Heating cooker

Abstract

To provide a heating cooker capable of suppressing occurrence of abnormal noise when closing an exhaust duct.SOLUTION: A heating cooker 10 includes: a baking part 30 baking a food material by using heat transmitted by a heat source part 31; an exhaust duct 41 exhausting smoke generated when baking the food material from the baking part 30; a damper 42 which is configured to be displaceable between a first position where the exhaust duct 41 is in a closed state and a second position where the exhaust duct 41 is in an open state; and an air intake part 60 which is installed at a downstream side position in a flow direction of the smoke of the damper 42 in the exhaust duct 41 and takes in the air inside the exhaust duct 41 on the basis of driving of an exhaust fan 50 exhausting the smoke from the exhaust duct 41 when the damper 42 is at the first position.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] Conventionally, cooking appliances equipped with an exhaust duct for exhausting smoke generated when cooking ingredients have been widely known. For example, Patent Document 1 describes a cooking appliance in which an exhaust fan is arranged upstream of a deodorizing device in the exhaust duct, thereby reducing pressure loss in the exhaust duct caused by the deodorizing device, and setting the output of the exhaust fan low, thereby suppressing noise generated by the exhaust fan. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-59687 Summary of the Invention [Problem to be solved by the invention]

[0004] In conventional technology, for example, the exhaust duct may be closed to prevent flames rising above a frying pan from circulating in the exhaust duct during flambé cooking. In this case, if the exhaust fan continues to operate with the exhaust duct closed, negative pressure may build up inside the exhaust duct, and the air may cut through the gaps between the components that make up the exhaust duct, creating an abnormal noise.

[0005] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cooking device that can suppress the generation of abnormal noise when the exhaust duct is blocked. [Means for solving the problem]

[0006] A cooking device that solves the above problem comprises a grilling section that grills ingredients using heat transferred from a heat source section, an exhaust duct that exhausts smoke generated when the ingredients are grilled from the grilling section, a damper that is configured to be displaceable between a first position that closes the exhaust duct and a second position that opens the exhaust duct, and a gas intake section that is located downstream of the damper in the exhaust duct in the direction of smoke flow, and that takes in gas into the exhaust duct when the damper is in the first position based on the operation of an exhaust fan that exhausts smoke from the exhaust duct.

[0007] According to the above configuration, when the damper is in the first position that closes the exhaust duct, gas is drawn into the exhaust duct through the gas intake section. This prevents negative pressure from building up inside the exhaust duct when the exhaust fan is driven to exhaust smoke from the exhaust duct. This prevents wind noise from being generated when air flows through the gaps between the components that make up the exhaust duct.

[0008] In the above-mentioned cooking device, the gas intake section may have a gas intake port that connects the inside and outside of the exhaust duct, and an extension section that is connected to the gas intake port and extends from the gas intake port toward the inside or outside of the exhaust duct.

[0009] With this configuration, even if oil contained in the smoke generated during cooking adheres to the inner wall of the exhaust duct, the oil travels from the inside of the exhaust duct along the extension and accumulates, thereby preventing the oil contained in the smoke generated during cooking from leaking out of the exhaust duct.

[0010] In the above-mentioned cooking device, the extension portion may be cylindrical and include a bottom surface portion extending horizontally, a side surface portion connected to the bottom surface portion and extending vertically, and a top surface portion connected to the side surface portion and extending horizontally.

[0011] According to the above configuration, even if oil contained in the smoke generated during food grilling travels from the inner wall of the exhaust duct to the top surface of the extension section, the oil travels from the top surface of the extension section to the side surface and then to the bottom surface of the extension section, where it accumulates. The oil that accumulates on the bottom surface of the extension section then flows into the exhaust duct along with the flow of gas taken in through the gas intake section and is discharged downstream of the exhaust duct. This prevents oil contained in the smoke generated during food grilling from leaking out of the exhaust duct, while also preventing the accumulation of such oil in the gas intake section.

