JPH0742967A - Air conditioner - Google Patents

Abstract

PURPOSE:To improve an external appearance of a bottom of an indoor unit and to simplify mounting and removing of a lower frame by forming the frame detachably arranged in the bottom of the unit in a U shape, and arranging connectors at a plurality of places in the unit. CONSTITUTION:An indoor unit 1 of a wall hang type air conditioner has a rear plate 2 fixed to a wall, and a box type indoor unit 3 in combination. A U-shaped lower frame 4 is integrally formed from an entire width of a bottom 3a to a side 3b of the unit 3. The unit 3 and rotary connectors 6 to be engaged with engaging grooves formed on the plate 2 are arranged at four side positions of a bottom 4a of the frame 4. Further, protruding pawls 7 formed at the sides 4b of the frame 4 are inserted into receiving grooves 8 formed on sides 3b of the unit 3. Thus, an external appearance of the bottom of the unit 3 is improved, and the frame 4 can be simply and effectively mounted and removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner which is an indoor unit of a wall-mounted separation type air conditioner.

[0002]

2. Description of the Related Art In general, an indoor unit of a wall-mounted type separation type air conditioner is composed of an indoor unit body and a back plate, and a hooking member protruding from the back plate fixed to a wall surface of the indoor unit body It has a mounting structure that suspends the upper part. This indoor unit has a structure in which the bottom (lower frame) is detachable by a predetermined width so that the inside can be seen during piping work during installation and maintenance work after construction.

[0003]

However, the conventional removable bottom plate is formed only in the middle portion of the bottom surface of the indoor unit body, and therefore the connecting strips or steps of the bottom plate are formed. It will appear directly below. That is,
The wall-mounted indoor unit is installed on the wall surface near the ceiling so that people in the room look up from below. For this reason, the attachment / detachment connecting streak disposed at the bottom of the indoor unit is exposed, resulting in a poorly formed unit. Further, since the bottom surface or both side surfaces are preliminarily engraved with a kerf line such as a drain port for cutting off the plate as required, the appearance is unsightly also from this point.

In view of the above situation, the present invention provides an air conditioner which is an indoor unit in which the lower frame has a U-shape extending from the bottom surface to both side surfaces so as to prevent unnecessary groove streaks on the bottom surface of the unit. It is intended to be provided.

[0005]

SUMMARY OF THE INVENTION The present invention is an air conditioner comprising an indoor unit body and a back plate, wherein a detachable lower frame disposed on the bottom surface of the housing type indoor unit body has an entire bottom width. From the above, a lower frame having a U-shape which is raised by a predetermined length on both side surfaces is integrally formed, and rotary locking tools for engaging the locking grooves of the indoor unit body are provided at a plurality of positions on the lower frame. It is a thing.

[0006]

As described above, the wall-mounted air conditioner has a structure in which the indoor unit main body and the back plate are combined, and the lower frame disposed on the lower surface of the indoor unit main body extends from the entire bottom width to both side surfaces. By adopting the character-shaped lower frame, even if the indoor unit is looked up from below, unnecessary groove streaks and the like do not appear, and the frame structure has a good appearance. In addition, when removing the lower frame for inspection of piping or the like, raising the rotary locks arranged at a plurality of locations on the lower frame will cause the tip of the rotary lock and the locking groove of the indoor unit to move. The claw engagement of is disengaged, and the entire unitary U-shaped lower frame is removed. In addition, the bottom cover may be mounted in the reverse order of the above. It should be noted that a derivation mark (cutting line) for the drain or the like may be attached to the inside of the U-shaped lower frame, and cut off according to this mark.

[0007]

The present invention will be described below with reference to the drawings of the embodiments.

FIG. 1 shows an embodiment of a wall-mounted air conditioner in which an indoor unit main body and a back plate are combined. Reference numeral 1 is a wall-mounted air conditioner in which a back plate 2 fixed to a wall surface serving as a metal plate and a housing-type indoor unit main body 3 are combined. This is an indoor unit serving as a type air conditioner, and a U-shaped lower frame 4 is integrally formed on the frame bottom portion of the indoor unit body 3 from the entire width of the bottom surface portion 3a to both side surface portions 3b. At the four positions on the left, right, front and back of the bottom surface 4a of the U-shaped lower frame 4, the photographing type rotation member is engaged with the engaging groove 5 provided on the indoor unit main body 3 and the back plate 2 facing outward, respectively. A lateral notch formed by arranging the stopper 6 and projecting at the upper edge of the side surface portion 4b which is a rising surface on both sides of the U-shaped lower frame 4 at the lower edge of the indoor unit main body side frame 3b. Receiving groove 8
The U-shaped lower frame 4 can be attached to and detached from the bottom position of the indoor unit body 3 to form the air conditioner 10 as a whole. In this case, the configuration of the photographing type rotation locking tool 6 is such that the supporting unit 9 is arranged in the middle portion and the photographing unit 6a which can stand upright from the lower frame surface 4a at the base end is provided at the distal end portion of the indoor unit body 3. Alternatively, the engaging groove 5 formed on the edge of the back plate 2
It is a rotary locking tool having an L-shaped hook structure in which a hook portion 6b engaging with a claw is arranged.

