air conditioning equipment

Abstract

An air conditioning device according to the present disclosure comprises: a blower device; an heat exchanger; a housing in which are formed an intake part for taking in air and a blowout part for blowing out air, and inside which the blower and the heat exchanger are housed; and at least one filter panel which has a filter, is disposed at the intake part, and filters air that flows into the housing. The intake part has a filter fixing part for fixing the at least one filter panel. The filter fixing part has a filter support part which is formed in a plate shape and a shaft part which passes through the filter support part, and which supports the filter support part such that the filter support part hangs down therefrom and is freely rotatable. An upper part of the filter support part is supported in a freely rotatable manner by the shaft part, and when the at least one filter panel is disposed at the intake part, the upper part faces each of the at least one filter panel from the outside of the housing. A lower part of the filter support part is formed to have a greater plate width than the upper part of the filter support part.

Description

[Technical Field]

[0001] The present disclosure relates to an air conditioner equipped with a filter in an air intake section. [Background technology]

[0002] Conventionally, air conditioners have a housing that forms the outer shell of the air conditioner, and a heat exchanger and a blower disposed inside the housing. The housing is formed with an intake section through which air flows from the outside of the housing into the inside when the blower is driven, and an outlet section through which air flows from the inside of the housing to the outside. In air conditioners, a filter is disposed in the air intake section, and the filter filters the air drawn into the housing (see, for example, Patent Document 1). By providing a filter in the intake section, the air conditioner can prevent dirt from accumulating inside the housing. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-227946 Summary of the Invention [Problem to be solved by the invention]

[0004] In an air conditioner equipped with a filter, as in Patent Document 1, a filter guide is provided to secure the filter to an intake panel that covers the intake portion from the outside of the heat exchanger or filter, and the filter is secured to these. Furthermore, in air conditioners equipped with filters, the filter is secured to the housing using fixing parts such as screws for each filter. Washing and cleaning the interior of an air conditioner is often time-consuming, and if the filter is not easy to install and remove, it is not easy to clean the heat exchanger located inside the air conditioner. Therefore, there is a demand for an air conditioner that allows the filter to be easily installed and removed from the housing, and allows the heat exchanger to be easily washed and cleaned.

[0005] The present disclosure is devised to solve the above-mentioned problems, and aims to provide an air conditioning apparatus in which a filter can be easily attached to and detached from a housing. [Means for solving the problem]

[0006] The air conditioning apparatus according to the present disclosure comprises a blower, a heat exchanger that exchanges heat between a refrigerant flowing inside and air supplied by the blower, a housing formed with an inlet section into which air is drawn and an outlet section from which air is blown out and in which the blower and heat exchanger are housed, and at least one filter panel that has a filter and is disposed in the inlet section to filter air flowing into the housing, the inlet section having a filter fixing section for fixing the at least one filter panel, the filter fixing section having a filter support section formed in a plate shape and a shaft section that passes through the filter support section and supports the filter support section so as to be suspendable and rotatable, the upper part of the filter support section being rotatably supported by the shaft section, and when at least one filter panel is disposed in the inlet section, the filter support section is suspended from the shaft section by its own weight and faces all of the at least one filter panel from the outside of the housing, the lower part of the filter support section being formed with a plate width greater than the upper part of the filter support section The suction portion is a part of the wall that constitutes the suction portion, and has an open tip portion formed in a cylindrical shape with a rising edge around the hole. The open tip portion is inserted into an opening formed in the filter support portion, and the shaft portion is inserted into and fixed to the hole at the tip of the open tip portion. It is something. [Effects of the Invention]

[0007] According to the present disclosure, an air conditioning apparatus includes at least one filter panel having a filter, which is disposed in an intake section and filters air flowing into the housing. The intake section also includes a filter fixing section for fixing at least one filter panel. The filter support section of the filter fixing section is suspended by a shaft, and the upper portion of the filter support section is rotatably supported by the shaft. When at least one filter panel is disposed in the intake section, the filter support section of the filter fixing section faces all of the at least one filter panel from the outside of the housing. The lower portion of the filter support section is formed with a wider plate width than the upper portion of the filter support section. In the air conditioning apparatus, the lower portion of the filter support section is heavy, and the weight of the filter support section positions the filter support section in a position facing the filter panel. When disposing the filter panel in the intake section, a user does not need to fix the filter panel to the intake section of the housing with fasteners such as screws. Furthermore, a user can attach and remove the filter panel simply by rotating the filter support section. This allows a user to easily attach and remove the filter to and from the housing. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is an external perspective view of an air conditioning apparatus according to an embodiment, as viewed from the front side. [Figure 2] 1 is an external perspective view of an air conditioning apparatus according to an embodiment with an intake panel removed. [Figure 3] 1 is a perspective view showing a part of the interior of an air conditioning apparatus according to an embodiment. [Figure 4] 1 is a side view showing the inside of an air conditioning apparatus according to an embodiment. [Figure 5] 1 is an external perspective view of an air conditioning apparatus according to an embodiment with a filter panel removed. [Figure 6] FIG. 2 is a schematic diagram conceptually showing a vertical cross section of an upper frame portion. [Figure 7]FIG. 2 is a partial enlarged view of a lower frame portion of the housing. [Figure 8] FIG. 2 is a schematic side view of a lower frame portion of the housing. [Figure 9] FIG. 2 is a schematic diagram conceptually showing a cross section of the left frame portion. [Figure 10] FIG. 10 is a schematic diagram conceptually showing a cross section of the right frame portion. [Figure 11] FIG. 2 is a perspective view of a filter fixing portion of the air conditioning apparatus according to the embodiment. [Figure 12] 10A and 10B are plan views showing other examples of the shape of the filter fixing portion as viewed in the axial direction of the shaft portion. [Figure 13] FIG. 5 is an enlarged schematic diagram of part A of the air conditioning apparatus shown in FIG. [Figure 14] 14 is a schematic view of the filter fixing part shown in FIG. 13 as viewed in the axial direction of the shaft part. FIG. [Figure 15] 14 is another schematic view of the filter fixing part shown in FIG. 13 as viewed in the axial direction of the shaft part. FIG. [Figure 16] FIG. 2 is a perspective view of an extension portion of the air conditioning apparatus according to the embodiment. [Figure 17] 5 is an enlarged schematic diagram of part A in FIG. 4 when an extension part is provided in the air conditioning apparatus according to the embodiment. FIG. [Figure 18] 18 is a schematic view of the filter fixing part shown in FIG. 17 as viewed in the axial direction of the shaft part. FIG. [Figure 19] 4 is an enlarged schematic view of a connection portion between a filter fixing portion and an opening frame portion of an air conditioning apparatus according to an embodiment. FIG. [Figure 20] 10 is a schematic diagram showing the rotation angle of a filter fixing part when a filter panel is attached or detached in an air conditioning apparatus according to an embodiment. FIG. [Figure 21] 10 is a schematic diagram showing the rotation angle of a filter fixing part when a filter panel is attached or detached in an air conditioning apparatus according to a comparative example. FIG. [Figure 22] 10 is a schematic diagram showing the rotation angle of a filter fixing part when a filter panel is attached or detached in an air conditioning apparatus according to a comparative example. FIG. [Figure 23]10 is a schematic diagram showing the rotation angle of a filter fixing part when attaching or detaching a filter panel in an air conditioning apparatus according to an embodiment. FIG. [Figure 24] 10 is a schematic diagram showing the rotation angle of a filter fixing part when a filter panel is attached or detached in an air conditioning apparatus according to a comparative example. FIG. [Figure 25] FIG. 2 is a plan view of a support pole of the air conditioning apparatus according to the embodiment. [Figure 26] FIG. 2 is a side view of a support pole of the air conditioning apparatus according to the embodiment. [Figure 27] FIG. 2 is an enlarged schematic view of the upper frame portion where the support column is installed. [Figure 28] FIG. 2 is an enlarged schematic view of the lower frame portion where the support column is installed. [Figure 29] FIG. 2 is a perspective view showing a mounting manner of a support part of the air conditioning apparatus according to the embodiment. [Figure 30] FIG. 2 is a perspective view showing a state in which a support part of the air conditioning apparatus according to the embodiment is attached. [Figure 31] FIG. 2 is a plan view of the support column attached to the upper and lower frame sections. [Figure 32] FIG. 10 is a perspective view of the support column attached to the upper frame portion. [Figure 33] FIG. 10 is a side view of the support column attached to the upper frame portion. [Figure 34] FIG. 2 is a perspective view of the support column attached to the lower frame portion. [Figure 35] FIG. 10 is a side view of the support column attached to the lower frame. [Figure 36] 10 is an enlarged schematic view of an air conditioning apparatus according to an embodiment in which an extension portion is provided on a support pole. FIG. [Figure 37] 37 is a schematic view of the filter fixing part shown in FIG. 36 as viewed in the axial direction of the shaft part. FIG. [Figure 38] 1 is a perspective view schematically showing a filter panel attached to a housing of an air conditioning apparatus according to an embodiment. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] An air conditioning apparatus according to an embodiment will be described below with reference to the drawings. Note that the configurations of the components shown in the specification are merely examples and are not limited to these descriptions. Furthermore, in the following drawings, including FIG. 1, the relative dimensional relationships and shapes of the components may differ from the actual ones. Furthermore, in the following drawings, identical symbols are used to denote identical or equivalent components, and this applies throughout the specification. Furthermore, to facilitate understanding, terms or orientations indicating directions are used as appropriate, but these notations are used for the convenience of explanation and do not limit the placement, direction, or orientation of devices, appliances, or parts. Examples of terms indicating directions or orientations include up, down, right, left, front, back, front, or back.

[0010] Embodiment [Overall configuration of the air conditioning device 100] Fig. 1 is an external perspective view of an air conditioning apparatus 100 according to an embodiment, as seen from the front side. Fig. 2 is an external perspective view of the air conditioning apparatus 100 according to an embodiment, with an intake panel 17 removed. The configuration of the air conditioning apparatus 100 will be described with reference to Figs. 1 and 2. Note that, as shown in Figs. 1 and 2, the X-axis direction is defined as the left-right direction, the Y-axis direction as the front-rear direction, and the Z-axis direction as the up-down direction. Furthermore, the left-right direction refers to the left and right of the housing 10 when a user views the housing 10 from the front side of the housing 10.

[0011] The air conditioner 100 is a device that conditions the air by adjusting the temperature and humidity of the air in the indoor space to be air-conditioned. The air conditioner 100 is a refrigeration cycle device that forms a refrigerant circuit in which a compressor, a condenser, an expansion valve, an evaporator, etc. are connected by piping, and the air conditioner 100 comprises an indoor unit that is installed indoors, and houses a heat exchanger 50 (see FIG. 3) that functions as a condenser or evaporator and a blower 60 (see FIG. 3) inside a housing 10.

[0012] 1 and 2, the air conditioning device 100 is depicted as a floor-standing device, but is not limited to a floor-standing device and may be a device of other installation configurations such as a ceiling-mounted device or a wall-mounted device. Note that the air conditioning device 100 is not limited to an indoor unit in a refrigeration cycle device, but may also be an outdoor unit that houses a heat exchanger 50 that functions as a condenser or evaporator and a blower 60 inside a housing 10 and is installed outdoors.

[0013] The air conditioning device 100 includes a blower 60, a heat exchanger 50, a housing 10 that houses the blower 60 and the heat exchanger 50, and at least one filter panel 70 that is disposed in the intake section 20 of the housing 10 and filters the air flowing into the housing 10.

[0014] (Housing 10) As shown in Figures 1 and 2, the air conditioning device 100 has a housing 10. The housing 10 is formed in a box shape, and a space is formed inside. As shown in Figures 1 and 2, the housing 10 is formed in a rectangular parallelepiped shape. Note that the housing 10 is not limited to a rectangular parallelepiped shape, and may be formed in other shapes, such as a polygonal pillar or a cylinder, as long as it is formed in a box shape with a space inside.

