JP3016020B1 - Air filter for air conditioning - Google Patents

Abstract

To provide an air filter for air conditioning, which can wash and replace only a filter medium to save resources, reduce waste, and reduce costs. SOLUTION: A filter main body 2 in which a filter medium 10 is fitted into a filter frame 9 can be taken in and out of a main body box 1 having an air inlet 3 on one side and an air outlet 4 on the opposite side. Installing. The filter frame 9 removably butt-joins the left and right divided frames 91 and 92 to hold the filter medium 10 detachably.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air filter used for an air conditioner installed in a building or the like.

[0002]

2. Description of the Related Art Conventionally, this type of air-conditioning air filter has a main body box made of wooden plywood having an air inlet on one side and an air outlet on the other side, and the air inside the main body box is formed. The filter medium is arranged between the inflow port and the air outflow port in a zigzag manner and attached with an adhesive.

[0003]

However, in the above-mentioned air filter, the main body box and the filter medium are integrally joined by an adhesive and cannot be separated. Even if both can be separated, the filter medium is washed. Since it is not suitable for use, it cannot be reused and has been disposed of only after one use, which not only causes an increase in the generation of trash but also is extremely uneconomical.

Accordingly, an object of the present invention is to provide an air-conditioning air filter capable of saving resources, reducing dust, and reducing costs by enabling washing and replacement of only a filter body formed by combining a filter medium and a filter frame. It is in. Another object of the present invention is to provide an air-conditioning air filter that can simplify the cleaning and replacement of only the filter medium and the recycling of the filter frame.

[0005]

Means for Solving the Problems] conditioned air filter for the present invention, the air inlet on the front side, the main box formed by each opening to air outlet on the rear side, air inlet in the main box in between the air outlet,
The main body box 1 is arranged in a zigzag
And a filter body that will be out capable mounted from the front side, the filter body, the filter frame formed by butt-coupled split frame of the left and right plastic separable, and by fitting the filter medium , each divided frame of the left and right are formed in a rectangular frame shape having an upper and lower frame and front and rear frame, the filter medium is also of a that are capable sandwiched removably between the left and right divided frames with each other.

Furthermore, the present invention provides an engaging projection projecting from the integrally to one that is divided frame among the right and left, respectively and releasably engageable with the engaging holes drilled in the other, the upper Kihidari right On each inner surface of each of the divided frames, a filter material holding projection that interlocks between the peaks of the filter material that is folded in a bellows shape and that prevents the filter material from moving in the expansion and contraction direction is integrally provided. The book above
In the air outlet of the body box,
Cut off the frame from being received via the sealing material to prevent air leakage
The vertical rail at the back of the surface groove is arranged at a predetermined interval in the left and right direction.
It is fixed in the air inlet of the main body box 1,
Seal material to prevent air leakage on the front frame of the filter body
The front vertical rail with a cross section that is pressed through
A crossbar connected to the right at predetermined intervals
The holding frame provided can be fitted freely.

[0007]

[Action] Since the filter body are mounted so as to be out relative to the body box, it can be reused, such as cleaning washed with rows of Ukoto remove only a simple filter body.

[0008] By separating the left and right divided frames of the filter frame, the filter frame and the filter medium can be separated, so that only the filter medium can be washed or replaced.

The left and right divided frames are kept in abutting condition by the engagement of the engagement projections and the engagement holes, and the filter material holding projections can restrict the movement of the filter medium in the filter frame. In addition, according to the joining and fastening means by the engaging projections, the engaging holes and the filter medium holding projections, there are no joining members or fastening members such as screws or adhesives made of a different material different from the material of the filter frame. Since it is not necessary to use the filter frame, it is possible to omit the operation of separating the foreign members when the filter frame whose service life has passed is collected and recycled, and the recycling can be easily performed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an air-conditioning air filter according to the present invention will be described with reference to the drawings. In FIG. 1, the air-conditioning air filter includes a main body box 1 and a plurality of filter main bodies 2. Body box 1
Is an air inlet 3 on the front side and an air outlet 4 on the back side.
Are respectively opened, and the top side is the top plate 5 and the bottom side is the bottom plate 6
The left and right side surfaces are closed with left and right side plates 7 and 8, respectively. For the top plate 5, the bottom plate 6, and the left and right side plates 7, 8, a metal plate such as a steel plate, a synthetic resin molded product, or wood can be used.

