JPH0656271B2 - Ventilation - Google Patents

Description

TECHNICAL FIELD The present invention relates to a ventilation device provided above a range installed in a kitchen for ventilation.

[Conventional technology]

FIG. 7 is a cross-sectional view showing a conventional ventilation device disclosed in, for example, Japanese Utility Model Laid-Open No. 57-101824, in which (1) is a casing, and a suction port (2) is formed at the bottom of the casing. A discharge port (3) is formed on the back. (4) is a fan casing (5) provided in this casing, an exhaust blower composed of an electric motor (6) and vanes (7), and (8) is an air supply box provided on the back of the casing, which is a wall. It is attached to (9). Reference numeral (10) is an air supply duct which is provided at an upper portion of the air supply box and penetrates the wall (9) to communicate with the outside, and a weather cover (11) is provided outside the room. (12) is an exhaust duct that connects one end to the discharge port (3), crosses the air supply box (8), penetrates the wall (9) and communicates with the outside, and a weather cover (11) on the outside of the room. Is provided. (1
3) is a sink unit provided in front of the air supply box (8) and provided with an air supply port (14) at the lower part of the front surface, and (15) is a cooking range.

The conventional ventilation device is configured as described above, and operates the exhaust blower (4) when cooking using the range (15). As a result, steam, smoke, etc. rising from the range (15) portion are sucked from the suction port (2) and exhausted to the outside through the exhaust duct (12) and the weather cover (11). Exhausting in this way creates a negative pressure in the room, so that air is supplied from the air supply port (14) via the outdoor air and the weather cover (11), air supply box (8) and sink unit (13). Has become.

[Problems to be Solved by the Invention]

In the conventional ventilation device as described above, the suction port is opened by opening almost the entire lower surface of the casing (1) above the range (15).
Since (2) is provided, smoke and steam containing oil rising from the range (15) adhere to the entire lower surface of the casing (1),
In addition, oil fumes leaking from the casing (1) to the outside will not be removed from the wall (9).
Dirty the surface and spoil the beauty. In addition, the air supply sink unit
Since it is performed from the lower part of (13), there is a problem that the load increases during cooling and heating.

The present invention has been made to solve the above problems,
It is an object of the present invention to provide a ventilation device that has a small load during air conditioning and heating, and is not conspicuously contaminated and does not impair aesthetics.

[Means for Solving the Problems]

The ventilation device according to the present invention is provided with a suction port and a discharge port on the indoor side and the outdoor side, respectively, and an exhaust passage extending from the indoor suction port to the outdoor discharge port and from the outdoor suction port to the indoor discharge port. The air supply passage is provided with a casing having a supply passage provided therein, an exhaust blower provided in the exhaust passage, and an air guide plate provided at a bottom surface of the casing and having a blowout hole communicating with the intake passage. The airflow flowing from the air is discharged from the indoor-side discharge port and the blow-out hole and reaches the indoor-side suction port along the air guide plate.

[Action]

According to the present invention, the air discharged from the indoor discharge port flows along the air guide plate to reduce the influence on the room temperature due to the mixing of the supply air and the room air, and the addition of the air conditioner during cooling and heating is small. In addition, it prevents stagnation of air near the casing and prevents oil and the like from adhering to the casing.

In particular, the blowout holes effectively prevent stagnation of air near the air guide plate at the bottom of the casing.

〔Example〕

1 to 5 are views showing an embodiment of the present invention,
The casing (1) is placed between the hanging cabinets (16) provided above the range (15) and attached to the wall (9), and a suction port and a discharge port are provided inside and outside the room, respectively. Partition plate that doubles as a mounting plate for the exhaust blower (4) and the air supply blower (17)
By (18), the exhaust passage (19) from the indoor suction port (32) to the outdoor discharge port (33) and the air supply passage (20 from the outdoor suction port (34) to the indoor discharge port (31) ) Is formed, and a duct part (21) that forms a part of the exhaust passage (19) and communicates with the indoor suction port (32) is provided on the back side. (22) is a hood part that is part of the casing and is provided in the lower part, and is connected to the partition plate (18) so that the front side becomes lower from the blowout port (22) of the air supply blower (17). An inclined air guide plate (23) is provided inside. (24) is a wind direction changing plate that changes the blowing direction by approximately 180 degrees on the front side of the air guide plate (23). The inner discharge port (31) is directed to the indoor suction port (32), and the supply airflow is provided so as to flow along the wind direction changing plate (24). Reference numeral (26) is a filter provided in the duct portion (21) with an inclination such that the wall (9) side is high and the main body side is low, and a drain receiver (not shown) is provided below. (27) is an exhaust blower (4), an exhaust duct (12), and an air supply blower (17)
This is a communication duct that connects the air supply duct (10) with the air supply duct (10), and an indoor suction port (33) and an outdoor discharge port (34) are formed at the ends thereof. Reference numeral (28) is a panel forming a part of the casing and covering the front surface, and (29) is a switch provided on the front surface of the hood portion (22).

