WO2020017454A1

WO2020017454A1 - Heating cooker

Info

Publication number: WO2020017454A1
Application number: PCT/JP2019/027707
Authority: WO
Inventors: 一貴有馬; 良和北口
Original assignee: シャープ株式会社
Priority date: 2018-07-18
Filing date: 2019-07-12
Publication date: 2020-01-23
Also published as: JP7346410B2; TW202006297A; JPWO2020017454A1

Abstract

In order to achieve a heating cooker with which the cooling of electronic components is performed sufficiently, this heating cooker (1) has a pipe (21) that is for supplying water to a steam generating unit (11) and arranged in an air flow channel (31) through which cooling air flows to be applied to electronic components to be cooled.

Description

Cooker

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

As one of the cooking devices, there is a cooking device that performs cooking using superheated steam. In such a heating cooker, the temperature of the steam generating electric heater provided in the steam generating device that generates the heated steam, the circuit board for controlling the driving of the steam generating electric heater, and the like become high, and the life of the circuit components becomes longer. In addition, problems such as malfunction of the microcomputer may occur. For this reason, in the cooking device, the temperature of the electronic component is lowered by blowing cooling air to the electronic component.

However, in the conventional cooking device, since the air from the cooling fan provided in the cooking device is cooled by blowing the electronic component, the ability of the cooling fan is required to further cool the electronic component. It was necessary to raise it and add a cooling fan.

Therefore, in the microwave oven disclosed in Patent Document 1, when operated as an oven, a cooling fan that cools the magnetron is operated even in an oven that does not use the magnetron, and a part of the cooling air used exclusively for the magnetron is used. Is used as cooling air for the electronic components, thereby reducing the temperature of the electronic components without increasing the performance of the cooling fan or adding a cooling fan.

Japanese Unexamined Patent Publication “Japanese Patent Application Laid-Open No. 2007-327683”

However, in the microwave oven disclosed in Patent Literature 1, since the cooling air used exclusively for the magnetron is used for cooling the electronic components, another ventilation passage must be provided from the original ventilation passage. The air passage for sending air for cooling the air becomes complicated. Therefore, there is a problem that the air from the cooling fan does not sufficiently hit the electronic components, and the electronic components cannot be efficiently cooled.

One object of one embodiment of the present invention is to realize a heating cooker that can efficiently cool electronic components.

In order to solve the above-described problem, a heating cooker according to one embodiment of the present invention is a heating cooker that performs cooking using at least steam, and generates steam that generates the steam and supplies the steam to a heating chamber. And a pipe for supplying water to the steam generating section, wherein the pipe is disposed in at least a part of an air flow path through which a cooling wind applied to an electronic component to be cooled flows. .

According to one embodiment of the present invention, there is an effect that the electronic component can be efficiently cooled.

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

[Embodiment 1]
(Schematic description of cooking device)
FIG. 1 is a front view of the cooking device 1 of 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 provided with a magnetron (not shown) for generating microwaves and a steam generator 11 (FIG. 2). As the heating cooking, microwave cooking and steam, particularly, superheated steam heated to a temperature exceeding 100 ° C. This is a heating cooker that performs water oven cooking using the same.

As shown in FIG. 1, the cooking device 1 includes a rectangular parallelepiped casing 2 and a door 3, and a space surrounded by the casing 2 is a heating chamber 2 a for accommodating an object to be heated. The magnetron is provided inside the casing 2 (for example, on the side opposite to 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 chamber 2a, and includes a window (window) 3a arranged at a position facing the heating chamber 2a, and a frame (frame) 3b surrounding the window 3a. And Heat-resistant glass or heat-resistant transparent resin is fitted into the window 3a so that the heating chamber 2a can be seen. The frame 3b is formed from a non-metallic material, for example, a resin.

The door 3 is provided so as to be able to open and close the heating chamber 2a. The door 3 is pivoted about the lower end substantially at the center, and a handle 4 is attached to the upper side as a user assistance for opening and closing the door 3. In the present embodiment, the opening and closing of the door 3 is performed by rotating about the lower end side of the door 3 substantially at the center. However, the present invention is not limited to this. For example, the left or right side of the door 3 may be opened and closed. A configuration in which the door 3 opens and closes by rotating about the center may be used. The details of the door 3 will be described later.

