Description of the Related Art Generally, kitchen ventilation hoods are installed in the kitchen and serve to exhaust combustion gas, smells of <BR> food, steam, etc. , which are generated in cooking, to the outside, thereby preventing air of the kitchen from being contaminated.

Fig. 5 is a side view a conventional kitchen ventilation hood, which is installed in the kitchen.

With reference to Fig. 5, the conventional kitchen ventilation hood 100 is installed above a gas range 200 of the kitchen, and serves to suck combustion gas generated from the

gas range 200 and gas generated in cooking and to exhaust the gas to the outside. The conventional kitchen ventilation hood 100 comprises a suction port 101 which is opposite to the upper surface of the gas range 200, an exhaust fan 102 which is formed within the kitchen ventilation hood 100, and an exhaust port 103 which is connected to the exhaust fan 102 and serves to exhaust the gas to the outside.

However, the aforementioned conventional kitchen ventilation hood 100 has a problem of that the combustion gas generated from the gas range 200 and the gas generated in cooking are not fully exhausted to the outside but partially remain within the kitchen.

Further, the gas remaining indoors contaminates indoor air and disperses smells of food throughout the interior of the kitchen.

Moreover, since air is exhausted to the outside through the conventional kitchen ventilation hood provided in a closed kitchen or room, the relative air pressure of the kitchen or the room is lowered, thereby deteriorating an expulsive power of the kitchen ventilation hood and not effectively exhausting the gas.

SUMMARY OF THE INVENTION Therefore, the present invention has been made in view

of the above problems, and it is an object of the present invention to provide a kitchen ventilation hood, which accelerates its exhaust by dividing the gas exhausted from an exhauster and by discharging the divided gas toward a suction port, thereby maximizing the efficiency of the exhaust action of the kitchen ventilation hood.

It is another object of the present invention to provide a kitchen ventilation hood in which the divided gas is easily transferred from a duct to a discharge port of an exhaust acceleration unit.

It is yet another object of the present invention to provide a kitchen ventilation hood in which the divided gas is horizontally discharged from the discharge port to the suction port.

In accordance with the present invention, the above and other objects can be accomplished by the provision of a kitchen ventilation hood in which an exhaust fan is installed within its case, a suction port is formed on the bottom surface of the case and sucks gas generated from the kitchen, and an exhaust port is formed on the top surface of the case and exhausts the sucked gas to the outside, comprising an exhaust acceleration unit including: a dividing plate being formed on the exhaust port so that the exhaust port is divided; a duct serving as a channel for transferring the divided gas, one end of the duct being

connected to the dividing plate; a chamber connected to the other end of the duct; and a discharge port connected to the chamber and formed on the bottom surface of the exhaust acceleration unit.

Preferably, the chamber may comprise a pair of guide plates for guiding the gas to the discharge port therein.

Further, preferably, the discharge port may comprise a guide jaw for horizontally discharging the gas from the discharge port along the outer surface of the suction port, and the guide jaw may be attached to the bottom surface of the discharge port.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which: Fig. 1 is a perspective view of a kitchen ventilation hood in accordance with an embodiment of the present invention; Fig. 2 is a cross-sectional view of the kitchen ventilation hood in accordance with an embodiment of the present invention; Fig. 3 is a side view of the kitchen ventilation hood,

which is installed in the kitchen, in accordance with an embodiment of the present invention; Fig. 4 is a cross-sectional view of a kitchen ventilation hood in accordance with another embodiment of the present invention; and Fig. 5 is a side view of a conventional kitchen ventilation hood, which is installed in the kitchen.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Now, preferred embodiments of the present invention will be described in detail with reference to the annexed drawings.

Fig. 1 is a perspective view of a kitchen ventilation hood in accordance with an embodiment of the present invention.

As shown in Fig. 1, the kitchen ventilation hood 1 in accordance with the present invention comprises a conventional exhauster 10 and an exhaust acceleration unit 20. The exhauster 10 comprises a case 11, an exhaust fan 12, a suction port 14, and an exhaust port 13. The exhaust fan 12 is installed within the case 11 of the exhauster 10. The suction port 14 is formed on the bottom surface of the case 11 of the exhauster 10 and sucks gas generated from the kitchen. The exhaust port 13 is formed on the top surface of the case 11 of the exhauster 10 and exhausts the sucked gas

to the outside.

The exhaust acceleration unit 20 comprises a dividing plate 21, a duct 22, a chamber 23, a discharge port 24, and a pair of guide plates 25. The dividing plate 21 is formed on the exhaust port 13 of the exhauster 10 and divides the gas exhausted by the exhaust port 13 into two parts. One end of the duct 22 is connected to the dividing plate 21 and one part of the gas divided by the dividing plate 21 flows along the duct 22. One end of the chamber 23 is connected to the other end of the duct 22 within the case 11 of the exhauster 10. The discharge port 24 is formed on the other end of the chamber 23. A pair of the guide plates 25 are installed in the case 11 of the exhauster and guide the gas exhausted from the duct 22 to the discharge port 24.

