JP7310512B2 - Templates for ceiling-mounted air conditioners - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling suspended air conditioner (indoor unit) that is installed on the ceiling of an air conditioned room by hanging bolts or the like, and more specifically to a template used during installation.

Among the indoor units of air conditioners, the indoor units of ceiling-suspended air conditioners that are installed on the ceiling of the room to be air-conditioned by hanging bolts, etc., have a top panel, a front panel, a left side panel, and a right side panel. It comprises a housing with a panel and a back panel, often of flat shape.

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

Normally, the heat exchanger chamber is arranged on the front panel side, the fan chamber is arranged on the rear panel side, the air outlet is provided in front of the housing on the heat exchanger chamber side, and the bottom side of the fan chamber is installed. is provided with an air intake. A suction grill having an air filter is attached to the air inlet, and a wind direction plate is provided to the air outlet.

By the way, a ceiling suspension type air conditioner is usually suspended by four suspension bolts. Therefore, on the housing side, suspending brackets for suspending bolts are provided at two locations on the left side panel and two locations on the right side panel, for a total of four locations (see, for example, Patent Document 1).

When installing a ceiling-suspended air conditioner in a high place near the ceiling, it is necessary to align the suspension bolts and the suspension brackets in advance. To facilitate the work, a paper pattern called a template is used.

The position of the hanging bracket is indicated as a dot mark on the template. Place the template on the ceiling where the ceiling-mounted air conditioner will be installed, align the hanging bolts with the dot marks, and hang it. After determining the positions of the bolts, the ceiling-suspended air conditioner is set on the ceiling surface, and the suspension bolts are attached to the suspension brackets.

If suspension bolts cannot be used due to the structure of the ceiling, etc., there is a method of installing the ceiling-suspended air conditioner near the ceiling using a pair of left and right L-shaped angles as wall-suspension installation. In the case of this wall-suspended installation, L-shaped angles are arranged on the left and right sides of the housing, the horizontal beams of the L-shaped angles are used to suspend the air conditioner, and the vertical beams are fixed to the wall or the like.

In this case also, the L-shaped angle needs to be aligned with the position of the suspension bracket, but the conventional template does not consider the alignment mark for the L-shaped angle.

JP-A-2003-120995

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a template that can also be used for wall hanging installation using an L-shaped angle.

In order to solve the above problems, the present invention comprises a housing including a top panel, a front panel, a left side panel, a right side panel and a rear panel, wherein each of the left side panel and the right side panel In the template used when installing a ceiling-suspended air conditioner that is provided with a suspension bracket for suspension bolts from the ceiling,
A dot mark indicating the position of the suspension bracket is provided, and the L-shaped angle is used for the ceiling suspension so that the ceiling-suspended air conditioner can be applied to a wall-suspended installation using a pair of left and right L-shaped angles. It is characterized in that a guide line for aligning the hanging position on the left side and the hanging position on the right side of the air conditioner is drawn out from the dot marks.

In the present invention, a main plate corresponding to the top panel and a sub-plate corresponding to the rear panel are provided, the dot mark is displayed on the main plate, and the guide line extends from the dot mark to the sub-plate. The aspect displayed over is also included.

According to the present invention, the L-shaped angle can be aligned with the suspension bracket even when the ceiling-suspended air conditioner is installed to be wall-suspended by the L-shaped angle.

1 is an external perspective view of a ceiling-suspended air conditioner according to the present invention, looking up from the floor side; FIG. The bottom view of the said ceiling suspension type air conditioner. FIG. 3 is a cross-sectional view taken along the line AA of FIG. 2; FIG. 2 is a perspective view of the bottom side of the ceiling-suspended air conditioner with the intake grille opened. FIG. 2 is an exploded perspective view of the above-mentioned ceiling suspension type air conditioner. (a) A side view of the ceiling-suspended air conditioner, (b) a cross-sectional view taken along line BB thereof. FIG. 4 is an enlarged view showing a wraparound portion of the side cover of the ceiling suspension type air conditioner toward the air outlet side. 1 is a front perspective view of a wind deflector according to the present invention; FIG. FIG. 2 is a perspective view of the back side showing the wind deflector according to the present invention; FIG. 4 is a perspective view showing the air deflector main body and the side plate portion of the air deflector separated from each other; The perspective view which shows the welding surface of the said side-plate part. FIG. 4 is a perspective view showing a welding surface of a shaft support attached to the wind direction plate; The perspective view which shows the attachment position of an electrical component box in the said ceiling suspension type air conditioner. FIG. 4 is a bottom view showing how connecting pipes are routed in the ceiling-suspended air conditioner. FIG. 3 is an external perspective view of the above-mentioned ceiling-suspended air conditioner, looking up from the floor side, showing the direction in which the connecting pipe can be pulled out. FIG. 4 is a perspective view of a main part showing drawer windows for connecting pipes provided at both corner portions of the housing in the above-mentioned ceiling-suspended air conditioner. Sectional drawing which shows the suspension structure of a front panel in the said ceiling suspension type air conditioner. The bottom view which shows the hanging hook of the said front panel. The perspective view which shows the hanging state of the said front panel. FIG. 17 is an enlarged perspective view showing the hanging portion of FIG. 16; The perspective view which shows the temporary fixing means of the said front panel. Sectional drawing which shows the locking structure of the front-end|tip part of a front panel. The perspective view which shows the state by which the cover body of the electrical component box was closed. The perspective view which shows the state in the middle of opening the cover body of an electrical component box. The front view which shows the state which opened the cover body of an electrical component box. The bottom side perspective view of a drain pan. The side view which shows the state which attaches a drain pan to a housing|casing. Figure 22b is a perspective view of Figure 22b; The side view which showed the procedure which attaches a drain pan to a housing|casing. The side view which showed the procedure which attaches a drain pan to a housing|casing. The side view which showed the procedure which attaches a drain pan to a housing|casing. The perspective view which shows the state which carried out the wall hanging installation of the said ceiling suspension type air conditioner. The perspective view which shows the L-shaped angle used for the said wall hanging installation. The top view which shows the template applicable also to the said wall hanging installation.