[0015] Housing 10 has an intake section 20 for sucking in air and an outlet section 30 for blowing out air, and accommodates a blower 60 (see FIG. 3) and a heat exchanger 50, which will be described later, inside. Housing 10 has a front panel 11 that forms the side wall surface on the front side, a rear panel 12 that forms the side wall surface on the rear side, a right side panel 13 that forms the side wall surface on the right side, and a left side panel 14 that forms the side wall surface on the left side. Housing 10 also has a top panel 16 that forms the ceiling wall surface, and a bottom panel 15 that forms the bottom wall surface.

[0016] The front panel 11 and the rear panel 12 are arranged to face each other in the front-to-back direction (Y-axis direction) of the housing 10. The right side panel 13 and the left side panel 14 are arranged to face each other in the left-to-right direction (X-axis direction) of the housing 10. The top panel 16 and the bottom panel 15 are arranged to face each other in the up-down direction (Z-axis direction) of the housing 10.

[0017] An intake section 20 is formed in front panel 11. The intake section 20 forms an opening formed in front panel 11 of housing 10, and forms a through-hole that connects the inside of housing 10 to the outside of housing 10. The intake section 20 is a portion through which air passes that is sucked from the outside of housing 10 into the inside of housing 10 by the air flow formed by blower device 60.

[0018] A filter panel 70 is disposed in the suction section 20. The detailed structures of the suction section 20 and the filter panel 70 will be described later. An suction panel 17 is attached to the suction section 20 from the outside of the housing 10 so as to cover the filter panel 70. A plurality of through holes 17a are formed in the suction panel 17 so that air can pass through the suction panel 17 when it is drawn into the housing 10 from the outside.

[0019] A blowout section 30 is formed on the top panel 16. The blowout section 30 is an opening formed in the top panel 16 of the housing 10, and forms a through-hole that connects the inside of the housing 10 to the outside of the housing 10. The blowout section 30 is a section through which air passes that is blown from the inside of the housing 10 to the outside of the housing 10 by the air flow formed by the blower device 60. The air blown out from the blowout section 30 has been adjusted in temperature and humidity by the heat exchanger 50.

[0020] 1 and 2, two blowout sections 30 are formed on the top panel 16. The number of blowout sections 30 formed on the top panel 16 is not limited to two, and may be one, or three or more. The location where the blowout section 30 is formed is not limited to the top panel 16. The blowout section 30 may be formed on the front panel 11, rear panel 12, right side panel 13, left side panel 14, bottom panel 15, or the like, as long as it is in a position where the air sucked in through the suction section 20 and heat exchanged in the heat exchanger 50 can be discharged.

[0021] Fig. 3 is a perspective view showing a part of the inside of the air conditioning apparatus 100 according to the embodiment. Fig. 4 is a side view showing the inside of the air conditioning apparatus 100 according to the embodiment. Fig. 3 shows the inside of the left side of the air conditioning apparatus 100. The inside of the right side of the air conditioning apparatus 100 is substantially similar to the inside of the left side. The internal configuration of the air conditioning apparatus 100 will be described using Figs. 3 and 4.

[0022] The air conditioning device 100 houses a heat exchanger 50 and a blower 60 inside a housing 10. The heat exchanger 50 is a device that exchanges heat between a refrigerant flowing inside the heat exchanger 50 and air supplied by the blower 60. The heat exchanger 50 functions as a condenser or an evaporator, and adjusts the temperature and humidity of the air drawn into the housing 10 from the intake section 20.

[0023] (heat exchanger 50) The heat exchanger 50 is, for example, a fin-and-tube heat exchanger, and is disposed at an angle inside the housing 10. The heat exchanger 50 is disposed at an angle in order to ensure an effective area for the heat exchange portion and to reduce the external dimensions of the housing 10, but at the same time, it also serves as a partition plate that guides air to always pass through the heat exchanger 50. A bottom panel 15 is provided below the heat exchanger 50. The bottom panel 15 serves as a drain pan to receive condensation water that drips from the heat exchanger 50.

[0024] (blower device 60) The blower 60 forms an air flow and supplies the air to the heat exchanger 50. The blower 60 is, for example, a centrifugal sirocco fan. The blower 60 has a plurality of blades 61 arranged in a cylindrical shape and a fan casing 62 formed in a spiral shape and covering the plurality of blades 61. The discharge section 62a of the fan casing 62 is connected to the blowing section 30 of the housing 10. The blower 60 draws air into the interior from the side of the fan casing 62, releases the drawn air to the outside by the action of centrifugal force of the plurality of blades 61, and discharges the air flowing inside the fan casing 62 from the discharge section 62a.

[0025] The air conditioning apparatus 100 is installed, for example, on the floor surface of a room in the space to be air-conditioned, and the blow-out unit 30 is connected to a blow-out duct (not shown) arranged on the ceiling of the room in the space to be air-conditioned. By driving the blower 60, the air conditioning apparatus 100 draws air from the space to be air-conditioned through the suction unit 20, passes it through the heat exchanger 50, and exchanges heat between the refrigerant inside the heat exchanger 50 and the air, and supplies the air to the space to be air-conditioned via the blow-out unit 30 and the blow-out duct. The air conditioning apparatus 100 conditions the space to be air-conditioned by circulating the air within the space to be air-conditioned. Note that the air conditioning apparatus 100 may also use a blow-out duct to condition a space in which the air conditioning apparatus 100 is not installed.

[0026] (Detailed structure of suction section 20) Fig. 5 is an external perspective view of the air conditioning apparatus 100 according to the embodiment with the filter panel 70 removed. The configuration of the intake section 20 will be described using Fig. 5 and Fig. 3. The intake section 20 includes an opening frame section 21 as shown in Fig. 5. The opening frame section 21 of the intake section 20 is the portion to which the filter panel 70 is attached.

[0027] The opening frame 21 is a frame member provided within the opening of the suction unit 20. When viewed from the front panel 11 side of the housing 10, the opening frame 21 is formed in the shape of a rectangular frame. The opening frame 21 is provided within the housing 10. The opening frame 21 is provided within the housing 10 relative to the suction panel 17. As shown in FIGS. 5 and 3, the opening frame 21 includes an upper frame 22 located at the upper edge of the suction unit 20, a lower frame 23 located at the lower edge of the suction unit 20, a left frame 24 located at the left edge of the suction unit 20, and a right frame 25 located at the right edge of the suction unit 20. The opening frame 21 may also include support columns 90 and extensions 40 (see FIG. 17), which will be described later.

[0028] FIG. 6 is a schematic diagram conceptually showing a vertical cross section of upper frame portion 22. Upper frame portion 22 will be described with reference to FIG. 6 and FIG. 3. Upper frame portion 22 is a member that is elongated in the left-right direction (X-axis direction) of housing 10. Upper frame portion 22 is a member that forms the upper part of opening frame portion 21. Upper frame portion 22 has upper frame front surface portion 22a, upper frame top surface portion 22b, upper frame bottom surface portion 22c, and upper frame protruding wall portion 22d.

[0029] Upper frame front surface portion 22a is a wall portion that forms a wall facing in the front-to-rear direction (Y-axis direction) of housing 10. Upper frame front surface portion 22a is a wall portion that is located on the front side of housing 10, and is a wall portion that faces suction panel 17 when suction panel 17 is attached to housing 10. Upper frame front surface portion 22a is a wall portion that extends in the left-to-right direction (X-axis direction) of housing 10, and also extends in the up-and-down direction (Z-axis direction) of housing 10.

[0030] The upper frame top surface portion 22b is a wall portion that extends in the left-right direction (X-axis direction) of the housing 10 along the upper edge portion of the upper frame front surface portion 22a, and is also a wall portion that is formed to extend in the front-to-back direction (Y-axis direction) of the housing 10 from the upper frame front surface portion 22a toward the inside of the housing 10.

[0031] Upper frame bottom surface portion 22c is a wall portion provided so as to extend in the left-right direction (X-axis direction) of housing 10 along the lower edge of upper frame front surface portion 22a, and is also a wall portion formed so as to extend in the front-rear direction (Y-axis direction) of housing 10 from upper frame front surface portion 22a toward the inside of housing 10. When filter panel 70 is attached to housing 10, upper frame bottom surface portion 22c faces a panel upper wall portion 70b (see FIG. 38) of filter panel 70, which will be described later. Upper frame bottom surface portion 22c is a wall portion provided between upper frame protruding wall portion 22d and upper frame front surface portion 22a, and forms a step between upper frame protruding wall portion 22d and upper frame front surface portion 22a.

[0032] Upper frame bottom surface portion 22c and upper frame top surface portion 22b are formed to face each other in the vertical direction (Z-axis direction) of housing 10. The vertical cross-sectional shape of upper frame front surface portion 22a, upper frame bottom surface portion 22c, and upper frame top surface portion 22b is formed into a U-shape tilted at 90 degrees, as shown in FIG.

[0033] Upper frame protruding wall portion 22d is a wall portion that protrudes downward from upper frame bottom surface portion 22c. Upper frame protruding wall portion 22d is a wall portion that forms a wall facing the front-to-rear direction of housing 10, and is a wall portion that faces filter panel 70 in the front-to-rear direction (Y-axis direction) of housing 10 when filter panel 70 is attached to housing 10. More specifically, upper frame protruding wall portion 22d is a wall portion that faces filter frame 71 of filter panel 70 in the front-to-rear direction (Y-axis direction) of housing 10 when filter panel 70 is attached to housing 10.

[0034] Upper frame protruding wall portion 22d is provided on upper frame bottom surface portion 22c along an end portion of upper frame bottom surface portion 22c located on the opposite side from upper frame front surface portion 22a. Upper frame protruding wall portion 22d is a wall portion extending in the left-right direction (X-axis direction) of housing 10, and also in the up-down direction (Z-axis direction) of housing 10. Upper frame protruding wall portion 22d is located on the inner side of housing 10 with respect to upper frame front surface portion 22a.

[0035] FIG. 7 is a partially enlarged view of the lower frame portion 23 of the housing 10. FIG. 8 is a schematic side view of the lower frame portion 23 of the housing 10. The lower frame portion 23 will be described using FIG. 7, FIG. 8, and FIG. 3. The lower frame portion 23 is a member that is elongated in the left-right direction (X-axis direction) of the housing 10. The lower frame portion 23 is a member that forms the lower part of the opening frame portion 21. The lower frame portion 23 has a lower frame bottom surface portion 23a, a lower frame front wall portion 23b, and a lower frame protruding wall portion 23c.

[0036] The lower frame bottom surface portion 23a is a plate-shaped member that extends in the left-right direction (X-axis direction) of the housing 10 and in the front-rear direction (Y-axis direction) of the housing 10.

[0037] Lower frame bottom surface portion 23a is a portion on which filter panel 70 is placed when filter panel 70 is attached to housing 10. When filter panel 70 is attached to housing 10, lower frame bottom surface portion 23a abuts against a panel bottom wall portion 70e (see FIG. 38) of filter panel 70, which will be described later.

[0038] The lower frame front wall 23b is a wall that protrudes upward from the lower frame bottom surface 23a. The lower frame front wall 23b is a wall that rises from the end of the front surface of the lower frame bottom surface 23a. The lower frame front wall 23b is inclined with respect to the lower frame bottom surface 23a, with one surface facing the outside of the housing 10 and downward of the housing 10, and the other surface facing the inside of the housing 10 and upward of the housing 10.

[0039] Lower frame front wall portion 23b is provided on lower frame bottom portion 23a along an end portion of lower frame bottom portion 23a located opposite lower frame protruding wall portion 23c. Lower frame front wall portion 23b is a wall portion extending in the left-right direction (X-axis direction) of housing 10, and also in the up-down direction (Z-axis direction) and front-rear direction (Y-axis direction) of housing 10. Lower frame front wall portion 23b is located on the outer side of housing 10 relative to lower frame protruding wall portion 23c.

