WO1999064792A1

WO1999064792A1 - Indoor unit of air conditioner

Info

Publication number: WO1999064792A1
Application number: PCT/JP1999/002760
Authority: WO
Inventors: Jyunji Nakamura; Tetsuya Yamashita; Kenji Koreeda
Original assignee: Daikin Industries, Ltd.
Priority date: 1998-06-08
Filing date: 1999-05-26
Publication date: 1999-12-16
Also published as: ES2251193T3; CN1195961C; JP3006590B2; CN1311848A; EP1087183B1; EP1087183A1; JPH11351608A; EP1087183A4

Abstract

An indoor unit of an air conditioner so designed that a top air inlet and its vicinity of the body casing can be cleaned easily. The indoor unit comprises a front air inlet (4) formed in the front of the body casing (1), the top air inlet (6) formed in the top of the body casing (1), and a detachable top grating panel (7) slidable in the front-to-rear direction of the body casing (1) and covering the top air inlet (6). To clean the top air inlet (6) and its vicinity, the cleaning person detaches the top grating panel (7) from the front grill (3), and can clean them, and wash them with water when necessary, in a safe posture while ascertaining the dirty portions and the extents in a short time with ease.

Description

Specification

Air conditioner indoor unit

Technical field

TECHNICAL FIELD The present invention relates to an indoor unit of an air conditioner having indoor air suction ports on a front surface and a top surface of a main body casing.

Background art

The wall-mounted indoor unit of the separate type air conditioner is generally provided with an indoor air intake port on the front surface of the main body casing and an air outlet on the lower side. Further, for example, an indoor unit in which an inverted V-shaped heat exchanger is provided in a main body casing and an air inlet for indoor air is provided on the top surface of the main body casing, for example, is disclosed in It is described in Japanese Patent Application Publication No. 9-1 4 684.

An example of the configuration of such an indoor unit will be described with reference to FIG. 2 which is an explanatory diagram of the present invention. The main body casing 1 having a substantially rectangular cross section is composed of a bottom frame 2 on the rear side (the left side in FIG. 2) fixed along the indoor wall surface, and a front grille 3 attached to the front side of the bottom frame 2. Inside the main body casing 1, an inverted V-shaped heat exchanger 11 and a blower fan 12 are arranged. A front inlet 4 is formed on the front of the front grill 3, and an upper inlet 6 is formed on the top. A front panel 5 having a front grille 5 a is attached to the front grill 3 so as to cover the front suction port 4. Is installed.

In the indoor unit having the above configuration, the indoor air is sucked into the main body casing 1 from the front suction port 4 and the top suction port 6, and is heated to a predetermined temperature or cooled when passing through the heat exchanger 11. After it becomes conditioned air, it is blown out from the outlet 10 into the room.

By the way, when such an operation is repeated, the clogging force S is gradually generated in the dustproof filter 8, and the dust in the air passing therethrough adheres to the front panel 5, and the dirt is gradually generated. .

Therefore, conventionally, as shown in FIG. 13, for example, as shown in FIG. 13, the front panel 53 can be opened by bowing the lower end side of the front panel 53 toward the front. In this state, the dustproof filter 55 can be pulled out downward and removed. Further, the front panel 53 is configured to be detachable from the front grille 52 of the main body casing 51 by pulling the front panel 53 toward the front in an inclined state as shown in the figure. Then, the dustproof filter 55 and the front panel 53 are detached from the main casing 51 so that they can be washed with water.

However, the conventional indoor unit of the air conditioner has a problem that a great deal of labor is required for cleaning around the upper surface suction port 54 shown in FIG. That is, although the top surface suction port 54 is provided with a top grid part 52 a as shown in the figure, dust in the air passing through the top grid part 52 a adheres to this top grid part 52 a as well. As a result, the same dirt as the front panel 53 occurs. Therefore, it is necessary to appropriately clean the top grid 52a.However, since such an indoor unit is usually installed near the ceiling, it is not necessary to clean the top grid 52a. For example, it must be done on a chair. In addition, even in this case, the top grid portion 52a is difficult to see, and it is difficult to remove dirt stuck to the top grid portion 52a during cleaning work in such a situation. For this reason, such cleaning work takes a long time and requires a lot of labor. Disclosure of the invention

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide an indoor unit of an air conditioner that can easily perform cleaning work around an upper surface suction port of a main casing. is there.

In order to achieve the above object, an indoor unit of an air conditioner according to the present invention has a front intake port formed on a front surface of a main body casing, and an upper surface intake port formed on a top surface of a main body casing. An air conditioner indoor unit comprising a heat exchanger and a blower fan provided on a ventilation path from an inlet to an outlet, wherein a top grid panel is provided to cover the upper suction port. The feature is that the panel is detachably mounted on the top surface of the main casing.