Next, some embodiments of the present invention will be described with reference to FIGS. 1 to 22, but the present invention is not limited thereto.

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

The housing 10 is installed by hanging from the ceiling of the air-conditioned room (indoor) with hanging bolts (not shown) or the like. Although not shown, it may be installed near the ceiling by being supported by an inverted L-shaped hanger device as a wall hanging installation.

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

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

As shown in FIG. 3 , the interior of the housing 10 is partitioned into a heat exchanger chamber 17 and a fan chamber 18 in the front-rear direction by a partition plate 16 . An indoor heat exchanger 171 and a drain pan 172 are accommodated in the heat exchanger chamber 17 .

The drain pan 172 is made of foamed polystyrene, for example, and arranged below the indoor heat exchanger 171 as a dew tray. The front panel 13 is arranged along the bottom surface of the drain pan 172 so as to cover the drain pan 172 as a decorative cover. As will be described later, the front panel 13 is detachable, 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 laterally long opening extending in the horizontal direction (horizontal direction), and a wind direction plate for deflecting the air flow blown out from the air outlet 20 in the vertical direction within a predetermined angle range. A (vertical wind direction plate) 21 is provided. A wind direction plate (left-right direction plate) 22 is provided behind the wind direction plate 21 to deflect the direction of the air flow blown out from the air outlet 20 in the left-right direction.

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

The bottom surface of the blower chamber 18 serves as an air suction port 30. - 特許庁A suction grille 31 having an air filter 32 is provided in the air suction port 30 . The suction grille 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 grille 31 constitute the bottom surface of the housing 10 . The rear end 311 side of the intake grille 31 is pivotally supported by the lower end of the rear panel 14, and can be opened by rotating it counterclockwise as shown in FIG.

Due to the operation of the sirocco fan 181, indoor air is sucked into the blower chamber 18 through the air filter 32 of the intake grille 31, blown out into the heat exchanger chamber 17 through the fan case sink 182, and then mixed with the refrigerant in the indoor heat exchanger 171. After the heat is exchanged, the air is blown into the room from the air outlet 20 to air-condition the room.

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

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 sense of volume when viewed from the floor side. and a lower region 152 of the .

The side cover 15 has a V-shaped cross section in which a boundary portion 153 between the upper region 151 and the lower region 152 protrudes outward from the housing 10 . That is, the left side cover 15L has a V-shaped cross section with a boundary portion 153 projecting leftward, and the right side cover 15R has a V-shaped cross section with a boundary portion 153 projecting rightward. It is shaped like a letter.

According to this, when looking up at the housing 10 installed on the ceiling, all or part of the upper region 151 is hidden by the lower region 152, and the housing 10 looks thin. In addition, in the case of wall hanging installation, as shown in FIG. 22a, the housing 10 is supported by the L-shaped angle 70, but the L-shaped angle 70 becomes difficult to see.

In order to further enhance these effects, as shown in FIG. 6B, a stepped portion 154 having a predetermined width (for example, about 12 mm) is formed along the boundary portion 153 on the upper region 151 side of the boundary portion 153 . preferably. According to this, since the lower area 152 is arranged outside the housing 10 rather than the upper area 151, the upper area 151 becomes more difficult to see.

The lower region 152 forms a belt-like surface and is formed so as to extend from one, for example, the right side cover 15R through the front cover portion 110 of the top panel 11 to the other left side cover 15L.

