JP2902857B2 - 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 an air conditioner comprising a housing arranged in a ceiling space or the like and a decorative panel attached to the housing.

[0002]

2. Description of the Related Art An air conditioner composed of a housing disposed in a ceiling space or the like and a decorative panel attached to the main body is disclosed in, for example, Japanese Patent Application Laid-Open No. 63-41742. The air conditioner has a housing in which a heat exchanger, a blower, and an electrical box in which electric components for controlling the operation of these devices are stored are incorporated, and the decorative panel is provided with a removable suction grill. .

[0003]

In the above-described air conditioner, the electrical box in the housing is arranged so as to be hidden by the blind portion of the decorative panel. A large decorative panel must be removed from the housing, and there is a disadvantage that maintenance work is difficult.

It is also conceivable that an electric box is arranged in the suction passage so that maintenance can be performed from the side of the suction port. However, there is a possibility that the electric box becomes a ventilation resistance. More recently
As the control of air-conditioning operation becomes more complicated,
The number of electrical parts has also increased, and the electrical
There is a tendency to be dense and large, and the layout of the electrical box is
Instead of installing it in the extra space of the housing of the air conditioner,
It is necessary to install an electrical box with a design integrated with the air conditioner.
It has become important.

[0005] The present invention relates to the structure of an air conditioner housing.
At the same time as installing the integrated electrical box, the air conditioner can easily remove the electrical box from the housing without removing the decorative panel and maintain the electrical components in the electrical box, and this electrical box is unlikely to have ventilation resistance Is provided.

[0006]

The present invention relates to a ceiling space and the like.
And a housing attached to the bottom of this housing
A heat exchanger and conditioned air inside the housing.
A crossflow fan type blower that sends out the outside of the housing, and an electrical box containing electrical components that control the operation of these devices are arranged, and the decorative panel has an opening with a removable ventilation grill. in that form, the electrical box, through
Flat plate size that can be inserted and removed through the opening of the wind grill
To accommodate the air conditioning control electrical components inside
Guide grooves along the inner wall forming the ventilation path
It is detachably attached by a fixture having
These control electrical components and the devices in the housing are connected via connectors.
An air conditioner characterized in that it can be electrically connected to the air conditioner.

[0007]

In this air conditioner, the electric equipment box has a flat plate shape large enough to be inserted and removed through the opening of the ventilation grill.
Detachable along the inner wall of the housing that forms a ventilation path
The electrical box is easily installed on the air conditioner
Can be removed from the housing of the
Electrical box, which tends to increase the volume
To the same size as the inner wall without increasing
It is possible to install with enough room to expand.
You. Further, the electric box uses the fixture with a guide groove, housing
It is installed along the inner wall of the body,
In addition to being less likely to cause the ventilation resistance of the loss flow fan,
Contacting the suction air on the surface of the electrical component box in location, yield the electrical component box
The heat radiation of the stored electric components can also be kept good.

[0008]

An embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a heat exchanger composed of a heat exchanger 1a through which a refrigerant flows and a heat exchanger 1b through which hot water flows, and 2 denotes a cross-flow fan disposed downstream of the heat exchanger. Hereinafter, these are referred to as blowers. 3 is an electrical box in which electric components for controlling the operation of the blowers and the heat exchanger 1 are stored. These electrical boxes, the heat exchanger 1, and the blower 2 are airframes of the air conditioner 4. [Hereinafter referred to as a housing] 5.

Reference numeral 6 denotes a decorative panel attached to the lower part of the housing and the ceiling plate 20. The decorative panel has a suction grill (ventilation grill) 7 which is detachably provided. The grill is attached to the decorative panel 6 by a hinge (not shown) such that when the suction grill 7 is rotated by 45 ° or more, the suction grill can be detached from the decorative panel 6.

Reference numeral 8 denotes a drain pan for receiving the drain from the heat exchanger 1, reference numeral 9 denotes a tongue which is connected to the drain pan and forms a passage wall of a blow-out passage, and reference numeral 10 denotes a mounting frame mounted on the electrical box 3 and the inner wall 11 [FIG. Through FIG. 3], the air cleaning filter 12 is detachably attached. This air cleaning filter is composed of, for example, a charging filter element and a deodorizing filter element.

