JP2849526B2 - Cooker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating cooker for cooking an object to be heated by high-frequency heating or heater heating, and more particularly to a heating cooker for effectively utilizing generated heat.

[0002]

2. Description of the Related Art A microwave oven, which is widely used, irradiates microwaves on food containing water and the like, and heats and cooks an object to be heated such as food by dielectric heating caused by the microwave. In recent years, in addition to such a single function of dielectric heating, a heater or the like has been added so that food can be cooked with heat, and a product having a further enhanced function as a cooker has been provided.

[0003]

In a heating cooker provided with such a range heating and an oven heating, when heating is performed by a heater, the heat generated from the heater is radiated radially, so that the object to be heated is heated. Can be broadly divided into heat directed toward the inside of the oven for heating the heat and heat directed toward other directions.

[0004] The heat directed in other directions is not only unnecessary heat for heating the inside of the oven, but also is transmitted to the outside of the oven to cause undesirable results. Therefore, in order to protect the components provided in the cooker and to ensure the safety of the user, heat insulation is provided and shut off, and a cooling fan is installed to exhaust heat, and the heat is used effectively. Did not use it.

[0005] Further, at the time of microwave heating, the magnetron generates heat due to oscillation of microwaves. Therefore, in order to dissipate this heat, air was conventionally blown by a cooling fan, and the exhaust heat was simply discharged to the outside of the oven, and was not used effectively.

The present invention has been made in view of such circumstances, and has as its object to efficiently heat an object to be heated by effectively utilizing heat that does not go directly into the oven chamber. It is an object of the present invention to provide a heating cooker that can perform heating.

[0007]

In order to solve the above-mentioned problems, a heating cooker according to the present invention is provided with a grill heater near a top wall in an oven storage and a heater unit storage portion provided on one side wall. The convection fan and the heater are housed, and the rotation of the convection fan is applied to a heating cooker that is configured so that heat of the heater is blown out from the side wall outlet and circulated in the oven storage. A heat storage material storage portion for storing a heat storage material for storing heat radiation from the grill heater is provided on an upper side of the wall, and a heat storage material for storing a heat storage material for storing heat radiation from the heater at a rear side of the heater unit storage portion. The heat storage material storage portion is provided with a heat release port communicating with the inside of the oven at one end, and the other end has a damper lid that can be opened and closed. Those that are connected to the heater unit housing portion by.

Further, in the cooking device of the present invention, a grill heater is provided near a top wall in an oven storage, and a convection fan and a heater are stored in a heater unit storage portion provided on one side wall. A top wall portion in the oven chamber corresponding to a mounting position of the grill heater, which is applied to a heating cooker configured so that heat of a heater is blown out from a side wall outlet by rotation of a fan and circulated in the oven chamber. A heat outlet is formed in
A heat flow passage is formed on an upper side of the top wall including the heat discharge port, and a heat flow inlet of the heat flow passage is connected to the heater unit storage section via an openable / closable damper lid.

Further, the cooker of the present invention, high-frequency heating
And a cold to cool this magnetron
Cooling fan, and the cooling fan
To transfer the exhaust heat of the magnetron
In the heating cooker configured in the above, the magnetron
A heat storage material storage unit that stores a heat storage material that stores exhaust heat is provided on a heat discharge side of the magnetron opposite to the cooling fan, and the magnetron of the heat storage material storage unit is provided. An air inlet is formed at one end on the side, an air outlet communicating with the inside of the oven is formed at the other end, and a damper lid that can be opened and closed is provided at the air inlet.

[0010]

[Function] A heat storage material storage portion for storing heat storage material for storing heat radiation from a grill heater is provided on an upper side of a ceiling wall in an oven storage, and a heat storage material for storing heat radiation from a heater at a rear side of a heater unit storage portion. Is provided with a heat storage material storage unit for storing the heat storage material. One end of each of these heat storage material storage sections is formed with a heat release port communicating with the inside of the oven storage, and the other end is connected to the heater unit storage section via an openable damper lid.

With this configuration, when the heater is heated, the heat radiated from the grill heater toward the inside of the oven chamber is stored by the heat storage material stored in the heat storage material storage unit. Further, the heat radiated from the heater toward the opposite side to the inside of the oven chamber is stored by the heat storage material stored in the heat storage material storage unit. At this time, the damper lid is kept closed.

