JP3170549B2 - Air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, an air conditioner of a wall-embedded type, and more particularly, to an improvement in a grill structure attached to and fixed to a front opening of an air conditioner body constituting an indoor unit.

[0002]

2. Description of the Related Art In an air conditioner in which an indoor unit and an outdoor unit are separated from each other, an indoor unit of a type frequently used is a so-called wall-mounted type, and is mounted on a wall surface of a room to be air-conditioned.

[0003] This can be retrofitted into an existing room to be air-conditioned, and the installation location can be freely selected, but the indoor unit projects into the room and gives a certain feeling of oppression.

On the other hand, in the case where a space for mounting the indoor unit can be secured in advance in the wall of the room to be air-conditioned, adopting a wall-embedded type does not give a feeling of oppression, which is extremely convenient in terms of aesthetics.

In order to mount this kind of indoor unit, a mounting opening is provided on the wall surface of the room to be air-conditioned, the front surface is opened at the mounting opening, and refrigeration cycle equipment such as a heat exchanger and a blower are provided inside. Will be fitted into the unit main body for housing and disposing.

Conventionally, the front opening of the unit main body is shown in FIG.
Is closed by a grill body A as shown in FIG. That is, a is a rectangular main frame, and a partition frame b is provided in parallel with the lower side of the main frame a, and the inside of the main frame a is vertically divided into two. A suction grill c is pivotally supported on the upper side from the partition frame b so as to be openable and closable, and an outlet d is provided on the lower side.

More specifically, a plurality of fixing pieces are provided on the inner peripheral portion of the main frame a, and the main frame a is mounted and fixed to the front frame of the unit main body via fixing tools such as mounting screws. It is fitted into this front opening (both not shown).

The upper end of the suction grille c is connected to the main frame a via a hinge (not shown), and is rotatably supported. Further, grill stoppers e are provided on both side ends, and the angle is maintained when the suction grill c is rotated by a predetermined angle and opened.

An air filter f is removably inserted inside the suction grill c. That is, it is desirable for the user to periodically open the suction grille c to take out the air filter f, remove the dust trapped therein, and insert the air filter f again at a predetermined position. The outlet d is provided with a louver g in the vertical direction, so that the direction in which the heat exchange air is blown into the room to be air-conditioned can be adjusted.

[0010]

The grille A on the front side of the indoor unit constructed as described above does not have any functional problems, but it is difficult to assemble and handle by the user. Have problems.

That is, when the indoor unit is actually installed, a rectangular mounting opening is provided on the wall surface of the room to be air-conditioned, and a rectangular reinforcing bar is provided inside the wall surface along the opening.

An installation frame attached to the indoor unit is inserted into the reinforcing bar, its front-rear position is determined, so-called outgoing adjustment is performed, and the mounting frame is fixed by a fixture. The installation frame is also formed in a rectangular shape, and the unit body is inserted into the installation frame from the near side. The unit body is mounted in a state where the front opening is opened, that is, in a state where the grill body A is removed.

When the mounting of the unit body is completed, the grille A in which the suction grille c and the vertical louver g are integrated with the main frame a as described above is mounted on the front opening.

More specifically, the fixing piece provided on the main frame a is attached to the front surface of the unit body via a fixing tool (both not shown). Work is not possible due to being blocked by grill c.

Then, the suction grille c is rotated to open the opening, and the position is held by the grill stopper e. The air filter f is removed to expose the fixing piece, and the fixing piece is attached.

However, the opening angle of the suction grill c is only an angle (about 45 °) that does not hinder the insertion and removal of the air filter f. Therefore, it is necessary to insert a fixing tool and a fastening tool in a posture looking into the inside from the opening formed between the opened lower end edge of the suction grille c and the partition frame b to perform an attaching operation. ,
The workability is extremely poor.

Further, this type of air conditioner is frequently used in a type capable of cooling and heating operation, and dust is likely to adhere to the suction grille c itself from a place where the air conditioner is used throughout the year. Dust not captured by the air filter f may adhere to a heat exchanger or the like disposed in the unit body.

