JP3071081B2 - 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 a separation type air conditioner, and more particularly to an air conditioner in which an indoor unit main body is mounted on a back plate in a wall-mounted manner.

[0002]

2. Description of the Related Art In general, a wall-mounted air conditioner (also referred to as an "indoor unit" in the present specification) is composed of an indoor unit main body and a back plate fixed to a wall. The indoor unit main body is mounted on a wall by suspending the upper part of the indoor unit main body from a hook protruding from the plate.

[0003] When installing this type of indoor unit, the indoor unit main body is installed on the back plate,
Since it is necessary to perform piping work such as refrigerant piping and drain piping, and also to be able to see inside the indoor unit main body during maintenance work, it is possible to remove and attach a part of the bottom part on the back side of the indoor unit main body Are known.

[0004]

However, the conventional detachable bottom surface is locked only to the indoor unit main body, and the bottom surface is fixed on only one side, so that it cannot be securely mounted. There is a problem that the bottom is easily sagged or distorted, and the appearance is deteriorated.

On the other hand, in order to secure workability such as maintenance, easy detachment is required.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an air conditioner in which the lower frame can be securely and easily attached and detached.

[0007]

To SUMMARY OF THE INVENTION To achieve the above object, an air conditioner of the present invention, the indoor unit body, in the air conditioner be installed on the back plate fixed to the wall, the
Removable lower frame on the bottom of the indoor unit body
The lower frame is engaged with the indoor unit main body.
And a locking tool that engages with the engaging portion of the back plate.
The anchor is a base which is screwed to the lower frame.
And a locking claw rotatably provided on the base and the locking claw.
A cover for covering the nail, and furthermore, both ends of the lower frame.
The part has an engagement protrusion that engages with both side surfaces of the indoor unit main body.
Characterized in that it comprises a.

[0008]

[0009]

[0010]

When the lower frame is mounted, the latch provided on the lower frame is engaged with the indoor unit body and the back plate. Therefore, the lower frame is connected to both the indoor unit body side and the back plate side. And can be fixed reliably and easily.

[0011] Further, since the locking tool is formed by the base, the locking claw, and the cover, the locking tool can have a simple configuration and can be easily attached to the lower frame. Further, the lower frame can be more securely fixed by the configuration in which the engagement protrusion that engages with the indoor unit is provided at the end of the frame.

Further, by providing an engaging piece made of a synthetic resin as the engaging portion of the back plate, the engagement of the engaging tool with the engaging claw can be made smooth and reliable.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, a wall-mounted air conditioner 3 according to an embodiment of the present invention is a general home-use air conditioner capable of cooling and heating, and is connected to an outdoor unit. The unit is attached to a wall in a room.

As shown in FIGS. 1 and 2, the air conditioner 3 includes a back plate 2 fixed to a wall, and an indoor unit main body 6 installed on the back plate 2, and a refrigerant heat for introducing a refrigerant. An exchanger 5, a hot water heat exchanger (not shown) into which hot water is introduced, and a blower (not shown) are housed in the case 4.

The case 4 is composed of a frame 10 and a grill 11, and a suction port 1 is provided in front of the grill 11.
3, and an outlet 15 is formed below the grill 11.

In the indoor unit main body 6, the bottom portion of the frame 10 has a bottom surface 6a extending from the entire width thereof to both side surfaces 6b.
A lower frame 17 having a substantially U-shape is attached so as to be detachable.

As shown in FIGS. 3 to 6, the lower frame 17 has an engaging portion 19 of the indoor unit body 6 and a back plate 2 as shown in FIGS.
Locking members 23 that engage with the engaging portions 21 are provided at two places on the lower surface.

The locking member 23 includes a base 25 and the base 25.
And a pair of locking claws 27a and 27b rotatably provided on the lower frame 17 and covers 29 and 29 for covering the locking claws 27a and 27b. Can be easily attached by screws 24.

