JPS5926215B2 - Oil collection equipment such as ventilation fans - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oil collecting device for a range ventilation fan or the like.

Generally speaking, in the case of a range ventilation fan, the most important thing for the product is that it not only has excellent exhaust performance, but also is easy to clean.

For this reason, conventional ventilation fans have a structure in which a grease filter is installed inside the hood to collect oil in the exhaust flow.

However, when the frequency of cleaning the grease filter decreases, the oily content that accumulates in the holder that also serves as an oil sump for holding the grease filter overflows from the holder and spreads over the inner surface of the hood, making cleaning more troublesome. there were.

The purpose of the present invention is to improve the structure of the conventional structure in which oil is diffused on the inner surface of the hood, making it troublesome to clean. A lower oil sump is provided at the lower end to prevent oil from unnecessarily spreading outside and into the hood.Secondly, a reinforcing rib is provided on the inner surface of the side wall of the hood, and this rib creates a recess that is oriented in the vertical direction. This recess is used to collect the oil inside the retainer into the lower oil sump.

The details of the configuration will be explained below based on the drawings.

Reference numeral 1 in the figure indicates a ventilation fan for a microwave oven, and a grease filter 4 for collecting oil contained in the exhaust gas generated when cooking with a gas staple 3 is installed inside a hood 2 forming the outside of the ventilation fan 1. .

This grease filter 4 is installed obliquely in front of the exhaust fan 5 in the hood 2, and its lower end is fitted into a U-shaped holding receiver 6 that also serves as an oil sump. A part of it is stored in this holding receiver 6.

However, there is a lot of oil stored in this holding receptacle 6, and it often overflows and drips down the inner wall of the hood.

For this reason, the present invention provides a lower oil sump 7 in which the overflowing oil can be stored again in the lower part of the hood 2.

The lower oil sump 7 is formed by bending the lower end of the hood 2 so as to form a gutter-like shape, but of course, a separate groove-shaped member may be fixed to the inner lower end of the hood 2.

Further, in the present invention, the following configuration is added in order to allow the oil overflowing from the holding receiver 6 described above to fall into the lower oil sump 7 without spreading to the inner wall of the hood 2.

That is, the side wall of the hood 2 is extruded inward to form a plurality of reinforcing ribs 8,8'.

By expanding the plurality of ribs 8° 8' into the hood 2, the concave portion 9 created between the adjacent ribs 8 and 8' is used to direct the overflow from the holding receiver 6 downward. It was meant to be a passageway to guide them.

That is, the upper and lower ends of the recess 9 forming the vertical direction are connected to the overflow portions of both ends of the holding receiver 6, that is, the open portions,
It is also formed so as to communicate with the lower oil sump 7.

In this way, it is possible to prevent oil from spreading into the hood 2 and making it dirty.

In summary, according to the oil collecting device according to the present invention, since the oil passage is formed by the ribs adopted for reinforcement, there is no need to create a new one, which is advantageous in terms of cost.

In particular, the use of this recess 9 prevents oil from spreading to the inner surface of the hood, making it convenient for cleaning, and having the lower oil sump 9 allows more oil collected by the grease filter 4 to be stored, making it easier to clean. cycle can be lengthened, which is of practical benefit.

[Brief explanation of drawings]

Figure 1 of the drawings is a perspective view showing the installation appearance of the ventilation fan, Figure 2 is a central vertical cross-sectional view of the ventilation fan, and Figures 3 and 4 are cross-sectional views of sections X-X and Y-Y in Figure 2. be. 1... Ventilation fan, 2... Hood, 3...
... Range, 4 ... Grease filter, 5
...Exhaust fan, 6...Holding receiver that also serves as an oil sump, 7...Lower oil sump, 8.8'...
-...Rib, 9...Concavity.

Claims (1)

[Scope of Claims] 1. A ventilation fan having a holding holder that also serves as an oil sump for an oil-collecting grease filter in the upper part of the hood, characterized in that a gutter-shaped lower oil sump is provided inside the lower end of the side wall of the hood. Oil collection equipment such as ventilation fans. 2. A plurality of reinforcing ribs are bulged inwardly on the side wall of the hood, and the upper and lower ends of the vertically facing recess formed between the adjacent ribs are connected to the open end part and the lower oil sump. An oil collecting device such as a ventilation fan according to claim 1, characterized in that the oil collecting device is in communication with a ventilation fan or the like.