, the decorative panel 20 is installed on the outer surface of the indoor unit body 10 so that at least a part of the decorative panel 20 surrounds the indoor unit body 10. The influence of external dust on members such as the axial fan 11 and the heat exchanger 12 provided in the indoor unit body 10 can be reduced. In particular, when the air conditioning indoor unit 1 is applied to a place where no suspended ceiling is installed, the operating efficiency of the air conditioning indoor unit 1 is reduced due to dust accumulated in members such as the axial fan 11 and the heat exchanger 12. In addition, the members such as the axial fan 11 and the heat exchanger 12 are completely exposed to the outside, so that the appearance can be prevented from being affected. In addition, by biting the axial fan 11, the heat exchanger 12 or the like where insects, mice, etc. are exposed to the outside, or when an external object hits the axial fan 11, the heat exchanger 12 or the like exposed to the outside, It can prevent that the lifetime of a member becomes short.

Further, according to the air conditioning indoor unit 1 of the present embodiment, the plurality of side surfaces of the indoor unit body 10 have suction ports, and the heat exchanger 12 is installed along the side surface of the indoor unit body 10 to be an axial flow fan. 11 is useful for realizing an increase in overall air handling capacity and a reduction in size. Even in such a case, the effect of external dust on the heat exchange efficiency of the heat exchanger 12 can be reduced using the decorative panel 20.

In addition, according to the air conditioning indoor unit 1 of the present embodiment, the decorative panel 20 is assembled by a plurality of sub-panels, so that the decorative panel 20 can be easily transported and processed, the processing can be simplified, and the assembly is free. become.

Moreover, according to the air conditioning indoor unit 1 of the present embodiment, the decorative panel 20 includes the first sub-panel 21 and the second sub-panel 22, and the first sub-panel 21 and the second sub-panel 22 cover the four side surfaces of the indoor unit body 10. Therefore, the influence of external dust on the members such as the axial fan 11 and the heat exchanger 12 provided in the indoor unit body 10 can be reduced more effectively, and the attachment / detachment can be simplified.

In addition, according to the air conditioning indoor unit 1 of the present embodiment, the second sub-panel 22 is configured by a plurality of portions, and the plurality of portions are holes through which the refrigerant pipe drawn out from the side surface of the indoor unit body 10 by joining passes. Since TH is formed, even if it is necessary to penetrate the refrigerant pipe through the decorative panel 20 at the time of attachment, the operation can be easily performed. Specifically, after placing the first portion 221 of the second sub-panel 22 on the refrigerant pipe (from the Z1 direction side in the figure), the second sub-panel 22 from the side facing the first portion 221 (Z2 direction side in the figure). Since the structure in which the refrigerant pipe penetrates the decorative panel 20 can be formed only by mounting the second portion 222 in combination, the operation can be easily performed.

Further, according to the air conditioning indoor unit 1 of the present embodiment, in the second sub-panel 22, the first portion 221 has the joint portion 2212, and the portion constituting the hole TH of the joint portion 2212 is compatible with the outer shape of the refrigerant pipe. Therefore, at the time of attachment, the joint portion 2212 of the first portion 221 can be relatively stably placed on the refrigerant pipe. Thereby, the 2nd subpanel 22 can be fixed beforehand and can become independent, and attachment can be performed easily.

Further, according to the air conditioning indoor unit 1 of the present embodiment, since the filter 13 is provided between the heat exchanger 12 and the decorative panel 20, heat exchange in which external dust is provided in the indoor unit body 10. The effect on the heat exchange efficiency of the vessel 12 can be further reduced, and the filter 13 can be used to protect the member located inside the filter 13.

Further, according to the air conditioning indoor unit 1 of the present embodiment, since the decorative panel 20 has a lattice structure, even if the interval between the decorative panel 20 and the outer surface of the indoor unit body 10 is relatively narrow, the wind panel can be easily Can be sent to the indoor unit main body 10 via the lattice structure of the decorative panel 20. That is, it contributes to reducing the overall dimensions.

Further, according to the air conditioning indoor unit 1 of the present embodiment, the decorative panel 20 is connected to the sheet metal member of the indoor unit body 10 by screws, so that the decorative panel 20 can be decorated even if the decorative panel 20 is manufactured from a material with relatively low hardness. The stability of the panel 20 in the attached state can be increased.

Moreover, according to the air conditioning indoor unit 1 of the present embodiment, since the plurality of parts of the second sub-panel 22 are joined by the engagement structure, the plurality of parts can be easily assembled and separated.

In addition, according to the air conditioning indoor unit 1 of the present embodiment, the decorative panel 20 and the outer surface of the indoor unit body 10 are spaced apart, so that the wind is between the decorative panel 20 and the outer surface of the indoor unit body 10. It can be sent toward the indoor unit body 10 via the gap. Therefore, it contributes to reducing pressure loss and improving ventilation efficiency.

