JP5979802B1 - Cooker - Google Patents

Abstract

A cooking device capable of uniformly heating an object to be cooked. A housing 13 having a food heating chamber 20 for containing and heating food, a net portion on which an object to be cooked can be placed above the bottom surface of the food heating chamber, a tray 17 for placing the net portion, A steam generation unit that supplies steam to the food heating chamber; and a steam resupply unit that guides the steam supplied to the food heating chamber to the outside of the food heating chamber and supplies the steam to the food heating chamber again. The inner wall facing the food heating chamber has an inclined surface facing the bottom surface and protrudes toward the food heating chamber, an intake port communicating with the steam refeeding portion, and an inclined surface. A supply port that communicates with the steam resupply unit, the height position of the supply port is higher than the upper end portion of the tray and lower than the upper end portion of the mesh portion, and the horizontal position of the supply port is the tray in plan view. It is located inside the saucer rather than the periphery. [Selection] Figure 1

Description

  The present invention relates to a heating cooker.

2. Description of the Related Art A heating cooker (processing device) that heats food by introducing water vapor into the food heating chamber is known. In such a heat treatment device, food is heated by supplying steam heated to a high temperature (hereinafter referred to as “superheated steam”) to an object to be cooked (food). Superheated steam is obtained by heating the steam supplied from the water storage chamber. The generated superheated steam is supplied into the food heating chamber to heat the food and is circulated in the food heating chamber by a circulation fan.
For example, Patent Document 1 describes that the heat medium in the food heating chamber is circulated by a circulation fan along a predetermined circulation path.

Japanese Patent No. 5658578

  The heat treatment apparatus described in Patent Document 1 has a problem that it is difficult to efficiently heat the lower surface in the heat treatment chamber.

  One aspect of the present invention has been made in view of the above-described problems of the prior art, and is one of the objects to provide a cooking device capable of intensively heating the lower surface of an object to be cooked. It is said.

  A heating cooker according to an aspect of the present invention includes a housing having a food heating chamber for containing and heating food, a food object placing body disposed in the food heating chamber, and steam in the food heating chamber. A steam generation unit to be supplied; and a steam resupply unit for supplying the steam supplied to the food heating chamber to the outside of the food heating chamber and supplying the steam to the food heating chamber again. The placing body has a net part on which the food to be cooked can be placed above the bottom surface of the food heating chamber, and a tray on which the net part is placed, and the casing faces the food heating chamber. On the inner wall, a convex portion having an inclined surface facing the bottom surface and projecting toward the food heating chamber, an intake port communicating with the steam resupply unit, and the steam resupply unit located on the inclined surface A supply port that communicates, and a height position of the supply port is higher than an upper end portion of the tray. And lower than the upper end of the network portion, the horizontal position of the supply port than the peripheral portion of the pan in a plan view is located inside of the pan.

  In the heating cooker according to an aspect of the present invention, the steam resupply unit sucks the steam supplied to the food heating chamber from the intake port and discharges the steam from the supply port, and the circulation fan And a heating means disposed in a flow path between the supply port and the supply port.

  The heating cooker which concerns on 1 aspect of this invention WHEREIN: The said heating means may be arrange | positioned along the said convex part in the visual field from the normal line direction of the said inner wall.

  In the heating cooker according to one aspect of the present invention, the casing is provided with a concave portion along the convex portion at a position overlapping the convex portion on the outer wall surface, and at least a part of the heating means is the concave portion. It may be arranged.

  The heating cooker which concerns on 1 aspect of this invention WHEREIN: The said heating means has a bending part protruded with respect to the surface parallel to the said outer wall surface, and the said bending part may be arrange | positioned at the said recessed part.

  As described above, according to one aspect of the present invention, it is possible to provide a cooking device capable of intensively heating the lower surface of the object to be cooked.

It is a front perspective view of the cooking-by-heating machine of a 1st embodiment, and shows the state where the door part was opened. It is the cut surface which cut | disconnected the heating cooker of 1st Embodiment along the Y direction, and shows the state which closed the door part. It is the perspective schematic diagram which showed typically the back side of the food heating chamber of the heating cooker of 1st Embodiment. It is a cross-sectional schematic diagram of the surface which cut | disconnected the heating cooker of 2nd Embodiment by the surface parallel to a circulation fan. It is the cut surface which cut | disconnected the heating cooker of 2nd Embodiment along the Y direction. It is a perspective schematic diagram of the heater for reheating used for the heating cooker of 2nd Embodiment. The cut surface which cut | disconnected the heating cooker of 3rd Embodiment along the Y direction is shown.

