Cooking exhaust system

Abstract

To provide a cooking exhaust system that improves the collection efficiency of contaminated air, including oil fumes and odors, generated during cooking. [Solution] A cooking exhaust device 1 comprising an intake port 11, an airflow guider 20, and a blower 2, wherein the intake port 11 is provided on the upper surface 31a of a table 31 on which a cooking appliance 51 is installed, between the cooking appliance 51 and the airflow guider 20, the airflow guider 20 has an intake surface 25 and an opposite surface 26, the intake surface 25 has a first inclined portion 21 and a second inclined portion 22, the angle θb of the inclination of the second inclined portion 22 is greater than the angle θa of the inclination of the first inclined portion 21 with respect to the horizontal direction, the air around the intake port 11 has its direction of travel changed by the first inclined portion 21, the air whose direction of travel has been changed by the first inclined portion 21 has its direction of travel further changed by the second inclined portion 22, and the blower 2 draws in air from the intake port 11 in a state where the direction of travel has been changed by the second inclined portion 22.

Description

Technical Field

[0001] The present disclosure relates to a cooking exhaust device.

Background Art

[0002] Conventionally, a circulating cooking exhaust purification device is known. Patent Document 1 describes an air treatment device that sucks in fumes, odors, etc. generated during cooking by an electric heating appliance that does not generate carbon dioxide together with air, purifies it, and discharges it into the room.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The configuration of Patent Document 1 has a problem in efficiently sucking contaminated air into the suction port.

[0005] Therefore, the present disclosure is conceived from the above conventional problems, and an object thereof is to provide a cooking exhaust device with an improved collection rate of air containing fumes and odors generated during cooking.

Means for Solving the Problems

[0006] And, in order to achieve this object, a cooking exhaust device according to one aspect of the present disclosure is a cooking exhaust device including a suction port, an air flow guide, and a blower, where the suction port is provided between a heating cooker and the air flow guide on the upper surface of a table on which the heating cooker is provided, the air flow guide has a suction surface and an opposite surface, the suction surface is the surface on the suction port side, the opposite surface is the surface opposite to the suction port. The suction surface has a first inclined portion and a second inclined portion. The first inclined section is located further forward than the second inclined section, on the side closer to the cooking appliance. With respect to the horizontal direction, the angle at which the second inclined section is tilted is greater than the angle at which the first inclined section is tilted. The air around the intake port changes direction due to the first inclined section. The air whose direction of travel has been changed by the first inclined section has its direction of travel changed further by the second inclined section. The blower draws in air from the intake port with its direction of travel changed by the second inclined section. [Effects of the Invention]

[0007] According to this disclosure, it is possible to provide a cooking exhaust system that improves the collection efficiency of contaminated air, including oil fumes and odors, generated during cooking. [Brief explanation of the drawing]

[0008] [Figure 1] Perspective view showing the configuration of the cooking exhaust system according to Example 1 [Figure 2] Cross-sectional view showing the exhaust system for cooking. [Figure 3] Cross-sectional perspective view showing the exhaust system for cooking. [Figure 4] Cross-sectional view showing the same airflow guider. [Figure 5] Enlarged cross-sectional view showing the same airflow guider. [Figure 6] Enlarged side view showing the same airflow guider. [Figure 7] Enlarged top view showing the same airflow guider. [Modes for carrying out the invention]

[0009] The embodiments of this disclosure will be described below with reference to the drawings.

[0010] In each figure, the x-axis and the y-axis are axes that are perpendicular to each other on a horizontal plane. The z-axis is an axis perpendicular to the horizontal plane. On the x-axis, the positive direction represents the right direction, and the negative direction represents the left direction. On the y-axis, the positive direction represents the forward direction, and the negative direction represents the backward direction. On the z-axis, the positive direction represents the vertically upward direction, and the negative direction represents the vertically downward direction.