[0040] Lower frame front wall portion 23b is a wall portion located in front of filter panel 70 in the front-to-rear direction (Y-axis direction) of housing 10 when filter panel 70 is attached to housing 10. Because lower frame front wall portion 23b is inclined with respect to lower frame bottom surface portion 23a, it is easier for a user to install filter panel 70 when placing filter panel 70 on lower frame bottom surface portion 23a compared to when lower frame front wall portion 23b is perpendicular to lower frame bottom surface portion 23a.

[0041] The lower frame protruding wall portion 23c is a wall portion that protrudes upward from the lower frame bottom surface portion 23a. The lower frame protruding wall portion 23c is a wall portion that forms a wall facing the front-rear direction of the housing 10, and is a wall portion that faces the filter panel 70 in the front-rear direction (Y-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10. More specifically, the lower frame protruding wall portion 23c is a wall portion that faces the filter frame 71 of the filter panel 70 in the front-rear direction (Y-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10.

[0042] Lower frame protruding wall portion 23c is provided on lower frame bottom surface portion 23a along an end portion of lower frame bottom surface portion 23a located on the opposite side from lower frame front wall portion 23b. Lower frame protruding wall portion 23c is a wall portion extending in the left-right direction (X-axis direction) of housing 10, and also in the up-down direction (Z-axis direction) of housing 10. Lower frame protruding wall portion 23c is located on the inner side of housing 10 relative to lower frame front wall portion 23b.

[0043] Fig. 9 is a schematic diagram conceptually showing a cross section of the left frame portion 24. The left frame portion 24 will be described using Fig. 9 and Fig. 3. The left frame portion 24 is a member that is elongated in the vertical direction (Z-axis direction) of the housing 10. The left frame portion 24 is a member that constitutes the left side portion of the opening frame portion 21. The left frame portion 24 has a left frame front surface portion 24a, a left frame side wall portion 24b, and a left frame protruding wall portion 24c.

[0044] The left frame front surface portion 24a is a wall portion that forms a wall facing in the front-rear direction (Y-axis direction) of the housing 10. The left frame front surface portion 24a is a wall portion that is located on the front side of the housing 10, and is a wall portion that faces the suction panel 17 when the suction panel 17 is attached to the housing 10. The left frame front surface portion 24a is a wall portion that extends in the left-right direction (X-axis direction) of the housing 10, and also extends in the up-down direction (Z-axis direction) of the housing 10.

[0045] The left frame side wall 24b is a wall provided so as to extend in the up-down direction (Z-axis direction) of the housing 10 along the right side edge of the left frame front surface 24a, and is a wall formed so as to extend in the front-rear direction (Y-axis direction) of the housing 10 from the left frame front surface 24a toward the inside of the housing 10. The cross-sectional shapes of the left frame front surface 24a and the left frame side wall 24b are formed in an L-shape when viewed from the top of the housing 10 with the left side of the housing 10 facing upward.

[0046] Left frame side wall 24b is a wall that forms a wall facing the left-right direction (X-axis direction) of housing 10, and is a wall that faces filter panel 70 in the left-right direction (X-axis direction) of housing 10 when filter panel 70 is attached to housing 10. More specifically, left frame side wall 24b is a wall that faces filter frame 71 of filter panel 70 in the left-right direction (X-axis direction) of housing 10 when filter panel 70 is attached to housing 10. Left frame side wall 24b faces a panel left wall 70c (see FIG. 38 ) of filter panel 70, which will be described later, of filter panel 70 when filter panel 70 is attached to housing 10.

[0047] The left frame protruding wall 24c is a wall that protrudes laterally to the right from the left frame side wall 24b. The left frame protruding wall 24c is a wall that forms a wall facing the front-to-rear direction (Y-axis direction) of the housing 10, and is a wall that faces the filter panel 70 in the front-to-rear direction (Y-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10. More specifically, the left frame protruding wall 24c is a wall that faces the filter frame 71 of the filter panel 70 in the front-to-rear direction (Y-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10.

[0048] The left frame protruding wall 24c is provided on the left frame side wall 24b along an end of the left frame side wall 24b located on the opposite side from the left frame front surface 24a. The left frame protruding wall 24c is a wall that extends in the left-right direction (X-axis direction) of the housing 10 and also in the up-down direction (Z-axis direction) of the housing 10.

[0049] Left frame protruding wall portion 24c is located on the inner side of housing 10 relative to left frame front surface portion 24a. Left frame side wall portion 24b is a wall portion provided between left frame front surface portion 24a and left frame protruding wall portion 24c, and forms a step between left frame front surface portion 24a and left frame protruding wall portion 24c. The cross-sectional shapes of left frame protruding wall portion 24c and left frame side wall portion 24b are formed in an L-shape when viewed from the top of housing 10 with the right side of housing 10 facing upward.

[0050] FIG. 10 is a schematic diagram conceptually showing a cross section of right frame portion 25. Right frame portion 25 will be described using FIG. 10. Right frame portion 25 is a member that is elongated in the vertical direction (Z-axis direction) of housing 10. Right frame portion 25 is a member that constitutes the right side portion of opening frame portion 21. Right frame portion 25 has right frame front portion 25a, right frame side wall portion 25b, and right frame protruding wall portion 25c.

[0051] The right frame front surface portion 25a is a wall portion that forms a wall facing in the front-rear direction (Y-axis direction) of the housing 10. The right frame front surface portion 25a is a wall portion that is located on the front side of the housing 10, and is a wall portion that faces the suction panel 17 when the suction panel 17 is attached to the housing 10. The right frame front surface portion 25a is a wall portion that extends in the left-right direction (X-axis direction) of the housing 10, and also extends in the up-down direction (Z-axis direction) of the housing 10.

[0052] Right frame side wall 25b is a wall provided so as to extend in the up-down direction (Z-axis direction) of housing 10 along the left side edge of right frame front surface 25a, and is a wall formed so as to extend in the front-rear direction (Y-axis direction) of housing 10 from right frame front surface 25a toward the inside of housing 10. The cross-sectional shapes of right frame front surface 25a and right frame side wall 25b are formed into an L-shape that is inverted left and right when viewed from the top of housing 10 with the right side of housing 10 facing upward.

[0053] Right frame sidewall 25b is a wall that forms a wall facing the left-right direction (X-axis direction) of housing 10, and is a wall that faces filter panel 70 in the left-right direction (X-axis direction) of housing 10 when filter panel 70 is attached to housing 10. More specifically, right frame sidewall 25b is a wall that faces filter frame 71 of filter panel 70 in the left-right direction (X-axis direction) of housing 10 when filter panel 70 is attached to housing 10. Right frame sidewall 25b faces a panel right wall 70d (see FIG. 38 ) of filter panel 70, which will be described later, of filter panel 70 when filter panel 70 is attached to housing 10.

[0054] The right frame protruding wall 25c is a wall that protrudes laterally to the left from the right frame side wall 25b. The right frame protruding wall 25c is a wall that forms a wall facing the front-to-rear direction (Y-axis direction) of the housing 10, and is a wall that faces the filter panel 70 in the front-to-rear direction (Y-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10. More specifically, the right frame protruding wall 25c is a wall that faces the filter frame 71 of the filter panel 70 in the front-to-rear direction (Y-axis direction) of the housing 10 when the filter panel 70 is attached to the housing 10.

[0055] Right frame protruding wall 25c is provided on right frame side wall 25b along an end of right frame side wall 25b located on the opposite side of right frame front surface 25a. Right frame protruding wall 25c is a wall extending in the left-right direction (X-axis direction) of housing 10 and also in the up-down direction (Z-axis direction) of housing 10.

[0056] Right frame protruding wall portion 25c is located on the inner side of housing 10 relative to right frame front surface portion 25a. Right frame side wall portion 25b is a wall portion provided between right frame front surface portion 25a and right frame protruding wall portion 25c, and forms a step between right frame front surface portion 25a and right frame protruding wall portion 25c. The cross-sectional shapes of right frame protruding wall portion 25c and right frame side wall portion 25b are formed into an L-shape that is inverted left and right when viewed from the top of housing 10 with the left side of housing 10 facing upward.

[0057] Fig. 11 is a perspective view of the filter fixing part 80 of the air conditioning apparatus 100 according to the embodiment. Fig. 12 is a plan view of another example shape of the filter fixing part 80, viewed in the axial direction of the shaft part 86. As shown in Figs. 2 to 5, the intake part 20 of the air conditioning apparatus 100 has the filter fixing part 80 that fixes the filter panel 70. The air conditioning apparatus 100 has the filter fixing part 80 as a movable part for fixing the filter panel 70. The filter fixing part 80 will be explained using Figs. 11 and 12.

[0058] The filter fixing portion 80 supports the filter panel 70 from the outside of the housing 10 so that the filter panel 70 does not fall outside the housing 10 when the filter panel 70 is installed in the opening frame portion 21 of the suction portion 20. The filter panel 70 is fixed to the opening frame portion 21 of the suction portion 20 by the filter fixing portion 80.

[0059] The filter fixing portion 80 has a filter support portion 81 formed in a plate shape, and a shaft portion 86 that passes through the filter support portion 81 and rotatably supports the filter support portion 81. The filter support portion 81 is a portion of the filter fixing portion 80 that supports the filter panel 70 from the outside of the housing 10 so that the filter panel 70 does not fall outside the housing 10 when the filter panel 70 is installed in the opening frame portion 21 of the suction portion 20. When at least one filter panel 70 is arranged in the suction portion 20, the filter support portion 81 faces all of the arranged filter panels 70 from the outside of the housing 10.

[0060] The filter support portion 81 is formed in a plate shape. The filter support portion 81 is, for example, a metal plate. Note that the filter support portion 81 is not limited to a metal plate and may be formed of other materials. An opening 84 is formed in the filter support portion 81. The opening 84 is a hole that passes through the filter support portion 81. A shaft portion 86 is inserted into the opening 84. The filter support portion 81 is rotatably supported at its upper portion by the shaft portion 86. The filter support portion 81 is suspended by the shaft portion 86.

[0061] The filter support part 81 is formed in a triangular shape when viewed in the axial direction of the shaft part 86. The filter support part 81 has an opening 84 formed at one vertex of the triangle. The shaft part 86 passes through the vertex of the triangular filter support part 81. The filter support part 81 is not limited to being formed in a triangular shape, and may be formed in other shapes. For example, as shown in FIG. 12, the filter support part 81 may be formed in a T-shape with the top and bottom directions reversed. As shown in FIGS. 11 and 12, the filter support part 81 is formed so that the lower end portion is larger than the upper end portion.

[0062] As shown in FIG. 11 , the width of the lower end 81a of the filter support part 81 in the left-right direction (X-axis direction) is referred to as a bottom end width W1, and the width of the opening 84 of the filter support part 81 in the left-right direction (X-axis direction) is referred to as a shaft width W2. The width of the upper end 81b of the filter support part 81 in the left-right direction (X-axis direction) is referred to as an upper end width W3. The filter support part 81 is formed so that the bottom end width W1 is larger than the shaft width W2 (bottom end width W1 > shaft width W2). The filter support part 81 is formed so that the bottom end width W1 is larger than the upper end width W3 (bottom end width W1 > upper end width W3). The filter support part 81 is formed so that the bottom of the filter support part 81 has a larger plate width than the top of the filter support part 81.

[0063] The opening 84 is formed at the apex of the triangle, and the filter support part 81 is formed so that its lower end portion is larger than its upper end portion. Therefore, the weight of the lower portion of the filter support part 81 relative to the shaft part 86 is heavier than the weight of the upper portion, and the filter support part 81 is supported by the shaft part 86 so that the lower end 81a is always positioned lower than the upper end 81b due to gravity. The filter support part 81 can be rotated around the shaft part 86, but if, for example, the user releases the rotated filter support part 81, the filter support part 81 will stop in a state where the lower end 81a is positioned below the shaft part 86.