After the heat is stored in each heat storage material in this way, when heating the heater again, the damper lid is opened to connect the heater unit storage portion and each heat storage material storage portion.

[0013] With this, air flows from the heater unit storage section to each heat storage material storage section due to the rotation of the convection fan, and when the air passes through each heat storage material, heat is exchanged and warmed. Released into As a result, the rise time of the heating temperature in the oven storage is shortened, and the cooking time is shortened accordingly. In other words, by discharging the stored heat into the oven, the energization time of the heater is shortened. For example, when baking bread or the like, fermentation is excessively performed due to excessive heating of the surface temperature of bread dough or the like due to radiant heat of the heater. Can be prevented. Also, by releasing the heat stored after the end of heating, not at the start of heating, into the oven,
It can also be used for keeping the object to be heated warm.

Further, a heat discharge port is formed in a top wall portion in the oven chamber corresponding to a mounting position of the grill heater, and a heat flow path is formed in an upper side of the top wall including the heat discharge port, and a heat flow path is formed. The heat inflow port is connected to the heater unit storage section via a damper lid that can be opened and closed.

In the above configuration, at the time of heating the oven, the damper lid is opened to connect the heater unit storage section and the heat flow passage. Thereby, a part of the wind generated by rotating the convection fan is sent into the heat flow passage, and is discharged from the heat discharge port into the oven storage. Therefore, the heat dissipated from the grill heater to the side opposite to the inside of the oven storage (that is, the top wall side) is pushed back into the oven storage by this wind, and is used for heating in the oven storage.

Further, a heat storage material storage section for storing a heat storage material for storing exhaust heat of a magnetron for performing high-frequency heating is provided, and an air inlet is formed at one end of the heat storage material storage section on the magnetron side, and the other end is provided. An air outlet communicating with the inside of the oven is formed in the oven, and an openable / closable damper lid is provided at the air inlet.

Thus, during microwave heating, the magnetron that has generated heat is cooled by the cooling fan, and the exhaust heat is stored in the heat storage material. After storing heat in the heat storage material in this way,
When performing microwave heating again, open the damper lid. As a result, the exhaust heat of the magnetron flows into the heat storage material storage section from the air inlet, is heated and exchanged when passing through the heat storage material, and is discharged from the air outlet into the oven storage.
As a result, since the inside of the oven is heated, heat radiation of the object to be heated heated by the microwaves is reduced, and heating can be performed more quickly. In addition, by applying the heat released into the oven chamber to the inside of the window for confirming the inside of the oven chamber, the temperature of the window surface can be increased more quickly, and the fogging inside the window can be further reduced. .

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 are schematic sectional views showing an embodiment of the heating cooker according to the present invention, as viewed from the side, and correspond to claim 1.

In the figure, a door 1 is provided on the front of a cooking device main body 10.
A bar-shaped two grill heaters 4 and 4 are arranged in parallel on a top wall 3 of the oven interior 2 opened and closed by the door 1. The top wall 3 is formed with recessed grooves 5, 5 for accommodating the grill heaters 4, 4 in parallel with the door 1, so that the grill heaters 4, 4 do not protrude in the oven chamber. I have.

A heater unit storage 7 in which a convection fan 8 and a heater 9 are stored is provided on the rear wall 6 of the oven chamber 2. The heater 9 is arranged to circumvent the convection fan 8, and the convection fan 8 is driven to rotate by a convection motor 11 arranged between the heater unit storage section 7 and the cooking device main body 10. ing. Further, the heat dissipated from the heater 9 is applied to the rear wall 6, which is the boundary between the heater unit storage section 7 and the oven interior 2, in the oven interior 2.
An outlet 12 is formed to blow out the air.

A turntable 14 on which an object to be heated (not shown) is placed is provided on a bottom wall 13 of the oven chamber 2. The turntable 14 is a turntable provided at a lower portion of the bottom wall 13. It is driven to rotate by a table motor 15.

A heat storage material storage 19 for storing a heat storage material 18 for storing heat radiation from the grill heater 4 is provided above the top wall 3 in the oven chamber 2, and a rear portion of the heater unit storage 7. On the side, a heat storage material storage unit 20 that stores a heat storage material 18 that stores heat radiation from the heater 9 is provided. One end of each of the heat storage material storage sections 19 and 20 is formed in heat discharge ports 21 and 22 communicating with the inside of the oven chamber 2, and the other end of the heat storage material storage section 19 and 20 is opened and closed via a damper lid 23. It is connected to the part 7.