Therefore, it is desirable for the user to not only remove the dust trapped in the air filter f, but also remove dust adhering to the suction grille c and clean the inside of the main body.

However, since the suction grille c is pivotally supported by the main frame a and has a structure that cannot be removed, it is necessary to extend the hand to the suction grille c at a high place for cleaning, and to open the grille c. Since the angle is small, cleaning the inside of the unit main body is impossible at all, and the workability is poor.

The present invention has been made in view of the above circumstances, and an object of the present invention is to improve the workability of attaching the main frame to the air conditioner main body and to facilitate the cleaning work for the suction grille. In addition, it is an object of the present invention to provide an air conditioner that facilitates cleaning of the inside of the main body and can improve workability for a user.

[0021]

Means for Solving the Problems] In order to satisfy the above object, an air conditioner of the present invention includes an air conditioner main body having an opening on the front, it is mounted and fixed to the front opening of the air conditioner body The grill body has an outlet formed in a part thereof, has a grill mounting opening, and is mounted and fixed to a front opening of the air conditioner main body. A frame; and a suction grille which is fitted into the grill mounting opening of the main frame at the time of attachment and detachment .

Further, the main frame has a catch groove formed in a concave cross- section on the inner peripheral surface of the upper and lower sides of the grill mounting opening, and the suction grill has hook protrusions at upper and lower ends thereof. The engaging projection is detachably engaged with the engaging groove of the grille mounting opening .

Further, the main frame is moved toward the upper side engaging groove .
A fitting having a guide portion, which is an inclined surface extending obliquely, is attached, and a base end of an upper side engaging projection of the suction grill is provided with an inclination along the inclination of the guide portion of the receiving fitting. A surface is formed.

[0024]

The grille provided at the front opening of the main body of the air conditioner is composed of a main frame and a suction grill which is removably fitted into the grill mounting opening of the main frame. It can be easily attached to the machine body, cleaning the suction grill and cleaning the inside of the machine body.

[0025]

An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 2, the indoor unit of the air conditioner is configured. The indoor unit includes a unit body 1
And a grill 3 provided in the front opening 2 of the unit body 1. Then, the unit main body 1 is inserted into the installation frame 4 and attached.

As shown in FIG. 5, the installation frame 4 is a rectangular frame having open front and rear end faces and formed in a rectangular shape. , 5 in which fixing screws 6, 6 are inserted. Further, a front frame 7 in which a metal plate is bent into an L-shaped cross section is provided along the front peripheral portion, and one piece of the front frame protrudes toward the front side.

The installation of the installation frame 4 is as shown in FIGS. That is, a rectangular opening 9 is provided in advance on the wall surface 8 of the room R to be air-conditioned, and a rectangular reinforcing bar 10 having a predetermined distance from the opening, that is, a rectangular reinforcing bar 10 having a size slightly larger than the opening. , Provided inside the wall surface 8.

The installation frame 4 is inserted into the inside of the reinforcing bar 10, and its position is adjusted, and the mounting frame 4 is mounted and fixed by the fixing screws 6, 6. Actually, the projecting piece 7a of the front frame 7 provided on the front surface of the installation frame 4 is inserted into the opening 9 provided on the wall surface 8.
Is provided, setting of the optimum position of the front frame 7 with respect to the opening 9, that is, so-called out-of-stock adjustment can be easily performed.

As shown in FIG. 2 again, the unit main body 1 is inserted into the installation frame 4 from the front opening of the installation frame 4. A refrigeration cycle device such as a heat exchanger, a blower, an electric component box, and the like are housed and arranged in the unit body 1, and the front opening 2 is opened, that is, the grill body 3 is detached. Become.