[0012] In the above-mentioned cooking device, when the width direction of the extension portion is a direction that intersects both the extension direction from the gas intake port and the thickness direction of the extension portion, the width dimensions of the bottom surface portion and the top surface portion may be larger than the width dimension of the side surface portion.

[0013] With this configuration, even if oil contained in smoke generated during cooking spreads from the inner wall of the exhaust duct to the top surface of the extension, the oil spreads smoothly from the top surface to the side surface and then to the bottom surface of the extension, thereby further preventing oil contained in smoke generated during cooking from accumulating in the gas intake section.

[0014] In the cooking appliance, the extension portion may extend obliquely upward from the gas inlet.

[0015] With this configuration, even if oil contained in the smoke generated during cooking spreads from the inner wall of the exhaust duct to the extension, the oil will accumulate due to gravity from the bottom end of the extension, thereby further preventing oil contained in the smoke generated during cooking from leaking out of the exhaust duct. [Effects of the Invention]

[0016] According to the present invention, it is possible to suppress the generation of abnormal noise when the exhaust duct is blocked. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a schematic diagram showing a general configuration of a cooking device according to an embodiment of the present invention; [Figure 2] FIG. 10 is a schematic diagram of the damper when the exhaust duct is in an open state. [Figure 3] FIG. 10 is a schematic diagram of the damper when the exhaust duct is in a blocked state. [Figure 4] FIG. [Figure 5A] 4A to 4C are diagrams illustrating the operation of the cooking device of the present embodiment. [Figure 5B] 4A to 4C are diagrams illustrating the operation of the cooking device of the present embodiment. [Figure 6A] 4A to 4C are diagrams illustrating the operation of the cooking device of the present embodiment. [Figure 6B] 4A to 4C are diagrams illustrating the operation of the cooking device of the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, an embodiment of a cooking device will be described with reference to the drawings.

[0019] As shown in FIG. 1, the cooking device 10 of this embodiment is a device for heating and cooking ingredients, and has a structure for preventing flames rising above a frying pan when performing flambé, for example, from circulating into the exhaust duct 41.

[0020] The cooking device 10 includes, for example, an air blowing section 20, a baking section 30, and an exhaust section 40.

[0021] The blower 20 includes, for example, a blower duct 21 and a blower fan 22.

[0022] The air duct 21 is hollow and extends vertically. A blower fan 22 is provided at the lower end of the air duct 21. The blower fan 22 blows air into the interior of the air duct 21. The gas blown into the air duct 21 is exhausted to the baking section 30 via an exhaust port 23 provided at the upper end of the air duct 21.

[0023] The baking unit 30 includes, for example, a heat source unit 31, a heat shield unit 32, and a support unit 33. The baking unit 30 bakes food ingredients using heat transferred from the heat source unit 31.

[0024] The heat source unit 31 is made up of, for example, a burner or a heater, and radiates heat generated when fuel is burned or when electricity is converted.

[0025] The heat shield 32 is box-shaped with an open top and is made of a heat insulating material. The heat shield 32 houses the heat source 31. The heat radiated from the heat source 31 is insulated by the heat shield 32, and heat dissipation to the outside of the heat shield 32 is restricted, and the heat is transmitted to the support 33.

[0026] The support portion 33 is made of, for example, a metal plate with electrical heating properties, and uses heat radiated from the heat source portion 31 to heat a pot, frying pan, etc. supported by the support portion 33, thereby cooking ingredients.

[0027] The exhaust unit 40 includes, for example, an exhaust duct 41, a damper 42, an operating lever 43, and a filter 44.

[0028] Exhaust duct 41 exhausts smoke generated when ingredients are grilled from grilling section 30. Exhaust duct 41 is, for example, hollow and extends vertically, with its lower portion bent at right angles multiple times. When exhaust fan 50, which will be described later, is driven, exhaust duct 41 takes in gas blown from blower section 20 through intake port 44 provided at the upper end of exhaust duct 41. The gas blown from blower section 20 contains smoke generated when ingredients are grilled in grilling section 30.