In this embodiment, zeolite is used as the heat storage material 18 in this embodiment. Zeolite is a ceramic heat storage material, which stores heat by eliminating internal moisture by heating, and releases heat when exposed to humid air.

Next, the operation of the cooking device having the above-described configuration during heating will be described.

During normal use, heat energy generated from the grill heater 4 is dissipated into the oven chamber 2 to heat the object to be heated (indicated by a broken arrow A in the figure); Some are radiated to the side opposite to the oven interior 2 (indicated by a solid arrow B in the figure). Among them, the heat energy B is heat that is originally unnecessary for heating the inside 2 of the oven. Therefore, the heat energy B is stored in the heat storage material 18 stored in the heat storage material storage unit 19.

During the convection operation, the heat energy C radiated from the heater 9 and directed to the opposite side of the oven chamber 2 is stored in the heat storage material 18 stored in the heat storage material storage unit 20. At this time, the damper lid 23 is in a closed state, and the heater unit housing 7 and the heat storage material housings 1 are closed.
9 and 20 are completely separated. Incidentally, the flow of hot air due to the rotation of the convection fan 8 at this time is indicated by white arrows in FIG.

Thereafter, when the convection operation is performed again, the damper lid 23 is opened to allow the heater unit storage section 7 to communicate with the heat storage material storage sections 19 and 20 (see FIG. 2).

As a result, humid air flows from the heater unit housing 7 to the heat storage material housings 19 and 20 due to the rotation of the convection fan 8, and the air is exchanged and heated when passing through the heat storage material 18. The heat is released from the heat release ports 21 and 22 into the oven storage. The flow of air at this time is shown by the solid arrow in FIG.

As described above, by using the heat energy stored in the heat storage material 18 as an aid at the start of heating, the temperature in the oven chamber 2 can be raised more quickly, and the object to be heated can be heated more quickly. It is possible to do.
As a result, for example, when baking bread or the like, the grill heater 4
It is possible to prevent over-fermentation due to excessive heating of the surface temperature of bread dough or the like due to radiant heat. Further, by releasing the heat stored after the end of the heating to the inside of the oven 2 instead of at the start of the heating, the heat can be used for keeping the object to be heated warm.

FIGS. 3 and 4 are schematic sectional views of another embodiment of the heating cooker according to the present invention, as viewed from the side, and correspond to claim 2.

In the figure, 1 is a door, 2 is an oven,
3 is a top wall, 4 is a grill heater, 5 is a recessed groove, 6 is a rear wall, 7 is a heater unit storage section, 8 is a convection fan, 9 is a heater, 10 is a cooker body, 11 is a convection motor, and 12 is a blower. An outlet, 13 is a bottom wall, 14 is a turntable, and 15 is a turntable motor, and their configurations are the same as those shown in FIG.

In the heating cooker of the present embodiment, in the above configuration, a heat discharge port 25 is formed in the concave groove portion 5 where the grill heater 4 is mounted, and the top wall 3 including the heat discharge port 25 is formed.
A heat flow passage 26 is formed on the upper side of the heat flow passage 26, and a heat flow inlet side 27 of the heat flow passage 26 is connected to the heater unit housing 7 via a damper lid 28 that can be opened and closed.

Next, the operation of the cooking device having the above-described configuration during heating will be described.

In normal heating, the convection fan 8 is rotated by closing the damper lid 28 provided in the heater unit housing 7. As a result, the heat generated from the heater 9 is blown out into the oven chamber 2 and circulated, so that the object to be heated (not shown) placed on the turntable 14 is cooked. The flow of the hot air due to the rotation of the convection fan 8 at this time is shown by solid line arrows in FIG.

