JPH0422173Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a ceiling-embedded air conditioner.

(Prior Art) As a conventional ceiling-embedded air conditioner, there is one disclosed in, for example, Japanese Utility Model Application Publication No. 136518/1983. FIG. 5 is a cross-sectional view of the above conventional example,
A heat exchanger 02, a drain pan 03, a fan unit 04, a filter 05, etc. are assembled into a casing 01 suspended in the ceiling space, and a ceiling board 0 is installed.
The indoor air taken in from the intake port 08 of the grill 07 attached to the grill 07 is temperature-controlled in the casing 01, and then blown into the room from the outlet 09.
By removing the grill 07 and attaching/detaching the filter 05, by removing the filter 05, the fan unit 04 can be attached/detached, and maintenance of the fan motor, fan rotor, etc. can be performed.

(Problem to be Solved by the Invention) However, in the conventional example having such a configuration, when the fan unit 04 is to be attached or detached, the fan support member to which the fan rotor and fan motor are attached must be screwed into the appropriate position within the casing. Although it is configured to be fixed, when tightening or removing screws, it is necessary to operate the screws while supporting the fan support member, which is heavy due to the fan rotor and fan motor being attached. These operations must be performed by climbing on a step stool or the like and holding out your hand, which has the disadvantage of making it difficult to attach and detach the fan support member, and there is also the risk of inadvertently loosening the force and dropping the fan unit. However, there was a drawback that the efficiency of attaching and detaching work was reduced, as sometimes two people were forced to do the work.

The present invention was developed in view of the above circumstances, and an object of the present invention is to enable the work of attaching and detaching a fan unit to be carried out safely and easily.

(Means for Solving the Problems) In order to achieve this purpose, the ceiling-embedded air conditioner of the present invention has the following features: The engaging portion 27 formed in the fan mounting plate 2
An auxiliary support member 31 is attached to the casing 1, and the lower part of the fan mounting plate 23 is configured such that the lower part of the fan mounting plate 23 can be connected to the casing 1 by screws, and the auxiliary support member 31 is mounted to support the fan mounting plate 23 which is engaged and supported by the engagement portion 27. A locking hole 33 penetrating vertically is provided on one side of the lower part of the fan mounting plate 23 and the side of the casing 1, and a locking hole 33 is provided on the other side of the fan mounting plate 23 by fitting into the locking hole 33. A locking member 34 that prevents the lower portion from moving laterally is configured to be movable and fixed at a position where it is fitted into the locking hole 33 and a lower position where it is removed from the locking hole 33.

(Function) According to the above configuration, in the normal state where the fan mounting plate 23 is attached to the casing 1, the locking member 34 is set in the position where it is fitted into the locking hole 33 of the fan mounting plate 23. From this state, fan mounting plate 2
3, first remove the screws 29 at the bottom of the fan mounting plate 23 to release the connection with the casing 1. In this case, the fan mounting plate 23 tends to fall due to the weight of the fan rotor or fan motor attached thereto, but the auxiliary support member 31
It is received on the mounting surface. At this time, in order to prevent the fan mounting plate 23 from tilting or moving laterally, the upper part of the fan mounting plate 23 is connected to the engaging portion of the casing 1.
7 can be prevented.

In this way, once the locking member 34 is safely and temporarily supported, the locking member 34 is displaced to the lower position and retired from the locking hole 33, allowing the fan mounting plate 23 to move laterally, and then, While moving the fan mounting plate 23 laterally to release the engagement with the engaging portion 27,
By lowering the fan mounting plate 23 from above the auxiliary support member 31, it can be removed from the casing 1, and the fan motor and fan rotor can be inspected and maintained as appropriate.

Furthermore, when installing after inspection and maintenance, the above operations may be performed in reverse order.

(Example) Next, an example of the present invention will be described in detail based on the drawings.

FIG. 1 is a cross-sectional view of a ceiling-embedded air conditioner according to an embodiment of the present invention, and FIG. 2 is an external perspective view thereof.

In these figures, 1 is the casing;
This casing 1 is suspended and supported from an attic structure via four anchor bolts 2.

A suction grill 4 is attached to the opening of the ceiling plate 3, and this suction grill 4 and an air intake port 5 at the bottom of the casing 1 are connected via a flexible duct 6, and an air outlet provided on the side surface of the casing 1 is connected to the suction grill 4. 7 and is connected via a duct 8 to a blowout grill provided at a suitable location (not shown).

