Cooking exhaust device

Abstract

To provide a cooking exhaust device that improves collection efficiency of air including oily smoke and odors generated at the time of cooking.SOLUTION: A cooking exhaust device 1 comprises: a case 10 to be made adjacent to a rear side surface 27 of a cooking facility 2 comprising a cooker 23 in a top surface 21; a back surface wall 60 located on the side of a back surface of the cooking facility 2 as viewed from the side of a cook using the cooking facility 2, and erected from a case upper surface 11; a straightening part 63 protruding toward the side of a front surface of the cooking facility 2 from the side of a tip of the back surface wall 60; a first suction port 30 provided in the case upper surface 11, for sucking first air below the straightening part 63; and a second suction port 40 provided in a tip of the straightening part 63, for sucking second air above the straightening part 63. The first air sucked from the first suction port 30 is exhausted outdoors, and the second air sucked from the second suction port 40 is discharged indoors.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a cooking exhaust device. [Background technology]

[0002] BACKGROUND ART Conventionally, there has been known a cooking exhaust device for exhausting air containing oily smoke or odors generated by cooking to the outdoors (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2018-54185 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional cooking exhaust devices require an increased exhaust volume in order to exhaust more oily smoke or odor-containing air outdoors. The present invention aims to improve the efficiency of capturing oily smoke or odor-containing air without increasing the exhaust volume of the cooking exhaust device. [Means for solving the problem]

[0005] The cooking exhaust device of the present invention includes a housing for adjoining a side of cooking equipment having a cooking appliance on a top surface, a rear wall located on the rear side of the cooking equipment as seen from the cook using the cooking equipment and erected from the top surface of the housing, a first air inlet provided on the rear wall for drawing in first air from an upper side of the upper space located above the top surface, and a second air inlet provided below the first air inlet for drawing in second air from a lower side of the upper space. The cooking exhaust device also exhausts air drawn in through the first air inlet outdoors and blows air drawn in through the second air inlet indoors. [Effects of the Invention]

[0006] The present invention provides a cooking exhaust device that has improved efficiency in capturing air containing oily smoke or odors generated during cooking. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is an external perspective view of a cooking exhaust device and cooking equipment according to a first embodiment. [Figure 2] FIG. 2 is a top view of the cooking exhaust device and cooking equipment shown in FIG. [Figure 3] 3 is a front view of the cooking exhaust device and cooking equipment as seen from the front in FIG. [Figure 4] FIG. 4 is an enlarged view of the vicinity of the air outlet in FIG. [Figure 5] 5 is a cross-sectional side view of the cooking exhaust device and cooking equipment taken along the line III-III in FIG. 2. FIG. [Figure 6] 6 is a side cross-sectional view of the cooking exhaust device and cooking equipment taken along the line IV-IV in FIG. 2. FIG. [Figure 7] FIG. 7 is an enlarged view of the periphery of the rectifying portion in FIG. [Figure 8] FIG. 8 is an enlarged view of the periphery of the rectifying section according to the first modification. [Figure 9] FIG. 9 is an enlarged view of the periphery of the rectifying section according to the second modification. [Figure 10] FIG. 10 is an enlarged view of the periphery of the rectifying portion according to the third modification. [Figure 11] FIG. 11 is an external perspective view of a cooking exhaust device and cooking equipment according to the fourth modification. [Figure 12] FIG. 12 is a front view of a cooking exhaust device according to the fifth modification. DETAILED DESCRIPTION OF THE INVENTION

[0008] As mentioned above, in conventional cooking exhaust devices, in order to exhaust air containing more oily smoke or odors, it was necessary to increase the exhaust volume of the cooking exhaust device. However, increasing the exhaust volume of the cooking exhaust device may result in negative pressure in the room or a decrease in noise level. Therefore, the present invention aims to exhaust more oily smoke or odor-containing air without increasing the total amount of exhaust air by improving the collection efficiency of air containing oily smoke or odors without increasing the amount of exhaust air outdoors. Note that the collection efficiency here is an index that indicates the proportion of air containing oily smoke or odors relative to the total amount of exhaust air. For example, when the total amount of exhaust air is 500 m 3 / h, of which 300m3 of air contains oily smoke or odors 3 / h, the collection efficiency is 60%. Also, oil smoke refers to steam that is a mixture of water vapor and oil produced during cooking.

[0009] Hereinafter, embodiments will be described with reference to the drawings. Note that the following embodiments show examples of cooking exhaust devices according to the present invention. The numerical values, shapes, materials, components, and positional relationships of the components shown in the embodiments are merely examples and are not intended to limit the scope of the claims. Furthermore, terms indicating relationships between elements, such as perpendicular and parallel, do not only indicate the strict meaning, but also include a range of substantial equivalence, for example, a difference of a few percent. Furthermore, each figure is not necessarily an exact illustration. In each figure, substantially identical components are assigned the same reference numerals, and duplicate explanations may be omitted or simplified.

[0010] The x, y, and z axes shown in the figures are for the convenience of explaining the positional relationships of the components. Unless otherwise specified, the direction indicated by the z-axis arrow points vertically upward. The xy plane is a horizontal plane, which is common to all figures. The direction indicated by the x, y, and z axes is the positive direction of each x, y, and z axis, and the opposite direction is the negative direction. (Embodiment 1) FIG. 1 is an external perspective view of a cooking exhaust device 1 and cooking equipment 2 according to a first embodiment. As shown in FIG. 1, the cooking exhaust device 1 is used in combination with the cooking equipment 2. The cooking exhaust device 1 and cooking equipment 2 are installed together facing the living room or dining room, creating a so-called face-to-face kitchen. Face-to-face kitchens include island kitchens and peninsula kitchens. For ease of explanation, the drawings in the first embodiment show a gap between the cooking exhaust device 1 and cooking equipment 2. In other words, the cooking exhaust device 1 and cooking equipment 2 are positioned adjacent to each other. Note that "adjacent" includes both cases where the cooking exhaust device 1 and cooking equipment 2 are positioned in contact with each other and cases where there is a small gap between the cooking exhaust device 1 and cooking equipment 2.

[0011] Cooking exhaust device 1 is a type of so-called ventilation device that exhausts air containing oily smoke or odors generated during cooking to the outdoors. Cooking exhaust device 1 captures air containing oily smoke or odors generated from cooking appliance 23 provided on top surface 21 of cooking equipment 2, as well as the air surrounding cooking appliance 23, and exhausts it from indoors to outdoors. Strictly speaking, cooking exhaust device 1 does not exhaust all of the air it draws in, but rather blows at least a portion of the air indoors, but this will be described in more detail below.

[0012] The cooking exhaust device 1 includes a housing 10 and a rear wall 60.

[0013] The housing 10 has a hollow, substantially rectangular parallelepiped shape. The interior of the housing 10 is in communication with the interior of the rear wall 60 (see FIG. 5, etc.). The housing 10 has a front surface 12, a right side surface 13, a rear surface 14, and a left side surface 65. It has a surface 15, a bottom surface 16, and a housing top surface 11.

[0014] The front face 12 is one surface on the front side (negative side of the y-axis) of the housing 10, and faces the back face 14 across the inside of the housing 10. The front face 12 is one surface that is adjacent to the rear side face 27 of the cooking equipment 2 having the cooking device 23 on the top face 21.

[0015] The right side surface 13 is one surface on the right side (positive side of the x-axis) of the housing 10, and faces the left side surface 15 across the inside of the housing 10. If the facing kitchen is an island kitchen, the right side surface 13 is the surface that does not contact the wall of the house. If the facing kitchen is a peninsula kitchen, either the left side surface 15 or the right side surface 13 is the surface that contacts the wall of the house.

[0016] The rear surface 14 is one surface on the rear side (positive side of the y-axis) of the housing 10, and faces the front surface 12 across the inside of the housing 10.

[0017] The left side surface 15 is a surface on the left side (negative side of the x-axis) of the housing 10, and faces the right side surface 13 across the interior of the housing 10. If the counter-style kitchen is an island kitchen, the left side surface 15 is a surface that does not contact the wall of the house. If the counter-style kitchen is a peninsula kitchen, either the left side surface 15 or the right side surface 13 is a surface that contacts the wall of the house.

