JP3967291B2 - Cooker - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a heating cooker that cooks food in a heating cabinet by circulating hot air.
[0002]
[Prior art]
A conventional cooking oven such as a convection oven cooks the contents in the heating chamber by circulating hot air, and is provided with a centrifugal fan for forcibly circulating hot air in the heating chamber. Set the temperature and cooking time. In addition to the oven cooking function, the heating cooker has an electromagnetic heating cooking function, a dielectric heating cooking function, a steam cooking function, a combined cooking function such as an oven, electromagnetic heating, induction heating, and steam.
[0003]
FIG. 25 is a front view showing a configuration of a conventional cooking device. The heating cooker of FIG. 25 is a box 11 that is provided with heat insulation means, a heating chamber 15 that is housed in the box 11 and stores the contents 19, and heating that heats the contents 19 in the heating box 15. It consists of a container.
[0004]
The air in the heating chamber 15 is sucked from the suction port 18, the air is heated by the heater 16 such as a heater to be hot air, and the hot air is blown out into the heating chamber 15 by the blower 30. The blower 30 includes a centrifugal fan 31, a drive motor 32 that drives the centrifugal fan 31, and a fan casing 33 that pivotally supports the centrifugal fan 31. In FIG. 25, 11 is a box, 12 is a heat insulating door, 13 is an operation part, 15 is a heating chamber, 16 is a heater, 17 is a blower outlet, 18 is a suction port, 19 is a cooked food, and 20 is a support part. , 22 is a rotating dish, 41 is a back wall, and 42 is a side wall.
[0005]
FIG. 26 is a plan sectional view of a conventional cooking device, and an arrow A indicates the flow of hot air in the heating chamber 15. The air in the heating chamber 15 is sucked into the centrifugal fan 31 from the central suction port 18 and blows out from the periphery of the centrifugal fan 31. The blown air is heated by the heater 16 and blown out into the heating chamber 15 from the outlets 17 on both the left and right sides. The blown hot air flows through the heating chamber 15 toward the front side, hits the heat insulating door 12, changes the direction of the flow, concentrates in the center, and is sucked from the suction port 18 by the suction force of the blower 30, and enters the heating chamber 15. Circulate.
[0006]
However, since the centrifugal fan rotates in a constant rotation direction, the hot air blown out from the blowout port is shifted to the rotation direction side. Therefore, the amount of hot air from the air outlet cannot be blown out uniformly, and the temperature distribution in the heating chamber becomes non-uniform, and there is a drawback that uneven baking occurs in the cooked product.
[0007]
Therefore, Patent Document 1 provides a wind direction plate that guides the hot air from the centrifugal fan to the outlet on the reverse rotation direction side of the centrifugal fan, and increases the amount of hot air from the outlet on the reverse rotation direction side of the centrifugal fan. The amount of hot air is made uniform. Therefore, the cooking speed can be increased and the temperature distribution in the heating chamber can be made uniform, and the cooking performance can be improved.
[0008]
[Patent Document 1]
Japanese Patent Publication No. 07-111256 (paragraphs 0010 to 0011, FIG. 1)
[0009]
FIG. 27 is a plan sectional view of another conventional cooking device, and an arrow A indicates the flow of hot air in the heating chamber 15. Air in the heating chamber 15 is sucked into the centrifugal fan 31 from the suction port 18 on the right side toward the back wall 41 and blown out from the periphery of the centrifugal fan 31. The blown air is heated by the heater 16 and blown out from the central air outlet 17 toward the center in the heating chamber 15. The blown hot air flows through the heating chamber 15 toward the front side, hits the heat insulating door 12, changes the flow direction, flows toward the right side toward the back wall 41, and is sucked from the suction port 18 by the suction force of the blower 30. Circulate in the heating chamber 15.
[0010]
[Problems to be solved by the invention]
By the way, in a heating cooker, it is possible to appropriately select two kinds of placing dishes, a rotating dish and a fixed dish, as a placing dish for the cooked food, due to differences in the size, shape, cooking method, etc. Generally it is.
[0011]
The rotating dish is rotationally driven by a driving motor connected to a driving shaft provided on the bottom surface in the heating chamber so that the food can be cooked uniformly. Note that the rotating dish is usually a circular dish because of the necessity of rotational driving.
[0012]
On the other hand, a rectangular dish having an area equivalent to the horizontal cross section of the heating cabinet is often used so that as many dishes as possible can be placed. The fixed dish is placed on a dish receiving shelf installed on the side wall in the heating chamber.
[0013]
However, the ideal hot air circulation path is different between cooking using a rotating dish and cooking using a fixed dish. For example, in the case of cooking using a rotating dish, even if the temperature distribution in the heating chamber and the flow of hot air are not necessarily uniform, uneven baking of the cooked product can be suppressed by rotating the rotating dish. Rather, as shown in FIG. 27, a method of concentrating hot air directly on the food to be directly sprayed is effective in shortening the cooking time.
[0014]
On the other hand, in the case of cooking with a fixed dish, all cooked items placed on the fixed dish need to be cooked without uneven baking. The heating cooker shown and the heating cooker of Patent Document 1 that is an improved version of the cooking cooker effectively circulates the inside of the heating chamber uniformly without concentrating hot air on a specific portion.
[0015]
However, since none of the conventional cooking devices has a means for changing the circulation path of the hot air in the heating chamber, either cooking using a rotating dish or cooking using a fixed dish Only one of the hot air circulations was advantageous.
[0016]
Then, this invention aims at providing the heating cooker which can select the circulation path | route of a suitable hot air according to the mounting plate | board which loaded the foodstuff, ie, the shape of a stored item, a magnitude | size, etc. .