Herein, the exhaust acceleration unit 20 functions to accelerate the gas generated from the kitchen to be effectively sucked into the suction port 14.

Further, the dividing plate 21 serves to divide the gas exhausted by the exhaust port 13 into two parts so that one part of the exhausted gas'flows into the exhaust acceleration unit 20. Preferably, the divided gas flowing into the exhaust activation unit 20 is 10% to 20% of the total amount of the exhausted gas.

The duct 22 serves as a channel for transferring the gas divided by the dividing plate 21 into the chamber 23.

The chamber 23 serves as a space for collecting the divided gas. Preferably, the chamber 23 is installed within the case 11 of the exhauster 10.

The discharge port 24 serves as an outlet for discharging the gas collected by the chamber 23. Preferably, the discharge port 24 is formed at the front of the bottom surface of the kitchen ventilation hood 1. The reason for this is that the discharge port 24 discharges the collected gas at the front of the bottom surface of the kitchen ventilation hood 1, thereby preventing the gas generated in the kitchen from flowing into a room, and accelerates the gas generated from the kitchen to be effectively sucked into the suction port 14, thereby improving suction force of the suction port 14 caused by the operation of the exhaust fan 12.

The-guide-plates 25 are diagonally installed within the chamber 23 connected to the duct 22 and serve to smoothly transfer the gas discharged from the duct 22 to the discharge port 24.

Therefore, the gas generated from the kitchen is sucked into the suction port 14 by the exhaust fan 12 and then divided into two parts by the dividing plate 21. One part of the divided gas flows along the duct 22 and then is collected in the chamber 23. The collected gas is guided by the guide plates 25 and transferred to the discharge port

24. The transferred gas is discharged via the discharge port 14 at the front of the bottom surface of the kitchen ventilation hood 1. Thereby, the kitchen ventilation hood 1 of this embodiment of the present invention serves to accelerate the gas generated from the kitchen to be easily sucked into the suction port 14.

Therefore, the exhaust acceleration unit 20 improves exhaust force of the exhaust fan 12, thereby maximizing the efficiency of the exhaust action of the kitchen ventilation hood 1.

Fig. 2 is a cross-sectional view of the kitchen ventilation hood in accordance with an embodiment of the present invention.

As shown in Fig. 2, the kitchen ventilation hood 1 in accordance with the present invention comprises the conventional exhauster 10 and the exhaust acceleration unit 20. The exhauster 10 comprises the case 11, the exhaust fan 12 installed within the case 11, the suction port 14 formed on the bottom surface of the case 11, and the exhaust port 13 formed on the top surface of the case 11.

The exhaust acceleration unit 20 comprises the dividing plate 21 of longitudinally dividing the exhaust port 13, the duct 22 connected to the dividing plate 21 outside the case 11 of the exhauster 10, the chamber 23 provided with a pair of the guide plates 25 and connected to

the duct 22 within the case 11 of the exhauster 10, and the discharge port 24 connected to the chamber 23 and serving to discharge one part of the divided gas toward the bottom surface of the kitchen ventilation hood 1.

Herein, the gas divided by the dividing plate 21 is collected in the chamber 23 via the duct 22 and easily transferred to the discharge port 24 by a pair of the guide plates 25. Then, the transferred gas is discharged via the discharge port 24 on the bottom surface of the kitchen ventilation hood 1.

Therefore, the discharge port 24 is preferably formed at the front of the bottom surface of the kitchen ventilation hood 1. The reason for this is that the gas discharged by the discharge port 24 serves as an air curtain for preventing the gas generated from the gas range from flowing into the kitchen or the room and accelerates the gas generated from the gas range to be easily sucked into the suction port 14.

Therefore, the kitchen ventilation hood 1 of the present invention comprising the exhauster 10 and the exhaust acceleration unit 20 discharges a part of the gas, which is exhausted by the exhauster 10, into the kitchen by the exhaust acceleration unit 20, thereby accelerating the gas generated from the kitchen to be easily sucked into the suction port 14, maximizing the efficiency of the exhaust

action of the exhauster 10, and refining an indoor environment of the kitchen.

Fig. 3 is a side view of the kitchen ventilation hood, which is installed in the kitchen, in accordance with an embodiment of the present invention.

