JPH06201167A - Filter for ventilating-fan - Google Patents

Abstract

PURPOSE:To provide a filter for a ventilating fan, which can be repeatedly used by the replacement of its main part and has favorable disposability, and thus the filter is easily treated when turned into a refuse and the maintenance cost can be reduced. CONSTITUTION:A filter for a ventilating fan is so composed that a frame body 1 holding a filtering element 2 for filtering passing air is made of reusable metal and that the filtering element 2 is made of combustible material which can be burnt up and is replaceable for the frame body 1. In this way, the frame body 1 can be repeatedly used by the replacement of the filtering element only, and since the filtering element having been used up can be burnt up, waste disposal is made easy and the maintenance cost can be also reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation fan filter device which is attached to the suction side of a ventilation fan to prevent dirt from adhering to the body of the ventilation fan.

[0002]

2. Description of the Related Art A filter device for preventing the main body of a ventilation fan from becoming dirty is, for example, as a single unit.
As shown in Japanese Patent Laid-Open No. 2 (1994), many ventilation fans with filters are detachably attached to the front of the ventilation fans.

In the conventional filter device of this type, as shown in FIG. 7, basically, a filter element 12 is attached to a resin frame 11 having a structure for attaching to and detaching from the front surface of the ventilation fan 10, and both are integrated. It has been configured.

The filter device having the above structure is designed so that it can be cleaned and reused when it becomes dirty, but it is disposable after a certain amount of repeated use. Therefore, the frame body 11 is made of resin, and if replaced with a new one, the front surface portion of the ventilation fan 10 can be updated to a new state, and adhesion of dirt on the body side of the ventilation fan 10 can be prevented for a long time.

[0005]

In the filter device for the ventilation fan as described above, the filter device itself is replaced when the dirt becomes severe, and the frame body 11 integrated with the filter element 12 is also abolished. It will be rejected and the cost will be higher because it can not be used repeatedly. Moreover, since it is still in the shape of a frame, it is difficult to dispose of it in bulk, and there is a problem to be solved that it cannot be discarded as a combustible material.

The present invention has been made in order to solve such a conventional problem, and can be repeatedly used by exchanging a main part, has a good disposability, and is easy to handle when it becomes dust. A filter device for a ventilation fan. The purpose is to provide.

[0007]

According to a first aspect of the present invention, there is provided a ventilation fan filter device in which a frame for supporting a filter element for filtering passing air is made of metal and the filter element is made of a combustible material. It is configured to be replaceable with respect to the body.

In the filter device for a ventilation fan according to the second aspect of the present invention, both the frame element supporting the filter element for filtering the passing air and the filter element are made of combustible material, and the filter element is replaced with respect to the frame element. It was made possible.

In the filter device for a ventilation fan according to the third aspect of the present invention, the frame body for supporting the filter element for filtering the passing air is made of metal punching metal, and the filter element is a bag or cylinder of combustible material. It is formed on the body and covers the frame body in a replaceable manner.

[0010]

In the first aspect of the present invention, the frame element can be used repeatedly by exchanging only the filter element, and the used filter element can be incinerated.

In the second aspect of the present invention, the frame can be reused to some extent by exchanging only the filter element, and both the used filter element and the frame can be incinerated.

According to the third aspect of the invention, the frame can be reused by replacing only the filter element, the used filter element can be incinerated, and the filtered air can be filtered. Is tripled and the dust collection efficiency is improved.

[0013]

【Example】

Example 1. FIG. 1 is a perspective view of a ventilation fan with a filter showing an embodiment of the present invention. The filter-equipped ventilation fan includes a detachable filter device on the front surface of the main body of the ventilation fan.

The filter device comprises a frame 1 and a filter element 2.
The air intake fan is formed by a combination of the above and covers the suction port that is open at the front surface of the main body 3 of the ventilation fan so as to cover the front surface, and collects dust and oil drops of passing air. The filter element 2 is made of a combustible material that can be incinerated and is formed into a bag or a cylinder. The frame 1 has a structure for supporting the filter element 2 and for attaching / detaching the ventilation fan to / from the main body 3, and is configured as a reusable metal rectangular frame.

Assembling of the filter element 2 and the frame 1 is carried out by accommodating the frame 1 in the bag-shaped or cylindrical filter element 2 and covering the frame 1 with the filter element 2. The mounting on the main body 3 is performed by locking the locking structure 4 provided on the frame 1 to the main body 3 side.