[0017]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention is a heating cooker that heats an item accommodated in a heating chamber with hot air, and is variable to change the direction in which the hot air flows in the heating chamber according to the item. Means are provided.
[0018]
The variable means arranges the wind direction variable member at a position where the hot air blown out from the air outlet formed in the heating chamber hits, thereby changing the state in which the wind direction variable member hits the hot air, and the flowing direction. Is variable. At this time, the wind direction variable member has a configuration in which it can be rotated so that the angle to which the hot air hits changes, a mode in which it can be moved in and out so that the area that hits the hot air changes, and a surface that contacts the hot air of the wind direction variable member The shape changes.
[0019]
In the form in which the wind direction variable member is provided to be rotatable, the wind direction variable member is rotated so that the hot air is directed in a specific direction. Depending on the angle at which the hot air hits, a flow in which the hot air goes in a specific direction can be formed. For example, when the wind direction varying member is provided in the vicinity of the air outlet, the wind direction varying member may interfere with the open position and the flow of hot air so that the hot air is directed in a specific direction. Rotate between the positions that do not. By setting the wind direction variable member to the open position, the flow of hot air blown out from the air outlet is directed in a specific direction. Moreover, the hot air circulates in the entire heating chamber without hitting the wind direction variable member by setting the position so as not to disturb the flow of the hot air.
[0020]
In addition, when the wind direction variable member is provided on a wall surface different from the wall surface on which the air outlet is formed, the wind direction variable member rotates between a posture that hits the hot air and a posture that does not hit so that the hot air is directed in a specific direction. To do. The flow of the hot air blown out from the air outlet is directed in a specific direction by setting the air direction variable member in a posture that hits the hot air. Moreover, by setting it as the attitude | position which does not hit a wind direction variable member, a hot air circulates the whole inside of a heating chamber, without hitting a wind direction variable member.
[0021]
Next, in the form in which the air direction varying member protrudes, the air direction varying member is provided in the vicinity of the air outlet, and the hot air blown out from the air outlet is caused to appear and disappear. The area of the air direction variable member against the hot air changes, and the direction in which the hot air flows can be varied according to the size of the area. That is, as the protruding area increases, the amount of hot air hits increases. The direction in which the hot air that hits the air direction variable member and the hot air that travels straight is combined and flows changes. As the amount of hit increases, the direction changes from the straight direction to the direction in which the air direction variable member protrudes. Therefore, the hot air can be varied in a specific direction by controlling the protrusion amount.
[0022]
Furthermore, in the form in which the shape of the surface of the wind direction varying member changes, the wind direction varying member is rotatably supported on a wall surface different from the wall surface on which the air outlet is formed, and has a shape protruding into the heating chamber. When hot air hits one surface of the wind direction variable member, the hot air is directed in a specific direction, and when hot air hits the other surface, the hot air passes through the wind direction variable member. Such two surface shapes are a concave surface and a convex surface with respect to the flow of hot air.
[0023]
The wind direction variable member is changed according to the contents. Specifically, it is determined in which direction the hot air should be directed depending on whether or not the contents are moved. In view of this, a control unit is provided that determines whether to flow the hot air by determining whether to heat the moving object or to heat the stationary object. The control unit changes the wind direction variable member so that the hot air is directed in a specific direction when the container is moved, and changes the wind direction variable member so that the hot air is distributed in the heating chamber when the container is stationary. Let
[0024]
In order to perform the above-described determination, an accommodation detection unit is provided for detecting the state of the contents in the heating chamber, for example, the type and shape of the placing plate, the size of the cooked food, and the like. Based on the detection result of the contained object detection unit, the control unit determines whether or not movement is possible. For example, when the storage unit detects that the mounting plate is a rotating plate such as a round plate or the size of the food to be mounted on the mounting plate is small, the control unit moves the storage item and heats it. to decide. In addition, when it is detected that the mounting plate is a fixed plate such as a square plate or the shape of the food to be mounted on the mounting plate is large, the control unit fixes and heats the contents. In addition, the contained object detection part should just be what can detect the state of the contained object with an ultrasonic sensor, a weight sensor, an infrared sensor, etc.
[0025]
  The other variable means includes a fixing member provided at a position where the hot air blows out and a blower means for changing the hot air blowing state. The variable means changes the flow direction by changing the wind speed when the hot air hits the fixed member. The fixing member is disposed on a wall surface different from the wall surface on which the blow air outlet is formed with a curved surface that contacts the hot air. The control unit determines whether to heat while moving the stored item or to heat the stored item in a stationary state, and when the stored item moves, the wind speed becomes weak, and the stored unit is stationary. Controls the air blowing means by the control unit so that the wind speed becomes strong. Therefore, the direction in which hot air hits the fixing member can be varied according to the wind speed.
  Moreover, a wind direction variable member is provided in the blower outlet so that it can be moved in and out so that the area on which the hot air hits changes. For example, the air direction variable member protrudes in a direction in which the area increases so that the hot air is directed in a specific direction.
  Further, the wind direction variable member is provided at a position where the hot air in the heating chamber hits so as to be switchable between a posture that hits the hot air and a posture not hit. For example, the wind direction varying member is rotatably supported on a wall surface different from the wall surface on which the air outlet is formed, and the hot air is directed in a specific direction when the wind direction varying member is in a posture to hit the hot air.
  Moreover, a wind direction variable member is arrange | positioned in the position where the hot air in a heating chamber hits, and the shape of the surface which hits the hot air of a wind direction variable member changes. For example, the wind direction variable member has two surfaces with different shapes, is rotatably supported on a wall surface different from the wall surface on which the air outlet is formed, and when hot air hits one surface of the wind direction variable member, When hot air is directed in the direction and hits the other surface, the hot air passes through the wind direction variable member.
