阅读说明：本技术 加热烹调器 (Heating cooker ) 是由 本间满 川村光辉 关真人 于 2019-09-04 设计创作，主要内容包括：本发明提供抑制从加热室内向门部传递的热并提高门部的冷却效果的加热烹调器。具备在主体(1)的上表面载置被烹调锅的锅载置部(21)和配置于锅载置部的下方的炙烤箱(5)。炙烤箱(5)具备加热室(50)和覆盖加热室的开口部且为了将食品拿出放入加热室(50)内而能前后移动的门部(6)。门部(6)是在内部具有空间的箱体,具备形成于箱体的吸气用开口(61b)和相比吸气用开口位于上方且形成于箱体的侧面的排气用开口(62a)。在加热室(50)的开口部的外侧具备凸缘部(50a),在凸缘部(50a)和与凸缘部(50a)对置的门部(6)之间设置间隙(68),间隙(68)构成在门部(6)的上下方向上贯通的风道,使排气用开口(62a)与该风道连通。(The invention provides a heating cooker which restrains heat transferred from a heating chamber to a door part and improves the cooling effect of the door part. The cooking device is provided with a pot placing part (21) for placing a pot to be cooked on the upper surface of a main body (1) and a roasting oven (5) arranged below the pot placing part. The roasting oven (5) is provided with a heating chamber (50) and a door part (6) which covers the opening part of the heating chamber and can move back and forth for taking out and putting food into the heating chamber (50). The door section (6) is a box body having a space inside, and is provided with an intake opening (61b) formed in the box body and an exhaust opening (62a) formed in the side surface of the box body above the intake opening. A flange part (50a) is provided on the outer side of the opening part of the heating chamber (50), a gap (68) is provided between the flange part (50a) and a door part (6) opposite to the flange part (50a), the gap (68) forms an air channel penetrating in the vertical direction of the door part (6), and an exhaust opening (62a) is communicated with the air channel.)

1. A heating cooker is characterized in that,

the disclosed device is provided with: a main body; a pot placing part which is the upper surface of the main body and is used for placing the pot to be cooked; and a roasting oven disposed below the pot placing part,

the roasting box comprises: a heating chamber; a door part which covers an opening part of the heating chamber and can move back and forth for taking out and putting food into the heating chamber; a food loading part which is interlocked with the door part and stores food in the heating chamber; and a heating mechanism for heating the food,

the door is a box body having a space inside, and is provided with an air suction opening formed in the box body and an air discharge opening located above the air suction opening,

a flange portion facing the door portion is provided outside the opening portion of the heating chamber, and a gap between the flange portion and the door portion facing the flange portion forms an air duct communicating in a vertical direction of the door portion, and the exhaust opening communicates with the air duct.

2. The heating cooker according to claim 1,

the air duct is formed by the unevenness of the flange portion.

3. The heating cooker according to claim 1,

the air duct is formed by the concave-convex of the door part.

4. The heating cooker according to claim 1,

the air duct is formed by a seal member provided in a gap between the flange portion and the door portion.

5. The heating cooker according to any one of claims 1 to 4,

the front surface of the door part is provided with a handle, and the air suction opening is formed below the handle.

6. The heating cooker according to claim 5,

a partition plate for dividing the space into the heating chamber side and the handle side is provided in the case,

the space on the handle side is provided with the air intake opening and the air exhaust opening.

7. The heating cooker according to any one of claims 1 to 6,

a fan device is provided in the main body,

a vent hole is provided in the flange portion below the heating chamber, and air is supplied from the vent hole to the air duct.

8. The heating cooker according to claim 6,

the box body is provided with a window part for observing the inside of the heating chamber.

9. The heating cooker according to claim 8,

the food placing part is a deep-dish-shaped cooking pan, and the cooking pan is disposed at a position where radiant energy irradiated from the heating means toward the window part is blocked.

Technical Field

The present invention relates to a heating cooker provided with a roasting oven.

