JP2002349893A - Ceiling-buried air conditioning equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide ceiling-buried air-conditioning equipment that can make the attaching and detaching work of a filter easier at the cleaning time, exchanging time, etc., of the filter. SOLUTION: This ceiling-buried air-conditioning equipment 100 is provided with a grill frame 4 having an air outlet 5 and an air inlet 6 at the lower end of its main body 1 which is buried in a ceiling. The air inlet 6 of the frame 4 is provided with a suction grill 10. The filter 11 which is used for cleaning sucked air is detachably attached to the opening of the suction grill 10. The air conditioner 100 is also provided with a vertically moving grill 200 constituted so that the suction grill 10 and filter 11 may be lowered integrally to a filter exchanging position X. This air conditioner 100 is constituted to incline the grill 200 at the filter exchanging position X.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-mounted air conditioner.

[0002]

2. Description of the Related Art At a lower end of a main body embedded in a ceiling, a grille frame having an air outlet and a suction port is provided, and a suction grille for supporting a filter is provided at a suction port opening of the grille frame.
There is known an air conditioner in which the suction grille is formed so as to be able to move up and down together with the filter, and when the filter is replaced, the suction grille is lowered together with the filter so that the filter can be replaced in a low place.

[0003]

In the conventional configuration, it is important to facilitate the attachment and detachment of the filter installed on the suction grille at the time of replacement and cleaning of the filter, thereby improving the efficiency of maintenance work of the air conditioner. It is a problem.

An object of the present invention is to provide a ceiling-mounted air conditioner that solves the above-mentioned problems of the conventional technology and makes it easy to attach and detach a filter when cleaning or replacing the filter.

[0005]

According to the first aspect of the present invention, a grill frame having an air outlet and a suction port is provided at a lower end of a main body buried in a ceiling, and the grill frame has a suction port. A suction grill is provided, and a filter for purifying suction air is detachably installed in an opening of the suction grill,
In the ceiling-embedded air conditioner including an elevating grill configured so that the suction grill and the filter can be integrally lowered to a filter replacement position, at the filter replacement position,
The lifting grill is characterized in that the grill is inclined.

According to a second aspect of the present invention, in the first aspect, the lifting grille suspends four corners of the suction grille on the grill frame with hanging strings, and the suction grille is At the time of descending, the lifting string is provided at two positions in the longitudinal direction among the hanging positions of the suction grill, and the lifting grill is inclined.

According to a third aspect of the present invention, in the second aspect, a means for tilting the elevating grill toward the center of the room to be harmonized is provided.

According to the first to third aspects of the present invention, since the elevating grill is tilted, a filter surface appears and the state of the filter is confirmed.

The invention described in claim 4 is the first to third aspects of the present invention.
In the above description, the lifting grille is configured such that four corners of the suction grille are hung on the grill frame by hanging strings, and when the suction grille is lifted, of the hanging positions of the suction grille, A lifting string is wound at two positions in the direction, and the lifting grill is returned to a horizontal state.

In the present invention, the suction grill is mounted on the grill frame in a horizontal state in order to return the suction grill to a horizontal state and raise the suction grill.

[0011]

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

FIG. 1 is a diagram showing a ceiling-mounted air conditioner 100 according to the present invention. As shown in FIG. 1, the ceiling-mounted air-conditioning apparatus 100 is installed on a ceiling in a living space, and is particularly provided near a wall. The main body 1 is buried inside the ceiling.

As shown in FIGS. 2 and 3, a heat exchanger 2, a blower 3 and the like are housed inside the main body 1. A grill frame 4 is fixed to a lower end of the main body 1. At one end of the grill frame 4, an air outlet 5 is provided near the wide area side of the living space. Air is discharged from the outlet 5 to the wide area side of the living space (the center side of the harmonized room). A suction port 6 is provided on the other end side of the grill frame 4 at a position close to the wall, and air is sucked from the suction port 6. An elevating grill 200 is provided at the suction port 6.

The lifting grill 200 includes a suction grill 10,
A lifting mechanism 20 for lifting and lowering the suction grill 10.

At the opening of the suction grill 10, a filter 11 for purifying the suction air is detachably installed. These suction grill 10 and filter 11
As shown in FIG. 1, it is suspended by a grill frame 4 via four suspension strings 12 and 13 so as to be able to move up and down.

One end 12a, 13a of four suspension strings 12, 13 is fixed to each of four places of the suction grille 10, and the other ends 12b, 13b of the suspension strings 12, 13 are connected to each other.
It is connected to a lifting mechanism 20.

