WO2008007538A1 - Heating cooking apparatus - Google Patents

Abstract

A heating cooking apparatus enabling a reduction in heating time by reducing the time needed to increase the temperature of a heating chamber to a desired one. Since the distance between a heat source (31) spirally formed to heat the air in a heat source chamber (30) and a circulation fan (32) is as short as less than 10 mm, the air blowing efficiency is increased. Since a coating (25) is formed on the side surface of the heat source chamber (30) of a partition plate (22) which is the boundary between the heat source chamber (30) and the heating chamber (20), the heat from the heat source (31) is accumulated in the coating (25). The heat is radiated from the coating (25) and heats the air in the heat source chamber (30) as a second heat source. Consequently, when the hot air heated by the heat source (31) in the heat source chamber (30) is fed into the heating chamber (20) by the circulation fan (32) for cooking, the time needed to increase the temperature of the air in the heat source chamber (30) to a predetermined one can be shortened, and the power for the heating treatment can be saved.

Description

 Specification

 Cooker

 Technical field

 [0001] The present invention relates to a heating cooker that heats an object to be heated contained in a heating chamber with hot air from a heat source.

 Background art

 As an example of a conventional cooking device, a cooking device as shown in FIG. 11 is known (see, for example, Patent Document 1).

 As shown in FIG. 11, the heating cooker 100 disclosed in Patent Document 1 has a heating chamber 102 inside a main body 101, and a door 104 opens and closes at an opening 103 of the heating chamber 102 for taking in and out food. It is provided freely. A hot air chamber 110 is provided behind the heating chamber rear wall 105, and a hot air circulation fan 107 that is rotationally driven by an electric heater 106 and a motor 108 is provided in the hot air chamber 110. In general, the upper surface, the left and right side surfaces of the heating chamber 102, and the heating chamber side surface of the heating chamber rear wall 105 are painted force S, and the hot air chamber 110 side surface of the heating chamber rear wall 105 is unpainted.

 Accordingly, the air in the hot air chamber 110 is heated by the electric heater 106, and the heated hot air is sent by the hot air circulation fan 107 to the blower heating chamber 102 provided on the rear wall 105 of the heating chamber to be placed on the mounting table 109. Patent Document 1: Japanese Patent No. 3259473 (Fig. 1)

 Disclosure of the invention

 Problems to be solved by the invention

[0003] By the way, in a heating cooker, the temperature of the heating chamber is increased from the same state as the room temperature to a predetermined cooking temperature and the heat treatment is performed. Therefore, in order to shorten the heat treatment time, a so-called rise time is used. There is a need for shortening. In addition, shortening the heat treatment time is also desired from the viewpoint of energy saving.

[0004] The present invention has been made to solve the conventional problems. The heating chamber is brought to a desired temperature. It is an object of the present invention to provide a heating controller that can shorten the heat treatment time by shortening the temperature raising time.

 Means for solving the problem

 [0005] The heating cooker of the present invention is adjacent to the heating chamber through a heating chamber capable of accommodating an object to be heated and a cutting plate at the rear of the heating chamber, and circulates heat from the heat source and the heat source. A heat source chamber for storing a circulation fan to be formed, wherein the heat source is formed in a plurality of spirals, and the circulation fan is disposed inside the circulation of the heat source. The distance from the circulation fan is less than 10mm.

 [0006] With this configuration, the heat exchange efficiency is improved because the distance between the heat source formed in a spiral shape to heat the air in the heat source chamber and the circulation fan is less than 10 mm. For this reason, when the hot air heated by the heat source in the heat source chamber is sent to the heating chamber by the circulation fan to perform the heat treatment, the time for heating the air in the heat source chamber to a predetermined temperature is shortened. In addition, power saving can be achieved.

 [0007] In addition, the heating cooker of the present invention is adjacent to the heating chamber via a heating chamber capable of accommodating an object to be heated, and a partition plate at the rear of the heating chamber, and circulates heat from the heat source and the heat source. A heat source chamber that houses a circulation fan to be circulated, wherein the heat source is formed in a plurality of spirals, and the circulation fan is disposed inside the circulation of the heat source. The heat source and the circulation fan are arranged close to each other, and the planar shape along the rotation axis of the circulation fan is a shape that expands toward the outer periphery.

