JP7352821B2 - Ceiling-mounted air conditioner - Google Patents

Description

The present invention relates to a ceiling-mounted air conditioner (indoor unit) that is installed on the ceiling of an air-conditioned room using hanging bolts, etc. More specifically, the present invention relates to a ceiling-mounted air conditioner (indoor unit) that is installed on the ceiling of an air-conditioned room using hanging bolts or the like. This relates to a ceiling-mounted air conditioner.

A ceiling-mounted air conditioner is installed on the ceiling of an air-conditioned room using hanging bolts or the like. The housing of a ceiling-mounted air conditioner has a front panel (also called a bottom panel) that faces the floor of the air-conditioned room, a left side panel, a right side panel, and a rear panel, and is often flat. be.

The inside of the housing is partitioned by a partition plate into a heat exchanger room in which an indoor heat exchanger and a drain pan are housed, and a blower room in which a blower fan (sirocco fan) is housed.

Normally, the heat exchanger room is placed on the front panel side, the blower room is placed on the rear panel side, the air outlet is provided in front of the housing on the heat exchanger room side, and the air outlet is placed on the bottom side of the blower room. is equipped with an air intake port. A suction grill having an air filter is attached to the air intake port, and a wind direction plate is provided to the air outlet.

The front panel is removably attached to the housing as a decorative cover for a drain pan, as described in Patent Document 1, for example. During cooling operation, condensed water drips from the indoor heat exchanger into the drain pan, making it easy for mold and indoor dust to form. Therefore, as part of maintenance, it is necessary to regularly or irregularly remove the drain pan from the housing and clean it.

The front panel is screwed to the housing, but is removed during drain pan maintenance and reattached to the housing after maintenance is completed. However, there are the following problems in carrying out this work.

That is, since the ceiling-mounted air conditioner itself is large, the front panel is also large. If a large front panel is made of synthetic resin, molding problems such as sink marks will occur, so for example, a decorative steel plate (sheet metal part) is used for the front panel, but since it is large and heavy, When removing or installing the front panel, it may be difficult for one person to support it.

Another problem is that a gap is likely to occur between the front panel made of sheet metal and a suction grill made of synthetic resin, for example, which is arranged adjacent to the front panel.

Japanese Patent Application Publication No. 2008-209065

Therefore, an object of the present invention is to provide a ceiling-mounted air conditioner whose front panel can be suspended from a housing during maintenance of a drain pan of an indoor unit.

In order to solve the above problems, the present invention includes a casing installed on the ceiling of an air-conditioned room, and the casing includes a front panel facing the floor of the air-conditioned room, a left side panel, and a right side panel. The interior of the housing includes a side panel and a rear panel, and the inside of the housing is partitioned by a partition plate into a heat exchanger room in which an indoor heat exchanger and a drain pan are arranged, and a blower room in which a blower fan is arranged. An air inlet is provided as a decorative cover for the drain pan in a removable manner on the casing, an air outlet is provided in the front of the casing on the heat exchanger room side, and an air inlet with a suction grill is provided on the bottom of the blower room. In the ceiling-mounted air conditioner, the front panel is disposed adjacent to the air outlet side and the suction grill is disposed adjacent to the rear panel side within the bottom surface of the casing,
Hanging means is provided to allow the front panel to be hung at a predetermined portion of the housing when the front panel is removed , and the hanging means is provided at the rear edge of the front panel on the side of the suction grill. It is characterized by being

According to a preferred embodiment of the present invention, the rear end side of the suction grill is pivotally supported by the lower end of the rear panel.

Further, in the present invention, a reinforcing metal fitting that also serves as a filter guide for the air filter included in the suction grill is spanned between the partition plate and the rear panel, and the hanging means It is characterized by a hanging hook that is latched to a metal fitting.

In the present invention, the front panel is screwed to the casing, and the front panel has an engagement member that engages with a predetermined portion of the casing to hold the front panel when the screws are released. Preferably, a claw is further provided.

