JP2003207184A - Air-supply outlet structure of supply and exhaust type kitchen ventilator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air-supply outlet structure for a supply and exhaust type kitchen ventilator with excellent fume collecting efficiency. <P>SOLUTION: In this supply and exhaust type kitchen ventilator (1), an air curtain is formed by blowing off supply air to surround the circumference of cooking stoves (5), (5)..., and smoke, etc., is exhausted outside with the supply air. The air curtain is formed so that it is converged towards a point (O) in forward direction of the passage of exhausted air which passes an exhaust inlet port (19). <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air supply / exhaust type kitchen ventilation device capable of forming an air curtain around a cooking space and efficiently exhausting smoke or the like generated in the cooking space to the outside. Regarding the blowing structure.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 10, a gas table (40) is supplied from an air outlet (42) (42) ... By blowing air and forming an air curtain around the cooking space above the stove (41) (41) ..., the smoke and steam generated in the cooking space are confined in the air curtain and the gas table There is known a ventilation device (43) which is guided to an exhaust suction port of a range hood provided above and discharged to the outside of a room.

[0003]

However, in the case of such a ventilator (43), the exhaust suction port (4
Since 4) must be made larger than at least the area where the air curtain is formed, the range hood tends to be large.

Further, if the air curtain is disturbed by an air flow such as wind and a part of the smoke slightly protrudes from the air curtain, it may not be sucked into the exhaust suction port (44), and the smoke may be collected. It was inefficient.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems and to provide an air supply / blowing structure of a supply / exhaust type kitchen ventilation device having high smoke collection efficiency.

[0006]

In order to solve the above-mentioned problems, the air supply / blowing structure of the air supply / exhaust type kitchen ventilation device of the present invention blows air supply so as to surround the periphery of the hob and surrounds the hob. A supply / discharge type equipped with an air outlet forming an air curtain and an exhaust suction opening opened toward a cooking space above the stove for exhausting smoke and the like generated near the stove together with the air supply to the outside. It is a kitchen ventilation device, wherein the air curtain is formed so as to converge toward a certain point in front of the passage direction of the exhaust gas passing through the exhaust suction port. .

According to another aspect of the invention, there is provided an air supply / blowing structure for a supply / exhaust type kitchen ventilation device, wherein air is blown out so as to surround the periphery of the stove and an air outlet is formed around the stove, and A supply / exhaust type kitchen ventilator provided with an exhaust suction port opened toward a cooking space above the stove for discharging smoke and the like generated near the stove to the outside together with the air supply. The curtain is characterized in that the supply air is formed in a direction in which the supply air spirally rises from the lower side to the upper side while gradually reducing the turning radius and flows into the exhaust gas suction port.

Specifically, the blowout port is provided at a position higher than the upper surface of the gas table provided with the stove. Further, a part or the whole of the air outlet is provided at a height position such that the supplied air does not hit the flame of the stove.
Further, the height position of some or all of the air outlets can be changed.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a supply / discharge type kitchen ventilation device (1) having a supply air blowing function according to a first embodiment of the present invention. This supply and discharge type kitchen ventilation device (1)
Includes a gas table (2) having a supply air blowing structure and an exhaust fan (3) for exhaust.

The top plate (4) of the gas table (2) surrounds the stoves (5), (5) ... Of the gas table (2),
A plurality of air supply nozzles (6) (6) ... Are arranged in a square shape with appropriate intervals. As shown in FIG. 2, each of the air supply nozzles (6) has a nozzle body (8) having a slit-shaped outlet (7) at the upper end and a lower end of the nozzle body (8) which is expanded outward. It is made up of a plate-shaped pedestal (9) that has been taken out and a cylindrical mounting part (10) extending downward from the lower end of the pedestal (9).

Each air supply nozzle (6) is, as shown in FIG.
Insert the mounting part (10) into the opening (11) formed in the top plate (4) of the gas table (2), and attach it so that the lower surface of the pedestal (9) is brought into contact with the top plate (4). Has been. The mounting portion (10) inserted into the opening (11) is composed of the wavy projections (12) (12) formed on the outer surface of the mounting portion (10) and the inner wall (13) of the opening (11). It is difficult for the opening (11) to come off due to frictional force.

The outlets (7) (7) of the nozzle bodies (8) (8) ...
From this, the supply air sent out by the supply air supply device (not shown) stored in the gas table (2) is blown out. And
By this air supply, an air curtain is formed around the stove (5) (5) ....

Since the outlets (7), (7) ... Are formed at the upper end of the nozzle body (8), only the height of the nozzle body (8) corresponds to the top plate (4) of the gas table (2). ) Is placed higher than. Therefore, the top plate of the gas table (2)
The dust of (4) does not fall on the air outlets (7), (7) ..., and the cleanability of the gas table (2) is high. In addition, the food that spilled from the pot, etc. travels along the top plate (4) of the gas table (2) and falls to the air outlets (7) (7) ... It won't clog.