Embodiments of the present invention will be described below with reference to the drawings.
In each drawing used for the following description, the scale of each member is appropriately changed to make each member a recognizable size.

[First Embodiment]
Drawing 1 is a front perspective view of cooking-by-heating machine 1 of a 1st embodiment, and shows the state where door part 11 was opened. The width direction of the cooking device 1 is the X direction, the length direction of the cooking device 1, the opening / closing direction of the door portion 11 is the Y direction, and the height direction of the cooking device 1 is the Z direction. FIG. 2 is a cut surface of the heating cooker 1 according to the first embodiment cut along the Y direction, and shows a state in which the door portion 11 is closed. Hereinafter, the surface on the door 11 side of the cooking device 1 may be referred to as a front surface, the surface opposite to the door 11 may be referred to as a back surface, and the surface perpendicular to the door portion 11 and standing in the Z direction may be referred to as a side surface.

  The heating cooker 1 of this embodiment is a heating cooker that cooks food placed in a processing chamber with superheated steam. The heating cooker 1 includes a main body 10 and a steam generator 30. The main body 10 and the steam generator 30 are connected by a connecting part 40.

  The steam generator 30 generates water vapor as a heat medium by heating water supplied from a water tank (not shown) by an internal heater (not shown). The water vapor generated by the steam generator 30 is supplied to the main body portion 10 through the connecting portion 40.

  The main body unit 10 includes a door unit 11, a heater box 12, a housing 13, and a steam resupply unit 14.

The door portion 11 is provided on the front surface of the housing 13. The door portion 11 is provided with a handle 11a. The door part 11 can be opened and closed using the handle 11a.
The door portion 11 has a door portion structure 15 that is fixed and moves in parallel with the door portion 11. An operation display panel 16 is provided on the upper portion of the door portion 11. On the door structure 15, a cooking object placing body 18 is installed. The to-be-cooked object mounting body 18 has the net | network part 18a which can mount a to-be-cooked object above the bottom face of a food heating chamber, and the saucer 17 which installs the net | network part 18a. When the door part 11 is opened and closed, the to-be-cooked object mounting body 18 operates together with the door part structure 15. The to-be-cooked object mounting body 18 is detachable from the door structure 15.
The operation display panel 16 includes, for example, an operation unit provided with a display unit for displaying cooking time, a button for starting cooking, a button for setting cooking time, and the like.

  The heater box 12 is disposed at least on the top of the housing 13. The heater box 12 is provided with a heater 12a. The heater 12a extends over the entire surface while bending in the heater box 12. The steam generated by the steam generator 30 is supplied to the heater box 12 via the connecting portion 40. The steam supplied to the heater box 12 is heated by the heater 12a to become superheated steam. The heated superheated steam is sent to the side of the housing 13 along the heater box 12. And it supplies to the inside of the housing 13 from the 1st supply port 19 which connects the housing 13 and the heater box 12. FIG.

The housing 13 has a rectangular box shape and has a food heating chamber 20 inside. The food heating chamber 20 can contain and heat food. In the heating cooker according to the first embodiment, food is placed on the net 18 a of the cooking object placing body 18. Since the net portion 18 a is disposed on the tray 17, it is positioned above the bottom surface of the food heating chamber 20. The food placed on the net 18 a is heated by the superheated steam supplied from the first supply port 19.
Here, the position of the first supply port 19 may be provided at any position of the housing 13. In FIG. 2, the first supply port 19 is illustrated on the side surface of the food heating chamber 20, but the first supply port may be provided on the top plate of the food heating chamber 20. If the 1st supply port 19 is provided above the net | network part 18a, the upper surface of a foodstuff can be heated especially with the superheated steam supplied from the 1st supply port 19. FIG.

  The housing 13 is provided with an air inlet 21, a second supply port 22, and a convex portion 23 protruding toward the food heating chamber 20 on the inner wall facing the food heating chamber 20. The intake port 21 and the second supply port 22 are provided so as to communicate between the steam resupply unit 14 provided outside the food heating chamber 20 and the food heating chamber 20.

As the circulation fan 14 </ b> A provided in the steam resupply unit 14 rotates behind the housing 13, superheated steam is sucked out from the air inlet 21. The superheated steam sucked out is directed downward along the flow path, and is again supplied into the food heating chamber 20 from the second supply port 22.
Here, the second supply port corresponds to the supply port in the claims of the present invention.