According to the present invention, the front panel can be suspended from the housing during maintenance of the drain pan of the indoor unit.

FIG. 1 is an external perspective view of the ceiling-mounted air conditioner according to the present invention, looking up from the floor side. FIG. 3 is a bottom view of the ceiling-mounted air conditioner. FIG. 3 is a sectional view taken along line AA in FIG. 2. FIG. 3 is a bottom perspective view showing the ceiling-mounted air conditioner with the suction grill open. FIG. 3 is an exploded perspective view of the ceiling-mounted air conditioner. (a) A side view of the ceiling-mounted air conditioner, (b) a sectional view taken along the line BB. FIG. 3 is an enlarged view showing a portion of the side cover of the ceiling-mounted air conditioner that wraps around toward the air outlet side. FIG. 7 is a bottom view showing a state in which the side cover on the side having the display device is attached to the side panel. The bottom view which shows the side cover of the side which has the said indicator as a single unit. FIG. 3 is a perspective view showing the mounting position of the electrical component box in the ceiling-mounted air conditioner. FIG. 3 is a bottom view showing how connection piping is routed in the ceiling-mounted air conditioner. FIG. 2 is a perspective view of the ceiling-mounted air conditioner viewed from the floor side, showing the direction in which connecting piping can be pulled out. FIG. 3 is a perspective view of a main part showing drawer windows for connection piping provided at both corner portions of the casing in the ceiling-mounted air conditioner. FIG. 3 is a sectional view showing a suspension structure of a front panel in the ceiling-mounted air conditioner. FIG. 3 is a bottom view showing the hanging hook of the front panel. FIG. 3 is a perspective view showing a suspended state of the front panel. FIG. 17 is an enlarged perspective view showing the hanging portion of FIG. 16. FIG. 3 is a perspective view showing temporary fixing means for the front panel. FIG. 3 is a cross-sectional view showing a locking structure at the tip of the front panel.

Next, some embodiments of the present invention will be described with reference to FIGS. 1 to 19, but the present invention is not limited thereto.

"overall structure"
First, referring to FIGS. 1 to 5, a ceiling-mounted air conditioner 1 according to the present invention is an indoor unit installed on the ceiling of an air-conditioned room, and includes a flat housing 10. In the description of this embodiment, the terms upper (top side), front (front side), rear (rear side), side (side side), and lower (bottom side) are based on FIG. ) points toward the front of the page.

The casing 10 is installed so as to be suspended from the ceiling of an air-conditioned room (indoor) using a hanging bolt or the like (not shown). Although not shown, the device may be hung on a wall and supported by an inverted L-shaped hanger device near the ceiling.

The housing 10 includes a top panel (top board) 11 facing the ceiling, a left side panel (side board) 12L, a left side panel (side board) 12R, and a front panel (front board) 13. , a rear panel (rear plate) 14.

When there is no need to distinguish between the left side panel 12L and the left side panel 12R, they are collectively referred to as the side panel 12. Note that in FIGS. 1 and 2, the side panel 12 is not visible because it is covered with a cosmetic side cover 15 (15L, 15R). Each of these panels 11 to 14 is made of sheet metal, and in particular, a decorative steel plate is used for the front panel 13, but each of the panels 11 to 14 may be made of synthetic resin.

As shown in FIG. 3, the inside of the housing 10 is partitioned into a heat exchanger chamber 17 and a blower chamber 18 in the front-rear direction by a partition plate 16. Inside the heat exchanger chamber 17, an indoor heat exchanger 171 and a drain pan 172 are housed.

The drain pan 172 is made of styrofoam, for example, and is arranged below the indoor heat exchanger 171 as a condensation tray. The front panel 13 is arranged along the bottom surface of the drain pan 172 as a decorative cover. As will be described later, the front panel 13 is removable and is removed during maintenance (for example, cleaning) of the drain pan 172.

An air outlet 20 is provided in front of the heat exchanger chamber 17 (on the front end side of the housing 10). The air outlet 20 is a horizontally elongated opening, and a vertical wind direction plate 21 is provided inside thereof. Furthermore, left and right wind direction plates 22 are provided behind the vertical wind direction plates 21.