Each of the locking claws 27a, 27b is configured to be locked to the engaging portion 19 of the unit body 6 or the engaging portion 21 of the back plate 2 by the rotation of the L-shaped knobs 31a, 31b, respectively. ing. Also, as shown in FIG.
A concave portion 32 is formed on one side of each of the a and 31b, and is formed on the lower frame 17 and fitted to the convex portion 34 at a locking position of the locking claws 27a and 27b.
It can be stopped at the locking position.

As shown in FIGS. 4 and 10, a pair of engaging projections 33 are provided at both ends 17a and 17b of the lower frame 17, and are formed on the lower edges of the side frames 6b of the unit body. The lower frame 17 into the indoor unit main body 6 by inserting the lower frame 17 into the notched receiving groove 35,
The lower frame 17 is securely mounted. By locking the two end portions 17a and 17b of the lower frame 17 in this way, it is possible to prevent the lower frame 17 from coming off due to vibrations or the like. Further, a convex piece 36 is formed on the engaging projection 33, and the concave portion 3 formed on the side frame 6b is formed.
8 to prevent the lower frame 17 from coming off.

The lower edge of both side frames 6b of the indoor unit main body 6 is provided with a concave 37
Are formed, and the recess 37 serves as a mark for both frame edges. A coin or the like is inserted into the recess 37 and turned to push down the edge of the lower frame 17 to release the engagement with the side frames 6b.

As shown in FIG. 4, a pair of front claws 41 are formed between a pair of locking members 23 at one longitudinal side edge of the lower frame 17, and as shown in FIG. It is designed to be engaged with a recess 49 formed in the indoor unit main body 6. By forming such a front claw 41, distortion or bending between the pair of locking members 23 can be reliably prevented. In particular, even when the pipes and the like are stored relatively easily and the lower frame 17 is pressed by these pipes and the like, distortion and bending are less likely to occur.

The back plate 2 is fixed to a wall in advance, and the upper portion of the indoor unit body 6 is hooked on the back plate 2 so that the indoor unit body 6 is hung on the wall. At the bottom of this back plate 2,
The engaging portion 2 on which the locking claw 27a of the above-described locking tool 23 is hooked.
1 is provided.

The engaging portion 21 is formed separately from the back plate 2 and is formed in a substantially L-shaped cross section from a synthetic resin material as shown in FIGS. A locking hole 43 with which the claw is engaged is formed. As described above, by forming the engaging portion 21 from a synthetic resin material, a smooth engagement can be obtained, and since it is hard, a reliable engagement can be achieved. That is, when the sheet metal is directly engaged with the sheet metal of the back plate 2, the sheet metal may be deformed. However, by providing such a separate synthetic resin, there is no possibility that the sheet metal of the back plate 2 is deformed, and the locking is performed. Reliable engagement with the pawl 27a can be obtained.

The upper portion of the engaging portion 21 has a wedge-shaped vertical cross section, and the upper portion of the back plate 2 is pushed into the mounting piece 45 cut out of the sheet metal back plate 2 by a predetermined amount from below. It is locked to.

Next, the operation of the present embodiment will be described.

When installing the air conditioner 3, the back plate 2 is attached to a wall. As shown in FIG. 7, a wedge-shaped engaging member 21 is inserted into the cut-and-raised piece 45 of the back plate 2 and fixed to the back plate 2 from below. Next, the indoor unit body 6
Is hooked on the top of the back plate to make it wall-mounted.

While the indoor unit main body 6 is in a state of being hung on a wall,
Piping work and the like are performed with the lower frame 17 removed, and finally the lower frame 17 is attached, and the indoor unit body 6 is removed.
Cover the pipes on the back side of the so that it cannot be seen from outside.

When the lower frame 17 is attached, FIG.
As shown in the figure, raise the knobs 31a and 31b, and
The engagement projections 33 at both ends are engaged while
Into the grooves 35 of the side frames 6b to lock the lower frame 17 to the indoor unit body 6.

