JPH0416097Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a ventilation system with a stain prevention plate, and more specifically, the invention relates to a ventilation system with a dirt prevention plate. This invention relates to a ventilation system with a dirt prevention plate that prevents dirt on the rear wall surface.

[Conventional technology]

Conventional ventilation devices generally have a suction port located at the rear of the microwave to suck in oil smoke generated from the microwave during cooking and exhaust it outdoors. For example, Fig. 6 shows a cooking exhaust system shown in Japanese Patent Application Laid-Open No. 131949/1983, which has a suction port at the rear of the cooking table. A rising part 3 is formed at the rear of the cooking table 1 on which the microwave oven 2 is arranged or provided, and the air intake port 4 is inclined toward the side of the microwave oven 2 on the upper surface of the rising part 3, and stands upright in contact with the rear part of the rising part 3. A forward airflow guide plate 6 is provided on the wall 5 above the range 2. A duct 7 is connected to the intake port 4 , and a blower 8 is provided at the exhaust port 9 at the end of the duct 7 to form an exhaust path. It is now being discharged outdoors. In addition, in the figure, 10 and 11 are airflow guide grids, 12 is a skylight installed at the bottom of the microwave oven 2, and 13 is an airflow guide grid.
14 is an opening of this smoke cylinder 13.

[Problem that the invention attempts to solve]

Conventional cooking exhaust devices like this one suck the oil smoke generated during cooking without spreading it upwards, but dirt such as oil scattered behind the range sticks to the wall surface. The disadvantage was that the area around the microwave felt clean because it was left exposed unless it was wiped clean.

The purpose of this invention is to solve these conventional problems, and to efficiently suck up oily smoke generated during cooking through the air intake port at the lower end of the duct that hangs down from the air blower mechanism installed above the oven and exhaust it outdoors. Another object of the present invention is to provide a ventilation device with a dirt prevention plate that allows oil etc. scattered at the rear of the range to adhere to the dirt prevention plate and stores the dirt prevention plate on the back side of the duct to prevent it from being exposed except during cooking. .

[Means for solving problems]

The ventilation device with a dirt prevention plate of the present invention is equipped with an air supply fan above the range, an air blowing mechanism section having a downward discharge outlet, an exhaust fan, and a suction part, and a position near the range where air is removed from the range. The upper end of the duct, which has an intake port that sucks in oil smoke, etc., is connected to the suction part, and a canopy is provided above the intake port to bend the outside air flowing down from the discharge port and suppress the rise of oil smoke, etc., and the back side of the duct is A space is provided between the microwave oven and the opposing wall surface, and a stain prevention plate placed at the rear of the microwave can enter and exit the space.

[Effect]

In the ventilation system with a dirt prevention plate of the present invention, the outside air flowing down from the discharge port by the air supply fan collides with the eaves attached to the duct and bends, and this outside air envelops oil smoke etc. generated during cooking and suppresses the rise. As a result, oil smoke etc. are sucked in through the duct's intake port and discharged outdoors, and during cooking, the stain prevention plate is pulled down from the space on the back of the duct and positioned at the rear of the range to catch scattered oil and other stains. When not cooking, the dirty stain prevention board is stored in the space, exposing the clean wall behind the range.

〔Example〕

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the ventilation device with antifouling plate of the present invention will be described in more detail with reference to preferred embodiments shown in the accompanying drawings.

1 to 4 show a ventilation system 20 with a dirt prevention plate according to an embodiment of the present invention. The ventilation device 20 with a stain prevention plate of this embodiment includes a blower mechanism section 21 installed above the microwave oven in the kitchen. This ventilation mechanism section 21 has an outer box 22 and a partition plate 23 that partitions the inside into two chambers, and an exhaust fan 25 housed in a fan casing 24 is inlet in one of the partitioned chambers. It is accommodated via a plate 26. Exhaust fan 2
5 is driven by an exhaust fan motor 28 attached to the front cover 27 of the outer box 22.

On the other hand, an air supply fan 30 housed in the fan casing 29 is housed in the other partitioned chamber, and is driven by an air supply fan motor 31 attached to the front cover 27 . Top plate 3 of outer box 22
An exhaust elbow 33 and an air supply elbow 34 are attached to the outer box 22, respectively, and a switch attachment case 35 is attached to the lower surface of the outer box 22. This switch mounting case 35 is equipped with various switches 36 and lighting equipment 37, and has an air outlet 38 that blows outside air from the air supply fan 30 onto the face of the cook, and blows it out to the front side of the lower surface and downward. Discharge ports 39 are formed on the rear side of the lower surface.

