JP7346410B2 - heating cooker - Google Patents

Description

The present invention relates to a cooking device, and particularly to a cooking device that performs cooking using superheated steam.

One type of heating cooker is a heating cooker that performs cooking using superheated steam. In such a heating cooker, the steam generating electric heater included in the steam generating device that generates heating steam and the circuit board for controlling the operation of the steam generating electric heater become high temperature, which shortens the lifespan of the circuit components. Otherwise, problems such as malfunction of the microcomputer may occur. For this reason, the heating cooker lowers the temperature of the electronic component by applying cooling air to the electronic component.

However, in conventional heating cookers, electronic components are cooled by blowing air from a cooling fan installed in the heating cooker, so in order to further cool electronic components, the capacity of the cooling fan must be reduced. It was necessary to raise the temperature and install additional cooling fans.

Therefore, in the microwave oven disclosed in Patent Document 1, when operated as an oven, the cooling fan that cools the magnetron is operated even when the oven does not use the magnetron, so that part of the cooling air that was used exclusively for the magnetron is operated. By using this as cooling air for electronic components, the temperature of electronic components can be reduced without increasing the capacity of the cooling fan or installing additional cooling fans.

Japanese Patent Publication “Unexamined Patent Publication No. 2007-327673”

However, in the microwave oven disclosed in Patent Document 1, the cooling air used exclusively for the magnetron is used to cool the electronic components, so it is necessary to add a separate ventilation path from the original ventilation path. The air path for sending air for cooling becomes complicated. For this reason, a problem arises in that the air from the cooling fan does not sufficiently hit the electronic components, making it impossible to efficiently cool the electronic components.

One aspect of the present invention aims to realize a heating cooker that can efficiently cool electronic components.

In order to solve the above problems, a heating cooker according to one aspect of the present invention is a heating cooker that performs cooking using at least water vapor, and the heating cooker generates the above-mentioned water vapor and supplies it to a heating chamber. and a pipe for supplying water to the steam generating section, the pipe being disposed in at least a part of an air passage through which cooling air blows to electronic components to be cooled, and the steam generating section and the pipe supplying water to the steam generating section. The tank for supplying water to the steam generating section is arranged diagonally when the heating chamber is viewed from the front, when the direction in which the door of the heating cooker opens is the front side. It is said that

According to one aspect of the present invention, it is possible to efficiently cool electronic components.

1 is a front view of a heating cooker according to Embodiment 1 of the present invention. FIG. 2 is a functional block diagram of the cooking device shown in FIG. 1. FIG. FIG. 2 is a schematic side view of the configuration of the cooking device shown in FIG. 1 with the side panel on the side where the steam generator is installed removed. FIG. 2 is a schematic bottom view of the cooking device shown in FIG. 1 with the bottom panel removed. FIG. 2 is a schematic configuration side view of the cooking device shown in FIG. 1 with a side panel on the opposite side to the side where the steam generator is provided removed.

[Embodiment 1]
(General explanation of heating cooker)
FIG. 1 is a front view of a heating cooker 1 according to the present embodiment, in which (a) shows a state in which a door (opening/closing door) 3 is closed, and (b) shows a state in which the door 3 is opened. The heating cooker 1 is equipped with a magnetron (not shown) that generates microwaves and a steam generator 11 (FIG. 2), and is capable of microwave cooking and steam, especially superheated steam heated to a temperature exceeding 100°C. This is a heating cooker that performs water oven cooking using water ovens.

As shown in FIG. 1, the heating cooker 1 includes a rectangular parallelepiped-shaped casing 2 and a door 3, and a space surrounded by the casing 2 serves as a heating chamber 2a for storing objects to be heated. Note that the magnetron is provided inside the casing 2 (for example, on the opposite side of the door 3 across the heating chamber 2a).

The door 3 is an opening/closing door for opening and closing the opening 2b of the heating refrigerator 2a, and includes a window (window portion) 3a arranged at a position facing the heating refrigerator 2a, and a frame (frame portion) 3b surrounding the window 3a. Equipped with. Heat-resistant glass or heat-resistant transparent resin is fitted into the window 3a so that the heating chamber 2a can be looked into. The frame 3b is made of a non-metallic material, such as resin.

The door 3 is provided so as to be able to open and close the heating chamber 2a, and rotates approximately around the lower end side, and a handle 4 is attached to the upper side as a user aid for opening and closing the door 3. In the present embodiment, the door 3 is opened and closed by rotating approximately around the bottom side of the door 3; however, the present invention is not limited to this. The door 3 may be configured to open and close by rotating around the center. Details of the door 3 will be described later.

Further, a shield material (not shown) having a size that covers the entrance opening 2b of the heating chamber 2a is formed on the surface of the door 3 facing the heating chamber 2a.