A heat exchanger 9, a drain pan 10, a fan unit 11, and a filter 12 are provided inside the casing 1.

As shown in FIG. 3, the heat exchanger 9 is connected by screws 14 to brackets 13, 13 attached to the front inner surfaces of the left and right side plates 1a, 1b of the casing 1, and is further attached to the lower end of each bracket 13. Partition plate 1
5 is attached by screws 16.

At the lower part of the partition plate 15, the left and right side plates 1
A horizontally elongated drain pan 10 is horizontally supported across a and 1b, and notches 17 are formed in each of the longitudinal ends of the partition plate 15, so that regardless of the installation orientation of the casing 1, the heat exchanger The drain from 9 is once received by a partition plate 15, and the drain is allowed to flow down into a drain pan 10 through cutouts 17, 17, and is collected and discharged at an appropriate location.

A bracket 18 is attached to one end in the longitudinal direction of the drain pan 10, and a pair of pins 19, 19 are provided on the bracket 18 so as to protrude inward in the longitudinal direction of the drain pan 10.
A pair of elongated holes 20, 20 extending in the vertical direction are formed in the lower part of the right side plate 1b.
The pins 19 and 19 are inserted and locked from the outside into the pins 0 and 20, respectively, and in the inserted state can be vertically swung as shown by the two-dot chain line in FIG. Further, a vertical plate-shaped bracket 21 is fixed inside the other end side of the drain pan 10 with a gap between it and the lower edge to allow the flow of drain, and this vertical plate-shaped bracket 21 is attached to the left side plate 1a. It is removably attached to the holder with a screw 22.

With these configurations, by removing the screws 22, the drain pan 10 can be connected to the pin 19 and the elongated holes 20, 2.
tilting downward using the flexible engagement part with 0 as a fulcrum,
Lower the vertical plate-shaped bracket 21 below the lower end of the left side plate 1a, and then move the drain pan 10 to the right in FIG. It's getting old.

As shown in FIG. 4, the fan unit 11 has a fan rotor 2 mounted on the rear surface of the fan mounting plate 23.
A fan case 25 with a fan motor 26 horizontally mounted thereon and a fan motor 26 are attached to form a unit, and the fan case 25 is detachably attached to the casing 1 in the following manner.

The upper side of the fan mounting plate 23 is bent over the entire length, and a pair of left and right engaging portions 27, 2 are formed by cutting inward on the ceiling 1c of the casing 1.
7 is formed, and the bent upper side portion 23a of the fan mounting plate 23 is inserted into and engaged with the engaging portions 27, 27 from the front. Further, connecting seats 28, 28 are provided on the left and right side plates 1a, 1b of the casing 1, and are cut out inwardly.
A fan mounting plate 23 is attached to 8 and 28 with screws 29.

At the lower ends of the left and right side plates 1a, 1b, inwardly bent connecting seats 30, 30 are provided below the connecting seats 28. The support member 31 is horizontally suspended and fixed with screws. A sealing material 32 is attached to the upper surface of this auxiliary support member 31, and the fan mounting plate 2 is placed on this sealing material 32.
The lower end bent side 23b of No. 3 is configured to be placed thereon.

A horizontally long slit-shaped locking hole 33 is formed to pass through the left and right center portions of the lower bent side 23b, and a locking member 34 is fitted into the locking hole 33.
is attached to the rear surface of the auxiliary support member 31 via an elongated hole 35 and a screw 36 so as to be slidable and fixed in the vertical direction. It is designed to be removed from the locking hole 33 by sliding.

A filter support member 37 is connected to the lower surface of the lower bent side 23b of the fan mounting plate 23 by a screw 38, and a pair of left and right filter holding metal fittings 3 are attached to the lower surface of this filter support member 37.
9 and 39 are attached by screws 40.
As shown in FIG. 1, a receiver 41 is attached to the rear side plate 1d of the casing 1, and the rear end of the filter 12 is locked to the receiver 41, and the front end of the filter 12 is attached to the filter support member. 37, and in this state, rotate the filter holding fitting 39 to fit into the groove of the filter 12, and sandwich the filter 12 between the filter supporting member 37 and the filter holding fitting 39. It is supposed to be fixed. An elastic member 42 for holding the filter is attached to the lower surface of the rear end of the filter support member 37, so that the front end of the filter 12 can be elastically held without wobbling. Also, when replacing the filter 12, use the screw 40.
The filter holding fitting 39 can be removed from the concave groove of the filter 12 by loosening it slightly and rotating the filter holding fitting 39 laterally.