In the ventilator configured as above, the range (1
When cooking is performed using 5), the exhaust blower (4) and the air supply blower (29) are operated by the switch (21).
This raises steam, smoke, etc. from the range (15) part to the hood part (22), and by the air supply flow discharged from the indoor discharge port (31) and the blowout hole (25), the indoor suction port (32) Shed to the side,
Enter the exhaust passage (19) from the indoor suction port (32) and filter (26)
Then, oil, dust, etc. are removed, pass through the communication duct (27), and are discharged outside the room through the exhaust duct (12).

On the other hand, the outdoor air flows from the air supply duct (10) to the air guide plate (2
3) Flows along the air guide plate (23) from the front side of the hood part (22) to the indoor side intake port (32) through the wind direction changing plate (24), and is mixed with the exhaust flow to be discharged. . This indoor discharge port (31)
The air volume supplied from the air is 50% of the total exhaust volume of the hood (22).
With the above settings, the wind speed is faster on the peripheral side of the hood portion (22) than on the central portion. In this way, the air supply flow flows along the air guide plate (23), so that the air guide plate (23) is free of oil dust and the like, and the dirt is not visible to the outside. Since the plate (23) is inclined, the flow of the air supply stream is also smooth. In addition, since the supply airflow is exhausted as it is, it does not affect the indoor air and does not increase the load during cooling and heating. Further, since smoke rising from the air supply is attracted, it becomes difficult for the hood (22) to leak to the outside, and furthermore, the filter (26) is inside the duct (21) and the back side of the casing (1) is As it is inclined so as to be higher, oil dust does not flow down the back surface of the casing (1) and the wall (9) is not contaminated.

In the above embodiment, the indoor discharge port (31) is the casing.
(1) Although it is provided on the front side and the indoor suction port (32) is provided on the rear wall (9) side, as shown in FIG. 6, the indoor discharge port (31) is provided on the casing (1) rear wall ( Provided on the 9) side, the indoor suction port (32)
If the front side is installed, smoke rising from the range (15) will be attracted toward the front of the casing (1), and
The wall (9) between (15) will not be stained by smoke.

In addition, the indoor side discharge port (31) is provided on the entire circumference side part of the hood part (22), or the indoor side suction port (32) is provided in the central part of the hood part (22),
Alternatively, the indoor suction port (32) may be provided only on the back surface or the front surface of the casing (1), and the indoor discharge port (31) may be provided on the other peripheral side portion.

Further, the air supply blower (17) is not necessarily required in the case where sufficient air supply can be obtained by the negative pressure due to the exhaust air of the exhaust air blower (4) because the air tightness of the room is high.

〔The invention's effect〕

As described above, the present invention is provided with the suction port and the discharge port on the indoor side and the outdoor side, respectively, and the exhaust passage extending from the indoor suction port to the outdoor discharge port and from the outdoor suction port to the indoor discharge port. A casing provided with an air supply passage, an exhaust blower provided in the exhaust passage, and an air guide plate provided on the bottom surface of the casing and having an outlet hole communicating with the air supply passage are provided. The airflow flowing from the passage is discharged from the indoor discharge port and the blowout hole and reaches the indoor suction port along the air guide plate, so that the casing and the indoor air guide plate are less likely to be contaminated.

[Brief description of drawings]

1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a side view showing the same installation state, FIG. 3 is a front view of FIG.
FIG. 4 is an exploded perspective view showing the blower (4) (17) part,
FIG. 5 is a perspective view showing a state where the panel (28) is also removed,
FIG. 6 is a sectional view showing another embodiment of the present invention, and FIG. 7 is a sectional view showing a conventional ventilation device. In the drawings, the same reference numerals indicate the same parts, (1) is a casing, (4) is an exhaust blower, (9) is a wall, (17) is an air supply blower, (19) is an exhaust passage, and Reference numeral 20 is an air supply passage, (21) is a duct portion, (23) is an air guide plate, (24) is a wind direction changing plate, (25) is an outlet hole, and (26) is a filter.

Claims (1)

[Claims] 1. A suction port (32) (3) for the indoor side and the outdoor side, respectively.
3) and the discharge ports (31) (34) are provided and the exhaust passage (19) from the indoor side suction port (32) to the outdoor side discharge port (34) and the outdoor side suction port (33) to the above The casing (1) with the intake passage (20) reaching the indoor discharge port (31) inside, the exhaust blower (4) provided inside the exhaust passage (19), and the bottom surface of the casing (1). And an air guide plate (23) having a blowout hole (25) communicating with the air supply passage (20),
The airflow flowing from the air supply passage (20) is discharged from the indoor discharge port (31) and the blowout hole (25) and reaches the indoor suction port (32) along the air guide plate (23). Ventilation device characterized by that.