JP4699230B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner, and more particularly to a structure of a drain drainage channel provided inside an indoor unit.

  An air conditioner is an apparatus that generally performs air conditioning by heating or cooling indoor air using a refrigerant. FIG. 3 is a schematic diagram showing the overall configuration of a home air conditioner. In the figure, reference numeral 1 is an indoor unit attached indoors, and reference numeral 2 is an outdoor unit installed outside the room. The indoor unit 1 and the outdoor unit 2 realize air conditioning by circulating a refrigerant through the connection pipe 3.

The figure which abbreviate | omitted the front panel of the indoor unit 1 was shown in FIG. The indoor unit 1 includes a heat exchanger 5 inside. During the cooling operation, the indoor air is cooled by the low-temperature refrigerant flowing inside the heat exchanger 5, and air conditioning of the indoor air is performed. Since moisture contained in the room air condenses on the surface of the heat exchanger 5, a drain drain passage for draining the condensed water to the outside is provided at one end A of the heat exchanger 5.
FIG. 5 shows an enlarged view of the drain drainage channel 10. Condensed water dropped from the heat exchanger 5 (not shown) is guided by the drain guide 11 as indicated by an arrow and falls on the drain guide 12. Furthermore, it falls on the drain pan 13 and is led out of the room by a drain pipe (not shown) and drained. The casing of the indoor unit 1 that forms the drain drainage channel 10 is generally a resin molded product, and is molded by a molding die that combines a plurality of dies. A mold parting line 15, which is a joining portion between the mold and the mold, is located along the extended line of the drain guide 11.
JP 2003-254552 A

  In the indoor unit of the air conditioner configured as described above, burrs are easily stretched on the casing at the position of the mold dividing line 15 during resin molding. In some cases, the liquid does not fall on the drain guide 12 and overflows outside the predetermined area.

  This invention is made | formed in view of the said situation, and it aims at providing the air conditioning apparatus which can implement drainage | drain drainage reliably.

The invention according to claim 1 is an air conditioner including an indoor unit that exchanges heat with indoor air. The indoor unit is formed in a casing of a resin molded product that is formed by combining a plurality of molds. The drain drainage channel includes a first guide portion that guides the drain, and a second guide portion that receives the drain dropped from the first guide portion and guides it downstream. A protrusion projecting substantially vertically downward is provided at a downstream end of the first guide portion, and a dividing line generated in a combination portion of the molds of the resin molded product is provided from the tip of the projection to the second guide. It extends to the part side.

  According to the present invention, since the protrusion is provided on the first guide portion, the condensed water is guided downward by the protrusion, and the fall of the condensed water is promoted. Thereby, it is suppressed that condensed water flows along a parting line.

According to a second aspect of the present invention, in the air conditioner including an indoor unit that exchanges heat with indoor air, the indoor unit is formed in a casing of a resin molded product formed by combining a plurality of molds. The drain drainage channel includes a first guide portion that guides the drain, and a second guide portion that receives the drain dropped from the first guide portion and guides it downstream. And a parting line generated in a combination part of the molds of the resin molded product extends vertically below the tip of the first guide part.

  According to the present invention, since the parting line is located below the downstream end of the first guide part, the condensed water guided by the first guide part falls at the downstream end of the first guide part, It becomes easy to fall to the 2nd guide part.

According to a third aspect of the present invention, in the air conditioner including an indoor unit that exchanges heat with indoor air, the indoor unit is formed in a casing of a resin molded product formed by combining a plurality of molds. The drain drainage channel includes a first guide portion that guides the drain, and a second guide portion that receives the drain dropped from the first guide portion and guides it downstream. A mold dividing line generated in a mold combination part of the resin molded product extends from the first guide part side to the second guide part side, and the second guide part includes the first guide part. And a protruding wall extending upward from the parting line.

  According to the present invention, since the projecting wall is provided in the second guide portion, the condensate is blocked by the projecting wall even when the condensed water flows along the parting line, so that it is not in a predetermined region. Overflow is prevented.

  According to the present invention, since it is possible to prevent the condensed water from overflowing along the parting line, drainage of drainage can be performed reliably.

Next, an embodiment of an air conditioner according to the present invention will be described. In addition, the whole structure is the same as that of the said conventional air conditioning apparatus, and description is abbreviate | omitted. In the following, only the features characteristic of the present invention will be described.
FIG. 1 is an enlarged perspective view showing a drain drainage channel characteristic of the present embodiment, and FIG. 2 is a side view of the drain drainage channel. In the drain drainage channel 20 provided in the air conditioner according to the present embodiment, the condensed water that has fallen from a heat exchanger (not shown) is guided to a drain guide (first guide portion) 21 to be drain guide (second guide). Guide part) 22 falls. Further, it is guided by the drain guide 22 and falls onto a drain pan on the downstream side (see reference numeral 13 in FIG. 5), and is guided to the outside by a drain pipe (not shown) and drained.