The shape of the air supply nozzle (6) is not limited to the above. For example, as shown in FIG. 4, a circular air outlet (14).
Air supply nozzle (16) having a cylindrical nozzle body (15) having
Can also be considered.

The ventilation fan (3) is attached to the wall surface (17) above the gas table (2). A hood (18) is attached to the wall surface (17) so as to cover the ventilation fan (3). This hood (18) is a stove on the gas table (2).
(5) (5) ... Exhaust air intake opening to the upper cooking space
Smoke generated in the vicinity of the stove (5) (5) ... is sucked into the exhaust suction port (19) and discharged to the outside of the room together with the air supply forming the air curtain. .

As shown in FIG. 1, the air curtain is located at the front in the passage direction of the exhaust gas passing through the exhaust suction port (19) of the hood (18), and more specifically, in the hood (18). It is formed so as to converge toward a point (O) located in the center. That is, as shown in FIG. 3, each outlet (7)
(7) ... Air is being blown toward the convergence point (O).

As described above, the air curtain has the hood (18).
Since it has a shape that converges inward, smoke and the like trapped in the air curtain are also guided into the hood (18) while converging upward together with the air curtain. Therefore, smoke or the like generated around the stove (5) (5) ... can be reliably collected in the hood (18), and the smoke or the like can be efficiently discharged to the outside from the exhaust suction port (19). it can.

The point where the air curtain is converged (O)
Is not limited to the inside of the hood (18), and may be in the forward direction of the exhaust gas passing through the exhaust gas suction port (19).

Further, as shown in FIG. 5, an air supply nozzle (22) having a low height position of the air outlet (21) and an air supply nozzle (24) having a high height position of the air outlet (23) are provided. It may be provided. In this case, from the blowout port (21) at the lower position, blow out a weak supply air so that the flames of the stove (5) (5) ... do not disappear or shake,
Sufficient supply air for forming an air curtain is blown out from the air outlet (23) at a high position.

By doing so, it is possible to prevent the supply of air from the air curtain from striking the flame of the stove (5) (5) ...
Smoke near the top plate (4) can be reliably guided into the air curtain.

Furthermore, the height position of the air outlet of the air supply nozzle may be changeable. For example, the air supply nozzle (25) shown in FIGS. 6 and 7 has a nozzle body (27) having an outlet (26) formed at the upper end and a plurality of teeth (28) (28) formed on the side surface. An unillustrated air supply / blowing device is connected to the pillar portion 29 and the flexible tube 30 attached to the lower end portion of the pillar portion 29.

In this case, the gas table (2) has a column portion.
A drive motor (not shown) having a gear (31) meshing with the teeth (28) (28) of (29) is provided. The height position of the air outlet (26) can be changed by rotating the gear (31) and sliding the column (29) up and down.

Normally, the air supply nozzle (25) is housed in a recess (32) formed in the top plate (4) of the gas table (2), as shown in FIG. In this way, the intake port (26) is arranged so as to be substantially flush with the top plate (4) of the gas table (2). Then, the air supplied from the air supply / blowing device is supplied to the flexible tube (30) and the column (2).
It is blown out from the air outlet (26) of the nozzle body (27) through 9).

Air supply to the air curtain may be increased or
(5) (5) ... If you weaken the flame, the stove (5) (5) ...
The flame of the air is easily affected by the air supply, but in such a case, as shown in FIG.
The height position of (26) is moved upward. This allows
It is possible to move the height position of the air curtain to a height position that does not affect the flame of the stove (5) (5) ....

The air supply nozzle (25) may automatically rise in accordance with the strength of air supply of the air curtain and the size of the flame of the stove (5) (5).

Next, FIG. 8 shows a supply / exhaust type kitchen ventilation device (3) equipped with a supply air blowing structure according to a second embodiment of the present invention.
3) is shown. In the figure, members having the same functions as those in the first embodiment are designated by the same reference numerals.

On the top plate (4) of the gas table (2), as shown in FIG. 9, air supply nozzles (16) (16) having circular outlets (14) (14) ... 5) It is provided so as to surround (5) .... Nozzle body (15) of each air supply nozzle (16) (16)
The inclinations of the parts (15) are set so as to blow out the supply air so as to come into contact with a virtual circle (R) having a point (P) located substantially in the center of the hood (18) as a central point.

Therefore, these nozzle bodies (15) (15) ...
The air supplied from the air outlets (14), (14) of the hood rises spirally from the lower side to the upper side while gradually reducing the turning radius, and flows into the exhaust suction port (19) of the hood (18). A tornado-shaped air curtain is formed in the direction.