[0064] The filter support portion 81 has a support plate portion 82 and a protrusion portion 83. The support plate portion 82 is formed in a plate shape. The support plate portion 82 is formed, for example, in a flat plate shape, but may have uneven portions. The support plate portion 82 is a portion that faces the filter panel 70 from the outside of the filter panel 70 when the filter panel 70 is installed in the opening frame portion 21 of the suction portion 20 and the user is not rotating the filter support portion 81. The support plate portion 82 is a portion that supports the filter panel 70 from the outside of the filter panel 70 when the filter support portion 81 is suspended from the shaft portion 86.

[0065] The protruding portion 83 is a portion that protrudes from the support plate portion 82 in the axial direction of the shaft portion 86. The protruding portion 83 is provided so as to extend along the lower end portion 81a. The protruding portion 83 is provided so as to protrude toward the outside of the housing 10. The protruding portion 83 is provided on the surface opposite to the surface that faces the filter panel 70 when the filter panel 70 is installed in the opening frame portion 21 of the suction portion 20. The protruding portion 83 is formed, for example, by being bent relative to the support plate portion 82. Note that the protruding portion 83 is not an essential component of the filter support portion 81. The filter support portion 81 may be formed only by the support plate portion 82, without having the protruding portion 83.

[0066] The filter support part 81 has the protrusion 83, which allows the user to grip the protrusion 83 and makes it easier for the user to rotate the filter support part 81 compared to when the filter support part 81 does not have the protrusion 83. Furthermore, the filter support part 81 has the protrusion 83, which makes the weight of the lower end part 81a heavier compared to when the filter support part 81 does not have the protrusion 83, so that even when the filter support part 81 is rotated, the lower end part 81a is more likely to return to a position below the shaft part 86. Furthermore, the filter support part 81 has the protrusion 83, which ensures the strength of the filter support part 81 compared to when the filter support part 81 does not have the protrusion 83.

[0067] The shaft 86 rotatably supports the filter support part 81. The shaft 86 fixes the filter support part 81 to the opening frame 21 of the suction part 20. The shaft 86 is, for example, a screw. Note that the shaft 86 is not limited to a screw, and may be, for example, a bolt and nut, or any other device that can rotatably support the filter support part 81. The shaft 86 may also be a shoulder screw.

[0068] The shaft portion 86 has a head portion 87 and a threaded portion 88. The head portion 87 is formed so that its diameter is larger than the diameter of the opening 84 so that the filter support portion 81 does not come off the shaft portion 86. The threaded portion 88 has a threaded portion and a spiral groove. The threaded portion 88 is screwed into the opening frame portion 21 and fixed. The diameter of the threaded portion 88 is smaller than the diameter of the opening 84.

[0069] Fig. 13 is a schematic diagram showing an enlarged view of part A of the air conditioning apparatus 100 shown in Fig. 4. Fig. 14 is a schematic diagram showing the filter fixing part 80 shown in Fig. 13 as viewed in the axial direction of the shaft part 86. As shown in Figs. 13 and 14, the filter fixing part 80 is attached to the opening frame part 21. For example, the filter fixing part 80 is attached to the upper frame part 22. More specifically, the shaft part 86 of the filter fixing part 80 is attached to the upper frame front surface part 22a of the upper frame part 22. The attachment position of the shaft part 86 is not limited to the upper frame front surface part 22a, and it may be attached to, for example, an extension part 40 (see Fig. 17) described below.

[0070] The filter fixing part 80 is formed to have a size that covers a part of the filter panel 70 when the filter support part 81 is suspended from the shaft part 86. As shown in Figures 13 and 14, the filter support part 81 of the filter fixing part 80 supports the filter panel 70 from the outside of the housing 10 so that the filter panel 70 does not fall outside the housing 10 when the filter panel 70 is installed in the opening frame part 21 of the suction part 20. The filter support part 81 of the filter fixing part 80 covers the filter panel 70 from the outside of the housing 10 (see Figure 4).

[0071] 13 and 14, the upper part of the filter panel 70 is fixed by a filter support part 81. In the example shown in Fig. 14, two filter panels 70 are installed in the opening frame part 21. When two filter panels 70 are installed in the opening frame part 21, the filter fixing part 80 fixes the upper corner parts of each filter panel 70. The filter fixing part 80 fixes the upper corner parts of each filter panel 70 with the lower and both side parts of the filter support part 81.

[0072] Even when two filter panels 70 are installed in the opening frame portion 21, the air conditioning device 100 does not need to have two filter fixing portions 80, and the two filter panels 70 can be fixed to the opening frame portion 21 using one filter fixing portion 80.

[0073] 15 is another schematic view of the filter fixing part 80 shown in FIG. 13 as viewed in the axial direction of the shaft part 86. In the example shown in FIG. 15, one filter panel 70 is installed in the opening frame part 21. When one filter panel 70 is installed in the opening frame 21, the filter fixing part 80 fixes the upper part of the filter panel 70. In the filter fixing part 80, the lower part of the filter support part 81 fixes the upper part of the filter panel 70.

[0074] Fig. 16 is a perspective view of the extension portion 40 of the air conditioning apparatus 100 according to the embodiment. Fig. 17 is an enlarged schematic view of part A in Fig. 4 when the extension portion 40 is provided in the air conditioning apparatus 100 according to the embodiment. Fig. 18 is a schematic view of the filter fixing portion 80 shown in Fig. 17 as viewed in the axial direction of the shaft portion 86. The opening frame portion 21 may include the extension portion 40.

[0075] The air conditioning apparatus 100 may have an extension portion 40 to which the filter fixing portion 80 is attached. The extension portion 40 is a component that is attached to the upper frame portion 22 or a support portion 90 described below. As shown in FIG. 16 , the extension portion 40 has a bridging portion 41, an inner wall portion 42, an outer wall portion 43, and a fixing member 45. The cross section of the extension portion 40 along the axial direction of the shaft portion 86 is formed in a U-shape.

[0076] The bridge portion 41 is formed in a flat plate shape. The bridge portion 41 is formed so as to extend in the front-rear direction (Y-axis direction) of the housing 10, that is, in the axial direction of the shaft portion 86. The bridge portion 41 is not limited to a flat plate shape as long as it is a member that extends in the front-rear direction (Y-axis direction) of the housing 10, and may be in another shape, such as a shape with concave and convex portions or a rod shape.

[0077] The inner wall 42 is a wall rising from an edge portion of the bridge portion 41, and is a wall portion located inside the housing 10 in the front-to-rear direction (Y-axis direction) of the housing 10. The inner wall 42 is formed to extend upward or downward relative to the bridge portion 41. As shown in FIGS. 17 and 18 , the inner wall 42 is fixed to the upper frame protruding wall portion 22d of the upper frame portion 22 by a fixing member 45. A through hole 42a into which the fixing member 45 is inserted is formed in the inner wall 42. Note that the fixing position of the inner wall 42 is not limited to the upper frame protruding wall portion 22d, and it may be fixed, for example, to a support portion 90 (see FIG. 36 ) described below.

[0078] The outer wall 43 is a wall rising from an edge portion of the bridge portion 41, and is a wall located on the outer side of the housing 10 in the front-to-rear direction (Y-axis direction) of the housing 10. The outer wall 43 is formed on the opposite side of the inner wall 42 across the bridge portion 41 in the front-to-rear direction (Y-axis direction) of the housing 10. The outer wall 43 is formed so as to extend upward or downward relative to the bridge portion 41. A filter fixing portion 80 is attached to the outer wall 43. More specifically, a through-hole 43a is formed in the outer wall 43, and a shaft portion 86 of the filter fixing portion 80 is fixed therein.

[0079] The fixing member 45 is a component that fixes the extension portion 40 to the upper frame portion 22 or the support portion 90 (described later). The fixing member 45 is, for example, a screw, but is not limited to a screw and may be other components such as a bolt and a nut. Furthermore, the method of fixing the extension portion 40 to the upper frame portion 22 or the support portion 90 (described later) may be welding or magnetic force. Note that although FIGS. 16 to 18 illustrate a method of fixing the inner wall portion 42 of the extension portion 40 to the upper frame portion 22, other methods may be used to fix the extension portion 40 to the upper frame portion 22. For example, the extension portion 40 may be fixed to the upper frame portion 22 by fixing the bridging portion 41 to the upper frame bottom surface portion 22c using the fixing member 45. Furthermore, the extension portion 40 may be fixed to the upper frame portion 22 by fixing the bridging portion 41 to the upper frame top surface portion 22b using the fixing member 45. In these cases, the extension portion 40 does not need to have the inner wall portion 42.

[0080] Fig. 19 is an enlarged schematic diagram of the connection portion between the filter fixing portion 80 and the opening frame portion 21 of the air conditioning apparatus 100 according to the embodiment. Fig. 19 is an enlarged diagram that schematically shows portion B of Fig. 13 or portion C of Fig. 17. The opening frame portion 21 has an opening tip portion 27. As shown in Fig. 13, when the filter fixing portion 80 is attached to the upper frame front surface portion 22a of the opening frame portion 21, the opening tip portion 27 is formed on the upper frame front surface portion 22a. Furthermore, as shown in Fig. 17, when the filter fixing portion 80 is attached to the extension portion 40 of the opening frame portion 21, the opening tip portion 27 is formed on the outer wall portion 43 of the extension portion 40.

[0081] Open tip 27 is the portion to which shaft 86 is screwed. Open tip 27 has been burred and formed into a flange shape. Open tip 27 is part of the wall that constitutes suction section 20, and is formed into a cylindrical shape with a raised area around the hole. At least a portion of open tip 27 is formed so that the opening diameter becomes smaller toward the tip of the opening.

[0082] As shown in Fig. 19, when the shaft portion 86 is screwed to the open tip portion 27, the open tip portion 27 is inserted into an opening 84 formed in the filter support portion 81 and is disposed inside the opening 84. The open tip portion 27 passes through the opening 84 and penetrates the filter support portion 81. The filter support portion 81 is supported by the shaft portion 86 via the open tip portion 27. That is, the open tip portion 27 is disposed between the filter support portion 81 and the shaft portion 86. The shaft portion 86 is inserted into and fixed to the hole 27a at the tip of the open tip portion 27. The shaft portion 86 is screwed to the open tip portion 27, which has been subjected to burring.

[0083] (Rotational movement of the filter fixing part 80) Fig. 20 is a schematic diagram showing the rotation angle of the filter fixing part 80 when attaching or detaching the filter panel 70 in the air conditioning apparatus 100 according to the embodiment. Fig. 21 is a schematic diagram showing the rotation angle of the filter fixing part 80L when attaching or detaching the filter panel 70 in the air conditioning apparatus according to the comparative example. Fig. 22 is a schematic diagram showing the rotation angle of the filter fixing part 80L when attaching or detaching the filter panel 70 in the air conditioning apparatus according to the comparative example. Figs. 20 to 22 show an embodiment in which the air conditioning apparatus 100 has two filter panels 70.

[0084] 20 to 22, when a user attaches two filter panels 70 to opening frame portion 21, the user attaches the filter panels 70 one by one. Furthermore, when a user removes two filter panels 70 from opening frame portion 21, the user removes the filter panels 70 one by one. In the following explanation, using FIGS. 20 to 22, the rotation of filter fixing portion 80 and the like when removing filter panel 70 is explained, but the same applies to the rotation of filter fixing portion 80 and the like when attaching filter panel 70.