[0018] The bottom surface 16 is one surface on the lower side (negative side of the z-axis) of the housing 10, and faces the housing top surface 11 via the inside of the housing 10. The bottom surface 16 is the surface that comes into contact with the floor surface of the house.

[0019] Housing top surface 11 is one surface on the upper side (positive side of the z-axis) of housing 10, and faces bottom surface 16 across the inside of housing 10. Housing top surface 11 is provided with a first air inlet 30.

[0020] The first suction port 30 is an opening provided on the upper surface 11 of the housing. The first suction port 30 communicates the inside and outside of the housing 10 via this opening. As will be described in detail later, the first suction port 30 is an opening for sucking in first air EA below the rectifying section 63 and discharging it to the outdoors. The detailed configuration of the first suction port 30 and the first air EA will be described later.

[0021] The rear wall 60 is a hollow structure that stands vertically upward (toward the positive side of the z-axis) from the upper surface 11 of the housing. The rear wall 60 is located on the rear side of the cooking equipment 2 when viewed from the side of a cook using the cooking equipment 2. The interior of the rear wall 60 communicates with the interior of the housing 10 (see FIG. 5). The rear wall 60 includes a front surface 61, a straightening section 63, and a second air inlet 40.

[0022] The front surface 61 is one surface on the front side (cooker side) of the rear wall 60. The front surface 61 is a surface that is approximately perpendicular to the housing top surface 11. The front surface 61 is provided with the air outlet 50.

[0023] The air outlets 50 are openings provided in the rear wall 60. More specifically, the air outlets 50 are openings provided on both ends of the first air inlet 30, and blow out the air drawn in from the second air inlet 40. In other words, the air outlets 50 are provided on both sides of the first air inlet 30. The air outlet 50 includes an air outlet angle setting unit 51 that sets the direction in which the air is blown out, which will be described later together with the detailed configuration of the air outlet 50.

[0024] The rectifying section 63 is a hollow structure that protrudes from the tip side in the erection direction of the rear wall 60 toward the front side (the cook's side) of the cooking equipment 2. In other words, the rectifying section 63 protrudes from the upper end of the front surface 61 toward the front side of the cooking equipment 2 and is provided to cover the housing upper surface 11. The rectifying section 63 is provided to keep air containing oily smoke or odors generated by cooking below the rectifying section 63, thereby more reliably sucking this air into the first air inlet 30 and exhausting it outdoors, as will be described in detail below.

[0025] The second air inlet 40 is an opening provided on the tip side of the airflow rectifying section 63. In other words, the second air inlet 40 is an opening provided at one end of the airflow rectifying section 63 on the front side of the cooking appliance 2. The second air inlet 40 is provided above the first air inlet 30 and the cooking device 23. As will be described in detail later, the second air inlet 40 draws in air that is at least above the airflow rectifying section 63. The air drawn into the second air inlet 40 is blown out from the air outlet 50.

[0026] The cooking equipment 2 is used by a cook to mainly cook food. The cooking equipment 2 has, for example, a substantially rectangular parallelepiped shape. The cooking equipment 2 has a top surface 21, a bottom surface 22, a front side surface 24, a right side surface 26, a rear side surface 27, and a left side surface 28.

[0027] Top surface 21 is a surface that corresponds to the upper end of cooking equipment 2, and in this embodiment, is provided at the same height as housing upper surface 11. Top surface 21 has a substantially rectangular shape when viewed from above (from the perspective of viewing cooking exhaust device 1 in the direction of arrow T in FIG. 1). Top surface 21 is also a surface that faces bottom surface 22. Top surface 21 is a surface that is substantially perpendicular to front side surface 24, right side surface 26, rear side surface 27, and left side surface 28. Top surface 21 is provided with cooking device 23.

[0028] Cooking device 23 is a part that heats cooking utensils such as pots placed in cooking device 23. Cooking device 23 may be any of a gas stove, an electric cooker, or an induction cooker. Cooking device 23 has a typical three-burner configuration, but is not limited to this and may be, for example, a one-burner or two-burner stove. Cooking device 23 is configured with cooking devices 23a, 23b, and 23c.

[0029] Cooking appliance 23a is disposed on the negative side of the x-axis relative to cooking appliance 23b. In other words, cooking appliance 23a and cooking appliance 23b are arranged side by side along the x-axis. Cooking appliance 23a is disposed closer to the front of cooking appliance 2 (negative side of the y-axis) than cooking appliance 23c.

[0030] Cooking appliance 23b is disposed on the positive side of the x-axis relative to cooking appliance 23a. In other words, cooking appliance 23a and cooking appliance 23b are arranged side by side along the x-axis. Cooking appliance 23b is disposed closer to the front of cooking appliance 2 (negative side of the y-axis) than cooking appliance 23c.

[0031] Cooking device 23c is provided on the rear side (positive side of the y-axis) of cooking devices 23a and 23b. In other words, cooking device 23c is provided closer to cooking exhaust device 1 than cooking devices 23a and 23b. Cooking device 23c is also located between cooking devices 23a and 23b when viewed from the front (from the perspective of viewing cooking exhaust device 1 in the direction of arrow S in FIG. 1). In other words, cooking device 23c is provided between cooking devices 23a and 23b in the x-axis direction.

[0032] The bottom surface 22 is a surface that corresponds to the lower end of the cooking equipment 2 and is a surface that faces the top surface 21. The bottom surface 22 is also a surface that comes into contact with the floor surface of the house.

[0033] The front side surface 24 is one of the front surfaces of the cooking equipment 2, and faces the rear side surface 27 across the interior of the cooking equipment 2. A cook stands closer to the front side surface 24 when using the cooking equipment 2. In other words, a cook stands on the front side surface 24 side when using the cooking equipment 2. The front side surface 24 is provided with doors 25a and 25b.

[0034] The door 25a is provided on the left side surface 28 of the front side surface 24. The door 25a opens and closes by rotating around the boundary line between the door 25a and the left side surface 28. When the door 25a is opened, This allows the storage section 29 to communicate with the outside of the cooking equipment 2.

[0035] Door 25b is provided on the right side surface 26 side of front side surface 24. Door 25b opens and closes by rotating around the axis of the boundary line between door 25b and right side surface 26. When door 25b is opened, it connects storage section 29 with the outside of cooking appliance 2.

[0036] The storage section 29 is a part of the internal space of the cooking equipment 2, and is a space capable of storing, for example, cooking utensils.

[0037] The right side surface 26 is the surface that faces the left side surface 28 across the interior of the cooking equipment 2. Specifically, if the counter-style kitchen is an island kitchen, the right side surface 26 is the surface that does not contact the wall of the house. If the counter-style kitchen is a peninsula kitchen, either the left side surface 28 or the right side surface 26 is the surface that contacts the wall of the house.

[0038] The left side surface 28 is the surface that faces the right side surface 26 across the interior of the cooking equipment 2. Specifically, if the counter-style kitchen is an island kitchen, the left side surface 28 is the surface that does not contact the wall of the house. If the counter-style kitchen is a peninsula kitchen, either the left side surface 28 or the right side surface 26 is the surface that contacts the wall of the house.

[0039] Next, the detailed configuration of the first air inlet 30 will be described with reference to Fig. 2. Fig. 2 is a top view of the cooking exhaust device 1 and the cooking equipment 2 as seen from above in Fig. 1 .

