JP2002081684A - Suction grill of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction grill capable of concealing so as not to see an internal structure of an air conditioner through a gap of lateral gratings, without increasing a ventilating resistance and a suction resistance in an air conditioner having the grill constituted of a plurality of lateral gratings. SOLUTION: The suction grill of the air conditioner comprises the plurality of lateral gratings inclined forward upward, and a suspending part suspended to a position equal to or lower than a highest position of the grating of one step lower at a rear end of each lateral grating of the grill.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner and, more particularly, to an improvement of a suction grill installed at an inlet of an indoor unit. It is intended to provide.

[0002]

2. Description of the Related Art First, the overall schematic structure of an indoor unit of an air conditioner will be described with reference to FIG. The outlet 3 is open. A heat exchanger 4 is provided in the casing 1 so as to face the suction port 2, and a fan 5 is provided behind the heat exchanger 4, and the fan 5 sucks the air from the suction port 2. After exchanging the heat with the heat exchanger 4, the air is blown into the room from the outlet 3,
It is configured to cool and heat the room. Reference numeral 6 denotes an air filter provided on the front surface of the heat exchanger 4, and reference numeral 7 denotes a drain pan provided below the heat exchanger 4. Reference numerals 8 and 9 denote horizontal blades and vertical blades provided near the outlet 3, respectively. The inlet 2 has a suction grill 1
0, the suction grille 10 includes a rectangular frame 11 having open front and rear surfaces, a cover plate 12 for closing a lower front portion of the frame 11, and a cover plate in the frame 11. A plurality of horizontal grids 14 extending in parallel with each other at predetermined intervals 13 in the vertical direction at portions other than the portion 12, and a vertical grid (not shown) for connecting the horizontal grids 14 vertically at appropriate intervals. ing. In such a suction grill, in order to make the internal structure of the air conditioner invisible through the space 13 between the horizontal grilles 14, in the conventional suction grill, the horizontal grilles 14 are inclined forward and upward as illustrated in FIG. And a rising portion 1 slightly rising upward at the front end of each horizontal lattice 14.
4a was formed.

[0003]

However, not only when the harmony device is viewed horizontally from the front, but also when the harmony device is installed on a wall or the like and is slightly looked up from below, the rising portion 14a and the rear end of the horizontal lattice 14 are not affected. Outside the field of view blocked by the air conditioner, the aluminum ground color of the heat exchanger 4 still inside the air conditioner is visible through the mesh of the air filter 6 due to the spacing 13 between the horizontal lattices 14 and impairs the appearance. I was If the depth of the horizontal lattice 14 is increased to make the internal structure 4 of the air conditioner invisible, the size of the suction grille 10 is increased, which is not only unfavorable, but also has a drawback that ventilation resistance increases. Further, it is conceivable that the visibility is obstructed by narrowing the interval 13 between the horizontal lattices 14, but there is still a disadvantage that the ventilation resistance increases and the air volume decreases. When the rising portion 14a is provided as in the conventional example described above, it is conceivable that the rising portion 14a is made as high as possible to block the field of view. However, narrowing the opening on the suction side of the suction grille 10 increases the suction resistance. It is not preferable because it leads. Therefore, it is an object of the present invention to effectively block the field of view without increasing the depth dimension of each horizontal lattice or reducing the interval, and without narrowing the opening on the suction side of the suction grille. It is an object of the present invention to provide a suction grille structure capable of concealing the internal structure of the air conditioner through the space between the horizontal lattices.

[0004]

