Heating cooker

The cooking device addresses the issue of water vapor condensation in exhaust gas by incorporating a separation and drainage system, ensuring reduced contamination and improved installation safety.

JP7611507B2Active Publication Date: 2025-01-10PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
View PDF 5 Cites 0 Cited by

Patent Information

Application Number
JP2020144777
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2020-08-28
Publication Date
2025-01-10
Estimated Expiration
2040-08-28

AI Technical Summary

Technical Problem

In existing cooking devices, exhaust gas containing high water vapor can cause water condensation in the exhaust duct, leading to dripping onto the installation surface, posing safety and installation ease issues.

Method used

A cooking device with a separation section that condenses and separates water vapor from exhaust gas, featuring a drainage part to collect condensed water and an exhaust section to discharge the dehumidified gas, along with a protrusion design to prevent water from dripping onto the casing.

Benefits of technology

Effectively treats exhaust gas by reducing water vapor discharge, preventing stains and contamination on the device's outer surface and surrounding areas.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 0007611507000001
    Figure 0007611507000001
  • Figure 0007611507000002
    Figure 0007611507000002
  • Figure 0007611507000003
    Figure 0007611507000003
Patent Text Reader

Abstract

To provide a technology for appropriately treating exhaust air of a heating cooker.SOLUTION: A heating cooker 1 includes: a housing 3; a heating chamber provided in the housing 3; an exhaust port formed in the heating chamber for exhausting gas in the heating chamber; and a separation part 30 condensing at least part of water vapor included in the gas exhausted through the exhaust port. The separation part 30 includes: a space for condensing the water vapor included in the gas exhausted through the exhaust port; a drain part for draining water condensed in the space into the inside of the housing; and an exhaust part provided at the upper part of the separation part 30 and exhausting the remaining gas from which at least part of the water vapor is separated to the outside of the housing.SELECTED DRAWING: Figure 3
Need to check novelty before this filing date? Find Prior Art

Description

[Technical field]

[0001] The present disclosure relates to a cooking device that heats an object to be heated, such as food. [Background technology]

[0002] Since the air inside the heating chamber of a cooking device also becomes hot, techniques for lowering the temperature of exhaust air have been developed to improve ease of installation and safety (see, for example, Patent Document 1).

[0003] Patent Document 1 discloses a cooking appliance having an exhaust passage having one end connected downstream of a first exhaust port above a heating chamber and the other end connected upstream of a second exhaust port, and an external exhaust duct connected downstream of the second exhaust port, the external exhaust duct having an external exhaust port formed therein which is formed closer to the center than the second exhaust port, and a protrusion between the second exhaust port and the external exhaust port of the external exhaust duct for changing the direction of exhaust air flow. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2017-83100 A Summary of the Invention [Problem to be solved by the invention]

[0005] The inventors recognized a new problem in the cooking device disclosed in Patent Document 1, in that when the exhaust air contains a large amount of water vapor, water condenses in the exhaust duct may seep out of the exhaust duct and drip onto the surface on which the cooking device is placed, for example.

[0006] The present disclosure provides techniques for more appropriately treating exhaust gas from a cooking appliance. [Means for solving the problem]

[0007] The cooking device of the present disclosure includes a housing, a heating chamber provided inside the housing, an exhaust port provided in the heating chamber for exhausting gas inside the heating chamber, and a separation unit that condenses and separates at least a portion of the water vapor contained in the gas exhausted from the exhaust port. The separation unit includes a space for condensing the water vapor contained in the gas exhausted from the exhaust port, a drainage unit for draining the water condensed in the space into the housing, and an exhaust unit provided above the separation unit for exhausting the remaining gas from which at least a portion of the water vapor has been separated to the outside of the housing. Effect of the Invention

[0008] According to the cooking device of the present disclosure, exhaust gas can be appropriately treated. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a front perspective view of a cooking device with the door closed; [Diagram 2] FIG. 1 is a front perspective view of a cooking device with the door removed; [Diagram 3] A rear perspective view of the cooking device [Figure 4] FIG. 1 is a front perspective view of a cooking device according to a first embodiment with a housing removed; [Diagram 5] FIG. 1 is a front perspective view of a separation portion of a cooking device according to a first embodiment; [Figure 6] 1A and 1B are a front view, a side view, a rear view, and a top view of a separation part of a heating cooker according to a first embodiment; [Figure 7] FIG. 1 is a partial enlarged view showing a state in which a separation unit of a cooking device according to a first embodiment is installed in a housing; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, the embodiments will be described in detail with reference to the drawings. However, more detailed description than necessary may be omitted. For example, detailed description of already well-known matters or duplicate description of substantially the same configuration may be omitted.

