JP2000065391A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner, capable of hardly seeing the inside of the same in spite of a suction unit having the basic design of a horizontal lattice and capable of obtaining a high performance. SOLUTION: In an air conditioner equipped with a casing provided with an air passage, in which a filter, a heat exchanger and a ventilating fan are arrayed sequentially, a suction unit 7 is constituted of a plurality of horizontal lattices 100 and a plurality of vertical lattices 101, which are arrayed with substantially same pitches P1, P2 in a condition that the vertical lattices 101 are provided at the rear side of the horizontal lattices 100 so that top surfaces 101a, forming the tip end parts of the vertical lattices 101, are arranged at the rear side of top surfaces 100a, forming the tip end parts of the horizontal lattices 100, while the top surfaces 100a are colored with a shade brighter than that applied on the top surface 101a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having a filter, a heat exchanger, and a blower fan therein, and more particularly to an air conditioner capable of improving a design effect while reducing ventilation resistance. is there.

[0002]

2. Description of the Related Art In a conventional air conditioner, for example, in a wall-mounted air conditioner, a suction unit is provided on a front surface of a housing provided with a filter, a heat exchanger, and a blower fan. In general, a structure is used in which room air sucked from a suction portion on the upper surface is blown out from a blowing portion provided on a bottom surface. Also,
Since the suction portion provided on the front face is provided at the most prominent position in the installed state, the suction portion is constituted by a suction grill based on a horizontal rail so that the inside is difficult to see.

[0003] However, in the above-mentioned conventional example, if the area of the front suction portion is reduced, the degree of whiteness of the suction grill is increased and the appearance can be improved, but the amount of intake air is reduced by the reduced size of the front suction portion. The performance of cooling and heating deteriorates. on the other hand,
If the area of the front suction section is increased in order to improve the performance of cooling and heating, the inside becomes visible and the appearance is impaired.

In order to solve these problems, for example,
In an air conditioner provided with a suction part based on a horizontal rail at the front, the inside of the suction part is hardly seen from diagonally below by making each horizontal rail into a blind shape directed obliquely upward.

For example, in Japanese Patent Application Laid-Open No. H8-296867, a cover provided with a net having a plurality of small holes formed in a punching shape is provided on the front surface of the filter instead of the suction grille based on the horizontal rail. An air conditioner is disclosed. The cover has an opening ratio set to 65% with a substantially uniform opening, and the brightness of the color (white) of the cover is higher than the brightness of the color (dark gray) of the filter in 10 generally known brightness levels. It is described that by setting the brightness to five or more levels, it is possible to make the filter and the heat exchanger disposed behind the cover less visible, thereby improving the design and the performance.

[0006]

According to the first conventional example having the blind-shaped suction portion, it is necessary to make the pitch fine in order to make the interior difficult to see, so that a high aperture ratio is achieved. Is difficult. In addition, when the pitch is increased, the depth of the diagonal crosspiece that conceals the inside increases, and the size of the apparatus increases.

Also, a second type having a punching suction portion is provided.
According to the conventional example, although a large opening ratio can be obtained, there is an opinion that the horizontal crosspiece has a different color in the mainstream air conditioner and does not fit the interior of the room based on vertical and horizontal.

Accordingly, an object of the present invention is to provide an air conditioner in which the interior is difficult to see and high performance can be obtained even though the suction portion is based on a horizontal rail.

[0009]

In order to achieve one of the above objects, an air conditioner according to the present invention includes a housing having a ventilation passage in which a filter, a heat exchanger, and a blower fan are sequentially arranged. In the air conditioner provided, a plurality of horizontal rails and a plurality of vertical rails are arranged at substantially the same pitch in the suction portion, and the top surface forming the distal end of the horizontal rail is moved from the top surface forming the distal end of the vertical rail. The vertical crosspiece is provided behind the horizontal crosspiece so that the top surface that forms is located rearward, so that the horizontal crosspiece and the vertical crosspiece are stepped. Further, a color brighter than the color applied to the top surface of the vertical rail is applied to the top surface of the horizontal rail. Further, the suction unit includes an opening formed in the housing, and a suction grill attached to the opening, and a frame body attached to the opening grill in close contact with the opening; Is composed of the horizontal rail which divides the frame vertically, and the vertical rail which divides the inside of the frame left and right.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below in detail with reference to FIGS. Note that the same or similar parts, arrows, and the like are denoted by the same reference numerals, and redundant description will be omitted.