In this ventilation fan with a filter, since the air that has passed through the filter device passes through the main body 3 of the ventilation fan, the main body 3 of the ventilation fan does not need to be very dirty although the filter device is dirty. If the dirty filter device is removed from the main body 3 and cleaned or reattached, the front part of the ventilation fan will be kept clean.

The filter device may be cleaned by removing the frame 1 from the filter element 2 and separating the filter element 2 from the frame 1. Cleaned filter element 2
When attaching to the frame 1, the part that has been less dirty can be brought to the front by reversing the part that was on the front and the part that was on the back. The filter element 2 that is so dirty that it is no longer clean after cleaning is replaced with a new one.

Since the used filter element 2 can be incinerated, it can be treated as a combustible material and easily discarded. On the other hand, with respect to the frame body 1, the filter element 2 is replaced and repeatedly used. Therefore, in this filter device, the disposable part is only the filter element 2 and the cost is reduced, the filter element 2 can be easily discarded, and the air filtering part is double inside and outside, so that the dust collecting effect is obtained. Also gets better.

Example 2. 2, 3 and 4 show another embodiment of the present invention. FIG. 2 is a perspective view of a ventilation fan with a filter, FIG. 3 is an explanatory view for handling a filter element, and FIG. 4 is for handling a frame body. FIG.

The filter-equipped ventilation fan of this embodiment is basically the same as that shown in the first embodiment, except that the frame body is also made of combustible material. Therefore, description of the same or corresponding parts as those of the first embodiment will be omitted by giving the same reference numerals to the drawings.

In the filter device of this embodiment, the frame 1a can be incinerated, and as shown in FIG. 4, it should be bent or folded into a rod-shaped piece for easy handling when it is discarded. You can The other functions are the same as those of the first embodiment.

Example 3. 5 and 6 show still another embodiment of the present invention, FIG. 5 is a perspective view of a ventilation fan with a filter, and FIG. 6 is an enlarged partial perspective view showing the function of the filter device.

The ventilation fan with a filter of this embodiment also has a frame 1
Is basically the same as that shown in the first embodiment except that it is integrally formed of a punching metal made of metal into a channel type having flanges 5 on the left and right. Therefore, description of the same or corresponding parts as in the first embodiment will be omitted by giving the same reference numerals to the drawings.

The function of the filter device of this embodiment is substantially the same as that of the first embodiment, but in particular, the frame body 1 itself also performs the filter function, and the triple collection points A, B, C inside and outside are provided.
Is characterized in that the dust collection efficiency is improved. The other functions are the same as those of the first embodiment.

[0025]

As is apparent from the above description of the embodiments, according to the first invention, it is possible to replace only the filter element,
The frame can be reused and the used filter element can be incinerated for easy disposal.
Cost is also reduced.

According to the second aspect of the present invention, the frame can be reused to some extent by replacing only the filter element,
Both the used filter element and the frame can be incinerated, which makes disposal easier and reduces costs.

According to the third aspect of the invention, the frame element can be repeatedly used by exchanging only the filter element, the used filter element can be incinerated, and the filtered air can be filtered. The locations are tripled, and the dust collection efficiency is improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a ventilation fan with a filter showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a ventilation fan with a filter showing another embodiment of the present invention.

FIG. 3 is an explanatory diagram showing how to handle a filter element of the filter device in FIG.

FIG. 4 is an explanatory diagram showing how to handle a frame body of the filter device in FIG.

FIG. 5 is an exploded perspective view of a ventilation fan with a filter according to another embodiment of the present invention.

6 is a partially enlarged perspective view showing the function of the filter device of FIG.

FIG. 7 is an exploded perspective view of a conventional ventilation fan with a filter.

[Explanation of symbols]

 1 Frame 1a Frame 2 Filter element 3 Main body A Collection location B Collection location C Collection location

Claims (3)

[Claims] 1. A filter element for filtering air passing therethrough and a frame body for supporting the filter element. The frame body is made of metal, and the filter element is made of a combustible material. A filter device for a ventilation fan, characterized in that it can be replaced. 2. A filter element for filtering passing air and a frame supporting the filter element. The frame is made of a combustible material, and the filter element is also made of a combustible material. A filter device for a ventilation fan, which is replaceable. 3. A filter element for filtering passing air and a frame supporting the filter element. The frame is made of metal punching metal, and the filter element is made of a combustible material bag or cylinder. A filter device for a ventilating fan, characterized in that it is formed into a cover and is replaceably covered on the frame.