[0011] It should be noted that the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0012] (Embodiment 1) Hereinafter, the first embodiment will be described with reference to FIGS.

[0013] [1-1. Configuration] Figures 1 to 3 show the appearance of a cooking device 1 according to an embodiment of the present disclosure. Figure 1 is a front perspective view of the cooking device 1 with a door 7 closed. Figure 2 is a front perspective view of the cooking device 1 with the door 7 removed. Figure 3 is a rear perspective view of the cooking device 1.

[0014] The cooking device 1 comprises a housing 3, a heating chamber 5 arranged within the housing 3, a door 7 that can be opened and closed to cover an opening 3b provided in a front frame 3a that forms the front surface of the housing 3, and an operation panel 11 provided on the front right side of the heating chamber 5.

[0015] Heating chamber 5 is provided with a microwave radiation port for radiating microwaves generated by a microwave oscillator such as a magnetron into heating chamber 5. An object to be heated (food) placed in heating chamber 5 is heated by the microwaves radiated from the microwave radiation port.

[0016] A tank for storing water for generating steam to be sent to the heating chamber 5 is provided below the bottom wall. The water stored in the tank is supplied to a steam generating unit (not shown) and becomes steam. The generated steam is supplied to the heating chamber 5 via a steam pipe that connects the steam generating unit and the heating chamber 5.

[0017] The door 7 is pivotally supported by a horizontal rotation shaft below the opening 3b on the housing 3 so as to be able to open and close. When the user pulls a handle 7a attached to the top of the door 7 to rotate the door 7 to a horizontal position, the heating chamber 5 is opened. When the door 7 is rotated to a vertical position, the heating chamber 5 is closed.

[0018] A display unit and an operation unit are arranged on the operation panel 11. The display unit is, for example, a liquid crystal screen, and displays a menu screen, etc. The operation panel 11 is provided with, for example, push buttons and dials, and receives instructions for the cooking appliance 1 from a user.

[0019] A separation section 30 is provided at the upper right corner of the rear surface of the housing 3 of the cooking device 1 for condensing and separating at least a part of the water vapor contained in the gas exhausted from the heating chamber 5. The separation section 30 will be described later.

[0020] FIG. 4 is a front perspective view of the cooking device 1 according to the first embodiment with the housing 3 removed. An exhaust port 40 for exhausting gas inside the heating chamber 5 is provided at the rear lower part of the left side surface 5a of the heating chamber 5. The air exhausted from the exhaust port 40 rises in the space between the housing 3 and the left side surface 5a of the heating chamber 5, and is introduced into the inside of the separation part 30 from an inlet 41 provided at the upper left of the rear surface 5b of the housing 3. Water condensed in the separation part 30 is returned to the inside of the housing 3 from a water receiving port 42 provided below the inlet 41 on the rear surface 5b of the housing 3. These configurations are provided on the opposite side of the machine chamber 13 in which electronic components such as a magnetron and a control board for controlling heating in the heating chamber 5 are housed. This makes it possible to prevent water vapor from flowing into the machine chamber 13 and affecting the electronic components.

[0021] 5 is a front perspective view of the separation unit 30 of the cooking device 1 according to the first embodiment. The separation unit 30 includes a space 31 for condensing at least a part of the water vapor contained in the gas introduced from the inlet 41 and a side surface 31a constituting the space 31, a drainage unit 32 for draining the water condensed in the space 31 or the side surface 31a into the housing 3, and an exhaust unit 34 provided above the separation unit 30 for exhausting the remaining gas from which at least a part of the water vapor has been separated to the outside of the housing 3. This can reduce the water vapor contained in the exhaust gas discharged to the outside of the housing 3, thereby suppressing dirt on the outer surface of the housing 3 and the installation surface.

[0022] Drainage section 32 is connected to a water inlet 42 provided in housing 3, and is configured to guide drainage from drainage section 32 to the inside of water inlet 42. A protrusion 33 is provided below drainage section 32 to prevent water from dripping outside housing 3 from between drainage section 32 and water inlet 42. The dimension of protrusion 33 is equal to or greater than the plate thickness dimension of rear surface 5b of housing 3, and protrusion 33 is provided to protrude from rear surface 5b of housing 3. This makes it possible to prevent the installation surface of housing 3 from becoming dirty.