  In addition, a control unit is provided for determining whether to flow the hot air by determining whether to heat while moving the stored item or to heat the stored item in a stationary state, and the control unit identifies the hot air when the stored item moves. The air direction varying member is changed so as to be directed in the direction of, and when the contents are stationary, the air direction varying member is changed so that the hot air is distributed in the heating chamber. Specifically, a stored object detection unit that detects the state of the stored item in the heating chamber is provided, and the control unit determines whether or not movement is possible from the detected state of the stored item.
                                                                    more than
[0026]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the cooking device of the present invention heats a stored object, a box 11 having a front opening that has been subjected to heat insulation, a heating chamber 15 that is housed in the box 11 and stores the stored contents. It comprises a heater 16, a blower 30 that blows hot air heated by the heater 16 into the heating chamber 15, and a controller 14 that controls the heater 16 and the blower 30.
[0027]
A heat insulating door 12 is provided on the front surface of the box 11 so as to be freely opened and closed, and an operation unit 13 for inputting instructions from a user of the cooking device is disposed. In the heating chamber 15, support portions 20 a and 20 b for mounting dishes, which are stored items, are formed on the side wall 42 and the bottom surface. The placing trays supported by the support portions 20 a and 20 b are for placing the food 19, and there are two types, a rotating dish 22 and a fixed dish 21. In addition, a storage thing shows a mounting plate and the cooking thing 19 or the cooking thing 19 single-piece | unit.
[0028]
The rotating tray 22 is detachably mounted on a support portion 20a provided at the center of the bottom surface of the heating chamber 15. The support portion 20a is rotated by a driving device. Therefore, the rotating tray 22 can be moved in the heating chamber 15. Note that the rotating tray 22 is usually formed in a circular shape because of the necessity of rotational driving.
[0029]
The fixed dish 21 is often used in a rectangular shape having an area equivalent to the horizontal cross section of the heating cabinet 15 so that many dishes 19 can be placed thereon. The fixed tray 21 is detachably supported by the support portion 20b placed on the side wall 42 in the heating chamber 15. The loading tray can be arbitrarily selected by the user.
[0030]
The air heated by the heater 16 is blown out from the blower outlet 17 into the heating chamber 15 as hot air by the blower 30. The hot air blown out circulates in the heating chamber 15 and is sucked from the suction port 18.
[0031]
The blower outlet 17 is formed in the four corners of the back wall 41 in the heating chamber 15, and the inlet 18 is formed in the center, respectively. Moreover, in this embodiment, the blower outlet 17 and the suction inlet 18 are each formed of the collection of a several hole with a diameter of 5 mm. In addition, the shape of the blower outlet 17 and the inlet 18 is not this limitation. You may form in a lattice shape or a louver shape.
[0032]
The control unit 14 including a microcomputer controls the blower 30, the heater 16, and the like based on an instruction input from the operation unit 13. At this time, the control part 14 indirectly discriminate | determines from the detection result of a contained thing detection part whether the mounting tray of either the stationary tray 21 or the rotation tray 22 is mounted. A weight sensor is used for the contained object detection unit. A weight sensor detects the load concerning the support parts 20a and 20b of a mounting tray. A control part will judge it as the fixed plate | plate 21 if the support part 20b of a side wall is loaded. If a load is applied to the support portion 20a on the bottom surface, it is determined as a rotating dish.
[0033]
You may provide contact type sensors, such as a limit switch and a micro switch, in the support parts 20a and 20b of a mounting tray. In this case, it is the same as the weight sensor. If the support part 20b of the side wall 42 is switched on, it is determined as the fixed dish 21, and if the support part 20a on the bottom surface is switched on, it is determined as a rotating dish. As another example, an ultrasonic sensor, an optical sensor, or the like may be provided on the wall surface in the heating chamber 15. The sensor can detect the distance from the mounting tray and can detect the presence or absence of the mounting tray based on the detection result. Instead of using a sensor as the contained item detection unit, information input from the operation unit 13 is used. That is, a key for selecting which mounting plate is used may be provided so that it can be directly discriminated. Further, the contents may be determined based on the cooking menu. That is, since the placement dish differs depending on the cooking menu, it can be determined by selecting the cooking menu.
[0034]
Here, the heating cooker of the present invention is provided with variable means for directing the flow of hot air in an appropriate direction according to the contents in order to uniformly heat the food. Hereinafter, the variable means will be described.
[0035]
[First Embodiment]
2 is a plan cross-sectional view of the cooking device of the first embodiment, FIG. 3 is a perspective view of the air direction variable member of the first embodiment, and FIG. 4 is a plan cross-sectional view showing the direction of hot air flow with respect to the stationary contents. FIG. 5 is a plan sectional view showing the direction in which hot air flows with respect to the moving contents. The first position is an acute angle with respect to the air outlet 17, and the second position is an obtuse angle with respect to the air outlet 17.
[0036]
As shown in FIG. 2, the variable means includes a rotatable wind direction variable member 51 and a drive unit that rotates the wind direction variable member 51. As shown in FIG. 3, the air direction varying member 51 is a metal flat plate disposed in the vicinity of each outlet 17 of the back wall 41. The wind direction varying member 51 is attached to the vertical axis 52, and the vertical axis 52 is rotatably supported on the upper wall. The motor shaft of the motor 53 is connected to one end of the vertical axis 52. The vertical axis 52 and the motor 53 constitute a drive unit.