Referring to FIG. 6, front cover portion 110 has air blown from end portion 111 where boundary portion 153 and stepped portion 154 abut against top panel 11 and disappear as lower region 152 wraps around to top panel 11 side. It is a portion extending to the front end 10 a of the housing 10 on the side of the outlet 20 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 positioned above the air outlet 20. As shown in FIG. 7, the corner C1 extending from the side cover 15 to the front cover portion 110 in the lower region 152 may be rounded to have a first curved surface R1 having a large curvature. .

According to this, the lower area 152 can be perceived as a series of belt-like surfaces with a sense of unity due to the visual effect, and the feeling of volume and lateral protrusion of the housing 10 can be reduced, and the effect of making the housing 10 appear more compact than its actual width is achieved. be done.

In addition, in order to make this effect more conspicuous, as shown in FIG. It is preferable to have a curved surface with a curvature similar to that of the corner C1 extending to the edge.

In addition, in order to express the impression that the strip-shaped lower region 152 wraps around to the rear panel 14 side, the lower region 152 of the side cover 15 is curved so as to wrap around to the rear panel 14 side.
As shown in FIG. 2, the corner C2 on the rear end side of the lower region 152 is preferably provided with a vertically elongated second curved surface R2 having a predetermined curvature. As a result, when looking up from the front, the corner C2 on the rear end side of the lower region 152 appears to have a curved surface larger than it actually is.

The side cover 15 (15L, 15R) has a flange portion 155 that wraps around the periphery toward the housing 10 side. A display 40 for displaying the operating state and the like is arranged on the flange portion 155 of the side cover 15 (in this embodiment, the right side cover 15R).

《Wind direction plate》
Next, referring to FIGS. 8(a), 8(b) and 9(a) to 9(c), the configuration of the wind direction plate (vertical direction plate) 21 arranged in the air outlet 20 will be described.

The wind direction plate 21 has a long band plate shape formed to match the size of the air outlet 20, and as shown in FIG. The cross section is curved in an arch shape so that a sense of unity with the panel 13 can be obtained. 8a shows the front side (convex side) of the air deflector 21, and FIG. 8b shows the back side (concave side) of the air deflector 21. FIG.

The wind direction plate 21 includes a wind direction plate body 23, a left side plate portion 24L attached to the left end side of the wind direction plate body 23 in FIG. 8(b), and a right end side of the wind direction plate body 23 in FIG. 8(b). and a right side plate portion 24R. In this embodiment, the left side plate portion 24L and the right side plate portion 24R are bilaterally symmetrical, and are collectively referred to as the side plate portion 24 when there is no need to distinguish between them.

The wind direction plate main body 23 is an extruded product, and both ends thereof are cut along straight lines perpendicular to the length direction. FIG. 9(a) shows the left end face 232 of one of them. Further, on the rear surface side of both ends of the wind direction plate main body 23, a welding surface (first welding surface) 231 is formed with a reduced thickness by forming a stepped portion as a connecting portion.

As shown in FIG. 9A, the side plate portions 24 (24L, 24R) are injection-molded products in a mold. and a flange piece 242 formed to rise substantially at right angles from the edge.

A welding surface (second welding surface) 243 is formed on the front side (convex side) of the connecting portion 241 to reduce the thickness by forming a stepped portion. The welded surface 243 faces the welded surface 231 on the side of the wind deflector body 23, and when overlapped, has the thickness of one sheet of the wind deflector body 23 formed by extrusion molding.

In other words, the first welding surface 231 and the second welding surface 243 are in a relationship of an intermittent joint, and on the side of the welding surface 243 of the side plate portion 24, a stepped surface 244 against which the end surface 232 of the wind direction plate main body 23 abuts is linear. A stepped surface 233 against which the end surface 246 of the side plate portion 24 abuts is linearly formed on the welding surface 231 side of the wind direction plate main body 23 .

In this way, the end surface 232 of the air deflector main body 23 and the stepped surface 244 of the side plate portion 24, and the end surface 246 of the side plate portion 24 and the stepped surface 233 of the air deflector main body 23 are perpendicular and parallel to each other. At the welded portion between the main body 23 and the side plate portion 24, there is only one joining line appearing on the front side and the back side of the wind direction plate 21. As shown in FIG. That is, the joining line on the front side does not pass through to the back side, and the joining line on the front side does not pass through to the back side.

In addition, in the side plate portion 24, the welding surface 243 is provided on one side of the side plate portion 24, and the remainder of the side plate portion 24 on the side of the flange piece 242 can be used as a design portion to enhance the design. A wind direction plate 21 is obtained.

The rotation shaft 210a of the wind direction plate 21 is provided on the flange piece 242 so as to face outward.

The welding surface 231 and the welding surface 243 are integrally welded by ultrasonic welding. For this reason, as shown in FIG. 9(b), a plurality of ribs 245 are formed on the welding surface 243 on the side plate portion 24 side to serve as a fusion zone during ultrasonic welding.