[0040] The first suction port 30 has a substantially rectangular shape in a top view. The first suction port 30 is provided so that its rear end (one side) shares the front surface 61 of the rear wall 60 in a top view. That is, the distance between the first suction port 30 and the front surface 61 in a top view is 0 mm, but is not limited to this. The distance between the first suction port 30 and the front surface 61 in a top view may be, for example, about 1 mm to 30 mm. The first suction port 30 is provided with a predetermined distance D2 between its front end (one side) and the front surface 12 of the housing 10. The predetermined distance D2 is, for example, about 10 mm to 50 mm. The length D1 of the first suction port 30 in the y-axis direction is, for example, about 10 mm to 50 mm. The width W1 of the first suction port 30 in the x-axis direction is, for example, about 450 mm to 600 mm. In other words, both ends of first suction port 30 in the x-axis direction are located further outward from cooking exhaust device 1 than both ends of cooker 23. More specifically, in the x-axis direction, the left end of first suction port 30 is located to the left of the left end of cooker 23a (negative side of the x-axis), and the right end of first suction port 30 is located to the right of cooker 23b (positive side of the x-axis). Furthermore, first suction port 30 is located with a predetermined distance D3 between the center of first suction port 30 in the y-axis direction and the center of cooker 23c in the y-axis direction. The predetermined distance D3 is, for example, approximately 40 mm to 100 mm.

[0041] Furthermore, in the present embodiment, first suction port 30 has a generally rectangular shape with its elongated dimension in the x-axis direction, but there are no particular limitations on the opening shape, number of openings, arrangement, etc. of first suction port 30. For example, multiple circular openings may be arranged side by side in any direction (for example, the x-axis direction or the y-axis direction), or multiple polygonal openings may be arranged side by side in any direction (for example, the x-axis direction or the y-axis direction).

[0042] Next, the detailed configuration of the second air inlet 40 will be described with reference to Fig. 3. Fig. 3 is a front view of the cooking exhaust device 1 and the cooking equipment 2 as seen from the front in Fig. 1.

[0043] The second air inlet 40 is provided above the first air inlet 30 and the air outlet 50. In other words, the second air inlet 40 has a predetermined gap between the lower end 69 of the second air inlet 40 and the upper surface 11 of the housing. The second air inlet 40 is provided with a distance H5 therebetween. The distance H5 is, for example, approximately 300 mm to 400 mm. The second air inlet 40 is an opening that has a substantially rectangular shape when viewed from the front. In other words, the second air inlet 40 is an opening that has a predetermined length W3 in the x-axis direction and a predetermined height H4 in the z-axis direction. The predetermined length W3 is, for example, approximately 450 mm to 600 mm, and the predetermined height H4 is, for example, approximately 10 mm to 50 mm. Both ends of the second air inlet 40 in the x-axis direction are located further outward of the cooking exhaust device 1 than the air outlet 50. In other words, the left end (negative side of the x-axis) of the second air inlet 40 is located to the left (negative side of the x-axis) of the air outlet 50, and the right end (positive side of the x-axis) of the second air inlet 40 is located to the right (positive side of the x-axis) of the air outlet 50. Furthermore, both ends of second air inlet 40 in the x-axis direction are located further outward from cooking exhaust device 1 than both ends of cooker 23 (see FIG. 2). In other words, the left end (negative side of the x-axis) of second air inlet 40 is located to the left (negative side of the x-axis) of cooker 23a, and the right end (positive side of the x-axis) of second air inlet 40 is located to the right (positive side of the x-axis) of cooker 23b. As will be described in detail later, second air inlet 40 has an upper end 68 and a lower end 69.

[0044] Next, the detailed configuration of the air outlet 50 and the air outlet angle setting unit 51 will be described with reference to Figures 3 and 4. Figure 4 is an enlarged view of the periphery of the air outlet 50 in Figure 2.

[0045] As shown in FIG. 3, air outlet 50 is a substantially rectangular opening provided on front surface 61 of rear wall 60, and blows out air drawn in from second air inlet 40 indoors. Air outlet 50 has a vertical height H1 (z-axis direction) of, for example, about 200 mm to 300 mm. In this embodiment, there is a predetermined distance H2 between the upper end of air outlet 50 and the upper end of front surface 61 (the lower end of airflow rectification section 63). The predetermined distance H2 is, for example, about 0 mm to 50 mm. The lower end of air outlet 50 has a predetermined distance H3 between it and housing upper surface 11. The predetermined distance H3 is, for example, about 0 mm to 25 mm. In other words, when cooking appliance 5 is installed in cooking appliance 23 (see FIG. 5), the lower end of air outlet 50 is preferably located below top portion 6 of cooking appliance 5. In other words, the lower end of the air outlet 50 is preferably located at approximately the same height as the first air inlet 30 (housing upper surface 11) in the vertical direction (z-axis direction). Note that "approximately the same height" here refers to a state in which the predetermined distance H3 is, for example, approximately 0 mm to 5 mm. The width W2 of the air outlet 50 in the x-axis direction is, for example, approximately 20 mm to 50 mm. In other words, both ends of the air outlet 50 are located closer to the inside of the cooking exhaust device 1 than both ends of the second air inlet 40 in the x-axis direction. The air outlet 50 is configured with an air outlet 50a and an air outlet 50b.

[0046] 4, the right end La of the air outlet 50a is located to the left (negative side of the x-axis) of the left edge of the first air inlet 30. In other words, the air outlet 50a is located outside (on the left side of) the first air inlet 30 in the x-axis direction.

[0047] Furthermore, the left end Lb of the air outlet 50b is located to the right (positive side of the x-axis) of the right edge of the first air inlet 30. In other words, the air outlet 50b is located further outside (to the right) of the cooking exhaust apparatus 1 than the first air inlet 30. In other words, the air outlet 50 is located further outside of the cooking exhaust apparatus 1 than the first air inlet 30 in the x-axis direction. In other words, the air outlet 50 is configured to prevent the air blown out from the air outlet 50 from being directly sucked into the first air inlet 30.

[0048] The blowing angle setting unit 51 is a plate-like member provided to adjust the blowing angle of the air blown out from the air outlet 50. As shown in Fig. 3, the vertical height of the blowing angle setting unit 51 is approximately the same as the height H1 of the air outlet 50 in the vertical direction (z-axis direction). The blowing angle setting unit 51 is configured to have a blowing angle setting unit 51a and a blowing angle setting unit 51b. It is done.

[0049] As shown in FIG. 4, the air outlet angle setting unit 51a is provided so as to incline to the right as it moves from the air outlet 50a toward the rear surface 14. Specifically, the air outlet angle setting unit 51a is provided so that the angle θ1 formed between the plate surface 52 of the air outlet angle setting unit 51a and the left side surface 15 (or left side surface 28) is approximately 45°. In other words, the angle θ2 formed between the traveling direction of the air blown out from the air outlet 50a (the direction of arrow A) and an imaginary extension line P of the left side surface 28 is also approximately 45°. In other words, the air outlet 50a blows air toward the front side of the air outlet 50a (the cook's side) and toward the left side (outside) of the cooking appliance 2 by the air outlet angle setting unit 51a. Furthermore, θ1 and θ2 do not necessarily have to be 45° and may be, for example, approximately 30° to 60°.

[0050] The imaginary extension line P is an imaginary straight line extending in the positive direction of the y-axis from the left side surface 28 of the cooking equipment 2. In other words, the imaginary extension line P can be said to be a line along the y-axis direction.

[0051] As shown in FIG. 3, the air outlet angle setting unit 51b is provided so as to incline leftward from the air outlet 50b toward the rear surface 14. Specifically, the air outlet angle setting unit 51b is provided so that the angle θ3 formed between the plate surface 53 of the air outlet angle setting unit 51b and the right side surface 13 (or right side surface 26) is approximately 45°. As a result, the angle θ4 formed between the traveling direction of the air blown out from the air outlet 50b (the direction of arrow B) and an imaginary extension line Q of the right side surface 26 is also approximately 45°. In other words, the air outlet 50b blows air toward the front side of the air outlet 50b (the cook's side) and toward the right side (outside) of the cooking equipment 2 by the air outlet angle setting unit 51b. Note that θ3 and θ4 do not necessarily have to be 45° and may be, for example, approximately 30° to 60°.

[0052] The imaginary extension line Q is a line extending in the positive direction of the y-axis from the right side surface 26 of the cooking equipment 2. In other words, the imaginary extension line Q can be said to be a line along the y-axis direction.