First, a schematic structure of an air conditioner according to the present embodiment will be described with reference to FIG. FIG. 1 is a perspective view showing the appearance of the air conditioner. In FIG. 1, an indoor unit of an air conditioner is indicated by reference numeral 1 and is connected to an outdoor unit (not shown) via a refrigerant pipe, a power supply connection line, a signal connection line, and the like (not shown). It is installed and mainly performs indoor cooling and heating. The exterior of the indoor unit 1 is a resin molded back cabinet 2
And a resin-molded decorative cover 3 provided on the front surface of the back cabinet 2, and a resin-molded front panel 4 provided on the front surface of the decorative cover 3.
Reference numeral 5 denotes a blowout portion which is arranged to be inclined forward of the bottom surface of the decorative cover 3 and includes two resin-molded wind direction plates 6a and 6b.

Reference numeral 7 denotes a first suction portion disposed below the front of the front panel 4, and the first suction portion 7 is provided with a suction grill 8 based on the horizontal rail 100. As will be described later in detail with reference to FIGS. 4 and 5, the suction grill 8 has a pitch P2 of the vertical bar 101 provided at the rear of the horizontal bar 100 at substantially the same pitch as the pitch P1 of the horizontal bar 100. In addition, the color of the top surface 100a of the tip of the horizontal bar 100 is made brighter than the color of the top surface 101a of the tip of the vertical bar 101, so that the strength of the suction grill 8 is improved. And a structure that makes it difficult to see the inside while obtaining a large aperture ratio.

On the upper surfaces of the decorative cover 3 and the back cabinet 2, a second suction portion 12 and a third suction portion 13 are formed. The front panel 4
In the center of the lower part of the display, a display section 14 for displaying the driving status and a light receiving section 15 for receiving an infrared operation signal from a separate remote controller are provided.
Is arranged.

As described above, in the air conditioner 1 according to the present embodiment, the first suction portion having a large opening ratio is provided at the center of the front surface where the suction portion is most effective for obtaining performance. 7, the overall size of the first suction portion 7 can be reduced as compared with the conventional suction portion having the same opening ratio at the same position as the conventional suction portion. The degree of natural whiteness increases, and the appearance can be improved.

In addition, in order to realize the large aperture ratio, in this embodiment, the suction grilles 8 constituting the first suction portion 7 are connected to the horizontal bar 100 having the same pitch and the rear side of the horizontal bar 100. By forming a stepped shape composed of the vertical rails 101, the thickness of each of the horizontal rails 100 and each of the vertical rails 101 can be reduced while maintaining strength, so that the aperture ratio can be increased. . In addition, the horizontal bar 100 makes it difficult to see the inside from obliquely below, and the vertical bars 101 make it difficult to see the inside from the left and right directions. Further, the horizontal grille 100 has a stepped shape projecting forward from the vertical rail 101, so that the suction grill 8 has a form based on the horizontal rail 100 with the horizontal rail 100 projecting to the front. Can be. Further, by setting the top surface 100a of the horizontal rail 100 to a lighter color than the top surface 101a of the vertical rail 101 located behind the horizontal rail 100, the observer's line of sight can be noticed by the horizontal rail 100, so The bar 100 can be emphasized and the inside can be made hard to see.

Hereinafter, the air conditioner according to the present embodiment will be described in more detail with reference to FIGS.

First, the exterior structure of the indoor unit 1 will be described in detail with reference to FIG. 2A and 2B are external views of the indoor unit 1, wherein FIG. 2A is a plan view, FIG.
(C) is a right side view, and (e) is a bottom view.

