JPH022060B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a ventilation device installed above kitchen appliances, which collects oily smoke generated during cooking operations in a hood and discharges it outdoors.

(b) Prior Art As a technology prior to the present invention, there is a ventilation system described in Utility Model Publication No. 5006/1983. This ventilation device has a control section formed in a structure that improves the operability of switch operations and improves the smoke collection rate. However, no consideration was given to how to deal with the oil contained in the oil smoke, which adheres to the inside of the hood and flows down.

(c) Object of the Invention The present invention provides a ventilation system that efficiently collects oil that adheres to the inner surface of a smoke collection hood and flows down.

(D) Structure of the Invention The present invention comprises a front panel in which an oil receiving tunnel is formed, an oil sump part formed in the lower part of the front panel, and a smoke collection hood with an open bottom surface that is attached to the front panel. An oil guide section is formed at the lower edge of the smoke collection hood to guide oil to the front panel, and the oil guided by the oil guide section is guided to the oil sump section. The structure is such that oil adhering to the hood can also be collected in an oil reservoir formed in the front panel.

(E) Example The first example and the twelfth example shown in FIGS. 1 to 11
The second embodiment shown in FIGS. and FIG. 13, FIG.
The present invention will be explained based on a third embodiment shown in FIG. 5 and a fourth embodiment shown in FIG.

A first example will be described.

The ventilation system 1 has a frame 2 that is attached to an opening in a room wall.
, an electric motor supported at the center of the frame 2, a blade 4 detachably attached to the rotating shaft of the electric motor with a spinner 3, and a plurality of blades attached to the outdoor opening of the frame 2. a shutter 5, a front panel 6 detachably attached to the indoor side of the frame 2, an oil reservoir 7 attached to the lower part of the front panel 6, and an open bottom attached to the front panel 6. It consists of a smoke collection hood 8. In this embodiment, the spinner 3, blades 4, shutter 5, front panel 6, oil reservoir 7, and smoke collection hood 8 are molded from synthetic resin, and the frame 2 is molded from sheet metal.

The spinner 3 is formed in the shape of a bullet, and has a plurality of recesses 9 formed on its circumferential surface to prevent slipping when it is attached to and detached from the rotating shaft. The front panel 6 is provided with a truss-shaped oil wind tunnel 10 that covers the periphery of the blade 4. A guide portion 11 is formed at the suction side peripheral edge of the oil receiving wind tunnel 10, and a lower portion of the guide portion 11 is open toward the mounting recess 12 of the oil reservoir portion 7.
The inner surface of the recess 12 has a step 13 that tapers downward.
A locking claw piece 14 is formed on the upper surface.
The oil reservoir 7 has a receiver 1 that fits into the recess 12.
5 and a covering part 16 that protrudes from the periphery of the front and lower surfaces of the receiving part 15. The step portion 13 prevents the oil reservoir portion 7 from falling downward, and the locking claw piece 14 prevents the oil reservoir portion 7 from falling off in the forward direction. The front panel 6
The smoke collection hood 8 is located on both sides of the upper front and middle part of the
A locking elongated hole 17 is formed for attaching.

A notch 18 is formed in the upper surface of the smoke collecting hood 8 and in the middle of both rear edges. The smoke collection hood 8
There are hook-like locking pieces 19 on the upper and lower parts of the rear edges on both sides.
is formed. The locking piece 9 is inserted into the locking elongated hole 17.
The smoke collection hood 8 is attached to the front panel 6 by being locked to the front panel 6. When the smoke collecting hood 6 is installed, oily smoke generated from a microwave oven or the like and rising up enters from the lower surface of the smoke collecting hood 8 and reaches the blade 4.
The oily smoke that has not been collected on the lower surface of the smoke collection hood 8 is sucked in and exhausted from the notch 18 and exhausted. The lower edge of the smoke collection hood 8 is formed with an oil guide part 20 projecting inward, and the oil guide part 20 is formed to become lower toward both sides at the lower edge of the front surface. The lower part is lowered toward the front panel 6. Further, the oil guide section 20 has an upper surface inclined toward a corner, as shown in FIG. 9, except for the lower front edge and the rear end portions of both lower edges. Therefore, the oil flowing down the inner surface of the smoke collection hood 8 is received by the oil guide section 20 and flows toward the front panel 6 along the corners of the oil guide section 20. The rear end portions of both lower edges of the oil guide portion 20 are inclined toward the edge as shown in FIG. It extends to part 11. The oil flowing along the corners of the oil guide section 20 spreads out toward the edge at the rear end portion of the oil guide section 20 and is guided to the guide section 11 along the front panel 6. Therefore, oil is guided to the guide section 11 and stored in the oil reservoir section 7. The oil received in the oil receiving tunnel 10 also flows down and is collected in the oil sump 7.