[0037]
Next, control of the flow of hot air in the above configuration will be described. First, the user places the food 19 on the placing plate and stores it in the heating chamber 15. When the cooking content is input from the operation unit 13, the control unit 14 drives and controls the blower 30, the heater 16, and the like based on the instruction input from the operation unit 13, and starts cooking the food 19. . Moreover, the control part 14 determines the direction through which a hot air flows based on the detection result of the accommodation detection part. Accordingly, the rotation angle of the wind direction support member 51 determines whether the first position is a position where the hot air is opened so as to go in a specific direction or the second position is a position where the flow of the hot air is not disturbed. Then, the motor 53 is driven to rotate the wind direction variable member 51 so as to be in a predetermined position.
[0038]
Here, as shown in FIG. 4, when the mounting tray is the fixed tray 21, the air direction varying member 51 is set to the second position. That is, it is parallel to the back wall 41 and rotates in a direction that does not interfere with the flow of hot air. As shown by the arrow B in FIG. 4, the hot air is blown out from the blowout port 17, flows in the heating chamber 15 toward the front side, hits the heat insulating door 12, changes the flow direction, and moves toward the center. The hot air blown out from the four corners is folded back, concentrated in the center, and sucked from the suction port 18 by the suction force of the blower 30.
[0039]
Therefore, the flow which circulates the inside of the heating chamber 15 as a whole is made. As a result, hot air is applied to the entire cooked item 19 placed on the fixed plate 21, so that there is no uneven baking as a whole and cooking can be performed.
[0040]
Next, as shown in FIG. 5, when the mounting tray is the rotating tray 22, the wind direction varying member 51 is set to the first position. That is, it rotates to a position parallel to the direction from the blower outlet 17 toward the center in the heating chamber 15. As shown by arrow C in FIG. 5, the hot air is blown out from the air outlet 17 and flows toward the center in the heating chamber 15. The hot air blown out from the four corners is folded back, concentrated in the center, and sucked from the suction port 18 by the suction force of the blower 30.
[0041]
Therefore, the flow which circulates through a part in the heating chamber 15 intensively is made. Thereby, the foodstuff 19 passes the location where hot air concentrated by the foodstuff 19 rotating. Thereby, since hot air hits the whole thing 19 with respect to the foodstuff 19, it can heat-cook more efficiently in the foodstuff 19 to rotate.
[0042]
Note that the flow of hot air can be arbitrarily changed by arbitrarily setting the position where the wind direction varying member 51 rotates. The air direction varying member 51 rotates from a position covering a part of the outlet 17 when viewed from the front to a position parallel to the back wall 41 and not obstructing the flow of hot air. By adjusting the opening angle of the wind direction varying member 51, it is possible to apply hot air in accordance with the position where the food 19 is placed. Therefore, it is possible to cook by heating hot air appropriately on the contents, there is no uneven baking, and the cooking time can be shortened.
[0043]
[Second Embodiment]
FIG. 6 is a plan sectional view of the cooking device of the second embodiment, FIG. 7 is a plan sectional view showing the direction in which hot air flows with respect to a stationary container, and FIG. It is a plane sectional view showing a direction.
[0044]
As shown in FIG. 6, the variable means includes a rotatable wind direction variable member 61 and a drive unit that rotates the wind direction variable member 61. The air direction varying member 61 is a metal flat plate disposed on the side wall 42, which is a wall surface different from the back wall 41 in which the blowout port 17 is formed, and is a long plate formed between the top wall and the bottom wall. . The support portion 20 b provided on the side wall 42 is provided at a position that does not fall within the driving range of the wind direction varying member 61. The wind direction varying member 61 is attached to a vertical axis 62, and the vertical axis 62 is rotatably supported on the upper wall. The motor shaft of the motor 63 is connected to one end of the vertical axis 62. The vertical axis 62 and the motor 63 constitute a drive unit.
[0045]
Next, control of the flow of hot air in the above configuration will be described. First, the user places the food 19 on the placing plate and stores it in the heating chamber 15. When the cooking content is input from the operation unit 13, the control unit 14 drives and controls the blower 30, the heater 16, and the like based on the instruction input from the operation unit 13, and starts cooking the food 19. . Moreover, the control part 14 determines the direction through which a hot air flows based on the detection result of the accommodation detection part. That is, it is determined whether the position of the wind direction indicating member 61 is the first position that is an attitude that hits hot air or the second position that is an attitude that does not hit hot air. The motor is driven to rotate the wind direction variable member 61 so as to be in a predetermined position.
[0046]
Here, as illustrated in FIG. 7, when the mounting tray is the fixed tray 21, the air direction varying member 61 is set to the second position. That is, it approaches the side wall 42, becomes parallel, and rotates in a direction that does not disturb the flow of hot air. As shown by the arrow B in FIG. 7, the hot air is blown out from the blowout port 17, flows in the heating chamber 15 toward the front side, hits the heat insulating door 12, changes the flow direction, and moves toward the center. The hot air blown out from the four corners is folded back, concentrated in the center, and sucked from the suction port 18 by the suction force of the blower 30.
[0047]
Therefore, the flow which circulates the inside of the heating chamber 15 as a whole is made. As a result, hot air is applied to the entire cooked item 19 placed on the fixed plate 21, so that there is no uneven baking as a whole and cooking can be performed.
[0048]
Next, as shown in FIG. 8, when the mounting tray is the rotating tray 22, the wind direction varying member 61 is set to a first position that is perpendicular to the flow. That is, it rotates in parallel with the direction from the installation position of the wind direction varying member 61 toward the center in the heating chamber 15. As shown by an arrow C in FIG. 8, the hot air is blown out from the air outlet 17, flows in the heating chamber 15 toward the front side, hits the air direction variable member 61, and flows toward the center in the heating chamber 15. The hot air blown out from the four corners is folded back, concentrated in the center, and sucked from the suction port 18 by the suction force of the blower 30.