In FIG. 2, the indoor unit 1 has a width W1.
789 mm, height H1 285 mm, depth D1 18
A depth D1 of 3 mm has a horizontally long outer dimension smaller than the height H1. In the present embodiment, the height H1 is set in response to the fact that the small wall at the top of the window is small in order to secure a large window in recent residential environments, and the width W1 is set.
Is set so that it can be installed in a half-width of 900 mm (minimum distance between columns is 800 mm), and the depth D1 is set in consideration of the restrictions on the width W1 and the height H1 and the internal structure. According to the indoor unit 1 having this dimensional system, it can be installed in the installation environment where demand has been increasing in recent years, so that the diversity of installation can be improved.

(C) In the right side view shown in FIG. 1, the indoor unit 1 has a back cabinet 2 formed in a box shape, and the decorative cover 3 and the upper and lower surfaces of the front panel 4 are
When viewed from the side, it is formed by large curved surfaces 33, 34 which are narrowed forward in a substantially symmetrical manner, and furthermore, the curved surfaces 33, 34
Since the front surface of the front panel 4 formed between the front and rear surfaces 34 is formed by a large curved surface 35 slightly inclined rearward, the indoor unit 1 can be seen in a compact form adapted to the wall surface when installed on the wall surface. . Further, since the upper surface is formed by the curved surface 33, the second suction portion 12
Can be made less noticeable in the installed state, and the indoor air can be efficiently sucked in from the upper front. On the other hand, since the lower surface is formed by the curved surface 34, the blowout portion 5 can be inclined by making use of the "surface" that is easily adapted to the installation environment.

Further, the indoor unit 1 has a shape in which the front panel 4 has a uniform thickness when viewed from the side, and has a shape in which the front panel 4 goes up and down around the curved surfaces 33 and 34.
Further, a concave groove is formed so as to be continuous with the parting line of the component of the front panel 4 so that the thickness of the front panel 4 is continuous above and below the decorative panel 4. As a result, a “C” -shaped band portion 102 is formed on the outer periphery of the side surface from the front surface to the upper and lower surfaces. Further, the band 102
In addition to the above-mentioned structure, as shown in FIG. 8B, by being formed by a C-cut inclined surface, the fitting between the front panel 4 and the decorative cover 3 is improved, and the continuous curved large curved surface 33 is formed. , 34 to form an accent line,
The feeling of depth is reduced, and the feeling of compactness is further improved. In the drawing, reference numeral 37 denotes a recess for opening and closing the front panel 4 formed below both sides of the decorative cover 3.

In the front view shown in FIG. 2 (b), the indoor unit 1 is formed with the slanted band portions 102 at the four corners on the front, so that the external shape of the compact unit with improved internal real efficiency is rounded as a whole. Is formed. A first suction portion 7 is formed below the center of a large curved surface 35 formed on the front surface of the front panel 4 while leaving a large curved surface 35 around the periphery. In the present embodiment, the size of the first suction portion 7 is set such that the width W2 is 700 mm and the height H2 is 68 mm. As described above, in this embodiment, the shape of the first suction portion 7 arranged on the front surface is made larger than that of the conventional one having the same capacity, so that the whole of the first suction portion 7 is formed. Since the size can be reduced, the first
A wide flat surface can be formed around the suction portion 7.
Further, since the first suction portion 7 is reduced in size, the first suction portion 7 is formed in a large curved surface 35 forming the front surface.
Can be arranged with a good balance and a degree of freedom without discomfort. Thereby, the first suction portion 7 can be made inconspicuous and harmonized with the interior.

Further, the blowing section 5 and the first suction section 7
In the center between them, a display unit 14 in which an operation lamp, a dehumidification operation lamp, and a timer operation lamp are arranged side by side is provided, and a light receiving unit 15 is provided on one side of the front.

