KR20130053774A - Air curtanin device for range hood - Google Patents

Abstract

PURPOSE: An air curtain device of a range hood is provided to maintain agreeable indoor air without stimulation to eyes and skin by automatically controlling a ventilator while stabilizing an air current. CONSTITUTION: An air curtain device of a range hood comprises a body(10), an air supply unit, and a controller(40). The body comprises an air supply fan(12) and an exhaust fan(15). The air supply unit supplies air to the air supply fan through an internal plate(21), a middle plate(23), and an external plate(25). The controller changes a position of an air curtain by adding a spiral air current by the air supply unit to a rising air current by the exhaust fan.

Description

Air curtanin device for range hood {Air curtanin device for range hood}

The present invention relates to an air curtain device of a range hood, and more particularly, to a range hood air curtain device which stabilizes the air flow of the supply air in the vicinity of the face of the user who cooks the product so as not to irritate the eyes and the skin.

In general, the stove hood is installed on the upper side of the heating cooking equipment in the kitchen of a home or a restaurant, and has a function of maintaining a comfortable interior by discharging moisture, smell, smoke, etc. generated during cooking. In addition, there is an attempt to adopt an air curtain technology applied to a refrigerator as a design for enhancing the function of the range hood. In this regard, "Range hood with air curtain part" of Korean Patent Application Publication No. 2006-0039358, "Air curtain type gas range hood in which negative ions are generated" of Korean Patent Publication No. 0536849, and Korean Patent Application Publication No. 007096 Simultaneous grade / exhaust type hood ”and the like are known.

Korean Laid-Open Patent Publication No. 2006-0039358 is a range hood composed of a discharge fan and a filter inside a case, an inlet and an outlet formed on the front and bottom of the case, and a blowing fan provided on the flow path of the inlet and the outlet. The air curtain unit is configured to draw air in the room through the inlet port by using the suction force of the blower fan, and discharge the air downward through the outlet port to generate an airflow to block the air from the countertop with the surrounding air. Suggest. Accordingly, it is expected to maximize the heat and odor emission effect of the hood by generating airflow to block the smell or heat from the surrounding air when cooking food, and to provide a comfortable cooking environment and surrounding environment.

Korean Patent Publication No. 0536849 installs an auxiliary hood having an outlet on the upper side of the main hood having an inlet formed on the bottom thereof, and installs an exhaust fan and an exhaust chamber in the discharge chamber formed inside the main hood and the auxiliary hood. The inside front side of the hood is formed as an indoor air inlet chamber, and an air supply fan hood having an indoor air inlet and an outlet opening is formed on the upper surface and the inner surface, and there is an air supply fan, a vertical injection hole, a horizontal injection hole, and is bent toward the discharge chamber. Afterwards, the inward injection hole is formed, and the negative ion generated in the negative ion generator is discharged through the vertical injection hole, the horizontal injection hole and the inward injection hole formed in the bottom plate, and a general lighting device is installed at the inner rear end of the main hood. . Accordingly, by vertically injecting air from the vertical injection port to form an air curtain to block the spread and scattering of heat and odors to the outside, and to inject heat and odor into the discharge chamber by spraying the air horizontally from the horizontal injection port Expect the effect.

Korean Patent Publication No. 007096 discloses a hood having an exhaust fan, an exhaust port, an intake air supply fan, a first air supply forming an air curtain, and a second air supply leading to an air jet. BLDC motor, LED lamp is formed under the exhaust fan, an electric damper is formed between the exhaust fan and the exhaust port, aluminum anodizing coating to protect the first and second air supply, and intake vent It consists of a coating unit consisting of a ceramic coating for the purpose, and a control unit consisting of air volume button, stop button, lighting button, timer button. Accordingly, the effect of effectively blocking the flow of backflow air and automatically opening and blocking the backflow in non-operation is expected.

However, according to the above-mentioned patent, the air flow is turbulent and the air flow becomes turbulent and the handling conditions are insufficient. It has a problem that causes discomfort.

An object of the present invention for improving the conventional problems as described above, by inducing laminar flow of air in the vicinity of the cooker's face to stabilize the air flow while automatically adjusting the supply and exhaust in accordance with the cooking conditions without irritating the eyes and skin It is to provide a range hood air curtain device to maintain a comfortable indoor air.

In order to achieve the above object, the present invention provides a main body having an air supply fan and an exhaust fan; Air supply means for providing air of the air supply fan through an inner plate, an intermediate plate, and an outer plate installed in the main body; And a controller configured to change the position of the air curtain by adding spiral air flow by the air supply means to the air flow generated by the exhaust fan.