[0011] (Example 1) As shown in FIGS. 1, 2, and 3, the cooking exhaust device 1 has a suction port 11, an air flow guide 20, and a blower 2.

[0012] The suction port 11 is provided on the upper surface 31a of the table 31. The suction port 11 is located between the cooking appliance 51 and the air flow guide 20.

[0013] The air flow guide 20 has a suction surface 25, an opposite surface 26, a left side wall 27, and a right side wall 28.

[0014] The suction surface 25 is a surface for guiding air to the suction port 11. The suction surface 25 includes a first inclined portion 21 and a second inclined portion 22. The tip portion 21a is the front end portion of the first inclined portion 21.

[0015] The opposite surface 26 is a surface opposite to the suction surface 25. The opposite surface 26 includes a top surface 26a and a rear surface 26b.

[0016] The operation unit 41 may be provided on the front surface of the left side wall 27 or the front surface of the right side wall 28.

[0017] The lighting 42 may be provided on the inner wall of the left side wall 27 or the inner wall of the right side wall 28.

[0018] The operation unit 41 is a part for operating the operation of the blower 2 and / or the lighting 42.

[0019] The table 31 has an upper surface 31a, a front surface 31b, a rear surface 31c, a base 31d, a storage space 31e, and a rear surface 31f.

[0020] The heating appliance 51 has a first front coil 51a, a second front coil 51b, a rear coil 51c, and an IH exhaust port 51d. The IH exhaust port 51d is an opening for exhausting air from inside the heating appliance 51.

[0021] The blower 2 has blades 2a and a motor 2b.

[0022] The exhaust duct 92 forms an exhaust air passage 91. The exhaust duct 92 may also penetrate the floor 93 and pass through the space below the floor 93.

[0023] As shown by the airflow 90, the air drawn into the intake port 11 by the blower 2 is discharged outdoors through the exhaust air passage 91. This air may be discharged into an indoor space separate from the space where the cooking appliance 51 is located.

[0024] Next, we will describe the airflow 90 around the airflow guider 20.

[0025] As shown in Figure 4, when food in a cooking utensil 52 (such as a pot) is heated by the coils of the heating appliance 51 (first front coil 51a, second front coil 51b, and rear coil 51c), air containing oil fumes and odors is released from the cooking utensil 52.

[0026] Without the airflow guider 20, the air generated from the food being cooked rises, making it difficult for it to be efficiently drawn into the intake port 11. In particular, the air inside the cooking appliance 51 is blown out as an upward airflow from the IH exhaust port 51d. This upward airflow makes it difficult for the air generated from the food being cooked to enter the intake port 11.

[0027] On the other hand, the cooking exhaust device 1 of this embodiment has an airflow guider 20. The air around the area above the intake port 11 is subjected to a force by the blower 2 that tries to draw it into the intake port 11.

[0028] The airflow guider 20 directs the air generated from the cooking appliance 52 to the intake port 11.

[0029] Specifically, as shown in the airflow diagram 90, the air generated from the cooking appliance 52 is drawn towards the intake port 11 and rises. This air then strikes the first inclined section 21, changing its direction of travel to a downward and rearward direction. This air then strikes the second inclined section 22, causing its direction of travel to change further downward.

[0030] In this way, the air whose direction of travel has changed is drawn into the intake port 11, passes through the exhaust air passage 91, and is discharged.

[0031] As shown in Figure 5, with respect to the horizontal direction, the angle θb at which the second inclined portion 22 tilts upward from the front is greater than the angle θa at which the first inclined portion 21 tilts upward from the front.

[0032] With this configuration, the air generated from the cooking appliance 52 is smoothly guided to the intake port 11 while gradually changing its direction of travel. In other words, as the air generated from the cooking appliance 52 approaches the intake port 11, the range of its direction of travel gradually narrows. This allows the air velocity to be increased gradually. As a result, the air is smoothly guided to the intake port 11.

