Exhaust device for cooking

Abstract

To provide an exhaust device for cooking in which the collection rate of contaminated air containing soot and odor generated during cooking has been improved.SOLUTION: An exhaust device 1 for cooking includes a suction port 11, an opening 21, an exhaust blower 2, and a blowout device 71. The opening 21 is provided on an upper surface 31a of a table 31 on which a heating cooker 51 is provided. The suction port 11 communicates with the opening 21. The blowout device 71 includes a blowout blower 22, a blowout path 25, and a blowout part 72. The blowout blower 22 operates in such a manner that the air which has passed the blowout path 25 is blown out as a first blowout flow 100a and a second blowout flow 100b respectively from a first blowout port 74a and a second blowout port 74b. The suction port 11 is positioned in a region between the first blowout port 74a and the second blowout port 74b. The first blowout flow 100a and the second blowout flow 100b blow out respectively so as to form a surface of an air curtain with an angle being separated from the heating cooker with the y direction as a reference.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to cooking exhaust devices. [Background technology]

[0002] Conventionally, a circulation-type cooking exhaust purification device has been known. Patent Document 1 describes an air treatment device that sucks in oily smoke and odors generated when cooking with an electric heating appliance that does not generate carbon dioxide, along with the air, purifies it, and releases it into the room. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-55404 Summary of the Invention [Problem to be solved by the invention]

[0004] The configuration of Patent Document 1 allows airflow to pass freely from the left and right sides of the suction port when the suction hood is viewed from the front, which poses a problem in efficiently sucking in contaminated air.

[0005] Therefore, the present disclosure was inspired by the above-mentioned conventional problems, and aims to provide a cooking exhaust device that has an improved capture rate of air containing oily smoke and odors generated during cooking. [Means for solving the problem]

[0006] To achieve this object, a cooking exhaust device according to one aspect of the present disclosure is a cooking exhaust device including an intake port, an opening, an exhaust fan, and a blow-out device, wherein the opening is provided on an upper surface of a table on which a cooking appliance is provided, the intake port communicates with the opening, an intake air passage is formed between the intake port and the exhaust fan, the exhaust fan operates so that air drawn in through the intake port passes through the intake air passage and is then exhausted to the outdoors, the blow-out device includes the blow-out fan, an outlet path, and a blow-out section, the blow-out section includes a first blow-out section and a second blow-out section, the first blow-out section includes a first main body section and a first outlet, the second blow-out section includes the second main body section and a first outlet, and a second blowing outlet, the blowing fan operates so that air that has passed through the blowing path is blown out as a first blowing flow and a second blowing flow from the first blowing outlet and the second blowing outlet, respectively, the intake port is located in the area between the first blowing outlet and the second blowing outlet, and with the intake port as the reference, the side where the cooking appliance is located is the front side and the side opposite the cooking appliance is the rear side, and on a horizontal plane, the direction from the first blowing outlet to the second blowing outlet is the x direction, and the direction towards the front side and perpendicular to the x direction is the y direction, the first blowing flow and the second blowing flow are each blown out to form the surface of an air curtain at an angle away from the cooking appliance with the y direction as the reference. [Effects of the Invention]

[0007] According to the present disclosure, it is possible to provide a cooking exhaust device with an improved capture rate of polluted air containing oily smoke and odors generated during cooking. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing the configuration of a cooking exhaust device according to a first embodiment. [Figure 2] FIG. 3 is a cross-sectional view showing the cooking exhaust device. [Figure 3] FIG. [Figure 4] FIG. 10 is a perspective view showing a modified example of the cooking exhaust device; DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Example 1 As shown in FIGS. 1 and 2, the intake port 11 of the cooking exhaust device 1 communicates with an opening 21 in the top surface 31 a of the table 31 .

[0010] The table 31 includes a top surface 31a, a front surface 31b, side surfaces 31c, a base 31d, a rear surface 31e, and a storage space 31f. A door 32 is formed in part of the front surface 31b.

[0011] Storage space 31f can be accessed by opening door 32. Storage space 31f is formed between door 32 and rear wall 31g. For example, rear wall 31g separates intake airflow path 91a and storage space 31f.

