JPH08285318A - Wall type air conditioning equipment - Google Patents

Abstract

PURPOSE: To facilitate the cleaning of an air filter by providing a rack along the vertical direction of a suction grill while the main body is provided with a pinion gear to be meshed with the rack and a motor for rotating the gear to allow opening or closing of the suction grill. CONSTITUTION: A rack 22 is provided along the vertical direction of a suction grill 21 while the main body 20 is provided with pinion gears 25 and 26 to be meshed with the rack 22 and a motor for rotating the gears. When the pinion gear 25 is rotated normally by the motor, with the lowering of the rack 22, the suction grill 21 moves askew downward with respect to the main body 20 and the moment a stopper 23 hits a member such as the pinion gear 25 or a limit switch, the motor or the rack 22 is stopped. Under such a condition, an air filter 27 is taken out of the rear of the suction grill 21 to clean up.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art One example of a conventional wall-mounted air conditioner is shown in FIG. Juan casing 1 and front panel 2
A suction grill (10) is rotatably supported around a shaft (12) on the upper front surface of a main body (19). A heat exchanger 3 is disposed inside the main body 19 so as to face the suction grille 10, a flow-through fan 4 is disposed downstream of the heat exchanger 3, and an air filter 9 is disposed upstream thereof. Are arranged and detachably attached to the main body 19.

A drain pan 8 is disposed below the heat exchanger 3 and has an outlet 5 formed in a lower portion of the front panel 2.
Horizontal flaps 6a, 6b and a louver 7 are provided in the.

During operation of the air conditioner, the once-through fan 4 rotates, and the refrigerant from the outdoor unit (not shown) circulates in the heat exchanger 3.

Then, the room air is sucked into the main body 19 through the suction grille 10 and, when passing through the air filter 9, the dust contained therein is removed. Then, in the process of passing through the heat exchanger 3, it is cooled or heated by exchanging heat with the refrigerant, then sucked into the flow-through fan 4 and urged, and then blown out by the louver 7 and the horizontal flaps 6a and 6b. It is regulated and blown out into the room from the outlet 5.

[0006]

This kind of wall-mounted air conditioner is usually installed on a wall surface in a room through a mounting plate 11 at a height higher than the height of a person. Then, when the air filter 9 becomes dirty or when a predetermined operation time has passed, the air filter 9 needs to be taken out and cleaned.

In the conventional wall-mounted air conditioner, however, the upper part of the suction grill 10 is pivotally supported on the upper part of the front surface of the main body 19 about the horizontal shaft 12, so that the air filter 9 is cleaned. If you want to do so, you must ride on a chair or stepladder, open the suction grill 10 as shown in FIG. 4, and then attach and detach the air filter 9 while holding the suction grill 10 with your hands. Not only was there a danger, it was dangerous.

[0008]

SUMMARY OF THE INVENTION The present invention has been invented to solve the above-mentioned problems, and the gist of the present invention is to suck into the main body through a suction grill provided on the front surface of the main body. In the wall-mounted air conditioner in which the stored indoor air is blown into the room from the outlet through the air filter, the heat exchanger, and the fan in this order, a rack is provided on the suction grill along the vertical direction thereof, and The wall-mounted air conditioner is provided with a pinion gear that meshes with the rack and a motor that rotationally drives the pinion gear.

Another feature is that the rack is obliquely provided on the suction grill so that the suction grill moves obliquely downward with respect to the main body.

Another feature is that a plurality of pinion gears or rollers for guiding the movement of the rack are provided in the main body.

Still another feature is that stoppers are provided at both ends of the rack.

Still another feature is that the air filter is detachably attached to the back surface of the suction grill.

[0013]

In the present invention, when the pinion gear is rotationally driven by the motor, the rack and the suction grill that mesh with the pinion gear move vertically.

If the rack is obliquely provided on the suction grill, the suction grill can be moved obliquely downward with respect to the main body.

If a plurality of pinion gears or rollers are provided on the main body, the movement of the rack can be guided by these.

If stoppers are provided at both ends of the rack, the vertical movement amount of the rack can be regulated by these stoppers.

If the air filter is detachably attached to the back surface of the suction grill, the air filter can be attached to and detached from the suction grill with the suction grill being lowered.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT One embodiment of the present invention is shown in FIGS. Racks 22 are provided obliquely along the up-down direction on the left and right sides of the back surface of the suction grill 21, and stoppers 23, 24 are provided at both upper and lower ends of the rack 22. An air filter 27 is detachably attached to the back surface of the suction grill 21.