According to such a configuration, a top grid panel separate from the main body casing is provided at the upper suction port, and cleaning around the upper suction port can be performed by removing the top grid panel. It is possible to perform the cleaning work in a safe position and with appropriate washing while checking the location and degree of dirt, thereby making cleaning work shorter and easier.

The indoor unit of the air conditioner according to one embodiment is formed so that the ceiling grid panel is attached to and detached from the main body casing by sliding the top grid panel substantially along the front-rear direction of the main body casing. It is characterized by:

According to such a configuration, since the mounting and dismounting of the top grid panel is performed by sliding along the substantially front and rear direction of the main casing, the work space above the indoor unit required for the mounting and dismounting operation is reduced. Since the size of the indoor unit can be reduced as much as possible, and the indoor unit can be mounted near the indoor ceiling, the degree of freedom of the installation location can be secured.

In the indoor unit of the air conditioner of one embodiment, the front panel covering the front air intake Π is detachably attached to the main body casing, and is engaged with the front panel to prevent the mounted top panel from moving. It is characterized in that the locking part is provided on the top panel.

In this structure j ^, the locking portion that engages with the front panel is provided on the top grid panel. Therefore, unless the front panel is removed from the main casing, the top grid panel is connected to the top suction port of the main casing. Is held in a fixed state. Therefore, for example, safety can be ensured because the top panel is not accidentally detached even if the hands are put on the top grid panel when transporting and installing indoor units.

In the indoor unit of the air conditioner of one embodiment, a handle protruding forward is provided at the front edge of the top lattice panel as the locked portion, and the upper edge of the front panel overlaps the handle from above. It is characterized by being formed in.

According to this configuration, a handle that also functions as the locked portion is provided at the front edge of the top lattice panel, and the upper edge of the front panel is formed on the handle so as to overlap from above. In addition to ensuring safety, the handle is hidden under the front panel, improving the overall appearance.

In the indoor unit of the air conditioner of one embodiment, the dustproof filter has a substantially vertical state along the front suction port on the front side, a substantially horizontal state along the top suction port on the top side, and a front suction port. The dust filter is arranged in a curved state between the upper surface suction port and the dust filter is pushed up from below along the front surface suction port. The handle is positioned so as to face the curved arrangement area of the dustproof filter between the front suction port and the upper suction port so as to be guided rearward along the same.

According to such a configuration, even when the dustproof filter is mounted while being curved at the upper front side, the movement of the upper end side of the dustproof filter in the curved region is guided by the handle, so that the mounting operation is facilitated. It can be carried out. In addition, since it is not necessary to separately provide such a member dedicated to guidance, the overall configuration can be simplified.

An indoor unit of an air conditioner according to one embodiment includes a plurality of top lattice panels arranged side by side on a top surface of the main casing along a width direction of the main casing, and the top lattice panels have the same shape as each other. It is characterized by being formed in.

According to such a configuration, since a plurality of top lattice panels arranged side by side along the width direction of the main body casing have the same shape, even if the person once removed and reinstalled, for example, the left and right The mounting operation can be performed easily. Further, even when manufacturing the top grid panel, since it can be manufactured using, for example, the same injection mold, the manufacturing cost can be reduced. BRIEF DESCRIPTION OF THE FIGURES

1A to 1E show a procedure for removing a top grid panel in an indoor unit of an air conditioner according to an embodiment of the present invention, and FIG. 1A shows a procedure for removing the top grid panel to a front grill. Fig. 1B is a longitudinal section of the main part with the front panel removed, and Fig. 1C is a longitudinal cross-sectional view of the main part with the top grid panel slid slightly forward. FIG. 1D is an enlarged view of a portion D in FIG. 1C, and FIG. 1E is a longitudinal sectional view of a main part when the top grid panel is further slid forward.

FIG. 2 is a longitudinal sectional view showing the configuration of the indoor unit.

FIG. 3 is a plan view of the indoor unit.

FIG. 4 is a perspective view of the top grid panel. 5A to 5E show the main components of the top lattice panel. FIG. 5A is a plan view on the left end, FIG. 5B is a side view, and FIG. 5C is a plan view seen from below. 5D is a cross-sectional view taken along line AA in FIG. 5, and FIG. 5E is an enlarged view of a portion B in FIG. 5B.

6A and 6B show the left end side of the front grille in the indoor unit. FIG. 6A is a plan view, and FIG. 6B is a front view of the upper side.

FIG. 7 is a sectional view taken along line CC in FIG.

FIG. 8 is a longitudinal sectional view of a main part showing a state when the dustproof filter is mounted in the indoor unit.

