A range hood system forming an air duct

Abstract

The invention relates to a range hood system capable of forming an air curtain without the use of an additional apparatus.

Description

[0001] A RANGE HOOD SYSTEM FORMING AN AIR DUCT

[0002] Technical Field of the Invention

[0003] The invention relates to a system which increases the efficiency of range hood systems by forming an air curtain.

[0004] State of the Art of the Invention

[0005] The range hood systems prevent the spread of odors from fried foods or foods with intense odors during a cooking phase by withdrawing air by means of a fan, and filter and discharge the oil vapor and odor-causing particles in the air withdrawn, thereby purifying the air and preventing the odor formation. The range hood systems may discharge the filtered air, or blow it back into the room by means of a fan after purifying.

[0006] Air curtains, on the other hand, are a system which serves to maintain the air temperature in an environment and to prevent substances such as dust, vermin, etc. from entering the environment through the air. Air curtains are systems which may keep the air temperature stable in environments which are constantly opened and closed during the day, such as shopping malls, and thus save energy. Today, even if odor insulation devices using air curtains have been created, such as range hoods, they need apparatus to form air curtains such as extra fans, etc. Adding these apparatuses has a disadvantage such as providing extra energy consumption.

[0007] The utility model document with application number 2023 / 002178 intends to increase the efficiency of the range hood systems by forming air curtains. However, the invention mentioned in the document achieve this by means of a fan mounted on a stove. The invention mentioned in the patent document with application number 2023 / 002178 needs an additional fan. In addition, the use of fans in stoves using natural gas may cause various safety problems.

[0008] The utility model document with application number 2019 / 02585 sets forth a utility model which includes an additional fan in the range hood system to form an air curtain in a range hood system. The invention mentioned in the document has disadvantages, such as the need for additional fan-like apparatus to form an air curtain.

[0009] Consequently all the above-mentioned problems have made it necessary to make an innovation in the relevant field.

[0010] Objects and Summary of the Invention

[0011] The main object of the invention is to reduce or completely eliminate the odors which spread to the environment during cooking.

[0012] Accordingly, an air circulation is created by forming an air curtain reducing or eliminating the amount of gaseous fluid passing into the environment by being transferred back to the environment through a duct withdrawn by the range hood. Thanks to this air curtain, the odors generated during cooking will be pushed into the range hood filter and will increase the efficiency of the range hood, thereby ensuring an air circulation.

[0013] Definition of the Drawings of the Invention

[0014] The figures and related descriptions used to better explain the device developed with this invention are below.

[0015] Figure 1 is a schematic cross-sectional view showing the principle of operation of the invention

[0016] Definitions of the Elements / Parts / Features of the Invention

[0017] In order to better explain the device developed with this invention, the parts and features in the figures are numbered and the meaning of each number is given below.

[0018] 1. Range hood

[0019] 10. Primary air duct

[0020] 100. Primary air duct inlet

[0021] 101. Primary air duct outlet 11. Secondary air duct

[0022] 110. Secondary air duct inlet

[0023] 111. Secondary air duct outlet

[0024] 12. Range hood fan

[0025] 13. Range hood air inlet

[0026] 14. Range hood air outlet

[0027] 14. Separation wall

[0028] 2. Air curtain

[0029] 20. Gaseous fluid

[0030] 3. Range hood base

[0031] A. Dining area

[0032] Detailed Description of the Invention

[0033] The subject of the invention relates to a range hood system which may form an air duct without the need for additional apparatus.

[0034] With reference to Figure 1, the range hood (1) system of the invention is configured to direct the gaseous fluids received / withdrawn from a dining area (A). The expression "dining area" (A) refers to a part of the range hood beneath the range hood base (3), more specifically the area to which fume and similar gaseous fluids from the food rise as a result of cooking during use.

[0035] A range hood fan (12) is used to withdraw food fume and similar gaseous fluids into the range hood (1), as described in the present invention. There exists a range hood air inlet (12), preferably provided at the range hood base (3) to enable the range hood fan (12) to withdraw the gaseous fluid from the dining area, wherein a range hood air inlet (12) is located for discharging the gaseous fluid withdrawn from the range hood (1).

[0036] The range hood air inlet (12) and the range hood air outlet (13) are preferably provided on the surfaces of the range hood facing opposite directions to each other.

[0037] In the present invention, a primary air duct (10) is provided, as well as the range hood air inlet (12) and range hood air outlet (13). Here, the primary air duct (10) is arranged such that it collects at least part of the air withdrawn by the range hood fan (12) and passed through the range hood air inlet (12). Here, the primary air inlet (100) of the primary air duct (10) is positioned in the range hood (1) to perform the aforementioned collection process.

[0038] The existing primary air duct (10) also includes a primary duct outlet (101) facing the part where the collected air will be redirected. Here, the primary duct outlet (101) is arranged such that the gaseous fluid withdrawn is directed back to the dining area (A). Preferably a primary duct outlet (101) is provided so as to face the dining area (A) from the range hood base (3). Here, the primary duct outlet (101) is arranged to form an air curtain (2).