[0033] As a result, a cooking exhaust system 1 can be obtained that improves the collection efficiency of contaminated air, including oil fumes and odors, generated during cooking.

[0034] Furthermore, compared to the case where the suction surface 25 is shaped such that the tip 21a and the end 11a (the rear end of the suction port 11) are connected by a straight line with the same angles θa and θb, by making the angle θa smaller and the angle θb larger as shown in Figure 5, the space above the coil of the cooking appliance 51 (especially the rear coil 51c) can be widened. As a result, the airflow guider 20 is less likely to interfere with cooking above the cooking appliance 51.

[0035] Thus, the cooking exhaust system 1 makes it possible to achieve both "improved efficiency in capturing contaminated air" and "ease of cooking."

[0036] Next, I will explain the other components.

[0037] As shown in Figure 5, it is preferable that the length 71 of the first inclined portion 21 in the y-direction is longer than the length 72 of the second inclined portion 22 in the y-direction.

[0038] As shown in Figure 6, the total length 60 of the airflow guider 20 in the y direction is to the left lateral It is preferable that the length of the wall 27 in the y-direction is at least twice the length 61.

[0039] The total length 60 of the airflow guider 20 in the y-direction is preferably at least twice the length 62 of the right side wall 28 in the y-direction.

[0040] As shown in Figure 7, it is preferable that the tip portion 21a overlaps with the rear coil 51c in the y-direction. That is, if the rear end of the rear coil 51c is called the rear end portion 51c1, it is preferable that the tip portion 21a is located in front of the rear end portion 51c1. With this configuration, contaminated air above the coils (especially the rear coil 51c) of the cooking appliance 51 can be smoothly guided to the intake port 11.

[0041] Here, it is preferable that the tip portion 21a extends forward from the rear end portion 51c1 to about 1 / 4 to 1 / 2 of the total length of the rear coil 51c in the y direction.

[0042] It is preferable that the airflow guider 20 is provided so as to cover the upper part of the IH exhaust port 51d. With this configuration, the air blown upward from the IH exhaust port 51d (air inside the heating appliance 51) hits the intake surface 25 (first inclined portion 21). This air attracts the surrounding contaminated air toward the intake port 11. As a result, the collection rate of contaminated air can be improved.

[0043] Note that in Figure 7, the airflow guider 20 is shown semi-transparently for convenience.

[0044] (supplement) The following provides further details regarding each embodiment.

[0045] The left side wall 27 and the right side wall 28 are not essential. This is because the effects of this disclosure can be obtained even without them.

[0046] The length 61 of the left side wall 27 in the y-direction may be the same as the length 62 of the right side wall 28 in the y-direction, or it may be a different length.

[0047] The air drawn in from the intake port 11 may be returned to the space where the cooking appliance 51 is located after passing through the blower 2 (circulating system). In other words, the discharge of air in such a circulating system is also included in the discharge of air by the cooking exhaust device 1. In this case, the air purified by an air purification device (not shown) may be returned to the space where the cooking appliance 51 is located.

[0048] The top surface 31a of the table 31 does not need to be a single continuous plate or flat surface. Multiple plates or surfaces may be used, with the plate (surface) on which the heating appliance 51 is installed and the plate (surface) having an opening (an opening communicating with the suction port 11) placed close together, so that they function as a single table. Such a structure is also considered a type of table 31.

[0049] Furthermore, terms indicating relationships between elements such as parallel and perpendicular, terms describing shapes, and numerical ranges do not represent only strict meanings, but also include substantially equivalent ranges, such as differences of a few percent.

[0050] Next, we will explain the effects of this disclosure.

[0051] The length 71 of the first inclined section 21 in the y-direction may be 1.5 to 2.5 times the length 72 of the second inclined section 22 in the y-direction. This configuration further improves both the efficiency of collecting polluted air and the ease of cooking.

[0052] The following items are independent of the claims. While they may be described in detail, these are merely examples and do not restrict the scope of the claims.