9A to 9E show a main part configuration of an indoor unit of an air conditioner according to another embodiment of the present invention. FIG. 9A is a plan view on the left end side, and FIG. -E line cross-sectional view, Fig. 9C is a cross-sectional view taken along line FF in Fig. 9A, Fig. 9 D is a cross-sectional view taken along line GG in Fig. 9A, Fig. 9 E is Fig. 9 FIG. 2 is a sectional view taken along line HH in A. Figs. 10A and 10B show the procedure for removing the top grid panel from the indoor unit shown in Fig. 9. Fig. 10A shows the main parts when the handle of the top grid panel is lifted slightly upward. FIG. 10B is a longitudinal sectional view of a main part when the top lattice panel is slid forward from above.

FIGS. 11A to 11C show a main part configuration of an indoor unit of an air conditioner according to still another embodiment of the present invention. FIG. 11A is a plan view on the left end side, and FIG. Is a sectional view taken along the line II in FIG. 11A, and FIG. 11C is a sectional view taken along the line JJ in FIG. 11A.

Fig. 12A and Fig. 12B show the removal procedure of the top grid panel in the indoor unit shown in Fig. 11, and Fig. 12A shows when the front edge of the top grid panel is lifted slightly upward. Fig. 12B is a vertical sectional view of the main part when the top grid panel is pulled out diagonally forward from above.

FIG. 13 is a perspective view of an indoor unit of a conventional air conditioner. BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1)

Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 2 shows an indoor unit of the separate type air conditioner according to the present embodiment. The indoor unit includes a main body casing 1 having a substantially rectangular cross section. The main body casing 1 includes a bottom frame 2 on the rear side (the left side in FIG. 2) fixed along the indoor wall surface, and a front side of the bottom frame 2. And the front darinore 3 attached to the front. The front grille 3 is further provided with a front panel 5 having a front lattice portion 5a so as to cover the front opening (front suction port) 4. In addition, an upper surface suction port 6 is formed on the top surface of the front grill 3, and the upper surface suction port 6 is provided with a later-described top surface grid panel 7 that covers the upper surface suction port 6. Further, a dustproof filter 8 is mounted along the front suction port 4 and the top suction port 6.

On the other hand, an outlet 10 provided with a horizontal flap 9 and a vertical flap (not shown) is formed on the lower front side of the main body casing 1. In the main body casing 1, a condenser (for heating operation) and an evaporator (for cooling operation) in the refrigerant circuit are provided on the ventilation path from the front suction port 4 and the top suction port 6 to the blowout port 10. A functioning heat exchanger 11 and a blower fan 12 composed of a cross-floor fan are sequentially arranged.

The heat exchanger 11 is composed of a front heat exchanger 11a and a rear heat exchanger 11b combined in an inverted V-shape.The front heat exchanger 11a and the rear heat exchanger The blower fan 12 is disposed between each lower end of the container 11b. The surface of the bottom frame 2 extending from the rear of the blower fan 12 to the outlet 10 is formed as a smoothly curved scroll portion 2b. At the lower end of the front-side heat exchanger 11a, a drain pan 13 is provided to receive the drain water generated in the front-side heat exchanger 11a, and the rear-side heat exchanger 11b A lower drain pan 14 for receiving drain water generated in the heat exchanger 11 b is also provided at the lower end of the heat exchanger 11 b.

In the indoor unit having the above configuration, when the blower fan 12 is driven, the room air is sucked into the main body casing 1 from the front suction port 4 and the top suction port 6 through the dustproof filter 8. The room air sucked through the front suction port 4 passes through the front-side heat exchanger 11a, and is heated or cooled to a predetermined temperature to be conditioned air at this time. In addition, the room air sucked through the upper surface suction port 6 passes through the upper side of the front side heat exchanger 1a located below and the rear side heat exchanger 11b, and at this time, the above Similarly, it is heated or cooled to form conditioned air. The conditioned air is blown into the room from the air outlet 10 by the blower fan 12, whereby the operation of keeping the room temperature close to the set temperature is continued.

In this case, the heat exchange capacity of the heat exchanger 11 is, for example, a heat exchange shape in which the front heat exchanger 11 a is extended along the upper end by the rear heat exchanger 11 b. It is almost equal to a container. Therefore, it is possible to configure the indoor unit with a reduced size in the height direction without reducing the heat exchange capacity.

By the way, when the above operation is repeated, the dust filter 8 that collects dust in the indoor air gradually becomes clogged, and the dust of the air passing therethrough adheres to the front panel 5. Then, the front panel 5 gradually becomes dirty. Therefore, the front panel 5 of the indoor unit described above, like the conventional example described with reference to FIG. 13 described above, revolves around the upper end by pulling the lower end toward the front. The front panel 5 can be opened from the main casing 1 by tilting the front panel 5 to, for example, about 45 degrees.

With the front panel 5 opened in this way, the dustproof filter 8 can be pulled out from the main casing 1 by pulling it downward, and the front panel 5 can be tilted as described above. The front panel 5 can also be detached from the case 1 by pulling the whole toward you. As described above, the dustproof filter 8 and the front panel 5 can be detached from the casing 1 of the main body, and can be washed with water.