[0085] As shown in FIG. 20 , if the filter support portion 81 of the filter fixing portion 80 is formed in a triangular shape, such that the lower end portion is larger than the upper end portion, the user can rotate the filter support portion 81 as follows. First, when removing the left filter panel 70, the user can rotate the filter support portion 81 counterclockwise by an angle α from the state in which the filter support portion 81 is hanging from the shaft portion 86 under its own weight. Next, when removing the right filter panel 70, the user can rotate the filter support portion 81 clockwise by an angle α from the state in which the filter support portion 81 is hanging from the shaft portion 86 under its own weight. The angle α is approximately 30 degrees, as shown in FIG. 20 .

[0086] As shown in FIG. 21 , when the filter support portion 81L of the filter fixing portion 80L according to the comparative example is formed in a shape such that the lower end portion and the upper end portion are the same size, such as a square, the user can rotate the filter support portion 81L as follows. First, when removing the left filter panel 70, the user can rotate the filter support portion 81 counterclockwise by an angle β1 from the state in which the filter support portion 81 is suspended by its own weight on the shaft portion 86. Next, when removing the right filter panel 70, the user can rotate the filter support portion 81 clockwise by an angle β1 from the state in which the filter support portion 81 is suspended by its own weight on the shaft portion 86. The angle β1 is equal to or greater than 90 degrees, as shown in FIG. 21 .

[0087] As shown in FIG. 22 , when the filter support portion 81L of the filter fixing portion 80L according to the comparative example is formed in a shape such that the lower end portion and the upper end portion are the same size, such as a vertically elongated rectangle, the user simply rotates the filter support portion 81L as follows. First, when removing the left filter panel 70, the user simply rotates the filter support portion 81 counterclockwise by an angle β2 from the state in which the filter support portion 81 is suspended by its own weight from the shaft portion 86. Next, when removing the right filter panel 70, the user simply rotates the filter support portion 81 clockwise by an angle β2 from the state in which the filter support portion 81 is suspended by its own weight from the shaft portion 86. The angle β2 is equal to or greater than 90 degrees, as shown in FIG. 22 .

[0088] As shown in Fig. 20, when removing the filter panel 70, the user rotates the filter support part 81 by an angle α. As shown in Figs. 21 and 22, when removing the filter panel 70, the user rotates the filter support part 81L by an angle β1 or an angle β2. As shown in Figs. 20 to 22, the angle α is smaller than the angles β1 and β2.

[0089] The filter support part 81, whose lower end portion is larger than the upper end portion, rotates by a smaller angle when attaching or detaching the filter panel 70, compared to the filter support part 81L, whose lower end portion and upper end portion are the same size. The filter fixing part 80 according to the embodiment can reduce the amount of movement of the filter support part 81 when attaching or detaching the filter panel 70, compared to the filter fixing part 80L according to the comparative example. Therefore, the air conditioning apparatus 100 can easily remove the filter panel 70 from the housing 10 and attach the filter panel 70 to the housing 10.

[0090] Figure 23 is a schematic diagram showing the rotation angle of the filter fixing part 80 when attaching or detaching the filter panel 70 in the air conditioning apparatus 100 according to the embodiment. Figure 24 is a schematic diagram showing the rotation angle of the filter fixing part 80L when attaching or detaching the filter panel 70 in the air conditioning apparatus 100 according to the comparative example. Figures 23 and 24 show an aspect in which the air conditioning apparatus 100 has one filter panel 70.

[0091] As shown in Fig. 23, the filter fixing part 80 requires the user to rotate the filter support part 81 by angle α1 when attaching or detaching the filter panel 70. As shown in Fig. 24, the filter fixing part 80L shown in the comparative example requires the user to rotate the filter support part 81L by angle β3 when attaching or detaching the filter panel 70. As shown in Figs. 23 and 24, the angle α1 is close to 90 degrees, and the angle β3 is close to 180 degrees. In other words, the angle α1 is smaller than the angle β3.

[0092] Even when the filter fixing part 80 fixes one filter panel 70, the filter fixing part 80 according to the embodiment can reduce the amount of movement of the filter support part 81 when attaching or detaching the filter panel 70, compared to the filter fixing part 80L according to the comparative example. Therefore, the air conditioning apparatus 100 can easily remove the filter panel 70 from the housing 10 and attach the filter panel 70 to the housing 10.

[0093] Fig. 25 is a plan view of the support pillar 90 of the air conditioning apparatus 100 according to the embodiment. Fig. 26 is a side view of the support pillar 90 of the air conditioning apparatus 100 according to the embodiment. Fig. 25 is a plan view of the support pillar 90 as seen in the front-to-rear direction (Y-axis direction) of the housing 10, and Fig. 26 is a side view of the support pillar 90 as seen in the left-to-right direction (X-axis direction) of the housing 10. The opening frame 21 may include the support pillar 90.

[0094] The support pillar 90 is a component attached to the upper frame 22 and the lower frame 23. The support pillar 90 is formed in a long column shape, bridges between the upper frame 22 and the lower frame 23, and is detachably disposed on the upper frame 22 and the lower frame 23. The support pillar 90 is a component that supports the filter panel 70 from inside the housing 10. The filter panel 70 is disposed between the filter fixing portion 80 and the support pillar 90 in the flow direction of air drawn into the suction portion 20.

[0095] When the two filter panels 70 are placed in the suction section 20, the support section 90 covers the space between the two filter panels 70 from inside the housing 10 when the suction section 20 is viewed from outside the housing 10, and supports the two filter panels 70 from inside the housing 10.

[0096] When the size of the housing 10 increases, multiple filter panels 70 may be used in the intake section 20 instead of a single large filter panel 70. When multiple filter panels 70 are arranged in the opening frame section 21 of the housing 10, the support section 90 covers the spaces between the filter panels 70 from the inside of the housing 10. When the air conditioning device 100 has the support section 90, the support section 90, filter panel 70, and filter fixing section 80 are arranged in this order from the inside to the outside of the housing 10 in the intake section 20, with each component arranged to face each other in the front-to-rear direction of the housing 10.

[0097] The support column 90 is a member that is elongated in the vertical direction (Z-axis direction) of the housing 10, and has a U-shaped cross section perpendicular to the longitudinal direction. The support column 90 has a front surface 91 formed in a plate shape, and a left side surface 92 and a right side surface 93 that extend from both sides of the front surface 91 toward the inside of the housing 10, face each other, and are formed longer than the front surface 91 along the longitudinal direction (Z-axis direction) of the support column 90. Note that the cross section perpendicular to the longitudinal direction of the support column 90 is U-shaped, but is not limited to this shape. For example, the support column 90 may be formed in a cylindrical shape with at least a hollow portion.

[0098] The front surface portion 91 is a wall portion that forms a wall facing the front-rear direction (Y-axis direction) of the housing 10. The front surface portion 91 is a wall portion located on the front side of the housing 10 and that faces the filter panel 70 when the filter panel 70 is attached to the housing 10. The front surface portion 91 is a wall portion that extends in the up-down direction (Z-axis direction) of the housing 10 and also in the left-right direction (X-axis direction) of the housing 10. The length of the front surface portion 91 in the longitudinal direction (Z-axis direction) is shorter than the length between the tip of the upper frame protruding wall portion 22d and the tip of the lower frame protruding wall portion 23c in the up-down direction (Z-axis direction) of the housing 10. The front surface portion 91 is formed in a flat plate shape, but may also be formed in a curved plate shape. For example, the front surface portion 91 may include a portion that is formed in an arc shape in a cross section perpendicular to the longitudinal direction (Z-axis direction).

[0099] The right side surface portion 93 is a wall portion provided so as to extend in the up-down direction (Z-axis direction) of the housing 10 along the right side edge portion of the front surface portion 91, and is also a wall portion formed so as to extend in the front-rear direction (Y-axis direction) of the housing 10 from the front surface portion 91 toward the inside of the housing 10. The left side surface portion 92 and the right side surface portion 93 are formed so as to face each other in the left-right direction (X-axis direction) of the housing 10.

[0100] As shown in FIGS. 25 and 26 , the right side surface portion 93 has a right-wall upper claw portion 95 and a right-wall lower claw portion 97. The right-wall upper claw portion 95 is provided on the upper end portion 90a of the support portion 90. The right-wall upper claw portion 95 is a portion that protrudes upward compared to the upper edge portion 91a of the front surface portion 91. The right-wall upper claw portion 95 is provided on the right side surface portion 93 so as to be biased toward the opposite side of the front surface portion 91. Therefore, in the front-to-rear direction (Y-axis direction) of the housing 10, a step is formed between the side edge of the right-wall upper claw portion 95 on the front surface portion 91 side and the plate surface of the front surface portion 91. In addition, in the up-down direction (Z-axis direction) of the housing 10, a step is formed between the upper end of the right-wall upper claw portion 95 and the upper edge portion 91a of the front surface portion 91.

[0101] The right-wall lower claw portion 97 is provided on the lower end portion 90b of the support portion 90. The right-wall lower claw portion 97 is a portion that protrudes downward compared to the lower edge portion 91b of the front surface portion 91. The right-wall lower claw portion 97 is provided on the right side surface portion 93 so as to be biased toward the opposite side of the front surface portion 91. Therefore, in the front-to-rear direction (Y-axis direction) of the housing 10, a step is formed between the side edge of the right-wall lower claw portion 97 on the front surface portion 91 side of the right side surface portion 93 and the plate surface of the front surface portion 91. In addition, in the up-down direction (Z-axis direction) of the housing 10, a step is formed between the lower end portion of the right-wall lower claw portion 97 and the lower edge portion 91b of the front surface portion 91.

[0102] The left side surface portion 92 has a structure symmetrical to the right side surface portion 93 shown in Fig. 26. The left side surface portion 92 is a wall portion provided so as to extend in the up-down direction (Z-axis direction) of the housing 10 along the left side edge portion of the front surface portion 91, and is also a wall portion formed so as to extend in the front-rear direction (Y-axis direction) of the housing 10 from the front surface portion 91 toward the inside of the housing 10.

[0103] As shown in FIG. 25 , the left side surface portion 92 has a left-wall upper claw portion 94 and a left-wall lower claw portion 96. The left-wall upper claw portion 94 is provided on the upper end portion 90a of the support portion 90. The left-wall upper claw portion 94 is a portion that protrudes upward compared to the upper edge portion 91a of the front surface portion 91. The left-wall upper claw portion 94 is provided on the left side surface portion 92 so as to be biased toward the opposite side of the front surface portion 91. Therefore, in the front-to-rear direction (Y-axis direction) of the housing 10, a step is formed between the side edge of the left-wall upper claw portion 94 on the front surface portion 91 side and the plate surface of the front surface portion 91. In addition, in the up-down direction (Z-axis direction) of the housing 10, a step is formed between the upper end of the left-wall upper claw portion 94 and the upper edge portion 91a of the front surface portion 91.

[0104] The left-side wall claw portion 96 is provided on the lower end portion 90b of the support portion 90. The left-side wall claw portion 96 is a portion that protrudes downward compared to the lower edge portion 91b of the front surface portion 91. The left-side wall claw portion 96 is provided on the left side surface portion 92 so as to be biased toward the opposite side of the front surface portion 91. Therefore, in the front-to-rear direction (Y-axis direction) of the housing 10, a step is formed between the side edge of the left-side wall claw portion 96 on the front surface portion 91 side and the plate surface of the front surface portion 91. In addition, in the up-down direction (Z-axis direction) of the housing 10, a step is formed between the lower end portion of the left-side wall claw portion 96 and the lower edge portion 91b of the front surface portion 91.

[0105] 25, upper claw portions 95a consisting of left-wall upper claw portions 94 and right-wall upper claw portions 95 are formed on the upper portions of the left side surface portion 92 and the right side surface portion 93, and protrude upward beyond the upper edge portion 91a of the front surface portion 91. In addition, lower claw portions 97a consisting of left-wall lower claw portions 96 and right-wall lower claw portions 97 are formed on the lower portions of the left side surface portion 92 and the right side surface portion 93, and protrude downward beyond the lower edge portion 91b of the front surface portion 91.