The air conditioner according to the present invention is constructed as described above, and when the fan unit 11 is removed,
Remove the suction duct 4, filter 12, filter support member 37, etc. first, and then tighten the two screws 2.
By removing 9, the fan mounting plate 23 is placed on the auxiliary support member 31 via the sealing material 32, supports the weight of the fan unit 11 in a state that is engaged with the upper engagement part 27, and is not engaged. By fitting the stop hole 33 and the locking member 34, the fan unit 1
1 to prevent it from shifting in the front-back direction. next,
Loosen the screw 36 to displace the locking member 34 downward and remove it from the locking hole 33. Then, pull out the bent upper side 23a of the fan mounting plate 23 forward from the engagement part 27, and remove the lower bent side 23b. The sealing material 32 is lowered and the fan unit 11 is pulled out from the air intake port 5 downward.

Conversely, when installing, the locking member 34
is displaced downward, and in this state, insert the fan unit 11 from the air intake port 5, and connect the lower bent side 23b of the fan mounting plate 23 to the auxiliary support member 31.
It is once placed on top with the sealing material 32 interposed therebetween, and then the bent upper side portion 23a is fitted into the engaging portion 27 and engaged. Next, the fan mounting plate 23 is pushed in, the locking member 34 is fitted into the locking hole 33 of the lower bent side 23b, and the screw 36 is tightened to fix the fan mounting plate 23,
In this state, the fan mounting plate 23 is connected and fixed to the casing 1 by tightening the screws 29, 29.

In the above embodiment, the locking member 34 is provided on the auxiliary support member 31, but for example, a support bracket may be attached to the side plate 1a or 1b of the casing 1,
Alternatively, the locking member 34 may be provided on the fan mounting plate 23 side, and the locking hole 33 may be provided on the casing 1 side.

(Effects of the invention) As described above, according to the invention, the upper part of the heavy fan unit 11 is engaged with the casing 1, and the lower part of the fan unit 11 is connected to the locking member 3.
The fan unit 11 can be screwed to the casing 1 or unscrewed with the fan unit 11 locked and positioned by the casing 1 and supported by the auxiliary support member 31. In either case, the fan unit 11
The fan unit 11 can now be installed and removed safely, easily, and efficiently even when inspection and maintenance work is carried out by one person in a place with poor footing.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of the ceiling-embedded air conditioner according to the present invention, Figure 2 is a perspective view of the overall appearance, and Figure 3 is a cross-sectional view of the ceiling-embedded air conditioner according to the present invention.
FIG. 4 is an exploded perspective view of the heat exchanger portion, FIG. 4 is an exploded perspective view of the fan unit and its associated components, and FIG. 5 is a cross-sectional view of the conventional example. 1...Casing, 23...Fan mounting plate, 2
4...Fan rotor, 26...Fan motor, 3
1... Auxiliary support member, 33... Locking hole, 34...
Locking member.

Claims (1)

[Scope of utility model registration request] The upper part of the fan mounting plate 23 on which the fan rotor 24 and the fan motor 26 are attached and supported is removably engaged and supported from the side by an engaging portion 27 formed in the casing 1, and the fan mounting plate 2
An auxiliary support member 31 is attached to the casing 1, and the lower part of the fan mounting plate 23 is configured such that the lower part of the fan mounting plate 23 can be connected to the casing 1 by screws, and the auxiliary support member 31 is mounted to support the fan mounting plate 23 which is engaged and supported by the engagement portion 27. A locking hole 33 penetrating vertically is provided on one side of the lower part of the fan mounting plate 23 and the side of the casing 1, and a locking hole 33 is provided on the other side of the fan mounting plate 23 by fitting into the locking hole 33. A ceiling-embedded air conditioner, in which a locking member 34 that prevents the lower part from moving laterally can be changed and fixed between a position where the locking member 34 is inserted into the locking hole 33 and a lower position where it is removed from the locking hole 33. harmonizer.