[0029] The damper 42 is rotatably connected to the rotation axis 43A of the operating lever 43. The operating lever 43 is a rod-shaped device extending in one direction. The base 43B of the operating lever 43 is rotatable around the rotation axis 43A. The grip 43C of the operating lever 43 is located at the tip of the operating lever 43 and is exposed to the outside of the exhaust duct 41 for operation. The damper 42 rotates integrally with the rotation axis 43A through operation of the operating lever 43, and is displaceable between a first position that closes the exhaust duct 41 and a second position that opens the exhaust duct 41. For example, when performing flambé, the damper 42 is positioned in the first position that closes the exhaust duct 41 to prevent flames rising above the frying pan from reaching the exhaust duct 41.

[0030] 2, when damper 42 is in the second position where exhaust duct 41 is open, damper 42 is arranged to extend vertically downward from the base end to the tip end of damper 42. In this case, damper 42 is arranged with a gap in the vertical direction relative to magnetic catch 45 fixed to exhaust duct 41, and exhaust duct 41 is in the open state through this gap.

[0031] 2, grip portion 43C of operating lever 43 is raised upward, and damper 42 is swung upward around rotation shaft 43A. When damper 42 is electrostatically attracted to magnetic catch 45, the gap between damper 42 and magnetic catch 45 disappears, and exhaust duct 41 is closed.

[0032] Returning to Figure 1, filter 44 is provided in exhaust duct 41 at a position downstream of damper 42 in the air flow direction. Filter 44 is a grease filter that removes oil contained in smoke generated when ingredients are grilled in grilling section 30. Filter 44 may also be capable of removing odor components and ingredient particles in addition to oil.

[0033] An exhaust fan 50 that exhausts smoke from exhaust duct 41 is embedded in floor surface A on which cooking appliance 10 is placed. Exhaust fan 50 is an external component of cooking appliance 10, and is arranged downstream of exhaust duct 41 in the air flow direction. Exhaust fan 50 is provided in a midpoint of exhaust flow path 51 formed on floor surface A on which cooking appliance 10 is placed. A first end of exhaust flow path 51 faces up and down to exhaust port 23 of exhaust duct 41 that opens on the underside of cooking appliance 10, and a second end of exhaust flow path 51 communicates with the atmosphere. Exhaust fan 50 takes in air from inside exhaust duct 41 through exhaust flow path 51 and exhausts the taken-in air into the atmosphere.

[0034] Next, the configuration of the gas intake section 60 will be described.

[0035] As shown in FIG. 4, the gas intake section 60 has, for example, a gas intake port 61 and an extension section 62.

[0036] The gas inlet 61 penetrates the exhaust duct 41 in the thickness direction, and communicates with the inside and outside of the exhaust duct 41. The gas inlet 61 is a rectangular opening, with its longitudinal direction coinciding with the horizontal direction and its lateral direction coinciding with the vertical direction.

[0037] The extension portion 62 has a rectangular cylindrical shape that follows the opening edge of the gas inlet 61 and includes a bottom surface portion 62A extending horizontally, a side surface portion 62B connected to the bottom surface portion 62A and extending vertically, and a top surface portion 62C connected to the side surface portion 62B and extending horizontally. The extension portion 62 extends in a straight line obliquely upward from the gas inlet 61 toward the outside of the exhaust duct 41. The extension portion 62 is configured so that the opening area is constant throughout the entire extension direction from the gas inlet 61. When the width direction of the extension portion 62 is a direction intersecting both the extension direction from the gas inlet 61 and the thickness direction of the extension portion 62, the width dimensions of the bottom surface portion 62A and the top surface portion 62C are larger than the width dimension of the side surface portion 62B.

[0038] Next, the operation of the cooking device 10 according to this embodiment will be described.

[0039] As shown in Figure 5A, when damper 42 is in the second position in which exhaust duct 41 is open, smoke generated when food ingredients are grilled in grilling section 30 is drawn into exhaust duct 41 through intake port 44 of exhaust duct 41.