[0049]
Therefore, there is a flow in which hot air is concentrated on the food 19 placed on the rotating dish 22. Thereby, if the foodstuff 19 rotates and passes the location where hot air concentrated, it will hit the whole foodstuff 19. The cooked food 19 that rotates can be cooked more efficiently.
[0050]
Since the wind direction varying member 61 is provided in the center of the side wall 42 in the front-rear direction, the air direction varying member 61 rotates to an angle closest to the side wall 42, that is, 0 degrees, and an angle toward the center, that is, 90 degrees. Therefore, since fine adjustment of the angle is not necessary, it can be controlled easily and accurately. Furthermore, by changing the attachment position of the air direction varying member 61 provided on the side wall 42, the range in which the hot air is applied to the food 19 can be changed.
[0051]
[Third Embodiment]
FIG. 9 is a plan sectional view of the cooking device of the third embodiment, FIG. 10 is a perspective view of the wind direction variable member of the third embodiment, and FIG. 11 is a plan sectional view showing the direction of hot air flow with respect to the stationary contents FIG. 12 and FIG. 12 are plan sectional views showing the direction in which hot air flows with respect to the moving contents.
[0052]
As shown in FIG. 9, the variable means includes a wind direction variable member 71 that moves linearly, and a drive unit that causes the wind direction variable member 71 to appear in and out of the air outlet 17. As shown in FIG. 10, the wind direction varying member 71 is a metal flat plate. The rear wall 41 is arranged in the vicinity of each outlet 17 so as to protrude at an acute angle with respect to the outlet 17. At this time, the back wall 41 is formed with a slit portion 75 for projecting the air direction varying member 71 from the fan casing 33. Further, a guide rail (not shown) for guiding the wind direction varying member 71 in a specific direction is provided between the slit portion 75 and the vertical axis 72, and the wind direction varying member 71 is guided so as to be able to appear and retract. The angle at which the air direction varying member 71 protrudes is an angle parallel to the direction from the outlet 17 toward the center of the heating chamber 15.
[0053]
The air direction variable member 71 is provided with racks 74 on both the upper and lower sides of one side of the flat plate, and the rack 74 and the gear 73 provided on the longitudinal axis 72 in the fan casing 33 are attached so as to mesh with each other. Yes. The vertical axis 72 is rotatably supported on the upper wall. A motor shaft of the motor 74 is connected to one end of the vertical axis 72. The vertical axis 72, the gear 73, and the motor 74 constitute a drive unit.
[0054]
Next, control of the flow of hot air in the above configuration will be described. First, the user places the food 19 on the placing plate and stores it in the heating chamber 15. When the cooking content is input from the operation unit 13, the control unit 14 drives and controls the blower 30, the heater 16, and the like based on the instruction input from the operation unit 13, and starts cooking the food 19. . Moreover, the control part 14 determines the direction through which a hot air flows based on the detection result of the accommodation detection part. Accordingly, whether the position of the wind direction support member 71 is a first position that is a posture in which the hot air protrudes in a specific direction or a second position that is a posture that is stored so as not to hit the hot air, The motor 74 is driven to move the air direction variable member 71 so as to be in a predetermined position.
[0055]
Here, as shown in FIG. 11, when the mounting tray is the fixed tray 21, the wind direction varying member 71 is set to the second position. That is, the air direction variable member 71 is housed in the fan casing 33 so as not to protrude. As shown by the arrow B in FIG. 11, the hot air is blown out from the blowout port 17, flows in the heating chamber 15 toward the front side, hits the heat insulating door 12, changes the flow direction, and moves toward the center. The hot air blown out from the four corners is folded back, concentrated in the center, and sucked from the suction port 18 by the suction force of the blower 30.
[0056]
Therefore, the flow which circulates the inside of the heating chamber 15 as a whole is made. As a result, hot air is applied to the entire cooked item 19 placed on the fixed plate 21, so that there is no uneven baking as a whole and cooking can be performed.
[0057]
Next, as shown in FIG. 12, when the mounting tray is the rotating tray 22, the wind direction varying member 71 is set to the first position. That is, it protrudes at an angle parallel to the direction from the blower outlet 17 toward the center in the heating chamber 15. As shown by arrow C in FIG. 12, the hot air is blown out from the air outlet 17 and flows toward the center in the heating chamber 15. The hot air blown out from the four corners concentrates in the center and is sucked from the suction port 18 by the suction force of the blower 30.
[0058]
Therefore, there is a flow in which hot air is concentrated on the food 19 placed on the rotating dish 22. Thereby, if the foodstuff 19 rotates and passes the location where hot air concentrated, it will hit the whole foodstuff 19. The cooked food 19 that rotates can be cooked more efficiently.
[0059]
Since the wind direction varying member 71 is housed so as not to protrude from the inner wall 41 of the heating chamber 15, when the hot air is circulated throughout the heating chamber 15, the wind direction varying member 71 affects the hot air flow. It can be completely suppressed. In the embodiment, the appearance position of the wind direction varying member 71 is not limited to the two stages of the first position and the second position, and a plurality of stages such as three stages and four stages may be provided. As a result, the direction in which the hot air that hits the wind direction varying member 71 flows and the hot air that travels straight are combined, and the direction of the wind direction varying member can be gradually changed from the straight direction. Moreover, although the installation position of the wind direction variable member 71 is provided in the back side of the back wall 41 so that it can appear and retract, it is not this limitation. For example, it may be possible to appear and disappear from the top surface or the bottom surface.