In the plan view shown in FIG. 3A, the second suction portion 12 formed on the upper surface of the decorative cover 3 and the third suction portion 13 formed on the upper surface of the back cabinet 2 are mainly composed of Horizontal rails 42 and reinforcing vertical rails 4
3 has a sparsely arranged grill shape and leaves a wide casing surface around the periphery, thereby obtaining a large aperture ratio and making it inconspicuous in an installed state. Also, the upper end of the front panel 4 has a concave notch 1 inside thereof, leaving an opening / closing hinge 103 for opening and closing the front panel 4 on both sides.
By forming the cover 04, the front panel 4 can be opened and closed, and the damage at the time when the center of the upper end portion contacts the housing at the time of opening and closing and the operation at the time of opening and closing can be improved. Furthermore, the space of the second suction part 12 can be secured by using the concave part of the notch 104 to expand the opening of the second suction part 12, so that the efficiency is further improved. Can be.

Further, since the second suction portion 12 is made inconspicuous by the curved surface 33, it is possible to reduce the deterioration of the design at the time of installation even if the opening ratio is large. Furthermore, in the present embodiment, the upper surfaces of the back cabinet 2 and the decorative cover 3 are firmly secured by leaving a wide casing surface between the second suction portion 12 and the third suction portion 13. At the same time, distortion due to molding can be reduced, the fitting between the back cabinet 2 and the decorative cover 3 can be improved, and the design can be improved.

Eight horizontal rails 42 are provided in the second suction part 12 and one horizontal rail 42 is provided in the third suction part 13 at substantially equal intervals. Furthermore, in the present embodiment, the indoor unit 1
Since the fan motor, the electrical component pox, and the like are provided on the right side of the second suction unit 12, the second suction unit 12 and the third suction unit 13
A partition plate 44 for concealing the internal structure is formed on the right side of. Further, the vertical crosspiece 43 is provided at a position deeper than the horizontal crosspiece 42, and nine openings 12a and 13a are formed so as to divide the openings 12a and 13a at equal intervals on the left and right sides. This makes it difficult for the vertical bar to be seen in the installed state, and makes it possible to obtain a large aperture ratio by making it strong.

(D) In the bottom view shown in FIG. 2, the blow-out portion 5 formed on the lower surface of the decorative cover 3 is arranged close to a division with the front panel 4. The two wind direction plates 6a and 6b have a band-like shape having a curved surface substantially the same as the large curved surface 34, and substantially cover the opening of the blowout portion 5 in a closed state, and are continuous with the bottom surface of the indoor unit 1. A large curved surface 34 is formed.

As described above, the appearance of the indoor unit 1 is a round shape in which the top and bottom surfaces are large, the both sides are narrowed forward through a small curved surface, and the front four corners are formed in a large round shape. Up, down, left, right, and symmetrical, and the blowout section 5, the first, second, and third suction sections 7, 12, 13, and the display section 14 disposed on the front are set with reference to the center. Are arranged symmetrically. As described above, the indoor unit 1 has the above-described appearance, so that the indoor unit 1 has a compact form that is easy to harmonize with the interior when installed on the wall surface.

Next, the internal structure will be described with reference to FIG. FIG. 3 is a longitudinal sectional view of the air conditioner 1. In FIG. 3, there is a once-through fan 1 inside the back cabinet 2.
Basic internal structures such as 6, heat exchanger 10, and drain pan 17 are attached. The once-through fan 16 has a rotating shaft at one end supported by a fan motor and a rotating shaft at the other end supported by a bearing, and is mounted below the back cabinet 2 in a horizontal posture.

The heat exchanger 10 includes three heat exchange units 10a,
10b, 10c, wherein the heat exchange unit 10a is disposed in a vertical position in front of the once-through fan 16, and the heat exchange units 10b, 10c are disposed in a chevron behind the upper end of the heat exchange unit 10a. Thus, the flow fan 16 is arranged so as to surround the front part and the upper part thereof. The drain plate 17 is disposed below the heat exchanger 10a, and the heat exchanger 10a
Is discharged outside the room through a drain nozzle (not shown). The drain plate 17 is provided in the back cabinet 2.
At the same time, a plurality of left and right wind direction plates 23 and up and down direction wind direction plates 6a and 6b are attached to the lower surface of the drain plate 17. Here, the wind direction plates 6a and 6b are provided with a stepping motor at one end, so that the wind direction angle can be automatically changed.