As shown in FIGS. 2 and 3, the elevating mechanism 20 has mechanical parts 21A and 21B. The mechanical parts 21A and 21B are installed in parallel with the longitudinal direction of the grille frame 4. Then, as shown in FIG. 3, it is fixed so as to face the suction port 6 therebetween. These mechanical parts 2
Inside each of 1A and 21B, two rollers (not shown) are provided, and the rollers are connected to both ends of a shaft (not shown). The shaft is connected to an output shaft of a motor via a gear (not shown). I have. The mechanical parts 21A, 21
The other end 12b, 13b of each of the above-described suspension strings 12, 13 is trial-fitted to each roller B.

When the motors of these mechanical parts 21A and 21B rotate, the rollers are connected to the shaft.
Power is transmitted to the rollers, and the rollers rotate integrally with the shaft, and the respective suspension strings 12, 13 are paid out / rewound.

In the control device, the motor is controlled when the grill elevating operation is selected by the remote controller 30 which is wirelessly communicated with the control device. The grill elevating operation includes an ascending operation and a descending operation of the suction grill 10 and is used during maintenance work such as cleaning and replacement of the filter 11.

At the time of this maintenance work, first, the operator A selects the descent operation of the grill elevating operation from the remote controller 30. When the descent operation is selected, the motors of the mechanical units 21A and 21B are started by the control device (not shown),
From the rollers of these mechanical parts 21A and 21B,
The suction grilles 10 are started to descend from the ceiling. At this time, the extension amounts of the hanging strings 12, 13 which are extended from the rollers are maintained at the same amounts by the control device, and the suction grill 10 is lowered while maintaining the horizontal state.

When the suction grill 10 is in the filter replacement position X
When the vehicle descends to the nearby position Y, the control device (not shown) starts counting the first time. The first time is a time until the suction grill 10 is lowered from the position Y to the filter replacement position X. While the first time is counted, the suction grill 10 is lowered to the filter replacement position X in a horizontal state. When the suction grill 10 is lowered to the filter replacement position X, the mechanical parts 21A,
Among the motors 21B, the motor of one mechanical unit 21B is stopped. Then, the control device (not shown) starts counting the second time. The second time is a time during which the suction grill 10 is tilted from the horizontal state to the tilt angle a. During this second time, only the motor of the other mechanical unit 21A is activated, the suspension string 12 is drawn out from the rollers of the other mechanical unit 21A, and the suction grill 10 is moved from the horizontal state to the central part side of the harmonized room ( (Air discharge side). When the suction grill 10 is tilted to the tilt angle a, the other mechanical unit 21A is controlled by a control device (not shown).
Are stopped, and the descent operation is stopped.

Here, it is desirable that the filter replacement position X is a low position where the worker A can perform maintenance work. This filter replacement position X is located at one mechanical unit 21B.
Of the suspension string 13 fed from the roller. For example, in a living space with a ceiling height of about 2.5 m, the filter replacement position X
Is drawn out about 1 m, and the suction grill 10 is at a position lowered by about 1 m.
m height.

In addition, the inclination angle a is set such that the filter 11 is positioned in the field of view of the worker A located on the wide area side of the living space (center side of the room to be harmonized) at the filter replacement position X.
It is desirable that the angle be such that the surface can be confirmed. For example, it is inclined by 45 degrees from the horizontal position toward the center portion (air discharge side) of the conditioned room.

Next, at the filter replacement position X,
The operator A sets the filter 11 to the suction grill 10
Removed, cleaned and replaced. Thereafter, the filter 11 is attached to the suction grill 10, and the operator A selects the ascending operation of the grill elevating operation from the remote controller 30 by the operator A.

When the ascending operation is selected, the control unit (not shown) starts counting the third time. During this third time, the suction grill 10 tilted at the tilt angle a
Is the time required to return to the horizontal state. When the third time starts counting, first, the motor of one mechanical unit 21A is started, and the hanging string 12 is moved to the other mechanical unit 21A.
And one end of the suction grille 10 inclined toward the center (air discharge side) of the chamber to be conditioned is raised while returning to a horizontal state.

Next, when the suction grill 10 is returned to the horizontal state, the motor of the other mechanical unit 21B is started, and the upper suction grill 10 is raised in the horizontal state. Then, the suction grill 10 is inserted into the grill frame 4 in a horizontal state. When the suction grill 10 is inserted into the grill frame 4, the ascending operation is stopped by a control device (not shown).