FIG. 3 is a schematic perspective view schematically showing the back side of the food heating chamber 20. As shown in FIG. 3, the second supply port 22 is formed in a convex portion 23 that protrudes toward the inside of the food heating chamber 20. The convex part 23 has the 1st inclined surface 23a which faces the food heating chamber 20 upper direction, and the 2nd inclined surface 23b which faces the food heating chamber 20 lower direction. The second supply port 22 is formed in at least the second inclined surface 23b. In FIG. 3, the protrusions 23 are illustrated as protrusions extending in the X-axis direction, but a plurality of protrusions may be interspersed. Even when the plurality of convex portions 23 are scattered, the second supply port 22 is formed on the second inclined surface 23 b of the convex portion 23. The size of the second supply port 22 is not particularly limited, and may be a plurality of second supply ports 22 as shown in FIG. 3 or a single second supply port 22 extending in the X-axis direction. .
Here, the second inclined surface corresponds to the inclined surface in the claims of the present invention.

The position of the convex part 23 in the back surface of the food heating chamber 20 is set so that the superheated steam supplied from the second supply port 22 is supplied below the net part 18a. Specifically, as shown in FIGS. 2 and 3, the height position of the second supply port 22 is higher than the upper end portion 17a of the tray 17 and lower than the upper end portion 18b of the mesh portion 18a, and The horizontal position of the 2nd supply port 22 is located inside the saucer 17 rather than the peripheral part 17b of the saucer 17 in planar view.
By arranging in this way, superheated steam is supplied along the tray 17. By supplying superheated steam along the tray 17, superheated steam can be efficiently supplied over the entire surface of the tray 17, and food can be heated from below the mesh portion 18 a. Therefore, the lower part of the food placed on the net 18a can be intensively heated.

  Although the 2nd supply port 22 may be provided in the 1st inclined surface 23a, it is preferable to provide only in the 2nd inclined surface 23b. By providing only on the 2nd inclined surface 23b, it can avoid that the convection in the food heating chamber 20 becomes complicated. Therefore, it is possible to easily control the heating state of the food.

  In FIG. 2, the heater box 12 and the steam resupply unit 14 are separated, but may be connected. If the heater box 12 and the steam resupplying unit 14 are separated, the superheated steam supplied from the second supply port 22 into the food heating chamber 20 is once supplied into the food heating chamber 20 and re-applied by the circulation fan. Limited to circulating ones.

  On the other hand, when the heater box 12 and the steam resupply unit 14 are connected, the superheated steam heated by the heater box 12 is heated directly from the second supply port 22 through the steam resupply unit 14. It can be supplied into the chamber 20. Thus, by securing a route for supplying superheated steam directly from the heater box 12 to the second supply port 22, the temperature of the superheated steam applied to the lower surface of the food can be maintained higher. If the heater box 12 and the steam resupply unit 14 are connected, the superheated steam sucked from the air inlet 21 can be supplied again to the heater box 12. That is, the superheated steam sucked from the intake port 21 can be reheated.

  According to this embodiment, the lower surface of the food placed on the net 18 a can be efficiently heated by the superheated steam supplied from the second supply port 22. Since hot steam has a property of accumulating upward, the cooking time can be shortened by supplying superheated steam from below.

[Second Embodiment]
FIG. 4 is a schematic cross-sectional view of the cooking device of the second embodiment cut along a plane parallel to the circulation fan. In FIG. 4, since the convex part 23 does not exist on the same plane as the circulation fan 14A, it is indicated by a dotted line. As shown in FIG. 4, the heating cooker 50 of the second embodiment is provided with a reheating heater 51 between the circulation fan 14 </ b> A and the second supply port 22. And different.
The reheating heater 51 corresponds to the heating means in the claims of the present invention.

The reheating heater 51 includes a rod-shaped heating element 52 and a pair of terminal portions 53 provided at the terminal portion of the heating element 52. When a current is supplied from a power source connected to the terminal portion 53, the heating element 52 generates heat.
By providing the reheating heater 51, the superheated steam supplied from the second supply port 22 into the food heating chamber 20 can be reheated. That is, the temperature of the superheated steam supplied from the second supply port 22 can be increased.

