JP2002349892A - Ceiling-buried indoor unit for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily, safely, and temporarily fix an indoor-side panel in a ceiling- buried indoor unit by controlling the vertical and horizontal movements of temporary fixing fittings drawn out at the time of fixing the panel. SOLUTION: In order to temporarily fix a decorated panel 4 to the body 1 of the indoor unit, the temporary fixing fittings 12 which are bent in U-shape and have spring forces are held so that the fittings 12 may be drown out into the gap between a bellmouth 11 and a drain pan 9 and, when the fittings 12 are drawn out, the vertical and lateral movements of the fittings 12 are controlled so that the fittings 12 may not move freely. Consequently, the temporary fixing work of the decorated panel 4 which is performed by a person while the person looks upward by using a stepladder, etc., becomes exceedingly safe and easy. Therefore, the workability of the installing work of the decorated panel 4 is improved, because the on-site temporary fixing work and fixing work of the panel 4 can be simplified and the time required for performing the works can be shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor unit for an air conditioner, and more particularly to a temporary fixing structure for temporarily installing a decorative panel when the decorative panel is mounted on a lower surface of a ceiling-mounted indoor unit main body. About.

[0002]

2. Description of the Related Art In general, an indoor unit for an air conditioner of a buried ceiling type has a heat exchanger for heating or cooling the indoor air and a suction unit for sucking the indoor air and sending the air to the heat exchanger. A fan, a fan motor that drives the fan, a bell mouth that guides room air to the fan, a drain pan that receives drain water of the heat exchanger, and the like are housed.
A decorative panel having a suction grill and an outlet is fixed.

[0003] When installing this kind of indoor unit on the ceiling,
After fixing the main body in the ceiling, the decorative panel is temporarily fixed to the main body, and then temporarily screwed to the main body for safety. And fix it.

[0004] An example of a ceiling-embedded air conditioner having an indoor unit main body of an air conditioner and a decorative panel fixed to the lower surface of the main body is disclosed in Japanese Patent Application Laid-Open No. 9-210403. In this air conditioner, a fixture for holding the drain pan has a slit, and a temporary fixing tool elastically mounted in the slit is pulled downward to temporarily fix the decorative panel.

[0005]

However, the technique disclosed in Japanese Patent Application Laid-Open No. 9-210403 is as follows.
There was a lack of safety considerations for installing the decorative panel. In the slit formed in the drain pan holding fixture,
By making the temporary fixing tool storable and slidable downward, it has a structure that is not exposed from the main body, but when it is pulled downward, it moves freely in a horizontal direction parallel to the ceiling surface. there were.

[0006] In general, the installation of the decorative panel is done by climbing on a stepladder or the like and working on the back. Therefore, even if an attempt is made to hook the decorative panel, temporary installation of the decorative panel is difficult to perform when the lightweight temporary fasteners are loose, which is extremely dangerous. Work had been done.

[0007] In particular, when the indoor unit is installed in a place where it is relatively difficult to work on a high ceiling, or when a plurality of indoor units are connected to one outdoor unit, the decorative panel is temporarily fixed. And the installation was very difficult and time consuming.

SUMMARY OF THE INVENTION An object of the present invention is to provide a ceiling-embedded indoor unit, in which a drawn-out temporary fixing tool does not move vertically and horizontally when a panel (generally a decorative panel) is mounted at a work site. Therefore, it is an object of the present invention to provide a temporary fixing device installation structure that can easily temporarily fix a panel to the temporary fixing device and has improved workability.

[0009]

In order to solve the above-mentioned problems, the present invention provides a fan and a heat exchanger, a drain pan for receiving drain water of the heat exchanger, and a bell as an air flow path to the fan. A ceiling-embedded indoor unit for an air conditioner having a mouse in the indoor unit main body and mounting a panel having an air suction port on the indoor surface side of the indoor unit main body, wherein the drain pan and the bell mouth are provided. A temporary fixing tool for temporarily fixing the panel is housed so as to be able to be pulled out in a gap formed on the indoor surface side formed between the temporary fixing tool and the horizontal and vertical movement of the temporary fixing tool. Characterized by having a regulation means for regulating

According to the present invention, the pulled out temporary fastener is:
The vertical and horizontal movement is restricted and does not wobble, so relatively heavy panels (generally decorative panels for finishing) can be hooked more easily than lightweight temporary fasteners, which is safe and efficient. Work becomes possible.