Explaining this action, first, when the wall-mounted indoor unit 1 is installed on the wall surface, the back plate 2 is previously fixed to a predetermined position on the wall surface (not shown) with a peg or the like. After this, the hanging projections 11 on the upper edge of the back plate 2
On the rear upper edge of the indoor unit body 3
Is hung to form the indoor unit 1.

In this installation work, for example, predetermined work such as connecting a refrigerant pipe (not shown) introduced into the back plate 2 led from the outdoor unit side and a refrigerant pipe (not shown) of the indoor unit body 3 In order to perform the above, a working gap A is formed below the indoor unit 1. In this case, the take-up type rotation locking tools 6 arranged on the four sides of the U-shaped lower frame 4 which can be detachably attached to the lower part of the indoor unit 1 are respectively recessed step parts 13 formed on the lower frame surface 4a, for example. As shown in FIG. 5, by inserting a thumb or the like into the photographing section 6a which is normally embedded (flush), the photographing type rotation locking tool 6 uses the intermediate support shaft 9 as a fulcrum. When it is rotated, the hook portion 6b at the tip comes out of the receiving groove 12 serving as a fixed frame, and the claw engagement is released. After that, if the U-shaped lower frame 4 is pulled downward, it can be removed from between the indoor unit body 3 and the back plate 2. That is, the lower bottom surface and the side surface of the frame can be separated at a time without removing the decorative grille 14 on the front surface of the indoor unit 1. Next, with the U-shaped lower frame 4 removed, pipe connection work is performed, and all construction work such as drain hose connection and electrical work connection is completed, and a trial run is performed. In addition, the same applies during maintenance.

Since the lower frame 4 has a U shape as a whole, when it is removed, it can be placed on the upper surface of the indoor unit body 3 without placing it on the floor or the like. Therefore (not shown), there is no risk of misplacement or trampling.

After this, when the U-shaped lower frame 4 is returned and fixed to the frame bottom portion, the four take-up type rotation locking tools 6 arranged on the U-shaped lower frame 4 are reversely arranged. , Shooting section 6a
And the hook portion 6b at the tip is retracted from the frame edge so as not to interfere with the fitting (see FIG. 6).
Here, the U-shaped lower frame 4 is inserted downward between the back plate 2 and the indoor unit body 3. At this time, first, the protruding claws 7 on the upper edges of the side portions 4b rising on both sides are set while being inserted into the receiving grooves 8 formed in the side cutouts of the side surface frame 3b of the indoor unit body. Next, each photographing type rotation locking tool 6 of the lower frame 4
When the photographing portion 6a is pushed back, the hook portion 6b at the tip end is engaged with the indoor unit body 3 and the engaging groove 5 at the edge of the back plate 2 and fixed.

Further, on the inner surface 4a 'of the U-shaped lower frame 4, there is provided a marking scoring 15 for making a drain hole for a drain hose, wiring or the like. In other words, the U-shaped lower frame 4 does not have any scoring grooves or the like as in the conventional case, and has a good lower frame structure.

[0014]

As described above, in the air conditioner of the present invention, the lower frame disposed on the bottom surface of the indoor unit body has a U-shaped integral structure extending over both side surfaces, and the lower frame has a plurality of bottom surface portions. By providing a rotary locking tool that engages with the locking groove of the indoor unit body on the inside, the appearance of the indoor unit viewed from the bottom shows that connecting strips (lines) are used as with the conventional small frame. Etc. do not appear, and it is a lower frame that is good in terms of design. Of course, when not in use, the photographing type rotation locking device takes a setting position so as to be flat with the frame surface so as not to project. In addition, since there are no drawer cutting lines, such as drain hoses, which have been engraved in advance in the related art, there is an effect that a clean lower frame can be obtained from this point as well.

[Brief description of drawings]

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

FIG. 2 is a perspective view of the lower frame.

FIG. 3 is an explanatory view of the claw engagement of the photographing type rotation locking tool of the lower frame.

FIG. 4 is an explanatory diagram of the claw engagement on the rising side surface portion of the lower frame.

FIG. 5 is an explanatory view of how to remove the rotation locking tool.

FIG. 6 is an explanatory diagram of a main part inside a lower frame.

[Explanation of symbols]

 2 Back plate 3 Enclosure type indoor unit body 4 U-shaped lower frame 4a Bottom part 4b Standing side part 5 Locking groove 6 Rotating locking tool 7 Projection claw 8 Receiving groove

Claims (1)

[Claims] 1. An air conditioner comprising an indoor unit main body and a back plate, wherein a removable lower frame disposed on the bottom surface of the housing type indoor unit main body has a predetermined length from the entire bottom width to both side surfaces. The air conditioner is characterized in that a lower frame having a U-shape that is made up of and integrated with each other is provided, and pivot locking members that engage with the locking grooves of the indoor unit main body are provided at a plurality of positions of the lower frame. .