 [0008] With this configuration, the shape of the circulation fan that sends the air heated by the heat source to the heating chamber in the heat source chamber is expanded toward the outer periphery, so that the area increases, and the heat from the heat source is stored in the heat storage chamber. I'm going to be. Therefore, the heat from the heat source is stored in the circulation fan, and then the heat in the heat source chamber is heated as a second heat source by dissipating heat from the circulation fan by the blowing action. For this reason, when the hot air heated by the heat source in the heat source chamber is sent to the heating chamber by the circulation fan and the heat treatment is performed, it is possible to reduce the time for heating the air in the heat source chamber. In addition, since the time required for temperature increase is shortened, power saving can be achieved.

[0009] Further, in the heating cooker of the present invention, the leading end in the rising direction of the blade portion of the circulation fan is the front. It does not protrude from the end of the heat source in the direction of the spiral axis.

 [0010] With this configuration, the blade portion of the circulation fan rotates in the range inside the spiral heat source, so that the heat exchange efficiency is improved. For this reason, when the hot air heated by the heat source in the heat source chamber is sent to the heating chamber by the circulation fan and the heat treatment is performed, the time for heating the air in the heat source chamber to a predetermined temperature is shortened. In addition to being able to reduce power consumption.

 [0011] In addition, the heating cooker of the present invention has a heat source chamber that houses a circulation fan, and in the depth direction of the heating chamber with respect to the flat area of the heating chamber along the depth direction of the heating chamber. The flat area of the heat source room along the line is almost the same.

 [0012] With this configuration, since the cross-sectional area of the heat source chamber and the cross-sectional area of the heating chamber are almost the same, air can be blown from the corner of the heating chamber, improving the blowing efficiency and reaching the corner of the heating chamber. You can blow without any trouble. For this reason, when the hot air heated by the heat source in the heat source chamber is sent to the heating chamber by the circulation fan to perform the heat treatment, the heat distribution in the heating chamber is made uniform and the air in the heat source chamber is It is possible to shorten the time for raising the temperature to a predetermined temperature and to save power.

 [0013] Further, the heating cooker of the present invention has a heat source chamber that accommodates the circulation fan, the heat source is formed to circulate, the circulation fan is disposed inside the circulation of the heat source, and A fixing member for fixing the heat source to the depth surface of the heat source chamber has a wall portion that abuts against a side surface of the heat source chamber.

 [0014] With this configuration, the fixing member for fixing the circulating heat source to the heat source chamber has the wall portion that contacts the side surface of the heat source chamber. Therefore, the wall circulation direction is regulated by the wall portion. Hot air can be efficiently supplied to the heating chamber. For this reason, when the hot air heated by the heat source in the heat source chamber is sent to the heating chamber by the circulation fan to perform the heat treatment, the time for heating the air in the heat source chamber to a predetermined temperature is shortened. In addition, it can save power.

[0015] Further, the heating cooker of the present invention includes a heating chamber that is formed of a cylindrical portion and a partition plate and can accommodate an object to be heated, a heating source that is adjacent to the heating chamber via the partition plate, and the heating source. A heat source chamber that houses a circulation fan that circulates heat from the heat source, and the partition plate A heat storage configuration was applied to the side surface on the heat source chamber side.

 [0016] With this configuration, since the heat storage configuration is applied to the side surface of the partition plate, which is the boundary between the heat source chamber and the heating chamber, the heat from the heat source is stored, and then the heat source chamber side of the partition plate is stored. By releasing heat from the side, the air in the heat source chamber is heated as the second heat source. For this reason, when the hot air heated by the heat source in the heat source chamber is sent to the heating chamber by the circulation fan and the heat treatment is performed, the time for heating the air in the heat source chamber can be shortened. In addition, since the time required for temperature increase is shortened, power saving can be achieved.

 [0017] In the cooking device of the present invention, the heat storage configuration on the side surface on the heat source chamber side is configured by forming a coating film on the side surface on the heat source chamber side.