[0023] The exhaust section 34 is configured so that the exhaust gas flows toward the center of the upper surface of the housing 3. That is, the exhaust section 34 is opened so as to be inclined inward from the front-rear direction of the upper surface of the housing 3. This can prevent the exhaust gas from flowing toward the side walls and shelves of the cooking appliance 1. The exhaust section 34 is configured so that the direction in which the exhaust gas flows is equal to or less than a predetermined angle from the upper surface of the housing 3. That is, the exhaust section 34 is opened so as to be inclined downward from the vertical direction. The predetermined angle may be set according to the height of the space that should be secured above in the installation conditions of the cooking appliance 1. For example, even if a shelf board or the like is present at the height of the lower limit value of the height of the space that should be secured above in the installation conditions of the cooking appliance 1, the exhaust section 34 may be configured so that the exhaust gas does not flow toward the shelf board. This can prevent the exhaust gas from flowing toward the upper walls and shelves of the cooking appliance 1. In addition, in order to prevent water vapor from condensing on the upper surface of the housing 3, the exhaust section 34 may be configured so that the direction in which the exhaust gas flows is equal to or more than a predetermined angle upward from the upper surface of the housing 3.

[0024] 6 is a front view, a side view, a rear view, and a top view of the separation unit 30 of the cooking device 1 according to the first embodiment. Side surfaces 31b on both sides of the drainage unit 32 are connected to the drainage unit 32 via side surfaces 31d that are inclined so that the width is narrower at the bottom than at the top. This allows water condensed in the space 31 or the side surfaces 31b to be efficiently drained into the housing 3. Side surface 31a or the bottom surface that faces the drainage unit 32 is connected to the drainage unit 32 via side surface 31c that is inclined toward the drainage unit 32. This allows water condensed in the space 31 or the side surfaces 31a to be efficiently drained into the housing 3.

[0025] 7 is a partial enlarged view showing a state in which the separation unit 30 of the cooking device 1 according to the first embodiment is installed in the housing 3. The separation unit 30 is installed on the back surface of the housing 3 so that at least a part of the protrusion 33 is inserted inside the water receiving port 42 of the housing 3. In addition, both ends of the protrusion 33 in the longitudinal direction have an upwardly inclined shape. This makes it possible to prevent water from dripping from between the drainage unit 32 and the water receiving port 42 to the outside of the housing 3, thereby preventing the installation surface of the housing 3 from becoming dirty.

[0026] [1-2. Operation] The operation and function of the cooking device 1 configured as above will be described below.

[0027] The user pulls the handle 7a toward himself to open the door 7, and places the object to be heated in the heating chamber 5. The user returns the handle 7a to close the door 7, and sets the heating conditions such as the heating time and the heating temperature by operating the operation panel 11. The control unit of the cooking device 1 controls the magnetron and the like so that the object to be heated is heated under the set heating conditions.

[0028] The gas heated in the heating chamber 5 is introduced into the separation section 30 through an exhaust port 40 provided at the rear lower part of the left side surface 5a of the heating chamber 5 and an inlet port 41 provided at the upper left part of the rear surface 5b of the housing 3. Water condensed in the separation section 30 is returned to the inside of the housing 3 from a water receiving port 42 provided below the inlet port 41 on the rear surface 5b of the housing 3. The remaining air from which at least a part of the water vapor has been separated in the separation section 30 is exhausted to the outside from an exhaust section 34 provided above the separation section 30.

[0029] According to the technology of the present embodiment, it is possible to reduce water vapor contained in the exhaust air discharged to the outside of the housing 3, thereby suppressing dirt on the outer surface of the housing 3, the installation surface, etc. In particular, when the heated object is heated by water vapor, a large amount of water vapor is contained in the exhaust air, but according to the technology of the present embodiment, even in such a case, it is possible to sufficiently reduce the water vapor contained in the exhaust air discharged to the outside of the housing 3, thereby suppressing dirt on the outer surface of the housing 3, the installation surface, etc.

[0030] [1-3. Effects, etc.] As described above, in this embodiment, the cooking device includes a housing, a heating chamber provided inside the housing, an exhaust port provided in the heating chamber for exhausting the gas inside the heating chamber, and a separation unit that condenses and separates at least a part of the water vapor contained in the gas exhausted from the exhaust port, and the separation unit includes a space for condensing the water vapor contained in the gas exhausted from the exhaust port, a drainage unit for draining the water condensed in the space into the housing, and an exhaust unit provided above the separation unit for exhausting the remaining gas from which at least a part of the water vapor has been separated to the outside of the housing. This makes it possible to prevent dirt from being generated on the installation surface of the cooking device or on the surrounding walls.

[0031] In this embodiment, the separation section is provided on the outer surface of the housing, and the drainage section is connected to an opening provided in the housing and has a protrusion for receiving water so as not to drip from between the drainage section and the opening, thereby making it possible to prevent soiling of the installation surface of the cooking appliance and surrounding walls.

[0032] In the present embodiment, both ends of the protrusion are inclined upwards, which can prevent the surface on which the cooking appliance is placed and surrounding walls from becoming dirty.

[0033] In the present embodiment, the drainage section forming the space has both side surfaces each having a shape that narrows toward the drainage section, thereby enabling condensed water to be efficiently drained.