When the mounting of the unit body 1 is completed, the grill body 3 is mounted in the front opening 2.
As shown in FIG. 1, the grill body 3 includes a rectangular main frame 11, a suction grill 12 attached to an upper portion of the main frame as described later, and an outlet 13 provided at a lower portion thereof. Consists of

To be more specific, the main frame 11 is provided with a partition frame 14 in parallel with the lower side.
The inside is divided into upper and lower parts. An upper side from the partition frame 14 is a grill mounting opening 15 to which the suction grill 12 is mounted, and a lower side is a blowout louver 16.
The above-mentioned outlet 13 provided with.

As shown in FIGS. 1 and 3, on the inner peripheral surfaces of the upper and lower sides of the grill mounting opening 15, locking grooves 17a and 17b are formed in a concave shape in cross section along the longitudinal direction.
Is provided.

Further, on the upper portions of the left and right side frames of the main frame 11, receiving brackets 18 and fixing piece portions 19 are provided vertically. The receiving bracket 18 protrudes from the main frame 11 to the grill mounting opening 15 inside the main frame. Further , a guide portion 20 which is an inclined surface extending obliquely toward the engaging groove 17 a provided on the upper portion of the main frame 11 is provided. The upper edge of the guide portion 20 is close to the rear surface of the retaining groove 17a.

The fixing piece 19 also projects from the main frame 11 to the grill mounting opening 15. The fixing piece 19 is a plate formed in a rectangular shape, and
A mounting hole 21 is provided in a portion protruding inward.

The suction grille 12 has vertical bars 22, 22 extending in the vertical direction, parallel to the left and right end portions, a central bar 23 provided in parallel with the center between the vertical bars, and a right angle to each bar. And a plurality of long horizontal rails 24 and short horizontal rails 25 arranged at predetermined intervals in the vertical direction.

The vertical bar 22 and the center bar 23 are basically columns having a rectangular cross section. Only the center bar 23 has no processing on its upper and lower ends. In particular, the left and right vertical rails 22
Is provided with a protruding piece 26a which is a hooking protruding part.

The protruding piece 26a is provided in the width direction of the vertical rail 22. The thickness and the protruding length of the protruding piece 26a are determined by the width of the hook groove 17a provided on the upper portion of the main frame 11. The dimension is set slightly smaller than the depth dimension.

An inclined surface 27 is formed from the rear end of the projecting piece 26a to the rear end of the main frame. The inclination angle of the inclined surface 27 is adjusted to the inclination of the guide portion 20 of the receiving fitting 18 described above.

A projecting piece 26b, which is a hooking projection, is integrally provided at the lower end of the vertical rail 22. The protruding piece 26b is provided over the width direction of the vertical rail, and the thickness dimension and the protruding length dimension are slightly smaller than the width dimension and the depth dimension of the retaining groove 17b provided in the partition frame 14. Is set to a smaller dimension.

The long horizontal rails 24 and the short horizontal rails 25 are arranged alternately in the vertical direction. The left and right ends of the long horizontal rails 24 are fixed to the vertical rails 22. Is extended to a position short of the vertical rail 22 and has a gap.

As shown in FIGS. 1 and 2, the outlet 13 is provided with a vertical louver 16 capable of adjusting the direction in which the heat exchange air is blown into the room to be air-conditioned. This vertical louver 16 is provided with a rotating mechanism 2 as shown in FIG.
8 is driven to rotate.

That is, the servo motor 2 as a driving source
9 is provided near the outlet 13 of the main frame 11, and one end of the first arm 30 is fitted to the rotating shaft 29a.
At the other end of the first arm 30, a locking pin 30a is projected, and is rotatably engaged with a locking hole 31a provided at one end of the second arm 31.

Further, a connecting pin 31b is provided at the other end of the second arm 31. The connecting pin 31b is provided integrally with the vertical louver 16 to rotatably support the vertical louver 16. Support piece 32 having a rotating shaft 32a
The second arm 31 and the vertical louver 16 are connected to each other.

The first arm 30 has a locking pin 30a.
On both sides of the stopper receiving portion 3 in a direction orthogonal to the longitudinal direction.
0b and 30b are formed to protrude. The second arm 31
A fan-shaped stopper 31c concentric with the engagement hole 31a is provided.