 [0018] With this configuration, since the coating film is formed on the side surface of the heat source chamber of the partition plate that is the boundary between the heat source chamber and the heating chamber, the heat from the heat source is stored in the coating film and then dissipated from the coating film. As a result, the air in the heat source chamber is heated as the second heat source. For this reason, when the hot air heated by the heat source in the heat source chamber is sent to the heating chamber by the circulation fan to perform the heat treatment, the time for heating the air in the heat source chamber can be shortened. In addition, since the time required for temperature increase is shortened, power saving can be achieved.

 [0019] Further, in the heating cooker of the present invention, the heat storage configuration on the side surface on the heat source chamber side is configured by using a partition plate made of a material different from the left and right wall surfaces of the heating chamber.

 [0020] With this configuration, unlike the material on the left and right of the cylindrical portion that forms the heating chamber or the like on the partition plate, the heat from the heat source is controlled by using a material that has high heat absorption efficiency, heat storage efficiency, heat dissipation efficiency, and the like. By storing heat in the cut plate and then radiating heat from the partition plate, the air in the heat source chamber is heated as a second heat source. For this reason, when the hot air heated by the heat source in the heat source chamber is sent to the heating chamber by the circulation fan to perform the heat treatment, the time for raising the temperature of the air in the heat source chamber can be shortened. In addition, since the time required for temperature rise is shortened, power saving can be achieved.

 [0021] Further, in the heating cooker of the present invention, the heat storage configuration on the side surface on the heat source chamber side is configured by forming irregularities on the side surface on the heat source chamber side.

[0022] With this configuration, since the surface area is increased by forming irregularities on the side surface of the heat source chamber of the partition plate, the heat absorption efficiency, heat storage efficiency, and heat dissipation efficiency of the partition plate can be increased. Therefore, from the heat source The heat is stored in the partition plate, and then the heat in the heat source chamber is heated as a second heat source by radiating heat from the partition plate. For this reason, when the hot air heated by the heat source in the heat source chamber is sent to the heating chamber by the circulation fan and the heat treatment is performed, the time for raising the temperature of the air in the heat source chamber can be shortened. In addition, since the time required for temperature increase is shortened, power saving can be achieved.

 The invention's effect

 [0023] According to the present invention, since the distance between the heat source formed in a spiral shape to heat the air in the heat source chamber and the circulation fan is reduced, the heat exchange efficiency can be improved. For this reason, when the hot air heated by the heat source in the heat source chamber is sent to the heating chamber by the circulation fan and the heat treatment is performed, the time for raising the temperature of the air in the heat source chamber to a predetermined temperature can be shortened. In addition, it is possible to provide a heating cooker that has the effect of saving power.

[0024] Furthermore, the present invention has a configuration in which a heat storage configuration is applied to the side of the heat source chamber of the partition plate that is the boundary between the heat source chamber and the heating chamber, so that heat from the heat source is stored in the heat storage configuration, Next, by releasing heat from the heat storage configuration, the air in the heat source chamber is heated as a second heat source.

 For this reason, it is possible to provide a cooking device that can shorten the time required to raise the temperature of the air in the heat source chamber and can save power by reducing the temperature raising time. It can be done.

 Brief Description of Drawings

 FIG. 1 is an internal configuration diagram of a cooking device according to a first embodiment of the present invention.

 [Figure 2] Front view of circulation fan and electric heater

 FIG. 3 is a perspective view showing the tip shape of the circulation fan blades.

 [Figure 4] Cross-sectional view showing the positional relationship between the circulation fan and the electric heater

 [Fig. 5] (A) is a cross-sectional view at the Va-Va position in Fig. 1. (B) is a cross-sectional view at the Vb-Vb position in Fig. 1. [Fig. 6] (A) is a state in which the electric heater is fixed to the heat source chamber. (B) is a perspective view of the fixing member

[Fig. 7] (A) is a table showing various amounts of conventional fans and various amounts of fans of the shape of the present invention, and (B) is a graph comparing the flow rates of the fans of (A). FIG. 8 is an internal configuration diagram of a cooking device according to a second embodiment of the present invention.

 FIG. 9 is an internal configuration diagram of a heating cooker according to a third embodiment of the present invention.

 FIG. 10 is an internal configuration diagram of a heating cooker according to a fourth embodiment of the present invention.