[0053] Next, exhaust fan 35 and circulation fan 45 will be described with reference to Figures 5 and 6. Figure 5 is a cross-sectional side view of cooking exhaust device 1 and cooking equipment 2 taken along the line III-III in Figure 2. Figure 6 is a cross-sectional side view of cooking exhaust device 1 and cooking equipment 2 taken along the line IV-IV in Figure 2.

[0054] The cooking exhaust device 1 includes an exhaust fan 35 and a circulation fan 45.

[0055] As shown in FIG. 5, the exhaust fan 35 is provided in an air passage connecting the first air inlet 30 and the outdoor OT. In other words, the exhaust fan 35 is provided inside the housing 10. The exhaust fan 35 is a so-called fan that generates an airflow by rotating a fan. The exhaust fan 35 generates an airflow in a direction from the first air inlet 30 toward the outdoor OT. The airflow volume of the exhaust fan 35 is, for example, 250 m 3 / h~350m 3 The air volume of the exhaust fan 35 is preferably set to be larger than the air volume of the circulation fan 45.

[0056] As shown in FIG. 6, the circulation fan 45 is provided in an air passage connecting the second air inlet 40 and the air outlet 50. In other words, the circulation fan 45 is provided inside the housing 10. The circulation fan 45 is a so-called fan that generates an airflow by rotating a fan. The circulation fan 45 generates an airflow in a direction from the second air inlet 40 toward the air outlet 50. The airflow volume of the circulation fan 45 is, for example, 150 m 3 / h~250m 3 In other words, the air flow rate of the circulation fan 45 is preferably set to be smaller than the air flow rate of the exhaust fan 35.

[0057] Next, referring to FIG. 7, the flow straightening portion 63 and the upper end portion 68 and the lower end portion 69 of the second suction port 40 will be described in detail. The configuration will be described below. Fig. 7 is an enlarged view of the rectification unit 63 and its surroundings in Fig. 5.

[0058] The flow rectifying portion 63 is a hollow structure that protrudes from the leading end of the rear wall 60 in the vertical direction toward the cooking appliance 2 (front side). Note that the flow rectifying portion 63 does not necessarily have to protrude from the leading end of the rear wall 60 in the vertical direction. For example, the flow rectifying portion 63 may protrude from a position that is approximately the center of the rear wall 60 in the z-axis direction. In other words, the protruding position of the flow rectifying portion 63 may be determined appropriately taking into consideration the design of the cooking exhaust device 1, the desired collection efficiency, etc. The flow rectifying portion 63 has an upper surface portion 65 and a lower surface portion 67.

[0059] The upper surface portion 65 is a structure located at the upper end of the airflow rectifying portion 63. In other words, the upper surface portion 65 is a structure located at the upper end of the cooking exhaust apparatus 1. The length L1 of the upper surface portion 65 in the y-axis direction is, for example, approximately 160 mm to 220 mm. In other words, the length L1 of the upper surface portion 65 in the y-axis direction is equal to the length from the back surface 14 to the tip of the upper surface portion 65. Furthermore, the length L2 in the y-axis direction from the tip of the upper surface portion 65 to a position corresponding to the front surface 61 is, for example, approximately 80 mm to 120 mm. In this embodiment, the tip of the upper surface portion 65 in the y-axis direction is located between the front surface 12 of the cooking exhaust apparatus 1 and the first air inlet 30, but this is not limiting. The upper surface portion 65 may be located, for example, to cover the cooking appliance 23c or the cooking appliances 23a and 23b, or may be located vertically above the first air inlet 30. That is, the length of upper surface portion 65 may be determined appropriately, taking into consideration the desired collection efficiency or the cook's operability. The width of upper surface portion 65 in the x-axis direction is approximately the same as the width of cooking exhaust device 1 (see FIG. 3). In other words, the width of upper surface portion 65 in the x-axis direction is approximately the same as width W3 of second air inlet 40. Upper surface portion 65 has an inner surface 82 and an outer surface 84.

[0060] The inner surface 82 is a surface located at the lower end of the upper surface portion 65. In other words, the inner surface 82 is a surface of the upper surface portion 65 located on the lower surface portion 67 side. The inner surface 82 is also a surface that protrudes from the back surface 14 in a substantially horizontal direction toward the front side of the cooking appliance 2.

[0061] The outer surface 84 is a surface located at the upper end of the upper surface portion 65. In other words, the outer surface 84 is a surface of the upper surface portion 65 located on the opposite side from the lower surface portion 67. The outer surface 84 is a surface that protrudes from the back surface 14 in a substantially horizontal direction toward the front side of the cooking appliance 2.

[0062] The lower surface portion 67 is a structure located at the lower end of the rectifying portion 63. The length of the lower surface portion 67 in the y-axis direction is the sum of length L2, which is the distance between the front surface 61 and the tip of the upper surface portion 65, and length L3, which is the distance between the tip of the upper surface portion 65 and the tip of the lower surface portion 67. That is, the length of the lower surface portion 67 in the y-axis direction is length L2 + length L3. Note that length L3 is, for example, approximately 80 mm to 120 mm. In other words, length L1 and length L2 are approximately the same length in the y-axis direction. In this embodiment, the tip of the lower surface portion 67 in the y-axis direction is located vertically above the end on the rear side of the cooking device 23c, but this is not limiting. The lower surface portion 67 may be located, for example, to cover the cooking device 23c or the cooking devices 23a and 23b, or may be located vertically above the front surface 12 of the cooking exhaust device 1. That is, the length of the lower surface portion 67 may be determined appropriately, taking into consideration the desired collection efficiency or the cook's operability. The width of the lower surface portion 67 in the x-axis direction is approximately the same as the width of the cooking exhaust device 1 (see FIG. 3). In other words, the width of the lower surface portion 67 in the x-axis direction is approximately the same as the width W3 of the second air inlet 40. The lower surface portion 67 has an inner surface 86 and an outer surface 88.

[0063] The inner surface 86 is a surface located at the upper end of the lower surface portion 67. In other words, the inner surface 86 is a surface of the lower surface portion 67 located on the upper surface portion 65 side. The inner surface 86 also protrudes from the front surface 61 in a substantially horizontal direction toward the front side of the cooking appliance 2.

[0064] The outer surface 88 is a surface located at the lower end of the lower surface portion 67. In other words, the outer surface 88 is a surface of the lower surface portion 67 located on the opposite side from the upper surface portion 65. The outer surface 88 is a surface that protrudes from the front surface 61 in a substantially horizontal direction toward the front side of the cooking appliance 2.

[0065] The second suction port 40 has an opening formed by an upper end 68 and a lower end 69 .

[0066] The upper end 68 is the upper end of the opening of the second air inlet 40 in a side view. In other words, the upper end 68 can also be said to be the tip of the upper surface portion 65 of the airflow rectifying portion 63. Note that the side view is a perspective when viewing the cooking exhaust device 1 along the x-axis direction. The upper end 68 is located above the lower end 69. The upper end 68 is located between the front surface 12 and the first air inlet 30 in the y-axis direction. Furthermore, the upper end 68 is located closer to the back side than the lower end 69 in a side view.

[0067] The lower end 69 is the lower end of the opening of the second air inlet 40 in a side view. In other words, the lower end 69 can also be said to be the tip of the lower surface portion 67 of the airflow rectifying portion 63. The lower end 69 is located below the upper end 68. The lower end 69 is located approximately vertically above the end of the back side of the cooking device 23c. The lower end 69 is also located closer to the front of the cooking equipment 2 than the upper end 68. In other words, the lower end 69 is located closer to the cooker than the upper end 68.

[0068] Next, the flow of air sucked through first air inlet 30 and second air inlet 40 will be described with reference to FIGS.

[0069] 7, cooking utensil 5 is, for example, a pot or a frying pan that enables cooking by being placed in cooking appliance 23. Cooking utensil 5 includes top portion 6.

[0070] The top portion 6 is the upper end of the cooking utensil 5. In other words, the top portion 6 is an opening (not shown) of a cooking utensil such as a frying pan. In other words, the top portion 6 is an opening through which air containing oily smoke or odors emitted from the cooking utensil 5 is released from the cooking utensil 5.