The filter body 2 is formed by fitting a filter medium 10 into a rectangular filter frame 9 as shown in FIGS. The filter frame 9 is formed by joining left and right plastic divided frames 91 and 92 so as to be separable, and each of the divided frames 91 and 92 is an upper and lower frame 9a, 9 having an L-shaped cross section.
b and a front and rear frame 9c, 9d. As the material of the filter medium 10, synthetic fibers are used, and among the synthetic fibers, polyolefin fibers such as polyethylene fibers and polypropylene fibers, which are particularly resistant to washing and are easy to wash off attached dust particles, are used. The polyolefin-based fiber is formed into a nonwoven fabric, a knitted fabric, a woven fabric, or the like, and then folded in a bellows shape to form the filter frame 9.
Are detachably held between the left and right divided frames 91, 92. By folding the filter medium 10 in a bellows shape, the contact area of air to the filter medium 10 of a certain length and width can be increased as much as possible, so that the airflow resistance is reduced.

As shown in FIGS. 1 and 4, the filter main body 2 is mounted in the main body box 1 so as to be disposed in a zigzag manner in the left-right direction from the front side of the main body box 1. The reason why the filter bodies 2 are arranged in a zigzag shape is to increase the contact area of air to a certain number of filter bodies 2 as much as possible to reduce the airflow resistance and increase the amount of air filtration.

As shown in FIGS. 2 and 3, slide projections 11 having a triangular cross section are arranged and fixed on the inner surface of the top plate 5 and the inner surface of the bottom plate 6 of the main body box 1, respectively. Upper frame 9a of filter frame 9 of 2
And a groove-shaped member 13 having a slide groove 12 having a V-shaped cross section which is slidably fitted to the slide protrusion 11 in the lower frame 9b.
Is provided. The channel member 13 is made of a plastic material so that the width of the slide groove 12 can be freely expanded and contracted.
And can be slid while maintaining a state of tight contact with the slide ridge 11 without any gap. Thus, the filter main body 2 can be smoothly put in and out of the main body box 1 by sliding the upper and lower slide grooves 12 on the upper and lower slide ridges 11 in the main body box 1. A gap between the inner surfaces of the top plate 5 and the bottom plate 6 of the main body box 1 and the overlapping surface of the upper frame 9a and the lower frame 9b of the filter main body 2 is formed by fitting the slide ridge 11 and the slide groove 12 into a maze. Therefore, it is possible to prevent the air from the air inlet 3 from leaking to the air outlet 4 without being filtered.

As shown in FIGS. 2 and 4, a rear vertical bar 14 having a groove-shaped cross section is provided in the air outlet 4 on the rear side of the main body box 1 so as to correspond to the rear end position of the slide ridge 11. Is fixed at a predetermined interval to the rear vertical rail 14
The rear frame 9d of the filter body 2 is received in the groove 14a. In the air inlet 3 on the front side of the main body box 1, the front vertical rails 15 having a groove shape in cross section are arranged at predetermined intervals in the left and right direction so as to correspond to the front end position of the slide ridge 11. A holding frame 18 connected by bars 16 and 17 is freely fitted. After the filter main body 2 is inserted into the main body box 1 and mounted, the holding frame 18 is fitted and fixed on the front side of the main body box 1, and the front frame 9 c of the filter main body 2 is pushed in the groove 15 a of the front vertical rail 15. The whole filter body 2 is the rear vertical beam 1
Pressed against 4.

As shown in FIG. 4, a sealing member 19 made of sponge rubber or the like is provided in each of the grooves 14a and 15a of the rear vertical rail 14 and the front vertical rail 15 so as to prevent the adjacent filter main bodies. 2, 2 front frames 9c, 9c
The inflowing air is prevented from leaking to the air outlet 4 side without being filtered from the joint portion between the rear frames and the joint portion between the rear frames 9d and 9d. At that time, between the contact surfaces between the front and rear frames 9c and 9d of the filter body 2 and the sealing material 19, it is possible to provide a longitudinal groove 20 on one side and a ridge 21 fitted on the longitudinal groove 20 on the other side. It is possible to more reliably prevent air leakage.

In the above configuration, the air flowing from the air inlet 3 is cleaned by the filtering action of the filter medium 10 of the filter body 2 and flows out of the air outlet 4. At this time, as described above, air does not leak from gaps between the respective inner surfaces of the top plate 5 and the bottom plate 6 of the main body box 1 and the upper frame 9a and the lower frame 9b of the filter main body 2, and air does not leak. Front frames 9c, 9 of filter bodies 2, 2
Leakage of air from the gap between the joints between the c and the joint between the rear frames 9d and 9d can be prevented, and the efficiency of air cleaning can be increased.

When the filter main body 2 is damaged due to use, the main body box 1 is used as it is, and only the filter main body 2 is taken out of the main body box 1 and replaced with a new one, and this replacement can be easily performed. If only the filter medium 10 is dirty or damaged,
By separating the left and right divided frames 91 and 92 of the filter frame 9, the filter medium 10 can be removed, so that cleaning, cleaning and replacement can be easily performed. After washing, the filter medium 10 can be reused by being re-fitted into the filter frame 9 again.