The welding ribs 245 may be formed on the welding surface 231 side of the wind direction plate main body 23 , but by forming the welding ribs 245 on the welding surface 243 side of the side plate portion 24 as in this embodiment, Even if a sink mark occurs during ultrasonic welding, the front side of the wind direction plate main body 23 can be prevented from being left with a trace of the sink mark.

Since the side plate portion 24 is manufactured by injection molding, as described with reference to FIG. It can have a curved surface with curvature.

Since the air deflector main body 23 is long, the shaft supports 25 having the rotating shafts 210b are also attached to the back side of the air deflector main body 23, for example, at two locations. The shaft support portion 25 includes a welded portion 251 as a connecting portion to the wind direction plate main body 23 and a flange piece 252 formed to rise substantially at right angles from the end portion of the welded portion 251 .

The flange piece 252 is also provided with the rotating shaft 210b. The welded portion 251 of the shaft support portion 25 is integrally welded to the back side of the wind direction plate main body 23 by ultrasonic welding so that the rotating shaft 210b thereof is coaxial with the rotating shaft 210a of the side plate portion 24 side.

Therefore, as shown in FIG. 9c, a welded portion 251 of the shaft support portion 25 is also formed with a plurality of ribs 253 that serve as welded portions during ultrasonic welding. By forming the ribs 253 for welding in the welded portion 251 of the shaft support portion 25 in this manner, even if sink marks occur during ultrasonic welding, the marks of the sink marks do not appear on the front side of the wind direction plate main body 23. can be

Although not shown, the air outlet 20 is provided with bearings for the rotating shafts 210a and 210b and a motor for driving the wind direction plate. It is rotatably supported about a center and driven between a fully closed position and a fully open position by a motor.

As shown in FIG. 7, the reference numeral 202 denotes the joint between the front cover portion 110 of the top panel 110 and the side cover 15, and the reference numeral 202 denotes the joint between the wind direction plate main body 23 and the side plate portion 24 of the wind direction plate 21. As 203, it is preferable to align the seams 202 and 203 on a straight line when the wind direction plate 21 is closed.

According to the configuration of the air deflector 21, when the length of the air deflector 21 differs for each model, only the length of the extruded air deflector 21 needs to be changed, and the side plate portions 24 (24L, 24R) can be shared. Therefore, it is possible to deal with different models having different wind direction plates 21 in length without incurring extra costs.

《Electrical component box》
Also referring 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 S (see FIG. 6B) formed by the side panel 12 and the side cover 15 . According to this, by removing the side cover 15, the electric component box 50 can be easily accessed, and work such as part replacement can be easily performed, thereby improving workability.

Preferably, it is located on the side panel 12 closer to the display 40, in this embodiment the right side panel 12R. According to this, the wiring length between the electrical component box 50 and the display device 40 is shortened, and the need for routing long wiring inside the housing 10 is eliminated.

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

That is, the electrical component box 50 is attached with the side cover 15 having the indicator 40 on either the left side panel 12L or the right side panel 12R, and the piping connecting portion of the indoor heat exchanger 171 is arranged. It is preferably attached to the side panel 12 on the side.

Since the side panel 12 is made of sheet metal having sufficient strength to be provided with a hanger (not shown) for hanging from the ceiling, the electrical component box 50 can be easily attached.

In the present invention, the electrical component box 50 has a structure that allows easy access to the inside and good maintainability, and the structure will be described with reference to FIGS. 20a to 20c. 20a, the electrical component box 50 is viewed from a direction different from that in FIG.

The electrical component box 50 includes a box body 520 fixed to the side panel 12 and a lid body 530 detachably covering the box body 520 . One side surface of the box body 520 on the side cover 15 side is opened as an opening 523, and various electric parts are accommodated therein, as shown in FIG. 20c.

The lid 530 is detachably attached to the opening 523 of the box body 520 . A first screwing portion 540 arranged on one side 521 side and a second screwing portion 550 arranged on the other side 522 side are provided. Note that the horizontal direction of the box body 50 is the direction from the oblique front to the oblique rear in FIG. 20a (horizontal direction in FIG. 20c).

The first screwing part 540 includes an engaging hole 541 and a male screw 542. In this case, the engaging hole 541 is an elliptical long hole having a long axis along the lateral direction of the box body 50. .

The second screwing part 550 includes an engaging groove 551 and a male screw 552. In this case, the engaging groove 551 extends along the lateral direction of the box body 50 and ends at the side edge of the lid 530. It consists of a horizontally elongated U-shaped (U-shaped) groove that is open to the end.