シールド A shield material (not shown) having a size to cover the opening 2b at the entrance of the heating chamber 2a is formed on the surface of the door 3 facing the heating chamber 2a.

The cooking device 1 further displays a variety of information and the like on the cooking device 1, and a display operation unit (operation panel) 5 for receiving an operation on the cooking device 1 is provided on the front surface of the door 3. I have. The display operation unit 5 is provided with a display panel 8 for displaying various information such as dials 6 and buttons 7 and operation information. Note that the display operation unit 5 may be configured as a touch panel without using physical members such as the dial 6 and the button 7. The display operation unit 5 is connected to a control unit 10 described later, and performs input and output of information with the control unit 10. The heating cooker 1 including the control unit 10 will be described below.

(Function block of cooking device 1)
FIG. 2 is a functional block diagram of the cooking device 1. The cooking device 1 includes a control unit 10 as shown in FIG. The control unit 10 is connected to a display operation unit 5, a water vapor generation unit 11, a range 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 control 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 unit 10a controls the dial 6 and the button 7 of the display operation unit 5, the water vapor generation unit 11, the range heating unit 12, the oven heating unit 13, the cooling unit 14, the antenna rotation drive unit 15, the pump drive unit 16, It is connected to the sensor 17. On the other hand, the display control unit 10b is connected to the display panel 8 of the display operation unit 5.

The steam generating unit 11 is driven when cooking using superheated steam by the heating cooker 1 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 heating cooker 1. The steam generated by the steam generator 11 is superheated steam (steam having a temperature higher than 100 ° C.) or steam having a lower temperature. The temperature of the steam can be appropriately adjusted. Further, the steam supplied to the inside of the heating chamber 2a heats food (object to be heated) arranged inside the heating chamber 2a.

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

(4) The antenna rotation drive unit 15 rotates the antenna 18 that radiates microwaves during microwave cooking.

(4) When operating the steam generator 11, the pump driver 16 drives the pump 19 for supplying the water in the tank 20 to the steam generator 11.

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

(Blast path)
FIG. 3 shows a state in which the side panel on the installation side of the steam generator 11 provided in the cooking device 1 is removed, FIG. 4 shows a state in which the bottom panel of the cooking device 1 is removed, and FIG. The state where the back panel of the cooking appliance 1 was removed is shown.

加熱 As shown in FIG. 3, the cooking device 1 is provided with an air passage 31 through which cooling air flows from the bottom surface toward the upper surface. The air passage 31 transmits the cooling air blown out from the opening 41 a provided below the cooking device 1 to a temperature sensor 33 disposed in the vicinity of the steam generator 11 provided above the cooking device 1, It is formed so as to be guided to a terminal portion 32 of the heater provided in the steam generating section 11, an interior lamp 34 for illuminating the inside of the heating chamber 2a, and

terminal sections

35 and 36 of the heater 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 electronic components to be cooled (a temperature sensor, an interior light, and a terminal portion of a heater) are arranged to face each other. Are formed with

openings

31c and 31d for blowing out cooling air. The cooling air blown out from the opening 31c mainly hits the terminal 32 of the heater provided in the temperature sensor 33 and the steam generator 11 and the terminal 35 of the heater provided on the top surface of the heating chamber 2a, and blows out from the opening 31d. The cooling air hits the interior lamp 34 and the terminal portion 36 of the heater provided on the top surface of the heating chamber 2a.

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

(Pipes are placed in the air duct)
A pipe 21 for guiding water to the steam generator 11 is arranged in the air passage 31. That is, the electronic components to be cooled (the temperature sensor 33, the terminal portion 32 of the heater provided in the water vapor generating section 11, the

terminal portions

35 and 36 of the heater provided on the top surface of the heating chamber 2a, and the interior lamp 34). The pipe 21 is disposed in an air passage 31 through which the cooling air flows. As shown in FIG. 4, the pipe 21 is a pipe that guides water pumped out of the tank 20 by the pump 19 to the steam generator 11.

In the present embodiment, the pipe 21 through which water flows is disposed 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 flows. Therefore, electronic components that require cooling can be effectively cooled.

In addition, since the temperature of the water flowing through the pipe 21 is increased by heat exchange with the cooling air, it is possible to reduce the energy consumption in the steam generating section 11 and efficiently generate superheated steam.