Further, in the present embodiment, the above-mentioned top grid panel 7 can also be detached from the main casing 1. Hereinafter, the configuration of the top grid panel 7 and the front grill 3 to which it is attached will be described in detail. Will be described. On the top side of the front grill 3, as shown in Fig. 3, a beam-shaped central support portion 3a extending from the back side to the front side is provided substantially at the center of the indoor unit in the width direction. Top grid panels 7, 7 are mounted on both sides of the central support 3a. These panels 7, 7 have substantially the same shape as each other, and have the same structure for attachment to the front grille 3. Therefore, the left top panel 7 in the figure will be described below as an example.

The top grid panel 7 is made of, for example, a synthetic resin such as polypropylene. As shown in FIG. 4, a plurality of horizontal rails 22 ... and vertical rails 23 ... are provided in a lattice shape inside a substantially rectangular outer frame 21, and the front side (the lower right side in Fig. 4) Is formed so as to be lowered forward. In the following, for each straight line portion of the outer frame 21 along the four sides of the rectangle, the lower left straight line portion in Fig. 4 is the left frame 21a, and the upper right straight line parallel to this is the right frame 21b. The front straight line portion between the left and right frames 21a and 21b will be referred to as a front frame 21C, and the straight line portion at the back will be referred to as a rear frame 2Id.

On the bottom side of the rear frame 2Id, rear protrusions 24, 24 protruding rearward are formed at two places along the width direction of the top lattice panel 7. In addition, a handle 25 protruding forward from the bottom side of the front frame 21C is provided over substantially the entire length of the front frame 21C. The handle 25 is formed at a substantially central portion in the width direction where a fingertip is hung when the top lattice panel 7 is pulled out from the main body casing 1 described later.

On the other hand, the left frame 21a has an outwardly widened portion 26 protruding outward in the width direction from the side surface at the bottom side, and as shown in FIG. 5A, substantially along the left frame 21a. It is provided over the entire length. As shown in FIG. 5B, the outer widened portion 26 has a left frame 2 at the front end.

1a, a hook-like portion 26a having a vertical surface portion substantially flush with that of the left frame 21a is provided on the rear surface of the hook-like portion 26a. I have.

Further, on the bottom side of the left frame 21a, as shown in FIG. 5A, an inward widened portion 27 protruding inward in the width direction (upward in FIG. 5A) is provided. It is further provided over the entire length of 21a. The lower surface of the inner widened portion 27 is also formed flush with the bottom surface of the left frame 21a. Accordingly, as shown in FIG. 5C, the bottom side of the left frame 21a is provided with the above-mentioned outer widened portion 26 and inner widened portion 27 on both sides, It is formed wider than the upper side.

An outer guide projection 26 extending in the front-rear direction along the outer end of the lower surface is provided on the rear side of the outer widened portion 26. Each of the inner guide projections 27a extends along the entire length along the one end, and each of them has a downwardly projecting shape as shown in FIG. 5D.

On the other hand, in part B shown in FIG. 5B, that is, at a position slightly forward of the center in the front-rear direction, as shown in FIG. 5C, the outward widened part 26 and the left frame 21 a On each underside of An engaging recess 28 extending across is provided. As shown in FIG. 5E, the engagement concave portion 28 is formed in a concave shape that is recessed upward from the lower surface.

As described above, the configuration in which the outer widened portion 26 and the inner widened portion 27 are provided on both sides of the left frame 21a is provided in the right frame 21b of the top lattice panel 7 shown in FIG. Along the center, the top grid panel 7 is provided symmetrically with respect to the center of the grid panel 7.

FIGS. 6A and 6B show a configuration on the top side of the front grille 3 on which the above-mentioned top grid panel 7 is mounted. As shown in FIG. 6A, the front grille 3 includes a top panel 31 that forms the outer wall of the top of the indoor unit. The top panel 31 has the upper surface inlet 6 in front. It is formed in the shape of a notch from the edge. The top grid panel 7 has an upper surface that is flush with the top panel portion 31 and, as shown by a two-dot chain line in FIG. The front grille 3 is mounted so as to be almost fitted to the inner periphery of the front grille. Hereinafter, a portion on the left side of the upper surface suction port 6 in the top panel portion 31 will be described as a side top panel portion 31a.

On the lower side of the top panel 31, there is further provided an inner wall panel 3 3 in which an internal opening 32 corresponding to the inner peripheral shape of the outer frame 21 of the top grid panel 7 is formed. A region on the left side of the internal opening 32 in the panel portion 33 is formed as a side edge support portion 34 having a shape extending forward substantially in parallel with the side top panel portion 31a.

As shown in FIG. 6B, the upper surface of the side edge support portion 34 projects upward to a position slightly offset rightward from immediately below the inner edge of the side top panel portion 31a. The ridge 35 is formed in a shape extending in the front-rear direction.

