JPH06307687A - Ventilator with filter - Google Patents

Abstract

PURPOSE:To effectively utilize a filter body having a sheetlike filter. CONSTITUTION:Engaging pieces 20 of the same shape having engaging holes 20a are provided at upper and lower parts of a front surface of a decorative frame 19, and engaging pawls 26, 27 to be removably engaged with the pieces 20 are provided at inner surface sides of an upper side 24a and a lower side 24b of a frame 24 of a filter body 22. The pieces 20 and the pawls 26, 27 are so formed as to be removably engaged even when the body 22 is inverted upside down to the frame 19. When contaminant of, for example, a lower side 23a of the filter 23 of the body 22 reaches a replacing period, the body 22 is inverted upside down to be used. Thus, it can be used until the entire filter 23 is substantially uniformly contaminated, and the body 22 can be effectively utilized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation fan with a filter in which a filter body having a sheet filter is detachably mounted on the front surface of a decorative frame.

[0002]

2. Description of the Related Art For example, in a ventilation fan with a filter installed on a wall of a kitchen, a filter body having a sheet-like filter is detachably attached to the front surface of a decorative frame, and the sheet-like filter causes oil smoke, etc. By collecting the air blower, it is possible to reduce dirt on the blower fan and the decorative frame.

Here, the mounting structure of the filter body to the decorative frame has the structure shown in FIGS. 7 and 8. That is, on the front surface of the decorative frame 1, L-shaped hooking pieces 2 and 2 are provided on the upper left and right sides, and engaging pieces 3 and 3 having engaging holes 3a are provided on the lower left and right sides. . On the other hand, in the frame portion 6 of the filter body 5 provided with the sheet-shaped filter 4, the hooking pieces 2, 2 are provided on both left and right sides of the upper portion.
And engaging claws 8 and 8 are formed on both left and right sides of the lower portion in correspondence with the engaging pieces 3 and 3, respectively.

In the filter body 5, the upper engaging holes 7, 7 are releasably engaged with the hooking pieces 2, 2 and the lower engaging pawls 8, 8 are engaged with the engaging pieces 3, 2. 3 engaging holes 3a,
By being detachably engaged with 3a, it is detachably mounted on the front surface of the decorative frame 1.

In this type of filter-equipped ventilation fan, the sheet-shaped filter 4 is contaminated with oil smoke and the like as it is used.
When a part of the sheet-shaped filter 4 has the color of the replacement time shown in the instruction manual, the filter body 5 is replaced.

[0006]

By the way, in this type of filter-equipped ventilation fan, the entire sheet-shaped filter 4 is not necessarily uniformly soiled during use.
The degree of contamination is often different depending on the site of the sheet-shaped filter 4 due to installation conditions and the like.

However, conventionally, the sheet-shaped filter 4 is used.
Since the filter body 5 is replaced when a part of the color of the sheet becomes the color of the replacement time shown in the instruction manual, the filter body 5 can be used as a part of the sheet-like filter 4 although the filter body 5 can be used. Had been replaced. That is, there is a problem that the filter body 5 is not effectively utilized.

Therefore, an object of the present invention is to provide a ventilation fan with a filter which can effectively utilize a filter body having a sheet filter.

[0009]

SUMMARY OF THE INVENTION The present invention is a decorative frame having a ventilation fan main body equipped with a motor and a blower fan rotated by the motor, and a bell mouth mounted on the front surface of the ventilation fan main body and corresponding to the ventilation fan. And a filter-equipped ventilation fan comprising a sheet-shaped filter and a filter body detachably mounted on the front surface of a decorative frame, wherein engaging portions are provided on the upper and lower portions of the decorative frame, and An engaged portion is provided which engages with the engaging portion in a disengageable manner, and the engaging portion and the engaged portion are engageable with each other even when the filter body is turned upside down with respect to the decorative frame. It is characterized in that it is configured to.

