JPS61122437A - Ventilator - Google Patents

Abstract

PURPOSE:To effectively suck oily gas by a ventilator, and to collect dripping oil by a hanger for a filter, as well as to remove oil content from the gas, by providing a suction part on the upstream side of a gas range, and by hanging the filter on the duct of a suction part. CONSTITUTION:A ventilation mechanism consisting of a ventilating fan 17 and a suction part 37 to suck exhaust gas is provided above a gas range in a kitchen. A duct 38 having a suction opening 41 is provided to the suction part 37. A filter 43 is provided in the duct 38, and the filter 43 is held in a position by a hanger 44. The oil passing through the filter 43 and adhering to the inside wall of a duct flows along the hanger 44 of a filter 43, dripping from the end of a hanger, and is collected by an oil pan 42.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ventilation fan that exhausts oil smoke, steam, exhaust gas, etc. generated during cooking in a kitchen range to the outside.

[Conventional technology]

Conventionally, this type of ventilation fan has generally had a suction port located almost directly above the range, and has a mechanism that sucks up the rising air from the range and discharges it outdoors. However, since the above-mentioned ventilation fan has an inlet at a predetermined height from the range, oily smoke rising from the range tends to spread from the middle, and a large-capacity blower is required to exhaust such oily smoke. Furthermore, it was very difficult to replace or clean the filter used in the ventilation fan because the ventilation fan was located above the user.

Further, FIG. 6 shows a cooking exhaust device as disclosed in, for example, Japanese Unexamined Patent Publication No. 131949/1983, which has a suction port at the rear of the cooking table. In this exhaust system, a gas range 2 is arranged or disposed on the top surface of the cooking table 1, a rising part 3 is formed at the rear of the cooking table 1, and an air intake port 4 is connected to the top surface of the rising part 3 toward the range 2 side. A forward airflow guide plate 6 is provided above the microwave oven 2 on a wall 5 which stands upright in contact with the rear part of the rising part 3. A duct 7 is connected to the intake port 4, and a blower 9 is provided at the exhaust port 8 at the end of the duct 7 to form an exhaust path.
Oily smoke and the like generated during cooking are sucked in through the exhaust port 4 and discharged outdoors through the exhaust port 8. Note that 10. li is an airflow guide grid, 12 is a skylight provided at the bottom of the range 2, 13 is a skyfire forced smoke tube, and 14 is this smoke tube 13.
This is the opening.

[Problem that the invention seeks to solve]

The conventional cooking exhaust device as described above sucks oil smoke generated during cooking without spreading upward, but since the exhaust path is formed on the back of the cooking table 1,
This exhaust path space requires the cooking table l to be brought forward, and there are problems in that the space on the front wall of the cooking table l cannot be used effectively. Also, since the exhaust flow is downward, a large blower is required to perform sufficient exhaust.

This invention was made to solve this problem, and it efficiently sucks the oil smoke generated during cooking from the air intake port at the lower end of the duct that hangs down from the air blower mechanism installed above the microwave. To provide a ventilation fan which can discharge oil adhering to the inner wall of a duct, flow through a predetermined path, drop into an oil reservoir, and collect the oil.

[Means for solving problems]

The ventilation fan according to the present invention includes an air blowing mechanism section having an exhaust fan and a suction section for sucking exhaust air above a kitchen range,
A duct with an intake port for sucking in oil smoke etc. from a pot on the range is connected to the suction part at a position close to the range. A hook for holding the upper part is attached at an angle in the width direction of the rear wall of the duct.

[Effect]

According to this invention, oily smoke generated from a pot or the like on the stove is effectively sucked through the intake port of the duct and discharged outdoors, and the oil in the oily smoke is removed by a filter. The oil that passes through the filter and adheres to the inner wall of the duct flows along the filter, drips from the end, and is collected in an oil sump.

〔Example〕

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a side sectional view of the ventilation fan, FIG. 2 is a front view, and FIG. 3.4 is an exploded perspective view of the ventilation fan. In the figure, reference numeral 15 denotes an outer box for the air blowing mechanism, and the inside of this outer box 15 is partitioned by a partition plate 16. 17 is an exhaust fan housed in one box via an inlet plate 18 and housed in a fan casing 19; 20 is an exhaust fan motor attached to the front cover 21 of the outer box 15; 22 is an air supply fan housed in the other box and housed in a fan casing 23, and 24 is an air supply fan motor attached to the front cover 21. 25 is an exhaust elbow attached to the top plate 26 of the outer box 15, and 27 is an air supply elbow. Reference numeral 28 denotes a switch mounting case, and this case is equipped with a switch 29 and a lighting fixture 30. At the front side of the lower surface of the case 28 is an air outlet 31 for blowing outside air from an air supply fan onto the face of the cook, and at the rear thereof is an air outlet 31. It is provided with a discharge port 32 that blows air downward. 33 is a mounting screw for fixing the outside box 15 of the air blowing mechanism constructed as described above to the wall surface 34 above the cooking table; 35 is a piping duct connected to the above-mentioned air supply/exhaust elbows 26 and 27; This is a pent cap attached to the outdoor opening of the duct 35.

Reference numeral 38 denotes a duct connected to a suction section 37 by an exhaust fan 17 formed on the rear lower surface of the outer box 15 of the blower mechanism section. An intake port 41 made of a separate member and opening diagonally toward 40 is attached.

