JP5623096B2 - Heating device - Google Patents

Description

  The present invention also provides a heating device (“convection oven”) that heats food by supplying hot air generated in the combustion chamber to the heating chamber containing the food, and circulating the supplied heat inside the heating chamber. Called).

FIG. 1 is a cross-sectional view partially showing a schematic configuration of a convection oven according to the first prior art (Non-Patent Document 1). The convection oven 10 according to the first prior art includes a combustion chamber 11 for generating hot air, a heating chamber 12 disposed above the combustion chamber 11, a fan 13 disposed inside the heating chamber 12, and a heating chamber. 12, and a baffle plate 14 that is detachably provided to form a flow path of hot air in the interior of 12.
The fan 13 rotates by being fixed to a shaft 15 a of a motor 15 that is rotatably provided through an opening 12 a formed in the inner wall of the heating chamber 12. The combustion chamber 11 and the heating chamber 12 communicate with each other via an exhaust port 16.

  When the convection oven 10 operates, hot air is generated by a burner (not shown) disposed in the combustion chamber 11. When the fan 13 disposed in the heating chamber 12 rotates, hot air in the combustion chamber 11 is sucked into the heating chamber 12 from the exhaust port 16 (A1), passes through the baffle plate 14, and the fan. 13 (A2). The hot air supplied to the front of the fan 13 is sucked into the fan 13 and discharged from the outer peripheral surface of the fan 13 (A3). The hot air discharged from the outer peripheral surface of the fan 13 is sent to the cooking area 12b where the food is arranged through a gap provided between the baffle plate 14 and the inner wall of the heating chamber 12. The hot air sent to the cooking area 12b heats the ingredients arranged in the cooking area 12b, and then passes through the baffle plate 14 and is supplied in front of the fan 13 (A4). The hot air supplied in front of the fan 13 is sucked into the fan 13 and circulates in the heating chamber 12 by following the same path as the above-described path A3. Thereby, the foodstuff arrange | positioned at the cooking area | region 12b is heated.

  FIG. 2 is a cross-sectional view partially showing a schematic configuration of a convection oven according to the second prior art (Non-Patent Document 2). Unlike the convection oven 10 according to the first conventional technology, the convection oven 20 according to the second conventional technology adopts a configuration in which hot air generated in the combustion chamber 11 is supplied to the downstream side of the fan 13. 21 adopts a configuration in which the hot air generated in 21 is supplied to the upstream side of the double fan 23. In order to realize such a configuration, the hot air in the combustion chamber 21 is not supplied to the heating chamber 22 via the baffle plate 24 but is provided in the exhaust port 26 that allows the combustion chamber 21 and the heating chamber 22 to communicate with each other. It is supplied to the heating chamber 22 through the component 27 provided.

  When the convection oven 20 operates, the double fan 23 rotates, so that hot air generated in the combustion chamber 21 is sucked into the combustion chamber 22 through the exhaust port 26 (B1), and the component 27 is removed. To the rear of the double fan 23 (B2). The hot air supplied to the rear of the double fan 23 is sucked into the first fan 23 a in the double fan 23 and discharged from the outer peripheral surface of the first fan 23 a (B 3), and between the baffle plate 24 and the heating chamber 22. It passes through the gap provided between the inner wall and the cooking area 22b (B4). The hot air that has reached the cooking area 22b circulates in the cooking area 22b, passes through the baffle plate 24, and is supplied to the front of the double fan 23 (B5). The hot air supplied to the front of the double fan 23 is sucked into the second fan 23b of the double fan 23 and discharged from the outer peripheral surface of the second fan 23b (B6). The hot air discharged from the outer peripheral surface of the second fan 23b is sent again to the cooking area 22b. The hot air sent to the cooking region 22b is circulated through the heating chamber 22 by being sucked into the second fan 23b again through the same route as the route B5 described above. Thereby, the foodstuff arrange | positioned at the cooking area | region 22b is heated.