[0060]
Moreover, the angle which the wind direction variable member 71 protrudes can be set variously. For example, a slide plate that slides in parallel with the back wall 41 is provided so as to open a part of the back wall 41 and close the opening. A slit portion 75 for projecting the wind direction varying member 71 so as to be able to appear and retract is formed on the slide plate. Then, between the slit portion 75 and the vertical axis 72, both ends of the guide rail for guiding the air direction variable member 71 are rotatably connected to the slide plate and the vertical axis 72, respectively, and the angle of the guide rail is adjusted. It can be so. Thereby, even if the slit part 75 moves to the left and right, the guide rail can follow the slit part 75, and the wind direction variable member 71 can appear and disappear at an arbitrary angle.
[0061]
[Fourth Embodiment]
FIG. 13 is a plan sectional view of the cooking device of the fourth embodiment, FIG. 14 is a perspective view of the wind direction varying member of the fourth embodiment, and FIG. 15 is hot air around the wind direction varying member with respect to the stationary contents. FIG. 16 is a plan sectional view showing the direction in which hot air flows with respect to the stationary contents, and FIG. 17 shows the direction in which hot air flows around the air direction variable member with respect to the moving contents. FIG. 18 is a plan sectional view showing the direction in which hot air flows with respect to the moving contents.
[0062]
As shown in FIG. 13, the variable means includes a wind direction variable member 81 having two surfaces with different shapes and a drive unit that rotates the wind direction variable member 81. As shown in FIG. 14, the air direction varying member 81 is disposed on the side wall 42, which is a wall surface different from the inner wall 41 that forms the air outlet 17, and does not contact the support portion 20 b provided on the side wall 42. It is provided on an extension line from 17 to the heat insulating door 12. The wind direction varying member 81 is formed in a mountain shape having two inclined surfaces, and each inclined surface has a first surface 82 convex outward and a second surface 83 convex inward. That is, the first surface 82 is formed as a convex surface and the second surface 83 is formed as a concave surface. The air direction variable member 81 is formed on the disk 84, and the disk 84 is rotatably supported on the side wall 42. A motor shaft of the motor is connected to the disk 84. The disk 84 and the motor constitute a drive unit. The second surface 83 is curved so that the direction of the tangent at the center side end of the second surface faces the center of the heating chamber 15.
[0063]
Next, control of the flow of hot air in the above configuration will be described. First, the user places the food 19 on the placing plate and stores it in the heating chamber 15. When the cooking content is input from the operation unit 13, the control unit 14 drives and controls the blower 30, the heater 16, and the like based on the instruction input from the operation unit 13, and starts cooking the food 19. . Moreover, the control part 14 determines the direction through which a hot air flows based on the detection result of the accommodation detection part. Accordingly, it is possible to determine whether the second surface 83 of the wind direction support member 81 is the first position where it hits the hot air or the first position where the first surface 82 hits the hot air, and the motor is driven to determine the wind direction variable member 81. Rotate to be in the right position.
[0064]
Here, as shown in FIGS. 15 and 16, when the mounting tray is the fixed tray 21, the wind direction varying member 81 is set to the second position. That is, the wind direction varying member 81 is rotated in the direction in which the first surface 82 faces the air outlet 17 side. As shown by the arrow B in FIG. 16, the hot air is blown out from the air outlet 17 and flows in the heating chamber 15 toward the front side. When hot air hits the wind direction varying member 81, it flows along the first surface 82 and passes through the wind direction varying member 81. Then, the hot air hits the heat insulating door 12 to change the direction of the flow and go to the center. The hot air blown out from the four corners is folded back, concentrated in the center, and sucked from the suction port 18 by the suction force of the blower 30. The flow of hot air around the wind direction varying member 81 flows along the shape of the wind direction varying member 81 as shown in FIG.
[0065]
Therefore, the flow which circulates the inside of the heating chamber 15 as a whole is made. As a result, hot air is applied to the entire cooked item 19 placed on the fixed plate 21, so that there is no uneven baking as a whole and cooking can be performed.
[0066]
Next, as shown in FIGS. 17 and 18, when the mounting tray is the rotating tray 22, the air direction variable member 81 is set to the first position. That is, the air direction variable member 81 is rotated in the direction in which the second surface 83 faces the outlet 17 side. As shown by an arrow C in FIG. 18, the hot air is blown out from the air outlet 17, flows in the heating chamber 15 toward the front side, and hits the air direction variable member 81. The hot air changes the flow direction along the second surface 83 and flows toward the center in the heating chamber 15. The hot air blown out from the four corners concentrates in the center and is sucked from the suction port 18 by the suction force of the blower 30. The flow of hot air around the wind direction varying member 81 flows along the shape of the wind direction varying member 81 as shown in FIG.
[0067]
Therefore, there is a flow in which hot air is concentrated on the food 19 placed on the rotating dish 22. Thereby, if the foodstuff 19 rotates and passes the location where hot air concentrated, it will hit the whole foodstuff 19. The cooked food 19 that rotates can be cooked more efficiently.
[0068]
The air direction variable member 81 has two different shapes, but is not limited thereto. For example, a plurality of surfaces such as three surfaces and four surfaces may be provided. By changing the surface of the wind direction variable member 81 on which the hot air strikes, the direction of the hot air can be set in various ways. Therefore, hot air can be reliably applied according to the position and state of the food 19.