FIG. 5 is a detailed view of the duct 38, and 42 is the intake port 41.
43 is a filter disposed diagonally in the duct 38; 44d is a hook that supports the upper end of the filter 43;
It is attached to the rear wall 38a at a slight angle to the width direction. Further, the lower end of the filter 43 is connected to the air intake port 41.
It is fixed together with a thumbscrew 45. This is from K.
By removing the thumbscrew 45, the intake port 41 and filter 43 can be removed. 46 is the front wall 38 of the duct 38
The height of the eaves 46 can be changed by selectively engaging eaves 47 provided in stages on the side wall 38c of the duct 38. Reference numeral 48 denotes a fireproof shutter, the lower end of which is rotatably supported by a support plate 49 attached to the lower end of the rear wall of the duct 38. 50 is a nine fuse which is fixed to the fire shutter 48 via a mounting plate 51 with screws 52, and this fuse 50 and the duct rear wall 38a
A spring 54 is stretched between support plates 53 attached to the fire shutter 48 to vertically pull up the fire shutter 48. Reference numeral 55 denotes a spring stretched between the mounting plate 51 and the support plate 49, and when the fuse 50 is blown, the fire shutter 48 is rotated by the spring force of the spring 55 to close the intake port 41. Note that 56 indicates a hanging cabinet disposed on the left and right sides of the blower mechanism section, and 57 indicates a pot on the range 40.

Next, the operation will be explained. First, the switch 29 is turned on to rotate the exhaust fan 17 and the air supply fan 22. When cooking is carried out using the pot 57 in the range 40, oil smoke and waste gas are sucked into the duct 38 from the intake port 41, pass through the filter 43, rise inside the duct 38, pass through the exhaust fan 17, and reach the Ergo 25. It is discharged outdoors from the through pipe duct 35. In addition, the air supply fan 22
Due to the rotation of , air sucked in from outside through the elbow 27 is blown out downward from the outlet 32 of the switch case 28, hits the eaves 46, and curves in the direction of the arrow. At this time, some of the oil smoke and the like from the pan 57 leaking out from the intake port 41 is enveloped by the air flow and is suppressed from rising, so that all of the oil smoke and the like are sucked in from the intake port 41. Eaves 4
6, the air flow velocity is 0.5 to 0.9 m/s, and the angle of the eaves is 5 to 10 degrees.

In addition, some of the air supplied by the air supply fan 22 is supplied to the air outlet 31.
Since it can be blown out and sprayed onto the face of the cook to relieve the heat during cooking, the working conditions for cooking can be greatly improved.

However, in the winter, it is preferable to close the discharge port 32 or change the direction of the wind to a direction other than the face so that there is no problem even in the winter.

On the other hand, the oil smoke sucked into the duct 38 is filtered through the filter 4.
Since most of the exhaust air is collected by the duct 3', the exhaust air is purified and discharged outdoors, but during long-term use, oil adheres to the inner wall of the duct 3'8. Particularly, the oil adhering to the rear wall 38a may drip onto the filter from the hook 44 of the filter 43 and cause the filter 43 to become clogged. So, back wall 3B&
The oil flowing down from the tool 44 gathers at the end along the slope, and can drip from there and be collected in the oil sump 42. This will unclog the filter. Incidentally, the oil in the oil reservoir 42 can be disposed of by removing the thumbscrew 45, and the intake port 41 and the filter 43 can be removed at the same time, so that the oil in the oil reservoir 42 can be drained. Also, the filter can be cleaned and replaced at this time.

In addition, in the fire prevention shirt 48, when high temperature air or flame is sucked from the intake port 41, the fuse 50 is blown.
As a result, the spring force of the spring 55 causes the fire prevention shutter 4 to
8 pivots around the support plate 49 as shown by the imaginary line in FIG. 5 to close the intake port 41, thereby preventing flames from flowing into the duct 38. The fire shutter 48 can be reset by removing the intake port 41, replacing the fuse 50, and hooking the fuse 50 to the spring 54.

〔Effect of the invention〕

As explained above, this invention allows oil smoke etc. generated from a pot or the like on the microwave to be effectively sucked into the duct from the air intake port and discharged outside without being diffused indoors.
In addition, the diagonal hanger that adheres to the inner wall of the duct and supports the filter allows the oil to drip from the end of the tool and be collected in the oil reservoir, so that the oil that drips from the inner wall of the duct can be collected in the oil reservoir. It has the effect of preventing clogging.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of a ventilation fan showing an embodiment of the present invention;
2 is a front view, FIGS. 3 and 4 are exploded perspective views, FIG. 5 is an enlarged sectional view of the duct, and FIG. 6 is a sectional view of a conventional cooking exhaust device. 17...Exhaust fan, 22...Air supply fan, 3
DESCRIPTION OF SYMBOLS 1...Blower outlet, 32...Discharge port, 37...Suction part, 38...Tact, 40...Range, 41...Intake port, 43...Filter, 44... Kakeha ingredients, 46
...Eaves, 50...Fire shutters. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] A blower mechanism is provided above the kitchen stove that has an exhaust fan and a suction section that sucks in the exhaust gas, and a duct that has an intake port that sucks in oil smoke from a pot, etc. on the stove is connected to the suction section at a position close to the stove. The filter is arranged diagonally within this duct, and the hanger attached to the rear wall of the duct to hold the upper part of the filter is installed at an angle in the width direction of the rear wall of the duct. ventilation fan.