[0012] Cooking device 51 is disposed, for example, on the front surface 31b side of upper surface 31a, or may be disposed directly above storage space 31f.

[0013] Inlet 11 draws in air containing oil, smoke, and the like generated by cooking using cooking appliance 51.

[0014] The hood 41 includes a visor 41a and a rear wall 41c. The air inlet 11 is provided between the rear wall 41c and the heating portion of the cooking device 51.

[0015] The cooking exhaust device 1 includes an exhaust fan 2 and a blowing device 71.

[0016] The exhaust fan 2 includes a blade 2a, a motor 2b, a casing 2c, a suction surface 2d, and a blowing surface 2e. The blade 2a is connected to the motor 2b. The blade 2a is provided inside the casing 2c. The casing 2c is provided inside the housing 3.

[0017] An intake airflow path 91a is formed between the intake port 11 and the intake surface 2d.

[0018] The downstream side of the blowing surface 2e is a blowing air passage 91b. The blowing air passage 91b is formed by an exhaust duct 92 and the like.

[0019] Exhaust airflow path 91 includes an intake airflow path 91a and an outlet airflow path 91b.

[0020] As shown by air flow 90, air drawn in through intake port 11 passes through intake air passage 91a, intake surface 2d, and outlet surface 2e in that order, and then passes through outlet air passage 91b before being discharged outdoors.

[0021] The air drawn in through the suction port 11 may pass through the oil collecting device 61 before passing through the suction surface 2d.

[0022] The blowing device 71 includes the blowing fan 22 , the blowing path 25 , and the blowing section 72 .

[0023] The blow-out fan 22 includes a blade 22a, a motor 22b, a casing 22c, a suction surface 22d, and a blow-out surface 22e. The blade 22a is connected to the motor 22b. The blade 22a is provided in the casing 22c. The casing 22c is provided in the housing 23.

[0024] The blowing section 72 includes a first blowing section 72a and a second blowing section 72b.

[0025] The first blowing section 72a includes a first main body section 73a and a first blowing port 74a.

[0026] The second blowing section 72b includes a second main body section 73b and a second blowing port 74b.

[0027] An air outlet path 25 is formed between the air outlet surface 22e and the air outlets (first air outlet 74a, second air outlet 74b).

[0028] The air blown out from the blowout fan 22 passes through the blowout path 25, and is then blown out as the blowout flow 100 from the first blowout outlet 74a and / or the second blowout outlet 74b.

[0029] The airflow blown out from the first air outlet 74a flows as a first outlet flow 100a (outlet flow 100) so as to form the surface of the air curtain.

[0030] The airflow blown out from the second air outlet 74b flows as a second outlet flow 100b (outlet flow 100) so as to form the surface of the air curtain.

[0031] As shown in FIG. 3, with air inlet 11 as the reference, the side where cooking device 51 is located is the front side, and the side opposite cooking device 51 is the rear side.

[0032] On a horizontal plane, the direction from the first air outlet 74a to the second air outlet 74b is defined as the x direction, and the direction toward the front side and perpendicular to the x direction is defined as the y direction.

[0033] The first outlet airflow 100a is blown out at an angle θa away from the cooking device 51 with respect to the y direction.

[0034] The second outlet airflow 100b is blown out at an angle θb away from the cooking device 51 with respect to the y direction.

[0035] The angle θa and / or the angle θb is, for example, 5 to 75°, 15 to 75°, or 30 to 60°.

[0036] According to the results of experiments conducted by the inventors, it was most effective when the angles θa and θb were the same and in the range of 30 to 60° (especially around 45°).

[0037] However, these angles may vary depending on the positions at which the first main body portion 73a and the second main body portion 73b are provided. In light of this, the inventors conducted multiple experiments and found that the angle θa and / or angle θb is preferably in the range of 5 to 60°.

[0038] Next, the effects of the cooking exhaust device 1 will be described.

[0039] The contaminated air generated during cooking tends to spread in all directions, so it is necessary to direct the flow of this contaminated air in a specific direction.

