JPH10281547A - Indoor device of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shield a clearance between a heat exchanger and a cabinet by a method wherein a plurality of thin ribs integrally molded with a cabinet at an upper part of this cabinet are formed into such a shape as contacts the upper end of the heat exchanger. SOLUTION: A plurality of thin ribs 11 integrally molded with a cabinet 10 are formed at an upper part of the cabinet 10 of die structure which may easily be molded by polypropylene resin. End surfaces of these ribs 11 are contacted with a heat exchanger 20 and each of ribs 11 is deformed along the shape of the heat exchanger 20 at its contacting part. In addition, each of the ribs 11 is set to have a suitable length and a pitch in compliance with an arrangement and a shape of the heat exchanger 20. With such an arrangement as above, since a clearance between the heat exchanger 20 and the cabinet 10 can be shielded, it is possible to prevent wet air not passing through the heat exchanger 20 from being contacted with a once-through fan 50 at the upper part of the cabinet 10 during cooling operation, the air from being changed into dew formation and further water droplets from being dispersed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an indoor unit for a wall-mounted air conditioner.

[0002]

2. Description of the Related Art This type of air conditioner is, for example,
As shown in -125118, the upper part of the cabinet is in direct contact with the heat exchanger. The plate thickness of the cabinet in contact with the heat exchanger generally has a sufficient thickness so as not to be deformed even when the heat exchanger is in contact with the cabinet, or a wall is formed so as to be in contact with the heat exchanger. In this case, if the heat exchanger is warped or if the fixing of the heat exchanger is uneven due to assembly, a gap will be created between the heat exchanger and the cabinet, and the cooling or dehumidifying operation will cause a gap from the inlet on the front panel. Part of the humid air that has flowed in does not pass through the heat exchanger but flows around from the gap and flows in.The dew comes in contact with the cross-flow fan cooled by the air that has passed through the heat exchanger, and the condensed water droplets are discharged. There was a problem of flying from the exit.

[0003]

In order to solve the above problem, a heat insulating material may be provided between the upper part of the cabinet and the heat exchanger as shown in FIG. In this case, the adhesion between the heat exchanger and the cabinet is good, but there is a problem that the number of manufacturing steps increases and the price increases.

An object of the present invention is to provide a relatively inexpensive shield for the gap between the heat exchanger and the cabinet even when the heat exchanger is warped or the fixing of the heat exchanger is uneven during assembly, and the upper part of the cabinet during cooling operation. Another object of the present invention is to provide an air conditioner indoor unit that prevents humid air that does not pass through a heat exchanger from coming into contact with a once-through fan to form dew and water droplets from being scattered from a discharge port.

[0005]

According to the present invention, a plurality of fine ribs formed integrally with the cabinet have a shape in contact with the upper end of the heat exchanger. Features.

[0006]

1 and 2 show an embodiment of the present invention. FIG. 1 shows an indoor unit of an air conditioner, which is a cabinet 10 holding each component and also having a casing function.
And an upper surface suction port 3 for allowing indoor air to flow into the indoor unit.
1, a front panel 30 having a front suction port 32, a heat exchanger 20 functioning as an evaporator during cooling operation and as a condenser during heating, and increasing the performance of the heat exchanger to allow indoor air to flow into the indoor unit to exchange heat. It consists of a once-through fan for discharging the air into the room. At the upper part of the cabinet 10, there are a plurality of fine ribs 11 formed integrally with the cabinet, and the end faces of all the ribs 11 are in contact with the heat exchanger 20. Since the rib 11 is very thin, it deforms along the shape of the heat exchanger at a portion in contact with the heat exchanger 20. The cabinet 10 is made of a polypropylene resin and has a mold structure in which fine ribs are easily formed, thereby facilitating the formation of the ribs 11. The plurality of ribs 11 have appropriate lengths and pitches according to the arrangement and shape of the heat exchanger.

During the cooling operation, the air in the room, which is relatively warm and moist, flows into the indoor unit through the upper suction port 31 and the front suction port 32, is cooled and dehumidified by the heat exchanger 20, and is discharged from the discharge port 40 by the through-flow fan 50. Is done. At this time,
In particular, the air flowing from the upper surface suction port 31 is
The upper part of the cabinet 1 is formed by a plurality of thin ribs 11.
Since it is shielded as 0, it can be prevented from leaking out of such a part by leaving the ventilation path, and all can pass through the heat exchanger 20. The rib 11 is formed integrally with the cabinet, and is formed of a plurality of thin films to improve the shielding property with respect to the heat exchanger. Since the ribs 11 are very thin, even if the heat exchanger is warped in production or the fixing of the heat exchanger is uneven in assembly, the ribs 11 can easily adhere to the shape of the heat exchanger and can prevent air leakage. . In addition, the use of a plurality of ribs further enhances the shielding property.

Conventionally, the air that has flowed in from the upper suction port partially exits the ventilation path, so that the moist air comes into contact with the cool-through fan cooled by the air that has passed through the heat exchanger and condenses, and scatters from the discharge port. However, in the present embodiment, all of the inflowing air passes through the heat exchanger without deviating from the ventilation path, so that it is possible to prevent the dew water from scattering from the discharge port.

In the structure in which the heat exchanger and the cabinet 10 are shielded by a heat insulating material as shown in FIG. 3, the adhesion between the heat exchanger 20 and the cabinet 10 is good, but the number of manufacturing steps is increased and the cost is reduced. However, in this embodiment, since the plurality of ribs 11 for the purpose of shielding are formed integrally with the cabinet 10, there are no additional parts, and the manufacturing process does not change. Can be prevented from rising.

[0010]

According to the present invention, the gap between the heat exchanger and the cabinet is relatively inexpensive because a plurality of fine ribs are provided at the top of the cabinet of the indoor unit to shield the gap between the heat exchanger and the cabinet. Can be prevented, and the air that has partially escaped from the ventilation path can be prevented from coming into contact with the once-through fan and condensing and scattered from the discharge port.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating an upper portion of the indoor unit of the air conditioner illustrated in FIG.

FIG. 3 shows a conventional air conditioner indoor unit.

[Explanation of symbols]

10: Cabinet, 11: Fine ribs formed integrally with the cabinet, 20: Heat exchanger, 30: Front panel, 31: Top suction port, 32: Front suction port, 40: Discharge port, 50: Cross-flow fan.

Claims (1)

[Claims] 1. A cabinet which also has a function of a casing to which each part is attached, a front panel having an upper surface suction port and a front surface suction port, a heat exchanger functioning as an evaporator during cooling operation and as a condenser during heating, and In an air conditioner having a once-through fan for improving the performance of a heat exchanger and discharging heat-exchanged air into a room, a plurality of fine ribs integrally formed with the cabinet are provided at an upper portion of the cabinet at an upper end of the heat exchanger. An indoor unit for an air conditioner, wherein the indoor unit has a shape in contact with a part.