The heating cooker 1 further includes a display/operation unit (operation panel) 5 provided on the front surface of the door 3 for displaying various information regarding the heating cooker 1 and accepting operations on the heating cooker 1. There is. The display operation section 5 is provided with a dial 6, buttons 7, and a display panel 8 that displays various information such as operation information. Note that the display operation unit 5 may be configured as, for example, a touch panel without using physical members such as the dial 6 or the buttons 7. The display operation section 5 is connected to a control section 10, which will be described later, and inputs and outputs information to and from the control section 10. The cooking device 1 including the control unit 10 will be described below.

(Functional block of heating cooker 1)
FIG. 2 is a functional block diagram of the cooking device 1. As shown in FIG. The heating cooker 1 includes a control section 10, as shown in FIG. The control unit 10 is connected to a display operation unit 5, a steam generation unit 11, a microwave heating unit 12, an oven heating unit 13, a cooling unit 14, an antenna rotation drive unit 15, a pump drive unit 16, and a temperature sensor 17. The control unit 10 includes a heating control unit 10a that mainly performs controls related to heating cooking, and a display control unit 10b that performs display control of the display panel 8 of the display operation unit 5. Therefore, the heating control section 10a includes the dial 6 and buttons 7 of the display operation section 5, the steam generation section 11, the range heating section 12, the oven heating section 13, the cooling section 14, the antenna rotation drive section 15, the pump drive section 16, the temperature It is connected to sensor 17. On the other hand, the display control section 10b is connected to the display panel 8 of the display operation section 5.

The steam generator 11 is driven when the heating cooker 1 performs cooking using superheated steam, is supplied with water from a water supply tank (not shown), and heats the water to generate steam. The generated steam is supplied into the heating chamber 2a of the cooking device 1. The steam generated by the steam generator 11 is superheated steam (steam with a temperature higher than 100° C.) or steam with a lower temperature than that. The temperature of water vapor can be adjusted as appropriate. Moreover, the water vapor supplied into the heating chamber 2a heats the food (subject to be heated) placed inside the heating chamber 2a.

The microwave heating section 12 is a magnetron (microwave generator) used when the cooking device 1 performs microwave cooking, and the oven heating section 13 is a heater when the cooking device 1 performs oven cooking. The cooling unit 14 is a drive motor that drives a cooling fan (not shown) for cooling electronic components in the heating cooker 1 when all cooking is performed by the heating cooker 1.

The antenna rotation drive unit 15 rotates the antenna 18 that emits microwaves during microwave cooking.

When operating the steam generating section 11, the pump driving section 16 drives the pump 19 for supplying water in the tank 20 to the steam generating section 11.

The temperature sensor 17 is made of, for example, a thermistor, and detects the temperature inside the heating chamber 2a. The control unit 10 controls the operation of devices related to cooking, such as the steam generation unit 11, based on the settings on the display and operation unit 5, the temperature detected by the temperature sensor 17, and the like.

(ventilation path)
3 shows a state in which the side panel of the heating cooker 1 on which the steam generating section 11 is installed is removed, FIG. 4 shows a state in which the bottom panel of the heating cooker 1 is removed, and FIG. The cooking device 1 is shown with the back panel removed.

As shown in FIG. 3, the cooking device 1 is provided with an air passage 31 for blowing cooling air from the bottom side toward the top side. The air passage 31 sends cooling air blown from an opening 41a provided below the cooking device 1 to a temperature sensor 33 disposed near the steam generating section 11 provided above the cooking device 1; It is formed to lead to a heater terminal section 32 provided in the steam generating section 11, an interior light 34 that illuminates the inside of the heating chamber 2a, and heater terminal sections 35 and 36 provided on the top surface of the heating chamber 2a.

Therefore, in the air passage 31, two wall members 31a and 31b extending from the opening 41a to the vicinity of the electronic components to be cooled (temperature sensor, interior light, terminal part of the heater) are disposed facing each other, and the upper part Openings 31c and 31d for blowing out cooling air are formed in the openings 31c and 31d. The cooling air blown out from the opening 31c mainly hits the temperature sensor 33, the heater terminal 32 provided in the steam generating section 11, and the heater terminal 35 provided on the top surface of the heating chamber 2a, and is blown out from the opening 31d. The cooling air mainly hits the interior light 34 and the terminal portion 36 of the heater provided on the top surface of the heating refrigerator 2a.

The cooling air blown out from the opening 41a is obtained by rotating a fan (not shown) provided on the bottom side of the cooking device 1, as shown in FIG.

(Pipe placed in the ventilation path)
A pipe 21 for guiding water to the steam generating section 11 is arranged in the air passage 31 . That is, the electronic components to be cooled (the temperature sensor 33, the terminal section 32 of the heater provided in the steam generating section 11, the terminal sections 35 and 36 of the heater provided on the top surface of the heating chamber 2a, and the interior light 34) The pipe 21 is arranged in the air passage 31 through which cooling air flows. This pipe 21 is a pipe that guides water pumped out from the tank 20 by the pump 19 to the steam generating section 11, as shown in FIG.