Further, the temporary fixing device is stored in advance in the gap, and the panel can be temporarily fixed by pulling out the temporary fixing device from the gap when the panel is mounted on the indoor unit main body. . Further, the temporary fixing device accommodated in the gap between the drain pan and the bell mouth can be restricted from moving in the horizontal direction by the drain pan and the bell mouth.

Further, the temporary fixing device has an elastic force capable of deforming in a direction along the gap, and the temporary fixing device is locked in the gap by deformation of the temporary fixing device in a direction along the gap. An engaging portion may be provided. Specifically, the temporary fastener has an elastic force in which a wire is bent substantially in a U-shape, and has a deformable elastic force in a width direction of the U-shape. The U-shaped bottom was provided with an engaging portion for temporarily fixing the panel.

[0013] With the above configuration, the temporary fixing device is stored in the gap between the bell mouth and the drain pan and shipped, and the temporary fixing device can be pulled out from the gap and used during the on-site mounting operation. For example, by providing the temporary fixing tool with an elastic force as a spring, the drawn temporary fixing tool can be locked to a movement restricting means such as a protrusion or a hole, so that it can be prevented from freely moving in the vertical and horizontal directions. Therefore, the temporary fixing of the decorative panel becomes very safe and easy, and the time for temporarily fixing and installing the decorative panel on the site can be simplified and speeded up, so that the installation workability can be improved.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. First, an outline of the present invention will be described with reference to FIG. FIG. 1 is an installation diagram of an indoor unit for an air conditioner of a ceiling embedded type with four-way blowing.

The body 1 is composed of a main body 1 and a decorative panel 4, and the main body 1 is fixedly installed on the back of the ceiling by using a hanging metal fitting 2 and a hanging bolt 3, and the decorative panel 4 is substantially flush with the ceiling surface. Is attached below the main body 1. The present invention
The present invention relates to a temporary fixing device when the decorative panel 4 is attached.

After the decorative panel 4 is temporarily fixed (temporarily suspended) to the main body 1 side, it is fixed using screws (not shown) or the like. Further, a suction grill (suction port) 5 is attached substantially at the center of the decorative panel 4, and has outlets 6a, 6b, 6c and 6d around the suction grill 5.

After the room air is sucked into the suction grille 5 by the operation of the fan housed in the main body 1, the room air passes through the heat exchangers housed in the main body 1 and the air outlets 6a, 6b. , 6c and 6d are discharged indoors.

FIG. 2 is an exploded perspective view of the main body 1. Body 1
Is an octagonal cylindrical shape composed of four short surfaces and four long surfaces, and is an integrally molded product in which a metal plate is inserted into styrene foam for heat insulation, dew condensation prevention, soundproofing, and the like. Further, the hanging fittings 2 are attached to four short surfaces of the main body 1, and a heat exchanger 7, a fan 8, and the like are housed in the main body 1.

The drain pan 9 is a styrofoam molded product for receiving and collecting drain water dropped from the heat exchanger 7. The drain pan 9 has a recess 9 for accommodating a temporary fixing tool 12 bent in a substantially U shape for temporarily fixing the decorative panel 4.
a and 9b are provided.

The drain pan 9 is attached to the main body 1 by screws 1
Fixtures 10a, 10b, 10c for fixing at 3
10d is inserted into the styrene foam drain pan 9.

The bell mouth 11 is a resin molded product that smoothly guides suction air to the fan 8 to reduce blowing noise and improve blowing performance. The bell mouth 11 is provided with fitting portions 11a and 11b that hold and fit the temporary fastener 12 having a spring force bent in a substantially U shape. The bell mouth 11 is fixed with screws 14 to fixtures 10a, 10b, 10c, and 10d inserted in a styrene foam drain pan 9.