[0040] According to the present disclosure, the first outlet flow 100a and the second outlet flow 100b are blown out so as to form the surface of the air curtain. This creates a situation in which it is difficult for contaminated air to cross the surface of the air curtain. As a result, the direction in which the contaminated air can travel is limited. This allows the contaminated air to be sucked in through the suction port 11.

[0041] The details are described below.

[0042] An area sandwiched between first outlet flow 100a and second outlet flow 100b is assumed. Within this area, the vicinity of first outlet 74a and second outlet 74b is defined as the root portion.

[0043] It is difficult for the air in this area to move across the first outlet flow 100a and the second outlet flow 100b.

[0044] The air at the base tends to be guided to join the outlet flow 100 rather than toward the air inlet 11. This flow causes the air in front of the base to be guided toward the rear. As a result, much of the contaminated air generated by the cooking appliance 51 is sucked into the air inlet 11.

[0045] Additionally, the angle θa of the first blown airflow 100a and the angle θb of the second blown airflow 100b are set to be slightly away from the cooking appliance 51. If these angles were set to be closer to the cooking appliance 51, the blown airflows (100a, 100b) might hit a pot or the like placed on the cooking appliance 51. If the blown airflows hit a pot or the like, air turbulence might occur, and the efficiency of capturing contaminated air might decrease.

[0046] In order to prevent such a decrease in collection efficiency, the angles of the first outlet flow 100a and the second outlet flow 100b are set so that they are slightly away from the cooking device 51. (Variation) The following describes the modified examples. In the modified examples, the same components as those in the respective embodiments are given the same reference numerals, and detailed descriptions thereof will be omitted.

[0047] As shown in FIG. 4, the hood 41 includes an eaves 41a, a rear wall 41c, a first lateral wall 42a, and a second lateral wall 42b.

[0048] The first air outlet 74a is provided on the front side of the first lateral wall 42a.

[0049] The second air outlet 74b is provided on the front side of the second lateral wall 42b.

[0050] The blowout path 25 includes a first blowout path 25a and a second blowout path 25b.

[0051] The first outlet path 25a is a path provided inside the first lateral wall 42a.

[0052] The second outlet path 25b is a path provided inside the second lateral wall 42b.

[0053] The air passing through the outlet path 25 branches into a first outlet path 25a and a second outlet path 25b.

[0054] The air that has passed through the first outlet path 25a is blown out from the first outlet 74a as a first outlet flow 100a so as to form the surface of the air curtain.

[0055] The air that has passed through the second outlet path 25b is blown out from the second outlet 74b as a second outlet flow 100b so as to form the surface of the air curtain.

[0056] Even with this configuration, the efficiency of capturing air containing oily smoke and odors generated during cooking can be improved.

[0057] In particular, since the side walls (42a, 42b) are provided, the air inlet 11 in the side direction (x direction) This can further prevent contaminated air from progressing further.

[0058] Below, additional information will be provided regarding each example.

[0059] The housing 3, the hood 41, the eaves 41a, the oil collecting device 61, etc. are not essential because the effects of the present disclosure can be obtained even without these.

[0060] It is sufficient that air inlet 11 communicates with opening 21 in upper surface 31a of table 31. For example, an air inlet (not shown) may be provided above cooking appliance 51, and this air inlet may communicate with opening 21 in upper surface 31a. In this case, cooking exhaust device 1 can also be considered as a hood-type range hood.

[0061] The upper surface 31a of the table 31 does not have to be a single continuous plate or plane. Multiple plates or surfaces may be used, with the plate (surface) on which the cooking device 51 is mounted and the plate (surface) having the opening 21 being placed close to each other, so that they function as a single table, and an object having such a function is also considered to be a type of table 31.

[0062] The first outlet 74a and / or the second outlet 74b may be provided in the form of a slit as an outlet for blowing out the guide flow.

[0063] The surface of the air curtain does not necessarily have to be flat, but may also include curved or three-dimensional surfaces, because an air curtain that is effective in blocking airflow can be formed even with surfaces other than flat surfaces.