In addition, as described above, since the side cover 15 is formed to have a V-shaped cross-section that protrudes outward from the housing 10, the lid 530 is fitted to the central portion 510 of the electrical component box 50 accordingly. A canopy-like elevation 531 is provided. According to this, a tall component (for example, a large aluminum electrolytic capacitor or the like) can be arranged on the raised portion 531 .

To open the lid 530, first, the male screw 542 of the first screwing portion 540 and the male screw 552 of the second screwing portion 550 are loosened, the lid 530 is moved leftward in FIG. 552 is removed from the engaging groove 551. As a result, as shown in FIG. 20b, the second screwing portion 550 side of the lid 530 can be opened.

Preferably, the male screw 542 is sufficiently loosened to allow the lid 530 to float outward so that tall components do not hit the lid 530 . The male screws 542 and 552 are left attached to the box body 520 without being removed from the box body 520. - 特許庁

Subsequently, as shown in FIG. 20c, by rotating the lid body 530 in the direction of the arrow in the figure with the first screwing portion 540 as a fulcrum, the lid body 530 can be hung from the box body 520, and the inside of the box body 520 can be opened. electrical components can be accessed.

To close the lid body 530, the order of FIG. 20c→FIG. 20b→FIG.

As described above, according to the present invention, the electrical component box 50 can be accessed simply by removing the side cover 15 . Further, by loosening the male screws 542 and 552 of the first screwing portion 540 and the second screwing portion 550, the lid body 530 can be hung from the box body 520 and opened.

《Connection piping routing》
Next, with reference to FIGS. 3, 5, and 11 to 13, the routing of the connection pipe P for connecting with the outdoor unit will be described. According to the present invention, the connecting pipe P for connecting with the outdoor unit can be pulled out from either the left corner portion 141L or the right corner portion 141R on the rear panel 14 side according to the arrangement of the outdoor unit, the layout of the room, and the like. can be done. 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 arranged not between the sirocco fan 181 and the rear panel 14, but in the space S formed by the side panel 12 and the side cover 15. 3, the space between the sirocco fan 181 and the rear panel 14 in the blower room 18 can be used as a piping space 180 through which the connection piping P is passed.

Here, assuming that the pipe connection portion of the indoor heat exchanger 171 is arranged on the right side, as shown in FIG. 14 to the right corner portion 141R. Backing out is shown in FIG.

On the other hand, when the connection pipe P is pulled out from the left corner portion 141L, the connection pipe P is bent at the right corner portion 141R at a substantially right angle toward the left corner portion 141L, and is bent between the sirocco fan 181 and the rear panel 14. through the piping space 180 to reach the left corner portion 141L. Then, the connection pipe P is selected from upward, rearward, and sideways (left).

In order to facilitate this pipe drawing work, as shown in FIG. 11, the right corner portion 141R and the left corner portion 141L are each provided with a pipe drawing portion 190 that can be drawn out in three directions. FIG. 11 shows a mode in which the connection pipe P is laterally led out (Ps) from the right corner portion 141R and backward (Pb), and a mode in which the connection pipe P is led out backward (Pb) from the left corner portion 141L.

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

In this embodiment, the first drawer portion 191 for lateral drawing and the second drawer portion 192 for rear drawing are formed as openings punched in advance, but the third drawer portion 193 for upward drawing is formed. consists of a knock-out hole with a lid that can be easily removed, for example by applying a blow. The first drawer portion 191 for lateral drawing and the second drawer portion 192 for rear drawing may be drawer portions by knockout panels.

It should be noted that the third drawer portion 193 for upward extraction does not necessarily have 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 indoor heat exchanger 171 on the piping connection portion side.

Here, referring to FIGS. 3 to 5, in the air suction port 30 of the blower chamber 18, between the partition plate 16 and the rear panel 14, a beam serving as a skeleton material that also serves as a filter guide for the air filter 32 is provided. A plurality of metal fittings 33 (three in this example) are laid over.

When the connecting pipe P comes into contact with the fan casing 182 of the sirocco fan 181, the vibration of the fan casing 182 may generate an unpleasant noise.

According to this embodiment, in order to prevent the occurrence of this harsh noise, the piping space 180 between the fan casing 182 of the sirocco fan 181 and the rear panel 14 is provided between the beam fitting 33 and the top panel 11 . A pressing metal fitting 34 is provided for pressing the connecting pipe P that is passed through.

As shown in FIGS. 10 and 13 , on the side panel 12 near the rear panel 14 side of the blower chamber 18 , a pipe joint (for example, a flareless pipe joint) J with which the connection pipe P is drawn out from the indoor heat exchanger 171 is provided. An opening 125 for pipe connection work is formed, which is largely hollowed out in a substantially U-shape (U-shape) so that an operator can insert his or her hand when connecting to the pipe. In addition, the opening 125 may be used as a first drawer 191 for lateral extraction.