According to this embodiment, the filter 1
At the time of cleaning and replacing 1, the suction grill 10 is lowered and tilted toward the center of the conditioned room (air discharge side), so that the operator A can confirm the state of the filter 11;
There is an effect that the attachment / detachment work of the filter 11 can be easily performed.

Further, according to this embodiment, after cleaning and replacing the filter 11, the suction grill 10 is returned from the inclined state to the horizontal state and is raised in the horizontal state. Can be smoothly and smoothly attached to the grill frame 4. Further, since the suction grill 10 is raised while maintaining a horizontal state, the suction grill 1
Zero vibration can be suppressed.

Although the present invention has been described based on the above embodiment, the present invention is not limited to this.

For example, the elevating grill 200 may be provided with a structure in which the suction grill 10 is lowered while being tilted in the descent operation of elevating the grill. In this case, when the suction grill 10 is lowered to the position Y near the filter replacement position X, the control unit (not shown) causes the mechanical unit 21 to move downward.
Of the motors A and 21B, the number of rotations of the motor of one of the mechanical parts 21A is increased to increase the amount of extension of the suspension string 12, and one end of the suction grill 10 is moved from the horizontal state to the air discharge side. It is descended while being tilted.

Further, for example, the lifting grill 200 may have a configuration in which the suction grill 10 is raised while returning from a tilted state to a horizontal state in a raising and lowering operation of the grill. In this case, the motors of the mechanical units 21A and 21B are started by a control device (not shown), and
2 and 13 are wound around the rollers of the mechanical units 21A and 21B, and the suction grill 10 starts to be raised. At this time, of the motors of the mechanical units 21A and 21B, the rotation speed of the motor of one mechanical unit 21A is increased by a control device (not shown), and Is increased from the winding amount of the hanging string 12, and one end side of the suction grille 10 inclined to the air discharge side is raised while returning to the horizontal state. Then, at a position Y near the filter replacement position X, the suction grill 10 is returned from the inclined state to the horizontal state.

For example, the one-way cassette type air conditioner has been described, but the present invention is also applicable to a two-way cassette type and a four-way cassette type. In this case, the direction in which the suction grill is inclined is not limited to the air discharge side.

[0033]

According to the first to third aspects of the present invention,
Since the suction grill is tilted, the filter surface appears, the condition of the filter is confirmed, and cleaning and replacement of the filter are very convenient, and the filter can be easily attached and detached.

According to the fourth aspect of the present invention, since the suction grill is returned from the inclined state to the horizontal state and rises, the suction grill is mounted on the grill frame in the horizontal state, and the suction grill is smoothly and smoothly mounted. There is an effect that can be.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of an in-ceiling air conditioner according to the present invention.

FIG. 2 is a longitudinal sectional view of the ceiling-mounted air conditioner shown in FIG.

FIG. 3 shows a ceiling-mounted air conditioner shown in FIG.
It is a figure which shows the positional relationship between a suction grille and an operator at the time of cleaning and replacement work of a filter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 5 Air outlet 4 Grill frame 6 Suction port 10 Suction grill 11 Filter 12 Hanging string 13 Hanging string 20 Lifting mechanism 21A Machine part 21B Machine part 30 Remote control 100 Ceiling embedded air conditioner 200 Lifting grill X Filter exchange position

Claims (4)

[Claims] A grill frame having an air outlet and a suction port is provided at a lower end of a main body embedded in a ceiling, a suction grill is provided at a suction port of the grill frame, and an opening of the suction grill is provided at an opening of the suction grill. In a ceiling-embedded air conditioner, a filter for purifying suction air is detachably installed, and the suction grill and the filter are integrally lifted and lowered to a filter replacement position. An embedded ceiling type air conditioner, characterized in that the elevation grill is inclined at the filter replacement position. 2. The lifting grill, wherein four corners of the suction grill are hung on the grill frame by hanging strings, and when the suction grill descends, a longitudinal portion of the hanging position of the suction grill. The ceiling-embedded air conditioner according to claim 1, characterized in that a hanging string located at two locations in the direction is extended to tilt the elevating grill. 3. The ceiling-mounted air conditioner according to claim 1, wherein the lifting grill has a configuration inclined toward a center of the room to be conditioned. 4. The lifting grill, wherein four corners of the suction grill are hung on the grill frame by hanging strings, and when the suction grill is lifted, the longitudinal position of the suction grill is suspended. The ceiling-mounted air conditioner according to any one of claims 1 to 3, further comprising a configuration in which hanging strings are wound at two positions in the direction and the elevating grill is returned to a horizontal state.