Maruzen Co., Ltd., Power Cook Gas Range, MGRX-096D (Commercial Kitchen Equipment General Catalog October 2008) Comet Kato Co., Ltd., Gas Range, XY-975F (General Catalog January 2009)

However, the convection oven according to the related art described above has various problems described below.
That is, first, the convection oven 10 according to the first prior art employs a configuration in which the baffle plate 14 is integrally attached to the exhaust port 16 that allows the combustion chamber 11 and the heating chamber 12 to communicate with each other. Therefore, if the convection oven 10 is erroneously operated with the baffle plate 14 removed by cleaning or inspection, the baffle plate 14 that directs the hot air in the combustion chamber 11 to the front of the fan 13 does not exist. Hot air stagnate inside the chamber 11. As a result, normal combustion is not performed inside the combustion chamber 11, which is extremely dangerous. Further, as apparent from FIG. 1, the baffle plate 14 is present in the region connecting the lower portion of the cooking region 12 b of the combustion chamber 12 and the lower portion of the fan 13. The convection in which the hot air reaches the lower part of the cooking area 12b through the lower part of the baffle plate 14 cannot be ensured. As a result, the convection of the hot air inside the heating chamber 12 is deteriorated, and baking unevenness occurs in the food arranged in the cooking area 12b (especially the baking of the food arranged in the lower part of the cooking area 12b is arranged in the upper part. Tend to be weaker than that of processed ingredients).

  Next, the convection oven 20 according to the second prior art employs a configuration in which hot air generated in the combustion chamber 21 is supplied to the rear of the double fan 23 using the component 27, whereby the double fan 23 It is possible to ensure convection in which the hot air discharged from the lower part of the outer peripheral surface passes through the lower part of the baffle plate 24 (opening provided therein) and reaches the lower part of the cooking region 22b. However, it is necessary to provide a space for disposing the component 27 behind the double fan 23. Therefore, there is a useless space between the double fan 23 and the inner wall on the rear side of the heating chamber 22 (the right inner wall in FIG. 2). As a result, it becomes impossible to design a compact convection oven.

  Furthermore, the convection ovens according to the first and second prior arts both have dedicated parts for guiding the hot air to the height near the center of the fan at the exhaust port connecting the combustion chamber and the heating chamber. There is a need to. That is, in the convection oven 10 (FIG. 1) according to the first prior art, it is necessary to specially prepare a dedicated baffle plate 14 having a configuration for guiding the hot air to a height near the center of the fan 13. On the other hand, in the convection oven 20 (FIG. 2) according to the second prior art, it is necessary to separately prepare a component 27 that guides the hot air to a height near the center of the double fan 23. The dedicated component having such a complicated configuration is not easy to manufacture, and thus becomes expensive.

  Furthermore, in the convection ovens according to the first and second prior arts, the hot air from the combustion chamber and the hot air circulated through the inside of the heating chamber are directly or indirectly transmitted to the shaft of the motor to be transmitted to the motor. Increasing the temperature may cause the motor to fail or shorten the life of the motor.

  The present invention has been made in view of such problems, and an object thereof is to provide a heating apparatus that addresses at least one of the problems described above.

  A heating device according to the present invention is a heating device used for heating food, and is disposed above a combustion chamber in which a discharge port for generating hot air and discharging the hot air is formed. A suction port for sucking hot air is formed in the outer wall extending in the vertical direction, and a heating chamber that heats the stored food with the hot air sucked and a space between the outer wall of the heating chamber and the outer wall along the outer wall An auxiliary wall provided so as to communicate with the exhaust port formed in the combustion chamber and the suction port formed in the heating chamber, and the suction port inside the heating chamber. And a fan for forcibly sucking hot air generated in the combustion chamber from the suction port into the heating chamber by rotating in a facing manner.