[0053] (Item 1) A cooking exhaust device 1 comprising an intake port 11, an airflow guider 20, and a blower 2, The suction port 11 is located on the upper surface 31a of the table 31 on which the cooking appliance 51 is installed, between the cooking appliance 51 and the airflow guider 20. The airflow guider 20 has an intake surface 25 and an opposite surface 26. The suction surface 25 is the surface on the suction port 11 side. The opposite side 26 is the side opposite to the suction port 11. The suction surface 25 has a first inclined portion 21 and a second inclined portion 22. The first inclined portion 21 is located in front of the second inclined portion 22, on the side of the cooking appliance 51. With respect to the horizontal direction, the angle θb at which the second inclined portion 22 is inclined is greater than the angle θa at which the first inclined portion 21 is inclined. The air around the intake port 11 has its direction of travel changed by the first inclined section 21. The air whose direction of travel has been changed by the first inclined section 21 has its direction of travel further changed by the second inclined section 22. The blower 2 may be configured to draw in air from the intake port 11 while its direction of travel is changed by the second inclined section 22.

[0054] This configuration makes it possible to achieve both "improved efficiency in capturing polluted air" and "ease of cooking."

[0055] (Item 2) The airflow guider 20 has a left side wall 27 and a right side wall 28. The suction port 11 is positioned so as to be surrounded by the suction surface 25, the left side wall 27, and the right side wall 28. The tip portion 21a of the first inclined portion 21 may be positioned in front of the left side wall 27 and the right side wall 28.

[0056] This configuration makes it possible to further achieve both "improved collection efficiency of contaminated air" and "ease of cooking." Specifically, if the left side wall 27 or the right side wall 28 is too long in the forward direction, it may hinder cooking. Also, if the tip portion 21a is positioned behind the left side wall 27 or the right side wall 28, the collection efficiency of contaminated air may decrease. By positioning the tip portion 21a of the first inclined portion 21 in front of the left side wall 27 and the right side wall 28, it becomes less likely to hinder cooking, and the collection efficiency of contaminated air can be improved.

[0057] (Item 3) On a horizontal plane, if the direction from the suction port 11 toward the cooking appliance 51 is defined as the y-direction, The total length 60 of the airflow guider 20 in the y-direction is more than twice the length 61 of the left side wall 27 in the y-direction. The airflow guider 20 may be configured such that its total length 60 in the y-direction is at least twice the length 62 of the right side wall 28 in the y-direction.

[0058] This configuration makes it possible to further achieve both "improved efficiency in capturing polluted air" and "ease of cooking."

[0059] (Item 4) On a horizontal plane, if the direction from the suction port 11 toward the cooking appliance 51 is defined as the y-direction, The length 71 of the first inclined portion 21 in the y-direction may be longer than the length 72 of the second inclined portion 22 in the y-direction.

[0060] This configuration makes it possible to further achieve both "improved efficiency in capturing polluted air" and "ease of cooking."

[0061] (Item 5) With respect to the horizontal direction, the angle θa at which the first inclined portion 21 tilts upward toward the front is 20° to 45° (or 25° to 40°). The configuration may also be such that, with respect to the horizontal direction, the angle θb at which the second inclined portion 22 inclins upward toward the front is 50° to 80° (or 60° to 70°).

[0062] This configuration makes it possible to further achieve both "improved efficiency in capturing polluted air" and "ease of cooking."

[0063] (Item 6) If the second inclined section 22 is positioned further back than the heating appliance 51, The rear end 11a of the suction port 11 may be flush with the second inclined portion 22.

[0064] This configuration allows contaminated air to be smoothly guided to the intake port 11, thereby further improving the collection efficiency of contaminated air.

[0065] (Item 7) The heating appliance 51 has a front coil (51a, 51b) and a rear coil 51c. The front coils (51a, 51b) are positioned in front of the rear coil 51c. If the second inclined portion 22 is positioned further back than the heating appliance 51, the tip portion 21a of the first inclined portion 21 may be positioned in front of the rear end portion 51c1 behind the rear coil 51c.