In this embodiment, a pipe 21 through which water flows is arranged in the air passage 31. As a result, the cooling air flowing through the air passage 31 hits the pipe 21, so that the cooling air flowing through the air passage 31 is cooled by the pipe 21 through which water is flowing. Therefore, electronic components that require cooling can be effectively cooled.

Moreover, the temperature of the water flowing through the pipe 21 increases by exchanging heat with the cooling air, so that the water vapor generating section 11 can efficiently generate superheated steam with less energy consumption.

Furthermore, in this embodiment, the steam generating unit 11 and the tank 20 are arranged diagonally when the heating chamber 2a is viewed from the front, when the direction in which the door 3 of the cooking device 1 opens is the front side. ing. That is, when the direction in which the door 3 opens is taken as the front, the steam generating section 11 is arranged on the upper left side when looking at the heating chamber 2a from the front, and the tank 20 is arranged on the lower right side when looking from the front. . Therefore, the pipe 21 extends from the tank 20 located on the lower right side when viewed from the front to the steam generating section 11 located on the upper left side when viewed from the front. As a result, the pipe 21 disposed in the air passage 31 becomes longer, so the time period during which the cooling air and the pipe 21 are in contact becomes longer, and the cooling air can be cooled more effectively.

[Embodiment 2]
Other embodiments of the invention will be described below. For convenience of explanation, members having the same functions as the members described in the above embodiment are given the same reference numerals, and the description thereof will not be repeated.

In the cooking device of this embodiment, the pipe 21 is arranged along the ventilation path. Here, the air duct includes an air duct 31 (FIG. 3) on the side where the steam generating section 11 of the cooking device 1 is installed, and blows air obtained from a fan provided on the bottom side of the cooking device 1. It includes a route leading to road 31.

In this way, by arranging the pipes 21 in almost all the air passages through which the cooling air flows, the time during which the cooling air contacts the pipes 21 becomes longer, thereby increasing the cooling effect of the cooling air. Thereby, electronic components that require cooling can be cooled more effectively.

[Embodiment 3]
Other embodiments of the invention will be described below. For convenience of explanation, members having the same functions as the members described in the above embodiment are given the same reference numerals, and the description thereof will not be repeated.

In the heating cooker 1 of the present embodiment, the pipe 21 includes electronic components to be cooled (temperature sensor 33, heater terminal 32 provided in the steam generating section 11, heater terminal provided on the top surface of the heating chamber 2a). 35, 36, and the interior light 34).

According to the above configuration, the pipe 21 that supplies water to the steam generating section 11 is placed close to the electronic components to be cooled, so that the cooling air is placed close to the electronic components to be cooled. Cooling takes place. Thereby, the cooling air can be maintained in a cooled state until immediately before it is blown onto the electronic components, so that the electronic components can be cooled more effectively.

[Modified example]
In Embodiments 1 to 3, the pipe 21 does not have a structure specifically for producing a cooling effect, but the pipe 21 may have a structure for producing a cooling effect. For example, it is possible to cool the cooling air more effectively by increasing the surface area of the pipe 21 by attaching a plurality of fins to the surface of the pipe 21.

Furthermore, in the first to third embodiments described above, an example has been described in which the installation position of the steam generation section 11 and the installation position of the tank 20 are diagonally located when the heating chamber 2a is viewed as a rectangular parallelepiped. 20 may be installed on the same side. As described above, the installation positions of the steam generating section 11 and the tank 20 are not particularly limited, but may be any position where the pipe 21 can be placed in the air passage 31 that guides cooling air to the electronic components.

The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. are also included within the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment.

1 Cooking device 2 Casing 2a Heating chamber 2b Opening 3 Door 3b Frame 4 Handle 5 Display operation section 6 Dial 7 Button 8 Display panel 10 Control section 11 Steam generation section 12 Range heating section 13 Oven heating section 14 Cooling section 15 Antenna rotation Drive unit 16 Pump drive unit 17 Temperature sensor 18 Antenna 19 Pump 20 Tank 21 Pipe 31 Air passages 31a and 31b Wall members 31c and 31d Opening 32 Terminal 33 Temperature sensor 34 Interior light 41a Opening

Claims (4)

A heating cooker that performs cooking using at least steam,
a steam generation unit that generates the steam and supplies it to the heating chamber;
A pipe that supplies water to the steam generating section,
The pipe is arranged in at least a part of the air passage through which the cooling air is applied to the electronic components to be cooled,
The steam generating section and the tank that supplies water to the steam generating section are arranged diagonally when looking at the heating chamber from the front, when the direction in which the door of the heating cooker opens is the front. A heating cooker characterized by: The cooking device according to claim 1, wherein the pipe is arranged along the air passage. The heating cooker according to claim 1 or 2, wherein the pipe is arranged close to an electronic component to be cooled. The cooking device according to claim 3, wherein the electronic component to be cooled is an interior light that illuminates the inside of the heating refrigerator.

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