 [Figure 11] Cross-sectional view of a conventional cooking device

 Explanation of symbols

[0026] 10 Heating cooker

 20 Heating chamber

 21 Tube

 22 Partition plate

 25 Coating film (heat storage composition)

 30 Heat source room

 30a depth

 31 Electric heater (heat source)

 32 Circulation fan

 32a Feather

 34 Fixing member

 M meat (to be heated)

 BEST MODE FOR CARRYING OUT THE INVENTION

 [0027] (First embodiment)

 Hereinafter, the heating cooker of embodiment of this invention is demonstrated using drawing. FIG. 1 is an internal configuration diagram of a heating cooker according to a first embodiment of the present invention, FIG. 2 is a front view of a circulation fan and an electric heater, and FIG. 3 is a perspective view showing a tip shape of a blade portion of the circulation fan. 4 is a cross-sectional view showing the positional relationship between the circulation fan and the electric heater, Fig. 5 (A) is a cross-sectional view of the Va-Va position in Fig. 1, and Fig. 5 (B) is a cross-sectional view of the Vb-Vb position in Fig. 1. Fig. 6 (A) is a front view of the heat source chamber 30 showing the state in which the electric heater is fixed to the heat source chamber, Fig. 6 (B) is a perspective view of the fixing member, and Fig. 7 (A) is the amount of the conventional fan and this FIG. 7B is a graph showing various amounts of the fan having the shape of the invention, and FIG.

[0028] As shown in FIG. 1, the heating cooker 10 according to the first embodiment of the present invention includes a cylindrical portion 21 and A heating chamber 20 that is formed by the partition plate 22 and can accommodate, for example, meat M, which is an object to be heated, is adjacent to the heating chamber 20 via the cutting plate 22, and is a heat source such as an electric heater 31 and the electric heater 31. And a heat source chamber 30 that houses a circulation fan 32 that is rotated by a motor 33 that circulates the hot air 11 heated by the air.

 [0029] The heating chamber 20 is a cubic-shaped box-shaped main body case 23 that is formed by a cylindrical section 21 having a rectangular cross section and a partition plate 22 that is a rear wall of the heating chamber, and a front surface of the main body case 23. It has a door 24 that is openable and closable at the outlet of the heated object. The inner surface (upper surface and both left and right side surfaces) of the cylindrical portion 21 in the heating chamber 20 and the side surface of the heating chamber 20 of the partition plate 22 are heat-resistant coated. The door 24 can be opened and closed in the vertical direction by, for example, a lower end hinged to the lower edge of the body case 23.

 In the heating cooker 10, the heating chamber 20 and the heat source chamber 30 are provided separately, and the heating chamber 20 and the heat source chamber 30 are connected via the partition plate 22. Alternatively, the heating chamber 20 and the heat source chamber 30 can be provided by attaching a partition plate 22 near the rear end of the main body case 23.

 [0030] In the center of the partition plate 22, there is provided an intake vent hole 22a for sucking air from the heating chamber 20 side to the heat source chamber 30 side, and the peripheral portion of the partition plate 22 is from the heat source chamber 30 side to the heating chamber 20 side. A ventilation hole 22b for blowing air is provided. Each ventilation hole 22a, 22b can be formed as a number of punch holes. Accordingly, the air in the heating chamber 20 is drawn into the heat source chamber 30 from the intake vent hole 22a by the circulation fan 32, and the air heated by the electric heater 31 in the heat source chamber 30 is sent to the heating chamber 20 from the ventilating hole 22b. It has become like that.

 [0031] Further, the surface of the partition plate 22 on the heat source chamber 30 side is coated with a coating material 25 having a good heat absorption efficiency, heat storage efficiency, heat dissipation efficiency, etc., for example, with a ceramic paint having a thickness of 20 to 30 μm. The coating film 25 constitutes a heat storage configuration. As a result, the heat from the electric heater 31 is once stored in the coating film 25 of the partition plate 22 and then radiated from the coating film 25 to heat the air in the heat source chamber 30 as a second heat source. For this reason, when the temperature of the air in the heat source chamber 30 is raised by the electric heater 31, the temperature raising time can be shortened and the time required for the temperature raising can be shortened, so that power saving can be achieved. .