The top grid panel 7 is mounted on the front grill 3 with the left frame 21 a of the top grid panel 7 placed on the ridge 35. At this time, the outer guide portion 26 b and the inner guide protrusion 27 of the outer widened portion 26 and the inner widened portion 27 on both sides of the left frame 21 a described above sandwich the protrusion 35. As described later, when the top lattice panel 7 is pulled out or inserted from the front as described later, the sliding operation of the top lattice panel 7 is guided in the front-rear direction. You.

Also, with the top grid panel 7 attached to the front grill 3 as described above, As shown in FIG. 6A, the outer widened portion 26 is located below the side top panel portion 31a, whereby the upward movement of the top grid panel 7 is prevented. Be regulated. In addition, the rear frame 2 Id described above is provided on the rear frame 2 Id of the top grid panel 7, but the rear panel of the front grill 3 has a top panel 31 and an inner wall panel 3. An engagement hole 36 is formed in a vertical wall 3 b (see FIG. 6B) that connects the first and the third to each other. The mounting state is such that the rear projection 24 is fitted into the engagement hole 36 from the front, thereby also restricting the upward movement of the top lattice panel 7. On the other hand, as shown in FIG. 7, a locking projection 35a is formed on the upper surface of the ridge 35. When the top grid panel 7 is mounted on the front grill 3, the locking projections 35a are fitted into the engagement recesses 28 on the lower surface of the left frame 21a, whereby the top grid panel is It is configured to be in a locked state where the position in the front-rear direction of 7 is regulated.

In FIG. 7, the front panel 5 is additionally indicated by a two-dot chain line. A shaft 37 is provided on the inside of the upper end of the front panel 5, and a support recess (not shown) into which the shaft 37 fits is provided at the end of the front grill 3 (on the front side of the drawing). It is configured to support the front panel 5. As described above, the front panel 5 can be rotated around the shaft portion 37 as shown by the arrow in FIG. 7 to open it, and furthermore, it is opened at about 45 degrees. The front panel 5 is detached from the front grill 3 by pulling the front panel 5 forward (to the right in FIG. 7) in the inclined state.

Next, a procedure for removing the top grid panel 7 having the above configuration from the front grill 3 will be described. Note that the two-layer structure of the side top panel 31a and the side edge support 34 on the left end side of the front grill 3 has the same structure as the center support 3a shown in FIG. In order to support the right frame 21b side of the lattice panel 7, it is provided along the left edge in a symmetrical configuration with the above. In order to support the right top grid panel 7 in FIG. 3, the same structure as described above is also provided on the right edge of the center support portion 3a and the right end side of the front grille 3 sandwiching it in the width direction. ing. Therefore, in FIG. 3, when the left top grid panel 7 is removed, the following operation state on the left frame 21 a side simultaneously occurs on the right frame 21 b side, and the right top panel Lattice panels 7 Can be removed by the same procedure.

FIG. 1A is a cross-sectional view of the left frame 21 a side with the top grille panel 7 attached to the front grill 3. At this time, the grip 25 on the top lattice panel 7 is pressed from above on the upper edge side of the front panel 5. Accordingly, this also prevents the top grid panel 7 from moving upward and forward, and is fixed and held in the upper suction port 6 of the front grill 3.

When removing the top grid panel 7 from this state, first, as shown in FIG. 1B, the front panel 5 is removed from the front Grinolet 3 force as described above. Thereby, the handle 25 of the top lattice panel 7 is exposed to the front side. Therefore, by performing an operation of putting a fingertip on the recessed portion 25 a of the handle 25 and pulling it toward the user, the top lattice panel 7 slides forward along the upper surface of the ridge 35. Will be.

At this time, from the state in which the locking projections 35 a of the ridges 35 are fitted into the engagement recesses 28 in the top lattice panel 7, as the engagement recesses 28 move forward, synthetic resin is used. The top lattice panel 7 is pushed upward by the locking projections 35a and is slightly elastically deformed. As a result, as shown in FIGS. 1C and 1D, the surface behind the engagement recesses 28 rides on the engagement protrusions 35a, and the engagement recesses 28 are engaged. The buckled state in which the projection 35a is fitted is released.

Thereafter, by continuing the operation of sliding the top grid panel 7 forward, the top grid panel 7 moves forward as shown in FIG. 1E, and the top grid panel 7 is removed from the front grill 3. It is.