Now, the basic internal structure such as the once-through fan 16 mounted inside the back cabinet 2 is included in the indoor unit 1 by mounting the decorative cover 3. The decorative cover 3 has its front surface (left side in the drawing)
The air purifying filter 30 and the filter 11 are detachably mounted on the filter. The display unit 14 (not shown)
The light receiving unit 15 is attached to the decorative cover 3. Then, the front panel 4 has an upper end on the front surface of the decorative cover 3 and the opening / closing hinge 1 on the decorative cover 3.
The shaft is rotatably supported via a shaft 03, and the lower end thereof is removably mounted.

A drain plate 51 receiving the dew of the heat exchanger 10b is formed on the upper inner wall of the back cabinet 2. The water droplets collected in the drain plate 51 are collected in the drain plate 17 above the blowing unit 5 through a passage (not shown). The drain tray 51 has a lower inner wall 52 of the back cabinet 2 and a decorative cover 3 forming the blowout portion 5 and has an arc-shaped cross-sectional shape. A rear ventilation surface 53b that surrounds the fan 16 is formed. The lower surface of the drain plate 17 that receives the dew of the heat exchanger 10a forms a front ventilation surface 53a of the blowout portion 5, and the front ventilation surface 53a and the rear ventilation surface 53b form a ventilation passage 53. I do. Further, the horizontal wind direction plate 23 is connected to the drain plate 1.
7 and a lower end of the lower inner wall 52 of the back cabinet 2 so as to be rotatably supported. Note that the plurality of wind direction plates 23 are divided into a plurality of groups, and the respective groups are connected by connecting rods (not shown), so that the wind direction angle can be changed in conjunction with each group. The wind direction plates 6a and 6b are attached to support plates 83a and 83b formed on both sides of the lower surface of the drain plate 17 via rotating hinges (not shown). Further, the rear portions of the wind direction plates 6a and 6b are tapered so that the rear portions of the wind direction plates 6a and the front portions of the wind direction plates 6b are tapered so that the wind direction plates 6a and 6b can be partially overlapped and stored in a closed state. In the closed state, the outlet 5
Is concealed compactly with a curved surface that is familiar to the large curved surface 34, and the width (width) that allows the wind direction to be fully controlled in the open state
Can be obtained.

The heat exchanger 10 assembled in a chevron
b and 10c are provided with their vertices bent at a connection point Q substantially above the once-through fan 16. The connection point Q
Substantially coincides with the plane portion between the second suction portion 12 and the third suction portion 13, and furthermore, the second suction portion 12 and the heat exchanger 10
b, the space 56, the third suction section 13 and the heat exchanger 10c.
Is formed between the two. For this reason, the connection point Q having poor ventilation efficiency is located below the plane portion between the second suction portion 12 and the third suction portion 13, and the indoor air sucked from the second suction portion 12 is in the space 56. More uniform heat exchanger 1
0b, and the room air sucked from the third suction portion 13 can be uniformly supplied to the heat exchanger 10c by the space 57, so that the efficiency of the heat exchanger 10 can be improved. The first suction portion 7 disposed in front of the lower portion of the heat exchanger 10a is configured such that the suction grill 8 is inserted into an opening 58 formed in the front panel 4 by utilizing the elasticity of the resin and fixed. ing. Thereby, the strength is improved.

Next, the suction grille will be described in more detail with reference to FIGS. 4A and 4B are external views of the suction grille, in which FIG. 4A is a partial front view, FIG.
(C) is a partial bottom view. FIG. 5 is a longitudinal sectional view of the suction grill.