[0106] As shown in Figure 26, in the longitudinal direction (Z-axis direction) of the support part 90, the upper claw length T1, which is the length of the right wall upper claw part 95, is longer than the lower claw length T2, which is the length of the right wall lower claw part 97. The upper claw length T1 is the protruding length of the right wall upper claw part 95, and is the length between the position of the upper edge part 91a of the front surface part 91 in the longitudinal direction (Z-axis direction) of the support part 90 and the position of the upper end part of the right wall upper claw part 95. The lower claw length T2 is the protruding length of the right wall lower claw part 97, and is the length between the position of the lower edge part 91b of the front surface part 91 in the longitudinal direction (Z-axis direction) of the support part 90 and the position of the lower end part of the right wall lower claw part 97.

[0107] Similarly, in the longitudinal direction (Z-axis direction) of the support portion 90, the upper claw length T1, which is the length of the left-wall upper claw portion 94, is longer than the lower claw length T2, which is the length of the left-wall lower claw portion 96 (not shown). The upper claw length T1 is also the protruding length of the left-wall upper claw portion 94, and is the length between the position of the upper edge 91a of the front surface portion 91 in the longitudinal direction (Z-axis direction) of the support portion 90 and the position of the upper end of the left-wall upper claw portion 94. The lower claw length T2 is the protruding length of the left-wall lower claw portion 96, and is the length between the position of the lower edge 91b of the front surface portion 91 in the longitudinal direction (Z-axis direction) of the support portion 90 and the position of the lower end of the left-wall lower claw portion 96. The support portion 90 is formed so that the length of the upper claw portion 95a in the longitudinal direction (Z-axis direction) is longer than the length of the lower claw portion 97a.

[0108] In the longitudinal direction (Z-axis direction) of the support column 90, the length between the upper end of the left-wall upper claw portion 94 and the lower end of the left-wall lower claw portion 96 is longer than the length between the tip of the upper frame protruding wall portion 22d and the tip of the lower frame protruding wall portion 23c in the up-down direction (Z-axis direction) of the housing 10. Similarly, in the support column 90, the length between the upper end of the left-wall upper claw portion 94 and the lower end of the left-wall lower claw portion 96 is longer than the length between the tip of the upper frame protruding wall portion 22d and the tip of the lower frame protruding wall portion 23c in the up-down direction (Z-axis direction) of the housing 10.

[0109] Figure 27 is an enlarged schematic diagram of the upper frame portion 22 at a portion where the support column 90 is installed. When the opening frame portion 21 includes the support column 90, as shown in Figure 27, the upper frame protruding wall portion 22d of the upper frame portion 22 has upper frame claw portions 28. The upper frame portion 22 has the upper frame claw portions 28 that protrude downward. The upper frame claw portions 28 engage with the upper end portions 90a of the support columns 90.

[0110] The upper frame claw portions 28 are provided so as to protrude downward from the upper frame protruding wall portion 22d. The upper frame claw portions 28 are formed in a plate shape. The upper frame claw portions 28 are provided on the inner wall surface of the upper frame protruding wall portion 22d. The upper frame claw portions 28 are provided further inward of the housing 10 than the upper frame protruding wall portion 22d in the front-rear direction (Y-axis direction) of the housing 10. Therefore, in the opening frame portion 21, a step is formed between the plate surface on the front side of the upper frame claw portions 28 and the plate surface on the front side of the upper frame protruding wall portion 22d. The width of the upper frame claw portions 28 in the left-right direction (X-axis direction) is shorter than the length between the left side surface portion 92 and the right side surface portion 93 in the left-right direction (X-axis direction) of the housing 10.

[0111] Figure 28 is an enlarged schematic diagram of the lower frame portion 23, showing the portion where the support column 90 is installed. When the opening frame portion 21 includes the support column 90, as shown in Figure 28, the lower frame protruding wall portion 23c of the lower frame portion 23 has a lower frame claw portion 29. The lower frame portion 23 has the lower frame claw portion 29 that protrudes upward. The lower frame claw portion 29 engages with the lower end portion 90b of the support column 90.

[0112] The lower frame claw portions 29 are provided so as to protrude upward from the lower frame protruding wall portion 23c. The lower frame claw portions 29 are formed in a plate shape. The lower frame claw portions 29 are provided on the inner wall surface of the lower frame protruding wall portion 23c. The lower frame claw portions 29 are provided further inward of the housing 10 than the lower frame protruding wall portion 23c in the front-to-rear direction (Y-axis direction) of the housing 10. Therefore, in the opening frame portion 21, a step is formed between the plate surface on the front side of the lower frame claw portions 29 and the plate surface on the front side of the lower frame protruding wall portion 23c. The width of the lower frame claw portions 29 in the left-to-right direction (X-axis direction) is shorter than the length between the left side surface portion 92 and the right side surface portion 93 in the left-to-right direction (X-axis direction) of the housing 10.

[0113] 27 and 28, the length of the upper frame claw portion 28 protruding downward from the lower edge portion 22d1 of the upper frame protruding wall portion 22d is defined as upper frame claw length H1, and the length of the lower frame claw portion 29 protruding upward from the upper edge portion 23c1 of the lower frame protruding wall portion 23c is defined as lower frame claw length H2. The upper frame claw length H1 of the upper frame claw portion 28 may be any length that allows the upper frame claw portion 28 to face the inner wall surface of the front surface portion 91 when the support portion 90 is attached to the upper frame portion 22 and the lower frame portion 23. The lower frame claw length H2 of the lower frame claw portion 29 may be any length that allows the lower frame claw portion 29 to face the inner wall surface of the front surface portion 91 when the support portion 90 is attached to the upper frame portion 22 and the lower frame portion 23.

[0114] FIG. 29 is a perspective view showing an attachment state of the support column 90 of the air conditioning apparatus 100 according to the embodiment. FIG. 30 is a perspective view showing an attached state of the support column 90 of the air conditioning apparatus 100 according to the embodiment. As shown in FIG. 29, when attaching the support column 90 to the housing 10, the user first inserts the upper end portion 90a of the support column 90 into the housing 10, engages the upper end portion 90a with the upper frame claw portion 28 (see FIG. 27), and attaches the upper end portion 90a to the upper frame portion 22. At this time, the user places the left-wall upper claw portion 94 and the right-wall upper claw portion 95 on the inner surface side of the upper frame protruding wall portion 22d, and places the upper frame claw portion 28 in the space surrounded by the left side surface portion 92, the front surface portion 91, and the right side surface portion 93.

[0115] Next, as shown in Figure 30, the user inserts the lower end portion 90b of the support portion 90 into the housing 10, engages the lower end portion 90b with the lower frame claw portion 29 (see Figure 28), and attaches the lower end portion 90b to the lower frame portion 23. At this time, the user places the left-wall lower claw portion 96 and the right-wall lower claw portion 97 on the inner surface side of the lower frame protruding wall portion 23c, and places the lower frame claw portion 29 in the space surrounded by the left side surface portion 92, the front surface portion 91, and the right side surface portion 93. Thereafter, the user uses the weight of the support portion 90 to hook the lower end portion 90b of the support portion 90 onto the lower frame claw portion 29.

[0116] The support pillars 90 are hooked onto the upper frame portion 22 and the lower frame portion 23 while attached to the upper frame portion 22 and the lower frame portion 23. Because the support pillars 90 are hooked onto the upper frame portion 22 and the lower frame portion 23, they are easy to attach to the upper frame portion 22 and the lower frame portion 23, and easy to remove from the upper frame portion 22 and the lower frame portion 23.

[0117] 29 and 30 illustrate the installation of the support column 90. To remove the support column 90, simply reverse the installation steps. The user lifts the support column 90 and pulls the lower end 90b toward the user to remove the left-wall lower claw portion 96 and the right-wall lower claw portion 97 from the lower frame protruding wall portion 23c. Next, the user removes the left-wall upper claw portion 94 and the right-wall upper claw portion 95 from the upper frame protruding wall portion 22d.

[0118] Figure 31 is a plan view of the support column 90 attached to the upper frame section 22 and the lower frame section 23. Figure 32 is a perspective view of the support column 90 attached to the upper frame section 22. Figure 33 is a side view of the support column 90 attached to the upper frame section 22. As shown in Figures 31 to 33, when the support column 90 is attached to the upper frame section 22, the upper end portion 90a of the support column 90 engages with the upper frame claw portion 28.

[0119] 32 and 33, when the support column 90 is attached to the upper frame 22, the left-wall upper claw portion 94 and the right-wall upper claw portion 95 are disposed on the inner surface of the upper frame protruding wall portion 22d. When the support column 90 is moved in the front-rear direction (Y-axis direction), the left-wall upper claw portion 94 and the right-wall upper claw portion 95 abut against the upper frame protruding wall portion 22d from the inner surface of the upper frame protruding wall portion 22d. The left-wall upper claw portion 94 and the right-wall upper claw portion 95 abut against the upper frame protruding wall portion 22d from the inner surface of the upper frame protruding wall portion 22d due to the following configuration: In the up-down direction (Z-axis direction) of the housing 10, the length between the upper end of the left-wall upper claw portion 94 and the lower end of the left-wall lower claw portion 96 is longer than the length between the tip of the upper frame protruding wall portion 22d and the tip of the lower frame protruding wall portion 23c. Similarly, in the vertical direction (Z-axis direction) of the housing 10, the length between the upper end of the left wall upper claw portion 94 and the lower end of the left wall lower claw portion 96 of the support portion 90 is longer than the length between the tip of the upper frame protruding wall portion 22d and the tip of the lower frame protruding wall portion 23c.

[0120] As shown in Figures 32 and 33, when the support column 90 is attached to the upper frame section 22, the upper frame claws 28 are positioned on the inner surface of the front surface section 91, and the front surface section 91 is positioned on the outer surface of the upper frame claws 28. The upper frame claws 28 and the front surface section 91 face each other in the front-to-rear direction (Y-axis direction) of the housing 10. When the support column 90 is moved in the front-to-rear direction (Y-axis direction), the upper frame claws 28 come into contact with the front surface section 91 from the inner surface side of the front surface section 91. When the support column 90 is moved in the front-to-rear direction (Y-axis direction), the front surface section 91 comes into contact with the upper frame claws 28 from the outer surface side of the upper frame claws 28.

[0121] 32 and 33, when the support column 90 is attached to the upper frame 22, a gap S1 is formed between the lower edge 22d1 of the upper frame protruding wall 22d and the upper edge 91a of the front surface 91. Due to the gap S1 being formed, the air conditioning apparatus 100 allows the user to lift the support column 90 when attaching or removing the support column 90 and position the left-wall lower claw 96 and the right-wall lower claw 97 on the inner surface side of the lower frame protruding wall 23c. Note that when the support column 90 is attached to the upper frame 22, the gap S1 is covered and closed by the upper frame claws 28 from the inner surfaces of the upper frame protruding wall 22d and the front surface 91.

[0122] Figure 34 is a perspective view of the support column 90 attached to the lower frame section 23. Figure 35 is a side view of the support column 90 attached to the lower frame section 23. As shown in Figures 34 and 35, when the support column 90 is attached to the lower frame section 23, the lower end portion 90b of the support column 90 engages with the lower frame claw portion 29.