Background

Generally, in a broil oven, both surfaces of a food (an object to be cooked) such as fish are often heated simultaneously by a heat source such as a sheath heater or a gas burner disposed vertically above the food.

In the heating chamber of the broiling oven, in addition to broiling cooking in which food is heated by radiant heat of a heat source, oven cooking corresponding to various cooking menus such as pizza, cake, and cake is performed by controlling the temperature in the heating chamber. Therefore, the frequency of use and the high temperature holding time of the roasting oven are increased. A temperature sensor such as a thermistor is provided in the heating chamber of the broil oven, and temperature control is performed based on the detection value of the temperature sensor.

The broil oven has an opening on the front side of the heating cooker, and a door portion is provided so as to cover the opening. Generally, when a user places food in the heating chamber, the user pulls and opens the handle of the door. When heating cooking is performed in the grill, the temperature in the grill rises due to the heat supplied from the heat source, and the temperature of the door rises accordingly. Although the temperature of the outer surface of the door portion is high, such as 100 ℃ or higher, the handle touched by the user when opening and closing the door portion is configured to be difficult to transfer heat. From the viewpoint of further improving safety, it is desirable to reduce the temperature of the outer surface of the door portion. As a technique for reducing the temperature of the outer surface of the door portion, there are, for example, patent document 1 and patent document 2.

Patent document 1 discloses the following technique: a door having a handle and opening and closing an opening of a roasting oven is provided, the door is composed of an inner wall facing the opening and an outer wall facing the outside, and is provided with an introduction hole and a discharge hole for circulating air to an air layer formed between the inner and outer walls.

Patent document 2 discloses the following technique: the grill door is provided with a grill door for covering an opening of a grill, and the grill door is composed of a glass door front plate formed of glass and a metal front plate holding member for holding the grill door front plate, and an air heat insulating layer is provided between the glass door front plate and the front plate holding member with a predetermined interval.

Disclosure of Invention

Problems to be solved by the invention

A general broil oven heats food by radiant heat of which the temperature of a heat source during cooking is 500 ℃ or more, and the temperature in a heating chamber is raised to 200 ℃ or more. Therefore, the surface temperature of the door portion, which is in contact with the internal air and conducts the heat energy, reaches a high temperature of 100 ℃. Since the door portion disposed on the front surface of the main body is located on the side facing the user during cooking, it is desirable to reduce the temperature of the door portion in view of improvement of safety.

In the technique described in patent document 1, the air layer is made to flow by natural convection by providing the air introduction hole and the air discharge hole in the air layer inside the door, but since the air flow is caused by the outer wall temperature, the door temperature and the flow performance on the handle side have a trade-off relationship. That is, the air layer is made to flow by natural convection in order to dissipate heat from the heating box to the door, and the air layer can be promoted to flow because the door temperature is high. If the door temperature is lowered to some extent, the flow of the air layer is reduced, and the heat transfer is reduced. This means that the temperature of the door is not sufficiently lowered and saturated with only the flow of the air layer.

In the technique described in patent document 2, the heat transfer to the front plate of the grilling door is blocked by providing an air heat insulating layer, but it is not sufficient to lower the temperature of the front plate of the grilling door when the front plate holding member during cooking is 150 to 200 ℃ or more and the air heat insulating layer has a thickness of about 10 to 20 mm. In the case of using a low thermal conductivity such as an air heat insulating layer, the temperature of the door front plate for grilling is determined by a temperature gradient due to the thermal conductivity according to the temperature of the front plate holding member, and the temperature of the door front plate for grilling is decreased in proportion to the distance between the door front plate for grilling and the front plate holding member. In the heating cooker, it is difficult to sufficiently secure a distance between the grill door front plate and the front plate holding member due to restrictions on an installation space. Therefore, the distance between the front plate of the grilling door forming the air heat insulating layer and the front plate holding member is about 10mm to 20mm, and the heat transferred from the front plate holding member to the front plate of the grilling door, which is 150 ℃ to 200 ℃ or higher, is blocked during cooking, so that the temperature of the front plate of the grilling door is not sufficiently lowered.