As shown in FIG. 2, the circulation fan 32 is provided with a plurality of (for example, eight) blade portions 32a radially from the center, and the center is fixed to the rotating shaft 33a of the motor 33. . Circulation As shown in FIG. 3, the blade 32a of the fan 32 is formed of a bottom surface 32b parallel to the rotation plane and an inclined surface 32c inclined with respect to the rotation plane. Therefore, as shown by the arrow in FIG. 1, when the circulation fan 32 is rotated by the motor 33, the air is moved rearward (right side in FIG. 1) by the inclined surface 32c, and from the intake vent hole 22a of the partition plate 22. Air in the heating chamber 20 is sucked into the heat source chamber 30 and hot air is sent from the ventilation holes 22 b along the inner wall of the heat source chamber 30 to the heating chamber 20.

As shown in FIG. 2, the electric heater 31 circulates around the outside of the circulation fan 32 and has a configuration in which the distance d between the electric heater 31 and the circulation fan 32 is d <10 mm. That is, for example, the distance d between the electric heater 31 formed in a spiral shape to heat the air in the heat source chamber 30 and the outermost periphery of the circulation fan 32 is small, so that the electric heater 31 is heated. The heat exchange efficiency of sending the heated air to the heating chamber 20 can be improved, and the time for heating the heating chamber 20 to a desired temperature can be shortened. Along with this, power saving can be achieved.

 [0034] As shown in FIGS. 2 and 3, the shape of the circulation fan 32 expands toward the outer periphery of the planar shape force in the rotation plane. That is, in FIG. 3, the width B1 of the tip portion is B1> B2 with respect to the width B2 of the middle portion. Thus, since the shape of the circulation fan 32 is expanded toward the outer periphery, the area of the blade portion 32a can be increased, and the heat storage is reduced in the portion having a large area. Heat is stored in the circulation fan 32. Then, by radiating heat from the circulation fan 32, the air in the heat source chamber 30 is heated as a second heat source. For this reason, the time for heating the air in the heat source chamber 30 can be shortened. Moreover, since the time required for temperature increase is shortened, power saving can be achieved.

Further, as shown in FIG. 4, the rising end 32d of the blade 32a of the circulation fan 32 does not protrude from the end 31a in the spiral axial direction (upward in FIG. 4) of the electric heater 31. Yes. That is, the tip 32d of the inclined surface 32c of the blade portion 32a rising in the direction of the spiral axis in the circulation fan 32 is included in the thickness of the electric heater 31. Therefore, the air heated by the electric heater 31 that efficiently blows air to the high-temperature part around the electric heater 31 and does not send unnecessary air that does not contribute to heat exchange can be efficiently sent to the heating chamber 20. it can. For this reason, the time for heating the heating chamber 20 to a desired temperature is shortened. In addition, power saving can be achieved.

 Furthermore, the flat area of the heat source chamber 30 along the depth direction of the heating chamber 20 shown in FIG. 5 (B) with respect to the flat area A1 along the depth direction of the heating chamber 20 shown in FIG. 5 (A). A2 is almost the same (for example, about A2 = 0.8 X Al). That is, since the cross-sectional area A2 of the heat source chamber 30 and the cross-sectional area A1 of the heating chamber 20 are substantially the same, the air heated by the heat source chamber 30 passes through the periphery of the heat source chamber 30 and is heated. The air can be smoothly blown to the corners of the air heater, so that the air blowing efficiency can be improved and the air can be blown evenly to the corners of the heating chamber 20. For this reason, it is possible to shorten the time for raising the temperature of the heating chamber 20 to a desired temperature, to make the heat distribution in the heating chamber uniform, and to save power.