It is preferable that the sheet-like filter in the above filter body is bulged forward so as to have a ridge line extending in the lateral direction at a substantially central portion in the vertical direction by the supporting bar.

It is preferable that the decorative frame is provided with an oil receiver detachably mounted below the filter body mounted on the decorative frame. Further, the filter body may be configured to have an oil receiving portion on each of an upper side portion and a lower side portion of the filter body.

[0012]

When a part of the sheet-like filter in the filter body, for example, the dirt on the lower side reaches the replacement time due to use, the filter body is once removed from the decorative frame, and the filter body is turned upside down. Reattach to the makeup frame and use. Thereby, as the filter body, it becomes possible to use the sheet-shaped filter until the whole is soiled substantially uniformly.

When the sheet filter is bulged forward so as to have a ridge line extending in the lateral direction at the substantially central portion in the vertical direction by the support bar, the lower side of the sheet filter is concentrated with use. It becomes dirty. Then, when the dirt on the lower side of the sheet filter reaches the replacement time, by inverting the filter body and using it,
In the sheet filter, the dirty side is the upper side, the less dirty side is the lower side, and this time the lower side is intensively soiled.

When the oil receiver is detachably attached to the decorative frame, even if the filter body is turned upside down, the oil and the like dripping from the sheet filter can be received by the oil receiver.

Further, in the case where the filter body is provided with the oil receiving portions on the upper side and the lower side, respectively, even when the filter body is installed upside down, the oil and the like dripping from the sheet filter is received. It can be received by a part, and in this case, there is an advantage that an oil receiver is not required separately.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. First, in FIG. 1 showing an installation state, the ventilation fan main body 11 is installed in an opening 13 formed in, for example, a wall 12 of a kitchen in an inserted state. In this ventilation fan main body 11, a motor 15 is attached to a substantially central portion of a main body frame 14 having a rectangular frame shape, a blower fan 16 is attached to a rotating shaft of the motor 15, and a plurality of air vents are provided outside the main body frame 14. The shutter 17 of the wind pressure release type is rotatably attached.

A decorative frame 19 in the form of a rectangular frame having a circular bell mouth 18 corresponding to the blower fan 16 in the center is detachably attached to the front side of the ventilation fan main body 11, which is the indoor side. . The decorative frame 19 is made of synthetic resin, and has two engaging pieces 20 as engaging parts of the same shape having engaging holes 20a on the upper and lower parts of the front surface, as shown in FIG. A total of four are provided, one by one. In addition, two mounting holes 21 are formed in the lower portion of the front surface of the decorative frame 19 so as to be positioned below both lower engaging pieces 20.

The filter body 22 is formed by molding a frame portion 24 having a rectangular frame shape on the outer peripheral portion of a sheet filter 23 made of, for example, a non-woven fabric, from synthetic resin. A supporting bar 25 is attached to the back side of the sheet filter 23 in the filter body 22, and the sheet filter 23 is expanded forward by the supporting bar 25 so as to have a ridge line extending in the lateral direction at a substantially central portion in the vertical direction. It is supposed to be put out.

Further, as shown in FIG. 3, engaging claws 26 and 27 are respectively formed on the inner surfaces of the upper side 24a and the lower side 24b of the frame 24 of the filter body 22 as engaged parts.
2 are integrally provided corresponding to the engaging pieces 20. The engaging claws 26 on the upper side 24a side and the engaging claws 27 on the lower side 24b side are vertically symmetrical.

Therefore, the filter body 22 has an upper side portion 24.
The engaging claws 26 of a are engaged with the engaging holes 20a of the upper engaging pieces 20 of the decorative frame 19 in a disengageable manner from above, and the engaging claws 27 of the lower side portion 24b of the decorative frame 19 are provided. The engaging holes 20a of the lower engaging pieces 20 are detachably engaged with the engaging holes 20a from below, so that the decorative frame 19 is detachably attached (see FIG. 1). Here, the engaging piece 20 in the decorative frame 19 and the engaging claw 2 in the filter body 22
Nos. 6 and 27 are configured to engage with and disengage from each other even when the filter body 22 is turned upside down with respect to the decorative frame 19.