Next, when heating and cooking with the grill heater 4, the damper lid 28 provided in the heater unit housing 7 is opened according to the cooking content, and the heater unit housing 7 and the heat flow passage 26 are communicated (FIG. 4). Thereby, a part of the wind generated by rotating the convection fan 8 is sent to the heat flow passage 26 and is discharged from the heat discharge port 25 to the inside of the oven storage 2. Therefore, the heat radiated from the grill heater 4 to the side opposite to the oven interior 2 (that is, the top wall 3 side) is pushed back to the oven interior 2 by this wind, and the heating in the oven interior 2 is performed. Will be offered. In other words, turntable 1
The object to be heated (not shown) placed on the plate 4 can be cooked more efficiently. The flow of the hot air due to the rotation of the convection fan 8 at this time is shown by solid line arrows in FIG.

FIGS. 5 and 6 are schematic sectional views of another embodiment of the heating cooker according to the present invention, as viewed from above, and correspond to claim 3.

In the figure, a magnetron 31 for performing microwave heating and a cooling fan 32 for cooling the magnetron 31 are provided on the upper portion of the cooking device main body 10 provided with the door 1 on the front surface. Exhausted heat of the magnetron 31 cooled by the cooling device 32 is sent out from the outlet 38 into the oven chamber 2 through the intake duct 33. After being circulated in the oven chamber 2, the air is discharged to the outside of the chamber via the exhaust port 40 of the exhaust duct 39.

In this embodiment, the heat storage material storage section 34 is formed by dividing the intake duct 33 into substantially two parts, and the heat storage material 18 for storing the exhaust heat of the magnetron 31 is stored in the heat storage material storage section 34. Have been. This heat storage material storage section 34
The air inlet 35 on the magnetron 31 side is provided with an openable / closable damper lid 37, and the air outlet 36 on the other end side is connected to the inside of the oven chamber through the outlet 38 of the intake duct 33. Pointed to 2. However, the intake duct 33 and the heat storage material storage section 34 can be configured separately.

Next, the operation of the cooking device having the above-described configuration during heating will be described.

At the time of microwave heating, the magnetron 31 that has generated heat is cooled by the cooling fan 32, and the exhaust heat is stored in the heat storage material 18 stored in the heat storage material storage unit 34. At this time, the damper lid 37 is closed (the state shown in FIG. 5) so that the stored heat is not released.

After storing heat in the heat storage material 18 in this way,
When performing microwave heating again, the damper lid 37 is opened (the state shown in FIG. 6). Thereby, the exhaust heat of the magnetron 31 flows into the heat storage material accommodating portion 34 from the air inlet 35 and is exchanged and heated when passing through the heat storage material 18,
From the air outlet 36 to the inside of the oven chamber 2 through the outlet 38
Will be released. As a result, the inside of the oven chamber 2 is heated, so that the heat radiation of the object to be heated (not shown) heated by the microwave is reduced, and the heating can be performed more quickly.

Further, by applying the heat released into the oven chamber 2 to the inside of the oven chamber confirmation window (not shown) provided on the door 1, the temperature of the window surface can be raised more quickly. The fogging inside the window can be further reduced.

[0044]

According to the heating cooker of the present invention, a heat storage material storage portion for storing a heat storage material for storing heat radiation from a grill heater is provided on an upper side of a ceiling wall in an oven storage, and a heat storage material storage portion is provided at a rear side of a fan storage portion. A heat storage material storage portion for storing a heat storage material for storing heat released from the heater, a heat release port communicating with the inside of the oven chamber at one end of each of the heat storage member storage portions, and a damper that can be opened and closed at the other end. Because it is connected to the fan storage unit via the lid, air flows from the fan storage unit to each heat storage material storage unit by the rotation of the convection fan, and this air is heated and exchanged when passing through each heat storage material. ,
Since the heat is released from each heat outlet into the oven, the rise time of the heating temperature in the oven can be shortened, and the cooking time can be shortened accordingly. In other words, by discharging the stored heat into the oven, the energization time of the heater is shortened. For example, when baking bread or the like, fermentation is excessively performed due to excessive heating of the surface temperature of bread dough due to the radiant heat of the heater. Can be prevented. In addition, by releasing the heat stored after the end of heating, instead of at the start of heating, into the oven chamber, it can be used for keeping the object to be heated warm.

Further, in the heating cooker of the present invention, a heat discharge port is formed in a top wall portion in the oven chamber corresponding to the mounting position of the grill heater, and a heat flow passage is formed on an upper side of the top wall including the heat discharge port. The heat flow inlet of the heat flow passage is connected to the fan storage section via an openable damper lid, so that a part of the wind generated by rotating the convection fan is sent into the heat flow passage, and the heat is released. By releasing the heat from the outlet into the oven, heat dissipated from the grill heater to the opposite side from the inside of the oven can be directed into the oven, and the heating efficiency in the oven can be improved. .