On the other hand, the main body 20 has a pinion gear 25 meshed with teeth 22A formed on the rear surface of the rack 22 and a pinion gear 26 meshed with teeth 22B formed on the front surface of the rack 22 at predetermined intervals. Each of the pinion gears 25 and 26, for example 25, is rotatably supported around a horizontal axis at a distance from each other, and is driven to rotate in a forward or reverse direction by a motor (not shown).

Reference numeral 28 is an air circulation hole provided on the front surface of the main body 20. Other configurations are similar to those of the conventional one shown in FIG. 3, and corresponding members are designated by the same reference numerals and the description thereof is omitted.

When the pinion gear 25 is normally rotated by the motor, the rack 22 is lowered, and the suction grill 21 is moved obliquely downward with respect to the main body 20, and the stopper 23 or the pinion gear 25 or not shown. The motor or rack 22 stops when it collides with a member such as a limit switch, and FIG.
Occupy the state shown in. In this state, the air filter 27 is taken out from the back surface of the suction grill 21 and cleaned.

When the cleaning of the air filter 27 is completed, it is attached to the back surface of the suction grill 21, and then the motor is rotated in the reverse direction. Then, the pinion gear 25 reverses and the rack
22 rises and the stopper 24 comes into contact with the pinion gear 25 or a member such as a limit switch (not shown) to stop the motor or rack 22 and occupy a position covering the front surface of the main body 19 as shown by the solid line in FIG. .

Thus, the suction grill can be operated by operating the switch or the button to rotate the motor forward or backward.
Since the 21 can be raised and lowered, the suction grill 21 can be opened and closed without the need for a chair or stepladder.

Further, since the suction grille 21 is moved obliquely downward with respect to the main body 20 by a predetermined amount to open and maintain this open posture,
If the air filter 27 is attached and placed on the back surface of the suction grill 21, the air filter 27 can be easily attached to and detached from the suction grill 21 without holding the suction grill 21 in an open state by hand.

In the above embodiment, one of the two pinion gears 25 and 26 is rotationally driven by the motor, but both can be rotationally driven. Also,
It is also possible to provide three or more pinion gears to guide the rack 22, and it is also possible to provide teeth on only one side of the rack 22 and guide the other side by rollers.

[0026]

According to the present invention, when the pinion gear is rotationally driven by the motor, the rack and the suction grill meshing with the pinion gear move vertically, so that the suction grill can be easily carried out without the need for a chair or stepladder. It can be opened and closed.

If the air filter is detachably attached to the back surface of the suction grill, the air filter can be easily removed from the suction grill with the suction grill being lowered.

If the rack is obliquely provided on the suction grill, the suction grill can be moved obliquely downward with respect to the main body, so that the air filter can be easily attached and detached.

If a plurality of pinion gears or rollers are provided on the main body, the suction grill can be smoothly moved up and down by guiding the movement of the rack.

If stoppers are provided at both ends of the rack, the vertical movement amount of the rack can be regulated by these stoppers, so that the suction grill can be stopped at a predetermined lowered position or at a predetermined position for covering the front surface of the main body. .

[Brief description of drawings]

FIG. 1 is a schematic vertical sectional view taken along the line AA of FIG. 2 showing an embodiment of the present invention.

FIG. 2 is an external perspective view showing a state in which the suction grill of the above embodiment is lowered.

FIG. 3 is a vertical cross-sectional view of a conventional wall-mounted air conditioner.

FIG. 4 is an external perspective view showing how to open and close a suction grill of a conventional wall-mounted air conditioner.

[Explanation of symbols]

 20 Body 21 Suction grill 22 Rack 25, 26 Pinion gear

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shoichi Uno 3-1, Asahi-cho, Nishibiwajima-cho, Nishikasugai-gun, Aichi Prefecture Mitsubishi Heavy Industries, Ltd. Air Conditioning Factory

Claims (4)

[Claims] 1. Indoor air sucked into the main body through an intake grill provided on the front surface of the main body is an air filter,
In a wall-mounted air conditioner in which a heat exchanger and a fan are blown in this order to blow out indoors, a rack is provided on the suction grill along the vertical direction thereof, and a pinion gear that meshes with the rack is provided on the main body and a rack. A wall-mounted air conditioner comprising a motor that rotationally drives a pinion gear. 2. The wall-mounted air conditioner according to claim 1, wherein the rack is obliquely provided on the suction grill so that the suction grill moves obliquely downward with respect to the main body. 3. The wall-mounted air conditioner according to claim 1 or 2, wherein a plurality of pinion gears or rollers for guiding the movement of the rack are provided in the main body. 4. The wall-mounted air conditioner according to claim 1, wherein stoppers are provided at both ends of the rack. 4. The air filter is detachably attached to the back surface of the suction grill.
The wall-mounted air conditioner according to 2, 3, or 4.