The air blowing mechanism section 21 configured in this manner has its outer box 22 attached to the wall surface 40 above the cooktop using the mounting screws 4.
1, and the supply/exhaust elbows 34, 33 are connected to the piping duct 42, respectively. Note that a vent cap 43 is attached to the outdoor opening of each piping duct 42.

Incidentally, the outer box 22 of the blower mechanism section 21 has a suction section 44 formed by an exhaust fan 25 on the rear lower surface thereof.
is formed, and the suction portion 44 is connected to a duct 45. The duct 45 hangs down along the wall surface 40 at intervals, and has an air intake port 48 made of a separate member that opens obliquely toward the range 47 on the range table 46 at its lower end. This duct 45 is shown in detail in FIG.

Referring to FIG. 5, an oil reservoir 49 is formed at the bottom of the intake port 48 attached to the lower end of the duct 45. Further, a filter 50 is disposed diagonally within the duct 45.
The upper end of 0 is supported by a hanger 51 attached to the rear wall 45a of the duct, and the lower end is fixed to the front wall 45b of the duct with a thumbscrew 52 together with the intake port 48. Thereby, by removing the thumbscrew 52, the intake port 48 and the filter 50 can be removed. Furthermore, an eaves 53 extending from the front wall 45b is attached to the front side of the duct 45. This eaves 53 is the side wall 45c of the duct 45.
The height of the eaves 53 can be changed by selectively engaging the eaves 54 formed in stages. Note that the eaves 53 may extend to the left and right sides of the duct 45.

A fireproof shutter 56 is installed at the lower end of the duct 45 and is rotatably supported by a support plate 55 attached to the lower end of the duct rear wall 45a. This fire prevention shutter 56 is provided with a fuse 59 fixed with a screw 58 via a mounting plate 57, and a spring 61 is stretched between this fuse 59 and a support plate 60 attached to the duct rear wall 45a, thereby preventing fire prevention. The shutter 56 is being pulled down vertically.
A spring 62 is stretched between the mounting plate 57 and the support plate 55. As a result, when the fuse 59 is blown, the fire shutter 56 is rotated by the spring force of the spring 62 to close the intake port 48. In addition, the code|symbol 63 has shown the pot|pot on the range 47.

Further, a dirt prevention plate 65 is housed in a space 64 between the back surface of the duct 45 and the opposing wall surface.
In other words, the space 64 serves as a dirt prevention board housing section. This stain prevention plate 65 can be moved in and out from the lower end of this space 64, and when this stain prevention plate 65 is pulled down from the space 64, the stain prevention plate 65 is arranged so as to cover the rear wall surface of the range 47. The Rukoto. The lower end of this stain prevention plate 65 is bent into an L-shape as shown in FIG. It is formed. An opening 67 is formed in the lower end surface of the intake port 48 of the duct 45 to which the hook portion 66 is hooked, and the dirt prevention plate 65 is locked to prevent it from falling by itself when it is stored in the space 64. It is something to do.

Next, the operation of the above-mentioned ventilation device with antifouling plate 20 will be explained. First, the dirt prevention plate 65 housed in the back space 64 of the duct 45 is pulled down to cover the rear wall of the range, and the switch 36 is started to rotate the exhaust fan 25 and the air supply fan 30. Then microwave 47 and pot 6
When cooking is performed in step 3, oil smoke and waste gas are sucked into the duct 45 from the intake port 48, pass through the filter 50, rise inside the duct 45, pass through the exhaust fan 25, pass through the elbow 33, and exit from the piping duct 42 to the outdoors. is discharged to. Furthermore, air sucked in from the outdoors through the elbow 34 by the rotation of the air supply fan 30 is blown downward from the discharge port 39 of the switch case 35, hits the eaves 53, and curves in the direction of the arrow. At this time, oil smoke etc. from the pot 63 is removed from the intake port 4.
A part of the oil smoke etc. leaking from the air intake port 8 is enveloped by the air flow to suppress its rise, and therefore all of the oil smoke is sucked in through the intake port 48. In addition, the air flow velocity at the eaves 53 is 0.5 to 0.9 m/S, and the angle of the eaves is 5.
Oil smoke, etc. can be sucked in most efficiently at ~10 degrees Celsius.