[0071] Here, the space above the cooking equipment 2 is divided into and defined as a first space 80 located vertically below the lower surface 67 (inner surface 86) of the flow straightener 63, and a second space 90 located above the lower surface 67 (inner surface 86) of the flow straightener 63. In other words, in the first space 80, there is first air EA drawn into the first air inlet 30, as indicated by the black arrow in Fig. 7 (and Fig. 5). In addition, in the second space 90, there is second air RA drawn into the second air inlet 40, as indicated by the white arrow in Fig. 7 (and Fig. 6).

[0072] The first space 80 is a space located below the lower surface portion 67 (inner surface 86) of the airflow rectifying portion 63 in an upper space that is a space located above the cooking appliance 2. In the first space 80, first air EA exists.

[0073] The first air EA is air within the first space 80. In other words, the first air EA is air located below the lower surface portion 67 (inner surface 86) of the flow straightening portion 63. The first air EA also contains more oily smoke or odors generated by cooking than the second air RA.

[0074] The second space 90 is a space located above the lower surface portion 67 (inner surface 86) of the airflow rectifying portion 63 in an upper space that is a space located above the cooking equipment 2. In the second space 90, second air RA exists.

[0075] The second air RA is air in the second space 90. In other words, the second air RA is air located above the lower surface portion 67 (inner surface 86) of the air flow regulating portion 63. The second air RA is air that contains less oily smoke or odors caused by cooking than the first air EA. In other words, the second air RA is air that is cleaner than the first air EA.

[0076] Assume that a cooker places cooking implement 5 on cooking appliance 23, for example, and begins cooking, and cooking exhaust device 1 starts operating. That is, exhaust fan 35 and circulation fan 45 start blowing air. As a result, as shown in FIG. 5, first air EA in first space 80 is drawn into first air inlet 30 and exhausted to the outdoors OT via the interior of housing 10. Meanwhile, as shown in FIG. 6, second air RA is drawn into second air inlet 40 and blown out of air outlet 50 via rear wall 60 and the interior of housing 10.

[0077] With this configuration, the second suction port 40 draws in the relatively clean second air RA. This prevents the first suction port 30 from drawing in the second air RA. In other words, by reducing the proportion of the second air RA and increasing the proportion of the first air EA in the air drawn in by the first suction port 30, it is possible to improve the collection efficiency. In other words, the above configuration prevents air above the first space 80 from flowing into the first space 80, allowing the first suction port 30 to efficiently draw in the first air EA. As a result, it is possible to increase the proportion of air containing oily smoke or odor in the exhaust air, thereby improving the collection efficiency.

[0078] Furthermore, the lower end 69 of the second air inlet 40 is located closer to the front of the cooking equipment 2 (closer to the cook) than the upper end 68.

[0079] With this configuration, the second suction port 40 opens upward (toward the second space 90). This means that the second suction port 40 can more easily draw in the second air RA in the second space 90 and less easily draw in the first air EA. In other words, the air drawn into the second suction port 40 flows in a generally downward direction (from the positive side to the negative side of the z-axis), preventing the first air EA from rising and confining it in the first space 80. As a result, the proportion of the second air RA in the air drawn into the first suction port 30 decreases, while the proportion of the first air EA increases. This means that the collection efficiency can be improved. Furthermore, since the second suction port 40 is less likely to draw in the first air EA, it is possible to prevent air containing oily smoke or odors from being blown out of the air outlet 50. This can reduce the discomfort felt by the cook and prevent contamination of the air passage from the second suction port 40 to the air outlet 50.

[0080] Furthermore, one side of the opening of the first air inlet 30 is shared with the front surface 61 of the rear wall 60 .

[0081] With this configuration, the first air EA is drawn into the first suction port 30 in a generally straight line (along the z-axis direction) along the front surface 61. This makes it difficult for turbulence to occur near the first suction port 30, allowing air to be drawn in efficiently through the first suction port 30. In other words, it is possible to increase the amount of first air EA that can be exhausted per unit time and suppress pressure loss caused by turbulence.

[0082] The air drawn into the second air inlet 40 is then blown out from the air outlet 50 toward the cook (the front side of the cooking equipment 2) and toward the outside of the cooking equipment 2 (see FIG. 4). More precisely, the air outlet 50 blows out the air toward the cook and toward the outside of the cooking equipment 2 at an angle of approximately 45° with respect to the right side surface 26 or the left side surface 28 of the cooking equipment 2.

[0083] With this configuration, an air curtain can be formed by the air blown out from the air outlet 50. In other words, the air curtain can keep the first air EA containing a large amount of oily smoke or odor inside the air curtain, i.e., in the first space 80. As a result, the first air EA containing a large amount of oily smoke or odors is more likely to be sucked into the first suction port 30, making it possible to improve collection efficiency.

[0084] The lower end of the air outlet 50 is provided so as to be in approximate contact with the upper surface 11 of the housing, and the upper end of the air outlet 50 is provided so as to be in approximate contact with the lower surface 67 of the airflow rectifying section 63.

[0085] With this configuration, it is possible to prevent the first air EA rising from the ceiling 6 from leaking outside the cooking appliance 2. In other words, the second air RA (air curtain) blown out from the air outlet 50 can more reliably keep the first air EA within the first space 80. As a result, the first air inlet 30 can more reliably draw in the first air EA, and collection efficiency can be improved.

[0086] Furthermore, the air outlet 50 is provided further outward from the cooking exhaust device 1 than both ends of the first air inlet 30 in the x-axis direction.

[0087] With this configuration, it is possible to prevent the air blown out from the air outlet 50 from being directly sucked into the first air inlet 30. In other words, it is possible to reduce the proportion of air other than the first air EA in the air sucked into the first air inlet 30. That is, the proportion of the first air EA in the air sucked into the first air inlet 30 increases, and it is possible to improve the collection efficiency. (Variation 1) Next, Modification 1 will be described with reference to Fig. 8, but descriptions of the same configuration as in Embodiment 1 may be omitted or simplified. Fig. 8 is an enlarged view of a rectification unit 63a according to Modification 1, and corresponds to Fig. 7.

[0088] Modification 1 differs from Embodiment 1 mainly in the configuration of rectifying section 63a. Specifically, the direction in which second suction port 40a opens differs from that in Embodiment 1. Even more specifically, the positional relationship between upper end 68a and lower end 69a of second suction port 40a differs from that in Embodiment 1.

[0089] The flow rectifying portion 63a is a hollow structure that protrudes from the leading end of the rear wall 60a in the erecting direction toward the front side of the cooking appliance 2. The flow rectifying portion 63a includes an upper surface portion 65a and a lower surface portion 67a.

[0090] The upper surface portion 65a is a structure located at the upper end of the airflow rectifying portion 63a. In other words, the upper surface portion 65a is a structure located at the upper end of the cooking exhaust apparatus 1a. The length L4 of the upper surface portion 65a in the y-axis direction is approximately the same as the length from the rear surface 14a to the tip of the upper surface portion 65a. In other words, the tip of the upper surface portion 65a is located at approximately the same position as the tip of the lower surface portion 67a in the y-axis direction. In this modification, the tip of the upper surface portion 65a in the y-axis direction is located vertically above the end of the cooking appliance 23c on the rear side. The width of the upper surface portion 65a in the x-axis direction is approximately the same as the width of the cooking exhaust apparatus 1a (not shown). The upper surface portion 65a has an inner surface 82a and an outer surface 84a.

[0091] The inner surface 82a is a surface located at the lower end of the upper surface 65a. In other words, the inner surface 82a is a surface of the upper surface 65a located on the lower surface 67a side. The inner surface 82a also protrudes from the rear surface 14a in a substantially horizontal direction toward the front side of the cooking appliance 2.

[0092] The outer surface 84a is a surface located at the upper end of the upper surface 65a. In other words, the outer surface 84a is a surface of the upper surface 65a located on the opposite side from the lower surface 67a. The outer surface 84a is a surface that protrudes from the back surface 14a in a substantially horizontal direction toward the front side of the cooking appliance 2.