[0039] The existing primary air duct (10) may consist of parts perpendicular to each other in Figure 1, or may be curved and linear. The embodiment in Figure 1 has been selected in accordance with the existing range hood contour of the primary air duct (11) and may vary according to the structure of the range hood (1).

[0040] Accordingly, the present invention essentially comprises: at least one range hood air inlet (13) and one range hood air outlet (14), a range hood fan (12) to withdraw gaseous fluids from a dining area (A) through said range hood air inlet (13) to the range hood air outlet (14), a primary air duct (10) comprising a primary air inlet (100) to collect the part of the gaseous fluid withdrawn by the range hood fan (12) and at least one primary air outlet (101) configured to direct the collected gaseous fluid to the dining area (A) or at least part of the surrounding thereof to form an air curtain (2).

[0041] Preferably, a separation wall (15) region is defined between the range hood air outlet (14) and the primary duct inlet (13). The separation wall (15) may be arranged as a surface forming a part of the range hood air outlet (14) as shown in figure 1. In a preferred embodiment, the separation wall (15) is arranged in a curved manner. Here, the curve is preferably provided such that the range hood air outlet (14) is widened. The curve increases the output performance by manipulating the direction of passage of the gaseous fluid withdrawn by the range hood fan (12) through the range hood air outlet (14). In a preferred embodiment, the primary duct outlet (101) is arranged in the form of a longitudinal groove. Thus, a continuous air curtain (2) is formed for at least a part of the dining area (A). For example, the primary duct outlet (101) may be provided in the form of a continuous groove along one side of a square dining area (A). In addition, multiple primary duct outlets (101) may be provided on the same side, however in this embodiment, the air curtain (2) will be discontinuous and the food fume and odor will spread more to the environment.

[0042] In addition, the existing range hood (1) system may be mounted on pipes connected to the chimneys in the houses via the range hood air outlet (14), but it may also include a built-in secondary air duct (11) which corresponds to said pipe. The secondary duct inlet (110) of said secondary duct (11) is arranged so as to connect to the range hood outlet (14), and the secondary duct outlet (111) is arranged so as to connect to the chimney.

[0043] The mode of operation of the present invention is as follows: In the invention, the range hood (1) withdraws and filters the food fume, or similar gaseous fluid (20) from the range hood air inlet (13) by means of the range hood fan (12) therein during cooking and divides the air between the primary air duct (10) and the secondary air ducts (11). The air transferred from the secondary air duct inlet (110) to the secondary air duct is discharged by a pipe, or a similar element, connected to the secondary air duct outlet (111). The primary air duct (10), which provides the technical benefit of the invention, transfers air to the primary air duct (10) through an air duct inlet (100) designed in the form of a bent pipe to provide an air curtain. The air transferred to the primary air duct (10) is blown to a place where the air curtain is desired to be formed through the primary air duct outlet (101). As the air curtain (2) desired to be formed in the range hood (1) systems will increase the efficiency of the range hoods (1) in case that it is positioned in front of a stove, the invention intends to position the air curtain (2) in front of the stove, as can be seen in Figure 1. Therefore, the primary air duct outlet (101) is positioned above the stove so as to be somewhat in front of the stove. While the resulting air curtain (2) pushes the gaseous fluid (20) into the range hood (1), the gaseous fluid (20) filtered in the range hood (1) passes through the primary air duct (10) and is blown into the air curtain (2), thereby providing an air circulation. Due to the fact that the air from the air duct outlet (1) forms an air curtain, the food fume from a pot (5) is transferred to the range hood air inlet (8). Due to that air curtain, the invention provides an advantage to the other range hood systems in terms of efficiency.

Claims

CLAIMS1. A range hood (1) system, characterized in that it comprises: at least one range hood air inlet (13) and one range hood air outlet (14), a range hood fan (12) to withdraw gaseous fluids from a dining area (A) through said range hood air inlet (13) to the range hood air outlet (14), a primary air duct (10) comprising a primary air inlet (100) to collect the part of the gaseous fluid withdrawn by the range hood fan (12) and at least one primary air outlet (101) configured to direct the collected gaseous fluid to the dining area (A) or at least part of the surrounding thereof to form an air curtain (2).

2. A system according to Claim 1, characterized in that it comprises said air duct outlet (101), which is a longitudinal slit.

3. A system according to Claim 1, characterized in that it comprises said air duct outlet (101) which extends at least part of surrounding of the dining area.

4. A system according to Claim 1, characterized in that it comprises a separation wall (15) which divides the gaseous fluid absorbed between the primary air inlet (100) and the range hood air outlet (14).

5. A system according to Claim 4, characterized in that it comprises said separation wall (15), the part of which extends towards the range hood air outlet (14), is provided in a curved manner.

6. A system according to Claim 5, characterized in that it comprises said separation wall (15), the part of which extends towards the range hood air outlet (14), is provided in a curved manner.

7. A system according to any one of the preceding claims, characterized in that it comprises a secondary air duct (11) connected to said range hood air outlet (14).

Images