Reference numerals 13 and 14 denote the electrical box 3 and the inner wall 1 of the housing 5.
It is a fixture for attaching to 1. In addition, the decorative panel 6
An inlet (opening) 15 and an outlet 16 are formed in the air outlet. A suction grill 7 is arranged in the inlet, and wind direction change plates 17 and 18 are arranged in the outlet 16.
On the back side of the suction grill 7, a net is formed in a waveform, and a pre-filter 19 which can be used without cleaning for a long time is provided detachably.

FIGS. 3 to 6 show how to remove the electrical box, and the decorative panel 6 and the ceiling plate 20 are not shown.

Reference numeral 21 denotes a suspender for suspending the housing 3 in the ceiling space, 22 denotes a fixture for attaching the mounting frame 10 to the inner wall 11, and 23 denotes a fixture opposite to the fixture 22.
Reference numerals 4 and 25 denote hooks protruding from the electrical box 3 and are fitted into guide grooves 13a and 14a of the fixtures 13 and 14, respectively. For this reason, the hooks 24 and 25 are
When the electrical box 3 is pushed deeper into the inner wall 11 in a state where the electrical box 3 is fitted in the a and 14a, the electrical box 3 is guided to a predetermined position. Reference numeral 26 denotes the blower 2 and the heat exchanger 1 in the housing 5.
A lead wire 27 for connecting a flow control valve or the like to the electric component in the electrical box 3 is a connector for connecting the lead wire to a connector 28 of the electrical box 3.

FIGS. 7 to 9 show how to disassemble the electric box. Reference numeral 3a denotes a right side plate of the electric box, which is fixed by screws 3b. The side plate 3a is removed.

When the side plate 3a is removed, the connector 29 and the terminal plate 3 to be connected at the time of installation work of the air conditioner are removed.
0 is exposed. The side plate 3a can be removed without removing the mounting frame 10. Reference numeral 3c denotes a left side plate which covers the internal electric components on the rear and left sides of the side plate 3a. The side plate is fixed with screws 3d, and the side plate 3c is removed by removing these screws. Also, 3
"e" is a front panel of the electrical box 3, which is fixed with screws 3f, and the front panel is removed by removing these screws.

Each of the side plates 3a, 3c and the front plate 3e is formed of a metal plate. Although the decorative panel 6 is not shown in the figure, the side panels 3a, 3c and the front panel 3e can be removed from the electrical box 3 while the decorative panel is attached to the housing 3, so that the internal electric parts are provided. 31
Can be maintained.

If maintenance work is difficult at a high place, the hooks 25 and 26 are inserted into the guide grooves 1 as shown in FIG.
The electrical box 3 is pulled down to the lower side of the housing while being along the 3a, 14a, and the hooks 24, 25 are lowered to the lowermost grooves 13a, 14
a, the hooks 24, 25 are disengaged from the grooves 13a, 14a.
The electrical box 3 can be removed from the inner side wall 11. still,
Removal of the electrical box 3 is performed by the side plates 3a and 3c and the front plate 3e.
This can be performed in a state where it is removed (see FIG. 6) or in a state where the side plates 3a and 3 and the front plate 3e are removed (not shown).

In the air conditioner 4 configured as described above,
When maintaining the electrical components 31 in the electrical box 3,
The suction grill 7 is removed from the decorative panel 6 by rotating the suction grill 7 by 45 degrees or more and removing the hinge (not shown) of the suction grill 7 from the decorative panel 6. When the suction grille 7 is removed from the decorative panel 6 and the suction grille 7 is opened, the operator first removes the mounting frame 10 attached to the electrical box 3 and the inner side wall 11 from the suction opening 15.
Next, the side plate 3a is removed by removing the screw 3b, and the side plate 3c is removed by removing the screw 3d.
The front plate 3e is removed by removing the screw 3f. In this state, the worker can face the electric component 31, so that maintenance such as maintenance, inspection, and replacement of the electric component 31 can be performed. And, if necessary, the electrical box 3
With the side plates 3a, 3c and the front plate 3e removed,
Alternatively, as shown in FIG. 6, the side plates 3a and 3c and the front plate 3
e can be removed from the inner wall 11 while being attached, and moved from a high position near the ceiling plate 20 to a low position, so that maintenance can be performed in an easy posture and a stable position of the scaffold.

As described above, since the electric component 31 in the electric component box 3 can be maintained without removing the decorative panel 6, the maintenance can be performed very easily.