Furthermore, the synthetic resin A forming the spinner 3, blade 4, front panel 6, oil sump 7, and smoke collection hood 8 of this embodiment is molded from ABS resin, PP resin, etc.
Powder B, which does not dissolve together, is mixed into the synthetic resin A. For the powder B, a resin having a higher melting temperature than the synthetic resin A is used, such as a fluororesin. The surface of the synthetic resin A is coated with silicone oil C, etc., which has strong adhesion and is difficult to remove by wiping or washing. The silicone oil C has good adhesion to the synthetic resin A, but has weak adhesion to oily bodies. Said synthetic resin A and powder B
A gap is created at the boundary between the silicone oil C and the silicone oil C, which enters into the gap and turns the synthetic resin A itself into an oil-impregnated resin, thereby improving adhesive flow.

A second embodiment to a fourth embodiment will be explained. Components that are the same as those in the first embodiment are designated by the same reference numerals and names, and their explanations will be omitted.

The second embodiment is different from the guide part 11 in the first embodiment.
A protrusion 21 that comes into contact with the guide part 11 is formed on the end edge of the oil guide part 20 which is projecting at a distance from the oil guide part 20 . Therefore, oil can be guided to the guide portion 11 more reliably.

In the third embodiment, the width of the smoke collection hood 8 is increased, and the smoke collection hood 8 is installed close to both sides of the front panel 6, and the guide portion 11
A guide groove portion 22 is formed facing the direction. Therefore, repair of the smoke collection hood 8 is improved.

In the fourth embodiment, an oil reservoir part 7 is formed over the entire width of the lower part of the front panel 6, so that not only oil flowing down along the oil receiving wind tunnel 10 and the guide part 11 can be collected.
Oil flowing down along the front surface of the front panel 6 can also be received. Therefore, the smoke collection hood 8 can be mounted close to the side edge of the front panel 6. Further, in the embodiment, a protrusion 23 is formed to prevent the flowing oil from flowing to the side surface of the front panel 6.

In the first to third embodiments described above, the oil in the smoke collection hood 8 is guided to the guide part 11 of the front panel 6 and led to the oil reservoir part 7, and in the fourth embodiment, the oil in the smoke collection hood 8 is This guides oil directly to the oil sump section 7.

(F) Effects of the Invention In the present invention, oil adhering to the smoke collection hood is collected by an oil reservoir provided on the front panel, so that oil treatment can be carried out smoothly and efficiently with a simple structure. play.

[Brief explanation of drawings]

Figures 1 to 11 show a first embodiment of the present invention; Figure 1 is a perspective view, Figure 2 is a side view, Figure 3 is a front view, and Figure 4 is a front view of the front panel. , Fig. 5 is a side sectional view of the smoke collection hood, Fig. 6 is a rear perspective view of the oil reservoir, Fig. 7 is an enlarged perspective view of main parts, Fig. 8 is a cross-sectional view of Fig. 3, and Fig. 9 is − in Figure 5.
The sectional view, Figure 10, is the - sectional view of Figure 5, 1st
Fig. 1 is a sectional view of the synthetic resin for molding parts, Fig. 12 is an enlarged perspective view of the main part of the second embodiment, Fig. 13 is an enlarged sectional view of the main part, and Fig. 14 is a front view of the third embodiment. 1
5 is a cross-sectional view taken from FIG. 14, and FIG. 16 is a perspective view of the fourth embodiment. 6...Front panel, 7...Oil sump section, 8...Smoke collection hood, 10...Oil receiving tunnel, 20...Oil guide section.

Claims (1)

[Scope of Claims] 1. A front panel having an oil receiving tunnel formed therein, an oil sump formed at the lower part of the front panel, and a smoke collection hood with an open bottom surface attached to the front panel, A ventilation device comprising: an oil guide section for guiding oil to the front panel; the oil guided by the oil guide section being guided to the oil sump section; 2. The ventilation system according to claim 1, wherein the rear end of the oil guide portion is brought into contact with the periphery of the oil blowing tunnel. 3. The ventilation system according to claim 1, wherein a guide groove extending from the oil guide to the oil receiving tunnel is formed in the front panel.