On the other hand, the oil receiver 28 is made of a synthetic resin in the shape of a container, and the claws 29 are formed on the back side of the oil receiver 28, respectively.
Two mounting portions 29 having a are integrally provided. In this oil receiver 28, both attachment portions 29 are attached to both attachment holes 2 of the decorative frame 19.
By being inserted into and engaged with 1, the decorative frame 19 is detachably attached to the lower part of the front surface of the decorative frame 19 below the filter body 22.

Next, the operation of the above configuration will be described. In the state of FIG. 1, when the blower fan 16 is rotationally driven by energizing the motor 15, the air on the indoor side is sucked into the ventilation fan main body 11 through the sheet filter 23, and the air causes the shutter 17 to open. While being discharged outdoors.

Here, when the indoor air passes through the sheet filter 23, oily smoke and the like contained in the air is collected by the sheet filter 23, whereby the blower fan 16 and makeup are made. The stain on the frame 19 is reduced.

At this time, the sheet-shaped filter 23 is bulged forward by the support bar 25 so as to have a ridge line extending in the lateral direction at a substantially central portion in the up-down direction, so that the sheet-shaped filter 23 passes through the ventilation fan. Body 11
The air sucked in mainly passes through the lower portion 23a side of the sheet filter 23 as shown by an arrow A in FIG. For this reason, the lower part 23a side of the sheet filter 23 becomes intensively soiled as it is used. The oil or the like collected in the sheet filter 23 eventually drips down the sheet filter 23, and the dripping oil or the like is received and stored in the oil receiver 28.

The lower portion 23 of the sheet filter 23
When the dirt on the a side reaches the replacement time, the mounting portion 29 of the oil receiver 28 and the mounting hole 21 of the decorative frame 19 are disengaged from each other to remove the oil receiver 28 from the decorative frame 19 and the filter body 22. By disengaging the engaging claws 26, 27 from the engaging pieces 20 of the decorative frame 19, the filter body 22 is once removed from the decorative frame 19. After that, in a state where the filter body 22 is turned upside down, the engaging claws 26 and 27 are engaged with the engaging pieces 20, so that the filter body 22 is again attached to the decorative frame 19. The oil pan 28 is attached and used again.

In this way, by using the filter body 22 upside down, the sheet-like filter 23 has the lower portion 23a side which is much soiled, and the upper portion 23b side which is less soiled is the lower side. The lower part of it becomes heavily soiled. By using the filter body 22 in this manner, the filter body 22 can be used until the entire sheet-shaped filter 23 becomes substantially uniformly soiled, and thus the filter body 23 is effectively used. be able to.

4 to 6 show a second embodiment of the present invention, which is different from the first embodiment in the following points.
That is, the decorative frame 3 mounted on the front surface of the ventilation fan main body 11
On the front surface of No. 0, two engaging pieces 20 are provided, two at the top and the bottom, but a total of four engaging pieces 20 are not provided. On the other hand, in the filter body 22, the frame portion 31
Recessed oil receiving portions 32, 32 are integrally formed on the front surfaces of the upper side portion 31a and the lower side portion 31b.

Also in this case, the upper side portion 3 of the frame portion 31
The engaging claws 26 and 27 are provided on the inner surface side of the lower side portion 1a and the lower side portion 31b.
2 are provided corresponding to the above-mentioned engaging pieces 20, that is, a total of 4 pieces are provided, and the filter body 22 can be mounted even when it is turned upside down with respect to the decorative frame 30.