[0123] 34 and 35, when the support column 90 is attached to the lower frame 23, the left-wall lower claw portion 96 and the right-wall lower claw portion 97 are disposed on the inner surface side of the lower frame protruding wall portion 23c. When the support column 90 is moved in the front-rear direction (Y-axis direction), the left-wall lower claw portion 96 and the right-wall lower claw portion 97 abut against the lower frame protruding wall portion 23c from the inner surface side of the lower frame protruding wall portion 23c. The left-wall lower claw portion 96 and the right-wall lower claw portion 97 abut against the lower frame protruding wall portion 23c from the inner surface side of the lower frame protruding wall portion 23c due to the following configuration: In the up-down direction (Z-axis direction) of the housing 10, the length between the upper end of the left-wall upper claw portion 94 and the lower end of the left-wall lower claw portion 96 is longer than the length between the tip of the upper frame protruding wall portion 22d and the tip of the lower frame protruding wall portion 23c. Similarly, in the vertical direction (Z-axis direction) of the housing 10, the length between the upper end of the left wall upper claw portion 94 and the lower end of the left wall lower claw portion 96 of the support portion 90 is longer than the length between the tip of the upper frame protruding wall portion 22d and the tip of the lower frame protruding wall portion 23c.

[0124] As shown in Figures 34 and 35, when the support column 90 is attached to the lower frame 23, the lower frame claws 29 are positioned on the inner surface of the front surface 91, and the front surface 91 is positioned on the outer surface of the lower frame claws 29. The lower frame claws 29 and the front surface 91 face each other in the front-to-back direction (Y-axis direction) of the housing 10. When the support column 90 is moved in the front-to-back direction (Y-axis direction), the lower frame claws 29 abut against the front surface 91 from the inner surface side of the front surface 91. When the support column 90 is moved in the front-to-back direction (Y-axis direction), the front surface 91 abuts against the lower frame claws 29 from the outer surface side of the lower frame claws 29.

[0125] 34 and 35, when the support column 90 is attached to the lower frame 23, no gap is formed between the upper edge 23c1 of the lower frame protruding wall 23c and the lower edge 91b of the front surface 91. This is because the weight of the support column 90 causes the lower edge 91b of the front surface 91 to rest on the upper edge 23c1 of the lower frame protruding wall 23c.

[0126] When the support column 90 is attached to the upper frame portion 22 and the lower frame portion 23, the front surface portion 91 of the upper end portion 90a of the support column 90 faces the upper frame claw portion 28 from the outside of the housing 10, and the front surface portion 91 of the lower end portion 90b of the support column 90 faces the lower frame claw portion 29 from the outside of the housing 10. Furthermore, when the support column 90 is attached to the upper frame portion 22 and the lower frame portion 23, the upper claw portion 95a formed on the upper end portion 90a of the support column 90 faces the upper frame protruding wall portion 22d of the upper frame portion 22 from the inside of the housing 10. Furthermore, when the support column 90 is attached to the upper frame portion 22 and the lower frame portion 23, the lower claw portion 97a formed on the lower end portion 90b of the support column 90 faces the lower frame protruding wall portion 23c of the lower frame portion 23 from the inside of the housing 10.

[0127] Fig. 36 is an enlarged schematic view of an air conditioning apparatus 100 according to an embodiment in which an extension portion 40 is provided on a support portion 90. Fig. 37 is a schematic view of the filter fixing portion 80 shown in Fig. 36 as viewed in the axial direction of the shaft portion 86.

[0128] The support post 90 includes an extension portion 40, which may be attached to a front surface 91 of the support post 90 as shown in FIGS. 36 and 37 . That is, the support post 90 may be formed integrally with the extension portion 40. The inner wall portion 42 of the extension portion 40 is fixed to the front surface 91 of the support post 90 by a fixing member 45. The filter fixing portion 80 is attached to the extension portion 40 of the support post 90. The shaft portion 86 is attached to the outer wall portion 43 of the extension portion 40. The open tip portion 27 (see FIG. 19 ) is formed in the extension portion 40 of the support post 90.

[0129] 17 , the shaft 86 of the filter fixing part 80 is provided so as to be located above the filter panel 70, but the shaft 86 of the filter fixing part 80 may be provided so as to be located to the side of the filter panel 70, as shown in FIGS. 36 and 37 . The shaft 86 may be provided so as to be located in the gap between the filter panels 70. In other words, when two filter panels 70 are arranged in the housing 10, the shaft 86 of the filter fixing part 80 may be provided between the filter panels 70.

[0130] 36 and 37, the filter panel 70 is fixed at its side by the filter support parts 81. When two filter panels 70 are installed in the opening frame part 21, the filter fixing parts 80 may fix the side parts of each filter panel 70 or may fix the upper corner parts.

[0131] (Filter Panel 70) FIG. 38 is a perspective view that schematically shows a filter panel 70 that is attached to the housing 10 of the air conditioning apparatus 100 according to the embodiment. The air conditioning apparatus 100 has at least one filter panel 70. There may be one filter panel 70, or there may be multiple filter panels 70. The number of filter panels 70 is determined by factors such as the size of the housing 10, which is based on the horsepower of the air conditioning apparatus 100. The filter panel 70 removes dust and other particles from the air passing through the suction section 20. The filter panel 70 has a filter frame 71 and a filter 72.

[0132] The filter frame 71 is a frame material that supports the filter 72. The filter frame 71 is formed from, for example, aluminum, but the material of the filter frame 71 is not limited to aluminum. The filter frame 71 is formed in a rectangular shape when viewed in the front-to-rear direction (Y-axis direction) of the housing 10. The filter frame 71 is formed in a box shape and has a rectangular panel front wall portion 70a, a panel upper wall portion 70b provided on four sides of the panel front wall portion 70a, a panel left wall portion 70c, a panel right wall portion 70d, and a panel bottom wall portion 70e.

[0133] The panel front wall 70a is a wall that forms a wall facing the front-rear direction (Y-axis direction) of the housing 10. The panel front wall 70a is a wall that is located on the front side of the housing 10, and is a wall that faces the suction panel 17 when the suction panel 17 is attached to the housing 10. The panel front wall 70a is also a wall that faces the filter fixing part 80. The panel front wall 70a is a wall that extends in the left-right direction (X-axis direction) of the housing 10, and also extends in the up-down direction (Z-axis direction) of the housing 10.

[0134] The panel upper wall 70b is a wall provided at the upper edge of the panel front wall 70a. The panel left wall 70c is a wall provided at the left edge of the panel front wall 70a. The panel right wall 70d is a wall provided at the right edge of the panel front wall 70a. The panel bottom wall 70e is a wall provided at the lower edge of the panel front wall 70a.

[0135] The space surrounded by the panel front wall 70a, the panel upper wall 70b, the panel left wall 70c, the panel right wall 70d, and the panel bottom wall 70e faces the interior of the housing 10, facing the side where the heat exchanger 50 (FIG. 4) is disposed. A filter 72 is disposed in the space surrounded by the panel front wall 70a, the panel upper wall 70b, the panel left wall 70c, the panel right wall 70d, and the panel bottom wall 70e. An opening 70f is formed in the panel front wall 70a, and the filter 72 is disposed so as to be exposed from the opening 70f.

[0136] The filter 72 is a filtering material that captures dust from the air passing through the filter 72 and separates the dust from the air passing through the filter 72. The filter panel 70 having the filter 72 mounted on the filter frame 71 may itself be referred to as a filter.

[0137] [Actions and Effects of the Air Conditioning Apparatus 100] The air conditioning apparatus 100 has at least one filter panel 70 which has a filter 72 and is arranged in the intake section 20 to filter air flowing into the housing 10. The intake section 20 also has a filter fixing section 80 which fixes the at least one filter panel 70. A filter support section 81 of the filter fixing section 80 is suspended by a shaft section 86, and the upper part of the filter support section 81 is supported by the shaft section 86 so as to be freely rotatable. When at least one filter panel 70 is arranged in the intake section 20, the filter support section 81 faces all of the filter panels 70 from the outside of the housing 10.

[0138] In the air conditioning apparatus 100, the lower part of the filter support part 81 is formed with a wider plate width than the upper part of the filter support part 81. In the air conditioning apparatus 100, the lower part of the filter support part 81 is heavy, and the filter support part 81 is positioned opposite the filter panel 70 due to its own weight. When placing the filter panel 70 in the suction part 20, the user does not need to fasten the filter panel 70 to the suction part 20 of the housing 10 with fasteners such as screws, and no tools are required to attach the fasteners. Furthermore, the user can attach and remove the filter panel 70 simply by rotating the filter support part 81. Therefore, the user can easily attach and remove the filter 72 to and from the housing 10. Because the user can easily attach and remove the filter 72 to and from the housing 10, there is no need to take the time to attach and remove the filter 72, and the heat exchanger 50 can be easily washed and cleaned.

[0139] When the air conditioning device 100 is operating, air around the housing 10 is sucked into the housing 10, so the filter panel 70 is in tight contact with the wall inside the housing 10. However, if the filter fixing part 80 is not provided, there is a possibility that the filter panel 70 will fall off or fall outside the housing 10 because no air is sucked into the housing 10 when the air conditioning device 100 is stopped. Because the air conditioning device 100 has the filter fixing part 80, when the filter panel 70 is installed in the opening frame part 21 of the suction part 20, the filter panel 70 can be supported from the outside of the housing 10 to prevent the filter panel 70 from falling outside the housing 10.

[0140] Furthermore, in the air conditioning apparatus 100, the lower part of the filter support part 81 is formed with a wider plate width than the upper part of the filter support part 81. Therefore, the angle at which the filter support part 81 is rotated can be reduced when the user attaches the filter panel 70 to the housing 10 or removes the filter panel 70 from the housing 10. As a result, even in cases where there are constraints such as a lack of space above the filter panel 70, the air conditioning apparatus 100 can fix the filter panel 70 with the filter fixing part 80 because the range of movement of the filter support part 81 is small.

[0141] Furthermore, in the air conditioning apparatus 100, the lower part of the filter support part 81 is formed with a wider plate width than the upper part of the filter support part 81. Therefore, when two filter panels 70 are installed in the suction part 20, the two filter panels 70 can be fixed at the lower part of one filter fixing part 80 by attaching the shaft part 86 of the filter fixing part 80 between or above the two filter panels 70. Even when two filter panels 70 are installed in the suction part 20, the air conditioning apparatus 100 does not need to provide a filter fixing part 80 for each filter panel 70.

[0142] Furthermore, the filter support part 81 is formed in a triangular shape when viewed in the axial direction of the shaft part 86, and the shaft part 86 penetrates the vertex part of the triangular filter support part 81. Therefore, when a user attaches the filter panel 70 to the housing 10 or removes the filter panel 70 from the housing 10, the angle at which the filter support part 81 is rotated can be made smaller compared to when the filter support part 81 is square. As a result, even when there are constraints such as a lack of space above the filter panel 70, the air conditioning apparatus 100 can fix the filter panel 70 with the filter fixing part 80 because the range of movement of the filter support part 81 is small.

[0143] Furthermore, suction section 20 is a part of the wall that constitutes suction section 20 and has open tip section 27 formed in a cylindrical shape with a raised portion around the hole. Open tip section 27 is inserted into opening 84 formed in filter support section 81, and shaft section 86 is inserted into and fixed to the hole at the tip of open tip section 27. Because shaft section 86 is fixed to open tip section 27, filter fixing section 80 can reliably and firmly screw-fix shaft section 86. In air conditioning apparatus 100, open tip section 27 is disposed between filter support section 81 and shaft section 86. Therefore, even when shaft section 86 is fastened to open tip section 27, head section 87 of shaft section 86 does not fasten filter support section 81 to opening frame section 21, and rotation of filter support section 81 is not hindered by friction between filter support section 81, head section 87, and opening frame section 21.

[0144] In the air conditioning apparatus 100, the filter panel 70 needs to be tightly attached to the opening frame 21 to ensure airtightness, but if the filter support part 81 has room to move back and forth, this goal of ensuring airtightness cannot be achieved. If the opening tip 27 is disposed between the filter support part 81 and the shaft part 86, the front and rear movement of the filter fixing part 80 is limited by the opening tip 27, which has been burred. Therefore, by having the opening tip 27 and filter fixing part 80 configured as described above, the air conditioning apparatus 100 can tightly attach the filter panel 70 to the opening frame 21, ensuring the airtightness of the air conditioning apparatus 100.

