JP3059909B2 - 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 of the type separated into an outdoor unit and an indoor unit, and more particularly to an improvement in a shape of a suction port formed on an outer surface of the outdoor unit.

[0002]

2. Description of the Related Art In general, an outdoor unit has a compressor 3 and a heat exchanger (condenser) 4 built in a rectangular parallelepiped main body case 2 as shown in FIGS. Air is blown from the outside by the blower 5 provided on the rear surface 2e.
The air is taken in through a slit 12D for air suction which forms a suction port formed in the side face 2d, exchanges heat with the heat exchanger 4, and discharges the air after the heat exchange from the exhaust port 9 in the front face 2c.

The heat exchanger 4 uses not only the external air sucked from the back by the blower 5 but also the external air P sucked from the side in a cross (orthogonal) direction with the air for heat exchange. It is formed in an L-shape as viewed from the top so that the slit 12
D and the side slits 12D are arranged along the back surface 2e and the side surface 2d of the main body case 2.

In this case, the side surface 2 of the main body case 2
Conventionally, the slit 12D formed in d has almost all slits 12D of the same length, which are formed in rows in the front and rear direction and are vertically formed.

[0005]

In the case of such a suction port in which the slits 12D of the same length are simply arranged, the vertical ribs 16D formed between the slits correspond to the blower 5. Since it is located in the wind path, it has a great effect as a resistance member for the air P to be sucked in, so that the air suction from the side is deteriorated and the heat exchange rate of the entire heat exchanger is lowered. there were.

[0006] Further, the outdoor unit is installed outdoors, and in that case, it is desired that a product which is not so conspicuous in appearance, that is, a so-called thin product image is desired. From that point of view, in the case where the slits 12D having the same length are arranged, the side width of the outdoor unit is made to feel thicker, and the design is not emphasized in the thinness.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has improved a suction port formed on a side surface of an outdoor unit so as to reduce ventilation resistance to a heat exchanger. It is an object of the present invention to provide an air conditioner that can achieve the improvement in design and achieve the improvement in design.

[0008]

According to a first aspect of the present invention, at least one heat exchanger of equipment constituting a refrigeration cycle is mounted, and heat exchange between the heat exchanger and air is promoted. A cubic air conditioner equipped with a blower and having a suction port and an exhaust port on the side surface capable of sucking and discharging air by the blower, in a cubic air conditioner formed on one side face opposite to the exhaust port of the main body. 1 suction port, a second suction port formed on the other side surface of the main body in a direction crossing the first suction port, and an air passage formed between the suction port and the exhaust port. A heat exchanger disposed so as to face the first suction port and the second suction port, and a blower disposed on the exhaust port side in the air path. And the second suction port is constituted by a plurality of slits arranged in front and rear. In which longitudinal ribs between the slits of said slit is formed by changing the length and the length of the rear row of slits of the front row of slits to come rearward position out of the blower.

Further, in the invention of claim 2, the length of the slit in the front row is formed longer than the length of the slit in the rear row.

[0010]

According to the first aspect of the present invention, the air is blown into the indoor unit from two places by the blower, namely, a suction port facing the exhaust port of the main body and a suction port provided at a position orthogonal to the suction port.
Let the heat exchange with the heat exchanger. In this case, since the latter suction port is drawn in from the lateral direction as compared with the former suction port facing the blower, the air suction state is reduced. When the suction ports provided on the side surface orthogonal to the disadvantageous exhaust port are formed as two rows of front and rear slits for air suction, vertical ribs formed between the slits are used to blow air. The length is set and provided so as to be at a rearwardly shifted position not facing the device. For this reason, the rib does not obstruct the air passage through which air is sucked from the side, and the amount of air from the side is sufficiently ensured. That is, the slits are inadvertently provided so that the ribs do not enter into the air path and the air suction from the side having originally low suction force is not further reduced.

According to the second aspect of the invention, the length of the rear row of slits is shorter than that of the front row of slits. When such an inlet is formed by long and short slits, a good impression can be given in terms of design that makes the outdoor unit look thin.

[0012]

Embodiments of the present invention will be described below. Note that the same or equivalent parts as those of the conventional apparatus of FIGS. 4 and 5 are denoted by the same reference numerals.