As described above, the drain drainage channel 20 is constituted by a casing which is a resin molded product, and a mold dividing line 25 which is a combination portion of a plurality of molds and molds is provided from the drain guide 21 side to the drain guide 22. Extends to the side.
The drain guide 21 has an inclined surface that descends toward the downstream drain guide 22, and a projection 21 b that protrudes substantially vertically downward is provided at the downstream end 21 a. The parting line 25 is positioned below the downstream end 21a of the drain guide 22 and extends from the lower end of the projection 21b toward the drain guide 22 on the downstream side.
The drain guide 22 is provided with a protruding wall 23 that extends above the parting line 25 at a position facing the drain guide 21. The protruding wall 23 includes an inclined surface inclined toward the downstream side of the drain guide 21 and the drain guide 22. The parting line 25 is located at the lower base end.

  In the air conditioning apparatus of the present embodiment configured as described above, indoor air is cooled by a low-temperature refrigerant flowing inside a heat exchanger (not shown) during cooling operation, and air conditioning of the room air is performed. Moisture contained in the room air condenses on the surface of the heat exchanger and falls onto the drain guide 21. Due to the inclination of the drain guide 21, the condensed water flows toward the downstream drain guide 22. Since the protrusion 21b is provided at the downstream end of the drain guide 21, the condensed water is guided by the protrusion 21b and falls downward from the downstream end of the drain guide 21, and is received by the drain guide 22 positioned below the protrusion 21b. Next, it flows on the drain guide 22 to the downstream side, falls on a drain pan (not shown), is led to the outside by a drain pipe (not shown), and is drained.

As described above, according to the air conditioner of the present embodiment, the mold parting line 25 is positioned below the downstream end 21a of the drain guide 21, so that even if the parting line 25 has a burr, The condensed water guided by the guide 21 is suppressed from flowing along the mold parting line 25, and easily falls on the drain guide 22.
Moreover, by providing the protrusion 21b, the condensed water is guided downward by the protrusion 21b, and the fall of the condensed water is further promoted.
Furthermore, by providing the protruding wall 23, even when the condensed water flows along the parting line 25, the condensed water is blocked by the protruding wall 23, and overflows to a region other than the drain drainage channel 20. Is prevented.

It is the perspective view which expanded and showed the drain drainage channel with which the air conditioning apparatus shown as one Embodiment of this invention is provided. It is a side view of the drain drainage channel. It is the schematic which showed the whole structure of the general air conditioning apparatus. It is the indoor unit of the same air conditioner, and is a perspective view showing the front panel omitted. It is an enlarged perspective view of the drain drainage channel provided in the indoor unit.

Explanation of symbols

20 Drain drainage channel 21 Drain guide (first guide)
22 Drain guide (second guide)
25 type dividing line 21a downstream end 21b protrusion 23 protruding wall

Claims (3)

In an air conditioner equipped with an indoor unit that exchanges heat with indoor air,
The indoor unit includes a drain drainage channel formed in a casing of a resin molded product formed by combining a plurality of molds, the drain drainage channel includes a first guide portion that guides the drain, and the drainage channel A second guide part that receives the drain that has fallen from the first guide part and guides the drain downstream;
The downstream end of the first guide part is provided with a protrusion that protrudes substantially vertically downward,
An air conditioner characterized in that a parting line generated in a mold combination part of the resin molded product extends from the tip of the protrusion to the second guide part side. In an air conditioner equipped with an indoor unit that exchanges heat with indoor air,
The indoor unit includes a drain drainage channel formed in a casing of a resin molded product formed by combining a plurality of molds, the drain drainage channel includes a first guide portion that guides the drain, and the drainage channel A second guide part that receives the drain that has fallen from the first guide part and guides the drain downstream;
2. An air conditioner characterized in that a parting line generated in a mold combination part of the resin molded product extends vertically below a tip end of the first guide part. In an air conditioner equipped with an indoor unit that exchanges heat with indoor air,
The indoor unit includes a drain drainage channel formed in a casing of a resin molded product formed by combining a plurality of molds, the drain drainage channel includes a first guide portion that guides the drain, and the drainage channel A second guide part that receives the drain that has fallen from the first guide part and guides the drain downstream;
A dividing line generated in the mold combination part of the resin molded product extends from the first guide part side to the second guide part side,
The air conditioner characterized in that the second guide part is provided with a protruding wall extending above the parting line at a position facing the first guide part.

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