[0069]
[Fifth Embodiment]
FIG. 19 is a plan sectional view of the cooking device of the fifth embodiment, FIG. 20 is a perspective view of the fixing member of the fifth embodiment, and FIG. 21 is a flow of hot air around the fixing member with respect to the stationary contents FIG. 22 is a cross-sectional plan view showing the direction in which hot air flows with respect to the stationary object, and FIG. 23 is a perspective view showing the direction in which hot air flows around the fixing member with respect to the moving object. FIG. 24 is a plan sectional view showing the direction in which hot air flows with respect to the moving contents.
[0070]
As shown in FIG. 19, the variable means includes a fixing member 91 having two surfaces with different shapes and a blowing means for changing the wind speed of hot air hitting the fixing member 91. As shown in FIG. 20, the fixing member 91 is disposed on the side wall 42, which is a wall surface different from the back surface 41 that forms the air outlet 17, and does not contact the support portion 20 b provided on the side wall 42. To the heat insulating door 12. The fixing member 91 is formed in a mountain shape having two slopes, and each slope has a curved first surface 92 and a flat second surface 93. The first surface 92 and the second surface 93 intersect at an acute angle, and the first surface 92 is formed on a surface that is gently continuous from the side wall 42. The fixing member 91 is disposed so as not to move with the first surface 92 facing the back wall 41 side where the air outlet 17 is formed. The first surface has the same shape as the second surface of the fourth embodiment.
[0071]
The control unit 14 drives and controls the blower 30 according to the result of the determination whether the food item 19 is heated while being moved or the stationary food item 19 is heated. When the contents are moved, the rotational speed of the centrifugal fan 31 is suppressed so that the wind speed becomes weak, and the wind speed of the hot air blown from the outlet 17 is controlled to a relatively slow first wind speed. When the contents are stationary, the rotational speed of the centrifugal fan 31 is increased so as to increase the wind speed, and the wind speed of the hot air blown from the outlet 17 is controlled to a relatively high second wind speed.
[0072]
Next, control of the flow of hot air in the above configuration will be described. First, the user places the food 19 on the placing plate and stores it in the heating chamber 15. When the cooking content is input from the operation unit 13, the control unit 14 drives and controls the blower 30, the heater 16, and the like based on the instruction input from the operation unit 13, and starts cooking the food 19. . Moreover, the control part 14 determines the direction through which a hot air flows based on the detection result of the accommodation detection part. Accordingly, it is determined whether the first wind speed that the hot air passes along the wind direction variable member 91 or the second wind speed that directs the hot air in a specific direction, the drive motor 32 is driven, and the centrifugal fan 31 is determined. It rotates at the specified rotation speed.
[0073]
Here, as shown in FIGS. 21 and 22, when the mounting tray is a fixed tray 21, the first wind speed is controlled. As shown by the arrow B in FIG. 22, the hot air is blown out from the air outlet 17 and flows in the heating chamber 15 toward the front side. The hot air flows along the first surface 92 of the fixing member 91 and passes through the fixing member 91. And the direction of a flow changes and hits the heat insulation door 12, and goes to the center. The hot air blown out from the four corners is folded back, concentrated in the center, and sucked from the suction port 18 by the suction force of the blower 30.
[0074]
As shown in FIG. 21, the flow of hot air around the wind direction variable member 91 slows the speed of the hot air blown from the outlet 17, so that the hot air hitting the fixed member 91 is peeled off from the fixed member 91. Without passing through the boundary line between the first surface 92 and the second surface 93, it flows along the fixing member 91 to the front surface in the heating chamber 15.
[0075]
Therefore, the flow which circulates the inside of the heating chamber 15 as a whole is made. As a result, hot air is applied to the entire cooked item 19 placed on the fixed plate 21, so that there is no uneven baking as a whole and cooking can be performed.
[0076]
Next, as shown in FIGS. 23 and 24, when the mounting tray is the rotating tray 22, the second wind speed is controlled. As shown by an arrow C in FIG. 24, the hot air is blown out from the blowout port 17, flows in the heating chamber 15 toward the front side, hits the fixing member 91, and flows toward the center in the heating chamber 15. The hot air blown out from the four corners concentrates in the center and is sucked from the suction port 18 by the suction force of the blower 30.
[0077]
As shown in FIG. 23, by increasing the speed of the hot air blown from the outlet 17, the hot air hitting the fixing member 91 is separated at the boundary line between the first surface 92 and the second surface 93 of the fixing member 91. It starts and flows in the direction in which the first surface 92 of the fixing member 91 is extended, and flows to the center in the heating chamber 15.
[0078]
Therefore, there is a flow in which hot air is concentrated on the food 19 placed on the rotating dish 22. Thereby, if the foodstuff 19 rotates and passes the location where hot air concentrated, it will hit the whole foodstuff 19. The cooked food 19 that rotates can be cooked more efficiently.
[0079]
Since the fixing member 91 does not need to be driven, there is no fear of a drive mechanism failure or the like. Further, the direction in which the hot air flows can be changed by a simple control of adjusting the wind speed at which the hot air blows out. Further, by changing the curvature of the first surface 92 of the fixing member 91, the direction in which the hot air flows can be arbitrarily set.
[0080]
As mentioned above, although the application example of this invention was demonstrated based on drawing, in this invention, the variable means of the hot air of a heating cooker is not this limitation. For example, a blower outlet may be provided in the back wall and the side wall in the heating chamber, and hot air may be blown out from both the blower outlets. Thereby, the direction in which the hot air blown from the back wall flows is changed by the hot air blown from the side wall.
