JPS5934821Y2 - ventilation fan - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ventilation fan, and more particularly to a ventilation fan that improves the cleanability of decorative grilles, blower fans, and the like.

Conventionally, ventilation fans are very easily contaminated by oil and dust contained in the ventilation flow, and must be cleaned frequently, but oil pans around the fan, decorative grilles attached to indoor ventilation openings, or blower fans If you want to remove oil dust that has adhered to the parts such as the The attachment process was extremely troublesome and cleaning was difficult.

In addition, conventionally, an oil reservoir has been provided at the bottom of the oil pan of a ventilation fan to catch the adhering oil flowing down, but since the conventional oil reservoir is integrally molded into the oil pan body,
The oil dust accumulated in the oil reservoir is wiped off with cloth, paper, etc., but since the ventilation fan is installed at a high position near the ceiling, cleaning this oil reservoir is extremely troublesome.

In addition, since the conventional oil reservoir is integrated with the oil receiver, its volume, that is, the amount of oil it can receive, is small. had to be removed.

Therefore, in view of the above-mentioned conventional circumstances, the present invention provides a ventilation fan in which cleaning performance is greatly improved by simply improving the mounting structure of the decorative panel and the oil reservoir.

An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a frame constituting a ventilation path 2 of a ventilation fan, which is fixed through a wall opening (not shown).

3 is a blower fixedly supported on the inner wall of frame 1 via mounting legs 4; 3A is a fan; 3B is a fan drive motor; 5 is an oil pan disposed around fan 3A;
It can be freely attached and detached.

Reference numeral 5A denotes an engagement piece for attaching a decorative panel, which will be described later, formed on the upper front surface of the oil pan 5, and 5B denotes an engagement plate for attaching a decorative panel, which is formed to protrude horizontally from both sides of the lower front surface of the oil pan 5. 5a and two 5b screw holes as shown in FIG.
An engagement hole is provided.

In Figures 1 and 2, 5C is a rising part formed on the outer peripheral edge of the front surface of the oil pan 5, and the lower edge side of the oil pan 5 is cut out with a width less than the width of the oil reservoir described later. .

5D is a projection piece for the oil side formed at the lower end of the oil pan 5, 6 is a decorative grill attached to the front of the ventilation fan, that is, the front of the oil pan 5,
The front surface has a large number of horizontally long 6A ventilation holes arranged in parallel.

Reference numeral 6B is formed at the upper end of the decorative grille 6 and engages with the engagement piece 5A of the oil pan 5, and 6a and 6bF'i is formed on the inner walls of both sides of the lower end of the decorative grille 6, and the screws of the oil pan 5 Screw through holes and engagement claws provided at positions corresponding to the holes 5a and engagement holes 5b; 6C is a notch for oil guide formed on the lower end edge of the decorative grille 6 on the installation side; 7 is a cutout in front of the decorative grille 6; The filter mounting plate 7A is a grease filter, which is disposed so as to face the inner surface of the grille 6 with a gap therebetween, and is detachably attached by a locking protrusion 6D formed on the inner circumferential wall of the grille 6. It is held between the front inner surface of the decorative grille 6 and the front inner surface of the decorative grille 6.

In the decorative grille 6 having such a configuration, the upper retaining groove 6B is connected to the oil pan 5.
It is temporarily fixed to the oil pan 5 by engaging the upper engaging piece 5A and fitting the engaging claws 6b on both sides of the lower portion into the engaging holes 5b of the engagement plate 5B at the lower part of the oil pan 5.

By releasing the engagement with the lower part of the oil pan 5, it is possible to rotate as shown by the arrow in FIG. 1 using the engagement part on the upper side as a fulcrum.

A box-shaped oil reservoir 8 receives and collects oil dust falling from the decorative grille 6 and oil pan 5, and is attached to the lower ends of the decorative grille 6 and oil pan 5.

That is, a boss 9 as a spacer having a H9A screw insertion hole is formed on both inner walls of the bottom of the oil reservoir 8, and the ten single screws inserted from the outside into the screw insertion hole 9A are inserted into the screws of the decorative grille 6. Engagement plate 5 of oil pan 5 from through hole 6a
By screwing into the screw hole 5a of B, the first
It is fixed as shown in the figure, and at the same time, the decorative grille 6 which is in a temporarily fixed state is fixed.

