JPS6060435A - Air filter device - Google Patents

Abstract

PURPOSE:To remove superfine dust and an odor from air by arranging and unifying a second filter, in which a charged gauze and an activated carbon gauze on which activated carbon is attached are unified by a frame, to the rear of a first filter, in which a gauze is fixed to a frame, and mounting the filters to one part of a ventilation flue. CONSTITUTION:An air filter device 6 is mounted detachably to the back of a suction port 5a from the outside. A first filter 7 is manufactured by fastening gauzes 7a, in which threads made of synthetic resin are woven, to a frame 7b made of synthetic resin, with which a grip section 7c is unified, and lattices 7d fitted on the inside by plural number through ultrasonic welding, etc. A second filter 8 is formed by fixing and unifying a charged gauze 9 and activated carbon gauzes 10, on which activated carbon is attached, to a frame 11 made of synthetic resin, the lowering of an air flow rate can be inhibited because the lower section of the first filter 7 is made smaller than the first filter 7 so as not to be caught and arranged to the rear, and there is no possibility of frosting on a heat exchanger under air cooling operation at a comparatively low temperature.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an air filter for an air conditioner, and particularly to an air filter device suitable for removing even minute dust and odors.

[Background of the invention]

In electrical equipment that has a blower, such as air conditioners, an air filter is installed in a part of the ventilation path to remove dust, with a mesh made of synthetic resin threads fixed to a synthetic resin frame by ultrasonic welding. . However, this air filter has the drawback that although it can remove large dust such as cotton dust that does not pass through the mesh, it cannot remove microscopic dust such as pollen that has a negative impact on the human body. Furthermore, if there is a source of odor in a room where an air conditioner or the like is installed, there is a drawback that the air is circulated by the blower and the room is filled with odor.

[Purpose of the invention]

The purpose of the present invention is to provide an air filter that cleans the air in a room by removing microscopic dust and even odors, creating a more comfortable and healthy living space. .

[Overview of Gukomei]

In the air filter of an air conditioner, which is attached externally to a part of the ventilation path, the first filter with a mesh fixed to the frame is placed on the nif side, and a charged grid and activated carbon are attached to the rear of it. This air filter device is made up of a second filter that is removably attached with an activated carbon mesh integrated in the upper part.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. 1 is a keytovignet that also serves as a casing for the blower, 2
3 is a blower, 3 is a heat exchanger, 4 is a condensation tray that receives condensed water from the heat exchanger, and is housed in the cabinet 1, and 5 is a decorative cover that covers all of these from the front. The port 5a and the discharge port 5b are integrated to form a ventilation path together with the cabinets 1 to 1, and the air flows through the blower 2 as shown by the arrow. 6 is an air filter device that is detachably attached to the back surface of the suction port 5a from the outside. The net 7a that had been made is fixed by ultrasonic welding or the like to a synthetic resin frame 7b that integrates the handle part 7C and a grid 7d that has a plurality of pieces inside.
A plurality of holes 7e are provided in the upper part 7b and the grid 7d.

Reference numeral 8 denotes a second filter, which is formed by fixing and integrating a charged net 9 charged with an electric charge and an activated carbon net 10 to which activated carbon is attached to a frame 11 made of synthetic resin, so that the lower part of the first filter 7 does not overlap. It is smaller and placed at the rear. Further, the frame 11 is provided with a plurality of flexible arrowhead-shaped fixing pins lla at positions that contact the holes 7e of the first filter 7, and the ends 11b+! It is bent toward the first filter 7 side. The charging net 9 is made of charged synthetic resin threads or fibers woven or felt. Activated carbon net [0] is a net made by weaving synthetic resin threads to which viscous or powdered activated carbon is attached. Here, in order to attach the second filter 8 to the first filter 7, the fixing pin Ila of the second filter 8 is simply inserted into the hole 7e of the first filter 7, and the two filters can be easily fixed and integrated. Furthermore, the attachment of the fixed and integrated filter device 6 to the decorative cover 5 is as follows.
The first filter 7 is in front of the air flow (arrow),
Insert so that the second filter 8 is at the rear.

According to the air filter device as described above, minute dust particles that have passed through the mesh 7a of the first filter 7 are also attracted to the charged mesh 9 of the second filter 8, so that they can be removed from the air. Furthermore, since large dust particles are removed by the first filter 7, the deterioration of the dust removal effect and the increase in ventilation resistance due to clogging of the charging net 9 are suppressed, and the effect can be maintained for a long period of time. Furthermore, since odors in the air are absorbed by the activated carbon net 1o, the air in the room is purified, creating a more comfortable and healthy living space. Furthermore, since the second filter 8 is smaller than the first filter 7 and does not hang below the first filter 7, the ventilation resistance is small and a decrease in air volume can be suppressed. Therefore, there is no risk of frost forming on the heat exchange air 3 during cooling operation at relatively low temperatures due to a decrease in air volume. In addition, the second filter 8, whose effectiveness has weakened due to long-term use, can be easily attached and detached by removing the fixing pin lla from the hole 7e, so that it does not require much effort to handle. Further, the end portion 11b of the frame 11 of the second filter 8
Since the frame 11 is bent toward the first filter 7 side, there is no fear that the frame 11 will be caught when attaching and detaching the air filter device 6 to the decorative cover 5, resulting in good operability. .

〔Effect of the invention〕

According to the present invention, a first filter having a mesh fixed to a frame is placed in the front, and a second filter in which a charged net and an activated carbon net to which activated carbon is attached are integrated by a frame is placed in the rear and integrated to provide ventilation. By attaching it to a part of the road, it is possible to remove minute dust and odors from the air, purifying the air in the room and creating a more comfortable and healthy living space, and the effect is long-lasting. Can be maintained for a period of time. Furthermore, since the second filter is made smaller than the first filter, a decrease in air volume can be suppressed, and there is no risk of frost formation on the heat exchanger during cooling operation at relatively low temperatures. Furthermore, since the second filter can be easily attached and detached by attaching and detaching the fixing pin, it does not require much effort in handling. In addition, the end of the frame of the second filter
Since it is bent toward the filter side, there is no need to refer to the filter device ξ, resulting in good operability.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of an air conditioner equipped with an air filter device of the present invention, FIG. 2 is a perspective view of the air filter device of the present invention, FIG. 3 is a longitudinal cross-sectional view of FIG. 2, and FIG. is an enlarged view of the main part of FIG. 3. 1. Capacitor, 2. Blower, 3. Heat exchanger. 4-Dew pan, 5. Decorative cover, 6..'-Filter device, 7.. 1st filter, 7a.Net, 7b.
・Frame, 7e ・Hole, 8...Second filter, 9 ・Charging network, ]0...Activated carbon network, ]1-Frame, 1121 ・Fixing pin O Fig. 1

Claims (1)

[Claims] 1. In an air filter of an air conditioner installed externally in a part of the air ventilation path,
An air filter characterized in that a second filter is removably attached to the filter, which is a frame that integrates a charged grid with an electrical charge and an activated carbon mesh coated with 411 activated carbon.
< Place. 2. Place the second filter behind the first filter,
2. The air filter device according to claim 1, wherein the second filter is made smaller than the first filter so that a part of the first filter is not covered. 3. The air filter device according to claim 1, wherein the first filter is provided with a plurality of holes, and the second filter is provided with a plurality of fixing pins at positions where they abut each other. 4. The air filter device according to claim 3, wherein the end of the second filter is bent toward the first filter.