[0081]
Moreover, in the control of the air direction of the air direction variable member of the first to third embodiments, if the angle is controlled within an acute angle range with respect to the air outlet, a flow for concentrating hot air on the food is arbitrarily set. Can do. Moreover, if the angle is controlled within the range of the obtuse angle with respect to the air outlet, a flow that circulates in the heating chamber as a whole can be made. Thereby, it can cook more efficiently with respect to a foodstuff, without being caught by the mounting place, shape, etc. of a foodstuff.
[0082]
In the placing plate moving means, a belt conveyor may be provided as a circulation conveyance path that moves in a ring shape in the heating chamber. Further, a plurality of mounting dishes may be provided, and each of the provided dishes may be rotated or circulated arbitrarily. The material of the wind direction variable member is not limited to this. The material is not limited to metal but may be glass fiber or carbon that does not change shape due to heat.
[0083]
【The invention's effect】
As is apparent from the above description, according to the present invention, by providing the air direction variable member or the fixing member in the heating chamber, it is possible to appropriately select the direction in which the hot air flows with respect to the contents in the heating chamber. it can. Thereby, hot air can be appropriately blown on the contents for cooking by heating, so that there is no uneven baking and the cooking time can be shortened.
[Brief description of the drawings]
FIG. 1 is a front view of a cooking device having a wind direction varying member according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional plan view of the heating cooker according to the first embodiment.
FIG. 3 is a perspective view of a wind direction varying member according to the first embodiment.
FIG. 4 is a cross-sectional plan view showing a direction in which hot air flows with respect to a stationary container according to the first embodiment.
FIG. 5 is a cross-sectional plan view showing the direction in which hot air flows with respect to the moving contents of the first embodiment.
FIG. 6 is a cross-sectional plan view of a heating cooker according to a second embodiment.
FIG. 7 is a cross-sectional plan view showing a direction in which hot air flows with respect to a stationary container according to the second embodiment.
FIG. 8 is a cross-sectional plan view illustrating the direction in which hot air flows with respect to the moving contents of the second embodiment.
FIG. 9 is a cross-sectional plan view of a heating cooker according to a third embodiment.
FIG. 10 is a perspective view of a wind direction varying member according to a third embodiment.
FIG. 11 is a plan sectional view showing the direction in which hot air flows with respect to a stationary container according to the third embodiment.
FIG. 12 is a plan sectional view showing the direction in which hot air flows to the moving contents of the third embodiment.
FIG. 13 is a plan sectional view of a heating cooker according to a fourth embodiment.
FIG. 14 is a perspective view of a wind direction varying member according to a fourth embodiment.
FIG. 15 is a perspective view showing a direction in which hot air flows around a wind direction varying member with respect to a stationary container according to a fourth embodiment.
FIG. 16 is a plan cross-sectional view showing the direction in which hot air flows to the stationary container of the fourth embodiment.
FIG. 17 is a perspective view showing the direction in which hot air flows around the air direction variable member with respect to the moving object of the fourth embodiment.
FIG. 18 is a cross-sectional plan view showing the direction in which hot air flows to the moving contents of the fourth embodiment.
FIG. 19 is a cross-sectional plan view of a heating cooker according to a fifth embodiment.
FIG. 20 is a perspective view of a fixing member according to a fifth embodiment.
FIG. 21 is a perspective view showing a direction in which hot air flows around a fixed member with respect to a stationary container according to a fifth embodiment.
FIG. 22 is a cross-sectional plan view showing the direction in which hot air flows to the stationary container of the fifth embodiment.
FIG. 23 is a perspective view showing the direction in which hot air flows around the fixed member with respect to the moving object of the fifth embodiment.
FIG. 24 is a cross-sectional plan view showing the direction in which hot air flows to the moving contents of the fifth embodiment.
FIG. 25 is a front view showing a configuration of a conventional cooking device.
FIG. 26 is a plan sectional view showing the direction of hot air flowing in a conventional cooking device.
FIG. 27 is a cross-sectional plan view showing the direction in which hot air flows in a conventional cooking device.
[Explanation of symbols]
13 Operation unit
14 Control unit
15 Heating chamber
17 Air outlet
19 Cooking
21 Fixed dishes
22 Rotating dish
51, 61, 71, 81, 91 Wind direction variable member
53, 63, 75 Drive motor
73 Gear
74 racks
82 First surface convex outward
83 Second surface convex inward
91. Fixing member of fifth embodiment
92 Curved first surface
93 Flat second surface
A Conventional hot air flow path
B Flow path of hot air when fixed plate is installed
C Flow path of hot air when a rotating pan is installed

Claims (3)

A heating cooker that heats the contents stored in the heating chamber with hot air blown out from the air outlet,
On the wall surface in the heating chamber, a wind direction variable member that varies the direction in which the hot air flows in the heating chamber is provided at a position where the hot air blown out from the outlet hits,
The wind direction varying member is formed in a mountain shape having a first surface facing the air outlet and a second surface intersecting the first surface at an acute angle ,
The heating cooker, wherein the first surface is formed to be concavely curved. A blower means for changing the blowing state of hot air hitting the wind direction variable member,
The blowing means includes a first wind speed that the hot air passes along the first surface and the second surface without peeling from the wind direction changing member, and the hot air flows along the first surface, The cooking device according to claim 1, wherein the second wind speed that peels off at the boundary line of the second surface can be varied. It is determined whether to heat while moving the contents, or to heat the contents in a stationary state, and includes a control unit that determines the flow of hot air,
The control unit controls the blowing unit so that the hot air becomes the first wind speed when the accommodation moves, and the blowing unit causes the hot air to become the second wind speed when the accommodation is stationary. The cooking device according to claim 2, wherein the cooking device is controlled.
more than

Images