Subsequently, as shown in FIG.
By rotating a and 31b, the concave portion 32 is fitted to the convex portion 34 and stopped. Thereby, one locking claw 27 is locked by the hole 43 formed in the engaging portion 21 of the back plate, and the other locking claw 27 is engaged by the engaging portion 19 of the indoor unit main body 6. Therefore, the lower frame 17 is securely fixed to the back plate 2 and the indoor unit main body 6.

On the other hand, when removing the lower frame 17 for maintenance or the like, the knobs 31a and 31b are turned by fingers to stand up, and the locking claw 27a and the engaging portion 19 on the main body side, the locking claw 2
7b is disengaged from the engaging portion 21 on the back plate side. Next, FIG.
As shown in FIG. 0 (b), the coin 47 is inserted into the cutout between the lower frame 17 in which the recess 37 is formed and the side frames 6b, and the coin 47 is turned as it is.
3 and the receiving groove 35 engaged with this 3 are elastically deformed,
Since the engagement is released, as shown in FIG.
At the same time, the indoor unit 6 is slightly lifted from the back plate 2 to disengage the front claws 41, 41 from the recess 49 of the indoor unit main body 6, and the lower frame 17 is removed as shown in FIG.

As described above, according to the present embodiment, the lower frame 17 can be easily attached and detached.
At the time of attachment, the locking member 23, the engagement protrusion 33, the front claw 4
1 can be securely fixed to the indoor unit main body 6.

The present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention.

For example, in the above embodiment, the locking claw 27
knobs 31a, 31b for engagement and disengagement of a, 27b
Was performed for each knob, but each knob 31a,
31b may be linked by a link or the like and linked.

The same effect can be obtained even if the locking members 23 are provided not only at two places but also at one place or three places.

[0037]

According to the air conditioner of the present invention, the latch provided on the lower frame is engaged with the indoor unit main body and the back plate. And can be securely and easily fixed.

Further, since the locking tool is formed by the base, the locking claw, and the cover, the locking tool can have a simple configuration and can be easily attached to the lower frame. Further, the lower frame can be more securely fixed by the configuration in which the engagement protrusion that engages with the indoor unit is provided at the end of the frame.

[0039]

[Brief description of the drawings]

FIG. 1 is a perspective view of an indoor unit according to an embodiment of the present invention as viewed from below.

FIG. 2 is a perspective view showing a state where a grill of the indoor unit shown in FIG. 1 is removed.

FIG. 3 is a sectional view showing a main part according to an embodiment of the present invention.

FIG. 4 is a perspective view of a lower frame of the indoor unit shown in FIG.

FIG. 5 is a plan view of the lower frame shown in FIG. 4;

6 is a cross-sectional view of the locking tool taken along a line VI-VI in FIG.

FIG. 7 is a plan view of a back plate.

FIG. 8 is a sectional view of an engagement portion fixed to the back plate.

FIG. 9 is a perspective view of the indoor unit shown in FIG. 1 as viewed from the back side.

FIG. 10 is a cross-sectional view showing a disengaged state between one end of the lower frame and both side frames of the indoor unit main body.

[Explanation of symbols]

 Reference Signs List 2 back plate 3 air conditioner 17 lower frame 19 engagement unit of indoor unit main body 21 engagement unit of back plate 23 locking tool 27a, 27b locking claw 29 cover 33 engagement projection

──────────────────────────────────────────────────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 in which an indoor unit main body is mounted on a back plate fixed to a wall, wherein the lower frame is detachably attached to a bottom surface of the indoor unit main body.
A lower frame of the indoor unit main body.
An engagement portion and a locking tool that engages with the engagement portion of the back plate,
This locking device is a base that is screwed to the lower frame.
Part, a locking claw rotatably provided on the base,
A cover for covering the pawl, and
The end is engaged with both sides of the indoor unit main body.
An air conditioner comprising: a projection .