When the top lattice panel 7 removed as described above is washed with, for example, water and the like, together with the front panel 5, and then reattached, the reverse procedure is performed. That is, the top grid panel 7 is attached by attaching the rear frame 2 Id side to the side edge support portion 34, the ridge portion 35 on the upper surface, and the ridge portion similarly provided on the center support portion 3 a. It is carried out by putting it on each front end side with a part (not shown) so as to straddle them and pushing it backward from this state. In the course of this operation, for example, the outer widened portion 26 of the left frame 21 a in the top grid panel 7 is, as shown in FIG. 1E, a side top panel portion 31 a and a side edge support portion 3. 4 and then push in until the rear end of the top grid panel 7 contacts the vertical wall 3 b of the front grill 3 as shown in FIG. 1A. By continuing the operation, the mounting of the top grid panel 7 is completed. At this time, the rear projection 24 provided on the rear frame 2 Id of the top lattice panel 7 is in a state of being fitted into the engagement hole 36 formed on the vertical wall 3 b. The locking projections 35a of the ridges 35 are fitted into the engagement recesses 28 of the top lattice panel 7 from below, and are held in a buckled state in which removal to the front is suppressed.

After that, the front panel 5 is attached to the front grille 3 in the reverse order to the above, so that the handle 25 of the top grid panel 7 is pressed down from above by the front panel 5, as described above. The top grid panel 7 is assembled in a state where it is fixed in the upper suction port 6 of the front grill 3.

Note that, as described above, the dustproof filter 8 is further attached to the lower side of the top grid panel 7. The dustproof filter 8 is formed to have a width substantially equal to each inner dimension of the left frame 21 a and the right frame 21 b in the top grid panel 7. In order to support the dustproof filter 8 from the inside, the front grille 3 is provided at a position corresponding to both side edges of the dustproof filter 8 in the width direction, as shown in FIG. Box 3 C ... is further provided.

The dustproof filter 8 is removed and cleaned, and then, when the dustproof filter 8 is attached, the dustproof filter 8 is pushed up from below along the support frame 3C. At this time, as shown in FIG. 8, the handle 25 of the top grid panel 7 is positioned obliquely above the curved portion where the support frame 3C extends from the front side to the top side. ing. Further, the dimension between the handle 25 and the support frame 3C is configured to gradually narrow from the front side toward the rear.

Therefore, in the process of pushing up the dustproof filter 8 along the support frame 3C, the tip of the dustproof filter 8 comes into contact with the lower surface of the handle 25 at the above-mentioned curved portion of the support frame 3C. It will be guided backward along. As described above, when the dustproof filter 8 is mounted, the handle 25 of the top grid panel 7 guides the dustproof filter 8 so as to turn backward at the curved portion. The mounting operation of the filter 8 can be easily performed.

(Embodiment 2)

Next, another embodiment of the present invention will be described with reference to FIGS. 9A to 9E and FIG. This will be described with reference to 10B. Members having the same functions as the members described in the first embodiment are denoted by the same reference numerals, and detailed description will be omitted.

9A to 9E show the configuration of the left side of the indoor unit in the present embodiment. In this embodiment, as shown in FIG. 9B, a top grid panel 7 shown in FIG. 9A has a plurality of horizontal rails 22 and vertical rails 23 formed in a grid pattern as in the first embodiment. It is configured with The left frame 21 a of the outer frame 21 surrounding them and the right frame 21 b (not shown) are different from those of the first embodiment, and the left frame 21 a will be described as an example in the same manner as described above. As shown in FIG. 9C, the left frame 2 la is provided with an upper widening portion 41 extending outward in the width direction (downward in FIG. 9C) from the upper end side. Further, a connecting portion 42 extending outward in the same manner as described above is provided on the lower side.

As shown in FIG. 9D, the upper widened portion 41 is formed over the entire length of the upper end side of the left frame 21a, and the connecting portion 42 is formed at a position halfway in the front-rear direction on the lower end side of the left frame 21a. It is formed in a local area. As shown in FIG. 9E, a substantially inverted trapezoidal position restricting portion 43 is provided in front of the left end side (front side in the drawing) of the connecting portion 42.

On the other hand, the front grille 3 is provided with a side intermediate wall 44 extending forward from an intermediate height position on the vertical wall 3b, and a front end side of the side intermediate wall 44 and a lower side thereof. The top lattice panel 7 is mounted on the front grill 3 with the position restricting portion 43 fitted from the front between the side edge supporting portion 34 of the front grille 3. As described above, with the configuration in which the position restricting portion 43 is sandwiched between the side intermediate wall 44 and the inner wall panel portion 33 from above and below, the vertical movement of the top lattice panel 7 is restricted.

Further, a locking projection 44 a protruding upward is formed at the tip of the side intermediate wall 44, and an engagement projection 41 a protruding downward is provided on the lower surface of the upper widening portion 41. ing. The engaging projection 41a is configured to come into contact with the locking projection 44a from the rear in the mounted state as shown in the drawing, whereby the front of the top grid panel 7 is formed. Has also been blocked.