An object of the present invention is to solve the above problems and to provide a heating cooker in which heat transferred from a heating chamber is suppressed and a cooling effect of a door portion is improved in a grill incorporated in the heating cooker.

Means for solving the problems

In order to achieve the above object, the present invention includes: a main body; a pot placing part which is the upper surface of the main body and is used for placing the pot to be cooked; and a grilling oven disposed below the pot placement unit, the grilling oven including: a heating chamber; a door part which covers an opening part of the heating chamber and can move back and forth for taking out and putting food into the heating chamber; a food loading part which is interlocked with the door part and stores food in the heating chamber; and a heating mechanism for heating the food, wherein the door is a box having a space therein, and an intake opening formed in the box and an exhaust opening located above the intake opening are arranged, a flange portion facing the door is provided outside the opening of the heating chamber, a gap between the flange portion and the door facing the flange portion forms an air duct penetrating in a vertical direction of the door, and the exhaust opening is provided in the air duct.

The effects of the invention are as follows.

According to the present invention, it is possible to provide a heating cooker in which heat transferred from the inside of the heating chamber is suppressed and the cooling effect of the door portion is improved in a grill incorporated in the heating cooker.

Drawings

Fig. 1 is a perspective view of a heating cooker according to embodiment 1 of the present invention.

Fig. 2 is an exploded perspective view of the heating cooker shown in fig. 1.

Fig. 3 is a front sectional view taken along line C-C shown in fig. 1.

Fig. 4 is a side sectional view taken along line a-a shown in fig. 1.

Fig. 5 is a schematic view of the broil oven of fig. 4.

Fig. 6 is a top sectional view of the broil oven of fig. 5.

Fig. 7 is an exploded perspective view of the door portion of fig. 4.

Fig. 8 is a view showing a modification 1 of the door of the broil oven of fig. 7.

Fig. 9 is a diagram illustrating a door cooling phenomenon of the present invention.

Fig. 10 is a view showing a modification 2 of the broil oven of fig. 5.

Fig. 11 is a top sectional view illustrating the broil oven of fig. 10.

Fig. 12 is a view showing a modification 3 of the broil oven of fig. 10.

Fig. 13 is a view showing a modification 4 of the broil oven of fig. 5.

Fig. 14 is a top sectional view of the broil oven of fig. 12.

Fig. 15 is a side sectional view taken along line B-B shown in fig. 1.

Fig. 16 is a schematic diagram of a side sectional view of a broil box 5 of embodiment 2 of the present invention.

Fig. 17 is a top cross-sectional view of the broil oven of fig. 16.

Fig. 18 is a schematic side sectional view of the broil oven 5 of embodiment 3 of the present invention.

Fig. 19 is a schematic side sectional view of a broil box 5 of example 4 of the present invention.

Description of the symbols

1-main body, 2-top plate, 3-heating coil, 5-grilling box, 6-door, 7-substrate, 8-substrate housing, 50-heating chamber, 50 a-flange, 50 b-vent, 51-upper heater, 52-lower heater, 53-tray, 54-net table, p-food, 58-cooking pan, 59-exhaust channel, 60-front plate, 60 a-wind channel, 61-door base, 61 a-handle, 61b, 62 b-opening for suction, 61 d-rib, 62-frame, 62 a-opening for exhaust, 63-insulating layer, 64-partition plate, 65-seal, 66-window, 68-gap (wind channel), 98-air flow (updraft), 99-air flow, 100-exhaust flow.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. In each embodiment of the present invention, the front-back, the up-down, and the left-right are defined as shown in fig. 1 and the like with reference to the line of sight of the user facing the heating cooker Z (see fig. 1). In the embodiments of the present invention, the Heating cooker is described by taking an Induction Heating (IH) cooker with a broil oven as an example, but the present invention can be easily applied to a fixed IH cooker or a built-in or fixed gas cooker.