In addition, some of the air supplied by the air supply fan 30 is blown out from the air outlet 38 and can be blown onto the face of the cook to relieve the heat during cooking.
Cooking working conditions can be significantly improved.
However, in winter, the air outlet 38 should be closed or
Alternatively, it is preferable to change the direction of the wind to a direction other than the face so that there is no problem even in winter. In addition, when the height dimension of the pot 63 changes, the eaves 53 can be adjusted to the eaves hanging 54 according to the height.

On the other hand, most of the oil smoke sucked into the duct 45 is collected by the filter 50, so that the exhaust air is purified and discharged outdoors. The oil adheres to the oil, flows down the wall surface, and collects in the oil sump 49. Therefore, to dispose of the oil, the intake port 48 and filter 50 can be removed at the same time by removing the thumbscrew 52, so all that is needed is to drain the oil in the oil reservoir 49 and clean or replace the filter 50.

The fire shutter 56 also closes the fuse 5 when high temperature air or flames are sucked in from the intake port 48.
9 is fused, and the spring force of the spring 62 causes the fireproof shutter 56 to rotate about the support plate 55 as shown by the imaginary line in FIG.
8 is opened and closed, flame can be prevented from flowing into the duct 45. The fire shutter 56 can be reset by simply removing the intake port 48, replacing the fuse 59, and hooking the fuse 59 to the spring 61.

Furthermore, the dirt prevention plate 65 that has become dirty due to splashed oil etc. during cooking is raised after cooking is completed and stored in the space 64 on the back of the duct, and the dirt prevention plate 65
A hook portion 66 provided at the lower end is engaged with and held in a lower end opening 67 of the intake port 48 . Thereby, the rear of the range 47 can have a clean wall surface without dirt.

[Effect of idea]

As explained above, according to the ventilation device with a dirt prevention plate of the present invention, oil smoke generated during cooking is efficiently sucked in from the air intake port at the lower end of the duct that hangs down from the air blower mechanism installed above the oven, and In addition, by installing a retractable dirt prevention plate on the back of the duct, dirt such as oil scattered during cooking is caught by the dirt prevention plate that is pulled down to the rear of the microwave, making it possible to remove dirt during cooking times. By storing the dirt prevention board in the dirt prevention board storage area, dirt will not be visible, and by exposing the brand new wall surface, not only the air in the kitchen but also the overall beautification of the wall surface can be improved.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a ventilation system with a dirt prevention plate showing an embodiment of the present invention, Fig. 2 is a front view of the ventilation system with a dirt prevention plate shown in Fig. 1, and Figs.
The figure is an exploded perspective view of a ventilation device with a dirt prevention plate, FIG. 5 is a detailed enlarged sectional view of a duct, and FIG. 6 is a sectional view of a conventional cooking exhaust device. 20... Ventilation device with dirt prevention plate, 21... Air blowing mechanism section, 25... Exhaust fan, 30... Air supply fan, 38... Air outlet, 39... Discharge port, 44
... Suction part, 45 ... Duct, 47 ... Range,
48...Intake port, 50...Filter, 53...
Eaves, 64... Space, 65... Dirt prevention plate,
66...Futsuku department. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) An air blowing mechanism installed above a kitchen range that has an air supply fan, a discharge port that blows air downward, and an exhaust fan and a suction port that sucks air. a duct connected to the suction part of the air blowing mechanism section and having an inlet port for sucking oil smoke etc. from the range installed in a position close to the range; and a dirt prevention plate; By arranging the back surface with a space between it and the opposing wall surface, it is possible to form a dirt prevention plate storage part on the back face, and the dirt prevention board can be stored in the dirt prevention board storage part when not in use. A ventilation device with a dirt prevention plate, which is configured so that it can be pulled out from here downward and placed at the rear of the microwave oven when in use. (2) The duct is installed above the intake port, and has an eaves that curves the air flowing down from the discharge port of the blower mechanism section and suppresses the rise of oil smoke, etc. Claim 1 of the Utility Model Registration Claim Ventilation system with anti-fouling plate.