In addition, according to the present invention, the main body is characterized by setting a larger capacity of the exhaust fan than the air supply fan.

In addition, according to the present invention, the inner plate, the intermediate plate, and the outer plate are characterized in that formed in a curved plate.

In addition, according to the present invention is characterized in that the intermediate plate of the air supply means is detachably installed to increase or decrease the quantity of arrangement.

In addition, according to the present invention, the air supply means is characterized in that it comprises an electric damper to vary the air supply amount to the inner air supply, the intermediate air supply, the outer air supply.

In addition, according to the present invention, the controller is characterized in that it comprises a temperature sensor and odor sensor to detect the temperature and smell during cooking.

At this time, the controller increases the air volume by the air supply fan if the signal value of the temperature sensor is more than the set value, and increases the air volume by the exhaust fan when the signal value by the odor sensor is more than the set value, and the air supply means according to the external input It is characterized by varying the wind direction by.

On the other hand, the controller is characterized by changing the position of the air curtain by controlling the wind direction by the air supply means according to the external input.

As described above, according to the present invention, while inducing the laminar flow of air in the vicinity of the cooker's face while stabilizing the air flow automatically adjusts the supply and exhaust in accordance with the cooking conditions to maintain a comfortable indoor air without irritating the eyes and skin have.

1 is a configuration diagram showing a main portion of an air curtain device according to the present invention,
2 is a configuration diagram showing a modification of the air curtain device according to the present invention,
3 is a configuration diagram showing a comparison between the conventional air curtain device of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

According to the present invention is a structure having an air supply fan 12 and an exhaust fan 15 on the main body 10. The main body 10 is installed on the upper side of the heating cooking apparatus and has an air supply port 11 for supplying fresh air outside and an exhaust port 14 for discharging the contaminated air therein. The air supply fan 12 is provided on the air supply port 11, and the air exhaust fan 15 is provided on the air exhaust port 14.

At this time, the main body 10 sets a larger capacity of the exhaust fan 15 than the air supply fan 12. It is advantageous in terms of forming an air curtain to increase the capacity of the exhaust fan 15 rather than the air supply fan 12. That is, when the capacity of the exhaust fan 15 is small, it is difficult for the air flow of the air supply fan 12 to form a spiral shape.

In addition, according to the present invention, the air supply means has a structure for providing the air of the air supply fan 12 through the inner plate 21, the intermediate plate 23, the outer plate 25 provided in the main body 10. The inner plate 21, the middle plate 23, and the outer plate 25 form an inner air supply path 31, an intermediate air supply path 33, and an outer air supply path 35 to generate a spiral airflow.

At this time, the inner plate 21, the intermediate plate 23, the outer plate 25 is preferably formed of a curved plate. The inner plate 21, the intermediate plate 23, and the outer plate 25 are all formed of curved plates having similar radii of curvature, and divide the air supply port 11 into a plurality. The radius of curvature varies depending on the size of the body 10, but it is acceptable to set it in the range of 30 to 60 mm.

At this time, the intermediate plate 23 of the air supply means is preferably detachably installed to increase or decrease the number of arrangements. The inner plate 21 and the outer plate 25 are integrally formed by injection molding of the main body 10, but the intermediate plate 23 is separately injection molded and installed in a range of 2 to 5 pieces. When the intermediate plate 23 is separable, the flow paths such as the inner air supply passage 31, the intermediate air supply passage 33, and the outer air supply passage 35 by the inner plate 21 and the outer plate 25 are subdivided. It is advantageous not only for laminarizing the spiral type airflow of (11), but also for hygienic management because it is convenient to disassemble and clean when accumulating dust or foreign matter. When the flow of external air provided through the air supply port 11 is helically laminarized, the air curtain function is enhanced, and the contact between heat and odor at least on the face of the cooker is significantly reduced.

On the other hand, the air supply means is provided with an electric damper 46 to vary the air supply amount of the inner air supply 31, the intermediate air supply 33, the outer air supply 35. In the case of having three air supply passages 31, 33 and 35, the electric damper 46 is installed at two places as shown in FIG. 1, one side of which opens and closes the inner air passage 31, and the other side is the outer air passage 35. To open and close. However, as a simpler modification of the present invention, the electric damper 46 may be installed at one place as shown in FIG. 2 to open and close the intermediate air supply 33. In any case, when some of the inner side air passage 31, the middle air passage 33, and the outer side air passage 35 are closed by the electric damper 46, the air volume increases to the remaining open portion, and consequently the wind direction of the air flow fluctuates. Function is performed.