The second embodiment as described above has the following advantages in addition to the same operational effects as those of the first embodiment described above. That is, the upper side portion 31a and the lower side portion 31b of the frame portion 31 in the filter body 22.
Since the oil receiving portions 32, 32 are integrally formed in the above, it is possible to reduce the number of parts by that amount and facilitate the attachment / detachment work without the need for a separate oil receiving portion.

The present invention is not limited to the embodiments described above and shown in the drawings. For example, the decorative frame 1
Except for the above, the engaging portion on the 9 and 30 side and the engaged portion on the filter body 22 side can be engaged and disengaged even when the filter body 22 is turned upside down with respect to the decorative frames 19 and 30. The shape may be changed, and the invention can be appropriately modified and implemented within a range not departing from the gist.

[0031]

According to the ventilation fan with filter of the first aspect, the filter body having the sheet filter can be mounted even when the filter body is turned upside down with respect to the decorative frame. As a result, the sheet-shaped filter can be used until it becomes almost uniformly soiled, whereby the filter body can be effectively used.

According to the ventilation fan with a filter of the second aspect, the sheet-like filter in the filter body is bulged forward so as to have a ridge line extending in the lateral direction at a substantially central portion in the vertical direction by a supporting bar. By doing so, the dirt can be concentrated on the lower side of the sheet filter.

According to the ventilation fan with a filter of the third aspect, even when the filter body is mounted upside down, the oil and the like dripping from the sheet filter can be received by the oil receiver.

According to the ventilation fan with a filter of the fourth aspect, by having the oil receiving portions on the upper side and the lower side of the filter body, respectively, even when the filter body is installed upside down, it is a sheet shape. It is possible to receive the oil dripping from the filter by the oil receiving portion, and in this case, since the oil receiving portion is not required separately, there is an advantage that the number of parts can be reduced correspondingly and the attaching and detaching work can be facilitated.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of an installed state showing a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of a main part

FIG. 3 is a vertical sectional side view of the filter body.

FIG. 4 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.

FIG. 5 is a view corresponding to FIG.

FIG. 6 is a view corresponding to FIG.

FIG. 7 is a perspective view of a decorative frame and a filter body showing a conventional configuration.

FIG. 8 is a view corresponding to FIG.

[Explanation of symbols]

11 is a ventilation fan main body, 15 is a motor, 16 is a blower fan,
18 is a bell mouth, 19 is a decorative frame, 20 is an engagement piece (engagement portion), 21 is an attachment hole, 22 is a filter body, 23 is a sheet filter, 25 is a support bar, and 26 and 27 are engagement claws ( Engaged part), 28 is an oil receiver, 29 is an attachment part, 30 is a decorative frame,
Reference numeral 31 is a frame portion, 31a is an upper side portion, 31b is a lower side portion, and 32 is an oil receiving portion.

Claims (4)

[Claims] 1. A ventilation fan main body having a motor and a blower fan rotated by the motor, a decorative frame having a bell mouth attached to the front surface of the ventilation fan main body and corresponding to the blower fan, and a sheet filter. A ventilation fan with a filter, comprising: a filter body detachably attached to a front surface of the decorative frame, wherein engaging portions are provided on an upper portion and a lower portion of the decorative frame, and the engaging portion is provided on an upper portion and a lower portion of the filter body. Provided are engageable parts that engage with each other in a disengageable manner, and the engageable parts and the engageable parts are engaged with each other in a disengageable manner even when the filter body is turned upside down with respect to the decorative frame. A ventilation fan with a filter characterized by being configured. 2. The sheet-shaped filter in the filter body is formed so as to bulge forward so as to have a ridge line extending in the lateral direction at a substantially central portion in the vertical direction by a supporting bar. Ventilation fan with the described filter. 3. The ventilation fan with a filter according to claim 1, wherein the decorative frame includes an oil receiver detachably mounted below the filter body mounted on the decorative frame. 4. The ventilation fan with a filter according to claim 1, wherein the filter body has an oil receiving portion on each of an upper side portion and a lower side portion.