According to the present embodiment, a temporary fixing tool 12 which is bent substantially in a U-shape for temporarily fixing the decorative panel 4 to the main body 1.
Is housed in a gap formed between the fitting portions 11a and 11b provided in the bell mouth 11 and the concave portions 9a and 9b provided in the drain pan 9, and pulled out when the decorative panel is mounted.
It can be held elastically by the spring force.

As a result, it is possible to prevent the temporary fixing tool 12 from freely moving in the vertical and horizontal directions with respect to the ceiling surface, so that the temporary fixing of the decorative panel 4 becomes very easy, This simplifies and speeds up the installation work time and improves the installation workability.

FIG. 3 shows a specific example of the temporary fastener 12. 3 (a) to 3 (b) show a state in which the temporary fastener is stored (shipped from the factory), and FIGS. 3 (c) to 3 (d) show a state where the decorative panel is pulled out and temporarily fixed. . It should be noted that FIG.
(C) is a front view, and (b) and (d) are side views.

As shown in FIG. 3, the temporary fastener 12 is formed in a substantially U-shape, and has a bent lower end portion 18, a central convex portion 19,
The upper end has a horizontal L-shaped bent portion 20, and the other portions are straight portions.

The temporary fastener 12 is formed by, for example, bending a metal wire having elasticity, and has a spring force that repels pressing and expanding. Temporary fastener 12 is bellmouth 1
It is accommodated in a gap formed between the first pan 1 and the drain pan 9 and is elastically held and fitted.

At the time of shipment from the factory, the central concave portion 19 of the temporary fastener 12 is elastically held by the I-shaped protrusion 15 of the bell mouth 11, and all of the temporary fastener 12 except for the lower bent portion 18 are bent. And the drain pan 9 is accommodated in a gap formed between the drain pan 9.

Therefore, since the temporary fastener 12 is not exposed from the main body 1 and does not become an obstacle, it is possible to reduce the size of the main body 1 and to save resources of the packing material accompanying the miniaturization of the packing, and also to pack and transport the main body 1. In this way, it is possible to prevent breakage of the temporary fastener 12 during unpacking and installation.

When the decorative panel is temporarily fixed, the temporary fixing tool 12 is pulled out downward, and the central concave portion 19 of the temporary fixing tool 12 and the upper horizontal L-shaped bent portion 2 are formed by the I-shaped projection 15 of the bell mouth 11.
0, and the engaging member 22 of the decorative panel 4 is hooked on the lower end bent portion 18 of the temporary fastener 12.

As shown in FIG. 3 (c), the pulled out temporary fixing tool 12 is linearly connected to the upper horizontal L-shaped bent portion 20 of the temporary fixing tool 12 on the I-shaped projection 15 of the bell mouth 11. The vertical and horizontal movements are restricted by the locking of the parts, and as shown in FIG.
The horizontal movement of one of them is also restricted by being sandwiched between the gap and the drain pan 9.

In this manner, the decorative panel 4 is provided with the temporary fastener 12.
The decorative panel 4 is temporarily fixed (temporarily suspended) to the main body 1 using screws (not shown).

According to the present embodiment, since the temporary fixing tool 12 does not move freely in the vertical and horizontal directions with respect to the ceiling surface, the temporary fixing of the decorative panel 4 becomes very easy. For this reason, it is possible to simplify and speed up the time required for the temporary fixing and installation of the decorative panel 4, thereby improving the installation workability. Further, unlike the conventional one, there is no separate fixing bracket or screw for holding the temporary fastener, so that the number of parts, the manufacturing cost, and the weight of the main body can be reduced.

FIG. 4 shows another specific example of the temporary fastener 12 in the present invention. 4 (a) to 4 (b) show a state in which the temporary fastener is stored (shipped from the factory), and FIGS. 4 (c) to 4 (d) show a state in which the decorative panel is pulled out and temporarily fixed. . In addition,
(A) and (c) of the figure are front views, and (b) and (d) are side views.