A sirocco fan 181 as a blower is housed inside the blower room 18. In this example, as shown in FIG. 4, four sirocco fans 181 are used. The air outlet of the fan case sink 182 of the sirocco fan 181 penetrates the partition plate 16 and enters the heat exchanger chamber 17.

The bottom of the blower chamber 18 serves as an air suction port 30. A suction grill 31 having an air filter 32 is provided within the air suction port 30 . The suction grill 31 is arranged so as to be in contact with the rear end of the front panel 13, and the front panel 13 and the suction grill 31 constitute the bottom surface of the housing 10. The rear end 311 of the suction grill 31 is pivotally supported by the lower end of the rear panel 14, and as shown in FIG. 4, it can be rotated to open.

When the sirocco fan 181 operates, indoor air is sucked into the blower chamber 18 through the air filter 32 of the suction grill 31, blown out from the fan case sink 182 into the heat exchanger chamber 17, and exchanged with refrigerant in the indoor heat exchanger 171. After the heat is exchanged, the air is blown out from the air outlet 20 toward the room, and the room is air-conditioned.

《External shape of the housing (side cover)》
Decorative side covers 15L and 15R are attached to the side panels 12L and 12R, respectively. Since the side covers 15L and 15R are symmetrical, they are collectively referred to as the side cover 15 when there is no need to distinguish between them.

Referring to FIGS. 6(a) and 6(b), the side cover 15 has an upper area 151 on the ceiling side and an upper area 151 on the floor side in order to make the housing 10 look thin and reduce the volume when viewed from the floor side. It is divided into a lower region 152.

The side cover 15 has a dogleg-shaped cross section in which a boundary portion 153 between an upper region 151 and a lower region 152 protrudes outward from the housing 10 . That is, the left side cover 15L has a dogleg shape in cross section so that its boundary portion 153 protrudes to the left, and the right side cover 15R has a dogleg shape in cross section so that its boundary portion 153 protrudes to the right. It is formed into a letter shape.

According to this, when looking up at the casing 10 installed on the ceiling, all or part of the upper region 151 is hidden by the lower region 152, and the casing 10 appears thin. Furthermore, in the case of wall hanging installation, the hanger portion becomes difficult to see, making it possible to make the housing 10 appear to be floating.

In order to further enhance these effects, it is preferable that a stepped portion 154 having a predetermined width (for example, about 12 mm) be formed along the boundary portion 153 on the upper region 151 side. According to this, since the lower region 152 is arranged outside the housing 10 than the upper region 151, the upper region 151 becomes more difficult to see.

The lower region 152 has a band-like surface and is formed so as to be continuous from one side cover 15R on the right side, through the front cover portion 110 of the top panel 11, to the other side cover 15L on the left side.

Referring to FIG. 6, the front cover part 110 has air blown from the terminal part 111 where the boundary part 153 and the step part 154 collide with the top panel 11 and disappear as the lower region 152 wraps around to the top panel 11 side. This is a portion extending to the front end 10a of the housing 10 on the outlet 20 side, and corresponds to the upper surface of the air outlet 20.

Preferably, the front cover portion 110 of the top panel 11 has an inclined surface that slopes downward from the terminal end portion 111 toward the front end 10a, and the lower region 152 of the side cover 15 is arranged above the air outlet 20. It is preferable to curve it so as to wrap around the edge, and as shown in FIG. 7, the corner C1 from the side cover 15 of the lower region 152 to the front cover part 110 has a first curved surface with a large curvature, and the corner is rounded.

According to this, the visual effect allows the lower area 152 to be perceived as a series of band-shaped surfaces with a sense of unity, reducing the volume and lateral overhang of the housing 10, and making it appear more compact than its actual width. be done.

In addition, in order to make this effect more prominent, as shown in FIG. It is preferable to have a curved surface with the same curvature as the corner C1 leading to (see the portion labeled C1 in FIG. 7).