Reference numeral 1 denotes an outdoor unit, in which a compressor 3 is housed in a rectangular parallelepiped main body case 2 formed of a thin steel plate while being positioned on one side, and is partitioned by a partition plate 1m. 3 is provided with a heat exchanger (condenser) 4 and a heat exchanger 4
Fan fan to blow air for heat exchange from outside
An air blower 5 having a cooling fan 7 rotated by a fan 6 is provided. Here, the compressor 3 and the heat exchanger 4 in the outdoor unit 1 are connected to a heat exchanger in an indoor unit (not shown) by a refrigerant pipe to form a refrigeration cycle.

The heat exchanger 4 has a structure in which a refrigerant pipe 15 is passed in a meandering manner through a plurality of elongated aluminum fins 14 stacked at a constant pitch. As shown in FIG. 3, the main suction port 8 having a large opening area formed on the back surface 2e of the main body case 2 by being curved into an L shape when viewed from above, and one side surface 2d of the main body case 2 The main body case 2 of the outdoor unit 1 is formed so as to face the sub suction ports 11 smaller than the suction port 8 in terms of the opening area formed in the main body 2.
It is provided standing inside. That is, the heat exchanger 4 has a wide opening area, and has a main heat exchange portion corresponding to the main suction port 8 having a large suction air volume and a sub heat exchange portion corresponding to a sub suction port having a small opening area. It has become.

Since the outdoor heat exchanger 4 is bent in an L-shape as described above, in the curved portion 4b that bends in the R-shape, the outside, which is the air inlet between the fins 14, opens widely.
Since the space between the fins 14 becomes narrow due to the clogging between the fins 14, the R-shaped curved portion 4b has a situation in which ventilation resistance is increased as a whole. 13A is a discharge port guard mounted on the exhaust port, and the discharge openings 13a are formed in a grid shape so as not to be touched by fingers so as not to be injured by touching the rotating cooling fan 7 of the blower 5. Have been.

Now, the cooling fan 7 is rotated to draw heat from the main suction port 8 on the rear face and to the exhaust port 9 on the front face 2c, and the heat exchange of the heat exchanger 4 is performed by a large amount of suction air flowing out. , The side airway 1 crossing the airway 10 in this direction
Air is sucked in even through 0A, and heat exchange by the air is performed in the sub heat exchange section of the heat exchanger 4.
At this time, in order to improve the heat exchange in the sub heat exchange unit, it is preferable to increase the amount of air sent to the sub heat exchange unit.

Therefore, in the auxiliary heat exchange section, the pitch between the fins 14 is maintained at the same pitch as that at the time of manufacture, and a larger amount of air is applied to the straight section 4a where the ventilation resistance is not increased more than the curved section 4b. As shown in FIG.
A long slit 12a having a length a is formed in d to correspond to the straight portion 4a. A large number of the slits 12a are formed so as to be arranged at regular intervals in the vertical direction. When the slit 12a is formed in this way,
The length of the slit 12a is substantially equal to the depth l of the cooling fan 7 of the blower 5, so that the amount of air blown by the blower 5 can be sufficient, and the heat exchange rate in the sub heat exchange section can be increased.

On the other hand, a slit 12b having a length shorter than the slit 12a having a length b is formed in the main body case 2 so as to obtain heat exchange therewith corresponding to the curved portion 4b.
On the side surface 2d. In this case, a large number of slits 12b are formed so as to be arranged at regular intervals in the vertical direction.

As described above, the long slit 12a is provided on the front row side.
By forming a short slit 12b on the back row side, the heat exchange action in the sub heat exchange portion of the heat exchanger 4 can be sufficiently exhibited, and the overall heat exchange rate can be increased.

By the way, as described above, in the present invention, in order to make the heat exchanger 4 suck air from the side, the main body casing is provided.
Front and rear two rows of slits 12a formed on one side surface 2d in the air path 10A in the direction crossing the air path 10
12b is formed so as to have a different length between the front row and the rear row. In this case, a vertical rib 16 formed between the front row slit 12a and the rear row slit 12b is formed by the cooling fan 7 of the blower 5. Position behind (denoted by two-dot chain line X)
And the length of the slits 12a in the front row and the length of the slits 12b in the rear row are set so as to satisfy the condition.

As a result, the slit 12a and the slit 12
The vertical rib 16 between the air passage b and the air passage 10A is removed from the region of the air passage 10A sucked by the air blower 5, and there is no resistance in the air passage 10A that obstructs ventilation, so that a sufficient air volume can be secured. The heat exchange capacity can be maximized.