The temporary fastener 12 is formed in a substantially U-shape, having a lower end bent portion 18 and an upper end vertical L-shaped bent portion 21, and the other portions are straight portions. This temporary fastener 12
Is formed by bending a metal wire, for example, and has a spring force to oppose pressing and expanding.

At the time of shipment from the factory, as shown in FIGS. 4A and 4B, the temporary fixing tool 12 is connected to the linear portion of the temporary fixing tool 12 by the L-shaped projection 16 of the bell mouth 11, and Bellmouth 1
1 and the drain pan 9, a bent portion 21 having a vertical L-shape at the upper end
Are elastically held, and the portions other than the lower end bent portion 18 are accommodated in the gap.

As a result, since the temporary fastener 12 is not exposed from the main body 1 and does not become an obstacle, the packaging of the main body 1 can be reduced in size and the resources of the packaging material can be saved, and the packaging of the main body 1 can be reduced. The temporary stopper 12 can be prevented from being damaged during transportation, unpacking, and installation.

At the time of temporary fixing of the decorative panel, FIG.
As shown in (d), the temporary fixing tool 12 is pulled out downward, the linear portion of the temporary fixing tool 12 is locked to the L-shaped projection 16 of the bell mouth 11, and the horizontal movement is regulated. In the hole 17 of the mouse 11, a vertical L-shaped bent portion 2 of the upper end of the temporary fastener is provided.
The vertical movement is regulated by inserting 1 using elastic force. In this state, the lower end bent portion 1 of the temporary fastener 12 is
The engaging tool 22 of the decorative panel 4 is hung on 8.

As a result, the decorative panel 4 is temporarily fixed (temporarily suspended) to the main body 1 using the temporary fixing tool 12, and the decorative panel 4 is fixed to the main body 1 using screws (not shown). You. During the temporary fixing of the decorative panel 4, the temporary fixing tool 12 does not move freely in the vertical and horizontal directions with respect to the ceiling surface, so that the temporary fixing of the decorative panel 4 becomes very easy.

For this reason, it is possible to simplify and speed up the time required for temporarily fixing and installing the decorative panel 4 on site, and
Installation workability can be improved. Further, unlike the conventional one, a separate fixing bracket or screw for holding or fitting the temporary fastener 12 is not required, so that the number of parts, manufacturing cost, and body weight can be reduced.

The present invention is not limited to the above embodiment, and various modifications are possible. For example, in the above embodiment, the temporary fastener 12 is substantially U-shaped, but is not limited to this, and has another shape such as a C-shape, an L-shape, or a V-shape. You can also.

The I-shaped projection 15 and the L-shaped projection 16 provided on the bell mouth 11 shown in the drawing may have different shapes, and the hole 17 may be any of a round hole, a long hole and a square hole. it is obvious. The protrusions 15 and 16 and the holes 17 provided on the bell mouth 11 may be provided on the drain pan 9 side.

More specifically, the substantially U-shaped temporary fastener 12 is attached not to the main body 1 but to the decorative panel 4 side.
It may be elastically held and fitted in a gap formed between 1 and the drain pan 9. In the above-described embodiment, the indoor unit of the ceiling embedded type has been described. However, the present invention is not limited to this and can be applied to, for example, a ceiling hanging type, a wall hanging type, and the like.

According to the above embodiment, the temporary fastener is housed in the gap formed between the bell mouth housed in the main body and the drain pan, is held elastically, and is perpendicular to the ceiling surface. Since the decorative panel does not move freely in the horizontal direction, it is extremely easy to temporarily fix the decorative panel.

Therefore, the work time for temporarily attaching and installing the decorative panel on the site can be simplified and speeded up, and the installation workability can be improved. In addition, the temporary fixing tool is locked to the projection of the bell mouth or inserted into a hole to elastically hold the fixing tool, thereby eliminating the need for a separate fixing bracket and screw, thereby reducing the number of parts and manufacturing. Cost and body weight can be reduced.