[0064] The following items are independent of the scope of the claims. Although specific descriptions may be provided, they are merely examples and do not limit the scope of the claims. (Item 1) A cooking exhaust device (1) including an intake port (11), an opening (21), an exhaust fan (2), and a blowing device (71), The opening 21 is provided on the upper surface 31a of the table 31 on which the cooking device 51 is provided. The suction port 11 communicates with the opening 21, An intake air passage 91a is formed between the intake port 11 and the exhaust fan 2, The exhaust fan 2 operates so that air drawn in through the air inlet 11 passes through the air intake duct 91a and is then exhausted to the outdoors. The blowing device 71 includes a blowing fan 22, a blowing path 25, and a blowing section 72, The blowing section 72 includes a first blowing section 72a and a second blowing section 72b. The first blowing section 72a includes a first main body section 73a and a first blowing port 74a, The second blowing section 72b includes a second main body section 73b and a second blowing port 74b, The blowout fan 22 operates so that the air that has passed through the blowout path 25 is blown out as a first blowout flow 100a and a second blowout flow 100b from the first blowout outlet 74a and the second blowout outlet 74b, respectively; The air inlet 11 is located in a region between the first air outlet 74a and the second air outlet 74b, With reference to the intake port 11, the side where the cooking device 51 is located is the front side, and the side opposite the cooking device 51 is the rear side. On a horizontal plane, if the direction from the first air outlet 74a toward the second air outlet 74b is defined as the x direction, and the direction toward the front side and perpendicular to the x direction is defined as the y direction, then: The first outlet airflow 100a and the second outlet airflow 100b may each be configured to be blown out at an angle away from the cooking appliance with respect to the y direction, so as to form an air curtain surface.

[0065] According to this configuration, the surface of the formed air curtain restricts the direction of travel of contaminated air from the cooking device 51, thereby improving the capture rate of contaminated air.

[0066] Here, "inlet 11 is located in the region between first outlet 74a and second outlet 74b" does not necessarily mean "inlet 11 is on a line connecting first outlet 74a and second outlet 74b." Regarding the region, for example, in Figure 3, the x component of inlet 11 can also be understood to be between the x component of first outlet 74a and the x component of second outlet 74b. In this case, the y components of each are irrelevant. (Item 2) The first outlet airflow 100a and the second outlet airflow 100b may be configured to be blown out at an angle of 5 to 60 degrees away from the cooking device 51 with the y direction as the reference.

[0067] According to this configuration, the surface of the formed air curtain effectively restricts the direction of travel of contaminated air from cooking device 51, thereby further improving the capture rate of contaminated air. (Item 3) The first main body portion 73a and the second main body portion 73b may each be pole-shaped.

[0068] According to this configuration, the surface of the air curtain can be formed flat, which further improves the rate of capturing contaminated air. (Item 4) Equipped with hood 41, The hood 41 includes a rear wall 41c. The rear wall 41c may be configured to be provided on the rear side of the suction port 11 so as to rise upward from the upper surface 31a of the table 31.

[0069] This configuration can prevent contaminated air from flowing rearward beyond the rear wall 41c, thereby further improving the collection efficiency of contaminated air.

[0070] If the intake port 11 is surrounded by the rear wall 41c and the air curtain, the efficiency of capturing polluted air can be further improved.

[0071] The hood 41 may include an eaves 41a, which may be configured to protrude forward from the upper part of the rear wall 41c. (Item 5) The hood 41 includes a first lateral wall 42a and a second lateral wall 42b. The first lateral wall 42a and the second lateral wall 42b are each provided to rise upward from the upper surface 31a of the table 31, The suction port 11 is provided between the first lateral wall 42a and the second lateral wall 42b. The first lateral wall 42a has a first air outlet path 25a therein and forms part of the first main body portion 73a. The second lateral wall 42b has a second outlet path 25b therein and forms part of the second main body portion 73b. The air passing through the blow-out path 25 may be branched into the first blow-out path 25a and the second blow-out path 25b, and then blown out as the first blow-out flow 100a and the second blow-out flow 100b from the first blow-out outlet 74a and the second blow-out outlet 74b, respectively.