In addition, according to the present invention, the controller 40 changes the position H of the air curtain by adding spiral air flow by the air supply means to the air flow generated by the exhaust fan 15. The controller 40 is installed at a convenient position on the front of the main body 10, and implements a manual mode by setting the cooker and an automatic mode by the internal memory and the CPU.

At this time, the controller 40 includes a temperature sensor 42 and an odor sensor 44 to detect the temperature and smell during cooking. The temperature sensor 42 selects one representing a fast response time for a temperature in the range of 50 to 200 ° C. The odor sensor 44 may be applied in a manner of detecting various odors around the real life, but particularly, selects a high resolution for gas generated during food cooking.

On the other hand, the controller 40 of the present invention increases the air volume by the air supply fan 12 when the signal value of the temperature sensor 42 is greater than or equal to the set value, and exhaust fan when the signal value by the odor sensor 44 is greater than or equal to the set value. Implement control to increase the amount of wind by 15. Of course, the appropriate setting range of the temperature sensor 42, the appropriate setting range of the odor sensor 44, and the intensity output range of the air supply fan 12 and the exhaust fan 15 are stored in the memory of the controller 40.

Accordingly, when cooking a lot of smell, the output of the exhaust fan 15 is enhanced to enhance the suction air volume of the exhaust port 14, and when cooking a lot of food, the output of the air supply fan 12 is increased. By reinforcement, the air volume of the air supply port 11 is strengthened. Of course, when the temperature is high and the smell is severely generated, the air supply fan 12 and the exhaust fan 15 are all operated at the maximum output within the set range. In any case, the spiral airflow supplied through the air supply port 11 meets the rising airflow flowing into the exhaust port 14 while being guided to the exhaust port 14 to form an air curtain at the face of the cooker.

Then, the controller 40 controls the wind direction by the air supply means in accordance with the external input to change the position (H) of the air curtain. If the position (H) of the air curtain according to the height of the cooker is not appropriate, when the electric damper 46 is operated by the manual input through the controller 40, the wind direction of the spiral airflow may be changed to match the face of the cooker. That is, the position H is lowered when the amount of air is increased in the outer air supply 35 by the operation of the electric damper 46, and the position H is increased when the amount of air is reduced in the outer air supply 35. Of course, it is preferable to adjust the quantity of the intermediate plate 23 together with the position (H).

According to the conventional method as shown in (a) and (b) of FIG. 3, since such adjustment is impossible at all, the air curtain is insufficient to simply form an air curtain. On the other hand, as shown in FIG. 3 (c), the present invention can maintain comfort in accordance with the physical condition of the cooker since the position H of the air curtain is changed.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It is therefore intended that such variations and modifications fall within the scope of the appended claims.

10: main body 12: air supply fan
15: exhaust fan 21: inner plate
23: middle plate 25: outer plate
31: to inside air supply 33: to intermediate air supply
35: outside air supply 40: controller
42: temperature sensor 44: odor sensor
46: electric damper

Claims (8)

A main body 10 having an air supply fan 12 and an exhaust fan 15;
Air supply means for providing air of the air supply fan 12 through the inner plate 21, the middle plate 23, and the outer plate 25 installed in the main body 10; And
And a controller (40) for varying the position (H) of the air curtain by adding spiral air flow by the air supply means to the raised air flow by the exhaust fan (15).
The method of claim 1,
The main hood 10 of the range hood air curtain device, characterized in that to set a larger capacity of the exhaust fan (15) than the air supply fan (12).
The method of claim 1,
The inner plate 21, the middle plate 23, the outer plate 25 of the range hood air curtain device, characterized in that formed by a curved plate.
The method of claim 1,
The middle plate (23) of the air supply means is a range hood air curtain device, characterized in that detachably installed to increase or decrease the quantity.
The method of claim 1,
The air supply device of the range hood, characterized in that the air supply means is provided with an electric damper (46) to vary the air supply amount of the inner air supply (31), the intermediate air supply (33), the outer air supply (35).
The method of claim 1,
The controller 40 is a range hood air curtain device, characterized in that it comprises a temperature sensor 42 and the smell sensor 44 to detect the temperature and smell during cooking.
The method according to claim 6,
The controller 40 increases the air volume by the air supply fan 12 when the signal value of the temperature sensor 42 is greater than or equal to the set value, and the exhaust fan 15 when the signal value by the odor sensor 44 is greater than or equal to the set value. Range hood air curtain device characterized by increasing the air volume.
The method according to claim 6,
The controller 40 is a range hood air curtain device, characterized in that for changing the position (H) of the air curtain by controlling the wind direction by the air supply means in accordance with an external input.

Images