 Further, as shown in FIG. 6A, the electric heater 31 is fixed to the depth surface 30 a of the heat source chamber 30 by a fixing member 34. Further, as shown in FIG. 6 (B), the fixing member 34 is formed of, for example, an insulator, and has a base portion 34a for attaching to the depth surface 30a, and is fixed to the depth surface 30a with a screw or the like. . The base portion 34a is provided with a planar wall portion 34b that rises at a right angle, and one end surface 34d of the wall portion 34b contacts the side surface (the ceiling surface and the bottom surface in FIG. 6) of the heat source chamber 30. It ’s like that. Further, a grip portion 34c for gripping the circulating electric heater 31 at a predetermined interval is provided at the other end of the wall portion 34b. Therefore, the wall 34b regulates the air circulation direction by the circulation fan 32, so that hot air can be efficiently supplied to the heating chamber. For this reason, when hot air heated by the electric heat heater 31 in the heat source chamber 30 is sent to the heating chamber 20 by the circulation fan 32 to perform heat treatment, the temperature of the air in the heating chamber 20 is increased to a predetermined temperature. As well as power savings.

 In FIG. 7, the air flow rate Q between the conventional circulation fan and the circulation fan 32 according to the present invention is compared. Using the conventional fan having the dimensions shown in FIG. 7A and the fan according to the present invention, the flow rate Q was compared while changing the static pressure. As a result of the experiment, as shown in FIG. 7 (B), when the circulation fan 32 according to the present invention is used, the exchange of wind between the heating chamber and the heat source chamber is compared with the case where the conventional circulation fan is used. So, assuming that the static pressure Hs can be approximately zero, we can see that the airflow has increased by 40%.

[0039] As described above, in the heating cooker 10 according to the first embodiment of the present invention, the circulation is performed. Since the distance d between the electric heater 31 circulating around the outside of the ring fan 32 and the circulation fan 32 is set to lm m d d 10 mm, the hot air heated by the electric heater 31 is heated. The efficiency of the air sent to the heater can be improved, and the time for heating the heating chamber 20 to a desired temperature can be shortened. Accordingly, power saving can be achieved. In addition, since the coating film 25 is formed on the side surface of the heat source chamber 30 of the partition plate 22 that is the boundary between the heat source chamber 30 and the heating chamber 20, the heat from the electric heater 31 is stored in the coating film 25, and then from the coating film 25. By releasing the heat, the air in the heat source chamber 30 is heated as a second heat source. For this reason, when the hot air heated by the electric heater 31 in the heat source chamber 30 is sent to the heating chamber 20 by the circulation fan 32 and heat treatment is performed, the time for heating the air in the heat source chamber 30 is shortened. Power S can be. In addition, since the time required for temperature increase is shortened, power saving can be achieved.

 [0040] (Second Embodiment)

 Next, a heating cooker according to the second embodiment of the present invention will be described.

 As shown in FIG. 8, in the heating cooker 10B, a heating chamber 20 that is formed by a cylindrical portion 21 and a partition plate 26 and can store, for example, meat M that is an object to be heated, and the partition plate 26 are used. The heat source chamber 30 is adjacent to the heating chamber 20 and houses a heat source, for example, an electric heater 31 and a circulation fan 32 that circulates heat from the electric heat heater 31, and the partition plate 26 is the cylindrical portion 31. It is made of different materials.

 In addition, the same code | symbol is attached | subjected to the site | part which is common in the heating cooker 10 which concerns on 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

 [0041] As with the partition plate 22 of the first embodiment described above, the partition plate 26 is provided with an intake vent hole 22a and an air vent hole 22b. The material for forming the partition plate 26 is as follows. Unlike the material used to form the cylinder 31, the heat absorption efficiency, heat storage efficiency, heat dissipation efficiency, etc. are good, such as aluminum paint, a steel-based ceramic coating containing iron, manganese, etc. with a thickness of about 25 microns, In addition, in order to improve thermal conductivity, a coated material containing industrial diamond can be used.

[0042] As described above, the heating cooker 10B according to the second embodiment of the present invention has the functions and effects of the first embodiment described above, and includes the heat source chamber 30, the heating chamber 20, and the like. Unlike the cylinder part 21, the partition plate 26, which is the boundary of the tube, is made of a material having high heat absorption efficiency, heat storage efficiency, heat dissipation efficiency, etc., so the heat from the electric heater 31 is stored in the partition plate 26 and then cut off. By releasing heat from the plate 26, the air in the heat source chamber 30 is heated as a second heat source. Therefore, when the hot air heated by the electric heater 31 in the heat source chamber 30 is sent to the heating chamber 20 by the circulation fan 32 and heat treatment is performed, the time for heating the air in the heat source chamber 30 is shortened. be able to. In addition, since the time required for temperature rise is shortened, power saving can be achieved.