According to the present invention, the hot air generated in the combustion chamber is guided to the side of the fan through the gap formed between the outer wall of the heating chamber and the auxiliary wall extending along the outer wall. That is, even when the baffle plate is removed, the hot air in the combustion chamber is reliably guided to the upstream side of the fan disposed in the heating chamber. Therefore, even if the heating device is operated in a state where the baffle plate is mistakenly removed, a situation in which hot air is stagnated in the combustion chamber can be avoided.
Further, the hot air sucked into the fan and discharged from the outer peripheral surface of the hot air passes not only above the baffle plate but also below the baffle plate, and is supplied to the cooking area where the food is arranged. That is, the flow of hot air inside the heating chamber is not hindered by the presence of the baffle plate. Thereby, possibility that a baking unevenness will arise in the foodstuff arrange | positioned at a cooking area | region can be reduced.
In addition, the supply of hot air to the side of the fan arranged in the heating chamber (near the center of the fan) is performed through the gap formed between the outer wall of the heating chamber facing the fan and the auxiliary wall facing it. It is realized by using it as a route. Therefore, it is not necessary to separately arrange dedicated parts inside the heating chamber to guide the hot air to the vicinity of the center of the fan, so that the heating chamber can be made compact and the dedicated parts can be The cost required to prepare can also be reduced.

FIG. 1 is a cross-sectional view showing a schematic configuration of a convection oven according to the first prior art. FIG. 2 is a cross-sectional view showing a schematic configuration of a convection oven according to the second prior art. FIG. 3 is a cross-sectional view schematically showing the concept of the heating device according to the present invention. FIG. 4 is a front view showing the configuration of the heating apparatus according to the embodiment of the present invention. FIG. 5 is a top view showing the configuration of the heating apparatus shown in FIG. FIG. 6 is a side view of the heating device shown in FIG. FIG. 7 is a perspective view showing a configuration of a fan used in the heating device according to the embodiment of the present invention. FIG. 8 is a front view showing the configuration of the fan shown in FIG. FIG. 9 is a side view showing the configuration of the fan shown in FIGS. 7 and 8.

1. Technical Concept of the Present Invention First, the technical concept of the present invention will be described with reference to FIG.
FIG. 3 is a cross-sectional view schematically showing the main part of the heating apparatus according to the present invention.
The heating device 100 according to the present invention heats the hot air generated in the combustion chamber 110, the combustion chamber 110 that generates hot air, the heating chamber 120 that is disposed above the combustion chamber 110, and heats the contained food with hot air. An auxiliary wall 130 attached to the combustion chamber 110 and the heating chamber 120 to guide the chamber 120, a fan 140 disposed in the heating chamber 120, and hot air in the heating chamber 120 disposed in the heating chamber 120. And baffle plate 150 that forms the flow path. In FIG. 3, in order to briefly show the technical idea of the present invention, the expression of a housing or the like that accommodates each component is omitted.

  A discharge port 110b for discharging the generated hot air to the outside is formed in one outer wall 110a extending in the vertical direction of the combustion chamber 110. In one outer wall 120a extending in the vertical direction of the heating chamber 120, for example, a suction port 120b formed in a circular shape at the center of the outer wall 120a is formed.

  An auxiliary wall 130 is provided outside the outer wall 120a of the heating chamber 120 so as to extend along the outer wall 120a with a gap 160 between the auxiliary wall 130 and the outer wall 120a. Specifically, as an example, the auxiliary wall 130 surrounds the entire outer wall 120a (including the inlet 120b) of the heating chamber 120 and the entire outlet 110b of the combustion chamber 110 so as to surround the outer wall 120a and the combustion chamber of the heating chamber 120. 110 is attached to the outer wall 110a. Thus, the gap 160 formed between the outer wall 120a of the heating chamber 120 and the auxiliary wall 130 communicates with the discharge port 110b formed in the combustion chamber 110 and the suction port 120b formed in the heating chamber 120. Yes.

  An opening 130 a through which the shaft 170 a of the motor 170 passes is formed at the center of the auxiliary wall 130. The opening 130 a has a size that forms a gap with the shaft 170 a of the motor 170, thereby realizing a sufficient inflow of outside air from the gap into the heating chamber 120.

  The fan 140 is fixed to the tip end of the shaft 170 a that has passed through the opening 130 a formed in the auxiliary wall 130 and the suction port 120 b formed in the outer wall 120 a of the heating chamber 120. The baffle plate 150 is provided to face the fan 140. Any type of fan 140 and baffle plate 150 may be used according to the flow path of hot air to be formed inside the heating chamber 120. FIG. 3 shows an example in which a fan called a double fan, that is, a fan having a two-stage structure in which a first fan 140a and a second fan 140b are combined is used as the fan 140. Further, as the baffle plate 150, a plate that forms a flow path of hot air inside the heating chamber 120 in cooperation with the fan 140 is used. Details of the fan 140 and the baffle plate 150 will be described later.