The heating cooker according to the present invention is provided with a heat storage material storage section storing a heat storage material for storing exhaust heat of a magnetron for performing high-frequency heating, and an air flow is provided at one end of the heat storage material storage section on the magnetron side. Since the inlet is formed, the other end is formed with an air outlet communicating with the inside of the oven chamber, and the air inlet is provided with a damper lid that can be opened and closed, so that the exhaust heat of the magnetron is reduced from the air inlet. When the heat flows into the heat storage material storage section and passes through the heat storage material, the heat is exchanged and heated, and the air is discharged from the air outlet into the oven storage to heat the oven storage. Therefore, heat radiation of the object to be heated heated by the microwave is reduced, and the object can be heated more quickly. In addition, by applying the heat released into the oven storage to the inside of the window for checking the interior of the oven, the temperature of the window surface can be raised more quickly, and the fogging inside the window can be further reduced.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a side view of an embodiment of a cooking device according to the present invention, which corresponds to claim 1 of the present invention.

FIG. 2 is a schematic sectional view showing a side view of the embodiment of the cooking device according to the present invention, which corresponds to claim 1.

FIG. 3 is a schematic sectional view showing a side view of an embodiment corresponding to claim 2 of the heating cooker of the present invention.

FIG. 4 is a schematic sectional view of a heating cooker according to a second embodiment of the present invention, as viewed from a side.

FIG. 5 is a schematic cross-sectional view seen from a plane showing an embodiment corresponding to claim 3 of the heating cooker of the present invention.

FIG. 6 is a schematic sectional view of a heating cooker according to a third embodiment of the present invention, as viewed from a plane.

[Explanation of symbols]

 2 Inside of oven storage 3 Top wall 4 Grill heater 6 Rear wall 7 Heater unit storage unit 8 Convection fan 9 Heater 12 Blow-out port 18 Heat storage material 19, 20 Heat storage material storage unit 21, 22 Heat release port 23 Damper lid 25 Heat release port 26 Heat flow passage 27 Heat inlet side 28 Damper lid 31 Magnetron 32 Cooling fan 34 Heat storage material storage unit 35 Air inlet 36 Air outlet

Claims (3)

(57) [Claims] A grill heater is provided near a top wall in an oven storage, and a convection fan and a heater are stored in a heater unit storage portion provided on one side wall, and heat of the heater is generated by rotation of the convection fan. In a heating cooker configured to be blown out from a side wall outlet and circulated in an oven storage, a heat storage material that stores a heat storage material that stores heat radiation from the grill heater in an upper side of the top wall in the oven storage. A storage section is provided, and a heat storage material storage section that stores a heat storage material that stores heat radiation from the heater is provided at a rear side of the heater unit storage section, and these heat storage material storage sections are provided at one end with the inside of the oven storage. A heat discharge port communicating with the heater unit storage portion through an openable / closable damper lid. Cooker. 2. A grill heater is provided near a top wall in the oven storage, and a convection fan and a heater are stored in a heater unit storage portion provided on one side wall, and heat of the heater is generated by rotation of the convection fan. In a heating cooker configured to be blown out from a side wall outlet and circulated in an oven chamber, a heat outlet is formed in a top wall portion in the oven chamber corresponding to a mounting position of the grill heater, A heat cooker, wherein a heat flow passage is formed on an upper side of the top wall including a discharge port, and a heat flow inlet of the heat flow passage is connected to the heater unit storage section via an openable / closable damper lid. 3. A magnetron for performing high-frequency heating, and
A cooling fan for cooling the magnetron is provided.
Exhaust heat of the magnetron cooled by the cooling fan
Cooker that is configured to be delivered into the oven
On the opposite side of the magnetron from the cooling fan
There, the waste heat side of the magnetron, the thermal storage material housing unit accommodating the heat storage material to store the heat is provided, the air inlet is formed at one end which is the magnetron side of the heat storage material housing portion, the other end A heating cooker, wherein an air outlet communicating with the inside of the oven chamber is formed in the portion, and a damper lid that can be opened and closed is provided at the air inlet.