To remove the top grid panel 7 in such a configuration, first remove the front panel (not shown) from the front grill 3 as in the first embodiment, and then lift the handle 25 slightly upward. It is performed by the operation of pulling forward. That is, as shown in Figure 1 OA By lifting the handle 25 slightly upward, the position restricting portion 43 is screwed into the connecting portion 42 while being positioned between the side intermediate wall 44 and the side edge supporting portion 34. As a result, the left frame 21 a and the upper widened portion 41 move upward together with the handle 25. As a result, the engaging projection 41 is positioned above the locking projection 44a, and by pulling the handle 25 forward, as shown in FIG. a can be in the unlocked state, which is located forward of the locking projections 4 4 a. Thereafter, as the operation of pulling the handle 25 forward is continued, the top grid panel 7 is pulled out and the front The top grille panel 7 is attached to the front grill 3 by removing it from the grill 3 and in the reverse procedure.

(Embodiment 3)

Next, still another embodiment of the present invention will be described with reference to FIGS. 11A to 11C and FIGS. 12A and 12B.

In the top lattice panel 7 in the first embodiment, a handle 25 located below the front panel 5 and an outward widening section located below the side top panel 31a are provided. 26, which can be attached to and detached from the front grille 3 by sliding in the front-rear direction, the top grid panel 7 in this embodiment has a structure as shown in FIGS. 11A and 11B. However, the above-mentioned handle 25 and the outer widened portion 26 are not provided, and therefore, the top grid panel is provided so that the front panel 5 can be lifted upward even when the front panel 5 is attached to the front grill 3. The outer peripheral shape of 7 is formed substantially the same as the upper surface suction port 6. However, in order to prevent upward withdrawal except by manual removal operation, Fig. 11

As shown in C, a pin-shaped lock portion 45 protruding downward is provided on the front end side of each lower surface of the left frame 21a (and the right frame 21b), and supports the side edge of the front grille 3. A locking hole 46 through which the lock portion 45 penetrates is formed in the portion 34.

At the tip end of the lock portion 45, an engagement portion 45a slightly larger than the inner diameter of the engagement hole 46 is provided, and the engagement portion 45a is By pushing this lock part 45 into the locking hole 46 so that it is located below the bottom part 46, the upward movement of the top lattice panel 7 front end side is prevented unless external force acts, In addition, it is in a mounted state where movement in the front-rear direction is also prevented.

Furthermore, as shown in FIG. 11A, the rear frame 2 Id of the top grid panel 7 includes: A rear projection 24 extending over the entire length thereof is formed. The rear projection 24 is inserted into an engagement recess 47 formed in a vertical wall 3 b of the front grill 3 as shown in FIG. 11C. With the fitting state fitted from above, the rear end side of the top grid panel 7 is also in a state where upward movement is prevented.

When removing the top grid panel 7 in such a configuration, first remove the front frame 2

An operation is performed in which both ends in the width direction of the horizontal rail 22 on the 1C side are gripped with a fingertip and lifted. When a lifting force acts on the front end side of the top grid panel 7 as described above, the locking portion 45 a front end engaging portion 45 a engages the locking hole 46 as shown in FIG. 12A. The lock part 45 is pulled upward from the locking hole 46. As a result, the locked state of the front end side of the top grid panel 7 is released, and then the top grid panel 7 is pulled out diagonally upward in the front, so that the rear projection 24 is formed as shown in FIG. 12B. 3 is pulled out from the recess 4 7, the locked state of the rear end side is also released, and the top grid panel 7 is removed from the front grille 3. A grid panel 7 is attached to the front grill 3.

As described above, in each of the above embodiments, the top grille panel 7 that covers the upper surface suction port 6 formed in the front grill 3 of the main body casing 1 is provided separately from the front grill 3, Since the top grid panel 7 is detachably attached to the front grill 3, the top grid panel 7 can be removed from the front grill 3 to clean the top grid panel 7 safely, While confirming the location and degree, washing can be performed with water as appropriate, so that the cleaning work can be performed in a shorter time and more easily.

In particular, in Embodiments 1 and 2, since the top grid panel Ί is attached and detached by sliding along the substantially front-rear direction of the indoor unit, the work above the indoor unit necessary for this attaching / detaching operation is required. The space can be made as small as possible. Therefore, the indoor unit can be installed near the indoor ceiling, and the degree of freedom of the installation location can be secured.

Also, in the top grid panel 7 in the first embodiment, the outer widened portion 26 protruding from the left and right frames 21 a and 21 b is located below the top panel portion 31, and the rear projection 2 4 is inserted into the engagement hole 3 6 of the front grill 3 so that it cannot be pulled out upward. In addition, the handle 25 is positioned below the upper edge of the front panel 5 so that the top grid panel 7 and the front grill 3 can also be used unless the front panel 5 is removed from the front grill 3. It has a configuration that can be securely held. Therefore, for example, when the indoor unit is tilted moderately during transportation and installation of the indoor unit, it does not come off accidentally even if the user touches the top grid panel 7 so that safety is ensured. You. In addition, the handle 25 is hidden under the front panel 5 so that the overall appearance is improved.