  In the heating device 100 having such a configuration, when the fan 140 disposed inside the heating chamber 120 rotates, the hot air generated in the combustion chamber 110 is discharged from the discharge port 110b and passes through the gap 160 (F1). The air is supplied to the side of the first fan 140a of the fan 140 through the suction port 120b formed in the outer wall 120a of the heating chamber 120 (F2). The hot air supplied to the side of the first fan 140a is sucked into the first fan 140a and discharged from the outer peripheral surface of the first fan 140a (F3). The hot air discharged from the outer peripheral surface of the first fan 140a is a gap between the outer peripheral end of the baffle plate 150 and the inner wall (the upper wall 120c and the lower wall 120d) of the heating chamber 120 surrounding the baffle plate 150, and the baffle plate 150. Through the openings provided at both ends (not shown) and flows into the cooking area 120e where the food (not shown) is arranged (F4). The hot air flowing into the cooking area 120e circulates in the cooking area 120e to heat the food, and then passes through the opening 150a formed in the central portion of the baffle plate 150 and is sucked into the second fan 140b. (F5). The hot air sucked into the second fan 140b is discharged from the outer peripheral surface of the second fan 140b, and the outer end of the baffle plate 150 and the inner wall of the heating chamber 120 surrounding it (the upper wall 120c and the lower wall 120d). And again through the opening (not shown) provided at both ends of the baffle plate 150 and into the cooking area 120e where the food (not shown) is arranged (F6).

Thus, in the heating apparatus 100 according to the present invention, the hot air generated in the combustion chamber 110 passes through the gap 160 formed between the outer wall 120a of the heating chamber 120 and the auxiliary wall 130 extending along the outer wall 120a. Then, it is guided to the side of the fan 140. That is, even when the baffle plate 150 is removed, the hot air in the combustion chamber 110 is reliably guided to the upstream side of the fan 140. Therefore, even if the heating device 100 is operated in a state where the baffle plate 150 is mistakenly removed, a situation in which hot air stays inside the combustion chamber 110 can be avoided.
Further, the hot air sucked into the fan 140 and discharged from the outer peripheral surface thereof passes not only above the baffle plate 150 but also below, and is supplied to the cooking area 120e. That is, the flow of hot air inside the heating chamber 120 is not hindered by the presence of the baffle plate 150. Thereby, possibility that a baking unevenness will arise in the foodstuff arrange | positioned at the cooking area | region 120e can be reduced.
The supply of hot air to the side of the fan 140 disposed in the heating chamber 120 (near the center of the fan 140) is between the outer wall 120a of the heating chamber 120 facing the fan 140 and the auxiliary wall 130 facing this. This is realized by using the gap 160 formed as a hot air path. Therefore, since it is not necessary to separately arrange a dedicated component inside the heating chamber 120 in order to guide the hot air to the vicinity of the center portion of the fan 140, the heating chamber 120 can be made compact and dedicated. It is possible to reduce the cost required to prepare the parts.
Furthermore, the auxiliary wall 130 is formed with an opening 130a through which the shaft 170a passes, and the opening 130a has a shape sufficiently larger than the diameter of the shaft 170a. Therefore, outside air can flow into the heating chamber 120 through a gap formed between the opening 130a and the shaft 170a. This outside air can cool the shaft 170a heated directly or indirectly by hot air. Thereby, the situation where the motor 170 breaks down with the heat which transmitted the shaft 170a can be avoided.

2. Embodiments according to the present invention
2-1. About the overall configuration

Next, an embodiment that specifically realizes the technical idea of the present invention described above will be described with reference to FIGS. FIG. 4 is a front view showing the configuration of the heating apparatus according to the embodiment of the present invention. FIG. 5 is a top view showing the configuration of the heating apparatus shown in FIG. FIG. 6 is a side view of the heating device shown in FIG.
The heating apparatus 200 according to the present embodiment mainly includes an oven casing 400 and a gas range casing 300 disposed on the oven casing 400. Since the gas range casing 300 is configured by a gas range according to the related art, a detailed description thereof will be omitted.