[0034] In this embodiment, the side surface or bottom surface facing the drainage section that constitutes the space has a shape that is inclined toward the drainage section, thereby enabling condensed water to be efficiently drained.

[0035] In the present embodiment, the exhaust section is configured so that the exhaust air flows toward the center of the top surface of the housing, thereby making it possible to prevent the wall or shelf above the cooking appliance from becoming dirty.

[0036] In the present embodiment, the exhaust section is configured so that the direction in which the exhaust air flows is at a predetermined angle or less from the top surface of the housing, thereby making it possible to prevent the wall or shelf above the cooking appliance from becoming soiled.

[0037] (Other embodiments) As described above, the first embodiment has been described as an example of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can be applied to embodiments in which modifications, substitutions, additions, omissions, etc. are made. In addition, it is also possible to combine the components described in the first embodiment to create new embodiments.

[0038] Therefore, other embodiments will be exemplified below.

[0039] In the first embodiment, a cooking device that uses microwaves, a heater, and steam to heat an object to be heated has been described, but the technology of the present disclosure can be applied to any type of cooking device.

[0040] In embodiment 1, the machine chamber 13 is provided to the right of the heating chamber 5 and the separation section 30 is provided to the left of the housing 3, but the machine chamber 13 may be provided to the left of the heating chamber 5 and the separation section 30 may be provided to the right of the housing 3.

[0041] In the first embodiment, the separation unit 30 is provided on the rear surface of the housing 3 . However, the separation unit 30 may be provided inside the housing 3 .

[0042] It should be noted that the above-described embodiments are intended to illustrate the technology of the present disclosure, and various modifications, substitutions, additions, omissions, and the like can be made within the scope of the claims or their equivalents. [Industrial Applicability]

[0043] The present disclosure can be used in a cooking device that heats an object to be heated, such as food. [Explanation of symbols]

[0044] 1 Cooker 3. Chassis 3a Front frame 3b aperture 5 Heating chamber 5a Left side 5b Rear 7 Doors 7a Handle 11 Operation Panel 13 Machine room 30 Separation part 31 Space 31a side 31b Side 31c side 31d side 32 Drainage section 33 Protrusion 34 Exhaust section 40 Exhaust port 41 Introduction 42 Water intake

Claims

1. A housing and A heating chamber provided inside the housing; an exhaust port provided at a lower portion of the heating chamber for exhausting gas inside the heating chamber; an inlet provided at an upper portion of the housing; a separation section that condenses and separates at least a portion of the water vapor contained in the gas exhausted from the exhaust port; Equipped with The separation unit is a space for condensing water vapor contained in the gas exhausted from the exhaust port; a drainage section for draining water condensed in the space into the housing; an exhaust section provided above the separation section for exhausting a remaining gas from which at least a portion of the water vapor has been separated to the outside of the housing; Equipped with The gas exhausted from the exhaust port is mixed with the gas between the housing and the heating chamber, and then is supplied to the separation section via the inlet. Heating cooker.

2. A housing, A heating chamber provided inside the housing; an exhaust port provided in the heating chamber for exhausting gas inside the heating chamber; a separation section that condenses and separates at least a portion of the water vapor contained in the gas exhausted from the exhaust port; Equipped with The separation unit is a space for condensing water vapor contained in the gas exhausted from the exhaust port; a drainage section for draining water condensed in the space into the housing; an exhaust section provided above the separation section for exhausting a remaining gas from which at least a portion of the water vapor has been separated to the outside of the housing; Equipped with The separation portion is provided on an outer surface of the housing, The drainage portion is connected to an opening provided in the housing, A protrusion is provided to prevent water from dripping between the drainage portion and the opening. Heating cooker.

3. The cooking device according to claim 2 , wherein both ends of the protrusion are inclined upward.

4. The drainage portion has side surfaces on both sides that define the space, and the side surfaces have a shape that narrows toward the drainage portion. The cooking device according to any one of claims 1 to 3.

5. The side surface or bottom surface facing the drainage section that constitutes the space has a shape that is inclined toward the drainage section. The cooking device according to any one of claims 1 to 4.

6. The exhaust section is configured so that exhaust air flows toward the center of the top surface of the housing. The cooking device according to any one of claims 1 to 5.

7. The exhaust section is configured so that the direction in which the exhaust air flows is equal to or smaller than a predetermined angle from the top surface of the housing. The cooking device according to any one of claims 1 to 6.

Citation Information

Patent Citations

  • Heating cooker

    JP2008051360A

  • Heating cooker

    JP2017083100A

  • A steam generator

    KR100747364B1

  • Rotisserie oven and hood

    US20070102418A1

  • Heating cooking device

    WO2012070488A1