Further, as described above, the handle 25 is configured to have a guiding function when the dustproof filter 8 is mounted. That is, the dustproof filter 8 is substantially vertical along the front suction port 4 on the front side of the indoor unit, substantially horizontal along the top suction port 6 on the top side, and has the front suction port 4 and the top suction port 6. When the dust-proof filter 8 is pushed up from below along the front suction port 4 for mounting, the upper end of the dust-proof filter 8 is attached to the handle 25. The handle 25 is positioned so as to face the curved arrangement area of the dustproof filter 8 from above so as to be guided rearward along the lower surface of the filter. Therefore, even when the dustproof filter 8 is mounted while being curved on the upper front side as described above, this mounting operation can be easily performed. Further, since there is no need to separately provide a dedicated member for guidance as described above, the overall configuration can be simplified.

Furthermore, in each of the above embodiments, the two top surface grid panels 7 are arranged side by side on the top surface of the main body casing 1, but these top surface grid panels 7 have the same shape as each other, and It can be attached to the front grill 3 without exception. As a result, even if the user once removes and re-attaches, the user can perform the operation independently of the left and right, which also facilitates the attaching operation. Also, when manufacturing the top lattice panel 7, since it can be manufactured using, for example, the same injection molding die, the manufacturing cost can be further reduced.

Although specific embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention. For example, in the first and second embodiments, the handle 25 is also used as a locked portion for engaging with the front panel 5 and preventing the top lattice panel 7 from moving. For example, the handle 25 is provided only in the central region of the front frame 21C, and the protrusions functioning as the locking portions are separately provided on both ends of the front frame 21C. Is also possible.

Further, in each of the above embodiments, an indoor unit having a configuration in which two top lattice panels 7 are arranged side by side on the top surface is taken as an example, but an indoor unit configured with one top lattice panel is provided. The present invention can also be applied to a large-sized indoor unit including three or more ceiling grid panels. Industrial applicability

As described above, the indoor unit of the harmony device according to the present invention has an air intake port on the top surface, and a ceiling grid panel that covers the air intake port on the top surface has a detachable structure. The surface can be easily cleaned. For this reason, it is suitable for use in wall-mounted indoor units that are installed at a high place with an air intake port on the large surface.

Claims

The scope of the claims

1. A front suction port (4) is formed in the front of the main body casing (1), and a top suction port (6) is formed in the top surface of the main body casing (1), and both the suction ports (4) and (6) are formed. An air conditioner indoor unit comprising a heat exchanger (1 1) and a blower fan (1 2) on a ventilation path extending from the air outlet (10) to the air outlet (10). An indoor unit for an air conditioner, characterized in that a top grid panel (7) is provided to cover the ceiling, and the top grid panel (7) is detachably attached to the top face of the main body casing (1). .

2. The indoor unit for an air conditioner according to claim 1, wherein the top grid panel (7) is attached to and detached from the main body casing (1) by attaching the top grid panel (7) to the main body casing (1). An indoor unit for an air conditioner, characterized in that the indoor unit is formed so as to be slid along substantially the front-rear direction of 1).

3. A front panel (5) for covering the front suction port (4) is detachably attached to the main body casing (1), as in the indoor unit of the air conditioner according to claim 2. The top grid panel (7) is provided with a locked portion that engages with the front panel (5) to prevent the mounted top grid panel (7) from moving. An indoor unit of an air conditioner.

4. The indoor unit for an air conditioner according to claim 3, wherein a handle (25) protruding forward is provided at the front edge of the top grid panel (7) as the locked portion. An indoor unit for an air conditioner, wherein an upper edge side of the front panel (5) is formed so as to overlap the upper side of the front panel (5) from above.

5. The indoor unit for an air conditioner according to claim 4, wherein the dustproof filter (8) is arranged substantially vertically along the front suction port (4) on the front side, and the upper surface suction port (4) on the top side. 6), it is arranged in a curved state between the front suction port (4) and the top suction port (6), and the dustproof filter (8) is connected to the front suction port (6). Four ) When attaching the dustproof filter (8) by pushing it upward from below, the handle (25) is guided so that the upper end of the dustproof filter (8) is guided rearward along the lower surface of the handle (25). The air conditioner is characterized in that it is positioned so as to face from above the curved area of the bay of the dustproof filter (8) between the front suction port (4) and the top suction port (6). Machine indoor unit.

6. The indoor unit for an air conditioner according to any one of claims 1 to 5, wherein a plurality of ceilings are provided on a top surface of the main body casing (1) along a width direction of the main body casing (1). An indoor unit for an air conditioner, characterized in that the surface lattice panels (7) are arranged side by side and these top surface lattice panels (7) are formed in the same shape.