  The oven casing 400 mainly includes a combustion chamber 410 that generates hot air, a heating chamber 420 that is disposed above the combustion chamber 410 and heats the stored food material with hot air, and heats the hot air generated in the combustion chamber 410. An auxiliary wall 430 attached to the combustion chamber 410 and the heating chamber 420 to guide the chamber 420, a fan 440 disposed in the heating chamber 420, and hot air in the heating chamber 420 disposed in the heating chamber 420 A baffle plate 450 that adjusts the flow rate and flow of the air and a motor 470 that rotates the fan 440 are housed therein.

  Each component housed in the oven casing 400 will be described in detail. It should be noted that FIGS. 4 to 6 show cross sections of the oven casing 400.

  Referring to FIG. 4, a burner 412 is accommodated in the combustion chamber 410 as a heating means. A discharge port 410b for discharging the generated hot air to the outside is formed in one outer wall 410a extending in the vertical direction of the combustion chamber 410. For example, the discharge port 410b is formed as a rectangular opening extending along the depth direction of the combustion chamber 410 (for example, the Y direction shown in FIGS. 5 and 6). A heating chamber 420 is placed on the upper wall 410c of the combustion chamber 410.

The inside of the heating chamber 420 is roughly divided into two regions by a baffle plate 450. That is, the inside of the heating chamber 420 is centered on the baffle plate 450 and is located upstream of the baffle plate 450 (on the right side in FIG. 4) and downstream of the baffle plate 450 (in FIG. 4). Cooking area 424 located on the left side of the drawing.
The fan installation area 422 is literally an area where the fan 440 is installed. The cooking area 424 is an area for storing foods to be cooked. For example, as shown in FIG. 4, a plurality of trays T are installed in the cooking region 424 at predetermined intervals in the vertical direction, and a plurality of ingredients (not shown) are placed on each tray T. It is supposed to be placed.
In order to put food into and out of the cooking area 424 of the heating chamber 420, the handle 482 fixed to the door 480 shown in FIGS. 5 and 6 is operated to rotate the door 480 in the rotation direction M shown in FIG. By doing so, the cooking region 424 can be opened as shown in FIG. 4 or closed as shown in FIGS. 5 and 6 (in FIG. 4, the expression of the door 480 and the handle 482 is omitted). Please note.)

  As shown in FIGS. 4 to 6, the cooking area 424 communicates with the exhaust passage 490 formed in the oven casing 400 so as to extend in the horizontal direction, and the exhaust passage 490. The gas passage casing 300 communicates with an exhaust passage 310 formed so as to extend in the vertical direction.

  4 and 5, for example, one outer wall 420a extending in the vertical direction of the heating chamber 420 is formed with, for example, a suction port 420b formed in a circular shape or the like at the center of the outer wall 420a.

  An auxiliary wall 430 is provided outside the outer wall 420a of the heating chamber 420 so as to extend along the outer wall 420a with a gap 460 between the auxiliary wall 430 and the outer wall 420a. Specifically, as an example, the auxiliary wall 430 surrounds the entire outer wall 420a (including the inlet 420b) of the heating chamber 420 and the entire outlet 410b of the combustion chamber 410 so as to surround the outer wall 420a and the combustion chamber of the heating chamber 420. It is attached to the outer wall 410a of 410. As can be seen from the fact that the auxiliary wall 430 has a substantially U-shaped cross-sectional shape as a cross-sectional shape seen from above (FIG. 5) and a cross-sectional shape seen from the front (FIG. 4). 430 is formed such that the gap 460 has a substantially rectangular parallelepiped shape. Thus, the gap 460 formed between the outer wall 420a of the heating chamber 420 and the auxiliary wall 430 communicates with the discharge port 410b formed in the combustion chamber 410 and the suction port 420b formed in the heating chamber 420. Yes.

  Referring to FIGS. 4 and 5, an opening 430 a through which the shaft 470 a of the motor 470 passes is formed near the center of the auxiliary wall 430. The opening 430 a has a size that forms a gap with the shaft 470 a of the motor 470, thereby realizing sufficient inflow of outside air from the gap into the heating chamber 420.