4 and 5, the suction grill 8 is
It is composed of a "R-shaped" frame 110, the horizontal bar 100 dividing the upper and lower portions of the frame 110 at equal intervals, and the vertical bar 101 dividing the inside of the frame 110 at right and left intervals. Is done. The suction grill 8 has a width W3 of 700 mm and a height H
3 is about 68 mm, depth D3 (D3a) is 9 mm,
The back side is flat and the front side is the upper depth D3a.
(9 mm) is larger than the lower depth D3b (7.3 mm), and the front surface is a circular arc inclined forward.

The suction grill 8 is fixed to the opening 58 of the front panel 4 around the frame 110 by utilizing the elasticity of the resin. Specifically, the frame 11
0, flat mounting convex ribs 111 for positioning on at least both sides of the bottom surface, fixing convex ribs 112 on the top and both sides,
113 are provided. The mounting convex rib 111 is provided so as to protrude downward from the other fixing convex ribs 112 and 113 so as to fit into a mounting concave portion (not shown) formed at a predetermined position of the opening 58. The fixing protrusion ribs 112 and 113 are formed so as to protrude rearward so as to slightly protrude upward. In the present embodiment, the mounting ribs 111 and the fixing ribs 112 are provided at the center and both sides so that the longitudinal direction of the suction grille 8 can be fixed. They may be provided at equal intervals. The suction grill 8 is made of PS (polyethylene), which is the same resin material as the main body, so that it can be crushed without being separated from the main body, so that it is excellent in recyclability.

According to this structure, first, the mounting convex rib 11 provided at the lower portion of the suction grill 8
1 is inserted into the mounting recess and positioned, and the upper portion of the suction grille 8 is inserted into the opening 58 so that the suction grill 8
Are the mounting ribs 111 and the fixing ribs 112,
13 and is fixed to the opening 58. Further, according to this structure, the frame 110 is fixed in close contact with the inner wall surface of the opening 58, and the strength is maintained by attaching the suction grill 8, so that the frame 11 is maintained.
Since the thickness 0 can be reduced, the area of the opening of the suction grill 8 can be increased as a result.

The horizontal rail 100 is formed so as to protrude forward from the top surface 100a of the frame 110. In this embodiment, the frame 110 is formed so as to project evenly by 3 mm, thereby making the frame 110 less noticeable. The top surface 101a of the vertical rail 101 has the horizontal rail 100a.
Is formed so as to be located rearward with a size of D5 from the top surface 100a of the cross bar 100, so that it is less noticeable than the horizontal rail 100 like the frame body 110. In this embodiment, the D5 is set at 4 mm and positioned behind the top surface 110a of the frame 110, so that a large number of vertical rails 10
One is less noticeable.

In this embodiment, the cross rail 10
By setting the pitch P1 of 0 and the pitch P2 of the vertical rails to be the same, the strength of the horizontal rails 10 is maintained while maintaining the strength.
Since the thickness of the vertical bar 101 and the vertical bars 101 can be reduced, the aperture ratio can be increased. In particular, in this embodiment, by making the wall thickness S2 of the vertical bar 101 smaller than the wall thickness S1 of the horizontal bar 100, a grid-like grill shape having substantially the same vertical and horizontal pitch is realized.

That is, according to the experimental verification of the present inventor, it has been found that when the pitch P2 of the vertical bar 101 is increased to form a horizontally long opening, the inside becomes more visible than a square opening. Therefore, in this embodiment, the thickness S2
Is made smaller and its number is increased to make the interior harder to see. And by making each opening a square grid-like grill, it is possible to further improve the internal visibility and design of the structure. According to the experimental verification of the inventor, the pitch P1 of the horizontal beam and the pitch P2 of the vertical beam are obtained.
Is the pitch where the inside is most inconspicuous around 7 mm.
It is difficult to see the inside when the installation range is from 8 mm to 8 mm. Therefore, in this embodiment, the pitches P1 and P2 are set to 7
It is set to 1.1 mm. The left and right and upper and lower openings of the suction grille 8 have different pitches in relation to the overall size. The thickness S1 of the cross rail 100 is about 2 mm, that is, 1.5 mm to 2.5 m.
The range of m is the best from the viewpoint of the aperture ratio, the overall balance, and the difficulty of viewing. Further, the thickness S2 of the vertical bar 101 is the same as the thickness S1.
In view of the above, the size is made smaller than this size.