[0040] 5B, when damper 42 is displaced to the first position where exhaust duct 41 is closed, exhaust fan 50, which exhausts smoke from exhaust duct 41, continues to be driven, causing negative pressure to build up inside exhaust duct 41. Then, based on the negative pressure built up inside exhaust duct 41, gas is taken into exhaust duct 41 from outside exhaust duct 41 through gas intake section 60. This reduces the magnitude of the negative pressure built up inside exhaust duct 41. Therefore, wind noise caused by air flowing through gaps between components that make up exhaust duct 41 is suppressed.

[0041] 6A, when damper 42 is in the second position that opens exhaust duct 41, oil contained in smoke generated when food ingredients are grilled in grilling section 30 adheres to the inner wall of exhaust duct 41. The oil adhering to the inner wall of exhaust duct 41 flows downward along the inner wall of exhaust duct 41 due to gravity. When the oil adhering to the inner wall of exhaust duct 41 reaches gas intake section 60, it flows from gas intake port 61 to extension section 62 and accumulates. In this case, extension section 62 of gas intake section 60 extends obliquely upward in a straight line from gas intake port 61, thereby preventing oil from leaking from extension section 62 of gas intake section 60 to the outside of exhaust duct 41.

[0042] In particular, in this embodiment, the extension portion 62 of the gas intake portion 60 is in the shape of a rectangular tube and includes a bottom portion 62A, a side portion 62B, and a top portion 62C, so that leakage of oil from the extension portion 62 of the gas intake portion 60 to the outside of the exhaust duct 41 is further suppressed compared to a plate-shaped configuration that does not include the side portion 62B.

[0043] 6B, when damper 42 is displaced to the first position that closes exhaust duct 41, oil adhering to the inner wall of exhaust duct 41 flows by gravity into gas intake section 60. The oil that flows into gas intake section 60 flows through gas intake port 61 to extension section 62, and in extension section 62 flows through top surface section 62C, side surface section 62B, and bottom surface section 62A in that order. The oil that flows to top surface section 62C of extension section 62 then flows into the exhaust duct along the flow of gas taken in through gas intake section 60 and is discharged downstream of the exhaust duct. This prevents oil contained in smoke generated during grilling of ingredients from leaking out of exhaust duct 41 and prevents the oil from accumulating in gas intake section 60.

[0044] In particular, in this embodiment, the widthwise dimensions of bottom surface 62A and top surface 62C of extension portion 62 are larger than the widthwise dimension of side surface 62B. Therefore, even if oil contained in smoke generated during grilling of ingredients travels from the inner wall of exhaust duct 41 to top surface 62C of extension portion 62, such oil smoothly travels from top surface 62C to bottom surface 62A via side surface 62B in extension portion 62 and accumulates there. Therefore, accumulation of oil contained in smoke generated during grilling of ingredients in gas intake portion 60 is further suppressed.

[0045] The above embodiment can also be implemented in the following manner.

[0046] In the above embodiment, the extension portion 62 of the gas intake portion 60 may extend horizontally from the gas inlet 61, or may extend diagonally downward from the gas inlet 61. Furthermore, the extension portion 62 of the gas intake portion 60 does not necessarily need to extend linearly from the gas inlet 61, and any shape, such as a curved shape, may be adopted as long as it is a shape that allows gas to be taken in from outside the exhaust duct 41.

[0047] In the above embodiment, the widthwise dimensions of the bottom surface portion 62A and the top surface portion 62C of the extension portion 62 of the gas intake portion 60 may be smaller than the widthwise dimension of the side surface portion 62B, or may be approximately the same as the widthwise dimension of the side surface portion 62B.

[0048] In the above embodiment, the extending portion 62 of the gas intake portion 60 may omit the side surface portion 62B or the top surface portion 62C, as long as it includes at least the bottom surface portion 62A.

[0049] In the above embodiment, the extension portion 62 of the gas intake portion 60 may extend from the gas intake port 61 toward the inside of the exhaust duct 41, or may extend from the gas intake port 61 toward both the inside and outside of the exhaust duct 41.

[0050] In the above embodiment, the gas intake portion 60 may omit the extension portion 62.