In an air conditioning indoor unit, it is preferable that a blowout panel is installed on the bottom surface of the indoor unit body. Thereby, in addition to improving the aesthetics, it is possible to guide the airflow blown toward the air-conditioning target space using the blowout panel, and to enhance the comfort of the person in the air-conditioning target space. In particular, in such a case, the blowout panel can cover the entire decorative panel 20 when viewed along the Z direction, that is, the entire decorative panel 20 is within the range of the blowout panel when viewed along the Z direction. (The decorative panel 20 does not exceed the outer edge of the blowout panel). This contributes to ensuring the aesthetics of the entire air conditioning indoor unit.

As described above, the exemplary description has been made in association with the drawings. However, it is obvious that the embodiment of the air conditioning indoor unit is not limited by the above-described embodiment.

For example, in the above-described embodiment, the first sub-panel 21 has three flat plate portions respectively corresponding to the three side surfaces of the first side surface, the second side surface, and the third side surface of the indoor unit body 10. The three plate portions had substantially the same structure. However, the present invention is not limited to this, and the structures of the three plate portions may be different from each other.

In the above-described embodiment, the second sub-panel 22 is composed of a plurality of parts. However, the present invention is not limited to this, and the second sub-panel 22 may be formed as an integrally configured member.

In the above-described embodiment, the decorative panel 20 is assembled by the first sub-panel 21 and the second sub-panel 22 that can be separated. The first sub-panel 21 has a U-shape, and the second sub-panel 22 has a planar shape. It was. However, the present invention is not limited to this, and a decorative panel as shown in FIGS. 7 and 8 may be adopted.

Specifically, in the example shown in FIG. 7, the decorative panel is configured by four sub-panels 21A to 24A that can be separated, and each of the four sub-panels 21A to 24A has a planar shape, and each indoor unit main body (not shown) It covers the four sides. Of the four sub-panels 21A to 24A, the sub-panel 21A is integrally formed with a cylindrical portion CPA. For example, by passing a duct through the cylindrical portion CPA and extending it to the outside, the outdoor air can be easily drawn into the air-conditioning indoor unit via the duct. The sub-panel 24A employs the same structure as the second sub-panel 22 described above.

In the example shown in FIG. 8 as well, the decorative panel is constituted by four sub-panels that can be separated (here, only two sub-panels of sub-panel 21B and sub-panel 24B are shown), and each of these four sub-panels has a planar shape. The four side surfaces of the indoor unit main body (not shown) are respectively covered. Of the four sub-panels described above, the sub-panel 21B is integrally formed with the cylindrical portion CPB. For example, one end of a duct communicating with the outside is inserted into or inserted into the cylindrical portion CPB, so that outdoor air can be easily drawn into the air conditioning indoor unit via the duct. The sub panel 24B employs the same structure as that of the second sub panel 22 described above.

Further, when the decorative panel shown in FIG. 7 and FIG. 8 is adopted, for example, it can be assembled as follows. First, a portion corresponding to the above-described first portion 221 of the fourth sub-panels 24A and 24B is placed on the refrigerant pipe constituting the heat exchanger drawn out from the side surface of the indoor unit main body, and the portion is used using screws. Is fixed to the casing of the indoor unit body. Subsequently, the remaining sub-panels are joined in the clockwise or counterclockwise order when viewed along the Z direction in FIG. 1, and these sub-panels are fixed to the casing of the indoor unit body using screws. Finally, the fourth sub-panels 24A and 24B are attached in combination with portions corresponding to the second portion 222 described above. Thereby, the assembly of the decorative panel is completed.

In the above-described embodiment, one of the three plate portions of the first sub-panel 21 may be provided with a wind guide funnel. A large opening at one end of the wind guide funnel faces the plate part (the size and shape of the opening can be provided, for example, basically matching the size and shape of the plate part), and the large opening The edge of the abuts against the plate portion. A small opening at the other end of the wind guide funnel is connected to the duct. In such a case, of course, the plate portion covered with the wind guide funnel of the first sub-panel 21 may be omitted.

Further, the decorative panel 20 may be formed by engaging two sub-panels each having a semicircular shape when viewed in the vertical direction (Z direction in FIG. 1). Alternatively, the decorative panel 20 is formed by engaging three or more sub-panels each having an arc shape (may be a superior arc or an inferior arc) when viewed along the vertical direction (the Z direction in FIG. 1). Alternatively, the decorative panel 20 may be formed by engaging a plurality of sub-panels each having a shape other than a semicircular shape and an arc shape when viewed in the vertical direction (Z direction in FIG. 1). .

Also, depending on the situation, the decorative panel may be formed as an integrally configured member.

Moreover, in the above-described embodiment, the plurality of side surfaces of the indoor unit body 10 have suction ports. However, the present invention is not limited to this, and a suction port may be provided on only one side surface of the indoor unit body 10 depending on the situation.

In the above-described embodiment, the decorative panel 20 has the hole TH through which the refrigerant pipe of the air conditioning indoor unit passes. However, the present invention is not limited to this, and the decorative panel may not have a hole through which the refrigerant pipe passes.