In this embodiment, the vertical and horizontal pitches are the same, and the shape of the opening is made square. However, in order to further improve the aperture ratio, the pitch P2 of the vertical rail 101 is changed to the horizontal rail. If the pitch is within the range of twice the pitch P1 of 100, although the visibility and design of the inside are inferior, the opening ratio can be higher than that of a grill mainly composed of ordinary horizontal rails, and the inside can be made hard to see.

In this embodiment, the horizontal rail 100 is slightly tapered at the intersection G1 with the top surface 101a of the vertical rail 101, leaving the top surface 100a at the front end at the front end thereof. By making the shape similar to the cross-sectional shape of the “wing” having a tapered shape on the side, the resistance of the air entering from the top surface 100a can be reduced, so that noise and cooling / heating efficiency can be improved. In this embodiment, the depth dimension of the vertical bar 101 is made smaller than the protrusion amount of the horizontal bar 100 to reduce the air resistance. In this embodiment, the depth of the vertical bar 101 is set to 3 mm. However, the air resistance may be further reduced by further reducing the depth dimension.

In addition, the horizontal rail 100 is connected to the vertical rail 101
By making the shape of the unevenness projecting forward, the suction grill 8 can be connected to the horizontal rail 10 with the horizontal rail 100 protruding forward.
A form based on 0 can be used. This allows
It is possible to realize a horizontal slit shape in which the horizontal rail 100 is represented on the front surface while having a grid-like grill shape. Further, by setting the top surface 100a of the horizontal rail 100 to a lighter color than the top surface 101a of the vertical rail 101 adjacent to the rear side, the line of sight of the observer can be noticed by the horizontal rail 100.

That is, the present inventor has disclosed, for example, in
No. 6867, an experimental verification shows that a punching grill is formed on the cover, the opening ratio is set within a range of 70% to 50% with a substantially uniform opening, and the brightness of the color of the cover is adjusted by the filter. By setting the brightness to four or more levels based on a general 10-level brightness standard rather than the color brightness, the filter and the heat exchanger arranged behind the cover are made less visible, improving the design and performance. Have an invention that can.

However, according to the present invention, the entire punched cover is compared with the filter at the back of the opening to improve the appearance and hate. It has become an issue to give consumers a different impression compared to ordinary air conditioners.

The inventor of the present invention has further developed a grill whose interior is hard to see, clearly divides each opening vertically and horizontally, puts out a horizontal bar 100 to be conspicuous, and puts it on the top surface 1.
00a is brightened, and the vertical bar 101 adjacent to the top surface 100a is arranged one step backward to darken the top surface 101a. The brightness difference between the two top surfaces 100a and 101a is set to be brighter in four or more steps.

According to this structure, the observer can grasp the top surface 100a of the adjacent horizontal beam 100 and the top surface 1 of the vertical beam 101.
01a is compared and compared with the vertical beam 101 to the horizontal beam 100
Is strongly recognized, and it becomes difficult to recognize the filter 11 that is behind the opening and deviates from the comparison. Thereby, as a result, the filter 11 behind the opening becomes difficult to see, and the cross bar 100 is strongly recognized by the observer with respect to the object, so that the suction grill 8 whose interior is hard to see based on the cross bar 100 is realized. I have.