The reheating heater 51 is disposed between the circulation fan 14 </ b> A and the second supply port 22. For example, in FIG. 4, the reheating heater 51 is disposed only below the circulation fan 14A. By arrange | positioning in this position, the superheated steam resupplied in the food heating chamber 20 from the 2nd supply port 22 can be heated preferentially. The superheated steam sucked from the suction port 21 (see FIG. 3) by the circulation fan 14A is re-supplied into the food heating chamber 20 from the second supply port 22 along the flow path. That is, the superheated steam flows downward with respect to the circulation fan 14. By disposing the reheating heater 51 in the middle of the flow path, it is possible to reheat the superheated steam whose temperature has decreased due to the circulation.
Therefore, in the configuration of FIG. 4, the reheating heater 51 is vertically asymmetric in the visual field from the normal direction of the circulation fan 14.

FIG. 5 is a cut surface obtained by cutting the cooking device of the second embodiment along the Y direction. As shown in FIG. 5, a part of the reheating heater 51 is disposed in the concave portion 54 along the convex portion 23 at a position overlapping the convex portion 23 on the outer wall surface 13 </ b> A of the housing 13. The convex portion 23 and the concave portion 54 have a pair of relationships that are a convex portion when viewed from the inner wall side of the housing 13 and a concave portion when viewed from the outer wall side.
Since a part of the reheating heater 51 is disposed in the recess 54, a part of the reheating heater 51 exists at a position protruding from the inner wall of the housing 13 to the inside of the food heating chamber 20. That is, a part of the reheating heater 51 is disposed so as to be included in the convex portion 23.
Superheated steam is very high at 200 ° C. to 400 ° C., and the temperature tends to decrease. Therefore, it is preferable to heat the food heating chamber 20 until just before the superheated steam is supplied. When a part of the reheating heater 51 of the heating element 52 is disposed so as to be included in the convex portion 23, the heating element 52 is positioned at a position close to the second supply port 22. That is, the superheated steam can be heated until just before being supplied from the second supply port 22 to the food heating chamber 20, and the temperature drop of the superheated steam can be further suppressed.

FIG. 6 is a schematic perspective view of a reheating heater 51 used in the cooking device of the second embodiment. The reheating heater 51 shown in FIG. 6 has a bent portion 52a that is bent so as to protrude from a virtual plane on which two terminal portions 53 on the input side and the output side are arranged.
In the reheating heater 51 shown in FIG. 6, portions other than the bent portion 52 a are arranged along a plane parallel to the outer wall surface 13 </ b> A of the housing 13. And by arrange | positioning this bending part 52a in the recessed part 54, the thickness (depth direction: Y direction) of the vapor | steam resupply part 14 in which the heater 51 for reheating is arrange | positioned can be made thin. That is, the overall size of the heating cooker 60 (particularly the size in the depth direction) can be reduced, and a compact heating cooker can be realized.

  According to this structure, it can suppress that the temperature of the superheated steam supplied from the downward direction of the net | network part 18a falls. That is, it is possible to more efficiently heat the food placed on the net 18a from below. Since hot steam has a property of accumulating upward, the cooking time can be shortened by supplying superheated steam from below. Moreover, a compact heating cooker can be realized.

[Third Embodiment]
FIG. 7 shows a cut surface obtained by cutting the cooking device of the third embodiment along the Y direction. The third embodiment is different in that the second supply port is provided on the side surface instead of the back surface of the food heating chamber 20.

  In FIG. 7, the first supply port 19 is arranged on the top plate of the food heating chamber 20 from the viewpoint of easy viewing of the drawing, but the side surface of the food heating chamber 20 is the same as the cooking device 1 of the first embodiment. A first supply port 19 may be provided. If the 1st supply port 19 is provided in the side surface of the food heating chamber 20, since the 2nd supply port 62 is also located in the side surface of the food heating chamber 20, two supply ports are provided in the same surface. Therefore, a heater for heating the superheated steam supplied from the first supply port 19 and the second supply port 62 can be shared.

  In the heating cooker 60 of the third embodiment, the superheated steam supplied from the first supply port 19 to the food heating chamber 20 is sucked out from the intake port 21 by the circulation fan 14. In the heating cooker 60 of the third embodiment, the superheated steam sucked out is supplied to the side of the food heating chamber 20 along the flow path. The superheated steam supplied to the side is re-supplied into the food heating chamber 20 from the second supply port 62 provided in the convex portion 63 provided on the side surface of the food heating chamber 20. In FIG. 6, only one side surface is shown, but the other side surface may have the same configuration.