[0093] The lower surface portion 67a is a structure located at the lower end of the flow rectification portion 63a. The length L5 of the lower surface portion 67a in the y-axis direction is approximately the same as the length between the position corresponding to the front surface 61a in the y-axis direction and the tip of the lower surface portion 67a. In this modification, the tip of the lower surface portion 67a in the y-axis direction is located vertically above the end of the cooking appliance 23c on the rear side. In other words, the tip of the lower surface portion 67a and the tip of the upper surface portion 65a are arranged side by side in the vertical direction. The width of the lower surface portion 67a in the x-axis direction is approximately the same as the width of the cooking exhaust device 1a (not shown). The lower surface portion 67a has an inner surface 86a and an outer surface 88a.

[0094] The inner surface 86a is a surface located at the upper end of the lower surface 67a. In other words, the inner surface 86a is a surface of the lower surface 67a located on the upper surface 65a side. The inner surface 86a also protrudes from the front surface 61a in a substantially horizontal direction toward the front side of the cooking appliance 2.

[0095] The outer surface 88a is a surface located at the lower end of the lower surface portion 67a. In other words, the outer surface 88a is a surface of the lower surface portion 67a located on the opposite side from the upper surface portion 65a. The outer surface 88a is a surface that protrudes from the rear surface 14 in a substantially horizontal direction toward the front side of the cooking appliance 2.

[0096] The second suction port 40a has an opening defined by an upper end 68a and a lower end 69a.

[0097] Upper end 68a is the upper end of the opening of second air inlet 40a. In other words, upper end 68a can also be said to be the tip of upper surface portion 65a (inner surface 82a) of airflow rectifying portion 63a. Upper end 68a is located approximately vertically above lower end 69a. In other words, upper end 68a is located approximately vertically above the end of cooking device 23c on the rear side.

[0098] Lower end 69a is the lower end of the opening of second air inlet 40a. In other words, lower end 69a can also be said to be the tip of lower surface portion 67a (inner surface 86a) of airflow rectifying portion 63a. Lower end 69a is located approximately vertically below upper end 68a. In other words, lower end 69a is located approximately vertically above the end of the back side of cooking device 23c. In other words, in the first embodiment, lower end 69 of second air inlet 40 is located closer to the front of cooking appliance 2 than upper end 68 in side view, whereas in this modified example, upper end 68a and lower end 69a are arranged side by side in the vertical direction, so that second air inlet 40a opens toward the front of cooking appliance 2.

[0099] With this configuration, the direction of travel of the second air RA sucked in through the second suction port 40a is approximately horizontal. In other words, the above configuration suppresses variation in the direction of travel of the second air RA, and the second air RA is sucked into the second suction port 40a approximately horizontally. This makes it easier for an air curtain AC to be formed upstream of the second suction port 40a (within the second space 90). As a result, the air curtain AC suppresses the rise of the first air EA, and the first air EA is more likely to remain within the first space 80. In other words, by making it easier for the first suction port 30 to suck in the first air EA, collection efficiency can be improved. (Variation 2) Next, Modification 2 will be described with reference to Fig. 9, but descriptions of the same configuration as in Embodiment 1 may be omitted or simplified. Fig. 9 is an enlarged view of a rectification unit 63b according to Modification 2, and corresponds to Fig. 7.

[0100] Modification 2 differs from Embodiment 1 mainly in the configuration of rectifying section 63b. Specifically, the direction in which second suction port 40b opens differs from Embodiment 1. Even more specifically, the positional relationship between the ends (right end 41b, left end 42b) of second suction port 40b that form the opening of second suction port 40b differs from Embodiment 1.

[0101] The flow rectifying portion 63b includes an upper surface portion 65b and a lower surface portion 67b.

[0102] Upper surface portion 65b is a structure located at the upper end of flow rectification portion 63b. In other words, upper surface portion 65b is a structure located at the upper end of cooking exhaust apparatus 1b. The length of upper surface portion 65b in the y-axis direction is approximately the same as the length from back surface 14b to the tip of upper surface portion 65b. In this modification, the tip of upper surface portion 65b in the y-axis direction is located vertically above the boundary between inclined surface 71 and horizontal plane 72 of lower surface portion 67b. The width of upper surface portion 65b in the x-axis direction is approximately the same as the width of cooking exhaust apparatus 1b (not shown). Upper surface portion 65b has an inner surface 82b and an outer surface 84b.

[0103] The inner surface 82b is a surface located at the lower end of the upper surface 65b. In other words, the inner surface 82b is a surface of the upper surface 65b that is located on the lower surface 67b side. More precisely, the inner surface 82b is a surface of the upper surface 65b that is located on the horizontal plane 72 side. The inner surface 82b is a surface that protrudes from the back surface 14b in a substantially horizontal direction toward the front side of the cooking appliance 2.

[0104] The outer surface 84b is a surface located at the upper end of the upper surface portion 65b. In other words, the outer surface 84b is a surface of the upper surface portion 65b located on the opposite side from the lower surface portion 67b. The outer surface 84b is a surface that protrudes from the back surface 14b in a substantially horizontal direction toward the front side of the cooking appliance 2.

[0105] The lower surface portion 67b is a structure located at the lower end of the flow straightening portion 63b. The length of the lower surface portion 67b in the y-axis direction is approximately the same as the sum of the length L6 of the horizontal surface 72 and the length L7 of the inclined surface 71. In other words, the length of the lower surface portion 67b in the y-axis direction is approximately the same as the length from the position corresponding to the front surface 61b to the end on the rear side of the cooking appliance 23c. The width of the lower surface portion 67b in the x-axis direction is approximately the same as that of the cooking exhaust device 1b (not shown). The lower surface portion 67b includes the horizontal surface 72, the inclined surface 71, and an outer surface 88b.

[0106] The horizontal surface 72 is the surface of the lower surface portion 67b located at the top and rear side (positive side of the y-axis). In other words, the horizontal surface 72 is the surface located rearward of the inclined surface 71. The horizontal surface 72 protrudes from the front surface 61b in a substantially horizontal direction toward the front side of the cooking appliance 2. The tip of the horizontal surface 72 in the protruding direction is located at the boundary between the inclined surface 71 and the horizontal surface 72. In other words, the tip of the horizontal surface 72 in the protruding direction is located vertically below the tip of the upper surface portion 65b. The length L6 of the horizontal surface 72 in the y-axis direction is approximately the same as the length from the front surface 61b to the boundary between the horizontal surface 72 and the inclined surface 71. The width of the horizontal surface 72 in the x-axis direction is approximately the same as that of the cooking exhaust device 1b (not shown). The horizontal surface 72 is a surface that is continuous with the inclined surface 71.

[0107] The inclined surface 71 is a surface of the lower surface portion 67b located at the lower end and on the front side (negative side of the y-axis). In other words, the inclined surface 71 is a surface located closer to the front side than the horizontal surface 72. In further words, the lower surface portion 67b of the flow rectifying unit 63b has an inclined surface 71 that is inclined toward the front side of the cooking appliance 2 and in a direction forming an elevation angle when viewed from the side. The length L7 of the inclined surface 71 in the y-axis direction is approximately the same as the length between the boundary between the horizontal surface 72 and the inclined surface 71 and the tip of the inclined surface 71 in the protruding direction. In this modified example, the tip of the inclined surface 71 in the protruding direction is located vertically above the end of the rear side of the cooking appliance 23c. The inclined surface 71 is a surface that protrudes from the tip of the horizontal surface 72 in the protruding direction and in a direction forming an elevation angle toward the front side of the cooking appliance 2. In other words, the inclined surface 71 and the horizontal surface 72 form a predetermined angle θb. In this modification, the predetermined angle θb is approximately 150°, but is not limited to this. The predetermined angle θb may be in the range of 90°<θb<180°. In other words, the angle may be such that the inclined surface 71 projects in the elevation direction and toward the front side of the cooking appliance 2.