That is, in the conventional case where the slits 12D of the same length are formed in two rows before and after,
The vertical ribs 16D between D and 12D have entered the air passage, which deteriorates the ventilation and lowers the heat exchange performance. However, this problem can be solved by the present invention.

If the slits formed on the side surface of the main body case 2 are long slits 12a in the front row and short slits 12b in the rear row, the long slits 12a in the front row are visually emphasized, and the rear slits are visually enhanced. Since the presence of 12b is reduced, the outdoor unit has a secondary effect that a thin image is appealed as a product and becomes inconspicuous, which helps to maintain the external appearance.

Further, in the embodiment, a thin image is obtained by an opening design in which the slits 12a in the front row are made longer and the slits 12b in the rear row are made shorter. Therefore, there is a cost of lowering the heat exchange rate in the sub heat exchange section, but contrary to the embodiment, the rear row of slits 12b is made longer and the front row of slits 12a is made shorter (length of slit 12b b> length of slit 12a). A)
Such an opening design may be used.

As described above, the outdoor unit 1 of the present invention is configured. Here, when the compressor 3 and the blower 5 are driven, the refrigerant circulates through the refrigeration cycle, and the indoor air is exchanged by the heat exchanger in the indoor unit. Is performed to perform cooling / heating. On the other hand, in the heat exchanger 4 of the outdoor unit, heat exchange is performed with external air taken in by the blower 5 to perform a condensation / evaporation action. . That is, the suction air from the main suction port 8 on the back side exchanges heat in the main heat exchange part, and the suction air from the side passes through the slits 12a and 12b to form the straight part 4a of the sub heat exchange part. And the bending portion 4b,
Heat exchange is sufficiently performed also in the sub heat exchange section.

[0026]

As described above, according to the present invention, heat is exchanged not only from the rear surface of the outdoor unit with the heat exchanger in the outdoor unit, but also with the air taken in by the blower from the side surface. In this case, when the side air inlet is constituted by two rows of front and rear slits, a vertical rib formed between the front row and the rear row of slits is disengaged from the cooling fan of the blower to obstruct ventilation. Since the slits are formed to have a length dimension so as to be located at a rearward position where nothing can be done, it is possible to obtain an outdoor unit capable of maximizing heat exchange.

[0027]

The length of the front row of slits is longer than that of the rear row of slits. The slit design, which differs in length between the front row and the rear row, has the effect of shifting the side width of the outdoor unit to a thinner one, improving the image of the product and protecting the outdoor unit from being noticeable in the outside world. Can have a good effect.

[Brief description of the drawings]

FIG. 1 is an external perspective view of an outdoor unit according to the present invention.

FIG. 2 is an external perspective view of the outdoor unit according to the present invention in which the inside is partially cut away.

FIG. 3 is a simplified cross-sectional plan view of the outdoor unit according to the present invention.

FIG. 4 is an external perspective view of a conventional outdoor unit.

FIG. 5 is an external perspective view of a conventional outdoor unit in which the inside is partially cut away.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outdoor unit 2 Main body case 4 Heat exchanger 8 Main suction port 9 Exhaust port 11 Sub suction port 5 Blower 12a, 12b Slit 16 Vertical rib

────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Yoshimi Okamoto 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Koichiro Seki 2-5-2 Keihanhondori, Moriguchi-shi, Osaka No. 5 Inside Sanyo Electric Co., Ltd. (56) References JP-A-2-128019 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 5/00

Claims (2)

(57) [Claims] (1) A small number of devices constituting a refrigeration cycle.
At least one heat exchanger is installed and this heat exchanger
Equipped with a blower to promote heat exchange between air and air
The side allows air intake and exhaust by this blower.
Cubic air conditioner with suction and exhaust ports
A first side formed on one side of the main body facing the exhaust port.
A suction port and the book in a direction crossing the first suction port;
Second suction ports formed on the other side of the body, and these suction ports
In the air passage formed between the first port and the exhaust port.
One is disposed so as to face the suction port and the second suction port.
Heat exchanger, and the exhaust port side in the air passage
Blower, and the second suction port is arranged in a plurality of front and rear
It is composed of slits arranged in a row,
The vertical ribs between the
So that the front row slit length and the back row slit length
An air conditioner characterized by being formed by changing 2. The slit in the front row has a slit length in the rear row.
Characterized by being formed longer than the length of
2. The air conditioner according to 1 .