As shown in Fig. 3, the arrows represent flow of the gas generated from the gas range 2 in the kitchen. The gas generated from the gas range 2 is sucked into the suction port 14 by the suction force of the exhaust fan 12 of the kitchen ventilation hood 1, and exhausted via the exhaust port 13. The exhausted gas is divided by the dividing plate 21, and a part of the divided gas is collected in the chamber 23 via the duct 22. The collected gas is discharged from the front of the bottom surface of the ventilation hood 1 to the upper surface of the gas range 2 through the discharge port-24.- Herein, the gas generated from the gas range 2 in the kitchen is easily induced toward the suction port 14 by the discharged gas via the discharge port 24, thereby maximizing the efficiency of the exhaust action of the exhauster 10 as well as the kitchen ventilation hood 1, and refining the indoor environment of the kitchen.

Further, the gas discharged from the front of the bottom surface of the kitchen ventilation hood 1 to the upper surface of the gas range 2 serves as an air curtain

for preventing the gas generated from the gas range 2 from flowing into the kitchen or from being dispersed through the kitchen.

Therefore, the discharged gas via the discharge port 24 induces the gas generated from the gas range 2 in the kitchen to be easily exhausted to the outside as well as prevents the gas generated from the gas range 2 from flowing into the kitchen. Thus, the combustion gas generated from the gas range 2 in the kitchen and smells of food generated in cooking are prevented from flowing into the kitchen or from being dispersed throughout the kitchen, thereby refining the indoor environment of the kitchen.

Fig. 4 is a cross-sectional view of a kitchen ventilation hood in accordance with another embodiment of the present invention.

As shown in Fig. 4, the kitchen ventilation hood of another embodiment of the present invention comprises the exhauster 10 and the exhaust acceleration unit 20. The exhauster 10 comprises the case 11, the exhaust fan 12 installed within the case 11, the suction port 14 formed on the bottom surface of the case 11, and the exhaust port 13 formed on the top surface of the case 11.

The exhaust acceleration unit 20 comprises the dividing plate 21 for longitudinally dividing the exhaust port 13, the duct 22 connected to the dividing plate 21

outside the case 11 of the exhauster 10, the chamber 23 provided with a pair of the guide plates 25 and connected to the duct 22 within the case 11 of the exhauster 10, and the discharge port 24 connected to the chamber 23 and serving to discharge one part of the divided gas at the bottom surface of the kitchen ventilation hood 1.

Further, a guide jaw 26 is attached to the tip of the discharge port 24. The guide jaw 26 renders the gas discharged by the discharge port 24 to flow horizontally.

Therefore, in order to horizontally discharge the gas along the outer surface of the suction port 14, the guide jaw 26 is preferably L-shaped.

Herein, the gas discharged by the discharge port 24 horizontally flows toward the suction port 14 by the guide jaw 26, thereby raising the pressure of the outside of the suction port 14 and generating a difference in pressure between the inside and the outside of the suction port 14.

Thus, the gas generated from the gas range 2 is easily sucked into the suction port 14 by the difference in pressure between the inside and the outside of the suction port 14.

The gas generated from the gas range 2 is easily sucked into the suction port 14, thereby improving the expulsive power of the exhaust fan 12 and maximizing the efficiency of the exhaust action of the kitchen ventilation

hood 1.

The guide jaw 26 may be variously modified in shape within the scope and spirit of the present invention.

Preferably, the gas discharged by the discharge port 24 flows horizontally along the outer surface of the suction port 14 by a modification of the guide jaw 26, thereby accelerating the gas generated from the gas range 2 to be easily sucked into the suction port 14.

That is, if the gas is discharged by guide jaw 26 so that the discharged gas flows horizontally along the outer surface of the suction port 14, the gas generated from the kitchen is induced by the discharged gas by the guide jaw 26, thereby being easily sucked into the suction port 14.

Therefore, the aforementioned induction system is generated by the repeated circulation of the divided gas, thereby maximizing the efficiency of the exhaust action of the kitchen ventilation hood 1 and refining the indoor environment of the kitchen.

As apparent from the above description, the present invention provides a kitchen ventilation hood which accelerates its exhaust by dividing the gas exhausted from an exhauster and by discharging the divided gas toward a suction port, thereby maximizing the efficiency of the exhaust action of the kitchen ventilation hood. Therefore, the kitchen ventilation hood of the present invention

entirely removes the gas generated from the kitchen, thereby eliminating bad smells from the kitchen and cleaning indoor air of the kitchen.

Further, the present invention provides a kitchen ventilation hood in which the divided gas is easily transferred from the duct to the discharge port, thereby increasing speed of discharging the gas via the discharging port, accelerating the gas generated from the kitchen to be easily sucked into the suction port, and maximizing the efficiency of the exhaust action of the kitchen ventilation hood.

Moreover, the present invention provides a kitchen ventilation hood in which the divided gas is horizontally discharged from the discharge port to the suction port, thereby raising the pressure around the suction port 14, accelerating the gas generated from the kitchen to be easily sucked into the suction port, and maximizing the efficiency of the exhaust action of the kitchen ventilation hood.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.