[0108] The outer surface 88b is a surface located at the lower end of the lower surface portion 67b. 1b, and protrudes substantially horizontally toward the front side of the cooking equipment 2.

[0109] Second air inlet 40b has an opening formed between right end 41b and left end 42b.

[0110] Right end 41b is the end on the back side of the opening of second air inlet 40b. In other words, right end 41b can be said to be the tip of outer surface 84b of upper surface portion 65b in the protruding direction. In this embodiment, right end 41b is provided at approximately the same height as left end 42b.

[0111] Left end 42b is the end on the front side of the opening of second suction port 40b. In other words, left end 42b can also be said to be the tip of inclined surface 71 in the protruding direction. In this modified example, left end 42b is provided at approximately the same height as right end 41b. That is, in the first embodiment, the ends of second suction port 40 in a side view (upper end 68, lower end 69) are provided at different heights, whereas in this modified example, the ends of second suction port 40b (right end 41b, left end 42b) are provided at approximately the same height.

[0112] With this configuration, the second suction port 40b opens approximately vertically upward (toward the positive side of the z-axis). That is, the second suction port 40 more reliably draws in the second air RA. As a result, the proportion of the second air RA in the air drawn in by the first suction port 30 decreases and the proportion of the first air EA increases, thereby improving collection efficiency. (Variation 3) Next, Modification 3 will be described with reference to Fig. 10, but descriptions of the same configuration as in Embodiment 1 may be omitted or simplified. Fig. 10 is an enlarged view of rectification unit 63c in Modification 3, and corresponds to Fig. 7.

[0113] Modification 3 differs from embodiment 1 mainly in the configuration of the rectifying portion 63c. Specifically, it differs from embodiment 1 in that the rectifying portion 63c protrudes from the rear wall 60c toward the front side (the cook side) of the cooking equipment 2 at an elevation angle.

[0114] The flow rectifying portion 63c is a hollow structure that protrudes from the tip of the rear wall 60c toward the front side of the cooking appliance 2 at an elevation angle. The flow rectifying portion 63c includes an upper surface portion 65c and a lower surface portion 67c.

[0115] The upper surface portion 65c is a structure located at the upper end of the flow rectifying portion 63c and protrudes from the tip of the rear wall 60c (rear surface 14c) toward the front side (cooker side) of the cooking appliance 2 at an elevation angle. In other words, the upper surface portion 65c protrudes at a predetermined angle θc relative to the rear surface 14c. In further words, the upper surface portion 65c and the rear surface 14c form a predetermined angle θc. In this modification, the predetermined angle θc is approximately 120°, but is not limited to this. The predetermined angle θc may be any angle as long as 90°<θc<180°. In other words, the upper surface portion 65c may protrude toward the front side of the cooking appliance 2 at an elevation angle. The upper surface portion 65c and the lower surface portion 67c protrude from the rear wall 60c so as to be approximately parallel to each other. The upper surface portion 65c has an inner surface 82c and an outer surface 84c.

[0116] The inner surface 82c is a surface located at the lower end of the upper surface 65c. In other words, the inner surface 82c is a surface of the upper surface 65c located on the lower surface 67c side. The inner surface 82c is a surface that protrudes from the back surface 14c in a direction toward the front of the cooking appliance 2 and at an elevation angle.

[0117] The outer surface 84c is a surface located at the upper end of the upper surface portion 65c. In other words, the outer surface 84c is a surface of the upper surface portion 65c located on the opposite side from the lower surface portion 67c. The outer surface 84c is a surface that protrudes from the back surface 14c in a direction toward the front of the cooking appliance 2 and at an elevation angle.

[0118] The lower surface portion 67c is a structure located at the lower end of the flow rectifying portion 63c, and protrudes from the tip of the rear wall 60c (front surface 61c) in a direction toward the front of the cooking appliance 2 and at an elevation angle. In other words, the lower surface portion 67c protrudes at a predetermined angle θc relative to the front surface 61c. In other words, the lower surface portion 67c and the front surface 61c form a predetermined angle θc. In other words, the upper surface portion 65c and the lower surface portion 67c protrude in approximately the same direction. The lower surface portion 67c has an inner surface 86c, an inclined surface 71c, and a horizontal surface 72c.

[0119] The inner surface 86c is a surface located at the upper end of the lower surface portion 67c. In other words, the inner surface 86c is a surface of the lower surface portion 67c located on the upper surface portion 65c side. The inner surface 86c is a surface that protrudes from the front surface 61c in a direction toward the front of the cooking appliance 2 and at an elevation angle.

[0120] The inclined surface 71c is the surface located at the lower end and rear side of the lower surface portion 67c. The inclined surface 71c is a surface that protrudes from the front surface 61c in a direction forming an elevation angle toward the front side of the cooking equipment 2. In other words, the front surface 61c and the inclined surface 71c form a predetermined angle θc. The length L8 of the inclined surface 71c in the y-axis direction is approximately the same as the length from the front surface 61c to the end of the horizontal surface 72c on the rear side. The width of the inclined surface 71c in the x-axis direction is approximately the same as the width of the cooking exhaust device 1c (not shown). The inclined surface 71c is a surface that is continuous with the horizontal surface 72c.

[0121] The horizontal surface 72c is located at the lower end of the lower surface portion 67c and on the front side. In other words, the lower surface portion 67c of the flow rectifying portion 63c includes the horizontal surface 72c, which is a substantially horizontal surface, on a portion of the tip side of the flow rectifying portion 63c in a side view. The horizontal surface 72c projects substantially horizontally from the tip of the inclined surface 71c in the protruding direction toward the front side of the cooking appliance 2. The tip of the horizontal surface 72c in the protruding direction is located approximately vertically above the end of the inclined surface 71c on the rear side of the cooking appliance 23c. The length L9 of the horizontal surface 72c in the y-axis direction is approximately the same as the length from the end of the inclined surface 71c on the front side to the tip of the horizontal surface 72c in the protruding direction. In this modified example, the relationship between the length L9 and the length L8 is set to be greater than the length L8, but this is not limiting. The inclined surface 71c and the horizontal surface 72c may be arranged so that the relationship between the length L9 and the length L8 is satisfied. The width of horizontal surface 72c in the x-axis direction is approximately the same as the width of cooking exhaust device 1c (not shown).

[0122] Second air inlet 40c has an opening formed between right end 41c and left end 42c.

[0123] Right end 41c is the end on the back side of the opening of second air inlet 40c. In other words, right end 41c can be said to be the tip of inner surface 82c of upper surface portion 65c in the protruding direction. In this embodiment, right end 41c is provided at approximately the same height as left end 42b.

[0124] Left end 42c is the end on the front side of the opening of second air inlet 40c. In other words, left end 42c can be said to be the tip of inner surface 86c in the protruding direction. In this embodiment, left end 42c is provided at approximately the same height as right end 41c.

[0125] As described above, in the first embodiment, the upper surface portion 65 and the lower surface portion 67 protrude from the rear wall 60 in a substantially horizontal direction, whereas in this modification, the upper surface portion 65c and the lower surface portion 67c protrude from the rear wall 60c in a direction forming an elevation angle. With this configuration, the angle θc formed between the upper surface portion 65c and the rear wall 60c can be made larger than 90°. In other words, the air passage from the second air inlet 40c to the circulation fan 45 (see FIG. 6) can be made closer to a linear shape, thereby suppressing pressure loss occurring within the air passage. More precisely, the collection efficiency can be improved and pressure loss can be suppressed. (Variation 4) Next, a fourth modification will be described with reference to FIG. 11. The fourth modification has the same configuration as the first embodiment. 11 is an external perspective view of a cooking exhaust device 1d in the fourth modification, and corresponds to FIG.

[0126] Modification 4 differs from Embodiment 1 in that cooking exhaust device 1d includes sidewalls 75d. Specifically, modification 4 differs from Embodiment 1 in that airflow rectifying section 63d includes sidewalls 75d on both ends of lower surface section 67d.