Returning to FIG. 4, since this type of wall-mounted air conditioner has a proportion in which the depth D1 is smaller than the height H1, the heat exchanger 10a is disposed in front of the once-through fan 16. Is located closest to the once-through fan 16 and is arranged in a longitudinal direction with respect to the once-through fan 16, so that the heat exchange portion 10a is a portion with the highest heat exchange efficiency. Therefore, it is efficient and efficient to provide a suction portion having a large aperture ratio on this front surface. However, on the other hand, since the front surface of the heat exchange unit 10a is at the most prominent position in the installed state, it is difficult to provide a suction portion having an opening ratio only in a portion where the inside can be seen. Therefore, in the conventional example, the efficiency is improved by providing a large suction portion having a small aperture ratio at this efficient position.

In the present embodiment, the first suction portion 7 having a large opening ratio can be provided in a small position at this efficient position, so that the degree of freedom of design can be increased without deteriorating the performance, and the interior can be harmonized. Can be provided.

[0049]

According to the present invention, it is possible to obtain a high performance by reducing the air resistance by using a suction portion having a high opening ratio, while the suction portion is based on the horizontal rail and the inside of which is hard to see.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of an air conditioner according to the present invention.

FIG. 2 is an external view of an air conditioner according to the present invention.

FIG. 3 is a sectional view of the air conditioner according to the present invention.

FIG. 4 is an external view of a suction grill of the air conditioner according to the present invention.

FIG. 5 is a sectional view taken along line AA of FIG. 4 according to one embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Indoor unit, 2 ... Back cabinet, 3 ... Makeup cover, 4 ... Front panel, 5 ... Blow-out part, 6a, 6b
... wind direction plate, 7 ... first suction part, 8 ... suction grill, 100
... horizontal beam, 100a ... top surface of horizontal beam, 101 ... vertical beam, 1
01a: Top surface 101 of vertical beam, P1: Pitch of horizontal beam,
P2: pitch of vertical rail, 12: second suction part, 13: third
Suction unit, 14 display unit, 15 light receiving unit, 10 heat exchanger, 11 filter, 16 flow-through fan, 111 frame.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor, Motoo Morimoto 800, Tomita, Ohira-cho, Shimotsuga-gun, Tochigi Pref. 3L051 BG06 BH01 BJ10 F-term in Hitachi, Ltd. Cooling Division

Claims (4)

[Claims] 1. An air conditioner having a casing having a ventilation path in which a filter, a heat exchanger, and a blower fan are arranged in order therein, wherein a suction portion communicating with the ventilation path is provided on a front surface of the casing. A plurality of horizontal rails provided at equal intervals in the suction part, and vertical rails provided at equal intervals are provided, wherein the vertical rails are provided at the same interval as the horizontal rails, and further, the tip of the vertical rails is the horizontal rail. An air conditioner, which is provided so as to be located rearward from a tip portion of a crosspiece. 2. An air conditioner provided with a housing having a ventilation path in which a filter, a heat exchanger, and a blower fan are arranged in order therein, wherein a suction portion communicating with the ventilation path is provided on a front surface of the housing. A plurality of horizontal rails and a plurality of vertical rails are arranged at substantially the same pitch in the suction portion, and the top surface forming the distal end of the vertical rail is rearward from the top surface forming the distal end of the horizontal rail. The vertical bar is provided behind the horizontal bar so that the top surface of the horizontal bar is colored brighter than the color applied to the top surface of the vertical bar. Harmony machine. 3. An air conditioner provided with a housing having a ventilation path in which a filter, a heat exchanger, and a blower fan are arranged in order therein, wherein a suction portion communicating with the ventilation path is provided on a front surface of the housing. The suction part is composed of a plurality of horizontal rails and a vertical rail combined in a lattice shape, and a distal end of the vertical rail is provided so as to be located behind the distal end of the horizontal rail, and a distal end of the horizontal rail. An air conditioner characterized in that a lighter color is applied to a top surface formed in a portion than a color applied to a top surface formed in a tip portion of the vertical rail. 4. The air conditioner according to claim 1, wherein the suction portion includes an opening formed in the housing, and a suction grill attached to the opening. The suction grill is characterized by comprising a frame attached in close contact with the opening, the horizontal bar dividing the frame up and down, and a vertical bar dividing the frame right and left. Air conditioner.