In order to achieve the above object, in the present invention, a hanging portion is provided at the rear end of each horizontal lattice to block the field of view. That is, the present invention provides an air suction grill at an upper portion and an air outlet at a lower portion, a heat exchanger and a fan behind the suction grill, and air for sucking air sucked from the suction grill through a heat exchanger to blow out from the air outlet. In the harmonic machine, a hanging portion is formed at a rear end portion of each of the horizontal grilles of the suction grill formed of a plurality of horizontal grilles inclined forward and upward, and the hanging portion is located at the highest position of the horizontal grid one step below. It features a suction grille hanging down to the same or lower position. With the above configuration, when the indoor unit is installed on a wall or the like, the visibility is blocked by the hanging portion provided at the rear end of each horizontal lattice, and the inside of the air conditioner located inside the suction port from the front is blocked. It can be a suction grill with no visible structure. Further, since the hanging portion is provided at the rear end of each horizontal lattice, the opening on the suction side of the suction grill is not narrowed, so that the suction resistance does not increase. Further, as described in claim 2, the hanging portion may be provided, and a rising portion which rises upward may be formed at the front end of each horizontal lattice. In this case, the hanging portion may be hung down to a position equivalent to or lower than the upper end of the rising portion of the horizontal lattice one step below, so that the degree of sagging may be less than in the case of the hanging portion alone. Further, since the inside is blocked by the hanging part and the rising part, the rising part is not made high and the opening on the suction side of the suction grille is narrowed as in the case of blocking only by the rising part. The hanging part may be hung vertically downward at the rear end of each horizontal lattice.
The horizontal lattice may be provided to be inclined backward and downward from the rear end. When provided in such an inclined manner, the flow of air sucked from the suction grille becomes smooth. Furthermore,
According to a fourth aspect, when an arc-shaped or linear chamfer is applied to a corner located at a continuous portion between the inclined portion and the rising portion and / or the hanging portion of each horizontal lattice, the area of the ventilation portion of the suction grill is reduced. As a result, the ventilation resistance can be reduced, the blowing performance of the fan can be improved, and the operating efficiency of the air conditioner can be improved. According to a fifth aspect of the present invention, in addition to the configuration of the fourth aspect, at the rising portion and / or the end of the hanging portion of each of the horizontal lattices, at least a portion facing the suction passage has a straight or arc-shaped chamfer. , The ventilation resistance can be further reduced.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the overall schematic configuration of an indoor unit of a wall-mounted air conditioner implementing a suction grill according to the present invention, and the configuration of each part is as described above. FIG. 2 is an enlarged view of the cover plate portion 12 and the horizontal grid 14 constituting the suction grill 10. The horizontal grid 14 is arranged in parallel with a plurality of horizontal grids 14 inclined upward and forward with a space 13 therebetween. Is formed with a hanging part 14b extending vertically downward. The hanging portion 14b is hung down to a position equivalent to or lower than the highest position of the horizontal lattice 14 one step below. In this example, the hanging portion 14b is hung down to a position equivalent to the highest position of the horizontal grating 14. Therefore, when the indoor unit is installed and installed on a wall surface or the like, the visibility is obstructed by the hanging portion 14b, and the suction grille in which the internal structure of the air conditioner located inside the suction opening 2 from the front is not visible. Further, since the hanging portion 14b is provided at the rear end of each horizontal lattice 14, the opening on the suction side of the suction grill 10 is not narrowed, so that the suction resistance does not increase. FIG. 3 shows another embodiment, in which a hanging portion 14 extending vertically downward as described above is provided at the rear end.
b is formed at the front end of the horizontal lattice 14 having a vertical portion 14b, and in this case, the hanging portion 14b
May hang down to a position equivalent to or lower than the upper end of the rising portion 14c of the horizontal lattice 14 one step below.
The degree of droop may be smaller than in the case of 4b alone. Also, since the inside is blocked by the hanging part 14b and the rising part 14c,
The rising portion 14c as in the case of blocking only by the rising portion 14c
And the opening on the suction side of the suction grill 10 is not narrowed. FIG. 4 shows, as still another embodiment, an example in which a hanging portion 14b is provided so as to be inclined rearward and downward from the rear end of each horizontal lattice 14. In this way, in addition to the same functions as those of the above-described embodiment, there is an advantage that the flow of the air sucked from the suction grille 10 becomes smooth. FIG. 5 shows still another embodiment in which an arc-shaped chamfer is applied to a corner portion 14e located at a continuous portion between the inclined portion 14d, the rising portion 14c, and the hanging portion 14b of each horizontal lattice, and the rising portion 14c and the hanging portion are provided. An example in which an arc-shaped chamfer is applied to an end portion 14f of the portion 14b is shown. If such a configuration is adopted, the area of the suction passage determined by the gap 13 between the suction grilles is enlarged, the ventilation resistance can be reduced, the fan blowing performance can be improved, and the operating efficiency of the air conditioner can be improved. Can be improved. In this example, arc-shaped chamfering is performed.
A similar effect can be achieved by a straight chamfer as shown in FIG. As shown in FIG. 2, in the embodiment having the hanging portion 14b, an arc-shaped or linear chamfer is applied to a corner portion 14e located at a continuous portion between the inclined portion 14d and the hanging portion 14b. In addition, even if only an arc-shaped or straight chamfer is applied to a corner 14e located at a continuous portion of the inclined portion 14d and the rising portion 14c and / or the hanging portion 14b, the ventilation resistance can be reduced and the fan blowing performance can be improved. Of course, it can be expected. In the above example, in addition to this, the arc-shaped or linear chamfering is performed at the end of the rising portion 14c and / or the hanging portion 14b, but at least the rising portion 14c and the chamfering are not necessarily performed as a whole. And / or spacing 1 at the end of the hanging portion 14b
If the portion facing the suction passage determined by 3 is chamfered in a straight or arc shape, the ventilation resistance can be reduced. The present invention is applicable not only to the suction grill of the wall-mounted air conditioner as described above, but also to the suction grill of a ceiling-suspended air conditioner.