[0127] The side walls 75d are plate-like structures that stand vertically upward from both ends of the lower surface portion 67d in the y-axis direction. The tip of the side wall 75d in the standing direction (z-axis direction) is provided at approximately the same height as the upper surface portion 65d. The end of the side wall 75d on the front side (negative side of the y-axis) is provided at approximately the same position as the end of the lower surface portion 67d. In other words, while the side wall 75d is not provided in the first embodiment, the side wall 75d is provided in this modified example.

[0128] This configuration prevents the air blown out from the air outlet 50 from being sucked into the second air inlet 40d. That is, it is possible to prevent the air blown out from the air outlet 50 from varying in direction. This ensures that an air curtain is formed by the air blown out from the air outlet 50. That is, the first air EA is more likely to remain in the first space 80. As a result, the first air inlet 30 can efficiently suck in the first air EA, and collection efficiency can be improved. (Variation 5) Next, Modification 5 will be described, but the description of the same configuration as in Embodiment 1 may be omitted or simplified. Fig. 12 is a front view of a cooking exhaust device 1e in Modification 5, and corresponds to Fig. 3.

[0129] Modification 5 differs from embodiment 1 in that the positional relationship between the air outlets 50e, 50f and the second air inlet 40e is different.

[0130] Second air inlet 40e is located between air outlet 50e and air outlet 50f in the x-axis direction. More specifically, the left end of second air inlet 40e is located to the right of air outlet 50e (inside cooking exhaust device 1), and the right end of second air inlet 40e is located to the left of air outlet 50f (inside cooking exhaust device 1).

[0131] The air outlet 50e is provided to the left of the second air inlet 40e when viewed from the front. The upper end of the air outlet 50e is provided at approximately the same position as the upper end of the exhaust device 1 for cooking.

[0132] The air outlet 50f is provided to the right of the second air inlet 40e when viewed from the front. The upper end of the air outlet 50f is provided at approximately the same position as the upper end of the exhaust device 1 for cooking.

[0133] That is, the total amount of air that must be sucked in by second air inlet 40e can be reduced compared to the configuration shown in embodiment 1. In other words, the volume of the space that is the target of air intake by second air inlet 40e can be reduced.

[0134] With this configuration, it is possible to reduce the amount of air blown by circulation fan 45 compared to embodiment 1. As a result, it is possible to improve collection efficiency while achieving reductions in power consumption and noise of circulation fan 45.

[0135] The present invention has been described above using Embodiment 1 and Modifications 1 to 5. The present invention is not limited to the above-described embodiment. It can be easily assumed that various improvements and modifications are possible within the scope of the present invention.

[0136] An outline of one aspect of the present disclosure is as follows. (Item 1) a housing (10) for being adjacent to a side (27) of a cooking facility (2) having a cooking device (23) on a top surface (21); a rear wall (60) located on the rear side of the cooking equipment (2) as seen from the cook using the cooking equipment (2) and erected from the upper surface (11) of the housing; a straightening portion (63) protruding from the tip end side of the rear wall (60) toward the front side of the cooking equipment (2); a first suction port (30) provided on the upper surface (11) and configured to draw in first air (EA) below the airflow straightening section (63); a second suction port (40) provided at a tip of the rectifying portion (63) and configured to draw in second air (RA) above the rectifying portion (63); Equipped with The first air (EA) drawn in through the first suction port (30) is exhausted outdoors, and the second air (RA) drawn in through the second suction port (40) is blown indoors. Cooking exhaust system (1). (Item 2) an air outlet (50) for blowing out the second air (RA) sucked through the second air inlet (40); The air outlet (50) provided on the rear wall (60), When viewed from above, air is blown out toward the front side of the cooking equipment (2) and toward the outside of the cooking equipment (2). Item 1. A cooking exhaust device (1) according to item 1. (Item 3) The second suction port (40) an upper end portion (68) that is an upper end of the second suction port in a side view; a lower end portion (69) that is a lower end of the second suction port in a side view; Equipped with The lower end (68) The cooking equipment (2) is provided closer to the front side than the upper end portion (69). The cooking exhaust device (1) according to item 1 or 2. (Item 4) The lower surface (67b) of the flow straightening portion is The cooking exhaust device (1b) according to item 1 or 2, comprising an inclined surface (71) that is inclined in a direction toward the front side of the cooking equipment (2) at an elevation angle when viewed from the side. (Item 5) The rectifying section (63) A protrusion (60) projects from the tip end of the rear wall (60) toward the front side of the cooking equipment (2) in a substantially horizontal direction. The cooking exhaust device (1) according to item 1 or 2. (Item 6) The rectifying section (63c) protruding from the rear wall (60c) in a direction toward the front side of the cooking equipment (2) and at an elevation angle; The lower surface (67c) of the flow straightening portion (63c) is When viewed from the side, the flow straightening portion (63c) has a substantially horizontal surface (72c) at a part of its tip end. Item 1 or 2. The cooking exhaust device according to item 1 or 2. [Industrial Applicability]

[0137] It can be widely used as an exhaust device for cooking. [Explanation of symbols]

[0138] 1, 1a, 1b, 1c, 1d, 1e Cooking exhaust system 2. Cooking equipment 5. Cooking utensils 6 days 10 box 11 Above the cabinet 12 Front 13 Right side 14, 14a, 14b, 14c Back 15 Left side 16 below 21 Tianmian 23, 23a, 23b, 23c Heating and conditioning machines 24 front side 25a, 25b door 26 Right side 27 rear side 28 Left side 29 Storage Department 30 First suction port 35 Exhaust fan 40, 40a, 40b, 40c, 40e Second suction port 41a, 41b, 41c right end 42a, 42b, 42c left end 45 Circulation fan 50, 50a, 50b, 50e, 50f blowout ports 51, 51a, 51b Blowing angle setting unit 60, 60a, 60b, 60c back wall 61, 61a, 61b, 61c front 63, 63a, 63b, 63c, 63d Rectification unit 65, 65a, 65b, 65c, 65d upper face 67, 67a, 67b, 67c, 67d lower face 71, 71c inclined surface 72, 72c horizontal plane 75d sidewall 80 First Space 82, 82a, 82b, 82c inner surface 84, 84a, 84b, 84c outside 86, 86a, 86c inner surface 88, 88a, 88b, 88c outside 90 Second Space

Claims

1. a housing for being adjacent to a side of a cooking facility having a cooking device on a top surface; A rear wall is located on the rear side of the cooking equipment as seen from the cook using the cooking equipment and stands upright from the top surface of the housing; a straightening portion protruding from a tip end side of the rear wall toward a front side of the cooking equipment; a first intake port provided on the upper surface and configured to draw in first air below the airflow rectifying portion; a second suction port provided at a tip of the rectifying portion and configured to suck in second air above the rectifying portion, The first air drawn in through the first air inlet is exhausted outdoors, and the second air drawn in through the second air inlet is blown indoors. Cooking exhaust system.

2. an air outlet for blowing out the second air sucked through the second air inlet, The air outlet is provided on the rear wall, When viewed from above, air is blown out toward the front side of the cooking equipment and toward the outside of the cooking equipment. The cooking exhaust system of claim 1.

3. The second suction port is An upper end portion that is an upper end of the second suction port when viewed from the side; A lower end portion that is a lower end of the second suction port when viewed from the side; Equipped with The lower end portion is The cooking equipment is provided closer to the front side than the upper end portion. The cooking exhaust device according to claim 1 or 2.

4. The lower surface of the rectifying portion is 3. The cooking exhaust device according to claim 1, further comprising an inclined surface that is inclined in a direction toward the front side of the cooking equipment at an angle of elevation when viewed from the side.

5. The rectifying unit is A protrusion projects from the tip end side of the rear wall toward the front side of the cooking equipment in a substantially horizontal direction. The cooking exhaust device according to claim 1 or 2.

6. The rectifying unit is protruding from the rear wall in a direction toward the front side of the cooking appliance and at an elevation angle; The lower surface of the rectifying portion is When viewed from the side, the straightening portion has a substantially horizontal surface at a part of the tip side thereof. The cooking exhaust device according to claim 1 or 2.

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