Furthermore, in order to express the feeling that the band-shaped lower region 152 wraps around the rear panel 14 side, the lower region 152 of the side cover 15 is curved so as to wrap around the rear panel 14 side.
As shown in FIG. 2, it is preferable that the corner C2 on the rear end side of the lower region 152 has a vertically long second curved surface having a predetermined curvature. According to this, when viewed from the front, the corner C2 on the rear end side of the lower region 152 appears to have a larger curved surface than it actually has.

"display"
Next, with reference to FIGS. 8 and 9, the arrangement of the display 40 that displays the operating status of the ceiling-mounted air conditioner 1 (operating status of cooling, heating, dehumidification, timer operation, etc.) will be explained. .

The side cover 15 (15L, 15R) is provided with a flange portion 155 that wraps around toward the housing 10 at its periphery. In the present invention, the display device 40 is arranged not on the front panel 13 side but on the flange portion 155 of the side cover 15 (in this embodiment, the right side cover 15R).

The display 40 is an optional part, and if the display 40 is not required, a nameplate 430 displaying, for example, the brand name, model name, etc., is fitted into the mounting location of the display 40. By attaching the display 40 to the flange portion 155 of the side cover 15, these operations can be easily performed simply by removing the side cover 15.

The display 40 includes a display main body 410 having a display control board and the like, and a removable display cover 420 attached to the display surface side of the display main body 410. The display main body 410 is equipped with a number of light emitting diodes 411 corresponding to the display items, and the display cover 420 is made of, for example, a translucent plate, with predetermined pictographs placed at positions corresponding to the light emitting diodes. A plurality of icon marks 421 are drawn.

The display main body 410 is fitted into a portion of the flange portion 155 and fixed with screws, and is preferably placed at a position of the flange portion 155 that is away from the air outlet 20 and closer to the rear panel 14 side. Particularly preferably, the display 40 may be placed beside the suction grill 31 because, unlike the air outlet 20, the suction grill 31 does not have a moving part such as a wind direction plate and is difficult to see.

Furthermore, even when pictographs (icon marks 421) are displayed, it is preferable that they be arranged horizontally parallel to the horizontal beams 313 of the suction grill 31, rather than vertically when viewed from the front side of the casing 10. According to this, there is no difference in the visibility of the pictograph display when viewed from the front side of the housing 10. Furthermore, it is possible to unify the design.

《Electrical equipment box》
Referring also to FIG. 10, in the present invention, the electrical component box 50 is provided on the outer surface side of one of the side panels 12L and 12R. Specifically, it is arranged in a space formed by the side panel 12 and the side cover 15. According to this, the electrical component box 50 can be easily accessed by removing the side cover 15, and work such as parts replacement, for example, can be easily performed, and work efficiency is improved.

Preferably, it is arranged on the side panel 12 on the side closer to the display 40, in this embodiment, on the right side panel 12R. According to this, the wiring length between the electrical component box 50 and the display 40 is shortened, and there is no need to run long wiring inside the housing 10.

Although not shown, the indoor heat exchanger 171 is provided with a piping connection portion for refrigerant piping at one end of the left or right side. Since the pipe connection part is provided with a pipe temperature sensor, an electronic expansion valve, etc. (both not shown), it is more preferable that the pipe connection part of the indoor heat exchanger 171 also be connected to the side surface on which the electrical component box 50 is provided. It is preferable to arrange it on the panel 12 (in this embodiment, the right side panel 12R) side.

That is, in the electrical component box 50, the side cover 15 having the display 40, which is either the left side panel 12L or the right side panel 12R, is attached, and the piping connection part of the indoor heat exchanger 171 is arranged. Preferably, it is attached to the side side panel 12.

Note that since the side panel 12 is made of a sheet metal having enough strength to be provided with a hanging device (not shown) for hanging from the ceiling, the electrical component box 50 can be easily attached. Further, as described above, since the side cover 15 is formed in a dogleg shape in cross section protruding outward from the housing 10, the central portion 510 of the electrical component box 50 is shaped in a chevron shape (for example, It can be formed in the form of a gable roof, which allows taller parts to be placed in its top part.