[0066] This configuration allows contaminated air above the coils of the cooking appliance 51 (especially the rear coil 51c) to be smoothly guided to the intake port 11.

[0067] The cooking exhaust system described above has been explained based on examples, but this disclosure is not limited to these examples. Within the scope of this disclosure, various modifications to the examples that a person skilled in the art could conceive, as long as they do not deviate from the spirit of this disclosure, and configurations constructed by combining components from different examples, are also included. [Explanation of symbols]

[0068] 1. Cooking exhaust system 2. Blower 2a Feather 2b motor 11 Inlet 11a End 20 Airflow Guider 21 1st slope section 21a Tip 22 2nd slope part 25 Suction surface 26 Opposite side 26a Top surface 26b Rear 27 Left side wall 28 Right side wall 31 Tables 31a Top surface 31b Front 31c back 31d base 31e Storage space 31f back side 41 Operation section 42 Lighting 51 Cooking machine 51a First front coil 51b Second front coil 51c rear coil 51c1 Rear end 51d IH exhaust vent 52 Cooking Utensils 60 Length 61 Length 62 Length 71 Length 72 Length 90 Airflow 91 Exhaust air duct 92 Exhaust duct 93 beds θa Angle θb angle

Claims

1. A cooking exhaust system comprising an intake port, an airflow guider, and a blower, The aforementioned intake port is provided on the upper surface of the table on which the cooking appliance is installed, between the cooking appliance and the airflow guider. The airflow guider has an intake surface and an opposite surface, The aforementioned suction surface is the surface on the suction port side, The aforementioned opposite surface is the surface opposite to the suction port. The suction surface has a first inclined portion and a second inclined portion, The first inclined portion is provided in front of the second inclined portion, on the side of the cooking appliance. With respect to the horizontal direction, the angle at which the second inclined portion is inclined is greater than the angle at which the first inclined portion is inclined. The air around the intake port changes direction of travel due to the first inclined section. The air whose direction of travel has been changed by the first inclined section has its direction of travel further changed by the second inclined section. The blower is a cooking exhaust device that draws in air from the intake port with the direction of travel changed by the second inclined section.

2. The aforementioned airflow guider has a left side wall and a right side wall, The suction port is arranged so as to be surrounded by the suction surface, the left side wall, and the right side wall. The cooking exhaust device according to claim 1, wherein the tip of the first inclined portion is provided in front of the left side wall and the right side wall.

3. On a horizontal plane, if the direction from the suction port toward the heating appliance is defined as the y-direction, The total length of the airflow guider in the y-direction is at least twice the length of the left side wall in the y-direction. The cooking exhaust device according to claim 2, wherein the total length of the airflow guider in the y-direction is at least twice the length of the right side wall in the y-direction.

4. On a horizontal plane, if the direction from the suction port toward the heating appliance is defined as the y-direction, The cooking exhaust device according to claim 1, wherein the length of the first inclined portion in the y-direction is longer than the length of the second inclined portion in the y-direction.

5. With respect to the horizontal direction, the angle at which the first inclined portion inclins upward toward the front is 20° to 45°. The cooking exhaust device according to claim 1, wherein the angle at which the second inclined portion is inclined upward toward the front, with respect to the horizontal direction, is 50° to 80°.

6. If the second inclined portion is positioned behind the aforementioned heating appliance, The cooking exhaust device according to claim 1, wherein the rear end of the intake port is flush with the second inclined portion.

7. The aforementioned heating appliance has a front coil and a rear coil, The front coil is provided in front of the rear coil, The cooking exhaust device according to claim 1, wherein, if the second inclined portion is positioned rearward from the heating appliance, the tip of the first inclined portion is positioned in front of the rear end of the rear coil at the rear.

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