Further, in the above-described embodiment, the decorative panel 20 is connected to the indoor unit body 10 by screws (not shown). However, the present invention is not limited to this, and the decorative panel may be connected to the indoor unit main body by an engagement structure, for example.

In the above-described embodiment, the blowout panel is installed on the bottom surface of the indoor unit body 10. However, the present invention is not limited to this, and the indoor unit main body may be connected to the duct after being connected to the duct depending on the situation, or the duct and the duct panel may be omitted.

In the embodiment described above, the decorative panel 20 has a lattice structure. However, the present invention is not limited to this, and the decorative panel 20 may not have a lattice structure. In such a case, it is preferable to set a relatively large gap between the decorative panel 20 and the outer surface of the indoor unit body 10.

In the above-described embodiment, the filter 13 is provided in the indoor unit body 10, and the filter 13 is located between the heat exchanger 12 and the decorative panel 20. However, the present invention is not limited to this, and the installation position of the filter may be appropriately changed as necessary, and the filter may be omitted depending on the situation.

DESCRIPTION OF SYMBOLS 1 Air conditioning indoor unit 10 Indoor unit main body 11 Axial fan 12 Heat exchanger 13 Filter 20 Decoration panel 21 1st sub panel 22 2nd sub panel 221 1st part 2211 Lattice part 2212 Joint part 222 2nd part TH Hole SH Screw hole KK Engagement Joint TT Projection 21A-24A Subpanel 21B, 24B Subpanel CPA Tubular part CPB Tubular part

Claims (16)

An indoor unit main body (10) in which a suction port is formed on a side surface and an air outlet is formed on a bottom surface;
A decorative panel (20);
With
The indoor unit body (10) includes an axial fan (11) and a heat exchanger (12) surrounding the axial fan (11).
The decorative panel (20) is installed on the outer surface of the indoor unit body (10) so that at least a part thereof surrounds the indoor unit body (10).
Air conditioning indoor unit (1). The indoor unit body (10) has a plurality of side surfaces,
In each of the side surfaces, the suction port is formed,
The heat exchanger (12) is installed along the side surface of the indoor unit body (10).
The air conditioning indoor unit according to claim 1. The decorative panel (20) is assembled by a plurality of sub-panels.
The air conditioning indoor unit according to claim 1 or 2. The plurality of sub-panels are a first sub-panel (21) and a second sub-panel (22) that can be separated,
The first sub-panel (21) has a U-shape and covers a first side surface, a second side surface, and a third side surface among the four side surfaces of the indoor unit body (10),
The second sub-panel (22) has a planar shape and covers a fourth side surface among the four side surfaces of the indoor unit body (10).
The air conditioning indoor unit according to claim 3. Refrigerant piping,
Further comprising
The refrigerant pipe is drawn from the fourth side surface of the indoor unit body (10) and penetrates the second sub-panel (22).
The second sub-panel (22) is composed of a plurality of parts,
The plurality of portions form a hole (TH) through which the refrigerant pipe passes by joining,
The air conditioning indoor unit according to claim 4. The plurality of sub-panels each have a planar shape and respectively cover a plurality of side surfaces of the indoor unit main body.
The air conditioning indoor unit according to claim 3. Refrigerant piping,
Further comprising
The refrigerant pipe is drawn out from one side surface of the indoor unit body (10) and penetrates the decorative panel,
Among the plurality of sub-panels, at least one sub-panel is composed of a plurality of portions,
The plurality of portions form a hole through which the refrigerant pipe passes by joining,
The air conditioning indoor unit according to claim 6. The indoor unit body (10) has a filter (13),
The filter is located between the heat exchanger and the decorative panel;
The air conditioning indoor unit according to any one of claims 1 to 7. The decorative panel (20) has a lattice structure,
The air conditioning indoor unit according to any one of claims 1 to 8. Refrigerant piping,
Further comprising
The refrigerant pipe is drawn out from one side surface of the indoor unit main body and penetrates the decorative panel.
The air conditioning indoor unit according to any one of claims 1 to 9. The indoor unit body (10) has a frame structure,
The decorative panel (20) is connected to a member constituting the frame structure by a connecting member.
The air conditioning indoor unit according to any one of claims 1 to 10. The plurality of portions are joined by an engagement structure;
The air conditioning indoor unit according to any one of claims 5 to 7. The decorative panel (20) and the outer surface of the indoor unit body (10) are spaced apart from each other.
The air conditioning indoor unit according to any one of claims 1 to 12. A blowout panel is installed on the bottom surface of the indoor unit body (10).
The air conditioning indoor unit according to any one of claims 1 to 13. The indoor unit body (10) has a casing,
The casing has a top plate, a bottom frame, and a plurality of support columns,
The support column connects the top plate and the bottom frame in a manner of intersecting the top plate and the bottom frame.
The air conditioning indoor unit according to any one of claims 1 to 14. The decorative panel has a duct connection;
The air conditioning indoor unit according to any one of claims 1 to 15.

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