《Connection piping routing》
Next, with reference to FIGS. 3 and 11 to 13, the routing of the connecting pipe P for connecting to the outdoor unit will be described. According to the present invention, the connection pipe P for connecting to the outdoor unit can be pulled out from either the left corner part 141L or the right corner part 141R on the rear panel 14 side, depending on the arrangement of the outdoor unit, the indoor floor plan, etc. Can be done. Note that the connection pipe P includes a gas side pipe and a liquid side pipe.

According to the present invention, as described above, the electrical component box 50 is disposed not between the sirocco fan 181 and the rear panel 14 but within the space formed by the side panel 12 and the side cover 15. As shown in FIG. 3, the space between the sirocco fan 181 in the blower room 18 and the rear panel 14 can be used as a piping space 180 through which the connecting piping P passes.

Here, if the piping connection part of the indoor heat exchanger 171 is arranged on the right side, as shown in FIG. 14, and from there select one of top out, back out, and side out (right). In FIG. 10, rear exit is selected.

On the other hand, when the connecting pipe P is pulled out from the left corner part 141L, the connecting pipe P is pulled out from the right corner part 141R and then bent at an almost right angle toward the left corner part 141L, and the connecting pipe P It passes through the piping space 180 between the panel 14 and reaches the left corner portion 141L. Then, for the connection pipe P, one of the top, rear, and side (left) ports is selected.

In order to facilitate this pipe drawing operation, as shown in FIG. 11, a pipe drawing part 190 that can be drawn out in three directions is provided in each of the right corner part 141R and the left corner part 141L. FIG. 11 shows a case where the connecting pipe P is piped from the right corner part 141R to the left corner part 141L.

As shown in FIG. 13, the piping pull-out portion 190 of the left corner portion 141L includes a first pull-out portion 191 for side extraction provided on the side panel 12 and a second pull-out portion 191 for rear extraction provided on the rear panel 14. It includes a drawer part 192 and a third drawer part 193 for raising the top provided on the top panel.

In this embodiment, among these, the first drawer part 191 for side drawer and the second drawer part 192 for rear drawer are formed as punched openings in advance, but the third drawer part 193 for upper drawer is formed as a punched opening. consists of a covered knock-out hole which can be easily removed, for example by striking. The first drawer section 191 for side draw-out and the second drawer section 192 for rear pull-out may be formed by knockout panels.

Note that the third drawer portion 193 for upward drawing does not need to be provided at both the right corner portion 141R and the left corner portion 141L. In this embodiment, it is provided on the right corner portion 141R side of the pipe connection portion of the indoor heat exchanger 171.

Here, with reference to FIGS. 3 to 5, in the air suction port 30 of the blower room 18, between the partition plate 16 and the rear panel 14, there is a beam as a frame member that also serves as a filter guide for the air filter 32. A plurality of metal fittings 33 (three in this example) are spanned.

According to this embodiment, a presser metal fitting 34 is provided between the beam metal fitting 33 and the top panel 11 to hold down the connecting pipe P passing through the piping space 180 between the sirocco fan 181 and the rear panel 14. .

As shown in FIGS. 4 and 5, the side panel 12 on the side of the blower chamber 18 is largely gouged out in a U-shape in order to attach the supporting member of the sirocco fan 181 and to accommodate the first drawer part 191 for horizontal extraction. Since the housing 10 lacks strength, each side panel 12 (12L, 12R) is removably provided with a reinforcing stay 35 that increases the mechanical strength of the housing 10.

This reinforcing stay 35 is a component that may be removed from the side panel 12 after the ceiling-mounted air conditioner 1 is installed on the ceiling. Therefore, in the present invention, the reinforcing stay 35 is used as the presser metal fitting 34 in order to effectively utilize the reinforcing stay 35.