Therefore, the air curtains are not blown out from the air outlets (14), (14), and form the air curtains which are not disturbed while cohering with each other, so that the air curtains are stable. Further, due to the vortex converging property of the tornado-shaped air curtain, smoke can be collected more efficiently. Furthermore, even if the distance between the air outlet (14) and the air outlet (14) is large, the air supply rises in a spiral shape, so gaps are less likely to occur in the air curtain and smoke can be collected more reliably. it can.

The present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made to the above embodiment within the scope of the present invention.

[0031]

The air supply / blowing structure of the air supply / exhaust type kitchen ventilation device of the present invention is formed so that the air curtain converges toward a certain point ahead of the passage direction of the exhaust gas passing through the exhaust air inlet. Since the smoke generated around the stove can be converged upward, the smoke can be efficiently guided into the exhaust suction port, and the exhaust suction port can be made small. It is possible to downsize the range hood.

Another aspect of the invention is that the supply air spirally rises from the lower side to the upper side while gradually reducing the turning radius,
An air curtain is formed in the direction of flowing into the exhaust suction port. Therefore, the air curtain can be formed in a tornado shape, interference between the supply air can be avoided, turbulence of the air curtain is less likely to occur, and the air curtain can be stabilized.

Further, the vortex converging property of the tornado-shaped air curtain enables smoke to be collected more efficiently. Furthermore, even if there is a gap between the air outlets, the air supply spirally rises, so there is no gap in the air curtain,
It is possible to collect smoke and the like more reliably.

In addition, since the air outlet is provided at a position higher than the upper surface of the gas table provided with the stove,
The dust does not fall into the outlet and the gas table is easy to clean. In addition, the food spouted from the pot does not fall on the top of the gas table and falls into the air outlet, blocking the air outlet.

Moreover, a part or all of the air outlet is provided at a height position where the supply air to be blown does not hit the flame of the stove, and the flame of the stove is extinguished when the supply air hits the flame of the stove. It does not shake or shake. Furthermore, the height position of some or all of these air outlets can be changed, so depending on the position of the air curtain and the strength of the flame on the stove,
The height position of the air outlet can be adjusted so that the fire of the stove does not go out or sway when the air is hit.

[Brief description of drawings]

FIG. 1 is a perspective view showing a supply / discharge type kitchen ventilation device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing an air supply nozzle having a slit-shaped outlet.

FIG. 3 is a schematic diagram illustrating a direction in which supply air is blown out.

FIG. 4 is a perspective view showing an air supply nozzle having a substantially circular outlet.

FIG. 5 is a schematic diagram showing a gas table provided with two types of air supply nozzles having different height positions of air outlets.

FIG. 6 is a schematic view showing an air supply nozzle of a type in which a blowout port rises upward.

FIG. 7 is a schematic diagram showing a state in which the air outlet is raised.

FIG. 8 is a schematic view showing a supply / discharge type ventilation device that forms a tornado-shaped air curtain.

FIG. 9 is a schematic view showing a state of the gas table of the air supply / exhaust ventilation device as seen from above.

FIG. 10 is a perspective view showing a supply / discharge type ventilation device capable of forming a conventional air curtain.

[Explanation of symbols]

(1) Supply and discharge type kitchen ventilation device (2) Gas table (5) Stove (7) (14) Outlet (19) Exhaust inlet (O) A point in front of the exhaust passage direction

Claims (5)

[Claims] 1. An air outlet that blows air around the stove and forms an air curtain around the stove, and smoke generated near the stove is exhausted to the outside together with the air. Therefore, in the supply-discharge type kitchen ventilation device having an exhaust suction port opened toward the cooking space above the stove, the air curtain is forward in the passage direction of the exhaust gas passing through the exhaust suction port. A supply air supply structure for a supply / discharge type kitchen ventilation device, characterized in that it is formed so as to converge toward a point. 2. An air outlet that blows air around the stove and forms an air curtain around the stove, and smoke generated near the stove is exhausted to the outside together with the air. Therefore, in the air supply / exhaust type kitchen ventilator provided with the exhaust air suction port opened toward the cooking space above the stove, the air curtain is configured such that the air supply gradually changes the turning radius from the lower side to the upper side. An air supply / blowing structure for a supply / discharge type kitchen ventilation device, characterized in that it is formed in a spiral shape while being reduced in size, and is formed in a direction in which it flows into the exhaust air suction port. 3. The air outlet is provided at a position higher than an upper surface of a gas table provided with a stove.
Alternatively, the air supply / blowing structure of the air supply / exhaust type kitchen ventilation device described in 2. 4. The supply / exhaust type kitchen ventilation device according to claim 1, wherein a part or all of the air outlet is provided at a height position such that the supplied air does not hit the flame of the stove. Air supply blowout structure. 5. The air supply / blowing structure for a supply / discharge type kitchen ventilation device according to claim 1, wherein a height position of a part or all of the air outlets can be changed.