  The fan 440 is fixed to the tip of the shaft 470 a that has passed through the opening 430 a formed in the auxiliary wall 430 and the suction port 420 b formed in the outer wall 420 a of the heating chamber 420. The baffle plate 450 is detachably attached to the inside of the heating chamber 420 so as to face the fan 440.

  As apparent from FIGS. 4 and 5, the heating chamber 420 has an oven casing 400 whose outer wall 420 a is perpendicular to the front surface of the oven casing 400 (that is, the surface on which the door 480 is formed). It is arranged inside. That is, the motor 470 is disposed not on the rear side of the heating chamber 420 but on the side (the right side in FIGS. 4 and 5). Thereby, the length of the depth direction (Y direction in FIG. 5) of the heating chamber 420 can be ensured largely. That is, the length of the heating chamber 420 in the depth direction can be ensured without increasing the length of the oven casing 400 in the depth direction.

2-2. Next, a specific configuration of the fan 440 will be described with reference to FIGS. 7 to 9. FIG. 7 is a perspective view showing a configuration of a fan used in the heating device according to the embodiment of the present invention. FIG. 8 is a front view showing the configuration of the fan shown in FIG. FIG. 9 is a side view showing the configuration of the fan shown in FIGS. 7 and 8.

  The fan 440 is mainly configured by a first fan 500 and a second fan 600. That is, a portion sandwiched between the base member 700 and the annular member 510 with the disc-shaped base member 700 having an opening 702 in the center as a center constitutes the first fan 500, while the base member 700 A portion sandwiched between the annular member 610 constitutes the second fan 600. The base member 700 is shared by the first fan 500 and the second fan 600.

First, paying attention to the first fan 500, the base member 700 and the annular member 510 are provided so as to be parallel to each other at a predetermined interval. In a space formed between the base member 700 and the annular member 510, a plurality of plate-like blades extending radially from the vicinity of the center of the base member 700 and the annular member 510 toward the outer periphery of the base member 700 and the annular member 510. 520 is provided so as to be perpendicular to the base member 700 and the annular member 510. Such a blade 520 is integrally formed with, for example, a trapezoidal fixing member 540 fixed in contact with the base member 700 and a rectangular fixing member 560 fixed in contact with the annular member 510. It can be realized as a shape. The length of each of the plurality of blades 520 is, as a most preferable form, long (large in area) for increasing the wind pressure (that is, from the vicinity of the opening 702 of the base member 700 to the outer periphery of the base member 700). Stuff).
According to such a configuration of the first fan 500, the base member 700 and the two blades 520 are surrounded, and the volume of the enclosed portion increases as the outer circumference of the base member 700 is advanced. A plurality of passages are formed such that the air passes through a region surrounded by 700, two blades 520, and the annular member 510 (this region acts as a hot air discharge port) and then passes to the outside.

  Next, paying attention to the second fan 600, it can be seen that the fan 440 has a symmetrical shape with the base member 700 as the center, as is apparent from FIGS. That is, the first fan 500 and the second fan 600 have the same configuration except that they use different surfaces of the front surface and the back surface of the base member 700. Therefore, the detailed configuration of the second fan 600 is omitted.

Here, the feature of the fan 440 according to the present embodiment is compared with the feature of the fan according to the prior art.
In the double fan according to the prior art, a large number (about 100) of blades are attached along the outer periphery of the disk-shaped base member. Each blade is not long enough to extend near the center of the base member, but short enough to occupy the vicinity of the outer periphery of the base member. In addition, the cross-sectional shape of each blade forms an arc instead of a straight line. That is, in the double fan according to the prior art, the total number of blades is large, but the area of each blade is reduced in order to reduce the weight of the entire double fan. When such a double fan is used, the amount of hot air supplied into the oven increases, but the air pressure tends to decrease. As a result, there is a possibility that uneven baking occurs in the food disposed in the oven.
On the other hand, in fan 440 according to the present embodiment, the cross-sectional shape of each blade 520 is linear, and the size of each blade 520 extends from the vicinity of the center of base member 700 to the outer periphery. Is getting bigger. Further, the total number of blades 520 is also small (for example, about 20). Thus, when the fan 440 according to the present embodiment is used, both the wind pressure and the air volume of the hot air supplied to the oven can be increased as compared with the case where the double fan according to the conventional technique is used. Therefore, it is possible to reduce the possibility that uneven baking occurs in the food disposed in the oven.