The opening 125 has a first side 126 extending along the rear panel 14 , a second side 127 corresponding to the bottom, and a third side 128 facing the first side 126 . surrounded by

Of these, the first side portion 126 in particular has a role as a supporting member for the rear panel 14, so the opening portion 125 is insufficient in strength, and vibration and drop impact during transportation to the installation site may occur. There is a possibility that distortion or the like may occur in the housing 10 due to this.

Therefore, in this embodiment, the reinforcing stay 35 is arranged in the opening 125 to increase the mechanical strength. It is preferable that the reinforcing stay 35 is arranged so as not to interfere with drawing out the connecting pipe P.

Therefore, in this embodiment, as shown in FIG. 10, the reinforcing stay 35 is obliquely attached from the first side portion 126 to the second side portion 127 . According to this, as shown in FIG. 13, the connecting pipe P can be pulled out from the opening 125 (the first drawer portion 191 for lateral drawing) with the reinforcing stay 35 attached.

In this embodiment, the reinforcing stay 35 is detachably provided. The reinforcing stay 35 is a component that may be removed from the opening 125 after the ceiling suspended air conditioner 1 is installed on the ceiling. Therefore, in the present invention, the reinforcing stay 35 is used as the presser fitting 34 to make effective use of the reinforcing stay 35 .

《Hanging the front panel》
During maintenance of the indoor unit, for example, the drain pan 172 is removed from the housing 10 and cleaned, the front panel 13 is removed. Due to its weight, it may not be possible for one person to support the front panel 13 when removing or attaching it. Therefore, in the present invention, a structure is adopted in which the front panel 13 can be moved to the open position on the suction grill 31 side and can be suspended from the housing 10 .

3 and 13 to 16, an inverted L-shaped angle portion 135 is formed at the rear end 131 of the front panel 13 on the suction grill 31 side. The angle portion 135 consists of 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 right angles from the upper end of the vertical plate portion 135a toward the suction grille 31 (rightward in FIG. 14). It is included.

The lower end of the partition plate 16 is integrally formed with a flange portion 161 that is bent substantially at right angles. One end of the beam fitting 33 is attached to the flange portion 161 . When the front panel 13 normally 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. 14, a bearing fitting 137 having a pair of left and right coaxial bearing grooves 137a, 137a is fixed by welding or the like to the bottom surface of the horizontal plate portion 135b. A suspension hook 60 is attached to the rear end 131 of the front panel 13 by a bearing fitting 137 .

The suspension hook 60 is made of a round steel wire rod. The hanging hook 60 is bent in a substantially U-shape and has a gate shape as a whole. It has shaft portions 603, 603 which are coaxial with each other and are bent in mutually opposite directions.

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

The suspension hooks 60 are preferably provided in at least two locations on the left and right, preferably for each beam fitting 33 . In addition, it is preferable that both the top portion 601 of the suspension hook 60 and the upper surface 331 of the beam fitting 33 are parallel to the horizontal surface (the horizontal surface when the indoor unit is installed). In this state, the front panel 13 is prevented from shaking in the horizontal direction.

Further, as shown in FIG. 14 , the front end 312 of the intake grille 31 on the open side fits into the angle portion 135 on the rear end 131 side of the front panel 13 in a flush manner, and the space between the front panel 13 and the intake grille 31 is flat. Also, there should be no gaps.

As a configuration for this purpose, an engagement hole 136 is formed in the vertical plate portion 135a of the angle portion 135. As shown in FIG. On the other hand, the intake grille 31 has a plurality of horizontal beams 313, 313, . . . , which are parallel to each other. , and an engaging piece 314 that moves in and out of the engaging hole 136 as it slides.

Further, as shown in FIG. 18, an engaging claw 138 is provided on the inner surface side of the side edge of the front panel 13 . The engaging claw 138 is a plate made of sheet metal and has a dogleg-shaped hook. On the other hand, the side edge of the side panel 12 is provided with an engaging hole 123 that is the counterpart of the engaging claw 138 . 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 points. When the screw is removed during maintenance of the drain pan 172, the front panel 13 is about to fall away from the drain pan 172, but the engaging claw 138 is caught on the edge of the engaging hole 123, so the front panel 13 is slightly separated from the drain pan 172. It is held in position (temporarily fixed). When opening the front panel 13, the intake grille 31 is first opened as shown in FIG.

The front panel 13 becomes slidable in the front-rear direction when the screws are removed. Then, the front panel 13 is slid forward (front side in FIG. 18, left side in FIG. 3) to disengage the engaging claw 138 from the engaging hole 123 .

As a result, as shown in FIG. 16, the front panel 13 is hung with 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 substantially the central portion of the housing 10, so that the housing 10 is hung in a well-balanced manner without any biased load.