Further, since the electrical box 3 is mounted along the inner side wall 11 of the housing forming the flow of air by the blower 2 in the housing 5 by the fixtures 13 and 14, the control is performed. Machine
The structure becomes complicated, the number of control electric parts increases, and the volume increases.
Of the electrical box 3, which tends to be
Can have room to expand. like this
The installation of the electrical box 3 is based on
From the flow, it is as if the wall was integrated with the inner wall 11
So the surface hardly becomes a resistance of ventilation, yet because it is possible to contact the suction air on the surface of the electrical component box 3 at this position, the electrical component heat dissipation is good for Ri, in the electric box 3
Prevents overheating of electrical components or changes in temperature
Malfunctions and control malfunctions can be prevented.

In this embodiment, an example is described in which an intake grill is used as a ventilation grill and a housing arranged in a ceiling space is used as a housing. However, a ventilation grill and an outlet grill are used as a housing. An air conditioner using a device embedded in a wall or a housing attached to the wall may be used.

[0023]

According to the present invention, a housing arranged in a ceiling space or the like is provided.
In the body, a heat exchanger, a cross flow fan type blower,
An electrical box is provided , and the electrical box is provided through the opening of the ventilation grill.
Into a flat plate shape large enough to insert and remove
Since detachably provided Ke attached <br/> in and along the inner wall surface of the housing forming the air passage, the electrical component box, without removing the decorative panel, easily removable from the housing of the air conditioner Control electric
Maintenance work of electrical components such repair or within the electrical box of the gas components
Work , and the air conditioning control mechanism is complicated,
The electrical box, which tends to increase the volume due to the number of parts
Almost the same as the inner wall without increasing the body of the harmonic machine
Mounting the electrical box with enough space to expand to the size
Can be removed. The electrical box has a guide groove
Since it is attached along the inner wall surface of the housing with fixtures ,
It is hard to be the ventilation resistance of the blower .
Since it is possible to contact the suction air on the surface of the electrical equipment
The heat radiation of the electric parts stored in the box is also improved,
Control malfunction due to overheating or temperature noise can be prevented.
You.

[Brief description of the drawings]

FIG. 1 is a sectional view of an air conditioner showing one embodiment of the present invention.

FIG. 2 is a perspective view showing a state where a suction grill of the air conditioner is opened.

FIG. 3 is a perspective view showing an air cleaning filter of the air conditioner.

FIG. 4 is a perspective view showing a relationship between an electric component box and a fixture of the air conditioner.

FIG. 5 is a perspective view showing a relationship between an electrical box of the air conditioner and a fixture on the opposite side.

FIG. 6 is a perspective view showing a state where an electrical box of the air conditioner is removed from an inner wall of a main body.

FIG. 7 is a perspective view showing a state in which a right side plate of an electrical box of the air conditioner is removed.

FIG. 8 is a perspective view showing a state where a right side plate of an electrical box of the air conditioner is removed.

FIG. 9 is a perspective view showing a state in which a left side plate of an electrical component box of the air conditioner is removed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat exchanger 2 Cross flow fan [blower] 3 Electrical box 4 Air conditioner 5 Airframe [housing] 6 Decorative panel 7 Suction grill [Ventilation grill] 11 Inner side walls 13, 14 Fixture 15 Suction port [Opening] 31 Electrical component

──────────────────────────────────────────────────続 き Continued on the front page (56) References JP-A-3-241891 (JP, A) JP-A-3-6235 (JP, U) (58) Fields investigated (Int.Cl. ⁶ , DB name) F24F 1/00 401

Claims (1)

(57) [Claims] A housing arranged in a ceiling space or the like;
With a decorative panel attached to the lower part of the body, inside the housing
Is a heat exchanger and a crossfoil that sends conditioned air out of the enclosure.
And a low fan-type blower, and electrical box electrical component is accommodated for controlling the operation of these devices is arranged, the decorative panel
Also to form an opening having a removable ventilation grille
The electrical box is inserted through the opening of the ventilation grill
Air conditioning control electricity inside a flat plate that can be removed
Parts are accommodated and attached by fixtures having guide grooves along the inner wall surface forming the ventilation path of the blower.
It is detachably mounted, and furthermore, these control electric parts and the housing
It can be electrically connected to devices inside the body via connectors.
An air conditioner characterized by being Unishi.