  The fan 440 having the above-described configuration is obtained by attaching a member 470b for fixing the shaft 470a of the motor 470 shown in FIGS. 4 and 5 to the opening 702 formed in the base member 700. 470 is fixed to a shaft 470a. The fan 440 is installed in the fan installation area 422 of the heating chamber 420 such that the first fan 500 faces the motor 470 and the second fan faces the baffle plate 450 (see FIG. 4). .

2-3. About a specific configuration of the baffle plate 450, any baffle plate 450 may be used. With reference to the above, FIG. 6 shows the shape of a baffle plate 450 as one specific example.

As shown in FIG. 6, the baffle plate 450 is formed to have a substantially rectangular shape as a whole. Near the center, a large number of small rectangular openings 452 are densely formed so as to form a substantially circular shape as a whole. Referring to FIG. 4, these multiple openings 452 are provided with the intention of passing the hot air from the cooking region 424 of the heating chamber 420 to the second fan 600 of the fan 440.
Referring to FIG. 6 again, a large number of small rectangular openings 454 are densely formed at both ends of the baffle plate 450 so as to form a substantially rectangular shape as a whole. Referring to FIG. 4, the large number of openings 454 allow hot air discharged from the outer peripheral surfaces of the first fan 500 and the second fan 600 of the fan 440 to pass to the cooking area 424 of the heating chamber 420. It is intended to guide you.

  When such a baffle plate 450 is installed inside the heating chamber 420 as shown in FIG. 6, a gap 420 e is formed between the upper end surface of the baffle plate 450 and the upper wall 420 c of the heating chamber 420. A gap 420 f is formed between the lower end surface of the baffle plate 450 and the lower wall 420 d of the heating chamber 420. As shown in FIG. 4, the gaps 420 e and 420 f allow hot air discharged from the outer peripheral surfaces of the first fan 500 and the second fan 600 of the fan 440 to pass through the cooking area 424 of the heating chamber 420. It was formed with the intention of leading up to.

3. Next, the operation of the heating apparatus 200 having the above-described configuration will be described.
4 to 6, when the fan 440 disposed inside the heating chamber 420 rotates, hot air (F10) generated in the burner 412 of the combustion chamber 410 is discharged from the discharge port 410b (F11). It moves upward in the gap 460 (F12), enters the fan installation area 424 of the heating chamber 420 via the suction port 420b of the heating chamber 420, and is supplied to the side of the first fan 500 of the fan 440. . The hot air supplied to the side of the first fan 500 is sucked into the first fan 500 (F13) and discharged from the discharge port formed on the outer peripheral surface of the first fan 500 (F14). The hot air exhausted from the first fan 500 passes through gaps 420e and 420f formed above and below the baffle plate 450 and a large number of openings 454 formed in the baffle plate 450, and enters the cooking region 424. Inflow (F15). The hot air that has flowed into the cooking region 424 circulates in the cooking region 424 from the periphery of the cooking region 424 toward the center and travels toward the baffle plate 450 (F16). The air then passes through 452 and is sucked into the second fan 600 of the fan 440 (F17). Further, the hot air sucked into the second fan 600 is discharged from the discharge port formed on the outer peripheral surface of the second fan 600 (F18). The hot air exhausted from the second fan 600 passes through gaps 420e and 420f formed above and below the baffle plate 450 and a large number of openings 454 formed in the baffle plate 450, and enters the cooking region 424. It flows in again. Thereafter, the hot air flowing into the cooking area 424 circulates in the cooking area 424 and the fan installation area 422 by following the paths F16 to F18. Note that some of the hot air circulating through the cooking region 424 passes through the exhaust passage 490 formed in the oven casing 400 and the exhaust passage 310 formed in the gas range casing 300 to the outside. (F19). As a result, the food (not shown) placed on the plurality of trays T arranged in the cooking region 424 is cooked by hot air circulating in the cooking region 424.