Contrary to the above embodiment, slide ridges 11 having a triangular cross section are provided on the upper frame 9a and the lower frame 9b of the filter frame 9 of the filter body 2 on the inner surfaces of the top plate 5 and the bottom plate 6 of the body box 1, respectively. It is also possible to provide a groove member 13 having a slide groove 12 having a V-shaped cross section. Also,
As shown in FIG. 5, a slide groove 12 having a T-shaped cross section is formed on each inner surface of the top plate 5 and the bottom plate 6 of the main body box 1.
A slide ridge 11 having a T-shaped cross section is provided on the upper frame 9a and the lower frame 9b.
May be provided.

[0019] In the filter frame 9, as a means for detachably coupling the left and right divided frames 91, 92, Fig. 6
Or by integrally projecting the engaging projection 22 to one several locations of the left and right divided frames 91, 92 as shown in FIG. 9, at a engagement hole 23 corresponding to the engaging projection 22 to the other, engaging Projection 22
Is engaged with the engagement hole 23 so as to be releasably engaged (see FIG. 7 ). Further, in order to prevent the bellows-like filter medium 10 from moving in the expansion and contraction direction in the filter frame 9, filter medium holding projections 24 are integrally provided at several places on the inner surfaces of the left and right divided frames 91 and 92. Crest portions 10a, 10a of the filter medium 10 adjacent to the filter medium holding projections 24
Engage each other (see FIG. 7 ).

Thus, the left and right divided frames 91 and 92 are separably connected by the engagement of the engaging projections 22 and the engaging holes 23 formed integrally with the divided frames 91 and 92. By restricting the movement of the filter medium 10 in the expansion and contraction direction by the filter medium holding projections 24 integrally formed on the components 91 and 92, there is no need to specially prepare a connecting member or a movement restricting member separately from the filter frame 9. Not only can the number of members and the number of assembling steps be reduced accordingly, but also in the case of recycling when discarding the filter frame 9, the work of separating foreign materials can be omitted, so that it becomes easier to recycle. Incidentally, the divided frames 91 and 92 of the right and left shown in FIG. 8 9
As shown in FIG. 5, both are formed in the same shape so that they can be butted upside down.

[0021]

According to the present invention, the filter main body can be taken in and out of the main body box, so that the filter main body alone can be washed or replaced and reused, thereby saving resources and reducing waste. Useful. In addition, by separating the left and right divided frames of the filter frame, the filter frame and the filter medium can be easily separated, and the filter medium alone can be easily washed or replaced.

[Brief description of the drawings]

FIG. 1 is an external perspective view of an air filter for air conditioning.

FIG. 2 is an exploded perspective view of an air filter for air conditioning.

FIG. 3 is a longitudinal sectional front view showing a fitting structure of a filter main body into a main body box.

FIG. 4 is a cross-sectional plan view showing a fitting structure of a filter main body into a main body box.

FIG. 5 is a longitudinal sectional front view of a fitting structure of a filter main body, showing another embodiment corresponding to FIG. 3;

FIG. 6 is a perspective view of a filter body showing another embodiment.
You.

FIG. 7 is an enlarged sectional view taken along the line AA in FIG . 6;

8 is an exploded perspective view of the filter main body shown in FIG.
You.

9 is a side view of a divided frame of the filter main body shown in FIG.
is there.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body box 2 Filter main body 3 Air inflow port 4 Air outflow port 9 Filter frame 10 Filter filter medium 22 Engagement projection 23 Engagement hole 24 Filter medium holding projection 91,92 Division frame

Claims (1)

(57) [Claims] The method according to claim 1] air inlet on the front side, a body box air outlet comprising respectively opened to the rear side, between the air inlet and the air outlet in the main box, zigzag in the lateral direction Body box to be arranged in a shape
And a filter body that will be out capable mounted from the front side of the filter body, the filter frame formed by butt-coupled split frame of the left and right plastic detachably, fitted a filter medium Each of the left and right divided frames is formed in a rectangular frame shape having upper and lower frames and front and rear frames, the filter medium is detachably sandwiched between the left and right divided frames , and the left and right divided frames are separated from each other. Engagement projecting on one side
The protrusion is engaged with the engagement hole formed on the other
The inner surfaces of the left and right divided frames are folded in a bellows shape.
Between the peaks of the filter medium
Integrated filter media holding projections that prevent the
The main body box has a filter book inside the air outlet.
Receiving the rear frame of the body via sealing material to prevent air leakage
The vertical rails behind the grooved section are spaced at predetermined intervals in the left-right direction.
The filter is arranged and fixed in the air inlet of the main body box 1.
Push the front frame of the main unit through a sealing material to prevent air leakage.
Attach the front vertical rail with a cross section to be
A pusher with horizontal beams connected at regular intervals
An air filter for air-conditioning, characterized in that the frame is freely fitted .