As a result, when the vertical wind direction lever 16 is fully closed as shown in FIG. 7A, and when the vertical wind direction lever 16 is fully opened as shown in FIG. In either case, one side end of the stopper portion 31c abuts on one of the stopper receiving portions 30b.

When the grille body 3 thus configured is mounted on the front opening 2 of the unit body 1 installed at a predetermined position, the suction grille 12 is removed from the main frame 11.

That is, at the time of installation and carry-in, the projecting pieces 26a and 26b provided at the upper and lower ends of the vertical rail 22 are engaged with the engaging grooves 17a and 17b provided on the main frame 11 and the partition frame 14, respectively. Then, the suction grill 12 is once lifted, the lower protrusion 26b is pulled out from the hook groove 17b, and the lower end of the grill is pulled forward to shift the position with respect to the partition frame 14. Next, the suction grille 12 is moved obliquely downward, and the upper protruding piece 26a is pulled out from the locking groove 17a.

The procedure for removing the suction grill 12 is exactly the same as the procedure for removing the screen door from the rail, for example, and the suction grill can be removed from the main frame 11 very easily.

In this state, the fixing piece 19 is exposed together with the receiving fitting 18. Therefore, the main frame 11 is brought into contact with the front opening 2 of the unit body 1, and the fixing screw 33 is inserted into the mounting hole 21 of the fixing piece 19, and the unit body 1
And fix it.

Next, the air filter 3 shown only in FIG.
After inserting the suction grill 4 into a predetermined position, the suction grill 12 is fitted into the grill mounting opening 15 of the main frame 11. Next time,
The operation is exactly the reverse of the procedure for removing the suction grill 12.

That is, the suction grille 12 is lifted in a state of being inclined as a whole, with the upper end part on the rear side and the lower end part on the front side. The protruding piece 26a provided at the upper end of the vertical rail 22 is engaged with the retaining groove 17a on the upper part of the main frame 11. At this time, as shown in FIG. Touch 20 and slide as it is.

Therefore, the unit main body 1 is connected to the air-conditioned room R
In a high place, the projecting piece 26a is engaged with the latching groove 17a formed on the upper side. The projection 26a can be engaged with the retaining groove very easily without concentration.

When the upper protruding piece 26a engages with the hook groove 17a, the suction grill 12 is lifted as much as possible, and is set in a vertical position so that the lower protruding piece 26b faces the hook groove 17b. Down.

After all, the suction grill 12 is fitted into the grill mounting opening 15. Since the inclined surface 27 is provided at the upper end of the vertical rail 22, the upper end does not come into contact with the guide portion 20 of the receiving bracket 18. That is,
The inclined surface 27 serves as a flank for the guide portion 20.

When the installation of the suction grille 12 is completed, an air-conditioning operation can be performed. In this state, a long horizontal rail 24 and a short horizontal rail 25 are incorporated in every other horizontal rail constituting the suction grille 12, so that all the horizontal rails like the horizontal rails of the conventional suction grille are compared. As a result, the intake air volume increases, and noise reduction can be obtained.

Rotating mechanism 28 for vertical louver 16
Are stopper receiving portions 30b, 30b and stopper portion 31c.
Since the first and second arms 30 and 31 having
There is no need to separately provide a stopper mechanism.
The reference numerals 0 and 31 hold the stopper function to improve the positioning accuracy and reduce the number of parts.

In order to prevent clogging of the air filter 34 due to use throughout the year, it is necessary to periodically remove dust adhering. To perform this operation, first remove the suction grill 12 and then remove the air filter 34.
Will be removed.

As described above, the suction grille 12 is removed by temporarily lifting it, pulling out the lower protruding piece 26b from the locking groove 17b, and lowering it obliquely. The upper protruding piece 26a comes out of the locking groove 17a, and the suction grill 12 can be removed very easily.

Since the air filter 34 is exposed, the air filter 34 is extracted from the unit main body 1 to remove the attached dust. At the same time, since the suction grill 12 removed is at hand, dust adhering to the suction grill 12 may be removed. Then, before inserting the air filter 34, it is preferable to clean the inside of the unit main body 1 which is almost exposed.