[0051] The above-described embodiments are intended to facilitate understanding of the present invention and are not intended to limit the scope of the present invention. The present invention may be modified or improved without departing from its spirit, and equivalents are also included within the scope of the present invention. In other words, designs modified by those skilled in the art as appropriate are also encompassed within the scope of the present invention as long as they incorporate the characteristics of the present invention. For example, the elements of the embodiments, as well as their arrangement, materials, conditions, shape, size, etc., are not limited to those exemplified and can be modified as appropriate. Furthermore, the elements of the embodiments can be combined to the extent technically possible, and such combinations are also encompassed within the scope of the present invention as long as they incorporate the characteristics of the present invention.

[0052] Next, the technical ideas that can be understood from the above-described embodiment and modifications will be described below. [Appendix 1] a baking unit that bakes food using heat transferred from the heat source unit; An exhaust duct that exhausts smoke generated when baking food from the baking section; a damper configured to be displaceable between a first position that closes the exhaust duct and a second position that opens the exhaust duct; a gas intake section that is provided in the exhaust duct at a position downstream of the damper in the smoke flow direction, and that takes in gas into the exhaust duct based on the operation of an exhaust fan that exhausts smoke from the exhaust duct when the damper is in the first position; A heating cooker comprising:

[0053] [Appendix 2] The gas intake section is a gas intake port that communicates the inside and outside of the exhaust duct; an extension portion connected to the gas inlet and extending from the gas inlet toward the inside or outside of the exhaust duct; 2. The cooking device according to claim 1,

[0054] [Appendix 3] The heating cooker described in Appendix 2, wherein the extension portion is cylindrical and includes a bottom surface portion extending horizontally, a side surface portion connected to the bottom surface portion and extending vertically, and a top surface portion connected to the side surface portion and extending horizontally.

[0055] [Appendix 4] A cooking device as described in Appendix 3, wherein when the width direction of the extension portion is a direction intersecting both the extension direction from the gas intake port and the thickness direction of the extension portion, the width dimensions of the bottom surface portion and the top surface portion are larger than the width dimensions of the side surface portion.

[0056] [Appendix 5] 5. The cooking device according to any one of claims 2 to 4, wherein the extension portion extends obliquely upward from the gas inlet. [Explanation of symbols]

[0057] 10...heating cooker, 20...air blowing section, 21...air blowing duct, 22...air blowing fan, 30...grilling section, 31...heat source section, 32...heat shielding section, 33...support section, 40...exhaust section, 41...exhaust duct, 42...damper, 43...operating lever, 44...filter, 50...exhaust fan, 51...exhaust flow path, 60...gas intake section, 61...gas intake port, 62...extension section, 62A...bottom section, 62B...side section, 62C...top section.

Claims

1. a baking unit that bakes food using heat transferred from the heat source unit; An exhaust duct that exhausts smoke generated when baking food from the baking section; a damper configured to be displaceable between a first position that closes the exhaust duct and a second position that opens the exhaust duct; a gas intake section that is provided in the exhaust duct at a position downstream of the damper in a smoke flow direction, and that takes in gas into the exhaust duct based on the operation of an exhaust fan that exhausts smoke from the exhaust duct when the damper is in the first position; Equipped with Heating cooker.

2. The gas intake section is a gas intake port that communicates the inside and outside of the exhaust duct; an extension portion connected to the gas inlet and extending from the gas inlet toward the inside or outside of the exhaust duct; having The cooking device according to claim 1 .

3. The extension portion is cylindrical and includes a bottom surface portion extending horizontally, a side surface portion connected to the bottom surface portion and extending vertically, and a top surface portion connected to the side surface portion and extending horizontally. The cooking device according to claim 2 .

4. When the width direction of the extension portion is a direction intersecting both the extension direction from the gas inlet port and the thickness direction of the extension portion, the width dimensions of the bottom surface portion and the top surface portion are larger than the width dimensions of the side surface portion. The cooking device according to claim 3.

5. The extension portion extends obliquely upward from the gas inlet. The cooking device according to claim 2 .

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