[0145] Furthermore, the filter fixing portion 80 is attached to the upper frame portion 22. With this configuration, the filter fixing portion 80 can fix the upper portion of the filter panel 70.

[0146] Furthermore, the opening frame 21 is formed in a long columnar shape, spans between the upper frame 22 and the lower frame 23, and includes a support 90 that is detachably disposed on the upper frame 22 and the lower frame 23. At least one filter panel 70 is disposed between the filter fixing part 80 and the support 90 in the flow direction of the air drawn into the suction part 20.

[0147] In the air conditioning apparatus 100, for example, when two filter panels 70 are installed in the intake section 20, if the opening frame 21 does not include the support members 90, air will not pass through the filters 72 (see FIG. 38) in the gaps between the filter panels 70. In the air conditioning apparatus 100, the opening frame 21 includes the support members 90, which cover the gaps between the filter panels 70 from the inside of the housing 10 and prevent air from passing through the gaps between the filter panels 70. The support members 90 can prevent so-called air bypass, in which air flows into the housing 10 from outside without passing through the filters 72 of the filter panels 70.

[0148] Furthermore, when the air conditioning apparatus 100 is operating, a suction force acts on the filter panels 70 due to the air flow generated by the blower 60. If the opening frame 21 did not include the support posts 90, there would be no member between the filter panels 70 to support the filter panels 70, and the filter panels 70 would be prone to deformation due to the suction force. In the air conditioning apparatus 100, the opening frame 21 includes the support posts 90, which enable the support posts 90 to support the filter panels 70 from inside the housing 10, preventing deformation of the filter panels 70 even when a suction force acts on the filter panels 70.

[0149] The filter fixing portion 80 is attached to the support portion 90. The filter fixing portion 80 can fix the top or side of the filter panel 70 with this configuration.

[0150] Furthermore, the support pillars 90 are positioned to cover the space between the two filter panels 70 from inside the housing 10 when the suction unit 20 is viewed from outside the housing 10, and to support the two filter panels 70 from inside the housing 10. With this configuration, the air conditioning device 100 can prevent air from passing through the gaps between the filter panels 70, and can prevent so-called air bypass, in which air flows into the housing 10 from outside the housing 10 without passing through the filters 72 of the filter panels 70. With this configuration, the air conditioning device 100 can also use the support pillars 90 to support the filter panels 70 from inside the housing 10, and can prevent deformation of the filter panels 70 even when a suction force acts on the filter panels 70.

[0151] Furthermore, when the support column 90 is attached to the upper frame section 22 and the lower frame section 23, the front surface 91 of the upper end section 90a of the support column 90 faces the upper frame claw section 28 from the outside of the housing 10, and the front surface 91 of the lower end section 90b of the support column 90 faces the lower frame claw section 29 from the outside of the housing 10. Furthermore, when the support column 90 is attached to the upper frame section 22 and the lower frame section 23, the upper claw section 95a formed on the upper end section 90a of the support column 90 faces the upper frame protruding wall section 22d of the upper frame section 22 from the inside of the housing 10. Furthermore, when the support column 90 is attached to the upper frame section 22 and the lower frame section 23, the lower claw section 97a formed on the lower end section 90b of the support column 90 faces the lower frame protruding wall section 23c of the lower frame section 23 from the inside of the housing 10.

[0152] Because the upper claw portion 95a of the support column 90 abuts against the upper frame protruding wall portion 22d and the lower claw portion 97a abuts against the lower frame protruding wall portion 23c, the support column 90 does not move toward the front side of the housing 10 after being attached to the upper frame portion 22 and the lower frame portion 23. Furthermore, because the upper frame claw portion 28 abuts against the upper end of the front surface portion 91 and the lower frame claw portion 29 abuts against the lower end of the front surface portion 91, the support column 90 does not move toward the rear side of the housing 10, which is the side on which the heat exchanger 50 is disposed, after being attached to the upper frame portion 22 and the lower frame portion 23. Therefore, even if a user grabs the support column 90 and stands up during service, the support column 90 will not come off the housing 10.

[0153] Furthermore, because the air conditioning apparatus 100 has this configuration, when the user places the support column 90 in the intake section 20, the user does not need to fix the support column 90 to the housing 10 with fixing devices such as screws, and no tools are required to attach the fixing devices. Therefore, the user can easily attach the support column 90 to the housing 10 and remove the support column 90 from the housing 10. Because the user can easily attach the support column 90 to the housing 10 and remove the support column 90 from the housing 10, there is no need to go through the trouble of attaching and detaching the support column 90, and the heat exchanger 50 can be easily washed and cleaned.

[0154] The configurations shown in the above embodiments are examples of the contents of the present disclosure, and may be combined with other known technologies, or parts of the configurations may be omitted or modified within the scope of the gist of the present disclosure. [Explanation of symbols]

[0155] 10 housing, 11 front panel, 12 rear panel, 13 right side panel, 14 left side panel, 15 bottom panel, 16 top panel, 17 intake panel, 17a through hole, 20 intake section, 21 opening frame section, 22 upper frame section, 22a upper frame front section, 22b upper frame top section, 22c upper frame bottom section, 22d upper frame protruding wall section, 22d1 lower edge section, 23 lower frame section, 23a lower frame bottom section, 23b lower frame front wall section, 23c lower frame protruding wall section, 23c1 upper edge section, 24 left frame section, 24a left frame front section, 24b left frame side wall section, 24c left frame protruding wall section, 25 right frame section, 25a right frame front section, 25b right frame side wall section, 25c Right frame protruding wall portion, 27 opening tip portion, 27a hole, 28 upper frame claw portion, 29 lower frame claw portion, 30 blowing portion, 40 extension portion, 41 bridging portion, 42 inner wall portion, 42a through hole, 43 outer wall portion, 43a through hole, 45 fixing member, 50 heat exchanger, 60 blower device, 61 blade, 62 fan casing, 62a discharge portion, 70 filter panel, 70a panel front wall portion, 70b panel upper wall portion, 70c panel left wall portion, 70d panel right wall portion, 70e panel bottom wall portion, 70f opening, 71 filter frame, 72 filter, 80 filter fixing portion, 80L filter fixing portion, 81 filter support portion, 81L filter support portion, 81a lower end portion, 81b upper end portion, 82 support plate portion, 83 Protruding portion, 84 opening, 86 shaft portion, 87 head portion, 88 screw portion, 90 support portion, 90a upper end portion, 90b lower end portion, 91 front portion, 91a upper edge portion, 91b lower edge portion, 92 left side surface portion, 93 right side surface portion, 94 upper claw portion on left wall, 95 upper claw portion on right wall, 95a upper claw portion, 96 lower claw portion on left wall, 97 lower claw portion on right wall, 97a lower claw portion, 100 air conditioning device.

Claims

1. A blower; a heat exchanger that exchanges heat between the refrigerant flowing therein and the air supplied by the air blower; a housing formed with an intake section into which the air is drawn and an outlet section from which the air is blown out, the housing accommodating the blower device and the heat exchanger therein; At least one filter panel having a filter and disposed in the intake section to filter the air flowing into the housing; Equipped with The suction portion is a filter fixing portion for fixing the at least one filter panel; The filter fixing portion is a filter support portion formed in a plate shape; a shaft portion that passes through the filter support portion and suspends and rotatably supports the filter support portion; and The filter support portion is an upper portion of the filter support portion is rotatably supported by the shaft portion, When the at least one filter panel is disposed in the suction section, the filter panel is suspended from the shaft by its own weight and faces all of the filter panels of the at least one filter panel from the outside of the housing; a lower portion of the filter support portion is formed with a plate width greater than that of an upper portion of the filter support portion, The suction portion is a part of the wall constituting the suction section, the part having an opening tip portion formed in a cylindrical shape with a rising edge around the hole; The opening tip portion is The filter is inserted into an opening formed in the filter support portion, The shaft portion is The air conditioning device is inserted into the hole at the tip of the open tip portion and fixed.

2. A blower; a heat exchanger that exchanges heat between the refrigerant flowing therein and the air supplied by the air blower; a housing formed with an intake section into which the air is drawn and an outlet section from which the air is blown out, the housing accommodating the blower device and the heat exchanger therein; At least one filter panel having a filter and disposed in the intake section to filter the air flowing into the housing; Equipped with The suction portion is a filter fixing portion for fixing the at least one filter panel; The filter fixing portion is a filter support portion formed in a plate shape; a shaft portion that passes through the filter support portion and suspends and rotatably supports the filter support portion; and The filter support portion is an upper portion of the filter support portion is rotatably supported by the shaft portion, When the at least one filter panel is disposed in the suction section, the filter panel is suspended from the shaft by its own weight and faces all of the filter panels of the at least one filter panel from the outside of the housing; a lower portion of the filter support portion is formed with a plate width greater than that of an upper portion of the filter support portion, The suction portion is It has an opening frame portion formed in a rectangular frame shape, The opening frame portion is an upper frame portion located at an upper edge portion of the suction portion; a lower frame portion located at a lower edge portion of the suction portion; Including, The opening frame portion is a support portion formed in a long columnar shape, spanning between the upper frame portion and the lower frame portion, and detachably disposed on the upper frame portion and the lower frame portion; The filter fixing portion is attached to the support portion, The at least one filter panel comprises: The air conditioning apparatus is disposed between the filter fixing portion and the support portion in the direction of flow of the air drawn into the suction portion.

3. The filter support portion is When viewed in the axial direction of the shaft portion, the shaft portion is formed in a triangular shape, The shaft portion is 3. The air conditioner according to claim 1, wherein the filter support member is formed in a triangular shape and penetrates an apex of the filter support member.

4. The suction portion is The opening frame portion is formed in a rectangular frame shape, The opening frame portion is an upper frame portion located at an upper edge portion of the suction portion; a lower frame portion located at a lower edge portion of the suction portion; Including, The filter fixing portion is The air conditioner according to claim 1, wherein the air conditioner is attached to the upper frame portion.

5. The opening frame portion is a support portion formed in a long columnar shape, spanning between the upper frame portion and the lower frame portion, and detachably disposed on the upper frame portion and the lower frame portion; The at least one filter panel comprises: The air conditioner according to claim 4, wherein the filter is disposed between the filter fixing portion and the support column in the direction of flow of the air drawn into the suction portion.

6. the at least one filter panel comprises two filter panels; When the two filter panels are disposed in the suction section, The support portion is An air conditioning apparatus as described in claim 2 or 5, wherein the suction section is positioned so as to cover the space between the two filter panels from inside the housing when viewed from outside the housing and to support the two filter panels from inside the housing.

7. The support portion is a front surface portion formed in a plate shape, and a left side surface portion and a right side surface portion extending from both sides of the front surface portion toward the inside of the housing, facing each other, and formed longer than the front surface portion along the longitudinal direction; The upper portions of the left side surface and the right side surface are An upper claw portion is formed to protrude above the upper edge of the front surface, The left side surface and the right side surface are provided at the lower part thereof with: A lower claw portion is formed so as to protrude downward from the lower edge portion of the front surface, The length of the upper claw portion is longer than the length of the lower claw portion in the longitudinal direction, The upper frame portion is It has an upper frame claw portion that protrudes downward, The lower frame portion is It has a lower frame claw portion that protrudes upward, When the support portion is attached to the upper frame portion and the lower frame portion, the front surface of the upper end of the support column faces the upper frame claw from the outside of the housing, the front surface of the lower end of the support column faces the lower frame claw from the outside of the housing, the upper claw portion formed on the upper end portion of the support column faces the upper frame portion from the inside of the housing, The air conditioning apparatus according to claim 2 or 5, wherein the lower claws formed on the lower ends of the support columns face the lower frame from inside the housing.

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