The oil reservoir 8 can be removed by loosening the single screw 10.

In the ventilation fan configured as described above, when the blower 3 is operated to rotate the fan 3A, for example, the decorative grill 6
Indoor air is sucked in through the opening of the frame 1 and discharged to the outside through the ventilation passage 2 of the frame 1 to ventilate the room.

In this case, part of the oil dust in the air sucked in from the ventilation port 6A of the decorative grille 6 is filtered by the grease filter 7A, and the other part is left on the front and inner peripheral surface of the oil pan 5 and inside the decorative grille 6. Adheres to the surrounding surface.

The oil dust flows downward along these wall surfaces and flows down from the notch 6C at the lower end of the decorative grille 6 into the oil reservoir 8, where it is collected.

In this case, the oil flowing down from the notch 6C is effectively drained by the oil draining protrusion 5D and does not stain the outer surface of the oil pan 5 facing into the oil reservoir 8.

When a predetermined amount of oil dust is collected in the oil reservoir 8 as described above, the oil reservoir 8 can be removed by loosening the thumbscrew 10, and the oil dust inside can be disposed of at an arbitrary location.

After removing the oil reservoir 8 in this way, the engagement claw 6b at the bottom of the decorative grille 6 and the engagement hole 5b of the oil pan 5 are disengaged, and the decorative grille 6 is moved to the upper side as described above. 1 with the part as the fulcrum
The decorative grille 6 and the oil pan 5 can be easily cleaned by rotating to the position shown by the dotted chain line, disengaging the upper engagement piece 5A from the engagement groove 6B, and removing the fan. 3A can be removed and cleaned.

Further, by removing the filter fixing member 7 of the decorative grille 6 and removing the grease filter 7A, the filter 7A can be cleaned by washing with water or the like.

After cleaning the ventilation fan, as mentioned above,
is engaged with the oil pan 5 and temporarily fixed, and the oil reservoir 8 is attached to the oil pan 5 one by one.
It is only necessary to securely attach the decorative grille 6 to the oil pan 5 at the same time as fixing it with the internal screws 10.

Since the present invention is constructed as described above, by removing the oil sump, that is, by removing the fasteners fixing it, the decorative grill can be easily removed with one touch, and the decorative grill, oil sump, and fan can be easily removed. In addition, since the oil reservoir is constructed separately from the ventilation fan body, the oil dust accumulated in the oil reservoir can be easily disposed of.
Since it can be attached and detached easily and reliably, it is very convenient to handle.

In addition, since the oil sump is separate, the volume can be increased and the oil will not overflow from the oil sump in a short period of time, making it practical to greatly improve cleaning performance. It is very effective.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view illustrating an embodiment of a ventilation fan according to the present invention, and FIG. 2 is a partially enlarged perspective view of the same ventilation fan. 3A...Fan, 5...Oil pan, 5A...
...Engagement piece, 5B...Engagement plate, 6...
... Decorative grille, 6B... Retaining groove, 6B...
...Engaging claw, 8...Oil pool, 9...
・Boss, 10... 1 screw.

Claims (5)

[Scope of utility model registration request] (1) An oil pan that surrounds the fan of the ventilation fan, a decorative grill that is placed in front of the oil pan and has a ventilation hole, and an oil pan that collects the oil that flows down the oil pan and the inner wall of the decorative grill. The decorative grille is detachably engaged with the oil pan, and the oil reservoir, the oil pan, and the flat ends of the decorative grille are connected to each other in a detachable manner by the same fastening device. ventilation fan. (2) Practical use in which the fastening device has a configuration in which a bolt inserted from the bottom wall of the oil sump is inserted through a spacer interposed between the oil sump and the decorative grille and the decorative panel, and screwed into the lower end of the oil sump. A ventilation fan according to claim 1 of the patent registration claim. (3) The upper end of the decorative grille is rotatably engaged with the upper end of the oil pan, and the lower end is engaged in the fastening direction of the fastening device. Ventilation fan described in Section 2. (4) Utility model registration claim 1, in which the oil pan and the lower end side engaging portion of the decorative grill are fastened together by a fastening device
The ventilation fan according to any one of items 1 to 3. (5) The ventilation fan according to any one of claims 1 to 4, which is a registered utility model, wherein the decorative grille or oil pan is provided with a grease filter fixed in a detachable manner.