Further, as described above, the top 601 of the suspension hook 60 and the upper surface 331 of the beam fitting 33 are both parallel to the horizontal plane (horizontal plane when the indoor unit is installed), so that the front panel 13 is suspended. , the front panel 13 is prevented from swinging in the horizontal direction.

16, the front panel 13 can be moved to the open position on the side of the suction grill 31 while sliding the top 601 of the suspension hook 60 on the upper surface 331 of the beam fitting 33.

After maintenance of the drain pan 172, the front panel 13 is returned to the original position covering the drain pan 172 and screwed. As shown in FIG. In addition, a recess 173 into which the folded portion 133 is fitted is formed on the side of the drain pan 172 corresponding thereto.

A locking projection 174 is formed in the depression 173 to detachably hook the folded portion 133 of the front panel 13 . As described above, when the screws are removed, the front panel 13 becomes slidable in the front-rear direction. Therefore, when the front panel 13 is shifted leftward in FIG. When the panel 13 is shifted to the right in FIG. This prevents a gap from forming on the front end side of the front panel 13 .

《Drain Pan》
Next, with reference to FIGS. 21a to 21e, a configuration in which maintenance workability of the drain pan 172 is improved will be described.

As shown in FIG. 21a, the drain pan 172 has screw fittings 175 for the housing 10 on its left side 172L and right side 072R. The drain pan 172 is made of resin (polystyrene foam), and the screw fittings 175 are insert-molded. The screw fitting 175 on the left side and the screw fitting 175 on the right side have the same shape.

In this embodiment, the screw fittings 175 are screwed to the flanges 12f formed on the lower edges of the side panels 12 (12L, 12R) of the housing 10. As shown in FIG. A male screw 177 is used for the screw fitting 175, and a female screw hole 178 as a counterpart of the male screw 177 is provided in the flange 12f.

The screw fitting 175 is provided with an engagement hole 176 through which the male screw 177 is inserted. As shown in FIG. 21c, the engagement hole 176 has a small diameter portion 176S with an inner diameter smaller than the head 177h of the male screw 177 and a large diameter portion 176L with an inner diameter larger than the head 177h of the male screw 177. there is

The small diameter portion 176S and the large diameter portion 176L are connected as one hole, and the male screw 177 is movable between the small diameter portion 176S and the large diameter portion 176L.

The drain pan 172 is movable between a dew receiving position with respect to the indoor heat exchanger 171 and a removal position closer to the air outlet 20 in a state where the male screw 177 is inserted into the engagement hole 176. 10 can move forward and backward. The small diameter portion 176S and the large diameter portion 176L are arranged along the longitudinal direction of the housing 10 .

When the drain pan 172 is at the dew receiving position, the small diameter portion 176S corresponds to the female screw hole 178 and the screw fitting 175 is tightened by the male screw 177. As shown in FIG. As a result, the drain pan 172 is fixed at the dew receiving position.

To remove the drain pan 172 during maintenance, first loosen the male screw 177 without removing it. By loosening the male screw 177 in this manner, the drain pan 172 can move while being supported by the housing 10 .

Next, the drain pan 172 is moved forward to the removal position near the air outlet 20 so that the large diameter portion 176 of the engagement hole 176 is positioned above the female screw hole 178 . As a result, the screw fitting 175 is removed from the male screw 177 , so that the drain pan 172 can be removed from the housing 10 .

Thus, according to the present invention, the external thread 177 need only be loosened without being removed. Further, when the drain pan 172 is moved to the removal position, the left and right sides of the drain pan 172 are simultaneously removed from the male screws 177, so that the drain pan 172 can be lowered to the floor without being tilted.

Here, a procedure for attaching the drain pan 172 to the housing 10 will be described. First, the male screw 177 is loosened and then inserted into the large diameter portion 176L. At this time, as shown in FIG. 21d, the tip 172a of the drain pan 172 rests on the heat insulating material 20a on the side of the air outlet 20. As shown in FIG.

Next, as shown in FIG. 21e, the drain pan 172 is shifted in the direction of the left arrow to insert the male screw 177 into the small diameter portion 176S, and then, as shown in FIG. A tip portion 172a of 172 is abutted against the heat insulating material 20a on the air outlet 20 side.

"template"
Next, with reference to FIGS. 22a to 22c, the case where the ceiling type air conditioner 1 is installed on the wall using the L-shaped angle 70 will be described. According to the present invention, a template 80, shown in FIG. 22c, can be used to align the L-angles 70 for wall hanging installations.

Returning to FIG. 10, on the side panel 12, suspension brackets 129 for suspension bolts installed on the ceiling side (not shown) are provided at two locations on the left side panel 12L and two locations on the right side panel 12R, a total of four locations. is provided in

FIG. 22a shows the ceiling-suspended air conditioner 1 installed on the wall, and two L-shaped angles 70L and 70R on the left side and L-shaped angle 70R on the right side are used for the wall-suspended installation. be done.