[0006]

As described above in detail, in the suction grill of the air conditioner according to the present invention, the depth of each horizontal lattice is not increased or the interval is not reduced, and the suction grill on the suction side of the suction grill is not changed. Since the view can be effectively blocked without narrowing the opening, a suction grille can be provided that can effectively hide the internal structure of the air conditioner without increasing the ventilation resistance and suction resistance. It is.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an overall schematic configuration of an indoor unit of an air conditioner and an embodiment of a suction grille according to the present invention.

FIG. 2 is an enlarged sectional view of a main part of the suction grill shown in FIG. 1;

FIG. 3 is an enlarged sectional view showing another example of the suction grille according to the present invention.

FIG. 4 is an enlarged sectional view showing still another example of the suction grille according to the present invention.

FIG. 5 is an enlarged sectional view showing still another example of the suction grille according to the present invention.

FIG. 6 is an enlarged sectional view showing still another example of the suction grille according to the present invention.

FIG. 7 is an enlarged sectional view showing an example of a conventional suction grill.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Casing 2 ... Suction port 3 ... Blow-off port 4 ... Heat exchanger 5 ... Fan 6 ... Air filter 7 ... Drain pan 8 ... Horizontal blade 9 ... Vertical blade 10 ... Suction grill 11 ... Frame 12 ... Cover plate 13 ... Interval 14 ... horizontal lattice 14a ... rising part 14b ... hanging part 14c ... rising part 14d ... inclined part 14e ... corner part 14f ... end part

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shoichi Suzuki 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka F-term (reference) 3L051 BG06

Claims (5)

[Claims] 1. An air conditioner comprising: an air intake grill at an upper portion; an air outlet at a lower portion; a heat exchanger and a fan behind the intake grill; and air sucked from the intake grill and blown out of the air outlet through the heat exchanger. In the machine, a hanging portion is formed at a rear end portion of each of the horizontal grilles of the suction grill formed of a plurality of horizontal grilles inclined forward and upward, and the hanging portion is equivalent to the highest position of the horizontal grid one step below. Or the suction grill of an air conditioner characterized by hanging down to a low position. 2. A suction grill for an air conditioner according to claim 1, wherein a rising portion which rises upward is formed at a front end of each horizontal lattice. 3. A suction grille for an air conditioner according to claim 1, wherein the hanging portion at the rear end of each horizontal lattice is inclined rearward and downward. 4. An arc-shaped or straight chamfered corner portion located at a continuous portion between an inclined portion and a rising portion and / or a hanging portion of each horizontal lattice. An intake grill for an air conditioner according to any one of the above. 5. The air according to claim 4, wherein a straight or circular chamfer is formed at least at a portion facing the suction passage at a rising portion and / or an end portion of the hanging portion of each horizontal lattice. Harmonizer suction grille.