In the present embodiment, the steam generator 11 and the tank 20 are arranged diagonally when the heating chamber 2a is viewed as a rectangular parallelepiped. That is, when the opening direction of the door 3 is set to the front, the steam generating unit 11 is disposed on the upper left side when the heating chamber 2a is viewed from the front, and the tank 20 is disposed on the lower right side when viewed from the front. . Therefore, the pipe 21 extends from the tank 20 disposed on the lower right side when viewed from the front to the steam generating section 11 disposed on the upper left side when viewed from the front. Thereby, since the pipe 21 arranged in the air passage 31 becomes longer, the time in which the cooling air comes into contact with the pipe 21 becomes longer, and the cooling air can be cooled more effectively.

[Embodiment 2]
Another embodiment of the present invention will be described below. For convenience of description, members having the same functions as those described in the above embodiment are denoted by the same reference numerals, and description thereof will not be repeated.

パイプ In the heating cooker according to the present embodiment, the pipe 21 is arranged along the ventilation path. Here, the ventilation path includes a ventilation path 31 (FIG. 3) on the side where the steam generating section 11 of the heating cooker 1 is installed, and blows air obtained from a fan provided on the bottom side of the cooking apparatus 1. Includes a route leading to road 31.

パイプ By arranging the pipes 21 in almost all the air passages through which the cooling air flows, the time for which the cooling air contacts the pipes 21 is further increased, and the cooling effect of the cooling air is increased. This makes it possible to more effectively cool electronic components that need to be cooled.

[Embodiment 3]
Another embodiment of the present invention will be described below. For convenience of description, members having the same functions as those described in the above embodiment are denoted by the same reference numerals, and description thereof will not be repeated.

In the heating cooker 1 of the present embodiment, the pipe 21 is connected to an electronic component to be cooled (a temperature sensor 33, a terminal portion 32 of a heater provided in the steam generating section 11, and a terminal of a heater provided on a top surface of the heating chamber 2a).

Parts

35, 36 and the interior lamp 34).

According to the above configuration, since the pipe 21 for supplying water to the water vapor generation unit 11 is arranged close to the electronic component to be cooled, the position of the cooling air near the electronic component to be cooled is reduced. Cooling takes place. Thus, the cooling air can be maintained in a state of being cooled until immediately before being blown to the electronic component, so that the electronic component can be cooled more effectively.

(Modification)
In the first to third embodiments, the pipe 21 is not provided with a configuration for exhibiting a cooling effect. However, the pipe 21 may be provided with a configuration for providing a cooling effect. For example, it is conceivable that a plurality of fins are provided on the surface of the pipe 21 to increase the surface area of the pipe 21 so that the cooling air is more effectively cooled.

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

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

DESCRIPTION OF SYMBOLS 1 Heating cooker 2 Casing 2a Heating cabinet 2b Opening 3 Door 3b Frame 4 Handle 5 Display operation unit 6 Dial 7 Button 8 Display panel 10 Control unit 11 Steam generation unit 12 Range heating unit 13 Oven heating unit 14 Cooling unit 15 Antenna rotation Drive unit 16 Pump drive unit 17 Temperature sensor 18 Antenna 19 Pump 20 Tank 21 Pipe 31 Ventilation passage 31a / 31b Wall member 31c / 31d Opening 32 Terminal 33 Temperature sensor 34 Interior light 41a Opening

Claims

A heating cooker that performs cooking using at least steam,
A steam generator that generates the steam and supplies the steam to the heating chamber;
A pipe for supplying water to the steam generating section,
A heating cooker, wherein the pipe is arranged in at least a part of an air flow path through which cooling air flows to an electronic component to be cooled.
加熱 The cooking device according to claim 1, wherein the pipe is arranged along the air passage.
(3) The cooking device according to (1) or (2), wherein the pipe is disposed close to an electronic component to be cooled.
4. The heating cooker according to claim 3, wherein the electronic component to be cooled is an interior lamp that illuminates the interior of the heating oven. 5.
5. The steam generator according to claim 1, wherein the steam generator and the tank for supplying water to the steam generator are arranged diagonally when the heating chamber is viewed as a rectangular parallelepiped. Heating cooker according to item.