The L-shaped angle 70 (70L, 70R) has a horizontal beam portion 710 arranged along the top panel 11 of the housing 10, and a vertical beam portion 720 substantially perpendicular to the horizontal beam portion 710. The beam portion 720 is attached to a wall surface or the like via a strong sheet metal mounting substrate (not shown), for example.

The suspension bracket 129 on the side panel 12 side is connected to the lateral beam portion 710 via a bolt or the like (not shown). Therefore, the horizontal beam portion 710 of the left L-shaped angle 70L is positioned above the left side of the housing 10, which is the left suspension position, and the horizontal beam portion 710 of the right L-shaped angle 70R is positioned at the right suspension position. should be aligned with the top of the right side edge of the housing 10, respectively.

Referring to FIG. 22c, the template 80 has dot marks 810 at two locations on the left side and two locations on the right side to indicate the positions of the suspension brackets 129 for aligning the suspension bolts from the ceiling with the suspension brackets 129. is displayed.

In addition to this, the template 80 can be applied to the case where the ceiling-suspended air conditioner 1 is wall-suspended by the L-shaped angles 70, 70, so that the L-shaped angles 70L, 70R and guide lines 820, 820 are drawn from the dot marks 810, 810 for alignment with the top of each right side edge.

In this embodiment, the template 80 includes a main plate 801 corresponding to the top panel 11 and a main plate 801 corresponding to the rear panel 14 in order to facilitate the arrangement of the template 80 along the L-shaped angle 70 . A bendable sub-plate 802 is included, and a guide line 820 for alignment of the L-shaped angle 70 is displayed from the dot mark 810 to the sub-plate 802 .

In use, the sub-plate 802 is placed on the wall surface, and the L-shaped angles 70L and 70R are aligned with the guide lines 820 and 820 and fixed to the wall surface or the like. After that, the ceiling suspension type air conditioner 1 is placed between the L-shaped angles 70L and 70R, and the suspension brackets 129 are connected to the respective L-shaped angles 70 by suspension bolts (not shown) or the like. In this way, the suspended air conditioner 1 can be quickly attached to the L-shaped angles 70L and 70R.

Since this type of ceiling-suspended air conditioner 1 is usually transported in a rectangular parallelepiped packaging box, the main plate 801 is printed on the top or bottom surface of the packaging box, and the sub plate 801 is printed on the side surface adjacent to the top or bottom surface. Plate 802 may be printed. In addition, the template 80 displays, for example, the piping position of the outside air introduction pipe, but since it is not directly related to the present invention, the explanation thereof is omitted.

1 Suspended Air Conditioner 10 Housing 11 Top Panel 12 (12L, 12R) Side Panel 129 Suspension Bracket 13 Front Panel 135 Angle Portion 135a Vertical Plate Portion 135b Horizontal Plate Portion 136 Engagement Hole 137 Bearing Bracket 137a Bearing Groove 138 engaging claw 14 rear panel 141 (141L, 141R) corner portion 15 (15L, 15R) side cover 151 upper region 152 lower region 153 boundary portion 154 step portion 155 flange portion 16 partition plate 17 heat exchanger chamber 171 indoor heat exchange vessel 172 drain pan 18 blower chamber 180 piping space 181 sirocco fan 20 air outlet 21 wind direction plate 23 wind direction plate main body 24 side plate portion 25 shaft support portion 30 air suction port 31 suction grille 313 side bar 313a tip side side bar 314 engaging piece 32 Air filter 33 Beam metal fitting 34 Pressing metal fitting 35 Auxiliary stay 40 Indicator 50 Electrical component box 520 Box body 530 Lid 540 First screwing part 550 Second screwing part 60 Hanging hook 601 Top part 602 Leg part 603 Shaft part 70 L Character angle 710 Horizontal beam part 720 Vertical beam part 80 Template 801 Main plate 802 Sub plate 810 Dot mark 820 Guide line

Claims (2)

A housing including a top panel, a front panel, a left side panel, a right side panel, and a rear panel is provided, and suspension brackets for suspension bolts from the ceiling are provided on each of the left side panel and the right side panel. In the template used when installing a ceiling-suspended air conditioner provided with
A dot mark indicating the position of the suspension bracket is provided, and the L-shaped angle is used for the ceiling suspension so that the ceiling-suspended air conditioner can be applied to a wall-suspended installation using a pair of left and right L-shaped angles. A template, characterized in that guide lines for aligning a left hanging position and a right hanging position of a type air conditioner are drawn out from the dot marks. A main plate corresponding to the top panel and a sub-plate corresponding to the rear panel are provided, the dot mark is displayed on the main plate, and the guide line is displayed from the dot mark to the sub-plate. 2. The template of claim 1, wherein the template comprises:

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