JPS6212176Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an air conditioner, and mainly relates to improving the structure of an air filter.

Conventionally, this type of air filter for an air conditioner has been constructed as shown in FIG.

Figure 1 shows a cross-sectional view of a conventional air conditioner.
1 is the indoor unit, 3 is the suction grill, 1 is the air filter body, 2 is the indoor coil, 12 is the blower, 13 is the outlet, 10 is the drain pan, 14 is the panel, 15 is the filter part of the air filter body 1, and the handle The filter body 1 is constituted by the portion 6. In this case, the air that passes through the air filter from the suction grille 3 undergoes heat exchange with the indoor coil 4, and is blown out of the indoor unit 11 from the air outlet 13 by the blower 12. During cooling operation, water is collected in a drain pan 10 attached to the indoor coil 2 and drained outside the indoor unit 11.

In the conventional air conditioner configured as described above, if the air filter body becomes clogged with dust or the like, the air filter body comes into contact with the indoor coil due to wind pressure. Furthermore, if the air volume decreases due to a clogged filter body, or if cooling operation continues under low-load air conditions, the temperature of the indoor coil will drop and the drain will freeze. If the icing continues, ice will form on the surface of the air filter body that is close to or in contact with it, and when the operation is stopped, the ice will melt and travel through the filter, frame, handle, etc., and cause damage to the front surface of the indoor unit. There was a drawback that water droplets dripped onto the floor.

This invention aims to eliminate such drawbacks.

This invention will be explained in detail below with reference to the embodiments shown in FIGS. 3 and 4. Reference numeral 1 denotes an air filter body, which is inserted between a heat exchanger 2 and a suction grill 3 in the air conditioner body. This air filter main body 1 consists of a frame body 4 and a filter part 5, and has a handle part 6 inclined forward at a predetermined angle at the lower part. Reference numeral 7 denotes an elongated hole for collecting drain, which is bored in a handle portion 6 provided continuously at the lower part of the frame body 4. Reference numerals 8 and 9 are protrusions provided correspondingly to the front and back surfaces of the handle portion 6, and the rear side protrusion 9 is tilted rearward at a predetermined angle, and is brought into contact with the heat exchanger 2 surface to slightly tilt the filter body 1. It is made to protrude slightly from one surface of the filter body so that it is set with a certain gap. Reference numeral 10 denotes a drain dish disposed below the heat exchanger 2.

In the air filter for an air conditioner configured in this way, the indoor heat exchanger 2 may be damaged due to blockage of the filter body 1, contact with the heat exchanger 2, reduction in air volume, cooling operation under low load air conditions, etc.
The condensate that frosts and freezes and melts when the operation is stopped adheres to the surface of the filter body 1, flows downward, and flows back into the heat exchanger through the elongated hole 7 formed at the bottom along the protrusion 9 on the back side of the handle 6. 2, and is finally collected dropwise into the drain pan 10.

This device is constructed as described above, and the filter body is made up of a filter part and a frame body, the lower part of the frame is continuous with the handle part, a long hole is bored, and the front and back sides of the handle part are connected. Since the protrusion is provided to match the lower end of the elongated hole, even if the filter comes into contact with the heat exchanger due to filter clogging, etc., and the condensate adheres to the filter surface and flows down, the air conditioning will continue along the handle. This has practical effects such as ensuring that the water is collected into the drain pan without falling out of the machine body.

[Brief explanation of the drawing]

Figure 1 is a sectional view showing a conventional air conditioner, Figure 2
3 is a sectional view showing the main part of the air filter for an air conditioner of this invention, and FIG. 4 is an enlarged perspective view of the main part of FIG. 3.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A heat exchanger and a blower are arranged in the front and rear of the main body, and a suction grill and a blowout looper are arranged on the front of the main body, and there is a gap between the suction grill and the heat exchanger. In a device equipped with an air filter, the air filter main body is composed of a frame body and a filter part, and a handle part is formed by being continuous with the frame body and tilted forward at a predetermined angle, and the handle part is provided on the side of the filter part. An air filter for air conditioners, characterized by having elongated holes drilled in it. (2) Utility model registration claim 1, characterized in that an elongated hole is formed in the air filter handle, and a protrusion is formed on the lower end surface of the elongated hole to face the front and back surfaces of the handle. Air filter for air conditioners. (3) The feature is that the protrusion on the back side provided continuously on the lower end of the elongated hole is tilted rearward at a predetermined angle, and the filter body is made to protrude from the surface of the filter body to the extent that it floats slightly above the surface of the heat exchanger. An air filter for an air conditioner according to claim 1 or 2 of the utility model registration claim. (4) The air filter for an air conditioner according to claim 1, wherein the inclination angle of the handle portion is made to match the inclination angle of the suction grille.