[0072] According to this configuration, the side walls (42a, 42b) can prevent contaminated air from flowing in the left-right direction (x direction) of the inlet 11, thereby further improving the collection efficiency of contaminated air.

[0073] If the intake port 11 is surrounded by the rear wall 41c, the side walls (42a, 42b) and the air curtain, the efficiency of capturing polluted air can be further improved.

[0074] While the cooking exhaust device according to the present disclosure has been described above based on the examples, the present disclosure is not limited to the examples. As long as it does not deviate from the spirit of the present disclosure, various modifications conceivable by those skilled in the art to the examples and configurations constructed by combining components of different examples are also included within the scope of the present disclosure. [Explanation of symbols]

[0075] 1. Cooking exhaust system 2 Exhaust fan 2a Feather 2b Motor 2c casing 2d suction surface 2e Blowout surface 3. Housing 11 Intake port 21 Aperture 22 Blower fan 22a Feather 22b Motor 22c casing 22d Suction surface 22e Blowout surface 23 Case 25 Air outlet route 25a First air outlet route 25b Second air outlet route 31 Table 31a Top surface 31b Front 31c side 31d Base 31e rear 31F Storage space 31g back side 32 Doors 41 Food 41a Eaves 41c back wall 42a First side wall 42b Second side wall 51 Cooking machine 61 Oil collection device 71 Blower device 72 Outlet 72a 1st outlet 72b 2nd blowout part 73a 1st body part 73b 2nd body part 74a 1st outlet 74b 2nd outlet 90 Air Flow 91 Exhaust air duct 91a Intake duct 91b Air outlet 92 Exhaust duct 100 Outflow 100a First Outlet 100b 2nd outlet flow θa angle θb angle

Claims

1. A cooking exhaust device comprising an intake port, an opening, an exhaust fan, and a blowing device, the opening is provided on the top surface of a table on which the cooking device is provided, The suction port communicates with the opening, An intake air passage is formed between the intake port and the exhaust fan, the exhaust fan operates so that air drawn in through the air inlet passes through the air intake duct and is then exhausted to the outdoors; The blowing device includes a blowing fan, a blowing path, and a blowing section, The blowing section includes a first blowing section and a second blowing section, the first blowout section includes a first main body section and a first blowout port, the second blowout section includes a second main body section and a second blowout port, the blowout fan operates so that the air that has passed through the blowout path is blown out as a first blowout flow and a second blowout flow from the first blowout outlet and the second blowout outlet, respectively; the air inlet is located in a region between the first air outlet and the second air outlet, With the suction port as a reference, the side where the cooking device is located is defined as the front side, and the side opposite to the cooking device is defined as the rear side, On a horizontal plane, a direction from the first air outlet toward the second air outlet is defined as an x ​​direction, and a direction toward the front side that is perpendicular to the x direction is defined as a y direction. The cooking exhaust device is characterized in that the first outlet flow and the second outlet flow are each blown out at an angle away from the cooking appliance with respect to the y direction so as to form an air curtain surface.

2. 2. The cooking exhaust device according to claim 1, wherein the first outlet flow and the second outlet flow are each blown out at an angle of 5 to 60 degrees away from the cooking device with respect to the y direction.

3. 2. The cooking exhaust device according to claim 1, wherein the first body portion and the second body portion are each pole-shaped.

4. Equipped with a hood, the hood includes a rear wall; 2. The cooking exhaust device according to claim 1, wherein the rear wall is provided behind the air inlet and rises upward from the top surface of the table.

5. the hood includes a first lateral wall and a second lateral wall; the first lateral wall and the second lateral wall are each provided to rise upward from the upper surface of the table, The suction port is provided between the first lateral wall and the second lateral wall, the first lateral wall has a first outlet path therein and forms a part of the first main body portion; the second lateral wall has a second outlet path therein and forms part of the second main body portion; 5. The cooking exhaust device according to claim 4, wherein the air passing through the air outlet path branches into the first air outlet path and the second air outlet path, and is then blown out as the first air outlet flow and the second air outlet flow, respectively.

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