  The heating device 200 according to the present embodiment realizes the technical concept of the present invention described above with reference to FIG. 3 as a more specific device (a heating device in which an oven range and a gas range are integrated). It is a thing. Therefore, the effect obtained by the present invention described with reference to FIG. 3 can be obtained in the same manner in the heating apparatus 200 according to the present embodiment.

  In the present embodiment, as the most preferable mode, the heating chamber 420 is arranged in the oven casing 400 so that the outer wall 420a of the heating chamber 420 is perpendicular to the front surface of the oven casing 400. In this case, the mode in which the motor 470 is disposed on the side of the heating chamber 420 has been described. However, the present invention is not limited to such a form, and the heating chamber 420 is disposed in the oven casing 400 so that the outer wall 420a of the heating chamber 420 is parallel to the front surface of the oven casing 400. In other words, the motor 470 can be disposed behind the heating chamber 420.

DESCRIPTION OF SYMBOLS 100 Heating device 110 Combustion chamber 110b Discharge port 120 Heating chamber 120a Heating chamber outer wall 120b Suction port 130 Auxiliary wall 130a Opening 140 Fan 140a First fan 140b Second fan 150 Baffle plate 160 Gap 170 Motor 170a Shaft 200 Heating device 300 Gas range housing 400 Oven housing 410 Combustion chamber 410b Discharge port 420 Heating chamber 420a Heating chamber outer wall 420b Suction port 422 Fan installation region 424 Cooking region 430 Auxiliary wall 430a Opening 440 Fan 450 Baffle plate 452, 454 Opening 460 Gap 500 First 1 fan 510 annular member 520 blade 540, 560 fixing member 600 second fan 700 base member

Claims (6)

A heating device used to heat food,
A combustion chamber in which an exhaust port for generating hot air and discharging the hot air is formed;
A heating chamber that is disposed above the combustion chamber and has a suction port for sucking hot air formed in an outer wall extending in a vertical direction, and for heating the stored food by hot air sucked;
A gap is formed between the heating chamber and the outer wall so as to extend along the outer wall, and the gap is communicated with the discharge port formed in the combustion chamber and the suction port formed in the heating chamber. An auxiliary wall provided in
A fan for forcibly sucking hot air generated in the combustion chamber from the suction port into the heating chamber by rotating while being provided facing the suction port in the heating chamber;
The fan is a double fan comprising a first fan part and a second fan part having the same configuration, wherein the first fan part and the second fan part are:
With a common base member in between
A plurality of flat plate blades are arranged perpendicular to the base member, and each cover member is opposed to the base member with the plate width of the flat plate blade,
The length of the flat blade extends from near the center of the base member to the outer peripheral edge,
The flat blades are arranged radially so that the volume surrounded by the base member and the two adjacent flat blades increases toward the outer peripheral edge of the base member,
The double fan is configured such that hot air sucked from a hole of the cover member passes through a hot air discharge port on an outer peripheral surface of the fan surrounded by the two flat blades adjacent to the base member and the cover member. A heating device.   A flow path forming member that is arranged so as to face the fan inside the heating chamber and through which hot air passes from above and below the fan and adjusts the flow rate and flow of the hot air inside the heating chamber; The heating apparatus according to claim 1. The suction port has an opening, and is formed in the outer wall of the heating chamber;
The heating device according to claim 1 or 2, wherein the auxiliary wall is attached to the outer wall so as to surround the suction port, whereby the gap communicates with the suction port.   The auxiliary wall has an opening configured to pass through a rotary shaft connected to the fan through the suction port and to form a gap that allows inflow of outside air between the rotary shaft and the auxiliary shaft. The heating apparatus according to any one of claims 1 to 3, further comprising: A housing that houses the combustion chamber, the heating chamber, and the auxiliary wall;
The heating apparatus according to any one of claims 1 to 4, wherein the casing houses the heating chamber such that the outer wall of the heating chamber is perpendicular to a front surface of the casing. The base member is a disk-shaped member;
Each cover member facing the base member is an annular member,
The heating device according to any one of claims 1 to 5.

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