In other words, the suction grill 12 can be easily removed, and the air filter 34, the suction grill 12 and the inside of the unit body 1 can be easily cleaned.

When all operations are completed, the air filter 34 is inserted again, and the suction grill 12 is attached. This operation is performed in exactly the same procedure as when the suction grill 12 is removed, as described above.

As described above, the upper projecting piece 26
"a" is guided by the guide portion 20 of the receiving bracket 18, and can be easily engaged with the engaging groove 17a. Therefore, the work at this time can be performed in a short time without any trouble.

In the above embodiment, the metal fitting 18
Although the fixing piece 19 and the fixing piece 19 are separately provided, a mounting hole may be provided in the receiving fitting 18 so as to have the function as the fixing piece, and thus the number of parts can be reduced. .

[0064]

As described above, according to the present invention, the
Since the grill body is composed of a main frame having an opening for attaching the rill and a suction grill which is detachably fitted into this opening, the work of attaching the suction grill to the unit body becomes easy, and the suction of the user Cleaning work for the grill and inside the unit body can be done easily.
This has the effect of improving workability.

Further, the upper and lower sides of the grill mounting opening
The inner peripheral surface is provided with a locking groove formed in a concave cross section, and the upper and lower ends of the suction grill are provided with engaging projections so that the engaging grill is removably engaged with the engaging groove. This has the effect of being extremely easy to perform.

Further , it extends diagonally toward the upper side retaining groove.
A receiving metal fitting having a guide portion which is an inclined surface provided is provided, and an inclined surface is formed at a base end portion of the upper side engaging projection of the suction grill, so that the engaging projection is locked particularly when the suction grill is attached. This has the effect of making it easier to engage with the groove.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a grill body, showing one embodiment of the present invention.

FIG. 2 is an exploded perspective view of the indoor unit of the embodiment.

FIG. 3A is a schematic longitudinal sectional view of a main frame and a suction grille of the embodiment. (B) is a diagram illustrating the function of the guide fitting. (C) is a schematic longitudinal sectional view of a state where the suction grille is incorporated in the main frame.

FIG. 4A is a diagram of a rotating mechanism that drives a vertical louver in the embodiment. (B) is a figure of a state different from the figure (A).

FIG. 5 is a perspective view of an installation frame according to the embodiment.

FIG. 6 is a diagram illustrating attachment of a main part of the installation frame according to the embodiment.

FIG. 7 is a view for explaining attachment of the installation frame to the wall surface of the room to be air-conditioned in the embodiment.

FIG. 8 is a perspective view of a conventional grill body.

[Explanation of symbols]

2 front opening, 1 air conditioner body (unit body), 3 grill body, 13 outlet, 15 grill opening, 11 main frame, 12 suction grill, 17
a, 17b: locking groove, 26a, 26b: engaging projection (projection piece), 20: guide portion, 18: receiving bracket, 27: inclined surface.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 1/00 401

Claims (1)

(57) [Claims] 1. An air conditioner comprising: an air conditioner main body having an opening at a front surface; and a grille body fixed to an opening at the front side of the air conditioner main body, A main frame fixed to a front opening of the air conditioner main body, the main frame being provided with an opening for grill attachment and being freely attached to and detached from the opening for grill attachment of the main frame. And a suction grille fitted into the grille , wherein the main frame has upper and lower inner peripheral portions of the grill mounting opening.
The surface of the suction grill is provided with a locking groove formed in a concave cross section on the surface, and the suction grill includes a locking projection at upper and lower ends thereof.
The engaging protrusion is provided in the engaging groove of the grill mounting opening.
Kakeda' freely hooked to, in the main frame, is extended obliquely toward the upper side interlocking grooves
A receiving bracket having a guide portion that is an inclined surface is attached, and the base end of the upper side engaging projection of the suction grille is
An air conditioner, wherein an inclined surface is formed along an inclination of a guide portion of a receiving fitting .