  The relationship between the 2nd supply port 62 and the net | network part 18a is the same as that of the heating cooker 1 of 1st Embodiment. Therefore, the food placed on the net 18a can be heated from below by the supplied superheated steam.

  In the heating cooker 60 of the third embodiment, it is preferable that the lower end of the intake port 21 (the intake port located at the lowest end among the plurality of intake ports) is located below the upper end of the net 18a. When the lower end of the air inlet 21 is located below the upper end of the net 18a, the superheated steam sprayed from the side becomes easier to flow below the cooking object. That is, it is possible to avoid that the superheated steam circulates only above the food heating chamber 20. Superheated steam can be reliably supplied to the lower surface of the object to be cooked, and the object to be cooked can be efficiently heated.

  Similarly to the heating cooker 50 of the second embodiment, it is preferable to provide a reheating heater 61 between the second supply port 62 and the circulation fan 14. Since the second supply port 62 is located on the side surface of the food heating chamber 20, the reheating heater 61 is preferably located on the side of the food heating chamber 20. Also in this case, it is more preferable that the reheating heater 61 has a bent portion 61 a and the bent portion 61 a is disposed so as to be included in the convex portion 63.

  According to this structure, it can suppress that the temperature of the superheated steam supplied from the downward direction of the net | network part 18a falls. That is, it is possible to more efficiently heat the food placed on the net 18a from below. Since hot steam has a property of accumulating upward, the cooking time can be shortened by supplying superheated steam from below.

  In addition, the specific configurations such as the number, arrangement, and shape of various components constituting the heating cooker are not limited to the above embodiment, and can be changed as appropriate.

DESCRIPTION OF SYMBOLS 1,50,60 ... Cooking device, 10 ... Main-body part, 11 ... Door part, 11a ... Handle, 12 ... Heater box, 12a ... Heater, 13 ... Housing, 13A ... Outer wall surface, 14 ... Steam resupply part, 14A DESCRIPTION OF SYMBOLS ... Circulation fan, 15 ... Door part structure, 16 ... Operation display panel, 17 ... Receptacle, 17a ... Upper end part, 17b ... Peripheral part, 18 ... To-be-cooked object mounting body, 18a ... Net | network part, 18b ... Upper end part, DESCRIPTION OF SYMBOLS 19 ... 1st supply port, 20 ... Food heating chamber, 21 ... Intake port, 22, 62 ... 2nd supply port (supply port), 23, 63 ... Convex part, 23a ... 1st inclined surface, 23b ... 2nd inclined surface (inclined surface), 30 ... steam generating device, 40 ... connecting portion, 51, 61 ... heater for reheating, 52 ... heating element, 52a, 61a ... bent portion, 53 ... terminal portion, 54 ... recessed portion

Claims (4)

A housing having a food heating chamber for containing and heating food;
A to-be-cooked object placing body disposed in the food heating chamber;
A steam generator for supplying steam to the food heating chamber;
The steam supplied to the food heating chamber is led to the outside of the food heating chamber, and a steam resupply unit that supplies the food heating chamber again,
The to-be-cooked object placing body has a net part on which the object to be cooked can be placed above the bottom surface of the food heating chamber, and a tray on which the net part is placed,
The casing has a convex portion projecting toward the food heating chamber having an inclined surface facing the bottom surface on the inner wall facing the food heating chamber, and an air inlet that communicates with the steam resupply portion. A supply port located on the inclined surface and communicating with the steam resupply unit,
The height position of the supply port is higher than the upper end portion of the tray and lower than the upper end portion of the mesh portion,
The horizontal position of the supply port is located inside the saucer from the periphery of the saucer in plan view ,
The steam resupply unit sucks the steam supplied to the food heating chamber from the intake port and discharges the steam from the supply port,
Heating means disposed in a flow path between the circulation fan and the supply port,
The heating cooker in which the intake port and the supply port are provided on the same wall surface of the food heating chamber . The cooking device according to claim 1 , wherein the heating means is disposed along the convex portion in a visual field from the normal direction of the inner wall. The housing is provided with a concave portion along the convex portion at a position overlapping the convex portion on the outer wall surface,
The cooking device according to claim 1 or 2 , wherein at least a part of the heating means is disposed in the recess. The cooking device according to claim 3 , wherein the heating means has a bent portion protruding with respect to a plane parallel to the outer wall surface, and the bent portion is disposed in the recess.

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