[0043] (Third embodiment)

 Next, a heating cooker according to a third embodiment of the present invention will be described.

 As shown in FIG. 9, in the heating cooker 10C, a heating chamber 20 that can store, for example, meat M, which is an object to be heated, is formed by a cylindrical portion 21 and a partition plate 27, and a partition plate 27. And a heat source chamber 30 that accommodates a circulation fan 32 that circulates heat from the electric heater 31, for example, an electric heater 31 that is adjacent to the heating chamber 20 and that circulates heat from the electric heater 31, and the heat source chamber 30 side of the partition plate 27 Concave and convex portions 27a are formed on the side surfaces. In addition, the same code | symbol is attached | subjected to the site | part which is common in the heating cooker 10 which concerns on 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

 Like the partition plate 22 of the first embodiment described above, the partition plate 27 is provided with an intake vent hole 22a and an air vent hole 22b, and is provided on the side surface of the heat source chamber 30 of the partition plate 27. The unevenness 27a can be provided by, for example, sandblasting.

[0045] As described above, the heating cooker 10C according to the third embodiment of the present invention has the effects and advantages of the first embodiment described above, and is at the boundary between the heat source chamber 30 and the heating chamber 20. Since the uneven surface 27a is provided on the side surface of the heat source chamber 30 of the partition plate 27 to increase the surface area, the heat absorption efficiency, heat storage efficiency, and heat dissipation efficiency of the partition plate 27 can be increased. Therefore, the heat from the electric heater 31 is stored in the partition plate 27 and then radiated from the partition plate 27 to heat the air in the heat source chamber 30 as a second heat source. For this reason, when the heat source and air heated by the electric heater 31 in the heat source chamber 30 are sent to the heating chamber 20 by the circulation fan 32 and heat treatment is performed, the temperature of the air in the heat source chamber 30 is increased. It is possible to shorten the time to be performed. In addition, since the time required for temperature increase is shortened, power saving can be achieved. [0046] (Fourth embodiment)

 Next, a heating cooker according to a fourth embodiment of the present invention will be described.

 As shown in FIG. 10, in the heating cooker 10D, a heating chamber 20 that is formed by a cylinder 21 and a partition plate 28 and can accommodate, for example, meat M that is an object to be heated, and a heating chamber through the partition plate 28. 20 and a heat source chamber 30 that accommodates a circulation fan 32 that circulates heat from the electric heater 31 that is a heat source, for example, and a heat source, and a heat source chamber 30 that circulates heat from the electric heater 31. A metal layer 28a is formed. In addition, the same code | symbol is attached | subjected to the site | part which is common in the heating cooker 10 which concerns on 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

 [0047] The partition plate 28 is provided with an intake vent hole 22a and an air vent hole 22b, similar to the partition plate 22 of the first embodiment described above. Further, the metal layer 28a can be provided by stacking another metal plate on the cutting plate 28 and joining them by, for example, riveting. It should be noted that the ventilation holes 22a and 22b are also provided in the metal layer 28a at the same position and shape as the partition plate 28.

 [0048] As described above, the heating cooker 10D according to the fourth embodiment of the present invention has the effects and advantages of the first embodiment described above, and at the boundary between the heat source chamber 30 and the heating chamber 20. Since the metal layer 28a is provided on the side surface of the heat source chamber 30 of a certain partition plate 28, the heat absorption efficiency, heat storage efficiency, and heat dissipation efficiency of the partition plate 28 can be improved.

 Therefore, heat from the electric heater 31 as a heat source is stored in the partition plate 28 and the metal layer 28a, and then heat is released from the partition plate 28 and the metal layer 28a, thereby heating the air in the heat source chamber 30 as a second heat source. It will be. For this reason, when the hot air heated by the electric heater 31 in the heat source chamber 30 is sent to the heating chamber 20 by the circulation fan 32 and heat treatment is performed, the time for heating the air in the heat source chamber 30 is shortened. can do. In addition, since the time required for temperature increase is shortened, power saving can be achieved.