《Hanging the front panel》
When maintaining the indoor unit, for example, when cleaning the drain pan by removing the drain pan 172 from the housing 10, the front panel 13 must be removed, but the front panel 13 is made of decorative steel plate and is large, so it takes a lot of work. Due to its weight, it may be difficult for one person to support the front panel 13 when removing or installing it. Therefore, in the present invention, a configuration is adopted in which the front panel 13 can be suspended from the housing 10.

Referring to FIGS. 3 and 13 to 16, an inverted L-shaped angle portion 135 is formed at a rear end 131 of the front panel 13 on the suction grill 31 side. The angle portion 135 includes a vertical plate portion 135a vertically rising from the rear end 131 of the front panel 13, and a horizontal plate portion 135b bent at a right angle from the upper end of the vertical plate portion 135a.

A flange portion 161 bent at a substantially right angle is integrally formed at the lower end of the partition plate 16. One end of the beam fitting 33 is attached to the flange portion 161. Normally, when the front panel 13 covers the bottom surface of the drain pan 172, the horizontal plate portion 135b is in contact with the lower surface of the flange portion 161, as shown in FIG .

Referring also to FIG. 15 , a bearing fitting 137 having a pair of left and right coaxial bearing grooves 137a is fixed to the bottom side of the horizontal plate portion 135b by welding or the like. A hanging hook 60 is attached to the rear end 131 of the front panel 13 by a bearing fitting 137.

The hanging hook 60 is made of a round steel wire rod. The hanging hook 60 is bent into a substantially U-shape and has a gate shape as a whole, and has a top portion 601, a pair of left and right legs 602, 602 whose both ends of the top portion 601 extend in parallel in the same direction, and a lower end of the legs 602, 602. It has shaft portions 603, 603 that are coaxial and bent in opposite directions.

The hanging hook 60 has its top portion 601 placed on the upper surface 331 side of the beam fitting 33 (hooked), and the shaft portions 603, 603 are engaged in the bearing grooves 137a, 137a of the bearing fitting 137. ing.

The hanging hooks 60 are preferably provided at at least two locations on the left and right, preferably for each beam fitting 33. Further, it is preferable that the top portion 601 of the hanging hook 60 and the upper surface 331 of the beam fitting 33 are both horizontal. Accordingly, when the front panel 13 is suspended, the front panel 13 can be prevented from swinging in the left-right direction. Prevented.

Further, as shown in FIG. 14, the tip 312 of the opening side of the suction grill 31 enters flush with the angle portion 135 on the rear end 131 side of the front panel 13, and the gap between the front panel 13 and the suction grill 31 is This also ensures that there are no gaps.

As a structure for this purpose, an engagement hole 136 is formed in the vertical plate portion 135a of the angle portion 135. On the other hand, the suction grill 31 includes a plurality of horizontal bars 313 parallel to each other, among which the horizontal bar 313a on the tip side is slidable in the front-rear direction (left-right direction in FIG. 14 ); 313a is provided with an engagement piece 314 that moves in and out of the engagement hole 136 as the engagement piece 313a slides.

Further, as shown in FIG. 18 , an engaging claw 138 is provided on the inner surface of the side edge of the front panel 13. As shown in FIG. The engaging claw 138 is a flat plate made of sheet metal and includes a dogleg-shaped hook. On the other hand, on the side edge side of the side panel 12, an engagement hole 123, which is the counterpart of the engagement claw 138, is provided. The engagement hole 123 is a slit-shaped hole extending in the front-rear direction.

Normally, the front panel 13 is screwed to the housing 10 at several locations. When the screw is removed during maintenance of the drain pan 172, the front panel 13 separates from the drain pan 172 and tries to fall, but since the engaging claw 138 gets caught on the edge of the engaging hole 123, the front panel 13 separates slightly from the drain pan 172. It is held in position (temporary fixation). Note that when opening the front panel 13, as shown in FIG. 4, the suction grill 31 is opened first.

The front panel 13 becomes slidable in the front and rear directions when the screws are removed. Therefore, the engaging claw 138 is removed from the engaging hole 123 by sliding the front panel 13 forward (to the front in FIG. 18 , to the left in FIG. 3).