Moreover, since the temporary fixing device is housed so as to be able to be pulled out in a gap formed between the bell mouth and the drain pan, the temporary fixing device is housed in the main body until the decorative panel is temporarily fixed. As a result, it is possible to save the resources of the packing material accompanying the downsizing and the downsizing of the packing, and also to prevent the temporary fastener from being damaged at the time of packing, transporting, unpacking and installing the main body.

[0046]

According to the present invention, in the ceiling-mounted indoor unit, when the decorative panel on the indoor side is attached, the temporary fixing tool drawn out from the gap between the drain pan and the bell mouth can move vertically and horizontally. Therefore, the decorative panel can be temporarily and easily temporarily fixed to the temporary fastener.

[Brief description of the drawings]

FIG. 1 is an installation diagram of a ceiling-embedded indoor unit of the present invention.

FIG. 2 is an exploded perspective view of the ceiling-embedded indoor unit of the present invention.

FIG. 3 is a front view and a side view showing a specific example of a temporary fastener according to the present invention.

FIG. 4 is a front view and a side view showing another specific example of the temporary fastener according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Main body 2 Hanging fitting 3 Hanging bolt 4 Decorative panel 5 Suction grill (suction port) 6a, 6b, 6c, 6d Outlet 7 Heat exchanger 8 Fan 9 Drain pan 9a, 9b Drain pan Temporary fastener storage / holding / fitting recess 10a , 10b, 10c, 10d Drain pan insert sheet metal 11 Bell mouth 11a, 11b Temporary fastener fitting part 12 Temporary fastener 13, 14 Fixing screw 15 I-shaped projection 16 L-shaped projection 17 Hole 18 Lower bent part 19 Center Convex part 20 Upper end horizontal L-shaped bent part 21 Upper end vertical L-shaped bent part 22 Engagement tool

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kazuhisa Yagi 390 Muramatsu, Shimizu-shi, Shizuoka Prefecture Inside Hitachi Air Conditioning Systems Shimizu Production Headquarters (72) Inventor Naoki Sugimoto 390 Muramatsu, Shimizu-shi Shizuoka Prefecture Hitachi Air Conditioning Systems Shimizu Corporation In the production headquarters (72) Inventor Shinichi Kosugi 390 Muramatsu, Shimizu-shi, Shizuoka Prefecture Hitachi Air Conditioning System Shimizu Production Headquarters F-term (reference) 3L051 BH08 BJ10

Claims (5)

[Claims] An indoor unit main body includes a fan and a heat exchanger, a drain pan for receiving drain water from the heat exchanger, and a bell mouth serving as an air flow path to the fan. A ceiling-embedded indoor unit for an air conditioner to which a panel having an air suction port is mounted on an indoor surface side, wherein a gap formed between the drain pan and the bell mouth is opened on the indoor surface side. A temporary fixing device for temporarily fixing the panel is retractably housed therein, and the gap portion has a restricting means for restricting horizontal and vertical movement of the temporary fixing device. Indoor unit. 2. The temporary fixing device is stored in advance in the gap, and when the panel is mounted on the indoor unit main body, the temporary fixing device is pulled out from the gap to engage the temporary fixing device. 2. The panel is temporarily fixed to a portion.
A ceiling-mounted indoor unit for an air conditioner according to item 1. 3. The temporary fixing device accommodated in the gap between the drain pan and the bell mouth is restricted from moving in the horizontal direction by the drain pan and the bell mouth. A ceiling-mounted indoor unit for air conditioners. 4. The temporary fastener has an elastic force capable of deforming in a direction along the gap, and the temporary fastener is locked in the gap by deformation in the direction along the gap. The ceiling embedded indoor unit for an air conditioner according to any one of claims 1 to 3, wherein a locking portion is provided. 5. The temporary fixing device according to claim 1, wherein the wire is bent in a substantially U-shape and has an elastic force capable of being deformed in a width direction of the U-shape. The ceiling-mounted indoor unit for an air conditioner according to any one of claims 1 to 4, wherein the U-shaped bottom has an engagement portion for temporarily fixing the panel. .