 [0049] Note that the cooking device of the present invention is not limited to the above-described embodiments, and can be appropriately modified and improved.

[0050] This application is based on Japanese patent applications (Japanese Patent Application Nos. 2006-189217 and 2006-189218) filed on July 10, 2006, the contents of which are incorporated herein. Industrial applicability

 [0051] As described above, the heating cooker according to the present invention improves the blowing efficiency because the distance between the heat source formed in a spiral shape and the circulation fan is reduced in order to heat the air in the heat source chamber. Can be made. For this reason, when the hot air heated by the heat source in the heat source chamber is sent to the heating chamber by the circulation fan and the heat treatment is performed, the time for heating the air in the heat source chamber to a predetermined temperature is shortened. In addition to being able to reduce power consumption, it is effective as a cooking device that heats and heats the object to be heated contained in the heating chamber with hot air from a heat source.

 [0052] In addition, the heating cooker according to the present invention is configured to increase the heat absorption efficiency, heat storage efficiency, and heat dissipation efficiency of the side surface of the heat source chamber of the partition plate that is the boundary between the heat source chamber and the heating chamber. The heat is stored in the partition plate, etc., and then the heat in the heat source chamber is heated as a second heat source by radiating heat from the partition plate. Therefore, it is possible to provide a heating cooker that can shorten the time for raising the temperature of the air in the heat source chamber and can save power by shortening the temperature raising time. It is useful as a heating cooker that heats an object to be heated contained in a heating chamber with hot air from a heat source.

Claims

The scope of the claims  [1] A heating chamber that can accommodate an object to be heated, and a heat source chamber that adjoins the heating chamber via a partition plate at the rear of the heating chamber and houses a heat source and a circulation fan that circulates heat from the heat source. A heating cooker in which the heat source is formed in a plurality of spirals, and the circulation fan is arranged inside the circuit around the heat source, and a separation dimension between the heat source and the circulation fan is less than 10 mm A cooking device characterized by being.  [2] A heating chamber that can accommodate an object to be heated, and a heat source chamber that accommodates a heat source and a circulation fan that circulates heat from the heat source while being adjacent to the heating chamber via a partition plate at the rear of the heating chamber. A heat cooker in which the heat source is formed in a plurality of spirals, and the circulation fan is disposed inside the circulation of the heat source, and the heat source and the circulation fan are arranged close to each other, 2. The cooking device according to claim 1, wherein the planar shape along the rotation axis of the circulation fan is a shape that expands toward the outer periphery.  [3] The cooking device according to claim 2, wherein a tip end in a rising direction of the blade portion of the circulation fan does not protrude from an end portion in the spiral axis direction of the heat source.  [4] It has a heat source chamber for accommodating a circulation fan, and the flat area of the heat source chamber along the depth direction of the heating chamber is substantially the same as the flat area of the heating chamber along the depth direction of the heating chamber. The cooking device according to claim 1 or 2, wherein:  [5] It has a heat source chamber for accommodating the circulation fan, the heat source is formed to circulate, and the circulation fan is disposed inside the circulation of the heat source, and the heat source is connected to the depth surface of the heat source chamber. The heating cooker according to claim 1 or 2, wherein the fixing member for fixing to a wall has a wall portion that abuts against a side surface of the heat source chamber.  [6] A heating chamber formed of a cylindrical portion and a partition plate and capable of accommodating an object to be heated, and a circulation fan that circulates a heat source and heat from the heat source while adjoining the heating chamber via the partition plate A heating cooker having a heat storage configuration on a side surface of the partition plate on the heat source chamber side.  [7] The heat cooker according to claim 6, wherein the heat storage configuration on the side surface on the heat source chamber side is configured by forming a coating film on the side surface on the heat source chamber side. [8] The heat storage configuration on the side of the heat source chamber is such that the partition plate is made of a material different from the left and right walls of the heating chamber. The cooking device according to claim 6, wherein  The heat cooker according to claim 6, wherein the heat storage configuration on the side surface on the heat source chamber side is configured by forming irregularities on the side surface on the heat source chamber side.