Thereby, as shown in FIG. 16 , the front panel 13 is suspended using the hanging hook 60 on the rear end 131 side as a fulcrum. At this time, the weight of the front panel 13 is applied to approximately the center of the housing 10, so that the housing 10 is suspended in a well-balanced manner without being subjected to an unbalanced load.

Furthermore, as described above, by making the top 601 of the hanging hook 60 and the top surface 331 of the beam fitting 33 both horizontal, the front panel 13 is prevented from shaking in the left-right direction when the front panel 13 is suspended. be done.

After maintenance of the drain pan 172, the front panel 13 is returned to its original position covering the drain pan 172 and screwed down, but as shown in FIG. 19, a folded portion 133 is formed on the front end side of the front panel 13. At the same time, a depression 173 into which the folded portion 133 fits is formed on the side of the drain pan 172 corresponding to this.

A locking protrusion 174 is formed in the recess 173 to which the folded portion 133 of the front panel 13 is removably hooked. As described above, the front panel 13 becomes slidable in the front and rear directions when the screws are removed. Therefore, when the front panel 13 is shifted to the left in FIG. When the panel 13 is shifted to the right in FIG. 19, the folded portion 133 is locked to the locking protrusion 174. This prevents a gap from forming on the front end side of the front panel 13.

1 Ceiling-mounted air conditioner 10 Housing 11 Top panel 12 (12L, 12R) Side panel 13 Front panel 135 Angle portion 135a Vertical plate portion 135b Horizontal plate portion 136 Engagement hole 137 Bearing fitting 137a Bearing groove 138 Engagement claw 14 Rear panel 141 (141L, 141R) Corner section 15 (15L, 15R) Side cover 151 Upper region 152 Lower region 153 Boundary section 154 Step section 155 Flange section 16 Partition plate 17 Heat exchanger chamber 171 Indoor heat exchanger 172 Drain pan 18 Blower room 180 Piping space 181 Sirocco fan 20 Air outlet 21 Wind direction plate 30 Air suction port 31 Suction grille 313 Horizontal bar 313a Tip side horizontal bar 314 Engagement piece 32 Air filter 33 Beam fitting 34 Holding metal fitting 35 Auxiliary stay 40 Display 410 Display main body 420 Display cover 50 Electrical component box 60 Hanging hook 601 Top part 602 Leg part 603 Shaft part

Claims (4)

A casing is installed on the ceiling of the air-conditioned room, and the casing includes a front panel facing the floor of the air-conditioned room, a left side panel, a right side panel, and a rear panel. is divided by a partition plate into a heat exchanger room where an indoor heat exchanger and a drain pan are placed, and a blower room where a blower fan is placed, and the front panel is removable from the housing as a decorative cover for the drain pan. At the same time, an air outlet is provided in the front of the casing on the heat exchanger room side, and an air suction port with a suction grill is provided on the bottom of the blower room, and In a ceiling-mounted air conditioner in which the front panel is arranged adjacent to the air outlet side and the suction grill is arranged adjacent to the rear panel side ,
comprising a hanging means that allows the front panel to be hung at a predetermined portion of the casing when the front panel is removed ;
The ceiling-suspended air conditioner is characterized in that the hanging means is provided at a rear edge of the front panel on the side of the suction grill . 2. The ceiling-suspended air conditioner according to claim 1, wherein the suction grill has a rear end side pivotally supported by a lower end of the rear panel . A reinforcing metal fitting that also serves as a filter guide for the air filter of the suction grill is spanned between the partition plate and the rear panel, and the hanging means is locked to the reinforcing metal fitting. The ceiling-mounted air conditioner according to claim 1 or 2, comprising a hanging hook. The front panel is screwed to the housing, and the front panel is further provided with an engaging claw that engages with a predetermined part of the housing to hold the front panel when the screws are released. The ceiling-mounted air conditioner according to any one of claims 1 to 3, characterized in that:

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